Manisa Celal Bayar Üniversitesi Akademik Arşiv Sistemi
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Lophosiphonia obscura and Polysiphonia sukatarii sp. nov. (Rhodomelaceae, Rhodophyta) from mesohaline Lake Bafa, Turkey
No full textSpecies discovery is facilitated by the application of molecular tools and the exploration of poorly studied habitats. Recent surveys in Bafa Lake, Turkey, which experienced a transition from oligo- to mesohaline conditions during the last 40 years, led to the finding of two species of the genera Lophosiphonia and Polysiphonia. Our molecular and morphological study showed that one of the species corresponded to L. obscura, while the other differs from previously described Polysiphonia species and is proposed as P. sukatarii sp. nov. The new species differs from related congeners by a rbcL sequence divergence >= 5.8% and is morphologically distinguished by having four pericentral cells and trichoblasts arranged several segments apart. Lophosiphonia obscura, and its closely related species L. hemisphaerica comb. nov. and L. boldii comb. nov., have been previously found in similar habitats in Europe and Atlantic North America. Along with its record from Bafa Lake, P. sukatarii sp. nov. has been discovered in open shore algal turfs from the Canary Islands, suggesting that it is a euryhaline species with probably a wide distribution. Our work highlights that poorly studied habitats still harbour undiscovered species and additional surveys are necessary to acquire a more comprehensive understanding of the macroalgal diversity
Cyclopentadienylmolybdenum(VI) and molybdenum(V) oxo chemistry: New synthetic and structural features
No full textConvenient syntheses for Cp, Cp*, and related cyclopentadienyl derivatives (Cp-4 = C(5)HiPr(4); CP' = C(5)H(2)tBu(3)-1,2,4) of formula [(Ring)(2)MO2O5] are described. Compound [CP2MO2O5] was produced in good yields by the rapid oxidation of red [CPMoO2](4) with PhIO in CH2Cl2. [CP*2Mo2O5] was obtained by CH3COOH acidification of aqueous solutions of [CP*MoO3]-Na+, the latter being generated in a single step from [CP*MoCl4] and more than 5 equiv. of aqueous NaOH in air. Minor quantities of [CP*MoO2](2) were also isolated from this reaction, although the formation of this by-product may be reduced by using a two-step basic hydrolysis procedure. Extension of the latter strategy also allowed the preparation of [(CP2Mo2O5)-C-4], [CP'2Mo2O5], and [(CpMoO2Cl)-Cp-4] in good yields, in addition to the by-product [CP' MoO2](2). X-ray structures are reported for compounds [(CP2Mo2O5)-C-4], [CP'2Mo2O5], [Cp*MoO2](2), [Cp'MoO2](2), and [(CpMoO2Cl)-Cp-4]. (C) Wiley-VCH Verlag GmbH, 69451 Weinheim, Germany, 2002
Validity and Reliability of the Turkish version of DSM-5 Social Anxiety Disorder Severity Scale- Child Form
No full textIntroduction: This study aimed to assess the validity and reliability of the Turkish version of the Diagnostic and statistical manual of Mental Disorders. (5th ed.) (DSM-5) Social Anxiety Disorder Severity Scale-Child Form. Method: The scale was prepared by carrying out the translation and back translation of the DSM-5 Social Anxiety Disorder Severity Scale-Child Form. The study group consisted of 31 patients that had been treated in a child psychiatry unit and diagnosed with social anxiety disorder and 99 healthy volunteers that were attending middle or high school during the study period. For the assessment, the Screen for Child Anxiety and Related Emotional Disorders (SCARED) was also used along with the DSM-5 Social Anxiety Disorder Severity Scale Child Form Results: Regarding reliability analyses, Cronbach's alpha internal consistency coefficient was calculated as 0.941, while item-total score correlation coefficients were measured between 0.566 and 0.866. A test-retest correlation coefficient was calculated as r=0.711. As for construct validity, one factor that could explain 66.0 % of the variance was obtained. As for concurrent validity, the scale showed a high correlation with the SCARED. Conclusion: It was concluded that the Turkish version of the DSM-5 Social Anxiety Disorder Severity Scale - Child Form could be utilized as a valid and reliable tool both in clinical practice and for research purposes
Sustainable fixed wireless access with blockchain secured software defined network
