Search results

Displacement measurement in large-scale structures (such as excavation walls) is one of the most important applications of close-range photogrammetry, in which achieving high precision requires extracting and accurately matching local features from convergent images. The purpose of this study is to introduce a new multi-image pointing (MIP) algorithm is introduced based on the characteristics of the geometric model generated from the initial matching. This self-adaptive algorithm is used to correct and improve the accuracy of the extracted positions from local features in the convergent images.

In this paper, the new MIP algorithm based on the geometric characteristics of the model generated from the initial matching was introduced, which in a self-adaptive way corrected the extracted image coordinates. The unique characteristics of this proposed algorithm were that the position correction was accomplished with the help of continuous interaction between the 3D model coordinates and the image coordinates and that it had the least dependency on the geometric and radiometric nature of the images. After the initial feature extraction and implementation of the MIP algorithm, the image coordinates were ready for use in the displacement measurement process. The combined photogrammetry displacement adjustment (CPDA) algorithm was used for displacement measurement between two epochs. Micro-geodesy, target-based photogrammetry and the proposed MIP methods were used in a displacement measurement project for an excavation wall in the Velenjak area in Tehran, Iran, to evaluate the proposed algorithm performance. According to the results, the measurement accuracy of the point geo-coordinates of 8 mm and the displacement accuracy of 13 mm could be achieved using the MIP algorithm. In addition to the micro-geodesy method, the accuracy of the results was matched by the cracks created behind the project’s wall. Given the maximum allowable displacement limit of 4 cm in this project, the use of the MIP algorithm produced the required accuracy to determine the critical displacement in the project.

Evaluation of the results demonstrated that the accuracy of 8 mm in determining the position of the points on the feature and the accuracy of 13 mm in the displacement measurement of the excavation walls could be achieved using precise positioning of local features on images using the MIP algorithm.The proposed algorithm can be used in all applications that need to achieve high accuracy in determining the 3D coordinates of local features in close-range photogrammetry.

Some advantages of the proposed MIP photogrammetry algorithm, including the ease of obtaining observations and using local features on the structure in the images rather than installing the artificial targets, make it possible to effectively replace micro-geodesy and instrumentation methods. In addition, the proposed MIP method is superior to the target-based photogrammetric method because it does not need artificial target installation and protection. Moreover, in each photogrammetric application that needs to determine the exact point coordinates on the feature, the proposed algorithm can be very effective in providing the possibility to achieve the required accuracy according to the desired objectives.

The uniqueness of the pre-hospital setting and the need for quick decision-making confronts pre-hospital emergency personnel with various moral conflicts that can lead to moral distress (MD) in them. This study aimed to design a valid scale for the assessment of MD in emergency medical service (EMS) staff.

This exploratory mixed-method study was conducted among the EMS provider's community. In the qualitative section, data were gathered and analyzed with semi-structured interviews and conventional content analysis, respectively. The initial pool of items was formed and the primary scale was designed. In the quantitative section, a methodological study was carried out to determine the psychometric properties of the scale including qualitative-quantitative face validity, qualitative-quantitative content validity with content validity ratio and index (CVR/CVI), construct validity by exploratory factor analysis (EFA), and convergent validity, internal consistency (Cronbach's alpha/ Omega McDonald's/ floor and ceiling effect) and stability with intra-class correlation (ICC).

After interviews with 14 emergency technicians, the initial scale was designed with 60 items. Of the total items, 17 poor items were dropped during face and qualitative content validity. In the content validity phase, the items with CVR > 0.62, modified Kappa > 0.74 were retained, which eliminated 23 items. EFA was conducted with 20 items and lead to the 5 factors. The floor and ceiling effect for the whole scale was zero. Finally, the reliability of the scale was confirmed (a = 0.83, O = 0.86, ICC = 0.95).

The developed 20-item scale is a valid and reliable scale for the assessment of the MD in EMS providers.

Online feminist activism has opened a different path for ordinary Iranians who are not necessarily versed in post-revolutionary discourses on feminism and political activism, nor are familiar with the names and past achievements of Iranian women’s activist pioneers since the birth of the Islamic Republic in 1979. Social media has helped to tease apart government statecraft that continually touts and reemphasizes Islamic values, at the same time providing a platform for a feminist consciousness that more recently has passionately supported individual rights, especially the right to privacy. This chapter delves into this move toward a more individualized form of dissent, surveying the generational, ideological, and technological divides that have emerged among Iranian women’s activists following popular uprisings that have been happening domestically since 2009.

