TR-Dizin İndeksli Yayınlar Koleksiyonu

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https://hdl.handle.net/20.500.11776/3975

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Influence of Leaf Water Potential and Defoliation Techniques on Leaf Area Characteristics in 'Merlot'/41B Grapevines
(Kahramanmaras Sutcu Imam Univ Rektorlugu, 2024) Candar, Serkan; Bahar, Elman; Korkutal, Ilknur; Aktas, Fatma Betul
This study aimed to assess how variations in leaf water potential and different defoliation treatments influence leaf area characteristics. The research was carried out during two consecutive years (2019-2020) on 'Merlot'/41B combination grapevines cultivated in the Tekirda & gbreve;, & Scedil;ark & ouml;y vineyards of Chateau Kalpak. Four distinct water stress levels (S0, S1, S2, and S3) were implemented based on measurements of leaf water potential. Additionally, defoliation treatments were applied, including Control (C), Full Window (FW), Right Window (RW), and Left Window (LW). Upon analyzing leaf characteristics, a clear trend emerged, wherein higher stress levels correlated with an increased area of primary, lateral, and total leaves per vine. Concerning leaf removal interventions, the application of FW led to a reduction in all criteria except for the total area of main leaves per vine. While FW causes a decrease in certain leaf parameters under controlled conditions, the stress-induced increase in total leaf area points to the mechanism of plasticity in grapevines and warrants further investigation under different environmental and production dynamics.
Importance of Insemination Number per Pregnancy in Breeding Dairy Cattle and Economic Losses: The Case of Holstein Dairy Cattle
(Univ Namik Kemal, 2024) Tore, Eyup; Tuna, Yahya Tuncay; Onal, Ahmet Refik
Milk and fertility are two criteria that directly affect the profitability of enterprises in dairy farming. Fertility, which is tried to be measured using different criteria, can be defined as the ability of female cattle to get pregnant on time and give birth to healthy calves until later ages. The expected from female cattle is to become pregnant on time and to maintain the ability to give birth to healthy calves as long as they remain in the herd. the number of inseminations per pregnancy is indirectly related to the first of the fertility criteria of females, the age of use in breeding, while the service period is a criterion that directly affects the calving interval and calving year. The aim of the study was to determine the information and economic losses caused by the deviations from the standard values in the Number of Inseminations Per Conception (NIPC) in our country's dairy cattle. The fertility records (NIPC) of 20662 Holstein Dairy cattle (39938) between 2013-2019 belonging to Tekirdag Province CBA constituted the material of the research. When we consider the effect of calving years; It is seen that the years that created the difference have the lowest average of 2014 (1.76 +/- 0.022), and the highest average (1.95 +/- 0.020) stems from the 2015 data. (p<0.01). When we examine the effects of seasons on NIPC; it was seen that the difference was caused by winter (1.81 +/- 0.015) and autumn (1.94 +/- 0.016) seasons (p<0.01). When we evaluate the lactation order, it is seen that the effects of the 1st, 2 nd and 3 rd lactation lines on NIPC are significant (p<0.01). When we evaluated the results in our study, the NIPC average was calculated as 1.87 +/- 0.01. A total of 39938 inseminations were made between 2013-2019. The amount of financial loss corresponding to the failure rate was 10.147.200 TL. Although our results are close to the ideal value, the amount of loss in NIPC in terms of cost is too large to be ignored.
Tomorrow's Choices: A Comprehensive Study of Consumer Perspectives on Functional Foods
(Univ Namik Kemal, 2024) Erel, Fatma Pelin; Oraman, Yasemin
Consumers strive for an improved quality of life and longevity on a daily basis. Owing to shifts in consumer behavior, there is a consistent rise in the proportion of well-informed and mindful consumers. Functional foods, known for their health-preserving capabilities, are gaining increased prominence within the spectrum of food products. The functional food market, both in Turkey and globally, holds promise as an unexplored sector. Within this context, food companies are keen to ascertain whether their newly developed products align with consumer expectations and how consumers engage with these offerings. The study's objective is to assess consumer attitudes towards products positioned as integral to a healthy diet, particularly those endorsed as functional foods. Moreover, the aim is to derive indicators that can enhance strategic and tactical marketing decisions based on the study's findings. The primary focus of the research centers on the purchasing behaviors of Turkish consumers. Employing an inductive research design, hypotheses were tested using data collected from 391 Turkish consumers, that reside in Istanbul, through surveys. Istanbul was chosen as it is a metropolis and a small-scale example of Turkey. Analysis methods included descriptive and inferential statistics, explanatory factor analysis (PCA), and binary regression analysis. The results revealed a heightened interest in functional foods among women, families with children, and individuals with higher incomes. Furthermore, evolving lifestyles, increased incomes, and heightened consumer awareness contribute to a surge in demand for innovative food products. The revelations derived from these findings carry profound implications that extend their influence across various domains. Primarily, state institutions actively involved in formulating and implementing public health programs stand to be significantly impacted. The newfound insights provide an invaluable resource for refining and enhancing the efficacy of existing public health initiatives. By integrating this knowledge into their strategies, these institutions can tailor interventions more precisely, addressing specific concerns and promoting the overall well-being of the populace. Moreover, the implications also reverberate within the intricate realm of the food sector, involving a diverse range of stakeholders. For businesses within this industry, understanding and adapting to these findings can prove instrumental in shaping their practices. This may encompass adjustments in production processes, sourcing of ingredients, and the development of products that align with emerging health considerations. Proactive engagement with these insights not only enhances the societal impact of these food-related enterprises but also contributes to the broader narrative of responsible and health-conscious business practices.
