Sürdürülebilir Kalkınma Amaçları
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- Dertli, Enes(117)
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Yayınlar
- MakaleAçık Erişim2022Nurses’ Perceptions of Clinical Governance Climate
Öztürk, Havva; Kaba, Nagihan Köroğlu
Background: Clinical governance climate is a governance approach that aims at supporting\rcommunication and interaction, minimizing errors, and continually improving and developing\rservice process in organizations.\rMethods: The study population was composed of 1845 nurses working at public, university,\rand private hospitals in Trabzon Province. The sample was composed of 315 nurses recruited\rusing a stratified sampling method. Data were collected using Information Request Form\rand Clinical Governance Climate Questionnaire.\rResults: According to the nurses, the clinical governance climate score of hospitals was\r182.62 ± 28.32 (min = 60, max = 300). In the study, it was found that the average total score\rand the sub-scale scores of the clinical governance climate of those nurses who were (1)\raged ≤25 years and ≥36 years; (2) were female; (3) worked in managerial positions; (4) chose\rthe clinical service where they were employed willingly; (5) were satisfied with the clinical\rservice, nursing profession, and managers; (6) cared for 11-20 patients in a shift, knew what\rclinical governance was; and (7) joined trainings/meetings about clinical governance were\rsignificantly and statistically different as compared to other nurses (P < .05).\rConclusion: Nurses regarded and assessed the clinical governance climate of the hospitals\rwhere they worked as moderate. As a result of the study, it was recommended that educations\rand trainings about clinical governance climate be provided to nurses; interventions\rthat will maximize their satisfaction be made; they be given the chance to choose the clinical\rservicers where they will work; and the number of patients be kept balanced.
AtıfTR Dizin1
İncele - MakaleAçık Erişim2022Aronia (Aronia melanocarpa Michx Elliot) Production and Evaluation Methods \rin the World and Turkey\r
Erdogan, Ummugulsum; Şahin, Ali
Cultivation and consumption of berry fruits in the world and in our country is increasing due to \rreasons such as different ways of evaluation, high income per unit area and health benefits. Aronia, \rwhich belongs to the Rosaceae family, is a berry type that can be easily grown in temperate climates \rand has a high yield per unit area. Aronia is included in healthy nutrition programs due to the \rantioxidants, phenols, minerals and vitamins it contains. Besides fresh consumption, aronia fruits are \ralso used by drying, processing into products such as fruit juice, vinegar, jam, tea, marmalade.\r
AtıfOpenAlex10TR Dizin5İncele - MakaleAçık Erişim2022Determination of Color and Odor Preferences of Honey Bees (Apis Mellifera L.)\r
Erdoğan, Yaşar; Yavuz, Kani
This study was carried out in the beekeeping research area of Bayburt University in order to\rdetermine the effect of odor and color on plant preference of honeybees in 2021. The experimental\rsetup was established at a distance of 200 meters from the apiary where 80 Caucasian bees (Apis\rmellifera caucasica) colonies are located. As a result of the study, the most preferred feeders were\rthe control group (pure sucrose syrup) (9.81 pieces), and the least preferred feeders were the rose-\rscent group (2.58). The effect of odor on honeybees' feed preferences varied according to months.\rConsidering the effect of months on honeybees' visits to their feeders, the most visited feeders were\rMelissa (6.8) in June, control (11.69) in July, and control (14.58) in August. The highest number of\rfeeder visits by honeybees was in August (9.24), and the lowest (2.89) in June. Considering the\rcolor preferences of honeybees, the most visited forage color was blue (5.98) and the least red was\r4.89. The effect of colors on the feed preferences of honeybees also varied according to the months.\rThe highest visitor bee average was found in the blue colored feeder (4.53) in June, the green\rcolored feeder (7.24) in July, and the yellow and blue colored feeders (7.29) in August.
