50 research outputs found
Duals of noncommutative supersymmetric U(1) gauge theory
Parent actions for component fields are utilized to derive the dual of
supersymmetric U(1) gauge theory in 4 dimensions. Generalization of the
Seiberg-Witten map to the component fields of noncommutative supersymmetric
U(1) gauge theory is analyzed. Through this transformation we proposed parent
actions for noncommutative supersymmetric U(1) gauge theory as generalization
of the ordinary case.Duals of noncommutative supersymmetric U(1) gauge theory
are obtained. Duality symmetry under the interchange of fields with duals
accompanied by the replacement of the noncommutativity parameter
\Theta_{\mu\nu} with \tilde{\Theta}_{\mu \nu} =
\epsilon_{\mu\nu\rho\sigma}\Theta^{\rho\sigma} of the non--supersymmetric case
is broken at the level of actions. We proposed a noncommutative parent action
for the component fields which generates actions possessing this duality
symmetry.Comment: Typos corrected. Version which will appear in JHE
Duality invariance of non-anticommutative N=1/2 supersymmetric U(1) gauge theory
A parent action is introduced to formulate (S-) dual of non-anticommutative
N=1\2 supersymmetric U(1) gauge theory. Partition function for parent action in
phase space is utilized to establish the equivalence of partition functions of
the theories which this parent action produces. Thus, duality invariance of
non-anticommutative N=1\2 supersymmetric U(1) gauge theory follows. The results
which we obtained are valid at tree level or equivalently at the first order in
the nonanticommutativity parameter C_{\mu\nu}.Comment: 12 pages, some comments and references are added. To appear in JHE
Life-Threatening Hematoma in Implant Surgery: A Case Report and Review Of The Literature
Dental implantlar günümüzde dişsiz çenelerde sıklıkla
ve başarılı bir şekilde uygulanan güncel bir tedavi yöntemidir. Maksillo-mandibular alanlarda uygulanan bu
tedavi yöntemi özellikle antikoagülan ilaç kullanımı olan
hastalarda ciddi komplikasyonların meydana gelmesine
sebep olabilir. Bu komplikasyonların en önemlisi majör
cerrahi işlemler sırasında veya sonrasında görülen hayatı tehdit eden kanamadır. Bu tip kanamalar sonrasında ağız tabanı ve çevresinde hematom gelişmesi ile hava
yolunun tam veya kısmi olarak tıkanmasına kadar giden
ciddi problemlere yol açabilir. Sonuçta hastaların hava
yolu güvenliğinin sağlanması için acil olarak entübe
edilmesi ya da trakeotomi yapılması gerekmektedir. Bu
vaka raporunda, 65 yaşında kalp kapak replasmanı nedeniyle varfarin sodyum kullanan erkek hasta protetik
tedavi için kliniğimize başvurdu. Lokal anestezi altında
çoklu diş çekimlerini takiben maksilla ve mandibulaya 9
adet implant yerleştirildi. Cerrahi işlemden bir gün sonra görülen yaygın ve diffüz tipte hematom yaklaşık on
gün sürdü. Hastanın kan hemoglobin değerindeki ani
düşüş nedeniyle iki defa acil kan replasmanı yapıldı.
Kanama kontrolü için lokal hemostatik ajanlar ile
bimanuel kompresyon ve elektrokoter kullanıldı. İyileşme tamamlandıktan dört ay sonra hastanın protezleri
yapılarak tedavisi sorunsuz bitirildi
Modeling of convective drying kinetics of Pistachio kernels in a fixed bed drying system
Drying kinetics of Pistachio kernels (PKs) with initial moisture content of 32.4% (w.b) was investigated as a function of drying conditions in a fixed bed drying system. The drying experiments were carried out at different temperatures of drying air (40, 60 and 80°C) and air velocities (0.05, 0.075 and 0.1 m/s). Several experiments were performed in terms of mass of PKs (15g and 30g) using a constant air velocity of 0.075 m/s. The fit quality of models was evaluated using the determination coefficient (R2), sum square error (SSE) and root mean square error (RMSE). Among the selected models, the Midilli et al model was found to be the best models for describing the drying behavior of PKs. The activation energies were calculated as 29.2 kJ/mol and effective diffusivity values were calculated between 1.38 and 4.94x10-10 m2/s depending on air temperatures
An assessment of the relationship between peri-implant status and dental anxiety and oral health-related quality of life
Background: The purpose of this study is to evaluate the
relationship between peri-implant diseases and dental anxiety and
oral health-related quality of life.
Methods: In a total of 101 subjects (44 females, 57 males, mean
age 56.9 ± 12.1), 325 implants were examined using modified
plaque index, modified sulcus bleeding index, probing depth,
bleeding on probing, clinical attachment level, suppuration, and
keratinized mucosa width. The Oral Health Impact Profile (OHIP-
14) was used to measure the impact of oral health-related quality
of life. For the purpose of assessing the dental anxiety level,
Corah’s Dental Anxiety Scale (DAS) was performed. In addition to
dental implant measurements, the periodontal status of the
participants' natural teeth was assessed by the Community
Periodontal Index (CPI) of the World Health Organization.
Results: All created groups as peri-implantitis, peri-implant
mucositis, and peri-implant healthy were compatible with each
other in terms of gender, age, income level, smoking status, and
oral hygiene practices (p>0.05). A statistically significant
correlation was found indicating that the peri-implant condition
worsened as the education level decreased (p=0.033). There was
no statistically significant difference between study groups in terms
of DAS, OHIP-14, and CPI. There was a significant correlation
between the scores of DAS and OHIP-14 (p<0.001).
Conclusion: No relationship was found between peri-implant
diseases and dental anxiety and quality of life. It was determined
that as the anxiety levels of the participants increased, their quality
of life decreased