Caucasian Journal of Science最新文献_第3页

Adsorptive Desulfurization of Crude Oil with Expanded Perlite 膨胀珍珠岩对原油吸附脱硫的研究

Caucasian Journal of Science Pub Date : 2022-12-26 DOI: 10.48138/cjo.1206761

A. Özkan, V. Özkan

{"title":"Adsorptive Desulfurization of Crude Oil with Expanded Perlite","authors":"A. Özkan, V. Özkan","doi":"10.48138/cjo.1206761","DOIUrl":"https://doi.org/10.48138/cjo.1206761","url":null,"abstract":"Crude oil; is a fossil energy source that has become possible to be used by refining processes and has a critical importance for the welfare, economic development, and quality of life of the society. As a result of the use of fossil fuels, carbon dioxide (CO2), sulfur oxide (SOx), and other greenhouse gases are released and these gases are expressed as the main cause of global climate change. For this reason, scientists are making an intense effort to minimize the harmful effects of SOx gases released as a result of combustion reactions in crude oil. \u0000In this presented study; the sulfur content of crude oil has been tried to be reduced by an adsorptive desulfurization technique by using expanded perlite, which is a volcanic rock type and expands as a result of heating and takes on a porous structure. For this purpose, 50 mL samples of crude oil were treated separately with 2, 4, 6, 8, and 10 g of expanded perlite and then exposed to an adsorptive desulfurization process by mixing with a magnetic stirrer at 400 rpm for an hour at room temperature. Then, it was separated from the adsorbent with the help of a centrifuge and the amount of sulfur was determined by the LECO 628S device according to ASTM D 1552-03 method. \u0000As a result of the study, it was determined that the amount of sulfur in crude oil decreased by 10.82 %. The study's findings showed that the expanded crude perlite had a good capacity for sulfide loading, was renewably good, and had a stable structure for removing sulfur compounds.","PeriodicalId":9662,"journal":{"name":"Caucasian Journal of Science","volume":"51 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83205598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Relation Between Symptoms of Premenstrual Term of Nurses Who Work in Kars and Predisposition to Somatization 卡尔斯护士经前期症状与躯体化倾向的关系

Caucasian Journal of Science Pub Date : 2022-12-25 DOI: 10.48138/cjo.1072432

Ayşe Gül Geli̇r, S. Eliş Yıldız

{"title":"The Relation Between Symptoms of Premenstrual Term of Nurses Who Work in Kars and Predisposition to Somatization","authors":"Ayşe Gül Geli̇r, S. Eliş Yıldız","doi":"10.48138/cjo.1072432","DOIUrl":"https://doi.org/10.48138/cjo.1072432","url":null,"abstract":"This research is conducted to determine the relation between symptoms of premenstrual term of nurses who work in Kars and predisposition to somatization. This is a cross-sectional research. The population of this research are consisted of 108 nurses who work in Kars Kafkas University Training and Research Hospital in the process of the study. Any sample from population is not selected however 87 nurses who are proper for study criterias and present at the time of research participated voluntarily. During data collection Survey, premenstrual syndrome scale and somatization scale are used by researcher. Descriptive statistics (average, standard deviation, minimum, maximum), frequencies for categorical variables (score, percentage), t test, Mann Whitney U, Pearson Corelation, Kruskal-Wallis test are used while data evaluation. The level of Premenstrual Syndrom of the participants 124,80±42,969. Somatization level is 14,49±5,471. It is found 49% positive way relation between Somatization and Premenstrual Syndrom as a result of corelation analysis applied. As a result of research it is determined that there is a signicifant relation between Premenstrual Syndrom and Somatization. It is detected that women who has Premenstrual Syndrom are negatively affected in daily and working life.","PeriodicalId":9662,"journal":{"name":"Caucasian Journal of Science","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80489706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Determination of Intermolecular Interactions of Nicotinamide Liganded Complexes of Co(II), Cu(II), Ni(II) and Zn(II) 4-Formilbenzoates by Hirshfeld Surface Analysis and Investigation of Interaction Energies. 用Hirshfeld表面分析法测定Co(II)、Cu(II)、Ni(II)和Zn(II) 4-甲酰基苯甲酸酯烟酰胺配体的分子间相互作用及相互作用能

Caucasian Journal of Science Pub Date : 2022-12-22 DOI: 10.48138/cjo.1205712

Mustafa Sertçelik

{"title":"Determination of Intermolecular Interactions of Nicotinamide Liganded Complexes of Co(II), Cu(II), Ni(II) and Zn(II) 4-Formilbenzoates by Hirshfeld Surface Analysis and Investigation of Interaction Energies.","authors":"Mustafa Sertçelik","doi":"10.48138/cjo.1205712","DOIUrl":"https://doi.org/10.48138/cjo.1205712","url":null,"abstract":"CrystalExplorer program is a program that has been used frequently in the field of theoretical chemistry in recent years and its popularity has increased. First of all, Hirshfeld surface analysis of molecules can be done in this program. Thanks to Hirshfeld surface analysis, intermolecular interactions and their contributions to the crystal surface can be determined. In this study, Hirshfeld surface analyzes and energy frameworks of nicotinamide complexes of Co(II), Cu(II), Ni(II) and Zn(II) 4-formylbenzoate were investigated. Dnorm index, shape index, curvature index and 2D fingerprint graphs were examined for all complexes. In addition, the intermolecular interaction energies of the complexes were calculated using the CE-B3LYP/6-31G (d,p) and CEHF/3-21G energy models. As a result of all these, it was seen that the most important interaction in the four isostructured complexes was H...H interactions. \u0000According to Hirshfeld surface analysis and energy frameworks, O-H...O and N-H...O hydrogen bonds and π•••π stacking and C−H••π interaction energies are seen as the most important interaction types in the crystal structure.","PeriodicalId":9662,"journal":{"name":"Caucasian Journal of Science","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77412935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Determination of HNP and pKa Values of Some 3-Alkyl(Aryl)-4-phthalimido-4,5-dihydro-1H-1,2,4-triazol-5-one Compounds by Semi-Neutralization Method 半中和法测定部分3-烷基(芳基)-4-邻苯二胺-4,5-二氢- 1h -1,2,4-三唑-5-酮化合物的HNP和pKa值

Caucasian Journal of Science Pub Date : 2022-12-21 DOI: 10.48138/cjo.1200631

H. Yüksek, S. Manap, G. Özdemir

引用次数: 0

Ebelik Öğrencilerinin Adli Vaka ve Adli Ebelik Konusunda Bilgi ve Görüşlerinin Değerlendirilmesi: Tanımlayıcı Çalışma

Caucasian Journal of Science Pub Date : 2022-09-26 DOI: 10.48138/cjo.1084609

Sibel Öztürk, Safiye AĞAPINAR ŞAHİN

{"title":"Ebelik Öğrencilerinin Adli Vaka ve Adli Ebelik Konusunda Bilgi ve Görüşlerinin Değerlendirilmesi: Tanımlayıcı Çalışma","authors":"Sibel Öztürk, Safiye AĞAPINAR ŞAHİN","doi":"10.48138/cjo.1084609","DOIUrl":"https://doi.org/10.48138/cjo.1084609","url":null,"abstract":"Bu araştırma, ebelik öğrencilerinin adli vakalara yaklaşımı ile adli ebelik hakkındaki bilgi ve görüşlerinin belirlenmesi amacıyla yapılmıştır. Bu araştırma Atatürk Üniversitenin Sağlık Bilimleri Fakültesi ebelik bölümü 3. ve 4. sınıf öğrencileri ile tanımlayıcı-karşılaştırmalı olarak yapılmıştır. Araştırmada örnekleme yöntemine gidilmemiş, evrenin tamamına ulaşılmaya çalışılarak toplam 173 öğrenci ile yürütülmüştür. Araştırmada öğrencilere 18 yaş altı genital muayene yapma teklifi ile karşılaştığında 3. Sınıf öğrencilerin %31.2’si yapmayacağını, %18.2’si bu durum karşısında ne yapacağını bilmediğini, %4.3 yapacağını, %10.8’i de kişinin onayının olup olmadığını soracağını belirtmiştir. 4.sınıf öğrencilerin bu durum karşısındaki tutumunu incelediğimizde ise öğrencilerin %21.3’ünün yapmayacağını, %16.3’ü bilmediğini belirtmiştir. Ebelik 3. sınıf öğrencilerinin adli ebelik alanında çalışmak isteme durumu sorulduğunda %58.1’i bu alanda çalışmak istediğini belirtmiştir. Çalışmak isteme nedeni olarak öğrencilerin %54.5’i bu alanın ilgisini çektiğini belirtmiş. 4. Sınıf öğrencilere baktığımızda ise öğrencilerin %45 bu alanda çalışmak istediğini ve çalışmak isteyen öğrenciler arasında %47.4’ü de bu alanın ilgisini çektiğini belirtmiştir. Ebelik öğrencilerin adli vaka ve bu vakalar ile karşılaştıklarında nasıl davranacaklarını bilmedikleri belirlenmiştir.","PeriodicalId":9662,"journal":{"name":"Caucasian Journal of Science","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74020419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biological properties of a newly isolated bacteriophage (NL1) that infects Escherichia coli O157:H7 strain 感染大肠杆菌O157:H7菌株的新分离噬菌体(NL1)的生物学特性

Caucasian Journal of Science Pub Date : 2022-06-30 DOI: 10.48138/cjo.1112953

N. Mutlu, E. Koç, Ö. Özden

{"title":"Biological properties of a newly isolated bacteriophage (NL1) that infects Escherichia coli O157:H7 strain","authors":"N. Mutlu, E. Koç, Ö. Özden","doi":"10.48138/cjo.1112953","DOIUrl":"https://doi.org/10.48138/cjo.1112953","url":null,"abstract":"Escherichia coli O157: H7 strain was used as the standard strain for bacteriophages isolated from polluted environmental foci and animal waste-contaminated waters, and some of the enteroinvasive Escherichia coli strains previously isolated from sporadic cases were used to determine the host diversity of phages. The physiological properties of bacteriophages specific to Escherichia coli O157:H7, designated Escherichiaphage NL1, were studied. After the isolation step, bacteriophages were purified and their titer was increased. Cross-antigenic properties of the hosts were investigated with Escherichia phage NL1 phage. One-step growth curve parameters such as adsorption time of phages, latent period, burst size, multiplicity of infection value (MOI) were determined. Results showed that bacteriophage NL1 completely lysed the E.coli O157:H7 (RSKK 09007) and E.coli O:164 RSKK 324. In the study, the effects of phage NL1 only on E.coli O157:H7 were investigated. The calculated highest titer was determined as Optimal multiplycity of infection (2.16x108). It was determined that the latent period lasted for 20 minutes and the phage was reached the burst size at approximately 90 minutes.","PeriodicalId":9662,"journal":{"name":"Caucasian Journal of Science","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76610848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of Graft Harvesting Operations from Anterior and Posterior Iliac Donor Sites by Finite Element Analysis 用有限元分析评价髂前后供区移植手术

Caucasian Journal of Science Pub Date : 2022-06-21 DOI: 10.48138/cjo.1003613

A. T. Şensoy, I. H. Korkmaz, Fatih Medetalibeyoglu, I. Kaymaz

{"title":"Evaluation of Graft Harvesting Operations from Anterior and Posterior Iliac Donor Sites by Finite Element Analysis","authors":"A. T. Şensoy, I. H. Korkmaz, Fatih Medetalibeyoglu, I. Kaymaz","doi":"10.48138/cjo.1003613","DOIUrl":"https://doi.org/10.48138/cjo.1003613","url":null,"abstract":"When the graft donor areas are evaluated in terms of bone reserve and functional aspects, it can be said that the iliac site has outstanding properties. However, complications of graft harvesting operations performed from various iliac donor sites have been reported by many researchers. Numerous studies have been carried out in the literature to reduce these complications, and to increase the success of the operation. However, biomechanical comparison of anterior and posterior iliac graft harvesting operations is one of the gaps in the literature. This study aims to assess both biomechanical behavior and bone graft reserve comparison of the two surgical operation alternatives. According to the FEA results of the study, posterior iliac graft harvesting provides 264% more trabecular bone reserve than anterior operation. However, this rate is 132% for cortical bone. When the models are compared, anterior osteotomy model has a 8.6% higher von Mises strain compared to the posterior osteotomy model. Results of the present study has shown that the region with the highest stress value in the cortical bone is the sacroiliac joint for both models. While posterior graft harvesting operation offers advantages in terms of morbidity rate, joint fracture risk and graft reserve, anterior operation can be preferred in terms of operational ease and the sacroiliac joint stability. However, since results obtained may be affected by the factors such as the amount of graft harvested, the patient's bone quality, anatomical differences, age and gender, it has been evaluated that the success of the operation may be enhanced by carrying out a patient-specific approach for modeling and analysis steps.","PeriodicalId":9662,"journal":{"name":"Caucasian Journal of Science","volume":"1105 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76750770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation the Effect of Boric Acid effect on Antioxidant System, HDL Levels and PON Activity on Rats Feding to the High-Fat Diet 硼酸对高脂日粮大鼠抗氧化系统、高密度脂蛋白水平及PON活性的影响

Caucasian Journal of Science Pub Date : 2022-06-21 DOI: 10.48138/cjo.994111

Destan Kalacay, O. Atakisi

{"title":"Investigation the Effect of Boric Acid effect on Antioxidant System, HDL Levels and PON Activity on Rats Feding to the High-Fat Diet","authors":"Destan Kalacay, O. Atakisi","doi":"10.48138/cjo.994111","DOIUrl":"https://doi.org/10.48138/cjo.994111","url":null,"abstract":"Recent studies have revealed that boron compounds can be effective in the treatment of obesity, which is known to be one of the most dangerous and complex health problems of this age. In this study, the therapeutic effect of boron molecules in the diet on obesity was investigated. \u0000For this purpose, the effects of boron compounds on Total Antioxidant Status (TAS), Total Oxidant Status (TOS), High Density Lipoprotein (HDL) levels and paraoxanase (PON) activity were investigated in mice fed a high-fat diet. \u0000The study material was 40 Sprague Dawley rats 4-5 months old with a mean live weight of 226.95 ± 5.75 g. Animals were divided into 4 groups as Group I (normal diet), Group II (High fat), Group III (High fat + Boric Acid) and Group IV (Boric Acid). Six weeks after the experiment, blood samples were taken from the animals and TAS, TOS, HDL levels and PON activity were measured from the samples. In addition, the live weight changes of the animals were recorded. \u0000At the end of the study, we found that boric acid given in addition to drinking water did not significantly change TAS level and PON activity, but increased TOS and HDL levels. In addition, the weight average of the group treated with boric acid decreased. \u0000As a result, boric acid did not have an effect on the antioxidant system, but it caused an increase in HDL level and a decrease in PON activity. In addition, boric acid can be effective in lowering body weight.","PeriodicalId":9662,"journal":{"name":"Caucasian Journal of Science","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88673400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Investigation of the effects of sodium phenylpyruvate on pulmonary adenocarcinoma (A549) and mammary adenocarcinoma (MDA-MB-231) on cell lines 苯丙酮酸钠对肺腺癌(A549)和乳腺腺癌(MDA-MB-231)细胞系影响的研究

Caucasian Journal of Science Pub Date : 2022-06-03 DOI: 10.48138/cjo.979147

A. Doğan, A. Doğan

{"title":"Investigation of the effects of sodium phenylpyruvate on pulmonary adenocarcinoma (A549) and mammary adenocarcinoma (MDA-MB-231) on cell lines","authors":"A. Doğan, A. Doğan","doi":"10.48138/cjo.979147","DOIUrl":"https://doi.org/10.48138/cjo.979147","url":null,"abstract":"Kanser tedavisinde son yıllarda başarı oranını artıran ilaç ve yöntemler geliştirilmiştir. Ancak toksisitesi düşük ve yüksek derecede etkili bir ilaç üretilememiştir. Bu araştırma akciğer (A549) ve meme kanseri (MDA-MB-231) hücre hatlarında sodyum fenilpirüvatın antitümöral etkilerinin belirlenmesi amacıyla yapılmıştır. Araştırmada distile suyla sodyum fenilpirüvatın değişik yoğunluklarda çözeltileri hazırlandı. Bu çözeltilerden içerisinde 1x103 adet kanser hücresi bulunan mikropleyt kuyucuklarına sırasıyla kontrol, 0.0375 mM, 0.075 mM, 0.15 mM, 0.3 mM, 0.6 mM, 1.2 mM ve 2.4 mM’lik konsantrasyonlarından 100 mikrolitre hacimlerde ilave edildi. Aynı doz sağlıklı hücrelere de uygulandı. Her kuyucuğa 24, 48 ve 72. saatlerde CVDK-8 Cell Viability Test kitinden (Eco-Tech) 10’ar µL eklendi ve 1 saat sonra mikropleytlerin 450 nm dalga boyunda verdikleri absorbansları spektrofotometrede ölçülerek hücrelerin yoğunlukları belirlendi. Kontrol ve deney gruplarından elde edilen sonuçlar istatistiki yönden değerlendirildi. Deney gruplarda kontrole göre kanser hücre sayılarının azaldığı, hücre katlanma sayılarının ise arttığı tespit edildi. Kontrole göre en fazla azalma Akciğer Karsinom hücre hattında 2,4 mM dozda 24. saatte, Meme Adenokarsinom hücre hattında 2,4 mM dozda 72. saatte ve Human Umbilical Vein Endothelial Cells (HUVEC) hattında 1,2 mM dozda 48. saatte olduğu tespit edildi. Sodyum fenilpirüvatın akciğer ve meme kanseri hücreleri üzerine in vitro şartlarda antitümöral etki gösterdiği sonucuna varıldı.","PeriodicalId":9662,"journal":{"name":"Caucasian Journal of Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87601051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fen Bilimleri Dersi 5. Sınıf “Işığın Yayılması” Ünitesine Yönelik Başarı Testi Geliştirme Çalışması

Caucasian Journal of Science Pub Date : 2021-12-30 DOI: 10.48138/cjo.644364

Serkan Sevim, I. Uysal, Emine Demi̇rci̇

引用次数: 1