During the autumn, the third-instar larvae of the gall fly Eurosta solidaginis acquire freeze tolerance and their crystallization temperatures increase into the -8 to -10 °C range. Despite conflicting reports, efficient endogenous ice nucleators have not been identified in this freeze-tolerant insect. We found large crystalloid spheres within the Malpighian tubules of overwintering larvae. ...

In this study, the antioxidant activity and phytochemical analysis of extracts from bark Fagara zanthoxyloides seeds Mucuna pruriens were performed. Phytochemical quantified total polyphenols, flavonoids, tannins anthocyanins was evaluated by DPPH method. The high levels polyphenols are obtained aqueous extract F. zanthoxyloïdes (488.6 ± 1.1 GAE/g) methanolic (142.9±12.9 GAE/...

An estimate of tropospheric ozone concentrations was obtained from the difference in the Total Ozone Mapping Spectrometer (TOMS) data between the high Andes and the Pacific Ocean. From 1979 to 1992 the tropospheric ozone concentration apparently increased by 1.48 ± 0.40 percent per year or 0.21 ± 0.06 Dobson unit per year over South America and the surrounding oceans. An increase ...

The role of cholesterol in the thermal adaptation of biological membranes is explored. Physical and chemical responses of membranes to acclimation temperature were evaluated using plasma membrane domains (basolateral and brush border) prepared from intestinal epithelia of 5- and 20 °C-acclimated rainbow trout (Oncorhynchus mykiss). Basolateral membranes (BLMs) exhibit perfect homeoviscous e...

Epithelial brush-border membrane vesicles (BBMVs) of lobster (Homarus americanus) hepatopancreas were formed by a Mg2+ precipitation technique. In these BBMVs, [14C]glycylsarcosine ([14C]Gly-Sar) uptake was stimulated by a transmembrane proton gradient. transmembrane K+ diffusion potential (inside negative) stimulated [14C]Gly-Sar uptake above that observed with short-circuited vesicles, while ...

The purpose of this work is to investigate and evaluate the level contamination naturally occurring radionuclides in environmental soil samples collected at a place from West Kirby using gamma-ray spectroscopy. Broad Energy Germanium (BEGe2825) detector has ability detect gamma-rays range 3 keV-3MeV. This offers very good resolution, low noise performance almost ideal Gaussian shape our analysi...

OBJECTIVE To assess the reliability of non-islanded distally based sural artery flap, in terms of number of flap failure (partial and major flap necrosis), number of surgeries related to the problem for which flap surgery was performed, hospital stay and return to work, for coverage of soft tissue defects of the distal one-third of leg, ankle and heel. STUDY DESIGN Cohort study. PLACE AND D...

Nanoparticles, because of their diversified applications in the field modern medicine, have gained a lot importance thrust area. In present investigation, synthesis and characterization Silver nanoparticles (AgNPs) antimicrobial effect on certain pathogenic bacteria were studied. AgNPs prepared by green process using stem extract Euphorbia nivulia, from 1 mM AgNO3 solution. The color change was...

PURPOSE Our aim was to evaluate the effect of neat semen vitrification on human sperm vital parameters and DNA integrity in men with normal and abnormal sperm parameters. MATERIALS AND METHODS Semen samples were 17 normozoospermic samples and 17 specimens with abnormal sperm parameters. Semen analysis was performed according to World Health Organization (WHO) criteria. Then, the smear was pro...

PURPOSE This study was conducted to evaluate lower urinary tract symptoms (LUTS) change in patients with localized prostate cancer after radical retropubic prostatectomy (RRP) and examine the efficacy of anticholinergic drugs to treat patients suffering from storage symptoms. MATERIALS AND METHODS Among 50 patients who underwent RRP for prostate cancer, 40 who did not undergo additional treat...