Environmental values in the petrochemical industry: A Q-method study in South West Iran

Achieving sustainable development in different regional and cultural contexts is dependent, in part, upon an understanding of key actors’ underlying environmental, social and economic values. The social research technique called Q-methodology presents an effective means to explore such values as a matter of discourse: revealing the typologies of stakeholder perspectives within a given debate. Q-method involves factor analysis of participant rank-ordered preselected statements on a topic. The resultant factors are then reinterpreted as social discourses. In this study we use Q-methodology to explore the environmental values of Health Safety and Environmental (HSE) managers in petrochemical companies in Khuzestan province in southwest Iran. Khuzestan is a key region of petrochemical product development, with significant associated environmental pollution effects. Understanding HSE managers’ attitudes to environmental protection is of value in predicting broader environmental impacts to the region, given the relative importance of their role in regulating the environmental performance of this industry. Our results reveal four distinct and varied perspectives on environmental protection labelled: ‘Environmental stewardship’, ‘Environmental presentism’, ‘Technological optimism’ and ‘Enlightened anthropocentrism’. We then discuss how these four emergent perspectives correspond to broader environmental discourses as categorized by John Dryzek: i.e. green rationalism, economic rationalism, prometheanism and ecological modernization respectively

Readability of Patient Education Materials on the American Association for Surgery of Trauma Website

Background: Because the quality of information on the Internet is of dubious worth, many patients seek out reliable expert sources. As per the American Medical Association (AMA) and the National Institutes of Health (NIH) recommendations, readability of patient education materials should not exceed a sixth-grade reading level. The average reading skill of U.S. adults is at the eighth-grade level. Objectives: This study evaluates whether a recognized source of expert content, the American Association for Surgery of Trauma (AAST) website’s patient education materials, recommended readability guidelines for medical information. Materials and Methods: Using the well-validated Flesch-Kincaid formula to analyze grade level readability, we evaluated the readability of all 16 of the publicly-accessible entries within the patient education section of the AAST website. Results: Mean ± SD grade level readability was 10.9 ± 1.8 for all the articles. All but one of the articles had a readability score above the sixth-grade level. Readability of the articles exceeded the maximum recommended level by an average of 4.9 grade levels (95% confidence interval, 4.0-5.8; P < 0.0001). Readability of the articles exceeded the eighth-grade level by an average of 2.9 grade levels (95% confidence interval, 2.0-3.8; P < 0.0001). Only one of the articles had a readability score below the eighth-grade level. Conclusions: The AAST’s online patient education materials may be of limited utility to many patients, as the readability of the information exceeds the average reading skill level of adults in the U.S. Lack of patient comprehension represents a discrepancy that is not in accordance with the goals of the AAST’s objectives for its patient education efforts. Keywords: Patient Education Materials; Online Health Information; Readability; Comprehension, Flesch-Kincaid Formul

Quantitative Optical Studies of Oxidative Stress in Rodent Models of Eye and Lung Injuries

