Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Gul, Muhammet(82)
- Akkurt, Nevzat(67)
- Güler, Ömer(66)
- Baskonus, Haci Mehmet(62)
- Bulut, Hasan(60)
- Tekin, H.O.(52)
- ALMisned, Ghada(49)
- Yucesan, Melih(43)
- Yildirim, Numan(42)
- Yildirim, Nuran Cikcikoglu(38)
- Paksoy, Mehmet Yavuz(36)
- Serdar, Osman(36)
- Zengin, Gokhan(36)
- Ince, Muharrem(34)
- Celik, Erkan(33)
- Benzer, Fulya(32)
- Kocabaş, Mehmet(30)
- Sulaiman, Tukur Abdulkadir(30)
- Tanyol, Mehtap(29)
- Yildirim, Ozal(28)
- Aslan, Naim(26)
- Kök, Mediha(26)
- Özkul, İskender(26)
- Ates, Mehmet(25)
- Danabas, Durali(25)
- Kutluyer, Filiz(25)
- Can, Erkan(24)
- Kutlu, Banu(23)
- Onat, Onur(23)
- Demir, Veysel(22)
- Erten, Fusun(22)
- Guler, Omer(22)
- Say, Yakup(22)
- Güler, Seval Hale(21)
- Yaman, Mehmet(21)
- Baykal, Duygu Sen(20)
- Sançar, Taylan(20)
- Susam, Selim Orhun(20)
- Cakilcioglu, Ugur(19)
- Orhan, Cemal(19)
Yayınlar
- MakaleAçık Erişim2018Scopus SJRQ2Investigations of dark, bright, combined dark-bright optical and other soliton solutions in the complex cubic nonlinear Schrödinger equation with δ-potential
Baskonus, Haci Mehmet; Sulaiman, Tukur Abdulkadir; Bulut, Hasan; Aktürk, Tolga
In this study, using the extended sinh-Gordon equation expansion method, we construct the dark, bright, combined dark-bright optical, singular, combined singular solitons and singular periodic waves solutions to the complex cubic nonlinear Schrödinger equation with δ-potential. The conditions for the existence of the obtained solutions are given. To present the physical feature of the acquired result, the 2D and 3D graphs are plotted under the choice of suitable values of the parameters.
AtıfScopus73OpenAlex76
İncele - MakaleYalnız künye2018Scopus SJRQ2Effect of the novel biodegradable copolymer and soil salinity on the growth of corn plant
Torğut, Gülben; Beker Akbulut, Gülcin
Biodegradable and biocompatible poly (1,2-epoxy-3-phenoxy propane)-co-(ε-caprolactone) poly(EPP-co-ε-CL) copolymers were synthesized by ring-opening polymerization method at four different ε-CL ratios. Copolymers were characterized using Fourier-transform infrared spectroscopy, proton nuclear magnetic resonance (1H-NMR), thermogravimetric analysis, and differential scanning calorimetry. To examine their possible applications in agriculture, germination test and growth analyses of corn plants were carried out. For this purpose, corn (Zea mays L. cv. “72 May 80”) was allowed to germinate under suitable conditions. Copolymers, 200 mM salt (NaCl) solution, and both copolymers and salt solution were applied to the plants and compared with the control groups. On the 21st day, all the plants were harvested and were stored at −80°C until analysis. Differences in growth parameters, lipid peroxidation degrees, pigment analysis, and total carbohydrate analysis were tested in order to put forward copolymer and NaCl sensitivity of the corn. Statistical analysis was carried out using the SPSS 17.0 software program and the results were compared with each other. These results showed that the copolymers both have a positive effect on the carbohydrate and malondialdehyde (MDA), a product of lipid peroxidation content as well as the chlorophyll content. Moreover, poly(EPP-co-ε-CL0.88) was more efficient than was the other copolymers in the improvement of the detrimental effects of salinity in increasing chlorophyll, carbohydrate, and MDA content, and growth of corn plants. As a result of the study, it was demonstrated that all of the investigated parameters were affected by the applications of salt and copolymers.
AtıfScopus2WoS2OpenAlex3İncele - MakaleYalnız künye2017Scopus SJRQ3Enhancing the potential of employing thermosetting powder recyclates as filler in LLDPE by structural modifications
Kismet, Yilmaz; Wagner, Manfred H.
