various human pressures are affecting the aquatic biocoenosis in running waters of iran - similar to many other areas of the world. overall 190 sites, 88 at salmonid (44 reference/impacted respectively) and 102 at cyprinid (50 reference/52 impacted) streams of the southern caspian sea basin were investigated in terms of human pressures present and the related impact on fish assemblages. in tota...

The interaction of UICC crocidolite asbestos with biological membranes in vivo was studied in rats after a single intratracheal dose of a suspension of 20 mg of fibres per rat. Development of lung fibrosis (increased level of hydroxyproline, a collagen index together with corresponding pathomorphological alteration) confirmed the penetration of crocidolite fibres into the lungs in the course of...

A microdiffusion technique has been used to separate and concentrate the nanomole amounts of cyanide in whole blood, and to permit its simplified colorimetric estimation (1). With this technique cyanide was measured in whole blood from normal smokers, normal nonsmokers, and patients suffering from tobacco amblyopia. Cyanide was also measured in whole blood from vitamin B12-deficient and normall...

This paper attempts to explain the consequences of the relational calculus not allowing relations to be domains of relations, and to suggest a solution for the issue. On the example of SQL we describe the consequent problem of the multitude of different representations for relations; analyze in detail the disadvantages of the notions “TABLE” and “FOREIGN KEY”; and propose a complex solution whi...

The intense color of noble metal nanoparticles has inspired artists and fascinated scientists for hundreds of years. These rich hues are due to the interaction of light with the nanostructure’s localized surface plasmon (LSPR). Here, we describe three optical sensing modalities that are dependant on the effects of the LSPR. Specifically, we will demonstrate the use of LSPR supporting particles ...

The myelolactoferrin index (MLF) is significantly lowered in patients with bacterial infections and with malignant diseases. In both cases it can be assumed that the alteration of the granulopoietic storage pool is followed by a decrease in lactoferrin. Therefore, it seems advisable to study (a) to what extent the immunocytochemical quantitative evaluation of lactoferrin content of mature neutr...

Pressure wave reflection plays a pivotal role in the augmentation of systolic blood pressure. In the present study, the association between reflection of pressure wave and structural and functional alteration, including blood flow, in the common carotid artery was investigated in 70 hospitalized essential hypertensive patients. The reflection of pressure was estimated by the "augmentation index...

AIMS To evaluate alteration of plasma malondialdehyde (MDA) and nitric oxide (NO) levels in patients with exudative age related macular degeneration (ARMD). METHODS Plasma nitrite plus nitrate concentrations as an index of plasma NO levels and plasma MDA level as a marker of lipid peroxidation were measured in patients with exudative ARMD and age and sex matched healthy subjects. RESULTS Si...