Magneto-optical Constants Of Fluoride Optical Crystals And Other Ab2 And A2b Type Compounds

Measurements of the magneto-optical rotation at visible wavelengths for the optical crystals MgF2, CaF2, SrF2, BaF2 and PbF2 are reported. A pulsed magnetic field between 50 and 80 kG was used. The PbF2 crystal was shown to be a good choice for the construction of optical isolators operating in the near UV. From the data, the magneto-optic anomaly factor γ for each sample was calculated and magneto-optic constants reported in the literature for other compounds with the general formulae AB2 and A2B were compiled. The magneto-optic anomaly factors for these types of materials are analysed in terms of Pauling's electronegativity.921527532757Barnes, N.P., Petway, L.B., (1992) J. Opt. Soc. Am. B: Opt. Phys, 9, p. 1912Ling, H.Y., (1994) J. Opt. Soc. Am. A, 11, p. 754Munin, E., Villaverde, A.B., (1991) J. Phys. Condens. Matter, 3, p. 5099Guerrero, H., Escudero, J.L., Bernabeu, E., (1992) Opt. Lett., 17, p. 760Munin, E., Roversi, J.A., Villaverde, A.B., (1992) J. Phys. D: Appl. Phys., 25, p. 1635Weber, M.J., (1986) Proc. SPIE-Int. Soc. Opt. Eng., 681, p. 75Wilson, D.K., (1991) Laser Focus World, 27, p. 175Schulz, P.A., (1989) Appl. Opt., 28, p. 4458Wunderlich, J.A., Deshazer, L.G., (1977) Appl. Opt., 16, p. 1584Gauthier, D.J., Narum, P., Boyd, R.W., (1986) Opt. Lett., 11, p. 623Villaverde, A.B., (1981) J. Phys. E: Sci. Instrum., 14, p. 1073Johnson Jr., T.F., Proffitt, W., (1980) IEEE J. Quantum Electron., 16, p. 483Schulz, P.A., (1988) IEEE J. Quantum Electron., 12, p. 1039Malecki, J., Surma, M., Gibalewickz, J., (1957) Acta Phys. Pol., 16, p. 151Deeter, M.N., Rose, A.H., Day, G.W., (1990) J. Lightwave Technol., 8, p. 1838Rose, A.H., Deeter, M.N., Day, G.W., (1993) Opt. Lett., 18, p. 1471Ning, Y.N., Jackson, D.A., (1993) Opt. Lett., 18, p. 835Pistoni, N.C., Martinelli, M., (1993) Opt. Lett., 18, p. 314Wanninger, P., Valdez, E.C., Shay, T.M., (1992) IEEE Photon Technol. Lett., 4, p. 94Munin, E., (1996) IEEE Trans. Magn., 32, p. 316Boswarva, I.M., Howard, R.E., Lidiard, A.B., (1962) Proc. R. Soc. London Ser. A, 269, p. 125Kolodziejczak, J., Lax, B., Nishina, Y., (1962) Phys. Rev., 128, p. 2655Balkanski, M., Amzallag, E., Langer, D., (1966) J. Phys. Chem. Solids, 27, p. 299Ramaseshan, S., (1948) Proc. Indian Acad. Sci. A, 28, p. 360Darwin, C.G., Watson, W.H., (1927) Proc. R. Soc. London Ser. A, 114, p. 474Pauling, L., (1960) The Nature of the Chemical Bond, , Cornell University Press, New York, 3rd edn(1974) Hoya Faraday Rotator Glass Report, , Hoya Optics Inc., TokioIoshino, I., (1980) Jpn. J. Appl. Phys., 19, p. 7451Miles, P.A., Dodge, M.J., Ballard, S.S., Browder, J.S., Feldman, A., Weber, M.J., (1986) CRC Handbook of Laser Science and Technology, 4, pp. 24-41. , ed. M. J. Weber, CRC Press Inc., Boca Raton, FLGrevendonk, W., Van Den Abeele, L., Van Den Keybus, P., Vanhuyse, B., Ruymbeek, G., (1981) Phys. Stat. Solidi B, 108, pp. K53Baer, W.S., (1967) J. Phys. Chem. Solids, 28, p. 677Cronemeyer, D.C., (1952) Phys. Rev., 87, p. 876Becquerel, M.H., (1897) Comptes Rendus, 125, p. 679Dynasil Synthetic Fused Silica Catalogue 302M, , Dynasil Corporation, Berlin, NJBalbin Villaverde, A., Donatti, D.A., (1979) J. Chem. Phys., 71, p. 4021Forsythe, W.E., (1969) Smithsonian Physics Tables, p. 530. , Washington, 9th ednIngersoll, L.R., Liebenberg, D.H., (1958) J. Opt. Soc. Am., 48, p. 339Fox, J.J., Tate, F.G.H., (1930) International Critical Tables of Numerical Data, Physics, Chemistry and Technology, 7, p. 01. , ed. E. W. Washburn, McGraw Hill, New York, 1st ednCook Jr., W.R., Jaffe, H., (1972) American Institute of Physics Handbook, p. 230. , ed., D. E. Gray, McGraw Hill, New York, 3rd edn., ch. 6Wells, A.F., (1984) Structural Inorganic Chemistry, , Oxford University Press, Oxford, 5th ednCole, H., (1950) J. Soc. Glass Technol., 34, p. 22

