Results 111 to 120 of about 128,243 (298)

Water Quality Trends across Select 319 Monitoring Sites in Northwest Arkansas [PDF]

open access: yes, 2012
Northwest Arkansas contains two 319 priority watersheds that the Arkansas Natural Resources Commission has identified as being impacted by point source and nonpoint source pollution (i.e., phosphorus, nitrogen, and sediment).
Bailey, Bryan W.   +2 more
core   +2 more sources

Snapshots of Motion: A Novel Structural Intermediate Reveals Conserved Dynamics in Archaeal DNA Ligases

open access: yesProteins: Structure, Function, and Bioinformatics, EarlyView.
ABSTRACT We present the first x‐ray crystallographic structural evidence of an archaeal DNA ligase showing the AMP covalent adduct together with further cofactor hydrolysis, capturing a transient intermediary in the first step of the ligation reaction, triggered by the pyrophosphate hydrolysis.
A. X. Quintana‐Armas   +3 more
wiley   +1 more source

Study on the regularity of rainfall infiltration and deformation in ground fissure zones of loess in Xi’an City under the background of rising groundwater level

open access: yesZhongguo dizhi zaihai yu fangzhi xuebao
This study aims to investigate the deformation patterns of loess ground fissure sites in Xi’an under the combined effects of rising groundwater levels and rainwater infiltration.
Zhanghui ZHAI   +7 more
doaj   +1 more source

Volcanic ash beds in the Waikato district [PDF]

open access: yes, 1967
This report lies somewhere between the "pathfinder" variety and the completed account for the reason that the results of detailed mapping and identification are still being prepared for publication. For the younger beds less than 36,000 years we now know
Pullar, W.A.
core   +1 more source

A minimal physiologically‐based pharmacokinetic modeling platform to predict intratumor exposure and receptor occupancy of an anti‐LAG‐3 monoclonal antibody

open access: yesCPT: Pharmacometrics &Systems Pharmacology, Volume 14, Issue 3, Page 460-473, March 2025.
Abstract In oncology drug development, measuring drug concentrations at the tumor site and at the targeted receptor remains an ongoing challenge. Positron emission tomography (PET)‐imaging is a promising noninvasive method to quantify intratumor exposure of a radiolabeled drug (biodistribution data) and target saturation by treatment doses in vivo ...
Robin Michelet   +8 more
wiley   +1 more source

Nitrogen loss assessment and environmental consequences in the loess soil of China [PDF]

open access: yes, 2003
Attention is focused on fertilizer nitrogen loss and the environmental consequences in Shaanxi Province in loess region of China, including N losses to the atmosphere via ammonia volatilization, nitrification and denitrification, N losses to groundwater ...
Tong, Yanan
core  

Long‐Term Effects of Low‐Drop Grade Control Structures on Channel Evolution in the Yazoo River Basin

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT Channel incision is a widespread problem, especially in river basins that have an extensive history of channel alterations. Because channel incision causes large ecological and economic consequences, the prevention of continued migration of headcuts, defined as a steep change in stream gradient over a short reach, has been the focus of many ...
Nicky M. Faucheux   +2 more
wiley   +1 more source

The Influence of Freeze–Thaw Processes and the Organic Supplementation on the Structural Parameters of Luvisol

open access: yesAgronomy
From an agronomic perspective, the most important property of soil aggregates is their stability. The stability of the soil structure can vary greatly, even over a short time.
Piotr Gajewski
doaj   +1 more source

Numerical analysis of debonding behavior of FRP sheets bonded to concrete focusing on mortar skin

open access: yesStructural Concrete, EarlyView.
Abstract This paper proposes a novel simple method for finite element analysis (FEA) to simulate the debonding behavior of fiber‐reinforced polymer (FRP) sheets bonded to concrete. This study focuses on the mortar skin of the concrete surface layer, which fails during FRP sheet debonding.
Mitsuhiko Ozaki, Yasuhiko Sato
wiley   +1 more source

Mallard response to experimental human disturbance on sanctuary areas is mediated by hunting

open access: yesWildlife Biology, EarlyView.
Wildlife managers often provide spatial sanctuaries for wildlife to escape both lethal (e.g. hunting) and non‐lethal (e.g. non‐consumptive recreation) human disturbance. However, as societal interest in outdoor recreation continues to climb, many areas face added pressure to allow recreation, yet studies increasingly demonstrate negative effects of ...
Abigail G. Blake‐Bradshaw   +6 more
wiley   +1 more source

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