Sürdürülebilir Kalkınma Amaçları

Yazarlar

  • MakaleYayıncıda açık erişim2020Scopus SJRQ4
    Bioremediation of fluazifop-p-butyl herbicide by some soil bacteria isolated from various regions of Turkey in an artificial agricultural field

    Erguven, Gokhan Onder; Nuhoglu, Yasar

    The bioremediation rate of fluazifop-p-butyl (C19H20F3NO4) was monitored. Bacteria were isolated in agricultural soil samples. Fifteen sterilised glass jars were inoculated with 2, 5, 10, 20 cm3 of a homogenised bacterial mixture (109 CFU/cm3), then sterile agricultural soil and 60 µg of fluazifop-p-butyl (in liquid form) were added to each jar. Each week, filtrated water drained from bottles was analysed for fluazifop-p-butyl concentration, chemical oxygen demand (COD), biochemical oxygen demand (BOD5) and total organic carbon (TOC). Additionally, pH and dissolved oxygen concentration were monitored. The highest biodegradation rate was observed in the soil sample containing 20 cm3 of the culture media. In this media, fluazifop-p-butyl, COD, BOD5 and TOC removals were measured as 91, 83, 96 and 86%, respectively, at the end of the 2 months. The DO level was measured between 3 and 6 mg O2/dm3 in the first month for all cultures. An increase of pH was recorded during the first month and after this time a pH decrease was noted.

    • SDG 2 · Açlığa Son
    • SDG 6 · Temiz Su ve Sanitasyon
    • SDG 12 · Sorumlu Üretim ve Tüketim
    • SDG 15 · Karasal Yaşam
    AtıfScopus5WoS5OpenAlex4
    ScopusWeb of Scienceİncele
  • MakaleAçık Erişim2020Scopus SJRQ3
    Geochemical, stable (O, c, and b) and radiogenic (sr, nd, pb) isotopic data from the eskişehir-kızılcaören (nw-anatolia) and the malatya-kuluncak (e-central anatolia) f-ree-th deposits, Turkey: Implications for nature of carbonate-hosted mineralization

    Çimen, Okay; Corcoran, Loretta; Kuebler, Corinne; Simonetti, Stefanie S.; Simonetti, Antonio

    In Turkey, the largest fluorine (F)-rare earth element (REE)-thorium (Th) deposits are located within the Eskişehir-Kızılcaören (north-western Anatolia) and the Malatya-Kuluncak (east-central Anatolia) regions, and these are associated with Oligocene extensional alkaline volcanic and Late Cretecaous-Early Paleocene postcollisional intrusive rocks, respectively. In the Kızılcaören region, the basement units include the Triassic Karakaya Complex and the Late Cretaceous oceanic units (Neotethyan suture) that are cut and overlain by phonolite and carbonatite intrusions and lava flows. In the Kuluncak region, the plutonic rocks are mainly composed of syenite, quartz syenite, and rare monzonite, and these cut the late-Cretaceous Karapınar limestone, which hosts the F-REE-Th mineralization in contact zones. A carbonatite sample from the Kızılcaören region displays both a total rare earth element (TREE) concentration (4795 ppm) and δ11B (–6.83‰) isotope composition consistent with mantle-derived carbonatite; whereas it is characterized by heavier δ13C (+1.43‰) and δ18O (+20.23‰) isotope signatures compared to those for carbonatites worldwide. In contrast, the carbonates which host the F-REE-Th mineralization in the Kuluncak region are characterized by lower TREE concentrations (5.13 to 55.88 ppm), and heavier δ13C (–0.14 to –0.75‰), δ18O (+27.36 to +30.61‰), and δ11B (+5.38 to +6.89‰) isotope ratios compared to mantle-derived carbonatites. Moreover, the combined initial87Sr/86Sr (0.70584 to 0.70759) and143Nd/144Nd (0.512238 to 0.512571) isotope ratios for samples investigated here are distinct and much more radiogenic compared to those for carbonatites worldwide, and therefore indicate significant crustal input and/or hydrothermal metasomatic-related alteration. Overall, stable and radiogenic isotope data suggest that the host carbonate rocks for the F-REE-Th mineralization in both the Kızılcaören and the Kuluncak regions consist of hydrothermally metasomatized carbonatite and limestone, respectively. The mineralization in the Kızılcaören region may potentially be related to carbonatite magmatism, whereas the mineralization in the Kuluncak region, which most likely formed through interactions between the plutonic rocks and surrounding limestone at contact metamorphism zone, involved hydrothermal/magmatic fluids associated with extensive postcollisional magmatism.

