bluuebunny/crossref_metadata_2025_split huggingface dataset:
Procrastination and cheating from secondary school to university
Authors: Clariana Mercè , Gotzens Concepción , Badia M. del Mar , Cladellas Ramon 
Published: February 2018

Introduction. This article has two purposes. First, to show the correlation between two unfortunately very common academic habits: procrastination and cheating. Second, to analyse the sequential trend of these two tendencies, from the final year of compulsory secondary education (in Spain 4th year of ESO; age 16) to the final year of university (age 22).Method. The participants in the study are 171 female students from public and private schools in Barcelona (Spain). During the research they were in 4th year of ESO, 2nd year of baccalaureate, 1st year of university, and 4th year of university, respectively. All of them were individually interviewed and ad-ministered with self descriptive questionnaires about academic cheating and academic procrastination. In order to find connections between variables and to identify differences between groups bivariate two-tailed Pearson correlations and ANOVA’s series were calculated for the collected data.Results. As expected both procrastination and cheating highly and negatively correlate with academic grade. Besides, the connection between the two variables, cheating and procrastination is positive and moderate. Otherwise, the incidence of both habits is low in ESO, showing a sudden and striking rise in the final year of baccalaureate -which can also be observed in the first year of university- and a dramatic drop in the final year of tertiary education, just before graduation.Discussion and Conclusion. In summary, our data show that the transition years from secondary school to university (ages 18 and 19) are the worst in terms of the students’ propensity to procrastinate and cheat, two characteristics which significantly contribute to weaken academic learning. According to the results, special support for students in these two academic years should be offered to stop or at least to reduce the reported developments.
El dominio afectivo en el aprendizaje de las Matemáticas.
Authors: Gil Ignacio Nuria 
Published: February 2018

Introducción. La finalidad de este trabajo es analizar las creencias, las actitudes y las reacciones emocionales que los estudiantes experimentan en el proceso de aprendizaje de las matemáticas. El objetivo es conocer si las creencias, actitudes y atribuciones positivas acerca de sí mismos como aprendices son una fuente de motivación y expectativas de éxito ante la materia.Método. Para ello, hemos empleado una muestra de 346 alumnos de segundo ciclo de Educación Secundaria Obligatoria (ESO) de Institutos de Badajoz, a los que se les aplicó un cuestionario sobre creencias y actitudes acerca de las matemáticas.Resultados y Discusión. Concluimos que el género no guarda relación con el autoconcepto matemático.
AKIBAT HUKUM BAGI NOTARIS YANG RANGKAP JABATAN SEBAGAI PEJABAT NEGARA
Authors: Tanugraha Jefry 
Published: February 2018

