Results 191 to 200 of about 18,533 (296)

Nitrogen Policy for Sustainable Agriculture in the US: Estimating Socially Optimal Application Rates and Economic Impacts

open access: yesSustainable Development, EarlyView.
ABSTRACT Nitrogen (N) application creates negative externalities via nitrate (NO3−) leaching that threatens human health and the emission of nitrous oxide (N2O), a potent greenhouse gas. This study determines socially optimal nitrogen application rates (SONR) for corn and wheat by considering the social costs of both pollutants. The assessment includes
Riza Radmehr, B. Wade Brorsen
wiley   +1 more source

Funding, Facilities, and the Face of Homelessness: Heterogeneous Impacts of Federal Grants on Sheltered and Unsheltered Counts

open access: yesSouthern Economic Journal, EarlyView.
ABSTRACT This paper examines the causal impact of federal homeless‐assistance grants on reported homelessness and shelter capacity across 370 Continuums of Care in 2019. We exploit cross‐sectional variation in pre‐1940 housing shares, used in Community Development Block Grant formula allocations, as an instrument for combined CoC and Emergency ...
Luke Maddock, Anita Alves Pena
wiley   +1 more source

Runoff Simulation Model and Unit Area Surface Design Peak Runoff Coefficients

open access: yesTransactions of The Japanese Society of Irrigation, Drainage and Reclamation Engineering, 1987
SENGE, Masateru   +2 more
openaire   +1 more source

Improving String Matching through Enhanced Hashing

open access: yesSoftware: Practice and Experience, EarlyView.
ABSTRACT Background Hashing offers opportunities to tune string matching algorithms while enabling efficient data retrieval and pattern detection. Many of the best algorithms apply hashing. Objective We try to develop faster online algorithms for exact string matching.
Francesco Pio Marino, Jorma Tarhio
wiley   +1 more source

Experimental and design‐oriented research on fiber reinforced concrete segmental tunnel linings: A systematic review

open access: yesStructural Concrete, EarlyView.
Abstract The use of fiber reinforced concrete (FRC) in precast tunnel segments is among the most established and representative applications of this material. Over the past two decades, numerous tunnel linings were constructed with partial or total substitution of conventional steel reinforcement by fibers, this yielding to quantifiable benefits in ...
Vladimir Rusanov   +4 more
wiley   +1 more source

Assessment of Oxidative Stress, Vitellogenin, and Human Health Risks Derived From Nile Tilapia Exposed to Metals and Metalloids in Southeastern Brazil

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Urban coastal lagoons are highly vulnerable ecosystems increasingly affected by metal contamination, as well as multiple anthropogenic stressors. This study evaluated ecotoxicological and human health risks associated with chronic metal exposure in Nile tilapia (Oreochromis niloticus) from an anthropogenically impacted lagoon in southeastern ...
Julia Araújo Alves   +8 more
wiley   +1 more source

Home - About - Disclaimer - Privacy