probabilistic risk assessment using species sensitivity distributions
Species Sensitivity Distributions in Ecotoxicology - Section 1 ppsx
Ngày tải lên :
11/08/2014, 10:22
... Ecological Risk Assessment Based on Species Sensitivity Distributions Nico M van Straalen Chapter Normal Species Sensitivity Distributions and Probabilistic Ecological Risk Assessment Tom Aldenberg, Joanna ... Scott-Fordsmand and John Jensen © 2002 by CRC Press LLC B Ecological Risk Assessment Chapter 15 Probabilistic Risk Assessment Using Species Sensitivity Distributions Keith R Solomon and Peter Takacs Chapter ... from Species Sensitivity Distributions with Known Standard Deviation Tom Aldenberg and Robert Luttik © 2002 by CRC Press LLC Chapter Species Sensitivity Distributions in Ecological Risk Assessment: ...
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Species Sensitivity Distributions in Ecotoxicology - Section 2 pdf
Ngày tải lên :
11/08/2014, 10:22
... Ecological Risk Assessment Based on Species Sensitivity Distributions Nico M van Straalen CONTENTS 4.1 Introduction 4.2 Derivation of Ecological Risk 4.3 Probability Generating Mechanisms 4.4 Species Sensitivity ... Normal Species Sensitivity Distributions and Probabilistic Ecological Risk Assessment Tom Aldenberg, Joanna S Jaworska, and Theo P Traas CONTENTS 5.1 5.2 5.3 5.4 Introduction The Normal Species Sensitivity ... frequency, or a probability Risk assessment using species sensitivity distributions (SSDs) focuses on one possible undesired event, the exposure of an arbitrarily chosen species to an environmental...
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Species Sensitivity Distributions in Ecotoxicology - Section 3 ppt
Ngày tải lên :
11/08/2014, 10:22
... (3) assessment of ecotoxicological effects The DHTDMAC case was the first case in which extrapolation methodologies based on Species Sensitivity Distributions (SSDs) were applied in risk assessment ... Priority List of Existing Chemicals for risk assessment (RA) under the European Existing Chemicals Regulation (793/93) Using EUSES (based on the EU Risk Assessment Technical Guidance Document; ... sediment toxicity data are generated and a final risk assessment report will be published by ECETOC © 2002 by CRC Press LLC 11 Use of Species Sensitivity Distributions in the Derivation of Water Quality...
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Species Sensitivity Distributions in Ecotoxicology - Section 4 (end) doc
Ngày tải lên :
11/08/2014, 10:22
... Environmental Quality Criteria 21.1.2 SSDs for Ecological Risk Assessment 21.1.2.1 Assessment Endpoints and the Definition of Risk 21.1.2.2 Ecological Risk Assessment of Mixtures 21.1.3 Probability of Effects ... Combining Chemicals in Distributions Selection of Protection Levels Risk Assessment Issues 21.7.1 Exposure 21.7.2 Ecological Issues 21.7.3 Joint Distributions of Exposure and Species Sensitivity The ... Database Needs 22.9 Toxicological Risks and Multiple Stress Conditions Acknowledgments Abstract — Species sensitivity distributions (SSDs) have been adopted in various risk assessment frameworks, despite...
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Báo cáo y học: " Risk assessment of pre-hospital trauma airway management by anaesthesiologists using the predictive Bayesian approach" pptx
Ngày tải lên :
13/08/2014, 23:21
... Nemeth C: Assessing risk: the role of probabilistic risk assessment (PRA) in patient safety improvement Qual Saf Health Care 2004, 13:206-212 25 Eidesen K, Sollid SJ, Aven T: Risk assessment in critical ... are presented in a risk matrix, where we defined four main categories with five different frequencies/probability categories Risk influencing factors Uncertainty assessment and sensitivity analysis ... sensitivity analysis We then incorporated risk influencing factors into the risk description to include human and organisational factors in the assessment The risk influencing factors were defined...
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landslide hazard and risk assessment for road network using rs and gis a case study of xin man district, vietnam
Ngày tải lên :
03/10/2014, 13:14
... hazard zonation for buffer area in Xin Man Risk of slope in Xin Man’s Road Network Risk of distance to Xin Man’s road network Risk in Xin Man Risk assessment for road network in Xin Man ix 19 ... Vulnerability Structural Vulnerability Vulnerability Assessment Land Vulnerability Funtional Vulnerability Risk Assessment Figure 2.1: Criteria for risk assessment (Disaster Preparedness and Mitigation-2002) ... simple algorithms were used to classify the area into different risk zones By combining all the risk maps using GIS techniques, final risk maps were produced which take into account all above factors...
