bluuebunny/crossref_metadata_2025 huggingface dataset:
Biografia performowana, czyli sceniczna gra (z) archiwum życia aktorki: Studium przypadku
Authors: Popczyk-Szczęsna Beata
Published: October 2022

Artykuł dotyczy kwestii reprezentacji biografii w sztukach teatralnych, w których „bieg życia” jednostki stanowi podstawę zabiegów re-kreacyjnych. Wśród najnowszych przedstawień inspirowanych materiałem biograficznym, często autotematycznych, które oscylują między fikcją i faktografią, wyróżniono typ określony jako biografia performowana. Jako reprezentatywny przykład takiego przedstawienia wybrano spektakl Wielce Szanowna Pani (reż. Martyna Peszko, Teatr Polski im. Hieronima Konieczki w Bydgoszczy, 2020) inspirowany biografią aktorki Haliny Mikołajskiej i utrzymany w poetyce gry (z) archiwum. Sceniczne performowanie biografii Mikołajskiej odbywa się dzięki wykorzystaniu dokumentacji pisanej i filmowej, utworów literackich, autotematycznych wypowiedzi i zachowań wykonawczyń oraz interakcji z publicznością. Dzięki temu fragmentaryczna re-kreacja jednostkowej biografii splata się z osobistymi i ogólnymi refleksjami o etycznych i emocjonalnych wyzwaniach wpisanych w zawód artystki scenicznej. Podstawą analizy przedstawienia jest pojęcie reenactment wprowadzone przez Rebekkę Schneider na określenie tych praktyk przywołania przeszłości, w których afektywny akt rekonstrukcji historii jest jednocześnie kreacją osobistej wypowiedzi wykonawców.
Aplicación móvil para el fomento, fortalecimiento y preservación del idioma indígena Zapoteca (Diidxazá)
Authors: Fuentes Cortes Williams , Reyes Jiménez Silvia , Sánchez González Rubén
Published: October 2022

The research consists of the development of a mobile application for Android and iOS operating systems, with the main purpose of promoting, strengthening and preserving the indigenous Zapotec language Diidxazá in its variant of San Blas Atempa, Oaxaca, Mexico. Through the application, any user who has little knowledge of the language, can practice through fun and interactive activities without an internet connection. Its intuitive and interactive design shows basic information about the indigenous language and its representation through images, as well as the audio pronunciation of each word. The methodology used is the user-centered design, which allows to understand the needs of the users and thus ensure that they obtain a greater satisfaction and an experience that guarantees the good use of the application. In addition, a modern technological tool such as the Flutter mobile development framework and the Visual Studio Code source code editor were used. As a result, a high-fidelity prototype was obtained, as well as the approval of the users through the usability scale system.
Una estrella con cola: apuntes el paso del cometa de Halley por el cielo, la prensa y la sociedad de Guatemala, 1910
Authors: Padilla Carrillo José Domingo
Published: October 2022

Los objetivos de este artículo son, en primer lugar, analizar la información difundida por la prensa en torno al paso del cometa. En un segundo orden de ideas, conocer cómo se divulgó el conocimiento astronómico y su posible recepción en las creencias populares, en particular entre la población urbana.  El corpus documental, basado en fuentes impresas del año 1910, permitió escoger secciones de los mismos periódicos tales como avisos económicos, editoriales, artículos de opinión que daban cuenta de la presencia del cometa; además, en bibliografía que, desde la ciencia social, fija su atención en la divulgación de la ciencia y la tecnología, así como en las creencias populares en torno al conocimiento científico. El cometa de Halley a su paso por Guatemala, despertó asombro, curiosidad, temor. La divulgación de información científica, alentó curiosidad y expectativas entre la opinión pública letrada. La nota periodística sobre el cometa, convivió en medio de noticias de otros sucesos, el paso del cometa no provocó sobresaltos ni furores colectivos. La aldeana Guatemala viviría otro momento estelar una década después, 1920.
Pragmatic Approach: A Study of Politeness Strategies in Pakistani Morning Shows
Authors: Farzana Khan  , Maryam Aadil  , Aurangzaib Akbar
Published: October 2022

The purpose of this study was to explore the use of different politeness strategies in Pakistani Morning shows and to find out the highly frequently used politeness strategies. It further explored the factors affecting the use of different politeness strategies. The data was collected from two Pakistani morning shows “The Morning Show” and “Ek Nayee Subah with Farah”. Brown and Levinson’s (1987) politeness strategies were explored in the utterances of speakers. The frequency of using these strategies was counted and the factors influencing the speakers to choose these strategies were analysed. The findings revealed that the hosts and guests employed all of the fifteen sub-strategies of positive politeness frequently to maintain close relationship. However, the hosts, as the higher level power participants, also apply bald-on strategy to be authoritative with their assistants and the audience. Negative politeness and its ten sub-strategies were less frequently used by the speakers. Different power ranks also affected the choice of politeness strategies because participants having high power used bald-on record strategy but same power ranks showed the application of negative and positive politeness.
Thermostability of thin juice
Authors: de Bruijn Jan Maarten
Published: October 2022

The initial thin juice pH value usually changes during juice evaporation. As long as the pH value of the final thick juice differs maximal ±0.5 pH units, preferably ±0.2 pH units, from that of thin juice, the thin juice is considered thermostable. The observed change of the juice pH value depends on the ratio between dissolved ammonia and carbon dioxide in thin juice. During the juice concentration both volatile components will evaporate at which they have opposite effects with respect to the pH value change. Ammonia is dissolved as ammonium ion in the juice and leaves a proton in the juice upon evaporation, whereas carbon dioxide is dissolved mainly as bicarbonate and delivers alkali upon evaporation.

