bluuebunny/crossref_metadata_2025 huggingface dataset:
Estimación de la superficie afectada por inundaciones mediante polarimetría con imágenes radar de apertura sintética (SAR) Sentinel 1A en la cuenca hidrográfica del río Frío (Costa Rica)
Authors: Martínez-Barbáchano Rubén
Published: April 2023

Synthetic Aperture Radar (SAR) polarimetry is a remote sensing technique known for being applied to monitoring of land surface and water bodies. Polarimetry aims at charactering the land surface through the analysis of its response under different combinations of transmitting and receiving an- tennas polarization, called polarimetric channels. The use of cross-polarization (vertical/horizontal) proved to be efficient for estimating the extent of the floods between July 22nd and July 30th in the Frío river basin (Costa Rica). To that end, Sentinel-1 images from the European Space Agency have been used, with a workflow process and RGB composition that allowed to draw a clear distinction between flooded and permanent water bodies. The use of optical imagery for flood mapping is limit- ed by weather conditions, specially by the presence of clouds. SAR measurements are independent of daytime and weather conditions, providing valuable information for monitoring flood events. Furthermore, flood extent is a critical factor for the calibration and validation of hydraulic models (Horritt, 2006). Flood extent can be also used for damage assessment and risk management and can be of benefit to rescuers during flooding (Corbley, 1999).
Construcción de una frontera en el oeste del obispado de Chiapa y Soconusco, 1650-1810. Una aproximación desde los SIG-H
Authors: Navarro-López América Alejandra
Published: April 2023

It was undertook an historical and cartographic investigation out on the limits of the border region of the Tuxtla Desert-Xiquipilas Valley, western frontier of the bishopric of Chiapa and Soconusco, in the south of New Spain, adjacent to the Captaincy General of Guatemala. The period of study begins in 1650, with the process of Composiciones de Tierras (1643) underway, and ends in 1810, at the end of the colonial period, with a territorial organization by Intendencias. From the analysis of documentary sources and cartography of the time, information was obtained and processed in a methodology designed for the orientation of geographic information systems towards history. The research allows us to analyze historically and geographically the processes of territorial appropria- tion through the use of land as strategies of demarcation and occupation in a frontier region.
Compatibilidad de soluciones PPP en línea considerando distintos tiempos de medición respecto a soluciones semanales SIRGAS
Authors: Moya-Zamora Jorge , Murillo-Méndez Arianna
Published: April 2023

Precise Point Positioning (PPP) online was carried out on a set of daily observation files belonging to 13 GNSS stations of continuous operation in Costa Rica, which were adapted to three-time intervals: 24 hours, 6 hours in the morning and 6 hours in the afternoon. The study was conducted between week 1934 and week 1986. The main objective was to determine the influence of the different time intervals on the PPP solutions obtained through the Canadian CSRS-PPP online service and their discrepancies with respect to the coordinates calculated weekly by the Sistema de Referencia Geodésico para las Américas (SIRGAS) and that are currently linked to the ITRF2014/IGb2014 solution. The results showed that the differences in the geocentric components, in addition to the time interval used in the processing, also depend on the geographical location, which represents an element to consider if users contemplate this online service as an option for computation of GNSS observations.
Desarrollo de una herramienta informática para el ajuste de redes geodésicas en la carrera de Ingeniería en Topografía y Geodesia de la Universidad Nacional, Costa Rica
Authors: Valverde Calderon Jose Francisco , Ramírez Núñez Manuel
Published: April 2023

This article has described the development of a computer program for the adjustment of geodetic networks, using the model of mediate observations. The program is the result of a research activity carried out, during the year 2021, within the School of Topography, Cadaster and Geodesy (ETCG), at the National University. The application resulting from the research provides to the ETCG with an open-source tool for the adjustment of geodetic networks, which allows improving the teaching and learning processes in the different courses of the Engineering in Topography and Geodesy career, in addition to facilitating the different research processes that are carried out in the Academic Unit. The development of a geodetic network adjustment program within the ETCG contributes to eliminating the costs associated with the purchase of licenses and strengthening the formulation of final graduation projects.
Contexto ambiental de los procesos de cambio de uso y cobertura del suelo en Calimaya, Altiplano Mexicano
Authors: Amorim Homem de Abreu Loureiro Guilherme , Escalona Valdez Rodrigo Antonio , Espinosa Rodríguez Luis Miguel , Juan Pérez José Isabel , Balderas Plata Miguel Ángel
Published: April 2023

The convergence of conventional agriculture, real estate investments and sand and gravel mining characterize Calimaya as one of the most negatively impacted municipalities of the Mexican altiplano by anthropic activities. The objective of this work was to analyse the geographical and environmental context of land use and land cover change (LULCC) processes in this Municipality. For this, the following indicators were estimated: the cover change rate proposed by Food and Agriculture Organization of the United Nations by using the land cover classes proposed by the Intergovernmental Panel on Climate Change. LULCC in the last decade (2010-2019) were: deforestation and advancement of potato crop in the Nevado de Toluca Flora and Fauna Protection Area; decrease in the process of occupation of cropland areas by settlements; and, soil degradation in abandoned mines.
Characteristics of thermally modified hardwood dust in determining workers’ occupational exposure
Authors: Čavlović Anka Ozana , Bešlić Ivan , Pervan Stjepan , Prekrat Silvana
Published: April 2023

