Results 31 to 40 of about 25,907 (289)

Azospirillum brasilense, urease inhibitor, and sulfur contributes on initial growth of wheat [PDF]

open access: yesBrazilian Journal of Biology
Wheat (Triticum aestivum L.) is an annual crop with potential for cultivation expansion, requiring nutritional management that can favor the nitrogen use efficient and plant growth.
K. A. M. Inacio   +5 more
doaj   +1 more source

IMPDH inhibition enhances cytarabine efficacy in SAMHD1‐expressing leukaemia cells via guanine nucleotide depletion

open access: yesMolecular Oncology, EarlyView.
Cytarabine is a key therapy for acute myeloid leukaemia (AML), but its efficacy is limited by the dNTPase SAMHD1, which hydrolyses its active metabolite. Screening nucleotide biosynthesis inhibitors revealed that IMPDH inhibitors selectively sensitise SAMHD1‐proficient AML cells to cytarabine.
Miriam Yagüe‐Capilla   +9 more
wiley   +1 more source

Época de colheita e desenvolvimento vegetativo de aveia preta Harvesting time and vegetative development of black oats

open access: yesScientia Agricola, 2001
Embora a aveia preta apresente importantes características de interesse agronômico, os estudos direcionados ao conhecimento da planta visando aumentos de produtividade são ainda em pequeno número em condições brasileiras.
Claudia Antonia Vieira Rossetto   +1 more
doaj   +1 more source

Studies on the Tillering Primordium and Tillering Bud in Rice seedlings : (7) Developmental process of the tillering primordium and tillering bud

open access: yesJapanese Journal of Crop Science, 1958
1) This investigation was undertaken to determine the developmental process of the tillering primordium and tillering bud in rice seedlings. 2) Rice seedlings used in this study were nursed in sand culture from the sowing to the stages of the third foliage leaf, and after then in water culture. Harvested samples were fiked in mixtured fluid of Formalin,
openaire   +2 more sources

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

open access: yesFEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Tiller demography of tall fescue and tall wheatgrass cut at different times during the reproductive phase

open access: yesGrassland Research, 2023
Background Tall fescue (TF) and tall wheatgrass (TW) are the main temperate perennial grasses used for livestock grazing in the Pampas region of Argentina.
Jorge O. Scheneiter   +3 more
doaj   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar   +2 more
wiley   +1 more source

Nitrogênio e enxofre em características produtivas do capim-braquiária proveniente de área de pastagem em degradação Nitrogen and sulphur for productive characteristics of signalgrass from degrading pasture area

open access: yesRevista Brasileira de Zootecnia, 2006
Objetivou-se avaliar os efeitos de combinações de doses de N com as de S para as características produtivas do capim-braquiária (Brachiaria decumbens), coletado em cilindros com plantas + solo em uma pastagem em degradação em área de Neossolo ...
Edna Maria Bonfim-Silva   +1 more
doaj   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

open access: yesAdvanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara   +8 more
wiley   +1 more source

Importance of Overlooked Crop Biomass Components in Sugarcane Nitrogen Nutrition Studies

open access: yesNitrogen
Sugarcane crops typically have a high fertiliser nitrogen (N) input, with low N recovery efficiencies. Nitrogen is essential to crop productivity, but excess application can have negative environmental consequences. Despite the importance of coordinating
Daniel M.N. Poultney   +2 more
doaj   +1 more source

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