bluuebunny/crossref_metadata_2025 huggingface dataset:
Cultura lúdica na era digital: alguns efeitos no comportamento infantojuvenil
Authors: Fortuna Tânia
Published: August 2019

O fato de que atualmente a maioria dos indivíduos entra em contato com o mundo pela tela do computador ou da televisão determina formas de cognição diversas daquelas que por várias décadas influenciaram nosso modo de pensar, o que incide, obviamente, sobre o comportamento infantojuvenil. Uma breve revisão de algumas abordagens teóricas que identificam nas novas mídias prejuízos e riscos ao desenvolvimento infantojuvenil é apresentada, e, em seguida, analisa-se o que alguns pesquisadores contemporâneos dizem acerca dos benefícios e das vantagens da era digital para o comportamento humano, especialmente o das crianças. Muitas das preocupações que cercam a discussão sobre o comportamento lúdico na contemporaneidade não são novas, não obstante a recente presença da tecnologia digital na sociedade. Conclui com uma reflexão sobre o papel do adulto diante das crianças e dos jovens em relação à cultura lúdica na era digital.
Transposisi pada Penerjemahan Adjektiva Bahasa Rusia ke dalam Bahasa Indonesia
Authors: Gumilar Trisna , Karyaningsih Tri Yulianty , Ladinata Ladinata
Published: August 2019

Transposisi pada penerjemahan tidak dapat dihindari karena pada setiap bahasa, bahkan pada unit-unit bahasa, terdapat sistem yang berbeda, seperti pada adjektivabahasa Rusia dan Indonesia. Untuk itu, dalam penelitian ini dibahas mengenai berbagai macam transposisi yang terjadi pada penerjemahan adjektiva bahasa Rusia ke dalam bahasa Indonesia serta alasan terjadinya transposisi tersebut. Metode yang digunakan dalam penelitian ini adalah metode deskriptif-kualitatif dengan model komparatif. Sumber data penelitian diambil dari cerpen Rusia dan terjemahannya dalam bahasa Indonesia. Hasil penelitian menunjukkan bahwa pada penerjemahan adjektiva bahasa Rusia ke dalam bahasa Indonesia terjadi transposisi level dan kategori berupa struktur, unit, kelas, dan intra-sistem. Beragam transposisi ini pada dasarnya terjadi karena adjektiva bahasa Rusia dan Indonesia, secara gramatikal, memiliki banyak perbedaan. Transpositions or shifts in translation cannot be avoided since in each language, even in language units, there are different systems, such as in Russian and Indonesian adjectives. Therefore, this study discussed the various types of transpositions in translation of Russian adjectives into Indonesian and the reasons for this transposition. The method used in this study is a qualitative-descriptive method with a comparative model. The source of the data is taken from Russian short stories and its translation in Indonesian. The results of the study showed that in translation of Russian adjectives into Indonesian there were level shifts and category shifts, viz. structures, units, classes, and inter-systems. These various transpositions basically occur because the adjectives in Russian and Indonesian have many differences grammatically.
Antara Mitos dan Realitas: Historisitas Maung di Tatar Sunda
Authors: Gustaman Budi , Khoeruman Hilman Fauzia
Published: August 2019

Secara kultural, masyarakat Sunda cukup akrab dengan maung (harimau). Maung adalah sebutan khusus untuk harimau di wilayah Tatar Sunda. Maung direpresentasikan secara khusus sebagai simbol kekuatan. Simbolisasi maung tercermin dalam beberapa identitas kekinian, seperti pada julukan klub sepak bola terbesar di Jawa Barat, Persib “maung” Bandung serta pengadopsian secara visual sebagai lambang Divisi Siliwangi, satuan militer wilayah Jawa Barat. Di balik pemaknaan itu, terdapat jejak-jejak historis yang menyebabkan begitu lekatnya maung dalam benak masyarakat Sunda. Penelitian ini berusaha untuk menelusuri maung dalam bingkai mitos dan juga ekologis. Di Tatar Sunda tersebar mitos-mitos terkait harimau yang disampaikan secara lisan dan tulisan (naskah). Selain itu, jejak maung pun banyak pula ditulis pada sumber-sumber kolonial, seperti arsip, koran, hingga roman. Secara umum, maung mencerminkan mentalitas kultural masyarakat Sunda, yang pemaknaannya menjadi penghubung antara mitos dan realitas. Sundanese people are quite familiar with maung (tiger). Maung is a special name for tigers in the Tatar Sunda. Maung is represented as a symbol of strength. The symbolization of maung is reflected in several contemporary identities, such as the nickname of the biggest football club in West Java, Persib "maung" Bandung. Moreover, it is adopted visually as a symbol of military unit in the West Java region, Divisi Siliwangi. Behind the meaning, many historical traces which cause the  existence of maung in the minds of the Sundanese people. This research seeks to explore the mythical and ecological framework. In Tatar Sunda scattered myths related to tigers that were delivered orally and in manuscript. In addition, many traces of Maung were also written in colonial sources, such as archives, newspapers, and romances. In general, it reflects the cultural mentality of Sundanese society, whose meaning is the link between myth and reality.
Dualisme Pelestarian dan Pengembangan Musik Keroncong pada Tahun 1970-an
Authors: Mulyadi Raden Muhammad , Indira Dian
Published: August 2019

