bluuebunny/crossref_metadata_2025 huggingface dataset:
Effects of Moist-Cold Stratification and Gibberellic Acid Applications on Breaking Seed Dormancy in Foxtail Lily (Eremurus spectabilis M.Bieb.)
Authors: AKDAĞ Şeref , TUNCER Burcu
Published: February 2020

Eremurus spectabilis is a wild edible perennial herbaceous geophyte species with medicinal and popularornamental uses. In this study, gibberellic acid (GA3) with moist-cold stratification treatments were applied to break thedormancy of E. spectabilis seeds. For this purpose, seeds were soaked in gibberellic acid solutions (GA3: 500 and 750 ppmfor 24 and 48 hours). Pretreated seeds were then subjected to moist-cold stratification treatments for different durations (30,50, 80 and 100 days) at 4 ºC. In 24-hour GA3 treatments, the germination and emergence ratios (21.04%) were obtainedfrom the 500 ppm GA3 dose and 100 days of stratification treatments. In 48-hour GA3 treatments, the GA3 doses did nothave any significant effect on germination and emergence ratios; the greatest germination ratios were obtained from the 500ppm (20.36%) and 750 ppm (20.00%) doses and 100 days of stratification treatments, and the best emergence ratios wereobtained from the 500 ppm GA3 dose and 100 days of stratification treatments (18.51%). It is considered that it is beneficialto try the combinations of moist-cold applications with different treatments in future studies.
Análise do comportamento térmico de um banco de Taipa de Pilão
Authors: Brandão Júnior José Ronaldo , Sales Luiz Ricardo , Lopes Neto José Pinheiro , Nascimento José Wallace Barbosa do
Published: February 2020

A primeira abordagem ao trabalho consiste numa recolha e análise de informação relativa à construção em terra crua desde a sua origem ao seu uso atual, na qual se irá aprofundar com a técnica da Taipa de Pilão. Sua composição apresenta uma elevada inércia térmica que dadas características climáticas do nordeste do Brasil, poderá melhorar o comportamento térmico das construções que as integram. Neste trabalho procurou-se analisar o comportamento térmico de um banco de Taipa de Pilão. Para o seu desenvolvimento física, foram preparadas diversas composições de terra (areia, cal e cimento) com a incorporação em grande parte de argila natural sem comprometer a necessária resistência mecânica. Com a conclusão do banco, foram realizadas as análises do comportamento térmico, através da utilização de sensores de temperatura e umidade instalados em seu interior e na sua superfície.  Após 80h de análise, os resultados foram tabulados e gerados gráficos representativos. Os resultados alcançados possibilitaram identificar qualitativamente e quantitativamente as características das variações térmicas no banco.
Evidências de métodos participativos para o planejamento urbano da cidade saudável
Authors: Sperandio Ana Maria Girotti , Bloes Rodrigo Brandini , Lin Pamela Shue Lang
Published: February 2020

Estudar e pesquisar princípios, valores e características de uma cidade saudável é um processoque demanda imersão. É necessário um entendimento do que é saudável ou ainda percorrer um caminhoinvestigativo do que poderia ser o oposto disso, a fim de esclarecer a definição e aproximar dacomplexidade do conceito de saúde. Notando que o ambiente urbano é de considerável multiplicidade, asdiversas instâncias que compõem a cidade saudável podem ser analisadas simultaneamente. Este artigotem como objetivo apontar métodos participativos e as suas respectivas evidências para subsidiar astomadas de decisões dos gestores públicos, no seu cotidiano, para o desenvolvimento da cidade saudável.A metodologia para tal apontamento baseou-se em revisões bibliográficas em relação aos temas, emleitura com profundidade dos documentos gerados nas cidades, após desenvolvimento dos projetos comatuação da academia, gestão pública e comunidade, diálogos das visitas técnicas realizadas nas cidades eregistros fotográficos. Como resultados, o LABINUR/FEC/UNICAMP, a partir do monitoramento dasexperiências, tem obtido elementos para a formulação de uma metodologia do Planejamento UrbanoBaseado em Evidências para a Cidade Saudável que poderá ser indicada para os gestores públicos com ointuito de relacionar a escolha ideal das iniciativas a serem postas em prática e trazer a participação socialpara o processo de tomada de decisões. Concluiu-se que o monitoramento dos métodos participativospermite aproximar da realidade social vivenciada em micro espaços e identificar evidências que podem sersignificativas no processo de construção de políticas públicas para a cidade saudável.
Cultura de fluidez, estrategia para la rehabilitación y construcción de un ambiente sostenible
Authors: Escobar David Francisco  Llamosa
Published: February 2020

La naturaleza se caracteriza por ser un ente fluido y dinámico. Podemos establecer que los eventos cósmicos, los climáticos de la tierra, y los comportamientos biológicos, están regidos por fluidos fundamentales. Las formas fractales que evidenciamos en la naturaleza, son el resultado visible de la realidad vital y su dinámica constitutiva. Estas en un principio de economía natural, hacen posible que los fluidos se optimicen, permitiendo la creación de organismos. La fluidez natural contrasta con el estatismo de la geometría Euclidiana, y la parálisis propiciada por el diseño moderno, propios del entorno construido de las sociedades humanas, desde el inicio de la revolución industrial hasta nuestros días. El borde filoso disociativo, se ha opuesto de forma sistemática al borde poroso heterónomo, característico de los sistemas biológicos abiertos. Esto ha conllevado al deterioro del ambiente y a la segregación de las comunidades que pueblan la biósfera. Con el propósito de generar un ambiente sostenible, las operaciones en el entorno habitable, deberán fundamentarse en una consonancia con los flujos naturales, permitiendo construir con la naturaleza y no a pesar de ella. Una cultura de la fluidez permitirá políticas sostenibles, e intervenciones urbanas en el territorio, que superen los abismos culturales y sociales del presente.
Implementación de herramientas digitales en la enseñanza de Geometría Descriptiva: Impacto en el rendimiento académico = Implementing computer-assisted tools in the teaching of descriptive geometry: Impact on the academic performance
Authors: Pita Andreu Javier , López Zaldivar Óscar , Balcázar Fernández Agustín , Lozano Díez Rafael Vicente
Published: February 2020