This paper explains why a thermostable thin juice is crucial for the effectiveness of the following process steps evaporation and crystallization. Details about the origin of ammonia and carbon dioxide will be presented, as well as possible ways to control the thin juice thermostability by influencing the ammonia to carbon dioxide ratio.
The Effect of Financial Performance on Stock Prices of Food and Beverage Sector Companies
Authors: Budiharjo Roy
Published: October 2022

The purpose of this study was to determine the effect of liquidity, total asset turnover and firm size on stock prices. Secondary data collected by sample from food and beverage sector companies listed on the Indonesian stock exchange for the period 2017 – 2020. Sampling in this study using the purposive sampling method with the criteria as (1) listed on the Indonesia Stock Exchange in 2017 - 2020. (The data needed in this study taken from the Indonesian Capital Market Directory (ICMD) 2017-2020. Statistical tests carried out by t-test and linear regression analysis Before this test, the classical assumption test was carried out.The results of the study showed that firm size had a positive effect on stock prices, while liquidity and total asset turnover had no effect on stock prices.
Asociación entre tener Síndrome de Burnout y presentar problemas de salud mental en personal de salud de un Hospital Covid - Lambayeque, 2021
Authors: Diaz-Campos Ivonne Carolina , Avellaneda-Enriquez Eric Ricardo , Soto-Cáceres Víctor Alberto
Published: October 2022

Objetivo: Determinar si existe asociación entre tener Síndrome de Burnout (SB) y presentar problemas de salud mental (PSM) en personal de salud de un hospital COVID - Lambayeque, 2021. Material y métodos: Estudio analítico - transversal. Muestra fueron médicos, enfermeros y técnicos en enfermería que laboraron presencialmente en el Hospital Luis Heysen Inchaustegui - Chiclayo. La muestra fue de 170. Para la recolección de datos se aplicó el cuestionario Maslach Burnout Inventory (MBI) y el Cuestionario de Auto-reporte de síntomas psiquiátricos abreviado (SRQ) de manera virtual. Resultados: El 68,8% fueron mujeres y la media de edad fue 38 años. El 57,1% presentó SB alto y 67,6% obtuvo puntaje de “caso probable” para PSM. En el análisis de regresión múltiple, se encontró que el personal de salud con SB con puntaje alto tiene 2.05 veces mayor frecuencia de presentar PSM, respecto a quienes tenían puntajes medianos/bajos (RP=2.04; IC 95% 1.53-2-72). Conclusiones: Existe asociación positiva entre Síndrome de Burnout y presentar problemas de salud mental.
Palabras clave: Agotamiento profesional, salud mental, COVID-19. (DeCS BIREME)
IMPLEMENTASI MODEL PEMBELAJARAN PROBLEM SOLVING PADA MATA PELAJARAN TEKNIK PENGELASAN METAL INERT GAS DI SMK NEGERI 1 PALANGKA RAYA
Authors: Ade Sepriandi , Wiyogo
Published: October 2022

Penelitian ini bertujuan untuk mendeskripsikan penerapan model pembelajaran Problem Solving pada Mata Pelajaran Teknik Pengelasan Metal Inert Gas (MIG) Kompetensi Teknik Pengelasan Pipa Posisi di Bawah Tangan. Pendekatan kuantitatif digunakan pada penelitian Tindakan Kelas (PTK) ini. Penelitian ini melibatkan seluruh siswa kelas XI Teknik Pengelasan SMK Negeri 1 Palangka Raya yang berjumlah 20 orang. Data tentang respon siswa, aktivitas siswa, tes hasil belajar diperoleh setelah diterapkannya model pembelajaran Problem Solving. Hasil penelitian ini menunjukkan bahwa; (1) respon siswa tergolong pada kategori tinggi yaitu 91%, yang berarti siswa sangat setuju terhadap penerapan model pembelajaran Problem Solving, (2) aktivitas siswa dalam pembelajaran memperoleh persentase 87% yang berarti masuk dalam kategori baik sekali, (3) model pembelajaran Problem Solving terbukti efektif untuk meningkatkan hasil belajar siswa, ketuntasan secara klasikal dapat terpenuhi dengan persentase sebesar 100%, dan untuk tingkat ketercapaian pembelajaran serta penguasaan materi sebesar 80%. Penerapan model pembelajaran Problem Solving dapat meningkatkan hasil belajar siswa pada ranah psikomotorik, sehingga dapat melakukan proses pengelasan sesuai dengan materi, hal ini bisa dilihat dari hasil nilai psikomotorik siswa dengan skor rata-rata 75.
EFEKTIVITAS PEMBELAJARAN GAMBAR TEKNIK MESIN DENGAN AUTOCAD 2020 DI SMK NEGERI 1 PALANGKA RAYA
Authors: Fitriyanto Muhammad Noor , Yamin Idjar
Published: October 2022

Penelitian ini bertujuan mengetahui efektivitas pembelajaran Gambar Teknik Mesin dengan Autocad bila dibandingkan dengan pembelajaran konvensional. Penelitian kuasi eksperimen ini menggunakan sampel penelitian siswa kelas XI SMK N 1 Palangka Raya. Desain penelitian yang digunakan adalah pretest-posttest control group. Uji-t dilakukan untuk mengukur efektivitas media pembelajaran menggunakan Autocad dan pembelajaran konvensional berdasarkan kriteria hasil belajarnya. Berdasarkan hasil penelitian dapat disimpulkan bahwa efektivitas pembelajaran dengan Autocad dibanding pembelajaran konvensional mempunyai perbedaan yang signifikan. Pembelajaran Autocad lebih efektif dalam meningkatkan hasil belajar siswa dibandingkan dengan pembelajaran konvensional pada materi Gambar Teknik Mesin kelas XI SMK Negeri 1 Palangka Raya
STUDY OF THE POTENTIAL AND DEVELOPMENT OF RENEWABLE ENERGY POWER IN INDONESIA : A REVIEW
Authors: Paundra Fajar , Nurdin Akhmad
Published: October 2022

