bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Case Study of Transporting Urysohn’s Lemma from Topology via Open Sets into Topology via Neighborhoods
Authors: Coghetto Roland 
Published: April 2021

Summary
Józef Białas and Yatsuka Nakamura has completely formalized a proof of Urysohn’s lemma in the article [4], in the context of a topological space defined via open sets. In the Mizar Mathematical Library (MML), the topological space is defined in this way by Beata Padlewska and Agata Darmochwał in the article [18]. In [7] the topological space is defined via neighborhoods. It is well known that these definitions are equivalent [5, 6].
In the definitions, an abstract structure (i.e. the article [17, STRUCT 0] and its descendants, all of them directly or indirectly using Mizar structures [3]) have been used (see [10], [9]). The first topological definition is based on the Mizar structure TopStruct and the topological space defined via neighborhoods with the Mizar structure: FMT Space Str. To emphasize the notion of a neighborhood, we rename FMT TopSpace (topology from neighbourhoods) to NTopSpace (a neighborhood topological space).
Using Mizar [2], we transport the Urysohn’s lemma from TopSpace to NTop-Space.
In some cases, Mizar allows certain techniques for transporting proofs, definitions or theorems. Generally speaking, there is no such automatic translating.
In Coq, Isabelle/HOL or homotopy type theory transport is also studied, sometimes with a more systematic aim [14], [21], [11], [12], [8], [19]. In [1], two co-existing Isabelle libraries: Isabelle/HOL and Isabelle/Mizar, have been aligned in a single foundation in the Isabelle logical framework.
In the MML, they have been used since the beginning: reconsider, registration, cluster, others were later implemented [13]: identify.
In some proofs, it is possible to define particular functors between different structures, mainly useful when results are already obtained in a given structure. This technique is used, for example, in [15] to define two functors MXR2MXF and MXF2MXF between Matrix of REAL and Matrix of F-Real and to transport the definition of the addition from one structure to the other: [...] A + B -> Matrix of REAL equals MXF2MXR ((MXR2MXF A) + (MXR2MXF B)) [...].
In this paper, first we align the necessary topological concepts. For the formalization, we were inspired by the works of Claude Wagschal [20]. It allows us to transport more naturally the Urysohn’s lemma ([4, URYSOHN3:20]) to the topological space defined via neighborhoods.
Nakasho and Shidama have developed a solution to explore the notions introduced in various ways https://mimosa-project.github.io/mmlreference/current/ [16].
The definitions can be directly linked in the HTML version of the Mizar library (example: Urysohn’s lemma http://mizar.org/version/current/html/urysohn3.html#T20).
Exploring mental models of the right to informational self-determination of office workers in Germany
Authors: Tolsdorf Jan , Dehling Florian , Reinhardt Delphine , Iacono Luigi Lo 
Published: April 2021

AbstractApplied privacy research has so far focused mainly on consumer relations in private life. Privacy in the context of employment relationships is less well studied, although it is subject to the same legal privacy framework in Europe. The European General Data Protection Regulation (GDPR) has strengthened employees’ right to privacy by obliging that employers provide transparency and intervention mechanisms. For such mechanisms to be effective, employees must have a sound understanding of their functions and value. We explored possible boundaries by conducting a semi-structured interview study with 27 office workers in Germany and elicited mental models of the right to informational self-determination, which is the European proxy for the right to privacy. We provide insights into (1) perceptions of different categories of data, (2) familiarity with the legal framework regarding expectations for privacy controls, and (3) awareness of data processing, data flow, safeguards, and threat models. We found that legal terms often used in privacy policies used to describe categories of data are misleading. We further identified three groups of mental models that differ in their privacy control requirements and willingness to accept restrictions on their privacy rights. We also found ignorance about actual data flow, processing, and safeguard implementation. Participants’ mindsets were shaped by their faith in organizational and technical measures to protect privacy. Employers and developers may benefit from our contributions by understanding the types of privacy controls desired by office workers and the challenges to be considered when conceptualizing and designing usable privacy protections in the workplace.
The CNAME of the Game: Large-scale Analysis of DNS-based Tracking Evasion
Authors: Dimova Yana , Acar Gunes , Olejnik Lukasz , Joosen Wouter , Van Goethem Tom 
Published: April 2021

