bluuebunny/crossref_metadata_2025 huggingface dataset:
Robust and efficient single-pixel image classification with nonlinear optics
Authors: Kumar Santosh , Bu Ting , Zhang He , Huang Irwin , Huang Yuping
Published: March 2021

We present a hybrid image classifier by feature-sensitive image upconversion, single pixel photodetection, and deep learning, aiming at fast processing of high-resolution images. It uses partial Fourier transform to extract the images’ signature features in both the original and Fourier domains, thereby significantly increasing the classification accuracy and robustness. Tested on the Modified National Institute of Standards and Technology handwritten digit images and verified by simulation, it boosts accuracy from 81.25% (by Fourier-domain processing) to 99.23%, and achieves 83% accuracy for highly contaminated images whose signal-to-noise ratio is only−17dB. Our approach could prove useful for fast lidar data processing, high-resolution image recognition, occluded target identification, and atmosphere monitoring.
Comprehensive vector analysis for electro-optical, opto-electronic, and optical devices
Authors: Qing Ting , Li Shupeng , Tang Xiaohu , Li Ping , Chen Xufeng , Wang Lihan , Fang Yijie , Cao Meihui , Wu Lugang , Pan Shilong
Published: March 2021

High-performance electro-optical (E-O), opto-electronic (O-E), and optical (O-O) devices are widely used in optical communications, microwave photonics, fiber sensors, and so on. Measurement of the amplitude and phase responses are essential for the development and fabrication of these devices. However, the previous methods can hardly characterize the E-O, O-E, and O-O devices with arbitrary responses. Here we propose a comprehensive vector analyzer based on optical asymmetrical double-sideband (ADSB) modulation to overcome this difficulty. The ADSB solves the problem of frequency aliasing and can extract information from both the

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st- and

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1

st-order sidebands. Thus, most devices in photonic applications, including phase modulators, can be characterized. In the experiment, a commercial photodetector, a phase modulator, and a sampled FBG are used as the O-E, E-O, and O-O devices under test, respectively. A frequency resolution of 2 MHz, an electrical sweeping range of 40 GHz, and an optical sweeping range of 80 GHz are achieved.
Microcavity polaritons for topological photonics [Invited]
Authors: Solnyshkov Dmitry D. , Malpuech Guillaume , St-Jean Philippe , Ravets Sylvain , Bloch Jacqueline , Amo Alberto
Published: March 2021

Microcavity polaritons are light-matter quasiparticles that arise from the strong coupling between excitons and photons confined in a semiconductor microcavity. They are typically studied at visible or near visible wavelengths. They combine the properties of confined electromagnetic fields, including a sizeable spin-orbit coupling, and the sensitivity to external magnetic fields and particle interactions inherited from their partly matter nature. These features make polaritons an excellent platform to study topological phases in photonics in one and two-dimensional lattices, whose band properties can be directly accessed using standard optical tools. In this review, we describe the main properties of microcavity polaritons and the main observations in the field of topological photonics, which include, among others, lasing in topological edge states, the implementation of a polariton Chern insulator under an external magnetic field, and the direct measurement of fundamental quantities, such as the quantum geometric tensor and winding numbers in one- and two-dimensional lattices. Polariton interactions open exciting perspectives for the study of nonlinear topological phases.
Effects of a quiet point on a Kerr microresonator frequency comb
Authors: Tetsumoto Tomohiro , Jiang Jie , Fermann Martin E. , Navickaite Gabriele , Geiselmann Michael , Rolland Antoine
Published: March 2021

A quiet point, an operating point of pump-resonance detuning that minimizes frequency fluctuation due to nonlinear effects inside a resonator, has been employed for phase noise reduction of a soliton Kerr microresonator frequency comb (microcomb). Naturally, it is expected that the use of the point will also improve performances of a microcomb in terms of frequency stability and faithfulness in a phase locked loop. In this study, we experimentally investigate the effect in a microcomb with a repetition frequency of 300 GHz. We obtain a lowest fractional frequency instability at a quiet point of 1.5 × 10−9 at 1 second, which is 44 times lower than free-running instability. Phase-locking of a microcomb to a stabilized fiber comb is demonstrated to evaluate performance in a feedback loop, where in-loop-limited relative fractional frequency instability between the microcomb and the fiber comb of 6.8 × 10−13 is obtained as an indicator of the stability limitation.
Single-sweep volumetric optoacoustic tomography of whole mice
Authors: Kalva Sandeep Kumar , Dean-Ben Xose Luis , Razansky Daniel
Published: March 2021

Applicability of optoacoustic imaging in biology and medicine is determined by several key performance characteristics. In particular, an inherent trade-off exists between the acquired field-of-view (FOV) and temporal resolution of the measurements, which may hinder studies looking at rapid biodynamics at the whole-body level. Here, we report on a single-sweep volumetric optoacoustic tomography (sSVOT) system that attains whole body three-dimensional mouse scans within 1.8 s with better than 200 μm spatial resolution. sSVOT employs a spherical matrix array transducer in combination with multibeam illumination, the latter playing a critical role in maximizing the effective FOV and imaging speed performance. The system further takes advantage of the spatial response of the individual ultrasound detection elements to mitigate common image artifacts related to limited-view tomographic geometry, thus enabling rapid acquisitions without compromising image quality and contrast. We compare performance metrics to the previously reported whole-body mouse imaging implementations and alternative image compounding and reconstruction strategies. It is anticipated that sSVOT will open new venues for studying large-scale biodynamics, such as accumulation and clearance of molecular agents and drugs across multiple organs, circulation of cells, and functional responses to stimuli.
Study of compositions of musks in different types secreted by forest musk deer (Moschus berezovskii)
Authors: Zhang Tianxiang , Jin Weijiang , Yang Shuang , Li Yimeng , Zhang Meishan , Shi Minghui , Guo Xiaobing , Li Dawei , Zhang Baofeng , Liu Shuqiang , Hu Defu
Published: March 2021

