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Composite Sand–Clay Infrastructural Soil Fills: Characteristic Consolidation and Hydraulic Properties
Get PDFIn the design construction of infrastructural projects comprised of geotechnical applications, including composite soil fill layers, compacted sand-clay soil fills are widely preferred as barrier layers, particularly in solid waste landfills, to minimize leakage, to prevent leachate from entering into groundwater. When bentonite clay with high water absorption capacity and low hydraulic conductivity is mixed with sand possessing relatively enhanced frictional properties, greater shear strength capacity, an effective fill material exhibiting low sensitivity to frost, and low volume change in case of wetting, drying can be obtained. On the other hand, when montmorillonite clay is loaded, due to highly critical volumetric contraction or dilation characteristics (high compressibility nature of clay), the soil fill composed of sand-clay will significantly consolidate. This situation may cause differential settlement problems of infrastructural fills employed in geotechnical applications. In this regard, the load conditions (mechanical effects) and the environmental conditions (physicochemical effects) in the field control compressibility characteristics and consolidation properties of sand-bentonite clay mixtures. This will ultimately impact the desired stability conditions of sand-clay soil layers built for constructed infrastructural fill, resulting in a deviation from anticipated performance conditions. To this end, in this study, the specimens of sand-bentonite clay mixtures prepared with different contents of sand-bentonite clay were subjected to one-dimensional consolidation tests to investigate the effect of bentonite content used in the mixture on consolidation behavior, hydraulic properties, and effect of sand amount on rate of consolidation and on resulting compressive strength behavior
On the Solutions of Some Equations in (p, q)-Calculus
Get PDFIn this paper, we introduce the Laplace equation in (p, q)-calculus and give the solutions of the equation using the separation method into its variables. We also give the (p, q)-calculus version of the equation of motion, which expresses the displacement of a falling field in a resistant environment. Finally, we obtain the solution of the Bernoulli’s equation in (p, q)-calculus. © 2024, Prof. Dr. Mehmet Zeki SARIKAYA. All rights reserved
Value engineering awareness in construction project management: Bursa province urban transformation projects
Get PDFGünümüzde kalite ve maliyet dengesinin önemi, rekabetin yoğunlaştığı global piyasalarda hayati bir rol oynamaktadır. Firmalar, yüksek kaliteli ürün ve hizmetler sunarken maliyetleri de etkin bir şekilde yönetmek zorundadır. Yenilikçi yaklaşımlar ve verimlilik artırıcı stratejiler, bu dengeyi kurmada kritik öneme sahiptir. Yüksek maliyetli üretim sektörlerinden birisi olan inşaat projelerinde de maliyetin önemi, projenin başarısının temel belirleyicilerinden biridir. Maliyet etkinliğini ve kaliteyi sağlamak için inşaat projelerinde son yıllarda faydalanılan değer mühendisliği bilinci büyük önem taşımaktadır. Bu bilinç, inşaat projelerinde kaynakların en verimli şekilde kullanılması ve maliyetlerin düşürülmesi için değer mühendisliği ilkelerinin sistematik bir şekilde uygulanmasını içerir. Bu çalışmada, günümüzde mimar ve mühendislerin değer mühendisliği bilinci, Bursa ili kentsel dönüşüm projeleri bağlamında anket yöntemi ile incelenmektedir. Örneklem grubu Bursa ilindeki kentsel dönüşüm projelerinde çalışmakta olan mimar, iç mimar, peyzaj mimarı, inşaat mühendisi, elektrik mühendisi ve makine mühendislerinden oluşmaktadır. Bu çalışma ile Değer Mühendisliğinin bilinirliği ve uygulanabilirliği sorgulanırken kentsel dönüşüm projelerinde maliyet ve kalite dengesi için öneminin ortaya çıkartılması amaçlanmaktadır.Today, the importance of quality and cost balance plays a vital role in the global markets where competition is concentrated. Firms must manage costs effectively while providing high-quality products and services. Innovative approaches and productivity-enhancing strategies are critical to achieving this balance. The importance of cost in construction projects, which are one of the high-cost production sectors, is one of the main determinants of the success of the project. Value engineering awareness that has been used in recent years in construction projects to ensure cost effectiveness and quality is of great importance. This awareness involves the systematic application of value engineering principles to make the most efficient use of resources and reduce costs in construction projects. In this study, the value engineering awareness of architects and engineers today is examined by the survey method in the context of urban transformation projects in Bursa province. The sample group consists of architects, interior architects, landscape architects, civil engineers, electrical engineers and mechanical engineers working on urban transformation projects in Bursa province. While the awareness and applicability of Value Engineering is questioned with this study, it is aimed to reveal the importance of cost and quality balance in urban transformation project
