Courses tagged with "Nutrition" (6413)

Are you an educator? Double your impact by taking advantage of both the classroom and online environments. Explore methods to effectively combine the two formats and build a class community that engages students and supports active learning in any subject area. For educators both new and experienced. To receive a certificate of completion from the instructor the students must complete one of two options for the final project.

Comment décrire l’écoulement d’une rivière ou d’un fleuve ? Quelle influence un rétrécissement local ou une pile de pont dans la rivière peuvent-ils avoir sur le niveau d’eau ? Quels aménagements vont permettre de limiter les impacts d’événements naturels tels qu’une crue ou une inondation sur la population et les villes avoisinantes ? Autant de questions qui reflètent l’importance de la compréhension du fonctionnement des cours d’eau.

Face aux enjeux majeurs liés à la problématique de l’eau, ce MOOC en hydraulique à surface libre va vous donner des clés pour comprendre les écoulements et leurs interactions avec l’environnement. Cette compréhension joue un rôle primordial pour assurer une gestion responsable et concevoir des aménagements qui permettent de tirer profit des cours d’eau tout en préservant l’environnement des impacts négatifs.

Ce cours résulte d’une collaboration entre experts de plusieurs universités. Durant les quatre semaines de cours, vous serez confrontés à la modélisation des écoulements à surface libre, en allant de l’écoulement uniforme aux écoulements graduellement et brusquement variés avec les ressauts hydrauliques. Vous apprendrez à déterminer l’influence que peuvent avoir des singularités locales sur le niveau d’eau, comme des rétrécissements ou la présence de piles de pont.

Au fil des séquences, notions théoriques s’alterneront avec applications concrètes sur des sites haïtiens, français et suisses. Afin de consolider vos connaissances, vous serez encouragés à répondre à différents questionnaires ou à interagir concrètement avec les autres participants.

Ce cours peut ensuite être complété par le cours « Hydraulique fluviale 2 –Sédiments et morphologie fluviale ».

En collaboration avec le réseau Rescif.      
 
       

Pourquoi le lit de la rivière présente-t-il des zones d’érosion et de dépôts ? Comment la rivière évolue-t-elle au fil du temps, parfois de manière très rapide et catastrophique ? L’Homme est-il capable, et a-t-il intérêt à maîtriser les rivières ? Autant de questions qui reflètent l’importance de la compréhension du fonctionnement des rivières.

Face aux enjeux majeurs liés à la problématique de l’eau et plus particulièrement à la gestion durable des rivières, ce MOOC en hydraulique fluviale va vous donner des clés pour comprendre l’équilibre et l’évolution des rivières et leurs interactions avec l’environnement. Cette compréhension joue un rôle primordial pour assurer une gestion responsable de la rivière qui permette d’en tirer profit tout en préservant l’environnement de ses impacts négatifs.

Ce cours résulte d’une collaboration entre experts de plusieurs universités. Durant les quatre semaines de cours, vous serez confrontés successivement à l’étude des sédiments et du transport solide, à la caractérisation morphologique des rivières et aux conséquences – parfois inattendues – des travaux fluviaux.

Au fil des séquences, notions théoriques s’alterneront avec applications concrètes, notamment sur des sites haïtiens et suisses. Afin de consolider vos connaissances, vous serez encouragés à répondre à différents questionnaires ou à interagir concrètement avec les autres participants.

En fonction de votre degré de connaissances dans ce domaine, ce cours peut être précédé de « Hydraulique fluviale 1 – Écoulements à surface libre », qui lui est prérequis.

En collaboration avec le réseau Rescif.      
 
       

This course covers the development of the fundamental equations of fluid mechanics and their simplifications for several areas of marine hydrodynamics and the application of these principles to the solution of engineering problems. Topics include the principles of conservation of mass, momentum and energy, lift and drag forces, laminar and turbulent flows, dimensional analysis, added mass, and linear surface waves, including wave velocities, propagation phenomena, and descriptions of real sea waves. Wave forces on structures are treated in the context of design and basic seakeeping analysis of ships and offshore platforms. Geophysical fluid dynamics will also be addressed including distributions of salinity, temperature, and density; heat balance in the ocean; major ocean circulations and geostrophic flows; and the influence of wind stress. Experimental projects conducted in ocean engineering laboratories illustrating concepts taught in class, including ship resistance and model testing, lift and drag forces on submerged bodies, and vehicle propulsion.

This course develops the theory and design of hydrofoil sections, including lifting and thickness problems for sub-cavitating sections, unsteady flow problems, and computer-aided design of low drag cavitation-free sections. It also covers lifting line and lifting surface theory with applications to hydrofoil craft, rudder, control surface, propeller and wind turbine rotor design. Other topics include computer-aided design of wake adapted propellers; steady and unsteady propeller thrust and torque; performance analysis and design of wind turbine rotors in steady and stochastic wind; and numerical principles of vortex lattice and lifting surface panel methods. Projects illustrate the development of computational methods for lifting, propeller and wind turbine flows, and use of state-of-the-art simulation methods for lifting, propulsion and wind turbine applications.