Energy consumption in Indonesia every year shows an increasing trend, with energy sources from fossils or non-renewable energy dominating renewable energy in the national energy mix. Climate change due to fossil energy emissions and the depletion of fossil energy reserves directly encourages Indonesia to develop and utilize renewable energy, which is abundantly available in Indonesia. The purpose of this study is to examine the development and planning of the contribution of renewable energy in each sector to the national energy mix in the short to long term. Geothermal capacity total installed in 2019 2130.7 MW with a plan 7.2 GW in 2025 and 17.6 GW in 2050, hydropower total capacity in 2019 6283.3 MW with a paln 21 GW in 2025 and 41 GW in 2050, bioenergy total ini 2019 for power generator 2200 MW with a plan 5.5 GW in 2025 and 26 GW in 2050, in solar energy total capacity in 2020 as power plant 17.22 MW with a plan 6,5 GW in 2025  and 45 GW in 2050, in wind energy until 2020 total capcity for electrical energi 153. 83 MW with a plan 1.8 GW in 2025 and 28 GW in 2050, and the marine energy energy sector in Indonesia has not yet been utilized as an energy harvester. In general, the government targets an increase in the percentage of renewable energy in the national energy mix in the short term until 2025 with a 23% contribution, and in the long term until 2050 with a 31% contribution.
PEMBUATAN PROGRAM CORE PADA CETAKAN PIRING PLASTIK MENGGUNAKAN SOFTWARE MASTERCAM X5
Authors: Ramadhan Rizki , Haris Abizar
Published: October 2022

The mold generally consists of two parts, namely the cavity and the core. CAD and CAM are solutions that can meet the needs of cavity and core fabrication. The CAM process is displayed to get a program in the form of a code file which will later be entered into the CNC machine. This study aims to be able to design and plan the process of making cores on plastic plate molds and being able to program core plate molds with software. This research was conducted to determine the process of making core plate molds. To determine the spindle speed and feed speed for each tool, see the cutting speed reference. From all stages of core plate manufacture with MasterCAM software, several machining processes are produced, namely drill, tap, boring, surface roughing, surface semi-finishing, and surface finishing. The total time required to complete all processes is 42 hours 48 minutes 11 seconds.
KARAKTERISTIK FISIK DAN LISTRIK BELIMBING WULUH UNTUK PEMBUATAN AKI ORGANIK
Authors: Pomalingo Moh Fikri , Elfransius Sinaga  , Amos Axel Sinaga  , Paulus Pius Pora Dosy  , Bastian Rikardo Parhusip  , Julfran Devit Damanik  , Djami Olii  , Desi Rinnawati Sinaga
Published: October 2022

The development of science and technology has made significant advances in the search for alternative energies to replace oil and coal. One of the widely studied alternative energies is electrical energy obtained from plants. The use of electrical energy is due to the increasing population. This increase results in people using electricity to fulfill their activities and lifestyle. An alternative energy from plants is star fruit. Starfruit is acidic and contains many good electrolytes for electricity. The results of the research related to the belief in Wuluh were carried out by researchers. Based on a 2: 1 ratio (earth and star fruit) it can produce 1V of electricity. When this concept is produced in large quantities and connected in series, it can produce greater electrical power. The research was excellent and laid the foundation for the team to develop various concepts. The plan is to manufacture the battery on a large scale so that it can later be used in areas without a power supply. This battery is also said to help illuminate public roads as an alternative to replacing solar panels.
Correlação da idade com estado nutricional e medidas antropométricas em Fuzileiros Navais da Marinha do Brasil: um estudo transversal
Authors: Viana Gomes Diego , Porto Alegre de Almeida Ana Carolina , De Lima Sant'Anna Marcelo , Pinto Salerno Verônica
Published: October 2022

Introdução: Diversos países vêm registrando aumento nas taxas de sobrepeso e obesidade em seu pessoal militar. O aumento da idade pode ser um dos fatores determinantes para o excesso de peso.
Objetivo: Avaliar a correlação de idade com estado nutricional e as medidas antropométricas (massa corporal total, percentual de gordura (%G) e dobras cutâneas(DC)) em Fuzileiros Navais da Marinha do Brasil. 
Métodos: Estudo observacional, transversal, realizado com 1.107 militares do sexo masculino. As medidas antropométricas massa corporal, estatura, %, DC foram coletadas e o Índice de Massa Corporal (IMC) foi calculado. Cinco grupos etários (anos) foram determinados, G1(18-21), G2(22-24), G3(25-27), G4(28-30), G5(31-33). As variáveis foram analisadas utilizando teste Kruskall-Wallis e coeficiente de correlação de Spearman. Foi utilizado p-valor menor que 0,05.
Resultados: A média do IMC da população do estudo foi de 24,7 (±3,1 kg/m2), porém, 40% estava com sobrepeso e 7% com obesidade. G4 e G5 apresentaram 29,0% de aumento significativo no %G em relação a G1. A espessura da DC peitoral do grupo G5 foi significativamente maior que em G1, G2 e G3, respectivamente 81,5%, 58,0% e 46,2%. A espessura das DC subescapular em G3, G4 e G5 foram significativamente maiores que em G1, respectivamente, 22,2%, 29,0% e 39,3. Houve correlações lineares positivas fortes do %G com as DC subescapular, tricipital e peitoral e do IMC com DC subescapular.
Conclusão: Apesar de ter sido visto um valor médio normal para o IMC na população estudada, foi observado aumento na prevalência de sobrepeso e obesidade conforme a idade aumentava.
Synthetic Transformer using Operational Transconductance Amplifier (OTA) and Voltage Differencing Current Conveyor (VDCC)
Authors: Yadav Jyoti , Aggrawal Bhawna
Published: October 2022

