bluuebunny/crossref_metadata_2025 huggingface dataset:
Friction-Stir Welding of a Wrought Al-Si-Mg Alloy in As-Fabricated and Heat-Treatment States
Authors: Wang Chunxia , Cui Hongbo , Tang Xin , He Kezhun
Published: February 2020

A wrought Al-11.3Si-0.6Mg alloy under hot extrusion (T1), solution treatment (T4), and solution treatment + artificial aging (T6) states were friction stir welded at welding speed of 100 mm/min and rotation rate of 800 rpm. The effect of prior heat-treatment on the microstructure and mechanical properties of the welds were investigated. The results show that the microstructures of the nugget zones have little dependence on the initial states of the base material. In the nugget zones, complete recrystallized structures with equaxied grains in the Al matrix were formed under all conditions. The Si particles in the nugget zones are almost unchanged compared with those of their base materials (BMs) in the three states. In contrast, the joint efficiency of the obtained welds was very sensitive to the initial material condition. The joint efficiency under the T1 state is more than 90% due to the fact that the microstructure is almost unchanged, except for the slight coarsening of the Al matrix grains and some of the Mg2Si phases during the friction stir welding process. However, the joint efficiency in the T4 and T6 conditions is only 77.22% and 62.03%, respectively. The relatively low weld strength in the T4 and T6 conditions is due to the elimination of the solid solution strengthening and age hardening effects during friction stir welding. The hardness distributions along the cross section of joints are all W-shaped under T1, T4, and T6 conditions.
Application of Ilmenite Mud Waste as an Addition to Concrete
Authors: Chyliński Filip , Kuczyński Krzysztof , Łukowski Paweł
Published: February 2020

Storing waste in concrete instead of landfills is environmentally friendly and also might make concrete more sustainable if some part is replaced with cement. This article presents a new way of valorising hazardous waste, namely ilmenite MUD from the production of titanium dioxide, which is used as a reactive additive to concrete. In fact, there are currently no articles presenting the way of valorisation that is presented in this paper. The global annual production of MUD is estimated to be about 0.7 million tons. Valorisation is possible due to the additional rinsing and filtering in the factory, which also confirms the novelty of this article. In this operation, the most hazardous compounds are returned back to the factory process. Rinsed mud (RMUD) is a pozzolanic reactive material with the potential use as a substitute of a part of Portland cement in concrete and other cementitious binders, like siliceous fly ash (FA). The level of RMUD pozzolanic activity is as high as the activity of siliceous fly ash. Comparative tests of concretes containing RMUD and fly ash, such as compressive strength, bending strength and shrinkage, were conducted. The concrete containing RMUD reached almost 90% of compressive and 108% of bending strength after 28 days of curing, compared to FA concrete. The results presented in this article are very promising and might point to a new way of valorising ilmenite mud waste.
Effect of Ball Milling on the Absorption Properties of Fe3O4
Authors: Liang Yi , Yuan Yue , Huang Yuwei , Wang Yujiang , Wei Shicheng , Wang Bo , Huang Wei , Xin Wei , Wang Xinlei
Published: February 2020

FeCl3∙6H2O was used as raw material to produce Fe3O4, using the solvothermal method with ethylene glycol as the solvent. Fe3O4, with different particle sizes, was obtained via mechanical ball-milling by controlling the milling time. Effect of the milling time on the structure, morphology, and electromagnetic parameters of Fe3O4 were studied, and the absorption properties and mechanism of Fe3O4, for different milling times were analyzed. The results showed that the integrity of the original small spherical structure decreased as the ball milling time increased. Fe3O4 showed excellent microwave absorptions as the milling time reached 2 h, the reflection loss reached the maximum of −21.19 dB at 4.64 GHz as the thickness was 6.55 mm.
Free Vibration Analysis of Closed Moderately Thick Cross-Ply Composite Laminated Cylindrical Shell with Arbitrary Boundary Conditions
Authors: Shi Dongyan , He Dongze , Wang Qingshan , Ma Chunlong , Shu Haisheng
Published: February 2020

A semi-analytic method is adopted to analyze the free vibration characteristics of the moderately thick composite laminated cylindrical shell with arbitrary classical and elastic boundary conditions. By Hamilton’s principle and first-order shear deformation theory, the governing equation of the composite shell can be established. The displacement variables are transformed into the wave function forms to ensure the correctness of the governing equation. Based on the kinetic relationship between the displacement variables and force resultants, the final equation associated with arbitrary boundary conditions is established. The dichotomy method is conducted to calculate the natural frequencies of the composite shell. For verifying the correctness of the present method, the results by the present method are compared with those in the pieces of literatures with various boundary conditions. Furthermore, some numerical examples are calculated to investigate the effect of several parameters on the composite shell, such as length to radius ratios, thickness to radius ratios and elastic restrained constants.
Benchmark Problems of Hyper-Elasticity Analysis in Evaluation of FEM
Authors: Han Yang , Duan Junfeng , Wang Shoumei
Published: February 2020

The paper proposes benchmark problems on exact solutions of hyper-elastic analysis, which can be used to evaluate analysis capabilities of rubber-like materials provided by a finite element program or other approximate solution methods. Special attention was concentrated on analysis and derivation of the exact solutions for the thick-walled rubber cylinders under internal pressure and axial extension, the thick-walled rubber balloons under internal pressure and the rubber cylinders under torsion or tension-torsion. Deformation and stress analysis on the above three cases were conducted to provide equations and methods for data processing. Exact standard solutions of the problems combined with the strain energy function of generalized high-order polynomials are given. Numerical examples and evaluation results of two commercial packages that are in common use (ABAQUS and ANSYS) are presented. Good agreements are found in the comparisons between the present exact standard solutions and the simulation results.
Expanded Graphite/Paraffin/Silicone Rubber as High Temperature Form-stabilized Phase Change Materials for Thermal Energy Storage and Thermal Interface Materials
Authors: Zhang Yafang , Li Wang , Huang Juhua , Cao Ming , Du Guoping
Published: February 2020

