bluuebunny/crossref_metadata_2025_split huggingface dataset:
FARKLI SOSYO-EKONOMİK DÜZEYLERDEKİ ANNE TUTUMLARININ ÇEŞİTLİ DEĞİŞKENLER AÇISINDAN İNCELENMESİ
Authors: ŞIVKIN Esra 
Published: October 2019

Alt
ve üst sosyo-ekonomik düzeyde 60-72 aylık çocukların anne tutumlarının
incelendiği bu araştırmanın örneklemini Ankara’da ikamet eden 562 ebeveyn ve
çocuk oluşturmuştur. Alt sosyo-ekonomik bölge olarak Altındağ, üst
sosyo-ekonomik bölge olarak ise Çankaya bölgesi incelenmiştir. Veri toplama
aracı olarak Ebeveyn Tutum Ölçeği kullanılmıştır. Araştırmanın sonunda; alt ve
üst sosyo-ekonomik düzeydeki annelerin tutumları arasında ekonomik durum, yaş ve
cinsiyete bağlı olarak anlamlı farklılıklar bulunmuştur. Çalışan annelerde
demokratik tutum daha fazla bulunmuştur (P&lt;0,05). Ekonomik durumunu iyi değerlendiren annelerde izin verici
tutum daha fazla görülmüştür (P&lt;0,05).
ekonomik durumunu iyi ve düşük olarak değerlendiren çalışan ve
çalışmayan anne tutumları arasında diğer değişkenler açısından anlamlı
farklılıklar bulunmuştur.The sample of this study, in which parents' attitudes of 60-72
months old children at lower and upper socio-economic levels were examined,
consisted of 562 parents and children residing in Ankara. The lower
socio-economic region was studied as Altındağ and the upper socio-economic
region as the Çankaya region. Parental Attitude Scale was used to collect data.
At the end of the research; Significant differences were found between mothers'
attitudes at lower and upper socio-economic levels depending on economic
status, age and gender. The democratic attitude was found to be higher in
working mothers (P &lt;0.05). The permissive attitude was found more in mothers
who evaluated their economic status better (P &lt;0.05). Significant
differences were found in terms of other variables among the working and
non-working mother attitudes evaluating their economic status as good and low.
Posterior fossa syndrome and increased mean diffusivity in the olivary bodies
Authors: Yecies Derek , Jabarkheel Rashad , Han Michelle , Kim Yong-Hun , Bruckert Lisa , Shpanskaya Katie , Perez Augustus , Edwards Michael S. B. , Grant Gerald A. , Yeom Kristen W. 
Published: October 2019

OBJECTIVEPosterior fossa syndrome (PFS) is a common postoperative complication following resection of posterior fossa tumors in children. It typically presents 1 to 2 days after surgery with mutism, ataxia, emotional lability, and other behavioral symptoms. Recent structural MRI studies have found an association between PFS and hypertrophic olivary degeneration, which is detectable as T2 hyperintensity in the inferior olivary nuclei (IONs) months after surgery. In this study, the authors investigated whether immediate postoperative diffusion tensor imaging (DTI) of the ION can serve as an early imaging marker of PFS.METHODSThe authors retrospectively reviewed pediatric brain tumor patients treated at their institution, Lucile Packard Children’s Hospital at Stanford, from 2004 to 2016. They compared the immediate postoperative DTI studies obtained in 6 medulloblastoma patients who developed PFS to those of 6 age-matched controls.RESULTSPatients with PFS had statistically significant increased mean diffusivity (MD) in the left ION (1085.17 ± 215.51 vs 860.17 ± 102.64, p = 0.044) and variably increased MD in the right ION (923.17 ± 119.2 vs 873.67 ± 60.16, p = 0.385) compared with age-matched controls. Patients with PFS had downward trending fractional anisotropy (FA) in both the left (0.28 ± 0.06 vs 0.23 ± 0.03, p = 0.085) and right (0.29 ± 0.06 vs 0.25 ± 0.02, p = 0.164) IONs compared with age-matched controls, although neither of these values reached statistical significance.CONCLUSIONSIncreased MD in the ION is associated with development of PFS. ION MD changes may represent an early imaging marker of PFS.
Contemporary management and outcome of myelomeningocele: the Rotterdam experience
Authors: Spoor Jochem K. H. , Gadjradj Pravesh S. , Eggink Alex J. , DeKoninck Philip L. J. , Lutters Bart , Scheepe Jeroen R. , van Meeteren Jetty , de Laat Peter C. J. , van Veelen Marie Lise , de Jong Tjeerd H. R. 
Published: October 2019

