In-medium properties of b and d mesons

Conference: International Workshop on Quantum Chromodynamics - Theory and Experiment -- Location: Bari, ITALY -- Date: JUN 16-19, 2014.The shifts in the masses and decay constants of B and D mesons in nuclear medium are calculated in the frame work of QCD sum rules. The results obtained are compared with the existing theoretical predictions.Ist Nazl Fisica Nucleare; Natl Ist Nazl Fisica Nucleare Theory Comm; Salento Univ, Dipartimento Matematica Fisica E Giorgi; Lecce Ist Nazl Fisica Nucleare Theory Gr

Double Inverted Mesiodentes: Report of an Unusual Case

This report presents an extremely rare occurrence of two inverted mesiodentes in a child patient. Extraction of both mesiodentes was indicated, owing to the axial rotation of the permanent central incisors caused by these impacted supernumerary teeth. Radiographic evidence of complete healing was observed 24 months following surgical removal of the inverted mesiodentes

Recurrence rate of odontogenic keratocyst treated by enucleation and peripheral ostectomy : retrospective case series with up to 12 years of follow-up

Odontogenic keratocysts have been reported with high recurrence rates in the literature so various treatment modalities from simple enucleation to resection have been performed to achieve the cure. The purpose of this retrospective study was to investigate the recurrence rate of odontogenic keratocysts (OKCs) treated by enucleation and peripheral ostectomy. An electronic search of the database of the Hacettepe University, Faculty of Medicine, Department of Pathology, was undertaken to identify patients histologically diagnosed with OKCs treated at Department of Oral and Maxillofacial Surgery between 2001 and 2015. In total, 81 patients were studied. The mean age at the time of diagnosis was 42 years, and the male:female ratio was 1:0.7. OKCs were located primarily in the posterior mandibular region (41%). Twenty-seven patients were re-examined to determine the recurrence rate. The mean follow-up period was 5 years (range, 1?12 years). The recurrence rate was 14.8%. The relationship between location of the lesion and recurrence was not statistically significant (p = 0.559). There was also no statistically significant relation between the recurrence rate and treatment option of teeth involved in the lesion (p = 0.579). The authors conclude that treatment of OKCs by enucleation with peripheral ostectomy is associated with minimal morbidity and is preferred over other aggressive treatment modalities. Meticulous radiographic examination and careful surgical resection may decrease the recurrence rate of OKCs

The analysis of antenatal risk factors during the precarious preterm birth

Yüksek Lisans TeziBu araştırma; riskli erken doğumda antenatal risk faktörlerini analiz etmek, erken doğum riski taşıyan gebelerin yönetimine ışık tutmak amacıyla retrospektif tipte tanımlayıcı olarak planlanmıştır. Araştırmada Ocak 2002- Aralık 2010 tarihleri arasında Trakya Üniversitesi Eğitim, Araştırma ve Uygulama Merkezi Doğum Servisinde 26-32 gebelik haftaları arasında doğum yapan 419 kadının dosyası incelendi. Araştırma verileri; kadınların sosyodemografik özellikleri, obstetrik özellikleri, gebeliğe bağlı problemler ve medikal hastalık varlığına bağlı özelliklerini içeren form ile toplanmıştır. Verilerin istatistiki değerlendirilmesinde; yüzdelik ve ki-kare testi yapılmıştır. Araştırma sonuçlarına göre kadınların; %9.1'i adölesan , %2.4'ü okur-yazar değil, %7.4'ü bekar, %48.4'ü hafif şişman, %29.4'ü doğum öncesi bakım almamış, %47.7'sinin ilk gebeliği, %10.7'si daha önce erken doğum yapmış, %6.7'si yardımcı üreme tekniği ile gebe kalmış, %11.7'sinde plasental sorun varlığı, %16.7'sinde enfeksiyon, %8.1'inde servikal yetmezlik, %14.3'ünde preeklampsi, %55.5'inde hipertansiyon, %66.8'inde anemi varlığı saptanmıştır. Riskli erken doğum yapan kadınların doğum öncesi bakım almayanlarda erken doğum öyküsü, anemi, enfeksiyon ve erken membran rüptürü görülmesi arasındaki ilişki anlamlı bulunmuştur. Gebelik sayısı ile erken doğum öyküsü ve maternal hastalık varlığı arasındaki ilişki anlamlı bulunmuştur. Bu sonuçlar doğrultusunda riskli erken doğum Trakya bölgesinde medikal ve sosyodemografik faktörler açısından geniş yelpazaye sahip önemli bir sorundur. Anahtar kelimeler: Trakya bölgesi, riskli erken doğum, antenatal risk faktörleri.AbstractThis research was planned as a retrospective diagnosis in order to analyse the antenetal risk factors in the precarious preterm birth and shed light on the management of the pregnants with premature risk. In this research,from January,2002, to December 2010, the files of 419 women who gave birth between the 26-32 pregnancy weeks in the Labour Service of Training, Research and Implementation Center at Trakya Univeristy were examined. Research data was collected through a form including socio-demographic and obstetrical features and the features which depend on the existence of medical ailments of women and the pregnancy-related problems. Chi-squared and percentile rank test were conducted in the statistical assessment of data. According to the research results, it was diagnosed that %9.1 women were adolescents, 2.4% illiterate, 7.4% single, 48.4%overweight, 29.4% hadn't received prenatal care, 47.7% had their first pregnancies, 10.7% had previously had premature births, 6.7% conceived by assisted reproductive techniques, 11.7% had placental problems, 16,7% infection, 8.1% cervical insufficiency, 14.3% preeclampsia, 55.5% hypertension and 66.8% had anemia. It was meaningful to determine that the women who laboured prematurely hadn't had antenatal care had anemia, infection and premature membrane rupture. The relationship between the number of pregnancy, the history of premature birth and the presence of maternal disease was found significant. Based on these results, risky premature birth is a major problem with the broad spectrum throughout Trakya Region in terms of medical and socio-demographical factors. Key words: Trakya Region, risky premature birth, antenatal risk factors

