uk: Математика, природничі науки

description: Julian Hegemann destilliert den selbstgemachten Wein und berichtet über den anaeroben Stoffwechsel.

uk: вхід без авторизації

name: Die Chemie des Weines II: Destillation des Weines und anaerober Stoffwechsel


Paul Jerabek

type: Person

keywords: Biochemie Experiment

de: Chemie

fi: kemia

uk: Хімія

en: Chemistry

fr: Chimie

da: Kemi

es: Química

nl: Scheikunde

de: Mathematik, Naturwissenschaften

uk: Математика, природничі науки

en: Mathematics, Natural Sciences

description: Julian Hegemann bestimmt mit verschiedenen Methoden den Alkoholgehalt unseres selbstgemachten Weines.

TIB AV-Portal

type: Service

type: WebContent

type: MediaObject

@language: de

cs: přihlášení není vyžadováno

de: keine Anmeldung erforderlich

uk: вхід без авторизації

en: no login required

nl: geen login vereist

name: Die Chemie des Weines III: Bestimmung des Alkoholgehalts

name: Paul Jerabek, Julian Hegemann, Andreas Authmann

type: Organization

cs: Video

de: Video

fi: Video

uk: Відео

en: Video

fr: Vidéo

da: Video

nl: Video

es: Video


keywords:
Physikalische Chemie
Theoretische Chemie
Vortrag

uk: Математика, природничі науки

description: Prof. Weitzel zeigt die Sicht des Chemikers auf die chemische Bindung.

uk: вхід без авторизації

name: Die chemische Bindung aus Sicht des Chemikers


Keynote speaker

cs: Informatika

de: Informatik

fi: tietojenkäsittelytiede

uk: Комп'ютерні науки

en: Computer Science

fr: Informatique

da: Datalogi

es: Ciencias de la Computación

nl: Informatica

cs: Technické vědy

de: Ingenieurwissenschaften

fi: tekniikka

uk: Інженерія

en: Engineering Sciences

fr: Ingénierie

da: Ingeniørvidenskab

es: Ingeniería

nl: Engineering

description: It doesn't matter who you are. What matters is to reflect on what is going on in a world where the power play has shifted to the fifth domain. When international relations shift because of one person taking USB drives for a tour of all three superpowers, when single exploits are worth tens of thousands of dollars to military and law enforcement agencies around the world, while at the same time the underlying vulnerabilities are being declared dual use technologies, a.k.a. weapons, in international arms trade agreements, hacking has definitively changed. A hacker without an illegal past, a voluntary NATO mission co-director that never served in the military, a university teacher without a high school degree it doesn't matter who you are. What matters is to reflect on what is going on in a world where the power play has shifted to the fifth domain and what that means for you, your families and your country.

@language: en

uk: вхід без авторизації


uk: Комп'ютерні науки

description: Edward Snowden szivárogtatásai, illetve a D-Wave Systems és a Lockheed Martin vagy a Google közös ügyletei miatt az utóbbi idoben elotérbe került a kvantumszámítógép és a post-quantum cryptography (pqcrypto) témája, már a szabványosítók körében is: IETF RFC draft dokumentumok, ETSI jelentések születtek a különbözo pqcrypto lehetoségekrol, a Shor algoritmusról, illetve a jelenleg még használható RSA paraméterezés követelményei is szigorodtak a BSI útmutatóiban. Azt tudjuk, hogy léteznek olyan kriptográfiai algoritmusok és mögöttes matematikai problémák, amelyek a kvantumszámítógépet használva is erosnek bizonyulnak, azonban ezek felhasználásáról a jelenlegi X.509-alapú, CA-hierarchiákhoz szokott világban (amelyet az eIDAS EU regulation jogszabály is eloír) még kevés tapasztalat van. Az eloadásban az egyik hash-alapú aláíró algoritmus (LDWM, pqcrypto) tulajdonságait, felhasználhatóságát mutatom be X.509-es adatstruktúrákat használó környezetben.

uk: вхід без авторизації

name: Post-Quantum Cryptography: prime questions = primary questions


Hacking Team malware

uk: Комп'ютерні науки

description: Nem kell hosszan bemutatni a mára már közismert Remote Control System (RCS) rendszert, amely az olasz Hacking Team cég állami nyomozati szervek (rendorség, titkosszolgálatok stb.) számára fejlesztett terméke. Az a 400 GB adat, amelyet a gyártócégtol elloptak és a netre kitettek, sok gondolkodnivalót ad szakmabelieknek, politikusoknak és a szélesebb közönségnek. Eloadásom három részbol áll: az elso a termék muködésének rövid bemutatása. Milyen rendszer fejlesztettek ki az exploitok célbajuttatására (Exploit Delivery Network - Android, Fake App Store) és a már megfertozött eszközök megfigyelésére (proxy chain). A második rész az Android eszközök megfertozésére használt exploitok részletes elemzése. Bemutatom a bonyolult, meglehetosen összetett, sok lépésbol álló fertozési folyamatot. Ehhez több, vadonatúj 0 day sebezhetoséget használtak fel. Ezeket ugyancsak ismertetem. Az eloadás harmadik részében a feltunésmentes muködést szolgáló, az ido elotti felfedezést akadályozó technikákról lesz szó (Virtual Machine és Cuckoo elkerülés, antivirus termékek monitorozása stb.).

uk: вхід без авторизації


Fitness Tracker: Hack in Progress

uk: Комп'ютерні науки

description: Wearables are extremely trendy nowadays, but actually, we know little about their security: what information do they send on us? How reliable are they? Can they be hacked? etc. The fact they rely on proprietary protocols does not help. So, precisely, we focus on understanding the communication with the tracker. Eventually, that's how we learn how to turn the Flex into a wearable random number generator.

uk: вхід без авторизації


uk: Комп'ютерні науки

description: Chroot is not a security solution, still lots of people use it as it was one. Based on chroot, Jail was introduced in FreeBSD, Containers in Solaris, and LXC on Linux. However, Unices implemented chroot in different ways. Some of the implementations are easy to break, some of them are just partly breakable but one thing is sure: you would be surprised how many. The presentation focuses on escape techniques and the tool called chw00t, a small handy one that makes it easy to pop shells out of the chroot environment.

uk: вхід без авторизації

name: Chw00t: Breaking Unices' chroot solutions


Hacktivity 2013: Hacking CCTV systems

uk: Комп'ютерні науки

description: CCTV systems are in their prime today, and are used all over the world. These systems however can lead to a false sense of security. Most of them use proprietary software, which has not been adequately tested for security vulnerabilities. I will demonstrate this by reverse engineering the firmware, and will use that information to gain root access to the security system remotely. (This will be a demo with an Identivision DVR, and will cover the process all the way from first analizing the security equipment, to reverse engineering the firmware, using the information found to gain remote access to the system. Then I will show some things that can be done, once root access is gained.) I will also explain some of the most common security mistakes that manufacturers and users make with these security systems. I hope to give a general awareness about using their use, and the risks involved.

uk: вхід без авторизації


uk: Комп'ютерні науки

description: In this talk, we present BAB0, a custom sample that we developed for testing purposes and that bypassed 5 cutting-edge APT attack detection tools. We explain why BAB0 escaped detection both in the phase of infecting the victim and later during continuous communications with a remote C&C server. We show the tricks that we designed and implemented in BAB0 and try to make some demonstrations as well. We also elaborate on the problems of testing anti-APT products in general, and give some hints on new testing methodologies that are currently emerging within the AV test community.

uk: вхід без авторизації

name: BAB0: A custom sample that bypassed cutting-edge APT attack detection tools


uk: Комп'ютерні науки

description: While graph databases are primarily known as the backbone of the modern dating world, this nerd has found a much more interesting application for them: program analysis. This talk aims to demonstrate that graph databases and the typical program representations developed in compiler construction are a match made in heaven, allowing large code bases to be mined for vulnerabilities using complex bug descriptions encoded in simple, and not so simple graph database queries. This talk will bring together two well known but previously unrelated topics: static program analysis and graph databases. After briefly covering the "emerging graph landscape" and why it may be interesting for hackers, a graph representation of programs exposing syntax, control-flow, data-dependencies and type information is presented, designed specifically with bug hunting in mind. Our open-source program analysis platform Joern is then introduced, which implements these ideas and has been successfully used to uncover various vulnerabilities in the Linux kernel. Capabilities and limitations of the system will then be demonstrated live as we craft queries for buffer overflows, memory disclosure bugs and integer-related vulnerabilities.

uk: вхід без авторизації

name: Mining for Bugs with Graph Database Queries


uk: Комп'ютерні науки

description: Due to the popularity of the portable document format (PDF), malware writers continue to use it to deliver malware via web downloads, email attachments and other infection vectors in both targeted and non-targeted attacks. It is known that PDF attackers can break detection by using polymorphic techniques to hide malicious code, randomizing JavaScript, obfuscating embedded shellcode or using cascading filters. Malware writers have always tried hard to develop new techniques to bypass detection. Some recent PDF attack campaigns we have seen are typical examples of such new endeavors from malware writers: a) Simple but effective URL aliasing technique to download malware. b) Using PDF to deliver specific topic related text content for search engine poisoning. c) Encapsulating PDF malware inside a PDF file to break detection. In this paper we will investigate the recent PDF malware campaigns using - and often abusing - these new techniques.

uk: вхід без авторизації

name: Make "Invisible" Visible: Case Studies in PDF Malware


Comparing the incomparables

uk: Комп'ютерні науки

description: It is common belief that APT groups are masters of exploitation. If anyone, they should know everything about it, right? Our research into the real world uses of the CVE-2014-1761 vulnerability shows that it is far from being true. It is a common practice in the anti-malware world that the security products are compared to each other in comparative tests. Even the tests themselves can be evaluated by the criteria of the Anti-Malware Testing Standards Organization. The only players, who are not rated, are the malware authors. This is for a good reason: their activities cover a wide range of operations, that dont fully match and cant be exactly measured. The deep analysis of the samples using the CVE-2014-1761 vulnerability gave us a rare opportunity to compare the skills of a few different malware author groups. This is not a full and comprehensive test, but given the complexity of the exploit we could estimate the skills only in a very narrow slice of the full set: the understanding of the exploit. But the situation is the same as with any other test: if you know exactly what you are measuring, you can make valid conclusions. The presentation will detail the exploitation process, explaining the role and implementation of the RTF elements used in the process, the ROP chain and the shellcodes. We will investigate the different malware families that were using this vulnerability, and discuss the depth of modification into the exploit. This will give us a chance to rate the understanding and exploiting skill of the authors behind these malware families. The comparative analysis gave an opportunity to draw a relationship chart between the different malware families, showing strong correlation with previously known intelligence, and adding a couple of new relations. The final purpose of the comparative analysis is to understand the strengths and weaknesses of our enemies in the cyber warfare. The more we know about them, the greater our chances are for successful defense.

uk: вхід без авторизації


uk: Комп'ютерні науки

description: We will go trough the aviation industrie to see how they work and how they deal with problems they encounter. Then we show how developers can solve problems using the same methodology. This presentation will show to accomplish the same in the Software Development Life Cycle of your applications in a DevOpS environment where multiple deployments are done in a day and where security is important.

uk: вхід без авторизації

name: OWASP Security knowledge Framework: Survival is not mandatory


uk: Комп'ютерні науки

description: A password shouldnt be on a post-it note. In plain view. On the console. The password to a locked door is called a key. So if a reporter wants to get the point across that certain people shouldn't have access to a particular key, would it be wise for said reporter to show that key to the world? This talk show how not to run this story, why we should care and maybe make you rethink your physical security a bit.

uk: вхід без авторизації

name: Post-its, post-its, post-its everywhere (and how they relate to physical keys)


uk: Комп'ютерні науки

description: Each of these techniques can then also be deployed in few different ways. Both, protection techniques and deployment architectures will obviously affect the quality of protection while under attack. Although many organizations are failing with DDoS protection, I would say, that most of today's attacks can be successfully mitigated. But don't get me wrong, an effective mitigation requires good understanding on how the technology operates plus a deep knowledge of your network and the applications traversing it. No matter what vendors and service providers promise, DDoS protection technology is far from being "install & forget". In this presentation I will discuss common mitigation techniques, deployment methods and misconceptions of DDoS protection.