OBJECTIVEMyelomeningocele (MMC) is the most common form of spina bifida, with a lifelong impact on the quality of life for infants born with this condition. In recent decades, fetal surgery has evolved from an experimental therapy to standard of care for many centers in the world. In this study, the authors aimed to provide an overview of the current management and outcomes for infants with MMC managed at their institution. This then provides a center-specific historical cohort for comparison with future antenatal-treated MMC cases.METHODSThis is a retrospective, single-institution cohort study including all consecutive MMC cases between January 1, 2000, and June 1, 2018, at Erasmus MC. Outcome data included closure of the defect (location, timing, and surgical parameters), hydrocephalus management, Chiari malformation type II (CMTII) management, incidence of spinal cord tethering and outcome, motor outcomes, and continence.RESULTSA total of 93 patients were included with predominantly lumbosacral lesions. Two patients died during follow-up. Hydrocephalus was present in 84%, with a 71% ventriculoperitoneal shunt reoperation rate. Surgery was performed in 12% for a tethered spinal cord at a mean age of 8 years. Decompression surgery was performed in 3 patients for CMTII. Special education in 63% was significantly associated with hydrocephalus (p < 0.015). Nineteen percent of patients were able to walk independently, and 47% were nonambulators. Social continence for urine was obtained in 75% of patients, 4% had fecal incontinence.CONCLUSIONSThis study provides an overview of current MMC outcomes at the authors’ center and will serve as a historical cohort for comparison with future fetal surgery cases operated on at the center in the coming years. Apart from a relatively low surgical untethering rate, the authors’ outcome data are comparable to those in the literature. Hydrocephalus is highly prevalent in postnatally treated MMC patients; in this study as in much of the literature, hydrocephalus is correlated with a low cognitive function. Fetal surgery for MMC halves the need for shunt treatment in a select group of MMC pregnancies, constituting a major indication for us to undergo the transition to a fetal surgery center. The fetal benefits of open antenatal surgery for MMC are well established, yet long-term data on especially tethered spinal cord are eagerly awaited.
Myelomeningocele-associated hydrocephalus: nationwide analysis and systematic review
Authors: McCarthy David J. , Sheinberg Dallas L. , Luther Evan , McCrea Heather J. 
Published: October 2019

OBJECTIVEMyelomeningocele (MMC), the most severe form of spina bifida, is characterized by protrusion of the meninges and spinal cord through a defect in the vertebral arches. The management and prevention of MMC-associated hydrocephalus has evolved since its initial introduction with regard to treatment of MMC defect, MMC-associated hydrocephalus treatment modality, and timing of hydrocephalus treatment.METHODSThe Nationwide Inpatient Sample (NIS) database from the years 1998–2014 was reviewed and neonates with spina bifida and hydrocephalus status were identified. Timing of hydrocephalus treatment, delayed treatment (DT) versus simultaneous MMC repair with hydrocephalus treatment (ST), and treatment modality (ETV vs ventriculoperitoneal shunt [VPS]) were analyzed. Yearly trends were assessed with univariable logarithmic regression. Multivariable logistic regression identified correlates of inpatient shunt failure. A PRISMA systematic literature review was conducted that analyzed data from studies that investigated 1) MMC closure technique and hydrocephalus rate, 2) hydrocephalus treatment modality, and 3) timing of hydrocephalus treatment.RESULTSA weighted total of 10,627 inpatient MMC repairs were documented in the NIS, 8233 (77.5%) of which had documented hydrocephalus: 5876 (71.4%) were treated with VPS, 331 (4.0%) were treated with ETV, and 2026 (24.6%) remained untreated on initial inpatient stay. Treatment modality rates were stable over time; however, hydrocephalic patients in later years were less likely to receive hydrocephalus treatment during initial inpatient stay (odds ratio [OR] 0.974, p = 0.0331). The inpatient hydrocephalus treatment failure rate was higher for patients who received ETV treatment (17.5% ETV failure rate vs 7.9% VPS failure rate; p = 0.0028). Delayed hydrocephalus treatment was more prevalent in the later time period (77.9% vs 69.5%, p = 0.0287). Predictors of inpatient shunt failure included length of stay, shunt infection, jaundice, and delayed treatment. A longer time between operations increased the likelihood of inpatient shunt failure (OR 1.10, p < 0.0001). However, a meta-analysis of hydrocephalus timing studies revealed no difference between ST and DT with respect to shunt failure or infection rates.CONCLUSIONSFrom 1998 to 2014, hydrocephalus treatment has become more delayed and the number of hydrocephalic MMC patients not treated on initial inpatient stay has increased. Meta-analysis demonstrated that shunt malfunction and infection rates do not differ between delayed and simultaneous hydrocephalus treatment.
Design of Wideband Waveguide-to-Microstrip Transition for 60 GHz Frequency Band
Authors: Mozharovskiy Andrei V. , Artemenko Aleksey A. , Maslennikov Roman O. , Vendik Irina B. 
Published: October 2019