No full textRecently, there has been a tremendous increase in the number of service providers offering Fixed Wireless Access (FWA). The main goal of service providers is to offer guaranteed service (GB/month) for all contents by meeting sustainability Key Performance Indicators (KPIs): cost-efficiency and security. To minimize the risk of physical deployment and handle partial recovery, network slicing between service providers is considered by using the same FWA as a service by joint consideration of Infrastructure as a Service (IaaS) and Software as a Service (SaaS). This can only be handled by SoftwareDefined Network (SDN) controlled OpenFlow-based FWA. However, current OpenFlow switches in the market are used only as IaaS which does not meet cost-efficiency requirement alone. The software-defined OpenFlow tables can be increased by network administrator, which is not recommended because of having no authorization limitation and poses configuration risks on the device. Here, the research question is how can the service providers keep their own network sustainable by using infrastructure in a secure, cost-efficient, and conforming to the standard in a fair way? Therefore, Sustainable Fixed Wireless Access (SFWA) is newly proposed by OpenFlow-based blockchain in this paper. To handle low computational work and fair scheduling, Proof of Stake (PoS) consensus mechanism and Weighted Fair Content Scheduling algorithms are proposed for the validation process of the blocks that stores dynamic configuration details of service providers. At the end of the whole procedure, the valid blockchain is stored in the Secure Policy Database in OpenFlow-based FWA switches. According to performance evaluation, eMBB and URLLC contents can be served by 40% and 53% discount on cost per user with guaranteed service in FWA. The service provider offers a more sustainable network by blockchain-based secured SFWA than the conventional centralized authority-based FWA.& COPY; 2023 Elsevier B.V. All rights reserved
Does Helicobacter pylori eradication improve the symptoms of globus hystericus?
No full textBackground/aims: Globus hystericus is a feeling of a tension in the throat, irrelevant of swallowing, persisting for at least 12 weeks. Since the cause of glob us hystericus is not fully described, a controversy exists about the treatment options. We aimed in this study to determine the symptoms of gastroesophageal reflux disease, the upper gastrointestinal endoscopic findings, prevalence of Helicobacter pylori, and the post-treatment symptoms (symptoms of gastroesophageal reflux disease and/or Helicobacter pylori) in patients with a diagnosis of globus hystericus. Materials and Methods: In this study, we retrostectively evaluated the medical records of 123 patients who, after the initial diagnosis of globus sensation (globus hystericus), underwent endoscopic examination in the Department of Gastroenterology and Endoscopy at Celal Bayar University Medical School, and thereafter, were given Helicobacter pylori eradication therapy and were followed in the Gastroenterology outpatient clinic, between January 2009 and August 2010. Results: Helicobacter pylori was positive in seventy-five (60%) of the 123 patients. Heartburn, regurgitation, and inlet patch in the upper esophagus were significantly more frequent in Helicobacter pylori (+) patients than in Helicobacter pylori () patients with globus hystericus. Normal endoscopy findings were significantly more common in Helicobacter pylori (-) patients than in Helicobacter pylori (+) patients with globus hystericus. Of patients with eradicated Helicobacter pylori, 27 (50%) reported that globus symptoms had disappeared, while 12 (17.3%) of them had not observed any regression of the symptoms. Improvement of symptoms had a positive correlation with Helicobacter pylori eradication (p=0,001). Conclusions: Helicobacter pylori prevalence among cases with globus sensation is similar to that in the general population. However, Helicobacter pylori eradication was found to decrease the symptoms of globus
Oxidative stress in schizophrenia: a case-control study on the effects on social cognition and neurocognition
No full textBackground: Schizophrenia is a debilitating mental disorder that presents impairments in neurocognition and social cognition. Several studies have suggested that the etiology of schizophrenia can be partly explained by oxidative stress. However, our knowledge about the implications of oxidative stress on illness-related cognitive deficits is still far from being clear. The aim of this work was to study the role of oxidative stress molecules on social cognition and neurocognition in patients with schizophrenia. Methods: We assessed the peripheral levels of several molecules associated with oxidative stress, namely nitric oxide (NO), malondialdehyde (MDA), glutathione (GSH), homocysteine, superoxide dismutase (SOD) and neurotrophin 4/5 (NT4/5), in forty-one patients with schizophrenia and forty-three healthy participants. A battery of tests to measure neurocognition and social cognition was also administered to the schizophrenia group. Results: We found that the schizophrenia group presented substantially higher levels of oxidative stress than the control group, as revealed by elevated quantities of the pro-oxidants NO and MDA, and decreased levels of the antioxidants GSH, SOD and NT4/5. Interestingly, the levels of NT4/5, which have been shown to have antioxidant effects, correlated with executive functioning, as measured by two distinct tests (WCST and TMT). However, social cognition and symptom severity were not found to be associated with oxidative stress. Conclusions: We propose a protective role of NT4/5 against oxidative stress, which appears to have a potentially beneficial impact on neurocognition in schizophrenia