Evaluation of the Relationship Between Rainwater Harvesting and Landscape Plant Water Consumption
(Univ Namik Kemal, 2024) Misirli, Nilay; Sisman, Elif Ebru
If rainwater is not used, it is considered waste and ends up as surface water in underground resources or flows into oceans. In view of dwindling water resources, rainwater should not only flow as surface water but should be reused to conserve groundwater and mains water. To achieve this, rainwater must be collected and solutions produced on site. When we look at water consumption rates, we realize that a large amount of water is significantly used for the irrigation of landscaped areas. In addition, the water requirements of plants are often not known and water is wasted through unconscious irrigation. This study aims to provide the right amount of irrigation by showing the water requirements of plants according to their species. At the same time, it aims to provide the right amount of irrigation by showing the water requirements of plants according to their species. These two main objectives are aimed at learn the needs of plants and at the same time ensuring efficient water use. In this study, it is aimed to contribute to the water cycle by reusing rainwater. Various roofing and paving materials were identified in the study area. The amount of rainwater to be collected from the different materials within the study area was calculated using the Rational Method and the water consumption of each plant was calculated using the CropWat 8.0 program. In conclusion, the amount of rainwater collected on the entire campus was calculated as 494.000 m3per year and the amount of irrigation water required by the plants was 54.530 m3per year. This data shows that the amount of rainwater collected corresponds to the water consumption of the landscape plants. The rainwater harvested on campus is fed into tanks. The rainwater collected on the campus is channelled into tanks. The volume of the tanks was calculated. In addition to the stored rainwater, solutions were developed on-site using sustainable methods for the remaining rainwater. Plants with low or medium water requirements are recommended for use in new landscape areas.
Determination of Important Weed Species, Densities and Frequencies in Hazelnut ( Corylus avellana L.) Orchards in Düzce Province
(Univ Namik Kemal, 2024) Kara, Adnan; Ermec, Hakan; Diblan, Sezer
Hazelnut ( Corylus avellana L.) cultivation has strategic value for T & uuml;rkiye, which is a leader in global hazelnut production. This study aims to determine the important weed species, densities, and frequencies in hazelnut orchards in D & uuml;zce province. The presence of weeds is a significant challenge in hazelnut cultivation as they compete with the crop for nutrients, water, and sunlight, while also serving as hosts for pests and pathogens. Effective weed management is critical to maintaining yield and quality. Field research was conducted in 50 hazelnut orchards in 8 districts of D & uuml;zce and weed densities and frequencies were calculated using the Odum & Barrett method. In the survey studies conducted in D & uuml;zce hazelnut orchards, it was determined that 103 weed taxa belonging to 31 families and the ones with the species with the densest populations included Potentilla reptans (creeping cinquefoil) (35.46 plants m-2), Poa pratensis (meadow grass) (12.15 plants m-2), and Bromus hordeaceus subsp. hordeaceus (soft brome) (11.97 plants m-2). The most frequent species were calculated to be Potentilla reptans (creeping cinquefoil) (81.80%), Oenanthe silaifolia (narrow-leaved water-dropwort) (78.34%) and Lapsana communis (nipplewort) (60.72%). Among the families identified, the Poaceae family has the highest number of species (19), followed by Fabaceae (14) and Asteraceae (13). Studies have detected those motorized scythes and herbicides, whose increased use may cause environmental effects and increase pest problems, are widely used in weed control. Identifying weed species and understanding their density and frequency will contribute to the adoption of more precise and environmentally friendly control methods and thus to increasing productivity and sustainability in hazelnut cultivation. Based on these findings, by applying targeted weed control measures, yield losses can be significantly reduced, beneficial organisms can be protected and the overall productivity and economic sustainability of hazelnut agriculture in D & uuml;zce Province can be contributed.
