bluuebunny/crossref_metadata_2025 huggingface dataset:
PENGARUH TINGKAT PERCAYA DIRI TERHADAP PRESTASI BELAJAR SISWA KELAS X IPS PADA MATA PELAJARAN EKONOMI DI SMA YLPI PEKANBARU
Authors: Lasmaida Yanti  , Zakir Has
Published: March 2023

Penelitian ini dilakukan dengan tujuan untuk mengetahui pengaruh tingkat percaya diri terhadap prestasi belajar siswa kelas X IPS pada mata pelajaran Ekonomi di SMA YLPI Pekanbaru. Jenis penelitian ini adalah deskriptif eksplanatori dengan sampel adalah siswa kelas X IPS SMA YLPI yang berjumlah 67 orang. Teknik pengambilan sampel yang digunakan adalah menggunakan sampling jenuh. Teknik analisis data yang digunakan adalah analisis regresi sederhana. Berdasarkan hasil penelitian yang telah dilakukan diketahui bahwa tingkat percaya diri siswa SMA YLPI Pekanbaru berpengaruh terhadap prestasi belajar. Hal ini diketahui dari nilai thitung yang lebih besar dari ttabel atau 10,651 > 2,970 dengan tingkat signifikansi 0,000 > α = 0,05. Besarnya pengaruh tingkat percaya diri terhadap prestasi belajar adalah sebesar 59,6% sedangkan sisanya dipengaruhi oleh faktor lain yang tidak diteliti dalam penelitian ini.
KENDALA GURU DALAM MENGIMPLEMENTASIKAN KURIKULUM 2013 DI KABUPATEN INDRAGIRI HULU
Authors: Sauda Ike Nurjanah
Published: March 2023

Tujuan penelitian adalah untuk mengetahui: (1) Kendala guru Ekonomi SMA di Kabupaten Indragiri Hulu dalam impelementasi kurikulum 2013 dilihat dari perencanaan pembelajaran. (2) Kendala guru Ekonomi SMA di Kabupaten Indragiri Hulu dalam implementasi kurikulum 2013 dilihat dari pelaksanaan proses pembelajaran. (3) Kendala Ekonomi SMA di Kabupaten Indragiri Hulu dalam implementasi kurikulum 2013 dilihat dari evaluasi hasil pembelajaran. Penelitian ini merupakan penelitian deskriptif dengan pendekatan kuantitatif. Penelitian ini adalah penelitian populasi dengan subjek penelitian guru-guru yang tergabung dalam MGMP Ekonomi di Kabupaten Indragiri Hulu, yaitu berjumlah 46 orang. Pengumpulan data menggunakan angket, wawancara, observasi dan dokumentasi. Uji validitas instrumen dilakukan melalui penilaian para ahli (Judgement Expert). Data disajikan berdasarkan hasil analisis data yang dihasilkan dan diinterpretasikan sesuai dengan kriteria indikator yang diukur. Hasil penelitian menunjukkan bahwa: (1) kendala guru Ekonomi SMA di Kabupaten Indragiri Hulu dalam pelaksanaan kurikulum 2013 dilihat dari perencanaan pembelajaran dengan skor 130,22 berada pada rentang 130,22- 153,22 dengan kategori cukup banyak kendala. Kendala tertinggi ada pada indikator Merumuskan indikator dan tujuan berdasarkan kemampuan HOTS. (2) kendala  guru Ekonomi SMA di Kabupaten Indragiri Hulu dalam pelaksanaan kurikulum 2013 dilihat dari proses pelaksanaan pembelajaran dengan skor 124,75 berada pada rentang 124,75- 143,67 dengan kategori cukup banyak kendala . Kendala  tertinggi ada pada indikator merancang media untuk pembelajaran 5M (3) kendala  guru Ekonomi SMA di Kabupaten Indragiri Hulu dalam pelaksanaan kurikulum 2013 dilihat dari perencanaan proses pembelajaran dengan skor 153,63 berada pada rentang 153,63-167,75 dengan kategori cukup banyak kendala. Kendala  tertinggi ada pada indikator mengolah/merekapitulasi nilai.
ANALISIS KESULITAN MAHASISWA DALAM PENYUSUNAN RENCANA PELAKSANAAN PEMBELAJARAN PADA KULIAH PRAKTIK LAPANGAN PENDIDIKAN
Authors: Supatmini
Published: March 2023

Penelitian ini memiliki tujuan untuk mengetahui apa saja kesulitan yang dihadapi oleh mahasiswa Pendidikan Akuntansi angkatan 2016 dalam penyusunan rencana pelaksanaan pembelajaran (RPP) saat pelaksanaan Kuliah Praktik Lapangan Pendidikan. Penelitian ini termasuk jenis penelitian deskripsi kualitataif dengan melakukan pengamatan dan wawancara dengan mengambil kesimpulan dalam bentuk penjelasan atau uraian. Instrumen penelitian dalam penelitian kualitatif yaitu peneliti itu sendiri dan subjek penelitian dengan menggunakan Purposive Sampling atau pengambilan data dengan adanya pertimbangan tertentu. Hasil penelitian yang telah dilakukan diperoleh beberapa kesulitan yang dialami oleh mahasiswa Pendidikan Akuntansi angkatan 2016 dalam penyusunan rencana pelaksanaan pembelajaran (RPP) saat pelaksanaan kuliah praktik lapangan pendidikan dengan rata-rata kesulitan seperti kesulitan dalam menentukan kompetensi dasar, kesulitan dalam menentukan metode pembelajaran, kesulitan dalam menentukan alokasi waktu dan kesulitan dalam membuat format penilaian.
GAMBARAN PROKRASTINASI AKADEMIK PADA SISWA KELAS XI IPS DI SMAN 1 RENGAT
Authors: Witri Khalfiyah
Published: March 2023

Penelitian ini bertujuan untuk menggambarkan prokrastinasi akademik yang dilakukan oleh siswa kelas XI IPS di SMAN 1 Rengat. Prokrastinasi akademik merpakan penundaan yang dilakukan pada tugas yang sifatnya formal yang berhubungan dengan tugas akademik. Jenis penelitian ini adalah penelitian deskriptif kuantitatif. Subjek penelitian ini adalah siswa kelas XI IPS di SMAN 1 Rengat yang  berjumlah 84 siswa. Alat yang digunakan dalam penelitian ini adalah kusioner dengan mengacu pada aspek prokrastinasi akademik, yaitu adanya penundaan untuk memulai maupun menyelesaikan kerja pada tugas yang dihadapi, kelambanan dalam mengerjakan tugas, kesenjangan waktu antara rencana dan kinerja aktual, dan melakukan aktivitas lain yang lebih menyenangkan daripada melakukan tugas yang harus dikerjakan. Skala prokrastinasi akademik yang telah di hitung menggunakan bantuan program SPSS versi 22.0 for window, di peroleh perhitungan reliabilitas seluruh instrument dengan menggunakan rumus koefisien Alpha Cronbach sebesar 0,967. Berdasarkan hasil penelitian, dapat disimpulkan bahwa prokrastinasi akademik yang dilakukan oleh siswa dan siswi kelas XI IPS di SMA N 1 Rengat tergolong sedang. Dari 84 responden terdapat 9 orang yang tergolong rendah dengan presentase sebesar 10,7%, 39 orang tergolong sedang dengan presentase sebesar 46,4%, dan 36 orang  tergolong tinggi dengan presentase sebesar 42,9%.
PERBANDINGAN PENGGUNAAN PENDEKATAN SAINTIFIK DENGAN MEDIA GAMBAR DAN METODE DISKUSI TERHADAP MINAT BELAJAR SISWA DI SMAN 2 SIAK KECIL
Authors: Desi Lestari
Published: March 2023

Penelitian ini bertujuan untuk mengetahui perbandingan hasil rata-rata posttest setelah diterapkan pendekatan saintifik menggunakan media gambar dan metode diskusi untuk meningkatkan minat belajar siswa kelas X IPS SMAN 2 Siak Kecil. Analisis data digunakan dengan uji-T. Setelah diterapkan perlakuan penggunaan pendekatan saintifik menggunakan media gambar dan diskusi, kelas eksperiman memiliki rata-rata peningkatan minat belajar yaitu 84,18. Sedangkan perlakuan penggunaan pendekatan saintifik menggunakan metode diskusi tanpa media gambar peningkatan minat belajar ekonomi pada materi manajemen dan manajer yaitu 74,04. Hasil penelitian menunjukan ada perbandingan hasil rata-rata setelah diterapkan pendekatan saintifik menggunakan media gambar dan metode diskusi lebih tinggi dari pada pendekatan saintifik menggunakan metode diskusi.
PENERAPAN MODEL PEMEBELAJARAN KOOPERATIF TIPE GROUP INVESTIGATION UNTUK MENINGKATKAN AKTIVITAS DAN HASIL BELAJAR EKONOMI SISWA
Authors: Mia Audina
Published: March 2023

Penelitian ini berfokus pada dua variabel yaitu meningkatkan aktivitas siswa dan hasil belajar.  Penelitian ini dilakukan dua siklus. Masing-masing siklus terdiri dari dua kali pertemuan untuk proses pembelajaran dan pada pertemuan ketiga dilaksanakan penilaian harian (PH) untuk mengetahui tingkat pemahaman peserta didik setelah mengikuti proses pembelajaran. Pada siklus I, aktivitas siswa yaitu 80,71% kemudian mengalami peningkatan pada siklus II yaitu 90.47%. Hal ini dikarenakan siswa mampu aktiv baik pada saat proses pembelajaran dengan bertanya atau menjawab pertanyaan dari guru, bekerja sama dalam kelompok diskusi, memberikan pendapat dalam suasana diskusi di kelas. Hasil belajar siswa sebelum tindakan yaitu 61,90% kategori cukup. Kemudian pada saat kelas telah diberi tindakan pada siklus I hasil belajar siswa yaitu 66,25% kategori cukup. Pada siklus II hasil belajar siswa mengalami peningkatan yaitu 77,5% dengan kategori baik. Ketuntasan belajar siswa terlihat sebelum tindakan kelas dinyatakan belum tuntas secara klasikal dengan persentase 33,33% dan pada siklus I juga masih dinyatakan belum tuntas dengan persentase 61,78%. Namun pada siklus II, ketuntasan klasikal yaitu 81,25% ≥ 80% sehingga kelas dapat dinyatakan tuntas. Berdasarkan hasil penelitian yang telah dijelaskan, maka dapat dikatakan bahwa dengan penerapan model pembelajaran kooperatif tipe group investigation dapat meningkatkan aktivitas dan hasil belajar mata pelajaran ekonomi siswa kelas XI IPS 2 SMA Negeri 1 Tembilahan.
PENGARUH KEMANDIRIAN DALAM MENGERJAKAN TUGAS DAN KEAKTIFAN TERHADAP HASIL BELAJAR SISWA DI SMAN 1 BATANG CENAKU
Authors: Nur Istinggofaroh  , Fitriani
Published: March 2023

Penelitian ini dilakukan untuk mengetahui pengaruh kemandirian dalam mengerjakan tugas dan keaktifan terhadap hasil belajar siswa pada mata pelajaran ekonomi kelas XI IPS di SMAN 1 Batang Cenaku. Metode pengambilan sampel yang digunakan adalah propotional random sampling. Analisis data kuantitatif meliputi: uji validitas, uji reliabilitas, analisis deskriptif, uji normalitas, uji multikolinieritas, uji regresi berganda, pengujian hipotesis melalui uji t, uji F, serta analisis koefesien determiasi (R2). Hasil pengujian hipotesis, diketahui nilai t hitung 0,981 dengan t tabel 1,667 untuk variabel kemandirian dalam mengerjakan tugas. Sedangkan pada variabel keaktifan nilai t hitung 1,123 dan t tabel 1,667. Sehingga dapat disimpulkan tidak terdapat pengaruh kemandirian dalam mengerjakan tugas dan kekatifan terhadap hasil belajar siswa secara partial. Namun, dari hasil uji F diketahui Fhitung 5,131Ftabel 3,11, sehingga dapat disimpulkan bahwa kemandirian mengerjakan tugas dan keaktifan belajar secara bersama-sama memiliki pengaruh yang positif terhadap hasil belajar siswa di SMAN 1 Batang Cenaku.
PENGARUH METODE DISKUSI DENGAN MEDIA GAMBAR TERHADAP MINAT BELAJAR EKONOMI SISWA KELAS XI SMA NEGERI 1 TELUK MERANTI KABUPATEN PELALAWAN
Authors: Dede Ratna Sari  , Nurhuda
Published: March 2023

