54 research outputs found
The infrared Hourglass cluster in M8
A detailed study of the Hourglass nebula in the M8 star-forming region is presented. The study is mainly based on recent subarcsec-resolution JHKs images taken at Las Campanas Observatory and complemented with archival Hubble Space Telescope (HST) images and long-slit spectroscopy retrieved from the European Southern Observatory Archive Facility. Using the new numerical code chorizos, we estimate the distance to the earliest stars in the region to be 1.25 kpc. Infrared photometry of all the sources detected in the field is given. From analysis of the JHKs colour-colour diagrams, we find that an important fraction of these sources exhibit significant infrared excess. These objects are candidates to be low- and intermediate-mass pre-main-sequence stars. Based on HST observations, the spatial distribution of gas, dust and stars in the region is analysed. A morphological analysis of these images also reveals a rich variety of structures related to star formation (proplyds, jets, bow shocks), similar to those observed in M16 and M42, along with the detection of the first four Herbig-Haro objects in the region. Furthermore, a long-slit spectrum obtained with the New Technology Telescope confirms the identification of one of them (HH 870) in the core of the Hourglass nebula, providing the first direct evidence of active star formation by accretion in M8.Facultad de Ciencias Astronómicas y Geofísica
Medical Geology: Its Relevance to Mexico
Interest in medical geology issues is rapidly expanding around the world. The objective of this paper is to highlight medical geology issues in Mexico and to discuss the importance of natural resources and its relation to human and animal health. Three Mexico ́s zones are discussed; North, Central and Western. In addition, two main concerns are addressed; the arsenic and the flouride levels in ground water. These two trace elements along with others such as uranium and radon are elements that pose a serious threat to human health. The last part is dedicated to Chihuahua where arsenic, fluorine, uranium and radon coming from geogenic or anthropogenic sources present a serious threat to humans. The authors hope to encourage students and professors to participate and engage in medical geology conferences and events in order to improve their knowledge on this topic as well as to improve the health of Mexican citizens and people all over the world.
Resumen
El concepto y la importancia del estudio de la geología médica está creciendo alrededor del mundo. El objetivo de este trabajo es discutir la importancia de diversos aspectos de geología médica en México y señalar la relacion de los recursos naturales con la salud humana y animal. Se discuten tres grandes regiones del país: la región norte, la región central y la región oeste. Además, se analizan dos preocupaciones fundamentales: el arsénico y el flúor. Estos dos elementos, junto con otros como el uranio y radón son elementos que potencialmente representan una amenaza a la salud humana en el país. La última parte del análisis se enfoca en el estado de Chihuahua, que es el más grande de México, y donde el arsénico, flúor, uranio y radón, presentes ya sea de fuentes naturales (geogénicas) o antropogénicas, representan una seria amenaza a la salud humana. Los autores desean motivar tanto a estudiantes como profesores a participar e involucrarse en el tema de la geología médica con el fin de ahondar en sus diferentes aspectos y, como consecuencia, mejorar la salud de los habitantes de México y del mundo.
Palabras clave: salud humana, amenaza, arsénico, flúor, uranio, radón
The infrared Hourglass cluster in M8
A detailed study of the Hourglass nebula in the M8 star-forming region is presented. The study is mainly based on recent subarcsec-resolution JHKs images taken at Las Campanas Observatory and complemented with archival Hubble Space Telescope (HST) images and long-slit spectroscopy retrieved from the European Southern Observatory Archive Facility. Using the new numerical code chorizos, we estimate the distance to the earliest stars in the region to be 1.25 kpc. Infrared photometry of all the sources detected in the field is given. From analysis of the JHKs colour-colour diagrams, we find that an important fraction of these sources exhibit significant infrared excess. These objects are candidates to be low- and intermediate-mass pre-main-sequence stars. Based on HST observations, the spatial distribution of gas, dust and stars in the region is analysed. A morphological analysis of these images also reveals a rich variety of structures related to star formation (proplyds, jets, bow shocks), similar to those observed in M16 and M42, along with the detection of the first four Herbig-Haro objects in the region. Furthermore, a long-slit spectrum obtained with the New Technology Telescope confirms the identification of one of them (HH 870) in the core of the Hourglass nebula, providing the first direct evidence of active star formation by accretion in M8.Facultad de Ciencias Astronómicas y Geofísica
Cattle drinking water quality in the cow-calf beef operation in southern Chihuahua, Mexico/Calidad del agua de consumo animal en el sistema vaca-cría del sur de Chihuahua, México
Despite the key role of water in livestock growth and reproduction, there is little information on water
quality for Mexicos beef cattle ranches. The objective of this study was to evaluate drinking water quality for beef
cattle in the cow-calf operation through calculation of a water quality index (WQI) that relates water physical-chemical
composition with common cattle drinking water sources. The study was conducted in 25 cattle ranches of the cow-calf
system in seven municipalities of Chihuahua, Mexico. In all cattle ranches, water samples were collected from the
main water sources, and physical and chemical parameters were analyzed. Statistical analyses were done through
Kruskal-Wallis test, considering water sources (WS) as a source of variation. The WQI was calculated considering
the parameters closely related to animal health and productivity and following standard procedures. Most parameters
showed high variation among WS. The only parameters inuenced by WS were pH, As (p < 0.05) and Co (p < 0.01).