The Eating Attitudes, Sleep and Personality Characteristics, and Effects of on Acne Severity in Adolescents with Acne Vulgaris
No full textBackground: Acne vulgaris (AV) is a very common dermatological problem during adolescence. It is reported that it has a multifactorial etiology and nutritional attitudes, insufficient and poor-quality sleep may cause increased severity of AV. Aim: We aimed to investigate the sleep, eating attitudes and personality traits, and their effects on acne severity in adolescents with acne. Methods: The study sample was formed of 37 adolescent girls aged 12-18 years who presented at the University Dermatology Clinic and were diagnosed with AV and 37 adolescents without AV-matched age and gender. Eating attitude test, Diagnostic and Statistical Manual of Mental Disorders-5 (DSM-5) Personality Inventory Child Form, and child and parent forms of DSM-5 Level 2 Sleep Disorders were applied to in both groups. The AV severity assessed by using the Global Acne Grading Scale (GAGS). Psychiatric diagnosis was excluded with clinical interview according to the Schedule for Affective Disorders and Schizophrenia for school-aged children: Present and Lifetime Version (K-SADS-PL-DSM-5-T). Results: The mean age of adolescents with and without AV was 15.3 (standard deviation [SD] = 1.7), 15.4 (SD = 1.8), respectively. The mean disease duration of adolescents with AV was 20.4 (SD = 15.2) months, and the mean GAGS score was 23.24 (SD = 9.4). It was determined that eating attitudes, sleep, and personality characteristics of adolescents were similar in both groups. Eating attitudes, sleep, and personality characteristics had no direct effect on acne severity. Conclusion: Although this study demonstrates that eating attitudes, sleep, and personality characteristics were similar in adolescents with and without AV and these variables had no effect on acne severity, these results may have been obtained because of the severity scores of adolescents with AV were moderate. There is a need for researches examining these variables in adolescents with severe AV
DISTRIBUTIONS OF ESTROGEN AND PROGESTERONE RECEPTORS AND Ki-67 ON HUMAN LEIOMYOMAS, CELLULAR LEIOMYOMAS AND LEIOMYOSARCOMAS
No full textDepression, loneliness and factors influencing in Syrian refugee children
No full textAims About 3.5 million Syrian refugees are living within the borders of Turkey. This study examined depression, loneliness and factors influencing refugee children who live outside the camps and attend school in Turkey. Methods This was a descriptive study in Sanliurfa, which has the second highest refugee population in Turkey. The sample consisted of 535 students attending 6-8 grades in five schools randomly selected of 18 schools located in the city centre where the Syrian children received their education. Data were collected using the Sociodemographic Characteristics Question Form, the Depression Scale for Children and the UCLA Loneliness Scale. Data were analysed by IBM spss v23. The percentage, average and standard deviation were determined. A linear regression analysis was used to examine the independent variables affecting loneliness and depression scores, and the Backward method was used to include independent variables in the model. Significance level was considered as P The average age of the children was 13.22 +/- 1.33 years and 57.9% female. The average UCLA Loneliness Scale score was 42.95 +/- 7.77. About 42% of the children received >= 19 on the depression scale, and 65% of them received >= 40 on the UCLA Loneliness Scale. Independent variables affecting depression score and UCLA loneliness score were analysed by a linear regression analysis. The linear regression model established for depression and UCLA loneliness score was obtained as statistically significant (P < .001). Conclusion Depression and loneliness scores were relatively high in children, particularly those exposed to the devastating impacts of war. These results will make significant contributions to the planning of services to be provided for this group of children