bluuebunny/crossref_metadata_2025 huggingface dataset:
WHAT DRIVES CHINA’S LONG-TERM ECONOMIC GROWTH TREND? A RE-MEASUREMENT BASED ON A TIME-VARYING MIXED-FREQUENCY DYNAMIC FACTOR MODEL
Authors: Liu Dayu , Xu Bin , Song Yang , Wang Qiaoru
Published: April 2023

The unprecedented downward pressure of China’s economic growth trend raises several questions, including what the current level of China’s long-term economic growth trend is, and what drives and how to inhibit the downward trend. Therefore, we develop a time-varying mixedfrequency dynamic factor model using data with different start dates to measure the trend, and perform a real-time decomposition of changes in the trend. We find that the trend has entered a downward stage since 2007, left a high-speed phase since 2012, and stepped in an accelerated downward stage since 2018. The current level of the trend is about 4%. However, the lower limit of the 90% confidence interval is below 2%, which is lower than natural rate level. Additionally, decelerated capital deepening, diminishing demographic dividend and technological recession all drive the downward trend. Compared to the relatively weak push-down effects of capital deepening and demographic dividend that are less than two percentage points, the downward trend is mainly driven by technological recession. Given that technological progress is unlikely to improve significantly in the short run, mitigating the mismatch between technological progress and obsolete capital, revitalizing existing capital stock, and increasing the efficiency of technology utilization become more feasible means.
Detection of Cosmological 21 cm Emission with the Canadian Hydrogen Intensity Mapping Experiment
Authors:   The CHIME Collaboration, Amiri Mandana , Bandura Kevin , Chen Tianyue , Deng Meiling , Dobbs Matt , Fandino Mateus , Foreman Simon , Halpern Mark , Hill Alex S. , Hinshaw Gary , Höfer Carolin , Kania Joseph , Landecker T. L. , MacEachern Joshua , Masui Kiyoshi , Mena-Parra Juan , Milutinovic Nikola , Mirhosseini Arash , Newburgh Laura , Ordog Anna , Pen Ue-Li , Pinsonneault-Marotte Tristan , Polzin Ava , Reda Alex , Renard Andre , Shaw J. Richard , Siegel Seth R. , Singh Saurabh , Vanderlinde Keith , Wang Haochen , Wiebe Donald V. , Wulf Dallas
Published: April 2023

We present a detection of 21 cm emission from large-scale structure (LSS) between redshift 0.78 and 1.43 made with the Canadian Hydrogen Intensity Mapping Experiment. Radio observations acquired over 102 nights are used to construct maps that are foreground filtered and stacked on the angular and spectral locations of luminous red galaxies (LRGs), emission-line galaxies (ELGs), and quasars (QSOs) from the eBOSS clustering catalogs. We find decisive evidence for a detection when stacking on all three tracers of LSS, with the logarithm of the Bayes factor equal to 18.9 (LRG), 10.8 (ELG), and 56.3 (QSO). An alternative frequentist interpretation, based on the likelihood ratio test, yields a detection significance of 7.1σ (LRG), 5.7σ (ELG), and 11.1σ (QSO). These are the first 21 cm intensity mapping measurements made with an interferometer. We constrain the effective clustering amplitude of neutral hydrogen (H i), defined as



H

I

≡

10

3

Ω

H

I

b

H

I

+
〈

f

μ

2

〉

, where ΩH i
is the cosmic abundance of H i, b
H i
is the linear bias of H i, and 〈f
μ
2〉 = 0.552 encodes the effect of redshift-space distortions at linear order. We find



H

I

=

1.51

−
0.97

+
3.60

for LRGs (z = 0.84),



H

I

=

6.76

−
3.79

+
9.04

for ELGs (z = 0.96), and



H

I

=

1.68

−
0.67

+
1.10

for QSOs (z = 1.20), with constraints limited by modeling uncertainties at nonlinear scales. We are also sensitive to bias in the spectroscopic redshifts of each tracer, and we find a nonzero bias Δ v = − 66 ± 20 km s−1 for the QSOs. We split the QSO catalog into three redshift bins and have a decisive detection in each, with the upper bin at z = 1.30 producing the highest-redshift 21 cm intensity mapping measurement thus far.
Cooling Rates of Chondrules after Lightning Discharge in Solid-rich Environments
Authors: Kaneko Hiroaki , Sato Kento , Ikeda Chihiro , Nakamoto Taishi
Published: April 2023

Among the several candidate models for chondrule formation, the lighting model has been recognized to be less likely than the other two major models, shock-wave heating and planetesimal collision. It might be because we have believed that the lightning model predicts cooling rates of chondrules that are too fast to reproduce their textures with the assumption that the discharge channels must be optically thin. However, the previous works revealed that the buildup of a strong electric field to generate the lightning in protoplanetary disks requires the enhancement of the solid density. Moreover, some properties of chondrules indicate their formation in environments with such a high solid density. Therefore, the discharge channels may be optically thick, and the lightning model can potentially predict the proper cooling rates of chondrules. In this study, we reinvestigate the cooling rates of chondrules produced by the lightning in the solid-rich environments considering the radiative transfer and the expansion of the hot channel. Chondrules must interact dynamically with the surrounding gas and dust via the drag force. We consider two limiting cases for the dynamics of chondrules: the drag force is ignored in the first case, and chondrules are completely coupled with their surroundings in the second case. In both cases, the lightning model predicts the proper cooling rates of chondrules under the optically thick conditions with high solid enhancement. Therefore, the lightning model is worth further investigation to judge its reliability as the source of chondrule formation.
On Encounter Rates in Star Clusters
Authors: Rawiraswattana Krisada , Goodwin Simon P.
Published: April 2023