Thermal modification of wood changes its mechanical properties, generally reducing its strength, such that it is more easily chipped during processing than untreated hardwood. This study presents specific parameters used in the determination of mass concentration of thermally modified (TM) hardwood by gravimetric and photometric methods. An optical device, the Split 2, was used in the active mode, of which the holder of the inhalable dust IOM (Institute of Occupational Medicine) filter was the input part. Side-by-side determination of the respirable and inhalable mass concentration was made using the Higgins-Dewell respirable dust cyclone and an inhalable dust IOM sampler. Side-by-side determination of inhalable and total dust mass concentration was made using an IOM and open-faced (OF) filter holder to establish an IOM / OF sampling ratio. A correction factor of 1.16 was calculated for applying the photometric method as the ratio of mass concentration determined by gravimetric and photometric methods. Minimal concentrations of respirable and inhalable wood dust (geometric mean: cr = 0.058 mg/m3; cinh = 0.882 mg/m3) and a 12.76% share of respirable dust in the inhalable concentration cr / cinh, had a significant influence on the efficiency of the photometric method. The mass concentration obtained by IOM and OF samplers did not significantly differ (p = 0.36).
Tweeting television between innovation and normalization: How Lebanese television and audiences are making use of Twitter in political talk shows
Authors: Zebib Chirinne
Published: April 2023

Traditional media have progressively integrated newer media practices, with the constant emergence of new digital technologies, without abandoning their former ones. The adoption of Twitter by TV channels and by other social actors during political talk shows is a case in point. This article aims to assess whether the hybridization of TV talk shows and Twitter has innovated or normalized existing patterns of communication. In the former case, by enabling more interaction between different actors and space for audience deliberation, or in the latter case, by reproducing a traditional one-way communication and a centralized network of information that remains controlled and oriented by the elite (journalists and politicians). The incorporation of older and emergent media logic has an impact on the construction and distribution of political information as well as on the power relationships between journalists, politicians, and TV audiences. Besides allowing political talk shows to expand their flow of information, and to promote their news online, hybridized practices have not only altered the way citizens consume and engage with political information but also how they counter-frame traditional political media content by producing new ones. The research methodology consists of descriptive, content, and network analyses of tweets collected from three Lebanese local TV political talk show “Sarelwa2et” (MTV), “Btefro’ aa Watan” (Al Jadeed), and “Vision 2030” (LBCI) between February and March 2022. Results revealed that TV talk shows are making use of Twitter as a top-down transmitter of information and resorting poorly to its interactive potential. Some newer media practices of Twitter, such as @mention and replies are being applied but only to interact with politicians and journalists, failing to engage with a larger array of voices and thus, leading to an elite-centric discourse within the network. Also, tweets are mostly used to inform audiences and promote TV programs. In addition, network analyses of talk shows via hashtags demonstrated the central and not monopolized role of politicians and journalists as influencers, bridges, and quick spreaders of information. Finally, content analysis of dual screeners’ tweets (n=6000) indicated very little space in a Habermasian public sphere. The total of subjective opinions, irony, and attack/insult tweets are still higher than the total of the introduction of new issues and counter-frames tweets.
Digital Transformation of Media Companies in Lebanon from Traditional to Multiplatform Production: An Assessment of Lebanese Journalists’ Adaptation to the New Digital Era
Authors: El Takach Ali , Nassour Farah , Hejase Hussin Jose
Published: April 2023

This research aims to assess Lebanese media organizations’ and journalists’ readiness and adaptation to the new digital era requirements. Journalism has always been affected by technology. Adopting new information and communications technology has obliged changes in journalistic practices and led to new business models and journalistic practices. For example, implementing Newsroom Computer Systems (NRCs) in media companies has led to radical changes in the departments of these organizations, and in particular in the newsrooms. The journalists in newsrooms are the human factor that is considered an essential element in this change. It touched on the depths of productivity and the mode of journalistic work. In the new era of media convergence, journalists are called upon to follow this trend (modern journalism) and become more versatile, where their work becomes streamlined and redesigned. The new and more flexible journalistic practices emerging in newspaper and television production, in combination with online journalism, have a profound effect on the role of journalists and their competencies requirements. Having multi competencies is explained by mastering the basic rules (writing, etc.) in the journalism profession and digital knowledge related to this profession (visualizing data, using the digital tools necessary for work, etc.).
This study uses quantitative, descriptive, and deductive approaches supported by a structured survey questionnaire. The sample in this research constituted 96 respondent journalists selected conveniently. Data were analyzed descriptively and reported in charts for clarity. Results show that from an overall analysis, Lebanese media organizations and journalists are moderately prepared to deal with the digital era requirements. Most of the research variables scored between 40 to 50% in terms of preparedness and functionality during the digital transformation era. The research implications show that in Lebanon, as elsewhere in the media industry, the human factor’s digital culture plays an essential role in the advancement of the companies towards the digital environment. In the Lebanese organizations’ case, the economic and monetary crisis factors besides the human factor, have affected the technical implementation and the digital transformation of the media outlets. In this media landscape, the role of academic institutions (i.e., universities and research centers) must be proactive to define the new set of digital and journalistic skills required and needed to enhance the transformation towards the digital multitasking and cross-platform profiles needed to adopt the digital mindset effectively and efficiently.
A CAPACITIVE SENSOR WITH PARALLEL COMPLANARE ELECTRODES SYSTEM FOR MEASUREMENT OF AIR GAP IN HYDROGENERATORS
Authors:   Institute of Electrodynamics National Academy of Sciences of Ukraine, Peremohy Ave., 56, Kyiv, 03057, Ukraine, Levitskyi А.S. , Rassovskyi V.L. ,   PJSC "Ukrhydroenergo",  Kyiv region, Vyshgorod, 07300, Ukraine, Zaitsev Ie.O. ,   Institute of Electrodynamics National Academy of Sciences of Ukraine, Peremohy Ave., 56, Kyiv, 03057, Ukraine
Published: April 2023

