Search | SciELO

Need help?

Add field +

Search history

No documents were found for your search

Results: 124

au:Castro, Ruben

Filters

Collection + Options

All
Mexico

47
Brazil

20
Colombia

18
Chile

8
Public Health

8
Cuba

5
Venezuela

5
Costa Rica

3
Peru

3
Argentina

2
Bolivia

2
Paraguay

2
Portugal

1

Journal + Options

All
Acta zoológica mexicana

12
Cadernos de Saúde Pública

6
Ciencias marinas

6
Revista mexicana de urología

5
Arquivos do Instituto Biológico

4
Madera y bosques

3
Ocean and Coastal Research

3
Revista médica de Chile

3
Atmósfera

2
DYNA

2
Formación universitaria

2
Revista Brasileira de Farmacognosia

2
Revista Panamericana de Salud Pública

2
Revista Universidad y Sociedad

2
Revista de Salud Pública

2

Show all...

Language

All
Portuguese

3

Publication Year + Options

All
2020

13
2017

12
2022

12
2018

9
2015

8
2021

8
2010

7
2014

7
2008

6
2016

6
2006

5
2019

5
2023

5
2007

3
2009

3

Show all...

SciELO Thematic Areas + Options

All
Health Sciences

53
Biological Sciences

22
Agricultural Sciences

16
Exact and Earth Sciences

13
Applied Social Sciences

9
Engineering

9
Multidisciplinary

7
Human Sciences

1

WoS Subject Categories + Options

All
Health

21
Multidisciplinary

20
Sciences

15
Medicine

14
Services

14
Policy

12
Zoology

12
Agriculture

11
Biology

11
Engineering

10
General

9
Internal

9
Environmental

8
Freshwater

7
Marine

7

Show all...

WoS Citation Index + Options

All
Science Citation Index Expanded

47
Social Sciences Citation Index

10

Citables and non citables + Options

All
Citable

122
Non citable

2

Type of Literature + Options

All
Article

97
Case report

10
Review article

8
Rapid communication

4
Brief report

3
Editorial

1
Other

1

Order by

Page of 9 Next

Select this page

Print | Send to email | Export |

Facebook
Twitter
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

0 Selected itens

List all
Erase all

Percepción social sobre estilos de crianza de los hijos en Paraguay, año 2023
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Fernández, Martina

; Garay-Vera, María de la Paz

; Gómez-Gómez, Carlos Rubén

; Benítez-Castro, Hugo Alejandro

; Servín-Pappalardo, Enrique

; Vázquez-Alcaraz, Juan José

Revista Científica de la UCSA

Journal Metrics
- Sobre o periódico
- SciELO Analytics

apr 2024, Volume 11 N. 1 Pages 30 - 37

Abstract: Es En | Text: Es En | PDF: Es | PDF: En

RESUMEN El estilo de crianza se refiere a la manera en la cual los padres ejercen su influencia en la formación y el crecimiento del niño. Del estilo aplicado que fundamentalmente puede ser democrático, autoritario o permisivo, depende en gran medida la salud emocional de ese individuo en crecimiento. En Paraguay, tradicionalmente la figura de los padres se visualiza como el autoritario. El objetivo de esta investigación fue identificar la percepción social sobre estilos de crianzas de los hijos en Paraguay, en el año 2023. El diseño fue cuantitativo, descriptivo, de corte transversal, aplicado a una población de 313 personas, mediante un muestreo no probabilísticos por conveniencia, con el método de la encuesta, a través de un cuestionario difundido por las redes sociales. Entre los principales resultados se evidenció: 69% fueron mujeres; 48.2% con procedencia de Asunción y de 41.9% Central; 84% son de formación universitaria; 60.4% no tienen bajo su responsabilidad a un niño; el estilo predominante en Paraguay según los participantes fue el autoritario con 39%, seguido del permisivo con 29.1%, el democrático con 17.2% y el negligente con 14.7%. El 44.7% sufrió alguna forma de violencia como método de educación; 19.5% ha aplicado alguna forma de violencia en la crianza; 91.7% no está de acuerdo con dichas prácticas; 68.1% considera que la crianza autoritaria puede generar traumas y 83.7% que genera más miedo que respeto. Si la persona pudiese elegir el modelo predominante en Paraguay, el 77.6% optaría por un estilo democrático. Se concluye que el estilo de crianza predominante es el autoritario y que las prácticas de violencia hacia las personas son frecuentes.

ABSTRACT Parenting style refers to the way in which parents exert their influence on the formation and growth of the child. The emotional health of the growing individual depends to a great extent on the style applied, which can be democratic, authoritarian or permissive. In Paraguay, traditionally the parental figure is visualized as authoritarian. The objective of this research was to identify the social perception of parenting styles in Paraguay in the year 2023. The design was quantitative, descriptive, cross-sectional, applied to a population of 313 people, through a non-probabilistic sampling by convenience, with the survey method, through a questionnaire disseminated through social networks. Among the main results were: 69% were women; 48.2% were from Asunción and 41.9% from Central Paraguay; 84% had university education; 60.4% did not have a child under their responsibility; the predominant style in Paraguay according to the participants was authoritarian with 39%, followed by permissive with 29.1%, democratic with 17.2% and negligent with 14.7%. A total 44.7% suffered some form of violence as a method of education; 19.5% have applied some form of violence in upbringing; 91.7% do not agree with such practices; 68.1% consider that authoritarian upbringing can generate traumas and 83.7% that it generates more fear than respect. If a person could choose the predominant model in Paraguay, 77.6% would opt for a democratic style. It is concluded that the predominant parenting style is authoritarian and that violent practices towards people are frequent.

https://doi.org/10.18004/ucsa/2409-8752/2024.011.01.030

Estudio multicéntrico sobre multimorbilidad en internados en áreas clínicas
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics

Valdez, Pascual Rubén

; Leff, Darío

; Wacker, Julio

; Odzak, Andrea

; Cámera, Luis

; Fiori, Mauricio Javier

; Chinen, Jorge

; Daher, José

; Caravelo, Oscar

; Fernández, Diana

; Cruciani, Adrián

; Pérez, Carlos

; Vanzetti, Cecilia

; Calvo, Martina

; Kuschner, Pablo

; Panigadi, Cristian

; Castro, Paula

; Cantillo, Ana

; Aspiazu, Miguel Blanco

Revista Cubana de Medicina

Journal Metrics
- Sobre o periódico
- SciELO Analytics

dec 2023, Volume 62 N. 4 elocation e3370

Abstract: Es En | Text: Es En | PDF: Es | PDF: En

RESUMEN Introducción: El estudio de la comorbilidad requiere de un enfoque multilateral con vistas a mejorar la calidad de la atención de los enfermos por el sistema de atención. Objetivos: Explorar la magnitud de la comorbilidad de enfermedades crónicas en adultos internados en los hospitales. Métodos: Se realizó un estudio prospectivo-observacional-longitudinal-analítico. Se incluyeron pacientes internados en las Salas de Clínica Médica o pacientes clínicos en Salas de Internación Indiscriminada. Se realizó un estudio multicéntrico en 42 centros en un período de 2 años, con un muestreo consecutivo. Para el estudio se tuvo en cuenta la estadística descriptiva, inferencial y de regresión. Resultados: El total de pacientes en el estudio fue de 5925, masculinos con el 50,3 % de edad 60,66 ± 0,25 años. Principal procedencia desde la guardia el 73 %. La estadía hospitalaria de 12,61 ± 0,24 días, mayormente en pacientes quirúrgicos (15,45 ± 0,67 vs 11,76 ± 0,23; p < 0,00001). El 23 % recibió tratamiento quirúrgico. El principal nivel educativo: secundario completo 21,6 %. Dificultades económicas: 20 %, mortalidad 9,26 %; prevalencia de dislipemia, diabetes e hipertensión: 22,53 %; 28,82 % y 51,86 % con 473 nuevos diagnósticos, IMC: 27,88 ± 0,65, Charlson global 2,09 ± 0,02 y en óbitos 3,84 ± 0,11. La media de patologías por paciente fue de 2,14 ± 0,01 y aumentó con la edad (p valor regresión lineal < 0,00001). Conclusiones: La hipertensión, la diabetes y la dislipemia representaron las entidades más prevalentes en Salas de Internación Clínica, Las enfermedades cardiovasculares, respiratorias, infectológicas, oncológicas, neurológicas, metabólicas y nefrológicas fueron predictores independientes de mortalidad.

ABSTRACT Introduction: The study of comorbidity requires a multilateral approach with a view to improving the quality of care for these patients by the care system. Objectives: To explore the magnitude of the comorbidity of chronic diseases in adults admitted to hospitals. Methods: Prospective-observational-longitudinal-analytical study. Patients hospitalized in a medical clinic room or clinical patients in indiscriminate hospitalization rooms are included, Multicenter study in 42 centers, with 2 years of recruitment. Consecutive sampling. Descriptive, inferential and regression statistics. Results: 5925 recruited, male gender 50,3%, age 60,66 ± 0,25 years, main origin from the guard 73%, stay 12,61 ± 0,24 days, longer in surgical (15,45 ± 0,67 vs 11,76 ± 0,23, p < 0,00001), 23% received surgical treatment. Main educational level: complete secondary school 21,6%. Economic difficulties: 20%, mortality 9,26%, prevalence of dyslipidemia, diabetes and hypertension: 22,53%, 28,82% and 51,86% with 473 new diagnoses in said pathologies, BMI: 27,88 ± 0,65, Global Charlson 2,09 ± 0,02 and in deaths 3,84 ± 0,11. The average number of pathologies per patient was 2,14 ± 0,01 and increased with age (p value for linear regression < 0,00001). Conclusions: Hypertension, diabetes and dyslipidemia represented the most prevalent entities in the clinical hospitalization room, cardiovascular, respiratory, infectious, oncological, neurological, metabolic and nephrological diseases were independent predictors of mortality.

Long-term oncological and surgical outcomes after Video Endoscopic Inguinal Lymphadenectomy (VEIL) in patients with penile cancer
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Tobias-Machado, Marcos

; Ornellas, Antonio A.

; Hidaka, Alexandre K.

; Medina, Luis G.

; Mattos, Pablo A. L.

; Besio, Ruben S.

; Abreu, Diego

; Castro, Pedro R.

; Nishimoto, Ricardo H.

; Astigueta, Juan

; Dourado, Aurus

; Machado, Roberto D.

; Magnabosco, Wesley J.

; Corona-Montes, Victor

; Villoldo, Gustavo M.

; Zampolli, Hamilton C.

; Taha, Anis

; Auad, Pericles R.

; Faria, Eliney F.

; Arantes, Paulo B. O.

; Tavares, Alessandro

; Nascimento, Francisco S. M. S.

; Brazão Jr., Eder S.

; Rocha, Maurício M.

; Costa, Walter H.

; Panico, Vinicius

; Reis, Leonardo O.

; Almeida-Carrera, Roberto J.

; Silva, Rafael C.

; Zequi, Stênio C.

; Calixto, José R. R.

; Sotelo, Rene

International braz j urol

Journal Metrics
- Sobre o periódico
- SciELO Analytics

oct 2023, Volume 49 N. 5 Pages 580 - 589

Abstract: En | Text: En | PDF: En

ABSTRACT Objective: To report outcomes from the largest multicenter series of penile cancer patients undergoing video endoscopic inguinal lymphadenectomy (VEIL). Materials and Methods: Retrospective multicenter analysis. Authors of 21 centers from the Penile Cancer Collaborative Coalition-Latin America (PeC-LA) were included. All centers performed the procedure following the same previously described standardized technique. Inclusion criteria included penile cancer patients with no palpable lymph nodes and intermediate/high-risk disease and those with non-fixed palpable lymph nodes less than 4 cm in diameter. Categorical variables are shown as percentages and frequencies whereas continuous variables as mean and range. Results: From 2006 to 2020, 210 VEIL procedures were performed in 105 patients. Mean age was 58 (45-68) years old. Mean operative time was 90 minutes (60-120). Mean lymph node yield was 10 nodes (6-16). Complication rate was 15.7%, including severe complications in 1.9% of procedures. Lymphatic and skin complications were noted in 8.6 and 4.8% of patients, respectively. Histopathological analysis revealed lymph node involvement in 26.7% of patients with non-palpable nodes. Inguinal recurrence was observed in 2.8% of patients. 10y- overall survival was 74.2% and 10-y cancer specific survival was 84.8%. CSS for pN0, pN1, pN2 and pN3 were 100%, 82.4%, 72.7% and 9.1%, respectively. Conclusion: VEIL seems to offer appropriate long term oncological control with minimal morbidity. In the absence of non-invasive stratification measures such as dynamic sentinel node biopsy, VEIL emerged as the alternative for the management of non-bulky lymph nodes in penile cancer.

