bluuebunny/crossref_metadata_2025_split huggingface dataset:
Adsorption kinetic characteristics of molybdenum in yellow-brown soil in response to pH and phosphate
Authors: Nie Zhaojun , Li Jinfeng , Liu Haiyang , Liu Shiliang , Wang Daichang , Zhao Peng , Liu Hongen 
Published: July 2020

AbstractMolybdenum (Mo) adsorption by acidic yellow-brown soil was investigated as a function of a pH (1–13) and the equilibrium of P solution (0, 3.1, and 31 mg L−1) concentration. Mo adsorption by acidic yellow-brown soil increased within the pH range from 1 to 4. Above pH 4, Mo adsorption decreases with an increase in pH. The maximum adsorption was found between pH 2 and 4. Competitive adsorption experiments showed that the equilibrium sorption data fitted into Langmuir and Freundlich isotherms. The sorption data of Mo on the acidic yellow-brown soil fitted well with the Langmuir isotherm model due to the higher R2 value. A reduction in Mo adsorption by the acidic yellow-brown soil was noticed at higher addition levels of P (3.1 and 31 mg L−1). Therefore, P increasing the bioavailability of Mo and enhancing Mo uptake by plants might be related to the inhibition of Mo absorption by the acidic yellow-brown soil.
Active photonic platforms for the mid-infrared to the THz regime using spintronic structures
Authors: Armelles Gaspar , Cebollada Alfonso 
Published: July 2020

Abstract
Spintronics and Photonics constitute separately two disciplines of huge scientific and technological impact. Exploring their conceptual and practical overlap offers vast possibilities of research and a clear scope for the corresponding communities to merge and consider innovative ideas taking advantage of each other’s potentials. As an example, here we review the magnetic field modification of the optical response of photonic systems fabricated out of spintronic materials, or in which spintronic components are incorporated. This magnetic actuation is due to the Magneto Refractive Effect (MRE), which accounts for the change in the optical constants of a spintronic system due to the magnetic field induced modification of the electrical resistivity. Due to the direct implication of conduction electrons in this phenomenon, this change in the optical constants covers from the mid-infrared to the THz regime. After introducing the non-expert reader into the spintronic concepts relevant to this work, we then present the MRE exhibited by a variety of spintronic systems, and finally show the different applications of this property in the generation of active spintronic-photonic platforms.
Long-Term Cyclic Loading Tests for Offshore Pile Foundations Based on Hydraulic Gradient Modeling
Authors: Lu Wenjun , Zhang Ga 
Published: July 2020

Abstract
Long-term dynamic response of pile foundations for offshore engineering has attracted more and more attention. The deflection accumulation and the natural frequency offset of the soil-pile system are two vital issues for the safety of offshore projects. However, the research on this topic is deficient because of the lack of effective test approaches. In this study, a new device was developed to investigate the long-term lateral cyclic response of a soil-pile system based on hydraulic gradient modeling. The downward seepage force was employed to create a supergravity field of high g-level. A long-term laterally cyclic loading unit was developed to simulate the cyclic loads under high g-level condition. This device was validated by comparing the results of a short-term centrifuge model test. The device was successfully applied into long-term cyclic loading tests of pile foundation. The test results showed that long-term cyclic loading induces the densification of the sand, the accumulative deflection of the piles, and the natural frequency variations of the soil-pile system. The limitations of 1 g-level model test in characterizing the long-term dynamic response of soil-pile system were clarified by comparing the results from 1 g-level and 100 g-level long-term tests.
Assessing the Use of Blending Charts to Estimate the Allowable Reclaimed Asphalt Pavement (RAP) Binder Content for Mixes Containing RAP from Different Sources
Authors: Elkashef Mohamed , Hung Shawn S. , Harvey John T. , Jones David 
Published: July 2020

