bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research on the impact factors of GRACE precise orbit determination by dynamic method
Authors: Guo Nan-nan , Zhou Xu-hua , Li Kai , Wu Bin 
Published: June 2018

Abstract
With the successful use of GPS-only-based POD (precise orbit determination), more and more satellites carry onboard GPS receivers to support their orbit accuracy requirements. It provides continuous GPS observations in high precision, and becomes an indispensable way to obtain the orbit of LEO satellites. Precise orbit determination of LEO satellites plays an important role for the application of LEO satellites. Numerous factors should be considered in the POD processing. In this paper, several factors that impact precise orbit determination are analyzed, namely the satellite altitude, the time-variable earth’s gravity field, the GPS satellite clock error and accelerometer observation. The GRACE satellites provide ideal platform to study the performance of factors for precise orbit determination using zero-difference GPS data. These factors are quantitatively analyzed on affecting the accuracy of dynamic orbit using GRACE observations from 2005 to 2011 by SHORDE software. The study indicates that: (1) with the altitude of the GRACE satellite is lowered from 480 km to 460 km in seven years, the 3D (three-dimension) position accuracy of GRACE satellite orbit is about 3∼4 cm based on long spans data; (2) the accelerometer data improves the 3D position accuracy of GRACE in about 1 cm; (3) the accuracy of zero-difference dynamic orbit is about 6 cm with the GPS satellite clock error products in 5 min sampling interval and can be raised to 4 cm, if the GPS satellite clock error products with 30 s sampling interval can be adopted. (4) the time-variable part of earth gravity field model improves the 3D position accuracy of GRACE in about 0.5∼1.5 cm. Based on this study, we quantitatively analyze the factors that affect precise orbit determination of LEO satellites. This study plays an important role to improve the accuracy of LEO satellites orbit determination.
Subgroups generated by images of endomorphisms of Abelian groups and duality
Authors: Călugăreanu Grigore , Chekhlov Andrey R. , Krylov Piotr A. 
Published: June 2018

Abstract
A subgroup H of a group G is called endo-generated if it is generated by
endo-images, i.e. images of endomorphisms of G. In this paper we determine
the following classes of Abelian groups:
(a) the endo-groups, i.e. the groups all of whose subgroups are endo-generated;
(b) the endo-image simple groups, i.e. the groups such that no proper
subgroup is an endo-image;
(c) the pure-image simple, i.e. the groups such that no proper pure subgroup
is an endo-image;
(d) the groups all of whose endo-images are pure subgroups;
(e) the ker-gen groups, i.e. the groups all of whose kernels are endo-generated.
Some dual notions are also determined.
Can having a sibling with type 1 diabetes cause disordered eating behaviors?
Authors: Akgül Sinem , Alikaşifoğlu Ayfer , Özon Alev , Gönç Nazlı , Düzçeker Yasemin , Örs Sine , Derman Orhan , Kanbur Nuray 
Published: June 2018

Abstract

Background
Adolescents with type 1 diabetes mellitus (T1DM) are at an increased risk of eating disturbances. The aim of this study was to evaluate whether the risk of a disordered eating behavior (DEB) also applies to the well sibling sharing the same environment.

Methods
Well siblings were included if they were 10–18 years old, had a sibling with a T1DM diagnosis for at least 6 months and lived with the sibling during the illness. The control group was comprised of healthy participants recruited from the outpatient clinic with no family history of T1DM. Participants completed a four-part questionnaire concerning their eating behaviors that was developed by the study team. This survey aimed to evaluate the dietary habits and eating patterns. All participants completed the Eating Attitudes Test-26 (EAT-26) and a 24-h food dietary recall. Any participant with a high EAT-26 score or that seemed to be at risk according to the questionnaire was re-evaluated.

Results
Eight cases (33.3%) in the well sibling group had either a total and/or subgroup pathological score. Three of them were found to have DEB and one case was diagnosed with anorexia nervosa (AN). In the control group, five cases (17.2%) had either a total and/or subgroup pathological score. Three of these cases were found to have DEB, no cases were diagnosed with an eating disorder. There were no statistically significant differences in the EAT-26 scores between the groups.

