961,728 research outputs found
Relative Humidity on Mars: New Results From the Phoenix TECP Sensor
Full text linkIn situ measurements of relative humidity (RH) on Mars have only been performed by the Phoenix (PHX) and Mars Science Laboratory (MSL) missions. Here we present results of our recalibration of the PHX thermal and electrical conductivity probe (TECP) RH sensor. This recalibration was conducted using a TECP engineering model subjected to the full range of environmental conditions at the PHX landing site in the Michigan Mars Environmental Chamber. The experiments focused on the warmest and driest conditions (daytime) because they were not covered in the original calibration (Zent et al., 2010, https://doi.org/10.1029/2009JE003420) and previous recalibration (Zent et al., 2016, https://doi.org/10.1002/2015JE004933). In nighttime conditions, our results are in excellent agreement with the previous 2016 recalibration, while in daytime conditions, our results show larger water vapor pressure values. We obtain vapor pressure values in the range ~0.005–1.4 Pa, while Zent et al. (2016, https://doi.org/10.1002/2015JE004933) obtain values in the range ~0.004–0.4 Pa. Our higher daytime values are in better agreement with independent estimates from the ground by the PHX Surface Stereo Imager instrument and from orbit by Compact Reconnaissance Imaging Spectrometer for Mars. Our results imply larger day‐to‐night ratios of water vapor pressure at PHX compared to MSL, suggesting a stronger atmosphere‐regolith interchange in the Martian arctic than at lower latitudes. Further, they indicate that brine formation at the PHX landing site via deliquescence can be achieved only temporarily between midnight and 6 a.m. on a few sols. The results from our recalibration are important because they shed light on the near‐surface humidity environment on Mars.Key PointsWe have recalibrated the relative humidity sensor of the Mars Phoenix landerWe obtain water vapor pressure values in the range ~0.005–1.4 Pa, while in previous recalibrations, values in the range ~0.004–0.4 PaOur results show a two‐order‐of‐magnitude diurnal variation of water vapor pressure, suggesting a strong atmosphere‐regolith interchangePlain Language SummaryWe present our recalibration of Phoenix’s humidity sensor. This recalibration was conducted with a copy of the sensor subjected to the environmental conditions at the Phoenix landing site. Our experiments focus on the warmest and driest conditions because they were not covered in previous calibrations. Our recalibration shows daytime water content values one order of magnitude larger than those in the previous calibration. At nighttime conditions, our results are in excellent agreement with the previous calibration. Our higher daytime values are in better agreement with independent estimates from the ground, and from orbit. Our results imply larger diurnal variations of water content at Phoenix compared to Curiosity, suggesting a stronger atmosphere‐soil interchange in the Martian arctic than at lower latitudes. Further, they indicate that environmental conditions favorable for the formation of saline solutions (brine) are only achieved temporarily between midnight and 6 a.m. on a few Martian days. The results from our recalibration are important because measurements of humidity on the Martian surface are needed to shed light on the local and global water cycle of Mars, and so far, only the Phoenix mission in the arctic region and the Curiosity rover at equatorial latitudes have performed such measurements.Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/153252/1/jgre21230.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/153252/2/jgre21230_am.pd
Relationship between healthy eating and learning of boys and girls in initial education at the CEI Martín González of the Cayambe canton-Ecuador
No full textEmergentes -Revista Científica, Paraguay.ISSN 2959-7692 (en línea) Enero-Marzo, 2024, Volumen 4, Número 1 pág. 390DOI:https://doi.org/10.60112/erc.v4i1.120Relación entre la alimentación saludable y el aprendizaje de los niños y niñas de educación Inicial del CEI Martín González del cantón Cayambe-EcuadorKennedy Rolando Lomas Tapia [email protected]://orcid.org/0000-0001-7680-2913Doctor, Universidad Técnica del Norte, EcuadorCarmenAmelia [email protected]://orcid/org/0000-0002-0320-707XDoctora, Universidad Técnica del Norte, EcuadorLcda. Ximena [email protected]://orcid.org/0000-0001-7868-1246Msc. Universidad Técnica del Norte, EcuadorMargrathe Yolanda Paz Alcí[email protected]://orcid.org/0000-0002-0920-7230Universidad Técnica del NorteRESUMENLa relación entre la alimentación y el aprendizaje,tiene como finalidad, determinar la importancia de la alimentación y como incide en el aprendizaje de los niños del Ecuador. Para dar cumplimiento los objetivos planteados se aplicó instrumentos de investigación, Identificar los alimentos que contribuyen a la alimentación saludable. Describir la importancia de la alimentación para el apropiado desarrollo de los aprendizajes en los infantes del nivel Inicial es uno de los objetivos planteados para complementarlos con la indagación a las familias y docentes de Educación inicial acerca de las apropiadas prácticas alimentarias con los niños a través de técnicas de entrevistas para concluir la importancia de concienciar a las familias del nivel Inicial cobre el consumo de alimentos saludables que le servirán para su desarrollo intelectual y físico del infante.N/AThe relationship between food and learning aims to determine the importance of food and how it affects the learning of children in Ecuador. To achieve the stated objectives, research instruments were applied to identify foods that contribute to healthy eating. Describing the importance of nutrition for the appropriate development of learning in infants at the Initial level is one of the objectives proposed to complement them with the inquiry of families and teachers of Early Education about appropriate feeding practices with children through interview techniques to conclude the importance of raising awareness among families at the initial level about the consumption of healthy foods that will serve the intellectual and physical development of the infan
