Influência dos cancros ginecológicos e de mama no ajustamento conjugal

Tese de mestrado integrado em Psicologia (Psicologia Clínica e da Saúde - Núcleo de Saúde e Doença), apresentada à Universidade de Lisboa através da Faculdade de Psicologia e de Ciências da Educação, 2008Nesta investigação pretende-se avaliar a influência dos cancros ginecológicos ou de mama no nível de ajustamento conjugal, através da percepção retrospectiva da mulher. A visão prospectiva da mulher acerca do ajustamento marital também é objectivo deste estudo. Desta amostra fizeram parte 17 mulheres com cancro ginecológico ou de mama. Estas encontravam-se em período de internamento depois da cirurgia. Foi aplicada às participantes uma tradução da Revisão da Escala de Ajustamento Diádico (Busby, Christensen, Crane & Larson, 1995) duas vezes, a primeira baseada na fase até o conhecimento do diagnóstico, e a segunda referente ao período desde o conhecimento do diagnóstico até ao pós-cirurgico. Por último, realizou-se uma entrevista semiestruturada, que visava explorar as diferenças nas respostas da Escala nos dois momentos, o apoio do companheiro na doença e a percepção futura do nível de ajustamento conjugal. Os resultados mostraram que existe um aumento no nível de ajustamento marital na fase posterior ao diagnóstico. Ainda que algumas participantes tenham afirmado a inexistência de alterações na vida conjugal depois do diagnóstico, outras manifestaram a implementação de mudanças positivas, como a aproximação do casal. Estas percepções levam a que o futuro do casal não seja uma preocupação para estas mulheres, que reconhecem a importância do apoio do marido neste processo. Apesar das dificuldades com que estes casais se deparam ao longo desta vivência, estas mulheres reconhecem a existência de aspectos positivos que decorrem da mesma.The aim of the present study is to assess the influence of gynaecologic and breast cancer on the marital adjustment level, through a woman’s retrospective perception. The woman’s prospective perception is an additional aim of this study. Data was collected on 17 women with gynaecologic and breast cancer. These women were hospitalised, after the surgery. The participants answered a Portuguese translation of the Revised Dyadic Adjustment Scale (RDAS; Busby, Christensen, Crane, & Larson, 1995). This scale was applied twice, the first application was carried out in the period before diagnosis, and the second application took place during the phase since diagnosis knowledge up to the moment after surgery. Finally, a semi-structured interview was conducted to explore the different responses of these two moments assessed by the scale, as well as the husband’s support through the illness and the woman’s future perception of the adjustment marital level. The results indicate that there is an increase in the marital adjustment level in the post-diagnosis phase. Although some participants affirmed that there were no changes in conjugal life after diagnosis, others revealed positive changes like an increase in the couple’s closeness. These perceptions imply that these women are not concerned with the future status of their relationship and that they recognise their husband’s support through this process. In spite of the difficulties encountered by these couples living through the process of this disease, these women are able to recognise the positive outcomes that are derived from it

Maximum Entropy Principle and the Higgs Boson Mass

A successful connection between Higgs boson decays and the Maximum Entropy Principle is presented. Based on the information theory inference approach we determine the Higgs boson mass as $M_H= 125.04\pm 0.25$ GeV, a value fully compatible to the LHC measurement. This is straightforwardly obtained by taking the Higgs boson branching ratios as the target probability distributions of the inference, without any extra assumptions beyond the Standard Model. Yet, the principle can be a powerful tool in the construction of any model affecting the Higgs sector. We give, as an example, the case where the Higgs boson has an extra invisible decay channel. Our findings suggest that a system of Higgs bosons undergoing a collective decay to Standard Model particles is among the most fundamental ones where the Maximum Entropy Principle applies.Comment: Version published in Physica

Inferences on the Higgs Boson and Axion Masses through a Maximum Entropy Principle

The Maximum Entropy Principle (MEP) is a method that can be used to infer the value of an unknown quantity in a set of probability functions. In this work we review two applications of MEP: one giving a precise inference of the Higgs boson mass value; and the other one allowing to infer the mass of the axion. In particular, for the axion we assume that it has a decay channel into pairs of neutrinos, in addition to the decay into two photons. The Shannon entropy associated to an initial ensemble of axions decaying into photons and neutrinos is then built for maximization.Comment: Contributed to the 13th Patras Workshop on Axions, WIMPs and WISPs, Thessaloniki, May 15 to 19, 201

