bluuebunny/crossref_metadata_2025 huggingface dataset:
CROP CLASSIFICATION ON SINGLE DATE SENTINEL-2 IMAGERY USING RANDOM FOREST AND SUPPOR VECTOR MACHINE
Authors: Saini R. , Ghosh S. K.
Published: November 2018

Abstract. Mapping of the crop using satellite images is a challenging task due to complexities within field, and having the similar spectral properties with other crops in the region. Recently launched Sentinel-2 satellite has thirteen spectral bands, fast revisit time and resolution at three different level (10 m, 20 m, 60 m), as well as the free availability of data, makes it a good choice for vegetation mapping. This study aims to classify crop using single date Sentinel-2 imagery in the Roorkee, district Haridwar, Uttarakhand, India. Classification is performed by using two most popular and efficient machine learning algorithms: Random Forest (RF) and Support Vector Machine (SVM). In this study, four spectral bands, i.e., Near Infrared, Red, Green, and Blue of Sentinel-2 satellite are stacked for the classification. Results show that overall accuracy of the classification achieved by RF and SVM using Sentinel-2 imagery are 84.22% and 81.85% respectively. This study demonstrates that both classifiers performed well by setting an optimal value of tuning parameters, but RF achieved 2.37% higher overall accuracy over SVM. Analysis of the results states that the class specific accuracies of High-Density Forest attain the highest accuracy whereas Fodder class reports the lowest accuracy. Fodder achieve lowest accuracy because there is an intermixing of pixels among Wheat and Fodder crops. In this study, it is found that RF shows better potential in classifying crops more accurately in comparison to SVM and Sentinel-2 has great potential in vegetation mapping domain in remote sensing.
COMPARISON OF SUPERVISED CLASSIFICATION TECHNIQUES WITH ALOS PALSAR SENSOR FOR ROORKEE REGION OF UTTARAKHAND, INDIA
Authors: Shakya A. K. , Ramola A. , Kandwal A. , Prakash R.
Published: November 2018

Abstract. The Advanced Land Observing Satellite (ALOS) is developed by the Japanese Aerospace Exploration Agency (JAXA) which was launched in the year 2006 for the Earth observation and exploration purpose. The ALOS was carrying PRISM, AVNIR-2 and PALSAR sensors for this purpose. PALSAR is L-Band synthetic aperture radar (SAR). The PALSAR sensor is designed in a way that it can work in all weather conditions with a resolution of 10 meters. In this research work we have made an investigation on the accuracy obtained from the various supervised classification techniques. We have compared the accuracy obtained by classifying the ALOS PALSAR data of the Roorkee region of Uttarakhand, India. The training ROI’S (Region of Interest) are created manually with the assistance of ArcGIS Earth and for the testing purpose, we have used the Global positioning system (GPS) coordinates of the region. Supervised classification techniques included in this comparison are Parallelepiped classification (PC), Minimum distance classification (MDC), Mahalanobis distance classification (MaDC), Maximum likelihood classification (MLC), Spectral angle mapper (SAM), Spectral information divergence (SID) and Support vector machine (SVM). Later, through the post classification confusion matrix accuracy assessment test is performed and the corresponding value of the kappa coefficient is obtained. In the result, we have concluded MDC as best in term of overall accuracy with 82.3634% and MLC with a kappa value of 0.7591. Finally, a peculiar relationship is developed in between classification accuracy and kappa coefficient.
OBJECT ORIENTED CLASSIFICATION AND FEATURE EXTRACTION FOR PARTS OF EAST DELHI USING HYBRID APPROACH
Authors: Kumar P. , Ravindranath S. , Raj K. G.
Published: November 2018

Abstract. Rapid urbanization of Indian cities requires a focused attention with respect to preparation of Master Plans of cities. Urban land use/land cover from very high resolution satellite data sets is an important input for the preparation of the master plans of the cities along with extraction of transportation network, infrastructure details etc. Conventional classifiers, which are pixel based do not yield reasonably accurate urban land use/land cover classification of very high resolution satellite data (usually merged images of Panchromatic & Multispectral). Object Based Image Classification techniques are being used to generate urban land use maps with ease which is GIS compatible while using very high resolution satellite data sets. In this study, Object Based Image Analysis (OBIA) has been used to create broad level urban Land Use / Land Cover (LU/LC) map using high resolution ResourceSat-2 LISS-4 and Cartosat-1 pan-sharpened image on the study area covering parts of East Delhi City. Spectral indices, geometric parameters and statistical textural methods were used to create algorithms and rule sets for feature classification. A LU/LC map of the study area comprising of 4 major LU/LC classes with its main focus on separation of barren areas from built up areas has been attempted. The overall accuracy of the result obtained is estimated to be approximately 70%.
HIGH RESOLUTION INTERFEROMETRIC DIGITAL ELEVATION MODEL GENERATION AND VALIDATION
Authors: Malik K. , Kumar D.
Published: November 2018

Abstract. In this paper high-resolution DEM generation has been attempted using the Cosmo-skymed data over the New Delhi, India area. The study area is an urban area filled with lots of building and settlement which was helpful to get the stable point in the time series images data. This DEM generation is based on the highly stable permanents scatter candidate (PSC). This PSC was selected on the basis of amplitude stability index which was generated/calculated using the 25 images of the cosmo-skymed acquired over the time. A sufficient number of field GPS data has been used for result validation. Interpolated output DEM at 10-meter resolution has also been compared with the available SRTM and ASTER DEM for further quality estimation. Presented result demonstrate the capabilities of the technique in constructing a high-resolution quality DEM.
GOPLUS GEOSPATIAL DATA SERVICE FOR INDUSTRIAL AND INFRASTRUCTURE DEVELOPMENT IN ODISHA, INDIA
Authors: Mishra D. , Sanabada M. K. , Sahu S. , Das S. , Tripathi S.
Published: November 2018

Abstract. Technological advancement is the key driver for economic growth and sustainable development. Geospatial Technologies applications and tools available today are being used for improved performance of a country towards all major verticals of economy. In a bid to attract investment and ensure hassle-free land acquisition for major projects, the Odisha government decided to create land banks for industrial development using advanced technology applications. In the present paper Geo-informatics, ICT and space technology inputs are used to create Web-GIS based solutions for Land Bank creation. High resolution ortho-images, geo-referenced digital revenue cadastral datasets, Revenue RoR data, satellite derived spatial datasets and utility attribute datasets of state department are used to create the Web-GIS Odisha land bank. Emphasis was given to develop a portal that offers an interactive platform and provide detailed information with regards to availability of industrial plots or land plot clusters based on location specific attributes in terms of connectivity, rail and road linkages and other physical and social infrastructure available in the vicinity. Conversely, the developed system helps an investor to identify suitable land plots in the vicinity of the utility, sub-utility selected by an investor as per his requirement. It enables prospective investors to identify suitable land in Odisha from the comfort of their offices. A prospective investor can define preferred parameters such as the district, size of land required, facilities available in the vicinity and proximity to existing developed infrastructure etc. based on which the portal identifies and returns information regarding the suitable land parcels available in the State. The outputs are web-hosted in public domain for use by all stakeholders interactively under GOPLUS (Govt. Odisha Portal for Land use and Services) through gis.investodisha.org.
From sea ice to seals: a moored marine ecosystem observatory in the Arctic
Authors: Hauri Claudine , Danielson Seth , McDonnell Andrew M. P. , Hopcroft Russell R. , Winsor Peter , Shipton Peter , Lalande Catherine , Stafford Kathleen M. , Horne John K. , Cooper Lee W. , Grebmeier Jacqueline M. , Mahoney Andrew , Maisch Klara , McCammon Molly , Statscewich Hank , Sybrandy Andy , Weingartner Thomas
Published: November 2018

Abstract. Although Arctic marine ecosystems are changing rapidly,
year-round monitoring is currently very limited and presents multiple
challenges unique to this region. The Chukchi Ecosystem Observatory (CEO)
described here uses new sensor technologies to meet needs for continuous,
high-resolution, and year-round observations across all levels of the
ecosystem in the biologically productive and seasonally ice-covered Chukchi
Sea off the northwest coast of Alaska. This mooring array records a broad
suite of variables that facilitate observations, yielding better
understanding of physical, chemical, and biological couplings, phenologies,
and the overall state of this Arctic shelf marine ecosystem. While cold
temperatures and 8 months of sea ice cover present challenging conditions for
the operation of the CEO, this extreme environment also serves as a rigorous
test bed for innovative ecosystem monitoring strategies. Here, we present
data from the 2015–2016 CEO deployments that provide new perspectives on the
seasonal evolution of sea ice, water column structure, and physical
properties, annual cycles in nitrate, dissolved oxygen, phytoplankton blooms,
and export, zooplankton abundance and vertical migration, the occurrence of
Arctic cod, and vocalizations of marine mammals such as bearded seals. These
integrated ecosystem observations are being combined with ship-based
observations and modeling to produce a time series that documents biological
community responses to changing seasonal sea ice and water temperatures while
establishing a scientific basis for ecosystem management.
Modelling the fate of surface melt on the Larsen C Ice Shelf
Authors: Buzzard Sammie , Feltham Daniel , Flocco Daniela
Published: November 2018

Abstract. Surface melt lakes lower the albedo of ice shelves, leading to additional
surface melting. This can substantially alter the surface energy balance and
internal temperature and density profiles of the ice shelf. Evidence suggests
that melt lakes also played a pivotal role in the sudden collapse of the
Larsen B Ice Shelf in 2002. Here a recently developed, high-physical-fidelity model accounting for the
development cycle of melt lakes is applied to the Larsen C Ice Shelf,
Antarctica's most northern ice shelf and one where melt lakes have been
observed. We simulate current conditions on the ice shelf using weather
station and reanalysis data and investigate the impacts of potential future
increases in precipitation and air temperature on melt lake formation, for
which
concurrent increases lead to an increase in lake depth. Finally, we assess the viability in future crevasse propagation through the
ice shelf due to surface meltwater accumulation.
What historical landfast ice observations tell us about projected ice conditions in Arctic archipelagoes and marginal seas under anthropogenic forcing
Authors: Laliberté Frédéric , Howell Stephen E. L. , Lemieux Jean-François , Dupont Frédéric , Lei Ji
Published: November 2018

Abstract. Arctic landfast ice extent and duration are examined from observations, ice assimilations,
ocean reanalyses and coupled models. From observations and
assimilations, it is shown that in areas where landfast ice conditions last
more than 5 months the first-year ice typically grows to more than 2 m and is
rarely less than 1 m. The observed spatial distribution of landfast ice
closely matches assimilation products but less so for ocean reanalyses and
coupled models. Although models generally struggle to represent the landfast
ice necessary to emulate the observed import/export of sea ice in regions
favourable to landfast ice conditions, some do exhibit both a realistic
climatology and a realistic decline of landfast ice extent under an
anthropogenic forcing scenario. In these more realistic simulations,
projections show that an extensive landfast ice cover should remain for at
least 5 months of the year, well into the end of the 21st century. This is in
stark contrast with the simulations that have an unrealistic emulation of
landfast ice conditions. In these simulations, slow and packed ice conditions
shrink markedly over the same period. In all simulations and in areas with
landfast ice that lasts more than 5 months, the end-of-winter sea ice thickness
remains between 1 and 2 m, well beyond the second half of the century. It is
concluded that in the current generation of climate models, projections of
winter sea ice conditions in the Canadian Arctic Archipelago and the Laptev
Sea are overly sensitive to the representation of landfast ice conditions and
that ongoing development in landfast ice parameterization will likely better
constrain these projections.
Dos procesos de la Corte del Vicario de Barcelona: el asalto a Joan de Palomar (1426)
Authors: Álvarez Gómez Daniel
Published: November 2018

A partir de dos procesos en la Corte del vicario de Barcelona, en 1426, de los que se conservan sendas copias en el Archivo de la Corona de Aragón, se estudia un episodio de la vida del jurista Narcís de Sant Dionís. De su entorno familiar parte una agresión contra Joan de Palomar porque este había aceptado la auditoría de cuentas de la Diputación tras quedar vacante por la destitución previa de Sant Dionís. Los procesos son instruidos contra elementos mantenidos por Sant Dionís o cercanos a él, como su sobrino el vicario homónimo de Gerona, responsable del ataque.
Ejecutorias interesantes de la Real Chancillería de Granada (1532-1557)
Authors: Porras Arboledas Pedro Andrés
Published: November 2018

Tras haber invertido el último decenio en revisar los contenidos de los primeros 690 legajos del Registro General del Sello de la Chancillería de Granada, el autor pone a disposición de la comunidad científica un total de 400 regestas de ejecutorias libradas por dicha Audiencia durante los 25 años finales del reinado del Emperador Carlos.
On the Strategies of Enhancing Students’ Cultural Awareness in College English Teaching
Authors: Wang Guoqiao
Published: November 2018

Lack of cultural awareness and insufficient cultural background knowledge directly obstruct students’ learning competence in college English teaching. Therefore, it’s of great importance to enhance students’ cultural awareness and develop their background knowledge about the target culture. This paper intends to illustrate the influence of cultural background knowledge deficiency on English learning, analyze the possible causes of students’ lack of cultural background knowledge, and suggest approaches to enriching students’ background knowledge of the target culture.
Evaluating Traveller English Textbook Series From Saudi Secondary School EFL Teachers’ Perspectives
Authors: Aljouei Khawlah F. , Alsuhaibani Yasser A.
Published: November 2018

The aim of this study is to evaluate the Traveller textbook series from teachers’ perspectives. Areas of evaluation are the textbooks’ activities, skills, and appropriateness. The study implemented a mixed-methods approach using two instruments: content analysis, and questionnaire. The data collection of the content is carried out by analyzing the content of the six textbooks, from Traveller 1 to Traveller 6; the questionnaire themes were used for the content analysis. 94 teachers responded the questionnaire. The results show that textbook is effective according to the layout, accessibility, activities and skills but teachers hold mixed perspectives regarding its appropriateness. Moreover, results revealed that there might be an association between the teachers’ attitudes and the teachers’ training and class size.
A Sub-Model Theorem for Ordinary Least Squares
Authors: Watagoda Lasanthi C. R. Pelawa
Published: November 2018

Variable selection or subset selection is an important step in the process of model fitting. There are many ways to select the best subset of variables including Forward selection, Backward elimination, etcetera. Ordinary least squares (OLS) is one of the most commonly used methods of fitting the final model. Final sub-model can perform poorly if the variable selection process failed to choose the right number of variables. This paper gives a new theorem and a mathematical proof to illustrate the reason for the poor performances, when using the least squares method after variable selection.
The Impact of Inflation on Investment: The Non-Linear Nexus and Inflation Threshold in Jordan
Authors: Asab Noura Abu , Al-Tarawneh Alaaeddin
Published: November 2018

This paper highlights the nonlinear relationship between inflation and investment in Jordan. Applying a threshold model over the period 1980-2016, the results reveal that investment is retracted by inflation when inflation rate reaches a threshold of 10%. This suggests that inflation rates should remain below 10% to sustain and improve investment levels. 
KARAKTERISTIKE ZEMLJIŠTA NA KRŠU I NAČINI NJEGOVOG KORIŠTENJA
Authors: Šarić Taib , Lugonić Habiba
Published: November 2018

Glavni principi pravilnog ili održivog korištenja zemljišta na kršu su sljedeći: pravilan izbor usjeva i način sjetve, način, dubina i vrijeme obrade, đubrenje i malčovanje. S obzirom da se većina zemljišta na kršu nalazi na manjem ili većem nagibu, ona su izložena eroziji, prvenstveno vodom. U sprečavanju erozije najvažniju ulogu ima izbor usjeva. Na nagibima ne treba sijati usjeve rijetkog sklopa, kao što su kukuruz, krompir, suncokret i većina povrća, jer oni svojom masom nedovoljno pokrivaju i štite zemljište od udara kišnih kapi i od odnošenja zemlje erozijom. Na jačim nagibima najbolje je sijati višegodišnje trave i leguminoze. Na umjerenim i manjim nagibima mogu se sijati strna žita. Pravac sjetve na svim nagibima treba da bude po izohipsama, tj. vodoravno, kako bi redovi usjeva predstavljali prepreku toku vode i odnošenju zemlje vodom niz nagib (eroziji). Obrada zemljišta na nagibima ne treba da bude vrlo duboka. Dok se u ravnicama preporučuje jesenje duboko oranje za proljetne kulture, na nagibima ne treba orati u jesen za usjeve koji će se sijati u proljeće, jer bi voda erozijom odnijela mnogo zemlje. Proljetno oranje treba da bude pliće od jesenjeg. Broj operacija obrade zemljišta na nagibima može se smanjiti u odnosu na ravnicu. Karakteristike zemljišta na kršu su prije svega teža pristupačnost, otežana primjena savremenih agrotehničkih mjera. Parcele su razdvojene, bez nekog pravilnog kontinuiteta i reda, dosta su sitne i male površine. Dugi su procesi njihovog stvaranja i podležna su erozijama. Krška zemljišta su dosta vodopropusna, što dovodi do ispiranja. Tako zemljište na kršu može nestati za kratko vrijeme.
BOROVI (PINUS SP.) U HORTIKULTURI I ŠUMARSTVU NA KRŠU
Authors: Dorbić Boris , Španjol Željko
Published: November 2018

