Environmental

Environmental
  • 文章类型: Journal Article
    微生物群落代谢输出的表征对于理解其功能至关重要。从宏基因组组装的基因组(MAG)构建基因组规模的代谢模型已经能够预测微生物群落的代谢物产生,然而,人们对它们的准确性知之甚少。这里,我们检查了从宏基因组中预测代谢物的两种方法的性能,一个是MAG指导的,另一个是分类学参考指导的。我们应用了来自人类和环境样本的鸟枪宏基因组学数据,并使用非靶向代谢组学在人类样本中验证了发现。我们发现在人体样本中,在分类学分析优化和参考基因组是现成的,当输入类群的数量被归一化时,参考指导方法比MAG指导方法预测更多的代谢物。这两种方法显示出明显的重叠,但每种方法鉴定的代谢物在另一种方法中没有预测。路径富集分析确定了基于该方法的数据得出的推论存在显着差异,强调在解释中需要谨慎。在环境样本中,当输入类群的数量被归一化时,对于两种样品类型中的总代谢物和海水样品中的非冗余代谢物,参考指导方法比MAG指导方法预测更多的代谢物.尽管如此,正如在人类样本中观察到的那样,这些方法基本上重叠,但也预测了在其他方法中未观察到的代谢物。我们的发现报告了互补输入对基因组规模代谢模型构建的实用性,该模型在MAG组装和细化之前计算强度较低,并且可以应用于无法生成MAG的浅层鸟枪测序。IMPORTANCELittle知道微生物群落的基因组尺度代谢模型(GEMs)的准确性,尽管它们对推断群落代谢输出和培养条件有影响。通过对来自人类和环境样品的shot弹枪宏基因组学数据应用两种方法,评估了GEM用于宏基因组代谢物预测的性能。并使用非靶向代谢组学验证人类样本中的发现。发现该方法的性能取决于样本类型,但总的来说,参考指导方法比MAG指导方法预测更多的代谢物。尽管存在差异,这些方法的预测基本重叠,但每种确定的代谢物在另一种中没有预测。我们发现基于该方法的生物学推论存在显着差异,当使用替代方法时,一组中的一些独特富集途径无效的例子,强调在解释GEM时需要谨慎。
    Characterization of microbial community metabolic output is crucial to understanding their functions. Construction of genome-scale metabolic models from metagenome-assembled genomes (MAG) has enabled prediction of metabolite production by microbial communities, yet little is known about their accuracy. Here, we examined the performance of two approaches for metabolite prediction from metagenomes, one that is MAG-guided and another that is taxonomic reference-guided. We applied both on shotgun metagenomics data from human and environmental samples, and validated findings in the human samples using untargeted metabolomics. We found that in human samples, where taxonomic profiling is optimized and reference genomes are readily available, when number of input taxa was normalized, the reference-guided approach predicted more metabolites than the MAG-guided approach. The two approaches showed significant overlap but each identified metabolites not predicted in the other. Pathway enrichment analyses identified significant differences in inferences derived from data based on the approach, highlighting the need for caution in interpretation. In environmental samples, when the number of input taxa was normalized, the reference-guided approach predicted more metabolites than the MAG-guided approach for total metabolites in both sample types and non-redundant metabolites in seawater samples. Nonetheless, as was observed for the human samples, the approaches overlapped substantially but also predicted metabolites not observed in the other. Our findings report on utility of a complementary input to genome-scale metabolic model construction that is less computationally intensive forgoing MAG assembly and refinement, and that can be applied on shallow shotgun sequencing where MAGs cannot be generated.IMPORTANCELittle is known about the accuracy of genome-scale metabolic models (GEMs) of microbial communities despite their influence on inferring community metabolic outputs and culture conditions. The performance of GEMs for metabolite prediction from metagenomes was assessed by applying two approaches on shotgun metagenomics data from human and environmental samples, and validating findings in the human samples using untargeted metabolomics. The performance of the approach was found to be dependent on sample type, but collectively, the reference-guided approach predicted more metabolites than the MAG-guided approach. Despite the differences, the predictions from the approaches overlapped substantially but each identified metabolites not predicted in the other. We found significant differences in biological inferences based on the approach, with some examples of uniquely enriched pathways in one group being invalidated when using the alternative approach, highlighting the need for caution in interpretation of GEMs.