Conclusions
Although a direct relationship was not observed, the probability of having a pathologic EAT-26 score was higher in the group with a sibling with T1DM.
Association of anthropometric measures and cardio-metabolic risk factors in normal-weight children and adolescents: the CASPIAN-V study
Authors: Ahadi Zeinab , Bahreynian Maryam , Qorbani Mostafa , Heshmat Ramin , Motlagh Mohammad Esmaeil , Shafiee Gita , Gorabi Armita Mahdavi , Ziaodini Hasan , Taheri Majzoubeh , Aminaei Tahereh , Kelishadi Roya 
Published: June 2018

Abstract

Background:
The present study aims to explore the association of anthropometric indices and cardio-metabolic risk factors in normal-weight children and adolescents.

Methods:
This cross-sectional nationwide study was conducted in 2015 among 4200 Iranian school students aged 7–18 years. They were selected using a multi-stage cluster random sampling method. Anthropometric indices and cardio-metabolic risk factors including fasting blood glucose (FBG), lipid profile and blood pressure (BP) were measured using standard protocols.

Results:
The response rate was 91.5%. Systolic blood pressure (SBP) and diastolic blood pressure (DBP) had a significant positive correlation with waist circumference (WC), hip circumference (HC) and body mass index (BMI) in boys and girls. HDL-C had a significant inverse correlation with WC, HC and BMI in boys. For each unit increase in WC, HC and BMI, the risk of elevated DBP significantly increased by 2%, 1% and 11%, respectively. Likewise, for each unit increase in WC, HC and BMI, the risk of elevated BP significantly raised by 2%, 1% and 10%, respectively. For each unit increase in WC, the risk of metabolic syndrome increased by 7%.

Conclusions:
Anthropometric indices are considered an easy, non-invasive tool for the prediction of cardio-metabolic risk factors in normal-weight children and adolescents.
Changes in livestock farming systems in the Moroccan Atlas Mountains
Authors: El Aich Ahmed 
Published: June 2018

Abstract
This paper aims to characterize small ruminant farming systems in the Moroccan mountain regions and to assess undergoing socio-economic and ecological changes. Livestock farming systems in these regions are extensive with large flock sizes, especially sheep and goats raised mainly for meat production. Sheep producers utilized the inherent genetic diversity of their stock and developed adaptations to cope with seasonal availability of the mountain pastures and the need to diversify their own activities. Nowadays, farming systems in mountainous regions are undergoing socio-economic and ecological transformations that impact directly or indirectly on natural resources. Reduction and/or disappearance of herd transhumance, where flocks were moved seasonally from one climatic zone/vegetation type to another, was an important feature of the Middle Atlas sixty years ago Along with this reduced contribution from natural rangelands, other external resources and agricultural by-products (straw, stubble) are offered which make the system heavily dependent on agriculture. Intensification of feeding systems is associated with a choice for more productive but less hardy breeds from lowland areas. As a consequence of the reduction in mobility and the sedentarization of herds, there is an increase in the grazing pressure causing new and significant degradation of rangeland resources. Other profound institutional modifications concern the management and the utilization of the mountainous pasture. Indeed, the power of the group and the institutions for managing the resources is being replaced by the individual initiatives.
Relining of pipe systems: conditions, benefits and application through case-study
Authors: Vladimirov Victor , Simoner Thomas , Bica Ioan 
Published: June 2018

Abstract
Relining is one of the best alternatives available today for pipe system rehabilitation. This trenchless solution is particularly interesting for urban agglomerations, as a smaller diameter pipe is pushed or pulled through the old pipeline. Relining creates a leak-tight “pipe within a pipe” system, which is as good as new in both structural and hydraulic terms. Relining can be performed with both circular and special, non-circular (NC) profiles. The latter is especially advantageous for the rehabilitation of old sewers, many of which were constructed in a variety of ovoid-like shapes. This paper presents the typical steps that are performed for pipeline rehabilitation with non-circular profiles, as well as an applied case study (a project implemented in the city of Würzburg in Germany).
Reabilitation of a wastewater treatment plant – possible environment impact
Authors: Stănescu Mădălina , Buta Constantin , Mihai Geanina 
Published: June 2018

