bluuebunny/crossref_metadata_2025 huggingface dataset:
ADSORPSI ZAT WARNA TEKSTIL REACTIVE RED 141 PADA TANAH LIAT LOKAL ALAMI
Authors: Zahra Nurulbaiti Listyendah , Sugiyana Doni , Notodarmojo Suprihanto
Published: November 2018

Dalam studi ini dipelajari kemampuan adsorpsi tanah liat lokal alami untuk menyisihkan warna pada larutan mengandung zat warna tekstil Reactive Red 141 (RR 141). Tanah liat lokal alami yang diteliti sebagai alternatif adsorben yang murah dalam studi ini berasal dari daerah Arcamanik, Citatah dan Dago (Bandung, Indonesia). Aspek yang dipelajari meliputi pengaruh dosis adsorben, waktu kontak dan konsentrasi awal larutan zat warna. Mekanisme proses adsorpsi dievaluasi menggunakan model isoterm, kinetika dan parameter termodinamika. Hasil penelitian ini menunjukkan bahwa peningkatan efisiensi penyisihan warna dan penurunan kapasitas adsorpsi tanah liat terjadi pada dosis adsorben lebih tinggi dan konsentrasi awal zat warna lebih rendah. Dosis adsorben optimum untuk tanah liat Arcamanik, Dago dan Citatah dicapai pada dosis masing-masing sebesar 10 g/L; 10 g/L; dan 8 g/L, dengan penyisihan zat warna berturut-turut sebesar 65,9%; 65,9%; dan 76,6%. Waktu kesetimbangan adsorpsi RR 141 pada tanah liat Arcamanik dan Citatah dicapai pada 60 menit sedangkan pada tanah liat Dago tercapai pada 120 menit. Kinetika adsorpsi RR 141 pada seluruh tanah liat lokal yang diteliti sesuai dengan model pseudo second order. Data kesetimbangan adsorpsi RR 141 pada tanah liat Arcamanik paling baik digambarkan oleh model isoterm Freundlich sedangkan untuk tanah liat Citatah dan Dago paling baik digambarkan oleh model isoterm Langmuir. Nilai perubahan energi bebas pada tanah liat Arcamanik, Citatah dan Dago masing-masing sebesar -4,794; -7,048 dan -4,234 kJ/mol.
“El Patrimonio Histórico: clave para la identidad cultural y plataforma para el desarrollo de nuevos productos”
Authors: Castellanos Alvarado Adriana , Maya Tapiero Sebastián
Published: November 2018

El presente trabajo de investigación, elaborado de forma interdisciplinar entre arqueólogos, biólogos y diseñadores industriales, recopila los objetos cerámicos Malagana del período clásico (500 a.C. – 500 d.C.), con el fin de realizar un análisis morfológico mediante tipologías objetuales según su forma y función, tomando como referencia parámetros establecidos desde las teorías fundamentales de la estética y la comunicación del diseño. El resultado de la investigación tiene como finalidad, por una parte, aportar insumos para la generación de propuestas museográficas para su divulgación y, por otra, contribuir en la creación de estrategias para el desarrollo local en el sector turístico, potenciando el valor y las ventajas que este patrimonio trae a la región.
“La incidencia del lugar en la Capilla de Ronchamp”
Authors: Sarmiento Ocampo Jaime Alberto
Published: November 2018

La Capilla de Ronchamp se originó en una de las primeras visitas de Le Corbusier al lugar. Se trató de un nacimiento que parecía espontáneo, pero que en realidad llevaba muchos años de incubación a través de los ejercicios alternos que el maestro suizo mantenía en la pintura y la escultura, en especial de un concepto que denominó como el fenómeno de la ‘forma acústica’, el cual en resumen consistía en formas que se ponían en estrecha relación con el espacio circundante. De igual manera la Capilla surgió como una respuesta al lugar; sus formas se deben a las impresiones del paisaje sobre el edificio y a la vez la iglesia se proyecta sobre el entorno, estableciendo un diálogo permanente entre arquitectura y naturaleza. Este escrito refiere el proceso en que se concibió la Capilla, y las influencias que tenía Le Corbusier durante su creación. Se mostrará cómo esta simbiosis entre arquitectura y naturaleza tiene sus raíces en los tempranos viajes de formación de Le Corbusier, en articular lo que aprendió en la Acrópolis de Atenas, en sus actividades alternas de la pintura y la escultura, y en especial se debe al gran respeto y aprecio que sentía por la naturaleza y el lugar.
Alfabetización gráfica: proceso fundamental en el aprendizaje y enseñanza del diseño en la arquitectura
Authors: Sánchez Rincón Pavel
Published: November 2018

Este artículo expone como entre la variedad de factores que componen la enseñanza y aprendizaje del diseño de la arquitectura, se hace fundamental dar un valor especial a aquellos que guían los procesos educativos encargados de nutrir las habilidades de conocimiento y comprensión de las técnicas de representación existentes. A su vez, es importante fundamentarlos con unas bases conceptuales claras, que se conviertan en los cimientos teóricos del estudiante. El enfoque de la investigación fue “la investigación-acción participativa” y esta se desarrolló a partir de cuatro instrumentos básicos: Análisis de documentos, ejercicios de diseño, entrevistas y triangulación de la información compilada. Los resultados finales llevaron el trabajo por un nuevo rumbo encaminado a indagar acerca de las didácticas educativas y los métodos de enseñanza.
Territorio, clase social y lugar: premisas fundamentales del desarrollo territorial de base local, ecológica y cultural
Authors: Saquet Marcos Aurelio
Published: November 2018

