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Expression de l’Interleukine-33 Plasmatique : Profil des Patients Atteints de Goutte – Une Étude Transversale Analytique
Full text linkIntroduction : La goutte est une arthropathie microcristalline caractérisée par une inflammation aiguë médiée par un large éventail de cytokines pro-inflammatoires, dont l'IL-1β. L'interleukine 33 (IL-33), une alarmine et membre de la superfamille de l'IL-1, est également impliquée dans les processus inflammatoires. Le rôle précis de l'IL-33 dans la physiopathologie de la crise de goutte reste à élucider. Notre étude avait pour objectif d'évaluer l'expression plasmatique de l'IL-33 chez des patients goutteux et de déterminer si cette cytokine pourrait constituer une cible thérapeutique pertinente. Méthodologie : Nous avons mené une étude transversale descriptive et analytique avec une groupe témoin d'octobre 2022 à février 2023 à l'Hôpital de District de la Cité-Verte au Cameroun. Résultats : L'échantillon était composé de 64 participants, dont 43 patients atteints de goutte (cas) et 21 sujets sains (témoins). Le diagnostic de goutte a été établi sur la base des critères cliniques et biologiques. Des échantillons de sang ont été prélevés sur tubes EDTA. Les concentrations plasmatiques d'IL-33 ont été mesurées par la technique ELISA sandwich. Les données cliniques et démographiques ont été recueillies, puis enregistrées sur Microsoft Excel 2016. L'analyse statistique a été effectuée à l'aide des logiciels Epi Info 7.0 et Graph Pad Prism 7.0. La significativité statistique a été définie par une valeur de p < 0,05.RésultatsL'âge moyen de la cohorte était de 57,35 ± 12,47 ans. La population des patients goutteux était majoritairement de sexe masculin et se situait dans la tranche d'âge des 55 à 65 ans. Les concentrations plasmatiques d'IL-33 étaient significativement plus basses chez les patients goutteux (extrêmes : 9 à 93 pg/mL) par rapport au groupe témoin (extrêmes : 11,5 à 140,5 pg/mL) (p < 0,05). Une corrélation positive statistiquement significative a été observée entre l'âge et la concentration d'IL-33 (r > 0). Parmi les paramètres cliniques et biologiques étudiés, seul le diabète était statistiquement associé à la variation des taux sériques d'IL-33 (p < 0,05). Conclusion : Nos résultats suggèrent que l'interleukine 33 ne semble pas être une cible thérapeutique pertinente dans la gestion de la crise de goutte, compte tenu de ses faibles concentrations observées. La taille limitée de notre échantillon nécessite une confirmation de ces résultats par des études futures menées sur une plus grande cohorte.
Introduction: Interleukin-33 (IL-33), a member of the IL-1 family, is a cytokine involved in immune responses. This study aimed to determine the profile of IL-33 in patients with gouty arthritis to investigate its potential as a therapeutic target. Methodology: A Descriptive and analytical study with a control group was conducted with a cross-sectional data collection approach from October 2022 to February 2023, including 64 participants. The study group consisted of 43 gout patients selected from their medical records, and the control group had 21 subjects. Plasma IL-33 concentrations were measured using the sandwich ELISA technique on blood samples collected in EDTA tubes. Data were analyzed using Microsoft Excel 2016, Epi Info 7.0, and GraphPad Prism 7.0 