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Factors and expectations influencing concussion disclosure within NCAA DivisionⅠathletes:A mixed methodological approach

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Journal of Sport and Health Science 2023年第3期12卷 388-397页

作者： melissa C.Kay Heidi Hennink-Kaminski Zachary Y.Kerr Paula Gildner Brittany m.Ingram Kenneth L.cameron megan N.Houston Laura A.Linnan Stephen W.marshall Karen Y.Peck Johna K.Register-mihalik School of Health Professions College of Nursing and Health ProfessionsUniversity of Southern MississippiHattiesburgMS 39406USA School of media and Journalism University of North Carolina at Chapel HillChapel HillNC 27599USA Injury Prevention Research Center University of North Carolina at Chapel HillChapel HillNC 27599USA Department of Exercise and Sport Science College of Arts and SciencesUniversity of North Carolina at Chapel HillChapel HillNC 27599USA matthew Gfeller Sport-Related Traumatic Brain Injury Research Center University of North Carolina at Chapel HillChapel HillNC 27599USA Center for the Study of Retired Athletes University of North Carolina at Chapel HillChapel HillNC 27599USA Keller Army Hospital United States Military AcademyWest PointNY 10996USA Departments of Physical medicine and Rehabilitation and Surgery Uniformed Services University of the Health SciencesBethesdaMD 20814USA Department of Health Behavior School of Public HealthUniversity of North Carolina at Chapel HillChapel HillNC 27599USA Department of Epidemiology School of Public HealthUniversity of North Carolina at Chapel HillChapel HillNC 27599USA

Background:Participation in sports is associated with many benefits to all aspects of health;however,it also comes with the risk of injury,particularly ***-disclosure and care seeking following a concussion are especially important because of the lack of outwardly visible signs and/or *** recent research has explored factors affecting concussion disclosure,use of isolated methodologies limits the ability to contextualize how disclosure or nondisclosure ***,the purpose of this study was to describe the factors and expectations of National Collegiate Athletic Association(NCAA)athletes that may influence concussion ***:This mixed-methods convergent parallel research study included 25 NCAA Division I athletes representing 13 sports,all of whom completed a concussion-education session with pre-/post-test surveys and a semistructured *** athletes were at least 18 years old and on an NCAA *** surveys focused on previous concussion-related disclosure behaviors,knowledge,attitudes,beliefs,norms,and intentions about disclosing *** focused on the athletes’experiences related to concussion *** data were analyzed using descriptive statistics and mann-Whitney U *** were analyzed using a Consensual Qualitative Research ***:Participants had good concussion knowledge(median=46.0),positive attitudes(median=38.0),strong beliefs(median=13.0),and strong intentions to disclose concussion symptoms(median=7.0).None of the constructs differed by participants’*** quantitative findings were mostly positive,interview data highlighted factors that may explain why some participants are successful in disclosing concussions and why others may find disclosure *** efforts,sport culture,and medical professional presence were the primary facilitators discussed by ***,pressure,and a lack of team support were perceived as di

关键词： Education medical professional presence mixed methodological research Reporting Sport culture

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Heart rate is an independent predictor of all-cause mortality in individuals with type 2 diabetes: The diabetes heart study

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World Journal of Diabetes 2018年第1期9卷 33-39页

作者： Sameer Prasada cameron Oswalt Phyllis Yeboah Georgia Saylor Donald Bowden Joseph Yeboah Department of medical School (medical students) Wake Forest University Department of Internal medicine Wake Forest Baptist Health Department of Heart and Vascular Center of Excellence Wake Forest Baptist Health Department of Biochemistry Genomics and Personalized Medicine Research Wake Forest University