Abstract
Blending charts are used by many agencies to design mixes with high-content reclaimed asphalt pavement (RAP). They are typically used with mixes containing more than 25 % RAP to determine the performance grade of the virgin binder or to obtain the maximum allowable RAP content. The aging condition of the RAP binders extracted from RAP can vary greatly based on years of service, climatic conditions, and traffic loading. The current specifications do not consider the stiffness of the RAP in determining the cutoff RAP percentage above which blending charts should be used. According to the current specifications, mixes containing less than 15 % RAP do not require a change to their virgin binder grade regardless of the RAP source. In this paper, extracted and recovered RAP binder from two sources representing different climatic conditions is blended with two virgin binders at different proportions. The rheological properties of the virgin and RAP binders and the resulting binder blends were compared using master curves and Black diagrams, and changes in the rheological parameters such as the crossover frequency and rheological index were noted. The blending chart procedure was used to determine the maximum allowable RAP binder ratio (RAPBR) for different mixes. The results show that the 25 % limit, currently specified, appears appropriate for the not very stiff RAP binder having a performance grade of PG94-4. However, for the stiff RAP binder (PG106+2), blending charts should be used for blends containing more than 18–20 % RAPBR. It was also shown that a change to the virgin binder is required for blends with as low as 6 % RAPBR, when the stiff RAP binder was used.
O Papel do Estágio Docência no Desenvolvimento de Competências Didático-Pedagógicas no Contexto da Pós-graduação em Contabilidade
Authors: Leal Edvalda Araujo , Ferreira Layne Vitoria , Farias Raíssa Silveira de 
Published: July 2020

Objetivo: Identificar as competências desenvolvidas no estágio docência para a formação didático-pedagógica por meio da percepção dos pós-graduandos da área contábil e professores orientadores/supervisores do estágio.
Método: A pesquisa foi realizada em duas etapas: na primeira, foram realizados dois grupos focais com a participação de discentes do PPGCC e a segunda consistiu em entrevistas semiestruturadas com cinco docentes do mesmo programa, supervisores de estágio. A análise dos dados resultou em três categorias : a função do estágio docência; as habilidades e competências proporcionadas pelo estágio na formação docente e a visão dos sujeitos do estudo a respeito dos desafios enfrentados durante o estágio.
Resultados: Verificou-se que o estágio docência pode contribuir para a formação do discente ao associar o conhecimento teórico à prática do ensino, estimulando o desenvolvimento de competências requeridas na docência. Identificou-se fragilidades na estrutura pedagógica proposta para o oferecimento do estágio docência na pós-graduação.
Contribuições: A pesquisa contribui para o aprimoramento do processo de estágio docência, ao propor que os objetivos educacionais sejam mais claros, assim como as diretrizes que norteiam sua realização. Bem como, a importância de um mecanismo que assegure que o discente terá um acompanhamento adequado por parte do professor que o orienta/supervisiona.
A RELEVÂNCIA DO VALOR JUSTO DOS DERIVATIVOS NAS INSTITUIÇÕES FINANCEIRAS APÓS A ADOÇÃO DO IFRS
Authors: Alves de Sousa Nadia , Contrera Malacrida Mara Jane , Diógenes Gois Alan 
Published: July 2020

Objetivo:Este estudo investiga se a adoção das IFRS alterou a relevância do valor justo dos derivativos no valor de mercado das instituições financeiras no mundo e no Brasil no período entre 2005 e 2015.
Método:A pesquisa é empírico-analítica e para a análise dos modelos propostos foi utilizada a técnica de dados em painel e realizados testes de adequação para melhor estimação. Foram selecionadas as 20 instituições financeiras brasileiras com ações negociadas na BM&FBovespa. Já em relação aos outros países, foram analisadas as instituições presentes na base de dados Bloomberg, totalizando 140 jurisdições e 1.853 instituições financeiras.
Resultados:Os resultados evidenciaram que não é possível afirmar que a variação do valor justo dos derivativos, associada à adoção das IFRS, exerce impacto no valor de mercado das instituições financeiras brasileiras. Para a amostra mundial foi encontrada relação relevante, sendopossível afirmar que a variação do valor justo dos derivativos, associada à adoção das IFRS, exerce impacto no valor de mercado das instituições financeiras mundiais.
Contribuições: Este estudo contribui para entendimento do papel dos derivativos e da adoção das IFRS no valor de mercado de instituições financeiras brasileiras e mundiais, o que se faz relevante dada sua importância e riscos associados.
A Study on the Largest Hydraulic-Fracturing-Induced Earthquake in Canada: Observations and Static Stress-Drop Estimation
Authors: Wang Bei , Harrington Rebecca M. , Liu Yajing , Kao Honn , Yu Hongyu 
Published: July 2020