    AtıfScopus15WoS14OpenAlex18
    ScopusWeb of Scienceİncele
  • MakaleYalnız künye2020Scopus SJRQ3
    Investigation of the Effect of Operating Conditions Change on Water Hammer in Hydroelectric Power Plants

    Kahraman, Gökhan

    Renewable energy sources do not harm the environment, and they contribute greatly to national economies. Hydraulic energy is the leading renewable energy source. Hydraulic energy is used more widely than other renewable energy sources around the world. This situation of hydraulic energy makes it important to solve the faults in hydraulic turbine-generator units. In this study, water hammer impacts have been investigated. This issue is important and can be dangerous in hydroelectric power plants. As a result of the research, the optimum sudden shutdown time of the adjusting wings in the snail is determined by considering the different operating conditions of a hydroelectric power plant. When the turbine-generator units are operated according to the specified instantaneous shutdown time, they will be protected against the impact of the water hammer pressure and the turbine shaft overspeed. Thus, they will be operated with less risk.

    • SDG 7 · Erişilebilir ve Temiz Enerji
    • SDG 9 · Sanayi, Yenilikçilik ve Altyapı
    AtıfScopus9WoS8OpenAlex8
    ScopusWeb of Scienceİncele
  • MakaleYalnız künye2020Scopus SJRQ1
    In-situ synthesis of 3D printable mono- and Bi-metallic (Cu/Ag) nanoparticles embedded polymeric structures with enhanced electromechanical properties

    Aktitiz, İsmail; Varol, Remzi; Akkurt, Nevzat; Saraç, Mehmet Fahri

    The interest of additive manufacturing with 3D printing increases day by day, which provides improved mechanical, electrical, magnetic and thermal properties of 3D parts. The production of 3D parts with the stereolithography (SLA) method, which allows it to be produced with high precision, resolution and complex geometries, distinguishes itself from other alternative additive manufacturing methods (FDM. SLS. LOM. LMD etc.). However, studies on the preparation of functional 3D polymer nanocomposites with the SLA method are quite limited. This study aims to produce silver (Ag) and/or copper (Cu) based 3D polymer nanocomposites for enhancing its mechanical strength, thermal stability and electrical conductivity. Mono and bimetallic (Cu/Ag) nanoparticles have been in-situ synthesized by selective irradiation of laser beam method using a commercial SLA device. In this method, metal (Cu/Ag) acrylate containing photocurable resin is not only cured but also leads to thermal decomposition of metal ions into nanoparticles to form functional 3D structures. The mechanical, electrical and thermal properties of polymer nanocomposites are characterized in detail. As a result of the analysis, the nanoparticles, with an average diameter of 25–55 nm, are well dispersed in the polymer matrix without agglomeration. The temperature at which 5% weight loss of Ag and Cu based polymer structures is measured as 179.3 °C while the glass transition temperature is found to be 223.81 °C. Most importantly, the resistance values are significantly decreased from 456.62 GΩ (Gigaohm) to 1.50 GΩ by increasing the amount of Ag addition at 3D polymeric structures. Therefore, this study allows the production of polymer nanocomposites not only in complex structures but also in desired properties especially for electrically conductive materials, capacitors and electronic applications.

    • SDG 9 · Sanayi, Yenilikçilik ve Altyapı
    AtıfScopus32WoS24OpenAlex33
    ScopusWeb of Scienceİncele
  • MakaleYalnız künye2020Scopus SJRQ1
    Evaluating occupational health and safety service quality by SERVQUAL: a field survey study

