bluuebunny/crossref_metadata_2025 huggingface dataset:
Peras con manzanas: comparación entre los objetivos constitucionales del acceso a la propiedad rural y la implementación de programas de formalización
Authors: Triana Ancinez Bryan , Valencia Herrera Milton Alberto , Lozano Valcárcel Alfonso Javier , Acosta Aguilar Nusmen Alfredo
Published: February 2021

El presente artículo tiene por objeto mostrar los alcances y limitaciones de los programas de formalización como políticas para cumplir los objetivos sobre acceso a tierras que fueron debatidos y aprobados en la Asamblea Nacional Constituyente -ANC-. Para ello, se describen los debates que se realizaron en la ANC y se enuncian los fines que se aspiraban cumplir al establecer el deber del Estado de promover el acceso a la propiedad rural. Luego, se comparan estos objetivos con los diseños y resultados de programas de formalización en Colombia. Esta comparación se hace a partir de un análisis jurídico de la forma en que operan estas políticas y de los resultados de un sondeo realizado en zonas donde se implementaron estas políticas. Como conclusión, encontramos que los programas de formalización no son necesarios ni suficientes para desarrollar las aspiraciones constitucionales relativas al acceso a la propiedad rural.
The effect of Brexit on, and changes in, the European Union medical device regulations
Authors: Pogose Mike , Badwal Karandeep , Liu Xiao , Harvey Hugh
Published: February 2021

With the exit of the UK from the European Union and the European Union Regulation 201/745 coming into effect on 26 May 2021, the regulatory landscape for medical devices is undergoing a substantial change, the implications of which will be felt by those procuring and using medical devices in clinical settings. This article outlines the changes that clinicians, as users of medical devices, should be aware of in the immediate future.
Reproducibility and reliability analysis of the Luk Distal Radius and Ulna Classification for European patients with adolescent idiopathic scoliosis
Authors: Houston James , Chiang Amy , Haleem Shahnawaz , Bernard Jason , Bishop Timothy , Lui Darren F.
Published: February 2021

Purpose

Current clinical and radiological methods of predicting a patient's growth potential are limited in terms of practicality, accuracy and known to differ in different races. This information influences optimal timing of bracing and surgical intervention in adolescent idiopathic scoliosis (AIS). The Luk classification was developed to mitigate limitations of existing tools. Few reliability studies are available and are limited to certain geographical regions with varying results. This study was performed to analyze reproducibility and reliability of the Luk Distal Radius and Ulna Classification in European patients.

Methods

This is a radiological study of 50 randomly selected left hand and wrist radiographs of patients with AIS referred to a tertiary referral centre. They were assessed for bone maturity using the Luk Distal Radius and Ulna Classification. Assessment was performed twice by four examiners at an interval of one month. Statistical analysis was performed using the intraclass correlation (ICC) method to determine the reliabilities within and between the examiners.

Results

In total, 50 radiographs (M:F = 13:37) with a mean age of 13.7 years (10 to 18) were assessed for reliability. The inter-rater ICC value was 0.918 for radius assessment and 0.939 for ulna assessment. The intra-rater ICC values for radius assessment ranged between 0.897 and 0.769 and between 0.948 and 0.786 for ulna assessment. There was near perfect correlation for both assessments.

Conclusion

This study provides independent evidence that the Luk Distal Radius and Ulna Classification is a reliable tool for assessment of skeletal maturity for European patients. Minimal clinical experience is required to reliably utilize it.

Level of evidence

IV
An Integrated Navigation Method Based on an Adaptive Federal Kalman Filter for a Rice Transplanter
Authors: Liao Juan , Wang Yao , Yin Junnan , Bi Lingling , Zhang Shun , Zhou Huiyu , Zhu Dequan
Published: February 2021

Highlights

An integrated GPS/INS/VNS navigation system was developed to improve navigation accuracy.

An adaptive federal Kalman filter with information distribution factors was used to fuse navigation information.

Detection of seedling row lines was achieved based on subregional feature points clustering.

A modified rice transplanter was developed as an experimental platform for automatic navigation.

Abstract. In this article, an integrated global positioning system (GPS), inertial navigation system (INS), and visual navigation system (VNS) navigation method based on an adaptive federal Kalman filter (KF) is presented to improve positioning accuracy for a rice transplanter operating in a paddy field. The proposed method used GPS/VNS to aid the INS and reduce the influence of the accumulated error of the INS on navigation accuracy. An adaptive federal KF algorithm was designed to fuse navigation information from different sensors. The information distribution factor of each local filter was obtained adaptively on the basis of its own error covariance matrix. Computer simulation and transplanter tests were conducted to verify the proposed method. Results showed that the proposed method provided accurate and reliable navigation information outputs and achieved better navigation performance compared with single GPS navigation and an integrated method based on a conventional federal KF. Keywords: Federal Kalman filter, GPS/INS/VNS, Information distribution factor, Information fusion, Integrated navigation.
Compact green Ti:sapphire astro-comb with a 43  GHz repetition frequency
Authors: Chae Eunmi , Kambe Eiji , Motohara Kentaro , Izumiura Hideyuki , Doi Mamoru , Yoshioka Kosuke
Published: February 2021

A compact green astro-comb with a 43 GHz repetition rate is developed based on a Ti:sapphire optical frequency comb (OFC) and a mode-selecting cavity. The OFC’s large repetition rate of 1.6 GHz eases the requirements for the mode-selecting cavity. Unnecessary frequency modes of the OFC are suppressed down to