AIm To assess the association of resting heart rate with allcause and cardiovascular disease(CVD) mortality in the Diabetes Heart Study(DHS).mETHODS Out of a total of 1443 participants recruited into the DHS, 1315 participants with type 2 diabetes who were free of atrial fibrillation and supraventricular tachycardia during the baseline exam were included in this analysis. Heart rate was collected from baseline resting electrocardiogram and mortality(all-cause and CVD) was obtained from state and national death registry. Kaplan-meier(K-m) and Cox proportional hazard analyses were used to assess the *** The mean age, body mass index(BmI) and systolic blood pressure(SBP) of the cohort were 61.4 ± 9.2 years, 32.0 ± 6.6 kg/m2, and 139.4 ± 19.4 mmHg respectively. Fiftysix percent were females, 85% were whites, 15% were blacks, 18% were smokers. The mean ± SD heart rate was 69.8(11.9) beats per minute(bpm). After a median follow-up time of 8.5 years(maxim.m.follow-up time is 14.0 years), 258 participants were deceased. In K-m analysis, participants with heart rate above the median had a significantly higher event rate compared with those below the median(log-rank P = 0.0223). A one standard deviation increase in heart rate was associated with allcause mortality in unadjusted(hazard ratio 1.16, 95%CI: 1.03-1.31) and adjusted(hazard ratio 1.20, 95%CI: 1.05-1.37) models. Similar results were obtained with CVD mortality as the outcome of *** Heart rate is an independent predictor of all-cause mortality in this population with type 2 diabetes. In this study, a 1-SD increase in heart rate was associated with a 20% increase in risk suggesting that additional prognostic information may be gleaned from this ubiquitously collected vital sign.

关键词： Diabetes mellitus mortality Resting heart rate Prevention

miR-200 family expression is downregulated upon neoplastic progression of Barrett's esophagus

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World Journal of Gastroenterology 2011年第8期17卷 1036-1044页

作者： cameron m Smith David I Watson mary P Leong George C mayne michael Z michael Bas PL Wijnhoven Damian J Hussey Department of Surgery Flinders University Bedford Park Department of Gastroenterology and Hepatology Flinders University Bedford Park Department of Surgery Erasmus Medical Centre

AIm: To investigate miR-200 family expression in Barrett's epithelium, gastric and duodenal epithelia, and esophageal adenocarcinoma. mETHODS: Real-time reverse transcriptase-polymerase chain reaction was used to measure miR-200, ZEB1 and ZEB2 expression. Ingenuity Pathway Analysis of miR-200 targets was used to predict biological outcomes. RESULTS: Barrett's epithelium expressed lower levels of miR-141 and miR-200c than did gastric and duodenal epithelia (P miR-200 family in molecular pathways that distinguish Barrett's epithelium from gastric and duodenalepithelia, and which control apoptosis and proliferation. All miR-200 m.m.ers were downregulated in adenocarcinoma (P miR-200c expression was also downregulated in non-invasive epithelium adjacent to adenocarcinoma (P miR-200 m.m.ers was lower in Barrett's epithelium derived high-grade dysplastic cell lines than in a cell line derived from benign Barrett's epithelium. We observed signif icant inverse correlations between miR-200 family expression and ZEB1 and ZEB2 expression in Barrett's epithelium and esophageal adenocarcinoma (P miR-200 expression might contribute to the anti-apoptotic and proliferative phenotype of Barrett's epithelium and regulate key neoplastic processes in this epithelium.

关键词： miRNA Barrett’s esophagus Esophageal adenocarcinoma miR-200 Epithelial to mesenchymal transition Apoptosis Proliferation Epithelium

罗布河岸铁业联合公司西澳大利亚拉姆伯特角球团厂

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烧结球团 1983年第4期 86-87页

作者： P.m.cameron 澳

前言罗布河(Robe River)铁业联合公司在西澳大利亚的拉姆特角(Cape lambert)经营了一座球团厂(照片1略),处理罗布河流域开采的针铁矿。矿山离球团厂167公里。供应的铁矿石的含铁量平均为57%。图3为总流程。

