Online courses directory (417)

Elements and Atoms. Introduction to the atom. Elements and Atoms. Introduction to the atom.

Role of Phagocytes in Innate or Nonspecific Immunity. Types of immune responses: Innate and Adaptive. Humoral vs. Cell-Mediated. B Lymphocytes (B cells). Professional Antigen Presenting Cells (APC) and MHC II complexes. Helper T Cells. Cytotoxic T Cells. Review of B cells, CD4+ T cells and CD8+ T cells. Inflammatory Response. Role of Phagocytes in Innate or Nonspecific Immunity. Types of immune responses: Innate and Adaptive. Humoral vs. Cell-Mediated. B Lymphocytes (B cells). Professional Antigen Presenting Cells (APC) and MHC II complexes. Helper T Cells. Cytotoxic T Cells. Review of B cells, CD4+ T cells and CD8+ T cells. Inflammatory Response.

States of Matter. States of Matter Follow-Up. Specific Heat, Heat of Fusion and Vaporization. Chilling Water Problem. Phase Diagrams. Van Der Waals Forces. Covalent Networks, Metallic, and Ionic Crystals. Vapor Pressure. Suspensions, Colloids and Solutions. Solubility. Boiling Point Elevation and Freezing Point Suppression. Change of State Example. States of Matter. States of Matter Follow-Up. Specific Heat, Heat of Fusion and Vaporization. Chilling Water Problem. Phase Diagrams. Van Der Waals Forces. Covalent Networks, Metallic, and Ionic Crystals. Vapor Pressure. Suspensions, Colloids and Solutions. Solubility. Boiling Point Elevation and Freezing Point Suppression. Change of State Example.

Molecular and Empirical Formulas. The Mole and Avogadro's Number. Formula from Mass Composition. Another mass composition problem. Balancing Chemical Equations. Stoichiometry. Stoichiometry Example Problem 1. Stoichiometry Example Problem 2. Stoichiometry: Limiting Reagent. Limiting Reactant Example Problem 1. Spectrophotometry Introduction. Spectrophotometry Example. Molecular and Empirical Formulas. The Mole and Avogadro's Number. Formula from Mass Composition. Another mass composition problem. Balancing Chemical Equations. Stoichiometry. Stoichiometry Example Problem 1. Stoichiometry Example Problem 2. Stoichiometry: Limiting Reagent. Limiting Reactant Example Problem 1. Spectrophotometry Introduction. Spectrophotometry Example.

Introduction to Oxidation States. More on Oxidation States. Hydrogen Peroxide Correction. Redox Reactions. Galvanic Cells. Introduction to Oxidation States. More on Oxidation States. Hydrogen Peroxide Correction. Redox Reactions. Galvanic Cells.

In this course you will develop and enhance your ability to think critically, assess information and develop reasoned arguments in the context of the global challenges facing society today.

Introduction to Evolution and Natural Selection. Ape Clarification. Intelligent Design and Evolution. Evolution Clarification. Natural Selection and the Owl Butterfly. DNA. Variation in a Species. Introduction to Evolution and Natural Selection. Ape Clarification. Intelligent Design and Evolution. Evolution Clarification. Natural Selection and the Owl Butterfly. DNA. Variation in a Species.

This course will survey fundamental principles of cognitive and behavioral neurology. The emphasis of the course will be on the neural mechanisms underlying aspects of cognition and on diseases that affect intellect and behavior. No prior background in neurology, medicine, or neuroscience is required.

Diffusion and Osmosis. Parts of a cell. Chromosomes, Chromatids, Chromatin, etc.. Mitosis, Meiosis and Sexual Reproduction. Phases of Mitosis. Phases of Meiosis. Embryonic Stem Cells. Cancer. Diffusion and Osmosis. Parts of a cell. Chromosomes, Chromatids, Chromatin, etc.. Mitosis, Meiosis and Sexual Reproduction. Phases of Mitosis. Phases of Meiosis. Embryonic Stem Cells. Cancer.

The neuroscience of drugs for therapy, for prevention, and for recreation.  Drug addiction and drug abuse. You’ll learn the prospects for new generations of medications in neurology, psychiatry, aging, and treatment of substance abuse.

Through this class you should be able to explain basic concepts in cellular and molecular biology using correct terminology, as well as develop critical thinking and problem-solving skills that can be applied to all of your studies of biology.

Orbitals. More on orbitals and electron configuration. Electron configurations. Electron configurations 2. Valence Electrons. Orbitals. More on orbitals and electron configuration. Electron configurations. Electron configurations 2. Valence Electrons.

Ideal Gas Equation: PV=nRT. Ideal Gas Equation Example 1. Ideal Gas Equation Example 2. Ideal Gas Equation Example 3. Ideal Gas Equation Example 4. Partial Pressure. Vapor Pressure Example. Ideal Gas Equation: PV=nRT. Ideal Gas Equation Example 1. Ideal Gas Equation Example 2. Ideal Gas Equation Example 3. Ideal Gas Equation Example 4. Partial Pressure. Vapor Pressure Example.

If chemistry is the science of stuff, then analytical chemistry answers the question: what is it? And how much of it do you have? This course teaches how to do this with instrumental analysis!

Explore the structure and function of the human central nervous system. Learn why knowledge of human neuroanatomy, neurophysiology, neural plasticity, and new discovery in the brain sciences matters for clinical practice in the health professions.

This course will discuss HIV/AIDS in the US and around the world including its history, science, and culture as well as developments in behavioral and biomedical prevention, experimental AIDS vaccines, and clinical care issues. The course will also include a discussion of the populations that are particularly vulnerable to HIV/AIDS and a look at future challenges facing people infected and affected by the AIDS pandemic.

This seven week course will explore nutrition concepts that take center stage in mainstream media outlets and become conversation topics among consumers interested in food choice as it relates to optimal health and physical performance.

Taxonomy and the Tree of Life. Species. Bacteria. Viruses. Human Prehistory 101: Prologue. Human Prehistory 101 Part 1: Out of (Eastern) Africa. Human Prehistory 101 Part 2: Weathering The Storm. Human Prehistory 101 Part 3: Agriculture Rocks Our World. Human Prehistory 101: Epilogue. Taxonomy and the Tree of Life. Species. Bacteria. Viruses. Human Prehistory 101: Prologue. Human Prehistory 101 Part 1: Out of (Eastern) Africa. Human Prehistory 101 Part 2: Weathering The Storm. Human Prehistory 101 Part 3: Agriculture Rocks Our World. Human Prehistory 101: Epilogue.

Learn about the physiological responses to acute and chronic exercise and their relevance for athletic performance.

This course will cover many aspects of equine nutrition ranging from anatomy and physiology of the gastrointestinal tract to dietary management of horses/ponies affected with nutrition-related disorders. This is course is designed for self-directed study with minimal tutor input, and as such emphasis is placed upon peer discussions of the topics presented in each section of the course. This course is not designed to have a large amount of tutor input as this is an open access course that attracts tens of thousands of participants. However, tutors will endeavour to answer the main queries relating to the understanding of the lecture materials and to provide a summary of the key questions raised in each of the weekly topics and clarification of any misunderstandings.