This paper presents a new realization of synthetic transformer using off the shelf active blocks. This proposed transformer is designed using operational transconductance amplifier (OTA), voltage differencing current conveyor (VDCC), resistor and capacitor. Use of VDCC helps to utilizes benefits of both voltage differencing unit and current conveyor. The working of proposed circuit is verified through simulations in LTSPICE using TSMC 180nm process characteristics. The proposed circuit offers the feature of adjusting primary and secondary self-inductances and mutual inductance independently. The bias current of the VDCC is used to control the primary and secondary self-inductance and mutual inductance of synthetic transformer.
Simulation and Optimization of Ultrasonic Transducer
Authors: Bagchi Arkya , Chowdhary Akash , Takki Abhishek , Kaur Raminder
Published: October 2022

The ultrasonic transducers have numerous applications in industries, including medical probes for performing ultrasound scans. One of the significant drawbacks of the ultrasonic transducer is the wastage of a large portion of energy, due to high acoustic impedance, while transmitting ultrasonic waves to the target object. The present study is aimed to investigate the material design of the piezo-composite transducer and improve its performance. Different piezo-composite transducers were simulated in the COMSOL environment by varying input parameters, and three key performance indicators (KPI) were calculated. Many constraint-based multivariable optimization algorithms have been used to maximize the KPIs. A set of parameters, such as Sensitivity and Fractional Bandwidth, have been found to increase the performance of piezo-composite transducer model and its overall efficiency. This study is intended to impinge unidirectional property to the transducer which is found to be beneficial in more accurate medical as well as structural reports and cost savings.
A Soft Computing Techniques Analysis for Planar Microstrip Antenna for Wireless Communications
Authors: Jyothi K.D. , Srinivas P. Bala , Kumar S.
Published: October 2022

The use of neural-network computational modules for radio frequency and microwave modelling and design has lately gained popularity as an uncommon but useful technique for this type of modelling and design. It is possible to train neural networks to study the behaviour of active and passive mechanisms and circuits. In this study, technologists will learn about what neural networks are and how they can be used to model microstrip patch antennas. An artificial neural network is used in this work to investigate in depth several designs and analysis methodologies for microstrip patch antennas. Various network structures are also discussed in this study for wireless communications. Microstrip antenna design has been presented and the use of ANN in microstrip antenna design are also shown in this article.
Analyzing the Distance of Residential Mobility according to the Household and Residential Environment Characteristics: Focused on Busan Metropolitan City
Authors:   Korea Real Estate Society, Lee Dae Wol , Choi yeol
Published: October 2022

The purpose of this study is to empirically analyze the impact of household and neighborhood characteristic on the distance of intra-urban mobility. For purpose of this study analysis is performed on residential mobility conducted in the city of Busan. Residential mobility is an important factor that relocates sociological and demographic capital, and it could sometimes lead to significant urban issues.
A number of studies have focused on residential mobility, but most of them have concentrated on its relationship with household characteristic and they focus on how many people or households move. In other words a number of previous studies simply show who or where residential mobility occur frequently without the notion of characteristics of migration. So the approach provide limited, and often biased views. The spatial perspective of residential mobility is one of the key aspects, and distance of migration is important factor that represents spatial patterns. Therefore, this study analyzes the correlation between the distance of intra-urban mobility and a set of neighborhood and household characteristics in a hierarchical structure.
From result of multi-level model and cross-classified multi-level model, it is found that neighborhood and household characteristics have different impact on distance of migration. These result present a meaningful information to a body of literature in residential mobility.
Property damage appraisal method in building fire accident on the appraisal for suit
Authors:   Korea Real Estate Society, Kwak Sang Bin , Jeon Gyung Keun , Choi Jin Hee
Published: October 2022

The occurrence of a fire can cause casualties, but it is clear that it causes enormous property damage. In an advanced society until recently, it can be seen that despite the development of technology, the property damage caused by fire accidents is increasing rapidly. When a fire occurs, damage occurs, and it often leads to various civil lawsuits related to fire damage. What is needed at this time is the litigation appraisal for the amount of fire damage.
The criteria for appraisal applied to each institution in charge of litigation appraisal are different, causing social problems. Accordingly, the purpose of this study is to examine the appraisal methods of buildings used in lawsuits due to fire, derive problems, and present improvement measures. To this end, it is necessary to examine the concept of litigation appraisal, compare and analyze the appraisal system and damage assessment system, and research on unifying the litigation appraisal method as a way to improve the difference in litigation appraisal method.
Are People in Federal Territories Part of “We the People of the United States”?
Authors: Lawson Gary , Seidman Guy
Published: October 2022