En este artículo se presentan los resultados académicos obtenidos a raíz de la implantación de una experiencia docente en la utilización de herramientas informáticas de diseño asistido por ordenador para la enseñanza de la Geometría Descriptiva en el Doble Grado en Edificación y Dirección y Administración de Empresas de la Universidad Politécnica de Madrid. Se expone la nueva metodología utilizada, el programa académico desarrollado, incluidas algunas de las construcciones más interesantes en la resolución de problemas geométricos estudiados, y los resultados académicos obtenidos. El seguimiento se realizó a través de una encuesta anónima dirigida a todos los alumnos matriculados. De acuerdo al análisis de los resultados obtenidos, la utilización de TIC’s ha permitido aumentar la estimulación y el interés de los alumnos hacia la asignatura de geometría descriptiva, mejorando su comprensión espacial y aumentando sus conocimientos. Las calificaciones finales han sido cualitativamente mejores y el número de alumnos aprobados en relación a los del curso anterior, ha crecido cerca de un 10%. Además, la impresión subjetiva del profesorado es que lo aprendido por el alumno dejará un mayor poso que el derivado de otros procedimientos de enseñanza tradicional. Por añadidura a lo anteriormente mencionado, el grado de absentismo cosechado fue inferior al de cursos pasados.AbstractThis article presents the academic results obtained due to the implementation of a teaching experience in the use of computer aided design tools for the teaching of Descriptive Geometry in the Double Degree in Building and Management and Business Administration of the Universidad Politécnica de Madrid. It presents the new methodology used, the academic program developed including some of the most interesting examples in the resolution of geometric problems, and the learning outcomes obtained. The monitoring of the experience was done through an anonymous survey addressed to all students enrolled in the subject. According to the analysis of the results achieved, the use of ICTs has allowed to increase the stimulation and the interest of the students towards the subject, improving their spatial understanding and increasing their knowledge of geometry. The final grades have been qualitatively better and the number of passing students compared to those in the previous year has grown by about 10%. In addition, the teaching staff has the feeling of having achieved a “better learning” than that derived from other methods. On top of that, the rate of absenteeism was lower than in previous courses.
SAÚDE MENTAL NO CONTEXTO UNIVERSITÁRIO: DESAFIOS E PRÁTICAS
Authors: Perez Karine Vanessa , Brun Luciana Gisele , Rodrigues Carlos Manoel Lopes
Published: February 2020

Este artigo busca contextualizar as questões relativas à saúde mental no contexto universitário, apresentando algumas práticas já desenvolvidas, além de citar desafios futuros. Discute tanto o sofrimento de estudantes quanto de professores no meio acadêmico. Foi produzido a partir de reflexões, bem como referências já publicadas a respeito da temática. Também cita brevemente os artigos que são apresentados neste dossiê, com o intuito de encontrar pontos em comum. Pode-se dizer que os estudos que envolvem o sofrimento psíquico no ambiente universitário são recentes e que esta problemática vem afetando tanto instituições públicas quanto privadas. Busca-se propor alternativas à esse sofrimento com o intuito de facilitar o processo acadêmico de universitários e as vivências de professores no âmbito do trabalho nas instituições de ensino superior.
Anomaly Detection in Particulate Matter Sensor Using Hypothesis Pruning Generative Adversarial Network
Authors: Park Yeong Hyeon , Park Won Seok , Kim Yeong Beom
Published: February 2020

World Health Organization (WHO) provides the guideline for managing the Particulate Matter (PM) level because when the PM level is higher, it threats the human health. For managing PM level, the procedure for measuring PM value is needed firstly. We use Tapered Element Oscillating Microbalance (TEOM)-based PM measuring sensors because it shows higher cost-effectiveness than Beta Attenuation Monitor (BAM)-based sensor. However, TEOM-based sensor has higher probability of malfunctioning than BAM-based sensor. In this paper, we call the overall malfunction as an anomaly, and we aim to detect anomalies for the maintenance of PM measuring sensors. We propose a novel architecture for solving the above aim that named as Hypothesis Pruning Generative Adversarial Network (HP-GAN). We experimentally compare the several anomaly detection architectures to certify ours performing better.
Profiling the Immune Vulnerability Landscape of the 2019 Novel Coronavirus
Authors: Zhu James , Kim Jiwoong , Xiao Xue , Wang Yunguan , Luo Danni , Chen Ran , Xu Lin , Zhang He , Xiao Guanghua , Zhan Xiaowei , Wang Tao , Xie Yang
Published: February 2020

