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Empirical Attenuation Relationships For Western Anatolia, Turkey, Ni̇hal Akyol, Özlem Karagöz
Empirical Attenuation Relationships For Western Anatolia, Turkey, Ni̇hal Akyol, Özlem Karagöz
Turkish Journal of Earth Sciences
Seismic hazard studies have become progressively more important for earthquake engineering applications in western Anatolia, which contains one of the world’s best examples of a rapidly extending intra-continental tectonic regime. A two-stage regression analysis was applied to peak ground acceleration and 5%-damped spectral acceleration values of 168 recordings from 49 earthquakes in order to develop empirical attenuation relationships which can be used to predict ground motion for western Anatolia. Moment magnitudes for earthquakes range between 4.0 and 6.4 while the hypocentral distances range between 15 and 200 km in our dataset. Site classifications, as one of the predictor variables for …
Cover And Contents
Turkish Journal of Veterinary & Animal Sciences
No abstract provided.
Cover And Contents
Turkish Journal of Veterinary & Animal Sciences
No abstract provided.
Vibrational Analysis Of Flavone, Yusuf Erdoğdu, Ozan Ünsalan, M. Tahi̇r Güllüoğlu
Vibrational Analysis Of Flavone, Yusuf Erdoğdu, Ozan Ünsalan, M. Tahi̇r Güllüoğlu
Turkish Journal of Physics
In this study, the experimental and theoretical study on the structures and vibrations of flavone are presented. FT-IR and FT-Raman spectra of the molecule have been recorded in the 400-4000 cm^{-1} region and the 5-3500 cm^{-1} region, respectively. The molecular geometry and vibrational frequencies of flavone in the ground state have been calculated by using Density Functional method (B3LYP) in conjunction with 6-311++G(d,p) and 6-31++G(d) as basis sets.
First-Principles Calculations Of Structural, Electronic And Optical Properties Of Zinc-Blende Si_X Ge_{1-X} C Alloys, Ahmed Djedid, Boucif Abbar, Oukacha Abbes
First-Principles Calculations Of Structural, Electronic And Optical Properties Of Zinc-Blende Si_X Ge_{1-X} C Alloys, Ahmed Djedid, Boucif Abbar, Oukacha Abbes
Turkish Journal of Physics
We present first-principles calculations of the structural, electronic and optical properties of zinc-blende Si_x Ge_{1-x} C alloys by application of the full potential linearized augmented plane wave (FP-LAPW) method. In this approach, the generalized gradient approximation was used for the exchange-correlation energy which is based on the optimization of total energy and corresponding potential. The effect of composition on lattice constants, bulk modulus, band gap, real part of the dielectric function \varepsilon \left(0 \right) and refractive index n(0) was investigated. These parameters were found to depend nonlinearly on alloy composition x, except the bulk modulus and the lattice parameter, which …
Geochemistry Of The Middle Miocene Collision-Related Yamadaği ( Eastern Anatolia) Calc-Alkaline Volcanics, Turkey, Taner Eki̇ci̇, Musa Alpaslan, Osman Parlak, Ali̇ Uçurum
Geochemistry Of The Middle Miocene Collision-Related Yamadaği ( Eastern Anatolia) Calc-Alkaline Volcanics, Turkey, Taner Eki̇ci̇, Musa Alpaslan, Osman Parlak, Ali̇ Uçurum
Turkish Journal of Earth Sciences
Major, trace element and K-Ar age determinations are reported for a suite from the Yamadağı volcanics in the Eastern Anatolia. The exposed rocks mainly consist of medium-potassium calc-alkaline basaltic andesites, andesites and dacites. Petrographical data exhibit disequilibrium mineral textures, such as resorption of the ferromagnesian phases, clinopyroxene-mantled orthopyroxene, and sieve-textured plagioclases. The Yamadağı volcanics have a calk-alkaline character, and trace element characteristics exhibit that the volcanics resemble subduction zone volcanics and/or volcanics assimilated by continental crust. K/Ar age determinations show that the Yamadağı volcanics were formed during the 12 ± 0.5 - 15 ± 0.5 Ma time interval. Geochemical characteristics …
Conversion Efficiency Calculations For Euv Radiation Emitted From Laser-Produced Tin Plasmas, Betül Atalay, Necla Kenar, Ari̇f Demi̇r
Conversion Efficiency Calculations For Euv Radiation Emitted From Laser-Produced Tin Plasmas, Betül Atalay, Necla Kenar, Ari̇f Demi̇r
Turkish Journal of Physics
Ni-like and Co-like EUV radiation between 11--17 nm emitted from laser produced tin plasmas was modelled by using the hydrodynamic/atomic physics code EHYBRID. The atomic data were obtained using the Cowan code. The effects of driving laser pulse duration and the laser intensity with different wavelengths were investigated. The maximum conversion efficiency was calculated as 13.4% for a 266 nm Nd:YAG laser with 1 \times 10^{13} W/cm^2 pulse intensity and 5 ns pulse duration.