In 1820, a unanimous Supreme Court proclaimed: “The United States is the name given to our great republic, which is composed of states and territories.” While that key point is simple, and perhaps even obvious, the constitutional implications of interpreting “the United States” to include federal territories are potentially far reaching. In particular, the Constitution’s Preamble announces that the Constitution is authored by “We the People of the United States” and that the document is designed to “secure the Blessings of Liberty” to the author and its “Posterity.” If inhabitants of federal territory are among “We the People of the United States,” then federal actors owe them (and their “Posterity”) the same fiduciary duties owed to people in the States. There is no definitive answer regarding the original meaning of “We the People of the United States,” but the presumptive meaning of “the United States” in 1788 included federal territory, so the presumptive meaning of “the People of the United States” would similarly include people in federal territory. While there are strong textual and contextual arguments for excluding territorial inhabitants from “We the People,” there are also countervailing textual and contextual arguments for their inclusion. In the end, the answer may depend on something beyond the reach of interpretative theory: How strong is the presumption in favor of inclusion that can be drawn from pre-1788 understandings and practices? If territorial inhabitants are indeed among “We the People of the United States,” then federal action toward the territories must conform to fiduciary norms, including the key norm of impartiality with respect to multiple beneficiaries, which would require very strong reasons for disfavoring territorial inhabitants in comparison to state inhabitants.
NONLINEAR CHARACTERISTICS OF SQUARE SOLID-CORE PHOTONIC CRYSTAL FIBERS WITH VARIOUS LATTICE PARAMETERS IN THE CLADDING
Authors: Le Tran Bao Tran , Dang Van Trong , Chu Van Lanh , Nguyen Thi Hong Phuong , Trang Nguyen Minh Hang , Hoang Trong Duc , Nguyen Thi Thuy
Published: October 2022

Nonlinear characteristics of fused silica, solid-core photonic crystal fibers (PCFs) with a square array of air holes are studied numerically. We present a novel design that emphasizes the difference in air hole diameters in the photonic cladding. These PCFs have the advantages of flat dispersion, high nonlinearity, and low attenuation. Based on simulation results, three optimal structures, denoted #F1, #F2, and #F3, having anomalous and all-normal dispersions in the near-infrared range are selected to investigate characteristic properties at the pump wavelength. Such PCFs open up many possibilities for nonlinear optical applications, especially supercontinuum generation.
DESIGN OF A HIGH-SENSITIVITY DEVICE FOR DETECTING WEAK MAGNETIC FIELDS
Authors: Dao Trong Vinh , Le Dang Khanh , Le Minh Huy , Nguyen Dang Khoa , Luong Van Su
Published: October 2022

An anti-serial fluxgate sensor configuration is proposed in this report. The design comprises two identical bilayer-rod fluxgate sensors connected anti-serially in a straight line. Each bilayer-rod sensor is constructed of an excitation coil and a pick-up coil wrapped around a core. The core material consists of Metglas ribbon, an amorphous alloy with high permeability, negligible hysteresis, and a high saturated magnetic field. The core is cut into a bar shape and uses double layers to enhance modulated flux density. A high sensitivity of 10 mV/Oe (with excitation of 45 kHz and 250 mA) is obtained experimentally with low noise of 1´10-5 Oe/Ö Hz at 1 Hz. In measurements of weak magnetic fields, the azimuth response indicates its vector feature. The proposed design is suitable for electronic compass and displacement applications.
SEASONAL VARIATION OF PHYTOPLANKTON FUNCTIONAL GROUPS IN TUYEN LAM RESERVOIR, CENTRAL HIGHLANDS, VIETNAM
Authors: Tran Thi Hoang Yen , Le Thi Trang , Phan Doan Dang , Tran Thanh Thai , Nguyen Van Tu , Nguyen Ngoc Lam , Pham Thanh Luu
Published: October 2022

Seasonal changes in freshwater phytoplankton assemblages at Tuyen Lam Reservoir in the Central Highlands of Vietnam were classified into 23 functional groups based on physiological, morphological, and ecological characteristics. A total of 168 species were recorded during 10 surveys from 2015 to 2019 at 7 sampling sites, with Chlorophyta dominating in number of species. Phytoplankton abundance varied from 0.18×105 to 21.2×105 cells/L during the study period, mainly due to cyanobacteria. Seven of the 23 functional groups were considered to be dominant (relative density > 5%).  The dominant functional groups were groups M and G in the dry season and groups M, G, P, and E in the rainy season. Group M (Microcystis aeruginosa) was the most common in both seasons, while group P (Closterium, Staurastrum, Aulacoseira), group E (Dinobryon, Synura), and group G (Sphaerocystis, Eudorina) were more common in the rainy season. The Shannon diversity index (H¢) showed that phytoplankton communities were relatively diverse and that most of the study sites were lightly polluted. However, the ecological status has deteriorated at some locations due to the overgrowth of group M, leading to eutrophication in this reservoir. This study highlights the usefulness of functional groups in the study of seasonal changes in phytoplankton dynamics. Functional groups are applied for the first time at Tuyen Lam Reservoir and can be used to predict early-stage cyanobacterial blooms in future studies.
THE EFFECT OF ECOLOGICAL FACTORS ON GROWTH OF Sterculia foetida L. IN BUON DON AND EA SUP DISTRICTS, DAK LAK PROVINCE
Authors: Pham Trong Nhan , Le Hong En , Pham Khai Tan
Published: October 2022

Accurate and reliable assessment of site suitability for the growth of selected plant species is critical for afforestation projects and programs to improve rural livelihoods. This research examines the relationship between growth of Sterculia foetida L. and six ecological factors in Buon Don and Ea Sup districts, Dak Lak Province. The purpose of the research is to predict the growth in average height and trunk diameter of the trees using ecological factors that are easy to measure and observe. These include topography (slope) and soil characteristics (clay ratio, depth of soil layer, surface and subsurface rock concentrations, and agglomeration ratio). The ecological factors were evaluated by multivariable regression analysis of growth data from 31 experimental plots, 16 in Buon Don district and 15 in Ea Sup district. The results show that four of the six factors affect average growth in tree height and that five factors affect average trunk diameter growth. The findings are of practical value for households and agricultural extension officers to consider before planting Sterculia foetida L. in the two areas.
TRT Çocuk ve Dijital Oyun
Authors: DURMUŞOĞLU Mustafa Bora
Published: October 2022

