Mathematics and online education

Partially supported by Fundação para a Ciência e a Tecnologia (Portugal) project CAMGSD IDB/MAT/04459/2020N/

The relationship between polipharmacy, chronic complications and depression in individuals with Type 2 Diabetes Mellitus

Fueron objetivos de este estudio: caracterizar a la polifarmacia entre portadores de Diabetes Mellitus tipo 2 (DM2) y correlacionar la polifarmacia y el número de complicaciones de la DM2 con indicadores de depresión (Inventario de Depresión de Beck [IDB] y cortisol urinario [CORT]). La muestra fue integrada por 40 pacientes de la Liga de Diabetes del HCFM-USP evaluados respecto de los indicadores de depresión (CORT e IDB) y también en cuanto a la práctica de polifarmacia y número de complicaciones de la DM2. Los resultados mostraron que los medicamentos utilizados fueron: antidiabéticos orales, insulinas, antihipertensivos, diuréticos, antilipemiantes y trombolíticos. Dentro del grupo estudiado, 75% de los pacientes utilizaban diariamente entre 5 y 8 medicamentos, un 12,5% de la muestra hacía uso de 8 medicamentos/día o más; todos hicieron como mínimo tres tomas diarias, el 60% presentaba entre 1 y 3 complicaciones de la DM2 y el 22,5% presentaba 3 o más. La correlación entre los indicadores de depresión (IDB y CORT) y el número de medicamentos y de complicaciones de la DM2 no fue estadísticamente significativa. Sin embargo, hubo correlación positiva entre CORT y la cantidad de tomas diarias de medicamentos (Spearman, r=0.319, p=0.019).The objectives of this study were: to characterize the polipharmacy in subjects with Type 2 Diabetes Mellitus (DM2) and to verify the correlation between polipharmacy and number of medications for DM2 complications with depression indicators (Beck Depression Inventory (BDI) and urinary cortisol (CORT) levels). A sample composed of 40 patients with DM2 from the Diabetes League of HCFM-USP was analyzed for depression indicators (CORT and BDI) in addition to evaluation for polipharmacy and number of DM2 complications. The results showed oral hypoglycemic agents, insulins, antihypertensives, diuretics, lipid-lowering drugs and thrombolytics are the most frequent medications used. In this sample, 75% used from 5 to 8 medicines daily and 12.5% used more than eight medicines/day; all of them used to take each medication at least 3 times daily. Between 1 and 3 DM2 complications were observed in 60% of the individuals and 22.5% showed more than 3 DM2 complications. No significant correlations were observed between depression indicators (BDI and CORT), number of medications and DM2 complications. However, positive correlation was observed between CORT and daily frequency of medication (Spearman, r=0.319, p=0.019).Os objetivos deste estudo foram: caracterizar a polifarmácia entre portadores de Diabetes Mellitus tipo2(DM2); e correlacionar polifarmácia e número de complicações do DM2 com indicadores de depressão (Inventário de Depressão de Beck[IDB] e cortisol urinário[CORT]). A amostra foi composta por 40 pacientes da Liga de Diabetes do HCFM-USP, avaliados quanto aos indicadores de depressão (CORT e IDB) e quanto à prática de polifarmácia e número de complicações do DM2. Os resultados mostraram que os medicamentos utilizados foram: antidiabéticos orais, insulinas, anti-hipertensivos, diuréticos, anti-lipêmicos e trombolíticos. No grupo estudado, 75% fizeram uso diário de 5 a 8 medicamentos, e 12,5% de 8 medicamentos/dia ou mais; todos fizeram no mínimo 3 tomadas diárias, 60% tinham entre 1 e 3 complicações do DM2, e 22,5% tinham 3 ou mais. A correlação entre os indicadores de depressão(IDB e CORT), o número de medicamentos e o número de complicações do DM2 não foi estatisticamente significante. No entanto, houve correlação positiva entre CORT e número de tomadas diárias de medicamentos (Spearman,r=0.319, p=0.019)

Predicción del valor motor ocular y la profundidad subjetiva en estereopsis visual

