bluuebunny/crossref_metadata_2025 huggingface dataset:
Fructosyl transfer from sucrose and oligosaccharides during fructan synthesis in excised leaves of Lolium temulentum L.
Authors: HOUSLEY TL , GIBEAUT DM , CARPITA NC , Sims Ian , POLLOCK CJ
Published: July 2020

Fructan biosynthesis begins with the transfer of a fructosyl moiety from one sucrose molecule to another to yield a trisaccharide. Trisaccharides may also arise by the reversible transfer of a fructosyl moiety from higher oligomers to sucrose but in this case there is no net fructan synthesis. Short‐term and long‐term exposure of detached illuminated leaf blades of Lolium temulentum (L.I to 14CO2 was used to examine the mechanism of transfer of fructosyl residues to sucrose. Two trisaccharides, 1‐kestose and neokestose, were found to be radioactive when leaves excised and illuminated for 15 h ‐were exposed to NCO2 for 30 min. The label increased in neokestose during the chase period, while that in 1‐kestose increased for the first 2 h of the chase period then declined for the remaining 4h. With a longer exposure to 14CO2 during the first 6 h of the induction period, three trisaccharides, neokestose, 1‐kestose and 6‐kestose were radiolabelled. The label turned over in neokestose and 1‐kestose, but continued to accumulate in 6‐kestose during a subsequent 18 h chase period. The specific activities of glucose and fructose of the sucrosyl portion and the terminal fructosyl moiety of the various trisaccharides were compared. In the rapid pulse‐chase experiment the specific activity of the1 terminal fructosyl moiety was consistently less than that of the sucrosyl moiety. During the chase period, the specific activity of the terminal and internal fructose moieties became similar. These results indicate that in addition to trisaccharide formed by transfer of fructosyl units from sucrose, substantial amounts of both neokestose and 1‐kestose are made by transfer of fructosyl units from higher oligomers onto sucrose in reactions probably localized in the vacuole. Copyright © 1991, Wiley Blackwell. All rights reserved
Purification and characterization of fructans with β‐2, 1‐ and β‐2, 6‐glycosidic linkages suitable for enzyme studies
Authors: BONNETT GD , Sims Ian , JOHN JA ST. , SIMPSON RJ
Published: July 2020

Fructan pentasaccharides were purified, in quantities suitable for use as substrates for enzyme assays, from Neosugar‐p‐(Meijj Seika Kaisha Ltd. Japan), tubers of Helianthus tuberosus L., L., and stems and leaf sheaths of Triticum aestivum L by a combination of gel‐filtration and RP‐HPLC. Fructan of higher molecular mass (mean DP = 30) was purified from Leaves of Lolium rigidum Gaud, that had been induced to accumulate fructan and characterized along; with the commercially available fructan from Cichorium intybus L. (Sigma, St Louis, USA) (mean DP = 33). The fructan pentasaccharide purified from H. tuberosus was found to contain exclusively 2, 1‐linked fructose and terminal fructose and terminal glucose, and was identified as (1, 1, 1)‐kestopentatise. The fructan pentasaccharide purified from Neosugar‐P also contained (1,1,1)‐kestopentaose. although the presence of fructan Klinked glucose and 1 % 2, 6‐linked fructose indicated that a small proportion of other kestopentaoses were present, The fructan pentasaccharide purified from T aestivum consisted of almost exclusively 2,6‐linked fructose and terminal glucose and terminal fructose and was considered to contain predominantly (6,6,6)‐kestopentaose. The presence of 1 % 2,1,6)‐linked fructose indicated the sample also contained a small proportion of branched kestopentanse. The high molecular mass fructan from C. intybus was found to comprise linear molecules containing only 2,1‐linked fructose, terminal glucose and terminal fructose‐ High molecular mass fructan from L. rigidum contained predominantly 2. h‐linked fructose, had predominantly internal glucose, indicated by 2 %, 1.6‐linked glucose, low levels of branching, indicated 2 % 2,1,6‐linked fructose residues; and 1% of the residues were 2,1 ‐linked fructose. Copyright © 1994, Wiley Blackwell. All rights reserved
Isolation and characterization of cell walls from the mesocarp of mature grape berries (Vitis vinifera)
Authors: Nunan KJ , Sims Ian , Bacic A , Robinson SP , Fincher GB
Published: July 2020

Cell walls have been isolated from the mesocarp of mature grape (Vitis vinifera L.) berries. Tissue homogenates were suspended in 80% (v/v) ethanol to minimise the loss of water-soluble wall components and wet-sieved on nylon mesh to remove cytoplasmic material. The cell wall fragments retained on the sieve were subsequently treated with buffered phenol at pH 7.0, to inactivate any wall-bound enzymes and to dislodge small amounts of cytoplasmic proteins that adhered to the walls. Finally, the wall preparation was washed with chloroform/methanol (1:1, v/v) to remove lipids and dried by solvent exchange. Scanning electron microscopy showed that the wall preparation was essentially free of vascular tissue and adventitious protein of cytoplasmic origin. Compositional analysis showed that the walls consisted of approximately 90% by weight of polysaccharide and less than 10% protein. The protein component of the walls was shown to be rich in arginine and hydroxyproline residues. Cellulose and polygalacturonans were the major constituents, and each accounted for 30-40% by weight of the polysaccharide component of the walls. Substantial varietal differences were observed in the relative abundance of these two polysaccharides. Xyloglucans constituted approximately 10% of the polysaccharide fraction and the remainder was made up of smaller amounts of mannans, heteroxylans, arabinans and galactans.
Structural characterisation of galactoglucomannan secreted by suspension-cultured cells of Nicotiana plumbaginifolia
Authors: Sims Ian , Craik DJ , Bacic A
Published: July 2020

