bluuebunny/crossref_metadata_2025 huggingface dataset:
Site-Specific Generation of Protein-Protein Conjugates Using Native Amino Acids
Authors: Lobba Marco , Fellmann Christof , Marmelstein Alan , Maza Johnathan , Kissman Elijah , Robinson Stephanie A. , Staahl Brett T. , Urnes Cole , Lew Rachel J. , Doudna Jennifer A. , Francis Matthew , Mogilevsky Casey S.
Published: October 2019

Chimeric protein-protein conjugates provide platforms for immunotherapy, targeted drug delivery, and vaccine development. However, many desirable constructs cannot be produced through direct expression, and the targeted coupling of two proteins is chemically challenging. Here we present a new approach for the rapid and site-specific coupling of proteins using native amino acids. Tyrosinase oxidizes exposed tyrosine residues on polypeptides, generating ortho-quinones that react rapidly with strategically placed cysteine residues in other proteins. This approach was used to modify CRISPR-Cas9 and other substrates with small molecules, peptides and even intact proteins. The conjugation of cell penetrating peptides to CRISPR-Cas9 was shown to increase cellular genome editing efficiency by 20-fold relative to unmodified Cas9. This technology represents a new paradigm for biomolecular coupling, and paves the way to an unprecedented range of multifunctional bioconjugates.
Development of Small-Scale Experiments for the Education of Chemical Engineering and Its Practice for Undergraduates
Authors: Katayama Kenji , Ichinohe Risa , Konno Yuki , Sohn Woon Yong , Kuwahara Shota , Funazukuri Toshitaka
Published: October 2019

A series of small-scale/micro-scale experiments used for the education of undergraduate students in chemical engineering courses have been developed. Based on the “small-scale/micro-scale” concept, the experiments were developed to provide an intuitive understanding of chemical processes, both by increasing the visibility of these chemical processes and by making the apparatus compact (desktop size). Nine experiments were developed that are relevant to the fields of thermal engineering, fluid engineering, unit operations, and reaction engineering. These experiments were introduced during the educational experiment course for undergraduates in the chemical engineering program.
On the Relative Stability of Near-Surface Oxygen Vacancies at the CeO2(111) Surface upon Zr Doping
Authors: Otero G. S. , Lustemberg Pablo , Prado Fernando D. , Ganduglia-Pirovano M. V.
Published: October 2019

Ceria (CeO2)-based materials are of great importance in numerous technological applications such as three-way catalysts (TWCs) [Catal. Today 62, 35-50 (2000) and Chem. Rev. 116, 5987-6041 (2016)], hydrocarbon reforming [Chem. Rev. 116, 5987-6041 (2016) and Catalysis by Ceria and Related Materials; Trovarelli, A.; Fornasiero, P., Eds.; 2nd Edition; Imperial College Press: London, 2013] and solid oxide fuel cells (SOFC) [Chem. Rev. 116, 5987-6041 (2016) and Catalysis by Ceria and Related Materials; Trovarelli, A.; Fornasiero, P., Eds.; 2nd Edition; Imperial College Press: London, 2013]. These materials possess a property that is key to most of such applications, namely, their capability for easy conversion between the Ce4+ and Ce3+ oxidation states, which is achieved by releasing oxygen atoms from the crystal lattice and forming oxygen vacancies. In particular, the replacement of Ce by Zr to form CeO2-ZrO2 solid solutions was found to facilitate the reducibility of the oxide as well as to increase the oxygen storage capacity and the system thermal stability, compared to pure CeO2. This theoretical work employing DFT+U calculations, is a systematic study of the effects of Zr doping on the stoichiometric and reduced CeO2(111) surfaces to determine the preferred location of the Zr dopants at various concentrations, as well as to pinpoint how Zr doping affects the stability of near-surface oxygen vacancies -including the position of the Ce3+ ions. We found that for a given Zr content, the more stable structures do not correspond to those configurations with Zr located in the topmost O-Ce-O trilayer (TL1), but in inner layers, and the stability decreases with increasing Zr concentration. Regarding the formation of oxygen vacancies, it was found that the most stable configuration corresponds to the Zr atom located in the surface layer (TL1) neighboring a subsurface oxygen vacancy with next-nearest neighbor Ce3+, being the formation energy equal to 1.16 eV. The corresponding surface oxygen vacancy is 0.16 eV less stable. These values are by 0.73 and 0.92 eV, respectively, smaller than the corresponding ones for the pure CeO2(111) surface. The results are explained in terms of Zr- and vacancy-induced lattice relaxation effects. This study provides microscopic insight into the interplay between Zr-doping, vacancy formation, lattice relaxations, and the localization of the excess charge that will be key to understanding surface chemistry and catalysis on Zr-doped ceria surface, as well as conductive ceria-based materials for advanced applications.
Remote Regioselective Electrophilic Aromatic Substitutions Using a Tetrafluoropyridyl (TFP) Phenol Protecting Group
Authors: Brittain William , Cobb Steven
Published: October 2019

Herein, we report the development of remote regioselective electrophilic aromatic substitution reactions enabled by the tetrafluoropyridyl (TFP) protecting group. The TFP group significantly reduces the reactivity of the aromatic ring to which it is attached allowing for substitution selectivity on non-TFP protected rings and in turn access to unsymmetric multi-aryl systems. Yields of the unsymmetric multi-aryl systems ranged between 58-96%. In addition, we disclose that through sequential reactions and protection/deprotection of the TFP group, substitution patterns which do not conform to classical regioselectivity rules can be readily accessed.
Evolution of N-Heterocycle-substituted Iodoarenes (NHIAs) to efficient Organocatalysts in Iodine(I/III)-mediated Oxidative Transformations
Authors: Boelke Andreas , Nachtsheim Boris
Published: October 2019

