1,764 research outputs found
Towards the integration of user interface prototyping and model-based development
The main objective of this paper is to make a
contribution in the automation of web applications’ development,
starting from prototypes of their graphical user interfaces.
Due to the exponential increase in the use of internet-based
services and applications, there is an also increasing demand for
Web designers and developers. At the same time, the proliferation
of languages, frameworks and libraries illustrates the current
state of immaturity of web development technologies. This state
of affairs creates difficulties in the development and maintenance
of Web applications.
In this paper, we argue that integrating concepts of modelbased user interface development with the more traditional usercentred design approach to development can provide an answer
to this situation. An approach is presented that allows designers
to use prototyping tools, in this case Adobe XD, to design
graphical interfaces, and then automatically converts them to
(Vue.js + Bootstrap) code, thus creating a first version of the
implementation for further development. This is done through
the interpretation of the SVG file that Adobe XD exports.FCT -Fundação para a Ciência e a Tecnologia(UIDB/50014/2020
A tabular editor for user interfaces modelling
The IVY workbench is a model-based tool for the
automated analysis of interactive systems. Models are written
in a domain specific language, MAL interactors, using a textual
editor. This language has shown to be the main barrier for tool
adoption by inexperienced users. We propose a new editor, which
eases modelling, in order to lower the tool’s learning curve.Trabalho realizado no ambito do projecto “NORTE-01- ˆ
0145-FEDER-000016” financiado pelo Programa Operacional
Regional do Norte (NORTE 2020), PORTUGAL 2020 e Uniao˜
Europeia, atraves do Fundo Europeu para o Desenvolvimento ´
Regional (FEDER).info:eu-repo/semantics/publishedVersio
MODUS: uma metodologia de prototipagem de interfaces baseada em modelos
A interface de utilizador é essencial para o sucesso de uma aplicação, ora a sua implementação requer tempo e esforço. Metodologias baseadas em modelos suportadas por uma geração automática têm sido propostas como solução para reduzir os custos de desenvolvimento. No entanto, um elevado nível de automação nestas abordagens requer o uso de modelos detalhados da interface, originando complicações. Por um lado, esta perspetiva é contrária a uma conceção baseada no progressivo refinamento de mockups, típica do desenvolvimento de interfaces. Por outro lado, obriga uma distinção entre os modelos utilizados na lógica de negócio e na interface. Este artigo propõe uma abordagem para gerar a interface de utilizador baseada diretamente em modelos estruturais da lógica de negócio. A identificação do domínio de aplicação é um factor chave da metodologia, permitindo automatizar o processo de geração. Por sua vez a separação entre conteúdo e forma favorece o refinamento iterativo das interfaces geradas.info:eu-repo/semantics/publishedVersio
MODUS: model-based user interfaces prototyping
Model-based methodologies, supported by automatic generation,
have been proposed as a solution to reduce software
development costs. In the case of interactive computing systems
specific challenges arise. On the one hand, a high level
of automation requires the use of detailed models, which is
contrary to the iterative development process, based on the
progressive refinement of user interface mockups, typical of
user centered development processes. On the other hand, layered
software architectures imply a distinction between the
models used in the business logic and in the user interface,
raising consistency problems between the models at each level.
This article proposes a tool supported approach to user interface
generation directly from the architectural models of the
business logic. In many situations, user interfaces provide
similar features inside a specific domain. The identification of
the application domain is thus a key factor in supporting the
automation of the generation process.This work was financed by the ERDF – European Regional
Development Fund through the Operational Programme for
Competitiveness and Internationalisation - COMPETE 2020
Programme, and by National Funds through the FCT – Fundação
para a Ciência e a Tecnologia (Portuguese Foundation
for Science and Technology) within project POCI-01-0145-
FEDER-006961.info:eu-repo/semantics/publishedVersio
Intelligent cutting-off of pipes and bars
Traditionally, automatic cutting-off machines, of
metallic pipes or bars, use a constant cutting velocity mode.
This mode of operation, constant cutting velocity combined
with different profiles of materials to be cut, exposes the cutting
saw to variable cutting forces. Therefore, the cutting off
machine is usually set for the worst expected conditions, otherwise
excessive wear of the saw and machine will occur. Further,
traditional cutting-off machines require the adjustment of
the position of a limit switch in order to automatically detect
when the cut of a piece has been completed. The aim of this
paper is to study the application of control algorithms to the
process of cutting-off metallic pipes or bars, with variable profiles,
implemented in an industrial cutting-off machine, commercially
available. The presented algorithms concern realtime
cutting control and automatic detection of the cutting end.
The algorithms are implemented in a low cost Programmable
Logic Controller (PLC), allowing its use in industrial applications
without significant increase on machine cost. All algorithms
were developed having in mind safety issues relative to
the operation of the cutting machine in order to prevent catastrophic
failure. Also, all process related relevant parameters
are monitored on a Personal Computer using OPC (Object
Linking and Embedding – for Process Control)
Carcinogenic Ability of Schistosoma Haematobium Possibly through Oncogenic Mutation of KRAS Gene
Schistosoma haematobium is a parasitic flatworm that infects millions of people, mostly in the developing world, and is associated with high incidence of bladder cancer, although why is not clear. Previously, we have used CD-1 mice to show that Schistosoma haematobium total antigen (Sh) has a carcinogenic ability. Sh intravesically instillation induced the development of several urothelial lesions, namely nodular hyperplasia and dysplasia (LGIUN—Low Grade Intra-Urothelial Neoplasia) after 40 weeks of treatment. These results suggested that Sh induce urothelium malignization. Bladder carcinoma frequently harbours gene mutations that constitutively activate the receptor tyrosine kinase-Ras pathway for this reason we studied activating mutations in KRAS gene. Twenty percent of the bladders with dysplasia presented a KRAS mutation in codon 12 of exon 2. We concluded from these results that the parasite extract of S. haematobium has carcinogenic ability possibly through oncogenic mutation of KRAS gene
The indirect effect of body image on distress in women with breast cancer undergoing chemotherapy
BACKGROUND This study assessed the indirect effect of body image in the relationship between illness duration, optimism, coping strategies and psychological distress as well as the moderator role of being or not submitted to surgery and type of surgery, in women with breast cancer undergoing chemotherapy.PARTICIPANTS AND PROCEDURE This cross-sectional study included eighty-seven women with breast cancer undergoing chemotherapy, who answered instruments that assessed sociodemographic and clinical issues, optimism, coping, concerns with body image and psychological distress. Bayesian statistics were performed to test the indirect effect model that included also the moderator effects.RESULTS Lower optimism, lower use of humor, and higher denial and illness duration predicted lower body image and high er distress. Longer illness duration was associated with higher distress. Body image had an indirect effect in the relationship between optimism and distress; between denial coping and distress; between humor coping and distress and between illness duration and distress. Being submitted to surgery but not the type of surgery was a moderator in the indirect effect model.CONCLUSIONS Body image is critical to psychological distress. Future interventions for women with breast cancer should consider body image as a target, in order to promote adaptive coping strategies specially when women have had surgery
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