The power of informal communication and perceived organizational support on energy at work and extra-role behavior: A survey on teachers

This research studies the effect of energy at work, internal-external informal communication and perceived organisational support on extra role behaviour. The population of survey included teachers (479 teachers at 25 elementary and middle schools) at The Ministry of National Education located in the Burdur in Turkey. Research method is a survey with a questionnaire and participants has been reached with the convenience sampling method. Two model (purposed and revised) was examined by structural equation model approach. According to the findings, internal informal communication increases energy at work, and therefore, energy at work has a considerably positive effect on extra role behaviour. Besides that, perceived organisational support has seriously positive effect on internal informal communication. As inferred from these findings, the increase of perceived organisational support will also increase internal informal communication, and the increase of communication will enable lecturers to be more energetic, and hence, such energy will trigger lecturers to make extra efforts for their organizations

Benign prostat hiperplazisi olan hastalarda transizyonel zon hacmi total prostat hacmi serum serbest ve total prostat spesifik antijen oranı arasındaki ilişki

Başkent Üniversitesi Ankara hastanesi üroloji kliniğine 2004-2013 yılları arasında alt üriner sistem semptomları ve PSA yüksekliği olan TRUS eşliğinde prostat iğne biyopsisi yapılan 563 hasta retrospektif olarak incelendi. Çalışmamıza dahil edilen hastaların tanı sırasındaki yaşları 42 ile 89 arasında olup bu hastaların yaş ortalaması 63,4 ’dü. Hastalar yaş grubuna göre dört gruba ayrıldı .Bu yaş gruplarında serbest - total PSA, transizyonel zon hacmi, total prostat hacmi ve oranları incelendi. Ortaya çıkan bulgular ise ortalama PSA 10.08 ng/ml, ortalama serbest PSA 2.1 ng/ml, ortalama prostat hacmi 64.93 ml, ortalama transizyonel prostat hacmi 47.47, ortalama serbest total PSA oranının ortalaması % 20.14, transizyonel prostat hacminin tüm prostat hacmine oranının ortalaması % 71.32 olarak bulundu. Hastaların yaş ile prostat hacimleri arasında ileri derecede korelasyon olduğu görüldü. Yaş artışı ile özellikle serbest PSA arasında korelasyon olduğu görüldü. Ancak serbest/total psa ile transizyonel zon hacmi/total prostat hacmi arasındaki ilişki istatiksel olarak anlamlı ancak yüksek derecede korelasyon göstermemektedir. Bu sonuçlar ışığında prostat hacimlerini gösterebilmek için en uygun yaklaşım TRUS’dir. Ancak TRUS yapılma imkanı olmadığı zaman prostat volümünü göstermek için özellikle serbest PSA düzeyleri kullanılabili

Determination by Landsat Satellite Imagery to Local Scales in Land and Pollution Monitoring: A Case of Buyuk Melen Watershed (Turkey)

Buyuk Melen Watershed provides drinking water from the Western Black Sea region to Istanbul province, which Buyuk and Kucuk Melen rivers, Asar, Ugur and Aksu rivers. Many settlement areas, fertilized agricultural lands, industrial plants and solid/liquid waste dumping areas have present in Melen watershed, causing substantial pollution problems. Melen watershed has been at a serious risk of pollution that a lot of settlement areas, agricultural lands, industrial facilities, and solid and liquid waste. In this study, LANDSAT satellite data was used to monitor the status of this area on the potential of the region studied. In the watershed change of 1987, 2001, 2006 and 2010 and also supported by satellite data. However, contaminants in the watershed discharges to the inner parts as shown from the satellite data have also been observed that the increase in pollution

Üniversite Uluslararası Yayın Performansının Bibliyometrik Analizler ile İncelenmesi: Van Yüzüncü Yıl Üniversitesi Örneği

Üniversitelerin performanslarını ölçmek için çeşitli metrikler kullanılmaktadır. Yayın performansının ölçülmesi bu metriklerin en yaygın olanlarından biridir. Bu çalışmanın amacı üniversitelerin akademik performanslarının bibliyometrik verilere dayalı olarak incelenmesine ilişkin örnek bir model ortaya koymaktır. Bu bağlamda Van Yüzüncü Yıl Üniversitesinin uluslararası yayın performansını bibliyometrik ve betimleyici analizler kullanarak bilimsel haritalama ve performans analizi kapsamında incelenmiştir. Veri seti Web of Science (WOS) veri tabanı üzerinden mensup olunan kurum bilgisi Van Yüzüncü Yıl Üniversitesi olan tüm araştırmalar içerisinden yalnızca makaleler filtrelenerek 8734 sonuç kullanılarak oluşturulmuştur. Araştırma 2022 yılı Nisan ayına kadar olan SCI/SCI-Expanded, SSCI, ESCI ve AHCI indekslerinde taranan makalelerinin bibliyometrik verilerini kapsamaktadır. En çok yayın yapılan dergiler, WOS araştırma alanları, anahtar sözcükler ve metin verilerine dayalı bibliyometrik haritalar incelendiğinde araştırmaların çoğunlukla Sağlık ve Fen Bilimleri alanlarında gerçekleştirildiği belirlenmiştir. Ortak yazarlı çalışmalardaki ortaklıklar incelendiğinde yayınların önemli bir kısmının çok yazarlı olduğu ve ortakların YYÜ ve yakın coğrafyadaki kurumlarda görev yaptığı bulunmuştur. Özellikle gelişmiş ülkeler ile uluslararası ortaklı araştırmaların yayın atıf oranlarının diğerlerine kıyasen yüksek olduğu bulunmuştur. Buna göre uluslararası ortaklıkların nitelik açısından çalışmalara katkısının olduğu da aşikârdır. Bu araştırmada YYÜ, bibliyometrik verilere dayalı olarak performans değerlendirilmesi kapsamında örnek bir durum olarak ele alınmıştır. Gelecek araştırmalarda hedef performansı sergileyen bir üniversite ile karşılaştırmalı olarak bibliyometrik analizlerinin yapılmasının karar vericilere daha fazla bilgi sunabileceği düşünülmektedir

