11,403 research outputs found
Using genomic signature to detect cases of coevolution in viral/host systems - the Poxviridae family.
ISCB-Latin America 2014. Pôster D15
Avaliação dos efeitos de um protocolo com a plataforma NINTENDO WII® nas dimensões cognitivas e físicas /equilíbrio e coordenação) em idosos
Objetivos: Avaliar e quantificar o impacto do tratamento de fisioterapia, utilizando exclusivamente a
Nintendo Wii®, na Qualidade de Vida relacionada com a saúde dos sujeitos com 65 anos ou mais e as
mudanças na cognição, equilíbrio, coordenação e desempenho das Atividades da Vida Diária após o
protocolo; Inquirir o grau de adesão ao treino.
Material e Métodos: 30 sujeitos em dois momentos de avaliação. Medidas aplicadas: SF-12, MSE,
TUG e com tarefa cognitiva, Escala de Equilíbrio de Berg, avaliação da coordenação e Escala de Barthel.
Intervenção durante 4 semanas, 2 por semana, 60 minutos, em 8 sessões.
Resultados: Ganhos em todas as escalas, com significado estatístico na Escala de Saúde Mental
Geral, componente do SF-12 (p=0,008), MMSE (p=0,007), TUG normal (p=0,003), TUG com tarefa
cognitiva (p=0,028) e Protocolo de Avaliação da Coordenação proposto por O’Neil et al. (p=0,008). Da
amostra 46,67% teve um Baixo Grau de Adesão, 30% Médio Grau de Adesão, e 23,33% Alto Grau de
Adesão.
Conclusões: Um protocolo de intervenção de 4 semanas com a Nintendo Wii Sports® (bowling) em
sujeitos institucionalizados, apresenta benefícios na QV relacionada com a Saúde Metal e de cognição, e
dimensão física da coordenação e capacidade para a dupla-tarefa
Wearable devices for health remote monitor system
It is feasible to see how communication and information technology have advanced at a rapid pace in today’s world. The introduction of wearable technology is one aspect contributing to this progress and has the potential to be an innovative solution to healthcare challenges since it may be utilized for illness prevention and maintenance, such as physical monitoring, as well as patient management. In order to solve some of the healthcare challenges, this paper proposes the development of an intelligent health monitoring system with alerts and continuous monitoring using wearable devices capable of collecting biometric data on human health. The concept was then proven by the development of a prototype using sensors connected to a micro-controller which transmits its information via MQTT to a Node-RED powered dashboard that handles the health metrics monitoring. The designed prototype has proven satisfactory to provide evidences that support the developed research questions.info:eu-repo/semantics/acceptedVersio
Entropy production and Kullback-Leibler divergence between stationary trajectories of discrete systems
The irreversibility of a stationary time series can be quantified using the
Kullback-Leibler divergence (KLD) between the probability to observe the series
and the probability to observe the time-reversed series. Moreover, this KLD is
a tool to estimate entropy production from stationary trajectories since it
gives a lower bound to the entropy production of the physical process
generating the series. In this paper we introduce analytical and numerical
techniques to estimate the KLD between time series generated by several
stochastic dynamics with a finite number of states. We examine the accuracy of
our estimators for a specific example, a discrete flashing ratchet, and
investigate how close is the KLD to the entropy production depending on the
number of degrees of freedom of the system that are sampled in the
trajectories.Comment: 14 pages, 7 figure
Exact solution for a fermion in the background of a scalar inversely linear potential
The problem of a fermion subject to a general scalar potential in a
two-dimensional world is mapped into a Sturm-Liouville problem for nonzero
eigenenergies. The searching for possible bounded solutions is done in the
circumstance of power-law potentials. The normalizable zero-eigenmode solutions
are also searched. For the specific case of an inversely linear potential,
which gives rise to an effective Kratzer potential, exact bounded solutions are
found in closed form. The behaviour of the upper and lower components of the
Dirac spinor is discussed in detail and some unusual results are revealed.Comment: 13 pages, 6 figure
The colored Jones function is q-holonomic
A function of several variables is called holonomic if, roughly speaking, it
is determined from finitely many of its values via finitely many linear
recursion relations with polynomial coefficients. Zeilberger was the first to
notice that the abstract notion of holonomicity can be applied to verify, in a
systematic and computerized way, combinatorial identities among special
functions. Using a general state sum definition of the colored Jones function
of a link in 3-space, we prove from first principles that the colored Jones
function is a multisum of a q-proper-hypergeometric function, and thus it is
q-holonomic. We demonstrate our results by computer calculations.Comment: Published by Geometry and Topology at
http://www.maths.warwick.ac.uk/gt/GTVol9/paper29.abs.htm
Realizing Discontinuous Wave Functions with Renormalized Short-Range Potentials
It is shown that a potential consisting of three Dirac's delta functions on
the line with disappearing distances can give rise to the discontinuity in wave
functions with the proper renormalization of the delta function strength. This
can be used as a building block, along with the usual Dirac's delta, to
construct the most general three-parameter family of point interactions, which
allow both discontinuity and asymmetry of the wave function, as the zero-size
limit of self-adjoint local operators in one-dimensional quantum mechanics.
Experimental realization of the Neumann boundary is discussed.
KEYWORDS: point interaction, self-adjoint extension, potential,
wave function discontinuity, Neumann boundary
PACS Nos: 3.65.-w, 11.10.Gh, 68.65+gComment: 4 pages, ReVTeX double column format with an epsf figure, expanded
reference
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