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  • 文章类型: Editorial
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  • 文章类型: Journal Article
    欧洲制造公司必须应对新的法规,这些法规倡导更环保,更可持续的未来,减少排放,同时提高或至少保持其生产率水平。通过将2011-2017年期间不同公司污染物的信息与其财务信息相结合,构建了一个独特的数据集。采用非径向方向距离函数分析,具有期望和不期望的输出,以估计环境生产率增长及其组成部分,解决了异质性问题。还计算了一个监管影响指标,该指标提供了有关新政策造成的产出损失的信息。最后,使用面板向量自回归方法探讨了环境法规对生产率增长的影响。我们的研究结果展示了每个污染物组不同的生产率平均值。此外,结果表明,将法规指标提高1%,重金属和温室气体组的环境生产率提高0.24%和0.44%,分别。最后,结果支持“弱”波特假说,这证明了精心设计的环境法规可以对环境创新产生积极影响。
    European manufacturing firms have to cope with the new regulations that advocate a greener and more sustainable future with less emissions and at the same time enhance or at least maintain their productivity levels. A unique dataset is constructed by combining information on different firms\' pollutants with their financial information during the 2011-2017 period. A non-radial directional distance function analysis is adopted with desirable and undesirable outputs to estimate environmental productivity growth and its components, which addresses the problem of heterogeneity. A regulatory impact indicator that provides information about the loss of outputs resulting from new policies is also computed. Finally, the impact of environmental regulations on productivity growth is explored using a panel vector autoregressive method. Our findings showcase different average values of productivity for each pollutant group. Moreover, results indicate that increasing the index of regulations by 1%, increases environmental productivity by 0.24% and 0.44% for heavy metals and greenhouse gases groups, respectively. Finally, results support the \"weak\" Porter Hypothesis, which attests that welldesigned environmental regulations can exert a positive effect on environmental innovation.
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  • 文章类型: Journal Article
    再生骨料混凝土(RAC),主要由建筑和拆除废物(CDW)等回收材料制成,已成为天然骨料混凝土(NAC)的可持续替代品。虽然RAC在减少废物和节约资源方面提供了潜在的好处,与NAC相比,缺乏对其环境影响和可持续性的全面了解。本研究通过对RAC和NAC之间的比较生命周期评估(LCA)研究进行全面审查和分析来解决这一差距。本文综合了现有文献,以评估两种材料在其整个生命周期中对环境的影响。从原料提取到处理。它考察了能源消耗等关键因素,温室气体排放,和资源枯竭,以全面了解每种具体类型在其整个生命周期中对环境的影响。使用RAC作为可持续的具体选择的挑战,如采购和质量控制,还讨论了,以及对未来研究和行业实践的建议。研究结果表明,与NAC相比,RAC对环境的影响受到运输距离和方式的显着影响。此外,LCA中功能单元的选择极大地影响RAC和NAC之间的比较,具有强度可靠性,通过解决混凝土性质的可变性和更好地反映现实世界的条件,提供明显的好处。
    Recycled aggregate concrete (RAC), mainly made from recycled materials such as construction and demolition waste (CDW), has emerged as a sustainable alternative to natural aggregate concrete (NAC). While RAC offers potential benefits in waste reduction and resource conservation, a comprehensive understanding of its environmental impact and sustainability compared to NAC has been lacking. This study addresses this gap by conducting a thorough review and analysis of comparative Life Cycle Assessment (LCA) studies between RAC and NAC. This paper synthesizes current literature to evaluate the environmental impact of both materials throughout their life cycles, from raw material extraction to disposal. It examines key factors such as energy consumption, greenhouse gas emissions, and resource depletion to provide a thorough comprehension of the effects on the environment of each concrete type throughout their life cycles. Challenges in using RAC as a sustainable concrete option, such as sourcing and quality control, are also discussed, along with recommendations for future research and industry practices. The findings indicate that the environmental impact of RAC compared to NAC is significantly influenced by transport distances and modes. In addition, the choice of functional units in LCAs substantially affects the comparison between RAC and NAC, with strength reliability offering a clear benefit by addressing concrete property variability and better reflecting real-world conditions.