Hormonal Factors Of Anti-Mutagenesis Regulation, Mekhtizadeh Emin Rza
Hormonal Factors Of Anti-Mutagenesis Regulation, Mekhtizadeh Emin Rza
Turkish Journal of Biology
The genetic activity of phytohormones (Phs) was studied. The investigation was conducted with 4 plants (Allium fistulosum, Lycopersicon esculentum, Triticum aestivum, and Gossypium hirsutum). The action of Phs on plant genetic processes was evaluated by chromosome aberration testing. It was observed that the exogenic Phs exerted a stabilizing effect on spontaneous plant mutagenesis. The use of Phs before and after the action of mutagenic factors contributed to an increase in the anti-mutational or reparative function of the plants´ genes. It was observed that the Phs exhibited genoprotective or reparative activity. The absence of clearly expressed dependence of these effects on …
Identification Of Lactococcus Lactis Subsp. Isolates Based On Their Cell Wall Protein Profiles And Plasmid Contents, Mehtap Üstün, Banu Özden, Ömer Şi̇mşek, Mustafa Akçeli̇k
Identification Of Lactococcus Lactis Subsp. Isolates Based On Their Cell Wall Protein Profiles And Plasmid Contents, Mehtap Üstün, Banu Özden, Ömer Şi̇mşek, Mustafa Akçeli̇k
Turkish Journal of Biology
In this study, among the total 50 lactococci isolates, 44% L. lactis subsp. lactis, 28% L. lactis subsp. lactis biovar. diacetylactis and 28% L. lactis subsp. cremoris strains were identified by their phenotypic characterization. According to the cell wall protein patterns, 8.6, 12.5, 14.7, 20.3, 23.4, 25.4, and 31.8 kDa proteins were found identical within 82% of isolates. Moreover 93% of L. lactis subsp. cremoris strains contained a unique 157.8 kDa protein; however, L. lactis subsp. lactis and L. lactis subsp. lactis biovar. diacetylactis had no unique protein in their groups. Also a key plasmid profile, which would be used …
A Cytogenetical Study On Some Plants Taxa In Nizip Region (Aksaray, Turkey), Meryem Öztürk, Esra Marti̇n, Muhi̇tti̇n Di̇nç, Ahmet Duran, Ayşe Özdemi̇r, Özlem Çeti̇n
A Cytogenetical Study On Some Plants Taxa In Nizip Region (Aksaray, Turkey), Meryem Öztürk, Esra Marti̇n, Muhi̇tti̇n Di̇nç, Ahmet Duran, Ayşe Özdemi̇r, Özlem Çeti̇n
Turkish Journal of Biology
This cytological study was performed in 19 taxa grown naturally in Nizip region (Aksaray). These taxa are Conringia perfoliata (C.A.Mey.) Busch, Alyssum strigosum Banks & Sol. subsp. strigosum, Alyssum murale Waldst. & Kit. subsp. murale var. murale, Matthiola longipetala (Vent.) DC. subsp. bicornis (Sibth. & Sm.) P.W.Ball., Erysimum thyrsoideum Boiss. subsp. thyrsoideum (Brassicaceae), Silene alba (Mill.) E.H.L. Krause subsp. divaricata (Reichb.) Walters, Silene conoidea L., Silene otites (L.) Wibel. (Caryophyllaceae), Linum austriacum L. subsp. austriacum (Linaceae), Medicago x varia Martyn., Onobrychis argyrea Boiss. subsp. argyrea (Fabaceae), Astrodaucus orientalis (L.) Drude (Apiaceae), Centaurea patula DC., Centaurea solstitialis L. subsp. solstitialis, Cnicus …
Antibacterial Activities Of Extracts From Some Turkish Endemic Plants On Common Fish Pathogens, Hakan Türker, Arzu Bi̇ri̇nci̇ Yildirim, Fatma Pehli̇van Karakaş, Hi̇lal Köylüoğlu
Antibacterial Activities Of Extracts From Some Turkish Endemic Plants On Common Fish Pathogens, Hakan Türker, Arzu Bi̇ri̇nci̇ Yildirim, Fatma Pehli̇van Karakaş, Hi̇lal Köylüoğlu
Turkish Journal of Biology
