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Effect of Premenstrual Syndrome on Work-Related Quality of Life in Turkish Nurses
Kahyaoglu Sut, Hatice,Mestogullari, Elcin Occupational Safety and Health Research Institute 2016 Safety and health at work Vol.7 No.1
Background: Little is known about the effects of premenstrual syndrome (PMS) on work-related quality of life in nurses. We aimed to investigate the effect of PMS on work-related quality of life in Turkish nurses. Methods: A total of 134 volunteer nurses were included in this cross-sectional study between January 2015 and March 2015. One hundred and thirty-four nurses completed a questionnaire regarding demographic data, the Premenstrual Syndrome Scale (PMSS), and the Work-Related Quality of Life Scale (WRQoL). The nurses were classified as having or not having premenstrual syndrome according to the PMSS. Results: The average age was $29.5{\pm}7.1years$ and the prevalence of PMS was 38.1%. The total score of PMSS was significantly negatively correlated with the overall score (r = -0.341; p < 0.001) and all subscale scores of the WRQoL and ranged from -0.207 to -0.402 (p < 0.05 for all). All of the WRQoL subscale scores except stress at work (p = 0.179) in nurses with PMS were significantly lower than those of nurses without PMS (p < 0.05). The age (${\beta}=-0.258$; p = 0.021) and PMSS total score (${\beta}=-0.314$; p < 0.001) increment negatively; however, optimistic thinking (${\beta}=0.228$; p = 0.008) positively affected overall WRQoL score. Conclusion: Nurses with PMS have decreased levels of work-related quality of life in their professional lives. Methods to help cope with cyclic premenstrual symptoms may be used, and as a result, productivity and work-related quality of life may increase.
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Effect of Premenstrual Syndrome on Work-Related Quality of Life in Turkish Nurses
Hatice Kahyaoglu Sut,Elcin Mestogullari 한국산업안전보건공단 산업안전보건연구원 2016 Safety and health at work Vol.7 No.1
Background: Little is known about the effects of premenstrual syndrome (PMS) on work-related quality of life in nurses. We aimed to investigate the effect of PMS on work-related quality of life in Turkish nurses. Methods: A total of 134 volunteer nurses were included in this cross-sectional study between January 2015 and March 2015. One hundred and thirty-four nurses completed a questionnaire regarding demographic data, the Premenstrual Syndrome Scale (PMSS), and the Work-Related Quality of Life Scale (WRQoL). The nurses were classified as having or not having premenstrual syndrome according to the PMSS. Results: The average age was 29.5±7.1 years and the prevalence of PMS was 38.1%. The total score of PMSS was significantly negatively correlated with the overall score (r = -0.341; p < 0.001) and all subscale scores of the WRQoL and ranged from -0.207 to -0.402 (p < 0.05 for all). All of the WRQoL subscale scores except stress at work (p = 0.179) in nurses with PMS were significantly lower than those of nurses without PMS (p < 0.05). The age (b = -0.258; p = 0.021) and PMSS total score (b = -0.314; p < 0.001) increment negatively; however, optimistic thinking (b = 0.228; p = 0.008) positively affected overall WRQoL score. Conclusion: Nurses with PMS have decreased levels of work-related quality of life in their professional lives. Methods to help cope with cyclic premenstrual symptoms may be used, and as a result, productivity and work-related quality of life may increase.
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Numerical Analyses of Piles Subjected to Lateral Soil Movement
Mehmet Rifat Kahyaoglu,Gökhan Imançli,Okan Önal,Arif S. Kayalar 대한토목학회 2012 KSCE Journal of Civil Engineering Vol.16 No.4
Load transfer to piles due to the relative movement between the piles and the moving soil is a fairly complex soil-pile interaction problem. Different analysis methods are available in literature to estimate the loads on piles. However, the predicted loads on the piles calculated by these methods vary due to insufficient representation of loading conditions and ignoring relative pile and soil movement. In this paper, three dimensional finite element analyses have been performed to evaluate the load transfer mechanism of free head passive pile groups in purely cohesionless soils. Numerical analyses are classified to address two most common passive pile cases, namely piles adjacent to embankments and piles used for slope stabilization. The effects of relative pile and soil displacement, pile spacing and pile arrangement on soil arching are investigated by numerical simulations. It is observed that load transfer decreases parallel to a decrease in pile spacing for piles adjacent to embankments contrary to piles used for slope stabilization.
