Online courses directory (1728)

As modern life science research becomes ever more quantitative, the need for mathematical modeling becomes ever more important. A deeper and mechanistic understanding of complicated biological processes can only come from the understanding of complex interactions at many different scales, for instance, the molecular, the cellular, individual organisms and population levels.

In this course, through case studies, we will examine some simplified and idealized mathematical models and their underlying mathematical framework so that we learn how to construct simplified representations of complex biological processes and phenomena. We will learn how to analyze these models both qualitatively and quantitatively and interpret the results in a biological fashion by providing predictions and hypotheses that experimentalists may verify.

当现代生命科学研究变得更加量化，建立数学模型的需求变得越来越重要。对复杂生物现象的深入理解最终是建立在了解发生于多时空间尺度的复杂生物学相互作用上，例如，分子尺度，细胞尺度，个体和群体尺度上。通过研究一些案例，我们将建立一些简化的数学模型以及其背后的基本数学框架。同时，我们将学习如何建立基本生物学过程的简单表征，以及如何定量和定性和定量地的分析这些模型，并将它们的结果以生物学的方式进行解释，以期提供实验学家进行检验的假说和预测。

This is the second of five modules to introduce concepts and current frontiers of atomic physics and to prepare you for cutting-edge research:

8.421.1x: Resonance

8.421.2x: Atomic structure and atoms in external field

8.421.3x: Atom-Light Interactions 1 -- Matrix elements and quantized field

8.421.4x: Atom-Light interactions 2 --  Line broadening and two-photon transitions

8.421.5x: Coherence

The second module, 8.421.2x, describes atomic structure, including electronic levels, fine structure, hyperfine structure and Lamb shift.  You will then learn about how electric and magnetic fields shift atomic levels. The discussion of time-dependent electric fields prepares you for the interactions of atoms with light and for the dressed atom picture.

At MIT, the content of the five modules makes the first of a two-semester sequence (8.421 and 8.422) for graduate students interested in Atomic, Molecular, and Optical Physics. This sequence is required for Ph.D. students doing research in this field.

In these modules you will learn about the interaction of radiation with atoms: resonance; absorption, stimulated and spontaneous emission; methods of resonance, dressed atom formalism, masers and lasers, cavity quantum electrodynamics; structure of simple atoms, behavior in very strong fields; fundamental tests: time reversal, parity violations, Bell's inequalities; and experimental methods.

Completing the two-course sequence allows you to pursue advanced study and research in cold atoms, as well as specialized topics in condensed matter physics.

FAQ

Who can register for this course?

Unfortunately, learners from Iran, Cuba, Sudan and the Crimea region of Ukraine will not be able to register for this course at the present time. While edX has received a license from the U.S. Office of Foreign Assets Control (OFAC) to offer courses to learners from Iran and Sudan our license does not cover this course.

Separately, EdX has applied for a license to offer courses to learners in the Crimea region of Ukraine, but we are awaiting a determination from OFAC on that application. We are deeply sorry the U.S. government has determined that we have to block these learners, and we are working diligently to rectify this situation as soon as possible.

Course image uses graphic by SVG by Indolences. Recoloring and ironing out some glitches done by Rainer Klute. [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/)], via Wikimedia Commons

Learn about the inspirational work of the leading European painters from approximately 1400 to 1800, and explore the issues expressed through the art of painting. Included in this broad time frame are the works of Leonardo da Vinci, Caravaggio, Velázquez, Rembrandt, Vermeer and Goya.

Painters during this period were concerned with ideas such as the pursuit of beauty, the pleasures and pains associated with love, the demonstration of power and status, or the relationship of men and women to the divinity and to nature. In paintings from this period, we find traces of the emergence of the modern mind set, and perspective on issues such as the respective roles of women and men in the world.

This course focuses on images of paintings by the artists listed in the course syllabus. The discussions that will take place in the “course forum” will allow us to touch upon a broader range of issues.