Jenis penelitian ini ialah penelitian eksperimen yang mempunyai tujuan untuk mengetahui pengaruh metode diskusi dengan media gambarterhadap minat belajar ekonomi siswa kelas XI SMAN 1 Teluk Meranti Tahun Ajaran 2018/2019. Subjek pada penelitian ini adalah seluruh kelas XI IPS di SMAN 1 Teluk Meranti yang berjumlah 44 siswa. Variabel yang digunakan peneliti dalam penelitian ini ialah metode diskusi dengan media gambar sebagai variabel bebas dan minat belajar sebagai variabel terikat. Adapun tekhnik pengambilan data  yang digunakan ialah kuesioner (angket). Berdasarkan hasil analisis data yang diperoleh maka dapat disimpulkan terdapat pengaruh yang signifikan antara metode diskusi dengan media gambar untuk meningkatkan minat belajar Ekonomi di SMA Negeri 1 Teluk Meranti. Hasil pre-test dari dua kelas yang telah dilakukan maka didapatlah rata-rata kelas XI IPS1 sebesar 64,77% dan kelas XI IPS2 sebesar 67,23%, dan data post-testnya iyalah rata-rata kelas XI IPS1 sebesar 87,05% dan rata-rata kelas XI IPS2 sebesar 96,36%. Maka dapat dilihat bahwa hasil meningkat setelah dilakukan perlakuan yaitu menggunakan metode diskusi dengan media gambar. Serta disarankan bagi guru sebagai acuan dalam pembelajaran untuk lebih kreatif dalam memilih media pembelajaran agar siswa tidak jenuh.
PENGARUH PEMANFAATAN SUMBER BELAJAR TERHADAP HASIL BELAJAR SISWA PADA MATA PELAJARAN EKONOMI KELAS XI IPS SMA NEGERI 3 DUMAI
Authors: Meysha Ziya Eqi Putri  , Agus Baskara
Published: March 2023

Pemanfaatan sumber belajar yang tersedia disekolah seperti buku cetak jarang digunakan oleh siswa dikarenakan selama pandemi covid-19 siswa hanya belajar dari rumah dan lebih fokus pada LKS saja serta siswa lebih banyak mengakses sumber belajar yang berasal dari internet.penelitian ini bertujuan untuk mengetahui pengaruh pemanfatan sumber belajar dimasa pandemi Covid-19 terhadap hasil belajar siswa pada mata pelajaran ekonomi siswa kelas XI SMA Negeri 3 Dumai. Penelitian ini menggunakan penelitian kuantitatif.Populasi dalam penelitian ini yaitu keseluruhan siswa kelas XI IPS yang berjumlah 133 siswa yang terbagi dalam empat kelas yaitu IPS 1,IPS 2, IPS 3,dan IPS 4. Dengan menggunakan teknik proportional random sampling didapatkan jumlah sampel sebanyak 101 siswa. Teknik pengumpulan data dalam penelitian ini dilakukan dengan menyebarkan angket dan dokumentasi. Untuk analisis Validitas pada penelitian ini menggunakan bantuan program Microsoft Exel dan reliabilitas menggunakan program SPSS versi 22.0. Teknik analisis data yaitu regresi sederhana.Besarnya pengaruh yang didapat dalam penelitian ini tentang variabel pemanfaatan sumber belajar terhadap hasil belajar siswa kelas XI yaitu sebesar 91.1 % dan sisanya sebesar 8,9 % dipengaruhi oleh faktor lain yang tidak terdapat didalam penelitian ini. Bagi Sekolah dapat lebih meningkatkan dan memperhatikan sumber belajar yang digunakan oleh siswa, sehingga siswa dapat mencapai hasil belajar yang baik

Kata Kunci    : Sumber Belajar,  Hasil Belajar Ekonomi
VISUALIZATION OF SOLVING MATERIAL TRANSPORTATION PROBLEMS IN CRACKED-POROUS ENVIRONMENTS
Authors: Matyakubov M.Ya. , Aliyev O.A. , Khujaniyazova G.Y.
Published: March 2023

The article focuses on several types of balanced and unbalanced adsorption. Hydrodynamic methods for the migration of substances under porous conditions were analysed. General information on the methods of hydrodynamic analysis of the movement of substances in cracked-porous environments is provided. Considering the hydrodynamic dispersion, diffusion effects in the crack and its effect on the migration process in the environment, the problem of material migration in an environment consisting of a single porous block and a single crack of the adsorbed substance is examined.
SYSTEM ANALYSIS OF SUBJECT IDENTIFICATION OF A DIGITAL TWIN
Authors: Меденников В.И.
Published: March 2023

Статья посвящена проблеме разрешения многозначности и неопределенности понятия цифрового двойника, исходя из системного подхода, оперирующего понятием системы, основным предназначением которой является достижение определенной цели. Показан научный подход к формированию цифровых двойников на примере одной из сложней- ших отраслей экономики для цифровизации и моделирования - сельского хозяйства на основе единой цифровой платформы управления отраслью.

