bluuebunny/crossref_metadata_2025 huggingface dataset:
The effects of stocking density on slaughter performance and some meat quality parameters of Pekin ducks
Authors: Eratalar Sabri Arda , Okur Nezih , Yaman Ahmet
Published: May 2022

Abstract. The effects of stocking density on slaughter performance and meat quality
were primarily investigated in this research. A total of 240 Pekin ducks
were used, and they were reared until slaughter age (42 d) in three
different stocking density groups (three, five and seven ducklings m−2).
To compare the slaughter performance of the ducklings' live weight, carcass
weight, carcass yield, thigh and breast meat weight and yield, and edible
giblet weight (heart, liver and gizzard) were investigated. The meat
quality was compared between the treatment groups based on dry matter ratio,
cooking loss, water-holding capacity, pH values, and colour parameters (L,
a, b, c, h and ΔE values). Carcass weight, carcass yield, thigh and
breast meat weight were found to decrease in parallel to the increasing
stocking density, resulting in a reduction in thigh and breast meat weights
and ratios (P<0.05). Increasing the stocking density decreased the heart
weight and positively improved the liver and gizzard ratio (P<0.05).
However, it did not affect the meat quality parameters investigated in this
research (P<0.05). The breast meat of the ducks reared under higher stocking
density had higher L, h and ΔE values, lower a value (P<0.05), and
similar b and c values (P<0.05). Evaluating the overall research findings,
it was concluded that increased stocking density when rearing ducks
negatively affects the slaughter performance, affecting only breast meat
colour and weight of thigh meat with skin in investigated meat quality
parameters.
Projected increases in wildfires may challenge regulatory curtailment of PM2.5 over the eastern US by 2050
Authors: Sarangi Chandan , Qian Yun , Leung Ruby , Zhang Yang , Zou Yufei , Wang Yuhang
Published: May 2022

Abstract. Anthropogenic contribution to the overall fine particulate matter (PM2.5) concentrations has been declining sharply in North America. In contrast, a steep rise in wildfire-induced air pollution events with recent warming is evident in the region. Here, based on coupled fire-climate-ecosystem model simulations, summertime wildfire-induced PM2.5 concentrations are projected to nearly double in North America by the mid-21st century compared to the present. More strikingly, the projected enhancement in fire-induced PM2.5 (~ 1–2 µg/m3) and its contribution (~15–20 %) to the total PM2.5 are distinctively significant in the eastern US. This can be attributed to downwind transport of smoke from future enhancement of wildfires in North America to the eastern US and associated positive climatic feedback on PM2.5 via increased atmospheric stability and reduced precipitation. Therefore, the anticipated reductions in PM2.5 from regulatory controls on anthropogenic emissions could be significantly compromised in the future in the densely populated eastern US.
Assessing the consequences of including aerosol absorption in potential stratospheric aerosol injection climate intervention strategies
Authors: Haywood Jim M. , Jones Andy , Johnson Ben T. , McFarlane Smith William
Published: May 2022

Abstract. Theoretical stratospheric aerosol intervention (SAI) strategies model the deliberate injection of aerosols or their precursors
into the stratosphere, thereby reflecting incident sunlight back to space and counterbalancing a fraction of the warming due to increased concentrations
of greenhouse gases. This cooling mechanism is known to be relatively robust
through analogues from explosive volcanic eruptions which have been
documented to cool the climate of the Earth. However, a practical difficulty
of SAI strategies is how to deliver the injection high enough to ensure
dispersal of the aerosol within the stratosphere on a global scale.
Recently, it has been suggested that including a small amount of absorbing
material in a dedicated 10 d intensive deployment might enable aerosols or
precursor gases to be injected at significantly lower, more
technologically feasible altitudes. The material then absorbs sunlight, causing a localised heating and “lofting” of the particles and enabling them to
penetrate into the stratosphere. Such self-lofting has recently been
observed following the intensive wildfires in 2019–2020 in south-eastern Australia, where the resulting absorbing aerosol penetrated into the
stratosphere and was monitored by satellite instrumentation for many months
subsequent to emission. This study uses the fully coupled UKESM1 climate
model simulations performed for the Geoengineering Model Intercomparison
Project (GeoMIP) and new simulations where the aerosol optical properties
have been adjusted to include a moderate degree of absorption. The results
indicate that partially absorbing aerosols (i) reduce the cooling efficiency
per unit mass of aerosol injected, (ii) increase deficits in global
precipitation, (iii) delay the recovery of the stratospheric ozone hole, (iv) disrupt the Quasi-Biennial Oscillation when global-mean temperatures are reduced by as little as 0.1 K, and (v) enhance the positive phase of the wintertime North Atlantic Oscillation which is associated with floods in
northern Europe and droughts in southern Europe. While these results are dependent upon the exact details of the injection strategies and our
simulations use 10 times the ratio of black carbon to sulfate that is considered in the recent intensive deployment studies, they demonstrate some
of the potential pitfalls of injecting an absorbing aerosol into the
stratosphere to combat the global warming problem.
The onset of the spring phytoplankton bloom in the coastal North Sea supports the Disturbance Recovery Hypothesis
Authors: González-Gil Ricardo , Banas Neil S. , Bresnan Eileen , Heath Michael R.
Published: May 2022

