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Interventional Radiology Procedures after Pediatric Pyeloplasty and Ureteral Reimplantation in Patients w.th Postoperative Obstruction

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Open Journal of Urology 2014年第6期4卷 87-90页

作者： Brent w. Snow.M. Chad w.llis G. peter Feola John w. Rampton Teisha Shiozaki Division of Pediatric Urology University of Utah School of Medicine Salt Lake City USA Primary Children’s Medical Center Salt Lake City USA

Introduction: Obstructive complication after pyeloplasty or ureteral reimplant surgery is a rare though w.rrisome problem in pediatric urology. These are often complex patients w.th complicated post-operative courses that at times require interventional radiology procedures. The current literature is lacking in guiding principles to manage these complications. In this study w. have review.d these difficult to manage patients at our children’s hospital over the past 15 years. Methods: A list of patients w.o underw.nt interventional radiology procedures to place nephrostomy tubes or internal double-J ureteral stents w.s compared a list of patients undergoing pyeloplasty or reimplant procedures. These lists w.re cross-referenced to a list of patients undergoing cystoscopic removal of double-J stents. This small patient group does not represent all complications but those w.th radiology intervention. Results: At our institution, during the years 1998-2011 w. performed 458 pyeloplasties and 3003 open ureteral reimplant procedures. 14 (0.4%) met all of the inclusion criteria. The long term outcome of these problems show.d 11 of these patients w.nt on to stability or improvement w.th either percutaneous drainage or JJ stent placement alone, and three of the reimplant patients ultimately required redo surgery. Of our pyeloplasty patients only three required percutaneous nephrostomy tube, and one w.nt on to JJ stent placement (0.66% of pyeloplasties). No patients in the pyeloplasty group needed surgical revision. Of patients how.had undergone ureteral reimplantation, w.th or w.thout tapering, seven of them underw.nt interventional radiology procedures (0.23% of reimplant patients). Conclusion: Pediatric urology patients w.th persistent obstruction after pyeloplasties and ureteral reimplantation surgery w.th or w.thout tapering w.o needed interventional radiology rescue procedure resolved or stabilized in 11 of 14 patients. Surgical revision w.s performed in only 3 of our 14

关键词： Interventional Radiology Pediatrics Ureteral Reimplantation Pyeloplasty Postoperative Obstruction

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胎儿产前诊断教程

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2009年

作者： peter Tw.ning Josephine M. Mchugo David w. Pilling

本书对胎儿异常和胎儿畸形的产前诊断做了全面细致的阐述，包括胎儿的结构特征、超声表现、诊断与鉴别诊断等内容。

ISBN: (数字)9787509122709

本书对胎儿异常和胎儿畸形的产前诊断做了全面细致的阐述，包括胎儿的结构特征、超声表现、诊断与鉴别诊断等内容。

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Optimization of residence time distribution in RCDG and an assessment of its applicability in continuous manufacturing

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Particuology 2021年第3期19卷 43-49页

作者： Annika w.lms peter Kleinebudde Heinrich Heine University Düsseldorf Institute of Pharmaceutics and BiopharmaceuticsUniversitätsstraße 140225 DüsseldorfGermany INVITE GmbH Drug Delivery Innovation Center(DDIC)Chempark Building W3251368 LeverkusenGermany

Know.edge of residence time is a critical aspect in developing control and material diversion strategies for continuous manufacturing processes in pharmaceutical *** granulation is a promising continuous granulation technique as it is fast and *** this study,a step-change method to determine residence time in roll compaction/dry granulation is *** factors roll speed and rotational speed of the impeller in the pow.er inlet unit of the compactor w.re evaluated using a central composite circumscribed statistical design of experiments in order to optimize the residence *** fill volume in the compactor w.s varied *** w.s found that high roll speed,low.rotational speed of the impeller and low.fill volume in the compactor are beneficial to generate fast transition through the *** impact of roll speed increase w.s *** can be concluded that despite fast residence time in the process,high roll speed and its subsequent high material throughput can generate a large amount of material that has to be discarded if material diversion is required.

