Sürdürülebilir Kalkınma Amaçları

Yazarlar

  • MakaleYalnız künye2018
    Mersin Körfezinde Avlanan Mavi Yengecin (Callinectes sapidus Rathbun, 1896) Mikrobiyolojik Kalitesinin Araştırılması

    Yalçın, Halil; Kurt Kaya, Gülderen

    Bu çalışmada, Mersin körfezinde avlanan mavi yengecin (Callinectes sapidus Rathbun,1896) mikrobiyolojik kalite bakımdan incelenmesi amaçlanmıştır. Örnekler, MersinMerkez (1. İstasyon), Erdemli (2. İstasyon) ve Silifke (3. İstasyon) ilçelerinde avlananbalıkçılardan temin edilmiş ve Mersin Gıda Kontrol Laboratuvar Müdürlüğü’nde analizealınmıştır. Çalışmada 180 adet örnek kullanılmış olup, analizler Ocak - Aralık 2014tarihleri arasında aylık periyotlar şeklinde yapılmıştır. Araştırmada Salmonella spp.,Koagulaz pozitif Staphylococcus aureus, Escherichia coli, Listeria monocytogenes,Vibrio choleraee, Vibrio parahaemolyticus, ve koliform grubu bakteriler araştırılmıştır.Çalışmada elde edilen sonuçlar göre; Salmonella spp., Listeria monocytogenes, Vibrioparahaemolyticus ve Vibrio cholerae her üç istasyonda da yıl boyunca tespitedilmemiştir. Koagulaz pozitif Staphylococcus aureus, Escherichia coli ve koliformgrubu bakteriler ise üç çalışma istasyonunda tespit edilmiş ve sıcaklığa bağlı olarak artışgösterdikleri saptanmıştır. Sonuç olarak; çevresel kökenli faktörlerin taze yakalanmışyengeçlerin bakteriyel florası üzerinde etkisinin olduğu sonucuna varılmıştır

    AtıfTR Dizin1
    TR Dizinİncele
  • MakaleAçık Erişim2018
    Water Quality Chance and The Variation of the Algal Flora of The Munzur River (Tunceli-Turkey)

    Kutlu, Banu; Demir, Burcu

    Phytoplankton distribution and physico-chemical parameters in two stations in Munzur River were determined in the study carried out monthly between February 2015 and January 2016. According to water quality regulation of the supreme, while quality of water is first class property for temperature, pH, oxygen, ammonium nitrate. It is class feature. Also II. The station is in danger of organic pollution due to domestic waste. When the phytoplankton distribution in the region is examined; 84 taxa belonging phytoplankton Chlorophyta (6), Bacillariophyta (54), Cyanobacteria (15), Rhodophyta (1), Ochrophyta (1), Euglenophyta (2), Charophyta (3), Miozoa (2) were detected. In terms of organisms in the phytoplankton Bacillariophyta division was dominant and Cyanobacteria division was subdominant in the two stations. In the phytoplankton, Ulnaria ulna from Bacillariophyta, Nitzschia palea, Bacillaria paradoxa ,Encyonema sp., Navicula sp. and Nitzschia acicularis were mostly found. Lyngbya sp., Spirulina labyrinthiformis, Oscillatoria labyrinthiformis and Oscillatoria mougeotii species beloning to cyanobacteria match to second place in the terms of importance. Chlorophyta, Charophyta and Euglenophyta have not reached important numbers.

    • SDG 6 · Temiz Su ve Sanitasyon
  • MakaleYalnız künye2018Scopus SJRQ1
    Doğu Anadolu’daki Geç Miyosen volkanizmasının örneklerinden biri olan Yamadağ Volkanitleri Malatya ili

    GuRBuZ, Meltem; Önal, Ayten Öztüfekçi; Basıbüyük, Zeynel; Akbudak, Ilkay Kaydu; İşler, Fikret