Musk is a secretion of the forest musk deer (Moschus berezovskii). Normal musk is a brown solid secretion with a light fragrance. In this study, abnormal types of musk, namely, white and black musks, were discovered during the musk collection process. Researchers have long been concerned with the components of musk. Herein, GC-MS, headspace solid-phase microextraction (HS-SPME), and nonmetric multidimensional scaling (NMDS) were used to analyze the nonpolar organic components, volatile organic components, and sample similarities among different musks, respectively. Abundant steroid hormones and proteins were also found in the musk. The steroid hormone concentrations were detected using a radioimmunoassay (RIA). Proteins in the samples were hydrolyzed and the amino acids concentrations were detected. The steroid hormone and amino acid concentrations in white musk were significantly lower than in normal and black musks (p<0.05). The components were subjected to NMDS analysis to understand the differences in components among different types of musk, with the results suggesting that white musk was different from normal and black musks.
Differences between cancer patients and others who use medicinal Cannabis
Authors: Cousins Matthew M. , Jannausch Mary , Jagsi Reshma , Ilgen Mark
Published: March 2021

Background

Cancer patients have been at the forefront of policy discussions leading to legalization of medical Cannabis (marijuana). Unfortunately, Cannabis use among those with cancer is poorly understood.

Methods

A diverse group of patients seeking certification for medical Cannabis in the state of Michigan were surveyed at the time of their presentation to medical dispensaries. The survey assessed demographics, employment/disability, pain, physical functioning, mental health, mode of Cannabis use, and frequency/amount of Cannabis use. Chi-square and t-tests were performed to compare those who did and did not endorse cancer diagnosis.

Results

Analysis of data from 1485 adults pursuing medical Cannabis certification, including 72 (4.8%) reporting a cancer diagnosis, indicated that those with cancer were older [mean age 53.4 years (SD = 10.5) vs. 44.7 years (SD = 13.0); p<0.001] than those without cancer. They also differed regarding employment status (p<0.001; working: 20.8% vs. 46.2%; disabled: 44.4% vs. 26.5% for those with vs. those without cancer, respectively). Those with cancer used less Cannabis (p = 0.033 for quantity used) and used Cannabis less often (p = 0.032 for frequency of use); they less frequently endorsed smoking Cannabis (80% vs 91%; p = 0.015). There was a non-significant trend to increased edible use in those with cancer (57% vs. 44%; p = 0.052).

Conclusions

Patients with cancer who are seeking medical Cannabis are different from those seeking medical Cannabis without cancer, and they report using Cannabis differently. Further research to characterize the patterns and consequences of Cannabis use in cancer patients is needed.
Impact of different control policies for COVID-19 outbreak on the air transportation industry: A comparison between China, the U.S. and Singapore
Authors: Meng Fanyu , Gong Wenwu , Liang Jun , Li Xian , Zeng Yiping , Yang Lili
Published: March 2021

Many countries have been implementing various control measures with different strictness levels to prevent the coronavirus disease 2019 (COVID-19) from spreading. With the great reduction in human mobility and daily activities, considerable impacts have been imposed on the global air transportation industry. This study applies a hybrid SARIMA-based intervention model to measure the differences in the impacts of different control measures implemented in China, the U.S. and Singapore on air passenger and air freight traffic. To explore the effect of time span for the measures to be in force, two scenarios are invented, namely a long-term intervention and a short-term intervention, and predictions are made till the end of 2020 for all three countries under both scenarios. As a result, predictive patterns of the selected metrics for the three countries are rather different. China is predicted to have the mildest economic impact on the air transportation industry in this year in terms of air passenger revenue and air cargo traffic, provided that the control measures were prompt and effective. The U.S. would suffer from a far-reaching impact on the industry if the same control measures are maintained. More uncertainties are found for Singapore, as it is strongly associated with international travel demands. Suggestions are made for the three countries and the rest of the world on how to seek a balance between the strictness of control measures and the potential long-term industrial losses.
Spontaneous grouping of saccade timing in the presence of task-irrelevant objects
Authors: Takeya Ryuji , Nakamura Shuntaro , Tanaka Masaki
Published: March 2021

Sequential movements are often grouped into several chunks, as evidenced by the modulation of the timing of each elemental movement. Even during synchronized tapping with a metronome, we sometimes feel subjective accent for every few taps. To examine whether motor segmentation emerges during synchronized movements, we trained monkeys to generate a series of predictive saccades synchronized with visual stimuli which sequentially appeared for a fixed interval (400 or 600 ms) at six circularly arranged landmark locations. We found two types of motor segmentations that featured periodic modulation of saccade timing. First, the intersaccadic interval (ISI) depended on the target location and saccade direction, indicating that particular combinations of saccades were integrated into motor chunks. Second, when a task-irrelevant rectangular contour surrounding three landmarks ("inducer") was presented, the ISI significantly modulated depending on the relative target location to the inducer. All patterns of individual differences seen in monkeys were also observed in humans. Importantly, the effects of the inducer greatly decreased or disappeared when the animals were trained to generate only reactive saccades (latency >100 ms), indicating that the motor segmentation may depend on the internal rhythms. Thus, our results demonstrate two types of motor segmentation during synchronized movements: one is related to the hierarchical organization of sequential movements and the other is related to the spontaneous grouping of rhythmic events. This experimental paradigm can be used to investigate the underlying neural mechanism of temporal grouping during rhythm production.
Unbiased analysis of obesity related, fat depot specific changes of adipocyte volumes and numbers using light sheet fluorescence microscopy
Authors: Theobalt Natalie , Hofmann Isabel , Fiedler Sonja , Renner Simone , Dhom Georg , Feuchtinger Annette , Walch Axel , Hrabĕ de Angelis Martin , Wolf Eckhard , Wanke Rüdiger , Blutke Andreas
Published: March 2021

