in different regions, precipitation takes place with different persistencies and every persistency supplies a share of rainfall days and precipitation. therefore, the importance of rainfall persistence could be evaluated in all places. iran is located in mid-latitude of an arid region, in which the mean rainfall is 250 mm and it has dramatic tempo-spatial changes. rainfalls with short persisten...

after heavy rainfalls in late apr. of 2010 in tehran, an epizootic occurred amongst hoverflies (eupeodes corollae fabricius) population in green spaces of iranian research institute of plant protection, caused by an entomopathogenic fungus. infected flies fixed to the upper parts of whitetop (lepidium draba l.) and small tumbleweed mustard (sisymbrium loeslii l.) plants with their proboscis and...

Solid waste generation is directly proportional to the population; it also increasing with global population. Pakistan generates 0.283 0.612 kg/capita/day solid and per year growth rate 2.4%. In developing countries issue of poor management prevalent. Pakistan, 55000 tons being generated day in urban areas. Only 60% collected disposed. The remainder left uncollected which ultimately causes prob...

Genomic instability is a hallmark of human cancer cells. To prevent genomic instability, chromosomal DNA is faithfully duplicated in every cell division cycle, and eukaryotic cells have complex regulatory mechanisms to achieve this goal. Here, we show that untimely activation of replication origins during the G1 phase is genotoxic and induces genomic instability in the budding yeast Saccharomyc...

introduction precipitation, an intrinsic part of nature, is essential not only for the survival of human but also for that of plants and animals. yet, this valuable natural phenomenon can also jeopardise human life, flora and fauna. torrential rains are sudden events that wreak havoc in iran and other parts of the world. in recent years, due to man's abuse of nature and disruption of environmen...

Deep-seated slope failures are common features in the mountains of the Raca Unit, Magura Nappe of the Flysch Belt of Western Carpathians. Since they represent very complicated system, understanding of their evolution and triggers still remains unclear. We tried to provide a back-analysis of their development by using a finite difference code (FDM) of continua (Flac 4.0). We confirmed that such ...