GENERALIZATIONS OF T-EXTENDING MODULES RELATIVE TO FULLY INVARIANT SUBMODULES

Asgari, Shadi,Haghany, Ahmad Korean Mathematical Society 2012 대한수학회지 Vol.49 No.3

The concepts of t-extending and t-Baer for modules are generalized to those of FI-t-extending and FI-t-Baer respectively. These are also generalizations of FI-extending and nonsingular quasi-Baer properties respectively and they are inherited by direct summands. We shall establish a close connection between the properties of FI-t-extending and FI-t-Baer, and give a characterization of FI-t-extending modules relative to an annihilator condition.

Generalizations of t-extending modules relative to fully invariant submodules

Shadi Asgari,Ahmad Haghany 대한수학회 2012 대한수학회지 Vol.49 No.3

The concepts of t-extending and t-Baer for modules are generalized to those of FI-t-extending and FI-t-Baer respectively. These are also generalizations of FI-extending and nonsingular quasi-Baer properties respectively and they are inherited by direct summands. We shall establish a close connection between the properties of FI-t-extending and FI-t-Baer, and give a characterization of FI-t-extending modules relative to an annihilator condition.

Investigation on the Effects of Three X→Histidine Replacements on Thermostability of α-Amylase from Bacillus amyloliquefaciens

( Haghani Karimeh ),( Khosro Khajeh ),( Hossein Naderi Manesh ),( Bijan Ranjbar ) 한국미생물 · 생명공학회 2012 Journal of microbiology and biotechnology Vol.22 No.5

Bacillus licheniformis α-amylase (BLA), a thermophilic counterpart of Bacillus amyloliquefaciens α-amylase (BAA), is an appropriate model for the design of stabilizing mutations in BAA. BLA has 10 more histidines than BAA. Considering this prominent difference, in the present study, three out of these positions (I34, Q67, and P407; located in the thermostability determinant 1 region and Ca-III binding site of BAA) were replaced with histidine in BAA, using the site-directed mutagenesis technique. The results showed that the thermostability of P407H and Q67H mutants had increased, but no significant changes were observed in their kinetic parameters compared to that of the wild type. I34H replacement resulted in complete loss of enzyme activity. Moreover, fluorescence and circular dichroism data indicated a more rigid structure for the P407H variant compared with that of the wild-type BAA. However, the flexibility of Q67H and I34H mutants increased in comparison with that of wild-type enzyme.

Thermal Requirement and Development of Liriomyza sativae (Diptera: Agromyzidae) on Cucumber

M. Haghani,Y. Fathipour,A. A. Talebi,V. Baniameri,A. A. Zamani 한국응용곤충학회 2005 한국응용곤충학회 학술대회논문집 Vol.2005 No.05

Temperature-dependent functional response of Diglyphus isaea and Hemiptarsenus zilahisebessi parasitizing Liriomyza sativae

Fathipour Yaghoub,Haghani Mostafa,Bagheri Abdoolnabi,Talebi Ali Asghar,Baniameri Valiollah 한국응용곤충학회 2020 Journal of Asia-Pacific Entomology Vol.23 No.2

This study was conducted to address the effect of different constant temperatures (15, 20, 25, 30 and 35 °C) on the functional response of the parasitoid wasps Diglyphus isaea Walker and Hemiptarsenus zilahisebessi Erdös to different densities of Liriomyza sativae Blanchard (2, 4, 8, 16, 32 and 64 larvae) under laboratory conditions. The results revealed the Type II functional response for both parasitoids at different temperatures. The highest searching efficiency for D. isaea and H. zilahisebessi occurred at 25 °C (0.926 ± 0.211 h −1 ) and 30 °C (1.012 ± 0.241 h −1 ), respectively. In addition, the shortest handling time for D. isaea and H. zilahisebessi were observed at 25 °C (0.063 ± 0.008 h) and 30 °C (0.058 ± 0.008 h), respectively. These results demonstrated that H. zilahisebessi is more efficient at higher temperatures than D. isaea. Both parasitoids had higher parasitism performance when temperature increased (4.67 parasitized hosts/day at 15 °C vs 15.87 parasitized hosts/day at 25 °C for D. isaea and 3.89 parasitized hosts/day at 15 °C vs 17.24 parasitized hosts/day at 30 °C for H. zilahisebessi). In addition, a quadratic regression was found between handling time and temperature as well as between number of the parasitized larvae and temperature in D. isaea and H. zilahisebessi at different densities of L. sativae. This study provided a preliminary information on the parasitic behavior of these parasitoids and that D. isaea and H. zilahisebessi can be used properly beside other non-chemical approaches to manage L. sativae damage at a temperature range of 25–30 °C, respectively.

