Efficiency

效率
  • 文章类型: Journal Article
    本文考虑了数字化背景下俄罗斯医学高等教育系统中R&D部门方向发展的研究结果。该分析使在当前医疗实践中,医务人员必须系统地掌握突破性的数字技术的背景下,解决提高医疗服务质量问题的及时性和重要性成为可能。在数字化的背景下,这对于确保俄罗斯高等医学教育的研发效率至关重要。R&D领域活动组织的主要模式有特色,考虑到资金来源和人员配置。根据对Google文档中学生的在线调查,了解他们在教育期间和毕业后对进一步参与研发的态度,在大学教育期间从事研发的动力不足,这是由财务薪酬前景的非显而易见性所证明的。伴随着这个,学生对掌握突破性的数字技术产生了高度的兴趣,以便将其与最新的医疗技术一起进一步应用于医疗实践。
    The article considers results of study of the R&D sector directions development in system of Russian medical higher education in the context of digitization. The analysis made it possible to substantiate timeliness and importance of solving problems of improving medical services quality against the background of necessity for medical workers to systematically master breakthrough digital technologies in current medical practice. This conditions importance to ensure efficiency of R&D in Russian higher medical education in the context of digitization. The main models of organization of activities in the field of R&D are characterized, taking into account sources of financing and staffing. Based on on-line surveys of students in Google docs about their attitude to their further participation in R&D during education and after graduation, weak motivation to be engaged in R&D during their university education was revealed that is justified by non-obviousness of prospects of financial remuneration. Along with this, study established high degree of interest among students to mastering breakthrough digital technologies in order to further apply them in medical practice together with the latest medical technologies.
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  • 文章类型: Journal Article
    云计算的进步,飞行的临时网络,无线传感器网络,人工智能,大数据,第五代移动网络和物联网引领了智慧城市的发展。由于它们之间的巨大联系,通过公共互联网收集和交换大量数据。因此,通过这些开放的公共渠道,交换的消息容易受到许多安全和隐私威胁。尽管已经设计了许多安全技术来解决这个问题,他们中的大多数仍然容易受到攻击,而一些部署计算广泛的加密操作,如双线性对和区块链。在本文中,我们利用生物识别技术,纠错码和模糊承诺方案,为智慧城市开发安全、节能的认证方案。这是由以下事实通知的:生物特征数据的复制很麻烦,因此阻止了诸如侧信道之类的攻击。我们使用Burrows-Abadi-Needham逻辑逻辑正式分析了协议的安全性,这表明我们的方案实现了通信实体之间的强相互认证。我们的协议的语义分析表明,它减轻了诸如去同步,窃听,会话劫持,伪造和侧沟。此外,它的正式安全性分析表明,在Canetti和Krawczyk攻击模型下,它是安全的。在性能方面,我们的方案被证明可以减少20.7%的计算开销,因此是最先进的协议中最有效的。
    Advancements in cloud computing, flying ad-hoc networks, wireless sensor networks, artificial intelligence, big data, 5th generation mobile network and internet of things have led to the development of smart cities. Owing to their massive interconnectedness, high volumes of data are collected and exchanged over the public internet. Therefore, the exchanged messages are susceptible to numerous security and privacy threats across these open public channels. Although many security techniques have been designed to address this issue, most of them are still vulnerable to attacks while some deploy computationally extensive cryptographic operations such as bilinear pairings and blockchain. In this paper, we leverage on biometrics, error correction codes and fuzzy commitment schemes to develop a secure and energy efficient authentication scheme for the smart cities. This is informed by the fact that biometric data is cumbersome to reproduce and hence attacks such as side-channeling are thwarted. We formally analyze the security of our protocol using the Burrows-Abadi-Needham logic logic, which shows that our scheme achieves strong mutual authentication among the communicating entities. The semantic analysis of our protocol shows that it mitigates attacks such as de-synchronization, eavesdropping, session hijacking, forgery and side-channeling. In addition, its formal security analysis demonstrates that it is secure under the Canetti and Krawczyk attack model. In terms of performance, our scheme is shown to reduce the computation overheads by 20.7% and hence is the most efficient among the state-of-the-art protocols.