Abstract. The spring phytoplankton bloom is a key event in
temperate and polar seas, yet the mechanisms that trigger it remain under
debate. Some hypotheses claim that the spring bloom onset occurs when light
is no longer limiting, allowing phytoplankton division rates to surpass a
critical threshold. In contrast, the Disturbance Recovery Hypothesis (DRH)
proposes that the onset responds to an imbalance between phytoplankton
growth and loss processes, allowing phytoplankton biomass to start
accumulating, and this can occur even when light is still limiting. Although
several studies have shown that the DRH can explain the spring bloom onset
in oceanic waters, it is less certain whether and how it also applies to
coastal areas. To address this question at a coastal location in the
Scottish North Sea, we combined 21 years (1997–2017) of weekly in situ
chlorophyll and environmental data with meteorological information.
Additionally, we also analyzed phytoplankton cell counts estimated using
microscopy (2000–2017) and flow cytometry (2015–2017). The onset of
phytoplankton biomass accumulation occurred around the same date each year,
16 ± 11 d (mean ± SD) after the winter solstice, when light
limitation for growth was strongest. Also, negative and positive biomass
accumulation rates (r) occurred respectively before and after the winter
solstice at similar light levels. The seasonal change from negative to
positive r was mainly driven by the rate of change in light availability
rather than light itself. Our results support the validity of the DRH for
the studied coastal region and suggest its applicability to other coastal
areas.
MPAS-Seaice (v1.0.0): sea-ice dynamics on unstructured Voronoi meshes
Authors: Turner Adrian K. , Lipscomb William H. , Hunke Elizabeth C. , Jacobsen​​​​​​​ Douglas W. , Jeffery Nicole , Engwirda Darren , Ringler Todd D. , Wolfe Jonathan D.
Published: May 2022

Abstract. We present MPAS-Seaice, a sea-ice model which uses the Model for Prediction Across Scales (MPAS) framework and spherical centroidal Voronoi tessellation (SCVT) unstructured meshes. As well as SCVT meshes, MPAS-Seaice can run on the traditional quadrilateral grids used by sea-ice models such as CICE. The MPAS-Seaice velocity solver uses the elastic–viscous–plastic (EVP) rheology and the variational discretization of the internal stress divergence operator used by CICE, but adapted for the polygonal cells of MPAS meshes, or alternatively an integral (“finite-volume”) formulation of the stress divergence operator. An incremental remapping advection scheme is used for mass and tracer transport. We validate these formulations with idealized test cases, both planar and on the sphere. The variational scheme displays lower errors than the finite-volume formulation for the strain rate operator but higher errors for the stress divergence operator. The variational stress divergence operator displays increased errors around the pentagonal cells of a quasi-uniform mesh, which is ameliorated with an alternate formulation for the operator. MPAS-Seaice shares the sophisticated column physics and biogeochemistry of CICE and when used with quadrilateral meshes can reproduce the results of CICE. We have used global simulations with realistic forcing to validate MPAS-Seaice against similar simulations with CICE and against observations. We find very similar results compared to CICE, with differences explained by minor differences in implementation such as with interpolation between the primary and dual meshes at coastlines. We have assessed the computational performance of the model, which, because it is unstructured, runs with 70 % of the throughput of CICE for a comparison quadrilateral simulation. The SCVT meshes used by MPAS-Seaice allow removal of equatorial model cells and flexibility in domain decomposition, improving model performance. MPAS-Seaice is the current sea-ice component of the Energy Exascale Earth System Model (E3SM).
A scalability study of the Ice-sheet and Sea-level System Model (ISSM, version 4.18)
Authors: Fischler Yannic , Rückamp Martin , Bischof Christian , Aizinger Vadym , Morlighem Mathieu , Humbert Angelika
Published: May 2022

Abstract. Accurately modelling the contribution of Greenland and Antarctica to sea level rise requires solving partial differential equations at a high spatial resolution.
In this paper, we discuss the scaling of the Ice-sheet and Sea-level System Model (ISSM) applied to the Greenland Ice Sheet with horizontal grid resolutions varying between 10 and 0.25 km. The model setup used as benchmark problem comprises a variety of modules with different levels of complexity and computational demands. The core builds the so-called stress balance module, which uses the higher-order approximation (or Blatter–Pattyn) of the Stokes equations, including free surface and ice-front evolution as well as thermodynamics in form of an enthalpy balance, and a mesh of linear prismatic finite elements, to compute the ice flow. We develop a detailed user-oriented, yet low-overhead, performance instrumentation tailored to the requirements of Earth system models and run scaling tests up to 6144 Message Passing Interface (MPI) processes. The results show that the computation of the Greenland model scales overall well up to 3072 MPI processes but is eventually slowed down by matrix assembly, the output handling and lower-dimensional problems that employ lower numbers of unknowns per MPI process.
We also discuss improvements of the scaling and identify further improvements needed for climate research. The instrumented version of ISSM thus not only identifies potential performance bottlenecks that were not present at lower core counts but also provides the capability to continually monitor the performance of ISSM code basis. This is of long-term significance as the overall performance of ISSM model depends on the subtle interplay between algorithms, their implementation, underlying libraries, compilers, runtime systems and hardware characteristics, all of which are in a constant state of flux. We believe that future large-scale high-performance computing (HPC) systems will continue to employ the MPI-based programming paradigm on the road to exascale. Our scaling study pertains to a particular modelling setup available within ISSM and does not address accelerator techniques such as the use of vector units or GPUs. However, with 6144 MPI processes, we identified issues that need to be addressed in order to improve the ability of the ISSM code base to take advantage of upcoming systems that will require scaling to even higher numbers of MPI processes.
Exploring tracer information in a small stream to reduce the uncertainty and enhance the process interpretation of transient storage models
Authors: Bonanno Enrico , Blöschl Günter , Klaus Julian
Published: May 2022

