21 research outputs found

    The effects of product and process innovations on employment growth: evidence from Turkey

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    This study aims to provide an empirical evidence on the relationship between innovation and employment growth at the firm level. I separately analyze the effects of the process and product innovations for Turkish manufacturing and service sector. Depending on data availability, I cover three consecutive periods: 2006-2008, 2008-2010 and 2010- 2012. I use the structural framework developed by Harrison et al. (2014). The Community Innovation Survey (CIS) which is collected by Turkish Statistical Office (Turkstat) provides me the data needed to disentangle the effects of product and process innovations on employment growth. I find that product innovations increase employment growth, whereas process innovations do not account for job destruction in the manufacturing sector, but are responsible for significant but small displacement effect during the period 2008-2010 and 2010-2012 in the service sector

    Pulmonary artery hypertension as an initial manifestation of Takayasu's arteritis: A case report

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    AbstractTakayasu's arteritis is a rare chronic vasculitis of unknown etiology. Symptomatic pulmonary artery disease may be the first sign of Takayasu's arteritis. We describe a 51-year-old woman who presented with severe dyspnea. The initial evaluation and routine exams suggested the presence of pulmonary hypertension of unknown etiology. Absence of bilateral radial and brachial pulses in the physical examination led to an angiographic study, which confirmed the diagnosis of Takayasu's arteritis with severe pulmonary hypertension. During bosentan therapy, the patient's clinical symptoms and exercise capacity improved and her 6-min walking distance increased. We emphasize the importance of considering Takayasu's arteritis in the early diagnosis and therapy of pulmonary artery hypertension

    RGBD Data Based Pose Estimation Why Sensor Fusion

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    Performing high accurate pose estimation has been an attractive research area in the field of computer vision; hence, there are a plenty of algorithms proposed for this purpose. Starting with RGB or gray scale image data, methods utilizing data from 3D sensors, such as Time of Flight (TOF) or laser range finder, and later those based on RGBD data have emerged chronologically. Algorithms that exploit image data mainly rely on minimization of image plane error, i.e. the reprojection error. On the other hand, methods utilizing 3D measurements from depth sensors estimate object pose in order to minimize the Euclidean distance between these measurements. However, although errors in associated domains can be minimized effectively by such methods, the resultant pose estimates may not be of sufficient accuracy, when the dynamics of the object motion is ignored. At this point, the proposed 3D rigid pose estimation algorithm fuses measurements from vision (RGB) and depth sensors in a probabilistic manner using Extended Kalman Filter (EKF). It is shown that such a procedure increases pose estimation performance significantly compared to single sensor approaches

    Method and Apparatus for Frame Interpolation

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    The invention generally provides a method and apparatus for up-converting the frame rate of a digital video signal, the method comprising: receiving a digital video signal containing a first frame and a second frame; finding in one of the received frames, matches for objects in the other of the received frames; utilising 3 dimensional position data in respect of the objects within the frames to determine 3 dimensional movement matrices for the matched objects; using the 3 dimensional movement matrices, determining the position of the objects in a temporally intermediate frame and thereby generating an interpolated frame, temporally between the first and second frame

    Joint performance of medium carbon steel-austenitic stainless steel double-sided TIG welds

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    AISI 1040 and AISI 304 steel plates of 10 mm were joined without pretreatment by double-sided TIG arc welding (DSAW). Joints were manufactured by using welding currents of 420, 440, and 460 A. The microstructural variations in the interface of the weld samples were defined by optical microscopy, scanning electron microscopy, energy dispersive spectroscopy and microhardness analysis. V-notch impact and tensile tests were done to detect the weld strength of the weld samples. In DSAW welding of different steels, a full penetration joint was achieved without opening the weld edge. The current intensity had a major effect on the symmetrical and hourglass shape in welds. Welding at 460 (A) showed acceptable joint quality. Tensile and impact energy quantities of welded joints had significant ratios. Fractures in the weld metal of the samples were ductile mode. © 2022 Walter de Gruyter GmbH, Berlin/Boston

    Temporal and seasonal variations in phytoplankton community structure in Uzuncayir Dam Lake (Tunceli, Turkey)