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  • 文章类型: Case Reports
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  • 文章类型: Journal Article
    目前,曝光研究包括大量不同的监测工具,包括遥感器,智能手机,组学分析,分布式滞后模型,等。暴露组和微生物群之间的结构相似性以及它们的功能使我们从这个角度提出了三个相关的问题,观察暴露组和微生物群之间的实际关系。就曝光而言,健康与疾病之间的双稳态平衡取决于不断应对不断变化的暴露总量,这些暴露共同塑造了一个人从受孕到死亡。关于科学知识,某些领域的曝光仍然滞后,比如微生物在方程式中的重要性。人类微生物组被定义为由我们与外部环境相关的表面所承载的肠道共生的集合。共同抵抗各种环境暴露,如抗生素管理,证实这些生物体的一层在宿主内受到保护。暴露组是一个概念框架,定义为受科学启发的系统意识形态的环境组成部分,从基于特异性的医学方法转变为复杂性方面的推理。人口健康研究和精确公共卫生的一个平行概念是人类繁荣指数,其目的是考虑影响个人和人口福祉的众多环境因素,超越环境污染。
    Currently, exposome studies include a raft of different monitoring tools, including remote sensors, smartphones, omics analyses, distributed lag models, etc. The similarity in structure between the exposome and the microbiota plus their functions led us to pose three pertinent questions from this viewpoint, looking at the actual relationship between the exposome and the microbiota. In terms of the exposome, a bistable equilibrium between health and disease depends on constantly dealing with an ever-changing totality of exposures that together shape an individual from conception to death. Regarding scientific knowledge, the exposome is still lagging in certain areas, like the importance of microorganisms in the equation. The human microbiome is defined as an aggregate assemblage of gut commensals that are hosted by our surfaces related to the external environment. Commensals\' resistance to a variety of environmental exposures, such as antibiotic administration, confirms that a layer of these organisms is protected within the host. The exposome is a conceptual framework defined as the environmental component of the science-inspired systems ideology that shifts from a specificity-based medical approach to reasoning in terms of complexity. A parallel concept in population health research and precision public health is the human flourishing index, which aims to account for the numerous environmental factors that affect individual and population well-being beyond ambient pollution.
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  • 文章类型: Journal Article
    采茶是一种常见的农业职业,通常在有陡坡和高海拔的山区进行。尽管在农业中使用了现代技术和机械化设备,茶的很大一部分收获仍然是传统的和身体上的艰苦。这种对体力劳动的依赖可能导致采茶农民发生肌肉骨骼疾病的可能性更高。
    这项研究的目的是调查采茶农民肌肉骨骼疾病的患病率和危险因素。
    在本综述研究中,我们分析了2010年3月10日至2023年11月10日(最后搜索日期)所有发表的关于采茶农民肌肉骨骼疾病患病率和影响因素的文章.我们使用关键词系统地搜索文章(风险因素,风险评估,下肢,上肢,肌肉骨骼疾病,采茶,姿势,手动处理,不适,人体工程学,患病率,农民)在PubMed,谷歌学者,SID,WebofScience,Scopus,马吉兰,伊朗Medex,科克伦图书馆,和Embase。使用混合方法评估工具(MMAT)评估文章的质量,2018版本。根据PRISMA声明指南,不相关的文章被排除在外,仅对与本研究直接相关的文章进行了综述。还利用灰色源和BASE数据库来识别灰色源。.
    最初,在不同的数据库中找到了128篇文章,共选出17篇文章进行最终评估。工人通常暴露于肌肉骨骼问题的身体主要区域是背部,手,手腕,肩膀,脖子,和膝盖。研究确定了四大类因素:个人,职业,环境,和导致肌肉骨骼问题的社会心理。这些因素包括在体力要求苛刻的环境中工作的妇女,举起沉重的收获茶的袋子,茶收集过程中的时间压力,使用收割工具重复的手部动作,田里茶树的高度,在潮湿和湿滑的条件下工作,不平坦的地面,延长工作时间,低薪,缺乏雇主的支持。
    人体工程学干预措施,例如重新设计采茶工具,加强茶树和工作空间,教授人体姿势和手动运动的人体工程学原理,建议通过轮岗和充分休息来组织工作,以减轻肌肉骨骼疾病症状。
    UNASSIGNED: Tea harvesting is a common agricultural occupation, usually conducted in mountainous regions with steep slopes and high altitudes. Despite the utilization of modern technology and mechanized equipment in agriculture, a substantial portion of tea harvesting continues to be traditional and physically strenuous. This dependence on manual labor can lead to a higher likelihood of musculoskeletal disorders among tea harvesting farmers.
    UNASSIGNED: The objective of this research was investigation of prevalence and risk factors of musculoskeletal disorders in tea harvesting farmers.