Close encounters between stars in star-forming regions are important as they can perturb or destroy protoplanetary disks, young planetary systems, and multiple-star systems. We simulate simple, virialized, equal-mass N-body star clusters and find that both the rate and the total number of encounters between stars vary by factors of several in statistically identical clusters due to the stochastic/chaotic details of the orbits and stellar dynamics. Encounters tend to “saturate” rapidly in the core of a cluster, with stars there each having many encounters, while more distant stars have none. However, we find that the fraction of stars that has had at least one encounter within a particular distance grows in the same way (scaling with the crossing time and half-mass radius) in all clusters, and we present a new (empirical) way of estimating the fraction of stars that has had at least one encounter at a particular distance.
Axion-mediated Transport of Fast Radio Bursts Originating in Inner Magnetospheres of Magnetars
Authors: Prabhu Anirudh
Published: April 2023

Among magnetar models of fast radio bursts (FRBs), there is ongoing debate about whether the site of coherent radio emission lies within or beyond the light cylinder. We propose a mechanism by which FRBs produced near the magnetar surface are transported out of the magnetosphere by axions, which are hypothetical particles that couple to photons. If the emission site hosts strong accelerating electric fields, a considerable fraction of the FRB energy budget is converted to an axion burst. Once produced, the axion burst free streams out of the magnetosphere due to the rapidly decreasing magnetic field. The burst may escape through either the open or closed magnetosphere while retaining the temporal signature of the original FRB. In the wind region, axions resonantly excite ordinary (O) modes that escape as the plasma density decreases. The radio efficiency of this mechanism satisfies energetics constraints from FRB 121102 for axion−photon coupling strengths that have not been excluded by other astrophysical probes.
L’exception tchèque ?
Authors: Rupnik Jacques
Published: April 2023

Dans un contexte marqué par la guerre en Ukraine et une situation économique difficile, la victoire de Pavel sur Babis permet à la République tchèque d’éviter la dérive populiste de ses voisins.
Changer de régime
Authors: Makaremi Chowra , Chalier Jonathan
Published: April 2023

Après la révolution de 1979, la société iranienne a oscillé entre l’obéissance et l’adhésion, marquée par les figures du martyr et de l’ennemi intérieur. Mais les mouvements féministes ont défait la figure du sujet-électeur, jusqu’à produire, à l’automne 2022, un nouveau sujet révolutionnaire.
Une nouvelle subjectivité féminine en Iran
Authors: Khosrokhavar Farhad
Published: April 2023

Les jeunes générations, notamment de femmes, rejettent un régime théocratique macabre au nom de la joie de vivre et de la liberté.
Avatars de la comédie médicale
Authors: Suzzoni Cécilia
Published: April 2023

Le rire de la satire accable une confrérie médicale plus soucieuse de faire triompher ses intérêts que la santé de ses patients. Dans la Recherche , Cottard est ainsi une promesse comique indéfiniment renouvelée. Cette comédie médicale entend nous dédouaner de la peur de la mort, mais témoigne surtout d’une résistance de la vie.
Existe-t-il une clinique psychanalytique ?
Authors: Askofaré Sidi
Published: April 2023

D’évidence, le syntagme de « clinique psychanalytique » s’est imposé dans la littérature psychanalytique. Or, il est loin d’être indifférent de parler de La clinique psychanalytique ou d’ une clinique, au risque de confondre la pratique psychanalytique, l’expérience psychanalytique ou ladite « clinique psychanalytique ». Par ailleurs, que l’on parle de « clinique freudienne », de « clinique kleinienne » ou de « clinique lacanienne » ou autres, indique suffisamment le lien, pas toujours pensé, entre « observation clinique », « construction de cas cliniques », doctrine ou théorie, et souci de transmission et de formation. D’où la question que le présent article souhaite prendre en charge : existe-t-il une clinique psychanalytique ?
« Que sont nos amours devenues ? » Psychanalyse et Institution : liaison-déliaison ?
Authors: Boudin Isabelle
Published: April 2023

Les institutions sont des formations du champ social, résultantes du nouage des quatre discours élaborés par Lacan, comme modalité de lecture du lien social. La clinique psychanalytique : « Elle a une base – C’est ce qu’on dit dans une psychanalyse 2  » nous dit Lacan. A priori , il existe une antinomie radicale entre la psychanalyse et ce que représente le monde institutionnel, lui-même à l’épreuve de différentes cliniques. Néanmoins, une liaison entre ces deux entités a existé, la psychanalyse avait fait sa place en institution, place qu’aujourd’hui elle a perdue, peut-être, ou est en train de perdre. Alors comment et pourquoi recréer du lien ? L’enjeu est politique et éthique, afin de maintenir la place de la psychanalyse dans tous les lieux où la clinique du sujet se présente… La psychanalyse sans divan.
Qu’est-ce qu’une « psychose lacanienne » ?
Authors: Mosconi Muriel
Published: April 2023