Profesi Notaris merupakan profesi yang terhormat karena tugas dari jabatannya adalah untuk melayani kepentingan masyarakat khususnya dalam bidang hukum perdata. Pada kenyataannya dalam praktik, seiring waktu dengan kian bertambahnya jumlah orang yang menjalani profesi Notaris dari waktu ke waktu, ditambah dengan perkembangan teknologi dan adanya kesempatan bagi sebagian Notaris untuk mendapatkan klien sebanyak mungkin, namun ada pula Notaris yang susah dalam mendapatan klien. Hal ini membuat sebagian oknum Notaris sampai melakukan rangkap. Penelitian ini bertujuan untuk menganalisis akibat hukum terhadap akta yang dibuat oleh Notaris yang rangkap jabatan sebagai pejabat negara; batasan jabatan pejabat negara yang dilarang rangkap jabatan oleh Notaris; dan relevansi larangan bagi Notaris merangkap jabatan sebagai pejabat negara dalam pelaksanaan tugas dan kewenangannya. Tipe penelitian ini adalah penelitian hukum normatif.Akibat hukum terhadap akta yang dibuat oleh Notaris yang rangkap jabatan sebagai pejabat negara yakni terhadap akta yang dibuat tersebut akan kehilangan otentiknya, dan akta tersebut hanya mempunyai kekuatan sebagai akta yang dibuat di bawah tangan apabila ditanda-tangani oleh para pihak yang bersangkutan. Batasan dari rangkap jabatan Notaris secara eksplisit sudah jelas diatur di dalam UUJN diantaranya adalah larangan Notaris merangkap sebagai Pegawai Negri, Pejabat Negara, Advokat, Pemimpin atau pegawai Badan Usaha Milik Negara, Badan usaha Milik Daerah atau Badan usaha Swasta, Pejabat Pembuat Akta Tanah di luar wilayah jabatan Notaris. Sedangkan Relevansi larangan bagi Notaris merangkap jabatan sebagai pejabat negara dalam pelaksanaan tugas dan kewenangan Notaris, yakni larangan rangkap jabatan Notaris yang merangkap sebagai pejabat negara diatur dalam Pasal 17 huruf (d) UUJN. Penjelasan dari pasal tersebut bahwa Notaris sebagai profesi yang bersifat mandiri, independent, tidak memihak salah satu pihak berbanding terbalik dengan profesi Advokat yang memihak kepada kliennya. Sehingga, apabila Notaris merangkap sebagai pejabat negara maka akan terjadi benturan kepentingan (conflict interest).Kata Kunci: Akibat Hukum, Notaris Rangkap Jabatan, dan Pejabat Negara.
Synthesis, Characterization and Biological Evaluation of New Dithiocarbamate Ligand and Its Complexes with some Metal Ions
Authors: Numan Ahmed T. , Ibraheem Kaiss R. , Ibrahim Mohammed K. 
Published: February 2018

New bidentate dithiocarbamate ligand (NaL) namely [Sodium-2-(((3-methyl -4- “(2,2,2-tri fluoro ethoxy) pyridin-2”-yl) methyl) sulfinyl)-1H-benzoimidazole -1-carbodithioate] was prepared. This free ligand was synthesized from the reaction of a (RS)-2-([3-methyl -4-(2,2,2-tri fluoroethoxy) pyridin-2-yl] methyl sulfinyl)-1H benzoimidazole, CS2 and NaOH in methanol as solvent. From reaction of dithiocarbamate salt (NaL) with metal ions (M); Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and Pd(II)”, have obtained the DTC complexes at general molecular formula [M(L)2(H2O)2] and [Pd(L)2]. To characterize the ligand and its complexes, used different analyses methods such FTIR, UV-Vis, elemental microanalysis, atomic absoreption, magnetic susceptibility, conductance, melting points, 1H- 13C- NMR spectroscopy, thermal analysis and mass spectrum. These studies indicated the formation of DTC complexes which their geometries about metal centers are octahedral; except Pd-complex is square planer. The bacterial activity evaluation against investigated bacterial species indicated that the metal complexes are more active than the free ligand when compared them.
Notion of investment under the ICSID Arbitration: A jurisdictional dilemma between subjective and objective approaches
Authors: Muhammad Nasiruddeen 
Published: February 2018

The notion of Investment is one of the most controversial issues trailing the dispute settlement mechanism of International Center for Settlement of Investment Dispute (ICSID). One notable issue surrounding the controversy is identifying an exact definition of investment for the purposes of ICSID Jurisdiction. While some tribunals tend to give effect to the agreement of the parties contained in their contracts or the underlying bilateral investment treaty as giving rise to the ICSID jurisdiction by consent, others tend to subject parties consent into a filtering mechanism based on a certain developed criteria. The aim of the paper is to add clarity to the corpus juris of investment treaty arbitration and provide guidance to the investment treaty tribunals regarding the determination of notion of investment. In doing so, the paper typifies the problem with the notable case of MHS v Malaysia. It then analyzes the two approaches from subjective and objective perspectives. The paper concludes with the proposition that ICSID notion of investment may not necessary lie with either of the two approaches.
Keyywords : Investment, treaties, jurisdiction
Stakeholder Theory at the Cross Road: A Holistic Model for Business Government and Society
Authors: Anadol Yaprak 
Published: February 2018

