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Nurses： Extending Care through Telehealth

通讯和计算机（中英文版） 2015年第3期12卷 117-122页

作者： maryah, allen Mya, AYLOTT Margarita, LOYOLA Mika, MORIC Lisa, SAFFAREK Island Health Telehealth Victoria BC V8R 118 Canada Island Health Telehealth Nanaimo BC V9S 2B7 Canada

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Approximate ballistics formulas for spherical pellets in free flight

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Defence Technology（防务技术） 2018年第1期14卷 1-11页

作者： E.J.allen Department of Mathematics and Statistics Texas Tech University

The ballistics equations for spherical pellets in free flight are simplified through appropriate scaling of the pellet velocity and pellet distance. Two different drag coefficient curves are averaged to yield a single curve applicable to shot pellets and round balls. The resulting S-shaped drag coefficient curve is approximated by three straight-line segments. The scaled ballistics equations are then solved exactly and simple formulas are found for the velocity and flight time with respect to trajectory distance. The formulas are applicable to spherical shot pellets and round balls of any composition under any atmospheric conditions. The formulas are amenable to quick and easy computation and may also serve as an aid in understanding and comparing black-box ballistics calculators. For shotshell ballistics, an important assumption in the present investigation is that the pellets are moving as single, free spheres and not as a dense cloud or in a shot column, in particular, the pellets are not interacting during flight. Therefore, the formulas are most appropriate for single round balls, for large shot sizes, and for pellets of small shot size fired from open chokes. The formulas are clear and accessible, and can be implemented by military or law enforcement personnel as well as hunters and shooters. This work differs from previous investigations in that accurate ballistics formulas are derived for spherical projectiles of shotguns and muzzleloaders using realistic drag coefficients.

关键词： Ballistics Sphere Drag Shotgun Muzzleloader Nondimensionalization

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Combining innovative science and policy to improve air quality in cities with refining and chemicals manufacturing： The case study of Houston, Texas, USA

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Frontiers of Chemical Science and Engineering 2017年第3期11卷 293-304页

作者： David T. allen University of Texas Austin Department of Chemical Engineering and Center for Energy and Environmental Resources Austin TX 78759 USA

In Houston, a combination of urban emissions from a city of 4 million people, coupled with emissions from extensive petroleum refining and chemical manufacturing, leads to conditions for photochemistry that are unique in the United States, and historically, the city had experienced some of the highest ozone concentrations recorded in the United States. Large air quality field studies （the Texas Air Quality Studies or TexAQS I and II） were conducted to determine root causes of the high ozone concentrations. Hundreds of air quality investigators, from around the world, deployed instruments on aircraft, on ships, and at fixed ground sites to make extensive air quality measurements; detailed photochemical modeling was used to interpret and assess the implications of the measurements. The Texas Air Quality Studies revealed that both continuous and episodic emissions of light alkenes, which came to be called highly reactive volatile organic compounds, played a critical role in the formation of ozone and other photochemical oxidants in the region. Under- standing and quantifying the role of these emissions in regional air quality required innovations in characterizing emissions and in photochemical modeling. Reducing emissions required innovative policy approaches. These coupled scientific and policy innovations are described, and the result, substantially cleaner air for Houston, is documented. The lessons learned from the Houston air quality experience are relevant to cities with similar population and industrial profiles around the world.

关键词： ozone air quality highly reactive volatile organic compounds Houston

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MBA:A market-based approach to data allocation and dynamic migration for cloud database

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Science China(Information Sciences) 2012年第9期55卷 1935-1948页

作者： HUANG allen Microsoft SQL China R&D Center

With the coming shift to cloud computing,cloud database is emerging to provide database service over the *** the cloud-based environment,data are distributed at Internet scale and the system needs to handle a huge number of user queries simultaneously without *** data are distributed among the servers has a crucial impact on the query load distribution and the system response *** this paper,we propose a market-based control method,called MBA,to achieve query load balance via reasonable data *** MBA,database nodes are treated as traders in a market,and certain market rules are used to intelligently decide data allocation and *** built a prototype system and conducted extensive *** results show that the MBA method significantly improves system performance in terms of average query response time and fairness.

