3036 research outputs found
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Maternal Characteristics and Obstetric and Neonatal Outcomes of Singleton Pregnancies Among Adolescents
No full textBackground: Adolescent pregnancy remains a global public health issue with serious implications on maternal and child health, particularly in developing countries The aim of this study was to investigate maternal characteristics and obstetric and neonatal outcomes of singleton pregnancies among adolescents.Material/Methods: A total of 241 adolescent women who gave birth to singletons between January 2015 and December 2015 at our hospital were included in this descriptive cross-sectional study. Data on maternal sociodemographic and obstetric characteristics as well as neonatal outcome were recorded.Results: Primary school education (66.0%), lack of regular antenatal care (69.7%), religious (36.7%) and consanguineous (37.0) marriage, Southeastern Anatolia hometown (34.9%) and Eastern Anatolia hometown (21.2%) were noted in most of the adolescent pregnancies, while 95% were desired pregnancies within marriage. Pregnancy complications were noted in 19.5% (preeclampsia in 5.8%) and cesarean delivery was performed in 44.8% of adolescent pregnancies. Preterm delivery rate was 27.0% (20.3% were in >34 weeks). Overall, 13.3% of neonates were admitted to neonatal intensive care unit (NICU) in the postpartum period (prematurity in 28.1%), while 25.3% were re-admitted to NICU admission in the post-discharge 1-month (hyperbilirubinemia in 55.7%). Adolescent pregnancies were associated considerably high rates of fetal distress at birth (28.7%), preterm delivery (26.9%), and re-admission to NICU after hospital discharge (25.3%).Conclusions: In conclusion, our findings indicate that along with considerably high rates of poor antenatal care, maternal anemia and cesarean delivery, adolescent pregnancies were also associated with high rates for fetal distress at birth, preterm delivery, and NICU re-admission within post-discharge 1-month
COVID-19 Pandemisinin Kamu Politikalarına Etkisi
No full textCOVID-19 Pandemisinin Kamu Politikalarına Etkis
MAP-ACO: An efficient protocol for multi-agent pathfinding in real-time WSN and decentralized IoT systems
No full textEfficient energy consumption is one of the main problems in wireless sensor networks routing protocols. Since the sensor nodes have limited battery level and memory space, it is important to manage these resources efficiently. Although there are studies in this subject in recent years, it is lacking in concurrent and real-time environments with multi-agents. The importance of this issue is increasing more especially for decentralized IoT systems. This paper presents a novel routing protocol based on ant colony optimization for multi-agents that manages network resources adequately in real-time conditions. The proposed method is used, both to find the next destination of ants, and to manage pheromone update and evaporation rate operators. This method takes into account some key parameters such as remaining energy, buffer size, traffic rate, and distance when selecting the next destination under different conditions. The proposed method finds the optimal paths with low energy consumption thereby prolonging the network lifetime in concurrent and parallel conditions. The simulation results of the proposed method have given good results, in terms of network lifetime and energy consumption, when compared with other ant colony optimization (ACO)-based routing protocols
COVID-19 Pandemisinin Kamu Politikalarına Etkisi
No full textCOVID-19 Pandemisinin Kamu Politikalarına Etkis
Search for the semileptonic decay D0(+) -> b(1) (1235)(-(0))e(+)v(e)
No full textUsing 2.93 fb-1 of e(+)e(-) data collected at a center-of-mass energy root s = 3.773 GeV with the BESIII detector operating at the BEPCII collider, we search for the semileptonic D0(+) decays into a b(1)(1235)(-(0)) axial-vector meson for the first time. No significant signal is observed for either charge combination. The upper limits on the product branching fractions are BD0 -> b1(1235)-e+ve. Bb1(1235)-->omega pi- b1(1235)0e+ve center dot B-b1(1235)0 ->omega pi 0 < 1.75 x 10(-4) at the 90% confidence level
Celiac disease and COVID-19 pandemic : should we worry?