Galactoglucomannan (GGM) from cultures of Nicotiana plumbaginifolia has Man:Glc:Gal:Ara:Xyl in 1.0:1.1:1.0:0.1:0.04 ratio. Linkage analysis contained 4- and 4,6-Manp, 4-Glcp, terminal Galp and 2-Galp, small amounts and terminal Arap and terminal Xyl p, and ~ 0.03 mol acetyl per mol of glucosyl residue. Treatment with α- and β-D-galactosidases showed that the majority of the side-chains were either single Galp-α-(1 → residues or the disaccharide Galp-β-(1 → 2)-Galp-α-(1 → linked to O-6 of the 4-Manp residues of the glucomannan backbone. Analysis of the oligosaccharides generated by endo-(1 → 4)-β-mannanase digestion confirmed that the GGM comprises a backbone of predominantly alternating → 4)-D-Manp-β-(1 → and → 4)-D-Glc p-β-(1 → branched at O-6 of 65% of the 4-Manp residues. The major oligosaccharide identified was D-Glcp-β-(1 → 4)-[D-Galp-β-(1 → 2)-D-Galp-α-(1 → 6)]-D-Manp-p-β-(1 → 4)-D-Glcp-β-(1 → 4)-[D-Galp-α-(1 → 6)]-D-Manp-β-(1 → (27%), and most of the other oligosaccharides produced in significant quantities were based on this structure.
Preliminary characterization of carbohydrate stores from chlorarachniophytes (Division: Chlorarachniophyta)
Authors: McFadden GI , Gilson PR , Sims Ian
Published: July 2020

Chlorarachniophytes are amoeboid/flagellate eukaryotes that harbor reduced green algal endosymbionts. The carbohydrate stores of chlorarachniophyte algae have been investigated using methylation analysis to determine monosaccharide composition. An appreciable quantity of long chain β-1,3 glucan occurs in these algae. Immunogold electron microscopy using an antibody specific for β-1,3 glucans localized β-1,3 glucans within a vacuole in the host cell cytoplasm. The results suggest that photosynthate produced by the endosymbiont is stored by the host. Implications of the data for endosymbiosis are discussed.
Characterization of extracellular polysaccharides from suspension cultures of apple (Malus domestica)
Authors: Reid S , Sims Ian , Melton LD , Gane AM
Published: July 2020

The polymers secreted by suspension-cultured apple cells were composed of 85% carbohydrate (76% neutral sugar and 9% uronic acid) and 15% w/w protein. The extracellular polysaccharides (ECPs) contain 23% XG and 59% AGPs. The monosaccharide composition of the ECPs consisted of Gal, Ara, Glc and Xyl, with smaller amounts of Rha, Fuc and Man. Fractionation of the ECPs by anion-exchange chromatography yielded an unbound neutral fraction and a bound acidic fraction. Monosaccharide and linkage compositions of each fraction were determined. The neutral fraction (48% recovered carbohydrate) was composed of xyloglucan (XG;>90 mol%) which was purified by selective precipitation with Fehling's solution to yield pure XG. The purified XG had a Glc:Xyl:Gal:Fuc ratio of 4.0:2.5:0.8:0.5; the XG was not O-acetylated. The structure of the secreted XG was similar to that extracted from apple-pomace. The acidic fraction (52% recovered carbohydrate) was composed primarily of arabinogalactan-proteins (AGPs) as detected by the β-glucosyl Yariv diffusion test. The AGP had a Gal:Ara ratio of 1.3: 1.0. Minor amounts of arabinan, xylan and mannan were also detected in the ECPs. This study is the first examination of the polysaccharides secreted by apple cells grown in suspension culture.
Characterisation of extracellular polysaccharides from suspension cultures of members of the Poaceae
Authors: Sims Ian , Middleton K , Lane AG , Cairns AJ , Bacic A
Published: July 2020

Microscopic examination of suspension-cultured cells of Phleum pratense L., Panicum miliaceum L., Phalaris aquatica L. and Oryza sativa L. showed that they were comprised of numerous root primordia. Polysaccharides secreted by these suspension cultures contained glycosyl linkages consistent with the presence of high proportions of root mucilage-like polysaccharides. In contrast, suspension-cultured cells of Hordeum vulgare L. contained mostly undifferentiated cells more typical of plant cells in suspension culture. The polysaccharides secreted by H. vulgare cultures contained mostly linkages consistent with the presence of glucuronoarabinoxylan. The soluble polymers secreted by cell-suspension cultures of Phleum pratense contained 70% carbohydrate, 14% protein and 6% inorganic material. The extracellular polysaccharides were separated into four fractions by anion-exchange chromatography using a gradient of imidazole-HCl at pH 7.0. From glycosyl-linkage analyses, five polysaccharides were identified: an arabinosylated xyloglucan (comprising 20% of the total polysaccharide), a glucomannan (6%), a type-II arabinogalactan (an arabinogalactan-protein; 7%), an acidic xylan (3%), and a root-slime-like polysaccharide, which contained features of type-II arabinogalactans and glucuronomannans (65%).
Violence Inflicted on Students with Disabilities in Special Education Institutions at Public Sector: A Remedial Inquiry
Authors: Ghulam Fatima  , Samina Ashraf  , Rukhsana Bashir  , Dur e Nayab
Published: July 2020