Stakeholder theory is one of the most accepted models explaining the business government and society. This short theory paper examines various issues related to the stakeholder theory in terms of several critical tensions, including the scope of the model, justice and efficiency considerations and value co-creation. The main contribution of this paper is to introduce the human factor as a focal point leading the social value co-creation and present profit optimization alternative rather than the profit maximization. Consumer perspective and role overlaps are emphasized and some concluding observations are provided with a suggested holistic model for the business government and society relationship.
Keywords : stakeholder theory, business government and society, value cocreation, Justice, effectiveness
Why should I trust ICT? An empirical study examining teachers and students usage of ICT for knowledge sharing and seeking
Authors: Khawaja Kausar Fiaz 
Published: February 2018

The purpose of conducting this study is to examine factors affecting teachers and students trust on ICT and ICT usage behavior for knowledge sharing and seeking. Two empirical studies were conducted; and data was collected from teachers and students of two public sector universities that specifically offer distance learning programs and use ICT for knowledge sharing and knowledge seeking. For study-1, data was collected from 350 students,; whereas for study-2, data was collected from 150 teachers. Statistical tests for descriptive analysis, correlation analysis, confirmatory factor analysis, reliability analysis and mediation analysis were conducted. The mediation results suggested that trust mediates the relationship between facilitating condition (FC) and usage Behavior (UB) for both the studies as proposed. Moreover, trust and intention sequentially mediated the relationship between performance expectancy (PE), effort expectancy (EE), social influence (SI) and UB in both the studies except between EE, SI and UB of study-2.
Keyword: Knowledge sharing, knowledge seeking, Trust, ICT, UTAUT
Perancangan Antarmuka Sistem Pakar Penyakit Padi Berbasis Web
Authors: Nugraha Febrianta Surya , Purwanto Febryan Hari , . Mayadi , Huda Miftahul , Munir Misbahul , Puji Riski Tri 
Published: February 2018

Antarmuka merupakan salah satu bagian dari perangkat lunak yang berhubungan langsung dengan pengguna. Pengguna berinteraksi dengan sistem perangkat lunak melalui antarmuka pengguna. Penelitan terdahulu pada sistem pakar penyakit padi hanya terbatas pada pengujian apakah sistem pakar dapat berjalan tanpa memperhatikan aspek antarmuka pengguna. Tujuan dari penelitian ini adalah merancang antarmuka pengguna (user interface) pada sistem pakar penyakit padi dengan berbasis web. Tahapan-tahapan pada penelitian ini adalah melakukan analisis calon pengguna dan pihak terkait yang dapat menjadi kandidat pengguna, pemilihan platform pengembangan yaitu berbasis web, analisis user environment atau lingkungan pengguna yang berkaitan dengan basis web, perancangan struktur menu, perancangan antarmuka, dan evaluasi. Hasil rancangan dievaluasi dengan menggunakan model pendekatan evaluasi heuristik penggunaan (usability heuristics) yang diperkenalkan oleh Jacob Nielson untuk mengetahui kekurangan dan saran rancangan antarmuka sistem pakar. Hasil dari evaluasi heuristik penggunaan adalah penggunaan kata berbahasa Inggris seperti username, password, FAQ serta penggunaan kata tidak baku yaitu diagnosa pada aspek kesesuaian antara sistem dan dunia nyata. Kurangnya ikon pada menu dan perbedaan tombol dan teks yang kurang jelas pada aspek memahami lebih baik daripada mengingat. Pesan kesalahan yang muncul kurang detail
Pemanfaatan Google Spreadsheet Sebagai Media Pembuatan Dashboard pada Official Site iFacility di Perguruan Tinggi
Authors: Handayani Indri , Kusumahati Herrafika , Badriah Alpiah Nurul 
Published: February 2018

