The photoluminescence properties of Pr(3+)-doped GeS(x)-based glasses are studied and compared with those of other sulfide and fluoride glasses. The possibility of highly pump-power-efficient fiber amplifiers based on these GeS(x)-containing glasses in the telecommunications window at 1.3microm is discussed.

BACKGROUND Judgements of volume may influence the rate of consumption of alcohol and, in turn, the amount consumed. The aim of the current study was to examine the impact of the size and shape of wine glasses on perceptions of wine volume. METHODS Online experiment: Participants (n = 360; recruited via Mechanical Turk) were asked to match the volume of wine in two wine glasses, specifically: ...

In most cases authors are permitted to post their version of the article (e.g. in Word or Tex form) to their personal website or institutional repository. Authors requiring further information regarding Elsevier's archiving and manuscript policies are encouraged to visit: a b s t r a c t a r t i c l e i n f o Under typical glass-processing conditions, crystals nucleate, grow, and dissolve in a ...

INTRODUCTION Malnutrition is a serious and relatively common problem among hospitalized patients; moreover, it is known that a good hydration state contributes to health and wellbeing. OBJECTIVE The aim of this study was to determine the relationship between nutritional status, functional dependency, quality of life and liquid-intake habits in malnourished patients after hospital discharge. ...

OBJECTIVE To use focus groups to understand barriers to glasses use among children in rural China. METHODS Separate focus groups were conducted between December 17, 2007, and August 5, 2008, for the following 3 groups at each of 3 schools in rural China: children aged 14 to 18 years with myopia of less than -0.5 diopters in both eyes, those children's parents, and those children's teachers. P...

Quaternary tungstate glasses containing K2O, Na2O and B2O3 have been prepared by melt quench technique and studied by IR and Raman spectroscopy. Raman and infrared spectroscopy have been employed to investigate the (30−x)Na2O–xK2O–10WO3–60B2O 3 glasses in order to obtain information about the competitive role of WO3 and B2O3 in the formation of glass network. IR spectral study reveals the exist...

In this work we study a class of Secant-like iterations for solving nonlinear and non-differentiable equations in Banach spaces. We consider a condition for divided differences which generalizes those usual ones, i.e, Lipschitz continuous and Hölder continuous conditions. A semilocal convergence result is obtained. For that, we use a technique based on a new system of recurrence relations to ob...