software. Results: The mean age of the participants was 57.35±12.47 years. The majority of gout patients were male, aged between 55 and 65 years. Plasma IL-33 levels were significantly lower in gout patients (ranging from 9 to 93 pg/mL) compared to controls (ranging from 11.5 to 140.5 pg/mL), with a p-value less than 0.05. A positive correlation was observed between age and IL-33 concentration (r>0). Diabetes was the only parameter statistically associated with a variation in serum IL-33 levels (p < 0.05). Conclusion: Based on our findings, interleukin-33 cannot be considered a therapeutic target in patients with gout. A study with a larger sample size is needed to corroborate these results and further explore the role of IL-33 in the pathogenesis of gout
Evaluation des Effets d’une Consommation Prolongée du Bouillon Culinaire Commercial “ Cube Maggi ” sur les Paramètres Anthropométriques et Zootechniques chez le Rat Wistar
Full text linkLes bouillons culinaires sont consommés depuis de nombreuses années par les populations. Cependant, face au manque de transparence quant à leur composition, de nombreux consommateurs ignorent les risques potentiels liés à une consommation excessive. Parmi ces bouillons culinaires figure la marque « Maggi », qui suscite de nombreuses controverses. Cette étude vise à évaluer les effets d’une consommation prolongée du bouillon culinaire « Cube Maggi », combinée à de l’huile de palme raffinée, sur les paramètres anthropométriques et zootechniques chez le rat Wistar. Quatre-vingt-seize rats albinos Wistar ont été répartis en six groupes (12 rats par lot) recevant différents régimes alimentaires pendant trois mois. Les régimes incluaient des granulés standards, des granulés enrichis en huile de palme, en « Cube Maggi » à diverses concentrations (1,5 %, 3 % ou 6 %) ainsi qu’en poudre de Tridax procumbens (1 % selon le régime). Tridax procumbens, connu traditionnellement pour ses multiples effets bénéfiques sur la santé, a été intégré afin d’évaluer son impact en cas de consommation excessive du bouillon. Les paramètres mesurés comprenaient la masse corporelle, la consommation alimentaire, l’hydratation, la digestibilité et les indices zootechniques. Les masses corporelles des rats mâles Témoins-G et Témoins-H étaient, au début de l’expérience, respectivement de 129,100 ± 9,057 g et 116,3 ± 5,322 g, et ont atteint 163,00 ± 4,17 g (Témoins-G) et 154,00 ± 7,89 g (Témoins-H) à la fin de l’expérience. Quant aux lots expérimentaux mâles (Bouillon-6% et Bouillon-Tridax), les masses initiales étaient respectivement de 141,000 ± 7,706 g et 133,300 ± 6,774 g. Elles ont augmenté pour atteindre 222,0 ± 18,7 g pour le lot Bouillon-6% et 202,0 ± 12,0 g pour le lot Bouillon-Tridax à la fin de l’expérience. Une consommation excessive de « Cube Maggi » (6 %) combinée ou sans Tridax procumbens a entraîné une augmentation significative de la masse corporelle par rapport aux lots témoins, notamment chez les rats mâles. En revanche, les régimes modérés, enrichis en 1,5 % ou 3 % de bouillon cube, n’ont induit ni un déséquilibre nutritionnel ni une variation significative des indices zootechniques par rapport aux témoins. La consommation modérée de « Cube Maggi » et d’huile de palme raffinée ne semble pas altérer les paramètres nutritionnels chez le rat Wistar. Toutefois, une consommation excessive pourrait favoriser une prise de poids significative.