- MakaleAçık Erişim2022Physicochemical Properties of Honey Produced at Different Altitudes
Turan, Metin; Erdoğan, Yaşar
The types and densities of honeyed plants vary depending on the altitude. This causes the amount\rand Physicochemical structure of honey produced in apiaries of different altitudes to change. In this\rstudy, honey harvest from the honeybee colonies placed at different altitudes in the same\rgeographical region was carried out in the first week of September. Standard laboratory methods\rwere used to determine some physicochemical properties of the honey samples. Some of the\rminimum and maximum average values obtained as a result of the analysis of honey samples;\rmoisture 14.70% and 18.60%, free acidity 20.50 meq/kg and 25.30 meq/kg, pH 3.20 and 4.30, EC\r0.22 and 0.44 mS/cm, fructose 32% to 45%, glucose 0.10% to 0.18%, sucrose from 0.66% 1.80%,\rmaltose ranged from 0.66% to 1.80%. Also, HMF ranged from 1.80 mg/kg to 3.50 mg/kg, proline\r530.00 mg/kg and 710.00 mg/kg, Density from 1.44 g/cm3 to 1.49 g/cm3, Invertase 20.30 U/kg-\r28.50 U/kg, Diastase activity 13.23-19.07 and Total phenolic content ranged from 76.00-94.00 g.\rIt has been determined that the physicochemical structures of honey produced at different heights\rare statistically different from each other. This study aims to determine the effect of altitude\rdifference on the quantity and physicochemical structure of honey
AtıfOpenAlex3İncele - MakaleAçık Erişim2022Bayburt İli Hava Kirliliğinin İstatistiksel Yöntemlerle Analizi
Bayraktar, Hanefi; Türkkan, Gokçen Eryılmaz; Hırca, Tuğçe
Bu çalışmada Bayburt şehir merkezine ait hava kirleticilerinin zamansal değişimleri, yerel meteorolojik parametreler ile olan etkileşimleri ve trendleri istatistiki yöntemlerle analiz edilmiştir. Bu kapsamda, 2017-2019 dönemi saatlik ölçülen PM10, SO2, NO, NO2, NOX ve O3 ile saatlik sıcaklık (t), rüzgâr hızı (ws), nem (rh) ve basınç (p) verileri analiz edilmiştir. Birincil kirleticilerden PM10 konsantrasyonlarının ortalama değeri 40.5 μg/m3 ve SO2 konsantrasyonlarının ortalama değeri ise 6.85 μg/m3 olarak tespit edilmiştir. Mann-Whitney U testi sonuçlarına göre, kirletici konsantrasyonlarının soğuk mevsim ortalamaları sıcak mevsim ortalamalarından istatistiki manada anlamlı şekilde farklılaştığı tespit edilmiştir (p=0.000<0.05). Kruskal Wallis testine göre kirletici konsantrasyonlarının yıllara göre ortalamaları arasında da istatistiksel açıdan anlamlı bir farklılaşma olduğu saptanmıştır (p=0.000<0.05). Hangi yıllar arasında farklılaşmanın olduğu Post-Hoc/Tamhane’s T2 analizi ile belirlenmiştir. Spearman’s rho korelasyon analizi sonuçları hava kirleticiler ile meteorolojik parametreler arasında istatistiki manada anlamlı bir ilişki ortaya koymaktadır (p=0.000<0.05). Buna göre, PM10 ile bağıl nem arasındaki ilişkinin negatif yönlü, SO2 ile hava basıncı arasındaki ilişkinin pozitif yönlü, NO, NO2 ve NOX ile rüzgâr hızı ve sıcaklık arasındaki ilişkinin negatif yönlü, O3 ile sıcaklık ve rüzgâr hızı arasındaki ilişkinin pozitif yönlü olduğu tespit edilmiştir. Yenilikçi trend analiz yöntemi (ITA) sonuçlarına göre, PM10 seviyeleri azalış, diğer kirleticiler ise artış eğilimi göstermektedir. Kullanılan verilerin zaman aralığı göz önüne alındığında kirletici ortalamalarının her ne kadar sınır değerleri aştığı gözlenmese de kirleticilerin artış eğiliminde olması, pozitif hava kalitesinin korunması için daha fazla çaba gösterilmesi gerektiğini ortaya koymaktadır. Çalışmadaki istatistiksel veri analizleri SPSS 22 programı ile gerçekleştirilmiştir.