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  • 文章类型: Journal Article
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  • 文章类型: Journal Article
    行为往往是疾病传播的根本驱动因素,可以看到个体的行为扩大到人口水平的流行病学模式。这里我们关注动物行为,以及它在寄生虫传播中的作用,以追踪其对寄生虫的连锁反应,生产和污染。牲畜在放牧环境中面临营养与寄生虫的权衡,在放牧环境中,粪便既能带来营养益处,给周围的草皮施肥,而且还有感染线虫幼虫污染草皮的寄生虫风险。反刍动物的放牧决定取决于权衡的感知成本和收益,这取决于两种环境的变化(例如,粪便的数量)和动物因素(例如,生理状态)。这种放牧决定决定了营养素和寄生虫的摄入量,影响牲畜生长速度和生产效率。这通过两个主要机制影响反刍动物牲畜生产的温室气体成本:(1)生长较慢导致农场持续时间更长;(2)寄生动物每单位食物摄入产生更多的甲烷。然而,行为对宿主寄生虫状态的敏感性为早期发现和控制寄生虫提供了机会。诸如加速度计之类的远程监控技术可以在暴露后不久检测到寄生虫引起的疾病行为,在对增长产生影响之前,因此可用于靶向个体进行早期治疗。我们得出的结论是,牲畜宿主x寄生虫相互作用是全球粮食安全和气候变化挑战的中心,了解牲畜行为有助于解决这两个问题。
    Behaviour is often the fundamental driver of disease transmission, where behaviours of individuals can be seen to scale up to epidemiological patterns seen at the population level. Here we focus on animal behaviour, and its role in parasite transmission to track its knock-on consequences for parasitism, production and pollution. Livestock face a nutrition versus parasitism trade-off in grazing environments where faeces creates both a nutritional benefit, fertilizing the surrounding sward, but also a parasite risk from infective nematode larvae contaminating the sward. The grazing decisions of ruminants depend on the perceived costs and benefits of the trade-off, which depend on the variations in both environmental (e.g., amounts of faeces) and animal factors (e.g., physiological state). Such grazing decisions determine the intake of both nutrients and parasites, affecting livestock growth rates and production efficiency. This impacts on the greenhouse gas costs of ruminant livestock production via two main mechanisms: (1) slower growth results in longer durations on-farm and (2) parasitised animals produce more methane per unit food intake. However, the sensitivity of behaviour to host parasite state offers opportunities for early detection of parasitism and control. Remote monitoring technology such as accelerometers can detect parasite-induced sickness behaviours soon after exposure, before impacts on growth, and thus may be used for targeting individuals for early treatment. We conclude that livestock host x parasite interactions are at the centre of the global challenges of food security and climate change, and that understanding livestock behaviour can contribute to solving both.
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  • 文章类型: Journal Article
    背景:医学研究生产率在全球范围内不断提高,由于面临重大挑战,第三世界国家的进展滞后,包括培训不足和人才流失。在战争爆发之前,叙利亚一直表现出缓慢的上升趋势,严重阻碍了学术增长和生产力。在这种情况下,深入了解影响研究生产率的因素对于指导教育政策和资源分配至关重要。先前评估叙利亚学者对这一问题的观点的横断面研究受到已发表的医护人员样本量小的限制,这使得很难确定使他们能够进行研究的因素。
    方法:为了应对这一挑战,我们采用了病例控制设计。我们分离了已发表的早期职业叙利亚医护人员,并将他们的特征和看法与未发表的匹配对照进行了比较。医学领域的作者,牙科,通过对PubMed和GoogleScholar的广泛搜索,确定了与任何叙利亚大学有联系的药房。这些作者被邀请填写一份涵盖参与者研究贡献的问卷,除了他们自我评估的知识,态度,和研究的障碍。问卷公开发布,以招募同等样本的匹配对照,一半由未发表的研究人员组成,另一半由没有先前研究贡献的参与者组成。
    结果:招募了十六名参与者。他们的知识,态度,感知障碍解释了研究参与和出版的46%和34%的可变性,分别(P<0.001)。参与和发表与研究相关的知识和态度较高的研究研究(P<0.001)。受访者对研究相关障碍及其学业成绩的评估在案例和对照之间没有差异。优越的研究相关知识和态度与男性相关,更高的英语能力,和更好的互联网连接。同时,课外培训和导师的支持与更积极的研究相关态度和更少的感知障碍相关。
    结论:叙利亚医疗专业人员的研究生产率与他们对医学研究的知识和态度呈正相关。值得注意的是,人口统计学差异与研究相关知识和动机的差异有关。总之,这些结果表明,通过集中力量改善课外培训干预措施和导师的支持,这是一个潜在的增强途径。
    BACKGROUND: Medical research productivity is globally increasing, with a lagging progress in third-world countries due to significant challenges, including inadequate training and brain drain. Syria had been showing a slow upward trend until the war broke out and severely hindered academic growth and productivity. A deeper understanding of the factors influencing research productivity in this context are fundamental to guide educational policies and resource allocation. Previous cross-sectional studies that evaluated the perspectives of Syrian academics on the issue were limited by the small sample size of published healthcare workers, making it difficult to identify the factors that enabled them to pursue research.
