250 research outputs found
Türk Dili ve Anlatım 9. sınıf ders kitabı
No full text#nofulltext# --- Yelten, Muhammet (Arel Author)
Ibrahim el-Antaki's divan called Burhanul-Burhan-examination and verification
No full textDoktora TeziBu araştırma, Arap ve İslam kültür mirasına katkı sağlamak amacıyla, şair İbrahim el-Antaki'nin (H. 926-M. 1520) "Burhanu'l-Burhan" adlı divanının yazma nüshasını incelemektedir. Başka bir eseri bulunmayan ve çok tanınmayan yazarın bu eseri, araştırmacılar ve muhakkikler tarafından yeterince ele alınmamıştır. Yazarın şiirleri dönemin toplumsal yapısını, halk kültürünü, geleneklerini ve karakteristik özelliklerini yansıtmasına rağmen, eser uzun süre yazarına atfedilmemiştir. Divan, dönemin toplumsal entelektüel seviyesini ortaya koyması ve günümüz kültürüyle karşılaştırma imkânı sunması bakımından önem arz etmektedir. Araştırmada bilimsel inceleme ilkeleri ve tahkik kuralları çerçevesinde yazarın biyografisi, eserin yazara aidiyeti, divanın anlaşılmayan kasidelerinin ve aruz vezinlerinin tespiti, divandaki aruz, dil ve gramer hatalarının tashihi ile şiirlerdeki Beyan ve Bediî sanatlarının özellikleri incelenmiştir.This research examines the manuscript of the divan named "Burhanu'l-Burhan" by poet Ibrahim al-Antaki (H. 926-A.D. 1520) in order to contribute to the Arab and Islamic cultural heritage. This work of the author, who has no other works and is not very well known, has not been sufficiently studied by researchers and scholars. Although the author's poems reflect the social structure, folk culture, traditions and characteristic features of the period, the work has not been attributed to its author for a long time. The divan is important in terms of revealing the social intellectual level of the period and providing an opportunity for comparison with today's culture. In the research, the following issues were addressed within the framework of scientific examination principles and investigation rules: the author's biography, the work's belonging to the author, the detection of the divan's incomprehensible odes and aruz meters, the correction of aruz, language and grammar errors in the divan, and the characteristics of the arts of Beyan and Bediî in the poems were examined
Red tides of the dinoflagellate Noctiluca scintillans associated with eutrophication in the Sea of Marmara (the Dardanelles, Turkey)
No full textThis investigation focused on weekly variations in cell density and volume of the dinoflagellateNoctiluca scintillans between March 2001 and January 2004 in the Dardanelles. March-June andOctober-December periods were excessive bloom periods. During the bloomperiods the density of N. scintillans reached 2.20 × 105 cells L-1 witha volume of 1.32 × 1012 µm3 L-1. In addition tothe high surface density, there was an increase in subsurface waters duringthe blooms. The bloom of N. scintillans, like that of diatom and otherdinoflagellate blooms, was associated not only with eutrophication, but alsowith stable temperatures and salinities
and three dinoflagellates in the Dardanelles (Turkish Straits System)
No full textThis study focuses on the synchronous blooms of the coccolithophore Emiliania huxleyi and three dinoflagellates Prorocentrum micans, Ceratium furca Par. furca and Cerathum fusus var. seta observed between 7 June and 11 July 2003 in the Dardanelles. An analysis of the vertical distribution of the E. huxleyi population size with respect to various environmental parameters was discussed. Additionally, inorganic nutrients and phytoplankton interactions were investigated in relation to the bloom conditions and hydrography of the Dardanelles, The algal bloom started in nearby Izmit Bay (eastern end of the Sea of Marmara) in early June, then quickly spread through the Sea of Marmara and continued until mid-July. Thermal stratification was observed between different water masses at the time of sampling. During the bloom period, cell density of F. huxleyi ranged from 3.58 x 10(7) to 2.55 x 10(8) cells l(-1) in the superficial layer. Prorocentrum micans was the second most-abundant species and the cell numbers ranged from 1.0 x 10(6) cells l(-1) to 3.3 x 10(6) cells l(-1). Other abundant species in this area included C. furca var. furca and C. fusus Par. seta
Experimental and theoretical investigation of the fluid behavior during polymeric fiber formation with and without pressure
No full textThe fabrication of polymeric micro/nanofibers is gaining attention due to their use in an array of applications including tissue engineering scaffolds, nanosensors, and fiber-reinforced composites. Despite their versatile nature, polymeric fibers are widely underutilized due to the lack of reliable, large-scale production techniques. Upon the discovery of centrifugal spinning and, recently, pressurized gyration techniques, new research directions have emerged. Here, we report a comprehensive study detailing the optimal conditions to significantly improve the morphology, homogeneity, and yield of fibers of varying diameters. A series of polymeric fibers was created using a 21 wt.% solution of polyethylene oxide in distilled water and the fluid behavior was monitored inside a transparent reservoir using a high-speed camera. Fabrication of the fibers took less than 1 s. Using centrifugal spinning, we studied the formation of the fibers at three different rotational speeds, and for pressurized gyration, one rotational speed was studied with three different nitrogen gas pressures. Using the pressurized gyration technique at a gas pressure of 0.3 MPa, there was significant improvement in the production yield of the fibers. We found a strong correlation between the variation of pressure and the rate of the solution leaving the reservoir with the improved morphology of the fibers. The use of reduced power techniques, like centrifugal spinning and pressured gyration, to yield high-quality nonwoven nanofibers and microfibers in large quantities is important due to their use in rapidly expanding markets. (C) 2019 Author(s)