Rod borova je izrazito raznolik, broji oko 90 vrsta s velikim brojem varijeteta i hibrida. Borovi kao šumske vrste predstavljaju značajnu biološku, gospodarsku i hortikulturnu vrijednost. Na području Dalmacije borovi su u prošlosti korišteni i kao drvna građa te za dobivanje smole. Svojim karakterističnim izgledom daju autentičnost mediteranskom pejsažu. Posjeduju dekorativne osobine poput ukrasne kore, habitusa, krošnje i iglica, koje mogu biti od svjetlo do tamnozelene boje, ovisno o vrsti. Na kršu služe za pošumljavanje goleti i degradiranih terena. Dobro uspijevaju na tlima sa slabim bonitetom te daju dobru proizvodnu sposobnost. U svrhu uzgoja borova za hortikulturne namjene, oni se trebaju uzgajati na kvalitetnijim pedološkim podlogama. U radu se daju biološke, hortikulturne i gospodarske karakteristike tri vrste bora Pinus pinea L-pinjol, Pinus halepensis Mill-alepski bor i Pinus nigra Arnold.-crni bor, koji se koriste na području krškog dijela Hrvatske.
Application of a paste-type acellular dermal matrix for coverage of chronic ulcerative wounds
Authors: Jeon Minseok , Kim So Young
Published: November 2018

Background Chronic wounds occur due to failure of the normal healing process, associated with a lack of deposition of cellular components and a suitable microenvironment such as the extracellular matrix (ECM). Acellular dermal matrix (ADM) is viewed as an ECM substitute, and a paste-type ADM has recently been introduced. We hypothesized that CGPaste, an injectable paste-type ADM, could serve as a scaffold and promote wound healing.

Methods We retrospectively studied seven patients in whom CGPaste was applied between 2017 and 2018, who had pressure ulcers, necrotizing fasciitis, diabetic foot ulcers, traumatic defects, and osteomyelitis. The goal of applying CGPaste was to achieve complete wound healing with re-epithelialization or growth of granulation tissue, depending upon the wound bed status. CGPaste was injected based on the wound size along with the application of a dressing.

Results Four of the seven patients showed granulation tissue on their wound bed, while the other three patients had a bony wound bed. The mean wound area was 453.57 mm2 and the depth was 10.71 mm. Wound healing occurred in five of the seven patients (71.43%). The mean duration of complete healing was 2.4 weeks. Two patients showed failure due to paste absorption (29.57%); these patients had wound beds comprising bone with relatively large and deep wounds (40×30 and 30×20 mm2 in area and 15 and 10 mm in depth).

Conclusions CGPaste is an effective option for coverage of small and deep chronic wounds for which a flap operation or skin grafting is unfeasible.
Reported and potential bioluminescent species in Lithuania
Authors: Malakauskienė Asta
Published: November 2018

Bioluminescent species are those producing and emitting light by chemical reactions and using it for a wide range of functions important for survival, hunting, camouflage, mating, recognition, and communication. Studies on Lithuanian bioluminescent species biodiversity are scarce. The aim of this study was to review available information about reported and potential (found near the borders of the neighbouring countries) bioluminescent (fireflies, fungi, centipedes, springtails), and luminescent (mosses) species in Lithuania. Available sources of literature on the diversity of Lithuanian, Latvian, Polish, and Belarusian bioluminescent species were studied, and folklore and verbal evidence of seen bioluminescent species were analysed as well. All collected information was generalized and presented as a list of Lithuanian bioluminescent species. The results showed that representatives of 26 different bioluminescent and one luminescent species may glow in the dark in Lithuania depending on the season, temperature, humidity, pH and oxygen presence in their environment: two reported and one potential (immigrating from Poland and Belarus) species of fireflies; recently reported one species of bioluminescent centipedes from the family of Geophilus; one potential species of bioluminescent springtail (reported in Latvia and Poland); 21 reported species of bioluminescent fungi; one reported species of luminescent moss. Glowing must be confirmed for two fungi species mentioned in folklore, also one species is found that does not glow in Lithuania but is bioluminescent in North America. Specimens of Chlorociboria sp. and Xylaria hypoxylon found in the Botanical Garden of Vytautas Magnus University did not glow, while Armillaria mellea glowed brightly emitting green light.
A trajetória singular de um psicanalista: apresentação de Luiz Eduardo Prado de Oliveira
Authors: Fonseca Eduardo Ribeiro da , Bocca Francisco Verardi , Armiliato Vinícius
Published: November 2018

Entrevista
Editorial
Authors: Peruzzo Júnior Léo , Oliveira Jelson , Valverde Antonio
Published: November 2018

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Os livros didáticos e a formação da identidade de gênero nas escolas étnicas polonesas do Paraná nos anos de 1930
Authors: Renk Valquíria Elita
Published: November 2018

Este artigo se insere na História da educação. Discute o papel da escola e do livro didático na formação, na construção e conformação de uma identidade de gênero. O recorte temporal são as primeiras décadas do século XX e circunscreve-se às escolas étnicas polonesas no Paraná. A pesquisa foi realizada com a análise documental do livro didático Elementarz – Dla dzieci polskich w Brasylji (Primeiro livro – Para as crianças Polonesas no Brasil), de autoria de Konstanty Lech de 1936. É um livro de alfabetização que traz os vestígios de uma concepção de educação nas escolas étnicas polonesas. Nestas escolas as moças tinham uma educação voltada para o trabalho no lar, aos cuidados com a casa e a família e os rapazes para as tarefas ao ar livre nas florestas e campos. O ensino em língua polonesa era uma forma de manter a identidade étnica. A História Cultural orienta a análise do corpus documental, mostrando como o livro didático contribui na incorporação de valores sociais, atitudes e condutas, além de construir nos indivíduos uma representação deles mesmos e uma interpretação social com o mundo.
Os Saberes para ensinar e saberes a ensinar aritmética na Escola de Aprendizes Artífices de Santa Catharina
Authors: Barbaresco Cleber Schaefer , Da Costa David Antonio
Published: November 2018

A Escola de Aprendizes Artífices de Santa Catharina foi uma importante instituição de ensino profissional que oferecia o ensino elementar gratuito. Com isso, o propósito deste artigo é investigar saberes relacionados aos afazeres pedagógicos do ensino de aritmética do curso primário desta Escola. Para tanto, serão analisados os relatórios do Serviço de Remodelação do Ensino Profissional Técnico da década de 1920 e do livro Arithmetica Elementar Illustrada, 92ª edição, de 1922, de Antônio Bandeira Trajano. O ferramental teórico-metodológico utilizado para análise dos documentos foram os saberes para ensinar e saberes a ensinar desenvolvidos pela Equipe de Pesquisa em História Social da Educação (ERHISE) a partir de seus estudos sócio-históricos vinculados à História Cultural. Os relatórios do Serviço de Remodelação sugerem propostas que resultam em mudanças significativas no ensino profissional como, por exemplo, a adoção de uma única estrutura curricular e um inventário de livros didáticos que deveriam ser adotados pelas unidades escolares espalhadas pelo País. Desse modo, concluímos que os saberes para ensinar e saberes a ensinar aritmética foram instituídos a partir da expertise de João Luderitz, coordenador do Serviço de Remodelação, e sua equipe. No que diz respeito aos saberes para ensinar aritmética, o método intuitivo foi a referência. Já os saberes a ensinar aritmética foram reestruturados com base na proposta do Serviço de Remodelação afastando-os do seu propósito inicial assistencialista voltado apenas para a alfabetização, dando assim um status mais científico.
Proposição de tarefas com TDIC em aulas de Cálculo
Authors: Trevisan André Luis , Fonseca Maycon Odailson dos Santos da , Palha Sonia Abrantes Garcez
Published: November 2018

Considerando que o processo de elaboração, aplicação e refinamento de tarefas que façam uso de TDIC configura-se como uma importante atividade no âmbito do ensino, o objetivo deste texto é apresentar uma reflexão sobre os resultados de uma experiência de ensino na qual foi proposta uma tarefa com uso do Geogebra na disciplina de Cálculo Diferencial e Integral. Para tanto, adota pressupostos da pesquisa baseada em design e apresenta uma análise retrospectiva de dados oriundos do trabalho com uma tarefa para exploração de ideias necessárias à compreensão do conceito de derivadas. Como resultado desta reflexão, evidencia-se uma suposta “falha” na interação entre os estudantes e o aplicativo, relacionada com aspectos do ambiente de aprendizagem, por sua vez inter-relacionados entre si, a constar: o enunciado da tarefa; a TDIC; a interpretação das ações, explicações e interação dos estudantes; a interação entre professor e estudantes no processo de formalização. Este resultado confirma a importância de uma análise integrada de experiências de ensino e permite apontar sugestões específicas para um melhoramento da interação entre os estudantes e o aplicativo em termos de elaboração da tarefa e do ambiente de ensino e de aprendizagem.
Educação híbrida e design instrucional: estudo de caso no Ensino Superior Tecnológico
Authors: Castro Adriane Belluci Belório de , Mill Daniel
Published: November 2018

Em um cenário em constante transição, um dos desafios vividos, atualmente, no âmbito educacional, é o que envolve o planejamento e a construção de modelos de design instrucional compatíveis às emergentes necessidades de aprendizagem do aluno em qualquer nível de formação, seja básico, seja superior. Assim, com o intuito de experimentar um ambiente em que se tem a implementação de princípios da educação híbrida, este artigo tem por objetivo apresentar um estudo de caso em que se planejou e aplicou uma proposta de design instrucional, com ênfase na utilização de inovações e aplicações tecnológicas como apoio a aulas presenciais, para a disciplina de Comunicação e Expressão em um curso superior tecnológico público.
AN ANALYSIS OF THE HEALTHCARE CENTER SYSTEM AS A GATEKEEPER IN 2018
Authors: Maharanti Septiana , Oktamianti Puput
Published: November 2018

Abstract. In managed care, primary healthcarecare facilities acts as the gatekeepers, and its success is judged from the number of visits. In the year 2016, the Healthcare Centers in Tangerang was unable to meet the targets set by BPJS healthcare, ideally the visit rate should reach >150‰ and the referral ratio <10%. However, the visit rate only reachd 41‰ and the referral ratio was 29%. In addition, most healthcare centers the nonspecialised referral ratio was above 5%. The purpose of this research is to analyze the healthcare service system as the gatekeepers in managed care. This research is a descriptive analytical study with a qualitative approach. The data was collected through in-depth interviews, examination of documents and observations. Research conducted at healthcare centers and clinics Pedurenan Pabuaran Tumpeng from May-June 2018. From this research we discovered that the low contact lrate was caused be the low first contact levels, continuity, and comprehensiveness. The registering process was also complicated. We also discovered that the lack of human resources also influences the low contact rate. Abstrak. Dalam managed care, pelayanan primer bertugas sebagai gatekeeper, dan keberhasilannya dinilai dari tingginya angka kunjungan dan angka rujukan. Di tahun 2016, Puskesmas Kota Tangerang memiliki pencapaian yang tidak sesuai dengan target yang ditetapkan oleh BPJS Kesehatan, karena tingkat kunjungan hanya mencapai 41‰, idealnya >150‰; dan rasio rujukannya sebesar 29%, sedangkan idealnya adalah 10%. Selain itu, sebagian besar Puskesmas memiliki rasio rujukan nonspesialistik diatas 5% yang berarti berada di zona tidak aman. Tujuan penelitian ini adalah menganalisis sistem pelayanan puskesmas sebagai gatekeeper di Kota Tangerang pada tahun 2018. Penelitian ini merupakan penelitian deskriptif analitik dengan menggunakan pendekatan kualitatif.  Data dikumpulkan dengan melakukan wawancara mendalam, telaah dokumen dan observasi. Penelitian dilakukan di Puskesmas Pedurenan dan Puskesmas Pabuaran Tumpeng dari bulan Mei-Juni 2018. Dari penelitian ini ditemukan bahwa output angka kontak masih rendah. Pada variabel proses, yang menyebabkan angka kontak rendah adalah angka first contact, continuity, dan comprehensiveness yang rendah, serta proses pendaftaran pasien yang masih rumit. Sedangkan pada variabel input yang menjadi masalah adalah kurangnya sumber daya manusia.
AN ANALYSIS OF THE HEALTH CENTERS READINESS FOR ACCREDITATION IN BREBES DISTRICT IN 2018
Authors: Lourina Deny Ardi , Ayuningtyas Dumilah
Published: November 2018

Abstract. The accreditation of health centers is an endeavor by the Ministry of Health to improve the quality and performance of health centers regulated by Permenkes No. 4/2015. Of the 38 health centers in Brebes, only 10 has been accredited. We wish to discover how prepared are the health centers to be accredited based on the resources available and pre-accreditation survey. Data was obtained through in-depth interviews and documentary research. Results indicated that there was sufficient funds, facilities and equipment for the accreditation. However, the assessment scores for human resources sufficiency and documentary completeness was low. Abstrak. Akreditasi Puskesmas merupakan upaya peningkatan mutu dan kinerja pelayanan puskesmas yang diatur oleh Permenkes Nomor 46 Tahun 2015. Dari 38 puskesmas di Kabupaten Brebes, hanya 10 puskesmas yang sudah terakreditasi. Penelitian ini bertujuan untuk mengetahui seberapa siapkah Puskesmas di Kabupaten Brebes untuk menghadapi akreditasi berdasarkan variabel sumber daya dan tahapan kesiapan survei pra-akreditasi. Data dikumpulkan melalui wawancara mendalam dan telaah dokumen. Hasil penelitian menunjukkan bahwa ketersediaan dana, sarana dan prasarana dinilai cukup siap untuk mendukung penilaian akreditasi puskesmas, namun hasil skoring assessment pada keterpemenuhan kompetensi SDM dan kelengkapan dokumen masih rendah.
Sucrose intensity coding and decision-making in rat gustatory cortices
Authors: Fonseca Esmeralda , de Lafuente Victor , Simon Sidney A , Gutierrez Ranier
Published: November 2018

Sucrose’s sweet intensity is one attribute contributing to the overconsumption of high-energy palatable foods. However, it is not known how sucrose intensity is encoded and used to make perceptual decisions by neurons in taste-sensitive cortices. We trained rats in a sucrose intensity discrimination task and found that sucrose evoked a widespread response in neurons recorded in posterior-Insula (pIC), anterior-Insula (aIC), and Orbitofrontal cortex (OFC). Remarkably, only a few Intensity-selective neurons conveyed the most information about sucrose’s intensity, indicating that for sweetness the gustatory system uses a compact and distributed code. Sucrose intensity was encoded in both firing-rates and spike-timing. The pIC, aIC, and OFC neurons tracked movement direction, with OFC neurons yielding the most robust response. aIC and OFC neurons encoded the subject’s choices, whereas all three regions tracked reward omission. Overall, these multimodal areas provide a neural representation of perceived sucrose intensity, and of task-related information underlying perceptual decision-making.
Chondrogenic differentiation of adipose-derived mesenchymal stem cells induced by L-ascorbic acid and platelet rich plasma on silk fibroin scaffold
Authors: Barlian Anggraini , Judawisastra Hermawan , Alfarafisa Nayla M. , Wibowo Untung A. , Rosadi Imam
Published: November 2018

Articular cartilage is an avascular tissue with limited regenerative property. Therefore, a defect or trauma in articular cartilage due to disease or accident can lead to progressive tissue deterioration. Cartilage tissue engineering, by replacing defective cartilage tissue, is a method for repairing such a problem. In this research, three main aspects—cell, biomaterial scaffold, and bioactive factors—that support tissue engineering study were optimized. Adipose-derived mesenchymal stem cells (ADSC) that become cartilage were grown in an optimized growth medium supplemented with either platelet rich plasma (PRP) or L-ascorbic acid (LAA). As the characterization result, the ADSC used in this experiment could be classified as Mesenchymal Stem Cell (MSC) based on multipotency analysis and cell surface marker analysis. The biomaterial scaffold was fabricated from the Bombyx morii cocoon using silk fibroin by salt leaching method and was engineered to form different sizes of pores to provide optimized support for cell adhesion and growth. Biocompatibility and cytotoxicity evaluation was done using MTT assay to optimize silk fibroin concentration and pore size. Characterized ADSC were grown on the optimized scaffold. LAA and PRP were chosen as bioactive factors to induce ADSC differentiation to become chondrocytes. The concentration optimization of LAA and PRP was analyzed by cell proliferation using MTT assay and chondrogenic differentiation by measuring glycosaminoglycan (GAG) using Alcian Blue at 605 nm wavelength. The optimum silk fibroin concentration, pore size, LAA concentration, and PRP concentration were used to grow and differentiate characterized ADSC for 7, 14, and 21 days. The cell morphology on the scaffold was analyzed using a scanning electron microscope (SEM). The result showed that the ADSC could adhere on plastic, express specific cell surface markers (CD73, CD90, and CD105), and could be differentiated into three types of mature cells. The silk fibroin scaffold made from 12% w/v concentration formed a 500 µm pore diameter (SEM analysis), and was shown by MTT assay to be biocompatible and to facilitate cell growth. The optimum concentrations of the bioactive factors LAA and PRP were 50 µg/mL and 10%, respectively. GAG analysis with Alcian Blue staining suggested that PRP induction medium and LAA induction medium on 12% w/v scaffold could effectively promote not only cell adhesion and cell proliferation but also chondrogenic differentiation of ADSC within 21 days of culture. Therefore, this study provides a new approach to articular tissue engineering with a combination of ADSC as cell source, LAA and PRP as bioactive factors, and silk fibroin as a biocompatible and biodegradable scaffold.
Bio‐Tribology and Bio‐Lubrication of Plant Cell Walls
Authors: Dolan Grace K. , Yakubov Gleb E. , Stokes Jason R.
Published: November 2018

This article considers the underpinning role of interactive forces at the cell wall and cellulose–fibre interfaces in the physiological and biophysical functionality of the various non‐cellulosic components that are present within the plant cell walls. We specifically introduce the use of tribological science (friction and lubrication) to obtain new insights into relative movements occurring between cells and between cellulose fibrils within the cell walls, and the potential influence on friction forces by pectin, hemicelluloses, and expansins. This approach may provide a basis for describing physical phenomena which define the system's behaviour during growth, morphogenesis, and mechanical deformation of plants.
Bioresorbable Silicon Nanomembranes and Iron Catalyst Nanoparticles for Flexible, Transient Electrochemical Dopamine Monitors
Authors: Kim Hyun‐Seung , Yang Seung Min , Jang Tae‐Min , Oh Nuri , Kim Hee‐Soo , Hwang Suk‐Won
Published: November 2018

A strategy of materials synthesis, characteristic evaluations, and manufacturing process for a mechanically elastic, biologically safe silicon‐based dopamine detector that is designed to be completely transient, i.e., dissolved in water and/or biofluids, potentially in the brain after a desired period of operation, is introduced. Use of inexpensive, bioresorbable iron (Fe)‐based nanoparticles (NPs) is one of the attractive choices for efficient catalytic oxidation of dopamine as an alternative for noble, nontransient platinum (Pt) nanoparticles, based on extensive studies of synthesized materials and catalytic reactions. Arrays of transient dopamine sensors validate electrochemical functionality to determine physiological levels of dopamine and to selectively sense dopamine in a variety of neurotransmitters, illuminating feasibilities for a higher level of soft, transient electronic implants integrated with other components of overall system.
High‐Performance PE‐BN/PVDF‐HFP Bilayer Separator for Lithium‐Ion Batteries
Authors: Waqas Muhammad , Ali Shamshad , Lv Weiqiang , Chen Dongjiang , Boateng Bismark , He Weidong
Published: November 2018

Highly efficient and thermally stable polyethylene‐hexagonal boron nitride/poly(vinylidene fluoride‐hexafluoropropylene) (PE‐BN/PVDF‐HFP) bilayer separator with microporous structure is prepared, for the first time with a wet chemistry method. The incorporation of hexagonal boron nitride particles in PE matrix promotes the interfacial interaction between PE and PVDF‐HFP layers to prevent separation of layers and supresses dendrite growth owing to the strong adsorption energy with polymers, large interactive surface area, and superior mechanical capability. The PVDF‐HFP layer provides additional thermally stable backbone while its inherent hydrophilic property and highly porous structure improve the overall performance of the separator. The bilayer separator owns a high electrolyte uptake of 348% and a thermal shrinkage of 6.6% upon annealing at 140 °C for 1 h. The lithium iron phosphate/lithium cell with the as‐prepared separator owns a high ionic conductivity up to 4.4 × 10−4 S cm−1, and a room‐temperature capacity of 120 mAh g−1 at 2 C with a 95% capacity retention after 500 cycles and a capability of 108 mAh g−1 at 4 C. The PE‐BN/PVDF‐HFP separator is a promising alternative of traditional multilayer separators for high‐performance lithium‐ion batteries.
Copper‐Catalysed Double O‐Arylation for Enantioselective Synthesis of oxa‐Spirocycles
Authors: Yang Wenqiang , Wang Xingyuan , Jin Xiao , Sun Han , Guo Runan , Xu Wei , Cai Qian
Published: November 2018

A copper‐catalysed double O‐aylation for enantioselective formation of chiral oxa‐spirocycles is described. The method is based on a stepwise process and afforded chiral oxa‐spirocycles with good yields and moderate to high enantioselectivities.

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Piezoresistive Sensors Based on rGO 3D Microarchitecture: Coupled Properties Tuning in Local/Integral Deformation
Authors: Xu Minxuan , Li Feng , Zhang Zhenyun , Shen Tao , Qi Junjie
Published: November 2018

