bluuebunny/crossref_metadata_2025 huggingface dataset:
Numerical modeling of peat burning processes in a vortex furnace with countercurrent swirl flows
Authors: Redko Andriy , Burda Yurii , Dzhyoiev Rafael , Redko Igor , Norchak Volodymyr , Pavlovskiiy Serhii , Redko Oleksandr
Published: April 2020

The paper presents the process of peat burning in a swirl furnace with counter-current swirl flows and the results of a numerical study. The cyclone-vortex technology of solid fuel combustion allows the furnace volume of a boiler unit, its dimensions and weight to be reduced. The aim of the work is a numerical study of the combustion of pulverized peat in a cylindrical vortex furnace with counter-current swirl flows. The results of computer simulation of the combustion of pulverized peat with a moisture content of 40%, an ash content of 6%, and a higher heat of combustion QpH = 12.3 MJ/kg are presented. The results of the influence of the design parameters of the furnace and heat load (from 100-15%) are given as well. When the heat load is reduced to 15%, the entrainment of unburnt particles increases. The cooled and adiabatic furnace is studied. A significant entrainment of unburned particles is observed in a cooled furnace. The fields of temperature distribution, gas velocity, and particle trajectory in the volume and at the outlet of the furnace are determined. The 3-D temperature distribution in the furnace volume indicates the combustion of peat particles at temperatures (1300-1450?C). Values of the tangential velocity of a swirl flow near the furnace outlet reach 150-370 m/s, which ensures the efficiency of separation of fuel particles and a reduction in heat loss due to mechanical underburning (up to 0.06%). The results of a numerical study show that the diameter of peat particles affects the combustion process, namely coke of particles with an initial diameter from 25-250 ?m burns out by 96%, and particles with a diameter of about 1000 ?m are carried away from the furnace and do not burn. The furnace provides a complete combustion of dust particles of peat by 99.8% and volatiles by 100%.
Numerical analysis of the flow dynamics of an N2 cryogenic jet
Authors: Bensalem Chafik , Benarous Abdallah , Logerais Pierre-Olivier
Published: April 2020

Injection and mixing of cryogenic propellants are very complex at near-critical and supercritical conditions. The concise description and the reliable measurements on such flows are still questionable. In this work, a RANS study is performed for a pure N2 fluid injection at transcritical conditions on a laboratory scale test rig. An in-depth thermodynamical analysis on the real-gas behavior has allowed N2 density prediction over the experimental range of the injection temperature and for several equations of state. A focus was thrown on the prediction of the density evolution on the chamber centerline and across the injector. The calculations were performed using both adiabatic and constant temperature conditions for the injector wall. The inner heat transfer in the injector had a significant effect on the jet density distribution and therefore, on the overall flow dynamics. Numerical results regarding axial profiles of density and dense core lengths agree fairly well with the experimental data provided by the literature.
Comparative analysis of a solar trigeneration system based on parabolic trough collectors using graphene and ferrofluid nanoparticles
Authors: Ibrahim Alla , Kayfeci Muhammet
Published: April 2020

In this comparative study, the thermodynamic analysis of a trigeneration system driven by a parabolic through solar collector based on two different types of nanofluid is performed. A standard trigeneration system consists of two subsystems, including an absorption heat pump and the organic Rankine cycle. Two types of nanoparticles (graphene and ferrofluid) that possess excellent and diverse physical properties within a base fluid (Syltherm 800) were selected to be the absorption fluids in the solar cycle. Four organic fluids, namely R123, R401a, R601, and R601a, for the organic Rankine cycle are examined. The results clearly depicted improvement in the system performance. It was found that graphene nanoparticles performed better as compared to the ferrofluid nanoparticles. The largest temperature of the collector outlet was obtained at 257.4? with Syltherm 800/graphene. The highest net power produced by the system was 134.1 kW and the maximum overall energy and exergy efficiencies of the system were 160.5% and 21.84%, respectively. The highest net power produced by the system was 134.1 kW and the maximum overall energy and exergy efficiencies of the system were 160.5% and 21.84%, respectively. The solar collectors are the main source of the exergy destruction and the highest value was recorded about 683 kW.
Comments on “Analysis of heat transfer and irreversibility of ORC evaporator for selecting working fluid and operating conditions”
Authors: Awad Mohamed
Published: April 2020

Commentaries are presented on Ye et al. [1]?s paper, where the authors investigated the performance of heat transfer in evaporator under the case that the parameters of the heat source and temperature of pinch point were identified. They utilized the graphical method of temperature-heat (T-Q) diagram analysis. Also, they utilized the entransy principle in their analysis. Commentaries show the reality that the graphical method of T-Q diagram analysis belongs to Professor Adrian Bejan, who first proposed it in 1977. In addition, many instances in the literature are given to indicate disputes for the entransy principle by oppositionists of ?entransy? from various countries.
Comments on “Magnetohydrodynamic flow of nanofluid over permeable stretching sheet with convective boundary conditions”
Authors: Awad Mohamed
Published: April 2020

Discussion is presented on Hayat et al. [1]?s paper, where the researchers analyzed the MHD nanofluid flow past permeable stretching sheet. This discussion illustrates that there is a discrepancy in the coefficient of thermophoretic diffusion and coefficient of Brownian diffusion units utilizing the concentration and energy equations.
Experimental Comparison of Speed-Dependent Rolling Coefficients in Small Cycling Tires
Authors: Baldissera Paolo , Delprete Cristiana , Rossi Mattia , Zahar Anatolii
Published: April 2020

