D20 lengthens the free running period of the circadian petal movement of isolated Kalanchoe flowers by 1.6% per 10% heavy water. This corresponds to findings reported in the literature for other organisms. 100% D20 administered in the form of 4 hour pulses at various phases of the circadian cycle lead to phase responses zero to maximally 1.5 hour delays. No advancing phase shifts occur. Possibl...

Malathion (S-(1, 2-dicarboethoxyethyl) O, O-dimethyl phosphorodithioate) is one of the organophosphate pesticides comprehensively used in agriculture fields throughout the world. In spite of widely used, little information are available about DNA damage in aquatic organisms. Therefore, the present study carried out to investigation of DNA damage induced by malathion in Cyprinus carpio (Pisces: ...

The interaction of electromagnetic fields (EMF) with living organisms presents an increasing source of interest nowadays. There are reports on the influence of EMFs on memory. In this study, the effect of a 50 Hz, 50G EMF was investigated on passive avoidance learning in male rats. For this purpose, male Wistar rats (n = 50, 6-8 weeks, 250-300 g) were randomly divided into five groups. Control ...

The interaction of electromagnetic fields (EMF) with living organisms presents an increasing source of interest nowadays. There are reports on the influence of EMFs on memory. In this study, the effect of a 50 Hz, 50G EMF was investigated on passive avoidance learning in male rats. For this purpose, male Wistar rats (n = 50, 6-8 weeks, 250-300 g) were randomly divided into five groups. Control ...

Not all daily rhythms are circadian rhythms. The earth’s rotation exposes organisms to rhythmic changes in the environment, such as light/dark cycles. These environmental changes impose rhythms in organisms; however, many of these rhythms may not persist when in constant conditions. The 24-hour rhythms that do persist in these constant conditions are circadian rhythms. For a process to be defin...

Effective concentrations of antibiotic in the fluid bathing implanted hip prostheses are essential to prevent infection by micro-organisms. Twenty patients undergoing total hip replacement were given one gram of Cephradine intramuscularly one hour before operation and one other received a single bolus of Cephradine intravenously before operation and one other received a single bolus of Cephradi...

OBJECTIVE To find shortest and reliable time period of urine collection for determination of proteinuria. MATERIALS AND METHODS It is a prospective study carried out on 125 pregnant women with preeclampsia after 20 weeks of gestation having urine albumin >1 using dipstick test. Urine was collected in five different time intervals in colors labeled containers with the assistance of nursing sta...

Corneal tissue absorption and intraocular penetration of fusidic acid were assessed in the rabbit after topical or subconjunctival application. Corneal tissue levels of fusidic acid one hour after the last topical application of the drug were well above the minimum inhibitory concentrations (MICs) for most Gram-positive and many Gram-negative organisms. Adequate levels were achieved in the aque...

During the course of an experimental study of bacteriuria, specimens of urine thought to contain Bacillus prodigiosus which had been injected into the circulation became contaminated with Bacillus subtilis. In an effort to rid them of this contamination, the effect on the two organisms of a number of common dyes was studied and a striking selective power possessed by gentian violet was brought ...