Fertility Status of Agricultural Soils in İ stanbul Province
(Univ Namik Kemal, 2024) Kayali, Emel; Yuksel, Orhan
As a region of geopolitical significance and industrialization, & Idot;stanbul province has a traditional production system in which intensive agricultural production is carried out, especially in Silivri and & Ccedil;atalca districts, where sunflower and wheat agriculture is carried out in alternation under irrigated conditions due to sufficient rainfall. These agricultural areas, which are also under intense urbanization pressure, need to be protected in order to be used sustainably. For this purpose, it is a priority to determine the current productivity status of agricultural areas. There is no study in the literature that reveals the current agricultural productivity status of & Idot;stanbul province. In this study, some physical and chemical soil properties of the agricultural areas where the same agricultural production system has been practiced for many years were determined in terms of sustainable agriculture. In order to determine these soil properties, surface soil sampling (0-20 cm) was carried out according to the grid system at 2.5 x 2.5 km intervals covering all agricultural areas and a total of 196 soil samples were taken and the field study was completed. All soil samples were analyzed for texture, pH, EC, organic matter, available phosphorus, available potassium and the current fertility status of the agricultural areas in the province of & Idot;stanbul was determined. According to the results of the research, the agricultural soils of & Idot;stanbul province are generally medium-heavy and heavy textured, medium alkaline and neutral pH, without salinity problems, 50% of them have very low CaCO3 content and the rest are calcareous soils with varying levels of CaCO3. It was determined that the high CaCO3 content in 11% of the soils was due to the rendzina great soil group formed on marl parent material. In terms of organic matter, 59% were classified as low, 26% as moderate, 50% as high and very high in terms of available phosphorus, and 79% as high and very high in terms of extractable potassium. After the classification of all analyzed parameters, the distribution maps of a parameter were created by using Geographical Information Systems (GIS). IDW, which is an inverse distance weighting method widely used in soil science, was used to create the distribution maps.
Determination Yield and Yield Components of Some Important Clover (Trifolium spp.) Species Collected from Thrace Region Flora
(Univ Namik Kemal, 2024) Duman, Emre Ibrahim; Orak, Adnan
This research was conducted under Tekirda & gbreve; conditions in the trial and application field of Tekirda & gbreve; Nam & imath;k Kemal University Faculty of Agriculture Field Crops Department for a two-year period in the 2020-2021 years. Different clover species collected were used as material in the study carried out within the framework of the TUBITAK (119 O 950) project titled Taxonomy, Distribution, Phenological, Morphological and Some Chemical Characteristics of Clover ( Trifolium L.-Fabaceae) Species in the Natural Flora of the Thrace Region. Plant height, stem diameter, number of head per plant, fresh forage yield and hay yield per plant were evaluated in the first year for 6 different species ( T. repens, T. nigrescens, T. constantinopolitanum, T. pratense, T. striatum and T. lappaceum). 32 different genotypes were used as material. In the second year, clover genotypes were planted according to the randomized block design with three replications to different parts of the trial area. At least five plants of each type, 8 plants with roots were transplanted on 04.08.2021 in 3 m long parcels prepared in factorial order, 75x75cm. Irrigation was done after planting with a drip irrigation system. Irrigation was continued during the 6-month period between April and September when the plants needed it. In the evaluation made in the first year of the research, the lowest and highest data were determined as 9.00-64.67 cm in plant height, 0.47-2.57 mm in stem diameter, number of flower structure per plant 6.33-67.67, fresh forage yield per plant 19.70-624.00 g, dry forage yield per plant 3.37-138.36g. Clover genotypes were transplanted with three replications in the second year of the research, limit values of clover sp. characters were determined individually. The plant height was determined as 9.77-24.78 cm, the stem diameter was 0.50-1.82 mm, number of flower structure per plant was 12.40-145.17 units, fresh forage yield per plant was 85.77-2006.50 g, and dry forage yield per plant changed between was 39.90-555.56 g. According to the results of chemical analysis of genotypes of clover species harvested during the 50% flowering period; Crude protein ratio varied between 11.87-18.85%, crude cellulose ratio 20.80-28.33%, crude ash ratio 6.95-10.37%, ADF 31.07-42.78% and NDF was determined as 42.58-55.69%.