    Yamadağ Volcanics which is one of the examples of the Late Miocene volcanism in Eastern Anatolia covers largeareas within the boundaries of Arguvan county of Malatya. The gemstones, subject of this research range from afew centimeters to about 30-40 cm in size and are formed in the cavities of the basalts beonging to Yamadağvolcanics. These gemstones seem to have formed as veins extending in east-west direction and consist of opal (opal-CT) and chrysocolla. Opal formations have various colours such as white, brown, yellow and greenish, while chrysocolla formations are bluish-greenish in color. both opal and chrysocolla are of massive type and their freshsurfaces display waxy luster. Mineral paragenesis and formation conditions of gemstones and are determined byapplying XRD, SEM, FT-IR techniques. ICP-MS technique is used for the determination of the geochemicalcompositions. The gemological characteristics are identified via cabochon and facet cut techniques by usingdiamond coating blade, sintered diamond abrasive discs and polishing machine. Opals are usually composed oftridymite minerals, also in some cases quartz and cristobalite minerals accompany the tridymite minerals. The EDXmeasurements reveal, enrichment of Fe and Al in opals, and of Cu in chrysocolla. The ICP-MS measurements, in chrysocollas reveal, enrichments in LIL elements such as Ba, Sr and in HFS elements such as U. Consequently,gemological studies show that the chrysocolla and opals in study area, which have waxy luster and massivestructure, are suitable for utilization as a gemstone due to its color, hardness, durability, homogeneous distributionof color and processability

    AtıfTR Dizin1
    TR Dizinİncele
  • MakaleYalnız künye2018
    Uzunçayır Baraj Gölü’ndeki Capoeta trutta (Heckel, 1843)’nın Üreme Biyolojisi

    Yüksel, Fahrettın; Çoban, M. Zülfü; Alpaslan, Kenan; Demirol, Ferhat; Gündüz, Fatih; Alp, Ahmet

    Çalışmada, sürdürülebilir avcılık stratejilerinin belirlenebilmesi amacıyla, Uzunçayır Baraj Gölü'ndeki Capoeta trutta'nın üreme özellikleri araştırılmıştır. Balık örnekleri 2013 yılının Ocak-Aralık ayları arasında farklı ağ göz açıklıklarına (36-100 mm) sahip sade uzatma ağlarıyla aylık olarak yakalanmıştır. Araştırma süresince Uzunçayır Baraj Gölü'nden yakalanan 385 adet C. trutta bireyinin 218 adedini (%57.00) erkek, 167 adedini (%43.00) ise dişi bireylerin oluşturduğu ve populasyonun I-XII yaş grupları arasında dağılım gösterdiği saptanmıştır. GSİ değerlerinin mayıs ayında maksimuma ulaştığı, sperm ve yumurtalarını mayıs-temmuz ayları arasında bıraktıkları tespit edilmiştir. Yumurta çapları 0.30-1.07 mm arasında değişmiştir. Fekondite-total boy ve fekondite-ağırlık arasındaki ilişkileri açıklayan denklemler sırasıyla; F= 29.708*TL593.36 (N= 35, r= 0.27), F= 9.6448*W+5488.3 (N= 35, r= 0.38) olarak hesaplanmıştır. C. trutta bireylerinin yaş gruplarına göre yumurta veriminin 1362-15428 arasında değiştiği belirlenmiştir. Eşeysel olgunluk boyu dişi bireylerde 20.77 cm, erkek bireylerde 19.35 cm olarak tespit edilmiştir

    AtıfTR Dizin2
    TR Dizinİncele
  • MakaleYalnız künye2018Scopus SJRQ3
    Effects of conventional and organic rearing systems and hen age on oxidative stress parameters of blood and ovarian tissues in laying hens