In translational obesity research, objective assessment of adipocyte sizes and numbers is essential to characterize histomorphological alterations linked to obesity, and to evaluate the efficacies of experimental medicinal or dietetic interventions. Design-based quantitative stereological techniques based on the analysis of 2D-histological sections provide unbiased estimates of relevant 3D-parameters of adipocyte morphology, but often involve complex and time-consuming tissue processing and analysis steps. Here we report the application of direct 3D light sheet fluorescence microscopy (LSFM) for effective and accurate analysis of adipocyte volumes and numbers in optically cleared adipose tissue samples from a porcine model of diet-induced obesity (DIO). Subcutaneous and visceral adipose tissue samples from DIO-minipigs and lean controls were systematically randomly sampled, optically cleared with 3DISCO (3-dimensional imaging of solvent cleared organs), stained with eosin, and subjected to LSFM for detection of adipocyte cell membrane autofluorescence. Individual adipocytes were unbiasedly sampled in digital 3D reconstructions of the adipose tissue samples, and their individual cell volumes were directly measured by automated digital image analysis. Adipocyte numbers and mean volumes obtained by LSFM analysis did not significantly differ from the corresponding values obtained by unbiased quantitative stereological analysis techniques performed on the same samples, thus proving the applicability of LSFM for efficient analysis of relevant morphological adipocyte parameters. The results of the present study demonstrate an adipose tissue depot specific plasticity of adipocyte growth responses to nutrient oversupply. This was characterized by an exclusively hypertrophic growth of visceral adipocytes, whereas adipocytes in subcutaneous fat tissue depots also displayed a marked (hyperplastic) increase in cell number. LSFM allows for accurate and efficient determination of relevant quantitative morphological adipocyte parameters. The applied stereological methods and LSFM protocols are described in detail and can serve as a guideline for unbiased quantitative morphological analyses of adipocytes in other studies and species.
Spatial variability of soil nutrients in seasonal rivers: A case study from the Guo River Basin, China
Authors: Li Cangyu , Wang Xinhui , Qin Mingzhou
Published: March 2021

Agricultural non-point source pollution refers that substance such as nitrogen and phosphorus cause water environment pollution through surface runoff and underground leakage in agricultural production activities. Water environment pollution related to agricultural non-point source pollution in the Huaihe River Basin is becoming more and more prominent. Therefore, it is necessary to analyze the characteristic of soil nutrient in cultivated land and explore the spatial variation and influencing factors of soil nutrients at the watershed scale. A total of 239 topsoil samples were collected from the Guo river basin, and the related factors of soil organic matter (SOM), total carbon (TC), total nitrogen (TN), total phosphorous (TP), total potassium (TK) and potential of hydrogen (PH) were studied by using descriptive statistics and geostatistical methods. The results showed that TK and PH were weak variation, while SOM, TC, TN and TP were medium variation. Soil pH, TP, TK, TC and SOM had moderate spatial variability, which was caused by both random factors and structural factors such as soil texture, soil type, fertilization and local ecological restoration management. Soil TN showed a strong spatial correlation, mainly due to soil texture and soil type. If the recommended fertilization amount is still given based on the average value of soil nutrients ignoring the spatial heterogeneity, it will not only affect crop production efficiency and fertilizer utilization, but may also cause greater environmental pollution. This study can provide a theoretical basis for the management of agro-ecological environments throughout the basin area.
Psychological impact of Covid-19 pandemic on oncological patients: A survey in Northern Italy
Authors: Pigozzi Eva , Tregnago Daniela , Costa Lucia , Insolda Jessica , Turati Enrico , Rimondini Michela , Donisi Valeria , Madera Pietro , Fiorica Francesco , Giuliani Jacopo , Greco Filippo , Mercanti Anna , Trolese Annarita , Furlani Lara , Piacentini Paolo , Durante Emilia , Mandarà Marta , Pilotto Sara , Avancini Alice , Trestini Ilaria , Zaninelli Marta , Moretti Francesca , Milella Michele , Bonetti Andrea
Published: March 2021

The psychological impact of the Covid 19 pandemic on cancer patients, a population at higher risk of fatal consequences if infected, has been only rarely evaluated. This study was conducted at the Departments of Oncology of four hospitals located in the Verona area in Italy to investigate the psychological consequences of the pandemic on cancer patients under active anticancer treatments. A 13-item ad hoc questionnaire to evaluate the psychological status of patients before and during the pandemic was administered to 474 consecutive subjects in the time frame between April 27th and June 7th 2020. Among the 13 questions, 7 were considered appropriate to elaborate an Emotional Vulnerability Index (EVI) that allows to separate the population in two groups (low versus high emotional vulnerability) according to observed median values. During the emergency period, the feeling of high vulnerability was found in 246 patients (53%) and was significantly associated with the following clinical variables: female gender, being under chemotherapy treatment, age ≤ 65 years. Compared to the pre-pandemic phase, the feeling of vulnerability was increased in 41 patients (9%), remained stably high in 196 (42%) and, surprisingly, was reduced in 10 patients (2%). Overall, in a population characterized by an high level of emotional vulnerability the pandemic had a marginal impact and only a small proportion of patients reported an increase of their emotional vulnerability.
Rap and cultural change: Authenticity and hybrid identities in the music of rappers of African descent in Finland
Authors: Malmberg Mikko
Published: March 2021