We herein describe the development of N-heterocycle-stabilized iodoarenes (NHAIs) as oxidation catalysts for oxidative C-X-bond forming reactions. Modification of the N-heterocycle as stabilizing donor in combination with an additional ortho-methoxylation of the iodoarene finally gives organocatalysts that can be applied in the alpha-oxytosylation of ketones even with catalyst loadings as low as 1 mol%.
Monolithic Solder-on Nanoporous Si-Cu Contacts for Stretchable Silicone Composite Sensors
Authors: Research Guder , Nunez-Bajo Estefania , Grell Max , Cotur Yasin , Barandun Giandrin , Kim Ji-Seon , Güder Firat
Published: October 2019

We report a method of creating solderable, mechanically robust, electrical contacts to interface (soft) silicone-based strain sensors with conventional (hard) solid-state electronics using a nanoporous Si-Cu composite. The Si-based solder-on electrical contact consists of a copper-plated nanoporous Si top surface formed through metal-assisted chemical etching and electroplating, and a smooth Si bottom surface which can be covalently bonded onto silicone-based strain sensors through plasma bonding. We investigated the mechanical and electrical properties of the contacts proposed under relevant ranges of mechanical stress for applications in physiological monitoring and rehabilitation. We also produced a series of proof-of-concept devices, including a wearable respiration monitor, leg band for exercise monitoring and Squeeze-ball for monitoring rehabilitation of patients with hand injuries or neurological disorders, to demonstrate the mechanical robustness and versatility of the technology developed, in real-world applications.
Elucidating the Drug Release from Metal-Organic Framework Nanocomposites via in Situ Synchrotron Microspectroscopy and Theoretical Modelling
Authors: Souza Barbara , Dona Lorenzo , Titov Kirill , Bruzzese Paolo , Zeng Zhixin , Zhang Yang , Babal Arun , Moslein Annika , Frogley Mark , Wolna Magda , Cinque Gianfelice , Civalleri Bartolomeo , Tan Jin-Chong
Published: October 2019

Nanocomposites comprising metal-organic frameworks (MOFs) embedded in a polymeric matrix are promising carriers for drug delivery applications. While understanding the chemical and physical transformations of MOFs during the release of confined drug molecules is challenging, this is central to devising better ways for controlled release of therapeutic agents. Herein we demonstrate the efficacy of synchrotron microspectroscopy to track the in situ release of 5-fluorouracil (5-FU) anticancer drug molecules from a drug@MOF/polymer composite (5-FU@HKUST-1/polyurethane). Using experimental time-resolved infrared spectra jointly with newly developed density functional theory calculations, we reveal the detailed dynamics of vibrational motions underpinning the dissociation of 5-FU bound to the framework of HKUST-1 upon water exposure. We discover that HKUST-1 creates hydrophilic channels within the hydrophobic polyurethane matrix hence helping to tune drug release rate. The synergy between a hydrophilic MOF with a hydrophobic polymer can be harnessed to engineer a tunable nanocomposite that alleviates the unwanted burst effect commonly encountered in drug delivery.
A Bond Charge Model Ansatz for Intrinsic Bond Energies: Application to C-C Bonds
Authors: Laplaza Rubén , Polo Victor , Contreras-García Julia
Published: October 2019

A simple Bond Charge Model is proposed to predict intrinsic bond energies. Model parameters can be derived from the topology of the Electron Localization Function and optimized geometries through classic considerations. Results for carbon-carbon covalent bonds are shown to be very accurate in different chemical environments. Insight can be extracted from the application of the model due to its elementary construction and simple mathematical formulation. The remarkable robustness of the fitted model highlights how different Density Functional Approximations relate geometries, densities and energies.
Determining the Role of Oxygen Vacancies in the Photocatalytic Performance of WO3 for Water Oxidation
Authors: Corby Sacha , Francàs Laia , Kafizas Andreas , Durrant James R
Published: October 2019

Oxygen vacancies are common to most metal oxides, whether intentionally incorporated or otherwise, and the study of these defects is of increasing interest for solar water splitting. In this work, we examine nanostructured WO3 photoanodes of varying oxygen content to determine how the concentration of bulk oxygen-vacancy states affects the photocatalytic performance for water oxidation. Using transient optical spectroscopy, we follow the charge carrier recombination kinetics in these samples, from picoseconds to seconds, and examine how differing oxygen vacancy concentrations impact upon these kinetics. We find that samples with an intermediate concentration of vacancies (~2% of oxygen atoms) afford the greatest photoinduced charge carrier densities, and the slowest recombination kinetics across all timescales studied. This increased yield of photogenerated charges correlates with improved photocurrent densities under simulated sunlight, with both greater and lesser oxygen vacancy concentrations resulting in enhanced recombination losses and poorer J-V performances. Our conclusion, that an optimal – neither too high nor too low – concentration of oxygen vacancies is required for optimum photoelectrochemical performance, is discussed in terms of the impact of these defects on charge separation and transport, as well as the implications held for other highly doped materials for photoelectrochemical water oxidation.
Profil Kemampuan Pemecahan Masalah Matematika Siswa Berbentuk Soal Cerita Materi Bangun Ruang
Authors: Ani Elya Umi , Rahayu Puji
Published: October 2019

Penelitian ini bertujuan untuk mendeskripsikan profil kemampuan pemecahan masalah berbentuk soal cerita pada materi bangun ruang. Jenis penelitian ini adalah penelitian deskriptif kualitatif. Subyek penelitian ini terdiri dari 6 siswa dengan kriteria 2 berkemampuan tinggi, 2 berkemampuan sedang dan 2 berkemampuan rendah. Hasil penelitian menunjukkan bahwa subyek berkemampuan tinggi dalam memecahkan masalah termasuk kategori baik, subyek berkemampuan sedang dalam memecahkan masalah termasuk dalam kategori cukup, dan subyek berkemampuan rendah dalam memecahkan masalah termasuk dalam kategori kurang.
Pembelajaran Luas Permukaan Prisma Menggunakan Konteks Packaging
Authors: Hanun Afifah , Prahmana Rully Charitas Indra
Published: October 2019