The outbreak of the 2019 Novel Coronavirus (2019-nCoV) has rapidly spread from Wuhan, China to multiple countries, causing staggering number of infections and deaths. A systematic profiling of the immune vulnerability landscape of 2019-nCoV is lacking, which can bring critical insights into the immune clearance mechanism, peptide vaccine development, and antiviral antibody development. In this study, we predicted the potential of all the 2019-nCoV viral proteins to induce class I and II MHC presentation and form linear antibody epitopes. We showed that the enrichment for T cell and B cell epitopes is not uniform on the viral genome, with several focused regions that generate abundant epitopes and may be more targetable. We showed that genetic variations in 2019-nCoV, though fewer for the moment, already follow the pattern of mutations in related coronaviruses, and could alter the immune vulnerability landscape of this virus, which should be considered in the development of therapies. We create an online database to broadly share our research outcome. Overall, we present an immunological resource for 2019-nCoV that could significantly promote both therapeutic development and mechanistic research.
Impact of the Immune Response Modification by Lysophosphatidylcholine in the Efficacy of Antibiotic Therapy of Experimental Sepsis and Pneumonia by Pseudomonas aeruginosa
Authors: Parra-Millán Raquel , Jiménez-Mejías Manuel Enrique , Ayerbe-Algaba Rafael , Domínguez-Herrera Juan , Díaz-Navarro Caridad , Pérez del Palacio José , Pachón Jerónimo , Smani Younes
Published: February 2020

Immune response stimulation may be an adjuvant to antimicrobial treatment. Here, we evaluated the impact of immune response modification by lysophosphatidylcholine (LPC) combined with imipenem or ceftazidime in murine models of peritoneal sepsis (PS) and pneumonia by Pseudomonas aeruginosa. Imipenem and ceftazidime-susceptible strain (Pa39), and imipenem and ceftazidime-resistant strain (Pa238) were used. Ceftazidime pharmacokinetic and pharmacodynamic parameters were determined. Therapeutic efficacy, and TNF-α and IL-10 levels were determined in murine models of PS and pneumonia by Pa39 and Pa238 treated with LPC, imipenem or ceftazidime, alone or in combination. In PS model, LPC+ceftazidime reduced spleen and lungs Pa238 concentrations (-3.45 and -3.56 log10 CFU/g; P<0.05) than ceftazidime monotherapy, while LPC+imipenem maintained the imipenem efficacy (-1.66 and -1.45 log10 CFU/g; P>0.05). In pneumonia model, LPC+ceftazidime or LPC+imipenem reduced lungs Pa238 concentrations (-2.37 log10 CFU/g, P=0.1, or -1.35 log10 CFU/g, P=0.75). For Pa39 no statistically significant difference has been observed in PS and pneumonia models between combined therapy and monotherapy. Moreover, LPC+imipenem and LPC+ceftazidime decreased and increased significantly TNF-α and IL-10 levels, respectively, in comparison with untreated controls and monotherapies. These results demonstrate the impact of immune response modification by LPC plus antibiotics on the prognosis of infections by ceftazidime-resistant P. aeruginosa.
Lowered Serum Cesium Levels in Schizophrenia: Association with Immune-Inflammatory Biomarkers and Cognitive Impairments
Authors: Almulla Abbas F. , Moustafa Shatha Rouf , Al-Dujaili Arafat Hussein , Al-Hakeim Hussein Kadhem , Maes Michael
Published: February 2020

Objective: A previous study showed that schizophrenia is accompanied by lowered levels of trace/metal elements including cesium. There are no data whether changes in cesium, rubidium and rhenium are associated with activated immune-inflammatory pathways, cognitive impairments, and the symptomatology of schizophrenia. Methods: This study measured cesium, rubidium, and rhenium, cognitive impairments (using the Brief Assessment of Cognition in Schizophrenia) and the cytokines/chemokines interleukin (IL)-1β, tumor necrosis factor (TNF)-α, and CCL11 (eotaxin) in 120 schizophrenia patients and 54 healthy controls. Severity of illness was assessed using the Brief Psychiatric Rating Scale (BPRS), the Scale for the Assessment of Negative Symptoms (SANS), the Fibromyalgia and Chronic Fatigue Syndrome Rating (FF) Scale and the Hamilton Depression Rating Scale (HAM-D). Results: Serum cesium was significantly lower in schizophrenia patients as compared with controls. Serum cesium was significantly and inversely associated with CCL11 and TNF-α, but not IL-1β. Moreover, there were significant inverse associations between serum cesium levels and the BPRS, FF, HAM-D and SANS scores and positive correlations between cesium and neurocognitive probe results including the Tower of London, Symbol Coding, Controlled Word Association, Category Instances, Digit Sequencing Task, and List Learning tests. Conclusion: The results suggest that lowered serum cesium levels may play a role in the pathophysiology of SCZ, specific symptom domains including negative, depressive and fatigue symptoms, neurocognitive impairments (spatial working, episodic and semantic memory and executive functions) and neuro-immune pathways as well.
On the Solutions of Nonlinear Hybrid Fractional Integrodifferential Equations
Authors: Damag Faten H. , Kılıçman Adem , Al-Arioi Awsan T.
Published: February 2020

In the present work we study the existence of solutions for hybrid nonlinear fractional integrodifferential equations. We developed an algorithm by using the operator theoretical techniques in order to obtain the approximate solutions. The main results depend on the Dhage iteration method that were incorporated with the modern hybrid fixed point theorems. The approximate solutions were obtained by using Lipschitz conditions and weaker form of mixed partial continuity. Further, we provide some examples to explain the hypotheses and the related results.
Computational Models Using Multiple Machine Learning Algorithms for Predicting Drug Hepatotoxicity with the DILIrank Dataset
Authors: Ancuceanu Robert , Hovanet Marilena Viorica , Anghel Adriana Iuliana , Furtunescu Florentina , Neagu Monica , Constantin Carolina , Dinu Mihaela
Published: February 2020

