bluuebunny/crossref_metadata_2025 huggingface dataset:
A forecasting approach of tropical cyclone genesis based on thresholds of multi-physical parameters and its verification using ECMWF model data
Authors: WEN FENG , LI ZHU , WAIKIN WONG , CHUNWING CHOY , JUNFENG MIAO
Published: November 2021

While considerable studies have proved that the track and intensity forecasts of tropical cyclone  (TC) relied heavily on output from numerical weather prediction (NWP) model, few researches investigated how well NWP models forecast TC genesis in the western North Pacific (WNP) basin. In order to understand the characteristics of TC genesis forecast in WNP basin by NWP models, this study derives a set of criteria to identify the formation of TC using historical data and verifies it based on ECMWF model data between 2013 and 2015. The results show that the percentile values adopted as the criteria thresholds have a significant impact on the performance of algorithm based on the criteria. A reasonable adjustment of threshold in a specific interval can effectively improve the TC genesis prediction. For example, in the WNP basin the forecast results are most sensitive to small changes in the relative vorticity on the 850 hPa level. The results of forecast test of the optimal threshold combination scheme indicate that the turning point of performance lies between 24 and 48 hours with regard to the hit rate in the 12-72 hours prior to the formation of TC. For lead time less than 24 hours, the hit rate was basically maintained at a high level above 0.7 with a small decrease. After that, the performance drops sharply before stabilizing beyond 48 hours. In addition, the performance of the TC genesis prediction in ECMWF model varies significantly from year to year and also in different WNP regions. It performs better to the east of the Philippines than over the South China Sea (SCS). On the other hand, high false alarm (FA) rates are found in the central parts of the SCS up to the waters around the Philippines and the central part of the WNP. The significant discrepancy in ECMWF’s performance can also be observed between different basins. Within the 24 hours before the genesis of a TC, the forecasts for the WNP basin verify better than those for the Atlantic basin.
Simulation of runoff in Baitarani basin using composite and distributed curve number approaches in HEC-HMS model
Authors: NIHARIKA SAHOO , B. PANIGRAHI , DWARIKA MOHAN DAS , D. P. DAS
Published: November 2021

The present study was conducted in Baitarani basin up to Anandapur gauging station of Odisha covering an area of 8603.7 km2. Pre-processing of basin from digital elevation model (DEM) was done using HEC-Geo-HMS extension and spatial analyst tool in ArcGIS. These pre-processed files were then imported to HEC-HMS for simulating runoff. In this study, runoff simulation was done using two methods, viz., composite and distributed curve number (CN) approaches. SCS curve number method was used for computation of runoff volume, SCS UH method for direct runoff, constant- monthly varying base flow method for base flow and Muskingum method for flow routing.  The model was calibrated and validated using both composite and distributed CN approaches. Data from 1st January, 2007 to 31st December, 2013 were used for calibration and 1st January, 2014 to 31st December, 2016 were used for validation. During the calibration period of composite CN approach, the statistical parameters like Nash-Sutcliffe efficiency (NSE), Coefficient of determination (R2), Percent bias (PBIAS) and RMSE-observations standard deviation ratio (RSR) were found to be 0.51, 0.63, 12.82 and 0.7, respectively and during the validation period they were found to be 0.53, 0.54,    -19.73 and 0.7, respectively. In case of distributed CN approach, the statistical parameters like NSE, R2, PBIAS and RSR were found to be 0.62, 0.63, -8.64 and 0.6, respectively during the calibration period and 0.67, 0.66, -2.25 and 0.6,  respectively during the validation period. The study indicated that distributed CN approach is more accurate than composite CN approach in simulation of runoff using HEC-HMS model.
Improved weather indices based Bayesian regression model for forecasting crop yield
Authors: YEASIN M. , SINGH K. N. , LAMA A. , GURUNG B.
Published: November 2021

As agriculture is the backbone of the Indian economy, Government needs a reliable forecast of crop yield for planning new schemes. The most extensively used technique for forecasting crop yield is regression analysis. The significance of parameters is one of the major problems of regression analysis. Non-significant parameters lead to absurd forecast values and these forecast values are not reliable. In such cases, models need to be improved. To improve the models, we have incorporated prior knowledge through the Bayesian technique and investigate the superiority of these models under the Bayesian framework. The Bayesian technique is one of the most powerful methodologies in the modern era of statistics. We have discussed different types of prior (informative, non-informative and conjugate priors). The Markov chain Monte Carlo (MCMC) methodology has been briefly discussed for the estimation of parameters under Bayesian framework. To illustrate these models, production data of banana, mango and wheat yield data are taken under consideration. We compared the traditional regression model with the Bayesian regression model and conclusively infer that the models estimated under Bayesian framework provided superior results as compared to the models estimated under the classical approach.
Problematizações acerca das violências no namoro: relato de experiência
Authors: Maffioleti Cavaler Camila , Ilka Jacinto Salvaro Giovana , Ovinsk Camargo Cortina Monica
Published: November 2021

Trata-se de um relato de experiência do estágio em Psicologia Social realizado em uma ONG no sul do estado de Santa Catarina. São abordadas problematizações produzidas em dois encontros específicos. O objetivo foi problematizar violências que permeiam o namoro e apresentar a rede de proteção à violência contra às mulheres. Participaram dos encontros aproximadamente 80 jovens, divididos em quatro grupos. Os encontros foram quinzenais, com duração de 1h30mim. Abordou-se as tipificações da violência doméstica, o ciclo da violência, a Lei Maria da Penha e o ECA. As discussões demonstraram situações em que as violências são conhecidas, naturalizadas e, às vezes, consideradas legítimas. Além disso, foi observado o reconhecimento do ciclo da violência, nos âmbitos pessoal e familiar. Suscitaram também discussões sobre redução da maioridade penal, racismo, violência policial e violências associadas a transtornos mentais. Ressaltamos a importância da construção de espaços que possibilitem a problematização e desnaturalização das situações de violência.
The Holy Spirit and Other Spirits in Asia: Discernment of Spirits in Non-Christian Religions
Authors: Kit Cheong Weng
Published: November 2021

