Results 101 to 110 of about 312,714 (260)

Carbon indices to assess quality of management systems in a Subtropical Acrisol

open access: yesScientia Agricola
: Management systems to improve soil quality are essential for agricultural and environmental sustainability. We assessed the quality of soil management systems applied to a subtropical Acrisol in terms of the carbon management index (CMI), the ...
Josiléia Acordi Zanatta   +4 more
doaj   +1 more source

Small‐Scale Magnetic Peristaltic Soft Robot With Mobility and Transport Capabilities

open access: yesAdvanced Intelligent Systems, EarlyView.
This study introduces a miniature, untethered soft magnetic microrobot with peristaltic capabilities for both locomotion and cargo transport. Eight helically magnetized elastomeric strips deform under rotating fields (10–80 mT, 1–5 Hz), enabling movement across rods and lumina at up to 4.1 body lengths min‐¹.
Mohammad Hasan Dad Ansari   +4 more
wiley   +1 more source

Till

open access: yesJournal of American History, 2023
openaire   +2 more sources

Lost ground, lost value: Investigating the relationship between soil erosion and agricultural land value

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract This study examines the impact of soil erosion on agricultural land values in the United States (US) Midwest. Based on a novel county‐level panel data set with information on soil erosion levels and agricultural land values covering five census years (1997, 2002, 2007, 2012, and 2017), we separately investigate the direct effect of two types ...
Le Chen   +3 more
wiley   +1 more source

Choice experiments on land managers' participation in environmental programs: A systematic review and meta‐analysis of estimate validity

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Discrete choice experiments are increasingly being used to estimate land managers' willingness to accept participation in incentive‐based environmental programs. This is a specific application of discrete choice experiments: the estimation of willingness to accept for a private good (program participation) where respondents have to make trade ...
Anastasio J. Villanueva   +2 more
wiley   +1 more source

Negotiating contested spaces and places: Narratives of social suffering and resistance in racialized Cape Town communities

open access: yesAmerican Journal of Community Psychology, EarlyView.
Abstract This study employs a schizocartographic approach to explore community narratives of space, memory, and violence in Kraaifontein, Cape Town. Through participants' accounts, ordinary places—gardens, shops, blocks, sports grounds, and streets—emerge as ambivalent geographies where trauma, resilience, and belonging intersect.
Guido Veronese   +2 more
wiley   +1 more source

Effects of Phosphorus on No-Till, Minimum-Till, and Conventional Till Irrigated Field Corn

open access: yes, 1987
This investigation involved three tillage treatments, fall plowed (conventional) (moldboard IS-centimeter depth), fall chiseled (ripped) (25-centimeter depth), and no-tillage (zero tillage) replicated four times on an established alfalfa field. Rye was planted in the fall and harvested prior to planting the corn.
openaire   +2 more sources

Sleep Disturbances in Adults With Tuberous Sclerosis Complex: Influences of Treatment and Clinical Features

open access: yesAmerican Journal of Medical Genetics Part A, EarlyView.
ABSTRACT Tuberous sclerosis complex (TSC) is a genetic condition with multisystem neurocutaneous signs, including hamartomas, epilepsy, and neuropsychological difficulties. Although sleep disorders are increasingly recognized in TSC, they remain poorly described in adults.
Kirstin A. Risgaard   +6 more
wiley   +1 more source

Effect of Laser Posterior Nasal Neurolysis for the Treatment of Chronic Rhinitis: A Randomized Controlled Trial

open access: yesInternational Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Background To determine the safety and efficacy of laser ablation of the posterior nasal nerve (PNN) for the treatment of chronic rhinitis. Methods This study was a single‐center, prospective, single‐blinded, randomized sham‐controlled trial. Patients with a 24‐h reflective Total Nasal Symptom Score (rTNSS) ≧ 5, rhinorrhea ≧ 2, and congestion ≧
Jyun‐Yi Liao   +9 more
wiley   +1 more source

Das fehlende Glied der Ferrocenophan‐Chemie: Isolierung eines Carba[1]Ferrocenophans

open access: yesAngewandte Chemie, EarlyView.
Die Synthese und Isolierung eines kristallinen Carba[1]Ferrocenophans wird berichtet. Ein einzelnes Kohlenstoffatom ist das bislang kleinste Verbrückungsmotiv, das in ein Ferrocenophan eingebaut werden konnte. Dies resultiert in einem Diederwinkel der Ebenen der Cyclopentadienylringe von 36.7°, was entsprechend die größte Abwinkelung relativ zu ...
Aylin Feuerstein   +5 more
wiley   +1 more source

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