Low-code development and model-driven engineering: Two sides of the same coin?

The last few years have witnessed a significant growth of so-called low-code development platforms (LCDPs) both in gaining traction on the market and attracting interest from academia. LCDPs are advertised as visual development platforms, typically running on the cloud, reducing the need for manual coding and also targeting non-professional programmers. Since LCDPs share many of the goals and features of model-driven engineering approaches, it is a common point of debate whether low-code is just a new buzzword for model-driven technologies, or whether the two terms refer to genuinely distinct approaches. To contribute to this discussion, in this expert-voice paper, we compare and contrast low-code and model-driven approaches, identifying their differences and commonalities, analysing their strong and weak points, and proposing directions for cross-pollination.

Weak convergence theorems for symmetric generalized hybrid mappings and equilibrium problems

<p style='text-indent:20px;'>In this paper, we introduce three new iterative methods for finding a common point of the set of fixed points of a symmetric generalized hybrid mapping and the set of solutions of an equilibrium problem in a real Hilbert space. Each method can be considered as an combination of Ishikawa's process with the proximal point algorithm, the extragradient algorithm with or without linesearch. Under certain conditions on parameters, the iteration sequences generated by the proposed methods are proved to be weakly convergent to a solution of the problem. These results extend the previous results given in the literature. A numerical example is also provided to illustrate the proposed algorithms.</p>

Vida e morte em Fechner e Freud

As concepções de vida e morte de Freud e de Fechner se entrelaçam no momento em que o primeiro, em Além do princípio do prazer (1920), aclimata ao seu arcabouço teórico o princípio fechneriano da tendência à estabilidade, tomado a partir de então como um princípio mais geral ao qual se subordina o princípio da constância (ou princípio do Nirvana). O princípio de Fechner, contudo, é destacado por Freud de uma obra publicada em 1873, onde seu autor o formula como um princípio físico que se insere em uma concepção geral sobre a vida — sobre a sua origem e o seu desenvolvimento, mas também o seu ocaso —, concepção que difere sobremaneira da visão científica usual, à qual Freud se filia. No entanto, a visão sobre a vida e a morte dos dois autores conflui a partir do ponto em comum representado pelo princípio da tendência à estabilidade, que, em Fechner, leva os organismos progressivamente ao estado inorgânico e, em Freud, parece poder ser entendido como o fundamento da pulsão de morte, que naturalmente se esforça por alcançar este mesmo fim.Palavras-Chave: Freud. Fechner. Vida. Morte. Life and death in Fechner and FreudABSTRACTFreud's and Fechner's conceptions of life and death are intertwined when the former, in Beyond the Pleasure Principle (1920), acclimatizes to his theoretical framework the Fechnerian principle of the tendency to stability, taken from then on as a more general principle to which the constancy principle (or Nirvana principle) is subordinated. Fechner's principle, however, is highlighted by Freud from a work published in 1873, where its author formulates it as a physical principle that fits into a general conception of life — about its origin and its development, but also the its sunset — a conception that differs greatly from the usual scientific view, to which Freud adheres. However, the vision of life and death of the two authors converges from the common point represented by the principle of the tendency to stability, which, in Fechner, leads organisms progressively to an inorganic state and, in Freud, seems to be understood as the foundation of the death drive, which naturally strives to achieve this very end.Keywords: Freud. Fechner. Life. Death.

Drum Groove Corpora

Patterned microtiming deviations from metronomic regularity are ubiquitous in the performance of metered music. The relevance of microtiming to the perception of music has been studied since the 1980s. Most recently, microtiming has been investigated as a cause of groove (i.e., the pleasant urge to move in response to music). The study of microtiming relies on the availability of microtiming data. This report presents three large corpora of onset timings derived from drum kit performances in popular Anglo-American popular music styles. These data are made freely available (CC 4.0 license) to provide a resource for use by analysts and experimenters alike. They offer a common point of reference for future studies into the temporal facets of music performance. The datasets adhere to FAIR principles; they thus facilitate replication of analyses and experimental stimuli.

Issue of the boundaries between good and evil in theological-moral discourse

Hardly any problem in contemporary theological-moral discourse causes such turbulence as the searching, reflection, and demarcation of the boundaries between good and evil in human acting. A fundamental problem is a criterion or a reference point according to which a person could reliably determine what is good and evil. Divergent theological views in the theological-moral dimension seem to have caused the clear boundaries between good and evil to disappear. Therefore, the crucial question is whether there is still a universal criterion for theological evaluation of a human act, as the situation in theological-moral discourse resembles an areopagus of opinions that have no common point in distinguishing between good and evil. This reflection examines the possibility if the Thomistic ethical analysis of a human act, together with the principle of double effect, may be a reference point for the demarcation of these boundaries.

