Optical characterization and defect-induced behavior in ZnAl1.999Ho0.001O4 spinel: Unraveling novel insights into structure, morphology, and spectroscopic features.

The ZnAl1.999Ho0.001O4 phosphor, prepared by the solid-state method, crystallizes in the cubic spinel structure. Morphology and chemical composition homogeneity were determined via Energy Dispersive X-ray and SEM analysis. The (Eg) optical band gap was evaluated from the UV/vis absorption spectrum, confirming direct transition behavior according to Tauc's law. The Urbach energy (Eu) in the ZnAl1.999Ho0.001O4 spinel was higher than that in the ZnAl2O4 spinel, indicating increased disorder and a higher concentration of defects due to Ho3+ ions. The penetration depth (δ(λ)), optical extinction (k(λ)), and refractive index (n(λ)) were assessed across wavelengths (λ). The room temperature absorption spectrum revealed several peaks corresponding to the 4f-4f transitions of Ho3+ ions.

Comprehensive characterization and optoelectronic significance of Ho3+ and Cr3+ Co-doped ZnAl2O4 spinels.

The spinels ZnAl1.99-xHoxCr0.01O4 (with x = 0 and 0.001) were synthesized using a solid-state method, and various techniques were employed for their characterization. X-ray diffraction (XRD) analysis confirmed a cubic spinel structure with the Fd3̄m space group for both spinels. The morphology and homogeneity of the chemical composition were determined using scanning electron microscopy (SEM) and energy dispersive X-ray analysis. Raman and infrared vibrational spectroscopy techniques were also employed for analysis. The optical band gap (Eg) was determined from UV/vis absorption spectra, and the direct transition behavior was confirmed by Tauc's law. The observed large disorder and defect concentration are attributed to the presence of Cr3+ and Ho3+ ions, explaining this behavior. The electron paramagnetic resonance (EPR) measurement presented different types of traps. Room temperature absorption spectra exhibited multiple peaks corresponding to the 3d-3d and 4f-4f transitions of Cr3+ and Ho3+ ions. The results obtained validate the significance of our compounds in optoelectronic device applications.

A Customized System to Test Pelvic Floor Muscles Contraction: A Proof of Concept.

Studies show that there is a high prevalence of pelvic floor dysfunctions which negatively affect the quality of life of people who suffer from them. The few sensory mechanisms that pelvic floor muscles have to inform the brain of their situation can make it difficult to perform voluntary contractions or identify risk factors. Currently, there is no consensus to improve this proprioception. This work introduces the development of a novel intravaginal device that is connected to a mobile data acquisition system and able to discern the correct contraction of the pelvic floor muscles versus contraction of adjacent muscles or abdominal thrust efforts. A cross-sectional pilot clinical study has been carried out to validate this end with healthy adult nulliparous woman with good pelvic floor muscles contraction capability in supine position.Clinical relevance- The proposed system allows a personalized and real-time assessment of the contractile capability of the pelvic floor muscles (PFM), distinguishing between muscular plans (deep/superficial PFM), between sides (right/left PFM), and between pressures from the PFM and intra-abdominal muscles (IAP). The development of an intravaginal device which is able to simultaneously measure all these features is an important advancement in this field since it can provide information in real time on the contraction capability of all the PFM as well as on the influence of the IAP during different PFM exercises.

Cuidados en los últimos días de vida en los pacientes hospitalizados en medicina interna / End-of-life care for patients hospitalised in internal medicine departments

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Limitación del esfuerzo terapéutico en pacientes mayores / Limitation of therapeutic effort in elderly patients

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Fullerene size controls the selective complexation of [11]CPP with pristine and endohedral fullerenes.

