排序方式： 共有47条查询结果，搜索用时 31 毫秒
31.
Room for All? Comparing Criminology and Sociology Completion Rates Across Sex,Race, and Degree Level
Alexander H. Updegrove Maisha N. Cooper Helen Taylor Greene 《Journal of Criminal Justice Education》2018,29(2):267-289
This article presents findings based on an alternative to the Association of Doctoral Programs in Criminology & Criminal Justice data that allowed for examining the intersection of sex and race among criminology and criminal justice (CJ) and sociology program completers at the Bachelor’s, Master’s, and doctoral level. Five years’ worth of data from the Integrated Postsecondary Education Data System revealed that, on average, 85% of students who completed a doctoral degree in criminal justice were white, but only 74% of students who completed a doctoral degree in sociology were white. The average percentage of CJ degree completions accounted for by black Americans and Latinos also decreased by 9 and 15%, respectively, from the Bachelor’s level to the doctoral level. We discuss the need for universities to invest in student and faculty diversity, and conclude by highlighting the importance of building strong partnerships between predominantly white and minority-serving institutions. 相似文献
32.
This paper investigates the construction of a fuzzy functional observer for nonlinear systems with time-delays, and the application of the observer to estimate the state functions of the parallel distributed compensation controller for stabilizing the system. Two types of time-delays are considered: constant and time-varying delays with bounded time derivative. Stability conditions are obtained using Lyapunov–Krasovskii functional approach; and the conditions are transformed into linear matrix inequalities with equality constraints so that observer parameters can be calculated using the solution of these inequalities. Functional observer construction procedures are presented considering both constant and time-varying time-delays. Two examples, including one for obtaining a power system stabilizer for a single machine infinite bus system, are presented to illustrate effectiveness of the proposed design procedures. 相似文献
33.
Jamal Nazrul Islam 《Endeavour》1984,8(1):32-34
This article considers the very long-term evolution of the universe and predicts the major changes that are likely to occur on the basis of the standard ‘big-bang’ model of the universe. Some recent developments in cosmology and particle physics that have some bearing on this question are also discussed. 相似文献
34.
MOHAMMAD Tariqul Islam ZAINOL Abidin Abdul Rashid 《浙江大学学报(A卷英文版)》2006,7(10):1709-1716
INTRODUCTION The demand for mobile communication services is increasing at a rapid pace throughout the globe. The increasing demand for mobile communication ser- vices in a limited RF spectrum motivates the need for better techniques to improve spectrum utilization. Smart antenna system was adopted by ITU for the IMT-2000 or the Third Generation (3G) wireless networks due to its capability to improve channel capacity and interference suppression. A smart an- tenna system combines mult… 相似文献
35.
Training paraprofessionals such as teachers is one of many significant challenges facing Afghanistan??s educational system. This case study focuses on the innovations offered in that regard by BRAC, a large NGO based in Bangladesh that brought its many years of development experience to Afghanistan in 2002 and established itself there as the premier change agent on multiple developmental fronts. Through the use of structured and semi-structured interviews with stakeholders, classroom observations, and extensive document analysis, the authors conclude that by successfully modifying its teacher training programme in Bangladesh, BRAC has been able to develop an approach to teacher training in Afghanistan that may become a showcase example of effective South-South partnership in education. The article concludes by urging adoption of BRAC??s innovations in teacher training and recruitment by other developing nations facing similar challenges. 相似文献
36.
Jiajun Guo Islam A. Y. M. Atiquil Teo Timothy Spector Jonathan Michael 《Instructional Science》2019,47(5):609-625
Instructional Science - This study focuses on visual creativity and how it can be supported with computer technologies and thereby be used to support learning and instruction. However, studies... 相似文献
37.
Tucker-Raymond Eli Lewis Naama Moses Maisha Milner Chad 《Journal of Science Education and Technology》2016,25(6):1025-1041
Journal of Science Education and Technology - Access to science, technology, engineering, and mathematics fields serves as a key entry point to economic mobility and civic enfranchisement. Such... 相似文献
38.
Three studies examined the links between psychological control and prosociality in middle childhood, and the role of religiosity as a moderator. Study 1 (101 Israeli Jewish families, ages 6–9, 50% girls) found a significant interaction, with a negative association between maternal psychological control and children's prosociality in secular but not in religious families. Study 2 (161 Israeli Jewish families, ages 6–12, 48% girls) replicated this interaction for mothers using a continuous religiosity measure. Study 3 (64 Arab Muslim Israeli families, ages 6–8.5, 50% girls) also found a significant interaction, with a positive link between psychological control and prosociality seen at higher, but not at lower, religiosity levels. The findings suggest that religiosity may alter the meaning and consequences of parenting practices. 相似文献
39.
The objective of perforating the petroleum wells is to maximize well productivity. A good connectivity between the wellbore and formation can lead up to achieve that goal. However, the conventional method of perforation, which basically involves the use of explosive charges, rarely meets the expected well productivity. It is mainly because of the formation of a region of reduced permeability around the perforation tunnel. To offset such and several other shortcomings of present practices, a new technique is required, the highlight of this paper. Described as the ‘perforation by drilling’ (PD), this new technique is examined and compared for its performance with that of another technique, ‘Perforation by Shooting’ (PS). For this, the experimental and numerical results of the PS technique on cylindrical sand samples of varying amounts of strength and porosity are studied. Moreover, in order to achieve a so-called ‘perfect perforation’, results are compared with the ‘Casting technique’. Three different samples were selected for the measurement of fluid flow rate and differential pressure across the perforation using a ‘geotechnical digital system’ (GDS), which is a triaxial testing device. Profiles such as fluid flow rate with a change in differential pressure and pressure build-up data with time, signify that the PD technique can achieve maximum wellbore productivity when compared to the PS technique. Results also indicate that at a 100 kPa differential pressure, the PS, PD and Casting techniques can achieve 0.20, 0.65 and 1.00 mL/s fluid flow rates respectively across a sample. The paper also implements a 1-D time dependent porous media flow model to simulate flow across the perforated cylindrical samples created by the PS, PD and Casting techniques. Results show a good consistency between the experimental and numerical approaches. 相似文献
40.
Claudia Mitchell David Dillon Teresa Strong‐Wilson Kathleen Pithouse Faisal Islam Kevin O’Connor 《Changing English: An International Journal of English Teaching》2010,17(1):45-55
In this article, we focus on the use of the visual for reflection in ‘alternative’ pre‐service teacher education and, in particular, we address the question: How and what can we learn about teacher education using the visual? By way of illustration, we focus on the use of pre‐service teachers’ photographs in a public exhibition, participatory video documentary production and pre‐service teachers’ use of photographs in their professional teaching portfolios. The article draws from research done in relation to three alternative pre‐service teacher education projects based at McGill University in Canada and the University of KwaZulu‐Natal in South Africa. 相似文献