5
×

10

−
4

at 535–550 nm using a single mode-selecting cavity with 70 MHz linewidth. The radial velocity precision

σ
∼
1.4

m

/

s

is achieved at the high dispersion echelle spectrograph for the Okayama 188 cm telescope of the National Astronomical Observatory of Japan using our astro-comb. With further improvements of the mode-selecting cavity and removal of fiber modal noises, our system will provide a simple, compact, and precise astro-comb setup in the visible wavelength region.
Hyperbolic phonon polariton resonances in calcite nanopillars
Authors: Breslin Vanessa M. , Ratchford Daniel C. , Giles Alexander J. , Dunkelberger Adam D. , Owrutsky Jeffrey C.
Published: February 2021

We report the first experimental observation of hyperbolic phonon polariton (HP) resonances in calcite nanopillars, demonstrate that the HP modes redshift with increasing aspect ratio (AR = 0.5 to 1.1), observe a new, possibly higher order mode as the pitch is reduced, and compare the results to both numerical simulations and an analytical model. This work shows that a wide variety of polar dielectric materials can support phonon polaritons by demonstrating HPs in a new material, which is an important first step towards creating a library of materials with the appropriate phonon properties to extend phonon polariton applications throughout the infrared.
Spectral filtering in single-mode fibers using resonant coupling with absorbing rods
Authors: Aleshkina Svetlana , Kashaykina Tatiana , Yashkov Mikhail , Salganskii Mikhail , Velmiskin Vladimir , Bubnov Mikhail , Likhachev Mikhail
Published: February 2021

We investigate (both theoretically and experimentally) a method for fundamental mode spectral filtering in single-mode optical fibers using the resonant mode coupling effect. We demonstrate the possibility of controlling the spectral bandwidth of the fundamental mode suppression band through appropriate choice of fiber parameters and fiber bending. The developed technique can be very useful for the design of fiber-based spectral filters (i.e., active fibers with suppression of laser emission at undesirable wavelengths, suppression of stimulated Raman scattering).
A knowledge, attitudes, and practices study on ticks and tick-borne diseases in cattle among farmers in a selected area of eastern Bhutan
Authors: Namgyal Jamyang , Tenzin Tenzin , Checkley Sylvia , Lysyk Tim J. , Rinchen Sangay , Gurung Ratna B. , Dorjee Sithar , Couloigner Isabelle , Cork Susan C.
Published: February 2021

Livestock farming plays an important role in supporting the livelihood of resource-poor subsistence farmers in Bhutan. However, ticks and tick-borne diseases (TBDs) are one of the major constraints to livestock farming due to their negative effect on health and production. To date, no study has been conducted in Bhutan to assess farmers’ knowledge, attitude, and practices (KAP) about ticks and TBDs in cattle, although such information is essential in ensuring the development and adoption of effective prevention and control measures. Therefore, a KAP survey was conducted among 246 cattle owners in the Samkhar sub-district of eastern Bhutan in June 2019, using a structured questionnaire. Based on our scoring criteria, 52% [95%CI: 45.5–58.4] had adequate knowledge about ticks as potential vectors of diseases. Logistic regression analysis showed that the individuals who practiced a stall-feeding system of cattle rearing were 2.8 times [OR = 2.8 (95%CI: 1.66–4.78)] more likely to have adequate knowledge than others. Sixty-eight percent [95%CI: 62.5–74.4] had a favorable attitude toward tick prevention and control programs. Men were 1.95 times [OR = 1.95 (95%CI: 1.09–3.55)] more likely to have a favorable attitude than women, and the individuals who practiced a stall-feeding system were 2.59 times [OR = 2.59 95%CI: 1.45–4.78)] more likely to have a favorable attitude than others, after adjusting for the effect of other variables in the model. Overall, only 38% [95%CI 32.5–45] of the respondents reported tick infestation as one of the most important animal health problems, but 100% reported using acaricides to control ticks in cattle. Despite a high level of acaricide usage, the level of knowledge was low among the farmers interviewed. Findings from this study underline the importance of considering identified knowledge gaps and initiating education efforts to improve the adoption of effective tick prevention and control measures among farmers.
Validation of the STANDARD Q COVID-19 antigen test in Vojvodina, Serbia
Authors: Ristić Mioljub , Nikolić Nataša , Čabarkapa Velibor , Turkulov Vesna , Petrović Vladimir
Published: February 2021

Background

Since COVID-19 pandemic is a global crisis, tests with high sensitivity and specificity are crucial for the identification and management of COVID-19 patients. There is an urgent need for low-cost rapid antigen COVID-19 test with a good diagnostic performance. Although various antigen rapid detection tests are widely available, strong evidence of their usefulness in clinical practice are still limited. Therefore, our aim was to evaluate clinical performance of STANDARD Q COVID-19 Ag Test (SD Biosensor, Gyeonggi-do, South Korea).

Methods

The performance of the STANDARD Q COVID-19 Ag Test for the detection of SARS-CoV-2 antigen was evaluated in comparison to RT-qPCR results in 120 symptomatic patients (median age 49, IQR 36–70) who presented to health care facility in Novi Sad, Vojvodina, Serbia.

Results

Twenty five out of 120 samples have been tested positive using STANDARD Q COVID-19 Ag Test, and all of them were also positive on RT-qPCR. Overall, the STANDARD Q COVID-19 Ag Test showed sensitivity of 58.1% (95% CI 42.1–73.0) but it was higher in the early days of disease, when the highest viral loads were detected. During the first five days after the symptom onset, the sensitivity ranged from 66.7% to 100% and the pooled accuracy and Kappa values were high (0.92 and 0.852).