    Demir, Pelin; Gul, Muhammet; Guneri, Ali Fuat

    The adverse impact of occupational accidents and occupational diseases on the society have recently increased a lot since the industrial-oriented society is getting more and more widespread. Although attempts regarding occupational health and safety (OHS) increase in Turkey, they are still at an inadequate level. OHS experts prepare employees for a healthy and safer working environment, so that work accidents can be eliminated and employees can be healthy psychologically and physically. At the same time, the worksites can be prevented from being financially damaged and productivity can be improved. The aim of this study is to measure OHS service quality by the evaluations of OHS experts from various sectors and workplaces. In this way, the OHS performance is measured, the difference between perceptions and expectations of the OHS experts is determined and deficiencies are revealed. In the study, the OHS activities are examined in five dimensions using the SERVQUAL scale; tangibility, reliability, responsiveness, assurance and empathy. The questionnaire is carried out using a Likert-type five-point scale among 81 OHS experts from different sectors. In conclusion, SERVQUAL analysis is introduced as a useful tool for employers to better understand what they need to know about OHS services.

    • SDG 3 · Sağlık ve Kaliteli Yaşam
    • SDG 8 · İnsana Yakışır İş ve Ekonomik Büyüme
    AtıfScopus20WoS15OpenAlex26
    ScopusWeb of Scienceİncele
  • MakaleYalnız künye2020Scopus SJRQ3
    A study of endohelminthes in some fish species caught between Kumlutarla-Gemici regions of Karakaya Dam Lake

    Gun, A.; Dorucu, M.

    AtıfScopus2WoS2
    ScopusWeb of Scienceİncele
  • MakaleYalnız künye2019
    Codas ve entropi yöntemleri ile yenilenebilir enerji kaynaklarının düzey 1 bölgelerine göre incelenmesi

    Arsu, Talip; Aycin, Ejder

    Dünya’daki enerji üretimi ağırlıklı olarak fosil kaynaklı yakıtlar kullanılarak gerçekleştirilmektedir. Fakat fosil kaynaklı yakıtlar doğada sınırsız olarak bulunmamasının yanı sıra ekolojik doğal dengeyi de olumsuz yönde etkilemektedir. Yenilenebilir Enerji Kaynakları (YEK) ise fosil yakıtlardan elde edilen enerjiye göre hem ekolojik hem de ekonomik anlamda büyük kazanımlar sağlamaktadır. Bu kazanımların farkına varan ülkeler enerji politikalarında YEK’lere daha fazla önem vermektedir. Türkiye gibi YEK’lere elverişli kaynaklara sahip ve gelişmekte olan ülkeler yenilenebilir enerjinin geleceğinde söz sahibi olmaya adaydırlar. Bu açıdan Türkiye gibi ülkelerin YEK performanslarına göre değerlendirmek gelecek için yararlı bilgiler sağlayacaktır. Fakat bu değerlendirmeyi yaparken Türkiye’yi bir bütün olarak ele almak yerine birbirinden farklı YEK potansiyellerine sahip bölgeler olarak ele almak daha yerinde olacaktır. Bu noktadan hareketle çalışmanın amacı Türkiye’deki Düzey 1 bölgelerinin YEK performanslarına göre değerlendirilmesi olarak belirlenmiştir. Bu amaçla Düzey 1 bölgeleri Entropi ve CODAS yöntemleri bütünleşik olarak kullanılarak incelenmiştir. Entropi yöntemi ile elde edilen sonuçlara göre en önemli kriterler sırasıyla, güneş enerjisi kurulu gücü/toplam kurulu güç, rüzgar enerjisi kurulu güç ve güneş enerjisi kurulu güç kriterleri olarak belirlenmiştir. CODAS yöntemi sonuçlarına göre, sırasıyla TR5- Batı Anadolu, TR3- Ege ve TR7-Orta Anadolu bölgeleri ilk üç sırada yer alırken, TRA- Kuzeydoğu Anadolu, TR1- İstanbul ve TR4- Doğu Marmara bölgeleri son üç sırada yer almıştır.

