Results 61 to 70 of about 12,366,361 (187)
Geophysical Research Letters, Volume 53, Issue 17, 16 September 2026.Abstract Satellite observations during ionospheric modification experiments have reported trans‐ionospheric high‐frequency (HF) wave propagation even when the pump frequency lies below the peak plasma frequency. Such behavior is often attributed to large‐scale density irregularities that locally permit ordinary‐mode (O‐mode) propagation, but this does ...
Danish Naeem, Dong‐Hun Lee, Kihong Kim
wiley +1 more source
Cometary observations in light-polluted environments: a case study of interstellar comet 2I/Borisov
Comets and asteroids have long captured human curiosity, and until recently, all documented examples belonged to our Solar System. That changed with the discovery of the first known interstellar object, 1I/2017 U1 (‘Oumuamua), in 2017.
Trigo-Rodríguez, Josep María +6 more
core +1 more source
PLoS ONE, 2016 Cytochrome bd-I is one of the three proton motive force-generating quinol oxidases in the O2-dependent respiratory chain of Escherichia coli. It contains one low-spin haem (b558) and the two high-spin haems (b595 and d) as the redox-active cofactors.
Sergey A Siletsky +3 more
doaj +1 more source
Analysis of the capacity changes in the "Garajevac-istok" excavation by applying the GIS technology / Анализ изменений объема карьера «Гараевац - восток», выполненный с помощью ГИС технологии / Analiza promena kapaciteta kopa 'Garajevac - Istok' primenom GIS tehnologije [PDF]
Vojnotehnički Glasnik, 2019 The paper discusses the concept of construction and monitoring of capacity changes - the volume of the "Garajevac-Istok" excavation (mine), located in the cadastral municipality of Novi Bečej. Namely, in the earlier period, the physical surface of the
Mirko A. Borisov +3 more
doaj +1 more source
Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 4, August 2026.Abstract Snow on sea ice modulates the Earth's radiation budget and sea ice mass balance, yet satellite retrievals of Arctic snow depth remain subject to substantial algorithmic uncertainty. We develop a multi‐model machine learning (ML) framework for retrieving spring snow depth over Arctic sea ice from Advanced Microwave Scanning Radiometer 2 (AMSR2).
Yi Zhou +6 more
wiley +1 more source
Acta Biomedica Scientifica, 2012 The syndrome of intracranial hypertension at the effects of closed craniocerebral injury manifests functional and. organic disorders of varying degrees of severity.
T. A. Prokayeva +4 more
doaj
On the positivity and integrality of coefficients of mirror maps
Bulletin of the London Mathematical Society, Volume 58, Issue 8, August 2026.Abstract We present natural conjectural generalisations of the ‘positivity and integrality of mirror maps’ phenomenon, encompassing the mirror maps appearing in the Batyrev–Borisov construction of mirror Calabi–Yau complete intersections in Fano toric varieties as a special case.
Sophie Bleau, Nick Sheridan
wiley +1 more source
DIAGNOSTIC MATHEMATICAL MODEL OF A HYDRAULIC DAMPER OF HELICOPTER ROTOR SLEEVE
Научный вестник МГТУ ГА, 2016 The article presents an example of the implementation of mathematical modeling in practice of overhaul of units of the helicopter hydraulic system. In particular, it sets out the methodology for constructing diagnostic mathematical model of a hydraulic ...
U. A. Borisov, B. A. Solov’Ev
doaj
Permangant-oxidizable carbon as a marker of soil quality in agrolandscapes
Бюллетень Почвенного института им. В.В. ДокучаеваDifferent laboratory methods of soil quality assessment are considered by the example of soils of the North-Pre-Caucasian province. The article presents a detailed protocol for quantitative determination of Permanganate oxidizable carbon (POXC) fraction ...
A. A. Prokhorov +2 more
doaj +1 more source
Socio-economic aspects of medical errors and their consequences in medical organizations
Модернизация, инновация, развитие, 2019 Medical errors and adverse events are a global problem of strategic importance, accompanied by economic costs that impose a burden on the health care system, the country's economy and society as a whole.
O. L. Zadvornaya +3 more
doaj +1 more source