bluuebunny/crossref_metadata_2025 huggingface dataset:
Structural behavior of shear connectors embedded in different types of concrete
Authors: Wardi Adil Hadi , Tunç Gökhan , Ibraheem Khalil
Published: December 2020

Push-out tests are used to determine shear connectors’ properties where two small reinforced concrete walls are attached to the top and bottom flanges of an I-section through four shear studs located on both its flanges. In this study, the structural behavior of shear connectors was examined by testing a total of 36 push-out specimens. In these specimens, various test parameters were used. The types of shear connectors and their strengths, their connection types, and the strength of the concrete in which they were embedded were all investigated. Headed, L-shaped, and C-shaped studs were selected in this experimental study to represent different types of shear connectors. These shear connectors were assumed to be either ordinary or high strength steel-embedded in three different types of concrete: ordinary, high strength, and reactive powder concretes. In these tests, the shear connectors were connected through welding or epoxy bonding. The objective of this study was to investigate the structural behaviors of these different types of shear connectors by focusing on their shear force capacities and slip values. The test results indicate that the reactive powder concrete increased the mechanical properties of concrete as the concrete age increased. The specimens with C-shaped studs made of high-strength steel with welded studs embedded in normal weight, high strength and reactive powder concretes, generated the maximum shear resistance values.
Numerical investigation of sloshing with baffles having different elasticities
Authors: Demir Abdullah , Dinçer Ali Ersin
Published: December 2020

Liquid tanks are indispensable members of civil engineering structures like liquid petroleum gas storage tanks and aerospace structures. Fluids can act unpredictably under earthquake excitation or dynamic loads. Loads applied to tank changes during motion and there can be deformations at the tank or even at the structure where the tank is placed. This is called sloshing and many researchers study the behavior of it. In this research, behavior of baffles having different elastic modulus is investigated by a fluid-structure interaction (FSI) method. The numerical method is a fully coupled FSI method proposed by the authors, recently. The method, which is verified by many problems, uses smoothed particle hydrodynamics (SPH) for fluid domain, finite element method (FEM) for structural domain and contact mechanics for coupling of these two domains. In analysis, a tank and a baffle having constant initial geometry are excited by harmonic motions. Elasticity of baffle is changed to investigate the effect on sloshing. Results show that tip displacement of baffle has linear relation with its elasticity for higher rigidities. In contrast, tip displacement of baffle has constant tip displacement for lower rigidities.
Seismic risk priorities of site and mid-rise RC buildings in Turkey
Authors: Işık Ercan , Karaşin İbrahim Baran , Demirci Alper , Büyüksaraç Aydın
Published: December 2020

Especially, the large-scale loss of life and property caused by the significant earthquakes in recent years has brought the importance of research and measures to be taken on this issue. Determining and analysing the ever-increasing building stock of the cities and detecting and managing all information related to buildings are important in terms of spatial planning and urban transformation. This study aims to determine tectonic characteristics calculating a and b values of Gutenberg- Richter magnitude-frequency relation which forms the basis of earthquake statistics for all cities in Turkey and the reinforced-concrete buildings which are primarily risky in terms of urban transformation. For this purpose, a total of 1620, 5-storey buildings from all provinces of Turkey were assessed. Twenty reinforced concrete buildings from each province were taken into consideration which has 5-stories. The first stage evaluation method specified in the principles regarding the identification of risky buildings issued in 2013 by the Republic of Turkey, Ministry of Environment and Urbanization was used in this study. The performance scores for 1620 buildings were calculated by using this method. A risk priority map was created for the provinces, taking into account for these buildings. The study aims to determine risk priorities of site and mid-rise reinforced-concrete buildings among the cities. The results obtained were interpreted and recommendations were made.
Structural performance of URM school buildings during the 2019 Albania earthquakes
Authors: Hysenlliu Marjo , Bilgin Huseyin , Bidaj Altin , Leti Marsed
Published: December 2020

This paper aims to study the seismic performance of school buildings, which have been built in accordance with template unreinforced masonry [URM] school projects in Albania. For this purpose, the most widely used two template designs which were damaged during the 2019 Durrës (Albania) Earthquakes, have been selected. Analytical models of each school were prepared following the experimental data on the quality of the masonry constitutive components of the selected school buildings. Geotechnical investigations were deployed to obtain the soil characteristics of the area where the schools’ foundation are located. Nonlinear static analyses have been performed to obtain the seismic capacity, the performance point and the damage level states. The performance-based method has been used to that purpose. The detailed examination of capacity curves and performance evaluation identified deficiencies and weak parts of the school building blocks. Results have shown that existing school buildings constructed pre-modern codes are far from satisfying the required performance criteria, suggesting that urgent response and necessary measure should be put into action.
Manajemen Strategik Keunggulan Madrasah Aliyah Negeri di Kalimantan Timur
Authors: Mahmud Muchammad Eka , Suratman Suratman
Published: December 2020