Abstract. The transport of solutes in river networks is controlled by the interplay of processes such as in-stream solute transport and the exchange of water between the stream channel and dead zones, in-stream sediments, and the hyporheic zone. Transient storage models (TSMs) are a powerful tool for testing hypotheses related to solute transport in streams. However, TSM parameters are often non-identifiable leading to an unclear understanding of the processes controlling solute transport in streams. In this study, we increased parameter identifiability in a set of tracer breakthrough experiments by combining global identifiability analysis and dynamic identifiability analysis. We compared our results to inverse modelling approaches (OTIS-P) and the commonly used random sampling approach for TSMs (OTIS-MCAT). Compared to OTIS-P, our results informed about sensitivity and identifiability of TSM parameters on the entire feasible parameter space. Our results clearly improved parameter identifiability compared to OTIS-MCAT that often indicated non-identifiability of TSM parameters. Non-identifiable results led to wrong solute retention times in the storage zone and the exchange flow with the storage zone, with a difference respectively up to four and two orders of magnitude compared to results with identifiable TSM parameters. The severe differences in the transport metrics between results obtained from our proposed approach and results from OTIS-MCAT model also resulted in contrasting interpretation of the hydrologic processes controlling solute transport at the study site. Thus, our outcomes point to the risks of interpreting TSM results when even one of the TSM parameters is non-identifiable. Our results showed that there is clear potential for increasing parameter identifiability in random sampling approaches for TSMs and for advancing our understanding of hydrological processes controlling in-stream solute transport.
Assessing flooding impact to riverine bridges: an integrated analysis
Authors: Pregnolato Maria , Winter Andrew O. , Mascarenas Dakota , Sen Andrew D. , Bates Paul , Motley Michael R.
Published: May 2022

Abstract. Flood events are the most frequent cause of damage to
infrastructure compared to any other natural hazard, and global changes
(climate, socioeconomic, technological) are likely to increase this damage.
Transportation infrastructure systems are responsible for moving people,
goods and services, and ensuring connection within and among urban areas. A
failed link in these systems can impact the community by threatening
evacuation capability, recovery operations and the overall economy. Bridges
are critical links in the wider urban system since they are associated with
little redundancy and a high (re)construction cost. Riverine bridges are
particularly prone to failure during flood events; in fact, the risks to
bridges from high river flows and erosion have been recognized as
crucial at global level. The interaction of flow, structure and network
is complex, and not fully understood. This study aims to establish a
rigorous, multiphysics modeling approach for the assessment of the
hydrodynamic forces impacting inundated bridges, and the subsequent
structural response, while understanding the consequences of such impact on
the surrounding network. The objectives of this study are to model hydrodynamic forces as demand on the bridge structure, to advance a performance
evaluation of the structure under the modeled loading, and to assess the
overall impact at systemic level. The flood-prone city of Carlisle (UK) is
used as a case study and a proof of concept. Implications of the
hydrodynamic impact on the performance and functionality of the surrounding
transport network are discussed. This research will help to fill the gap
between current guidance for design and assessment of bridges within the
overall transport system.
Interannual variation of a bottom cold water mass in the Seto Inland Sea, Japan
Authors: Zhu Junying , Shi Jie , Guo Xinyu
Published: May 2022

Abstract. A bottom cold water mass (BCWM) is a widespread physical
oceanographic phenomenon in coastal seas, and its temperature variability
has an important effect on the marine ecological environment. In this study,
the interannual variation of the BCWM in Iyo-Nada (INCWM), a semi-enclosed
bay in the Seto Inland Sea, Japan, from 1994 to 2015 and its response to
air–sea heat flux change were investigated using monthly observational data
and a hydrodynamic model. Surrounded by the isotherm of 18 ∘C, the
observed multi-year average water temperature inside the INCWM was 17.58 ∘C with a standard deviation of 0.27 ∘C, while the mean area
of INCWM was 5.73 × 105 m2 with a standard deviation of
4.35 × 105 m2. The interannual variation of average water
temperature of INCWM showed a negative correlation with its area that
indicates a low temperature corresponds to a big area. In addition, the
interannual variation of the average temperature inside INCWM showed
positive correlations with the local water temperature from April to July
and with remote water temperature below 10 m in an adjacent strait in July.
Differing from previously studied BCWMs, which had interannual variations
depending closely on the water temperature before the warming season, the
interannual variation of INCWM is more sensitive to the air–sea heat flux
during the warming season than that in the previous winter. Further, by
comparing several BCWMs, we found that the BCWM size is a key factor in
understanding the heat transfer process responsible for the interannual
variation of BCWMs in coastal seas. These findings will help us to
understand the response of bottom cold water mass in coastal seas to sea
surface forcing change.
Investigation into boundary layer transition using wall-resolved large-eddy simulations and modeled inflow turbulence
Authors: Lobo Brandon Arthur , Schaffarczyk Alois Peter , Breuer Michael
Published: May 2022

