bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Morphological Development of Ordered Nanotube Structure Due to the Anodization of Ti Foil with Axial and Radial Current Flow
Authors: Lee Kar Chun , Saharudin Khairul Arifah , Sreekantan Srimala 
Published: May 2020

Background:
One-dimensional titania nanotubes (TNT) have attracted increasing scientific
and technological attention due to their physical properties and their potential applications. Dimensionality
and well-aligned ordered structure have a crucial role in determining the properties and
performance of titania nanotubes. Therefore, an understanding of the transformation and growth
mechanisms to explain the origin of this nanomaterial symmetry is of great importance.

Objectives:
The relationship between the direction of current flow and the morphology of the anodized
foil was investigated to understand the influence of a compact oxide layer formation on the
growth of nanotubes.

Methods:
To achieve the purpose, single (SA) and double-sided anodization (DA) were performed to
control the direction of the current flow in this experiment by immersing one side and both sides,
respectively in the electrolyte containing 0.6 wt% of NH4F, 1.0 wt% of H2O2, and 98.4 wt% of ethylene
glycol (EG) at 60V.

Results:
It was found that the channeling of current flow into axial and radial directions influenced
the effectiveness of oxygen species in the formation of an initial oxide layer. The field-assisted dissolution
of the compact oxide layer resulted in a low-symmetry nanotube arrangement, whereas the
growth at the interface, which is governed by the plastic flow mechanism, resulted in high-symmetry
nanotube arrangement in a hexagonal form. These findings offer an integrated perspective when
determining whether the plastic flow mechanism or field-assisted dissolution occurs during anodization.
Octahedral titania crystals were also found on the surface of the anodized film, indicating the
possibility of forming facet structures via anodization.

Conclusion:
This research successfully showed the influence of current flow via SA & DA on the
growth of TiO2 nanotubes. An axial flow of current in Ti foil during SA resulted in disordered nanotubes,
while the radial flow of current during DA stemmed the growth of nanotubes from the Ti-TiO2
interface to form well oriented hexagonal nanotube structures.
Non-Conventional Technique of Machining and Metallization of Polymer Components
Authors: Kumar Raman , Chohan Jasgurpreet S. , Sehgal Satbir S. 
Published: May 2020

Background:
Machining and metal coating of plastics are essential requirements as plastics
are overtaking other engineering materials nowadays. Metallization improves product life as well as
enhances its surface and mechanical properties. The machining (i.e., cutting, drilling, boring) of plastic
parts with conventional processes is difficult as the dimensional accuracy and surface finish cannot be
obtained from existing methods or/and needs multiple operations to acquire the surface finish needed.
The coating of plastic materials is also a complex method using chemicals and electricity. An
innovative method of coating and machining on plastic components has been demonstrated, which
would be beneficial for potential researchers. A detailed analysis of previous patents and techniques has
been performed based on which an advanced apparatus has been proposed.

Objective:
The objective of this study was to develop an apparatus based on non-conventional
machining techniques. Moreover, the apparatus would be capable of plating metal layer on polymers
using chemicals and fine metal particles. An in-depth analysis of previous patents used for the same
application has been performed and based on the limitations of already existing techniques.

Methods:
An apparatus for machining and metal coating of polymers utilizes compressed air at high
pressure mixed with chemical vapors. Before compression, the air is filtered to remove the impurities
and moisture. Afterwards, heated chemical vapors are mixed with air in a specific proportion for
machining of plastic parts. A jet of air and chemical vapours impinges on work material, which would
perform machining in two steps. Initially, the chemical vapours would dissolve plastic material, which
would instantly melt and starts flowing. Afterwards, the air jet would remove the excess plastic material
due to high pressure. On the other hand, metallization can also be performed using different chemicals
in proper proportion.

Results:
The apparatus makes it easy for machining and metalizing the ABS or plastic parts as the
process is performed on one apparatus simultaneously one after the other. The high speed jet of acetone
vapors has a greater tendency to perform various machining operations like cutting, drilling, boring of
ABS parts. These vapours, when mixed with pressurized air, enhance the capability of machining the
workpieces. And the metallization of plastic parts provides luster and surface finish to the workpiece.

Conclusion:
The present invention is to provide an apparatus for effectively plating or coating the machined
workpieces. Moreover, the present work provides detailing of an apparatus for improving the
mechanical strength, hardness and surface finish of the machined workpiece. In addition to this, the
proposed apparatus is enabled to make strong bonding between metal particles and plastics.
Withdrawal Notice: Prognosis And Prediction Of Breast Cancer (Bc) Using Growing Mlt (Machine Learning Techniques)
Authors: Maurya Rajesh Kumar 
Published: May 2020

The article has been withdrawn at the request of the editor of the journal Recent Advances in Computer Science and Communications.