Conclusions

A strong agreement between performance of STANDARD Q COVID-19 Ag Test and RT-qPCR was observed during the first five days of illness, suggesting that this rapid antigenic test can be very useful for COVID-19 diagnosis in the early phase of disease.
Long Day’s Journey into Night (2018): Reality, Memory, and Dream in the Cinema Spectacle
Authors: Hannah Poon Hiu Lam
Published: February 2021

China/France

Director BI Gan

Runtime 140 minutes
Spiders and Doppelgängers in Denis Villeneuve’s Enemy (2013)
Authors: Flaherty David
Published: February 2021

Canada

Director Denis Villeneuve

Runtime 90 minutes
High Noon (1952)
Authors: Alston John I.
Published: February 2021

USA

Director Fred Zinnemann

Runtime 85 minutes

 

DVD

USA, 2008

Distributed by Lionsgate (region 1)
In a Lonely Place (1950) in 2 Frames
Authors: Outlaw Olivia , Sprouse Miranda A.
Published: February 2021

USA

Director Nicholas Ray

Runtime 93 minutes

 

Blu-ray

USA, 2016

Distributed by The Criterion Collection (region A/1)
Camping off the grid in the grid: Between hospitable space and inhospitable land
Authors: Hailey Charlie
Published: February 2021

When the last U.S. Census canvassed Slab City, a remote, self-governed community of artists, retirees, anarchists and homeless people in southern California’s desert, most of its residents claimed ownership of the plots they occupied as “free and clear.” And yet Slab City itself occupies land that is public, as firm in this designation as the resolve of those who live there. Often called the “last free place,” this square-mile plot is one of the remaining Section 36 areas, which were originally reserved for the state’s public schools when each township was laid out by the National Ordinance’s land surveys that blanketed the American West in an invisible but all-encompassing grid. Consequently, the state of California hosts an array of one-square mile pockets of land. Among these, Slab City is a camp that bears the ongoing question of how land—environmentally inhospitable yet relatively hospitable in its public status—might host practices of self-determination, self-regulated community, and national identity. Veritable blind spots of land management, Section 36 areas contrast other more regulated, though comparable, practices on public and private lands. The Bureau of Land Management oversees Long Term Visitor Areas where campers can park trailers across vast territories for extended periods of time, and Walmart plays host to cross-country travelers who overnight in its parking lots—a permutation of recreational camping known as boondocking. But what happens in the absence of oversight? In places where the campsites become permanent? In times when those living there have arrived not only by choice but also in many cases out of necessity? Legacies of a country’s organizational matrix, Section 36’s pockets of land linger as residual pieces of frontier mythologies, as testaments of the arbitrariness of the grid and its land policies, and as fertile ground for alternative practices of adapting to inhospitable environments and making home in improvised communities. This essay seeks to understand how Section 36 land hosts contemporary intersections of public space and freedom.
Invisible Hospitalities of the Art School
Authors: Langlois Justin
Published: February 2021

Across the art school, there are explicit forms of welcoming, of hosting, and othering. From the process of admissions to the structures of critique to the hiring process of both precarious and instrumental academic labour, the art school centers values built on invisible hospitalities that actively foreclose emancipatory social and political practices and continually reasserts dominant expectations of market-based practices. This essay traces the ways in which invisible hospitalities inform curricular, infrastructural, and administrative processes, while charting a course for cultivating new forms of hospitality that can support plural, complex, and radical forms of creative self-determination and artistic practice.
Hospitality of the Anus (or When Will We Learn to Play Dirty?)
Authors: Semerene Diego
Published: February 2021

In this article I argue the potential for the anus to become a hospitable site for political resistance and symbolic reparation. In order to lay out the ways in which this hospitality can be performed, and how it can amount to an emancipatory ethics, I look to two representatives of what we could call a queer theory from the streets. That is, a queer theory that emerges from peripheral spaces, through unorthodox means, and from urgency of sexual, artistic and activist cravings. This queer theory bypasses the rules and regulations that tend to govern academic protocols and is here represented by Brazilian trans rapper Linn da Quebrada and Spanish philosopher Paco Vidarte. Both, like myself, recognize the necessity to speak in the first person if one is to stress one’s subjective position, expose the borderlessness between work and worker, and refuse to be a spokesperson for a group.
Geoffrey Pugen’s Apocalyptic Utopias
Authors: Adlington Marilyn
Published: February 2021

At the intersection of technology and the natural world, humanity becomes a ghostly presence in “Weather Room,” Geoffrey Pugen’s 2020 solo show at MKG 127. De-centring the presence of the human figure, the exhibition becomes an investigation of the “hyper-sublime,” asking the question: who does this hyper-sublime world belong to, if not humanity?
A fenntartható fejlődés elvei és azok érvényre jutása a banki gyakorlatban II. rész (The principles of sustainable development and their realization in the banking practice II. part)
Authors: Pintér Éva , Deutsch Nikolett
Published: February 2021