Potential of using powder coating recyclates as filler material for polyethylene compounds was investigated. Due to their strong adhesion to the metal surface during compounding at extrusion temperatures higher than 100 degrees C, the coating powder recyclates were chemically modified to facilitate its processing by extrusion and injection molding at higher temperatures. For this purpose, the coating powder recyclates were first hydrolyzed with addition of an alcohol as swelling agent. The deactivated recyclates were mixed at different ratios with the matrix polymer, a linear low-density polyethylene (LLDPE). The mixtures obtained were then compounded by extrusion and subsequently injection molded to plates to produce specimens for testing. The resulting samples were characterized mechanically by tensile, bending, and impact strength tests. In summary, the powder coatings recyclates can be processed as filler for thermoplastic material, without any adhesion problems up to 160 degrees C and 180 degrees C in the extruder and in the injection molding machine, respectively.
AtıfWoS12OpenAlex13İncele - MakaleYalnız künye2017Scopus SJRQ4COMPARATIVE MICROMORPHOLOGY AND ANATOMY OF CHRYSOCHAMELA (FENZL) BOISS. (CRUCIFERAE) GROWING IN TURKEY
Çakilcioglu, Ugur; Paksoy, Mehmet Y.; Babacan, Ebru Yuce; Polat, Ridvan
The micromorphological and anatomical characteristics of three species of Chrysochamela genus have been comparatively presented by using light microscopy (LM) and scanning electron microscopy (SEM). The micromorphological studies are related to the epidermal and seed surface. In anatomical studies, cross sections of the stems and leaves were examined and biometric measurement of cell and tissues were made. The stem and leaf anatomy of the genus were described. In addition, the stomatal index rate and stomatal index of these species were calculated. The leaf is dorsiventral in mesophyll-type. Except its C. noeana taxon, stellate trichomas are coincided in other taxon. Stoma can be observed on both sides of the leaf. Whereas stoma index rates of this genus were found in the range of 0.7 - 1.2, stoma types were observed as aniocytic and anomocytic. Seed surface of the genus can be found in reticulate, verrucae or in verrucaerugose types. In conclusion, the presence/absence of trichome over stem and leaves, the presence/absence of collenchyma in middle the vascular region, the seed shape, epidermal cell shape, and the characteristics of anticlinal boundaries and periclinal cell walls were found to be the important characters for identification of the Chrysochamela genus.
AtıfWoS3İncele - MakaleAçık Erişim2017Co-Author Link Prediction from Academic Databases
Burhan, Yucel; Das, Resul
Social networks: social communication platforms where individuals exhibit their attitudes and behaviors, gestures and mimics in symbolic actions in a virtual environment. Their swift development and wide usage proportion rises social networks' necessity and popularity. People communicate with each other and share some data like idea, thinking, photo, video and location. When this data is processed, very important information is obtained about the users. In this light, it is possible to make important estimates about the users. To analyze a network, the network model, properties of graph structure, criteria and metrics must be calculated first. In this study, similarity calculation between the subjects which authors studied has been done. In this application, five suitable models (Jaccard Index, Sorensen Index, Common Neighbor, L. H. Newman Index and Salton Index methods) are applied to the data set generated by randomly selected twenty writers. In order to evaluate the calculation results; the results of the similarity calculation between authors with known linkages are used as reference values. Comparisons of obtained similarity values with reference values result in new connections. These links reveal that authors can publish articles together.
AtıfWoS1OpenAlex5İncele - MakaleAçık Erişim2017Investigation and monitoring of tetracycline and degradation products in waters of trout farm
Topal, Murat
In this study, tetracycline and degradation products were determined in the basins of a trout farm and in the stream carrying the waters of trout farm. Tetracycline (TC), 4-epitetracycline (ETC), 4-epianhydrotetracycline (EATC) and anhydrotetracycline (ATC) concentrations were determined under the detection limit in upstream of trout farm. The highest and lowest tetracycline concentrations detected in trout farm are 7.64 +/- 0.38 ppb and under detection limit, respectively. The highest and lowest 4-epitetracycline concentrations were 16.2 +/- 0.8 and 1.85 +/- 0.09 ppb, respectively while the highest and lowest 4-epianhydrotetracycline concentrations detected in trout farm were 25.8 +/- 1.3 and 6.12 +/- 0.30 ppb, respectively. The highest and lowest anhydrotetracycline concentrations detected in trout farm were 18.5 +/- 0.9 and 6.24 +/- 0.31 ppb, respectively. Mean tetracycline, 4-epitetracycline, 4-epianhydrotetracycline and anhydrotetracycline concentrations were 3.52 +/- 0.17; 5.30 +/- 0.26; 14.4 +/- 0.7 and 9.64 +/- 0.48 ppb in downstream of trout farm. When upstream and downstream were compared in terms of tetracycline and degradation products it could be said that Keban stream was affected as a result of activity of trout farm.
