Results 41 to 50 of about 5,408,281 (241)

Shuttle on-orbit contamination and environmental effects [PDF]

, 1985
Ensuring the compatibility of the space shuttle system with payloads and payload measurements is discussed. An extensive set of quantitative requirements and goals was developed and implemented by the space shuttle program management.
Ehlers, H. K. F., Jacobs, S., Leger, L. J., Miller, E.   +3 more
core   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Metabolomic effects of CeO2, SiO2 and CuO metal oxide nanomaterials on HepG2 cells

Particle and Fibre Toxicology, 2017
Background To better assess potential hepatotoxicity of nanomaterials, human liver HepG2 cells were exposed for 3 days to five different CeO2 (either 30 or 100 μg/ml), 3 SiO2 based (30 μg/ml) or 1 CuO (3 μg/ml) nanomaterials with dry primary particle ...
Kirk T. Kitchin, Steve Stirdivant, Brian L. Robinette, Benjamin T. Castellon, Xinhua Liang   +4 more
doaj   +1 more source

Periodically Varying Externally Imposed Environmental Effects on Population Dynamics [PDF]

, 2004
Effects of externally imposed periodic changes in the environment on population dynamics are studied with the help of a simple model. The environmental changes are represented by the temporal and spatial dependence of the competition terms in a standard ...
A. Okubo, C. T. Lee, C. Tsallis, J. C. Skellam, J. Murray, L. Giuggioli, M. Ballard, M. N. Kuperman, R. A. Fisher, V. M. Kenkre, V. M. Kenkre   +10 more
core   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Intestine of invasive fish Prussian carp as a target organ in metal exposure assessment of the wastewater impacted freshwater ecosystem

Ecological Indicators, 2021
The application of invasive fish Prussian carp (Carassius gibelio Bloch, 1782) as bioindicator organism, using intestine as bioindicator tissue of anthropogenic influence in the lowland Ilova River was estimated.
Tatjana Mijošek, Vlatka Filipović Marijić, Zrinka Dragun, Dušica Ivanković, Nesrete Krasnići, Zuzana Redžović, Marijana Erk   +6 more
doaj   +1 more source

The Effects of Environmental Factors on the Dynamic Growth Pattern of Mangrove Avicennia Marina [PDF]

, 2012
Avicennia marina is a species of mangrove tree occurs in the intertidal zones of estuarine areas in Asia, including Indonesia. Mangrove within the genus member of Avicennia have long dominated many coastal areas along Semarang and Demak coasts.
Anggoro, S. (Sutrisno), Hastuti, E. D. (Endah), Pribadi, R. (Rudhi)   +2 more
core  

DEM simulation of soil-tool interaction under extraterrestrial environmental effects [PDF]

, 2017
In contrast to terrestrial environment, the harsh lunar environment conditions include lower gravity acceleration, ultra-high vacuum and high (low) temperature in the daytime (night-time).
Arroyo Alvarez de Toledo, Marcos, Jiang, Mingjing, Rodríguez Dono, Alfonso, Xi, Banglu   +3 more
core   +2 more sources

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

FEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes, Guilherme M. Azevedo, Amanda P. Barcellos, Diana Bahia   +3 more
wiley   +1 more source

Compact Archimedean spiral antenna with high gain for electrostatic discharge detection

IET Microwaves, Antennas & Propagation
A compact Archimedean spiral antenna with high gain for electrostatic discharge (ESD) detection is investigated. A frustum‐shaped cavity proposed in this work is formed to optimise the maximum antenna gain.
Tong Wang, Dongwei Chen, Mingjie Li, Weidong Liu, Qingyuan Fang   +4 more
doaj   +1 more source