control strategies

控制策略
  • 文章类型: Journal Article
    根霉是100多种水果采后贮藏物流的主要病原菌之一,比如草莓,西红柿和甜瓜。在本文中,形态学和检测的研究,综述了Stolonifer根霉的致病性和感染机制。从物理学的三个维度总结了近年来Storonifer根霉的防治方法,化学和生物学,包括纳米材料,生物代谢物,光控细菌,等。从致病机制研究和新型复合技术两个方面分析了未来采后根霉感染控制的方向。本综述提供的信息将有助于研究人员和技术人员加深对Stolonifer根霉致病性的理解,并在未来开发更有效的控制方法。
    Rhizopus stolonifer is one of the main pathogens in postharvest storage logistics of more than 100 kinds of fruit, such as strawberries, tomatoes and melons. In this paper, the research on the morphology and detection, pathogenicity and infection mechanism of Rhizopus stolonifer was reviewed. The control methods of Rhizopus stolonifer in recent years was summarized from three dimensions of physics, chemistry and biology, including the nanomaterials, biological metabolites, light control bacteria, etc. Future direction of postharvest Rhizopus stolonifer infection control was analyzed from two aspects of pathogenic mechanism research and new composite technology. The information provided in this review will help researchers and technicians to deepen their understanding of the pathogenicity of Rhizopus stolonifer, and develop more effective control methods in the future.
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  • 文章类型: Journal Article
    生物炭已广泛应用于土壤改良和环境修复。多环芳烃(PAHs)可以在制备生物炭中产生,这可能对环境和人类健康构成潜在风险。目前,大多数研究集中在生物炭的生态毒性潜力,而关于生物炭中PAHs的形成机制和缓解策略的系统评价很少。因此,对分布的系统理解,形成机制,风险评估,生物炭中多环芳烃的降解方法是非常需要的。在本文中,综述了生物炭中总PAHs和生物可利用PAHs的分布和含量。然后形成机制,影响因素,系统探索了生物炭中PAHs的潜在风险评价。之后,总结了生物炭中PAHs的有效缓解策略。最后,对未来的研究提出了建议和展望。这篇综述为减少生物炭相关PAHs的形成及其毒性提供了指导。有利于环保生物炭的开发和大规模安全使用。
    Biochar has been widely used in soil amendment and environmental remediation. Polycyclic aromatic hydrocarbons (PAHs) could be produced in preparation of biochar, which may pose potential risks to the environment and human health. At present, most studies focus on the ecotoxicity potential of biochar, while there are few systematic reviews on the formation mechanisms and mitigation strategies of PAHs in biochar. Therefore, a systematical understanding of the distribution, formation mechanisms, risk assessment, and degradation approaches of PAHs in biochar is highly needed. In this paper, the distribution and content of the total and bioavailable PAHs in biochar are reviewed. Then the formation mechanisms, influencing factors, and potential risk assessment of PAHs in biochar are systematically explored. After that, the effective strategies to alleviate PAHs in biochar are summarized. Finally, suggestions and perspectives for future studies are proposed. This review provides a guide for reducing the formation of biochar-associated PAHs and their toxicity, which is beneficial for the development and large-scale safe use of environmentally friendly biochar.
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  • 文章类型: Systematic Review
    背景:关于减少抗生素耐药性(ABR)的医院干预措施的成本和成本效益的信息有限,阻碍了有效的资源分配。
    方法:我们对评估药物和非药物干预措施的成本和成本效益的研究进行了系统的文献综述,监测和控制患者的ABR。直到2023年12月12日发表的文章使用EconLit进行了探索,EMBASE和PubMed。我们专注于关键或高度优先的细菌,根据世界卫生组织的定义,以及干预成本和增量成本效益比(ICER)。遵循系统评价和荟萃分析指南的首选报告项目,我们提取了单位成本,ICER和基本研究信息,包括国家,干预,细菌-药物组合,贴现率,模型类型和结果。成本以2022年美元($)为单位报告,采用医疗保健系统的观点。Woods等人2016年的国家支付意愿(WTP)阈值指导了成本效益评估。我们使用Drummond的方法评估了报告清单的研究。
    结果:在20958篇文章中,59项(32项药物干预措施和27项非药物干预措施)符合纳入标准。非药物干预措施,如卫生措施,单位成本低至每位患者1美元,与通常较高的药物干预成本形成鲜明对比。几项研究发现,与万古霉素相比,基于利奈唑胺的耐甲氧西林金黄色葡萄球菌治疗具有成本效益(ICER每次治疗成功率高达21488美元,所有16项研究的ICER结论:关于ABR干预措施的可靠信息对于有效的资源分配至关重要。我们强调降低医院ABR的成本效益策略,强调大量的知识差距,特别是在低收入和中等收入国家。我们的研究可作为指导未来成本效益研究设计和分析的资源。PROSPERO注册号CRD42020341827和CRD42022340064。
    BACKGROUND: Limited information on costs and the cost-effectiveness of hospital interventions to reduce antibiotic resistance (ABR) hinder efficient resource allocation.