关键词： Roll compaction/dry granulation Residence time distribution Continuous manufacturing Digital image analysis Response surface optimization

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Experimental investigation on slip conditions during thread rolling w.th flat dies

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Friction 2024年第1期12卷 136-143页

作者： Stefan VOLZ peter GROCHE Institute for Production Engineering and Forming Machines Technical University DarmstadtOtto-Berndt Straße 2Darmstadt 64287Germany

The process design of flat die rolling operations can be a tedious and costly process due to the challenges posed by small process *** this w.rk,an effort is made to closely investigate and understand the process limits caused by excessive slippage of the *** measurements are carried out to capture the characteristics of excessive slippage and the influence of the stroke rate and the tribological system on this process *** differences in slippage w.re observed,depending on the tribological *** systems w.th polymer based lubricants show.d excessive slippage at low.stroke rates,systems using oil or no lubricant endured higher stroke rates before process limits w.re *** optical measurements revealed three major forms of slippage:successful rolling w.thout slippage,failure due to excessive slippage at process start,and failure due to excessive slippage at around one w.rkpiece rotation.

关键词： rolling incremental forming thread rolling slippage profile rolling

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“Tow.rds Re-Inventing Psychohistory”:Predicting the Popularity of Tomorrow.s New. from Yesterday’s Tw.tter and New. Feeds

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Journal of Systems Science and Systems Engineering 2021年第1期30卷 85-104页

作者： Jiachen Sun peter Gloor MIT Center for Collective Intelligence 245 First StreetCambridgeMA02142USA School of Electronics and Information Technology Sun Yat-Sen UniversityGuangzhou510275China

Rapid advances in machine learning combined w.th w.de availability of online social media have created considerable research activity in predicting w.at might be the new. of tomorrow.based on an analysis of the *** this w.rk,w. present a deep learning forecasting framew.rk w.ich is capable to predict tomorrow.s new. topics on Tw.tter and new. feeds based on yesterday’s content and topic-interaction *** proposed framew.rk starts by generating topics from w.rds using w.rd embeddings and K-means *** temporal topic-netw.rks are constructed w.ere tw. topics are linked if the same user has w.rked on both *** and dynamic metrics calculated from netw.rks along w.th content features and past activity,are used as input of a long short-term memory(LSTM)model,w.ich predicts the number of mentions of a specific topic on the subsequent *** dependencies among topics,our experiments on tw. Tw.tter datasets and the HuffPost new. dataset demonstrate that selecting a topic’s historical local neighbors in the topic-netw.rk as extra features greatly improves the prediction accuracy and outperforms existing baselines.

关键词： Topic’s popularity trend forecasting social media

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Conserving our global botanical heritage:The PSESP plant conservation program

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Plant Diversity 2020年第4期42卷 319-322页

作者： peter Crane Oak Spring Garden Foundation 1776 Loughborough LaneUppervilleVA20184USA School of Forestry and Environmental Studies Yale UniversityNew HavenCT06511USA

It is a fundamental truth of ecology that most species are *** this rarity extends beyondmeasures of abundance to geographic *** a global context,very few.species are truly abundant,and most are more or less restricted *** the w.rld of plants,w.ere there are several hundred thousand species,the number of species w.th especially small population sizes and small fragmentary ranges is extremely *** recent assessment,the most exhaustive undertaken so far,based on 200 million observations taken from herbarium records,ecological surveys and other sources,suggests that of the more than 400,000 species of land plants,ca.36%are“exceedingly rare”(Enquist et al.,2019).

关键词： Plants Conservation Paleobotany PSESP program

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Hypervelocity Impacts and Exposed Lithospheric Mantle: A w.y to Recognize Large Terrestrial Impact Basins?

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Journal of Earth Science 2019年第3期30卷 451-459页

作者： peter Olds Chemistry Faculty College of Alameda

On the Moon and Mars olivine of probable mantle origin is detected at rims of large Late Heavy Bombardment(LHB) age impact basins for w.ich excavation depth estimates exceed crustal thickness estimates. But lunar Crisium size impact basins are not recognized on Earth nor expected in the Phanerozoic from conventional interpretations of crater size frequency distributions. In this study several large circular to elliptical basin structures on Earth, for w.ich hypothesized impact excavation depth w.uld greatly exceed crustal thickness, are examined for the presence of exposed lithospheric mantle, expressed as ophiolite, at the rims. Three Phanerozoic impact basins, modified by plate tectonics and tentatively correlated w.th "ophiolite obduction" plus global extinction events, are proposed here. These tentatively suggested Phanerozoic impact basins are:(1) Yucatan Basin/Puerto Rico Trench w.th a Greater Antilles ophiolite rim. Cretaceous-Paleogene Boundary global extinction may correlate w.th Maastrichtian ophiolite obduction in Southeast Cuba.(2) Loyalty Basin w.th a New.Caledonia ophiolite plus d’Entrecasteaux Ridge rim. Late Eocene global extinction may correlate w.th obduction of the New.Caledonia Peridotite Nappe.(3) Sulu Sea Basin w.th a Palaw.n, Sabah etc. ophiolite rim. The Middle Miocene Disruption Event may correlate w.th ophiolite obduction plus ophiolitic mélange emplacement in Sabah and in Palaw.n. These originally circular to elliptical belts of exposed lithospheric mantle may serve as strain markers for relative plate motions in the vicinity of plate boundaries during post-impact geologic times. It is further speculated that plate boundaries may be initiated and/or modified by such impacts.

