Single top quark production as a probe of anomalous tqγtq\gamma and tqZtqZ couplings at the FCC-ee

In this paper, a detailed study to probe the top quark Flavour-Changing Neutral Currents (FCNC) $tq\gamma$ and $tqZ$ at the future $e^{-}e^{+}$ collider FCC-ee in three different center-of-mass energies of 240, 350 and 500 GeV is presented. A set of useful variables are proposed and used in a multivariate technique to separate signal $e^- e^+ \rightarrow Z/\gamma \rightarrow t \bar{q} ~ ( \bar{t} q )$ from standard model background processes. The study includes a fast detector simulation based on the {\sc delphes} package to consider the detector effects. The $3 \sigma$ discovery regions and the upper limits on the FCNC branching ratios at 95\% confidence level (CL) in terms of the integrated luminosity are presented. It is shown that with 300 fb$^{-1}$ of integrated luminosity of data, FCC-ee would be able to exclude the effective coupling strengths above ${\cal O} (10^{-4}-10^{-5})$ which is corresponding to branching fraction of ${\cal O}(0.01-0.001)$\%. We show that moving to a high-luminosity regime leads to a significant improvement on the upper bounds on the top quark FCNC couplings to a photon or a $Z$ boson.Comment: 21 Pages, 6 Figures, 8 Table

Comparison of the Effectiveness of Cognitive Behavioral Therapy and Acceptance and Commitment Therapy on Reducing Mood Symptoms in Patients With Substance Abuse

Background: The purpose of this study was to compare the effectiveness of cognitive-behavioral therapy (CBT) and acceptance and commitment therapy (ACT) on reducing mood symptoms in patients with substance abuse.Methods: The current research was a semi-experimental study with pre-test and post-test with a control group. The participants consisted of all people with substance abuse referred to drug abuse treatment centers in district 4 and 8 of Tehran city in 2016-2017. In this way, 45 subjects selected by purposeful sampling method and randomly divided into 2 groups of experimental and one control group (15 persons for each group). Then, the Mood Disorder Questionnaire and Depression Inventory took from the subjects of each group. CBT and ACT performed in 8 sessions of 90 minutes in 2 experimental groups and control group were also without any training program. After completing the training, the post-test performed for all three groups. Data analysis was done by using the covariance analysis (MANCOVA) and using SPSS-21 software.Results: The findings showed that CBT and ACT were effective in reducing mood syndrome in patients with substance abuse (P<00.001). Moreover, there were no significant differences between the effectiveness of the CBT and ACT on the reduction of mood syndrome in patients with substance abuse.Conclusion: Considering the effect of CBT and ACT on the reduction of mood syndrome among patients with substance abuse, it is worth considering the role of these 2 treatments as one of the educational and therapeutic strategies for substance abuse

Top Quark Asymmetries and Unparticle Physics

Among different measured observables of top-antitop quark pairs at hadron colliders, the forward-backward asymmetry ($A_{\text{FB}}$) measured by the CDF and D0 collaborations has inconsistency with the Standard Model prediction. The measured forward-backward asymmetry grows with $t\bar{t}$ invariant mass. Several new physics models have been proposed to explain this deviation. We consider the consistency of the parameter space of vector unparticle (in Flavor-Conserving scenario) with the existing $t\bar{t}$ production measurements. In particular, we look at the total cross sections at the LHC and Tevatron, differential cross section with $t\bar{t}$ invariant mass, and the LHC charge asymmetry to identify the regions in parameter space that can give the desired top $A_{\text{FB}}$ observed by the Tevatron. We show that in spite of the intrinsic tension between the LHC charge asymmetry and $A_{\text{FB}}$, there exists a region in the unparticle parameters space where the top $A_{\text{FB}}$ and the LHC charge asymmetry are satisfied simultaneously. Finally, we show that the consistent region with $t\bar{t}$ observables is consistent with the constraints coming from the dijet resonance searches.Comment: 12 pages,5 figure

