The establishment and maintenance of plant species in the Chaco, one of the widest continuous areas of forests in the South American with sharp climatic variations, are possibly related to biological features favoring plants with particular defenses. This study assesses the physical and chemical defenses mechanisms against herbivores of vegetative and reproductive organs. Its analyses of 12 spe...

Assessment of Chemical components in ground water used for drinking and irrigation purposes Sabratha region were carried out. Samples collected from 30 wells supplying to the inhabitants region. All samples analyzed 20 parameters (PH), TDS, Conductivity, Salinity %,SO4 --,Cl-,T.H (CaCO3),Ca. as CaCO3,Mg. CaCO3,Alkalinity, HCO3-,NO2-,NO-3,NH4+,Ca ++,Mg++,PO4++,T, Na+, K+,Fe recording (7.3145, 10...

The macroscopic and microscopic characters, physical constant values, extractive values, ash values and the behaviour of powder drug on treatment with different chemical regents, microchemical and histochemical analyses were conducted to characterize some pharmacognostical parameters of Curcuma amada linn. (Zingiberaceae).

The time dependent progress of a chemical reaction over a flat horizontal plate is here considered. The problem is solved through the group similarity transformation method which reduces the number of independent by one and leads to a set of nonlinear ordinary differential equation. The problem shows a singularity at the chemical reaction order n=1 and is analytically solved through the perturb...

In 1903, Arthur Cushny, Professor of Materia Medica and Therapeutics at the University of Michigan, published an article in the Journal of the American Medical Association entitled “The Pharmacologic Action of Drugs: Is It Determined by Chemical Structure or by Physical Characters(1)?” To a chemist today, this question might seem odd. The physical properties of a drug and its chemical structure...

In order to study the effect of foliar applications of micronutrients on yield, extraction oil production and chemical composition of pot marigold (Calendula officinalis), two experiments were conducted in the randomized complete block design with three replications in Shahrekord, Iran during two growing seasons 2014 and 2015. The objectives of this study were to determine the effects of foliar...

The Macroscopic character of the leaves ash values, extractive values, behaviors on treatment with different chemical reagents, fluorescence characters under ultra violet light after treatment with different chemical reagents of the powdered leaves of ficus racemosa Linn (fam. Moraceae) were studied to fix some pharmacognostical parameters. Preliminary phytochemical studies on different extract...