The purpose of this study was to develop and psychometrically evaluate a tool to measure nurses’ knowledge of, attitude toward and practice regarding the elder abuse phenomenon.

This study is methodological research that was conducted in two stages. In the first stage, the available tools related to knowledge, attitude and practice regarding elder abuse were identified through an extensive review of theoretical principles, previous research and related articles. The initial items were extracted and categorized. In the second stage, the psychometric properties of the tool were examined by assessing face validity, content validity, construct validity, internal consistency and stability. Four hundred nurses working in the hospitals of Shahid Beheshti University of Medical Sciences were selected to determine the validity of the structure.

The initial tool consisted of 114 items extracted, 34 of which were removed according to the experts’ opinions. The face validity of the 80-item questionnaire was then examined. The number of the items was reduced to 74 after measuring the face validity. After the qualitative measurement of the content validity, three items were eliminated. After measuring the content validity using a quantitative approach, 8 other items were removed and 63 items remained. According to the content validity index, 1 more item was removed, reducing the number to 62. The construct validity approved three dimensions of knowledge, attitude and practice. Cronbach's alpha coefficient was calculated to be 0.84. The stability was also confirmed through test–retest with a value of 0.85 for the whole scale.

The tool developed for assessing nurses’ knowledge, attitude and practice regarding elder abuse has acceptable dependability and credibility. Given the advantages of this tool, including the simplicity and fluency of sentences, and the comprehensive evaluation of nurses’ knowledge, attitude and practice regarding elder abuse, it is recommended to use this tool in relevant future studies.

This paper reports on a quasi-experimental research performed in the field of reading comprehension and translation quality. The purpose of this paper is to investigate the comparative effect of explicit vs implicit reading comprehension skills on translation quality of Iranian translation students at BA level.

The design of this research was quasi-experimental in nature. This design was preferred in this study, as it was impossible to assign random sampling to the subjects and apply a true experimental design. The research in hand was also a comparative group design research in a sense that it was supposed to compare two reading comprehension methods (explicit vs implicit) with different treatments.

In light of this research, some conclusions can be drawn. It can be concluded that there is a positive and direct relationship between reading comprehension and translation, as the first step of translation is to understand the content of the source text (Reid, 1993).

The reading comprehension ability of translation students should be enhanced in their undergraduate classes so that they can better understand the source text and produce a more fluent translation. In order to teach reading comprehension skills, both implicit and explicit techniques can be applied; however, it is better if the subjects receive explicit instruction, as this technique may have more positive results.

Various researchers have explored explicit and implicit instructions on such areas as reading, speaking and listening (see, e.g. Jalilifar and Alipour, 2007; Vahid Dastjerdi and Shirzad, 2010; Negahi and Nouri, 2014; Khanbeiki and Abdolmanafi-Rokni, 2015; Khoii et al., 2015; Mostafavi and Vahdany 2016; Rahimi and Riasati, 2017). Although the results of these studies have shown the positive impacts of both explicit and implicit teaching, explicit has more positive impacts. However, the review of the literature shows that explicit and implicit reading comprehension skills have not been investigated in relation to teaching translation and their possible impacts on translation quality.

This study aims to examine the role of the board of directors in affecting earnings management practices across small- and medium-sized enterprises (SMEs) life cycle.

Data is collected from 280 SMEs listed on the London Stock Exchange during the period of 2009–2016. Fixed effects regression analysis is used to test the hypotheses.

This study shows that the impact of the board of directors' roles on earnings management practices varies depending on the SMEs life cycle stage. In the introduction, growth and decline stages of SMEs, the wealth creation role of the board is negatively significant with earnings management, while the wealth protection role of the board is positively significant in the growth and maturity phases. Results suggest that the board's responsibility to create wealth deters early-stage earnings management strategies, while protecting shareholder interests, in latter stages, leads to a decrease in earnings management.

The findings suggest that corporate governance should be customized to the specific stage of the SMEs life cycle. Additionally, different life cycle stages may impose different requirements on corporate boards to shape the effectiveness of these mechanisms and constrain earnings management practices.

To the best of the authors’ knowledge, this study offers one of the first insights on the UK SMEs to understand how board functions and earnings management practices vary over SMEs life cycles. It will offer important information on the effect of board features on earnings management in SMEs in the UK and is anticipated to be of importance to policymakers, regulators, investors and practitioners.