Loss of Wwox contributes to cisplatin resistance in triple-negative breast cancer cells by modulating miR-182 and miR-214
(Tubitak Scientific & Technological Research Council Turkey, 2024) Batar, Bahadir; Serdal, Elif; Erdal, Berna; Ogul, Hasan
Background/aim: WW domain-containing oxidoreductase (WWOX) loss frequently occurs in triple-negative breast cancer (TNBC). WWOX loss enhances cisplatin resistance in TNBC patients. Although WWOX loss has an effect on the selection of a DNA repair pathway that contributes to enhanced mutagenesis, the downstream expression changes in resistant cancer cells have not been fully explored. This study aimed to investigate the potential role of microRNAs (miRNAs) in the regulation of cisplatin resistance in WWOX- deficient TNBC cells. Materials , methods: Transient transfections were performed to overexpress WWOX in MDA-MB-231 cells. WWOX-overexpressing MDA-MB-231 cells were determined by western blot. Expression profiling of the miRNA was assessed via real-time polymerase chain reaction. Results: miRNA expression profiling of WWOX-deficient and-sufficient MDA-MB-231 cells revealed that miR-182 upregulation and miR-214 downregulation were markedly positively associated with cisplatin resistance of WWOX-deficient MDA-MB-231 cells. An elevated expression of miR-182 and decreased expression of miR-214 may contribute to cisplatin resistance in WWOX-absent MDA- MB-231 cells by signaling pathway dysregulation of DNA repair/apoptosis/ protein kinase B (AKT). Conclusion: The results emphasize that WWOX deficiency promotes resistance to cisplatin in TNBC cells and the possible predicting biomarker of WWOX for resistance to cisplatin.
A Study on Improving First Year Nursing Students' Problem Solving Skills and Perception Nursing Diagnosis Levels
(Inonu University, 2024) Özdemir Aydin, Gülsün; Yilmaz Coşkun, Ela
This study was planned to determine the effect of case studies used in teaching the nursing process nursing on the problem-solving skills and perception levels of nursing diagnoses of first-year nursing students. This research, which was planned as a pre-test post-test interventional study, was conducted with 133 first-year nursing students. Before starting the group case studies “Student Information Form, Nursing Diagnosis Perception Scale, and Problem Solving Inventory” were applied to the students. After group case studies were conducted with the students for five weeks, the same scales were applied again and the post-test was completed. According to the pre-test results, the students' total mean score of perception of nursing diagnoses was 2.77±0.61, while it was 2.39±0.46 in the post-test. The problem solving skill mean scores were 105.73±18.65 in the pre-test and 108.12±18.26 in the post-test. Their perception of nursing diagnoses improved positively after the case studies, while a statistically significant difference was found between the pre-test and post-test mean scores, but no difference was found between the problem-solving skill scores. In this research; although nursing diagnosis perceptions have improved, problem solving skills have not improved at the desired level. In this context, it may be recommended to increase the number of case studies, repeat case studies before and after clinical practice, use of standardized/simulated patients and try interactive teaching methods such as simulation. © 2024, Inonu University. All rights reserved.
Lacunary Statistically Convergence via Modulus Function Sequences
(Murat TOSUN, 2024) Bayram, Erdal; Bektaş, Çiğdem A.
Modifying the definition of density functions is one method used to generalise statistical convergence. In the present study, we use sequences of modulus functions and order α ∈ (0, 1] to introduce a new density. Based on this density framework, we define strong (fk)-lacunary summability of order α and (fk)-lacunary statistical convergence of order α for a sequence of modulus functions (fk). This concept holds an intermediate position between the usual convergence and the statistical convergence for lacunary sequences. We also establish inclusion theorems and relations between these two concepts in the study. © 2024, Murat TOSUN. All rights reserved.
Characterization and Lidocaine Release Behavior of Chitosan/ Sodium Alginate/ Clinoptiolite Nanocomposite Hydrogel
(Turkish Chemical Society, 2024) Sözkes, Sarkis; Taşdelen, Betül; Erdoğan, Sevil; Gülenç, Nadide Gülşah; Koruyucu, Aslıhan
In this study, the novel nanocomposites were prepared from the natural biopolymers, chitosan (CS), sodium alginate (SA) and clinoptiolite (CL) particles, and also having glutaraldehyde as a crosslinker by cryogelation technique. CS biopolymer was produced from crayfish Astacus leptodactylus Eschscholtz, 1823. Characterization of the prepared CS, CS-co-SA (CS/SA) and drug loaded CS/SA/ CL nanocomposite were performed by Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM) analyses. The anesthetic drug release behavior of the prepared nanocomposite was investigated for the model drug lidocaine (LD) using UV-Vis spectrophotometry and High Performance Liquid Chromatography (HPLC) techniques. The effect of different LD and CL content on the drug release behavior of the prepared nanocomposite were studied. LD release data was fitted to various kinetic models to study the drug release behavior. The LD release from all the prepared nanocomposite hydrogels fitted zero-order, first-order, Higuchi, and Korsmeyer-Peppas models. The swelling and drug release properties of the new CS-based nanocomposite hydrogels were improved with the inclusion of SA and CL in the gel structure. © 2024, Turkish Chemical Society. All rights reserved.