The central theme of this investigation was to explore types of violence being inflicted on students with disabilities (deaf, blind, mentally retarded and physically handicapped) enrolled at primary grade level in private and public sector Special Education Institutions in Punjab-Pakistan. A sample of randomly selected 5 districts (Lahore, Gujranwala, Okara, Pakpatan, Rawalpindi) out of 36 districts of Punjab was taken. A conveniently available sample of 68 special education teachers (male: 22, female: 46) including 20 Senior Special Education Teachers (SSET) and 48 Junior Special Education Teachers (JSET) was taken to collect data on a self-developed and validated questionnaire with statistically significant reliability index (Cronbach Alpha: 0.85) containing 30 statements on violence on five point Likert type scale (from strongly disagree to strongly agree). The data were collected personally and with the help of research assistants. Data were analyzed on SPSS version 21. Descriptive analysis was run to find frequency distribution of responses, percentages and mean score. Independent sample t-test was employed to find difference in responses of special education teachers on the basis of gender. Analysis of Variance (ANOVA) was run to find difference in the opinions of special education teachers on the basis of their age, qualifications, and teaching experience. There was statistically substantial variation in the responses of special education teachers based on their qualifications. There was not statistically significant difference among the responses of special education teachers on the basis of their gender, age and teaching experience. Conclusions were drawn and recommendations to Punjab Special Education Department were made.
Enhanced Information System Security in Internet Banking and Manufacturing
Authors: Islam Saiful
Published: July 2020

The internet has contributed significantly by changing how we interact with other people and how we execute business today. By virtue of the internet, electronic commerce has emerged, facilitating business to manage their customers and other corporations inside more effectively and outside their industries. The industry which is applying business transaction using this new communication channel to reach its customers is the banking industry. The electronic banking system addresses several emerging trends such as customer's demand for anytime, anywhere service, product time-to-market imperatives and increasingly complex back-office integration challenges. The challenges that oppose electronic banking are concerns of security and privacy of information. This paper will first discuss the current forms of security threats in the internet banking; secondly, it will investigate weaknesses in the current information security protocols of the internet banking. Thirdly, it will propose an enhanced information system security for internet banking.
Práticas inovadoras em educação potencializadas pelas tecnologias digitais
Authors: Farias Batista Isabella , Paulina de Assis Maria
Published: July 2020

Este artigo apresenta um grupo de nove soluções tecnológicas que se propõem a potencializar ações inovadoras de ensino. Essas soluções são brevemente descritas e analisadas sob critérios relacionados a características de inovação, conforme suas propostas (ensino híbrido, sala de aula invertida, gamificação e personalização do ensino). Propõe-se também uma fundamentação teórica para as abordagens inovadoras, baseadas em autores reconhecidos na área da Educação, enfocando o papel da mediação como característica essencial do educador em suas práticas docentes.
Leitura por meio de ferramentas da internet: contribuições para o ato de ler a partir dos dizeres de universitários
Authors: Nascimento Merett Francielle , Martins Nathalia , Aparecida Pires Franco Sandra
Published: July 2020

Este estudo analisa as possíveis contribuições da leitura digital a partir da percepção de universitários sobre as ferramentas da internet. Foi realizada uma entrevista semiestruturada com 15 estudantes de Medicina e Psicologia de uma universidade do Paraná e os dados produzidos foram analisados à luz da abordagem crítico-dialética. Os resultados elucidam que a leitura digital faz parte do cotidiano dos participantes, sendo mencionada pela maioria como o suporte mais utilizado devido à acessibilidade. Os relatos dos universitários estão de acordo com uma pesquisa nacional, que constata o aumento no percentual de leitores devido às tecnologias da informação e comunicação.
Gestão pedagógica do ensino médio integrado em uma escola estadual do Pará
Authors: Batista do Carmo Silva João , Teixeira de Brito Eloar
Published: July 2020

Este trabalho analisa a gestão pedagógica do Ensino Médio Integrado à Educação Profissional em uma escola de educação tecnológica do estado do Pará, Brasil. A metodologia estruturou-se em uma abordagem qualitativa do tipo estudo de caso. A coleta de dados ocorreu por meio de pesquisa bibliográfica e documental e foi complementada com entrevista semiestruturada com os coordenadores pedagógicos da escola. Conclui-se que as práticas pedagógicas desenvolvidas ainda não conseguiram efetivar o Ensino Médio Integrado, mas apontam-se avanços nessa direção, com a construção democrática do Projeto Político Pedagógico (PPP).
Espaço e Educação
Authors: Novelino Barato Jarbas
Published: July 2020

Resenha da obraBURKE, Catherine; GROSVENOR, Ian. School. London: Reaktion Books, 2008. 208 p.
Programa de Desenvolvimento de Equipes (Prode): estudo avaliativo no Serviço Nacional de Aprendizagem Comercial (Senac) – Departamento Regional Ceará
Authors: Antonio Martins Lima Marcos , Nogueira Cabral Sidarta , Nascimento de Oliveira Andrea , De Melo Silva Denize , Maria de Oliveira Maciel Ilana
Published: July 2020

Este artigo apresenta uma experiência avaliativa de programa de desenvolvimento de equipes  unto aos docentes do Senac no Ceará. Conduzida por pesquisadores e especialistas, adotou-se a metodologia quadripolar de De Bruyne, Herman e Schoutheete, tendo como polo epistemológico o pensamento de Dewey, Kilpatrick e Schön. No campo teórico, explora-se o desenvolvimento de equipes e a avaliação de programas educacionais. No eixo morfológico, demonstra-se o modelo Programa de Desenvolvimento de Equipes (Prode).  No polo técnico, demonstram-se os resultados da avaliação na percepção dos facilitadores e dos docentes.
Alimentação e Educação: um encontro feliz
Authors: Novelino Barato Jarbas
Published: July 2020

