INTEGRATION OF OPENGL GRAPHIC LIBRARIES WITH SPATIAL DATABASE AS AN ANALYSIS AND VISUALIZATION TOOL

Geographic and non-geographic attributes of spatial datasets enable them to be integrated and analyzed in many GIS applications through visualization and analysis tools. The coordinate values of spatial datasets are defined by SRS (Spatial Referencing System) and projection together, and converted to the screen (view) coordinates through coordinate transformations. In this study, we approach this issue in reverse order. We create digitized object in view coordinates by interactive tools developed in open source OpenGL graphics libraries and convert them in real world spatial data. Spatial datasets are stored as vector objects such as points, lines and polygons in spatial databases in a predefined SRS and projection system. The effectiveness of the system will be tested through the application of the spatial queries on the stored objects. Analyses include but are not limited to calculating the area and circumference of polygons and determining of the distances between two points (e.g. houses) or polygons (regions)

A GRAPHICAL EXPRESSION SUPPORTING LISTENING AND MUSICAL PERCEPTION: MUSICOGRAM TECHNIQUE IN EARLY CHILDHOOD

Various techniques are employed to enhance music listening and perception skills in early childhood. One of these techniques is the musicogram method, proposed by Wuytack in the early 1970s following research into active music listening. This study aims to examine musicogram videos targeting early childhood shared on a social media platform, YouTube. The study employed a qualitative research method, and data was collected through document analysis. For data collection, videos were accessed on the video-sharing platform YouTube using keywords “müzikogram,” “müzogram,” “musicogram,” “musicograma.” Within the filtering criteria, musicograms in Turkish and different languages were included in the study based on their highest view counts across all time periods and sorted by ranking. As a result of the study, it was observed that classical Western music was predominantly used in musicograms prepared in different languages, whereas digital music and familiar children’s songs were preferred in Turkish musicograms. It was also found that the symbolic representation used in musicograms did not correspond to the melodic rhythmic patterns of the compositions. The use of musicograms for early childhood has gained significant popularity on social media; however, there is a need to enhance the content to be more comprehensive, including theoretical and practical information

Türkiye’deki orman ürünleri ithalatçısı işletmelerin sertifikalı orman ürünlerine ilişkin görüşleri

Bu çalışmada, başta kereste olmak üzere orman ürünleri ithal ederek, bu ürünleri iç ve dış piyasaya pazarlayan özel sektör işletmelerinin, sertifikalı orman ürünlerine ilişkin görüşleri araştırılmıştır. Bu kapsamda, 56 işletmeye yüz yüze görüşme tekniği kullanılarak 15 sorunun yer aldığı anket yapılmıştır. Elde edilen anket verilerinin değerlendirilmesinde, SPSS 20 istatistik paket programından yararlanılmıştır. İstatistiksel analizlerde 0,05 anlamlılık düzeyi ölçüt alınmıştır. Verilerin güvenilirliği Cronbach’s Alpha katsayısı bulunarak belirlenmiştir. Araştırma yöntemleri olarak ise frekans analizi, yüzde analizi, bağımsız örneklem t testi, tek yönlü varyans analizi ve duncan testi kullanılmıştır. Sonuç olarak, işletmenin büyüklüğüne ve ihracat yapması durumuna göre sertifikalı orman ürünlerine ilişkin görüş farklılıklarının bulunduğu görülmüştür. İç piyasada sertifika talebinden kaynaklı satış problemlerinin çok az olduğu tespit edilmiştir. Anahtar kelimeler: Sürdürülebilir orman yönetimi, Sertifikalı orman ürünleri, Orman ürünleri ithalatçısı işletmeler, Türkiy

Vascular resection and reconstruction in pancreatic tumors

Objective: We aimed to to present our patients who underwent pancreaticoduodectomy with vascular resection and reconstruction for borderline pancreatic tumor. Materials and methods: The retrospective study included six patients undergoing pancreaticoduodenectomy with portal vein resection due to locally advanced disease over a 2- year period. Demographic characteristics, symptoms, imaging findings, exploration findings of surgery, types of resections, perioperative complications, postoperative hospital stay were recorded. Results: The patients were cosisted of 2 females and 4 males. Tumor location was in the head of the pancreas in 4 (66.7%) patients and in the body in 2 (33.3%) patients. Vasculary reconstruction was achieved by end-to-end anastomosis in 2 (33.3%) and primary closure in 4 (66.7%) cases. The hospital stay of the patients was 11 to 35 days. Intraoperative and postoperative blood product transfusion was not required in 3 of the cases. One patient was reoperated on the second postoperative day due to bleeding in the gastroduodenal anostomosis line and the bleeding was controlled. None of the patients developed pancreatic fistula. Conclusions: In cases of pancreatic cancer with vascular invasion, vascular resection- reconstruction is inevitable to provide a negative surgical margin. Vascular resection and reconstruction can be performed safely similar to standard pancreatic surgery