https://doi.org/10.1590/s1677-5538.ibju.2023.0065

Orientación al futuro y morosidad académica como instrumentos de predicción del rendimiento académico en estudiantes de preparatoria y universidad del noroeste de México
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Pérez-Ríos, Rubén

; Barrera-Hernández, Laura Fernanda

; Echeverría-Castro, Sonia Beatriz

; Sotelo-Castillo, Mirsha Alicia

Revista Electrónica Educare

Journal Metrics
- Sobre o periódico
- SciELO Analytics

aug 2023, Volume 27 N. 2 Pages 170 - 186

Abstract: Pt Es En | Text: Pt Es En | PDF: Pt | PDF: Es | PDF: En

Resumo Introdução. O desempenho acadêmico desempenha um papel importante na aprendizagem e a aquisição de conhecimentos pessoais que orientam os alunos para um desenvolvimento efetivo em suas vidas pessoais e profissionais. Diversos fatores influenciam sua determinação e contribuem para conhecer o estado de uma educação de qualidade. Objetivo. O objetivo desta pesquisa é determinar as relações entre orientação futura, atraso acadêmico e seu efeito no desempenho acadêmico, e comparar os resultados com base no gênero e nível acadêmico dos estudantes. Metodologia. Este estudo não-experimental, transversal e explicativo contou com a participação de 453 alunos que responderam a um instrumento que incluía escalas validadas de orientação futura e atraso. O desempenho acadêmico foi medido por meio da média acumulada de notas. Resultados. Foram encontradas diferenças significativas em relação ao gênero e nível acadêmico. Os resultados indicam que o desempenho acadêmico de alunos do ensino médio e universitário está positivamente associado à orientação para o futuro e negativamente associado à atraso acadêmico. Os resultados do modelo estrutural sugerem que a orientação ao futuro e o atraso acadêmico predizem o desempenho acadêmico. Discussão. Esses resultados confirmam a influência que as variáveis pessoais têm no desempenho acadêmico e reafirmam o valor da orientação ao futuro na compreensão do sucesso acadêmico dos alunos.

Resumen Introducción. El rendimiento académico juega un importante papel para el aprendizaje y la adquisición de conocimientos personales que orientan hacia un eficaz desenvolvimiento en la vida del estudiantado y su futuro desarrollo profesional, diversos factores tienen influencia en su determinación, y coadyuvan a conocer el estado de la calidad educativa. Objetivo. La presente investigación tuvo como objetivo de determinar las relaciones entre la orientación al futuro, la morosidad académica y el efecto que tienen sobre el rendimiento académico y comparar los resultados en función del sexo y nivel académico. Metodología. A partir de un estudio con diseño no experimental, transeccional, explicativo, participaron 453 estudiantes, quienes respondieron a un instrumento que incluyó escalas validadas de orientación al futuro y morosidad académica, el rendimiento académico se midió a través del promedio acumulado de calificaciones. Resultados. Se presentaron diferencias significativas respecto a sexo y nivel académico. Los resultados indican que el rendimiento académico del estudiantado de preparatoria y universidad se asocia positivamente con la orientación al futuro y de forma negativa con la morosidad académica. Los resultados del modelo estructural sugieren que la orientación al futuro y morosidad académica predicen el rendimiento académico. Discusión. Estos hallazgos constatan la influencia que tienen las variables personales sobre el rendimiento académico y reafirman el valor de la orientación al futuro en la comprensión del éxito académico en la población de estudiantes.

Abstract Introduction. Academic performance plays an important role in learning and acquiring personal knowledge that guides students towards effective development in their lives and future careers. Multiple factors influence their determination and contribute to knowing the state of quality education. Objetive. This research aimed to determine the relationship between orientation to the future, academic lag, and their impact on academic performance and to compare the results based on sex and academic level. Methodology. A total of 453 students participated in this non-experimental, cross-sectional, explanatory study and completed an instrument that included validated scales of orientation to the future and academic lag. Academic performance was measured by the accumulated average of grades. Results. The results show significant differences regarding sex and academic level. They also indicate that the academic performance of high school and college students is positively associated with orientation to the future and negatively with academic lag. The results of the structural model suggest that orientation to the future and academic lag predict academic performance. Discussion. These findings confirm the influence of personal variables on academic performance and reaffirm the value of orientation to the future in understanding students’ academic success.

https://doi.org/10.15359/ree.27-2.15876

Cyclonic circulation and climatology of SST, CHL and wind stress curl in a semi-enclosed bay (Bahía de La Paz, Gulf of California, Mexico)
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Beier, Emilio

; Castro, Rubén

; Godínez, Víctor M.

Atmósfera

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2023, Volume 36 N. 2 Pages 207 - 224

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

ABSTRACT The first direct current observations (with the Lowering Acoustic Doppler Current Profiler [LADCP] and surface drifters) in Bahía de La Paz, in the southwestern Gulf of California (GC), concur with previous reports that the main dynamical feature during summer is a closed cyclonic circulation. However, we found that geostrophic calculations overestimate the speed of the orbital velocity: actual speeds (0.20-0.25 m s-1) were ~25-40% lower than those estimated from geostrophic balance (0.25-0.35 m s-1). The reason is that the centrifugal force cannot be neglected in this case. The mean rotation period during ship-borne observations in August 2004 was ~1.4 days, but it varied in the time that surface drifters were inside the bay, from ~1-2 days in June-July to ~2.5-3 days in September-October. The analysis of satellite data (wind velocity, sea surface temperature and chlorophyll) shows that from May to September the wind stress curl is strong and cyclonic, and the surface of the bay is cooler and richer than the adjacent Gulf of California waters, which could be attributed to the positive wind stress curl. This positive wind stress curl on the bay is part of a larger-scale positive wind stress curl distribution that surrounds the southern part of the Baja California Peninsula during summer, probably enhanced in the bay by local topography features. Although there is an exchange of water between the bay and the GC, its effect on the dynamics is poorly known.

