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cALcULATION OF THE cRYSTAL STRUcTURE AND THERMODYNAMIc PROPERTIES OF OXIDES AND MINERALS USING FREE-ENERGY MINIMISATION TEcHNIQUES

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CALCULATION OF THE CRYSTAL STRUCTURE AND THERMODYNAMIC PROPE...

Artificial light at night(ALAN) pollution alters bat lunar chronobiology:insights from broad-scale long-term acoustic monitoring

Sixteenth congress of the International Union of crystallography

作者： stephen c.parker Alison Wall School of chemistry University of BathClaverton DownBathUK

＜正＞The aim of this work is to develop reliable simulation techniques which can predict the structural and physical properties of oxides and minerals at varying minimisation,in which the structural parameters are varied until the configuration with lowest energy is *** important development is that lattice dynamics are employed to calculate the vibrational behaviour and hence the thermodynamic properties including heat capacities and *** studies have shown

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Ecological Processes 2024年第1期13卷 176-187页

作者： Han Li Pauline Allen Saige Boris Samantha Lagrama Jade Lyons christina Mills Pauline Moussi casey Nichols carter Tacosik Mc Kenzie Tsaousis Nyzaya Livingston Wilson John F.Grider Kevin A.parker Matina c.Kalcounis-Rueppell Department of Biology University of Nebraska Omaha Department of Biology University of North Carolina Greensboro colorado Parks and Wild-life parker Ecology LLc Department of Biological Sciences University of Alberta

Background The timing of behavior and habitat use of nocturnal animals can be influenced by the lunar cycle in nature. The prevalence of artificial light at night(ALAN) has been recognized as a source of environmental pol-lution. The interaction between ALAN and the lunar cycle on bat behavior is important for understanding anthro-pogenic effects on bats. We utilized a decade(2012–2022) of acoustic monitoring data collected in North carolina, United States, to investigate the relationship between bat activity, lunar cycle, and light pollution. We examined whether the amount of lunar illumination affected species-specific nightly activity and whether hourly bat activity patterns varied between nights with different moon phases. We further investigated if the relationship between bat activity and the lunar cycle might be altered by light *** We found that seven bat species showed activity variation across nights in relation to the amount of moon illumination when ALAN was absent. In general, bats were less active on full moon nights compared to new moon nights. Light pollution interacted with the bat–lunar relationship in five of the seven species, masking the effect of the lunar cycle. We identified delayed bat activity patterns on nights with a full or waxing moon in seven species, and light pollution altered that pattern in four species. Overall, ALAN was associated with decreased bat activity inde-pendent of lunar cycle *** Our study demonstrated that at a broad spatial scale, ALAN negatively affected many North American temperate bat species and altered their lunar chronobiology. As light pollution is spreading to historically dark areas and habitats, ALAN might couple with other threats, such as the white-nose syndrome or climate change, to cause cascading damage in the environment that depends on ecosystem services such as pest control provided by bats. We argue that further research and conservation actions are needed to mitigate

关键词： Artificial light at night ALAN Bats chiroptera chronobiology Light pollution Lunar cycle Moonlight

Fusion genes in solid tumors: an emerging target for cancer diagnosis and treatment

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chinese Journal of cancer 2013年第11期32卷 594-603页

作者： Brittany c.parker Wei Zhang Department of Pathology Unit 85The University of Texas MD Anderson Cancer CenterHoustonTX 77030USA The University of Texas Graduate School of Biomedical Sciences HoustonTX 77030USA

Studies over the past decades have uncovered fusion genes, a class of oncogenes that provide immense diagnostic and therapeutic advantages because of their tumor-specific expression. Originally associated with hemotologic cancers, fusion genes have recently been discovered in a wide array of solid tumors, including sarcomas, carcinomas, and tumors of the central nervous system. Fusion genes are attractive as both therapeutic targets and diagnostic tools due to their inherent expression in tumor tissue alone. Therefore, the discovery and elucidation of fusion genes in various cancer types may provide more effective therapies in the future for cancer patients.