    METHODS: We conducted a systematic literature review for studies evaluating the costs and cost-effectiveness of pharmaceutical and non-pharmaceutical interventions aimed at reducing, monitoring and controlling ABR in patients. Articles published until 12 December 2023 were explored using EconLit, EMBASE and PubMed. We focused on critical or high-priority bacteria, as defined by the WHO, and intervention costs and incremental cost-effectiveness ratio (ICER). Following Preferred Reporting Items for Systematic review and Meta-Analysis guidelines, we extracted unit costs, ICERs and essential study information including country, intervention, bacteria-drug combination, discount rates, type of model and outcomes. Costs were reported in 2022 US dollars ($), adopting the healthcare system perspective. Country willingness-to-pay (WTP) thresholds from Woods et al 2016 guided cost-effectiveness assessments. We assessed the studies reporting checklist using Drummond\'s method.
    RESULTS: Among 20 958 articles, 59 (32 pharmaceutical and 27 non-pharmaceutical interventions) met the inclusion criteria. Non-pharmaceutical interventions, such as hygiene measures, had unit costs as low as $1 per patient, contrasting with generally higher pharmaceutical intervention costs. Several studies found that linezolid-based treatments for methicillin-resistant Staphylococcus aureus were cost-effective compared with vancomycin (ICER up to $21 488 per treatment success, all 16 studies\' ICERsCONCLUSIONS: Robust information on ABR interventions is critical for efficient resource allocation. We highlight cost-effective strategies for mitigating ABR in hospitals, emphasising substantial knowledge gaps, especially in low-income and middle-income countries. Our study serves as a resource for guiding future cost-effectiveness study design and analyses.PROSPERO registration number CRD42020341827 and CRD42022340064.
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  • 文章类型: Journal Article
    多环芳烃(PAHs)是广泛分布于环境和食品中的稳定致癌物质,人类主要通过呼吸道接触PAHs,皮肤接触,和饮食摄入。肉类产品是人类饮食的重要组成部分,肉类加工过程中PAHs的形成是不可避免的。因此,全面了解肉类产品中的PAHs可能有助于将人体暴露剂量降至最低。这篇综述的目的是提供对PAHs摄入和各种生产途径的毒理学分析的全面描述。不同PAHs在各种肉制品中的分布,包括家禽和水产品,被分析。讨论的重点是通过使用内源性腌料和抗氧化剂以及减少外源性颗粒物与PAHs的附着来控制PAHs。此外,提出了减少多环芳烃的潜在策略和未来研究的可能方向。
    Polycyclic aromatic hydrocarbons (PAHs) are stable carcinogens that are widely distributed in the environment and food, and humans are exposed to PAHs primarily through the respiratory tracts, dermal contact, and dietary intake. Meat products are an essential part of the human diet, and the formation of PAHs during meat processing is unavoidable. Therefore, a comprehensive understanding of PAHs in meat products can be a contribution to the minimization of human exposure dose. The aim of this review is to provide a comprehensive description of the toxicological analysis of PAHs intake and the various production pathways. The distribution of different PAHs in various meat products, including poultry and aquatic products, is analyzed. The discussion focuses on controlling PAHs through the use of endogenous marinades and antioxidants as well as reducing exogenous particulate matter-PAHs attachment. In addition, potential strategies for PAHs reduction and possible directions for future research are proposed.
