Basics of a generalized Wiman-Valiron theory for monogenic Taylor series of finite convergence radius

In this paper, we develop the basic concepts for a generalized Wiman-Valiron theory for Clifford algebra valued functions that satisfy inside an n + 1-dimensional ball the higher dimensional Cauchy-Riemann system . These functions are called monogenic or Clifford holomorphic inside the ball. We introduce growth orders, the maximum term and a generalization of the central index for monogenic Taylor series of finite convergence radius. Our goal is to establish explicit relations between these entities in order to estimate the asymptotic growth behavior of a monogenic function in a ball in terms of its Taylor coefficients. Furthermore, we exhibit a relation between the growth order of such a function f and the growth order of its partial derivatives

Massive right atrial myxoma presenting as syncope and exertional dyspnea: case report

Primary heart neoplasms are rare occurring with an estimated incidence of 0.0017-0.19%. Myxoma is the most prevalent primary heart tumor. The right atrium is an unusual localization, occurring only in 15-20% of myxoma cases. We report a rare case of a massive right atrial myxoma causing tricuspid valve obstruction and presenting as syncope and exertional dyspnea. This case illustrates the influence of myxoma's size, position and mobility as well as patient's body posture and respiration to the development of signs and symptoms. Three-dimensional echocardiography proved useful in surgery planning, allowing a better definition of the tumor outline and attachment

O Direito Internacional dos Refugiados e o princípio do non-refoulement: a possibilidade de seu reconhecimento como norma de jus cogens a partir dos sistemas europeu e interamericano de direitos humanos

O presente trabalho tem como objetivo central analisar como a Corte Europeia de Direitos Humanos e a Corte Interamericana de Direitos Humanos têm aplicado o princípio do non-refoulement e a possibilidade de seu reconhecimento como uma norma de jus cogens. Para tanto, o trabalho apresenta uma construção histórica do conceito de refugiado, abordando os efeitos que a sua evolução trouxe a aplicação do non-refoulement, e do conceito de jus cogens, estudando as características das normas imperativas do direito internacional geral e do princípio do non-refoulement. Também, faz-se uma análise do estado da arte da jurisprudência do sistema europeu e do sistema interamericano de proteção de direitos humanos sobre o tema, buscando esclarecer os diferentes posicionamentos entre eles em relação ao reconhecimento do princípio do non-refoulement enquanto norma de jus cogens, evidenciando as divergências interpretativas existentes em torno do princípi

LOCALIZAÇÃO RADIOGRÁFICA PELO MÉTODO DE CLARK: PRINCÍPIOS E INDICAÇÕES

A  determinação  do  posicionamento  de  dentes  retidos  e impactados,  corpos  estranhos,  e  condutos  radiculares  são  de  grande importância  para  o  planejamento  de  tratamento  cirúrgicos  e  endodônticos  em odontologia.  As  radiografias  convencionais  são  exames  de  baixo  custo associadas à baixas doses de radiação, valendo ressaltar que são exames de fácil  execução  no  próprio  consultório  odontológico.  No  entanto,  estes  exames apresentam  como  limitação  a  produção  de  imagens  bidimensionais,  apenas com  representação  da  largura  e  altura  das  estruturas.  Existem  modificações desses  exames  que  representam  uma  maneira  de  diminuir  essas desvantagens

Quantitative TEM imaging of the magnetostructural and phase transitions in FeRh thin film systems

Equi-atomic FeRh is a very interesting material as it undergoes a magnetostructural transition from an antiferromagnetic (AF) to a ferromagnetic (FM) phase between 75-105 °C. Its ability to present phase co-existence separated by domain walls (DWs) above room temperature provides immense potential for exploitation of their DW motion in spintronic devices. To be able to effectively control the DWs associated with AF/FM coexistence in FeRh thin films we must fully understand the magnetostructural transition and thermomagnetic behaviour of DWs at a localised scale. Here we present a transmission electron microscopy investigation of the transition in planar FeRh thin-film samples by combining differential phase contrast (DPC) magnetic imaging with in situ heating. We perform quantitative measurements from individual DWs as a function of temperature, showing that FeRh on NiAl exhibits thermomagnetic behaviour consistent with the transition from AF to FM. DPC imaging of an FeRh sample with HF-etched substrate reveals a state of AF/FM co-existence and shows the transition from AF to FM regions proceeds via nucleation of small vortex structures, which then grow by combining with newly nucleated vortex states into larger complex magnetic domains, until it is in a fully-FM state