In this article, the methodology and results of an experimental campaign on small and slick bicycle tires are presented. The test was developed to compare the rolling resistance of tires to be used in high-speed competitions for streamlined human-powered vehicles. After an explanation of the theoretical background for the measurement, the test-rig and the adopted procedure to measure and subtract aerodynamic effects are presented. The obtained data show that the rolling resistance coefficient has a nonlinear dependency from the speed between 45 and 145 km/h. The data comparison points out a decrease in rolling losses up to 54% by switching from a butyl to latex inner tube on the same tire, whereas no significant difference is detected between the latex tube and tubeless configuration. An estimation of the impact on racing performance is provided, showing that selecting the best option could save up to 19% of the overall effort energetic cost, which means a higher final speed can be achieved with the same rider effort. Finally, a speculative analysis is proposed that considers different functions to fit the obtained data, pointing out the need for experimental measurements on the very-low-speed region to achieve a better understanding of the entire rolling resistance behavior with respect to speed.
Skolledarskap i Sverige: en forskningsöversikt 2014–2018
Authors: Norqvist Lars , Isling Pär Poromaa
Published: April 2020

The purpose of this research overview is to understand the main contemporary research objects that characterizes the research field of school leadership in Sweden. Published literature within the field between 2014 and 2018 together with a mapping of research interests from 99 university teachers in the state funded education programme for principals, form the understandings of the field. The results indicate that the field is constituted by the interests of foremost understanding governance, policy, inspection and school leaders work and pedagogical leadership. A need of systems thinking, investigations of skills and competences, and lack of critical research are examples that calls for new directions in future studies within the field.
Hardware Implementation of Parallelized Fuzzy Adaptive Resonance Theory Neural Network
Authors: Tymoshchuk Pavlo , Shatny s.
Published: April 2020

A hardware implementation design of parallelized fuzzy Adaptive Resonance Theory neural network is described and simulated. Parallel category choice and resonance are implemented in the network. Continuous-time and discrete-time winner-take-all neural circuits identifying the largest of M inputs are used as the winner-take-all units. The continuous-time circuit is described by a state equation with a discontinuous right-hand side. The discrete-time counterpart is governed by a difference equation. Corresponding functional block-diagrams of the circuits include M feed-forward hard- limiting neurons and one feedback neuron, which is used to compute the dynamic shift of inputs. The circuits combine arbitrary finite resolution of inputs, high convergence speed to the winner-take-all operation, low computational and hardware implementation complexity, and independence of initial conditions. The circuits are also used for finding elements of input vector with minimal/maximal values to normalize them in the range [0,1].
Development of Digital Compass Based on AVR Microcontroller and MEMS Accelerometer- Magnetometer Module LSM303DLHC
Authors: Holovatyy A. , Teslyuk V. , Kolesnyk K. , Tabala V.
Published: April 2020

In the paper, the digital compass based on AVR microcontroller has been developed using MEMS accelerometer-magnetometer LSM303DLHC. The structure and hardware of the digital compass have been developed. The calibration algorithms of the accelerometer and magnetometer of the LSM303DLHC module have been described. The calculation algorithm of the pitch and roll angles has been described. The heading calculation algorithm of the digital compass without tilt compensation and with tilt compensation has been described. The operation algorithm and embedded software of the digital compass have been developed. The model and prototype of the digital compass have been created. The simulation and operation test of the developed digital compass have been performed.
Role of ACE2/TMPRSS2 genes regulation by intestinal microRNA isoforms in the COVID-19 pathogenesis
Authors: Nersisyan SA , Shkurnikov MYu , Osipyants AI , Vechorko VI
Published: April 2020

Coronavirus SARS-CoV-2, the cause of the COVID-19 pandemic, enters the cell by binding the cell surface proteins: angiotensin-converting enzyme 2 (ACE2) and transmembrane serine protease 2 (TMPRSS2). The expression of these proteins varies significantly in individual organs and tissues of the human body. One of the proteins’ expression regulation mechanisms is based on the activity of the microRNA (miRNA) molecules, small non-coding RNAs, the most important function of which is the post-transcriptional negative regulation of gene expression. The study was aimed to investigate the mechanisms of the interactions between miRNA isoforms and ACE2/TMPRSS2 genes in the colon tissues known for the high level of expression of the described enzymes. The search for interactions was performed using the correlation analysis applied to the publicly available paired mRNA/miRNA sequencing data of colon tissues. Among the others, such miRNAs as miR-30c and miR-200c were identified known for their involvement in the coronavirus infection and acute respiratory distress syndrome pathogenesis. Thus, new potential mechanisms for the ACE2 and TMPRSS2 enzymes regulation were ascertained, as well as their possible functional activity in a cell infected with coronavirus.
Paradigma Baru Tradisi â€œAntar Ajungâ€ Pada Masyarakat Paloh, Kabupaten Sambas
Authors: Aslan Aslan , Sihaloho Nahot Tua Parlindungan , Nugraha Iman Hikmat , Karyanto Budi , Zakaria Zukhriyan
Published: April 2020

The constant change of human life from the agricultural era, industrial era, and the present era which is known as information era has come with great transformation in new faces. In the meantime, there is a living tradition within the Paloh community that does not rot through the changes of time called Antar Anjung. This research is qualitative with a descriptive method. The results showed that Antar Ajung which is carried out by the Sambas people, particularly the Paloh community, historically came from the tax paid to Majapahit kingdom who was in power over Sambas at that time, it was transported through a river on sailboats. However, since the Sambas Sultanate came to power, the payment was no longer obliged by the Sultan of Sambas, the tradition was still practiced by the Paloh community whatsoever, especially in Tanah Hitam, Matang Danau, Matang Putus, Kalimantan and Arung Parak in a new name, Antar Ajung. Antar Ajung ritual has become entrenched in the lives of the Paloh community, it has been done for tens of years until now, except those in Matang Danau Village, who have changed the tradition into Berobat Kampung.