Resenha das obras:WATERS, Alice. Edible schoolyard: a universal idea. San Francisco: Cronicle Books, 2008.FRUG, Amanda (coord.); HELVÉCIO, Bruno; CIOLA, Lucas; WEBB, Peter. Horta Escolar: Uma sala de aula ao ar livre. Embu das Artes: Sociedade Ecológica Amigos de Embu, 2013. Disponível em: http://www.seaembu.org/docs/livro_horta_escolar_online.pdf. Acesso em: 29 out. 2019.
Efektivitas Model Pembelajaran Think Pair Share dan Model Pembelajaran Pair Checks terhadap Kemampuan Berpikir Kritis Matematis Siswa
Authors: Savitri Anting , Nizaruddin Nizaruddin , Sugiyanti Sugiyanti
Published: July 2020

Penelitian ini bertujuan untuk mengetahui efektivitas model pembelajaran Think Pair Sharedan model pembelajaran Pair Checksterhadap kemampuan berpikir kritis matematis siswa. Jenis penelitian kuantitatif dengan desain eksperimen Pretest-Posttest Control Group Design. Sampel penelitian dengan Cluster Random Samplingdari populasi siswa kelas VII SMP PGRI 3 Taman Pemalang tahun pelajaran 2019/2020. Teknik pengumpulan data dengan teknik tes, dokumentasi dan observasi. Teknik analisis data menggunakan anava satu arah dengan taraf signifikansi 5% dilanjutkan dengan uji scheffe’ dan regresi linier sederhana untuk mengetahui besar pengaruhnya. Hasil penelitian menunjukkan bahwa (1) terdapat perbedaan rata-rata kemampuan berpikir kritis matematis siswa antara yang mendapatkan model pembelajaran Think Pair Share, model pembelajaran Pair Checksdan model pembelajaran konvensional. (2) kemampuan berpikir kritis matematis siswa yang mendapat model pembelajaran Think Pair Sharelebih baik daripada siswa yang mendapat model pembelajaran konvensional. (3) kemampuan berpikir kritis matematis siswa yang mendapat model pembelajaran Pair Checkslebih baik daripada siswa yang mendapat perlakuan model pembelajaran konvensional. (4) terdapat pengaruh positif keaktifan siswa terhadap kemampuan berpikir kritis matematis siswa pada model pembelajaran Think Pair Share. (5) terdapat pengaruh positif keaktifan siswa terhadap kemampuan berpikir kritis matematis siswa pada model pembelajaran Pair Checks. (6) rata-rata kemampuan berpikir kritis matematis siswa yang mendapat perlakuan model pembelajaran Think Pair Sharedan model pembelajaran Pair Checkstelah mencapai ketuntasan belajar individual maupun klasikal.
Analisis Kemampuan Pemecahan Masalah Peserta Didik dalam Menyelesaikan Soal pada Materi Pola Bilangan
Authors: Hidayah Nilla Tri , Nugroho Aryo Andri , Endahwuri Dhian
Published: July 2020

Tujuan dari penelitian ini adalah untuk mendeskripsikan analisis kemampuan pemecahan masalah matematika dalam menyelesaikan soal pada materi pola bilangan. Penelitian ini dilaksanakan di SMPN 6 Jepara. Jenis penelitian ini merupakan deskriptif kualitatif. Subjek penelitian yang diambil adalah siswa kelas VIII C SMPN 6 Jepara tahun ajaran 2019/2020 yang berjumlah 32 peserta didik dan diklasifikasikan menjadi enam subjek yaitu peserta didik dengan tingkat kemampuan pemecahan masalah Tinggi, Sedang, dan Rendah. Pengumpulan data yang dilakukan yaitu tes tertulis dan wawancara. Teknik analisis data dilakukan dengan tiga tahapan, yaitu tahap reduksi data, penyajian data, dan penarikan kesimpulan atau verifikasi data. Keabsahan data menggunakan triangulasi sumber yaitu dilakukan dengan cara mengecek data dari sumber yang berbeda. Hasil penelitian ini adalah sebagai berikut: (1)subjek kemampuan pemecahan masalah berkemampuan tinggi dapat memenuhi semua indikator pemecahan masalah berdasarkan langkah polya dengan lancar dan tepat (2)subjek kemampuan pemecahan masalah berkemampuan sedang pada tahap memahami masalah dan merencanakan dapat menyelesaikan dengan tepat, akan tetapi pada tahap melaksanakan kembali terdapat kesalahan dalam perhitungan dan subjek tidak mampu memeriksa kembali, dan (3)subjek kemampuan pemecahan masalah berkemampuan rendah tidak dapat memenuhi semua indikator dengan tepat.
Table of Contents: Proceedings of the 2019 InSITE Conference
Authors: Jones Michael
Published: July 2020

Table of Contents: Proceedings of the 2020 InSITE Conference
PEMANFAATAN SUMBER DAYA LOKAL UNTUK MENINGKATKAN UMKM DUSUN PULO GULUREJO
Authors: Wardani Setia , Rianto Rianto , Nilansari Anis Febri
Published: July 2020

Mitra pada Pengabdian kepada Masyarakat (PkM) ini adalah Kelompok Wanita Tani (KWT) yang bergerak pada bidang pertanian, berlokasi di Dusun Pulo Kalurahan Gulurejo Kapanewon Lendah Kabupaten Kulon Progo berjarak 28,7 km dari Universitas PGRI Yogyakarta (UPY). Masalah utama pada mitra adalah melimpahnya hasil pertanian dari KWT berupa pisang yang belum dikelola dan dimanfaatkan oleh masyarakat untuk menambah pendapatan keluarga karena belum adanya pengarahan tentang pengolahan makanan ringan, jangkauan pasar yang masih lokal dan desain produk yang masih konvensional. Tujuan PkM adalah membentuk dan mengembangkan kelompok usaha di Dusun Pulo yang mandiri secara ekonomi dengan memberikan solusi atas masalah pada mitra. Solusi untuk mengatasi masalah pada mitra antara lain dengan metode penyuluhan dan pelatihan diantaranya (1) Penyuluhan dan Pelatihan pengolahan pisang, (2) Pelatihan pengemasan produk, (3) Pelatihan manajemen pemasaran produk dengan memanfaatkan Teknologi Informasi dan Komunikasi (TIK). Hasil dari PkM ini adalah kripik pisang yang telah dikemas, promosi produk dengan memanfaatkan TIK serta artikel yang dipublikasikan pada jurnal pengabdian masyarakat.
Effect of Modulus of Bituminous Layers and Utilization of Capping Layer on Weak Pavement Subgrades
Authors: Alzaim Muhammed , Gedik Abdulgazi , Lav Abdullah Hilmi
Published: July 2020

The majority of the world’s highways consist of a flexible pavement commonly built of several layers (both asphaltic and granular) that have been laid over a pavement foundation known as the subgrade. A subgrade that is considered to be of a satisfying bearing capacity is expected to restrict not only the immediate distresses occurring during the construction phases, but also later deformations appearing during the service life of the pavement as it subjected to traffic loads. If the subgrade proves to be structurally weak, the highway’s flexible pavement can be supported by adding such modifications as a capping layer, which serves to greatly reduce the stress being applied to the pavement. This study aims to further our knowledge about maximum pavement functionality by investigating those parameters considered crucial to pavement design: the correspondence of material properties, the number of layers, and the layer thickness. These parameters were analyzed to determine the best performing composition, while also considering the financial aspects of road construction. To achieve such an aim, we chose to use KENLAYER software to assist us in determining the design of a flexible pavement in line with a specific Equivalent Single Axle Load (ESAL). The KENLAYER configuration provided us with the required ESAL targets for specific design lives. We next calculated the relative costs of these targets and chose those that proved to be most cost-effective and economical. The results indicate that when considering feasible pavements to meet a design of high ESAL applications, those utilizing high modulus asphaltic materials are most suitable for subgrade CBR of at least 3%, while weaker subgrade constructions must be provided with a capping layer.
Análisis termoenergético del sistema de generación de vapor de una central térmica de 49 MW
Authors: Retirado Mediaceja Yoalbys , Laurencio Alfonso Héctor Luis , Sánchez-Escalona Andres A. , Camaraza-Medina Yanán , Salazar Corrales Marcelo Fabián , Lamorú Urgelles Marbelis , Góngora Leyva Ever
Published: July 2020

En el trabajo se realiza un análisis termoenergético integral del sistema de generación de vapor de una termoeléctrica de 49 MW, lo cual no ha sido estudiado con rigor desde el punto de vista energético. En un algoritmo se sintetiza la metodología para el cálculo de los rendimientos térmicos brutos y exergéticos de las calderas que lo integran, aspectos que no se han interrelacionado en estudios precedentes. Los resultados evidencian un elevado grado de aprovechamiento de la energía térmica y una baja capacidad de utilización de la exergía disponible en las instalaciones, provocados por el deterioro de algunos de sus parámetros de operación y por irreversibilidades inherentes al proceso de transformación del agua en vapor. Los rendimientos, térmico y exergético del sistema, ascendieron a 90.106 y 45.491 %, respectivamente. El algoritmo propuesto prevé el cálculo y la comparación de los parámetros termoenergéticos reales de las calderas con los nominales y las acciones científicas, y técnico-organizativas, a desarrollar para lograr rendimientos termoexergéticos superiores. Su implementación futura tendrá en cuenta el análisis de los rendimientos térmicos netos, los indicadores económico-ambientales y la optimización energético-operacional de las calderas.
Prevalencia de Conductas Alimentarias de Riesgo en Adolescentes de Caracas: 2012 vs. 2018
Authors: Zerpa García Carlos Enrique , Ramírez Andreína
Published: July 2020

Introducción: Los trastornos de la conducta alimentaria (TCA) han tenido un importante protagonismo en la población adolescente, con tasas de prevalencia mundial en ascenso. En esta investigación se estudió la prevalencia de conductas alimentarias de riesgo sugestivas de Trastornos del comportamiento alimentario (TCA) en adolescentes de un municipio de la ciudad de Caracas. Materiales y Métodos: Dos muestras no relacionadas  (Ntotal = 933) provenientes de seis (6) institutos educativos de Caracas (NA: año 2012; NB: año 2018) fueron evaluadas con el cuestionario EAT-26 (NA = 311; 40,51% hombres; 59,49% mujeres); (NB = 622; 40,51% hombres; 59,49% mujeres), con edad promedio NA= 16,88 años y NB= 14,88 años.  Se hicieron comparaciones no paramétricas empleando la prueba U de Mann-Whittney.  Resultados: Los resultados obtenidos muestran prevalencia de TCA (para EAT-26 ≥ 20) en el orden de NA = 20: 0,064 (6,4%, para la muestra del año 2012) y para NB = 95 una tasa de 0,153 (15,3%, para la muestra de 2018). Se observaron diferencias estadísticamente significativas en los puntajes totales del EAT-26 para los factores Bulimia y Control Oral, pero no para Dieta; y para puntaje total y para el factor Control Oral considerando el punto de corte para conductas sugestivas de TCA en el instrumento (EAT-26 ≥ 20) y solo en dos (2) de los seis (6) institutos de educación considerados.Palabras clave: Trastornos del comportamiento alimentario; estudiantes de bachillerato; escala EAT-26; pruebas no-paramétricas.
EUTROPHICATION IN THE LOWER COASTAL BASIN OF THE JAMAPA RIVER IN VERACRUZ, MEXICO
Authors: Castañeda-Chávez María del Refugio , Sosa-Villalobos Cinthya A , Amaro-Espejo Isabel A , Galaviz-Villa Itzel , Lango-Reynoso Fabiola
Published: July 2020