uk: вхід без авторизації


Your Web app, those hackers & you

uk: Комп'ютерні науки

description: Modern Web application frameworks offer a vast amount of ways to introduce security vulnerabilities. In this talk we'll have an overview of common and not so common patterns of vulnerabilities. The main focus will be Ruby on Rails applications, but also generic patterns which apply to other languages and frameworks will be elaborated. Instead of just showing off with 1337 bugs and exploits, mitigation strategies will also be provided.

uk: вхід без авторизації


uk: Комп'ютерні науки

description: Ha a fizikai rétegrol beszélünk, mindenki drótokra és optikai kapcsolatokra gondol, miközben a modern kommunikáció jelentos része vezeték nélkül zajlik. A rendelkezésre álló frekvenciaspektrum jobb kihasználáshoz az eszközök frekvenciaugratásos technikákat használnak, azaz mind a leadó-, mind a vevo-berendezés másodpercenként több ezerszer vált frekvenciát. A megfelelo kommunikáció biztosításához a leadót és a vevot szinkronban kell tartani. A kereskedelmi használatban ezt frekvenciaugratásos eloírások biztosítják. Ha a kommunikációt tovább akarjuk titkosítani, csak annyit kell tennünk, hogy nem szabványos eloírást használunk, így harmadik fél nem tudja veszteség nélkül összegyojteni az átvitt adatokat, ez a veszteség pedig megakadályozza a tartalom titkosítását megfejtését. A digitális jelfeldolgozás új eszközt biztosít minden átvitt karakterfüzér azonosítására és összegyujtésére.

uk: вхід без авторизації

name: Layer 1 encryption and decryption: Layer One challenge


uk: Комп'ютерні науки

description: Fear of cyber-attacks with catastrophic physical consequences easily capture public imagination. The appeal of hacking a physical process is dreaming about physical damage attacks lighting up the sky in a shower of goodness. Let's face it, after such elite hacking action nobody is going to let one present it at a public conference. As a poor substitute, this presentation will use a simulated plant for Vinyl Acetate production for demonstrating a complete attack, from start to end, directed at persistent economic damage to a production site while avoiding attribution of production loss to a cyber-event. Such an attack scenario could be useful to a manufacturer aiming at putting competitors out of business or as a strong argument in an extortion attack. Designing an attack scenario is a matter of art as much as economic consideration: the cost of an attack can quickly exceed damage worth. The talk will elaborate on multiple factors which constitute attack costs and how to optimize them.

uk: вхід без авторизації

name: Rocking the pocket book: hacking chemical plant for competition and extortion


uk: Комп'ютерні науки

description: There is an almost iunescapable conflict between software developers and security engineers. Multiple areas struggle from this conflict: one specifically being threat modeling that does not work because of the lack of cooperation between security engineers and software developers. With the existing methods, security engineers do not get a proper picture of the real risks and software developers get no feeling of what to improve. Gamified threat modeling approaches like Cornucopia and Elevation of Privilege are designed to provide the missing common ground and a process that encourages exchange. As with playing cards, in their turn everyone plays their hand and the group discusses the threat that is described on the played card. The presentation will go through an example application and show the difference between the classical approach to threat modeling and Cornucopia/EoP. The audience is going to learn about a new methodology and get hands- on experience on how to do threat modeling by playing cards.

uk: вхід без авторизації

name: I play Jack of Information Disclosure: How to do threat modeling via playing cards


uk: Комп'ютерні науки

description: Over the years, I have been visiting attended quite some a number of security conferences and got more and more frustrated. Bashing developers, blaming them for writing insecure software, not going to security conferences. It is easy to blame, but whats the point? During this talk I will show why the security community has failed to connect to the developers and, more importantly, how to do it right!

uk: вхід без авторизації

name: Secure software, start appreciating your developers!


uk: Комп'ютерні науки

description: The number of Internet connections still increases. More and more providers are not able to assign one public IPv4 address to every client because the IPv4 space has been consumed. In such cases, "Dual-Stack Lite" is a common solution. This protocol is specified in RFC6333 and it allows providers to share their limited IPv4 addresses with all the clients based on an IPv6 network. The presentation will explain the protocol "Dual-Stack Lite" from a security point of view. In the worst case, all IPv4 devices in a home network can be reached directly from the Internet. This could be demonstrated in the past! The presentation will give important information to all those providing services only with IPv4, "Dual-Stack Lite" providers and all respective users.

uk: вхід без авторизації

name: Attacking all your IPv4 devices at home from the Internet via Dual-Stack Lite


uk: Комп'ютерні науки

description: Random numbers are very important in many fields of computer science, especially in cryptography. One of the most important usages of pseudorandom number generators (PRNG) are is key generation methods for cryptographic purposes. In this presentation a modification of the prime generation method of the OpenSSL library will be presented. The modified version of the library passes every well-known statistical tests (e.g NIST test, DIEHARD test), however while an adversary is still able to reconstruct the prime numbers (P,Q) from the public key. The method can be used for malicious purposes as a sophisticated backdoor. The presented research is based on the theory of kleptography and a recently published research paper.

uk: вхід без авторизації

name: Modification of the prime generation method of the OpenSSL library


uk: Комп'ютерні науки

description: The recent research in malware analysis suggests state actors allegedly use cyber espionage campaigns against GSM networks. Analysis of state-sponsored malwares such as Flame, Duqu, Uruborus and the Regin revealed that these were designed to sustain long-term intelligence-gathering operations by remaining under the radar. Antivirus companies made a great job in revealing technical details of the attack campaigns, however, they have almost exclusively focused on the executables or the memory dump of the infected systems - the research hasn't been simulated in a real environment. In this talk, we are going to break down the Regin framework stages from a reverse engineering perspective - kernel driver infection scheme, virtual file system and its encryption scheme, kernel mode manager- while analyzing its behaviors on a GSM network and making technical comparison of its counterparts - such as TDL4, Uruborus, Duqu2.

uk: вхід без авторизації

name: Why Nation-State Malwares Target Telco Networks: Dissection Technical Capabilities of Regin and Its Counterparts


uk: Комп'ютерні науки

description: PowerShell has gained considerable attention over the past few years in response to increased task automation in the Windows environment. Regardless of PowerShells capability to address administrators day-to-day operations, it is widely used for penetration testing and even attacking purposes. Specifically designed post-exploitation attacks and payloads by utilizing PowerShell are difficult to prevent on the condition that as the attackers gain privilege accounts. All protections ranging from the control on Execution Policy, Constrained PowerShell to customize the remote endpoints, AppLocker to allow or deny applications from running, to the control of objects with PSLockdownPolicy in PowerShell V3 could be, in some ways, tampered or bypassed to run malicious PowerShell script. Security monitoring by enabling subtle details in PowerShell Event Logs is able to collect useful information when PowerShell is called, but attackers could find a way to alter or disable those legitimately. So far no major study exists to corroborate such a conclusion on about the defense against PowerShell attacks in this condition. Until such a study is undertaken or a new feature is introduced, we have built a PowerShade platform, a prototype in python script to observe, capture, and neutralise PowerShell post-exploitation attacks.

uk: вхід без авторизації

name: Defend PowerShell Attacks When All Else Fails


uk: Комп'ютерні науки

description: The network patterns of Targeted Attacks are very different from usual malware because of the different goals of the attackers. Therefore, it is difficult to detect targeted attacks looking for DNS anomalies, DGA traffic or HTTP patterns. However, our analysis of targeted attacks reveals novel patterns in their network communication. These patterns were incorporated into our Stratosphere IPS in order to model, identify and detect the traffic of targeted attacks. With this knowledge it is possible to alert attacks in the network within a short time, independently of the malware used. The Stratosphere project analyzes the inherent patterns of malware actions in the network using Machine Learning. It uses Markov Chain's algorithms to find patterns that are independent of static features. These patterns are used to build behavioral models of malware actions that are later used to detect similar traffic in the network. The tool and datasets are freely published.

uk: вхід без авторизації

name: The Network Behavior of Targeted Attacks: Models for Malware Identification and Detection


Shall we play a game?

uk: Комп'ютерні науки

description: Everybody plays games, and a bunch of us plays computer games. Despite this, very few of usconsider them as interesting targets. Granted, you won't likely be able to hack into a corporate network via games, but you can target the people running the company via their games. You should also consider that a game could grant Not So Admirable people access to your network - the network that all your phones, your cameras, and your smart house components are part of. Hackers tend to ignore the low hanging fruits in favor of beautiful exploits, but we really shouldn't. This is why I have decided to take a look around and see what's already there in the games that allows access to the gamers' network. Thus this research about how game scripting engines can be abused started. I'll show in this talk that using custom game content could easily lead to code execution on our PCs. My targets are popular games and I'll show a wide range of script abuse from the most simple to the very technical ones.

uk: вхід без авторизації


uk: Комп'ютерні науки

description: Mivel a mai zárak legjobbikáról beszélünk, érdemes vizsgálni, hogy a tárcsás zárakkal szerelt lakatok, kerékpár- és motorlakatok, cilinderzárak mind-mind a legmagasabb biztonsági kategóriába tartoznak, és nem utolsósorban a legdrágább zárószerkezeteknek számítanak. Megfelelő speciális szerszámmal és technikával, valamint nem kevés gyakorlással azonban ezek a zárak tervezhető időtartamon belül nyithatók, és a módszer megfelelő tematika mellett elsajátítható. A nyitóeszközök bemutatása mellett belepillantást engedek a módszerbe a tárcsás zárak kategóriáinak bemutatásán keresztül.

uk: вхід без авторизації

name: Introducing disc lock opening tools and methods


uk: Комп'ютерні науки

description: Manual processing of malware samples became impossible years ago. Sandboxes are used to automate the analysis of malware samples to gather information about the dynamic behaviour of the malware, both at AV companies and at enterprises. During my research I invented new approaches to detect these sandboxes. I developed a tool, which can collect a lot of interesting information from these sandboxes to create statistics how the current technologies work. I will demonstrate tricks to detect sandboxes. Some sandboxes are not interacting with the Internet in order to block data extraction, but with some DNS-fu the information can be extracted from these appliances as well. If you already have or plan to buy a magic malware analysis/detection sandbox, this is a must -see presentation for you. The sandbox detection techniques used in APTs like BlackEnergy or DOUBLEFANTASY can be considered old, outdated and lacking in creativeness compared to these new techniques.

uk: вхід без авторизації

name: Sandbox detection for the masses: leak, abuse, test


uk: Комп'ютерні науки

description: Memory corruption vulnerabilities are ubiquitous and unavoidable issues of our complex applications. There are many exploitation and exploit mitigation techniques offor them as well as bypass methods of for the used or proposed defenses. For instance beyond in addition to the nowadays classic defenses of Data Execution Prevention (DEP) and Address Space Layout Randomization (ASLR), there are newer more recent proposals like Control Flow Integrity (CFI) and fine-grained ASLR, even if these solutions are not frequently used in practice today mainly for performance and compatibility reasons. The aim of this talk is to provide an overview of the main achievements of the state -of -the -art academic research in this field, and also to demonstrate and discuss some concrete uses of evasion techniques for bypassing runtime mitigations, like the Enhanced Mitigation Experience Toolkit (EMET) of Microsoft.

uk: вхід без авторизації

name: Memory corruption vulnerabilities, runtime mitigations and their bypasses


Semi-automated mapping of iOS binaries

uk: Комп'ютерні науки

description: Black-box iOS application pentesting is a growing and hot topic. For most pentests, the most pain and effort is are consumed by the initial phases of the work, i.ei.e. basic mapping of the application features and where the individual features are implemented within the binary. We describe a MobileSubstrate based, semi-automatic approach for mapping security related features, such as encryption, jailbreak detection, keychain usage.