    Benzer, Fulya; Baykalır, Yasin; Erişir, Mine; Şimşek, Ülkü Gülcihan

    Bu çalışmada yetiştirme sistemleri ve tavuk yaşının, tavukların serum ve yumurtalık dokusundaki bazı oksidatif stres parametreleri üzerine etkileri incelendi. Bu amaçla 30 ve 60 haftalık yaşta, iki farklı sistemden (konvansiyonel kafes ve organik) toplam 48 adet ticari yumurtacı hibrit olan Bovans White kullanıldı. Kesim işlemini takiben tavukların serum ve yumurtalık dokuları toplanarak, malondialdehid (MDA), glutatyon (GSH), glutatyon peroksidaz (GSH-Px) ve katalaz (CAT) düzeyleri belirlendi. Konvansiyonel kafeste yetiştirilen hem 30, hem de 60 haftalık tavukların serum MDA düzeyleri önemli derecede yüksek bulundu (P<0.05). Konvansiyonel kafeste GSH-Px aktivitesi düşük, aksine CAT aktivitesi önemli düzeyde yüksek tespit edildi (P<0.05). Tavuk yaşı serum MDA, GSH, GSH-Px ve CAT düzeylerini etkilemedi (P>0.05). Buna ek olarak, serumda, yetiştirme sistemi ve tavuk yaşı arasında önemli bir etkileşim bulunmadı (P>0.05). Konvansiyonel sistemdeki tavukların yumurtalık dokusunda MDA (P=0.010) ve GSH (P<0.01) seviyeleri önemli düzeyde yüksek bulunurken, GSH seviyesi 60 haftalık yaşta arttı (P<0.01). GSH-Px ve CAT aktiviteleri gruplar arasında benzer çıktı (P>0.05). Yetiştirme sistemi ve tavuk yaşı arasındaki etkileşim yumurtalık dokusunda CAT aktivitesini etkiledi (P<0.05). Sonuç olarak, konvansiyonel bataryalı kafesler, lipid peroksidasyon ve MDA düzeylerinin artmasıyla ilişkili olarak tavuklarda oksidatif strese neden oldu. Bu sistemde MDA'nın azalmasında rol oynayan antioksidan enzimler yetersiz kaldı. Oksidan/antioksidan dengesi 30 ve 60 haftalık yaşlarda tavuk organizması tarafından kurulabildi ve dolayısıyla dokuların MDA düzeyleri yaştan etkilenmedi

    AtıfTR Dizin2
    TR Dizinİncele
  • MakaleYayıncıda açık erişim2018
    THE MILITARY SUPPORT TO THE 1768-1774 OTTOMAN-RUSSIAN WAR FROM DIVANEORMAN DISTRICT AND DIVANEORMAN DISTRICT'S DEMOGRAPHIC FEATURES (Based on the Registry 6445, dated 1773)

    Alti, Aziz

    The Registry NFS.d. 6445 in the Ottoman Archives that dates back to 1773 indicates provision of human power to the Ottoman-Russian War. This registry which includes neighbourhoods and the three districts of Hezargrad, is composed of 41 pages. This study examines the Divaneorman district, one of the three districts. In order to contribute to the defence of the Tutrakan city in 1773 against the Russians, a total number of 540 people were selected from the Divaneorman district and recorded in this registry. In this respect, the information belonging to the Divaneorman district is evaluated in two categories: First, the information in the registry is explored from a military standpoint. Second, the present data are evaluated in social, economic and cultural terms.

  • Derleme MakaleAçık Erişim2018
    Aminoacids in freshwater fish

    Özçiçek, Esin; Can, Erkan

    Proteins, which are the most important substances in the structure of living organism, are polymers of aminoacids with their chemical qualities. Aminoacids can be converted into other substances during metabolism, and can be used in the synthesis of certain chemical structures that the body needs. While more than 90% of the amino acids in the structure of living organisms are present in the protein, the other part is found as free aminoacids in all tissues and body fluids. Fish cannot synthesize all the aminoacids in their body. Unsynthesised aminoacids must be given to fish with feed. The use of proteins in the embryological and larval stages is very important, and free aminoacids are one of the most important components of energy metabolism. Aminoacids are also used as quality indices for various fish species. Studies have shown that freshwater fish require especially essential amino acids. These; arginine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan and valine. In this study; information on the importance of aminoacids in freshwater fish has been compiled.

    • SDG 2 · Açlığa Son
    AtıfWoS1OpenAlex2
    Web of ScienceTR Dizinİncele
  • MakaleAçık Erişim2018
    Lavery's Frozen: The Psychosexual History of a Sexual Predator and the Poetics of Anti-Paedophilia

    Ögütcü, Uyesi Murat

    Bryony Lavery is an important figure in British feminist drama. She has been noted by critics for her unconventional theatrical methods and themes. Her Frozen (1998) is an anti-paedophiliac play that deals with a psychiatrist who tries to investigate the motives of a paedophile. Investigations into the past of the sexual predator blur the lines between the victim and the victimiser, and the acts of forgiving by the wronged family challenge conventional motifs of revenge. Lavery's use of black and dark comedy further challenges conventional ways of dealing with such serious matters. Therefore, by presenting the psychosexual history of the sexual predator in Bryony Lavery's Frozen, this article will analyse the social and psychological reasons behind sexual abuse in the play, and discuss Lavery's unconventional poetics of anti-paedophilia.