Pemahaman konsep sangat diperlukan dalam pembelajaran matematika, sehingga diperlukan suatu konteks untuk mempermudah siswa dalam memahami konsep matematis. Penggunaan konteks merupakan salah satu karakteristik dalam pembelajaran matematika dengan Pendekatan Matematika Realistik Indonesia (PMRI). Tujuan penelitian ini adalah untuk mengetahui peran konteks packaging dalam memberikan pemahaman konsep luas permukaan prisma dan mengetahui hasil belajar siswa dalam pembelajaran luas permukaan prisma melalui pendekatan PMRI. Penelitian ini dilaksanakan dengan menggunakan metode design research. Subjek penelitian ini adalah seluruh siswa kelas VIII D SMP N 5 Banguntapan Bantul Yogyakarta. Objek penelitian ini adalah pengenalan konsep luas permukaan prisma. Teknik pengumpulan data menggunakan dokumentasi, rekaman video, data tertulis, dan observasi. Selanjutnya, teknik analisis data dalam penelitian ini menggunakan analisis data, validitas, dan reliabilitas. Hasil penelitian menunjukkan bahwa konteks packaging dapat digunakan sebagai starting point dalam pembelajaran luas permukaan prisma. Selain itu, hasil belajar siswa setelah mengikuti pembelajaran luas permukaan prisma menggunakan konteks packaging mendapatkan nilai rata-rata sebesar 93 dengan frekuensi ketuntasan 96,15%.
Pengaruh Teknik Treasure Hunt Game Berbasis Model Think Pair Share Terhadap Pengaruh Hasil Belajar Matematika Siswa Kelas III
Authors: Cahyani Riza Yunita , Triyanasari Dewi , Tri Pinkan Amita
Published: October 2019

Penelitian ini bertujuan untuk mengetahui adanya Pengaruh Teknik Treasure Hunt Game berbasis Model Think Pair Share Terhadap Hasil Belajar Matematika Siwa SD Kelas III. Penelitian ini merupakan penelirian kuantitatif dengan jenis OneGroup Pretest-Posttest. Pengujian hipotetis menggunakan t-test, diperoleh data hasil thitung = 20,30 dengan ttabel = 2,101 . Dengan demikian karena thitung > ttabel (20,30>2,101) maka Ho ditolak dan Ha diterima
Development Of Education Comics Based Realistic Mathematics Education On Fraction Material
Authors: Lestari Arika Celsie Puji , Ekawati Rooselyna
Published: October 2019

The research aims to describe the process and the result of the RME-based comics education on fraction material approach measured by aspects validity, practicality, and effectiveness. The subject of this research were students grade-7 junior high school. This research is development research with the five stages ADDIE model, and they are analysis, design, development, implementation, and evaluation. This research showed that RME-based comics education is valid, very practically, and effective.
Analisis Sikap dan Keyakinan Calon Guru di Indonesia terhadap Pemanfaatan Sejarah Matematika dalam Pembelajaran Matematika
Authors: Kusumawati Intan Bigita , Fachrudin Achmad Dhany
Published: October 2019

Tujuan dari penelitian ini adalah untuk menganalisis sikap serta keyakinan calon guru matematika mengenai penggunaan sejarah matematika dalam pembelajaran. Subjek dari penelitian ini adalah mahasiswa calon guru matematika dari Sembilan perguruan tinggi keguruan yang tersebar di Indonesia. Pengumpulan data dilakukan melalui pengisian angket sikap dan keyakinan penggunaan sejarah matematika dalam pembelajaran matematika. Item angket sikap dan keyakinan terdiri dari dua ketegori yaitu sikap dan keyakinan diri terhadap pemanfataan sejarah matematika serta sikap dan keyakinan terhadap kemampuan diri dalam memanfaatkan sejarah matematika. Analisis deskriptif kuantitatif digunakan untuk menganalisis angket sikap dan keyakinan. Hasil penelitian menujukkan bahwa sikap dan keyakinan pemanfaatan sejarah matematika secara keseluruhan berada pada level sedang, sementara keyakinan diri dalam menggunakan sejarah matematika dalam pembelajaran skornya masih rendah. Sikap dan keyakinan positif terhadap integrasi sejarah matematika dalam pembelajaran tersebut mengimplikasikan bahwa sebagian calon guru setuju bahwa sejarah matematika merupakan materi yang penting tidak hanya sebagai sebuah subjek materi tersendiri, namun sebagai subjek materi yang dapat terintegrasi dalam pembelajaran matematika.
RETRACTION NOTE: Les structures des phrases dans les tracts du mai 1968
Authors: Tamba Nokiamy Sesena , Laksman-Huntley Myrna
Published: October 2019

As of October 15, 2019, the following article is being retracted from the UGM Digital Press Social Sciences and Humanities series.

“Les structures des phrases dans les tracts du mai 1968” by Nokiamy Sesena Tamba and Myrna Laksman-Huntley, Social Sciences and Humanities Series Vol 3: 00033, Proceeding of Conférence internationale sur le français 2018, Joesana Tjahjani, Merry Andriani, Sajarwa, Wening Udasmoro (eds) DOI: https://doi.org/10.29037/digitalpress.43306

The original article is registered through this URL https://digitalpress.ugm.ac.id/article/306

as decided by authors and conference organizers on the basis of analytical error. It may encourage potential misleading circulation of information in the future.

On the following exchange of information with the publisher, it has been decided that the article will be retracted.