Keroncong merupakan suatu genre musik yang khas Indonesia, keberadaanya selalu dikaitkan dengan statusnya sebagai salah satu warisan seni budaya bangsa Indonesia yang perlu dilestarikan. Selain perlu dilestarikan, para penggiat keroncong dan pemerintah pun menganggap perlu mengembangkan keroncong dalam segi musik maupun perluasan peminatnya, khususnya di kalangan generasi muda. Penelitian ini memperlihatkan popularitas keroncong yang sudah menurun sejak akhir tahun 1960-an bahkan pada tahun 1970-an keroncong sudah dinyatakan harus diselamatkan atau dilestarikan. Perkembangan keroncong terhambat oleh semangat pelestarian musik tersebut. Pelestarian keroncong terhambat oleh pakem-pakem yang ditentukan oleh para tokoh senior musik tersebut. Pakem-pakem keroncong merupakan suatu bentuk hegemoni para tokoh senior keroncong untuk memberi batasan keroncong yang baik dan benar menurut versi mereka. Pada satu sisi, pakem-pakem dalam keroncong telah dapat menjaga kelestarian keroncong, sementara pada sisi lainnya tidak berhasil mengembangkan keroncong kepada peminat yang lebih luas.  Keroncong is a music genre that is typical of Indonesia, its existence is always associated with its status as one of the Indonesian cultural arts heritage that needs to be preserved. Besides needing to be preserved, keroncong activists and the government also consider it necessary to develop keroncong in terms of music and the expansion of their interests, especially among the younger generation. This study examine that the popularity of keroncong which has declined since the late 1960s even in the 1970s that keroncong has been declared to be saved or preserved. Keroncong development is hampered by the spirit of preservation of the music. Keroncong conservation is hampered by the standards determined by the senior figures of the music. Pakem-pakem (standards) keroncong is a form of hegemony of senior keroncong figures to limit the keroncong to good and correct according to their version. On the one hand, the features in keroncong have been able to preserve keroncong, while on the other hand they have not succeeded in developing keroncong for wider interested ones.
Initiating an Outcome-Based Education Environment at a Higher Education Institution: A Case Study
Authors: Sallow Amira B. , Abdlqader Muaid , Tawfiq Nada E. , Shallal Mohammed A.
Published: August 2019

The paper presents a brief account of a case study reflecting steps that may be found useful as guidelines for initiating an outcome-based education (OBE) environment for programs at a higher education institution (HEI). It highlights the broad steps in the process of establishing a framework for a curriculum of an undergraduate program in light of current trends, with suggestions that may be helpful in paving the way for a HEI to follow, should such an aim be desired. A sample of a computer science (CMSC) program is used as an example to illustrate the steps followed in accordance with relevant academic accreditation criteria and quality assurance (QA) standards.
Simulasi Kendali Motor DC Penguat Terpisah Menggunakan Kendali Fuzzy-FOPID
Authors: Asbi Muhamad , Subiyanto Subiyanto , Primadiyono Yohanes
Published: August 2019

In this study, Fuzzy-Fractional Order Proportional Integral Derivative (Fuzzy-FOPID) control technique is applied to regulate the speed of a separately excited DC motor. This control technique uses a combination of two intelligent algorithm tuning methods, Fuzzy logic and Genetic Algorithm (GA). This is done to get an effective and powerful control effect. The identification of parameters in the form of Kp, Ki and Kd uses fuzzy logic and for fractional parameters in the form of μ and λ using GA. To find out the performance of this control technique several tests have been carried out using the MATLAB 2013a simulation which then the results are compared with Fractional-Order PID (FOPID) control technique where all parameters are obtained using GA tuning. In testing the speed and constant load the performance of the Fuzzy-FOPID control has a smaller overshoot value and the settling time is faster than the FOPID control. The FOPID driver has a better undershoot response of 0,25% when there is a change in the added load. But when testing the speed change, Fuzzy-FOPID control has a fast and stable response with an undershoot value of 0.875% and a 0.143% overshoot, smaller than the FOPID control. From the results of all tests, it can be concluded that Fuzzy-FOPID control is better and more efficient than FOPID control.Dalam penelitian ini, teknik kendali Fuzzy-Fractional Order Proportional-Integral-Derivative (Fuzzy-FOPID) diterapkan untuk mengatur kecepatan motor DC penguat terpisah. Teknik kendali ini menggunakan gabungan dua metode penalaan algoritma cerdas yaitu logika fuzzy dan Algoritma Genetika (GA). Hal ini dilakukan untuk mendapatkan efek kendali yang efektif dan kuat. Penalaan  parameter Kp, Ki, dan Kd menggunakan logika fuzzy dan untuk parameter fractional μ dan λ menggunakan GA. Untuk mengetahui kinerja dari teknik kendali ini telah dilakukan beberapa tes menggunakan simulasi MATLAB 2013a yang kemudian hasilnya dibandingkan dengan teknik kendali lain yaitu teknik kendali FOPID dimana semua parameternya didapat dengan menggunakan penalaan GA. Pada pengujian kecepatan dan beban konstan performa kendali Fuzzy-FOPID memiliki nilai overshoot yang lebih kecil dan settling time lebih cepat dibanding kendali FOPID. Pengendali FOPID memiliki respon undershoot yang lebih baik sebesar 0,25 % ketika tejadi  penambahan  beban. Namun ketika dilakukan pengujian perubahan kecepatan, kendali Fuzzy-FOPID memiliki respon yang cepat stabil dengan nilai undershoot 0,875 % dan overshoot 0,143%, lebih kecil dibandingkan dengan kendali FOPID. Dari hasil seluruh pengujian dapat disimpulkan bahwa kendali Fuzzy-FOPID lebih baik dan effisien dibandingkan dengan kendali FOPID.
Sistem Pengunci Multi Pintu dengan Mikrokontroler Arduino Mega 2560 R3
Authors: Permadi I Putu Bagus Eka , Gumelar Agustinus Bimo , Widodo Agung
Published: August 2019