Drug induced liver injury (DILI) remains one of the challenges in the safety profile of both authorized drugs and candidate drugs and predicting hepatotoxicity from the chemical structure of a substance remains a challenge worth pursuing, being also coherent with the current tendency for replacing non-clinical tests with in vitro or in silico alternatives. In 2016 a group of researchers from FDA published an improved annotated list of drugs with respect to their DILI risk, constituting “the largest reference drug list ranked by the risk for developing drug-induced liver injury in humans”, DILIrank. This paper is one of the few attempting to predict liver toxicity using the DILIrank dataset. Molecular descriptors were computed with the Dragon 7.0 software, and a variety of feature selection and machine learning algorithms were implemented in the R computing environment. Nested (double) cross-validation was used to externally validate the models selected. A number of 78 models with reasonable performance have been selected and stacked through several approaches, including the building of multiple meta-models. The performance of the stacked models was slightly superior to other models published. The models were applied in a virtual screening exercise on over 100,000 compounds from the ZINC database and about 20% of them were predicted to be non-hepatotoxic.
Sample Preservation and Plant Sex Prediction in White Guinea Yam (Dioscorea rotundata Poir.) Seedlings
Authors: Asfaw Asrat , Agre Paterne , Nwachukwu Chidinma , Olasanmi Bunmi , Obidiegwu Jude , Nwachukwu Emmanuel , Adebola Patrick , De Koeyer David
Published: February 2020

Methods for high-quality DNA extraction and knowledge of sex expression and flowering time are essential for applying genomic-assisted breeding and improve the success with hybridization in Guinea yam. A dioecious or monoecious pattern of flowering and sometimes non-flowering is a common phenomenon within and between the Dioscorea species. The flowering in yam plants raised from botanical seeds often takes an extended period, mostly till the first clonal generation after propagation from the tubers. The prolonged process of testing required to identify plant sex and flowering intensity in yam breeding often poses a challenge to realize reduced breeding cycle and apply genomic selection. This study assessed sample preservation methods for DNA quality during extraction and potential of DNA marker to diagnose plant sex at the early seedling stage in white Guinea yam. The predicted sex at the seedling stage was further validated with the visual score for the sex phenotype at the flowering stage. DNA extracted from leaf samples preserved in liquid nitrogen, silica gel, dry ice, and oven drying methods was similar in quality with a high molecular weight than samples stored in ethanol solution. Yam plant sex diagnosis with the DNA marker (sp16) identified a higher proportion of ZW genotypes (female or monoecious phenotypes) than the ZZ genotypes (male phenotype) in the studied materials with 74% prediction accuracy. The results from this study provided valuable insights on suitable sample preservation methods for quality DNA extraction and the potential of DNA marker sp16 to predict sex in white Guinea yam.
Microbial Patterns in Rumen Are Associated with Gain of Weight in Beef Cattle
Authors: Freitas Anderson , David Diego , Takagaki Beatriz , Wurdig Roesch Luiz Fernando
Published: February 2020

Ruminal microorganisms play a pivotal role in cattle nutrition. The discovery of the main microbes responsible for enhancing the gain of weight in beef cattle might be used in therapeutic approaches to increase animal performance and cause less environmental damages. Here, we examined differences in bacterial and fungal composition of rumen samples of Braford heifers raised in a natural grassland from Pampa Biome in Brazil. We aimed to detect microbial patterns in the rumen that could be correlated with the gain of weight. 16S and ITS1 genes were amplified from ruminal samples and sequenced to identify the closest microbial relatives within the microbial communities. A predictive model based on microbes responsible for the gain of weight was build and further tested using the entire dataset. The model detected a set of microorganisms associated with animals in the high gain of weight group, including the bacterial taxa RFN20, Prevotella, Anaeroplasma and RF16 and the fungal taxa Aureobasidium, Cryptococcus, Sarocladium, Pleosporales and Tremellales. Most of these organisms have been correlated to the production of substances that improve the ruminal digestion process. These findings provide new insights about cattle nutrition and suggest the use of these microbes to improve beef cattle breeding.
EFEKTIVITAS PENGGUNAAN E-LEARNING BERBASIS SCHOOLOGY DENGAN MENGGUNAKAN MODEL DISCOVERY LEARNING TERHADAP PRESTASI BELAJAR SISWA PADA MATA PELAJARAN SISTEM KOMPUTER KELAS X MULTIMEDIA SMK NEGERI 6 SURAKARTA PADA TAHUN PELAJARAN 2015/2016
Authors: Huurun’ien Kansha Isfaraini , Efendi Agus , Tamrin A. G.
Published: February 2020

Tujuan dari penelitian ini adalah untuk mengetahui (1) perbedaan prestasi belajar siswa antara kelas kontrol dengan kelas eksperimen yang diberikan treatment penggunaan e-learning berbasis schoology dengan menggunakan model discovery learning; (2) efektivitas penggunaan e-learning berbasis schoology dengan menggunakan model discovery learning dalam meningkatkan prestasi belajar siswa. Populasi penelitian ini adalah siswa kelas X multimedia SMK Negeri 6 Surakarta. Teknik pengambilan sampel yang digunakan random sampling. Metode penelitian ini menggunakan quasi eksperimental. Teknik pengumpulan data pada penelitian ini menggunakan metode observasi untuk mengetahui pengelolaan pembelajaran sebelum dan sesudah diberikan treatmen penggunaan e-learning berbasis schoology dengan menggunakan model discovery learning. Metode dokumentasi untuk mengetahui daftar nama, jumlah siswa, nilai harian serta bukti penelitian dengan menggunakan pengambilan gambar. Metode tes untuk mengetahui hasil pretest dan posttest. Analisis data yang digunakan uji non parametrik menggunakan mann whitney test dan wilcoxon sign rank test. Berdasarkan hasil penelitian, pertama terdapat perbedaan nilai posttest antara kelas kontrol dan kelas eksperimen setelah diberikan treatment berupa penggunaan e-learning berbasis schoology menggunakan model discovery learning, nilai sig lebih kecil dari taraf signifikan 0,05 yaitu 0,000  0,05. Kedua penggunaan e-learning berbasis schoology menggunakan model discovery learning lebih efektif, dengan peningkatan nilai gain sebesar 0,94. Sedangkan pembelajaran konvensional memberikan peningkatan nilai gain sebesar 0,74.