TRT Çocuk Kanal Koordinatörü M. Bora Durmuşoğlu'nun TRT Akademi Dergisi'nin "Dijital Oyunlar" temalı sayısı için kaleme almış olduğu analiz/değerlendirme yazısıdır.
The evolution of antimonopoly regulation of digital platforms
Authors: Arutyunyan A. A. , Berbeneva A. D.
Published: October 2022

This paper provides comprehensive analysis of the evolution of approaches to antimonopoly regulation of digital market participants, the so-called “digital platforms”. So far business practices of digital platforms and their compliance with the antitrust rules have been widely studied by both the watchdogs of various countries and the expert community. However, a few years ago the research into these issues was not that thorough neither in science nor in practice Today, with sufficient experience on regulation of digital markets, legal acts are being drawn up in various jurisdictions that cover approaches to assessing the market position of digital platforms, as well as acceptable and unacceptable practices. Besides, specific control mechanisms are being designed to deter antitrust violations in digital markets. At the same time, digital technologies are evolving too fast. This will inevitably pose new challenges to regulators and science. New digital services, business models and options for expanding markets, for example, by developing ecosystem products, will appear. The paper presents analysis of the main stages in the development of antimonopoly regulation of digital markets: from the first antitrust cases against IT-companies to creation of special regulatory and control mechanisms of digital platforms. Furthermore, potential development of digital markets and their antitrust regulation both in Russia and abroad is considered. The paper offers review of legal acts and regulatory initiatives in the area of digital markets in different regions worldwide and refers to the key antitrust cases that have affected the regulatory approaches.
Cryptography and law: The case of Brazil
Authors: Cardoso O. V.
Published: October 2022

In a digitalised environment under conditions of reduced limits and boundaries between physical and virtual worlds, people’s daily activities increasingly migrate to cyberspace. For this reason, legal issues relating to encryption, deciphering and codebreaking become increasingly topical. Due to the increased vulnerability of a wide range of people to exploitation, digitalisation implies an urgent need to develop measures for preserving privacy in digital life. Increasing vulnerabilities experienced in the social environment due to the Internet and network interactions can be attributed to the erasure of boundaries between people, which is facilitated by access to their data. In terms of providing general protection to online users, digital contracts, routine bank transfers and communications serve as an example. Cryptography, which allows the encoding of a message in an unintelligible format for those who do not have the appropriate key, represents one of the safest techniques for securely transmitting information online. In order to examine the relations between law and cryptology, the present work analyses Brazilian legal acts governing cryptography. Here, as well as defining cryptography, the main objective is to determine its main aspects and key features in order to examine the main legal issues and pecularities of legal regulation. It concludes that cryptography, as a mean to protect privacy on the Internet, does not exclude the necessity of law, but, on the contrary, legal regulation is essential to provide legal certainty to the cryptographic techniques.
Çukurova koşullarında yetiştirilen Origanum türlerinin uçucu yağ oranları ve bileşenlerinin belirlenmesi
Authors: FERAHOĞLU Elif , ÇÜRÜK Umur , ÇOĞALAN Deniz , KIRICI Saliha , ÇAKAN Halil
Published: October 2022

Kekik uçucu yağı dünya üzerinde ticareti yapılan uçucu yağlar arasında biyolojik etkinliğinin çok yüksek olması ve çeşitli alanlarda kullanılması sebebiyle önemli bir yere sahiptir. Günümüzde dünya kekik dış ticaretinde büyük bir paya sahip olan Türkiye’ den temin edilen kekiğin yaklaşık %90’ı Origanum cinsine ait türlerdir. Bu çalışmada Çukurova koşullarında yetiştirilen farklı origanum türlerinin (O. vulgare, O. onites, O. syriacum, O. majorana, O. vogelii) uçucu yağ oranları ve bileşenleri belirlenmiştir. Biri endemik olmak üzere beş farklı Origanum türünün uçucu yağlarının incelendiği araştırma sonucunda türlerin uçucu yağ oranları O. vulgare %5.63, O. onites %5.13, O. syriacum %4.8, O.majorana %2.8, O.vogelii %1.4 olarak belirlenmiştir. Türlerin uçucu yağların ana bileşenlerini karvakrol ve/veya timol oluştururken sadece O. majorana türünün trans sabinen hydrate ve terpinen-4-ol oluşturduğu belirlenmiştir.
CADREIZATION OF WRITERS FOR DA'WAH
Authors: Na Lukman , Rahayu Yusi Surya
Published: October 2022

Tujuan Penelitian: Mengetahui dan menggambarkan strategi komunikasi Madrasah Pena dalam melahirkan penulis-penulis muda. Metode Penelitian: Kualitatif. Hasil Penelitian: Berdasarkan teori strategi komunikasi yang dikemukakan Anwar Arifin meliputi: mengenal khalayak, menyusun pesan, menentukan metode, pemilihan penggunaan media dan peranan komunikator. Maka Madrasah Pena dalam mencetak penulis- penulis muda melakukan hal-hal berikut: Menitik beratkan pelajar sebagai sasaran utama, menggali potensi yang ada pada anggota, melakukan berbagai macam pengkaderan, mengadakan kelas kepenulisan, bedah buku dan launching buku sebagai metode untuk menarik pelajar, menerbitkan buku, dan mengkonversi tulisan ke dalam bentuk yang menarik. Sehingga dapat disimpulkan bahwa strategi komunikasi Komunitas Madrasah Pena dalam melahirkan penulis-penulis muda adalah: Menitik beratkan pelajar sebagai sasaran utama, menggali potensi yang ada pada anggota melalui program review buku dan challenge menulis, melakukan berbagai macam pengkaderan, mengadakan kelas kepenulisan, bedah buku dan launching buku sebagai metode untuk menarik pelajar, menerbitkan buku, dan mengkonversi tulisan ke dalam bentuk yang menarik.
THE ROLE OF DA'I IN THE PROCESS OF DEVELOPING ISLAMIC EDUCATION ON KANGGE ISLAND
Authors: Nurjaman Dadi
Published: October 2022