AtıfWoS1OpenAlex1İncele - Derleme MakaleAçık Erişim2017Usage of microalgae as a sustainable food source in aquaculture
Özçiçek, Esin; Cane, Erkan; Yilmaz, Kadir; Can, Safak Seyhaneyildiz
The need for food sources more reliability according to animal products has increased interest especially in plants and in algae. In aquaculture has benefited significantly from microalgae in the various application areas. They are used as food as well as are evaluated as sources of pigments in the salmonids. Currently, studies are underway to examine the cost-effectiveness of microalgae production systems which can be obtained by large-scale and advanced quality control. In order to ensure sustainability in the use of microalgae; a systems based approach is needed which integrates different fields such as biotechnology, bioprocess and management procedures.
AtıfWoS4OpenAlex1İncele - MakaleYalnız künye2017Scopus SJRQ3SEASONAL CHANGES IN ANTIOXIDANT DEFENCE SYSTEM ON BROWN TROUT (SALMO SP.) IN MUNZUR STREAM
Can, Erkan; Cikcikoglu-Yildirim, Nuran; Erdogan, Devrim
The aim of the present study was to evaluate the oxidant and antioxidant status of the indigenous brown trout (Salmo sp.) caught from Munzur stream (Tunceli, Turkey) at different seasons in different tissues. Glutathione peroxidase (GPx), catalase (CAT), superoxide dismutase (SOD), total antioxidant status (TAS) and total oxidant status (TOS) levels were measured. These measurements were read in a microplate reader using commercial kits with ELISA method. At the end of the study, significant variations of oxidative stress biomarkers were observed between seasons and tissues. The results of this study show that oxidative stress responses in tissues of Salmo sp. are sensitive to the tissues and the seasons in relation to the contaminants, climatic parameters and reproductive period in Munzur stream. The selected parameters are in valuable biomarkers for monitoring of water systems since at molecular levels they give an early warning signal of xenobiotics on aquatic organisms. It was concluded that the measurement of antioxidants biomarkers known such as SOD, CAT and GSH-Px activities, TAS and TOS levels may also be promising indicators of an oxidant impact on aquatic organisms.
AtıfWoS2İncele - MakaleAçık Erişim2017Stability of fish protein hydrolysate from heads of gilthead sea bream (Sparus aurata), european sea bass (Dicentrarchus labrax) and rainbow trout (Oncorhyncus mykiss) during storage
Erol, Nida Demirtas; Erdem, Omer Alper; Çakli, Sukran
In the present study, protein hydrolyzate was obtained from the head region from the wastes produced during filleting of seabream (Sparus aurata), seabass (Dicentrarchus labrax) and trout (Oncorhyncus mykiss) cultured in Turkey. After the functional and antioxidant properties of the obtained products were determined, the post-storage stability of the protein hydrolysates stored frozen for 6 months was determined by analysis. In this study, degree of hydrolysis, functional properties (protein solubility, emulsion properties, foaming properties, color properties, water holding capacity (WHC)), antioxidant properties (DPPH (1,1 -diphenyl-2-pic-ryhydrayl) free radical scavenging capacity, antioxidative activity, metal chelating) and determination of aminoacid sequencing were carried out in protein hydrolysate. To evaluate the effect of storage time on fish protein hydrolysates stored at -18 degrees C after production, the above-mentioned analyzes including functional and antioxidative properties were repeated at the end of the 6 month storage period. Results were interpreted using statistical analysis. According to the functional and antioxidative properties of fish protein hydrolyzate, the highest antioxidant activity was determined in seabream head hydrolyzate. The production yield of all fish protein hydrolysates is 5%. The functional and antioxidant properties of fish protein hydrolysates varied according to fish species.