An expert system for diagnose of the heart valve diseases

In this paper, an expert diagnosis system is presented for interpretation of the Doppler signals of the heart valve diseases based on the pattern recognition. This paper especially deals with the feature extraction from measured Doppler signal waveforms at the heart valve using the Doppler Ultrasound. Wavelet transforms and short time Fourier transform methods are used to feature extract from the Doppler signals on the time–frequency domain. Wavelet entropy method is applied to these features. The back-propagation neural network is used to classify the extracted features. The performance of the developed system has been evaluated in 215 samples. The test results showed that this system was effective to detect Doppler heart sounds. The correct classification rate was about 94% for normal subjects and 95.9% for abnormal subjects.We want to thank, the Cardiology Department of the Firat Medicine Center, Elazig, Turkey for providing the DHS signals to us. This work was supported by Firat University Research Fund. (Project No: 527)

Poboljšanje otpornosti drva na vremenske utjecaje impregnacijom boratima i premazom od tekućeg stakla

Poor weathering performance of impregnated and coated wood products is an important issue that infl uences their appearance as well as their service life after outdoor or indoor exposure. A novel procedure to improve the weathering performance of Scots pine wood (Pinus sylvestris L.) is proposed in this study. Wood samples were impregnated with ammonium tetrafl uoroborate (ATFB), ammonium pentaborate (APB) and boric acid (BA), and afterward coated with a layer of liquid glass (LG). Surface hardness, color changes, and surface roughness of wood samples were investigated after 250 h and 500 h of exposure to artifi cial weathering. The results revealed that, except for untreated (control), all other treatment groups caused an increase in surface hardness of Scots pine after weathering. A decrease in the CIE L* value corresponds to the darkening of samples after weathering. Borates-impregnated and LG-coated Scots pine samples possessed the highest color stability. However, all treatment combinations resulted in reddish and yellowish tones after weathering. Exposure to weathering increased surface roughness of wood samples. The surface roughness of the untreated (control) group was higher than that of impregnated and coated samples.Slaba otpornost impregniranoga i premazanog drva pri izlaganju vremenskim utjecajima velik je problem koji utječe na izgled i vijek trajanja drva nakon izlaganja u eksterijeru ili interijeru. U ovom je istraživanju predložen novi postupak poboljšanja otpornosti borovine (Pinus sylvestris L.) izložene vremenskim utjecajima. Uzorci drva impregnirani su amonijevim tetrafl uoroboratom (ATFB), amonijevim pentaboratom (APB) i bornom kiselinom (BA), nakon čega su premazani tekućim staklom (LG). Ispitivana je tvrdoća površine, promjena boje i hrapavost površine uzoraka drva nakon 250 i 500 sati umjetnog izlaganja vremenskim utjecajima. Rezultati su pokazali da se na svim površinski obrađenim uzorcima borovine povećala tvrdoća njezine površine nakon izlaganja vremenskim utjecajima. Smanjenje vrijednosti CIE L* upućuje na tamnjenje uzoraka nakon izlaganja vremenskim utjecajima. Najbolju stabilnost boje pokazali su uzorci borovine impregnirani boratima i premazani tekućim staklom. Međutim, sve kombinacije površinske obrade rezultirale su povećanjem crvenoga i žutog tona nakon izlaganja uzoraka vremenskim utjecajima. Izlaganjem vremenskim utjecajima povećala se hrapavost površine uzoraka drva. No hrapavost površine kontrolnih uzoraka (površinski neobrađenih) bila je veća nego hrapavost površine impregniranih i premazanih uzoraka.No sponso

Surface characteristics of scots pine wood heated at high temperatures after weathering

