Results 41 to 50 of about 155,243 (242)

Water Retention and Availability in an Ultisol Under an Integrated Crop–Livestock–Forest System in the Matopiba Region, Brazil

open access: yesLand
Soil water retention and availability are influenced by intrinsic soil properties, management practices, and climate regimes. This study aimed to evaluate water retention and availability in an Ultisol under different integrated production systems in the
Maria Laiane do Nascimento Silva   +10 more
doaj   +1 more source

Synthesis and Conformational Assignment of N-(E)-Stilbenyloxymethylenecarbonyl-Substituted Hydrazones of Acetone and o-(m- and p-) Chloro- (nitro-) benzaldehydes by Means of and NMR Spectroscopy

open access: yesJournal of Spectroscopy, 2013
Eighteen new N-(E)-stilbenyloxyalkylcarbonyl-substituted hydrazones of ortho- (meta- and para-) chloro- (nitro-) benzaldehydes 1–18 and two analogous hydrazones of acetone 19-20 were prepared.
Przemysław Patorski   +2 more
doaj   +1 more source

Natural Gums in Drug-Loaded Micro- and Nanogels

open access: yesPharmaceutics, 2023
Gums are polysaccharide compounds obtained from natural sources, such as plants, algae and bacteria. Because of their excellent biocompatibility and biodegradability, as well as their ability to swell and their sensitivity to degradation by the colon ...
Anna Froelich   +4 more
doaj   +1 more source

Bacterial Cellulose‐Based Bilayer Passive Cooler for High‐Performance Radiative/Evaporative Cooling

open access: yesAdvanced Functional Materials, EarlyView.
A sustainable bilayer passive cooler based on bacterial cellulose integrates radiative and evaporative cooling for efficient zero‐energy temperature reduction. The scalable, low‐carbon material shows strong potential for food preservation, low‐temperature storage, and cold‐chain logistics.
Yibing Zhang   +6 more
wiley   +1 more source

Determination of bud fertility as a simple method for the determination of harvesting volume in Vitis vinifera L. cv Tannat, using two pruning systems

open access: yesOENO One, 2004
Bud fertility was estimated in two commercial vineyards of Vitis vinifera cv. Tannat in the southern region of Uruguay; it was carried out in two periods: 1983-1986 (essay A) and 2001,2002,2003 (essay B).
Mila Ferrer   +4 more
doaj   +1 more source

Sky‐Directional Radiative Cooling Meta‐Films for Daylighting Windows

open access: yesAdvanced Functional Materials, EarlyView.
A geometry‐mediated microprism meta‐film enables transparent, sky‐directional radiative cooling for daylighting windows. By decoupling control of visible transmittance from mid‐infrared emissivity, ground‐emitted heat absorption is suppressed while skyward heat dissipation is enhanced.
Seung‐Ah Yu   +7 more
wiley   +1 more source

Complexes of Cu(II) Ions and Noncovalent Interactions in Systems with L-Aspartic Acid and Cytidine-5'-Monophosphate

open access: yesBioinorganic Chemistry and Applications, 2008
Interactions between aspartic acid (Asp) and cytidine-5-monophosphate (CMP) in metal-free systems as well as the coordination of Cu(II) ions with the above ligands were studied.
Romualda Bregier-Jarzebowska   +2 more
doaj   +1 more source

Discovery of Energy‐Localized Trap States via Opto‐Electrical Spectroscopy in UWBG Perovskite La:SrSnO3 FETs

open access: yesAdvanced Functional Materials, EarlyView.
Combined UV–vis transmittance and wavelength‐dependent photo‐assisted DC I–V analyses reveal defect‐induced optical instability and a high density of deep donor‐like subgap traps in La‐doped SrSnO3. The resulting MOSFET achieves one of the highest on/off ratios reported for ABO3 perovskite devices, demonstrating the promise of stannate perovskites as ...
Sojin Jung   +17 more
wiley   +1 more source

Oxygels: Tunable Phosphorescent Hydrogels for Cherenkov‐Excited Luminescence Imaging (CELI) of Oxygen

open access: yesAdvanced Healthcare Materials, EarlyView.
Biocompatible hydrogels with covalently embedded near‐infrared phosphorescent probes enable local tissue pO2 quantification by means of Cherenkov‐excited luminescence imaging (CELI), where optical excitation occurs within tissues upon irradiation with high‐energy electron beams.
Simin Belali   +7 more
wiley   +1 more source

Labeling Stem Cells with a Near-Infrared Fluorescent Heptamethine Dye for Noninvasive Optical Tracking

open access: yesCell Transplantation, 2011
Near-infrared (NIR) fluorescent agents hold great promise for noninvasive in vivo imaging. We have recently reported that a NIR fluorescent heptamethine dye, IR-780 iodide, exhibits unique optical properties for biomedical imaging.
Chao Zhang   +10 more
doaj   +1 more source

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