A flow is called hypersonic if the Mach number is greater than 5. This means that the flow speed is more than five times the speed of sound. In air at room temperature, the speed of sound is around 340 m/s, so a Mach 5 flow would have a flow speed of 1.7 km/s or just over 6,000 km/h. When a rocket launches a satellite into earth orbit, when a probe enters the atmosphere of another planet or when an aircraft is propelled by a supersonic combustion ramjet engine (a scramjet), hypersonic flows are encountered. Hypersonics – from Shock Waves to Scramjets introduces the basic concepts associated with flight at speeds greater than Mach 5 and takes students to the stage where they can analyse the performance of a scramjet engine that might be used in a future access-to-space system.

When you meet a new person, it is hard to know what to expect.  You may not be able to read the person or understand what they mean. Even if you want to have a good relationship with them, this lack of understanding can make interactions tense, unpredictable and scary! The same is true for a lot of people as they encounter statistics and mathematical ways of working with data.  Statistics can be confusing and opaque.  Symbols, Greek letters, very large and very small numbers, and how to interpret all of this can leave to feeling cold and disengaged—even fearful and resentful.

But in the modern information age, having a healthy relationship with statistics can make life a whole lot easier. We are constantly faced with an onslaught of data and claims about it—from news articles, to Facebook and blog posts, casual and professional conversations, reports at our workplace, advertising, and claims from politicians and public officials. How can we process that information, make sense of it, evaluate truth claims, and put ourselves in a position to act on the information?  One of the most important ways is by befriending statistics and consistently using statistical ways of thinking.
 
The purpose of this course, then is to help you develop a functional, satisfying, and useful life-long relationship with statistics. To achieve that goal, we will take a non-technical approach—you will learn how statistics work and why they are so helpful in evaluating the world of information that is around us. You will learn about the logic of statistical thinking and the concepts (rather than the mathematical details and probability theory) that guide statistical inferences and conclusions.
 
You do not need to be a math whiz to take this course. If you can add, subtract, multiply, and divide (or just be able to use a calculator to do that!), you will be more than able to handle what will happen as this relationship develops.

By the end of the course you will be able to:

• Identify the most important features of a data set
• Select a statistical test based on the features of the data
• Think like a statistical detective
• Understand the relationship between two different characteristics or variables
• Perform some simple statistical calculations and draw some conclusions from real data
• Hopefully, love stats! 

We’ll do all of this using entertaining examples related to real-life situations we all encounter in everyday life.

Why and how are teachers integrating ICT (Information and Communication Technology) into primary education? In this course we analyse examples from schools in different parts of the world, and bring professional teachers, headteachers and policymakers together to share their best ideas and inspiring stories. The materials in the course are based on studies carried out for the UNESCO Institute of IT in Education, Moscow.

Explora la cobertura de pensiones en América Latina y el Caribe y potenciales reformas previsionales para alcanzarla de forma universal en la Región.

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.

The last century ushered in significant progress. Philosophers, scientists, artists, and poets overthrew our understanding of the physical world, of human behavior, of thought and its limits, and of art, creativity, and beauty. Scientific progress improved the way we lived across the world. Yet the last century also brought increased levels of war, tyranny, and genocide. Man pushed boundaries of good and evil, right and wrong, justice and injustice – and people lost faith in values. Now, thinkers and leaders are reconstructing theories of value and creating institutions to embody them. Join this thought-provoking, broad-sweeping course as it draws intriguing connections between philosophy, art, literature, and history, illuminating our world and our place in it. Before your course starts, try the new edX Demo where you can explore the fun, interactive learning environment and virtual labs. Learn more.

This course provides a broad theoretical basis for system identification, estimation, and learning. Students will study least squares estimation and its convergence properties, Kalman filters, noise dynamics and system representation, function approximation theory, neural nets, radial basis functions, wavelets, Volterra expansions, informative data sets, persistent excitation, asymptotic variance, central limit theorems, model structure selection, system order estimate, maximum likelihood, unbiased estimates, Cramer-Rao lower bound, Kullback-Leibler information distance, Akaike's information criterion, experiment design, and model validation.

Public libraries are becoming dynamic hubs for learning, civic engagement, and community.

This course will discuss strategies for gathering statistical and descriptive data about public library communities. Learners will identify local partners in education, social services, government agencies, and more.

While conducting real-world investigations, learners will gain deeper insight into the wants and needs of community organizations. This will empower learners to make better management decisions to address those needs, even in libraries with limited budgets.

This course explores how identities, whether of individuals or groups, are produced, maintained, and transformed. Students will be introduced to various theoretical perspectives that deal with identity formation, including constructions of "the normal." We will explore the utility of these perspectives for understanding identity components such as gender, sexual orientation, race, ethnicity, religion, language, social class, and bodily difference. By semester's end students will understand better how an individual can be at once cause and consequence of society, a unique agent of social action as well as a social product.