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  • 文章类型: Journal Article
    结直肠癌(CRC)是全球第三大最常见的癌症,每年约有100万人死亡。早期筛查对于增加生存机会至关重要,它还可以降低医疗中心的治疗成本。结肠镜检查是CRC筛查和治疗的金标准。但是它有几个缺点,包括操纵装置的困难,患者不适,和高成本。软机器人,小型且柔顺的装置可以减少施加在结肠壁上的力,为这些问题提供一个潜在的解决方案。然而,控制这些软机器人是具有挑战性的,由于其可变形材料和数学模型的限制。在这篇评论中,我们讨论了用于控制软机器人的无模型和基于模型的方法,这些方法可能适用于结肠镜检查的内机器人。我们强调了根据各种参数选择合适的控制方法的重要性,如传感器和执行器解决方案。这篇综述旨在为软神经机器人的智能控制策略的开发做出贡献,这些策略可以提高结肠镜检查中机器人的有效性和安全性。这些策略可以根据有关机器人和周围环境的可用信息来定义,控制需求,基于校准的机械设计冲击和表征数据。
    Colorectal cancer (CRC) is the third most common cancer worldwide and responsible for approximately 1 million deaths annually. Early screening is essential to increase the chances of survival, and it can also reduce the cost of treatments for healthcare centres. Colonoscopy is the gold standard for CRC screening and treatment, but it has several drawbacks, including difficulty in manoeuvring the device, patient discomfort, and high cost. Soft endorobots, small and compliant devices thatcan reduce the force exerted on the colonic wall, offer a potential solution to these issues. However, controlling these soft robots is challenging due to their deformable materials and the limitations of mathematical models. In this Review, we discuss model-free and model-based approaches for controlling soft robots that can potentially be applied to endorobots for colonoscopy. We highlight the importance of selecting appropriate control methods based on various parameters, such as sensor and actuator solutions. This review aims to contribute to the development of smart control strategies for soft endorobots that can enhance the effectiveness and safety of robotics in colonoscopy. These strategies can be defined based on the available information about the robot and surrounding environment, control demands, mechanical design impact and characterization data based on calibration.
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  • 文章类型: Systematic Review
    禽流感病毒在家禽中的全球传播正在造成越来越多的社会经济破坏。已经开发了各种机制模型,以更好地了解禽流感的传播,并评估控制措施在减轻这些病毒造成的社会经济损失方面的有效性。然而,禽流感传播和控制模式的结果尚未得到全面审查。这种审查可以帮助决策者了解情况,并指导未来的建模工作。为了填补这一空白,我们对已应用于现场暴发的机制模型进行了系统评价.我们的三个目标是:(1)描述模型的类型及其流行病学背景,(2)列出低致病性和高致病性禽流感传播的常用参数的估计,(3)根据机理模型回顾禽流感的传播特征和控制策略的有效性。我们共审查了46篇文章。其中,26篇文章通过将模型拟合到数据来估计参数,一个人评估了控制策略的有效性,19都做到了。个体间繁殖数量的值范围很广:高致病性禽流感病毒的繁殖数量为2.18至86,低致病性禽流感病毒从4.7到45.9,根据流行病学设置,病毒亚型和宿主物种。其他参数,例如潜伏期和感染期的持续时间,通常取自文学,限制模型的潜在见解。关于控制策略,许多模型评估了剔除(n=15),而疫苗接种受到的关注较少(n=6)。根据审查的文章,最佳控制策略在病毒亚型和当地条件之间有所不同,并取决于干预的总体目标。例如,当目标是限制被扑杀鸡群的总数时,疫苗接种是最佳的.相比之下,先发制人的剔除是减少流行病的规模和持续时间的首选。早期实施持续提高了干预措施的整体效果,强调需要进行有效的监测和防疫。
    The global spread of avian influenza A viruses in domestic birds is causing increasing socioeconomic devastation. Various mechanistic models have been developed to better understand avian influenza transmission and evaluate the effectiveness of control measures in mitigating the socioeconomic losses caused by these viruses. However, the results of models of avian influenza transmission and control have not yet been subject to a comprehensive review. Such a review could help inform policy makers and guide future modeling work. To help fill this gap, we conducted a systematic review of the mechanistic models that have been applied to field outbreaks. Our three objectives were to: (1) describe the type of models and their epidemiological context, (2) list estimates of commonly used parameters of low pathogenicity and highly pathogenic avian influenza transmission, and (3) review the characteristics of avian influenza transmission and the efficacy of control strategies according to the mechanistic models. We reviewed a total of 46 articles. Of these, 26 articles estimated parameters by fitting the model to data, one evaluated the effectiveness of control strategies, and 19 did both. Values of the between-individual reproduction number ranged widely: from 2.18 to 86 for highly pathogenic avian influenza viruses, and from 4.7 to 45.9 for low pathogenicity avian influenza viruses, depending on epidemiological settings, virus subtypes and host species. Other parameters, such as the durations of the latent and infectious periods, were often taken from the literature, limiting the models\' potential insights. Concerning control strategies, many models evaluated culling (n = 15), while vaccination received less attention (n = 6). According to the articles reviewed, optimal control strategies varied between virus subtypes and local conditions, and depended on the overall objective of the intervention. For instance, vaccination was optimal when the objective was to limit the overall number of culled flocks. In contrast, pre-emptive culling was preferred for reducing the size and duration of an epidemic. Early implementation consistently improved the overall efficacy of interventions, highlighting the need for effective surveillance and epidemic preparedness.