En este trabajo partimos del constructo de ccvalor motor,) asociado a las areas retinianas estimuladas, en particular las que presentan grados de disparidad susceptibles de fusión. Mediante dos procedimierztos, uno fundarnentado en la óptica geométrica y otro en la psicofísica directa c i e Stevens, utilizando estereogramas de puntos aleatorios, se abordat1 tres ob- jetivss. En primer lugar, obtener un ajuste lineal entre alguna transforma- ción del indicador del valor motor de los movimientos oczilares y el índice de disparidad binocular (IDB) propuesto. Er1 segundo lugar, se diseiia ur2 experimento psicofísica que posibilite la elaboración de tin rnodelo, basu- do en la regresión lineal, el cua1 permita predecir la estimación subjetivtr de profundidad apartir del IDB. Finalmente, verificar el ajuste de ambas funciones, la obtenida desde una geometria euclídea y la obtenida a travis de la psicofísica. Los resultados evidencian un ajuste lineal cuasi perfecto entre el valor motor y la estimación subjetiva de profundidad, segzin el IDB. Palabras clave: Estereopsis, profundidud estereoscópica, estereogra- mas de puntos aleatorios, disparidad retiniana, percepción de la profundi- dad, rnediciórl psicofísica directa, ernparejurniento de rnodalidad cruzado

Calidad de vida de cuidadores de ancianos con enfermedad de Alzheimer

OBJECTIVES: To evaluate quality of life among caregivers of elders with Alzheimer's disease and to examine the relationship between patients' quality of life score measured with the Katz Quality of Life Index and the relationship between the caregivers' quality of life measured with the SF-36 and depression score measured with the Beck Depression Inventory (BDI). METHODS: This study was conducted in a geriatric clinic (Núcleo de Envelhecimento Cerebral) of the São Paulo Hospital of the Federal University of São Paulo. The sample consisted of 118 patients with Alzheimer's disease and their caregivers. Sociodemographic and cormobidity data and the Katz score of quality of life and the mini-mental status examination (MMSE) score of the patients with Alzheimer's disease were obtained through chart review. Data from caregivers comprised sociodemographic and comorbidity data and the SF-36 score of quality of life and the BDI score of depression. RESULTS: SF-36 scores that were indicative of depression among caregivers were vitality (score = 56.8) and the scores on physical and emotional components were = 58.1, respectively. There was a significantly negative correlation between the caregivers' BDI score and the patients' Katz score, and between the caregivers' SF-36 and BDI scores. There was also a significantly positive correlation between the scores of the caregivers' SF-36 and the patients' Katz scores and between the patient's Katz and MMSE scores. CONCLUSION: The quality of life of caregivers of patients with Alzheimer's disease was compromised, which could influence the quality of care they provided to the patients. The quality of life of the caregivers got worse when the functional capacity of the elders with Alzheimer's disease was compromised.OBJETIVO: Evaluar la calidad de vida de cuidadores de ancianos con enfermedad de Alzheimer y relacionarla al Índice de Katz de los pacientes y al escore del Inventario de Depresión de Beck de los cuidadores. MÉTODOS: El estudio fue desarrollado en el Núcleo de Envejecimiento Cerebral de la Universidad Federal de São Paulo/ Hospital São Paulo. La muestra estuvo constituída, respectivamente, por 118 cuidadores y sus pacientes con enfermedad de Alzheimer (DA). Las informaciones recolectadas en las historias clínicas de los pacientes fueron sociodemográficas y mórbidas, Índice de Katz y Mini examen del estado mental (MEEM). Los datos del cuidador, obtenidos por cuestionarios, fueron el SF - 36 y el Inventario de Depresión de Beck (IDB). RESULTADOS: Los escores más comprometidos del SF -36 de los cuidadores fueron: vitalidad (56,8) y los físicos y emocionales con 58,1, respectivamente. Hubo correlación negativa entre el IDB del cuidador y el índice de Katz de los pacientes; entre el SF - 36 y el IDB y las correlaciones positivas entre los escores del SF -36 e Índice de Katz y entre los dominios de este índice y los escores del MEEM. CONCLUSIÓN: La calidad de vida de los cuidadores de pacientes con DA se mostró alterada, pudiendo comprometer los cuidados prestados por ellos y, evidenció desmejoramiento cuando la capacidad funcional del anciano estuvo más comprometida.OBJETIVO: Avaliar a qualidade de vida de cuidadores de idosos com doença de Alzheimer e relacioná-la ao Índice de Katz dos pacientes e ao escore do Inventário de Depressão de Beck dos cuidadores. MÉTODOS: O estudo foi desenvolvido no Núcleo de Envelhecimento Cerebral da Universidade Federal de São Paulo (UNIFESP)/ Hospital São Paulo. A amostra foi constituída, respectivamente, por 118 cuidadores e seus pacientes com doença de Alzheimer (DA). As informações coletadas nos prontuários dos pacientes foram sociodemográficas e mórbidas, Índice de Katz e Miniexame de estado mental (MEEM). Os dados do cuidador, obtidos por questionários, foram sociodemográficos e mórbidos , o SF - 36 e o Inventário de Depressão de Beck (IDB). RESULTADOS: Os escores mais comprometidos do SF -36 dos cuidadores foram: vitalidade (56,8) e os físicos e emocionais com 58,1, respectivamente. Houve correlação negativa entre o IDB do cuidador e o índice de Katz dos pacientes; entre o SF - 36 e o IDB e as correlações positivas entre os escores do SF -36 e Índice de Katz e entre os domínios deste índice e os escores do MEEM. CONCLUSÃO: A qualidade de vida dos cuidadores de pacientes com DA mostrou-se alterada, podendo comprometer os cuidados por eles prestados e, evidenciou piora quando a capacidade funcional do idoso esteve mais comprometida.Universidade Federal de São Paulo (UNIFESP) Departamento de EnfermagemUNIFESP, Depto. de EnfermagemSciEL

