Nonlinear semi-analytical model for simulation of few-mode fiber transmission

In this letter, a nonlinear semi-analytical model (NSAM) for simulation of few-mode fiber transmission is proposed. The NSAM considers the mode mixing arising from the Kerr effect and waveguide imperfections. An analytical explanation of the model is presented, as well as simulation results for the transmission over a two mode fiber (TMF) of 112 Gb/s using coherently detected polarization multiplexed quadrature phase-shift-keying modulation. The simulations show that by transmitting over only one of the two modes on TMFs, long-haul transmission can be realized without increase of receiver complexity. For a 6000-km transmission link, a small modal dispersion penalty is observed in the linear domain, while a significant increase of the nonlinear threshold is observed due to the large core of TMF

Successful treatment of vancomycin-resistant enterococcus ventriculitis in a child

Enterococci are an uncommon cause of CNS infection. A 20 month-old boy, diagnosed with hydrocephalus with ventriculoperitoneal shunt and history of lengthy hospitalization and use of wide spectrum antibiotics, was admitted to the pediatric intensive care unit diagnosed with ventriculitis. On the 14th day of empirical antibiotic therapy (vancomycin and meropenem) the child presented fever while the CSF sample culture evidenced vancomycin-resistant Enterococcus faecium. The patient received intravenous linezolid achieving cerebrospinal fluid sterilization. Conclusion: Intravenous linezolid appears to be a safe and effective therapy for vancomycin-resistant enterococcus ventriculoperitoneal shunt infection.Federal University of São Paulo State Hospital of Diadema Department of PediatricsUNIFESP, State Hospital of Diadema Department of PediatricsSciEL

A DIGNIDADE HUMANA A PARTIR DE UMA ÉTICA DO TESTEMUNHO: Entre a desumanização, o relato e a corporeidade

A partir de uma pesquisa bibliográfica de caráter qualitativo, este artigo busca identificar o potencial do relato de reformular a teoria moral da dignidade humana, tornando a normatividade dela decorrente sensível às peculiaridades das minorias sociais. Este trabalho, dentre várias outras produções, tem como referencial teórico principal a obra Torture and Dignity: An Essay on Moral Injury (2015), de Jay Bernstein, além de utilizar, para fins de compreensão do caráter intergeracional do relato, o livro O que os cegos estão sonhando? (2012), organizada por Noemi Jaffe. Estabelecido tal panorama, busca-se discutir a hipótese de que o relato possui funções subjetivas, morais e sociais que, juntas, são capazes de fazer com que o indivíduo retome o controle de seu corpo após experiências de degradação, senso de corporeidade esse que, ao tornar igualmente relevantes os aspectos voluntário e involuntário do ser, tornam contextuais as concepções de dignidade humana e de Direitos Humanos

The use of spect/ct in the evaluation of heterotopic ossification in para/tetraplegics

Objective:To evaluate the stage of maturation and the metabolism of neurogenic heterotopic ossification by using SPECT/CT.Methods:A total of 12 medical records of patients with spinal cord injury, all of them classified according to the ASIA protocol (disability scale from the American Spinal Injury Association) in complete lesion (A) and partial lesions (B, C and D) and registered at the Laboratory of Biomechanics and Rehabilitation of the Locomotor System, were submitted to SPECT/CT evaluation.Results:Sixteen hips with heterotopic ossification observed in X-ray were studied and only two (12.5%) had high osteoblastic activity. Five hips showed medium activity, three (18.75%) low activity and six (37.5%) did not present any activity detected by SPECT/CT.Conclusion:SPECT/CT helps to determinate which patients have a greater risk of relapse after surgical resection, proving to be a useful imaging study in preoperative evaluation that can be used to determinate the postoperative prognosis of these patients. Level of Evidence III, Investigating a Diagnostic Test.121

