Transnational public sector knowledge networks: Knowledge and information sharing in a multi-dimensional context     

Sharon S. Dawes  Mohammed A. Gharawi  G. Brian Burke 《Government Information Quarterly》2012

Sharing of knowledge, information, and practices across cultural and national boundaries has become a means to address critical global problems. As government agencies increasingly collaborate with international counterparts on these issues, transnational knowledge and information sharing networks grow in importance as mechanisms for collaboration. This paper explores the nature of transnational public sector knowledge networks (TPSKNs) and identifies critical contextual factors that shape their performance. In these networks, each participating organization operates within complex national, organizational, and information contexts. The contextual differences between participants produce distances in culture, politics, intentions, organizational factors, relationships, knowledge, resources, geography, and technology. These distances influence their ability to engage in the processes and interactions that are essential to network performance. The paper concludes with a conceptual dynamic model that accounts for the relationships among these factors that can guide further research in understanding knowledge and information sharing across national and cultural boundaries.  相似文献   

Stress intensity factors under combined bending and torsion moments     

Al?Emran?IsmailEmail author  Ahmad?Kamal?Ariffin  Shahrum?Abdullah  Mariyam?Jameelah?Ghazali  Mohammed?Abdulrazzaq  Ruslizam?Daud 《浙江大学学报(A卷英文版)》2012,13(1):1-8

This paper discusses stress intensity factor (SIF) calculations for surface cracks in round bars subjected to combined torsion and bending loadings. Different crack aspect ratios, a/b, ranging from 0.0 to 1.2 and relative crack depths, a/D, ranging from 0.1 to 0.6 were considered. Since the loading was non-symmetrical for torsion loadings, a whole finite element model was constructed. Then, the individual and combined bending and torsion loadings were remotely applied to the model. The equivalent SIF method, F*_EQ, was then used explicitly to combine the individual SIFs from the bending and torsion loadings. A comparison was then carried out with the combined SIF, F*_FE, obtained using the finite element analysis (FEA) under similar loadings. It was found that the equivalent SIF method successfully predicted the combined SIF for Mode I. However, discrepancies between the results determined from the different approaches occurred when F _III was involved. It was also noted that the predicted F*_FE using FEA was higher than the F*_EQ predicted through the equivalent SIF method due to the difference in crack face interactions.  相似文献   

Contextual and pedagogical considerations in teaching for forgiveness in the Arab world     

Ilham Nasser  Mohammed Abu-Nimer  Ola Mahmoud 《Compare》2014,44(1):32-52

This study was conducted among Arab teachers in four countries in the Middle East (Jordan, Lebanon, Egypt and Palestine) to examine their views and methods on teaching for forgiveness in their classrooms. A total of 87 teachers in K-12 classrooms participated in semi-structured interviews as part of a larger study on teaching for forgiveness in the region. Thematic analyses of interviews suggested that teachers created opportunities to model and teach forgiveness as part of their civics education curriculum. They also expressed eagerness for instructional guidance and curriculum materials to systematically teach forgiveness in schools. The strength of religion and historical religious figures as positive sources for teaching forgiveness was also evident. Findings highlight the need to integrate education for peace and forgiveness in the education system, especially as a result of recent political developments in the Middle East, and to provide methods to assist teachers to do so in their classrooms.  相似文献   

Development of lanthanum strontium cobalt ferrite composite cathodes for intermediate- to low-temperature solid oxide fuel cells     

Nurul Akidah BAHARUDDIN  Hamimah Abd RAHMAN  Andanastuti MUCHTAR  Abu Bakar SULONG  Huda ABDULLAH 《浙江大学学报(A卷英文版)》2013,14(1):11-24

Solid oxide fuel cells(SOFCs) offer high energy conversion,low noise,low pollutant emission,and low processing cost.Despite many advantages,SOFCs face a major challenge in competing with other types of fuel cells because of their high operating temperature.The necessity to reduce the operational temperature of SOFCs has led to the development of research into the materials and fabrication technology of fuel cells.The use of composite cathodes significantly reduces the cathode polarization resistance and expands the triple phase boundary area available for oxygen reduction.Powder preparation and composite cathode fabrication also affect the overall performance of composite cathodes and fuel cells.Among many types of cathode materials,lanthanum-based materials such as lanthanum strontium cobalt ferrite(La1-xSrxCo1-yFeyO3- have recently been discovered to offer great compatibility with ceria-based electrolytes in performing as composite cathode materials for intermediate-to low-temperature SOFCs(IT-LTSOFCs).This paper reviews various ceria-based composite cathodes for IT-LTSOFCs and focuses on the aspects of progress and challenges in materials technology.  相似文献   

Bibliographical activities of the Arab Countries of North Africa     

Mohammed M. Aman 《International Information and Library Review》2013,45(3):263-273