The Effect of an Empowerment Program on the Health-promoting Behaviors of Iranian Women Workers: A Randomized Controlled Trial

Noori, Fatemeh,Behboodimoghadam, Zahra,Haghani, Shima,Pashaeypoor, Shahzad The Korean Society for Preventive Medicine 2021 예방의학회지 Vol.54 No.4

Objectives: The workplace is an ideal place for encouraging health-promoting behaviors. Therefore, the aim of the present study was to determine the effect of an empowerment program on the health-promoting behaviors of women workers. Methods: This randomized clinical trial was conducted with 80 women workers employed at a food packaging facility in 2020. The subjects were selected using convenience sampling and were classified into intervention and control groups using block randomization. An empowerment program for women workers was conducted across 6 sessions based on an empowerment model. Data collection tools included a demographic questionnaire and the Health Promoting Lifestyle Profile-II, which participants completed both before the program and 8 weeks after the last session. Data analysis was performed in SPSS version 16 using descriptive analysis and inferential statistics. Results: There were no significant differences between the 2 groups in various health-promoting behaviors before the program. However, the intervention group's scores for nutrition (34.92±1.09 vs. 27.87±4.23), physical activity (24.40±2.94 vs. 17.40±5.03), stress management (26.35±2.60 vs. 23.05±4.27), spiritual growth (34.02±3.00 vs. 30.22±5.40), interpersonal relationships (30.82±2.38 vs. 27.60±4.61), and health responsibility (31.60±2.71 vs. 28.22±4.59) were significantly higher than the control group's 8 weeks after the program had ended. Moreover, there was a significant difference in the total score of health-promoting behaviors for the intervention group compared to the control group (179.00±9.22 vs. 151.42±20.25, p=0.001). Conclusions: An empowerment program for women workers led to significant improvements in the health-promoting behaviors of the participants. Similar programs can ultimately improve women's health in the workplace.

From Visiting a Physician to Expecting Antibiotics: Korean Perspectives and Practices toward Respiratory Tract Infections

Leila Freidoony,김춘배,Hamid Haghani,박명배,장세진,김상하,고상백 대한의학회 2017 Journal of Korean medical science Vol.32 No.2

Antibiotic resistance is steadily rising worldwide. Respiratory tract infections (RTIs) are common indications, mostly imprudent, for antibiotic prescriptions in outpatient setting. In Korea, antibiotic prescription rate for RTIs is still high. As physician visit and antibiotic prescribing are influenced by patient's perceptions and beliefs, we aimed to explore the general public's perspectives and practices toward RTIs and to develop the ‘RTI clinical iceberg.’ A cross-sectional survey was conducted in Wonju Severance Christian Hospital (WSCH) among 550 adults attending outpatient departments during January 2016. Differences in distributions between groups were examined using two-tailed Pearson χ2 test. Using the Andersen's behavioral model as a conceptual framework, we constructed logistic regression models to assess factors associated with physician visit. Of 547 participants with complete questionnaires, 62.9% reported having experienced an RTI in the previous six months; 59.3% visited a physician for the illness, most commonly because the symptoms were severe or prolonged, and approximately 16% of them expected an antibiotic prescription from the visit. Perceptions of symptoms severity, the need factor, most strongly influenced physician visit. Predisposing and enabling factors such as inappropriate expectations for antibiotic for a sore throat or having national health insurance also influenced physician visit. Almost all participants who reported asking for an antibiotic were prescribed one, with a 37.1% non-adherence rate. Conclusively, public education on self-care for RTI symptoms that addresses their main concerns may reduce physician visits. Improving physician-patient relationship and informing patients about the lack of antibiotic benefit for most RTIs may also reduce antibiotic prescriptions.