The aim of this study was to determine parameters of dissolved oxygen, temperature and nitrogen in the coastal basin of the Jamapa River as indicators of eutrophication. Six sampling sites were selected in the lower basin, where samples were collected in triplicate in each site, during three seasons; north winds, dry and rainy. Results of the research, analyzed using the Minitab statistical program, were: site 2 showing the maximum value of dissolved oxygen with 5.83 mg/L; site 5 with the maximum temperature value of 30.3 ºC, during the dry season. Whereas, maximum mean values of total nitrogen were at site 2 (4.596 mg/L) and site 5 (4.281 mg/L). Coastal basins can change markedly the nitrogen concentration with respect to weather and environmental conditions. As well as, reduced forms of nitrogen cause alterations in dissolved oxygen and the increase in water temperature, along with high concentrations of nutrients.
SPATIAL PATTERN OF SULFUR DIOXIDE DISPERSION AND AFFECTED SETTLEMENT AREAS IN SERANG REGENCY BANTEN PROVINCE
Authors: Putra Ahmad Pratama
Published: July 2020

In Serang Regency, pollutants and air emissions are produced by industrial activities, including Sulfur Dioxide (SO2) gas. SO2-polluted air causes problems to the human respiratory system. This study examine the spatial pattern of SO2 gas dispersion and its impact on settlements in Serang Regency using geostatistic and Inverse Distance Weighting (IDW) method in Arc GIS. Based on the results of ambient air quality measurements in Serang Regency, which have been measured by the Serang Regency Environmental Agency from 2015 - 2019 for the SO2 parameter, it can be seen that none of them exceed the standard of the PP No. 411999 concerning Air Pollution Control. The results of spatial analysis of gas dispersion show tendencies of high gas concentration in industrial zones, which indicate the contribution of gases from industrial business activities in several monsoons. The most extensive settlement affected by SO2 gas with the highest value of 40-50 µg / Nm3 is on Cikande District covering an area of 3.173,77 Ha which occurs during the west monsoon from December to February.
UTILIZATION OF ARTIFICIAL INTELLIGENCE TO IMPROVE FLOOD DISASTER MITIGATION
Authors: Riza Hammam , Santoso Eko Widi , Tejakusuma Iwan Gunawan , Prawiradisastra Firman , Prihartanto Prihartanto
Published: July 2020

Flood disaster is one of predominant disaster event in Indonesia. The frequency and intensity of this disaster tend to increase from year to year as well as the losses caused thereby. To reduce the risks and losses due to flood disasters, innovation in disaster mitigation is needed. Artificial intelligence and machine learning are technological innovations that have been widely applied in various fields of life and can also be used to improve flood disaster mitigation. A literature study conducted in this research shows that the use of artificial intelligence and machine learning has proven to be able, and succeed to fastly and accurately perform flood prediction, flood risk mapping, flood emergency response and, flood damage mapping. ANNs, SVM, SVR, ANFIS, WNN and DTs are popular methods used for flood mitigation in the pre-disaster phase and it is recommended to use a combination or hybrid of these methods. During the flood disaster response phase, the application of artificial intelligence and machine learning are still not much has been done and need to be developed. Examples of the application are the use of big data from social media Twitter and machine learning both supervised learning with Random Forest and unsupervised learning with CNN which have shown good results and have a good prospect to be applied. For the use of artificial intelligence in post-disaster flood phase, are still also rare, because it requires actual data from the field. However, in the future, it will become a promising program for the assessment and application of artificial intelligence in the flood disaster mitigation.
Regional aspects of studying the digital economy in the system of economic growth drivers
Authors: Strogonova Elena , Novikova Natalya
Published: July 2020

Scientific thought is constantly looking for new sources and drivers of economic development and growth. In this regard, the digital economy becomes a buzzword as a major endogenous factor stimulating economic activity of a country and its regions. Therefore, its emergence, development, and measurement become high on the agenda. The paper summarises theoretical and methodological aspects of the study of the digital economy as the major driver boosting the regional economy. The methodological basis of the research rests on the contributions by Bukht and Heeks, the English scholars of the Global Development Institute, who introduced a three-scope approach to understanding the digital economy. The research team also draws on the method to compute the business digitalisation index developed by the Russian scholars of the National Research University Higher School of Economics. As a result of the research the authors propose their method for calculating the composite indicator of the regional economy digitalisation and test it on the Ural macroregion. The method uses a set of 12 specific indicators which shows how deep the digital economy and digital technologies have spread into the region. The study revealed the following distinctive features of the digital economy developing in the subjects of the Russian Federation constituting the Ural macroregion: significant differentiation of the digitalisation levels across the subjects; finished primary stage of the digitalisation process; dissimilar potential for the digital economy development among the subjects; correlation between the level of the regional economy digitalisation and economic growth.
¿Reconoce esta clave diagnóstica? Parte 1
Authors: Uribe Paola Andrea , Pedraza John Elkin , Rodríguez Gerzaín
Published: July 2020

Mujer de 59 años. Consultó por presentar placas descamativas discretamente pruriginosas, de 1 año de evolución, localizadas en el cuero cabelludo, con mínima alopecia, con extensión más allá de la línea de implantación. Se pensó en dermatitis seborreica y alopecia androgenética, pero no había un diagnóstico clínico preciso. Recibió múltiples tratamientos con champús medicados, sin mejoría. Una biopsia de piel de 4X4 mm se fijó en formol tamponado al 10%. Se incidió transversalmente por la mitad. El segmento superior se incluyó para cortarse en el micrótomo desde la parte más profunda, dérmica, hacia arriba, y el fragmento inferior se cortó desde su porción superior hasta la hipodermis.
Dermatitis de contacto alérgica e irritativa en región vulvar. Impacto de los jabones íntimos
Authors: Cruz Garnica Adriana Patricia , Salamanca Sonia , Hernández Natalia , Villamil Johanna Alexandra , Quiasua Diana Carolina
Published: July 2020

