bluuebunny/crossref_metadata_2025 huggingface dataset:
Law enforcement activities of subjects of crime prevention
Authors: Polikarpova Irina Vladimirovna , Zaitseva Olesya Viktorovna
Published: July 2022

The article is devoted to theoretical and applied research of law enforcement activities of subjects of crime prevention. The subject of scientific knowledge are the norms of criminological legislation and subordinate normative legal acts; the practice of implementing these norms by relevant subjects, as well as scientific approaches to theoretical understanding of law enforcement, factors and indicators that allow improving efficiency in the field under consideration. The aim of the work is a comprehensive empirical study of the effectiveness of law enforcement in the field of preventive criminological activity and the development of a specific mechanism for its optimization. The methodological basis of the study was made up of general scientific methods of cognition (logical, system-structural, generalization, analysis, synthesis) and a number of private scientific methods, namely statistical, sociological, nomotetic, based on the author's methodology for calculating qualitative and quantitative indicators of the state of crime and law enforcement activities implemented in the field of crime prevention. The novelty of the work lies in the fact that on the basis of the conducted research, new empirical data were obtained regarding the effectiveness of law enforcement activities of prevention subjects. The results obtained made it possible to identify the reasons for the low productivity of this activity, which should include not only certain contradictions and shortcomings of preventive legislation, but also existing defects in legal implementation techniques, distortions towards formal law enforcement and repressive practices. The main forms and methods of work of subjects of criminological prevention, the level of interaction between various bodies and subjects of crime prevention are analyzed, which made it possible to identify gaps and shortcomings of legal regulation of this activity and to form the main directions for its improvement. The scope of application of the results obtained is the practical activity of the subjects of crime prevention, as well as the conclusions and suggestions obtained can be useful for further improvement of the norms of preventive legislation.
What in store for the Iraqi-American bilateral relations with Biden in the White House?
Authors: Dzhanabi Yakub Sabikh
Published: July 2022

The goal of the research: attempt to find out the most important future options or possible or anticipated scenarios for Iraqi-American relations. Study methodology: the study was conducted on the basis of the descriptive and analytical method , as well as on the basis of the history curriculum that lists the historical background of the differences between Iraq and America. The research problem: Washington and Baghdad are linked by very complex and intertwining bilateral relations, seeing as Washington and Baghdad have been keen over the past years to cooperate along with achieving bilateral interests. At the same time the two countries faced a number of thorny issues that prevented this from being achieved, chiefly the rejection The US military withdrawal from Iraq, and the continuous development of Baghdad’s relations with Tehran, in addition to the continued targeting of US interests in Iraq. The limits of the study: there are the spatial limits of the research Iraq and The United States. The importance of the study: the study is based on the importance and position of Iraq within the Middle East. In addition, there is the fact that the United States is a superpower and thus the strategy and the stances it will take will have far-reaching implications for the future of Iraq. Study results: The Biden administration will seek to begin a new American approach to Iraq; perhaps in the same way as he sought during his tenure as Vice President in the Obama administration.
The activity of the Nehru-Gandhi political dynasty in Modern Indian English-language Historiography (from 1991 to the present)
Authors: Zaitcev Andrei
Published: July 2022

The article analyzes Indian English-language publications devoted to the Nehru-Gandhi dynasty, written and published after 1991, which became a turning point in the history of independent India, this is the subject of this study. The purpose of this work is to determine the nature of scientific assessments of the role of the Nehru-Gandhi dynasty in the political history of India in the second half of the XX century in English-language publications of Indian authors after 1991. The main method used in the work was cultural-anthropological, as it involves the study of the positions of the authors of scientific publications in the formulation of the problem and the selection of arguments in defense of their point of view; the attitude of Indian scientists to the object of research, as well as the identification of political preferences of researchers, the features of scientific schools and trends in historical science that they represent. The relevance of the work is explained by the fact that the Nehru-Gandhi family and currently actively participates in the political life of the Republic of India, still have a significant political influence, holding leadership positions in the Indian National Congress Party. In addition, their political activities in 1947-1991 continue to be the subject of discussion in the scientific and intellectual community of India. The novelty of the work is explained by the insufficient study of Indian historiography devoted to the history of the country after independence in 1947. The main conclusion is that due to the large-scale political changes in India that began after the death of Rajiv Gandhi in 1991, more and more criticism of the political dynasty can be found in the works of Indian specialists, but at the same time there is no consensus in Indian science about the Nehru-Gandhi dynasty at the present time, pluralism of opinions has very wide and polar range. This can be considered the main feature of Indian historiography.
The spread of modern Russian female novel in China
Authors: Jing Ruge
Published: July 2022

The article is devoted to the problem of the spread of Russian female novel in China from the end of the 20th century to the present day. The subject of the study is the translation and publication of modern Russian female writers in China. The purpose of the article is to identify patterns of the spread of modern Russian female novel in Chinese society. Using descriptive, analytical and comparative methods, the author tries to analyze the phenomenon of the spread of Russian female novel in China on the basis of Leo Leventhal's theory of literary communication. The author examines in detail such aspects of the topic as the peculiarities of the periodization of the spread of Russian women's prose in China, the main influencing factors in the distribution process, as well as the evaluation of the works of Russian female writers by the Chinese audience. Many studies discuss the perception of the Chinese audience of the works of such Russian writers as L. E. Ulitskaya, T. N. Tolstaya, but the general pattern of the spread of Russian female novel in China has been little studied. The scientific novelty of this work lies in the fact that it for the first time comprehends the process of the dissemination of the works of Russian female writers in China from the point of view of communication. Chinese Russianists are still the dominant force in the distribution of Russian female literature in China, but as the Chinese reading market of Russian female novel is being formed, the influence of readers is becoming stronger.
The "House of Leaves" and the problem of the postmodern chronotope.
Authors: Novikau Artur Viktorovich
Published: July 2022

In this article, the object of research is a novel by Mark Z. Danilevsky's "House of Leaves" in the context of postmodernism. The subject of the study is the phenomenon of the chronotope in the novel by Mark Z. Danilevsky's "House of Leaves". Special attention is paid to the cultural and historical analysis of the postmodern context and the belonging of Roman Danilevsky to it. A general cross-section of the state of the socio-cultural environment from the moment of publication of the work to the present is given. The analysis of the publications of foreign researchers who have already addressed this topic, and the analysis of their views on the spatio-temporal features of Roman Danilevsky is carried out. The characteristic features of the theories of postmodernism that took shape in the postmodern era in their relationship with the novel "The House of Leaves" are singled out and described separately. By means of a comparative analysis addressed to foreign studies in the field of philosophy, as well as to literary and critical works devoted to the "House of Leaves", an indirect conclusion about the categories of space-time in the novel is formulated. The properties of the "House of Leaves" narrative related to these categories are described: layering, intersection and interaction of various narrative levels of the novel. Based on the study of the features of the chronotope "House of Leaves", the dominants are established, according to which the novel can be attributed to the current of postmodernism. The scientific novelty lies in the description of the author's narrative strategy, which led to the creation of the chronotope of the original type. The question of the future of novels based on the chronotope of the type described in the article continues to be debatable.
Verbalisation of impoliteness in comments of German politicians in Instagram news posts
Authors: Arkhipova Daria Igorevna , Sobyanina Valentina Aleksandrovna
Published: July 2022

This article focuses on the description of impoliteness in computer-mediated communication. The purpose of the study is to identify markers of verbal aggression a way of expressing impoliteness and to analyse the ways in which they are implemented. The material for this study was German-language comments under the Instagram posts of the largest German parties and German politicians who participated in the German Federal Chancellor elections (2021). As the main methods of research were used linguopragmatic and linguocultural types of analysis. In addition, this paper includes a continuous sampling of comments that contain signs of implicit and/or explicit verbal aggression. Then was done a contextual analysis of the selected comments. The analysis revealed that implicit and explicit types of verbal aggression are equally common in the comments under political figures' Instagram posts, and that both types of verbal aggression can be used simultaneously by the authors in the same comment. The most frequent lexical and grammatical means of implementation of verbal aggression were also distinguished. The conclusions drawn during the research can be used in further studies that focus on the peculiarities of realisation of verbal aggression in computer communication as well as in those that focus on speech culture in a computer-mediated communication.
Adaptasi Tanaman Pohpohan (Pilea trinervia Wright) Pada Berbagai Taraf Naungan
Authors: Maulana Erie , Marveldani Marveldani , Budiarti Lina , Dulbari Dulbari
Published: July 2022

Sayuran indigenous yang telah dimanfaatkan oleh masyarakat sebagai bahan pangan dan kesehatan karena mengandung zat gizi yang sangat bermanfaat bagi tubuh seperti vitamin, mineral, dan serat. Salah sayu daerah yang banyak mengembangkan sayuran indigenous adalah Jawa Barat. Interaksi dengan tanaman sayuran indigenous seperti pohpohan menunjukkan bahwa masyarakat peduli terhadap kesehatan. Kemampuan adaptasinya yang luas dan tingginya kandungan nilai gizi membuat tanaman ini layak untuk coba dikembangkan di daerah lain seperti di Lampung. Penelitian ini bertujuan untuk mengetahui kemampuan adaptasi tanaman pohpohan asal Jawa Barat didaerah Lampung. Penelitian dilakukan di Politeknik Negeri Lampung mulai Mei hingga September 2019. Percobaan disusun menggunakan RKTS dengan 5 perlakuan dan 3 ulangan. Perlakuan terdiri dari berbagai tingkat naungan antara lain : N0 (tanpa naungan), N1 (naungan 60%), N2 (naungan 70%), N3 (naungan 75%) dan N4 (naungan 90).Â  Hasil penelitian menunjukkan bahwa tanaman pohpohan mampu beradaptasi dengan baik pada kondisi naungan 60%.
Sistema de ensino:
Authors: Araújo José Marcus Guedes de , Cruz Karla Janayna Mendes , Cirino Maria Reilta Dantas , Souza José Francisco das Chagas
Published: July 2022

Esse artigo objetiva realizar discussão sobre Ensino de Filosofia a partir de fragmentos dos relatos de experiências vivenciadas e registradas durante a atuação em forma de aulas, realizadas por bolsistas do Programa Institucional de Bolsas de Iniciação à Docência – PIBID, Subprojeto PIBID, do Curso de Filosofia, Campus Caicó/UERN. Tais experiências ocorreram em aulas da disciplina de Filosofia, em uma turma do 1º ano do Ensino Médio, numa instituição pública, da cidade de Caicó/RN. Buscaremos perceber a partir das interfaces entre a formação proporcionada pelo referido Subprojeto e os estudos teóricos em O mestre ignorante: cinco lições sobre a emancipação intelectual, de Jacques Rancière (2002), o qual apresenta a compreensão da lógica explicadora como sustentação do Sistema Educacional, as perspectivas de explicação, embrutecimento e emancipação. Tais conceitos nos motivam a pôr em questão o modo e o sentido com que ensinamos, em especial, as energias que nos movem a fazê-lo.
Diagnostic Challenges of Hypertrophic Lupus Erythematosus
Authors: Garcia Natalie , Hill Callie , Jiminez Victoria , Phillips Carlton Blake
Published: July 2022

Hypertrophic lupus erythematosus (HLE) often occurs in the absence of systemic symptoms and can be misdiagnosed as squamous cell carcinoma (SCC) as both appear clinically as erythematous scaling plaques in sun exposed areas and histologically show significant epithelial hyperplasia. No single criterion confidently differentiates HLE from SCC histologically, postulating the need for CD123 immunostaining in evaluating locally recurring, supposed SCCs. We present a woman who presented for evaluation of multiple supposed left lower leg well-differentiated SCCs (wdSCC), that did not resolve following Mohs Micrographic Surgery and other techniques aimed at cancer removal. The lesions improved following intralesional Kenalog injection and showed positive CD123 immonostains, which both led to the diagnosis of HLE.
Tazarotene 0.045% Lotion for Truncal Acne: Efficacy, Safety, and Spreadability
Authors: Kircik Leon , Draelos Zoe , Guenin Eric
Published: July 2022

N/A
Pemanfaatan Lignin Serai Wangi Sebagai Lignin Resorsinol Formaldehida (LRF) Menggunakan Ultrasonic Microwave-Assisted Extraction (UMAE)
Authors: Ramandani Adityas Agung , Shintawati Shintawati , Aji Salomo Pranata , Sunarsi Sunarsi
Published: July 2022

Limbah padat serai wangi mengandung lignin cukup tinggi yang dapat berpotensi untuk dikembangkan menjadi berbagai produk komersial, salah satunya adalah perekat. Tujuan dari penelitian ini adalah untuk mendapatkan kondisi optimum dalam pembuatan lignin resorsinol formaldehida (LRF) dari limbah serai wangi menggunakan metode Ultrasonic Microwave-Assisted Extraction (UMAE). Rancangan percobaan menggunakan response surface methodology (RSM) khususnya Box-Behnken Design (BBD). Variabel bebas dalam riset ini adalah volume NaOH (10, 13 dan 16 mL), waktu reaksi (10, 20 dan 30 menit), dan komposisi perekat (4, 6 dan 8 gram). Hasil penelitian menunjukkan perekat lignin LRF yang dihasilkan memenuhi SNI 06-4567-1998 untuk parameter berat jenis, waktu gelatinisasi, dan sisa penguapan. Daya tahan rekat (delaminasi) LRF yang dihasilkan memenuhi standar JAS 1996 yaitu rata rata 0%.  Kondisi optimum pembuatan LRF dicapai pada penambahan NaOH 15,0561 mL, waktu reaksi 20 menit dan massa lignin 4 gram dengan daya tahan rekat (delaminasi) tertinggi yang dihasilkan 1 %.
Yenilenebilir enerjide Türkiye'nin dünyadaki yeri ve uygulanan teşviklerin değerlendirilmesi
Authors: ŞENCAN Derya
Published: July 2022

Enerji, günümüzde dünya ülkelerinin en önemli sorunlarından biri haline gelmiştir. Bilindiği gibi kömür, petrol gibi enerji kaynaklarının ömürleri sınırlıdır. Ayrıca fosil yakıtların kullanılması nedeniyle küresel ısınmanın her geçen gün arttığı bir gerçektir. Bu yüzden enerji ihtiyacımız için alternatif çözümler bulunmalı ve yenilenebilir enerji kaynaklarından daha fazla yararlanılmalıdır.

Yenilenebilir enerji, sürekli yenilenen doğal süreçlerden elde edilir. Güneş, rüzgar, okyanus, hidroelektrik, biyokütle, jeotermal kaynaklar ve biyoyakıtlardan üretilebilen yenilenebilir enerji; elektrik üretimi, ısıtma/soğutma, ulaşım gibi alanlarda enerji sağlar. Yenilenebilir enerji sistemleri günümüzde hızla daha verimli ve ucuz hale gelmekte ve toplam enerji tüketimindeki payları artmaktadır.

Dünyada birçok ülkede yenilenebilir enerji kullanımının teşvik edilmesi için tarife garantisi, gelir vergisi, KDV, gümrük vergisi ve ithalat vergisi istisnası ve araştırma geliştirme (Ar-Ge) harcamaları indirimi, hatta bazı ülkelerde karbon vergisi gibi çeşitli vergi teşvik politikaları uygulanmaktadır. Bu çalışmada, dünyada ve Türkiye'de hızla artan yenilenebilir enerji sektöründeki son gelişmeler değerlendirilmiştir. Bu doğrultuda öncelikle sürdürülebilir, enerji tasarruflu ve çevre dostu yenilenebilir enerji sistemleri ele alınmış ve son yıllarda Türkiye ile dünyadaki gelişimi incelenmiştir. Daha sonra Türkiye'deki yenilenebilir enerji sistemlerinde uygulanmakta olan vergisel ve diğer teşvikler ayrıntılı olarak incelenmiş ve değerlendirmelerde bulunulmuştur.
Förderung von Selbst- und Methodenkompetenz im digitalen Biomechanikpraktikum
Authors: Kruppke Benjamin
Published: July 2022

Mit der Anpassung der Hochschullehre an den digitalen Raum wurden verschiedene Konzepte für Vorlesungs- und Seminarformate entwickelt, umgesetzt und evaluiert. Besondere Aufmerksamkeit wird deshalb nun Formaten gewidmet, deren Fokus auf praktische Lernerfahrungen gerichtet ist. Es ergibt sich ein Widerspruch aus dem Vorhaben Praktikumsveranstaltungen in den digitalen Raum zu verlegen, was im Folgenden durch die Erläuterung bisheriger Praktika in der Professur für Biomaterialien der Technischen Universität Dresden verdeutlicht wird.
Aufbauend auf dieser Betrachtung wurde eine Lernwerkstatt zum Thema „Biomechanik im Alltag“ unter Berücksichtigung der Limitationen und Möglichkeiten des digitalen Raumes entwickelt. Das Ziel der digitalen Lernwerkstatt ist eine kompetenzorientierte praktische Lernerfahrung zum Erwerb von Selbst- und Methodenkompetenz, im Vergleich zur Fachkompetenz-getriebenen Präsenzlehre. Die Lernwerkstatt wurde im Modul Werkstoffwissenschaft (2. Semester) als synchron-digitales Praktikum mit asynchronen Aktivitätsphasen durchgeführt. Zunächst wird die an Projektmanagementansätze angelehnte Durchführung der Lernwerkstatt erläutert. Daraus ergab sich eine individuell vollzogene Projektbearbeitung durch die Studierenden. Die abschließenden Erkenntnisse aus der Betreuung des Lehrformates führen zum Ausblick auf eine Lehrveranstaltung, die die Elemente des Projektmanagements mit den Fachinhalten verknüpft.
Umsetzung eines synchronen Übungsformats in der digitalen Lehre zweier Lehrveranstaltungen
Authors: Bernstein David , Bieber Jonas , Beitelschmidt Michael
Published: July 2022

Die Corona-Pandemie hat in den Jahren 2020/21 einen weitreichenden Einfluss auf die universitäre Lehre gehabt. Während es bei der Digitalisierung von Vorlesungen sogar mitunter möglich ist, eine verbesserte Wissensvermittlung im Vergleich zur Lehre in Präsenz zu erreichen, resultieren aus vielen Formaten des digitalen Übungsbetriebes deutlich Nachteile für die Studierenden [1,2]. In Ingenieurstudien-gängen sind aber gerade Übungen ein wichtiger Bestandteil der Stoffvermittlung, da hier auf individuelle Missverständnisse im Stoffverständnis eingegangen werden kann. Zudem gehören auch haptische Erfahrungen zu den wichtigen Lehrinhalten in der Ingenieurausbildung.
Dieser Beitrag behandelt die Umsetzung eines synchronen Übungsformats in zwei Lehrveranstaltungen.
Solution of planimetric tasks by oral operation
Authors: Жданова О.К. , Яковлева Т.П.
Published: July 2022

В статье приведены различные подходы к понятию устная работа, устные упражнения, задача; рассматривается методика решения планиметрических задач посредством устной работы. Материалы статьи можно применять при обучении математике, при подготовке к ОГЭ, ЕГЭ по математике

The article presents various approaches to the concept of oral work, oral exercises, task. The methodology for solving planimetric problems through oral work is considered. The materials of the article can be used in teaching mathematics, in preparation for the exam, exam in mathematics.
Development of a training robot for classes in educational robotics in special schools
Authors: Рязанцев А.Е. , Гринченко М.Р. , Редутов Е.В.
Published: July 2022

В статье обозначена проблема исследования, связанная с поиском оптимальных путей воспитания, обучения детей с ограниченными возможностями здоровья. Высказывается идея использования робота-манипулятора на занятиях по образовательной робототехнике в коррекционной школе. Приводится подробный алгоритм монтажа учебного робота-манипулятора. Описан один из способов участия детей с нарушениями опорнодвигательного аппарата в занятиях по образовательной робототехнике. Кратко описаны учебные занятия с использованием робота-манипулятора. Предлагается использовать соревновательный подход на занятиях по образовательной робототехнике в коррекционной школе.

The article outlines the research problem associated with the search for optimal ways of education and training of children with disabilities. The idea is expressed of using a robotic arm in educational robotics classes at a correctional school. A detailed installation algorithm for the training robot manipulator is given. One of the ways of participation of children with disorders of the musculoskeletal system in educational robotics is described. Briefly described training sessions using a robotic arm. It is proposed to use a competitive approach in educational robotics classes at a correctional school.
Development of a methodology for studying the concept of «Liter»in the elementary course in mathematics
Authors: Яковлева Т.П.
Published: July 2022

В статье приведена методика проведения урока математики по теме «Литр». Подробно разработаны основные этапы обучения, широко используются наглядность, исторические сведения, занимательные задания. Конспект урока можно применить при изучении математики в первом или во втором классе

The article presents various approaches to the concept of oral work, oral exercises, task. The methodology for solving planimetric problems through oral work is considered. The materials of the article can be used in teaching mathematics, in preparation for the exam, exam in mathematics.
The inverse problem for a mixed loaded equation with the Riemann-Liouville operator in a rectangular domain
Authors: Убайдуллаев У.Ш.
Published: July 2022

В данной работе изучается обратная задача для смешанного нагруженного уравнения с оператором Римана-Лиувилля в прямоугольной области. Установлен критерий единственности. Построено решение задачи в виде суммы ряда по собственным функциям соответствующей одномерной спектральной задачи. Доказано, что однозначная разрешимость обратной задачи существенным образом зависит от выбора границы прямоугольной области. Построен пример, в котором обратная задача с однородными условиями имеет нетривиальное решение. Получены оценки, позволяющие обоснование сходимости рядов в классе регулярных решений данного уравнения и устойчивость решения обратной задачи от граничных данных.

In this paper, we study the inverse problem for a mixed loaded equation with the Riemann-Liouville and Caputo operator in a rectangular domain. A criterion for the uniqueness and existence of a solution to the inverse problem is established. The solution of the problem is constructed in the form of the sum of a series of eigenfunctions of the corresponding one-dimensional spectral problem. It is proved that the unique solvability of the inverse problem substantially depends on the choice of the boundary of a rectangular region. An example is constructed in which the inverse problem with homogeneous conditions has a nontrivial solution. Estimates are obtained that allow substantiating the convergence of series in the class of regular solutions of this equation and the stability of the solution of the inverse problem from boundary data.
Geoelectric section of the Pauzhetskaya hydrothermal system (southern Kamchatka) according to magnetotelluric sounding
Authors: Клементьев М.А. , Логинов В.А.
Published: July 2022

Проведены геофизические исследования методом магнитотеллурического зондирования на территории Паужесткой гидротермальной системы с целью изучения ее строения. Выполнено численное двумерное моделирование. Выделен проводящий горизонт с низким удельным электрическим сопротивлением.

Geophysical studies have been carried out using the magnetotelluric sounding method in the territory of the Pauzhetskaya hydrothermal system in order to study its structure. Twodimensional magnetotelluric inverse is performed. A conductive horizon with low electrical resistivity is highlighted.
Preliminary results of works in the area of Bolshe-Bannoe hydrothermal system by methods of magnetoteluric sensing
Authors: Новиков Ю.В. , Логинов В.А.
Published: July 2022

Проведены геофизические исследования методами магнитотеллурического (МТЗ) и аудиомагнитотеллурического (АМТЗ) зондирований на территории Больше-Банной гидротермальной системы. Выполнена обработка совместно с данными полученными в ходе работ в 2015 г, что позволило уточнить структуру электропроводности района работ

Geophysical studies were carried out using magnetotelluric (MTZ) and audiomagnetotelluric (AMTZ) methods on the territory of the Bolshe-Bannoe hydrothermal system. Processing was carried out together with the data obtained during the work in 2015, which made it possible to clarify the structure of the electrical conductivity of the work area.
Random walk software generation
Authors: Царев А.Д.
Published: July 2022

Разработка программных генераторов расчета случайных величин соответсвующих основным угловым распределениям на окружности, фрактальных броуновских движений (ФБД) на окружности, поверхности и сфере с применением численных методов, метода обратной функции и спектрального метода фильтрации ФБД.

The development of programmatic generators for random variables calculation which are corresponding to the main angular distributions on circle, for random variables of fractional Brownian motion (FBM) on circle, on surface and on sphere by means of numerical methods, inverse function method and spectral method of FBM filtration.
About geophysical inverse problem from the point of view of Strakhov’s ideas
Authors: Александров П.Н. , Забинякова О.Б.
Published: July 2022

Рассматривается решение обратных задач магнитотеллурического зондирования (МТЗ) в аспекте развития идей В.Н. Страхова, заключающихся в решении обратных геофизических задач без решения соответствующих прямых задач. Для этого достаточно знание оператора, которому подчиняется соответствующее поле, в том числе и магнитотеллурический импеданс. Важнейшим результатом этого подхода является возможность решения обратных задач в случае анизотропных и бианизотропных моделей геологической среды, в то время как использование метода решения таких обратных задач по А.Н. Тихонову сталкивается с трудностями минимизации функционала невязки в связи с увеличением количества неизвестных электромагнитных параметров, подлежащих определению, что приводит к неустойчивости и неоднозначности интерпретации данных МТЗ. Получены уравнения Риккати для магнитотеллурического импеданса и адмитанса для бианизотропных сред, как наиболее общих линейных электромагнитных свойств горных пород и материалов. Проведены численные эксперименты, результаты которых подтверждают возможность применения идей В.Н. Страхова к решению обратных задач МТЗ. Дальнейшее развитие данного подхода сопряжено с решением некорректных задач в силу наличия различного рода помех в экспериментальных данных.

The approach of magnetotelluric sounding (MTS) inverse problems solving is considered in the aspect of V.N. Strakhov’s ideas development and is based on solving of inverse geophysical problems without the corresponding forward problems solutions. For this aim it is sufficient to know mathematical operator which describes the corresponding field, including magnetotelluric impedance. The most important result of this approach is the possibility of inverse problems solving for anisotropic and bianisotropic models of the geological medium, while the usage of the method of solving inverse problems according to A.N. Tikhonov encounters difficulties in minimizing the residual functional due to an increase in the number of unknown electromagnetic parameters wanted to be determined, and leads to instability and ambiguity in the interpretation of MT-data. Riccati equations for magnetotelluric impedance and admittance (the most common linear electromagnetic properties of rocks and materials) for bianisotropic medium are obtained. Received results of numerical experiments confirm the possibility of applying V.N. Strakhov’s ideas for MTS inverse problems solving. Further development of this approach is associated with the incorrect problems solving due to the presence of various kinds of experimental data noises.
PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK ELEKTRONIK (E-LKPD) PEMBELAJARAN PROYEK BERBASIS LITERASI SAINS PADA MATERI PENCEMARAN LINGKUNGAN
Authors: Shaleha Ummi , Hairida Hairida , Melati Husna Amalya
Published: July 2022

The aim of this research was to determine the feasibility of the Electronic Student Worksheet (e-LKPD) based on science literacy for project learning on environmental pollution. This research employed a research and development (R&D) form which refers to the stages of development according to Borg & Gall. The science literacy-based e-LKPD was tested to 9 students of SMPN 3 Pontianak in the initial trial. In the main trial, the e-LKPD was tested to 36 students from three schools which are SMPN 2 Pontianak, SMPN 3 Pontianak and SMPN 4 Pontianak. The instruments for data collection were the feasibility assessment sheet and students’ response questionnaire. The result of data analysis showed that e-LKPD in terms of content, presentation, language and media with 96.8%; 98.2%; 94.4%; and 88.8% respectively. All of these percentages are categorized as very high criteria. The averaged percentage of students’ response on the initial trial and the main trial are 81.6% and 83.9% which categorized as very high criteria. Therefore, e-LKPD is feasible to be used in learning projects based on science literacy on environment pollution topic.Keywords: Science literacy, project based learning.
PENGEMBANGAN ELEKTRONIK LEMBAR KERJA PESERTA DIDIK BERBASIS PROJECT BASED LEARNING PADA MATERI BENTUK MOLEKUL
Authors: Sapriyanti Ulfa , Melati Husna Amalya , Hadi Lukman
Published: July 2022

The aims of this research were to determine the feasibility of Development Electronic Worksheet (e-worksheet) based on Project Based Learning on geometry molecule by the results of expert judgments and student responses on the results of field trials. The form of this research is research and development (R&D) which adopts Kemp's development model. The subject of this research was Electronic Worksheet (e-worksheet) based on Project Based Learning on geometry molecule which was tested at 27 students of SMAN 10 Pontianak. The instruments of data collections were the feasibility questionnaire and student response questionnaire. The results of data processing showed that the e-worksheet that developed was suitable for use in learning in terms of the percentage of content material, presentment, linguistic, and media respectively 96.6%; 96.8%; 90.2% and 86.1%. The result percentage of the calculation student questionnaire responses to the material aspects was 83.33%, 79.31%  to linguistic aspects and graphical aspects was 89.50%. Based on the average of the three aspects of student responses, it was found that the percentage of e-worksheet based on Project Based Learning on geometry molecule subject was 84.04%, which was included in the very high category.
PENGEMBANGAN LKPD BERBASIS PROYEK PADA MATERI LARUTAN ELEKTROLIT DAN NONELEKTROLIT DI SMA MUHAMMADIYAH 1 PONTIANAK
Authors: Apriyani Apriyani , Masriani Masriani , Melati Husna Amalya
Published: July 2022

Tujuan dari penelitian ini adalah untuk menentukan tingkat kelayakan Lembar Pelajar Berdasarkan Proyek (LKPD) pada topik Solusi Elektrolit dan Non-Elektrolit yang dikembangkan berdasarkan hasil penelitian ahli dan penghargaan siswa pada uji coba lapangan. Penelitian dan Pengembangan (R&D) dari Borg dan Gall diadopsi dalam proyek ini. Subjek penelitian ini adalah LKPD berbasis proyek yang diujicobakan kepada 15 siswa dan 34 siswa dalam uji coba awal dan uji coba utama, semuanya berada di kelas X SMA Muhammadiyah 1 Pontianak. Instrumen untuk mengumpulkan data adalah kuesioner tentang kelayakan dan respons kuesioner siswa. Berdasarkan analisis data, LKPD yang dikembangkan sangat layak untuk digunakan dalam pembelajaran dalam hal persentase konten, presentasi, bahasa dan grafik dengan 94,4%;97,8%; 86; dan 83. Masing-masing 9%. Hasil kuesioner tanggapan siswa dalam uji coba lapangan awal adalah 81,7% dan dalam uji coba lapangan utama adalah 82,6%. Hasil ini menunjukkan bahwa respons siswa terhadap topik LKPD Berbasis Proyek dikategorikan sangat tinggi yang berarti bahwa LKPD yang dikembangkan dapat digunakan untuk membantu siswa belajar tentang Solusi Elektrolit dan Non-Elektrolit.
PEMBUATAN PERANGKAT KOTAK INSTRUMEN TERPADU (KIT) PRAKTIKUM PADA MATERI INDIKATOR ASAM DAN BASA
Authors: Khairunnisa Fatin , Muharini Rini , Melati Husna Amalya
Published: July 2022

The aim of this study is to discover the adequacy of Practicum toolkit box on acid and bases subject that was developed based on the adequacy assessment by expert and teachers and students’ responses. The subject of this study was acid and bases Practicum KIT that was tested to 10 students of SMPN 2 Selakau in an initial field test and also to 36 students from 3 middle schools (SMP) in amain field test, and, furthermore, five science teachers in the main field test from the same three schools. Evaluation sheet of the KIT adequacy and questionnaire were used for data-collection. The result of data processing showed the KIT that was developed is acceptable to be used in learning process through the standards of material, language, graphic, and KIT media with validity coefficient score 1. Moreover, on the report of percentages calculation of questionnaire, the result of student questionnaires in the initial field test and main field test had collected the average of percentages, which were 82.62% and 87.27% with a very high criteria, and for the teacher questionnaires, the number of the average of percentages was 91.77% with a very high criteria as well.
PENGEMBANGAN LKPD BERBASIS SCIENCE, ENVIRONMENT, TECHNOLOGY, AND SOCIETY MATERI LARUTAN PENYANGGA DI SMAN 1 SUNGAI RAYA
Authors: Harpiyani Pinta Rini , Masriani Masriani , Rasmawan Rahmat
Published: July 2022

