Results 41 to 50 of about 9,546 (249)
Continuity and anomalous fluctuations in random walks in dynamic random environments: numerics, phase diagrams and conjectures [PDF]
, 2012 We perform simulations for one dimensional continuous-time random walks in two dynamic random environments with fast (independent spin-flips) and slow (simple symmetric exclusion) decay of space-time correlations, respectively. We focus on the asymptotic speeds and the scaling limits of such random walks. We observe different behaviors depending on the
arxiv +1 more source
Improved Chemical Synthesis of Avenanthramides Family and its Analogs by Mixed Anhydride Method
European Journal of Organic Chemistry, Accepted Article.Amides derived from common hydroxycinnamic acids — including 4‐hydroxycinnamic acid, 3‐methoxy‐4‐hydroxycinnamic acid, 3,4‐dihydroxycinnamic acid, 3,4‐dimethoxycinnamic acid, and 3,4,5‐trimethoxycinnamic acid — along with various free aminobenzoic acids, such as 5‐hydroxy‐2‐aminobenzoic acid, a key component of the avenanthramide family, have been ...
Armando Zarrelli, Luigi Longobardo
wiley +1 more source
Redistribution of phosphorus in soil through cover crop roots
Brazilian Archives of Biology and Technology, 2004 The objective of this study was to evaluate if cover crops can absorb P from the upper layers and transport it in their roots to subsoil layers. Samples of an Oxisol were placed in PVC columns.
Júlio C. Franchini +2 more
doaj +1 more source
Microscopy Research and Technique, EarlyView.ABSTRACT Haloxyfop‐R‐methyl (HRM) is extensively employed to control annual and perennial grass weeds. This study aimed to investigate the cyto‐genotoxic effects of HRM at concentrations of 1.19, 2.38, and 4.76 mg/L over various time intervals (24, 48, 72, and 96 h) on Allium cepa root.
Recep Liman +4 more
wiley +1 more source
Random Forests and Networks Analysis [PDF]
, 2017 D. Wilson~\cite{[Wi]} in the 1990's described a simple and efficient algorithm based on loop-erased random walks to sample uniform spanning trees and more generally weighted trees or forests spanning a given graph. This algorithm provides a powerful tool in analyzing structures on networks and along this line of thinking, in recent works~\cite{AG1,AG2 ...
arxiv +1 more source
Evaluating the potential for snowmelt phosphorus losses from perennial forage crops
Journal of Environmental Quality, EarlyView.Abstract In cold regions, there is concern that losses of P with snowmelt runoff following freeze and thaw of vegetation may be greater from perennial forages relative to annual crops. We evaluate the drivers of P losses with snowmelt runoff over a network of field‐scale small watersheds in Manitoba, Canada, following annual crops (59 site‐years ...
Henry Wilson +4 more
wiley +1 more source
Planta Daninha, 1998 Em sistemas de cultivo em semeadura direta, a aveia é uma das culturas de inverno mais importantes entre as que são utilizadas para formação de cobertura morta.
Ubiratã S. Jacobi, Nilson G. Fleck
doaj +1 more source
Biodegradable Polymers for Plant Nutrient Delivery and Recovery
Macromolecular Bioscience, EarlyView.This review article discusses the use of biodegradable polymers to address several grand challenges in agriculture: to improve the delivery of nitrogen and phosphorous to crops, to optimize plant uptake, and to enhance the recovery of these nutrients from wastewater, to recycle them and reduce water pollution. Abstract The current use of fertilizers is
Alice Boarino +4 more
wiley +1 more source
Fave: Sección Ciencias Agrarias, 2022 La sustentabilidad de los ambientes agrícolas en la región pampeana húmeda argentina es afectada por el monocultivo de soja (Glycine max (L.) Merr.).
J. E. Capurro, S. Montico
doaj +1 more source
Orphan crops of archaeology‐based crop history research
PLANTS, PEOPLE, PLANET, EarlyView.Agrobiodiversity is central to sustainable farming worldwide. Cultivation, conservation and reintroduction of diverse plant species, including ‘forgotten’ and ‘underutilized’ crops, contribute to global agrobiodiversity, living ecosystems and sustainable food production.
Daniel Fuks +23 more
wiley +1 more source