Tech4Good – Interpretador de LGP

Nowadays, the need to transmit information, be it between people or be- tween devices is getting more and more important. The need of communica- tion and its inherent ease is something important in a social perspective. How- ever, when we are talking about someone’s perspective that either is hard of hearing or totally deaf, this communication is hardened in an exponential form. Although this problem affects a minority of people, it doesn´t stop being an eminent problem that will certainly lead to discomfort, either to the person that has the hearing impairment, that may feel frustration due to not being able to express himself, either to their family and friends, that are there and may feel unable to help them with their problem. This master's thesis arises precisely in the perspective of a possible solu- tion to this problem. The project consists in the creation of a glove, that has various built-in sensors that will measure hand position related to the space, so that when the hand moves the data can be converted to LGP (Portuguese Sign Language). When the recognition of the letters is done the main purpose is to convert this inputs to voice, with the aid of a text-to-speech engine like Amazon Polly or Google cloud text-to-speech, so that this inputs can be heard and understood between all people

Learning Scorecard dashboards: visualizing student learning experience

This paper presents the design of dashboards for the Learning Scorecard, a platform designed for improving the student experience in a Higher Education course using gamification and Business Intelligence (BI) techniques. LS is a Learning Analytics application, that has been used in Data Warehouse and BI courses in a University setting since 2016. The LS platform has two independent views: student view and faculty (or course coordinator) view. In the LS faculty view, dashboards were designed according to the best practices of information visualization for decision support, whereas in the student view the visualization of the learning experience is immersed in gamification elements. This paper focuses only on student dashboards, which are driven by engagement and motivation of students to improve their collaboration and learning experience. A central design decision for the LS implementation, was the recognition that the way students want to track their progress and their learning experience in a course is fundamentally different that the way teachers need to monitor student progress. The presented learning dashboards use gamification mechanisms to enable the visualization of self-assessment results giving a clear indication of the learning progress of students in a course.info:eu-repo/semantics/acceptedVersio

Learning scorecard dashboards: visualizing student learning experience

This paper presents the design of dashboards for the Learning Scorecard, a platform designed for improving the student experience in a Higher Education course using gamification and Business Intelligence (BI) techniques. LS is a Learning Analytics application, that has been used in Data Warehouse and BI courses in a University setting since 2016. The LS platform has two independent views: student view and faculty (or course coordinator) view. In the LS faculty view, dashboards were designed according to the best practices of information visualization for decision support, whereas in the student view the visualization of the learning experience is immersed in gamification elements. This paper focuses only on student dashboards, which are driven by engagement and motivation of students to improve their collaboration and learning experience. A central design decision for the LS implementation, was the recognition that the way students want to track their progress and their learning experience in a course is fundamentally different that the way teachers need to monitor student progress. The presented learning dashboards use gamification mechanisms to enable the visualization of self-assessment results giving a clear indication of the learning progress of students in a course.info:eu-repo/semantics/acceptedVersio

Efeito da época do corte de vegetação nos componentes de rendimento de sementes de cornichão.