In this work, expanded graphite/paraffin/silicone rubber composite phase-change materials (PCMs) were prepared by blending the expanded graphite (EG), paraffin wax (PW) and silicone rubber (SR) matrix. It has been shown that PW fully penetrates into the three dimensional (3D) pores of EG to form the EG/PW particles, which are sealed by SR and evenly embedded in the SR matrix. As a result of the excellent thermal stability of SR and the capillary force from the 3D pores of EG, the EG/PW/SR PCMs are found to have good shape stability and high reliability. After being baked in an oven at 150 °C for 24 h, the shape of the EG/PW/SR PCMs is virtually unchanged, and their weight loss and latent heat drop are only 7.91 wt % and 11.3 J/g, respectively. The latent heat of the EG/PW/SR composites can reach up to 43.6 and 41.8 J/g for the melting and crystallizing processes, respectively. The super cooling of PW decreased from 4.2 to 2.4 due to the heterogeneous nucleation on the large surface of EG and the sealing effect of the SR. Meanwhile, the thermal conductivity of the EG/PW/SR PCMs reaches 0.56 W·m−1·K−1, which is about 2.8 times and 3.73 times of pure PW and pristine SR, respectively. The novel EG/PW/SR PCMs with superior shape and thermal stabilities will have a potential application in heat energy storage and thermal interface materials (TIM) for electronic devices.
Fabrication and Evaluation of N-Channel GaN Metal–Oxide–Semiconductor Field-Effect Transistors Based on Regrown and Implantation Methods
Authors: Nguyen Huu Trung , Yamada Hisashi , Yamada Toshikazu , Takahashi Tokio , Shimizu Mitsuaki
Published: February 2020

We have demonstrated the enhancement-mode n-channel gallium nitride (GaN) metal-oxide field-effect transistors (MOSFETs) on homoepitaxial GaN substrates using the selective area regrowth and ion implantation techniques. Both types of MOSFETs perform normally off operations. The GaN-MOSFETs fabricated using the regrowth method perform superior characteristics over the other relative devices fabricated using the ion implantation technique. The electron mobility of 100 cm2/V·s, subthreshold of 500 mV/dec, and transconductance of 14 μs/mm are measured in GaN-MOSFETs based on the implantation technique. Meanwhile, the GaN-MOSFETs fabricated using the regrowth method perform the electron mobility, transconductance, and subthreshold of 120 cm2/V s, 18 μs/mm, and 300 mV/dec, respectively. Additionally, the MOSFETs with the regrown p-GaN gate body show the Ion/Ioff ratio of approximately 4 × 107, which is, to our knowledge, among the best results of GaN-MOSFETs to date. This research contributes a valuable information for the design and fabrication of power switching devices based on GaN.
The Examination of Restrained Joints Created in the Process of Multi-Material FFF Additive Manufacturing Technology
Authors: Kluczyński Janusz , Śnieżek Lucjan , Kravcov Alexander , Grzelak Krzysztof , Svoboda Pavel , Szachogłuchowicz Ireneusz , Franek Ondřej , Morozov Nikolaj , Torzewski Janusz , Kubeček Petr
Published: February 2020

The paper is focused on the examination of the internal quality of joints created in a multi-material additive manufacturing process. The main part of the work focuses on experimental production and non-destructive testing of restrained joints of modified PLA (polylactic acid) and ABS (Acrylonitrile butadiene styrene) three-dimensional (3D)-printed on RepRap 3D device that works on the “open source” principle. The article presents the outcomes of a non-destructive materials test in the form of the data from the Laser Amplified Ultrasonography, microscopic observations of the joints area and tensile tests of the specially designed samples. The samples with designed joints were additively manufactured of two materials: Specially blended PLA (Market name—PLA Tough) and conventionally made ABS. The tests are mainly focused on the determination of the quality of material connection in the joints area. Based on the results obtained, the samples made of two materials were compared in the end to establish which produced material joint is stronger and have a lower amount of defects.
Characteristics of Precipitation of Rare Earth Elements with Various Precipitants
Authors: Han Kenneth N.
Published: February 2020

The effective and selective leaching of rare earth elements (REEs) from various sources is frequently possible in practice by adopting a carefully coordinated strategy incorporating a selective precipitation of these elements from undesired ones in solution. In this study, the behavior of chemical precipitation of REEs with commonly used precipitants such as sulfate, carbonate, fluoride, phosphate, and oxalate was examined using thermodynamic principles and calculations. It was found that the pH of the system has a profound effect on determining particular chemical species of precipitants, which are subsequently responsible for the precipitation of REEs. The role of various anions such as Cl−, NO3−, and SO42− derived from the acid used in the leaching process on the precipitation behavior of REEs was examined. These anions form complexes with REEs and display a very positive effect on the precipitation behavior. The nitrate environment exhibits most conducive to precipitation followed by sulfate and then chloride.
Quantifying the Distribution Characteristics of Geochemical Elements and Identifying Their Associations in Southwestern Fujian Province, China
Authors: Wang Jian , Zuo Renguang
Published: February 2020

