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educational Videos Subtitles’Summarization Using Latent Dirichlet Allocation and Length enhancement

Computers, Materials & Continua 2022年第3期70卷 6205-6221页

作者： sarah S.Alrumiah Amal A.Al-Shargabi Department of Information Technology College of ComputerQassim UniversityBuraydah51452Saudi Arabia

Nowadays,people use online resources such as educational videos and ***,such videos and courses are mostly long and thus,summarizing them will be *** video contents(visual,audio,and subtitles)could be analyzed to generate textual summaries,i.e.,***’subtitles contain significant ***,summarizing subtitles is effective to concentrate on the necessary *** of the existing studies used Term Frequency-Inverse Document Frequency(TF-IDF)and Latent Semantic Analysis(LSA)models to create lectures’*** study takes another approach and applies LatentDirichlet Allocation(LDA),which proved its effectiveness in document ***,the proposed LDA summarization model follows three *** first phase aims to prepare the subtitle file for modelling by performing some preprocessing steps,such as removing stop *** the second phase,the LDA model is trained on subtitles to generate the keywords list used to extract important *** in the third phase,a summary is generated based on the keywords *** generated summaries by LDA were lengthy;thus,a length enhancement method has been *** the evaluation,the authors developed manual summaries of the existing“eDUVSUM”educational videos *** authors compared the generated summaries with the manual-generated outlines using two methods,(i)Recall-Oriented Understudy for Gisting evaluation(ROUGe)and(ii)human *** performance of LDA-based generated summaries outperforms the summaries generated by TF-IDF and *** reducing the summaries’length,the proposed length enhancement method did improve the summaries’precision *** domains,such as news videos,can apply the proposed method for video summarization.

关键词： Subtitle summarization educational videos topic modelling LDA extractive summarization

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纯相和镍取代的Co_3O_4尖晶石催化剂用于N_2O直接分解(英文)

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催化学报 2014年第7期35卷 1105-1112页

作者： Bahaa M.Abu-Zied Soliman A.Soliman sarah e.Abdellah Chemistry Department Faculty of ScienceAssiut University

A series of NixCo1-xCo2O4(0 ≤ x ≤ 1) spinel catalysts were prepared by the co-precipitation method and used for direct N2O decomposition. The decomposition pathway of the parent precipitates was characterized by thermal analysis. The catalysts were calcined at 500 °C for 3 h and characterized by powder X-ray diffraction, Fourier transform infrared, and N2 adsorption-desorption. Nickel cobaltite spinel was formed in the solid state reaction between NiO and Co3O4. The N2O decomposition measurement revealed significant increase in the activity of Co3O4 spinel oxide catalyst with the partial replacement of Co2+ by Ni2+. The activity of this series of catalysts was controlled by the degree of Co2+ substitution by Ni2+, spinel crystallite size, catalyst surface area, presence of residual K+, and calcination temperature.

关键词：氧化物催化剂四氧化三钴尖晶石型直接分解 N2O 镍氧化亚氮二氧化碳

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Anticoagulation in frail older people

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Journal of Geriatric Cardiology 2019年第11期16卷 844-846页

作者： sarah Damanti Simon Braham Luca Pasina Geriatric Unit IRCCS Ca’Granda Ospedale Maggiore PoliclinicoMilanItaly Nutritional Sciences PhD Univeristy of MilanMilanItaly Angelo Bianchi Bonomi Hemophilia and Thrombosis Center IRCCS CàGranda Maggiore Hospital FoundationMilanItaly Pharmacotherapy and Appropriateness of Drug Prescription Unit Istituto Di Ricerche Farmacologiche Mario Negri IRCCSVia Giuseppe La MasaMilanItaly

Frailty is a multidimensional dynamic condition characterized by decreased physiological reserves. Therefore,frail people are more vulnerable to ***,minor stimuli,like a new drug prescription,can alter their homeostatic equilibrium determining adverse clinical outcomes(i.e.,falls,institutionalization,disability,and death).[1,2]Since the risk of atrial fibrillation[3]and venous thromboembolism[4]increase with ageing,frail people might require long term anticoagulation.