The kind and size of a library determines the need to collect and the method of controlling government publications. New Zealand libraries tend to handle these publications like any other book with the exception of official records and statistics. As a rule, public, rather than academic libraries, are the designated depositories. In comparing the concept of New Zealand libraries to that of the University of Oregon Library concerning government publications, I found that New Zealand libraries collect and store official and statistical publications and give them partial use; most government publications are integrated into the general collection (use is not known), and few libraries have separate government publication sections with special librarians governing the collection. On the other hand the University of Oregon collects all types of government publications for optimum use; many have been integrated into the general collection (use is not known); and a separate documents section is open to the public with several librarian specialists in attendance. Government publications in the general collection are not, as a rule, recognized as government publications by the public, but those publications are readily accessible. Many government publications at the University of Oregon Library are housed in the general collection, but since 1974 publications of the United States, Canada and many international organizations are shelved in the Documents Section. Use of the various classification schemes has proved successful; however, changes and improvements should be considered frequently to make the government publications collection the best able to serve the public.  相似文献   

Egyptian university libraries     

Mohammed M. Aman 《International Information and Library Review》2013,45(2):175-181

The aim of this article is to show the ways of implementing information technology into education in Kazakhstan based on the work of the Kazakhstan Institute of Management, Economics, and Strategic Research under the President of the Republic of Kazakhstan (KIMEP).  相似文献   

Teacher-student development in mathematics classrooms: Interrelated zones of free movement and promoted actions     

Mohammed Abdul Hussain  John Monaghan  John Threlfall 《Educational Studies in Mathematics》2013,82(2):285-302

This paper applies and extends Valsiner’s ‘zone theory’ (zones of free movement and promoted actions) through an examination of an intervention to establish inquiry communities in primary mathematics classrooms. Valsiner’s zone theory, in a classroom setting, views students’ freedom of choice of action and thought as mediated by the teacher. The extension of this theory adds that teachers’ freedom of choice of action and thought is mediated by ‘significant others’ and also by the actions of students with new freedoms. The paper presents necessary theoretical constructs and provides extracts from lessons and from teacher-teacher collaboration to illustrate the theoretical extension.  相似文献   

A security-embedded infrastructure for Tele-Traffic Speed Control     

Mohammed A. Khasawneh  Mohammad I. Malkawi  Sa’ed M. Hayajneh  Hadeel Y. Qasaimeh 《Journal of The Franklin Institute》2009,346(5):431-448

In this paper we introduce a novel approach, relying on intelligent engineering, whereby the maximum speed limit at which vehicles on the road can cruise is controlled from some central or distributed facility. The system, as designed, leverages the use of the ubiquitous cellular infrastructure to cut down the costs involved that would otherwise accrue as a result of the need to build a dedicated traffic control system.In the new system maximum speed limits are transmitted from a Central Control Facility (CCF) to all stretches of roads and highways dispersed across urban areas in a highly dynamic manner. The system uses information arriving via a dynamic feedback system on prevailing weather conditions, road conditions, and bulk of traffic, amongst others, before it would broadcast maximum speed limit information to various destinations. When deployed in its final release, this will be done using a highly automated system with little human intervention.The work presented in this paper elaborates the TTC Network Design and RSU Network Distribution for the Tele-Traffic Speed Control System, to remotely manage, enforce, and control the maximum speed limit allowed on road stretches in rural and urban areas for different vehicle categories.The new system has been deployed successfully in a laboratory controlled environment on three vehicle categories; one category representing passenger vehicles, another buses and commuter transport, while the third representing trucks and freight traffic. It is expected that when the system is fully deployed on the wireless infrastructure, speed-related traffic accidents will witness a drop by more than 65-70% according to known accident statistics.  相似文献   

Stability of total and free prostate specific antigen in serum submitted to intermittent cold storage conditions     

Asmahan A. EL Ezzi  Mohammed A. EL-Saidi 《Indian journal of clinical biochemistry : IJCB》2009,24(2):166-174

The goal of this study was to determine the stability of Total Prostrate Specific antigen (PSA-T) and Free Prostrate Specific Antigen (PSA-F) in archival serum stored at 4°C and −20°C and subjected to temperature shift due to interruption in power supply. Our study showed that PSA-T was stable up to 285 days and PSA-F was stable for 158 days under these conditions. Since power supply interruption is an unavoidable problem in developing nations, our study has implication on the validity of measurement of PSA-T and PSA-F in serum that was not properly stored due to emergency situations and for certain types of retrospective studies.  相似文献   

Attitudes and Psycholinguistic Aspects of First Language Maintenance among Russian‐Jewish Immigrants in Israel     

Salim Abu‐Rabia 《教育心理学》1999,19(2):133-148

ABSTRACT This study investigated the social attitudes and academic skills in Russian and Hebrew of Russian‐Jewish immigrant students in northern Israel. The Russian community in Israel is unique in that its members maintain their language and culture and always show their singularity as a strong cohesive ethnic group. A total of 60 participants took part in the study. They answered an attitude questionnaire and the following tests in Russian and Hebrew: working memory, oral cloze, visual condition, phonological condition, orthographic condition, word attack, word identification and spelling test. Further, for validation of attitudes results beyond self‐report questionnaires, 30 open interviews were conducted. The results indicated that these Russian new immigrants were inslrumentally oriented towards learning Hebrew. They possessed moderate anxiety and did not learn Hebrew for army service purposes or to integrate into Israeli society. Their attitude towards the class‐learning situation was not very positive. The results of the linguistic skills in Russian and Hebrew indicated superiority of the former. Regression procedures indicated that only the spelling test score of the Russian language was a significant predictor of Hebrew word recognition.  相似文献