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Statistical Methods of Valuation and Risk Assessment: Empirical Analysis of Equity Markets and Hedge Fund Strategies
Ngày tải lên :
16/04/2013, 20:00
... Integrated Risk Management (London: Risk Books) Mina J., and J.Y Xiao (2001), Return to RiskMetrics: The Evolution of a Standard, Discussion paper, RiskMetrics Group, New York, available from www.riskmetrics.com ... first described the Riskometer as a tool that returns the different Value-atRisk and related measures of risk (expected shortfall, volatility) for major equity market indices using standard methods ... situation Quantification of Equity Market Risk: Riskometer 2.1 Introduction The ETHZ Riskometer consists of a web-based tool which was designed and implemented using a statistical methodology implemented...
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Risk Assessment of Fenthion Oxide Derivatives in Aqueous Environment
Ngày tải lên :
05/09/2013, 10:15
... sulfone were not detected on chromatograms by HPLC/UV and GC/MS Thus, we compared sensitivity on metabolites using GC/MS and LC/MS, and set the limit of detection of MPP sulfoxide, MPP sulfone, ... pronounced adverse effect followed by MPP oxon sulfoxide, and then MPP oxon Consequently, human risk assessment for MPP must be done on the basis of the contributions of its oxides The stability ... aqueous environment and in tap water is an important matter for health assessment from the viewpoint of controlling water purity and risk management ACKNOWLEDGMENT This work was supported by Grants-in-Aid...
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Radiological risk assessment for Al-Twuaitha nuclear site in Iraq
Ngày tải lên :
05/09/2013, 16:10
... most influence parameters Conclusion The risk assessment and sensitivity analysis charts shows significant risk for the selected hotspots zones The total risk is dominated by effect of the hotspot ... pp.409-414 413 Figure Risk and sensitivity analysis for the contaminated hotspots Sensitivity analysis performed to determine which parameter has the greatest effect on model estimations Sensitivity charts ... model sensitivity) Sensitivity analyses allow studying the contribution of individual risk factors to the variance of the target forecast Thus, the question of what are the most important risk...
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Practical industrial safety, risk assessment and shutdown systems, elsevier (2003)
Ngày tải lên :
02/01/2014, 09:47
... bruises! Risk = X briiisesl Risk reduction: Limit bouncers to per over Wear more pads Risk -^ ^ siiial! bruise! L^, Figure 1.2 Risk reduction: the fast bowler 1.5.1 Risk reduction The reduction of risk ... Machinery - Principles of Risk Assessment Description: The standard establishes general principles for risk assessment, and gives guidance on the information required to allow risk assessment to be carried ... Identified I Risk ^dfcs Estimatedtalculated Tolerable Risk Established Risk Reduction I Safety Function Defined Figure 1.3 Risk reduction: design principles The concept of tolerable risk is illustrated...
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Tài liệu Don’t navigate risky waters without internal auditors: Guidance on leveraging audit analytics for risk assessment pptx
Ngày tải lên :
18/02/2014, 05:20
... Don’t navigate risky waters without internal auditors Build a profile of potential risks Develop a profile of potential risks as part of a risk assessment Consider using a risk scorecard ... help pinpoint areas of risk for management? And how you become more efficient and effective at pinpointing risk assessments? However, the problem with focusing more on risk is that you stop paying ... cross-departmental view of risk Within the COSO-based risk management framework, management’s role is to a top-down risk assessment for their organization and identify risks that are likely to...
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Tài liệu Báo cáo khoa học: "Enhanced word decomposition by calibrating the decision threshold of probabilistic models and using a model ensemble" pdf
Ngày tải lên :
20/02/2014, 04:20
... decomposition and are based on probabilistic methods by incorporating a probabilistic generative model.1 Their parameters can be estimated from either labelled data, using maximum likelihood estimates, ... could be g → e We Probabilistic generative model Intuitively, we could say that our models describe the process of word generation from the left to the right by alternately using two dice, the ... a word form whereas we are describing a generative process using morpheme boundaries and resulting letter transitions Moreover, our probabilistic models seem to resemble Hidden Markov Models...
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Tài liệu Báo cáo khoa học: "Reading Level Assessment Using Support Vector Machines and Statistical Language Models" pdf
Ngày tải lên :
20/02/2014, 15:20
... Reading Level Assessment This section highlights examples and features of some commonly used measures of reading level and discusses current research on the topic of reading level assessment using NLP ... Mellon University have applied probabilistic language modeling techniques to this task Si and Callan (2001) conducted preliminary work to classify science web pages using unigram models More recently, ... (1) The parameters of the model are estimated using a maximum likelihood estimate based on the observed frequency in a training corpus and smoothed using modified Kneser-Ney smoothing (Chen and...