    AtıfTR Dizin15
    TR Dizinİncele
  • MakaleAçık Erişim2019
    Pendimethalin stresine maruz kalan aspir (Carthamus tinctorius L.)’de oluşan bazı biyokimyasal değişiklikler

    Beker Akbulut, Gülçin

    Pendimethalin herbisiti tarımsal uygulamalarda yabancı otların kontrolü için yaygın olarak kullanılmaktadır. Bununla birlikte, pendimethalinin kültür bitkileri üzerindeki yan etkisi tam olarak bilinmemektedir. Bu çalışmada, aspir (Carthamus tinctorius L.) bitkisine ait Dinçer ve Remzibey çeşitlerinde pendimethalin kaynaklı oksidatif stres araştırıldı. Herbisit uygun büyüklüğe (21 günlük) gelen bitkilerin yapraklarına toksisite denemeleri sonrasında belirlenen dozlarda (0.004-0.01 M) çimlenme sonrası olarak uygulandı. Uygulama gruplarında karotenoid, toplam klorofil, toplam karbohidrat, toplam fenolik ve lipid peroksidasyonunu gösteren malondialdehid (MDA) içeriğindeki değişimler saptandı. Dinçer (% 42.7) ve Remzibey (% 59) çeşitlerinde karotenoid içeriği kontrole kıyasla azalış gösterdi. Toplam klorofil içeriği Remzibey çeşidinde (% 56.8) Dinçer’e (% 41.4) göre daha yüksek bulundu. Toplam karbohidrat içeriği Dinçer çeşidinde (% 50) Remzibey çeşidine (% 46.1) kıyasla daha yüksek saptandı. Toplam fenolik içeriği Remzibey (% 48.3) ve Dinçer (% 46.7) çeşitlerinde artan saatlere bağlı olarak azalış gösterdi. MDA içeriği Remzibey çeşidinde (% 72) Dinçer çeşidine (% 70) göre daha yüksek saptandı. Bu çalışma, pendimethalinin kültür bitkisi olan aspire toksik etki oluşturduğunu göstermiştir. 

    • SDG 2 · Açlığa Son
    AtıfOpenAlex3TR Dizin3
    TR Dizinİncele
  • MakaleYalnız künye2019
    Green Supplier selection for plastic industry using integrated model based on Pythagorean fuzzy AHP and fuzzy TOPSIS

    Yucesan, Melih

    Purpose –Supply Chain Management (SCM) has emerged in recent years and is now increasing in popularity. It aims to reduce production costs, maximize earnings, improve customer relations, improve inventory management and increase customer satisfaction. Reducing total cost of procurement is one of the most important parameters in aligning the objectives of partners in a supply network.Design/methodology/approach – This paper proposed Pythagorean Fuzzy Analytic Hierarchy Process (PFAHP) and Fuzzy Technique for Order Preference by Similarity to Ideal Solution (FTOPSIS) integrated model for green supplier selection for plastic industry. In the first phase of the study, the parameters to be used in selecting suppliers are determined. Then, by making pairwise comparisons, the weights of these parameters are determined with PFAHP method. Finally, the supplier that is most suitable for 3 suppliers is determined using the FTOPSIS method.Findings – Among the criteria evaluated by 5 experts, the most important criteria, the parameters of the Inspection methods and management and organizations are determined as the most important parameters respectively. The supplier no. 3 has been identified as the most suitable supplier.Discussion –The case study is performed under a fuzzy environment to reduce uncertainty and vagueness, and linguistic variables parameterized by interval-valued Pythagorean and triangular fuzzy numbers are used. Through the case study, 8 main and 45 sub-criteria supplier selection evaluation criteria used to assess 3 suppliers by FTOPSIS. However, our study has some disadvantages and possible further work is recommended. Other possible different fuzzy sets can be used in the projected method.

    AtıfTR Dizin3
    TR Dizinİncele
  • MakaleAçık Erişim2019
    Metallographic Aspects Investigation of Penstock Materials in Hydroelectric Power Plants and Penstock Maintenance Methods

    Taşgın, Yahya; Kahraman, Gökhan

    Hydroelectric power plants are renewable energy sources and have little impact on the environment.Therefore, it is one of the most preferred energy sources in the world. In parallel with this situation, it isvery important that the hydroelectric power plants are maintained, their failures are prevented orpermanently removed. One of the most important parts of hydroelectric power plants is penstock pipes.Along with the snail part of the power plant, the penstock supplies the pressurized water to the turbinewheel for energy production. In the power plants that have been producing energy for many years, themaintenance and material properties of penstock are very important. In this study, one of the most importantequipment of hydroelectric power plants, pressurized water pipes (penstock) and chemical componentshave been examined in macro and micro structure and their maintenance is investigated. In themetallographic study on the samples taken from two different regions of the penstock pipe; the perliticstructure, which has a homogeneous distribution into the ferritic structure forming the matrix, is determinedand supported by analyzes. This study will help to ensure that all hydroelectric power plants operatesmoothly in terms of penstock.

