Free Radicals and Antioxidants in the Year 2000: A Historical Look to the Future

2006 ◽  
Vol 899 (1) ◽  
pp. 136-147 ◽  
Author(s):  
JOHN M.C. GUTTERIDGE ◽  
BARRY HALLIWELL
Keyword(s):  
1985 ◽  
Vol 10 (3) ◽  
pp. 198-210 ◽  
Author(s):  
Robert L. Carpenter

This study uses a Delphi technique to estimate the likelihood of a set of change statements concerning emotional disturbance/behavioral disorders. Using a national random sample of 900 teachers, special education administrators, and school psychologists through two rounds of responses, estimates are made regarding the likelihood and the desirability of the condition represented by each statement occurring by the year 2000. Results are compared by variables of experience in the field, occupation, and level of educational attainment. Despite certain significant differences between groups the preponderant conclusion is that there is general agreement among the population surveyed regarding their expectations and sentiments about the future of the field.


After two years of study the report of the Workshop on Alternative Energy Strategies (W.A.E.S.) was released in early May 1977 in the fifteen national capitals of the Workshop members. W.A.E.S. is an ad hoc , international project involving 75 individuals from 15 countries. Its objective is to describe a range of feasible alternative energy strategies to the year 2000 for the nations of the World Outside Communist Areas (W.O.C.A.). These 15 countries are major energy consumers, using some 80% of the energy consumed by W.O.C.A. in 1972. Three are also important oil producers and exporters - Iran, Mexico and Venezuela. World oil production is expected to decline before the end of the century under almost any set of world conditions. W.A.E.S. evolved out of the common concern of a number of influential people in various parts of the world who believed that the transition from oil to other energy sources needed to be widely understood and effectively managed in order to avoid major national and international dislocations. The first major task of W.A.E.S. was to identify and agree on the major determinants of future energy supply and demand, to select a range of likely values for these determinants, and to develop a conceptual framework for bringing together the various national and global studies in a way that would be internally consistent, clearly visible and understandable. World energy prices, the rate of world economic growth and national energy policy were selected as the principal determinants of future energy supply and demand to 1985 and to the year 2000. A range of assumptions for each of these key variables was tested and adopted. Specific cases, based on combinations of these principal determinants, were selected to span a wide range of likely future energy supply and demand patterns. ‘Scenario’ is the term used for each case. A ‘scenario’ is not a forecast of the future. Rather, it represents a plausible future constructed from certain specified variables. Adding up the estimates of energy demand and supply for W.A.E.S. countries for each ‘scenario’ of the future, plus estimates for other countries have made it possible to evaluate future world energy balances or imbalances under particular sets of assumptions. The objective of this approach has been to understand better, quantitatively and qualitatively, the major energy issues and choices of the future and to identify which long term strategies will be most useful in balancing future world energy supply and demand. For example, at some point, perhaps before the year 2000, the cumulative national demands for oil imports may well exceed the cumulative potential for oil exports. Years before this happens nations must develop realistic national energy strategies which take account of such a situation. This requires action on a very broad scale, long before such a gap might actually develop, to ensure a smooth transition from energy systems largely based on oil to systems based on other energy sources such as coal and nuclear fuel. The time at which, and the degree to which, the transition from oil to other energy sources is perceived, understood, accepted and acted upon within and among nations will be crucial to an orderly world energy transition. This lecture, which followed the public release of the report, includes a review of the principal conclusions, the methodology used for making supply and demand projections to the year 2000, and some implications for national action and international collaboration. I am honoured to speak to you on the occasion of this first lecture sponsored by the Fellowship of Engineering in conjunction with the Royal Society. Once before I was at a meeting of the Royal Society as a listener, not a speaker. It was in March 1941 at the Society’s rooms at Burlington House. I was in England with Professor J. B. Conant establishing a London office for the conduct of cooperation and liaison between the American scientific efforts in the development of new weapons and the notable efforts going forward in the United Kingdom. I recall the interesting timing device monitoring speakers which went from a green light to yellow at nine minutes and from yellow to red at ten minutes. I copied this device for our Energy Workshop. I needed it only once - at our first meeting. Thereafter, interventions were less than nine minutes.


