skeleton

骨架
  • 文章类型: Journal Article
    富马酸替诺福韦酯(TDF)是一种广泛用于治疗人类免疫缺陷病毒感染的药物。虽然长期暴露于TDF与骨矿物质密度(BMD)降低和骨折风险增加有关,关于它对骨质量各个方面的影响的讨论有限。本范围审查旨在全面概述TDF对BMD以外的骨骼质量的影响。使用PubMed和Scopus数据库进行文献检索,以确定调查TDF对骨质量影响的研究。用英语写的原创研究文章,不论研究类型或发表年份,包括在审查中。7条符合纳入标准。研究结果表明,长期暴露于TDF不利地影响骨微结构和强度,阻碍骨折愈合和骨骼微损伤修复。观察到的效果表明涉及骨细胞信号的复杂相互作用,细胞因子和骨重塑过程是TDF对骨质量影响的潜在机制。作为结论,TDF通过影响动态骨细胞行为和信号通路来损害骨重塑和微体系结构。未来的研究应该更深入地了解TDF对骨骼的复杂负面影响,并探索逆转这些影响的策略。
    Tenofovir disoproxil fumarate (TDF) is a widely used pharmacological agent for the treatment of human immunodeficiency virus infection. While prolonged exposure to TDF has been associated with a decrease in bone mineral density (BMD) and increased fracture risk, limited discussion exists on its effects on various aspects of bone quality. This scoping review aims to provide a comprehensive overview of the impact of TDF on bone quality beyond BMD. A literature search was conducted using the PubMed and Scopus databases to identify studies investigating the effects of TDF on bone quality. Original research articles written in English, irrespective of study type or publication year, were included in the review. Seven articles met the inclusion criteria. Findings indicate that prolonged exposure to TDF adversely affects bone microarchitecture and strength, impeding fracture healing and skeletal microdamage repair. The observed effects suggest a complex interplay involving bone cell signalling, cytokines and bone remodelling processes as potential mechanisms underlying TDF\'s impact on bone quality. As a conclusion, TDF impairs bone remodelling and microarchitecture by influencing dynamic bone cell behaviour and signalling pathways. Future studies should delve deeper into understanding the intricate negative effects of TDF on bone and explore strategies for reversing these effects.
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  • 文章类型: Journal Article
    随着城市和人口的发展,污泥的产量逐年增加。实现污泥脱水和处置的成本效益已成为一个不可回避的挑战,高效和安全的过程。在这项工作中,首先,从水分分布方面综述了限制污泥脱水的因素,污泥浓度,有机质含量,电负性,絮凝强度,和细胞外聚合物(EPS)。随后,专注于骨架建造者的脱水技术,它的最新进展在机制方面进行了详细说明,评价指标,影响因素,和技术耦合。此外,总结了骨架建设者对污泥处置阶段的影响。最后,展望了污泥脱水和骨架建设者面临的挑战。该综述将为后续有关骨架构建器的实验和实践提供一些理论基础和技术指导。
    With the development of cities and population, the production of sludge is increasing annually. It has become an unavoidable challenge to achieve sludge dewatering and disposal by a cost-effective, efficient and safe process. In this work, firstly, the factors limiting sludge dewatering are reviewed in terms of moisture distribution, sludge concentration, organic matter content, electronegativity, floc strength, and extracellular polymers (EPS). Subsequently, focusing on the dewatering technology about the skeleton builder, the recent progress of it is detailed in terms of mechanism, evaluation indicators, influencing factors, and technology coupling. In addition, the impact of skeleton builders on the sludge disposal stage is concluded. Finally, the challenges faced by sludge dewatering and skeleton builders are prospected. This review will provide some theoretical basis and technical guidance for subsequent experiments and practices regarding skeleton builders.