Having a specific excellence that is different to other educational institutions can be an attractiveness of madrasah. This excellence needs to be managed properly to attract societies and as one of benchmarks of educational institution qualities. Educational institutions in East Kalimantan such as MAN 2 Samarinda, MAN 2 Samarinda, MAN 2 Kutai Kertanegara, and MAN Balikpapan have implemented strategic management in managing their excellence. This research aimed to find out the excellence of each madrasah and strategic management to manage the excellence in MA in East Kalimantan. This is Field work Research with qualitative approach. Data collection techniques used observation, interviews and documentations. Data analysis techniques used a qualitative analysis technique consisting of data reduction, data model (data display), and conclusing drawing/verification. Based on data, the strategic management considering the madrasah excellence in East Kalimantan is as following: 1) Skill Program based Madrasah has an excellence in the curriculum contents as elective programs for students such as culinary art skills, fashion (sewing skills), light vehicle automotive, computer science, and welding skills. The strategic management implemented is cooperative strategy to build cooperation with and credibility from business field and industry, 2) Religious Program based Madrasah has an excellence in academic by strengthening religious matters, sciences and technology, foreign languages and yellow book. The forms of strategic management used are cooperative strategy and competitive strategy, 3) Excellent Program based Madrasah has an excellence in the students’ achievements from extracurricular activities, particularly martial arts and scientific writing competition. The forms of strategic management are the combination of cooperative strategy and competitive strategy, 4) Regular Program based Madrasah has excellent achievements in scientific writing competition and Syiar Anak Negeri program. The strategic management developed is professional extracurricular coaching by implementing strategic management of cooperative and competitive.
Repeatability of two semi-automatic artificial intelligence approaches for tumor segmentation in PET
Authors: Pfaehler Elisabeth , Mesotten Liesbet , Kramer Gem , Thomeer Michiel , Vanhove Karolien , de Jong Johan , Adriaensens Peter , Hoekstra Otto S. , Boellaard Ronald
Published: December 2020

Background: Positron Emission Tomography (PET) is routinely used for cancer staging and treatment follow up. Metabolic active tumor volume (MATV) as well as total MATV (TMATV - including primary tumor, lymph nodes and metastasis) and/or total lesion glycolysis (TLG) derived from PET images have been identified as prognostic factor or for the evaluation of treatment efficacy in cancer patients. To this end, a segmentation approach with high precision and repeatability is important. However, the implementation of a repeatable and accurate segmentation algorithm remains an ongoing challenge. Methods: In this study, we compare two semi-automatic artificial intelligence (AI) based segmentation methods with conventional semi-automatic segmentation approaches in terms of repeatability. One segmentation approach is based on a textural feature (TF) segmentation approach designed for accurate and repeatable segmentation of primary tumors and metastasis. Moreover, a Convolutional Neural Network (CNN) is trained. The algorithms are trained, validated and tested using a lung cancer PET dataset. The segmentation accuracy of both segmentation approaches is compared using the Jaccard Coefficient (JC). Additionally, the approaches are externally tested on a fully independent test-retest dataset. The repeatability of the methods is compared with those of two majority vote (MV2, MV3) approaches, 41%SUVMAX, and a SUV>4 segmentation (SUV4). Repeatability is assessed with test-retest coefficients (TRT%) and intraclass correlation coefficient (ICC). An ICC>0.9 was regarded as representing excellent repeatability.Results: The accuracy of the segmentations with the reference segmentation was good (JC median TF: 0.7, CNN: 0.73) Both segmentation approaches outperformed most other conventional segmentation methods in terms of test-retest coefficient (TRT% mean: TF: 13.0%, CNN: 13.9%, MV2: 14.1%, MV3: 28.1%, 41%SUVMAX: 28.1%, SUV4: 18.1% ) and ICC (TF: 0.98, MV2: 0.97, CNN: 0.99, MV3: 0.73, SUV4: 0.81, and 41%SUVMAX: 0.68).Conclusion: The semi-automatic AI based segmentation approaches used in this study provided better repeatability than conventional segmentation approaches. Moreover, both algorithms lead to accurate segmentations for both primary tumors as well as metastasis and are therefore good candidates for PET tumor segmentation.
Fusion or gemination? A radiologic approach
Authors: De Castro Tamara Fernandes , Miyahara Glauco Issamu , Ikuta Carla Renata Sanomiya , Salzedas Leda Maria Pescinini
Published: December 2020

A supernumerary tooth is an entity in addition to the normal series of teeth that, although rare, can be fused to a tooth, whether deciduous or permanent. Diagnosis and management in cases involving supernumerary teeth in the anterior region of the maxilla are often challenging. The clinical examination associated with the radiographic examination is decisive for the diagnosis and planning of cases. This article describes a case of unilateral fusion of a supernumerary tooth to a permanent upper lateral incisor, in which clinical and radiographic diagnosis was essential for a conservative approach.

Descriptors: Diagnosis; Fused Teeth; Tooth, Supernumerary.

References

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Zhu M, Liu C, Ren S, Lin Z, Miao L, Sun W. Fusion of a supernumerary tooth to right mandibular second molar: a case report and literature review. Int J Clin Exp Med. 2015;8(8):11890-95.

Rudagi K, Rudagi BM, Metgud S, Wagle R. Endodontic management of mandibular second molar fused to a supernumerary tooth, using spiral computed tomography as a diagnostic aid: a case report. Case Rep Dent. 2012;2012:614129. 

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Kumar V, Pandey V, Rohini G, Jyoti B. Fusion Between Maxillary Premolar and A Supernumerary Tooth: A Rare Case Presentation. J Clin Diagn Res. 2015;9(11): ZJ03-4.

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De Siqueira VC, Braga TL, Martins MA, Raitz R, Martins MD. Dental fusion and dens evaginatus in the permanent dentition: literature review and clinical case report with conservative treatment. J Dent Child (Chic) 2004;71:69-72. 