Üçüncü Sinema Estetiği ve Yavuz Özkan Filmlerindeki Görünümü
(2023) Cantaş, Azime; Koluaçık, İhsan
1960’lı yıllardan itibaren özellikle başta Latin Amerika olmak üzere üçüncü dünya ülkelerinde görülmeye başlayan üçüncü sinema akımı hem estetik hem de tematik anlamda Amerikan ya da Hollywood sineması olarak da adlandırılan birinci sinemadan ve auteur ya da sanat sineması olarak da ifade edilen ikinci sinemadan ayrışmaktadır. Temelinde politik bir tavrı benimseyen üçüncü sinemacılar toplumsal değişimin bir parçası olarak sinemanın ideolojik işlevinin ön plana çıkmasını önemserler ve sinemayı adeta bir silah olarak kullanırlar. Türk sineması içinde 1960’lı yıllarda başlayan toplumcu yaklaşım 1970’li yılların ortasından itibaren yeni sinemacı kuşağının ortaya çıkışıyla Türk sinemasında üçüncü sinemanın etkin olmasının önünü açmıştır. Başta Yılmaz Güney olmak üzere Şerif Gören, Zeki Ökten, Erden Kıral, Yavuz Özkan gibi yönetmenler 1960’ların sonundan itibaren ortaya çıkan Devrimci sinema geleneğinin parçası olmakla birlikte sinemanın politik diline vurgu yapmışlar ve bu çerçevede filmler üretmişlerdir. Ancak bu sinemacılar arasında üçüncü sinema diline en çok yaklaşabilen Yavuz Özkan olmuştur. Özkan, sinemanın ideolojik işlevini toplumsal dönüşümün bir parçasına dönüştürerek izleyicilerin aktif katılımını amaçlamış ve onların bilinçlenmesine katkı sağlamıştır. Bu kapsamda çalışma, Yavuz Özkan’ın 1980 öncesi çekmiş olduğu filmlerdeki politik unsurları ideolojik eleştiri yöntemi ile açığa çıkarmayı hedeflemektedir. Özkan’ın ilk filmi Maden (1978) ve sonrasında çektiği ikinci filmi Demir Yol (1979) ile sinema dilinde politik unsurlar kendisini göstermiş ve sınıf temelli yaklaşımı ile dönemin en önemli yapıtları ve üçüncü sinemanın Türk sinemasındaki en önemli filmleri olduğu tespit edilmiştir.
Effects of Different Boron Doses on Germination, Seedling Growth and Relative Water Content of Linseed (Linum usitatissimum L.)
(2023) Culpan, Emrullah; Gürsoy, Mehtap
Boron is one of the most important nutrients required for the growth and development of plants. However, boron deficiency or excess also affects the physiological development of plants such as germination and seedling development. In this study, the effects of boron applications of 0-8 ml L-1 (4 concentrations) in 2 linseed cultivars [Beyaz Gelin (C1) and Sarı Dane (C2)] were investigated under laboratory conditions. In the study; germination percentage (GP), mean germination time (MGT), seeding length (SL), root length (RL), seedling fresh weight (SFW), seedling dry weight (SDW), root fresh weight (RFW), root dry weight (RDW) and relative water content (RWC) parameters were examined. As a result of the study, it has been determined that there are decreases in the properties of the cultivars in terms of the parameters examined with boron applications. It has been determined that especially 8 mg L-1 application has a toxic effect and prevents seedling and root development.
