نتایج جستجو برای: جدایه های crn
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BACKGROUND Many studies have provided evidence for an association between obesity, physical inactivity, and western diet as risk factors for colorectal cancer (CRC). Few studies directly address the association between type 2 Diabetes Mellitus (DM) and the risk of colorectal lesions at specific anatomic locations. METHODS 2,663 subjects with a previous history of adenoma(s) and removal of all...
DNase II enzymes are acidic endonucleases that have been implicated in mediating apoptotic DNA degradation, a critical cell death execution event. C. elegans genome contains three DNase II homologues, NUC-1, CRN-6, and CRN-7, but their expression patterns, acting sites, and roles in apoptotic DNA degradation and development are unclear. We have conducted a comprehensive analysis of three C. ele...
Model-based design constructs physical systems in two stages. First, a ea~al friction network (CRN) of quantities that entails the desired behavior is constructed from a domain model. Second, a physical system is designed by assembling components such that all the causal relations specified by the CRN are imposed. The Compositional Model-based Design method, CMD, simplifies the design of comple...
سابقه و هدف: سلامت خاک از مولفه های اصلی در دستیابی به سامانه های کشاورزی پایدار بوده که شدت تحت تاثیر عملیات زراعی مانند خاکورزی قرار می گیرد. را توان با استفاده پارامترهای فیزیکی، شیمیایی بیولوژیکی قالب الگوریتم های مشخص کمّی کرد. نتیجه، بررسی وضعیت کیفی باروری مدیریتی مختلف زمین جهت استقرار مناسب برای تولید بهینه نظام‌های امری ضروری می باشد. چارچوب ارزیابی مدیریت SMAF 1 عنوان ابزاری قدر...
Networking cognitive radios and nodes from primary system (PS) results in a heterogeneous coexisting multiradio wireless network, so that significant network throughput gain can be achieved. However, by investigating cognitive radio network (CRN) architecture, the links in CRNs are unlikely to support complete security check due to link dynamics, opportunistic availability, and uni-directional ...
In this paper, we consider a cognitive relay network (CRN) in which the primary receiver (PR) is protected by peak transmit power P̄ST and/or peak interference power Q constraints. In addition, the interference effect from the primary transmitter (PT) is considered to show its impact on the performance of the CRN. We investigate the outage probability (OP) and outage capacity (OC) of the CRN by ...
This chapter describes state-of-the art techniques to improve performance of spectrum sensing and spectrum management in Cognitive Radio Networks (CRN) by leveraging services available in cloud computing platforms. CRNs are capable of adaptive learning and reconfiguration to provide consistent communications in dynamic environments. However, ensuring adaptation and learning in CRN will require ...
In cognitive radio networks (CRN), resource should dynamically be assigned to the users with respect to sensed radio atmospheres. Many works has been done for dynamic allocation but it is not practically easy because the secondary network is very difficult to know the right knowledge of dynamic radio atmospheres in CRN. In this object we study the different methods of dynamic resource allocatio...
The development of Clinical Research Networks (CRN) has been central to the work conducted by Health Departments and research funders to promote and support clinical research within the NHS in the UK. In England, the National Institute for Health Research has supported the delivery of clinical research within the NHS primarily through CRN. CRN provide the essential infrastructure within the NHS...
CONTEXT Treatment for depression can be expensive and depression can affect the use of other medical services, yet there is little information on how depression affects the prevalence of cost-related medication nonadherence (CRN) in elderly patients and patients with disabilities. OBJECTIVE To quantify the presence of CRN in depressed and nondepressed elderly Medicare beneficiaries and noneld...
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