AtıfOpenAlex3TR Dizin2İncele - MakaleAçık Erişim2022Attitudes and Behaviors of Turkish Consumers Regarding the Olive Oil Consumption
Özçelik, Beraat; Altuntaş, Ümit; Güzel, İsmail; Yılmaz, Özlem; Uluata, Sibel
Bu çalışmanın amacı, Türk tüketicilerinin Akdeniz diyetinin önemli bir parçası olan zeytinyağı tüketimine ilişkin tutum ve davranışlarını ortaya koymak, zeytinyağının duyusal özelliklerinin tüketiciler üzerindeki etkisini ölçmek ve bu konudaki farkındalıklarını ve tutumlarını belirlemektir. Literatür araştırması doğrultusunda, tüketicilerin zeytinyağı tercihinde en çok önem verdiği özellikler ve zeytinyağı satın alma/tüketim sıklığı Türkiye'de sıklıkla mutfaklarda kullanılan zeytinyağının önemi ve mevcut durumu göz önünde bulundurularak, tüketicilerin zeytinyağı tercihinde etkili olan parametreleri değerlendirmek için incelenmiştir. Zeytinyağı tüketim ve satın alma sıklığı, ambalaj tercihi, duyusal özelliklerin önemi gibi anket soruları hazırlanmış ve anket çalışması tasarlanmıştır. Bu anket çalışmasında tüketicilerin demografik ve sosyo-ekonomik yapıları da dikkate alınmış ve elde edilen verilerin demografik özelliklerine (cinsiyet, yaş, eğitim, gelir düzeyi) göre farklılık gösterip göstermediği istatistiksel olarak tespit edilmiştir. Belirlenen tasarım doğrultusunda "VETİ" programı ile hazırlanan anket Türkiye'de yaşayan 272 kişiye uygulanmıştır. Anketin istatistiksel analizi SPSS paket programı ile gerçekleştirilmiş, verilerin analizinde frekans dağılımı ve Ki kare Öz Bu çalışmanın amacı, Türk tüketicilerinin Akdeniz diyetinin önemli bir parçası olan zeytinyağı tüketimine ilişkin tutum ve davranışlarını ortaya koymak, zeytinyağının duyusal özelliklerinin tüketiciler üzerindeki etkisini ölçmek ve bu konudaki farkındalıklarını ve tutumlarını belirlemektir. Literatür araştırması doğrultusunda, tüketicilerin zeytinyağı tercihinde en çok önem verdiği özellikler ve zeytinyağı satın alma/tüketim sıklığı Türkiye'de sıklıkla mutfaklarda kullanılan zeytinyağının önemi ve mevcut durumu göz önünde bulundurularak, tüketicilerin zeytinyağı tercihinde etkili olan parametreleri değerlendirmek için incelenmiştir. Zeytinyağı tüketim ve satın alma sıklığı, ambalaj tercihi, duyusal özelliklerin önemi gibi anket soruları hazırlanmış ve anket çalışması tasarlanmıştır. Bu anket çalışmasında tüketicilerin demografik ve sosyo-ekonomik yapıları da dikkate alınmış ve elde edilen verilerin demografik özelliklerine (cinsiyet, yaş, eğitim, gelir düzeyi) göre farklılık gösterip göstermediği istatistiksel olarak tespit edilmiştir. Belirlenen tasarım doğrultusunda "VETİ" programı ile hazırlanan anket Türkiye'de yaşayan 272 kişiye uygulanmıştır. Anketin istatistiksel analizi SPSS paket programı ile gerçekleştirilmiş, verilerin analizinde frekans dağılımı ve Ki kare testleri kullanılmıştır. Bu anket çalışması sonucunda, Türk tüketicilerin kendilerine yöneltilen sorulara verdikleri yanıtlara göre, incelenen demografik değişkenlere, "cinsiyet", "yaş" ve "eğitim durumu" ve "gelir düzeyi"ne göre istatistiksel farklılıklar bulunmaktadır.