This research aims to make an Internet of Things (IoT) system function to lock and unlock more than one door simultaneously. IoT is a concept that uses the internet to control many hardware devices. Every hardware in an IoT circuit can communicate with each other; giving and taking orders. In this study, solenoid door lock functioned as the hardware to lock and unlock doors simultaneously, from a remote control system. The selected Arduino Mega 2560 R3as the control system center, is connected to the internet using the ESP8266 Wi-Fi module. The result of this research can be seen that Arduino Mega 2560 R3can open and lock more than one door with a minimal time window.Penelitian ini bertujuan untuk membuat sebuah perangkat sistem Internet of Things (IoT) yang  berfungsi untuk mengunci dan membuka lebih dari satu pintu secara bersamaan. IoT adalah sebuah konsep penggunaan internet untuk mengendalikan banyak perangkat keras. Setiap perangkat keras dalam rangkaian IoT dapat saling berkomunikasi; memberi dan menerima perintah. Dalam penelitian ini, pengunci pintu solenoid difungsikan sebagai perangkat keras untuk mengunci dan membuka kunci pintu secara bersamaan dari pusat sistem kendali jarak jauh. Pusat sistem kendali yang dipilih menggunakan Arduino Mega 2560 R3 (ATMega2560), terhubung dengan internet menggunakan modul Wi-Fi ESP8266. Hasil dari penelitian ini, Arduino Mega2560 R3 dapat membuka dan mengunci lebih dari satu pintu dengan time window yang minimal.
Platform for Integrating and Testing Tools which Transform Natural Language Queries into SPARQL Queries
Authors: Postanogov I. S. , Turova I. A.
Published: August 2019

In the paper we discuss how to support the process of creating tools which transform natural language (NL) queries into SPARQL queries (hereinafter referred to as a transformation tool).
In the introduction, we describe the relevance of the task of understanding natural language queries by information systems, as well as the advantages of using ontologies as a means of representing knowledge for solving this problem.
This ontology-based data access approach can be also used in systems which provide natural language interface to databases. Based on the analysis of problems related to the integration and testing of existing transformation tools, as well as to support the creation and testing own transformation modules, the concept of a software platform that simplifies these tasks is proposed. The platform architecture satisfies the requirements for ease of connecting third party transformation tools, reusing individual modules, as well as integrating the resulting transformation tools into other systems, including testing systems.
The building blocks of the created transformation systems are the individual transformation modules packaged in Docker containers. Program access to each module is carried out using gRPC. Modules loaded into the platform can be built into the transformation pipeline automatically or manually using the built-in third party SciVi data flow diagram editor. Compatibility of individual modules is controlled by automatic analysis of application programming interfaces. The resulting pipeline is combined according to specified data flow into a single multi-container application that can be integrated into other systems, as well as tested on extendable test suites. The expected and actual results of the query transformation are available for viewing in graphical form in the visualization tool developed earlier.
Automatic Refactoring of Java Code Using the Stream API
Authors: Ivanov R. A. , Valeev T. F.
Published: August 2019

For a long time, functional Java programming was not possible. However, lambda expressions appeared in version 8 of the Java language. Due to the support of standard library classes (Stream, Optional, etc.) in Java, it became possible to describe transformations over data in a functional style.
Java is a rather old language with a large imperative code base written in it. In order to take advantage of the new approach, it is necessary to perform a non-trivial refactoring, which can be very tedious and error prone when applied manually.
Fortunately, for a sufficiently large number of situations, this refactoring can be safely performed automatically.
Using IntelliJ Idea as a platform software tool was developed that allows you to find places where it is possible to automatically convert an imperative code to an equivalent code that uses Stream API, as well as an automatic fix that allows you to make a replacement. Refactoring uses IntelliJ Idea framework to analyze Java code, and integrates into the IDE itself.
One of the main criteria for the correct operation of the algorithm is the security of this transformation. The user cannot trust the tool if the transformation can change the semantics of the code.
This article discusses various constraints that are imposed on code patterns so that transformation without distortion of semantics is possible.
Refactoring has been tested in various libraries to verify the semantics are preserved by checking the test results before and after applying refactoring.
This article will not describe the impact of using the Stream API on the performance of the application.
Methodological Aspects for the Use of GIS Tools for Managing the Employment of Graduates
Authors: Kadirova L. A.
Published: August 2019

The purpose of this study is to improve the mechanism of employment of graduates of universities in the field in the region with the use of modern computer technology. Namely, the article discusses the advantages and methodological aspects of using the tools of geographic information systems, which are a symbiosis of the management capabilities of large databases and spatial visualization characteristic of topographic maps by using QGIS A relational database table or a spreadsheet with a geolocation field, which allows data to be placed on a map, represents each information layer. The scientific significance of the article is due to the fact that this technology contributes to the creation of a single information space of the employers market in the context of popular specialties, as well as to the active establishment of cooperation between universities and employers in order to improve the mechanism of employment of graduates on the bases of competence-based approach.
The result of the research is the methodological aspects of the use of open geographic information system QGIS for managing the employment of young professionals. In addition, tasks have been set for the mechanism for applying geo-information technologies in the employment of university graduates.
“Virtual Planetarium” Code for Astrophysical Objects Modeling: Mathematical Model, Methodology and First Results
Authors: Kulikov I. M. , Protasov V. A.
Published: August 2019