  • MakaleAçık Erişim2018
    Forward supply Chain network design problem: Heuristic approaches

    Koc, Cagri; Özceylan, Eren; Kesen, Saadettin Erhan; Çil, Zeynel Abidin; Mete, Suleyman

    Determining positions and counting of actors, amount of product flowbetween and decreasing transportation costs are handled as a networkdesign problem in supply chain management. Supply chain networkdesign (SCND) problem belongs to the class of NP-hard problems. It hastherefore appealed to a number of researchers’ close attention.However, existing literature lacks of common benchmark instances forforward SCND problems so as to make a fair comparison betweendeveloped and applied heuristic approaches. To this end, 450 newbenchmark instances ranging from small to large size for forward SCNDproblems with two, three and four-echelon are generated and amathematical model for each of the problems is formulated. Due to thecomplexity issues, we develop two heuristic solution approaches, geneticalgorithm (GA) and hybrid heuristic algorithm (HHA), and we applythem to the large pool of benchmark instances. Comparativeexperiments show that both the GA and HHA can yield feasible solutionsin much less computational time and, in particular, outperforms CPLEXregarding the solution quality as the number of echelon grows.

    • SDG 9 · Sanayi, Yenilikçilik ve Altyapı
    AtıfOpenAlex4TR Dizin2
    Web of ScienceTR Dizinİncele
  • MakaleAçık Erişim2018Scopus SJRQ2
    Pollen morphology of Scaligeria DC. (Apiaceae) in Turkey

    Baldemir, Ayse; Alan, Senol; Sahien, Aydan Acar; Paksoy, Mehmet Yavuz; Pinar, N. Munevver

    In this study, the pollen morphology of all Scaligeria DC. species distributed in Turkey were studied with light and scanningelectron microscopy for the first time. The aim is to contribute to knowledge of the variation among seven Scaligeria species, which havetaxonomic problems, based on pollen morphological characteristics by population analysis. The pollen is radially symmetrical, isopolar,and tricolporate in all examined species. Pollen grains are prolate and subprolate with the polar axes ranging from 18.4 to 37 μm andthe equatorial axes from 9.8 to 30 μm. Their polar shapes are triangular, triangular to subcircular, circular to subcircular, or triangularto subtriangular. Several types of exine ornamentations have been observed on pollen by scanning electron microscopy. Numericalanalysis showed that pore structure, the ratio of P/E, and ornamentation in the polar and equatorial views are most valuable variablesfor separating the Scaligeria species. All S. lazica taxa were grouped together and S. capillifolia and S. tripartita were the external taxadue to cluster and PCA analysis.

    AtıfOpenAlex13TR Dizin2
    Web of ScienceTR Dizinİncele
  • MakaleAçık Erişim2018
    Assessment of metal concentrations and physicochemical parameters in the waters of Lake Tecer

    Mutlu, Ekrem; Kutlu, Banu; Demir, Tugba; Yanik, Telat

    Aim of the study: The objectives of this study are to observe the monthly and annual changes in water samples using physical-chemical methods in order to determine the water quality properties, to reveal pollution problems, to determine the suitability of water quality for aquatic life and to classify the quality of water in accordance with the Surface Water Quality Management Regulation's Inland Surface Water Classes criteria. Area of the study: Lake Tecer is located in the southeastern area of Sivas city and at the end of Brook Tecer, a branch of the Kizilirmak. The lake has a mean depth of 2.4 m and is fed by surface waters and snowmelt. Material and methods: The study period was from March 2011 to February 2012. Samples analysed for several chemical and physical parameters representing water quality were collected monthly over a period of 12 months. Main results: It was observed that the condition of the lake in terms of water quality is good. According to the Classification of the Intra-Continental Water Resources in the WPCR, the lake shows Class I, II and III water quality characteristics. Research highlights: In order to protect the water quality of this water source, to reduce further pollution and to sustain the natural ecological balance consisting of natural fish stocks and other aquatic animals, this lake should be monitored continuously.