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Performance functions for laterally loaded single concrete piles in homogeneous clays
Imancli, Gokhan,Kahyaoglu, M. Rifat,Ozden, Gurkan,Kayalar, Arif S. Techno-Press 2009 Structural Engineering and Mechanics, An Int'l Jou Vol.33 No.4
A key parameter in the design of a laterally loaded pile is the determination of its performance level. Performance level of a pile is usually expressed as the maximum head deflection and bending moment. In general, uncertainties in the performance of a pile originates from many factors such as inherent variability of soil properties, inadequate soil exploration programs, errors taking place in the determination of soil parameters, limited calculation models as well as uncertainties in loads. This makes it difficult for practicing engineers to decide for the reliability of laterally loaded piles both in cohesive and cohesionless soils. In this paper, limit state functions and consequent performance functions are obtained for single concrete piles to predict the maximum bending moment, a widely accepted design criterion along with the permissible pile head displacement. Analyses were made utilizing three dimensional finite element method and soil-structure-interaction (SSI) effects were accounted for.
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Ahmet Arif Filiz,Serkan Kahyaoglu,Cemal Resat Atalay 대한산부인과학회 2024 Obstetrics & Gynecology Science Vol.67 No.1
Objective The International ovarian tumor analysis (IOTA)-Assessment of Different NEoplasias in the adneXa (ADNEX) model and the ovarian-adnexal reporting and data system (O-RADS) were developed to improve the diagnostic accuracy of adnexal masses in the preoperative period. This study aimed to evaluate the predictive values of both models in patients who underwent surgery for an adnexal mass at our hospital, based on the final pathological results. Methods This study included patients who underwent surgery for adnexal masses at our hospital between 2019 and 2021 and met the inclusion criteria. The IOTA ADNEX model and O-RADS scores were calculated preoperatively. Results Of the 413 patients, 295 were diagnosed with benign tumors and 118 were diagnosed with malignant tumors. The mean cancer antigen 125 (CA-125) levels for patients diagnosed with benign and malignant were 15.2 unit/mL and 72.5 unit/mL, respectively. According to the receiver operator characteristic analysis for serum CA-125 in postmenopausal and premenopausal patients, the cutoff value of 34.8 unit/mL had a sensitivity of 70.8% and specificity of 83.8% and 180.5 unit/mL had a sensitivity of 32.1% and a specificity of 92.7%, respectively (P<0.001). The sensitivity and specificity values of the IOTA ADNEX model and O-RADS were found as 78.8-48.3% and 97.9-93.5% respectively (P<0.001). There was moderate agreement between the IOTA ADNEX model and O-RADS (Kappa=0.53). Conclusion The IOTA ADNEX model has a similar specificity to the O-RADS in malignancy risk assessment, but the sensitivity of the IOTA ADNEX model is higher than that of the O-RADS. The IOTA-ADNEX model can help avoid unnecessary surgeries.
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Performance functions for laterally loaded single concrete piles in homogeneous clays
Gokhan mancli,M. Rifat Kahyaoglu,Gurkan Ozden,Arif S. Kayalar 국제구조공학회 2009 Structural Engineering and Mechanics, An Int'l Jou Vol.33 No.4
A key parameter in the design of a laterally loaded pile is the determination of its performance level. Performance level of a pile is usually expressed as the maximum head deflection and bending moment. In general, uncertainties in the performance of a pile originates from many factors such as inherent variability of soil properties, inadequate soil exploration programs, errors taking place in the determination of soil parameters, limited calculation models as well as uncertainties in loads. This makes it difficult for practicing engineers to decide for the reliability of laterally loaded piles both in cohesive and cohesionless soils. In this paper, limit state functions and consequent performance functions are obtained for single concrete piles to predict the maximum bending moment, a widely accepted design criterion along with the permissible pile head displacement. Analyses were made utilizing three dimensional finite element method and soil-structure-interaction (SSI) effects were accounted for.
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