    METHODS: To address this challenge, we employed a case-control design. We isolated published early-career Syrian healthcare workers and compared their characteristics and perceptions to unpublished matched controls. Authors in the fields of medicine, dentistry, and pharmacy affiliated with any Syrian University were identified through an extensive search of PubMed and Google Scholar.These authors were invited to complete a questionnaire that covered participants\' research contributions, alongside their self-assessed knowledge, attitudes, and barriers towards research. The questionnaire was publicly published to recruit an equal sample of matching controls, with half consisting of unpublished researchers and the other half of participants without prior research contributions.
    RESULTS: Six-hundred-sixteen participants were recruited. Their knowledge, attitudes, and perceived barriers explained 46% and 34% of the variability in research involvement and publication, respectively (P < 0.001). Getting involved in and publishing research studies associated with higher research-related knowledge and attitudes (P < 0.001). Respondents\' assessment of research-related barriers and their academic scores did not differ between cases and controls. Superior research-related knowledge and attitudes were associated with male gender, higher English competency, and better internet connectivity. Meanwhile, extracurricular training and mentors\' support were associated with more positive research-related attitudes and less perceived barriers.
    CONCLUSIONS: Research productivity of medical professionals in Syria exhibits a positive correlation with their knowledge and favorable attitudes towards medical research. Noteworthy, the demographic variations are linked to disparities in research-related knowledge and motivation. In conclusion, these results suggest a potential avenue for enhancement through concentrated efforts on improving extracurricular training interventions and mentors\' support.
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  • 文章类型: Journal Article
    全球能源使用的增加和化石燃料依赖导致的全球变暖等环境问题凸显了转向可再生能源的迫切需要。钙钛矿太阳能电池(PSC)是一个有前途的选择,为具有成本效益的生产提供高效率和潜力。这项研究深入研究了与金属卤化物PSC(M-PSC)和碳基电极PSS(C-PSC)相关的环境问题和可行的解决方案。它展示了PSC技术的快速进步,强调其提供高效和经济的可再生能源选择的潜力。然而,这些技术对环境的影响,特别是M-PSC中有毒铅(Pb)的利用以及C-PSC中的稳定性和降解问题,它们的广泛应用和可持续性面临相当大的障碍。本文详细介绍了PSC的最新进展,通过创新的材料组合和设备设计,专注于增强设备效率和稳定性。尽管如此,与有毒物质从受损或恶化的PSC扩散到生态系统相关的环境危害引起了人们的重大关注。特别是,来自M-PSC的Pb污染土壤和水生生态系统的风险是人类和环境健康的紧迫问题,促进对替代材料和方法的研究,以减少这些影响。作者研究了几种策略,包括引入无铅钙钛矿,阻止有害物质逸出的封装方法,和PSC元素的回收。该研究强调必须使技术创新与环境和健康考虑保持一致,呼吁对可持续和安全的PSC技术进行持续研究。这篇综述强调了对PSC技术进行详细评估的必要性,专注于他们的可再生能源贡献,环境影响,以及减轻这些影响的策略。作者呼吁有凝聚力的策略来开发有效的PSC,成本效益高,环保,和安全的广泛使用。
    The urgent need to shift to renewable energy is highlighted by rising global energy use and environmental issues like global warming from fossil fuel dependency. Perovskite solar cells (PSCs) stand out as a promising option, providing high efficiency and potential for cost-effective production. This study delves into the environmental concerns and viable solutions linked with metal-halide PSCs (M-PSCs) and carbon-based electrode PCSs (C-PSCs). It showcases the swift progress in PSC technology, highlighting its potential to deliver efficient and economical renewable energy options. Yet, the environmental implications of these technologies, especially the utilization of toxic lead (Pb) in M-PSCs and the issues of stability and degradation in C-PSCs, represent considerable hurdles for their broad application and sustainability. The paper details the recent advances in PSCs, focusing on enhancements in device efficiency and stability through innovative material combinations and device designs. Nonetheless, the environmental hazards linked to the dispersal of toxic substances from compromised or deteriorating PSCs into the ecosystem raise significant concerns. In particular, the risk of Pb from M-PSCs contaminating soil and aquatic ecosystems is a pressing issue for human and environmental health, spurring investigations into alternative materials and methods to diminish these impacts. The authors examine several strategies, including the introduction of Pb-free perovskites, encapsulation methods to block the escape of hazardous substances, and the recycling of PSC elements. The study stresses the necessity of aligning technological innovations with considerations for the environment and health, calling for ongoing research into PSC technologies that are sustainable and safe. This review highlights the need for detailed assessments of PSC technologies, focusing on their renewable energy contributions, environmental impacts, and strategies to mitigate these effects. The authors call for a cohesive strategy to develop PSCs that are efficient, cost-effective, eco-friendly, and safe for widespread use.
