Online courses directory (10358)

Introduction to Biology is a free introductory course on the science of the living world. These lessons teach learners of all ages about organisms, cells, nutrients (carbohydrates, proteins, vitamins and minerals) and the process of digestion. This free online course is an ideal study-aid and complement to classes for second level students and is valuable to parents who wish to help their children with their studies.

This physics course covers the physical principles of major in vivo bio-imaging modalities.

This course will focus on magnetic resonance imaging, also known as an MRI. In the first part of the course, the dynamic of spins in a magnetic field is described, leading to the essential notions of magnetic resonance (MR), excitation and relaxation. We will also discuss the basic mechanisms of image reconstruction, MR spectroscopy and functional MRI.

You will learn how existing physical principles transcend into bio-imaging and establish an important link into life sciences, illustrating the contributions physics can make to life sciences. Practical examples will be shown to illustrate the respective imaging modality, its use, premise and limitations, and biological safety will be touched upon.

During this course, you will develop a good understanding of the mechanisms leading to tissue contrast of the bio-imaging modalities covered in this course, including the inner workings of the scanner and how they define the range of possible biomedical applications. You will be able to judge which imaging modality is adequate for specific life science needs and to understand the limits and promises of each modality.

This physics course covers the physical principles of major in vivo bio-imaging modalities and the different imaging techniques.

After a short study of ultrasound imaging, you will learn about the different X-ray imaging techniques. The understanding of the interaction of X-rays with tissue will lead to the study of three different techniques:

• Computed Tomography (CT)
• Emission Tomography
• Positron Emission Tomography (PET)

This course shows how existing physical principles transcend into bio-imaging and establish an important link into life sciences, illustrating the contributions physics can make to life sciences. Practical examples will be shown to illustrate the respective imaging modality, its use, premise and limitations, and biological safety will be touched upon.

During this course, you will develop a good understanding of the mechanisms leading to tissue contrast of the bio-imaging modalities covered in this course, including the inner workings of the scanner and how they define the range of possible biomedical applications. You will be able to judge which imaging modality is adequate for specific life science needs and to understand the limits and promises of each modality.

To learn more about biomedical imaging, join us in the second part of this course Biomedical Imaging: Magnetic Resonance Imaging (MRI).

This course reviews important principles found in business law. These principles include details on sole proprietorship, general partnerships, limited partnerships and incorporations. This course explains principles of business law in a clear and easy to understand way. The course also covers topics such as legal requirements, legal recommendations, financial status, taxation, and liability related to these principles. This free online course will be of interest to business professionals and students of law who would like a greater knowledge and understanding of laws relating to business and commerce.<br />

Cellular respiration is a key concept to understand in biology as it involves obtaining energy from the nutrients organisms eat and the removal of waste products. It is a key biological process which is vital to all life forms, including humans. In this free online biology course you will learn about the chemical makeup of the energy that is stored, generally referred to as adenosine triphosphate (ATP), how this molecule works and how it is used in the respiratory process. You will also learn about glucose as it is the main source of energy, and the stages involved in cellular respiration from glycolysis through the Kerb’s cycle to the electron transport chain. You will learn how molecules are split to release energy through oxidization to produce ATP and waste products in the form of water and carbon dioxide. This free online biology course will be of great interest to all students who wish to pursue a career in sciences such as biology, biochemistry, medicine, pharmacy or the individual learner who simply wants to learn more about how we convert our food into energy.<br />

<p>This free online course offers a simple introduction to basic chemistry and is ideal as a study aid for secondary school students or anyone interested in learning the basics of chemistry. </p><br /> <p>Topics covered include the periodic table, atoms and molecules, the pH scale and experimental design and techniques. </p>

This free online course was developed in response to the emerging importance of children and youth in international development policy. The course will give the learner a comprehensive understanding and knowledge of development from the early years right through to adolescence. The course will deal with questions such as: What makes young people tick? What shapes and influences a child's development? How can the adults who work with children support them more effectively? After completion of the course, learners will be familiar with the major theories on the development of children. This course will be of great interest to professionals already in health, care or development professions, to learners who are planning a career that centres on youth, and will also be beneficial to parents, carers, and learners who are interested in studying issues related to children and adolescents.<br />

This course will provide an introduction to the scientific, statistical, and ethical aspects of clinical trials research. Topics include the design, implementation, and analysis of trials, including first-in-human studies (dose-finding, safety, proof of concept, and Phase I), Phase II, Phase III, and Phase IV studies. All aspects of the development of a study protocol will be addressed, including criteria for the selection of participants, treatments, and endpoints, randomization procedures, sample size determination, data analysis, and study interpretation. The ethical issues that arise at each phase of therapy development will be explored.

This course contains 12 modules. The modules will be released Monday of each week, with the exception of some holiday weeks. Most students should plan to spend 4 – 6 hours on each module. Students will have until February 14, 2014 to earn a HarvardX certificate.

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

HarvardX requires individuals who enroll in its courses on edX to abide by the terms of the edX honor code : https://www.edx.org/edx-terms-service. 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.

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 : http://harvardx.harvard.edu/research-statement to learn more.

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 : https://www.edx.org/contact-us.

The increasing use of the Web in schools is allowing teachers and students go beyond the boundaries of the physical classroom and engage in online collaborative learning. Collaborize Classroom is one such online collaborative platform that focuses on collaborative elements such as structured online discussions between students, online brainstorming, peer feedback and online surveys. It also assists the teacher in monitoring and encouraging students in terms of their participation. This free online course about Collaborize Classroom will take you through the features from setting up a discussion topic, using the feedback process through to the sharing of content and comments. You will also learn how to add various types of documents, including Microsoft Office documents, pictures, videos and PDFs. General Website management tasks are also explained, such as accessing the discussions to sharing properties and moderator roles. This course will be of great interest to teachers and trainers who want to augment and enhance classroom-based learning, and engage their students by using online collaborative learning methods and techniques.<br />

This class covers the history of 20th century art and design from the perspective of the technologist. Methods for visual analysis, oral critique, and digital expression are introduced. Class projects this term use the OLPC XO (One Laptop Per Child) laptop, Csound and Python software.

The "Fundamentals of Computing" series concludes with a two-week course that reviews the series material and whose primary assessment is a cumulative "capstone" exam.

This free Business Skills course introduces the learner to the world of corporate management. Using an interactive presentation style, the lessons go through the characteristics of large businesses, management functions within a business, and the corporate business environment. This free management course also covers large business structures, management styles, and approaches to managing change in a large, dynamic organisation. The course is a useful introduction to those who wish to learn and understand more about how large businesses and organisations operate.<br />

This free Business Skills course introduces the learner to the world of corporate management. Using an interactive presentation style, the lessons go through the characteristics of large businesses, management functions within a business, and the corporate business environment.<br /><br /><br />This free management course also covers large business structures, management styles, and approaches to managing change in a large, dynamic organisation. <br /><br /><br />The course is a useful introduction to those who wish to learn and understand more about how large businesses and organisations operate.<br />

In this class you will learn the basic principles and tools used to process images and videos, and how to apply them in solving practical problems of commercial and scientific interests.