uk: вхід без авторизації


uk: Комп'ютерні науки

description: A kézgeometria azonosítás egy széles körben elterjedt és használható technológia, amely bizonyos esetekben hatékonyan képes helyettesíteni a környezeti körülményekkel szemben kevésbé ellenálló társait, ugyanakkor kevesen tudják csak azt, hogy valójában hogyan muködik. Élo bemutatónk keretében megvizsgáljuk a technológia elonyeit, hátrányait, felfedjük sebezhetoségeit, és olyan támadásokat hajtunk végre, amelyek túlmutatnak magán a technológián.

uk: вхід без авторизації

name: Otti Csaba: Security in our hands (?): Problems of a biometric identification technology


Hacking cars in the style of Stuxnet

uk: Комп'ютерні науки

description: We believe that the most important impact of Stuxnet in the long run is that it provides a blueprint for carrying out similar attacks in different embedded computing environments. To demonstrate this, we started experimenting with attacking cars in the same style as Stuxnet attacked uranium centrifuges. Our experiments show that it is relatively easy to perform dangerous modifications to the settings of different car electronic control units. by sSimply infecting the mechanic's PC or laptop that runs the diagnostic software used to manage those ECUs in the car, and replacing the DLL responsible for communications between the diagnostic software and the CAN bus with a malicious DLL, that we can implements man-in-the-middle type attacks (e.g., replay or modification of commands). As a proof-of-concept, we managed to forge a message that switches off the airbag of an Audi TT without the mechanic noticing the misdeed.

uk: вхід без авторизації


uk: Математика, природничі науки

description: UCI Chem 128 Introduction to Chemical Biology (Winter 2013) Instructor: Gregory Weiss, Ph.D. Description: Introduction to the basic principles of chemical biology: structures and reactivity; chemical mechanisms of enzyme catalysis; chemistry of signaling, biosynthesis, and metabolic pathways. Index of Topics: 0:30:30 What is Chemical Biology? 0:42:01 The Central Dogma of Modern Biology 0:46:54 What is in a Gene? 0:53:31 What is a Genome? 1:00:33 Inside a Human Cell 1:09:58 Combinatorial Assembly Generates Diversity

uk: вхід без авторизації

name: Lecture 01. Introduction/What is Chemical Biology?

University of California Irvine (UCI)

addressCountry: US

addressLocality: Irvine

addressRegion: California


uk: Математика, природничі науки

description: UCI Chem 128 Introduction to Chemical Biology (Winter 2013) Instructor: Gregory Weiss, Ph.D. Description: Introduction to the basic principles of chemical biology: structures and reactivity; chemical mechanisms of enzyme catalysis; chemistry of signaling, biosynthesis, and metabolic pathways. Index of Topics: 0:03:11 Our Story Thus Far: Principles to Organize Biology 0:18:39 Modular Architecture Allows Combinatorial Synthesis 0:30:40 Common Tools in Chemical Biology 0:47:04 Fluorophores Allow Visualization of Molecules Inside the Cell 0:52:24 Assays to Detect Molecules in Solution and Cells 0:58:41 Viruses for Gene Delivery 1:02:18 Phage-Displayed Protein Libraries 1:04:55 Vast Libraries of DNA and RNA 1:07:09 Small Molecules Provide Control over Cell Processes 1:10:26 MOdel Organisms for Biology and Chemistry 1:13:41 Bacteria Used to Define DNA as Responsible for Transferring Heredity 1:15:32 Fruit Fly (Drosophilia)

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name: Lecture 02. Common Tools in Chemical Biology.


uk: Математика, природничі науки

description: UCI Chem 128 Introduction to Chemical Biology (Winter 2013) Instructor: Gregory Weiss, Ph.D. Description: Introduction to the basic principles of chemical biology: structures and reactivity; chemical mechanisms of enzyme catalysis; chemistry of signaling, biosynthesis, and metabolic pathways. Index of Topics: 0:07:01 What is Life? 0:09:07 Arrows Depict the Overlap of Molecular Orbitals 0:19:57 The Three Components of Orbital Overlap 0:24:27 Charge-Charge or Coulombic Effects 0:26:31 Molecular Orbital Theory Explains the Otherwise Unexplained 0:28:05 Combining Atomic Orbitals 0:39:56 Highest Occupied Molecular Orbital 0:41:57 Lowest Unoccupied Molecular Orbitals (LUMOs) 0:44:08 Anatomy of an Arrow 0:46:38 3 Rules for Mechanistic Arrow-Pushing 1:01:27 H is Always Attached to Something 1:04:48 Hydrogen Bonds 1:08:58 Proton Transfers

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name: Lecture 03. Reactivity and Arrow Pushing.


uk: Математика, природничі науки

description: UCI Chem 128 Introduction to Chemical Biology (Winter 2013) Instructor: Gregory Weiss, Ph.D. Description: Introduction to the basic principles of chemical biology: structures and reactivity; chemical mechanisms of enzyme catalysis; chemistry of signaling, biosynthesis, and metabolic pathways. Index of Topics: 0:28:06 MO Theory 0:32:32 Do Not Use Curved Arrows for Hydrogen Bonds 0:34:00 The Molecules of Life on Earth 0:37:40 Chemistry of CN 0:50:27 Formation of DAMN 0:53:32 Prebiotic Synthesis 1:06:29 Oligomers of Nucleotide Subunits 1:08:00 The RNA World 1:09:19 Synthesis of Amino Acids 1:12:35 Non-Covalent Interactions Dominate Biology 1:16:35 Charge-Charge Interactions

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name: Lecture 04. Combinatorial Chemistry and Biology.


uk: Математика, природничі науки

description: UCI Chem 128 Introduction to Chemical Biology (Winter 2013) Instructor: Gregory Weiss, Ph.D. Description: Introduction to the basic principles of chemical biology: structures and reactivity; chemical mechanisms of enzyme catalysis; chemistry of signaling, biosynthesis, and metabolic pathways. Index of Topics: 0:10:56 DNA 0:11:11 The Lennard-Jones Potential 0:14:28 Rouges Gallery of Non-Covalent Interactions 0:21:44 Comparing Energetics 0:25:06 All Biology Involves Water 0:28:36 Receptor-Ligand Interactions 0:33:01 Biooligomers on Earth: Modularity 0:34:35 Form Follows Function to Biology 0:39:51 Non-Covalent Bonding Summary 0:43:31 Structure of DNA: Double Helix 0:49:02 The DNA Bases 0:52:40 The Missing 2-OH of DNA Confers Stability 0:59:25 The DNA Bases are Subject to Modification 1:01:39 Watson-Crick Base Pairs form U-Shape 1:02:35 Molecular Recognition 1:14:13 DNA Intercalation: Untwisting of DNA

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name: Lecture 05. Non-Covalent Interactions, DNA.


uk: Математика, природничі науки

description: UCI Chem 128 Introduction to Chemical Biology (Winter 2013) Instructor: Gregory Weiss, Ph.D. Description: Introduction to the basic principles of chemical biology: structures and reactivity; chemical mechanisms of enzyme catalysis; chemistry of signaling, biosynthesis, and metabolic pathways. Index of Topics: 0:01:53 Examples of DNA Intercalators 0:04:21 How to Measure and Calculate the Strength of DNA Hyrbidization 0:09:20 Short Stretches of DNA & RNA Can Also Fold 0:10:31 DNA is Wound into Supercoils 0:15:53 Bacterial DNA is Stored in Plasmids 0:18:29 Antibiotics as Selection Markers 0:22:24 Eukaryotic DNA is Wrapped Around Nucleosomes 0:27:24 Trapoxin as a Highly Specific HDCA-1 Inhibitor 0:28:49 Biological Polynucleotide Synthesis 0:32:07 DNA Polymerases 0:46:57 RT Inhibitors 0:52:15 A Brief HIstory of Chemical DNA Synthesis 0:57:01 The DNA Microarray 1:02:09 FK506 Fingerprinting 1:03:58 Analysis of DNA by Electrophoresis 1:07:55 DNA Sequencing Uses DNA Synthesis 1:10:37 DNA Biotechnology

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name: Lecture 06. DNA Reactivity with Small Molecules.


Lecture 07. DNA, RNA, and Cancer.

uk: Математика, природничі науки

description: UCI Chem 128 Introduction to Chemical Biology (Winter 2013) Instructor: Gregory Weiss, Ph.D. Description: Introduction to the basic principles of chemical biology: structures and reactivity; chemical mechanisms of enzyme catalysis; chemistry of signaling, biosynthesis, and metabolic pathways. Index of Topics: 0:06:40 DNA Chemistry 0:09:48 Cutting and Pasting DNA 0:18:42 Protein Modification by PCR 0:23:15 UV from Sunlight Cross-Links Thymines 0:25:09 E. Coli Photolyase 0:26:36 Protecting Your Cells By Sun Screen 0:33:24 Cells Must Advance or Die 0:34:57 DNA as a Big Nucleophile 0:39:51 N-nitrosoamines = Ptent DNA Alkylating Agents 0:45:00 Known Carcinogens 0:47:44 Paradox: Cause and Cure? 0:50:42 Excision Repair in Humans 0:57:25 Hundreds of Mutations Required to Cause Cancer 1:03:57 Sir Percival Pott 1:05:19 Testicular Cancer 1:06:56 P450 Substrates as Potent DNA Alkylators 1:08:24 Benzopyrene: Pro-Epoxide DNA Alkylators 1:10:18 Toxins from Molds Growing on Grains 1:11:36 Nitrogen and Sulfur Mustards 1:13:35 The Re-Evaluation of RNA's Importance

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Lecture 08. RNA.: Part 1

uk: Математика, природничі науки

description: UCI Chem 128 Introduction to Chemical Biology (Winter 2013) Instructor: Gregory Weiss, Ph.D. Description: Introduction to the basic principles of chemical biology: structures and reactivity; chemical mechanisms of enzyme catalysis; chemistry of signaling, biosynthesis, and metabolic pathways. Index of Topics: Announcements 0:00:21- Announcements 0:01:24- Midterm 1 Results 0:03:24- Office Hours 0:04:28- Getting Strong Letters of Recommendation 0:15:10- Getting Strong Letters of Recommendation from Prof. Weiss Lecture 0:18:00 DNA Chemistry and Cancer 0:21:00 RNA: Soldier, Sailor, Tinker, Spy 0:22:40 Differences Between RNA and DNA 0:23:25 RNA Hydrolysis 0:27:27 Rnase Mechanism of Action 0:30:38 How to Shut Down a Very Effective Enzyme 0:33:25 The 5-Methyl Group of Thymine Provides a Chemical Code for DNA 0:36:35 RNA Bases can Be Modified 0:38:14 RNA Adopts Globular Structures 0:40:14 Systemizing Structure in RNA 0:46:20 RNA Polymerase 0:50:40 DNA Primase 0:52:27 Transcription in Action 1:15:32 The Yeast Two-Hybrid System Allows in Cell Testing for Binding 1:17:53 Comparing Bacterial and Eukaryotic mRNA Factors

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Lecture 09. RNA.: Part 2

uk: Математика, природничі науки

description: UCI Chem 128 Introduction to Chemical Biology (Winter 2013) Description: Introduction to the basic principles of chemical biology: structures and reactivity; chemical mechanisms of enzyme catalysis; chemistry of signaling, biosynthesis, and metabolic pathways. Index of Topics: 0:21:06 RNA and Transcription Factors 0:26:04 Comparing Bacterial and Eukaryotic mRNA Processing 0:29:08 CTP Cap Methylation 0:30:30 Using PolyA Tails to Isolate mRNA 0:34:29 Eukaryotic Splicing of mRNAs 0:37:38 RNA Degredation Plays a Major Role 0:40:40 Therapeutic Anti-Sense 0:42:32 Modifying the Oligo Backbone 0:44:20 RNA Interference Used Extensively in the Lab 0:47:57 Where Peptide Synthesis Starts 0:58:26 The Genetic Code: The Language of the Codons 1:00:33 Decoding the DNA to Protein Sequence 1:01:43 How to Load the Amino Acyl tRNA 1:06:38 Post-Translational Modification of the N-Terminus 1:07:25 Inhibiting Methionine Aminopeptidase 1:09:59 Binding to mRNA Provides Further Regulation of Translation 1:10:59 Incorporating Unnatrual Amino Acids 1:12:38 Expanding the Protein Palette 1:13:48 mRNA Aptamer Libraries 1:18:18 Puromycin Allows Covalent Linkage to the Growing Peptide During Translation