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  • 文章类型: Journal Article
    人类骨骼显示出大量的特征和变异特征,这些特征和变异特征是个体间变异性的要素。一般的假设是,它们可能代表个人识别身份不明的死者的个性化标记,但很少有作品认为他们这样。这篇评论概述了可能使用非度量特征和骨骼变体进行个人识别的情况。本文讨论了与无量化比较有关的问题,然后,它提出了一种基于这些特征的频率来识别未知遗骸的统计方法。缩小最初的1000篇论文数量,评论的核心是10篇论文,这些论文将非度量特征和骨骼变体视为个性化特征,根据定性和定量评估。尽管视觉检查仍然是黄金标准,需要更多的声音方法来量化匹配或不匹配的强度。这尤其适用于司法要求之后,因此也满足了检察官和法官依赖“量化”风险的愿望。为此,非度量特征和骨骼变异似乎是提供量化证据的合适工具,当相关频率已知时。
    The human skeleton displays an immense array of traits and variant features that are elements of inter-individual variability. The general assumption is that they may represent individualizing markers for the personal identification of unidentified decedents, but very few works consider them as such. This review provides an overview on the possible use of non-metric traits and skeletal variants for personal identification. The paper discusses the issues related to unquantified comparisons, then it presents a statistical approach based on frequencies of these features for identifying unknown remains. Narrowing down an initial number of 1000 papers, the core of the review is represented by 10 papers that considered non-metric traits and skeletal variants as individualizing features, according to both qualitative and quantitative assessments. Despite visual examination remains the gold-standard, more sound methods are requested to quantify the strength of a match or a mismatch. This especially applies in the wake of juridical demands, hence also satisfying the desire of prosecutors and judges to rely on a \"quantified\" risk. To this purpose, non-metric traits and skeletal variants seem to be a suitable tool to provide quantified evidence, when related frequencies are known.
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  • 文章类型: Systematic Review
    在家庭康复计划中进行规定的体育锻炼对于恢复肌肉力量和改善不同身体残疾的人的平衡起着重要作用。然而,在没有医学专家的情况下,参加这些项目的患者无法评估他们的行动表现。最近,基于视觉的传感器已部署在活动监测领域。它们能够捕获准确的骨架数据。此外,计算机视觉(CV)和深度学习(DL)方法取得了重大进展。这些因素促进了设计自动患者活动监测模型的解决方案。然后,改善此类系统的性能以帮助患者和物理治疗师引起了研究界的广泛兴趣。本文提供了有关骨骼数据采集过程不同阶段的全面而最新的文献综述,以进行物理运动监测。然后,将回顾先前报道的基于人工智能(AI)的骨架数据分析方法。特别是,从骨架数据中学习特征,评估,并将研究以康复监测为目的的反馈生成。此外,将审查对这些过程的相关挑战。最后,对该领域未来的研究方向提出了几点建议。
    Performing prescribed physical exercises during home-based rehabilitation programs plays an important role in regaining muscle strength and improving balance for people with different physical disabilities. However, patients attending these programs are not able to assess their action performance in the absence of a medical expert. Recently, vision-based sensors have been deployed in the activity monitoring domain. They are capable of capturing accurate skeleton data. Furthermore, there have been significant advancements in Computer Vision (CV) and Deep Learning (DL) methodologies. These factors have promoted the solutions for designing automatic patient\'s activity monitoring models. Then, improving such systems\' performance to assist patients and physiotherapists has attracted wide interest of the research community. This paper provides a comprehensive and up-to-date literature review on different stages of skeleton data acquisition processes for the aim of physio exercise monitoring. Then, the previously reported Artificial Intelligence (AI) - based methodologies for skeleton data analysis will be reviewed. In particular, feature learning from skeleton data, evaluation, and feedback generation for the purpose of rehabilitation monitoring will be studied. Furthermore, the associated challenges to these processes will be reviewed. Finally, the paper puts forward several suggestions for future research directions in this area.
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  • 文章类型: Journal Article
    为了减少运动马的骨骼损伤,已经进行了许多研究。这篇文献综述的目的是汇编在这一领域超过三十年的研究结果,提出切实可行的建议,并描述多年来研究如何发展。一项初步研究调查了生物利用硅在赛马饮食中的作用进一步的研究表明,这种减少与失速房消除了高速运动有关,导致废用骨质减少。仅需相对较短的冲刺(50至82m之间)即可保持骨骼强度,每周少至一次冲刺即可提供所需的刺激。没有速度的耐力运动不能给骨骼带来同样的好处。适当的营养也需要最佳的骨骼健康,但是没有正确的锻炼,强壮的骨头无法维持。几种药物可能具有能够损害骨骼健康的意外后果。影响马骨骼健康的许多因素也存在于人类中,包括久坐的生活方式,营养不当,和药物副作用。
    Much research has been conducted in an attempt to decrease skeletal injuries in athletic horses. The objective of this literature review is to compile the findings of over three decades of research in this area, make practical recommendations, and describe how research can develop over the years. An initial study investigating the role of bioavailable silicon in the diets of horses in race training produced the unexpected finding of decreased bone mineral content of the third metacarpus subsequent to the onset of training. Further studies revealed this decrease to be associated with stall housing eliminating high-speed exercise, leading to disuse osteopenia. Only relatively short sprints (between 50 and 82 m) were necessary to maintain bone strength and as few as one sprint per week provided the needed stimuli. Endurance exercise without speed fails to elicit the same benefits to bone. Proper nutrition is also required for optimal bone health, but without the right exercise, strong bone cannot be maintained. Several pharmaceuticals may have unintended consequences capable of impairing bone health. Many of the factors influencing bone health in horses also exist in humans including a sedentary lifestyle, improper nutrition, and pharmaceutical side-effects.
