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Article
Publication date: 5 June 2017

Aboozar Golgoon, Mahmood Aliofkhazraei, Mansoor Toorani, Mohammad Hossein Moradi, Alireza Sabour Rouhaghdam and Masoud Asgari

The low resistance against penetration of water, oxygen and the other corrosive ions through the paths of coating is one the most important problems. So, protective properties of…

Abstract

Purpose

The low resistance against penetration of water, oxygen and the other corrosive ions through the paths of coating is one the most important problems. So, protective properties of coating such as polyester must be promoted. Recently, the use of nanoparticles in the matrix of polymer coating to increase their protection and mechanical properties has been prospering greatly. The purpose of this study is to improve the corrosion resistance of the polyester powder coating with ZnO nanoparticles. The ZnO nanoparticles have been synthesized by hydrothermal method in a microwave. Using polyester – ZnO nanocomposite coating as powder – combining them by ball milling process and coating them by electrostatic process are innovative ideas and have not been used before it.

Design/methodology/approach

Polyester powder as the matrix and ZnO nanoparticles as reinforcing were combined in three different weight percentage (0.5, 1, 2 Wt.%), and they formed polymer nanocomposite by ball milling process. Then, the fabricated nanocomposite powder was applied to the surface of carbon steel using an electrostatic device, and then the coatings were cured in the furnace. The morphology of synthesized zinc oxide nanoparticles was investigated by transmission electron microscope. Also, the morphology of polyester powder and fabricated coatings was studied by scanning electron microscope. The effects of zinc oxide nanoparticles on the corrosion resistance of coated samples were studied by electrochemical impedance spectroscopy (EIS) test at various times (1-90 days) of immersion in 3.5 per cent NaCl electrolyte.

Findings

Scanning electron microscopy (SEM) results reveal that there are no obvious crack and defects in the nanocomposite coatings. In contrast, the pure polyester coatings having many cracks and pores in their structure. According to the EIS results, the corrosion resistance of nanocomposite coating compared to pure coating is higher. The value obtained from EIS test show that corrosion resistance for coating that contains 1 Wt.% nanoparticle was 32,150,000 (Ωcm2), which was six times bigger than that of pure coating. In addition to providing a barrier against diffusion of electrolyte, ZnO nanoparticles act as a corrosion inhibitor and, thus, increases the corrosion resistance. The corrosion resistance of coating containing 0.5 Wt.% nanoparticles was lower as compared to that of 1 Wt.% nanoparticles. The low content of nanoparticles caused partial covering of the porosity of coating which in turn leads to provide weaker barrier properties. The increase in quantity of nanoparticles from 1 to 2 Wt.% also caused a decrease in corrosion resistance which is attributed to the agglomeration of nanoparticles.

Originality/value

The results of this study indicated the significant effect of ZnO nanoparticles on the protective performance and corrosion resistance of the polyester powder coating. Evaluation of coating surface and interface with SEM technique revealed that nanocomposite coating compared with pure polyester coating provided a coating with lower number of pores and with higher quality. The EIS measurements represented that polymeric coating that contains nanoparticles compared to pure coating provides a better corrosion resistance. In addition to providing a barrier against diffusion of electrolyte, ZnO nanoparticles act as a corrosion inhibitor and thus increase the corrosion resistance. The corrosion resistance of coating containing 0.5 Wt.% nanoparticles was lower as compared to that containing 1Wt.% nanoparticles. The low content of nanoparticles caused partial covering of the porosity of coating which in turn leads to provide weaker barrier properties. The increase in quantity of nanoparticles from 1 to 2 Wt.% also caused a decrease in corrosion resistance which is attributed to the agglomeration of nanoparticles.

Details

Anti-Corrosion Methods and Materials, vol. 64 no. 4
Type: Research Article
ISSN: 0003-5599

Keywords

Article
Publication date: 16 July 2021

Navid Nezafati, Shokouh Razaghi, Hossein Moradi, Sajjad Shokouhyar and Sepideh Jafari

This paper aims to identify the impact of demographical and organizational variables such as age, gender, experiences use of knowledge management system (KMS), education and job…

Abstract

Purpose

This paper aims to identify the impact of demographical and organizational variables such as age, gender, experiences use of knowledge management system (KMS), education and job level on knowledge sharing (KS) performance of knowledge workers in knowledge activities of a KMS. Specifically, it seeks to explore that is there any relationship between the KS behavior patterns of high KS performance knowledge workers with their performance. Furthermore, this study using its conceptual attitude model aims to show that whether knowledge workers’ behavior patterns in sharing information and knowledge throughout a KMS have any specific effect or not.