The complexity of astrophysical processes lies in simultaneous consideration of components with different nature. So, for example, in the problem of collision of galaxies the three-dimensional dynamics of interstellar gas and stellar component is considered. The modeling of these components could be based on completely different classes of numerical methods. One possible solution to this problem is the use of the Eulerian-Lagrangian approach, in which the physical quantities are concentrated in material points, which is typical for the SPH method, and the calculation of forces is made on an adaptive grid bound to the system of material points. This approach uniformly takes into account both the dynamics of the continuous medium and discrete particles, and also eliminates a number of disadvantages typical for the original method. The calculation of the gravitational interaction is carried out by solving the Poisson equation for the gravitational potential. Herewith, all the particles are projected onto the computational grid and the potential values in each cell are calculated using this grid. The solution of the Poisson equation for the gravitational potential is performed using Fast Fourier Transform. The new “Virtual Planetarium” code for astrophysical objects modeling based on SPH method, supplemented by Godunov method for calculating pressure and momentum flows between particles, and Fast Fourier Transform method to solve the Poisson equation for the gravitational potential, is described in the paper. Rationale for the transition to such numerical model is given in the paper. Kinetic and hydrodynamic approaches are described in detail. The modeling of collapse of an isothermal gas cloud is performed, the ability of the method to reproduce the development of instabilities in the form of the formation of two density sleeves is shown.
Development of IDE for Android Devices
Authors: Lebedev R. K. , Koryakin I. A.
Published: August 2019

Mobile devices are frequently used for educational purposes considering their high availability and portability. However, educational abilities of mobile devices are quite limited due to the lack of proper IDE applications. Most Android integrated development environments for C++ are lacking code completion and real-time code analysis, while others provide these features at unacceptable speeds.
Therefore, we decided to develop a next-generation mobile C++ IDE that will not only have these features, but will also provide them at real-time speeds. This will make mobile devices more suitable for learning C++ and will provide students with an opportunity to leave their laptops at home and to learn C++ in different situations, where usage of laptop is not convent.
In this paper, we describe the software porting technology applied to Clang compiler and other required tools and propose the method to speed up compilation, code completion and code analysis in our IDE. We also propose UI optimization methods. We also describe a regular expression-based heuristic algorithm for precompiled header generation that has small processor time and RAM requirements. The efficiency of the algorithm is tested on different educational code examples.
Our experiments show that our IDE is the only one at the moment, that can keep code completion real-time in all usage scenarios. The performance gain is 300 % average, when STL is used, reaching 3350 % when Boost library is involved. There is a small performance loss when C is used, but it is not significant, as the performance is still acceptable for real-time usage.
Kepastian Hukum Akad Murabahah Pada Jual Beli Rumah Melalui Perbankan Syariah
Authors: Zulfikri Zulfikri
Published: August 2019

Akad murabahah adalah jual-beli barang pada harga asal dengan tambahan keuntungan yang sudah disepakati, Pelaksanaan akad ini menggunakan dua bentuk perjanjian yaitu konvensional dan syariah, bagaimana kepastian hukum akad ini ditinjau dari segi hukum positif Indonesia adalah penting untuk dipahami. Metode yang digunakan dalam penelitian ini adalah dengan pendekatan penelitian hukum normatif (law research) namun di perkuat dengan data empiris. Sumber data berasal dari data primer dan sekunder, data tersebut kemudian dianalisa dengan menggunakan analisa secara logis. Penarikan kesimpulan dengan cara deskriptif metode deduktif. Hasil penelitian ini adalah Penerapan Akad Murabahah untuk membeli rumah dengan Pembiayaan Pemilikan Rumah (PPR) pada BRI Syariah Pekanbaru tidak dapat dijalankan secara murni sesuai dengan Keputusan DSN. No. 04/ DSN-MUI/ 2000 tentang Murabahah. Kepastian hukum pelaksanaan Akad Murabahah yang menggunakan wakalah merupakan kreasi hukum; Akad murabahah merupakan kepastian hukum alamiah/ natural certainty contract. Dengan demikian, sifat transaksinya fixed (tetap), dan predetermined (dapat ditentukan besarnya) dari sisi ini akad Murabahah lebih baik dari Perjanjian Kredit Bank Konvensional.
Pengaruh Budaya Organisasi Dan Gaya Kepemimpinan Terhadap Kepuasan Kerja Dan Kinerja Pada Pt Bank Riau Kepri Syariah Pekanbaru
Authors: Febrian Wenny Desty
Published: August 2019

