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1.
Foods ; 13(2)2024 Jan 22.
Artículo en Inglés | MEDLINE | ID: mdl-38275720

RESUMEN

The pursuit of developing healthier pasta products without compromising technological properties involves a strategic approach via the customization of raw material formulations and the integration of grain germination and extrusion processes. This study explores the impact of incorporating sprouts from quinoa (Chenopodium quinoa Willd) and kiwicha (Chenopodium pallidicaule Aellen) on the physicochemical properties of pasta by employing a centroid mixture design. The desirability function was utilized to identify the optimal ingredient proportions necessary to achieve specific objectives. The study identified optimal formulations for two pasta variations: pasta with the substitution of sprouted quinoa and cushuro powder (PQC), and pasta with partial substitution of sprouted kiwicha and cushuro powder (PKC). The optimal formulation for PKC was determined as 70% wheat flour (WF), 15% sprouted kiwicha flour (SKF), and 15% cushuro powder (CuP), with a desirability score of 0.68. Similarly, for PQC, the optimal formulation comprised 79% WF, 13% sprouted quinoa flour (SQF), and 8% CuP, with a desirability of 0.63. The optimized pasta formulation exhibited longer cooking times (10 and 8 min), increased weight gain (235% and 244%), and minimal loss of solids (1.4 and 1.2%) for PQC and PKC, respectively. Notably, firmness (2.8 and 2.6 N) and breaking strength values (2 and 2.7 N) for PQC and PKC pasta formulations, respectively, were comparable to those of the control sample (2.7 N and 2.6 N for firmness and fracturability, respectively). This research underscores the potential of tailored formulations and innovative processes to enhance the nutritional profile of pasta while maintaining key technological attributes.

2.
Int J Psychol ; 59(3): 390-397, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38266655

RESUMEN

Social leaders and human rights defenders (SLHRD) in Colombia have been under increasing attack for defending the rights of communities affected by violence. From 2016 to 2022, over 600 SLHRD were assassinated, resulting in a serious violation of both individual and community human rights. The media's portrayal of these attacks can shape public perceptions and influence efforts towards peacebuilding and promoting human rights. This study examines the media's framing of violence against SLHRD in Colombia between 2016 and 2020, a period marked by an escalation of violence after the signing of the 2016 peace accord between the Colombian government and the Revolutionary Armed Forces of Colombia (FARC). We analysed 1506 textual publications from seven media outlets using a lexicometric approach and identified two frames of news articles: episodic and thematic. Our findings suggest that the episodic media framing may present a simplistic and non-political perspective of the issue, which can impede peacebuilding efforts, while the thematic frame can raise awareness of violence against SLHRD and promote human rights defence. Our study highlights the media's significant role in shaping public opinion on violence against SLHRD, offering practical implications for advocacy and activism.


Asunto(s)
Derechos Humanos , Medios de Comunicación de Masas , Violencia , Humanos , Colombia , Violencia/prevención & control , Violencia/psicología , Liderazgo , Opinión Pública
3.
Foods ; 12(24)2023 Dec 06.
Artículo en Inglés | MEDLINE | ID: mdl-38137199

RESUMEN

We hypothesized that optimizing the formulation of pasta by incorporating sprouted pseudocereal flours, specifically quinoa (Chenopodium quinoa Willd) or kiwicha (Amaranthus caudatus L.) and cushuro (Nostoc sphaericum Vaucher ex Bornet & Flahault) flours, could offer the potential to simultaneously enhance nutritional quality and health-promoting properties in pasta. In this study, our objective was to optimize the formulation of composite flour (a ternary blend of wheat, sprouted pseudocereal, and cushuro flours) using a mixture composite design to maximize total soluble phenolic compounds (TSPC), γ-aminobutyric acid (GABA), antioxidant activity, and mineral bioaccesilability by reducing phytic acid (PA) content. Two optimal formulations were identified: one consisting of 79% wheat flour (WF), 13% SQF, and 8% CuF (oPQC), and the other composed of 70% WF, 15% SKF, and 15% CuF (oPKC). These optimized pastas exhibited reduced starch content and notably higher levels of total dietary fiber (1.5-3.61-fold), protein (1.16-fold), fat (1.3-1.5-fold), ash (2.2-2.7-fold), minerals (K, Na, Fe, Zn, Mg, Mn, and Ca), PA (3-4.5-fold), TSPC (1.3-1.9-fold), GABA (1.2-2.6-fold), and ORAC (6.5-8.7-fold) compared to control pasta (100% WF). Notably, the glycemic index of oPQC (59.8) was lower than that of oPKC (54.7) and control pasta (63.1). The nutritional profile of the optimized pasta was largely retained after cooking, although some significant losses were observed for soluble dietary fiber (18.2-44.0%), K (47.5-50.7%), Na (42.5-63.6), GABA (41.68-51.4%), TSPC (8-18%), and antioxidant activity (45.4-46.4%). In vitro digestion of cooked oPQC and oPKC demonstrated higher bioaccessible content of GABA (6.7-16.26 mg/100 g), TSPC (257.7-261.8 mg GAE/100 g), Ca (58.40-93.5 mg/100 g), and Fe (7.35-7.52 mg/100 g), as well as antioxidant activity (164.9-171.1 µmol TE/g) in intestinal digestates compared to control pasta. These findings suggest that the incorporation of sprouted pseudocereals and cushuro flour offers a promising approach to enhance the nutritional quality and bioactive content of wheat-based pasta, potentially providing health benefits beyond traditional formulations.