Abstract. The objective of the present paper is to investigate the transition
scenario of the flow around a typical section of a wind turbine
blade exposed to different levels of inflow turbulence.
A rather low Reynolds number of Rec=105 is studied at a
fixed angle of attack but under five different turbulence intensities
(TIs) up to TI = 11.2 %. Using wall-resolved large-eddy simulations
combined with an inflow procedure relying on synthetically
generated turbulence and a source-term formulation for its
injection within the computational domain, relevant
flow features such as the separation bubble,
inflectional instabilities and streaks
can be investigated.
The study shows that the transition scenario significantly
changes with rising TI, where the influence of
inflectional instabilities due to an adverse pressure gradient
decreases, while the influence of streaks
increases, resulting in a shift from the classical scenario of
natural transition to bypass transition.
The primary instability mechanism in the separation bubble
is found to be inflectional, and its origin is traced back to the
region upstream of the separation. Thus, the inviscid inflectional
instability of the separated
shear layer is an extension of the instability of the attached
adverse pressure gradient boundary layer observed upstream.
The boundary layer is evaluated to
be receptive to external disturbances such that the initial energy
within the boundary layer is proportional to the square of the turbulence
intensity. Boundary layer streaks were found to influence the instantaneous
separation location depending on their orientation. A varicose mode of
instability is observed on the overlap of the leading edge of a high-speed
streak with the trailing edge of a low-speed streak. The critical amplitude
of this instability was analyzed to be about 32 % of the
free-stream velocity.
Afrofuturism: Race, Erasure, and COVID
Authors: Wallace Belinda Deneen , Schwartz Jesse W.
Published: May 2022

Introduction to the issue on Teaching Afrofuturism
Assessing students’ statistical literacy
Authors:   The University of Auckland, Budgett Stephanie , Pfannkuch Maxine ,   The University of Auckland
Published: May 2022

This paper describes the methods and challenges in assessing an undergraduate course entitled Lies, Damned Lies, and Statistics. The course has three main aims: to instill in students the ability to “think statistically”, to enable students to critically evaluate statistically based reports and to teach students to construct statistically sound reports. The assessment is examined in terms of these aims and the criteria developed by Gal (2002) for statistical literacy.
Representations of data and manipulations through reduction – competencies of German secondary students
Authors:   LMU Munich, Lindmeier Anke , Kuntze Sebastian ,   LMU Munich, Reiss Kristina ,   LMU Munich
Published: May 2022

Statistical literacy encompasses competencies regarding the use of mathematical representations and the manipulation of data through reduction. Dealing with data referring to authentic situations, basic activities of modeling are linked to this domain of statistical literacy. Based on the recently introduced German standards emphasizing the importance of representations and modeling, our study aims at assessing competencies of middle graders in German classrooms. Therefore, a pilot study with more than 180 fifth- and eight-graders in upper secondary schools was conducted with the additional aim of testing the properties of a set of assessment tasks. The results support on the one hand typical misconceptions of students and specify on the other hand the status quo of the domain of statistical literacy in question. Using Rasch-analysis we can support the hierarchical concept.
Can authentic assessment help in delivering competent consumers of statistics for non-academic professions?
Authors:   Ghent University, Schuyten Gilberte , Ferla Johan ,   Ghent University
Published: May 2022

Since quantitative research skills become more and more relevant for non academic professions, the four courses research curriculum at the department of educational sciences of Ghent University aims to deliver competent consumers of statistics who possess quantitative research skills and attitudes needed to produce and use research in their professional careers.This study focuses on the impact of authentic assessment with group project work on student self-efficacy beliefs and attitudes towards statistics. About 180 students, enrolled at the fourth course, are engaged in collaborative project work during 8 weeks on a given data-base. Students’ perceptions of self-efficacy, attributions for academic success, assessment expectations and attitude towards quantitative research as a field and as a course are measured after the presentations of their projects. The control group consists of students enrolled at the third course.
Tecnologías de Información y Comunicación versus Upskilling y Reskilling de colaboradores públicos
Authors: Arias Gonzáles José Luis , Covinos Gallardo Mitsuo Roger , Cáceres Chávez Milagros Del Rosario
Published: May 2022

El presente artículo científico tiene como objetivo establecer la relación entre el uso de las Tecnologías de la Información y la Comunicación en el desarrollo de las competencias laborales (Upskilling y Reskilling) de los colaboradores del sector público en tiempos de Covid-19 en Arequipa, Perú. Se empleó una metodología aplicada, correlacional, no experimental, de campo, utilizando como técnica la encuesta y el cuestionario como instrumento. Los resultados de la prueba de normalidad derivados son: valores de 0,59 y 0,34 con un nivel de centralidad de 0,000 y 0,001. La prueba de hipótesis aplicada consolidó un valor de significancia de 0,000 < 0,05, aceptando la hipótesis investigativa. Los principales hallazgos evidencian que además de comprobarse la relación significativa se manifiesta el interés de los colaboradores de actualizar, renovar sus habilidades y capacidades en beneficio propio y colectivo. Se concluye que es necesario adquirir nuevas habilidades y actualizar capacidades, lo cual es más relevante durante esta etapa pandémica.
Análisis predictivo de los indicadores macroeconómicos del sector turístico post-Covid-19, Perú 2019-2023
Authors: Valle Díaz Felipe Rafael , Huamán Romaní Yersi Luis
Published: May 2022

