Results 21 to 30 of about 2,543,553 (287)

Correlates of HIV-1 genital shedding in Tanzanian women. [PDF]

, 2011
BACKGROUND: Understanding the correlates of HIV shedding is important to inform strategies to reduce HIV infectiousness. We examined correlates of genital HIV-1 RNA in women who were seropositive for both herpes simplex virus (HSV)-2 and HIV-1 and who ...
Clare Tanton, David A. Ross, Watson-Jones Deborah, Weiss, Helen A, Watson-Jones, Deborah, Helen A Weiss, Richard J. Hayes, Laurent Belec, Tanton, Clare, Le Goff, Jerome, Hayes, Richard J, Deborah Watson-Jones, Le Goff Jerome, Belec Laurent, Baisley, Kathy, Changalucha John, Weiss Helen A., Everett Dean, Ross, David A, Everett, Dean, David A Ross, Kathy Baisley, Changalucha, John, Mary Rusizoka, Jerome Le Goff, Helen A. Weiss, John Changalucha, Tanton Clare, Dean Everett, Richard J Hayes, Baisley Kathy, Ross David A., Rusizoka, Mary, Rusizoka Mary, Hayes Richard J., Belec, Laurent   +35 more
core   +1 more source

Adaptive under‐frequency load shedding scheme for power systems with high wind power penetration considering operating regions

IET Generation, Transmission & Distribution, 2022
With the ever‐increasing penetration of wind power into power systems, wind turbine generators (WTGs) are required to provide frequency regulation services to maintain the system frequency stability.
Xingyang Wu, Jianfeng Dai, Yi Tang, Feng Xue   +3 more
doaj   +1 more source

Low voltage microgrid islanding through adaptive load shedding

, 2017
The aim of this work is to propose an adaptive load shedding procedure for Microgrid application, designed for blackout prevention and frequency transient containment in case of Microgrid islanding.
F. Monachesi, Monachesi, F., S. Massucco, Ragaini, E., Massucco, S., Fidigatti, A., F. D'Agostino, F. Silvestro, A. Fidigatti, E. Ragaini, D'Agostino, F., Silvestro, F.   +11 more
core   +1 more source

Development of Adaptive Artificial Neural Network Security Assessment Schema for Malaysian Power Grids

IEEE Access, 2019
The mission of the power system operator has become more complicated than before due to increasing load demand, which causes power systems to operate near their security limits.
Ahmed N. Al-Masri, Mohd Zainal Abidin Ab Kadir, Ali Saadon Al-Ogaili, Yap Hoon   +3 more
doaj   +1 more source

Comparison of non-communication based DC load shedding schemes [PDF]

, 2022
Whenever the total power that can be provided by the distributed energy resources (DERs) is less than the total power demand of the loads, the DC bus voltages start to fall which could lead to power collapse.
Burt, Graeme, Babagana, Abdulrahman, Zaman, Taimur, Syed, Mazheruddin, Seferi, Yljon   +4 more
core   +1 more source

An Adaptive Load-Shedding Approach Applying Wide-Area Measurement Systems (WAMS)

Tehnički Glasnik
Power system collapses are among the primary challenges in modern grids. Today's power grids face stressful conditions day by day. The increase in electricity consumption, the expansion of electrical networks, and the oldness of protective equipment are ...
Kazem Mehrabi, Mohammad Farhadi-Kangarlu, Behrouz Tousi   +2 more
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source

Optimizing frequency stability with adaptive fast frequency reserves and Wide-Area Monitoring Systems

International Journal of Electrical Power & Energy Systems
This paper introduces a novel approach to optimizing frequency stability in power systems by designing System Integrity Protection Schemes (SIPS) and implementing adaptive Fast Frequency Reserves (FFR) within a Wide-Area Monitoring Protection Automation ...
Bwandakassy Elenga Baningobera, Irina Oleinikova, Kjetil Uhlen   +2 more
doaj   +1 more source

Effect of genital herpes on cervicovaginal HIV shedding in women co-infected with HIV AND HSV-2 in Tanzania. [PDF]

, 2013
To compare the presence and quantity of cervicovaginal HIV among HIV seropositive women with clinical herpes, subclinical HSV-2 infection and without HSV-2 infection respectively; to evaluate the association between cervicovaginal HIV and HSV shedding ...
Riedner, Gabriele, Leonard Maboko, Mabey, David, Lyamuya Eligius, Helen A Weiss, See Profile, Belec Laurent, Hoelscher Michael, Mabey David, Weiss Helen A., Mary Rusizoka, Lyamuya, Eligius, Helen A. Weiss, Maboko Leonard, Maboko, Leonard, Rusizoka, Mary, Rusizoka Mary, Jim Todd, Belec, Laurent, Todd Jim, Weiss, Helen A, Hayes Richard, Hoelscher, Michael, Laurent Belec, Michael Hoelscher, Todd, Jim, Weiss, Helen A., Hayes, Richard, Richard Hayes, Gabriele Riedner, Riedner Gabriele, Eligius Lyamuya, David Mabey   +32 more
core   +1 more source

Translophagy—A potential link between autophagy impairment and translational errors

FEBS Letters, EarlyView.
Neurodegenerative diseases are characterised by the accumulation of abnormal proteins and protein aggregates, but their origin often remains unknown. We propose that selective autophagy removes damaged protein‐making machinery, preventing errors during protein synthesis.
Mykola V. Korolchuk, Gailing Ma, Robin Antrobus, Diego Manni, Marco Trevisan‐Herraz, Mustafa Khwaja, Max Brown, Gavin D. Richardson, Masaaki Komatsu, Daniel Erskine, Viktor I. Korolchuk, Tetsushi Kataura   +11 more
wiley   +1 more source