A new echo phenomenon in proteins, a generalization of so-called temperature quench echoes, is introduced and shown to reveal, through molecular dynamics simulations, periodic motions ~normal modes! in proteins with phase coherence times of about one picosecond. The echoes are induced through reassignments of Cartesian velocities to protein atoms at times t50 and t5t ~0,t<1 ps! and appear as tw...

The lung clearance of technetium-99m diethylenetriamine penta-acetic acid (99mTc-DTPA) is a measure of respiratory epithelial permeability. Many factors may contribute to the wide range of normal values, including the method of correction for background activity. The aim of this study was to compare three methods of analysis, including their repeatability. 99mTc-DTPA lung clearance imaging was ...

Purpose: A comparative study was carried out between surface solid dispersion (SSD) and solid dispersion (SD) of meloxicam (MLX) to assess the solubility and dissolution enhancement approach and thereafter develop as patient friendly orodispersible tablet. Methods: Crospovidone (CPV), a hydrophilic carrier was selected for SSD preparation on the basis of 89% in- vitro MLX adsorption, 19% hydrat...

Appropriate fertigation management plays an important role in increasing crop quality and economizing water. The objective of the study was to determine effects two treatments, normal (T100) 50% sustained deficit (T50), on physico-chemical legumes. determinations were performed edible parts peas, French beans mangetout. trials conducted a protected cultivation certified organic farm. response l...

SCGC (self-compacting geopolymer concrete) contains a new hybrid of self-compacting concrete and concrete, under the development in recent years, regarded to be an environmentally beneficial building material, as it does not use Portland cement traditional binder, its flowability eliminates need for vibrator application. Local pozzolanic materials containing silica (SiO2) alumina were utilized ...

The secretion of the 2 main layers (endochorion and exochorion) of the eggshell of the desert locust Schistocerca gregaria was investigated using light and electron microscope autoradiography. Follicles undergoing endochorion secretion were labelled using a 3 min 'pulse' of [3H]leucine in vitro followed by a 0-115 min non-radioactive 'chase'. Immediately after the pulse the silver grains were d...

A 32 factorial design was employed to produce glipizide lipospheres by the emulsification phase separation technique using paraffin wax and stearic acid as retardants. The effect of critical formulation variables, namely levels of paraffin wax (X1) and proportion of stearic acid in the wax (X2) on geometric mean diameter (dg), percent encapsulation efficiency (% EE), release at the end of 12 h ...

Two strains (15.1 and 15.8) of the thermophilic fungus Scytalidium thermophilum produced high levels of intracellular glucoamylases, with potential for industrial applications. The isoform I of the glucoamylase produced by 15.1 strain was sequentially submitted to DEAE-Cellulose and CM-Cellulose chromatography, and purified 141-fold, with 5.45% recovery. The glucoamylase of strain 15.8 was puri...