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Bulunan: 147 Adet 0.085 sn
Ambargo Durumu [1]
Tam Metin [2]
Yazar [90]
Yayın Yılı [1]
Yayın Dili [2]
Dergi Adı [90]
Konu Başlıkları [89]
Hakem Türü [1]
JCR_QUARTILE [1]

Recurrent lupus vulgaris following repeated BCG (Bacillus Calmette Guerin) vaccination

Sasmaz, R | Altinyazar, HC | Tatlican, S | Eskioglu, F | Yurtsever, P

We report a case of lupus vulgaris following BCG (Bacillus Calmette Guerin) vaccination oil the right shoulder. The patient had a history Of lupus vulgaris on his left shoulder that developed following BCG vaccination and was treated successfully eight years ago.

Erişime Açık

Ceric ion initiation of methyl methacrylate from poly(glycidyl azide)-diol

Arslan, Hülya | Eroğlu, Mehmet S. | Hazer, Baki

Polymerization of methyl methacrylate initiated by ceric ammonium nitrate in combination with poly(glycidyl azide)-diol was investigated in aqueous nitric acid. Poly(methyl methacrylate)-b-poly(glycidyl azide) copolymer was obtained. Block copolymer yield was increased using tetrabutyl ammonium hydrogen sulphate as a surfactant. The effect of nitric acid, ceric ions and diol concentration on the block copolymer yield was investigated. Block copolymers were characterized using GPC, 1H-NMR, FTIR, DSC, TGA and fractional precipitation methods.

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DNA gyrase inhibitors: Novobiocin enhances the survival of Pimpla turionellae (Hym., Ichneumonidae) larvae reared on an artificial diet but other antibiotics do not

Büyükgüzel, Kemal

Effects of novobiocin, nalidixic and oxolinic acids, which are potent antibacterial agents, on the survival and development of the hymenopterous endoparasitoid, Pimpla turionellae L. (Ichneumonidae) were investigated alone by rearing the larvae aseptically on chemically defined synthetic diets. Survival of the fifth instar larvae was not significantly affected by diets with different levels of antibiotics tested. A diet containing the lowest level of novobiocin significantly increased yields of pupae and adults. This level also significantly shortened the developmental time for fifth instar bu ...Daha fazlası

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Poly(styrene peroxide) and poly(methyl methacrylate peroxide) for grafting on unsaturated bacterial polyesters

Çakmaklı, Birten | Hazer, Baki | Borcaklı, Mehlika

A new soluble terephthaloyl oligoperoxide (OTP) was synthesized by the reaction of terephthaloyl. peroxide and 2,5-dimethyl 2,5-dihydroperoxy hexane. Thermal polymerization of vinyl monomers (styrene, methyl methacrylate) with OTP yielded poly(styrene peroxide) (PS-P) and poly(methyl methacrylate peroxide) (PMMA-P) which are used in the grafting reactions onto medium chain length unsaturated bacterial polyester obtained from soybean oily acids with Pseudomonas oleovorans poly(3-hydroxy alkanoate), (PHA). PS-g-PHA and PMMA-g-PHA graft copolymers isolated from related homopolymers were character ...Daha fazlası

Denizden çıkarılan kumun beton mukavemetine etkisi (2001)

Özkan, Ömer

1999 yılında meydana gelen depremler sonrasında, kıyı şeridinde bulunan şehirlerde yapı malzemesi olarak kullanılan betonun karışımında deniz kumunun kullanılmasının beton mukavemetine ve dayanımına etkisi tartışılmaya başlanmıştır. Bu çalışmamızda Zonguldak-Alaplı bölgesinde denizden çıkarılan kum ile Zonguldak-Alaplı Çayından çıkarılan kumun mukavemetlerinin zamana göre değişimleri karşılaştırılmıştır. Kullanılan ince agregada. Birim ağırlık, özgül ağırlık, ince madde oranı tayini, organik madde oranı tayini, incelik modülü deneyleri yapılmıştır. Yapılan deneyler neticesinde denizden çıkarıl ...Daha fazlası

Erişime Açık

Graft copolymerisation of methyl methacrylate onto a bacterial polyester containing unsaturated side chains

İlter, Songun | Hazer, Baki | Borcaklı, Mehlika | Atıcı, Oya

Poly(3-hydroxy alkanoate) containing unsaturated side chains was produced by feeding Pseudomonas oleovorans with soybean-oil acid (PHA-soybean). The composition of PHA-soybean were found to be 10 mol-% of unsaturated side chains with the saturated hexanoate, octanoate and decanoate units. Methyl methacrylate (MMA) was thermally grafted on PHA-soybean in the presence of benzoyl peroxide. Fractional precipitation was used to isolate the graft copolymer from related homopolymers. PHA content in copolymer samples was between 15 to 30 mol-%. Graft copolymer samples were kept in hydroquinone to prev ...Daha fazlası