Concepções sobre a comunicação matemática de uma futura professora

Este texto apresenta um estudo de caso, de natureza interpretativa, focado nas concepções de comunicação matemática de uma futura professora, que está a iniciar um curso de Educação Básica (1.º ciclo de estudos, que dá acesso aos segundos ciclos de formação de professores – 1.º e 2.º ciclos do ensino básico – e educação de infância). O estudo foi orientado por dois objectivos: (i) conhecer as concepções de uma futura professora sobre a comunicação matemática e o papel que esta desempenha na aprendizagem e no ensino da disciplina; (ii) compreender como evoluem essas concepções sobre a comunicação matemática e qual o papel da formação inicial nesse processo de desenvolvimento. Os dados recolhidos, através de inquérito por entrevista, mostram que a jovem futura professora defende um modo de comunicação reflexiva na aprendizagem da disciplina, que, embora consonante com o seu estilo pessoal, contrasta com a sua experiência de aluna no ensino secundário. A experiência no ensino superior, embora ainda no princípio, revela já a sua influência na forma como concebe o papel da linguagem matemática na comunicação e no valor da discussão na aprendizagem

Muscle Activation Differs between Three Different Knee Joint-Angle Positions during a Maximal Isometric Back Squat Exercise

The purpose of this study was to compare muscle activation of the lower limb muscles when performing a maximal isometric back squat exercise over three different positions. Fifteen young, healthy, resistance-trained men performed an isometric back squat at three knee joint angles (20∘, 90∘, and 140∘) in a randomized, counterbalanced fashion. Surface electromyography was used to measure muscle activation of the vastus lateralis (VL), vastus medialis (VM), rectus femoris (RF), biceps femoris (BF), semitendinosus (ST), and gluteusmaximus (GM). In general,muscle activity was the highest at 90∘ for the three quadricepsmuscles, yet differences in muscle activation between knee angles were muscle specific. Activity of the GM was significantly greater at 20∘ and 90∘ compared to 140∘.The BF and ST displayed similar activation at all joint angles. In conclusion, knee position altersmuscles activation of the quadriceps and gluteus maximus muscles. An isometric back squat at 90∘ generates the highest overall muscle activation, yet an isometric back squat at 140∘ generates the lowest overall muscle activation of the VL and GM only

GROWTH, DEVELOPMENT AND FOLIARY ULTRASTRUCTURAL PARAMETERS OF DIFFERENT EUCALYPTUS GENETIC MATERIALS

Currently eucalyptus is used as raw material in different industrial segments. The aim of this study was to evaluate the growth, development and ultrastructural parameters in different eucalyptus genetic materials. The randomized block experiment was carried out in ten treatments and five replicates, with different genetic materials: six hybrids:I-144; H-13; 110; NA-151; NA-189 (Eucalyptus urophilla S. T. Blake x Eucalyptus grandis W. Hill); Grancam 1277 (Eucalyptus grandis W. Hill x Eucalyptus camaldulensis Dehnh.); and four pure genetic materials:0020 (Eucalyptus saligna Sm.); 0010 (Eucalyptus resinífera Sm.); Eucalyptus pellita F. Muell. and Corymbia torelliana (F. Muell.) K. D. Hill & L. A. S. Johnson.Approximately four years after planting, the following variables were determined: plant height (AP), diameter at breast height (DAP), spad index (ISPAD), adaxial cuticle thickness (ECAD), abaxial cuticle thickness (ADX), abaxial epidermal thickness (EEAB), xylem diameter (DX), phloem diameter (DF) and palisade parenchyma length (CPP).The materials NA - 151 (Eucalyptus urophilla x E. grandis) and Grancam 1277 (E. grandis x E. camaldulensis) presented higher plant height (AP). The materials 0020 (E. saligna); 0010 (E. resinífera) and Corymbia torelliana presented smaller diameter at breast height (DAP). In general, the Corymbia torelliana genetic material had the lowest values in the ultrastructural foliar parameter

