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On an isotropic porous solid cylinder:the analytical solution and sensitivity analysis of the pressure

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Applied Mathematics and Mechanics(English Edition) 2024年第9期45卷 1499-1522页

作者： H.ASGHARI l.MIllER R.PENTA J.MERODIO Departamento de Matematica Aplicada a las TIC ETS de Ingenieria de Sistemas InformaticosUniversidad Politecnica de MadridMadrid 28031Spain School of Mathematics and Statistics University of GlasgowGlasgow G128QQU.K.

Within this work,we perform a sensitivity analysis to determine the influence of the material input parameters on the pressure in an isotropic porous solid *** provide a step-by-step guide to obtain the analytical solution for a porous isotropic elastic cylinder in terms of the pressure,stresses,and elastic *** obtain the solution by performing a laplace transform on the governing equations,which are those of Biot's poroelasticity in cylindrical polar *** enforce radial boundary conditions and obtain the solution in the laplace transformed domain before reverting back to the time *** sensitivity analysis is then carried out,considering only the derived pressure *** analysis finds that the time t,Biot's modulus M,and poisson's ratio ν have the highest influence on the pressure whereas the initial value of pressure P_(0) plays a very little role.

关键词： sensitivity analysis laplace transform cylindrical polar coordinate Biot's modulus cylinder

Impaired cellulose decomposition in a headwater stream receiving subsurface agricultural drainage

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Ecological Processes 2022年第1期11卷 845-861页

作者： Rebecca poisson Adam G.Yates Department of Geography Western UniversityLondonONCanada Department of Biology University of WaterlooWaterloo University200 University Avenue WestWaterlooON N2L 3G1Canada

Background:Agricultural development of former wetlands has resulted in many headwater streams being sourced by subsurface agricultural drainage *** drainage inputs can significantly influence stream environmental conditions,such as temperature,hydrology,and water chemistry,that drive ecological ***,ecological assessments of subsurface drainage impacts are *** assessed the impact of an agricultural drainage system on cellulose decomposition and benthic respiration using a paired stream study in a headwater branch of Nissouri Creek,in Ontario,*** first order segments sourced by a spring-fed marsh and a cropped field with subsurface drainage,as well as the adjoining trunk segment,were sampled over a year using the cotton strip assay to measure cellulose decomposition and benthic ***:Assessments of cellulose decomposition revealed a one-third reduction in the drainage-sourced segment compared to marsh-sourced *** segment differences in cellulose decomposition were associated with reduced summer temperatures in the drainage-sourced *** of stream cooling from the drainage-sourced segment were transmitted downstream as cellulose decomposition was slower than expected throughout the drainage-sourced segment and for several hundred meters down the adjoining trunk *** respiration only differed between the drainage-and marsh-sourced segments in spring,when stream temperatures were ***:Our findings suggest there may be a widespread reduction in cellulose decomposition in streams across similar agricultural regions where subsurface drainage is ***,cooling of streams receiving significant amounts of water inputs from subsurface drainage systems may impart increased resiliency to future climate warming.

关键词： Stream Agriculture Cotton strip assay Seasonality Organic matter breakdown Benthic respiration

Small bowel capsule endoscopy and treat-to-target in Crohn’s disease: A systematic review

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World Journal of Gastroenterology 2019年第31期25卷 4534-4554页

作者： Catherine le Berre Caroline Trang-poisson Arnaud Bourreille Institut des Maladies de l’Appareil Digestif Nantes University Hospital

BACKGROUND Crohn’s disease(CD)can affect the entire gastrointestinal *** small bowel(SB)lesions are associated with a significant risk of stricturing disease and multiple abdominal *** assessment of SB in patients with CD is therefore necessary because it may have a significant impact on prognosis with potential therapeutic *** of the weak correlation that exists between symptoms and endoscopic disease activity,the“treat-to-target”paradigm has been developed,and the associated treatment goal is to achieve and maintain deep remission,encompassing both clinical and endoscopic *** bowel capsule endoscopy(SBCE)allows to visualize the mucosal surface of the entire *** that time,there is no recommendation regarding the use of SBCE during *** To investigate the impact of SBCE in a treat-to-target strategy in patients with *** An electronic literature search was conducted in PubMed and Cochrane library using the following search terms:“capsule endoscopy”,in combination with“Crohn’s disease”and“treat-to-target”or *** authors independently reviewed titles and abstracts identified by the search strategy after duplicates were *** the initial screening of abstracts,all articles containing information about SBCE in the context of treat-to-target strategy in patients with CD were ***-text articles were retrieved,reference lists were screened manually to identify additional *** Forty-seven articles were included in this *** indexes are currently used to quantify disease activity using SBCE,and there is good correlation between *** was shown to be useful for disease reclassification in patients who are suspected of having or who are diagnosed with CD,with a significant incremental diagnostic yield compared to other diagnostic *** studies also demonstrated that the mucosal healing can be evaluated by SBCE to monitor the effect of medical treatment

