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Influence of free water availability on a desert carnivore and herbivore

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Current Zoology 2017年第2期63卷 121-129页

作者： Bryan M. KLUEVER Eric M. GESE Steven j. dempsey Department of Wildland Resources Utah State University Logan UT 84322-5230 USA United States Department of Agriculture Animal and Plant Health Inspection Service Wildlife Services National Wildlife Research Center Department of Wildland Resources Utah State University Logan UT 84322-5230 USA

Anthropogenic manipulation of finite resources on the landscape to benefit individual species or communities is commonly employed by conservation and management agencies. One such action in arid regions is the construction and maintenance of water developments （i.e., wildlife guzzlers） adding free water on the landscape to buttress local populations, influence animal movements, or af- fect distributions of certain species of interest. Despite their prevalence, the utility of wildlife guzzlers remains largely untested. We employed a before-after control-impact （BACI） design over a 4-year period on the US Army Dugway Proving Ground, Utah, USA, to determine whether water avaijability at wildlife guzzlers influenced relative abundance of black-tailed jackrabbits Lepus californicus and relative use of areas near that resource by coyotes Canis latrans, and whether coyote visitations to guzzlers would decrease following elimination of water. Eliminating water availability at guzzlers did not influence jackrabbit relative abundance. Coyote relative use was impacted by water availability, with elimination of water reducing use in areas associated with our treatment, but not with areas associated with our control. Visitations of radio-collared coyotes to guzzlers declined nearly 3-fold following elimination of water. Our study provides the first evidence of a potential direct effect of water sources on a mammalian carnivore in an arid environment, but the ecological relevance of our finding is debatable. Future investigations aimed at determining water effects on terrestrial mam- mals could expand on our findings by incorporating manipulations of water availability, obtaining absolute estimates of population parameters and vital rates and incorporating fine-scale spatiotem- poral data.

关键词： arid black-tailed jackrabbit Canis latrans coyote Lepus cafifornicus.

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苎麻施肥

湖北农业科学 1982年第6期 40-36页

作者： j.M.dempsey ,杨曾盛

多数学者认为苎麻是耗地作物,需施大量肥料,才能获得高产。按照Bally(1957)的意见,苎麻消耗土壤中大量养分,必须加以补充。把苎麻残渣留在田里,是维持正常生长所必要的。由于其生产地的土壤和气候条件差异很大,也不可能对施肥的适当比... 详细信息

多数学者认为苎麻是耗地作物,需施大量肥料,才能获得高产。按照Bally(1957)的意见,苎麻消耗土壤中大量养分,必须加以补充。把苎麻残渣留在田里,是维持正常生长所必要的。由于其生产地的土壤和气候条件差异很大,也不可能对施肥的适当比例提出特殊的规律。

关键词：苎麻白麻麻类作物剥麻机剥皮机养分吸收营养吸收

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钙的置换引起石榴石结构变化的证据

地球与环境 1981年第6期 44-45页

作者： M.j.dempsey ,郭九皋

过去有关石榴石结构的工作都集中在不同的固溶体系列的端元组份,特别是镁铝榴石(Mg3Al2Si3O12)和钙铝榴石(Ca3Al2Si3O12)上,而对具有过渡组成的石榴石结构所做的工作甚少。Novak和Gibbs（1971）研究了多种石榴石,但是他们的大多数样品... 详细信息

过去有关石榴石结构的工作都集中在不同的固溶体系列的端元组份,特别是镁铝榴石(Mg3Al2Si3O12)和钙铝榴石(Ca3Al2Si3O12)上,而对具有过渡组成的石榴石结构所做的工作甚少。Novak和Gibbs（1971）研究了多种石榴石,但是他们的大多数样品都含有两种以上的二价阳离子,这就不可能推导出任何有关单个固溶体系列的有用的结果。首次对一个完全的固溶体系列进行观察的尝试是由Newton等（1977）进行的。他们考察了镁铝榴石-钙铝榴石固溶体系列的合成石榴石的热力学,这就需要测定作为组成函数的晶胞边长。这个工作产生的