The Bentham Editorial Policy on Article Withdrawal can be found at https://benthamscience.com/editorial-policies-main.php

Bentham Science Disclaimer:
It is a condition of publication that manuscripts submitted to this journal have not been published and will not be simultaneously
submitted or published elsewhere. Furthermore, any data, illustration, structure or table that has been published elsewhere
must be reported, and copyright permission for reproduction must be obtained. Plagiarism is strictly forbidden, and by submitting
the article for publication the authors agree that the publishers have the legal right to take appropriate action against the
authors, if plagiarism or fabricated information is discovered. By submitting a manuscript the authors agree that the copyright
of their article is transferred to the publishers if and when the article is accepted for publication.
conveniência dos algoritmos
Authors: Reis Ruth , Zanetti Daniela , Frizzera Luciano 
Published: May 2020

O YouTube, por meio do seu sistema de recomendação de vídeos, vem sendo apontado como uma plataforma de disseminação de ideias conservadoras, na qual se desenvolve um modelo alternativo de influência que favorece a promoção de temas contrários às noções de justiça social e direitos humanos. A partir de um levantamento de vídeos mais recomendados no YouTube durante as eleições de 2018, este estudo traz apontamentos sobre os modos de ação desta plataforma, a atividade dos algoritmos e as estratégias dos actantes, humanos ou robôs, no cenário político eleitoral brasileiro, no qual predominaram os temas da campanha do candidato Jair Bolsonaro e o discurso conservador que marcou sua trajetória até a presidência do Brasil.
Inequity in Access to Transplantation in the United Kingdom
Authors: Pruthi Rishi , Robb Matthew L. , Oniscu Gabriel C. , Tomson Charles , Bradley Andrew , Forsythe John L. , Metcalfe Wendy , Bradley Clare , Dudley Christopher , Johnson Rachel J. , Watson Christopher , Draper Heather , Fogarty Damian , Ravanan Rommel , Roderick Paul J. ,   on behalf of the ATTOM Investigators
Published: May 2020

Background and objectives
Despite the presence of a universal health care system, it is unclear if there is intercenter variation in access to kidney transplantation in the United Kingdom. This study aims to assess whether equity exists in access to kidney transplantation in the United Kingdom after adjustment for patient-specific factors and center practice patterns.

Design, setting, participants, & measurements
In this prospective, observational cohort study including all 71 United Kingdom kidney centers, incident RRT patients recruited between November 2011 and March 2013 as part of the Access to Transplantation and Transplant Outcome Measures study were analyzed to assess preemptive listing (n=2676) and listing within 2 years of starting dialysis (n=1970) by center.

Results
Seven hundred and six participants (26%) were listed preemptively, whereas 585 (30%) were listed within 2 years of commencing dialysis. The interquartile range across centers was 6%–33% for preemptive listing and 25%–40% for listing after starting dialysis. Patient factors, including increasing age, most comorbidities, body mass index >35 kg/m2, and lower socioeconomic status, were associated with a lower likelihood of being listed and accounted for 89% and 97% of measured intercenter variation for preemptive listing and listing within 2 years of starting dialysis, respectively. Asian (odds ratio, 0.49; 95% confidence interval, 0.33 to 0.72) and Black (odds ratio, 0.43; 95% confidence interval, 0.26 to 0.71) participants were both associated with reduced access to preemptive listing; however Asian participants were associated with a higher likelihood of being listed after starting dialysis (odds ratio, 1.42; 95% confidence interval, 1.12 to 1.79). As for center factors, being registered at a transplanting center (odds ratio, 3.1; 95% confidence interval, 2.36 to 4.07) and a universal approach to discussing transplantation (odds ratio, 1.4; 95% confidence interval, 1.08 to 1.78) were associated with higher preemptive listing, whereas using a written protocol was associated negatively with listing within 2 years of starting dialysis (odds ratio, 0.7; 95% confidence interval, 0.58 to 0.9).