Este artículo sintetiza el abordaje territorial de la investigación-acción en procesos de territorialización, desterritorialización y reterritorialización, destacando las premisas fundamentales para construir el desarrollo territorial de base local, ecológica y cultural, en el espacio urbano y rural. Una de las condiciones fundamentales es la formación y la calificación de la conciencia de clase y de lugar, por medio de la movilización y participación popular en cada proyecto de desarrollo, con el fin de lograr la conquista de autonomía decisoria y de autogestión, la conservación de la naturaleza y la valorización del patrimonio cultural. Los procedimientos utilizados en este trabajo son la investigación bibliográfica y empírica. El principal resultado es la orientación para la realización de proyectos de desarrollo territorial.
Derechos colectivos a la naturaleza en los procesos de suburbanización de los suelos rurales en Filandia y Montenegro-Quindío
Authors: Torres Saavedra Adriana Yanet , Rincón Largo Jorge Andrés
Published: November 2018

Este artículo busca identificar las conexiones y rupturas de los derechos colectivos a la naturaleza en los procesos de urbanización de los suelos suburbanos en los municipios de Filandia y Montenegro en el Departamento de Quindío. El texto aborda la implementación de las normas al respecto del uso y la ocupación de estos suelos; la identificación de los diferentes actores que intervienen en el proceso de parcelación; y la revisión historiográfica del paisaje para evidenciar los cambios de usos del suelo en estos procesos. Como principales resultados se destacan la vulneración del conjunto de normas que regula el uso y la ocupación del suelo suburbano; así mismo se evidenció que no hay prácticas de parcelación – subdivisión rural asociado a desarrollos sostenibles, generando conflictos ambientales como la demanda en aumento del recurso hídrico, la transformación del paisaje, el agotamiento de la flora y fauna nativa y la pérdida de suelos aptos para la actividad agrícola, poniendo en riesgo la sostenibilidad alimentaria. La principal recomendación es para las administraciones locales que ven una alternativa de desarrollo en estos procesos, pero que, al estar desprovistos de instrumentos de gestión y financiación del suelo, impiden la captura de las rentabilidades obtenidas por los privados.
Arquitectura como espejo y reflejo
Authors: Pinto Quintero Sebastián
Published: November 2018

La planificación de las ciudades, se ha convertido en un enfrentamiento entre posturas que históricamente han trabajado aisladas: la conservación y la utopía, una ciudad tradicional que siendo victima del crecimiento en masa, se niega a través de planes totalizadores modernos que buscan acabar con su identidad. Estos dos bandos pueden trabajar como bisagra en la perfecta unión y correspondencia a un todo, la ciudad vista como un collage al entrar en un constante diálogo para el equilibrio. La ciudad de hoy debe estar en la capacidad de actuar como espejo y reflejo, auto-reconociéndose, entendiendo al pasado como fuente de identidad, para lograr proyectarse a futuro como resultado y amalgama de lo existente y lo expectante, a través de un acto de inteligencia y respeto.
Diagnóstico de archivos municipales de la antigua provincia zoque del estado de Chiapas
Authors: Moguel Villatoro Henry
Published: November 2018

En 2012 la Universidad de Ciencias y Artes de Chiapas (Unicach) en conjunto con la asociación civil Apoyo al Desarrollo de Archivos y Bibliotecas de México (ADABI) llevaron a cabo el proyecto “Rescate de archivos históricos de la provincia zoque (siglos xvi al xxi)”, con el objetivo de hacer un diagnóstico de los archivos de 25 municipios del estado de Chiapas, los cuales durante la época colonial formaron parte del territorio de la antigua provincia zoque de la alcaldía mayor de Chiapa. Como resultado de éste diagnóstico se detectaron tres archivos de ayuntamientos, siete archivos parroquiales y 16 archivos del registro civil, que en su mayoría conservan documentos de los siglos xix y xx y en menor cantidad de los siglos xvii y xviii.
El sindicalismo en México a través de la lente de Aurelio Escobar
Authors: Quintero Barajas Ana Lilia
Published: November 2018

El fotógrafo Aurelio Escobar Castellanos capturó con su cámara múltiples aspectos de la evolución de la ciudad de México y de sus habitantes. Se especializó en el uso de la cámara rotativa Cirkut, la cual permitía conseguir imágenes panorámicas con una perspectiva de hasta 360º y obtener negativos de más de dos metros de longitud. La maestría que logró en la fotografía panorámica lo llevó a ser reconocido por múltiples e importantes instituciones de nuestro país, sobre todo por un sinnúmero de sindicatos con los cuales estuvo comprometido a lo largo de su vida y su labor como fotógrafo, por lo que sus imágenes son un testimonio invaluable para la investigación y comprensión del sindicalismo en nuestro país.
Biyoloji Proje Çalışmalarının Üstün Zekâlı ve Yetenekli Öğrencilerin Bilimsel Tutumlarına Etkisi
Authors: OZARSLAN Murat
Published: November 2018

Bu çalışmanın amacı,
biyoloji proje çalışmalarının üstün zekâlı ve yetenekli öğrencilerin bilimsel
tutumlarına etkisini belirlemektir. Çalışmada kontrol grupsuz öntest-sontest
deneysel desen uygulanmış, nitel ve nicel veri toplama araçları beraber
kullanılmıştır. Çalışma, 2012-2013 eğitim-öğretim yılı güz döneminde Marmara
Bölgesi’nde bulunan iki (Bilim ve Sanat Merkez) BİLSEM’e devam eden ve biyoloji
proje çalışması gerçekleştiren 46 üstün zekalı ve yetenekli öğrenci ile
gerçekleştirilmiştir. Veriler, öntest-sontest olarak Bilimsel Tutum Ölçeği ve
proje sonrasında ise Yarı Yapılandırılmış Görüşme Formu ile toplanmıştır.
Çalışmada nicel verilerin analizi SPSS 20 paket programı yardımıyla Wilcoxon
İşaretli Sıralar Testi ve betimsel analiz istatiksel yöntemleri ile
yapılmıştır. Nitel veriler içerik analiz yöntemi ile analiz edilmiştir.
Araştırma sonuçlarında, öğrencilerin hem öntest ve
sontest puanlarına göre bilimsel tutumlarının yüksek düzeyde olduğu
belirlenmiştir. Biyoloji proje çalışmalarının öğrencilerin bilimsel tutumlarına
istatiksel olarak anlamlı bir etkisinin olmadığı tespit edilmiştir. Ayrıca
öğrencilerin, BİLSEM’de biyoloji projelerinin yapıldığı mekânın yetersizliği, malzeme ve araç gereçlerin temini ve kullanımı
konularında sorunlar yaşadığı, proje tamamlama süresinin yetersizliği olduğu, orijinal ve özgün proje konusu bulmakta
zorlandığı belirlenmiştir.The purpose of this study is to determine the impact of biology project work on the scientific attitudes of gifted and talented students. This study was composed of pre-test and post-test experimental research design without control group. Quantitative and qualitative research methods have been used for collecting data in the study. It was conducted with 46 gifted and talented students who were registered at two different centre of BİLSEM (Science and Art Centre) in the Marmara Region, and who carried out biology project work during the autumn semester of 2012-2013 academic year. Data was collected using pre-test and post-test research model and Scientific Attitude Scale. Semi-structured Interview Form was used after the project. Wilcoxon Signed Ranks Test and descriptive analysis statistical methods were used to analyse the quantitative data of the study with the help of SPSS 20 software program. Qualitative data was analysed using content analysis method. The results of our study revealed that both of the pre-test and post-test scores of scientific attitudes of the students were high.  It is also understood that biology project work did not show any statistically significant effect on the scientific attitudes of the students.  In addition, it has been determined that the students experience several problems at  BİSEM, such as  inadequate study space for the biology projects, insufficient supply and use of materials and equipment, limited project completion period, the difficulty in finding the original and unique project topics.
Analysis of static and free vibration of the sandwich folded plate using the Layerwise theory
Authors: Bui Thang Xuan , Dang Hau Trung
Published: November 2018

In this paper, the static and free vibration analyses of the sandwich folded plate modeled by layer-wise (LW) theory are studied. In the theory, the continuity displacement condition is imposed at the layer’s interfaces. Each layer of the plate is modeled by the first-order shear deformation theory (FSDT). The numerical solutions are obtained by using the cellbased smoothed discrete shear gap method (CS-DSG3). Some examples are implemented to demonstrate the accuracy of the LW theory for the sandwich folded plate analyses.
The LA-ICP-MS U-Pb zircon age of rhyolite from the Dong Trau formation and its geological significances
Authors: Pham Hieu Trung
Published: November 2018

Zircons separated from an rhyolite sample in the Dong Trau formation, in the southern of Hà Tĩnh province were dated to determine the protolith age for the complex. Sixteen LA-ICP-MS U-Pb zircon analyses give concordant ages concentrated at 256 Ma (weighted mean). These results indicate the protolith age of the rhyolite (primary magma crystallization age). The value of this age are close to the analytical results pf the whole rock by Rb-Sr method and biotite Rb-Sr method. Therefore the crystallization age of the rhyolite from the Đồng Trầu formation corresponded period late Permian to early Triassic.
Flow analyses of highly concentrated xhantan gum fluid
Authors: TEZEL Guler Bengusu
Published: November 2018

The concentration effect of Xanthan gum (XG) solutions (1.0, 1.5, 2.0, 2.5% w/v) on the rheological flow parameters are examined using stress controlled rheometer and gravity driven flow set-up measurement at 25°C. Concentrated XG solutions has yielding behavior obtained by fitting results through Herschel-Bulkley (HB) model with highest regression coefficient R2 = 0.995 and R2 = 0.993 respectively by rheometer and set-up measurement. The results agreed well each other from these measurements. Increasing the concentration of XG solutions promote dynamic and static yield stresses due to increase of entanglement structure density of XG solutions. Also, the magnitudes of consistency index, K, have increasing trend with XG concentration as a result of increasing entanglement density of XG structure. Static yield stress values are much closely dynamic stress values getting from under gravity dynamic flow indicating that supplies undisturbed moleculer structure of XG due to nature of creeping flow.
Stimulasi Bermain Bercerita Metode Flanel Meningkatkan Sosialisasi Pada Anak Usia Prasekolah
Authors: Suhariati Hindyah Ike
Published: November 2018

Socialization is an ability that pre-school children must have in order to build good interaction with their friends in school. In fact 70 of pre-school children yet unable to make socialization in school. The purpose of this study is explaining the influence of flannel story telling play stimulation method to the socialization of pre school children. The design of this study is Quasi Experiment. All of the pre-school children that experiencing lack of socialization in TK. Dharma Wanita Persatuan RSJ Dr. Radjiman Wediodiningrat Lawang become the population. Non Randomise Sampling method is used, with 32 respondent, 16 children used as treatment group and 16 others as the control group. The independent variable was flannel story telling play stimulation method and the dependent variable was the socialization. Data was analized by Wilcoxon Sign Rank test and Mann-Whitney test with significance rate 95% (α = 0,05). The result showed that flannel story socialization improvement (p = 0,000), playing activity according to the curriculum didn’t improve the pre-school children socialization significantly (p = 0,157), there are difference between control group and after treatment group socialization with Mann-Whitney test (p = 0,004). Flannel story telling play stimulation method could improve socialization ability of telling play stimulation method influences the pre-school childrens pre-school children significantly. This playing activity can be used as the pediatric nursing care cast, to treat children with socialization problems.;Keywords : Flannel playing method, Socialization, pre-school
Perbedaan Kemampuan Motorik Ibu dalam Mencegah Regurgitasi pada Bayi Usia 0- 3 bulan Sebelum dan Sesudah Pendidikan Kesehatan (Latihan) Menyendawakan
Authors: Yanuarini Triatmi Andri , Antono Sumy Dwi , Wulandari Septia
Published: November 2018

According to the Indonesian Demographic and Health Survey (SDKI) in 2012, The infant mortality rate was 31,41 by 1,000 live births occured in the first month of life. Result of the interview on four people at work area Ngadiluwih public health center at Kediri Regency, indicating lack of knowladge and attitude towards regurgitation. Therefore, acces to health emphasis on nutritional conseling, how to be parents and accident prevention help reduce the infant mortality rate. The research was conducted on 23 June to 8 July 2014 aimed to determain Differences in motor skills in preventing regurgitation mothers to infants aged 0-3 months before and after health education (training) burping (analityc studies at work area Ngadiluwih public health center at Kediri Regency). Statistical analysis with the wilcoxon test found that the value of count equal to 5,301; z table (1,96) then H0 is rejected and H1 is accepted which means there is the Differences in motor skills in preventing regurgitation mothers to infants aged 0-3 months before and after health education (training) burping (analityc studies at work area Ngadiluwih public health center at Kediri Regency).; Keywords: Regurgitation, IMR, Suddent Infant Death Syndrom
Pavement condition and crashes
Authors: Levinson David , Yokoo Toshihiro , Marasteanu Mihai
Published: November 2018

This paper combines GIS data on crashes with a separate GIS database on pavement quality to test the relationship between pavement quality and crashes over 12 years. Poor road quality is associated with more property damage and injury crashes. The interaction of road quality and curves was surprising, indicating that good pavement quality on curves was associated with an increase in the fatal, injury, and property-damage crash rate.
AÇÕES EDUCATIVAS EM NUTRIÇÃO EM UMA UNIDADE DE PROGRAMA DE SAÚDE DA FAMÍLIA DO MUNICIPIO DE BOTUCATU, SP: RELATO DE EXPERIÊNCIA
Authors: Siqueira Muriel , Lustosa Beatriz Helena Borges , Santos Letícia de Almeida Stuart dos , Dias Luiza Cristina Godim Domingues
Published: November 2018

The Family Health Program is characterized as an important space to develop activities related to Nutrition, once the health community agent is a qualified, potential multiplier when performing these actions. The aim of this study was to conduct a qualifying pilot experiment on food and nutrition for health community agents from a family health unit in Botucatu. Fourteen community agents participated and the course presented the following steps: observation of reality, a survey of perceived necessities, devising the main intervention themes, and course development. The main focus was on existing diseases in the attended community like diabetes, hypertension, obesity, dyslepidemia and other themes related to preventing these diseases, for example, food fiber, water physical exercises, and the appropriate use of diet and light products. Besides these themes, there was also a presentation about the food pyramid and how to transmit recommendations for the visited families. The experience was positive with great interest and knowledge enhancement on the part of health community agents. In case there is a positive impact on the nutritional condition of the community attended by these agents, the Project may be extended to other Family Health units in Botucatu. Furthermore, the study also shows that to prepare such courses, it is crucial a nutritionist participation, because of the contribution this Professional may provide to the work group in which he is inserted.
ANALISA PERBANDINGAN DALAM RANGKA PEMILIHAN BEBERAPA IP UPSTREAM PROVIDER DI PT. INDOSAT
Authors: Anwar Yuli , . Dahlar
Published: November 2018

Abstract. One of the advances in information technology that now has changed the outlook and human life, business process and business strategy of an institution is the internet. The internet is a very large networks that connected to computers and serves throughout the world in one centralized network. With the internet we can access data and information anytime and anywhere.    As one provider of high-speed data communications services and the pioneer of the internet network service provider in Indonesia that provides integrated services, as well as one of the pioneer development of internet services that provide extensive services in the building and apply it throughout Indonesia. Indosat ready to seize opportunities for sustainable growth of business spectrum are still sprawling Indonesia.    Therefore, Indosat continues to focus on the development of increased efforts to provide the best service for customers of Indosat. Indosat will continue to develop and expand network coverage and a larger investment that the company will achieve excellence in the field of integrated telecommunications services.    Ranking by region of the IP Providers can be seen by grouping IP Providers, and management over IP Providers prefer to choose providers based on where it orginates as an example for the region of the U.S if it will be preferred providers that come from U.S. providers.With the commencement of the internet network optimization start early in 2008 with the selection of the appropriate IP Upstream Provider criteria, it is up to date according to data obtained from Indosat, seen any significant changes to the cost of purchasing capacity of the IP Upstream.    Based on the data obtained that until Q3 or September 2008, the number of IP Upstream Providers that previously there were 20 to 10 IP Upstream Provider, IP Transit Price total decrease of 11% to the price of IP Transit Price / Mbps there is a decrease of 78%, while from the capacity bandwith an increase of 301% capacity from 2008.
Antibacterial Activity of Bohera (Terminaliabellirica) Extract against Dental Carries Causing Bacteria Streptococcus mutans
Authors: Mizan MRB , Kamrunnahar - , Azad MAK
Published: November 2018

Dental caries is very common to people of Bangladesh. The treatment of dental carries is very expensive so alternative lowcost option from plant products are important for the rural people. Bohera (Terminaliabellirica) is known to people for its medicinal values. The antibacterial activity of methanolic extracts of bohera bark and fruits were tested against dental caries causing bacteria Streptococcus mutans. It was found that crude extracts of both bark and fruits of bohera have the antibacterial activity against Streptococcus mutans. The crude extract was purified with sillica gel (230-300mesh)with gradient elution of methanol, ethanol and chloroform. The purified extract of bohera also showed strong antibacterial activity against dental caries causing bacteria Streptococcus mutans. The rural people of Bangladesh may use the barks and fruits of bohera to control the dental caries problem locally.J. Environ. Sci. & Natural Resources, 10(2): 117-120 2017
Impact of Land Tenure System on Socio-Economic Characteristics in Selected Areas of Mymensingh
Authors: Haque Z , Jinan T
Published: November 2018

The present study aims at investigating into the existing land tenure system of Dorirampur, Jhairpar and Goisa para at Traishal Upazila of Mymensingh District. Keeping in view the objectives 70 samples were randomly selected. Survey method was followed to collect required data. Sampled farmers belonged to six tenurial groups. Out of 70 respondents 34, 22, 16, 7, 10 and 11 percent of total were owner operators, part operators, part tenants, part operator-cum-part tenants, tenants and absentee landowners respectively during the study year. In the study, out of 70 respondents 67 percent were owner operator, 33 percent of them were tenant operators. The selected farmers in the study area practiced three types of share cropping system: i) fifty-fifty share cropping, ii) forty-sixty share cropping and iii) fixed amount of paddy payment. The average annual income were found to be Tk. 97096, 128267, 5215, 76340, 35871 and 113563 respectively for owner operator, part operators, part tenants, part operator-cum-part tenants, tenants and absentee landowner. Analysis of annual income reveals a positive relationship between tenure category and that of annual income during the study area.J. Environ. Sci. & Natural Resources, 10(2): 133-142 2017
Trends of Outdoor Thermal Discomfort in Mymensingh: an Application of Thoms’ Discomfort index
Authors: Talukdar MSJ , Hossen MS , Baten MA
Published: November 2018

Thermal comfort is considered very important in aspects of risk assessment, summertime morbidity or in building designing. The present study applied Thom’s discomfort index (DI) to assess the trend of outdoor thermal discomfort in Mymensingh City during 2006-2015. It wasfound that December to February months was comparatively comfortable, DI values were typically <21 and therefore no people felt any discomfort in these months. On the other hand, under 50% population experienced discomfort during March and November months when discomfort valueswere ranged between 21- 24. From April to October months discomfort values varied from 25-27, which indicated thatover 50% population suffered from discomfort in this period. Though no extreme discomfort condition observed in Mymensingh city, the results revealed from June to September months most of the population suffered from severe discomfort in Mymensingh city due to the high air temperature, and high relative humidity.J. Environ. Sci. & Natural Resources, 10(2): 151-156 2017
A Machine Learning Approach for the Classification of Kidney Cancer Subtypes Using miRNA Genome Data
Authors: Muhamed Ali Ali , Zhuang Hanqi , Ibrahim Ali , Rehman Oneeb , Huang Michelle , Wu Andrew
Published: November 2018

Kidney cancer is one of the deadliest diseases and its diagnosis and subtype classification are crucial for patients’ survival. Thus, developing automated tools that can accurately determine kidney cancer subtypes is an urgent challenge. It has been confirmed by researchers in the biomedical field that miRNA dysregulation can cause cancer. In this paper, we propose a machine learning approach for the classification of kidney cancer subtypes using miRNA genome data. Through empirical studies we found 35 miRNAs that possess distinct key features that aid in kidney cancer subtype diagnosis. In the proposed method, Neighbourhood Component Analysis (NCA) is employed to extract discriminative features from miRNAs and Long Short Term Memory (LSTM), a type of Recurrent Neural Network, is adopted to classify a given miRNA sample into kidney cancer subtypes. In the literature, only a couple of kidney subtypes have been considered for classification. In the experimental study, we used the miRNA quantitative read counts data, which was provided by The Cancer Genome Atlas data repository (TCGA). The NCA procedure selected 35 of the most discriminative miRNAs. With this subset of miRNAs, the LSTM algorithm was able to group kidney cancer miRNAs into five subtypes with average accuracy around 95% and Matthews Correlation Coefficient value around 0.92 under 10 runs of randomly grouped 5-fold cross-validation, which were very close to the average performance of using all miRNAs for classification.
An Attention-Based Recommender System to Predict Contextual Intent Based on Choice Histories across and within Sessions
Authors: Huang Ruo , McIntyre Shelby , Song Meina , E Haihong , Ou Zhonghong
Published: November 2018

