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Withdrawal - Wiley Online Library

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Last Updated: 19 July 2022

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Modeled streamflow response to scenarios of tundra lake water withdrawal and seasonal climate extremes, Arctic Coastal Plain, Alaska

Watershed hydrological processes are described on the Arctic Coastal Plain in Northern Alaska – permafrost, and ample surfaceu2010water storage. Here, we applied the process—u2010-based, spatially distributed hydrological and thermal Balance Simulation Model to the 30 km2 Crea Creek watershed located on the ACP. The effects of documented seasonal climate extremes and LWW were analyzed on seasonal runoff, including minimum 7 u2010day mean flow, MQ7's return to pre-u2010perturbation conditions, and the duration of streamflow restrictions that prohibits fish passage. MQ7 fell in MQ7 by a larger amount in LWW alone due to the low-u2010rainfall scenarios. The results show that, even under current average climatic conditions, LWW is not affected by same-u2010year snowmelt as currently assumed in land management policies. Considering both climate change and industrial lake water withdrawals would therefore improve land management.

Source link: https://onlinelibrary.wiley.com/doi/10.1029/2022WR032119


Brief Communication: Cerebral cortical activity after withdrawal of life‐sustaining measures in critically ill patients

Establishing when cerebral cortical activity ceases relative to circulatory arrest during the death process will raise hope in donation after the circulatory determination of death is changed. To investigate the temporal correlation between cerebral cortical decline and circulatory arrest, we used continuous electroencephalography and arterial blood pressure monitoring before deciding to withhold life supporting procedures and for 30 minutes following circulatory arrest to investigate the temporal correlation between cerebral cortical arrest cessation and circulatory arrest. A prospective study of cerebral cortical function in imminently dying patients is feasible. Our findings from this small cohort show that cerebral cortical activity does not persist after circulatory arrest.

Source link: https://onlinelibrary.wiley.com/doi/10.1111/ajt.17146


Study on withdrawal period of emamectin benzoate in orally medicated silver carp (Hypophthalmichthys molitrix)

Fish parasites proliferate rapidly in favourable environments, affecting fish health and frequently resulting in high mortality, contributing to high mortality. The purpose of this research was to determine the withdrawal period of EMB in silver carp commercially important fish species in southeast Asia. The depletion of EMB residues in silver carp muscle was assessed for seven days in a row for seven days. On the 0th day of withdrawal, the EMB level in the fish muscle was 13. 0 0. 1 parts per billion. Given the maximum residue level of 100 u03bcg kg/u22121 for fish muscle, the present study's findings support the use of EMB in silver carp under the conditions used. The new report includes important details on the use of EMB as an antiparasiticide in silver carp, as well as the food safety concerns.

Source link: https://onlinelibrary.wiley.com/doi/10.1111/are.15931


The Role of Groundwater Withdrawals on River Regulation: Example From the Columbia River Basin

More than 250 dams on the Columbia River Basin have heavily restricted the Columbia River Basin, but it is heavily dependent on groundwater withdrawals in some sub-u2010basins that are strictly controlled. Neglecting groundwater withdrawals in the basin's hydrologic models could result in inaccurate forecasts of its water budget and potentially misled water management decisions. Using a modified version of the Variable Infiltration Capacity model integrated with a water management component that accounts for groundwater withdrawals, irrigation requirements, and reservoir operation, this report aims to investigate the effects of groundwater pumping in the CRB's spatiotemporal distribution of modeling controlled streamflow in the CRB. With an average decrease of 10 km3/year, the VICu2010GIRR simulations demonstrated that increasing groundwater withdrawals would relieve the strain of irrigation water shortage in the Snake River Basin.

Source link: https://onlinelibrary.wiley.com/doi/10.1029/2020WR028955

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions