94 results on '"Ufuk Kaya"'
Search Results
2. Assessing the Relationship between proAKAP4 Level and Longevity of Sexed Sperm Quality after Thawing
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İlktan Bastan, Fırat Korkmaz, Derya Şahin, Seher Şimşek, and Ufuk Kaya
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advanced sperm analysis techniques ,sperm viability ,precursor A-kinase anchor protein 4 biomarker ,CASA ,flow cytometer ,proteomics ,Veterinary medicine ,SF600-1100 - Abstract
ProAKAP4 is a sperm structural protein that regulates motility through the PKA-dependent cAMP signaling pathway, which is synthesized as an X chromosome-linked member of the gene family. This study aims to determine the optimal level of proAKAP4 for evaluating sexed semen through investigating its relationship with the longevity of sperm quality in sexed Holstein bull sperm. A total of 30 sexed sperm samples (bearing X chromosomes) from 30 distinct Holstein bulls (n = 30) were analyzed. The frozen bull sperm samples were assessed for their proAKAP4 levels, mitochondrial membrane potential, plasma membrane and acrosome integrity (PMAI), and spermatozoa movement parameters at hours 0 and 3 after thawing. The proAKAP4 levels in the sexed sperm samples ranged from 16.35 to 72.10 ng/10 M spz, with an average of 37.18 ± 15.1 ng/10 M spz. A strong positive correlation was observed between proAKAP4 levels and total motility, progressive motility, PMAI, high mitochondrial membrane potential, VAP, and VCL values after 3 h of incubation, when compared to post-thaw analyses. The results also reveal that spermatozoa with proAKAP4 levels of ≥40 ng/10 M spz exhibit higher quality. In conclusion, the level of proAKAP4 in sexed sperm aligns with previous studies and shows potential as a biomarker for assessing the longevity of sexed sperm quality.
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- 2024
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3. Serum pregnancy–associated glycoprotein profiles during early gestation in Karya and Konya Merino sheep
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Mehmet Akköse, Elif Merve Çınar, Murat Onur Yazlık, Ufuk Kaya, Yadigar Polat, Çiğdem Çebi, Ceyhan Özbeyaz, and Mehmet Rıfat Vural
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ewe ,gestation ,management ,pregnancy diagnosis ,serum ,Veterinary medicine ,SF600-1100 - Abstract
Abstract Background Reported as being expressed by mono‐ and binucleate placental cells, pregnancy‐associated glycoproteins (PAGs) are released into the blood circulation from the ruminant placenta. Circulating gestational PAGs levels may differ between sheep breeds. Objective This study was aimed at the close monitoring of the serum PAGs profiles of Karya and Konya Merino sheep during early pregnancy. Methods Fifteen Karya and 15 Konya Merino ewes were synchronized by a 12‐day treatment with progesterone‐impregnated intravaginal sponges. After the sponges were withdrawn, the ewes were administered 400 IU of equine chorionic gonadotropin. The ewes were allowed to mate naturally, and all animals were sampled for blood as of the day of mating (day 0) at weeks 1, 2, 3, 4 and 5. Pregnancy diagnoses were made by transabdominal ultrasonography at week 5. At weeks 6, 7, 8, 9 and 11, blood samples were collected only from the pregnant ewes. The blood samples were centrifuged at 3000 × g, and extracted sera were stored at −20°C until being used for laboratory analyses. Serum PAGs levels were determined with the aid of a commercial PAG‐enzyme‐linked immunosorbent assay test originally developed for pregnancy diagnosis in cattle. Differences in the between the PAGs levels throughout pregnancy and the group effect (Karya and Konya Merino) were determined with a two‐way mixed analysis of variance. Pairwise comparisons were made using a Bonferroni adjustment. Results PAGs levels showed a linear increase with the advance of pregnancy in both Karya and Konya Merino sheep. No difference was detected between the breeds for serum PAGs levels. The serum PAGs levels of the pregnant and non‐pregnant ewes differed as of the fourth week. Conclusion The serum PAGs levels of the Karya and Konya Merino ewes were similar during the first 11 weeks of gestation, and pregnancy diagnosis could be made based on serum PAGs levels as of the 4th week in both breeds.
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- 2024
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4. Diagnostic accuracy of milk components for pregnancy diagnosis in mid and late lactation cows
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Ufuk Kaya, Murat Onur Yazlık, Hüseyin Özkan, Baran Çamdeviren, Güven Güngör, Sevda Dalkıran, Hasan Hüseyin Keçeli, İrem Karaaslan, Akın Yakan, and Aytaç Akçay
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AUC ,Holstein cows ,lactation ,milk components ,ROC analysis ,Dairying ,SF221-250 - Abstract
The aims of this study were to establish a cut-off point by evaluating the usability of the somatic cell count (SCC) and milk components (fat, fat-free dry matter (FFDM), protein, lactose, freezing point, electrical conductivity and pH) to observe the pregnancy status, and to determine the practical usage of these parameters as diagnostic biomarker of pregnancy status. In the present study, primiparous Holstein cows (n=133) were included in the mid and late lactation. Milk samples were collected in sterile tubes for SCC and milk components analysis. In each lactation period, SCC, milk yield and milk component parameters were analysed by Student's t test according to pregnancy status. Receiver operating characteristic curves were used to determine the predictive threshold using SCC and milk component parameters to discriminate between pregnant and non-pregnant cows. SCC levels were similar for all cows in the mid and late-lactation. In the mid lactation, FFDM, protein, lactose and electrical conductivity were higher and milk yield, fat, freezing point and pH were lower in pregnant cows (p
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- 2023
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5. The Relationship Between Time Management Skills and Academic Achievements of Nursing Students During the COVID-19 Pandemic
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Emine Temizkan Sekizler, Kerem Yıldız, Nur Demet Gök, İncihan Kahraman, Bahar Ak Öskıran, and Ufuk Kaya
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academic achievement ,covid-19 pandemic ,nursing students ,time management ,Nursing ,RT1-120 - Abstract
Objective:This study aims to determine the relationship between the time management skills of nursing students and their academic achievements during the COVID-19 pandemic.Method:The population of this descriptive study consisted of private University Health Sciences Faculty Nursing Department 2021–2022 Academic Year Fall Semester second year (n = 106), third year (n = 72), and fourth year (n = 88) students (n = 266). No sample selection was made in the study and the data were obtained from 182 students. The data of the study were collected online using the Participant Introduction Form and Time Management Questionnaire. Data analysis was performed using Statistical Package for Social Sciences 18.0 package software.Results:The mean score of the students on the time management inventory was found to be 90.93 ± 11.67. A statistically significant difference was found between the overall Time Management Questionnaire mean score and the variables of “presence of time-wasting factor during the distance education period” (p = .16) and “duration of social media use” (p = .13, p < .05). A statistical significance was found between the mean scores of the time attitudes subdimension and “presence of time-wasting factor during the distance education period” (p = .001) and “the duration of social media use” (p = .010, p < .05).Conclusion:The students’ time management skills were determined to be at a “high” level, the factors that caused time loss during the distance education period and the duration of social media use affected the time management skills, and the time management skills did not affect academic success.
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- 2022
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6. Determination of Health Literacy Levels of Senior Nursing Students’ Parents of a University
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Ufuk Kaya, Dilay Necipoğlu, Nazlı Turgut, and Hatice Bebiş
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health literacy ,level ,nursing ,parent ,student ,Nursing ,RT1-120 - Abstract
Objective:This study aimed to determine the health literacy levels of nursing senior students’ parents and the factors affecting these levels.Methods:The universe of this study, which was performed in a cross-sectional and descriptive type, was the parents of the senior students of the nursing department of a private university (n = 156). The data were collected with Turkey Health Literacy Scale-32 by students who made face to face interviews with their parents. The data of the research were collected from April to May 2019.Results:Scale’s total scores of the parents were determined to be 29.90 ± 3.93. A statistically significant difference was found between the parents’ scale scores and average age, income-expenditure status, and educational status (p < .05).Conclusion:According to the scale’s total score, parents are at the level of “problem-limited” health literacy. For this, level determinations should be made, consultancy services should be provided, awareness raising training should be provided, public should be encouraged, and such research should be done more.
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- 2022
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7. Evaluation of relationships between dogs and owners: the turkish translation, reliability and validity study of cat/dog owner relationship scale (c/dors)
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Ufuk Kaya, Dogukan Ozen, Murat Onur Yazlik, Selim Kosem, and İsmayil Safa Gurcan
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dog ,factor analysis ,owner ,relationship scale ,validity-reliability ,Veterinary medicine ,SF600-1100 - Abstract
Aim: The aim of this study was to translate the cat/dog owner relationship scale (C/DORS), which can be used to assess the quality of relationships between dogs and their owners, into Turkish and to evaluate relationship quality across different demographic variables in Turkey. Materials and Methods: An expert team translated the cat/dog owner relationship scale (C/DORS) from its original language of English into Turkish. Information was collected from dog owners who volunteered to participate in the study via a scale. The dog owners' gender, educational status, and financial level were also collected. The validity and reliability of the scale were assessed using Cronbach's alpha and factor analysis. Results: The initial statistical analyses revealed that factor analysis could be used on the scale (Bartlett?s sphericity test, p0,05) and income statue (p>0,05). Perceived cost subscale score was statistically significant in terms of educational status (p Conclusion: It is thought that this scale, that has been adapted into Turkish and whose validity-reliability has been determined, is the first scale that can measure dog-owner relationships in Turkey. In addition, this study will encourage the examination of pet-human relationships in Turkey through with scale development and adaptation studies.
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- 2022
8. Effects of oxidative stress-related major molecular parameters on milk composition in weaning period of damascus goats
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Hüseyin ÖZKAN, Sevda DALKIRAN, İrem KARAASLAN, Ufuk KAYA, Baran ÇAMDEVİREN, Murat YÜKSEL, and Akın YAKAN
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cox-2 ,damascus goat ,gene expression ,nfe2l2 ,weaning in goats ,Veterinary medicine ,SF600-1100 - Abstract
Th e weaning process in goat breeding is applied in various methods depending on the breeding administration. In this study, blood and milk samples have been collected from Damascus goats at the weaning day (postpartum 105th day-weaned day) and a week later (post-weaned day). In addition to determining cortisol and MDA in plasma, COX-2 and NFE2L2 activities have been investigated both mRNA and protein levels from leucocytes and plasma. Compositional parameters of milk have also been analyzed and the possible relations between studied parameters have been investigated. While expression levels of COX-2 and SCC of milk decreased, pH of milk was increased in post-weaned day samples. Th e MDA, FFDM, protein, lactose and freezing point were decreased in the post-weaned day. Milk fat was negatively correlated with NFE2L2, and milk protein had positively correlated with SCC and FFDM. On the other hand, lactose was positively correlated with FFDM and protein. In addition, most of the compositional parameters positively correlated with a freezing point; they were negatively correlated with electrical conductivity. According to the results obtained from the study, it is thought that the decrease in milk fat in goats may be an indicator of increased oxidative stress in lactating goats due to the increase in NFE2L2 protein, which has a central role in the antioxidant response.
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- 2022
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9. Computer-aided three dimensional morphometric measurements of cervical vertebrae variations compared with manual measurements in throughbred horses
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Caner Bakıcı, Barış Batur, Remzi Orkun Akgün, Ufuk Kaya, Okan Ekim, Çağdaş Oto, and Reşide Merih Hazıroğlu
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anatomical variation ,computed tomography ,horse ,3d anatomy ,3d measurement ,Veterinary medicine ,SF600-1100 - Abstract
Aim: The aim of this study was to create three-dimensional (3D) models of each cervical vertebra with computed tomography (CT) images; to determine the morphometric parameters of each cervical vertebra with manual and digital measurement methods; to compare the accuracy between the two methods. Materials and Methods: The last five cervical vertebrae of four male thoroughbred horses were used for morphometric analyses. All vertebrae were scanned with 256-multidetector CT device. 3D reconstructed models were acquired with 3D slicer software. Twenty-three morphometric parameters were calculated on 3D models and manually by using a digital caliper. Results: Measurement methods*Cervical vertebra interaction term was found statistically significant for height of vertebra, external and internal width of the cranial articular process, width of the vertebral fossa, height of transverse foramen, height of cranial and caudal vertebral notch, and width of the pedicle (p Conclusion: These morphometric data cannot only contribute to anatomic investigations but also provide database for surgical and orthopaedic researches or clinical interventions on this region of equine species.
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- 2022
10. Evaluation of hepatokines, proinflammatory cytokines, oxidative stress and energy related metabolism analytes and hematological parameters in dairy cows with placental retention
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Efe Kurtdede, Erdal Kara, Taha Burak Elifoğlu, and Ufuk Kaya
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hepatokines ,oxidative stress ,placental retention ,cytokines ,dairy cows ,Veterinary medicine ,SF600-1100 - Abstract
Aim: To investigate the serum levels of angiopoietin-like protein 4 (ANGPTL4), fibroblast growth factor 21 (FGF21), interleukin 1 beta (IL-1Β), IL-6, superoxide dismutase (SOD), malondialdehyde (MDA), and energy-related metabolism analytes and hematological parameters in cows with placental retention (PR). Materials and Methods: In the presented study, blood samples were taken from the coccygeal veins of 10 cows with PR and 10 healthy control cows. All of the samples were analyzed to determine the serum glucose, unesterified fatty acid (NEFA), triglyceride, high-density lipoprotein (HDL), total protein, albumin, aspartate aminotransaminase (AST), SOD, and MDA levels. Blood serum hepatokines, ANGPTL4, FGF21 levels, proinflammatory cytokine response parameters, IL-1 beta, and IL-6 levels were evaluated. Results: As a result, the increase in serum AST (p < 0.05) indicated altered liver function. During negative energy balance, the serum NEFA levels (p < 0.05) increased, and serum HDL levels (p < 0.05) decreased as indicators of an increased risk of metabolic pathology. Increases in the serum ANGPTL4, FGF21, CRP, and SOD (p < 0.001) and IL-6, MDA, creatine kinase levels (p < 0.05) were evaluated as indicators of the development of effective metabolic, inflammatory, and oxidative stress. The monocyte count was significantly lower (p < 0.05) in the cows with PR. Conclusion: It was concluded that significant increases in the serum ANGPTL4 and FGF2 levels were associated with energy balance, effective cytokine responses, and oxidative stress in dairy cows with PR.
- Published
- 2021
11. Nursing History of Turkish Cypriots
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Ufuk Kaya and Kerem Yıldız
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cyprus ,history of nursing ,turkish cypriot ,Nursing ,RT1-120 - Abstract
In terms of the historical development of nursing and education for Turkish Cypriots, articles in the literature are quite limited. The Cypriots initially stayed away from the nursing profession. In this period, the profession was carried out by nurses (sisters) who came to Cyprus from England. However, in time, the Cypriots also started to adopt the nursing profession. The first breakthrough in the field of nursing was the British government’s sending a Turkish Cypriot (Türkan Aziz) and two Greek women to a nursing school in Beirut for a three-year education in 1935. After these years, the nursing profession and education were adversely affected after the attacks that started in 1963 but did not stop. Vocational School of Nursing was established in 1994 and has trained nurses for many years. Following this, nursing undergraduate, master and doctoral education have been started to be given in many universities in Northern Cyprus.
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- 2021
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12. Innovation and Surgical Care in Nursing
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Kerem Yıldız, Ufuk Kaya, and Ümran Dal Yılmaz
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innovation ,nursing care ,surgical innovation ,technology ,Nursing ,RT1-120 - Abstract
Innovation makes contributions to the patient care process, work order, and the speedup of development. Innovative products consist of technological tools for preventing illnesses, reducing the time of hospitalization, increasing patient comfort, and making the care professional. Florence Nightingale emphasized the need for using innovative products saying “We should change life instead of complying with it” and gave place to important transformations in health. While determining the technology they will use in the care of surgical patients, nurses should actualize the care practices paying attention to these practices being applicable, employable, and creditable and their legal and ethical aspects. Innovative technology is used in many areas of surgery, and this fact propounds the importance of innovation in surgical care. Studies in which innovative practices are applied in nursing are insufficient in our country. For this reason, it is thought that innovative practices in nursing need to be developed. In this review, it is aimed to draw attention to the necessity and importance of innovation in nursing.
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- 2021
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13. Determination of Graduation Stage Students’ Opinions About Their Colleagues and Professional Expectations: Example of Paramedic Department
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Ufuk KAYA, Meryem GUVENIR, Tugce BALCI OKCANOGLU, and Asli AYKAC
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expectation ,opinion ,profession ,student ,paramedic ,Nursing ,RT1-120 - Abstract
Aim: The aim of this study is to determine of paramedic students’ opinions about their colleagues and professional expectations. Method: The universe of this study consists of students who have the right to graduate in the 2018-19 and 2019-20 academic years. The data were collected with a data collection form consisting of three parts, prepared by the researchers in line with the literature. The first part of the form consists of 7 questions about the demographic characteristics of the students. The second part consists of 11 statements in which students express their opinions about their colleagues as "good, moderate and bad". The evaluation in the department was made with a triple Likert scale in the directions of bad (0), moderate (1) and good (2). In the third part, there were 17 expressions (triple Likert scale) containing the options' I agree, undecided and disagree 'to determine students' professional expectations. The data were analyzed in the Statistical Package for Social Sciences program at 95% confidence interval, significance as p
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- 2021
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14. Sacroiliac luxations in cats: Surgery or conservative treatment?
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Ziya Yurtal, Muhammed Enes Altuğ, Cafer Tayer İşler, Mehmet Zeki Yılmaz Deveci, İbrahim Alakuş, Ömer Kırgız, Halil Alakuş, and Ufuk Kaya
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Cat ,sacroiliac luxation ,surgical treatment ,conservative treatment ,Cattle ,SF191-275 ,Veterinary medicine ,SF600-1100 - Abstract
Sacroiliac luxations constitute an important part of hip fractures. In the treatment phase, a choice should be made between surgical and conservative treatment. Which treatment option will yield more effective results depends on many variable factors. In the present study, some of these factors were mentioned and their effects on treatment and outcomes were evaluated. A total of 61 cats, 26 female and 35 male, of various breeds and ages, were included in the study. The mean age of the cats included in the study was 16 months. The mean weight of the cats was 2.87 kg. Cases were categorized as ages, ≤6, 7-12, and ≥13 months of age. In addition, the success criteria of etiological causes, luxation type, and concomitant traumas on decision and outcomes were evaluated. Conservative treatment was preferred more in all age groups and success rates were higher than those of surgery. Conservative treatment was preferred in both genders, and the recovery rate was higher in males than that in females. Regardless of the cause of the trauma, more conservative treatment was preferred, and the rate of good recovery was higher in high-rise falls. Even if there was traumatic injury in addition to sacroiliac luxation, conservative treatment was preferred and the rate of good recovery was higher in cases without concomitant traumatic injury. As a result; age, gender, luxation type and concomitant traumatic injury were not statistically significant on treatment choice. However, good recovery was statistically significant in cases without concomitant traumatic injury.
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- 2022
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15. Expression patterns of major genes in fatty acid synthesis, inflammation, oxidative stress pathways from colostrum to milk in Damascus goats
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Akın Yakan, Hüseyin Özkan, Baran Çamdeviren, Ufuk Kaya, İrem Karaaslan, and Sevda Dalkiran
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Medicine ,Science - Abstract
Abstract The molecular regulation of milk secretion and quality in the transition period from colostrum to milk in goats is largely unknown. In the present study, mammary gland secretion of goats was collected in 0th, 4th, 7th, 14th and 28th days after parturition. In addition to composition and fatty acid profile of colostrum or milk, FASN, SCD, ACACA, COX-2, NRF2, TLR2, NF-kB, LTF and PTX3 genes expression patterns were determined from milk somatic cells. While somatic cell count (SCC), malondialdehyde (MDA), fat, fat-free dry matter, protein and lactose were highest as expression levels of the oxidative and inflammatory genes, freezing point and electrical conductivity were lowest in colostrum. With the continuation of lactation, most of the fatty acids, n3 ratio, and odour index increased but C14:0 and C16:0 decreased. While FASN was upregulated almost threefolds in 14th day, ACACA was upregulated more than fivefolds in 7th and 14th days. Separately, the major genes in fatty acid synthesis, inflammation and oxidative stress were significantly associated with each other due to being positively correlated. MDA was positively correlated with SCC and some of the genes related inflammation and oxidative stress. Furthermore, significant negative correlations were determined between SCC and fatty acid synthesis related genes. With this study, transition period of mammary secretion was particularly clarified at the molecular levels in Damascus goats.
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- 2021
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16. Accuracy and Reliability of Measurements Obtained from 3-Dimensional Rabbit Mandible Model: A Micro-Computed Tomography Study
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Remzi Orkun Akgün, Caner Bakıcı, Okan Ekim, Ufuk Kaya, and Nuriye Özlem Küçük
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mandible ,micro computed tomography ,morphometry ,rabbit ,three-dimensional reconstruction ,Veterinary medicine ,SF600-1100 - Abstract
The aim of this study was to evaluate the mandibular morphometric measurements of male and female rabbits using three-dimensional digital model and real bone measurements. Ten (5 female, 5 male) rabbits with no bone deformities were used in the study. Three-dimensional models were produced from two-dimensional microcomputed tomography images of the rabbit’s mandible. Biometric data were obtained by using the same measuring points over both three-dimensional models and real bone samples. There was only a significant main effect of gender for the greatest length of the mandible, length from aboral border of the alveolus of third molar teeth to infradentale, length of the diastema, height of the vertical ramus (measured in projection), distance from the incisor to the oral border of mental foramen, distance from aboral border of mental foramen to caudal border of mandible, distance between retroalveolar foramen and caudal border of mandible. For these measurements, calculated data for females are significantly higher than the males (p
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- 2019
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17. Effects of vitamin B1, vitamin E and selenium on pregnancy and blood metabolites profile during non-breeding season and early prediction of pregnancy by thermographic monitoring in Merino ewes
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MURAT ONUR YAZLIK, KEMAL TUNA OLGAC, HATICE ESRA COLAKOGLU, UFUK KAYA, MERVE MENEKSE YILDIRIM, and BULENT BAS
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Ewe ,Synchronization ,Thermography ,Animal culture ,SF1-1100 - Abstract
The objective of this study was to evaluate the effects of injectable selenium, vitamin E and vitamin B1 compounds on serum metabolic profile and pregnancy rates (PR) during the non-breeding season in Merino ewes that were synchronized with progesterone and equine chorionic gonadotrophin (eCG). Thermographic monitoring of ewes on the last day of synchronization was successful in the early selection of ewes to be used in artificial insemination and its relationship with pregnancy outcomes. Cyclic and non-pregnant ewes (n=75) were randomly assigned to treatment (n=30) and control (n=45) groups. All animals were synchronized using PGF2α at day 0, progesterone impregnated intravaginal sponges for 14 days, eCG 48 h before sponge withdrawal and artificial insemination were carried out 43–45 h after sponge removal. Animals of treatment group (n=30) were administered (intramuscularly) with 1 mg sodium selenite, 60 mg vitamin E and 40 mg vitamin B1 on two occasions, at the beginning of sponge insertion and following sponge removal. Blood samples were collected at sponge insertion and removal. Perianal and perivulvar areas were considered to evaluate the thermal pattern at day 0 and 14 using a thermo camera. Overall, 90.6% of ewes exhibited estrus in response to the synchronization protocol. Ewes of treatment group showed greater PR as compared to that of control group (70.3% vs 56%). Perivulvar temperature was influenced by time only. At the time of sponge removal, perivulvar temperatures were significantly lower in pregnant ewes than in non-pregnant animals. In conclusion, injectable selenium, vitamin E and vitamin B1 compounds increased PR after synchronization protocol and thermographic evaluation that was performed on the last day of synchronization could be used for very early prediction of pregnancy.
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- 2021
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18. An examination of the relationships between live weight and body measurements in karacabey merino sheep through the path analysis approach
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Pınar AMBARCIOĞLU, Ufuk KAYA, Doğukan ÖZEN, and İsmayil Safa GÜRCAN
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path analysis ,path diagram ,karacabey merino sheep ,live weight ,Veterinary medicine ,SF600-1100 - Abstract
Direct and indirect effects of some of the body measurements on Karacabey Merino Sheep"s live weights were estimated using a path analysis in this study. When setting the path model, live weight, back length, body length, shin girth, chest depth, rump width and chest girth measurements of 249 Karacabey Merino sheep of which ages varied between 1 and 4 years were utilized. According to the two-equation causal path model, the body measurement which had the highest direct effect on live weight was chest girth, and it was also shown that chest depth and rump width had indirect effects. It was found that the model expressed a good fit according to the goodness of fit criteria. Consequently, it was revealed that the body measurement which had the greatest contribution to the model set for live weight estimation was chest girth and causal relations between the independent variables variable could be shown with the path analysis.
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- 2017
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19. YILDIRMA (MOBBİNG) VE KİŞİLİK İLİŞKİSİ: HİZMET SEKTÖRÜ ÇALIŞANLARI ÜZERİNDE BİR ARAŞTIRMA
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Umut AVCI and Ufuk KAYA
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A ve B tipi kişilik ,hizmet sektörü ,İzmir ,yıldırma ,Social Sciences ,Business ,HF5001-6182 - Abstract
Yıldırma davranışları, çalışma hayatında işgörenler arası rekabetin sertleşmesi ve insanlar arası etkileşimin düzeyinin artmasına paralel ortaya çıkmıştır. Bu davranışlar, çalışanları, örgütü ve genel anlamda toplumu etkilemekte ve birçok olumsuz sonuca neden olmaktadır. İş ortamında yıldırma davranışına maruz kalmada ve yıldırma davranışından etkilenmede birçok faktör etkili olmaktadır. Bu faktörler içinde, bireyin kişilik yapısının da yıldırma davranışının hedefi olmasında ve yıldırma davranışlarından etkilenmesinde önemli olduğu düşünülmektedir. Bu çerçevede, bu çalışmada yıldırma davranışlarının çalışanın kişilik özelliğine göre farklılık gösterip göstermediği araştırılmıştır. Bireyin kişilik yapısını tanımlamada A ve B türü kişilik ölçeği kullanılmıştır. Araştırma verileri, İzmir'de faaliyet gösteren beş yıldızlı otellerin çalışanlarından toplanmıştır. Araştırmanın sonunda, "kendini göstermeye yönelik saldırıların" ve "sosyal ilişkilere yönelik saldırıların" bireyin kişilik özelliğine (A tipi veya B tipi) göre farklılık gösterdiği belirlenmiştir.
- Published
- 2015
20. Effect of flight level to maximum power utilization for PEMFC/supercapacitor hybrid uav with switched reluctance motor thruster
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Eyyup Oksuztepe, Zehra Ural Bayrak, and Ufuk Kaya
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Fuel Technology ,Renewable Energy, Sustainability and the Environment ,Energy Engineering and Power Technology ,Condensed Matter Physics - Published
- 2023
21. Effects of clinoptilolite on heavy metal levels in milk, proinflammatory cytokine responses (IL-1β and IL-6) and oxidative stress in dairy cows
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Efe Kurtdede, Arif Kurtdede, Sibel Yasa Duru, Özkan Duru, Erdal Kara, Yaşar Aluç, and Ufuk Kaya
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General Veterinary - Abstract
The effects of clinoptilolite on milk copper (Cu), lead (Pb), zinc (Zn), cadmium (Cd) and iron (Fe) concentrations, proinflammatory cytokine responses, oxidative stress status, whole blood cell counts and liver and kidney functions were investigated in dairy cows exhibiting no signs of any kind of toxicity. Clinoptilolite was added to the feed at a dose of 200 mg kg−1 body weight in the clinoptilolite-treated group (n = 14), but was not added to the feed in the control group (n = 7). In the milk samples (n = 21) collected before the experiment, the Cu, Pb, Zn, Cd and Fe values were 0.021 ± 0.020, 0.104 ± 0.01, 3.42 ± 0.32
- Published
- 2022
22. The evaluation of SIRS status with hemato-biochemical indices in bitches affected from pyometra and the Usefulness of these indices as a potential diagnostic tool
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Murat Onur Yazlık, İpek Mutluer, Mehmet Yıldırım, Ufuk Kaya, Hatice Esra Çolakoğlu, and Mehmet Rıfat Vural
- Subjects
Inflammation ,Neutrophils ,Equine ,Anticoagulants ,Prognosis ,Monocytes ,Dogs ,Food Animals ,Pregnancy ,Pyometra ,Albumins ,Animals ,Female ,Animal Science and Zoology ,Dog Diseases ,Lymphocytes ,Small Animals ,Biomarkers ,Edetic Acid ,Retrospective Studies - Abstract
The aims of this study were to establish a cut-off point by evaluating the usability of the hemato-biochemical indices to determine the severity of inflammation caused by pyometra, and to determine the practical usage of the indices as a diagnostic biomarker in cases of pyometra. Animals that were admitted to Ankara University Veterinary Faculty Obstetrics and Gynecology Clinic were included in the present study. Dogs suffering from pyometra were allocated to two groups according to their SIRS status (SIRS, n = 12; Non-SIRS (NSIRS, n = 16)). Healthy dogs presented for routine ovariohysterectomy were used as the control (n = 13). Blood samples were collected into two tubes containing EDTA for hematological analysis and without anticoagulant for biochemical tests before the beginning of treatment. Hemato-biochemical indices, which are Neutrophil-Lymphocyte Ratio (NLR), Monocyte-Lymphocyte Ratio (MLR), Neutrophil Percentage-Albumin Ratio (NPAR), Platelet-Lymphocyte Ratio and Systemic Immune-Inflammation Index, were calculated. All data were analyzed using the MIXED procedure of the SPSS. Receiver operating characteristics curves were used to determine the dog level threshold for evaluating the SIRS status and used to determine a predicted threshold with hemato-biochemical indices for differentiation between dogs with pyometra (regardless of SIRS status) and the control. Pairwise comparisons were carried out of the area under the curve (AUC) for thresholds of SII, NLR, PLR, MLR, NPAR. White blood cells, lymphocytes, monocyte, neutrophil, ALP, NLR, MLR, and NPAR levels were greater in dogs that suffer from SIRS (P 0.05). Red blood cells and hematocrit levels were significantly higher in the control group (P 0.05). Albumin levels were higher in the control group (P 0.05). Moreover, NLR, MLR and NPAR levels were found to be significantly higher in the SIRS group (P 0.05). Besides, NLR and MLR were the best predictors for diagnosis of the SIRS with the AUC values of 0.936, and 0.966 respectively. Furthermore, NLR, MLR and SII could be a useful diagnostic tool for pyometra with the AUC values of 0.955, 0.931, 0.716. The blood indices could be used as fast, easily accessible, and inexpensive markers for the evaluation of the SIRS status in dogs with pyometra together with diagnosis.
- Published
- 2022
23. A review of conventional and new-generation aircraft starter/generators in perspective of electric drive applications
- Author
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Eyyüp Öksüztepe, Ufuk Kaya, and Hasan Kurum
- Subjects
Aerospace Engineering - Abstract
Purpose More electric aircraft (MEA) is defined as the extensive usage of electric power in aircraft. The demand for electric power in new generation aircraft rises due to environmental and economic considerations. Hence, efficient and reliable starter/generators (SGs) are trending nowadays. The conventional main engine starting system and power generation system can be replaced with an individual SG. The constraints of the SG should be investigated to handle the aviation requirements. Even though the SG is basically an electric machine, it requires a multidisciplinary study consisting of electromagnetic, thermal and mechanical works to cope with aviation demands. This study aims to review conventional and new-generation aircraft SGs from the perspective of electric drive applications. Design/methodology/approach First of all, the importance of the MEA concept has been briefly explained. Also, the historical development and the need for higher electrical power in aircraft have been indicated quantitatively. Considering aviation requirements, the candidate electrical machines for aircraft SG have been determined by the method of scoring. Those machines are compared over 14 criteria, and the most predominant of them are specified as efficiency, power density, rotor thermal tolerance, high-speed capability and machine complexity. The features of the most suitable electrical machine are pointed out with data gathered from empirical studies. Finally, the trending technologies related to efficient SG design have been explained with numeric datasets. Findings The induction motor, switched reluctance motor and permanent magnet synchronous motor (PMSM) are selected as the candidate machines for SGs. It has been seen that the PMSM is the most preferable machine type due to its efficient operation in a wide range of constant power and speed. It is computationally proven that the using amorphous magnetic alloys in SG cores increases the machine efficiency more. Also, the benefits of high voltage direct current (HVDC) use in aircraft have been explained by a comparison of different aircraft power generation standards. It is concluded that the HVDC use in aircraft decreases total cable weight and increases aircraft operation efficiency. The thermal and mechanical tolerance of the SG is also vital. It has been stated that the liquid cooling techniques are suitable for SGs. Originality/value The demand for electrical power in new generation aircraft is increasing. The SG can be used effectively and efficiently instead of conventional systems. To define requirements, constraints and suggestions, this study investigates the SGs from the perspective of electric drive applications.
- Published
- 2022
24. Fertility comparison of frozen bull semen stored in cryogenic deep freezer (−152 °C) and LN2 container
- Author
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Mehmet Borga Tırpan, Kemal Tuna Olğaç, Fırat Korkmaz, Ali Sonat, Ufuk Kaya, and Ergun Akçay
- Subjects
Food Animals ,Equine ,Animal Science and Zoology ,Small Animals - Published
- 2022
25. Reaction time as a libido indicator and its relation to pre‐freeze and post‐thaw sperm quality in bulls
- Author
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Fırat Korkmaz, İlktan Baştan, Derya Şahin, Seher Şimşek, Ufuk Kaya, and Muharrem Satılmış
- Subjects
Endocrinology ,Animal Science and Zoology ,Biotechnology - Published
- 2023
26. What Is Going on in Indoor Air Quality of a University Hospital in Northern Cyprus?
- Author
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Meryem Güvenir, Ufuk Kaya, Dilek Özçelik, and Kaya Süer
- Subjects
Indoor air quality, hospital, bacteria - Abstract
BACKGROUND: There are two main purposes of microbial monitoring of the inanimate hospital environment. One of them is to monitor hygiene standards, and the second is to determine the presence of nosocomial pathogens. This study was aimed to investigate the indoor environment of the different departments of a university hospital. METHODS: The prospective study was conducted in a university hospital, a teaching hospital with 143 beds and 30 ICU beds, and a hospital with 6 different wards in Northern Cyprus. Active air sampling was done by using an air IDEAL 3P device. Air samples were taken at 38 points defined before in different parts of the hospital. RESULTS: Our results showed a low level of microorganisms’ numbers in microbial airborne communities in a university hospital. Moreover, our results indicated that the temperature of the hospital's indoor environment is not significantly related to the airborne microbial community. On the other hand, our results indicate that the Aspergillus species were mostly isolated in the drug preparation room. CONCLUSION: The studies have shown that one of the causes of hospital infections is the microorganisms entering the airborne microbial communities. In this case, epidemiology and pathogenesis of airborne microbial communities should be understood.
- Published
- 2023
27. GIDA KISITLAMASI YAPILAN RATLARDA KARACİĞERDE FASN VE SCD-1 GENLERİNİN EKSPRESYON PATERNLERİ VE YAĞ ASİDİ PROFİLİ
- Author
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Hüseyin ÖZKAN, İrem KARAASLAN, Ufuk KAYA, Sevda DALKIRAN, İbrahim ALAKUŞ, Baran ÇAMDEVİREN, Hasan Hüseyin KEÇELİ, and Akın YAKAN
- Subjects
General Earth and Planetary Sciences ,General Environmental Science - Abstract
This study aimed to determine food restriction effects on the profile of fatty acids and major genes on lipogenesis expressions in liver.16 Wistar albino rats were divided into two groups and different diets were given to groups for 4-weeks. First group was fed ad libitum (Control group), another group was fed the half amount of the daily requirement (Food Restriction group, FR). As well as weekly food consumption and body weight changes, total cholesterol, HDL, LDL, and triglyceride levels were determined at the end of the feeding period. In addition to the fatty acid profile, FASN and SCD-1 genes expression levels were measured in the liver. While the body weight averages decreased after 7 days and remained similar, plasma glucose levels were found lower in the FR. FASN was upregulated approximately 6 folds, and SCD-1 increased insignificantly about 3 folds in the FR. C15:0, C18:1 n9 trans, C18:2 n6 cis, C21:0, C20:2, C20:5 n3, n6 and UFA were lower, while C16:0, C18:2 n6 trans, C20:3 n6, C22:6 n3, C22:1 n9, C22:2 and SFA were higher in FR. In addition to considering the exposure time and rate of food restriction, molecular activity and interactions in other metabolic organs should be investigated.
- Published
- 2023
28. Determination of milk fatty acids and some phenotypic characters affecting total milk fat in dairy cows with multiple linear regression
- Author
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Ufuk KAYA, Hüseyin ÖZKAN, Murat YAZLIK, Güven GÜNGÖR, Baran ÇAMDEVİREN, İrem KARAASLAN, Sevda DALKIRAN, Hasan Hüseyin KEÇELİ, Aytaç AKÇAY, and Akın YAKAN
- Subjects
General Medicine - Abstract
This study aimed to determine the effect of milk fatty acid composition, breed, and pregnancy status on total milk fat in dairy cows. The study was conducted with a total of 400 milk samples collected form healthy Holstein and Simmental cows. Milk samples were collected for total milk fat and fatty acid analysis. To investigate the effects of milk fatty acids, breed and pregnancy status on total milk fat, multiple linear regression analysis was performed. As a result of the analysis, breed, pregnancy status, C11:0, C14:0, C18:0, C18:1 ω9 and C18:3 ω6 were found to be statistically significant (p
- Published
- 2023
29. Adult Basic Life Support Practices During the COVID-19 Pandemic Period
- Author
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Nida Aydın and Ufuk KAYA
- Published
- 2022
30. DETERMINING THE USE OF PERIPHERAL INTRAVENOUS CATHETER IN INSTALLED PATIENTS WITH SOME MARKERS
- Author
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Ufuk KAYA, Dilek ÖZÇELİK, and Kaya SÜER
- Subjects
Automotive Engineering - Abstract
Objective: The aim of this study is to evaluate the medical conditions of patients who are inpatient with a peripheral intravenous catheter inserted in a private hospital in Northern Cyprus and to determine the frequency of use and risk factors that have occurred or may occur. Methods: The research is descriptive and cross-sectional. All patients who are hospitalized in a private hospital in Northern Cyprus formed the universe. The data were collected using a form of with 18 items. Data collection was provided face-to-face with the patients and from their own patient files. Written informed consent was obtained from the university ethics committee, the university administration and the patients for the study. Results: It was determined that most of the patients were male (49.09%) and peripheral intravenous use was more common (92.73%) in patients older than 18 years of age. It was determined that 98.18% of the patients had the date of the catheter documented, and 54.55% did not specify the insertion time. The anterior part of the arm was found to be the most common catheter application (36.36%). In 85.45% of the patients, a catheter-related question did not develop and 61.82% of them were evaluated in the last 24 hours. Conclusion: The latest status of peripheral intravenous catheter applications and compliance and focus on internationally published guidelines in peripheral intravenous catheter applications and management bring about a serious improvement in surveillance, evaluation, decision-making, minimizing application errors, reducing the risk of complications, and documentation.
- Published
- 2023
31. COVID-19 Pandemisi Döneminde İlk Yardım Uygulamaları: Avrupa Resüsitasyon Konseyi’nin Önerileri
- Author
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Ufuk KAYA and Nida AYDIN
- Subjects
Health Policy and Services ,Sağlık Politikaları ve Hizmetleri ,Avrupa Resüsitasyon Konseyi,İlk yardım,COVID-19,Pandemi ,European Resuscitation Council,First aid,COVID-19,Pandemic - Abstract
COVID-19 Aralık 2019 itibari ile hayatımıza girmiştir ve hala daha olumsuz etkilerini sürdürmeye devam etmektedir. Yakında bir yıl olacak olan bu pandemi dönemi, birçok değişiklik ve önlemi hayatımıza katmıştır. El hijyeni, maske takılması, eldiven giyilmesi, sosyal mesafeye önem verilmesi gibi basit uygulamaların yanında hastane öncesi alanda müdahale edilecek alanlarda da bazı değişiklikler dikkat çekmektedir. Özellikle ilk yardım gibi sağlık uygulamalarında bahsedilen bu basit uygulamaların önemi daha da artmıştır. Hastane öncesi alanda ilk yardım uygulamalarına ihtiyaç duyan hasta ya da kazazede COVID-19 pozitif vaka olabilir. Bu nedenle bu dönemde her hastaya şüpheyle yaklaşılmalı ve kişisel koruyucu önlemler alınmalıdır. Bu sayede uygulamalarda kesin bir değişiklik olmamakla beraber, özellikle bulaşın önlenmesi amaçlı maddeler dikkati çekmektedir. Bu cümlelerden yola çıkılarak, bu derlemede, COVID-19 pandemisi döneminde Avrupa Resüsitasyon Konseyi tarafından yeni vurgulanan noktaları ile ilk yardım müdahalelerinin belirtilmesi amaçlanmıştır., COVID-19 entered our lives as of December 2019 and still continues to show negative effects. This pandemic period, which will soon be a year, has brought many changes and measures to our lives. In addition to simple practices such as hand hygiene, wearing masks, wearing gloves, and paying attention to social distance, some changes are also noticeable in areas to be intervened in the pre-hospital area. Especially, the importance of these simple applications mentioned in health applications such as first aid has increased. Patient or casualty in need of first aid in the pre-hospital area may be a COVID-19 positive case. Therefore, every patient should be approached with suspicion and personal protective measures should be taken during this period. In this way, although there is no definite change in applications, substances especially for preventing contamination attract attention. Based on these sentences, in this review, it is aimed to state the first aid interventions with the newly emphasized points by the European Resuscitation Council during the COVID-19 pandemic.
- Published
- 2021
32. Prevalence of Subclinic Mastitis and its Impacts in Anatolian Buffaloes
- Author
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Baran Çamdeviren, Mehmet Imrağ, Akın Yakan, Mehmet Küçükoflaz, Hüseyin Özkan, İrem Karaaslan, Güven Güngör, Ufuk Kaya, and Savaş Sariözkan
- Subjects
Anadolu mandası,finansal kayıp,subklinik mastitis,süt yağı,verim ,Fen ,Science ,Anatolian buffalo,financial loss,milk fat,subclinic mastitis,yield ,General Earth and Planetary Sciences ,Biology ,General Environmental Science - Abstract
Bu çalışmanın amacı, Anadolu mandalarında subklinik mastitis prevalansının ve sütte meydana getirdiği değişiklik-lerin belirlenmesi ile hastalığın oluşturduğu finansal kayıpların hesaplanmasıdır. Araştırmanın materyalini Kayseri’de yetiştirilen toplam 24 baş dişi Anadolu mandasına ait 96 meme lobundan elde edilen süt örnekleri oluşturmuştur. Süt örnekleri Mart 2021’de dört işletmeden temin edilmiş olup, sütlerin enfeksiyon durumu Kaliforniya Mastitis Test (CMT) ve somatik hücre sayısı (SHS) incelenerek değerlendirilmiştir. Araştırma bulgularına göre, 5 manda (%20.8) ve 8 me-me lobunun (%8.3) enfekte olduğu ve ortalama SHS değerinin 182500 hücre/ml olduğu tespit edilmiştir. Enfekte hay-vanların süt yağının %27.4 oranında (P, The aim of this study was to calculate the prevalence and changes in milk due to subclinical mastitis in Ana-tolian buffaloes, and the financial losses caused by the disease. The material of the study consisted of milk samples obtained from 96 udder lobes belonging to a total of 24 female Anatolian buffaloes raised in Kayseri. Milk samples were collected from four farms in March 2021 and the infection status of the milk was evaluated by examining the Cali-fornia Mastitis Test (CMT) and somatic cell count (SHS). According to the results, 5 buffalo (20.8%) and 8 lobes (8.3%) were found to be infected and mean SHS value was found as 182500 cell/ml. The fat of infected animals milk de-creased by 27.4% (P
- Published
- 2021
33. The first assessment of a dog bite prevention program for pre-school children in Turkey
- Author
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Marietta Papadatou-Pastou, Yasemin Salgirli Demirbas, Ozge Sahin, C. Etkin Safak, Sarah Heath, Ilknur Yardim Ozer, Ufuk Kaya, and Sevim Isparta
- Subjects
medicine.medical_specialty ,education.field_of_study ,General Veterinary ,business.industry ,Child safety ,Public health ,education ,Population ,medicine.disease ,Dog bite ,Age groups ,Family medicine ,Medicine ,Pre school ,business ,Urban rabies ,Interactive education - Abstract
Child safety around dogs is a serious public health concern, in particular in countries where free-ranging dogs and dog-mediated urban rabies are an issue, such as Turkey. The present study is the first to investigate the effectiveness of a dog bite prevention programme in pre-school children in Turkey. In this study, pre-school students aged between 3 and 6 years (N = 117) received an interactive education programme. The programme consisted of an interactive oral presentation, a drama session (“Being a Tree”), and a practical session, i.e. meeting a dog. Two different questionnaires were administered to children before (PrE), immediately after (PE0), and one week after the programme (PE1): (i) the Dog-Human Interaction questionnaire and (ii) the Contexts for Approaching Dogs questionnaire. Significant improvements in the scores in both questionnaires were found between the evaluations before and after the education. Moreover, older students had significantly higher scores in both questionnaires during PE0 and PE1. The majority of the students were found to be successful in the evaluation of the “Being a Tree'' concept during PE0 and PE1. The results of this study show that the interactive dog bite prevention program can increase the awareness and knowledge of pre-school children on dog behavior. Findings also suggest that age should be considered when designing a dog bite education program. As being a tree concept can be learned by children from all age groups, it can be a useful and beneficial component of dog bite prevention programs in countries having a big population of free-ranging dogs.
- Published
- 2021
34. A research on Babesia and Theileria species in sheep and goats of Kırıkkale province through molecular methods
- Author
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Ufuk Kaya, Meral Aydenizöz, Sami Gökpinar, and Aycan Nuriye Gazyağci
- Subjects
Veterinary medicine ,General Veterinary ,biology ,Theileria ,Babesia ,biology.organism_classification - Published
- 2021
35. Changes in serum total protein and immunoglobulin G concentrations and Brix percentages in neonatal Arabian foals from birth up to 21 days of age
- Author
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Mehmet Akköse, Eren Karabulut, Şeref İnal, Gürcan Çağdaş Dik, Ceyhan Özbeyaz, Ufuk Kaya, Mustafa Çam, and Bayram Topal
- Subjects
Refractometry ,Immunodiffusion ,General Veterinary ,Animals, Newborn ,Pregnancy ,Immunoglobulin G ,Colostrum ,Immunology ,Animals ,Female ,Horses ,Sensitivity and Specificity - Abstract
The aim of this study was to evaluate changes in the serum immunoglobulin G (IgG) and serum total protein (STP) concentrations and serum Brix percentages of neonatal Arabian foals during first 3 weeks of life. Blood samples were collected from 12 apparently healthy foals by jugular venipuncture at birth and at 12-hours, 24-hours, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15 and 21 days of age. Serum IgG and STP concentrations and Brix percentages were measured by the radial immunodiffusion assay, and digital STP and Brix refractometers, respectively. Based on the serum IgG concentrations measured at 24 h, two foals were diagnosed with failure of transfer of passive immunity (FTPI). While IgG concentrations were determined using the data of foals with adequate transfer of passive immunity, other calculations were made using the data of all foals. The mean IgG concentration of the foals increased from birth (200 mg/dl) to 12 (2068.5 mg/dl) and 24 h (2184.7 mg/dl), and progressively decreased up to 21 days of age (1318.5 mg/dl). The serum IgG concentrations at 12 h were highly correlated with each of the IgG concentrations measured over the 21-day period. The serum IgG and STP concentrations and Brix percentages of the foals diagnosed with FTPI at 12 h did not reach the adequate strata over time. These results suggest that foals can be reliably tested for passive immunity status at 12 h after birth.
- Published
- 2022
36. Yem Kısıtlamasının Rat Testisinde PTGS2 ve NRF2 Genlerinin Ekspresyon Seviyelerine Etkileri
- Author
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Hüseyin ÖZKAN, Sevda DALKIRAN, İrem KARAASLAN, Ufuk KAYA, İbrahim ALAKUŞ, Baran ÇAMDEVİREN, and Akın YAKAN
- Subjects
Fen ,Food restriction,NRF2,oxidative stress,PTGS2,testis ,Science ,NRF2,Oksidatif stres,PTGS2,testis,yem kısıtlaması - Abstract
Bu çalışmanın amacı, yem kısıtlamasının rat testisinde oksidatif duruma etkilerinin moleküler seviyede belirlenme-sidir. Toplam 16 erkek Wistar rat iki gruba ayrılmıştır (n=8) ve dört hafta boyunca beslenmiştir. Birinci grup olan Kontrol (Cont) grubuna yem ve su ad libitum olarak verilmiştir. İkinci grup olan, yem kısıtlaması (FR) grubuna Cont grubunun yarısı kadar yem sunulurken su ad libitum olarak sunulmuştur. Beslenme periyodunun sonunda ratlar anestezi altında kardiyak kan alınarak ötenazi edilmiştir. Testis dokusunda Malondialdehit (MDA) seviyeleri belirlenmiş ve nmol/mg protein olarak hesaplanmıştır. Ayrıca testis dokusunda Prostaglandin-Endoperoxide Synthase 2 (PTGS2) ve Nuclear factor erythroid 2–related factor 2 (NRF2) genlerinin ekspresyon seviyeleri tespit edilmiştir. Gruplarda MDA ve gen ekspresyon seviyeleri benzer bulunurken, PTGS2 ve NRF2 genleri arasında pozitif korelasyon bulunmuştur (r=0.629; P, This study aimed to investigate the effects of food restriction on oxidative status at the molecular levels of the testis in rats. A total of 16 male Wistar rats were allocated to two groups (n=8) and fed for four weeks. The first group was control (Cont) and consumed food and water ad libitum. The second one, food-restricted group (FR) was presented half of the regular consumption. But the water was presented ad libitum. The feeding period was maintained for four weeks. At the end of the feeding period, rats were euthanized by cardiac blood sampling under anesthesia. Malondialdehyde (MDA) levels in testis tissue were determined and calculated as nmol/mg protein. In addition, Prosta-glandin-Endoperoxide Synthase 2 (PTGS2) and Nuclear factor erythroid 2–related factor 2 (NRF2) genes expression levels were determined in testis tissue. While MDA and gene expression levels were found similar in groups, a positive correlation was found between PTGS2 and NRF2 genes (r=0.629; P
- Published
- 2022
37. Ideal Suggestions for Discharge Training and Telephone Counseling of Patients With Coronary Artery Bypass Graft Surgery: A Randomized Controlled and Experimental Study
- Author
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Umran Dal Yılmaz and Ufuk KAYA
- Subjects
Counseling ,Self Care ,Humans ,General Medicine ,Coronary Artery Bypass ,Patient Discharge ,Telephone - Abstract
In this context, discharge training and telephone counseling given to patients who underwent coronary artery bypass graft surgery increase the ability of patients to cope with and adapt to their self-care.This study was a randomized controlled, experimental design. Both experimental and control groups consisted of 35 individuals with G*power analysis (n = 70). Patients in the experimental group were given discharge training and telephone counseling for two months. At the end of the process, data collection forms were administered to both groups for the last time. Necessary ethical approvals were taken and consent was taken from the patients.After the discharge training and telephone counseling given to the experimental group, the mean Exercise of Self-Care Agency Scale (ESCA) score of the patients increased by 13.94; the mean Coping and Adaptation Processing Scale (CAPS) increased by 13.6. The mean ESCA score of the control group increased by 7.86; the mean CAPS score increased by 9.14. The effect size that occurred for both groups was statistically significant (Positive results were achieved in the experimental group which received given discharge training and telephone counseling.ClinicalTrials.gov Identifier: NCT05104996.
- Published
- 2022
38. Investigation of the prophylactic and therapeutic effectiveness of oral thyme extract in rats experimentally infected with cryptosporidium parvum
- Author
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Erdal Kara, Sibel Yasa Duru, Sami Gökpinar, Özkan Duru, Sedat Sevin, Yasin Şenel, and Ufuk Kaya
- Subjects
General Veterinary ,General Medicine - Abstract
In this study, the prophylactic and therapeutic activities of thyme extract at different concentrations against experimental Cryptosporidium parvum infection in immunosuppressed rats were investigated. Thyme extract was prepared at four different concentrations (10%, 30%, 50%, and 100%) and administered as a single oral dose of 1 mL for evaluation of its prophylactic efficacy. Five consecutive days after infection was detected in all rats, therapeutic evaluations were also performed. According to the results obtained by daily counting of oocysts in stools, the prophylactic and therapeutic effects of thyme extract administration were significant in comparison to the control group (P˂0.01). Oocyst shedding continued in the control group at high numbers from the beginning to the end of the study, while oocyst counts in the prophylaxis groups remained low throughout the study. On the other hand, oocyst excretion rates were high in the therapeutic groups and decreased rapidly after thyme extract administration. At the end of the study, oocyst excretion had completely stopped for some rats administered thyme extract. There was no group in which oocyst shedding ceased for all rats. No significant differences were observed in the therapeutic or prophylaxis groups regarding the doses administered (P 0.01). Renal and hepatic functions were monitored by measuring urea, creatinine, alanine transaminase, and aspartate transaminase levels before and after thyme extract administration. As a result, it was concluded that oral thyme extract administration at the doses applied in this study is effective and safe in the prophylactic and therapeutic treatment of experimental cryptosporidiosis in rats.
- Published
- 2022
39. Comparison of Hematological and Biochemical Profiles of Late Pregnant and Non-Pregnant Mares
- Author
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Ezgi Dikmeoglu, Murat Onur Yazlik, Ufuk Kaya, Burak Baran, Arzu Esen, Murat Gocen, and Özgenur Kafkas
- Subjects
urogenital system ,business.industry ,animal diseases ,Physiology ,Medicine ,business ,Non pregnant ,reproductive and urinary physiology - Abstract
The maternal body must adapt to fetal growth and development during the state of pregnancy for successful foal and mother. Pregnancy status as in other mammals is related to physiology and hematology. This study aimed to compare the hematology profiles and biochemical parameters of late pregnant and non-pregnant mares. Twenty-two mares were included in the study. Mares were divided into two groups according to the pregnancy status. Hematology profile and biochemical parameters were analyzed from blood samples collected from the jugular vein. All data were analyzed using Stata 12/MP4. White blood cell count, lymphocyte, red blood cell count, hemoglobin concentration, hematocrit, monocyte and percentage of monocyte were significantly lower in non-pregnant mares compared to late pregnant mares (P0.05). On the other hand, biochemical parameters analysis showed that calcium, total bilirubin, and triglyceride concentrations were greater in late pregnant mares (P0.05). In conclusion, the present study showed hematology profile and biochemical parameters differences in late pregnant and non-pregnant mares. These values could be useful in clinical practices to assess the situation of late pregnant mares.
- Published
- 2021
40. Yatan Hastalarda Basınç Yarası Risk Faktörlerinin Belirlenmesi: Bir Üniversite Hastanesi Araştırması
- Author
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Ufuk Kaya and Özge Uzun
- Subjects
Gynecology ,medicine.medical_specialty ,business.industry ,medicine ,Hasta ,business - Abstract
Amac: Bu calisma, universite hastanesinde yatan hastalarda basinc yarasi prevalansini ve risk faktorlerini belirlemek amaciyla yapilmistir. Gerec ve Yontemler: Tanimlayici ve kesitsel olarak yapilan calismanin orneklemini Kuzey Kibris’ta bulunan universite hastanesinin yogun bakim uniteleri, dahili/cerrahi birimlerin yatakli servislerinde ve hastaneye 24 saat oncesinden yatan, 18 yas ve ustu 54 hasta olusturmustur. Verilerin toplanmasinda, Hasta Bilgi Formu ve Waterlow Basinc Yarasi Riski Degerlendirme Olcegi kullanildi. Nokta prevalansi belirlemek icin veriler belirlenen tarihte bir gun icinde toplandi. Istatistiksel analizlerde Statistical Package for the Social Sciences 18.0 programi kullanilmistir. Sonuclar %95’lik guven araliginda, anlamlilik p
- Published
- 2020
41. Occupational Exposure to High-level Electric Fields and Mechanistic Effects of External Supplements
- Author
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Arın Tomruk, Elcin Ozgur Buyukatalay, Ufuk Kaya, N. Nuray Ulusu, and Goknur Guler Ozturk
- Abstract
The rate of workplace-related various diseases will have arisen. Electrical workers, particularly, might be exposed to different physical, chemical, and biological agents. The respiratory system will be more vulnerable to the initiated inflammatory responses with the combined effects of these dangerous agents. The present study investigated E field-induced intracellular reactive intermediates' status and their disruptive impacts on structural molecules. Moreover, the lung tissues' antioxidant levels and preventive effects of external treated NAC and EGCG were also investigated under long-term E field exposure. The long-term exposure to 50 Hz 24kV/m vertical E Field might indirectly affect the guinea pigs' lung tissues overproducing intracellular ROS. Oxygen and nitrogen-derived reactive intermediates primarily injured lipids' and proteins' structures. With the treatments of NAC and EGCG, this disruptive effect decreased under E field exposure. In establishing safety limits for occupational exposures of electrical workers (more than 10kV/m), there is a need for further mechanistic studies on the relationships between high-level electric fields' exposures and occupational-related diseases at the molecular level.
- Published
- 2022
42. Strongly Statistical Convergence
- Author
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Ufuk Kaya and Nazlım Deniz Aral
- Subjects
Sequence ,General Mathematics ,010102 general mathematics ,Statistical convergence ,Limit superior and limit inferior ,01 natural sciences ,010101 applied mathematics ,Combinatorics ,Matrix (mathematics) ,Subsequence ,Limit (mathematics) ,Uniqueness ,0101 mathematics ,Complex number ,Mathematics - Abstract
We introduce a concept of A-strongly statistical convergence for sequences of complex numbers, where A = (ank)n,k∈ℕ is an infinite matrix with nonnegative entries. A sequence (xn) is called strongly convergent to L if $$ \underset{n\to \infty }{\lim }{\sum}_{k=1}^{\infty }{a}_{nk}\left|{x}_k\right.-L\left|=0\right. $$ in the ordinary sense. In the definition of A-strongly statistical limit, we use the statistical limit instead of the ordinary limit with a convenient density. We study some densities and show that the (ank)-strongly statistical limit is an ( $$ {a}_{m_nk} $$ )-strong limit, where the density of the set {mn ∈ ℕ : n ∈ ℕ} is equal to 1. We introduce the notion of dense positivity for nonnegative sequences. A nonnegative sequence (rn) is dense positive provided the limit superior of a subsequence ( $$ {r}_{m_n} $$ ) is positive for all (mn) with density equal to 1. We show that the dense positivity of (rn) is a necessary and sufficient condition for the uniqueness of A-strongly statistical limit, where A = (ank) and rn = $$ {\sum}_{k=1}^{\infty }{a}_{nk} $$ . Furthermore, necessary conditions for the regularity, linearity and multiplicativity of the A-strongly statistical limit are established.
- Published
- 2020
43. Basis properties of root functions of a regular fourth order boundary value problem
- Author
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Ufuk Kaya and Esma Kara Kuzu
- Subjects
Statistics and Probability ,Matematik ,Algebra and Number Theory ,fourth order eigenvalue problem,not strongly regular boundary conditions,asymptotic behavior of eigenvalues and eigenfunctions,basis properties of the system of root functions ,Basis (linear algebra) ,Function (mathematics) ,Eigenfunction ,Space (mathematics) ,Combinatorics ,Simple (abstract algebra) ,Geometry and Topology ,Boundary value problem ,Finite set ,Mathematics ,Analysis ,Eigenvalues and eigenvectors - Abstract
In this paper, we consider the following boundary value problem\[ y^{(4)}+q(x) y=\lambda y,~\ \ \ 0
- Published
- 2020
44. Investigation of PEMFC performance for cruising hybrid powered fixed-wing electric UAV in different temperatures
- Author
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Eyyup Oksuztepe, Zehra Ural Bayrak, and Ufuk Kaya
- Subjects
Battery (electricity) ,Renewable Energy, Sustainability and the Environment ,Energy Engineering and Power Technology ,Proton exchange membrane fuel cell ,02 engineering and technology ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,01 natural sciences ,Automotive engineering ,0104 chemical sciences ,Power (physics) ,Fuel Technology ,Fixed wing ,Hybrid system ,Fuel efficiency ,Environmental science ,Hybrid power ,0210 nano-technology ,MATLAB ,computer ,computer.programming_language - Abstract
In this paper, the performance of the proton exchange membrane fuel cell (PEMFC) for cruising hybrid powered fixed-wing unmanned aerial vehicle (UAV) is investigated in different temperatures. The hybrid powered UAV has two power sources: FC and battery. In this regard, Lithium-Ion (Li-ion) and Nickel Metal Hydride (Ni-MH) are selected as battery types. The PEMFC performance is analysed in three scenarios determined as FC, FC & Li-ion and FC & Ni-MH. The linearized UAV model is simulated in MATLAB/Simulink and only cruise phase of flight considered. Simulation results shown that the UAV model with pure FC has the longest endurance. The endurance has influenced from total weight of the UAV and hybrid system characterization. Furthermore, temperature changes also affect fuel consumption. This paper provides a general description of the proposed UAV model with three types of hybrid power source and describes the design methods and simulation cases for long endurance.
- Published
- 2020
45. Sütten Kesim Dönemindeki Damascus Keçilerinde Oksidatif Stresle İlişkili Majör Moleküler Parametrelerin Süt Bileşimi Üzerine Etkileri
- Author
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Akın YAKAN, Murat YÜKSEL, Baran ÇAMDEVİREN, Ufuk KAYA, İrem KARAASLAN, Sevda DALKIRAN, and Hüseyin ÖZKAN
- Subjects
General Veterinary - Published
- 2022
46. Comparative evaluation of major milk quality parameters of Holstein and Simmental cows at different lactation stages under similar environmental conditions
- Author
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UFUK KAYA, HÜSEYİN ÖZKAN, MURAT ONUR YAZLIK, BARAN ÇAMDEVİREN, GÜVEN GÜNGÖR, İREM KARAASLAN, SEVDA DALKIRAN, HASAN HÜSEYİN KEÇELİ, AYTAÇ AKÇAY, and AKIN YAKAN
- Subjects
General Veterinary - Abstract
e aim of this study was to evaluate the composition and quality parameters of Simmental and Holstein cows’ milk with different lactation stages under the same environmental conditions. Multiparous Holstein and Simmental cows from different lactation stages (n = 210) were included in the present study. MDA, SCC, composition, and fatty acid analyzes were performed from the collected milk samples. To determine the effect of breed, lactation stage and their interactions, linear mixed models were applied to these parameters. Among the breeds, only milk fat and pH were determined statistically significant as composition parameters. While C15:0 and C17:1 n8 were observed to be statistically significant for the breed factor, C18:2 n6 trans were statistically significant only for the lactation stage factor. Moreover, the fatty acids of C4:0, C6:0, C8:0, C10:0, C11:0, C12:0, C13:0, C16:0, C18:1 n9, C20:0 and C22:6 n3 were determined to be statistically significant in terms of interactions. For the fatty acid indices, SCFA, MCFA, n3 and n6/n3 were statistically significant in terms of interactions while SFA, MUFA, UFA and AI were statistically significant in terms of breeds. On the other hand, new studies are needed to investigate the differences between these breeds at the molecular level for milk quality and fatty acid synthesis.
- Published
- 2023
47. Performance analysis of more electric aircraft starter/generator by different electric loads
- Author
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Eyyup Oksuztepe and Ufuk Kaya
- Subjects
General Medicine - Published
- 2023
48. Basic First Aid Knowledge Levels of Students of the Vocational School of Health Services
- Author
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Tugce Balci Okcanoglu, Meryem Güvenir, Emrah Guler, Aslı Aykaç, and Ufuk Kaya
- Subjects
Medical education ,Health services ,business.industry ,Medicine ,Vocational school ,business ,First aid - Published
- 2019
49. Differentiation of Anatomic Entities in the Dog Stifle Joint Following S10B Plastination: Comparative Colorimetric and Radiological Investigations
- Author
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Burcu Insal, Caner Bakici, Ufuk Kaya, Hasan Bilgili, Ahmet Çakir, Orkun Akgun Remzi, Okan Ekim, and Ali Bumin
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musculoskeletal diseases ,040301 veterinary sciences ,Veterinary medicine ,Stifle joint ,knee ,Computed tomography ,Knee Joint ,0403 veterinary science ,colorimetric analysis ,03 medical and health sciences ,Plastination ,SF600-1100 ,medicine ,Fixation (histology) ,cross-sectional anatomy ,0303 health sciences ,General Veterinary ,medicine.diagnostic_test ,three-dimensional reconstruction ,business.industry ,computed tomography ,04 agricultural and veterinary sciences ,Anatomy ,Formalin fixed ,030301 anatomy & morphology ,Color changes ,Radiological weapon ,business - Abstract
The knee joint is not only the most important and complex structure to present during anatomy lectures, but also a significant region for radiologists and orthopedicians. The objectives of this paper are: 1) to evaluate the efficacy of plastinated specimens by measuring colorimetric differentiation and 2) to compare the anatomical structures of the images obtained from computed tomography (CT) and silicone plastination cross-sections and perform three-dimensional (3D) reconstructed models of the specimens. A total of 16 knee joints selected from the 10% formalin fixed/dissected group (n=6), non-fixed/dissected group (n=6) and non-dissected whole knee joint group (n=4) were scanned by CT and plastinated by using the S10B silicone technique. The color changes of the structures were quantitatively determined with the colorimeter device. Plastinated whole knee joints were cut transversally with a band saw and compared with CT images. Finally, 3D reconstruction of the knee joints was performed from CT images with the 3D reconstruction program. There were statistically significant differences between the fixed and non-fixed groups in terms of color changes (p
- Published
- 2019
50. Evaluation of Turkish Cypriots’ Knowledge, Attitudes and Behaviours About The COVID-19: A Descriptive Study
- Author
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Ufuk KAYA, Elif GÜNEŞ, Elif EREN, Mohammed ISSA, Emrah GÜLER, Aslı AYKAÇ, Nedim CAKİR, and Kaya SÜER
- Subjects
Health Care Sciences and Services ,Automotive Engineering ,Sağlık Bilimleri ve Hizmetleri ,COVID-19,knowledge,attitude,awareness,precaution ,covıd-19,knowledge,attitude,awarness,precaution - Abstract
Objective: COVID-19 was first discovered in Wuhan in December 2019 and spread all over the world. This study was conducted to evaluate the knowledge, attitudes and behaviours of people living in Northern Cyprus regarding COVID-19.Methods: This descriptive study designed to evaluate the level of knowledge, attitude and behaviour of participants who are Turkish Cypriots between 7-17 April 2020 after the first COVID-19 case diagnosed in our country. A twenty-nine-item questionnaire was prepared, distributed randomly to participants on social media and took 7-10 min to complete. Data were analyzed with a 95% confidence and p
- Published
- 2021
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