Recent years have witnessed the growth of recommender systems, with the help of deep learning techniques. Recurrent Neural Networks (RNNs) play an increasingly vital role in various session-based recommender systems, since they use the user’s sequential history to build a comprehensive user profile, which helps improve the recommendation. However, a problem arises regarding how to be aware of the variation in the user’s contextual preference, especially the short-term intent in the near future, and make the best use of it to produce a precise recommendation at the start of a session. We propose a novel approach named Attention-based Short-term and Long-term Model (ASLM), to improve the next-item recommendation, by using an attention-based RNNs integrating both the user’s short-term intent and the long-term preference at the same time with a two-layer network. The experimental study on three real-world datasets and two sub-datasets demonstrates that, compared with other state-of-the-art methods, the proposed approach can significantly improve the next-item recommendation, especially at the start of sessions. As a result, our proposed approach is capable of coping with the cold-start problem at the beginning of each session.
A Coalition Formation Game Approach for Efficient Cooperative Multi-UAV Deployment
Authors: Ruan Lang , Chen Jin , Guo Qiuju , Jiang Han , Zhang Yuli , Liu Dianxiong
Published: November 2018

Unmanned aerial vehicle (UAV) cooperative control has been an important issue in UAV-assisted sensor networks, thanks to the considerable benefit obtained from the cooperative mechanism of UAVs being applied as a flying base station. In a coverage scenarios, the trade-off between coverage and transmission performance often makes deployment of UAVs fall into a dilemma, since both indexes are related to the distance between UAVs. To address this issue, UAV coverage and data transmission mechanism is analyzed in this paper; then, an efficient multi-UAV cooperative deployment model is proposed. The problem is modeled as a coalition formation game (CFG). The CFG with Pareto order is proved to have a stable partition. Then, an effective approach consisting of coverage deployment and coalition selection is designed, wherein UAVs can decide strategies cooperatively to achieve better coverage performance. Combining analysis of game approach, coalition selection and the position deployment algorithm based on Pareto order (CSPDA-PO) is designed to execute coverage deployment and coalition selection. Finally, simulation results are shown to validate the proposed approach based on an efficient multi-UAV cooperative deployment model.
Titanium Dioxide Photocatalysis
Authors: Dal Santo Vladimiro , Naldoni Alberto
Published: November 2018

Dating from the seminal work of Fujishima et al. [...]
The Magnetic Properties of 1111-type Diluted Magnetic Semiconductor (La1−xBax)(Zn1−xMnx)AsO in the Low Doping Regime
Authors: Zhi Guoxiang , Wang Kai , Zhang Haojie , Ding Cui , Guo Shengli , Gu Yilun , Fu Licheng , Ning F. L.
Published: November 2018

We investigated the magnetic properties of (La 1 − x Ba x )(Zn 1 − x Mn x )AsO with x varying from 0.005 to 0.05 at an external magnetic field of 1000 Oe. For doping levels of x ≤ 0.01, the system remains paramagnetic down to the lowest measurable temperature of 2 K. Only when the doping level increases to x = 0.02 does the ferromagnetic ordering appear. Our analysis indicates that antiferromagnetic exchange interactions dominate for x ≤ 0.01, as shown by the negative Weiss temperature fitted from the magnetization data. The Weiss temperature becomes positive, i.e., ferromagnetic coupling starts to dominate, for x ≥ 0.02. The Mn-Mn spin interaction parameter ∣ 2 J / k B ∣ is estimated to be in the order of 10 K for both x ≤ 0.01 (antiferromagnetic ordered state) and x ≥ 0.02 (ferromagnetic ordered state). Our results unequivocally demonstrate the competition between ferromagnetic and antiferromagnetic exchange interactions in carrier-mediated ferromagnetic systems.
Preparation and Behavior of Bamboo Fiber-Reinforced Polydimethylsiloxane Composite Foams during Compression
Authors: Zubaidah Isa , Norfatriah Abdullah , Zatul Amali Serbini Noorul , Zuruzi Abu Samah
Published: November 2018

This study investigates the mechanical properties of bamboo fiber-reinforced polydimethylsiloxane (BF-PDMS) foams with up to 3.4% (by mass) fiber during compression. Pristine PDMS foams and BF-PDMS composite foams were fabricated using a sugar leaching method. Compression test results of pristine PDMS and BF-PDMS composite foams display plateau and densification regions. Predictions of a modified phenomenological foam (PF) model based on Maxwell and Kelvin–Voight models are in good agreement with compression test results. Stiffness coefficients were extracted by fitting results of compression tests to the modified PF model. Spring and densification coefficients of BF-PDMS composite foams are 2.5- and 15-fold greater than those of pristine PDMS foams, respectively. Strains corresponding to onset of densification computed using extracted coefficients were 35% and 25% for pristine PDMS foams and BF-PDMS composite foams, respectively. Compressing foams at 6.0 and 0.5 mm/min results in highest and lowest compressive stress, respectively. Insights from this study are useful in many areas such as environmental protection, pressure sensing, and energy where PDMS composite foams will find applications.
Role of the Mre11 Complex in Preserving Genome Integrity
Authors: Oh Julyun , Symington Lorraine S.
Published: November 2018

DNA double-strand breaks (DSBs) are hazardous lesions that threaten genome integrity and cell survival. The DNA damage response (DDR) safeguards the genome by sensing DSBs, halting cell cycle progression and promoting repair through either non-homologous end joining (NHEJ) or homologous recombination (HR). The Mre11-Rad50-Xrs2/Nbs1 (MRX/N) complex is central to the DDR through its structural, enzymatic, and signaling roles. The complex tethers DNA ends, activates the Tel1/ATM kinase, resolves protein-bound or hairpin-capped DNA ends, and maintains telomere homeostasis. In addition to its role at DSBs, MRX/N associates with unperturbed replication forks, as well as stalled replication forks, to ensure complete DNA synthesis and to prevent chromosome rearrangements. Here, we summarize the significant progress made in characterizing the MRX/N complex and its various activities in chromosome metabolism.
Effects of Hydraulic Loading Rate on Nutrients Removal from Anaerobically Digested Swine Wastewater by Multi Soil Layering Treatment Bioreactor
Authors: Guo Junyuan , Zhou Yuling , Yang Yijin , Chen Cheng , Xu Jiajing
Published: November 2018