关键词： Anticoagulation Frailty The elderly

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Relationships between personality traits and the physiological stress response in a wild mammal

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Current Zoology 2020年第2期66卷 197-204页

作者： Francesca SANTICCHIA Lucas A.WAUTeRS Ben DANTZeR sarah e.WeSTRICK Nicola FeRRARI Claudia ROMeO Rupert PALMe Damiano G.PReATONI Adriano MARTINOLI Department of Theoretical and Applied Sciences Environment Analysis and Management Unit-Guido Tosi Research Group-Universita degli Studi dell'nsubriaVia J.H.Dunant 321100 VareseItly Department of Biology Evolutionary Ecology GroupUniversity of AntwerpUniversiteitsplein 12610 WilrijkBelgium Department of Psychology University of Michigan530 Church StreetAnn ArborMI 48109USA Department of ecology and evolutionary Biology University of Michigan830 North UniversityAnn ArborMI 48109USA Department of Veterinary Medicine Universita degli Studi di MilanoVia Celoria 1020133 MilanoItaly Centro di Ricerca Coordinata epidemiologia e Sorveglianza Molecolare delle Infezioni Universita degli Studi di MilanoMilanoItly Unit of Physiology Pathophysiology and Experimental EndocrinologyDepartment of Biomedical SciencesUniversity of Veterinary Medicine ViennaVeterinarplatz 11210 ViennaAustria

Glucocorticoids(GCs)are involved in the regulation of an animal's energetic *** stressful situations,they are part of the neuroendocrine response to cope with environmental *** react to aversive stimuli also through behavioral responses,defined as coping *** in captive and wild populations,individuals differ in their behavior along a proactive-reactive *** animals exhibit a bold,active explorative and social personality,whereas reactive ones areshy,less active-explorative and less ***,we test the hypothesis that personality traits and physiological responses to stressors covary,with more proactive individuals having a less pronounced GC stress *** wild populations of invasive gray squirrels Sciurus carolinensis,we measuredfecal glucocorticoid metabolites(FGMs),an integrated measure of circulating GCs,and 3 personality traits(activity,sociability,and exploration)derived from open field test(OFT)and mirror image stimulation(MIS)*** squirrels had higher FGMs in Autumn than in Winter and males with scrotal testes had higher FGMs than nonbreeding *** varied with body mass and population *** expressed more activity exploration at higher than at lower density and heavier squirrels had higher scores for activity exploration than animals that weighed *** in FGM concentrations was not correlated with the expression of the 3 personality ***,our results do not support a strong association between the behavioral and physiological stress responses but show that in wild populations,where animals experience varying environmental conditions,the GC endocrine response and the expression of personality are uncorrelated traits among individuals.

关键词： FGM concentration glucocorticoids HPA axis reactivity MCMCglmm personality-traits Sciurus carolinensis

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Relationship between parent perception of child anthropometric phenotype and body mass index change among children with developmental disabilities

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World Journal of Pediatrics 2021年第2期17卷 210-214页

作者： Lu-Yu Xie Folefac D.Atem Sari Bar Matthew Sunil Mathew Cynthia Lebron Catherina Chang Ruby Natale sarah e.Messiah University of Texas Health Science Center at Houston School of Public HealthDallas CampusDallasTXUSA Center for Pediatric Population Health UTHealth School of Public Health and Children's Health System of TexasDallasTXUSA Department of Pediatrics University of Texas Southwestern Medical CenterDallasTXUSA Department of Public Health Sciences University of MiamiMiamiFLUSA Nova Southeastern University DavieFLUSA Department of Pediatrics University of Miami Miller School of MedicineMiamiFLUSA