关键词：球团厂钢铁厂球团矿人造富矿生球造球制粒西澳大利亚球磨机磨矿机铁业干燥炉拉姆

源于深部韧性剪切带中氧化变质作用的金:初步模式

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世界地质 1992年第4期11卷 97-102页

作者： Eion m cameron 纪瑛瑛

石英-碳酸盐金矿床赋存在剪切带中脆性-韧性转换处或在其上。据知有些最大的矿床就是沿着长期活动的主横推剪切带形成的。由于岩石的稠度随深度而降低,这种类型的剪切带向下在韧性态中加宽,有的韧性剪切带在麻粒岩相变质作用的深度宽达4... 详细信息

石英-碳酸盐金矿床赋存在剪切带中脆性-韧性转换处或在其上。据知有些最大的矿床就是沿着长期活动的主横推剪切带形成的。由于岩石的稠度随深度而降低,这种类型的剪切带向下在韧性态中加宽,有的韧性剪切带在麻粒岩相变质作用的深度宽达40km。韧性剪切带是可渗透的,并由于可渗性是沿微裂隙发育,所以水流遍布,为广泛的化学反应提供了机会。反应速率随剪切加热、矿物变形诱发的应力梯度、和粒度的减小而增加。因为压力在剪切带的脆性部分降低,水流往往是向上的。假设韧性剪切带为楔形体,穿过下地壳的大量流体就会聚集在脆性-韧性带的转换处。因此,如果在穿过下地壳的流体运动期间存在着选择迁移元素的作用,那么这些元素也可聚集在这个转换处。石英-碳酸盐矿脉最恒定的特征之一是碳酸盐蚀变,它可从矿床的中部向外延伸数公里。这里的^(13)C特征与幔源CO_2一致。可能来源于地幔并向上运动的CO_2气化物与角闪岩相岩石脱水成为麻粒岩及伴随的大离子亲岩元素的衰竭有关。有大量资料表明下地壳被CO_2改变的情况发生在主剪切带。在深部CO_2的流动仅发生在比石墨稳定性所需环境更为氧化的条件下。这种环境利于金的溶解,因为:(a) 使Au°氧化为Au^+;(b) 从岩石中溶出的硫化物和Au+络合。近期工作已经证明有些主要的太古代金矿床的成矿物质来源干相对氧化的流体中。初步模式的概述至少要考虑某些石英-碳酸盐金矿床的成因。渗入到深部韧性剪切带的CO_2使角闪岩相岩石脱水。产生了相对氧化的CO_2—H_2O流体,这个流体使来自下地壳的大量硫化物和金溶解。金被向上带到变窄的剪切处,聚集并沉淀在脆性-韧性转换处。

关键词：剪切带氧化变质作用金矿床

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Different types of mechanical complications after surgical correction of adult spine deformity with osteotomy

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World Journal of meta-Analysis 2017年第6期5卷 132-149页

作者： cameron Barton Andriy Noshchenko Vikas V Patel Christopher m J Cain Christopher Kleck Evalina L Burger Department of Orthopedics and Rehabilitation University of Iowa Department of Orthopedics University of ColoradoAnschutz Medical Campus

AIm To determine the incidence and risk factors for mechanical complications （mC） after surgical correction of adult spinal deformity （ASD） with *** retrospective study was performed. Inclusion criteria： Surgical correction of ASD using osteotomy; male or female; 〉 20 years old; follow-up ≥ 24 mo or revision. The mC of spine and spinal instrumentation were studied separately. Risk analysis included assessment of the association between more than 50 different characteristics （demographic, clinical, radiographic, and instrumentation） with different types of *** medical records of 94 operations in 88 subjects were analyzed： Female （68%）, mean age 58.6 （SD, 12.7） years. Cumulative incidence of mC at 2 year follow-up was 43.6%. Of these, 78% required revision （ P 〈 0.001）. The following characteristics had significant （ P ≤ 0.05） association with mC：（1） Preoperative： osteoporosis, smoking, previous spinal operation, sagittal vertical axis （SVA）〉 100 mm, lumbar lordosis （LL）〈 34°; （2） postoperative： SVA 〉 75 mm; operative correction： SVA 〉 75 mm, LL 〉 30°, thoracic kyphosis 〉 25°, and pelvic tilt 〉 9°; a fall; pseudarthrosis; and （3） device and surgical technique： use of previously implanted instrumentation; use of domino and/or parallel connectors; type of osteotomy （PSO vs SPO） if preoperative SVA 〈 100 mm; lumbar osteotomy location; in-situ rod contouring 〉 60°; and fxation to sacrum/*** of mC after surgical correction of ASD is substantial. To decrease this risk over- and/or insuffcient correction of the sagittal imbalance should be avoided.