The retracted article will remain in public domain, that is maintaining its appearance on UGM Digital Press web archive and the Conférence internationale sur le français 2018 printed version. However, it will receive a watermark to accentuate its retracted status.
THE RELATIONSHIP BETWEEN CULTURE, ECONOMY AND POLITICS IN TURKISH SOCIETY
Authors: KABAŞ Tolga
Published: October 2019

Ortaçağ Avrupası’nda Feodal sistem egemendi. Feodal sistemde üretim tarıma dayalıydı. Avrupa’da yükselen orta sınıflar Sanayi devrimi ve Fransız devrimi ile Feodalizmi yıkmıştır. Avrupa’da feodalizmin yerine daha verimli ve rasyonel
bir sistem olan kapitalizm kurulmuştur. Bu süreçte Liberalizm Batılı toplumların temel modernleşme ideolojisi olmuştur. Osmanlı Devleti’nin kurtuluşu için, Avrupa ülkelerinin gerçekleştirdiği gibi, toplumsal değişmeye ve yeni bir
toplum yaratılmasına ihtiyaç olduğu tüm Osmanlı aydınları tarafından kabul edilmiştir. Ancak, Birinci Dünya Savaşının ardında Osmanlı Devleti çökmüş, saltanat ve hilafet son bulmuştu. 20. yüzyılda en etkin unsur ekonomiydi. Batılı
toplumların ihtirasları ekonomiye odaklanıyordu. Yeni kurulan Türkiye Cumhuriyeti Devleti’nin elitleri de medeniyetin yolunun sanayileşmekten geçtiğini görmüştü. Cumhuriyeti kuran elitler iktisadi kalkınmanın temel ve öncelikli
koşulunun zihniyet değişikliği olduğunu fark etmişlerdi. Bu bağlamda çalışmada Türk toplumunda kültür, ekonomi ve siyaset ilişkisi üzerinde durulmaktadır.
A RESEARCH ON THE ETHICAL PERCEPTIONS OF VOCATIONAL PRACTICES OF ACCOUNTING PROFESSIONS: CASE OF DENIZLI-BISHKEK
Authors: YÜREKLİ Emin , GÖNEN Seçkin
Published: October 2019

Ülke Ekonomileri işletmeler temelinde varlığını sürdürür, gelişir ya da küçülür. Bir ülkenin ekonomisi ne kadar güçlü ise o ülkede yaşayan halkın refahına o derece etki eder. İşletmelerin finansal bilgilerinin ve bu bilgilerin çıktılarının açık net şeffaf ve karşılaştırılabilir olması önemlidir. İşte bu düzeni sağlayan ise muhasebe meslek mensuplarının tutumudur. Meslek mensupları, muhasebe kayıtlarını tutarken, sınıflandırırken, özetlerken ve raporlarken özenli ve titiz davranmak zorundadırlar. Muhasebe meslek mensupları sosyal sorumlulukları gereği bu özeni alışkanlık haline getirmelidirler. Muhasebe meslek elemanlarının bahis konusu kayıtlama ve raporlama aralığındaki işlemleri yaparken bir takım yanlışlıklar yapabilir. Bu yanlışlıkların kasıt olmaksızın yapılması durumu hata, kasıtlı yapılması durumu ise hile olarak tanımlanmaktadır. Meslek mensupları hata ve hile olasılığının bilincinde, gerekli özeni göstermesi etik gereğidir. Bu çalışmada Bişkek ili ile Denizli ilinde mesleğinde 10 yılını doldurmuş muhasebe meslek mensuplarına mesleki uygulamaları ile ilgili etik arasında bağlantı kurulan 4 adet soru sorulmuştur. Bu soruların cevapları literatüre uygun bir şekilde açıklanmaya çalışılmıştır.
The Effect of Organic Matter (Centrosema pubescens) and Rock Phosphate Application on the Activity of Phosphatase and P Fraction of Latosol Soil in Darmaga, Bogor
Authors: Djuniwati S , Pulunggono H.B , . Suwarno
Published: October 2019

One of the problems of acid soils such as Latosol is very low in P-availabi/ity due to high P-j'vcation in those soils. Sincesoils is deficiency of P, adaptation of plants and microorganisms to overcome deficiency of P in soil is by producing phosphatase. Phosphatase. is an enzyme that able to catalize transformation of organic P to inorganic P, and produced by plant roots, residual of plants and microorganisms. Organic mailer as a source of P besides N and energy formicroorganisms, and then rock phosphate as an alternative P fertilizer were used in this research. The objective of theresearch was to study the effect of organic matter (Centrocema pubescent) and rock phosphate application on phosphataseactivity and P fraction of Latosol soil from Darmaga, Bogor. The experiment was designed by completely randomized designwith two factors and three replications. The first factor was application of organic matter with the rate of 0, 2.5, and 5 %, and the second factor was application of rock phosphate with the rate of 0, 20, and 40 ppm P. Soil equivalent to four hundred grams of oven dried soil, organic matter, and rock phosphate were mixed based on the treatments of the experiment, and were placed in plastic pots, and then were incubated for 8 weeks period After incubation period, the soil were air dried and analyzed for phosphatase activity, available P, and organic and inorganic P. The result showed that organic mailer increased activities of acid and alkaline phosphatase, organic and inorganic-P of soil. On the other hand, rocle phosphate increased inorganic P but decreased activities of acid phosphatase,. Application of organic matter or rock phosphate on activity of acid phosphatase was higher (2.3-2.6 times) than on alkaline phosphatase. There was no effect of combinationbetween organic matter and rock phosphate on the activity of phosphatase and organic/inorganic P. Combination betweenorganic matter and rock phosphate Significantly affected available P. In each rates of rock phosphate given, the increasing rate of organic matter increased available P in their interactions, on the contrary, in each rates of organic matter, the increasing rate of rock phosphate did not affect available P in their interactions. However it was tended to decrease in therate of 40 ppm P.
Agricultural Land Conversion and Land Use Change Dynamics in North Bandung Area
Authors: Ruswandi Agus , Rustiadi Ernan , Mudikdjo Kooswardhono
Published: October 2019