The article is devoted to the problem of resolving the ambiguity and uncertainty of the concept of a digital twin, based on a systematic approach that operates with the concept of a system, the main purpose of which is to achieve a specific goal. A scientific approach to the formation of digital twins is shown on the example of one of the most difficult sectors of the economy for digitalization and modeling - agriculture, based on a single digital platform for managing the industry.
DISCOVERY SERVICE FOR XML DATA
Authors: Колобов О.С. , Леонова Ю.В. , Турчановский И.Ю.
Published: March 2023

В работе рассматривается дискавери сервис для XML-данных, который представляет собой распределенную систему автономных поисковых машин (сервер ZooPARK) с выделенным центром координации и собственным сбалансированным API. Дано описание основных систем и подсистем дискавери сервиса, в том числе дано описание объектной модели документа, которая лежит в основе ETL-процессов (сбор, подготовка, загрузка и индексирования данных). В рамках работы выполнено исследование различных подходов пригодных для равномерного распределения данных на конечном множестве вычислительных узлов.

The paper considers a discovery service for XML data, which is a distributed system of autonomous search engines (ZooPARK server) with a dedicated coordination center and its own balanced API. A description of the main systems and subsystems of the discovery service is given, including a description of the document object model that underlies ETL processes (data collection, preparation, loading and indexing). As part of the work, a study was made of various approaches suitable for uniform distribution of data on a finite set of computing nodes.
NUMERICAL ANALYSIS OF PROGNOSTIC PROPERTIES OF A MATHEMATICAL MODEL OF INFLAMMATION DYNAMICS IN ASEPTIC SKIN WOUNDS
Authors: Михаханова Т.С. , Воропаева О.Ф.
Published: March 2023

В работе представлена математическая модель динамики асептического воспаления в виде жесткой нелинейной системы дифференциальных уравнений с запаздыванием. Показана мультистабильность системы, выполнен анализ асимптотической устойчивости состояний равновесия, исследован триггерный механизм переключения состояний системы. Показано, что принятая модель может быть эффективным инструментом для изучения и раннего прогноза характера иммунного ответа, а также для анализа гипотетических терапевтических стратегий, предотвращающих прогрессирование острого воспаления в хроническое.

In this paper we consider a stiff nonlinear system of differential equations with a delay describing the inflammation dynamics in aseptic skin wounds. The multistability of the system is found. The analysis of the asymptotic stability of the steady states is performed. The trigger mechanism of switching states of the system is investigated. The possibilities of the model as an effective tool for studying and early predicting the nature of the immune response, as well as for analyzing hypothetical therapeutic strategies that prevent the progression of acute inflammation into chronic inflammation are shown
DIGITAL LIBRARY MANAGEMENT SYSTEM OF FRC ICT
Authors: Барахнин В.Б. , Федотова О.А.
Published: March 2023

Статья посвящена описанию информационной системы для поддержки научных исследований, организованной в виде электронной библиотеки. В рамках данного подхода электронные библиотеки рассматриваются как отдельная конкретная технология работы с цифровой информацией, образующая особый класс информационных систем, предназначенных для управления информационными ресурсами. Описываются архитектура информационной системы, принципы интеграции с цифровым репозиторием, работа со словарями, которые используются для систематизации и классификации информационных ресурсов и моделирования связей между ними. Представлены основные коллекции электронной библиотеки, тезаурус по информационным технологиям, а также возможности работы с ними.

The article is devoted to the description of an information system for supporting scientific research, organized in the form of an electronic library. Within the framework of this approach, digital libraries are considered as a separate specific technology for working with digital information, forming a special class of information systems designed to manage information resources. The architecture of the information system, the principles of integration with a digital repository, work with dictionaries, which are used to systematize and classify information resources and model the links between them, are described. The main collections of the electronic library, the thesaurus of information technology, as well as the possibilities of working with them are presented.
THE CONCEPT OF A SCIENTIFIC DISTRIBUTED DECENTRALIZED INFORMATION-COMPUTATIONAL NET CONSISTING OF UNIFORMSCIENTIFIC DATA AND COMPUTING NODES
Authors: Привезенцев А.И. , Титов А.Г. , Лаврентьев Н.А.
Published: March 2023

В работе рассматривается вариант решения ряда проблем компьютерной поддержки научных исследований через концепцию создания научной распределенной децентрализованной информационно-вычислительной сети, состоящей из типовых узлов научных данных и вычислений. В основе рассматриваемой концепции лежат идеи Semantic Web об автономных программных агентах, ситуативно коммуницирующих с поставщиками данных и вычислений, представленных в виде множества узкоспециализированных научных информационно-вычислительных веб-систем, поддерживаемых малыми научными коллективами.

This paper considers a variant of solving a number of problems of computer support of scientific research through the concept of creating a scientific distributed decentralized information-computing network, consisting of typical nodes of scientific data and computations. The concept is based on Semantic Web ideas about autonomous software agents, situationally communicating with data and computation providers, represented as a set of highly specialized scientific information-computing web systems, supported by small scientific teams.
DEDUCTIVE VERIFICATION OF A SIMPLE MUTUAL EXCLUSION PROTOCOL
Authors: Шелехов В.И.
Published: March 2023

Механизм взаимного исключения традиционно применяется для защиты разделяемых структур данных в распределенных системах управления. Проведена дедуктивная верификация простого протокола взаимного исключения Маскарелла для произвольного числа процессов с дополнительным процессом-координатором. Верифицируются два основных свойства: два процесса не могут одновременно находиться в критической секции; любой процесс, пытающийся войти в критическую секцию, попадает в нее через конечное время. Доказательство свойств выполнено в системах верификации Why3 и Event-B.

The mutual exclusion mechanism is traditionally used to protect shared data structures in distributed control systems. A deductive verification of Mascarell's simple mutual exclusion protocol for an arbitrary number of processes with an additional coordinator process is performed. Two main properties are verified: two processes cannot be in a critical section at the same time; any process trying to get into a critical section eventually gets into it. The proof of the properties is performed in the verification systems Why3 and Event-B.
VALIDATION OF THE LANDSAT-8 SECOND LEVEL TEMPERATURE PRODUCT (L2SP) BASED ON GROUND DATA
Authors: Мамаш Е.А. , Пестунов И.А. , Кудряшова С.Я. , Чумбаев А.С.
Published: March 2023

Рассматриваются вопросы валидации температурного продукта второго уровня Landsat-8 (L2SP), выпускаемого геологической службой США. Валидация производится на основе наземных измерений, полученных с использованием автоматизированных регистраторов температуры DS-1921 “Thermochron”, установленных на специально подобранных полигонах, расположенных на территории Горного Алтая.