Trakya Bölgesi Doğal Florasındaki Üçgül (Trifolium L.-Fabaceae) Türlerinin Taksonomisi, Dağılımı, Fenolojik, Morfolojik Ve Bazı Kimyasal Özellikleri
(2023) Orak, Adnan; Ersoy, Hüseyin; Dayan, Sergun; Nizam, Ilker; Ateş, Ertan; Şen, Canan; Güler, Necmettin
Bu araştırmada Tekirdağ koşullarında Tekirdağ Namık Kemal Üniversitesi Ziraat Fakültesi Tarla Bitkileri Bölümü deneme ve uygulama arazisinde, 2021-2022 döneminde, 2020 yılında 119 O 950 Trakya Bölgesi Doğal Florasındaki Üçgül (Trifolium L.-Fabaceae) Türlerinin Taksonomisi, Dağılımı, Fenolojik, Morfolojik ve Bazı Kimyasal Özellikleri isimli proje çerçevesinde yürütülen çalışmadan seçilen 7 farklı türe ait (T. repens, T. nigrescens, T. constantinopolitanum, T. pratense, T. striatum ve T. lappaceum ve teşhis edilemeyen Trifolium L.) 37 farklı genotip materyal olarak kullanılmıştır. Arazinin farklı bölümüne şaşırtılan genotipler, Tesadüf Blokları deneme deseninde; faktöriyel düzende hazırlanan 3 m uzunluğundaki parsellere 75x75cm olarak her türden en az 5 bitki olacak şekilde, köklü olarak dikilmeleri 04.08.2021 tarihinde yapılmıştır. Damla sulama sistemi ile dikim sonrası sulama yapılmıştır. Bitkilerin ihtiyaç duyduğu Nisan-Eylül ayları arasında 6 aylık periyotla sulamaya devam edilmiştir. Araştırma sonuçlarına göre, üçgül türlerinde; bitki boyu, sap çapı, yaprakçık eni, yaprakçık boyu, kömeç sayısı, yeşil ot ağırlığı, kuru ot ağırlığı verileri içerisinde; bitki boyu ile yeşil ot ve kuru ot verileri değerlendirildiğinde en yüksek bitki boyunun 36,70cm ile Trifolium L. olarak kaydedilen ancak türü teşhis edilemeyen EDİRNE genotipinde, en kısa boy ise T. nigrescens Viv. Türüne ait 97/59 no?lu genotipte saptanmıştır. En yüksek yeşil ot verimi 501,63g ile T. repens türüne ait 148/T-1 no?lu genotipte, en düşük ise 4,00g ile T. nigrescens?e ait 97/59 no?lu genotipte saptanmıştır. En yüksek kuru ot verimi ise 138,89g ile T. repens türüne ait 148/T-1 no?lu genotipte, en düşük kuru ot verimi ise 8,66g ile T. pratense türüne ait 20H05 no?lu genotipte bulunmuştur. %50 çiçeklenme döneminde biçilen üçgül türlerine ait genotiplerde kimyasal analiz sonuçlarına göre; ham protein oranı %10.47-23.69, ham selüloz oranı %20,60-31,48, ham kül oranı %5,89-11,74, ADF %26,22-45,23, NDF %36,75-60,96 arasında değişmiştir.
İklim Değişikliği Kaynaklı Çoklu Stres Koşullarına Akdeniz Sebze Türlerinin Adaptasyonu
(2023) Tüzel, Yüksel; Tepecik, Mahmut; Kayikcioglu, Huseyin Hüsnü; Deveci, Murat; Kaygısız Aşçıoğul, Tansel; Gölgen Öztekin, Bahar; Tüzel, İsmail Hakkı
Bu projede yerel domates genotiplerinin kontrollü koşullarda ve serada sıcaklığın yüksek olduğu dönemde kuraklık stresine tepkilerinin belirlenmesi, yerel genotiplerin morfolojik özelliklerinin ve genotipler arasında genetik akrabalığın moleküler işaretleyiciler kullanarak belirlenmesi, topraktaki mikrobiyal toplulukların çoklu stres koşullarında değişimlerinin saptanması, toprak iyileştiricilerinin toprağın mikrobiyal yüküne çoklu stres altında etkisinin belirlenmesi, yüksek sıcaklıkta kuraklık stresi altında performansı yüksek genotipler için sulama ve toprak yönetimine yönelik stratejilerin geliştirilmesi amaçlanmıştır. 2019-2022 yılları arasında yürütülen projedeki ilk denemede serada (Ege Üniversitesi, İzmir) ve iklim odasında (Namık Kemal Üniversitesi, Tekirdağ) domates genotipleri kuraklık stresine karşı taranmış; ikinci denemede serada (Ege Üniversitesi, İzmir) yerel genotiplerle topraklı ve topraksız tarımda, Akdeniz Havzası?ndan seçilmiş genotiplerle topraksız tarımda 3 deneme yürütülmüş; üçüncü denemede (Ege Üniversitesi, İzmir) domates genotiplerinin morfolojik ve moleküler karakterizasyonu yapılmış; serada yürütülen (Ege Üniversitesi, İzmir) dördüncü denemede toprak düzenleyicilerinin (vermikompost ve biyokömür) kullanım etkinliği araştırılmıştır. Araştırmada kuraklık stresinin ifadesinde önemli olan bazı morfolojik (zarar skalası, bitki boyu, gövde çapı, kök yaş ve kuru ağırlığı, yeşil aksam yaş ve kuru ağırlığı) ve fizyolojik (stoma iletkenliği, yaprak oransal