Malaysia is an ethnically diverse and religiously pluralistic nation. Within its population Christians number 9.2% while the remainder is comprised of Muslims (61.3%), Buddhists (19.8%), Hindus (6.3%), and other religions (3.4%) such as Confucianism, Taoism, folk/traditional/animistic religions, and others (Department of Statistics Malaysia, 2010). It is thus not surprising that any non-Christian to Christian encounter should implicate followers of Jesus, who are trying to understand whether non-Christians may be following the right path towards truth and also whether the spirits they worship are in any biblical sense the Spirit of truth of which Jesus speaks (Jn. 14:17; 15:26; 16:13) or that of another spirit. If interreligious relationships can be understood in this context, then the task of discerning the spirits, whether it is the Holy Spirit or “other” spirits at work, is of great importance. Biblically, all Christians are called to discern the spirits (1 Jn. 4:1-3) of those at work in this world as well as the truth or error that may be perpetuated behind these spirits.
INTERAKSI YESUS DENGAN PETRUS DALAM INJIL MATIUS 16:21-28 SEBAGAI MODEL PENANGANAN MASALAH KEJIWAAN
Authors: Gabriel Silwanus
Published: November 2021

The author argues that the Pentecostal ministry that is in contact with the handling of psychiatric problems (PMK) can use the story of Jesus' interaction with Peter in Matthew 16: 21-28 as his foundation. Indeed, the story was not originally intended to talk about PMK at all, but when read using Christian psychological theory, it will be able to emerge from the basic principles of PMK. Jesus' interaction with Peter in Matthew 16: 21-28 also displays cognitive-behavioral aspects. Matthew expertly narrated the way Jesus used to give Peter a kind of therapy. Matthew records this event more fully than Mark and Luke. It is the completeness of these records that makes Matthew's writing suitable for use as a PMK model. For this purpose, a study of parallelism, background searches and culture will be used to discover Matthew's unique presentation compared to the other two Gospels. Next, Matthew's presentation of Peter's words and actions to Jesus and Jesus' response to those words and actions will be analyzed using cognitive behavioral therapy. In the end, the results of this study will be viewed from the Pentecostal side as a PMK model.

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Penulis berargumen bahwa pelayanan Pentakosta yang bersentuhan dengan penanganan masalah kejiwaan (PMK) dapat menggunakan kisah interaksi Yesus dengan Petrus dalam Matius 16:21-28 sebagai dasar pijakannya.  Memang kisah itu pada mulanya tidak dimaksudkan sama sekali untuk berbicara tentang PMK, tetapi ketika dibaca dengan menggunakan teori psikologi Kristen, maka dari dalamnya akan dapat dimunculkan prinsip-prinsip dasar PMK.   Interaksi Yesus dengan Petrus dalam Matius 16:21-28 juga menampilkan aspek cognitive-behavioural.  Dengan piawai Matius menarasikan cara yang digunakan Yesus untuk memberikan semacam terapi kepada Petrus.  Matius mencatat peristiwa ini dengan lebih lengkap dibandingkan dengan catatan Markus dan Lukas.  Kelengkapan catatan inilah yang membuat Tulisan Matius cocok digunakan sebagai model PMK.  Untuk tujuan ini, telaah paralelisme, penelusuran latar belakang dan budaya akan digunakan untuk menemukan keunikan presentasi Matius dibandingkan kedua Injil yang lain.  Berikutnya, presentasi Matius tentang perkataan dan tindakan Petrus kepada Yesus dan tanggapan Yesus terhadap perkataan dan tindakan itu akan dianalisa dengan menggunakan terapi cognitive behavioral.  Pada akhirnya, hasil telaah ini akan dilihat dari sisi Pentakosta sebagai sebuah model PMK.
KEBIJAKSANAAN SEBAGAI KARUNIA ROH KUDUS: MAKNA DAN BUAHNYA BAGI HIDUP SEORANG KRISTIANI
Authors: Maurenis Andreas
Published: November 2021

In the Scriptures it says 'Fear of God is the beginning of wisdom, but fools insult wisdom and discipline' (Proverbs 1: 7). People who live a good spiritual life will always be blessed with God's spirit of wisdom. Wisdom, which is one of the gifts of the Spirit, which is narrated in the Old and New Testaments, was always believed by Christians from the beginning even experienced by the Apostles at Pentecost as described in Acts. Indeed there is no human who deserves to claim himself as a wise person. But humans deserve the wisdom to produce good fruits in their social life especially in this context, their meaning and fruit for a Christian for himself and for the environment. Through the descriptive method of the text, the author tries to explore further, how the meaning and fruit for a Christian when his life is always shaded by the gift of the Holy Spirit.