Optical imaging techniques have emerged as essential tools for reliable assessment of organ structure, biochemistry, and metabolic function. The recognition of metabolic markers for disease diagnosis has rekindled significant interest in the development of optical methods to measure the metabolism of the organ. The objective of my research was to employ optical imaging tools and to implement signal and image processing techniques capable of quantifying cellular metabolism for the diagnosis of diseases in human organs such as eyes and lungs. To accomplish this goal, three different tools, cryoimager, fluorescent microscope, and optical coherence tomography system were utilized to study the physiological metabolic markers and early structural changes due to injury in vitro, ex vivo, and at cryogenic temperatures. Cryogenic studies of eye injuries in animal models were performed using a fluorescence cryoimager to monitor two endogenous mitochondrial fluorophores, NADH (nicotinamide adenine dinucleotide) and FAD (flavin adenine dinucleotide). The mitochondrial redox ratio (NADH/ FAD), which is correlated with oxidative stress level, is an optical biomarker. The spatial distribution of mitochondrial redox ratio in injured eyes with different durations of the disease was delineated. This spatiotemporal information was helpful to investigate the heterogeneity of the ocular oxidative stress in the eyes during diseases and its association with retinopathy. To study the metabolism of the eye tissue, the retinal layer was targeted, which required high resolution imaging of the eye as well as developing a segmentation algorithm to quantitatively monitor and measure the metabolic redox state of the retina. To achieve a high signal to noise ratio in fluorescence image acquisition, the imaging was performed at cryogenic temperatures, which increased the quantum yield of the intrinsic fluorophores. Microscopy studies of cells were accomplished by using an inverted fluorescence microscope. Fixed slides of the retina tissue as well as exogenous fluorophores in live lung cells were imaged using fluorescent and time-lapse microscopy. Image processing techniques were developed to quantify subtle changes in the morphological parameters of the retinal vasculature network for the early detection of the injury. This implemented image cytometry tool was capable of segmenting vascular cells, and calculating vasculature features including: area, caliber, branch points, fractal dimension, and acellular capillaries, and classifying the healthy and injured retinas. Using time-lapse microscopy, the dynamics of cellular ROS (Reactive Oxygen Species) concentration was quantified and modeled in ROS-mediated lung injuries. A new methodology and an experimental protocol were designed to quantify changes of oxidative stress in different stress conditions and to localize the site of ROS in an uncoupled state of pulmonary artery endothelial cells (PAECs). Ex vivo studies of lung were conducted using a spectral-domain optical coherence tomography (SD-OCT) system and 3D scanned images of the lung were acquired. An image segmentation algorithm was developed to study the dynamics of structural changes in the lung alveoli in real time. Quantifying the structural dynamics provided information to diagnose pulmonary diseases and to evaluate the severity of the lung injury. The implemented software was able to quantify and present the changes in alveoli compliance in lung injury models, including edema. In conclusion, optical instrumentation, combined with signal and image processing techniques, provides quantitative physiological and structural information reflecting disease progression due to oxidative stress. This tool provides a unique capability to identify early points of intervention, which play a vital role in the early detection of eye and lung injuries. The future goal of this research is to translate optical imaging to clinical settings, and to transfer the instruments developed for animal models to the bedside for patient diagnosis

Risk assessment of inter-basin water transfer plans through integration of Fault Tree Analysis and Bayesian Network modelling approaches

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Polycaprolactone-templated reduced-graphene oxide liquid crystal nanofibers towards biomedical applications

Here, we report a facile method to generate electrically conductive nanofibers by coating and subsequently chemically reducing graphene oxide (GO) liquid crystals on a polycaprolactone (PCL) mat.</p

Governance of Agricultural Water Management:How Does the EPSI Model Explain Iranian Farmers' Satisfaction? An Experience from Northwestern Iran

Farmers’ satisfaction with agricultural water management can be used as a measure of the fairness of water distribution and the performance of an irrigation scheme. Therefore, the assessment of farmers’ satisfaction in this respect could provide useful insights contributing to the sustainable governance of irrigation water. In this study, the population of interest consisted of residents in district of Lajan using the public irrigation network in Piranshahr Township, Iran. Using Krejcie and Morgan’s table and following a simple random sampling method, 110 individuals were selected as the research sample. Questionnaire [based on the European Performance Satisfaction Index (EPSI)] was the main tool for data gathering. The validity of the questionnaire was verified by a panel of experts. To assess its reliability, Cronbach’s Alpha coefficient was calculated for the main scales of the questionnaire (α= 0.74 to 0.86). According to the obtained data, the main factors influencing farmers’ satisfaction included the perceived image of irrigation governance, expectations of farmers from irrigation governance, and the perceived quality and value of irrigation. According to the results, farmers believed that irrigation management by the government was a solution for reducing local conflicts in relation to agricultural water use and justice in the distribution of irrigation water. However, they were not satisfied with the irrigation scheme governance

Valuing wetland conservation: a contingent valuation analysis among Iranian beneficiaries