SIEPE. On-line

Sepsis during pregnancy: case report

BACKGROUND AND OBJECTIVES: Sepsis during pregnancy is a rare complication. This potentially fatal disease often occurs due to maternal infectious and can lead to fetal loss. Therefore, any attempted treatment must be aimed at the mother s well being. As a matter of fact, there are few recent medical publications about sepsis in pregnancy. In spite of this, the treatment based on Surviving Sepsis Campaign seems suitable and practical. The aim of this article is making a case report highlighting a very well succeeded treatment of a pregnant woman with urinary sepsis. CASE REPORT: A 22 year old in her 27th week of pregnancy is hospitalized with pyelonefhritis. One day later, she begins presenting signs of sepsis and unresponsive hypoxemia, resulting in intubation. Afterwards, she evolved with persistent low blood pressure that was unresponsive to volume expansion and had to be put on vasopressor medication. She received intensive care support based on Surviving Sepsis Campaign. The patient evolved with an important improvement of her ventilatory stats and was extubated. After completing antibiotic treatment, she was discharged and delivered a healthy baby after 42 weeks pregnancy. CONCLUSIONS: Sepsis in pregnancy is a rare and potentially fatal complication. The main treatment is based on Surviving Sepsis Campaign. The patient had an outstanding improvement and overcame her condition after intensive care support.JUSTIFICATIVA E OBJETIVOS: A sepse durante a gestação é uma complicação rara. O comprometimento fetal resulta principalmente da descompensação materna, por conseguinte, o tratamento deve ser direcionado ao bem-estar da mãe. Poucas evidências permitem extrapolar o tratamento de pacientes não gestantes para as gestantes, porém, o tratamento baseado no Surviving Sepsis Campaing parece adequado e prático. O objetivo deste estudo foi rever o tratamento da sepse na gestação e relatar um caso de gestante com sepse grave que evoluiu favoravelmente. RELATO DO CASO: Paciente com 22 anos, primigesta, na 27ª semana de gestação foi internada com diagnóstico de pielonefrite aguda. Um dia após a internação apresentou quadro de sepse, com hipoxemia refratária às medidas não-invasivas necessitando de intubação traqueal. Após a intubação evoluiu com hipotensão refratária à expansão volêmica necessitando de fármaco vasoativo. Foi interrompido o uso de noradrenalina no mesmo dia e prescrito cefepima. Evoluiu com importante melhora dos padrões ventilatórios, sendo extubada e recebeu alta hospitalar logo após completar o tratamento com antibiótico. Ao completar a 42ª semana de gestação foi internada para indução do trabalho de parto, sendo realizado parto vaginal, sem intercorrências. CONCLUSÕES: A sepse na gestação, mesmo sendo rara é potencialmente fatal. O tratamento foi baseado no Surviving Sepsis Campaign e a paciente apresentou melhora significativa dos parâmetros de perfusão nas primeiras horas com ótima evolução, apesar da gravidade da doença.UNIFESP Clínica Médica da EPMUNIFESP Pronto Socorro da EPM Unidade de Terapia IntensivaUNIFESP, Clínica Médica da EPMUNIFESP, Pronto Socorro da EPM Unidade de Terapia IntensivaSciEL

Eficacia del led azul en la fotoactivación de Staphylococcus aureus y Staphylococcus epidermidis in vitro