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Dalam Kitab Suci dikatakan 'Takut akan Tuhan adalah awal kebijaksanaan, tetapi orang bodoh menghina hikmat dan didikan' (Amsal 1:7). Orang yang menjalankan hidup rohani yang baik akan selalu dikaruniai roh kebijaksanaan oleh Tuhan. Kebijaksanaan yang adalah salah satu karunia Roh, yang dinarasikan dalam Perjanjian Lama dan Perjanjian Baru, senantiasa diimani oleh orang Kristen sejak awal bahkan dialami oleh Para Rasul pada saat Pentakosta sebagaimana dilukiskan dalam Kisah Para Rasul. Memang tidak ada manusia yang layak mengklaim diri sebagai orang bijaksana. Tetapi manusia layak mendambakan kebijaksanaan untuk menghasilkan buah-buah yang baik dalam kehidupan sosialnya terutama dalam konteks ini, makna dan buahnya bagi seorang Kristiani bagi dirinya dan bagi lingkungan. Melalui metode deskriptif teks, penulis mencoba menelusuri lebih jauh, bagaimana makna dan buah bagi seorang Kristiani ketika hidupnya selalu dinaungi oleh karunia Roh Kudus.
Teologi Ibadah dan Spiritualitas Generasi Milenial
Authors: Rumbiak Amelia
Published: November 2021

Discourse about millennial generation and religious campaigns has become a worldwide spotlight in various sectors of life. Their existence is the best commodity in human history. In addition, technological advances through the internet are very binding on them so that the millennial generation is a group that grows and is familiar also dependent on gadget technology that masters social media as their new religion. The Church as a Treaty for implementing theology. Warnings and solutions to solutions from Marva J. Dawn and related liturgical figures also support the role of orthodoxy, orthopraxis, and orthopathy from Worship Theology to hold its missiological responsibilities reversed with the help of contemporary worship.

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Diskursus tentang generasi milenial dan persoalan keagamaan telah menjadi sorotan mendunia dalam berbagai sektor hidup.  Keberadaan angkatan mereka menjadi komoditi penting saat ini dan ke depannya.  Di samping itu, kemajuan teknologi lewat jaringan internet sangat mengikat mereka sehingga generasi milenial adalah sebuah kelompok yang tumbuh dan akrab serta tergantung dengan teknologi gadget yang menTuan-kan media sosial sebagai agama baru mereka.  Gereja sebagai konteks pelaksanaan Teologi Ibadah menghadapi kondisi ini.  Peringatan dan rekonstruksi solusi dari Marva J. Dawn dan tokoh-tokoh liturgis lainnya turut menunjukkan pentingnya peran ortodoksi, ortopraksis dan ortopati dari Teologi Ibadah untuk menunjukkan tanggung jawab misiologisnya yang bersifat upside-down melalui ibadah kekinian.
Implementasi Pembelajaran dalam Jaringan (Daring) Ramah Anak Abad 21
Authors: Febrianti Rika
Published: November 2021

Penelitian ini bertujuan untuk mendeskripsikan implementasi pembelajaran dalam jaringan ramah anak abad 21, Metode penelitian yang dipilih adalah deskriptif analisis, Subjek dalam penelitian ini yaitu kepala sekolah, guru, siswa, dan orang tua siswa dengan objek penelitian meliputi implementasi Program Sekolah Ramah Anak di sekolah. Teknik analisis data yang digunakan peneliti dalam pendekatan kualitatif adalah peneliti sendiri dibantu dengan beberapa alat untuk mengumpulkan data atau informasi yang bermanfaat untuk menjawab permasalahan, Hasil penelitian menunjukkan bahwa implementasi Program Sekolah Ramah Anak, meliputi (1) Komunikasi, adanya sosialisasi mengenai Program Sekolah Ramah Anak kepada seluruh pihak terkait seperti guru, siswa dan orang tua; (2) Sumber daya manusia dan sumber daya sarana prasarana yang mendukung Implementasi Program Sekolah Ramah Anak, pada abad 21 adanya sikap yang positif dan komitmen pihak sekolah untuk terus mengimplementasikan Program Sekolah Ramah Anak; Struktur Birokrasi, struktur organisasi Program Sekolah Anak disesuaikan dengan Struktur Organisasi Sekolah tertentu. Model Pembelajaran yang digunakan disesuaikan dengan membelajarkan subjek didik yang direncanakan atau didesain, dilaksanakan dan dievaluasi secara sistematis agar subjek didik dapat mencapai tujuan pembelajaran secara efektif dan efisien. Faktor pendukungnya adalah sumber daya manusia, sumber daya sarana prasana, dan sumber daya finansial yang mendukung dalam pengimplementasian Program Sekolah Ramah Anak dan faktor penghambatnya adalah pada kondisi lingkungan yang ada disekolah.
Pengembangan Buku Ajar Sistem Operasi Komputer Berbasis Graphical User Interface untuk Meningkatkan Kompetensi Mahasiswa Program Studi Pendidikan Teknologi Informasi
Authors: Imansyah M. Nur , Nurjannah Nurjannah
Published: November 2021

Penelitian ini bertujuan untuk Mengembangkan  perangkat pembelajaran berbasis buku ajar untuk  matakuliah Sistem Operasi. Penelitian ini adalah penelitian pengembangan dengan menggunakan  model 4-D yang terdiri dari 4 tahapan, yakni a) Define, b) Design, c) Develop, and Disemination. Penelitian ini akan dilaksanakan dalam kurun waktu 1 (satu) tahun dengan target khusus yang ingin dicapai, yaitu; 1) Buku Ajar Sistem Operasi Komputer Berbasis Graphical User Interface (GUI), 2) Luaran yang dihasilkan dalam penelitian ini adalah publikasi jurnal nasional terakreditasi, dan buku ajar ter-ISBN. Tahap Kesiapan Teknologi atau Tingkat Kesiapan Teknologi (TKT) adalah ukuran tingkat kesiapan teknologi yang diartikan sebagai indikator yang menunjukkan seberapa siap atau matang suatu teknologi agar dapat diterapkan. Teknologi yang diukur dalam penelitian ini adalah Buku ajar ber-ISBN, RPS, Worksheet, dan Soal tes dengan kategori indikator TKTnya adalah bidang Sosial Humaniora dan Pendidikan, Hasil penelitian menunjukan bahwa Perangkat pembelajaran yang dikembangkan berada pada kategori Layak untuk digunakan untuk meningkatkan kompetensi mahasiswa.
Dinamika Sosial Kelompok Tani (Studi Kasus Petani Bawang Merah Desa perangian Kecamatan Baraka Kabupaten Enrekang)
Authors: Suparman Suparman , Oruh Shermina , Agustang Andi
Published: November 2021