This is the first of five modules to introduce concepts and current frontiers of atomic physics, and to prepare you for cutting-edge research:

8.421.1x: Resonance

8.421.2x: Atomic structure and atoms in external field

8.421.3x: Atom-Light Interactions 1 -- Matrix elements and quantized field

8.421.4x: Atom-Light interactions 2 --  Line broadening and two-photon transitions

8.421.5x: Coherence

The first module, 8.421.1x, introduces resonance as an overarching theme of the course. You will deepen your understanding of the physics of resonance by examining systems using both classical and quantum techniques. Of special importance is the precession of a magnetic moments in time-dependent magnetic fields.

At MIT, the content of the five modules makes the first of a two-semester sequence (8.421 and 8.422) for graduate students interested in Atomic, Molecular, and Optical Physics. This sequence is required for Ph.D. students doing research in this field.

In these modules you will learn about the interaction of radiation with atoms: resonance; absorption, stimulated and spontaneous emission; methods of resonance, dressed atom formalism, masers and lasers, cavity quantum electrodynamics; structure of simple atoms, behavior in very strong fields; fundamental tests: time reversal, parity violations, Bell's inequalities; and experimental methods.

Completing the five-course sequence allows you to pursue advanced study and research in cold atoms, as well as specialized topics in condensed matter physics.

FAQ

Who can register for this course?

Unfortunately, learners from Iran, Cuba, Sudan and the Crimea region of Ukraine will not be able to register for this course at the present time. While edX has received a license from the U.S. Office of Foreign Assets Control (OFAC) to offer courses to learners from Iran and Sudan our license does not cover this course.

Separately, EdX has applied for a license to offer courses to learners in the Crimea region of Ukraine, but we are awaiting a determination from OFAC on that application. We are deeply sorry the U.S. government has determined that we have to block these learners, and we are working diligently to rectify this situation as soon as possible.

Course image uses graphic by SVG by Indolences. Recoloring and ironing out some glitches done by Rainer Klute. [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/)], via Wikimedia Commons

Protein is found in virtually every part of your body. At least 10,000 different proteins make you what you are and keep you that way.

In this biology course you will learn how proteins drive almost all living processes.

Proteins manufactured by cells perform a broad range of essential functions — the molecular workforce of living organisms.

You will learn how proteins are the cellular manifestation of genetic information. They are assembled into a polymeric structure from monomers derived in part from components in our diet. Proteins catalyze metabolic reactions, replicate DNA, respond to stimuli, provide movement, and much more. Using video lectures, articles, case studies, and molecular models, we will explore how proteins are constructed, how they fold into 3-dimensional shapes, the kinds of bonds that hold these folded structures together, and the immense range of roles that proteins assume ‑ from structural proteins found in muscle to catalysts for cellular chemical reactions.

Purification and characterization are essential to understand protein structure and function, and we will identify a variety of methods to uncover how these tiny machines drive almost all living processes.

Conoce la obra inspiradora de los principales pintores europeos desde 1400 hasta 1800 aproximadamente, y descubre los problemas que encuentran su expresión en el arte de la pintura. En este amplio marco temporal se incluyen artistas de la importancia de Leonardo da Vinci, Caravaggio, Velázquez, Rembrandt, Vermeer o Goya.

Los pintores durante este periodo estaban preocupados por ideas tales como la búsqueda de la belleza, los placeres y dolores asociados al amor, la demostración de poder y estatus, o la relación de hombres y mujeres con la divinidad y la naturaleza. En las pinturas del período cubierto en este curso se encuentran rastros de la aparición de la mentalidad moderna, así como información sobre cuestiones tales como los roles respectivos de los hombres y las mujeres en el mundo.

Este curso se centrará en imágenes de pinturas de los artistas que figuran en el programa del curso. Las discusiones que tendrán lugar en el "Foro del curso" nos permitirán abordar una gama más amplia de cuestiones.

Organic electronic devices are quickly making their way into the commercial world, with innovative thin mobile devices, high-resolution displays, and photovoltaic cells. The future holds even greater potential for this technology, with an entirely new generation of ultralow-cost, lightweight and even flexible electronic devices, which will perform functions traditionally accomplished with much more expensive components based on conventional semiconductor materials, such as silicon.