4.
Rev. colomb. psicol ; 32(1): 11-20, Jan.-June 2023. graf
Artículo en Inglés | LILACS-Express | LILACS | ID: biblio-1394969

RESUMEN

Abstract The study traces the historical elements that have influenced the development of political-critical thinking in Colombian Psychology. Four historical periods have been identified and discussed: The intellectual colonialism of Colombian Psychology (1947-1960); the social Psychiatry in the years of La comisión [The commission] (1961-1980); the community Psychology and the coexistence (1980-1991); and the psychosocial studies after recent peace processes between government and armed groups (1991-2018). Colombian political Psychology did not follow a homogeneous and linear development. The reality experienced by Colombians during more than five decades of armed conflict required Psychology to abandon the direct paths of politics and opt for psychosocial studies that promise to be the most radical heirs of a generation of Latin American critical thinking as represented by Ignacio Martín-Baró, Maritza Montero and Silvia Lane.


Resumen El estudio rastrea los elementos históricos que han influido en el desarrollo del pensamiento político-crítico en la psicología colombiana. Se identifican y discuten cuatro periodos históricos: el colonialismo intelectual de la psicología colombiana (1947-1960); la psiquiatría social en los años de La Comisión (1961-1980); la psicología comunitaria y la convivencia (1980-1991); y, finalmente, los estudios psicosociales tras los recientes procesos de paz entre el Gobierno y los grupos armados (1991-2018). La psicología política colombiana no siguió un desarrollo homogéneo y lineal. La realidad vivida por los colombianos durante más de cinco décadas de conflicto armado exigió que la psicología abandonara los caminos directos de la política y optara por los estudios psicosociales que prometen ser los herederos más radicales de una generación de pensamiento crítico latinoamericano representada por Ignacio Martín-Baró, Maritza Montero y Silvia Lane.

5.
Suma psicol ; 30(1)jun. 2023.
Artículo en Español | LILACS-Express | LILACS | ID: biblio-1536902

RESUMEN

Introducción: el maltrato infantil es un problema global que afecta el desarrollo de los niños y las niñas, pudiendo tener consecuencias a lo largo de su vida. A pesar de la necesidad de investigar para erradicar este fenómeno, no se ha realizado una aproximación bibliométrica de sus avances recientes. Método: este estudio examinó 16 708 artículos sobre maltrato infantil indexados en la Web of Science entre 1991 y 2020 para establecer las tendencias de investigación. Resultados: el maltrato infantil es un campo activo, influenciado principalmente por Estados Unidos, Canadá y Reino Unido, y revistas de la categoría estudios de la familia, especialmente Child Abuse & Neglect. Los artículos más relevantes abordan el tema como parte de las Experiencias Adversas en la Infancia o se centran en su evaluación. Considerando los artículos más relevantes, los temas más estudiados (sujetos, investigación, maltrato y tipos de maltrato, familia y parentalidad, y trastornos) y los principales focos (maltrato, investigación, sexo, reportes y abuso sexual), es posible que el área se esté reestructurando desde la perspectiva del ecobiodesarrollo, con énfasis en el tratamiento y la prevención. Se discuten sus implicaciones teóricas y prácticas. Conclusiones: este estudio actualiza las tendencias de investigación en el campo del maltrato infantil, proporcionando un panorama comprensivo que sugiere una evolución hacia la integración de múltiples disciplinas y enfoques. Los resultados destacan la importancia de seguir investigando este problema global, así como la necesidad de evaluar las intervenciones existentes para reducir su impacto en el desarrollo de los niños y las niñas.