The Effect of Cognitive Behavioral Therapy on Postpartum Depression: A Review and Meta-Analysis Study

Background: Mother's health and breastfeeding efficacy are affected by depression during pregnancy. The aim of study was to determine the effects of cognitive-behavioral therapy on the treatment of postpartum depression in mothers after childbirth. Methods: In this systematic review, the Web of Sciences, PubMed, Scopus, Google Scholar, Iran Medex, Magiran & SID databases were used to access relevant documentation. To search for articles in the resource, the keywords depression AND cognitive-behavior therapy AND "perinatal OR antepartum OR childbirth" is used with all possible combinations of these words. Without time limitation, all related articles have been retrieved. Search was restricted to articles published in Persian and English. The quality of papers was examined using the Cochran risk of bias tool. Meta-analysis was performed using Rev 5.3. Results: We retrieved 621 titles, of which 12 were qualified after the qualitative synthesis. Meta-analysis revealed a statistically significant beneficial effect of CBT sessions as compared to routine postpartum care on long term management of postpartum depression. (Mean Difference: -4.02 [-5.58, -2.47]). A pooled effect size with BID instrument was observed -6.32 [-8.54, -4.11] at 3 months, with EPDS were observed -2.83 [-6.56, 0.90] and -2.81 [-4.21, -1.41] at 3 and 6 months respectively. Conclusions: CBT was shown to be effective however the evidence available is limited. It can be used as an effective psychological treatment without the side effect of drugs in PPD. Keywords: Postpartum depression, Cognitive behavioral therapy, Psychological disorder, Review, Meta-analysis

ACO-tagger: A Novel Method for Part-of-Speech Tagging using Ant Colony Optimization

Swarm Intelligence algorithms have gained significant attention in recent years as a means of solving complex and non-deterministic problems. These algorithms are inspired by the collective behavior of natural creatures, and they simulate this behavior to develop intelligent agents for computational tasks. One such algorithm is Ant Colony Optimization (ACO), which is inspired by the foraging behavior of ants and their pheromone laying mechanism. ACO is used for solving difficult problems that are discrete and combinatorial in nature. Part-of-Speech (POS) tagging is a fundamental task in natural language processing that aims to assign a part-of-speech role to each word in a sentence. In this research paper, proposed a high-performance POS-tagging method based on ACO called ACO-tagger. This method achieved a high accuracy rate of 96.867%, outperforming several state-of-the-art methods. The proposed method is fast and efficient, making it a viable option for practical applications

From Tevatron's top and lepton-based asymmetries to the LHC

We define a lepton-based asymmetry in semi-leptonic ttbar production at the LHC. We show that the ratio of this lepton-based asymmetry and the ttbar charge asymmetry, measured as a function of the lepton transverse momentum or the ttbar invariant mass is a robust observable in the Standard Model. It is stable against higher order corrections and mis-modeling effects. We show that this ratio can also be a powerful discriminant among different new physics models and between them and the Standard Model. Finally, we show that a related ratio defined at the Tevatron is also robust as a function of the ttbar invariant mass.Comment: 20 page

Management of Pulp Canal Obliteration in Mandibular Incisors with Guided Endodontic Treatment: A Case Report

Successful management of mandibular incisors with pulp canal obliteration using guided endodontics is described, for the first time in Iran. A 58-year-old man was referred for root canal treatment of teeth #24, #25 and #26. Upon radiographic examination, partial obliteration of the root canal system was detected. Cone-beam computed tomography (CBCT) was requested to enhance the diagnosis and detection of root canals. Next, a 3-dimensional (3D) guide was designed and printed to aid in localization and access to the root canal system with minimal destruction of the tooth structure. With the use of a targeted 3D guide, a conservative access cavity was prepared to avoid unnecessary removal of tooth structure. The teeth were successfully treated endodontically. Obtained results revealed that the technique can be effective and predictable for the management of calcified canals