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uk: Математика, природничі науки

description: UCI Chem 128 Introduction to Chemical Biology (Winter 2013) Instructor: Gregory Weiss, Ph.D. Description: Introduction to the basic principles of chemical biology: structures and reactivity; chemical mechanisms of enzyme catalysis; chemistry of signaling, biosynthesis, and metabolic pathways. Index of Topics: 0:19:40 RNA 0:22:14 Proteins: of Primary Importance 0:28:38 Peptides and Protein are Directional 0:32:39 Useful to Know: pKa Values 0:35:14 Amino Acid Sidechains Dictate Protein Folding and Protein-Protein Interactions 0:42:05 Peptides Can Make Effective Drugs 0:49:29 Chemical Synthesis of Peptides and Proteins 0:59:51 Protein Splicing to Remove Inteins 1:04:31 Protein Structure: The Sum of Lots of Little Forces 1:15:10 a-Helices Form a Dipole

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name: Lecture 10. Proteins and Amino Acid Conformations.


uk: Математика, природничі науки

description: UCI Chem 128 Introduction to Chemical Biology (Winter 2013) Instructor: Gregory Weiss, Ph.D. Description: Introduction to the basic principles of chemical biology: structures and reactivity; chemical mechanisms of enzyme catalysis; chemistry of signaling, biosynthesis, and metabolic pathways. Index of Topics: 0:28:13 Amino Acids and Proteins 0:30:53 a-Helices Form a Dipole 0:31:09 B-Sheets Come in Two Flavors 0:34:39 Secondary Structure - Backbone, Conformations 0:44:40 Conformational Analysis for the Cognoscente (White Board) 0:58:07 Amino Acids Examples (White Board) 1:05:01 Conformations to Watch For 1:09:38 Allylic Strain Dominates the Protein Backbone 1:13:10 Disulfide Bonds in Proteins 1:15:34 Protein Structure 1:17:50 All a-Helical Proteins

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name: Lecture 11. Proteins and Amino Acid Conformations, Part 2.


Lecture 12. Protein Functions.

uk: Математика, природничі науки

description: UCI Chem 128 Introduction to Chemical Biology (Winter 2013) Instructor: Gregory Weiss, Ph.D. Description: Introduction to the basic principles of chemical biology: structures and reactivity; chemical mechanisms of enzyme catalysis; chemistry of signaling, biosynthesis, and metabolic pathways. Index of Topics: 0:15:32 Protein Conformation 0:18:28 All B-Sheet Proteins 0:27:13 WD Proteins Scaffold Together Large Assemblies 0:28:12 Collagen is Formed from a 3-Stranded Coil 0:29:21 All a-Helical Proteins 0:31:40 a/B Proteins 0:33:21 Peptide Binding Domains 0:39:05 Higher Order Assemblies of Proteins 0:41:23 Equilibrium Constants to Describe the Strengths of Non-Covalent Interactions 0:46:54 Following the SPeeds of Reactions 0:49:25 Rates of Non-Covalent Interactions 0:50:16 Typical Rates of Binding 0:53:09 Measuring Biological Potency Through Dose Responsive Curve 0:56:26 Measuring Biological Reponse by ELISA 0:59:36 Steptavidin-Biotin Offers Near Covalent Binding Affinity 1:00:39 Biotinylated Reagents Used Extensively in Chemical Biology 1:03:47 Enxymatic Catalysts = Catalytic Receptors

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uk: Математика, природничі науки

description: UCI Chem 128 Introduction to Chemical Biology (Winter 2013) Instructor: Gregory Weiss, Ph.D. Description: Introduction to the basic principles of chemical biology: structures and reactivity; chemical mechanisms of enzyme catalysis; chemistry of signaling, biosynthesis, and metabolic pathways. Index of Topics: 0:00:41 Enzymes 0:03:20 Repeat Proteins 0:05:16 Equilibrium Constants 0:06:25 Enzymatic Catalysts = Catalytic Receptors 0:07:03 Michaelis Constant for Measuring Catalysis 0:15:30 The Perfect Enzyme 0:21:29 Kinases: Phosphorylation of Ser/Thr or Tyr 0:34:19 Why Study Single Molecules? 0:37:44 How to Follow Enzymatic Catalysis with Single Walled Carbon Nanotubes 0:41:34 Single Biomolecule Bioelectronics 0:44:24 Before and After Enzyme Attachment 0:46:29 Watching cAMP - Dependent Protein Kinase A 0:49:18 Further Generalization: Protein A Kinase 0:55:55 Lysozyme as a Model Enzyme for Glycosdie Hydrolysis 1:08:22 Proteases Cleave Amide Bonds 1:12:37 Regulation of Proteases Through Pro-Enzymes

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name: Lecture 13. Protein Function and Enzymes.


Lecture 14. Glycobiology.

uk: Математика, природничі науки

description: UCI Chem 128 Introduction to Chemical Biology (Winter 2013) Instructor: Gregory Weiss, Ph.D. Description: Introduction to the basic principles of chemical biology: structures and reactivity; chemical mechanisms of enzyme catalysis; chemistry of signaling, biosynthesis, and metabolic pathways. Index of Topics: 0:02:04 Enzyme Functions 0:06:10 Serine Based Proteases 0:10:44 Protein Based Inhibition of Proteases 0:13:10 Covalent or Mechanism-Based Protease Inhibitors 0:15:02 Inhibition of Serine Esterases 0:17:07 Enzymes Use Co-Factors (Vitamins) 0:21:31 The Origins of Stereospecificity in Alcohol Dehydrogenase 0:24:09 Pyridozal Phosphate (Vitamin 86) 0:27:29 PLP - Catalyzed Transamination 0:29:29 Protein Engineering 0:36:16 Most Mutations Make the Protein Less Functional 0:38:17 Carbohydrates 0:44:30 Hemiacetal Reactivity and Formation 0:46:33 Glucopyranose is the Most Noteable Ring Configuration 0:47:51 Oligosaccharides of the TB Coat 0:51:29 Oxocarbenium Ions as a Key Intermediate in Hydrolysis of Glycosidic Bonds 0:53:19 Mechanisms of Enzymatic Hydrolysis 0:54:58 Commonalitites in Glycosylhydrolase Mechanisms 0:56:03 Neuraminidase: Key Enzyme in Influenza Release from Surface to Cell 1:01:06 Oligosaccharides 1:04:22 Polysaccharides 1:08:04 Hyaluronan: Oligosaccharides in Joints 1:09:57 Glycosylated Proteins

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Lecture 15. Glycobiology & Polyketides.

uk: Математика, природничі науки

description: UCI Chem 128 Introduction to Chemical Biology (Winter 2013) Instructor: Gregory Weiss, Ph.D. Description: Introduction to the basic principles of chemical biology: structures and reactivity; chemical mechanisms of enzyme catalysis; chemistry of signaling, biosynthesis, and metabolic pathways. Index of Topics: 0:00:19 Carbohydrates 0:03:15 Glycosylated Proteins 0:07:25 Extending Oligosaccharides one Monomer at a Time 0:08:26 More Knee Join Oligosacchardies 0:10:25 Snot and Mucus: Anionic Polysaccharides 0:13:21 N-Linked Glycosides: Added as Complex Oligosaccharides 0:22:56 What is the Function of Glycosylation? 0:25:37 Cell Culture Production of Proteins 0:27:54 Glucoronidation Used to Designate Small Molecules for Excretion 0:29:49 Glucose Homeostasis 0:31:39 Non-Enzymatic Glycosylation 0:35:29 Sweetners: Tase Good for the Calories 0:41:00 Terpenes and Polyketides 0:45:09 Nature Prefers Thioesters for the Claisen 0:48:06 Rapid Exchange of Thioesters 0:49:28 Fatty Acid Synthesis by Polyketide

uk: вхід без авторизації


uk: Математика, природничі науки

description: UCI Chem 128 Introduction to Chemical Biology (Winter 2013) Instructor: Gregory Weiss, Ph.D. Description: Introduction to the basic principles of chemical biology: structures and reactivity; chemical mechanisms of enzyme catalysis; chemistry of signaling, biosynthesis, and metabolic pathways. Index of Topics: 0:00:33 Polysaccharides 0:08:45 Fatty Acid Synthase: Paradigm for a Polyketide Synthesis Machine 0:10:58 Plasma Membrane = Lipid Barrier 0:13:44 Hydrolysis of LIpids in Cell Signaling 0:15:26 Prostaglandin Signaling to Coordinate Cell Response 0:16:15 Leukotrienes Mediate Inflammatory Response 0:19:09 Shutting Down the Prostaglandin Pathway at its Start 0:23:39 Converting Fats into Soaps 0:25:54 Diversifying Products from Polyketide Synthases 0:39:54 Fatty Acid Synthase (FAS) Has a Circular Assembly Line 0:44:18 Terpenes: Built from Isoprene (5C) Units 0:56:18 Inhibition of Cholesterol Synthesis 0:57:48 Cyclization of Straight-Chain Precursors by Enzymes

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name: Lecture 16. Glycobiology & Polyketides, Part 2.


uk: Математика, природничі науки

description: UCI Chem 128 Introduction to Chemical Biology (Winter 2013) Instructor: Gregory Weiss, Ph.D. Description: Introduction to the basic principles of chemical biology: structures and reactivity; chemical mechanisms of enzyme catalysis; chemistry of signaling, biosynthesis, and metabolic pathways. Index of Topics: 0:06:34 Terpene 0:08:55 Biogenic Head-To-Tail Synthesis of Terpenes 0:14:41 Protein Prenylation: Localizes Protein to the Membrane 0:18:03 Bisphosphonate: Anti-Osteoporosis Drugs 0:20:27 The Rich Structural Diversity of Terpenes 0:34:51 Cyclization of Isoprene Oligomers 0:39:51 Control Over the Central Dogma 0:42:22 Ancient Small Molecules with Bioactivity 0:46:08 Arrows in Chemistry and Biology 0:49:11 Cell Signaling Scenarios 0:54:50 The 7 Signaling Pathways 0:56:16 Genetics to Dissect Complex Biology 1:01:06 Small Molecules Offer Control Over Otherwise Unavailable Phenotypes 1:07:48 Nuclear Hormone Receptors 1:18:14 In Vivo Biosynthesis of Calcitriol 1:19:23 Restoring Biological Function of a Mutant Vitamin D Receptor

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name: Lecture 17. Terpenes and Cell Signaling, Part 1.


uk: Математика, природничі науки

description: UCI Chem 128 Introduction to Chemical Biology (Winter 2013) Instructor: Gregory Weiss, Ph.D. Description: Introduction to the basic principles of chemical biology: structures and reactivity; chemical mechanisms of enzyme catalysis; chemistry of signaling, biosynthesis, and metabolic pathways. Index of Topics: 0:03:13 Cell Signaling 0:07:19 The 7 Signaling Pathways 0:09:41 Control Over Cell Differentiation Through Cytokines 0:12:04 Erythroproietin Signals Through the Jak-STAT Pathway 0:16:03 Chemical Control Over Cell Signaling Through Dimerization 0:22:25 Modification of Proteins for Better Properties 0:25:57 Growth Factor Signaling Through Cell surface Kinases 0:33:19 Sequential Phosphorylation 0:34:22 MAP Kinaase signaling 0:36:00 Peptide Binding Domains 0:38:32 Small Molecules in Cell Signaling 0:42:48 G Protein-Coupled Receptors 0:58:15 Vision Through Cis-Trans Olefin Isomerization 1:01:35 Ion Channel Signaling 1:03:31 Trimeric Death Receptors 1:04:38 Signaling by Diffusible Gas MOlecules 1:06:58 NO Causes Relaxation of Smooth Muscle in Blood Vessles 1:08:38 Chemical Biology: Review

uk: вхід без авторизації

name: Lecture 18. Terpenes and Cell Signaling, Part 2


uk: Математика, природничі науки

description: UCI Chem 131A Quantum Principles (Winter 2014) Instructor: A.J. Shaka, Ph.D Description: This course provides an introduction to quantum mechanics and principles of quantum chemistry with applications to nuclear motions and the electronic structure of the hydrogen atom. It also examines the Schrödinger equation and study how it describes the behavior of very light particles, the quantum description of rotating and vibrating molecules is compared to the classical description, and the quantum description of the electronic structure of atoms is studied. Index of Topics: 0:05:31 Light 0:12:05 Quantization 0:19:10 The Photoelectric Effect 0:28:59 Photon Momentum

