4.5 Summary Molecular approaches to the study of hibernation have combined largely non-hypothetical analytical and targeted methods. The analytical approach shows changes in the expression patterns of novel genes, often with unforeseen or unknown functions in hibernation, whilst indicating that the scale of the full range of adaptive genetic changes is small. The targeted approach has confirmed an important role for gene products normally involved in maintaining biological rhythms and energ
Conclusion This free course provided an introduction to studying Science. It took you through a series of exercises designed to develop your approach to study and learning at a distance and helped to improve your confidence as an independent learner.
2 One gene–one protein A gene is a short section of a long DNA double helix molecule, which comprises a linear sequence of base pairs. What is the basic (primary) structure of a protein? 4.5 Some general results We next establish some general results about Euler characteristics. We start with a theorem that tells us what happens to the Euler characteristic of a surface when we remove an open disc. The Euler characteristic of a surface with an open disc 2.2.1 Surfaces without boundary Examples of surfaces without boundary are a sphere and a torus. Other examples are the following: n-fold toruses
Figure 13 depicts a 2-fold torus and a 3-fold torus, with two and three rings respectively. An n-fold torus, for any positive integer n has n rings. (A Changing cities 2.4.1 Multimode distortion With multimode fibre, the main cause of pulses spreading is the multiple paths that signals can traverse as they travel along the fibre. This phenomenon of multimode distortion is illustrated in Figure 5. 11.1 he four pleasures In consumerist societies, buying, using and displaying products has come to represent a certain type of pleasure. This pleasure principle has to be acknowledged in new product development and design. The designer Kenneth Grange has said that a guiding design principle for him is that a product should be ‘a pleasure to use’. The pleasures of using a product are derived from the perceived benefits it offers to the user. Can we be more explicit in planning product benefits that are ple 8.1.1 Visibility Recall that a key usability design feature identified by Donald Norman – from his analysis of using everyday objects such as doors – was visibility. An everyday object such as a door, or a control such as a button on a product should appear to be obvious about how it is used, and indeed it should perform that obvious function. For example, is it obvious how you insert a disc into a player? Is it obvious how you switch the machine on, adjust volume, and so on? 8.1 Making usable products This section reveals that many modern products need to usable by our minds as much as our bodies. Products need to be understandable, and present information and feedback in meaningful ways. A lot of ergonomics research is aimed at establishing guidelines, standards or rules that can be applied by designers in a variety of situations. Where this applies to the physical use of products, much of it is based on standard body measurements. These body measurements are known as anthropomet 7 Ergonomics and human factors This section discusses designing for human capabilities and limitations. It introduces the study of ergonomics which can offer general guidelines as well as specific suggestions for good, user-centred product design. Taking the user as the central point of reference for the design and evaluation of products is the approach encouraged by ergonomists. The field of ergonomics (also known as human factors engineering) is the systematic study of human capabilities, limitations and requ 4.7 Summary Water in its 'natural' state supports a complex, yet fragile, ecosystem. The ability of natural watercourses to sustain aquatic life depends on a variety of physical, chemical and biological conditions. Biodegradable compounds, nutrients and dissolved oxygen must be available for the metabolic activities of the algae, fungi, bacteria and protozoa which are at the lowest level of the food chain. In addition, plant and animal growth cannot occur outside narrow ranges of temperature and pH. Susp 4.6 Tidal rivers and estuaries Most of the major cities and harbours in the world are located on estuaries. The estuarine ecosystem is a unique intermediate between the sea, the land and fresh water. A rather precise definition of an estuary is 'a semi-enclosed coastal body of water, which has a free connection with the open sea, and within which sea water is measurably diluted with fresh water derived from land drainage'. This excludes large bays with little or no freshwater flow, and large brackish seas and inland 2.8 Surface run-off In some inland drainage areas, all water is removed by evaporation and infiltration. However, precipitation not penetrating the land surface usually runs off the surface along defined channels which have been produced by geological processes, previous storms, or possibly by people. This accelerates the process. Its eventual destination is the ocean, except, of course, where it runs to inland seas such as the Dead Sea. It is in the runoff phase of the cycle that physical intervention by humans 3.3.4 Examining the parts Brittle fractures were discovered quickly in the mass of debris hauled from the river. Such samples became the focus of increasing effort as time went by, simply because they were unexpected. So the possible failure mechanisms were immediately narrowed down when brittle fractures of critical components started to emerge from the river. Inuit Throat Singing 8.5 Looking for Hinduism in Calcutta 4.1 Environment and education: Wales 1771–c.1782 Owen had a remarkable career even before he reached New Lanark. His kin and upbringing at Newtown in mid-Wales were highly influential. His parents were shopkeepers and his father was also the postmaster and a churchwarden. So the Owens possessed practical retailing and administrative skills, which they passed on to their offspring, including Robert, a precocious and clever boy. Newtown was located in one of the most profoundly rural parts of southern Britain, yet beginning to be touched by e 2.6 Houses at Carthage, Bulla Regia and Thugga Your next activity is to watch a video on houses of the Roman élite. The video presents houses from different parts of the empire. Houses of the Roman élite (part 1 (Intro); 2 minutes) LES « SANS PAPIERS »,
DES MIGRANTS PAS COMME LES AUTRES ? (1) Introduction générale (Vidéo) On les appelle les « sans papiers », comme s’il s’agissait d’un statut, comme si les hommes et les femmesqu’on désigne ainsi n’avaient pas tous les papiers, sauf le seul qui leur permettrait d’être des citoyen-ne-sà part entière, issu-e-s de l’immigration, avec tout ce que cela implique comme discriminations (travail,logement ...
SAQ 1
Theorem 10: Disc Removal Theorem
Urban processes are increasingly held to be responsible for causing a variety of problems – environmental destruction, social injustice, global financial instability. They are also identified as harbouring the potential to meet these challenges – through urban experiments in sustainably living, creative culture and alternative economies. This unit explores how contemporary processes of urbanisation challenge how we think about political agency, providing a framework for the analysis of the c
Author(s):
In many cultures, song is perhaps one of the most important traditions. What is extraordinary about the Inuit musical tradition is the way they create their songs - with notes originating from their throats. The song isn't interrupted even when a breath has to be taken. The 6 tracks in this album focus on Tanya Tagaq, who describes the amazing art of throat singing and how her heritage and culture, carried in her heart forever, has driven her to continue with this unique tradition. This mater