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Estimating the population mean using a continuous sampling design dependent on an auxiliary variable
Authors: Wywiał Janusz L.
Published: December 2020

Continuous distribution of variables under study and auxiliary variables are considered. The purpose of the paper is to estimate the mean of the variable under study using a sampling design which is dependent on the observation of a continuous auxiliary variable in the whole population. Auxiliary variable values observed in this population allow to estimate the inclusion density function of the sampling design. The variance of the continuous version of the Horvitz-Thompson estimator under the proposed sampling design is compared with the variance of the mean of a simple random sample. The accuracy of the estimation strategies is analysed by means of simulation experiments.
Some linear regression type ratio exponential estimators for estimating the population mean based on quartile deviation and deciles
Authors: Prasad Shakti
Published: December 2020

This paper deals some linear regression type ratio exponential estimators for estimating the population mean using the known values of quartile deviation and deciles of an auxiliary variable in survey sampling. The expressions of the bias and the mean square error of the suggested estimators have been derived. It was compared with the usual mean, usual ratio (Cochran (1977)), Kadilar and Cingi (2004, 2006) and Subzar et al. (2017) estimators. After comparison, the condition which makes the suggested estimators more efficient than others is found. To verify the theoretical results, numerical results are performed on two natural population data sets.
A Bayesian analysis of complete multiple breaks in a panel autoregressive (CMB-PAR(1)) time series model
Authors: Agiwal Varun , Kumar Jitendra , Shangodoyin Dahud Kehinde
Published: December 2020

Most economic time series, such as GDP, real exchange rate and banking series are irregular by nature as they may be affected by a variety of discrepancies, including political changes, policy reforms, import-export market instability, etc. When such changes entail serious consequences for time series modelling, various researchers manage this problem by applying a structural break. Thus, the aim of this paper is to develop a generalised structural break time series model. The paper discusses a panel autoregressive model with multiple breaks present in all parameters, i.e. in the autoregressive coefficient and mean and error variance, which is a generalisation of various sub-models. The Bayesian approach is applied to estimate the model parameters and to obtain the highest posterior density interval. Strong evidence is observed to support the Bayes estimator and then it is compared with the maximum likelihood estimator. A simulation experiment is conducted and an empirical application on the SARRC association’s GDP per capita time series is used to illustrate the performance of the proposed model. This model is also extended to a temporary shift model.
Comparison of selected tests for univariate normality based on measures of moments
Authors: Domański Czesław , Szczepocki Piotr
Published: December 2020

Univariate normality tests are typically classified into tests based on empirical distribution, moments, regression and correlation, and other. In this paper, power comparisons of nine normality tests based on measures of moments via the Monte Carlo simulations is extensively examined. The effects on power of the sample size, significance level, and on a number of alternative distributions are investigated. None of the considered tests proved uniformly most powerful for all types of alternative distributions. However, the most powerful tests for different shape departures from normality (symmetric short-tailed, symmetric long-tailed or asymmetric) are indicated.
Quantas vidas tem Gisberta?: imagem, mídia e arquivo na narrativa contemporânea
Authors: Aires Athayde Manaíra
Published: December 2020

In early 2006, fourteen Portuguese teenagers murdered Gisberta Salce, a Brazilian transgender woman, in Porto. A long and emotional criminal trial followed. Since then, several literary and artistic works inspired by Gisberta’s life and tragic death have emerged in both Portugal and Brazil. In the present article, I argue first that these works are intertextually related; I then show how they are connected through a contemporary artistic, social, and political ecology. At the center of this ecology—besides the image of Gisberta herself—is the complex relation between art, technology, and media in a digital world marked by a rapid transnational flow of information and new modes of archival design.
Imperial Debris: Reflections on the Lisbon Cityscape in Contemporary Portuguese Fiction
Authors: Martinho Ferreira Patrícia
Published: December 2020

This essay focuses on the literary image of contemporary Lisbon. Through an analysis of the anthology Lisbon Tales and Trails (2017) and Djaimilia Pereira de Almeida’s Luanda, Lisboa, Paraíso (2018), I examine how Lisbon’s representation on a global stage exposes the complexities and ambiguities of a metropolitan area deeply connected to the legacies of empire. Moving through fictional texts from the city center to the suburban periphery, I offer a focused reflection on Lisbon’s postcolonial/post-imperial ethnoscape.
Transcendence and Abjection in Vergílio Alberto Vieira’s Cleptopsydra
Authors: Simon Robert
Published: December 2020

In the present essay, I examine Portuguese poet Vergílio Alberto Vieira’s 2018 collection, Cleptopsydra, an explicit parody on Camilo Pessanha’s Clepsidra (1920). Within the collection, the poetic voice moves beyond the rigidity of Pessanha’s form through a series of sublime, transcendent, but ultimately earthbound symbols. This tension between form, symbol, and transcendence likewise exists in the work of several of Vieira’s contemporaries, and I suggest an openly transnational and translinguistic link between them. Finally, I discuss how contemporary Portugal has come to serve as both a challenge and a point of articulation for Vieira’s poetics.
A Bridge to Portugal: Language and Identity in Bridgeport, CT
Authors: Scetti Fabio
Published: December 2020