关键词：石榴石固溶体 Ca 石榴子石宝石超额体积晶架群空间群

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单发骨病变的经皮针刺活组织检查

锦州医学院学报 1980年第4期 71-72页

作者： Legge D Ennis jT dempsey j 刘景勃么中玉

用简易的18号切口针对12例患单发骨病变的病人进行了针刺活检。12例中8例获得了充足可靠的诊断材料,因而避免了外科手术探检。所以,骨的经皮针刺活检被认为是对单发骨病变进行检查处理的安全而简单易行的方法。许多骨疾患、特别是广泛... 详细信息

用简易的18号切口针对12例患单发骨病变的病人进行了针刺活检。12例中8例获得了充足可靠的诊断材料,因而避免了外科手术探检。所以,骨的经皮针刺活检被认为是对单发骨病变进行检查处理的安全而简单易行的方法。许多骨疾患、特别是广泛转移性骨疾患、在获得可靠的诊断上是有它的特征性X线表现的。然而单发的或非典型的骨损害则可由多种疾病引起,对其有效的诊断则需活检,如果病变累及椎体,则常常需要外科手术。而经皮针刺活检则是其中可选译的一种

关键词：骨病变病人腰椎体经皮

Lack of <i>Rbl</i>1/p107 Effects on Cell Proliferation and Maturation in the Inner Ear

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journal of Behavioral and Brain Science 2013年第7期3卷 534-555页

作者： Sonia M. Rocha-Sanchez Laura R. Scheetz Sabrina Siddiqi Michael W. Weston Lynette M. Smith Kate dempsey Hesham Ali joAnn McGee Edward j. Walsh College of Information Science and Technology University of Nebraska at Omaha Omaha USA College of Public Health University of Nebraska Medical Center Omaha USA Department of Oral Biology Creighton University School of Dentistry Omaha USA Developmental Auditory Physiology Laboratory Boys Town National Research Hospital Omaha USA

Loss of postnatal mammalian auditory hair cells (HCs) is irreversible. Earlier studies have highlighted the importance of the Retinoblastoma family of proteins (pRBs) (i.e., Rb1, Rbl1/p107, and Rbl2/p130) in the auditory cells’ proliferation and emphasized our lack of information on their specific roles in the auditory system. We have previously demonstrated that lack of Rbl2/p130 moderately affects HCs’ and supporting cells’ (SCs) proliferation. Here, we present evidence supporting multiple roles for Rbl1/p107 inthe developing and mature mouse organ of Corti (OC). Like other pRBs, Rbl1/p107 is expressed in the OC, particularly in the Hensen’s and Deiters’ cells. Moreover, Rbl1/p107 impacts maturation and postmitotic quiescence of HCs and SCs, as evidenced by enhanced numbers of these cells and the presence of dividing cells in the postnatal Rbl1/p107-/-OC. These findings were further supported by microarray and bioinformatics analyses, suggesting downregulation of several bHLH molecules, as well as activation of the Notch/Hes/Hey signaling pathway in homozygous Rbl1/p107 mutant mice. Physiological assessments and detection of ectopic HC marker expression in postnatal spiral ganglion neurons (SGNs) provided evidence for incomplete cell maturation and differentiation in Rbl1/p107﹣/﹣OC. Collectively, the present study highlights an important role for Rbl1/p107 inOC cell differentiation and maturation, which is distinct from other pRBs.

关键词： Rbl1/p107 Inner Ear Proliferation Differentiation Hair Cells Supporting Cells

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优良的纺织纤维作物—苎麻

麻纺织技术 1983年第3期 48-52页

作者： j.M.dempsey 谢卓荣郭清泉刘飞虎

适应性苎麻的适应性很广,从赤道的印度尼西亚和赤道附近的菲律宾(从南纬6°到9°)到北纬38°左右的日本和南朝鲜都能生长。苎麻在苏联北纬45°的地方曾经栽培过。较高纬度地区的苎麻栽培取决于温度,苎麻地下茎一般分布在距表土6

关键词：中国台湾省温带自然带亚洲印度尼西亚美国佛罗里达州原麻剥皮机剥麻机

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现代艺术

Multi-octave-spanning supercontinuum generation through high-energy laser filaments in YAG and ZnSe pumped by a 2.4 μm femtosecond Cr:ZnSe laser

