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Natural sciences and environmental issues: a contribution from the philosophy of environmental sciences 自然科学与环境问题:环境科学哲学的贡献
Q4 Business, Management and Accounting Pub Date : 2017-11-26 DOI: 10.1504/IJENVH.2017.088112
Gabriela Klier, Tomás Emilio Busan, Federico Martín di Pasquo, Paula Blois, Christian Federico Francese, G. Folguera
The environmental issue has been considered a 'starting point' for certain epistemological transformations that aim at rethinking the way of performing science and interpreting the nature-society relationship. In this paper, we will explore controversial disputes in the natural science field through the analysis of a particular case study: the socio-environmental issues (SEIs) in the Argentinean Gran Chaco. Analysing the relation between scientific problems and SEIs and the traditional scientific approximations, our conclusions point that environmental issues arouse challenges to the sciences, to the way they are thought of, situated and built. They make manifestation of the idea that it is crucial to recover the 'for what' of the scientific practice, building a science that dialogues with other voices and with a starting point in local and situated problems.
环境问题被认为是某些认识论转变的“起点”,这些转变旨在重新思考科学的表现方式和解释自然与社会的关系。在本文中,我们将通过分析一个特定的案例研究来探讨自然科学领域中有争议的争议:阿根廷大查科的社会环境问题。通过分析科学问题与SEI和传统科学近似之间的关系,我们的结论指出,环境问题对科学及其思考、定位和构建方式提出了挑战。他们体现了这样一种观点,即恢复科学实践的“为了什么”至关重要,建立一种与其他声音对话的科学,并以当地和所处问题为出发点。
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引用次数: 3
Performance evaluation of aerobic reactor and Sarcocornia perennis to reduce the COD and chloride of effluents from tanning sheepskins 好氧反应器和多年生棘藻降低羊皮制革废水COD和氯离子的性能评价
Q4 Business, Management and Accounting Pub Date : 2017-11-26 DOI: 10.1504/IJENVH.2017.088125
L. Cortizo, N. Scelsio, Sergio Perotti, J. Martegani, Laura Maria Isabel Lopez
Tannery is an industry that generates wastewater characterised by high levels of organic matter, chrome, dissolved solids, sulphides and high salinity. The aim of this work was to evaluate at laboratory scale, the decrease of chemical oxygen demand (COD) and salinity from effluents from tanning sheepskins, using physical chemical methods in primary treatment, and bioreactor and wetlands for secondary and tertiary treatment, respectively. Effluents were collected from tanning processes of sheepskins carried out on the Center of Research and Technology on leather tannery plant, La Plata, Argentina. Conventional primary treatments selecting coagulants and flocculants were employed. For secondary treatment, batch bioreactors were designed, and the maximum COD removal was 60-70%. For the tertiary treatment, wetlands at laboratory scale were employed. In this test wetlands were filled with granite stone, with and without the plant Sarcocornia perennis, and COD decreased on average by 64% additional and chlorides concentration decreased by around 15%.
