La acción individual de responsabilidad del administrador concursal

El trabajo estudia el régimen de la acción individual de responsabilidad del administrador concursal regulado en el artículo 36.6 de la Ley Concursal. En concreto, se abordan cuestiones relativas a la finalidad y caracteres del régimen, presupuestos que han de darse para que surja la responsabilidad, sujetos responsables así como los aspectos procesales de la acción

Complejidad y sostenibilidad de dos agro ecosistemas con cacao, Siuna, 2017

This research was carried out in El Carao-Hormiguero Community, Siuna, 2017, in the farms of Los Laureles belonging to Mr. German Valerio Pérez and El Encanto belonging to Mr. Carlos López Lagos, with the purpose of evaluating the complexity and sustainability of two agro ecosystems with cocoa through the management of biodiversity in agroecosystems and determine the level of sustainability in the sociocultural, economic and agro-environmental aspects. Two methodologies were applied, Vázquez (2013) which evaluates six indicatives and 64 indicators, they are measured with a range of (0-4) being this a standard value to measure the level of complexity of the production systems and HESOFI (2015) that evaluates 71 indicators, 12 components and 3 criteria such as sociocultural, economic and agro-environmental and for each criterion a value of 100 is assigned. The coefficient and management of biodiversity in the Los Laureles Farm is moderately complex with a level of 2.61 (56.71%) with a satisfactory rating and El Encanto Farm 1.60 (33.44%), being determined as an uncomplicated production system with a moderately satisfactory rating. The level of sustainability measured by the socio-cultural, economic and agro-environmental dimensions for El Encanto farm was 132 out of 300, its strength lies on the sociocultural (66%), agro-environmental (41%) and economic with (25%). Los Laureles farm presented a value of 202 out of 300, its greatest strength being the sociocultural (75%), the agro-environmental (69%) and the economic (58%). These results indicate that Los Laureles farm has a degree of sustainability of (67.40%), and El Encanto farm with (44.19%).Esta investigación se realizó en la comunidad El Carao-Hormiguero, Siuna, 2017, en las fincas Los Laureles del Sr. German Valerio Pérez y El Encanto del Sr. Carlos López Lagos, con el fin de evaluar la complejidad y sostenibilidad de dos agro ecosistemas con cacao a través de manejo de biodiversidad en los agroecosistemas y determinar el nivel de sostenibilidad en el aspecto sociocultural, económico y agro-ambiental.         Se aplicaron dos metodologías, Vázquez (2013) la cual evalúa seis indicativos y 64 indicadores, se miden con un rango de (0-4) siendo este un valor estándar para medir el nivel de complejidad de los sistemas de producción y HESOFI (2015) que evalúa 71 indicadores, 12 componentes y 3 criterios, sociocultural, económicos y agro-ambiental y para cada criterio se asigna un valor de 100.          El coeficiente y manejo de la biodiversidad en la finca Los Laureles es medianamente complejo con un nivel del 2.61 (56.71%) con un índice satisfactorio y El Encanto 1.60 (33.44%), determinándose como un sistema de producción poco complejo con índice medianamente satisfactorio.            El nivel de sostenibilidad que miden las dimensiones socio-cultural, económica y agro-ambiental para la finca El Encanto fue de 132 de 300, su fuerza radica en lo sociocultural con (66%), agro-ambiental con (41%) y económico con un (25%). Los Laureles presentó un valor de 202 de 300, su mayor fuerte fue lo sociocultural (75%), lo agro- ambiental (69%) y lo económico (58%). Tales resultados indican que Los Laureles cuenta con un grado de sostenibilidad del (67.40%), y El Encanto con (44.19%)

Edad y conducta sexual en Triatoma pallidipennis Stal (hemiptera reduviidae) en condiciones de laboratorio