The distribution of geochemical elements in the surficial media is the end product of geochemical dispersion under complex geological conditions. This study explored the frequency and spatial distribution characteristics of geochemical elements and their associations. It quantifies the frequency distribution via mean, variance, skewness and kurtosis, followed by measuring the spatial distribution characteristics (i.e., spatial autocorrelation, heterogeneity and self-similarity) via semivariogram, q-statistic and multifractal spectrum, and further identify the elemental associations based on these distribution parameters using hierarchical clustering. A criterion was defined to identify the importance of parameters in the clustering procedure. A case study processing a geochemical dataset of stream sediment samples collected in southwestern Fujian province of China was carried out to illustrate and validate the procedure. The results indicate that studies of the frequency and spatial distribution characteristics of geochemical elements can enhance the knowledge of geochemical dispersions. The associations identified based on the frequency and spatial distribution parameters are different from those obtained by conventional cluster analysis. Spatial distribution characteristics cannot be neglected when investigating the distribution patterns of geochemical elements and their associations. The findings can enhance the knowledge of the geochemical dispersion in the study area and might benefit the following-up mineral exploration.
Food-Related Attentional Bias in Individuals with Normal Weight and Overweight: A Study with a Flicker Task
Authors: Favieri Francesca , Forte Giuseppe , Marotta Andrea , Casagrande Maria
Published: February 2020

The primary purpose of the present study was to investigate attentional biases for food-related stimuli in individuals with overweight and normal weight using a flicker paradigm. Specifically, it was tested whether attention allocation processes differ between individuals with overweight and normal weight using transient changes of food-related and neutral pictures. Change detection latencies in objects of central interest (CI) or objects of marginal interest (MI) were measured as an index of attention allocation in a sample of fifty-three students with overweight/obesity and sixty students with normal weight during a flicker paradigm with neutral, hypercaloric and hypocaloric food pictures. Both groups of participants showed an attentional bias for food-related pictures as compared to neutral pictures. However, the bias was larger in individuals with overweight than in individuals with normal weight when changes were of marginal interest, suggesting a stronger avoidance of the food-related picture. This study showed that food-related stimuli influence attention allocation processes in both participants with overweight and normal weight. In particular, as compared to individuals with normal weight, those with overweight seem to be characterised by a stronger attentional avoidance of (or smaller attention maintenance on) food-related stimuli that could be considered as a voluntary strategy to resist food consumption.
Strain-Specific Probiotic Properties of Bifidobacteria and Lactobacilli for the Prevention of Diarrhea Caused by Rotavirus in a Preclinical Model
Authors: Azagra-Boronat Ignasi , Massot-Cladera Malén , Knipping Karen , Garssen Johan , Ben Amor Kaouther , Knol Jan , Franch Àngels , Castell Margarida , Rodríguez-Lagunas María J. , Pérez-Cano Francisco J.
Published: February 2020

Probiotic supplementation with different lactobacilli and bifidobacterial strains has demonstrated beneficial effects in infectious diarrhea caused by rotavirus (RV) in young children. Preclinical models of RV infection might be a good strategy to screen for the efficacy of new probiotic strains or to test their comparative efficacy. Neonatal Lewis rats were supplemented with Bifidobacterium breve M-16V, Lactobacillus acidophilus NCFM, Lactobacillus helveticus R0052, or Lactobacillus salivarius PS2 from days 2–14 of life. On day five, animals received RV SA-11 orally. Fecal samples were collected daily, weighed, and scored for the calculation of severity and incidence of diarrhea. In addition, fecal pH and fecal viral shedding were measured. Animals were sacrificed at the end of the study and their blood was obtained for the quantification of RV-specific immunoglobulins. RV infection was induced in ~90% of the animals. All probiotics caused a reduction of several clinical variables of severity and incidence of diarrhea, except L. salivarius PS2. L. acidophilus NCFM, B. breve M-16V, and L. helveticus R0052 seemed to be very effective probiotic strains. In addition, all Lactobacillus strains reduced the viral elimination one day post-inoculation. No differences were detected in the specific anti-RV humoral response. The present study highlights the strain-specific effects of probiotics and identifies promising probiotics for use in ameliorating and preventing RV-induced diarrhea in children, for example by including them in infant formulas.
Potential Health Claims of Durum and Bread Wheat Flours as Functional Ingredients
Authors: Ciudad-Mulero María , Barros Lillian , Fernandes Ângela , C.F.R. Ferreira Isabel , Callejo Mª Jesús , Matallana-González Mª Cruz , Fernández-Ruiz Virginia , Morales Patricia , Carrillo José M.
Published: February 2020

Wheat is an important cereal with a key role in human nutrition. In this study, dietary fiber (DF) and arabinoxylans of different durum (Triticum turgidum ssp. Durum L.) and bread (Triticum aestivum L.) wheat flours were analyzed in order to point out their potential nutritional and health claims allege according to the current European regulation (Regulation (EU) No 432/2012). Moreover, other bioactive compounds (phenolics and tocopherols) were quantified as a first approach to their phytochemical composition in the analyzed wheat varieties. DF was analyzed following AOAC enzymatic-gravimetric methods; arabinoxylans and total phenols were quantified by colorimetric methods; tocopherols were determined by HPLC; antioxidant activity was evaluated using three different in vitro assays. Insoluble DF was the prevailing fraction in all analyzed samples. Water extractable arabinoxylans were higher in durum wheat flours. Whole flours contained higher total phenolics compounds. Alpha-tocopherol was the major isoform. Whole flours showed higher antioxidant properties. According to the obtained results, it is possible to allege all approved health claims referred to wheat, since all analyzed samples, especially whole flour and bran fraction, showed potential health benefits, as functional ingredients or functional foods, related with their phytochemical composition.
Gestational Diabetes Mellitus Treatment Schemes Modify Maternal Plasma Cholesterol Levels Dependent to Women´s Weight: Possible Impact on Feto-Placental Vascular Function
Authors: Contreras-Duarte Susana , Carvajal Lorena , Garchitorena María Jesús , Subiabre Mario , Fuenzalida Bárbara , Cantin Claudette , Farías Marcelo , Leiva Andrea
Published: February 2020

