bluuebunny/crossref_metadata_2025_split huggingface dataset:
THE INFLUENCE OF USING SMARTPHONE TO THE DEVELOPMENT OF PRE SCHOOL AGED CHILDREN
Authors: Khodijah Upus Piatun , Mega Mega , Ulfah Erliana 
Published: September 2020

One of the development information technology and communication is the development of telecomunication technology of Smartphone. The smartphone has the ability of functions and uses similarly like computer. The impacts of using Smartphone to childhood cause worriness because they are unstable enough, they have very high curiousity and influence to the effect of increasing their consumtive character. The aims of this research were to analyze the influence of using smartphone to the development of pre school aged children at Kindergarten School and Early Childhood Education of Permata Hati Cijelag, Tomo Village, Subdistrict Tomo, Sumedang Regency. This research used quantitative method. Sampling taking in this research used nonprobability sampling by using total sampling, the respondents in this research were pre school aged children in Kindergarten School and Early Childhood Education Permata Hati Cijelag, Tomo Village, Subdistrict Tomo, Sumedang Regency in 2019. The research subjects were pre school aged children in Kindergarten School and Early Childhood Education Permata Hati Cijelag, Tomo Village, Subdistrict Tomo, Sumedang Regency as many as 30 children. Statististicstesting before data analysis gained made a normality test by Saphiro Wilk, then data distributed normally thus the next test did independent t test with significance p<0,05. The research result showed that there are influences of using Smartphone to the development of pre school aged children with significant score (r) = 0,02 < 0,05. The research result showed that there are influences of using Smartphone to the development of pre school aged children.
EPIDEMIOLOGIA: CORONAVÍRUS (COVID-19) E RECOMENDAÇÕES DA PRÁTICA DE ATIVIDADE FÍSICA E EXERCÍCIO FÍSICO
Authors: Hartmann Cassio , César Dias Lopes Gabriel , Da Silva Ferreira Vieira Fábio , V Samuel Bensson 
Published: September 2020

O novo Coronavírus foi nomeado como SARS-CoV-2. que produz a doença classificada como COVID-19, sendo agente causador de ma série de casos de pneumonia em todos os cinco continentes, tornando-se uma pandemia mundial e a mesma, iniciou-se na idade de Wuhan (China). O presente estudo teve como objetivo, fazer saber, sobre o conhecimento da epidemiologia e etiologia do Coronavírus (COVID-19), como ocorre a infecção, seus sinais, sintomas, diagnóstico e as recomendações para a prática do exercício e a atividade física. Essa pesquisa é do tipo documental. Seguir as orientações da Organização Mundial de Saúde (OMS) e dos emais órgãos e secretárias de saúde significa proteger-se e não ser infectado pelo Coronavírus e pode-se concluir, que o Governo ederal, através do Ministério da Saúde, vem agregar o profissional de Educação Física, em equipe multidisciplinar do Sistema Único e Saúde - SUS. Disposto sobre a Ação Estratégica “O Brasil Conta Comigo – Profissionais da Saúde”, voltado para à capacitação e ao adastramento de profissionais da área de saúde, sendo uma das áreas os professores de Educação Física do território nacional e stando os mesmos com o registro no Conselho Regional de Educação Física - CREF, para o enfrentamento à pandemia do Coronavírus (COVID-19), sendo de responsabilidade do Conselho Federal de Educação Física – CONFEF, confirmar o profissionais abilitados, junto ao Ministério da Saúde.
Standardised spider (Arachnida, Araneae) inventory of Kilpisjärvi, Finland
Authors: Kiljunen Niina , Pajunen Timo , Fukushima Caroline , Soukainen Arttu , Kuurne Jaakko , Korhonen Tuuli , Saarinen Joni , Falck Ilari , Laine Erkka , Mammola Stefano , Urbano Fernando , Macías-Hernández Nuria , Cardoso Pedro 
Published: September 2020