Çanakkale Bo?azı (Türk Bo?azlar Sistemi) yüzey sularında fitoplankton, besin tuzları ve klorofil a da meydana gelen zamansal de?işimler: Haftalık zaman aralı?ında bir kıyısal istasyon örne?i
No full textIn this study, weekly distributions of inorganic nutrients and phytoplankton cell volumes were investigated in relation to the hydrology of the Dardanelles. The data were collected between March 2001 and March 2002. NO2-+NO3-, PO4-3, and SiO4 concentrations ranged between 0.050-6.887 mu M, 0.051-1.152 mu M, and 0.64-10.74 mu M, respectively. During the study, the highest nutrient values were measured between late fall and mid-winter. Inorganic N:P and Si:P ratios in the surface water were lower due to high PO4-3 concentrations. The chlorophyll a concentrations ranged from 0.03 to 8.67 mu g L-1. Phytoplankton cell density and cell volume ranged from 1.54E + 05 to 6.46E + 07 cell L-1 (mean 7.65E + 06; SD 1.44E + 07 cell L-1) and from 2.51E + 09 to 8.66E + 10 mu m(-3) L-1 (mean 1.98E + 10; SD 1.86E + 10 mu m(-3) L-1) between less productive and high productive periods. During the study period, 8-10 species controlled the phytoplankton community structure in the coastal zone of the Dardanelles. Others did not contribute to the phytoplankton population and they only can be considered as accessory species, which do not cause significant fluctuations in the phytoplankton production. Relationships between chlorophyll a, cell density, and cell volume of phytoplankton revealed that chlorophyll a is rather controlled by the cell density than by the cell volume. Furthermore, the physicochemical variables, such as nutrients and chlorophyll a and phytoplankton cell density and cell volume, are affected by the counter flows in the Dardanelles. Phytoplankton population was more limited by nitrogen than by phosphate due to extra phosphate inputs coming from various sources, such as domestic waste waters as well as the vertical mixing between upper and lower layers.Canakkale Onsekiz Mart University [COMU-BAP-2000/22]This short-term research program has been supported by Research Fund of the Canakkale Onsekiz Mart University (COMU-BAP-2000/22). We gratefully thank the Dr. Sukru Besiktepe, the former director, and Dr. Suleyman Tugrul, head of the Department of Chemical Oceanography, Institute of Marine Sciences, Middle East Technical University, and the technicians of the Institute of Marine Science, the Middle East Technical University (METU-IMS) for their help and instructions in nutrient analyses
Winter bloom of coccolithophore Emiliania huxleyi and environmental conditions in the Dardanelles
No full textFollowing a summer bloom of coccolithophore Emiliania huxleyi (Lohmann) Hay & Mohler, 1967, in 2003, a winter bloom was observed for the first time between late December 2003 and early January 2004 in the Dardanelles. Microscopic observations showed that the cell dimensions of E. huxleyi (Ehux) varied from 9.85 to 13.50 mu m in diameter (mean: 11.20 +/- 1.38 mu m). While Ehux revealed a relatively small population density (1.60 x 10(4) cells L-1) in early December 2003, the bloom started in middle December 2003 (7.86 x 10(6) cells L-1) and then peaked in early January 2004 (5.03 x 10(7) cells L-1) in the superficial layer. The peak dramatically decreased in late January 2004 (7.50 x 10(6) cells L-1). Ehux was the dominant species and represented about 90.0% of the phytoplankton assemblage. The bloom started flourishing after the diatom and dinoflagellate blooms under nitrogen depletion and moderate light, temperature and salinity conditions. Water temperature (10.31 +/- 1.14 degrees C) and salinity values (27.05 +/- 0.88 ppt) were usually stabile. Surface chlorophyll-a concentrations ranged from 1.23 to 2.32 mu g L-1 during the bloom. The ratios of N:P (mean: 4.12 +/- 2.22) and Si:P (40.35 +/- 16.25) of the bloom period were lower than those of the non-bloom periods.Turkish Scientific and Technical Research Council, Environmental, Atmospheric, Earth and Marine Sciences Research Group (TUBITAK-CAYDAG) [101Y081]This study was supported by the Turkish Scientific and Technical Research Council, Environmental, Atmospheric, Earth and Marine Sciences Research Group (TUBITAK-CAYDAG, project no. 101Y081)
Turkish-addressed social sciences citation index articles: What does the big picture tell us?
No full textThis study investigates articles in the SSCI written in the English language and published in the ‘Education & Educational Research’ area between 1980 and 2019. In the study, bibliometric methods were used to detect the number of SSCI articles published worldwide, and also the articles with a Turkish author address entered, meaning at least one author provided Turkey as their location. In addition, analysis was conducted according to various variables (e.g., research areas, publication year, number of authors, and source titles). The bibliometric data were obtained from the Web of Science Core Collection database. With regards to the ‘Education & Educational Research’ area, the analysis indicated the dominance of English-speaking countries in terms of the number of SSCI-indexed articles and those that had been cited the most. This finding appears to be affected by the majority of journals indexed in SSCI only accepting articles written in the English language. In terms of the number of SSCI articles published in the area of ‘Education & Educational Research’, Turkey was shown to be ranked seventh worldwide. Within Turkey, the number of SSCI articles for the ‘Education & Educational Research’ area ranked second, after ‘Business & Economics’. In comparison to the overall worldwide trend, the study's findings suggest that Turkish researchers have a tendency towards publishing their articles in mainly Turkey-originated journals with low impact factors. Factors that may affect this tendency and the potential implications of these findings are discussed, together with the limitations of the study and suggestions for further research. © 202
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