Methodologies for Decision-Making in the Health and Medicine Sector
No full textThe fields of medicine and healthcare have benefited significantly from technological advances, investments, and software in our ever-evolving and transforming world, as they have from these same developments in every other industry. Because of the tremendous strides that have been made in the realm of specialist software in the health industry, the health system has become significantly more technologically advanced and functional. As a consequence of advances in technology, diagnosis and treatment are now more easily available, and favorable outcomes are being achieved with greater frequency. The growth of Artificial Intelligence (AI) technology has resulted in the establishment of ultra-modern medical facilities, such as hospitals and other health institutions. In these hospitals that are getting more and more advanced, robotic surgery techniques are much better than traditional ones. This means that patients can recover faster and have a lower chance of complications. In this chapter, we take a look at the many approaches to decision-making that are utilized in the field of health and medicine. Machine learning, artificial intelligence, the internet of things, deep learning, and natural language processing are just a few of the major methods that are utilized in this discipline. This chapter also delves into the topics of organizational decision-making in healthcare as well as medical decision-making. In addition, the marketing of healthcare services and some of the benefits of using marketing tactics for health services are both covered in this chapter. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2024
Dinamik Çevre Koşullarında Örgütsel Çift Yönlülüğün Firma Performansına Etkisi
Get PDFAraştırmanın amacı örgütsel çift yönlülüğün firma performansına etkisinin ve söz konusu ilişkide çevresel dinamizmin moderatör rolünün tespit edilmesidir. Araştırma lojistik sektöründeki 340 üst ve orta kademe yöneticinin katılımı ile gerçekleştirilmiştir. Araştırmanın veri toplama süreci çevrimiçi anket formları üzerinden gerçekleştirilmektedir. Verilerin analizinde öncelikle faktör ve güvenilirlik analizleri, tanımlayıcı istatistikler, korelasyon analizi ve moderatör etki analizi yapılmıştır. Verilerin analizi SPSS 25 paket programı ve SPSS Process 2.16 makrosu aracılığı ile gerçekleştirilmiştir. Araştırma sonucunda örgütsel çift yönlülüğün firma performansını olumlu yönde etkilediği tespit edilmiştir. Ayrıca çift yönlülüğün firma performansına etkisinde çevresel dinamizmin aracılık rolü olduğu tespit edilmiştir. Araştırma sonuçlarına göre, çevresel dinamizm düzeyi düşük olan firmalarda etki (0,7214) daha yüksek iken, çevresel dinamizm düzeyi yüksek olan firmalarda etki (0,5464) daha düşük bulunmuştur. Bu bulgular, çevresel dinamizmin firma performansı üzerindeki etkisinin çevresel dinamizm düzeyine bağlı olarak farklılaştığını göstermektedir. Araştırma sonucunda yöneticilere, çevresel bağlamda uygulanabilecek stratejiler hakkında öneriler sunulmaktadır
The effect of conscious mindfulness-based program (MBP) applied to emergency nurses on their anxiety and quality of life: A randomized controlled study
Get PDFObjectives: This study aimed to examine the effect of a mindfulness-based program applied to nurses working in the emergency department on their anxiety and professional quality of life. Methods: The study was conducted as a randomized controlled experimental study with 50 nurses working in the emergency department. Data were collected with a sociodemographic information form, state-trait anxiety & imath;nventory (STAI), and quality of life scale for employees (ProQOL-30). Mindfulness-Based Program (FTP), which lasted for 8 weeks and was an application of 2.5 h/week, was applied to the experimental group. A pre-test before the application and a post-test after the application (1 week after the application was completed) were administered to the experimental and control groups. In evaluating the data, number, percentage, mean, standard deviation, Kurtosis, Skewness, Chi-Square, and Fisher's exact tests were used. Results: It was found that the STAI state and trait anxiety pre-test mean scores of emergency nurses were not significantly different between the experimental and control groups (p>0.05), but the STAI state anxiety post-test mean score was significantly lower in the experimental group (t=-3.527, p=0.01). In addition, no significant difference was detected between the ProQOL-30 scale general and all subscale pre-test scores of the experimental and control groups (p>0.05). In addition, while there was no significant difference between the ProQOL-30 scale general and sub-dimension pre-test and post-test scores of the control group (p>0.05), it was found that the ProQOL-30 general score average increased significantly after the application (t=-2.113). Conclusion: It was concluded that the mindfulness-based program is a program that reduces the anxiety levels of emergency room nurses and increases their work-life satisfaction levels
THE EFFECT OF THE LEVEL OF INSTITUTIONALIZATION IN HOTEL ENTERPRISES ON THE JOB SATISFACTION AND PERFORMANCE OF EMPLOYEES TO ACHIEVE THE SUSTAINABLE DEVELOPMENT GOALS: THE CASE OF TOURISM CENTER ISTANBUL [2]