ABSTRACTOn 17 August 2015, an Mw 4.6 earthquake occurred northwest of Fort St. John, British Columbia, possibly induced by hydraulic fracturing (HF). We use data from eight broadband seismometers located ∼50  km from the hypocenter to detect and estimate source parameters of more than 300 events proximal to the mainshock. Stress-drop values estimated using seismic moment and corner frequency from single-event spectra and spectral ratios range from ∼1 to 35 MPa, within the typical range of tectonic earthquakes. We observe an ∼5-day delay between the onset of fluid injection and the mainshock, a b-value of 0.78 for the sequence, and a maximum earthquake magnitude larger than the prediction based on the total injection volume, suggesting that the Mw 4.6 sequence occurred on a pre-existing fault and that the maximum magnitude is likely controlled by tectonic conditions. Results presented here show that pre-existing fault structures should be taken into consideration to better estimate seismic hazard associated with HF operations and to develop schemes for risk mitigation in close proximity to HF wells.
Migration, tourism, and the development of the home countries: Evidence from Morocco
Authors: Ahmed Mohamed Hadj , Djelti Samir , Guellil Mohammed Seghir 
Published: July 2020

The aim of this paper is to study, both theoretically and empirically, tourism as a channel of Migration and Development. Relaying on migration networks and trade literature, the study suppose that migration networks affect positively tourism flows to the origin countries. Theoretically, global migration networks effect on tourism is composed of migrant generations, transactions, preferences and emigrantsâ€™ life style effects. Such effects could adapt, promote and advertise tourism flows to origin countries. Empirically, the gravity model has been used to estimate the global effect of networks on Moroccan tourism inflows from the eight principal immigration countries during the periods (2000, 2010, 2011, 2012, 2013 and 2014). Our study reveals that a ten-percent rise in the emigration rate from Morocco increases the real value of Moroccan tourism inflows by 1.3 %.

Key words: Migration, Networks, Tourism, Development.
Pendugaan Emisi CO2 dari Lahan Gambut dengan Menggunakan Model Artificial Neural Network (ANN)
Authors: Farida Anna , Saptomo Satyanto Krido , Chadirin Yudi , Setiawan Budi Indra , Osawa Kazutoshi 
Published: July 2020

Abstract
Peatlands are the most efficient carbon sinks in large volumes. Peatland clearance makes CO2 emissions released into the air. a reference of Carbon emission had a great value compared with the results of carbon emissions measurement conducted by Indonesian researchers and academics. This study aims to Conduct a continuous estimation of CO2 emissions from peatlands over a long period of time, analyze the influence of the biophysical environment on CO2 emissions and obtain CO2 emissions based on measurements of biophysical environmental parameters using ANN model. The CO2 emissions measurements were performed by closed chamber method using Licor LI-8100 for 60 days. Biophysical environmental parameter measurements are also installed simultaneously. Biophysical environmental parameters measured include soil temperature, soil moisture and water table depth. The results showed that CO2 emissions reached 59.82 TonCO2 / ha / year with carbon emissions of 16.314 TonC / ha / year. Peatland CO2 emissions are influenced by environmental parameters of peat biophysics. Calculations using the ANN model obtained the highest correlation of R2 = 0.5545 which shows that the calculation of ANN model with measurement Emission has a high enough correlation and can be used as a reference to estimated peat CO2 peatland in Padang Island.
Abstrak
Lahan gambut merupakan penyimpan karbon yang paling efisien dalam jumlah besar. Pembukaan lahan gambut mengakibatkan emisi CO2 terlepas ke udara. Data emisi karbon yang menjadi rujukan memiliki nilai yang lebih besar daripada hasil pengukuran emisi karbon yang dilakukan oleh peneliti dan akademisi Indonesia. Penelitian ini bertujuan untuk Melakukan estimasi emisi CO2 dari lahan gambut secara kontinyu dalam periode waktu panjang, Menganalisis pengaruh lingkungan biofisik terhadap emisi CO2 dari lahan gambut dan Mendapatkan dugaan emisi CO2 dari lahan gambut berdasarkan hasil pengukuran parameter lingkungan biofisik dengan menggunakan model ANN. Pengukuran emisi karbon dilakukan dengan metode closed chamber menggunakan Licor LI-8100 selama 60 hari. Pengukuran parameter lingkungan biofisik juga diinstal secara bersamaan dengan pengukuran emisi CO2. Parameter lingkungan biofisik yang diukur meliputi temperatur tanah, kelembaban tanah, kedalaman water table. Hasil penelitian menunjukkan bahwa emisi CO2 lahan gambut mencapai 59.82 TonCO2/ha/tahun dengan emisi karbon adalah 16.314 TonC/ha/tahun . Emisi CO2 dipengaruhi oleh parameter lingkungan biofisik gambut yaitu suhu tanah, kelembaban tanah dan kedalaman water table. Perhitungan menggunakan model ANN diperoleh korelasi tertinggi sebesar R2 = 0.5545 yang menunjukkan bahwa hasil perhitungan model ANN dengan Emisi pengukuran memiliki korelasi yang cukup tinggi dan bisa dijadikan sebagai acuan dalam mengestimasi CO2 lahan gambut Pulau Padang.
Variabel Penentu Produktivitas Amil dan Kinerja Penyaluran Zakat dan Infaq pada Baznas Kabupaten di Provinsi Jawa Timur
Authors: Ahmad Zakiyyah Ilma 
Published: July 2020