关键词： market-based control data distribution load balancing

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Wild dogma： An examination of recent ＂evidence＂ for dingo regulation of invasive mesopredator release in Australia

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Current Zoology 2011年第5期57卷 568-583页

作者： Benjamin L. allen Richard M. ENGEMAN Lee R. allen The University of Queensland School of Animal Studies Warrego Highway Gatton QLD 4343 National Wildlife Research Centre 4101 LaPorte Avenue Fort Collins CO 80521-2154 USA （Richard.M.Engeman@aphis.usda.gov） Biosecurity Queensland Robert Wicks Pest Animal Research Centre Tor Street Toowoomba QLD 4350 （Lee.Allen@deedi.qld.gov.au）

There is growing interest in the role that apex predators play in shaping terrestrial ecosystems and maintaining tro- phic cascades. In line with the mesopredator release hypothesis, Australian dingoes （Canis lupus dingo and hybrids） are assumed by many to regulate the abundance of invasive mesopredators, such as red foxes Vulpes vulpes and feral cats Fells catus, thereby providing indirect benefits to various threatened vertebrates. Several recent papers have claimed to provide evidence for the bio- diversity benefits of dingoes in this way. Nevertheless, in this paper we highlight several critical weaknesses in the methodologi- cal approaches used in many of these reports, including lack of consideration for seasonal and habitat differences in activity, the complication of simple track-based indices by incorporating difficult-to-meet assumptions, and a reduction in sensitivity for as-sessing populations by using binary measures rather than potentially continuous measures. Of the 20 studies reviewed, 15 of them （75%） contained serious methodological flaws, which may partly explain the inconclusive nature of the literature investigating interactions between invasive Australian predators. We therefore assert that most of the ＂growing body of evidence＂ for meso- predator release is merely an inconclusive growing body of literature only. We encourage those interested in studying the eco- logical roles of dingoes relative to invasive mesopredators and native prey species to account for the factors we identify, and cau- tion the value of studies that have not done so [Current Zoology 57 （5）： 568-583, 2011].

关键词： Activity index Apex predator Canis lupus dingo Experimental design Mesopredator release Sampling

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Isolation and Identification of Lactic Acid Bacteria with Probiotic Potential from Fermented Cow Milk (Nono) in Unguwar Rimi Kaduna State Nigeria

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American Journal of Molecular Biology 2017年第2期7卷 99-106页

作者： Philip Anthony Vantsawa Umar Thlama maryah Timothy Bulus Department of Biological Sciences Nigerian Defence Academy Kaduna Nigeria Department of Biochemistry Kaduna State University Kaduna Nigeria

Lactic acid bacteria (LAB) strains from fermented cow milk (nono) sold inUnguwar Rimi, Kaduna markets were isolated on lactic bacteria specific medium (De Man Rogosa Sharpe MRS media). Isolated strains were identified and characterized using morphological, biochemical test and carbohydrate fermentation system (API-50 CHL). Six (6) pure colonies were distinctly obtained and identified as Lactobacillus strains. Out of the 6 isolated Lactobacilli, 5 were further identified as Lactobacillus delbrueckii ssp. lactis 2, Lactobacillus bulgaricus, Lactobacillus salivarius, Lactobacillus acidophilus 2 and Lactobacillus rhamnosus. They were further screened for antimicrobial activity and antibiotic sensitivity. Lactobacillus acidophilus had higher resistance to all but one of the antibiotics used (Chloramphenicol 30 μg) with no zone of inhibition to Ampicillin, Amoxicillin, Gentamycin, Penicillin, Streptomycin and Tetracycline. The antimicrobial activity against Escherichia coli exhibited varying degree of inhibitory activity. It can be concluded that the presence of these microorganisms in fermented cow milk (nono) is of great benefits to humans and animals either as supplements or food production processes.

关键词： Lactobacillus Morphological Antimicrobial Supplements

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Boosting proteolytic pathways as a treatment against glycation-derived damage in the brain?