作者： (美)埃米·登普西(Amy dempsey)

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High Power Laser Science and Engineering 2021年第1期9卷 109-117页

作者： Sang-Hoon Nam Garima CNagar Dennis dempsey Ondrej Novák Bonggu Shim Kyung-Han Hong Research Laboratory of Electronics Massachusetts Institute of Technology(MIT)CambridgeMA 02139USA Department of Physics Applied Physics and AstronomyBinghamton UniversityState University of New YorkBinghamtonNY 13902USA HiLASE Centre Institute of Physics of the Czech Academy of Sciences25241 DolníBrežanyCzech Republic Presently with MIT Lincoln Laboratory LexingtonMA 02420USA

We present experimental and numerical investigations of high-energy mid-infrared filamentation with multi-octavespanning supercontinuum generation(SCG), pumped by a 2.4 μm, 250 fs Cr:ZnSe chirped-pulse laser *** SCG is demonstrated in both anomalous and normal dispersion regimes with YAG and polycrystalline ZnSe,respectively. The formation of stable and robust single filaments along with the visible-to-mid-infrared SCG is obtained with a pump energy of up to 100 μj in a 6-mm-long YAG medium. To the best of the authors’ knowledge, this is the highest-energy multi-octave-spanning SCG from a laser filament in a solid. On the other hand, the SCG and evenharmonic generation based on random quasi-phase matching(RQPM) are simultaneously observed from the single filaments in a 6-mm-long polycrystalline ZnSe medium with a pump energy of up to 15 μj. The numerical simulations based on unidirectional pulse propagation equation and RQPM show excellent agreement with the measured multioctave-spanning SCG and even-harmonic generation. They also reveal the temporal structure of mid-infrared filaments,such as soliton-like self-compression in YAG and pulse broadening in ZnSe.

关键词： laser filamentation mid-infrared laser nonlinear optics ultrafast optics

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Blood：借助细胞外囊泡诊断儿童白血病潜力大

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现代生物医学进展 2017年第2期17卷 I0001-I0001页

作者： Suzanne M. johnson Clare dempsey Amy Chadwick Stephanie Harrison jizhong Liu Yujun Di Owen j. McGinn Marco Fiorillo Federica Sotgia Michael P. Lisanti Mayur Parihar Shekhar Krishnan Vaskar Saha Children’s Cancer Group and Children’s Cancer Group and Manchester Centre for Cellular Metabolism Institute of Cancer Sciences Manchester Academic Health Sciences Centre University of Manchester Manchester United Kingdom Children’s Cancer Group and Children’s Cancer Group and Children’s Cancer Group and Children’s Cancer Group and Manchester Centre for Cellular Metabolism Institute of Cancer Sciences Manchester Academic Health Sciences Centre University of Manchester Manchester United Kingdom Manchester Centre for Cellular Metabolism Institute of Cancer Sciences Manchester Academic Health Sciences Centre University of Manchester Manchester United Kingdom Manchester Centre for Cellular Metabolism Institute of Cancer Sciences Manchester Academic Health Sciences Centre University of Manchester Manchester United Kingdom Tata Medical Center Kolkata India and Tata Translational Cancer Research Centre Kolkata India Children’s Cancer Group and Tata Translational Cancer Research Centre Kolkata India

曼彻斯特大学的研究人员最近开发了一种新的白血病诊断检测方法，该方法的出现或将使得医生对一种常见的儿童白血病的诊断发生革命性变化。研究人员表示急性淋巴细胞白血病细胞能够产生和释放一种特殊的细胞外结构，可以在血液中进行追... 详细信息

曼彻斯特大学的研究人员最近开发了一种新的白血病诊断检测方法，该方法的出现或将使得医生对一种常见的儿童白血病的诊断发生革命性变化。研究人员表示急性淋巴细胞白血病细胞能够产生和释放一种特殊的细胞外结构，可以在血液中进行追踪。该发现或对这种儿童白血病的诊断，药物输送和治疗有重要启示。相关研究结果发表在国际学术期刊Blood上。

关键词：白血病细胞诊断检测细胞外儿童囊泡曼彻斯特大学国际学术期刊研究人员