Introduction: Child abuse is a global problem that affects children's development and can have consequences throughout their lives. Despite the need to research to eradicate this phenomenon, there has not been a bibliometric approach to its recent advances. Method: This study examined 16,708 articles on child abuse indexed in the Web of Science between 1991 and 2020 to establish research trends. Results: Child maltreatment is an active field, mainly influenced by the USA, Canada and the UK, and journals in the family studies category, especially Child Abuse & Neglect. The most relevant articles address the topic as part of Adverse Childhood Experiences or focus on its assessment. Considering the most relevant articles, the most studied topics (subjects, research, maltreatment and types of maltreatment, family and parenting, and disorders) and the main foci (maltreatment, research, sex, reporting, and sexual abuse), it is possible that the area is being restructured under the ecobiodevelopmental perspective, with emphasis on treatment and prevention. Its theoretical and practical implications are discussed. Conclusions: This study updates research trends in the field of child maltreatment, providing a comprehensive overview that suggests an evolution toward the integration of multiple disciplines and approaches. The results highlight the importance of further research on this global problem, as well as the need to evaluate existing interventions to reduce its impact on children's development.

6.
Pharmaceutics ; 14(11)2022 Oct 24.
Artículo en Inglés | MEDLINE | ID: mdl-36365097

RESUMEN

A series of resveratrol/hydrazone hybrids were obtained and elucidated by spectroscopic analysis. All compounds were evaluated against colorectal cancer cells (SW480 and Sw620) and nonmalignant cell lines (HaCaT and CHO-K1) to establish the selectivity index. Among the hybrids evaluated, compounds 6e and 7 displayed the highest cytotoxic activity with IC50 values of = 6.5 ± 1.9 µM and 19.0 ± 1.4 µM, respectively, on SW480 cells. In addition, hybrid 7 also exhibited activity on SW620 cells with an IC50 value of 38.41 ± 3.3 µM. Both compounds were even more toxic against these malignant cells in comparison to the nonmalignant ones, as evidenced by higher selectivity indices 48 h after treatment. These compounds displayed better activity and selectivity than parental compounds (PIH and Resveratrol) and the reference drug (5-FU). In addition, it was observed that both compounds caused antiproliferative activity probably exerted by cell cycle arrest at the G2/M or G0/G1 phases, with the formation of cells in the subG0/G1 phase. Furthermore, it was noticed that compound 7 induced mitochondrial depolarization in SW480 cells and positive staining for propidium iodide in both cancer cell lines, suggesting cell membrane damage involving either apoptosis or other processes of death.

7.
Pharmaceuticals (Basel) ; 15(10)2022 Oct 21.
Artículo en Inglés | MEDLINE | ID: mdl-36297411

RESUMEN

A series of 5-FU-Genistein hybrids were synthesized and their structures were elucidated by spectroscopic analysis. The chemopreventive potential of these compounds was evaluated in human colon adenocarcinoma cells (SW480 and SW620) and non-malignant cell lines (HaCaT and CHO-K1). Hybrid 4a displayed cytotoxicity against SW480 and SW620 cells with IC50 values of 62.73 ± 7.26 µM and 50.58 ± 1.33 µM, respectively; compound 4g induced cytotoxicity in SW620 cells with an IC50 value of 36.84 ± 0.71 µM. These compounds were even more selective than genistein alone, the reference drug (5-FU) and the equimolar mixture of genistein plus 5-FU. In addition, hybrids 4a and 4g induced time- and concentration-dependent antiproliferative activity and cell cycle arrest at the S-phase and G2/M. It was also observed that hybrid 4a induced apoptosis in SW620 cells probably triggered by the extrinsic pathway in response to the activation of p53, as evidenced by the increase in the levels of caspases 3/8 and the tumor suppressor protein (Tp53). Molecular docking studies suggest that the most active compound 4a would bind efficiently to proapoptotic human caspases 3/8 and human Tp53, which in turn could provide valuable information on the biochemical mechanism for the in vitro cytotoxic response of this compound in SW620 colon carcinoma cell lines. On the other hand, molecular dynamics (MD) studies provided strong evidence of the conformational stability of the complex between caspase-3 and hybrid 4a obtained throughout 100 ns all-atom MD simulation. Molecular mechanics Poisson-Boltzmann surface area (MM-PBSA) analyses of the complex with caspase-3 showed that the interaction between the ligand and the target protein is stable. Altogether, the results suggest that the active hybrids, mainly compound 4a, might act by modulating caspase-3 activity in a colorectal cancer model, making it a privileged scaffold that could be used in future investigations.

8.
J Int Migr Integr ; : 1-23, 2022 Oct 18.
Artículo en Inglés | MEDLINE | ID: mdl-36277258

RESUMEN

The present study provides evidence of how perceived social support is a mechanism by which identity fusion with the country of origin is associated with psychological well-being in a migrant population. The study design was cross-sectional. We use intentional sampling based on the accessibility of the participants and using the snowball strategy through an online survey. This study included 323 Venezuelan migrants, of whom 176 (54.5%) were women, all residents of the city of Santiago, Chile. The variables assessed were perceived social support, identity fusion, and psychological well-being. Structural equation modeling was used to estimate the proposed mediation model. The estimation method used was robust weighted least squares estimation. The estimated models indicated that perceived social support has a mediating effect on the positive relationship between identity fusion and psychological well-being of Venezuelan migrants residing in Chile. According to these results, feeling a sense of fusion with the country of origin and the perception of having sources of care and protection are factors that may help to improve the psychological well-being of Venezuelan migrants living in Chile. Implications and limitations of these results are discussed.