 

Perubahan yang terus berlanjut dari masa pertanian, industri dan masa sekarang yang dikenal dengan informasi mengalami perubahan yang drastis dengan wajah yang baru, tetapi budaya di masyarakat Paloh tidak lekang dimakan zaman. Kajian dalam penelitian ini adalah kualitatif dengan metode deskriptif. Hasil penelitian menunjukkan bahwa, sejarah Antar Ajung yang dilakukan oleh masyarakat Sambas pada umumnya dan masyarakat Paloh pada khususnya, berasal dari upeti yang dibayar kepada kerajaan Majapahit yang berkuasa di Sambas melalui sarana transportasi sungai dengan menggunakan perahu layar. Namun, sejak kesultanan Sambas berkuasa di Sambas, maka pembayaran dari upeti tersebut tidak dilakukan di masa kerajaan Sultan Sambas, tetapi masih dilakukan oleh masyarakat Paloh, khususnya di Tanah Hitam, Matang Danau, Matang Putus, Kalimantan dan Arung Parak yang dalam wajah yang baru, yakni Antar Ajung. Ritual Antar Ajung sudah membudaya dalam kehidupan masyarakat Paloh, yang sudah mencapai puluhan tahun dan bahkan masyarakat Paloh masih melaksanakan ritual tersebut, kecuali Desa Matang Danau, telah mengalami perubahan menjadi Berobat Kampung.
THE DRIVERS OF RURAL ACCOMMODATION DEVELOPMENT IN ROMANIA: A PRELIMINARY STUDY
Authors: POP Cornelia , GEORGESCU Maria-Andrada , BALINT Cristina
Published: April 2020

Modern rural tourism is an umbrella concept, including a wide range of (niche) type tourism related to the countryside/rural areas. The central attractions of rural tourism are induced by the closeness to nature and new cultural experiences related to (local) history and intangible heritage. The interest for a rural destination being increased by an environment considered appealing from natural and aesthetic viewpoints, allowing for various forms of recreation. This preliminary study answers the following question: which are the drivers of the accommodation development in rural areas in Romania? taking into consideration only the potential tourist attractions that could be identified based on official records (e.g. historic monuments, the status of resort for a given locality, the registered vineyards, the two rankings from 2008 and 2012). The overall conclusion of the study is that the potential tourist attractions have a relatively small influence on the development of Romanian rural lodgings. Therefore, more factors should be added in order to understand the accommodation development in rural areas in Romania.
JEL Classification: L83
Hubungan antara Kelekatan pada Orang Tua dan Teman Terhadap Subjective Well-being Remaja yang Ditinggalkan Orang Tua Bekerja Sebagai Pekerja Migran
Authors: Raissachelva Elzza Priscania , Handayani Eko
Published: April 2020

Perpisahan dalam jangka panjang yang dialami oleh remaja dan orang tua yang merupakan pekerja migran dapat membuat kualitas hubungan yang terjalin mengalami perubahan dan tidak lagi menjadi dekat. Ketika remaja tidak memiliki hubungan yang dekat dengan orang tua, mereka mulai menjalin kedekatan dengan teman sebagai gantinya. Oleh karena itu, tujuan penelitian ini adalah untuk melihat hubungan antara kelekatan pada orang tua dan teman sebaya dengan subjective well-being (SWB) remaja yang ditinggalkan orang tua bekerja sebagai pekerja migran. Partisipan penelitian terdiri dari 42 remaja berusia 12 - 15 tahun. Kedekatan dengan orang tua dan teman diukur menggunakan alat ukur Inventory of Parent and Peer Attachment, sementara subjective well-being diukur menggunakan alat ukur Satisfaction with Life Scale, Positive and Negative Affect Schedule, dan Subjective Happiness Scale. Hasil penelitian menunjukkan bahwa terdapat hubungan positif yang signifikan antara kelekatan pada ayah dengan kepuasan hidup dan kebahagiaan serta hubungan negatif yang signifikan antara kelekatan pada ayah dengan afek negatif. Selain itu terdapat hubungan positif yang signifikan antara kelekatan pada ibu dengan komponen afek positif dan hubungan positif yang signifikan antara kelekatan pada teman sebaya dengan kebahagiaan. Hal ini dapat disimpulkan bahwa semakin secure kelekatan dengan ayah membuat remaja semakin puas dan bahagia serta membuat semakin rendahnya afek negatif yang dirasakan. Semakin secure kelekatan dengan ibu juga membuat remaja memiliki afek positif yang tinggi dan semakin secure kelekatan dengan teman sebaya membuat remaja semakin bahagia.
Sikap terhadap Pensiun, Perencanaan Pensiun, dan Kualitas Hidup pada Karyawan dalam Masa Persiapan Pensiun
Authors: Iskandarsyah Aulia , Setyowibowo Hari
Published: April 2020