    • SDG 6 · Temiz Su ve Sanitasyon
    AtıfWoS6OpenAlex11TR Dizin5
    Web of ScienceTR Dizinİncele
  • MakaleAçık Erişim2018Scopus SJRQ4
    Effect of glyphosate on some protective systems in Zea mays L; [Glifosatın mısır (Zea mays L.)’da bazı koruyucu sistemlere etkisi]

    Beker Akbulut, Gulcin; Yigit, Emel; Bayram, Dilek

    Glyphosate is an herbicide that is applied after non-selective germination and affects plant growth. In this study, glyphosate was applied to Zea mays L. after germination, at a concentration range from 0.017 to 0.145 M in a growth chamber. The effects of this herbicide on some antioxidant enzymes, lipid peroxidation, total chlorophyll and total carbohydrate content were investigated on days 1, 5 and 10 following the application. Results showed that peroxidase (POD), ascorbate peroxidase (APX), superoxide dismutase (SOD), catalase (CAT) and glutathione-S-transferase (GST) were increased in the groups treated with glyphosate on days 5 and 10, but the activities of reduced glutathione (GSH) and glutathione reductase (GR) were decreased on day 10. Malondialdehyde (MDA) content indicating lipid peroxidation was increased on days 1, 5 and 10. Changes in total chlorophyll and total carbohydrate contents were found to be time-dependent. These increases and decreases in the antioxidant activities, MDA content, total chlorophyll and total carbohydrate content in Zea mays L. were determined as a symptom of cytotoxicity caused due to glyphosate.

    • SDG 2 · Açlığa Son
    AtıfScopus3OpenAlex1
    ScopusTR Dizinİncele
  • MakaleAçık Erişim2018Scopus SJRQ4
    Comparing transperineal ultrasonography and vaginal examination for discomfort in labor follow-up

    Saridoǧan, Erdinç; Alp Dal, Nursel; Özdemir, Çaǧdaş; Şimşek, Erkan; Aǧlamiş, Özgür; Özgü, Burçin

    Objective: This study aimed at knowing the difference between the pain scores of intrapartum transperineal ultrasonography and vaginal examination. Material and Methods: A total of 146 pregnant women who were in cephalic presentation and active phase of labor at term with low risk were evaluated prospectively by transperineal ultrasonography (TU) and vaginal examination (VE). The active phase of labor was accepted to be 5-6 cm of cervical dilatation, >60% of cervical effacement, and >250 Montevideo units or at least three regular uterine contractions in ten minutes in cardiotocography. Descriptive characteristics and pain scores (using a visual analogue scale) were assessed. Results: The mean value of transperineal ultrasonography pain scores was 5.48±1.39 (minimum 2 and maximum 8) and the mean value of vaginal examination pain scores was 7.12±1.28 (minimum 4 to maximum 10) (p<0.001). The mean transperineal pain scores of nulliparous and multiparous women were 5.93±1.36 and 5.15±1.32, respectively (p<0.001). The mean vaginal examination pain scores of nulliparous women and multiparous women were 7.54±1.23 and 6.82±1.24, respectively (p<0.001). Conclusion: The use of ultrasonography in the follow-up of labor seems to be more acceptable and a less painful method.

  • MakaleAçık Erişim2018
    Investigation of mineral components and antioxidant properties of a healthy red fruit: Cornelian Cherry (Cornus mas L.)

    Karaaslan, Merve Goksin; Karaaslan, Nagihan M.; Ates, Burhan

    The mineral components of the foodstuff consumed by an individual are important in the growth and development of a human being. In recent years red fruits, because of their potential beneficial health effects, are getting attention of both consumers and manufacturers. One of the red fruits, Cornelian cherry (Cornus mas L.), was investigated in terms of both mineral components and antioxidant properties. The mineral components include calcium (Ca), iron (Fe), potassium (K), magnesium (Mg), and zinc (Zn) in this fruit were determined using flame atomic absorption spectrometry (FAAS). The antioxidant activity tests were applied to the extracts obtained using different solvents to examine the antioxidant properties of this fruit. Statistical analysis indicated that while the best results were obtained from acetone extracts, the lowest results were obtained from water extracts for all antioxidant activity tests (p<0.05). The best average values for DPPH and ABTS radical scavenging capacity, reducing power, total phenolic content and total flavonoid content in acetone extracts were found to be 1053.72±38.12 mg TEAC/100 g FW and 2907.34±152.05 mg TEAC/100 g FW, 5894.99±251.05 mg TEAC/100 g FW, 2979.25±69.40 mg GAE/100 g FW and 255.75±14.92 mg QE/100 g FW, respectively.