AtıfWoS6OpenAlex7İncele - Kitap BölümüYalnız künye2017Nanoencapsulation of Enzymes, Bioactive Peptides, and Biological Molecules
Çaglar, Muhammed Yusuf; Demirci, Mehmet; Bayrambas, Kadir; Çakir, Bilal; Gülseren, Ibrahim
AtıfWoS3OpenAlex4İncele - MakaleYalnız künye2017Scopus SJRQ3THE ROLE OF GLUTATHIONE IN THE DETOXIFICATION OF PERCHLOROETHYLENE
Sahilli, Yeliz Cakir
Environmental factors have important roles in the development of cancer. Especially, the exposure of chemicals existing in the workplace with people is a very important issue. People at such places are exposed to chemicals more especially via respiratory and dermal route. Thus, their health is under the risk. Dry cleaning centers are intensively subjected to PCE, which is a common chemical used at these work places, and the risk of cancer is very high for them. The main aim of the present study is to investigate, if PCE exposure results in glutathione efflux from human erythrocytes. In the present study, the changes in intracellular and extracellular non-protein sulfhydryl (NPSH) levels were determined in PCE exposed erythrocytes. PCE significantly depleted intracellular NPSH level in a time and concentration-dependent manner. PCE significantly increased the NPSH levels measured in the extracellular media. Along with the change in extracellular nonprotein thiol levels, significant increases in extracellular glutathione levels were detected. Erythrocyte membranes were not damaged over the course of PCE exposure as indicated by the absence of lactate dehydrogenase activity in the extracellular media. Utilization of MK571 an MRP inhibitor decreased the rate of glutathione efflux from erythrocytes suggesting a role for this membrane transporter in the process. The results of the present study indicate that erythrocytes efflux glutathione when exposed to PCE. In addition to glutathione oxidation, glutathione efflux also contributes to intracellular loss of glutathione when exposed PCE.
- MakaleYalnız künye2017Scopus SJRQ3PERSISTENCE OF TWO SULPHONYLUREA HERBICIDES IN WHEAT PLANTED FIELD, THRACE REGION IN TURKEY
Erguven, G. O.; Yildirim, N.
This study is concerning the environmental fate of chlorsulfuron and tribenuron-methyl herbicide in a wheat planted field at Thrace Region in Turkey. Use of herbicides containing these active ingredients is advised in the Marmara region in Turkey for cereal agriculture. The study was conducted in wheat planted fields where these herbicides were used. Over nine months, in each two or three week periods, soil samples were obtained from selected sampling points and herbicide residuals were determined by gas chromatography with electron capture detector (GC-ECD) and high performance liquid chromatography-mass spectrometry (HPLC-MS). As a result of these studies, persistence of chlorsulfuron was determined as approximately 1.2% at the second half of June, 2016 and tribenuron methyl seemed to be approximately 1% at the end of May, 2016. The results of the present study showed that chlorsulfuron is generally adsorbed weakly by soil when compared to tribenuron-methyl. pH, organic material, climatic factors and clay content of soil were the main factors influencing the adsorption and desorption properties of the herbicides. The results of this study demonstrated that chlorsulfuron and tribenuron-methyl residues in the soil might depend on their different chemical structures, soil temperature, precipitation and humidity.
AtıfWoS4İncele - MakaleYalnız künye2017Scopus SJRQ4COMPARATIVE VEGETATIVE ANATOMY AND FRUIT MICROMORPHOLOGY OF THE GENUS KUNDMANNIA SCOP. AND THEIR TAXONOMICAL SIGNIFICANCE
Paksoy, Mehmet Yavuz; Polat, Ridvan; Çakilcioglu, Ugur
Kundmannia Scop. is a genus of the Apiaceae (Umbelliferae) family which consists of 463 genera and ca. 3500 species. Kundmannia belongs to the Oenantheae tribe and are well represented in Spain, France, Italy, Turkey, Syria and North Africa where they grow on calcareous or siliceous soils. In this study; fruit micromorphology and the vegetative anatomy of the Kundmannia species growing in Turkey were compratively examined for the first time. The anatomical sections were taken from the stem, ray, leaf and and petiole of the plants for taxonomic deduction. Various tissues of taxa were given comparative micro anatomical measurements according to the anatomical studies, lignified or non-lignified medullary rays in stems, stomata types (diacytic and anomocytic), stomata index ratio (0.58 - 0.7), fruit shape and fruit epidermal surface are considered as important anatomical characters. In the fruit micromorphology, the cells on the mericarp surface have seen as striate and rugulate while the surface between the two ribs in the species have observed rugulate or striate. Fruit micromorphology and vegetative anatomy of the genus Kundmannia has not been studied before. However, the anatomical structure of the genus has been elucidated in this study, for the first time.