Culinary bouillons have been widely consumed for decades, yet their composition often lacks transparency, leaving many consumers unaware of the potential risks associated with excessive intake. Among these products, the brand “Maggi” has generated considerable controversy. This study aimed to evaluate the effects of prolonged consumption of the culinary bouillon “Maggi Cube,” combined with refined palm oil, on anthropometric and zootechnical parameters in Wistar rats. Ninety-six albino Wistar rats were divided into six groups (12 rats per group) and subjected to different dietary regimens over a three‑month period. The diets included standard pellets, pellets enriched with palm oil, with “Maggi Cube” at varying concentrations (1.5%, 3%, and 6%), and with Tridax procumbens powder (1%). Tridax procumbens, traditionally recognized for its multiple health benefits, was incorporated to assess its potential interaction with excessive bouillon consumption. Parameters measured included body mass, food intake, hydration, digestibility, and zootechnical indices. The body weights of male rats in Control-G and Control-H groups were, at the beginning of the experiment, 129.100 ± 9.057 g and 116.3 ± 5.322 g, respectively, and reached 163.00 ± 4.17 g (Control-G) and 154.00 ± 7.89 g (Control-H) at the end of the experiment. As for the experimental male groups (Broth-6% and Broth-Tridax), the initial weights were 141.000 ± 7.706 g and 133.300 ± 6.774 g, respectively. They increased to 222.0 ± 18.7 g for the Broth-6% group and 202.0 ± 12.0 g for the Broth-Tridax group at the end of the experiment. The body weights of male rats in Control-G and Control-H groups were, at the beginning of the experiment, 129.100 ± 9.057 g and 116.3 ± 5.322 g, respectively, and reached 163.00 ± 4.17 g (Control-G) and 154.00 ± 7.89 g (Control-H) at the end of the experiment. As for the experimental male groups (Broth-6% and Broth-Tridax), the initial weights were 141.000 ± 7.706 g and 133.300 ± 6.774 g, respectively. They increased to 222.0 ± 18.7 g for the Broth-6% group and 202.0 ± 12.0 g for the Broth-Tridax group at the end of the experiment. Excessive consumption of “Maggi Cube” (6%) combined with Tridax procumbens resulted in a significant increase in body mass compared with control groups, particularly in male rats. In contrast, moderate diets enriched with 1.5% or 3% bouillon did not induce nutritional imbalance or significant changes in zootechnical indices relative to controls. Moderate consumption of “Maggi Cube” and refined palm oil therefore appears not to alter nutritional parameters in Wistar rats, whereas excessive intake may promote significant weight gain
Dynamique de consommation des aliments traditionnels à Goma (Nord-Kivu, République Démocratique du Congo)
Full text linkLa région de Goma bénéficie d'une diversité d'aliments traditionnels, mais paradoxalement, y fait face une insécurité alimentaire alarmante, une problématique encore peu documentée. Cette étude vise à identifier les types d'aliments traditionnels vendus et consommés dans la ville de Goma et les facteurs déterminant leur consommation. L'échantillon comprend 13 producteurs, 52 vendeurs et 126 consommateurs, sélectionnés selon des méthodes d'échantillonnage probabiliste et non probabiliste. Les résultats révèlent une grande diversité d'aliments traditionnels, principalement d'origine végétale. Environ 40 % des enquêtés consommaient au moins un aliment traditionnel trois fois par semaine, principalement pour leur valeur alimentaire, puis médicinale. La consommation était significativement associée à la possession de moyens de conservation à domicile (p<0,05) et au statut des personnes interrogées, les producteurs en consommant davantage que les autres catégories (p<0,05). Face à la faible consommation globale de ces aliments à Goma, l'étude recommande des actions de sensibilisation sur leurs valeurs nutritionnelles et leur contribution à l'amélioration de la qualité du régime alimentaire des ménages.
The Goma region benefits from a diversity of traditional foods, yet paradoxically faces alarming food insecurity, an issue that remains poorly documented. This study aims to identify the types of traditional foods sold and consumed in the city of Goma and the factors determining their consumption. The sample included 13 producers, 52 sellers, and 126 consumers, selected using probabilistic and non-probabilistic sampling methods. The results reveal a great diversity of traditional foods, primarily of plant origin. Approximately 40% of respondents consumed at least one traditional food three times per week, mainly for their nutritional value, followed by their medicinal use. Consumption was significantly associated with the availability of home storage methods (p<0.05) and the status of the respondents, with producers consuming more than other categories (p<0.05). Given the overall low consumption of these foods in Goma, the study recommends awareness-raising actions about their nutritional value and their contribution to improving the quality of household diets
Noise-Induced Hearing Loss Among Greek Solid Waste Landfill Workers