El objetivo de este trabajo es analizar predictivamente los indicadores macroeconómicos del sector turismo post Covid-19 para el Perú durante el período 2019-2023 con datos correspondientes a los indicadores macroeconómicos 2007-2018 con proyección al 2023. La metodología consistió en una investigación documental y descriptiva utilizando como muestra los turistas que ingresan al Perú. Los resultados indican estimando a través de la suavización exponencial doble el ingreso por turismo per cápita en 1137 US$ para finales del 2020. A finales de 2021 será de 1136 dólares y en 2023 de 1133 dólares. Los ingresos en divisas son de 5161 millones de dólares en 2021 y de 5508 millones en 2023. El Producto Interior Bruto para el sector de Alojamiento y Restauración, explica el crecimiento exponencial, registrando 18.398 millones 307 mil dólares para 2021. Las conclusiones muestran que el factor clave del superávit en el sector turístico es el aprovechamiento de la entrega en el subsector restaurante y la adaptación de las cadenas hoteleras al contexto post-Covid-19.
Gestión e investigación en ingeniería: revisión sistemática de literatura para Iberoamérica
Authors: Ruiz-Ruiz Marcos Fernando , Díaz-Garay Bertha Haydeé , Noriega-Aranibar Maria Teresa
Published: May 2022

La investigación-acción, proveniente de las ciencias sociales, es una metodología participativa y aplicable a cualquier problema de gestión empresarial. No obstante, es poco conocida en ingeniería. Esta investigación desarrolla la revisión sistematizada de 48 artículos publicados en Scopus y la Web of Science entre los años 2000 y 2020 por investigadores adscritos a instituciones iberoamericanas que desarrollaron experiencias y prácticas de investigación-acción en contextos vinculados a la ingeniería. El objetivo fue describir las características de dicha producción académica y de su implementación. Los resultados revelan que Brasil y España lideran el uso de la investigación-acción en Iberoamérica, siendo predominante en el área de la ingeniería informática, de software y de sistemas de información. La investigación-acción se presenta con fuerte participación de los mismos investigadores; quienes observan la situación problemática, proponen acciones, reflexionan y evalúan el sistema para comenzar un nuevo ciclo de trabajo. La revisión concluye que, el incipiente uso de la investigación-acción, ha resultado exitoso para la ingeniería y que existe la consecuente posibilidad de ser replicada en otras áreas afines a la gestión y administración empresarial.
Implicaciones financieras de la inclusión del valor compartido en prácticas empresariales
Authors: Méndez Pinzón Manuel , Velez Rolon Adela Margarita , Villarreal Ramos Román Leonardo , Gómez Osorio Marcela
Published: May 2022

Incluir la sostenibilidad en la estrategia de negocios en las Mipymes (Micro, pequeñas y medianas empresas) se convierte en un reto, más allá de los mecanismos que deben ser abordados para su implementación y es un tema aún poco explorado. Este artículo se centra en analizar las implicaciones financieras que representan para las mipymes incurrir en la implementación de propuestas de Valor compartido en sus organizaciones. La evidencia empírica y de validación de la hipótesis, se realizó mediante la aplicación de un cuestionario autogestionado, en la que se indagaba por los principales factores que inciden la creación de valor compartido en las empresas, y el análisis de la información financiera correspondiente a los años 2018 y 2019. Para el análisis se construyó un Modelo de Ecuaciones Estructurales, el cual permitió identificar las estrategias de valor compartido e Ingresos operacionales, costos y utilidad. Este estudio concluye las empresas que deciden invertir en la creación de valor compartido, deben hacer inversiones cuyos beneficios económicos se ven solo en el mediano o largo plazo. Sin embargo, resulta fundamental que las estrategias sean evaluadas no sólo en relación con los retornos de su inversión, sino a través de sus efectos futuros sobre las ventas y los flujos de efectivo.
Investigación y Desarrollo: efectos en el desempeño financiero de empresas manufactureras mexicanas
Authors: Mendoza Arvizo Ulises , González Macías Carlos Jesús
Published: May 2022

Este artículo pretendió determinar la relación de la Investigación y Desarrollo con el conocimiento generado para el desarrollo de innovaciones tecnológicas y sus efectos en el desempeño financiero de las empresas manufactureras en Ciudad Juárez, México. Se realizó una revisión de literatura sobre innovación de producto y el conocimiento. Se condujo un estudio exploratorio, transversal, cuantitativo, no experimental y de tipo correlacional a través de un modelo de ecuaciones estructurales y un análisis factorial en una muestra de 250 cuestionarios. Los resultados demostraron que el conocimiento y la tienen una influencia positiva en el desarrollo de innovaciones de producto. Adicionalmente, los resultados demuestran que cuando el conocimiento y la obtienen resultados satisfactorios en el desarrollo de innovaciones de producto, las empresas incrementan su desempeño financiero. Se concluye que el conocimiento afecta significativamente el desarrollo de innovaciones de producto.
Marketing experiencial y el valor de marca en una empresa del sector gastronómico
Authors: Barboza Seclén Diana Makarena , Miranda Guerra María del Pilar , Cespedes Ortiz Cristhian Paul , Esparza Huamanchumo Rosse Marie
Published: May 2022