Abstract
Online tracking is a whack-a-mole game between trackers who build and monetize behavioral user profiles through intrusive data collection, and anti-tracking mechanisms that are deployed as browser extensions, DNS resolvers, or built-in to the browser. As a response to pervasive and opaque online tracking, more and more users adopt anti-tracking measures to preserve their privacy. Consequently, as the information that trackers can gather on users is being curbed, some trackers are looking for ways to evade these protections. In this paper we report on a large-scale longitudinal evaluation of an anti-tracking evasion scheme that leverages CNAME records to include tracker resources in a same-site context, which effectively bypasses anti-tracking measures that rely on fixed hostname-based block lists. Using historical HTTP Archive data we find that this tracking scheme is rapidly gaining traction, especially among high-traffic websites. Furthermore, we report on several privacy and security issues inherent to the technical setup of CNAME-based tracking that we detected through a combination of automated and manual analyses. We find that some trackers are using the technique against the Safari browser, which is known to include strict anti-tracking configurations. Our findings show that websites using CNAME trackers must take extra precautions to avoid leaking sensitive information to third parties.
A First Look at Private Communications in Video Games using Visual Features
Authors: Wajid Abdul , Kamal Nasir , Sharjeel Muhammad , Sheikh Raaez Muhammad , Wasim Huzaifah Bin , Ali Muhammad Hashir , Hussain Wajahat , Ali Syed Taha , Anjum Latif 
Published: April 2021

AbstractInternet privacy is threatened by expanding use of automated mass surveillance and censorship techniques. In this paper, we investigate the feasibility of using video games and virtual environments to evade automated detection, namely by manipulating elements in the game environment to compose and share text with other users. This technique exploits the fact that text spotting in the wild is a challenging problem in computer vision. To test our hypothesis, we compile a novel dataset of text generated in popular video games and analyze it using state-of-the-art text spotting tools. Detection rates are negligible in most cases. Retraining these classifiers specifically for game environments leads to dramatic improvements in some cases (ranging from 6% to 65% in most instances) but overall effectiveness is limited: the costs and benefits of retraining vary significantly for different games, this strategy does not generalize, and, interestingly, users can still evade detection using novel configurations and arbitrary-shaped text. Communicating in this way yields very low bitrates (0.3-1.1 bits/s) which is suited for very short messages, and applications such as microblogging and bootstrapping off-game communications (dialing). This technique does not require technical sophistication and runs easily on existing games infrastructure without modification. We also discuss potential strategies to address efficiency, bandwidth, and security constraints of video game environments. To the best of our knowledge, this is the first such exploration of video games and virtual environments from a computer vision perspective.
Close-Range Photogrammetry for Documenting and Enhancing Thamudic Rock Art and Epigraphy
Authors: Normand Stephanie 
Published: April 2021

The eastern frontier of Roman Empire was ethnically and culturally diverse. Yet despite the abundance of evidence for such diversity, we know relatively little about the peoples who populated the Roman frontier. A good case in point is the Thamudic people of the Hisma desert in modern day southern Jordan. The written historical record provides only two references from the classical period, along with a handful from the later Islamic period, all of which are contradictory. What is more, the sources give virtually no hints about their way of life. The archeological record is not much more revealing. In fact, the only tangible traces we have of these people are the vast numbers of inscriptions and petroglyphs they left behind. These inscriptions, however, can often be difficult to study due to centuries of weathering and vandalism, both ancient and modern. A way to document and enhance this material in a quick and accurate way in harsh, remote environments is urgently needed. Close-range photogrammetry with digital SLR cameras provides the ideal solution. Three-dimensional data from photogrammetry is quick to capture in the field, extremely accurate and requires nothing other than a consumer camera and software for post-processing. Using software adapted from the mining industry we can use a process known as depth-mapping to enhance even extremely shallow incisions and to reveal texts that have been damaged, or even intentionally erased. By doing so, we can gain a better understanding of the lives of these people on the Roman frontier.
Antinous: The Pederastic to the Divine
Authors: Wong Desmond 
Published: April 2021

