topography and climate are two important soil forming factors affecting genesis and clay mineralogy of soils. calcareous and gypsiferous soils are widely spread in arid and semiarid parts of iran and palygorskite is a dominant clay mineral in these soils. the objectives of the study were to: (1) determine soil genesis and classification along the climotoposequence and (2) investigate clay miner...

echinoids fauna are common and distributed in the lower miocene deposits of the bagher abad area, northeast isfahan, central iran.there are six echinoid taxa belonging to the echinoidea class that can be described as: clypeaster intermedius, prinocidaris sp. andspines related to: eucidaris zaemays, stylocidaris polyacantha, spatangoid sp. and prinocidaris sp. bivalves, foraminifers,bryozoans, b...

the aim of this investigation was to prepare, characterize and optimize the aceclofenac proniosomes using central composite design and carry out stability studies. three independent variables selected were molar ratio of drug to lipid (x1), surfactant loading (x2) and volume of hydration (x3). based on central composite design, 16 batches of proniosomes were prepared by slurry method and evalua...

this article  studyies political identity of dagestani people in the north caucasus. at the first, i have defined a true theory of political identity, which is compatible with dagestanis. this theory defines political identity in two aspects: grounded aspect, which is geography and history, and the social-environmental aspect, which includes culture (especially religion, costumes and ethnicity)...

nitrate contamination is one of the main risks for groundwater in agricultural areas. theevaluation of the effect of agricultural practices on groundwater nitrate concentration, especially in highlysensitive areas, is crucial for a correct land planning, and a good agronomic intervention scheduling. aim of this paper is to map the probability to exceed nitrate regulatory threshold applying a no...

amitraz is a triazapentadiene, an α2 adrenergic agonist and a member of the amidine chemical family. a limited number of human intoxication cases have been published in the literature. lack of a clear and specific protocol for the therapy of amitraz intoxication may make its successfully managed case reports useful and valuable for other clinical practitioners in poisoning departments. the case...

data suggest that the multifocal electroretinography (mferg) may have a role in the assessment of patients with central retinal vein occlusion (crvo). to explore the mferg responses in patients with crvo. mferg responses were recorded at 61 discrete retinal locations from both eyes of 25 patients diagnosed with retinal vein occlusions within 3 weeks of onset. the latencies and amplitudes of ave...

fructose consumption has increased dramatically in the last 40 years, and its role in the pathogenesis of the metabolic syndrome has been implicated by many studies. it is most often encountered in the diet as sucrose (glucose and fructose) or high-fructose corn syrup (55% fructose). at high levels, dietary exposure to fructose triggers a series of metabolic changes originating in the liver, le...

diagnosis of cardiac tamponade has been mainly based on clinical features and echocardiography. however, ct may be an initial tool for the evaluation of cardiac tamponade because cutting edge ct is increasingly being installed in the emergency room, and presentation of cardiac tamponade can be nonspecific. importantly, ct has better spatial resolution compared with echocardiography. thus, ident...