Full text linkIntroduction: Hearing loss at work is currently considered the most common cause of permanent hearing loss in adults and one of the most important health problems with economic and psychosocial consequences. The present study has the aim to investigate the prevalence and the determinants of hearing loss among solid waste workers. Material and methods: Eight-three (83) solid waste workers underwent audiometric test in the facilities of the Integrated Solid Waste Management Facility (OEDA) in the area of Αttica, Greece. To assess hearing, an occupational history was first taken, followed by an otoscopy and audiogram. The findings of the audiograms were initially assessed as normal and pathological and then classified using diagnostic criteria (NIOSH, OYDOS). Findings: Statistical analysis has shown that 23% of solid waste workers had sensorineural hearing loss located mainly at 4000 Hz. Multivariate analysis confirmed that the intensity of occupational exposure to noise appears to be the strongest predictor of noise-induced hearing loss (p=0.02326) followed by the years of work (p=0.02728). Particularly, the analysis with the NIOSH criterion (probability of having a positive NIOSH criterion in at least 1 of both ears) increased by 1.33 times/year or 32.84%/year on average. Finally, no univariate statistically significant associations were found with any of the two criteria and smoking, BMI, hypertension or tinnitus Estimating exposure through self-reported data is not sufficient and accurate and in fact workers who are exposed to higher risk measures tend to underestimate the risk. Conclusion: Our findings indicate that solid waste workers are occupationally exposed to high levels of noise, and present high rates of noise-induced hearing loss (NIHL). It is necessary to estimate the noise exposure with appropriate measurements in the work environment (individual sound exposure of employees and environmental measurements in the workplace) and take appropriate measures
Biosynthesis of Silver Nanoparticles using Ajuca ive Leaf Extract and Assessment of their Activity on E. coli and Streptococcus bacteria
Full text linkSilver nanoparticle synthesis from plant extracts has been widely used in medicine, particularly as an antibacterial agent. In the present study, Ajuca ive leaf extract was performed using an aqueous solution tested for its phytochemical components. The results of the phytochemical analysis of Ajuca ive leaf extract had alkaloids, carbohydrates, proteins, flavonoids, phenols, saponins, and coumarins. Synthesis of silver nanoparticles was performed using Ajuca ive leaf extract with a 1 mM solution of silver nitrate. The synthesized silver nanoparticles were characterized with UV-visible spectroscopy, X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), Energy-dispersive X-ray spectroscopy (EDX), and Fourier Transform Infra-Red (FTIR) spectrum. SEM analysis revealed the size of the AgNPs of 36 nm, 55 nm, 70 nm, 100, and 300 nm. The EDX study showed that the optical absorption peak was detected at 3 keV, the characteristic peak for the absorbed metallic silver nanoparticles. FTIR analysis identified the possible functional group involved in reducing silver metal ions into silver nanoparticles. In addition, the antibacterial activity of synthesized silver nanoparticles was also examined and the results showed good antibacterial activities against E. coli and Streptococcus bacteria
Creencias y conductas sanitarias para la prevención del contagio de COVID-19 adoptadas por usuarios de una Unidad Médica Familiar 15 del Instituto Mexicano del Seguro Social
Full text linkA finales de diciembre de 2019, se reportaron varios casos de neumonía atípica de origen desconocido en Wuhan, China. Poco después, se identificó al agente etiológico como un nuevo coronavirus, al cual se le dio el nombre de SARS-CoV-2. Se han desarrollado e implementado varios comportamientos protectores de salud para prevenir y reducir la propagación de la enfermedad, tal como se describe en la Jornada Nacional de Sana Distancia propuesta por la Secretaría de Salud en México. Objetivo: examinar las creencias y conductas protectoras de salud contra el COVID-19 adoptados por los usuarios de la Unidad Médica Familiar 15 del Instituto Mexicano del Seguro Social. Materiales y métodos: este estudio observacional, transversal y descriptivo incluyó a adultos que son usuarios de la Unidad Médica Familiar 15. Los datos se recolectaron utilizando una encuesta administrada a 162 personas con una edad promedio de 41.2 ± 16.9 años; el 41.4% (67) eran hombres, y el 58.6% (97) mujeres. Los resultados indicaron que el 61.7% (100) consideró importante saber cómo prevenir el COVID-19, el 53.7% (87) creyó que las personas vacunadas podrían contraer COVID-19, y el mismo porcentaje consideró que es una enfermedad potencialmente grave. Además, el 29% (47) seguía frecuentemente las medidas preventivas recomendadas por
el gobierno, el 53.7% (87) se lavaba las manos regularmente, el 58% (94) siempre cubría su boca al toser o estornudar, el 37.7% (61) a veces mantenía el distanciamiento social en lugares públicos, y el 26.5% (43) rara vez saludaba con un beso o un apretón de manos. Conclusiones: los usuarios demuestran responsabilidad social y creen que el COVID-19 es una enfermedad potencialmente grave y prevenible. Los comportamientos protectores adoptados están alineados con las medidas para prevenir el contagio.