The parameters that surpassed the optimum level for cattle drinking were turbidity for all WS and Mn for earthen tank
and spring/river water. Groundwater showed the best quality with a 50.34 WQI, corresponding to good class. Earthen
tank water also corresponded to good class with a 98.8 WQI, while spring/river water was classied as poor water for
cattle with a 114.47 WQ
The Research Journey as a Challenge Towards New Trends
The academic community of the department of Risaralda, in its permanent interest in evidencing the results of the research processes that are carried out from the Higher Education Institutions and as a product of the VI meeting of researchers of the department of Risaralda held in November 2021 presents its work: “The journey of research as a challenge towards new trends”, which reflects the result of the latest research and advances in different lines of knowledge in Agricultural Sciences, Health Sciences, Social Sciences and Technology and Information Sciences, which seek to solve and meet the demands of the different sectors.
This work would not have been possible without the help of each of the teachers, researchers and authors who presented their articles that make up each of the chapters of the book, to them our gratitude for their commitment, dedication and commitment, since their sole purpose is to contribute from the academy and science to scientific and technological development in the search for the solution of problems and thus contribute to transform the reality of our society and communities. We also wish to extend our
gratitude to the institutions of the Network that made this publication possible: UTP, UCP, UNAD, UNIREMINGTON; UNISARC, CIAF, Universidad Libre, Uniclaretiana, Fundación Universitaria Comfamiliar and UNIMINUTO, institutions that in one way or another allowed this work to become a reality, which we hope will be of interest to you.Preface............................................................................................................................7
Chapter 1. Technologies and Engineering
Towards a humanization in Engineering using soft skills in training
in Engineers.............................................................................................................11
Omar Iván Trejos Buriticá1, Luis Eduardo Muñoz Guerrero
Innovative materials in construction: review from a bibliometric
analysis....................................................................................................................27
Cristian Osorio Gómez, Daniel Aristizábal Torres, Alejandro Alzate Buitrago,
Cristhian Camilo Amariles López
Bibliometric review of disaster risk management: progress, trends,
and challenges.........................................................................................................51
Alejandro Alzate Buitrago, Gloria Milena Molina Vinasco.
Incidence of land coverage and geology, in the unstability of lands
of the micro-basin of the Combia creek, Pereira, Risaralda....................................73
Alejandro Alzate Buitrago, Daniel Aristizábal Torres.
Chapter 2. Arts, Humanities, and Social Sciences
Training experience with teachers teaching mathematics using the
inquiry methodology ...............................................................................................95
Vivian Libeth Uzuriaga López, Héctor Gerardo Sánchez Bedoya.
Interpretation of the multiple representations of the fears associated
to the boarding of limited visual patients in the elective I students’ written
productions and low vision ...................................................................................113
Eliana Bermúdez Cardona, Ana María Agudelo Guevara, Caterine Villamarín Acosta.
The relevance of local knowledge in social sciences............................................131
Alberto Antonio Berón Ospina, Isabel Cristina Castillo Quintero.
Basic education students’ conceptions of conflict a view from the peace
for the education....................................................................................................143
Astrid Milena Calderón Cárdenas,Carolina Aguirre Arias, Carolina Franco Ossa,
Martha Cecilia Gutiérrez Giraldo, Orfa Buitrago.
Comprehensive risk prevention in educational settings: an interdisciplinary
and socio-educational approach ............................................................................163
Olga María Henao Trujillo, Claudia María López Ortiz.
Chapter 3. Natural and Agricultural Sciences
Physicochemical characterization of three substrates used in the deep
bedding system in swine .......................................................................................175
Juan Manuel Sánchez Rubio, Andrés Felipe Arias Roldan, Jesús Arturo Rincón Sanz,
Jaime Andrés Betancourt Vásquez.
Periodic solutions in AFM models........................................................................187
Daniel Cortés Zapata, Alexander Gutiérrez Gutiérrez.
Phenology in flower and fruit of Rubus glaucus benth. Cv. Thornless
in Risaralda: elements for phytosanitary management .........................................199
Shirley Palacios Castro, Andrés Alfonso Patiño Martínez, James Montoya Lerma,
Ricardo Flórez, Harry Josué Pérez.