9.
Rev. CES psicol ; 15(2): 1-22, mayo-ago. 2022. tab, graf
Artículo en Español | LILACS-Express | LILACS | ID: biblio-1387203

RESUMEN

Resumen Los pacientes diagnosticados con Enfermedad de Parkinson (EP) presentan alteraciones motoras concomitantes a otras alteraciones de tipo cognitivo, conductual o emocional. Una de las alternativas al tratamiento farmacológico es la estimulación cerebral profunda (ECP). Existen reportes de alteraciones en el rendimiento de tareas cognitivas tras procedimiento de ECP, lo que podría sugerir que el procedimiento es responsable de estos cambios cognitivos. El objetivo del estudio fue comparar los resultados del rendimiento en pruebas cognitivas de pacientes con EP de dos grupos (con ECP y sin ECP). Se recolectaron los resultados de 47 pacientes (n = 16 ECP; n = 31 sin ECP) durante los años de 2011 hasta 2015. Dentro de las funciones y variables evaluadas se encuentran: categorización visual, flexibilidad cognitiva, solución de problemas, atención selectiva, velocidad de procesamiento, inhibición conductual y calidad de vida. En general, no se encontraron diferencias significativas entre los grupos en las funciones evaluadas. En el grupo de participantes con ECP, se encontró mayor cantidad de correlaciones entre las pruebas de semejanzas y las de dígitos inversos, listas de palabras, búsqueda de símbolos y las subpruebas del Wisconsin Card Sorting Test. Así mismo, en los pacientes con ECP se presentó una percepción menor de calidad de vida asociada al tiempo de la enfermedad en comparación con el grupo sin ECP. En conclusión, estos resultados son congruentes con estudios similares de evaluación neuropsicológica y se discute el papel del tratamiento de estimulación en los pacientes, los cuales no siempre tienen un impacto positivo sobre la calidad de vida percibida.


Abstract Patients diagnosed with Parkinson's disease show motor alterations together to cognitive, behavioral, and emotional disturbances. An alternative treatment to the exclusive pharmacological medication is the Deep Brain Stimulation procedure (DBS). Some studies have shown altered behavioral patterns after DBS device implantation, suggesting a relationship between a particular performance in cognitive tests derived from the DBS procedure. Our study aimed to compare the performance of cognitive tests in Parkinson's disease patients with and without DBS. Results were analyzed from 47 patients (n = 16 DBS; n = 31 without DBS) in a range since 2011 to 2015. Functions tested were visual categorization, cognitive flexibility, problem solutions, selective attention, cognitive processing speed, behavioral inhibition, and quality of life. In general, there are non-significative differences between groups in functions tested. However, correlations were found depending on the group (DBS or without DBS patients), with more positive correlations inside the DBS group between the similarity test and inversed digits, list of words, symbol search and the sub-test of the Wisconsin Card Sorting Test. In addition, the DBS group showed a low perception of the quality of life associated with the disorder´s time compared to the without DBS group. In conclusion, these results are congruent with similar studies of neuropsychological evaluation, and the role of treatment is discussed below the perception of the quality of life.

10.
Foods ; 11(13)2022 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-35804772

RESUMEN

Bioactive compounds, such as phenolic compounds, are phytochemicals found in significant amounts in cereals and pseudocereals and are usually evaluated by spectrophotometric (UV-VIS), HPLC, and LC-MS techniques. However, their bioavailability in grains is quite limited. This restriction on bioavailability and bioaccessibility occurs because they are in conjugated polymeric forms. Additionally, they can be linked through chemical esterification and etherification to macro components. Techniques such as thermoplastic extrusion, germination, fermentation, and hydrolysis have been widely studied to release phenolic compounds in favor of their bioavailability and bioaccessibility, minimizing the loss of these thermosensitive components during processing. The increased availability of phenolic compounds increases the antioxidant capacity and favor their documented health promoting.