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    Seasonal variations in species composition and growth dynamics of phytoplankton in Uzuncayir Dam Lake (Tunceli, Turkey) were studied in relation to ecological factors by collecting horizontal water and phytoplankton samples for over a year. A total of 46 phytoplankton taxa were recorded, where Bacillariophyta was the most abundant in species number representing 24 taxa. Diatoms were the most conspicuous phytoplankton in terms of abundance as well as occurrence frequency. Charophyta, Chlorophyta, Cyanobacteria, Ochrophyta, Miozoa, and Euglenozoa were the least abundant. However, some Diatoms (Gyrosigma attenuatum, Hippodonta hungarica, Meridion circulare, Nitzschia clausii, Nitzschia frustulum, Pantocsekiella ocellata, Rhoicosphenia abbreviata), Charophytes (Cosmarium granatum, Mougeotiopsis calospora), Cyanobacteria (Leiblenia epiphytica, Planktothrix agardhii); Dinoflagellates (Ceratium hirundinella, Parvodinium africanum, Parvodinium inconspicuum, Peridinium cinctum), and Ochrophyta (Dinobryon pediforme) were also noticeable, with their occurrence in all seasons. Canonical correspondence analysis (CCA) and principal component analysis (PCA) were employed to analyze the relationship between occurrence and abundance of phytoplankton species as well as the ecological factors. The results showed that pH and the concentrations of NH4, NO3, and PO4 influenced seasonal occurrence and abundance of phytoplankton species in the lake. Uzuncayir Dam Lake may be classified as an oligotrophic lake with the mean value of nitrate 2.62 mg L-1 and phosphate 0.23 mg L-1 as supported by the occurrence of various phytoplankton groups. Findings related to pollution indices yielded that Uzuncayir Dam Lake is on the edge of the moderate state of organic pollution

    The Relationsip with Life Satisfaction Between Health Promoting Behaviours of Special Education Teachers (Kayseri City Sample)

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    The Relationsip with Life Satisfaction Between Health Promoting Behaviours of Special Education Teachers (Kayseri City Sample)At this study it was aimed to investigate the relationship between life satisfaction and health promoting behaviour of teachers worked special education schools in Kayseri city. Randomly selected, 102 teachers were participated to the study volunteerly. Volunteers were performed demographic questionnaire, Healthy Lifestyle Behaviors Scale II (HLBS II) and life satisfaction inventory. Data were analyzed by using IBM SPSS (version 20.0). Spearman Correlation parameter calculated in order to comment the relationship with data, Multiple regretion analysis was performed for the predictive power of life satisfaction for health promoting behaviour levels of participants. According to analysis, a positive relationship was found between life satisfaction and health promoting behaviour levels of teachers and it was found that life satisfaction levels predictived health promoting behaviour levels. As a result of this study, it was found that teachers had higher life satisfaction, were tend towards to higher health promoting behaviours. It was thought that increased life satisfaction of teachers could increase their health promoting behaviours, so that quality of education, they provided to handicapped students, would increase in the same parallels.Keywords: Special education, Teacher, Life Satisfaction, Health Promoting Behaviours</p

    Clinical and metabolic characteristics of Turkish adolescents with polycystic ovary syndrome

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    The aim of this study was to investigate the clinical, endocrine, metabolic features and prevalence of metabolic syndrome (MBS) in Turkish adolescents with polycystic ovary syndrome (PCOS) and the differences in metabolic parameters between adolescent PCOS with or without the presence of polycystic ovaries (PCO) on ultrasound. Subjects (n = 77) were classified into two groups: oligomenorrhea (O) and clinical and/or biochemical hyperandrogenism (HA) (n = 38), without PCO and O + HA with PCO (n = 39). The control group consisted of 33 age-matched adolescents. Adolescents with PCOS had a significantly higher body mass index (BMI), waist circumference and levels of LH, LH/FSH ratio, triglyceride, insulin, HOMA-IR, free androgen index and lower levels of SHBG and FSH. After adjustment for BMI, LH, LH: FSH ratio remained significantly higher. Adolescents with PCOS had a higher prevalence of MBS. No significant differences in lipid profiles, insulin levels and insulin sensitivity in both the PCOS groups were seen. HDL-C levels were lower in the O + HA + PCO group compared to the controls. BMI may be the major contributing factor in the development of metabolic abnormalities in adolescents with PCOS.Impact statement Many studies have investigated the effect of PCOS on metabolic and cardiovascular risks. It is thought that PCOS increases metabolic and cardiovascular risks. Increase in metabolic and cardiovascular risks associated with PCOS may be handled with early diagnosis and early intervention of PCOS in adolescents, although the diagnosis of PCOS in adolescents could be hard because of the features of PCOS overlapping normal pubertal physiological events. However, early identification of adolescent girls with PCOS may provide opportunities for prevention of well-known health risks associated with this syndrome and reduction of long-term health consequences of PCOS by reducing androgen levels and improving metabolic profile. Our results also support that BMI may be the major contributing factor in the development of metabolic abnormalities in adolescents with PCOS
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