Gestational diabetes mellitus (GDM) associates with fetal endothelial dysfunction (ED), which occurs independently of adequate glycemic control. Scarce information exists about the impact of different GDM therapeutic schemes on maternal dyslipidemia and obesity and their contribution to the development of fetal-ED. The aim of this study was to evaluate the effect of GDM-treatments on lipid levels in nonobese (N) and obese (O) pregnant women and the effect of maternal cholesterol levels in GDM-associated ED in the umbilical vein (UV). O-GDM women treated with diet showed decreased total cholesterol (TC) and low-density lipoproteins (LDL) levels with respect to N-GDM ones. Moreover, O-GDM women treated with diet in addition to insulin showed higher TC and LDL levels than N-GDM women. The maximum relaxation to calcitonin gene-related peptide of the UV rings was lower in the N-GDM group compared to the N one, and increased maternal levels of TC were associated with even lower dilation in the N-GDM group. We conclude that GDM-treatments modulate the TC and LDL levels depending on maternal weight. Additionally, increased TC levels worsen the GDM-associated ED of UV rings. This study suggests that it could be relevant to consider a specific GDM-treatment according to weight in order to prevent fetal-ED, as well as to consider the possible effects of maternal lipids during pregnancy.
Dietary Habits and Dietary Antioxidant Intake Are Related to Socioeconomic Status in Polish Adults: A Nationwide Study
Authors: Zujko Małgorzata Elżbieta , Waśkiewicz Anna , Drygas Wojciech , Cicha-Mikołajczyk Alicja , Zujko Kinga , Szcześniewska Danuta , Kozakiewicz Krystyna , Witkowska Anna Maria
Published: February 2020

The aim of this study was to estimate dietary habits and dietary antioxidant intake in a Polish adult population in relation to socioeconomic status. The subjects (4774) were participants in the Polish National Multi-Centre Health Examination Survey (the WOBASZ II study) performed in 2013–2014. Socioeconomic status (SES) scores were calculated by multiplying ordinal numerical values assigned to consecutive categories of education level and monthly income per capita in a family. In the Polish adult population, a higher socioeconomic status was significantly associated with a better lifestyle (more physical activity and less smoking), a better health status (lower occurrence of overweight individuals and metabolic syndrome in both genders, and lower occurrence of central obesity, hypertension, and diabetes in women), and better dietary habits, including a higher intake of dietary antioxidants.
General practice recording of adverse childhood experiences: a retrospective cohort study of GP records
Authors: Williamson Andrea E , McQueenie Ross , Ellis David A , McConnachie Alex , Wilson Philip
Published: February 2020

Background

Adverse childhood experiences (ACEs) are linked to negative health outcomes in adulthood. Poor engagement with services may, in part, mediate the association between adverse outcomes and ACEs. While appointment recording is comprehensive, it is not yet known if or how ACEs are recorded in the GP clinical record (GPR).

Aim

To investigate recording of ACEs in the GPR and assess associations between available ACE-related Read codes and missed appointments.

Design & setting

Retrospective cohort study of 824 374 anonymised GPRs. Nationally representative sample of 136 Scottish general practices; data collected 2013–2016.

Method

Read codes were mapped onto ACE questionnaire and wider ACE-related domains. Natural language processing (NLP) was used to augment capture of non-Read-coded ACEs. Frequency counts and proportions of mapped codes, and associations of these with defined levels of missing GP appointments, are reported.

Results

In total, 0.4% of patients had a record of any code that mapped onto the ACE questionnaire, contrasting with survey-reported rates of 47% in population samples. This increased only modestly by including inferred ACEs that related to safeguarding children concerns, wider aspects of ACEs, and adult consequences of ACEs. Augmentation via NLP did not substantially increase capture. Despite poor recording, there was an association between ever having an ACE code recorded and higher rates of missing GP appointments.

Conclusion

General practices would require substantial support to implement the recording of ACEs in the GPR. This study adds to the evidence that patients who often miss appointments are more likely to be socially vulnerable.
SISTEM MONITORING DATA ASET DAN INVENTARIS PT TELKOM CIANJUR BERBASIS WEB
Authors: Mardiani Gentisya Tri
Published: February 2020

Pengelolaan perangkat di PT Telkom Cianjur merupakan hal yang sangat penting untuk dilakukan, karena perangkat merupakan salah satu aset perusahaan, sehingga data inventaris atas aset tersebut harus selalu dijaga agar dapat memberikan informasi yang jelas dan memudahkan dalam melakukan perawatan. Pengelolaan data perangkat memiliki banyak permasalahan seperti data pendistribusian perangkat kepada karyawan tidak terpantau karena data perangkat belum terorganisasi dengan data karyawan, sehingga apabila karyawan tersebut pindah jabatan atau tidak menggunakan kembali perangkat tersebut, informasi menjadi tidak jelas, kemungkinan adanya duplikasi data, serta menimbulkan ketidaksesuaian data dengan bukti fisik perangkat di lapangan.Proses untuk menjamin agar data dapat terjaga keakuratan dan kejelasan informasinya sehingga proses rekapitulasi data dan pelaporan data dapat berjalan dengan baik adalah monitoring terhadap data tersebut. Teknik dalam proses monitoring dilakukan dengan cara memeriksa data berdasarkan detil status perangkat, data stok perangkat, data pendistribusian perangkat berdasarkan lokasi kerja, dan dari proses monitoring akan menghasilkan laporan dan menjadi rekapitulasi data di setiap bulan. Metode analisis yang digunakan dalam pembangunan sistem ini adalah berdasarkan metode analisis terstruktur, dimana tools yang digunakan untuk memodelkan aliran data adalah DFD (Data Flow Diagram), diagram untuk memodelkan relasi antar data adalah diagram E-R.
SISTEM PENDUKUNG KEPUTUSAN REKOMENDASI PEMILIHAN PROGRAM STUDI MENGGUNAKAN METODE MULTIFACTOR EVALUATION PROCESS DI SMA NEGERI 1 BANDUNG
Authors: Okaviana Muhamad Reza , Susanto Rani
Published: February 2020

