39 research outputs found

    The connected graphs obtained from finite projective planes

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    In this paper, we give a method of obtaining graphs from finite projective planes, by using an approach based method of taking each line of such a plane as a path graph. All the graphs obtained with the help of this method are connected and some properties of these graphs are determined

    Some Remarks on a Class of Finite Projective Klingenberg Planes

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    In this article, we deal with a class of projective Klingenberg planes constructed over a plural algebra of order m. Thanks to this, the incidence matrices for some special cases of the class are obtained. Next, the number of collineations of the certain classes are found. Besides, an example of a collineation for these classes are given. Finally, we achieve to carry the obtained results to more general case

    A Note on Projective Klingenberg Planes over Rings of Plural Numbers

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    This paper deals with a certain class of projective Klingenberg planes over the local ring F[eta]/lteta^{m}gt with F an arbitrary field, known as the plural algebra of order m. In particular addition and multiplication of points on a line is defined geometrically and interpreted algebraically, by using the coordinate ring

    Elevated Red Blood Cell Distribution Width May Be a Novel Independent Predictor of Poor Functional Outcome in Patients Treated with Mechanical Thrombectomy

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    Purpose Red blood cell distribution width (RDW) evaluates the variation (size heterogeneity) in red blood cells. Elevated RDW has been identified as a predictor of poor functional outcomes for acute ischemic stroke. The association between elevated RDW level and poor functional outcome in stroke patients undergoing mechanical thrombectomy has not been reported before. This study aims to investigate this relationship. Materials and Methods This was a multicenter retrospective study involving the prospectively and consecutively collected data of 205 adult stroke patients who underwent mechanical thrombectomy for anterior circulation large vessel occlusion (middle cerebral artery M1, anterior cerebral artery A1, tandem ICA-MCA, carotid T) between July 2017 and December 2019. RDW cut off levels were accepted as >16%. The effect of elevated RDW on poor functional outcome (modified Rankin scale 3–6) was investigated using bivariate and multivariate regression analysis. Results Elevated RDW was significantly associated with poor functional outcome in bivariate and multivariate analysis (odds ratio [OR] for RDW >16%, 2.078; 95% confidence interval [95% CI], 1.083–3.966; P=0.027 and OR for RDW >16%, 2.873; 95% CI, 1.342–6.151; P=0.007; respectively). Conclusion These findings suggest that elevated RDW may be an independent predictor of poor functional outcomes in ischemic stroke patients undergoing mechanical thrombectomy

    Serum nesfatin-1 levels: a potential new biomarker in patients with subarachnoid hemorrhage

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    Annual Meeting of the Congress-of-Neurological-Surgeons (CNS) -- SEP 26-30, 2015 -- New Orleans, LAWOS: 000389642100007PubMed: 26872406Background: Acute subarachnoid hemorrhage (SAH) is a neurological emergency with significant potential for long-term morbidity and mortality. Nesfatin-1 is a polypeptide which is found in various regions of the brain that play role in the feeding and metabolic regulation. Objective: So this study aimed to investigate if nesfatin-1 levels in patients with SAH, could be used as a marker for the severity and prognosis. Method: Forty-eight consecutive patients (except those excluded) admitted to the emergency service of our hospital and hospitalized at our clinic with the diagnosis of aneurysmal SAH between 2011 and 2013 were included in the study and followed up for six months for outcome. the control group consisted of 48 healthy individuals of similar age and gender. Results: During the 6-month follow-up, 7 of 48 patients died and 16 (33.3%) patients had poor Glasgow Outcome Score (GOS) scores. in the study group, themean nesfatin-1 level was significantly higher than the control group (7.36 +/- 2.5 pg/ml and 4.29 +/- 2.02 pg/ml, respectively; p < 0.01). the mean nesfatin-1 level was 11.58 +/- 0.87 pg/ml in the non-survival group and 6.64 +/- 1.89 pg/ml in the survival group. Furthermore, it was 10.22 +/- 1.42 pg/ml in patients with poor outcome in terms of GOS and 5.93 +/- 1.46 pg/ml in those with good outcome. the nesfatin-1 levels significantly increased with worsening of GOS, the World Federation of Neurological Surgeons grading system, and Fisher scores and increasing plasma C-reactive protein levels (p < 0.01 for all). Conclusion: the present study is the first that shows the mortality/poor outcome of the SAH with assessing serum nesfatin-1 levels. So levels of nesfatin-1 might be useful in SAH management.Congress Neurol Sur

    Fluid Rim Sign: A New Ultrasonographic Sign Of Soft Tissue Aspergillosis

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    The air crescent sign is a well-known important diagnostic finding in invasive pulmonary aspergillosis. Herein we report a distinctive but rare ultrasonographic appearance in a patient with myositis secondary to Aspergillus flavus infection, which can be considered as the soft tissue counterpart of the air crescent sign.WoSScopu
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