Three-Months of Neuromotor Fitness Program Affect the Body Composition and Physical Performance in Untrained Women

International Journal of Exercise Science 12(4): 1346-1354, 2019. The purpose of this study was to investigate the effect of three months of neuromotor fitness on body composition and physical performance in untrained women. Nine untrained women (age: 38.1 ± 6.9 years; total body mass: 79.3 ± 10.7 kg; height: 161.5 ± 3.9 cm; body mass index: 30.4 ± 4.1) participated in the present study. Subjects attended the laboratory on twenty-seven occasions during a three-month period at least forty-eight hours in between sessions. Sessions 1 and 2 were used to measure morphology and body composition, and to familiarize all subjects with the experimental procedure and physical performance tests (muscle power, balance, muscular endurance, and flexibility). During sessions 3 to 26, all exercises were performed twice a week during 60-min in each session. All exercises were divided into three different circuit programs composed by12 stations with one-min exercise and a passive recovery of thirty-sec. There were significant decreases (p \u3c 0.005) for circumference in the right and left arm, pectoral, waist, abdomen, hip, and right and left calf. There were significant increases in lean body mass (p \u3c 0.005) and total body weight (p \u3c 0.005). There were significant decreases for body mass index (p \u3c 0.005), fat mass (p \u3c 0.005), and fat percentage (p \u3c 0.05). There were significant decreases (p \u3c 0.005) for skinfold in triceps, pectoral, subaxilar, shoulder blade, abdomen, hip, and thigh. There were significant increases for power test (p \u3c 0.005), muscular endurance test (p \u3c 0.005), and functional test (p \u3c 0.005). There were no significant differences for flexibility (p \u3c 0.005). The neuromotor fitness program affects the body composition and increases the physical performance in untrained women

TRATAMENTO DE RESÍDUOS DO MÉTODO DE MOHR UTILIZANDO EVAPORADOR SOLAR E REDUÇÃO COM BISSULFITO

O quadro econômico atual estimula o consumismo e traz consigo uma alta produção de resíduos, estes muitas vezes ignorados até que acarretem ameaças e conflitos ambientais mais graves às comunidades. As universidades não estão isentas dessa problemática, pois nela há diversos locais de produção e acúmulo de resíduos. O correto gerenciamento destes resíduos é essencial para minimizar os riscos ao meio ambiente, bem como à comunidade acadêmica. Atualmente, o maior desafio é com os resíduos laboratoriais, pois são de uma enorme complexidade e diversidade e o tratamento desses resíduos, muitas vezes envolve a geração de um novo material residual. Assim, este trabalho tem como objetivo o estudo da pré-concentração do resíduo do Método de Mohr, para posterior tratamento, em um evaporador solar construído especificamente para tal fim, tornando o gerenciamento do referido resíduo mais econômico, limpo e seguro. Com a utilização do evaporador solar houve a minimização de riscos de acidentes, bem como a economia com energia elétrica em R$862,87. O evaporador solar se mostrou muito eficiente, pois a água resultante da evaporação, devido a baixa concentração de cromo total remanescente (0,235 mgL-1) e pH 7, pode ser reutilizada para manutenções de jardins reduzindo a utilização de água tratada para este fim.AbstractThe current economic framework encourages consumerism and brings with it a high production of waste, these often ignored until they cause in most serious environmental conflicts and threats to communities. Universities are not exempt from this problem, because in it there are several places of production and accumulation of waste. The correct management of these wastes is essential to minimize the risk to the environment, as well as the academic community. Currently, the greatest challenge is with the laboratory waste, because they are of enormous complexity and diversity and treatment of such waste, often involves the generation of a new residual material. This work aims the study of pre-concentration of waste of Mohr method, for subsequent treatment, in a solar evaporator built specifically for this purpose, making the management of this waste more economical, clean and safe. With the use of solar evaporator was minimizing the risk of accidents and the economy with electricity at R$ 862,87. The solar evaporator proved to be very efficient, because water resulting from evaporation, due to low concentration of total chromium remnant (0.235 mgL -1 ) and pH 7, can be reused for garden maintenance reducin the use of treated water for this purpose

