5324 research outputs found
Sort by
Very long chain ceramides interfere with C16- ceramide-induced channel formation: A plausible mechanism for regulating the initiation of intrinsic apoptosis
No full textPerera,Meenu:University of Maryland, College Par
No full textThis paper presents a new technique to estimate the transition probabilities used in the Markovian-based pavement
performance prediction models. The proposed technique is based on the ‘back-calculation’ of the discrete-time Markov
model using only two consecutive cycles of pavement distress assessment. The transition probabilities, representing the
pavement deterioration rates, are the main elements of the Markov model used in predicting future pavement conditions.
The paper also presents a simplified procedure for evaluating the pavement state of distress using the two major pavement
defect groups, namely cracking and deformation. These two defect groups are to be identified and evaluated for pavement
sections using visual inspection and simple linear measurements. The extent of these two major defect groups is measured
using the defected pavement areas (or lengths) and the defect severity is measured based on the average crack width and
average deformation depth. A case study is presented to demonstrate the ‘back-calculation’ of transition probabilities.
In particular, the impacts of the pavement section length on the distress rating and on the estimation of the transition
probabilities have been investigated. The results have indicated that the estimated transition probabilities become highly
unstable as the section length gets larger and the sample size becomes smaller
Stability and removal of dexamethasone sodium phosphate from wastewater using modified clays
No full textStability and removal of dexamethasone sodium phosphate (DSP) from wastewater produced at Al-Quds University Campus
were investigated. Kinetic studies in both pure water and wastewater coming from secondary treatment (activated sludge)
demonstrated that the anti-inflammatory DSP underwent degradation to its hydrolytic derivative, dexamethasone, in both
media. The first-order hydrolysis rate of DSP in activated sludge at 25◦C (3.80 × 10−6 s−1) was about 12-fold larger than in
pure water (3.25 × 10−7 s−1). The overall performance of the wastewater treatment plant (WWTP) installed in the University
Campus was also assessed showing that 90% of spiked DSP was removed together with its newly identified metabolites by
the ultra-filtration (UF) system, which consists of a UF hollow fibre (HF) with a 100-kDa cutoff membrane as the prepolishing
stage for the UF spiral wound with a 20-kDa cutoff membrane. In testing other technologies, the effectiveness of
adsorption and filtration by micelle–clay (MC) preparation for removing DSP was ascertained in comparison with activated
charcoal. Batch adsorption in aqueous suspensions of the MC composite and activated carbon was well described by Langmuir
isotherms showing the best results for MC material. Filtration of DSP water solutions demonstrated a significant advantage
of columns filled in with a mixture of sand and MC complex in comparison with activated carbon/sand filter
Geometry effect and generalization of velocity distribution in asymmetric compound channels.
No full textCivil Engineering
, M.,Gogus
Extension of the primary care research object model (PCROM) as clinical research information model (CRIM) for the ?learning healthcare system?
No full textInformation Technology and Information System
مستوى الوعي الغذائي لدى لاعبي فرق الدرجة الممتازة للكرة الطائرة وكرة السلة في الضفة الغربية
No full textMathematical Sciences
Asfour,Rafi