11.
Foods ; 11(11)2022 May 24.
Artículo en Inglés | MEDLINE | ID: mdl-35681283

RESUMEN

A mixture design (MD) was used to evaluate the effect of replacing wheat flour (WF) with sprouted cañihua (Chenopodium pallidicaule Aellen), kiwicha (Amarathus caudatus L.), and quinoa (Chenopodium quinoa Willd.) flours (SCF, SKF, and SQF, respectively) on the content of phytic acid (PA), γ-aminobutyric acid (GABA), total soluble phenolic compounds (TSPC), and antioxidant activity (AA) in biscuits. Generally, sprouted pseudocereal flours contained lower amounts of starch and protein, comparable fat, ash, PA content, and increased levels of bioactive compounds (GABA and TSPC) and AA compared with wholegrain flours. Moreover, it was confirmed that sprouted pseudocereal flours were nutritionally superior to refined WF. MD allowed the modeling of target parameters showing that PA, GABA, TSPC, and AA were positively influenced by the proportion of flours in the biscuit. The models that better described the variation in nutritional parameters as a function of the formulation displayed typically linear and binary interactions terms. SKF exerted the highest influence on the increased content of PA. Therefore, to increase mineral bioavailability, the use of SCF and SQF in the formulation of biscuits was suggested. SCF and SQF positively influenced in GABA, TSPC, and AA in biscuits. The optimal ternary blends of flours that maximize the content of bioactive compounds and AA of biscuits and simultaneously minimize PA content were identified. To study the fate of biscuits in digestion, the optimal formulation for biscuits containing SQF/SCF was selected. For this type of baked product, reduced starch digestibility and glycemic index was observed compared with the control (100% WF). Moreover, the amounts of bioaccessible GABA, TSPC, and AA were higher in gastric and intestinal digests compared with control biscuit. Overall, these results highlighted the nutritional and health benefits of incorporation of flours from sprouted Andean grains in the production of biscuits.

12.
Foods ; 11(11)2022 May 24.
Artículo en Inglés | MEDLINE | ID: mdl-35681290

RESUMEN

Sprouting is an effective treatment for improving nutritional and bioactive properties as well as lowering the anti-nutritional compounds in pseudo-cereals. Enhancing nutritional properties when using sprouted pseudo-cereals flours as a baking ingredient requires tailored formulation. Simplex centroid designs and response surface methodology has been applied in the present study to define the ideal proportions of ternary blends of sprouted kiwicha (SKF), cañihua (SCF) and wheat flours (WF) to simultaneously enhance the content in bioactive compounds (γ-aminobutyric acid, GABA, total soluble phenolic compounds and TSPC), as well as sensory (odor, color, taste and texture) and functional attributes (antioxidant activity, AA) while reducing phytic acid (PA) content of bread. The effect of gastric and intestinal digestion on bioactive compounds, AA, PA and starch hydrolysis was also evaluated. Mixture design allowed for the identification of optimal formulation (5% SKF, 23.1% SCF, 71.9% WF) that can be used to obtain breads with higher content of GABA, TSPC, AA, overall sensorial acceptability (scores > 7) and reduced PA content and glycemic index. Moreover, this study demonstrated that these nutritional and health benefits provided by the replacement of WF by sprouted pseudo-cereal flours remained upon digestion. The results of this study indicated that WF replacement with SKF and SCF is sensory acceptable and improved the nutritional quality of bread.

13.
Acta colomb. psicol ; 25(1): 151-182, ene.-jun. 2022. tab, graf
Artículo en Español | LILACS-Express | LILACS | ID: biblio-1364263

RESUMEN

Resumen El objetivo de la formación doctoral es la generación y difusión de nuevo conocimiento, sin embargo, no es claro cómo los programas de doctorado en Colombia se relacionan con este tipo de producción académica. A partir de ello, en el presente estudio se presenta el panorama general de la producción académica a través de las instituciones de educación superior colombianas que ofertan programas de formación doctoral en psicología. La producción académica se obtuvo de la base de datos Scopus en una muestra de 13 universidades. Tras una búsqueda inicial, se encontraron 1345 documentos, con los cuales se realizó un análisis de los indicadores de productividad y de las redes de colaboración al interior de la disciplina en el país. Posteriormente, esta información se contrastó con la información nacional registrada en el sistema de Curriculum Vitae Latinoamericano y del Caribe (CvLAC) de 193 profesores asociados a las universidades que ofertan los programas de doctorado. Al comparar la producción académica nacional e internacional, se encontró una mayor correlación entre la dirección de tesis de posgrado y la publicación en revistas nacionales. Por lo tanto, se puede afirmar que el impacto de la formación doctoral en la generación de nuevo conocimiento es relativo y tiene un alcance limitado, siendo principalmente las revistas nacionales el medio de difusión de este conocimiento. Se recomienda evaluar el impacto de los productos asociados a la formación posgradual y la visibilidad internacional, con énfasis en las revistas indexadas en bases de datos internacionales.


