Sustainability performance in firms located in a science and technology park: the influence of knowledge sources and absorptive capacity

Purpose – The purpose of this study is to identify how firms’ sustainability performance is affected by external knowledge sources and absorptive capacity, accounting for the influence of being located in a science and technology park (STP). Design/methodology/approach – Drawing on data from the Spanish Technological Innovation Panel, the authors estimate the determinants of sustainability performance using fixed effects multiple linear regression models with robust standard errors. The analysis covers the period 2009–2016, with a total panel of 8,874 companies and a total sample of 47,870 observations. Findings – This study highlights the heterogeneity in on-park firms’ sustainability performance, which can be explained by the different capacities of these firms when it comes to embedding themselves in STP networks and processes and effectively absorbing the knowledge from the many knowledge sources that may be on offer in the park. Originality/value – This paper contributes to the literature by examining the influence of external sources of knowledge and absorptive capacity, and the relationship between them, on sustainability performance. This study approaches sustainability performance as an aggregate measure of firms’ competitiveness and potential for long-term survival from the triple bottom line perspective. In addition, this study examines the effect that location in an STP can have on business sustainability performance and, more specifically, the mediating effect that knowledge sources and absorptive capacity can exert on this relationship

Revisión del género Hermodice Kinberg, 1857 (Polychaeta: Amphinomidae)

The genus Hermodice Kinberg, 1857 was established with the species Aphrodita carunculata Pallas, 1766, based on the shape and development of the caruncle. Several species were later described within the genus; however, it is currently regarded as monotypical, with H. carunculata as a widespread species. An evaluation of available type and non-type specimens together with observations of living specimens has allowed the diagnostic features to be refined, and two new features have been included: the number of branchial filaments and the anal lobe. Consequently, in this study we have been able to confirm the differences between Hermodice and Pherecardia Horst, 1886. The type species, H. carunculata, has been redescribed, and H. nigrolineata Baird, 1870 has been re-established. Further, H. formosa (Quatrefages, 1866) has been transferred to Pherecardia, together with H. pennata Treadwell, 1906 and H. distincta Hoagland, 1920.El género Hermodice, Kinberg, 1857 se estableció con la especie Aphrodita carunculata Pallas, 1766, debido a la forma y desarrollo de la carúncula. Posteriormente, se describieron varias especies dentro del género. Sin embargo, actualmente se considera que el género es monotípico y que H. carunculata es una especie cosmopolita. La revisión de material tipo y especímenes adicionales, incluyendo ejemplares vivos, nos ha permitido redefinir las características diagnósticas e incorporar dos nuevos atributos: el número de filamentos branquiales y el lóbulo anal. Como consecuencia, ha sido posible confirmar las diferencias entre Hermodice y Pherecardia Horst, 1886. Así mismo, se redescribe la especie tipo H. carunculata y se reestablece H. nigrolineata Baird, 1870. Además, H. formosa (Quatrefages, 1866) se transfiere a Pherecardia, junto H. pennata Treadwell, 1906 y H. distincta Hoagland, 1920

Efectividad de la ingesta oral de líquidos sobre la satisfacción materna y el bienestar fetal durante el proceso de parto