AtıfOpenAlex2TR Dizin2İncele - MakaleAçık Erişim2022Modeling the Effect of Pour Height, Casting Temperature and Die Preheating Temperature on the Fluidity of Different Section Thicknesses in Permanent Mold Casting of Al12Si Alloys
Colak, Murat; Asan, Yunus Emre
The first and most important step of the casting method is that the liquid metal completely fills the mold cavity. One of the common mistakes in the casting process is that the liquid metal does not fully fill the mold cavity. For this reason, there is a need to improve the fluidity properties of aluminum alloys, the usage area of which is expanding thanks to its many advantageous properties. The aim of this study is to examine the parameters affecting the fluidity in the casting of Al12Si alloy by modeling techniques. The effects of varying pouring height, casting temperature and mold preheating temperature on fluidity in different section thicknesses were investigated in permanent mold casting. A specially designed mold with 2 mm, 4 mm, 6 mm and 8 mm section thickness was used in the study. Modeling studies were carried out with the FlowCast filling module, which is integrated into the SolidCast Casting simulation program. When the results are examined; It has been determined that all parameters play an active role on fluidity and different filling levels in different section thicknesses.
AtıfOpenAlex7TR Dizin1İncele - MakaleAçık Erişim2022Housing Demand Forecasting with Machine Learning Methods
Emec, Seyma; Tekin, Duygu
Housing is a place where sustainable urban spaces are produced and where people's physical, cultural, environmental, economic, social and psychological needs are evaluated together with their surroundings, rather than just a building where the need for shelter is met. With the acceleration of urbanization, new needs arise, and the first of these is the need for housing. The housing sector has become one of the most dynamic and continuous sectors associated with the increase in the need for housing. The need for adequate and accessible housing comes to the forefront in our country as well as in the world. Understanding and predicting the key features determining housing prices and value is an important consideration for urban planners and housing policymakers. In this study, machine learning and artificial neural network models were used to predict the housing demand of Konya, and their forecasting performances were compared. As a result, it was concluded that ANN is a better alternative for housing demand forecasting in Konya.
AtıfOpenAlex3TR Dizin3İncele - MakaleAçık Erişim2022Health-Seeking Consumer: Cognitive Dissonance Encountered After Panic Buying
Yildiz, Tugba; Devecı, Fatma Gorgün
This study aims to specify whether the “health-seeking” consumers’ information overload and cyberchondria that arise as a result of the information they acquire, cause panic buying and whether these purchases can later cause cognitive dissonance. The study sample, for which an online survey method was preferred, consisted of consumers aged 18 years and older who stated that they made panic purchases due to health concerns. Structural equation modeling and mediation analyses were applied to analyze the data in the study, which included 400 participants. The findings showed that health information seeking has an effective on information overload; both information and communication overload have an effective on cyberchondria; cyberchondria has an effective on panic buying and cognitive dissonance dimensions. Panic buying has an effective on cognitive dissonance dimensions and has a mediating effect between cyberchondria and cognitive dissonance dimensions. People's health concerns are a constant, which will in turn lead to a cycle of seeking information. With this foresight, the research investigates the consumers’ panic buying. However, proposed research model does not end with panic buying. The focus is on the response of the consumer after these purchases, and this is thought to be a contribution to the literature.
AtıfOpenAlex3İncele - MakaleAçık Erişim2022Forecasting of Export Volume Using Artificial Intelligence Based Algorithms
Ozden, Erdemalp
Technological breakthroughs have transformed communication and taken transportation, health, and commerce to an unprecedented level. In this way, sudden developments have rapidly affected all countries. In this context, analysis methods are changing compared to the past, and annual analyses fail to catch the trend even for macroeconomic indicators. In this paper, new artificial intelligence-based estimation methods were used to see the future trend of export volume, and their estimation performances were compared by adding them to the classical econometric method. Historical quarterly data from 2013 to 2021 were used in the training and testing phases of the models. For this purpose, the variables of gross domestic product, foreign direct investment, and dollar exchange rate, which affect the export volume, were determined as inputs in estimating the export volume. According to the analysis results, support vector machine model was determined as the best method for predicting export volume in Turkey. This study can provide an essential basis for policymakers to export estimation and formulate their export-enhancing policies effectively.