Learn more about this highly promising technology, which is based on small molecules and polymers, and how these materials can be implemented successfully in established (e.g., organic light-emitting devices (OLEDs), organic photovoltaic (OPV) devices) and emerging (e.g., thermoelectric (TE) generators) organic electronic modules.

In this course you will gain the ability to tie molecular transport phenomena with macroscopic device response such that you will be well-prepared to analyze, troubleshoot, and design the next generation of organic electronic materials and devices.
 
This course has short lectures with quizzes, homework, and exams.

This course is the latest nanoHUB-U project in a series offered is jointly funded by Purdue University and the NSF with the goal of transcending disciplines though short courses accessible to students in any branch of science or engineering. 

The course invites you to examine the interconnectedness of modern life through an exploration of fundamental questions about how our social, economic, and technological worlds are connected. Students will explore game theory, the structure of the Internet, social contagion, the spread of social power and popularity, and information cascades.

This MOOC is based on an interdisciplinary Cornell University course entitled Networks, taught by professors David Easley, Jon Kleinberg, and Éva Tardos. That course was also the basis for the book, Networks, Crowds, and Markets: Reasoning About a Highly Connected World. This course is designed at the introductory undergraduate level without formal prerequisites.

Ce cours est une première introduction à la mécanique des fluides. Nous allons aborder tout d'abord les propriétés physiques des fluides : les états de la matière et la notion de viscosité. Un chapitre sera dédié à la tension de surface et à la capillarité. Nous introduirons ensuite le concept de similitude et l’utilisation des nombres adimensionnels. Nous allons alors considérer la statique des fluides à travers la loi de l'hydrostatique. La dynamique des fluides sera abordée en premier lieu par la cinématique. Ensuite, nous traiterons des équations de bilan avec notamment une application du théorème de conservation de l’énergie cinétique : le théorème de Bernoulli. Dans le dernier, nous montrerons que ce théorème relativement simple permet d’expliquer et de calculer des écoulements tels que ceux observés dans les rivières. Les vidéos du cours seront enrichies de vidéos d’expériences qui illustreront les concepts clés et par des quiz pour tester votre intuition et vos connaissances. Le dernier module vous permettra de piloter à distance une expérience d'hydraulique qui a lieu dans les laboratoires de l'EPFL.

This course is presented in French. 

For the first hundreds of years of modern medicine, progress was a process of trial and error, and to be honest, it was often fatal error, such as bloodletting, which killed the first US president George Washington. Where diseases were clearly understood, and where treatments obviously worked on most patients, such as penicillin for pneumonia, there was no need to delve deeper into questions of effectiveness. But for most conditions, the treatment benefits were modest and there was a need for improved ways of telling whether a new intervention was better than the previous standard treatment. And so scientists introduced a testing procedure for new treatments - the randomized controlled trial.

As the cost of developing new treatments grew, it became very important to detect the slightest improvement that could be attributed to the new drug in order to get it licensed and marketed. So the usual randomized trial was answering the following question: does this treatment work (for otherwise well people with just this single disease, with perfect adherence, treated by the best doctors, under idealised conditions)? But most patients have multiple diseases, imperfect adherence, ordinary doctors and non-ideal circumstances. These patients want to know whether a new treatment is likely to reduce important harms for ordinary people like them, receiving usual care. This mismatch meant that most trials were overestimating the real world effectiveness of new interventions.

In this MOOC, we are going to study this mismatch, and see what its effect is on modern medical care. One example of the studies we will discuss is the VIGOR trial. This influential drug trial resulted in the widespread global overuse of this drug, at a cost of wasted billions of dollars. Ironically, this drug, intended to reduce a problem in individuals, ended up causing more of the same problem in the population!

After we understand the consequences of designing the wrong kinds of trials, we will also look at how best to design pragmatic randomized trials, which answer the important questions that ordinary patients and decision makers in the real world most often ask. We will also explore how these can be combined with economic evaluations and qualitative research – to answer important questions about how much these interventions cost, and how they are experienced by the recipients.