Background Preschool-age children with developmental disabilities(DD)have higher prevalence of obesity than children without *** study aimed to explore the relationship between parent perception of their children's anthropometric phe-notype and child body mass index(BMI)z score change over one school year among preschoolers with *** The analysis consisted of a subsample(N=64)of children with DD from a larger randomized controlled trial to test an obesity prevention program in the childcare center *** ranks their child's anthropometric phenotype on a visual silhouette chart on a scale from 1(underweight)to 7(obese)and that rank score is compared to their BMI z score change over one school *** The majority(75%)of parents with an obese child underestimated their child's anthropometric phenotype while 7%parents with a non-obese child *** overestimation of child anthropometric phenotype status is associated with increased BMI z score change over 1 school year among preschool-age children with *** Parental overestimation of child anthropometric phenotype status was associated with weight gain in preschool children with DD after one school year.

关键词： Anthropometric phenotype Children Developmental disabilities Obesity Weight perception

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Canadian children’s and youth’s adherence to the 24-h movement guidelines during the COVID-19 pandemic: A decision tree analysis

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Journal of Sport and Health Science 2020年第4期9卷 313-321页

作者： Michelle D.Guerrero Leigh M.Vanderloo Ryan e.Rhodes Guy Faulkner sarah A.Moore Mark S.Tremblay Children’s Hospital of eastern Ontario Research Institute OttawaON K1H 8L1Canada ParticipACTION TorontoON M5S 1M2Canada Child Health and evaluative Sciences Hospital for Sick ChildrenTorontoON M5G 0A4Canada Behavioral Medicine Laboratory School of Exercise SciencePhysical and Health EducationUniversity of VictoriaVictoriaBC V8W 2Y2Canada School of Kinesiology University of British ColumbiaVancouverBC V6T 1Z1Canada Department of Therapeutic Recreation Faculty of ChildFamilyand Community StudiesDouglas CollegeCoquitlamBC V3B 7X3Canada School of Health and Human Performance Dalhousie UniversityHalifaxNS B3H 4R2Canada Department of Pediatrics University of OttawaOttawaON K1H 8L1Canada

Purpose:The purpose of this study was to use decision tree modeling to generate profiles of children and youth who were more and less likely to meet the Canadian 24-h movement guidelines during the coronavirus disease-2019(COVID-19)***:Data for this study were from a nationally representative sample of 1472 Canadian parents(Meanage=45.12,SD=7.55)of children(511 years old)or youth(1217 years old).Data were collected in April 2020 via an online *** items assessed demographic,behavioral,social,micro-environmental,and macro-environmental *** decision trees of adherence and non-adherence to all movement recommendations combined and each individual movement recommendation(physical activity(PA),screen time,and sleep)were ***:Results revealed specific combinations of adherence and non-adherence *** associated with adherence to the recommendation(s)included high parental perceived capability to restrict screen time,annual household income ofCAD 100,000,increases in children’s and youth’s outdoor PA/sport since the COVID-19 outbreak began,being a boy,having parents younger than 43 years old,and small increases in children’s and youth’s sleep duration since the COVID-19 outbreak *** associated with non-adherence to the recommendation(s)included low parental perceived capability to restrict screen time,youth aged 1217 years,decreases in children’s and youth’s outdoor PA/sport since the COVID-19 outbreak began,primary residences located in all provinces except Quebec,low parental perceived capability to support children’s and youth’s sleep and PA,and annual household income ofCAD 99,***:Our results show that specific characteristics interact to contribute to(non)adherence to the movement behavior *** highlight the importance of targeting parents’perceived capability for the promotion of children’s and youth’s movement behaviors during challengin

关键词： Decision tree analysis Parental perceived capability Physical activity Screen time Sleep

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Update of Meat Standards Australia and the cuts based grading scheme for beef and sheepmeat

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Journal of Integrative Agriculture 2018年第7期17卷 1641-1654页