The issues of validation of the second level temperature product Landsat-8 (L2SP), produced by the US Geological Survey, are considered. Validation is carried out on the basis of ground-based measurements obtained using automated temperature recorders DS-1921 “Thermochron” installed at specially selected test sites located on the territory of Gorny Altai.
Ville africaine, ville en crise : la question de la dérive urbaine chez Kossi Efoui, Mũkoma wa Ngũgĩ et Teju Cole
Authors: FOPA KUETE Roger
Published: March 2023

Kossi Efoui – Solo d’un revenant (Le Seuil, 2008) –, Mũkoma wa Ngũgĩ – Là où meurent les rêves (L’Aube, 2018) – et Teju Cole – Chaque jour appartient au voleur (Zoé, 2018) –, représentent dans leurs œuvres des villes africaines marquées par des fractures sociales et des violences insoutenables. Celles-ci se révèlent sous la forme d’une architecture urbaine de la séparation (check-point, frontière, ligne de démarcation...) et la mise en avant des traces de l’indifférence collective qui inspirent au personnage, de retour dans son terroir, un profond sentiment d’étrangeté. M’appuyant sur les postulats théoriques et méthodologiques de la géocritique (Westphal, 2007, 2011), les concepts de déterritorialisation/reterritorialisation (Deleuze et Guattari, 2005 [1991]) et de pouvoir (Foucault, 2008), je me propose d’étudier la dérive en ces villes désormais villes en crise, définie comme une activité fastidieuse et dans une large mesure difficile en raison, d’une part, de l’état permanent d’insécurité qui y sévit et, d’autre part, du fait de la condition fragile de leurs habitants. J’analyse aussi les configurations spatiales des villes africaines et leurs tracés comme l’expression d’une sourde bataille entre le monde occidental et l’Afrique ; la face la plus hideuse de sa manifestation étant le contraste saisissant entre l’indescriptible misère des Autochtones et le luxe insultant des Allogènes, ici les corporations capitalistes.
A Study of [2+2] Cycloaddition–Retroelectrocyclization in Water: Observation of Substrate-driven Transient Nanoreactor Induced New Reactivity
Authors: K. M Neethu , Nag Kritika , Hassan Dar Arif , Bajaj Ashima , Arya Gopal S. , Gowri Vijayendran , Nagpure Mithilesh , Sartaliya Shaifali , Sharma Raina , Kumar Solanki Arun , Ehesan Ali Md. , Muthukrishnan Azhagumuthu , Jayamurugan Govindasamy
Published: March 2023

Organic solvents limit [2+2] cycloaddition-retroelectrocyclization (CA–RE) in biological fields. We examined the formation of 1,1,4,4-tetracyanobuta-1,3-dienes (TCBDs) through CA–RE reactions and their unusual reactivity to produce N-heterocyclic compounds when surfactant nature and concentrations were varied in the aqueous phase. An environment in which transient self-assembly (vesicles) was induced by substrate and surfactant molecules initiated new reactivity through H2O addition on the TCBD generating enol form of the intermediate which results in the formation of the 6,6-dicyano-heteropentafulvene (amidofulvene) compound while lamellar sheets at higher concentrations favored TCBD generation. Interestingly, the amidofulvene underwent a clean transformation to 6-membered-heterocycles via keto-enol tautomerism mediated by a polar aprotic solvent which resembles cardiotonic drugs (milrinone, amrinone), opening up a new avenue for drug discovery. Unlike organic solvent-mediated CA–RE reactions, the present nanoreactor-mediated approach enabled the selective production of TCBDs as well as new heterocycles using H2O as a green solvent. Besides the widely explored organic electronics/materials, we believe that this study would help overcome the long-standing limitation of CA–RE reaction applicability in biological fields.
Redox-Based Defect Detection in Packed DNA: Insights from Hybrid Quantum Mechanical/Molecular Mechanics Molecular Dynamics Simulations
Authors: Kılıç Murat , Diamantis Polydefkis , Johnson Sophia K. , Toth Oliver , Rothlisberger Ursula
Published: March 2023

The impact of an 8-oxoguanine (8oxoG) defect on the redox properties of DNA within the Nucleosome Core Particle (NCP) structure was investigated employing hybrid Quantum Mechanical/Molecular Mechanics (QM/MM) molecular dynamics simulations of native and 8oxoG-containing NCP systems with an explicit representation of a biologically relevant environment. Two distinct positions within the NCP were considered for 8oxoG insertion. In both cases, it is found that the presence of 8oxoG drastically decreases the redox free energy of oxidation, by roughly 1 eV, very similar to what was recently reported for free native and 8oxoG-containing DNA. In contrast, the effect of 8oxoG on the reorganization free energy is even smaller for packed DNA (decrease of 0.13 eV and 0.01 eV for defect-free and defect-containing systems respectively) compared to the one of free DNA (0.25 eV),consistent with the increased rigidity of the NCP as compared to free DNA. Such a conclusion favors the idea that also in the case of chromatin, defect-induced changes in DNA redox chemistry can be exploited to recognize damaged bases via DNA mediated hole transfer.
Dissent in the Sediment? – Lake sediments as archives of short- and long-range impact of anthropogenic activities in northeastern Germany
Authors: Simon Marcel Pierre , Schatz Marlene , Böhm Leonard , Papp István , Grossart Hans-Peter , Andersen Thorbjørn Joest , Bálint Miklós , Düring Rolf-Alexander
Published: March 2023

