escherichia coli o157:h7 is an important human pathogen causing haemorrhagic colitis, haemolyticuraemic syndrom and thrombotic thrombocytopenic purpura. in this study, 100 ground beef samples were collected randomly from beef markets in june 2004. for isolation of the bacteria, samples were firstly enriched in modified trypticase soy broth, followed by plating onto sorbitol macconkey agar suppl...

This study examined whether negative attachment cognitions moderate the association between the onset of depressive symptoms in children and their parents using a high-risk sample (parents with a history of major depressive episodes and their children) and a multiwave longitudinal design. During the initial assessment, 140 children (ages 6-14) completed a measure assessing parent-child attachme...

Economic expansion coupled with population growth and associated anthropogenic activities are a threat to water resources globally. This study assessed the dynamics in quality trophic status of one South Africa's hyper-eutrophic reservoirs, Hartbeespoort Dam. Spatio-temporal variability parameters was determined on historical data spanning period forty years (1980-2020), aim determining decadal...

Abstract Broader impacts (BI) policies generate debate on the purpose of science, measuring impact research, and is an important topic for science policy community. However, BI often fail to determine if R&D funding helps marginalized communities. This paper introduces a new framework, Inclusion-Immediacy Criterion, that assesses who benefits from research as divided into three groups: (1) ...

Hoje, um dos principais problemas que enfrentamos é a poluição recursos hídricos, o provoca perda da qualidade água. O monitoramento de sua fundamental para obtenção informações físicas, químicas, biológicas e ecológicas hídricos por meio amostragem. A água, vital manutenção vida, recurso em constante crise, principalmente pela escassez causada corpos pelo aumento do consumo. Neste estudo caso,...

Aims of the Study: The physical, chemical and biological characteristics of Karaj River (near the city of Tehran, Iran), has been studied to evaluate the suitability of its water for domestic uses. Materials & Methods: Samples of water were collected from various localities before, in and after Karaj Dam Lake and were analyzed based on needs for Water Q...