4.3 Dutch elm disease

Not all change is a direct result of human intervention. Sometimes changes can occur over which we have little control. One such example is the case of Dutch elm disease (so-called because most of the early studies of the disease were carried out in Holland, although the disease was first observed in France in 1918). The disease is caused by a fungus, Ceratocystis ulmi, that has the elm, Ulmus procera, as its only habitat and food source. Spores of the fungus are carried by the
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2.1 Numbers

The supermarket example discussed in Section 1 involves various forms of data that a computer may need to handle. Some of these, such as numbers and characters, are simple but fundamental. Other forms of data, such as sequences, involve more complicated structure. In this section, we will introduce sets, which are a variety of data collection that is different from sequences. But first we will look more carefully at numbers and characters.

When developing software we need to dist
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8 CASE tools

Computer Assisted Software Engineering (CASE) tools were developed to support the professional system developer and improve their productivity in the complex task of developing large information systems.

The benefits that may accrue from the use of such tools are many. From a developer’s viewpoint, they provide support for modelling aspects of the system using a variety of notations and techniques: from diagrams to mathematics and text, producing prototype code, and even verif
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Repercussions of the Sub Prime Crisis
Viral Acharya, Professor of Finance, talks about the repercussions of the sub prime crisis.

6.830 Database Systems (MIT)
This course relies on primary readings from the database community to introduce graduate students to the foundations of database systems, focusing on basics such as the relational algebra and data model, schema normalization, query optimization, and transactions. It is designed for students who have taken 6.033 (or equivalent); no prior database experience is assumed, though students who have taken an undergraduate course in databases are encouraged to attend.
Author(s):
Madden, Samuel,Morris, Robert,Stonebraker, Michael

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Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative C

The post-crisis politics of financial reform: business as usual or new global order?
Poul Nyrup Rasmussen, President of European Socialist Party and former Prime Minister of Denmark talks about the politics of current efforts to regulate the financial sector.
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4.2.1 Comparing the management systems

One approach to BS 8800 follows the ISO 14001 model, and the ISO 14001 system itself was closely modelled on the previous ISO 9000, with the 2000 revision of ISO 9000 following ISO 14001 principles. As a result, you may imagine that there are similarities between the standards. Many of the elements are similar, and some are nearly identical. Management systems share common elements, including developing and documenting procedures, training, record keeping, auditing, and corrective action. Fig
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EN-9. Management of an emblematic species: the bluefin tuna (Vidéo)

With Jean-Marc Fromentin, we discover the bluefin tuna. It is fished since Antiquity, but it is subjected to strong pressure for almost three decades, which is responsible for a large decline of the populations. He evidences the scientific, political and social aspects which enabled to better preserve this emblematic species.

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Lecture 27 - 11/24/2010
Lecture 27
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The Music of Power
When I hear music, I fear no danger. I am invulnerable. ---- Henry David Thoreau
Author(s): Li Huang, INSEAD Assistant Professor of Organisati

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Rights not set

3.1 Types of incident

Now we can progress to an examination of some incidents by studying selected reports and publications.

Returning to the word ‘accident’, we can cite another definition:

An accident is an undesired event which results in physical harm and/or property damage. It usually results from a contact with a source of energy above the threshold limit of the body or structure.

(Kuhlman, 1977, p. 5)


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Timeline of The Space Race - Wiki Article
The Space Race was an informal competition between the United States and the Soviet Union that lasted roughly from 1957 to 1975. (01:20)
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Social work learning practice
This free audio course, Social work learning practice, focuses on the importance of people's backgrounds and experiences in the field of social work. It identifies the diverse ways in which service users and social workers define themselves, helping you to understand how the two groups perceive each other and relate successfully to each other. An understanding of how people make sense of their experiences will help you to define yourself, and your own place within the process.Author(s): Creator not set

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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

References

Allen, J. (2006) ‘Claiming connections: a distant world of sweatshops?’ in Barnett, C., Robinson, J. and Rose, G. (eds) A Demanding World, Milton Keynes, The Open University.
Barnes, D.K.A. (2002) ‘Invasions by marine life on plastic debris’, Nature, vol. 416, 25 April, pp. 808–9.
Barnett, C. (2006) ‘Reaching out: the demands of citizenship in a gl
Author(s): The Open University

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Learning outcomes

After studying this unit you should be able:

  • describe social citizenship in relation to rights and obligations within society.


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North Dakota Facts
4th grade students explore the State of North Dakota and even sing the state song!
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1.9.1 ‘I dunno’

In his analysis of Extract 5, Potter focuses on the phrase ‘I dunno’, which appears at the beginning and at the end of Diana's last turn above. This phrase seems throwaway, just one fragment, yet perhaps it illustrates something about people's methods or discursive practices more widely. Why is that phrase there? What work does it do? Given the point made in the previous section that events can always be described differently, why this description of this kind of mental state at this poin
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How to conjugate verbs sentire and capire in the present tense
In this video, the verbs sentire and capire are used to show how there are two different types of -IRE verbs in Italian. The speaker uses a white board to illustrate and only speaks Italian. A worksheet with answers is included for practice.
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Learning outcomes

After studying this course, you should be able to:

  • understand how chemical processes in the rest of the world affect the Arctic environment and the species inhabiting it

  • recognise the physical processes that determine atmosphere and oceanic flows in the Arctic

  • understand the scientific research process and the use of scientific evidence

  • use quantitative scientific evidence to examine the link between atmospheric carbon dioxide levels
    Author(s): The Open University

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Introduction to Sociology - Kelly Damphousse 2e
Joshua Davis
Introduction to Sociology was written by teams of sociology professors and writers and peer-reviewed by college instructors nationwide. The textbook was developed for OpenStax College as part of […]

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