制革业是一个产生废水的行业,其特点是有机物、铬、溶解固体、硫化物含量高,盐度高。这项工作的目的是在实验室规模上评估制革羊皮废水的化学需氧量(COD)和盐度的降低,在一级处理中使用物理化学方法,在二级和三级处理中分别使用生物反应器和湿地。废水是在阿根廷拉普拉塔皮革制革厂研究与技术中心进行的羊皮制革过程中收集的。采用了选择絮凝剂和絮凝剂的常规初级处理。对于二次处理,设计了间歇式生物反应器,COD的最大去除率为60-70%。三级处理采用了实验室规模的湿地。在该试验中,湿地被花岗岩填充,有或没有植物Sarcocornia perennis,COD平均额外降低64%,氯化物浓度降低约15%。
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引用次数: 0
Metals and metalloids in mussels from the Argentine Patagonia 阿根廷巴塔哥尼亚贻贝中的金属和类金属
Q4 Business, Management and Accounting Pub Date : 2017-11-26 DOI: 10.1504/IJENVH.2017.10008937
A. A. Pérez, M. Fajardo, S. Farías, A. M. Strobl, S. Camarda, B. Garrido, Fiorella Alassia
Mussels are bioaccumulative organisms that are used to monitor marine environments. The levels of 19 metals and metalloids were determined in Mytilus edulis platensis in three sites of the San Jorge Gulf: Bahia Solano (BS), Punta Maqueda (PM) and Km 3 (KM3). The limit values of contaminants As: 16; Cd: 3.7; Cu: 10; Ni: 3.4; Pb: 3.2 and Zn: 200, in μg/g dry weight, were not reached in the sampling sites, except for Cd in PM. The principal component analysis (PCA) showed a relationship between PM and high levels of Cd, between KM3 and high levels of Al, Cu, Pb and Zn, and between BS and high levels of Be, B, Sr and Ag. These results have contributed to the establishment of the state of situation in the spring of 2010 for 19 elements, which could be used in future studies of monitoring and assessment of the environmental risk owing to metal and metalloid contamination in the coasts of Argentine Patagonia.
贻贝是用于监测海洋环境的生物累积性生物。在圣乔治湾的三个地点:巴伊亚索拉诺(BS)、蓬塔马奎达(PM)和Km 3(KM3)测定了高原贻贝中19种金属和类金属的含量。污染物限值As:16;Cd:3.7;Cu:10;镍:3.4;除PM中的Cd外,采样点未达到Pb:3.2和Zn:200(单位:μg/g干重)。主成分分析(PCA)表明,PM与高水平Cd之间,KM3与高水平Al、Cu、Pb和Zn之间,BS与高水平Be、B、Sr和Ag之间存在关系。这些结果有助于确定2010年春季19种元素的状况,可用于未来对阿根廷巴塔哥尼亚海岸金属和类金属污染造成的环境风险进行监测和评估的研究。
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引用次数: 4
Assessment of environmental and radiological health hazards due to heavy metals and radionuclides contents in utility water reservoirs' sediments 公用水库沉积物中重金属和放射性核素含量对环境和放射性健康危害的评估
Q4 Business, Management and Accounting Pub Date : 2017-08-31 DOI: 10.1504/IJENVH.2017.10007150
O. M. Isinkaye, J. I. Agbi, Y. Ajiboye, R. Obasi
Heavy metals and natural radionuclides in sediments of Awara and Osse reservoirs, Ondo State, Nigeria have been measured using X-ray fluorescence and γ-ray spectrometry techniques. Heavy metals detected in the two reservoirs include K, Ca, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn, As, Ba, Pb and Th. The average concentrations of the measured heavy and trace metals in the sediment of Awara dam vary as Fe>K>Ca>Mn>Ti> Sr>Cr>V>Rb>Zn>Ni>Cu while those of Osse dam vary as Ba>K>Fe>Ca> Mn>Sr>Ti>V>Rb>Cr>Zn>Ni>Th>Pb>Cu. Geoaccumulation index and enrichment factor evaluation of potentially toxic heavy metal contents in both reservoirs revealed that the two reservoirs are uncontaminated with hazardous heavy metals. Naturally occurring radionuclides (40K and 232Th) detected in the two reservoirs show values that are higher than their mean crustal value, while 226Ra is lower than the world mean crustal value. There is little or no ecological or radiological risk associated with the sediment of the two reservoirs.