A capacitive sensor for measuring the air gap between the boring of the stator core and the poles of the rotor in a powerful hydrogenerator is proposed and investigated. The sensor consists of a system of equal in width tape parallel coplanar high-potential and low-potential electrodes, between which grounded electrodes are placed. The ratios between the width of the high-potential, low-potential and grounded electrodes are selected depending on the size of the nominal gap. The electrodes are formed on a dielectric substrate mounted on the boring of the stator core. To reduce the effect of edge effects on the short sides of high-potential electrodes, the length of the low-potential electrodes is chosen to be smaller than the length of the high-potential electrodes by a value determined by the nominal gap. It is proposed to place all electrodes along the length perpendicular to the boring core generatrix to reduce the measurement error due to the influence of the rotor pole curvature. The electrical capacitance between the system of high-potential electrodes connected in parallel and the system of low-potential electrodes connected in parallel, which functionally depends on the size of the air gap, is measured. Analytical and graphical dependences for the sensor conversion function intended for use on a SGK538 / 160-70M bulb hydrogenerator have been determined. The value of the error caused by the curvature of the rotor poles in this hydrogen generator was calculated. The sensor in comparison with analogs has higher accuracy of measurement. The sensor or sensor system can be used as a stand-alone device or as part of monitoring and diagnostic systems. References 19, figures 6.
Experiência de extensão universitária em Serviço Social na Amazônia
Authors: Do Perpétuo Socorro Rodrigues Chaves Maria
Published: April 2023

Este artigo relata a experiência de extensão universitária do Grupo Interdisciplinar de Estudos Socioambientais e de Desenvolvimento de Tecnologias Sociais, da Universidade Federal do Amazonas (UFAM), no “Programa Inter-Ação: práticas de sustentabilidade visando o desenvolvimento regional”, no meio urbano e junto a povos e comunidades tradicionais da Amazônia. Os procedimentos metodológicos, baseados no Método Interação (modalidade de pesquisa-ação), abrangem um conjunto de técnicas e instrumentais de coleta de dados: observação participante, grupo focal, dinâmicas de abordagem grupal e outras. O resultado das ações de extensão permitiu: formar competências dinâmicas compromissadas em atuar pelo protagonismo social dos povos amazônidas; fortalecer as organizações dos grupos sociais; disponibilizar subsídios para instituições de políticas públicas com proposições coerentes com os interesses e necessidades dos grupos sociais da região.
Wireless Substitution: Early Release of Estimates From the National Health Interview Survey, July-December 2022
Authors: Blumberg Stephen , Luke Julian
Published: April 2023

Using National Health Interview Survey data from the second six months of 2022, this Early Release report provides preliminary estimates of the percentages of adults and children living in homes with only wireless telephones.
Investigate the potential of using reactor anti-neutrinos for nuclear safeguards in Vietnam
Authors: Cao Son , Tran Ngoc , Nguyen Van , Phan Quyen
Published: April 2023

One of the most abundant man-made sources of low energy (few~MeVs) neutrinos, reactor neutrino, is not only useful for studying neutrino properties, but it is also used in practical applications. In this study, we investigate the potential of using reactor neutrino detectors for nuclear safeguards in Vietnam, specifically at the Dalat Nuclear Reactor, a future research facility, and presumably commercial reactors with 500~kW, 10~MW, and 1000~MW thermal powers, respectively. We compute the rate of observed inverted beta decay events, as well as the statistical significance of extracting isotope composition under the practical assumptions of detector mass, detection efficiency, and background level. We find that a 1-ton detector mass can allow us to detect the reactor's on-off transition state from a few hours to a few days, depending on the standoff distance and reactor thermal power. We investigate how background and energy resolution affect the precision of the extracted weapon-usable \(^{239}\)Pu isotope. We conclude that in order to distinguish the 10% variation of the \(^{239}\)Pu in the 10~MW thermal power reactor, a 1-ton detector placed 50~m away must achieve 1% background level. Increasing the statistics by using a 10x larger detector or placing it \(\sqrt{10}\) times closer to the reactor alleviates the requirement of the background level to 10%.
INTEGRATED RADAR AND COMMUNICATION SYSTEMS FOR HIGHLY AUTOMATED VEHICLES
Authors: Biswas Pallabi , Bera Rabindranath , Shome Subhankar
Published: April 2023