su içeriği, membran geçirgenliği) ölçümler dikkate alındığında, morfolojik ve fizyolojik parametrelerin genotiplere göre farklılık gösterdiği, bu parametrelerin çoğunda performansı yüksek bazı genotiplerin kuraklık stresine karşı ümitvar olabileceği ve sonraki çalışmalarda ıslah materyali olarak değerlendirilebileceği sonucuna varılmıştır. Bu genotiplerin morfolojik ve moleküler karakterizasyonu yapılmıştır. Yerel ve Akdeniz Havzası?ndan temin edilmiş seçilmiş domates genotipler topraklı ve topraksız tarım koşullarında Tam Sulama (S0), Kısıt 1 (S1) ve Kısıt 2 (S2) konuları altında yetiştirilmiş, bitkide kuraklık stresine neden olan su kısıtı uygulamasının toplam ve pazarlanabilir verim değerleri ile bitki gelişim ve biyokütle değerlerini azalttığı, ölçülen bazı kalite parametrelerini arttırdığı, su kullanım etkinliğini azalttığı, bitki fizyolojik ölçümlerinde ortam koşullarına ve genotipik farklılıklara bağlı olarak değişken sonuçlar alındığı belirlenmiştir. Seçilmiş domates genotiplerinin su kısıtı altında yetiştiriciliğinde toprak düzenleyici olarak vermikompost (solucan gübresi) ve biyokömür olmak üzere iki farklı organik materyal kullanılmış ve elde edilen sonuçlar yüksek sıcaklıkta su kısıtının olumsuz etkilerini azaltmak için toprak düzenleyicilerin kullanılabileceği, verim parametrelerine göre sulama suyu miktarının %40 oranında azaltılabileceği, stabil C içeriğine sahip biochar ve vermikompost gibi organik katkı maddelerinin toprak mikrobiyal parametrelerini artırdığı, 10 ton/ha seviyesinde uygulanan vermikompost ve biochar'ın su stresi ve yüksek sıcaklıkta topraktaki mikrobiyal aktiviteyi destekleyebildiği, biochar uygulamasının toprak nemi düştüğünde daha fazla katkı sağladığı sonucuna varılmıştır.
Investigation of the Properties of Foam Concrete Produced Using Liquid Latex
(2024) Gökçe, Murat; Toklu, Kenan
Foam concrete, a type of lightweight concrete, is highly preferred due to its lightness and ease of application. In addition, substitute materials are used in the foam concrete mixture in order to further improve the properties of foam concrete. In this study, the engineering properties of foam concrete produced using liquid latex were analyzed. For this purpose, liquid latex was added to the mixing water in this study. The amount of latex is fixed at 25% of the cement weight. Additionally, the amount of liquid latex added to the mixture was reduced to equal the amount of mixing water. According to the results, it was seen that liquid latex made positive contributions to the engineering properties of the produced foam concrete. It was observed that the water absorption value of latex-added samples decreased by 59% compared to the reference sample. In addition, the thermal conductivity coefficient of the samples with latex added was lower than the reference sample. In the microstructural analysis, it was seen that the pores were more homogeneous than the reference sample and no cracks occurred. Finally, the long chain bonds formed by liquid latex in concrete were first determined by SEM image analysis.
İbrahim Kamil, Soğuk Savaş Döneminde Yugoslavya: Siyaset, Ekonomi, Dış Politika (1945-1990)
(2024) Derin, Murat
İbrahim Kamil'in editörlüğünde hazırlanan ve ülkemizin değerli araştırmacılarının bölümleriyle katkı sunduğu \"Soğuk Savaş Sonrasında Balkanlar (1990-2015)\" isimli çalışma, 2017 yılında yayınlanmıştı. Bu kitabın ilk baskısının hızla tükenmesi ve 2021 yılında ikinci baskısının yapılması, Balkanlar'a olan ilginin ülkemizde ne kadar yüksek olduğunun bir göstergesidir. Soğuk Savaş Dönemi'nin söz konusu çalışmada yeterince ele alınmaması, İbrahim Kamil'i yeni bir araştırma yapmaya teşvik etmiştir. Bu doğrultuda, Yugoslavya'nın tarihsel gelişimini ayrıntılı bir şekilde ele alarak, ülkenin siyasi, ekonomik ve dış politika dinamiklerini derinlemesine incelediği \"Soğuk Savaş Döneminde Yugoslavya: Siyaset, Ekonomi, Dış Politika (1945-1990)\" başlıklı çalışması, 2023 tarihinde Kriter Yayınevi'nde basılarak okuyucuyla buluşturulmuştur.
