Ninth grade, observes Ruth Curran Neild, marks a critical juncture in American schooling. Students who manage the academic demands of the transition to high school have a high probability of graduating four years later. But those who do not-who fail to earn as many credits as they should during ninth grade-face a substantially elevated risk of dropping out of high school. Neild examines four th...

In this paper we present the behavior of JPEG2000 coding scheme over noisy or congested communication channels and highlight the cost analysis aspect. Two error schemes are considered including bit errors and packet dropping effects. Two bit error methods are used, consisting of flipping or dropping the bits, and various packet sizes are put to the test of packet dropping. Extensive performance...

Quasi-Monte Carlo (QMC) points are a substitute for plain Monte (MC) that greatly improve integration accuracy under mild assumptions on the problem. Because QMC can give errors o(1/n) as $$n\rightarrow \infty $$ , and randomized versions attain root mean squared o(1/n), changing even one point change estimate by an amount much larger than error would have been worsen convergence rate. As resul...

Lambda-lifting a functional program transforms it into a set of recursive equations. We present the symmetric transformation: lambda-dropping. Lambda-dropping a set of recur-sive equations restores block structure and lexical scope. For lack of scope, recursive equations must carry around all the parameters that any of their callees might possibly need. Both lambda-lifting and lambda-dropping t...

the number of students who can not complete school programs is a serious problem facing many educational systems in all educational levels . drop oui and repetition are one of the most common matters that many educators and researchers interest to study it. there are many reasons on the retention and non-completion patterns, but it can find rarely a philosophical viewpoint on the problem. the a...

Recently, several new packet dropping mechanisms have been proposed for the Internet routers to achieve fair bandwidth allocation among the adaptive TCP applications and the emerging constant bit rate (CBR) multimedia applications which do not adapt their traffic rates. However, these mechanisms lead to waste of router bandwidth which in turn reduces throughput of contending TCP applications, w...

Polydimethylsiloxane (PDMS) has been synthesized by ring-opening polymerization of octamethylcyclotetrasiloxane (D4) in microemulsion with acidic catalyst. The structure and properties of microemulsion were characterized by Transmission Electron Microscopy (TEM), Fourier Transform Infrared Spectroscopy (FT-IR), Photo Correlation Spectroscopy (PCS). The effect of the variation in pH value, amoun...