Introduction. The frequency band around 60 GHz is one of the most promising to realize new generation communication systems with high data rate due to the utilization of a wide operational frequency band that significantly exceeds traditional frequency bands below 6 GHz. High interest in the development of 60 GHz communication systems is related to the recent evolution of MMIC technology that allows creating effective components for this band and the variety of planar devices. Both are typically realized on printed circuit boards and have interfaces that are based on microstrip lines. The wideband waveguide-to-microstrip transition is required to test various active and passive planar devices with microstrip interfaces in order to provide an effective interconnection between the standard waveguide interface of measurement equipment and planar microstrip structures.Objective. The paper deals with the design of planar wideband waveguide-to-microstrip transition with low insertion loss level in the 60 GHz frequency band.Materials and methods. The main objective is achieved by analyzing of discontinuities in waveguide-tomicrostrip transition structure and their influence on transition characteristics. The transition characteristics are analyzed using full-wave electromagnetic simulation and confirmed with experimental investigation of designed wideband waveguide-to-microstrip transition samples.Results. The designed transition is based on an electromagnetic coupling through a slot aperture in a microstrip line ground plane. The transition is performed without using blind vias in its structure that provides low production cost and al-lows integrating the WR-15 rectangular waveguide in a simple manner without any modifications in the waveguide structure. Results of the electromagnetic simulation are confirmed with experimental investigations of the fabricated waveguide-to-microstrip transition samples. The designed transition provides operation in the nominal bandwidth of the WR-15 waveguide, namely, 50…75 GHz with the insertion loss level of 2 dB and with less than 0.8 dB insertion loss level at the 60 GHz frequency.Conclusion. The designed waveguide-to-microstrip transition can be considered as an effective solution for interconnection between various waveguide and microstrip millimeter-wave devices due to its wideband performance, low insertion loss level, simple integration and robustness to the manufacturing tolerances structure.
Retrospective Review of Perfect Ternary Sequences and Their Generators
Authors: Krengel Evgeny I. 
Published: October 2019

Introduction. Perfect polyphase unimodular sequences, i. e. sequences with ideal periodic autocorrelation and single amplitude of symbols are widely used in modern radio communications and radar. A special place among them is occupied by perfect ternary sequences (PTSs) with elements {–1, 0, 1}. In fact, these are binary sequences with the alphabet {–1, 1}, but with zero symbols in some positions. It is known that PTSs are quite numerous and their length in comparison with perfect binary sequences is not limited from above. The charge for this is a peak factor greater than one, which causes energy losses in the receiver. A large number of research papers and books are devoted to the design of PTSs and the study of their properties. In particular, the handbook on sequence design by Fan and Darnell (1996) which provides an overview of the then known PTS families has become widely famous. However, over the past two decades, numerous new PTS families were discovered, some theorems on their existence were obtained, and connections were established between them and circulant weighing matrices. Therefore, there is a need for a new review of existing PTSs.Objective. The article is devoted to a retrospective review of existing PTSs and their generation devices.Materials and methods. Considered and analyzed domestic and foreign sources of information (books, journal papers, conference proceedings, patents).Results. Along with solving an informational bibliographic problem, the review shows the relationship between PTSs obtained at different times, their connection with circulant weighing matrices, and also describes the block diagrams of generators of some PTS families.Conclusion. A brief retrospective review of PTSs for their almost 60 years history is presented and the generators of some PTS families are considered. The results of the study are relevant for use in modern radio communications and radar systems and in particular, in CW and LPI radars.
Low Noise Programmable DC Amplifier with Remote Control
Authors: Ivanov Viktor E. , En Un Chye 
Published: October 2019