Güngör Karauğuz, Hz. Nuh, Hz. İbrahim ve Hz. Lut Bağlamında Kur’an Arkeolojisi -Bir Yöntem Teklifi-
(2024) Temiztürk, Halil; Büyük, Enes
Dinler tarihi araştırmalarına katkı sağlayan bilim dallarının başında arkeoloji gelmektedir. Özellikle kutsal metinlerin ihtiva ettiği tarihî, coğrafî ve antropolojik bilgilerin bilimsel kanıtları üzerinde duran ve bu bilgileri yüzey araştırmaları, kazı çalışmaları ve diğer verilerle test etmeye odaklanan arkeolojinin, dinî araştırmalar için sağladığı katkı yadsınamazdır. Batı’da “biblical archaeology” adı altında başlayan çalışmaların temel amacı Kitâb-ı Mukaddes bilgilerinin sınanmasına yönelik olsa da, bu sınanmanın Kitâb-ı Mukaddes’i doğrulama adına manipülatif bir şekilde kullanıldığı veya İsrail Devleti’nin yaptığı gibi Masada Kalesi ve Ölüdeniz yazmaları gibi araştırmaların millî/dinî kimlikleri öne çıkaracak şekilde siyasî amaçlarla işlenildiği örnekler bilinmektedir. Bu taraflı ve indirgemeci sonuçlarına rağmen arkeolojinin dinî araştırmalar için önemi ortadadır, ancak Batı’da farklı disiplinlerin ortak çalışmalarına nazaran ülkemizde arkeolog ve din araştırmacılarının disiplinler arası çalışmaları henüz istenen seviyeye gelememiştir. Bu şartlar göz önüne alındığında Güngör Karauğuz’un Batı’da ve ülkemizde arkeolojiye yönelik bakışı ele aldığı çalışması önem arzetmektedir.
The Relationship Between Economic Development, Banking Sector Performance and Financial Globalization: Evidence from OECD Countries
(2024) Sarıgül, Sevgi Sümerli; Avcı, Pınar
The aim of this study is to examine the relationship between the economic development of the 11 OECD countries selected in the period 1990-2018, banking sector performance and financial globalization by integrating investments and trade openness as explanatory variables. The cointegration between variables is investigated by Pedroni, Kao and Westerlund tests and the long-term coefficients are determined by Driscoll-Kraay standard errors forecasters. Finally, the causality relationship between variables is tested in the Dumitrescu-Hurlin panel bootstrap approach. Empirical findings indicate the existence of cointegration between variables. The banking sector performance, financial globalization and investments have a statistically significant positive effect on economic development, while the trade openness has a meaninglessly positive effect. They also indicate a two-way causality between the economic development and banking sector performance and investments, and a one-way causality running from trade openness to economic development. Therefore, the findings make political recommendations for both policymakers and future studies.
Derin Öğrenme Destekli Gerçek Zamanlı Zeytin Tespiti Uygulaması
(2024) Kahya, Erhan; Aslan, Yasin
Ürün verim tahmini, ürün hasadı ve pazarlama stratejilerinin oluşturulması için çok önemli bir rol oynamaktadır. Son yıllarda, birçok tarımsal üründe verimi tahmin etmek için bilgisayarla görme ve derin öğrenme teknikleri çalışmaları yapılmaktadır. Ürünlerin dal üzerinden tam olarak ayrılması ürün verim tahminini doğrudan etkilemektedir. Bu çalışmada ağaç üzerinde ürünlerin yerlerini tespit ederek ürün verim tahminini kolaylaştıracak derin öğrenme modeli gerçekleştirilmiştir. Materyal olarak zeytin seçilmiştir. Derin öğrenme tabanlı zeytin tespiti yapılmıştır. Modelin algoritması, zeytin tespiti için olive adlı nesne sınıfından oluşmaktadır. Eğitim ve test omurgası YOLOv5 (nano-small-medium ve large) modelleridir. Oluşturan modellerin tüm metrik değerleri incelenmiştir. En başarılı model YOLOv5s algoritmasıyla, 640x640 boyutundaki görsellerin 15 Batch, 115 Epoch ile eğitilmiş model olduğu görülmüştür. Model değerleri sonuçları “metrics/precision”, “metrics/recall”, “metrics/mAP_0,5” ve “metrics/ mAP_ 0,5:0,95” olarak incelenmiştir. “YOLOv5 small” modelinin metrik verilerinin diğer modellerle kıyaslandığında daha yüksek olduğu tespit edilmiştir. Başarı oranı 115 epoch için F1 score %85,18, precision %95,63, recall %84,24, mAP %72,8’dir. Buradan “Model 2”nin robotik zeytin hasadında zeytinin toplanmasında kullanılacak en iyi tespit modeli olduğu anlaşılmıştır.

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