This study aims to determine how the performance of BAZNAS Jawa Timur in zakat, infaq, and shadaqah distribution. This type of research is explanatory research, namely research that explains the relationship of the influence of independent variables on the dependent variable through the hypothesis test. Type of data used in this study is secondary data in the form of financial data sourced from financial statements related to the variables studied. Data source obtained by BAZNAS financial report in East Java Province. The results of this study are the zakat collection variable and infaq collection variable does not affect the amil productivity. Amil productivity does not affect the performance of zakat distribution and infaq distribution performance. All hypotheses are rejected.
Keywords: Zakat, Infaq, Shadaqah, Collecting, Amil Productivity, Distribution Performance.
ANALISIS KOMPETENSI CALON PENDIDIK PROFESIONAL DI FAKULTAS EKONOMI UNIVERSITAS NEGERI JAKARTA
Authors: Mukhtar Saparuddin , Ahnanto Ahnanto , Senja Marlina , Putri Tri Dahlia , Yulianti Yanti , Apriyanti Nurwandah , Suryani Lilis , Dedeh Dedeh , Pranawati Popon , Laelawati Laelawati , Herlina Rina , Alamanda Soraya , Mariana Rina , Saadah Siti , Nurâ€™aeni Fewi Siti 
Published: July 2020

Penelitian ini bertujuan untuk mengarahkan calon-calon guru untuk menjadi guru yang profesional dan Untuk mengetahui tugas-tugas yang diemban untuk menjadi guru profesional. Metode Penelitian Metode yang digunakan dalam penelitian ini adalah metode survei dengan pendekatan deskriptif verifikatif yang dilaksanakan diFakultas Ekonomi Universitas Negeri Jakarta. Sampel penelitian diperoleh dengan menggunakan teknik slovin.sedangkan teknik analisa data yang dilakukan dalam penelitian ini adalah teknik uji regresi dan korelasi.
kriteria di tentukan berdasarkan pada hasil studi literature dengan proses klarifikasi dengan perwakilan mahasiswa pendidikan ekonomi dan administrasi di fakultas ekonomi unj. jumlah kuesioner yang di sebar adalah 30 sampel.
Hasil penelitian menunjukkan indikator kecakapan profesional ditunjukan dengan presentase kuesioner sangat setuju antara lain sebesar 50%, sedangkan yang setuju sebesar 50%, Rekapitulasi keseluruhan hasil kuesioner indikator kecakapan pedagogik menunjukkan 27% sangat setuju jika pendidik mempunyai kecakapan pedagogik dan yang menyatakan setuju sebanyak 73%. Responden ternyata menganggap bahwa calon pendidik profesional harus memiliki kecakapan pedagogik sebagai bekal pendidik profesional. Hasil rekapitulasi keseluruhan kuesioner kecakapan sosial dari responden pendidikan ekonomi dan administrasi menunjukkan bahwa sangat setuju dengan kecakapan sosial, ditunjukan dengan lebih dari 73% responden yang menyatakan sangat setuju serta 27% setuju perlunya pendidik memiliki kecakapan sosial.Hasil rekapitulasi keseluruhan kuesioner indikator kecakapan pribadi menyatakan 40% sangat setuju serta 60% setuju bahwa kecakapan pribadi menjadi pegangan kuat dalam sikap dan etos kerjamenjadi pendidik profesional.
Interpretasi dan Aktualisasi Nilai-nilai Etika Nadham Alfiyah Ibnu Malik Dalam Kehidupan Sosial (Pendekatan Obyektif Pragmatik)
Authors: Mustofa Arif , Gufron Gufron , Rauf Abdullah Zainur 
Published: July 2020

