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Effect of stress-dependent microannulus aperture on well leakage

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journal of Rock Mechanics and Geotechnical Engineering 2024年第6期16卷 1967-1976页

作者： Meng Meng Luke P.Frash j.William carey Mohamed Mehana Wenfeng Li Bailian chen Earth and Environmental Sciences Los Alamos National LaboratoryLos AlamosNMUSA

Debonding at the cement-casing interface is recognized as a principal failure mechanism leading to cO_(2) leakage in *** detachment gives rise to a microannulus,which notably possesses greater permeability than undamaged cement,undermining its sealing ***,the permeability of the microannulus is regarded as a uniform value throughout the ***,fundamentally,a microannulus is one type of fracture,and its gap or aperture size is affected by the effective *** this work,we developed a unique experimental *** equipment facilitates the curing of cement inside a steel casing,the formation of a microannulus between the casing and the cement,and the investigation of the fluid flow dynamics along the microannulus under laboratory-replicated in situ *** microannulus was formed by injecting fluid from one end of the setup,and receiving similar amount of fluid on the other end signified the development of the leakage ***,strain gauges affixed to the casing’s external surface yielded key information on the microannulus’s opening and *** observed a noticeable decline in microannulus hydraulic aperture(or permeability)in relation to effective stress and an exponential equation fits their *** findings also indicate a distinct behavior when comparing liquid cO_(2) with ***,it is easier for liquid cO_(2) to create the ***,the hydraulic aperture range for this microannulus(0.7-6 mm)is considerably smaller than that created by water flow(2-17 mm).Finally,we integrated the stressdependent microannulus aperture size into the combined analysis of well mechanical integrity and well *** outcomes consistently demonstrated that when factoring in the stress-dependent aperture sizes,the leakage rates are 3e5 times compared to a fixed aperture *** traditional assumption of a constant aperture significantly underestimates fluid leakage risks.

关键词： Microannulus Leakage assessment Aperture size Triaxial experiment carbon sequestration

Association of daily sitting time and leisure-time physical activity with body fat among ***

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journal of Sport and Health Science 2024年第2期13卷 195-203页

作者： jingwen Liao Min Hu Kellie Imm clifton j.Holmes jie Zhu chao cao Lin Yang Guangdong Provincial Key Laboratory of Physical Activity and Health Promotion Guangzhou Sport UniversityGuangzhou 510500China Scientific Research center Guangzhou Sport UniversityGuangzhou 510500China Division of Epidemiology&Genetics Department of Population and Public Health SciencesKeck School of Medicine of the University of Southern CaliforniaLos AngelesCA 90033USA Program in Physical Therapy Washington University School of MedicineSt.LouisMO 63110USA center for Human Nutrition Washington University School of MedicineSt.LouisMO 63110USA Department of Plastic and Reconstructive Surgery Shanghai East HospitalTongji UniversityShanghai 200070China Department of cancer Epidemiology and Prevention Research Alberta Health ServicesCalgary T2S 3C3Canada Department of Oncology and community Health Sciences University of CalgaryCalgary T2N 1N4Canada

Background:Prolonged sitting and reduced physical activity lead to low energy ***,little is known about the joint impact of daily sitting time and physical activity on body fat *** investigated the independent and joint associations of daily sitting time and physical activity with body fat among ***:This was a cross-sectional analysis of *** representative data from the National Health and Nutrition Examination Survey2011-2018 among adults aged 20 years or *** sitting time and leisure-time physical activity(LTPA)were self-reported using the Global Physical Activity *** fat(total and trunk fat percentage)was determined via dual X-ray ***:Among 10,808 adults,about 54.6%spent 6 h/day or more sitting;more than one-half reported no LTPA(inactive)or less than 150 min/week LTPA(insufficiently active)with only 43.3%reported 150 min/week or more LTPA(active)in the past *** fully adjusting for sociodemographic data,lifestyle behaviors,and chronic conditions,prolonged sitting time and low levels of LTPA were associated with higher total and trunk fat percentages in both *** stratifying by LTPA,the association between daily sitting time and body fat appeared to be stronger in those who were inactive/insuufficiently *** the joint analyses,inactive/insuufficiently active adults who reported sitting more than 8 h/day had the highest total(female:3.99%(95%confidence interval(95%cI):3.09%-4.88%);male:3.79%(95%cI:2.75%-4.82%))and trunk body fat percentages(female:4.21%(95%cI:3.09%-5.32%);male:4.07%(95%cI:2.95%-5.19%))when compared with those who were active and sitting less than 4 h/***:Prolonged daily sitting time was associated with increased body fat among *** higher body fat associated with 6 h/day sitting may not be offset by achieving recommended levels of physical activity.