The role of trust in health-seeking for non-communicable disease services in fragile contexts: A cross-country comparative study
Full text linkStella Arakelyan - ORCID: 0000-0003-0326-707X
https://orcid.org/0000-0003-0326-707XArek Dakessian - ORCID: 0000-0001-7792-6862
https://orcid.org/0000-0001-7792-6862Karin Diaconu - ORCID: 0000-0002-5810-9725
https://orcid.org/0000-0002-5810-9725Lizzie Caperon - ORCID: 0000-0001-5204-170X
https://orcid.org/0000-0001-5204-170XAlison Strang - ORCID: 0000-0003-3064-5283
https://orcid.org/0000-0003-3064-5283Sophie Witter - ORCID: 0000-0002-7656-6188
https://orcid.org/0000-0002-7656-6188Alastair Ager - ORCID: 0000-0002-9474-3563
https://orcid.org/0000-0002-9474-3563Replaced AM with VoR 2021-10-21Non-communicable diseases (NCDs) disproportionately affect people living in fragile contexts marked by poor governance and health systems struggling to deliver quality services for the benefit of all. This combination can lead to the erosion of trust in the health system, affecting health-seeking behaviours and the ability of individuals to sustain their health. In this cross-country multiple-case study, we analyse the role of trust in health-seeking for NCD services in fragile contexts. Our analysis triangulates multiple data sources, including semi-structured interviews (n=102) and Group Model Building workshops (n=8) with individuals affected by NCDs and health providers delivering NCD services. Data were collected in Freetown and Makeni (Sierra Leone), Beirut and Beqaa (Lebanon), and Morazán, Chalatenango and Bajo Lempa (El Salvador) between April 2018 and April 2019. We present a conceptual model depicting key dynamics and feedback loops between contextual factors, institutional, interpersonal and social trust and health-seeking pathways. Our findings signal that firstly, the way health services are delivered and experienced shapes institutional trust in health systems, interpersonal trust in health providers and future health-seeking pathways. Secondly, historical narratives about public institutions and state authorities’ responses to contextual fragility drivers impact institutional trust and utilisation of services from public health institutions. Thirdly, social trust mediates health-seeking behaviour through social bonds and links between health systems and individuals affected by NCDs. Given the repeated and sustained utilisation of health services required with these chronic diseases, (re)building and maintaining trust in public health institutions and providers is a crucial task in fragile contexts. This requires interventions at community, district and national levels, with a key focus on promoting links and mutual accountability between health systems and communities affected by NCDs.This research was funded by the National Institute for Health Research (NIHR) Global Health Research programme 16/136/100.https://doi.org/10.1016/j.socscimed.2021.114473291pubpu
ORCID - Bhojaraju Gunjal - https://orcid.org/0000-0002-9658-1473
No full texthttps://orcid.org/0000-0002-9658-1473</a
Impact of leadership practices on manager’s pathways to goal attainment : the mediating effect of emotional intelligence
No full textPurpose
While the relationship between some leadership styles and emotional intelligence has been studied, leadership practices and emotional intelligence have not been studied for an understanding of how both variables enable a leader to look for pathwayhttps://orcid.org/0000-0002-7920-9602https://orcid.org/0000-0002-9618-1752https://orcid.org/0000-0001-8331-1098https://orcid.org/0000-0002-9716-3564https://orcid.org/0000-0002-2068-9963https://www.scopus.com/authid/detail.uri?authorId=55885349200https://www.scopus.com/authid/detail.uri?authorId=57194086451https://www.scopus.com/authid/detail.uri?authorId=57548576000https://www.scopus.com/authid/detail.uri?authorId=57194692649ht
The impact of emotional intelligence, cross-functional teams and interorganizational networks on operational effectiveness
No full textThis article aims to examine the influence of emotional intelligence on cross-functional teams, the formation of interorganizational networks and the impact of all three dimensions on operational effectiveness.https://orcid.org/0000-0003-2584-2928https://orcid.org/0000-0001-8385-4973https://orcid.org/0000-0003-4007-0508https://orcid.org/0000-0002-4113-5521https://www.scopus.com/authid/detail.uri?authorId=35243462500https://www.scopus.com/authid/detail.uri?authorId=57209661332https://www.scopus.com/authid/detail.uri?authorId=5639539080
Measuring a university's environmental performance : a standardized proposal for carbon footprint assessment