Abstract
Romania, has declared, by the Governmental Decision nr.352/2005, all its territory as a sensitive area. This implies that, for all urban agglomerations larger than 10.000 population equivalent waste water treatment plants (WWTP) with nutrient removal must be built or upgraded. This paper presents the results regarding the possible environmental impacts expected from the project for construction of waste water treatment plant in the City of Vaslui, with main focus on surface water. This research study includes assessment methodology, project description regarding the rehabilitation and extension of the Vaslui waste water treatment plant, data related to water resources, impact assessment on water and appropriate mitigation measures. The assessment of the impacts has been performed for the construction and operational phase of the wastewater treatment plant. The construction phase was subdivided into several phases, while in the operational phase the impacts are analyzed following the line for treatment of the wastewater and effluent production, the line for sludge production and drying process, sludge disposal in safety conditions considering the provisions of 86/278/EEC Directive and the line for biogas utilization.
Flash floods simulation in a small drainage basin using HEC-RAS hydraulic model
Authors: Buta Constantin , Mihai Geanina , Stănescu Mădălina 
Published: June 2018

Abstract
In recent years, climate conditions has caused extreme hydrological phenomena like flash floods that lead to significant material losses and impact on the environment in Dobrogea Region, Romania. In this context the needs for an integrated and sustainable approach to flash flood risk management even in small drainage basins are necessary, in order to reduce the the potential damages of flash floods in the future. In this study the hydraulic models Hec-Ras and HecGeo-Ras were used in order to simulate the behaviour of the environment at the pressure of the flashfloods in a small drainage basin. The results were validated using the measurements undertaken after the flash-flood event recorded in October, 13th, 2015 as well as the data provided by the Corbu gauging station along time.
Religion als Problem. Die religionskritische Aufgabe im interweltanschaulichen Religionsunterricht
Authors: Willems Joachim 
Published: June 2018

Zusammenfassung:
Religionskritik ist ein zentrales Thema des klassischen problemorientierten Religionsunterrichts. Im Vergleich zur Situation vor einem halben Jahrhundert haben sich die Rahmenbedingungen heute allerdings wesentlich verändert, da Religionskritik vorrangig als Islamkritik erscheint.
The Rock-Breaking Mechanism of Directional Fracture Blast Using an Irregular Shape Cartridge and Its Field Application
Authors: Wang Yanbing 
Published: June 2018

Abstract
The testing system of digital laser dynamic caustics was performed here to examine the super-dynamic fracture mechanics of directional blasting crack, which, using an irregular shape cartridge, revealed the rock breaking mechanism of directional fracture blast. The findings show that the blasting primary crack fracture features—the typical tensile break, the variation trend of the dynamic stress intensity factor (DSIF), crack propagation velocity, and crack length— were more or less the same, the primary crack fracture was finished during 60–200 μs, the limit DSIF scarcely exceeded 1.5 MN/m3/2, and the arrest toughness of the blasting fracture was about 0.3 MN/m3/2. The irregular shape cartridge showed significant detonation wave unloading effects and detonation gas jet effects in the accumulative direction or slotting direction; the “air wedge effect” of the high-pressure detonation gas jet acted as the main drive for further expansion of the compression radial crack in the accumulative direction (or slotting direction), which also held the propagation of the compression radial crack in the nonaccumulative or nonslotting direction). Additionally, the accumulative cartridge and slotted cartridge were applied to the construction field, and it was found that the directional fracture blast was enabled, the good blasting fracture surface was formed, and better economic benefits and less operation time could be achieved using these two cartridges.
A EXTENSÃO UNIVERSITÁRIA NA EXPERIÊNCIA DO CUIDADO NA ATENÇÃO A CRIANÇAS HOSPITALIZADAS
Authors: Luquete Camilla Fernandes Passos , Fugimoto Vitor Koichi Iwakura , Rodrigues Renan Ferrari , Prado Janaína Dal'laqua , Baldini Nathália Sobrinho , Cinti Mariana Fagundes , Forte Simone Camargo Dias , Papeti Marina Chiarato , Toledo Fernando Féssel , Jurdi Andrea Perosa Saigh 
Published: June 2018

