2,485 research outputs found
Arquitectura de un Juego en 2D para Android y IOS Usando Cocos2DX
This paper we present the architecture and tools used in the development a 2D game that works on both Android and IOS. To do this we use the Cocos2DX, this tool allows to development 2D game with portability and power required to run on these two mobile environments used. It is important to note that the article also shows how modeled and implemented in Cocos 2DX a game, called 2D Labyrinth, this serves to illustrate how Cocos2DX handles all processing OpenGL graphics and thus no problems when running submitted in various mobile devices. And finally, we show the game operation using the proposed architecture and tools.El presente artículo muestra la arquitectura y las herramientas usadas en el desarrollo de un juego 2D que funciona tanto en Android y IOS. Para ello se usa la herramienta Cocos2DX la cual permite el desarrollo de juegos 2D que tienen la portabilidad y potencia necesaria para ejecutarse en estos dos ambientes móviles. Es importante anotar que el artículo también muestra cómo se modeló e implementó un juego, llamado Laberinto 2D, en Cocos 2DX, esto sirve para ilustrar cómo Cocos2DX se ocupa de todo el procesamiento de gráficos OpenGL y de esta forma no se presenten inconvenientes al ejecutarse en diversos dispositivos móviles. Al final se muestra el funcionamiento del juego aplicando la arquitectura y las herramientas propuestas
Aplicación para procesamiento de imágenes metalográficas desde PME3
La información en forma de datos y medidas, suministrada por imágenesmetalográfi cas, es importante en la caracterización de materiales.La efi ciencia en el tratamiento de tal información, es crucialpara una exitosa gestión de laboratorio en ingeniería. Este artículo,muestra el análisis, desarrollo, e implementación de una aplicacióncomputacional, desarrollada enteramente en Java (netbeans versión6.8 “GNU”), que captura, edita (bordes, suavizados, realces, distancias,inversión de colores, escala de grises, brillo, zoom móvil y fi jo),y guarda imágenes metalográfi cas, proporcionadas por el microscopioOLYMPUS PME3®
Mind the numt: Finding informative mitochondrial markers in a giant grasshopper genome
H2020 Marie Sklodowska-Curie Actions, Grant/Award Number: 658706; Ministerio de Ciencia, Innovacion y Universidades, Grant/Award Number: PID2019-104952GB-I00/AEI/10.13039/501100011033The barcoding of the mitochondrial COX1 gene has been instrumental in cataloguing the tree of life, and in providing insights in the phylogeographic history of species. Yet, this strategy has encountered difficulties in major clades characterized by large genomes, which contain a high frequency of nuclear pseudogenes originating from the mitochondrial genome (numts). Here, we use the meadow grasshopper (Chorthippus parallelus), which possesses a giant genome of ~13 Gb, to identify mitochondrial genes that are underrepresented as numts, and test their use as informative phylogeographic markers. We recover the same full mitochondrial sequence using both whole genome and transcriptome sequencing, including functional protein‐coding genes and tRNAs. We show that a region of the mitogenome containing the COX1 gene, typically used in DNA barcoding, has disproportionally higher diversity and coverage than the rest of the mitogenome, consistent with multiple insertions of that region into the nuclear genome. By designing new markers in regions of less elevated diversity and coverage, we identify two mitochondrial genes that are less likely to be duplicated as numts. We show that, while these markers show high levels of incomplete lineage sorting between subspecies, as expected for mitochondrial genes, genetic variation reflects their phylogeographic history accurately. These findings allow us to identify useful mitochondrial markers for future studies in C. parallelus, an important biological system for evolutionary biology. More generally, this study exemplifies how non‐PCR‐based methods using next‐generation sequencing can be used to avoid numts in species characterized by large genomes, which have remained challenging to study in taxonomy and evolution.H2020 Marie Sklodowska-Curie Actions
658706Ministerio de Ciencia, Innovacion y Universidades
PID2019-104952GB-I00/AEI/10.13039/50110001103
Untargeted metabolomics and in vitro functional analysis unravel the intraspecific bioactive potential of flowers from underexplored Camellia japonica cultivars facing their industrial application
The Camellia genus comprises a vast array of underexplored medicinal plants that merit a systematic valorization
