The difficulties of current classifications of depression can not be considered independent of the general complications of psy chiatric classification. A tedious period of heated debate between the proponent of unitary vs pluralist views, and between the advocates of the categorical vs dimensional views didn't prove fruitful. Current classifications share two main characteristics I.e, they are...

The theory of gerotranscendence, a developmental theory of positive aging was proposed by Lars Tornstam in 1989. It was based on the empirical researches done by him in late 1970s and early 1980s [4] and work of other theorists [5,6]. Tornstam began to explore aging with a phenomenological qualitative approach. 50 participants aged between 52 to 97 years were interviewed after a lecture by Lars...

Biofuels and -chemicals can be produced from carbohydrates in lignocellulosic biomass. For an efficient total enzymatic hydrolysis of the plant cell wall polysaccharides, a pretreatment step is required. Ionic liquids (ILs) have recently gained considerable interest as solvents for cellulose and lignocellulosic biomass and pretreatment of lignocellulose with ILs is currently an extensively stud...