关键词： Adults Body fat distribution Physical activity Sitting time

Biodiversity Assessment of Avifauna in the Forest Reservation of Aurora State college of Technology (AScOT), Philippines

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Open journal of Ecology 2024年第4期14卷 292-308页

作者： Afed S. Daiwey Heherson B. Ong Emerson V. Barcellano Edmundo c. Gumpal Michelle Ann M. calubaquib Rafael j. Padre School of Forestry and Environmental Sciences Aurora State College of Technology Baler Philippines college of Forestry and Environmental Science Isabela State University Cabagan Philippines college of Agriculture Isabela State University Cabagan Philippines college of Engineering Isabela State University Echague Philippines

The research study was conducted to assess and quantify the current status of avifauna biodiversity assets of Aurora State college of Technology’s Forest Reservation in Baler, Aurora, Philippines. Assessment of avifaunal diversity was undertaken by traversing the four established circular plots having a radius of 125 meters or 250 meters diameters each as permanent monitoring stations. Study revealed a total number of 151 Individual species, classified into 23 genera and 21 families. Eighteen of these species are endemic while the remaining five were fully migrated birds. All birds observed were classified as Least concern (Lc) species according to the International Union for conservation of Nature’s Red List of Threatened Species and the updated list of the Birds of the World online. Its abundance, richness and diversity index were calculated using Shannon Diversity Index (H') while Pielou’s evenness (j') for distribution of species. Forest reservation of AScOT has more even (0.756 j') and moderate diversity (2.812 H') observation on avifauna in general. However, this avian population evaluation was threatened into a verge of extinction due to natural and anthropological threats that causes forest deforestation. Such deforestation of habitat causes dwindling of wildlife territory leading to the scarcity of bird’s population. Thus, the assessment was conducted to aid AScOT administration find significant plans to ensure sustainable conservation and protection of the remaining avifauna species in the reservation area.

关键词： Biodiversity Avifauna Abundance Species Richness Species Diversity

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洛奇和松鼠

中学生英语 2024年第13期 12-15页

作者： RV Staff Writer j.c. 乔雅(译) 不详

浣熊洛奇独自在公园玩耍。它注意到附近有一群松鼠在把橡子当足球踢。看起来很有趣,洛奇希望自己也能玩。然而,一想到要和别人说话它就紧张,不知道如何开口。它们为什么要和我一起玩呢?它想,我并不特别。也许有办法让我变得与众不同。... 详细信息

浣熊洛奇独自在公园玩耍。它注意到附近有一群松鼠在把橡子当足球踢。看起来很有趣,洛奇希望自己也能玩。然而,一想到要和别人说话它就紧张,不知道如何开口。它们为什么要和我一起玩呢?它想,我并不特别。也许有办法让我变得与众不同。那么它们可能会对我更感兴趣一点。洛奇挠了挠头,不知道自己能做什么。如果它假装来自另一个国家,松鼠们一定会觉得很酷。

关键词：另一个国家洛奇松鼠与众不同

The Effects of Zinc Sulfate on the in Vitro Digestibility of Feeds in cervids

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Open journal of Animal Sciences 2024年第3期14卷 157-167页

作者： Reese j. Thibodeaux Philip M. Urso Stanley F. Kelley Marcy M. Beverly chris R. Stewart Ian c. Dunn Gentech Diagnostics Dallas Texas USA Department of Animal Science South Dakota State University Brookings South Dakota USA School of Agricultural Sciences Sam Houston State University Huntsville Texas USA 3-S Texas Outdoors/3-S Whitetails Bedias Texas USA

