bluuebunny/crossref_metadata_2025 huggingface dataset:
Analysis of images segmentation methods for car registration numbers.
Authors: Volodin D.O. , Afanasieva I.V.
Published: April 2021

The analysis of existing methods of image segmentation was held. A modified algorithm was developed, which segments the images of the car registration number.The proposed modification is intended for segmentation of non-textured or poorly textured images. Purpose–to select objects (including several) in the image and delete the background.For the analysis of methods selected images that are typical for the task.The registration marks of the cars were divided into 3 groups.The results of machine experiments showed that the combination of methods gives good results for both one and also for several objects, which have even slight differences from the background on brightness. In large objects, which consist of several parts of different brightness, it was possible to identify the key parts.Thus, a certain versatility of the developed modified algorithm has been achieved for different types of images of the registration mark of the car, which is represented by comparison.
BIOMIMETICS: NOTIONS, PROBLEMS AND TECHNOLOGIES
Authors: Mahmudova Shafagat
Published: April 2021

Biomimetics is an imitation model of systems and elements in the nature to solve complex human problems. Living organisms have well-adapted structures and materials for natural selection and have evolved over many years. The study of biomimetics technologies and their application in different areas can play an important role in the perfect economic development. This article touches upon various aspects of biomimetics and analyzes its technologies. The further development of these technologies in the future is intended.
Methods of structural synthesis and automated configuration of the program architecture of information system.
Authors: Chaynikov S.I. , Solodovnikov A.S.
Published: April 2021

Authors represent analysis of the methods of structural synthesis and customization of the information system software. It is indicated that modern methods do not satisfy the  requirements for effective adaptation of software for time-varying end-user requirements. It is shown that when developing formal graph models of software architecture using existing methods, evolutionary changes in end-user requirements are usually not considered, which leads to difficulties in solving the problem of customization. The mismatch betweenthe capabilities of existing design technologies and the practical needs to adapt software leads to the problem of developing effective formal approaches to customization. The analysis of the methods confirms the relevance of solving the problem of developing effective formal approaches to customization of software, taking into accountthe specifics of a particular enterprise and a particular workplace by using tier-parallel graph models of softwarearchitecture.
PRINCIPLES OF SEARCHING AND SORTING OPTIMIZATION IN SOCIAL NETWORKS USING A MULTI-FACTOR ASSESSMENT SYSTEM
Authors: Shopynskyi Maksim V. , Golian N. V. , Afanasieva I. V.
Published: April 2021

The analysis of social networks, which focuses on the relationship between social entities today is an area of active research. It is a set of tools for research, in particular, in combination with artificial intelligence methods such as machine learning, deep learning. The paper examined the current quality of the assessment of information in social networks, analyzed the methods of searching and sorting information in various social networks, as well as the process of providing recommendations to users. Social media data is an inexhaustible source of research and business opportunities. In general, social media data is information gathered from social networks that shows how users interact with content. Methods of improving search results for personalizing recommendations in social networks are given. These indicators and statistics provide an effective understanding of the strategy of behavior in social networks. The advantages and disadvantages of a multifactor assessment system are considered. The possible ways of integrating the combined system of evaluating information elements by the user to optimize search queries and filtering big data are identified.
INTELLECTUAL ANALYSIS OF DATA
Authors: Marchuk G.V. , Levkivskyy V.L. , Kaliberda S.S.
Published: April 2021

The main research of the article is the data mining methods, such as linear and polynomial regression and the support vector machine. The application success is based on the fact that the methods and technologies of Data mining ensure the study of data and the research of hidden patterns in them. The analysis assists in identification of various features and data parameters, and therefore it is a powerful tool in the stage of forming forecasting models.
LEARNING ROBOTICS PLATFORM FOR FOG / EDGE / AIOT
Authors: Hasko R. Т. , Shakhovska N.B.
Published: April 2021

The article describes a three-level training robotics platform for use in the learning process. The proposed platformis an organic part of the modern spiral of development of information processes and systems and allows to improve thequality of the educational process, to increase its orientation towards practical experience and to reflect the current stateof AI synergy through Edge / Fog / Cloud with IoT
Refinement of estimates of the success probability of a double-spend attack on the Blockchain System, Based on the Independent Players Model
Authors: Poluyanenko N.A. , Gorbenko Yu.I. , Safonenko V.E. , Kuznetsov A.A.
Published: April 2021

Blockchain technology is being studied in many innovative applications, such as: cryptocurrencies, smart contracts, communication systems, healthcare, Internet of Things, financial systems, software development, electronic voting and many others. Using a transparent and fully distributed peer-to-peer blockchain architecture, applications benefit from a data-only model, in which “transactions” are accepted into the blockchain ledger and, if the system is functioning properly, cannot be modified or deleted. The transparency of blockchain systems makes it possible to store publicly available and irrefutable records. A peer-to-peer blockchain system provides verifiable ledger maintenance without centralized management, which solves the problems of a single point of failure and a single point of trust. The article deals with the issue of the security of application of accounting systems built on decentralized principles using blockchain technology. Particular attention is paid to the problem of the possibility of double spending in such accounting systems. The article exemplifies the reorganization of records in blockchain ledgers, performed by successfully carrying out a 51% attack on consensus algorithms based on proof of work. Given refinement of analytical expressions of 51% attack probability obtained in the works of S. Nakamoto and M. Rosenfeld using a more general model, namely, the model of independent players, where the probability of block formation by attackers and an honest network are independent events. The results of comparing of the success probability of a double-spending attack on the blockchain systems calculated according to different models are presented.
Draft of Rainbow electronic signature standard and its main properties and application possibilities
Authors: Garmash D.V. , Maleeva G.A. , Kandiy S.O.
Published: April 2021

