نتایج جستجو برای: 3g 3
تعداد نتایج: 1814564 فیلتر نتایج به سال:
Nowadays, wireless packet data services are provided over Wireless MAN (WMAN) at a high data service rate, while 3G cellular networks provide wide-area coverage at a low data service rate. The integration of mobile WiMAX and 3G networks is essential, to serve users requiring both high-speed wireless access as well as wide-area connectivity. In this paper, we propose a cross-layer optimization s...
3G opens up doors for high-speed transfer of both voice and data. However, the actual adoption rate of 3G has remained below expectations. Thus, it is important to understand the interplay of actors involved in the adoption process of this technology. Prior research suggests that external variables like convenience, self efficacy, service quality and variety of service, perceived value and pric...
Background: The prevalence of hypertension in patients with type 2 diabetes (T2D) is approximately twice as much as healthy people. This study was designed to determine the effect of L-arginine supplementation on blood pressure in patients with T2D. Methods: In a double-blind randomized clinical trial, 75 T2D were randomly divided into three groups (3 g/d and 6g/d of L-arginine and placebo) for...
Neurexins are synaptic plasma membrane proteins encoded by three genes (NRXN1, -2, -3) with alternative promoters. Mutations in neurexin genes have been identified in different neurodevelopmental disorders, including autism. Recently, two point mutations altering the translation initiation site of NRXN1β (c.-3G>T and c.3G>T) have been described in patients with autism and mental retardation. In...
The Deployment of Third-Generation Mobile Services: A Multinational Analysis of Contributing Factors
Successful diffusion of 3G mobile is necessary for the provision of many advanced applications via the mobile platform such as mobile broadband Internet and video. The current deployment of 3G services is significantly more developed in some countries than others. Through a regression analysis of 106 observations, this study examines the factors affecting such differences. It was found that mul...
PURPOSE To investigate the prognostic role of thymidylate synthase (TS) polymorphisms in gastric cancer patients treated with radical surgery and fluorouracil-based adjuvant chemotherapy. EXPERIMENTAL DESIGN Ninety gastric cancer cases were identified among 187 patients previously enrolled in prospective case-control studies for disease susceptibility. Patients were genotyped for a G/C nucleo...
A set of 13 alkyl derivatives of 3-phenylpiperidine-2,6-dione were synthesized. Newly obtained compounds were investigated in vitro against HIV-1 and other selected viruses. The benzyl 3f and fluorophenyl 3g derivatives showed moderate protection against CVB-2 and the compound 3g also against HSV-1. Derivatives were tested also for their antibacterial and antifungal activity. The molecular stru...
One interpretation of Torelli’s Theorem, which asserts that a compact Riemann Surface X of genus g > 1 is determined by the g(g+1)/2 entries of the period matrix, is that the period matrix is a message about X. Since this message depends on only 3g− 3 moduli, it is sparse, or at least approximately so, in the sense of information theory. Thus, methods from information theory may be useful in re...
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