A multi soil layering (MSL) treatment bioreactor was developed aiming at nutrients removal from anaerobically digested swine wastewater (ADSW). The start-up of the MSL bioreactor and its performance in nutrients removal at different hydraulic loading rate (HLR) were investigated. Results showed that the MSL bioreactor was successfully started up after operation for 28 days, and at this time, the removal efficiencies of ammonia-N, total nitrogen (TN) and total phosphorus (TP) in the ADSW reached 63.6%, 58.5%, and 46.5%, respectively. The MSL bioreactor showed a stable performance during the whole working process with varying HLR from 80 to 200 L/(m2·day). Maximum removal efficiencies of ammonia-N, TN and TP were obtained at 160 L/(m2·day), and was appeared as 94.2%, 94.4%, and 92.5%, respectively. It was worth noting that iron scraps were the key factor that enhanced the independent capability of the MSL bioreactor in TP removal, because there was only 21.4–25.8% of the TP was removed when the MSL bioreactor run with no iron addition.
Measuring Inequality of Opportunity in Access to Quality Basic Education: A Case Study in Florida, US
Authors: Prieto Lydia M. , Flacke Johannes , Aguero-Valverde Jonathan , Van Maarseveen Martin
Published: November 2018

Providing all children equal access to essential services, such as primary education, has been set as a priority in the Sustainable Development Goals (SDG)’ agenda during the last two decades. Yet the Global Education Monitoring report in 2016 reveals that wide disparities between the rich and the poor persist in access to education of high quality. This study uses the Human Opportunity Index (HOI) to examine the equality of opportunity in access to basic education of high quality. By using enrollment and admission data from a case study in a large school district in the US in 2015/2016, this research evaluates the capacity of the HOI, in order to reveal disparities in access to school opportunities and examines how much of this inequality is explained by families’ pre-determined circumstances. The way of analyzing equality is by disaggregating applications’ data into circumstance groups, according to gender, geography, race/ethnicity, and other criteria. To capture the contribution of each circumstance to inequality of opportunity, the Shapley decomposition method is used. Findings show that the HOI is capable of systematically monitoring and examining existing admission policies and identifying inequality problems. Furthermore, the analysis of the contribution of each circumstance group can reveal admission criteria that have the potential to harm the educational opportunities for children. This assessment should provide valuable insights into the capability of the indicators to reveal where policy intervention is necessary and supply points of view on how policy can be improved.
Ureido Derivatives of Neoabietic Acid
Authors: Gao Xinyu , Feng Niping , Zi Yuhan , Cao Jianguo , Huang Guozheng
Published: November 2018

A series of ureido derivatives of neoabietic acid were synthesized by application of Curtius rearrangement reaction to neoabietic acid and amines. Structure characterization of these compounds was done by 1H-NMR, 13C-NMR and HRMS spectral analysis.
Characterization of the Microstructure, Local Macro-Texture and Residual Stress Field of Commercially Pure Titanium Grade 2 Prepared by CONFORM ECAP
Authors: Németh Gergely , Horváth Klaudia , Hervoches Charles , Cejpek Petr , Palán Jan , Duchek Michal , Máthis Kristián
Published: November 2018

The paper investigated the residual strain and stress distribution, microstructure, and macro-texture along the transverse direction of commercially pure titanium grade 2 samples prepared by the CONFORM ECAP technique. This method belongs to the severe plastic deformation methods; hence, it could be assumed that residual stress fields would be present in the work-pieces. Residual stresses cannot be directly measured; thus, neutron diffraction measurements, Electron back-scatter diffraction (EBSD) investigations, and local X-ray macro-texture measurements were performed in different regions of the sample to determine the data for the residual stress calculation. The calculation was based on the modified Kröner model. Neutron diffraction strain scans and residual stress calculations revealed that symmetrical residual strain and stress gradients with compression character were present in the axial and hoop direction after one and two passes. Asymmetric distribution of the residual strains and stresses remained after the third pass of the CONFORM ECAP. EBSD investigations showed that after the first pass, significant grain refinement occurred; however, further passes did not cause any dramatic grain refinement. X-ray texture measurements revealed that local macro-texture was dependent on the number of passes of the CONFORM ECAP and on the investigated area in the samples.
Nanoindentation and TEM to Study the Cavity Fate after Post-Irradiation Annealing of He Implanted EUROFER97 and EU-ODS EUROFER
Authors: Roldán Marcelo , Fernández Pilar , Rams Joaquín , Sánchez Fernando José , Gómez-Herrero Adrián
Published: November 2018

The effect of post-helium irradiation annealing on bubbles and nanoindentation hardness of two reduced activation ferritic martensitic steels for nuclear fusion applications (EUROFER97 and EU-ODS EUROFER) has been studied. Helium-irradiated EUROFER97 and EU-ODS EUROFER were annealed at 450 °C for 100 h in an argon atmosphere. The samples were tested by nanoindentation and studied by transmission electron microscopy extracting some focused ion beam lamellae containing the whole implanted zone (≈50 µm). A substantial increment in nanoindentation hardness was measured in the area with higher helium content, which was larger in the case of EUROFER97 than in EU-ODS EUROFER. In terms of microstructure defects, while EU-ODS EUROFER showed larger helium bubbles, EUROFER97 experienced the formation of a great population density of them, which means that the mechanism that condition the evolution of cavities for these two materials are different and completely dependent on the microstructure.
Application of A Novel Potential Probiotic Lactobacillus paracasei Strain Isolated from Kefir Grains in the Production of Feta-Type Cheese
Authors: Mantzourani Ioanna , Terpou Antonia , Alexopoulos Athanasios , Chondrou Pelagia , Galanis Alex , Bekatorou Argyro , Bezirtzoglou Eugenia , Koutinas Athanasios A , Plessas Stavros
Published: November 2018