Conclusions
Patient case mix accounts for most of the intercenter variation seen in access to transplantation in the United Kingdom, with practice patterns also contributing some variation. Socioeconomic inequity exists despite having a universal health care system.
Classification of Lexile Level Reading Load Using the K-Means Clustering and Random Forest Method
Authors: Rosyid Harits Ar , Pujianto Utomo , Yudhistira Moch Rajendra 
Published: May 2020

There are various ways to improve the quality of someone's education, one of them is reading. By reading, insight and knowledge of various kinds of things can increase. But, the ability and someone's understanding of reading is different. This can be a problem for readers if the reading material exceeds his comprehension ability. Therefore, it is necessary to determine the load of reading material using Lexile Levels. Lexile Levels are a value that gives a size the complexity of reading material and someone's reading ability. Thus, the reading material will be classified based a value on the Lexile Levels. Lexile Levels will cluster the reading material into 2 clusters which is easy, and difficult. The clustering process will use the k-means method. After the clustering process, reading material will be classified using the reading load Random Forest method. The k-means method was chosen because of the method has a simple computing process and fast also. Random Forest algorithm is a method that can build decision tree and it’s able to build several decision trees then choose the best tree. The results of this experiment indicate that the experiment scenario uses 2 cluster and SMOTE and GIFS preprocessing are carried out shows good results with an accuracy of 76.03%, precision of 81.85% and recall of 76.05%.
A crônica mundana e a circulação transnacional de modelos narrativos
Authors: Imada Heloísa , Levin Orna 
Published: May 2020

Atentando para o vínculo estreito entre literatura e imprensa periódica durante as primeiras décadas do século XX, este artigo procura examinar a crônica mundana na perspectiva da circulação transnacional, sobretudo, no eixo França-Brasil. A análise se apoia em conceitos da história cultural, dando ênfase à história literária da imprensa. Considera que por se dedicar ao retrato da vida elegante nos centros urbanos, a crônica mundana ajudou a criar e legitimar um imaginário de modernidade nas cidades. O objetivo é investigar por meio desse gênero textual a construção literária do imaginário coletivo e observar a transferência de modelos de escrita no momento de expansão da cultura midiática. O trabalho realiza um exercício de análise comparativa entre dois periódicos – a revista francesa Femina e a Revista da Semana –, tendo em vista que ambas circularam no Rio de Janeiro na Belle Époque. As semelhanças e diferenças entre as crônicas das duas revistas indicam características do processo de adaptação e apropriação dos gêneros literários. Essa modalidade jornalístico-literária contribuiu para forjar referências compartilhadas de práticas modernas.
Factores relacionados con la calidad de la educación superior en Colombia
Authors: González-Castro Yolanda , Peñaranda-Peñaranda Marta Milena , Manzano-Durán Omaira 
Published: May 2020

Esta investigación analiza los factores del entorno del estudiante como el estrato social, la edad y el número de horas dedicadas al trabajo que pueden influir en el resultado de las pruebas Saber Pro del Instituto Colombiano para el Fomento de la Educación Superior [IFCES] en las competencias genéricas: Lectura Crítica, Comunicación Escrita y Razonamiento Cuantitativo en los estudiantes del programa de Administración de Empresas. La investigación es de tipo cuantitativo con diseño no experimental longitudinal. Las principales técnicas estadísticas de análisis utilizadas son: Medidas de tendencia central, varianza y regresión lineal. Los resultados indican que no hay una fuerte correlación entre el estrato, las horas dedicadas al trabajo, la edad y los resultados en las competencias genéricas anteriormente descritas. Sin embargo, la variable que explica mejor la variabilidad de los resultados en las competencias genéricas es la edad.
Evaluación del capital intelectual bajo el modelo Intellectus: sinergia de conocimientos y estrategias en la Universidad Francisco de Paula Santander Ocaña
Authors: Quintero-Quintero Wilder , Peñaranda-Peñaranda Martha Milena , Rodríguez-Castilla Magda Mildred 
Published: May 2020

El Capital Intelectual, pretende dimensionar el conjunto de activos intangibles con que cuentan las organizaciones, de ahí que este estudio centra su atención en la evaluación del capital intelectual en la Universidad Francisco de Paula Santander seccional Ocaña, con un enfoque cuantitativo no experimental de tipo transversal descriptivo, donde a partir del diseño de medición permitió diagnosticar cada uno los elementos que componen el capital intelectual como son: capital humano, capital estructural y capital relacional. Los resultados de la revisión teórica y la consulta a expertos permitió determinar el modelo Intellectus como el referente teórico para esta investigación. Del análisis estadístico realizado se pudo determinar la necesidad de capacitaciones para el fortalecimiento del capital humano así como del diseño de estrategias que permitan un mayor crecimiento institucional de cara al desarrollo de su capital estructural y sostenibilidad de su capital relacional.
El cine; estrategia didáctica frente a las realidades del Catatumbo
Authors: Alba-Maldonado Jose Manuel , Duarte Andrea Marcela , Valdes-Solano Diana Milena 
Published: May 2020