    UNASSIGNED: In this review study, we analyzed all published articles on the prevalence and factors influencing musculoskeletal disorders in tea harvesting farmers from March 10, 2010, to November 10, 2023 (last search date). We systematically searched for articles using keywords (risk factor, risk assessment, lower limb, upper limb, musculoskeletal disorders, tea harvesting, posture, manual handling, discomfort, ergonomics, prevalence, farmers) in PubMed, Google Scholar, SID, Web of Science, Scopus, Magiran, Iran Medex, Cochrane Library, and Embase. The quality of the articles was evaluated using the Mixed Methods Appraisal Tool (MMAT), 2018 version. Unrelated articles were excluded following PRISMA statement guidelines, and only articles directly related to the study were reviewed. GraySource and BASE databases were also utilized to identify Gray sources..
    UNASSIGNED: Initially, 128 articles were found across different databases, and a total of 17 articles were selected for the final assessment. The primary areas of the body that workers are commonly exposed to musculoskeletal issues are the back, hands, wrists, shoulders, neck, and knees. The research identified four main categories of factors: personal, occupational, environmental, and psychosocial that contribute to musculoskeletal problems. Among these factors are women working in physically demanding environments, lifting heavy bags of harvested tea, time pressures during tea collection, repetitive hand motions from using harvesting tools, the height of the tea plants in the field, working in wet and slippery conditions, uneven ground surfaces, extended working hours, low pay, and lack of support from employers.
    UNASSIGNED: Ergonomic interventions such as redesigning tea harvesting tools, enhancing tea plants and workspaces, teaching ergonomic principles of body posture and manual movement, and organizing work with job rotation and adequate rest are recommended to alleviate musculoskeletal disorder symptoms.
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  • 文章类型: Journal Article
    Trueperella(T.)化脓性是一种引起乳腺炎的病原体,以前已知会引起严重的临床乳腺炎(CM),尤其是在夏天,导致牛奶损失和低回收率。不幸的是,它在牛群内的传播行为尚不清楚。对化脓性产脓毒菌的多样性和发生进行了监测,以初步了解化脓性产脓毒菌在奶牛群中的感染传播行为,并为后续有针对性的调查奠定基础。CM牛奶样品是从德国牛群中收集的,并对一个瑞典农场进行了亚临床型乳腺炎分离株的取样。总而言之,从16个畜群中分离出151个化脓性产热杆菌,通过MALDITOF分析鉴定,并用RAPDPCR分型。其中,17个分离株起源于亚临床型乳腺炎病例。我们发现化脓性支原体乳腺炎全年发生,临床乳腺炎病例是由多种菌株引起的(31只受累动物/28株)。多头母牛感染相同的化脓性产热杆菌菌株的情况很少见,通常一次只涉及少量动物。然而,如果四分之一的奶牛受到影响,很可能是同样的菌株。与临床感染不同,亚临床化脓性衣原体感染,在一个被调查的农场里,带有优势菌株。此外,我们发现,在相同或不同的奶牛中,化脓性芽孢杆菌感染倾向于持续并在牛群中停留至少7个月。
    Trueperella (T.) pyogenes is a mastitis-causing pathogen formerly known to cause severe clinical mastitis (CM), especially during the summer, leading to milk losses and low recovery rates. Unfortunately, its transmission behavior within herds is unclear. The diversity and occurrence of T. pyogenes were monitored to gain an initial insight into the infection transmission behavior of T. pyogenes in dairy herds and to lay a foundation for following targeted investigations. CM milk samples were collected from German herds, and one Swedish farm was sampled for isolates from subclinical mastitis. All in all, 151 T. pyogenes isolates from 16 herds were isolated, identified by MALDI TOF analysis and typed with RAPD PCR. Of these, 17 isolates originated from subclinical mastitis cases. We found that T. pyogenes mastitis occurred year-round, and clinical mastitis cases were caused by multiple strains (31 affected animals/28 strains). Instances of multiple cows being infected with the same T. pyogenes strain were rare and typically only involved a small number of animals at a time. However, if several quarters of a cow were affected, it was likely the same strain. Unlike clinical infections, subclinical T. pyogenes infections, in one investigated farm, harbored a dominant strain. Additionally, we found that T. pyogenes infections tended to persist and stay within a herd for a minimum of 7 months in the same or different cows.