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  • 文章类型: Journal Article
    目的:关于炎症性关节炎(IA)和骨关节炎(OA)的费用的现有研究通常是横断面的和/或涉及患有各种疾病持续时间的患者,因此,从诊断时开始,没有提供关于疾病成本的全面观点。在这项研究中,因此,我们评估了IA和OA患者在诊断前后一年的初始队列中生产力损失的成本.
    方法:就业状况,月收入,天不上班,并在诊断时和一年后收集出勤率,以估计每年的失业成本,旷工,和使用人力资本方法的出勤主义。执行非参数引导以考虑估计成本的不确定性。
    结果:与OA患者(n=64)相比,IA患者(n=102,包括48例类风湿关节炎,19脊柱关节炎,23银屑病关节炎,和12名血清阴性IA患者)更年轻(平均年龄:52.3vs.59.5年),接受治疗的比例更高(99.0%vs.67.2%),并且在诊断后1年出现的评分下降更大(中位数:15%vs10%)。前一年,IA患者的缺勤和出勤费用均低于OA患者(USD566vs.USD733和USD8,472vs.分别为10,684美元)和诊断后(636美元与USD1,035和USD6,866vs.分别为9,362美元)。
    结论:IA和OA都会在诊断前后的一年中造成巨大的生产力损失。IA患者的生产率有了更大的提高,这表明IA的治疗可以提高工作效率。
    OBJECTIVE: Existing studies on the cost of inflammatory arthritis (IA) and osteoarthritis (OA) are often cross-sectional and/or involve patients with various disease durations, thus not providing a comprehensive perspective on the cost of illness from the time of diagnosis. In this study, we therefore assessed the cost of lost productivity in an inception cohort of patients with IA and OA in the year before and after diagnosis.
    METHODS: Employment status, monthly income, days absent from work, and presenteeism were collected at diagnosis and 1 year later to estimate the annual costs of unemployment, absenteeism, and presenteeism using human capital approach. Non-parametric bootstrapping was performed to account for the uncertainty of the estimated costs.
    RESULTS: Compared to patients with OA (n = 64), patients with IA (n = 102, including 48 rheumatoid arthritis, 19 spondyloarthritis, 23 psoriatic arthritis, and 12 seronegative IA patients) were younger (mean age: 52.3 vs. 59.5 years) with a greater proportion receiving treatment (99.0% vs. 67.2%) and a greater decrease in presenteeism score (median: 15% vs 10%) 1 year after diagnosis. Annual costs of absenteeism and presenteeism were lower in patients with IA than those with OA both in the year before (USD566 vs. USD733 and USD8,472 vs. USD10,684, respectively) and after diagnosis (USD636 vs. USD1,035 and USD6,866 vs. USD9,362, respectively).
    CONCLUSIONS: Both IA and OA impose substantial cost of lost productivity in the year before and after diagnosis. The greater improvement in productivity seen in patients with IA suggests that treatment for IA improves work productivity.