Salah satu perbankan syariah yang ada di Riau umumnya dan di Pekanbaru khususnya yaitu PT. Bank Riau Kepri Syariah. Secara resmi PT. Bank Riau Kepri Syariah  Pekanbaru beroperasi di pusat kota Pekanbaru, yakni di Jl. Sudirman Pekanbaru. Dalam kegiatan usahanya PT. Bank Riau Kepri Syariah memiliki jenis simpanan seperti tabungan IB Sinar dan tabungan Umrah dan Haji. Secara parsial hasil penelitian ini terlihat nilai sig pada TBO adalah 0,130. Nilai sig lebih besar dari nilai probabilitas 0,050, atau nilai 0,130 > 0,05, maka H1 ditolak dan Ho diterima. Variabel X1 mempunyai thitung yakni 1,529 dengan ttabel=1,989. Jadi thitung < ttabel dapat disimpulkan bahwa variabel X1 tidak memiliki kontribusi terhadap Y atau TKK tidak berpengaruh signifikan terhadap TKI (Y). Untuk variabel Kepemimpinan (X2) Terhadap Kinerja (Y) terlihat nilai sig pada TK adalah 0,000. Nilai sig lebih kecil dari nilai probabilitas 0,050, atau nilai 0,000 < 0,05, maka H2 diterima dan Ho ditolak. Variabel X2 mempunyai thitung  yakni 5,504 dengan ttabel=1,989. Jadi thitung > ttabel dapat disimpulkan bahwa variabel X2 memiliki kontribusi terhadap Y atau TK berpengaruh signifikan terhadap TKI (Y). Untuk variabel Kepuasan Kerja (X3) Terhadap Kinerja (Y) terlihat nilai sig pada TKK adalah 0,047. Nilai sig lebih kecil dari nilai probabilitas 0,050, atau nilai 0,047 < 0,05, maka H3 diterima dan Ho ditolak. Variabel X3 mempunyai thitung  yakni 2,022 dengan ttabel=1,989. Jadi thitung > ttabel dapat disimpulkan bahwa variabel X3 memiliki kontribusi terhadap Y atau TKK berpengaruh signifikan terhadap TKI (Y). Sedangkan secara simultan/keseluruhan nilai F tabel dengan tingkat signifikan α = 5% dan Degrees of Freedom (df) sebesar 3; 81 adalah sebesar 2,717. Dari tabel diperoleh nilai Fhitung sebesar 25,294 dengan nilai probabilitas (sig)=0,000. Nilai Fhitung (25,294) > Ftabel (2,717), dan nilai sig lebih kecil dari nilai probabilitas 0,05 atau nilai 0,000 < 0,05 maka keputusan yang dapat diambil adalah Ho ditolak dan hipotesis penelitian diterima, berarti variabel TBO (X1), TK (X2), dan TKK (X3), secara keseluruhan mempunyai pengaruh yang signifikan terhadap Variabel TKI (Y).
Strategi Pengembangan Wisata Syariah di Sumatera Barat : Analisis Swot (Strength, Weakness, Opportunity, Threath
Authors: Rimet Rimet
Published: August 2019

Penelitian ini bertujuan untuk mengetahui strategi pengembangan wisata syariah di Sumatera Barat dengan menggunakan analisis SWOT. Lokasi penelitian adalah di Sumatera Barat dan objek penelitian ini adalah pemerintah daerah Sumatera Barat yaitu Dinas Pariwisata Provinsi Sumatera Barat. Analisis data menggunakan analisis model SWOT. Berdasarkan hasil penelitian diketahui bahwa stretegi pengembangan wisata syariah di Sumatera Barat adalah menjadikan pariwisata sebagai sektor unggulan, diimplementasikan melalui suatu Gerakan terpadu pengembangan kepariwisataan, Rapat-Rapat Koordinasi dengan Pemerintah Provinsi, Kabupaten/Kota dan Stakeholder terkait, kesepakatan Pemerintah Provinsi, Kabupaten/Kota menjadikan Sumatera Barat sebagai Destinasi Wista Halal, terpilihnya  Sumbar sebagai Destinasi Halal Terbaik Nasional, terpilihnya Sumbar sebagai Destinasi Kuliner Halal Terbaik Nasional, terpilihnya Sumbar sebagai World’s Best Halal Destination, terpilihnya Sumbar sebagai World’s Best Halal  Culinary Destination, Sosialisasi Wisata Halal bagi Stackholder Pariwisata, memberikan  subsidi untuk pengurusan Sertifikasi Halal untuk industri  (rumah makan/restoran), menyusun Ranperda Pariwisata Halal.
A GPU-Accelerated Machine Learning Framework for Molecular Simulation: Hoomd-Blue with TensorFlow
Authors: Barrett Rainier , Chakraborty Maghesree , Amirkulova Dilnoza , Gandhi Heta , White Andrew
Published: August 2019

We have designed and implemented software that enables integration of a scalable GPU-accelerated molecular mechanics engine, Hoomd-blue, with the machine learning (ML) TensorFlow package. TensorFlow is a GPU accelerated, scalable, graph-based tensor computation model building package that has been the implementation of many recent innovations in deep learning and other ML tasks. Tensor computation graphs allow for designation of robust, flexible, and easily replicated computational models for a variety of tasks. Our plugin leverages the generality and speed of computational tensor graphs in TensorFlow to enable four previously challenging tasks in molecular dynamics: (1) the calculation of arbitrary force-fields including neural-network-based, stochastic, and/or automatically-generated force-fields which are differentiated from potential functions; (2) the efficient computation of arbitrary collective variables; (3) the biasing of simulations via automatic differentiation of collective variables and consequently the implementation of many free energy biasing methods; (4) ML on any of the above tasks, including coarse grain force fields, on-the-fly learned biases, and collective variable calculations. The TensorFlow models are constructed in Python and can be visualized or debugged using the rich set of tools implemented in the TensorFlow package. In this article, we present examples of the four major tasks this method can accomplish, benchmark data, and describe the architecture of our implementation. This method should lead to both the design of new models in computational chemistry research and reproducible model specification without requiring recompiling or writing low-level code.
In Situ Monitoring of Mechanochemical Synthesis of Calcium Urea Phosphate Fertilizer Cocrystal Reveals Water-Based Autocatalysis
Authors: Julien Patrick , Germann Luzia S. , Titi Hatem M. , Etter Martin , Dinnebier Robert E. , Sharma Lohit , Baltrusaitis Jonas , Friscic Tomislav
Published: August 2019

Using the mechanosynthesis of the calcium phosphate and urea fertilizer cocrystal as a model, we provide the first in situ investigation of autocatalysis in a mechanochemical reaction. The application of in situ Raman spectroscopy and synchrotron X-ray diffraction provided the first direct evidence of a mechanochemical system in which a reaction product (water) mediates the rate of transformation and underpins positive feedback kinetics.
Method for Heterogeneous Sample Analysis on LCMS Without Sample Manipulation
Authors: Alimuddin Muhammad Asif , Richardson Paul , Wang Wei
Published: August 2019