Agricultural land conversion is considered as one of an important issus in the developing areas. In spite of theimportance of informations on the quantity and the rate of land conversion as the basis of formulating the agricultural landconversion policy, those informations are limited. This research was conducted at Lembang and Parongpong Sub-District,Bandung District. The objectives of research are to identify the rate of agricultural land conversion and to measure thedynamic change of land use. Land use in 1992 and 2002 was evaluated by interpretating the result of 1992 and 2002 landsatimage using Geographic Information System (GIS) program. Shift Share analysis was conducted to know the dynamic changeof land use. Results of the study indicated that land conversion at Lembang and Parongpong Sub-District during the period of1992-2002 (ten years) about 3,134.49 ha (25%) or 313.5 ha (2,96%) per year. Forestland reduced the most, from 5,470 ha in 1992 to 1,746 ha in 2002 or reduced about 3,732.12 ha (68%) in ten years. While area of the bush was increased about2,780.20 ha (1,326%) during the same period, from 210 ha in 1992 to 2,990 ha in 2002. Low land was decreasedfrom 252 hain 1992 to 95 ha in 2002, up land was decreased from 3,856 ha in 1992 to 2,736 ha in 2002, mix farming was increasedfrom2,491 ha in 1992 to 4,358 ha in 2002, resettlement was increased from 359 ha in 1992 to 1,612 ha in 2002, bare wasdecreasedfrom 1,115 ha in 1992 to 217 ha in 2002, lake was decreasedfrom 52 ha in 1992 to 50 ha in 2002.
Isolation, Carriers Selection and Inoculum Formulation of Thiobacillus spp.
Authors: Hazra Fahrizal , Widyati Enny
Published: October 2019

One of problems in international trading of coal is high content of suljur. B iodesuljuration of coal using Thiobacillusspp is recognized as the most environmentally friendly to reduce the content. This research was aimed to collect and to isolateThiobacillus spp from coal, acid mine drainage, ex-coal mining soil and agriculture soil, on selected media. Colonies growingon the media were re-isolated for further characterization to find the most similar to Thiobacillus spp. In this experiment, the selected isolate (5, J 0, 20, 50, and J 00 ml) was cultured in 100 g of coal dust, rice husk charcoal, wood charcoal, andactivated charcoal, to find an appropriate inoculum for coal desulJuration. To observe their survival rate, they were reisolated onto 10 ml Thiobacillus broth medium. The re-isolations were observed at the 7, 14, 21 and 28 days of incubation. The results showed that ThiobaciIlus spp was found only in acid mine drainage. After characterization, the isolates were strongly similar to Thiobacillusferrooxidans. The most proper inoculum was 100 ml culture ofThiobacillus in 100 g rice husk charcoal. It had 100% survival rate after 20 days cultured in that carrier.
Capacitação em recursos hidrícos por meio de oficinas temáticas e AVA: proposta metodológica
Authors: Bacarim Gisele , Schneider Vania Elisabete , Sauer Laurete Teresinha Zanol
Published: October 2019

Este trabalho tem como objetivo apresentar uma proposta metodológica para capacitação em recursos hídricos para professores e técnicos por meio de um Ambiente Virtual de Aprendizagem (AVA) e oficinas temáticas presenciais. O ambiente virtual de aprendizagem foi utilizado para aporte teórico e as oficinas temáticas foram elaboradas buscando atender as demandas dos participantes quanto a dificuldades de interação com o ambiente virtual de aprendizagem, legislação e práticas relacionadas com experimentos realizados com materiais alternativos e monitoramento de recursos hídricos, contemplando técnicas de aprendizagem ativa. A avaliação da proposta foi realizada por meio de questionários prévios e finais em cada uma das atividades. Entende-se que os procedimentos metodológicos aplicados podem ser utilizados para capacitar professores e multiplicar informações referentes aos recursos hídricos, desde que sejam realizadas algumas modificações verificadas durante a aplicação deste trabalho.
Influência da afetividade na superação de dificuldades de aprendizagem em um curso militar a distância
Authors: Tenório André , Medina Tatiana Etges , Tenório Thaís
Published: October 2019

A afetividade influencia na aprendizagem. Neste estudo de caso, objetivou-se conhecer o papel da afetividade na superação de dificuldades e na redução da retenção de cursistas em um ambiente virtual de aprendizagem de um curso militar, condicionado à rigidez hierárquica. Por meio de questionários on-line foram colhidas às percepções de sete tutores e sessenta e quatro alunos do curso a distância de aperfeiçoamento de sargentos da polícia militar de um estado brasileiro. Para os dois grupos, diversos fatores influiriam na construção de vínculos afetivos, mas a falta de comunicação frequente seria o maior obstáculo. Em casos de dificuldade de aprendizagem, o pronto esclarecimento de dúvidas e a análise do perfil do aluno seriam as ações mais eficazes. As estratégias comumente empregadas para reconhecer dificuldades eram acompanhar as postagens nos fóruns, avaliar se o aluno demonstrava entendimento do conteúdo ao realizar as tarefas e observar a interação com a tutoria. Segundo os pesquisados, a afetividade colaboraria para reduzir a retenção – para os tutores, por despertar o sentimento de pertencer a um grupo; para os alunos, por motivá-los. Um ambiente de ensino acolhedor, em especial em cursos a distância, ajudaria o aluno a superar a falta de contato pessoal intrínseca à modalidade.
A construção do pensar: uma abordagem a partir do uso das TDIC no ensinode matemática
Authors: Santos Katia Maria Limeira , Vasconcelos Carlos Alberto
Published: October 2019