El marketing experiencial y el valor de marca son dos aspectos valorados en las empresas. La presente investigación analiza la relación entre ambas variables, el estudio se enfoca en identificar la relación entre el marketing experiencial, sus dimensiones y el valor de marca en una empresa del sector gastronómico de la región Cajamarca. La investigación es de tipo descriptivo trasversal y correlacional; se utilizó la técnica de la encuesta y como instrumento el cuestionario. Los resultados obtenidos muestran la existencia de una relación directa positiva entre la experiencia vivida, y el valor de marca. Los hallazgos de este estudio tienen importantes aportes para las empresas del sector. Se concluye que los consumidores del sector gastronómico valoran una marca en función de los beneficios experienciales, se puede afirmar que existe un vínculo directo entre la calidad de la experiencia que se desarrolla en el restaurante y la capitalización del valor de marca.
COVID-19 y microempresas: un estudio en Bogotá-Colombia
Authors: Villa Castaño Lida Esperanza , Perdomo-Ortiz Jesús
Published: May 2022

La pandemia de la COVID-19 ha generado una crisis global y obligado a ejercicios de investigación de coyuntura. En Colombia las microempresas son más del 90% del tejido empresarial y tienen una tasa de supervivencia de menos del 40%. Este estudio cualitativo explora cómo un grupo de microempresas del sector industrial afrontaron los desafíos de la COVID-19. El trabajo de campo se realizó aplicando una entrevista semiestructura a una muestra de 50 microempresas formalizadas mediante registro mercantil. Los datos se procesaron en el software Nvivo con cuatro categorías de análisis: impactos, apoyos estatales, estrategias para afrontar la crisis y decisiones de futuro. Los resultados evidencian cómo la COVID-19 hizo visible un dilema que parecía obsoleto: la tensión entre solidaridad y flexibilidad en el mundo del trabajo. Además, se encontró una tendencia hacia la transformación digital básica y al ajuste en los modelos de negocios con fuertes restricciones financieras y de operación por insuficiencia del apoyo estatal. Se concluye que el sector microempresarial posee lógicas de gerencia muy susceptibles a las coyunturas socioeconómicas expresadas en tensiones entre la formalidad y la informalidad.
Gerencia educativa y visión empresarial: una mirada crítica
Authors: Flores Ccanto Florencio , Lopez Pumayali Manuel Fritz , Zulema Jacoba Llange Nieves , Flores Conislla Lilia Dina
Published: May 2022

Desde hace algunas décadas, el espíritu de eficiencia y calidad de la administración empresarial impregnó las distintas organizaciones que hacen vida en las sociedades latinoamericanas, especialmente aquellas manejadas desde el sector público. La gerencia educativa adoptó modelos administrativos de corte tecnocrático e instrumental en aras del alcance de las metas de la organización. El objetivo de este trabajo es describir la visión empresarial de la gerencia educativa desde un enfoque crítico. La investigación corresponde a una revisión teórica documental y/o bibliográfica. Las reflexiones arrojaron que estas tendencias gerenciales alejan a las organizaciones educativas de su propósito fundamental, la educación de calidad y con compromiso social, sustituyéndola por una instrucción técnica. Se concluye que los gerentes educativos contemporáneos deben estar capacitados para el desarrollo de competencias técnicas, conceptuales y humanas, desde una gestión flexible y diversa.
Desarrollo Ambiental Sostenible: un nuevo enfoque de educación física pospandemia en Ecuador
Authors: Posso Pacheco Richar Jacobo , Cóndor Chicaiza María Gladys , Cóndor Chicaiza Jannet del Rocío , Núñez Sotomayor Luis Fernando Xavier
Published: May 2022

El Ecuador ha impulsado la implementación de los Objetivos de Desarrollo Sostenible en la educación, mediante la vigencia del currículo nacional abierto y flexible desde el 2016, permitiendo que el docente realice gradaciones y contextualizaciones en los contenidos curriculares y sus niveles de complejidad, en función a las necesidades y requerimientos de aprendizaje de los estudiantes; apoyados en la pandemia por diferentes recursos tecnológicos y estrategias metodológicas activas en una educación remota. El objetivo de esta investigación fue explorar la alineación del pilar desarrollo sostenible ambiental con la Educación Física ecuatoriana durante la pandemia. Se realizó una investigación teórica con un análisis documental, encontrando que el currículo además de los enfoques lúdico, inclusivo y de la corporeidad, durante las propuestas curriculares virtuales y a distancia, desarrollaron un cuarto enfoque llamado ecológico, que permitirá en la pospandemia plantear estrategias metodológicas dirigidas a la enseñanza del respeto a la naturaleza para su cuidado y protección a través de la interacción entre actividades físicas y los espacios naturales. Se concluye que, para aplicar estrategias de sostenibilidad ambiental en la educación física, debe cumplirse compromisos de responsabilidad y participación, para reducir el impacto ambiental entre las actividades realizadas y el entorno en que se desenvuelven los estudiantes y docentes.
Nutrition of older adults in the Republic of Kazakhstan
Authors: Satayeva Zhuldyz , Tayeva Aigul , Rskeldiyev Berdan , Zhaksylykova Gulshat , Akhmetova Nursulu
Published: May 2022