Kata Kunci : Efektivitas, E-learning, Schoology, Model discovery learning, Prestasi belajar siswa
EVALUASI PELAKSANAAN MICRO TEACHING DENGAN MENGGUNAKAN MODEL CIPP PADA PROGRAM STUDI PENDIDIKAN TEKNIK MESIN UNIVERSITAS SEBELAS MARET SURAKARTA
Authors: Cahyono Rohmat , Akhyar Muhammad , Saputro Herman
Published: February 2020

Tujuan dari penelitian ini adalah untuk mengevaluasi pelaksanaan micro teaching. Penelitian ini dilakukan di program studi Pendidikan Teknik Mesin Universitas Sebelas Maret. Penelitian ini menggunakan model CIPP (Context, Input, Process, Product). Populasi dari penelitian ini adalah mahasiswa pendidikan teknik mesin dan dosen pembimbing micro teaching pelaksanaan tahun 2016. Teknik pengumpulan data menggunakan angket yang disebar kepada seluruh responden, wawancara dengan sebagian responden, dan dokumentasi nilai akhir mata kuliah micro teaching. Validitas menggunakan fact finding yaitu validitas logika. Menggunakan fact finding maka uji reliabilitas tidak perlu dilakukan. Analisa skor menggunakan rata-rata yang akan dinilai berdasar kriteria penilaian. Hasil penelitian menunjukkan sebagian besar pelaksanaan micro teaching sudah baik, tetapi perlu ada perbaikan lagi pada beberapa indikator
Kata kunci: Evaluasi Program, Micro Teaching, CIPP
EVALUASI PELAKSANAAN PRAKTIK INDUSTRI DENGAN MENGGUNAKAN MODEL CIPP PADA PROGRAM STUDI PENDIDIKAN TEKNIK MESIN UNIVERSITAS SEBELAS MARET SURAKARTA
Authors: Riyanto Joko , Akhyar Muhammad , Harjanto Budi
Published: February 2020

Tujuan dari penelitian ini adalah untuk mengevaluasi: (1) konteks (context) Program Praktik Industri meliputi (a) tujuan Program Praktik Industri, (b) sasaran Program Praktik Industri, (c) relevansi Program Praktik Industri, (d) sistem pengelolaan Program Praktik Industri; (2) masukan (input) Program Praktik Industri yang meliputi (a) penyiapan pengelolaan Program Praktik Industri, (b) penyiapan kompetensi mahasiswa; (3) proses (process) pelaksanaan Program Praktik Industri yang meliputi (a) peran mahasiswa (b) peran dosen pembimbing (c) peran instruktur industri (d) hambatan pelaksanaan Program Praktik Industri; (4) produk (product) Program Praktik Industri meliputi (a) pengembangan personalitas mahasiswa (b) pengembangan keterampilan mahasiswa (c) kesiapan kerja mahasiswa (d) pengalaman inovatif mahasiswa (e) kepuasan mahasiswa. Penelitian ini menggunakan metode penelitian deskriptif evaluatif model CIPP (Context, Input, Process, Product).Sampel penelitian menggunakan teknik purposive sampling yaitu koordinator Program Praktik Industri, Dunia Industri (DU/DI), dan mahasiswa Program Studi Pendidikan Teknik Mesin pelaksana Program Praktik Industri periode 2015 dan periode 2016. Teknik pengumpulan data menggunakan angket, observasi, dan wawancara. Validitas yang digunakan dalam penelitian ini adalah validitas logika. Teknik analisis kuisioner yang digunakan dalam penelitian ini melalui analisis rata-rata yang dinilai berdasarkan kriteria penilaian. Hasil penelitian menunjukkan: (1) evaluasi terhadap konteks (context) Program Praktik Industri tergolong tinggi, aspek ini meliputi: (a) ketercapaian tujuan Program terhadap pelaksanaan Praktik Industri, (b) ketercapaian sasaran Program terhadap pelaksanaan Praktik Industri, (c) adanya relevansi Program Praktik Industri dengan Dunia Industri (DU/DI), (d) adanya sistem pengelolaan Program Praktik Industri yang baik; (2) evaluasi terhadap masukan (input) Program Praktik Industri tergolong cukup. Aspek masukan meliputi: (a) penyiapan pengelolaan Program Praktik Industri, (b) penyiapan kompetensi mahasiswa; (3) evaluasi terhadapproses (process) pelaksanaan Program Praktik Industri tergolong cukup. Aspek proses yang meliputi: (a) peran mahasiswa (b) peran dosen pembimbing (c) peran instruktur industri (d) hambatan pelaksanaan Program Praktik Industri; (4) evaluasi terhadap produk (product) Program Praktik Industri tergolong tinggi. Aspek produk meliputi: (a) pengembangan personalitas mahasiswa (b) pengembangan keterampilan mahasiswa (c) kesiapan kerja mahasiswa (d) pengalaman inovatif mahasiswa (e) kepuasan mahasiswa.