The suitability of lake sediment cores to reconstruct past inputs, regional pollution, and usage patterns of pesticides has been shown previously. Until now, no such data exist for lakes in eastern Germany. Therefore, ten sediment cores (length 1 m) of ten lakes in eastern Germany, the territory of the former German Democratic Republic (GDR), were collected and cut into 5-10 mm layers. In each layer, concentrations of trace elements (TEs) As, Cd, Cr, Cu, Ni, Pb, S, Zn, as well as of organochlorine pesticides (OCPs) were analyzed. A miniaturized solid-liquid extraction technique in conjunction with headspace solid-phase microextraction (HS-SPME) and gas chromatography-mass spectrometry (GC-MS) was used for the latter. Of OCPs, only transformation products of dichlorodiphenyltrichloroethane (DDT) were found. Congener ratios indicate a mainly aerial input. In the lakes’ profiles, several regional features and also responses to national policies and measures are visible. Dichlorodiphenyldichloroethane (DDD) concentrations reflect the history of DDT use in the GDR. TEs show a uniform progression over time. They follow a trans-regional pattern and are indicative of activity and policy making in West Germany before 1990 instead of those in the GDR. Lake sediments proved to be suitable to archive short- and long-range impacts of anthropogenic activity. Our data can be used to complement and validate other forms of environmental pollution long-term monitoring and check for the efficiency of pollution counter measures in the past.
Binding of Phenothiazine Drugs to Heptakis-Methylated β- Cyclodextrin Derivatives: Thermodynamics and Structure
Authors: Andrade Brenda , Chen Ashley , Gilson Michael K.
Published: March 2023

Experimental binding data from simple, well-defined model cases such as host-guest systems, are of value in testing and training computational models of noncovalent binding, such as those used in drug discovery. Cyclodextrins (CDs), macrocycles of glucose units, form a particularly accessible class of host molecules that are water-soluble and amenable to derivatization. CDs are used for pharmaceutical formulations and can even be drugs in their own right. We used calorimetry and NMR spectroscopy to characterize the noncovalent association of native βCD and three methylated derivatives of βCD with five phenothiazine drugs. The strongest association observed, that of thioridazine and one of the methyl derivatives, exceeds the affinity of rimantidine with βCD, while methylation at the 3 position of βCD abolished binding for all of the drugs studied. The variations in binding entropy and enthalpy across the dataset demonstrate a clear pattern of entropy-enthalpy compensation. The NMR data show that all of the drugs position at least one aromatic proton at the secondary face of the CD, and most also show evidence of deep penetration of the binding site. The results of this study were used in the SAMPL9 blinded binding affinity- prediction challenge.
The accuracy of determining the coordinates of an unmanned aerial vehicle with a navigation complex integrating an electro-optical positioning system
Authors: Sheinikov A. A. , Kovalenko А. М. , Sanko А. А.
Published: March 2023

The article proposes the approaches to updating a strapdown inertial navigation system (SINS) based on data of the airborne electro-optical system (EOS) of an unmanned aerial vehicle (UAV). It is specified that the EOS is presented as a navigation data sensor. The rationale for the feasibility of such an approach is formed, especially in the terms of signal lack or suppression of satellite radio-navigation systems. It is proposed to ensure the accuracy of self-contained navigation by assigning an UAV route, including waypoints with terrestrial references (TRs). Notably, TR-associated image information is preliminarily downloaded into the flight management computer (FMC). The automated TR identification system with denoted coordinates at next waypoints, using airborne data, in fact, allows for alternative global positioning. The reliable operation of such an integrated navigation system over sufficiently extended legs of flight path, first, depends on the accuracy of its constituent elements. Taking into consideration the fact that conventional sensors of navigation information, such as a SINS and an altimeter, are quite well studied in numerous contributions. The article focuses on the UAV airborne electro-optical system and, specifically, on its application features as a navigation sensor. The factors influencing the accuracy of the UAV positioning data determination at waypoints according to the data of the airborne EOS are considered. The developed mathematical model of errors for the UAV inertial optical navigation complex (IONC) is presented. The analysis of the impact of airborne altimeter inaccuracies, earth’s surface features and the shift of the onboard digital camera optical axis, caused by random evolutions of the carrier body in turbulent atmosphere on the positioning accuracy, was conducted. The results of calculating lapses in determining the UAV positioning data, equipped with IONC, are given.
International Conference on Condensed Matter Physics and Materials (ICCMPM’2023)
Authors: Verjhula Dr. A. V. Jhone
Published: March 2023

ICCMPM-2023 brings in lot of cheers, encouragement and motivation in the minds of faculty, researchers and young students of Ethiraj College. Achieving this in association with ISCA is a great moral and academic support. Involvement of the teams comprising College management, advisory committee and invited speakers is very impressive.
Food purchasing practices of state exemplary family award recipients
Authors: S.D.N. Mohd Fadzli , Baharuddin A.S. , Wan Harun M.A.
Published: March 2023

Halal awareness among Muslims in Malaysia is one of the main reasons for the increase in
halal food production in Malaysia. Most Muslims in Malaysia are aware of purchasing and
consuming food products of their choice. Thus, this study aimed to analyse the food
purchasing practices implemented among State Exemplary Family Award recipients. This
study used a qualitative approach with a grounded theory design. Two data collection
methods were used in this study including documentation and interview study. The
documentation study reviewed verses from al-Qur’an, tafsir books, hadiths, journals, and
previous studies related to this study. The interview study was conducted through Focus
Group Discussion (FGD) to collect data from nine families of the selected respondents.
The data obtained from the interview study were analysed by using Non-numerical
Unstructured Data Indexing Searching and Theorizing (NUD.IST) software, also known
as QSR NVivo software version 7. A total of six themes were successfully developed in
analysing the food purchasing practices among State Exemplary Family Award recipients
and portrayed in a model known as Food Purchasing Practices of Exemplary Family
(FPPEF). The model describes the purchasing behaviour of AKM recipients to purchase
halal food products. Therefore, this study also contributes to developing a guideline for
purchasing food products that Muslim families can practice.
COVID-19 and early responses of Pakistan to mitigate the pandemic: A quick review
Authors: NAWAZ ALI
Published: March 2023