In many European countries, the different local rap music scenes were originally founded by marginalized ethnic minority youths, and in academia, the genre is often discussed as resistance music that these youths employ to challenge oppressive cultural hegemonies. Thus, the focus in academic research has often been on rappers who are openly political and critical towards their societies in their music. However, as rap has become highly popular and influential within global youth culture, many academics have become increasingly concerned about its messages, arguing that commercial rap with apolitical, materialistic and self-obsessed lyrics have replaced rap’s anti-hegemonic resistance messages. This article challenges the idea that the majority of contemporary rap music is either harmful or insignificant and that only openly political and socially critical rap is worthy of academic praise. Instead, by focusing on the music of Finnish rappers of African descent, this article examines how rap music by marginalized ethnic minorities can challenge oppressive cultural hegemonies and foster cultural change because of an element that unites all rap: the central role of authenticity.
‘Dress sense of a queen’: Cecil Beaton’s queering of Britain’s royal past
Authors: Janes Dominic
Published: March 2021

The origins of camp can be traced by exploring the ways in which the past was queered during the inter-war period. Cecil Beaton was establishing himself as one of the world’s leading fashion photographers. He and many of his friends were fascinated by the styles of the period before 1914. That interest extended to cross-dressing and the construction of photographic collages that ironically juxtaposed the fashions of the past and the present. The effect of this was to make the dresses and aristocratic social mores of the fin de siècle appear amusingly excessive. In the process the image of royalty was reinvented through travesty and social life in Britain was invested with queer opportunity.
Mid-century cultural tectonics: Unpacking the ‘Ying Tong Song’ core sample
Authors: Wickham Christopher J.
Published: March 2021

The Goons’ ‘Ying Tong Song’ is an unlikely candidate for a popular music chart hit. Yet it held a place in the British top ten for six weeks in 1956. On the face of it, this novelty record presents a musical variation on eccentric Goon themes that had become familiar to British radio audiences over the preceding five years of Goon Shows: silly voices, absurd situations, non sequiturs, sound effects, chaos and seeming non-sense. On closer examination, however, the ‘Ying Tong Song’ reveals itself to be an encapsulation of defining conflicts, phobias and preoccupations of the mid-1950s, such that it takes on the character of a geological core sample. By analysing the ‘Ying Tong Song’ according to its principal operative contexts (British national history, cultural history, musical tastes, radio humour, language and humour theory), this article unpacks key layers of signification that define the Ying Tong phenomenon.
Collaborative self-translation in the screenplays of The Godfather trilogy
Authors: Gefen Rina , Weissbrod Rachel
Published: March 2021

This study examines the adaptation of the novel The Godfather into screenplays by author Mario Puzo and director Francis Ford Coppola. Combining translation and adaptation studies, we regard this adaptation as a case of ‘collaborative self-translation’, a concept that has so far been rarely applied beyond translations studies, and use a model designed for the study of adaptation to analyse it. However, we expand the model by applying it to screenplays, and examining prequel and sequel, which are mainly present in the second and third screenplays of the trilogy. In addition to calling attention to the screenplay as a vital stage in the transformation of a literary work into a film, this article shows that the adaptation model can be a valuable tool to systematically analyse adapted screenplays, thus expanding the methodological repertoire of both adaptation and screenwriting studies. Moreover, it was found that the combined discussion of adaptation, sequel and prequel may contribute to an understanding of the complex relations between them and the source. Based on these theoretical insights, we show that through merging the creative powers of Puzo and Coppola, the screenplays shed new light on social, family and cultural themes that appear to some extent in the novel, taking the conventions of the crime genre in new and surprising directions.
The Art of Screen Adaptation: Top Writers Reveal Their Craft, Alistair Owen (2020)
Authors: Gist Christopher
Published: March 2021

Review of: The Art of Screen Adaptation: Top Writers Reveal Their Craft, Alistair Owen (2020)

Harpenden: Old Castle Books Ltd., 288 pp.,

ISBN 978-0-85730-227-4, p/bk, £18.99

ISBN 978-0-85730-228-1, ebook, £7.59
The Notorious Ben Hecht: Iconoclastic Writer and Militant Zionist, Julien Gorbach (2019)
Authors: Tieber Claus
Published: March 2021

Review of: The Notorious Ben Hecht: Iconoclastic Writer and Militant Zionist, Julien Gorbach (2019)

West Lafayette, IN: Purdue University Press, 504 pp.,

ISBN 978-1-55753-865-9, h/bk, $32.95

 

Ben Hecht: Fighting Words, Moving Pictures (Jewish Lives), Adina Hoffman (2019)

New Haven, CT: Yale University Press, 264 pp.,

ISBN 978-0-30018-042-8, h/bk, $26
Da criação ao Roteiro: Teoria e Prática (‘From creation to script: Theory and practice’), 5th ed., Doc Comparato (2018)
Authors: Davino Glaucia
Published: March 2021