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  • 文章类型: Letter
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  • 文章类型: Journal Article
    该研究通过巴基斯坦ISO9001认证大学的学术和行政人员的工作满意度,研究了员工培训对大学生产率的影响,采用定量研究方法。数据是通过在线调查收集的,使用学术和行政人员的目的抽样,使用SmartPLS-4进行分析。结果表明,员工培训显著影响工作满意度和大学生产率,工作满意度是一个重要的中介。这项研究通过验证ISO9001认证大学的组织学习理论,为学术话语做出了贡献。通过符合ISO9001标准的员工培训,强调提高生产力和工作满意度。它还强调了QMS对员工态度和大学生产力的影响,强调实施ISO9001的重要性,特别是通过员工培训,在大学运营中。实际影响包括对决策者的建议,管理员,和质量经理优先考虑以ISO9001为重点的培训,以提高生产率和认证成功率,培养一种持续学习的文化,提高教育质量和组织成果。然而,限制,如研究的横截面设计,目的抽样,而专注于巴基斯坦的特定大学可能会限制普遍性。未来的研究应该探索新的方法来理解影响学术和行政人员工作满意度的因素,以提高全球通过ISO9001认证的大学的生产力。
    The study examines the influence of staff training on university productivity through the job satisfaction of academic and administrative staff in ISO 9001-certified universities in Pakistan, utilizing a quantitative research approach. Data were gathered through online surveys using purposive sampling from academic and administrative staff, with analysis performed using SmartPLS-4. The results indicate that staff training significantly influences both job satisfaction and university productivity, with job satisfaction serving as a significant mediator. This research contributes to scholarly discourse by validating Organizational Learning Theory in ISO 9001-certified universities, highlighting the enhancement of productivity and job satisfaction through ISO 9001-aligned staff training. It also underscores the influence of QMS on employee attitudes and university productivity, highlighting the significance of ISO 9001 implementation, specifically through staff training, in university operations. Practical implications include recommendations for policymakers, administrators, and quality managers to prioritize ISO 9001-focused training to boost productivity and certification success, foster a culture of continuous learning, and improve educational quality and organizational outcomes. However, limitations such as the study\'s cross-sectional design, purposive sampling, and focus on specific universities in Pakistan may limit generalizability. Future research should explore novel approaches to understanding factors influencing job satisfaction among academic and administrative staff to enhance productivity in ISO 9001-certified universities worldwide.
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  • 文章类型: Journal Article
    当考虑牙科修复时,使用固定局部义齿是最广泛接受的治疗选择之一。在过去,制造是使用传统技术完成的,传统的工作流程是迄今为止流行的方法;然而,如今,数字工作流程被用作制造假体的一种手段。本系统综述旨在通过考虑工作流程各自的质量来比较工作流程,比如精度,效率,成本效益,和临床表现。已经进行了完整的搜索,以将2012年至2023年之间发表的任何相关研究纳入Scopus等数据库。WebofScience,PubMed,ScienceDirect,科克伦图书馆两名独立审稿人筛选了纳入的文章,并通过NIH工具评估了研究的方法学质量评级。经过系统的搜索策略,共审查了22篇相关文章。审查的主要结果是发现数字工作流程减少了工作时间,消除托盘的选择,最大限度地减少材料消耗,增强患者的舒适度和接受度。研究还表明,数字工作流程比传统工作流程带来了更高的患者满意度和更高的成功率。由于成本效益,数字牙科的工作流程比传统的工作流程更好。准确度,以及固定假体制造的时间优化。
    When considering dental restorations, the use of fixed partial dentures is one of the most widely accepted treatment options. In the past, fabrication was done using traditional techniques and the conventional workflow was by far the popular method; however, nowadays digital workflows are being used as a means to produce the prosthesis. This systematic review aims to compare the workflows by considering their respective qualities, such as precision, efficiency, cost-effectiveness, and clinical performance. A complete search has been carried out to incorporate any relevant studies published between the years 2012 and 2023 in databases such as Scopus, Web of Science, PubMed, ScienceDirect, and Cochrane Library. Two independent reviewers screened articles for inclusion and assessed the studies\' methodological quality rating via the NIH Tool. A total of 22 relevant articles were reviewed after a systematic search strategy. The main outcome of the review was digital workflows were found to reduce working time, eliminate the selection of trays, minimize material consumption, and enhance patient comfort and acceptance. The studies also showed that digital workflows resulted in greater patient satisfaction and higher success rates than conventional workflows. Workflows for digital dentistry demonstrated to be better than traditional ones due to the cost-effectiveness, accuracy, and time optimization for the fabrication of fixed prostheses.
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