The application of radar has spread to numerous civilian automotive purposes like adaptive cruise control, automotive emergency braking, blind spot detection, lane change assist, and so on. The need for ever-increasing rates in wireless communications has moved the frequency spectrum toward millimeter range, usually assigned to automotive radar. This has led to an integrated automotive radar and communication system, which results in limited electromagnetic pollution and lower cost, size, weight, and power. Improved massive multiple input, multiple output signal processing techniques are required as integration of these two systems will be based on large antenna arrays. Similar to the see-through technique of 3GPP Release 16, the authors have conducted a simulation experiment where data of multiple targets have been obtained with automotive radar and then sent to a gateway. From there, data are transmitted to a fifth-generation communication model. Final data obtained at a receiver of the communication system matches the original radar output, which proves that data have been successfully transferred from the radar system to the communication system, thus making it an integrated system. This system is very useful in the case of vehicle platooning.
Geological and geotechnical assessment of natural sands in Ilorin, Nigeria
Authors: Owoyemi Olubunmi Oluwadare , Afolagboye Lekan Olatayo
Published: April 2023

The quality of the aggregates used inplastering mortar contributes to the properties of the mortar. This study evaluated the suitability of two grades of sand – sharp sand collected along active/old river courses and plastering sand collected from borrow pits – as plastering materials. X-ray diffraction and X-ray fluorescence analysis were used to study their mineralogy and major, minor and trace element components. Grain-size distribution analysis, natural moisture content, specific gravity, Atterberg limits, matric suction and permeability tests were also carried out on the sand samples. In both sands, the silica content was more than 80%. The plastering sand had a higher natural moisture content than the sharp sand. The fineness modulus ranged from 1.31 to 1.83 and 0.53 to 1.01, respectively, for the sharp sand and the plastering sand. The permeability coefficients and matric suction of the sharp sand were larger than those of the plastering sand. This implies that sharp sand will allow easier water passage through its pore spaces, therefore tending to exist in a dryer state than plastering sand. The tested sharp sand may be suitable for plastering because the test results were within the acceptable limits for good plastering materials according to national and international standards.
Mechanical properties and electrical conductivity of Al–Y–Sс–Er cold worked alloy
Authors: Gorlov L. E. , Glavatskikh M. V. , Barkov R. Yu. , Pozdniakov A. V.
Published: April 2023

Aluminum alloys alloyed with rare earth and transition metal are promising materials for electric energy transportation due to their high properties of strength, thermal stability, and electrical conductivity. The features of strengthening, their mechanical properties and electrical conductivity of Al–0.2Y–0.2Sc–0.3Er alloy after cold rolling have been established. The alloy as a cast structure is presented by aluminum solid solution (Al) and dispersed eutectics with τ2 (Al75-76Er11-17Y7-14) phase upon complete dissolution of scandium in (Al), and a content of yttrium and erbium at the level of 0.2–0.3 % each. Cold rolling the ingot accelerates strengthening upon annealing at 270 and 300 °C, reducing the time of achieving peak hardness. The maximum strengthening due to precipitation of L12 dispersoid of Al3(Sc,Y,Er) phase with the average particle size up to 10 nm is achieved after 7 h of annealing at 300 °C after cold rolling. This shows the prevailing heterogeneous mechanism of nucleation due to defects accumulated during cold rolling which stimulates strengthening. The eutectic particles are located mainly along the boundaries, elongated in the rolling direction. Irrespective of the mode of sheet fabrication, the alloy demonstrates high thermal stability up to 400 °C. During annealing of the sheets to 450 °C, their non-recrystallized structure is retained. Ingot annealing at t = 300 °C in 7 h and cold rolling with subsequent annealing under the same conditions provide a high level of mechanical properties and electrical conductivity: σ0.2 = 194 MPa, σu = 210 MPa, δ = 12.1 % and IACS – 60,1 %. The alloy has demonstrated high yield stress up to 100 h of annealing at t = 300 °C.
Structure and mechanical properties of welded joints from alloy based on VTI-4 orthorhombic titanium aluminide produced by pulse laser welding
Authors: Naumov S. V. , Panov D. O. , Chernichenko R. S. , Sokolovsky V. S. , Volokitina E. I. , Stepanov N. D. , Zherebtsov S. V. , Alekseev Е. B. , Nochovnaya N. A. , Salishchev G. A.
Published: April 2023

Ti2AlNb-based alloys are promising materials for operation at high temperatures in aerospace industry. Meanwhile, the existing difficulties of weldability restrict opportunities of their application. This work is devoted to studies of welded joints from Ti2AlNb-based VTI-4 alloy, obtained using pulsed laser welding (PLW). The optimum PLW modes have been determined providing uniform faultless joint. The features of formation of external defects, internal pores, cracks and non-uniform penetration depth were detected depending on welding conditions. The main PLW parameters influencing on formation of welded joint are voltage and duration of laser pulse. It was demonstrated that at insufficient medium and high peak powers sawtooth seam roots and internal pores can be formed. However, at higher rates of energy input thermal hydraulic processes in welding bathe are violated, accompanied by metal splashing (spattering), heterogeneity of pulse imposition is observed. This leads to formation of cracks, higher porosity, heterogeneity of melting zone, and as a consequence, poor mechanical properties. Microstructure analysis of the welded joints obtained by means of PLW has demonstrated that the melting area is comprised of long dendritic grains of β phase, and the heat affected zone from two regions of β + α2phases and β + α2+ O phases. Herewith, the achieved joint strength equals to ~80 % of the base metal produced using the optimum PLW mode.
Выявление планировочной специфики столицы в материалах концепции перспективного развития Москвы 1986 года А. Э. Гутнова
Authors: Гостев Максимилиан
Published: April 2023