- MakaleAçık Erişim2022Investigation of green consumers 'subjective well being within the scope of purchase behavior, attitudes and personality traits
Erciş, Aysel; Yildiz, Tugba
Environmental problems that increase with global developments require individuals to behave more envi- ronmentally. The determination of this requirement depends on increasing the awareness of individuals and motivating green consumer behaviors. At this point, one of the most important factors is the happiness and satisfaction levels of people's lives, known as subjective well-being. The increase in the subjective well-being of individuals creates a win-win relationship between the environment and the consumer, and presents the gains of being a green consumer back to the consumer as life satisfaction. In this study, personality traits were first examined in order to define green consumers correctly. Later, the effect of personality traits on the environment and helping attitudes was revealed, and finally, the effect of green purchasing behavior on sub- jective well-being, which is an important indicator of social welfare, was investigated. The results revealed that personality traits affect green consumers' attitudes towards both the environment and helping, and these attitudes have an effect on green purchasing behavior. In addition, it was determined that green purchasing behavior was effective on the output variable of the model, subjective well-being.
AtıfOpenAlex5TR Dizin2İncele - MakaleAçık Erişim2022Analysis of the Validity of the Environmental Kuznets Curve Hypothesis for Turkey
Yıldız, Şaduman
Environmental wastes increasing with the industrialization process have caused environmental problems to come into prominence worldwide. Therefore, the relationship between economic growth and environmental pollution has become the center of attention for many researchers, and many studies have been conducted. One of the most important hypotheses that reveal the relationship between these variables is the Environmental Kuznets Curve (EKC). In this context, the study aimed to examine the validity of the EKC, which revealed an inverse-U-shaped relationship between economic growth and environmental pollution, for Turkey in the period between 1990 and 2015. The relationship between environmental pollution and economic growth in the study was analyzed through the ARDL limit test. According to the analysis results, it was concluded that the EKC hypothesis was valid for Turkey in the period mentioned. In this respect, environmental degradation initially rises as economic growth increases, but environmental pollution decreases with the increase in environmental consciousness after a certain threshold growth level. Moreover, the study elucidated that the increase in the amount of renewable energy consumption reduced environmental pollution. Accordingly, it is recommended to produce with clean technology that will enhance the environmental quality in the production process and implement a stable growth policy that will increase the amount of renewable energy consumption within the total energy consumption. Furthermore, legal regulations can be made to promote the use of environmentally friendly technologies in production, and tax reductions or various investment supports can be provided within this framework.
AtıfOpenAlex1İncele - MakaleAçık Erişim2022Farklı substratlar, Pleurotus ostreatus'un antioksidan özelliklerini ve antimikrobiyal aktivitesini etkiler mi?
Karaoğlu, Şengül Alpay; Peksen, Aysun; Can, Zehra; Bozdeveci, Arif; Avcı, Sibel
Öz: Bu çalışmanın amacı, yetiştirme ortamının Pleurotus ostreatus (Jacq. ex Fr.) P. Kumm.'un antioksidan özellikleri ve antimikrobiyal aktiviteleri üzerindeki etkisini belirlemektir. Çalışmada beş adet talaş (%80) ve atık (%20 Çay Atığı veya Buğday Kepeği) ile farklı oranlarda (%80 Talaş + %20 TW, %80 Talaş + 20% GW) yetiştirme substratları hazırlanmıştır. Toplam 19 farklı ortamda yetiştirilen P. ostreatus'tan elde edilen metanol ekstraktların, mikroorganizmalara karşı antimikrobiyal aktiviteleri agar kuyu difüzyon tekniği ile test edildi. Toplam fenolik içerik, Folin-Ciocalteau prosedürü kullanılarak ölçülmüştür. Antioksidan kapasitesi, DPPH'nin ferrik indirgeyici antioksidan gücü (FRAP) ve serbest radikal süpürücü aktivitesi kullanılarak belirlendi.. 80QS+20TW substratından elde edilen mantarların metanol ekstraktının bu çalışmada incelenen tüm mikrooganizmalara karşı en etkili ekstrakt olduğu belirlendi. Farklı substratlar üzerinde yetiştirilen mantar ekstraktlarının antioksidan içerikleri arasında önemli farklılıklar (P
AtıfOpenAlex1İncele - MakaleAçık Erişim2022Impact of gossypin on gene expression of HSP60 and HSP70 in different cancer cell lines
Dirican, Ebubekir; Çinar, Trfan
