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Influence of pretreatment on shear strength of various wood species

Uysal B.

Article | 2006 | Journal of Applied Polymer Science100 ( 1 ) , pp.245 - 252

A study was conducted to determine the effects of wood pretreatment on the bonding strength of wood materials. The woods used for the test samples (based on BS EN 204) were oriental beech (Fagus orientalis Lipsky), Scotch pine (Pinus sylvestris L.), oak (Quercus petreae Liebl.), and chestnut (Castanea sativa Mill.). They were impregnated with Tanalith-C, creosote, and Protim 230 WR-paraffin by full-cell methods according to ASTM D 1413-76 standards and the directions of the manufacturers. After impregnation, shear strength tests (based on BS EN 205) were applied on the samples bonded with poly(vinyl acetate) (PVAc), Desmodur-VTKA, a . . .nd Pattex fast. The highest shear strength was obtained in nonimpregnated (control) and PVAc-D1 glued oak (5.328 N/mm 2), and the lowest shear strength was obtained in Protim 230 WR-paraffin and Pattex fast glued chestnut (0.169 N/mm2). Accordingly, the impregnation process negatively affected the adhesive bonding strength. Impregnation chemicals, especially containing oily or similar substances, could not be proposed for wood elements exposed to shear strength. © 2006 Wiley Periodicals, Inc Daha fazlası Daha az

Map position of phosphoglucomutase (Pgm) locus on autosome IV of house fly (Diptera : Muscidae)

Kandemir, Irfan | Kandemir, Gaye | Kence, Meral | Kence, Aykut

Article | 2006 | JOURNAL OF ECONOMIC ENTOMOLOGY99 ( 6 ) , pp.2087 - 2090

We determined the map position of phosphoglucomutase (Pgm) locus on autosome IV of housefly, Musca domestica L. (Diptera: Muscidae), by using three and five point linkage test crosses. Test strains had visible mutant markers (car, bwb, cyw, and aabys). We analyzed 1,738 offspring in total from two groups of single-pair matings by electrophoresis. Here, we report the linkage of Pgm locus to autosome IV loci curly wing (cyw) and yellow eyes (ye) with recombination frequency of 16.9 and 1.1%, respectively. We combined the distances calculated from this study and the previously published data. An updated linkage map of the M. domestica . . .L. Autosome IV was drawn based on combined data in terms of real map units obtained from the mapping function Daha fazlası Daha az

Properties of composite portland cement produced with steel and blast furnace slags [Çelikhane ve yüksek firm cürufu katkili portland çimentosunun özellikleri]

Özkan Ö.

Article | 2006 | Teknik Dergi/Technical Journal of Turkish Chamber of Civil Engineers17 ( 3 ) , pp.3893 - 3902

During iron production granulated blast furnace slag (GYFC) and steel slag (ÇC) are produced as a by-product. These products, which are produced approximately 50 million tones per year, pose a great threat to environment. In this study, GYFC and ÇC were exchanged with Clinker-gypsum mixture and 22 different combinations were produced. Specific surface, specific gravity, volume expansion, Vicat setting time, compressive and flexural strengths, sulfate resistance and durability to high temperature tests were conducted on 22 different cements that were produced. In case of replacement 50 % Clinker with mixtures of ÇC and GYFC has given . . . best result Daha fazlası Daha az

Crystal structure of trans-(1RS,3RS)-2-N,N'-dimethylaminomethyl-1,3-dithiolane-1,3-dioxide

GültekIn Z. | Hökelek T.

Note | 2006 | Analytical Sciences: X-ray Structure Analysis Online22 ( 2 ) , pp.3893 - 3902

The title compound, C6H13NO2S2, consists of a five-membered dithiolane ring with one O atom bonded to each S atom and a dimethylaminomethyl group at the 2-position. The asymmetric unit contains three molecules. All of the S1, S2 and C1 atoms are likely to be stereogenic. 2006 © The Japan Society for Analytical Chemistry.

Tularemia, a reemerging disease in northwest Turkey: Epidemiological investigation and evaluation of treatment responses

Celebi, Gueven | Baruonu, Fatma | Ayoglu, Ferruh | Cinar, Fikret | Karadenizli, Aynur | Birol Ugur, Mehmet | Gedikoglu, Suna

Article | 2006 | JAPANESE JOURNAL OF INFECTIOUS DISEASES59 ( 4 ) , pp.229 - 234

An outbreak of tularemia occurred in three provinces in Turkey in February 2004 and reemerged in the same provinces in February 2005. A total of 61 cases, 54 of which were confirmed with the micro-agglutination test, were diagnosed with oropharyngeal tularemia. No culture for Francisella tularensis was attempted, but PCR for F. tularensis was positive in aspiration material of suppurated lymphadenitis of 7 patients. F. tularensis detection with PCR was negative in water samples, but epidemiologic and environmental findings suggested that contaminated water or food was the cause of the outbreaks. Late initiation antibiotic therapy co . . .uld not prevent suppuration and draining of the involved lymph nodes Daha fazlası Daha az

