نتایج جستجو برای: hazard indices

تعداد نتایج: 146790  

Journal: :Regulatory toxicology and pharmacology : RTP 2011
G Scott Dotson Chen-Peng Chen Bernard Gadagbui Andrew Maier Heinz W Ahlers Thomas J Lentz

This article presents an overview of a strategy for assignment of hazard-specific skin notations (SK), developed by the National Institute for Occupational Safety and Health (NIOSH). This health hazard characterization strategy relies on multiple SKs capable of delineating systemic (SYS), direct (DIR), and immune-mediated (SEN) adverse effects caused by dermal exposures to chemicals. One advant...

2016
Matthew Tikpangi Kolo Mayeen Uddin Khandaker Yusoff Mohd Amin Wan Hasiah Binti Abdullah

Following the increasing demand of coal for power generation, activity concentrations of primordial radionuclides were determined in Nigerian coal using the gamma spectrometric technique with the aim of evaluating the radiological implications of coal utilization and exploitation in the country. Mean activity concentrations of 226Ra, 232Th, and 40K were 8.18±0.3, 6.97±0.3, and 27.38±0.8 Bq kg-1...

A. Joubert, N.J. Wagner, U.A.Q. Ahmed,

Background: Radionuclides occur in coal combustion residues, such as fly ash and bottom ash, which are by-products of coal combustion. They pose potential radiological risks to people present in the surrounding areas. Materials and Methods: Gamma spectrometry was performed to determine the radionuclide activity concentrations in a coal-driven power plant located in the Limpopo province, South A...

2016
Derek Vollmer Helen M. Regan Sandy J. Andelman

Quantitative indicators are a common means of assessing the complex dimensions of a sustainable freshwater system, and framing scientific knowledge for policy and decision makers. There is an abundance of indicators in use, but considerable variation in terms of what is being measured and how indicators are applied, making it difficult for end-users to identify suitable assessment methods. We r...

Journal: :Shock and Vibration 2023

Coal mining activities have intensified, and underground depths increased, posing significant challenges for mitigating rock burst hazard. To address this issue, paper proposes an improved comprehensive weighting prediction (CF-TOPSIS) method that predicts weight grade indices evaluation. The study introduces a novel variable coefficient to optimize the conflict response problem employs correla...

Journal: :Clinical oncology (Royal College of Radiologists (Great Britain)) 2013
G Rodrigues S Gonzalez-Maldonado G Bauman S Senan F Lagerwaard

AIMS Prognostic indices are commonly used in the context of brain metastases radiotherapy to guide patient decision-making and clinical trial stratification. The purpose of this investigation was to compare nine published brain metastases prognostic indices using traditional and novel statistical comparison metrics. MATERIALS AND METHODS A retrospective review was carried out on two instituti...

Journal: Desert 2018
M. Fatemi, M. Narangifard

Droughts are one of the most damaging climatic phenomena, and the most complex natural hazard  which affects the economy, agriculture, public health and environment in large areas. The aim of this study is to compare drought indicators derived from tropical rainfall measuring mission (TRMM) data in the south of Iran. Also the TRMM rainfall was considered, so as to investigate changes in the rai...

Journal: :international journal of environmental research 2011
s. dragicevic d. filipovic s. kostadinov r. ristic i. novkovic

the territory of serbia is vulnerable to various types of natural hazards and the risk is not equal across the entire territory; it varies depending on the type of hazard and the expected potential for damage. the first aim of this research was to determine the geographical distributions of the major types of natural hazards. seismic hazards, landslides, rock falls, floods, torrential floods...

2012
Camille Buscail Erika Upegui Jean-François Viel

BACKGROUND Climate change poses unprecedented challenges, ranging from global and local policy challenges to personal and social action. Heat-related deaths are largely preventable, but interventions for the most vulnerable populations need improvement. Therefore, the prior identification of high risk areas at the community level is required to better inform planning and prevention. We aimed to...

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