Design/methodology/approach

This paper proposed a framework to mine knowledge workers’ raw data using data mining techniques such as clustering and association rules mining. Also, this research uses a case-based approach to a knowledge-intensive company in Iran that works in the field of information technology with 730 numbers of workers.

Findings

Findings suggest that demographical and organizational variables such as age, education and experience use of KMS have positive effects on knowledge worker’s KS behavior in KMSs. In fact, people who have lower age, higher education degrees and more experience use of KMS, have more participation in KS in KMS. Also, results depict that the experienced use of KMS has the most impact on the intention of KS in this KMS. Findings emphasize on the importance of the influence of the behavioral, organizational environments and psychological factors such as reward system, top management support, openness and trust, on KS performance of knowledge workers in the KMS. In fact, according to data, the KMS reward system caused to increasing participation of the users in KS, also in each knowledge activity that top managers participate in, the scores were higher.

Practical implications

This research helps top managers in designing policies and strategies to improve the participation of knowledge workers in KS and helps human resource managers to improve their membership policies. Also, assist Information Technology (IT) managers to enhance KMSs’ design to leverage with organization strategies in the field of improving KS and encourage people to participate in KMS.

Originality/value

This research has two key values. First, this paper applies a data mining framework to mining and analyzing data and this paper uses actual data of a KMS in a specialist company in Iran, with about 27,740 real data points. Second, this paper investigates the impact of demographical and organizational attributes on KS behavior, which little is empirically known about the impact of demographical variables on KS intention.

Details

VINE Journal of Information and Knowledge Management Systems, vol. 53 no. 4
Type: Research Article
ISSN: 2059-5891

Keywords

Article
Publication date: 13 April 2012

Mohammad Reza Davarpanah and Hossein Moradi Moghadam

The purpose of this paper is to provide an overall picture of women's participation in Iranian scientific production.

366

Abstract

Purpose

The purpose of this paper is to provide an overall picture of women's participation in Iranian scientific production.

Design/methodology/approach

A sample of 7,846 articles was obtained from the three ISI databases: Science Citation Index (SCI), Social Science Citation Index (SSCI), and Arts and Humanities Citation Index (AHCI) for the study period 2005‐2010. The articles were broken down by gender. Then for the scope of this study, research productivity, collaboration pattern, scientific‐disciplinary, and research impact were investigated.

Findings

A chi‐square test showed that there is a significant difference between the male and female research output in the three databases. Females accounted for 13 percent of the articles indexed in ISI databases during the study period. There is a gap of approximately 87 percent in research productivity between males and females in Iran. Iranian women are more active in the areas of chemistry, clinical medicine and general social sciences.

Originality/value

The paper highlights the role of women in science and the gap of research productivity between men and women; it may help illuminate policy decisions to promote female research in the country.

Details

Library Review, vol. 61 no. 4
Type: Research Article
ISSN: 0024-2535

Keywords

Article
Publication date: 19 July 2019

Bakhtiar Piroozi, Bushra Zarei, Bayazid Ghaderi, Hossein Safari, Ghobad Moradi, Satar Rezaei, Mahfooz Ghaderi, Shina Amirhosseini and Amjad Mohamadi-Bolbanabad

The right to health for all people means that everyone should have access to the needed healthcare services without suffering from severe financial hardship. The purpose of this…

Abstract

Purpose

The right to health for all people means that everyone should have access to the needed healthcare services without suffering from severe financial hardship. The purpose of this paper is to investigate the prevalence as well as the effective factors on facing catastrophic health expenditures (CHE) among gastrointestinal cancer patients and families in Kurdistan province in west of Iran after the implementation of Health Transformation Plan (HTP).