In Pakistan, the first case of COVID-19 was reported on February 26, 2020. As of September 18, 2020, Pakistan had 304,386 confirmed cases, out of which 291,683 patients were discharged, and 6,408 (2%) deaths took place. This narrative aimed to rapidly review Pakistan’s early successes in mitigating the COVID-19 pandemic. Initially, Pakistan did not allow anyone to enter the country from China, the center of the outbreak. National Command Operation Center (NCOC) ordered a lockdown for one month. However, Prime Minister (PM) and NCOC converted it into a Smart Lockdown to minimize the economic losses. Some quick and early initiatives by Pakistani leadership included the formulation of SOPs and initiation of programs like Resource Management System (RMS), Pak Negheyban application, Integrated Disease Information Management System (IDIMS), National helpline-1166, WhatsApp Chatbot (+92300-1111166), Isolated Hospitals, Infectious Treatment Centre, COVID-19 Telehealth Portal, Community Mobilization, Prime Minister's Relief Fund, Ehsaas Program, Smart Lockdowns, and Tiger Force. Early and quick initiatives by Pakistan helped slow down the spread of infection in the country. These initiatives against COVID-19 were also praised by WHO and included Pakistan among countries that effectively control the spread of infection.
Quality-of-life of patients living with thalassaemia in the West Bank and Gaza
Authors: Kohlbry Pamela , al-Karmi Bashar , Yamashita Robert
Published: March 2023

Background: In countries with low resources, the health and quality-of-life of people living with thalassaemia can be severely affected. Aims: This study examined the health-related quality-of-life of people living with thalassaemia in the West Bank and Gaza, Palestine. Methods: This was a cross-sectional study of a convenience sample of 104 patients (71 adults and 33 children) who lived with thalassaemia and their families in 2015 in the West Bank and Gaza. Participants were surveyed using the 36-item Short Form Health Survey, version 2 (SF36v2), Pediatric Quality of Life InventoryTM (PedsQL) and PedsQL Family Impact Module to assess their quality-of-life. With the SF36v2, we used normed-based scoring and for the PedsQL and Family Impact Module, we used the 0–100 scoring. Scores are reported as means and standard deviations and P < 0.05 considered statistically significant. Results: Quality-of-life scores were low across all domains, indicating poor quality-of-life. For bodily pain in the SF36v2, a significant difference was observed between the West Bank and Gaza. No significant differences were found between males and females. Data from the PedsQL showed no significant differences between the West Bank and Gaza. With the Family Impact Module, the summary score was higher among adults than among paediatric patients. Compared with other countries, thalassaemia patients in Palestine generally had lower quality-of-life scores in most domains. Conclusion: The lack of access to healthcare and blood transfusions, and the geopolitical challenges may be responsible for the low quality-of-life scores of patients living with thalassaemia in Palestine.
Use of camel urine is of no benefit to cancer patients: observational study and literature review
Authors: Al Zahrani Ali , Alfakeeh Ali , Alghareeb Waleed , Bakhribah Hatoon , Basulaiman Bassam , Alsuhail Abdullah , Alsharm Abdullah
Published: March 2023

Background: Complementary and alternative medicine is widely used in Saudi Arabia. One of the common practices is the use of camel urine alone or mixed with camel milk for the treatment of cancer, which is often supported by religious beliefs. Aims: To observe and follow-up cancer patients who insisted on using camel urine, and to offer some clinically relevant recommendations. Methods: We observed 20 cancer patients (15 male, 5 female) from September 2020 to January 2022 who insisted on using camel urine for treatment. We documented the demographics of each patient, the method of administering the urine, reasons for refusing conventional treatment, period of follow-up, and the outcome and side effects. Results: All the patients had radiological investigations before and after their treatment with camel urine. All of them used a combination of camel urine and camel milk, and treatment ranged from a few days to 6 months. They consumed an average of 60 ml urine/milk per day. No clinical benefit was observed after the treatment; 2 patients developed brucellosis. Eleven patients changed their mind and accepted conventional antineoplastic treatment and 7 were too weak to receive further treatment; they died from the disease. Conclusion: Camel urine had no clinical benefits for any of the cancer patients, it may even have caused zoonotic infection. The promotion of camel urine as a traditional medicine should be stopped because there is no scientific evidence to support it.
When Do Controlling Shareholders “Over-invest”? The Disciplinary Effect of Product Market Competition
Authors: Kang Hyung Cheol , Lee Ji Hye , Byun Hee Sub
Published: March 2023

This study examines the effect of the interaction between controlling shareholder ownership and product market competition on investment inefficiency in Korea. Consistent with classical agency theory, this study finds that the lower the controlling shareholder ownership, the greater the overinvestment. However, this relationship strengthens in noncompetitive markets but disappears in competitive markets. This suggests that product market competition has a disciplinary effect on the incentive of controlling shareholders to pursue private benefits. This study has implications for the disciplinary effect of competition and expands the literature on agency theory in emerging countries with concentrated ownership structures.
Prevalence of Hand Hygiene and Its Risk to Hand Eczema: A Meta-Analysis
Authors: Pangesti Lely Tri , Murti Bhisma , Ischan Burhannudin
Published: March 2023

Background: Hand eczema is an inflammation of the skin that is limited to the hands and/or wrists. Since the pandemic began, washing hands is one of the actions that can be taken as an effort to prevent the spread of COVID-19. With the increasing frequency of hand washing by health workers during the pandemic, it is important to evaluate the risk of developing hand eczema in health personnel.Subjects and Method: Meta-analysis was carried out according to the PRISMA flow chart and the PICO model (Population: health workers, Intervention: high frequency of hand washing, Comparison: low frequency of hand washing, Outcome: Hand eczema). The databases used are Google Scholar, PubMed, Scopus, Proquest, and Science Direct. Keywords used (hand hygiene) OR (frequency hand washing) AND (hand eczema). There were 17 cross-sectional studies published in 2018 to 2022 that met the inclusion criteria. Analysis was performed with Revman 5.3. Results: A meta-analysis was performed on 17 cross-sectional studies from China, Turkey, India, Thailand, Denmark, Sweden, Bulgaria and Ethiopia. The total sample size is 31,154. A meta-analysis of 10 cross-sectional studies concluded that hand hygiene with a frequency of 8 to 10 times per day has a 1.46 times the risk of having hand eczema compared to hand hygiene with a frequency of <8 times per day (aOR=1.46; 95% CI 1.46 to 1.80; p<0.001). A meta-analysis of 10 cross-sectional studies concluded that hand hygiene with a frequency of 15 to 20 times per day has a 1.58 times the risk of experiencing hand hygiene compared to a frequency of <15 times per day (aOR=1.58; 95% CI 1.43 to 1.74; p<0.001).Conclusion: The higher the frequency of hand hygiene, the higher the risk of hand eczema.
Keywords: hand hygiene, risk of hand eczema, health personnel
Correspondence:Lely Tri Pangesti. Masters Program in Public Health, Universitas Sebelas Maret. Jl. Ir Sutami 36A, Surakarta 57126, Jawa Tengah. Email: lellytrip@gmail.com. Telepon: 082223360202.
Meta-Analysis the Effects of Social Isolation and Loneliness on Cardiovascular Disease and Death in Elderly
Authors: Wulandari Ayu Novita , Murti Bhisma , Tamtomo Didik
Published: March 2023

