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Frontiers of structural and Civil Engineering 2014年第1期8卷 36-45页

作者： Mahdi AREZOUMANDI mark EZZELL Jeffery s VOLZ Department of Civil Architectural and Environmental Engineering Missouri University of Science and Technology Missouri MO 65409 USA U s Army Corps of Engineers 1222 Spruce St. St. Louis Missouri MO 63103 USA school of Civil Engineering and Environmental science University of Oklahoma Norman OK 73019-1024 USA

This study presents the results of an experimental investigation that compares the mechanical properties, fracture behavior, creep, and shrinkage of a chemically-based self-consolidating concrete （sCC） mix with that of a corresponding conventional concrete （CC） mix. The CC and sCC mix designs followed conventional proportioning in terms of aggregate type and content, cement content, air content, water-cementitiuos materials （w/cm） ratio, and workability. Then, using only chemical admixtures, the authors converted the CC mix to an sCC mix with all of the necessary passing, filling, flowability, and stability requirements typically found in sCC. The high fluidity was achieved with a polycarboxylate-based high-range water-reducing admixture, while the enhanced stability was accomplished with an organic, polymer-based viscosity-modifying admixture. The comparison indicated that the sCC and CC mixes had virtually identical tensile splitting strengths, flexural strengths, creep, and shrinkage. However, the sCC mix showed higher compressive strengths and fracture energies than the corresponding CC mix.

关键词： admixture conventional concrete (CC) creep fracture mechanic mechanical Properties self-consolidatingconcrete (sCC) shrinkage

Predicting excavation damage zone depths in brittle rocks

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Journal of Rock Mechanics and Geotechnical Engineering 2016年第1期8卷 60-74页

作者： Matthew A.Perras mark s.Diederichs Queen’s University Miller Hall36 Union StreetKingstonOntarioK7L 3N6Canada swiss Federal Institute of Technology Sonneggstrasse 5ZurichCH-8092Switzerland

During the construction of an underground excavation, damage occurs in the surrounding rock mass due in large part to stress changes. While the predicted damage extent impacts profile selection and support design, the depth of damage is a critical aspect for the design of permeability sensitive excavations, such as a deep geological repository(DGR) for nuclear waste. Review of literature regarding the depth of excavation damage zones(EDZs) indicates three zones are common and typically related to stress induced damage. Based on past developments related to brittle damage prediction using continuum modelling, the depth of the EDZs has been examined numerically. One method to capture stress induced damage in conventional engineering software is the damage initiation and spalling limit(DIsL) approach. The variability of depths predicted using the DIsL approach has been evaluated and guidelines are suggested for determining the depth of the EDZs around circular excavations in brittle rock masses. Of the inputs evaluated, it was found that the tensile strength produces the greatest variation in the depth of the EDZs. The results were evaluated statistically to determine the best fit relation between the model inputs and the depth of the EDZs. The best correlation and least variation were found for the outer EDZ and the highly damaged zone(HDZ) showed the greatest variation. Predictive equations for different EDZs have been suggested and the maximum numerical EDZ depths, represented by the 68% prediction interval, agreed well with the empirical evidence. This suggests that the numerical limits can be used for preliminary depth prediction of the EDZs in brittle rock for circular excavations.

关键词： Excavation damage zones(EDZs) Deep geological repository(DGR) Empirical depth prediction Numerical depth prediction Damage depth sensitivity Damage initiation and spalling limit(DIsL)

Robotics-The answer to the Achilles' heel of VATs pulmonary resection

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Chinese Journal of Cancer Research 2012年第4期24卷 259-260页

作者： mark R.Dylewski Richard s.Lazzaro Thoracic and Robotic surgery Baptist Health of South FloridaFlorida33143USA Chief Division of Thoracic SurgeryLenox Hill HospitalNorth Shore LIJ Health SystemNYUSA

During the past decade, robotic surgical systems have been increasingly utilized to perform highly complex surgical procedures. In fact, the robotic-assisted approach to the treatment of many gynecological and urological surgical procedures has become the standard-of-care. The use of robotic surgical system in thoracic surgery is in its early development. Video-assisted thoracoscopic surgery （VATs） was propelled forward in the early 1990＇s without full appreciation for long-term consequences, increased cost or therapeutic benefit. The trend in robotic-assisted thoracic surgery is projected to surpass the adoption of VATs and to mirror that of other robotic surgical subspecialties.