<p><em>Dashboard </em>merupakan tampilan yang di dalamnya terdapat informasi penting yang digunakan untuk mengambil sebuah keputusan. Informasi yang dimiliki oleh <em>dashboard </em>merupakan infomasi ringkasan dari suatu sistem. Dengan adanya perkembangan teknologi informasi yang canggih, saat ini <em>iFacility</em> yang merupakan salah satu <em>Official site </em>yang ada di Perguruan Tinggi Raharja belum menerapkan <em>dashboard. </em>Diperlukannya penerapan <em>dashboard </em>pelaporan AC pada <em>Official site iFacility</em> dengan menggunakan salah satu fitur <em>google </em>yaitu <em>Google Spreadsheet</em> yang bisa dimanfaatkan untuk menampung data dan mengolah data untuk dijadikan sebuah informasi yang dibutuhkan. Tahapan-tahapan identifikasi implementasi penelitian dilakukan dengan menggunakan metode observasi, wawancara terhadap divisi operasi, perbandingan sistem, perancangan prototype dan implementasi sistem ke dalam <em>official site iFacility</em>. <em>iFacility</em> merupakan tempat yang bisa memberikan informasi-informasi yang berguna dan mendapatkan<em> </em>informasi secara cepat dan tepat untuk mengambil sebuah tindakan atau sebuah keputusan secara efektif dan efisien tentang fasilitas yang dikelola secara <em>online</em>.</p><p>Kata Kunci : <em>Google Spreadsheet</em>, <em>Dashboard, iFacility, </em>Informasi.</p>
ANALISA DAYA DUKUNG TIANG PANCANG STATIS DAN DINAMIS PADA BENDUNGAN GERAK SEMBAYAT GRESIK
Authors: Santoso Reno Dwi , Kartikasari Dwi 
Published: February 2018

In general, foundation is defined as the underground building that continues the load from the weight of the building itself and fromthe external load that works at the buildi ng to the ground around it. Carrying capacity analysis of pile is needed to get the planning of foundation that meetsthe requirements. There are many calculation methods used to analyze the carrying capacity of the pile, but it needs to consider which method is more fulfilling from the data in the field, for that, it needs carrying capacity analysis of several methods based on field data using sondir data and compared to one another to obtain more realistic results. Capacity analysis method of pile on the construction of Dams Motion in Sembayat Gresik uses static and dynamic methods. In the dynamic method, it use several methods, those are Hiley equation, Wika Method, ENR method, Eytelwein Method, Navy-Mc.Kay Method, and Michigan State Highway of Commission Method. While in the static method, it uses Luciano Dacourt Method. From the analysis of the static pile carrying capacity obtained the result that pile carrying capacity calculation of Luciano Dacourt Method is smaller, pull Q permitted 15.25 tons and maximum press Q permitted 41.55 tons compared with the calculation method by using kalendering result of Eytelwein Method. In Eytelwein Method, the minimum pile carrying capacity is 61.566 tons of calculations in GW 1.
Ekstraksi Xilan dan Delignifikasi Bagas (Limbah Pabrik Gula)
Authors: Aniriani Gading Wilda 
Published: February 2018

