Remote health monitoring system for the elderly based on mobile computing and IoT

Due to the increasing technological innovation over the last decades, the average life expectancy of a human being has been increasing exponentially. Although this is an excellent step forward for humanity, it has led older population to being more prone to illness, making them more vulnerable to accidents such as falls. In this article a study is made on the existing literature in non-intrusive remote health monitoring systems, towards the design and implementation of an IoT system capable of identifying fall situations and monitor cardiac data. A Systematic Literature Review (SLR) method was considered in this work, focused on reviewing the existing literature on remote health monitoring systems, having fall detection algorithms, based in IoT. The Design Science Research (DSR) methodology was used to seek to enhance technology and science knowledge about this paper's topic, through the creation of an innovative artifact.The system includes a smart watch (Lily-Go T-Watch-2020 V2), programmable in C under Arduino IDE to detect falls and a photoplethysmography monitoring unit (PPG) based on a Onyx 9560 Bluetooth oximeter, capable of measuring the user's blood oxygen percentage (SpO2) and heart rate, in real time. It also provides remote monitoring through a user-friendly website to visualize live data about the status of the user. The system was tested in volunteers to show the effectiveness of remote health monitoring systems for the elderly population.info:eu-repo/semantics/acceptedVersio

Doses de NPK, produção de massa seca e nutrição em feijão-de-metro.

Este trabalho objetivou estudar os teores de nutrientes na folha e a produção de massa seca da parte aérea do feijão-de-metro submetido a diferentes doses de NPK (4-14-8), em um solo representativo de terra firme, visando gerar subsídios úteis para seu manejo

Produção e qualidade de frutos de cultivares de melancia em ecossistema de "terra firme" do Estado do Amazonas.

Neste trabalho, avaliaram-se diferentes cultivares de melancia e dois espaçamentos, para a produção de melancia na terra firme do Amazonas. O ensaio foi conduzido na Embrapa Amazônia Ocidental, Iranduba-AM, em Argissolo Amarelo distrófico, textura média, de junho a agosto de 2010

Anisotropic superconducting properties of aligned MgB2 crystallites

Samples of aligned MgB2 crystallites have been prepared, allowing for the first time the direct identification of an upper critical field anisotropy Hc2^{ab}/Hc2^{c}= xi_{ab}/xi_{c} ~ 1.73; with xi_{o,ab} ~ 70 A, xi_{o,c} ~ 40 A, and a mass anisotropy ratio m_{ab}/m_{c} ~ 0.3. A ferromagnetic background signal was identified, possibly related to the raw materials purity.Comment: 4 pages, 4 figures; Revised version to appear in Phys. Rev. Let

Altura e suprimento de nitrogênio afetando a Plutella xylostella na couve-de-folhas sob cobertura plástica.

O objetivo desse trabalho foi estudar a influência da altura e do forneciento de N sobre o ataque dessa traça em plantas de couve (cv. hi-crop) cultivadas em vasos, dentro de cultivo dessa brassicácea sob cobertura plástica.Edição dos Resumos do 52º Congresso Brasileiro de Olericultura, Salvador, jul. 2012

Late-Time Tails of Wave Propagation in Higher Dimensional Spacetimes

We study the late-time tails appearing in the propagation of massless fields (scalar, electromagnetic and gravitational) in the vicinities of a D-dimensional Schwarzschild black hole. We find that at late times the fields always exhibit a power-law falloff, but the power-law is highly sensitive to the dimensionality of the spacetime. Accordingly, for odd D>3 we find that the field behaves as t^[-(2l+D-2)] at late times, where l is the angular index determining the angular dependence of the field. This behavior is entirely due to D being odd, it does not depend on the presence of a black hole in the spacetime. Indeed this tails is already present in the flat space Green's function. On the other hand, for even D>4 the field decays as t^[-(2l+3D-8)], and this time there is no contribution from the flat background. This power-law is entirely due to the presence of the black hole. The D=4 case is special and exhibits, as is well known, the t^[-(2l+3)] behavior. In the extra dimensional scenario for our Universe, our results are strictly correct if the extra dimensions are infinite, but also give a good description of the late time behaviour of any field if the large extra dimensions are large enough.Comment: 6 pages, 3 figures, RevTeX4. Version to appear in Rapid Communications of Physical Review

Decoherence induced by a phase-damping reservoir

A phase damping reservoir composed by $N$-bosons coupled to a system of interest through a cross-Kerr interaction is proposed and its effects on quantum superpo sitions are investigated. By means of analytical calculations we show that: i-) the reservoir induces a Gaussian decay of quantum coherences, and ii-) the inher ent incommensurate character of the spectral distribution yields irreversibility . A state-independent decoherence time and a master equation are both derived an alytically. These results, which have been extended for the thermodynamic limit, show that nondissipative decoherence can be suitably contemplated within the EI D approach. Finally, it is shown that the same mechanism yielding decoherence ar e also responsible for inducing dynamical disentanglement.Comment: 8 pages, 3 figure

Danos por Plutella xylostella em couve-de-folhas jovem afetados pela altura e nitrogênio.

O objetivo deste trabalho foi estudar a influência da altura e do fornecimento de N sobre o ataque dessa traça em plantas jovens de couve (cv. Hi-Crop) crescendo em vasos, dentro de um cultivo comercial dessa brássica sob cobertura plástica.bitstream/item/125085/1/BP-16-A5.pd

Patógenos associados a hortaliças em cultivos hidropônicos no Estado do Ceará.

bitstream/CNPAT-2010/11837/1/cot-140.pd

Mancha foliar em batata-doce causada por Bipolaris sp.

Sintomas. Reação das cultivares.bitstream/CPAA-2009-09/9288/1/IT_10_2000.pd