The captive white-tailed deer industry has an estimated impact of 1.6 billion USD in the state of Texas alone. However, nutritional requirements for cervids are determined through research based on sheep and goats. The objective of this study was to determine the effects of zinc on differences in dry matter digestibility in vitro for white-tailed does (Odocoileus virginianus). Deer (n = 2) were ethically harvested, rumens were collected, and placed into a cooler containing warm water. Rumen contents were agitated, and fluid was filtered using cheese cloth while applying cO2. Fluid was placed into four separate incubator jars with filter bags containing a 1:1 alfalfa to coastal hay blend. Zinc doses of 0.073 mg/kg/d equivalents were added to two of the jars ( Zn), and the additional two jars received 0.00 mg/kg/d (cON). Following 48 h of incubation, in vitro true digestibility (IVTD) showed no significant differences between the control and the treatment groups. Average dry matter digested in vitro was 91.87% and 95.13%, respectively. There were no differences detected in ADF, NDF, IVTD, or OM between the treatment groups. While no detectable differences were observed in this study, this methodology did prove to be viable and functional for microbial digestion in vitro. This study can be replicated with multiple experimental units to confirm the observations of increased digestibility. Formal nutritional guidelines can be created to allow for more efficient feeding of cervids thereby reducing feed costs and continuing the growth of the captive deer industry.

关键词： Zinc IVDMD In Vitro cervids

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波利赫罗纽对安瓦尔·谢克的访谈

政治经济学季刊 2024年第3期 179-188页

作者： c.j.波利赫罗纽孙小雨中国社会科学院经济研究所

出于对种族主义和贫困等现实问题的兴趣，安瓦尔·谢克从工程学转向经济学专业。他拒绝了占据主流地位的新古典经济学，不认同作为新古典分析基础的完全竞争概念。同时，他也认为作为后凯恩斯主义经济学的分析基础——不完全竞争将完全... 详细信息

出于对种族主义和贫困等现实问题的兴趣，安瓦尔·谢克从工程学转向经济学专业。他拒绝了占据主流地位的新古典经济学，不认同作为新古典分析基础的完全竞争概念。同时，他也认为作为后凯恩斯主义经济学的分析基础——不完全竞争将完全竞争视为其理论构建的参照点，从而产生另一个需要填补的漏洞。谢克主张沿着斯密、李嘉图和马克思这些古典政治经济学家的思想脉络，发展一个逻辑一致的、系统的替代性框架——真实竞争理论。他基于该理论进一步研究了价值和分配、利润率下降趋势、国际贸易和经济危机等重要理论问题。这些研究成果最终以《资本主义：竞争、冲突与危机》一书出版，极大增强了马克思主义对资本主义经济运行的解释力。最后谢克指出资本主义的演化和新冠病毒的变异存在某种相似性。

关键词：新古典经济学真实竞争利润率

A review of public health guidelines for postpartum physical activity and sedentary behavior from around the world

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journal of Sport and Health Science 2024年第4期13卷 472-483,F0003页

作者： Kelly R.Evenson Wendy j.Brown Alison K.Brinson Emily Budzynski-Seymour Melanie Hayman Department of Epidemiology Gillings School of Global Public HealthUniversity of North Carolina at Chapel HillChapel HillNC 27599-8050USA Faculty of Health Sciences and Medicine Bond UniversityGold CoastQLD 4226Australia School of Human Movement and Nutrition Sciences The University of QueenslandBrisbaneQLD 4072Australia Department of Anthropology University of North Carolina at Chapel HillChapel HillNC 27599-3115USA carolina Population center University of North Carolina at Chapel HillChapel HillNC 27599-8120USA Faculty of Sport Health and Social SciencesSolent UniversitySouthamptonSO140YNUK Appleton Institute School of HealthMedical and Applied SciencesCentral Queensland UniversityRockhamptonQLD 4701Australia