Penelitian ini bertujuan untuk mengetahui dinamika sosial kelompok tani Bawang Merah di Desa Perangian Kecamatan Baraka Kabupaten Enrekang. Jenis penelitian ini adalah penelitian sosial budaya dengan tipe kualitatif deskriptif dimana penelitian bertujuan untuk memberikan gambaran nyata, dan penjelasan tentang dinamika sosial kelompok petani Bawang Merah. Pengumpulan data dalam penelitian ini dilakukan dengan cara observasi, wawancara dan dokumentasi. Dalam penelitian ini responden di pilih langsung oleh peneliti melalui teknik purposive sampling sebanyak 10 orang wakil dari anggota kelompok tani yang menjadi informan di Desa Perangian Kecamatan Baraka Kabupaten Enrekang. Hasil penelitian menunjukkan bahwa terbentuknya kelompok tani di awali dengan adanya persepsi atau pandangan yang sama dalam memenuhi kebutuhan.  Dalam kelompok terjalin kerjasama antara sesama petani dalam mengahadapi permasalahan seperti pemenuhan kebutuhan sarana produksi dan hasil panen dalam bidang pertanian, sehingga dengan adanya kerja sama secara berkelompok berdampak pada peningkatan jumlah produksi yang baik. Terjadinya dinamika sosial kelompok petani dikarenakan karena adanya kepentingan bersama yang dapat mendorong sekelompok orang untuk membentuk sebuah kelompok dimana mereka bekerja sama dengan tekun, bersaing secara sehat untuk memperoleh hasil yang baik dalam bidang pertanian Bawang Merah.
Analisis Penggunaan Google Classroom sebagai Media Pembelajaran
Authors: Aunurrahman Aunurrahman , Rahman Mifta , Purwaningsih Dewi Ismu
Published: November 2021

Aplikasi Google Classroom sebagai platform pembelajaran daring belum banyak digunakan oleh dosen. Penelitian ini bertujuan untuk mengetahui persepsi dosen mengenai penggunaan Google Classroom dan dukungan layanan internet dan listrik yang tersedia. Bentuk penelitian ini adalah kualitatif deskriptif. Subjek penelitian adalah dosen yang mengajar pada program studi Pendidikan Bahasa Inggris IKIP-PGRI Pontianak. Teknik pengumpulan data dengan menggunakan kuesioner, yaitu kuesioner terbuka dan tertutup. Data yang telah terkumpul dianalisis dan disajikan dalam teks naratif dan tabel. Hasil penelitian menunjukkan bahwa Google Classsroom mudah untuk dipelajari dan digunakan serta terdapat fitur-fitur yang membantu dalam pelaksanaan langkah-langkah pembelajaran di kelas. Dukungan jaringan dan internet bagi bagi dosen untuk menggunakan aplikasi Google Classroom sangat baik. Penelitian selanjutnya diharapkan dapat menganalisis mahasiswa sebagai subjek penelitian sebagai bahan pertimbangan dalam penggunaan aplikasi sebagai media pembelajaran.
Strategi Humas Dalam Promosi Penerimaan Peserta Didik di MTs Ma’Arif NU Kemiri Purworejo
Authors: Isnaini Isnaini , Rohmah Evita
Published: November 2021

Hubungan masyarakat adalah komunikasi dua arah antara organisasi dengan publik secara timbal balik untuk mencapai tujuan bersama. Adanya persaingan antar lembaga pendidikan dalam mencari pelanggan pendidikan maka diperlukan strategi pemasaran. MTs Ma’arif NU Kemiri Purworejo merupakan lembaga pendidikan yang mengalami peningkatan jumlah peserta didik dalam dua tahun terakhir. Penulis akan menganalisis strategi humas yang diterapkan dalam promosi penerimaan peserta didik di MTs Ma’arif NU Kemiri Purworejo. Metode yang digunakan dalam penelitian ini adalah deskriptif kualitatif. Teknik pengumpulan data dalam penelitian ini dengan cara wawancara, observasi dan telaah dokumen. Analisis data yang digunakan dalam penelitian ini adalah metode kualitatif dengan kerangka berfikir secara deduktif. Setelah melakukan analisis terhadap strategi humas dalam promosi penerimaan peserta didik yang diterapkan di MTs Ma’arif NU Kemiri Purworejo menunjukan bahwa strategi humas dalam promosi penerimaan peserta didik di MTs Ma’arif NU Kemiri Purworejo secara umum telah terlaksana dengan baik meskipun terdapat beberapa kendala tetapi telah dilakukan beberapa upaya untuk mengatasi kendala tersebut.
Panggilan Orang Percaya dalam Berapologetika
Authors: Mukti Guntur Hari
Published: November 2021