According to the results of the second stage of the international competition for research and development of standards for asymmetric cryptographic transformations of the post-quantum period, the Rainbow electronic signature (ES) mechanism received a positive assessment and recognition as a finalist. Its important advantages over other post-quantum ESs consist in less complexity of direct and inverse transformations, i.e., signature generation and verification, as well as significantly reduced signature length. At the same time, the length of its public key is quite large. Therefore, it is thought that Rainbow is not suitable as a general-purpose ES algorithm to replace the algorithms currently defined in FIPS 186-4. In particular, large public keys make certificate chains extremely large. However, there are applications that do not need to send keys too often, so this disadvantage in these cases may be insignificant. Under these conditions, the Rainbow ES mechanism can find application, including that one increasing the diversity of postquantum ESs. Also, it is significantly problematic to limit the security levels of Rainbow ES 256 bits against classical and 128 bits against quantum cryptanalysis.

The subject of this article is the analysis and generalization of designs of the Oil-Vinegar public key authentication systems mechanism based on the Rainbow ES use. This is an important direction in creating secure and efficient authentication systems for practical applications using public keys, such as inexpensive smart cards, when speed is required in the production and verification of ES. A feature of such authentication mechanism is the implementation of the idea of a multilevel Oil-Vinegar system. It is believed that the ES-based authentication system should be more secure in terms of cryptographic stability and more efficient in terms of widespread use in low-power, etc. applications. The importance of solving this problem lies in the potential use of the Rainbow mechanism as a secure and highly efficient public-key authentication system based on ES.
Method and technique of formal design of complex information security system in information and telecommunication systems
Authors: Gvozdov R.Y. , Oliynykov R.V.
Published: April 2021

The aim of the article is to develop a methodology for the formal design of the complex information security system in information and telecommunication systems. At the moment, there are no methods for the formal design of complex information security system in information and telecommunication systems, so the development of such a methodology is an urgent task. The article discusses the methods of formalized modeling of information security policy and methods of formalized description of the information and telecommunications system and information processing processes. The necessity of formal design of complex information security system is substantiated and the requirements for the development of formal descriptions of an integrated information security system in accordance with regulatory documents in the field of technical protection of information are described. The comparative characteristics of the methods of formalized modeling of information security policy and methods of formalized description of the information and telecommunication system and information processing processes are given. As a result of the comparison, it is proposed to use the UML method for the formal description of the information-telecommunication system, and the UMLsec method for the security policy modeling. An algorithm for the formation of a complex of protection facilities in an information and telecommunications system is proposed from a formal model of security policy and from a formalized description of an information and telecommunications system and information processing processes.
Comparative analysis of noise immunity of reception of nonlinear complex discrete signals with standard signals AFM-16 BPSK
Authors: Rassomakhin S.G. , Zamula A.A. , Gorbenko I.D. , Luc Ho Tri
Published: April 2021

The article shows that the solution to the problem of increasing the noise immunity (noise immunity and secrecy of functioning) of the ICS can be achieved using systems of nonlinear signals with improved ensemble, structural and correlation properties. Two classes of nonlinear complex discrete signals are considered: characteristic discrete signals (CDS) and cryptographic signals (CS). Methods for the synthesis of these signals are presented. The paper gives a statistical simulation model for studying the noise immunity of various classes of signals in the Gaussian channel. Using this model, estimates of the dependence of the error probability on the signal-to-noise ratio were obtained for various classes of signals, namely: CDS, KS and standard BPSK AFM-16 signals. It is shown that for the signal-to-noise ratio – 10 the error probability for the CDR is 4.6875e-06, for the CS is 3.515625e-06, and for the AFM-16 is 0.002025. Thus, the use of nonlinear complex discrete signals, in particular, CDS and KS, can significantly increase the noise immunity of signal reception in modern ICS. At the same time, taking into account the improved ensemble and structural properties of these nonlinear signals, it is possible to improve significantly the indicators of crypto- and imitation security of the systems functioning.
Complex processing of signals of integrated unmanned aerial vehicles surveillance system with the use of target designation
Authors: Kartashov V.М. , Oleinikov V.M. , Leonidov V.I. , Voronin V.V. , Kapusta A.I. , Selezniov I.S. , Pershyn I.V.
Published: April 2021

One of the urgent scientific and technical problems of our time is the development of methods and means of protecting various objects against the impact of unmanned aerial vehicles (UAVs) which carry a significant potential threat to various areas of human activity – military, economic and everyday life. Significant technical capabilities, a wide range and relatively low cost of UAVs, combined with the difficulties of their observation and control, are the main features of this problem. Currently, radar, acoustic, optical and infrared methods with the appropriate facilities are widely used to detect and observe unmanned aerial vehicles.

The article discusses the information capabilities of each of the methods and tools that are a part of an integrated system for detecting, measuring coordinates and parameters of UAV motion. It is shown that the radar method has the best search capabilities, while optical, infrared and acoustic methods are inferior to it. An algorithm for sequential connection of information resources available in an integrated system is discussed, taking into account the availability of search capabilities of the relevant means.

New effective methods of complex processing of multimodal signals and images in a complex integrated surveillance system for unmanned aerial vehicles, built taking into account the natural spatial separation of various information channels and using target designation, have been synthesized. The features of combining multimodal information with the use of neural network technologies when using target designations in an integrated system are shown.
Single resonator microwave device for monitoring the complex dielectric constant of liquid fuels and lubricants
Authors: Zhukov B.V. , Borbulev S.I.
Published: April 2021

A simplified structural diagram of a single-cavity microwave dielectric meter designed to control the complex permittivity of liquid fuels and lubricants is presented. The structural diagram of the microwave sensor of the dielectrometer, made in the form of a parallelepiped, inside which waveguide paths, a resonator, controlled and reference generators, mixing and detector diodes and attenuators is considered. A general view of the lower part of the microwave sensor housing is given.

