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Enhanced Heat Transfer and Energy Conservation: A review of the selected papers from ISHTEC2012

Ministry, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, China Li-Zhi Zhang is a Professor at South China University of Technology (Guangzhou, China ... the research center for Built Environment Technologies. Li-Zhi Zhang has worked with energy recovery, heat and mass transfer, and advanced humidity control technologies since 1992. His primary interest

Sorption, permeation and selective transport of moisture/VOCs through a CA membrane for total heat recovery

This article studies in detail the permeation properties of highly permeable and highly selective polymer membrane for water vapor/volatile organic compound (VOC). A dense cellulose acetate (CA) membrane is prepared by the dry method. The sorption and permeation properties of water vapor and VOCs (acetic acid, formaldehyde, acetaldehyde, toluene and ethane) are experimentally...

The Influence of Demography and Weak Selection on the McDonald–Kreitman Test: An Empirical Study in Drosophila

The McDonald–Kreitman (MK) test, which compares the ratio of polymorphism to divergence at nonsynonymous and synonymous sites, is frequently used to detect adaptive evolution in protein-coding sequences. Because the two classes of sites share a common evolutionary history, the MK test is thought to be robust to most demographic factors. However, weak selection on nonsynonymous...

Positive Correlation Between Evolutionary Rate and Recombination Rate in Drosophila Genes with Male-Biased Expression

Previous studies have shown that genes that are expressed predominantly or exclusively in males tend to evolve rapidly in comparison to other genes. In most cases, however, it is unknown whether this rapid evolution is the result of increased positive (or sexual) selection on male-expressed traits or if it is due to a relaxation of selective constraints. To distinguish between...

Bell-Shaped D-Serine Actions on Hippocampal Long-Term Depression and Spatial Memory Retrieval

D-Serine, the endogenous coagonist of N-methyl-D-aspartate receptors (NMDARs), is considered to be an important gliotransmitter, and is essential for the induction of long-term potentiation. However, less is known about the role of D-serine in another form of synaptic plasticity, long-term depression (LTD). In this study, we found that exogenous D-serine regulated LTD in the...

Molecular Evolution of Sex-Biased Genes in Drosophila

Studies of morphology, interspecific hybridization, protein/DNA sequences, and levels of gene expression have suggested that sex-related characters (particularly those involved in male reproduction) evolve rapidly relative to non–sex-related characters. Here we report a general comparison of evolutionary rates of sex-biased genes using data from cDNA microarray experiments and...

Long range cooperative interactions regulate the initiation of replication in the Tetrahymena thermophlla rDNA minichromosome

Kim P. Reischmann 0 Zhi Zhang 0 Geoffrey M. Kapler 0 0 Department of Medical Biochemistry and Genetics, Texas A&M Health Science Center, College Station , TX 77843-1114, USA The Tetrahymena

Restoration of the balanced α/β-globin gene expression in β654-thalassemia mice using combined RNAi and antisense RNA approach

The β-thalassemia is associated with abnormality in β-globin gene, leading to imbalanced synthesis of α-/β-globin chains. Consequently, the excessive free α-globin chains precipitate to the erythrocyte membrane, resulting in hemolytic anemia. We have explored post-transcriptional strategies aiming at α-globin reduction and β-globin enrichment on β654 (Hbbth-4/Hbb+) mouse...

Chlamydial Genovar Distribution after Communitywide Antibiotic Treatment

Major outer membrane protein sequences, determined from Chlamydia-positive eye swab samples collected in 2 Egyptian villages, were used to analyze the epidemiology of trachoma in an endemic setting. Samples were collected during the 1999 Azithromycin in Control of Trachoma trial, in which residents of villages were mass treated with either oral azithromycin or topical...

Sulbactam/Cefoperazone Versus Cefotaxime for the Treatment of Moderate-to-Severe Bacterial Infections: Results of a Randomized, Controlled Clinical Trial

We conducted a randomized, open-label, controlled, multicenter study to compare sulbactam/cefoperazone with cefotaxime in terms of efficacy and safety for the treatment of hospitalized patients with moderate-to-severe bacterial infections. More than two-thirds of the pathogens recovered from these patients produced β-lactamase. Two hundred-seven (88.1%) of the 235 patients...