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Landscape features and weather influence nest survival of a ground-nesting bird of conservation concern,the greater sage-grouse,in humanaltered environments

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ecological Processes 2012年第1期1卷 83-97页

作者： Stephen L Webb Chad V Olson Matthew R Dzialak seth M Harju Jeffrey B Winstead Dusty Lockman Hayden-Wing Associates LLC2308 South 8th StreetLaramieWY82070USA KC Harvey environmental LLC376 Gallatin Park DriveBozemanMT59715USA

Introduction:Ground-nesting birds experience high levels of nest ***,birds can make selection decisions related to nest site location and characteristics that may result in physical,visual,and olfactory impediments to ***:We studied daily survival rate[DSR]of greater sage-grouse(Centrocercus urophasianus)from 2008 to 2010 in an area in Wyoming experiencing large-scale alterations to the *** used generalized linear mixed models to model fixed and random effects,and a correlation within nesting attempts,individual birds,and ***:Predation of the nest was the most common source of nest failure(84.7%)followed by direct predation of the female(13.6%).Generally,landscape variables at the nest site(≤30 m)were more influential on DSR of nests than features at larger spatial *** of shrub canopy cover at the nest site(15-m scale)and distances to natural gas wells and mesic areas had a positive relationship with DSR of nests,whereas distance to roads had a negative relationship with DSR of *** added to the vegetation model,maximum wind speed on the day of nest failure and a 1-day lag in precipitation(i.e.,precipitation the day before failure)improved model fit whereby both variables negatively influenced DSR of ***:Nest site characteristics that reduce visibility(i.e.,shrub canopy cover)have the potential to reduce depredation,whereas anthropogenic(i.e.,distance to wells)and mesic landscape features appear to facilitate ***,predators may be more efficient at locating nests under certain weather conditions(i.e.,high winds and moisture).

关键词： behavior Centrocercus urophasianus conservation depredation generalized linear mixed models greater sage-grouse human development management nest survival weather

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Addendum to: An Approach to Hierarchical Clustering via Level Surfaces and Convexity

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Intelligent Information Management 2010年第5期2卷 299-305页

作者： Jerome Malitz seth Malitz 不详

This article is an addendum to the 2001 paper [1] which investigated an approach to hierarchical clustering based on the level sets of a density function induced on data points in a d-dimensional feature space. We refer to this as the “level-sets approach” to hierarchical clustering. The density functions considered in [1] were those formed as the sum of identical radial basis functions centered at the data points, each radial basis function assumed to be continuous, monotone decreasing, convex on every ray, and rising to positive infinity at its center point. Such a framework can be investigated with respect to both the euclidean (L2) and Manhattan (L1) metrics. The addendum here puts forth some observations and questions about the level-sets approach that go beyond those in [1]. In particular, we detail and ask the following questions. How does the level-sets approach compare with other related approaches? How is the resulting hierarchical clustering affected by the choice of radial basis function? What are the structural properties of a function formed as the sum of radial basis functions? Can the levels-sets approach be theoretically validated? Is there an efficient algorithm to implement the level-sets approach?

关键词： Hierarchical Clustering Level Sets Level Surfaces Radial Basis Function Convex Heat Gravity Light Cluster Validation Ridge Path euclidean Distance Manhattan Distance Metric

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Appendix Protects Good Germs

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当代外语研究 2007年第12期 8-9页

作者： seth Borenstein 廖丽

阑尾果真是一个对我们人类无用甚至会导致生命危险的器官吗?它对我们的身体究竟起着怎样的作用?有些国家的医生甚至会在手术时将阑尾作为身体多余的一部分切割掉以避免其今后带来可能的危险,但是美国最近的一项科学研究发现,阑尾其实在... 详细信息

阑尾果真是一个对我们人类无用甚至会导致生命危险的器官吗?它对我们的身体究竟起着怎样的作用?有些国家的医生甚至会在手术时将阑尾作为身体多余的一部分切割掉以避免其今后带来可能的危险,但是美国最近的一项科学研究发现,阑尾其实在某种程度上可以保护我们的内脏!

关键词：阑尾危险身体科学研究多余的微生物学手术切割生命流行病

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Revisiting the Outsiders: Innovative Recruitment of a Marijuana User Network via Web-Based Respondent Driven Sampling

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Social Networking 2014年第1期3卷 19-31页

作者： seth S. Crawford Department of Sociology School of Public Policy Oregon State University Corvallis USA

This study uses an innovative, network-based recruitment strategy (non-monetary, web-based respondent driven sampling) to gather a sample of il/legal marijuana users. Network-driven effects amongst marijuana users are examined to test the explanatory validity of several theories of social deviance. The study finds that respondent driven sampling techniques lack effectiveness without primary monetary incentives, even when meaningful secondary incentives are utilized. Additionally, the study suggests that marijuana user networks exhibit strong homophilic attachment tendencies.

关键词： Marijuana Respondent Driven Sampling Social Network Analysis Methods

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Cost and emissions Implications of Coupling Wind and Solar Power

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Smart Grid and Renewable energy 2012年第4期3卷 308-315页

作者： seth Blumsack Kelsey Richardson John and Willie Leone Family Department of energy and Mineral engineering Pennsylvania State University University Park USA.

We assess the implications on long-run average energy production costs and emissions of CO2 and some criteria pollutants from coupling wind, solar and natural gas generation sources. We utilize five-minute meteorological data from a US location that has been estimated to have both high-quality wind and solar resources, to simulate production of a coupled generation system that produces a constant amount of electric energy. The natural gas turbine is utilized to provide fill-in energy for the coupled wind/solar system, and is compared to a base case where the gas turbine produces a constant power output. We assess the impacts on variability of coupled wind and solar over multiple time scales, and compare this variability with regional demand in a nearby load center, and find that coupling wind and solar does decrease variability of output. The cost analysis found that wind energy with gas back-up has a lower levelized cost of energy than using gas energy alone, resulting in production savings. Adding solar energy to the coupled system increases levelized cost of energy production;this cost is not made up by any reductions in emissions costs.