The calling of faith as a believer has a lot of emphasis on being a witness for many people, so that through life's testimony many people become attracted to and believe in the Savior of the Lord Jesus Christ. The calling of apologetics in the life of faith is forgotten and as if it is only a part of those who get the title "Servant of God". The calling of Believers in Apologetics is a general calling as well as a call to be witnesses for Christ, because many around us are people who hold us accountable for the Christian faith, therefore through this writing all believers can be made aware that apologetics is a calling that is glorious in the life of the believer. This research is structured using descriptive qualitative methods through literature study and conclusions are generally drawn based on deductive methods to generate understanding as a believer in his calling to defend the faith.Panggilan hidup beriman sebagai orang percaya banyak bertitik tumpu pada menjadi saksi bagi banyak orang, sehingga melalui kesaksian hidup banyak orang menjadi tertarik dan percaya kepada Tuhan Yesus Kristus Juru Selamat. Panggilan berapologetika dalam hidup beriman terlupakan dan seolah itu hanya menjadi bagian dari mereka yang mendapat gelar “Hamba Tuhan”. Panggilan Orang Percaya dalam Berapologetika adalah panggilan yang umum sebagaimana panggilan untuk menjadi saksi bagi Kristus, sebab banyak disekitar kita orang yang meminta pertanggunganjawaban iman Kristen yang kita percaya, oleh sebab itu melalui tulisan ini semua orang percaya kiranya bisa disadarkan bahwa berapologetika itu adalah suatu panggilan yang mulia dalam hidup orang percaya. Penelitian ini disusun menggunakan metode kualitatif deskriptif melalui studi Literatur dan kesimpulan secara umum diambil berdasarkan metode deduktif untuk melahirkan pemahaman sebagai orang percaya dalam panggilannya untuk membela iman.
Numerical Simulation for Unsteady Anisotropic-Diffusion Convection Equation of Spatially Variable Coefficients and Incompressible Flow
Authors: Azis Moh.Ivan
Published: November 2021

The anisotropic-diffusion convection equation of spatiallyvariable coefficients which is relevant for functionally graded mediais discussed in this paper to find numerical solutions by using acombined Laplace transform and boundary element method. The variablecoefficients equation is transformed to a constant coefficients equation.The constant coefficients equation is then Laplace-transformed sothat the time variable vanishes. The Laplace-transformed equationis consequently written in a pure boundary integral equation whichinvolves a time-free fundamental solution. The boundary integral equationis therefore employed to find numerical solutions using a standardboundary element method. Finally the results obtained are inverselytransformed numerically using the Stehfest formula to get solutionsin the time variable. The combined Laplace transform and boundaryelement method is easy to be implemented, efficient and accurate forsolving unsteady problems of anisotropic functionally graded mediagoverned by the diffusion convection equation.
CONCEPTION OF A “SILENT” MORTAR PROJECTILE. PART II – CALCULATIONS OF INTERNAL BALLISTIC PARAMETERS
Authors: Magier Mariusz , Gutowski Marcin
Published: November 2021

The paper presents a theoretical description of computer codes for solution of the major question of internal ballistics for a “silent” mortar projectile. The computer codes proved their usefulness by providing the characteristics of a shot for each correct configuration of the projectile and eliminat-ing automatically the solutions not complying with the accepted specifications. Additionally, the structure of the code facilitates the modifications of a system of equations and parameters of the model to assisting a designing process of other systems of firearms.
Evaluation of Machine Learning Models for Estimating Sales in Physical Retail
Authors: Alves Geovanne O. , Fonsêca Jorge C. B. , Maciel Alexandre M. A.
Published: November 2021

The amount of sales in a store is a strong indicator that contributes to managers' decision making. In physical retail, unlike e-commerce, it is more difficult to collect sales and customer behavior metrics because it depends on great sensing and integration between systems. In a shopping mall scenario, we use real WiFi data, People Flow and Sales create a dataset. In this article we propose an evaluation of machine learning models with the objective of estimating the next hour sales in Low, Medium and High, thus providing a tool to assist in decision making. We use the PyCaret library to perform the training of the 13 compared algorithms. The F1-score metric was used to evaluate the models. The Gradient Booster Classifier was the model that got the best result with a score of 84.75%. Among the estimated classes, the High class showed the greatest error in the confusion matrix, reaching 60%, possibly a reflection of the low amount of records in the high class.
Enriching datasets for sentiment analysis in tweets with instance selection
Authors: Guimarães Eliseu , Vianna Daniela , Paes Aline , Plastino Alexandre
Published: November 2021

Sentiment analysis in tweets is a research field of great importance, mainly due to the popularity of Twitter. However, collecting and annotating tweets is an expensive and time-consuming task, making that some domains have only a limited set of labeled data. A promising strategy to handle this issue is to leverage labeled domains rich in data to select instances that enrich target datasets. This paper proposes different strategies for selecting instances from a set of labeled source datasets in order to improve the performance of classifiers trained only with the target dataset. Different approaches are proposed, including similarity metrics and variations in the number of selected instances. The results show that the size of the training set plays an essential role in the predictive capacity of the classifier. Furthermore, the results point out the importance of taking into account diversity criteria when selecting the instances.
Combining Data Mining Techniques to Analyse Factors Associated with Allocation of Socioeconomic Resources at IFMG
Authors: Melo Eduardo , Tuler Elisa , Rocha Leonardo
Published: November 2021

The granting of socioeconomic assistance to students from Federal Education Institutions is one of the ways found to provide finantial support during their studies, focusing primarily on those who are more socially vulnerable. Institutions carry out selection processes to identify students with a profile of demand and appropriately distribute the grants according to the budget available for this purpose. This article applied Data Mining techniques to a set of information from students who applied to receive scholarships at IFMG - Campus Bambuí, seeking to identify the attributes associated with the distribution of benefits and analyzing the adequacy of the current indicator used by the institution to classify the level of social vulnerability of students. The proposed methodology involved combining different machine learning algorithms, such as data classification and feature selection techniques. In addition to identifying the degree of importance of each attribute in the constructed model, the differential of this article is to present well-founded suggestions for new attributes that could be able to improve the index used by the institution and, consequently, optimize the workload of those involved with the analysis of selective processes. The composition of the institution's index with five new attributes resulted in a gain of around 10% in rating performance.
Rechtliche Rahmenbedingungen einer Weiterentwicklung der Unabhängigen Patientenberatung (UPD)
Authors: Gassner Ulrich M. , Wollenschläger Ferdinand
Published: November 2021