A Política Nacional de Humanização visa a expressar os princípios do SUS, propiciando nas equipes, trocas solidárias e comprometidas com a dupla tarefa de produção de saúde e produção de cuidado. No PET Saúde da Criança compreende-se que o cuidado em saúde se faz por meio dos encontros que visam à conexão das pessoas, não pelas patologias ou diagnósticos, mas pela experimentação da arte, do trabalho e do lazer. Com a dimensão ética de prover cuidado a partir do encontro humano, desenvolvendo a capacidade de cuidar que está associada às capacidades de envolvimento com e de responsabilidade por, foram realizadas intervenções com crianças e acompanhantes. Nesse artigo, pretendeu-se discutir a natureza e a qualidade do cuidado a crianças hospitalizadas e seus acompanhantes a partir das experiências das atividades de extensão e como o cuidado tem ocorrido nesse ambiente nas ações de saúde. A estratégia metodológica das intervenções foi oferecer oficinas lúdicas na enfermaria pediátrica. O ambiente proposto nas oficinas lúdicas potencializou a importância do espaço compartilhado, e o papel do adulto foi de acolher as diferenças, estar junto quando o brincar não era possível e fornecer segurança suficiente para que o brincar criativo pudesse ser exercido pela criança. O cuidado que afirmamos se faz no campo da produção de saúde, provocando mudanças nas relações com o outro, possibilidades de deslocamentos, de transformações seja no estudante, seja na criança ou no seu acompanhante.
Reduction of arrhythmias in primary hyperparathyroidism, by parathyroidectomy, evaluated with 24-h ECG monitoring
Authors: Pepe Jessica , Cipriani Cristiana , Curione Mario , Biamonte Federica , Colangelo Luciano , Danese Vittoria , Cecchetti Veronica , Sonato Chiara , Ferrone Federica , Cilli Mirella , Minisola Salvatore 
Published: June 2018

ObjectiveHypercalcemia may induce arrhythmias. There are no data on the prevalence of arrhythmias in primary hyperparathyroidism (PHPT) in daily life. Aim of the study was to investigate both the prevalence of arrhythmias in patients with PHPT compared to controls and the impact of parathyroidectomy, evaluated by 24-h electrocardiogram (ECG) monitoring.DesignThis is a randomized study.MethodsTwenty-six postmenopausal women with PHPT and 26 controls were enrolled. PHPT patients were randomized to two groups: 13 underwent parathyroidectomy (Group A) and 13 were followed up conservatively (Group B). After 6 months, patients were studied again. Each patient underwent mineral metabolism biochemical evaluation, bone mineral density measurement, standard ECG and 24-h ECG monitoring.ResultsPHPT patients showed higher calcium and parathyroid hormone compared to controls and a higher prevalence of both supraventricular (SVBPs) and ventricular premature beats (VPBs) during 24-h ECG monitoring. Groups A and B showed no differences in mean baseline biochemical values and ECG parameters. Mean value of QTc in PHPT groups was in the normal range at baseline, but significantly shorter than controls. A negative correlation was found between QTc and ionized calcium levels (r = −0.48,P < 0.05). After parathyroidectomy, Group A had a significant reduction in SVPBs and VPBs compared to baseline and restored normal QTc. Group B showed no significant changes after a 6-month period.ConclusionsThe increased prevalence of SVPBs and VPBs is significantly reduced by parathyroidectomy, and it is mainly related to the short QTc caused by hypercalcemia.
Ensuring Timely Connection to Early Intervention for Young Children With Developmental Delays
Authors: Conroy Kathleen , Rea Corinna , Kovacikova Gabriella Ika , Sprecher Eli , Reisinger Ellen , Durant Hannah , Starmer Amy , Cox Joanne , Toomey Sara L. 
Published: June 2018

BACKGROUND AND OBJECTIVES:Timely provision of developmental services can improve outcomes for children 0 to 3 years old with developmental delays. Early Intervention (EI) provides free developmental services to children under age 3 years; however, data suggests that many children referred to EI never connect to the program. We sought to ensure that 70% of patients referred to EI from an academic primary care clinic serving a low-income population were evaluated within 120 days of referral.METHODS:Recognizing that our baseline system of EI referrals had multiple routes to referral without an ability to track referral outcome, we implemented a multifaceted referral process with (1) a centralized electronic referral system used by providers, (2) patient navigators responsible for processing all EI referrals submitted by providers, and (3) a tracking system postreferral to facilitate identification of patients failing to connect with EI.RESULTS:The percentage of patients evaluated by EI within 120 days increased from a baseline median of 50% to a median of 72% after implementation of the systems (N = 309). After implementation, the centralized referral system was used a median of 90% of the time. Tracking of referral outcomes revealed decreases in families refusing evaluations and improvements in exchange of information with EI.CONCLUSIONS:Rates of connection to EI improved substantially when referrals were centralized in the clinic and patient navigators were responsible for tracking referral outcomes. Knowledge of EI intake processes and relationships between the practice and the EI site are essential to ensure successful connections.
Проектний підхід до створення іміджу території
Authors: Zinchenko Olha 
Published: June 2018

