3,149 research outputs found

    How to Collect your Water Sample and Interpret the Results for the Poultry Analytical Package

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    Rapidly growing birds may consume up to twice as much water as feed (Scantling and Watkins 2013), which means a plentiful supply of clean water is crucial for poultry health and productivity. To determine the quality of your poultry’s water resources, periodic sampling and analysis is needed. Analyzing water supplies can also be a crucial tool in identifying existing or potential challenges. The Arkansas Water Resources Center (AWRC) in cooperation with the UA Cooperative Extension Service offers several analytical packages to assess the quality of your water resources. This document is intended to provide guidance to poultry producers on collecting water samples for analysis and understanding the “Poultry Water Report Form” provided by the AWRC’s Water Quality Laboratory (Lab). The information contained within this fact sheet should be used as general guidance, and the reader is encouraged to seek advice from Extension specialists regarding the interpretation of individual reports and water testing results that may be of concern

    Damage Resistance of Titanium Aluminide Evaluated

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    As part of the aviation safety goal to reduce the aircraft accident rate, NASA has undertaken studies to develop durable engine component materials. One of these materials, g-TiAl, has superior high-temperature material properties. Its low density provides improved specific strength and creep resistance in comparison to currently used titanium alloys. However, this intermetallic is inherently brittle, and long life durability is a potential problem. Of particular concern is the material s sensitivity to defects, which may form during the manufacturing process or in service. To determine the sensitivity of TiAl to defects, a team consisting of GE Aircraft Engines, Precision Cast Parts, and NASA was formed. The work at the NASA Glenn Research Center at Lewis Field has concentrated on the fatigue response to specimens containing defects. The overall objective of this work is to determine the influence of defects on the high cycle fatigue life of TiAl-simulated low-pressure turbine blades. Two types of defects have been introduced into the specimens: cracking from impact damage and casting porosity. For both types of defects, the cast-to-size fatigue specimens were fatigue tested at 650 C and 100 Hz until failure

    The Ursinus Weekly, March 9, 1964

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    Junior Prom and Agency concert highlight coming weekend • Curtain Club chooses cast; Meridy Murphy will direct Remarkable Mr. Pennypacker • Kaffee Klatsch topic politics • Sig Nu and ZX win Songfest • Photo contest • Wedgwood, controversial historian, author, here Wednesday evening • Campus Chest plans underway • Red Cross seeking qualified swimmers • 1,100 applications filed at UC for Fall admissions • Jean Hunter, Howard Smith elected Ruby co-editors • March placement schedule posted • Ursinus to raise tuition rate $200 effective Sept. 1 • Review: Mr. Lincoln on civil rights • Navy OCS team will visit campus next week • Letters to the editor • Fall of man topic of Bible Study • Genevieve Blatt: Our role in politics • Dateline: Stockholm • Greek gleanings • Modern tri-mesters used in 1880 here • Girls BB falls to ES, 46-36; JV team continues unbeaten • West Chester wins intercollegiates • Mermaids lose in two close meets • Wrestling: Win last match • Hofmann receives sportswriter\u27s award • MAC tournamenthttps://digitalcommons.ursinus.edu/weekly/1267/thumbnail.jp

    Brain-Derived Neurotrophic Factor Val66Met and Blood Glucose: A Synergistic Effect on Memory

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    Age-related declines in episodic memory performance are frequently reported, but their mechanisms remain poorly understood. Although several genetic variants and vascular risk factors have been linked to mnemonic performance in general and age differences therein, it is unknown whether and how they modify age-related memory declines. To address that question, we investigated the effect of Brain-Derived Neurotrophic Factor (BDNF) Val66Met polymorphism that affects secretion of BDNF, and fasting blood glucose level (a vascular risk factor) on episodic memory in a sample of healthy volunteers (age 19–77). We found that advanced age and high-normal blood glucose levels were associated with reduced recognition memory for name-face associations and poorer prose recall. However, elevated blood glucose predicted lower memory scores only in carriers of the BDNF 66Met allele. The effect on associative memory was stronger than on free recall. These findings indicate that even low-level vascular risk can produce negative cognitive effects in genetically susceptible individuals. Alleviation of treatable vascular risks in such persons may have a positive effect on age-related cognitive declines

    Neurocognitive, Social-Behavioral, and Adaptive Functioning in Preschool Children with Mild to Moderate Kidney Disease

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    The negative impact of End Stage Kidney Disease on cognitive function in children is well established, but no studies have examined the neurocognitive, social-behavioral, and adaptive behavior skills of preschool children with mild to moderate chronic kidney disease (CKD)
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