Design/methodology/approach

A cross-sectional study was carried out on 189 households with gastrointestinal cancer patients in Kurdistan province in 2018. Data were collected using World Health Survey questionnaire. A method developed by World Health Organization with the threshold of 40 percent household’s capacity to pay was used in order to measure the proportion of households facing CHE. Also, logistic regression was applied for identifying the effective factors on household’s exposure to CHE. Data were analyzed using STATA version 13.

Findings

Almost 73 percent (72.7 percent) of the households (n=117) faced the CHE. Not having supplementary health insurance (adjusted odds ratio (AOR): 3.8; 95% confidence interval: 1.3–10.8 (and having low socio-economic status (AOR: 7.1; 95% CI: 1.8–28.1) were the significant factors affecting the households’ exposure to CHE. In total, 57 and 1 percent of the studied households reported that having a gastrointestinal cancer patient at home had a significant effect on refraining from using health services by other family members.

Originality/value

The proportion of the studied households facing CHE was very high. This may indicate the weakness of health system as well as health insurance or the weakness of HTP in financial protection of fragile population.

Details

International Journal of Human Rights in Healthcare, vol. 12 no. 4
Type: Research Article
ISSN: 2056-4902

Keywords

Article
Publication date: 3 May 2019

Bakhtiar Piroozi, Amjad Mohamadi-Bolbanabad, Hossein Safari, Mohammad Amerzadeh, Ghobad Moradi, Dalir Usefi, Arian Azadnia and Serajaddin Gray

The purpose of this paper is to investigate the prevalence of medication errors (MEs) and the factors affecting them among nurses of hospitals affiliated to Kurdistan University…

Abstract

Purpose

The purpose of this paper is to investigate the prevalence of medication errors (MEs) and the factors affecting them among nurses of hospitals affiliated to Kurdistan University of Medical Sciences (KUMS) in 2016.

Design/methodology/approach

This is a cross-sectional and descriptive-analytic study. In total, 503 nurses were selected using census method from six hospitals affiliated to KUMS. A self-constructed questionnaire was employed to collect information on nurses’ socio-demographic characteristics (6 items), the prevalence and type of MEs (21 items) and their perceptions about the main causes of MEs (40 items). Data were collected from August 15 to October 15, 2016. In addition, nonparametric and linear regression tests were used to describe the descriptive statistics and analyze the data.

Findings

The response rate was 73 percent and the monthly reported MEs per nurse was 6.27±11.95. Giving medication at non-scheduled time (28.4 percent), giving multiple oral medications together (22.4 percent) and giving painkillers after operation without physician’s prescription (15.3 percent) were three types of repetitive MEs, respectively. Gender, work experience, and having a second job affected the total number of MEs. “Long and unconventional nursing shifts,” “changing the dosage of medications for patients under observation due to multiple consultations and different doctors’ orders” as well as “failure to give feedback about the causes of errors to nurses by supervisors” were the three prioritized factors for MEs.

Originality/value

There is a need to reduce MEs in order to improve patient safety. It seems that in order to reduce MEs, systemic and managerial reforms such as reducing the working hours and workload of nurses, giving feedback about the causes of MEs to nurses, and using initiatives to reduce the stress in nurses are necessary.

Details

International Journal of Human Rights in Healthcare, vol. 12 no. 4
Type: Research Article
ISSN: 2056-4902

Keywords

Article
Publication date: 15 June 2021

Bakhtiar Piroozi, Farman Zahir Abdullah, Amjad Mohamadi-Bolbanabad, Hossein Safari, Mohammad Amerzadeh, Satar Rezaei, Ghobad Moradi, Masoumeh Ansari, Abdorrahim Afkhamzadeh and Jamshid Gholami

The purpose of this study is to investigate the status of perceived need, seeking behavior and utilization of health services in the elderly population of Sanandaj (west of Iran).

Abstract

Purpose

The purpose of this study is to investigate the status of perceived need, seeking behavior and utilization of health services in the elderly population of Sanandaj (west of Iran).

Design/methodology/approach

This is a cross-sectional study conducted on 800 elderly people in Sanandaj. Subjects were selected using multistage sampling and data were collected using self-report questionnaires. A multivariate logistic model with odds ratios (ORs) was used to determine the relationship of independent variables with seeking perceived need. Also, the concentration index was used to measure the inequality in using health services.