El siguiente artículo es resultado del espacio-investigativo “Cine Club Bari” en dónde se generaron reflexiones académicas en torno al posconflicto, su relación con el territorio y las sociedades rurales, como desarrollo de la línea de investigación Gestión ambiental y su sublímela Sociedades rurales, Territorio y Posconflicto del grupo de investigación Gi@ds de la Universidad Francisco de Paula Santander Ocaña. Está enmarcado en investigación cualitativa, con un enfoque crítico social y como método de análisis grupo focal, en el campo de la pedagogía, empleando al cine como estrategia didáctica. Se proyectaron 9 películas durante el primer semestre del 2017 organizadas en tres ciclos: Guerra y sociedades rurales, Territorio botín en disputa y Postconflicto. Como resultados se encontró que los estudiantes debatieron alrededor de las siguientes categorías: Desplazamiento, fragmentación de grupos familiares, niñez, tejido social, ruralidad, recursos naturales, resiliencia y ejercicio de la política en contextos locales, paz y reconciliación. A modo de conclusión el cine abrió espacios de dialogo de saberes y de construcción de conocimiento desde la colectividad en torno a las dinámicas del Catatumbo, lo que le generó en los estudiantes procesos de autorreflexión frente a su papel como profesionales en la sociedad y su región.
MENINGKATKAN PRESTASI BELAJAR MATEMATIKA MELALUI PENGGUNAAN MODEL PEMBELAJARAN PROBLEM SOLVING PADA SISWA SD
Authors: BIANTARA DEWA NYOMAN ALIT 
Published: May 2020

Penelitian ini dilaksanakan di SD Negeri 2 Kenderan di kelas VI yang kemampuan siswanya untuk mata pelajaran Matematika masih rendah. Tujuan penulisan penelitian tindakan kelas ini adalah untuk mengetahui apakah prestasi belajar siswa dapat ditingkatkan dengan menerapkan langkah-langkah model pembelajaran Problem Solving. Metode pengumpulan datanya adalah tes prestasi belajar. Metode analisis datanya adalah deskriptif. Hasil yang diperoleh dari penelitian ini adalah prestasi belajar siswa dapat ditingkatkan dengan menerapkan langkah-langkah model pembelajaran Problem Solving. Ini terbukti dari hasil yang diperoleh pada awalnya 68,09 pada siklus I meningkat menjadi 72,61 dan pada Siklus II meningkat menjadi 80,95. Kesimpulan yang diperoleh dari penelitian ini adalah prestasi belajar Matematika siswa kelas VI SD Negeri 2 Kenderan dapat ditingkatkan dengan menerapkan langkah-langkah model pembelajaran Problem Solving.
Authors: Prasetyo Sigit , Houtman Houtman , Yusmiono Boby Agus 
Published: May 2020

Abstrak
Penelitian ini bertujuan mengungkap faktor faktor yang menjadi penghambat guru dalam pelaksanaan pembelajaran geografi kelas X SMA Negeri 1 Indralaya.Penelitian ini menggunakan pendekatan kualitatif. Objek penelitian ini adalah pembelajaran geografi kelas X SMA Negeri 1 Indralaya. Subjek penelitian ini adalah Kepala Sekolah, guru geografi, dan siswa-siswi kelas X SMA Negeri 1 Indralaya. Pengumpulan data dilakukan dengan metode wawancara, observasi, dan dokumentasi. Teknik analisis data yang digunakan adalah a) reduksi data, b) penyajian data, dan c) pengambilan kesimpulan. Uji keabsahan data menggunakan teknik trianggulasi. berdasarkan hasil penelitian ditemui tiga faktor utama yang menjadi penghambat dalam pelaksaan pembelajaran geografi pada kelas X SMA Negeri 1 Indralaya yakni; 1) faktor guru, 2) faktor sarana prasarana, dan 3) faktor proses pembelajaran. Selanjutnya dari hasil penelitian ditemui, bahwa upaya yang dilakukan guru untuk mengatasi permasalahan pembelajaran belum ada dampak yang siknifikan terhadap peningkatan kualitas pembelajaran geografi pada kelas X SMA Negeri 1 Indralaya.