La conducta sexual de varias especies de triatominos ha sido estudiada. Estos tienen una gran relevancia por los aportes potenciales que podrían brindar para el control de las poblaciones de estos vectores. Triatomapallidipennis es la especie más abundante en México y poco se conoce sobre el comportamiento sexual. Se utilizaron cinco grupos de ejemplares de T. pallidipennis, con tres repeticiones del experimento para cada grupo, en los que se evaluó la ocurrencia de cópula de 1 hembra y 3 machos ambos con distinta edad y estados nutricionales. Se observó lacópula de 10 hembras de un total de 15. Los machos viejos con ingesta de sangre o sin alimentar fueron los seleccionados por las hembras, lo cual demuestra que las hembras eligen sus parejas por la edad del macho. Seobservaron rechazos ante los intentos de cópula del macho en esta especie. Las hembras copularon una vez, aunque en pocos casos, finalizada esta con los machos viejos, la mantuvieron con un macho joven, no pudiéndose comprobar competencia espermática. Las hembra de T. pallidipennis aceptan a los machos más viejos para la cópula la cual ocurre de manera general una sola vez, no evidenciándo un sistema poliándrico en este estudio.Fil: Moralez Ortiz, Iris. Benemérita Universidad Autónoma de Puebla; MéxicoFil: Zumaquero Ríos, Jose Lino. Benemérita Universidad Autónoma de Puebla; MéxicoFil: Hernández López, Edwin Jovani. Benemérita Universidad Autónoma de Puebla; MéxicoFil: Sandoval Ruiz, Cesar. Benemérita Universidad Autónoma de Puebla; MéxicoFil: Manrique, Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Biodiversidad y Biología Experimental y Aplicada. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Biodiversidad y Biología Experimental y Aplicada; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental. Laboratorio de Fisiología de Insectos; Argentin

Validated method for polystyrene nanoplastic separation in aqueous matrices by asymmetric-flow field flow fraction coupled to MALS and UV-Vis detectors

Altres ajuts: acords transformatius de la UABPlastics with nanosize (nanoplastics, NPLs) must be characterized, since they can be toxic or act as carriers of organic and inorganic pollutants, but there is a lack of reference materials and validated methods in the nanosize range. Therefore, this study has focused on the development and validation of a separation and size characterization methodology of polystyrene latex nanospheres, by using an asymmetric-flow field flow fraction system coupled to multi-angle light scattering and ultraviolet-visible detectors (AF4-MALS-UV). Hence, this work presents a fully validated methodology in the particle size range 30 to 490 nm, with bias between 95 and 109%, precision between 1 and 18%, LOD and LOQ below 0.2 and 0.3 µg respectively, except for 30-nm standard, for both detectors, and showing stable results for 100 analyses

Antioxidant capacity of different cheeses: Affecting factors and prediction by near infrared spectroscopy

In this study, we analyzed antioxidant capacity of 224 cheese samples prepared using 16 varied mixtures of milk from cows, ewes, and goats, in 2 manufacturing seasons (winter and summer), and over 6 mo of ripening. Antioxidant capacity was evaluated using the spectrophotometric 2,2-azinobis(3-ethylenebenzothiazoline-6-sulfonic acid) (ABTS) method. Total antioxidant capacity was significantly correlated with season of manufacturing and time of ripening but not with animal species providing the milk. Moreover, statistically significant correlations between the total antioxidant capacity and retinol (r = 0.399), fat percentage (r = 0.308), protein percentage (r = 0.366), K (r = 0.385), Mg (r = 0.312), Na (r = 0.432), and P (0.272) were observed. We evaluated the use of near infrared spectroscopy technology, together with the use of a remote reflectance fiber-optic probe, to predict the antioxidant capacity of cheese samples. The model generated allowed us to predict antioxidant capacity in unknown cheeses of different compositions and ripening times.Junta de Castilla y León SA1390

Control of quality and silo storage of sunflower seeds using near infrared technology

En este trabajo se evalúa la espectroscopía de infrarrojo cercano para su uso en el control de calidad y almacenamiento de semillas de girasol. Los resultados indican que el método analítico empleado puede utilizarse como método de determinación rápida de humedad, grasa y contenidos altos/bajos de ácido oleico. Los rangos de aplicación son comparables con los valores que se han determinado mediante métodos clásicos de análisis, encontrándose entre 4.6-21.4% la humedad, 38.4-49.6% la grasa y 60.0- 93.1% de ácido oleico del total de los ácidos grasos. Además se ha utilizado un análisis discriminarte lineal por pasos determinando las longitudes de onda más adecuadas para la clasificación de semillas de girasol en los grupos alto/bajo oleico. El modelo generado permitió la clasificación de semillas de girasol en los grupos alto y bajo oleico con unos porcentajes de muestras correctamente clasificadas de un 90.5% en validación interna y de un 89.4% en validación cruzadaThis work assesses the application of near infrared spectroscopy technology for the quality control of sunflower seeds direct from farmers and from a storage silo. The results show that the analytical method employing near infrared spectroscopy can be used as a rapid and non-destructive tool for the determination of moisture, fat and high/low oleic acid contents in samples of sunflower seeds. The ranges obtained were comparable to those reported for classic chemical methods, and were between 4.6-21.4% for moisture; 38.4-49.6% for fat, and 60.0-93.1% for oleic acid expressed as percentage of total fatty acids. A stepwise discriminant analysis was performed to determine the most useful wavelengths for classifying sunflower seeds in terms of their (high/low) oleic acid composition. The discriminant model allows the classification of sunflower seeds with high or low oleicacid contents, with a prediction rate of 90.5% for internal validation and of 89.4% for cross-validatio

