Results 41 to 50 of about 5,314,366 (372)

Origin of life: β‐sheet amyloid conformers as the primordial functional polymers on the early Earth and their role in the emergence of complex dynamic networks

FEBS Letters, EarlyView.
The amyloid world hypothesis of the origin‐of‐life posits that the first functional polymers on the early Earth were structurally stable cross‐β‐sheet‐based peptide amyloids capable of Darwinian‐like evolution. Peptide amyloids display self‐replication and information transfer, as well as catalytic, adaptive, and evolutive properties.
Carl Peter J. Maury
wiley   +1 more source

Challenges and benchmark datasets for machine learning in the atmospheric sciences: Definition, status and outlook

Artificial Intelligence for the Earth Systems, 2022
Benchmark datasets and benchmark problems have been a key aspect for the success of modern machine learning applications in many scientific domains.
P. Dueben, M. Schultz, M. Chantry, D. Gagne, D. Hall, A. McGovern   +5 more
semanticscholar   +1 more source

Astrometric calibration and performance of the Dark Energy Camera [PDF]

, 2017
We characterize the ability of the Dark Energy Camera (DECam) to perform relative astrometry across its 500~Mpix, 3 deg^2 science field of view, and across 4 years of operation.
A. A. Plazas, A. Benoit-Lévy, A. Carnero Rosell, A. R. Walker, A. Roodman, C. E. Cunha, D. Brooks, D. Gruen, D. J. James, D. L. Burke, D. L. DePoy, D. W. Gerdes, E. Fernandez, E. Krause, E. S. Rykoff, E. Sanchez, E. Suchyta, F. Menanteau, F. Sobreira, G. Gutierrez, G. M. Bernstein, G. Tarle, H. T. Diehl, I. Sevilla-Noarbe, J. Carretero, J. Frieman, J. García-Bellido, J. Gschwend, J. L. Marshall, K. Bechtol, K. Honscheid, K. Kuehn, K. Reil, L. N. da Costa, M. A. G. Maia, M. Carrasco Kind, M. E. C. Swanson, M. March, M. Schubnell, M. Smith, M. Soares-Santos, N. Kuropatkin, null null, P. Fosalba, R. A. Gruendl, R. Armstrong, R. C. Smith, R. L. C. Ogando, R. Miquel, R. Schindler, S. Allam, S. Desai, S. Kent, T. F. Eifler, T. M. C. Abbott, T. S. Li, V. Scarpine   +56 more
core   +3 more sources

Microbial exopolysaccharide production by polyextremophiles in the adaptation to multiple extremes

FEBS Letters, EarlyView.
Polyextremophiles are microorganisms that endure multiple extreme conditions by various adaptation strategies that also include the production of exopolysaccharides (EPSs). This review provides an integrated perspective on EPS biosynthesis, function, and regulation in these organisms, emphasizing their critical role in survival and highlighting their ...
Tracey M Gloster, Ebru Toksoy Öner
wiley   +1 more source

Surface Chlorophyll-a Concentration Spatio-Temporal Variations in the Northern South China Sea Detected Using MODIS Data

Terrestrial, Atmospheric and Oceanic Sciences, 2015
This study examines the spatio-temporal variations in the sea-surface chlorophyll-a (Chl-a) concentration and their associated underlying driving forces in the northern South China Sea (SCS) from 2004 - 2010. A stratified analysis method and the Moderate
Meihong Fang, Weimin Ju, Xiangnan Liu, Zhifeng Yu, and Feng Qiu   +4 more
doaj   +1 more source

Land–atmospheric feedbacks during droughts and heatwaves: state of the science and current challenges

Annals of the New York Academy of Sciences, 2018
Droughts and heatwaves cause agricultural loss, forest mortality, and drinking water scarcity, especially when they occur simultaneously as combined events.
D. Miralles, P. Gentine, S. Seneviratne, A. Teuling   +3 more
semanticscholar   +1 more source

Applications of Cold Atmospheric Pressure Plasma Technology in Medicine, Agriculture and Food Industry

Applied Sciences, 2021
In recent years, cold atmospheric pressure plasma (CAPP) technology has received substantial attention due to its valuable properties including operational simplicity, low running cost, and environmental friendliness.
M. Domonkos, P. Tichá, J. Trejbal, P. Demo   +3 more
semanticscholar   +1 more source

Imeglimin attenuates liver fibrosis by inhibiting vesicular ATP release from hepatic stellate cells

FEBS Letters, EarlyView.
Imeglimin, at clinically relevant concentrations, inhibits vesicular ATP accumulation and release from hepatic stellate cells, thereby attenuating purinergic signaling and reducing fibrogenic activation. This mechanism reveals a newly identified antifibrotic action of imeglimin beyond glycemic control.
Seiji Nomura, Lixiang Wang, Nao Hasuzawa, Ayako Nagayama, Sawako Moriyama, Kenji Ashida, Yoshinori Moriyama, Masatoshi Nomura, Ken Yamamoto   +8 more
wiley   +1 more source

Geochemical and Geophysical Characteristics of the Balud Ophiolitic Complex (BOC), Masbate Island, Philippines: Implications for its Generation, Evolution and Emplacement

Terrestrial, Atmospheric and Oceanic Sciences, 2015
This paper presents the first field, geochemical and geophysical information on the recently recognized Early Cretaceous Balud Ophiolitic Complex (BOC) in the island of Masbate in the Central Philippines.
Pearlyn C. Manalo, Carla B. Dimalanta, Decibel V. Faustino-Eslava, Betchaida D. Payot, Noelynna T. Ramos, Karlo L. Queaño, Americus D. C. Perez, and Graciano P. Yumul Jr.   +7 more
doaj   +1 more source

Atmospheric Pressure Plasmas in Material Science [PDF]

Materials, 2021
The long-term goal of basic material research is to develop theoretical and experimental methodologies to advance the ability to produce materials with the desired compositions and properties that can be used in various applications [...]
openaire   +3 more sources