Prediction of pulsed or intermittent exposure effects on populations is emerging as an important issue in ecotoxicology. However, the underlying theory of the dose-response models has not been tested rigorously enough to provide a true understanding for predicting the effects of pulsed exposures. Since its introduction, the individual effective dose (IED) theory has remained the dominant explan...

ultraviolet waves, because of their short wavelength, have a high energy and considerable damaging effects on surfaces. protection against ultraviolet radiations is one of the finishing treatments done on surfaces exposed to sunlight. the importance of this issue in relation to human health, due to complications such as skin burns and cancer, is doubled. up to now, different materials such as z...

PURPOSE Rapid development of nanotechnology has recently brought significant attention to the extraordinary biological features of nanomaterials. The objective of the present investigation was to evaluate morphological characteristics of the assembles of gold and platinum nanoparticles (nano-Au and nano-Pt respectively), with Salmonella Enteritidis (Gram-negative) and Listeria monocytogenes (Gr...

Environmental, health, and safety (EHS) concerns are receiving considerable attention in nanoscience and nanotechnology (nano) research and development (R&D). Policymakers and others have urged that research on nano's EHS implications be developed alongside scientific research in the nano domain rather than subsequent to applications. This concurrent perspective suggests the importance of early...

Bu çalışmada, bakır içerikli bir malzeme olan ve sülfat pentahidrat (CuSO4∙5H2O) üretimi sırasında oluşan atık çamurun çeşitli asit çözeltileri kullanılarak değerlendirilme olanaklarının araştırılması amaçlanmıştır. Dünya üretiminin % 15-20’si ikincil hammaddelerin (hurda, curuf, atık, v.b.) işlenmesi ile gerçekleşmektedir. CuSO4∙5H2O üretiminde açığa çıkan yüksek içeriğine sahip olması (ağ. 26...