Los vídeos serán en español o inglés. Se ofrecerán subtítulos en ambos idiomas. Las actividades se realizarán en ambos idiomas.

*Videos will be in English or Spanish. Transcripts in both languages will be provided. The assessments will be in both languages.

Este curso presenta las nuevas tendencias y formatos del documental audiovisual contemporáneo, prestando especial atención a las prácticas más innovadoras en un contexto interactivo, transmedia y multiplataforma. Incluye una aproximación a los géneros y autores fundamentales, y  cuenta con la participación de profesionales del sector, documentalistas y académicos.

A través de vídeos, infografías, animaciones y timelines y un amplio repertorio de recursos y materiales complementarios, se busca ofrecer al  alumno claves creativas y eficaces en el momento actual.

Este MOOC consta de los siguientes módulos:

• El documental está de moda.
• Flashback: Introducción a la historia del documental.
• Documental web: Reinvención del documental en Internet.
• Ciberactivismo y documental político en el ecosistema viral.
• F for Fake o falso documental a ritmo de social networking.
• Documental de divulgación: Naturaleza, cultura, historia, ciencia.
• Documental de creación en tiempos de crowdfunding.
• Brand-Documental: Nuevas estrategias publicitarias.

This course features new trends and formats in contemporary documentary film with a focus on innovative works in an interactive and multi-platform environment. It includes an overview of essential authors and genres, as well as the contribution of national and international scholars, professionals of the field and documentary makers.

The learning experience is enhanced with videos, slideshows, infographics and timelines, to provide the learner with an interactive, reflective and entertaining experience.

This MOOC is divided into the following segments:

• Documentary film is in vogue.
• Flashback: Introduction to documentary film history.
• Web documentary: Reinventing documentary film on the Internet.
• Cyberactivism and political documentary in a viral ecosystem.
• F for Fake or false documentary moving to the rhythm of social networking.
• News and thematic documentary: Nature, culture, history, science.
• Creative documentary film in times of crowdfunding.
• Brand-Documentary: New strategies in advertising.

En este curso se recordará lo que es una ecuación con una única incógnita y cómo solucionarla. A partir de ahí se tratarán:

• Los sistemas de ecuaciones lineales. Cómo se definen, cómo se clasifican y cómo se resuelven utilizando el método de Gauss
• El concepto de matriz y las operaciones entre matrices
• El cálculo de matrices inversas mediante el método de Gauss y el de los adjuntos
• Una introducción a las ecuaciones matriciales
• El determinante de una matriz cuadrada y su cálculo
• El rango de una matriz
• La expresión matricial de un sistema de ecuaciones lineales y la regla de Cramer

Ever wondered about the sacred scriptures that have sustained for millennia one of the oldest and most diverse religions of the world - Hinduism? Want to discover the lessons this history may offer mankind in the 21st century?

This religion course introduces the rich and diverse textual sources from which millions of Hindus have drawn religious inspiration for millennia. The Bhagavad Gita has offered philosophical insights to a number of modern thinkers. This course will introduce important passages from important Hindu sacred texts, their interpretations by moderns and will give you an opportunity to engage with them.

This course in part of the World Religions Through Their Scripture XSeries Program.

From simulating complex phenomenon on supercomputers to storing the coordinates needed in modern 3D printing, data is a huge and growing part of our world. A major tool to manipulate and study this data is linear algebra. This course is part 1 of a 2-part course.  In this part, we’ll learn basics of matrix algebra with an emphasis on application. This class has a focus on computer graphics while also containing examples in data mining. We’ll learn to make an image transparent, fade from one image to another, and rotate a 3D wireframe model. We’ll also mine data; for example, we will find similar movies that one might enjoy seeing. In the topic of sports ranking, we’ll be ready to participate in March Madness and submit our own mathematically generated brackets to compete against millions of others. The lectures are developed to encourage you to explore and create your own ideas either through your own programming but also with online tools developed for the course. Come to this course ready to investigate your own ideas.