The technique of initial tuning of the microwave sensor is considered, during which the initial frequencies of the controlled and reference oscillators are set and the range of electronic frequency tuning of the frequency of the controlled generator is determined.

A method for calibrating a dielectrometer with an empty cuvette is presented. This method makes it possible to determine the suitability of the cuvette for its use in measuring the complex dielectric constant of samples of fuels and lubricants, and to exclude the influence of the dispersion of the dielectric constant of the material of the cuvette on the results of measuring the complex dielectric constant of fuels and lubricants.

 The technique of studying the parameters of samples of fuels and lubricants is considered, based on which the measurement data are presented on a complex plane for analyzing the results obtained.

A technique for studying the difference between a fuel and lubricant sample and its standard is presented, which includes measuring the parameters of an empty cell, measuring the real and imaginary components of the complex dielectric constant of the fuel and lubricant sample and its standard, and analyzing the differences between their real and imaginary components on a complex plane.
Image registration comparative analysis: normalized correlation versus SIFT-based registration
Authors: Dushepa V.A. , Tiahnyriadno Y.A. , Baryshev I.V.
Published: April 2021

The paper compares the image registration algorithms: the classical normalized correlation (as a representative of intensity-based algorithms) and the SIFT-based algorithm (feature-based registration). A gradient subpixel correction algorithm was also used for normalized correlation. We compared the effectiveness of their work on real images (including a terrain map) when modeling artificial distortions. The accuracy of determining the position (shift) of one image relative to another in the presence of rotation and scale changes was studied. The experiment was carried out using a simulation model created in the Python programming language using the OpenCV computer vision library.
The results of the experiments show that in the absence of rotation and scale changes between the registered images the normalized correlation provides a slightly smaller root-mean-square error. At the same time, if there are even small such distortions, for example, a rotation of more than 2 degrees and a scale change of more than 2 percent, the probability of correct registration for the normalized correlation drops sharply. It was also noted that the advantages of normalized correlation are almost 5 times higher speed and the possibility of using it for small fragments (50x50 or less), where it is problematic for the SIFT algorithm to allocate a sufficient number of keypoints.
It was also shown that the use of a two-stage algorithm (SIFT-based registration at the first stage, and optimization with normalized correlation as a criterion at the second) allows you to get both high accuracy and stability to rotation and scale change, but this will be accompanied by high computational costs.
Semantic analysis of fluctuations of a radar pack for identification of air objects
Authors: Zhyrnov V. , Solonskaya S.
Published: April 2021

A method for semantic analysis of amplitude fluctuations of the radar pack to identify air objects in surveillance radars has been developed and implemented in software. This method is based on the determination of semantic components at the stage of formation and analysis of the symbolic model of a burst of impulse signals from mobile aircraft. Signal information is described by the predicate function of the process knowledge of the formation and analysis of the symbolic model of a burst of impulse signals from mobile aircraft such as an airplane, helicopter, UAV, and from atmospheric inhomogeneities of the angel-echo type. As a result of semantic analysis of the amplitude fluctuations, classification distinguishing attributes of fluctuations from interfering reflections and air objects are obtained. The semantic components of the decision-making algorithm, which are similar to decision-making algorithms by the operator, are investigated. In the developed algorithm, the signal information is described by a predicate function on the set of amplitudes of burst pulses exceeding a certain threshold value. Identification of the types of fluctuations is carried out by solving the developed equations of predicate operations. Based on these equations, a functional diagram of automatic determination of the fluctuation types is synthesized. The verification of the developed method was carried out on real data obtained on a survey centimeter-band radar (pulse duration 1 μs, sounding frequency 365 Hz, survey period 10 s). Based on these data, types of characteristic packs of radar signals are simulated. According to the results of the experiments, they were all correctly identified.
The Impact of Synchronous Online Learning on Students Attainment in Maths
Authors: Lestari Disa Evawani , Dewi Purnama
Published: April 2021

Akibat munculnya pandemi Covid-19, banyak sekolah di Indonesia yang menerapkan sekolah dari rumah di mana guru dan siswa harus belajar dari rumah, termasuk di sekolah dasar. Berdasarkan fakta tersebut, tak pelak, guru dan siswa ditantang untuk melakukan pembelajaran daring sinkron. Oleh karena itu, tujuan dari penelitian ini adalah untuk menganalisis pengaruh pembelajaran online sinkron terhadap prestasi belajar matematika siswa. Penelitian ini menggunakan metode triangulasi yang dapat membantu dalam mengkonfirmasikan kumpulan temuan berdasarkan hipotesis. Untuk memenuhi tujuan tersebut, 16 siswa kelas 4 SD di Jakarta direkrut sebagai peserta penelitian. Data dikumpulkan dari nilai akhir mata pelajaran matematika siswa di semester-1 (tatap muka) dan semester-2 (pembelajaran online sinkron), serta hasil observasi peserta selama 3 bulan pada semester-2 (pembelajaran online sinkron). Berdasarkan perhitungan analisis menggunakan aplikasi SPSS, Paired Sample T-Test menunjukkan nilai sig. (2-tailed) sebesar 0,014. Hasil 0,014 berada di bawah 0,05 yang berarti pembelajaran online sinkron telah menyebabkan penurunan yang signifikan pada hasil belajar matematika siswa dibandingkan dengan pembelajaran tatap muka. Faktor yang bisa mempengaruhi pencapaian siswa adalah kesiapan siswa dalam menggunakan teknologi dan media, manajemen waktu, kondisi fisik dan mental siswa terhadap pembelajaran online dan fokus diskusi.
Kemandirian Belajar Secara Daring Sebagai Prediktor Hasil Belajar Mahasiswa Pendidikan Matematika UIN Sunan Kalijaga
Authors: Fadila Riza Nur , Nadiroh Tia Ainun , Juliana Ria , Zulfa Primasari Zahra Hafizhotu , Ibrahim Ibrahim
Published: April 2021