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Communicable disease risk assessment and interventions ppt
Ngày tải lên :
05/03/2014, 12:20
... (SEARO); WHO Office, Myanmar CD risk assessment and interventions: Cyclone Nargis, Myanmar, Updated May 27 2008 Acknowledgements This communicable diseases risk assessment was edited by the unit ... see section 4, Dengue) Malaria risk exists in Myanmar throughout the year: 29% of the population live in high risk areas, 24% in moderate risk areas and 18% in low risk areas Apart from those living ... Diseases Department (SEARO); WHO Office, Myanmar CD risk assessment and interventions: Cyclone Nargis, Myanmar, Updated May 27 2008 BACKGROUND AND RISK FACTORS Myanmar is the largest country in mainland...
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A Knowledge-Based Approach to Network Security: Applying Cyc in the Domain of Network Risk Assessment pptx
Ngày tải lên :
05/03/2014, 23:20
... the complexity of upgrading the Sentinels over time CycSecure’s architecture is not dependent on using Sentinels It could also utilize third-party daemons that may have already solved some of these ... administrator/root access to target.mynetwork.net.” The user then examines the plans returned, using the browser to get more detail about any interesting or unclear steps or components (We discuss ... would be too verbose to be useful The hierarchy of program types is also used in vulnerability assessment and planning, since the same kind of software fault can lead to different vulnerabilities,...
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biểu đồ ma trận – biểu đồ rủi ro, risk assessment matrix chart
Ngày tải lên :
12/03/2014, 16:52
... – BIỂU Risk Ồ MA TRẬN3D ĐỒ RỦI RO Phụ tiêu đề Tiêu đề MEDIUM RISK Rủi ro vừa 1.Mô tả nội dung 2.Dữ liệu có HIGH RISK Rủi ro cao LOW RISK Rủi ro thấp CRITICAL RISK Nguy quan trọng MEDIUM RISK Rủi ... Rủi ro vừa 4.… 5.… 6.… 7.… 8.… KHẢ NĂNG - LIKELIHOOD 3.Ghi LOW RISK Rủi ro thấp LOW RISK Rủi ro thấp HIGH RISK Rủi ro cao MEDIUM RISK Rủi ro vừa TÁC ĐỘNG - IMAPACT Nội dung Nội dung Nội dung -...
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A meta analysis and risk assessment of heavy metal uptake in common garden vegestable
Ngày tải lên :
15/03/2014, 23:10
... detection limit (θ) + β Equation Risk Assessment Risk was estimated using equations (Equation 4) from the U.S Environmental Protection Agency’s (USEPA) Risk Assessment Guidance for Superfund, ... 1999) Risk assessment is done in steps or stages EPA (1989) and DOE-ORO (1999) designate the stages as: 1) data compilation and evaluation, 2) exposure assessment, 3) toxicity assessment, and 4) risk ... identify risk In the past, risk assessments often been based on one representative study, usually one that shows high risk Meta-analysis can provide a more accurate approximation of the degree of risk...
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TOXICITY-PATHWAY-BASED RISK ASSESSMENT PREPARING FOR PARADIGM CHANGE docx
Ngày tải lên :
16/03/2014, 14:20
... and using them in risk assessments Thomas compared reference doses and risk- specific doses derived from transcriptional BMDL values with comparable risk- assessment values from EPA’s Integrated Risk ... determining the probability of whether a chemical causes an effect is hazard assessment, not risk assessment; risk assessment requires a dose-response component, which is where the issue of metabolism ... (2009) Science and Decisions: Advancing Risk Assessment (2009) Phthalates and Cumulative Risk Assessment: The Tasks Ahead (2008) Estimating Mortality Risk Reduction and Economic Benefits from...
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Biosafety & risk assessment in agricultural biotechnology
Ngày tải lên :
16/03/2014, 18:11
... poses no risk Other considerations such as dose response (a measure of the level of potential impact) and risk characterization (severity of con- Risk Assessment is Subjective Although risk assessment ... may be likely as well By conducting several rounds Risk Assessment 27 Additional Information Figure The iterative nature of risk assessment Risk assessment proceeds by cycles of Reviewers questions ... Review and Decision Making 21 Risk Assessment isk assessment is inherently the most criti- Methodology for Biotechnology cal component of biosafety implementa- Risk Assessment R tion Those who...
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