Статья посвящена особенностям планировочной структуры российской столицы, представленной в материалах Концепции перспективного развития Москвы и Московской области. Этот проект был разработан в Институте Генплана Москвы под руководством А. Э. Гутнова и предшествовал неутвержденному генплану 1989 года. Концепция оказалась забыта после перестройки, но в своем методологическом обеспечении успела осуществить принципиальный переход от «нормативного» города к «эволюционному» и фактически открыла дорогу системе градостроительного регулирования, вошедшей в состав генерального плана Москвы 1999 года. В материалах Концепции была апробирована гипотеза о том, что структурно-планировочная специфика города в наибольшей степени проявляется под действием механизмов его самоорганизации. В формализованном виде эти механизмы выражены в терминах каркасно-тканевой модели города. В статье обсуждаются методические основания выстраивания планировочной структуры города в Концепции. Они анализируются с точки зрения выявления предпосылок формирования проектных решений, которые обеспечивают эволюционный характер развития города. Также раскрывается роль моделирования градостроительных систем с использованием ЭВМ в формировании плана перспективной пространственной структуры Москвы.
Efektivitas penambahan daun katuk (Sauropus androgynus) terhadap otak-otak ikan bandeng (Chanos chanos)
Authors: Senas Petrus
Published: April 2023

Ikan bandeng merupakan salah satu komoditas hasil perikanan Indonesia yang bernilai ekonomis tinggi. Diversifikasi olahan ikan bandeng dapat diaplikasikan salah satunya dalam bentuk produk otak-otak ikan. Otak-otak ikan bandeng dapat ditingkatkan nilai gizinya melalui penambahan bahan alami kaya manfaat yaitu daun katuk. Penelitian ini bertujuan untuk menentukan efektivitas penambahan daun katuk pada otak-otak ikan bandeng melalui karakteristik kimia, tingkat kesukaan (hedonik), dan indeks efektivitas. Otak-otak ikan bandeng yang dihasilkan dibagi menjadi empat perlakuan meliputi tanpa penambahan daun katuk, penambahan daun katuk 25 g, 40 g, dan 55 g. Pengujian produk meliputi analisis proksimat, kadar vitamin C, uji hedonik, dan perhitungan nilai indeks efektivitas. Data dianalisis menggunakan Rancangan Acak Lengkap (RAL) dan uji lanjut Beda Nyata Jujur (BNJ). Hasil penelitian menunjukkan penambahan daun katuk dapat meningkatkan kadar abu, lemak, dan vitamin C produk otak-otak yang dihasilkan. Otak-otak ikan bandeng dengan penambahan daun katuk 55 g merupakan perlakuan dengan nilai indeks efektivitas tertinggi (1,05) dengan karakteristik kimia meliputi kadar air 65,45%, abu 1,28%, lemak 0,70%, protein 9,14%, karbohidrat 23,42%, dan vitamin C 27,01%. Tingkat kesukaan meliputi nilai rasa 6,00, warna 6,00, aroma 6,00, tekstur 5,33, dan overall 5,83 dari skala 7. Penambahan daun katuk pada pengolahan otak-otak ikan bandeng berpotensi dapat meningkatkan nilai gizi produk (kadar abu, lemak dan vitamin C) serta produk yang dihasilkan agak disukai panelis.
Infantile-Onset LMNA-Related Congenital Muscular Dystrophy Presenting as Torticollis: A Case Report
Authors: Kim Ji Ae , Ye Dong Hyun , Shin Hee Tae , Lee Seung Hak , Ko Eun Jae
Published: April 2023

Lamin A (LMNA)-related congenital muscular dystrophy usually presents with hypotonia and severe axial muscle weakness in early infancy. We report a patient who initially presented with torticollis but was finally diagnosed with LMNA-related congenital muscular dystrophy. A 7-month-old infant presented to the outpatient clinic with a chief complaint of torticollis. During a thorough physical examination, axial muscle weakness and gross motor delay were noted, and she was admitted to the pediatric rehabilitation department for further evaluation. The serum creatine kinase level was elevated, and electromyography demonstrated the possibility of hereditary myopathy or a motor neuron disorder. A gene study was conducted, and it showed a c.745C>T (p.Arg249Trp) mutation in the LMNA gene, which is known to cause congenital muscular dystrophy in rare cases. Since there are few reports describing nerve conduction and electromyography studies in patients with LMNA-related congenital muscular dystrophy, this case is meaningful.
Banks’ Physical Footprint and Financial Technology Adoption
Authors: Mariani Lucas A. , Haas Ornelas José Renato , Ricca Bernardo
Published: April 2023

We investigate how the presence of physical bank branches moderates financial technology diffusion. Our identification strategy uses services suspensions caused by criminal groups that perform hit-and-run raids exploding branch facilities and rendering them inoperable for months. We show that the shock depletes the cash inventory of branches, but the stock of credit and deposits remain unaffected. We then document that customers increase their usage of noncash payments after the events. We investigate a new instant payment technology called Pix that was a remarkable success in terms of adoption. After robbery events, the number and value of Pix intra-municipality transactions increase, as well as the number of users. We also find Pix usage spillover effects that go beyond cash substitution. First, the number of Pix transactions and users also increases when either the payer or the payee is in an unaffected municipality. Second, we show that there are local spillovers to digital institutions, indicating that cash dependence can be an impediment to their expansion. Our results shed light on the determinants of technology adoption and the consequences of the recent transition in the banking industry from a physical branch-based model to an increasing reliance on digital services.
Trajetórias do olhar: imagens e história na arte Naϊf paraibana
Authors: Costa Robson Xavier da
Published: April 2023