A construção do pensar, é inerente ao homem. Contudo, ao ensinar a matemática a partir do uso das TIC, logo possibilitará ajudar o aluno a desenvolver a capacidade de pensar e sua criatividade. Para isso se faz necessário novas definições, concepções e perspectivas sobre a pesquisa e ensino na matemática, bem como a  prática pedagógica acerca do uso das TIC. Dessa feita esse texto objetiva tratar das TIC no ensino de matemática, visando o pensar do aluno na contemporaneidade. Utilizou-se metodologia com abordagem qualitativa, de caráter bibliográfico  a partir de pressupostos teóricos (Barros, Castells, Levy, Primo, Silva dentre outros que abordam a temática). O estudo destaca a importância das TIC e seu uso na educação, em especial através de softwares matemático, revelando o inovar no ensino da matemática compreendendo o papel das TIC, a partir de uma nova didática das ciências, possibilitando o desenvolvimento cognitivo do aluno.
Experimentos com Interfaces Digitais como Subsídio na Elaboração de Oficinas e Cursos para o Ensino Superior
Authors: Neves Yára Pereira da Costa e Silva , Mercado Luis Paulo Leopoldo , Barros Leila Augusta de Oliveira , Almeida Renato Lima Barros de
Published: October 2019

As TIC abrem novas possibilidades educacionais na medida em que estão disponíveis e suprem interesses diversos. A criação de novos ambientes de aprendizagem que incorporam diferentes tecnologias, fortalecem o aperfeiçoamento constante para o professor do ensino superior, tornando-se um desafio para o repensar do fazer pedagógico. Este estudo descreve as atividades desenvolvidas com experimentos para avaliar as possibilidades pedagógicas de interfaces da internet, com estudos para subsidiar a elaboração de oficinas numa universidade pública brasileira a serem ofertados na formação de professores do ensino superior para as modalidades presencial e a distância. Foi estruturado nas seguintes etapas: a primeira envolveu reunião com bolsistas para definição de procedimentos e cronograma necessários para a realização dos experimentos; exploração das possibilidades dos softwares para apoio pedagógico com o preenchimento de ficha de avaliação contemplando os seguintes itens: nome do software, tipo, definição, possibilidades pedagógicas, pré-requisitos e observações; pesquisa sobre a história do software, os pré-requisitos para a instalação, configuração das funcionalidades e elaboração de relatórios fundamentados em estudos de base teórica dos softwares estudados. A segunda envolveu a exploração do software pelos pesquisadores para análise das possibilidades pedagógicas. Foram realizados 17 experimentos com interfaces categorizadas por grupos de utilização incluindo jogos, simulações, mundos virtuais, mapas conceituais, comunidades virtuais e redes sociais, dentre elas: Dipity, Elgg, ETC, Geni, Google Ocean, Google Sky, Grand Chase, Habbo,  LiveMocha, MindMeister, Mindomo, NVivo, Panfu, Second Life, Scribblar, World Of Warcraft, Minecraft, Scratch. A terceira etapa envolveu a preparação do tutorial básico e a montagem das oficinas de extensão com alunos da graduação dos cursos de licenciatura, professores das redes públicas e privada e também para alunos de outros cursos de graduação que poderão ser professores do ensino superior. Palavras-chave: TIC. Ensino Superior. Experimentos.  Formação de Professores.
Capacitação de professores para o uso de tecnologias na prática didático-pedagógica: um estudo de caso no SENAI-SE
Authors: Rocha Fabio Gomes
Published: October 2019

Este trabalho trata sobre a preparação de professores para o uso de tecnologias como recurso pedagógico no Serviço Nacional de Aprendizagem Industrial de Sergipe. Buscou-se verificar a apropriação desses recursos pelo público investigado, bem como identificar eventuais resistências e dificuldades no uso das tecnologias como metodologia para as suas aulas. A investigação assume-se como um estudo de caso, sob abordagem qualitativa. Os resultados indicam elevado interesse pelos docentes no uso dos recursos tecnológicos em suas aulas, bem dificuldades oriundas, substancialmente, da infraestrutura institucional. As conclusões indicam que a preparação de professores para a incorporação de tecnologias nas práticas didático-pedagógicas, seja como apoio ao ensino presencial ou utilização em educação integralmente a distância demanda averiguações prévias sobre o nível de conhecimento precedente à capacitação, assim como as condições estruturais e tecnológicas que deverão ser disponibilizadas aos participantes, sob pena de comprometimento dos resultados na aprendizagem desses sujeitos.
Conceitos e Dimensões da Iniciação Científica na Base de Dados da Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Authors: Nascimento Marilene Batista da Cruz , Lucena Simone
Published: October 2019

Resumo: Este estudo tem como objetivos apresentar a abrangência e os significados da iniciação científica nas publicações do banco de teses e dissertações da Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Capes) com vistas a compreender as tendências e as inter-relações entre iniciação científica e formação na educação superior. Trata-se de uma pesquisa do tipo estado do conhecimento que visa corroborar para a delimitação, organização e análise de uma determinada área, sendo possível, inclusive, estabelecer rupturas sociais. Os resultados indicam produções significativas e revelam uma predominância de temas ligados à formação científica, acadêmica e profissional, englobando as teorias que sustentam os processos de ensino e aprendizagem. Palavras-chave: Iniciação científica. Conceitos e dimensões. Estado do conhecimento.Capes.
Bibliografia Comentada em Educação a Distância e Práticas Educativas Comunicacionais e Interculturais
Authors: Mercado Luis Paulo Leopoldo
Published: October 2019

Acesse o pdf para ver o conteúdo.
Análise da efetividade no uso dos bens em polos do Ensino a Distância
Authors: Pereira Carolina Moreira , Athayde Marcia , Santos Thatiana Marques dos , Carvalho Tatiana de Araújo
Published: October 2019