Findings

The perceived need for outpatient (during the last 30 days) and inpatient health-care services (during the past 12 months) was 69.7% and 29.7%, respectively. Among them, the unmet need for outpatient and inpatient health-care services was 46.6% and 17%, respectively. Having health insurance (adjusted OR 12.08; 95% confidence interval [CI] 1.04–140.11), middle economic status (adjusted OR 5.18; 95% CI 1.30–20.51) and being in an age group of 65–70 years (adjusted OR 7.60; CI 1.42–40.61) increased the chance of seeking inpatient care. Also, being in an age group of 60–65 years (adjusted OR 0.41; 95% CI 0.18–0.95) reduced the chance of seeking outpatient care. There was also a pro-rich inequality in using outpatient health services.

Originality/value

The elderly population suffers from unmet health-care needs, especially in outpatient services. The most important reason for not seeking outpatient and inpatient services was financial barriers and self-medication, respectively. So, designing targeted policies and interventions to address barriers in the conversion of need to demand in the elderly population is essential.

Details

International Journal of Human Rights in Healthcare, vol. 14 no. 5
Type: Research Article
ISSN: 2056-4902

Keywords

Article
Publication date: 13 May 2019

Amjad Mohamadi-Bolbanabad, Ghobad Moradi, Bakhtiar Piroozi, Hossein Safari, Heshmatollah Asadi, Karim Nasseri, Hiwa Mohammadi and Abdorrahim Afkhamzadeh

The purpose of this paper is to determine the second victims’ experience and its related factors among medical staff.

Abstract

Purpose

The purpose of this paper is to determine the second victims’ experience and its related factors among medical staff.

Design/methodology/approach

This research is a cross-sectional study that was conducted in public hospitals of Sanandaj, west of Iran, in 2017. The sample consisted of 338 medical staff including physicians, nurses and mid-wives. A self-report questionnaire was used for data collection. Descriptive statistics, cross-tabs and χ2 test were used for data analysis using SPSS20.

Findings

A total of 51.5 percent (n=174) of the medical staff had experienced medical error in the past year, of which 90.2 percent (n=157) had at least one of the symptoms of “second victims.” Tachycardia and sleep disturbances were the most commonly referred physical symptoms with 73 and 51.7 percent, respectively. Also, repetitive/intrusive memories and fear of reputation damage were the most commonly referred psychosocial symptoms with 68.3 and 51.7 percent, respectively. The experience of physical and psychosocial symptoms was different according to the occupational category. In addition, there was a significant association between the experience of physical symptoms with the hospital administrators’ awareness of medical errors and the consequences of medical errors for patients.

Practical implications

Adoption of coping strategies, including learning from medical errors as well as hospital administrators’ support from second victims, is recommended. It is also suggested that medical staff be informed about the consequences of medical errors as well as physical and psychological symptoms of second victims so that they can ask for help from managers and colleagues when the symptoms occur.

Originality/value

This study outlines the prevalence, the most psychological and physical symptoms, and the demographic and occupational factors associated with the second victim phenomenon in medical staff. Also, the most important strategies for coping with this phenomenon are prioritized from the perspective of medical staff.

Details

International Journal of Workplace Health Management, vol. 12 no. 3
Type: Research Article
ISSN: 1753-8351

Keywords

Article
Publication date: 6 April 2022

Arian Azadnia, Amjad Mohamadi Bolbanabad, Hossein Safari, Abdorrahim Afkhamzadeh, Bakhtiar Piroozi, Darya Ghamari, Shiva Khosravi, Zhina Banafshi and Ramazan Ebrahimi

Health is one of the most basic human rights. This study aims to examine the pattern of unmet health services needs and barriers to use health services among people with…

Abstract

Purpose

Health is one of the most basic human rights. This study aims to examine the pattern of unmet health services needs and barriers to use health services among people with disabilities.

Design/methodology/approach

This cross-sectional study was conducted among people with disabilities in Sanandaj, the capital of a less economically developed province in western Iran in 2020. In total, 548 samples were selected using random sampling, and data were collected using a questionnaire. Chi-square test and Fisher's exact test were used to examine the relationship between independent variables including demographic variables and dependent variables. Statistical tests were performed using STATA software package.

