8.4 The organisation of the mitotic chromosome

In order to prepare the chromosome for mitosis, a process in which DNA molecules become physically separated, an additional stage of compaction occurs to reach the highest level. The processes involved in this final stage of compaction are not clearly understood, but can be represented diagrammatically as in Figure 43. The process probably involves the coiling together of scaffolds into the higher-order structure.


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IDS350 Gardens of California #10 Spring 2015
An examination of the relationship between environment and the flora that surrounds us with Jerry Turney www.YouTube.com/csuDHTV [Please Subscribe]
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1 Physics and the physical world

Studying physics will change you as a person. At least it should. In studying physics you will encounter some of the deepest and most far-reaching concepts that have ever entered human consciousness. Knowledge gathered over many centuries, that has been subjected to continuous scientific scrutiny, will be presented, along with its applications. Fact will follow fact, useful theory will succeed useful theory. Amidst this rich mix of information, newcomers to physics might not always appreciate
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Michael King Memorial Lecture 2012: Grahame Sydney – Regionalism Forever: Reflections on My Backya
Grahame Sydney is a celebrated New Zealand artist whose works focus on the landscapes of Central Otago and the Maniototo in the South Island. Sydney was the University of Otago Frances Hodgkins Fellow in 1978 and is well-known for his love of the New Zealand environment, and his efforts to protect it from over-development. Here he discusses his views on regional diversity, and the future of our countryside. 4 October 2012.
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5.3.1 Regulations

A regulation is a Community act, which ‘shall have general application. It shall be binding in its entirety and directly applicable in all Member States.’ Regulations are directly applicable, which means that once they have become EU law they apply immediately in all EU member states. They do not need implementation by the member states.

Regulations come into force 20 days after their publication in the European Union's official journal, unless otherwise specified.


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7.4 Proteomics

Traditionally, the study of the biochemistry or structure of a protein necessitated its purification to a high degree. The development of protocols for cloning, manipulation and expression of genes greatly facilitated this kind of study, as will be clear to you from the previous section. In recent years, a number of high-throughput techniques have, to an extent, obviated traditional approaches and permit simultaneous analysis of all the expressed proteins in a cell or organism, known as the <
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Acknowledgements

The content acknowledged below is Proprietary (see terms and conditions) and is used under licence. This content is made available under a Creative Commons Attribution-NonCommercial-ShareAlike 2.0 Licence

Grateful acknowledgement is made to the following sources for permission
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EN-7. Feeding people and birds: interactions between fishermen and marine predators (Vidéo)

Sophie Bertrand presents the main forms of interaction between fishermen and birds as part of the practice of fishing: accidental catches, competition, or other unexpected effects. In order to limit those kinds of impacts, she offers some possible actions.


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4.11 Image and video capture devices

Earlier, we looked at keyboards and scanners as a means of taking text across the boundary.

SAQ 16

What are the main devices used for transforming images and video into digital form inside the computer?


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2.4.3 Sulfur (S)

Most proteins contain about 1% sulfur, which occurs in the side-chains (R groups) of two of the protein-forming amino acids, methionine and cysteine.

Cysteine is particularly important in proteins such as collagen (found in bone, tendons, cartilage and skin) and keratin (found in hair and nails, as well as skin).

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2.4 Applying a critical approach

A critical approach to young people's health sounds fine in the abstract, but what might it mean in practice? How can such a framework help us to make sense of young people's actual experience of physical and mental distress?

To explore these questions, we will look at the apparent increase in the incidence of eating disorders, especially among young women. One of the advantages of this example is that it combines concerns about physical and mental health. This discussion will draw on a
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7.5 Summary of Section 7

  1. Site-directed mutagenesis is an important technique for studying protein function. Using recombinant DNA technology, selected amino acids can be substituted with different residues to alter the structure and function of a protein. One widely used method employs primer extension. SDM studies can help identify residues that are critical for interactions or catalytic activity.

  2. Protein–protein interactions can be studied in a number of different
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3 The origin and spread of BSE

Question 7

In the light of the above discussion about prions, what is the most probable explanation for the spread of BSE among cattle?

Answer


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5.4 Application: deaf-blind education

Vygotsky's ideas have been applied to the remediation of the developmental barriers encountered by a wide variety of children, most notably deaf-blind children, and those with learning difficulties. As mentioned previously, for Vygotsky, cognition is actively developed by language. Therefore the social constructivist approach sets out to develop the language abilities of these children (often through using sign language or alternative communication systems) and through this they are enabled t
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Russell Strand speaks at Army War College
Army War College students, staff, Family members and the Carlisle community heard presentations from retired Army Criminal Investigation Command special agent Russell Strand on sexual assault and harassment awareness training Sept. 24. Strand, chief of the U.S. Army Military Police School Behavioral Sciences Education and Training Division, has more than 30 years of law enforcement, investigative and consultation experience. His expertise and training includes domestic violence intervention, cri
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2 A prince at the seaside

In this section we will take a closer look at the life of George IV and what brought him to Brighton.

The Prince of Wales (see Figure 2 ), known familiarly to his friends as ‘Prinny’, was born in 1762 and destined to become Prince Regent in 1811 following the onset of the madness of his father, George III. He finally became George
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1.3 Most receptors are on the cell surface

Water-soluble signalling molecules cannot cross the membrane lipid bilayer, but bind to specific receptors embedded in the plasma membrane. The receptors have an extracellular domain that binds the signalling molecule, a hydrophobic transmembrane domain and an intracellular domain.

Binding of a ligand induces a conformational change in the receptor, in particular that of its intracellular region. It is this conformational change that activates a relay of intracellular signalling molecul
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Learning outcomes

After studying this course, you should be able to:

  • demonstrate an awareness of current media and policy discourses surrounding young people's physical and mental health

  • critically analyse ideas about young people's wellbeing using a range of theoretical perspectives

  • demonstrate an understanding of some of the ways in which young people's experience of mental health is shaped by diversity and inequality

  • demonstrate an awareness of diff
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2012 March 8 - Part 1

Prof. Adams briefly reviews the processes of asymptotic and series analysis to derive the energy eigenstates of the quantum harmonic oscillator, and then begins to discuss the operator method.


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1.5.3 Sedimentary strata

We've seen that the detective work of piecing together a part of Earth's history from sedimentary rocks involves detailed investigation of rock samples, but this can give only a partial picture. On the larger scale of a rock exposure, there can be plenty for us to see and to interpret. Sedimentary rocks are usually found as layers referred to as strata (Author(s): The Open University