Az utóbbi évtizedben a környezettudatos gazdálkodás szerepének felértékelődése új tevékenységi területet nyitott meg a bankok előtt, amit nemzetközi szóhasználattal élve green banking-nek neveznek. A fenntartható fejlődést támogató projektek banki finanszírozása számos lehetőséget nyit a pénzügyi intézmények számára – hírnév, új ügyfélbázis, kockázatcsökkentés, jövedelmezőség növelése –, amennyiben a bankok a fenntarthatóság elveit megfelelően integrálják működési stratégiájukba. A cikksorozat második részében a szerzők a bankok fenntartható működését támogató külső és belső motiváló tényezőit veszik vizsgálat alá, amelyet már nemzetközi elvek és megállapodások is szabályoznak és támogatnak. Kiemelt fontosságot tulajdonítanak a környezettudatos gazdálkodás banki stratégiába történő integrálásának, melynek alapjait teremthetik meg a cikkben vizsgált nemzetközi irányelvek. ________ In the last decade, a lot of publications came to light, dealing with the social and environmental responsibility of financial institutions. Banks are expected to improve their competitive advantage by demonstrating economic development, while promoting environment care and social responsibility. This sustainable finance means to manage environmental and social risks in corporate lending and project financing. Green financial institutions have developed a wide range of innovations that can support sustainable development. This article highlights a few external and internal factor that support this aim, and which are regulated by international principles. However the authors’ survey shows that in the relevant literature there are a lot of ways to define sustainability and its achievement. They suggest that all of them can be interpreted associated with green banking operation. The goal of this paper is to identify the role of financial institutions in achieving sustainable development, and stress its strategic importance. The authors also attempt to show, why and how can this sector become the promoter of sustainability.
A multinacionális vállalatok szerepe a hazai klaszterekben (Roles of multinational enterprises in the Hungarian clusters)
Authors: Kocsis Alexandra
Published: February 2021

A cikk azt a kérdést vizsgálja, hogy milyen szerepet töltenek be a multinacionális vállalatok leányvállalatai a hazai klaszterekben, milyen a kapcsolatuk a klasztertag kis- és középvállalatokkal többek között a közös innovációban, a tudásközvetítésben, a klaszterek reputációjának növelésében. A felderítő kutatás a témát a hazai klaszterfejlesztési program, a Pólus Program által életre hívott három, úgynevezett akkreditált klaszter menedzsereivel, a klasztertag multinacionális vállalatok (MNV-k) hazai leányvállalatainak képviselőivel és a klasztertag KKV-k vezetőivel készült interjúk alapján mutatja be. A téma relevanciáját a program által potenciálisan indukált együttműködési folyamatok adják, mivel a klaszterfejlesztési pályázati konstrukciók úgy lettek kialakítva, hogy a klasztertag KKV-knak érdemes legyen nagyvállalatot is bevonniuk a közös innovációs és kutatás-fejlesztési projektekbe. A kutatási eredmények alapján az MNV leányvállalatainak leginkább a globális trendek és standardok klaszterbeli elterjesztésében van meghatározó szerepük, illetve a KKV-k és leányvállalatok közötti üzleti kapcsolatok alakításában kiemelt szerepe van a klasztermenedzsment szervezet tevékenységének. / === / The paper focuses on the topic which deals with the role of subsidiaries of multinational companies (MNC’s) in Hungarian industrial clusters in the fields of common innovation, knowledge transfer, and increasing the cluster’s reputation. The findings of the paper are based on an explorative research. Interviews were made with cluster managers, representatives of MNC’s subsidiaries, leaders of small and medium size (SME’s) enterprises operating in three accredited clusters created by the Hungarian cluster development program, the Pole Program. The relevance of the topic is given by the Program, which has induced potential cooperation between MNC’s subsidiaries and domestic SME’s in cluster environment in a way so the members of the cluster – SME’s and subsidiaries – were driven to cooperate in common innovation and R+D projects. The author’s research results suggest that MNC’s subsidiaries in Hungarian clusters seem to play a key role in the dissemination of global industrial trends and standards between the cluster members. The national cluster management organization can also play a decisive role in shaping business relationship between MNC’s and SME’s.
A vállalati informatika szerepe a versenyképesség alakításában a pénzügyi és gazdasági válság időszakában (Corporate IT in shaping the competitiveness of the Hungarian enterprises in the financial and economic crisis)
Authors: Drótos György , Móricz Péter
Published: February 2021

A cikk az informatika és a versenyképesség kapcsolatát vizsgálja. A Budapesti Corvinus Egyetem Versenyképesség Kutatási Programjának korábbi felmérései óta számos új technológia bukkant fel, illetve hazánkat is elérte a világméretű pénzügyi és gazdasági válság hatása. E kihívások tükrében érdemesnek tűnt újra megvizsgálni az információtechnológia (IT) szerepét a versenyképesség alakításában. / === / In this paper the relationship between information technology (IT) and competitiveness is tackled. Since the authors’ previous surveys within their Competitiveness Research Program several new technologies have emerged, and the influence of the word wide financial and economic crisis has reached Hungary as well. In the face of these challenges it is worth reexamining the role of IT in shaping the competitive position of companies. The structure of the paper is as follows. A brief theoretical introduction is provided before their research questionsare presented. After that, the paper contains an analysis on selected fields of the corporate IT function, namely IT infrastructure, IT applications, IT management and IT strategy. Based on this, conclusions are made both at the end of the main parts, and in the final section of the paper. As far as the final conclusions are concerned, the majority of respondents do not regard IT today as a source of sustainable or contestable competitive advantage, though the dominant opinion underlines that IT is a strategic necessity. Besides this, their research results suggest a kind of association between corporate performance and the maturity level of the IT function. However, even the best performing companies are not prepared yet to effectively respond to their own prediction that forecasts the strengthening role of IT as a competitive factor.
The Mande Creation Myth,by Germaine Dieterlen, as a Historical Source for the Mali Empire
Authors: Jansen Jan , Fairhead James R.
Published: February 2021