La dermatitis de contacto vulvar es un problema común en dermatología y ginecología; afecta de manera importante la salud y la calidad de vida de las mujeres que la padecen. Más del 50% de los casos de prurito vulvar crónico en mujeres adultas puede ser atribuido a sustancias irritantes y alérgenos, entre ellos los denominados jabones íntimos, cuyo uso es cada vez más frecuente. El principal síntoma de la dermatitis es irritación en la región vulvar; puede presentar síntomas como prurito, ardor y dolor. La dermatitis de contacto se produce después de la exposición a irritantes exógenos o alérgenos. Clínicamente son difíciles de diferenciar estas dos entidades; se requiere realizar una adecuada historia clínica, que indague sobre posibles alérgenos, realizar un examen físico completo y una prueba de parche, único método diagnóstico que confirma la dermatitis alérgica por contacto, para realizar un diagnóstico acertado e iniciar un tratamiento adecuado y eliminar el factor desencadenante.
¿Reconoce esta clave diagnóstica? Parte 2
Authors: Uribe Paola Andrea , Pedraza John Elkin , Rodríguez Gerzaín
Published: July 2020

Esta paciente nos permite recordar algunos conceptos sobre los cambios pilosebáceos en la psoriasis, especialmente la atrofia sebácea. El compromiso del cuero cabelludo ocurre en el 50-78% de los pacientes con psoriasis; la alopecia es frecuente, aunque es reversible con el tratamiento adecuado y temprano. En el 7-12% de los casos se ha asociado con alopecia cicatricial, en pacientes con años o décadas de evolución de su enfermedad. En el 34% de los casos, la psoriasis compromete únicamente al cuero cabelludo, lo cual implica una dificultad diagnóstica clínica, como ocurrió con la paciente presentada.
RELIGIOSITAS MASYARAKAT BETAWI DALAM FOLKLOR
Authors: Hidayatullah Syarif
Published: July 2020

Identitas religiositas masyarakat Betawi begitu kental yang dapat dilihat dalam perayaan-perayaan budayanya. Faktor ini salah satunya dipengaruhi oleh tradisi sastra lisan yang berkembang di masyarakat Betawi yang memunculkan religiositas masyarakatnya sehingga menjadi alat pembelajaran bagi generasi penerusnya. Dalam upaya tersebut penelitian ini berupaya untuk menganalisis religiositas masyarakat Betawi dalam folklor, khususnya dalam cerita rakyat. Untuk itu, metode yang digunakan adalah analisis isi. Data penelitian ini bersumber dari Cerita Rakyat Betawi I dan Cerita Rakyat Betawi II. Data tersebut kemudian diolah dengan tiga tahap, yaitu reduksi data, model data, dan penarikan/verifikasi kesimpulan. Hasil penelitian ini menunjukkan bentuk religiositas masyarakat Betawi berupa kepercayaan, praktik beragama, perasaan religius, pengetahuan religius, dan efek religius. Berdasarkan hal tersebut dapat disimpulkan bahwa masyarakat Betawi memiliki kematangan religiositas yang tinggi terhadap kepercayaan yang dianutnya.
Rancang Bangun Sistem Conditioining Udara Berbasis IoT pada Studi Kasus Tanaman Selada Hidroponik
Authors: Angga Dwipa Anak Agung , Wedashwara W I Gede Putu Wirarama , Zubaidi Ariyan
Published: July 2020

Air temperature and humidity as well as water temperature are very important environment variables in planting DFT hydroponic lettuce plants in a greenhouse. Controlling and monitoring the temperature and humidity generally still done manually by farmers. This problem can be solved by building an air conditioning system that implements the concept of the Internet of Things, which plays a role in automation control of actuators, and MQTT protocols as its data communication medium. Based on the test results, the system has been able to perform measurement and conditioning of air temperature and humidity, as well as water temperature in the greenhouse automatically. Comparison of observation and test result data with sunny weather conditions, showing that the average and maximum value of air and water temperature on test, lower compared to observation data. While the average and minimum value of humidity in the test are higher than the observation data.
A Smartphone-Based of Wood Identification Using Image Feature Extraction
Authors: Sugiarto Bambang , Gojali Elli A. , Herlan Herlan , Lestari Puji
Published: July 2020

Each wood species has their special characteristics which can be differentiated based on their anatomical structures through wood identification. One of the methods is by detecting macroscopic wood image using computer vision. This method is more rapid and accurate to identify wood species compared to the conventional method. In previous work, we have developed a computer vision technique for wood identification by combining Histogram of Oriented Gradient (HOG) and Support Vector Machine (SVM). As smartphone usage increasing worldwide, capturing wood structures using this smart device is very easy to do and can replace the use of digital microscopes. This paper propose a technique for extraction the wood species on smartphone using HOG method as well as the classification method using SVM on android smartphone. SVM was used to classify the extracted wood textures from the HOG features. In our experiments, wood images of 7 wood species were used i.e Mimusops_-elengi, Melanorrhoea wallichii, Acer niveum, Cratoxylon formosum, Agathis endertii, Dyera costulata and Knema glauca. Each species has a total of 100 training images and 100 testing images. The highest accuracy is obtained by Melanorrhoea wallichii and Agathis endertii species with 84.00% score. The Agathis endertii species has the highest sensitivity and the value reaches 86%. Moreover, the Melanorrhoea wallichii species has a highest score for specificity and precision
Analisa Perbandingan Keakuratan Metode Certainty Factor dan Dempster Shafer untuk Diagnosia Dini Penyakit Hepatitis berbasis Mobile
Authors: Hayat Cynthia , Amyou Amyou , Marcel Marcel
Published: July 2020