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Neural Regeneration Research 2022年第2期17卷 320-322页

作者： allen Taylor Eloy Bejarano Laboratory for Nutrition and Vision Research USDA Human Nutrition Research Center on AgingTufts UniversityBostonMAUSA Departments of Chemical and Molecular Biology and Ophthalmology Tufts University School of MedicineBostonMAUSA Friedman School of Nutrition and Science Policy Tufts UniversityBostonMAUSA School of Health Sciences and Veterinary School Universidad Cardenal Herrera-CEUCEU UniversitiesMoncadaValenciaSpain

The worldwide adaptation of a Western lifestyle is associated with the increased consumption of high glycemia diets and an increased prevalence of obesity, metabolic syndrome, and diabetes.

关键词： damage obesity prevalence

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Linking water and nutrients through the vadose zone: a fungal interface between the soil and plant systems

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Journal of Arid Land 2011年第3期3卷 155-163页

作者： Michael F allen Center for Conservation Biology University of California

Plant water availability, use, and management have largely focused on physical processes of infiltration and the role of roots in uptake and transpiration. However, roots and mycorrhizal fungi redistribute water in complex patterns. Here I describe some of our observations and experiments showing that mycorrhizal fungi play key roles in moving water for both transpiration and to facilitate nutrient acquisition under dry conditions. Mycorrhizal fungal hyphae grow from both surface and deep roots even into bedrock to help extract water under dry conditions. In both deep and surface roots, mycorrhizal fungi acquire water from pores too small for roots and root hairs to access, and at distances from roots and root hairs. Mycorrhizal fungi are also able to utilize hydraulic-lifted water from plants to obtain nutrients in extremely dry surface soils. The importance of these root symbionts in water and nutrient dynamics, and as integrators of surface and deeper water dynamics need further investigation.

关键词： mycorrhiza vadose zone hydraulic redistribution drought

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INTERACTION OF A FLOATING ELLIPTIC CYLINDER WITH A VIBRATING CIRCULAR CYLINDER

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Journal of Hydrodynamics 2006年第4期18卷 481-491页

作者： SUN Ren CHWANG allen T. Department of Engineering Mechanics Shanghai Jiaotong University Shanghai 200240 China Department of Mechanical Engineering The University ofHong Kong Hong Kong China

The nonlinear hydrodynamic interaction between a floating elliptic cylinder and a vibrating circular cylinder immersed in an infinite fluid was investigated. By taking the added masses of the two-cylinder system into account, the dynamical equations of motion were formulated from the Lagrange equations of motion. The dynamical behaviors of these two cylinders were analyzed numerically for some typical situations, and the results show that the presence of a vibrating circular cylinder has a significant influence on the planar motion of a floating elliptic cylinder. The hydrodynamic interaction between them results in complicated nonlinear behaviors of the floating cylinder. It is found that oscillatory motion of the elliptic cylinder takes place in response to the vibrating mode of the circular one.

关键词： hydrodynamic interaction two-body interaction potential flow planar motion elliptic cylinder vibrating cylinder

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Understanding Alopecia Areata: Types, Causes, and Latest Therapeutic Approaches

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Journal of Biosciences and Medicines 2024年第11期12卷 323-333页

作者： Noorah Saleh Al-Sowayan Asal Khalid AlRebdi maryah Khalaf AlMarwani Department of Biology College of Science Qassim University Buraydah Saudi Arabia

Background: Alopecia areata (AA) is a common autoimmune condition that causes hair loss. Affecting 0.5% - 2% of the population, AA manifests in several types, from mild to severe. Objectives: This study aimed to examine AA’s etiology and innovative treatments of AA, presenting a comprehensive overview of existing and investigational therapies. Methods: We conducted a systematic literature review and screened recent studies to gain insight into treatment efficacy and outcomes. Results: The complexity of AA and the potential for novel therapies enhanced patients’ quality of life. Conclusions: There is a need for further research into AA’s genetic underpinnings of AA and more targeted treatments.

关键词： Genetics Microorganisms Stress Psychological Pressure Covid 19

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