At the end of December 2019, a number of atypical pneumonia cases of unknown origin were reported in Wuhan, China. Shortly thereafter, the etiological agent was identified as a new coronavirus, which was named SARS-CoV-2. Various protective health behaviors have been developed and implemented to prevent and reduce the spread of the disease, as described in the Jornada Nacional de Sana Distancia proposed by the Secretaría de Salud in Mexico. Objective: to examine the protective health beliefs and behaviors against COVID-19 adopted by users of Unidad Médica Familiar 15 of the Instituto Mexicano del Seguro Social. Materials and methods: this observational, cross-sectional, descriptive study included adults who are users of Unidad Médica Familiar 15. Data was collected using a survey that was administered to 162 individuals with an average age of 41.2 ± 16.9 years; 41.4% (67) were male, and 58.6% (97) were female. The results indicated that 61.7% (100) believed it is important to know how to prevent COVID-19, 53.7% (87) believed that vaccinated individuals could contract COVID-19, and the same percentage regarded it as a potentially serious disease. Furthermore, 29% (47) frequently followed government-recommended preventive measures, 53.7% (87) regularly washed their hands, 58% (94) always covered their mouth when coughing or sneezing, 37.7% (61) sometimes maintained social distancing in public places, and 26.5% (43) rarely greeted with a kiss or handshake. Conclusions: the users demonstrate social responsibility and believe that COVID-19 is a potentially serious and preventable disease. The protective behaviors adopted align with measures to prevent contagion
El impacto de la publicidad de actividades artísticas en una universidad pública del sureste de México
Full text linkLa práctica y el consumo de actividades artísticas traen consigo una serie de beneficios para los estudiantes de educación superior en México y en el mundo, además de abonar de diferentes formas al desarrollo sostenible. El objetivo de esta investigación fue analizar la publicidad de las actividades artísticas y sus problemáticas en una universidad pública del estado de Tabasco, México. Este trabajo consistió en un estudio de caso con la participación de 35 estudiantes en diferentes áreas de la ciencia a través de grupos focales, así como la implementación de la técnica de observación no participante de siete eventos artísticos realizados en la institución. Los resultados principales arrojaron problemáticas en el uso de las redes sociales digitales como medio de publicidad y algunas debilidades de los medios de publicidad física y de boca en boca. Se concluye la necesidad de comprensión de los algoritmos de las redes sociales principalmente de Facebook, así como el aprovechamiento de los vínculos sociales para la publicidad por medio de los sujetos que conforman el entorno del estudiante.