Permasalahan pembelajaran daring di perguruan tinggi seperti kurangnya penjelasan materi oleh dosen menyebabkan mahasiswa dituntut lebih memiliki kemandirian belajar. Oleh karena itu kemandirian belajar penting dalam mencapai hasil belajar selama pembelajaran daring. Tujuan penelitian ini yaitu mengetahui prediksi hasil belajar mahasiswa dari kemandirian belajar selama pembelajaran daring dan korelasi antara kemandirian belajar dengan hasil belajar selama pembelajaran daring. Penelitian ini merupakan penelitian survey yang menggunakan pendekatan kuantitatif. Subjek penelitian ini yaitu 67 Mahasiswa aktif Pendidikan Matematika UIN Sunan Kalijaga semester genap tahun ajaran 2019/2020. Instrumen pengumpulan data yaitu angket kemandirian belajar dan database KHS (Kartu Hasil Studi). Analisis data menggunakan analisis statistik deskriptif dan analisis regresi linear sederhana. Hasil penelitian menunjukkan bahwa kemandirian belajar secara daring dapat dijadikan prediksi terhadap hasil belajar Mahasiswa Pendidikan Matematika UIN Sunan Kalijaga dan semakin tinggi kemandirian belajar mahasiswa, maka hasil belajar juga akan semakin tinggi. Hal tersebut membuktikan bahwa kemandirian belajar selama daring memiliki peran yang penting terhadap hasil belajar mahasiswa, sehingga mahasiswa dapat meningkatkan kemandirian belajarnya agar hasil belajarnya dapat meningkat.
Statistical Literacy of Pre-Service Islamic Religious Education Teachers
Authors: Nahdi Dede Salim , Araniri Nurudin , Jatisunda Mohamad Gilar , Kurino Yeni Dwi , Cahyaningsih Ujiati
Published: April 2021

Statistik dalam pendidikan berguna untuk memecahkan masalah yang dihadapi guru dalam kegiatan pembelajaran di kelas, seperti mengumpulkan data hasil tes, mengolahnya, dan menyajikannya dalam buku raport. Oleh karena itu, calon guru perlu memiliki keterampilan literasi statistik yang baik. Namun, banyak calon guru masih kesulitan memahaminya, terutama mereka yang tidak memiliki latar belakang keterampilan matematika yang baik. Kondisi ini terjadi pada calon guru di jurusan Pendidikan Agama Islam.  Penelitian ini bertujuan untuk mendeskripsikan literasi statistika calon guru di Jurusan Pendidikan Agama Islam berdasarkan indikator literasi statistika. Penelitian ini diharapkan dapat mendeskripsikan keterampilan literasi statistika mahasiswa sehingga dapat digunakan sebagai bahan penelitian selanjutnya. Penelitian ini menggunakan metode kualitatif deskriptif. Subjek dalam penelitian ini adalah 32 siswa. Pengumpulan data dilakukan dengan memberikan tes literasi statistik. Hasil penelitian menunjukkan 81,25% siswa mampu memahami data statistik yang ditampilkan dalam bentuk diagram garis; 87,50% siswa dapat menyajikan data dalam diagram yang sesuai, dan hanya 37,50% siswa yang mampu menginterpretasikan data dari kasus yang diberikan.
Efektivitas Model Pembelajaran Problem Solving Dan Problem Posing di Tinjau Dari Cara Berfikir Kreatif Matematika Di Sekolah Dasar
Authors: Nugroho Teguh Adi , Anugraheni Indri
Published: April 2021

Tujuan dari penelitian ini adalah untuk mengetahui efektivitas pembelajaran model problem solving dan problem posing di tinjau dari cara berfikir kreatif matematika sekolah dasar. Jenis penelitian yang dilakukan adalah eksperimen. Teknik Pengumpulan data yaitu dengan observasi dan dilakukan uji soal tes pretest dan uji soal tes posttest. Teknik analisis data dengan uji normalitas dan uji homogenitas. Dari data yang telah di sajikan pada tabel diatas dapat diketahui bahwa nilai rata-rata pretest kelas eksperimen adalah 66,40 dengan standar deviation 8,562 dengan menggunakan model problem posing nilai rata-rata meningkat menjadi 75,03 dengan standar deviation 5,988. Pada kelas kontrol di ketahui bahwa nilai rata-rata pretes kelas kontrol  adalah 68,83 dengan standar deviation 7.614. kemudian diberikan dengan menggunakan problem solving nilai meningkat menjadi 80.25 dengan standar deviation 7.085. Hal ini dapat di simpulkan bahwa model pembelajaran problem posing lebih efektif untuk meningkatkan kemampuan berfikir kreatif matematika siswa dibandingkan dengan model pembelajaran problem solving.
Meta Analisis Pengaruh Model Pembelajaran Numbered Head Together terhadap Kemampuan Berpikir Kritis Siswa Kelas V Tematik Muatan Pembelajaran Matematika
Authors: Surya putra Pangestu Bagas , Rahayu Theresia Sri
Published: April 2021

