In 1972, Theodosius Dobzhansky addressed the convention of the National Association of Biology Teachers on the theme “Nothing in biology makes sense except in the light of evolution”. The title of that address (published in The American Biology Teacher, Vol. 35, pp. 125-129) might serve as an epigram of Dobzhansky’s worldview and life, although it is limited in scope, for Dobzhansky believed an...

We describe the origin, development, and status of the Los Alamos antiproton catching trap. Originally designed for the antiproton gravity experiment, it now is clear that this device can be a source of low-energy antiprotons for a wide range of physics, both on site, at CERN, and also off site. Ach ihr Götter| große Götter In dem weiten Himmel droben| Gäbet Ihr uns auf der Erde festen Sinn und...

Before migrating from their home streams to the ocean, young Pacific salmon already know the magnetic parameters of their feeding grounds, allowing them to steer into a favorable habitat. What kind of 'map' representation underlies this remarkable ability?

the main objective of this study was to investigate how months cluster in any thermal regions based on temperature. for this purpose, the mean of daily temperature data have been provided using 620 synoptic and climatology stations. then, mean temperature was converted for any station, based on solar calendar, and maps of mean daily temperature have been interpolated using kriging method. spati...

The study was executed with a specific objective to assess baseline data on libido indices (reaction time, libido index and time lapsed between two ejaculates) and serum testosterone concentration of Cholistani AI bulls (n=06) being reared at SPU, Karaniwala, Bahawalpur, Pakistan. Furthermore, influence was noticed on these parameters of stress free and stressful seasons. Four seasons of 2 mont...

BACKGROUND Using treated wastewater in agriculture irrigation could be a realistic solution for the shortage of fresh water in Iran, however, it is associated with environmental and health threats; therefore, effluent quality assessment is quite necessary before use. The present study aimed to evaluate the physicochemical and microbial quality of Shiraz wastewater treatment plant effluent for b...