Abstract The objective of doctoral training is the generation and dissemination of new knowledge; however, it is not clear how doctoral programs in Colombia relate to this type of production. Based on this, this study presents the general panorama of academic production across Colombian higher education institutions that offer doctoral training programs in psychology. The academic production was obtained from the Scopus database in a sample of 13 universities. After this search, 1345 documents were found with which an analysis was made regarding productivity indicators and the collaboration networks within the discipline in the country were identified. Subsequently, this information was contrasted with the national information registered in the Latin American and Caribbean Curriculum Vitae system (CvLAC) of 193 professors associated with the universities offering doctoral programs. As a result, when comparing national and international academic production, a greater correlation is found between the supervision of graduate theses and publication in national journals. In this sense, it is found that the impact of doctoral training on the generation of new knowledge is relative and has a limited scope, being mainly national journals the means of dissemination of this knowledge. It is recommended to evaluate the impact of products associated with postgraduate training and international visibility, with emphasis on indexed journals in international databases.

14.
J. health med. sci. (Print) ; 8(1): 45-50, ene.-mar. 2022. ilus, graf, tab
Artículo en Inglés | LILACS | ID: biblio-1395758

RESUMEN

Radiation absorbed doses to organs outside the radiation therapy treatment beam can be significant and therefore of clinical interest. Two sets of out-of-beam measurements were performed measuring the leak dose and the scattered dose, at 5 points within the accelerator components (accelerator tube and collimator) and at 21 points on the equipment and surroundings based on a positioning scheme. For this purpose, 52 Optically Stimulated Luminescence (OSL) dosimeters were used in a latest generation helical linear accelerator. Of the 200 cGy fired at a cheese-like phantom, 0.332% of the out-of-beam dose contribution was found to come from the leak and 0.784% was transformed into scattering. For these dose values, estimates of the risk of second tumors in long-term survivors indicate a reduced probability of acquiring a second secondary radiation malignancy, based on information from the 1990 BEIR Committee report.


La dosis absorbida de radiación a órganos fuera del haz de tratamiento de radioterapia puede ser significativa y, por lo tanto, de interés clínico. Se realizaron dos sets de mediciones fuera del haz para determinar la dosis de fuga y la dosis dispersa, en 5 puntos dentro de los componentes del acelerador (tubo de aceleración y colimador) y 21 puntos en el equipo y alrededores basado en un esquema de posicionamiento. Para este fin se utilizaron 52 dosímetros de luminiscencia estimulada ópticamente (OSL, Optically Stimulated Luminescence), en un acelerador lineal helicoidal de última generación. De los 200 cGy disparados a un maniquí tipo queso, se encontró que el 0.332% de la contribución de dosis fuera del haz provenía de la fuga y 0.784% se transforma en dispersión. Para estos valores de dosis, las estimaciones del riesgo de segundos tumores en los supervivientes a largo plazo indican una reducida probabilidad de contraer una segunda malignidad por radiación secundaria, según la información del informe del Comité BEIR de 1990.


Asunto(s)
Humanos , Planificación de la Radioterapia Asistida por Computador/métodos , Radioterapia de Intensidad Modulada/métodos , Dosimetría con Luminiscencia Ópticamente Estimulada , Radiometría/instrumentación , Dosimetría Termoluminiscente , Calibración , Luminiscencia , Mediciones Luminiscentes
15.
Artículo en Inglés | LILACS, Index Psicología - Revistas | ID: biblio-1375421

RESUMEN

In this paper, we offer an in-depth analysis of relevant scientific literature and a series of critical reflections based on a narrative review of the impact that the early stages of the Covid-19 pandemic had on Latin American psychology. We performed a non-exhaustive search, selection, and analysis of different documentary sources in scientific databases, institutional repositories, and websites of national and regional psychology organizations between May 25 and 31, 2020. In particular, we consulted SciELO, Redalyc, Dialnet, and Google Scholar using the following individual key words associated to psychology: "Coronavirus", "Covid-19" and "Pandemic". Various types of documents were retrieved for a subsequent in-depth analysis (e.g., articles, institutional documents, notes, bulletins, recommendation guides, etc.). Our review allowed us to identify three challenges for psychology in the region: (1) insertion of psychology in public policies; (2) construction of an own agenda of psychological research; (3) evaluation of practices and reorientation of professional training processes.


Neste artigo, é oferecida uma análise aprofundada da literatura científica relevante e uma série de reflexões críticas baseadas em uma revisão narrativa do impacto que os estágios iniciais da pandemia de Covid-19 tiveram na psicologia latino-americana. Foi realizada uma busca não exaustiva, seleção e análise de diferentes fontes documentais em bancos de dados científicos, repositórios institucionais e websites de organizações nacionais e regionais de psicologia entre 25 e 31 de maio de 2020. Em particular, foram consultadas as bases SciELO, Redalyc, Dialnet e Google Scholar usando as seguintes palavras-chave individuais associadas à psicologia: "coronavírus", "Covid-19" e "pandemia". Vários tipos de documentos foram recuperados para uma análise posterior em profundidade (por exemplo: artigos, documentos institucionais, notas, boletins, guias de recomendação, etc.). A revisão feita pelos autores permitiu identificar três desafios para a psicologia na região: (1) inserção da psicologia nas políticas públicas; (2) construção de uma agenda própria de pesquisa psicológica e (3) avaliação das práticas e reorientação dos processos de formação profissional.