Pembelajaraan  tematik lebih cenderung melibatkan siswa secara mental dan fisik dalam  kegiatan  pembelajaraan di kelas. Sesuai dengan hakikat matematika, salah satu keterampilan yang diperlukan untuk menyelesaikan  masalah di sekolah dan kehidupan sehari-hari dalam proses pembelajaran matematika adalah keterampilan kerja sama. Menggunakan model atau metode pembelajaran yang benar dapat memberikan siswa ketrampilan kerjasama yang baik dan antusias. Penelitian ini bertujuan untuk mengetahui pengaruh antara model pembelajaran NHT dalam meningkatkan kemampuan berpikir kreatif pada siswa sekolah dasar. Jenis penelitian ini menggunakan penelitian meta analisis, Teknik yang telah digunakan adalah analisis teknik Effect Size dengan rumus effect size.Dari hasil penelitian ini menunjukan hasil model pembelajaran Numbered Head Together (NHT) dengan rata-rata 13.185. Dilihat dari hasil uji-T memperlihatkan bahwa model pembelajaran NHT dengan nilai sebesar 66.1160 meningkat menjadi 79.3010. Dari hasil penghitungan hipotesis penggunaan uji-T dengan menggunakan SPSS menunjukan nilai signitifikan sebesar 0,003 yang berarti lebih kecil dari 0,005 (0,003<0,005) uji SPSS membuktikan Thitung>T table sebesar 4.134 dan T table sebesar 3.189 menunjukan bahwa 4.234>3.289 dan signitifikasinya 0,003<0,005 menunjukan bahwa Ho ditolak dan Ha diterima. Dari model tersebut bahwa terdapat peningkatan kemampuan berpikir kreatif siswa sekolah dasar.
Differential expression of TGFBR3 in cancers of the breast.
Authors: Mamoor Shahan
Published: April 2021

Breast cancer affects women at relatively high frequency (1). We mined published microarray datasets (2, 3) to determine in an unbiased fashion and at the systems level genes most differentially expressed in the primary tumors of patients with breast cancer. We report here significant differential expression of the gene encoding the transforming growth factor beta receptor 3, TGFBR3, when comparing primary tumors of the breast to the tissue of origin, the normal breast. TGFBR3 mRNA was present at significantly lower quantities in tumors of the breast as compared to normal breast tissue. Analysis of human survival data revealed that expression of TGFBR3 in primary tumors of the breast was correlated with overall survival in patients with luminal A and luminal B cancers, demonstrating a relationship between primary tumor expression of a differentially expressed gene and patient survival outcomes influenced by molecular subtype. TGFBR3 may be of relevance to initiation, maintenance or progression of cancers of the female breast.
Frequency of Placenta Previa on Ultrasonography in Females with History of Caesarean Section
Authors: Kazmi Zaira , Tazeen Anjum , Riaz Umair , Farooq Syed Muhammad Yousaf , Fardous Sara , Saleem Amna , Wahab Abdul , Akhtar Abrar , Mughees-ul-Hassan
Published: April 2021

Background: Placenta previa (P.P) is a condition where the lower edge of the placenta lies close to the internal os. It may partially or completely cover the internal os. Objectives: To determine the frequency of placenta previa on ultrasonography in females with history of Caesarean section. Methodology: This descriptive study was held in Ghurki Trust Teaching Hospital Lahore and Tehsil Headquarter Hospital, Pattoki. Convex Probe Esotae 2.5 5-7MHz and Logiqv3 (5-7MHz) was used in the study. 140 pregnant women with history of previous Caesarean section were included in the study and were examined through convenient sampling. Data was collected after signing the consent form. Statistical software for social sciences (SPSS version 22.0) is used for the analysis of data. Results: According to the data analysis, minimum age patient was of 18 years and maximum age was 41 years. 37(26.4%) women had 1 previous Caesarean section. 57(40.7%) women had 2, 31(22.1%) women had 3, 15(10.7%) had 4 of previous Caesarean sections. 86(61.4%) women had a history of bleeding. 54(38.6%) women had no history of bleeding. According to analysis of placenta previa, 126(90.0%) women did not have a placenta previa and 14(10.0%) women had placenta previa. Cross tabulation analysis between frequency of patients with placenta previa and previous Caesarean cases evaluated that 126 patients with previous Caesarean rate did not placenta previa confirmed on ultrasound whereas 14 patients with previous Caesarean section had placenta previa on ultrasound. Conclusion: Placenta previa is seen in ten percent of subsequent pregnancies in females who have a history of previous Caesarean section.
Differential expression of the receptor for the leukemia inhibitory factor in cancers of the breast.
Authors: Mamoor Shahan
Published: April 2021

Breast cancer affects women at relatively high frequency (1). We mined published microarray datasets (2, 3) to determine in an unbiased fashion and at the systems level genes most differentially expressed in the primary tumors of patients with breast cancer. We report here significant differential expression of the gene encoding leukemia inhibitory factor receptor, LIFR, when comparing primary tumors of the breast to the tissue of origin, the normal breast. LIFR was also differentially expressed in the tumor cells of patients with triple negative breast cancer. LIFR mRNA was present at significantly lower quantities in tumors of the breast as compared to normal breast tissue. Analysis of human survival data revealed that expression of LIFR in primary tumors of the breast was correlated with overall survival in patients with basal and luminal B subtype cancer, demonstrating a complex relationship between primary tumor expression of a differentially expressed gene and patient survival outcomes influenced by molecular subtype. LIFR may be of relevance to initiation, maintenance or progression of cancers of the female breast.
Dampak Perubahan Pada Pembelajaran Sejarah Di Masa Wabah Pandemi Virus Covid-19
Authors: Septiawan Alfianoor
Published: April 2021