İlköğretim Öğrencilerinin Matematik Dersine Yönelik Öz-Yeterlik İnanç Düzeyleri Üzerine Bir Çalışma

Yaman, Süleyman | Dede, Yüksel

Article | 2006 | Türkiye Sosyal Araştırmalar Dergisi0 ( 1-2 ) , pp.109 - 119

Öz-yeterlik inancı, davranışları etkilediği için insan davranışlarının gelişiminde belirleyici rol oynar. Bu bağlamda bu araştırmanın amacı, öğrencilerin matematik dersine yönelik öz-yeterlik inanç düzeylerinin, cinsiyet, sınıf düzeyi ve karne puanlarına göre anlamlı bir farklılık gösterip göstermediğinin belirlenmesidir. Bu amaçla, Yaman tarafından geliştirilen ve araştırmacılar tarafından Matematik dersine uyarlanan 30 maddelik Likert tipindeki ölçekten yararlanılmıştır. Ölçeğin güvenirliği için Cronbach Alpha katsayısı 0.86 olarak hesaplanmıştır. Ölçeğin geçerliği ise kapsam geçerliği ile sağlanmıştır. Ölçek, 2004-2005 eğitim-öğr . . .etim yılında ilköğretim 6., 7. ve 8. sınıflarda öğrenim gören ve random yöntemiyle seçilen 262 öğrenciye uygulanmıştır. Verilerin analizi sonucunda, ilköğretim öğrencilerinin matematik dersine yönelik öz-yeterlik inanç düzeylerinin orta seviyede olduğu belirlenmiştir. Ayrıca, öğrencilerin cinsiyete göre matematik dersine yönelik öz-yeterlik inanç düzeylerinin farklılaşmadığı da belirlenmiştir. Self-efficacy belief plays an essential role in development of human behavior as it affects behaviors. It also can be regarded as an effective guide of individual mathematics achievement. In this connection, the aim of this study is to determine whether there is a significant difference among sexes, grades and marks of students in self- efficacy belief levels of students towards mathematics. For this purpose, it has been used a Likert -type scale which was developed by Yaman and adapted to mathematics lessons by researchers. Cronbach Alpha coefficient is calculated as ,86 for reliability of the scale. Moreover, validity of the scale is provided by content validity. The scale was applied on 262 students who were selected by random method and studied at 6th, 7th and 8th grades of primary schools in 2004-2005 educational terms. At the end of analyzing data, it has been found out that self- efficacy belief levels of primary graders towards mathematics are at middle level. However, it has also been determined that there is no difference in self- efficacy belief levels of primary graders towards mathematics according to sex Daha fazlası Daha az

Valuation of serum purine catabolism enzymes and nitric oxide level in the patients with recurrent aphthous ulceration

Gurel, A. | Altinyazar, C. | Armutcu, F. | Unalacak, M. | Koca, R.

Conference Object | 2006 | FEBS JOURNAL273 , pp.165 - 165

31st Congress of the Federation-of-European-Biochemical-Societies (FEBS) -- JUN 24-29, 2006 -- Istanbul, TURKEY WOS: 000238914001148

Effect of steroid treatment on serum oxidant-antioxidant system and interleukin levels in pediatric patients with asthma

Mungan, G. | Guven, B. | Can, M. | Acikgoz, S. | Ustundag, G. | Tuncer, T.

Conference Object | 2006 | FEBS JOURNAL273 , pp.351 - 351

31st Congress of the Federation-of-European-Biochemical-Societies (FEBS) -- JUN 24-29, 2006 -- Istanbul, TURKEY WOS: 000238914002399

Parotis bezi lipomu olan iki olguda ultrasonografi ve bilgisayarlı tomografi bulguları

Özer, Tülay | Özdemir, Hüseyin | Savranlar, Ahmet | Mahmutyazıcıoğlu, Kamran

Article | 2006 | Erciyes Tıp Dergisi28 ( 1 ) , pp.35 - 37

Lipomlar sık izlenen benign yumuşak doku kitleleri olmalarına rağmen parotis bezinde oldukça nadir görülürler. Bu lezyonlar ultrasonografide (US) genellikle hipoekoik kitle şeklinde izlenirler ve bilgisayarlı tomografide (BT) düşük yağ dansiteleri ile tanınabilirler. Parotis bezinde lipom tespit ettiğimiz iki olgunun US ve BT bulgularını sunuyoruz. Although lipomas are common benign soft tissue neoplasms, they are rarely found in the parotid gland. These lesions are usually observed as hypoechoic masses in ultrasonography (US) and are recognized by their low fat density in computerized tomography (CT). We report the findings of US a . . .nd CT in two cases which were determined by the lipoma of the parotid gland Daha fazlası Daha az

Map position of phosphoglucomutase (Pgm) locus on autosome IV of house fly (Diptera: Muscidae)

Kandemir I. | Kandemir G. | Kence M. | Kence A.