A spider taxonomy and ecology field course was organised in Kilpisjärvi Biological Station, northern Finland, in July 2019. During the course, four 50 × 50 m plots in mountain birch forest habitat were sampled following a standardised protocol. In addition to teaching and learning about spider identification, behaviour, ecology and sampling, the main aim of the course was to collect comparable data from the Kilpisjärvi area as part of a global project, with the purpose of uncovering global spider diversity patterns.
A total of 2613 spiders were collected, of which 892 (34%) were adults. Due to uncertainty of juvenile identification, only adults are included in the data presented in this paper. The observed adult spiders belong to 51 species, 40 genera and 11 families, of which the Linyphiidae were the most rich and abundant with 28 (55%) species and 461 (52%) individuals. Lycosidae had six species and 286 individuals, Gnaphosidae five species and 19 individuals, Thomisidae four species and 24 individuals, Theridiidae two species and 23 individuals. All other six families had one species and less than 40 individuals. The most abundant species were the linyphiid Agnyphantes expunctus (204) and the lycosids Pardosa eiseni (164) and Pardosa hyperborea (107).
L’imagination de la fable. Les Fables choisies de La Fontaine mises en vignettes par François Chauveau
Authors: Escola Marc 
Published: September 2020

Chacune des vignettes signées par Fr. Chauveau pour l’édition originale des Fables de La Fontaine ne témoigne pas seulement d’une lecture particulièrement attentive de l’apologue qu’elle illustre : il faut reconnaître à l’illustrateur une audace dans l’invention de détails logiquement déduits de la lettre du texte qui n’a rien à envier à la liberté dont témoigne La Fontaine à l’égard de ses devanciers. On peut le dire autrement : Chauveau a su regarder les fables de La Fontaine de l’œil dont celui-ci lisait les apologues ésopiques, bien décidé à les affabuler autrement pour y révéler tel ou tel motif resté inaperçu et élaborer par là quelque signification inattendue. Fables de La Fontaine mises en vignettes par François Chauveau donc, au sein du recueil des Fables d’Ésope mises en vers par M. de La Fontaine .
La coproduction de la publicité foncière en ligne par l’État et le notariat
Authors: Dauchez Corine Delphine 
Published: September 2020

La publicité foncière en ligne est le fruit d’un partenariat noué par l’État avec le notariat. Les notaires, représentés par le Conseil supérieur du notariat, se sont investis dès l’origine dans la construction technique de la publicité foncière en ligne aux côtés de l’État dont ils servent, aujourd’hui comme hier, les objectifs stratégiques. Ils participent au mouvement de transformation de l’État, dont le numérique est un moteur, que l’on considère la période où l’État s’est mué en stratège ou sa phase actuelle d’évolution en plateforme. Ce constat conduit à appeler à davantage de cohérence des politiques publiques à l’égard de la profession notariale, « malmenée » depuis la loi du 6 août 2015 pour la croissance, l’activité et l’égalité des chances économiques, dite « loi croissance ».
Un concept sur la toile : le « je » et le « nous » des mobilisations afroféministes sur YouTube
Authors: Da Silva Jaércio 
Published: September 2020

Cet article porte sur la manière dont l’intersectionnalité quitte la sphère académique et prend forme dans les espaces numériques. Il s’agit plus particulièrement de comprendre comment les différents formats d’expression personnelle peuvent créer d’autres formes de mobilisation autour de ce concept. Pour aborder le sujet, nous présentons une analyse à partir de six afroféministes qui sont sur YouTube. Nous commençons par situer historiquement la prise de parole des femmes noires et leurs revendications en France, pour ensuite mettre en évidence trois caractéristiques du corpus étudié : une mobilisation militante qui part d’une motivation personnelle, un « nous » formé par le partage d’expériences communes et la communauté d’action qui se mobilise en opposition à un « ils » supposé réel.
Utility of late pulmonary artery banding in single-ventricle physiology
Authors: Mukherji Aritra , Ghosh Sanjiban , Pathak Nihar , Das Jayita Nandi , Dutta Nilanjan , Das Debasis , Chattopadhyay Amitabha 
Published: September 2020

Background:
The standard first stage palliation for univentricular heart with unrestricted pulmonary blood flow (PBF) is surgical pulmonary artery (PA) banding for which the ideal age is within the first 8 weeks of life. This study aimed to look for the utility of PA band done beyond 3 months of age for patients presenting beyond the stipulated period.

Materials and Methods:
This is a retrospective analysis of the outcome of twenty patients with single ventricle (SV) physiology with unrestricted PBF who presented late and were selected on the basis of clinical, radiological, and echocardiographic parameters for PA banding.