Antibacterial activities of 24 alcoholic and aqueous extracts from 8 endemic Turkish plants (Crocus abantensis, Crocus ancyrensis, Galanthus plicatus subsp. byzantinus, Paronychia chionaea, Astragalus gymnolobus, Trifolium pannonicum subsp.elongatum, Eryngium bithynicum, and Convolvulus galaticus) of 7 different families were screened. Antibacterial activity was carried out with 5 different fish pathogens (Aeromonas hydrophila, Yersinia ruckeri, Streptococcus agalactia, Lactococcus garvieae, and Enterococcus faecalis). Crude extracts of endemic plant extracts were applied against the bacteria using the disc diffusion method under in vitro conditions. A. hydrophila was the only inhibited bacteria from all alcoholic and aqueous extracts of C. ancyrensis, G. plicatus, T. pannonicum, …
Changes In Anatomical Structure And Levels Of Endogenous Phytohormones During Leaf Rolling In Ctenanthe Setosa Under Drought Stress, Ni̇hal Kutlu, Rabi̇ye Terzi̇, Çi̇ğdem Tekeli̇, Gülcan Şenel, Peyami̇ Battal, Asim Kadioğlu
Changes In Anatomical Structure And Levels Of Endogenous Phytohormones During Leaf Rolling In Ctenanthe Setosa Under Drought Stress, Ni̇hal Kutlu, Rabi̇ye Terzi̇, Çi̇ğdem Tekeli̇, Gülcan Şenel, Peyami̇ Battal, Asim Kadioğlu
Turkish Journal of Biology
Leaf rolling occurs as a response to water deficit and its level increases as the drought period is progressing in plants. Changes in anatomical structure and levels of endogenous phytohormones were investigated under drought stress during leaf rolling in Ctenanthe setosa. Leaf water potential (\Psi_{leaf}), some anatomical parameters, and the levels of phytohormones were determined at different visual levels of leaf rolling from 1 to 4. \Psi_{leaf}, thickness of mesophyll and lamina, and width/length ratio of hypodermis cells of leaves decreased while leaf rolling level increased. Diameters of xylem vessels and median vein, and length of upper and lower stomatal …
In Vitro Screening Of The Antibacterial Activity And Identification Of Bioactive Compounds From Plants Against Selected Vibrio Spp. Pathogens, Anjana Sharma, Virendra Kumar Patel
In Vitro Screening Of The Antibacterial Activity And Identification Of Bioactive Compounds From Plants Against Selected Vibrio Spp. Pathogens, Anjana Sharma, Virendra Kumar Patel
Turkish Journal of Biology
In vitro investigation of the vibriocidal activity of acetone extracts of Saraca indica Linn (Caesalpinaceae) and Datura stramonium Linn (Solanaceae), and aqueous extracts of Allium sativum Linn (Liliaceae) showed that they have antibacterial activity against multidrug-resistant human pathogens. Disc diffusion assay showed that there was significant concentration-dependent antibacterial activity against standard strains of Vibrio cholerae, Vibrio parahaemolyticus, and 12 multidrug-resistant isolates of Vibrio cholerae non-O1. The crude plant extracts had zones of inhibition in the range of 7-27 mm against 1 or more test bacteria, with MIC ranging from 2.5 to 15 mg/ml. Acetone extracts of S. indica and D. …
The Antibacterial And Antifungal Effects Of Rhododendron Derived Mad Honey And Extracts Of Four Rhododendron Species, Ömer Ertürk, Fatma Pehli̇van Karakaş, Derya Pehli̇van, Nurşah Nas
The Antibacterial And Antifungal Effects Of Rhododendron Derived Mad Honey And Extracts Of Four Rhododendron Species, Ömer Ertürk, Fatma Pehli̇van Karakaş, Derya Pehli̇van, Nurşah Nas
Turkish Journal of Biology