AtıfWoS1İncele - MakaleYalnız künye2017Scopus SJRQ3C-REACTIVE PROTEIN AND ADRENOMEDULLIN LEVELS IN CAPOETA UMBLA (HECKEL, 1843) AS NOVEL BIOINDICATORS FOR BIOMONITORING THE MICROBIAL CONTAMINATION IN INLAND WATERS OF TUNCELI, TURKEY
Yildirim, Nuran Cikcikoglu; Danabas, Durali; Yildirim, Numan; Tanyol, Mehtap; Danabas, Seval
The present study focused on changes in the C-reactive protein (CRP) and adrenomedullin (ADM) levels in the liver and gill tissues of Capoeta umbla as biomarkers of environmental pollution and ecosystem health in inland waters of Tunceli (Turkey). The CRP levels in liver and gills were not significantly changed in March and September at every site (p>0.05) except for site 3 in gill tissues (p<0.05). The results of statistical analysis indicate that significant differences in CRP levels were found in liver and gills among sites (p<0.05), but no changes in the gills at March (p>0.05). In March, ADM levels in gills and liver were statistically changed among sites (p<0.05), while no statistical changes were determined in September (p>0.05). The results of this study indicated that CRP levels in the tissues of the C. umbla could be utilized as a significant bioindicator for disease pathogenesis in fish infections.
- MakaleYalnız künye2017Scopus SJRQ1A food waste utilization study for removing lead(II) from drinks
Ince, Olcay Kaplan; Ince, Muharrem; Yonten, Vahap; Goksu, Ali
This is the first study about removal of lead (Pb(II)) from energy drinks. In this paper, food waste, namely eggshell (hydroxyapatite) utilization, was used to remove Pb(II) from mineral water and energy drinks. Mineral water and energy drinks were chosen for removal of lead since the latter is severely hazardous to human health even in small amounts. Response Surface Methodology (RSM) was performed to optimize the application process by practice of the quadratic model united with the Central Composite Design (CCD) and quadratic combined program was utilized to study the most effective parameters on aforementioned liquids. Through the application of variance analysis (ANOVA) factors critical to removing of lead were identified for each experimental design response. Maximum adsorption capacity of eggshell was achieved as 923 mg g(-1) for Pb(II). The obtained optimum conditions were applied to drinks. Results showed that used adsorbent was quite effective in removing Pb(II) from drinks. (C) 2016 Elsevier Ltd. All rights reserved.
AtıfWoS27OpenAlex28
İncele - MakaleAçık Erişim2017Scopus SJRQ3The Effect of Porosity and Cu Rate on Microstructure and Mechanical Properties of Co Alternative Powder Metallurgy Compound
Çelik, Ertugrul; Aslan, Ali Kemal
Cu-Ni-MX1480 powder compound were prepared at six different alloy ratios and cold pressed with a pressure of 300 MPa. Then 12 samples were obtained by hot pressing at 700 degrees C with 20 MPa pressure and at 800 degrees C with 30 MPa pressure for 4 minutes in a vacuum atmosphere hot pressing machine. Porosity ratios of samples were calculated by the different between theoretical density and measured density of samples. Effect of porosity on microstructure and mechanical properties were investigated by performing SEM, XRD, hardness measurements and TRS tests. It was observed that as a result of increased hot pressing parameters and increased Cu ratio, porosity ratio was decreased and better mechanical properties achieved.
