Chemoenzymatic approaches to obtain chiral-centered selenium compounds

Person-centered approaches 1 Person-centered Approaches to Personality

Selenium Compounds

Selenium is a naturally occurring substance that is toxic at high concentrations but is also a nutritionally essential element. Hydrogen selenide is the most acutely toxic selenium compound. Acute (short-term) exposure to elemental selenium, hydrogen selenide, and selenium dioxide by inhalation results primarily in respiratory effects, such as irritation of the mucous membranes, pulmonary edema...

Human - Centered Vs . User - Centered Approaches to Information System Design

Despite continuing debates about the "user" emphasis in HCI, new design approaches, such as interaction design, continue to focus on humans as technology users, constraining the human-centeredness of design outcomes. This paper argues that the difference between "user" focus and a human-centered focus lies in the way in which technology is designed. The emphasis on problem closure that is embed...

Alternative approaches to obtain t-norms and t-conorms on bounded lattices

Triangular norms in the study of probabilistic metric spaces as a special kind of associative functions defined on the unit interval. These functions have found applications in many areas since then. In this study, we present new methods for constructing triangular norms and triangular conorms on an arbitrary bounded lattice under some constraints. Also, we give some illustrative examples for t...

Selenium compounds for fish health: An update

Oxidative stress has become an important subject for terrestrial and aquatic toxicology. The trace element selenium has been demonstrated in chemo-prevention and drug-resistance through reduction of oxidative stress. Selenium compounds could prevent damage to the unsaturated fatty acid of subcellular membranes by lipid peroxidation induced by free radicals in fish.