Courses offered via edX.org are not eligible for academic credit from Davidson College. A passing score in a DavidsonX course(s) will only be eligible for a verified certificate generated by edX.org.

¡La Química Orgánica está en todas partes! Simplemente nos rodea. ¿Te has dado cuenta que nosotros mismos somos Química Orgánica? Las moléculas biológicas son Química Orgánica. En este curso se introducen los fundamentos de la Química Orgánica y de la estructura molecular, sin que sea necesario tener ningún conocimiento previo de Química, ¡lo creas o no!.

El curso mostrará el carácter actual, y a veces dramático, de las concepciones que desde la filosofía griega han venido siendo denominadas como “idealismo”. Desplegará las grandes cosmovisiones occidentales en base a sus ideas rectoras, operativas en los estadios científico, artístico y sociocultural, haciendo ver cómo la filosofía ha servido de sustrato o conexión de todas estas manifestaciones espirituales, estableciendo una sistemática efectiva, patente en la atmósfera cultural de las épocas-mundo. Cada uno de estos “mundos” (en el sentido de “ordenación global”) está configurado por un conjunto bien trabado de ideas-fuerza, en torno a una Idea fundamental.

El alumno obtendrá una visión general de la cohesión interna y organización de cada una de estas cosmovisiones, respecto a las cuales se pondrá el acento en su presencia activa en los problemas del presente.

Múltiples y diversas manifestaciones muestran que se están produciendo unos profundos cambios en el mundo. El modelo de la sociedad industrial está dejando paso a un nuevo modelo de sociedad, aún difuso, en el que la capacidad de transformar la información en conocimiento es clave. Es fácil deducir que para esta nueva sociedad emergente se necesita un concepto de educación bien distinto al que requería la sociedad industrial. Sin este cambio educativo difícilmente se podrá conseguir satisfactoriamente el cambio y, consecuentemente, instalarse adecuadamente en un mundo que va a alterarse radicalmente.

El curso tiene dos objetivos. El primero es presentar el fenómeno de la transformación de la sociedad que estamos viviendo y los fundamentos para definir el mundo que está emergiendo como el de la sociedad del conocimiento.  La pretensión de la primera parte es disponer de un escenario suficientemente detallado y sólido de lo que está sucediendo y superar así la visión e interpretación triviales que pueda haber sobre un nuevo modelo de sociedad. Sin esta buena base es difícil fundamentar el siguiente objetivo del curso: el papel de la educación.

El objetivo de tratar la educación en este curso es para presentarla en estrecha relación con una intensa crisis cultural que inevitablemente tiene que sobrevenir para que no aumente el desajuste entre el mundo tecnológico -planetario, desigual y contradictorio- que hemos levantado y los valores culturales de otros tiempos con los que queremos mirar e interpretar el mundo de hoy y el que se avecina. Así que se tratará la estrecha relación que hay y debe haber entre educación y cultura. De igual modo se verá en el curso la relación entre tecnología y educación, no desde el punto de vista instrumental, sino cultural.

La pretensión del curso es que de esta observación del fenómeno actual de  cambio, y de la interpretación del papel de la educación para la orientación y control de ese cambio, surjan elementos inspiradores de acciones educativas precisas ajustadas a las múltiples realidades concretas desde las que se están sintiendo los desafíos de vivir en el siglo XXI.

El planteamiento didáctico del curso seguirá la estructura de un viaje por el tiempo, por lugares y también por conceptos que haga ameno el recorrido durante las siete semanas. En cuanto a la parte textual, habrá la experiencia de lectura de piezas multimedia concebidas y escritas para la lectura en pantalla, y especialmente en smartphones y tabletas.

Según datos publicados por Gartner a nivel mundial, casi el 60% de los teléfonos vendidos en 2013 fueron teléfonos inteligentes. Alrededor del 80% de estos teléfonos llevaban en su interior el sistema operativo Android. No cabe duda, por lo tanto, de que formarse en Android es una de las mejores inversiones que puede hacer un programador en la actualidad.