We describe a simple, effective, and automated method that tolerates heterogeneous sample analysis on liquid chromatography mass spectrometer (LCMS) systems without any sample manipulation. This was developed to mitigate the inconsistent sample preparations that often arise when LCMS systems are operated in a self-service mode (walkup or open access), such as in a pharmaceutical research environment. We demonstrated the robustness of our method through 144 sequential injections of a heterogeneous sample on the LCMS without observing clogging or an increase in the system pressure, whereas with a conventional set-up, the same sample resulted in an almost instantaneous clog. Analysis of carefully tracked metrics for six walkup LCMS over 3 years since the rollout of this method at our facility has shown > 95% sustained reduction in clogging rate, accompanied by over a 30-fold increase in operational robustness, all with no impact on the quality of the chromatography. Implementation has further lead to savings in time and resources for both the system administrators and users, hence making walk-up LCMS easier to use yet harder to break, with the additional benefit of providing data for heterogeneous samples available to the user, and reducing sample carry-over. The method is inexpensive to implement and requires neither expensive hardware such as pumps or valves, nor any changes to existing LCMS methods.
Ambient Complexation Reaction of Zinc Acetate and Ascorbic acid Leads to a New Form of Nanoscale Particles with Emergent Optical Properties
Authors: Basu Srestha , Hajra Archismita , Chattopadhyay Arun
Published: August 2019

We report room temperature complexation reaction mediated formation of luminescent nanoscale particles from an aqueous mixture of ascorbic acid and zinc acetate.
Cocrystal Trimorphism as a Consequence of Orthogonality of Halogen- and Hydrogen-Bonding
Authors: Topic Filip , Lisac Katarina , Arhangelskis Mihails , Rissanen Kari , Cincic Dominik , Friscic Tomislav
Published: August 2019

True trimorphic cocrystals, i.e. multi-component molecular crystals of identical composition that exhibit three polymorphic structures, are exceedingly rare and so far no halogen-bonded cocrystal system was reported to exhibit trimorphism. Here, we describe a unique example of a trimorphic cocrystal exhibiting both hydrogen and halogen bonds in which the difference between polymorphs arises from their orthogonality evident by apparently independent variation of hydrogen- and halogen-bonded motifs.
Mechanochemical Synthesis of a Mercury(II) Metal-Organic Framework Reveals a Two-Dimensional Polymorph Stabilized by Weak Interactions
Authors: Speight Isaiah R. , Huskić Igor , Arhangelskis Mihails , Titi Hatem M. , Stein Robin , Hanusa Timothy P. , Friscic Tomislav
Published: August 2019

Solid-state mechanochemistry revealed a novel polymorph of the mercury(II) imidazolate framework, based on square-grid (sql) topology layers. Reaction monitoring and periodic density functional theory calculations show that the sql-structure is of higher stability than the previously reported three-dimensional structure, with the unexpected stabilization of a lower dimensionality structure explained by contributions of weak interactions, which include short C-H···Hg contacts.
Catalytic Fluorination of Boron Compounds at a Bismuth Redox Platform
Authors: Planas Oriol , Wang Feng , Leutzsch Markus , Cornella Josep
Published: August 2019

The ability of bismuth to maneuver between different oxidation states in a catalytic redox cycle, mimicking the canonical organometallic steps associated to a transition metal, is an elusive and unprecedented approach in the field of homogeneous catalysis. Herein we present a catalytic protocol based on bismuth, a benign and sustainable main-group element, capable of performing every organometallic step in the context of oxidative fluorination of boron compounds; a territory reserved to transition metals. A rational ligand design featuring hypervalent coordination together with a mechanistic understanding of the fundamental steps, permitted a catalytic fluorination protocol based on a Bi(III)/Bi(V) redox couple, which represents a unique example where a main-group element is capable of outperforming its transition metal counterparts.

A main text and supplementary material have been attached as pdf files containing all the methodology, techniques and characterization of the compounds reported.
Um Tesouro da Cultura Ocidental
Authors: Gomes Saul Antonio
Published: August 2019

Este artigo tem por objetivo tecer algumas considerações relativamente aos três manuscritos medievais que se encontram na Biblioteca Central (BCE) da Universidade de Brasília (UnB), a saber: Diálogos de S. Gregório, Vidas de Santos e Livro das Aves.  Esses manuscritos tiveram origem no universo do livro religioso medieval em território português. Esta é uma característica fundamental neste património, isto é, o da sua condição e dependência do universo cultural do medievo português, universo em que o religioso, como por todo o Ocidente cristão, ocupa o lugar central. Os manuscritos medievais da UnB não intermedeiam um texto originariamente em latim, mas antes um texto traduzido em língua portuguesa para melhor compreensão dos leitores a que se destinavam, no caso, e, sobretudo, um público clerical, regular ou secular, mas sem eliminar o acesso de possíveis utilizadores leigos.
O mundo doméstico europeu no Antigo Regime:
Authors: Oliveira Carla Mary S.
Published: August 2019

Resenha do livro: RUBIO, Gloria Franco. El ámbito doméstico en el Antiguo Régimen: de puertas adentro. Madri: Editorial Síntesis, 2018, 263 p.
Antioxidant activities of methanolic extract and its fractions of Baccaurea racemosa and Macaranga subpeltata leaves
Authors: Widodo H. , Sismindari  , Asmara W. , Rohman Abdul
Published: August 2019