In the present study 38 lactic acid bacteria strains were isolated from kefir grains and were monitored regarding probiotic properties in a series of established in vitro tests, including resistance to low pH, resistance to pepsin and pancreatin, and tolerance to bile salts, as well as susceptibility against common antibiotics. Among them, the strain SP3 displayed potential probiotic properties. Multiplex PCR analysis indicated that the novel strain belongs to the paracasei species. Likewise, the novel strain (Lactobacillus paracasei SP3) was applied as a starter culture for Feta-type cheese production. Feta-type cheese production resulted in significantly higher acidity; lower pH; reduced counts of coliforms, yeasts and fungi; and improved quality characteristics compared with cheese samples produced with no starter culture. Finally, it is highlighted that the application of the novel strain led to Feta-type cheese production with improved overall quality and sensory characteristics.
Geodynamic Significance of the Mesoproterozoic Magmatism of the Udzha Paleo-Rift (Northern Siberian Craton) Based on U-Pb Geochronology and Paleomagnetic Data
Authors: Malyshev Sergey V. , Pasenko Aleksander M. , Ivanov Alexei V. , Gladkochub Dmitrii P. , Savatenkov Valery M. , Meffre Sebastien , Abersteiner Adam , Kamenetsky Vadim S. , Shcherbakov Vasiliy. D.
Published: November 2018

The emplacement age of the Great Udzha Dyke (northern Siberian Craton) was determined by the U-Pb dating of apatite using laser ablation inductively coupled plasma mass spectrometry (LA-ICPMS). This produced an age of 1386 ± 30 Ma. This dyke along with two other adjacent intrusions, which cross-cut the sedimentary units of the Udzha paleo-rift, were subjected to paleomagnetic investigation. The paleomagnetic poles for the Udzha paleo-rift intrusions are consistent with previous results published for the Chieress dyke in the Anabar shield of the Siberian Craton (1384 ± 2 Ma). Our results suggest that there was a period of intense volcanism in the northern Siberian Craton, as well as allow us to reconstruct the apparent migration of the Siberian Craton during the Mesoproterozoic.
In Cellulo Protein-mRNA Interaction Assay to Determine the Action of G-Quadruplex-Binding Molecules
Authors: Prado Martins Rodrigo , Findakly Sarah , Daskalogianni Chrysoula , Teulade-Fichou Marie-Paule , Blondel Marc , Fåhraeus Robin
Published: November 2018

Protein-RNA interactions (PRIs) control pivotal steps in RNA biogenesis, regulate multiple physiological and pathological cellular networks, and are emerging as important drug targets. However, targeting of specific protein-RNA interactions for therapeutic developments is still poorly advanced. Studies and manipulation of these interactions are technically challenging and in vitro drug screening assays are often hampered due to the complexity of RNA structures. The binding of nucleolin (NCL) to a G-quadruplex (G4) structure in the messenger RNA (mRNA) of the Epstein-Barr virus (EBV)-encoded EBNA1 has emerged as an interesting therapeutic target to interfere with immune evasion of EBV-associated cancers. Using the NCL-EBNA1 mRNA interaction as a model, we describe a quantitative proximity ligation assay (PLA)-based in cellulo approach to determine the structure activity relationship of small chemical G4 ligands. Our results show how different G4 ligands have different effects on NCL binding to G4 of the EBNA1 mRNA and highlight the importance of in-cellulo screening assays for targeting RNA structure-dependent interactions.
Iso-α-Acids, the Bitter Components of Beer, Suppress Microglial Inflammation in rTg4510 Tauopathy
Authors: Ano Yasuhisa , Takaichi Yuta , Uchida Kazuyuki , Kondo Keiji , Nakayama Hiroyuki , Takashima Akihiko
Published: November 2018

Due to the growth in aging populations, prevention for cognitive decline and dementia are in great demand. We previously demonstrated that the consumption of iso-α-acids (IAA), the hop-derived bitter compounds in beer, prevents inflammation and Alzheimer’s disease pathology in model mice. However, the effects of iso-α-acids on inflammation induced by other agents aside from amyloid β have not been investigated. In this study, we demonstrated that the consumption of iso-α-acids suppressed microglial inflammation in the frontal cortex of rTg4510 tauopathy mice. In addition, the levels of inflammatory cytokines and chemokines, including IL-1β and MIP-1β, in the frontal cortex of rTg4510 mice were greater than those of wild-type mice, and were reduced in rTg4510 mice fed with iso-α-acids. Flow cytometry analysis demonstrated that the expression of cells producing CD86, CD68, TSPO, MIP-1α, TNF-α, and IL-1β in microglia was increased in rTg4510 mice compared with wild-type mice. Furthermore, the expression of CD86- and MIP-1α-producing cells was reduced in rTg4510 mice administered with iso-α-acids. Moreover, the consumption of iso-α-acids reduced the levels of phosphorylated tau in the frontal cortex. Collectively, these results suggest that the consumption of iso-α-acids prevents the inflammation induced in tauopathy mice. Thus, iso-α-acids may help in preventing inflammation-related brain disorders.