SMA Negeri 1 Bandung saat ini berjumlah 10 kelas. Dari setiap kelas, terdiri dari 30 sampai 40 orang siswa. Proses rekomendasi dalam pemilihan program studi yang dilakukan oleh guru bimbingan konseling masih dilakukan dengan cara wawancara kepada setiap siswa. Pada saat wawancara tersebut, guru bimbingan konseling akan melihat kecenderungan minat, bakat dan akademik siswa lebih sesuai ke program studi yang mana. Akan tetapi, rekomendasi yang diberikan tidak dapat dilakukan kepada seluruh siswa, dikarenakan keterbatasan dari guru bimbingan konseling untuk melayani banyaknya siswa. Sehingga hanya siswa yang bertanya kepada guru bimbingan konseling saja yang mendapat rekomendasi pemilihan program studi. Dalam penelitian ini dirancang sebuah Sistem Pendukung Keputusan (SPK) untuk membantu guru bk dalam memberikan rekomendasi pemilihan program studi kepada siswa. Sistem Pendukung Keputusan (SPK) dijadikan sebagai alternatif sistem yang membantu dalam mengambil keputusan untuk merekomendasikan pemilihan program studi kepada siswa.Sistem Pendukung Keputusan (SPK) ini menggunakan metode Multifactor Evaluation Process (MFEP). Metode MFEP adalah suatu metode dengan menuliskan faktor – faktor dan criteria perhitungannya dalam bentuk nilai bobot dari 0 sampai 1. Tahap selanjutnya dengan mengisikan nilai untuk setiap faktor yang mempengaruhi dalam pengambilan keputusan dari data-data yang akan diproses. Sistem Pendukung Keputusan ini dapat mempermudah Guru Bimbingan Konseling dalam memberikan rekomendasi pemilihan program studi kepada siswa dan Sistem Pendukung Keputusan ini dapat menghasilkan rekomendasi pemilihan program studi yang sesuai dengan minat siswa.
PEMBANGUNAN APLIKASI MEDIA PEMBELAJARAN DAN SIMULASI TROUBLESHOOTING TELEVISI
Authors: . Murawan , , S.T., M.Kom. Sufa’atin
Published: February 2020

Dewasa ini proses pembelajaran di sekolahsekolah masih bersifat konvensional yaitu dengan menggunakan buku dengan metode ceramah. Salah satu pembelajaran yang menggunakan metode ini adalah mata pelajaran teori dan praktikum televisi. Dengan menggunakan metode ini dan waktu belajar yang singkat banyak siswa yang kurang mengetahui tata cara urutan perbaikan televisi yang baik dan benar. Sedangkan dari pihak guru apabila akan melakukan evaluasi guru harus menyediakan berbagai macam keperluan setelah itu memeriksa satu persatu jawaban dari masing-masing siswasehingga membutuhkan waktu yang agak lama. Siswa membutuhkan media untuk mengetahui jenis televisi yang mengalami kerusakan. Sedangkan dari pihak guru memerlukan media dalam melakukan evaluasi mata pelajaran televisi. Berdasarkan permasalahan yang telah dijabarkan dibutuhkan suatu media berbatuan komputer untuk mempermudah siswa dan guru melakukan proses belajar mengajar yaitu suatu media pembelajaran yang disertai dengan simulasi. Media pembelajaran ini diharapkan dapat membantu siswa dalam memahami materi, dapat mengenali komponen kerusakan televisi, mengenali jenis kerusakan televisi, membantu guru dalam pelaksanaan evaluasi dan penilaian terhadap siswa didiknya.
PENGUKURAN TINGKAT KEMATANGAN KESELARASAN STRATEGI TI DAN BISNIS (STUDI KASUS UNIVERSITAS XYZ)
Authors: Maulana Hanhan
Published: February 2020

Universitas XYZ mengedepankan Teknologi Informasi sebagai dasar operasinya. Dengan kinerja TI yang baik diharapkan dapat meningkatkan kinerja universitas sehingga sasaran dan tujuan perusahaan dapat tercapai. Akan tetapi sampai saat ini penerapannya belum sepenuhnya dapat mendukung proses bisnis yang ada, dan belum dapat memberikan kontribusi yang maksimal terhadap bisnis. pihak manajemen (rektorat) juga ingin mengetahui dan memastikan apakah inisiatif-inisiatif TI yang sudah, sedang atau akan dilaksanakan sudah sesuai dengan strategi organisasi. Universitas XYZ seharusnya menerapkan TI tidak hanya sebagai pendukung kegiatan bisnis akan tetapi menerapkannya sebagai bagian dari strategi bisnis. Pada Penelitian ini, dinilai kesesuaian stretegi TI terhadap bisnis di Universitas XYZ menggunakan SAMM (Strategic Alignment Maturity Model) diperkenalkan oleh Luftman, model SAMM dibuat berdasarkan pengembangan dari 12 komponen pada model SAM Henderson dan Venkatraman dan hasil penelitian Luftman yang mengidentifikasikan faktor-faktor yang menjadi pemicu (enabler) dan penghambat (inhibitor) terhadap keselarasan antara bisnis dengan TI.
EVALUASI ANTARMUKA DAN PENGALAMAN PENGGUNA WEBSITE SERTA CODE REFACTORING PADA WEBSITE E-KOSAN
Authors: Amelia Annisa
Published: February 2020