Wetland ecosystems conservation is a critical environmental policy and practice challenge. Though policy protection mechanisms ostensibly establish a commitment to long-term protection, the level and types of wetland threats are growing. Management of sustainable wetland resources requires community commitments to protection amongst predominantly rural stakeholders that draw upon wetland ecosystem services for their livelihoods and is vital to forming a policy strategy. This empirical study uses contingent valuation methodology with rural residents around four key wetlands areas in the ecologically fragile Khuzestan province in Iran. We find that 65% of the residents are willing to pay an amount of personal income to protect wetland ecosystems. The estimated Logit model with 84% prediction accuracy showed the variables of education and job relationship with the wetland had a positive effect on the probability of price acceptance, and the variables of living costs and marital status had a negative effect on the probability of price acceptance. In total, the conservation value of wetlands is estimated at 103,351.52 USD. Finally, we assess the policy-relevance of our findings towards community windfall payments, tax disbursements, community resource management schemes, public participation, and social outreach programs to improve social learning buy-in to long-term conservation practices

Using data envelopment analysis to evaluate the efficiency of creative tourism in Portugal

This paper presents an indicator system for evaluating Creative Tourism activities developed in four regions of Portugal through CREATOUR’s pilot projects. It is a quantitative study based on primary and secondary sources. Data Envelopment Analysis (DEA) was used to evaluate the efficiency of those projects as decision-making units (DMUs). Data analysis was performed using Excel and EMS software. The results show that the overall level of tourism efficiency is relatively high, and most pilots in each region have full efficiency. However, there is still room for improvement in some of them. Based on the results of this study, Portuguese creative tourism professionals need to pay more attention to social capital and job creation as the factors that have the greatest impact on improving efficiency. This is the first study to assess the effectiveness of a pilot project in creative tourism. Therefore, the results of this study can pave the way for implementing Creative Tourism projects in other parts of the world

Role of rural women in operation, protection and restoration of natural resources in desert plains; Case study: Khuzestan province

Abstract Non-renewable natural resources play an important role in sustainable development of developing countries such as Iran. However, since the natural resources should be preserved for future generations, proper use of such resources seems mandatory. Women are one of the prime users of natural resources in developing countries. The purpose of this study is to assess the conservational behavior of rural women and factors influencing such behaviors regarding destruction, protection, and restoration of desert areas of Khuzestan province in Iran in a one-year period from Sep 2006 to Sep 2007. Rural women living in desert areas were interviewed in the process of data collection using multi-stage random sampling techniques. The results revealed that rural women played an essential role in the protection, restoration and destruction of natural resources. Moreover, there was no significant relationship between rural women’s personal characteristics and their activities in utilization of natural resources. This implies that destruction of natural resources is not attributed to rural women's intentions. However, human basic needs such as searching for a place to live, unpredictable weather conditions, unawareness of conservational facts, financial difficulties, large-sized families, overgrazing, and using woods as fuel were the main reasons for destruction

Why do farmers over-extract groundwater resources? Assessing (un)sustainable behaviors using an Integrated Agent-Centered framework

This study uses an Integrated Agent-Centered (IAC) framework to investigate the socio-psychological drivers of Iranian farmers’ unsustainable groundwater management practices. Empirical land use change analysis of US Geological Survey Landsat satellite images of the Jaz-Murian wetland region for 1990, 2010, and 2022, is combined with community surveys conducted with randomly selected farmers in five townships within the region (n=356). Visual analysis reveals dramatic increases in agricultural land coverage, diminished water bodies and increased salt lands over the 32-year sampled period. We use survey data to explain the socio-psychological drivers of unsustainable groundwater use that lead to these adverse environmental changes. In the IAC survey analysis, we find that variables for “expectation” and “subjective culture” have a negative influence on pro-environmental “intention”. “Intention” and “habit” have a positive influence, and “contextual factors” have a negative influence on the drivers of “unsustainable water use behavior”. We conclude that situational influences, habitual process, intentional process, and normative processes must be considered together to alleviate pressure on wetland ecosystems. Policy makers must provide effective agricultural extension training, deliberative dialogue amongst farmer networks, well governed local water markets and financial support to shift farmer short-termist economic gain-thinking towards socially-supported pro-environmental habits over the longer term