The purpose of this study was to determine the role of preachers in the process of developing Islamic education in the coastal community of Kangge Island. Using qualitative research methods. The results of the study found that the first da'i was a facilitator. It is the da'i who have provided insight, motivated and discussed with the community, and then the results of the discussion were communicated to outside parties or stakeholders to get support in the development of Islamic education. Second, preachers as educators. That is, da'i are directly involved in becoming teachers. In addition, the da'i also held discussions with other teachers to formulate teaching and learning activities. The process of developing Islamic education through pdevelopment of community approach.
Chemical Composition of B-type Stars from LAMOST DR5
Authors: Liu Zhicun , Cui Wenyuan , Liu Chao , Alexeeva Sofya , Shi Jianrong , Zhao Gang
Published: October 2022

We present detailed criteria for the classification of subtypes of B-type supergiants and apply them to 97 supergiants chosen manually from the LAMOST DR5 data set. We obtained the physical parameters (effective temperature, surface gravity, projected rotational velocity) and chemical abundances of C and Si for 103 B-type stars, including 62 supergiants. Non-LTE TLUSTY atmospheric models are employed in our analysis. Projected rotational velocities of B-type stars are found to be systematically smaller than those of the old clusters in the Milky Way. The spectral types and luminosity classes of our manually classified B-type stars are consistent with their effective temperatures and surface gravities derived from the model spectral matching method, respectively. The obtained C and Si abundances for most of our B-type stars are subsolar. Our results indicate that a silicon abundance gradient is −0.0419 ± 0.0226 dex kpc−1 in the region of 7.1 kpc ≤ R

g
≤ 14.1 kpc, which is in agreement with previous studies.
Identifying High-energy Neutrino Transients by Neutrino Multiplet-triggered Follow-ups
Authors: Yoshida Shigeru , Murase Kohta , Tanaka Masaomi , Shimizu Nobuhiro , Ishihara Aya
Published: October 2022

Transient sources such as supernovae (SNe) and tidal disruption events are candidates of high-energy neutrino sources. However, SNe commonly occur in the universe and a chance coincidence of their detection with a neutrino signal cannot be avoided, which may lead to a challenge of claiming their association with neutrino emission. In order to overcome this difficulty, we propose a search for ∼10–100 TeV multiple neutrino events within a timescale of ∼30 days coming from the same direction, called neutrino multiplets. We show that demanding multiplet detection by a ∼1 km3 neutrino telescope limits the distances of detectable neutrino sources, which enables us to identify source counterparts by multiwavelength observations owing to the substantially reduced rate of the chance coincidence detection of transients. We apply our results by constructing a feasible strategy for optical follow-up observations and demonstrate that wide-field optical telescopes with a ≳4 m dish should be capable of identifying a transient associated with a neutrino multiplet. We also present the resultant sensitivity of multiplet neutrino detection as a function of the released energy of neutrinos and burst rate density. A model of neutrino transient sources with an emission energy greater than a few × 1051 erg and a burst rate rarer than a few ×10−8 Mpc−3 yr−1 is constrained by the null detection of multiplets by a ∼1 km3 scale neutrino telescope. This already disfavors the canonical high-luminosity gamma-ray bursts and jetted tidal disruption events as major sources in the TeV-energy neutrino sky.
Formation of the Cosmic-Ray Halo: The Role of Nonlinear Landau Damping
Authors: Chernyshov D. O. , Dogiel V. A. , Ivlev A. V. , Erlykin A. D. , Kiselev A. M.
Published: October 2022

We present a nonlinear model of a self-consistent Galactic halo, where the processes of cosmic-ray (CR) propagation and excitation/damping of MHD waves are included. The MHD turbulence that prevents CR escape from the Galaxy is entirely generated by the resonant streaming instability. The key mechanism controlling the halo size is the nonlinear Landau (NL) damping, which suppresses the amplitude of MHD fluctuations and, thus, makes the halo larger. The equilibrium turbulence spectrum is determined by a balance of CR excitation and NL damping, which sets the regions of diffusive and advective propagation of CRs. The boundary z
cr(E) between the two regions is the halo size, which slowly increases with the energy. For the vertical magnetic field of ∼1 μG, we estimate z
cr ∼ 1 kpc for GeV protons. The derived proton spectrum is in a good agreement with observational data.
SDSS J1058+5443: A Blue Quasar without Optical/NUV Broad Emission Lines
Authors: Zhang XueGuang , Zhao SiDan
Published: October 2022

