The African sharptooth catfish (Clarias gariepinus) is indigenous to South Africa where it is commonly found in calm waters such as lakes, streams, rivers, swamps and floodplains. The males of this gonochoristic species can be readily distinguished from females via a distinct elongated urogenital papilla with a pointed tip, located just behind the anus. This structure is an androgen controlled ...

BACKGROUND The motivation for the BioHub project is to create an Integrated Knowledge Management System (IKMS) that will enable chemists to source ingredients from bio-renewables, rather than from non-sustainable sources such as fossil oil and its derivatives. METHOD The BioHubKB is the data repository of the IKMS; it employs Semantic Web technologies, especially OWL, to host data about chemi...

Accepted : May, 2010 Use of chemicals in crop production is unavoidable. However, their excessive use is creating health problem due to pollution of air, water and soil, i.e., environment and food product, now under IPM strategies biopesticides and botanical pesticides have emerged as a eco-friendly approach to protect environment for sustainable agriculture and life on the plant (Tiwari, 1995)...

The use of medicinal plant resources in the biosynthesis metallic nanoparticles (MNPs) is remarkable nanobiotechnology for its unique physicochemical and biological properties such as morphological diversity, large surface area by volume proportion, conductivity, stability, dispersity, toxicity to microbes, or cancerous cells. Active phytochemicals bioactive compounds various plants flavonoids,...

White Biotechnology is an emerging field within modern biotechnology that serves industry. It uses living cells like moulds, yeasts or bacteria, as well as enzymes to produce goods and services. Living cells can be used as they are or improved to work as „cell factories” to produce enzymes for industry. White biotechnology comprises a large number of scientific disciplines and is based on novel...

background: workers in wastewater treatment plants are exposed to a wide range of chemicals as well as biological contaminants. objective: to ascertain whether exposure to bio-aerosols under the normal working conditions in wastewater treatment plants is associated with any significant changes in the prevalence of respiratory symptoms and lung function capacities. methods: 198 employees of wast...

BACKGROUND Adverse outcome pathways (AOPs) link adverse effects in individuals or populations to a molecular initiating event (MIE) that can be quantified using in vitro methods. Practical application of AOPs in chemical-specific risk assessment requires incorporation of knowledge on exposure, along with absorption, distribution, metabolism, and excretion (ADME) properties of chemicals. OBJEC...

Introduction: During 2000, 293 billion pounds of about 8000 different organic compounds were manufactured in the United States (1). Many millions of pounds of synthetic organic compounds are deliberately introduced into the environment for weed and pest control, and many millions of pounds of other chemicals are introduced into the environment through their proper uses. However, an increase in ...