Tulisan ini membahas mengenai perubahan pembelajaran sejarah dari pembelajaran luring ke pembelajaran daring pada masa wabah pandemi virus Covid-19. Menyebarnya virus Covid-19 membuat banyak perubahan dalam berbagai aspek bidang salah satunya pada bidang pendidikan.
PENGANTAR KIMIA ORGANIK FISIS
Authors: Marzuki Ismail
Published: April 2021

Buku Ajar Pengantar Kimia Organik Fisis disajikan sebagai bahan ajar dikhususkan untuk mahasiswa dalam tingkat Pertama Bersama atau mahasiswa tingkat pertama di jenjang perguruan tinggi. Pengantar Kimia Organik Fisis dapat menjadi salah satu buku pegangan untuk berbagai bidang kajian, mulai dari mereka yang mendalami rumpun ilmu-ilmu sains, teknik, pertanian, kesehatan. Pengantar Kimia Organik Fisis ini juga penting untuk dimiliki oleh para mahasiswa yang baru memulai mendalami ilmu kimia khususnya yang bercita-cita menjadi seorang saintis, khususnya peminatan bidang kimia organik. Tambahan materi dan data dalam buku ini diperkaya hasil-hasil penelitian dan review jurnal dan materi kimia organik yang telah lama diajarkan selama ini. Konten dan konteks susunan materi pengantar kimia organik fisis ini disajikan dalam susunan Bab secara dan menggunakan Bahasa sederhana pula agar mudah dipahami oleh setiap pembaca. Susunan Bab terdiri atas: Bab (1) Struktur dan ikatan; (2) Ikatan Kovalen Polar: Asam-Basa; (3) Senyawa Organik Alkana dan Sikloalkana; (4) Alkena dan Alkuna; (5) Overview Senyawa Organik; (6) Stereokimia; dan (7) Alkohol, Eter dan Fenol.Pilihan materi kajian sebagaimana tersebut di atas dimaksudkan untuk memberikan pemahaman kepada setiap mahasiswa yang memiliki persinggungan dalam pengembangan bidang kajian masing-masing, sehingga dengan kombinasi-kombinasi kajian materi dari aspek pengkajian bidang ilmu yang bervariasi diharapkan dapat memperkaya dan berkontribusi dalam pengembangan ilmu kimia organik kontemporer. Dinamika ilmu pengetahuan dewasa ini memang tidak dapat di pungkiri sesuatu kebutuhan persilangan pengkajian dari beberapa sudut pandang, agar penyajian materi pembelajaran kimia organik semakin maju dengan lahirnya model-model pembelajaran yang dapat berjalan beriringan dan paralel dengan kemajuan ilmu lain dan juga dapat menjawab tantangan perkembangan global dewasa ini
Differential expression of calpain 11 in cancers of the breast.
Authors: Mamoor Shahan
Published: April 2021

Breast cancer affects women at relatively high frequency (1). We mined published microarray datasets (2, 3) to determine in an unbiased fashion and at the systems level genes most differentially expressed in the primary tumors of patients with breast cancer. We report here significant differential expression of the gene encoding calpain 11, CAPN11, when comparing primary tumors of the breast to the tissue of origin, the normal breast. CAPN11 was also differentially expressed in the tumor cells of patients with triple negative breast cancer. CAPN11 mRNA was present at significantly lower quantities in tumors of the breast as compared to normal breast tissue. Analysis of human survival data revealed that expression of CAPN11 in primary tumors of the breast was correlated with overall survival in patients with luminal A subtype cancer, demonstrating a relationship between primary tumor expression of a differentially expressed gene and patient survival outcomes influenced by molecular subtype. CAPN11 may be of relevance to initiation, maintenance or progression of cancers of the female breast.
Status and Response Till Third Stage of 2019 novel coronavirus disease (COVID-19) in Nepal
Authors: Koirala Shrishti , Yadav Kriti , Yadav Bharosh Kumar , Koirala Niwesh , Khatiwada Aamod , Dhakal Rabin
Published: April 2021

An outbreak of severe acute respiratory syndrome coronavirus infection occurred in Wuhan, China at the end of December 2019 and spread of this virus already reached to almost 210 countries around the world. WHO declared COVID-19 as ‘global pandemic’ on 11 March, 2020 and accounted South Asia as the high-risk region. Nepal, a landlocked country bordering two most populous countries, India and China, was expected to have high number of cases of COVID-19 due to its proximity to the highly infected country China, and lately spreading country India. Also, many of the Nepali people are engaged in the businesses related with China and India. However, there has been very few reported cases in Nepal. The first case was reported on 24th January 2020, one and half months after the first case was confirmed in China. It took almost three months for the number of cases to reach 45 and to kick off the community spread stage of the pandemic. This research presented the detailed situation of the cases, testing facilities, quarantine and isolation, hospital, and nursing care etc. before the start of Community Transmission stage in Nepal. The scenario has been represented graphically and the condition of other South Asian nations has also been compared and visualized. The steps taken by the government, individuals, and other organizations are also highlighted. This paper also provides the concrete data and their analysis about the pandemic which can be helpful not only for the current but also for the future pandemic controls.
HOSPITALITAS GADGET DAN DAMPAKNYA BAGI PEMUDA KRISTEN MASA KINI
Authors: L Desianti.
Published: April 2021