利用x射线荧光和γ射线光谱技术测量了尼日利亚Ondo州Awara和Osse水库沉积物中的重金属和天然放射性核素。两个储层中检测到的重金属有K、Ca、Ti、V、Cr、Mn、Fe、Ni、Cu、Zn、As、Ba、Pb和Th。阿瓦拉坝沉积物中重金属和微量元素的平均含量为Fe>K>Ca>Mn>Ti> Sr>Cr>V>Rb>Zn>Ni>Cu, Osse坝沉积物中重金属和微量元素的平均含量为Ba>K>Fe>Ca> Mn>Sr>Ti>V>Rb>Cr>Zn>Ni>Th>Pb>Cu。对两个储层的潜在毒性重金属含量进行地聚集指数和富集因子评价,表明两个储层均未受到有害重金属的污染。在两个储层中检测到的天然放射性核素(40K和232Th)高于其地壳平均值,而226Ra低于世界地壳平均值。这两个水库的沉积物几乎没有或根本没有生态或辐射风险。
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引用次数: 0
New strategies in ecotoxicology and toxicogenomics 生态毒理学和毒理学基因组学的新策略
Q4 Business, Management and Accounting Pub Date : 2017-08-31 DOI: 10.1504/IJENVH.2017.10007152
A. Salibián
New methodologies are being designed to describe and study the toxicity profiles of environmental compartments as well as their impacts on their biotic communities. Classical toxicology is enriched with suborganismic and subcellular techniques, which allow a detailed knowledge of the effects and mechanisms of action of the toxicants in the ecosystemic compartments. These advances have been achieved with contributions from the Omic Sciences, which allowed a more detailed evaluation of the structural and functional changes provoked by the toxics. Thus, toxicogenomics was structured, which with the help of bioinformatics, is recognised as complementary to the information provided by toxicology. More recently, toxicogenomics was associated with ecotoxicology, contributing to a more detailed understanding and interpretation of the adverse environmental impacts of anthropic origin in the context of a new subdiscipline (ecotoxicogenomics). These advances will also contribute to the design of new environmental regulatory protocols.
正在设计新的方法来描述和研究环境分区的毒性概况及其对生物群落的影响。经典毒理学富含亚生物和亚细胞技术,可以详细了解毒物在生态系统区室中的作用和机制。这些进展是在奥密克科学的贡献下取得的,这使得人们能够更详细地评估毒素引起的结构和功能变化。因此,毒理学基因组学是结构化的,在生物信息学的帮助下,它被认为是对毒理学提供的信息的补充。最近,毒代基因组学与生态毒理学相关联,有助于在一个新的子学科(生态毒理学)的背景下更详细地理解和解释人类起源的不利环境影响。这些进展也将有助于设计新的环境监管协议。
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引用次数: 0
Toxicogenomics: new strategies for ecotoxicology studies in autochthonous species I. A glade in the entangled path towards the 'fingerprint' of environmental impact? 毒素基因组学:本地物种生态毒理学研究的新策略I.在通往环境影响“指纹”的纠缠道路上的一片空地?
Q4 Business, Management and Accounting Pub Date : 2017-08-31 DOI: 10.1504/IJENVH.2017.10007145
A. Venturino
The search for early and sensitive biomarkers pointing to toxic effects of contaminants over organisms has led the state-of-the-art to the molecular mechanisms of signalling, target and response. The trial to obtain more specific biomarkers of response to toxicants was, in general, biased by the finding of multiple crosstalks between signalling and the transcription factor regulation on gene expression. Molecular biomarkers of toxicity generally show higher sensitivity and precocity in the response, whereas classical biomarkers such as cholinesterases in organisms exposed to anticholinesterasic agents may show 'inconsistent' responses. The use of non-model aquatic organisms, in general, defies the application of commercially available antibodies and implies the design of primers for gene expression studies from model species sequences. The application of transcriptomics has opened a new way to gene annotation and for the design of adequate molecules as tools for the research in new biomarkers in autochthonous species.