Introduction. In modern experimental technology, the direction associated with the development of information-measuring systems for recording, pre-processing and analyzing excess low-frequency noise (flicker noise) is well known. Currently, such measuring systems are mainly presented in the form of particular solutions, due to the large variety of research goals and objectives. At the same time, for automation of the experiment, multichannel measuring complexes with the possibility of flexible reconfiguration of the measuring channel according to the task are highly demanded. It is obvious that any distributed measuring channel is represented as a multi-stage scheme with given functions and parameters of each stage, which makes it difficult for the measuring system to adapt to different conditions and tasks of the experiment. The logical solution to this problem is a deep unification of all components of the measuring channel while maintaining good performance characteristics. One of the main problems with this is the evaluation of the intrinsic noise of electronic elements, which provide for changing the parameters of the amplifier.Objective. Experimental analysis of the intrinsic noise of electronic potentiometers, development of the concept and study of parameters of a low-noise DC amplifier with a high degree of unification, the possibility of external electronic control and the use of built-in characteristics correction algorithms.Materials and methods. To achieve the set result, a method for measuring the noise of electronic potentiometers was proposed and experimental studies were carried out.Results. According to the calculation results and experimental studies, it was shown that the specific noise of the electronic potentiometers corresponds to the noise of the metal-film resistors, which makes it possible to use them in low-noise amplification stages. The developed circuit solutions allow the implementation of a unified amplifying module with cascading to build low-noise measuring DC paths based on electronic potentiometers. External and internal digital control allows you to significantly improve the performance of the measuring path as a whole and allows you to adapt it to a wide range of tasks.Conclusion. As part of the study, a method was proposed for measuring the noise of electronic potentiometers, analytical and experimental studies were carried out, and a prototype of a low-noise amplifier was developed and investigated.
The Accuracy of Postpartum Blood Loss Estimation Using Plastic Collector Bag and Visual Estimation at Ramathibodi Hospital
Authors: Phaikaew Sirikanya , Ploungbunmee Sophaphan 
Published: October 2019

Background: Postpartum hemorrhage is a common cause of maternal death. Accurate estimation of postpartum blood loss is important to help parturients before crisis.
Objectives: To compare estimation of postpartum blood loss and proportion of postpartum hemorrhage between plastic collector bag and visual estimation.
Methods: This study is quasi-experimental design. Participants were 20 singleton parturients, gestational age at 34 - 40 weeks and without complications during pregnancy who delivered at Ramathibodi Hospital. T test was used for comparing the difference of blood loss with Fisher exact test employed for calculating the proportion of parturients postpartum hemorrhage. The Bland-Altman method was used to determine the level of agreement between methods.
Results: Postpartum blood loss collected via a plastic collector bag was significantly more than the visual estimation (P < .05). The mean difference of postpartum blood loss between 2 methods was 112.25 with 95% confidence limits of agreement between -212.15 and 436.66.
Conclusions: The plastic collector bag was more accurate in blood loss assessment than visual estimation. It can provide early care and prevention of complications that may occur with parturients.
Predictors of Initial Acceptance of Continuous Positive Airway Pressure in Obstructive Sleep Apnea Patients After Intensive Educational-Behavioral Program
Authors: Pengjam Janejira , Tantrakul Visasiri , Suwansathit Worakot 
Published: October 2019