Tulisan ini memperlihatkan bahwa di zaman sekarang globalisasi sangat berpengaruh besar bagi kaum milenial dan pengaruh ini juga tidak terlepas dari pemuda kristen. Kenyataan dalam kehidupan sehari-hari dapat kita lihat bagaimana pengaruhnya, baik itu dalam masyatrakat maupun dalam gereja, gatget yang dulunya hanya sebatas alat komunikasi namun seiring berjalannya waktu dan teknologi yang semakin canggi, fungsi pemakain gatget juga menjadi berubah. Ketika berkumpul denga teman-teman atau dengan keluarga, seakan-akan tidak ada komunikasi antara satu dengan yang lain masing-masing fokus dengan gatgetnya. Atau bahkan di dalam Gereja saat ibadah, para pemudah kristen lebih tertarik mengakses media sosialnya, sehingga tidak lagi ada kefokusan terhadap ibadah serta terganggu di dalam mendengarkan Firman Tuhan. Globalisasi yang seharusnya membawa perubahan yang positif, tetapi para pemuda seakan merubahnya menjadi pengaruh yang negatif dan dapat kita lihat bahwa perubahan ini bahkan sangat memprihatinkan bagi kehidupan pemuda kristen. Tulisan ini juga akan memperlihatkan bagaimana pengaruh positif dan negatif penggunaan gatget bagi pemudah kristen pada masa kini. Meskipun pengaruh negatif penggunaan gatget bagi para pemudah kristen sangatlah besar tetapi juga memiliki pengaruh yang positif.
Model Pembelajaran Blended Learning Dan Google Classroom Dalam Mengefektifkan Proses Belajar Mengajar Di Era Revolusi Industri 4.0
Authors: Marisi Candra Gunawan
Published: April 2021

Model pembelajaran blended learning dan google classroom dalam mengefektifkan proses belajar mengajar di era revolusi Industri 4.0, adalah hal yang baru bagi sebagian pelaku pendidikan. Oleh karena itu tujuan penelitian ini adalah untuk mengetahui model pembelajaran blended learning dan google classroom dalam mengefektifkan proses belajar mengajar di era revolusi industri 4.0. Kombinasi antara pembelajaran tatap muka dengan pembelajaran e-learning (online) memudahkan terjadinya interaksi belajar antara guru dan siswa atau antar siswa. Akses informasi dan materi pelajaran dapat dilakukan kapanpun dan dimanapun. Google classroom adalah Learning Management System (LMS) yaitu sistem pengelolaan kelas secara virtual yang integratif dan lebih praktis dibandingkan sistem pembelajaran konvensional, sehingga sangat membantu meringankan pekerjaan guru dalam melakukan pengelolaan kelas, seperti memberikan pengumuman, tugas, berkomunikasi, dan mengevaluasi, sehingga dapat menghemat waktu dan kertas karena semuanya dibuat pada aplikasi satu tempat. Model Pembelajaran blended learning dan google classroom sangat memungkinkan dalam mengefektifkan proses belajar mengajar di era revolusi industri 4.0
Tinjauan Teologis Terhadap Pernikahan, Perceraian Dan Pernikahan Kembali di Lihat dari Sudut Pandang Alkitab
Authors: Marisi Candra Gunawan
Published: April 2021

Manusia adalah ciptaan Allah yang mana Tuhan menciptakannya penuh dengan sempurna, di ciptakanNya laki – laki dan perempuan. Di bumi ini banyak manusia bisa menciptakan sesuatu, tetapi manusia tidak dapat menciptakan yang namanya Keluarga. Allah menciptakan dan membentuk sebuah Keluarga dan itu di mulai pada waktu manusia ada di Taman Eden. Akibat manusia memilih untuk taat kepada Setan maka manusia jatuh ke dalam dosa. Dan dosa tersebut merusak rencana Allah dan menghancurkan yang namanya keluarga. Berbagai tantangan yang di hadapi oleh keluarga pada hari – hari terakhir ini semakin lama semakin berat di rasakan. Sesungguhnya dalam perjalanan kehidupan suami istri tidak dapat di pisahkan adanya rasa suka dan duka, bahkan kemungkinan terjadi komplik yang berkepanjangan .Kebahagian suami istri bukanlah sesuatu yang terjadi secara otomatis, tetapi perlu adanya usaha untuk tetap menjaga “api cinta “”oleh kedua belah pihak. Oleh karena itu setiap pasangan yang memasuki pernikahan harus di persiapkan dan di bekali Firman Tuhan supaya siap menghadapi proses perjalanan rumah tangganya.
TRADISI MENGANYAM TIKAR PURUN SEBAGAI MATA PENCAHARIAN
Authors: Fahriannor"
Published: April 2021

Perkembangan zaman yang ditandai dengan pesatnya perkembangan teknologi dan infomasi ditambah dengan pandangan yang merasuki sikap masyarakat tentang hidup. Tradisi menganyam tikar purun dianggap penting karena harga bahan baku yang murah serta banyak terdapat di lahan gambut. Wanita-wanita di Desa Palukahan kecamatan Danau Panggang HSU juga beranggapan bahwa menganyam tikar purun dapat membantu kehidupan sehari-hari, sehingga masyarakat berharap nanti para penerusnya dapat terbantu perekonomiannya.
Filsafat Ilmu Pengetahuan
Authors: Marzuki Ismail
Published: April 2021