 
Kata kunci: Evaluasi Program, CIPP, Program Praktik Industri
The Skin Properties of Sites Predisposed to Pressure Ulcers in Bedridden Elderly Patients: A Cross-sectional Study
Authors: Kohara Hiroko Takeshima , Ikeda Mitsunori , Yokotani Kunihiko , Okawa Masami , Nishimoto Sanae
Published: February 2020

Background: Previous studies have not specifically measured skin characteristics at common sites of pressure ulcers in high-risk older patients. Therefore, this study aimed to clarify the physiological skin characteristics at common pressure ulcer sites and their relationship with pressure ulcer risk and demographic/laboratory data in bedridden older Japanese patients. Methods: Fifty-five older patients (32 female) with a mean age of 82.4 ± 9.8 years (range, 61-103 years) in a long-term care facility and 25 female Japanese university students with a mean age of 21.4 ± 1.3 years (range, 20-22 years) were recruited for the study. Skin surface temperature, epidermal water content, transepidermal water loss (TEWL), skin erythema/redness, skin elasticity, and skin thickness were measured noninvasively and compared between age groups. The sacral and two heel areas were evaluated as they constitute sites predisposed to pressure ulcers, while the mid-to-lower back area was designated as the control site. Additionally, the correlation between demographic/laboratory data and skin physiological indices was determined. Results: Elderly patients showed a low epidermal water content at both heels (right heel, 14.8 ± 9.1 arbitrary units, AU.; left heel, 14.4 ± 8.3 AU). TEWL remained acceptable at all sites in older patients despite the presence of dry skin (back, 7.1 ± 1.8 g/hm2; sacrum, 7.4 ± 3.0 g/hm2; right heel, 17.7 ± 7.1 g/hm2; left heel, 19.4 ± 8.1 g/hm2). Back (0.61 ± 0.13 AU) and sacral (0.67 ± 0.11 AU) skin elasticity and sacral skin thickness (0.97 ± 0.56 cm) were significantly lower than those of healthy young people (0.86 ± 0.04 AU, 0.87 ± 0.05 AU, and 2.27 ± 0.84 cm, respectively; p < .001 for all sites). Moderate positive correlations were observed between back skin elasticity and serum albumin level (r = .445, p < .001), and between sacral skin thickness and BMI (r = .506, p < .001) in older patients. Conclusions: Older patients have a lower epidermal water content and skin elasticity and thickness but not higher TEWL at sites predisposed to pressure ulcers. Moderate correlations were found between skin characteristics and demographic/laboratory data.
Associations between eating behaviors and muscle strength among Chinese adults: A population-based cross-sectional study
Authors: Ding Liang , Zhang Wenbo , Sun Xijun , Wang Yongxiang , Chen Shulei
Published: February 2020

Background: Poor eating behaviors are associated with imbalances in energy and food intake, which may directly or indirectly contribute to muscle strength loss. This study aimed to investigate the association between eating behaviors and muscle strength in Chinese adults. Methods: We designed a cross-sectional study of 2,036 Chinese individuals aged 25–68 years, conducted in 2017. Eating behaviors, including breakfast consumption, snacking after dinner, and eating rate, were assessed using a self-administered questionnaire. Muscle strength was determined by grip strength and assessed using a digital grip dynamometer. Results: After final adjustments for confounding factors, grip strength was measured as 35.2 (95% confidence interval [CI]: 34.6–35.8), 36.0 (95%CI: 35.6–36.4), and 36.9 (95%CI: 36.6–37.2) for those who skipped, occasionally ate, and regularly ate breakfast, respectively (p for trend < 0.001). Those who always, sometimes, and seldom snacked after dinner, respectively (p for trend <0.001), reported the following grip strength: 34.6 (95%CI: 33.9–35.2), 36.2 (95%CI: 35.8–36.6), and 36.8 (95%CI: 36.5–37.2). Significant associations were not found between eating rate and grip strength. Conclusions: Present study showed that higher frequency of breakfast consumption and lower frequency of snacking after dinner were associated with better muscle strength in Chinese adults. Therefore, eating behaviors may be involved in muscle function.
Idebenone protects against atherosclerosis in apolipoprotein E-deficient mice via activation of the Sirt3-SOD2-mtROS pathway
Authors: Jiang Wei , Geng Hongzhi , Lv Xiaoqing , Ma Jing , Lin Pengfei , Yan Chuanzhu
Published: February 2020

Background: Atherosclerosis, which is a form of chronic aortic disease, results from the accumulation and aggregation of oxidized low density lipoprotein（LDL）in the vessel walls, the development of neointima, the formation of a fibrous cap, and the migration of immune cells to the damaged vascular endothelium. Recent studies have shown that mitochondrial function is closely associated with the development and progression of atherosclerosis. Idebenone functions as an electron carrier and antioxidant, and previous studies have shown that it effectively clears oxygen-free radicals. In the current study, we demonstrate that idebenone could protect against atherosclerosis using apolipoprotein E-deficient mice. Methods: High-fat diet（HFD）and idebenone treatment with apolipoprotein E-deficient mice . A total of 60 mices were randomized into the following four groups: (1) HFD (2) idebenone-low dose (3) idebenone-medium dose and (4) idebenone-high dose for 16 weeks. The HUVECs were pretreated with endothelial cell medium in the presence or absence of 0.2 mM idebenone working solution for 3 h followed by exposure to 10 μM cholesterol for 24 h. Proteomics analysis was performed between the HFD group (n=3) and the high-dose idebenone group (n=3, concentration = 400 mg/kg/d).Results: Compared with the HFD group, Idebenone can suppresses the formation of atherosclerotic plaques and increases the stability of atherosclerotic plaques in apoE-/- mice; Compared with the control group, Idebenone can protects against endothelial cell damage and inhibits the production of mtROS in cholesterol mediated HUVECs; Idebenone could effectively inhibit the development and progression of atherosclerosis and the injury of endothelial cells through the SIRT3-SOD2-mtROS pathway.Conclusions: We showed that idebenone could act as a mitochondrial protective agent during the development and progression of atherosclerosis by inhibiting the activation of NLPR3 via the SIRT3-SOD2-mtROS pathway. Idebenone may be a promising therapy for patients with atherosclerosis in the future, as it can improve mitochondrial dysfunction and inhibit oxidative stress.
Comparison and overview of Wireless sensor network systems for Medical Applications
Authors: Mathur Avijit , Newe Thomas
Published: February 2020