Erişime Açık

Free radical crosslinking of unsaturated bacterial polyesters obtained from soybean oily acids

Hazer, Baki | Demirel, Songun I. | Borcaklı, Mehlika | Eroğlu, Mehmet S. | Çakmak, Miko | Erman, burak

Poly(-3-hydroxy alkanoate) containing unsaturated side chains, PHA-soybean, were produced by feeding Pseudomonas oleovorans with soybean oily acids obtained from soybean oil. Unsaturation of PHA-soybean were found to be 10 mol-% of unsaturated side chains. Main saturated part of the biopolymer was Poly(3-hydroxy octanoate) with minor hexanoate and decanoate units. PHA films were crosslinked via free radical mechanism by means of thermally or under UV irradiation in the presence of benzoyl peroxide, benzophenon, and/or ethylene glycol dimethacrylate (EGDM). Crosslinking yield of the PHA films w ...Daha fazlası

Determination of diffusable hydrogen in duplex stainless stell welds [Dubleks Paslanmaz Çeliklerin Kaynaginda Yaymabilir Hidrojenin Deneysel Tayini]

Kaçar R.

The risk of hydrogen cracking in steel welds depends on a number of interrelated factors, the most important of which is the hydrogen content that originates from the welding consumable. In designing a welding procedure to avoid cracking, it is necessary to define the hydrogen level associated with a given welding consumable, using standard methods. In this study, the Oerlikon/Yanaco hydrogen gas analysis method, which is widely used to determine the hydrogen content of ordinary ferritic steel welds, was modified, and thus the time-temperature relationship of hydrogen evolution from duplex sta ...Daha fazlası

Congenital true complete symphalangism of all proximal interphalangeal joints of hands with carpal anomalies: a case report.

Tuncay I. | Akpinar F. | Tosun N.

Symphalangism is a rare condition which manifests in either PIP or DIP joint congenital fusion. Symphalangism may be with some other skeletal deformities. In our case, all PIP joints of both hands were fused with bilateral hypoplasia of carpal bones and Minaar type III lunatotriquetral coalition congenitally. No motion was detected in PIP joints with absence of cutaneous creases over all PIP joints. Radiologically, carpal hypoplasia and lunatotriquetral coalition were seen in all fingers with the absence of PIP joints. The patient's skeletal survey revealed no other pathology. He had no compla ...Daha fazlası

Experimental investigation of vegetable oil usage as alternative fuel in diesel engines [Dizel Motorlarinda Alternatif Yakit OlaraK Bitkisel Yag Kullaniminin Deneysel Incelenmesi]

Yücesu H.S. | Altin R. | Çentinkaya S.

In this experimental study, the effect of the usage of vegetable oils, as alternative fuels, on engine performance and exhaust emissions in a single cylinder diesel engine were investigated. No 2-D diesel fuel and nine different oils (raw sunflower oil, raw cottonseed oil, raw soybean oil, and sunflower methyl ester, cottonseed methyl ester, soybean methyl ester, obtained from the raw oils respectively and refined opium poppy oil, rapeseed and corn oil) were used. In order to determine emission and performance characteristics, the engine was tested with full load-varied speed and constant spee ...Daha fazlası

A study on the distribution, morphology and karyology of Tatera indica (Hardwicke, 1807) (Mammalia: Rodentia) in Turkey [Türkiye'dike Tatera indica (Hardwicke, 1807) (Mammalia: Rodentia)'nin Yayilişi, Morfolojisi ve Karyotipi Üzerine Bir Çalişma]

Yigit N. | Çolak E. | Verimli R. | Özkurt S. | Sözen M.

The Habitat, external and cranial morphologies, and karyotype of Turkish specimens of Tatera Indica are described for the first time with this study. It was determined that Tatera Indica was located in uncultivated arid and semi-arid habitat in southeastern Turkey. Its external and cranial characteristics are consistent with those detailed in published papers. The karyotype of Tatera indica is composed of 2n=68, NF=84 and NFa=80.

Abrasive wear behaviour of Al-SiC composites produced by pressure infiltration technique

Candan E. | Ahlatci H. | Çïmenoglu H.

In this study, abrasive wear behaviours of compacts produced by pressure infiltration technique were investigated. Pure aluminum and SiC particles having 13 and 37 µm mean diameters were used in the infiltration process. The volume fraction of the SiC particles was 60% in the compacts. Abrasive wear tests were carried out under the normal load of 28 N, by rubbing the compacts to abrasive Al2O3 grains with diameters in the range of 85-250 µm. Wear tests revealed that, the effect of the size of SiC particles on the wear resistance of compacts, depends on the size of the Al2O3 abrasive grains bei ...Daha fazlası

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