Le vendredi 13 février 1976, lors de la discussion de sa présentation clinique de Gérard L., Lacan pose le diagnostic de « psychose lacanienne » et il développe ce point dans son séminaire Le sinthome du mardi suivant, le 17 février 1976. Il pose à nouveau ce diagnostic lors de sa présentation clinique du vendredi 5 novembre 1976. De quoi s’agit-il ?
Le mathématisable de la clinique
Authors: Soler Colette
Published: April 2023

Au-delà de l’effet de langage a-historique qui s’impose à tous et que les mathèmes de la structure inscrivent, ce texte pose la question de savoir si, comme la science le fait pour la matière à la fois inanimée et pour celle animée de vie de la biologique, si donc, l’autre vie, celle des appétences diverses des sujets, de leurs passions, de leurs désirs et jouissances, qui exclue le déterminisme, relève elle aussi de possibles mathèmes.
Clinique psychanalytique et enseignement : faire avec l’impossible
Authors: Pérez Pierre
Published: April 2023

Cet article interroge l’impossible qui préside à tout enseignement de la clinique psychanalytique.
Quand la varité nous parle…
Authors: Gorog Françoise
Published: April 2023

La présence et l’insistance obstinée de Lacan de même que sa proximité chaleureuse lors de ses présentations de malade offre un visage souvent méconnu du praticien de la psychanalyse et de ce que ledit psychotique lui a enseigné et peut nous enseigner.
Le prince Eugène de Savoie : un grand chef militaire européen, fruit d’une royale erreur de jugement
Authors: Vinet Guy
Published: April 2023

Le prince Eugène de Savoie (1663-1736) fait partie de cette grande aristocratie militaire servant les princes européens sur les champs de bataille. Ses succès basés sur la mobilité et l’exemplarité en firent une des grandes références pour Napoléon, au même titre qu’un Alexandre ou un César.
« Mais je veux que ça vienne de lui »
Authors: Beylot Étienne
Published: April 2023

Au nom d’une conception inclusive, qui vise à décentrer le regard des classifications stigmatisantes, l’activité artistique auprès d’enfants dits handicapés mentaux a largement été mise en avant. Elle donnerait l’occasion de stimuler des potentialités insoupçonnées, car elle respecterait la singularité de chacun en s’attachant à libérer leur « créativité » plutôt que de conformer des individus à partir d’un programme conçu pour les êtres « moyens ». Seulement la notion de « créativité », sous-tendue par l’idéal normatif de l’autonomie, nous invite à interroger sa traduction pratique face à des enfants précisément placés en IME pour leur « manque » d’autonomie. À partir d’une étude ethnographique, l’article rappelle la diversité des perceptions attenantes à la pratique artistique, et montre qu’elle n’est pas centrée « naturellement » sur le développement « créatif » de l’enfant. En soulignant les dimensions normatives divergentes engagées par les dispositifs pédagogiques que nous prenons soin de décrire, nous analyserons les difficultés et les paradoxes qu’ils soulèvent. Si la question du « niveau » ne disparaît jamais totalement, indépendamment des « choix » pédagogiques réalisés, c’est aussi parce que l’appel à la créativité de l’enfant lui intime implicitement de mobiliser certaines compétences, et d’exprimer sa singularité dans le sens voulu par l’activité.
Pénuries de médicaments : quelles conditions à l’adaptation de collectifs de professionnels au sein d’entreprises pharmaceutiques ?
Authors: Gibert Julie
Published: April 2023

Notre enquête qualitative, menée en France auprès de professionnels de différentes entreprises pharmaceutiques, a permis de décrire les conditions à l’adaptation de collectifs aux risques de pénuries de médicaments. L’approvisionnement en médicaments procède de systèmes d’actions complexes, aux équilibres fragiles et incertains. Dans un contexte de ressources économiques limitées, comment des individus, aux représentations et valeurs plurielles, s’accordent-ils sur des actions communes tout en conservant leur part d’autonomie ? On postule qu’une éthique de la relation est primordiale. Elle préside à la transformation nécessaire d’un collectif, observé en situations de crise, grâce à un processus de coopération à l’origine de solutions créatives. Ces solutions permettent de s’adapter ensemble aux problématiques rencontrées pour garantir aux patients la disponibilité en médicaments.
Les patients partenaires dans des recherches en santé : les enjeux éthiques et épistémologiques à prendre en compte pour concevoir une collaboration fructueuse
Authors: Bogaert Brenda
Published: April 2023

Préconisée au nom de la démocratie sanitaire, l’implication des patients partenaires dans les projets de recherche est considérée de plus en plus comme étant une bonne pratique, voire relevant d’une obligation éthique. Toutefois, pour le moment, les patients partenaires continuent d’occuper une place incertaine et on accuse souvent leur participation d’être seulement symbolique. Dans cette contribution, nous chercherons à élaborer les enjeux éthiques et épistémologiques de cette collaboration et les conditions qu’il faut mettre en œuvre pour parvenir à une association fructueuse. Nous nous attacherons en particulier à trois points. Nous examinerons d’abord l’accusation selon laquelle l’implication d’un patient dans le processus de recherche peut porter atteinte à la liberté académique, à la fois en raison d’un conflit d’interprétation entre les patients et les scientifiques, mais aussi en raison des liens et des conflits d’intérêts éventuels du patient. Nous élaborerons ensuite le problème de la représentativité, à savoir si des patients individuels peuvent être représentatifs d’une plus large population de patients et ce que cela peut impliquer pour la qualité d’une étude. Dans ce débat, nous nous demanderons si la rémunération des patients partenaires peut atténuer ce problème. Enfin, nous analyserons les situations dans lesquelles une participation peut être préjudiciable pour la personne impliquée et si tel est le cas, ce que nous pouvons faire pour y remédier.
Spécificités de la démarche d’éthique appliquée dans une commission d’espace éthique régional
Authors: Einaudi Marie-Ange , Marcucci Laetitia
Published: April 2023