RESUMEN Las primeras observaciones directas de corrientes (con el Perfilador de Corriente Acústico Doppler y derivadores superficiales) en la Bahía de La Paz, situada al suroeste del Golfo de California (GC), coinciden con estudios anteriores en que la principal característica dinámica durante el verano es una circulación ciclónica cerrada. Sin embargo, encontramos que los cálculos goestróficos sobrestiman a las velocidades de rotación: las velocidades observadas (0.20-0.25 m s-1) fueron ~25-40% más bajas que las estimadas a partir del balance geostrófico (0.25-0.35 m s-1). La razón es que en este caso no se puede despreciar la fuerza centrífuga. El período medio de rotación durante las observaciones a bordo del buque en agosto de 2004 fue de ~1.4 días, pero varió durante el tiempo en que los derivadores estuvieron en la bahía, de ~1-2 días en junio-julio a 2.5-3 días en septiembre-octubre. Los análisis satelitales (velocidad del viento, temperatura superficial del mar y clorofila) muestran que, de mayo a septiembre, el rotacional del esfuerzo del viento fue intenso y ciclónico, y la superficie de la bahía fue más fría y más rica que las aguas adyacentes del golfo, lo cual puede atribuirse al rotacional del esfuerzo del viento positivo. Este rotacional del esfuerzo del viento positivo sobre la bahía, es parte de una distribución del rotacional del esfuerzo del viento positivo de mayor escala que rodea la parte sur de la península de Baja California durante el verano, probablemente aumentado en la bahía por las características topográficas locales. Aunque existe un intercambio de agua entre la bahía y el GC, su efecto sobre la dinámica es poco conocido.

https://doi.org/10.20937/atm.53093

Development and characterization of photoprotective nanoemulsions containing Babassu (Orbignya phalerata Mart.) lipophilic extract
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Vieira, Italo Rennan Sousa

; Silva, Ana Clara Lima Nunes

; Castro, Natalia Ruben

; Pinto, Cristal dos Santos Cerqueira

; Freitas, Zaida Maria Faria de

; Ricci-Júnior, Eduardo

; Santos, Elisabete Pereira dos

; Camara, Adriana Leandro

; Costa, Maria Célia Pires

; Adam Conte-Junior, Carlos

Brazilian Journal of Pharmaceutical Sciences

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2023, Volume 59 elocation e23011

Abstract: En | Text: En | PDF: En

Abstract Oil-in-water photoprotective nanoemulsions (NEs) were developed using Babassu (BBS) lipophilic extract, nonionic surfactants, and low concentrations of organic sunscreens by ultrasonic processing. BBS extract was chosen due to its suitable physicochemical properties (acidity index, peroxide index, refraction index, and relative density) and predominance of saturated fatty acids, identified by gas chromatography-mass spectrometry (GC-MS), which promote biological activities and high oxidative stability. NEs were characterized by mean droplet size, morphology, polydispersity index (PdI), pH, and organoleptic properties, and the physical stability of the NEs was evaluated for 120 days at room temperature. The sun protection factor (SPF) was determined, and the photostability and in vitro cytotoxicity assays were performed for NEs. All NEs remained stable for 120 days, with a droplet size <150 nm and a monomodal distribution profile. The pH values were compatible with the skin’s pH. NE3 showed a spherical morphology, with a mean droplet size of 125.15 ± 0.16 nm and PdI of 0.145 ± 0.032. NE3 containing BBS extract and sunscreens presented an SPF of 35.5 ± 3.0, was photostable after 6 h of radiation and was non-cytotoxic to fibroblast cells. Thus, NE3 could be considered a promising formulation for developing synergic plant-extract sunscreen photoprotective products for the market.

https://doi.org/10.1590/s2175-97902023e23011

Path analysis between fruit biometric traits of Caesalpinia ebano H. Karst
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Blanco-Fuentes, Rubén Darío

; Castro-Torres, Leider José

; Espitia-Camacho, Miguel Mariano

; Araméndiz-Tatis, Hermes

; Cardona-Ayala, Carlos

Revista de Ciencias Agrícolas

Journal Metrics
- Sobre o periódico
- SciELO Analytics

dec 2022, Volume 39 N. 2 Pages 186 - 197

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

ABSTRACT Caesalpinia ebano is a tropical tree from Colombia; its conservation status is in the endangered category since the remaining populations are suffering genetic erosion. The objective of this study was to estimate the phenotypic (rF) and genetic (rG) correlations among biometric fruit and seeds traits, and the path analysis for the fruit weight. Ten trees (treatments) were evaluated under the random effects model, with 10 fruits/tree as replications. There was significant variability between trees for seven quantitative traits. The fruit weight showed genetic correlations with six traits (0.56* > rG < 1.00**). The number and weight of the seeds per fruit showed high genetic correlations with five traits (rG ≥ 0.85**). The weight of the seeds per fruit exerted direct and indirect effects of greater importance in determining the fruit weight. It is possible to improve the production and physiological quality of the seed by directly selecting trees with fruits of greater seed weight.

RESUMEN Caesalpinia ebano es un árbol tropical de Colombia, su estado de conservación se encuentra en la categoría de peligro de extinción debido a la erosión genética. El objetivo del estudio fue estimar las correlaciones fenotípicas (rF) y genéticas (rG) entre características biométricas del fruto y semillas y el análisis de sendero para el peso del fruto. Se evaluaron 10 árboles (tratamientos) bajo el modelo de efectos aleatorios, con 10 frutos/árbol como repeticiones. Se presentó variabilidad significativa entre árboles, para siete de las características cuantitativas. El peso del fruto mostró correlaciones genéticas (0,56* > rG < 1,00**) con seis características. El número y peso de las semillas por fruto acusaron altas correlaciónes genéticas (rG ≥ 0,85**) con cinco características. El peso de las semillas por fruto ejerció los efectos directos e indirectos de mayor importancia en la determinación del peso del fruto. Es posible mejorar la producción y la calidad fisiológica de la semilla, seleccionando directamente árboles con frutos de mayor peso de semillas.

https://doi.org/10.22267/rcia.223902.187

Transformación de adenocarcinoma acinar de próstata a escamoso. Reporte de caso y revisión de literatura
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Macías de Hoyos, Héctor

; Muñoz-Lumbreras, Eddy Gabriel

; Arias-Patiño, José Juan Guadalupe

; García-Ortiz, Ramiro

; Aragón-Castro, Marco Antonio

; Ruvalcaba-Oceguera, Guillermo Enrique

; Gutiérrez-Rosales, Rubén

; Santana-Maya, Erick

; Dolores-Velázquez, Rigoberto

; Rosales-Velázquez, César Eduardo

Revista mexicana de urología

Journal Metrics
- Sobre o periódico
- SciELO Analytics

jun 2022, Volume 82 N. 3 elocation e09

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

Abstract Clinical case description: A 65-year-old male who came to the emergency room due to non-clot-forming holomictional hematuria. Diagnostic approach is started, identifying in the medical history the diagnosis of prostate adenocarcinoma stage 4 without radiotherapy. Due to the patient's symptoms, surgical treatment is performed, where squamous carcinoma of the prostate is reported. Therefore, the evolution and treatment of the patient is monitored Relevance: It is known that patients with squamous cell carcinoma of the prostate have a short survival from the moment of diagnosis. There are few case reports on this entity and its treatment of choice. Clinical implications: There is not a enough data to determine the management of this type of patients. The reported incidence is minimal and there is no specific treatment for these patients. Conclusion: Squamous cell carcinoma of the prostate is a rare entity. There is little information on the possible management and prognosis in this type of cancer is adverse. Therefore, it is of the utmost importance to open new areas of research on this type of cancer.