Background:The period following pregnancy is a critical time window when future habits with respect to physical activity(PA) and sedentary behavior(SB) are established;therefore,it warrants *** purpose of this scoping review was to summarize public health-oriented country-specific postpartum PA and SB guidelines ***:To identity guidelines published since 2010,we performed a(a) systematic search of 4 databases(cINAHL,Global Health,PubMed,and SPORTDiscus),(b) structured repeatable web-based search separately for 194 countries,and(c) separate web-based *** the most recent guideline was included for each ***:We identified 22 countries with public health-oriented postpartum guidelines for PA and 11 countries with SB *** continents with guidelines included Europe(n=12),Asia(n=5),Oceania(n=2),Africa(n=1),North America(n=1),and South America(n=1).The most common benefits recorded for PA included weight control/management(n=10),reducing the risk of postpartum depression or depressive symptoms(n=9),and improving mood/well-being(n=8).Postpartum guidelines specified exercises to engage in,including pelvic floor exercises(n=17);muscle strengthening,weight training,or resistance exercises(n=13);aerobics/general aerobic activity(n=13);walking(n=11);cycling(n=9);and swimming(n=9).Eleven guidelines remarked on the interaction between PA and breastfeeding;several guidelines stated that PA did not impact breast milk quantity(n=7),breast milk quality(n=6),or infant growth(n=3).For SB,suggestions included limiting long-term sitting and interrupting sitting with ***:country-specific postpartum guidelines for PA and SB can help promote healthy behaviors using a culturally appropriate context while providing specific guidance to public health practitioners.

关键词： Breastfeeding caesarean section Guidelines Postnatal Recommendations

Dynamical study of varicella-zoster virus model in sense of Mittag-Leffler kernel

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International journal of Biomathematics 2024年第3期17卷 153-183页

作者： Qura Tul Ain Aziz Khan Thabet Abdeljawad j.F.Gomez-Aguilar Saleem Riaz Department of Mathematics Guizhou University GuiyangGuizhou 550025P.R.China Department of Mathematics and Sciences Prince Sultan University P.O.Bor 66833 11586 RiyadhSaudi Arabia Department of Medical Research china Medical University Taichung 40402Taiwan cONAcyT-Tecnologico Nacional de Mécico/cENIDET Interior Internado Palmira S/N Col.Palmira C.P.62490CuernavacaMorelosMécico IConsejo Academico Universidad Virtual CNCIMonterreyMécico School of Automation Northwestern Polytechnical University 170072 Xian P.R.China

The primary varicella-zoster virus(VzV)infection that causes chickenpox(also known as varicella),spreads quickly among people and,in severe circumstances,can cause to fever and *** this paper,the Mittag-Leffler fractional operator is used to examine the mathematical representation of the *** fractional-order differential equations are created in terms of the disease's dynamical analysis such as S:Susceptible,V:Vaccinated,E:Exposed,I:Infectious and R:*** derive the existence criterion,positive solution,Hyers-Ulam stability,and boundedness of results in order to examine the suggested fractional-order model's ***,some numerical examples for the VzV model of various fractional orders are shown with the aid of the generalized Adams-Bashforth-Moulton approach to show the viability of the obtained results.

关键词： Varicella-zoster virus model Hyers-Ulam stability ABc fractional operator Schauder fix point theory numerical analysis

comparison of trigeminal lateralization with differing stimulants

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World journal of Otorhinolaryngology-Head and Neck Surgery 2024年第1期10卷 66-69页

作者： Tiffany chen Nicolas S.Poupore Michael c.Shih Thomas S.Edwards Shaun A.Nguyen Zachary M.Soler Rodney j.Schlosser Department of Otolaryngology‐Head and Neck Surgery Medical University of South CarolinaCharlestonSouth CarolinaUSA

Trigeminal-specific stimulants have been shown to activate different receptors preferentially and this likely accounts for variation in sensory *** is unclear whether trigeminal sensitivity is similar across different transient receptor potential(TRP)receptors or if dysfunction of different receptors results in differing patient ***,a prospective cohort study was conducted,consisting of trigeminal lateralization testing with three different stimulants(eucalyptol,isothiocyanate,acetic acid),olfaction testing with Sniffin'Sticks,and measurement of various patient‐reported outcome measures(PROMs).A total of 50 participants were enrolled across the olfactory *** TDI score was 27.1±8.3(range 7.0–39.5)with 38%normosmic and 62%*** trigeminal lateralization scores out of 20 in the overall cohort were 16.18(2.78)for eucalyptol,14.94(3.49)for mustard oil,and 15.28(3.68)for *** showed a significant correlation with threshold scores of Sniffin'Sticks.A significant correlation was found between acetic acid and various *** of the lateralization scores of the trigeminal stimulants correlated to each other significantly and there was no correlation to *** lack of correlation suggests that the measured sensitivity of one type of TRP receptor may not translate to similar sensitivity of the other *** investigations with TRPV1 and TRPA1 agonists are needed to corroborate our findings.

关键词： chemosensory olfaction trigeminal TRP receptor