Les espaces de réflexion éthique régionaux ont vocation à favoriser la réflexion éthique dans les pratiques soignantes, susciter et coordonner les initiatives éthiques. Les commissions de réflexion éthique y participent en leur sein. De composition pluriprofessionnelle et pluridisciplinaire, elles encouragent et facilitent débat, confrontation des opinions et rencontres. L’objectif de l’article est de présenter une démarche d’éthique appliquée déployée par la commission « prévention-protection de l’enfance » de l’espace de réflexion éthique régional paca -Corse à partir d’une situation de violences conjugales en temps de pandémie. Il ne s’agit pas d’une situation type, construite artificiellement, mais au contraire d’une situation vécue, ce qui fait tout son intérêt. Les échanges animés entre les membres de la commission témoignent quant à eux d’une réflexion éthique incarnée, ancrée dans la réalité du terrain. L’étude du récit a permis d’explorer des tensions faisant écho à l’actualité sanitaire, sociale, juridique et politique. Dans le contexte de la prise en charge des vulnérabilités médico-psychosociales, la question des limites entre prévention, précaution et protection est particulièrement délicate. En outre, la place des tiers et le juste positionnement des soignants, à l’écoute des besoins des patients, ont mobilisé notre attention. Leurs expériences éthiques enrichissent notre compréhension de la complexité de ces situations, traversées par des enjeux de société. Dans le contexte d’une commission éthique dans un espace de réflexion éthique régional, la discussion peut alors déboucher sur un questionnement plus large visant à les éclairer.
Energy decay of solution for nonlinear delayed transmission problem
Authors: Moumen Abdelkader , Beniani Abderrahmane , Alraqad Tariq , Saber Hicham , Ali Ekram. E. , Bouhali Keltoum , Zennir Khaled
Published: April 2023

In this work, we consider a nonlinear transmission problem in the bounded domain with a delay term in the first equation. Under conditions on the weight of the damping and the weight of the delay, we prove general stability estimates by introducing a suitable Lyapunov functional and using the properties of convex functions.
Combinative distance-based assessment method for decision-making with $ 2 $-tuple linguistic $ q $-rung picture fuzzy sets
Authors: Khan Ayesha , Ahmad Uzma , Farooq Adeel , Ali Al-Shamiri Mohammed M.
Published: April 2023

Multi-criteria group decision-making (MCGDM) approaches have a substantial effect on decision-making in a range of critical sectors, including science, business, and real-life research. These strategies also efficiently assist researchers in resolving challenges that may arise throughout their study activity. The current work's major purpose is to research and develop the combinative distance-based assessment (CODAS) approach by employing $ 2 $-tuple linguistic $ q $-rung picture fuzzy sets ($ 2 $TL$ q $-RPFSs) as a background. The CODAS technique computes the distances from the negative ideal solutions and ranks the alternatives in increasing order. To compute the normal weights of attributes, the entropy weighting information process is used. Furthermore, two aggregation operators, namely the $ 2 $-tuple linguistic $ q $-rung picture fuzzy Einstein weighted average and the $ 2 $-tuple linguistic $ q $-rung picture fuzzy Einstein order weighted average, are introduced. Our inspiration for employing the notion of $ 2 $TL$ q $-RPFSs is the ability of $ q $-RPFSs to support a wide range of information and the significant qualities of $ 2 $-tuple linguistic term sets to handle qualitative data. Congested transportation networks may be made more efficient by leveraging digital transformation. Real-time traffic management is one solution to the problem of road congestion. As a result of connected autonomous vehicle (CAV) advances, the benefits of real-time traffic management systems have grown dramatically. CAVs can help manage traffic by acting as enforcers. To complement the extended approach, the proposed technique is used to select the best alternative for a real-time traffic management system. The performance of the suggested technique is validated using scenario analysis. The results show that the suggested strategy is efficient and relevant to real-world situations.
Regularity of weak solutions to a class of fourth order parabolic variational inequality problems arising from swap option pricing
Authors: Feng Yuejiao
Published: April 2023

This article concerns the regularity of weak solutions for a variational inequality problem constructed by a fourth-order parabolic operator which has received much attention recently. We first consider the internal regular estimate of weak solutions using the difference type test function. Then, the near edge regularity and global regularity of weak solutions are analyzed by using the finite cover principle. Since the quadratic gradient of the weak solution does not satisfy the conditions for a test function, we have constructed a test function using a spatial difference operator to complete the proof of regularity. The results show that the weak solution has a second order regularity and an $ {L^\infty }(0, T;{H^2}(\Omega)) $ estimation independent of the lower order norm of the weak one.
Phlomis lychnitis (Lamiaceae), una adición a la flora de África desde Marruecos
Authors: Homrani Bakali Abdelmonaim , Chatelain Cyrille
Published: April 2023