APORIAS DA SUBJETIVIDADE NA ACEPÇÃO DE ADORNO E SUAS DECORRÊNCIAS PARA A EDUCAÇÃO AMBIENTAL

Vários autores tomam a subjetividade como referência nas discussões hodiernas. De certo modo, ela consiste num ponto de clivagem para entendimento da modernidade e seus legados em nossas práticas. A acepção de sujeito que se sustenta nesse contexto é a de portador de sentido ao mundo com possibilidades de intervir nos endereçamentos da humanidade. A prospecção da subjetividade atinge as diferentes dimensões do pensar e do agir humano. Dentre os diversos campos, onde a subjetividade se afirma, fica explícita a sua atuação, na possibilidade de domínio da natureza. Este artigo apresenta, num primeiro momento, algumas limitações da subjetividade, tendo por referência o texto Sobre Sujeito e Objeto, de um dos expoentes da Escola de Frankfurt, Theodor Adorno; num segundo, estabelece algumas relações com a Educação Ambiental. Trata-se de uma pesquisa bibliográfica, que se desenvolverá através de uma abordagem histórico, reconstrutiva, analítica e crítica

Volatile constituents and behavioral change induced by Cymbopogon winterianus leaf essential oil in rodents

Cymbopogon winterianus Jowitt (‘Java citronella’) is an important essential oil yielding aromatic grass cultivated in India and Brazil and its volatile essential oils extracted from its leaves are used in perfumery, cosmetics, pharmaceuticals and flavoring industries. However, there is no report on any psychopharmacological study of C. winterianus leaf essential oil (LEO) available to date. In this study, the pharmacological effects of the LEO were investigated in animal models and its phytochemical analyses. GC-MS analysis showed a mixture of monoterpenes, as citronellal (36.19%), geraniol (32.82%) and citronellol (11.37%). LEO exhibited an inhibitory effect on the locomotor activity of mice, an antinociceptive effect by increasing the reaction time in the writhing and capsaicin tests. All doses induced a significant increase in the sleeping time of animals not having modified however, the latency. The LEO did not alter the remaining time of the animals on the rota-rod apparatus. These results suggest a possible central effect.Key words: Cymbopogon winterianus, essential oil, CNS, behavioral effects, analgesic

Diabetic ketoacidosis complicated by the use of ecstasy: a case report

<p>Abstract</p> <p>Introduction</p> <p>Ecstasy (3,4-methylenedioxymethamphetamin), a hallucinogenic amphetamine, is often used by young people, especially at 'raves'. This illicit drug can cause many metabolic changes and its use, when associated with prolonged exercise, may exacerbate ketoacidosis in type 1 diabetic patients.</p> <p>Case presentation</p> <p>This is a case of ketoacidosis complicated by the use of ecstasy in a 19-year-old insulin-dependent diabetic Caucasian woman.</p> <p>Conclusion</p> <p>The use of ecstasy may trigger diabetic ketoacidosis in patients with a preexisting metabolic disorder</p

Phase transitions in biological membranes

Native membranes of biological cells display melting transitions of their lipids at a temperature of 10-20 degrees below body temperature. Such transitions can be observed in various bacterial cells, in nerves, in cancer cells, but also in lung surfactant. It seems as if the presence of transitions slightly below physiological temperature is a generic property of most cells. They are important because they influence many physical properties of the membranes. At the transition temperature, membranes display a larger permeability that is accompanied by ion-channel-like phenomena even in the complete absence of proteins. Membranes are softer, which implies that phenomena such as endocytosis and exocytosis are facilitated. Mechanical signal propagation phenomena related to nerve pulses are strongly enhanced. The position of transitions can be affected by changes in temperature, pressure, pH and salt concentration or by the presence of anesthetics. Thus, even at physiological temperature, these transitions are of relevance. There position and thereby the physical properties of the membrane can be controlled by changes in the intensive thermodynamic variables. Here, we review some of the experimental findings and the thermodynamics that describes the control of the membrane function.Comment: 23 pages, 15 figure

Acro-cardio-facial syndrome

Acro-cardio-facial syndrome (ACFS) is a rare genetic disorder characterized by split-hand/split-foot malformation (SHFM), facial anomalies, cleft lip/palate, congenital heart defect (CHD), genital anomalies, and mental retardation. Up to now, 9 patients have been described, and most of the reported cases were not surviving the first days or months of age. The spectrum of defects occurring in ACFS is wide, and both interindividual variability and clinical differences among sibs have been reported. The diagnosis is based on clinical criteria, since the genetic mechanism underlying ACFS is still unknown. The differential diagnosis includes other disorders with ectrodactyly, and clefting conditions associated with genital anomalies and heart defects. An autosomal recessive pattern of inheritance has been suggested, based on parental consanguinity and disease's recurrence in sibs in some families. The more appropriate recurrence risk of transmitting the disease for the parents of an affected child seems to be up to one in four. Management of affected patients includes treatment of cardiac, respiratory, and feeding problems by neonatal pediatricians and other specialists. Prognosis of ACFS is poor