Kata kunci: Proses pembelajaran, faktor penghambat, pembelajaran geografi
Budaya Islam Nelayan Pesisir Utara Lamongan Jawa Timur
Authors: Nurdin Ali 
Published: May 2020

This study aims to understand and describe the religious traditions of fishers in Pesisir Utara Lamongan, East Java in their daily realities that shape transcendental experiences. This study uses a phenomenological approach to describe the experience of the religious practice of the fishers in Pesisir Utara Lamongan, East Java. The data were collected through in-depth interviews and were analyzed using flow models with the viewpoint of symbolic interaction theory that explored the symbolic meaning of the fishersâ€™ behavior. The results of this study described that the daily experience of the fishers in social life is constructed in three religious practices, namely monotheism, social life, and worship. The monotheistic dimension of the fishers is transformed from offerings to monotheism. The dimension of the social life of the fishers is constructed based on the monotheism of Nahdlatul Ulama (NU) and Muhammadiyah teachings. The dimension of worship of the fishers is portrayed in the practice of religious prayer, fasting, and going to wise persons formed by the results of interaction with the surrounding social world.

Penelitian ini bertujuan untuk memahami dan mendeskripsikan tradisi keagamaan nelayan Pesisir Utara Lamongan, Jawa Timur dalam realitas keseharian yang membentuk pengalaman transendental. Penelitian ini menggunakan pendekatan fenomenologi untuk mendeskripsikan pengalaman praktik keagamaan nelayan Pesisir Utara Lamongan, Jawa Timur. Pengumpulan data dilakukan dengan wawancara mendalam dan dianalisis dengan menggunakan model alir dengan sudut pandang teori interaksi simbolik yang mengeksplorasi makna simbolik perilaku nelayan. Hasil penelitian ini mendeskripsikan bahwa pengalaman keseharian nelayan dalam kehidupan sosial terkonstruksi dalam tiga praktik keagamaan yaitu dimensi tauhid, kehidupan sosial, dan ibadah. Dimensi tauhid nelayan mengalami transformasi dari sesajen ke tauhid. Dimensi kehidupan sosial nelayan dikonstruksi berbasis tauhid ajaran Nahdlatul Ulama (NU) dan Muhammadiyah. Dimensi ibadah nelayan terpotret dalam praktik keagamaan sholat, puasa, dan pergi ke orang pintar yang dibentuk atas hasil interaksi dengan dunia sosial di sekitarnya.
Polyhydroxybutyrate for Improved Oil Recovery: A Literature Review
Authors: Mohd Taib Norrulhuda , Achim Norfarisha , Hassan Zulkafli 
Published: May 2020

In this study the role of polymer flooding as one of the most efficient processes to enhance oil recovery (EOR) is discussed. Polyhydroxybutyrate (PHB) is a bio-based polymer that has potential application for use in polymer flooding. This polymer is reviewed with particular emphasis on the effect of concentration, shear rate, salinity, hardness and temperature on polymer viscosity. Initial findings showed that PHB owned higher resistant as compared to mechanical degradation and thermal stability of HPAM as well as XG.
Influence of Fresh and Thermoxidized Carotino Oil on Cyclic Guanosine Monophosphate (cGMP) in Erythrocytes from Sprague Dawley Rats
Authors: Raja Yahya Mohd Fakharul Zaman , Shahidan Athifah Najwani 
Published: May 2020

Cyclic guanosine monophosphate (cGMP) is a second messenger molecule involved in the intracellular signalling mechanism which is important in a wide range of cellular process including metabolism, gene expression, cell proliferation and cell death. This study was conducted to determine the effect of fresh carotino oil (FCO) and thermoxidized carotino oil (TCO) on erythrocyte cGMP levels .fi·om Sprague Dawley rats. A total of 30 Sprague dawley rats were randomly segregated into three groups: the first o.f which was placed on a Fresh Carotino Oil (FCO) diet, the second on a Thermoxidized Carotino Oil (TCO) diet and the control group on commercial rat chow on(v for a period of 6 and 9 weeks. The two oil diets comprised o.f 20% (w:w) of each oil mixed with commercial rat.feed. The enzyme immunoassays, performed in week 6, revealed that the erythrocytes cG MP levels for the FCO and TCO groups were 66.198±3.193 pmol/ml and 61.990±6.318 pmol/ml respectively, and were significant (p<0.05) lower than the value .for the control group, 77.978±10.479 pmol/ml. The assays performed in week 9 revealed the erythrocytes cG MP levels for the FCO and TCO groups to be 66.522±8.194 pmol/ml and 56.842±8.546 pmol/ml respectively which were also significantly (p<0.05) lower than that for the control group, 82.817±6.677 pmol/mL. The results indicate that the presence o.l antioxidants, such as beta-carotene and tocols in carotino oil may modulate cG MP levels in rats.