Online courses directory (19947)

Launch a great small business website site, reach your audience, produce great content with this awesome course

Opioids are part of a drug class that includes the illegal drug heroin as well as powerful pain relievers, such as oxycodone, hydrocodone, codeine, morphine, fentanyl, and many others. In 2015 more than 33,000 people died from overdoses involving opioids. Every day in the United States more than 1,000 people are treated in emergency departments for not using prescription opioids as directed. Drug overdose is now the leading cause of accidental death in the U.S., and opioid addiction is driving this epidemic.

This course challenges preconceptions about addiction and about who can become addicted to opioids. Our main goals are to reduce the stigma that exists around addiction, help prevent overdose deaths and encourage people to learn about the multiple pathways to treatment. You will learn about these topics from a variety of medical experts and hear from people who have experienced addiction themselves, or who have lost a family member to an overdose.

This course is available for Continuing Education credit. Enroll in the course to learn more about options for earning credit. Currently credits are available for:

Honor Code

HarvardX requires individuals who enroll in its courses on edX to abide by the terms of the edX honor code. HarvardX will take appropriate corrective action in response to violations of the edX honor code, which may include dismissal from the HarvardX course; revocation of any certificates received for the HarvardX course; or other remedies as circumstances warrant. No refunds will be issued in the case of corrective action for such violations. Enrollees who are taking HarvardX courses as part of another program will also be governed by the academic policies of those programs.

Research statement

HarvardX pursues the science of learning. By registering as an online learner in an HX course, you will also participate in research about learning. Read our research statement to learn more.

Nondiscrimination/anti-harassment statement

Harvard University and HarvardX are committed to maintaining a safe and healthy educational and work environment in which no member of the community is excluded from participation in, denied the benefits of, or subjected to discrimination or harassment in our program. All members of the HarvardX community are expected to abide by Harvard policies on nondiscrimination, including sexual harassment, and the edX Terms of Service. If you have any questions or concerns, please contact harvardx@harvard.edu and/or report your experience through the edX contact form.

Fostering Optimism & Resilience in Your Child

Michael Dell, CEO and founder of Dell, Inc., describes how the idea for Dell, Inc. originated. Dell was fascinated by th

Got an idea for a website or mobile app and need someone to build it for you? Learn all the steps to get that done!

Build your business quicker, easier and with less money using proven outsourcing methods

A time management course designed to organize authors and allow them more time for writing and publishing.

Learn exactly what a passive income stream is and how to build a marketing funnel that produces profits!

Learn how to invest and earn great returns with peer to peer lending

The ultimate step by step exercise and nutrition guide to creating the butt of your dreams!

Absolutely the best golf videos ever made, period. 99% of golf instruction is utter nonsense.

Become a Pro in WordPress with this step-by-step training for beginners covering all from basic to advanced concepts.

How to live a long, healthy, disease free life with maximum energy!

Go from import to export in just 6 easy and time saving steps.

In this course, experimental approaches to the study of hearing and deafness are presented through lectures, laboratory exercises and discussions of the primary literature on the auditory periphery. Topics include inner-ear development, functional anatomy of the inner ear, cochlear mechanics and micromechanics, mechano-electric transduction by hair cells, outer hair cells' electromotility and the cochlear amplifier, otoacoustic emissions, synaptic transmission, stimulus coding in auditory nerve responses, efferent control of cochlear function, damage and repair of hair-cell organs, and sensorineural hearing loss.

A self-paced step-by-step video instruction series designed to help you understand, define and leverage your brand.

Adobe Lightroom 5 and Adobe Photoshop CC: Learn by Video

Polymer-based electronic devices are emerging in next-generation applications that range from advanced display designs to real-time biomedical monitoring. After ~30 years since the first report of a complete organic electronic device (i.e., the organic light-emitting diode), the polymer electronics community has reached a point where the fundamental knowledge of these unique semiconductors has allowed their utilization in key flexible and stretchable electronic applications that have been, or soon will be, commercialized.

In this course, you will gain an understanding of the basic principles and physics of these materials -- which operate in a manner that is distinctly different than traditional (e.g., silicon-based) semiconductors -- and quickly come up to speed in a paradigm-altering field.

In particular, this course will focus on the nanoscale phenomena regarding the physics of semiconducting polymers. This includes how molecular architecture impacts nanoscale structure (e.g., crystalline texture), optical properties, and electronic properties. You will learn to design new materials, consider structure/processing windows, and develop fundamental concepts regarding the physics of charged species in polymer electronics through participation in this course.

This course is designed to give you the scientific understanding you need to answer questions like:

• How much energy can we really get from wind?
• How does a solar photovoltaic work?
• What is an OTEC (Ocean Thermal Energy Converter) and how does it work?
• What is the physics behind global warming?
• What makes engines efficient?
• How does a nuclear reactor work, and what are the realistic hazards?

The course is designed for MIT sophomores, juniors, and seniors who want to understand the fundamental laws and physical processes that govern the sources, extraction, transmission, storage, degradation, and end uses of energy.

Learn to play your favourite songs on piano within 1 day, without any prior knowledge of playing music