Este trabalho tem como temática o estudo das relações entre a história e a arte naїf paraibana, com um recorte temporal que compreende a segunda metade do século XX. Partimos da análise da obra de dois artistas paraibanos vivos: Alexandre Filho e Tadeu Lira. O objetivo geral deste trabalho é compreender as principais características que constituem esse tipo de manifestação artística, considerando sua sintaxe, morfologia e aspectos antropológicos, artísticos e históricos envolvidos na relação entre a história de vida dos artistas e a construção de sua obra. Esta pesquisa está fundamentada no amplo contexto da história cultural, dialogando com a história oral, a história visual e a história do cotidiano, considerando as relações possíveis entre os estudos da antropologia da imagem e da ciência do imaginário.
Reforma da educação profissional do governo FHC no CEFET-PB: a representação social como mediação
Authors: Souza Evaldo Roberto de
Published: April 2023

Este trabalho apresenta os resultados de pesquisa desenvolvida para o Mestrado em Educação do Programa de Pós-Graduação em Educação da Universidade Federal da Paraíba, tendo como objeto de estudo a reforma da educação profissional implantada pelo governo de Fernando Henrique Cardoso no Centro Federal de Educação Tecnológica da Paraíba. Buscamos entender como foi possível a implantação da reforma na instituição apesar da forte resistência política e pedagógica existente. Trabalhamos com a hipótese de que houve, no âmbito institucional, um processo de mediação psicossocial e política, que facilitou a aceitação da reforma. Utilizamos a Teoria das Representações Sociais de Serge Moscovici que, como referencial teórico e metodológico, permitiu demonstrar que os gestores do Centro Federal de Educação Tecnológica da Paraíba elaboraram uma Representação Social da reforma que, ao se tornar funcional, colaborou de forma decisiva no processo de mediação para que a implantação da reforma se tornasse possível. Utilizamos a abordagem processual da Teoria das Representações Sociais que, através da análise e interpretação das entrevistas realizadas, possibilitou a compreensão dos mecanismos de elaboração da representação social pelos gestores, como também permitiu demonstrar a funcionalidade de tal representação para o processo de implantação da reforma.
Produção de barras magnéticas em tubos de vidro
Authors: Oliveira Carlos Alberto Fernandes de , Silva Evandro Ferreira da , Resende Filho João Batista Moura de , Souza João Jarllys Nóbrega de , Limeira Kyara Andressa Cavalcanti , Andrade Liliane Rodrigues de , Silva Júnior Umberto Gomes da
Published: April 2023

Considerando a carência de laboratórios convencionais de ciências (Física, Química, Biologia, etc.) na Rede Pública de Ensino, o presente projeto visa à fomentação de barras magnéticas alternativas a fim de auxiliar a execução de experimentos que necessitem de tal equipamento. O desenvolvimento experimental consiste em reutilizar materiais considerados sucatas na maioria dos experimentos. As barras magnéticas são produzidas a partir de hastes metálicas (pregos, pinos, entre outros) ou outros materiais com propriedades paramagnéticas e vidrarias quebradas (pipetas, tubos de ensaios, capilares, etc), comuns nos laboratórios de química. Os testes realizados confirmaram que tais barras magnéticas podem ser amplamente utilizadas na agitação de soluções e misturas sem inconvenientes. Atualmente as barras magnéticas produzidas são utilizadas nas aulas experimentais do curso de Licenciatura em Química do CEFET-PB e nas demais atividades desenvolvidas nos laboratórios.
Características de pacientes con exacerbación aguda grave de enfermedad pulmonar obstructiva crónica que requirieron ventilación mecánica invasiva en un hospital de Santander durante 2014-2020
Authors: Centeno Hurtado Katherine Tatiana , García Bohórquez Diego Fernando , Masías León Yuderleys , Ruiz González Carlos Eduardo , Criado Villamizar Juan Daniel , Hernández Martínez Alejandra , Mendoza Herrera Tania , Fajardo Rivero Javier Enrique
Published: April 2023

