Results 1 to 10 of about 1,560,902 (263)

Host molecular factors and viral genotypes in the mother-to-child HIV-1 transmission in sub-Saharan Africa

Journal of Public Health in Africa, 2017
Maternal viral load and immune status, timing and route of delivery, viral subtype, and host genetics are known to influence the transmission, acquisition and disease progression of human immunodeficiency virus-1 (HIV-1) infection. This review summarizes
Linda Chapdeleine M. Mouafo, Béatrice Dambaya, Nicole N. Ngoufack, Céline N. Nkenfou   +3 more
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Comparing reef structure and mobile species assemblages at remnant and restored mussel reefs

Conservation Science and Practice
The global loss of coastal habitats has reduced the availability of intact ecosystems to serve as reference systems for marine restoration and conservation, which poses a significant challenge for establishing ecological baselines to evaluate restoration
Al Alder, Jenny Hillman
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A VLBI-based combined catalog of radio source positions

Astronomy & Astrophysics
Context. The International Celestial Reference System is realized in the radio band by a catalog of radio source positions obtained by very long baseline interferometry (VLBI) measurements and is called the International Celestial Reference Frame (ICRF).
Lambert S., Malkin Z.
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Interception of Epoxide ring to quorum sensing system in Enterococcus faecalis and Staphylococcus aureus

AMB Express, 2023
Quorum sensing inhibitor (QSI) has been attracting attention as anti-virulence agent which disarms pathogens of their virulence rather than killing them.
Mohammed Y. Refai, Ahmed M. Elazzazy, Said E. Desouky, Mohammed Abu-Elghait, Eman A. Fayed, Sulaiman M. Alajel, Abdullah A. Alajlan, Mona O. Albureikan, Jiro Nakayama   +8 more
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Spatial reference system of Serbia [PDF]

Mining and Metallurgy Engineering Bor, 2013
The existing national reference system in Serbia, used for over 70 years, is based on the non - geocentric Bessel ellipsoid and Gauss - Kruger projection of meridian zones.
Vušović Nenad, Svrkota Igor, Vaduvesković Zoran   +2 more
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Gestalt-theoretical Joke Analyses

Gestalt Theory
5 ...
Metz-Göckel Hellmuth
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Blazars define a stable celestial reference frame

Astronomy & Astrophysics
Context. Recent work has shown that optical-radio position offsets and radio position variability are inversely correlated with the optical photometric variability of active galactic nuclei (AGN).
Secrest N. J., Lambert S.
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Astrometric properties of reference frame sources as a function of redshift

Astronomy & Astrophysics
Context. Previous studies based on the latest realisation of the International Celestial Reference Frame (ICRF3) have suggested a correlation between astrometric properties (such as the radio-optical offset) and redshift for active galactic nuclei (AGNs).
Zhang Z.-Y., Liu N., Zhang X.-X., Nurul Huda I., Guo S.-F., Zhu Z., Liu J.-C., Yao J., Wang Z.-W., Yu H.-F., Zhang D.-D.   +10 more
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Model Reference Control of Hyperchaotic Systems

Journal of Applied Mathematics, 2012
We have applied a famous engineering method, called model reference control, to control hyperchaos. We have proposed a general description of the hyperchaotic system and its reference system.
Pengfei Zhao, Cai Liu, Xuan Feng
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Corrected mu_delta for Stars of Hipparcos Catalogue from Independent Latitude Observations over Many Decades [PDF]

Serbian Astronomical Journal, 2011
During the last century, there were many so-calledindependent latitude (IL) stations with the observations whichwere included into data of a few international organizations(like Bureau International de l'Heure -- BIH, International PolarMotion Service --
Damljanovic, G., Milic, I. S.
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