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Introduction. Information overload, special competences need in the area of information analysis, demand of business innovation, a struggle in the grant jungle are strong factors that influence the daily work flow for a researcher. Taking these aspects into consideration, we introduce a concept that we have named The State of The Research. Aim. We aim to broaden the researcher’s view in his/her re
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Background: An increased knowledge of predictors that might affect survival in Alzheimer’s disease (AD) patients treated with cholinesterase inhibitors (ChEIs) is important for clinicians and for the health services. Impairment in activities of daily living (ADL), somatic diseases, and psychiatric symptoms may influence mortality in AD. We aimed to study the impact of functional capacity and conco
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We present an experimental study of harmonic generation in molecular gases, using the fundamental (800 nm) and the second harmonic (400 nm) of a 150 fs titanium - sapphire laser at an intensity of ##IMG## [http://ej.iop.org/images/0953-4075/29/14/032/img1.gif] . We compare the conversion efficiency and the maximum energy obtained in different species: rare gases (Ar, Xe), diatomic molecules ( ##IM
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Proton-exchange membrane fuel cells (PEMFCs) have been widely studied in the search for alternative power sources. However, there are still several challenges remaining with this technology linked to high costs and life-time issues.1 One alternative to the use of PEMFCs is to explore the prospects of alkaline membrane fuel cells (AMFCs). This type of fuel cell has more favorable reaction kinetics,
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This paper reports on a systematic procedure for deriving physical bounds in electromagnetic theory. The approach is based on the holomorphic properties of certain Herglotz functions and their asymptotic expansions in the low- and high-frequency regimes. A family of integral identities or summation rules is obtained with values governed by the coefficients in the low- and high-frequency expansions
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Understanding the interaction between electromagnetic waves and matter is vital in applications ranging from classical optics to antenna theory. This paper derives physical limitations on the scattering of electromagnetic vector spherical waves. The assumptions made are that the heterogeneous scatterer is passive, and has constitutive relations which are on convolution form in the time domain and