The book of “Alfiyah” as a thymed book of Arabic grammar written by Ibn Malik in the 13<sup>th</sup> century, contains Nahwu and Sharf.Althaugh there is tymed linguistic, implicity contains a message of ethics.This study aims to describe the ethical valuescontained in the book alfiyah and its actualization in social life.This research is a qualitative research that is included in the form of literary critism with objective pragmatic approach.After studying and analyzing the data, then it is obtained tahat the book alfiyah written by ibn Malik in addition describe the rules of Arabic language there several tymes containing ethical values such as ,1) human ethics as a servant of God i.e.gratitude, istiqomah, love the massanger, not the arrogant, tawadhu, sincere, shelter and ast to God, 2) the ethics of human being as individuals,i.e. hold emotions, a useful talk, identity, consistent, calm, independent, professional, objective, hard worker, has a leadhership skill, love to the God, focus on work, innovative, do not despair, appreciate the time, aspiring, greedy, not ethical either, so to be the exampke, optimisticand dynamic,3) human ethic as social beings that is communicative, ta’dhim, tolerant, transparent, keep secret, adaptive , selective to be friend, usable, discussing, cadre recruitment, motivtor, not arbritary, cooperation, professional, helping people another, fair, give precedence to the experienced, loyal, accommodate the opposition, wary of the association, upheld the equation, affection. Actualizting those values in society, can be done with;1) pracess of externalization of ethical values and socialization as well as his internal understanding, 2) objectivation process is the application through embodiment i.e. conditioning in social life or that is in the form of written norms or not in writing and in the form of real action that is a tradition in the community.
Pendampingan Guru TK dalam Pengembangan Metode Pembelajaran Anak Usia Dini
Authors: Hunainah Hunainah 
Published: July 2020

<p><strong><em>MENTORING KINDERGARDEN TEACHER </em></strong><strong><em>IN DEVELOPMENT EARLY AGE</em></strong><strong><em> </em></strong><strong><em>LEARNING METHODS.</em></strong> This study aims to determine the ability of teachers in preparing Weekly Working Plan and Daily Working Plan; Applying early childhood learning methods; Making learning properties from natural materials; and the understanding of Islamic teachings based on the Holy Qur'an and Sunnah to the Kindergarten Teachers' Aisyiyah Bustanul Athfal Puloampel in 2017. In this study, the researcher used qualitative research method. Qualitative research intends to understand the phenomenon of what by research subjects such as behavior, perception, motivation, action, and others. The results showed that the teacher’s skill in using early childhood learning methods in teaching at a Kindergarten Aisyiyah Bustanul Athfal Puloampel in 2017 is quite varios, they used lecturing method, question-answer, singing and assignment methods. This is shown by the teachers who only used student exercise books and magazines as the main learning media. The understanding of Islamic Teaching of the teacher was still minimum. This is indicated by the practice of worship of the teachers were not based on the Decision of Tarjih Muhammadiyah.</p>
Perkembangan Karakter Mandiri dan Jujur Pada Anak Usia Dini (Studi Kasus Anak-Anak KB Wadas Kelir Purwokerto Selatan)
Authors: Samiaji Mukhamad Hamid 
Published: July 2020

<p align="justify">Tulisan ini mencoba untuk mendiagnosa perkembangan karakter mandiri dan jujur terutama di lingkungan pendidikan anak usia dini. Tujuan dari penelitian ini adalah untuk mengetahui bagaimana perkembangan karakter mandiri dan jujur di Kelompok Bermain Wadas Kelir Purwokerto Selatan beserta faktor pendukung dan penghambat dalam pelaksanaannya. Berdasarkan pada sasarannya, metode penelitian yang digunakan dalam penelitian ini adalah kuantitatif dengan jenis penelitian lapangan (<em>field research) </em>dalam konteks (<em>case study research</em>). Hasil penelitian ini menujukkan bahwa perkembangan karakter kemandiri dan kejujujuran anak di Kelompok Bermain Wadas Kelir Purwokerto Selatan sudah bertumbuh dan berkembang dengan baik sesuai dengan perkembangannya. Hal ini ditunjukkan dengan; (1) perkembangan karakter kemandirian makan dan minum sendiri;) perkembangan karakter kemandirian memakai pakaian dan sepatu sendiri; perkembangan karakter kemandirian merawat dirinya; perkembangan karakter kemandirian memilih aktivitas yang disukai; perkembangan karakter kemandirian tidak ditunggui oleh orang tua di sekolah; dan perkembangan karakter kemandirian merapikan mainan setelah selesai bermain. (2) perkembangan karakter jujur mau mengantri, mau mengakui kesalahan, dan menghargai keunggulan orang lain.<strong></strong></p>