Introducción: la enfermedad pulmonar obstructiva crónica es una limitación del flujo de aire por anomalías alveolares. En una exacerbación aguda, la ventilación mecánica no invasiva es la primera línea en el manejo, sin embargo, existen ciertos factores de riesgo que hacen más probable el uso de ventilación mecánica invasiva en estos pacientes, que no están apropiadamente descritos en la literatura científica y que pueden guiar hacia una elección de soporte ventilatorio apropiado. Objetivo: describir los factores que se asociaron con mayor necesidad de ventilación mecánica no invasiva en una cohorte de pacientes hospitalizados con exacerbación aguda de la enfermedad pulmonar obstructiva crónica. Métodos: estudio observacional analítico de corte transversal, con muestreo no probabilístico que incluye todos los pacientes que consultaron a urgencias y fueron hospitalizados por exacerbación aguda de la enfermedad pulmonar obstructiva crónica en un hospital de tercer nivel de Santander, Colombia, durante el período 2014-2020. Resultados: fueron incluidos 81 pacientes, 36 requirieron ventilación mecánica no invasiva y 12 ventilación mecánica invasiva; 25 % de los pacientes con ventilación mecánica no invasiva fallaron a la terapia inicial y demandaron el uso de ventilación mecánica invasiva. Las comorbilidades más frecuentes fueron hipertensión arterial (70,3 %) y cardiopatía (49,38 %); 70 % había tenido exposición al tabaquismo como fumador directo. Conclusiones: el uso de ventilación mecánica invasiva estuvo relacionado de forma estadísticamente significativa en pacientes con perfil de disnea severa, acidosis por parámetros gasométricos, escalamiento antibiótico, uso de corticoides intravenosos, requerimiento de unidad de cuidado intensivo, infecciones asociadas al cuidado de la salud y estancia hospitalaria prolongada.
Problematyka obrony obligatoryjnej w postępowaniu karnym – rozważania dogmatyczno-prawne
Authors: Rydz-Sybilak Katarzyna
Published: April 2023

Głównym celem pracy jest przedstawienie i ocena instytucji obrony obowiązkowej, przewidzianej dla oskarżonego w polskim Kodeksie postępowania karnego. W artykule przedstawiono argumenty przemawiające za twierdzeniami, że instytucja ta jest niezbędna dla strony w tym celu, aby przeprowadzenie rozprawy nastąpiło w sposób rzetelny i zgodny z prawem. Celem niniejszych rozważań jest prezentacja orzecznictwa Sądu Najwyższego w zakresie istnienia podstaw do zaistnienia warunków obrony obligatoryjnej w procesie karnym.
Problematyka niezdolności konsensualnej do zwarcia małżeństwa w pracach Papieskiej Komisji do Rewizji KPK w fazie konsultacji (1975-1978) oraz ponownego rozpatrzenia projektu nowych kanonów (1978-1980)
Authors: Góralski Wojciech
Published: April 2023

Rozpoczęta po zakończeniu Soboru Watykańskiego II reforma prawa kanonicznego objęła m.in. prawo małżeńskie. Najistotniejszym obszarem kodyfikacji w tym zakresie była zgoda małżeńska, która jest przyczyną małżeństwa. W szczególności chodziło o skodyfikowanie normy o niezdolności konsensualnej wywodzącej się z prawa naturalnego. Po pierwszym etapie prac kodyfikacyjnych prowadzonych przez Papieską Komisję ds. Rewizji KPK (przy pomocy Zespołu konsultorów De matrimonio) kontynuowano prace kodyfikacyjne w kolejnych etapach: konsultacje opracowanych projektów z konsultantami (1975-1978), a następnie ponowne rozpatrzenie tych projektów przez Komisję Papieską i jej konsultorów (1980-1981). W wyniku tych prac kan. 1095, nn. 1-3, został zatwierdzony w 1983 r. przez Jana Pawła II.
Uncertainty in hydrological modelling: A review
Authors: Farzana Syeda Zehan
Published: April 2023

Availability of hydrological data and various soft wares for developing models make easy way to answer frequently asked questions to hydrologists. A great deal of concentration has given to the development of models in the last decades. But the thorough study regarding uncertainty of simulations has not carried out in comparison with the development of models. Uncertainty in models emanates from input data, calibrated data, parameters and from the structure of models. The sources of uncertainty, cause of generation and how these can be dealt with are reviewed here. This also comprises a review about five different methods viz. Monte Carlo sampling, Bayesian approach, Generalized Likelihood Uncertainty Estimation, Bootstrap Approach and Machine learning methods which were applied in the estimation of the model and parameter uncertainty. This will indicate the comparison between the methods which were applied to measure the uncertainty of hydrological models and highlight the strengths and weaknesses of the methods in identifying the usefulness of the models. By the comparison of the methods the improvement of the model reliability, slackening of the prediction error of the hydrological models can be suggested. By a proper quantification of uncertainty of data applied for the building up and evaluation of models, model performance can be improved, cost can be reduced and unambiguous results can lead the proper water resources management.
Estimation of Ground Water Recharge for Irrigation Water Budget Planning in Kanzenze Swamp
Authors: Nepo Nsengiyumva Jean , Muthiah Sankaranarayanan , Eric Ruzigamanzi , Alphonsine Mutako Vedasto , Elias Nyandwi , Hamoud Rukangantambara
Published: April 2023

Groundwater is the dynamic local water source for agriculture, industry, wildlife and human development activity. Hence, in order to sustain long-term groundwater use, make intelligent groundwater allocation decisions and water budget planning, develop on-farm water management strategies, the estimation of the net groundwater recharge from agricultural areas like Kanzenze swamp is paramount important. The study findings therefore showed that Ground Water Recharge estimation for the study area ranges from 33.85mm to 52.96mm while the average mean of ground water recharge is about 45.06mm per year. The coefficient of ground water recharge is ranging from 3.41% to 5.27% while average mean recharge coefficient is 4.06% recharged to ground water level yearly. However, monthly basis planning have advantages for farmers’ water budgeting. It revealed that highest recharge coefficient is recorded in months of March, April and November representing 17.22% and 17% of the mean monthly rainfall while the lowest recharge coefficient is recorded during the period of June, July and February representing 16.17%, 15.73% and 16.71% of the average monthly rainfall. Thus, it is recommended that utmost farmers around the Kanzenze swamp should plan the irrigation activities and minimizes unnecessary water use consumption in such way that in June and July there is water enough water even taught there is shortage of rainfall. It meant that priori irrigation systems should be applied to obtain optimum moisture content and water table levels for effective crop production mainly horticultural crops in season C rather than season A and season B of cultivation in Rwanda.
Tariffs and welfare: A common, invalid anti-tariff argument
Authors: Sweeney Richard J.
Published: April 2023