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name: Lecture 01. General Course Information and Introduction to Quantum Mechanics


uk: Математика, природничі науки

description: UCI Chem 131A Quantum Principles (Winter 2014) Instructor: A.J. Shaka, Ph.D Description: This course provides an introduction to quantum mechanics and principles of quantum chemistry with applications to nuclear motions and the electronic structure of the hydrogen atom. It also examines the Schrödinger equation and study how it describes the behavior of very light particles, the quantum description of rotating and vibrating molecules is compared to the classical description, and the quantum description of the electronic structure of atoms is studied. Index of Topics: 0:00:20 Louis de Broglie 0:02:32 Where is the Particle? 0:14:49 Waves 0:19:20 Practice Problem: de Broglie Wavelength 0:21:16 Wavefunctions 0:29:16 The Postulates of QM

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name: Lecture 02. Particles, Waves, the Uncertainty Principle and Postulates of QM


uk: Математика, природничі науки

description: UCI Chem 131A Quantum Principles (Winter 2014) Instructor: A.J. Shaka, Ph.D Description: This course provides an introduction to quantum mechanics and principles of quantum chemistry with applications to nuclear motions and the electronic structure of the hydrogen atom. It also examines the Schrödinger equation and study how it describes the behavior of very light particles, the quantum description of rotating and vibrating molecules is compared to the classical description, and the quantum description of the electronic structure of atoms is studied. Index of Topics: 0:00:19 The Postulates of QM 0:05:30 The Momentum Operator 0:08:17 Basic Functions 0:13:44 Orthogonality 0:28:50 Uncertainty 0:30:51 Complementarity 0:35:00 Classical Atoms 0:39:12 Wavefunctions and Orbitals 0:43:37 Confined Systems 0:45:49 The Position Operator

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name: Lecture 03. More Postulates, Superposition, Operators and Measurement


uk: Математика, природничі науки

description: UCI Chem 131A Quantum Principles (Winter 2014) Instructor: A.J. Shaka, Ph.D This course provides an introduction to quantum mechanics and principles of quantum chemistry with applications to nuclear motions and the electronic structure of the hydrogen atom. It also examines the Schrödinger equation and study how it describes the behavior of very light particles, the quantum description of rotating and vibrating molecules is compared to the classical description, and the quantum description of the electronic structure of atoms is studied. Index of Topics: 0:00:20 Localized Wavfunctions 0:11:30 Fourier Series 0:13:21 Quantum cryptography 0:28:32 Time Evolution 0:47:22 A Free Particle

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name: Lecture 04. Complementarity, Quantum Encryption and the Schrödinger Equation


uk: Математика, природничі науки

description: UCI Chem 131A Quantum Principles (Winter 2014) Instructor: A.J. Shaka, Ph.D Description: This course provides an introduction to quantum mechanics and principles of quantum chemistry with applications to nuclear motions and the electronic structure of the hydrogen atom. It also examines the Schrödinger equation and study how it describes the behavior of very light particles, the quantum description of rotating and vibrating molecules is compared to the classical description, and the quantum description of the electronic structure of atoms is studied. Index of Topics: 0:00:20 The Box 0:04:29 The Wavefunction 0:19:22 Normalization 0:28:27 Interpretation 0:31:50 Expectation Values 0:45:59 Excited States 0:47:39 Wavefunction Plots

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name: Lecture 05. Model 1D Quantum Systems: The "Particle in a Box"


uk: Математика, природничі науки

description: UCI Chem 131A Quantum Principles (Winter 2014) Instructor: A.J. Shaka, Ph.D Description: This course provides an introduction to quantum mechanics and principles of quantum chemistry with applications to nuclear motions and the electronic structure of the hydrogen atom. It also examines the Schrödinger equation and study how it describes the behavior of very light particles, the quantum description of rotating and vibrating molecules is compared to the classical description, and the quantum description of the electronic structure of atoms is studied. Index of Topics: 0:00:42 Tunneling 0:29:42 Barrier Penetration 0:44:34 Interpretation

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name: Lecture 06. Quantum Mechanical Tunneling


uk: Математика, природничі науки

description: UCI Chem 131A Quantum Principles (Winter 2014) Instructor: A.J. Shaka, Ph.D Description: This course provides an introduction to quantum mechanics and principles of quantum chemistry with applications to nuclear motions and the electronic structure of the hydrogen atom. It also examines the Schrödinger equation and study how it describes the behavior of very light particles, the quantum description of rotating and vibrating molecules is compared to the classical description, and the quantum description of the electronic structure of atoms is studied. Index of Topics: 0:03:27 STM 0:19:19 Vibrations 0:46:33 Zero-Point Energy 0:49:19 Isotope Effects

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name: Lecture 07. Tunneling Microscopy and Vibrations


uk: Математика, природничі науки

description: UCI Chem 131A Quantum Principles (Winter 2014) Instructor: A.J. Shaka, Ph.D Description: This course provides an introduction to quantum mechanics and principles of quantum chemistry with applications to nuclear motions and the electronic structure of the hydrogen atom. It also examines the Schrödinger equation and study how it describes the behavior of very light particles, the quantum description of rotating and vibrating molecules is compared to the classical description, and the quantum description of the electronic structure of atoms is studied. Index of Topics: 0:01:23 Vibrational Energy Levels 0:19:35 Properties of Oscillators 0:26:43 Perturbation Theory 0:40:38 Introducing Lambda 0:42:42 Correcting the Energy 0:50:47 Vanishing Wavefunction

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name: Lecture 08. More on Vibrations and Approximation Techniques


uk: Математика, природничі науки

description: UCI Chem 131A Quantum Principles (Winter 2014) Instructor: A.J. Shaka, Ph.D Description: This course provides an introduction to quantum mechanics and principles of quantum chemistry with applications to nuclear motions and the electronic structure of the hydrogen atom. It also examines the Schrödinger equation and study how it describes the behavior of very light particles, the quantum description of rotating and vibrating molecules is compared to the classical description, and the quantum description of the electronic structure of atoms is studied. Index of Topics: 0:01:02 Odd, or Antisymmetric, Funcitons 0:05:57 The Morse Potential 0:18:05 The 6 - 12 Potential 0:27:28 Quantum Systems in 2D and 3D 0:28:41 Particles in a 2D Box 0:39:49 Quantum Dots 0:42:40 Degeneracy 0:44:40 Particle on a Ring

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name: Lecture 09. The Morse and "6-12" Potential and Quantization in Two Spatial Dimensions


uk: Математика, природничі науки

description: UCI Chem 131A Quantum Principles (Winter 2014) Instructor: A.J. Shaka, Ph.D Description: This course provides an introduction to quantum mechanics and principles of quantum chemistry with applications to nuclear motions and the electronic structure of the hydrogen atom. It also examines the Schrödinger equation and study how it describes the behavior of very light particles, the quantum description of rotating and vibrating molecules is compared to the classical description, and the quantum description of the electronic structure of atoms is studied. Index of Topics: 0:02:23 Particle on a Ring 0:16:49 Quantization 0:24:23 Preparation of Atoms 0:27:16 Spherical Polar Coordinates 0:31:18 Particle on a Sphere 0:33:03 The Legendrian 0:35:06 Spherical Polar Coordinates

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name: Lecture 10. Particles on Rings and Spheres... a Prelude to Atoms


uk: Математика, природничі науки

description: UCI Chem 131A Quantum Principles (Winter 2014) Instructor: A.J. Shaka, Ph.D Description: This course provides an introduction to quantum mechanics and principles of quantum chemistry with applications to nuclear motions and the electronic structure of the hydrogen atom. It also examines the Schrödinger equation and study how it describes the behavior of very light particles, the quantum description of rotating and vibrating molecules is compared to the classical description, and the quantum description of the electronic structure of atoms is studied. Index of Topics: 0:01:47 The Solution in Phi 0:03:10 The Solution in Theta 0:24:11 Energy Quantization 0:30:41 The Spherical Harmonics 0:33:26 Transitions 0:37:20 Spin 0:42:21 Stern-Gerlach Experiment 0:48:11 Electron Spin

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name: Lecture 11. Particle on a Sphere, Angular Momentum


uk: Математика, природничі науки

description: UCI Chem 131A Quantum Principles (Winter 2014) Instructor: A.J. Shaka, Ph.D Description: This course provides an introduction to quantum mechanics and principles of quantum chemistry with applications to nuclear motions and the electronic structure of the hydrogen atom. It also examines the Schrödinger equation and study how it describes the behavior of very light particles, the quantum description of rotating and vibrating molecules is compared to the classical description, and the quantum description of the electronic structure of atoms is studied. Index of Topics: 0:00:22 Spin 0:02:56 The Vector Model 0:11:06 The Commutator 0:22:25 Wavenumbers 0:29:45 Atomic Spectroscopy 0:34:34 The Hamiltonian Wavefunction 0:42:52 Separation of Variables

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name: Lecture 12. Spin, the Vector Model and Hydrogen Atoms


uk: Математика, природничі науки

description: UCI Chem 131A Quantum Principles (Winter 2014) Instructor: A.J. Shaka, Ph.D Description: This course provides an introduction to quantum mechanics and principles of quantum chemistry with applications to nuclear motions and the electronic structure of the hydrogen atom. It also examines the Schrödinger equation and study how it describes the behavior of very light particles, the quantum description of rotating and vibrating molecules is compared to the classical description, and the quantum description of the electronic structure of atoms is studied. Index of Topics: 0:00:57 The Radial Functions 0:07:12 The Rydberg Constant 0:13:39 The Bohr Radius 0:22:54 Notation 0:26:55 The Wavefunctions 0:31:59 Radial Nodes 0:36:44 Integrating Wavefunctions

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name: Lecture 13. Hydrogen Atoms: Radial Functions and Solutions of the Time-Independent Schröinger Equation


uk: Математика, природничі науки

description: UCI Chem 131A Quantum Principles (Winter 2014) Instructor: A.J. Shaka, Ph.D Description: This course provides an introduction to quantum mechanics and principles of quantum chemistry with applications to nuclear motions and the electronic structure of the hydrogen atom. It also examines the Schrödinger equation and study how it describes the behavior of very light particles, the quantum description of rotating and vibrating molecules is compared to the classical description, and the quantum description of the electronic structure of atoms is studied. Index of Topics: 0:00:41 Atomic Spectroscopy 0:09:08 Emission Spectra 0:21:41 Coupling Schemes 0:26:17 LS Coupling 0:29:42 Adding Angular Momenta 0:31:47 Vector Model for Coupling 0:38:40 Symmetry Considerations 0:41:48 LS Coupling 0:44:28 Term Symbols 0:50:32 Selection Rules

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name: Lecture 14. Atomic Spectroscopy: Selection Rules, Coupling, and Terms


uk: Математика, природничі науки

description: UCI Chem 131A Quantum Principles (Winter 2014) Instructor: A.J. Shaka, Ph.D Description: UCI Chem 131A covers principles of quantum chemistry with applications to nuclear motions and the electronic structure of the hydrogen atom. Index of Topics: 0:00:21 Quantum Numbers 0:02:40 Configurations 0:04:32 Term SYmbols 0:12:02 Holes and Electrons 0:13:47 Shapes of H Wavefunctions 0:17:39 Hydrogen Orbitals 0:18:41 Nodes 0:23:05 Spin-Orbit Coupling 0:24:09 Internal Magnetic Field 0:32:23 Other Alkali Metals 0:37:22 Cesium