Tujuan dari penelitian ini adalah untuk mengevaluasi hubungan antara sikap terhadap pensiun, perencanaan pensiun, dan kualitas hidup pada karyawan dalam Masa Persiapan Pensiun (MPP). Penelitian ini menggunakan desain cross-sectional. Sebanyak 300 karyawan dalam masa persiapan pensiun di PT. X dijaring dengan menggunakan teknik purposive sampling dalam 3 termin. Partisipan mengisi form demografis standar, skala sikap terhadap pensiun, skala perencanaan pensiun, dan WHOQOL-BREF. Hasil dari analisis regresi menunjukkan bahwa perencanaan pensiun adalah prediktor yang signifikan untuk domain fisik (β=0,22, p=0,01), domain psikologis (β=0,4, p=0,01), dan domain lingkungan (β=0,24, p=0,01) dari kualitas hidup, sementara sikap terhadap pensiun tidak secara signifikan memprediksi kualitas hidup. Hasil penelitian ini menunjukkan bahwa perencanaan pensiun adalah prediktor dari kualitas hidup karyawan yang sedang berada dalam masa persiapan pensiun. Selain itu, pentingnya menyediakan program persiapan pensiun secara adekuat dan mencukupi, memungkinkan para karyawan membuat perencanaan pensiun secara lebih baik.
La acción de secuestro prendario en el marco de relaciones de consumo
Authors: Galván Ezequiel Rodrigo , Lueiro Campos Gustavo Daniel
Published: April 2020

Se analiza la procedencia de la acción de secuestro (art. 39 Ley 12.962) en el marco de relaciones de consumo y la compatibilidad de su carácter inaudita parte (sin derecho de defensa del consumidor ejecutado) con el régimen constitucional y de orden público protectorio de usuarios y consumidores, recuperando los estándares establecidos en la jurisprudencia de la Suprema Corte de Provincia de Buenos Aires y de la Corte Suprema de Justicia de la Nación como directrices interpretativas.
Proceso cultural libertador y poder constituyente. La constitución como producto cultural. En memoria de Joaquín Herrera Flores
Authors: Medici Alejandro
Published: April 2020

En el presente texto proponemos una comprensión de las constituciones como productos culturales y de los procesos cons-tituyentes como procesos culturales, tomando como marco la teoría crítica de la cultura de Joaquín Herrera Flores, desarro­llada en algunas de sus obras mas significativas: “El proceso cultural. Materiales para la creatividad humana”, “Los derechos humanos como productos culturales.
Marginalisasi Kesejahteraan Hewan Akibat Ambisi Peningkatan Ekspor Minyak Sawit di Indonesia
Authors: Muh. Kamim Anggalih Bayu , Abrar Muhammad Irsyad
Published: April 2020

The Indonesia Government has taken various measures to counter the European Union's policies which are considered will harmful the efforts to increase palm oil exports. However, the efforts of the Indonesian government to maintain the image of the palm oil commodity considered a hiding act from animal and human conflicts. One of which arises from the expansion of oil palm plantations. This study would explore the outbreak of animal and human conflicts affected by the expansion of oil palm plantations due to the ambition of increasing palm oil export. This research was a desk study conducted by tracing various journal articles, reports of oil palm plantation guard organizations, reports of civil society organizations related to deforestation of oil palm expansion and various reports of civil society organizations about cases between animal and human conflict. The results of the study showed that there had been a misunderstanding in understanding the European Union's decision, which would not impact on the decline in palm oil exports. Sustainable palm oil governance is not well implemented by oil palm companies and the Indonesian Government so that marginalizing animal life. The intensity of animal-human conflict continues to occur in various areas of oil palm concessions that lead to the threat wild animal life.

Keywords: Palm Oil Exports, Animal-Human Conflict, Animal Welfare

Abstrak

Pemerintah Indonesia melakukan berbagai cara untuk mengkonter kebijakan Uni Eropa yang dianggap akan merugikan upaya peningkatan ekspor kelapa sawit. Akan tetapi, upaya pemerintah Indonesia menjaga citra komoditas minyak kelapa sawit seolah menutupi permasalahan konflik satwa dan manusia yang salah satunya muncul akibat ekspansi perkebunan sawit. Kajian ini akan mendalami merebaknya konflik satwa dan manusia yang terdampak ekspansi perkebunan sawit akibat ambisi peningkatan ekspor crude palm oil. Penelitian ini adalah desk study yang dilakukan dengan melakukan penelusuran terhadap berbagai artikel jurnal, laporan organisasi pengawal perkebunan sawit, laporan organisasi masyarakat sipil yang terkait dengan deforestasi akibat ekspansi sawit, dan berbagai laporan organisasi masyarakat sipil mengenai kasus konflik antara satwa dan manusia. Hasil kajian menunjukan bahwa telah terjadi kesalahpahaman dalam memahami keputusan Uni Eropa yang sama sekali tidak akan berdampak pada berkurangnya ekspor minyak kelapa sawit. Tata kelola sawit berkelanjutan tidak dilaksanakan dengan baik oleh perusahaan sawit dan Pemerintah Indonesia, sehingga meminggirkan peri kehidupan hewan. Intensitas konflik satwa-manusia terus terjadi di berbagai wilayah konsesi sawit yang berujung pada keterancaman peri kehidupan binatang liar

Kata Kunci: Ekspor Sawit, Konflik Satwa-Manusia, Kesejahteraan Hewan
A construção da autoestima e afirmação das identidades negras nas crianças quilombolas
Authors: Silva José Artur do Nascimento , Oliveira Julvan Moreira de
Published: April 2020