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  • 文章类型: Systematic Review
    连作(CC)是农业中的一种常见做法,通常由于土壤退化而造成严重的经济损失,作物产量和质量下降,疾病发病率增加,尤其是药用植物。连作障碍(CCOs)主要是由于土壤微生物群落的变化,营养可用性,和化感作用。最近,渐进的研究已经说明了CCO的分子机制,以及克服它们的有效策略。转录组学和代谢组学分析显示,已鉴定的DEGs(不同表达的基因)和参与CCO反应的代谢物参与各种生物过程,包括光合作用,碳代谢,次级代谢产物生物合成,和生物活性化合物。土壤改良是克服这一问题的有效策略。土壤改良剂可以通过增加有益微生物的丰度来改善微生物群落,土壤肥力,和营养可用性。在这次审查中,我们总结了药用植物中CCO的研究现状,转录组学和代谢组学研究的结合,和相关的控制策略,包括土壤改良剂的使用,作物轮作,和间作。最后,我们提出了理解CCO的未来研究趋势,以及克服这些障碍并促进药用植物可持续农业实践的战略。
    Continuous cropping (CC) is a common practice in agriculture, and usually causes serious economic losses due to soil degeneration, decreased crop yield and quality, and increased disease incidence, especially in medicinal plants. Continuous cropping obstacles (CCOs) are mainly due to changes in soil microbial communities, nutrient availability, and allelopathic effects. Recently, progressive studies have illustrated the molecular mechanisms of CCOs, and valid strategies to overcome them. Transcriptomic and metabolomics analyses revealed that identified DEGs (differently expressed genes) and metabolites involved in the response to CCOs are involved in various biological processes, including photosynthesis, carbon metabolism, secondary metabolite biosynthesis, and bioactive compounds. Soil improvement is an effective strategy to overcome this problem. Soil amendments can improve the microbial community by increasing the abundance of beneficial microorganisms, soil fertility, and nutrient availability. In this review, we sum up the recent status of the research on CCOs in medicinal plants, the combination of transcriptomic and metabolomics studies, and related control strategies, including uses of soil amendments, crop rotation, and intercropping. Finally, we propose future research trends for understanding CCOs, and strategies to overcome these obstacles and promote sustainable agriculture practices in medicinal plants.
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  • 文章类型: Journal Article
    禽弯曲杆菌病是一种破坏性感染,对人类健康造成危害。弯曲杆菌通常在禽类肠道中定植,在受感染的禽类中显示出轻度症状,但是零售鸡肉尸体的弯曲杆菌污染水平很高。因此,受污染的禽类产品是人类感染弯曲杆菌病的主要来源,并导致严重的临床症状,如腹泻,腹痛,痉挛,和敏感病例中的死亡。因此,本次审查旨在阐明肉鸡中弯曲杆菌的流行情况,弯曲杆菌定植,鸟类对弯曲杆菌的免疫力,家禽感染源,抗生素耐药性,禽肉污染,人类健康危害,以及在鸡肉加工过程中使用标准抗菌技术可能的控制策略来克服此类问题。
    Avian campylobacteriosis is a vandal infection that poses human health hazards. Campylobacter is usually colonized in the avian gut revealing mild signs in the infected birds, but retail chicken carcasses have high contamination levels of Campylobacter spp. Consequently, the contaminated avian products constitute the main source of human infection with campylobacteriosis and result in severe clinical symptoms such as diarrhea, abdominal pain, spasm, and deaths in sensitive cases. Thus, the current review aims to shed light on the prevalence of Campylobacter in broiler chickens, Campylobacter colonization, bird immunity against Campylobacter, sources of poultry infection, antibiotic resistance, poultry meat contamination, human health hazard, and the use of standard antimicrobial technology during the chicken processing of possible control strategies to overcome such problems.