This article proposes a new reading for Germaine Dieterlen’s classic text “The Mande Creation Myth,” and presents it as evidence for Kangaba’s prominent military role as ruler of the Niger and defender of the gold mines that for centuries provided the wealth of the Mali Empire. It is demonstrated that, although Dieterlen was in search of a unified cosmology, her informants in Kangaba provided answers that voiced Kangaba’s military concerns and claims as political heir of the medieval Mali Empire and ruler of the River Niger. The starting point of the analysis are new insights on how creation is envisioned in the West African savannah, with an emphasis on termite mounds, earth, and blacksmiths. These insights are compared to the fieldwork data that Dieterlen collected in 1953-55, which she used in 1955 for a publication on the Kamabolon ceremony in Kangaba and, under strikingly different personal circumstances, in 1957 in the article “The Mande Creation Myth.” The article explains why Dieterlen herself nor other researchers have never been able to reproduce neither her 1953-55 findings nor her 1957 findings by pointing to Kangaba’s raised prestige as a major historical site for a new Republic of Mali, which had acquired independence in 1960. Kangaba’s new position replaced the earlier focus on military rule on the Niger and defense of gold mines (in what had become the Republic of Guinée in 1958). This argument is substantiated by a recently discovered contemporary report of the 1961 Kamabolon ceremony, written by a leading contemporary intellectual, Mambi Sidibé.
Modelagem de Regressão Espacial para Estimava de Valores em Massa a partir de Cartografia Cadastral
Authors: Pimenta Felipe de Souza , Ribeiro Frederico Vasconcelos , Cruz Júnior Dionísio Costa
Published: February 2021

Esta pesquisa propôs a construção e avaliação do desempenho de modelos de regressão linear múltipla (convencional e espacial) para a cidade de Itororó (BA) e assim possibilitar elaboração de uma Planta de Valores Genéricos (PVG) e estimativa do Imposto sobre a Propriedade Predial Urbana (IPTU). Para tanto, o processo de elaboração desses modelos compreendeu mapeamento aerofotogramétrico e cadastro imobiliário, análises espaciais, de multicolinearidade, normalidade e homocedasticidade dos resíduos, além de testes dependência espacial de acordo com a NBR 14.653-2/2011. Os resultados indicaram que a incorporação dos efeitos da autocorrelação espacial através do modelo de defasagem espacial reduzido proporcionou melhor desempenho em relação ao convencional. No entanto a construção do modelo de regressão geograficamente ponderada também reduzido, capaz de modelar a heterogeneidade espacial, mostrou-se ainda mais adequado, propiciando a quase totalidade da explicação da variação dos valores preditos, além de redução brusca dos erros de predição e do coeficiente de dispersão. A extrapolação desse modelo proporcionou a elaboração da PVG e simulação do IPTU. Assim, o incremento na alíquota de 1% proporcionaria considerável participação da arrecadação interna para a receita municipal.
A Influência das Edificações no Cálculo do Efeito Gravitacional das Massas Topográficas – Estudo de Caso na Cidade de Porto Alegre – RS (Brasil)
Authors: Ferraz Rodrigo da Silva , Souza Sérgio Florêncio de
Published: February 2021

Um dos objetivos da Geodésia consiste no estudo do geoide e sua determinação é obtida através do conhecimento do campo de gravidade que envolve a distribuição de massas na superfície terrestre. A abordagem clássica para a solução do problema de valor de contorno da Geodésia (PVCG) visando a determinação do geoide assume que os efeitos associados à topografia sejam levados em consideração. A técnica de Modelagem da Topografia Residual (RTM, em inglês Residual Terrain Modelling) tem como objetivo a modelagem o campo de gravidade em função da distribuição de massas associada a topografia onde, nesse tipo de estudo, o conteúdo de alta frequência do espectro relacionado a gravidade é gerado através desse método de redução associado a um modelo digital de elevação (MDE) de alta resolução. Nesse contexto, o objetivo principal desta pesquisa consiste em calcular o valor do potencial gravitacional das massas topográficas oriundas de edificações existentes na cidade de Porto Alegre – RS juntamente com a anomalia de gravidade associada à topografia. Esse estudo foi desenvolvido a partir de uma base vetorial com mais de 200 mil edificações onde o potencial gravitacional foi calculado a partir de um MDE gerado através de dados LiDAR (light detection and ranging). Para auxiliar nos cálculos, foi estimado um modelo de densidades em função das dimensões de cada edificação existentes na base de dados. Assim, foram calculados o valor do potencial gravitacional utilizando os elementos de massa tesseroide, prisma e massa pontual e também o valor da anomalia de gravidade para distâncias de 1 km, 2 km, 5 km, 10 km e 20 km usando a técnica de modelagem RTM. A influência das massas das edificações, neste estudo, representou 10,62% do valor da anomalia de gravidade em comparação com o seu correspondente em relação ao solo.
Avaliação do Impacto da Compatibilização de Referencial das Velocidades na Redução de Coordenadas no PPP
Authors: Freitas Krisley Xavier Soares de , Dal Poz William Rodrigo , Nascimento Lécio Alves
Published: February 2021

