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Chemical cues from kingsnakes do not cause inducible defenses in house mice

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Current Zoology 2012年第6期58卷 797-804页

作者： W. Wallace STARKE Ⅲ Michael H. FERKIN Department of Biological Sciences Ellington Hall University of Memphis Memphis TN 38152 USA

Abstract Many rodents exhibit inducible defenses when exposed to chemical cues from mammalian predators. These responses may include delays in sexual maturation, smaller adult body size and decreases in litter size and pup weight. We exposed the hybrid juvenile offspring of field-caught and lab-descended house mice Mus musculus to the chemical cues of mouse-fed or chick-fed kingsnakes, Lampropeltis getula, for 20 days after weaning, to examine the effects of ophidian predator cues on prey development. We hypothesized that these cues would elicit inducible defenses such as alteration of growth rates, and/or the timing of reproductive development in mice. Once mature, the reproductive effort of the mice might also be impacted by producing smaller litter sizes or lighter pups or not reproducing at all. We found no effect of kingsnake cues on any of the measures. These findings support the hypothesis that inducible defenses may have evolved as a strategy to deal with specific predators.

关键词： Inducible defenses House mice Kingsnakes Chemical cues Growth and development

On Proximinality of Convex Sets in Superspaces

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Acta Mathematica Sinica,English Series 2016年第6期32卷 633-642页

作者： Li Xin CHENG Zheng Hua LUO Wen ZHANG Ben Tuo ZHENG School of Mathematical Sciences Xiamen University School of Mathematical Sciences Huaqiao University Department of Mathematical Sciences the University of Memphis

Abstract In this paper, we show that a closed convex subset C of a Banach space is strongly proximinal （proximinal, resp.） in every Banach space isometrically containing it if and only if C is locally （weakly, resp.） compact. As a consequence, it is proved that local compactness of C is also equivalent to that for every Banach space Y isometrically containing it, the metric projection from Y to C is nonempty set-valued and upper semi-continuous.

关键词： Proximinality convex set local compactness Banach space

ON BANACH-STONE TYPE THEOREMS IN UNIFORM MULTIPLICATIVE SUBGROUPS OF C(K )-SPACES

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Acta Mathematica Scientia 2018年第6期38卷 1912-1920页

作者：董云柏林培基郑本拓 Research Center of Nonlinear Science and School of Mathematics and Computer Wuhan Textile University Department of Mathematical Sciences The University of Memphis

In this article, we study the preservation properties of （Silov） boundary of mul-tiplieative subgroups in C（X） spaces for non-surjective norm-preserving multiplieative *** also show a sufficient condition for surj... 详细信息

关键词： Banach-Stone theorem Silov boundary composition operator

FUZZY CLUSTERING ANALYSIS IN WATER QUALITY ASSESSMENT:A CASE STUDY FOR DIANSHAN LAKE,SHANGHAI,CHINA

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Journal of Geographical Sciences 1993年第4期 16-28页

作者： Hsiangte Kung Long-gen Ying Department of Geography and Planning Memphis State University

Water quality assessment has been one of the most important fields in Environmental Impact Assessment(EIA)for federally funded *** 1964,when Horton devised and implemented the first water quality index(WQI),consideration has been placed on the development of index methods:The WQI allows measurement of constituents to be transformed into a common unit *** aggregated measuring score on a WQI scale for overall *** critical issue for most WQI designers is to know how a WQI can be constructed in a simplistic way so that the right information can be extracted from the measurements,and then to illustrate its spatial variation and changes with *** to some reviewersofEIA methods,the weighing technique in the EIA processing has not been solved yet,and more powerful methods other than"judgment"need to be identified and *** paper presents a method of fuzzy clustering analysis of water quality evaluation for Dianshan Lake,Shanghai,*** clustering analysis may be used whenever a composite classification of water quality incorporating multiple parameters *** such a case,fuzzy clustering analysis may be used as a complement or an alternative for comprehensive assessment of water quality.

关键词： water quality assessment fuzzy clustering analysis Dianshan Lake Shanghai

Modeling of Daptomycin Release from Medium-Dose Daptomycin-Xylitol-Loaded PMMA Bone Cements

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Journal of Biomedical Science and Engineering 2014年第6期7卷 351-360页

作者： Ali Salehi Gladius Lewis Ashley Cox Parker Warren O. Haggard Department of Biomedical Engineering The University of Memphis Memphis USA Department of Mechanical Engineering The University of Memphis Memphis USA

Antibiotic-loaded poly (methyl methacrylate) bone cements (ALPBCs) are widely used as an agent to decrease the occurrence of periprosthetic joint infection (PJI). Most often, the antibiotic used in an ALPBC is gentamicin, tobramycin, or vancomycin. In many recent clinical studies, it has been reported that the pathogens that commonly present in PIJ are becoming resistant to these antibiotics. As such, a new generation of antibiotics is emerging, among which is daptomycin. Literature reports with a clinically relevant medium-dose daptomycin-loaded cement show that the daptomycin release rate from cylindrical specimens is low. Incorporation of a poragen, such as dextrose, glycine, or particulate xylitol, into the cement powder has been shown to be an effective way to increase daptomycin release rate. There are, however, no studies on modeling of daptomycin release from specimens of either a daptomycin-loaded cement or a daptomycin-poragen-loaded cement. In the present work, we determine the profiles of daptomycin release from cylindrical medium-dose daptomycin-xylitol-loaded cement specimens, as a function of the particulate xylitol loading. We used these results and relationships that have been shown to model antibiotic release from ALPBC specimens to obtain the best-fit relationship for the present cements. Through this approach, we demonstrated that, regardless of the xylitol loading, the daptomycin release profile is a mixture of initial burst followed by a slow Fickian diffusion.

