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Now showing items 61-70 of 168
Shortwall stoping versus sub-level longwall caving-retreat in Eli coal fieds
(SOUTH AFRICAN INST MINING METALLURGY, 2006)
This study deals with the presentation of the mechanized longwall mining project introduced some years ago to increase productivity and output of Aegean Lignite Establishment (ELI) owned by Turkish Coal Enterprises (TKI) ...
The economical and international dimensions of the environmental problems, environmental problems in the Black Sea region and the role of the voluntary organizations
(PERGAMON-ELSEVIER SCIENCE LTD, 2006)
Differently than in the past, today environmental problems have local, national and international concern. The environmental problems in the Black Sea region are a good example for this phenomenon. These problems have ...
Screening of antioxidative properties of the methanolic extracts of Pelargonium endlicherianum Fenzl., Verbascum wiedemannianum Fisch & Mey., Sideritis libanotica Labill. subsp linearis (Bentham) Borm., Centaurea mucronifera DC. and Hieracium cappadocicum Freyn from Turkish flora
(ELSEVIER SCI LTD, 2006)
Five extracts from five plants, of which four are endemic to Turkish flora, were screened for their possible in vitro antioxidant activities by two complementary test systems, namely DPPH free radical-scavenging and ...
Application of the Box-Wilson experimental design method for the spherical oil agglomeration of coal
(ELSEVIER SCI LTD, 2006)
In this study, the Box-Wilson statistical experimental design method was employed to evaluate the effects of important variables such as bridging liquid (oil) concentration, salt (CaCl(2)(.)2H(2)O) concentration and stirring ...
Crimean-congo heamorrhagic fever and EEG: Two cases
(UNIVERSITATSVERLAG ULM GMBH, 2006)
Crimean-Congo haemorrhagic fever (CCHF) is an infectious and potentially lethal syndrome caused by various types of viruses. Infected ticks transmit the virus to humans via their bite. The symptoms include fever, jaundice, ...
A case-control study on the effect of exposure to different substances on the development of COPD
(ELSEVIER SCIENCE INC, 2006)
PURPOSE: The purpose of this study was to examine the effect of exposure to different substances on the development of chronic obstructive pulmonary disease (COPD). METHODS: The case group consisted of 74 housewives. These ...
In vivo evaluation of the genotoxic effects of clomiphene citrate on rat reticulocytes: A micronucleus genotoxicity
(KARGER, 2006)
Objective: To determine the genotoxic effects of clomiphene citrate (CC) on rat reticulocytes in vivo. Methods: In this prospective, randomized, controlled study, rats were each assigned randomly to the CC 50, CC 100, CC ...
Effect of hypothyroidism on the NO/cGMP pathway of corpus cavernosum in rabbits
(BLACKWELL PUBLISHING, 2006)
Introduction. The incidence of hormonal dysfunction as a cause of impotence remains controversial. However, several recent studies have reported evidence of hormonal abnormalities in 25-35% of impotent men. Hypothyroidism ...
Environmental geological assessment of a solid waste disposal site: a case study in Sivas, Turkey
(SPRINGER, 2006)
The selection of the disposal site is probably the most important step in the development of solid waste management. In site selection, geology plays a determining role. This study evaluates the characteristics of the ...