Resumen Descripción del caso clínico: Hombre de 65 años, que acude a consulta de urgencias, por presentar hematuria holomiccional no formadora de coágulos. Se inicia abordaje diagnóstico, identificando antecedente de adenocarcinoma de próstata EC IV. Sin antecedente de tratamiento con radioterapia. Debido a sintomatología de paciente se realiza tratamiento quirúrgico, donde se reporta carcinoma escamoso de próstata. Por lo que se da seguimiento a evolución y tratamiento de paciente. Relevancia: Se conoce que los pacientes con carcinoma escamoso de próstata tienen una sobrevida corta desde el momento del diagnóstico. Se tienen pocos reportes de casos sobre esta entidad y su tratamiento de elección. Implicaciones clínicas: No se cuenta con una información suficiente que nos determinen el manejo de este tipo de pacientes. La incidencia reportada es mínima y no existe un tratamiento específico para estos pacientes. Conclusiones: El carcinoma de células escamosas de la próstata es una entidad rara. Se cuenta con poca información sobre el manejo y el pronóstico en este tipo de cáncer es desfavorable. Es de suma importancia abrir nuevas vertientes de investigación sobre este tipo de cáncer.

https://doi.org/10.48193/revistamexicanadeurologa.v82i3.858

Design of mixture experiments for the analysis of viscosity behavior of sulfonated polyacrylamide solutions (ATBS) with changes in salinity, hardness, and polymer concentration
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Herrera, Julia

; Quintero, Henderson

; Maya, Gustavo

; Castro, Rubén

; Prada, Luis Carlos

; Maldonado, Laura

; Villar, Álvaro

; Pérez, Eduar

DYNA

Journal Metrics
- Sobre o periódico
- SciELO Analytics

jun 2022, Volume 89 N. 221 Pages 60 - 67

Abstract: Es En | Text: Es En | PDF: Es | PDF: En

Resumen Un Diseño de experimentos de mezcla (SCMD) fue usado para determinar el efecto de la dureza y salinidad del agua de preparación en la viscosidad final de una solución polimérica con modificaciones con unidades ATBS (Acrilamidas-Terbutil Sulfonadas). Con los resultados experimentales del SCMD se construyó un modelo cuadrático especial, y se implementó un modelo numérico que permite determinar la concentración de polímero necesaria para alcanzar la viscosidad deseada, dependiendo de la salinidad y dureza del agua de preparación. Adicionalmente, el modelo numérico desarrollado fue validado con datos experimentales de la literatura. Este puede predecir la concentración requerida de un polímero modificado con ATBS para alcanzar la viscosidad deseada con un 95% de confiabilidad en los rangos evaluados. El modelo numérico de Newton-Raphson desarrollado usando un SCMD es el primero reportado en la literatura que permite determinar la concentración de polímeros ATBS necesaria para conocer un rango de viscosidad

Abstract A simple centroid mixture design (SCMD) method was used to determine the effect of the salinity and hardness of preparation water on final viscosity of a polymer solution with Acrylamide-Tert-butyl-Sulfonated units (ATBS). The experimental results of SCMD were used to build a special quadratic model and a numerical model was implemented for determining the polymer concentration necessary to reach the desired viscosity, depending on the salinity and hardness of the preparation water. Furthermore, the numerical model developed was validated with experimental data from the literature. It can predict the required concentration of a modified polymer (ATBS) to achieve the desired injection viscosity of the polymeric solution, with 95% reliability in the ranges evaluated. The Newton-Raphson numerical model developed using an SMCD is the first reported in the literature that allows determining the ATBS polymer concentration necessary to define the viscosity range.

https://doi.org/10.15446/dyna.v89n221.100020 23 downloads

10.

Síndrome de Joubert asociado a variantes patogénicas en el gen TMEM67
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Martínez-García, Jesús Javier

; Corvera-Villaseñor, Sonia

; Dueñas-Arias, Jesús Ernesto

; Vega-Castro, Rossela de Jesús

; Beltrán-Rivas, Rubén

Revista mexicana de pediatría

Journal Metrics
- Sobre o periódico
- SciELO Analytics

apr 2022, Volume 89 N. 2 Pages 81 - 85

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

Abstract: Introduction: Joubert syndrome (JS) is an autosomal recessive congenital ciliopathy, which has been associated with a mutation in the TMEM67 gene. JS is characterized by delayed psychomotor development, ocular alterations, as well as renal, skeletal, and hepatic manifestations. Magnetic resonance imaging (MRI) identifies the pathognomonic alteration, which is a malformation in the cerebellum and brainstem, with a characteristic image of the “molar tooth sign” (MTS). Objective: to describe the clinical picture of a pediatric SJ patient in whom variants in the TMEM67 gene were detected. Case report: three-year-old male with delayed psychomotor development, hypotonia, isometropic amblyopia, strabismic amblyopia, and downward vertical nystagmus. In the MRI, the MTS was observed since the superior cerebellar peduncles were found to be elongated. By genetics, through whole exome sequencing, two variants in the heterozygous state of the TMEM67 gene were found. Conclusions: children with delayed psychomotor development and nystagmus should undergo a comprehensive ocular, neuroimaging, and genetic examination to identify the diagnosis of JS.

