A5048905391- Soil Carbon and Nitrogen Dynamics
- Ophthalmology and Visual Impairment Studies
- Soil and Water Nutrient Dynamics
- Visual perception and processing mechanisms
- Crop Yield and Soil Fertility
- Bioenergy crop production and management
- Corneal surgery and disorders
- Peatlands and Wetlands Ecology
- Soil and Unsaturated Flow
- Retinal Diseases and Treatments
- Soil erosion and sediment transport
- Biofuel production and bioconversion
- Soil Geostatistics and Mapping
- Clay minerals and soil interactions
- Intraocular Surgery and Lenses
- Isotope Analysis in Ecology
- Rice Cultivation and Yield Improvement
- Plant Micronutrient Interactions and Effects
- Retinopathy of Prematurity Studies
- Wildlife-Road Interactions and Conservation
- Plant nutrient uptake and metabolism
- Glaucoma and retinal disorders
- Forest Biomass Utilization and Management
- Ecology and Vegetation Dynamics Studies
- Pasture and Agricultural Systems
Agricultural Research Service
2015-2025
Agricultural Research Service - Plains Area
2012-2024
Ulverscroft (United Kingdom)
2024
NIHR Clinical Research Network
2024
Cooper University Health Care
2024
Cooper Medical School of Rowan University
2024
Hertfordshire Community NHS Trust
2023-2024
Kansas State University
2002-2024
National Renewable Energy Laboratory
2024
Pathways Behavioral Services
2024
Summary Biochar ( BC ) amendment to soils is a proposed strategy improve soil fertility and mitigate climate change. However, before this can become recommended management practice, better understanding of the impacts on biota needed. We determined effect addition rates (0, 1, 5, 10 20% by mass) fast‐pyrolysis wood‐derived extraction efficiency EE ), abundance temporal dynamics phospholipid fatty acids PLFAs , microbial community biomarkers) in four temperate during 1‐year incubation....
Previous research on the protection of soil organic C from decomposition suggests that texture affects stocks. However, different pools matter (SOM) might be differently related to texture. Our objective was examine how differentially alters distribution within physically and chemically defined unprotected protected SOM. We collected samples two gradients where other variables influencing content were held constant. One gradient (16–60% clay) located near Stewart Valley, Saskatchewan, Canada...
The soil C saturation concept suggests a limit to whole organic carbon (SOC) accumulation determined by inherent physicochemical characteristics of four pools: unprotected, physically protected, chemically and biochemically protected. Previous attempts quantify sequestration capacity have focused primarily on silt clay protection largely ignored the effects structural biochemical protection. We assessed two contrasting models SOC accumulation, one with no (i.e., linear first‐order model) an...
Abstract Char is a product of thermochemical conversion biomass via pyrolysis, together with gas (syngas), liquid (bio‐oil), and heat. Fast pyrolysis promising process for bio‐oil generation, which leaves 10–30% the original as char. produced soil application, defined biochar ( BC ), it may increase C storage, reduce emissions greenhouse gases GHG such N 2 O CH 4 –potentially making fast bioenergy generation C‐negative system. However, differences in production conditions (e.g., feedstock,...
purpose. Amblyopia is the commonest visual disorder of childhood. Yet contributions two principal treatments (spectacle wear and occlusion) to outcome are unknown. This study was undertaken investigate dose-response relationship amblyopia therapy. methods. The comprised three distinct phases: baseline, in which repeat measures function were confirm initial deficit; refractive adaptation: an 18-week period spectacle with six weekly measurements logarithm minimum angle resolution (logMAR)...
To describe the visual response to spectacle correction ("refractive adaptation") for children with unilateral amblyopia as a function of age, type amblyopia, and category refractive error.Measurement corrected amblyopic fellow eye logMAR acuity in newly diagnosed children. Measurements repeated at 6 weekly intervals total 18 weeks.Data were collected from 65 mean (SD) age 5.1 (1.4) years previously untreated significant error. Amblyopia was associated anisometropia (5.5 years), strabismus...
<b>Objectives</b> To compare visual outcome in response to two prescribed rates of occlusion (six hours a day and 12 day). <b>Design</b> Unmasked randomised trial. <b>Setting</b> Research clinics London hospitals. <b>Participants</b> 97 children with confirmed diagnosis amblyopia associated strabismus, anisometropia, or both. <b>Interventions</b>: 18 week period wearing glasses (refractive adaptation) followed by (“patching”) for six day. <b>Main measures</b> Visual acuity measured logMAR...
Explore compliance with occlusion treatment of amblyopia in the Monitored and Randomized Occlusion Treatment Amblyopia Studies (MOTAS ROTAS), using objective monitoring.Both studies had a three-phase protocol: initial assessment, refractive adaptation, occlusion. In phase, participants were instructed to dose for 6 hours/day (MOTAS) or randomized 12 hour/day (ROTAS). Dose was monitored continuously an monitor (ODM).One hundred fifty-two patients (71 male, 81 female; 122 Caucasian, 30...
Biochar (BC) application to agricultural soils could potentially sequester recalcitrant C, increase N retention, water holding capacity, and decrease greenhouse gas (GHG) emissions. addition can alter soil cycling in some cases extractable mineral (NO 3 − NH 4 + ) 2 O These benefits are not uniformly observed across varying types, fertilization, BC properties. To determine the effects of on retention GHG flux, we added two sizes (>250 <250 µm) oak‐derived (10% w/w) (aridic Argiustoll...
Abstract Biochars can improve soil health but have been widely shown to reduce plant-available nitrogen (N) owing their high carbon (C) content, which stimulates microbial N-immobilization. However, because biochars contain large amounts of C that are not microbially available, total elemental C:N ratio does correspond well with impacts on N. We hypothesized N would relate biochar mineralizable-C (C min ) and ratios the mineralizable component could provide a means for predicting conditions...
To identify factors that influence the outcome of treatment for unilateral amblyopia, as a part Monitored Occlusion Treatment Amblyopia Study (MOTAS).This was an intervention study consisting three nonoverlapping phases: "Baseline", "refractive adaptation" (18 weeks full-time spectacle wear), and "occlusion" (6 hours patching per day, objectively monitored). Condition factors: type age participant, initial severity fixation, binocular vision status; refractive adaptation occlusion (total...
Although the potential for increased temperature is primary and best‐studied aspect of anthropogenic climate change, altered rainfall patterns, storm intensity, more severe droughts are also predicted in most climate‐change scenarios. We experimentally regime a native tallgrass prairie northeastern Kansas assessed leaf‐level physiological activity plant growth responses C3 C4 species. Our objective was to contrast importance reductions quantity (30% smaller rain events, no change pattern)...
In semiarid agroecosystems of the Ebro valley (NE Spain) soils are characterized by low soil organic matter (SOM) and a weak structure. this study we investigated individual combined effect tillage system (no‐tillage, NT; reduced tillage, RT; conventional CT) cropping (barley–fallow rotation at Peñaflor site, PN‐BF continuous barley PN‐BB) on carbon (SOC) storage as well physical protection SOM fractions aggregates in three long‐term experimental sites. both systems, total SOC content was...
Residue lignin content and biochemistry are important properties influencing residue decomposition dynamics native soil C loss through priming. The relative contribution of high residues to organic matter (SOM) may be less than previously believed, more sensitive N status, increased temperature. We examined the role biochemistry, temperature, on five crop varying in composition (corn, sorghum, soybean, sunflower wheat). used natural abundance δ13CO2 quantify priming from a cropped...