Ao realizarmos contato com uma escola localizada em uma tradicional comunidade quilombola, na região de União dos Palmares - AL, e ouvirmos as narrativas das crianças com um imaginário que desvalorizava a identidade negra, objetivamos conhecer por meio de pesquisa bibliográfica especificamente sobre as relações étnico-raciais, que pudesse dar um suporte teórico necessário para se conhecer e compreender as atuais discussões sobre o racismo, o preconceito e a discriminação racial, sobretudo no campo educacional. Este estudo não identificou trabalhos delimitados sobre a construção da identidade étnico-racial no universo da educação quilombola. Conclui-se que as narrativas apresentadas pelas crianças em nosso contato com a comunidade quilombola Muquém necessitam ter a oportunidade de construir relacionamentos saudáveis consigo mesmas e com seus pares e que estejam fundamentadas com a valorização da identidade quilombola
Identidades Quilombolas: estudo de caso com as crianças da comunidade de Nova Esperança
Authors: Santos de Matos Wesley , Gonçalves Eugênio Benedito
Published: April 2020

Neste artigo, apresentamos algumas considerações de uma pesquisa do tipo estudo de caso, realizada com um grupo de crianças de uma escola quilombola no interior do estado da Bahia. Discutimos como elaboramos e realizamos a pesquisa, especificamente no que tange aos instrumentos que utilizamos para compreender as percepções das crianças sobre ser quilombola. Empregamos desenhos produzidos pelas crianças e entrevistas para a produção dos dados. As conclusões assinalam a importância dos desenhos para o processo de compreensão do reconhecimento construído pelas crianças pesquisadas.
Identifikasi Jenis dan Prevalensi Penyakit Karang pada Terumbu Karang di Perairan Pemuteran
Authors: Ariszandy Putu Hernanda Krishna , Nurweda Putra I Dewa Nyoman , Widiastuti Widiastuti
Published: April 2020

Coral reef ecosystems play an important role in many aspects of human beings as one third of Indonesian population are living in coastal areas and depend their lives on this ecosystem. However, this ecosystem is threatened by various factors, one of them is coral disease. Increased sea water temperature, sedimentation, and pollutants can increase the growth of pathogenic microorganisms that cause coral disease. The data of coral diseases was collected byqpurposive samplingpmethod which was chosen based on the presence of coral reefs and coastal conditions at each station in a belt transect of 20 x 2 m. Furthermore, coral diseases and coral species were identified based on identification books. The prevalence of coral disease was calculated by divided the total number of coral colonies with the total number of diseased coral then multiplied by 100%. Results showed that the highest coral disease prevalence were at site 3 and 4. Meanwhile, site 1 and 2 were lower than those sites. It was suggested that the coral disease prevalence is related to the domestic input from the coastal. As site 1 and 2 were relatively low populated than site 3 and 4.
Estimasi total simpanan karbon Pada Padang Lamun di Kawasan Pantai Karang Sewu, Gilimanuk, Bali
Authors: Vitri Lestari Komang Indah , Hendrawan I Gede , Faiqoh Elok
Published: April 2020

Pertumbuhan sektor industri di berbagai Negara yang relatif cepat dapat meningatkan emisi dari Gas Rumah Kaca (GRK) seperti karbondioksida (CO2) di atmosfer. Salah satu aspek dalam mengurangi gas karbon yaitu dengan pemeliharaan hutan dan lautan untuk menyimpan karbon. Salah satu sumberdaya laut yang cukup potensial sebagai menyimpan gas CO2 adalah padang lamun. Lamun sendiri memiliki peran utama yaitu sebagai penyimpan karbon dilautan (Carbon sink) atau dikenal dengan istilah Blue Carbon dan digunakan untuk proses fotosintesis. Tujuan penelitian ini untuk mengetahui simpanan karbon pada lamun di bagian atas substrat (daun), bagian bawah substrat (akar dan rhizoma) dan pada setiap jenis lamun yang didapat di Pantai Karang Sewu. Pada penelitian ini penentuan titik sampling adalah sebanyak 6 stasiun untuk pengambilan sampel lamun dilakukan secara Purposive sampling, mengacu pada kerapatan lamun yang diasumsikan bisa mewakili atau menggambarkan keadaan perairan tersebut. Penelitian ini menggunakan metode pengabuan kering yang dilakukan dengan penghancuran komponen sampel pada suhu 500?C. Hasil penelitian menunjukkan simpanan karbon pada bagian atas substrat (daun) sebesar 0.062 ton, dan pada bagian bawah substrat (rhizoma dan daun) sebesar 0.200 ton. Hasil simpanan karbon pada bagian bawah substrat lebih tinggi daripada atas substrat karena adanya bahan organik yang terendap pada substrat menjadi faktor penyerapan karbon pada lamun bagian bawah substrat. Jenis lamun yang ditemukan di Pantai Karang Sewu yaitu Enhalus acoroides dengan simpanan karbon tertinggi yaitu sebesar 0.19874 ton, simpanan karbon lamun jenis Thalassia hemprichii sebesar 0.06247 ton dan terendah pada lamun jenis Halodule uninervis yaitu sebesar 0.00022 ton.
Karakteristik Vertikal Salinitas dan TDS di Perairan Amed dan Tulamben, Karangasem, Bali
Authors: Putra Pratama Gede Indra , Hendrawan I Gede , Gede Astawa Karang I Wayan , Chappuis Alexis
Published: April 2020