Here I present the results of BridgePORT, an ethnographic study I carried out in 2018 within the Portuguese community of Bridgeport, CT (USA). I describe language use and representation among Portuguese speakers within the community, and I investigate the integration of these speakers into the dominant American English speech community. Through my fieldwork, I observe mixing practices in day-to-day interaction, while I also consider the evolution of the Portuguese language in light of language contact and speakers’ discourse as this relates to ideologies about the status of Portuguese within the community. My findings rely on questionnaires, participant observation of verbal interaction, and semi-structured interviews. My aim is to show how verbal practice shapes the process of identity construction and how ideas of linguistic “purity” mediate the maintenance of a link to Portugal and Portuguese identity.
Recitações: Bandolim de Adília Lopes
Authors: Duarte Ferreira Diana
Published: December 2020

Borrowing the notion of “projet d’ensemble” from Roland Barthes’s Critique et verité, this essay proposes a critical analysis of Adília Lopes’s Bandolim (2016). Two of the procedures that configure the book’s interior are outlined on the cover: text as sound and text as image. The metaphor of the mandolin and its performative demands relates to Eliot’s ideas about tradition and individuality and describes Lopes’s approach to poetry. Through a close reading of poems in the collection, I argue that Bandolim performs on the infinity of unity while representing the unity of infinity.
Loving Nature in João Guimarães Rosa: The Non-human as 'amável'
Authors: Brock Ashley
Published: December 2020

In the present article, I locate an implicit environmentalism JoãoGuimarães Rosa’s writing from the 1950s and 1960s. This sensibility is easy tomiss, in part because it transposes political debates on damage inflicted in thename of development and progress onto the affective-ethical plane; however, itdoes so in a way that resists sentimentality or projecting a misplaced innocenceonto the non-human world. Focusing on emotional relationships between humansand non-humans, I read “As margens da alegria” and “Os cimos” as expressingan eco-critical discourse that was already latent in Grande sertão: veredas.Recasting the natural world as a site of both unfathomable otherness and relationsof tenderness, Guimarães Rosa presents the emotional hold that nature has onhumans and the cost of cleaving oneself from it—a cost that includes diminishingthe human capacity for delight, wonder, and eros.
Baptista, Abel Barros, Clara Rowland, and Pedro Meira Monteiro, editors. Esse Aires. Peixe-Elétrico Ensaios, 2020.
Authors: Duarte Ferreira Diana
Published: December 2020

Esse Aires surge em formato eletrónico, reunindo as comunicações do encontrohomónimo lisboeta de 2017 dedicado ao Conselheiro Aires. O título do livro é feliz ao retomar o dístico do capítulo XII de Esaú e Jacó: o pronomedemonstrativo implicando distanciamento e a letra mais sinuosa do alfabetocondizem com a figura enigmática do protagonista machadiano tardio.Personagem autorizada em Esaú e Jacó e autor personificado no Memorial de Aires, o Conselheiro é, como o palíndromo, legível em inversos sentidos. Ambosos romances se pautam, a nível formal e temático, por gestos de apagamento etruncagem.
Attitudes towards Physics Subjects based on the Norms of Scientists, Attitudes towards Investigations in Physics and The Adoption of Scientific Attitudes from Students of SMA N 11 Jambi City
Authors: Astalini Astalini , Kurniawan Dwi Agus , Farida Linda Z.N. , Hendri Menza
Published: December 2020

The purpose of this study is to describe student attitudes toward physics based on the indicators of scientific normality, attitudes toward inquiry in physics and adoption of students' scientific attitudes. The type of research used is quantitative type with survey method. This research subject are 235 students from science major in Senior High School 11 Jambi city. The instruments in this research is a questioner by Darmawangsa (2018). The results show that attitudes of high school 11 students tend to be good with a scientific normality category of 47%, attitudes toward inquiry in physics by 53% and adoption of scientific attitudes by 63%
DESAIN E-DIAGNOSTIC TEST UNTUK ANALISIS PEMAHAMAN KONSEP PADA MATERI REDOKS DAN TATA NAMA SENYAWA
Authors: Kamila Naila Faza , M.Si. Dr. Jumaeri
Published: December 2020

Kesulitan belajar peserta didik dalam memahami konsep kimia perlu diidentifikasi dengan sebuah instrumen evaluasi yang tepat. Untuk itu penelitian ini bertujuan untuk mengetahui kelayakan dan keefektifan pengembangan instrumen e-diagnostic test berupa three tier multiple choice (TTMC) untuk menganalisis ketercapaian kompetensi dasar ranah kognitif dan pemahaman konsep. Instrumen tersebut terdiri dari tiga tingkat, pertama mengenai jawaban, kedua mengenai alasan, dan ketiga mengenai keyakinan. Penelitian ini merupakan penelitian pengembangan dengan metode Plomp yang meliputi beberapa fase yaitu fase investigasi awal, desain, realisasi, tes dan evaluasi, serta implementasi. Subjek penelitian ini adalah peserta didik kelas X SMA Islam Sultan Agung 1 Semarang. Hasil penelitian menunjukkan instrumen yang dikembangkan layak dengan hasil validasi isi oleh pakar dan validasi konstruk melalui uji skala kecil dan besar. Profil paham konsep tertinggi ditunjukkan oleh IKD-5 yaitu sebesar 61,02%. Profil miskonsepsi tertinggi ditunjukkan oleh IKD-4 yaitu sebesar 69,49%. Dan profil tidak paham konsep tertinggi ditunjukkan oleh IKD-3 yaitu sebesar 26,27%.  Hasil analisis profil pemahaman konsep secara keseluruhan pada materi redoks dan tata nama senyawa menunjukkan 37,85% peserta didik paham konsep, 43,84% peserta didik miskonsepsi, dan 18,30% peserta didik tidak paham konsep.
Profil Kemampuan Representasi Matematis Siswa SMP ditinjau dari Self Efficacy
Authors: Setyawati Rina Dwi
Published: December 2020

ABSTRAKPenelitian ini bertujuan untuk mengetahui profil kemampuan representasi matematis siswa SMP ditinjau dari self efficacy. Jenis penelitian ini merupakan penelitian kualitatif deskriptif. Subjek yang di ambil adalah 3 siswa kelas IX di SMP Negeri 2 Kaliwungu semester gasal tahun ajaran 2020/2021 yang masing-masing mempunyai self efficacy tinggi, self efficacy sedang, dan self efficacy rendah. Pengumpulan data yang dilakukan yaitu dengan skala self efficacy, tes tertulis, wawancara dan dokumentasi. Teknik analisis data dilakukan dengan 3 tahapan yaitu reduksi data, penyajian data, penarikan kesimpulan/verifikasi. Keabsahan data menggunakan triangulasi metode yaitu membandingkan hasil tes kemampuan representasi dengan hasil wawancara. Analisis dikembangkan berdasarkan indikator kemampuan representasi matematis dengan memperhatikan self efficacy yang dimiliki. Berdasarkan hasil analisis, diketahui bahwa subjek dengan self efficacy tinggi juga memiliki kemampuan representasi tinggi. Subjek dengan self efficacy sedang juga memiliki kemampuan representasi sedang. Subjek dengan self efficacy rendah juga memiliki kemampuan representasi rendah.ABSTRACTThis study aims to determine the profile of the mathematical representation ability of junior high school students in terms of self-efficacy. The type of this research is descriptive qualitative. The subjects were 3 grade IX students at SMP Negeri 2 Kaliwungu in the odd semester of the 2020/2021 school year, each of whom had high self-efficacy, moderate self-efficacy, and low self-efficacy. Data collection was carried out using a self-efficacy scale, written tests, interviews, and documentation. The data analysis technique was executed in 3 stages, namely data reduction, data presentation, drawing conclusions / verification. The validity of the data used triangulation method, by comparing the results of the representation ability test with the results of the interview. The analysis is developed based on the indicator of mathematical representation ability by paying attention to the owned self-efficacy. Based on the results of the analysis, it is known that subject with high self-efficacy also has high representation abilities. Subject with moderate self-efficacy also has moderate representation abilities. Subject with low self-efficacy also has low representation skills.
Adsorpsi Logam Ni (II) pada Adsorben ‘Ramah Lingkungan’ Asam Humat Kotoran Kuda
Authors: Rohmatullaili Rohmatullaili
Published: December 2020

Ekstraksi asam humat dari kotoran kuda telah dilakukan dengan prosedur standar International Humic Substance Society (IHSS) di bawah atmosfer udara.  Penelitian ini dilakukan untuk memanfaatkan asam humat kotoran kuda (AHKK) sebagai adsorben limbah logam Ni (II). Dugaan awal adanya Asam Humat dalam kotoran kuda dikarenakan kandungan lignin di dalamnya. Persentase ekstraksi asam humat murni dari kotoran kuda mencapai 0,4%. Interaksi AHKK dengan logam Ni(II) dilakukan dalam larutan. Aspek adsorpsi yang dipelajari meliputi pengaruh pH, waktu kontak, kinetika, kapasitas adsorpsi, dan model isoterm adsorpsi Asam Humat Kotoran Kuda terhadap logam Ni (II). Adsorpsi logam Ni (II) pada AHKK mengikuti model isoterm adsorpsi Langmuir. Hasil penelitian menunjukkan bahwa Asam Humat dapat diekstraksi dari kotoran kuda, dan dapat mengadsorpsi logam Ni (II) pada situs aktifnya. Adsorpsi yang terjadi hanya pada lapisan tunggal, yang berarti situs aktif pada permukaan adsorben memiliki kemampuan adsorpsi yang sama dan terdistribusi secara merata.
The Identification of Electrolyte Property of Humus-Contained Andosol Soil Using Cu-Zn Electrodes
Authors: Firdaus Irvan Maulana , Masyitoh Diva N.M.D. , Azizah Tharra A.N. , Febiyanto Febiyanto
Published: December 2020

This study investigated the electrolyte property of humus-contained andosol soil using Volta cell. The electrodes that are used were Cu and Zn for cathode and anode, respectively. This research was done by varying electrode area and distance between Cu and Zn electrodes. The varied electrode area was 20, 30, and 40 cm2, whereas the electrode distance was 3, 4, and 5 cm. Then, the current and voltage profiles of Volta cell system were measured using a digital multimeter. The result showed that humus-contained andosol soil has an electrolyte property. Electrolyte property of andosol soil might be due to the humus substance that has a high cationic-exchange capacity. Besides, it showed that the increase of the electrode area, the current and voltage were increased gradually. In contrast, the increase in current and voltage could be found by the decrease of electrode distance. In addition, the use of 24-Volta cells system enhancing current and voltage compared to a single cell. It suggests that the increase of current and voltage was relatively proportional to the number of Volta cell. Therefore, this research can be a reference for the identification of electrolyte property of natural or waste materials.
Pengaruh Adsorben Sebagai Media Filter dalam Menurunkan Kadar Timbal dalam Matrik Air Sungai
Authors: Rachmawati Nurmeily
Published: December 2020