Get PDFObjective: This research was conducted to measure the effect of the perceived INS-L of hotel businesses on employees' JS and JP to achieve the sustainable development goals (SDG). Theoretical Framework: The dynamism in the tourism sector has caused hotel businesses serving in destinations to increase both qualitatively and quantitatively, creating an intense competitive environment in the sector. In the tourism sector, where the number of conscious customers increases day by day, it has been understood over time that investments made only in physical terms are not sufficient, and investments in human resources have been increased. Method: This research was conducted in İstanbul, the tourism center of Turkey, which has the highest number of hotel establishments. A total of 677 employees working in hotel businesses participated in the research voluntarily. Care was taken to select the participants from employees working in different departments and in hotel businesses of different structures and classes. Survey forms consisting of questions used in previous studies were applied and the data were evaluated in the statistical package program. Results and Discussion: In the research, it was determined that employees' perceptions of INS-L had an impact on their JS and JP, and that there was a significant relationship between employees' JS and JP. Research Implications: At the end of the research; it has been emphasized that the INS-L of hotel businesses is important in achieving guest satisfaction and business success, and suggestions have been developed for businesses to ensure this. Originality/Value: The research examining the effect of employees' INS-L levels on their JS and JP offers significant originality and value for the tourism sector. © 2024, Editora Alumni In. All rights reserved
Üreme Özerkliği Ölçeği’nin Türkçe Geçerlik ve Güvenirliği
No full textObjective: This study was conducted to ensure the validity and reliability of the Reproductive Autonomy Scale. Methods: Methodological study type was adopted. After obtaining permission from the original scale owner, the language and content validity scale was applied to 386 female participants between the ages of 18-60. Explanatory factor analysis and confirmatory factor analysis were used for construct validity and reliability analyses of the study were performed. Results: It was found that excellent agreement in terms of chi-square/sd value of confirmatory factor analysis results (2,394); good fit in terms of GFI value (.943); good fit (.916) for AGFI value, good fit (.060) for RMSEA value; good fit (.946) in terms of CFI value. The Cronbach's Alpha coefficient of the scale, which consists of three sub-dimensions similar to the original scale, was calculated as.650 for the "Decision Making" subscale, .840, for the "Freedom from coercion" subscale, and .783 for the "Communication" subscale. The total Cronbach Alpha internal consistency coefficient value calculated for the whole scale was .84, showing that the scale was valid and reliable. Conclusion: The scale was found to be valid and reliable in Turkish women. © 2024, Ataturk Universitesi. All rights reserved
EXPLORING THE MODERATING ROLE OF PERCEIVED SUPERVISOR SUPPORT IN THE EFFECT OF EMPLOYEES’ WORKPLACE LONELINESS ON INTENTION TO QUIT FROM THE SDGS PERSPECTIVE
Get PDFObjective: The main purpose of this study is to investigate the moderating role of perceived supervisor support in the effect of workplace loneliness on intention to quit. Theoretical Framework: The underpinning theories of this study is organizational support theory (OST) and social exchange theory (SET). This study focuses on decent work and economic growth goal, one of the Social Development Goals (SDGs), as it contains examining if the different work conditions due to the COVID 19 pandemic may cause different attitudes and behaviors. Method: This study employs a survey technique, one of the quantitative research methods, on 200 employees working for a cruise tourism company. The collected data were analyzed using SPSS and SmartPLS statistical programs. Results and Discussion: As a result of the findings, it was found that emotional deprivation has no effect on employees’ intention to quit while the lack of social companionship has positive and significant effect on intention to quit. In addition, it was determined that perceived supervisor support has a moderating effect on the association between emotional deprivation and intention to quit whereas no moderating role of perceived supervisor support on the relationship between lack of social companionship and intention to quit was found. Originality/Value: This study contributes to the literature by testing the theories of OST and SET in terms of diferent sectoral characteristics in the business world. Questioning the theories of organizational support and social exchange widens the scope of related literature. While enriching the existing literature by conducting such a research, a new explanation has been provided for the associations between variables. © 2024, Editora Alumni In. All rights reserved
The relationship between free will and determinism and psychological resilience and life satisfaction in adults
