A5107537396- Soil and Water Nutrient Dynamics
- Soil Carbon and Nitrogen Dynamics
- Phosphorus and nutrient management
- Hydrology and Watershed Management Studies
- Pesticide Exposure and Toxicity
- Peatlands and Wetlands Ecology
- Soil erosion and sediment transport
- Cocoa and Sweet Potato Agronomy
- Coastal wetland ecosystem dynamics
- Soil and Unsaturated Flow
- Clay minerals and soil interactions
- Pesticide Residue Analysis and Safety
- Mine drainage and remediation techniques
- Pesticide and Herbicide Environmental Studies
- Cardiac Arrest and Resuscitation
- Adsorption and biosorption for pollutant removal
- Conservation, Biodiversity, and Resource Management
- Flood Risk Assessment and Management
- Oil Palm Production and Sustainability
- Insect and Pesticide Research
- Groundwater and Isotope Geochemistry
- Electrochemical sensors and biosensors
- Composting and Vermicomposting Techniques
- Ruminant Nutrition and Digestive Physiology
- Opioid Use Disorder Treatment
University of Reading
2009-2024
University of Vermont
2023
Purdue University West Lafayette
2023
University of California System
2023
Colorado School of Mines
2022-2023
National Institute of Standards
2022
National Institute of Standards and Technology
2022
Denver Health Medical Center
2012-2019
Health and Hospital Corporation
2014-2019
Denver Public Health
2019
MEICAL JOURAL DiscussionThe results show that enavid in the recommended contraceptive dosage of 5 mg. a day might produce definite changes blood-coagulation system direction "hypercoagulability."The number women treated is small, but change coagulabilit marked and uniform.TREATED I Enavid 64 Cephatintime 2.
Soils that receive large applications of animal wastes and sewage sludge are vulnerable to releasing environmentally significant concentrations dissolved P available subsurface flow owing the gradual saturation soil's sorption capacity. This study evaluated (calculated from Langmuir isotherms) availability (as CaCl2-P resin P) in soils incubated for 20 d with poultry litter, manure, cattle slurry, municipal sludge, or KH2PO4, added on a P-equivalent basis (100 mg kg(-1)). All sources had...
Grazing systems represent a substantial percentage of the global anthropogenic flux nitrous oxide (N2O) as result nitrogen addition to soil. The pool available carbon that is added soil from livestock excreta also provides substrate for production dioxide (CO2) and methane (CH4) by microorganisms. A study into emission CO2, CH4 N2O cattle urine amended pasture was carried out on Somerset Levels Moors, UK over three-month period. Urine-amended plots (50 g N m−2) were compared control which...
SUMMARY A carbonate‐substituted phosphate rock (Gafsa, GPR) was allowed to dissolve in the presence of one or more following: an acid pH buffer (a source protons), hydrous ferric oxide gel (Fe gel, a sink for P), and cation exchange membrane (CEM, calcium). This quantitative evaluation individual combined influences three most important soil‐related factors (pH, P sink, Ca sink) which control (PR) dissolution soils. At 44 d, alone (pH 6.1 compared 4.5) had little effect on extent (1.5 6.0%...
Strategies are needed to increase the sustainability of phosphorus (P) fertiliser management in agriculture. This paper reports on potential pyrolysis treatment recycle P from renewable materials previously regarded as wastes. The study used K-edge X-ray absorption near-edge structure (XANES) spectroscopy examine chemical forms waste feedstock and corresponding biochars (pyrolysis at 480-500 °C) four ligno-cellulosic, plant-based residues five relatively P-rich livestock water-treatment...
Samples of brain tissues, liver, and adipose tissue were collected during 11 routine autopsies in Holland, samples tissues a further 18 autopsies. Analysis these showed that the mean concentrations HEOD were: white matter brain, 0.0061 ppm; grey 0.0047 0.03 tissue, 0.17 ppm. The corresponding total equivalent DDT 0.023 0.020 0.11 1.75 ppm, respectively. In addition average residues 0.10 ppm lindane 0.0085 heptachlor epoxide found tissue. concentration dieldrin (HEOD) was significantly...
Timely, precise, and localized surveillance of nonfatal events is needed to improve response prevention opioid-related problems in an evolving opioid crisis the United States. Records naloxone administration found prehospital emergency medical services (EMS) data have helped estimate overdose incidence, including nonhospital, field-treated cases. However, as often used by EMS personnel unconsciousness unknown cause, attributing misuse heroin use (OM) may misclassify events. Better methods...
The organic P (Po) status of wetland soils has a large influence on the internal cycling, and therefore biological productivity water quality, ecosystems. Chemical extraction solution-state 31P-nuclear magnetic resonance (NMR) spectroscopy were used to identify quantify distribution major forms in three created sites-Apopka Marsh, Eustis Muck Farm, Sunny Hill Farm (SHF). Spectra obtained 0.25 M NaOH-0.05 EDTA extracts with without previous chemical removal labile soil P. 31P-NMR spectral...
Abstract Poultry production generates large amounts of litter or manure, which can be a valuable source P for crops. However, application rates are usually based on data mineral fertilizer recommendations. In order to determine if this is agronomically and environmentally sound, the availability, fractions, sorptivity from poultry KH 2 PO 4 were determined in six Oklahoma soils following incubation up 28 d. An average 50% more ‐treated (78 mg kg −1 ) than leachate‐treated (52 was...