Usaha untuk mendapatkan air bersih dapat dilakukan dengan melakukan proses filterisasi. Salah satu sumber air yang dimanfaatkan untuk mendapatkan air bersih adalah air sungai. Sungai Cisadane yang terletak di Kota Tangerang ditemukan kadar logam timbal dengan kadar yang melebihi ambang batas baku mutu. Oleh sebab itu diperlukan suatu usaha untuk menurunkan kontaminan logam timbal dalam air sungai tersebut. Tujuan penelitian ini yaitu mendapatkan informasi bagaimana adsorben alami dapat dimanfaatkan sebagai media filter dalam menurunkan kontaminan logam timbal tersebut. Metode penelitian ini merupakan ekperimental laboratorium dengan merancang media filter yang berisikan adsorben alami. Jumlah adsorben yang digunakan berjumlah 8 yaitu arang aktif (AA), zeolite (Z), sekam padi bakar (SPB), pasir silica (PS), jerami padi (JP), serbuk kayu (SK), sekam padi (SP), dan serabut kelapa (CH). Hasil yang diperoleh terjadi penurunan kontaminan logam berat dikedelapan adsorben yang digunakan. Adsorben zeolite, serbuk kayu, dan serabut kelapa mampu menurunkan kontaminan logam berat sebesar 90% dari konsentrasi awal logam timbal yang ditambahkan kedalam matrik air sungai tersebut. Berdasarkan uji statistic paired t-test juga ditemukan perbedaan yang nyata antara sebelum dan sesudah filterisasi di kedelapan adsorben tersebut yang ditunjukkan dengan nilai Sig (2-tailed) < α = 0,025.
Studi Density Functional Theory (DFT) Pengaruh Co-doping Zn dan N pada TiO2 Anatas
Authors: Shofiyullah Muhammad , Udaibah Wirda , Fitriani Ika Nur
Published: December 2020

Titanium dioksida (TiO2) merupakan salah satu bahan yang menjanjikan yang memenuhi persyaratan fotokatalis. Penelitian ini mempelajari pengaruh doping Zn dan N pada struktur geometri dan elektronik TiO2 anatas. Untuk mengetahui struktur dan proses kinerja fotokatalitik digunakan perhitungan density functional theory (DFT) dengan algoritma generalized gradient approximation (GGA) menggunakan parameterisasi Perdew-Burke-Ernzerhof (PBEsol).  Perhitungan struktur elektronik menggunakan parameter Hubbard U. Setelah optimasi terjadi distorsi volume kisi doping Zn  1,011  Å, doping N 1,209 Å dan co-doping Zn-N 1,646 Å. Data tersebut menunjukkan bahwa doping dapat mempengaruhi perubahan struktural. Perhitungan struktur elektronik menghasilkan celah pita TiO2 murni sebesar 3,18 eV, kemudian terjadi penyempitan celah pita yang disebabkan oleh dopan. Celah pita doping Zn 2,9  eV, doping N 2,78 eV dan co-doping Zn-N 2,74 eV. Struktur elektronik baru hasil doping  tidak hanya menyebabkan penyempitan celah pita tapi juga dapat menghambat rekombinasi pasangan elektron-hole, secara signifikan dapat meningkatkan aktivitas fotokatalitik TiO2 di daerah cahaya tampak.
Analisis Kualitas Air pada Reservoir PDAM Kota Semarang Menggunakan Uji Parameter Fisika, Kimia, dan Mikrobiologi, serta Dikombinasikan dengan Analisis Kemometri
Authors: Rohmawati Yunita , Kustomo Kustomo
Published: December 2020

Air menjadi kebutuhan yang sangat penting untuk kehidupan manusia. Perusahaan Daerah Air Minum (PDAM) Tirta Moedal merupakan Badan Usaha Milik Daerah (BUMD) Kota Semarang yang memberikan pelayanan air bersih dan air minum kepada warga masyarakat Kota Semarang. Tujuan dari penelitian ini adalah untuk menganalisis kualitas air pada parameter fisika, kimia, dan mikrobiologi pada enam titik lokasi reservoir di Kota Semarang kemudian hasilnya dibandingkan dengan standar baku mutu air bersih dan minum sesuai dengan Peraturan Menteri Kesehatan No.416/Menkes/Per/IX/1990 Tentang Persyaratan Kualitas Air Bersih dan Peraturan Menteri Kesehatan Republik Indonesia No.492/Menkes/Per/IV/2010 Tentang Persyaratan Kualitas Air Minum. Hasil penelitian menunjukan semua reservoir memenuhi standar baku air bersih. Berdasarkan hasil analisis kemometri menggunakan uji t satu sampel diperoleh bahwa thitung < ttabel atau 1.72 < 2.57 dengan taraf signifikansi 95%, maka disimpulkan bahwa Ho diterima dan Ha ditolak, atau tidak ada perbedaan kualitas air pada ke-enam reservoir PDAM Tirta Moedal Kota Semarang dengan standar baku mutu air yang ditetapkan pemerintah (µ = standar baku mutu).
Geleneksel Anadolu Dokuma Araçlarından Öreke Üzerine Bir Değerlendirme
Authors: Çetin Yusuf , Polat Cavit
Published: December 2020