关键词： Wind energy Solar energy Air emissions

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Kosher Made in China?

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China Today 2009年第11期58卷 65-67页

作者： seth ADAM GROSSMAN

THeRe is an old joke that hints at the understanding two cultures joined through food have for each other：＂If, accordingto the Jewish calendar, the year is 5770, and, according to the Chinese calendar, the year is ... 详细信息

关键词：食品制造食品市场中国犹太人食物

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Lessons Learned——A Former American President Celebrates 30 Years of U.S.-China Relations

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China Today 2009年第12期58卷 32-34页

作者： seth ADAM GROSSMAN

Amonth before the PRC 60th anniversary celebrations in Beijing, I traveled back to the US as part of a group from the Chinese media to meet with former American president George H.W. Bush,

关键词：中华人民共和国得克萨斯州新中国美国布什总统

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Use of synthetic grafts in pelvic reconstruction: A path of continued discovery

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World Journal of Clinical Urology 2016年第1期5卷 11-17页

作者： seth A Cohen Shlomo Raz Division of Pelvic Medicine and Reconstructive Surgery Department of Urology UCLA Medical Center David Geffen School of Medicine at UCLA

Since the 1990 s, mesh has been used in pelvic reconstruction to augment repairs for stress urinary incontinence and pelvic organ prolapse(POP). In 2008 and 2011, the United States Food and Drug Administration(FDA) issued Public Health Notifications ultimately informing providers and the public that complications associated with the use of synthetic mesh in the transvaginal repair of POP are not rare. In this review, we(1) examine literature characterizing surgical practice-patterns subsequent to the FDA announcements;(2) describe presentation of meshassociated complications and outcomes of management;(3) discuss the most recent materials science research; and(4) seek to characterize whether or not mesh has lived up to the long-term efficacy promise of a permanent implant. Durability of mesh-augmented anatomical outcomes do not consistently translate into improved patient satisfaction and subjective outcomes. This, when coupled with the possibility of mesh-associated complications, emphasizes the need for continued innovation beyond the status quo of current synthetic grafts.

关键词： Pelvic organ prolapse Mesh Synthetic graft Mesh-associated complications Mesh extrusion Mesh erosion Host response

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exacerbation of Soft Tissue Lesions in Lead exposed Virus Infected Mice

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Biomedical and environmental Sciences 2003年第4期16卷 369-378页

作者： PRATIBHAGUPTA M.M.HUSAIN RAVISHANKeRt R.K.S.DOGRA P.K.seth R.K.MAHeSHWARI PRATIBHAGUPTAt VirologyLaboratory IndustrialToxicologyResearchCentreP.O.BoxNo.80MahatmaGandhiMargLucknow226001lndia DepartmentofPathology UniformedServicesUniversityofHealthSciences4301JonesBridgeRoadBethesdaMD20814USA

Objective To investigate the effect of Lead (Pb) acetate exposure on Semliki forest virus (SFV) pathogenesis in mice. Methods Different doses (62.5, 125, 250 and 500 mg/Kg body weight) of Pb dissolved in normal saline were given to mice by oral intubation in a sub-acute (28 days) and sub-chronic (90 days) regimen followed by SFV infection. Morbidity, mortality, clinical symptoms, mean survival time (MST), changes in body and organ weight, accumulation of lead in soft tissues, virus titre in brain and histopathological alterations were compared between lead exposed and infected groups. Results early appearance of virus symptoms, increased mortality, decreased MST, enhanced SFV titre and greater tissue damage were observed in lead exposed-SFV-infected mice. Conclusion Pre-exposure to lead increases the susceptibility of mice towards SFV infection. Further studies are suggested in view of the persistence of lead in the environment and the possibility of infection by microbial pathogens.

关键词： Lead acetate exposure Sub-acute Sub-chronic SFV Pathogenicity

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Spondylodiscitis, epidural abscess, and meningitis after transoral robotic surgical resection of a squamous cell carcinoma of the posterior pharyngeal wall

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Laparoscopic, endoscopic and Robotic Surgery 2021年第3期4卷 85-89页

作者： seth I.Noorbakhsh Jeffson C.H.Chung Meghan T.Turner West Virginia University School of Medicine 1 Medical Center DriveMorgantownWV26506USA Department of Otolaryngology West Virginia University Health Sciences Center1 Medical Center DriveMorgantownWV26506USA

Transoral robotic surgery(TORS)is a minimally invasive technique for resection of tumors of the posterior pharyngeal ***,post-TORS cervical spondylodiscitis has been reported in the literature,with high morbidity and mortality.A 64-year-old female with underlying cervical disk disease underwent TORS resection of a posterior pharyngeal wall carcinoma without reconstruction in April *** one month post-operatively,the patient presented with clinical and radiographic signs of spondylodiscitis,epidural abscess,and *** patient was treated with antibiotic therapy and anterior cervical discectomy and *** patient recovered without neurologic deficit.A three-month post-treatment PeT-CT scan showed no evidence of residual ***-operative cervical spondylodiscitis and meningitis are rare complications of TORS resection for posterior pharyngeal wall carcinomas,but the risk is increased in patients with underlying cervical disk *** such patients,perioperative antibiotic treatment and/or reconstruction should be considered to prevent neurologic complications and death.

关键词： Transoral robotic surgery Posterior pharyngeal wall carcinoma Spondylodiscitis Meningitis Surgical complication

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