Hepatitis is an inflammation of the liver due to a viral infection that attacks and causes damage to cells and the function of the liver. Many methods are currently used in building expert systems, including Certainty Factor and Dempster Shafer. The selection of both Certainty Factor and Dempster Shafer methods is very suitable for expert systems. In the previous study there was the Certainty Factor method used to diagnose hepatitis but there was no accuracy, whereas in Dempster Shafer there was an accuracy rate of 90%. This study aims to find out the suitable method to diagnose hepatitis by comparing the method of Certainty Factor and Dempster Shafer. In this study the application is in the form of a mobile base using Android Studio and database storage with MySQL. After that, do the Application Validation Test with experts and accuracy testing is carried out using samples from expert diagnosis results. The results of the test obtained the accuracy of the test using the Certainty Factor method is 95%. While the accuracy of testing using the Dempster Shafer method is 90%.
Disaster Resilient Village Based On Sociocultural Aspect in Ponorogo
Authors: Pramono Muhamad Fajar , Lahuri Setiawan , Ghozali Mohammad
Published: July 2020

Real landslides management in Indonesia is formulated in the form of a resilient village (Destana/Desa Tangguh Bencana). In Ponorogo, there is one village as a role model of Destana that is Tugurejo village. The purpose of this study is to explore the beneficial advantages of implementing the Destana program in Tugurejo. The other 11 disaster-resilient villages in Ponorogo area will also be explored in other programs. The method used in this study is grounded research. The results of the study show that Tugurejo village has a good management institution and the spirit of mutual cooperation. Furthermore, the village head's leadership that firmly maintains the local wisdom as a form of collaboration of social and cultural aspects was forcing the village development, at least in the case of Tugurejo Village, and built the ability to perform synergy with stakeholders.
Multi Stakeholder Involvement in Tsunami Disaster Recovery Phases in South Lampung
Authors: Hutagalung Simon Sumanjoyo , Sulistio Eko Budi , Mulyana Nana
Published: July 2020

Disaster management always requires the role of many groups, but it requires the regulation of those roles the most. This study aims to analyze multi-stakeholder roles and challenges that arise in handling tsunami disasters in South Lampung. This research uses descriptive qualitative method where data is collected purposively from the local government, leaders of the community, and private organizations through interviews, observation and documentation. This study identify collaboration of the three parties that bring a positive impact on refugees and the role of the district government and provincial government at the forefront, while the private sector and community institutions begin to diminish their role. The challenges arise in disaster management are related to post-rehabilitation activities and anticipation of potential disasters that can still occur in the region in the future.
Shifting Cultivation of Arfak Farmer in Somi and Indisey Villages
Authors: Tapi Triman , Kurnia Ganjar , Setiawan Iwan , Sumule Agus
Published: July 2020

Shifting cultivation of Arfak farmer is a traditional planting which they inherited from their ancestor. This research aims to explain the environmental condition of shifting cultivation in Indisey and Somi villages and the barriers in socio-economy, social capital, and human capital. This research applies a cross-sectional study which is taken in a short period of time and done step by step to get certain points that lead to a clear conclusion. The results of the study show that shifting cultivation condition in Indisey and Somi villages have the fertility soil signed by the existing of trees called Bembuk and Ciskua. The farmworkers are their own family members and there are job divisions between men and women. There is also a traditional policy called Igya ser hanjob to manage the social life and natural resources of Arfak ethnic. The result of study also shows that the socio-economic condition of Arfak's community is started to improve. They are generous people who would love to give after they fulfilled their own needs. They open to new things and would like to learn from others. If there is conflict, it is due to the culture shock of local people when they have to follow the government program namely resettlement and the land demand of the palm oil expansion.
PENGARUH LEADER MEMBER EXCHANGE (LMX) TERHADAP ORGANIZATIONAL CITIZENSHIP BEHAVIOR (OCB) PERAWAT SUKU BUGIS-MAKASSAR INSTALASI RAWAT INAP RSUD LABUANG BAJI
Authors: Mahmudah Rifa'ah , Indahwaty Andi , Thamrin Yahya
Published: July 2020

Nilai budaya diperoleh seseorang dari awal kehidupan yang mempengaruhi perilaku di tempat kerja. Leader Member Exchange yang tinggi telah diketahui dapat memotivasi karyawan sehingga dapat menunjukkan perilaku Organizational Citizenship Behavior yang dipercaya menjadi penyebab meiningkatnya produktifitas di tempat kerja. Penelitian ini bertujuan untuk menganalisis pengaruh leader member exchange terhadap organizational citizenship behavior Perawat Suku Bugis-Makassar di Instalasi Rawat Inap RSUD Labuang Baji. Penelitian ini merupakan penelitian kuantitatif. Rancangan yang digunakan adalah observasional analitik dengan pendekatan cross-sectional study. Sampel sebanyak 98 orang perawat dipilih dengan teknik purposive sampling dengan kriteria suku Bugis-Makassar. Data dianalisis dengan menggunakan uji regresi linear berganda. Hasil penelitian responden dengan karakter Bugis-makassar  yang  erat  dengan nilai budaya siri’ na pacce dengan kriteria sipakatau (kemanusiaan); deceng (baik); asseddingeng (kesatuan) dan marenreng perru (setia) menunjukkan bahwa ada pengaruh signifikan proffesional respect (p<0,05), contribution (p<0,05), dan affect  (p<0,05) terhadap organizational citizenship behavior. Sebaliknya, tidak ada pengaruh loyalty (p>0,05) terhadap organizatioonal citizenship behavior perawat Suku Bugis Makassar