Website E-Kosan dengan alamat e-kosan.com adalah salah satu website yang menyediakan informasi mengenai kosan untuk membantu pemilik kos dan pencari kos. Website ini diharapkan ramah terhadap pengguna baik dari segi antarmuka dan pengalaman pengguna. Berdasarkan data pra penelitian website E-Kosan masih memiliki nilai yang belum baik dari segi antarmuka dan pengalaman pengguna. Selain antarmuka dan pengalaman pengguna, standar pengkodean juga turut menunjang performa sebuah website. Tujuan dari penelitian ini adalah untuk menyediakan rekomendasi antarmuka website yang lebih baik. Metode yang digunakan dalam penelitian ini yaitu metode heuristic evaluation dan menerapkan code refactoring serta standar pengkodean. Heuristic evaluation adalah metode untuk menemukan masalah usability pada user interface. Code refactoring dan standar pengkodean dapat bermanfaat untuk memperbaiki performa website. Hasil dari evaluasi ini yaitu memberikan rekomendasi antarmuka website agar pengguna dapat merasakan antarmuka dan pengalaman pengguna yang lebih baik, kemudian membantu menerapkan standar pengkodean demi pengembangan website kedepan dan dapat memperbaiki kode website agar waktu akses website meningkat ketika diakses oleh pengguna.
Une «nouvelle» affaire Galilée ?
Authors: Mayaud Pierre Noël
Published: February 2020

Le succès du Galileo Heretico de Pietro Redondi, en 1983, fut grand et le reste pour beaucoup. Est-ce l’attrait de la nouveauté ? Tout le inonde (y compris les contemporains) s’était tout simplement trompé depuis 350 ans sur la raison de la condamnation de Galilée, motivée non par l’héliocentrisme mais par une antinomie radicale entre son atomisme et le mystère de l’Eucharistie dans la transsubstantiation ; une thèse que Pierre Costabel prendra pleinement à son compte, en l’appuyant même par des arguments nouveaux. Notre intention ici est de montrer, à partir de documents de première main, que cette thèse n’a aucun fondement ; notre analyse, souvent technique, n’aura pas le caractère de récit admirablement mené qui fait l’attrait du livre de Redondi. L’acte d’abjuration, le document anonyme, une série de faits allégués par Redondi, enfin et surtout le problème de la transsubstantiation constituent les points que nous envisageons principalement. Diverses annexes traiteront de problèmes plus particuliers : A. L’imprimatur de la Ratio Ponderum, B. Esquisse d’une biographie de Grassi, C. La commission spéciale, D. La Compagnie de Jésus et l’enseignement des idées nouvelles.
Enseñanza de la ética en programas de pregrado de ingeniería: el caso del Tecnológico Nacional de México
Authors: Olayo Valles Jorge Alberto , Armenta Verdugo Estrella Evelyn , Castro Borunda Zenia Isabel , Caro Dueñas María Azucena
Published: February 2020

Considering the huge boom that the integration of ethical notions in college education has had in universities around the world, this work is a research about this process in Mexico’s National Tech (TecNM). It specifically looks into the training of teachers who teach the Ethics Workshop subject in the TecNM, given its traditional vocation to train almost exclusively engineers. Through a nationwide survey of the areas responsible for assigning teachers who teachthe subject in question, it turns out that only 68% of these teachers have a related profile or have been trained to teach the Ethics Workshop. This shows that it is necessary to implement some strategy to improve the training of these teachers, and thereby reaffirm the importance of integrating ethical notions in the training of engineering students of the TecNM.
Integración educativa de alumnado de origen inmigrante: análisis psicopedagógico
Authors: Fernández-Castillo Antonio
Published: February 2020

En los últimos años, estamos asistiendo a la incorporación de contingentes significativos de alumnado de origen inmigrante a nuestros centros educativos, sin que exista demasiada experiencia por parte del sistema público para hacer frente a esta relativamente novedosa situación. Sin lugar a dudas, esta nueva tesitura está suponiendo un autentico reto para los profesionales de las ciencias de la educación. El objetivo fundamental de este artículo se centra en analizar la atención a este alumnado desde una perspectiva psicopedagógica. Comenzando desde una breve descripción de aspectos cuantitativos y descriptivos de la situación actual, se revisan cuestionamientos nucleares y se analizan circunstancias específicas relacionadas con la escolarización de niños de origen inmigrante. Se estudian aspectos aplicados y alternativas específicas de intervención educativa que contemplan y persiguen la socialización plena y el desarrollo integral de las minorías en y desde el contexto educativo. A lo largo del trabajo se revisan puntos fuertes y débiles en relación con aspectos relevantes de la integración educativa y social de alumnado de origen inmigrante en contextos escolares interculturales
Formación docente: retos y dificultades para poner al alumno en interacción con el objeto artístico
Authors: Collados Esther , Rickenmann René
Published: February 2020

El estudio que se presenta parte de la necesidad de aproximarse a la praxis artística tal y como toma forma a través de las prácticas escolares que se realizan en el aula, y encuentra un campo de estudio en las prácticas profesionales de los estudiantes durante su formación como docentes. El objetivo fundamental se centra en incrementar la comprensión sobre como desarrollan su trabajo, y hacer emerger posibles problemas y necesidades de la formación inicial del profesorado.Metodológicamente, este estudio está basado en el análisis contrastado de dos situaciones de enseñanza a partir de las categorías de la Teoría de la Acción Didáctica Conjunta (TADC), desarrolladas en el campo de la didáctica comparada (Sensevy & Mercier, 2007). Estas categorías sirven para describir y comprender, respectivamente: a) la evolución del medio didáctico y de los contenidos de enseñanza, b) el rol del docente y de los alumnos en la transformación de este medio y la manera en que trabajan sus posturas de experticia respecto a los retos de la tarea; c) finalmente, la organización temporal de las tareas y de los momentos de avance en los saberes a enseñar. El estudio también se interesa en otras dos categorías de análisis, el binomio devolución-regulación, en tanto que gestos profesionales de manejo de los tres tipos de procesos mencionados, que indagaremos a partir de las evidencias identificadas en las interacciones verbales, gestuales y proxémicas.
La formación del profesorado: una pauta para el análisis e intervención a través de incidentes críticos
Authors: Monereo Carles
Published: February 2020