    • SDG 2 · Açlığa Son
    • SDG 3 · Sağlık ve Kaliteli Yaşam
    AtıfScopus14OpenAlex13TR Dizin3
    ScopusTR Dizinİncele
  • MakaleAçık Erişim2018Scopus SJRQ4
    Comparison of oxidant and antioxidant status of Çoruh trout (Salmo coruhensis), anatolian trout (Salmo rizeensis) and rainbow trout (Oncorynchus mykiss) spermatozoa

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

    The aim of present study was to compare oxidant and antioxidant status of Çoruh trout (Salmo coruhensis), Anatolian trout (Salmo rizeensis) and rainbow trout (Oncorynchus mykiss) spermatozoa. Fish were obtained from Uzungöl. Enzymatic antioxidant activities (superoxide dismutase, catalase, glutathione peroxidase), glutathione and lipid peroxidation (malondialdehyde) were determined in spermatozoa of three trout species. Results indicated that catalase (23.36±0.36 K/g.protein), glutathione peroxidase (74.00±1.5 U/g.protein), glutathione (0.57±1.24 µmol/g.cell) and malondialdehyde levels (6.55±2.01 nmol/g cell) were highest levels in Anatolian trout (S. rizeensis) spermatozoa. In conclusion, differences among species caused alterations in the antioxidant and malondialdehyde levels.

    AtıfScopus1OpenAlex2TR Dizin1
    ScopusTR Dizinİncele
  • MakaleAçık Erişim2018
    Heartbeat type classification with optimized feature vectors

    Yıldırım, Özal; Baloglu, Ulas Baran

    In this study, a feature vector optimization based method has been proposed for classification of the heartbeat types. Electrocardiogram (ECG) signals of five different heartbeat type were used for this aim. Firstly, wavelet transform (WT) method were applied on these ECG signals to generate all feature vectors. Optimizing these feature vectors is provided by performing particle swarm optimization (PSO), genetic search, best first, greedy stepwise and multi objective evoluationary algorithms on these vectors. These optimized feature vectors are later applied to the classifier inputs for performance evaluation. A comprehensive assessment was presented for the determination of optimized feature vectors for ECG signals and best-performing classifier for these optimized feature vectors was determined.

    • SDG 3 · Sağlık ve Kaliteli Yaşam
    AtıfScopus7OpenAlex7
    ScopusTR Dizinİncele
  • MakaleAçık Erişim2018Scopus SJRQ3
    The protective effects of chrysin and flunixin meglumine against excess copper in male rats

    Seven, Pinar Tatli; Baykalir, Burcu Gül; Seven, Ismail; Ak, Tuba Parlak; Başak, Neşe; Güllüoglu, Hakan

    Thirty-six Sprague Dawley male rats were housed in individual cages and randomly divided into six groups: Control, copper sulfate (Cu; 500 ppm body weight (BW)/day), flunixin meglumine (FM; 2.2 ppm BW/day), chrysin (chrysin; 50 ppm BW/day), copper sulfate + FM (Cu + FM; 500 ppm BW/day of copper sulfate and 2.2 ppm BW/day of FM), and copper sulfate + chrysin (Cu + Chrysin; 500 ppm BW/day of copper sulfate and 50 ppm BW/day of chrysin). Feed intake (FI) in the Cu + Chrysin group significantly increased in comparison with that of the Cu group (P < 0.01). Cu excess significantly increased malondialdehyde, indicating oxidative stress. Chrysin and FM administration significantly decreased malondialdehyde levels and increased the superoxide dismutase and catalase activities in the liver and kidney tissues (P < 0.001). Serum TNF-α levels were significantly lower in the Cu + FM and Cu + Chrysin groups in comparison to the Cu group (P < 0.001). It was seen that FM and chrysin treatments alleviated degeneration, necrosis, and apoptosis in the liver and kidney tissues of the Cu-treated rats. Chrysin appeared to ameliorate the adverse effects on FI and liver and kidney tissues by scavenging where the free radicals are located and increasing the activity of antioxidants.