作者： sarah P.F.Bonny Rachel A.O'Reilly David W.Pethick Graham e.Gardner Jean-Francois Hocquette Liselotte Pannier School of Veterinary and Life Sciences Murdoch UniversityMurdochWA 6150Australia Clermont Université INRAVetAgro SupUMR1213Recherches sur les HerbivoresSaint-Genes Champanelle F-63122France

Changing markets and evolving consumer demand present new challenges for the beef and sheep industries. In response, the industry has been investing in innovations to deliver new products and management systems to consumers. One such innovation is the Meat Standards Australia（MSA） system. This system is a Total Quality Management System, aimed at delivering an eating quality guarantee to consumers, and through this adding value to the entire supply chain. At present, it is well developed for beef and still evolving for sheepmeat. MSA has identified Critical Control Points（CCPs） in the production, pre-slaughter, processing and value-adding aspects of the supply chain that impact on consumer palatability through the large-scale taste testing of meat by untrained consumers. These CCPs are used as either（1） mandatory criteria determining eligibility for grading, and（2） inputs in a model predicting the palatability of individual combinations of muscle and different cooking methods. Through the prediction of palatability, MSA increases consumer satisfaction and is used to provide assurance for branded products and new marketing innovations in Australia and internationally. This has added significant value to the Australian beef industry, with several retail examples demonstrating consumer willingness to pay more for premium quality beef and sheepmeat products based on the MSA grading scores. This price differential at retail allows the value of the carcass to be calculated based on the eating quality as well as the volume produced, thereby delivering a financial reward for farmers producing high quality carcasses. The continuous quality scale of MSA allows producers to realise the financial gain of incremental improvements in quality, as well as the precise economic weights associated with traits such as marbling, ossification score, or breed. The use of MSA in this fashion has underpinned a new and innovative supply chain where the pricing is transparent and allows produ

关键词： eating quality consumer beef sheep Meat Standards Australia international cut

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Bi-material strip based temperature sensor design and optimization through thermo-mechanical multi-physics modeling

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International Journal of Smart and Nano Materials 2019年第1期10卷 1-10,I0001页

作者： Baobao Tang sarah Kathryn Collings Hai Xiao Huijuan Zhao Department of Mechanical engineering Clemson UniversityClemsonSCUSA Holcombe Department of electrical and Computer engineering Clemson UniversityClemsonSCUSA

With the capability of additive manufacturing,complex structures are easily fabricated to achieve various design *** this work,a bi-material strip temperature sensor with complex periodic pattern design is purposed and investigated through both the analytical modeling and multi-physics finite element *** design patterns are considered:standard,e-shape and *** the standard solid strip design,the curvature of the bi-material strip under temperature variation is in a linear relationship with the coefficient of thermal expansion(CTe)difference,but in a reciprocal relationship with the strip *** curvature of the bi-material strip depends on the Young’s modulus ratio and layer thickness ratio of the two materials,but is independent of the magnitude of the materials’Young’s *** on analytical derivation and numerical validation,the optimized design parameters can be *** to S-shape pattern design,e-shape pattern design can significantly increase the temperature sensitivity of the bi-material *** analytical prediction of the e-shape pattern’s temperature sensitivity is introduced and *** work proves the concept that new design space becomes available with the capability of additive manufacturing,and provides the general design guideline for a bi-material strip based temperature sensor with possible design patterns.

关键词： Bi-material temperature sensing optimization finite element analysis

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Uncoupling protein 2 deficiency reduces proliferative capacity of murine pancreatic stellate cells

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Hepatobiliary & Pancreatic Diseases International 2016年第6期15卷 647-654页

作者： sarah Muller Sandra Maria Klingbeil Andreea Sandica Robert Jaster Department of Medicine II Division of Gastroen-terologyRostock University Medical CenterE.-Heydemann-Str.618057 RostockGermany