Purpose: The aim of this study is to evaluate the impact of gossypin on the expression level of heat shock proteins (HSPs) genes in different cancer cells. Materials and Methods: Cells were grown under standard culture conditions. Cancer cells were treated with different concentrations (5-100 mu g/ml) of gossypin and cisplatin (50 mu M) as positive control. Cell viability and effective dose range (5-100 mu g/ml) of gossypin were determined by MTT at 24, 48 and 72 hours. After RNA isolation and cDNA synthesis, HSP60 and HSP70 gene expression levels were analyzed using RT-PCR. For gene expression analysis, the 2-(Delta Delta ct) method was used. Results: According to the Mil results, 25-50-100 mu g/ml of gossypin doses were found effective on HSP60 and HSP70 gene expression levels in the cancer cell lines. Gossypin affected with dose-dependently the expression of HSP60 and HSP70 in the three cell lines. In the three cell lines, 50 mu g/ml and 100 mu g/ml of gossypin doses significantly reduced the expression of HSP60 and HSP70 compared to control group. Conclusion: Our results strongly supported the anticarcinogenic effect of gossypin at various doses in different cell lines. However, we believe that further in vivo research and human studies are needed. Our findings suggest that gossypin could be suitable candidate agent for further investigation to develop new strategies for the prevention and/or treatment of different cancer types.
AtıfWoS1OpenAlex2
İncele - MakaleAçık Erişim2022Investigation of the effect of gossypin on MMP-2 and MMP- 9 genes in prostate cancer cells
Dirican, Ebubekir; Çinar, Irfan
Purpose: The aim of this study is to explore the effects of gossypin on matrix metalloproteinases -2 (MMP-2) and MMP-9 genes in prostate cancer cells. Materials and Methods: PC3 cells were grown in culture and treated with three different concentrations of gossypin (25-50-100 mu g/ml) and cisplatin (50 mu M) as a positive control. First, RNA isolation was performed. Then, cDNA synthesis was performed and RT-PCR was used to evaluate mRNA expression levels of MMP-2 and MMP-9 genes. Results: Gossypin decreased MMP-2 and MMP-9 mRNA expression in prostate cancer cells in a concentrationdependent manner. Three concentrations (25-50-100 mu g/ml) of gossypin in PC3 cells reduced the mRNA expression of the MMP-2 gene. While the fold change value of MMP-2 gene expression was 0.3482 +/- 0.040 in the 100 mu g/ml gossypin group, it was 1.007 +/- 0.1425 in the control group. In addition, 50 mu g/ml and 100 mu g/ml concentrations of gossypin decreased the mRNA expression of the MMP-9 gene. The expression level of the MMP-9 gene in prostate cancer cells was 0.4740 +/- 0.038 in the 100 mu g/ml gossypin administered group, while it was 1.009 +/- 0.1687 in the control group. There was a positive correlation between the expressions of the MMP-2 and MMP-9 genes. Conclusion: According to the results obtained, it is seen that gossypin reduces the expression of MMP-2 and MMP9 genes in prostate cancer cells and the effects of gossypin on other genetic and epigenetic mechanisms in cancer need to be investigated to reveal the anti-cancer.
AtıfWoS2OpenAlex2TR Dizin1İncele - MakaleAçık Erişim2022Exploring Problem Areas of Elderly Patients with Diabetes and the Support Provided by Their Family
Dastan, Buket; Hintistan, Sevilay
Objective: Diabetes increases problems in emotional areas particularly among the elderly patients by aggravating negative emotions such as loss, anxiety and fear and makes these patients need higher level of family support. This study aims at exploring problematic areas of the elderly diabetic patients and their family support levels. Methods: The data of this descriptive study were collected by the researcher by conducting a face to face interview with 218 elderly diabetic patients who presented to Endocrine Polyclinics of State Hospital between October 2015 and October 2016. To collect the data, Patient Information Form, Problem Areas in Diabetes Scale (PAID) and Hensarling's Diabetes Family Support Scale (HDFSS) were used. Results: Although problem areas among the patients were found to be fewer than expected; it was found that there were significant differences between problem areas and sex, diabetes time, treatment type, length of oral antidiabetic medicine use and insulin use, development of diabetes-related complication and hospitalization due to these complications in the recent year (p<0.05). Besides, the family support levels of the elderly patients were below the moderate level, and the number of individuals the patients live together with, the number of people receiving support due to diabetes and the number of people who received support from their spouses because of diabetes was a significant variable that affected HDFSS total score and the subscale scores (p<0.05). Conclusion: For a better diabetes management, sex and diabetes related variables should be taken into consideration while delivering health services and increasing family support levels can make positive contributions to the mood of the elderly patients.
