This video explains how to prepare solutions in certain concentration using alligation method

In this course we will explore the new emerging field of pathogen-induced chronic diseases. Work in this field has redefined the causes of some major disorders, such as ulcers. By reading the primary research literature we will learn about the molecular mechanisms through which pathogens cause disease. The diseases that we cover will be introduced with a short patient case study. We will discuss the bacterium Helicobacter pylori and gastric disease, HPV and cervical cancer, hepatitis C virus and liver disease, Epstein-Barr virus and lymphoma, Cytomegalovirus and atherosclerosis, as well as diabetes and multiple sclerosis. We will study technical advances in the fight against microbes and explore future directions for new treatment strategies of chronic infections and inflammation. This course is one of many Advanced Undergraduate Seminars offered by the Biology Department at MIT. These seminars are tailored for students with an interest in using primary research literature to discuss and learn about current biological research in a highly interactive setting. Many instructors of the Advanced Undergraduate Seminars are postdoctoral scientists with a strong interest in teaching.

The "Digital Lab Techniques Manual" is a series of videos designed to help you prepare for your chemistry laboratory class. Each video provides a detailed demonstration of a common laboratory technique, as well as helpful tips and information. These videos are meant to supplement, and not replace, your lab manual and assigned reading. In fact, you will most benefit from watching the videos if you have already read the appropriate background information. To be a great experimentalist, you must understand both theory and technique! If you have questions about what you see, make sure to ask your TA or your instructor. The experiments described in these materials are potentially hazardous and require a high level of safety training, special facilities and equipment, and supervision by appropriate individuals. You bear the sole responsibility, liability, and risk for the implementation of such safety procedures and measures. MIT shall have no responsibility, liability, ...

In this lab, the student will review the anatomy and histology of the organs by using images of models, microscopic slides, and videos on cat and sheep dissections. The student will then be asked to assess his or her knowledge, which eventually can be put to practical or experimental use. Upon successful completion of this lab supplement, students will be able to: use anatomical terminology correctly in the laboratory; using a compound light microscope, identify different tissues and describe a human organ where that tissue can be found; describe the major features and functions of human skin; identify and name human bones and their major features and differentiate, microscopically and grossly, between compact and spongy bone; name and describe the functions of the human brain's major structures; describe the anatomical and functional differences between the dorsal and ventral roots of spinal nerves and the dorsal and ventral horns of the spinal cord's grey matter; describe the structure of an intervertebral disc; identify, microscopically and grossly, the differences between the three types of muscle and describe the respective structures and locations of different muscle tissues; identify and name the structures of the human eye and the human ear; describe the major similarities and differences in the structure of an artery and a vein; describe the flow of blood through the heart and identify all major vessels, chambers, and valves; identify and name, histologically and anatomically, the major components of the respiratory system, the digestive system, and the male and female urinary systems; identify and name, histologically and anatomically, the major components of male and female reproductive systems. (Biology 302 Laboratory)

In this lab, the student will review the physiology of the organ systems by using images of models, experiments, and videos. Then the student will be asked to assess his or her knowledge, which can eventually be put to practical or experimental use. Upon successful completion of this lab supplement, students will be able to: describe techniques used to measure the function of organ systems; relate diagnostic tools, such as those used to measure ECG, EEG, and EMG activity, and those used in spirometry and urinalysis tests, to the physiological processes; relate diagnostic tests, such as the patellar and plantar reflex tests, to physiological processes; perform laboratory observations and experiments; collect, analyze, and interpret data; and form conclusions. (Biology 304 Laboratory)

This lab course supplements ĺÎĺĺĺŤIntroduction to Evolutionary Biology and EcologyĄ_ĺĺö. Although it does not replicate a true lab experience, it does encourage greater familiarity with scientific thinking and techniques, and will enable exploration of some key principles of evolutionary biology and ecology. This lab supplement focuses on visual understanding, application, and practical use of knowledge. In each unit, the student will work through tutorials related to important scientific concepts and then will be asked to think creatively about how that knowledge can be put to practical or experimental use. Upon successful completion of this lab supplement, the student will be able to: Display an understanding of Mendelian inheritance as applied to organisms in virtual experiments; Describe the process of natural selection and understand how it will alter populations over generations and under a variety of selection pressures; Understand how the process of speciation is affected by isolation and selection pressures; Understand predator-prey dynamics under a variety of ecological conditions; Distinguish between biomes in terms of their structure/climates as well as the types and diversity of organisms that inhabit them. (Biology 102 Laboratory)

Traditional lab tests for disease diagnosis can be too expensive and cumbersome for the regions most in need. George Whitesides' ingenious answer is a foolproof tool that can be manufactured at virtually zero cost.