No full textBackground and study aims : The Coronavirus Disease 2019 (COVID-19) epidemic especially worries people with chronic diseases the entire world. In this study, the frequency, and clinical course of COVID-19 infection in patients with Celiac disease (CD) were investigated. CD patients' adherence to purchasing gluten free products (GFPs), the strict diet, and how patients' anxiety affects CD symptoms during the COVID-19 outbreak were also examined.Patients and methods : A detailed-questionnaire was administered by telephone, and e-mail to the CD patients to determine the status of these patients in obtaining GFPs, and dietary compliance during the COVID-19 pandemic. State and trait anxiety levels of patients were evaluated using the State-trait Anxiety Inventory- (STAI) scale. Additionally, whether patients with CD were diagnosed with COVID-19, and if diagnosed, their clinical course of the disease were investigated.Results : One hundred and one patients were included in the study. The total number of patients who could obtain GFPs decreased significantly in the pandemic than before the pandemic. The patients' state anxiety index was 40.7 +/- 7.9, and the trait anxiety index was 44.5 +/- 8.5, and all patients were evaluated as mildly anxious. During the pandemic, two female patients were diagnosed with COVID-19.Conclusion : CD patients did not have any additional risk compared to other individuals in terms of becoming infected with COVID-19 for patients under gluten free diet, and these patients will have a similar clinical course as individuals without CD
Realization of modified elliptical shaped dielectric lens antenna for X band applications with 3D printing technology
No full textPlacing dielectric lens structures into an antenna's aperture has proven to be one of the most reliable methods of enhancing its gain. However, the selected material and the prototyping method usually limit their fabrication process. With the advances in 3D printing technology and their applications, the microwave designs that were either impractical or impossible in the past to manufacture using traditional methods, are now feasible. Herein, a novel prototyping method by using 3D-printer technology for low-cost, broadband, and high gain dielectric lens designs has been presented. Firstly, the elliptical lens design has been modeled in the 3D EM simulation environment. Then fused deposition modeling based 3D-printing method has been used for the fabrication of the dielectric lens. The measured results of the 3D printed antenna show that the lens antenna has a realized gain of 17 to 20.5 dBi over 8-12 GHz. Moreover, the comparison of the prototyped antenna with its counterpart dielectric lens antenna in the literature has indicated that the proposed method is more efficient, more beneficial, and has a lower cost. © ACE
Media and Ideology: Mutual Signifiers That Signify Each Other
No full textThis chapter aims mainly to provide a framework towards the sophisticated relation between "media" and "ideology" by putting the key thinkers' arguments, such as Marx, Gramsci, Althusser (and also Zizek's and Hall's complementary contributions), at the center. In order to fulfill this aim, the chapter will, firstly, elaborate on Marx's conception of ideology, as Marx's understanding of "ideology," "human being," and "the world" directly determines not only the direction and but also the content of the debates on media and ideology. Secondly, Gramsci's theory of "hegemony" will be scrutinized. In this way, the view claiming that the primary function of media is to produce "hegemony" through which the capitalist class maintains its own privileged position in society will be discussed. Finally, the chapter will discuss Althusser's notion of "ideology" and "ideological state apparatus." Thus, the reader will notice the way how media and ideology mutually include each other. © 2020, IGI Global
THE FUZZY-BASED SMART CHARGING MANAGEMENT SYSTEM FOR AN ELECTRIC VEHICLE PARKING LOT INCLUDING A ROOF-TOP PV SYSTEM
No full textElectric vehicles (EVs) and photovoltaic (PV) systems are one of the most appropriate coupled facilities with each other in
smart grids. The goal of this study is to develop a fuzzy-based smart charging management system (SCMS) in order to
enable more economic benefits to the EV parking lot from the roof-top PV system under market conditions with dynamic
pricing. To achieve this, PV model, parking lot model and energy market model are generated and they are considered as
the inputs of the SCMS. The SCMS decides whether the energy generated by the PV system is injected into the grid or used
for charging electric vehicles. All models are generated using real system data in this study. Furthermore, using bi-facial
PV panels in the PV system simulation is one of the novel approaches of this study. Charging EVs in the PLs from
renewable energy resources is very important as it will facilitate the management of this mobile load in the near future.
The results of this study will both help to manage the EV load and increase the profit of the EV P
Forecasting Stock Market Indices with the Composite Leading Indicators: Evidence from Turkey
No full textThe objective of this study is to evaluate the empirical performance of composite leading indicators (CLIs) in forecasting stock market indices for Turkey in the period from 2007:03 through 2019:07. After examining the stationarity of the series by using Narayan and Popp (2010) and Enders and Lee (2012) Fourier ADF unit root tests, the causality relationship from the composite leading indicators to stock market indices are tested by employing Enders and Jones (2016) Fourier Granger causality test. The results support the evidence of a causality relationship from composite leading indicators to BIST100, BIST Financial and BIST Industrial Indexes under structural breaks