to exploit their potential as natural sources of phytochemicals with associated health-promoting properties. In
this work, flower extracts from eight poorly characterized Camellia japonica L. cultivars were subjected to
polyphenol profiling through untargeted metabolomics combined with in vitro functional analysis. Anthocyanins,
mostly represented by cyanidin 3-O-glycosides, flavones, and flavonols, were found as the major constituents of
C. japonica flowers, together with hydroxycinnamic acids, tyrosols, alkylphenols, and stilbenes, which were
detected for the first time in this species. The application of multivariate statistics revealed a flower colordependent
fingerprint of C. japonica cultivars, featuring anthocyanins and other flavonoids as metabolite
markers associated with color-flowered cultivars with respect to white-flowered ones. The accumulation of anthocyanins,
especially reported in ‘Eugenia de Montijo’ flowers, was highly correlated with the cytotoxic and
anti-inflammatory properties of the derived extracts, including AGS, Caco-2, and MCF7 cancer cell lines.
Moreover, the flavones accumulation reported in ‘Carolyn Tuttle’ extracts was also associated with high rates of
free-radical scavenging activity, as well as a potent cytotoxicity against the Caco-2 cell line. In general,
C. japonica anthocyanin-enriched flower extracts were revealed as promising candidates for the industrial production
of polyphenols with associated biological activities of high interest for critical sectors in the food,
pharmaceutical, and cosmetic industries.The research leading to these results was supported by MICINN
supporting the Ramón y Cajal grant for M.A.-P. (RYC-2017–22891) and
the Juan de la Cierva Formación grant for T.-O. (FJC2019–042549-I).
The authors acknowledge Xunta de Galicia for funding the post-doctoral
grant of L. C. (ED481B-2021/152) and the program EXCELENCIAED431F
2020/12, which supported the work by F.C. The authors are
also grateful to the Foundation for Science and Technology (FCT,
Portugal) for financial support through national funds FCT/MCTES
(PIDDAC) to CIMO (UIDB/00690/2020 and UIDP/00690/2020) and
SusTEC (LA/P/0007/2020), and national funding by FCT, P.I., through
the institutional scientific employment program contract for L.-B. and R.
C.-C. The work by P.G.-P. was financed by the Spanish Ministry of
Universities under the application 33.50.460A.752 and by the European
Union NextGenerationEU/PRTR through a Margarita Salas contract by
the Universidade de Vigo.info:eu-repo/semantics/publishedVersio
Diversity and ethics in trauma and acute care surgery teams: results from an international survey
Background Investigating the context of trauma and acute care surgery, the article aims at understanding the factors that can enhance some ethical aspects, namely the importance of patient consent, the perceptiveness of the ethical role of the trauma leader, and the perceived importance of ethics as an educational subject. Methods The article employs an international questionnaire promoted by the World Society of Emergency Surgery. Results Through the analysis of 402 fully filled questionnaires by surgeons from 72 different countries, the three main ethical topics are investigated through the lens of gender, membership of an academic or non-academic institution, an official trauma team, and a diverse group. In general terms, results highlight greater attention paid by surgeons belonging to academic institutions, official trauma teams, and diverse groups. Conclusions Our results underline that some organizational factors (e.g., the fact that the team belongs to a university context or is more diverse) might lead to the development of a higher sensibility on ethical matters. Embracing cultural diversity forces trauma teams to deal with different mindsets. Organizations should, therefore, consider those elements in defining their organizational procedures. Level of evidence Trauma and acute care teams work under tremendous pressure and complex circumstances, with their members needing to make ethical decisions quickly. The international survey allowed to shed light on how team assembly decisions might represent an opportunity to coordinate team member actions and increase performance
Perspectives on the diagnosis and management of functional cognitive disorder: An international Delphi study