This study was conducted to investigate some surface properties of wood specimens of heat treated Scots pine (Pinus sylvestris L.) after weathering such as surface hardness, surface roughness, gloss, and color changes. Heat treatment of Scots pine wood was carried out by hot air in an oven for 1, 2, and 3 hours at 210, 220, and 230°C. The results showed that generally surface hardness losses of heat treated Scots pine wood were lower than that of un-heated Scots pine wood after weathering. Heat treated Scots pine wood gave smooth surface after weathering. Except for heat treatment at 230°C for 1 and 2 hours, heat treatment resulted in better glossiness compared to un-heated Scots pine wood after weathering. According to the test results, while heat treated Scots pine wood become lighter after weathering, un-heated wood become darken after weathering. In general, heat treated wood surface to become reddish and yellowish after weathering.No sponso

In vitro evaluation of tooth-colored yttria stabilized zirconia ceramics

Effects of MoCl3 and NiCl2, originally incorporated as coloring agent, on the cellular response of3 mol% yttria stabilized zirconia (3Y-TZP) ceramics was investigated. MoCl3 and NiCl2-MoCl3incorporated, tooth-colored 3Y-TZP ceramics were produced through cold isostatic pressing at100 MPa followed by pressureless sintering at 1450°C for 2 h. Aging was performed on thesintered ceramics using distilled water in a reactor at 134°C at 2.3 bar pressure for 2 h. Thephases developed during different stages of processing were identified by X-ray diffraction(XRD) analysis. In vitro cell culture studies were carried out using L929 fibroblast cell line. Thecell viability and proliferation studies revealed that none of the specimens showed cytotoxicitywith respect to coloring. Confocal laser scanning microscope (CLSM) analyses suggested thatall of the specimens exhibited good in vitro cytocompatibility. Enhancement in cell attachment,adhesion, and proliferation was observed in all specimens via scanning electron microscope(SEM) analysis. Although the coloring process did not improve the proliferationperformance of the aged specimens, the incorporation of transition metals enhanced thein vitro performance of 3Y-TZP ceramics

The effect of artificial weathering on surface properties of thermally modified oriental beech wood

The study aimed to determine some surface parameters such as surface roughness and color changes of thermally modified Oriental beech (Fagus orientalis L.) wood samples after 750 hours of artificial weathering. The results of the study showed that artificial weathering led to an increase in surface roughness of Oriental beech wood. Thermal modification interval of 210 degrees C - 230 degrees C gave a smoother surface than unmodified samples after artificial weathering. Artificial weathering caused darker, reddish, and yellowish tone of unmodified and thermally modified Oriental beech wood. According to the study findings, surface properties of thermally modified Oriental beech wood were better than those of unmodified Oriental beech

The potential role of BMI, plasma leptin, nesfatin-1 and ghrelin levels in the early detection of pancreatic necrosis and severe acute pancreatitis: A prospective cohort study

AbstractBackground: Early prediction of disease severity in acute pancreatitis (AP) is crucial. The aim of this study was to investigate the body-mass index (BMI), plasma leptin, nesfatin-1 and ghrelin levels as potential markers predicting peripancreatic necrosis and severity in acute pancreatitis. Methods: In the study period, 97 consecutive patients with AP were prospectively analysed. Severe AP was defined according to the Atlanta Criteria. BMI was also calculated. To measure plasma Leptin, Nesfatin-1 and Ghrelin concentrations, the blood samples were obtained from patients within 24 hours of admission. Results: Out of 97 patients, 92(70 females, 22 males) were considered eligible for analysis. Of the 92 patients, 30 patients (32.6%) were assessed as severe pancreatitis. BMI and leptin levels were significantly higher in patients with severe pancreatitis. The pooled sensitivity and specificity of BMI as a predictor for the development of pancreatic necrosis were 0.90(95%CI = 0.56–0.99) and 0.70(95%CI = 0.58–0.79), respectively; with an overall area under curve value of 0.78.The pooled sensitivity and specificity of leptin levels as a predictor for development of pancreatic necrosis were 1(95%CI = 0.69–1) and 0.73(95%CI = 0.62–0.82),respectively; with an overall area under curve value of 0.82.Nesfatin-1 and ghrelin levels showed no significant difference in patients with mild pancreatitis (6.97 ± 0.84 ng/ml and 2.3(1.0–9.9);respectively) and severe pancreatitis (6.74 ± 0.65 ng/ml and 2.0(1.9–9.9); respectively) (p = 0.1923 and 0.8531;respectively). Conclusion: BMI and plasma leptin levels both were correlated with the severity of pancreatitis. Leptin levels showed better area under the curve, sensitivity and specificity values compared to BMI in prediction of pancreatic necrosis.Nesfatin-1 and ghrelin levels were not found to be predictors of the severity of disease