An ensemble framework for time delay synchronisation

Synchronisation theory is based on a method that tries to synchronise a model with the true evolution of a system via the observations. In practice, an extra term is added to the model equations that hampers growth of instabilities transversal to the synchronisation manifold. Therefore, there is a very close connection between synchronisation and data assimilation. Recently, synchronisation with time delayed observations has been proposed, in which observations at future times are used to help synchronise a system that does not synchronise using only present observations, with remarkable successes. Unfortunately, these schemes are limited to small-dimensional problems. In this paper, we lift that restriction by proposing ensemble-based synchronisation scheme. Tests were performed using Lorenz96 model for 20, 100 and 1000-dimension systems. Results show global synchronisation errors stabilising at values of at least an order of magnitude lower than the observation errors, suggesting that the scheme is a promising tool to steer model states to the truth. While this framework is not a complete data assimilation method, we develop this methodology as a potential choice for a proposal density in a more comprehensive data assimilation method, like a fully nonlinear particle filter

application of lean methodologies

Poster presentationHealthcare acquired infections (HAI) are an important cause of morbidity and mortality. Hand hygiene (HH) is one of the most effective measures for preventing HAI. However, stirring healthcare workers to comply with HH remains a challenge. Two common barriers often found are forgetfulness and the lack of time. We hypothesize that the perception of lack of time and forgetfulness stems from the pressure of too much tasks in a short period of time. Therefore, it is rational to search for efficiency and minimize waste. This study aims at exploring the use of LEAN methodologies to improve nurses’ work processes in an ICU ward. A design science research approach was used. A questionnaire was applied to the nurses followed by an observational study of an 8-hour work shift to identify nurses’ activities, processes of care, and to describe HH compliance. Next, a value stream map (VSM) was designed and the analysis performed with the nurses, which helped to identify points of possible improvement in the process of care. After this, weekly LEAN workshops were held with the objective of improving workflow efficiency. From the initial observational study, we found that a nurse may take on average 16% of their work time using the information system, and the overall rate of HH was 63%. The full compliance to HH would amount to 13% of a nurse’s workload. Three processes were identified as the most relevant HH compliance drivers: the reorganization of essential supplies, the optimal provision of medicines and monitoring equipment automatic data collection. The participant nurses defined as objectives to reduce the supplies’ delivering time and establish a stock management system. To achieve it the reorganization of the storage with the ABC method, with the nurses deciding the layout of the storage space, was essential. The use of LEAN methods permitted to detect and address improvement opportunities with significant benefits. Moreover, nurses’ participation in the process enriched the experience, helping to design a customized intervention and heightened their sense of teamwork.publishersversionpublishe

Uso de bordaduras e tamanho de parcelas experimentais de batata doce.

Os objetivos deste trabalho são avaliar a necessidade de utilização de bordaduaras em experimentos com batata doce e definir o tamanho das parcelas experimentais em pesquisas com esta hortaliça.CD-ROM. Suplemento. Trabalho apresentado no 51. Congresso Brasileiro de Olericultura, Viçosa, MG

Influência do peso de rizomas-semente na produção de açafrão.

O objetivo deste trabalho foi avaliar o efeito sobre a produção, do uso da classificação por peso dos rizomas-semente, de três acessos de açafrão, nas condições de Manaus, AM

Danos do gorgulho do solo, Pantomorus sp. (Coleoptera: curculionidae), no feijoeiro no cerrado.

O objetivo deste trabalho foi estudar alguns aspectos comportamentais e quantificar os danos de Pantomorus sp. em raízes do feijoeiro.bitstream/CNPAF/18762/1/pqfoco53.pd

Virtual environments to cope with anxiety situations: Two case-studies

Anxiety is a growing problem in modern societies. Virtual reality has been widely adopted to treat anxiety and more severe psychological problems. We have been working on an approach that involves compelling virtual environments (VE) to treat anxiety. These VE recreate a particular situation and support in real-time the intervention of the therapist. Public domain software tools and a simple projection screen have been used. This paper describes two interactive applications that simulate VE to help people coping with particular anxiety situations. One of the applications is developed in Blender and is dedicated to the fear of talking in front of an audience; the other application is developed in OpenSim and is devoted to the fear of driving inside a tunnel.info:eu-repo/semantics/acceptedVersio

Orientação básica para o controle da mosca-dos-chifres "Haematobia irritans".

De origem européia, a Haematobia irritans existe nos Estados Unidos há mais de cem anos, onde causa prejuízos econômicos e sanitários. A mosca já foi detectada também na Austrália, em países africanos, no Canadá e na América do Sul, na Colômbia, Venezuela, Equador e Chile.bitstream/item/55712/1/it09-2000.pd

Controle da verminose em terneiros desmamados com 60 e 90 dias de idade.

Atualmente, vem sendo preconizado o desmame precoce de terneiros de gado de corte com 60 a 90 dias de idade, cujo objetivo principal é de elevar os índices de repetição de cria das vacas.bitstream/item/63444/1/it12-2001.pd