This article discusses a study on the nutrition specifics of older adults living in social service institutions in three major cities of the Republic of Kazakhstan: Nur-Sultan, Almaty, and Shymkent. The direction of the research meets the priorities of the World Health Organization to achieve goals on aging and health. The diets of older adults in the Republic of Kazakhstan were studied, food preferences were identified, and needs for basic nutrients were established. This article presents the results of sociological surveys of older adults who answered questions about nutrition, preferred foods, raw materials, and meat products. Based on the survey results, technologies of herodietic meat products aimed at enriching the diet with proteins were developed, along with practical recommendations for a balanced diet. This area of research is relevant due to the lack of products with a herodietic profile on the Kazakhstan market.
Hip arthroplasty in patients with rheumatoid arthritis
Authors: Ershov A. S. , Volokitina E. A.
Published: May 2022

Introduction. The literature review deals with the current state of the problem of the hip replacement (HR), in patients with rheumatoid arthritis (RA) are considered in order to systematize the accumulated experience. Materials and methods. A search was conducted for relevant scientific publications over the past ten years in the databases of evidence-based medicine Cochrane Lirary, PubMed and the electronic scientific library e-library. According to the selected keywords, 100 publications were selected and analyzed. Results and discussion. RA is a systemic autoimmune disease characterized by synovial inflammation, symmetrical erosive-destructive polyarthritis, progressive destruction of the joints with the development of severe deformities, as well as a wide range of extra-articular somatic and hematological manifestations. It was revealed that HR allows you to restore musculoskeletal function and significantly reduce pain, but in patients with RA it has a large percentage of local and general complications. As a result of severe connective tissue lesions, long-term hormonal and immunosuppressive therapy, the structure of bone tissue and the anatomy of articulated bones change significantly. The protrusio acetabula with significant medialization of the center of rotation of the hip joint require a special reconstructive hip replacement. The minimizing surgical trauma, the osteoplasty protrusion defect of acetabula, stability fixation of the prosthesis, specialized preoperative preparation, reducing the activity of the inflammatory process, the prevention of periprosthetic infection and the prevention of venous thromboembolism, the correction of anemia are becoming increasingly relevant. Conclusion. It has been established that the normalization of the joint rotation center, the restoration of the offset with bone grafting of the protrusion defect, reliable primary fixation of the cementless acetabular component of the prosthesis, provide biomechanical conditions for long-term and painless functioning of the implant. Perioperative management of such patients should include a multidisciplinary approach.
History of the Traumatology, orthopedics and military surgery department at the Ural State University (on the 130th anniversary of V.D. Chaklin's birth)
Authors: Kutepov S. M. , Gorbunova Z. I.
Published: May 2022

The work presents information about V.D. Chaklin, corresponding member of the USSR Academy of Medical Sciences, laureate of the USSR State Prize, honored scientist of the RSFSR, Professor, about the chair of traumatology, orthopedics and military surgery at the Ural State Medical University in 1934, the clinical base of which became the Research Institute of Traumatology. The staff of the department under the guidance of Professor V.D. Chaklin carried out pedagogical and scientific activities, made a great contribution to the development of methods of reconstructive surgery. There are monographs by V.D. Chaklin and theses defended by the staff of the department. From the beginning of Great Patriotic War professor V.D. Chaklin was appointed the main traumatologist of Evacuation Hospital Administration of Sverdlovsk Regional Dispensary, headed the courses of medical personnel improvement in traumatology and orthopedics, was the adviser of Evacuation Hospitals, continuing to direct the work of UNITO and the department. V.D. Chaklin during his work in Sverdlovsk created the institute and chair of traumatology and orthopedics, the formation of the Ural scientific school of traumatology and orthopedics began, he brought up pupils — doctors and candidates of sciences, left 13 monographs for future generations.
Rehabilitation of patients with rheumatoid arthritis after hip arthroplasty
Authors: Menshchikova I. A. , Ershov A. S.
Published: May 2022

A complex of rehabilitation measures for 72 patients with rheumatoid arthritis after total hip arthroplasty is presented. Complex restorative treatment was carried out: physical treatment aimed at restoring muscle function; physical and manual treatment aimed at reducing pain syndrome, teaching the correct load on the operated limb when walking with crutches and the recommended amplitude of movements in the joint. Stabilometry was performed on the BioMera platform, a complex for diagnostics, treatment, and rehabilitation of patients with motor pathologies «Trust-M». Methods of descriptive statistics were used. The main attention was paid to restoration or retraining of patients after hip arthroplasty to a normal dynamic walking stereotype. Patients were trained both to walk with and without crutches, to perform a normal walking cycle with the maximum possible observance of its normalized periods when transitioning to walking without support. For this purpose, the patient and others were familiarized with the rules of the normal walking pattern.
Recurrence time in chronic posttraumatic osteomyelitis of the tibia
Authors: Vohmjanin V. A. , Gil'manov R. T. , Borzunov D. Yu.
Published: May 2022

Chronic posttraumatic osteomyelitis is a difficult-to-cure disease of the musculoskeletal system. The relationship between the course of the disease and the presence of type 2 diabetes mellitus has been revealed. It is necessary to predict the time of remission after initial diagnosis in this concomitant pathology. The paper includes data on the rehabilitation outcome of 57 patients with Ciery-Mader 3A (group 1) and 3B (group 2) osteomyelitis. Type 2 diabetes mellitus was a factor of systemic deficiency in wound healing in group 2. Clinical, radiological, and descriptive statistics methods were used. In patients with chronic osteomyelitis and concomitant type 2 diabetes mellitus, the risk of recurrence of purulent inflammatory process in the first year of follow-up increased by 20%. In the absence of systemic compromising factors, purulent process recurrence became more likely in the long-term follow-up periods up to 5 years.
Current problems of surgical treatment of spondylolysis spondylolisthesis
Authors: Efimov D. V. , Lyulin S. V. , Kolotvinov V. S.
Published: May 2022