An ideal flexible piezoresistive sensor should possess high sensitivity as well as wide sensing range, and provide a stable and excellent response under different deformation, such as local and integral strain. However, these properties are difficult to achieve simultaneously with conventional all‐polymer‐filled composite, as tuning of one material component always causes the unpredictable change of multiple properties. Here, a strategy is developed to realize a reduced graphene oxide (rGO) based three‐dimensional (3D) microarchitecture, where the electrical conductivity and mechanical elasticity of the composite can be tuned simultaneously by only varying the rGO weight fraction. The analysis of coupled properties tuning effect shows that the device applied in local deformation reveals a greater dependence on electrical property, which prefers to low rGO weight fraction and displays a high sensitivity of 0.72 kPa−1 in the 10 kPa linear region. The sensor used for integral deformation is dominated by the mechanical property, which prefers to high rGO weight fraction and shows a gauge factor of 2517 at tensile strain of 100%, far superior to that previously reported. The rationally designed 3D microarchitecture is scalable, low cost, and promising in human–computer interactions, including but not limited to human health monitoring and intelligent wearable keyboards.
Improved Cycling Performance of Li‐Excess Cation‐Disordered Cathode Materials upon Fluorine Substitution
Authors: Lun Zhengyan , Ouyang Bin , Kitchaev Daniil A. , Clément Raphaële J. , Papp Joseph K. , Balasubramanian Mahalingam , Tian Yaosen , Lei Teng , Shi Tan , McCloskey Bryan D. , Lee Jinhyuk , Ceder Gerbrand
Published: November 2018

The recent discovery of Li‐excess cation‐disordered rock salt cathodes has greatly enlarged the design space of Li‐ion cathode materials. Evidence of facile lattice fluorine substitution for oxygen has further provided an important strategy to enhance the cycling performance of this class of materials. Here, a group of Mn3+–Nb5+‐based cation‐disordered oxyfluorides, Li1.2Mn3+0.6+0.5xNb5+0.2−0.5xO2−xFx (x = 0, 0.05, 0.1, 0.15, 0.2) is investigated and it is found that fluorination improves capacity retention in a very significant way. Combining spectroscopic methods and ab initio calculations, it is demonstrated that the increased transition‐metal redox (Mn3+/Mn4+) capacity that can be accommodated upon fluorination reduces reliance on oxygen redox and leads to less oxygen loss, as evidenced by differential electrochemical mass spectroscopy measurements. Furthermore, it is found that fluorine substitution also decreases the Mn3+‐induced Jahn–Teller distortion, leading to an orbital rearrangement that further increases the contribution of Mn‐redox capacity to the overall capacity.
Pyrene‐Fused Pyrazaacenes with Eight Rectilinearly Arranged Aromatic Rings
Authors: Wang Chuan‐Zeng , Feng Xing , Elsegood Mark R. J. , Warwick Thomas G. , Teat Simon J. , Redshaw Carl , Bi Yu‐Sui , Yamato Takehiko
Published: November 2018

A series of pyrene‐fused azaacene‐type conjugated molecules containing two pyrazine units and up to eight rectilinearly arranged aromatic rings were prepared by condensation coupling reactions in moderate yields. The geometries and electronic structures associated with 2 and 5 were evaluated by DFT calculations. Photophysical properties indicated that these systems possess delocalized structures, and their optoelectronic properties can be tuned by extending the π‐conjugated length and introducing electronic‐withdrawing groups. The compounds were thoroughly investigated by XRD studies, electrochemistry and DFT calculations. High thermal stability and tunable energy levels make them excellent candidates as a class of organic molecular materials.
A Quantitative Chemical Proteomics Approach for Site‐specific Stoichiometry Analysis of Ubiquitination
Authors: Li Yunan , Evers Jonathan , Luo Ang , Erber Luke , Postler Zachary , Chen Yue
Published: November 2018

Stoichiometric analysis of post‐translational modifications is an emerging strategy for absolute quantification of the fractional abundance of the modification. Herein, a quantitative chemical proteomic workflow for stoichiometric analysis of ubiquitination is reported, named isotopically balanced quantification of ubiquitination (IBAQ‐Ub). The strategy utilizes a new amine‐reactive chemical tag (AcGG‐NHS) that is structurally homologous to the GG remnant of ubiquitin on modified lysine after trypsin cleavage and therefore enables the generation of structurally identical peptides from ubiquitinated and unmodified lysine residues following trypsin digestion and secondary stable isotopic labeling. The strategy is highly robust, sensitive, and accurate with a wide dynamic range using either protein standards or complex cell lysates. Thus, this work provides an efficient chemical proteomics tool for quantitative stoichiometric analysis of ubiquitination signaling pathways.
C‐H‐Funktionalisierung von Standardpolymeren
Authors: Williamson Jill B. , Lewis Sally E. , Johnson Robert R. , Manning Irene M. , Leibfarth Frank A.
Published: November 2018

Die präparative Modifizierung von Polymersubstraten ist eine der ältesten und zuverlässigsten Methoden zur Erhöhung der funktionellen Vielfalt von weichen Materialien. Bei der Modifizierung der chemischen Struktur von Polymeren, die bereits in großem Maßstab hergestellt werden, wird die jetzige kostengünstige Massenproduktion von Standardkunststoffen für die Erschließung moderner Materialien genutzt. Es wurden unzählige Methoden zur C‐H‐Funktionalisierung von Polymeren entwickelt, die die Modifizierung von Materialeigenschaften sowohl im Labormaßstab als auch im industriellen Maßstab ermöglichen. Vorangetrieben durch Fortschritte bei der C‐H‐Aktivierung, in der Photoredoxkatalyse und in der Radikalchemie, haben sich in letzter Zeit chemoselektive Methoden zu einem Weg entwickelt, um Standardpolymersubstraten eine bestimmte Funktionalität zu verleihen. Dieser Aufsatz erörtert die historische Bedeutung und die aktuellen Fortschritte der C‐H‐Funktionalisierung von Standardpolymeren. Der konzeptionelle Ansatz, über den hier ein Überblick gegeben wird, verspricht interessante neue Entwicklungsrichtungen für das Gebiet, einschließlich der Erhöhung des Wertes von überall vorhandenen Materialien, der Entdeckung vollkommen neuer Materialeigenschaften und der Einführung eines gangbaren Weges für das Upcycling von nach Gebrauch anfallenden Kunststoffabfällen.