The need for technology to assist in medical monitoring applications is becoming more necessary in society as the number of patients in hospital and clinics continues to grow. The demand on staff to monitor every individual consistently becomes necessary. Wireless sensor networks (WSN) are now being used to facilitate this on-demand monitoring both at the patients home and in the hospital/clinic environment. This paper looks at the basic parameters necessary for a medical based WSN with particular focus on communication platforms and their security. These parameters will be compared and contrasted, and the main components necessary to form an ideal medical WSN will be highlighted.
Light-Weight Addressing and Routing Schemes for Resource-Constrained WPAN Devices
Authors: Roy Uttam Kumar
Published: February 2020

Traditional heavyweight routing algorithms are not suitable for resource constrained IEEE 802.15.4 [15] complaint devices. Although, ZigBee [21] provided an addressing scheme and a table-free Tree routing algorithm for such devices, it has several limitations [6, 7, 8, 9].

In this paper, we have proposed a flexible, variable-length addressing scheme together with a new lightweight, table-free routing algorithm. The addressing scheme leverages the properties of prefix code and allows devices to have arbitrary number of children and does not also limit network depth. The routing algorithm uses simple mathematical and/or logical calculations to take routing decisions. Simulation and analytical results show that this flexible mechanism exhibits very low overhead and can be used for virtually all types of network topologies.
Towards High-Speed Raman Spectroscopy for Industrial Sorting Applications
Authors: Biasio M. de , Leitner R. , Balthasar D.
Published: February 2020

A real-time Raman mapping system for detecting and discriminating a range of industrially relevant materials such as glasses and various minerals is presented. The system is built from components that are suitable for industrial conditions. Together with a signal processing and a chemo-metric model, the system was shown to be capable of discriminating between the test materials. We argue that the approach is a novel alternative to established sorting sensors.
A Fuzzy Based Predictive Cluster Head Selection Scheme for Wireless Sensor Networks
Authors: Natarajan Hemavathi , Selvaraj Sudha
Published: February 2020

Clustering, an energy efficient approach is used in Wireless Sensor Network. Clustering involves cluster formation and Cluster Head Selection. As the Cluster Head is involved in carrying out the entire communication, a high energy node has to be selected as Cluster Head. In this paper, a novel predictive Fuzzy based Cluster Head selection algorithm is proposed. The proposal suggests a new input parameter, Rate of recurrent Communication apart from the standard parameters namely the Residual Power of Sensor Nodes, Degree of Neighboring Nodes, Distance between the Node and Base Station, Sensor Node Movement. In this approach, the fuzzy logic evaluates the Cluster Head Selection Probability which is based on the node’s previous communication history to decide the Cluster Head. The proposed algorithm is implemented using Matlab. The simulation results show that the proposed Cluster Head Selection technique is superior to other proposals.
High Frequency Giant Magnetoimpedance Effect of amorphous microwires for magnetic sensors applications
Authors: Zhukov A. , Talaat A. , Ipatov M. , Zhukova V.
Published: February 2020

We studied the Giant magnetoimpedance (GMI) effect and magnetic properties of amorphous Fe-Co rich magnetic microwires prepared by the Taylor-Ulitovski technique. We observed that these properties can be tailored either controlling magnetoelastic anisotropy of as-prepared Co-rich microwires or controlling their magnetic anisotropy by heat treatment. High GMI effect even at GHz frequencies has been observed in Co-rich microwires.
Modelling of Temperature Coefficient of Resistance of a Thin Film RTD Towards Exhaust Gas Measurement Applications
Authors: Maher Anthony , Velusamy Vijayalakshmi , Riordan Daniel , Walsh Joseph
Published: February 2020

Current research in the automotive industry sector focuses on the application of platinum thin film sensors for exhaust temperature measurement. The prime intention of this paper is to pioneer the design and development of Platinum/Rhodium (Pt/Rh) sensors for exhaust gas temperature measurement. The developed sensors were able to endure harsh temperature environments (up to 950° C). In addition, the Pt/Rh sensors resistivity response to temperature increase was described by a second order polynomial characteristic equation. This equation can be stored in the electronics incorporated in the engine management system. Therefore, the resistance reading of the Pt/Rh sensor in the exhaust system can be decoded as a temperature measurement.
An all-fiber current sensor based on magnetic fluid clad microfiber knot resonator
Authors: Li Xianli , Lv Fangxing , Wu Zhongying , Ding Hui
Published: February 2020

A novel optical current sensor based on microfiber knot resonator (MKR) with magnetic fluid (MF) as cladding is proposed and demonstrated in this paper. The operating principles, package technique and mounting method of the proposed sensor are introduced in detail. Moreover, the performances of the proposed sensor are demonstrated experimentally by detecting sinusoidal current with 50Hz and pulse current signals with rising time of 2.5μs respectively. The results have shown that the relationship between the sensor responding and the applied current intensity is approximately linear and the minimal detectable current is 10 Amps with SNR (Signal-to-noise ratio) as 3.
The Three-Dimensional Temperature Indication for the Reactor Core by Using Multiple Thermocouples
Authors: Ye Song Hae , Lee Sooill , Lim Heetaek , Lyou Joon , Kim Sungjin
Published: February 2020

