A series of nanocomposite (NC) powders and coatings of ZnO–GeO2–TeO2:xSm3+ glass and Y3Al5O12:Ce3+ nanoparticles (YAG:Ce) are fabricated. Samarium ions concentration of the glass phosphor is varied ...with x values of 0.3, 1.0, 3.0, and 5.0 mol%. The powder batches are prepared with a 95/5 mass ratio of glass/YAG:Ce and uniaxially pressed to obtain powder pellets that are heat‐treated at 350 °C. Morphology and structural characterization are conducted through X‐ray diffraction analysis, scanning electron microscopy, and Raman spectroscopy. The photoluminescence properties of NCs are investigated under different wavelengths of 340, 403, and 460 nm, showing a global emission tonality in the reddish‐orange and yellowish‐green region according to the estimated CIE 1931 chromaticity coordinates. Also, NC coatings soda–lime glass slides are fabricated, and their photoluminescence is characterized using an UV light‐emitting chip (≈365 nm) and a blue light‐emitting chip (≈460 nm). The global emission under UV and blue light from the light‐emitting diode (LED) chips of the NC coatings shows a color tunability in the warm white light and yellowish‐green region.
A series of nanocomposite powders and glass coatings are fabricated using an Sm3+‐doped tellurite glass and YAG:Ce3+ nanoparticles as red and yellowish‐green phosphors. The photoluminescence of the powders evidences a resonant radiative transfer between ions. The glass coatings present tunable emission in the warm white region under a UV and blue light‐emitting diodes (LEDs) excitation.
The paediatric Gait, Arms, Legs and Spine (pGALS) musculoskeletal examination tool is validated for use in school-aged English Speaking children and shown to be practical and effective in acute ...paediatric practice in the UK and Malawi. Our aim was to assess the acceptability and practicality of a Spanish translation of pGALS in an acute paediatric setting in Peru.
Fifty-three school-aged children presenting to Hospital Regional de Loreto, Peru were recruited to undergo a pGALS examination using a Spanish translation of the instructions. The pGALS examination was completed in 92.5% (49/53), with the time taken (median 4.42 minutes) being acceptable to most parents (98.1%, 52/53). Most children (88.7%, 47/53), found the pGALS examination caused 'little' or 'no additional discomfort'. Using pGALS, significant findings were observed in 18/53 (34%) children; these related to fractures (4/18), hypermobility (4/18), infectious causes (5/18) and soft tissue trauma (5/18).
Using this Spanish translation, pGALS assessment was practical, acceptable and effective in detecting musculoskeletal changes in many children.
The implementation of artificial intelligence brings with it a great change in health care, however, there is a discrepancy about the perceptions and attitudes that dental students present towards ...these new technologies.
The study design was observational, descriptive, and cross-sectional. A total of 200 dental students who met the inclusion criteria were surveyed online. For the qualitative variables, descriptive statistical measures were obtained, such as absolute and relative frequencies. For the comparison of the main variables with the type of educational institution, sex and level of education, the chi-square test or Fisher's exact test was used according to the established assumptions with a level of statistical significance of
< 0.05 and a confidence level of 95%.
The results indicated that 86% of the students surveyed agreed that artificial intelligence will lead to great advances in dentistry. However, 45% of the participants disagreed that artificial intelligence would replace dentists in the future. In addition, the respondents agreed that the use of artificial intelligence should be part of undergraduate and postgraduate studies with 67% and 72% agreement rates respectively.
The attitudes and perceptions of the students indicate that 86% agreed that artificial intelligence will lead to great advances in dentistry. This suggests a bright future for the relationship between dentists and artificial intelligence.
A series of nanocomposites of recycled soda‐lime glass from a glass container and Y3Al5O12:Ce3+ (YAG:Ce) phosphor nanoparticles are fabricated by the two‐step low‐temperature co‐sintering technology. ...A transparent glass bottle from a commercial beverage is used as glass frit source and mixed with YAG:Ce nanoparticles. Afterward, the powders are pressed to obtain pellets with phosphor concentrations in the range of 2.5–15 wt%. The pellets are sintered at 800 and 900 °C. X‐ray diffraction (XRD) analysis shows that YAG:Ce nanoparticles are conserved even after sintering at 900 °C. The XRD analysis shows that YAG:Ce nanoparticles are conserved even after sintering at 900 °C. The emission spectra of the Ce3+ ions of yttrium aluminum garnet (YAG) nanoparticles combined with the transmitted blue light exhibit color tuning related to the phosphor concentration and the sintering temperature. A tonality shift from cold‐white light toward yellowish‐green region is observed according to the estimated CIE 1931 chromaticity. Thus, recycled glass from a commercial glass container and YAG:Ce nanoparticles phosphor‐in‐glass (PiG) can be an eco‐friendly and low‐cost alternative as color converters.
A commercial glass container frit is used to fabricate Ce‐doped‐Y3Al5O12 (YAG:Ce3+) nanoparticles phosphor‐in‐glass (PiG). Phosphor nanoparticles resisted high sintering temperatures. PiGs pumped with a blue‐light‐emitting diode (LED) show a tunable white global emission depending on the phosphor content and sintering temperature, revealing an alternative to use commercial glass containers as phosphor encapsulants for white light‐emitting diode (WLED) applications.