Stokastik ortalama alan yaklaşımlarında nükleer spinodal kararsızlıklar.

Nuclear spinodal instabilities are investigated in non-relativistic and relativistic stochastic mean-field approaches for charge asymmetric and charge symmetric nuclear matter. Quantum statistical effect on the growth of instabilities are calculated in non-relativistic approach. Due to quantal effects, in both symmetric and asymmetric matter, dominant unstable modes shift towards longer wavelengths and modes with wave numbers larger than the Fermi momentum are strongly suppressed. As a result of quantum statistical effects, in particular at lower temperatures, amplitude of density fluctuations grows larger than those calculated in semi-classical approximation. Relativistic calculations in the semi-classical limit are compared with the results of non-relativistic calculations based on Skyrme-type effective interactions under similar conditions. A qualitative difference appears in the unstable response of the system: the system exhibits most unstable behavior at higher baryon densities around $\rho_{B}=0.4 \rho_{0}$ in the relativistic approach while most unstable behavior occurs at lower baryon densities around $\rho_{B}=0.2 \rho_{0}$ in the non-relativistic calculations.Ph.D. - Doctoral Progra

B to D(D*)ev(e) transitions at finite temperature in QCD

In this article, we work out the properties of the B, D, and D* mesons as well as the B -> D(D*)ev(e) decay properties at finite temperature QCD. The behavior of the masses, decay constants and widths of the B, D, and D* mesons in terms of the temperature is studied. The temperature dependency of the form factors responsible for such decays are also obtained. These temperature-dependent form factors are used to investigate the variation of the branching ratios with respect to the temperature. It is shown that the branching ratios do not change up to T/T-c = 0.3, however they start to diminish with increasing the temperature after this region and vanish at the critical or deconfinement temperature

Properties of Sigma(Q)*, Xi(Q)* and Omega(Q)* heavy baryons in cold nuclear matter

Azizi, Kazem (Dogus Author)The in-medium properties of the heavy spin-3/2 Sigma(Q)*, Xi(Q)*, and Omega(Q)*, baryons with Q being b or c quark are investigated. The shifts in some spectroscopic parameters of these particles due to the saturated cold nuclear matter are calculated. The variations of those parameters with respect to the changes in the density of the cold nuclear medium are studied, as well. It is observed that the parameters of Sigma(Q)* baryons are considerably affected by the nuclear matter compared to the Xi(Q)* and Omega(Q)* particles that roughly do not see the medium. The results obtained may be used in analyses of the data tole provided by the in -medium experiments like PANDA

Impact of finite density on spectroscopic parameters of decuplet baryons

Azizi, Kazem (Dogus Author)The decuplet baryons, Δ, Σ∗, Ξ∗, and Ω-, are studied in nuclear matter by using the in-medium QCD sum rules. By fixing the three-momentum of the particles under consideration at the rest frame of the medium, the negative energy contributions are removed. It is obtained that the parameters of the Δ baryon are more affected by the medium against the Ω- state, containing three strange quarks, whose mass and residue are not considerably affected by the medium. We also find the vector and scalar self-energies of these baryons in nuclear matter. By the recent progresses at the PANDA experiment at the FAIR and NICA facility, it may be possible to study the in-medium properties of such states, even the multistrange Ξ∗ and Ω- systems, in the near future

Double Inverted Mesiodentes: Report Of An Unusual Case

This report presents an extremely rare occurrence of two inverted mesiodentes in a child patient. Extraction of both mesiodentes was indicated, owing to the axial rotation of the permanent central incisors caused by these impacted supernumerary teeth. Radiographic evidence of complete healing was observed 24 months following surgical removal of the inverted mesiodentes.PubMe