Setiap karya yang disusun atas landasan perencanaan dan penyusunan yang matang dapat memperoleh hasil yang baik. Penyusunan tersebut tentunya memiliki filosofi tersendiri yang berbeda dengan yang lain. Karya Filsafat Ilmu Pengetahuan tentu sudah sangat banyak dan tersebar luas di banyak kalangan, meskipun demikian, buku ini tetap mempunyai nilai filosofis yang memilikinya dengan berbagai makna berbeda dengan karya sejenis, minimal pada aspek ruang dan waktu dalam rencana dan penyusunannya. Buku ini terdiri atas 8 Bab dengan rincian: Bab IPotret Filsafat Dulu dan Kini; Bab IIPandangan Ilmu Pngetahuan Terhadap Filsafat; Bab IIIPandangan Filsafat terhadap Fenomena Alam; Bab IVEksistensi Manusia sebagai Pencetus Ilmu; Bab VPandangan Filsafat terhadap Pendidikan Kebangsaan Berbasis Tauhid; Bab VIPandangan Filsafat dalam Rasionalisme Manusia; Bab VIIFilsafat dan Paradigma Sains Masa KiniTeori dan Nilai dalam Filsafat; Bab VIIIIlmu Pengetahuan, Teori dan Nilai dalam FilsafatPilihan materi dalam setiap Bab yang disajikan merupakan topik-topik yang dipandang sebagai bagian yang berperan dalam merunut kembali perkembangan ilmu pengetahuan dulu dan kini. Buku ini berusaha untuk menyambungkan kembali alur pengetahuan yang dianggap renggang akibat munculnya era globalisasi yang di barengi dengan model kehidupan yang begitu renggang atas masa dan kehidupan kini dengan masa lampau.
MADAM DALAM TRADISI ADAT ORANG BANJAR
Authors: Safitri Mulyani
Published: April 2021

Orang Banjar saat ini tidak bisa menghindar dari pengaruh global, di mana segala macam informasi dari berbagai penjuru dunia saling berpapasan dan berebut menuntut perhatian dan telah masuk ke ruang kehidupan mereka. Identitas orang Banjar adalah sebagai pemeluk Islam yang taat dalam beragama dan perantau ulung, apakah budaya merantau (madam) masih bisa bertahan di era global atau bahkan mulai terkikis dari akarnya? Orang Banjar mengenal beberapa tradisi yang senantiasa mereka jalani terkait dengan usaha menuntut ilmu, menyebarkan agama Islam, maupun usaha dagang. Di antaranya adalah tradisi madam, yaitu merantau atau imigrasi ke berbagai daerah Nusantara maupun luar negeri untuk menuntut ilmu, dakwah Islam, berdagang; atau di era sekarang kebanyakan orang Banjar merantau ke luar negeri, seperti Arab Saudi, Malaysia dalam rangka menjadi tenaga kerja. Madam atau merantau merupakan budaya masyarakat yang tinggal di pingiran sungai atau laut. Hal ini bisa dilihat dari berbagai ras yang ada di Indonesia, seperti orang Minang, Aceh, Bugis, Jawa, Madura, Banjar adalah suku-suku yang terkenal sebagai pelaut, pedagang, dan perantau ulung. Mobilitas kehidupan orang pesisir sangat tinggi, karena sikap hidup yang dinamis dan terbuka untuk menerima perubahan. Salah satu kutipan yang digunakan adalah Zaenal Arifin Anis, Mohamad (2014) Sejarah, Pendidikan Sejarah, dan Pendidikan Karakter Dialog yang Tidak Pernah Dituntaskan. In: Building Nation Character Through Education: Proceeding International Seminar on Character Education.
College student interest in teletherapy and self-guided mental health supports during the COVID-19 pandemic
Authors: Ahuvia Isaac , Sung Jenna , Dobias Mallory , Nelson Brady , Richmond Lauren , London Bonita , Schleider Jessica L.
Published: April 2021

Objective: The COVID-19 pandemic has worsened college students’ mental health while simultaneously creating new barriers to traditional in-person care. Teletherapy and online self-guided mental health supports are two potential avenues for addressing unmet mental health needs when face-to-face services are less accessible, but little is known about factors that shape interest in these supports. Participants: 1,224 U.S. undergraduate students (mean age=20.7; 72.5% female; 40.0% White) participated. Methods: Students completed an online questionnaire assessing interest in teletherapy and self-guided supports. Predictors included age, sex, ethnicity, sexual minority status, and anxiety and depression symptomatology. Results: Interest rates were 20% and 25% for at-cost supports and 70% and 72% for free supports. Older age, higher anxiety symptomatology, and identifying as Asian significantly predicted greater interest levels. Conclusions: Results may inform universities’ efforts to optimize students’ engagement with nontraditional, digital mental health supports, including teletherapy and self-guided programs.
Inspection Reports in Turkey and United Kingdom: A Comparative Study of Inspections
Authors: Usta Mehmet E.
Published: April 2021

This study aims to compare the school inspection reports prepared by educational inspectors in Turkey and the United Kingdom. In Turkey, educational inspection is carried out by the Educational Inspectors of the Ministry of National Education. On the other hand, educational inspection in the UK is carried out by Ofsted education inspectors. In both countries, it is compulsory to prepare an inspection report at the conclusion of an inspection, which sheds light on and evaluates the activities carried out at the school. The inspection reports are the subject of this study in terms of both form and content. The qualitative research method was used in the study and a document analysis was carried out. In this context, 10 inspection reports from both Turkey and the United Kingdom each were subjected to the inspection report review. A code was assigned to each inspection report. The reports originating from Turkey that were subjected to review were assigned the code TR, while the reports originating from the United Kingdom that were subjected to review were assigned the code UK. Titles of the inspection reports were determined and sample expressions related to each title were included in the text. As a result, although there are some similarities in the form of inspections, Ofsted reports were judged to be different, especially in terms of participation, evaluation of direct training activities, transparency and participation.