Мета роботи – обґрунтувати вплив проектного підходу на створення позитивного іміджу регіону.
Результати дослідження. Висунуто гіпотезу про позитивний вплив проектного підходу на формування іміджу території. Доведено, що регіони, в яких спостерігається активне впровадження проектів розвитку території, є більш привабливими як для інвесторів, так і для туристів. Розроблено алгоритм створення іміджу території з позиції проектного підходу на основі моделі бізнес-інжинірингу, який передбачає діагностичний, проектний, контрольний етапи. Кожний етап розкрито в стадіях та конкретних роботах. Доведено необхідність застосування клієнтоорієнтованих технологій у розробці іміджу території: проект повинен спиратися на очікування населення, влади, інвесторів, гостей регіону від тих можливостей, що надає територія. Показано, як розкриваються функції менеджменту іміджу завдяки проектному підходу.
Практичне значення дослідження. Результати дослідження можуть бути цікавими для практиків державного менеджменту в Україні, оскільки комплексної концепції іміджмейкінгу територій не має жодний регіон цієї держави.
Оригінальність/цінність/наукова новизна дослідження. Вперше запропоновано адаптувати практику проектного підходу в розробці іміджу економічних регіонів України.
Перспективи подальших досліджень. У подальшому доцільно дослідити можливості управління проектними ризиками при створенні іміджу регіону, комунікативні технології взаємодії влади, бізнесу і населення для просування регіонального бренду, систематизувати світовий досвід регіональних проектів іміджмейкинга.
Тип статті – емпірична.
Gerontomotricidade e idoso praticante de atividades físicas: um estudo teórico
Authors: Miranda Vinícius Bittencourt 
Published: June 2018

Tem-se como proposta apresentar conceituações sobre o envelhecimento, enumerando aspectos decorrentes deste processo natural ao ser humano, tratando de questões neuromusculares, cardiorrespiratórias, da composição corporal, da endocrinologia e de fatores patológicos do envelhecimento inerentes à essas ocorrências,abordando a realização de atividades físicas durante a velhice, apontando as consequências dessas ao indivíduo idoso. A seguir, aborda-se a psicomotricidade e a gerontomotricidade, correlacionando essas informações com a realização de atividades físicas na concepção do ser idoso. As considerações finais unem essas perspectivas sob a ótica do autor, verificando a importância da realização das atividades psicomotoras na melhora da qualidade de vida do idoso, bem como elucidando a responsabilidade do profissional de Educação física que orienta esse programa de treinamento, criando um impacto social positivo na saúde física e mental de seus alunos, fundamental na terceira idade.
LİSANS ÖĞRENCİLERİNİN TÜREV TANIMIYLA İLGİLİ YORUMLARI VE TÜREVE YÜKLEDİKLERİ ANLAMLAR
Authors: DORUK Muhammet , DURAN Murat , KAPLAN Abdullah 
Published: June 2018

Bu çalışmanın amacı
ilköğretim matematik öğretmenliği bölümü öğrencilerinin türev tanımını
yorumlama becerilerini ve türev kavramına yönelik yükledikleri anlamları ortaya
çıkarmaktır. Nitel araştırma desenlerinden durum çalışmasına göre planlanan bu
çalışma, 2014-2015 öğretim yılı bahar döneminin başında gerçekleştirilmiştir.
Çalışmanın katılımcıları, Doğu Anadolu Bölgesi’ndeki bir devlet üniversitesinin
ilköğretim matematik öğretmenliği bölümünde öğrenim gören ikinci (n=31) ve
dördüncü (n=29) sınıf öğrencileridir (n=60). Çalışmanın veri toplama aracı,
araştırmacılar tarafından geliştirilen Türev Anlayış Formudur (TAF). Çalışma
sonucunda öğrencilerin türevin formel tanımını yorumlamakta güçlük yaşadıkları
tespit edilmiştir. Bir noktada türevli fonksiyon kavramına yönelik çoğunlukla
ilgili fonksiyonun o noktada tanımlı, limitli, sürekli olması ve fonksiyon
kuralının türevinin işlemsel olarak alınabilmesi anlamlarını yükledikleri
ortaya çıkmıştır.&nbsp;