关键词： Poly (Methyl Methacrylate) Bone Cement Daptomycin Xylitol Elution

A Generalized Principle of Local Reflexivity

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Chinese Science Bulletin 1993年第17期38卷 1417-1418页

作者： T.Barton 俞鑫泰 Department of Mathematics Memphis State University USA Department of Mathematics East China Normal University

We prove Theorem 1. Let E be a finite dimensional subspace of X**, let F be a reflexive subspace of X*, and let ε>0 be given. Then there is a linear operator S: E→X such that ‖S‖‖S-1‖**)=x**（f） for all x**∈E ... 详细信息

关键词： Banach space reflexivity.

应用HPLC同时测定大鼠尿中N,N-二(正丁基)阿霉素-14-戊酸酯及其8种代谢产物(英文)

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中国药理学报 1995年第2期16卷 102-107页

作者：韩国柱 Ramskrishnan SESHADRI Department of Medicinal Chemistry College of Pharmacy The University of Tennessee-Memphis Memphis TN 38163 USA

目的,同时测定大鼠尿中N,N-二(正丁基)阿霉素-14-戊酸酯及其8种代谢产物方法:建立了一种反相高压液相色谱法,大鼠iv 20mg·kg^(-1)原药后,其尿直接进样.梯度洗脱,荧光检测.结果:原药最低检出量2 ng,代谢物1—3 ng.被检物不受尿成分干扰... 详细信息

目的,同时测定大鼠尿中N,N-二(正丁基)阿霉素-14-戊酸酯及其8种代谢产物方法:建立了一种反相高压液相色谱法,大鼠iv 20mg·kg^(-1)原药后,其尿直接进样.梯度洗脱,荧光检测.结果:原药最低检出量2 ng,代谢物1—3 ng.被检物不受尿成分干扰.72 h尿中总葸环荧光信号仅为剂量的4.9％,其中主要为脱酰基以及N-脱丁基代谢物.6种次要代谢物包括苷元以及13—酮基还原性代谢物等,但未检出葡萄糖醛酸结合物.结论:本法简便易行,灵敏度高,特异性强。

关键词：高压液相色谱药代动力学阿霉素戊酸酯正丁基

Case Study of Three Arab American Language Identity： Bilingual, Binational, or Both

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Journal of Literature and Art Studies 2018年第8期8卷 1235-1243页

作者： Adel M. Alharbi The University of memphis Memphis TN USA

Growing applied linguistics research has discussed the upsurge of the usage of Arabic language among Arabic speakers in the United States （Bale, 2010; Sehlaoui, 2008）; language contact and conflict among Arab Americans （AAs）（Rouchdy, 2002）; and how mobility--both virtual and physical--influences their identities （Duff, 2015） This study researches how AAs define their affiliation to the Arabic language in the United States to understand their attitudes on language variety and ethnic diversity, religion and identity, and stereotypes of Arabs. After analyzing interviews, all three AA participants self-selected their identity based on linguistic and physical contexts Thus, the findings suggest further research on AAs should consider cyber identity as a factor for bilingual speakers and compare it with Arabic speakers in their home country

关键词： bilingualism language identity nationalism second language acquisition second language ideology transnationalism

Immune checkpoint molecules:“new”kids on the block of skin photoimmunology

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Genes & Diseases 2021年第1期8卷 1-5页

作者： Wei Wang Zhao-Hui Wu Department of Pathology and Laboratory Medicine University of Tennessee Health Science CenterMemphisTNUSA Center for Cancer Research University of Tennessee Health Science CenterMemphisTNUSA Center for Cancer Research University of Tennessee Health Science CenterMemphisTNUSA Department of Radiation OncologyUSA

Ultraviolet radiation(UVR)is a prominent etiological factor of the pathogenesis of skin diseases such as squamous cell carcinoma and *** exposure to the natural sources of UVR such as sunlight or artificially from tanning lamps has been linked to the increasing incidence of skin cancers in the United *** the skin inflammation,DNA damage and oncogenic mutation caused by UVR,UV exposure also plays a critical role in suppressing local and systemic immune responses which enable premalignant and cancer cells to escape immune surveillance.A variety of mechanisms have been reported to regulate the immune-suppressive effects of *** we discuss the current understanding of how UV modulates the local and systemic immunity,the recent progress in roles of immune checkpoint molecules in UVR-induced immune suppression,and how the crosstalk between the immune cells may shape the immune landscape of the skin upon UVR.

关键词： immunity inflammation Immune