    • SDG 7 · Erişilebilir ve Temiz Enerji
    AtıfOpenAlex2
    TR Dizinİncele
  • MakaleYalnız künye2019
    Return and volatility spillover between emerging stock markets and crude oil

    Demireli, Erhan; Gençyürek, Ahmet Galip

    Due to the free movement of capital and advancing technology, the interaction between markets increase day by day. While analysing markets; the interaction direct to companies, individual and institutional investors and policymakers to considering different markets as well as domestic news. One of the most important among these markets is the oil market. The oil market has significant impacts on macroeconomic indicators (inflation, interest rates and unemployment, etc.) and production costs, sales revenues and cash flows of firms. According to this, the aim of the study is to reveal the relationship between emerging stock markets and oil market. For this purpose, WTI crude oil price and MSCI Emerging Market Index were analysed by Moon and Yu (2010) approach in the period span from 2012 to 2018. As a result of the analysis ; there is a return spill over from crude oil markets to emerging stock markets. In case of opposite direction, volatility spill over was determined. The findings will contribute to the decision-making process of investors, policymaker and researchers for the analysed period.

    AtıfTR Dizin6
    TR Dizinİncele
  • MakaleAçık Erişim2019
    Production and Characterization of Carbon-Kevlar-Aramid Reinforced Layer Composites with VARTM Method

    Taşgın, Yahya; Sahin, Engin Sahin

    In this study, laminated composite materials are produced by Vacuum Assisted Resin Transfer Molding(VARTM) Method. Three different reinforcement materials (carbon, kevlar and aramid) are used in theproduction phase. Tensile test is applied to the samples after the production and in the light of SEM images;fractured surfaces of the samples and their results are evaluated.

  • MakaleYalnız künye2019
    The lodge of sarı saltık centered ın the karaca vıllage of tunceli-hozat and analysıs of a document about the lodge

    Kökel, Coşkun

    Khalifas of Haji Bektash Veli has priority and important place in the history of AleviBektashi belief. Dervishes, who were trained by Haji Bektash Veli and sent to different points of Anatolia and Balkan geographies to establish faith-dede lodges in 13th century. They have been the principal carrier and representative in the development of AleviBektashi belief in Eurasia. Sarı Saltık is one of the most important dervishes trained by Haji Bektash Veli. Sarı Saltık has been the most important organizer of the thought of Haji Bektash Veli since 13th century especially in Rumelia. Sarı Saltık, who also has a faith-dede lodge with his name in Karaca village of Tunceli-Hozat, is one of the important leaders of Alevi-Bektashi faith not only in Balkans but also in Anatolia. The lodge of Sarı Saltık has an activity area centered in Karaca village of Tunceli-Hozat and spreading to Eastern and Central Anatolia regions. The lodge of Sarı Saltık has been one of the most dynamic faith center of Alevi belief throughout the history in Tunceli region. Members of the lodge of Sarı Saltık, who are from Karaca, have maintained their position that is not only limited with religious mission but also active in the social and political environment in Tunceli region throughout the history. In this study, religious and historical information about the lodge of Sarı Saltık will be analyzed through an archive document that was given to dede family menbers of the lodge of Sarı Saltık, who were the residents of Karaca village of Tunceli-Hozat, by Ottoman Empire in the beginnings of 20th century and that shows the authority of nakîbü’leşrâf qaymaqam.