Resumen: Introducción: el síndrome de Joubert (SJ) es una ciliopatía congénita autosómica recesiva que se ha asociado a mutación en el gen TMEM67. El SJ se caracteriza por retraso en desarrollo psicomotor, alteraciones oculares así como manifestaciones a nivel renal, esquelético y hepático. Por resonancia magnética (RM) se identifica la alteración patognomónica que es una malformación en cerebelo y en tronco encefálico, con imagen característica “signo del diente molar” (SDM). Objetivo: describir el cuadro clínico de un paciente con SJ en quien se identificó variantes en el gen TMEM67. Caso clínico: varón de tres años con retraso en el desarrollo psicomotor, hipotonía, ambliopía isometrópica, ambliopía estrábica y nistagmo vertical hacia abajo. En la RM se observó el SDM, ya que los pedúnculos cerebelosos superiores se encontraron alargados. Desde el punto de vista genético, mediante secuenciación del exoma completo, se encontraron dos variantes en estado heterocigoto compuesto del gen TMEM67. Conclusiones: en niños con retraso en el desarrollo psicomotor y nistagmos deben someterse a una exploración exhaustiva ocular, de neuroimagen y genético a fin de determinar si se trata de SJ.

https://doi.org/10.35366/107503

11.

In vitro cytotoxic activity of bark extracts from Pinus durangensis Martinez and Quercus sideroxyla Bonpl
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Soto-García, Marcela

; Rosales-Castro, Martha

; García-Sánchez, José Rubén

; Rivas-Arreola, María José

Biotecnia

Journal Metrics
- Sobre o periódico
- SciELO Analytics

apr 2022, Volume 24 N. 1 Pages 55 - 61

Abstract: Es En | Text: Es En | PDF: Es | PDF: En

Resumen En la actualidad, los compuestos bioactivos de las plantas representan un gran potencial para descubrir un fármaco novedoso que pueda actuar en el tratamiento del cáncer. Se ha informado que diferentes especies de pino y roble poseen actividades citotóxicas contra varias líneas celulares cancerosas. En el presente estudio, se evaluó el perfil fenólico y las actividades citotóxicas de extractos crudos y orgánicos de la corteza de P. durangensis y Q. sideroxyla. Algunos compuestos, como la taxifolina y dimeros de procianidina, fueron identificados en extractos de ambas especies mediante ESI-MS. La actividad citotóxica se realizó en MDA-MB-231 (cáncer de mama), HeLa (cáncer de cuello uterino), MCF-10A (células no tumorales de mama) y HSF-1184 (células de fibroblastos de piel humana) mediante ensayo MTT. Todos los extractos mostraron un efecto citotóxico dependiente de la dosis contra las líneas celulares cancerosas y poca o ninguna actividad contra las no tumorales. Los resultados proporcionan información importante sobre la actividad citotóxica de extractos de corteza de P. durangensis y Q. sideroxyla. Este fuerte efecto citotóxico representa una oportunidad para la valorización de un subproducto de la industria de la madera.

Abstract Nowadays, plants bioactive compounds represent a great potential for discovering novel drugs that could act in cancer treatment. Previous word reports that different pine and oak species possess cytotoxic activities against various cancer cell lines. The present study evaluated the phenolic profile and cytotoxic activities of crude and organic extracts from P. durangensis and Q. sideroxyla bark. Among ESI-MS identified compounds in extracts from both species, are taxifolin and procyanidin dimers. The cytotoxic activity was performed on MDA-MB-231 (breast cancer), HeLa (cervix cancer), MCF-10A (breast non-tumorous cell), and HSF-1184 (human skin fibroblast cells) by MTT assay. All extracts showed a dose-dependent cytotoxic effect against cancer cell lines and small or no activity against the non-tumorous cells. The results provide important information about the cytotoxic activity of bark extracts from P. durangensis and Q. sideroxyla. This strong cytotoxic effect represents an opportunity for the valorization of a by-product of the wood industry.

https://doi.org/10.18633/biotecnia.v24i1.1520 14 downloads

12.

Bilateral vocal fold paralysis after COVID-19 infection. Another neuro-invasive manifestation? Case series
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Correa Barrera, Juan José

; Gómez del Pulgar Vázquez, Blanca

; Vinasco, Adriana Orozco

; Sánchez Zamora, Purificación

; Sánchez Solano, Sonia

; Martos Gisbert, Natalia

; Saz Castro, Rubén

; Orozco Vinasco, David

; San Juan Álvarez, Mónica

; García Rueda, Antonio

Colombian Journal of Anestesiology

Journal Metrics
- Sobre o periódico
- SciELO Analytics

mar 2022, Volume 50 N. 1 elocation e502

Abstract: Es En | Text: Es En | PDF: Es | PDF: En

Resumen El agente causal de la enfermedad por coronavirus (COVID-19), asociado a síndrome respiratorio agudo grave (SARS-CoV-2), genera un espectro de síntomas que afectan fundamentalmente el sistema respiratorio, el sistema nervioso central (SNC), la regulación hemostásica y el sistema inmune. La parálisis bilateral de cuerdas vocales (PBCV) es una entidad cuya incidencia en infectados se desconoce, bien porque no se presentan durante el tiempo suficiente o por la dificultad de establecer una causalidad directa con el virus. La infección vírica, como causa de PBCV, está descrita en la literatura y se sospecha que una parte de los casos idiopáticos corresponden a infecciones víricas no diagnosticadas. Aunque los mecanismos neurotrópicos no están completamente aclarados para el SARS-CoV-2, existen indicios sólidos para asegurar su potencial neuroinvasivo. Las causas traumáticas, neoplásicas y neurológicas son las etiologías más comunes de PBCV, sin que se pueda descartar el origen vírico. Es plausible una causalidad entre el COVID-19 y la PBCV, que requerirá mayores estudios a corto y largo plazo. Presentamos una serie de casos que sostienen y discuten la hipótesis en consideración.

Abstract The agent that causes the coronavirus disease (COVID-19), associated with the severe acute respiratory syndrome (SARS-CoV-2), produces a spectrum of symptoms that mainly affect the respiratory system, the central nervous system (CNS), the regulation of hemostasis and the immune system. Bilateral vocal fold paralysis (BVFP) is a condition of unknown incidence among infected patients, either because it is short-lived or because of the difficulty in establishing a direct cause to the virus. Viral infection has been described in the literature as a cause of BVFP and there is the suspicion that a proportion of the idiopathic cases are due to undiagnosed viral infections. Although the neurotropic mechanisms for SARS-CoV-2 remain unclear, there is strong evidence to ensure its neuroinvasive potential. The most frequent etiologies of BVFP are trauma, neoplasm, and neurological, but a viral origin should not be ruled out. Causality between COVID-19 and BVFP is plausible and will require further study in the short and long term. We present a case series that support and discuss the hypothesis under consideration.

https://doi.org/10.5554/22562087.e978 227 downloads

13.