Background: Current proposed criteria for functional cognitive disorder (FCD) have not been externally validated. We sought to analyse the current perspectives of cognitive specialists in the diagnosis and management of FCD in comparison with neurodegenerative conditions. Methods: International experts in cognitive disorders were invited to assess seven illustrative clinical vignettes containing history and bedside characteristics alone. Participants assigned a probable diagnosis and selected the appropriate investigation and treatment. Qualitative, quantitative and inter-rater agreement analyses were undertaken. Results: Eighteen diagnostic terminologies were assigned by 45 cognitive experts from 12 countries with a median of 13 years of experience, across the seven scenarios. Accurate discrimination between FCD and neurodegeneration was observed, independently of background and years of experience: 100% of the neurodegenerative vignettes were correctly classified and 75%–88% of the FCD diagnoses were attributed to non-neurodegenerative causes. There was <50% agreement in the terminology used for FCD, in comparison with 87%–92% agreement for neurodegenerative syndromes. Blood tests and neuropsychological evaluation were the leading diagnostic modalities for FCD. Diagnostic communication, psychotherapy and psychiatry referral were the main suggested management strategies in FCD. Conclusions: Our study demonstrates the feasibility of distinguishing between FCD and neurodegeneration based on relevant patient characteristics and history details. These characteristics need further validation and operationalisation. Heterogeneous labelling and framing pose clinical and research challenges reflecting a lack of agreement in the field. Careful consideration of FCD diagnosis is advised, particularly in the presence of comorbidities. This study informs future research on diagnostic tools and evidence-based interventions
A search for ultra-high-energy photons at the Pierre Auger Observatory exploiting air-shower universality
The Pierre Auger Observatory is the most sensitive detector to primary photons with energies above ∼0.2 EeV. It measures extensive air showers using a hybrid technique that combines a fluorescence detector (FD) with a ground array of particle detectors (SD). The signatures of a photon-induced air shower are a larger atmospheric depth at the shower maximum (X) and a steeper lateral distribution function, along with a lower number of muons with respect to the bulk of hadron-induced background. Using observables measured by the FD and SD, three photon searches in different energy bands are performed. In particular, between threshold energies of 1-10 EeV, a new analysis technique has been developed by combining the FD-based measurement of X with the SD signal through a parameter related to its muon content, derived from the universality of the air showers. This technique has led to a better photon/hadron separation and, consequently, to a higher search sensitivity, resulting in a tighter upper limit than before. The outcome of this new analysis is presented here, along with previous results in the energy ranges below 1 EeV and above 10 EeV. From the data collected by the Pierre Auger Observatory in about 15 years of operation, the most stringent constraints on the fraction of photons in the cosmic flux are set over almost three decades in energy
Study on multi-ELVES in the Pierre Auger Observatory
Since 2013, the four sites of the Fluorescence Detector (FD) of the Pierre Auger Observatory record ELVES with a dedicated trigger. These UV light emissions are correlated to distant lightning strikes. The length of recorded traces has been increased from 100 μs (2013), to 300 μs (2014-16), to 900 μs (2017-present), to progressively extend the observation of the light emission towards the vertical of the causative lightning and beyond. A large fraction of the observed events shows double ELVES within the time window, and, in some cases, even more complex structures are observed. The nature of the multi-ELVES is not completely understood but may be related to the different types of lightning in which they are originated. For example, it is known that Narrow Bipolar Events can produce double ELVES, and Energetic In-cloud Pulses, occurring between the main negative and upper positive charge layer of clouds, can induce double and even quadruple ELVES in the ionosphere. This report shows the seasonal and daily dependence of the time gap, amplitude ratio, and correlation between the pulse widths of the peaks in a sample of 1000+ multi-ELVES events recorded during the period 2014-20. The events have been compared with data from other satellite and ground-based sensing devices to study the correlation of their properties with lightning observables such as altitude and polarity
- …