President Trump imposed tariffs in 2017 on several of China’s exports, notably steel. Many papers opposed these tariffs by using a common, invalid argument: rather than arguing these tariffs reduced U.S. welfare, they argue U.S. consumers and businesses pay the tariffs, a different, rhetorical issue. Their main evidence of harm is increases in imported goods’ after-tariff U.S. prices, especially relative to other goods’ U.S. prices. In a standard, small general equilibrium model (two countries, two goods, two factors), this price evidence is wholly ambiguous—it is even consistent with the view that Trump’s tariff was optimal, increasing U.S. welfare. Even sophisticated papers are similarly ambiguous. All fail because they neglect how government uses tariff revenue. Relying on fallacious arguments makes the free-trade position look weak and encourages protectionism.
On the stability of a certain Keynes-Metzler‑Goodwin monetary growth model
Authors: Sołtysiak Damian
Published: April 2023

The article has three aims. The first aim is to develop an improved version of the Keynes-Metzler-Goodwin (the KMG) monetary growth model originally presented and analysed in a series of publications by Carl Chiarella, Peter Flaschel and Willi Semler. The improvement of the model is obtained by modifying some of its equations in a way which ensures that they reflect real macroeconomic dependencies more properly. The equations that have been modified describe final demand expectations, determinants of production decisions, fixed capital accumulation, tax revenues, government budget deficit and money demand. The second aim is to transform the model into an intensive form described by seven non-linear differential equations and determine its unique steady state which shows proportions between variables on the balanced growth path. The third ultimate aim is to present a mathematical proof that the new improved version of the KMG model is locally asymptotically stable.
Bionics in the Development of Agricultural Machines Taking into Account the Processed Material and the Created Devices Properties in Determining Characteristics
Authors: Babitsky L.F. , Moskalevich V.Yu.
Published: April 2023

The paper considers development of the new area in agricultural engineering, i.e., bionics. The purpose of the work is to elaborate methodology and technical means for determining the soil deformation index as a new characteristic of its physical and mechanical properties, which makes it possible to pass directly from the processed materials deformation properties to the shape of the working surfaces of machines created in similarity to the living dorbeetle organisms. The soil deformation index is the deformer area per unit of critical pressure on the soil. When describing the soil behavior in the deformation process, the paper proposes to use this indicator in the rheological models. The method for determining the soil deformation index provides for a smooth indentation of a hemispherical tip into the soil or earth with simultaneous fixation of its immersion depth into the soil and of the force required in penetrating to this depth. Registration of these parameters is possible both on paper in the form of a diagram and electronically in the digital form. A device for the soil deformation index determination is considered, it includes a laboratory unit with the hydraulic drive, a microscope-based unit for bionic research and a device for working in the field
Aspectos Jurídico-Económicos de las Inversiones Extranjeras
Authors: Sierralta Ríos Aníbal
Published: April 2023

Las corrientes de inversión, cuanto el comercio internacional, se han desarrollado dentro de figuras contractuales y convenios típicos del sistema jurídico del "common law", muchos de los cuales son desconocidos para los países de América Latina.
El Grupo Andino en el Actual Contexto Regional
Authors: Canale Novella Lilliana María
Published: April 2023

Creo que el tema que me toca tratar es particularmente interesante. Indudablemente, el análisis que realizaré del mismo tiene un cierto sesgo hacia la visión que nosotros, como Perú, tenemos de este proceso, el mismo que ha resultado de la evaluación de cost<:>-beneficio realizada, que nos ha llevado a una situación sui generis dentro del proceso de integración; ésto es importante para poder entender cómo llegamos a la publicitada suspensión temporal de algunos aspectos vitales dentro del Grupo Andino. Creo que es importante reseñar cómo se inicia el proceso, dentro de qué contexto macro-económico se desarrollan los primeros años y cuál es el devenir histórico que va ejerciendo cada vez una mayor necesidad de cambios cualitativos en la propia estructura normativa del Grupo Andino.
La Cumbre de la Tierra 1992 : ¿lmplicancias para el Derecho Internacional Económico?
Authors: Soroos Marvin S.
Published: April 2023

Este es mi segundo viaje al Perú. Hace tres años pasé seis semanas fascinantes en el Perú como parte de un grupo académico organizado por la Fulbright, durante las cuales visité diferentes partes del país, inclusive algunas no muy frecuentadas por turistas extranjeros. Regresé con maravillosos recuerdos de la grandeza del paisaje andino, de los logros de las civilizaciones precolombinas, las hermosas y encantadoras melodías folklóricas tocadas con instrumentos tradicionales por músicos vestidos con sus atuendos típicos, así como el calor y la amistad de la gente peruana, a pesar de estar enfrentando serias dificultades económicas y políticas.