1997 ◽  
Vol 26 (1) ◽  
pp. 43-59 ◽  
Author(s):  
Joseph B. Mosca

Organizations and employees can plan on one certainty, “Change”. Change is one result of organizational development, and it will continue in the future. In the background of these factors are the corporation changes, and the human dimension which managers and society must contend with. As changes in the new direction of the corporation are planned, employees will have to plan their direction as well. The focus of this paper is on how jobs will be restructured in the year 2000. This restructuring of the workforce is a result of new organizational development and job changes. A discussion on the causes of these changes are followed by an illustration of what the restructured jobs will consist of, and how to adapt.


2002 ◽  
Vol 17 (22) ◽  
pp. 3026-3035
Author(s):  
◽  
FABIO BOSSI

Since April 1999, the KLOE experiment at DAΦNE has collected about 200 pb-1 of data, produced in e+ - e- collision at the c.m. energy of 1020 MeV, the mass of the ϕ(1020) meson. This data has been used for detailed studies on the ϕ radiative decays, as well as on rare [Formula: see text] decays. The first results, based on the ~ 20 pb-1 collected in year 2000 are presented here. Perspectives for the future data taking are also discussed.


1978 ◽  
Vol 20 (8) ◽  
pp. 225-226

Whether predictions of the future can be made on the basis of extrapolation is a matter for conjecture. But if one assumes a linear evolution, change will continue apace; and by the year 2000 all nations will be enjoying higher living standards than at present. But life styles, and socio‐technical and politico‐economic systems, will not be radically different from those currently prevailing. People will have been afforded an opportunity to adjust by taking one step at a time, and many may feel that this is the most desirable future open to us.


1990 ◽  
Vol 20 (1) ◽  
pp. 43-56
Author(s):  
K. Edward Renner ◽  
Ronald J. Skibbens

Similar to the 1960s, higher education is once again in a period of rapid social chance in which new demands and expectations are being made on colleges and universities. This time, however, new money is not available for the transition to be achieved though additional growth. In this paper, the methodology of Position Description Analysis is presented using Dalhousie University as a case study. Position Description Analysis is a tool for assessing the discrepancy between the status quo and the specializations needed for colleges and universities to meet the new demands and expectations which are being made of them. It is concluded that there is a need for dramatic realignement of fields of specialization in order to shift from the emphases of the past to those of the future. However, because the faculty higher in the 1960s are now tenure, but no due to retire until after the year 2000, higher education must find internal strategies for chance or face externally imposed solution to their current lack of flexibility.


2008 ◽  
Vol 42 (43) ◽  
pp. 103-107
Author(s):  
Stasys Maciulevičius ◽  
Tomas Lygutas

Lietuviškoji ECDL testavimo sistema sukurta 2000 metais, o pirmieji testai užfiksuoti 2000 metų gruodį. Tad per praėjusius daugiau nei šešerius metus sukaupta nemaža šios sistemos naudojimo patirtis, leidžianti apibendrinti kai kuriuos testavimo dalykus, nurodyti sistemos trūkumus ir numatyti jos testavimo tolesnio tobulinimo poreikius ir galimybes. Straipsnyje analizuojami testavimo sistemos funkcionavimo ir kokybės užtikrinimo klausimai, galimybės pereiti prie testavimo taikomųjų programų aplinkose. Perėjimas siejamas su testuojamojo atliekamų veiksmų įvertinimu, klausimų ar užduočių formulavimu.Experience of using ECDL testing system and possibilities of its improvementStasys Maciulevičius, Tomas Lygutas SummaryLithuanian ECDL test engine was created in year 2000. Since the creation more than 138 000 tests were taken, more than 26 000 ECDL and ECDL start certificates were issued. The experience of more than 6 years allows to generalize on certain aspects of testing process, enables to envisage its drawbacks and possible development strategies in the future. This article overviews quality standards of ECDL testing, analyses aspects of current ECDL test engine and discusses the drawbacks of current testing technology, relates these with issues and steps required to make a transition to a new type in-application testing, mainly – evaluation of user actions, formulation of tasks.


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