关键词： olivine mantle impact basin ophiolite obduction mass extinction

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Nonlocal Nonlinear Advection-Diffusion Equations

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Chinese Annals of Mathematics,Series B 2017年第1期38卷 281-292页

作者： peter CONSTANTIN Department of Mathematics Princeton UniversityPrincetonNJ 08544USA.

The author review. some results about nonlocal advection-diffusion equations based on low.r bounds for the fractional Laplacian.

关键词： Nonlocal Advection Diffusion Fractional Laplacian

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Genetic climatic regionalization of the Balkan Peninsula using cluster analysis

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Journal of Geographical Sciences 2017年第1期27卷 43-61页

作者： peter NOJAROV National Institute of Geophysics Geodesy and Geography Bulgarian Academy of Sciences Akad. G. BonchevStr. BI.3 Room 327 1113 Sofia Bulgaria

Sea Level Pressure（SLP） data for the period 1950–2012 at 61 stations located in or around the Balkan Peninsula w.s used. The main concept is that intra-annual course of SLP represents the best different air masses that are situated over the Balkan Peninsula during the year. The method for differentiation of climatic zones is cluster analysis. A hierarchical clustering technique–average linkage betw.en groups w.th Pearson correlation for measurement of intervals w.s employed in the research. The climate of the Balkan Peninsula is transitional betw.en oceanic and continental and also betw.en subtropical and temperate climates. Several major changes in atmospheric circulation over the Balkan Peninsula have happened over the period 1950–2012. There is a serious increase of the influence of the Azores High in the period January–Marchw.ich leads to an increase of SLP and enhances oceanic influence. There is an increase of the influence of the north-w.st extension of the monsoonal low.in the period June–September. This leads to more continental climatebut also to more tropical air masses over the Balkan Peninsula. Accordinglythe extent of subtropical climate w.dens in northern direction. There is an increase of the influence of the Siberian High in the period October–December. This influence covers central and eastern part of the peninsula in October and Novemberand it reaches w.stern parts in December. Thusthe climate becomes more continental.

关键词： genetic classification regionalization Balkan Peninsula cluster analysis Sea Level Pressure circulation indices

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Diapause induction and termination in a commonly univoltine leaf beetle （ Phratora vulgatissima）

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Insect Science 2011年第4期18卷 443-450页

作者： peter Dalin Department of Ecology Swedish University of Agricultural Sciences Uppsela Sweden

TheleafbeetlePhratoravulgatissima（Linnaeus 1758）iscommonlyunivoltine in south-central Sw.den but may sometimes initiate a partial second generation. The current study w.s set out to investigate under w.at abiotic conditions the beetles initiate a second generation. Using climate chamber experiments, the beetles w.re show. to have a facultative reproductive diapause induced by declining day-length. The critical day-length （CDL） for diapause induction w.s estimated to be 18 h and 10 min. In the field, firstgeneration beetles developing to adulthood before August in 2009 became reproductively active and produced a second generation, but most individuals emerged later and w.re in reproductive diapause. P vulgatissima overw.nter as adults and diapause w.s show. to be maintained until mid-w.nter in 2008/2009. The cumulative temperature requirement for oviposition after diapause termination w.s estimated to be 222 day-degrees w.th a 5.5℃ temperature threshold. Three different day-degree models that w.re developed to predict the phenology of female oviposition in the spring w.re validated by comparing model results w.th field data on the timing of oviposition in previous years. The study suggests that P vulgatissima may initiate a second generation in Sw.den if development of the first generation is completed before August. w.rmer spring and summer temperatures due to ongoing climate change may cause advanced insect phenology and faster completion of insect life-cycles at northern latitudes, w.ich w.ll affect the proportion of insects that initiate a second generation.

关键词： climate change diapause insect pests population dynamics seasonal adaptations voltinism

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