Shaping Ability of Reciproc Blue Reciprocating Instruments with or without Glide Path in Simulated S-shaped Root Canals

Background. The present study aimed to compare the shaping ability of Reciproc Blue instruments with or without the creation of glide path in simulated S-shaped root canals. Methods. Root canals of 30 #15.02 clear resin S-shaped blocks were dyed using ink and photographed. Then the blocks were randomly divided into 2 groups as Group A: Reciproc Blue with glide path was created with ProGlider and Group B: Reciproc Blue with no glide path preparation (n = 15). The blocks were also photographed after preparation. The pre- and post-preparation images were superimposed and evaluated at 9 different measurement points according to the 3 zones, as coronal straight, first curvature, and apical curvature zones. The data were evaluated with independent t-test or Kruskal-Wallis tests with 5% significance threshold. Results. Group B removed greater amount of material from the inner aspect of simulated canal at the first curvature and apical curvature zones and from the outer aspect of the canal at apical curvature zone (P < 0.05). Both groups lead transportation and the transportation width caused by Group B was significantly greater in the levels of apical curvature zone (P < 0.05). Conclusion. Glide path preparation using ProGlider rotary instrument improved the shaping ability of Reciproc Blue R25 instrument by leading to less transportation and maintain centering ability

Comparison of Two Retention Appliances with Respect to Clinical Effectiveness

Objective:The aim of this study was to compare the clinical effectiveness of Essix and Hawley retainers during the retention period.Methods:A total of 30 subjects whose fixed orthodontic treatment results were evaluated according to the American Board of Orthodontics Phase III Objective Grading system were included in this study. After the removal of orthodontic attachments, the study participants were equally divided into two retention protocols: upper-lower Essix and upper-lower Hawley. The subjects were instructed to wear their retainers full time for 6 months, except during meals, and during nights only for 6 months. The clinical effectiveness of the retainers was evaluated according to the overjet, overbite, maxillary, and mandibular intercanine widths, intermolar widths, arch lengths, irregularity indexes, and lateral cephalometric measurements. All dental model and lateral cephalometric measurements were performed by the same investigator during three periods: pre-treatment, post-treatment, and post-retention.Results:The overjet, overbite, maxillary, and mandibular intercanine widths; intermolar widths; and arch lengths and lateral cephalometric measurements were not statistically significantly different between the groups and identified time periods. Although the maxillary and mandibular irregularity indexes increased from the post-treatment to post-retention periods, the difference was not statistically significant. Pre-treatment, post-treatment, and post-retention lateral cephalometric measurements were not statistically significantly different between and within the groups.Conclusion:According to the results of a repeated-measures analysis of variance with two factors, and although an increase was found in the maxillary and mandibular irregularity indexes, the clinical effectiveness of Essix and Hawley retainers was found to be similar during the retention period

Coexistence of cervico-thoracic extradural en-plaque meningioma with multiple intracranial meningiomas

Meningioma is one of the most common tumors in the spinal cord. Extradural and en-plaque variety of meningioma occur less frequently. A 47-year-old woman is presented with radiculopathy signs. Magnetic resonance imaging revealed a lesion from C6 through T3 vertebral levels compressing the cord both anteriorly and posteriorly. Subtotally excision was performed and histopathologic signs showed transitional type of meningioma (WHO Grade 1). Post operatively, she had good neurological recovery. Intraoperative findings point out that the en-plaque meningioma was pure extradural. Twelve cases of pure extradural en-plaque meningioma have been reported in the literature. Besides, to the best our knowledge coexistence of “en plaque” spinal epidural meningioma with meningiomas in cranial cavity has not been reported. Complete resection is mandatory to prevent recurrence. Moreover, it is considerably difficult to remove the parts of tumor over anterior of the dura without complication

Ultrasound guided percutaneous radiofrequency thermal ablation of symptomatic uterine fibroids — results from a single center and 52 weeks of follow up

Objectives: Uterine fibroids are one of the most common female disorder of the reproductive age and may cause abnormal uterine bleeding (UAB), pain or infertility. Our aim was to evaluate the safety and efficacy of percutaneous radio frequency ablation (RFA) in reducing clinical symptoms, fibroid volume and improving laboratory parameters.Material and methods: Thirty-five symptomatic patients with 54 uterine fibroids were enrolled. Preintervention evaluation was made for each participant and included ultrasonography to assess the volume, largest diameter and location of the fibroid and Visual Analogue Scale (VAS) for quantifying the degree of menstrual pain. The magnitude of menstrual bleeding was scored for each patient by using pictogram. Preprocedural laboratory assessment included hemoglobulin and hematocrit. Treatment efficacy was evaluated at 3, 6 and 12 months after the intervention with ultrasound (US) measurements,symptom scores and laboratory parameters.Results: Pretreatment mean Hb was significantly lower than those at 3, 6 and 12 month post treatment visits (p &lt; 0.001). The pretreatment median volume was significantly higher than the median volumes measured at 3, 6 and 12 months after RFA (p &lt; 0.001). Visual Analogue Score (VAS) for pain was significantly lower than baseline values at 6 and 12 month visits (p &lt; 0.01). Pretreatment bleeding scores and the number of patients in the predefined severe bleeding category were significantly decreased.Conclusions: US guided RF ablation of uterine fibroids is relatively safe and effective procedure. It can be applied to the fibroids with varying localizations and sizes. It reduces the fibroid volume and obviate a need for more invasive treatment