The ability of the carbon nanoring [11]cycloparaphenylene ([11]CPP) for coordinating fullerenes has been tested using a series of hosts, including the pristine fullerenes C60, C70, C76 and C78, the clusterfullerene Sc3N@C80, monometallic endofullerenes Y@C82 and Tm@C82, and dimetallic endofullerenes Y2@C82 and Lu2@C82. A systematic theoretical study employing dispersion corrected density functional methods has been carried out in order to explore the characteristics of the complexes and the strength of the interaction. Depending on the dimer, complexation energies span from around -36 kcal mol-1 with C60 to -53 kcal mol-1 with the C82 derivatives. Dispersion is the main stabilizing contribution in these dimers, so the molecules arrange to maximize the number of close interatomic contacts. Since most fullerenes can properly fill the cavity of the nanoring the stability of the complexes is pretty similar, with the exception of the smallest fullerenes. The complexes with endohedral fullerenes show similar stabilities in all cases studied, with no noticeable dependence on the nature of the endohedral species. The results obtained suggest that fullerenes larger than C76 could be selectively encapsulated by [11]CPP compared to smaller fullerenes.

Hallazgo incidental de trombo en foramen oval permeable en un paciente con tromboembolismo pulmonar masivo / Incidental finding of thrombus in patent foramen ovale in patient with major pulmonary embolism

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Acessibilidade ao pré-natal e fatores de risco nas parturientes do Hospital do Servidor Público Municipal de São Paulo / Access to pre-natal and risk factors in parturing women at the Hospital do Servidor Público Municipal de São Paulo

• Resumo Foi realizado análise de prontuários das parturientes a termo do Hospital do Servidor Público Municipal de São Paulo (HSPM) durante o ano de 2017, contabilizado e avaliado o número de consultas de pré-natal durante toda a gestação baseado no consenso estabelecido pela Organização Mundial de Saúde (OMS) de no mínimo oito encontros de pré-natal ao qual reduz o risco de morbidade materna e perinatal. A partir do número de consultas, as parturientes foram subdivididas por idade, raça, quantidade gestacional e se a assistência ao pré-natal foi feita no Hospital do Servidor e descentralizados (Funcionárias) ou externamente (Munícipes/SUS). O número total de parturientes foi de 997, destas 331 apresentaram menos de oito consultas de pré-natal no momento do parto, o que corresponde a 33,1% de todos os partos a termo do HSPM. A partir destes dados obteve-se a conclusão de que as pacientes provenientes do Sistema Único de Saúde (SUS), multigestas, maiores de 18 anos, amarelas e indígenas apresentam riscos maiores à não acessibilidade ao pré-natal e portanto, necessitam de intervenções para a melhoria à acessibilidade. Palavras chaves: pré-natal, acessibilidade, primigesta, multigesta, raça, idade, Sistema Único de Saúde.

Acessibilidade ao pré- natal e fatores de risco nas parturientes do HSPM / Prenatal accessibility and risk factors in HSPM parturients

Foi realizado análise de prontuários das parturientes a termo do Hospital do Servidor Público Municipal de São Paulo (HSPM) durante o ano de 2017, contabilizado e avaliado o número de consultas de pré-natal durante toda a gestação baseado no consenso estabelecido pela Organização Mundial de Saúde (OMS) de no mínimo oito encontros de pré-natal ao qual reduz o risco de morbidade materna e perinatal. A partir do número de consultas, as parturientes foram subdivididas por idade, raça, quantidade gestacional e se a assistência ao pré-natal foi feita no Hospital do Servidor e descentralizados (Funcionárias) ou externamente (Munícipes/SUS). O número total de parturientes foi de 997, destas 331 apresentaram menos de oito consultas de pré-natal no momento do parto, o que corresponde a 33,1% de todos os partos a termo do HSPM. A partir destes dados obteve-se a conclusão de que as pacientes provenientes do Sistema Único de Saúde (SUS), multigestas, maiores de 18 anos, amarelas e indígenas apresentam riscos maiores à não acessibilidade ao pré-natal e portanto, necessitam de intervenções para a melhoria à acessibilidade.