寻找早期和敏感的生物标志物,指出污染物对生物体的毒性影响,使信号、靶点和反应的分子机制达到了最先进的水平。总的来说,由于信号传导和转录因子对基因表达的调节之间存在多重交叉,获得对毒物反应的更特异性生物标志物的试验存在偏差。毒性的分子生物标志物通常在反应中表现出更高的敏感性和早熟性,而暴露于抗胆碱酯酶药物的生物体中的经典生物标志物,如胆碱酯酶,可能表现出“不一致”的反应。一般来说,使用非模式水生生物违背了商业上可获得的抗体的应用,并意味着根据模式物种序列设计用于基因表达研究的引物。转录组学的应用为基因注释和设计足够的分子作为研究本地物种新生物标志物的工具开辟了一条新的途径。
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引用次数: 2
Comparative toxicity of endosulfan and diazinon on the embryo-larval development of the South American toad, Rhinella arenarum 硫丹和二嗪农对南美蟾蜍胚胎幼虫发育的比较毒性
Q4 Business, Management and Accounting Pub Date : 2017-08-31 DOI: 10.1504/IJENVH.2017.10007149
Carolina M. Aronzon, G. Svartz, C. P. Coll
The toxicities of endosulfan and diazinon were comparatively analysed on the early development of the South American toad, Rhinella arenarum. Pesticides varied greatly in their effects on survival, with concentration-, time- and stage-dependent sensitivity. Endosulfan was 227 times more toxic than diazinon. The larval period was the most sensitive for both pesticides (LC-504 h: 0.01 mg L-1 and 1.92 mg L-1 for endosulfan and diazinon, respectively). Endosulfan toxicity increased 587 and 60 times from acute to chronic exposure in treatments with embryos and larvae, respectively, while diazinon toxicity increased about four and five times, respectively. Both pesticides caused important neurotoxic effects expressed as behavioural disturbances. Risk evaluation assessed by hazard quotient (HQ) was over 1, the level of concern (LOC), for both pesticides at chronic exposure periods and even at acute endosulfan exposure. Results obtained in the present study highlight that these pesticides should be considered potential threats for this species.
比较分析了硫丹和二嗪农对南美蟾蜍(Rhinella arenarum)早期发育的毒性。农药对生存的影响差异很大,其敏感性取决于浓度、时间和阶段。硫丹的毒性是二嗪农的227倍。幼虫期对这两种农药最敏感(LC-504小时:硫丹和二嗪农分别为0.01 mg L-1和1.92 mg L-1)。在胚胎和幼虫的处理中,硫丹的毒性从急性到慢性分别增加了587倍和60倍,而二嗪酮的毒性分别增加了约4倍和5倍。这两种杀虫剂都会产生重要的神经毒性作用,表现为行为障碍。在长期暴露期,甚至在急性硫丹暴露期,通过危害商(HQ)评估的风险评估都超过了1,即关注水平(LOC)。本研究的结果强调,这些杀虫剂应被视为对该物种的潜在威胁。
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引用次数: 1
Toxicogenomics: new strategies for ecotoxicology studies in autochthonous species II. The 'omic' era in non-model species. Transcriptome analysis for biomarker screening 毒素基因组学:本地物种生态毒理学研究的新策略II。非模式物种的“omic”时代。用于生物标志物筛选的转录组分析
Q4 Business, Management and Accounting Pub Date : 2017-08-31 DOI: 10.1504/IJENVH.2017.10007146
D. Ceschin
The emerging field of ecotoxicogenomics aims to combine large-scale approaches to study the responses of organisms to a toxicant. A holistic vision of gene and protein expression in response to toxic exposure contributes to the identification of cellular components, signalling pathways and novel mechanisms of action/response. Native species are preferential for evaluating the impact of contaminants generated by anthropic action. However, biomonitoring using autochthonous species (non-model organisms) is difficult owing to a deficiency of molecular biology data and analytical tools. Our experience in the study of biomarkers in the South American toad Rhinella arenarum revealed many difficulties of finding antibodies or designing probes for it. We performed a transcriptomic study in R. arenarum exposed to two organophosphorus pesticides. We determined that there are specific patterns of gene expression for each organophosphate tested. Thus, a transcriptome approach for biomarker screening seems to be helpful in defining specific gene expression behaviour for a given toxicant.