An Official Outbreak Investigation of Acute Haemorrhagic Diarrhoea in Dogs in Norway Points to Providencia alcalifaciens as a Likely Cause

An outbreak investigation was initiated in September 2019, following a notification to the Norwegian Food Safety Authority (NFSA) of an unusually high number of dogs with acute haemorrhagic diarrhoea (AHD) in Oslo. Diagnostic testing by reporting veterinarians had not detected a cause. The official investigation sought to identify a possible common cause, the extent of the outbreak and prevent spread. Epidemiological data were collected through a survey to veterinarians and interviews with dog owners. Diagnostic investigations included necropsies and microbiological, parasitological and toxicological analysis of faecal samples and food. In total, 511 dogs with acute haemorrhagic diarrhoea were registered between 1 August and 1 October. Results indicated a common point source for affected dogs, but were inconclusive with regard to common exposures. A notable finding was that 134 of 325 faecal samples (41%) cultured positive for Providencia alcalifaciens. Whole genome sequencing (WGS) of 75 P. alcalifaciens isolates from 73 dogs revealed that strains from 51 dogs belonged to the same WGS clone. Findings point to P. alcalifaciens as implicated in the outbreak, but investigations are needed to reveal the pathogenic potential of P. alcalifaciens in dogs and its epidemiology.

Active Methodologies in Teaching Human Anatomy

Human anatomy is one of the fundamental disciplines for the training of health professionals, especially in the medical field. Its didactic origin is based on the European school where the body was dissected in amphitheaters and anatomical knowledge was transmitted from the teacher to his students. With the restructuring of medical curricula, and the use of active methodologies, seeking to make the student the center of the learning process, anatomy started to be taught in another way. This study carries out an integrative review in the Scielo, Science Direct and Google Scholar databases, from 2015 to 2020, about the active methodologies used in the teaching of human anatomy for the medical course. The PICo strategy was used to form the guiding question and the results were presented through the Prisma Flow diagram. It was found that there are a number of tools and strategies that can be used aiming at the active teaching of human anatomy, however, a common point observed in most works is the approach of joint use with cadavers and anatomical parts, thus seeking to stimulate the development of the skills and competences of medical students.

The Impact of strategic Agility on the SMEs competitive capabilities in the Kingdom of Bahrain

With a highly uncertain and changing business environment, the typical way of planning a business is not particularly useful in different organizations worldwide. The current literature explores the concept of strategic Agility based on the idea of flexible planning and implementation and can pivot direction at the time of crises. Three main theories underpinning these concepts are contingency-based theory, resource-based theory, and Dynamic capability theory. These theories have one common point of view: enterprises' ability to cope with unexpected changes, survive unprecedented threats from the business environment, and take advantage of changes as opportunities. The literature has identified various variables that impact the adoption of strategic Agility in the organization, including strategic sensitivity, Resource fluidity, and Leadership unity. Some studies in the literature have found these variables as dimensions of strategic Agility. Further, the literature discussed how competitiveness could be achieved through strategic Agility at times of crisis, particularly in SMEs, which are highly prone to external problems due to limited resources and budgets.

Eckhoff's Problem on Convex Sets in the Plane

Eckhoff proposed a combinatorial version of the classical Hadwiger–Debrunner $(p,q)$-problems as follows. Let ${\cal F}$ be a finite family of convex sets in the plane and let $m\geqslant 1$ be an integer. If among every ${m+2\choose 2}$ members of ${\cal F}$ all but at most $m-1$ members have a common point, then there is a common point for all but at most $m-1$ members of ${\cal F}$. The claim is an extension of Helly's theorem ($m=1$). The case $m=2$ was verified by Nadler and by Perles. Here we show that Eckhoff 's conjecture follows from an old conjecture due to Szemerédi and Petruska concerning $3$-uniform hypergraphs. This conjecture is still open in general; its solution for a few special cases answers Eckhoff's problem for $m=3,4$. A new proof for the case $m=2$ is also presented.

O folheto de política na literatura de cordel: a peleja da querela com o esclarecimento na classificação temática

O presente artigo se localiza no campo da folkcomunicação, em um ponto comum da literatura, do jornalismo e da política. Oferece uma proposta de classificação temática para o folheto de política da literatura de cordel, a partir da análise de conteúdo de narrativas poéticas de caráter informativo-opinativo elaboradas sobre fatos e temas da história e do cotidiano, e denominadas “de acontecidos” entre outros termos. Discute dados de uma revisão bibliográfica sobre a diversidade temática da literatura de cordel, com ênfase nos folhetos de política, e questiona querelas que envolvem a efetividade metodológica de diferentes modelos de classificação. Folkcomunicação; Literatura de cordel; Jornalismo; Política; Classificação temática. This article is located in the field of folkcommunication, in a common point of literature, journalism and politics. It offers a thematic classification proposal for the cordel literature politic leaflet, based on the content analysis of poetic narratives of an informative-opinionated character elaborated on facts and themes of history and daily life, and called “de acontecidos” among other terms . Discusses data from a bibliographic review on the thematic diversity of cordel literature, with an emphasis on political leaflets, and questions quarrels that involve the methodological effectiveness of different classification models. Folkcommunication; Cordel literature; Journalism; Politics; Thematic classification. Este artículo se ubica en el campo de la comunicación popular, en un punto común de la literatura, el periodismo y la política. Ofrece una propuesta de clasificación temática para el folleto de política de literatura cordel, basadas en el análisis de contenido de narrativas poéticas de carácter informativo-opinativo elaboradas sobre hechos y temas de la historia y de la vida cotidiana, denominadas “de acontecidos” entre otros términos. Analiza datos de una revisión bibliográfica sobre la diversidad temática de la literatura cordel, con énfasis en folletos de políticas, y cuestiona disputas que involucran la efectividad metodológica de diferentes modelos de clasificación. Comunicación popular; Literatura de folleto; Periodismo; Política; Clasificación temática.