AtıfWoS15OpenAlex14İncele - DüzeltmeYalnız künye2017Scopus SJRQ1A food waste utilization study for removing lead(II) from drinks (vol 214, pg 637, 2017)
Ince, Olcay Kaplan; Ince, Muharrem; Yonten, Vahap; Goksu, Ali
- BildiriYalnız künye2017New Complex and Hyperbolic Function Solutions to the Generalized Double Combined Sinh-Cosh-Gordon Equation
Baskonus, Haci Mehmet; Sivasundaram, S
In this study, we have applied the improved Bernoulli sub-equation function method to the generalized double combined Sinh-Cosh-Gordon equation. This method gives new analytical solutions such as complex and hyperbolic function solutions to the problem considered in this paper. Then, we plot the three and two dimensional surfaces of analytical solutions by using Wolfram Mathematica
AtıfWoS42OpenAlex48İncele - MakaleAçık Erişim2017Determining The Water Quality of Maruf Dam (Boyabat-Sinop)
Mutlu, Ekrem; Kutlu, Banu
In this study, the preliminary findings obtained from 3 sampling points, which represent the whole, on Maruf Irrigation Dam, which is located in Boyabat district of Sinop province, for 12 months between September 2015 and August 2016 were examined. The parameters monitored are temperature, dissolved oxygen, pH, electrical conductivity, total hardness, total alkalinity, chemical oxygen demand, biological oxygen demand, and dissolved anions and cations (sodium, potassium, calcium, magnesium, ammonium, nitrate, phosphate, chloride, sulfate, and sulfite). Because of its low dissolved ionic matter content, Maruf Dam was characterized as an alkali dam with mid-hard water and low electrical conductivity. In terms of parameters A and B of Surface Water Quality Management Regulation, the dam is considered high-quality and unpolluted. Besides the irrigation purposes, for which the barrage was constructed, the dam can also be used for aquaculture, animal breeding, and farming needs.
AtıfWoS6OpenAlex11TR Dizin4
İncele - MakaleAçık Erişim2017Scopus SJRQ2EFFECT OF DIETARY FISH OIL REPLACEMENT WITH PLANT OILS ON GROWTH PERFORMANCE AND GENE EXPRESSION IN JUVENILE RAINBOW TROUT (ONCORHYNCHUS MYKISS)
Kutluyer, Filiz; Sirkecioglu, Ahmet Necdet; Aksakal, Ercument; Aksakal, Feyza Icoglu; Tunç, Abdullah; Günaydin, Esra
An eight-week feeding trial was conducted to evaluate the effects of total (100%) replacement of dietary fish oil with alternative lipid sources in juvenile rainbow trout. Six iso-nitrogenous and iso-lipidic experimental diets were formulated: CO (14%) -cod liver oil; SSO (14%) -safflower seed oil; SBO (14%) -soybean oil; LO (14%) -linseed oil; SBO (7%) + LO (7%) -a blend of soybean oil and linseed oil; and SSO (7%) + LO (7%) -a blend of safflower seed oil and linseed oil. Growth performance [specific growth rate (SGR), weight gain (WG), food conversion ratio (FCR) and survival rate (SR)], growth hormones [growth hormone (GH-I), insulin-like growth factor-I (IGF-I) and insulin-like growth factor-II (IGF-II)], immune transforming growth factor-beta (TGF-beta) and antioxidant [superoxide dismutase (SOD), glutathione peroxidase (GPx), glutathione reductase (GR), catalase (CAT) and glutathione S-transferase (GST)] response, and heat shock protein 70 (HSP70) mRNA levels were determined in muscle and liver. Our data indicated that final weight, weight gain, FCR and SGR showed significant difference among the six dietary treatments (P<0.05) while there were no significant differences in survival rate between the rainbow trout from supplement fed groups and control group. HSP70 mRNA level expression in muscle was higher in fish fed SSO (P<0.05) while highest level in liver was obtained from fish fed SBO compared to the other treatments (P<0.05). There were no significant differences among treatments for TGF-beta mRNA expression level in muscle and liver. In conclusion, growth performance and expression levels of growth hormones, antioxidants, HSP70, except TGF-beta were affected by five separate lipid sources. In addition, LO positively increased growth performance of juvenile rainbow trout by means of preventing oxidative stress and HSP70 and, enhanced expression of growth hormone related gene.
AtıfWoS28OpenAlex29İncele