关键词： Wireless capsule endoscopy Inflammatory bowel disease Treat-to-target Monitoring Mucosal healing Post-operative recurrence Prognosis

Global prevalence and gender inequalities in at least 60 min of self-reported moderate-to-vigorous physical activity 1 or more days per week:An analysis with 707,616 adolescents

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Journal of Sport and Health Science 2024年第5期13卷 709-716页

作者： Raphael H.O.Araujo AndrúO.Werneck Clarice l.Martins luciana l.Barboza Rafael M.Tassitano Nicolas Aguilar-Farias Gilmar M.Jesus Robinson Ramírez-Véelez Riki Tesler Adewale l.Oyeyemi Ellen C.M.Silva Robert G.Weaver Mark S.Tremblay Javier Brazo-Sayavera Grégore I.Mielke Danilo R.P.Silva Graduation Program in Health Sciences Londrina State University(UEL)Londrina 86057-970Brazil Center for Epidemiological Research in Nutrition and Health Department of NutritionSchool of Public HealthUniversidade de Sao Paulo(USP)Sao Paulo 01246-904Brazil Department of Physical Education Federal University of ParaıbaParaıba 58051-900Brazil Research Centre of Physical Activity Health and LeisureFaculty of SportsLaboratory for Integrative and Translational Research in Population Health(ITR)University of PortoPorto 4500Portugal Postgraduate Program in Physical Education University of BrasıliaBrasılia 70910-900Brazil Department of Kinesiology and Community Health University of Illinois at Urbana-ChampaignChampaignIL 61801-3841USA Department of Physical Education Sports and RecreationUniversidad de La FronteraTemuco 4680000Chile Department of Health State University of Feira de SantanaFeira de Santana 44036-900Brazil Navarrabiomed Hospital Universitario de Navarra(HUN)Navarra Institute for Health Research(IdiSNA)Universidad Publica de Navarra(UPNA)Pamplona 31006Spain Facultad de Ciencias de la Educacion Unidad Central del Valle del Cauca(UCEVA)TuluaValle del Cauca 763022Colombia Health Management Department Faculty of Heath sciencesAriel UniversityAriel 40700Israel College of Health Solutions Arizona State UniversityPhoenixAZ 85004USA Arnold School of Public Health University of South CarolinaColumbiaSC 29208USA Healthy Active living and Obesity Research Group Children’s Hospital of Eastern Ontario Research InstituteOttawaON K1H 8L1Canada Department of Pediatrics University of OttawaOttawaON K1H 8L1Canada Department of Health Sciences Carleton UniversityOttawaON K1S 5B6Canada Department of Sports and Computer Science Universidad Pablo de Olavide(UPO)Seville 41013Spain Centro Universitario Regional Noreste Universidad de la RepublicaRivera 40000Uruguay School of Public Health The University of QueenslandBrisbaneQLD 4006Australia Department of Physical Education

Background:Guidelines recommend that adolescents should accumulate an average of 60 min per day of moderate-to-vigorous physical activity(MVPA).However,using only this cut-off could hide important *** instance,from a population-level point of view,increasing physical activity for those with no or low physical activity could provide more health benefits than increasing physical activity for those with intermediate ***,including a more sensitive cut-point of≥1 days per week could be an additional strategy for identifying those with low access/opportunities for physical activity ***,the current study aims to estimate the prevalence of≥60 min of MVPA≥1 days per week among adolescents globally,and to describe any relevant gender ***:We used representative datasets from 146 countries/territories collected between 2003 and *** was *** were grouped into younger(≤14 years old)and older(>14 years old)*** poisson regression models were used to identify the relative differences in≥60 min of MVPA≥1 days per week between boys and girls,and random-effects meta-analysis models were used to identify the pooled *** were stratified by country and ***:Approximately 80%of both younger and older adolescents reported≥60 min of MVPA≥1 days per *** prevalence was≥94%in Europe and Central Asia and North America,while the estimates for the other regions werelence of≥60 min of MVPA≥1 days per week was higher among boys than girls,with the largest differences occurring among the oldest adolescents(Prevalence ratio_(≤14y)=1.04(95%confidence interval(95%CI)):1.03-1.04)*** ratio_(>14y)=1.09(95%CI:1.08-1.10)).Conclusion:Approximately 8 out of 10 adolescents reported accumulating≥60 min of MVPA≥1 days per week,with notable differences between *** differences were observed in several countries,especially among the oldest *** fo