生态毒物基因组学这一新兴领域旨在结合大规模方法来研究生物体对毒物的反应。对毒性暴露反应中基因和蛋白质表达的全面研究有助于识别细胞成分、信号通路和新的作用/反应机制。在评价人为活动产生的污染物的影响时,首选本地物种。然而,由于缺乏分子生物学数据和分析工具,使用本地物种(非模式生物)进行生物监测是困难的。我们在南美蟾蜍Rhinella arenarum生物标志物研究中的经验表明,在寻找抗体或设计探针方面存在许多困难。我们对暴露于两种有机磷农药的沙砂蒿进行了转录组学研究。我们确定,有特定模式的基因表达的每一个有机磷酸盐测试。因此,生物标志物筛选的转录组方法似乎有助于确定特定毒物的特定基因表达行为。
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引用次数: 5
Fagioli's human birth theory and the possibility to cure mental illness 法吉奥利的人类出生理论以及治疗精神疾病的可能性
Q4 Business, Management and Accounting Pub Date : 2017-08-31 DOI: 10.1504/IJENVH.2017.10007153
Irene Calesini
This paper deals with Fagioli's human birth theory and its implications on mental health. The first relevance of his theory lies in the discovery and formulation that human life and psychic activity begin at birth, with the reaction of the biological matter to light, an inanimate reality which is absent in the foetal condition. The dynamics that this theory demonstrates is common to all human beings as it represents the physiology of birth, in which body and mind arise together. Since his first book 'Death Instinct and Knowledge' (1972), Fagioli stated that mental illness is not a condition men are destined to, but rather a pathology that can be treated and cured through psychotherapy. Mental illness is a disease affecting the irrational, non-conscious dimension, determined by a deficiency of affection in early human relationships. This psychotherapeutic approach could provide new perspectives and possibilities for healthcare services and prevention policies.
本文论述了法焦利的人类出生理论及其对心理健康的启示。他的理论的第一个相关性在于发现和公式化,即人类的生命和心理活动始于出生,伴随着生物物质对光的反应,这是胎儿状态下不存在的无生命现实。这一理论所展示的动力学对所有人类来说都是共同的,因为它代表了出生的生理学,身体和思想在其中共同产生。自1972年出版的第一本书《死亡本能与知识》(Death Instinct and Knowledge)以来,法焦利就指出,精神疾病不是人类注定要患的疾病,而是一种可以通过心理治疗治愈的病理。精神疾病是一种影响非理性、无意识维度的疾病,由早期人际关系中缺乏情感决定。这种心理治疗方法可以为医疗服务和预防政策提供新的视角和可能性。
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引用次数: 3
Territory and management science: new insights by the ConsulCubo model 地域与管理科学:ConsulCubo模型的新见解
Q4 Business, Management and Accounting Pub Date : 2017-05-05 DOI: 10.1504/IJENVH.2017.10004794
Cristina Simone, M. Calabrese
Globalisation exacerbates the need to conceive sustainable and shared solutions to the dramatic environmental, social and economic issues at a local level, i.e., for a specific territory. Satisfying this need asks for a decision-making processes awareness of the specific environmental, social and economic features of the territory itself. The paper starts debating the challenge to linking effectiveness and efficiency with a viable sustainability at a local level (par. 1); then, after discussing the vision of the territory in the economic literature (par.2), the work firstly offers deeper insights in understanding the complex nature of the territory according to the viable system approach (VSA) (par. 3) and secondly it proposes a new model, the ConsulCubo VSA, helpful to support the decision-makers facing the increasing challenge of an effective, efficient and sustainable management of territory (par 4); final remarks are then discussed and fully debated (par. 5).
全球化加剧了在地方一级,即某一特定地区,构想可持续和共同解决重大环境、社会和经济问题的需要。要满足这一需求,就需要在决策过程中意识到领土本身的具体环境、社会和经济特征。该文件开始讨论在地方一级将效力和效率与可行的可持续性联系起来的挑战(第1段);然后,在讨论了经济文献中的领土愿景(第2部分)之后,该工作首先根据可行系统方法(VSA)(第3部分)提供了更深入的见解,以理解领土的复杂性,其次,它提出了一个新的模型,ConsulCubo VSA,有助于支持决策者面对有效,高效和可持续的领土管理日益严峻的挑战(第4部分);最后的评论,然后讨论和充分辩论(第5段)。
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引用次数: 4
期刊
International Journal of Environment and Health
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