Results 31 to 40 of about 152,383 (315)

Short-Term Effects of Drying and Rewetting on CO2 and CH4 Emissions from High-Altitude Peatlands on the Tibetan Plateau

Atmosphere, 2016
This study used mesocosms to examine the effects of alternate drying and rewetting on CO2 and CH4 emissions from high-altitude peatlands on the Tibetan Plateau.
Xiaoyang Zeng, Yongheng Gao
doaj   +1 more source

Estimates of global terrestrial isoprene emissions using MEGAN (Model of Emissions of Gases and Aerosols from Nature) [PDF]

, 2006
Reactive gases and aerosols are produced by terrestrial ecosystems, processed within plant canopies, and can then be emitted into the above-canopy atmosphere.
P. Harley, P. I. Palmer, Karl, T, C. Wiedinmyer, T. Karl, Palmer, P. I., Wiedinmyer, C, Guenther, A., Harley, P., A. Guenther, Palmer, PI, Geron, C., Wiedinmyer, C., Guenther, A, Harley, P, Geron, C, Karl, T., C. Geron   +17 more
core   +1 more source

²⁸SiOv= 0J= 1–0 emission from evolved stars [PDF]

Astronomy & Astrophysics, 2016
Observations of 28SiO v=0 J=1-0 line emission (7-mm wavelength) from AGB stars show in some cases peculiar profiles, composed of a central intense component plus a wider plateau. Very similar profiles have been observed in CO lines from some AGB stars and most post-AGB nebulae and, in these cases, they are clearly associated with the presence of ...
de Vicente, P., Bujarrabal, V., Díaz-Pulido, A., Albo, C., Alcolea, J., Barcia, A., Barbas, L., Bolaño, R., Colomer, F., Diez, M. C., Gallego, J. D., Gómez-González, J., López-Fernández, I., López-Fernández, J. A., López-Pérez, J. A., Malo, I., Moreno, A., Patino, M., Serna, J. M., Tercero, F., Vaquero, B.   +20 more
openaire   +2 more sources

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Investigating ternary biogas-hydrogen-diethyl ether blends for emission reduction and performance enhancement in CI engines: A Taguchi approach

Results in Engineering
This study evaluates the emissions and performance characteristics of a compression ignition (CI) engine operating in dual fuel mode with ternary blends of biogas, hydrogen, and diethyl ether (DEE).
R Manimaran, Prasshanth CV, Aditya Sai Samavedam, T M Yunus Khan, Naif Almakayeel, Sreekanth Manavalla, M Feroskhan   +6 more
doaj   +1 more source

Soil nitric and nitrous oxide emissions across a nitrogen fertilization gradient in root crops: A case study of carrot (Daucus carota) production in Mediterranean climate.

PLoS ONE, 2023
Insufficient knowledge about soil nitrous and nitric oxide (N2O and NO) emissions from vegetable production limits our ability to constrain their atmospheric budget.
Elided Lumor, Udi Zurgil, Ilya Gelfand
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

Passive exposure to e-cigarette emissions: Sensory irritation, timing and association with VOCs

Tobacco Prevention and Cessation, 2019
In the frame of the TackSHS Project, we examined irritation symptoms reported by the participants passively exposed to e-cigarette emissions during 30 minutes, their timing and their association with the concentrations of volatile organic compounds (VOCs)
Stephanie Teloniatis
doaj   +1 more source

PARK(ing) time–How park deficiency affects the biological clock in a Drosophila model of Parkinson's disease

FEBS Letters, EarlyView.
Drosophila park mutants serve as a model for Parkinson's disease. We used this strain to investigate the connection between oxidative stress and the circadian clock mechanism. We showed that increased oxidative stress affects the physiology of pacemaker cells, disrupting their daily structural plasticity. Lack of rhythmic signaling from pacemaker cells
Kamila Zientara, Kinga Skoczek, Elzbieta Pyza, Milena Damulewicz   +3 more
wiley   +1 more source

Ozone stress as a driving force of sesquiterpene emissions: a suggested parameterisation [PDF]

, 2012
Sesquiterpenes (C15H24) are semi-volatile organic compounds emitted by vegetation and are of interest in atmospheric research because they influence the oxidative capacity of the atmosphere and contribute to the formation of secondary organic aerosols ...
Dittmann, A., Hellen, H., H. Hellén, Bourtsoukidis, E., Dittmann, Anna, H. Hakola, Jacobi, Stefan, E. Bourtsoukidis, Hakola, H., Bonn, Boris, Hakola, Hannele, Bonn, B., S. Jacobi, A. Dittmann, Bourtsoukidis, Efstratios, B. Bonn, Jacobi, S., Hellén, Heidi   +17 more
core   +1 more source