Article | 2006 | Journal of Economic Entomology99 ( 6 ) , pp.2087 - 2090

We determined the map position of phosphoglucomutase (Pgm) locus on autosome IV of housefly, Musca domestica L. (Diptera: Muscidae), by using three and five point linkage test crosses. Test strains had visible mutant markers (car, bwb, cyw, and aabys). We analyzed 1,738 offspring in total from two groups of single-pair matings by electrophoresis. Here, we report the linkage of Pgm locus to autosome IV loci curly wing (cyw) and yellow eyes (ye) with recombination frequency of 16.9 and 1.1%, respectively. We combined the distances calculated from this study and the previously published data. An updated linkage map of the M. domestica . . .L. Autosome IV was drawn based on combined data in terms of real map units obtained from the mapping function. © 2006 Entomological Society of America Daha fazlası Daha az

Familial mediterranean fever associated with ankylosing spondylitis: A case report

Özdolap, Şenay | Sarıkaya, Selda | Aktunç, Erol

Article | 2006 | Romatizma Dergisi (. Turkish Journal of Rheumatology)21 ( 1 ) , pp.31 - 33

Ailevi Akdeniz Ateşi (AAA), etiyolojisi bilinmeyen otozomal resesif bir hastalıktır. AAA'de eklem tutulumunun nadir görülen bir formu genellikle HLAB27 negatif spondilartropatidir. Bu hastalarda sakroiliit ile birlikte inflamatuvar boyun ve bel ağrısı da gözlenir ve lumber ve servikal direk grafiler normal olabilir veya minimal değişiklik saptanabilir. Bu olgu sunumunda, klinik ve radyolojik bulgularına göre ankilozan spondilit (AS) tanısı koyduğumuz AAA'li bir hasta sunulmuştur. Familial Mediterranean fever (FMF) is an autosomal recessive disease of unknown origin. A less common manifestation of joint involvement in FMF is spondyla . . .rtropathy, which is almost always HLA B27 negative. In these patients, along with sacroiliitis, inflammatory neck and back pain is also present producing minimal or no radiographic changes on plain films of lumbar and cervical spine. In this report, we presented a patient with FMF whom had been diagnosed to be ankylosing spondilitis (AS) in the light of some clinical and radiological findings Daha fazlası Daha az

Üre ve boraks çözeltili güneş havuzlarının ısı depolama karakteristiklerinin deneysel olarak incelenmesi

Kurt, Hüseyin | Özkaymak, Mehmet | Deniz, Emrah

Article | 2006 | Mühendislik Bilimleri Dergisi12 ( 3 ) , pp.449 - 455

Güneş havuzları, güneş enerjisini toplayan ve depolayan düşük maliyetli basit bir sistemdir. Yapılan bu çalışmada, güneş havuzunda, farklı yoğunluklara sahip üre ve boraks çözeltilerinin doğal ortamda ısı depolama karakteristikleri deneysel olarak incelenmiştir. Havuz içerisinde farklı konsantrasyonlarda yoğunluk gradyeni oluşturularak, sıcaklık ve yoğunluk gradyenlerindeki değişim dört farklı deneyde gözlemlenmiştir. Aynı dış ortam şartlarında üre çözeltili havuzda maksimum 28 °C depolama sıcaklığı ölçülürken, boraks çözeltili havuzda maksimum 36 °C depolama sıcaklığı ölçülmüştür. Havuz tabanı ile yüzeyi arasındaki sıcaklık farkı, . . .üre çözeltili havuzda 13 °C olurken, boraks çözeltili havuzda 17 °C olmuştur. Bu sonuçlara göre, boraks çözeltili havuzun ısı depolama karakteristiğinin, üre çözeltili havuzun ısı depolama karakteristiğinden daha iyi olduğu tespit edilmiştir. Salt gradient solar ponds are simple and low cost solar energy system for collecting and storing solar energy. In this study, heat storage characteristic of urea and borax solutions in the solar pond were examined experimentally. Establishing density gradients in different concentration, variations in the temperature and density profiles were observed in four different experiments. Maximum storage temperatures were measured as 28°C and 36 °C for the ponds with urea and borax solution, respectively. The temperature difference between the bottom and the surface of the pond were measured as 13 °C for urea and 17 °C for borax- solutions. According to these results, heat storage characteristic of the solar pond with borax solution was found to be better than urea solution Daha fazlası Daha az

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