关键词： LOBECTOMY

Montezuma's revenge-the sequel: The one-hundred year anniversary of the first description of “post-infectious” irritable bowel syndrome

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World Journal of Gastroenterology 2018年第45期24卷 5076-5080页

作者： mark s Riddle Patrick Connor Chad K Porter Department of Preventive Medicine and Biostatistics Uniformed Services University Military Enteric Disease Group Department of Military Medicine Royal Centre for Defence Medicine Birmingham Research Park Department of Enteric Diseases Naval Medical Research Center

One-hundred years have passed since the original description of the commonly described phenomenon of persistent abdominal symptoms being triggered by an acute enteric infection. This first account was generated out of astute observations by sir Arthur Hurst in World War I. Additional descriptions followed from military and non-military practitioners adding the evidence which has transitioned this recognized condition from association to causation. While mechanistic understanding is an area of active pursuit, this historical accounting of a centuries progress highlights important advances and contributions of military medicine and scientists to advances benefiting global populations.

关键词： Post-infectious irritable bowel syndrome Medical history Military medicine Gastroenteritis Travelers’diarrhea Functional gastrointestinal disorder Bacterial diarrhea

Overlapping community detection combining content and link

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Journal of Zhejiang University-science C(Computers and Electronics) 2012年第11期13卷 828-839页

作者： Zhou-zhou HE Zhong-fei(mark)ZHANG Philip s.YU Zhejiang Provincial Key Laboratory of Information Network Technology Department of Information Science and Electronic EngineeringZhejiang UniversityHangzhou 310027China Department of Computer science University of Illinois at ChicagoIL 60607USA

In classic community detection, it is assumed that communities are exclusive, in the sense of either soft clustering or hard clustering. It has come to attention in the recent literature that many real-world problems violate this assumption, and thus overlapping community detection has become a hot research topic. The existing work on this topic uses either content or link information, but not both of them. In this paper, we deal with the issue of overlapping community detection by combining content and link information. We develop an effective solution called subgraph overlapping clustering (sOC) and evaluate this new approach in comparison with several peer methods in the literature that use either content or link information. The evaluations demonstrate the effectiveness and promise of sOC in dealing with large scale real datasets.

关键词： Overlapping Content Link Community detection

Alternatives for large-scale production of cultured beef: A review

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Journal of Integrative Agriculture 2015年第2期14卷 208-216页

作者： Matilda s M Moritz sanne E L Verbruggen mark J Post Department of Physiology Maastricht UniversityMaastricht 6229 ER The Netherlands Department of Physics Chemistry and Biology Linkping UniversityLinkping SE-581 83 Sweden

Cultured beef is a method where stem cells from skeletal muscle of cows are cultured in vitro to gain edible muscle tissue. For large-scale production of cultured beef, the culture technique needs to become more efficient than today＇s 2-dimensional（2D） standard technique that was used to make the first cultured hamburger. Options for efficient large-scale production of stem cells are to culture cells on microcarriers, either in suspension or in a packed bed bioreactor, or to culture aggregated cells in suspension. We discuss the pros and cons of these systems as well as the possibilities to use the systems for tissue culture. Either of the production systems needs to be optimized to achieve an efficient production of cultured beef. It is anticipated that the optimization of large-scale cell culture as performed for other stem cells can be translated into successful protocols for bovine satellite cells resulting in resource and cost efficient cultured beef.