Geleneksel Anadolu el dokumalarının temel malzemesi olan yün, pamuk, keten gibi liflerin eğrilmesinde kullanılan iğ, ağırşak ve örekenin tarihi ile ilgili yapılan bilimsel çalışmalar bu araçların kaynağının Ön Asya ve Anadolu olduğunu ortaya koymaktadır. Bu araçlar içerisinde boyutları ile ön plana çıkan örekeler sadece işlevsel özellikleri ile değil farklı formları ve zengin süsleme kompozisyonları ile de dikkat çekmektedirler. Bu durum Anadolu insanının kullandığı her malzemeye sadece işlevsel bir araç gözü ile bakmadığını, estetik bir kaygı ile yaklaştığını ve kendi geleneklerini, yaşantılarını bu kültür varlıkları aracılığı ile günümüze kadar devam ettirdiğini göstermektedir.
Sanayi devrimi ile el emeğine dayalı üretimin gerilemesi ve giderek yok olması pek çok el sanatı alanını sonlandırdığı gibi bu alanda kullanılan araçların da yavaş yavaş unutulmasına ve toplumun hafızasında silinmesine neden olmuştur. Bir grup öreke üzerinde yapılan bu çalışma ile kültürel mirasın bir parçası olan bu kültür varlıklarının bilim dünyasına tanıtılması, korunması ve gelecek nesillere ulaştırılması amaçlanmıştır.
Türkiye’de İnovasyon Ölçümüne Yönelik Bir Değerlendirme
Authors: Elverdi Sevgi , Atik Hayriye
Published: December 2020

21. yüzyıl dünyasında, sürekli değişen ve yeni yüzüyle ortaya çıkan teknoloji karşısında aktif bir rol alabilmek; inovasyonu anlamak ve onu içselleştirmekten geçmektedir. Bunu sağlamanın yollarından biri de, kendi inovasyon ölçümünü geliştirmektir. Bugün dünyada pek çok ülke inovasyonu anlamak ve onun somut kazanımlarından maksimum düzeyde faydalanmak için, uluslararası düzeyde inovasyon ölçüm projeleri geliştirmektedirler. Ülkemizde inovasyon ölçümüne yönelik ilk adımlar 2000’li yıllarda atılmıştır. Bu çalışmada Türkiye literatüründe yer alan inovasyon ölçüm yaklaşımları ele alınmaktadır. Çalışmanın amacı; ülkemizdeki ulusal inovasyon ölçüm girişimlerini detaylı bir şekilde incelemek ve içeriğini ortaya koymaktır. Bu bağlamda; İstanbul Sanayi Odası (İSO), Türkiye İhracatçılar Meclisi (TİM), Türkiye İstatistik Kurumu (TUİK) ve Türkiye Bilimsel ve Teknolojik Araştırma Kurumu (TUBİTAK) olmak üzere dört önemli kurumun icraatından bahsedilmektedir. Ülkemizde başlatılan bu çalışmaların ve gösterilen gayretin, ülke çapında inovasyona atfedilen önemin en üst seviyeye çıkarılması ve inovasyon kültürünün yerleşmesi hususunda ciddi katkılarının olacağı sonucuna ulaşılmıştır.
A study on the arts and cultural activities for children in France
Authors: Kobayashi Sumiko
Published: December 2020

One of the main goals of modern French cultural policy is to ensure that all citizens can access culture. There is also an encouragement of the development of a culture that accounts for the multiplicity of cultures that exist within France. Such a policy requires a keen focus on educational
practices that can help disseminate and democratise the very culture it purports to grant access to. These aims have resulted in the Ministry of Culture and the Ministry of National Education in France signing an agreement and implementing a project that is based on both working together.
Examples of the product of this partnership can be found in the students of neighbouring schools observing cultural artefacts in museums and art galleries. There are countless other projects led by local governments and educational authorities that are related to arts and culture, including
collaborations with theatres, citizen associations, cinemas, libraries, radio stations, arts and cultural institutions, such as orchestras and artists, and between educational institutions and diverse related parties. The is aim is to sow the seeds of appreciation for art and culture from
an early age. Associate Professor Dr Sumiko Kobayashi is a researcher who is taking a different approach, she is instead focussing on using a sociological approach to educational matters in order to enrich children's cultural and artistic experience. The ultimate objective of Kobayashi's research
is to contribute to the development of children's arts and cultural activities for a diverse and inclusive society by clarifying the actual situation of the existing programmes.
Autonomy and Self-government in Indigenous territories in the diverse America
Authors: Funaki Ritsuko , González Miguel , Cal y Mayor Araceli Burguete , Marimán José , Ortiz Pablo T
Published: December 2020