Association of TNF-α 308 G/A Polymorphism With Type 2 Diabetes: A Case-Control Study in the Iranian Kurdish Ethnic Group

Hasan Golshani,Karimeh Haghani,Majid Dousti,Salar Bakhtiyari 질병관리본부 2015 Osong Public Health and Research Persptectives Vol.6 No.2

Objectives: Tumor necrosis factor-α (TNF-α) plays roles in the development of obesity, insulin resistance, and possibility of Type 2 diabetes mellitus (T2DM). The objective of the current study was to evaluate the association of TNF-α promoter-308 G/A polymorphism with T2DM. Methods: In all, 1038 patients with T2DM and 1023 normoglycemic controls were included in this study. All participants were genotyped using the polymerase chain reaction-restriction fragment length polymorphism method. Genotypic and allelic frequencies were then analyzed in each group. Serum lipids, fasting glucose, fasting serum insulin, homeostatic model assessment of insulin resistance, and hemoglogin A1c levels were determined by conventional methods. Results: The allelic frequency of the A allele was significantly different between case and control participants (p = 0.006). Genotypes GA and AA were found to be significantly associated with 2.24- and 3.18-fold increased risk for T2DM, respectively. Similarly, the dominant model of -308 G/A polymorphism was found to have a higher risk for T2DM (odds ratio = 2.34, p = 0.001). Individuals with T2DM carrying the GA ┼ AA genotypes of -308 G/A variation had significantly lower fasting plasma insulin than those carrying GG genotype. Conclusion: Our findings revealed that there is an association between the TNF-α promoter -308 G/A polymorphism and T2DM in this population.

Exposure of Infants to Aflatoxin M1 from Mother’s Breast Milk in Ilam, Western Iran

Farajollah Maleki,Soghra Abdi,Elaham Davodian,Karimeh Haghani,Salar Bakhtiyari 질병관리본부 2015 Osong Public Health and Research Persptectives Vol.6 No.5

Objectives: Aflatoxins as a highly toxic group of mycotoxins are present in the environment and foodstuff. These have been reported to cause serious health problems in humans. Since aflatoxin M1 (AFM1) is excreted into breast milk, investigating the exposure of infants to AFM1 is of special concern. Methods: In the present study, breast milk samples were collected from 85 lactating mothers in Ilam province, Iran, and the levels of AFM1 were analyzed using the enzyme-linked immunosorbent assay-based technique. AFM1 was detected in breast milk of all lactating women. The mean contamination level was 5.91 ± 2.031 ng/L, ranging from 2 ng/L to 10 ng/L. Results: Multiple regression analysis indicated no significant associations of consumption of milk and dairy products, meat, fish, legumes, grain products, fruits, and nuts with the concentration of AFM1 in breast milk. Furthermore, no significant association was observed between AFM1 concentration and anthropometric data of infants. Conclusion: In western parts of Iran, lactating mothers and their infants could be at risk of aflatoxin B1 and AFM1 exposure, respectively. Therefore, in Iran, the evaluation of AFM1 in human breast milk as a biomarker for postnatal exposure of infants to this carcinogen requires more attention in different regions and various seasons.

Patient Accounting Systems: Are They Fit with the Users’ Requirements?

Haleh Ayatollahi,Zahra Nazemi,Hamid Haghani 대한의료정보학회 2016 Healthcare Informatics Research Vol.22 No.1

Objectives: A patient accounting system is a subsystem of a hospital information system. This system like other informationsystems should be carefully designed to be able to meet users’ requirements. The main aim of this research was to investigateusers’ requirements and to determine whether current patient accounting systems meet users’ needs or not. Methods: Thiswas a survey study, and the participants were the users of six patient accounting systems used in 24 teaching hospitals. Astratified sampling method was used to select the participants (n = 216). The research instruments were a questionnaire and a checklist. The mean value of ≥3 showed the importance of each data element and the capability of the system. Results: Generally, the findings showed that the current patient accounting systems had some weaknesses and were able to meet between 70% and 80% of users’ requirements. Conclusions: The current patient accounting systems need to be improved to be able to meet users’ requirements. This approach can also help to provide hospitals with more usable and reliable financial information.