No Posicionamento por Ponto Preciso (PPP), as coordenadas estimadas na época do levantamento são referenciadas à materialização do sistema de referência global utilizada nas órbitas dos satélites, atualmente IGb14 (época de coleta dos dados). No entanto, sistemas geodésicos regionais são adotados em diferentes países, como no Brasil, que adota o SIRGAS2000 (época 2000,4). Uma forma de lidar com estas diferenças, é a utilização da transformação de Helmert em conjunto com um modelo de velocidades (que também possui um sistema de referência) para a compatibilização tanto do referencial, quanto da época. Este trabalho tem como objetivo avaliar o desempenho dos modelos VEMOS2009 e VEMOS2017 na aplicação do procedimento de redução de coordenadas para o posicionamento GNSS de alta precisão, considerando ou não a compatibilização do referencial das velocidades obtidas. Utilizou-se dados GNSS em formato RINEX de 175 estações da RBMC processados com o serviço online IBGE-PPP. Diante dos resultados encontrados, pôde-se verificar que a compatibilização de referencial das velocidades se mostrou eficaz para o processo de redução das coordenadas obtidas no IBGE-PPP. Das 1513 coordenadas obtidas com cada uma das quatro velocidades, a VEMOS2009-CCR apresentou 62,92% das menores discrepâncias, seguida pela VEMOS2017-CCR com 29,54%, VEMOS2009-SCR com 7,21% e VEMOS2017-SCR com 0,33%. Em relação à diminuição das discrepâncias após a compatibilização de referencial das velocidades, verificou-se que, para o VEMOS2009, 85,86% das coordenadas apresentaram uma menor discrepância após a atualização. Já para o VEMOS2017 essa diminuição ocorreu em 98,61% das coordenadas.
Strategi Tindakan Preventif Kepolisian Melalui Komunikasi Massa Menangkal Gerakan Terorisme
Authors: Ritonga Muslimin
Published: February 2021

Intolerant actions in the city of Palembang, according to Setara Institute data in 2018, show that Palembang is in the 53rd position as a tolerant city in Indonesia. The preservation of Palembang as one of the tolerant cities in Indonesia is something that needs to be jointly guarded by the government and the community. So that the government in this case through the police can involve the community in the process of preventing acts of terrorism, because they think that the approach by imposing the death penalty on terrorists does not always have implications for the decline in terrorism cases in Indonesia, especially in the city of Palembang. Preventive action can be taken by the police in various forms such as education through literacy in print and online media and can be done in the form of seminars and dialogues. This study is an interactive analysis model developed by Miles and Huberman, namely “We define analysis ass consisting of three concurrent flows of activity: data reduction, data display, and conslution drawing/verification” means that the analysis consists of three main activities that are interrelated. namely data reduction, data display, and conclusion/data verification. This study aims to show the efforts of the police in preventing criminal acts of terrorism in the city of Palembang with a preventive approach to society through mass communication, that in preventing terrorism, active participation from the community is also required.Tindakan intoleran di kota Palembang, dalam data Setara Institute pada tahun 2018 menunjukkan kota Palembang menempati posisi ke 53 sebagai kota toleran di Indonesia. Terjaganya Palembang sebagai salah satu kota toleran di Indonesia, merupakan hal yang perlu dijaga bersama antara pihak pemerintah dengan masyarakat. Sehingga pemerintah dalam hal ini melalui pihak kepolisian dapat melibatkan masyarakat dalam proses pencegahan terhadap tindak terorisme, karena beranggapan bahwa pendekatan dengan cara menjatuhkan hukuman mati pada pelaku teroris, tidak selalu berimplikasi pada menurunnya kasus terorisme di Indonesia, terkhusus di kota Palembang. Tindakan preventif dapat dilakukan oleh pihak kepolisian dengan berbagai bentuk seperti edukasi melalui literasi di media cetak dan online serta dapat dilakukan dengan bentuk seminar dan dialog. penelitian ini adalah analysis interractive model yang dikembangkan oleh Miles dan Huberman, yaitu “We define analysis ass  consisting of three concurrent flows of activity: data reduction, data display, and conslution drawing/verification” artinya bahwa analisis terdiri dari tiga kegiatan utama yang saling berkaitan yaitu reduksi data, display data, dan penarikan kesimpulan/verifikasi data. Penelitian ini bertujuan untuk menunjukkan upaya pihak kepolisian dalam mencegah tindak pidana terorisme di kota Palembang dengan pendekatan preventif terhadap masyarakat melalui komunikasi massa, bahwa dalam mencegah terorisme juga diperlukan partisipasi aktif dari masyarakat.
Discapacidad intelectual: aportes de la bioética al modelo social en educación inclusiva
Authors: Fernández María Martha
Published: February 2021

Este artículo reflexiona sobre el horizonte del modelo social al pensar la inclusión educativa desde una ética que atienda a la diversidad, a los derechos que garanticen la no violencia, la dignidad y el respeto, observando la alteridad interpelada desde la discapacidad intelectual. Pensar un ethos inclusivo y los aportes que puede compartir con la bioética, para agotar el paradigma de déficit que sigue impidiendo la mirada abierta al Otro levinasiano para una educación inclusiva.
Derechos de las personas con discapacidad en un contexto de recursos limitados durante una situación de emergencia sanitaria
Authors: García Ortiz Manuel
Published: February 2021