Review of: Da criação ao Roteiro: Teoria e Prática (‘From creation to script: Theory and practice’), 5th ed., Doc Comparato (2018)

Sao Paulo, SP: Summus Editorial, 720 pp.,

ISBN 978-8-53231-113-9, p/bk, $84.87
No matter who: What makes one a relativist?
Authors: Pérez-Navarro Eduardo
Published: March 2021

As part of her argument that relativism and contextualism are nothing but notational variants of each other, Stojanovic holds that contextualism is flexible enough to achieve whatever relativism might do if the matter is what truth-value is assigned to each pair of sentence and context. In this paper, I reply to this statement by arguing that contextualism cannot be made as flexible as relativism without in fact turning it into a version of relativism. The key to my response to Stojanovic is that, while relativism relativizes utterance truth, contextualism does not, so parameters that are not fixed at the context of utterance will be accessible for the relativist, but not for the contextualist. Although the relativity of utterance truth follows as soon as propositional truth is relativized to contexts of assessment, as the relativist does, it is easy to lose sight of this fact if we identify the context of assessment with the assessor’s context. Hence, the point of this paper is that the difference between relativism and contextualism is not one as to whose parameters play a role in determining the sentence’s truth-value. If it were, contextualism could indeed be made just as flexible as relativism.
ARTES DO CORPO E EDUCAÇÃO
Authors: Gonçalves Jean Carlos , Brand Ángela Chaverra , Porteiro Tiago Mora
Published: March 2021

Artes do Corpo e Educação
CORPO-SIGNO: DIÁLOGOS ENTRE LABAN E BAKHTIN NO ENSINO SUPERIOR EM ARTES CÊNICAS
Authors: Gonçalves Jean Carlos , Castilho Thais
Published: March 2021

O presente artigo é fruto de um estudo sobre as reverberações das práticasde Ballet Clássico no ensino superior em Artes Cênicas, que promoveu a triangulação entre as pesquisas em dança, o Pensamento Labaniano e a perspectiva dialógica de Bakhtin e o Círculo. Neste trabalho, o objetivo consiste em discutir a noção de corpo-signo. Como resultados, compreendeu-se o corpo como uma instância viva, que mergulha na cultura imaterial de sua sociedade para incorporar e enviesar esteticamente os signos nela pulsantes, por isso, é considerado um corpo-signo, o qual profere enunciados-dançados carregados de múltiplas vozes, impregnados de sentido, sendo capaz de transformar constantemente seu horizonte plásticovalorativo.
TEMAS EMERGENTES EM ESTUDOS DO E NO CORPO NO CURSO DE PEDAGOGIA
Authors: Salgado dos Santos Lombardi Lucia Maria
Published: March 2021

O objeto desta pesquisa são os temas emergentes nos estudos do eno corpo no curso de Pedagogia, tendo como questão-problema: quais são asprincipais demandas de conhecimento de futuras pedagogas no campo da educaçãodo corpo? O artigo apresenta resultados da interpretação de dados coletados pormeio de narrativas de estudantes no período de 2014 a 2020 no âmbito de umadisciplina da graduação. Foram analisadas 645 respostas para a pergunta: “Qual seu maior encantamento e sua maior decepção em relação à questão do corpo e domovimento ao longo de sua vida escolar?”. Os resultados revelam que o debatesobre o corpo dentro da instituição educativa precisa de abordagem interdisciplinarno que tange aos temas a serem estudados, levando em conta a diversidade doscorpos que transitam pelos espaços da escola e da universidade.
PROVOCAÇÕES E PRÁTICAS DE UM CORPO NO ENCONTRO DE CRIANÇAS COM KANDINSKY
Authors: Moraes João Carlos Pereira de
Published: March 2021

O presente artigo visa analisar, a partir da problematização dos estudos de Kandinsky, modos de pensar o corpo por alunos do quinto ano do Ensino Fundamental do Colégio Aplicação da Universidade Federal de Santa Catarina – UFSC. Para tanto, utilizou-se da cartografia como método de pesquisa-intervenção, mais especificamente uma oficina dispositivo a partir dos estudos do pintor dos movimentos corporais da bailarina expressionista Gret Palucca. Da experiência, considerou-se que alguns saberes em relação ao corpo entraram em evidência, tais como a proporção e o debate sobre o que constitui um corpo.
CORPO E ARTE MARCIAL NO CINEMA: UMA LEITURA DA RELAÇÃO MESTREDISCÍPULO NO FILME KARATÊ KID
Authors: Silva Luiz Arthur Nunes da
Published: March 2021

Nesse texto, buscamos acessar o imaginário mítico e poético das Artes Marciais por meio da linguagem cinematográfica, posto que esta relação com a arte traz à tona uma dimensão sensível que pode disparar reflexões acerca da relação mestre e discípulo. Nessa análise estética, partimos da compreensão de corpo apresentado nos estudos fenomenológicos propostos pelo filósofo francês Maurice Merleau-Ponty, que nos mostra que o corpo não tem outra maneira de ser corpo senão vivenciando as experiências, criando significações na sua relação primordial com o mundo. Da mesma forma, assumimos também a atitude fenomenológica na condição de método, permitindo que as reflexões aqui anunciadas sobre o corpo, o cinema e as Artes Marciais possam vislumbrar o fenômeno educativo que atravessa e é atravessado pela relação mestre e discípulo. Pensamos que o acesso à linguagem expressiva na obra cinematográfica constitui-se como um arquivo memorável e imemorial de acontecimentos que nos transportam para realidades e mundos compartilhados pela presença perceptiva, despertando nossas sensações e acendendo nossa reflexão sobre temas, eventos, emoções, entre outros aspectos que permeiam a vida e a existência humana.
ENTRE O CORPO-SUPORTE DE COMUNICAÇÃO E O CORPO DIPLOMÁTICO: NARRATIVAS DE TRADUTORES/INTÉRPRETES DE LÍNGUA BRASILEIRA DE SINAIS
Authors: Bonin Iara Tatiana , Goulart Daiana San Martins
Published: March 2021