Este trabajo tiene por objetivo realizar una propuesta fundamentada para la formación inicial y permanente del profesorado a través de una «pauta para el análisis de los incidentes críticos» que puedan producirse en el aula, a la que, a lo largo del artículo, nos referiremos por sus siglas: panic. Con el fin de justificar y argumentar dicha propuesta, se revisan, en primer lugar, las ventajas e inconvenientes de los principales modelos de formación de profesorado dominantes para, en un segundo momento, defender una formación que promueva un cambio más profundo, relativo a las concepciones, estrategias y sentimientos del docente, es decir, un cambio que afecte a su identidad profesional. Una modificación de esta naturaleza requiere identificar una unidad de análisis e intervención compleja, contextualizada y en la que se entrecrucen los distintos factores enunciados. Por su propia naturaleza, los incidentes críticos contienen esas características y así lo han reconocido distintas propuestas formativas centradas en ellos. Tras revisar y asimilar las mismas a los modelos de formación examinados al inicio del artículo, se concluye presentando una nueva propuesta formativa que trata de compensar algunas carencias de las iniciativas anteriores.
Las correspondencias artísticas como medio para desarrollar una visión global del arte en el aula
Authors: Ramos Ramos Pablo
Published: February 2020

El concepto de globalización curricular está muy presente en la educación actual. En el área de educación artística se observa una tendencia generalizada que trata de conectar las materias que la conforman (educación musical y educación plástica y visual); se intenta ofrecer al alumno una visión global del arte que trascienda el aislamiento existente entre dichas asignaturas. El autor explora las interacciones y correspondencias que, a lo largo de la historia, se han dado entre las diferentes artes con el fin de llegar a la globalización de esta área, es decir, empleando estas manifestaciones culturales a modo de bisagra entre la educación musical y la educación plástica y visual.
Formación y capacitación docente en Educación Artística: dos propuestas pensadas desde el Profesorado y Licenciatura en Educación Inicial para trabajar los nuevos escenarios educativos
Authors: Ros Nora , Iannone Nancy
Published: February 2020

La escuela debe formar ciudadanos que conozcan, comprendan, realicen y disfruten actividades artísticas, y para alcanzar esta meta se deben reivindicar los lenguajes artísticos y para esto es necesario contar con docentes capacitados, teórica y prácticamente, que asuman un compromiso con el desenvolvimiento socio-cultural del país ya que las artes son testimonio de una cultura, reflejo de una época y de diferentes formas de vida.En ese sentido es que los docentes del Área Artística del Profesorado y Licenciatura en Educación Inicial de la Facultad de Ciencias Humanas de la Universidad del Centro de la Provincia de Buenos Aires hemos desarrollado dos propuestas que atienden a nuevos escenarios educativos. Una responde al Proyecto de Extensión y Transferencia: “Talleres socio-educativos en la ciudad de Tandil” donde, a través de prácticas de aprendizaje-servicio, las alumnas de grado del Profesorado y Licenciatura en Educación Inicial trabajan los lenguajes artísticos en contextos de vulnerabilidad social.

La otra propuesta responde a un curso de capacitación denominado “Artística en la Escuela”. El mismo, está destinado a docentes de Educación Artística, de Nivel Inicial, de Nivel Superior y de Educación Especial y se desarrolla con modalidad semipresencial a distancia.
La práctica musical colectiva. Aprendizaje artístico y social
Authors: Muiños de Britos Stella Maris
Published: February 2020

A partir de dos investigaciones realizadas sobre la práctica musical colectiva en distintos campos empíricos, nos proponemos compartir algunas reflexiones que resultan del análisis del trabajo de campo y de la construcción del marco teórico. Esta práctica musical colectiva no es nueva, pero sí lo es en otros contextos no tradicionales, en los que se ha extendido, especialmente, en las últimas décadas. En esos ámbitos se promueven aprendizajes artísticos pero también otros: sociales, éticos, políticos, para los que dicha práctica es un espacio privilegiado. Con el objeto de recuperar y fortalecer su valor en términos de aprendizaje artístico, nos permitimos destacar su contribución al desarrollo de la experiencia humana, a la construcción de lazos sociales y a la recreación de un nuevo sentido, con “otros”. Las prácticas artísticas colectivas, en distintos contextos, resultaron campo fértil para la observación y el diálogo con los actores y para la identificación de elementos que hacen de la práctica musical colectiva, el espacio para recuperar el valor educativo del arte, la sensibilidad destituida, el desarrollo humano, el relato olvidado y el lazo social fracturado o destruido, en un mundo de “muchos”, sin “nosotros”.
A violência escolar
Authors: Martínez-Otero Pérez Valentín , Jardim de Miranda Renata
Published: February 2020

Neste artigo, atemo-nos a algumas questões relevantes, referentes aos problemas de convivência nos centros escolares. Embora esteja circunscrita a um âmbito de convivência respeitosa e se tratar de um centro de educação, a escola de hoje mostra um quadro cada vez mais grave de intolerância e violência, o que vem refletindo de forma negativa em sua própria razão de ser. Partindo da realidade espanhola, iremos explorar esta questão que tem se tornado uma preocupação universal e crescente. Com o objetivo de apontar algumas possibilidades de melhoria desta realidade, descrevemos e analisamos os comportamentos anti-sociais praticados com maior frequência nas escolas e assinalamos vias factíveis de intervenção, a exemplo da disciplina e do Programa de Desenvolvimento Pessoal (PDP).
Trabajo por proyectos: aprendizaje con sentido
Authors: Álvarez Borrego Valeria , Herrejón Otero Verónica del Carmen , Morelos Flores Mónica , Rubio González María Teresa
Published: February 2020