This work is a slightly revised version of a legal opinion prepared in 2020 on behalf of the office of the Federal Government Commissioner for Patients' Affairs. First, the legislative history is presented and the current reform discourse is outlined. This is followed by a detailed analysis and comparative evaluation of feasible legal options for the permanent guarantee of neutral and independent patient counselling. In this context, issues of legislative power as well as the respective legal form including their effects on tax, public procurement and company law are examined in detail.
Ökologische Aspekte im öffentlich-rechtlichen Beschaffungswesen
Authors: Steengrafe Felix
Published: November 2021

The awarding of public contracts is of considerable economic importance and for this reason can be used to promote environmental concerns. The present work examines whether environmental criteria may be taken into account in the context of public procurement. To answer this question, the Government Procurement Agreement and the UNICTRAL Model Law on Public Procurement are considered at the level of international law. In European law, the primary as well as the relevant secondary law requirements and, in German law, the Cartel and Budget Procurement Law are assessed. This analysis also includes the interactions between the three levels.
Dotazník interpersonálních hodnot (SIPO) – Recenze metody
Authors: Štýber Martin
Published: November 2021

Dotazník interpersonálních hodnot SIPO je snadným nástrojem, jehož administrace je velmi krátká a vyhodnocování pomocí šablon je jednoduché. Na druhou stranu manuál k dotazníku SIPO neposkytuje skoro žádné údaje ke kvalitnímu zhodnocení jeho psychometrických vlastností. Hlavním nedostatkem jsou chybějící důkazy validity a reliability. Dalším problémem jsou také nedostatečné informace k používaným normám, které mohou být pro účel testování neadekvátní nebo zastaralé. Pokud se psychometrickými vlastnostmi dotazníku SIPO Mikšík někdy zabýval, rozhodně nejsou tato data snadno dostupná běžnému uživateli testu. Vzhledem ke všem těmto nedostatkům nelze doporučit dotazník SIPO k praktickému používání. Za současného stavu, lze dotazník SIPO použít maximálně k výzkumným účelům, přičemž výzkumník by měl být obezřetný ke všem slabým místům metody.
Multimotivační mřížka – Recenze metody
Authors: Tichá Martina
Published: November 2021

Multimotivační mřížka má zajímavý potenciál, výhodou je například nízké riziko zfalšovatelnosti výsledků, dále rychlá a snadná administrace i vyhodnocení a také malý vliv examinátora na skórování (vysoká shoda posuzovatelů), což nebývá u projektivních metod standardem. Z pohledu testované osoby je výhodou také atraktivita podnětového materiálu a nízké nároky na kognitivní schopnosti. Nicméně metoda nedosahuje standardů psychologického testování v otázkách validity a reliability a její poslední vydání z roku 2000 nereflektuje závěry výzkumů z posledních let. Navíc ji nelze kvůli chybějící české adaptaci a odpovídajícím normám využít v tuzemském kontextu. Ve svojí současné podobě, kterou je pouze český překlad, je dle mého názoru pro české psychology akceptovatelná maximálně v rámci diagnostického rozhovoru, kdy reakce probanda na obrazové podněty mohou být doplněny otázkami examinátora, a mohou tak doplnit celkový klinický obraz v rámci individuálního poradenství.
L’«Arqueta catalana» de la Biblioteca Reial
Authors: Garolera Narcís
Published: November 2021

L’article relaciona els títols dels llibres d’escriptors catalans conservats a l’Arqueta catalana de la Biblioteca Reial del Palacio de Oriente, de Madrid. S’hi transcriuen les dedicatòries dels autors —en català, la major part d’elles—, entre els quals destaca, pel nombre de volums, Jacint Verdaguer. La destinatària habitual de les obres és la reina regent Maria Cristina, un retrat de la qual presideix l’esmentada arqueta.
As primeiras postas en escena de Valle-Inclán en galego (2017-2018)
Authors: Landín Martínez Pablo
Published: November 2021

Pasados oitenta anos da morte de Valle-Inclán (1866-1936), as súas obras pasan a ser de dominio público e algunhas delas represéntanse por primeira vez en galego, lingua vetada polos seus descendentes. Neste artigo analízase as súas primeiras obras representadas nesta lingua durante os anos 2017 e 2018: A cabeza do dragón, Martes de Carnaval e Divinas palabras revolution.
Legal issues of implementation of the principle of publicity of the real estate register in the People’s Republic of China
Authors: Chen Shuxiu
Published: November 2021