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  • 文章类型: Journal Article
    骨质疏松是指骨质量和微结构的恶化所反映的过度骨丢失。这会损害骨骼强度。它是一种复杂的多因素内分泌疾病。其发病机制依赖于几个内源性和外源性危险因素的存在,这将生理骨骼重塑扭曲到一个更分解代谢的过程,导致净骨丢失。这篇综述旨在从生物学角度对骨质疏松症进行概述。流行病学和临床方面(检测和药理管理)。该评论将作为读者了解骨质疏松症的基础知识并采取行动预防和管理这种疾病的最新参考。
    Osteoporosis refers to excessive bone loss as reflected by the deterioration of bone mass and microarchitecture, which compromises bone strength. It is a complex multifactorial endocrine disease. Its pathogenesis relies on the presence of several endogenous and exogenous risk factors, which skew the physiological bone remodelling to a more catabolic process that results in net bone loss. This review aims to provide an overview of osteoporosis from its biology, epidemiology and clinical aspects (detection and pharmacological management). The review will serve as an updated reference for readers to understand the basics of osteoporosis and take action to prevent and manage this disease.
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  • 文章类型: Journal Article
    位于斯洛伐克SilickáBrezová改革教堂中央的坟墓包含一个人的骨骼遗骸。这项研究的目的是确认这些骨骼遗骸上是否存在强直性脊柱炎。确定性别,死亡年龄,身材,和人类学方法的个人祖先,并记录和识别疾病的其他病理表现。进行了宏观检查,通过对遗骸古病理状况的分析,随后X射线和CT完成了分析。这具骨骼属于欧洲血统的男性,死亡时年龄在45至60岁之间。从股骨的最大长度计算的身高为163.12±3.48cm。在许多骨头上发现了病理特征。强直几乎影响了整个脊髓,包括骶髂关节.骨架还表现出许多明显的变化。通过标准人类学方法和现代诊断方法(X射线和CT分析)的结合证实了强直性脊柱炎的存在。它是一种特定的疾病,全球患病率在0.1%至1%之间。有可能进行进一步的遗传研究,以确定与居住在该村庄的被诊断出患有相同疾病的个体的遗传相关性程度。
    The grave situated in the central part of the reformed church in Silická Brezová in Slovakia contained the human skeletal remains of one individual. The aim of this study was to confirm the presence of ankylosing spondylitis on these skeletal remains. Determine the sex, age at death, stature, and ancestry of the individual by anthropological methods, and also record and identify other pathological manifestations of diseases. A macroscopic examination has been carried out, with the analysis of the palaeopathological conditions of the remains, and subsequently an X-ray and CT completed analysis. The skeleton belonged to a male of European origin, aged between 45 and 60 years at the time of death. Stature calculated from the maximal length of his femur was 163.12 ± 3.48 cm. Pathological features were identified on the many bones. Ankylosis affected almost the whole spinal cord, including the sacroiliac joints. The skeleton also presented the manifestation of many entheseal changes. Presence of the ankylosing spondylitis was confirmed by a combination of standard anthropological methods and modern diagnostic methods (X-ray and CT analysis). It is a specific disease with a prevalence between 0.1 and 1% worldwide. There is a potential for further genetic research to determine the degree of genetic relatedness with an individual living in this village who has been diagnosed with the same disease.