Background: The impact of social isolation and loneliness on health and well-being is recognized globally as a public health problem. Social isolation can be experienced at any age, especially the elderly. This study aims to analyze and estimate the influence of social isolation and loneliness on cardiovascular disease and death in the elderly.Subjects and Method: The meta-analysis was carried out according to the PRISMA flow chart and the PICO model. P: Elderly, I: Social isolation and loneliness, C: Not social isolation and not lonely, O: Cardiovascular disease and death. Search for articles in this study through databases that include PubMed, Google Scholar, Science Direct and Scopus with keywords "social isolation" AND "loneliness" AND "cardiovascular disease" AND "elderly". “Social isolation” AND “loneliness” AND “mortality” AND “elderly”. Full paper article with cohort design, adjusted Hazard Ratio for effect size, research outcome are cardiovascular disease and death. Analysis was performed using Revman 5.3.Results: There were 18 articles with cohort designs originating from America, Finland, Canada, Tai-wan, Australia, the United States, Japan, Denmark, Amsterdam, England, Sweden, Jerusalem, Europe with a total of 1,375,816 research samples. A meta-analysis of 13 cohort studies concluded that seniors who were socially isolated had a 1.23 times the risk of developing cardiovascular disease compared to those who were not socially isolated, and the effect was statistically significant (aHR= 1.23; 95% CI= 1.10 to 1.38; p= 0.003). In addition, the elderly who are socially isolated have a risk of dying 1.16 times compared to those who are not socially isolated, and this effect is statistically significant (aHR= 1.16; 95% CI= 1.07 to 1.21; p= 0.003). A meta-analysis of 13 cohort studies concluded that lonely elderly people had a 1.10 times greater risk of developing cardiovascular disease compared to lonely people, and the effect was statistically significant (aHR= 1.10; 95% CI= 1.01 to 1.20; p= 0.003). In addition, lonely elderly people have a risk of dying 1.19 times compared to being lonely, and the effect is statistically significant (aHR= 1.19; 95% CI= 1.02 to 1.39; p= 0.002).Conclusion: Social isolation and loneliness increase the risk of cardiovascular disease and death in elderly.
Keywords: social isolation, loneliness, cardiovascular, death, elderly.
Correspondence:Ayu Novita Wulandari. Masters Program in Public Health, Universitas Sebelas Maret. Jl. Ir. Sutami 36A, Surakarta, Jawa Tengah. Email: ayunovitawulandari98@gmail.com. Mobile: +6282281301325.
LABORATORY OF CONTEMPORANEITY: THE MARCO OF LA BOCA
Authors: Feldman Jonathan
Published: March 2023

0000-0002-3352-7357
FROM “EXHIBITION” TO “LABORATORY”: RETHINKING CURATORIAL PRACTICES THROUGH A DIGITAL EXPERIMENTAL PROJECT. THE CASE STUDY OF #DOLOMITESMUSEUM - LABORATORY OF STORIES
Authors: Lacedelli Stefania , Fazzi Fabiana , Zanetti Chiara , Pompanin Giacomo
Published: March 2023

Digital curation is one of the most experimental areas of museum practice introduced by the digital revolution. A whole new generation of cultural experiences are emerging from the interaction with online spaces and social media platforms, encouraging museums to explore new curatorial approaches. In this paper, we will show how a digital experimental project led to the rethinking of the exhibition format into a more collaborative, interdisciplinary and laboratory approach to museum curation. The case study analysed is Laboratory of Stories, a dynamic participatory archive which was co-designed with a vibrant community of heritage professionals, local communities, and lovers of the Dolomites during a three-year project. An evaluation study combining different qualitative and quantitative methods was implemented to explore the nature of this curatorial practice. A series of key findings emerged from the study: the introduction of new narrative styles and interdisciplinary perspectives; the involvement of different communities in the curatorial process; the shift from a tangible, object-based, to a more intangible, open, and dialogic interpretation of heritage and of knowledge making. The findings show how the ‘laboratory’ metaphor can help museums to embrace the challenges of a participatory, post-digital society, suggesting a novel approach where the co-creation of narratives is at the heart of the curatorial practice.
Synthesis and physicochemical properties of adsorbents based on Li1.33Mn1.67O4
Authors: Ivanets A. I. , Pecheonсka D. V. , Prozorovich V. G. , Kouznetsova T. F.
Published: March 2023

Adsorbents based on binary lithium-manganese oxides with the spinel structure of Li1.33Mn1.67O4 were synthesized by using solid-phase, sol-gel, and hydrothermal methods. The effect of the synthesis methods and calcination temperature on the crystal structure, phase composition, textural characteristics, and morphology of prepared adsorbents was established. It was found that the samples obtained by solid-phase and sol-gel methods and calcined at 600 °C were single-phase (Li1.33Mn1.67O4) while the Mn2O3 trace phase was also obtained only in hydrothermal synthesis. The increase in the average crystallite size and the decrease in the specific surface and the total volume of pores were observed during temperature rise in the range from 400 to 800 °C. The samples prepared by sol-gel and hydrothermal methods after at 600 °C calcination had the highest adsorption efficiency of Li+ ions.