This course explores how identities, whether of individuals or groups, are produced, maintained, and transformed. Students will be introduced to various theoretical perspectives that deal with identity formation, including constructions of "the normal." We will explore the utility of these perspectives for understanding identity components such as gender, sexual orientation, race, ethnicity, religion, language, social class, and bodily difference. By semester's end students will understand better how an individual can be at once cause and consequence of society, a unique agent of social action as well as a social product.

This course explores how identities, whether of individuals or groups, are produced, maintained, and transformed. Students will be introduced to various theoretical perspectives that deal with identity formation, including constructions of "the normal." We will explore the utility of these perspectives for understanding identity components such as gender, sexual orientation, race, ethnicity, religion, language, social class, and bodily difference. By semester's end students will understand better how an individual can be at once cause and consequence of society, a unique agent of social action as well as a social product.

This course introduces the learner to issues around the use of public space to express identity.

IELTS is the world's most popular English language test for those wanting to study in higher education in an English-speaking country.

This IELTS course will prepare you to take the IELTS Academic tests with confidence. You will have immediate access to over 80 hours of interactive practice materials covering each of the four skills: listening, speaking, reading and writing.

This innovative preparation course has been designed and written by experienced English teaching professionals from The University of Queensland, an IELTS testing centre and one of the world’s leading centres of learning. All of the course writers have extensive experience enabling students to reach their academic IELTS goal of entering a university where English is the primary language.

Each section of this course includes engaging multi-media presentations reviewing key test-taking skills, strategies and techniques. These are accompanied by a wide variety of authentic IELTS-style exercises and interactive activities that provide focused practice of the skills, strategies and techniques that you need to perform at your best.

In the new release of this IELTS preparation course, you will find a number of enhancements to an already-successful formula. The course appears with new videos and improvements to the explanation of answers as well as a number of new and engaging practice activities. Significantly, we have responded to requests from existing users to offer more comprehensive feedback on your writing using several new features.

As the course is self-paced, you can complete all of the course units in sequence, or only select the areas you want to focus on to prepare for the IELTS Academic tests. In completing this course, you will feel fully prepared to complete the IELTS Academic tests.

Students who select Verified enrolment in this course will have access to additional materials provided by the IELTSx course team.

Creativity is an essential skill for the 21st Century that is innate in all people and can be nurtured. We constantly need new and better ideas for almost every aspect of our professional and personal lives. The goal of this course is to help you recognize, develop and act upon the creativity that you already possess.

Ignorance! provides a comprehensive framework for understanding how people think about unknowns, how they deal with them, and even how certain kinds of ignorance are enshrined in cultures and social institutions. We’ll be taking you on a tour through ignorance in all its varieties and guises. Ignorance is everyone’s business. Ignorance is relevant to every discipline and profession, and to everyday life, both at work and at play.

No matter what domain you study or work in, this course will have something to offer to you.

We will explore questions about ignorance such as the following: Where does ignorance come from? How do we impose it on each other, and even on ourselves? And why? We usually think about ignorance as a bad thing, but when can it be preferable not to know something? What uses do people have for ignorance? What roles does ignorance play in social interaction, group relations, institutions, and law? Can ignorance sometimes be a virtue? When can ignorance be good or bad for us? How can we harness the unknown for learning, discovery, and creativity? How can we make good decisions under ignorance?

Your understanding of ignorance will be expanded via online games, discussion forums, opportunities to find out what your own “ignorance profile” is, additional readings, and Wiki materials. There also will be discussion threads specifically for those of you who want to apply understandings about ignorance to complex social and environmental problems. Knowing more about ignorance will help you to manage it and work with it. It also will help you in dealing with the unexpected, with complex problems, and even wicked problems.

“无知！”这门课提供了一个全面的框架以了解人们如何思考未知事物，如何处理未知事物，以及某些无知如何被纳入文化和社会制度。 我们将带你浏览所有种类和伪装下的无知。 无知和每个人都有关，与每一门学科、职业以及日常生活的工作和娱乐都息息相关。

无论你的学习或职业属于什么领域，你都可以从这门课程中得到收获.

我们将探讨有关无知的如下问题：无知从何而来？我们是如何将其强加于彼此甚至是我们自己？这又是为什么？我们通常认为无知是一件坏事，但是在哪些时候不知道太多反而是一件好事呢？人们如何利用无知？无知在社会互动、团体关系、制度和法律中扮演什么角色？无知有可能在某些时候成为一种美德吗？无知在什么时候对我们是好事，什么时候是坏事？我们如何利用未知事物来促进学习、新发现和创造力？ 我们如何在无知的情况下做出好的决定呢？

你对无知的理解将通过网络游戏、论坛、探索自己的“无知个人资料”的机会、附加阅读和维基资料获得扩展。课程里还将有专门针对那些希望将无知理解应用于复杂的社会和环境问题的讨论组。 深入了解无知将有助你管理和对待它。 它也将帮助您处理意想不到的，复杂的，甚至是邪恶的问题。