Temperature dependent photoluminescence of lateral polarity junctions of metal organic chemical vapor deposition grown GaN

This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Journal of Applied Physics 110, 093503 (2011) and may be found at https://doi.org/10.1063/1.3656987.We report on fundamental structural and optical properties of lateral polarity junctions in GaN. GaN with Ga- to N-polar junctions was grown on sapphire using an AlN buffer layer. Results from scanning electron microscopy and Raman spectroscopy measurements indicate a superior quality of the Ga-polar GaN. An extremely strong luminescence signal is observed at the inversion domain boundary (IDB). Temperature dependent micro photoluminescence measurements are used to reveal the recombination processes underlying this strong emission. At 5 K the emission mainly arises from a stripe along the inversion domain boundary with a thickness of 4-5 μm. An increase of the temperature initially leads to a narrowing to below 2 μm emission area width followed by a broadening at temperatures above 70 K. The relatively broad emission area at low temperatures is explained by a diagonal IDB. It is shown that all further changes in the emission area width are related to thermalization effects of carriers and defects attracted to the IDB. The results are successfully used to confirm a theoretical model for GaN based lateral polarity junctions. Due to the strong and pronounced emission of IDBs even at elevated temperatures, it is demonstrated that lateral polarity junctions exhibit a strong potential for future high efficiency devices.DFG, 43659573, SFB 787: Halbleiter - Nanophotonik: Materialien, Modelle, Bauelement

The free wreath product of a compact quantum group by a quantum automorphism group

Let $\mathbb{G}$ be a compact quantum group and $\mathbb{G}^{aut}(B,\psi)$ be the quantum automorphism group of a finite dimensional C*-algebra $(B,\psi)$. In this paper, we study the free wreath product $\mathbb{G}\wr_{*} \mathbb{G}^{aut}(B,\psi)$. First of all, we describe its space of intertwiners and find its fusion semiring. Then, we prove some stability properties of the free wreath product operation. In particular, we find under which conditions two free wreath products are monoidally equivalent or have isomorphic fusion semirings. We also establish some analytic and algebraic properties of $\mathbb{G}\wr_{*} \mathbb{G}^{aut}(B,\psi)$. As a last result, we prove that the free wreath product of two quantum automorphism groups can be seen as the quotient of a suitable quantum automorphism group.Comment: 40 pages, version 2: some statements improved, general presentation improve

On entanglement-assisted classical capacity

This paper is essentially a lecture from the author's course on quantum information theory, which is devoted to the result of C. H. Bennett, P. W. Shor, J. A. Smolin and A. V. Thapliyal (quant-ph/0106052) concerning entanglement-assisted classical capacity of a quantum channel. A modified proof of this result is given and relation between entanglement-assisted and unassisted classical capacities is discussed.Comment: 10 pages, LATE