The current knowledge of the geographic distribution of short-winged flower beetles and sap beetles (Kateretidae and Nitidulidae, respectively) from Iran is summarized. In total, 84 species of Nitidulidae (in 22 genera and 5 subfamilies: Epuraeinae, Carpophilinae, Cryptarchinae, Nitidulinae, Meligethinae) and 6 species of Kateretidae (in 4 genera: Brachyleptus Motschulsky, Brachypterolus Grouve...

Interest in bleached photographic gratins and holograms arose as early as 1965.” Several theoretical investigations of photographically generated gratings showed that greatly improved efficiencies could be obtained by elimination of the absorption and reflection inherent in a silver imngc.a*Y This information stimu lated interest in improving diffraction efficiencies by bleaching processes, wi...

Concerns about declining populations of terrestrial orchids make it important to identify the environmental factors crucial to seedling recruitment. This study shows that seedlings of Tipularia discolor (cranefly orchid) primarily occur on decomposing wood. Extensive searches of decomposing logs and stumps in mature and successional forests revealed seedlings at 24 sites, of which 15 could be i...

Twenty growing Small East African goats were used to determine the effects of feeding sun-dried leaves of the browse forages Berchemia discolor and Zizyphus mucronata as supplements to low-quality basal diet, Rhodes grass (Chloris gayana) hay, on voluntary feed intake (VFI), digestibility and growth performance. The grass hay and maize bran were used as a control. The dried leaves were then inc...

The auditory cortex is an essential center for sound localization. In echolocating bats, combination sensitive neurons tuned to specific delays between call emission and echo perception represent target distance. In many bats, these neurons are organized as a chronotopically organized map of echo delay. However, it is still unclear to what extend these neurons can process directional informatio...

In this study, we analyzed distribution of species the genus Gymnosporangium in mountain regions Uzbekistan, including Western Tien Shan and Pamir-Alay. Four (G. confusum, G. sabinae, fusisporum, turkestanicum) are reported for Uzbekistan. The telial hosts these rust fungi Juniperus, while aecial Uzbekistan representatives genera Cotoneaster, Crataegus, Sorbus, Pyrus (all Rosaceae). It has been...

extracts of cotoneaster medicus, glycyrrhiza glabra, as endemic plants of iran, along with mixture of them were investigated for their antioxidant activities using 2, 2- diphenyl-1-picrylhidrazyl (dpph) reagent. uv-vis spectrophotometry method was used to evaluate the ability of cotoneaster and glycyrrhiza glabra antioxidant to scavenge dpph radical. the kinetic parameters such as rate constant...

Introducción: la política mundial y nacional considera clave de conservación especies, para las sinergias los ecosistemas naturales, con importancia mantener el equilibrio frente a actividades del hombre como recursos sostenibles sustentable ecosistema. Objetivo: evaluar densidad manejo forestal especies piptocoma discolor (Pigüe) otras en provincia Pastaza – Ecuador. Metodología: estudio se ll...