Como cabría esperar, escribir aplicaciones para dispositivos móviles no es lo mismo que hacerlo para ordenadores de sobremesa. Las aplicaciones móviles deben ser capaces de ejecutarse en un rango enorme de dispositivos, no solo teléfonos, sino también relojes, pulseras, coches y televisores. Android da una respuesta satisfactoria a estos desafíos en código abierto y recientemente ha añadido plataformas como Android Wear, Android TV y Android Auto, que abren una nueva frontera de desarrollo.

El objetivo de este curso es que los estudiantes aprendan los fundamentos de la programación en Android mediante el desarrollo paso a paso de una aplicación. Al finalizar el curso cada estudiante habrá completado un pequeño juego casi sin darse cuenta, adquiriendo los conocimientos necesarios para utilizar los principales elementos de Android como son las actividades, los ficheros de diseño, las intenciones, los fragmentos, los menús, los diálogos, las preferencias, etc.

Esperamos que disfrutes del curso.

En un lugar de la UAM, cuyo nombre merece recordar, habita la España de El Quijote. 

Un espacio en el que su monarquía creó el primer imperio global de la Historia. Un tiempo, entre los siglos XVI y XVII, en el que su sociedad alcanzó la excelencia en las artes y las letras.

Aunque ese esplendor se dio en plenos aires de cambio. Pues España pasó de la hegemonía a la decadencia, de la expansión a la crisis.

Esta asignatura pretende trazar la historia de aquella época. Entre el Renacimiento y el Barroco su cultura marcó la pauta en Occidente. Las obras literarias -La Celestina, El Lazarillo, etc.- se tradujeron enseguida en las imprentas europeas y americanas. Las ropas marcaron la moda cortesana. La tendencia más fashion era “vestir a la española”. Los tratados militares y políticos fueron estudiados por los enemigos.

La acumulación de talentos en la Villa y Corte de Madrid (Cervantes, Lope, Velázquez, etc.), tuvo réplicas en las grandes ciudades de imperio. Pues en Sevilla, Lisboa, Barcelona, Nápoles, México o Lima se multiplicaron academias literarias, estrenos teatrales y fiestas. Una síntesis de pueblos unidos por la lealtad a la Corona y la fe católica.

En nuestro recorrido por esa España de El Quijote pasaremos de la campana al reloj y de la geografía fantástica a la real. La sociedad estuvo - Conocer la Historia de España en el Siglo de Oro a través de El Quijote como hilo conductor.

• Adentrarnos en la vida cotidiana de los siglos XVI y XVII a través de la sociedad y la cultura.
• Ofrecer al alumnado las fuentes escritas y visuales para que contemple el tiempo de El Quijote como si viviese en él.
• Comparar los valores de la España de El Quijote con los actuales para comprender cómo han ido evolucionando a lo largo de la Historia polarizada entre los privilegiados -nobleza y clero- y los pobres y los picaros. El Humanismo fue cultivado en las universidades. La familia, la alimentación, la vivienda, los juegos y las fiestas, protagonizaron la vida cotidiana. 

En el tiempo de El Quijote las luces de los genios literarios y artísticos brillaron sobre las sombras de la Inquisición. Viajemos, pues, a esta excelsa cultura del Siglo de Oro.

This is an introductory course on options and other financial derivatives, and their applications to risk management. We will start with discrete-time, binomial trees models, but most of the course will be in the framework of continuous-time, Brownian Motion driven models. A basic introduction to Stochastic, Ito Calculus will be given. The benchmark model will be the Black-Scholes-Merton pricing model, but we will also discuss more general models, such as stochastic volatility models. We will discuss both the Partial Differential Equations approach, and the probabilistic, martingale approach. We will also cover an introduction to modeling of interest rates and fixed income derivatives.

I teach the same class at Caltech, as an advanced undergraduate class. This means that the class may be challenging, and demand serious effort. On the other hand, successful completion of the class will provide you with a full understanding of the standard option pricing models, and will enable you to study the subject further on your own, or otherwise. You should have a working knowledge of basic calculus, statistics, and probability and be interested in the use of mathematical modeling. Please go to Unit 0 in the Course Outline to take the prerequisites assessment.