No full textThe global contribution of all kinds of organizations to greenhouse gas (GHG) emissions is noteworthy. Calculating, reporting, reducing, and compensating for carbon footprints are the appropriate steps to take to guide companies toward a path that is compatible with their country's objectives for the fulfillment of the Paris Agreement. In Latin American countries, carbon footprint reporting is limited and incipient. This paper aims to start closing this gap by assessing the carbon footprint of a university operating in the city of Bogotá, Colombia. Based on a city input-output table (IOT) nested in a multiregional input-output (MRIO) table framework, we estimate the three categories of the carbon footprint (scopes 1, 2, and 3) identified by the Greenhouse Gas Protocol using an improved multiregional tiered hybrid analysis of the university's energy and other input expenditures. Our results show that 94% of the entire institution's footprint is attributed to scope 3, which represents indirect emissions linked to the upstream value chain. The results allow us to identify emission hotspots and their impact on the supply chain, which can be helpful for reducing costs and encouraging organizations, users, and suppliers to make more sustainable decisions.https://orcid.org/0000-0002-2098-8525https://orcid.org/0000-0001-8622-7860https://orcid.org/0000-0001-6595-2799https://orcid.org/0000-0001-7953-9006https://www.scopus.com/authid/detail.uri?authorId=57202852455https://www.scopus.com/authid/detail.uri?authorId=57192420981https://www.scopus.com/authid/detail.uri?authorId=12761342500https://www.scopus.com/authid/detail.uri?authorId=5536305720
The evolution of the albedo of dark spots observed on Mars polar region
No full textWe present a methodology to remove atmospheric effects from High Resolution Imaging Science Experiment data in order to calculate the albedo of the martian surface in the near infrared (0.8–1
m), red (0.55–0.85
m), and blue green (0.4–0.6
m) spectral bands. The application of our methodology results in corrections of up to 20
in the albedo measured by the satellite. Time evolution of the surface albedo is used to study dark spots observed in Richardson Crater, on Mars south polar region. These dark spots form in late winter and vanish in late spring. They are of high scientific interest because they appear to be caused by the flow of granular material, liquid, or a combination of both. Besides images, the following data are used as ancillary information in our study: dust optical depth derived from measurements by the Thermal Emission Imaging System, the detection of the presence of either CO2 ice or H2O ice by the Compact Reconnaissance Imaging Spectrometers for Mars, surface pressure and temperature values derived from measurements by the Thermal Emission Spectrometer, and finally kinetic calculations and numerical modeling.This research is supported by a grant from the NASA Astrobiology Program: Exobiology and Evolutionary Biology. Award 09-EXOB09-0050.N
Closing the academy–Business gap by building intellectual capital in professional formation
No full textThe rapid advances in technology, market pressures, globalization, and, recently, the COVID-19 pandemic show the need to find educational models that respond to these realities while improving the employability levels of young people and promoting economic growth. This research analyzes how the professional formation model, where two learning spaces, the academy, and the company, are combined, promotes the closing of gaps and economic growth, through the development of intellectual capital that arises from this relationship, in an emerging economy such as Colombia.https://orcid.org/0000-0003-3056-1303https://orcid.org/0000-0003-2548-3232https://orcid.org/0000-0001-5572-4856https://orcid.org/0000-0002-1588-0624https://www.scopus.com/authid/detail.uri?authorId=57015469100https://www.scopus.com/authid/detail.uri?authorId=5722120683
Characterization of the Martian Convective Boundary Layer
Full text linkThe authors have carried out an extensive characterization of the Martian mixed layer formed under convective conditions. The values of the mixed layer height, convective velocity scale, convective temperature scale, mean temperature standard deviation, mean horizontal and vertical velocity standard deviations, and mean turbulent viscous dissipation rate have been obtained during the strongest convective hours for the mixed layer. In addition, the existing database of the surface layer has been improved by recalculating some parameters (e.g., Monin–Obukhov length, friction velocity, or scale temperature) that had already been obtained in previous papers by other means and also by calculating new ones, such as the standard deviation of the vertical wind speed velocity, the turbulent viscous dissipation rate, and eddy transfer coefficients for momentum and heat. The Earth counterparts of all these magnitudes are also shown. In this paper, a comprehensive database concerning the whole convective planetary boundary layer on Mars is displayed, and a detailed terrestrial comparison is established.
The inputs of this work are hourly in situ temperature, hourly in situ horizontal wind speed, and hourly simulated ground temperature for specific selected Sols of the Viking and Pathfinder landers. These data correspond to typical low and midlatitude northern summertime conditions, with weak prevailing winds. To handle this set of data, surface layer and mixed layer similarity theory have been used at the strongest convective hours. In addition, the inclusion of a parameterization of a molecular sublayer and prescribed values of the surface roughness has been considered.MEC’sDepto. de Análisis Matemático y Matemática AplicadaFac. de Ciencias MatemáticasTRUEpu
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