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  • 文章类型: Journal Article
    《家禽科学杂志》上发表了一个世纪的出版物,以百年论文来庆祝。它是相关的,因此,探索微量矿物质(TM)研究,重点是锰和骨骼发育的某些方面。关于该主题的一些初步观察出现在我们期刊的最早卷中。在1920年代末和1930年代发表的研究证实了饮食和未识别的有机食品的重要性(即,维生素)和无机营养素(即,TM)相对于骨骼发育。早期营养研究强调需求研究,寻找未知因素来缓解公认的缺陷,最后是重要的营养相互作用,尤其是在肠道里.本文将讨论TM的研究,重点是锰(Mn)。关于胚胎和孵化后骨骼发育机制的一些基本发现直接导致了针对Mn在骨phy基质合成中的作用的研究。今天的TM研究议程在所有微量营养素方面都有很大不同,并且在很大程度上是由肠道健康驱动的,无抗生素生产,食品安全和环境结果。在过去的20年里,发表的研究中有很大一部分集中在形式上(即,有机,无机)给定的TM相对于给定的生理或生产响应,借口是现代商业基因型和生产现实自上次NRC出版物(NRC,1994).如果仔细回顾最近的科学文献,然而,可以说,“痕量矿物需求”一词通常是一个误称。目前推荐或使用的许多TM水平不是可量化需求研究的结果,而是通常基于与市售TM的不同有机和无机形式的功效比较。
    A century of publications in the Poultry Science journal is celebrated with Centennial papers. It is relevant, therefore, to explore trace mineral (TM) research with an emphasis on manganese and selected aspects of skeletal development. Some of the initial observations on the topic appeared in the earliest volumes of our journal. Published studies in the late 1920\'s and 1930\'s confirmed the importance of the diet and unidentified organic (i.e., vitamins) and inorganic nutrients (i.e., TM) relative to skeletal development. The early nutrition research emphasized requirement studies, the search for unknown factors to alleviate recognized deficiencies, and lastly important nutrient interactions, especially in the gut. This review will discuss TM research with an emphasis on manganese (Mn). Some of the fundamental discoveries on the mechanisms underlying embryonic and post-hatch skeletal development led directly to research directed at the role of Mn in the synthesis of the epiphyseal matrix. The TM research agenda today is considerably different with respect to all trace nutrients and is largely driven by gut health, antibiotic free production, food safety and environmental outcomes. A significant proportion of the published research over the last 2 decades has focused on the form (i.e., organic, inorganic) of a given TM relative to a given physiologic or production response under the pretext that modern commercial genotypes and production realities have changed considerably since the last NRC publication (NRC, 1994). If one closely reviews the more recent scientific literature, however, it could be argued that the term \"trace mineral requirement\" is often a misnomer. Many of the TM levels recommended or in use today are not the result of quantifiable requirement studies but are often based on efficacy comparisons with the different organic and inorganic forms of commercially available TM.
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  • 文章类型: Journal Article
    人类行为的分类是计算机视觉中一个正在进行的研究问题。这篇综述旨在对当前有关数据融合和动作识别技术的文献进行分类,并找出差距和未来的研究方向。成功生产具有成本效益的便携式基于视觉的传感器,大大增加了数据集的数量和大小。动作识别数据集数量的增加与深度学习架构和计算支持的进步相交,这两者都提供了重要的研究机会。自然,每个动作数据模态,如RGB,深度,骷髅,和红外(IR)-具有明显的特征;因此,重要的是要利用每种方式的价值来更好地识别行动。在本文中,我们只关注RGB-D视角下的视觉背景下的数据融合和识别技术。最后,我们讨论了研究挑战,新兴趋势,以及未来可能的研究方向。
    Classification of human actions is an ongoing research problem in computer vision. This review is aimed to scope current literature on data fusion and action recognition techniques and to identify gaps and future research direction. Success in producing cost-effective and portable vision-based sensors has dramatically increased the number and size of datasets. The increase in the number of action recognition datasets intersects with advances in deep learning architectures and computational support, both of which offer significant research opportunities. Naturally, each action-data modality-such as RGB, depth, skeleton, and infrared (IR)-has distinct characteristics; therefore, it is important to exploit the value of each modality for better action recognition. In this paper, we focus solely on data fusion and recognition techniques in the context of vision with an RGB-D perspective. We conclude by discussing research challenges, emerging trends, and possible future research directions.
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  • 文章类型: Journal Article
    The files of the Pathology section of F Forensic Science South Australia (FSSA) Adelaide, Australia were examined over a seven-year period from January 2013 to December 2019 for all cases where skeletal remains had been submitted for assessment. There were 150 cases comprising 79 non-human (53%), 49 traditional Australian Aboriginal (33%) and 12 Coronial (8%). The remaining cases included anatomically prepared skeletal remains or other historic remains, and four cases which were subsequently determined to be non-osseous. The large number of domestic animal bones found reflects the agricultural nature of much of the state in addition to historical urban butchering practices. The next largest category was that of indigenous remains associated with the long history of Aboriginal occupation. Established protocols ensure that this culturally-sensitive skeletal material is passed on to the appropriate traditional community leaders. This study shows the unique range of skeletal materials that is currently being forensically assessed in South Australia and the varied medicolegal implications of each category.
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