9.2 Other hazards
Health, safety and risk assessment are of paramount importance both in the laboratory and the field. This unit will help make you more aware of the hazards and risks involved in laboratory and field-based research work, as well as giving you an overview of the legal requirements attached to this work. The unit discusses issues involved in the handling chemical and biological agents, basic safety procedures and common field-work hazards.
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Airline Security: Where are We?
The events of 9/11 unleashed a flood of security measures across all dimensions of daily life, many of them aimed at averting repeat attacks on aircraft. So you might imagine that the risks of flying have been much reduced. You’d be wrong, says Arnold Barnett, who has scrutinized the changes in air security regulations, and
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The Future of Nuclear Energy
Nuclear energy will emerge either as a solution to the twin crises of global warming and a secure energy supply, or global catastrophe. Within this panel at least, there doesn’t seem to be a comfortable middle ground.

MIT’s Andrew Kadak, one of the two speakers arguing the necessity of nuclear energy, advance

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The Next Catastrophe: Reducing Our Vulnerabilities to Natural, Industrial, and Terrorist Disasters
It’s time to trade in the Department of Homeland Security for a Department of Homeland Vulnerabilities, says Charles Perrow. At its peril, our nation “privileges terrorism over natural and industrial disasters.”

From Perrow’s perspective, the U.S. landscape is riddled with “weapons of mass destruction:

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Human Rights and Politics in Israel-Palestine
Human rights are central to the fraught politics between Israelis and Palestinians, these two panelists argue. Any conceivable solution to such an endless conflict must begin by acknowledging the current bleak realities of Palestinian life under Israeli rule, they say.

Anat Biletzki and the group B'T

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Bill Porter in Conversation with Howard Anderson
Some of the lessons Bill Porter picked up as a 13-year-old ranch hand in Colorado seem to have lasted a lifetime. When his boss told him to drive over a treacherous mountain pass into town for some chicken feed, Porter said he could not yet drive. He was told, “Just do it.” And when he faced taking a team of horses out to pas
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U.S. Planning and Realities of Post-War Iraq
Judging from these panelists, the more intimate your experience of Iraq, the more optimistic you are likely to be. David J. Nash was fully immersed. He organized the multi-billion dollar reconstruction effort of Iraq’s infrastructure in 45 days. His 2800 projects ran the gamut from new power plants and water compani
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Luminescent Solar Concentrators Explained
Researchers are well along in designing a highly efficient, inexpensive solar cell, but the big barrier to the dissemination of solar power in society remains the problem of installation, says Marc Baldo.

As an engineer, Baldo expresses confidence that “we’re going to mow down” the problem of producing a g

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Acknowledgements
This Unit looks at how units if inheritance are transmitted from one generation to the next. First you will look at what happens to the chromosones of animals and plants during the process of sexual reproduciton. Then you will examine how genes are transmitted in particular patterns from generation to generation. These two approaches combine to illustrate how the patterns of inheritance can be explained by the behaviour of chromosomes during sexual reproduction.
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HGSE Gives Thanks
Members of the Harvard Ed. School community express gratitude around the Thanksgiving holiday.
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U.S. Morning Call: Spain in pain; cushy deal for Sealy
Sep 27 - Spain set to announce fiscal reforms and strict budget cuts, and Tempur-Pedic acquires Sealy for $1.3 billion.
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Acknowledgements
From the mouse-deer to the elephant, plant eaters come in all shapes and sizes. But how do they manage to flourish on a salad diet? In this unit we will examine the special features that allow them to extract their nutrients from leaves, and see how some plants protect themselves from these predators. This is the fourth unit in the ‘Studying mammals’ series.
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13.1 Introduction

I'll now introduce you to some different storage media and devices. As the uses for ICTs have expanded and developed, so has the need to store ever larger amounts of data. I've quoted some figures for storage capacity in this section but, given the rapid rate of development in ICT systems, some of these figures may be out of date when you read this unit.


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Copyright © 2013 The Open University

Johannes Gutenberg
Historical tale of the inventor of the printing press, Johannes Gutenberg See how in 1439 - the invention of the printing press - forever changed the world. (Amateur video)

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1.3 Nucleic acids and the flow of genetic information
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
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1.2 Nucleic acids: genetic, functional and structural roles in the cell
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
Author(s): The Open University

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Learning outcomes
Health, safety and risk assessment are of paramount importance both in the laboratory and the field. This unit will help make you more aware of the hazards and risks involved in laboratory and field-based research work, as well as giving you an overview of the legal requirements attached to this work. The unit discusses issues involved in the handling chemical and biological agents, basic safety procedures and common field-work hazards.
Author(s): The Open University

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Except for third party materials and otherwise stated (see http://www.open.ac.uk/conditions terms and conditions), this content is made available under a http://creativecommons.org/licenses/by-nc-sa/2

2.3 Skin pigmentation and pattern
In the 18th and 19th century evolutionary biologists, including Darwin, emphasised the similarities between natural evolution and artificial ‘ improvement’ of livestock under domestication. They believed that studying domesticated animals and plants could illuminate the mechanisms of natural evolution.
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Introduction
In the 18th and 19th century evolutionary biologists, including Darwin, emphasised the similarities between natural evolution and artificial ‘ improvement’ of livestock under domestication. They believed that studying domesticated animals and plants could illuminate the mechanisms of natural evolution.
Author(s): The Open University

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8.1 Introduction
From the mouse-deer to the elephant, plant eaters come in all shapes and sizes. But how do they manage to flourish on a salad diet? In this unit we will examine the special features that allow them to extract their nutrients from leaves, and see how some plants protect themselves from these predators. This is the fourth unit in the ‘Studying mammals’ series.
Author(s): The Open University

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Except for third party materials and otherwise stated (see http://www.open.ac.uk/conditions terms and conditions), this content is made available under a http://creativecommons.org/licenses/by-nc-sa/2