Non-Excitatory Amino Acids, Melatonin, and Free Radicals: Examining the Role in Stroke and Aging

The aim of this review is to explore the relationship between melatonin, free radicals, and non-excitatory amino acids, and their role in stroke and aging. Melatonin has garnered significant attention in recent years due to its diverse physiological functions and potential therapeutic benefits by reducing oxidative stress, inflammation, and apoptosis. Melatonin has been found to mitigate ischemic brain damage caused by stroke. By scavenging free radicals and reducing oxidative damage, melatonin may help slow down the aging process and protect against age-related cognitive decline. Additionally, non-excitatory amino acids have been shown to possess neuroprotective properties, including antioxidant and anti-inflammatory in stroke and aging-related conditions. They can attenuate oxidative stress, modulate calcium homeostasis, and inhibit apoptosis, thereby safeguarding neurons against damage induced by stroke and aging processes. The intracellular accumulation of certain non-excitatory amino acids could promote harmful effects during hypoxia-ischemia episodes and thus, the blockade of the amino acid transporters involved in the process could be an alternative therapeutic strategy to reduce ischemic damage. On the other hand, the accumulation of free radicals, specifically mitochondrial reactive oxygen and nitrogen species, accelerates cellular senescence and contributes to age-related decline. Recent research suggests a complex interplay between melatonin, free radicals, and non-excitatory amino acids in stroke and aging. The neuroprotective actions of melatonin and non-excitatory amino acids converge on multiple pathways, including the regulation of calcium homeostasis, modulation of apoptosis, and reduction of inflammation. These mechanisms collectively contribute to the preservation of neuronal integrity and functions, making them promising targets for therapeutic interventions in stroke and age-related disorders.This work was supported by MICIU (grant number PID2021-128133NB-I00/AEI/FEDER10.13039/501100011033) to J.M.H.-G. and V.J.C. enjoys a contract from the CAM “Investigo” program (PIP/2022-09971). A.R. thanks UCJC (INFLAMAMEL 2022-07 project) for its continued support

Inactivation of Fgf3 and Fgf4 within the Fgf3/Fgf4/Fgf15 gene cluster reveals their redundant requirement for mouse inner ear induction and embryonic survival

[Background]: Fibroblast growth factors (Fgfs) are required for survival and organ formation during embryogenesis. Fgfs often execute their functions redundantly. Previous analysis of Fgf3 mutants revealed effects on inner ear formation and embryonic survival with incomplete penetrance. [Results]: Here, we show that presence of a neomycin resistance gene (neo) replacing the Fgf3 coding region leads to reduced survival during embryogenesis and an increased penetrance of inner ear defects. Fgf3neo/neo mutants showed reduced expression of Fgf4, which is positioned in close proximity to the Fgf3 locus in the mouse genome. Conditional inactivation of Fgf4 during inner ear development on a Fgf3 null background using Fgf3/4 cis mice revealed a redundant requirement between these Fgfs during otic placode induction. In contrast, inactivation of Fgf3 and Fgf4 in the pharyngeal region where both Fgfs are also co-expressed using a Foxg1-Cre driver did not affect development of the pharyngeal arches. However, these mutants showed reduced perinatal survival. [Conclusions]: These results highlight the importance of Fgf signaling during development. In particular, different members of the Fgf family act redundantly to guarantee inner ear formation and embryonic survival.Consejería de Educación, Junta de Castilla y León, Grant/Award Number: CSI143P20; Programa Estratégico Instituto de Biología y Genética Molecular (IBGM), Escalera de Excelencia, Junta de Castilla y León, Grant/Award Numbers: CCVC8485, CLU-2019-02; MEC, Grant/Award Number: BFU2004-00860/BF