Online courses directory (1728)

Ready to earn a professional certificate and stand out in your field?

If you’ve gained a clear, comprehensive understanding of the concepts and theories, your next step is to complete the Mortgage Backed Securities Professional Certificate Examination from the New York Institute of Finance.

The exam comprises 70 questions, timed at two hours. To qualify for the certificate, learners must receive a grade of at least 70% or better.

Prerequisite for this exam:

Earn a Verified Certificate in both parts of the Mortgage Backed Securities program from NYIF:

• Mortgage Backed Securities (MBS): Part I
• Mortgage Backed Securities (MBS): Part II

You love music. You listen to music all the time. Maybe you sing, play an instrument, or compose music. You don’t need to have musical talent to use music to enhance your well being, and even your health.

Learn simple techniques to enrich your mind, body, and spirit through music. The methods can be applied in your daily life, particularly when you are feeling down or stressed out. Developed by a board-certified music therapist and a vocalist/pianist/composer/recording artist specializing in Indian music, these strategies combine science with the wisdom of Eastern philosophy.

In the course, discover how to unlock your creativity. You will learn not only how to listen to music in a new way, but also how to listen to the impact that music has on you. You will find out how to care for yourself by practicing coping techniques that are supported by music that is special to you.

Technology has greatly altered how we write, listen to and enjoy music. This music course will show you how to apply new technologies to your own creative practice. Music Technology Foundations draws on Adelaide’s world-class pioneering expertise in making electronic music, to provide a great foundation to a career in music and to enable any learner to use technology in creative ways.

In Music Technology Foundations, you’ll learn about the core principles of music technology, including sound, audio, MIDI, effects and sequencing. Each week, you’ll complete creative practical tasks in freeware and browser based apps, and you’ll share the music you make with the course instructors and fellow learners. This practical work is underpinned with historical context and essential theory, so that you can gain even greater insight into your music.

How do computers work? What do computer scientists do?  What does it take to make a computer or a computer program work? We answer these questions and more with MyCS: Computer Science for Beginners.
 
We believe that anyone can succeed in and enjoy computer science. This course is an early introduction to CS, designed for anyone who's completely new to the field. It explores a combination of the basic principles of how computers work and how we can use them to solve interesting problems and create amazing things. Lessons alternate between general exercises and assignments in Scratch, which offer a chance to both practice some basic concepts of computer programming and explore the many cool, creative, and useful applications of CS.
 
You don't need any CS or programming background to do this course - just a bit of basic math and a lot of creative thinking. The course is intended especially for middle school students and their teachers, but is good for learners of all ages.
 
This material is based upon work supported by the National Science Foundation under Grant No. 1240939. Any opinions, findings and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation (NSF).

This engineering course is an introduction to photonic materials and devices structured on the wavelength scale. Generally, these systems will be characterized as having critical dimensions at the nanometer scale. These can include nanophotonic, plasmonic, and metamaterial components and systems.

This course may be useful for advanced undergraduates with the prerequisites listed below; graduate students interested in incorporating these techniques into their thesis research; and practicing scientists and engineers developing new experiments or products based on these ideas.

The transistor has been called the greatest invention of the 20^th century – it enables the electronics systems that have shaped the world we live in. Today’s nanotransistors are a high volume, high impact success of the nanotechnology revolution. If you are interested in understanding how this scientifically interesting and technologically important nano-device operates, this course is for you!

This nanotechnology course provides a simple, conceptual framework for understanding the essential physics of nanoscale transistors.  It assumes only a basic background in semiconductor physics and provides an opportunity to learn how some of the fascinating new discoveries about the flow of electrons at the nanoscale plays out in the context of a practical device.

The course is divided into four units:

• Transistors fundamentals
• Transistor electrostatics
• Ballistic MOSFETs
• Transmission theory of the MOSFET

The first two units provide an introduction for students with no background in transistors or a quick review for those familiar with transistors.  The third unit treats the ballistic transistor in which electrons move without resistance (in the traditional sense). The last unit uses that Landauer Approach to electron transport, which was developed to understand some striking experiments in nanophysics, to develop an understanding of how electrons flow in modern nanotransistors.  This short course describes a way of understanding MOSFETs that is much more suitable than traditional approaches when the channel lengths are of nanoscale dimensions. Surprisingly, the final result looks much like the traditional, textbook, MOSFET model, but the parameters in the equations have simple, clear interpretations at the nanoscale.