The premise of accident mitigation lies in the accurate diagnosis of the accident. The serious accident, in which the core of the nuclear reactor at the nuclear power plant (NPP) is melted, is a very serious problem. Examples of this kind of accident may be found in the Fukushima accident. Therefore, a rapid incident response and accurate diagnosis is more important than anything. The ultimate goal of severe accident mitigation at a nuclear reactor is to maintain the confidentiality of the containment building and the cooling of the core meltdown in the reactor. Confirming the progressive state of diagnosis and the cooling of the reactor core when the serious accident occurs is a very important factor in the development of response strategies after the accident. Japan has taken various measures to deal with accidents after the nuclear accident of Fukushima. Strengthening the reliability of the instrumentation system is also included in the counterstrategies. Therefore, this paper presents the expected effects and the temperature distribution display method of the core by using an in-core instrumentation (ICI) with multiple thermocouples. This research project is currently underway in Korea.
Quantitative Evaluation of an FPGA based Wireless Vibration Monitoring System in relation to Different Sampling Rates
Authors: Shahzad Khurram , Oelmann Bengt
Published: February 2020

In order to achieve the high-processing performance required in typical computationally intensive high-sample rate monitoring applications, a Field Programmable Gate Array (FPGA) is often used as a hardware accelerator. Given the design complexity, increased power consumption and additional cost of an FPGA, it is desirable to determine the sampling rates for which the use of an FPGA as hardware accelerator results in most effective solution. For this purpose, a computationally intensive application is realized on an FPGA based architecture so as to determine the sampling rates for which it achieves the highest performance and consumes the least amount of energy as compared to that of a micro-controller based architecture. Based on the measured performance and energy consumption for a computationally intensive application, tri-axes/three-channel vibration based condition monitoring, the results suggest that the FPGA based architecture is the most appropriate solution for sampling frequencies of 4 kHz and above.
Numerical analysis of ultrasonic guided waves propagation in highly attenuative viscoelastic material
Authors: Hong Li , Qingfeng Wang
Published: February 2020

The propagation of ultrasonic guided waves in viscoelastic isotropic material has been investigated. Based on the plane theory, a numerical model of the guided waves propagating is developed in the frequency domain by employing the SFEM (spectral finite element method). To verify the proposed method, thin bitumen on the steel substrate is examined and compared with the single plate in terms of the dispersion and attenuation. From the dispersion and attenuation of the displacement curves, the propagating properties can be obtained, which depends not only on the viscous parameter, but also on those of the substrate. The guided wave attenuates rapidly at the location near the source, and with the receiver distance increasing, it becomes slowly, compared with single bitumen, the attenuation of amplitude for the guided waves propagating in the viscoelastic is tend to gently. The phenomenon shows propagation distance will increase in bilayer material cause of the substrate influence.
Zirconia potentiometric oxygen sensor activation using NEMCA
Authors: Shuk Pavel , Jantzt Robert
Published: February 2020

NEMCA known for the increasing the catalytic activity/selectivity of the gas exposed electrodes was investigated for the potentiometric zirconia oxygen sensor activation. Electrochemical promotion of O2-sensors with Pt-cermet electrodes aged in the field was significant with up to 5 times in the impedance reduction. Stability test on the NEMCA activated °2 -sensors was showing just a minor impedance increase. Sensor response time was reduced by NEMCA effect by ~5-10% with up to 3 times signal noise reduction on the aged O2-sensors.
Utilizing wave polarization in microwave characterization of heterogeneous anisotropic materials with application to the wood industry
Authors: Bogosanović Mirjana , Emms Gant
Published: February 2020

This paper presents a novel approach to microwave non-contact, non-destructive testing of wood, investigating additional indicators of wood structure, in particular the significance of wave polarization in transmission measurements. Contribution of wave polarization to wood characterization is studied, considering detection of rapid and gradual variations in wood structure, determination of moisture content and density distribution along the sample, as well as bulk properties detection. A set of microwave sensors in a collinear arrangement was used in two orthogonal linear polarizations. Significant findings are reported, in particular polarization dependence of moisture related attenuation, as well as improved defect detection accuracy when measurements in two orthogonal linear polarizations are considered. In addition, sorting wood samples into categories is considered and the advantages of this approach are presented.
Radio Interferometric Object Tracking
Authors: Zachár Gergely , Simon Gyula , Maróti Miklós
Published: February 2020

This paper proposes a novel object tracking method using radio interferometry. The proposed low cost solution is able to track objects, equipped with a radio receiver, in real time, using only simple infrastructure nodes with radio transceivers at fixed and known locations. The localization method has low computational requirements and does not require any preliminary knowledge of, or measurements in the space where tracking is performed. The paper introduces the novel method and preliminary test results are also presented.
Wavelet Transform Smoothing Filters for Metal Oxide Gas Sensor Signal Cleaning
Authors: Bassey Enobong , Whalley Jacqueline , Sallis Philp , Prasad Krishnamachar
Published: February 2020

This paper reports on a series of experiments to evaluate the methods for feature extraction and denoising the digital signal from thin film zinc oxide-tin dioxide composite gas sensor devices. The aim was to find a method that not only cleaned the signal but also maintained the shape, precision and resolution of the signal. It was found that the Savitzky–Golay smoothing filter method gave the best, smoothed and cleaned, approximation of the sensor response regardless of the thin film composition, target gas concentration or operating temperature.