Se suelen entender los derechos humanos como una especie de poder ilimitado individual al que se puede apelar permanentemente, pero un derecho siempre está limitado. Durante una emergencia sanitaria con recursos finitos e insuficientes los derechos de diferentes personas entran necesariamente en conflicto. El debate en torno a la carga desproporcionada en materia de ajustes razonables en las actuaciones de accesibilidad guarda paralelismo con la justificación de un proceso de triaje en caso de recursos sanitarios limitados. En cualquier caso debe entenderse que una carga es desproporcionada solamente en la medida en que lesione un bien protegido jurídicamente superior.
Evaluation of Touristic Risks While Visiting Ukraine and the Risk Perception by Travelers
Authors: HORIACHKO Kateryna
Published: February 2021

International tourist arrivals increase every year. Ukraine has always been a popular country for spending a vacation. However, many foreign tourists have very bad expectations about the trip to Ukraine. The reason is the military conflict in the East of the country. This article aims to explain whether Ukraine is a risky destination for tourists. For this purpose the determination, estimation and prediction of the risks for tourists in the summer of 2018 was conducted. This study shows that the risk is the main motivation of traveller’s destination choice. The methodology to assess risks for foreign tourists who visit Ukraine is proposed in the article. To confirm the tourist threats evaluation model, an investigation was conducted, which included gathering information about potential touristic risks. The list of probably dangerous and mid-level dangerous touristic risks was determined in the summer n of 2019 in Ukraine. The fact that trips to the territory of Ukraine are safe was established.
Volunteering in the Tourism Industry of the Republic of Kazakhstan
Authors: BAIMBETOVA Assel , MUTALIYEVA Lyailya , KENZHIN Zhaxat , SEIDUALIN Darken , TLEUBERDIYEVA Saltanat , MUSSINA Kamshat
Published: February 2021

The article deals with the specifics of volunteering in tourism industry of the Republic of Kazakhstan. Of particular importance is the problem of developing volunteering movement in tourism sphere of Kazakhstan, which is in the process of formation and integration. Developing volunteering in tourism for Kazakhstan is an important factor in ensuring its growth, forming positive image, creating favourable conditions for the tourism business, increasing awareness about the country, and improving the well-being of its people.

The relevance of the topic is that among various directions of tourism development, volunteering has a powerful, but underestimated resource for creating positive image of a country, solving social, economic and environmental problems, improving the quality of tourism services provided, helping the population in emergencies, different life situations, which may occur in the course of a travel. The purpose of this work is to analyse the theoretical aspects regarding the role of volunteering in tourism development, identifying its trends and problems, as well as developing scientifically based applied recommendations to increase the attractiveness of volunteering in tourism. The results obtained in the course of the study can be implemented in fostering volunteering development in tourism sphere.
Predicting the Intention to Purchase Electric Vehicles in South Africa
Authors: FATOKI Olawale
Published: February 2021

One of the major contributors to the relatively high levels of Greenhouse gas emissions in South Africa is road transportation. Electric vehicles (EVs) have been proposed as one of the solutions to this problem. However, the use of EVs is very limited in South Africa. Drawing on the Theory of Planned Behaviour (TPB), the study investigated the predictors of the intention to purchase EVs in South Africa. The study extended the TPB by adding three individual constructs (environmental consciousness, anticipated guilt and response efficacy) and two situational constructs (perceived benefits and perceived barriers). The cross-sectional survey method was used for data collection in a quantitative study. Descriptive statistics and structural equation modelling were used for data analysis. The results showed significant positive relationships between two TPB constructs (attitude and perceived behavioral control) and EV purchase intention. In addition, the effects of the environmental consciousness, response efficacy, perceived benefits and barriers are significant. Theoretically, the study extended the TPB to develop a model of EV purchase intention from the South African perspective. Empirically, the study added to the body of literature on the determinants of EV purchase intention. Practically, recommendations to improve the purchase of EVs are suggested.
To, co wspólne: 10 lat Praktyki Teoretycznej
Authors: . .
Published: February 2021

Wstęp
Wcielenie, historia i postludzki sposób produkcji.
Authors: Kuźniarz Bartosz
Published: February 2021

Niniejszy tekst stanowi odpowiedź autora na opublikowaną również w niniejszym numerze Praktyki Teoretycznej (189–196) polemiczną recenzję książki Król liczb. Szkice z metafizyki kapitalizmu, autorstwa prof. Andrzeja Ledera.
Wyznania amerykańskich komunistek
Authors: Zborowska Agata
Published: February 2021

Recenzja książki Vivian Gornick. 2020. The Romance of American Communism. London and New York: Verso.
Lęk przed monizmem: Potworność, parapolityka i nowożytne źródła filozofii porównawczej.
Authors: Janik Mateusz
Published: February 2021

Poniższy tekst analizuje sposób przedstawienia monizmu jako doktryny usytuowanej na przecięciu europejskich i azjatyckich tradycji filozoficznych. Prezentacja stanowiska monistycznego w kategoriach potworności, charakterystyczna dla głównego nurtu nowożytnej myśli europejskiej, osadzona zostaje w szerszej perspektywie parapolitycznej krytyki pojęcia suwerenności oraz koncepcji kosmicznego horroru. Zestawienie to opiera się na równoczesnej lekturze przypisów do hasła „Spinoza” w Słowniku krytyczno-historycznym Pierra Bayle’a oraz opowiadania Zew Cthulhu Howarda P. Lovecrafta. W konkluzji artykułu przekonuję, że monizm należy traktować jako jeden z nurtów kolektywistycznie zorientowanej ontologii politycznej. Ontologia taka może stanowić podstawę dla nowego modelu studiów porównawczych, zbudowanych wokół pojęcia dóbr wspólnych i krytycznych wobec nowoczesnej aparatury poznawczo-politycznej, podtrzymującej i naturalizującej procesy akumulacji pierwotnej.
Performatywność wiedzy w ujęciu studiów nad nauka i technologią: Wnioski z analiz pojęciowych oraz badania empirycznego.
Authors: Kołtun Aleksandra
Published: February 2021