Resumo: Este artigo versa sobre a efetividade no uso de bens disponibilizados nos polos de educação a distância de uma instituição de ensino superior de Minas Gerais. Teve como objetivo geral analisar como uma IFES, escolhida para o estudo, realiza o controle da efetividade no uso dos seus ativos, considerando desde o planejamento e a especificação para a compra, as formas de aquisição possíveis, o conceito de custo total de propriedade, instalações, manutenções e o controle do desgaste para substituição. Para a realização da pesquisa empírica foi escolhido o curso de licenciatura em Química. Foram realizadas análises documentais, observação, entrevistas e levantamento, a fim de se atingir o objetivo da pesquisa. Como resultado foi identificado que há planejamento de compras de itens, que as compras seguem os parâmetros estabelecidos pela Lei das Licitações Públicas, e que ainda não foi desenvolvido o conceito de custo total de propriedade na entidade analisada. A partir do levantamento e das entrevistas realizadas foi constatado a satisfação dos usuários, com predominância de percepções positivas por parte dos participantes da pesquisa. Por fim, conclui-se que há efetividade no uso dos bens disponibilizados, favorecendo a aprendizagem e a retenção dos alunos do curso.Palavras-chave:  Ensino a distância. Ativo Imobilizado. Efetividade.
As narrativas autobiográficas como eixo interdisciplinar entre a psicologia e a educação: contribuições para a licenciatura em Educação do campo
Authors: Costa Elis Regina da , Assis Maria Paulina de
Published: October 2019

Resumo: As narrativas autobiográficas são um instrumento usado por pesquisadores das ciências humanas, como a psicologia e a educação na formação de docente. O objetivo do presente estudo foi verificar as contribuições potenciais das narrativas autobiográficas como estratégia de ensino interdisciplinar na formação de professores no curso de licenciatura em Educação do Campo. Partiu-se da hipótese que as relações construídas entre as teorias estudadas atreladas ao relato dos contextos pessoais de aprendizagem dos alunos promoveria uma aprendizagem significativa. A metodologia da memória autobiográfica foi desenvolvida dentro da proposta de um diário, na qual o aluno relatava suas experiências em perguntas estruturadas pela professora da disciplina de Psicologia da Educação. Após a realização dos encontros, no último dia de aula, aplicou-se um questionário com quatro perguntas. Os alunos possuíam uma faixa etária de 19 a 52 anos. Os dados demonstraram que os alunos se identificaram mais com as teorias de aprendizagem e desenvolvimento de Rogers e Piaget. Os alunos avaliaram a utilização das narrativas autobiográficas como eficientes para articular suas histórias de vida com o conteúdo proposto, contudo enfatizaram que relembrar os acontecimentos tristes como um processo dolorido.Palavras-chave:  Formação de professores. Narrativas autobiográficas. Psicologia da educação.
As estratégias de aprendizagem como forma de promover a interdisciplinaridade e o aprender a aprender: investigando as estratégias de aprendizagem de universitários dos cursos de História e Psicologia
Authors: Costa Elis Regina da
Published: October 2019

Resumo: A presente investigação, de natureza descritiva e correlacional possuía como propósito investigar o uso de estratégias de aprendizagem por parte de alunos universitários do primeiro e último ano dos cursos de História e Psicologia. O instrumento utilizado para a coleta de dados foi a “Escala de Avaliação de Estratégias de Aprendizagem” de autoria de Santos e Boruchovitch  (2008). Os dados demonstraram que, os estudantes dos cursos de Psicologia e História relataram usar estratégias de aprendizagem semelhantes em suas atividades de estudo e aprendizagem. No curso de Psicologia, as alunos do sexo feminino em comparação ao masculino relataram utilizar estratégias metacognitivas mais frequentemente nas atividades de estudo. Em relação à formação focada na proposta interdisciplinar, reconhece-se cada vez mais a necessidade de processos educacionais formativos que promovam a autonomia intelectual dos futuros profissionais. As estratégias de aprendizagem podem se constituir em um instrumento para desenvolver e potencializar esse processo de construção critica pois, possibilita a construção de uma ação interdisciplinar a medida que, permite articular os conhecimentos do ensino e da aprendizagem voltadas para o desenvolvimento de competências estratégicas entre os alunos dos diversos cursos de licenciatura.Palavras-chave: Estratégias de aprendizagem. Formação de professores. Interdisciplinaridade.
The Effect of Extensive Reading on Students’ Reading Achievement Of Senior High School
Authors: Mardiana Eka , Hidayat Nur
Published: October 2019

The aim of this study was to investigate the effects of extensive reading on students’ reading achievement for senior high school grade X. The extensive reading was an alternative method in the teaching reading to make the students fun and easy to get the meaning of texts from many sources. The subjects were 27 students at grade X in the academic year 2018/2019. The researcher applied by using in a quasi-experimental design using a quantitative approach. The instrument of this research used pre-questionnaires, test and observation. The technique of analyzing data was applied by using a paired sample t-test from the Statistical Package for the Social Sciences 22 (SPSS22). The result of the analysis showed that the mean of the pre-test was 79, 85 and the mean of post-test was 85, 56. The mean score of posttest was higher than pretest in experimental class who were taught by extensive reading. It concluded that the implementation of the extensive reading can give positive effects to the students. It was supported by the result of observation showed that the students were enthusiastically to answer the question, many vocabularies, fun, enjoyable, easy to understand the meaning of the texts and more active in the teaching learning.
Pedal Powered Water Pump Application To Support Irrigation Activities In Carat Village, Gempol District, Pasuruan Regency, East Java Province
Authors: Hatta Hatta , Mochammad Mochammad , IK Tjahjani , Wicaksono Awang
Published: October 2019