Amed and Tulamben waters are marine tourism areas located in the western part of the Lombok Strait, which have enormous biodiversity and conservation potential. The abundant biodiversity in the area is because of the process of transporting water masses vertically carrying biogenic and non-biogenic components. Salinity and TDS have an important role in regulating the process of bio-geo-chemical waters. Thus, it can be a parameter in understanding the vertical characteristics of the waters. The purpose of this research was to determine the vertical characteristics of temporal salinity and TDS in these waters. Data was collected for 14 days (February 20 to March 5, 2019) at two locations, namely Batu Niti and Emerald. The data collection method was carried out by reducing the CTD to a depth of approximately 95 meters with a measurement interval of 10 minutes for 2 to 3 hours per day. The results showed that salinity and TDS had a very strong correlation (r = 0.9995). Salinity concentrations ranged from 31.83 to 34.19 PSS, and TDS concentrations ranged from 31,211.12 to 33,396.71 mg l-1. The halocline layer had a gradient characteristic ? 0.01 PSS m-1 found from a depth of 20 meters, while a homogeneous layer was formed above it to a depth of 6 meters. The halocline layer had a higher level of water mass stability (N) than the homogeneous layer. The maximum rate of change in salinity and TDS was found at a depth of 70 meters. The great variability of salinity and TDS in the water column was indicated by the influence of internal tidal currents. Before the highest tide conditions, salinity and TDS have highest variability that compared to the highest tide condition and after its condition.
European experience in transition to circular economy
Authors: Ratner S.V.
Published: April 2020

Subject. The article considers the concept of circular economy, which has originated relatively recently in the academic literature, and is now increasingly recognized in many countries at the national level. In the European Union, the transition to circular economy is viewed as an opportunity to improve competitiveness of the European Union, protect businesses from resource shortages and fluctuating prices for raw materials and supplies, and a way to increase employment and innovation.
Objectives. The aim of the study is to analyze the incentives developed by the European Commission for moving to circular economy, and to assess their effectiveness on the basis of statistical analysis.
Methods. I employ general scientific methods of research.
Results. The analysis of the EU Action Plan for the Circular Economy enabled to conclude that the results of the recent research in circular economy barriers, eco-innovation, technology and infrastructure were successfully integrated into the framework of this document. Understanding the root causes holding back the circular economy development and the balanced combination of economic and administrative incentives strengthened the Action Plan, and it contributed to the circular economy development in the EU.
Conclusions. The measures to stimulate the development of the circular economy proposed in the European Action Plan can be viewed as a prototype for designing similar strategies in other countries, including Russia. Meanwhile, a more detailed analysis of barriers to the circular economy at the level of individual countries and regions is needed.
Assessment of Russian non-financial companies' systemic risk in financial stability monitoring
Authors: Parfenova M.V. , L'vova N.A.
Published: April 2020

Subject. The article addresses the issues of financial stability monitoring as part of macroprudental supervision and regulation. The study concerns non-financial companies as a source of systemic risk for the national financial system. There are a lot of discussions about monitoring of systemically important borrowers under the auspices of the Russian Regulator.
Objectives. Research is aimed at developing a methodology for assessing the systemic risk of Russian non-financial companies.
Methods. We propose a set of indicators to assess the systemic risk derived from non-financial companies in Russia. The sample of indicators corresponds with the leading international practice and available data. The dynamic analysis of the sampled indicators should be conducted. We should focus on separate indicators and for a comprehensive view using a new composite indicator of systemic risk.
Results. We devised a methodology for assessing the systemic risk of Russian non-financial companies. The relevance of the methodology was proved with empirical data. The sample includes 3,766 companies per year. The proposed indicators were proved to reflect an adequate change in the tested period (the year before, during and after financial instability).
Conclusions and Relevance. Our methodology contributes to the current scientific discussion on new directions for assessing the financial stability. The results can be applied to the analytical practice, including the macroprudential supervision and regulation.
Correlation between the results of social and economic development and parameters of the structure of Russian financial system
Authors: Lebedev A.V. , Razumovskaya E.A.
Published: April 2020

Subject. The article investigates the structural parameters of the financial system, which enable to assess the quality of its structure. Objectives. We make attempts to test the hypothesis about the availability of relationship between the structure of the Russian financial system and the results of socio-economic development. Methods. To analyze the structure of the financial system of Russia, we employ the OECD international methodology and the data of the Central Bank of the Russian Federation. Results. The paper presents our own interpretation of macroeconomic identical relation reflecting the factor sources of economic growth; discloses the significance of capital as a financial parameter, which is subject to transformation under the influence of advanced digital technologies; includes the coefficients, which we developed for a qualitative analysis of the financial system structure, taking into account the specifics of the Russian national economy. One of the said coefficients (the actual indicator of financial potential) is intended to reflect the level of financial digitalization. Conclusions. Given the current controversial opinions on the impact of the financial system’s structure on economic growth, we believe that during the further study of the issue, it is important to rely not only on international methods, but also on domestic scientific developments, like the presented coefficients 5–9.
Research on tax administration reforms in the Russian practice
Authors: Evnevich M.A. , Ivanova D.V.
Published: April 2020

Subject. The article deals with the scope of application of digital technologies to tax monitoring and administration. Digitalization plays an important part in activities performed by the Federal Tax Service and helps reduce the administrative workload on both taxpayers and tax authority. The use of digital communication channels saves our time, because it allows to submit tax returns and send letters online. Besides, it enhances the efficiency of in-office audits and helps identify eventual tax violations.
Objectives. We review a set of digital services and technologies used by the Federal Tax Service, their effectiveness, and present our findings on taxpayers’ attitude to ongoing digital reforms.
Methods. The validity and argumentation are based on official statistics of the Federal Tax Service concerning the dynamics of tax revenues and inspections, quantitative research through questionnaires and analysis of the findings.
Results. We examine a range of digital services and technologies, including the Automated Control System – Value Added Tax, a new type of cash registers – Automated Information System Marking, Federal Government Information System – Unified State Register Civil Registry Office, and personal accounts of taxpayers. Moreover, the articles presents the results of a survey among owners and top managers of companies, identifying their opinion on the coming taxation reforms.
Conclusions and Relevance. Digitalization helped the Federal Tax Service to significantly increase the efficiency of tax audits, while reducing the frequency of tax audits and the number of fly-by-night companies and the likelihood of using informal tax administration schemes. However, authorities should find a balance between the enhancement of the taxation system and their relationship with businesses.
The economic substance of appropriated funds: The conceptual framework
Authors: Lunyakova N.A.
Published: April 2020