No face is more recognized as the ideal of ancient male beauty than Antinous and yet little is known about his life. Scholars have used his relationship with the Emperor Hadrian as evidence for their own means. This relationship has gone from a sordid and scandalous affair to purely platonic and educational, depending on the personal orientations of the scholars and the cultural trends of their age. The controversy about Antinous began immediately: the establishment of his cult after his death was mocked by contemporaries as an exaggeration and inappropriate mourning. Soon after it was fuel for Christian critics about the arbitrary nature of pagan deities. However, in Hadrian’s lifetime the cult became an established sect of the Imperial Religion, spreading throughout the Eastern provinces. Why did this cult function successfully in the East, while being scorned in the West? My paper will explore the reasons for the different response. I will argue that the pederastic relationship had been a long established tradition within the East but mocked as inappropriate in the West, at least in a public setting. In Greek culture there were numerous cases of such relationships in myth. The contemporaries who criticized the relationship of Hadrian and Antinous, and especially his cult, were reacting against a trend of Hellenization of Roman culture. This had been a debated issue since the Roman conquest of the East, and many times before, the champions of Roman tradition had depicted the spread of Greek ways as the triumph of moral corruption.
PENGEMBANGAN APLIKASI ANDROID PENGENALAN RAGAM PROFESI BERDASARKAN RUMPUN ILMU TERAPAN
Authors: Noor Khilda Wulidatin , Hidayat Dede Rahmat , Hanim Wirda 
Published: April 2021

Tujuan penelitian ini untuk mengembangkan aplikasi android pengenalan ragam profesi yang dapat dikenalkan dengan mengelompokkan profesi berdasarkan rumpun ilmu terapan yang ada di Indonesia sesuai dengan Undang-Undang Republik Indonesia Nomor 12 Tahun 2012 Tentang Pendidikan Tinggi Pasal 10 ayat (2) yang berbunyi: “....(a) rumpun ilmu agama; (b) rumpun ilmu humaniora; (c) rumpun ilmu sosial; (d) rumpun ilmu alam; (e) rumpun ilmu formal; dan (f) rumpun ilmu terapan, dengan aplikasi android. Ragam profesi adalah suatu kegiatan yang dilakukan seseorang untuk menafkahi diri dan keluargannya dimana profesi tersebut diatur oleh etika profesi dimana etika profesi tersebut hanya berlaku sesama profesi tersebut. Selain itu pengenalan ragam profesi sejak usia Sekolah Dasar merupakan pilihan strategis dalam mempersiapkan generasi masa depan, ragam profesi sangat dibutuhkan oleh siswa sejak usia Sekolah Dasar, sebagai referensi cita-cita. Mengikuti perkembangan zaman, pengenalan ragam profesi dapat diterapkan dalam teknologi. Metode yang digunakan adalah <em>Research and Development</em>, yang mengembangkan aplikasi android berdasarkan rumpun ilmu terapan. Hasil yang akan diperoleh dari penelitian ini berupa produk-produk yaitu berupa permainan <em>si-onet</em> ragam profesi, dalam bidang karir. Jenis permainan <em>arcade puzzle </em>berbentuk 3 dimensi yang mempunyai konsep sederhana namun tetap menarik untuk dimainkan. Diharapkan agar siswa dapat mengenal dan memilih gambaran terkait kehidupan yang akan datang.
Penerapan Snowballing untuk Meningkatkan Hasil Belajar Siswa Kelas IXF SMPN 9 Blitar pada Materi Pola Bilangan
Authors: Srisusilaningtyas Dijah Rumanti 
Published: April 2021

Kurikulum sebagai salah satu substansi pendidikan perlu didesentralisasikan terutama dalam pengembangan silabus dan pelaksanaannya yang disesuaikan dengan tuntutan kebutuhan siswa, keadaan sekolah, dan kondisi sekolah atau daerah. Dengan demikian sekolah atau daerah memiliki cukup kewenangan untuk merancang dan menentukan materi pokok/pembelajaran, kegiatan pembelajaran, dan penilaian hasil pembelajaran. Sesuai dengan tujuan dari penelitian ini yaitu memperbaiki praktek pembelajaran dengan meningkatkan kualitas proses pembelajaran menuju lebih baik dengan metode snowballing. Rancangan PTK (Penelitian Tindakan Kelas) yang telah lazim digunakan, penelitian dirancang dalam 2 siklus dengan tiap siklus terdiri dari 4 tahap. Siklus I meliputi Tahap Perencanaan dan Tahap Pelaksanaan. Pada siklus 2, prosesnya sama dengan siklus 1, hanya ada perbaikan-perbaikan dari siklus sebelumnya yaitu guru mengoptimalkan bimbingan diskusi kelompok dan guru lebih mengaktifkan siswa dalam pelaksanaan diskusi kelas. Subyek penelitian adalah siswa SMPN 9 Blitar kelas 9F Semester 2 Tahun 2015/2016. Jumlah siswa 33 terdiri dari laki-laki 19 siswa dan perempuan 14 siswa. Berdasarkan data nilai pada siklus I dan siklus II terlihat tingkat penghargaan kelompok pada siklus I kelompok atas mendapat 59,8 %, kriteria (Kurang) dan pada siklus II kelompok atas meningkat menjadi 80,2 % (Baik). Maka dapat dikatakan dengan metode pembelajaran Snowballing siswa sudah mengalami perubahan peningkatan hasil belajar dari tingkat D (Kurang) berubah meningkat pada tingkat B (Baik). Untuk itu perlu adanya upaya lagi yang lebih optimal untuk mencapai hasil pembelajaran tingkat A (Sangat Baik)..
Perancangan Aplikasi Pemesanan Makanan dan Minuman Berbasis ERP (Open ERP) di Cafe Cozy
Authors: Nugroho Arif 
Published: April 2021