Although the first description of spondylolisthesis dates back to 1782 (by the Belgian obstetrician Herbinaux) and the evolution of various diagnostic and treatment modalities has undergone many changes, the choice of surgery for this pathology remains controversial. The aim of this work was to determine the optimal surgical access for the treatment of spondylolysis spondylolisthesis depending on the degree of vertebral displacement. The results of treatment of 11 patients with spondylolysis spondylolisthesis who underwent surgical treatment in the period from 2017 to 2021 at the State Medical Institution of the Siberian Branch of the City Clinical Hospital 40 were reviewed. In all cases, despite different methods of surgery (ALIF+MIS TPF or PLIF), positive clinical and radiological treatment results were achieved.
Analysis of the treatment results of patients with concomitant trauma in a level 1 trauma center
Authors: Demidov V. A.
Published: May 2022

Adequate treatment of patients with combined trauma requires not only medical care at the highest level, but also coordination of organizational and logistical processes. We performed a retrospective analysis of the results of treatment of 256 patients with concomitant trauma in the regional trauma center from 2019 to 2021. The analysis included patients older than 18 years with (ISS) ≥18 and (AIS)>3 in two or more anatomical areas of the body. The average index of injury severity (ISS) was 30.5. Victims with combined trauma had a predominance of craniocerebral, chest, abdominal, and spinal trauma. The lethality rate was 15.2%, and the ISS of the deceased victims was 40.7. Victims with severe combined trauma do not tolerate time-consuming and traumatic operations, and «damage control» tactics are used for this group. To reduce the mortality rate it is necessary to transport patients with severe combined trauma from the scene to a level 1 trauma center. Only in a large multidisciplinary hospital with strong resource, therapeutic and human resource potential, it is possible to save victims with severe combined trauma.
Da Clínica à Cirurgia: Pacientes Diagnosticados com Câncer Colorretal do Hospital de Clínicas de Passo Fundo – HCPF
Authors: Possebon Koltermann Milene , Lando Emanuela , Pastorello Julia , Schmitz Lucas Duda , Schmitz Miguel Duda Miguel
Published: May 2022

Segundo o INCA, o câncer colorretal é uma das neoplasias mais frequentes associadas a fatores genéticos e ambientais. O objetivo do presente estudo foi avaliar a clínica e as principais complicações pós-operatórias associadas ao câncer colorretal no Hospital de Clínicas de Passo Fundo (HCPF). Essas complicações foram cruzadas estatisticamente com a idade do paciente, tipo de cirurgia, tipo de acesso à cavidade abdominal e exames laboratoriais no momento da internação. Trata-se de um estudo retrospectivo, epidemiológico, quantitativo, exploratório, realizado entre julho de 2018 e julho de 2019, no HCPF. Os dados obtidos neste estudo mostraram que 77,8% tiveram pelo menos uma complicação pós-operatória. As complicações mais comumente encontradas são infecções do trato urinário (18,5%), pneumonia (11,1%), parada cardiorrespiratória (11,1%), íleo adinâmico (11,1%), infecção de sítio cirúrgico superficial (7,4%), infecção de sítio cirúrgico profundo (7,4). %) e 5,7% foram acometidos por algum tipo de sepse. Não houve evidência significativa que correlacionasse fortemente morbidades com cruzamentos adequados. As taxas de complicações pós-operatórias são aceitáveis ​​e condizentes com dados da literatura.
Sentir-con-otros: Análisis de la condición emocional del humano
Authors:   Universidad de La Sabana, Girado-Sierra Jesús David
Published: May 2022

El presente libro ofrece a la discusión académica un valioso aporte al debate sobre las emociones desde la perspectiva latinoamericana. En sus páginas el lector hallará un detallado análisis sobre la influencia del pathos en la vida social, al mismo tiempo que puede encontrar una interesante reflexión histórica y filosófica de los ires y venires de las emociones en la tradición occidental. Adicionalmente, sentir con otros también permite a la reflexión política romper con el mito cientificista y racionalista que instauró la modernidad, toda vez que expone e involucra al pathos en las dinámicas cotidianas de la vida del hombre como ser social en relación con los otros, lo que permite reconfigurar el quehacer político para tornarlo en algo más humano y tangible
Penerapan Business Intelligence dan Visualisasi Informasi di CV. Mitra Makmur Dengan Menggunakan Dashboard Tableau
Authors: Marvaro Edgar , Sefina Samosir Ridha
Published: May 2022

CV. Mitra Makmur adalah perusahaan yang bergerak di bidang jasa aluminium dan kaca. Saat ini perusahaan ini memiliki masalah dalam pengelolaan order yang mereka miliki. Permasalahaan ini diusulkan solusinya dengan menggunakan pendekatan analisis data dan visualisasi informasi melalui dashboard berdasarkan business intelligence roadmap. Keluaran dari penelitian ini adalah sebuah dashboard yang membantu pemilik usaha untuk melihat secara keseleruhan informasi yang diinginkan dalam pengengelolan order setiap bulannya. Tools analisis yang digunakan adalah Tableau dengan manfaatkan beberapa chart seperti bar chart dan histogram.