In this paper, the blue quasar SDSS J105816.19+544310.2 (=SDSS J1058+5443) at redshift 0.479 has been reported as the best true type 2 quasar candidate with the disappearance of central broad-line regions. There are no definite conclusions on the very existence of true type 2 active galactic nuclei (AGN), mainly due to detected optical broad emission lines in high-quality spectra of some previously classified true type 2 AGN candidates. Here, unlike previously reported true type 2 AGN candidates among narrow emission-line galaxies with weak AGN activities but strong stellar lights, the definitely blue quasar SDSS J1058+5443 can be well confirmed as a true type 2 quasar due to apparent quasar-shape blue continuum emissions but an apparent loss of both the optical broad Balmer emission lines and the near-UV (NUV) broad Mg ii emission line. Based on different model functions and the F-test statistical technique, after considering blueshifted optical and UV Fe ii emissions, there are no apparent broad optical Balmer emission lines and/or broad NUV Mg ii lines, and the confidence level is smaller than 1σ in support of broad optical and NUV emission lines. Moreover, assuming the virialization assumption to broad-line emission clouds, the reconstructed broad emission lines strongly indicate that the probable intrinsic broad emission lines, if they exist, cannot be hidden or overwhelmed in the noise of the Sloan Digital Sky Survey spectrum of SDSS J1058+5443. Therefore, SDSS J1058+5443 is so far the best and most robust true type 2 quasar candidate, leading to the clear conclusion of the very existence of true type 2 AGN.
A Millimeter-multiwavelength Continuum Study of VLA 1623 West
Authors: Michel Arnaud , Sadavoy Sarah I. , Sheehan Patrick D. , Looney Leslie W. , Cox Erin G.
Published: October 2022

VLA 1623 West is an ambiguous source that has been described as a shocked cloudlet as well as a protostellar disk. We use deep ALMA 1.3 and 0.87 mm observations to constrain its shape and structure to determine its origins better. We use a series of geometric models to fit the uv visibilities at both wavelengths with GALARIO. Although the real visibilities show structures similar to what has been identified as gaps and rings in protoplanetary disks, we find that a modified flat-topped Gaussian model at high inclination provides the best fit to the observations. This fit agrees well with expectations for an optically thick, highly inclined disk. Nevertheless, we find that the geometric models consistently yield positive residuals at the four corners of the disk at both wavelengths. We interpret these residuals as evidence that the disk is flared in the millimeter dust. We use a simple toy model for an edge-on flared disk and find that the residuals best match a disk with flaring that is mainly restricted to the outer disk at R ≳ 30 au. Thus, VLA 1623W may represent a young protostellar disk where the large dust grains have not yet had enough time to settle into the midplane. This result may have implications for how disk evolution and vertical dust settling impact the initial conditions leading to planet formation.
Physical Characterization of Near-Earth Asteroid (52768) 1998 OR2: Evidence of Shock Darkening/Impact Melt
Authors: Battle Adam , Reddy Vishnu , Sanchez Juan A. , Sharkey Benjamin , Pearson Neil , Bowen Bryn
Published: October 2022

We conducted photometric and spectroscopic characterization of near-Earth asteroid (52768) 1998 OR2 during a close approach to Earth in 2020 April. Our photometric measurements confirm the rotation period of the asteroid to be 4.126 ± 0.179 hr, consistent with the previously published value of 4.112 ± 0.001 hr. By combining our visible spectroscopic measurements (0.45–0.93 μm) with archival MITHNEOS near-infrared spectra (0.78–2.49 μm), we classify the asteroid as an Xn-type in the Bus–DeMeo taxonomy. The combined spectrum shows two weak absorption bands: Band I at 0.926 ± 0.003 μm and Band II at 2.07 ± 0.02 μm, with band depths of 4.5% ± 0.15% and 4.0% ± 0.21%, respectively. The band area ratio is 1.13 ± 0.05. These spectral band parameters plot at the tip of the S(IV) region of the Gaffey S-asteroid subtypes plot, suggesting an affinity to ordinary chondrite meteorites. We calculated the chemistry of olivine and pyroxene using the Band I center to be 20.1 ± 2.3 mol% fayalite and 18.2 ± 1.5 mol% ferrosilite, consistent with H-chondrites. Principal component analysis of 1998 OR2's combined visible–near-IR spectrum falls on the C/X-complex side of the α-line, near the end of the shock-darkening trend, consistent with its weak absorption bands (band depth <5%). We use an areal mixing model with lab measurements of the shock-darkened H5 chondrite, Chergach, to constrain the amount of shock-darkened material on the asteroid’s surface at ∼63% dark lithology and ∼37% light lithology.
Redescription of the poorly known genus Ikuma Lawrence, with synonymy and description of a new species from Namibia (Araneae, Palpimanidae)
Authors: Zonstein Sergei , Marusik Yuri M.
Published: October 2022

The spider genus Ikuma Lawrence, 1938, endemic to Namibia, is rediagnosed and redescribed based on the characters both species originally included in the genus and of the newly described I. larsenisp. nov. A new synonymy is proposed: I. squamata Lawrence, 1938, described from a sole female is recognized a junior synonym of the type species I. spiculosa (Lawrence, 1927), based on a single juvenile. The currently described I. larsenisp. nov. differs from the generotype in the eye arrangement, structure of the abdominal scuta, and details of the colouration. The copulatory organs of both males and females belonging to Ikuma are studied, described and depicted for the first time. The previously known genus range confined to the far north of Namibia extends to the mid-western part of this country.
Liparis macrosepala (Orchidaceae), a new species from southwest China with its phylogenetic position
Authors: Wang Zhengwei , Zhang Yi , Zhang Ze , Li Xiaochen , Wu Zhijin , Yan Lan , Lu Aixian , Xie Chengzhi , Hu Chao , Huang Weichang
Published: October 2022

A new orchid species, Liparis macrosepala, is illustrated and described from Yunnan Province, China, based on morphological and molecular analyses. This plant is characterised by the ovoid-fusiform, slightly compressed pseudobulbs with 4 or 5 leaves with slightly crisped margins on their apical half, dorsal sepal heart-shaped, lip with a bituberculate basal callus and a thickened folded lateral lobe on each side, centrally with one cavity with slightly raised margins, the column with a single pair of broadly triangular, obtuse wings. Maximum Likelihood and Bayesian Inference analyses of combined nrITS and plastid matK DNA sequences place this species in section Cestichis.