The antibacterial and antifungal activities of mad honey and the crude extracts (leaves and flowers) of Rhododendron ponticum L. subsp. ponticum, Rhododendron luteum L., Rhododendron smirnovii L., and Rhododendron caucasicum L. (Ericaceae) were investigated. A total of 17 microbial organisms belonging to 16 species of bacteria, namely Staphylococcus aureus, Streptococcus salivarius, Klebsiella pneumoniae, Escherichia coli, Salmonella enteritis, Streptococcus pneumoniae, Bacillus cereus, Listeria monocytogenes, Streptococcus mutans, Pseudomonas aeruginosa, Bacillus licheniformis, Micrococcus luteus, Bacillus subtilis, Proteus vulgaris, and Candida albicans were studied using a disk-diffusion and agar dilution (minimal inhibition concentration) method. The antimicrobial activity of the antibacterial and antifungal activity of …
A Comparative Study On Pleurotus Ostreatus (Jacq.) P.Kumm. Cultivated On Different Agricultural Lignocellulosic Wastes, Abdurrahman Dündar, Abdunnasir Yildiz
A Comparative Study On Pleurotus Ostreatus (Jacq.) P.Kumm. Cultivated On Different Agricultural Lignocellulosic Wastes, Abdurrahman Dündar, Abdunnasir Yildiz
Turkish Journal of Biology
For the cultivation of Pleurotus ostreatus (Jacq.) P.Kumm. wheat stalk (WS), cotton stalk (CS), millet stalk (MS), and soybean stalk (SS) were used as the main material and oven-dried lentil straw (LS) was used as an additive material 100:10, 100:15, 100:20 w:w in weight for 100 g of main material (70% moisture). The shortest mycelium growing time (MGT) was 10.2 days, on the SS, while the longest was 18.8 days, on the CS. The shortest first harvest time (FHT) was 30 days, on SS + LS (90:10; w:w), and the longest was 46.4 days, on CS + LS (100:20; w:w). …
Genetic Repairing Through Storage Of Gamma Irradiated Seeds In Inbred Maize (Zea Mays L.), Girjesh Kumar, Prashant Kumar Rai
Genetic Repairing Through Storage Of Gamma Irradiated Seeds In Inbred Maize (Zea Mays L.), Girjesh Kumar, Prashant Kumar Rai
Turkish Journal of Biology
Gamma irradiation can induce beneficial as well as deleterious impacts on chromosome behavior in crop plants. The cytogenetic changes occurring due to the storage of inbred seeds after gamma irradiation in the somatic and gametic cells of Zea mays L. were investigated in this study. A wide spectrum of chromosomal anomalies was encountered in somatic and gametic cells of maize that are gamma irradiated, stored (aged), and treated with a combination of both of these treatments. Gamma rays and ageing treatments induced a number of chromosomal anomalies independently, but a combination of the 2 treatments suppressed the frequency of chromosomal …
Cytogenetic Effects Of Fungicide Applications On Meiosis Of Tomato (Lycopersicon Esculentum Mill.), İlkay Öztürk Çali
Cytogenetic Effects Of Fungicide Applications On Meiosis Of Tomato (Lycopersicon Esculentum Mill.), İlkay Öztürk Çali
Turkish Journal of Biology
In the present study, the cytogenetic effects of the fungicide Agri Fos 400 (400 g/l mono- and di-potassium phosphonate) on meiosis of Lycopersicon esculentum Mill. (Family: Solanaceae) were studied. The fungicide was applied to tomatoes grown in greenhouse conditions at the dosage (400 ml/100 l water) recommended by the manufacturing company and double the recommended dosage (800 ml/100 l water). All dosages of the fungicide Agri Fos 400 caused various abnormalities in meiosis when compared with the control. This situation could lead to a decrease in the productivity of fruits.