  • MakaleYalnız künye2019
    Şii jeopolitiğinde türkiye ile iran’ın güç mücadelesi

    Güneş, Ergin

    İran ve Türkiye arasındaki güç savaşı ve savaşın mezhepsel boyutunun ele alındığı bu çalışmadaaktörlerin bölgede izledikleri siyaset sonuçlarıyla birlikte ortaya konulacaktır. Soğuk Savaş’ın bitmesininardından, ABD’nin 1991 ve 2003 yıllarında gerçekleştirdiği Irak’a yönelik müdahaleler ve akabinde 2010’dabaşlayan Arap Baharı’ndan sonra Orta Doğu’da yeni dengeler oluştu. İran, bölgesel bir güç olarak Irak,Suriye ve bölgede özellikle Şiilik kozunu kullanarak etkinliğini arttırmaktadır. İran’ın hedeflediği “ŞiiHilali’nin” gerçekleşmesi durumunda ise Türkiye’nin Sünni-Arap dünyasıyla olan coğrafi bağı kopacaktır.Buna engel olmak ve bölgede nüfuzunu artırmak isteyen Türkiye Sünniliği ön plana çıkarmaktadır. Aynışekilde Sünni ve Şii azınlıklar da bulundukları ülkedeki güç dengesini kendi lehlerine değiştirmek amacıylaİran ya da Türkiye gibi bir dış gücün desteğini almak için mezhepsel farklılıklarını araçsallaştırmaktadırlar.Aktörlerinin İran ve Türkiye olarak ele alındığı güç oyununda mezhepler bir enstrüman olarak kullanılmaktave her aktör diğerinin güç kazanımını kendisinin güç kaybı olarak algılamaktadır.

    AtıfTR Dizin5
    TR Dizinİncele
  • MakaleYalnız künye2019
    Döviz Kurlarında Periyodik Dalgalanmalar

    Balibey, Mesut; Akdi, Yilmaz

    Bu çalışmada Türkiye ekonomisindeki 02.01.2013 ile 11.12.2018 dönemi günlük (5 işgünü) döviz kurlarındaki döngüler, periodogramlar yardımıyla belirlenmeye çalışılmıştır.Çalışmada günlük Türk lirası karşısında Dolar kapanış (Xt) ve Euro kapanış (Yt) değerleridikkate alınmıştır. Analizler sonucunda bu iki serinin de aynı periyodlarda hareket ettiğigözlenmiştir. Günlük döviz kurlarının durağanlığı standart birim kök testlerinin yanındaperiodogram tabanlı birim kök testi ile de sınanmış ve her iki serinin de birinci derecedenbütünleşik olduğu gözlenmiştir. Birinci derece fark serilerinde 4, 6 ve 7 günlük periyodlargözlenmiştir.

  • MakaleYalnız künye2019
    Genetic Diversity Analysis of Aydın/Turkey Dittrichia viscosa (L). Greuter (Asteraceae) Populations Using RAPD Markers

    Paksoy, Mehmet Yavuz; Sevindik, Emre; Uzun, Sefa

    In this study, we performed a genetic diversity using RAPD markers for some Dittrichia viscosa populations grown in the Aydın region of Turkey. Total genomic DNA isolation from the leaves of Dittrichia viscosa was performed using commercial kit. eight RAPD primers were used to determine genetic diversity among populations. Polymerase Chain Reaction (PCR) was performed with all DNA samples and primers with ability of scoreing band. PCR products were run in agarose gel and visualized under UV light. They scored as there were bands (1) and no bands (0) at all gel images and their files were created. A total of 50 characters were obtained from the primers. Phylogenetic relationships and genetic distances between the cultivars were calculated by using the PAUP* 4.0b10 analysis program. According to the PAUP data, the closest genetic distance was determined 0.20000 and between Central and İncirliova populations, the most distant genetic distance were determined 0.36842 between İncirliova and Koçarlı populations. In the phylogenetic analysis has been obtained using UPGMA algorithms and phylogenetic tree consist of two clades. The results also propose that RAPD markers are useful tools for indicating genetic relationships among Dittrichia viscosa populations.

    • SDG 2 · Açlığa Son
  • MakaleAçık Erişim2019
    Assessment of Biomarkers of Oxidative Stress and Antioxidant in Wild and Farmed Çoruh trout (Salmo coruhensis) Spermatozoa

    Benzer, Fulya; Erişir, Mine; Kocabaş, Mehmet; Kutluyer Kocabaş, Filiz

    Behaviour and physiology in fish are affected from environmental factors. Particularly, habitat and culture environment in aquatic animals are essential for life stages. In this study, biomarkers of oxidative stress and antioxidant were compared in wild and farmed Çoruh trout (Salmo coruhensis) spermatozoa. In spermatozoa of Çoruh trout, lipid peroxidation (malondialdehyde), glutathione and enzymatic antioxidant activities (catalase, superoxide dismutase, glutathione peroxidase) were assessed. Our data demonstrated that superoxide dismutase (0.44±1.25 Umg-1 protein), catalase (15.21±4.69 k.g-1 protein), glutathione peroxidase (42.89±0.61 Ug-1 protein), glutathione (0.18±4.01 μmolg-1 cell) and malondialdehyde (2.49±0.12 nmol.g-1 cell) levels in wild fish were low compared to spermatozoa of farmed fish. Overall, alterations in malondialdehyde levels and the antioxidant status could be differences in habitat.