关键词： Adult spinal deformity Osteotomy Risk factors mechanical complications

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元古代铁建造的成因:硫同位素证据

华北地质 1985年第1期 101-106页

作者： E.m.cameron 骆辉

引言前寒武巨大的条带状铁建造成因争论了一百多年,特别重要的是铁和硅的来源,意见的分岐出现在火山成因和陆地风化来源之间。与太古代铁建造相比,由于下元古代铁建造经常缺少密切共生的火山岩,所以,下元古代铁建造的成因争论最激烈。... 详细信息

引言前寒武巨大的条带状铁建造成因争论了一百多年,特别重要的是铁和硅的来源,意见的分岐出现在火山成因和陆地风化来源之间。与太古代铁建造相比,由于下元古代铁建造经常缺少密切共生的火山岩,所以,下元古代铁建造的成因争论最激烈。主要元古代铁建造大致有相类似的年龄,即19亿年到22亿年。这点就促进了与大气和生物演化有关的成矿模式的发展。

关键词：硫同位素海水硫化物硫化合物碳质页岩生物成因有机成因硫酸盐同位素分布地层单元

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组织变革与发展：对未来研究的挑战

管理世界 2010年第11期26卷 154-165页

作者： Andrew m.Pettigrew Richard W.Woodman Kim S.cameron 高静美李宇英国沃里克大学沃里克商业学院德克萨斯农工大学美国密歇根大学Ross商业学院东北财经大学工商管理学院

组织变革与组织发展研究是社会科学领域中的一个重大课题。对于人类和自然系统的诞生、发展、转变、衰退和消亡等一系列问题，社会科学和自然科学的众多学科已经形成了大量的理论研究和实证检验成果。

关键词：变革与发展组织社会科学领域自然系统实证检验自然科学多学科

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Effect of 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide and N-hydroxysuccinimide concentrations on the mechanical and biological characteristics of cross-linked collagen fibres for tendon repair

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Regenerative Biomaterials 2015年第2期2卷 77-85页

作者： Zafar Ahmad Jennifer H.Shepherd David V.Shepherd Siddhartha Ghose Simon J.Kew Ruth E.cameron Serena m.Best Roger A.Brooks John Wardale Neil Rushton Orthopaedic Research Unit Department of Surgery University of CambridgeAddenbrooke’s HospitalCambridgeCB20QQUK Department of materials Science and metallurgy University of CambridgeCambridgeCB30FSUK Tigenix Ltd CambridgeCB40FYUK

Reconstituted type I collagen fibres have received considerable interest as tendon implant materials due to their chemical and structural similarity to the native *** produced through a semi-continuous extrusion process were cross-linked with different concentrations of the zerolength cross-linker 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide(EDC)in combination with N-hydroxysuccinimide(NHS).Tensile properties of the fibres were considered,along with imaging of both surface structure and fibrillar *** of the fibres to bacterial collagenase was investigated and fibre sections seeded with human tendon cells for biological characterization,including cell adhesion and *** work clearly demonstrated that whilst the concentration of EDC and NHS had no significant effect on the mechanics,a higher concentration was associated with higher collagenase resistance,but also provided a less attractive surface for cell adhesion and proliferation.A lower cross-linking concentration offered a more biocompatible material without reduction in mechanics and with a potentially more optimal degradability.

关键词： biopolymer scaffolds soft tissue