The practice and consumption of artistic activities have benefits for higher education students in Mexico and the world, in addition to contributing to sustainable development in different ways. The objective of this research was to analyze the advertising of artistic activities and their problems in a public university in the state of Tabasco, Mexico. This work consisted of a case study with the participation of 35 students in different areas of science through focus groups, as well as the implementation of the non-participant observation technique of seven artistic events held at the institution. The main results showed problems in the use of digital social networks as a means of advertising and some weaknesses in print and word-of-mouth advertising media. The need to understand the algorithms of social networks, mainly Facebook, is concluded, as well as the use of social links for advertising through the actors in the student's environment
Calidad del Servicio como factor determinante de la satisfacción y lealtad de los consumidores de servicios alimenticios
Full text linkEl objetivo de este estudio es evaluar la calidad del servicio ofrecido por los prestadores de servicios alimenticios de la Unidad Académica Multidisciplinaria Zona Media (UAMZM) de la Universidad Autónoma de San Luis Potosí (UASLP) a los estudiantes y determinar si esta calidad está influenciada por las características sociodemográficas de los consumidores. Se utilizó un enfoque cuantitativo, con un alcance descriptivo y correlacional, y un diseño transversal. La muestra calculada fue de 297 elementos, empleando un muestreo aleatorio estratificado, además que, la técnica por la cual se recolectaron los datos fue la entrevista y el instrumento para evaluar la calidad del servicio fue la escala SERVQUAL que se integra de 22 ítems, obteniendo una confiabilidad de 0.959 para las expectativas y 0.936 para la calidad percibida. En general se encontró una pequeña brecha entre percepción y expectativas manifestándose un área de oportunidad en todas las dimensiones, sin embargo, al analizar por cada dimensión se encontró que existe un porcentaje alto de calidad al sumar la calidad óptima y derroche de calidad. En conclusión, se puede afirmar que existe una relación entre las dimensiones de la calidad del servicio que se brinda con la satisfacción y lealtad de los consumidores, y no hubo evidencia para afirmar que la calidad está determinada por las características sociodemográficas del consumidor.
The aim of this study is to assess the quality of service provided by food service providers at the Unidad Académica Multidisciplinaria Zona Media (UAMZM) of the Universidad Autónoma de San Luis Potosí (UASLP) to students and to determine whether the consumers' sociodemographic characteristics influence this quality. A quantitative approach was used, with a descriptive and correlational scope, and a cross-sectional design. The calculated sample was 297 elements, using stratified random sampling. The technique used for data collection was the interview, and the instrument for evaluating service quality was the SERVQUAL scale, consisting of 22 items, with a reliability of 0.959 for expectations and 0.936 for perceived quality. Overall, a small gap was found between perception and expectations, revealing an area of opportunity in all dimensions. However, when analyzing each dimension, a high percentage of quality was found by adding optimal quality and quality surplus. In conclusion, it can be stated that there is a relationship between service quality dimensions and consumer satisfaction and loyalty, and there was no evidence to suggest that the consumer's sociodemographic characteristics determine quality
Phénotypage d’un Germoplasme de Variétés Locales et Exotiques de Patate Douce [Ipomoea batatas (L.) Lam] sur la Base des Caractères Quantitatifs: Implications pour l’Amélioration Génétique au Togo
Full text linkLa patate douce est une plante à racines tubérisées qui contribue à la sécurité alimentaire au Togo. Cependant, peu de données scientifiques existent sur la variabilité génétique au sein des cultivars du Togo, alors que ces informations sont un prérequis pour une mise en œuvre efficace des stratégies de conservation et de développement de nouvelles variétés. L’objectif de cette étude était d’explorer la diversité phénotypique au sein des cultivars de patate douce du Togo. Le phénotypage a porté sur soixante-cinq (65) variétés du Togo et seize (16) variétés exotiques de l’Unité d’Amélioration Génétique du Burkina Faso. Le dispositif expérimental adopté est un « lattice carré 9 x 9 ». Au total, seize (16) caractères quantitatifs ont été évalués conformément à l’ontologie de la patate douce établie par le Centre International de la Pomme de Terre (CIP). Les statistiques descriptives, l’Analyse de Variance (ANOVA) et l’Analyse en Composantes Principales (ACP) ont mis en évidence une forte variabilité au sein du germoplasme pour les caractères tels que le rendement en racines tubéreuses, leur teneur en matière sèche, la biomasse aérienne, la longueur de la tige, la longueur des entre-nœuds et le diamètre des tiges. La classification ascendante hiérarchique (CAH) réalisée sur la base de la distance euclidienne avec comme critère d’agrégation la méthode de Ward a révélé quatre (4) groupes hétérotiques. Les groupes I et II sont composés de variétés à faibles rendements en racines tubéreuses (12,95 et 15,87 t.ha-1) et à teneur élevée en matière sèche (29,68 et 26,86 %). Les groupes III et IV sont constitués de variétés à hauts rendements en biomasse (37,74 et 50,75 t.ha-1), en racines tubéreuses (16,06 et 20,18 t.ha-1) et à teneur modérée (entre 15% et 25%) en matière sèche (24,62 et 23,84 %). La forte variabilité phénotypique observée dans cette banque de gène constitue une base pour les programmes de conservation et d’amélioration génétique de la patate douce au Togo.
