A popular trend in modern computing is the migration from desktop computing to a more distributed environment where individual devices communicate with each other over a network. Such devices, especially those in the wireless domain, are typically limited in resources, most importantly size and power. It is therefore important to be able to implement network protocols efficiently, resulting in ...

As we know a microprocessor is a general purpose IC which follow the instructions given to it, and the instructions set for the microprocessor designed such a way that it and handle any type of computations. Different type of architectures are available in the market like CISC, RISC, ARM etc. all of them have their own different approaches to perform computations. Our concept for this paper com...

In order to study the role of metacognition and self-regulation in student learning, college students were asked to solve problems in mathematics using an ITS assisting metacognition at the forethought stage. Activity involved selecting relevant facts and strategies and connecting them by arrows. It is found that patterns of arrow drawing have significant correlates in student performance and c...

The Massive Array of Idle Disks (MAID) technique is an effective energy saving schemes for parallel disk systems. The goal MAID is to skew I/O load towards a few disks so that other disks can be transitioned to low power states to conserve energy. I/O load skewing techniques like MAID inherently affect reliability of parallel disks because disks storing popular data tend to have high failure ra...

Driven by rapid ongoing advances in computer hardware, neuroscience and computer science, Artificial Brain research and development are blossoming. This article constitutes the first half of a two-part world survey of artificial brain projects: this part dealing with large-scale brain simulations, and the second part with biologically inspired cognitive architectures (BICAs). The large-scale br...

from sep. 1984 to aug. 1990,99 patients were treated for ureteral stone using the urekroscope. in five patients ureteroscopy was repeated for a second stone. in one patient the procedure was diagnostic in nature and in the rest of the patients it had a curative value. in 60 patients the stone was removed by electrohydraulic and basket combination and in25 cases, dilatation alone was enough. rat...

b a c k ground: over the past decades, instruments and techniques of the transsphenoidal approach have improved greatly. all of these procedures, whether microscopic or endoscopic, must pass through the sphenoid sinus to reach the lesions. the sphenoid sinus is surrounded by several vital anatomical structures. knowing the details of the anatomy of the sphenoid sinus and the extent of pneumatiz...

fennel (foeniculum vulgare mill.) is an industrial medicinal plant with different pharmaceutical and food applications. in this study, the leaf essential oil composition of 12 iranian accessions of fennel collected from different geographical regions was assessed. the essential oil yield of fennel leaves ranged from 0.65% (varamin accession) to 2.03% (tabriz accession). trans-anethole, fenchone...

background: there is a little data on coxiella burnetii (q fever agent) in iran. ticks may play a significant role in the transmission of c. burnetii among animals . the aim of this study was to use polymerase chain reaction for the detec­tion of c. burnetii in ticks collected in southeast iran. methods : one hundred and sixty ticks were collected from domestic animals in three localities of ke...