|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Detection of class 1 integron in Acinetobacter baumannii isolates collected from nine hospitals in Turkey显示文摘Objective:To investigate the antibiotic resistance genes inserted into class I and class 2integrons in Acinetobacler baumannii[A.baumannii)isolates obtained from nine different cities in Turkey.Methods:A collection of 281 A.baumannii clinical isolates were collected from nine diferenl state hospitals in Turkey and were confirmed as A.baumannU by conventional biochemical,API testing and bla_(-OXA-51)specific PCR.The isolates were examined by PCR for existence of class I and2 integron gene cassettes.Results:They were characterized by antimicrobial susceptibility testing and the highest resistance rates were determined for piperacillin(90.03%),ciprofloxacin(87.54%),cefepime and trimethoprim/sulfamethoxazole(81.13%).The lowest resistance rates was for cefotaxime(3.55%).class 1 integrons were detected in 6.4%(18/281)of A.baumannii strains and no class 2 integron was detected.The gene casselles of class 1 inlegrons AacCI-AAC(3)l-aadAI,AacCI-aadA1,AAC(3)-I,AAC(3)-I-AAC(3)-I-aadA1,TEM-1.AAC(3)-I-aadA1-AAC(3)-I-AAC(3)-I,AAC(3)-I-AAC(3)-I-AAC(3)-I-aadA1,AAC(3)-I-aadA1,AAC(3)-I-AAC(3)-I,AAC(3)-I-aadA1-AAC(3)-I-aadA1,AAC(3)-I-AAC(3)-I-aadA1-AAC(3)-I-aadA1 were detected in eighteen strains.The aac genes family were most frequently found integrated into the class 1 inlegrons and it was followed by aadA genes and TEM-1 genes.Conclusions:This is an extensive study on the distribulion of class 1 integron among A.baumannii in Turkey.In addition to these,two new alleles were observed.Their percentage rates of similarity to other cassettes are 95%aadA1(TK A18)and 89%,aadA 1(ANKA3). | Aysegül Copur Cicek Azer Ozad Düzgün Aysegül Saral Tuba Kayman Zeynep Cizmeci Pervin Ozlem Balci Tuba Dal Mehmet Firat Ismail Tosun Yasemin Ay Alitntop Ahmet Caliskan Yelda Yazici Cemal Sandalli | 2013 | Asian Pacific Journal of Tropical Biomedicine2013，3，9： | 3 |
| 2 | Alternating-current losses in two-layer superconducting cables consisting of second-generation superconductors coated by U-shaped ferromagnetic materials显示文摘Alternating-current losses in a two-layer superconducting cable, each layer being composed of 15 closely-spaced rectangular wires made up of second-generation superconductors when the ends of wires are coated by either a non-magnetic or strong ferromagnetic material having a U profile is numerically investigated. Computations are carried out through the finite-element method. The alternating-current losses do not increase significantly if the relative permeability of the coating is increased three orders of magnitude, provided that the current amplitude is less than half of the critical current in a superconducting wire. However, the losses are much higher for ferromagnetic coating if the amplitude of the applied current oscillating at 50 Hz is close to the critical current. The ferromagnetic coating is seen to accumulate the magnetic field lines normally on its surfaces, while the field lines are parallel to the long axes of the wires, leading to more significant flux penetration in the coated regions. This facilitates a uniform low-loss current flow in the uncoated regions of the wires. In contrast, coating with a non-magnetic material gives rise to a considerably smaller current flow in the uncoated regions, whereas the low-loss flow is maintained in the coated regions. Moreover, the current flows in opposite directions in the coated and uncoated regions, where the direction in each region is converse for the two materials. | Ahmet Cicek Fedai Inanir Fedor Gmry | 2013 | Chinese Physics B2013，22，12： | 1 |
| 3 | Aspirin: from a Historical Perspective显示文摘 | Murat Ugurlucan Ilker M. Caglar Fatma N. Turhan Caglar Sedat Ziyade Oguzhan Karatepe Yahya Yildiz Ertugrul Zencirci Funda Gungor Ugurlucan Ahmet H. Arslan Semra Korkmaz Ugur Filizcan Sertac Cicek | 2012 | Recent Patents on Cardiovascular Drug Discovery2012，，1： | 1 |
| 4 | Elevated plasma endothelin-1 levels in coronary sinus during rapid right atrial pacing in patients with slow coronary flow显示文摘 | Hasan Pekdemir Gurbuz Polat V.G?khan Cin Ahmet ?amsari Dilek Cicek M.Necdet Akkus Oben Doven M.Tuna Katircibas? Necati Muslu | 2003 | International Journal of Cardiology2003，，1： | 1 |
| 5 | Acoustic beam splitting in a sonic crystal around a directional band gap显示文摘Beam splitting upon refraction in a triangular sonic crystal composed of aluminum cylinders in air is experimentally and numerically demonstrated to occur due to finite source size,which facilitates circumvention of a directional band gap.Experiments reveal that two distinct beams emerge at crystal output,in agreement with the numerical results obtained through the finite-element method.Beam splitting occurs at sufficiently-small source sizes comparable to lattice periodicity determined by the spatial gap width in reciprocal space.Split beams propagate in equal amplitude,whereas beam splitting is destructed for oblique incidence above a critical incidence angle. | Ahmet Cicek Olgun Adem Kaya Bulent Ulug | 2013 | Chinese Physics B2013，22，11： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员