关键词：融合基因癌症患者治疗性实体瘤肿瘤组织中枢神经系统诊断工具特异性表达

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Dendroclimatic analysis of white pine (Pinus strobus L.)using long-term provenance test sites across eastern North America

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Forest Ecosystems 2018年第3期5卷 221-235页

作者： Sophan chhin Ronald S.Zalesny Jr William c.parker John Brissette Division of Forestry and Natural Resources West Virginia University322 Percival HallPO Box 6125MorgantownWV26506USA USDA Forest Service Northern Research Station5985Highway KRhinelanderWI 54501USA Ontario Forest Research Institute 1235Queen St.ESault Ste.MarieON P6A 2E5Canada USDA Forest Service Northern Research Station271Mast RoadDurhamNH 03824USA

Background: The main objective of this study was to examine the climatic sensitivity of the radial growth response of 13 eastern white pine(Pinus strobus L.) provenances planted at seven test sites throughout the northern part of the species’ native distribution in eastern North ***: The test sites(i.e., Wabeno, Wisconsin, USA; Manistique, Michigan, USA; Pine River, Michigan, USA; Newaygo,Michigan, USA; Turkey Point, Ontario, canada; Ganaraska, Ontario, canada; and Orono, Maine, USA) examined in this study were part of a range-wide white pine provenance trial established in the early 1960 s in the eastern United States and canada. Principal components analysis(PcA) was used to examine the main modes of variation [first(Pc1) and second(Pc2) principal component axes] in the standardized radial growth indices of the provenances at each test *** year scores for Pc1 and Pc2 were examined in relation to an array of test site climate variables using multiple regression analysis to examine the commonality of growth response across all provenances to the climate of each test site. Provenance loadings on Pc1 and Pc2 were correlated with geographic parameters(i.e., latitude, longitude,elevation) and a suite of biophysical parameters associated with provenance origin ***: The amount of variation in radial growth explained by Pc1 and Pc2 ranged from 43.4% to 89.6%. Dendroclimatic models revealed that white pine radial growth responses to climate were complex and differed among sites. The key dendroclimatic relationships observed included sensitivity to high temperature in winter and summer, cold temperature in the spring and fal(i.e., beginning and end of the growing season), summer moisture stress, potential sensitivity to storminduced damage in spring and fal, and both positive and negative effects of higher winter snowfal. Separation of the loadings of provenances on principal component axes was mainly associated with temperature-related bioclima

关键词： Adaptation climate change Dendrochronology Seed source

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Heating, ventilating, and air conditioning analysis and design Faye c. McQuiston, Jerald D. parker, Jeffrey D. Spitler. 5th ed.

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Heating, ventilating, and air conditioning analysis and desi...

Modular next generation fast-neutron detector for portal monitoring

2000年

作者： Faye c. McQuiston Jerald D. parker Jeffrey D. Spitler.

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Nuclear Science and Techniques 2022年第1期33卷 140-148页

作者： E.Aboud S.Ahn G.V.Rogachev V.E.Johnson J.Bishop G.christian E.Koshchiy c.E.parker D.P.Scriven cyclotron Institute Texas A&M UniversityCollege StationTX 77843USA Department of Physics and Astronomy Texas A&M UniversityCollege StationTX 77843USA Department of Statistics Texas A&M UniversityCollege StationTX 77843USA

Nuclear nonproliferation is of critical importance for global *** fissile materials including highly enriched uranium and weapons-grade plutonium are especially important to *** interrogation techniques may result in much better sensitivity but are difficult with conventional portal monitors that rely on detecting thermal ***,most conventional portal monitoring systems rely on ^(3)He,which has a finite and continually decreasing *** designing a highly segmented array of organic scintillators,we posit that we can accurately and quickly identify fissile materials,including weapons-grade plutonium and highly enriched uranium,being *** propose a new design for a fast-neutron detector that overcomes the limitations of the current generation of portal ***6 simulations have been performed in conjunction with the UMPBT statistical model to determine the sensitivity limitations of the proposed *** suggest that the proposed detector may be 10 times more efficient than current-generation thermal neutron detectors and may be able to positively identify a 81 mg 235U source in as little as 192 seconds utilizing active interrogation techniques.