Comparison of machine learning techniques to predict the compressive strength of concrete and considerations on model generalization
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Paixão, Rafael Christian Fonseca da

; Penido, Rúben El-Katib

; Cury, Alexandre Abrahão

; Mendes, Júlia Castro

Revista IBRACON de Estruturas e Materiais

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2022, Volume 15 N. 5 elocation e15503

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo A resistência à compressão do concreto é uma propriedade essencial para garantir a segurança de uma estrutura. No entanto, estimar este valor é atualmente um processo trabalhoso e impreciso, uma vez que o a dosagem é baseada em métodos empíricos e sua confirmação em laboratório demanda tempo e recursos. Nesse contexto, este trabalho tem como objetivo avaliar modelos de Aprendizado de Máquina (ML) para predizer a resistência à compressão do concreto a partir de seus componentes. Para tanto, um banco de dados da literatura foi utilizado como entrada para quatro modelos de ML: Extreme Gradient Boosting (XGBoost), Regressão de Vetor de Suporte (SVR), Redes Neurais Artificiais (ANN) e Processo Gaussiano de Regressão (GPR). A precisão dos modelos foi avaliada por meio de validação cruzada (10-fold) e medida com as métricas de R2, Erro Médio Absoluto (MAE) e a Raiz do Erro Quadrático Médio (RMSE). Posteriormente, um novo banco de dados foi montado com traços da literatura e utilizado para validar os modelos anteriores. Na etapa de criação do modelo, todos os algoritmos obtiveram resultados semelhantes e satisfatórios, com MAE entre 1,96-2,26 MPa e R2 variando de 0,79 a 0,83. No entanto, na etapa de validação, a precisão dos modelos caiu drasticamente, com o MAE crescendo para 3,04-4,04 MPa e o R2 diminuindo para 0,37-0,59. As ANN e o GPR mostraram os melhores resultados, enquanto a SVR teve as piores previsões. Este trabalho mostrou que as ferramentas de ML são técnicas promissoras para prever a resistência à compressão do concreto, porém, deve-se ter cuidado com os dados de entrada para garantir que os modelos não sejam sobreajustados (overfitted) a uma determinada região, conjunto de materiais ou tipo de concreto.

Abstract The compressive strength of concrete is an essential property to ensure the safety of a concrete structure. However, estimating this value is usually a laborious and uncertain process since the mix design is based on empirical methods and its confirmation in the laboratory demands time and resources. In this context, this work aims to evaluate Machine Learning (ML) models to predict the compressive strength of concrete from its constituents. For this purpose, a dataset from the literature was used as input to four ML models: Extreme Gradient Boosting (XGBoost), Support Vector Regression (SVR), Artificial Neural Networks (ANN) and Gaussian Process Regression (GPR). The accuracy of the models was evaluated through 10-fold cross-validation, and quantified by R2, Mean Absolute Error (MAE), and Root-Mean-Square Error (RMSE) metrics. Subsequently, a new dataset was put together with mixtures from the literature and used to validate the previous models. In the model creation step, all algorithms obtained similar and positive results, with MAE between 1.96-2.26 MPa and R2 varying from 0.79 to 0.83. However, in the validation step, the accuracy of the models dropped sharply, with MAE growing to 3.04-4.04 MPa and R2 decreasing to 0.37-0.59. ANN and GPR showed the best results, while SVR had the worst predictions. This work showed that ML tools are promising techniques to predict the compressive strength of concrete. However, care must be taken with the input data to guarantee that models are not overfitted to a given region, set of materials, or type of concrete.

https://doi.org/10.1590/s1983-41952022000500003

14.

La salud mental de los trabajadores de salud en Guatemala durante la pandemia de COVID-19: resultados de base del estudio de cohortes HÉROES
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Paniagua-Ávila, Alejandra

; Ramírez, Dorian E.

; Barrera-Pérez, Aida

; Calgua, Erwin

; Castro, Claudia

; Peralta-García, Ana

; Mascayano, Franco

; Susser, Ezra

; Alvarado, Rubén

; Puac-Polanco, Victor

Revista Panamericana de Salud Pública

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2022, Volume 46 elocation e79

Abstract: Pt En Es | Text: Pt En Es | PDF: Pt | PDF: En | PDF: Es

RESUMO Objetivos. Avaliar a prevalência basal de condições de saúde mental e exposições associadas em uma coorte de trabalhadores da saúde (TS) na Guatemala. Métodos. Analisamos as informações da linha de base do estudo on-line sobre trabalhadores da saúde e a COVID-19 (HEROES), realizado em 2020 na Guatemala. Os desfechos incluíram angústia debilitante e sintomas de depressão. As exposições incluíram experiências com a COVID-19, características sociodemográficas e características do trabalho. Usamos em nossas análises modelos de regressão bruta e ajustada de Poisson. Resultados. Dos 1801 TS que concordaram em participar, 1522 (84,5%) preencheram o questionário, sendo que 1014 (66,8%) eram mulheres. Dentre esses participantes, 59,1% (intervalo de confiança [IC] de 95%=56,6; 61,5) apresentaram resultado positivo na triagem de angústia debilitante e 23% (IC 95%=20,9, 25,2) apresentaram resultado positivo para sintomas de depressão moderados a graves. Experiências com COVID-19, e características sociodemográficas e de trabalho apresentaram associação com os resultados do estudo. Os participantes que estavam preocupados com infecção por COVID-19 apresentaram maior risco de angústia debilitante (risco relativo [RR]=1,47; IC95%=1,30; 1,66) e sintomas de depressão (RR=1,51; IC 95% =1,17; 1,96). Da mesma maneira, os participantes mais jovens apresentaram alto risco de apresentarem angústia debilitante (RR=1,80; IC 95%=1,24; 2,63) e sintomas de depressão (OR=4,58; IC 95%=1,51; 13,87). Conclusões. Condições de saúde mental são altamente prevalentes entre os guatemaltecos.