Subject. This article discusses the theoretical issues of the essence of the budget fund.
Objectives. The article aims to generalize the essence and highlight the main characteristics of the budget fund.
Methods. For the study, I used a systems approach.
Results. The article describes the general and specific features of the budget fund as a type of financial fund, analyzes the budget fund size, and particularizes ways and approaches to ensure the maneuverability of the budget fund at the stages of its formation and use.
Conclusions and Relevance. In today's dynamic socio-economic development of the State, objective prerequisites for the development of a conceptual approach to determining the essence, place and role of budget funds in the financial system of the State are getting formed. The results of the study can be used to improve the processes of formation, distribution, and use of financial resources.
Performance Analysis With Wireless Lan Networks Using The Quality Of Service Method
Authors: Wahyudi Anggy , Hadi Aulia Fitrul , Sovia Rini
Published: April 2020

The use of the internet currently has very high mobility, both used for streaming, browsing, downloading and uploading data. Along with the changing times and the demands for information services that are fast, precise, and accurate, making the network a major need, especially in the world of education. The use of internet facilities requires management to manage each data. For this reason, there is a need for Quality of Service on the network to optimize the distribution of networks evenly and fairly for each client and network user. The results of the study show that network quality by implementing Quality of Service is more optimal and network distribution is more even and stable
Immigration Challenges of the Past Decade and Future Reforms
Authors: Marouf Fatma
Published: April 2020

Over the past decade, immigrants have faced numerous challenges in the United States, including a dramatic increase in deportations, the expansion and privatization of immigration detention, major changes to the asylum system combined with drastic cutbacks in refugee admissions, and a new wave of racism and xenophobia. This Article discusses these challenges and explores possible ways to address them in 2020 and beyond.
A IDENTIDADE INDÍGENA E A AFIRMAÇÃO ÉTNICA: UM PERCURSO TRAÇADO PELA RELIGIÃO
Authors: Peixoto José Adelson Lopes
Published: April 2020

O Dossiê reúne textos que presenteiam o ambiente acadêmico pela qualidade e relevância dos temas abordados e pelas contribuições baseadas em reflexões fundamentadas e ponderadas, muitas das quais são frutos de ampla pesquisa de campo e de vivências em comunidades indígenas. Na tentativa de resumir este número em uma frase, eu diria que apresenta discussões sobre a heterogeneidade da religiosidade indígena, procurando evidenciar o sagrado como elemento formador da identidade indígena e potencializador da afirmação e do pertencimento étnico.
AGÊNCIAS ENCANTADAS: COSMOPOLÍTICAS INDÍGENAS E SERTANEJAS
Authors: Herbetta Alexandre Ferraz
Published: April 2020

Este texto busca explorar um aspecto pouco estudado do universo religioso e político presente nas vidas de populações indígenas do alto sertão alagoano, e, especialmente, trata do povo Kalankó. Para isso, por meio de dados etnográficos que se estendem de 2001 a 2012, apresenta o potencial de agenciamento dos encantados, entidades espirituais relacionadas aos antepassados que atuam concretamente na região, promovendo transformações, como, por exemplo uma retomada territorial. Deste modo, o texto apoia-se na noção de cosmopolítica de Isabelle Stengers e Marisol de La Cadena, que buscam pensar no agenciamento de entidades sobre humanas e na, consequente, potencialidade política presente nestes grupos e agenciamentos. O objetivo do texto, por fim, é o de refletir acerca de uma cosmopolítica indígena e sertaneja, baseada na agência encantada e, assim, questionar políticas indigenistas formuladas para a região, baseadas apenas em categorias modernas, de outra matriz epistemológica, como religião e política, ligadas ao Estado moderno. Deste modo, busca-se problematizar a política indigenista brasileira no sertão nordestino.
COM UM LAÇO DE FITA VERDE AMARRADO NA GARGANTA: COSMOLOGIAS E RITUAIS DE INTERAÇÃO SIMBÓLICA DOS XUKURU NA CONTEMPORANEIDADE
Authors: Guerra Paula
Published: April 2020

Neste artigo procuramos explicar e compreender as cosmologias e rituais de interação simbólica do povo Xukuru tomando como objetivo o resgate de uma abordagem (des)construtivista das teorias clássicas acerca do Sul. Trata-se de um exercício preliminar que toma como foco de análise das relações que estas populações mantêm com o sagrado no mundo contemporâneo através de festividades. Recorrendo à antropologia visual e à análise de conteúdo de documentos videográficos, almejamos contribuir para um aumento do conhecimento das dinâmicas, dos espaços e das formas de sociabilidade corporizadas no Toré e na festa do dia de São João junto dos Xukuru como reveladoras e atualizadoras de memórias, de heranças e de reconstruções identitárias.
MAGIAS DO KANAIMÎ
Authors: Rabelo Filho Manoel Gomes
Published: April 2020