关键词： cultured beef microcarriers aggregated cells packed bed bioreactor cell culture

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 weres 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

Human Bite mark: A Digital Analytical Pilot study

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Journal of Forensic science and Medicine 2024年第3期10卷 184-190页

作者： Nidhi susan suresh Jigna s shah Department of Oral Medicine and Radiology Government Dental College and HospitalAhmedabadGujaratIndia

Background:Bite mark identification is based on the individuality of a dentition and helps in identifying the *** use of three-dimensional(3D)analysis of forensic evidence is highlighted in comparison with traditional *** has been used in registering bite mark on food *** our knowledge this is the first study where CBCT is used to register bite mark from human *** and Objective:To signify the potential of CBCT in registering and analysing the bite mark on human skin and to analyse various identifying *** and Method:60 subjects of either sex were asked to bite their own forearm and alginate impression of the maxillary and mandible dentition was taken and cast was *** bitemark and cast was subjected to CBCT scanning and parameters like arch shape,inter canine width,mesio distal dimension of anterior teeth,and individual characteristics like rotation,buccal/lingual tilting of teeth was noted and compared and assigned a score using simplified version ofABFO scoring ***:Highly significant result with 56.6%definite match,26.66%probable match and 16.66%possible match were obtained using ***:CBCT is a non-destructive,accurate,efficient,objective and reproducible *** of all parameter mesio-distal dimension of teeth is the best parameter to judge the bitemark on skin.

关键词： Arch shape bite mark buccal/lingual tilting cone-beam computed tomography intercanine distance mesiodistal dimension rotation

Evolution of interventional endoscopic ultrasound

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Gastroenterology Report 2023年第1期11卷 131-139页

作者： mark J.Radlinski Daniel s.strand Vanessa M.shami Division of Gastroenterology and Hepatology University of VirginiaCharlottesvilleVAUSA

Endoscopic ultrasound(EUs)has become an indispensable modality for the assessment of the gastrointestinal tract and adjacent structures since its origin in the *** the development of the linear echoendoscope,EUs has evolved from a purely diagnostic modality to a sophisticated tool for intervention,with numerous luminal,pancreaticobiliary,and hepatic ***,these applications may be subdivided into three categories:transluminal drainage or access procedures,injection therapy,and EUs-guided liver *** drainage or access procedures include management of pancreatic fluid collection,EUs-guided biliary drainage,EUs-guided bile duct drainage,EUs-guided pancreatic duct drainage,and enteral anastomosis *** therapies include therapeutic EUs-guided injections for management of malignancies accessible by ***-guided liver applications include EUs-guided liver biopsy,EUs-guided portal pressure gradient measurement,and EUs-guided vascular *** this review,we discuss the origins of each of these EUs applications,evolution of techniques leading to the current status,and future directions of EUs-guided interventional therapy.

关键词： endoscopic ultrasound interventional endoscopic ultrasound biliary drainage gastrojejunostomy pancreatic pseudocyst drainage

Jejunoileal bypass:A surgery of the past and a review of its complications

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World Journal of Gastroenterology 2009年第18期15卷 2277-2279页

作者： Dushyant singh Alexandra s Laya Wendell K Clarkston mark J Allen Department of Gastroenterology and Hepatology University of Missouri Kansas CityKansas City MO 64111United States

Jejunoileal bypass(JIB),popular in the 1960s and 1970s,had remarkable success in achieving weight loss by creating a surgical short bowel *** patient had an unusual case of liver disease and provided no history of prior bariatric ***,it was recognized that he had a JIB in the 1970s,which was also responsible for the gamut of his *** with JIB are often not recognized,as they died of complications,or underwent reversal of their surgery or a liver-kidney *** identification with prompt reversal,and the recognition and treatment of the life-threatening consequences play a critical role in the management of such patients.

关键词： Jejunoileal bypass Bariatric surgery Weightloss Obesity Morbid obesity