Un posible tratamiento para la foliculitis, empleado en estética, es el uso de radiación LED azul ya que limita el crecimiento microbiano. Diversos estudios han reportado que la radiación LED azul, con longitudes de onda en el rango de 405-470nm, tiene un efecto bactericida sobre ciertos patógenos bacterianos como Staphylococcus aureus. El presente estudio tiene por objeto evaluar la eficacia de la radiación LED azul a 450 nm (usada habitualmente en tratamientos estéticos) en la fotoinactivación de cultivos planctónicos de S. aureus y S. epidermidis empleando diferentes densidades de potencia (97, 110, 156 y 200 mW/cm2) y densidades de energía. Las suspensiones bacterianas de S. aureus (ATCC 25923) y S. epidermidis (ATCC 12228) se sembraron en placas de 24 pocillos y se irradiaron con diferentes densidades de energía y potencia. Finalizada la irradiación, se llevó a cabo la enumeración de cada suspensión bacteriana por dilución seriada en solución buffer fosfato. Luego se tomaron alícuotas de 10 µL de cada dilución para sembrarlas en placas de agar infusión Cerebro-Corazón y se incubaron durante 24 h a 37 °C. Los recuentos de UFC se expresaron en escala logarítmica (log10/mL) y se realizó el análisis estadístico de ANOVA y test de Tukey. Los resultados indicaron que las densidades de energía y potencia utilizadas fueron insuficientes para causar un efecto antimicrobiano en cultivos planctónicos de S. aureus o S. epidermidis con una sola aplicación de radiación azul.One possibility of treatment in Aesthetics for folliculitis is a blue LED, as it acts on microbial control. Studies describe that the blue LED, with 405-470nm wavelength, has a bactericidal effect when irradiated in certain bacteria such as Staphylococcus aureus. This study aimed to evaluate the 450 nm blue LED's efficacy as a modality in aesthetic treatments in the photoinactivation of the planktonic strains of S. aureus and S. epidermidis with power densities of 97, 110, 156, and 200 mW/cm2 in different energy densities. Bacterial suspensions of S. aureus (ATCC 25923) and S. epidermidis (ATCC 12228) were plated in 24-well plates and irradiated with other energy and power densities. After irradiation, each bacterial suspension was diluted in a phosphate buffer solution in a 96-well plate. Aliquots of 10 µL were collected from this dilution and streaked, in triplicate, in Brain Heart Infusion agar plates and incubated for 24h/37 °C. CFU counts were expressed in log10/mL and submitted to ANOVA and Tukey statistical tests. The energy and power densities used were insufficient to cause an antimicrobial effect on S. aureus or S. epidermidis planktonic cultures with a single light application.Uma possibilidade de tratamento em Estética para foliculite é o uso do LED azul, pois atua no controle microbiano. Estudos descrevem que o LED azul, com comprimentos de onda de 405-470nm, tem efeito bactericida quando irradiado em determinadas bactérias como Staphylococcus aureus. Este estudo teve como objetivo avaliar a eficácia dos LED's azuis de 450 nm como modalidade em tratamentos estéticos na fotoinativação das cepas planctônicas de S. aureus e S. epidermidis com densidades de potência de 97, 110, 156 e 200 mW/cm2 em diferentes densidades de energia. Suspensões bacterianas de S. aureus (ATCC 25923) e S. epidermidis (ATCC 12228) foram semeadas em placas de 24 poços e irradiadas com diferentes densidades de energia e potência. Após a irradiação, cada suspensão bacteriana foi diluída em uma solução tampão de fosfato em uma placa de 96 poços. Alíquotas de 10 µL foram coletadas desta diluição e semeadas, em triplicata, em placas de ágar Brain Heart Infusion e incubadas por 24h/37°C. As contagens de UFC foram expressas em log10/mL e submetidas aos testes estatísticos ANOVA e Tukey. As densidades de energia e potência utilizadas foram insuficientes para causar efeito antimicrobiano em culturas planctônicas de S. aureus ou S. epidermidis com uma única aplicação de luzFil: Teixeira Pedroso, J.. Universidade do Vale do Paraíba; BrasilFil: Ponce, E.. Universidade do Vale do Paraíba; BrasilFil: Pinto, Juliana Guerra. Universidade do Vale do Paraíba; BrasilFil: Miñan, Alejandro Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaFil: Ferreira Strixino, J.. Universidade do Vale do Paraíba; Brasi

Produção de água de coco do anão vermelho e de seus híbridos com o coqueiro cigante.

bitstream/item/34807/1/cot-44.pd

Produção de água de coco de cultivares de coqueiro amarelo.

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