Pretende-se neste artigo apresentar as realizações do Kanaimî a partir das representações dos Macuxi e Wapichana da Região do Circum-Roraima. Nessas representações estão presentes as relações violentas, os rituais e os fatos ocorridos que fazem dele um ser temido pelos diversos povos dessa região. Essas representações se configuram como uma resposta às condições culturais desses povos e ao mesmo tempo uma condição de suas existências. Investigaremos sobre os rituais e ações do Kanaimî, a partir da concepção de magia de Marcel Mauss. Os conceito elaborados por Mauss serviram de parâmetros para uma comparação e análise. Essas representações acerca dos rituais e de suas violências podem significar uma relação de identidade, mesmo que se pense em processos de oposição em relação a ele, considerando-o como um ser mal. Analisaremos se existe um processo de identidade associador entre os povos desta região com o Kanaimîpara entender alguma forma de autoidentificação dos próprios povos e de suas relações com os outros povos da região.
O DISCURSO RELIGIOSO NA MÍDIA DE MASSA
Authors: Campos Breno Martins , Zangari Felipe
Published: April 2020

O objetivo deste artigo é oferecer uma leitura analítica de dados recentes sobre a presença e a intensidade da difusão de conteúdo religioso por meio do sistema de televisão aberta no Brasil. Sabendo que a recepção de conteúdo via TV aberta é ainda uma poderosa ferramenta de comunicação de massa, relacionamos a presença de conteúdo religioso nesse modal de mídia com o conceito de proselitismo, propondo uma reflexão crítica sobre a importância da presença no ambiente televisivo para as denominações religiosas. Para tanto, utilizamos dois instrumentos metodológicos: a leitura analítica de dados estatísticos já disponíveis e uma revisão de bibliografia com referências que ajudam a embasar teoricamente a discussão. Procuramos demonstrar que a inserção das comunidades religiosas no ambiente midiático é uma ferramenta profícua para a implantação de uma estratégia de proselitismo; e que, em contrapartida, a exposição de diversas e múltiplas denominações leva a um ambiente concorrencial que induz facilmente ao trânsito de fiéis entre comunidades.
Pengukuran User Experience Pada Aplikasi Pasbhara Dengan Metode Heuristic Evaluation
Authors: Akhsani Rafika , Nalendra Adimas Ketut , Mujiono M , Ismanto Ismanto
Published: April 2020

Kegiatan pramuka merupakan salah satu kegiatan ekstrakurikuler pada suatu sekolah. Aplikasi Phasbara adalah aplikasi berbasis android yang dibuat untuk membantu anggota pramuka dalam mendalami materi SAKA Bayangkara. Untuk mengetahui apakah aplikasi sudah sesuai dengan kebutuhan pengguna memerlukan sebuah evaluasi terhapat aplikasi itu sendiri. Penelitian ini bertujuan untuk mengevaluasi usabilitas aplikasi phasbara dan memberikan usulan perbaikan guna meningkatkan kemudahan penggunaan aplikasi Pasbhara. Pada penelitian ini menggunakan metode Heuristic Evaluation. Responden adalah anggota SAKA Bayangkara di Blitar. Data diperoleh melalui penyebaran kuesioner. Hasil penelitian menunjukkan bahwa rule-rule dalam metode heuristic evaluation yang digunakan pada penelitian yaitu Visibility of system status, Match between system and the real world, User control and freedom, Consistency and standards, Recognition rather than recall, dan Flexibility and efficiency of use mendapatkan nilai presentase persetujuan dengan rating skala setuju. Ini berarti bahwa desain antarmuka aplikasi phasbara sudah baik. Akan tetapi pada rule help and documentation juga mendapatkan persentase persetujuan dengan rating skala setuju. Ini berarti bahwa dari sisi bantuan penggunaan aplikasi masih perlu disempurnakan kembali. 
A Temperature-Sensitive RFID Tag for the Identification of Cold Chain Failures
Authors: Vivaldi Federico Maria , Melai Bernardo , Bonini Andrea , Sajama Noemi Violeta Poma , Salvo Pietro , Kirchhain Arno , Tintori Simone , Bigongiari Adriano , Bertuccelli Fabrizio , Isola Gabriele , Di Francesco Fabio
Published: April 2020

Quality and safety of the cold chain undergo strict international regulations that identify storage and shipping temperatures. In fact, the improper handling and transportation of temperature-sensitive products such as food and pharmaceuticals may have harmful effects on human health and negative economic impact. A passive RFID tag modified with copper-droped ionic liquid melting point, which can be tuned by changing the concentration of dopant.
Straightforward Preparation of Supramolecular Janus Nanorods by Hydrogen Bonding of End-Functionalized Polymers
Authors: Han Shuaiyuan , Pensec Sandrine , Lorthioir Cédric , Jestin Jacques , Guigner Jean-Michel , Rieger Jutta , Stoffelbach François , Nicol Erwan , Colombani Olivier , Bouteiller Laurent
Published: April 2020

Janus cylinders are one-dimensional colloids that have two faces with different compositions and functionalities and are useful as building blocks for advanced functional materials. Such anisotropic objects are difficult to prepare with nanometric dimensions. Here we describe a robust and versatile strategy to form micrometer long Janus nanorods with diameters in the 10-nanometer range, by self-assembly in water of end-functionalized polymers. For the first time, the Janus topology is not a result of the phase segregation of incompatible polymer arms, but is driven by the interactions between unsymmetrical and complementary hydrogen bonded stickers. It is therefore independent of the actual polymers used and works even for compatible polymers. To illustrate their applicative potential, we show that these Janus nanorods can efficiently stabilize oil-in-water emulsions.