Phlomis lychnitis se registra por primera vez en el continente africano. Hasta el momento, sólo se conoce de Marruecos en el Alto Atlas Oriental. Se proporciona una descripción de la especie, así como los primeros datos sobre su ecología en Marruecos junto con su distribución geográfica y caracteres diagnósticos con la especie morfológicamente más cercana que comparte flores de color amarillo. También se proporcionan fotografías y una clave actualizada de las especies de Phlomis en Marruecos.
Development of Magnesium/Calcium Oxalate Cements
Authors: Bilginer Baki Aykut , Erdoğan Sinan Turhan
Published: April 2023

Magnesium oxalate cement, a novel alternative to portland cement, can be made at room temperature by reacting dead-burned magnesia and salts of oxalic acid. Since oxalic acid can be made using captured carbon dioxide, oxalate cements may even be carbon negative. However, emissions related with the decarbonation of magnesite at high temperatures make this hard to achieve. This study investigates the effect of replacing magnesia with granulated blast furnace slag on some physical and mechanical properties, as well as the mineralogy and microstructure of oxalate cements. Whewellite and Weddellite are identified when slag is used, in addition to Glushinskite which forms from magnesia. Slag-only mortars undergo faster but less complete reactions and show lower resistance to water than their magnesium oxalate counterparts. An equal-part combination of dead-burned magnesia and slag gives the highest 28-d strength (> 35 MPa), pH~7, and high water resistance.
Jotacê e o Centro Integrado Orixás Center: afrobrasilidade em destaque na década de 1970
Authors: Silva Anderson Marinho da
Published: April 2023

A partir de três painéis representando orixás, pretendemos investigar como os discursos sobre arte afro-brasileira, na década de 1970, motivaram a especulação, inclusive imobiliária, acerca das questões de raça, fazendo com que alguns artistas enveredassem pelos temas ligados ao Candomblé. Como estudo de caso analisaremos os painéis de autoria do escultor baiano Jotacê, que desenvolveu, no final da década de 1970 e início de 1980, vários murais em madeira com temas relacionados ao Candomblé para uma grande construtora no centro de Salvador. Limitaremos nossa análise aos 03 painéis desenvolvidos para o Centro integrado Orixás Center, no bairro do Politeama.
Revolver a terra, revoltar as narrativas: Uma aproximação à performance Axexê da Negra ou o descanso das mulheres que mereciam serem amadas de Renata Felinto
Authors: Delfim Joyce
Published: April 2023

Neste artigo, proponho-me a uma aproximação à performance Axexê da Negra ou o descanso das mulheres que mereciam serem amadas, de Renata Felinto. Trabalho e localizo a performance conceitualmente, interpretando-a através de registros fotográficos e de um relato do público, na companhia das leituras de Grada Kilomba, Michel-Rolph Trouillot e Walter Benjamin. Em seguida, elaboro um mergulho histórico sobre os retratos de mulheres negras amas-de-leite, realizados no século XIX, a partir dos estudos de Sandra Koutsoukos. Por fim, estabeleço relações entre a performance e outras produções artísticas contemporâneas que atravessam o tema das experiências de maternidades, bem como abordo o lugar da arte na subversão e revolta de arquivos e narrativas no entrelace do presente com o passado, e vice-versa.
Ribeirias: encruzilhadas afro-indígenas nas artes visuais produzida nas cidades de Petrolina e Juazeiro no Submédio São Francisco
Authors: Silva André Vitor Brandão da
Published: April 2023

Neste artigo, investigamos como a produção artística no "Submédio São Francisco" articula aspectos culturais, epistemológicos e simbólicos afro-indígenas que remontam à constituição identitária da região. Para tal, analisamos a obra “Água Doce também se revolta”, de Luiz Marcelo, desenvolvida em virtude da realização da Mostra Flutuante de Artes Visuais nas cidades de Petrolina, Pernambuco, e Juazeiro, Bahia. O projeto dessa Mostra reflete junto aos artistas sobre a necessidade de construção de práticas criativas e expositivas decoloniais que se direcionem para a desarticulação do pensamento colonialista dominante. Intentamos para o fato de que a articulação de aspectos afro-indígenas na obra analisada faz parte da estratégia de visibilização das identidades da região, trazendo para a discussão o processo violento de colonização deste território.
Onde estão os brancos?: sobre a emergência de pensarmos a branquitude na arte brasileira
Authors: Oliveira Rafael Dantas de
Published: April 2023

O presente artigo expõe os resultados iniciais da pesquisa de dissertação que desenvolvo. Tem como objetivo evidenciar a emergência de pensarmos a branquitude na arte brasileira (CARDOSO, 2020; SCHUCMAN, 2020; SIMÕES, 2019), a partir de uma análise historiográfica e conceitual das discussões sobre raça e arte de Nina Rodrigues (1904), Mariano Carneiro da Cunha (1983) e Roberto Conduru (2009). Tendo como base o conceito de “imagem em negativo” de Liv Sovik (2017), proponho olharmos como branco-tema as produções teóricas e artísticas elaboradas por sujeitos brancos – entendimento similar ao utilizado por Guerreiro Ramos (1995). Por fim, destaco os principais teóricos que se têm proposto a analisar a branquitude na arte, como Igor Simões (2019, 2021).
Uma visita à exposição “Um Brasil para Brasileiros – Carolina Maria de Jesus”
Authors: Pinheiro Bruno
Published: April 2023