A theoretical study of complexes between fullerenes and concave receptors with interest in photovoltaics.

The complexation of the pristine fullerenes C60 and C70 and the endohedral fullerenes Sc3N@C80 and Sc3N@C68 has been tested using a series of hosts of different nature, including the buckybowls corannulene and sumanene, a zinc porphyrin, a chloro boron subphthalocyanine, and a corannulene pentasubstituted with nitrile groups. A systematic theoretical study has been carried out in order to explore both the strength of the interaction and the feasibility for electron transfer of the dimers. Dispersion is the main stabilizing contribution in these dimers, so both molecules orientate so as to maximize the number of close contacts among atoms. As a consequence, all host molecules interact with C70 by the long axis. C60 and Sc3N@C80 are more spherically shaped, so there is no clear preference for the position of the host molecule, though endohedral fullerenes are encapsulated preferentially by the face without contacts with the inner cluster. Complexation energies increase with the contact surface between molecules in the complex. The most stable complexes with fullerenes are formed by the subphthalocyanine and the CN-pentasubstituted corannulene. Depending on the dimer, complexation energies span from around -15 kcal mol-1 of C60 with corannulene to -24 kcal mol-1 of Sc3N@C80 with the subphthalocyanine. Some of the dimers seem to be capable of acting as a donor-acceptor pair, leading to charge transfer states with a neat separation of charge, thus being candidates for organic photovoltaic devices. Endohedral fullerenes are less prone to these donor-acceptor transitions, with charge transfer taking place from the carbon cage to the endohedral cluster. cora5CN, with its inverted polarity, also shows charge transfer upon excitation but with the fullerene acting as a donor and the buckybowl as an acceptor.

Limitación del esfuerzo terapéutico en pacientes hospitalizados en el servicio de medicina interna / Withholding and whithdrawing treatment in patients admitted in an internal medicine ward

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Sistema simple para el control de fístula enteroatmosférica de alto gasto. Presentación de un caso / Simple system for the control of enteroatmosférica fistulae of high-flow. Case report

El fantasma de las fistula entéricas, persigue al cirujano, provocando momentos de desvelos y horas de dedicación. Se denomina fístula a un trayecto cuyas paredes están formadas generalmente por tejido de granulación y que comunica dos superficies revestidas de epitelio. Cuando esta comunicación se produce entre una víscera y la piel se denomina fístula enterocutánea y a su vez cuando la salida del contenido intestinal se vierte directamente a la atmósfera es denominada enteroatmosférica. Se presenta un caso, el cual presenta fistulas enteroatmosféricas de alto gasto, una de intestino delgado (yeyuno) y otra en colon transverso. La de intestino delgado cerró a las 12 semanas, pero la del transverso no ha cerrado aún, a pesar del tratamiento médico el paciente mantuvo el alto gasto, por lo cual se ideo un instrumento para restituir el tránsito intestinal y disminuir la contaminación de la pared abdominal

The ghost of the enteroatmospheric fistulae, pursues the surgeon, causing moments of troubles and hours of dedication. Fistula is defined as an abnormal communication between the small or large bowel and the skin and generally formed by granulation fabric and that it communicates two lined surfaces of epithelium. When this communication takes place between a viscera and the skin it is denominated enterocutánea fistula and in turn when the exit of the intestinal content spills to the atmosphere directly enteroatmosférica it is denominated. A case is presented, which presents fistula enteroatmosféricas of high expense, one of thin intestine (yeyuno) and another in transverse colon. That of thin intestine closed to the 12 weeks, but that of the transverse one has not still closed, in spite of the medical treatment the patient maintained the high expense, reason why one devises an instrument to restore the intestinal traffic and to diminish the contamination of the abdominal wall

Anemia perniciosa: ferritina normal y un posible déficit de hierro oculto / Pernicious anemia: normal ferritin levels and possible hidden iron deficiency

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