Inscrito na perspectiva teórica dos Estudos Culturais, o presente artigo apresenta uma abordagem das formas de educar e conformar corpos de tradutores/ intérpretes de Língua Brasileira de Sinais – Libras. Tomando como base empírica narrativas de quatro tradutores/intérpretes de Libras que atuam em diferentes instituições de Ensino Superior no estado do Rio Grande do Sul, e, ainda, um código de conduta da profissão, o objetivo é analisar como se constituem significados e se conformam os corpos no ato de traduzir e interpretar. Argumenta-se que, por meio de distintos processos formativos e de ação cotidiana, inscrevem-se nos corpos dos profissionais maneiras de proceder, de modo a fazê-los corresponder ao propósito de ser corpo-suporte para a comunicação. Nestes corpos que suportam e viabilizam a comunicação entre usuários de línguas de diferentes modalidades, inscreve-se uma dimensão diplomática, que, neste artigo, é analisada a partir de três direções principais: a presunção de um corpo-suporte transparente; o empenho de um corpo-suporte diplomático e a visibilidade de um corpo-suporte exposto.
A IMAGEM DO CORPO KAINGANG NOS CORAN-BANG-RÊ NO SÉCULO XVIII
Authors: Maciel Freire Luane , Gomes de Assis Pimentel Giuliano
Published: March 2021

O presente trabalho provém dos resultados obtidos durante a pesquisa de dissertação, a qual se debruçou em compreender a constituição de uma série de documentações iconográficas que retrataram um dos primeiros contatos registrados entre as populações indígenas Kaingang com os colonizadores, as quais estão localizadas no atual estado do Paraná. Portanto, objetiva-se analisar os delineamentos compositivos do corpo Kaingang traçados na sequência de 40 iconografias atribuídas ao engenheiro militar Joaquim José de Miranda no século XVIII, encomendadas para retratar a décima expedição militar ao mando da Coroa de Portugal aos sertões do Campos de Guarapuava nos anos de 1771-1772, com o desígnio de levantar estratégias para ocupar esta região. Tendo em vista que na vasta produção iconográfica sobre os indígenas no Brasil há poucos materiais que apresentam o registro histórico sobre os Kaingang no processo de colonização do Estado do Paraná, as questões norteadoras do respectivo trabalho consistem: Quais os interesses políticos e econômicos da colônia que impulsionaram a construção iconográfica corporal desta população? De que maneira o fog (não indígena ruim na língua Kaingang) produziu a imagem do corpo Kaingang no século XVIII, como ponto de fronteira no centro da dinâmica do contato e quais de tantos ângulos da história as imagens contam? Para a compreensão de tais problematizações, realiza-se uma análise documental pautada nas determinações materiais historicamente situadas na condição de produção das iconografias, assim se busca o diálogo entre os conhecimentos da área de Artes Visuais e Educação Física, por meio de aproximações entre os estudos da imagem e da sociologia do corpo. Em diálogo com a hermenêutica, interpretam-se as ilustrações fundadas no método iconológico desenvolvido pelo historiador de arte Erwin Panofsky (1892-1968), com a proposta de reconstrução do modo de produção do contexto histórico das imagens em três níveis de análise. Com as investigações, foi possível constatar que o corpo indígena situado nas relações de poder recebeu uma atenção especial dos colonizadores, visando a suas características e potencialidades a seu favor desde os primeiros contatos entre estas populações no século XVI. Na dada conjuntura, o corpo Kaingang no século XVIII, além de ser ponto de fronteira das relações de contato entre militares e Kaingang, foi visualizado como ponto de estratégia bélica para ser utilizado conforme os interesses coloniais deste período. As imagens a respeito deste corpo foram produzidas a partir da lógica militar, no momento em que a imagem era concebida como um meio de se projetar algo, isto é, os traçados e os riscos eram designados a um intuito, ocorrendo uma estreita relação entre o desenho e os interesses políticos. Perante a estas considerações, esta pesquisa constitui uma parte da história iconográfica do corpo Kaingang, auxiliando na compreensão histórica e nas demandas educacionais a respeito desta conjuntura.
Facing urban challenges
Authors: Lados Mihály , Pongrácz Ferenc
Published: March 2021