Pada era teknologi modern saat ini, penggunaan sistem Enterprise Resource Planning (ERP) sangat dibutuhkan oleh perusahaan untuk proses penjualan produk atau jasa dan pencatatan keuangan perusahaan. Dengan adanya sistem ERP dapat menghubungkan area fungsional di dalam perusahaan. Cafe cozy adalah salah satu Café yang ingin mengimplementasikan dari ERP (Enterprise Resource System) pada kegiatan transaksi yang dilakukan sehingga dengan diterapannya sistem ini diharapakan dapat meningkatkan kinerja Cafe terutama dalam pencatatan dan penyimpanan data pada café, mendapatkan informasi secara real time dan akurat tentang info produk, pemesanan, penjualan dan accounting serta mempermudah dalam pembuatan laporan/dokumen. Dengan metode Accelerated SAP adalah metode yang dipilih peneliti yang merupakan metode paling cepat dan efisien untuk proyek implementasi ERP saat ini. Dengan diterapkannya sistem ini maka kegiatan transaksi mulai dari pencatatan pesanan, penyimpanan data-data serta kegiatan transaksi lainnya bisa dilakukan dengan cepat, efisien dan terkomputerisasi dengan baik.
Perancangan Sistem Informasi Penyewaan Mobil di Videl Rental Berbasis Java
Authors: Haidar Paskhal , Dhika Harry , Habibie Muhammad Tri 
Published: April 2021

Kebutuhan migrasi hingga saat ini diikuti dengan perkembangan zaman, hal tersebut membuat Videl rental harus ikut berjuang didalamnya. Videl rental membuthkan sebuah terobosan baru dalam teknologi yang dipakainya untuk mengoperasionalkan seluruh kegiatannya. Hal sederhanan yang dilakukan yakni pendataan sewa mobil, hal ini menjadi perhatian khusus oleh Videl rental, berbagai masalah timbul dalam perjalanan kegiatan yang dilaksanakan. Kajian mengenai efektifitas secara garis besar menjadi perhatian, hal itu dilihat dari terwujudnya aplikasi yang dibuat. Sehingga, dibutuhkan perangkat lunak tambahan dalam melakukan penyewaan mobil, dari kasus ini maka dibuat sebuah aplikasi komputer untuk menampung pencatatan dan perhitungan penyewaan pada mobil Videl Rental. Tujuan dari kajian ini membuat lebih praktis walau dalam prosesnya dibutuhkan analisa lebih lanjut. Penyewaan mobil seperti laporan data mobil, penyewa, sopir, sewa serta pengembalian mobil, walau harus melakukan penyesuaian dari sistem lama ke sistem baru diharapkan karyawan akan dapat melakukan penyesuaian dan pengambangan untuk meningkatkan layanan Videl rental. Metode penelitian yang diterapkan yakni Grounded Research. Aplikasi ini untuk mempermudah perusahaan rental mobil untuk lebih mendekatkan diri pada pelaggan dan memiliki riwayat penyewaaan mobil dengan sistem informasi yang telah terkomputerisasi.
Penerapan Project Based Learning Berbasis Keterampilan Sosial Mata Pelajaran Kewarganegaraan di Sekolah Menengah Atas
Authors: Herpratiwi Herpratiwi , Taufiqurrahman Taufiqurrahman , Widodo Sugeng , Effendi Refki 
Published: April 2021