关键词： Global School-based Student Health Survey Health Behaviour Among School-aged Children survey Inequality Surveillance Youth

Crustal structure in the Anyuan Coal Mine and its adjacent areas of Jiangxi Province by P-wave receiver functions

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Earthquake Research Advances 2024年第1期4卷 47-58页

作者： Xingmian Zhang Meng Gong Jian lü Hongxing li Jie Hu Junwen He Jianhua Peng Bingyue liu State Key laboratory of Nuclear Resources and Environment East China University of TechnologyNanchang330013China Nanchang Key laboratory of Intelligent Sensing Technology and Instruments for Geological Hazards East China University of TechnologyNanchang330013China Jiangxi Earthquake Agency Nanchang330026China East China University of Technology School of Geophysics and Measurement-Control TechnologyNanchang330013China Hunan Earthquake Agency Changsha410004China

We collected high-quality teleseismic events recorded by 12 broadband seismographs deployed in the Anyuan Coal Mine and its adjacent areas in Pingxiang City,Jiangxi Province for nearly two *** H-κ-c stacking method was employed to obtain the crustal thickness and poisson's ratio distribution,then the characteristics of crustal structure below the stations were obtained by using the time-domain linear inversion *** crustal thickness in the Anyuan Coal Mine and its adjacent areas ranges from approximately 32~35 km,with an average thickness of 33 km,which is consistent with the crustal thickness results in South China from previous studies using the receiver function *** average poisson's ratio of the crustal bulk composition in the study area varies between 0.22 and 0.25,which is lower than the global value with a 0.27 average,indicating a predominantly intermediate-acidic or felsic crustal *** is a weak negative correlation between poisson's ratio and crustal thickness estimates in the Anyuan Coal Mine and its adjacent areas,suggesting that the absence of mafic-ultramafic materials in the lower crust is associated with the process of crustal *** velocity inversion results indicate that the crustal structure including three velocity discontinuity interfaces,with the first at a depth of approximately 1.5 km,the second at about 10~15 km,and the third being the *** study also indicates that the results obtained by the H-κ-c stacking method are significantly better than those obtained by the H-κmethod,effectively reducing the standard deviation and dispersion of crustal thickness and vP/vSratio.

关键词： Anyuan Coal Mine Receiver function H-κ-c stacking Crustal thickness poisson's ratio

Crohn’s-like acute severe colitis associated with Hermansky-Pudlak syndrome: A case report

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World Journal of Gastroenterology 2019年第8期25卷 1031-1036页

作者： Paul Girot Catherine le Berre Astrid De Maissin Marie Freyssinet Caroline Trang-poisson Arnaud Bourreille Institut des Maladies de l’Appareil Digestif Department of Gastroenterology and Digestive OncologyNantes University HospitalNantes Cedex 44093France Department of Gastroenterology Clinique Jules VerneNantes 44300France

BACKGROUND Hermansky-Pudlak syndrome(HPS)is a rare autosomal recessive disorder characterized by oculocutaneous albinism,platelet storage pool deficiency and systemic complications associated with ceroid deposition in the reticuloendothelial *** types 1 and 4 are associated with Crohn’s disease(CD)-like gastrointestinal disorders,such as granulomatous enterocolitis or perianal *** of colitis can be particularly severe and,before the use of anti-tumor necrosis factor alpha(TNFα)therapy had become common,were reported as showing poor responsiveness to medical *** SUMMARY We present the case of a 51-year-old albino woman who presented with acute severe colitis that led to the diagnosis of *** findings of biopsy samples showed chronic inflammation with deep ulcerations,and granulomas without caseous *** genetic analysis confirmed HPS type 1,with a homozygous 27 base-pair deletion in exon 20 of the HPS1 *** the patient’s bleeding diathesis was corrected by platelet transfusion,the granulomatous colitis responded dramatically to a medical treatment regimen that included corticosteroids,azathioprine and infliximab;this regimen is similar to that used in CD *** it remains unclear if the granulomatous enterocolitis in HPS is due to ceroid deposition or reflects the co-existence of CD and HPS,the fact that this case of HPS-related granulomatous colitis responded to the same therapeutic approach used in CD suggests that this type of colitis may result from HPS patients’genetic susceptibility to *** We report a case of severe colitis that led to the diagnosis of HPS,which was responsive to azathioprine and infliximab.