AbstractThis study aims was to produce student worksheets based on science, environment, technology and society which are developed based on the results of expert assessments and students' responses based on the results of field trials. This form of research and development (R&D) adopts the ADDIE development model. The subjects of this study were student worksheets based science, environment, technology and society that was tested on class XII MIA students at SMAN 1 Sungai Raya. Data collection instruments used were the validation sheets and students response questionnaires on the product developed. The result of the expert validation (expert judgement) obtained that the interpretation is very proper in terms of aspects of content advisability, presentation advisability, linguistic advisability, and graphic advisability with consecutive total scores of 89.7%, 92.7%, 92.7%, and 87.3% respectively. The results of the student’s responses in initial field trials of 88.4% with very high category and in main field trials of 89.7% in very high category.                                       Keyword : Student Worksheets, SETS Based, Buffer Solution, Feasibility, Student’s Response.
PENGEMBANGAN PENUNTUN PRAKTIKUM ADSORBSI ISOTERM MELALUI PEMANFAATAN LIMBAH KULIT PISANG SEBAGAI ADSORBEN PADA PRAKTIKUM KINETIKA KIMIA
Authors: Maulani Indra , Melati Husna Amalya , Hadi Lukman
Published: July 2022

This research aimed to produce practical guiding products that are suitable for use and to know the students' responses to the products developed. Research & Development (R&D) was used as a form of research which was referred to the 4D model by Thiagarajan, but the implementation of the model just limited a 3D level. Subject tested the students of Chemistry Education FKIP Untan who had taken kinetics chemistry courses. Data collection tools used were validation sheets and student response questionnaires on the product developed. The results of the expert judgement obtained interpretation is very feasible in terms of aspects of content feasibility, presentation feasibility, linguistic feasibility, and graphic feasibility with consecutive total scores is 97%, 95%, 96%, and 96%. Students' responses to the results of small group trials were 81% with high interpretation and in large group, trials were 81% with very high interpretation.
KELAYAKAN DAN RESPON SISWA SMK PGRI PONTIANAK TERHADAP PENGEMBANGAN MODUL TATA NAMA SENYAWA KIMIA ANORGANIK SEDERHANA
Authors: Irawan Dedi , Muharini Rini , Lestari Ira
Published: July 2022

The development research of the Simple Inorganic Chemical Compound Nomenclature Module aimed to determine the level of feasability and response of students toward the module that was developed. The form of research used was Research and Development (R&D) adopted the Jerrold Kemp development model. The technique for selecting this research sample was random sampling to 30 students of SMK PGRI Pontianak. The instrument of data collection used, namely a sheet of feasability assessment and student questionnaire responses. The results of data analysis showed that the Simple  Inorganic Chemical Compound Nomenclature Module was very feasible (88,05%). Students respond toward the Simple Inorganic Chemical Compound Nomenclature Module was relatively good (72,54%). The results of the advisability assessment and student questionnaire response showed that the ‘‘Simple Inorganic Chemical Compound Nomenclature Module’’ was very feasible to use in the learning process.
ANALISIS POLA KOMUNIKASI MENGGUNAKAN MODEL VICS FLANDERS DALAM PEMBELAJARAN KIMIA DI SMA NEGERI 1 SUNGAI RAYA
Authors: Prastyca Gilang , Hairida Hairida , Ulfah Maria
Published: July 2022

Communication is the process of delivering messages from the communicator (source) to the communicant (receiver) through certain media to produce certain effects or goals by expecting feedback or reciprocity. The purpose of this study was to analyze the communication patterns carried out in chemistry learning at SMA Negeri 1 Sungai Raya. This research uses a descriptive method. The research subjects were chemistry subject teachers and students of class XI IPA 3 and XI IPA 4 SMA Negeri 1 Sungai Raya in the 2019/2020 school year. The instrument used to analyze teacher and student communication patterns is Matrix verbal interaction category system (VICS) Flander developed by Amidon and Hunter. The results showed that the communication patterns that occur are one-way communication patterns in which communication patterns are still discussed by the subject teacher
Description of Self Efficacy Students SMA Muhammadiyah 1 Pontianak in Chemistry
Authors: Marlina Marlina
Published: July 2022

The aims of this research are to give description of student’s self efficacy SMA Muhammadiyah 1 Pontianak in chemistry. The research method that used in this study is descriptive which is quantitative. The subject of this research were 29 students in class XI IPA 2 SMA Muhammadiyah 1 Pontianak. Data collection techniques carried out by indirect communication techniques in the form of questionnaires and direct communication in the form of interviews. The results of the analysis showed that students with high, medium and low self-efficacy were 34.48%, 41.38% and 24.14%, respectively. The results of categorizing self-efficacy indicate that most students already have confidence in their ability to determine and carry out learning activities to achieve the desired target, although there are still some students who have low self-efficacy. The results of the analysis of aspects of self-efficacy, showed that students have a level of learning difficulties, the strength of confidence and broad areas of behavior as much as 49%, 31% and 20%. These results indicate that students have different perceptions in looking at the difficulty of an assignment so students will try to carry out tasks that they think are capable of doing and will avoid situations and conditions that they think are beyond the limits of their abilities.
PENERAPAN MODUL INQUIRI MATERI ZAT ADITIF MAKANAN TERHADAP HASIL BELAJAR SISWA KELAS VIII SMP
Authors: Jumi Jumiarti
Published: July 2022