In this PKM program, our partner is a fruit farmer in Carat Village, which is the name of a village in GempolDistrict, Pasuruan Regency, East Java Province. This village actually has the opportunity to develop in the plantation sector with its main plants cucumber, cantaloupe, cucumber mas, and roses. However, it is constrained by the condition of very barren rice fields and plantations covering an area of 60 hectares, due to the lack of support for the local irrigation system currently being implemented. Based on interviews and observations in the field, there are 2 main focuses of the problems currently faced by partners, namely: 1) The production sector is caused by the large amount of energy that must be spent to drawwater from the well with the distance of the water source to the plantation using simple equipment and 2). Field of management due to the under-optimal distribution of crop yields and monitoring functions of yields in each period. Some of the things planned by the PKM team are innovating bicycles which are named pedal power as plantation irrigation equipment and solutions in the field of production, as well as providing training and mentoring in financial reporting as a solution in the field of management. The purpose of this activity is to realize a system improvement, increase crop production, and create effective, efficient and competitive management. This activity was realized with an approach in the form of making a sustainable cooperation program untilthe end of PKM, creating a family atmosphere between the two and understanding that the problems experienced werea shared problem so that they could be solved together according to the level of responsibility to achieve the expectedbenefits, namely increased yields, production and productivity and competitiveness, independence and welfare of thecommunity.
APLIKASI MANAJEMEN PELAYANAN KUNJUNGAN BERBASIS WEB PADA LEMBAGA PEMASYARAKATAN KELAS IIA
Authors: Nugroho Adi , Setyawan Agus
Published: October 2019

Abstrak - Pembinaan pada Lembaga Pemasyarakatan harus memperhatikan pemenuhan hak-hak Narapidana. Salah satu hak narapidana sebagaimana diatur dalam Undang-undang nomor 12 tahun 1995 tentang Pemasyarakatan pasal 14 mengatakan bahwa narapidana berhak menerima kunjungan keluarga, penasihat hukum, atau orang tertentu lainnya. Pelayanan kunjungan narapidana tidak dipungut biaya, keluarga narapidana dapat berkunjung dengan cukup membawa kartu identitas diri dan mengambil nomor antrian untuk melakukan pendaftaran identitas pengunjung serta narapidana yang ingin dikunjungi. Banyaknya antrian pada tempat pendaftaran kunjungan merupakan permasalahan yang menyebabkan tidak efisiennya penggunaan waktu kunjungan yang hanya 30 menit. Penelitian ini bertujuan untuk menghasilkan aplikasi yang dapat digunakan untuk memaksimalkan waktu kunjungan. Hasil dari penelitian ini berupa Aplikasi yang dapat diakses secara online oleh pengunjung melalui jaringan internet. Aplikasi ini dapat memudahkan pengunjung untuk melakukan pendaftaran kunjungan dan mempersingkat waktu pendaftaran kunjungan yang dapat dilakukan mandiri oleh pengunjung serta membantu petugas pelayanan kunjungan untuk melakukan mengolahan data pengunjung yang lebih cepat dan akurat.Kata Kunci : aplikasi, website, kunjungan, online, pemasyarakatan, lapas
Pengaruh Efikasi Diri dan Dukungan Sosial Guru Terhadap Prestasi Belajar Matematika Siswa
Authors: Uran Apolonia Letekina , Leton Samuel Igo , Uskono Irmina Veronika
Published: October 2019

This study aims to determine the effect of self-efficacy and teacher social support on mathematics learning achievement of class VII students of one of the Private SMP in Kupang city social arithmetic material. The type of research used is quantitative with the statistical analysis used in this study, namely multiple regression analysis. The sample in this study is class VII A, amounting to 25 people randomly selected from 4 existing classes. The type of data in this research is primary data with data collection used, namely questionnaires and achievement test questions. Technical data analysis in this study used multiple regression analysis. Based on the partial test results on self efficacy showed that  = 3.164> 1.71 = , teacher social support obtained  = 2.954> 1.71 = , then with a significant level of 5% there is a partial effect on self-efficacy and social support teacher. Furthermore, the simultaneous test shows that = 55,176 and at a significant level of 5% which means that  = 55,176 > 3,44 = , then there is a simultaneous influence on teacher self-efficacy and social support . So, it was found that self-efficacy and social support of teachers had a significant influence on mathematics learning achievement both partially and simultaneously. Thus, it was concluded that there was an effect of teacher self-efficacy and social support on students' mathematics learning achievement. The coefficient of determination (R Square) = 0.834. This means that 83.40% of the variation in mathematics learning achievement can be explained by variations in the two variables, namely self-efficacy and teacher social support. Meanwhile, 16.60% is influenced by other variables.
Kategorisasi Kemampuan Literasi Matematika Siswa SMP Negeri Se-Kota Kupang Berbantuan Fuzzy Inference System Metode Mamdani
Authors: Fointuna Daniel W. , Kaluge Agapitus H. , Fernandez Aloysius J.
Published: October 2019

This survey aims to describe the mathematical literacy of state junior high school students in Kupang city, East Nusa Tenggara province. It was done not only due to the low achievement of Indonesian 15-year-old students in PISA but also because there are no surveys which had been done before to map the mathematical literacy of students in Kupang city. A total of 377 respondents who were the ninth grade students representing six state junior high schools in Kupang were collected by two-stage cluster randomized sampling. The students were assessed using fifteen problems adopted from PISA 2012 and some development researches with a product of mathematical literacy problems so that those items were highly reliable to measure students mathematical literacy. The categorization of students mathematical literacy was carried out using Mamdani’s Fuzzy Inference method. The input of fuzzification was a score of three process domains assessed by those fifteen problems, specifically formulating, employing, and interpreting. The output of defuzzification was students mathematical literacy score used to determine the category of students mathematical literacy. The results showed that the mathematical literacy of state junior high school students in Kupang city was generally classified as a low category.