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name: Lecture 15. Hydrogen Wavefunctions, Quantum Numbers, Term Symbols and Transitions


uk: Математика, природничі науки

description: UCI Chem 131A Quantum Principles (Winter 2014) Instructor: A.J. Shaka, Ph.D Description: This course provides an introduction to quantum mechanics and principles of quantum chemistry with applications to nuclear motions and the electronic structure of the hydrogen atom. It also examines the Schrödinger equation and study how it describes the behavior of very light particles, the quantum description of rotating and vibrating molecules is compared to the classical description, and the quantum description of the electronic structure of atoms is studied. Index of Topics: 0:00:51 Cesium 0:19:37 Another Look at Spin-Orbit Coupling 0:23:42 The Energy Shift 0:25:00 Two-Electron Atoms 0:37:06 The Pauli Principle 0:41:31 Spin and Space

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name: Lecture 16. Energy Level Diagrams, Spin-Orbit Coupling and the Pauli Principle


uk: Математика, природничі науки

description: UCI Chem 131A Quantum Principles (Winter 2014) Instructor: A.J. Shaka, Ph.D Description: This course provides an introduction to quantum mechanics and principles of quantum chemistry with applications to nuclear motions and the electronic structure of the hydrogen atom. It also examines the Schrödinger equation and study how it describes the behavior of very light particles, the quantum description of rotating and vibrating molecules is compared to the classical description, and the quantum description of the electronic structure of atoms is studied. Index of Topics: 0:00:55 Symmetry 0:02:23 Orthogonality 0:05:53 The Variational Principle 0:23:17 Atomic Units 0:34:25 Notation 0:37:29 Hydride Anion, Try #1

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name: Lecture 17. Approximation Methods: Variational Principle, Atomic Units, and Preparation for Two-Electron Systems


uk: Математика, природничі науки

description: UCI Chem 131A Quantum Principles (Winter 2014) Instructor: A.J. Shaka, Ph.D Description:This course provides an introduction to quantum mechanics and principles of quantum chemistry with applications to nuclear motions and the electronic structure of the hydrogen atom. It also examines the Schrödinger equation and study how it describes the behavior of very light particles, the quantum description of rotating and vibrating molecules is compared to the classical description, and the quantum description of the electronic structure of atoms is studied. Index of Topics: 0:00:53 Where We Left Off 0:02:06 Figuring r12 0:03:55 Law of Cosines 0:07:58 First-Order Correction 0:09:11 The Theta Integral 0:17:42 What's the Energy? 0:19:56 Stability of Hydride 0:24:37 Improving our Estimate 0:30:19 Evaluating the Energy 0:37:09 The Repulsion Term 0:43:59 The Helium Atom

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name: Lecture 18. The Hydride Ion (Continued): Two-Electron Systems


uk: Математика, природничі науки

description: UCI Chem 131A Quantum Principles (Winter 2014) Instructor: A.J. Shaka, Ph.D Description: This course provides an introduction to quantum mechanics and principles of quantum chemistry with applications to nuclear motions and the electronic structure of the hydrogen atom. It also examines the Schrödinger equation and study how it describes the behavior of very light particles, the quantum description of rotating and vibrating molecules is compared to the classical description, and the quantum description of the electronic structure of atoms is studied. Index of Topics: 0:00:38 Hydride Try #3 0:42:20 The Orbital Approximation 0:49:42 Hartree-Fock Approach

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name: Lecture 19. The Hydride Ion (Try #3!): The Orbital Philosophy


Lecture 26. Qualitative MO Theory

uk: Математика, природничі науки

description: UCI Chem 131A Quantum Principles (Winter 2014) Instructor: A.J. Shaka, Ph.D Description: This course provides an introduction to quantum mechanics and principles of quantum chemistry with applications to nuclear motions and the electronic structure of the hydrogen atom. It also examines the Schrödinger equation and study how it describes the behavior of very light particles, the quantum description of rotating and vibrating molecules is compared to the classical description, and the quantum description of the electronic structure of atoms is studied. Index of Topics: 0:00:29 MO Diagrams 0:03:36 Qualitative Guidelines 0:10:08 Homonuclear Diatomics 0:18:13 Bond Order Matches Intuition 0:29:42 Photoelectron Spectroscopy 0:35:53 Hybrid Orbitals 0:45:13 Making Bonds 0:48:24 Normalizing the Hybrids 0:50:09 Other Hyrbid Combinations

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uk: Математика, природничі науки

description: UCI Chem 131A Quantum Principles (Winter 2014) Instructor: A.J. Shaka, Ph.D Description: This course provides an introduction to quantum mechanics and principles of quantum chemistry with applications to nuclear motions and the electronic structure of the hydrogen atom. It also examines the Schrödinger equation and study how it describes the behavior of very light particles, the quantum description of rotating and vibrating molecules is compared to the classical description, and the quantum description of the electronic structure of atoms is studied. Index of Topics: 0:01:26 Hartree-Fock Approach 0:18:58 Correlation 0:26:27 Taking Spin Into Account 0:39:59 The Slater Determinant

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name: Lecture 20. Hartree-Fock Calculations, Spin, and Slater Determinants


uk: Математика, природничі науки

description: UCI Chem 131A Quantum Principles (Winter 2014) Instructor: A.J. Shaka, Ph.D Description: This course provides an introduction to quantum mechanics and principles of quantum chemistry with applications to nuclear motions and the electronic structure of the hydrogen atom. It also examines the Schrödinger equation and study how it describes the behavior of very light particles, the quantum description of rotating and vibrating molecules is compared to the classical description, and the quantum description of the electronic structure of atoms is studied. Index of Topics: 0:01:22 Closed Shell Atoms 0:05:12 The Energy of an Atom 0:08:47 Fock's Contribution 0:13:40 Optimzed Orbitals are Online 0:22:17 The Most Stable Atom 0:24:45 Hund's Rules 0:36:08 Predicting Stability 0:39:02 The Aufbau Principle 0:43:29 The Periodic Table 0:48:17 "Fission!" 0:50:09 Chemical Bonds

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name: Lecture 21. Bigger Atoms, Hund's Rules and the Aufbau Principle


uk: Математика, природничі науки

description: UCI Chem 131A Quantum Principles (Winter 2014) Instructor: A.J. Shaka, Ph.D Description: This course provides an introduction to quantum mechanics and principles of quantum chemistry with applications to nuclear motions and the electronic structure of the hydrogen atom. It also examines the Schrödinger equation and study how it describes the behavior of very light particles, the quantum description of rotating and vibrating molecules is compared to the classical description, and the quantum description of the electronic structure of atoms is studied. Index of Topics: 0:01:03 The Born-Oppenheimer Approximation 0:09:52 The Electronic Hamiltonian 0:11:06 Potential Surfaces 0:12:43 H2+ 0:22:43 Variational Approach for H2+ 0:41:04 Back to H2+

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name: Lecture 22. The Born-Oppenheimer Approximation and H2+


uk: Математика, природничі науки

description: UCI Chem 131A Quantum Principles (Winter 2014) Instructor: A.J. Shaka, Ph.D Description: This course provides an introduction to quantum mechanics and principles of quantum chemistry with applications to nuclear motions and the electronic structure of the hydrogen atom. It also examines the Schrödinger equation and study how it describes the behavior of very light particles, the quantum description of rotating and vibrating molecules is compared to the classical description, and the quantum description of the electronic structure of atoms is studied. Index of Topics: 0:01:06 LCAO-MO Approximation 0:03:22 Variational Energies 0:04:49 Matrix Elements 0:14:44 The Overlap Integral 0:25:41 The Hab Matrix Element 0:33:50 Is H2+ Stable?

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name: Lecture 23. LCAO-MO Approximation Applied to H2+


uk: Математика, природничі науки

description: UCI Chem 131A Quantum Principles (Winter 2014) Instructor: A.J. Shaka, Ph.D Description: This course provides an introduction to quantum mechanics and principles of quantum chemistry with applications to nuclear motions and the electronic structure of the hydrogen atom. It also examines the Schrödinger equation and study how it describes the behavior of very light particles, the quantum description of rotating and vibrating molecules is compared to the classical description, and the quantum description of the electronic structure of atoms is studied. Index of Topics: 0:01:11 Comparing the Results 0:04:04 H2+ Molecular Orbitals 0:05:32 The Coefficients 0:06:58 Normalization 0:09:00 The Orbitals are Different 0:14:22 The Virial Theorem 0:28:27 Checking our MO 0:37:01 Optimizing the Energy

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name: Lecture 24. A closer look at our Molecular Orbital: The Virial Theorem in Action


uk: Математика, природничі науки

description: UCI Chem 131A Quantum Principles (Winter 2014) Instructor: A.J. Shaka, Ph.D Description: This course provides an introduction to quantum mechanics and principles of quantum chemistry with applications to nuclear motions and the electronic structure of the hydrogen atom. It also examines the Schrödinger equation and study how it describes the behavior of very light particles, the quantum description of rotating and vibrating molecules is compared to the classical description, and the quantum description of the electronic structure of atoms is studied. Index of Topics: 0:03:28 Polarization 0:12:33 H2 0:15:50 Molecular Orbitals for H2 0:18:24 The Potential Energy Curve 0:20:19 The LCAO-MO Problem 0:31:50 The Valence Bond Approach 0:40:28 Wrapping up H2 0:45:53 Bond Order 0:47:28 Comparing H2+ Through He2

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name: Lecture 25. Optimizing H2+ Molecular Orbital, H2, and Configuration Interaction


uk: Математика, природничі науки

description: UCI Chem 131A Quantum Principles (Winter 2014) Instructor: A.J. Shaka, Ph.D Description: This course provides an introduction to quantum mechanics and principles of quantum chemistry with applications to nuclear motions and the electronic structure of the hydrogen atom. It also examines the Schrödinger equation and study how it describes the behavior of very light particles, the quantum description of rotating and vibrating molecules is compared to the classical description, and the quantum description of the electronic structure of atoms is studied. Index of Topics: 0:01:38 MO Picture for CH4 0:13:53 CH4 PES 0:18:52 Delocalization 0:21:45 Ethylene 0:34:02 Benzene 0:43:44 Aromaticity

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name: Lecture 27. CH4 Molecular Orbitals and Delocalized Bonding


uk: Математика, природничі науки

description: UCI Chem 131A Quantum Principles (Winter 2014) Instructor: A.J. Shaka, Ph.D Description: This course provides an introduction to quantum mechanics and principles of quantum chemistry with applications to nuclear motions and the electronic structure of the hydrogen atom. It also examines the Schrödinger equation and study how it describes the behavior of very light particles, the quantum description of rotating and vibrating molecules is compared to the classical description, and the quantum description of the electronic structure of atoms is studied. Index of Topics: 0:05:11 Matter and Radiation 0:07:33 Postulates of Quantum Mechanics 0:10:11 Measurements 0:12:11 Uncertainty 0:13:36 Time Evolution 0:15:37 Bound States 0:17:56 Tunneling 0:19:49 Unbound States 0:21:06 Approximate Solutions 0:24:28 Spectroscopy 0:26:19 Atomic Structure 0:33:05 Pauli Principle 0:34:11 Molecules 0:42:25 Chemical Bonds 0:43:17 Dissociation 0:45:04 Delocalized Systems

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name: Lecture 28. What We've Covered: Course Summary


Lecture 23. Partition Functions Pt. 1

uk: Математика, природничі науки

description: UCI Chem 131B Molecular Structure & Statistical Mechanics (Winter 2013) Lec 23. Molecular Structure & Statistical Mechanics -- Partition Functions -- Part 1. Instructor: Rachel Martin, Ph.D. Description: Principles of quantum mechanics with application to the elements of atomic structure and energy levels, diatomic molecular spectroscopy and structure determination, and chemical bonding in simple molecules. Index of Topics: 0:02:51 Rotational Spectrum of HCl 0:03:53 Molecular Partition Function 0:22:25 2-Level System Partition Function 0:31:12 Particle in a Box Partition Function 0:38:12 Harmonic Oscillator Partition Function

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uk: Математика, природничі науки

description: UCI Chem 131B Molecular Structure & Statistical Mechanics (Winter 2013) Lec 01. Molecular Structure & Statistical Mechanics -- Symmetry and Spectroscopy -- Part 1 Instructor: Rachel Martin, Ph.D. Description: Principles of quantum mechanics with application to the elements of atomic structure and energy levels, diatomic molecular spectroscopy and structure determination, and chemical bonding in simple molecules. Index of Topics: 0:11:28 Dipole Moment: E Field 0:15:14 Symmetry Elements 0:26:34 Chirality 0:27:46 Symmetry Operations: Translation 0:28:53 Group Theory: Introduction 0:34:12 Point Groups: Flow Chart

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name: Lecture 01. Symmetry and Spectroscopy Pt. 1.


uk: Математика, природничі науки

description: UCI Chem 131B Molecular Structure & Statistical Mechanics (Winter 2013) Lec 02. Molecular Structure & Statistical Mechanics -- Symmetry and Spectroscopy -- Part 2 Instructor: Rachel Martin, Ph.D. Description: Principles of quantum mechanics with application to the elements of atomic structure and energy levels, diatomic molecular spectroscopy and structure determination, and chemical bonding in simple molecules. Index of Topics: 0:03:12 Examples of Point Groups 0:13:55 Example: Low Symmetry 0:20:02 Matrix Representation 0:34:27 Matrix Multiplication 0:36:46 Transformation Matrices 0:41:42 Rotation Matrix 0:44:07 Matrix Representations of Operations 0:45:36 Inverse of a Matrix

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name: Lecture 02. Symmetry and Spectroscopy Pt 2.