Mutagenesis Of Bacillus Thuringiensis Iam 12077 For Increasing Poly (-\Beta-)Hydroxybutyrate (Phb) Production, Pal Adwitiya, Prabhu Ashwini, Arun Kumar Avinash, Rajagopal Badri, Dadhe Kajal, Ponnamma Vomsi, Shivakumar Srividya
Mutagenesis Of Bacillus Thuringiensis Iam 12077 For Increasing Poly (-\Beta-)Hydroxybutyrate (Phb) Production, Pal Adwitiya, Prabhu Ashwini, Arun Kumar Avinash, Rajagopal Badri, Dadhe Kajal, Ponnamma Vomsi, Shivakumar Srividya
Turkish Journal of Biology
A gram-positive bacterium that accumulated PHB was isolated from local garden soil in Bangalore. Based on its morphological and physiological properties, and nucleotide sequence (about 1.5 kb) of its 16S rDNA it was identified as Bacillus thuringiensis IAM 12077. In this study the PHB-producing capacity of putative mutant strains of Bacillus thuringiensis IAM 12077 was evaluated. A Bacillus sp. identified as a Bacillus thuringiensis IAM 12077 strain capable of producing 10%-15% dry cell weight (DCW) PHB when grown in nutrient broth for 48 h was subjected to random mutagenesis [physical (UV) and chemical (acridine orange)]. Among the UV-mutants screened, 19 …
Co-Operative Actions And Degradation Analysis Of Purified Lignocellulose-Degrading Enzymes From Thermomonospora Fusca Bd25 On Wheat Straw, Müni̇r Tuncer, Andrew S. Ball
Co-Operative Actions And Degradation Analysis Of Purified Lignocellulose-Degrading Enzymes From Thermomonospora Fusca Bd25 On Wheat Straw, Müni̇r Tuncer, Andrew S. Ball
Turkish Journal of Biology
In industrial hydrolysis processes the lignocellulose-degrading enzymes may have a potential application as an alternative to chemical treatments because they produce high specificity, mild reaction conditions, no toxic chemical hydrolysis inhibitors, and no loss of substrate due to chemical modifications. The amounts of reducing sugars released from the degradation of wheat straw by the action of endoxylanase, peroxidase, \beta-xylosidase, and \alpha-L-arabinofuranosidase, which were produced by T. fusca BD25,were equal to 3.0 percent, 0.2 percent, 0.3 percent, and 0.2 percent hydrolysis (as xylose equivalents) of the substrate used, respectively, after 10 h of incubation. In the same conditions, the hydrolysis rate …
The Effect Of Environmental Factors On The Growth And Size Structure Of Two Dominant Phytoplankton Species In The Büyükçekmece Reservoir (İstanbul,Turkey), Yelda Aktan, Cenk Gürevi̇n, Zeynep Dorak
The Effect Of Environmental Factors On The Growth And Size Structure Of Two Dominant Phytoplankton Species In The Büyükçekmece Reservoir (İstanbul,Turkey), Yelda Aktan, Cenk Gürevi̇n, Zeynep Dorak
Turkish Journal of Biology
The aim of this study was to investigate seasonal variability in the growth and size structure of dominant phytoplankton species in Büyükçekmece Reservoir, and to determine the environmental factors that affect morphological plasticity in those dominant species. In total, 78 taxa from 8 algal divisions were identified. Bacillariophyta and Chlorophyta were the most important divisions with respect to species number, but cryptomonads Plagioselmis nannoplanctica (Skuja) Novarino, Lucas, and Morrall, and a Cryptomonas sp. were dominant in terms of density and biomass. P. nannoplanctica was the major contributor of biomass in the reservoir. A significant difference in Plagioselmis species biovolume was …
A Fatal Inocybe (Fr.) Fr. Poisoning In Mediterranean Turkey, Mustafa Işiloğlu, Stephan Helfer, Hakan Alli, Ferah Yilmaz
A Fatal Inocybe (Fr.) Fr. Poisoning In Mediterranean Turkey, Mustafa Işiloğlu, Stephan Helfer, Hakan Alli, Ferah Yilmaz
Turkish Journal of Botany
A fatal case of mushroom poisoning by Inocybe rimosa (Bull.) P. Kumm. in Isparta is reported and documented. The description of the poisonous taxon and a short discussion of the case of poisoning are presented.