My objective for this course is to provide students with an understanding of the essential physics of nanoscale transistors as well as some of the practical technological considerations and fundamental limits. The goal is to do this in a way that is broadly accessible to students with only a very basic knowledge of semiconductor physics and electronic circuits. The course is designed for anyone seeking a sound, physical, but simple understanding of how nanoscale transistors operate. The course should be useful for advanced undergraduates, beginning graduate students, as well as researchers and practicing engineers and scientists.

This course is the latest in a series offered by the nanoHUB-U project which is jointly funded by Purdue and NSF with the goal of transcending disciplines through short courses accessible to students in any branch of science or engineering. These courses focus on cutting-edge topics distilled into short lectures with quizzes and practice exams.

No region on Earth is immune from natural disasters. As we gain scientific understanding into the causes and nature of such phenomena, we become better able to mitigate the effects of disasters. Yet as the world's population continues to grow, an increasingly large number of people are at risk.

This science course examines different types of natural disasters and our ability, or inability, to control and predict such events. You will gain an appreciation of natural disasters beyond the newspaper headlines, and will better understand how the effects of disasters can be reduced.

There is an urgent need for people from all walks of life to better understand the scientific principles behind the occurrence of natural disasters:

• City planners need to know where, and where not, to site buildings.
• Politicians need to make scientifically informed decisions.
• Emergency management officials need to understand the nature of a potential disaster and ways to mitigate such an event.
• Journalists need to report scientifically accurate information.

Learner Testimonial:

“Professors Stix and Gyakum have created and presented an engaging course, and have helped in my quest for a better understanding of the world around me.” – Previous Student

If you are interested in learning programming, but find pure programming courses not very exciting, this course is for you.

Instead of just learning programming principles outside of any context, you will learn JavaScript programming by implementing key biological concepts in code so they can run in your browser.

If you know a little (or a lot of) programming already, but want to learn more about the rules that govern life without having to pick up a traditional academic textbook, this course will also be of interest to you. You will learn some key ideas that form the basis of modern biology, from population genetics to evolutionary biology to infectious disease spread.

No prior programming knowledge needed.

In this course, you will examine the various areas of network security including intrusion detection, evidence collection and defense against cyber attacks.

The issues and facilities available to both the intruder and data network administrator will also be examined to illustrate their effect.

You will learn the principles and concepts of wired and wireless data network security. You will be guided through a series of laboratories and experiments in order to explore various mechanisms for securing data networks including physical layer mechanisms, filters, applications and encryption.

You will analyze attack/defend scenarios and determine the effectiveness of particular defense deployments against attacks.

This course is a part of the RITx Cybersecurity MicroMasters Program.

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.

Week 1: A first simple neuron model

Week 2:  Hodgkin-Huxley models and biophysical modeling

Week 3: Two-dimensional models and phase plane analysis

Week 4: Two-dimensional models (cont.)/ Dendrites

Week 5: Variability of spike trains and the neural code

Week 6: Noise models, noisy neurons and coding

Week 7: Estimating neuron models for coding and decoding

Before your course starts, try the new edX Demo where you can explore the fun, interactive learning environment and virtual labs. Learn more.

Did you know that there are more than 270 free trade agreements in the world and that they cover half of global trade? Latin American and Caribbean countries take part in 70 such agreements, covering 70% of intra-regional trade.

What do you need to know about these agreements? What opportunities, challenges and implications do they have for people, businesses, and countries? What can be done to maximize their benefits?

In this course you will analyze in depth the provisions of regional and multilateral trade agreements and why countries in Latin America and the Caribbean still face important obstacles to fully take advantage of them. You will learn about new trends, emerging issues and dynamics, and possible future scenarios in trade agreements from renowned academics, researchers, and trade policy makers.

This course is aimed at those interested in learning the practical aspects of how trade agreements work, and how to make the most of them.

Explore the complexity and challenges of infrastructure systems (Transport, Energy, IT/Telecom and Water) in the 21st century.