Lecture 03. Transformation Matrices.

uk: Математика, природничі науки

description: UCI Chem 131B Molecular Structure & Statistical Mechanics (Winter 2013) Lec 03. Molecular Structure & Statistical Mechanics -- Transformation Matrices. Instructor: Rachel Martin, Ph.D. Description: Principles of quantum mechanics with application to the elements of atomic structure and energy levels, diatomic molecular spectroscopy and structure determination, and chemical bonding in simple molecules. Index of Topics: 0:00:10 Transformation Matrices 0:02:44 Group Theory 0:06:27 Everything is About the Basis 0:19:59 Characters: C2v 0:29:56 Reduction Formula 0:43:36 Bonding

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Lecture 04. Group Theory Applications.

uk: Математика, природничі науки

description: UCI Chem 131B Molecular Structure & Statistical Mechanics (Winter 2013) Lec 04. Molecular Structure & Statistical Mechanics -- Group Theory Applications. Instructor: Rachel Martin, Ph.D. Description: Principles of quantum mechanics with application to the elements of atomic structure and energy levels, diatomic molecular spectroscopy and structure determination, and chemical bonding in simple molecules. Index of Topics: 0:00:07 Bonding 0:15:38 Which Orbitals Form the Sigma Bond? 0:20:44 Which Orbitals Can Form Pi Bonds? 0:26:53 Out of Plane 0:28:57 Which Orbitals Can Form Pi Bonds - Consider the In-Plane Set 0:31:13 In-Plane

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uk: Математика, природничі науки

description: UCI Chem 131B Molecular Structure & Statistical Mechanics (Winter 2013) Lec 05. Molecular Structure & Statistical Mechanics -- Rotational Spectroscopy -- Part 1. Instructor: Rachel Martin, Ph.D. Description: Principles of quantum mechanics with application to the elements of atomic structure and energy levels, diatomic molecular spectroscopy and structure determination, and chemical bonding in simple molecules. Index of Topics: 0:00:55 Which Orbitals can Form Pi Bonds 0:06:12 Symmetry Properties of Functions 0:08:33 H2 Molecular Orbitals 0:09:00 Vanishing Integrals 0:15:35 Dirac Notation 0:25:54 Big Picture: Spectroscopy 0:34:20 Born-Oppenheimer Approximation 0:38:21 Quantization of Rotation 0:45:39 Z-Component of Angular Momentum

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name: Lecture 05. Rotational Spectroscopy Pt. I.


uk: Математика, природничі науки

description: UCI Chem 131B Molecular Structure & Statistical Mechanics (Winter 2013) Lec 06. Molecular Structure & Statistical Mechanics -- Rotational Spectroscopy -- Part 2. Instructor: Rachel Martin, Ph.D. Description: Principles of quantum mechanics with application to the elements of atomic structure and energy levels, diatomic molecular spectroscopy and structure determination, and chemical bonding in simple molecules. Index of Topics: 0:01:53 Angular Momentum 0:08:13 Spherical Harmonics 0:13:25 Rotational Spectroscopy 0:26:00 Energies and Frequencies 0:31:55 Types of Rigid Motors 0:36:28 Symmetric Rotor 0:39:40 Degeneracy

uk: вхід без авторизації

name: Lecture 06. Rotational Spectroscopy Pt. II.


uk: Математика, природничі науки

description: UCI Chem 131B Molecular Structure & Statistical Mechanics (Winter 2013) Lec 07. Molecular Structure & Statistical Mechanics -- Rotational Spectroscopy -- Part 3. Instructor: Rachel Martin, Ph.D. Description: Principles of quantum mechanics with application to the elements of atomic structure and energy levels, diatomic molecular spectroscopy and structure determination, and chemical bonding in simple molecules. Index of Topics: 0:00:10 Why is the Sky Blue? 0:13:11 Why is Water Blue? 0:20:47 Raman Spectroscopy 0:25:40 Polarizability 0:28:28 Rotational Raman Spectroscopy 0:38:55 IR and Raman Active Modes 0:40:42 Molecular Motion

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name: Lecture 07. Rotational Spectroscopy Pt. III.


Lecture 08. Molecular Motion.

uk: Математика, природничі науки

description: UCI Chem 131B Molecular Structure & Statistical Mechanics (Winter 2013) Lec 08. Molecular Structure & Statistical Mechanics -- Molecular Motion. Instructor: Rachel Martin, Ph.D. Description: Principles of quantum mechanics with application to the elements of atomic structure and energy levels, diatomic molecular spectroscopy and structure determination, and chemical bonding in simple molecules. Slides: 0:00:08 Molecular Motion 0:26:37 Methane Bonding

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Lecture 09. Vibrations in Molecules

uk: Математика, природничі науки

description: UCI Chem 131B Molecular Structure & Statistical Mechanics (Winter 2013) Lec 09. Molecular Structure & Statistical Mechanics -- Vibration in Molecules. Instructor: Rachel Martin, Ph.D. Description: Principles of quantum mechanics with application to the elements of atomic structure and energy levels, diatomic molecular spectroscopy and structure determination, and chemical bonding in simple molecules. Index of Topics: 0:00:08 Methane-Vibrations 0:11:56 Vibrational Modes 0:13:35 IR Spectrum of Methane 0:15:18 Harmonic Oscillator Energy Levels 0:18:24 Vibrational and Rotational Energy Levels 0:20:37 IR Spectrum of HCl 0:39:28 Force Constants 0:41:55 Anharmonic Potential

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Lecture 10. Anharmonic Potential.

uk: Математика, природничі науки

description: UCI Chem 131B Molecular Structure & Statistical Mechanics (Winter 2013) Lec 10. Molecular Structure & Statistical Mechanics -- Anharmonic Potential. Instructor: Rachel Martin, Ph.D. Description: Principles of quantum mechanics with application to the elements of atomic structure and energy levels, diatomic molecular spectroscopy and structure determination, and chemical bonding in simple molecules. Index of Topics: 0:00:08 Anharmonic Potential 0:03:35 IR Selection Rules: Gross Selection 0:09:33 IR Selection Rules: Specific Selection 0:11:41 IR Selection Rules: Anharmonic Potential 0:16:59 IR Spectrum of NO 0:18:40 Raman Spectroscopy 0:26:56 Rotational Transition 0:29:20 Spectra of Styrene/Butadiene Rubber 0:32:50 2,5-Dichloroacetophenone 0:34:02 Time-Resolved Spectroscopy 0:35:19 2D IR 0:36:55 Summary: Spectroscopy

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Lecture 11. First Midterm Exam Review.

uk: Математика, природничі науки

description: UCI Chem 131B Molecular Structure & Statistical Mechanics (Winter 2013) Lec 11. Molecular Structure & Statistical Mechanics -- First Midterm Exam Review. Instructor: Rachel Martin, Ph.D. Description: Principles of quantum mechanics with application to the elements of atomic structure and energy levels, diatomic molecular spectroscopy and structure determination, and chemical bonding in simple molecules. Index of Topics: 0:09:20 Matrix Representation 0:19:39 Group Theory Applications 0:34:45 Vibrational Modes of a Molecule 0:40:30 Vibrational - Rotational Spectroscopy of Diatomic Molecules

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Lecture 12. Electronic Spectroscopy.

uk: Математика, природничі науки

description: UCI Chem 131B Molecular Structure & Statistical Mechanics (Winter 2013) Lec 12. Molecular Structure & Statistical Mechanics -- Electronic Spectroscopy -- Part 1. Instructor: Rachel Martin, Ph.D. Description: Principles of quantum mechanics with application to the elements of atomic structure and energy levels, diatomic molecular spectroscopy and structure determination, and chemical bonding in simple molecules. Index of Topics: 0:04:37 Electronic Spectroscopy 0:11:12 Copper (II) Sulfate (Hydrated) 0:13:48 Atomic Orbitals 0:14:05 D-Metal Complexes 0:15:27 Organic Chromophores 0:17:45 Absorption Spectroscopy 0:35:39 Nuclear and Electronic Hamiltonians 0:37:39 l2 Energy Levels

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uk: Математика, природничі науки

description: UCI Chem 131B Molecular Structure & Statistical Mechanics (Winter 2013) Lec 13. Molecular Structure & Statistical Mechanics -- Electronic Spectroscopy -- Part 2. Instructor: Rachel Martin, Ph.D. Description: Principles of quantum mechanics with application to the elements of atomic structure and energy levels, diatomic molecular spectroscopy and structure determination, and chemical bonding in simple molecules. Index of Topics: 0:00:48 Resonance Raman 0:05:41 Fluorescent Bacteria 0:12:11 GFP Fluorophore 0:14:27 Jablonski Diagram 0:19:19 Fluorescence and Phosphorescence 0:20:47 Aufbau Rules 0:37:56 Find J(subscript) 0:39:53 Hund's Rule 0:41:19 Term Symbols for Linear Molecules

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name: Lecture 13. Electronic Spectroscopy (Pt. II)


uk: Математика, природничі науки

description: UCI Chem 131B Molecular Structure & Statistical Mechanics (Winter 2013) Lec 14. Molecular Structure & Statistical Mechanics -- Electronic Spectroscopy -- Part 3. Instructor: Rachel Martin, Ph.D. Description: Principles of quantum mechanics with application to the elements of atomic structure and energy levels, diatomic molecular spectroscopy and structure determination, and chemical bonding in simple molecules. Index of Topics: 0:00:28 Term Symbols for Linear Molecules 0:04:29 Alternative Empirical Notation 0:06:48 Electronic Spectroscopy - Electrons are Moved Between Orbitals 0:14:11 Franck-Condon Principle 0:34:02 Transition Dipole 0:36:32 Weakly Allowed Transitions 0:38:22 l2 Energy Levels

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name: Lecture 14. Electronic Spectroscopy (Pt. III)


uk: Математика, природничі науки

description: UCI Chem 131B Molecular Structure & Statistical Mechanics (Winter 2013) Lec 15. Molecular Structure & Statistical Mechanics -- Electronic Spectroscopy -- Part 4. Instructor: Rachel Martin, Ph.D. Description: Principles of quantum mechanics with application to the elements of atomic structure and energy levels, diatomic molecular spectroscopy and structure determination, and chemical bonding in simple molecules. Index of Topics: 0:01:42 Quiz 3: Electronic Transition 0:09:25 Diatomic Molecular Term Symbols 0:15:19 Frank-Condon Factors: Diagram 0:17:40 Dissociation Energies 0:20:57 Photoelectron Spectroscopy 0:27:38 X-Ray Crystallography

