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   

Mixed control of uncertain jumping time-delay systems     

Magdi S. Mahmoud  Fouad M. AL-Sunni  Yan Shi   《Journal of The Franklin Institute》2008,345(5):536-552

In this paper, we investigate a class of linear continuous-time systems with Markovian jump parameters. An integral part of the system dynamics is a delayed state with time-varying and bounded delays. The jumping parameters are modeled as a continuous-time, discrete-state Markov process. Employing norm-bounded parametric uncertainties and utilizing the second-method of Lyapunov, we examine the problem of designing a mixed controller which minimizes a quadratic performance measure while satisfying a prescribed -norm bound on the closed-loop system. It is established that sufficient conditions for the existence of the mixed controller and the associated performance upper bound could be cast in the form of linear matrix inequalities.  相似文献   

A new active R bandpass filter     

Ahmed M. Soliman  Mahmoud Fawzy 《Journal of The Franklin Institute》1978,306(2):159-163

A new active R filter which realizes a second order bandpass transfer function is given. The network employs only resistors and two operational amplifiers. Sensitivities to all passive and active circuit components are very low. Design equations are given and experimental results are also included.  相似文献   

An Investigation of User Comments on Facebook Pages of Trinidad and Tobago’s Indian Music Format Radio Stations     

Shaheed Nick Mohammed  Avinash Thombre 《Journal of Radio & Audio Media》2017,24(1):111-129

Starting in the 1990s, the Caribbean two-island nation of Trinidad and Tobago witnessed the establishment of several Indian-music format radio stations, most of which now stream their content on the World Wide Web or otherwise make their content available beyond the range of their terrestrial radio transmitters. The convergence of traditional terrestrial radio with audio streaming technology combined with the spread of high speed broadband connections has expanded the audience of a typical radio station from a few kilometers to a globally dispersed set of listeners who often include those physically displaced from their native cultural programming. The present investigation examines the Facebook comments of domestic and foreign listeners to Indian-music format radio stations from the Republic of Trinidad and Tobago.  相似文献   

Special needs education in the United Arab Emirates (UAE): a systems perspective     

Mohammed Arif  Eman Gaad 《Journal of Research in Special Educational Needs》2008,8(2):111-117

In order to obtain maximum benefits from the educational system, it is imperative that the system should work as a unified coherent unit. Gaad, Arif and Scott (2006) conducted the systems analysis of the United Arab Emirates' (UAE) general education system. They analysed three components of the system in order to assess the development, delivery and evaluation. This paper utilises the same framework to analyse the special needs education (SEN) system in the UAE. Data for the research were collected through observations and semi-structured interviews. Analysis of the data identifies some possibilities for improvement. In the area of development, more teaching and supplemental material specific to special needs education needs to be developed. Currently, teachers are working with what is known as the 'para curriculum'. It is based on the regular textbook; with chapters that are difficult being simplified or removed. In the area of delivery, more training would be beneficial to teachers. The monitoring and evaluation component's analysis points out that the evaluation instrument used currently needs to be modified for special needs education monitoring and additional resources in the area of special needs education would required.  相似文献   

Hyperhydration using different hydration agents does not affect the haematological markers of the athlete biological passport in euhydrated volunteers     

Ioanna Athanasiadou  Sven Christian Voss  Wesal El Saftawy  Mohammed Al-Maadheed  Georgia Valsami  Costas Georgakopoulos 《Journal of sports sciences》2020,38(16):1924-1932

ABSTRACT

Athlete Biological Passport (ABP) is an indirect approach, implemented by WADA, aimed at detecting blood manipulation based on abnormal changes in haematological markers. Cases report the use of hyperhydration as masking method during anti-doping urine sample collection which could potentially mask suspicious fluctuations on ABP profiles. This study investigated the hyperhydration effect on haemoglobin concentration, reticulocyte percentage and OFF-hr score (an algorithm based on haemoglobin concentration and reticulocyte percentage), with and without recombinant human erythropoietin (rHuEPO) administration. A five-week clinical study performed; Baseline and rHuEPO Phase. Water and a sports drink were used as hyperhydration agents. To examine the hyperhydration effect on the normal ABP profile per volunteer, hyperhydration was implemented at 0, 24 and 48 hours during the baseline. During the rHuEPO phase, volunteers received Epoetin beta (3000 IU) with hyperhydration to be implemented at 0, 24 and 48 hours after drug administration. Blood and urine samples were collected and analysed according to WADA guidelines. No significant effect on ABP markers was observed due to hyperhydration at any time during the study. Pre- and post-hyperhydration data were not statistically different compared to individual baseline data. In conclusion, hyperhydration does not affect the ABP haematological markers under the examined conditions.  相似文献