Abstract The structure effective in regulating the body water balance by the nervous way is hypothalamus that it is located at the base of the 4th ventricle and is connected with cortex cerebri. In this paper, the role of hypothalamus in physiopathology of diarrheal dehydration has been described in brief. [Full Text: PDF]
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Repellency Effect of Essential Oils of Mentha piperita, Rosmarinus officinalis and Coriandrum sativum on Tribolium confusum duval (Coleoptera: Tenebrionidae)
Abstract Confused flour beetle, Tribolium confusum is a major pest of stored products especially cereal flour depreciating the quantity and quality of the food, economically. The application of repellents could be considered as a new control method in storage products. In this study repellent activity of essential oils of Mentha piperita, Rosmarinus officinalis and Coriandrum […]
Computational thermochemistry and a structure for gaseous phase NaCl3
Abstract Thermodynamically stable cubic and orthorhombic NaCl3 as well as NaCl7 have been synthesized [1]. A thermochemical explanation was recently propose [2] for the stability of such unusual compounds [2]. In the present work, molecular modeling (SE-PM3/MMFF) of a dimmeric structure for NaCl3is performed. The calculated cation and anion charges, as well as bond distances […]
Drug prevention among young people
Abstract The costs of drug use to society and individuals include risk of chronic illnesses, such as HIV, hepatitis C and hepatitis B, and risk of accidental injury. Among accidents involving fatalities, drugs have been found in 15 to 20% of riders and drivers. Generally, the effectiveness of drug prevention programmers has tended to be […]
Thermochemistry of Platinum Fluorides: A Computational Study
Abstract In the present work, thermochemical parameters for platinum fluorides: PtF2, PtF4, PtF5PtF6 were calculated by quantum chemical Semi-Emprical (PM6), method and the results compared with (when available) experimental data from literature. Lattice energies are calculated by using Kapustinskii and the generalized Glasser-Jenkins equations. It was concluded that, in gaseous phase, all platinum fluorides are […]
Effect of salicylic acid and drought stress on crop yield
Abstract Crop plants are exposed to several environmental stresses, all affecting plant growth and development, which consequently hampers the productivity of crop plants. Drought is considered the single most devastating environmental stress, which decreases crop productivity more than any other environmental stress. Drought severely affects plant growth and development with substantial reductions in crop growth […]
Ammonia capture by pure and Co(II), Mn(II), Cr(III) and Al(III) modified vanadyl phosphates
Abstract In the present work is reported the synthesis and characterization (by infrared spectroscopy, X-ray diffractometry. X-rayfluorescence and SEM microscopy) of the vanadylphospahtes: VOPO4.2H2O, VOHPO4.0.5H2O, CoVOPO4.2H2O, MnVOPO4.3H2O, CrVOPO4.2H2O and AlVOPO4.2H2O. The prepared matrices had their adsorption capacities towards ammonia tested. The obtained adsorption capacities (mg/g) are as follows: 112.1, 96.6, 125.1, 200.4, 145.1 and 216.8, […]
The effect of auxin and cytokinesis hormones on some characteristics of crop plants
Abstract Introduction Among the most important functions of plant hormones is controlling and coordinating cell division, growth and differentiation. Plant hormones can affect different plant activities including seed dormancy and germination. Plant hormones including abscisic acid (ABA), ethylene, gibberellins, auxin (IAA), cytokinins, and brassinosteroids are biochemical substances controlling many physiological and bio-chemical processes in the […]
Influence of gibberellin and drought stress on biological and grain yield of wheat
Abstract Plant growth regulators have plentiful applications in agriculture such as delaying or accelerating maturity, stimulation, flowering, abscission, controlling weeds and so on. Gibberellins induce flowering in long-day plants which require chilling. Heading was delayed by addition of gibberellic acid (GA3) to the root zone. Water shortage and the increasing competition for water resources between […]
Effect of gibberellin on Plant height and 1000 grain weight of wheat
Abstract Exogenously applied GA3 (0.5 mg L-1) enhanced growth and promoted the accumulation of coumarin content in hairy root cultures. However, some conflicting reports showed that GA3 was ineffective or had slight effects on plant growth. By common literature consensus, the effects of spraying with GA3 might depend on the particular species and surrounding factors. […]