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name: Lecture 15. Electronic Spectroscopy (Pt. IV)


uk: Математика, природничі науки

description: UCI Chem 131B Molecular Structure & Statistical Mechanics (Winter 2013) Lec 16. Molecular Structure & Statistical Mechanics -- Fourier Transforms, NMR Intro -- Part 1. Instructor: Rachel Martin, Ph.D. Description: Principles of quantum mechanics with application to the elements of atomic structure and energy levels, diatomic molecular spectroscopy and structure determination, and chemical bonding in simple molecules. Index of Topics: 0:01:33 Fourier Series 0:18:45 X-Ray Crystallography 0:23:07 Ion Channels 0:25:12 Pulsed NMR 0:28:48 Free Induction Decay 0:30:34 Fourier Transforms 0:32:31 3 Peaks of the NMR Signal 0:34:25 Stern-Gerlach Experiment 0:41:55 Electron Zeeman Effect 0:47:02 Nuclear Zeeman Effect

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name: Lecture 16. Fourier Transforms, NMR Intro


Lecture 17. NMR (Pt. II)

uk: Математика, природничі науки

description: UCI Chem 131B Molecular Structure & Statistical Mechanics (Winter 2013) Lec 17. Molecular Structure & Statistical Mechanics -- NMR -- Part 2. Instructor: Rachel Martin, Ph.D. Description: Principles of quantum mechanics with application to the elements of atomic structure and energy levels, diatomic molecular spectroscopy and structure determination, and chemical bonding in simple molecules. Index of Topics: 0:02:54 Zeeman Effect 0:06:46 High Field Magnets for NMR/MRI 0:09:09 Nuclear Zeeman Effect 0:11:23 Nuclear Spin Hamiltonian 0:13:28 Relative Sizes of Interactions 0:19:01 Pulsed NMR 0:21:49 Protons Absorbing in a Predictable Region 0:37:58 Spin Quantum Number 0:40:29 Angular Momentum Operators 0:41:40 Eigenstates and Eigenvalues 0:43:35 Zeeman Basis

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Lecture 18. Eigenstates & Eigenvalues

uk: Математика, природничі науки

description: UCI Chem 131B Molecular Structure & Statistical Mechanics (Winter 2013) Lec 18. Molecular Structure & Statistical Mechanics -- Eigenstates & Eigenvalues. Instructor: Rachel Martin, Ph.D. Description: Principles of quantum mechanics with application to the elements of atomic structure and energy levels, diatomic molecular spectroscopy and structure determination, and chemical bonding in simple molecules. Index of Topics: 0:01:19 Matrix Representations 0:05:21 Zeeman Basis 0:11:31 Raising and Lowering Operators 0:17:01 Superpositions 0:21:16 Spin Operators and Eigenstates 0:23:46 Pulsed NMR 0:29:05 NMR Probes 0:31:09 Nutation Curves (Solenoid) 0:36:41 Spin-Lattice Relaxation (T1) 0:44:10 Inversion Recovery (T1) 0:47:11 Relaxation Along the Z-Axis

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Lecture 19. Spin Rotations T1 & T2

uk: Математика, природничі науки

description: UCI Chem 131B Molecular Structure & Statistical Mechanics (Winter 2013) Lec 19. Molecular Structure & Statistical Mechanics -- Spin Rotations T1 & T2. Instructor: Rachel Martin, Ph.D. Description: Principles of quantum mechanics with application to the elements of atomic structure and energy levels, diatomic molecular spectroscopy and structure determination, and chemical bonding in simple molecules. Index of Topics: 0:03:49 Inversion Recovery (T1) 0:04:59 Relaxation Along the Z-Axis 0:09:20 Spin-Spin Relaxation (T2) 0:12:29 Spin Echo (T2) 0:14:04 H NMR Spectroscopy: Spin-Spin Splitting 0:23:49 J-Coupling Product Basis 0:37:21 Sample Spectrum 0:39:14 The Difference Between a Quartet and a Doublet of Doublets 0:42:24 General 2D Pulse Sequence 0:45:56 H-N HSQC

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Lecture 20. NMR Applications/ Review

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description: UCI Chem 131B Molecular Structure & Statistical Mechanics (Winter 2013) Lec 20. Molecular Structure & Statistical Mechanics -- NMR Applications/Review. Instructor: Rachel Martin, Ph.D. Description: Principles of quantum mechanics with application to the elements of atomic structure and energy levels, diatomic molecular spectroscopy and structure determination, and chemical bonding in simple molecules. Index of Topics: 0:06:48 NMR Applications/Review 0:10:26 Going Through the Process 0:15:59 Sidechain Correlations - TOCSY 0:17:54 Mistic Structure 0:18:59 Relative Sizes of Interactions 0:19:40 Quadrupolar Nuclei 0:25:19 Spin 1 0:27:34 Bicelles: Membrane Mimetics 0:29:39 ^(2)H Spectra 0:31:59 Multiple Lipid Phases 0:35:56 NMR Spectroscopy Worksheet

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description: UCI Chem 131B Molecular Structure & Statistical Mechanics (Winter 2013) Lec 21. Molecular Structure & Statistical Mechanics -- Second Midterm Examination Review. Instructor: Rachel Martin, Ph.D. Description: Principles of quantum mechanics with application to the elements of atomic structure and energy levels, diatomic molecular spectroscopy and structure determination, and chemical bonding in simple molecules. Index of Topics: 0:01:33 IR Spectrum of Carbon Monoxide 0:10:36 Electronic Spectroscopy 0:15:17 Frank-Condon Factors 0:19:34 Term Symbols and Electronic Transitions 0:25:05 NMR Spectroscopy

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name: Lecture 21. Second Midterm Examination Review


Lecture 22. The Boltzmann Distribution

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description: UCI Chem 131B Molecular Structure & Statistical Mechanics (Winter 2013) Lec 22. Molecular Structure & Statistical Mechanics -- The Boltzmann Distribution. Instructor: Rachel Martin, Ph.D. Description: Principles of quantum mechanics with application to the elements of atomic structure and energy levels, diatomic molecular spectroscopy and structure determination, and chemical bonding in simple molecules. Index of Topics: 0:05:23 NMR Population Differences 0:10:34 Statistical Mechanics 0:24:26 Weights of Configurations 0:41:17 Relative Populations 0:43:05 Rotational Spectrum of HCl

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Lecture 24. Partition Functions Pt. 2

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description: UCI Chem 131B Molecular Structure & Statistical Mechanics (Winter 2013) Lec 24. Molecular Structure & Statistical Mechanics -- Partition Functions -- Part 2. Instructor: Rachel Martin, Ph.D. Description: Principles of quantum mechanics with application to the elements of atomic structure and energy levels, diatomic molecular spectroscopy and structure determination, and chemical bonding in simple molecules. Index of Topics: 0:02:18 Rotational partition Function 0:08:13 Rotational Temperature 0:12:51 Symmetric Linear Molecule 0:17:01 Rotational Raman for H2 0:23:30 Strokes Lines for H2 0:29:11 The Mean Energy 0:32:42 The Canonical Ensemble

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Lecture 25. Partition Functions.

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description: UCI Chem 131B Molecular Structure & Statistical Mechanics (Winter 2013) Lec 25. Molecular Structure & Statistical Mechanics -- Partition Functions -- Part 3. Instructor: Rachel Martin, Ph.D. Description: Principles of quantum mechanics with application to the elements of atomic structure and energy levels, diatomic molecular spectroscopy and structure determination, and chemical bonding in simple molecules. Index of Topics: 0:01:02 Simulation 0:06:38 Langrange Multipliers: Motivation 0:16:30 Multiple Constraints 0:38:36 Curie's Law

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Lecture 26. Final Exam Review

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description: UCI Chem 131B Molecular Structure & Statistical Mechanics (Winter 2013) Lec 26. Molecular Structure & Statistical Mechanics -- Final Exam Review. Instructor: Rachel Martin, Ph.D. Description: Principles of quantum mechanics with application to the elements of atomic structure and energy levels, diatomic molecular spectroscopy and structure determination, and chemical bonding in simple molecules. Index of Topics: 0:04:15 The Canonical Ensemble 0:08:40 Point Groups: Flow Chart 0:11:27 Group Theory - Molecular Motion 0:16:05 Big Picture: Spectroscopy 0:24:58 Term Symbols 0:30:48 Selection Rules 0:33:41 Electronic Spectroscopy 0:34:54 Nuclear Zeeman Effect 0:38:48 Raising and Lowering Operators 0:40:17 Eigenstates and Eigenvalues 0:41:54 J-Coupling: Product Basis 0:42:59 Statistical Mechanics 0:44:13 Molecular Partition Function

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description: UCI Chem 131C Thermodynamics and Chemical Dynamics (Spring 2012) Lec 01. Thermodynamics and Chemical Dynamics -- Syllabus, Homework, & Lectures -- Instructor: Reginald Penner, Ph.D. Description: In Chemistry 131C, students will study how to calculate macroscopic chemical properties of systems. This course will build on the microscopic understanding (Chemical Physics) to reinforce and expand your understanding of the basic thermo-chemistry concepts from General Chemistry (Physical Chemistry.) We then go on to study how chemical reaction rates are measured and calculated from molecular properties. Topics covered include: Energy, entropy, and the thermodynamic potentials; Chemical equilibrium; and Chemical kinetics. Index of Topics: 0:25:58 Quantum Mechanics Timeline 0:31:26 James Clark Maxwell 0:32:25 Ludwig Boltzmann 0:33:23 Willard Gibbs 0:35:35 Statistical Mechanics 0:37:54 The Free Energy of Ammonia 0:43:30 Microstate

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name: Lecture 01. Syllabus, Homework, & Lectures.


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description: UCI Chem 131C Thermodynamics and Chemical Dynamics (Spring 2012) Lec 02. Thermodynamics and Chemical Dynamics -- The Boltzmann Distribution Law -- Instructor: Reginald Penner, Ph.D. Description: In Chemistry 131C, students will study how to calculate macroscopic chemical properties of systems. This course will build on the microscopic understanding (Chemical Physics) to reinforce and expand your understanding of the basic thermo-chemistry concepts from General Chemistry (Physical Chemistry.) We then go on to study how chemical reaction rates are measured and calculated from molecular properties. Topics covered include: Energy, entropy, and the thermodynamic potentials; Chemical equilibrium; and Chemical kinetics. Index of Topics: 0:04:17 The Boltzmann Distribution Law 0:07:44 Notation for Specifying a Particular Configuration 0:14:41 The Number of Microstates 0:20:27 Configuration VI 0:29:48 Which Configuration is Preferred? 0:33:28 Number of Microstates Before and After 0:37:25 The Boltzmann Distribution Law 0:43:07 Molecular Partition Function 0:52:33 How Much Thermal Energy is in the System?

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name: Lecture 02. The Boltzmann Distribution Law.


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description: UCI Chem 131C Thermodynamics and Chemical Dynamics (Spring 2012) Lec 03. Thermodynamics and Chemical Dynamics -- Energy and q (The Partition Function) -- Instructor: Reginald Penner, Ph.D. Description: UCI Chem 131C covers the following topics: Energy, entropy, thermodynamic potentials, chemical equilibrium, and chemical kinetics. Index of Topics: 0:00:19 Example: A Certain atom... 0:03:35 Calculating Thermal Energy 0:04:22 Energy Level Diagram 0:15:45 Partition Function

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name: Lecture 03. Energy and q (The Partition Function).


Lecture 04. Entropy.

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description: UCI Chem 131C Thermodynamics and Chemical Dynamics (Spring 2012) Lec 04. Thermodynamics and Chemical Dynamics -- Entropy -- Instructor: Reginald Penner, Ph.D. Description: In Chemistry 131C, students will study how to calculate macroscopic chemical properties of systems. This course will build on the microscopic understanding (Chemical Physics) to reinforce and expand your understanding of the basic thermo-chemistry concepts from General Chemistry (Physical Chemistry.) We then go on to study how chemical reaction rates are measured and calculated from molecular properties. Topics covered include: Energy, entropy, and the thermodynamic potentials; Chemical equilibrium; and Chemical kinetics. Index of Topics: 0:04:17 Boltzmann Distribution Law 0:15:37 Three Types of Ensembles 0:31:55 S = k ln W

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