Entre 25 de setembro de 2021 e 27 de março de 2022, esteve em cartaz no Instituto Moreira Salles de São Paulo (IMS-SP) a exposição “Um Brasil para Brasileiros – Carolina Maria de Jesus”, com curadoria de Hélio Menezes e Raquel Barreto, e assistência de Luciara Ribeiro. Nessa exposição, a vida da escritora foi narrada a partir de quatro vozes que se entrelaçavam a cada sala: a da própria escritora, em excertos selecionados do manuscrito “Um Brasil para Brasileiros”, texto que foi ponto de partida para a pesquisa; documentos históricos que contavam sua trajetória; obras de arte de pouco mais de 60 artistas; e os textos curatoriais, que costuravam uma leitura crítica ao longo da mostra.
Um rito de passagem de longa duração : Entrevista com Ana Beatriz Almeida
Authors: Dindo Emerson
Published: April 2023

Nesta entrevista, Emerson Dindo conversa com a curadora e artista Ana Beatriz Akpedje de Almeida sobre seus processos criativos, sua pesquisa junto a grupos sociais e práticas culturais em países africanos, como o Benin, e na Bahia, especialmente na cidade de Cachoeira. Nas conexões de linguagens artísticas e cultos religiosos entre o continente africano e a diáspora, a artista aponta referências estéticas e formas históricas de elaboração da morte.
Educational Technology and the Pre-K-12 Environment
Authors: Grimes Neil
Published: April 2023

Educational technology has accelerated in recent years, and it has had a profound impact on current teaching and learning in the Pre-K-12 environment. In future years, advancement and innovation in technology will continue to empower teachers to customize students' learning experiences. To accomplish this, teachers will need ongoing professional development, which includes engaging in learning activities associated with technology play theory that focuses on educational technology and technology integration involving the technology integration planning cycle. This article will discuss the impact of content neutral technologies on pre-K-12 grade levels and content areas, the use of educational technologies used in remote instruction during the COVID-19 pandemic, the use of TPACK, the importance of creating a sense of belonging in the online learning environment, the need for teachers to pursue micro-credentials related to digital learning, and the impact that virtual reality, augmented reality, the metaverse and artificial intelligence can have on teachers, administrators, and students.
An Approach With Iterative and Incremental Development (IID) for Mobile Applications
Authors: Ndrecaj Jona , Berisha Shkurte , Çunaku Erita
Published: April 2023

There are several studies on the software development life cycle (SDLC) and various approaches that can be utilized in planning and designing a software project. The contemporary norm for the software development process across industries is to build products using iterative or incremental design. Iterative and incremental development (IID) is useful for different types of software. The authors have provided a literature review of the current definitions of iterative and incremental design, and also discuss the most common pitfalls for each approach. The authors also analysed which approach is better for different stages of the development of mobile applications. At the end of this research, it was concluded that the iterative approach is the best approach for front-end development, while the incremental approach is a better fit for back-end development. Finally, the authors provided an analysis of utilizing IID for applications in the banking sector.
Uses of Mobile Apps for Youth in Education Purposes
Authors: Totaj Yllka
Published: April 2023

People nowadays use their phones constantly throughout the day, for a variety of reasons. It seems reasonable that they may be used for educational purposes as well. The process of education has become much easier with mobile applications. Through these mobile apps, students can access all kinds of books and information. They can save a lot of time without the need to go to the library to acquire it. Thanks to these mobile apps, classes and lectures are not confined to physical classrooms only. Students no longer have to wait until class to ask questions; instead, they may get in touch with their professors whenever the need appears. When schools were closed and lessons were done online during Covid-19, mobile applications were also incredibly helpful.
An Approach for Mobile Application Design Using Figma
Authors: Jain Akshat
Published: April 2023

With the increased mobile usage throughout the world, there is an enormous demand for mobile applications that provide not only good functionality but also good experience to the user, which is why it is important to have a good user interface for a mobile application. In this chapter, various components of an app are designed and illustrated in Figma software to make the work easier for a developer to create them. It also demonstrates the usage of Fig-ma. Meanwhile it shows the design thinking behind adding the correct colour schemes, right font, using proper white space, proper placement of buttons, and other design principles.
Android Applications for Lung Nodules Classification Using Convolutional Neural Network
Authors: M. P. Karthikeyan , C. V. Banupriya , R. Kowsalya , A. Jayalakshmi
Published: April 2023

Digital image processing is currently used in various fields of research. One of them is in the field of medicine. In fact, experienced radiologists have difficulty distinguishing the cancerous portions of the blood vessels in the lung or detecting fine nodules that suggest lung cancer on X-ray images. Previous studies have shown that doctors and radiologists fail to detect cancerous patches in 30% of positive cases. Implementation of CAD system to classify and detect parts of cancer has been developed, but the results obtained from this implementation are that there are still many errors in the classification results. Therefore, this study will develop android app image technique to perform the classification process of lung cancer. With this research, it is hoped that the developed algorithm can help doctors and radiologists to detect cancer in a short time with more accuracy. Finally, after 20 iterations, a percentage of 90.65% was attained for the test results' performance in classifying 10 X-ray pictures.
Machine Learning-Based Mobile Applications Using Python and Scikit-Learn
Authors: Rajamani Santhosh Kumar , Iyer Radha Srinivasan
Published: April 2023