Results:
The median age of the patients was 5.5 months (3.5–96 months), and the median body weight was 4.7 kg (3.2–22.0 kg). The patients were divided into three groups as follows: ten patients between 3 and 6 months of age (Group A), seven patients between 6 months to 1 year of age (Group B), and three patients > 1 year of age with additional features of pulmonary venous hypertension (Group C). The mean reduction of PA pressures following PA band was 60.9%, 48.8%, and 58.3% and the mean fall in oxygen saturation was 10.4%, 8.0%, and 6.6% in the three groups, respectively. The postoperative mortality rate was 10%. The mean follow up duration was 13.5 months (7–23 months). There was a statistically significant improvement in weight for age Z scores following PA band (P = 0.0001). On follow up cardiac catheterization, the mean PA pressures were 16.6 (±3.6), 22.7 (±5.7), and 33.3 (±12.4) mmHg, respectively, in the three groups, and the mean pulmonary vascular resistance index was 1.86 (±0.5), 2.45 (±0.7), and 3.5 (±1.6) WU.m2, respectively. Subsequently, seven patients in Group A, three patients in Group B, and one patient from Group C underwent successful bidirectional Glenn (BDG) surgery.

Conclusions:
Late PA band in selected patients with SV physiology can have definite benefit in terms of correction of heart failure symptoms and subsequent conversion to BDG and can potentially change the natural history of disease both in terms of survival and quality of life.
Native Umbilical Defect for Laparoscopic Entry
Authors: Hegazy Tarek Osama , Ali Mohamed Hassan , Mohsen Ahmed Amr , Azhary Mahmoud , Dayem Ahmad Yahia Abdel 
Published: September 2020

Background: The presence of defects in native umbilical in adults and its use as laparoscopic first entry site is poorly documented. It would likely be a safer method than the Veress needle and direct trocar insertion. This work aimed to report the prevalence and size of native umbilical defects, and their relationship with gender, age and body mass index.
Methods: In 160 consecutive laparoscopic operations, a trans-umbilical incision was made and a defect at its base was looked for. When found, the defect was measured and used as the first port entry site. Relationships of presence of native defects and their sizes in relation to gender, age and BMI were analyzed.
Results: The prevalence of a native defect in this series was 90%. Its presence had no relation with gender, age or BMI. Its size, however, positively correlated with age and BMI. No complications were related to the defect’s use for first laparoscopic entry site.
Conclusion: A native umbilical defect is present in 90% of adults. Whenever present, it is recommended for use as the first port entry site by an open technique. This method is simple and safe and avoids unnecessarily inducing another defect.
Keywords: Laparoscopy, Open technique, Access, Native defect, Umbilical defect
Atraumatic Ruptured Giant Renal Tumor
Authors: Ayane Gezahen Negusse , Kadimo Khutsafalo 
Published: September 2020

Massive hemoperitoneum due to spontaneous rupture of renal cell carcinoma is a rare presentation during emergency laparotomy. A 60-year-old female patient presented with severe abdominal pain, nausea, vomiting and abdominal distension. A massive hemoperitoneum secondary to ruptured left kidney tumor was found during laparotomy. Histology confirmed a papillary renal cell carcinoma. Ruptured renal cell carcinoma can be a cause of bleeding into the retroperitoneum space. Emergency sonography and laparotomy are advocated for its management.
Keywords: Renal cell carcinoma, Rupture, Complex mass, Nephrectomy, Papillary
Investigation of injection molding process parameters characteristics using RSM approach
Authors: Goyal Ashish , Pathak Vimal Kumar , Ogra Siddharth , Pandey Anand 
Published: September 2020

The present study analyzes the important characteristics of plastic injection molding machining process. The polypropylene (PP) material has used as a specimen and effect of melt temperature, packing pressure and injection pressure has been investigated on the tensile modulus and elongation. Total 20 experiments have been performed to analyses the results. Response surface methodology (RSM) was adopted for optimization of injection molding process parameters. The experiments were conducted by using central composite design. The analysis of variance (ANOVA) techniques was used for selection of significant and non-significant parameters. The experimental results show that the RSM influence elongation by 87.04%, 11.52%, 1.43% and tensile modulus by 85.35%, 11.4%, 3.25%.
Keywords: Injection molding; polypropylene; tensile modulus; elongation
Design and implementation of multiple output forward converter with Mag-amp and LDO as post regulators for space application
Authors: Patil Soumya , Geetha R.S. , Santosh B.L. , Singh Bhoopendra Kumar , Chippalkatti Vinod 
Published: September 2020