Get PDFÇalışmanın temel amacı yetişkin bireylerde özgür irade ve belirlenimcilik anlayışı ile psikolojik sağlamlık ve yaşam doyumu arasındaki ilişkinin belirlenmesidir. Bu amaç doğrultusunda, 18-65 yaş aralığında, toplam 585 katılımcıya Özgür irade ve Belirlenimcilik Ölçeği, Psikolojik Sağlamlık Ölçeği ve Yaşam Doyum Ölçeği uygulanmıştır. Analiz sonuçları doğrultusunda; Özgür irade ve belirlenimcilik ölçeğinin kaderci belirlenimcilik alt boyutunda ve yaşam doyumu toplam puanında cinsiyetler arasında anlamlı düzeyde fark vardır. Kadın katılımcıların kaderci belirlenimcilik ve yaşam doyumu puan ortalamaları erkeklerin puan ortalamalarından daha yüksektir. Eğitim düzeyi açısından bakıldığında, eğitim düzeyi lise olan katılımcıların yaşam doyum puan ortalamaları, eğitim durumu lisansüstü olan katılımcıların ortalamalarından anlamlı düzeyde düşüktür. Gelir durumuna göre bakıldığında, düşük gelir düzeyine sahip katılımcıların psikolojik sağlamlık puan ortalamaları yüksek gelir düzeyine sahip katılımcılardan anlamlı düzeyde düşüktür. Benzer şekilde yaşam doyumu puan ortalamaları da düşük gelir düzeyine sahip katılımcılarda orta gelir ve yüksek gelir düzeylerine sahip katılımcılara göre daha düşüktür. Yaşa göre bakıldığında, 18-25 yaş grubundaki katılımcıların bilimsel belirlenimcilik puan ortalamaları, 46-65 yaş grubundaki katılımcılardan anlamlı düzeyde daha yüksektir. Ayrıca 18-25 yaş grubundaki katılımcıların rastgelelik alt boyut puan ortalamaları, 26-45 yaş grubundaki ve 46-65 yaş grubundaki katılımcılardan anlamlı düzeyde daha yüksektir. İlişkisi olmayan katılımcıların bilimsel belirlenimcilik, rastgelelik ve yaşam doyumu puan ortalamaları, ilişkisi olan katılımcılara göre anlamlı düzeyde farklıdır. İlişkisi olan katılımcıların yaşam doyum düzeyleri ise ilişkisi olmayan katılımcılara göre daha yüksektir. Özgür irade ve belirlenimcilik anlayışı ve psikolojik sağlamlık düzeyi arasındaki ilişkiye bakıldığında psikolojik sağlamlık düzeyinin, kaderci belirlenimcilik ve özgür iradeyle pozitif yönde anlamlı bir ilişkiye sahip olduğu görülmektedir. Bilimsel belirlenimcilik ve rastgelelik boyutlarının ise psikolojik sağlamlık ile anlamlı düzeyde ilişkiye sahip olmadığı bulgulanmıştır. Özgür irade ve belirlenimcilik anlayışı ve yaşam doyumu arasındaki ilişkiye bakıldığında, yaşam doyumunun kaderci belirlenimcilik ile pozitif yönde, bilimsel belirlenimcilik ve rastgelelik ile negatif yönde anlamlı ilişkilere sahip olduğu görülmektedir. Özgür irade boyutunun ise yaşam doyumu ile anlamlı düzeyde ilişkiye sahip olmadığı bulgulanmıştır. Psikolojik sağlamlık ve yaşam doyumu arasındaki ilişkinin incelenmesi sonucunda ise bu iki değişken arasında pozitif yönlü anlamlı bir ilişki olduğu bulgulanmıştır.The main purpose of the study is to determine the relationship between free will and determinism, psychological resilience and life satisfaction in adults. For this purpose, the Free Will and Determinism Scale, Psychological Resilience Scale and Life Satisfaction Scale were administered to a total of 585 participants between the ages of 18-65. According to the results of the analysis; there is a significant difference between genders in the fatalistic determinism sub-dimension of the free will and determinism scale and in the total life satisfaction score. The mean scores of female participants in fatalistic determinism and life satisfaction are higher than the mean scores of male participants. In terms of education level, the mean life satisfaction scores of the participants with high school education level are significantly lower than the mean scores of the participants with graduate education level. In terms of income level, the mean psychological resilience scores of the participants with low income level were significantly lower than those of the participants with high income level. Similarly, the mean life satisfaction scores of the participants with low income levels were lower than those of the participants with medium income and high income levels. The mean scores of scientific determinism, randomness and life satisfaction of unrelated participants are significantly different. The mean scientific determinism scores of the participants in the 18-25 age group are significantly higher than those in the 46-65 age group, and the mean randomness sub-dimension scores of the participants in the 18-25 age group are significantly higher than those in the 26-45 age group and 46-65 age group. When the relationship between free will and determinism and psychological resilience level is examined, it is seen that psychological resilience level has a significant positive relationship with fatalistic determinism and free will. It was found that scientific determinism and randomness dimensions did not have a significant relationship with psychological resilience. When the relationship between free will and determinism and life satisfaction is examined, it is seen that life satisfaction has a significant positive relationship with fatalistic determinism and a significant negative relationship with scientific determinism and randomness. It was found that the free will dimension did not have a significant relationship with life satisfaction. As a result of the examination of the relationship between psychological resilience and life satisfaction, it was found that there was a significant positive relationship between these two variables