Oxidative stress, the excessive presence of reactive oxygen species (ROS), is suggested as
a basal cause of aging as well as various degenerative and chronic diseases in human.
Antioxidants are believed to play a very vital role in the body defense system against
ROS. Plant-based antioxidants with their prominence have gained tremendous worldwide
interest nowadays. Baccaurea racemosa and Macaraanga subpeltata are among
ethnomedical used plants for liver diseases medication which have potential source as
natural antioxidants. The aim of the study was to evaluate the antioxidant activities of the
methanolic crude extract (CE) and their fractions of the plant’s leaves. Maceration was
performed to obtain CE, which then subjected to fractionation using n-hexane,
dichloromethane, chloroform, ethyl acetate, and ethanol to obtain fractions of hexane
fraction (HF), dichloromethane (DF), chloroform (CF), ethyl acetate (EAF), and ethanol
fractions (EF), respectively. The CE and all fractions included water fraction (WF) and
residue (R) were examined for its total phenolic contents, total flavonoid contents, and
antioxidant activities using various in vitro assay. In general, EAF demonstrated as the
best solvent for the extracting phenolic compounds with higher antioxidant activity. The
CE and its fractions of M. subpeltata contained higher of TPC and TFC, also
demonstrated higher antioxidant capacity, than that B. racemosa. The phenolics
compounds were responsible for the antiradical properties. The EAF of M. subpeltata was
scavenging those radicals better than that of L-(+)ascorbic acid as a positive control. The
high antioxidant activities and phenolics contents make both the plant extracts to be
developed as a food supplement.
Impact of Urbanisation on New Zealand Freshwater Quality
Authors: Chakravarthy Kalyan , Charters Frances , Cochrane Thomas A.
Published: August 2019

Urban waterways represent less than 1% of the total river length in New Zealand. However, they are the most visible of all rivers, as 86% of New Zealanders live in urban areas. Urban waterways are impaired due to elevated levels of pathogens, turbidity, nutrients and heavy metals originating from anthropogenic activities. In addition to being conduits of storm water run-off from urban areas, some urban waterways also receive discharges from wastewater treatment plants and combined sewage overflows, thus greatly reducing their capacity to provide ecosystem services such as recreation, tourism, biodiversity and mahinga kai. This article summarises the state of New Zealand’s urban freshwater quality, the major drivers of pollution, and mitigation measures needed to restore urban waterways.
Clinical Aspects of Prevention and Management of Primary Inferior Oblique Muscle Overaction
Authors: Plisov I. L. , Pushchina V. B. , Antsiferova N. G. , Gladysheva G. V. , Mamulat D. R. , Sharokhin M. A. , Belousova K. A.
Published: August 2019

Background. Primary inferior oblique muscle overaction (PIOOA) may occur for various reasons and happens to 72 % patients with infantile esotropia. The criterion for the first surgical step is prevalence of vertical or horizontal deviation. The choice of tactics weakening inferior oblique muscle is ambiguous.

Aims: to carry out retrospective analysis of PIOOA frequency in patients with infantile esotropia; to assess influence of esodeviation reduction by a surgical, chemodenervational or prismatic method on the existing PIOOA dynamics; to assess clinical and functional results of PIOOA treatment.

Methods and methods. The retrospective analysis of 572 patients’ cases lay in assessment of PIOOA frequency and rate in patients with infantile esotropia that manifested under 9 months, with different treatment tactics. The prospective part of the research included two groups of patients. Group 1 (106 patients, 222 eyes) – studying the influence of surgical treatment of PIOOA. Group 2 (127 patients, 207 eyes) – studying the effectiveness of surgical PIOOA treatment. Conclusion. PIOOA frequency in case of different treatment tactics for patients with infantile esotropia is from 17 to 69 %, and the degree of its clinical manifestation is from 1.2 ± 0.4 to 2.6 ± 0.8. Bilateral weakening of medial rectus muscle reduces its probability up to 17–19 %, and the degree of its manifestation up to 1.2 ± 0.4. In cases of combination of PIOOA with infantile esotropia from 20 to 25° with paretic component, it is reasonable to carry out esodeviation reduction by means of bilateral recession, chemorecession or prismatic correction as the first treatment stage, whereas the rate of existing PIOOA is credibly reduced. In cases of choice of tactics, which is necessary for clinically significant reduction or elimination of PIOOA, it is reasonable to carry out chemorecession, marginal partial myotomy or myectomy depending on the PIOOA manifestation.
Features of Femtosecond Correction of High Myopia through Small Access
Authors: Pisarevskaya O. V. , Shchuko A. G. , Iureva T. N. , Balgirova E. M. , Frolova T. N. , Khlebnikova L. S.
Published: August 2019

Aim. To modify the calculated parameters of the lenticle extraction refractive surgery through a small access (SMILE), evaluate its safety and clinical efficacy in correcting high myopia.

Materials and methods. 34 patients (68 eyes) underwent surgery by a modified SMILE technology under local anesthesia. In all cases, the patients had a high degree of myopia, in 37 % in combination with astigmatism.

Uncorrected visual acuity before surgery averaged 0.05 ± 0.11, best corrected visual acuity of 0.94 ± 0.1, the pre-operative spherical refraction component was –7.23 ± 0.75, the cylindrical component was –0.48 ± 0.59.

During the operation, to obtain the maximum possible refraction result using the proposed method, the standard operation parameters were changed: the corneal flap thickness was reduced to 100 μm, the neural optical layer by 5 μm, the diameter of the optical zone depended on the residual cornea thickness, which should exceed 280–290 μm. Corneal access was increased by 15–20 degrees.