Asunto(s)
Psicología , Salud Mental , Intervención Psicosocial , COVID-19 , América Latina
16.
Arch Prev Riesgos Labor ; 24(3): 240-251, 2021 07 15.
Artículo en Español | MEDLINE | ID: mdl-34965330

RESUMEN

OBJECTIVE: To evaluate the occupational safety and health management of COVID-19 at a company in the Peruvian fishing sector Methods: The independent variable was occupational safety and health management, defined as the implementation of preventive and control measures in response to COVID-19. The dependent variable was defined as the number of detected COVID-19 cases and test positivity rate. We used a pre- (implementation phase) and post-test (following the implementation phase) study design. We performed a non-parametric inferential analysis to identify any significant pre- and post-test differences and any associations between the variables. RESULTS: The company initiated a strategy to detect positive cases through the use of serological tests. During the first stage, 2329 tests were conducted, yielding a positivity rate of 71%. Once prevention and control actions were implemented, the positivity rate in August 2020 had decreased to 15.65%,, a statistically significant decrease (p<0.05), as well as its relationship to the measures implemented. CONCLUSIONS: This occupational safety and health intervention significantly reduced the number of COVID-19 cases and positivity rate in this group of workers in the Peruvian fishing sector.


Objetivo: Evaluar la gestión de seguridad y salud en el trabajo de una empresa del sector pesquero peruano frente al Covid-19 Métodos: La variable independiente fue la gestión de seguridad y salud en el trabajo respecto a la implementación de acciones preventivas y de control frente al Covid-19. La variable dependiente se midió a través del número de casos detectados y la tasa de positividad de Covid-19. Se utilizó un diseño preexperimental con una preprueba, durante la implementación en proceso y una post prueba, con información recopilada al finalizar las acciones preventivas y de control. Se realizó un análisis inferencial no paramétrico para establecer diferencias significativas entre la preprueba y la post prueba y el grado de asociación entre las variables. Resultados: La empresa inició una estrategia de detección de casos positivos a través del uso de pruebas serológicas. Durante la primera etapa, se realizaron 2329 pruebas que arrojaron un 71% de positividad. Una vez que se implementaron las acciones de prevención y control la tasa de positividad se redujo a un 15.65% durante agosto del 2020. Las pruebas inferenciales mostraron un nivel de significación (p<0.05) en la reducción obtenida, así como en la relación de esta con las medidas adoptadas. Conclusiones: Una adecuada gestión de seguridad y salud en el trabajo frente al Covid-19 redujo de manera significativa el número de casos detectados y la tasa de positividad del Covid-19 en trabajadores del sector pesquero peruano.


Asunto(s)
COVID-19 , Salud Laboral , Humanos , Caza , Perú , SARS-CoV-2
17.
Front Psychol ; 12: 707101, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34744867

RESUMEN

Multiple research has indicated that group identity processes are critical to understanding the dynamics of psychological well-being linked to migration. However, few studies have analyzed the relationship between identity from different theoretical perspectives, and the mental health of migrants in the Latin-American context. Therefore, the purpose of this study was to analyze the relationship between several identity indicators such as ethnic identity, collective self-esteem, identity fusion (with the country of origin and the host country) simultaneously, and different dimensions of psychological well-being of Colombian migrants living in Chile. The sample consisted of 887 Colombian migrants, of whom 435 (49%) were men and 452 (51%) were women. Participants were residents of the cities of Arica (n=204; 23%), Antofagasta (n=469; 52.9%), and Santiago (n=214; 24.1%) in Chile. The results revealed by structural equation modeling indicate that collective self-esteem and ethnic identity show positive relationships with almost all dimensions of psychological well-being, while identity fusion with Colombia only showed a positive relationship with the dimension positive relationships and identity fusion with Chile only showed a positive relationship with the dimension autonomy. Implications and limitations of these results are discussed at the end.