The research was carried out from the qualitative approach, the ethnographic method represented the main research strategy for approaching the phenomenon, through the application of observation, the ...interview, as well as the transfer and countertransference techniques of information. The article focuses on the perspective of Mayangnas students in relation to the challenges of higher education, both academic and cultural, and the need to resize the educational practice of teaching - learning in favor of the socio-historical and cultural recognition of the classroom as a space. intercultural. The text represents an approach to the production of intercultural spaces from the perspective of the research subjects, which could shed light on the processes of academic transformation, but, above all, on the pertinent treatment of students of ethnic origins.
La investigación se realizó desde el enfoque cualitativo, el método etnográfico representó la principal estrategia de investigación para el acercamiento al fenómeno, mediante la aplicación de la observación, la entrevista, así también las técnicas de transferencia y contratransferencia de la información. El artículo se enfoca en la perspectiva de los estudiantes Mayangnas en relación a los retos de la educación superior tanto académicos como culturales y la necesidad de redimensionar la práctica educativa de enseñanza - aprendizaje en pro del reconocimiento socio-histórico, y cultural del aula como espacio intercultural. El texto representa un acercamiento a la producción de espacios interculturales desde la óptica de los sujetos de investigación, que podría brindar luces de cara a los procesos de transformación académica, pero, sobre todo, al tratamiento pertinente a estudiantes de orígenes étnicos.
In Peru, 11% of deaths are due to trauma. Iquitos is a large underserved Peruvian city isolated from central resources by its geography. Our objective was to implement a locally driven trauma ...registry to sustainably improve trauma healthcare in this region.
All trauma patients presenting to the main regional referral hospital were included in the trauma registry. A pilot study retrospectively analyzed data from the first two months after implementation.
From March to April 2013, 572 trauma patients were entered into the database. Average age was 26.9 years. Ten percent of patients presented more than 24 hours after injury. Most common mechanisms of injury were falls (25.5%), motor vehicle collisions (23.3%), and blunt assault (10.5%). Interim analysis revealed that 99% of patients were entered into the database. However, documentation of vital signs was poor: 42% of patients had temperature, 26% had oxygen saturation documented. After reporting to registry staff, a significant increase in temperature (42 to 97%, P < 0.001) and oxygen saturation (26 to 92%, P < 0.001) documentation was observed.
A trauma registry is possible to implement in a resource-poor setting. Future efforts will focus on analysis of data to enhance prevention and treatment of injuries in Iquitos.
La presente investigación tiene como objetivo conocer la satisfacción de la población con respecto a la calidad del servicio de limpieza pública brindado por la Municipalidad Provincial del Callao, ...para el año 2021. La metodología empleada fue la técnica de recolección de datos a través de encuestas. Los resultados mostraron que la población encuestada considera tener un nivel de servicio de limpieza, barrido y recolección de residuos, predominantemente, de Regular y Mala calidad. Con respecto al nivel de limpieza, se registró que los parques y mercados cuentan con un nivel aceptable. Asimismo, los vecinos calificaron con un nivel Muy malo el servicio de recolección diferenciada. Además, se identificó que más del 50% de la población encuestada no cumple con su obligación de pagar los arbitrios municipales y esta acción repercute en la recaudación de arbitrios en la Municipalidad del Callao, debido a que no permite cubrir la totalidad de los gastos de la prestación del servicio de limpieza pública. Finalmente, existe una brecha de calidad de servicio que debe ser atendida por la Municipalidad mediante la implementación de un adecuado plan de gestión de residuos y programas de sensibilización y educación ambiental, para que la población actúe de forma responsable y así se logre mejorar el nivel de servicio de limpieza pública.
Background: Forensic dentistry identification commonly involves using dental cast models as ante-mortem data. Here, dentists generally send the pictures as well as the dental records. However, in ...recent times, dentists – especially orthodontists and prosthodontists – are using 3D scanners in view of reducing the space for cast model storage as well as sending the 3D imaging for fabricating clear aligners and other items such as crowns and bridges. This new trend means data transmission and viewing has become more complicated since sophisticated laptops or personal computers are generally required. For more practical use, smartphones would be a better option, meaning various simple ideas for viewing 3D data must be explored. Furthermore, the conclusions must be evaluated in terms of the validity for forensic dentistry use. Purpose: To evaluate a number of smartphone applications that are simple, user friendly, scalable and capable of the measurement and superimposition of 3D imaging data. Review: Standard tessellation language (STL) is one of the 3D scan file formats that is also useful for 3D printing. Recently, several applications for 3D viewing have been made available for iPhones (iOS) and Android-based devices, which are able to view STL files. However, they have all received both positive and negative reviews in terms of various applications, including forensic dentistry, and they thus require further evaluation by forensic odontologists. Conclusion: Each application has advantages and disadvantages; however, in our experience as forensic odontologists, the CAD Assistant, exocad and Adobe Photoshop Mix, which are available for iOS and Android devices, are preferable for forensic dentistry needs
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