نتایج جستجو برای: transmission factor

تعداد نتایج: 1076688  

Journal: :Health transition review : the cultural, social, and behavioural determinants of health 1997
J Twa-Twa I Nakanaabi D Sekimpi

Divorced or separated persons are more likely to be infected with HIV than those in marital unions: sexual partner instability appears to have significant implications in STD/HIV transmission. While this appears empirically true, most current STD/HIV preventive strategies do not seem to address partner instability as an important underlying factor in STD/HIV transmission and control. This paper...

Journal: :Optics express 2017
Jan-Willem Goossens Mansoor I. Yousefi Yves Jaouën Hartmut Hafermann

Polarization-division multiplexed (PDM) transmission based on the nonlinear Fourier transform (NFT) is proposed for optical fiber communication. The NFT algorithms are generalized from the scalar nonlinear Schrödinger equation for one polarization to the Manakov system for two polarizations. The transmission performance of the PDM nonlinear frequency-division multiplexing (NFDM) and PDM orthogo...

2013
M. Nassereddine J. Rizk G. Nasserddine

High Voltage (HV) transmission lines are widely spread around residential places. They take all forms of shapes: concrete, steel, and timber poles. Earth grid always form part of the HV transmission structure, whereat soil resistivity value is one of the main inputs when it comes to determining the earth grid requirements. In this paper, the soil structure and its implication on the electrode r...

2012
Manjit Singh Bhamrah Kuldeepak Singh

Optical communications link have evolved from lengthy fibers to wireless system such as intersatellite transmission system, for which transmission capacity and distance of optical signal are always an important consideration factor to improve the performance of the optical wireless transmission system. This paper investigates the effect of bit rates on link distance. We have taken bit rates fro...

Journal: :Canada communicable disease report = Releve des maladies transmissibles au Canada 1997

Transmission of hepatitis C virus (HCV) and other bloodborne viruses between household members who are not sex partners presumably results from inapparent percutaneous or permucosal exposures, such as sharing articles that may be contaminated with microscopic quantities of blood. The risk for nonsexual household transmission is extremely low, and no cases of such transmission have been document...

Journal: :Journal of neurophysiology 1998
M Frerking R C Malenka R A Nicoll

Brain-derived neurotrophic factor (BDNF) modulates inhibitory, but not excitatory, transmission in the CA1 region of the hippocampus. J. Neurophysiol. 80: 3383-3386, 1998. Brain-derived neurotrophic factor (BDNF) has been reported to have rapid effects on synaptic transmission in the hippocampus. We report here that bath application of BDNF causes a small but significant decrease in stimulus-ev...

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