关键词： Fast-neutron detection Portal monitoring Nonproliferation

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There is no real evidence for a diminishing trend of the Atlantic meridional overturning circulation

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Journal of Ocean Engineering and Science 2016年第1期1卷 30-35页

作者： A.parker c.D.Ollier School of Engineering and Physical Science James Cook UniversityTownsvilleQLDAustralia School of Earth and Environment University of Western AustraliaCrawley WAAustralia

The Atlantic Meridional Overturning circulation(AMOc)is part of the great ocean“conveyor belt”that circulates heat around the *** the early 2000s,ocean sensors have started to monitor the AMOc,but the measurements are still far from accurate and the time window does not permit the separation of short term variability from a longer term *** works have claimed that global warming is slowing down the AMOc,based on models and proxies of *** other observations demonstrate a stable circulation of the *** using tide gauge data complementing recent satellite and ocean sensor observations,the stability of the AMOc is shown to go back to *** is concluded that no available information has the due accuracy and time coverage to show a clear trend outside the inter-annual and multi-decadal variability in the direction of increasing or decreasing strength over the last decades.

关键词： Ocean circulation conveyor belt Global warming climate change.

Effects of environmental stressors on stem cells

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World Journal of Stem cells 2019年第9期11卷 565-577页

作者： Jessica R Worley Graham c.parker Department of Pediatrics Wayne State University School of Medicine

Environmental toxicants are ubiquitous,and many are known to cause harmful health ***,much of what we know or think we know concerning the targets and long-term effects of exposure to environmental stressors is sadly *** exposure may have health effects that are currently mischaracterized or at least mechanistically incompletely *** much of the recent excitement about stem cells(Scs)focuses on their potential as therapeutic agents,they also offer a valuable resource to give us insight into the mechanisms and risks of toxicant *** only as a response to the increasing ethical pressure to reduce animal testing,Sc studies allow us valuable insight into the true effects of human exposure to environmental stressors under controlled *** present a review of the history of publications on the effects of environmental stressors on Scs,followed by a consolidation of the literature over the past five years on a subset of key environmental stressors of importance to human health and their effects on both embryonic and tissue *** review will make constructive suggestions as to areas of toxicant research where further studies are needed,as well as making indications of the potential utility for advancing knowledge and directing research on environmental toxicology.

关键词： Environmental substances Toxic Stem cells Endocrine disruptors Alcohols Tobacco smoking Metals Heavy Particulate matter Volatile organic compounds Ozone

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用非常规化学药剂防除杂草

世界农药 1985年第2期 14-18+27页

作者： c.parker 阮朗英国农业研究委员会杂草研究组织

虽然现在常规合成除草剂范围愈来愈广泛,然而杂草问题仍继续变化并面临新的挑战。对付这些问题的新除草剂开发得很慢,部份原因是毒性试验问题,为此需要评价一些新的替代途径。本文在"非常规"药剂名单中着重讨论熏蒸剂(源于合成但作用方... 详细信息

虽然现在常规合成除草剂范围愈来愈广泛,然而杂草问题仍继续变化并面临新的挑战。对付这些问题的新除草剂开发得很慢,部份原因是毒性试验问题,为此需要评价一些新的替代途径。本文在"非常规"药剂名单中着重讨论熏蒸剂(源于合成但作用方式不同)、天然毒素(常规应用而来源不同)、生长调节剂(单独作用或用以提高除草剂药效)和除草剂安全剂(改进常规除草剂的选择性)。

关键词：除草剂安全剂杂草种子防除杂草真菌除草剂野燕麦燕麦草硫威钠异株克生非常规