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  • 文章类型: Journal Article
    本研究项目扩展了以往的研究,从新加坡高等教育学生的角度分析了机构形象。这项工作建立在广泛的先前研究的基础上,研究了最近亚洲大流行和封锁的影响,这增加了新加坡作为亚洲学生学习目的地的受欢迎程度,特别是来自中国。被称为花园城市和亚洲最富有的城市之一,由于外国直接投资及其在马来西亚和印度尼西亚附近的战略位置,新加坡大幅增长。本研究旨在识别高等教育中的制度和城市形象维度,专注于新加坡六所公立大学中的三所。考察的关键因素包括机构形象,经济形象,社会形象,环境形象,感知教育质量,满意和忠诚。这些因素对于新加坡到2030年成为创新和人才强国的目标至关重要,并与国家科学技术进步计划保持一致。该研究还探讨了新加坡如何与美国等传统学习目的地竞争,英国,和澳大利亚。
    This research project expands on previous studies to analyze the institutional image from the perspective of higher education students in Singapore. The work builds on extensive prior research and examines the impact of the recent pandemic and lockdowns in Asia, which have increased Singapore\'s popularity as a study destination for Asian students, particularly from China. Known as the Garden City and one of Asia\'s wealthiest cities, Singapore has grown significantly due to foreign direct investment and its strategic location near Malaysia and Indonesia. This study aims to identify institutional and city image dimensions in higher education, focusing on three of Singapore\'s six publicly funded universities. The critical factors examined include Institutional Image, Economic Image, Social Image, Environmental Image, Perceived Educational Quality, and Satisfaction and Loyalty. These factors are crucial for Singapore\'s goal to become an innovation and talent powerhouse by 2030, aligning with national scientific and technological advancement plans. The research also explores how Singapore competes with traditional study destinations like the USA, Britain, and Australia.
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  • 文章类型: Journal Article
    职业性肺部/胸部疾病是全球主要的公共卫生问题。它们包括具有复杂病理的各种健康状况,其中大多数是在工作场所长期暴露于各种矿物质粉尘之后出现的,金属烟雾,或吸入有机颗粒反应后。许多职业性肺部疾病可能变得不可逆;因此,必须进行准确的诊断,以最大程度地减少粉尘暴露,从而减少对呼吸系统的损害。当暴露史与影像学不一致时,通常需要进行肺活检,在异常或新的暴露的情况下,在意外的恶性肿瘤的情况下,以及有人身伤害和法律赔偿要求的案件。在本文中,我们概述了最常见的职业性肺部疾病,重点是病理诊断。这是一篇总结了一组欧洲病理学家的专家意见的论文,以及对这些疾病的诊断和管理至关重要的其他专家的贡献。的确,由于许多职业性肺病被误诊或未被识别,因此所有参与检查的专家的紧密合作是强制性的。该文件为病理学家在实践中提供了指导,以促进职业性肺部疾病的准确诊断。这篇评论文章报道了在专家病理学家举办的教育课程中讨论的相关主题,欧洲病理学会肺病理学工作组的活跃成员。该课程被帕多瓦大学认可为“冬季学校”(2022年“塑造世界一流大学”的呼吁中选定的项目)。
    Occupational lung/thoracic diseases are a major global public health issue. They comprise a diverse spectrum of health conditions with complex pathology, most of which arise following chronic heavy workplace exposures to various mineral dusts, metal fumes, or following inhaled organic particulate reactions. Many occupational lung diseases could become irreversible; thus accurate diagnosis is mandatory to minimize dust exposure and consequently reduce damage to the respiratory system. Lung biopsy is usually required when exposure history is inconsistent with imaging, in case of unusual or new exposures, in case of unexpected malignancy, and in cases in which there are claims for personal injury and legal compensation. In this paper, we provide an overview of the most frequent occupational lung diseases with a focus on pathological diagnosis. This is a paper that summarizes the expert opinion from a group of European pathologists, together with contributions from other specialists who are crucial for the diagnosis and management of these diseases. Indeed, tight collaboration of all specialists involved in the workup is mandatory as many occupational lung diseases are misdiagnosed or go unrecognized. This document provides a guide for pathologists in practice to facilitate the accurate diagnosis of occupational lung disease. The review article reports relevant topics discussed during an educational course held by expert pathologists, active members of the Pulmonary Pathology Working Group of the European Society of Pathology. The course was endorsed by the University of Padova as a \"winter school\" (selected project in the call for \"Shaping a World-class University\" 2022).
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