1.2.2 Cell–cell signalling via secreted molecules
This unit explains the general principles of signal transduction and specifically, how even the simplest organisms can detect and respond to events in their ever-changing environment.
Author(s): The Open University
1.2.1 Cell–cell contact-dependent signalling
This unit explains the general principles of signal transduction and specifically, how even the simplest organisms can detect and respond to events in their ever-changing environment.
Author(s): The Open University
1.3 Most receptors are on the cell surface
This unit explains the general principles of signal transduction and specifically, how even the simplest organisms can detect and respond to events in their ever-changing environment.
Author(s): The Open University
Episode 4: Stem Cell Research
Professor Loane Skene and Professor Peter Rathjen discuss the debate on stem cell research with Jacky Angus
Guests:
Professor Loane Skene, President of
the Academic Board of the University of Melbourne, a member of the
Council of the University, and Pro Vice-Chancellor of the University.
Professor Pe
Author(s): up-close@unimelb.edu.au (University of Melbourne)
Measuring the Immeasurable: The Costs & Benefits of Climate Change Mitigation
Decisions on whether and how much mitigation of the risks of dangerous climate change is justified raises exceptional challenges. In this lecture Professor Garnaut discusses the issues that arise when we measure and compare market and non-market costs with the benefits of climate change mitigation. He explores the value judgements that must be made when comparing welfare of people with different incomes and wealth, living in different countries, at different times. He also looks at how these con
Author(s): Creator not set
Is the downturn a good time to start a new venture?
Jeffrey Skinner, Executive Director of the Foundational for Entrepreneurial Management, explains why the recession may be a good time to be an entrepreneurHow Plants Do it: Light, Oxygen, Action!
Date of Lecture: Tuesday, August 26, 2008 at 7:30 PM
Ever wonder what goes on at SLAC? Here is your chance to find out. The SLAC Public Lecture Series opens the doors to the inner workings of SLAC for the local nonscientific community. Find out what SLAC is all about: the research, the facilities and the people that make this a world-class research institute. Hang around for refreshments after the talks. Physicists will be on hand to chat so bring your toughest que
Author(s): Creator not set
Tissue engineering and stem cell technology
A lecture, "Tissue engineering and stem cell technology" given by Prof ZhanFeng Cui, University of Oxford, at the 10th OIBC Spring Symposium, held jointly with the Department for Continuing Education, at St Edward's School, Oxford, on 4 March 2009. Visit http://media.conted.ox.ac.uk/oibc2 to view the full presentation from Prof ZhanFeng Cui, including his slides.
Author(s): No creator set
Tissue engineering and stem cell technology
A lecture, "Tissue engineering and stem cell technology" given by Prof ZhanFeng Cui, University of Oxford, at the 10th OIBC Spring Symposium, held jointly with the Department for Continuing Education, at St Edward's School, Oxford, on 4 March 2009. Visit http://media.conted.ox.ac.uk/oibc2 to view the full presentation from Prof ZhanFeng Cui, including his slides.
Author(s): No creator set
The reversal of cell differentiation and prospects for cell replacement therapy
The inaugural Anne McLaren Memorial Lecture, "The reversal of cell differentiation and prospects for cell replacement therapy", given by Prof Sir John Gurdon FRS, University of Cambridge, at Lady Margaret Hall, Oxford, on 7 November 2008. Visit http://media.conted.ox.ac.uk/McLaren-2008 to view the full presentation from Professor Sir John Gurdon FRS, including his slides.
Author(s): No creator set
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
Author(s): No creator set
Carbon Dioxide Uptake in Plants: A Computer-Aided Experimental System
This exercise introduces students to concepts of photosynthesis at the whole organism level and to computer utilization in biology. Changes in carbon dioxide concentration are measured in environmental chambers using gas analyzers connected to computers. Carbon dioxide changes are graphed in real time as the plants take up CO2. Over a short time, sunflower seedlings show dramatic changes in CO2 uptake when light intensity is altered or color filters are used. Comparison of the resulting graphs w
Author(s): No creator set
Cell Fractionation in Tetrahymena
To illustrate cell fractionation, nuclei are isolated from the ciliated protozoan, Tetrahymena thermophila. A table top clinical centrifuge is used for the fractionation steps and the procedure is monitored microscopically using a differential stain. To determine the efficiency of the procedure, cell and nuclear counts are determined with a hemacytometer. To quantify DNA, the Diphenylamine Reaction is carried out and the amount of DNA per nucleus is calculated.
Author(s): No creator set
Cell Biology and Cancer
Cancers result when genes required for normal cell function are mutated and the resulting cells undergo other changes ultimately leading to uncontrolled division. This session reveals new information on normal cell function, proto-oncogenes and tumor suppressor genes and their role in the cell cycle, and current research in drug design for specific cancers.
Author(s): No creator set
Copyright 2009 University of Nottingham