Przedmiotem artykułu jest rekonstrukcja ujęcia wiedzy w kategoriach performatywności. W tym celu sięgam do dwóch źródeł. Po pierwsze, przedstawiam najważniejsze aspekty performatywności praktyk naukowych z perspektywy tzw. postkonstruktywistycznych studiów nad nauką i technologią. Po drugie, sięgam do wniosków z badania etnograficznego dotyczącego procesu wytwarzania i popularyzowania wiedzy ukierunkowanej na zmianę rzeczywistości społecznej. Ujęcie wiedzy w kategoriach performatywności ma na celu zwrócenie uwagi na jej specyficzny, interwencyjny charakter, nie zaś wyłącznie zdolność dostarczania adekwatnego opisuświata. Wiedza, która początkowo funkcjonuje w postaci treści dokumentów, ma stać się swoistym standardem – czyli spójną, nienarzucającą się całością złożoną z idei, praktyk i wartości funkcjonującą w odpowiednio przekonstruowanym otoczeniu. Wiedzę rozumianą w kategoriach performatywności należy więc rozumieć jako otwarty proces, który polega na przeplataniu się praktyk dyskursywnych, społecznych i materialnych i w którym uczestniczy wiele postaci wiedzy: wiedza wpisana, ucieleśniona i wykonywana.
Polityka feministyczna anty/postpracy a obrona dochodu podstawowego.
Authors: Weeks Kathi
Published: February 2021

Artykuł stanowi obronę bezwarunkowego dochodu podstawowego przed ostatnią krytyką ze strony lewicy. Wyciągając wnioski z wysuwanego w latach siedemdziesiątych dwudziestego wieku żądania płac za pracę domową, opowiadam się za powszechnym, godnym dochodem podstawowym. Przedstawiam go jako koalicyjną, antyproduktywistyczną, antyrodzinną reformę, która odpowiada na problemy stworzone przez obecny system pracy najemnej i rodziny: nieadekwatne szacowanie naszego wkładu w gospodarkę oraz niesprawiedliwy podział dochodu.
Mainlining databases
Authors: Li Tianyu , Butrovich Matthew , Ngom Amadou , Lim Wan Shen , McKinney Wes , Pavlo Andrew
Published: February 2021

The proliferation of modern data processing tools has given rise to open-source columnar data formats. These formats help organizations avoid repeated conversion of data to a new format for each application. However, these formats are read-only, and organizations must use a heavy-weight transformation process to load data from on-line transactional processing (OLTP) systems. As a result, DBMSs often fail to take advantage of full network bandwidth when transferring data. We aim to reduce or even eliminate this overhead by developing a storage architecture for in-memory database management systems (DBMSs) that is aware of the eventual usage of its data and emits columnar storage blocks in a universal open-source format. We introduce relaxations to common analytical data formats to efficiently update records and rely on a lightweight transformation process to convert blocks to a read-optimized layout when they are cold. We also describe how to access data from third-party analytical tools with minimal serialization overhead. We implemented our storage engine based on the Apache Arrow format and integrated it into the NoisePage DBMS to evaluate our work. Our experiments show that our approach achieves comparable performance with dedicated OLTP DBMSs while enabling orders-of-magnitude faster data exports to external data science and machine learning tools than existing methods.
Quality of sentiment analysis tools
Authors: Kouadri Wissam Mammar , Ouziri Mourad , Benbernou Salima , Echihabi Karima , Palpanas Themis , Amor Iheb Ben
Published: February 2021

In this paper, we present a comprehensive study that evaluates six state-of-the-art sentiment analysis tools on five public datasets, based on the quality of predictive results in the presence of semantically equivalent documents, i.e., how consistent existing tools are in predicting the polarity of documents based on paraphrased text. We observe that sentiment analysis tools exhibit
intra-tool inconsistency
, which is the prediction of different polarity for semantically equivalent documents by the same tool, and
inter-tool inconsistency
, which is the prediction of different polarity for semantically equivalent documents across different tools. We introduce a heuristic to assess the data quality of an augmented dataset and a new set of metrics to evaluate tool inconsistencies. Our results indicate that tool inconsistencies is still an open problem, and they point towards promising research directions and accuracy improvements that can be obtained if such inconsistencies are resolved.
Influence of Social Media on Enterprise Knowledge Sharing Based on Social Network Analysis
Authors: Deng Yongtao
Published: February 2021

Based on the social network analysis method, this paper studies the impact of corporate knowledge-sharing in social media, sorts out the relationship between corporate internal social capital, knowledge-sharing, and individual innovation behavior, and explores the reliability of the scale through exploratory factor analysis validity test to ensure the reliability and rationality of the questionnaire, using improved social networks to construct structural equation models and regression analysis to verify the research model and related assumptions, and found that social media tacit knowledge-sharing in structural capital, cognitive capital the intermediary effect in the influence of individual innovation behavior is remarkable. The sharing attitude has a broad intermediary role between the interactive relationship and the willingness to share. There is a partial intermediary role between the reciprocity and the willingness to share, the common language, and the willingness to share, the common vision, and the willingness to share.