Socio-economic and technical characterization of the cultivation of
avocado (Persea americana) in Risaralda..............................................................217
Andrés Alfonso Patiño Martínez, Kelly Saudith Castañez Poveda, Eliana Gómez Correa.
Biosecurity management in backyard systems in Santa Rosa de Cabal,
Risaralda................................................................................................................227
Julia Victoria Arredondo Botero, Jaiver Estiben Ocampo Jaramillo, Juan Sebastián Mera Vallejo,
Álvaro de Jesús Aranzazu Hernández.
CONTENTS
Physical-chemical diagnosis of soils in hillside areas with predominance
of Lulo CV. La Selva production system in the department of Risaralda.............241
Adriana Patricia Restrepo Gallón, María Paula Landinez Montes, Jimena Tobón López.
Digestibility of three concentrates used in canine feeding....................................271
María Fernanda Mejía Silva, Valentina Noreña Sánchez, Gastón Adolfo Castaño Jiménez.
Chapter 4. Economic, Administrative, and Accounting Sciences
Financial inclusion in households from socioeconomic strata 1 and 2 in
the city of Pereira ..................................................................................................285
Lindy Neth Perea Mosquera, Marlen Isabel Redondo Ramírez, Angélica Viviana Morales.
Internal marketing strategies as a competitive advantage for the company
Mobilautos SAS de Dosquebradas........................................................................303
Inés Montoya Sánchez, Sandra Patricia Viana Bolaños, Ana María Barrera Rodríguez.
Uses of tourist marketing in the tourist sector of the municipality of Belén
de Umbría, Risaralda.............................................................................................319
Ana María Barrera Rodríguez, Paola Andrea Echeverri Gutiérrez, María Camila Parra Buitrago,
Paola Andrea Martín Muñoz, Angy Paola Ángel Vélez, Luisa Natalia Trejos Ospina.
Territorial prospective of Risaralda department (Colombia), based on
the SDGS...............................................................................................................333
Juan Guillermo Gil García, Samanta Londoño Velásquez.
Chapter 5. Health and Sports Sciences
Performance evaluation in times of pandemic. What do medical
students think?.......................................................................................................353
Samuel Eduardo Trujillo Henao, Rodolfo A. Cabrales Vega, Germán Alberto Moreno Gómez.
The relevance of the therapist’s self and self-reference in the training
of psychologists.....................................................................................................371
Maria Paula Marmolejo Lozano, Mireya Ospina Botero.
Habits related to oral health which influence lifestyle of elder people
in a wellness center for the elderly in Pereira 2020. .............................................387
Isadora Blanco Pérez, Olga Patricia Ramírez Rodríguez, Ángela María Rincón Hurtado.
Analysis of the suicide trend in the Coffee Region in Colombia during
the years 2012-2018 ..............................................................................................405
Germán Alberto Moreno Gómez, Jennifer Nessim Salazar, Jairo Franco Londoño,
Juan Carlos Medina Osorio.
Hind limb long bone fractures in canines and felines...........................................419
María Camila Cruz Vélez, Valentina Herrera Morales, Alba Nydia Restrepo Jiménez, Lina
Marcela Palomino, Gabriel Rodolfo Izquierdo Bravo.
Prevalence of overweight and obesity in children in the rural and urban
area of Risaralda....................................................................................................439
Angela María Álvarez López, Angela Liceth Pérez Rendón, Alejandro Gómez Rodas,
Luis Enrique Isaza Velásquez.
Chapter 6. Architecture, Design and Advertising
The artisan crafts of Risaralda, characteristics, importance, and risks
within the Colombian Coffee Cultural Landscape, CCCL....................................457
Yaffa Nahir Ivette Gómez Barrera, Javier Alfonso López Morales
Elaboración de metodologías, materiales y recursos didácticos para la docencia de la filosofía en educación secundaria, estudios de grado y estudios de posgrado
Memoria ID2022-061. Ayudas de la Universidad de Salamanca para la innovación docente, curso 2022-2023
European journalism observatory: An international consolidated platform for training and professional networks in the Faculty of Information Sciences
El objetivo principal de este proyecto Innova-Docenia era ampliar y consolidar una plataforma de formación internacional y consolidada, para alumnos y alumnas de la Facultad de Ciencias de la Información, como parte del European Journalism Observatory (EJO), fundado por el Instituto Reuters de la Universidad de Oxford. Se trataba de afianzar EJO Spain como plataforma de formación y escaparate de las acciones implementadas en España, donde la Universidad Complutense de Madrid se convertía en el socio español principal.