18.
Arch Public Health ; 79(1): 31, 2021 Mar 10.
Artículo en Inglés | MEDLINE | ID: mdl-33691768

RESUMEN

BACKGROUND: After 9 years of the ground-breaking social policy Law 1448 of 2011 -Victims Law- and its extension until 2030, the Colombian State and other stakeholders have made several efforts towards granting the right of integral reparation for more than 9 million victims that are recognized in the Colombian transitional context. Psychosocial rehabilitation is a Victims Law's reparation measure whose objective is to re-establish the psychosocial, physical and mental health welfare in the individual, familiar and community levels. This study aims to understand the experiences of psychosocial rehabilitation of women victims of armed conflict in Montes de Maria and the underlying social intervention paradigms that guide the Law's implementation. METHODS: Based on a qualitative design with a phenomenological approach, narrative tools and thematic network analysis permitted to give voice to the women participants. Individual narrative interviews were conducted with 12 women victims and a focus group with eight of them was used as a triangulation strategy. RESULTS: Although the Victims Law is oriented by a sociopolitical intervention paradigm, the stories of the women's victims of Montes de María mainly evidenced non-sociopolitical interventions with humanitarian assistance towards revictimization and State abandonment. As a coping mechanism towards the State negligence encountered, women strive to overcome psychosocial trauma by developing agency and community resources for the resignification of the traumatic experiences and peacebuilding. CONCLUSIONS: For the Victims Law to achieve its integrality aim, the psychosocial approach should be implemented through all its measures but remains absent in Montes de Maria. The diversity of victim's individual and collective initiatives that were found, can contribute towards transformative and participatory psychosocial intervention with community's resources. Women victims can perform as advisors and collaborators in the implementation of individual and collective reparation, which remains as an opportunity for psychosocial rehabilitation and peacebuilding. Further monitoring and evaluation of the law with a territorial and differential perspective is required to respond to the victim's needs.

19.
Diversitas perspectiv. psicol ; 16(2): 365-386, jul.-dic. 2020. tab, graf
Artículo en Español | LILACS-Express | LILACS | ID: biblio-1375298

RESUMEN

Resumen Los campos de la aplicación de pruebas psicológicas y neuropsicológicas se han visto impactos por la tecnología específicamente con las pruebas informatizados. Una de las preguntas frecuentes en versiones papel y lápiz comparadas con una versión informatizada de la misma prueba, es si éstas son equivalentes. El objetivo de este estudio fue comparar el desempeño de pruebas neuropsicológicas en formato lápiz y papel y formato computarizado. Participaron 41 estudiantes en dos aplicaciones de las mismas pruebas en las dos versiones. Se encontró que los desempeños fueron equivalentes en la mayoría de las pruebas. Sin embargo, existen variaciones en las modalidades dependiendo de la ejecución de la prueba y con alta variabilidad entre sujetos. Esto sugiere que la diferencia en las puntuaciones podría deberse a la diferencia en los procesos cognitivos subyacentes a la ejecución de las dos modalidades.


Abstract The application of psychological and neuropsychological tests has been impacted by technology, specifically by computerized testing. One of the frequently asked questions is whether the version in pencil and paper and the computerized one can be considered equivalent tests. This study aimed to compare the performance on neuropsychological tests in pencil-and-paper and in computerized format. Forty-one students participated in two applications of the same tests in the two versions. It was found that the performances were equivalent in most of the tests. However, there are variations in the modalities depending on the execution of the test, and high intersubject variability. Results suggest that the difference in scores may be due to the difference in the underlying cognitive processes during the performance of the two modalities.

20.
Acta colomb. psicol ; 23(2): 410-437, jul.-dic. 2020. tab, graf
Artículo en Inglés | LILACS-Express | LILACS | ID: biblio-1124051

RESUMEN

Abstract The objective of the present investigation was to conduct a systematic review of empirical studies that have reported the use of identity fusion theory. The review followed guidelines and recommendations of the PRISMA statement. The following databases were used Web of Science, Scopus, ProQuest, ScienceDirect, Willey Online Library, EBSCO and JSTORE databases. Empirical studies were selected, in Spanish and English that were published between 2009 and 2018. 52 articles were found that met the selection criteria. Most studies give evidence that identity fusion is a strong predictor of extreme sacrifice behaviors by the group. Likewise, identity fusion has generally been associated with variables such as: identification with the group, group commitment, perceived social support, loyalty even in ostracized conditions, feelings, affects and emotions towards the group, perception of kinship, among other. Its implications and limitations are discussed.


Resumen El objetivo de la presente investigación fue realizar una revisión sistemática de los estudios empíricos que han reportado el uso de la teoría de fusión de identidad. Para esto, la revisión siguió los lineamientos y recomendaciones de la declaración PRISMA. Las bases de datos consultadas fueron Web of Science, Scopus, ProQuest, ScienceDirect, Willey Online Library, EBSCO y JSTORE. En total, se revisaron 52 estudios empíricos, en español y en inglés, publicados entre los años 2009 y 2018, que cumplían con los criterios de selección. La mayoría de los estudios dan evidencia de que la fusión de identidad es un fuerte predictor de conductas extremas de sacrificio por el grupo, y también, se ha asociado generalmente a variables como la identificación con el grupo, el compromiso grupal, el apoyo social percibido, la lealtad incluso en condiciones de ostracismo, los sentimientos, afectos y emociones hacia el grupo, y la percepción de parentesco, entre otras. Al final se discuten sus implicaciones y limitaciones.

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