Linear power supplies are commonly used power supplies for many applications. They have some drawbacks such as low efficiency, difficulty in thermal management and also in regulation of the output voltage. Some of these drawbacks can be overcome by Switch Mode Power Supplies (SMPS). One of the best-suited applications of SMPS is for space applications that require power supplies which are lighter, smaller, more efficient and highly reliable. Multiple-output DC-DC converters are an important topology of SMPS that can be used for space applications. But, in multiple output converters usually, only the master output is regulated and the other outputs are left unregulated and this can result in cross-regulation. In this paper, post regulators such as Magnetic amplifiers (Mag-amp) and Low DropOut regulator (LDO) are proposed to regulate each output and also to improve load regulation. In addition to this, the input voltage feed-forward control technique is proposed to control the duty cycle of the switch, which is dynamically faster and provides better line regulation when compared to the voltage feedback controller. Besides, over current protection circuit for the converter is discussed in detail.
Keywords: Cross regulation effect, Mag-amp and LDO, multiple output forward converter, output over current protection, voltage feed forward control.
Analysis and implementation of electricity generation of 1000VA using wind turbine
Authors: Okandeji A.A. , Olajide M.B. , Jagun Z.O. , Kuponiyi D.S. , Aderanti T.A. 
Published: September 2020

The project involved the design and construction of a three-blade wind turbine, selection of generator by consideration of the available wind speed and the maximum generated voltage per revolution, and assembly of the pulse width modulated inverter with microontroller based status display and low battery shutdown system. On completion of the work, tests were conducted and the result shows that the design work was very good, the output of the generator was good enough to charge the batteries and the inverter performed an excellent task of converting the direct current (DC) voltage available in the battery to alternating current (AC) at 230V 50Hz 20”. Furthermore, results from the discharge characteristics of the battery shows that as the battery is being used up, the output voltage remains constant.
Keywords: wind, blade, turbine, magnetic field, battery, oscillator, inverter, controller
Investigations of the structural characteristics of concrete produced from recycled aggregates at varying water/cement ratios
Authors: Otunyo A.W. , Jephter B.G. 
Published: September 2020

The paper tried to investigate the structural characteristics of concrete produced by partially replacing natural aggregates with recycled aggregates at varying water/cement ratios. The study is basically a laboratory experimental study. Water/cement ratio component of the concrete were varied at 0.40, 0.45, 0.50, 0.55, 0.60; while the natural aggregate was partially replaced with RCA of 0%, 15%, 30%, 45%, 60%, 75% and 90% for concrete productions for 7, 14 and 28 days structural characteristics. The densities, water absorption capacity and Compressive Strength of these concretes were determined. The results were presented in graphs and Tables. Results of the study indicate an increased compressive strength at low percentage of RCA and water /cement ratio values. There is a marginal difference between compressive strength of normal concrete and concrete produced by partial RCA of 15% replacement at 0.4 w/c ratio.
Keywords: recycled concrete aggregate, natural aggregate, compressive strength, water/ cement ratio and natural aggregate concrete.
Assessment of infrastructure maintenance practices of three airports in southern Nigeria
Authors: Okafor C.C. , Ezeoyili M.N. 
Published: September 2020

This research examined the maintenance plans and strategies used by three airports in Nigeria to ascertain how they maintain existing infrastructure for full assets utilization and safer operational capacities. Interviews and questionnaires were employed to get concise data from all the areas and infrastructure available at Akanu Ibiam International Airport, Port Harcourt International Airport and Margaret Ekpo International Airport. Descriptive statistics and ordinal logistic regression were used in analysis and report. While Akanu Ibiam International Airport employs preventive maintenance practices on most of their facilities, Port Harcourt International Airport and Margaret Ekpo International Airport adopt corrective maintenance practices. All the airports investigated suffer poor operational efficiency, dilapidating infrastructure and facilities, and lack maintenance actions. The maintenance schedule available at Akanu Ibiam International airport can serve as a template at Port Harcourt International Airport and Margaret Ekpo International Airport. This maintenance plan must be implemented in order to achieve improvement in operational capacities.
Keywords: Infrastructure, maintenance practices; airports; challenges; Akanu Ibiam; Port Harcourt; Margaret Ekpo
Exhaust emission characteristics of a gardener compression ignition engine fuelled with rapeseed methyl ester and fossil diesel
Authors: Dandajeh H.A. , Sanusi Y.S. , Ahmadu T.O. 
Published: September 2020