ABSTRACT Objectives. To assess the baseline prevalence of mental health conditions and associated exposures in a cohort of health care workers (HCWs) in Guatemala. Methods. We analyzed baseline information from the 2020 Web-based COVID-19 Health Care Workers Study (HEROES)–Guatemala. Outcomes included mental distress and depressive symptoms. Exposures included COVID-19 experiences, sociodemographic characteristics, and job characteristics. We used crude and adjusted Poisson regression models in our analyses. Results. Of the 1801 HCWs who accepted to participate, 1522 (84.5%) completed the questionnaire; 1014 (66.8%) were women. Among the participants, 59.1% (95% confidence interval [CI] = 56.6, 61.5) screened positive for mental distress and 23% (95% CI = 20.9, 25.2) for moderate to severe depressive symptoms. COVID-19 experiences, sociodemographic characteristics, and job characteristics were associated with the study outcomes. Participants who were worried about COVID-19 infection were at higher risk of mental distress (relative risk [RR] = 1.47; 95% CI = 1.30, 1.66) and depressive symptoms (RR = 1.51; 95% CI = 1.17, 1.96). Similarly, the youngest participants were at elevated risk of mental distress (RR = 1.80; 95% CI = 1.24, 2.63) and depressive symptoms (OR = 4.58; 95% CI = 1.51, 13.87). Conclusions. Mental health conditions are highly prevalent among Guatemalan.

RESUMEN Objetivos. Evaluar la prevalencia de base de los trastornos de salud mental y exposiciones conexas en una cohorte de trabajadores de salud de Guatemala. Métodos Se analizó la información de base del estudio HÉROES (por COVID-19 HEalth caRe wOrkeRs Study, sobre los trabajadores de salud durante la pandemia) en Guatemala, realizado en línea en el 2020. Las variables de resultado fueron malestar psicológico y síntomas depresivos. Las exposiciones incluyeron experiencias con la COVID-19, características sociodemográficas y características del trabajo. En los análisis se utilizaron modelos de regresión de Poisson brutos y ajustados. Resultados. De los 1801 trabajadores de salud que aceptaron participar, 1522 (84,5%) completaron el cuestionario; 1014 (66,8%) eran mujeres. De los participantes, 59,1% (intervalo de confianza de 95% [IC 95%] = 56,6-61,5) tuvo un tamizaje positivo para malestar psicológico y 23% (IC 95% = 20,9-25,2) para síntomas depresivos de moderados a graves. Las experiencias con la pandemia de COVID-19, las características sociodemográficas y las características del trabajo se correlacionaron con las variables de resultado del estudio. Los participantes que estaban preocupados por el contagio de la COVID-19 tuvieron un mayor riesgo de malestar psicológico (riesgo relativo [RR] = 1,47; IC 95% = 1,30-1,66) y síntomas depresivos (RR = 1,51; IC 95% = 1,17-1,96). Asimismo, los participantes más jóvenes presentaban un riesgo alto de malestar psicológico (RR = 1,80; IC 95% = 1,24-2,63) y síntomas depresivos (razón de posibilidades [OR] = 4,58; IC 95% = 1,51-13,87). Conclusiones. Las afecciones de salud mental tienen una prevalencia sumamente alta en los trabajadores de salud de Guatemala.

https://doi.org/10.26633/rpsp.2022.79

15.

Evidence of submesoscale coastal eddies inside Todos Santos Bay, Baja California, México
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Navarro-Olache, Luis Felipe

; Hernandez-Walls, Rafael

; Castro, Ruben

; Durazo, Reginaldo

; Flores-Vidal, Xavier

; Flores-Morales, Ana Laura

; Martin-Atienza, Beatriz

Ocean and Coastal Research

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2022, Volume 70 Suppl. 1 elocation e22038

Abstract: En | Text: En | PDF: En

Abstract Submesoscale eddies (1-10 km diameter) were identified using surface velocity observations obtained from a high-frequency radar system (HFR) operated in Todos Santos Bay (TSB), Baja California, Mexico. Eddies were detected through a special case of the Okubo-Weiss parameter for divergent flows in the form of eigenvalues of the Jacobian matrix. The detection method, applied for a surface velocity grid, shows encouraging results in the recognition and tracking of submesoscale features in TSB. The detection method is rapid and efficient. Results show the formation and persistence of an eddy structure inside the Bay in December 6, 2010, displaying a trajectory from NE to SW until disappearing at the center of the Bay. The eddy is approximately 4 km in diameter with a frequency of ~0.1f (f is the Coriolis parameter). The real part of the Okubo-Weiss parameter ranged between − 4 × 10 − 9 to − 1 × 10 − 9 s − 2, and outlined the eddy for approximately 9 hours. Although it is difficult to identify the origin of the detected submesoscale eddy, its appearance coincided with a drop in relative atmospheric humidity suggesting land-ocean Santa Ana winds as a possible generating mechanism.

https://doi.org/10.1590/2675-2824070.22020lfno

Showing

itens per page

Page of 9 Next

Select one or more results

All Alphabetic

Results

Comparative chart Download CSV

Statistics of

Send result

To*

Use ; (semicolon) to insert more emails.

Send to email

This page

Selected records

All references (max. 300)

Your email

Subject

Comments

Export format:

RIS (for EndNote, ProCite, Reference Manager, RefWorks, Citavi, etc.)

BibTeX

Citation

CSV (for Excel, etc)

Export:

This page

Selected itens

All references (max. 2000)

Sem resultados

No documents were found for your search

Glossary and search help

You can enrich your search in a very simple way. Use the search indexes combined with the connectors (AND or OR) and specify more your search.

For example, if you want to search for articles about
cases of dengue in Brasil in 2015, use:
ti:dengue and publication_year:2015 and aff_country:Brasil

See below the complete list of search indexes that can be used:

Index code	Element
ti	article title
au	author
kw	article keywords
subject	subject (title words, abstract and keywords)
ab	abstract
ta	journal short title (e.g. Cad. Saúde Pública)
journal_title	journal full title (e.g. Cadernos de Saúde Pública)
la	publication language code (e.g. pt - Portuguese, es - Spanish)
type	document type
pid	publication identifier
publication_year	publication year of publication
sponsor	sponsor
aff_country	country code of the author's affiliation
aff_institution	author affiliation institution
volume	article volume
issue	article issue
elocation	elocation
doi	DOI number
issn	journal ISSN
in	SciELO colection code (e.g. scl - Brasil, col - Colômbia)
use_license	article usage license code

SciELO - Scientific Electronic Library Online
Rua Dr. Diogo de Faria, 1087 – 9º andar – Vila Clementino 04037-003 São Paulo/SP - Brasil
Email: scielo@scielo.org

All the contents of this site www.scielo.br, except where otherwise noted, is licensed under a Creative Commons Attribution License.
more »