The principle of publicity is one of the basic principles of real right and one of the important conditions for implementation of the principle of public credibility of the real estate title registration. During operation of China’s Law on Real Rights, a range of problems has emerged with the provisions in this part in doctrine and practice, for example: nature of the registration authority and its impact upon operation of the principle of public credibility of the real estate register, ambiguity of the category of interested person, method of confirmation of interest of the applicant, etc. Due to time constraint, these issues have not been eliminated as a result of recent enactment of the Civil Code of the People's Republic of China. There are plenty of disputes within the Chinese civil law doctrine. This article analyses the evolution of the legislation in force regarding the principle of publicity of the real estate register and state registration in PRC, as well as outlines the array of issues. The goal of this research lies in determination and assessment of significant flaws in the current legislation. The novelty consists in critical analysis of the existing problems and gaps in current legislation of the People's Republic of China, as well as the author's position based on the analysis of China’s social situation. The acquired results reveal the need for the development of the unified scientifically grounded legislation. The author believes that this work would contribute to development of the next stage of PRC legislation in terms of real estate title registration, lay groundwork for implementation of the principle of public credibility of the real estate register, as well as familiarize Russian audience with China’s experience on the matter.
How Internet of Things responds to the COVID-19 pandemic
Authors: Ghaleb Taher A. , Bin-Thalab Rasha A. , Alselwi Ghadir AbdulhakimAbdo Abdullah
Published: November 2021

The cornovirus disease (COVID-19) pandemic has had a severe impact on our daily lives. As a result, there has been an increasing demand for technological solutions to overcome such challenges. The Internet of Things (IoT) has recently emerged to improve many aspects of human’s day-to-day activities and routines. IoT makes it easier to follow the safety guidelines and precautions provided by the World Health Organization (WHO). Prior reports have shown that the world nowadays may need more IoT facilities than ever before. However, little is known about the reaction of the IoT community towards defeating the COVID-19 pandemic, technologies being used, solutions being provided, and how our societies perceive the IoT means available to them. In this paper, we conduct an empirical study to investigate the IoT response to the COVID-19 pandemic. In particular, we study the characteristics of the IoT solutions hosted on a large online IoT community (i.e., Hackster.io) throughout the year of 2020. The study: (a) explores the proportion, types, and nations of IoT solutions/engineers that contributed to defeating COVID-19, (b) characterizes the complexity of COVID-19 IoT solutions, and (c) identifies how IoT solutions are perceived by the surrounding community. Our results indicate that IoT engineers have been actively working towards providing solutions to help their societies, especially in the most affected nations. Our findings (i) provide insights into the aspects IoT practitioners need to pay more attention to when developing IoT solutions for COVID-19 and to (ii) outlines the common IoT solutions and technologies available to humans to deal with the current challenges.
3D Printed MXene Aerogels with Truly 3D Macrostructure and Highly Engineered Microstructure for Enhanced Electrical and Electrochemical Performance
Authors: Tetik Halil , Orangi Jafar , Yang Guang , Zhao Keren , Mujib Shakir Bin , Singh Gurpreet , Beidaghi Majid , Lin Dong
Published: November 2021

Assembling 2D materials such as MXenes into functional 3D aerogels using 3D printing technologies gains attention due to simplicity of fabrication, customized geometry and physical properties, and improved performance. Also, the establishment of straightforward electrode fabrication methods with the aim to hinder the restack and/or aggregation of electrode materials, which limits the performance of the electrode, is of great significant. In this study, unidirectional freeze casting and inkjet‐based 3D printing are combined to fabricate macroscopic porous aerogels with vertically aligned Ti3C2Tx sheets. The fabrication method is developed to easily control the aerogel microstructure and alignment of the MXene sheets. The aerogels show excellent electromechanical performance so that they can withstand almost 50% compression before recovering to the original shape and maintain their electrical conductivities during continuous compression cycles. To enhance the electrochemical performance, an inkjet‐printed MXene current collector layer is added with horizontally aligned MXene sheets. This combines the superior electrical conductivity of the current collector layer with the improved ionic diffusion provided by the porous electrode. The cells fabricated with horizontal MXene sheets alignment as current collector with subsequent vertical MXene sheets alignment layers show the best electrochemical performance with thickness‐independent capacitive behavior.
Dimensional Design and Core–Shell Engineering of Nanomaterials for Electromagnetic Wave Absorption
Authors: Wu Zhengchen , Cheng Han‐Wen , Jin Chen , Yang Bintong , Xu Chunyang , Pei Ke , Zhang Huibin , Yang Ziqi , Che Renchao
Published: November 2021

Electromagnetic (EM) wave absorption materials possess exceptionally high EM energy loss efficiency. With vigorous developments in nanotechnology, such materials have exhibited numerous advanced EM functions, including radiation prevention and antiradar stealth. To achieve improved EM performance and multifunctionality, the elaborate control of microstructures has become an attractive research direction. By designing them as core–shell structures with different dimensions, the combined effects, such as interfacial polarization, conduction networks, magnetic coupling, and magnetic–dielectric synergy, can significantly enhance the EM wave absorption performance. Herein, the advances in low‐dimensional core–shell EM wave absorption materials are outlined and a selection of the most remarkable examples is discussed. The derived key information regarding dimensional design, structural engineering, performance, and structure–function relationship are comprehensively summarized. Moreover, the investigation of the cutting‐edge mechanisms is given particular attention. Additional applications, such as oxidation resistance and self‐cleaning functions, are also introduced. Finally, insight into what may be expected from this rapidly expanding field and future challenges are presented.
Atomic‐Scale Observations of the Manganese Porphyrin/Au Catalyst Interface Under the Electrocatalytic Process Revealed with Electrochemical Scanning Tunneling Microscopy
Authors: Kim Yongman , Jeong Yongchan , Kim YoungJae , Park Jeong Young
Published: November 2021