S3: Smart, secure and sustainable. The potential role and impact of smart grids, eco-cities, flexible infrastructures and ICT

Phenomena as diverse as the motion of the planets, the spread of a disease, and the oscillations of a suspension bridge are governed by differential equations. MATH226x is an introduction to the mathematical theory of ordinary differential equations. This course follows a modern dynamical systems approach to the subject. In particular, equations are analyzed using qualitative, numerical, and if possible, symbolic techniques.

MATH226 is essentially the edX equivalent of MA226, a one-semester course in ordinary differential equations taken by more than 500 students per year at Boston University. It is divided into three parts. MATH226.3x is the last part.

For additional information on obtaining credit through the ACE Alternative Credit Project, please visit here.

This engineering course is designed to Introduce students to a range of concepts, ideas and models used in nuclear reactor physics. This course will focus on the physical theory of reactors and methods of experimental studies of the neutron field. This course course is based on the course “Neutron transport theory” which has been taught at the National Research Nuclear University “MEPhI” for the past 20 years.

¿Sabías que hay más de 270 acuerdos comerciales en el mundo que cubren la mitad del comercio mundial? Los países de América Latina y el Caribe participan en 70 tratados que cubren el 70% del comercio intrarregional.

¿Qué necesitas saber sobre estos acuerdos? ¿Qué oportunidades, desafíos e implicaciones tienen para las personas, empresas y gobiernos? ¿Qué puedes hacer para aprovecharlos al máximo?

En este curso analizarás en profundidad las disposiciones de los acuerdos comerciales regionales y multilaterales y por qué los países de América Latina enfrentan aún importantes obstáculos para aprovecharlos plenamente. Aprenderás de la mano de destacados académicos, investigadores, responsables y gestores de política comercial sobre nuevas tendencias, temas emergentes, dinámicas y posibles escenarios futuros.

Este curso va dirigido a todos los interesados en el comercio y la integración en América Latina y el Caribe y en conocer los aspectos prácticos y más candentes de cómo funcionan los tratados comerciales y cómo aprovecharlos mejor.

Every day reports of food scandals and recalls are published. One day it’s scary bacteria in meat, and another day it’s dangerous pesticides in fruits. According to some, meat needs to be cooked well to prevent food-borne illness while others warn not to heat food to prevent the formation of poisonous substances.

Many consumers worry about the conflicting and confusing messages about food hazards

This nutrition and health course will teach you about the hazards associated with food and give you the tools to assess and quantify the dangers they can present. You will learn the effects of food processing, the shared responsibility in the food chain and the prevention of food poisoning/intoxication. After this course, you will be able to differentiate what is a food myth vs. an actual risk. Finally, you will gain a contemporary view of how different risks can be weighed in a scientific way.

This course is part of the Nutrition: Healthy Food for Better Living XSeries.

Food plays a central role in our society but few people actually understand what it does to our bodies. Learn more about nutrition and how our diet profoundly impacts our current and future health.This introductory nutrition course addresses the relationship between nutrition and human health with a focus on health problems related to overnutrition.

In this course, Professor Sander Kersten from Wageningen University will introduce you to the chemistry of the three macronutrients fat, carbohydrate and protein. You will learn how macronutrients are absorbed, stored, and metabolized for energy, and you will gain a contemporary view of how different types of fats, carbohydrates and proteins affect human health. Moreover, NUTR101x will cover energy homeostasis and the regulation of bodyweight, and provides ample coverage of the topic of obesity. Finally, the course will make you familiar with nutritional research and research methodologies.

No previous knowledge needed. By completing this course, you will have the necessary tools to better weigh and interpret the information overload about nutrition and health.

NUTR101x is part of the Nutrition - Food for Health XSeries of Wageningen University. To continue learning, check out Nutrition and Health Part 2, which focuses on malnutrition. 

Food plays a central role in our society but few people actually understand what it does to our bodies. Learn more about nutrition and how our diet  profoundly impacts our current and future health. The course will focus on undernutrition and micronutrients. The team of Professors from Wageningen University will introduce you to vitamins and minerals and their role in human health.

The course will address the micronutrient content of foods and will cover the role of the various micronutrients in the body.  In addition, NUTR102x will discuss how suboptimal nutrition may affect human health and will pay particular attention to global hunger and malnutrition.

No previous knowledge needed but course adds to knowledge from NUTR101x. Join us to learn more about nutrition and health.

NUTR102x is part of the Nutrition-Food for Health xSeries of Wageningen University.