El Observatorio Europeo de Periodismo (EJO), una red de instituciones independientes y sin ánimo de lucro del campo de la comunicación de 14 países, tiene como objetivo tender puentes entre la investigación y la práctica del periodismo en Europa y fomentar el profesionalismo y la libertad de prensa. Promueve el diálogo entre investigadores y profesionales de los medios. Acerca los resultados de la investigación a las personas que trabajan en los medios. Su objetivo es mejorar la calidad del periodismo, contribuir a una mejor comprensión de los medios y fomentar la libertad de prensa y la responsabilidad de los medios.
Nació en 2004, como una red de varios socios europeos, coordinados por la Universidad de Lugano y la Universidad de Oxford. Fue diseñado para observar las tendencias en el periodismo y en los medios de comunicación, desde una perspectiva ética y deontológica muy amplia. Desde entonces, sus artículos, investigaciones y editoriales son publicados en las distintas páginas web de cada socio: https://es.ejo-online.eu/red-ej
Coliform and metal contamination in Lago de Colina, a recreational water body in Chihuahua State, Mexico.
Lago de Colina (Colina Lake) is located about 180 km south of the city of Chihuahua (Mexico), and during the Semana Santa (Holy Week) vacation period its recreational use is high. The objective of this study was to quantify coliform and heavy metal levels in this water body before and after the Holy Week vacation period in 2010. Twenty sampling points were randomly selected and two water samples were collected at each point near the surface (0.30 m) and at 1 m depth. After the Holy Week vacation the same twenty points were sampled at the same depths. Therefore, a total 80 water samples were analyzed for fecal and total coliforms and levels of the following metals: Al, As, B, Ca, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, Pb, Se, Si and Zn. It was hypothesized that domestic tourism contaminated this water body, and as a consequence, could have a negative impact on visitor health. An analysis of variance (ANOVA) study was performed for each element and its interactions considering a factorial design where factor A was sample date and factor B was sample depth. Fecal coliforms were only detected at eight sampling points in the first week, but after Holy Week, both fecal and total coliforms were detected at most sampling points. The concentrations of Al, B, Na, Ni and Se were only statistically different for factor A. The levels of Cr, Cu, K and Mg was different for both date and depth, but the dual factor interaction was not significant. The amount of Ca and Zn was statistically different due to date, depth and their interaction. No significant differences were found for any factor or the interaction for the elements As, Fe and Mn. Because of the consistent results, it is concluded that local tourism is contaminating the recreational area of Colina Lake, Chihuahua, Mexico
Contamination of the Conchos River in Mexico: Does it pose a health risk to local residents
Presently, water contamination issues are of great concern worldwide. Mexico
has not escaped this environmental problem, which negatively affects aquifers, water
bodies and biodiversity; but most of all, public health. The objective was to determine the
level of water contamination in six tributaries of the Conchos River and to relate their
levels to human health risks. Bimonthly samples were obtained from each location during
2005 and 2006. Physical-chemical variables (temperature, pH, electrical conductivity (EC),
Total solids and total nitrogen) as well as heavy metals (As, Cr, Cu, Fe, Mn, Ni, V, Zn, and
Li) were determined. The statistical analysis considered yearly, monthly, and location
effects, and their interactions. Temperatures differed only as a function of the sampling
month (P < 0.001) and the pH was different for years (P = 0.006), months (P < 0.001) and
the interaction years x months (P = 0.018). The EC was different for each location
(P < 0.001), total solids did not change and total nitrogen was different for years
(P < 0.001), months (P < 0.001) and the interaction years x months (P < 0.001). The As
concentration was different for months (P = 0.008) and the highest concentration was
detected in February samples with 0.11 mg L
-1
. The Cr was different for months (P < 0.001) and the interaction years x months (P < 0.001), noting the highest value of
0.25 mg L
-1
. The Cu, Fe, Mn, Va and Zn were different for years, months, and their
interaction. The highest value of Cu was 2.50 mg L
-1
; for Fe, it was 16.36 mg L
-1
; for Mn it
was 1.66 mg L
-1
; V was 0.55 mg L
-1
; and Zn was 0.53 mg L
-1
. For Ni, there were
differences for years (P = 0.030), months (P < 0.001), and locations (P = 0.050), with the
highest Ni value being 0.47 mg L
-1
. The Li level was the same for sampling month
(P < 0.001). This information can help prevent potential health risks in the communities
established along the river watershed who use this natural resource for swimming and
fishing. Some of the contaminant concentrations found varied from year to year, from
month to month and from location to location which necessitated a continued monitoring
process to determine under which conditions the concentrations of toxic elements surpass
existing norms for natural waters
Las instituciones y el productor, aliados en la transferencia de tecnologia y el desarrollo rural
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