Limbah ampas tebu (bagas) pabrik gula biasanya digunakan sebagai bahan bakar (ketel) dalam proses pemanasan, sisanya sengaja ditiimbun dan membusuk sehingga mengeluarkan air lindi (seperti molase) yang berbau tidak sedap. Pemanfaatan untuk pakan ternak maupun pupuk kompos memang masih dinilai memiliki nilai ekonomi yang kecil. Oleh karena itu dibutuhkan pengolahan yang memiliki nilai produk jual yang tinggi dan teknologi yang tepat guna. Teknologi yang dapat mengurangi volume limbah untuk dimanfaatkan sebagai bahan dasar industri lain merupakan sebuah sistem ekoindustri. Bagas tergolong jenis limbah lignuselulosa, dimana kandungan selulosa secara alami diikat oleh hemiselulosa (xilan) dan dilindungi oleh lignin, oleh karena itu disebut dengan lignoselulosa. Penelitian ini bertujuan untuk melakukan pretreatmen bagas dengan menghilangkan lignin dan mengekstraksi xilan. Produk yang dihasilkan merupakan jenis polisakarida, dimana dapat dimanfaatkan sebagai substrat enzim untuk proses pembuatan bioetanol, prebiotik, probiotik dan lain sebagainya. Proses pretreatmen bagas meliputi delignifikasi menggunakan sodium hipoklorit (NaOCl) 1% dan ekstraksi xilan menggunakan metode alkalin (NaOH 15%) sebagai pelarut. Hasil ekstraksi xilan dari bagas diperoleh 9,9% xilan dari bagas dan setelah pemurnian diperoleh 3,4 % xilan larut. Setiap melalui tahapan pretreatment terjadi pengurangan berat bagas dari 1000 g menjadi 34 g pada akhir pemurnian xilan. Rendemen bagas hasil delignifikasi sebanyak 704,74 g (29,74 %), dengan rendemen ekstraksi sebanyak 98,80 g xilan (9,9 %) dan setelah purifikasi didapatkan 3,4 % xilan murni.
Double Neutron Star Mergers and Short Gamma-ray Bursts: Long-lasting High-energy Signatures and Remnant Dichotomy
Authors: Murase Kohta , Toomey Michael W. , Fang Ke , Oikonomou Foteini , Kimura Shigeo S. , Hotokezaka Kenta , Kashiyama Kazumi , Ioka Kunihito , Mészáros Peter 
Published: February 2018

Abstract
The recent detection of gravitational waves and electromagnetic counterparts from the double neutron star merger event GW+EM170817 supports the standard paradigm of short gamma-ray bursts (SGRBs) and kilonovae/macronovae. It is important to reveal the nature of the compact remnant left after the merger, either a black hole or neutron star, and their physical link to the origin of the long-lasting emission observed in SGRBs. The diversity of the merger remnants may also lead to different kinds of transients that can be detected in future. Here we study the high-energy emission from the long-lasting central engine left after the coalescence, under certain assumptions. In particular, we consider the X-ray emission from a remnant disk and the nonthermal nebular emission from disk-driven outflows or pulsar winds. We demonstrate that late-time X-ray and high-frequency radio emission can provide useful constraints on properties of the hidden compact remnants and their connections to long-lasting SGRB emission, and we discuss the detectability of nearby merger events through late-time observations at ∼30–100 days after the coalescence. We also investigate the GeV–TeV gamma-ray emission that occurs in the presence of long-lasting central engines and show the importance of external inverse Compton radiation due to upscattering of X-ray photons by relativistic electrons in the jet. We also search for high-energy gamma rays from GW170817 in the Fermi-LAT data and report upper limits on such long-lasting emission. Finally, we consider the implications of GW+EM170817 and discuss the constraints placed by X-ray and high-frequency radio observations.
Using Cross Entropy Optimization to Model Active Galactic Nuclei Light Curves from VLBA MOJAVE Images
Authors: Vitoriano R. P. , Botti L. C. L. 
Published: February 2018

Abstract
We present in this article a new method to derive the observed properties of outbursts in relativistic jets. We use the VLBI MOJAVE maps to obtain the light curves, based on the principle that the variability of extragalactic sources, in this case 3C 279 and 4C +29.45, should appear in high resolution observations since 1996 until 2016. The use of the cross entropy method (CE) can accurately determine the ranges of parameters for a sequence of outbursts based on the shock-wave model, where the decay/rise timescale ratio has a small spread and the use of a unique index 1.3 generates a good fit modeled by functions of outbursts and by the model of the three stages. By the CE method, one can automatically get the start epochs as well as the occurrence of rise and decline times of the outbursts in the light curves. The values found are in agreement with the power-law distribution of energy, which shows that the cooling of electrons is a predominant process during the initial phase of the shock model evolution. The results of the decomposition show that the outbursts match the VLBI components observed in jets in addition to showing strong evidence of the peaks in the frequencies of 15.3 GHz. With this, we can model the shock waves with reference to the distance at the core of AGN to obtain the Doppler factor and the Lorentz factor.
Thermal Emission in the Quiescent Neutron Star SAX J1810.8-2609
Authors: Allen Jessamyn L. , Homan Jeroen , Chakrabarty Deepto , Nowak Michael 
Published: February 2018