AtıfWoS1OpenAlex1İncele - MakaleAçık Erişim2022Scopus SJRQ3DETERMINATION OF PARAMETERS AFFECTING KINETIC AND THERMODYNAMIC VALUES FOR LEAD REMOVAL USING WASTEWATER TREATMENT PLANT SEWAGE SLUDGE ASH
Irdemez, Sahset; Yesilyurt, Duygu; Torun, Fatma Ekmekyapar; Kul, Sinan
In this study, treatment of lead containing wastewater using sewage sludge ash obtained from the incineration unit in the domestic wastewater treatment plant in Gaziantep province in Turkey was investigated. The main purpose of the study is to determine the potential of using the treatment sludge ash, which comes out as waste in the treatment plant, in the treatment of wastewater of another industry. As a result of this study, the most suitable adsorption conditions were determined and focused on the kinetics of adsorption. In the experiments, the lead adsorption capacity of sewage sludge ash was determined as 122 mg g-1 at 0.5 g L-1 adsorbent concentration in wastewater containing 100 mg L-1 Pb2+under optimum conditions. As a result of the research, it was determined that the adsorption reaction proceeds according to the pseudo second degree reaction and is suitable for the Langmuir isotherm. As thermodynamic constants, & UDelta;H & DEG; = 7.407 kJ mol-1 and & UDelta;S & DEG; = 33.25 J mol-1 were determined. As a result of this, it was determined that the adsorption reaction was endothermic, spontaneous and random, and adsorption was physical adsorption. The results show that sewage sludge ash can be used in the treatment of water containing high concentrations of Pb2+.
AtıfWoS3OpenAlex4İncele - Derleme MakaleYalnız künye2022The Journey of Customer Identification: A Systematic Literature Review and Directions for Further Investigation
Vardarsuyu, Merve; Sunaoglu, Serife Kazanci
Customer identification has been a key concept in understanding consumers' relationships with brands. In this review article, we aim to provide a comprehensive overview of extant knowledge on customer identification and offer suggestions for future development in line with the gaps identified in the prior literature. We systematically review 73 peer-reviewed journal articles pertinent to customer identification in the Scopus database. We discuss the review findings in five sections, namely, conceptualization, theoretical framework, descriptive information, methodological trends, and key variables. Drawing from the gaps in the existing literature, we propose several suggestions for future research and end the paper with concluding remarks.
AtıfWoS1OpenAlex1TR Dizin2İncele - MakaleAçık Erişim2022SOME INTEGRAL CHARACTERIZATIONS OF TIMELIKE HELICES IN R42
Erpehlivan, Zeliha; Kocayigit, Hüseyin; Aydin, Tuba Agirman
In this study, we examine timelike helices in R-2(4) and some integral characterizations of these curves in terms of Frenet frame. In addition, we study timelike 2B slant helices in R-2(4) and present the differential equations for vector positions.
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Aydin, Tuba Agirman; Ayazoglu, Rabil; Kocayigit, Huseyin
In this paper, we define timelike curves in R-2(4) and characterize such curves in terms of Frenet frame. Also, we examine the timelike helices of R-2(4), taking into account their curvatures. In addition, we study timelike slant helices, timelike B-1-slant helices, timelike B-2-slant helices in four dimensional semi-Euclidean space, R-2(4). And then we obtain an approximate solution for the timelike B-1 slant helix with Taylor matrix collocation method.
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