As a promising molecular catalyst for oxygen evolution reaction (OER), metalloporphyrin is a good model system that is extensively studied. The catalytic efficiency of metalloporphyrin can be improved with deeper insight into its complex issues, such as structural stability and catalytic activity. Using in situ electrochemical scanning tunneling microscopy (EC‐STM) and X‐ray photoelectron spectroscopy, the morphological evolution of the manganese porphyrin/Au(111) interface affected by the electrocatalytic reaction is revealed. In alkaline solution, the catalytic performance is dramatically enhanced after the first potential sweep, directly related to the formation of the MnOx‐porphyrin complexes, driven by an irreversible oxidation–reduction process. These newly formed catalytically active materials exhibit synergistic effects with the Au interface. In situ EC‐STM imaging provides the molecular evidence for the formation of the real active metalloporphyrin‐based catalyst, showing the complicated interrelation of the morphology, structure, catalytic activity, and electrolyte in OER catalysts.
Pitfalls in Electrochemical Liquid Cell Transmission Electron Microscopy for Dendrite Observation
Authors: Zhang Xiuli , Liu Weiyan , Chen Zhaoxi , Huang Yifan , Liu Wei , Yu Yi
Published: November 2021

The growth of dendrites on the electrodes during charge–discharge cycles can lead to short‐circuit and potential ignition, which limit the capacity and application of the rechargeable batteries. With the development of in situ electrochemical liquid cell transmission electron microscopy, the growth process of metallic dendrites can be observed in real‐time. However, there remains a great challenge to operate the electrochemical liquid cell experiments successfully and repetitively. Herein, the lithium‐ion battery electrolyte system and the other electrolyte system of silver nitrate with sodium nitrate aqueous solution are adopted in our experiments to demonstrate the problems in conducting electrochemical liquid cell experiments. Influence factors are summarized, including the tube residual, cleanliness of electrodes, bubbles in the liquid cell, and the stability of the electrochemical system. All these aspects affect the electrochemical liquid cell experiments, and understanding these influencing factors is beneficial to improve the success rate of experiments. This work may offer guidance for the wide application of in situ electrochemical liquid cell transmission electron microscopy in observing the growth of dendrites in batteries.
Systematic evaluation of bromine‐free flame‐retardant systems in acrylonitrile‐butadiene‐styrene
Authors: Bachinger Angelika , Sandinge Anna , Lindqvist Karin M. , Strid Anna , Gong Guan
Published: November 2021

A systematic investigation of phosphorus‐based flame‐retardant (PFR) systems in acrylonitrile‐butadiene‐styrene (ABS) is presented. The effect of various PFRs, combinations thereof and influence of different synergists is studied in terms of fire and mechanical performance, as well as toxicity of resulting ABS. Sustainable flame‐retardant systems with a promising effect on the fire‐retardant properties of ABS are identified: A combination of aluminum diethylphosphinate and ammonium polyphosphate is shown to exhibit superior flame‐retardant properties in ABS compared to other studied PFRs and PFR combinations. Among a variety of studied potential synergists for this system, a grade of expandable graphite with a high‐initiation temperature and a molybdenum‐based smoke suppressant show the most promising effect, leading to a significant reduction of the peak heat release rate as well as the smoke production rate. Compared to current state‐of‐the‐art brominated flame‐retardant for ABS, the identified flame‐retardant systems reduce the maximum smoke production rate by 70% and the peak heat release rate by 40%. However, a significant reduction of the impact performance of the resulting ABS is identified, which requires further investigation.
Preparation and characterization of a nontoxic cross‐linked lipase aggregate by using sodium tripolyphosphate and chitosan
Authors: Yan Hongde , Shi Bobo , Ding Jing , Zhu Hanxiao , Li Xinchen , Qian Junqing
Published: November 2021

Cross‐linked enzyme aggregates (CLEAs) have the advantages of high‐enzyme activity and stability, and have an application potential in food and feed processing. In order to address the food and feed safety of CLEAs and have ideal enzymatic properties, a new design of CLEAs of lipase from Aspergillus niger is developed by using sodium tripolyphosphate (TPP) as a cross‐linking agent and chitosan as an auxiliary agent. The enzyme activity recovery of the developed CLEAs reaches 126%. The half‐life of the CLEAs is 11.4‐fold higher than that of free enzyme at the optimum reaction temperature of CLEAs. The surface structure of the CLEAs reveals cluster and porous structure. The variations of the secondary structures of the CLEAs indicate an increase of α‐helix and decrease of β‐sheet, β‐turn, and random coil. The adding of chitosan is beneficial to enzyme activity recovery and thermal stability of the CLEAs. TPP and chitosan are safe and nontoxic, and the CLEAs prepared with TPP and chitosan is suitable for the food and feed industries.
The design and application of IRobotQ3D for simulating robotics experiments in K‐12 education
Authors: Zhan Zehui , Zhong Baichang , Shi Xiangyang , Si Qiuji , Zheng Jijun
Published: November 2021

This study developed a robotic online simulation platform (i.e., IRobotQ3D) for K‐12 education, which realized several main fundamental functions, such as the three‐dimensional (3D) structure design of the robot, a combination of components, graphical programming, and motion simulation. Based on the PhysX physics engine, this system regarded the robot and interactive environment as a rigid body and simplified the robot dynamics, so that ordinary users don't have to care about the complex dynamic problems. In particular, graphical and modular programming modes were adopted, which greatly facilitates the development of robotic learning for K‐12 students. Students can use the IRobotQ3D software on the computer to build virtual robots and simulation environments, write and debug programs to run the operation of physical robots in the simulation window. The technical route of building simulation design function for each physical robot in a 3D environment was determined, and the four‐stage iteration design process was described in detail. Then the steps of applying IRobotQ3D in robotics education were introduced and an experiment was conducted. Forty‐four first‐year junior high school students participated in the experiment. Results indicated that IRobotQ3D plays a positive role in improving students' programming ability, learning attitude, and learning engagement, and demonstrates great educational potential. Finally, the educational value of IRobotQ3D was discussed.