AbstractThis research was conducted to find out  the difference in learning outcomes of VIII grade students of Kemala Bhayangkari Middle School on food additives taught by using inquiry-based modules and those taught without using inquiry-based modules and  of the effect of inquiry-based modules on student learning outcomes. This research was a conducted using quasi-experimental study with the Nonequivalent Control Group Design research design. The sample in this study was class VIII A as an experimental class and class VIII C as a control class. The data collection technique used was the measurement technique. Data collection tools used were essay-shaped tests. The was Mann Whitney U-test showed that there were differences between the learning outcomes of Grade VIII students of Kemala Bhayangkari Middle School on food additives taught by inquiry-based modules and students taught without using inquiry-based modules Based on Effects Size calculation of 0.97, it was classified as the high category. Learning using inquiry-based modules has an effect of 33.40% on improving student learning outcomes.Keyword :Food additives, learning outcomes, Module based inquiry
PENGEMBANGAN MODUL PEMBELAJARAN BERBASIS PBL PADA MATERI TERMOKIMIA KELAS XI SMA NEGERI 2 PONTIANAK
Authors: Yona Mutiara , Hairida Hairida , Sahputra Rachmat
Published: July 2022

This study aims to determine the feasibility and responses of a students to modules based learning on problem based learning on thermochemical material class XI of SMA Negeri 2 Pontianak. The form of the research was research and development. The research model used is ADDIE research model. The subject of this research is problem based learning (PBL) based learning modules on thermochemical materials with group trials and large group trials. Data collection instrument that was used were feasibility assessment sheet and student response quetionnaire. The results of the conclusion of the feasibility of the learning module based on learning problems have a very decent level of eligibility (92.55%) which is approved from the aspects of the feasibility of content, presentation, language and graphics. The result of the small group student responses test showed very good criteria (82.78%) and the large group student response test showed very good criteria (86.58%). Thus, the problem based learning module based on class XI thermochemical material of SMA Negeri 2 Pontianak is very suitable to be used as teaching material and gets students' responses with very good criteria.
Carbon dioxide fixation in RuBisCO is protonation state dependent and irreversible
Authors: Douglas-Gallardo Oscar , Murillo Juliana , Oller Javier , Mulholland Adrian , Vöhringer-Martinez Esteban
Published: July 2022

Most CO2 from the atmosphere is assimilated in photosynthetic organisms by the ribulose 1,5-bisphosphate carboxylase-oxygenase (RuBisCO) enzyme as part of the Calvin cycle. Despite its relevance and many efforts in the last few decades, the mechanistic picture of the catalytic CO2 fixation reaction is still under debate. Here, we combine QM/MM molecular dynamics simulations with high-level electronic structure methods and the projector-embedding approach to provide reference values for the activation and reaction free energies of the catalytic CO2 fixation reaction. Our results show that carboxylation is protonation state dependent and irreversible, making the back reaction (decarboxylation reaction) highly unfavourable. The carbamylated lysine residue, Kcx201, coordinated to the magnesium (II) cation in the active site plays a central role shuffling protons from and to the substrate creating the proper reactive enolate species that adds CO2. The emerging microscopic picture that involves several protonation equilibria and the free energy profile of the CO2 fixation reaction provides insights that may be used in the future to improve enzymatic efficiency in RuBisCO.
G-type Halohydrin Dehalogenases Catalyze Ring Opening Reactions of Cyclic Epoxides with Diverse Anionic Nucleophiles
Authors: Solarczek Jennifer , Kaspar Felix , Bauer Pia , Schallmey Anett
Published: July 2022

Halohydrin dehalogenases are promiscuous biocatalysts, which enable asymmetric ring opening reactions of epoxides with various anionic nucleophiles. However, despite the increasing interest in such asymmetric transformations, the substrate scope of G-type halohydrin dehalogenases toward cyclic epoxides has remained largely unexplored, even though this family is the only one known to display activity with these sterically demanding substrates. Herein, we report on the exploration of the substrate scope of the two G-type halohydrin dehalogenases HheG and HheG2 and a newly identified, more thermostable member of the family, HheG3, with a variety of sterically demanding cyclic epoxides and anionic nucleophiles. This work shows that, in addition to azide and cyanide, these enzymes facilitate ring-opening reactions with cyanate, thiocyanate, formate, and nitrite, significantly expanding the known repertoire of accessible transformations.
Ultrasensitive Surface–Enhanced Raman Spectroscopy Detection by Porous Silver Supraparticles from Self–lubricating Drop Evaporation
Authors: Dabodiya Tulsi Satyavir , Sontti Somasekhara Goud , Wei Zixiang , Lu Qiuyun , Billet Romain , Murugan Arumugam Vadivel , Zhang Xuehua
Published: July 2022

This work demonstrates an original and ultrasensitive approach for Surface-Enhanced Raman Spectroscopy (SERS) detection based on evaporation of self-lubricating drops containing silver supraparticles. The developed method detected an extremely low concentration of analyte that was enriched and concentrated on sensitive SERS sites of the compact supraparticles formed from drop evaporation. A low limit of detection (LOD) of 10-16 M was achieved for a model hydrophobic compound rhodamine 6G (R6G). The quantitative analysis of R6G concentration was obtained from 10-5 M to 10-11 M. In addition, for a model micropollutant in water triclosan, the detection limit of 10-6 M was achieved by using microliter sample solutions. The intensity of SERS detection in our approach was robust to the dispersity of the nanoparticles in the drop but became stronger after a longer drying time. The mechanism underlying the ultrasensitive detection is the sequential process of concentration, extraction, and absorption of the analyte during evaporation of self-lubrication drop and hot spot generation for intensification of SERS signals. This novel approach for sample preparation in ultrasensitive SERS detection can be applied to the detection of chemical and biological signatures in areas such as environment monitoring, food safety, and biomedical diagnostics.