Qatar University Institutional Repository: Recent submissions
Now showing items 121-140 of 28747
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Combined Plyometric and Short Sprint Training in U-15 Male Soccer Players: Effects on Measures of Jump, Speed, Change of Direction, Repeated Sprint, and Balance
( Frontiers Media S.A. , 2022 , Article)This study examined the effect of 8 weeks of biweekly combined plyometric and short sprint training into the typical within-season training schedule of youth male soccer players. Participants were allocated at random to ... -
Fitness, Fatness, and Academic Attainment in Male Schoolchildren from a Soccer Academy
( MDPI , 2022 , Article)This investigation explored the association between anthropometric measures, fitness, and academic attainment (mathematics and science grade point average [GPA]) in male schoolchildren from a soccer academy. Thirty-one ... -
Postoperative recovery after suspension suture placement at the site of esophagojejunal anastomosis after total gastrectomy: Comparison of two surgical techniques.
( IOS Press , 2024 , Article)Despite improvements, survival rates for gastric cancer remain low, even in developed countries, confirming the role of primary and secondary prevention. This study aims to demonstrate the role of additional suspension ... -
الفصل التعسفي بسبب غياب العامل ما بين قصور إجراءات التأديب الشكلية وضعف إجراءات التأديب الموضوعية : دراسة تحليلية مقارنة في ضوء التعليق على حكم محكمة التمييز القطرية رقم 116 لسنة 2017
( مركز الدراسات القانونية والقضائية بوزارة العدل في دولة قطر , 2024 , Article)عالج المشرع القطري الضمانات القانونية التي تحمي العامل من تعسف رب العمل من توقيع أي جزاء تأديبي عليه في الفصل الخامس من قانون العمل القطري تحت إطار سلطة صاحب العمل التأديبية حيث أجاز المشرع القطري في المادة (61) لرب العمل ... -
مدى استقلال الاتحادات الرياضية الوطنية : دراسة مقارنة في القانونين القطري والفرنسي
( مركز الدراسات القانونية والقضائية بوزارة العدل في دولة قطر , 2024 , Article)يتمثل الهدف من هذا البحث في بيان حدود استقلال الاتحادات الرياضية الوطنية على المستويين الداخلي والخارجي: حيث يطرح هذا الاستقلال على المستوى الداخلي في مواجهة الدولة خصوصا، وعلى المستوى الخارجي في مواجهة الاتحادات الرياضية ... -
الاتجاهات الحديثة للجزاءات الجنائية البديلة في التشريعات القطرية والمقارنة
( مركز الدراسات القانونية والقضائية بوزارة العدل في دولة قطر , 2024 , Article)تقوم السياسة الجنائية على مبدأ الشرعية بأنه لا جريمة ولا عقوبة إلا بنص، والقانون يتطور مع الزمن فما كان مقبولا وسائدا في فترة زمنية يصبح متغيرا مع مرور الزمن لإيجاد بدائل تحقق التوازن بين فكرة الجزاء والعقاب وحقوق الأفراد ... -
Cooperative wireless sensor networks for green internet of things
( Association for Computing Machinery , 2012 , Conference Paper)Green internet of things are investigated by studying energy efficiency in wireless sensor networks. A cooperative multihop data transmission approach is presented and analyzed. Significant energy savings are achieved with ... -
Next-Generation Environment-Aware Cellular Networks: Modern Green Techniques and Implementation Challenges
( IEEE , 2016 , Article)Over the last decade, mobile communications have been witnessing a noteworthy increase of data traffic demand that is causing an enormous energy consumption in cellular networks. The reduction of their fossil fuel consumption ... -
Fair optimization of video streaming quality of experience in LTE networks using distributed antenna systems and radio resource management
( John Wiley and Sons Ltd , 2014 , Article)Network quality of experience (QoE) metrics are proposed in order to capture the overall performance of radio resource management (RRM) algorithms in terms of video quality perceived by the end users. Metrics corresponding ... -
Enhancing the QoS of real-time video streaming over LTE MBMS using D2D communications
( Association for Computing Machinery , 2012 , Conference Paper)Real-time video streaming over LTE multicast and broadcast multimedia services (MBMS) is investigated. The impact of device-to-device (D2D) communications in enhancing the quality of service (QoS) and reducing energy ... -
An energy-efficient M2M communication method for leakage detection in underground water pipes
( Association for Computing Machinery , 2012 , Conference Paper)An application of machine-to-machine (M2M) communication for leakage detection in underground water infrastructures is considered. A mobile sensor immersed in the water pipe is assumed to communicate with relay nodes on ... -
LTE BS placement optimization using simulated annealing in the presence of femtocells
( VDE VERLAG GMBH , 2014 , Conference Paper)In this paper, we address the phase of radio network planning and optimization (RNPO) related to base station (BS) deployment in the presence of femtocell access points (FAPs). After determining an approximate number of ... -
Multi-operator collaboration for green cellular networks
( Springer , 2016 , Book chapter)This chapter investigates the collaboration between multiple mobile operators for optimizing energy efficiency in cellular networks. Most of the works in the literature optimize the performance of a given cellular network, ... -
Statistical link budget analysis approach for LTE cellular network dimensioning
( VDE VERLAG GMBH , 2014 , Conference Paper)Radio network dimensioning is an essential step towards designing a cellular network and has traditionally relied on a pragmatic approach to capture the effects of fading and shadowing on the system interference. However, ... -
Radio resource management in integrated wired/wireless LTE femtocell networks
( Springer , 2014 , Article)In this paper, radio resource management (RRM) in LTE femtocell networks is investigated in an integrated wired/wireless environment. In such a scenario, femtocell access points (FAPs) are assumed connected via wired links ... -
Planning future cellular networks: A generic framework for performance quantification
( VDE VERLAG GMBH , 2013 , Conference Paper)The new pressing expectations from emerging cellular systems such as energy efficiency, heterogeneity of cell sizes and base station types, focus shift to capacity from coverage, and demand for homogeneity of service ... -
A genetic algorithm solution for the operation of green LTE networks with energy and environment considerations
( Springer , 2012 , Conference Paper)The Base Station (BS) sleeping strategy has become a well-known technique to achieve energy savings in cellular networks by switching off redundant BSs mainly for lightly loaded networks. Besides, the exploitation of ... -
Air quality monitoring and analysis in Qatar using a wireless sensor network deployment
( IEEE , 2013 , Conference Paper)In this paper, an actual deployment of a wireless sensor network is described. The purpose of the sensor network is to monitor and analyze air quality in Doha. Small scale wireless sensor stations communicate with a backend ... -
Cooperative ad hoc networks for energy and delay efficient content distribution with fast channel variations
( John Wiley and Sons Ltd , 2012 , Article)Cooperative ad hoc networks for the efficient distribution of content of common interest are studied in the case of fast channel variations. Mobiles are grouped into cooperative clusters for the purpose of receiving the ... -
On the extension of traditional resource allocation algorithms in LTE-A to joint UL-DL scheduling with FDD carrier aggregation
( IEEE , 2014 , Conference Paper)Through and spectral efficiency maximization are two of the most challenging issues to be addressed by current and future cellular networks. To achieve these goals however, radio resources need to be utilized in a coordinated ...