Fungicide application technology for controlling the sugarcane orange rust

With the epidemic onset of the sugarcane orange rust, fungicide applications of the Strobilurins and Triazoles groups have become necessary in susceptible varieties. This study aimed at evaluating the operational conditions of fungicide application in sugarcane (SP81-3250 variety), in relation to the spray deposition on the upper canopy and the effectiveness of the orange rust control. Treatments consisted of two application volumes (30 L ha-1 or 40 L ha-1) and three nozzle deflection angles (0 º, 90 º or 135 º), plus a ground application at the rate of 200 L ha-1, sprayed with a uniform flat spray nozzle of air induction. The ground application resulted in the smallest and the greatest spray deposition on sugarcane leaves and on the soil, respectively. The aerial application at the rate of 30 L ha-1, sprayed by hollow cone nozzles, at a deflection angle of 135 º, provided the best sugarcane orange rust control. Tecnologia de aplicação de fungicidas no controle da ferrugem alaranjada da cana-de-açúcar -- Com o surgimento epidêmico da ferrugem alaranjada da cana-de-açúcar, aplicações de fungicidas dos grupos químicos Estrobilurinas e Triazóis tornaram-se necessárias para as variedades suscetíveis. Objetivou-se avaliar as condições operacionais de aplicação de fungicidas em cana-de-açúcar (variedade SP81-3250), no que se refere à deposição de calda no dossel superior e à efetividade do controle da ferrugem alaranjada. Os tratamentos consistiram de dois volumes de aplicação (30 L ha-1 ou 40 L ha-1) e três ângulos de deflexão das pontas (0 º, 90 º ou 135 º), além de uma aplicação terrestre à taxa de 200 L ha-1, pulverizada por meio de pontas de jato plano uniforme de indução de ar. A aplicação terrestre resultou na menor e maior deposição nas folhas de cana-de-açúcar e no solo, respectivamente. A aplicação aérea com taxa de 30 L ha-1, pulverizada por pontas de jato cônico vazio, com ângulo de deflexão de 135 º, proporcionou o melhor controle da ferrugem alaranjada da cana-de-açúcar

Inorganic Graphenylene: A Porous Two-Dimensional Material With Tunable Band Gap

By means of ab initio calculations we investigate the possibility of existence of a boron nitride (BN) porous two-dimensional nanosheet which is geometrically similar to the carbon allotrope known as biphenylene carbon. The proposed structure, which we called Inorganic Graphenylene (IGP), is formed spontaneously after selective dehydrogenation of the porous Boron Nitride (BN) structure proposed by Ding et al. We study the structural and electronic properties of both porous BN and IGP and it is shown that, by selective substitution of B and N atoms with carbon atoms in these structures, the band gap can be significantly reduced, changing their behavior from insulators to semiconductors, thus opening the possibility of band gap engineering for this class of two-dimensional materials

Looking for a break in Spanish Inflation Data in the early eighties and assessing persistence

Using the Bai-Perron test, we look for a shift in the conditional mean of an AR representation of Spanish CPI inflation over the period: 1978-2006. It is clear that Spain, as most OECD economies, experienced an inflation slowdown in the early eithgties, which can be related to some policy measures undertook by the government coming out of the 1982 elections. It is shown, that when the break is accounted for, there are no signs of persistence in Spanish CPI inflation.inflation persistence; structural breaks; monetary policy

Silver Hardening via Hypersonic Impacts

The search for new ultra strong materials has been a very active research area. With relation to metals, a successful way to improve their strength is by the creation of a gradient of nanograins (GNG) inside the material. Recently, R. Thevamaran et al. [Science v354, 312-316 (2016)] propose a single step method based on high velocity impact of silver nanocubes to produce high-quality GNG. This method consists of producing high impact collisions of silver cubes at hypersonic velocity (~400 m/s) against a rigid wall. Although they observed an improvement in the mechanical properties of the silver after the impact, the GNG creation and the strengthening mechanism at nanoscale remain unclear. In order to gain further insights about these mechanisms, we carried out fully atomistic molecular dynamics simulations (MD) to investigate the atomic conformations/rearrangements during and after high impact collisions of silver nanocubes at ultrasonic velocity. Our results indicate the co-existence of polycrystalline arrangements after the impact formed by core HCP domains surrounded by FCC ones, which could also contribute to explain the structural hardening

LISA Sensitivities to Gravitational Waves from Relativistic Metric Theories of Gravity

The direct observation of gravitational waves will provide a unique tool for probing the dynamical properties of highly compact astrophysical objects, mapping ultra-relativistic regions of space-time, and testing Einstein's general theory of relativity. LISA (Laser Interferometer Space Antenna), a joint NASA-ESA mission to be launched in the next decade, will perform these scientific tasks by detecting and studying low-frequency cosmic gravitational waves through their influence on the phases of six modulated laser beams exchanged between three remote spacecraft. By directly measuring the polarization components of the waves LISA will detect, we will be able to test Einstein's theory of relativity with good sensitivity. Since a gravitational wave signal predicted by the most general relativistic metric theory of gravity accounts for {\it six} polarization modes (the usual two Einstein's tensor polarizations as well as two vector and two scalar wave components), we have derived the LISA Time-Delay Interferometric responses and estimated their sensitivities to vector- and scalar-type waves. We find that (i) at frequencies larger than roughly the inverse of the one-way light time ($\approx 6 \times 10^{-2}$ Hz.) LISA is more than ten times sensitive to scalar-longitudinal and vector signals than to tensor and scalar-transverse waves, and (ii) in the low part of its frequency band is equally sensitive to tensor and vector waves and somewhat less sensitive to scalar signals.Comment: Paper submitted to Physical Review D. It is 20 pages long and contains 14 figure