Between 2001 and 2006, Junichiro Koizumi was the Prime Minister of Japan and President of the Liberal Democratic Party. During his tenure, Koizumi introduced several neo-liberalist policies, including market theory principles, as a means of reforming a range of public services, including
those of public education. Prior to the introduction of these policies, there was a limit to the number of universities that could provide pre-service programmes for primary school teachers, with programmes provided on a supply and demand service. However, following Koizumi's policies of deregulation,
any type of university was able to provide pre-service teacher education programmes for prospective primary school teachers. Of course, there will be those that view this deregulation as a means of achieving healthy competition, but it is also worth considering the ulterior motives for academic
institutions that began offering these programmes following the deregulation. For one thing, those who had provided such programmes prior to 2001 had done so for a number of years and generally had the requisite amount of experience and expertise, while the 'new' programme providers had not
necessarily demonstrated their capability and suitability for doing so. Indeed, prior to deregulation, there were approximately 100 providers of pre-service programmes for primary school teachers, but now there are over 200. From here, we might ask whether this increased competition has had
the undesired effect of diluting the quality of the services provided and, if this is the case, what effect this has had on the quality of teachers that go through the programmes. Professor Yasuyuki Iwata is based within the Research Centre for Education in the Next Generation at Tokyo Gakugei
University in Japan, and is investigating how neo-liberalist educational policies have affected the qualities and competencies of prospective teachers in Japan.
Empirical research on school practice and teacher education in the ESD global action program
Authors: Ichinose Tomonori
Published: December 2020

The United Nations Educational, Scientific and Cultural Organization (UNESCO) has developed17Sustainable Development Goals (SDGs) and 169 targets which recognize that ending poverty and other deprivations must go hand-in-hand with strategies that improve health and education, reduce
inequality, and spur economic growth. Each SDG has its own specific agenda, one of which is SDG 4 - Education for Sustainable Development (ESD). UNESCO states that 'Education is a human right and a force for sustainable development and peace'. This means that researchers around the world are
putting considerable effort into making sure this international goal is delivered at a local level. Professor Tomonori Ichinose, who is based within the Research Institution for Teacher Training and Development at the Miyagi University of Education in Japan, has been working on interpreting
SDG 4 locally. He is specifically conducting empirical international comparative research on school practice and teacher education to give teachers and students the tools they need to realise the potential of education.
Developing support systems for end-of-life discussions with elderly patients with dementia
Authors: Shimada Chiho
Published: December 2020

Advances in medicine mean that people are living longer, necessitating a need for elder care. In order to meet this demand, the needs of the elderly population, including the ways in which support can be provided, need to be understood. Advance care planning (ACP) involves making decisions
about future medical care and can alleviate the psychological burden family members of elderly people may face as it decides, ahead of time, on preferences and requirements. Dr Chiho Shimada, Tokyo Metropolitan Institute of Gerontology, Japan, is working to shed light on ACP, which is a relatively
new practice. She hopes, through her research, to improve care for elderly patients, with a key focus on dementia patients. Shimada advocates for a holistic approach to elder care in which understanding a patient's values and lifestyle choices is key. The idea is that a patient chooses their
daily care and treatment plans and records their values with a view to facilitating end-of-life (EOL) care decisions when the time comes. This equips the surrogate decision maker with the best knowledge possible to make these decisions on behalf of the patient. Another key focus is the role
of nurses in supporting medical decision making and care for elderly patients with dementia. She has discovered that many nurses are concerned by an over-reliance on medical care by patients and their families in the acute care setting. This led her to interview nurses and doctors about how
they can better support patients regarding treatment options. This culminated in the development of a pamphlet to educate patients and families, as well as providing clarification on the ACPs that nurses in acute care hospitals can be involved in and those that are difficult to carry out in
the acute care hospital setting.
Behavioural economics, elucidation of the patent examination process: Policy research for the improvement of patent examination efficiency and quality
Authors: Nakajima Ryo
Published: December 2020

Empirical economist Professor Ryo Nakajima, from the Faculty of Economics at Keio University in Japan, is investigating unproductive procrastination behaviours in relation to patent examiners. Nakajima is working alongside Associate Professor Ryuichi Tamura, from the University of Niigata
Prefecture, and Associate Professor Michitaka Sasaki, from Tottori University, to research US patent examiners and, in particular, how their procrastination behaviors have substantial negative impacts on the quality and efficiency of the patent process. By scrutinising the patent prosecution
data, the team will explore unproductive procrastination behaviors of US patent examiners, probe whether these behaviours are caused by present-biased preferences and estimate the magnitude of the problems. Thus, the research will examine the validity of the hypothesised present-biased preferences
in a real work environment.
Measurement of children's mood/mental ability and big data analysis for elucidation of non-cognitive ability
Authors: Omori Takashi
Published: December 2020

It is considered to be important that 'non-cognitive skills' - the social, emotional and behavioural skills that are influenced by environmental factors - are nurtured from an early age, such as in childhood education in the classroom setting. Teachers have a strong influence on the
non-cognitive skills of their students and it is therefore important that they are mindful of this and work to enhance such skills. A team of researchers based at Tamagawa University in Japan is working to collect data on non-cognitive abilities in order to convert this into a science that
can be built upon, assisting with the development of such skills.
 This research is headed up by Professor Takashi Omori of the Cognitive Architecture Research Lab, which is based in the University's Department of Information and Communication in the Faculty of Engineering. In the
team's lab, modelling research related to the process of human cognition is underway. The team are modelling the behavioural search processes of what makes the human consideration looks like logical. They expect development of the thinking process will come out as the change of non-cognitive
ability in daily activity of children. The researchers have been observing nursery and kindergarten children in their educational environments with a view to optimising these environments for non-cognitive development. The idea is that this can then be expanded to benefit students beyond this,
and society in general. The team is using Big Data to elucidate the causal relationship of post-growth non-cognitive abilities with a view to improving children's educational environments to, in turn, nurture and improve non-cognitive skills.