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- 저자 : Goksen (검색결과 6 건)
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Goksen Cecen,Hakan Salci,Deniz Seyrek Intas,Nureddin Celimli,Gulsum Ulke Caliskan 대한수의학회 2015 Journal of Veterinary Science Vol.16 No.1
This study aimed to compare thickness of the capsule, corium, and soft tissues measured ultrasonographically and macroscopically in selectedregions of bovine claws. A hundred and twenty claws (n = 120) of 15 healthy Holstein bovines were obtained. After cleaning the claws,ultrasonographic measurement of the capsule, corium, and soft tissues was performed while submerging the claws in a water bath. Macroscopicmeasurements were taken after cutting of the claws axially. These values were compared statistically. According to the macroscopicmeasurements, the mean thickness ± standard deviation (SD) of the capsule for dorsal wall and sole was 6.2 ± 0.1 and 9.5 ± 0.4 mm, respectively. The thickness of the corium and soft tissues for dorsal wall and sole was 4.5 ± 0.1 and 5.3 ± 0.1 mm, respectively. Ultrasonographically, themean thickness ± SD of the capsule for dorsal wall and sole was 4.7 ± 0.1 and 7.8 ± 0.3 mm, respectively. The thickness of the corium andsoft tissues for dorsal wall and sole was 4.3 ± 0.1 and 5.9 ± 0.2 mm, respectively. Findings demonstrated that ultrasonography can be reliablyto measure of the thickness of the hoof capsule, corium, and soft tissue in bovine claw.
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Donor-Acceptor Pair Recombination in Tl2InGaS4 Layered Crystals
K. Goksen,A. Aydinli,H. Ozkan,N. M. Gasanly 한국물리학회 2005 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.47 No.1
Photoluminescence (PL) spectra of Tl2InGaS4 layered single crystals were studied in the temperaturerange 15 – 150 K and wide laser excitation intensity range 0.01 – 110.34 Wcm−2. We observed a total of three PL bands, one centered at 542 nm (2.286 eV, A-band), one at 607 nm (2.041 eV,B-band), and one at 707 nm (1.754 eV, C-band), at various excitation intensities. The A- and the B-bands were determined to be due to radiative transitions from moderately deep donor levels located at 0.189 and 0.443 eV below the bottom of the conduction band to the shallow acceptor levels at 0.025 and 0.016 eV above the top of the valence band, respectively. The blue shift of the C-band peak energy and the quenching of the PL with increasing temperature are explained within the configuration coordinate model. The observation in the PL spectra of different emission bands in the sequence of B-, C- and A-bands at low, moderate, and high excitation laser intensities,respectively, are attributed to the shift of the quasi-Fermi level with increasing excitation intensity.
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Trap Distribution in TlInS2 Layered Crystals from Thermally Stimulated Current Measurements
M. Isik,K. Goksen,N.M. Gasantly,H. Ozkan 한국물리학회 2008 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.52 No.2
We have carried out thermally stimulated current (TSC) measurements with the current flowing along the layer on as-grown TlInS₂ layered single crystals in the low temperature range 10 -- 110 K with different heating rates of 0.1 -- 1.5 K/s. Experimental evidence was found for the presence of two shallow electron trapping centers with activation energies of 12 and 14 meV. Their capture cross sections have been determined as 2.2 × 10-²³ and 7.1 × 10-25 ㎠, respectively. It was concluded that retrapping in these centers is negligible, which was confirmed by the good agreement between the experimental results and the theoretical predictions of the model that assumed slow retrapping. An exponential distribution of electron traps was revealed from the analysis of the TSC data obtained at different light excitation temperatures. This experimental technique provided a value of 27 meV/decade for the trap distribution. The parameters of the monoclinic unit cell were determined by studying the X-ray powder diffraction. We have carried out thermally stimulated current (TSC) measurements with the current flowing along the layer on as-grown TlInS₂ layered single crystals in the low temperature range 10 -- 110 K with different heating rates of 0.1 -- 1.5 K/s. Experimental evidence was found for the presence of two shallow electron trapping centers with activation energies of 12 and 14 meV. Their capture cross sections have been determined as 2.2 × 10-²³ and 7.1 × 10-25 ㎠, respectively. It was concluded that retrapping in these centers is negligible, which was confirmed by the good agreement between the experimental results and the theoretical predictions of the model that assumed slow retrapping. An exponential distribution of electron traps was revealed from the analysis of the TSC data obtained at different light excitation temperatures. This experimental technique provided a value of 27 meV/decade for the trap distribution. The parameters of the monoclinic unit cell were determined by studying the X-ray powder diffraction.
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Morphine: Patient Knowledge and Attitudes in the Central Anatolia Part of Turkey
Colak, Dilsen,Oguz, Arzu,Yazilitas, Dogan,Imamoglu, Inanc Goksen,Altinbas, Mustafa Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.12
Background: In Muslim majority countries (MMC) opioid use for pain management is extremely low. The underlying factors contributing to this are not well defined. Aim: The aim of this study was to survey the attitudes of cancer patients towards morphine use for pain management in a MMC and identify the factors that influence patient decisions to accept or refuse morphine as treatment for cancer pain. Settings/participants: Patients were questioned whether they had pain or not, the severity and the medications for pain management. Questions included what type of medication they thought morphine was, whether or not they would be willing to take morphine if recommended for pain management and the basis for their decision if they were against morphine use. Results: Four hundred and eighty-eight patients participated in the study. Some 50% of the patients who refused morphine use and 36.8% of the patients who would prefer another drug, if possible, identified fear of addiction as the basis for their decision. Reservation of morphine for later in their disease was the case for 22.4% of the patients who refused morphine use. Only 13.7 % of the patients refusing morphine and 9.7% of the patients who preferred another drug, if possible, cited religious reasons as the basis for this decision. Conclusions: Identifying the underlying factors contributing to low opioid use for pain management in MMC is important. Once the underlying factors were identified, all efforts should be taken to overcome them as they are barriers to improving patient pain management.
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