Abstract
We have observed the neutron star low-mass X-ray binary SAX J1810.8−2609 in quiescence with XMM-Newton. SAX J1810.8−2609 is one of the faintest non-pulsing neutron star low-mass X-ray binaries in quiescence and previously only had upper limits on its quiescent thermal emission. We found SAX J1810.8−2609 at the same 0.5–10 keV, unabsorbed luminosity as the previous quiescent observation in 2003,

erg s−1. We show that the spectrum requires both thermal and nonthermal components, each contributing approximately half the total emission. The low neutron star luminosity suggests a time-averaged outburst accretion rate of

M
⊙ yr−1, in conflict with its observed outburst activity corresponding to a mass accretion rate that is an order of magnitude larger (

M
⊙ yr−1). Our observation designates SAX J1810.8−2609 more firmly as a member of a population of faint quiescent neutron star LMXBs whose quiescent thermal luminosity is not aligned with standard cooling models.
Explanation of the Knee-like Feature in the DAMPE Cosmic
Energy Spectrum
Authors: Fang Kun , Bi Xiao-Jun , Yin Peng-Fei 
Published: February 2018

Abstract
The DArk Matter Particle Explorer, a space-based high precision cosmic-ray detector, has just reported the new measurement of the total electron plus positron energy spectrum up to 4.6 TeV. A notable feature in the spectrum is the spectral break at ∼0.9 TeV, with the spectral index softening from −3.1 to −3.9. Such a feature is very similar to the knee at the cosmic nuclei energy spectrum. In this work, we propose that the knee-like feature can be explained naturally by assuming that the electrons are accelerated at the supernova remnants (SNRs) and released when the SNRs die out with lifetimes around 105 years. The cut-off energy of those electrons have already decreased to several TeV due to radiative cooling, which may induce the observed TeV spectral break. Another possibility is that the break is induced by a single nearby old SNR. Such a scenario may bring a large electron flux anisotropy that may be observable by the future detectors. We also show that a minor part of electrons escaping during the acceleration in young and nearby SNRs is able to contribute to a several TeV or higher energy region of the spectrum.
ALMA Dust Polarization Observations of Two Young Edge-on Protostellar Disks
Authors: Lee Chin-Fei , Li Zhi-Yun , Ching Tao-Chung , Lai Shih-Ping , Yang Haifeng 
Published: February 2018

Abstract
Polarized emission is detected in two young nearly edge-on protostellar disks in 343 GHz continuum at ∼50 au (∼0.″12) resolution with Atacama Large Millimeter/submillimeter Array. One disk is in HH 212 (Class 0) and the other in the HH 111 (early Class I) protostellar system. The polarization fraction is ∼1%. The disk in HH 212 has a radius of ∼60 au. The emission is mainly detected from the nearside of the disk. The polarization orientations are almost perpendicular to the disk major axis, consistent with either self-scattering or emission by grains aligned with a poloidal field around the outer edge of the disk because of the optical depth effect and temperature gradient; the presence of a poloidal field would facilitate the launching of a disk wind, for which there is already tentative evidence in the same source. The disk of HH 111 VLA 1 has a larger radius of ∼220 au and is thus more resolved. The polarization orientations are almost perpendicular to the disk major axis in the nearside, but more along the major axis in the farside, forming roughly half of an elliptical pattern there. It appears that toroidal and poloidal magnetic field may explain the polarization on the near and far sides of the disk, respectively. However, it is also possible that the polarization is due to self-scattering. In addition, alignment of dust grains by radiation flux may play a role in the farside. Our observations reveal a diversity of disk polarization patterns that should be taken into account in future modeling efforts.