Closed to three-quarters of Europeans live in cities today, and by the growth of the population worldwide, this ratio is ever increasing. The accelerated speed of urbanization poses unprecedented challenges on people, cities, and the environment. Sustainability became a key global objective since Rio via Tokyo until Paris Agreement. The United Nations prepared an agenda for a better and more sustainable future for all. The 17 Goals are related to global challenges such as climate change, poverty, and the effects of urbanization. Over the last decade, various Smart City approaches have emerged among the government, non-profit sectors, and industries to use Information and Communication Technology as a tool to manage these challenges and to improve the quality of life for their citizens. At the same time, Industry 4.0, the digitalization of industries, has diffused across the world, setting the scene for a new stage of innovation yet keeping the competitiveness of business players. Tungsram, a multinational corporation headquartered in Hungary, has refocused its mission and stood up to expand its product portfolio by including Smart City solutions. Tungsram Edge focuses on three major Smart City offerings: indoor farming, efficient buildings, and Smart Solutions. Indoor farming (AgriTech), a science-based approach to agriculture, uses the latest research to establish precision indoor farming facilities. Efficient buildings (PropTech) has come to life to support the universal goal of reducing cities’ ecological footprint. Each smart solution has a direct or indirect effect on several objectives of the Sustainable Development Goals of the United Nations. The first part of the paper identifies the key contemporary challenges of cities and industries and the evolution and links of Smart City and Industry 4.0 approaches. The second part of the paper is a case study of a multinational company headquartered in Hungary entering into these processes by building a Smart City Action Plan and by developing key smart products (Smart City portfolio) to react to and to provide solutions for urban challenges.
Értékválasztás, etikai dilemmák
Authors: Kazainé Ónodi Annamária
Published: March 2021

A tulajdonosi értékteremtésre való koncentrálás és az érintettek figyelembevétele a döntéshozatal során nem zárják ki egymást. Ugyanakkor vannak olyan döntési szituációk, amikor választani kell a tulajdonosi érdekek, illetve valamely érintett csoport preferenciája, prioritása között. Egy-egy konfliktusos helyzet után egy egészséges egyensúlyi helyzetnek kell kialakulnia a gazdaság hatékony működése érdekében, amelyben szerepet játszik a gazdasági racionalitás mellett a megegyezés, a morális értékrend is. Jelen cikk két olyan kutatás eredményét mutatja be, amely azt vizsgálta, hogy adott kiélezett, szembeállított alternatívák közötti választást igénylő döntési szituációban a válaszadók a tulajdonosi értékteremtésnek vagy valamely érintett csoportnak biztosítanak-e prioritást. Az eredmények a jogszabályoknak való megfelelés, illetve a külső környezet meghatározó szerepére is rámutattak.
The Point Spread Function Variations inside Wide-field Astonomical Images
Authors: Anisimova Elena , Bednář Jan , Páta Petr
Published: March 2021

The Point Spread Function (PSF) of the astronomical imaging system is usually approximated by a Gaussian or Moffat function. For simplification, the astronomical imaging system is considered to be time and space invariant. This means that invariable PSF within an exposed image is assumed. If real wide-field imaging systems are considered, this presumption is not fulfilled. In real systems, stronger optical aberrations are expected (especially coma) at greater distances from the center of the captured image. This impacts the efficiency of stellar astrometry and photometry algorithms, so it is necessary to know the PSF variation. In this paper, we perform the first step toward assigning PSF changes: we study the dependence of the Moffat function fitting parameters (FWHM and the atmospheric scattering coefficient ) on the position of a stellar object.
Astroparticle Physics Today
Authors: Giovannelli Franco
Published: March 2021

In this short review paper I will draw attention to the most important steps made in the past decade toward a better understanding of the physics governing our Universe. The results that I will discuss are drawn from the photonic astrophysics, particle astrophysics, and neutrino astrophysics, which constitute the main tools for exploring the Universe. The union of these three tools has given rise to a new field of physics known as Astroparticle Physics. Because of the limited length of this paper, I have selected only a few arguments that, in my opinion, have been crucial for the progress of Physics.
Photometric Analysis of Pi of the Sky Data
Authors: Opiela Rafał , Małek Katarzyna , Mankiewicz Lech , Siudek Małgorzata , Sokołowski Marcin , Żarnecki Aleksander Filip
Published: March 2021

Two fully automatic Pi of the Sky detectors with a large field of view, located in Spain (INTA) and in Chile (SPDA) observe the sky in search of rare optical phenomena, and also collect observations which include many kinds of variable stars. To be able to draw proper conclusions from the data that is received, adequate quality of the detectors is very important. Pi of the Sky data are subject to systematic errors caused by various factors, e.g. cloud cover seen as significant fluctuations in the number of stars observed by the detector, problems with conducting mounting, a strong background of the moon or the passage of a bright object, e.g. a planet, near the observed star. Some of these adverse effects are already detected during cataloging of the individual measurements, but this is not sufficient to make the quality of the data satisfactory for us. In order to improve the quality of our data, we developed two new procedures based on two different approaches. In this paper we will say some words about these procedures, give some examples, and show how these procedures improve the quality of our data.
Computer Simulation of a Plasma Vibrator Antenna
Authors: Bogachev Nikolay N. , Bogdankevich Irina L. , Gusein-zade Namik G. , Tarakanov Vladimir P.
Published: March 2021

The use of new plasma technologies in antenna technology is widely discussed nowadays. The plasma antenna must receive and transmit signals in the frequency range of a transceiver. Many experiments have been carried out with plasma antennas to transmit and receive signals. Due to lack of experimental data and because experiments are difficult to carry out, there is a need for computer (numerical) modeling to calculate the parameters and characteristics of antennas, and to verify the parameters for future studies. Our study has modeled plasma vibrator (dipole) antennas (PDA) and metal vibrator (dipole) antennas (MDA), and has calculated the characteristics of PDAs and MDAs in the full KARAT electro-code. The correctness of the modeling has been tested by calculating a metal antenna using the MMANA program.
Local Magnetohydrodynamic Characteristics of the Plasma Stream generated by MPC
Authors: Cherednychenko Tatyana N. , Garkusha Igor E. , Chebotarev Vladimir V. , Solyakov Dmytro G. , Petrov Yuriy V. , Ladygina Maryna S. , Eliseev Dmytro V. , Chuvilo Alexander A.
Published: March 2021