Background: Continuous positive airway pressure (CPAP) device therapy is the standard treatment for obstructive sleep apnea (OSA) to date. However, acceptance and adherence rate remained low. Recent study showed that educational and behavioral modification program can improve the efficacy of CPAP use.
Objectives: To study rate of acceptance and its predictor factors of in patients with obstructive sleep apnea after participant in group modification behavior program.
Methods: This prospective cohort study was conducted in 247 obstructive sleep apnea patients at Ramathibodi Sleep Disorders Center, Ramathibodi Hospital from February to July 2015. There were indicated for CPAP. Participating states spanning included awareness, motivating, demonstration, and trials of CPAP evaluated every week for 3 weeks.
Results: Of 247 obstructive sleep apnea patients (62% male) were included with apnea-hypopnea index (AIH) (median [interquartile range], 41.5 [46.4]), and acceptance CPAP (85%). Factors influencing decision to use CPAP were severity of diseases (OR, 4.1; 95% CI, 1.2 - 13.9), triple trials (OR, 8.6; 95% CI, 2.1 - 35.4), and government reimbursement (OR, 8.1; 95% CI, 2.9 - 22.4).
Conclusions: After educational and behavioral intervention, the CPAP acceptance rate were high among Thai patients with obstructive sleep apnea. This program should be encouraged for more widespread clinical practice.
Relationship Between School Head Supervision and Organizational Climate with Teacher Performance in Almadrasah Aliyah, Kualuh Leidong District
Authors: Hidayah Hikmatul , Herviana Hera 
Published: October 2019

Madrasah quality is one of the most urgent in the world of education. in this study will attempt to reveal the relationship between madrasah head leadership and teacher work participation with madrasah quality. The research method uses correlational research, namely research that seeks to see the relationship between variables. The study population was all MTs teachers in Labuhan Batu District totaling 83 people. The sample was taken using proportional random sampling technique, so that the sample was taken as many as 75 people. The instrument used was a questionnaire, data analysis techniques were carried out with data descriptions, and hypothesis testing using simple regression and multiple regression. The following results were obtained: 1) There was a positive and significant relationship between the leadership of the madrasah head (X1) and the madrasah quality (Y) in the Madrasah Tsanawiyah Labuhan Batu with moderate correlation levels with the correlation coefficient value of 0.092. While the value of the strength of the relationship that occurs between the two variables is 0.092 or 8%. 2) There is a positive and significant relationship between teacher work participation (X2) and the quality of madrasah (Y) in Laban Batu Tsanawiyah Madrasah with a moderate level of correlation with the correlation coefficient value of 0.390. While the value of the strength of the relationship that occurs between the two variables is 0.390 or 15.2%. 3) There is a positive and significant relationship between madrasah head leadership (X1) and teacher work participation (X2) with madrasah quality (Y) in Laban Batu Tsanawiyah Madrasah with moderate correlation levels with a correlation coefficient value of 0.512. While the value of the strength of the relationship that occurs between the two variables is 0.512 or 26.2%.
Movilidades e hibridaciones rural-ubanas. Procesos identitarios y flujos de población en las dinámicas de ocupación del territorio
Authors: Sanz Tolosana Elvira , Martínez-Lorea Ion 
Published: October 2019

La globalización de las movilidades, la deslocalización productiva y residencial, la creciente separación entre lugar de trabajo y residencia, la progresiva integración en la economía internacional (industria agroalimentaria, turismo global o los flujos migratorios) y la movilidad cotidiana han propiciado la configuración de territorios híbridos en los que la articulación entre lo rural y lo urbano emerge como un factor clave de transformación social.
La identidad se considera una condición necesaria para la puesta en valor de los territorios y los procesos de desarrollo. Actualmente, muchas estrategias de desarrollo rural hacen hincapié en la importancia de los procesos de identidad territorial como catalizadores dichas iniciativas. El objetivo de este trabajo es analizar la conformación de figuras híbridas rural-urbanas en relación a la identidad territorial. Se investiga la relevancia que cobra para la sostenibilidad social y económica de los territorios de despoblación, el estrecho vínculo que se produce entre los diferentes tipos de movilidad (desplazamientos cotidianos, estrategias biresidenciales, turismo, etc.) y las experiencias festivas. Las áreas de montaña son un espacio privilegiado para la celebración de la identidad y la reconstrucción de la vida comunitaria y por tanto un espacio paradigmático para el estudio de este proceso. En este sentido, se ha escogido los valles del Pirineo navarro que presentan un fuerte peso identitario y simbólico en los imaginarios sociales de la región.
Notas sobre Campo Adentro, a los 10 años de su inicio
Authors: García Dory Fernando 
Published: October 2019

Hablar de un proyecto como Campo Adentro puede ser una vía para examinar posibles estrategias culturales y artísticas en relación a la cuestión rural de hoy.
A partir de ahí podemos ver las condiciones en las que surge un nuevo campo de práctica de arte en el medio rural, sus referentes históricos y objetivos, así como ejemplos concretos de práctica situada.