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  • 文章类型: Review
    高级隔离单位(HLIUs)是专门设计的设施,用于护理和管理疑似或确诊的高危重传染病(HCID)患者。配备独特的基础设施和操作功能。虽然个别HLIUs发表了他们照顾HCID患者的经验,并且先前的两次HLIU共识努力概述了HLIUs的关键组成部分,我们旨在总结描述最佳实践的现有文献,这些专业设施的挑战和核心特征。使用与HLIU和HCID相关的关键词对文献进行了叙述性回顾。通过文献检索或参考检查或滚雪球等其他方法,在整个手稿中总共使用了100篇文章。文章被分类(例如,物理基础设施,实验室,内部运输);对于每个类别,对相关文献进行了综合,以描述最佳实践,经验和操作特点。回顾和总结HLIU的经验,最佳实践,挑战和组件可以作为单位继续提高战备状态的资源,或医院在发展他们的HLIU团队和规划或建设他们的单位的早期阶段。COVID-19大流行,全球爆发的水痘,欧洲和美国的病毒性出血热散发病例,以及最近爆发的拉沙热,苏丹埃博拉病毒,和马尔堡强调需要广泛总结HLIU做法,以告知准备和响应。
    High-level isolation units (HLIUs) are specially designed facilities for care and management of patients with suspected or confirmed high-consequence infectious diseases (HCIDs), equipped with unique infrastructure and operational features. While individual HLIUs have published on their experiences caring for patients with HCIDs and two previous HLIU consensus efforts have outlined key components of HLIUs, we aimed to summarise the existing literature that describes best practices, challenges and core features of these specialised facilities. A narrative review of the literature was conducted using keywords associated with HLIUs and HCIDs. A total of 100 articles were used throughout the manuscript from the literature search or from alternate methods like reference checks or snowballing. Articles were sorted into categories (eg, physical infrastructure, laboratory, internal transport); for each category, a synthesis of the relevant literature was conducted to describe best practices, experiences and operational features. The review and summary of HLIU experiences, best practices, challenges and components can serve as a resource for units continuing to improve readiness, or for hospitals in early stages of developing their HLIU teams and planning or constructing their units. The COVID-19 pandemic, a global outbreak of mpox, sporadic cases of viral haemorrhagic fevers in Europe and the USA, and recent outbreaks of Lassa fever, Sudan Ebolavirus, and Marburg emphasise the need for an extensive summary of HLIU practices to inform readiness and response.
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  • 文章类型: Systematic Review
    由于快速增长的乘客量和相对封闭的地下空间,地下地铁站(USS)的室内空气质量(IAQ)引起了更多公众的关注。USSs中的空气污染物,例如颗粒物(PM),CO2和挥发性有机化合物(VOCs),对乘客的健康有害。首先,本文对USS中空气污染物的特征和来源进行了系统的综述。根据审查工作,PM的浓度,CO2,VOCs,USSs中的细菌和真菌比世卫组织规定的容许浓度限值高1.1-13.2倍,ASHRAE和美国EPA。PM和VOC主要来自内部和室外来源。CO2浓度与乘客密度和通风率高度相关,而细菌和真菌的暴露水平取决于热条件和沉降的灰尘。然后,在线监控,总结了IAQ的故障检测和预测方法,并讨论了这些方法的优缺点。此外,审查了改善USSIAQ的可用控制策略,这些策略从不同的角度进行了分类和比较。最后,在COVID-19流行的背景下,IAQ管理面临的挑战以及对未来地下车站IAQ管理的几点建议。希望为进一步研究和设计USSs中大气污染物的有效预防措施提供全面的指导,以实现更可持续和健康的地下环境。
    Due to the rapidly increasing ridership and the relatively enclosed underground space, the indoor air quality (IAQ) in underground subway stations (USSs) has attracted more public attention. The air pollutants in USSs, such as particulate matter (PM), CO2 and volatile organic compounds (VOCs), are hazardous to the health of passengers and staves. Firstly, this paper presents a systematic review on the characteristics and sources of air pollutants in USSs. According to the review work, the concentrations of PM, CO2, VOCs, bacteria and fungi in USSs are 1.1-13.2 times higher than the permissible concentration limits specified by WHO, ASHRAE and US EPA. The PM and VOCs are mainly derived from the internal and outdoor sources. CO2 concentrations are highly correlated with the passenger density and the ventilation rate while the exposure levels of bacteria and fungi depend on the thermal conditions and the settled dust. Then, the online monitoring, fault detection and prediction methods of IAQ are summarized and the advantages and disadvantages of these methods are also discussed. In addition, the available control strategies for improving IAQ in USSs are reviewed, and these strategies are classified and compared from different viewpoints. Lastly, challenges of the IAQ management in the context of the COVID-19 epidemic and several suggestions for underground stations\' IAQ management in the future are put forward. This paper is expected to provide a comprehensive guidance for further research and design of the effective prevention measures on air pollutants in USSs so as to achieve more sustainable and healthy underground environment.
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