Petroleum hydrocarbons are naturally occurring flammable fossil fuels used as conventional energy sources. It has carcinogenic, mutagenic properties and is considered a hazardous pollutant. Soil contaminated with petroleum hydrocarbons adversely affects the properties of soil. This paper aim to remove pollutants from the environment is an urgent need of the hour to maintain the proper functioning of soil ecosystems.

The ability of micro-organisms to degrade petroleum hydrocarbons makes it possible to use these microorganisms to clean the environment from petroleum pollution. For preparing this review, research papers and review articles related to petroleum hydrocarbons degradation by micro-organisms were collected from journals and various search engines.

Various physical and chemical methods are used for remediation of petroleum hydrocarbons contaminants. However, these methods have several disadvantages. This paper will discuss a novel understanding of petroleum hydrocarbons degradation and how micro-organisms help in petroleum-contaminated soil restoration. Bioremediation is recognized as the most environment-friendly technique for remediation. The research studies demonstrated that bacterial consortium have high biodegradation rate of petroleum hydrocarbons ranging from 83% to 89%.

Proper management of petroleum hydrocarbons pollutants from the environment is necessary because of their toxicity effects on human and environmental health.

This paper discussed novel mechanisms adopted by bacteria for biodegradation of petroleum hydrocarbons, aerobic and anaerobic biodegradation pathways, genes and enzymes involved in petroleum hydrocarbons biodegradation.

Given the growing importance of religious tourism, the purpose of this paper is to present a review of the literature around the area.

All papers with the term “religious tourism” have been searched via Emerald Insight from January 2006 to December 2017. The search was run in June 2017 for the last time and all early cite papers falling under the criteria were also included. This has ensured that key literature produced after the seminal work by Timothy and Olsen (Eds) (2006) has been reviewed. Certain exclusions apply which have been listed in the paper.

Key themes from the literature on religious tourism along with new developments and overlaps with other tourism sectors have been highlighted.

This paper reviews literature spanning more than a decade on religious tourism.

Religious tourism is a form of tourism where people of a particular faith travel to visit places of religious significance in their faith. Previous research into the various aspects of religious and spiritual tourism (RST) has been noticeably extended. The purpose of this study is to perform systematic mapping to provide trends and classification regarding the recent publications in the area of RST.

This study collected 181 papers from five scientific databases, from which 122 were selected to be classified according to six properties: research type, research focus, research method, investigated religion, publication type and time.

The analysis of these data resulted in a map of the research field, which was presented under three perspectives: the distribution and trends over time of each classification property and the relationship between them. Besides the visual map, the full list of classified papers is available. The results showed that the number of publications is increasing every year, which shows a growing interest in this field. Moreover, the primary research focuses were destination, demand and marketing. Top three journals were found to be International Journal of Tourism Research, Tourism Recreation Research and Journal of Heritage Tourism. Furthermore, evaluation research, solution proposals and opinion papers were the main research types in the area. In addition, the majority of studies focused on Christianity and Islam. Finally, survey, discussion paper, interview and case study were the predominantly used research methods.

The mapping study delivers the first systematic summary of RST research.

The purpose of this paper is to list the resources that Iranian health-care professionals used to access drug-related information, to know the features and types of drug information resources which were much more important for health-care professionals, the problems they encountered in seeking drug information and the way they organized and re-found the information that they had retrieved. Drug-related queries are one of the most common types of questions in medical settings.

This was a descriptive-analytical study conducted in Iran during 2014. The data collection tool was a self-designed questionnaire. Data analysis was conducted using Statistical Package for Social Sciences. Descriptive statistics and chi-square test were used to analyse the data and examine the research hypothesis.

Participants used books, drug manuals, search engines and medical databases more frequently, and less than half of them consulted colleagues to acquire drug-related information for clinical, educational and research purposes. Handheld computers were used by most participants to access and store drug information. Lack of access to drug information and lack of enough time were the main obstacles in seeking drug information. A significant association (p value = 0.024) was detected between organizing and re-finding information for future uses.

This study investigated drug information-seeking behaviours of health-care professionals and the way they managed this information in a developing country that lacks necessary information technology infrastructures. Training programmes are required to help health-care professionals to find and access reliable and up-to-date drug information resources and to more easily re-find the found drug information for future uses.