关键词： Hermansky-Pudlak syndrome Acute severe colitis Infliximab Azathioprine Inflammatory bowel disease Case report

基于力学时变性的页岩油藏四维地应力演化规律研究

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油气地质与采收率 2024年第5期31卷 56-65页

作者：吕琦吕晶程紫燕宋阳侯健中国石化胜利油田分公司勘探开发研究院山东东营257015 中国石油大学(华东)石油工程学院山东青岛266580

裂缝对页岩岩石力学性质影响突出,准确表征含裂缝页岩的岩石力学性质变化是实现页岩油藏压裂-投产过程中四维地应力场精准刻画的重要基础。已有四维地应力研究通常认为应力变化主要源于孔隙压力改变,未考虑岩石力学性质变化对四维地应... 详细信息

裂缝对页岩岩石力学性质影响突出,准确表征含裂缝页岩的岩石力学性质变化是实现页岩油藏压裂-投产过程中四维地应力场精准刻画的重要基础。已有四维地应力研究通常认为应力变化主要源于孔隙压力改变,未考虑岩石力学性质变化对四维地应力的影响。利用在线CT实验,明晰了孔隙压力与页岩孔缝体积的关系,依据应变能理论,推导了裂缝体积与页岩泊松比、弹性模量的理论关系,建立了孔隙压力与泊松比、弹性模量的时变理论模型。结果表明,层理缝开启是页岩岩石力学参数具有时变性的主要原因,孔隙压力越大,裂缝开启条数越多,裂缝空间呈指数型增长。随裂缝体积增加,页岩泊松比快速增加、杨氏模量快速减小,页岩强度大幅降低。以济阳坳陷页岩为例开展分析,裂缝体积占比提高至1%时,杨氏模量由37.5GPa下降至15.06GPa,泊松比由0.22上升至0.35。依托数值模拟方法对比分析岩石力学参数时变性对四维地应力演化的影响,考虑岩石力学时变性特征的四维地应力模拟能够更好地表征页岩压裂-投产过程中的应力大小演化与方向偏转的规律,与实际油藏压裂-投产过程中的四维地应力演化规律更加吻合,模拟结果更加可靠。研究成果能够为页岩油立体井组合理部署、优化设计、风险预警等提供理论支撑。

关键词：页岩油四维地应力岩石力学性质时变性特征四维地应力模拟

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羊茅与黑麦草属牧草种间杂交

中国草地 1994年第5期16卷 66-71,73页

作者：米福贵 C.poisson 内蒙古农牧学院 INRA-Stationd'Ameliorationdesplantes

羊茅与黑麦草属牧草间杂交为改善羊茅品质提供了广泛的遗传变异性。大量的试验结果证明，单个基因，染色体片断，甚至整条染色体或整个染色体组能否从一个种成功地渐渗到另一个种中去，主要决定于杂种的染色体配对水平及其减数分裂的稳... 详细信息

羊茅与黑麦草属牧草间杂交为改善羊茅品质提供了广泛的遗传变异性。大量的试验结果证明，单个基因，染色体片断，甚至整条染色体或整个染色体组能否从一个种成功地渐渗到另一个种中去，主要决定于杂种的染色体配对水平及其减数分裂的稳定性；为了提高杂种的孕性，杂种或亲本的染色体数有时也需加倍。本文评价了一些杂种的潜力，并对该领域的进展作了简要回顾。

关键词：种间杂交羊茅属黑麦草属牧草

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多花黑麦草×苇状羊茅属间杂种的细胞学研究

草地学报 1995年第1期3卷 9-14页

作者：米福贵 C.poisson Z.Zwierzyskowski 内蒙古农牧学院 INRA-SAPF 86600LusignaFrance InstituteofPlantGenetic-PolishAcademicofScience Pologne

在法国农研所吕尼西昂饲用植物育种站，通过远缘杂交以及多倍体人工诱导，获得了多花黑麦草（2X）与苇状羊茅（4X）间的三倍体、四倍体和六倍体属间杂种。这些杂种的细胞学资料表明，苇状羊茅的两个染色体组及其与黑麦草染色体组相互之... 详细信息

在法国农研所吕尼西昂饲用植物育种站，通过远缘杂交以及多倍体人工诱导，获得了多花黑麦草（2X）与苇状羊茅（4X）间的三倍体、四倍体和六倍体属间杂种。这些杂种的细胞学资料表明，苇状羊茅的两个染色体组及其与黑麦草染色体组相互之间均存在着一定程度的亲缘关系；保持并利用四倍化的双二倍体是可行的，但六倍化双二倍体的前景则难以予测。总之，苇状羊茅与黑麦草染色体之间可以交换的事实得以将多花黑麦草的基因导入到苇状羊茅中，进而使后者得以改良。

关键词：属间杂交多花黑麦草苇状羊茅细胞学