    • SDG 3 · Sağlık ve Kaliteli Yaşam
    AtıfScopus8WoS7OpenAlex9TR Dizin2
    ScopusWeb of ScienceTR Dizinİncele
  • MakaleAçık Erişim2018Scopus SJRQ4
    Assessment of student achievement and views on the impact of instruction with visualization of identities in (ax+b)n form in mathematics

    Ilhan, Aziz; Çelik, Halil Coşkun

    The aim of the present study is to examine the impact of instruction with visualization of identities in form in mathematics on students' achievement and opinions. The study employs an explanatory design, a mixed method, through which qualitative and quantitative data were collected and analysed. Quantitative data in the study were obtained using the Identities and Binomial Exponential Achievement Test to determine the effect of visualization-assisted instruction on students' academic achievement. Qualitative data, regarding the student views on the subject, were collected through a structured interview form. Participants of the study, 53 students, were selected by appropriate sampling method among the first-year univeristy students. The t-test and one-way covariance analysis were used to analyse the quantitative data and the content analysis method was used for the qualitative data. The results obtained from quantitative data indicated that instruction of algebraic expressions through mathematical visualization increased student achievement in comparison to traditional instruction. On the other hand, the qualitative data indicated that visualization facilitated a positive development in instruction of algebraic expressions, rendered the teaching process to be more interesting and enjoyable and led the students to acquire conceptual learning skills instead of memorizing.

    • SDG 4 · Nitelikli Eğitim
    AtıfOpenAlex5
    ScopusWeb of ScienceTR Dizinİncele
  • MakaleYalnız künye2017
    A stochastic location and allocation model for critical items to response large-scale emergencies: A case of Turkey

    Celik, Erkan; Aydin, Nezir; Gumus, Alev Taskin

    This paper aims to decide on the number of facilities and their locations, procurement for pre and post-disaster, and allocation to mitigate the effects of large-scale emergencies. A two-stage stochastic mixed integer programming model is proposed that combines facility location-prepositioning, decisions on pre-stocking levels for emergency supplies, and allocation of located distribution centers (DCs) to affected locations and distribution of those supplies to several demand locations after large-scale emergencies with uncertainty in demand. Also,theuseofthemodelisdemonstratedthroughacasestudyfor prepositioning of supplies in probable large-scale emergencies in the eastern and southeastern Anatolian sides of Turkey. The results provide a framework for relief organizations to determine the location and number of DCs in different settings, by using the proposed model considering the main parameters, as; capacity of facilities, probability of being affected for each demand points, severity of events, maximum distance between a demand point and distribution center.

  • MakaleYalnız künye2017
    Women's Powerty in Turkey in terms of Gender Rolles

    Tire, Olcay

    Toplum, cinsiyetlerinden ötürü kadın ve erkeğe ayrı ayrı muamelelerde bulunur; onlara farklı özellikler, davranışlar, görevler, duygular yükler. Ataerkil toplumsal ilişkiler zemininden yükselen bu ayrım, her toplumda rol farklılaşmalarına ve cinsiyete dayalı eşitsizliklere yol açmıştır ve de açmaktadır. Bu rol farklılaşmaları, toplumda kadınların değersiz görülen ev ve bakım işlerinden (çocuk-yaşlı-hasta bakımı) sorumlu tutulmalarına, dolayısıyla kadınların toplumda pasif bir konumda olmalarına neden olmaktadır. Buna karşın erkeklerse çok daha etkin pozisyonları ellerinde tutmaktadırlar. Kadınlara biçilen bu geleneksel roller, bir yandan onların toplumsal hiyerarşideki derecesini alçaltırken diğer yandan erkelere göre daha kolay ve derinden yoksullaşmalarına neden olmaktadır. Bu çalışmanın amacı da kadın cinsi üzerinden toplumsal cinsiyet ve yoksulluğun neden sonuç ilişkilerini açıklayıp kadının ücretsiz olarak gerçekleştirdiği bakım emeğindeki sömürüyü ortaya koymaktır.

    AtıfTR Dizin2
    TR Dizinİncele