Projeto de extensão voltado a educação em saúde para pacientes com síndrome metabólica pós-infecção de Covid-19 na região Amazônica

Em 2020, um novo coronavírus acarretou a declaração pela Organização Mundial da Saúde (OMS) de um evento pandêmico global. Com a expansão da pandemia para mais territórios, o acometimento dos grupos de risco passou a ser significativamente mais evidente do que em grupos previamente hígidos. Indivíduos categorizados como obesos, pacientes diagnosticados com Diabetes Mellitus tipo 2 (DM2) e hipertensos demonstraram ser mais suscetíveis a casos mais graves do que outras parcelas da sociedade, reforçando ainda mais a grande prevalência dessas doenças no mundo moderno. Pelo período curto desde o início dos casos de COVID-19, poucos estudos conseguem abordar o diagnóstico ou mesmo o desenvolvimento das sequelas a longo prazo, o que muitas vezes pode levar anos até serem percebidas ou iniciarem seu curso clínico. Com estudos apontando a possibilidade da ocorrência de sintomas ou agravamento da síndrome metabólica em pacientes pós-infectados, o processo de educação em saúde objetivou estabelecer formas de criar e conscientizar sobre como manter a qualidade de vida e a alimentação saudável, a fim de contribuir para a redução nos impactos negativos a longo prazo da síndrome metabólica prévia ou iniciada após a COVID-19. O projeto de extensão focou, assim, na prevenção do desenvolvimentoa posteriori de complicações ocasionadas pela infecção do SARS-Cov-2 por meio do incentivo a um estilo de vida de qualidade. O uso de cartilhas educativas e questionários de satisfação ao atendimento foram ferramentas para o esclarecimento sobre como realizar as mudanças no estilo de vida, além da atenção multidisciplinar como auxílio na consolidação da educação em saúde para estes pacientes. Desta maneira, os integrantes deste projeto buscaram fomentar a pesquisa sobre esta área ainda com poucos estudos populacionais, incentivando a construção de conhecimento sobre o curso clínico deste vírus. Havendo o contato entre os membros do projeto e os pacientes, a construção das relações ocorre bilateralmente, com a intercomunicação entre o conhecimento acadêmico e os valores culturais, trazendo a melhoria futura para os pacientes.In 2020, a new coronavirus strain led to the declaration by the World Health Organization (WHO) of a pandemic global event. With an expansion pandemic to several territories, the involvement of risk groups started to be significantly more evident than healthier patients. Categorized individuals as obese, diagnosed diabetes mellitus type 2 (DM2), and high blood pressure are shown to be more susceptible to severe cases than other individuals,reinforcing even more the greater prevalence of those diseases in our modern world. In the short period since COVID-19 onset cases, few studies could manage to address the diagnostics or even development of long-term symptoms, which sometimes take years to be noticed or start its natural clinic course. With studies showing thepossibility of symptoms occurrence or serious deepening of metabolic syndrome in post-infected patients, the health education process aims to establish ways to create and raise awareness about maintaining life quality and healthy eating habits to contribute to a reduction of negative impacts long-term wise caused by a previous metabolicsyndrome or started after COVID-19 infection. The extension project focused then on posterior complication development prevention caused by SARS-CoV-2 infection by encouraging a quality lifestyle. The educational booklets and attendance satisfaction questionnaires were tools for better clarification about how to make those quality lifestylechanges, besides the multidisciplinary attention as an aid to consolidate the health education to the patients. In this way, members of this project sought to foment research activities about this field with still few population studies, encouraging to consolidate the knowledge about the clinical course of this virus. Having contact amongst project members and patients, the construction of relations occurred bilaterally, with intercommunication between academic knowledge and cultural values, bringing a better future change to the patients