Findings

About 64% and 23% of participants needed outpatient and inpatient services, respectively. The gap between the perceived need and using health services for outpatient and inpatient services was reported to be 55% and 30%, respectively. The main reasons for not seeking the required health care were “insufficient coverage of costs by insurance” and “lack of physical access.” Having supplementary insurance and better economic status were significantly correlated with using outpatient care and having supplementary insurance and type of disability had a significant relationship with using inpatient care.

Originality/value

There was a big gap between the perceived need, seeking for and receiving health services in people with disabilities. Designing and implementing appropriate interventions to reduce barriers on the way of transforming, the need for health services into demand in the population of people with disabilities should be on the agenda of policymakers and relevant managers in the country.

Details

International Journal of Human Rights in Healthcare, vol. 16 no. 4
Type: Research Article
ISSN: 2056-4902

Keywords

Article
Publication date: 16 December 2019

Mahdi Moradi, Hossein Tarighi, Reza Hosseinipour and Mahdi Saravani

The purpose of this paper is to investigate factors affecting the students’ learning of the concepts of the accounting information systems (AIS) in Iran.

Abstract

Purpose

The purpose of this paper is to investigate factors affecting the students’ learning of the concepts of the accounting information systems (AIS) in Iran.

Design/methodology/approach

The statistical population of the study is the accounting and auditing students (Master’s degree) who have the lesson of AIS at state and private universities, as well as the institutes of higher education in 2017. The Likert scale has been used to design questionnaires. Further, the data were analyzed using structural equation modeling with the partial least squares technique.

Findings

Overall, after analyzing and comparing the results of the hypotheses, it was found that, respectively, “assistance to students,” “the power of critical thinking,” “academic professors skills,” “kind of transition to university,” “AIS course structure,” “proper timing of AIS presentation,“ “presentation of a prerequisite course” and finally, “appreciation of AIS” have the greatest impact on the level of student learning in AIS lesson. The results of this paper showed that “teaching style” and “having the previous background of the information system concepts” do not have a statistically significant effect on students’ general learning.

Originality/value

Without any overstatement, this paper will warn educational authorities in emerging countries that lack of attention to factors affecting university students’ learning can have serious consequences for the market of a country. Other than that, this paper will make university professors aware of the effects of effective methods for better student learning in the field of information technology, so that they can make a better assessment of the importance of AIS course.

Details

Journal of Economic and Administrative Sciences, vol. 36 no. 3
Type: Research Article
ISSN: 1026-4116

Keywords

Article
Publication date: 19 August 2020

Mahdi Moradi, Mahdi Salehi, Hossein Tarighi and Mahdi Saravani

Independent auditors play an important role in increasing the reliability of financial information by giving their professional opinion on the financial statements of business…

Abstract

Purpose

Independent auditors play an important role in increasing the reliability of financial information by giving their professional opinion on the financial statements of business units. Therefore, the purpose of this study is to investigate the relationship between the audit adjustments and financing of companies.

Design/methodology/approach

The sample of the study includes 173 Iranian companies listed on the Tehran Stock Exchange (TSE) between 2010 and 2017.

Findings

There is no significant association between the profit incremental audit adjustments (Disagreement) and financing of companies in the current year and the following year through a loan. Furthermore, there is no meaningful relationship between the earnings downward/upward audit adjustments (Disagreement) and the financing of companies in the current year and the following year through ordinary stocks. However, there is a meaningful relationship between the profit downward audit adjustments (Disagreement) and the financing of firms in the current year through a loan. In general, as Iran's economy is facing severe economic sanctions, the existence of a high inflation rate has led to a steady increase in the stock prices of Iranian companies; hence, investors regardless of audit reports prefer to invest their money in the stock market so that it does not lose its purchasing power. Under these disaster economic circumstances, creditors are less willing to lend to companies with lower profits.

Originality/value

The results of the current study extend the knowledge of previous studies as financial pressures from economic sanctions have both positive and negative psychological effects on corporate financing.

Details

Journal of Accounting in Emerging Economies, vol. 10 no. 4
Type: Research Article
ISSN: 2042-1168

Keywords

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