El presente proyecto de Innovación Educativa Basada en Evidencias (IEBE) fue realizado en el marco del curso Modelos y Estrategias de Enseñanza de la Maestría en Educación del Instituto Tecnológico de Estudios Superiores de Monterrey (ITESM) en México. La investigación se enfocó a la asignatura de Español en nivel secundaria, en dos escuelas de diferentes ciudades del país, Córdoba, Veracruz y Aguascalientes, ambas bilingües, mixtas y del sector privado. Se trata de una investigación realizada en cuatro contextos seleccionados por muestreo no probabilístico. El método de investigación fue mixto, integrando instrumentos cualitativos y cuantitativos para la recolección de datos.La investigación consistió en poner en práctica el método de trabajo por proyectos, como una vía para desarrollar competencias específicas como: integración de la teoría con la práctica, análisis situacional, activación de conocimientos previos, reflexión y análisis como un medio para conocer y comprender la realidad, establecimiento de metas de aprendizaje, desarrollo de automotivación y el pensamiento crítico, participación en la construcción de conocimientos a partir del intercambio de ideas, cognición social e individual, potenciar las habilidades cognitivas, entre otras.
PENERAPAN METODE WATERFALL DALAM PERANCANGAN SISTEM INFORMASI PENGGAJIAN PADA SMK BINA KARYA KARAWANG
Authors: Dede Firmansyah Hamid Kurniawan, Widya Apriliah, Ilham Kurniawan,
Published: February 2020

AbstrakSaat ini information Technology (IT) atau Teknologi Informasi (TI) sangatlah berpengaruh dalam dunia kerja dalam mengambil keputusan. Kebutuhan akan informasi yang cepat, tepat, dan akurat sangat penting. Berbagai instansi berusaha mengembangkan usahanya dengan melakukan banyak perubahan dengan memanfaatan teknologi yang canggih seperti Komputer sebagai pengganti tenaga kerja manusia. Penggajian merupakan salah satu kegiatan penting untuk kelancaran operasional perusahaan, dalam menyejahterakan karyawannya. Sistem penggajian adalah salah satu hal yang berkaitan dengan pengelolaan kesejahteraan tenaga kerja sehingga harus diberi perhatian khusus oleh perusahaan dalam rangka mencapai tujuannya. Smk Bina Karya 2 Karawang merupakan sekolah kejuruan dibidang otomotif yang berdiri sejak tahun 2000 dengan status kepemilikan yayasan budi asih. Dalam melakukan proses perekapan data absen, perhitungan penggajian smk bina karya 2 karawang masih menggunakan proses manual, proses menghitung penggajian dengan menggunakan proses manual memang mempunyai beberapa kendala seperti masalah  waktu menghitung gaji yang cukup lama dan keakuratan data yang kurang tepat, Berdasarkan kondisi tersebut maka diperlukan sebuah sistem informasi yang dapat memudahkan proses pengolahan data gaji dan meminimalisir kesalahan pada saat pengolahan data gaji sehingga dapat menghasilkan laporan yang lebih akurat dan mengolah data secara  efisien. Pemanfaatan teknologi informasi saat ini dapat digunakan menjadi suatu solusi untuk mengatasi permasalahan yang dihadapi sebuah lembaga. Oleh karena itu, sebagai solusi dari permasalahan diatas, pada penelitian ini penulis menggunakan metode wawancara, observasi dan wawancara sebagai metode pengumpulan datanya dan waterfall sebagai metode pengembangan software serta software Netbeans yang digunakan dalam merancang dan membuat sistem informasi pengolahan data gaji pada SMK Bina Karya 2 Karawang.Kata Kunci: Penggajian, Sistem Informasi Simpan Pinjam, Waterfall
Penerapan Model Water Fall Dalam Membangun Sistem Penjualan Berbasis Web Pada Nefertari Florist Bekasi
Authors: Yoraeni Ani , Adetian Adetian , Arfian Andi
Published: February 2020

Nefertari Florist adalah toko bunga online yang menjual karangan bunga dan melayani pengiriman ke seluruh kota besar yang ada di indonesia, dalam melakukan pembelian barang ke supplier dan pendataan Nefertari Florist masih menggunakan sistem manual dengan menggunakan Microsoft Excel.Nefertari Florist membutuhkan sekali adanya suatu sistem informasi yang menunjang dan memberikan pelayanan yang memuaskan bagi para customer. Untuk itulah peneliti mencoba membuat Tugas Akhir mengenai perancangan sistem pembelian berbasis web di Nefertari Florist yang sampai saat ini belum terkomputerisasi. Pada saat ini Nefertari Florist hanya berupa perusahaan yang bergerak dalam bidang Florist. Sistem yang ada pada Nefertari Florist ini masih dilakukan secara manual, mulai dari pencatatan customer yang membeli karangan bunga, sampai penyimpanan data-data lainnya yang berhubungan dengan proses pembelian hingga sampai pembuatan laporan, sehingga memungkinkan pada saat proses berlangsung terjadi kesalahan dalam pencatatan, kurang akuratnya laporan yang dibuat dan keterlambatan dalam pencarian data-data yang diperlukan. Perancangan sistem pembelian ini merupakan solusi yang terbaik untuk memecahkan permasalahan-permasalahan yang ada pada perusahaan ini, serta dengan sistem yang terkomputerisasi dapat tercapai suatu kegiatan yang efektif dan efisien dalam menunjang aktifitas pada perusahaan ini. Sistem yang terkomputerisasi lebih baik dari sistem yang manual agar berjalan lebih efektif dan efisien serta sistem penjualan yang sekarang lebih kondusif dibandingkan dengan sistem yang terdahulu.