LNS Special Seminar Recorded 11/29/12
Future energy demand and supply
When you consider that the global annual consumption of primary energy increased more than ten-fold during the 20th Century, the importance of planning future energy supply becomes clear. First published on Wed, 27 Jul 2011 as Author(s):
Obesity: Balanced diets and treatment
The incidence of obesity is on the increase in affluent societies, and the phenomenon commands increasing attention from health professionals, legislators and the media. This unit looks at the science behind obesity, examining the dietary, physiological and genetic aspects of the topic. First published on Wed, 27 Jul 2011 as Author(s):
Nutrition: Proteins
This Unit studies 'proteins'. Starting with a simple analysis of the molecular make up, the Unit moves on to look at the importance of protein and how they are digested and absorbed First published on Wed, 27 Jul 2011 as Nutrition: Proteins
Influenza: A case study
This unit explores the biology of influenza, covering a range of topics including: the virus, infection, replication, mutation, immune responses, pathology, surveillance, diagnosis and treatment. First published on Fri, 16 Dec 2011 as Infl
Introduction to histopathology
This unit provides an introduction to the subject of histopathology and outlines how the appearance of different tissues changes due to damage, inflammation, infection or degeneration and how microscopy can aid in the diagnosis of disease. First published on Thu, 05 Jul 2012 as Author(s):
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5.2 The pharmaceutical background The existence of alpha receptors had been known for many years, and the obvious approach of trying to block these receptors, and hence prevent the noradrenaline from binding, had already been tried by many research groups. A number of compounds with alpha-blocking activity had been identified, including one called prazosin (2) discovered by Pfizer at their US research laboratories in Groton. Substances such as prazosin which block agonist action are called antagonists.
2.14 Summing up Dr. Peterson concludes the audio sequence with a summary of all the points covered. 2.11 Consequences of human / chimp pairing This clip refers back to the table of molecular characters, which is shown again here (Figure 9). It explains the consequences of human / chimp pairing in terms of homol Introduction The versatility of mammals is a central theme of the ‘Studying mammals’ series of units, but surely no environment has tested that versatility as much as the rivers and oceans of the world. Mammals are essentially a terrestrial group of animals, but three major groups have independently adopted an aquatic way of life. In moving to the water, aquatic mammals have had to survive, feed and reproduce using a set of biological characteristics that evolved in association with life on land. This 1.2 Chemical elements Atoms of the same atomic number behave virtually identically in chemical reactions. They are therefore given the same chemical name and chemical symbol. For example, the atom of atomic number 6, which is shown in Figure 1, is a carbon atom, whose symbol is C. All materials are made of atoms, but there is a special class of substan 1.3 An overview of animal phyla We have already met quite a few different animal phyla, and it's useful to get an overview of all the ones commonly found in the fossil record and their mode of life before studying some in more detail. Except for a few soft-bodied phyla with very poor fossil records, it is clear that all the animal phyla had appeared by the Ordovician Period. 6.1 Introduction Despite efforts to avoid them, heart disease, heart failure and heart attacks do occur – sometimes with warning symptoms and sometimes without. Cardiologists (doctors specialising in the heart) use a variety of tests to determine the causes of different conditions leading to heart disease. They are then able to guide subsequent treatment. Special tests that are carried out in cardiology departments may include blood pressure measurements, blood tests, electrocardiography, angiography, echoc 4.7 Special circumstances? Individuals can only attempt to alter risk factors they are aware of and need to be informed about what is relevant to them. Women and men have different considerations, and ethnic background can also have an influence on susceptibility to cardiovascular diseases. Such considerations require improved awareness based on reliable knowledge from scientific studies (see Author(s): 4.6 A balanced diet Our diet is simply what we eat and drink. Diet does not mean that we are trying to lose weight, although sometimes this is necessary. What we eat is very important, particularly in people with diabetes (as you found out in Section 3). Our wellbeing is influenced by whether or not we eat a balanced diet. A balanced diet is one 2.1 Preamble Statistical information is a familiar aspect of modern life, which features routinely in, for example, news reports, sports commentaries and advertising. Scientists who have collected large amounts of data by either counting or measuring quantities also rely on statistical techniques to help them make sense of these data. Suppose you had information collected from, say, three thousand patients, all with the same medical condition but undergoing a variety of treatments. First you would need te Convenience The calculator is small and slips conveniently into a bag or pocket. You will be able to carry it around with you and use it unobtrusively as and when you want – perhaps in a shop, on a train or in a restaurant. Ease of use Most aspects of the calculator are straightforward to use. Calculations are entered on the screen in the same order as you would write them down. More complicated mathematical functions and features are also reasonably intuitive, and there are ‘escape’ mechanisms, so that you can explore without worrying about how you will get back to where you were.
Activity 13
Activity 10
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