This paper presents an experimental investigation into the exhaust emissions characteristics of a gardener Compression Ignition (CI) Engine fuelled with rapeseed methyl Esther (RME) and fossil diesel under lean equivalence ratios (0.2≤ φ ≤0.8). The experiments were carried out at engine speeds of 750 and 1250 rpm under five different loads. The experimental results showed that NOx and CO2 emissions increased while emissions of HC, O2 and CO decreased with increasing equivalence ratio, exhaust temperature, brake mean effective pressure and specific fuel consumption. All exhaust emissions were found to decrease with increasing engine speed from 750 to 1250 rpm. There was reduction in exhaust emissions of RME over fossil diesel by 0.06% for O2, 84% for CO and 4.7% for CO2 at 750rpm. At higher speed of 1250rpm however, RME was observed having higher NOx and CO2 but relatively lower O2 and CO than the fossil diesel.
Keywords— Exhaust Emission, Compression ignition engine, rapeseed methyl Esther, engine speed, fossil diesel
A new test analysis procedure for pressure drawdown test of a horizontal well in an infinite-acting reservoir
Authors: Idudje E.H. , Adewole E.S. 
Published: September 2020

This paper develops a new well test analysis procedure of a horizontal well in an infinite-acting reservoir. Hitherto, horizontal well pressure drawdown test analysis during infinite-acting flow was accomplished based on a straight line method obtained from a plot of flowing wellbore pressure versus log of flow time. In that procedure, only limited system characterization was possible. Furthermore, the rigorous type curve matching was resorted to when a straight line did not appear. In the method developed here, a plot of flowing wellbore pressures, pwf, against dimensionless wellbore pressures, pD, is made for analysis. Results show that a straight line relationship exists between the two plotted parameters on a linear paper. The straight line slope across the middle time region can be taken to perform test analysis. From the plot, reservoir pressure, near wellbore permeability, reservoir capacity, fluid mobility and transmissibility can be calculated. Mathematical procedure leading to this method of analysis is based on selection of relevant source and Green’s functions for a horizontal well during infinite-acting flow and purely as a line source. A case pressure test selected for analysis using the method developed here yielded very close reservoir character compared to the reservoir being characterized
Keywords: Dimensionless pressure, dimensionless derivatives, infinite-acting, horizontal well, early radial flow
Creep and morphological evaluation of polypropylene waste modified asphalt for pavement applications
Authors: Otuoze H.S. , Shuaibu A.A. , Ahmed H.A. , Suleiman I.T. , Bello I. , Yusuf K.O. 
Published: September 2020

Synoptic findings by researchers have revealed tremendous physic-chemical improvements of polymer modified mixes over the conventional asphalt. Traditionally, laboratory mechanical properties were carried out for asphalt testing, but cannot calibrate simple performance test (SPTs) criteria for fatigue and field performance. Marshall test-sized specimens of polymer asphalt mixtures were engineered with arbitrary contents of 0 to 3.0% polypropylene waste admixed with 4.5 to 6.5% bitumen contents based on relevant literature. Creep deformation involves uniaxial static creep (USC) test using BS 598-111. Morphological examinations were test with Hitachi S-4700 field-emission scan-electron-microscope (FE-SEM). Thirdly, thermal degradation was determined using Shimadzu TGA-50 thermo-gravimetric analyzer. The results showed creep resistivity with fatigue recovery of 23.2% and 28.9% strain reduction at 10oC and 60oC respectively from the optimal 2.0% polypropylene and 6.0% bitumen compared to the control mix. Also, the same mix produced well dispersed and better enhanced pore packaging micro-structure capable of resisting ageing volatization under severe traffic and environmental loading conditions considered.
Keywords: Asphalt pavement, polypropylene, creep deformation, age volatization and microstructure