    • SDG 2 · Açlığa Son
    AtıfOpenAlex1
    TR Dizinİncele
  • MakaleAçık Erişim2019
    Türkiye’deki Pylaisietum polyanthae Felf. 1941 Üzerine Bir Not

    Alataş, Mevlüt; Ezer, Tülay; Batan, Nevzat; Erata, Hüseyin

    Çifteköprü ve Karagöl Tabiat Parkı (Borçka-Atvin)’nın epifitik briyofit vejetasyonunun araştırıldığı buçalışmada, 2018 yılının farklı vejetasyon dönemlerinde, ağaç gövdelerinden alınan örneklik alanların,klasik Braun-Blanquet metodu ile değerlendirilmesi sonucunda; Pylaisietum polyanthae sintaksonuTürkiye’den ikinci kez belirlenmiştir. Tanımlanan bu sintakson, ekolojik ve floristik açıdan analizedilerek sunulmuştur.

    AtıfOpenAlex2TR Dizin3
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  • MakaleAçık Erişim2019
    Comparing of Glutathione Levels of Some Bryaceae (Bryophyta) Species

    Alataş, Mevlüt; Çöteli, Ebru; Batan, Nevzat; Hazer, Yasin

    In this study, Reduced Glutathione (GSH) and Oxidized Glutathione (GSSG) levels of Bryum argenteum, Imbribryum mildeanum, Ptychostomum imbricatulum (I, II), Ptychostomum moravicum (I, II, III) and Ptychostomum capillare were determined with High-performance Liquid Chromatography (HPLC). GSH and GSSG levels of species were determined as Bryum argenteum 232.70 ± 13.40 µg/g ve 4,22 ± 1.20 µg/g; Imbribryum mildeanum 135.55 ± 6.66 µg/g ve 26.97 ± 2.50 µg/g; Ptychostomum imbricatulum (I) 107.44 ± 8.71 µg/g ve 153.05 ± 9.85 µg/g; Ptychostomum imbricatulum (II) 207.97 ± 13.58 µg/g ve 107.67 ± 4.55 µg/g; Ptychostomum moravicum (I) 172.89 ± 6.35 µg/g ve 12.53 ± 2.59 µg/g; Ptychostomum moravicum (II) 172.15 ± 6.62 µg/g ve 20.48 ± 2.54 µg/g; Ptychostomum moravicum (III) 176.84 ± 6.49 µg/g ve 28.86 ± 4.59 µg/g ve Ptychostomum capillare 234.38 ± 5.79 µg/g ve 6.58 ± 1.91 µg/g respectively. These results showed that these bryophyte species belonging to the Bryaceae family are very good sources of glutathione (GSH and GSSG). Due to their high glutathione content, it has been concluded that the family and species are antioxidant plants and can be used as raw material in various fields.

    • SDG 2 · Açlığa Son
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  • MakaleAçık Erişim2019
    The Moss Flora of Balya Sub-district Directorate (Balıkesir) of Forestry

    Alataş, Mevlüt; Cengiz, Ayşe; Ursavaş, Serhat

    In this study, the moss flora of Balya Sub-district Directorate (Balıkesir) in Turkey, were investigated. Between the years of 2016-2017. 288 moss specimens were collected and identified from Balya Subdistrict Directorate. 22 families, 54 genera, 103 taxa species, subspecies and variety were found. 18 of these taxa for B6 squares and 10 for Balıkesir are new record. In terms of taxa number, the riches five families are; Brachytheciaceae (22), Pottiaceae (19), Grimmiaceae (10), Bryaceae (8), Orthotrichaceae (7).

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