This chapter gives a broad outline of machine learning on Android mobile phones using the Scikit-learn module. The first section introduces the reader to Python language; next, Python on Android is introduced with a brief historical note on implementations of Python on Android mobile phones. Pydroid3 is introduced in the subsequent section. This is followed by instructions on setting up an Android phone for machine learning. This is followed by a description of supportive modules for machine learning that are available for Pydroid3, and some example codes, namely: os, pathlib, Pandas, NumPy, SciPy, Matplotlib, Seaborn, PySimpleGUI, NetworkX, Biopython, WordCloud, Kivy, and Jupyter Notebook. The last section of this compilation describes the Scikit-learn library, basic concepts of the Scikit-learn module, and algorithms available with this module, namely: Linear Regression, Logistic Regression, Principal Component Analysis (PCA), XGBoost, K-nearest neighbors, and support vector machine.
Epidemiology, potential risk factors and outcome of black fungus during COVID-19 pandemic: a concurrent prospective study at a dedicated COVID-19 hospital of North India
Authors: Kumar Mithilesh , Saini Shipra , Parashar Lokesh , Sasidharan Jaseetha , Goyal Pooja , Dhir Ratan Prakash
Published: April 2023

Introduction: As the number of COVID-19 patients increased during second wave, a steep rise of patients with mucormycosis was found in all parts of India.
Objectives: To determine the epidemiological factors leading to the rise in fungal infection in patients during COVID-19 pandemic as well as describe the outcome of the disease during next three months after being discharged from the hospital
Methods: It was a concurrent prospective study conducted between 26 June to 25 October 2021 at ESIC Medical College & Hospital, Faridabad, India. Patients positive for mucormycosis and agreed for the study were enrolled. They were interviewed telephonically after recording their consent.
Results: A total of 51 patients were interviewed during our study period. During the follow-up, six patients died within three months of discharge from the hospital. The mean age of patients was 49.6years (SD=6.9 years), with the majority in the age group of 41-60 years. Most (53%) of the patients were males and 30(58.8%) were graduates and above. In the sample, 33 had a recent history of COVID-19 infection, 24 (47%) had been prescribed steroids, 16 (31.3%) had been prescribed oxygen during COVID-19 infection and 33(64.7%) were diabetic. The relationship of potential risk factors with the type of mucormycosis was not found to be statistically significant. Out of the45 patients who survived, 35 were better, three were still on oral anti-fungal treatment and seven patients required reconstructive plastic surgery. A significant association was found between patients who had a history of steroid intake and type of mucormycosis.
Conclusions & Recommendations: Patients admitted to hospital with mucormycosis during the COVID-19 surge mostly had a history of COVID-19 infection, suffering from diabetes or on steroids. Most of the patients survived due to treatment availability (antifungal medicines, surgery or both) and about 15% of them had undergone long debridement surgery leading to severe loss of normal contour of the face and waiting for plastic reconstructive surgery.
Hypertension clinical care in the era of coronavirus disease 2019
Authors: TIWASKAR MANGESH , KOREGOL PRABHAKAR C , KRISHNAN HARI HARA , AGARWAL DINESH , HASAN OMER , ABHYANKAR MAHESH , REVANKAR SANTOSH , KUMAR NEERAJ
Published: April 2023

Objective:

The objective of this study was to seek the opinion of Indian health-care professionals (HCPs) about hypertension (HTN) care during coronavirus disease 2019 (COVID-19) era.

Methods:

HCPs' opinions (n = 2832) were recorded based on survey and round table meetings. Standard questionnaire consisting of nine questions pertaining to HTN care in COVID-19 was prepared, discussed, and evaluated by experts who treat patients with HTN during COVID-19 era.

Results:

Smoking/tobacco use, obesity, and comorbidities (diabetes/dyslipidemia) were ranked as the top three modifiable risk factors. A total of 37% and 33% of HCPs reported an increase in blood pressure (BP) during the lockdown period in 10%–20% and 20%–40% of hypertensive patients, respectively, who were on monotherapy. Around 35% of HCPs reported that 20%–30% of their patients with HTN showed uncontrolled BP (>150/100 mmHg). Dual-drug therapy in patients with uncontrolled BP was preferred by 56% of HCPs. Nearly 71% preferred dual combination for HTN management. In dual combination, 27% preferred angiotensin receptor blockers (ARBs) + diuretic, 26% preferred ARB + calcium channel blockers, and 18% preferred ARB + beta-blockers. The majority of HCPs (44%) consider that <30% of their patients with HTN check BP at home. A total of 47% of HCPs reported acute coronary syndrome as the most common HTN-related complication. The majority of HCPs (57%) considered that avoiding contamination during BP measurement is the challenging parameter. Around 32% considered self-BP monitoring (SBPM) as the best method to improve medication adherence.

Conclusion:

SBPM, combination therapies, and digital connect with patients are critical aspects of HTN management during COVID-19 pandemic.
Association of Hearing Health with Traffic Accidents among Heavy Vehicle Drivers
Authors: Mohammadiyan Mahdi , Mehri Farzaneh , Fasih-Ramandi Fatemeh , Karimi Ali , Karami Esmaeil
Published: April 2023

Aim:

Excessive exposure of drivers to traffic noise and the resulting hearing loss could affect safe driving. This study aimed to investigate the hearing status of heavy vehicle drivers and its correlation with traffic accidents.

