Results 31 to 40 of about 4,717,932 (275)
The pulling force of a single DNA molecule condensed by spermidine
, 2004 In a recent experiment, a single DNA double helix is stretched and relaxed in the presence of spermidine, a short positive polyelectrolyte, and the pulling force is measured as a function of DNA extension.
Alberts +12 more
core +1 more source
Precipitation concentration changes in Spain 1946–2005 [PDF]
Natural Hazards and Earth System Sciences, 2011 Abstract. An analysis was made of the Precipitation Concentration Index using the new MOPREDAS database of monthly precipitation in Spain (Monthly Precipitation Data base of Spain). The database was compiled after exhaustive quality control of the complete digitalized Spanish Meterological Agency (AEMet) archives and contains a total set of 2670 ...
de Luis M +3 more
openaire +5 more sources
Developmental changes in rat blood choline concentration [PDF]
Biochemical Journal, 1981 1. Serum choline concentration in the newborn rat is extremely high and declines as the rat matures until adult values are attained at 20 days of age. 2. Rat milk is a rich source of choline, and rat pups denied access to milk had significantly lower serum choline concentrations than did fed littermates.
S H, Zeisel, R J, Wurtman
openaire +2 more sources
Concentration on knowledge and change management at metallurgical company [PDF]
Metalurgija, 2008 The subject of this paper is an analysis of one of the most crucial aspects of the contemporary business, which is knowledge and change management. Competition on the market is more and more stronger.
Gajdzik, B.
doaj
Effect of gadolinium concentration on temperature change under magnetic field.
PLoS ONE, 2019 Gadolinium based contrast agents (GBCAs) were found to play a role in nephrogenic systemic fibrosis in patients with and without renal impairment. Therefore, preserving the structural stability of GBCAs to reduce their propensity to liberate Gd3+ is of ...
Kemal Arda, Sinan Akay, Cevat Erisken
doaj +1 more source
Spatial difference of climate change effects on wheat protein concentration in China
Environmental Research Letters, 2021 Climate change effects on global food security are not only limited to its effects on the yield of cereals but also their nutritional quality. However, climate change effects on crop nutritional quality, particularly grain protein concentration (PC) on a
Weimo Zhou +3 more
doaj +1 more source
OENO One, 2021 The present research focused on the characterisation of climate evolution in a typical Apulian region for table grape production under the protected geographical indication, “Uva di Puglia I.G.P.” Two thirty-year time window period (TW) were analysed ...
Vittorio Alba +2 more
doaj +1 more source
Vitamin D Concentration Changes after Bariatric Surgery
Journal of Obesity, 2023 Introduction. Bariatric surgery causes physiological and anatomical changes in the gastrointestinal tract that interfere with intestinal absorption and, consequently, with the nutritional status, especially about vitamin D. The aim of the study was to evaluate the vitamin D levels and body composition of these patients in the Roux-en-Y gastric bypass ...
Vanessa Mayana Alves Baad +6 more
openaire +3 more sources
Atmosphere, 2022 Precipitation, as an important part of the hydrological cycle, is often related to flood and drought. In this study, we collected daily rainfall data from 21 rainfall stations in Shaanxi Province from 1961 to 2017, and calculated eight extreme climate ...
Shuangtao Wang +3 more
doaj +1 more source
Optical oxygen sensing with artificial intelligence [PDF]
, 2019 Luminescence-based sensors for measuring oxygen concentration are widely used in both industry and research due to the practical advantages and sensitivity of this type of sensing. The measuring principle is the luminescence quenching by oxygen molecules,
Baumgartner, Michael +2 more
core +2 more sources