This paper investigates the spatial distributions of electrical current which flows inside the plasma stream generated by a magnetoplasma compressor (MPC). Two different modes of MPC operation with different gas supply scenarios have been applied in the experiments presented here. The first is the operation mode with a pulse injection of xenon into the interelectrode space, and the second is the operation mode with residual helium in the chamber and local injection of xenon directly into the compression zone. The maximum value of the electric current observed outside the MPC channel is 15 ÷ 20% of the total discharge current. Electric current vortices were discovered in the plasma stream. The amplitude of the current in the vortices reaches 50% of the total discharge current. The maximum EUV radiation power was measured in the mode of MPC operation with local xenon injection. Power in the wave range 12.2 ÷ 15.8 nm achieves up to 16 ÷ 18 kW.
The Research on Atmospheric Pressure Water Vapour Plasma Generation and Application for the Destruction of Wastes
Authors: Grigaitiene Viktorija , Tamošiunas Andrius , Valatkevičius Pranas
Published: March 2021

In the Lithuanian Energy Institute an experimental atmospheric pressure Ar/water vapour plasma torch has been designed and tested. The power of plasma torch was estimated 40 ÷ 69 kW, the mean temperature of plasma jet at the exhaust nozzle was 2300÷2900K. The chemical compositionof water vapour plasma was established from the emission spectrum lines at 300 ÷ 800nm range. The main species observed in Ar/water vapour plasma were: Ar, OH, H, O, Cu. The experiments on water vapour steam reforming were performed. The results confirmed that water vapour plasma has the unique properties – high enthalpy and environmentally friendly conditions. It could be employed for environmental purposes such as destruction of wastes into simple molecules or conversion to synthetic gas.
Proton- and -radiation of the Micro-Pinch with the Boron-Containing Target
Authors: Gurin Anatolii A. , Adamenko Andrii S. , Adamenko Stanislav V. , Kuzmenko Mykola M.
Published: March 2021

Using ion pinhole camera and track detectors, the image of hot spot is recorded in a pulsed diode micro-pinch equipped with a solid anode target. The track image is a record of repeated fronts of fast protons with energies up to 1 MeV. Fluctuations in the ion luminosity of hot spot are associated with the wave-like nature of the proton accelerating processes in the dense plasma of target material, which is characterized by a mean energy of 100 keV. The results of the track analysis of a fast ions, detected in the Thomson analyser in experiments with boron-polyethylene targets, are presented. In 5% of the shots, the presence of ?-particles of energy up to 2 MeV in the flux of fast ions is discovered by means of Thomson analyser equipped with track detectors. Estimations of total amount of helium nuclei as products of nuclear reactions p(B11, 2?) result in an output of 108 ÷ 109 per successive shot.
Pin Hole Discharge Creation in Na2SO4 Water Solutions
Authors: Hlavatá Lucie , Serbanescu Rodica , Hlochová Lenka , Kozáková Zdenka , Krčma František
Published: March 2021

This work deals with the diaphragm discharge generated in water solutions containing Na2SO4 as a supporting electrolyte. The solution conductivity was varied in the range of 270 ÷ 750 µScm-1. The batch plasma reactor with volume of 100 ml was divided into two electrode spaces by the Shapal-MTM ceramics dielectric barrier with a pin-hole (diameter of 0.6 mm). Three variable barrier thicknesses (0.3; 0.7 and 1.5 mm) and non-pulsed DC voltage up to 2 kV were used for the discharge creation. Each of the current–voltage characteristic can be divided into three parts: electrolysis, bubble formation and discharge operation. The experimental results showed that the discharge ignition moment in the pin-hole was significantly dependent on the dielectric diaphragm thickness. Breakdown voltage increases with the increase of the dielectric barrier thickness.
Atmospheric Argon Free burning Arcs with a Simplified Unified Model Using CFD-Arc Modeling
Authors: Lee Won-Ho , Lee Jong-Chul
Published: March 2021

Free burning arcs, where the work piece acts as an anode, are frequently used for a number of applications. Our investigation is exclusively concerned with a simplified unified model of arcs and their electrodes under steady state conditions at atmospheric pressure. The model is used to make predictions of arc and electrode temperatures and arc voltage for a 200 A arc in argon. The computed temperatures along the axis between the cathode tip and the anode surface compare well the measured data.
High-Speed Monitoring of Dust Particles in ITER ELMs Simulation Experiments with QSPA Kh-50
Authors: Makhlaj Vadym A. , Garkusha Igor E. , Aksenov Nikolay N. , Chuvilo Alexander A. , Landman Igor S.
Published: March 2021

Dust generation under powerful plasma stream impacts has been studied in ITER ELM simulation experiments with QSPA Kh-50 plasma accelerator. Repetitive plasma exposures of tungsten have been performed by 0.25 ms plasma pulses and the heat load varied in the range (0.1÷1.1) MJm-2. Main characteristics of dust particles such as a number of ejected particles, their velocity, angular distribution and start time from the surface are investigated. Dust particles have not been observed under heat load below the cracking threshold. Quantity of dust particles rises with increasing heat load. Average velocities of dust particles are found to be strongly dependent on their start time from the surface after beginning of plasma-surface interaction. Maximal velocity achieved a few tens of meters per second.