Materials and Methods:

This cross-sectional study was conducted on 187 drivers of heavy vehicles (trucks and buses) in Tehran province during 2018. The hearing status of drivers was investigated by the audiometric test method, ISO 6189 (1983). A safety questionnaire and checklist of drivers' demographic variables were used to gather information on accident status and personal characteristics of drivers. SPSS version 24 software was used for the statistical analysis of data. The statistical tests used are Chi-square, Spearman's correlation, paired t-test, and odds ratio.

Results:

Examining the hearing status of drivers showed that 51.5% were normal and 48.5% of drivers had hearing loss. The highest mean hearing threshold was at a frequency of 4000 Hz. The mean (standard deviation) for the right and left ears was 27.82 ± 15.92 and 18 ± 27.32 dB, respectively. The results of the analysis on drivers' hearing status and accidents showed a significant correlation between the frequency of accidents and the classification of drivers' hearing loss. Thus, a significant relationship with the correlation coefficient of 0.123 and 0.307, respectively, was obtained between the average hearing loss of drivers and having one or five accidents.

Conclusion:

The findings of the study showed hearing loss in drivers in the left ear, especially at high frequencies. There is also a significant relationship between the number of accidents and the rate of hearing loss of drivers. Hearing loss caused by noise interferes with activities such as driving and negatively affects the safety of drivers and emphasizes the importance of preventing accidents by controlling traffic noise.
Isolation, Characterization, and Evaluation of Protease Activity of Crude Bromelain of Pineapple Peel, Core, and Crown from Subang District, Indonesia
Authors: Saptarini Nyi Mekar , Mustarichie Resmi , Rahayu Driyanti
Published: April 2023

Context:

Bromelain is distributed to all parts of pineapple (Ananas comusus (L.) Merr), including the peel, core, and crown, which are agricultural waste that has not been utilized properly.

Aims:

The purpose of this study was to determine the character and protease activity of crude bromelain from the Indonesian pineapple peel, core, and crown. The pineapple was collected from Subang district, West Java Province, Indonesia.

Methods and Material:

The three crude bromelains were obtained through the precipitation process with ethanol, then a protein qualitative and quantitative analysis was performed. Protease activity was determined by measuring the tyrosine produced from casein hydrolysis. The characters of crude bromelains were determined by evaluating the protease activity in various pH, temperature, and substrate concentration.

Statistical Analysis Used:

One-way analysis of variance was conducted to analyze the data statistically.

Results:

The three crude bromelains can be isolated from the peel, core, and crown of pineapple fruit with protease activity in the range of 38.32-46.78 units. Crude bromelains have an optimum temperature of 55°C for the peel and core and 35°C for the crown. All crude bromelains have an optimum pH of pH 7. The three crude bromelains have Vmax in the range of 140.85 to 285.71 units and KM in the range of 15298.59 to 18370.86 ppm.

Conclusions:

It concluded that the three crude bromelains have protease activity with the specific character and kinetic parameter.
Duality and bicrystals on infinite binary matrices
Authors: Gerber Thomas , Lecouvey Cédric
Published: April 2023

The set of finite binary matrices of a given size is known to carry a finite type

A

bicrystal structure. We first review this classical construction, explain how it yields a short proof of the equality between Kostka polynomials and one-dimensional sums together with a natural generalisation of the

2M-X

Pitman transform. Next, we show that, once the relevant formalism on families of infinite binary matrices is introduced, this is a particular case of a much more general phenomenon. Each such family of matrices is proved to be endowed with Kac–Moody bicrystal and tricrystal structures defined from the classical root systems. Moreover, we give an explicit decomposition of these multicrystals, reminiscent of the decomposition of characters yielding the Cauchy identities.
Wheel graph homology classes via Lie graph homology
Authors: Ward Benjamin
Published: April 2023

We give a new proof of the non-triviality of wheel graph homology classes using higher operations on Lie graph homology and a derived version of Koszul duality for modular operads.
Modeling Electric Motors with High Fidelity for Accurate eDrive NVH Simulation
Authors: Nie Walter Z. , Chandrasekhar Nurani , Wu Wei
Published: April 2023

A sophisticated finite element analysis (FEA) method for modeling interior permanent magnet (IPM) electric motors is presented. Based on this method, a coupled structural-acoustic analysis procedure was developed to simulate the motor dyno vibroacoustic responses with improved accuracy and reliability for NVH (noise, vibration, and harshness) behavior prediction over a wide range of torques and frequencies under the operational electromagnetic forces. The proposed motor modeling and analysis method is detail-oriented with high fidelity in modeling the structure and complex material representation. To effectively deal with the motor stator core constructed with large numbers of electromagnetic laminae, the unit-cell approach was employed to derive the core material properties by homogenizing the laminated core as an equivalent orthotropic material. Meanwhile, the windings were modeled by capturing the precise geometry for accuracy improvement. Additionally, the method facilitates modeling the varnish fill details between the core, linings, and the windings, such as bonded locations, area coverage, and fill rate. Guidelines pertinent to FEA modeling of motor components related to element type selection, mesh size determination, acoustic domain definition, and structure-acoustic interface connection are also provided. The stator analysis model was first correlated with the free-free modes and frequency response functions (FRF) obtained from the vibrometer test before being incorporated into the motor dyno system to simulate the radiated noise for critical motor whine orders and other NVH-related behavior. Finally, the simulated results were verified against motor dyno test data over a wide range of torque and frequency. This high-fidelity motor model can further be used for advanced studies in objectively assessing the influence of airgap eccentricity, rotor skew configuration, stator attachment architecture, etc., on motor NVH behavior.