Sweet potato is a root crop that contributes to food security in Togo. However, little scientific data exists on the genetic variability of varieties grown in Togo, although this information is a prerequisite for the effective implementation of germplasm conservation strategies and the development of new varieties. The objective of this study was to explore the phenotypic diversity within Togo’s sweet potato varieties. The plant material is composed of sixty-five (65) varieties from Togo and sixteen (16) exotic varieties introduced from Burkina Faso Breeding Unit. The experiment was laid out using a lattice square design. In total, sixteen (16) quantitative traits were evaluated in accordance with the sweet potato ontology as described by Centre Internationale de la Pomme de Terre (CIP). Descriptive statistics, Analysis of Variance (ANOVA), and Principal Components Analysis (PCA) revealed high variability among varieties for traits such as root yield, dry matter content, aboveground biomass, stem length, internode length, and stem diameter. Cluster analysis performed on the basis of the Euclidean distance using the Ward method as aggregation criterion revealed four phenotypic clusters. Clusters I and II are composed of varieties with low root yield (12.95 and 15.87 t.ha-1) and high dry matter content (29.68 and 26.86%). Clusters III and IV are made up of varieties exhibiting high aboveground biomass (37.74 and 50.75 t.ha-1), high fresh root yield (16.06 and 20.18 t.ha-1), and moderate (comprised between 15% and 25%) dry matter content (24.62 and 23.84%). The variability observed in this gene bank constitutes a basis for conservation and genetic improvement programs of sweet potatoes in Togo
Emergencia en la cocina: capacidades dinámicas desplegadas en los restaurantes en época de crisis
Full text linkLa permanencia de las organizaciones, entre ellas las empresas, requiere del mantenimiento y formación de un conjunto de capacidades que conjuguen la eficiencia y la innovación. Lo anterior se acentúa cuando en el entorno se presentan acontecimientos que cambian de modo radical las condiciones en las que se desempeñan las organizaciones. Este es el caso de las crisis económicas, por desastre y de otra índole, a las que se enfrentan las organizaciones, en particular, y la sociedad en general. Al respecto, el artículo tiene la finalidad de identificar las estrategias instrumentadas por los restaurantes en diferentes contextos de crisis, así como el tipo de capacidades involucradas, tomando como base la distinción entre capacidades dinámicas y capacidades ordinarias. Para ello, se recurre a la revisión de literatura como propuesta metodológica y se selecciona una muestra de 271 artículos y actas/ponencias en congresos. Se observa que la teoría de capacidades dinámicas es pertinente para el estudio del desenvolvimiento de la industria restaurantera en diferentes episodios de crisis. Asimismo, que las capacidades dinámicas involucradas han transitado de aquellas orientadas al desempeño del negocio, como el mantenimiento de los ingresos, hacia otras en que las prácticas de responsabilidad social o de sustentabilidad tienen una mayor presencia.
The permanence of organizations, including companies, requires the maintenance and development of a set of capabilities that combine efficiency and innovation. This is accentuated when events occur in the environment that radically change the conditions in which organizations operate. This is the case of economic crises, disasters, and others, that organizations and society in general face. In this regard, the article aims to identify the strategies implemented by restaurants in different crisis contexts, as well as the type of capabilities involved, based on the distinction between dynamic capabilities and ordinary capabilities. To do so, a literature review is used as a methodological proposal, and a sample of 271 articles and conference proceedings/presentations is selected. It is observed that the theory of dynamic capabilities is relevant to the study of the development of the restaurant industry in different crisis episodes. Likewise, the dynamic capabilities involved have shifted from those oriented towards business performance, such as maintaining income, to others in which social responsibility or sustainability practices have a greater presence