35 research outputs found

    A Kitaev-type spin liquid on a quasicrystal

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    We develop an exactly solvable model with Kitaev-type interactions and study its phase diagram on the dual lattice of the quasicrystalline Ammann-Beenker lattice. Our construction is based on the Γ\Gamma-matrix generalization of the Kitaev model and utilizes the cut-and-project correspondence between the four-dimensional simple cubic lattice and the Ammann-Beenker lattice to designate four types of bonds. We obtain a rich phase diagram with gapped (chiral and abelian) and gapless spin liquid phases via Monte Carlo simulations and variational analysis. We show that the ground state can be further tuned by the inclusion of an onsite term that selects 21 different vison configurations while maintaining the integrability of the model. Our results highlight the rich physics at the intersection of quasicrystals and quantum magnetism

    Quantitative changes in palatal donor site thickness after free gingival graft harvesting: a pilot study

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    Aim: The aim of this study was to investigate how donor sites thickness quantitatively change over time and at different points of donor site in spontaneous palatal wound healing after free gingival graft (FGG) harvesting. Materials and Methods: Forty individuals were enrolled and divided into the following two groups based on the residual tissue thickness (RTT) after harvesting: Group 1, <2 mm; and Group 2, ?2 mm. FGGs were standardized according to their dimensions and thickness and then harvested. Tissue filling was measured at three points of the defect area (mesial, central and distal) at various time points (baseline, after harvesting, and at 1, 3 and 6 months). Results: The thickness of newly formed tissue from the baseline to 1 month after harvesting was greater in Group 2 than in Group 1, whereas the thickness from 1 to 3 months and from 3 to 6 months after harvesting was greater in Group 1 than in Group 2 (p < 0.005). RTT was positively correlated with tissue filling in all the groups at all time points (p < 0.05). Conclusions: The palatal mucosal thickness after FGG harvesting might affect the filling of the defect. Within the study period, the periphery of the palatal wounds filled earlier and to a greater extent compared with the centre of the wounds. © 2016 John Wiley & Sons A/S. Published by John Wiley & Sons Lt

    Judicial psychiatric evaluation in adolescents: A case report [Ergenlerde adli psikiyatrik değerlendirme: Bir olgu sunumu]

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    It is well known that children exposed to sexual abuse tend to severe mental disorders, are not enough to treat those children. Prisons for children are said to be shut for some reasons, or there are some news that in those prisons some children are exposed to maltreatment or sexual abuse. To provide treatment programs, including families into treatments and acculturation of youth to the society are the focus points to be improved; social support and employment programs will enable improvements in those population. For the sake of population long term treatments and follow up studies are necessary applications. In our case we have discussed how the mental health of these children exposed to sexual abuse can be improved and to provide rehabilitation process. Furthermore the treatment centers used for the children exposed to sexual abuse or pushed to crimes. © 2017, Cukurova University, Faculty of Medicine. All rights reserved

    Serration effect on gain for microstrip E-Shape patch antenna

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    Due to copyright restrictions, the access to the full text of this article is only available via subscription.In this work we focus on the effect of serration on E-Shape patch antennas. We simulated 2 different E-shape antennas with the same length. The first one has serrated edge and the second one doesn't have. Then we compared the results. Sonnet Suites is used as a simulation program. At 4.22 GHz -15.2 dB return loss and 6.237 dB gain were observed

    Salivary infectious agents and periodontal disease status

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    WOS: 000287702700012PubMed ID: 21261620Background and Objectives: The potential of salivary microorganisms to diagnose periodontal disease and to guide periodontal treatment is a research topic of current interest. This study aimed to determine whether the salivary counts of periodontopathic microbes correlated with the periodontal pocket counts of the same infectious agents, and whether the salivary counts of the test infectious agents could distinguish among individuals with periodontal health and various types of periodontal disease. Material and Methods: The study included 150 systemically healthy adults, of whom 37 were periodontally healthy, 31 had gingivitis, 46 had chronic periodontitis and 36 had aggressive periodontitis. Each study subject contributed microbial samples from the two deepest periodontal pockets of the dentition and from whole saliva. Aggregatibacter actinomycetemcomitans, Campylobacter rectus, Fusobacterium nucleatum, Porphyromonas gingivalis, Prevotella intermedia, Tannerella forsythia and Epstein-Barr virus were identified using the TaqMan real-time PCR methodology. Statistical analysis was performed using the Mann-Whitney U-test and the receiver operating characteristic statistics. Results: C. rectus, F. nucleatum, P. gingivalis, P. intermedia and T. forsythia occurred with significantly higher copy-counts in salivary samples from patients with gingivitis, chronic periodontitis and aggressive periodontitis than from periodontally healthy individuals. A. actinomycetemcomitans only showed higher salivary copy-counts in subjects with aggressive periodontitis compared with subjects with healthy periodontium, and the salivary copy-counts of Epstein-Barr virus did not reveal any significant difference among the four subject groups studied. The diagnostic sensitivity for periodontitis was 89.19 for P. gingivalis and for T. forsythia and 86.49 for P. intermedia, with specificities ranging from 83.78 to 94.59. The optimal copy-counts per mL saliva for identifying periodontitis were 40,000 for P. gingivalis, 700,000 for T. forsythia and 910,000 for P. intermedia. Conclusion: Salivary copy-counts of P. gingivalis, T. forsythia and P. intermedia appear to have the potential to identify the presence of periodontitis, whereas the salivary level of the other test infectious agents may possess little or no diagnostic utility. Longitudinal studies are warranted to determine the ability of salivary copy-counts of major periodontopathic bacteria to predict future periodontal breakdown

    PENETRATION OF CIPROFLOXACIN INTO PLEURAL FLUID

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    The penetration of oral 1000 mg/day ciprofloxacin into pleural fluid is investigated in 15 patients with exudative pleural effusion. After 4 days of ciprofloxacin therapy ciprofloxacin concentrations were measured in plasma and pleural exudate simultaneously by high-performance liquid chromatography (HPLC). Mean serum ciprofloxacin level was 1.58 +/- 0.91 mg/L and mean pleural exudate concentration was 1.00 +/- 0.59 mg/L. The concentrations achieved were all above the MIC90 of the majority of Gram-positive and Gram-negative pathogens. It is concluded that ciprofloxacin penetrates well into the pleural fluid
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