Penelitian bertujuan untuk menghasilkan dan menguji produk pembelajaran Project Based Learning berbasis keterampilan sosial mata pelajaran PKN. Masalah yang ada adalah rendahnya keterampilan sosial siswa SMAN 1 Baradatu, Way Kanan Lampung. Penelitian ini merupakan jenis penelitian pengembangan R&D (Research and Development) model 4-D (four D models) Thiagharajan. Subjek dalam proses pengembangan produk penelitian adalah 5 guru dan 10 siswa SMA Negeri 1 Baradatu, Way Kanan. Proses pengumpulan data menggunakan angket, wawancara, tes dan pengamatan. Angket yang digunakan berupa angket terbuka skala likert dengan jumlah pernyataan 10 soal, wawancara dengan jumlah 13 pertanyaan Tes yang digunakan berupa tes essay sebanyak 15 soal. Analisis hasil belajar dengan uji-t. Keterampilan social siswa setelah diajarkan dengan Project Based Learning yang sebelumnya nilai signifikan 7,72 menjadi lebih tinggi dengan nilai signifikan 0,24.
The Effect Of Indirect Coded Versus Indirect Non-Coded Corrective Feedback On Improving Students’ Grammatical Accuracy Of EFL Writing Class
Authors: Doi Maksimilianus , Separ Fransiskus Maria , Wanggai Febe F. Irawati 
Published: April 2021

The aimed at investigating the effectiveness of indirect coded CF and indirect non-coded CF on improving grammatical accuracy at the fourth semester students of English Literature Study Program Flores University in 2013/2014. This research was quasi-experiment with pre-test-post-test non-equivalent design. As the sample, 54 students in three intact classes with 18 students of each class were randomly assigned to three groups; indirect coded CF, indirect non-coded CF, and control groups. Free writing was the major source of data. The scoring scheme adopted based on the five categories; content, organization, vocabulary, language use, and mechanics. The instrument reliability was assessed by the inter-rater technique. ANCOVA was to analyze data continued by post-hoc Scheffe. The upshots denote that (1) indirect-coded CF and indirect non-coded CF have a significant difference of effectiveness on grammatical accuracy in the second draft with self editing strategy: (2) indirect coded CF is more effective than indirect non-coded CF, and that of control group in the second draft with self-editing strategy; (3) indirect coded CF and indirect non-coded CF have a significant different in a new draft; (4) indirect coded CF is more effective than indirect non-coded CF, and that of control group in a new draft
“Caminante no hay camino, se hace arqueología al andar”: reflexiones en torno a una arqueología política
Authors: Gilardenghi Ezequiel 
Published: April 2021

Este trabajo plantea una serie de preguntas tendientes a discutir los valores y normas impuestas en la arqueología argentina, por ejemplo ¿Es posible cambiar nuestras prácticas?,¿De qué modo podemos democratizar y flexibilizar la arqueología?,¿Desde dónde y cómo hacerlo? La arqueología, en nuestro país, esta demarcada por las exigencias académicas, las cuales definen el tipo de ciencia que llevamos adelante, desde como publicamos hasta cual es el objeto de estudio de la arqueología, pasando por las relaciones dentro de los equipos de investigación. En consonancia con esto, todo aquello (prácticas, metodologías, marcos teóricos, etc.) que caiga fuera de esa orbita predefinida es, muchas veces, cuestionado e ignorado. A partir de la enumeración y descripción de diversas situaciones, bosquejo, lo que para mí es la arqueología en nuestro país. Finalmente, ejemplifico con diferentes casos, como es posible una visión innovadora que subvierta las características de la actual arqueología argentina, al mismo tiempo propongo el concepto de anarco-epistemología para enfrentar al disciplinamiento del que somos parte.
Lessons learnt from design and construction of dams in Brazil
Authors: Cruz Paulo Teixeira da 
Published: April 2021

This paper deals with design and construction of dams built in Brazil. A brief introduction on the history of these dams is followed by the main types of dams, that due to the environment, site topography, climate, foundation conditions and borrow materials, have been considered the most adequate and economical both for irrigation purposes or power generation.
A second item deals with peculiar behaviour of the residual soils used as construction materials regarding flow aspects and construction pore pressures. The use of saprolitic soils is also discussed as well as of rock materials that disintegrate under drying and wetting cycles.
The shear strength parameters of these materials obtained in laboratory and field tests are presented. The compressibility and the stability of the dams, and the measured flows through the foundations are reported.