Studies examining friendships among Mexican-American adolescents have largely focused on their potentially negative influence. The current study examined the extent to which deviant and achievement-oriented friend affiliations are associated with Mexican-American adolescents' school adjustment and also tested whether support from friends and parents moderates these associations. High school stu...

We analyze the intermediate buffer requirements in a tandem queue where service times of each customer are deterministically correlated between the servers and arbitrarily distributed between customers. The major issue at hand is the determination of intermediate buffer sizes assuring no blocking when the arrivals pattern is arbitrary and unpredictable. The analysis shows that the worst arrival...

Concurrent C0 is an imperative programming language in the C family with session-typed messagepassing concurrency. The previously proposed semantics implements asynchronous (non-blocking) output; we extend it here with non-blocking input. A key idea is to postpone message reception as much as possible by interpreting receive commands as a request for a message. We implemented our ideas as a tra...

© 2014 Dong-Won Seo 609 http://dx.doi.org/10.4218/etrij.14.0113.0812 Even though many computational methods (recursive formulae) for blocking probabilities in finite-capacity M/D/1 queues have already been produced, these are forms of transforms or are limited to single-node queues. Using a distinctly different approach from the usual queueing theory, this study introduces explicit (transformfr...

Writing data within user or operating system memory often encounters the classic read-before-write problem whereby the page written to must first be read from the backing store, effectively blocking the writing process before modifications are made. Unfortunately, the large gap between memory and storage access performance adversely affects workloads that require substantial readbefore-write op...

to compare intubating conditions and hemodynamic changes between bonfils intubation fiberscope and macintosh laryngoscopy without administering neuromuscular blocking drugs (nmbds). methods: in this randomized controlled trial,80 male and female patients, scheduled for elective surgery, aged 15 to 60 years, asa class ii or i, non-obese, non smokers, without anticipated difficult intubation; wer...

With the increasing uniprocessor and SMP computation power available today, interprocessor communication has become an important factor that limits the performance of cluster of workstations. Many factors including communication hardware overhead, communication software overhead, and the user environment overhead (multithreading, multiuser) affect the performance of the communication subsystems...

Recent research on Concurrent Multipath Transfer using SCTP multihoming (CMT) proposed various retransmission policies to minimize the negative impacts of receiver buffer (rbuf) blocking that occurs during congestion. Here we investigate CMT’s throughput degradation caused by rbuf blocking during complete and/or short-term network failures. To improve CMT’s performance during failure, we introd...

This article investigates and evaluate a handover exchange scheme between two secondary users (SUs) moving in different directions across the handover region of neighbouring cell in a cognitive radio network. More specifically, this investigation compares the performance of SUs in a cellular cognitive radio network with and without channel exchange systems. The investigation shows reduced hando...

We present a distributed wavelength assignment algorithm named Priority-based Wavelength Assignment (PWA) for the contention resolution problem in buffer-less burst optical networks without wavelength conversion capability. Simulation results show that the PWA can effectively reduce the blocking probability and increase the performance of burst optical networks compared to previous algorithms s...