BACKGROUND： Uncoupling protein 2 （UCP2） has been suggested to inhibit mitochondrial production of reactive oxygen species （ROS） by decreasing the mitochondrial membrane potential. experimental acute pancreatitis is associated with increased UCP2 expression, whereas UCP2 deficiency retards regeneration of aged mice from acute pancreatitis. Here, we have addressed biological and molecular functions of UCP2 in pancreatic stellate cells （PSCs）, which are involved in pancreatic wound repair and fibrogenesis. MeTHODS： PSCs were isolated from 12 months old （aged） UCP2^-/- mice and animals of the wild-type （WT） strain C57BL/6. Proliferation and cell death were assessed by em- ploying trypan blue staining and a 5-bromo-2＇-deoxyuridine incorporation assay. Intracellular fat droplets were visualized by oil red O staining. Levels of mRNA were determined by RT-PCR, while protein expression was analyzed by immunoblotting and immunofluorescence analysis. Intracellular ROS levels were measured with 2＇,7＇-dichlorofluorescin diacetate. expression of senescence-associated β-galactosidase （SA β-Gal） was used as a surrogate marker of cellular senescence. ReSULTS： PSCs derived from UCP2^-/- mice proliferated at a lower rate than cells from WT mice. In agreement with this observation, the UCP2 inhibitor genipin displayed dose- dependent inhibitory effects on WT PSC growth. Interestingly, ROS levels in PSCs did not differ between the two strains, and PSCs derived from UCP2^-/- mice did not senesce faster than those from corresponding WT cells. PSCs from UCP2^-/- mice and WT animals were also indistinguishable with respect to the activation-dependent loss of intracellular fat droplets, expression of the activation marker α-smooth muscle actin, type I collagen and the autocrine/paracrine mediators interleukin-6 and transforming growth factor-I~ 1. CONCLUSIONS： A reduced proliferative capacity of PSC from aged UCP2^-/- mice may contribute to the retarded regeneration after acute pancreatitis.

关键词： pancreatitis proliferation stellate cell biology uncoupling protein 2

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Microbial community coalescence and nitrogen cycling in simulated mortality decomposition hotspots

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ecological Processes 2023年第1期12卷 608-624页

作者： sarah W.Keenan Alexandra L.emmons Jennifer M.DeBruyn Department of Geology and Geological engineering South Dakota School of Mines and Technology501 East St.Joseph StreetRapidSD 57701USA Department of Anthropology University of TennesseeKnoxvilleTNUSA Department of Biosystems engineering and Soil Science University of Tennessee2506 E.J.Chapman DriveKnoxvilleTN 37996USA

Background The pulsed introduction of dead plant and animal material into soils represents one of the primary mechanisms for returning organic carbon(C)and nitrogen(N)compounds to biogeochemical *** of animal carcasses provides a high C and N resource that stimulates indigenous environmental microbial communities and introduces non-indigenous,carcass-derived microbes to the ***,the dynamics of the coalesced microbial communities,and the relative contributions of environment-and carcass-derived microbes to C and N cycling are *** test whether environment-derived,carcass-derived,or the combined microbial communities exhibited a greater influence on C and N cycling,we conducted controlled laboratory experiments that combined carcass decomposition fluids and soils to simulate carcass decomposition *** selectively sterilized the decomposition fluid and/or soil to remove microbial communities and create different combinations of environment-and carcass-derived communities and incubated the treatments under three temperatures(10,20,and 30℃).Results Carcass-derived bacteria persisted in soils in our simulated decomposition scenarios,albeit at low *** communities had higher respiration rates at 10 and 30℃ compared to soil or carcass communities ***,at higher temperatures,mixed communities had reduced diversity,but higher respiration,suggesting functional *** communities treatments also provided evidence that carcass-associated microbes may be contributing to ammonification and denitrification,but that nitrification is still primarily carried out by native soil *** Our work yields insight into the dynamics of microbial communities that are coalescing during carcass decomposition,and how they contribute to recycling carcasses in terrestrial ecosystems.

关键词： Carcass decomposition Microcosm Nitrogen Carbon Biogeochemical cycling Coalescence

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