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排序方式: 共有3598条查询结果,搜索用时 15 毫秒
941.
Grant J. Allan Ian Bryden Peter G. McGregor Tim Stallard J. Kim Swales Karen Turner Robin Wallace 《Energy Policy》2008
We examine the economic and environmental impact that the installation of 3 GW of marine energy capacity would have on Scotland. This is not a forecast, but a projection of the likely effects of meeting the Scottish Government's targets for renewable energy through the development of a marine energy sector. Energy, with a particular focus on renewables, is seen by the Scottish Government as a “key sector”, with high growth potential and the capacity to boost productivity (Scottish Government, 2007a. The Government Economic Strategy. The Scottish Government, Edinburgh). The key nature of this sector has been identified through targets being set for renewable energy to achieve environmental and economic benefits. Using a regional computable general equilibrium (CGE) model of Scotland we show that the development of a marine energy sector can have substantial and beneficial impacts on GDP, employment and the environment over the lifetime of the devices, given the encouragement of strong indigenous inter-industry linkages. Furthermore, there are also substantial “legacy” effects that persist well beyond the design life of the devices. 相似文献
942.
FP Cappuccio R Allan J Barron GA MacGregor VA Murday 《Canadian Metallurgical Quarterly》1999,13(1):79-80
A transjugular central venous catheter was inadvertently sutured to the wall of the right atrium in a 63-year-old female during coronary bypass surgery. Using two nitinol Goose Neck snares via a transfemoral and a transjugular approach the catheter was severed into two pieces and retrieved percutaneously. 相似文献
943.
944.
Memorializes Harold Grier McCurdy, Kenan Professor Emeritus of Psychology at the University of North Carolina at Chapel Hill. McCurdy authored basic textbooks in the area of personality, including The Personal World: An Introduction to the Study of Personality (1961), and investigated the writings of William Shakespeare in The Personality of Shakespeare: A Venture in Psychological Method (1953). His involvement with the study of outstandingly creative individuals led McCurdy to try to better understand the sources of creativity by studying the childhoods of individuals who later displayed unquestioned genius. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
945.
946.
Reports an error in "Violent recidivism: Assessing predictive validity" by Marnie E. Rice and Grant T. Harris (Journal of Consulting and Clinical Psychology, 1995[Oct], Vol 63[5], 737-748). In this article, several errors are present on pp. 738 and 746. The corrections are listed in the erratum. (The following abstract of the original article appeared in record 1996-04934-001.) Until very recently, there has been little evidence of the ability of either clinicians or actuarial instruments to predict violent behavior. Moreover, a confusing variety of measures have been proposed for the evaluation of the accuracy of predictions. This report demonstrates that receiver operating characteristics (ROCs) have advantages over other measures inasmuch as they are simultaneously independent of the base rate for violence in the populations studied and of the particular cutoff score chosen to classify cases as likely to be violent. In an illustration of the value of this approach, the base rates of violence were altered with the use of data from 3.5-, 6-, and 10-year follow-ups of 799 previously violent men. Base rates for the 10-year follow-up were also altered by changing the definition of violent recidivism and by examining a high-risk subgroup. The report also shows how ROC methods can be used to compare the performance of different instruments for the prediction of violence. The report illustrates how ROCs facilitate decisions about whether, at a particular base rate, the use of a prediction instrument is warranted. Finally, some of the limitations of ROCs are outlined, and some cautionary remarks are made with regard to their use. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
947.
B. Beck D. H. Plant S. C. Grant P. E. Thelwall X. Silver T. H. Mareci H. Benveniste M. Smith C. Collins S. Crozier S. J. Blackband 《Magma (New York, N.Y.)》2001,13(3):152-157
In this article we report on progress in high magnetic field MRI at the University of Florida in support of our new 750MHz
wide bore and 11.7T/40cm MR instruments. The primary emphasis is on the associated rf technology required, particularly high
frequency volume and phased array coils. Preliminary imaging results at 750MHz are presented. Our results imply that the pursuit
of even higher fields seems warranted. 相似文献
948.
Johansson Boo; Grant Julia D.; Plomin Robert; Pedersen Nancy L.; Ahern Frank; Berg Stig; McClearn Gerald E. 《Canadian Metallurgical Quarterly》2001,20(1):33
The factor structure of health locus of control (Form A; K. A. Wallston, B. S. Wallston, & R. DeVellis, 1978) was examined in 420 octogenarians (M age?=?83.2 years), and the contributions of genetic and environmental factors to health-control beliefs in 141 octogenarian twin pairs (71 identical, 70 same-sex fraternal) were estimated. Factor analyses reproduced previously proposed factors (Internal, Chance, and Powerful Others). Associations between health-control beliefs and life satisfaction, depression, and other health-related measures (e.g., self-rated health, outpatient contacts, and hospitalization), were modest. Quantitative genetic analyses revealed significant shared environmental influence on the Chance subscale, and significant familiarity (attributable to a combination of genetic and shared environmental influences) on the Powerful Others subscale; there was no evidence of familiarity on the Internal subscale. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
949.
Allan Donnelly 《Network Security》2001,2001(3):5-6
High risk flaws used in most Domain Name System servers may be the most serious security threat yet found on the Internet, according to a US research centre report, which also said the vulnerabilities could disrupt the operations of every company that maintains a website. 相似文献
950.
The effect of ion implantation on the corrosion behaviour of pure iron—II. Chromium ion implantation
As part of a programme to investigate the effect of ion implantation on the corrosion behaviour of iron, pure iron specimens have been implanted with doses of 5 × 1014 and 2 × 1015 chromium ions/mm2. Using a three-sweep potentiokinetic polarization technique the corrosion behaviour of these surface alloy layers has been compared with that of conventional binary FeCr alloys containing from 0.8 to 12.5 wt%Cr. It was found that apart from a slight thickening of the air-formed oxide film induced by the ion implantation process, the polarization behaviour of conventional alloys and of alloys produced by ion implantation was qualitatively very similar. Quantitatively the low dose chromium implanted specimens corresponded to a conventional Fe-4.9%Cr alloy while the high dose chromium implanted specimens resembled conventional alloys containing x12.5%Cr. These data provide a sound basis for the interpretation of the potentiokinetic polarization and corrosion behaviour of the novel surface alloy layers which can be produced by ion implantation. 相似文献