Results. The next day after surgery, monocular uncorrected visual acuity in distance in 73 % of patients was 0.8 or higher, and in 41 % of cases it was equal to or exceeded 1.0. The spherical equivalent on the first day after surgery had a slight hypermetropic shift, which was completely leveled by the year of follow-up. During the surgical intervention and in the postoperative period, no complications were noted.

Conclusion. Using the proposed algorithm for calculating the refractive effect of the operation SMILE with a high degree of myopia allows obtaining a high refractive effect and avoiding possible complications.
Comparative Analysis of Clinical and Functional Results and Position of Intraocular Lens after Femtolaser-Assisted and Standard Cataract Phacoemulsification
Authors: Kulikova I. L. , Timofeyeva N. S.
Published: August 2019

Modern surgical treatment of cataracts provides effective results. The study of the position of the intraocular lens (IOL) in the capsule bag can be considered as one of the most important factors influencing the final visual and refractive result of the operation.

Aim: comparative analysis of clinical and functional results and position of the IOL in the capsular bag, namely decentration and tilt, when performing femtolazer-assisted phacoemulsification (FLACS) and standard phacoemulsification (CPCS). 

Materials and methods. We surveyed 57 patients (57 eyes). FLACS was performed in 27 patients, CPCS – in 30 patients. Standard methods of research were used, determination of the position of the IOL (decentration and tilt) in the capsular bag on the device OCT-Casia2 (TOMEY, Germany) and study of wave front were conducted.

Results. Comparative analysis of the obtained results showed no significant difference between groups in postoperative visual acuity, however, there was the trend towards higher performance corrected distance visual acuity and uncorrected distance in the group FLACS (0.68 ± 0.18 and 0.74 ± 0.2) compared to the group CPCS (0.58 ± 0.28 and 0.65 ± 0.24). Internal higher order aberrations were significantly low in the group with femtolazer accompaniment: in 3 mm zone almost 2 times (p = 0.041), in 5 mm zone 1.3 times (p = 0.047). Vertical decentration in a CPCS group made 0.217 ± 0.26 mm, in FLACS group – 0.118 ± 0.05 mm, the vertical tilt – 0.75 ± 0.37° and 0.54 ± 0.36 respectively. 

Conclusion. Decentralizations and IOL tilt tended to lower indices in the FLACS during the observation period up to 2 months after the operation, which was accompanied by lower values of higher order internal aberrations.
Characteristics of Somatic Status and Individual Biochemical Markers in Patients with Retinal Vein Occlusion
Authors: Zlobin I. V. , Iureva T. N. , Kursakova Yu. V.
Published: August 2019

Retinal vein occlusion is one of the most severe vascular lesions of the organ of vision, usually accompanied by somatic pathology.

The aim of the study was to study the somatic status and individual biochemical markers in patients with retinal vein occlusion and comparison in groups opposing the effectiveness of anti-VEGF therapy.

Methods. 84 patients with macular edema were examined on the background of retinal vein occlusion, who underwent intravitreal injections of an angiogenesis inhibitor for therapeutic purposes. Further, depending on the effectiveness of treatment, the patients were divided into 2 groups, in which a retrospective comparative analysis of somatic status and laboratory data was performed.

Results. It was shown that patients with occlusion of the retinal veins have significant impairments in terms of somatic status, blood biochemical parameters and coagulogram. Moreover, there is a direct relationship between the severity of somatic changes and ocular manifestations of the disease. The data obtained reflect a clear tendency in patients with occlusion of the retinal veins to a high risk of cardiovascular complications, including occlusive lesions. In patients with an insufficient treatment effect, a more severe course of arterial hypertension with an increased risk of stratification was detected.

Conclusion. The somatic status and laboratory parameters of patients with retinal vein occlusion are significantly different from the norm, which must be taken into account in the prognosis of the course of an ophthalmologic disease.
Analysis of Optical Properties of Posterior Surface of Cornea in Patients after Anterior Radial Keratotomy
Authors: Tsyrenzhapova E. K. , Rozanova O. I. , Seliverstova N. N.
Published: August 2019

Taking into account the constant increase in patients with age-related cataracts after radial keratotomy, a careful analysis of both the optical and anatomical properties of the cornea with the examination of the posterior surface is of particular importance.

Aim. To analyze the optical properties of the posterior surface of the cornea in patients after anterior radial keratotomy. 

Materials and methods. An examination of 24 patients (48 eyes) with age-related cataracts of varying degrees of density, myopia and the presence of a previous anterior radial keratotomy or radial-tangential keratotomy in history. The average age of patients was 59.5 years (from 47 to 68), there were 19 women and 5 men.

Results. The radius of curvature of the anterior surface in patients after anterior radial keratotomy was 9.45 ± 0.91 mm on average along the meridians, which is significantly more in comparison with these indices in control patients – 7.70 ± 0.19 mm (p = 0.0001). The ratio of the radii of the posterior cornea curvature to the anterior radius on average along the meridians in patients after anterior radial keratotomy was 1.07 ± 0.70, and in control patients – 1.20 ± 0.02 (p = 0.0001). The keratometric index in patients after anterior radial keratotomy was 1.3538 ± 0.0239, and in the control group – 1.3372 ± 0.0003 (p = 0.23).

Conclusion. In patients after anterior radial keratotomy, keratometry of the posterior surface of the cornea is significantly higher than in the control. The ratio of the radius of curvature of the posterior cornea to the radius of curvature of the anterior cornea varies significantly after anterior radial keratotomy, which is due to a more pronounced flattening of the posterior cornea. The standard keratometric index (1.3375) is invalid for patients after anterior radial keratotomy and must be calculated individually for each patient when deciding on the operative treatment of cataracts.