1.3.2 β pleated sheets
In this unit we explore how proteins are the 'doers' of the cell. They are huge in number and variety and diverse in structure and function, serving both the structural building blocks and the functional machinery of the cell. Just about every process in every cell requires specific proteins. The basic principles of protein structure and function which are reviewed in this unit are crucial to understanding how proteins perform their various roles.
1.3.1 Helices
In this unit we explore how proteins are the 'doers' of the cell. They are huge in number and variety and diverse in structure and function, serving both the structural building blocks and the functional machinery of the cell. Just about every process in every cell requires specific proteins. The basic principles of protein structure and function which are reviewed in this unit are crucial to understanding how proteins perform their various roles.
Introduction
In this unit we explore how proteins are the 'doers' of the cell. They are huge in number and variety and diverse in structure and function, serving both the structural building blocks and the functional machinery of the cell. Just about every process in every cell requires specific proteins. The basic principles of protein structure and function which are reviewed in this unit are crucial to understanding how proteins perform their various roles.
Survey on opinions from national bioethics committees or similar bodies, public debate and national
The European Commission, DG Research (Directorate E: Biotechnology, Agriculture and Food) devised a survey during the Spring 2001 in order to compile opinion-based data from national bioethics committees and current national legislation in relation to human embryonic stem cell research. The data would be used to structure an informative debate on stem cells across Europe. The survey has been updated regularly in accordance with the continual monitoring of the societal dialogue, the ethical consi
2010 Kohn Lecture Series - Cell cycle control
2010 Kohn Lecture Series - Cell cycle control
DNA Repair
3-D color animation showing how damage to a nucleotide is repaired by the cell. 43 sec.
How To Isolate, Study and Use Genes 2 Fall 2007
How To Isolate, Study and Use Genes 2. From Bio 1A: General Biology lecture - Fall 2007. A general introduction to cell structure and function, molecular and organism genetics, animal development, form and function. Closed Captioned webcast available.
Acknowledgements
This unit helps you understand the properties of nucleotides and how they contribute to secondary and tertiary structures of nucleic acids at the molecular level. You will learn about the different composition and roles of nucleic acids in the cell, their interactions with each other and the use of ribozymes, aptamers, antisense and hybridization as tools in molecular research. The unit covers the function of DNA packaging within the cell, the interactions between the DNA double helix and the nu
Nanoscale Engineering for High Performance Solar Cells
How much energy does it take to turn on a lightbulb? Way too much in the U.S., where 22% of all electricity gets channeled into illuminating homes, businesses and thoroughfares. Vladimir Bulovic wants to end the exorbitant use of power for lighting, and simultaneously brighten our lives more pleasantly, with the applicati
Stem Cells Neurological Treatments
This profession video addresses the search for hidden healers within our own genes and stem cells. More and more doctors are looking to the smallest places in the human body for cures that are hidden within genes and stem cells. The video focuses on a young man who suffered a spinal cord injury that left him paralyzed. An experimental treatment may hold the key to renewed mobility. It involves injecting embryotic stem cells into the spine. Another part of the video focuses on a small boy
Reflections on the Current H1N1 Flu
John M. Barry brings unsettling news from the frontlines of H1N1 research: this novel influenza virus is very hard to pin down. In spite of international scientific scrutiny, H1N1 continues to baffle and elude, worrying health officials defending against the pandemic, and challenging some ideas about influenza in general. Says Barry, â€
Ernst Chain Prize and Lecture 2006 - The T cell-virus interface
Professor McMichael describes the T cell-virus interface and explains his influential contributions in the field of human immunology, particularly looking at viral infections and their interactions with T cells .
Stem Cell Therapies are no More Drugs Than Soufflés are Fast Food
Stemcell discoveries make great news stories, but their actual translation into routine clinical practice is still a major hurdle. Is it reasonable to expect the big pharmaceutical companies to manufacture these living therapies or is the paradigm shift from today’s drugs to ‘living cells as therapies’ overwhelming? Would McDonald’s ever put delicate soufflés on their fast-food menus? This lecture will use examples from current cell and tissue-engineered clinical therapies to illustrate
2008.01.16 - DIY iSync Phone Plugin (Video)
If you or your staff/faculty have a cell phone model that currently isn't supported on Apple's list of supported iSync devices, you can create your own iSync Phone Plugin for your unsupported cell phone to allow you to sync contacts, and calendars.
2008.01.16 - DIY iSync Phone Plugin (Audio)
If you or your staff/faculty have a cell phone model that currently isn't supported on Apple's list of supported iSync devices, you can create your own iSync Phone Plugin for your unsupported cell phone to allow you to sync contacts, and calendars.
6.1 Introduction
This unit helps you understand the properties of nucleotides and how they contribute to secondary and tertiary structures of nucleic acids at the molecular level. You will learn about the different composition and roles of nucleic acids in the cell, their interactions with each other and the use of ribozymes, aptamers, antisense and hybridization as tools in molecular research. The unit covers the function of DNA packaging within the cell, the interactions between the DNA double helix and the nu
Diffusion Across a Sheep Red Blood Cell Membrane
This cell membrane physiology laboratory uses sheep red blood cells to determine: (1) the isotonic and hemolytic molar concentrations of electrolytes and nonelectrolytes, and degree of electrolyte dissociation; (2) the diffusion rate of penetrating molecules of varying size and lipid solubility; and (3) the relationship of molecular size, number of hydroxyl groups, and partition coefficient to diffusion rate. Student research teams then design an experiment using the acquired techniques to deter
Boudreaux on Monetary Misunderstandings
Don Boudreaux of George Mason University talks with EconTalk host Russ Roberts on some of the common misunderstandings people have about prices, money, inflation and deflation. They discuss what is harmful about inflation and deflation, the importance of expectations and the implications for interest rates and financial institutions.
Moore's Law Forever?
In 1965, Gordon Moore observed that the number of transistors on a silicon chip doubled every technology generation (12 months at that time, currently 18-24 months). He predicted that this trend would continue for a while. Forty years later, Moore's Law continues to hold. Since the number of transistors in a circuit is a measure of the circuit's computational power, the doubling of transistor counts compounded over a 40 year period has led to an enormous increase in the performance of electronic
MacRetina
MacRetina simulates data from retinal ganglion cells in the eye to the brain.
By sampling neural activity while stimulating the retina with small spots of light, students can see the dynamic excitatory and inhibitory responses of these neurons in the simulation, and map the organization of the retinal region that drives the cell's receptive field.
MacRetina is modeled accurately on published data and is a realistic simulation of a lab experiment that would otherwise be beyond the reach of the