CONCLUSION En coherencia al objetivo general, concluimos: La ingesta oral de bebidas isotónicas durante la fase activa de parto, no altera el bienestar fetal no se ve alterado ni altera la progresión normal del parto y, además, está asociada a un nivel alto de satisfacción en mujeres con riesgo asociado bajo o medio, en parturientas con demanda de la analgesia epidural y con prescripción de oxitocina.INTRODUCCIÓN La ingesta oral de líquidos durante el proceso del parto no es una intervención sistemática en nuestros paritorios (Singata et al., 2013), existiendo cierta discrepancia entre los profesionales sanitarios durante la atención a la mujer parturienta, por el miedo al riesgo de sufrir la parturienta el llamado Síndrome de Meldenson en 1946 (Mendelson, 1946). Así mismo, existen escasos estudios dónde reflejen la percepción de las mujeres en relación con la hidratación oral mediante líquidos claros durante su proceso de parto activo, al igual que su satisfacción respecto a los cuidados recibidos en relación a esta práctica clínica. Al igual que existen escasos estudios dónde con riesgo aumentado en la gestación se compruebe el beneficio de esta práctica en relación a las necesidades de hidratación intravenosas y orales de la parturienta, así como la valoración de la progresión del parto activo, el bienestar fetal durante el mismo, el modo de finalización del parto y el Apgar del recién nacido. Tampoco hallamos estudios concluyentes con riesgo aumentado en la gestación de la parturienta en relación a esta ingesta oral de líquidos claros y la prescripción de oxitocina y la demanda paliativa del dolor mediante la analgesia epidural. OBJETIVO GENERAL Evaluar la efectividad de la hidratación oral con bebidas isotónicas en comparación con la administración oral de agua, sobre la satisfacción materna y el bienestar fetal, en mujeres con gestación de bajo y medio riesgo y con control de la progresión normal en su parto. METODOLOGÍA Estudio experimental, paralelo y prospectivo analítico, con asignación aleatoria al grupo control o al grupo experimental, compuesto por un grupo de 52 mujeres al que se le administró una bebida isotónica y otro grupo de 52 mujeres que ingirió agua embotellada

Una reflexión en torno a los obstáculos epistemológicos que afectan el proceso de construcción de conocimientos sobre la infancia en la formación de Profesores/as y Licenciados/as en Educación Inicial

La incorporación de la asignatura “La Educación Inicial en el contexto actual” en el primer año de las carreras de Profesorado y Licenciatura de Educación Inicial, persigue una aproximación teórica y práctica a fin de que los/as estudiantes comprendan el papel que le cabe la Educación Inicial como primer nivel de escolarización. Al indagar acerca de lo que es la infancia, surgen dos grupos de respuestas que evidencian conocimientos que derivan de la experiencia básica y de la naturalización del discurso hegemónico arraigado en el sentido común: aquellas que dan cuenta de una infancia idealizada y aquellas que la explican a partir del desarrollo natural. También muestran una invisibilización de la pluralidad de las infancias contemporáneas. En este trabajo se retoman las ideas de Bachelard para reflexionar acerca de los obstáculos epistemológicos que presentan los/las estudiantes en el proceso de construcción de conocimientos científicos sobre la infancia. En un primer apartado se presenta el espacio curricular y las problemáticas advertidas en relación a la apropiación de saberes acerca de la infancia. Luego se profundiza la reflexión en algunos de los obstáculos que presentan los/las estudiantes en el acto de conocer y por último se explicitan algunas propuestas de enseñanza para superarlos

La enseñanza del español a inmigrantes y refugiados : análisis de revisión y materiales y manuales

Debido al actual incremento de personas inmigrantes y refugiadas que llegan a España en busca de una vida mejor, se insiste en la urgencia de crear un programa de actuación adecuado para la enseñanza del Español como Lengua Extranjera (ELE). Hay que atender las necesidades específicas de este colectivo y crear unos materiales coherentes a sus características e intereses para favorecer una rápida integración social. Para ello, investigaremos quiénes son estas personas que formarán parte de nuestras clases de ELE, y en qué contextos aprenderán la lengua. También analizaremos qué tipo de manuales específicos de ELE para inmigrantes hay disponibles, y qué características presentan respecto a los generales de ELE que encontramos en el mercadoMáster Universitario en Formación de Profesores de Español (M057). Especialidad en Enseñanza de Español como Lengua Extranjer

The interplay between firms' capabilities and ownership in explaining environmental performance

Purpose This study empirically assesses the effects of two key types of organizational and managerial capabilities—dynamic capabilities, and coordination and cohesion capabilities—on environmental performance, considering the moderating effect of family ownership. By applying the tenets of the natural resource-based view and the dynamic capabilities theory, this paper offers new insights into the topic. Design/methodology/approach The article presents empirical evidence from a survey of 1,019 firms operating in the Spanish tourism sector analyzed using multiple linear regression. Findings Overall, our results show that both dynamic capabilities and coordination and cohesion capabilities have direct and synergetic positive effects on environmental performance. In addition, the results confirm recent studies that report conflicting evidence on how family ownership affects environmental performance: family ownership is found to exert a distinct direct effect on environmental performance and on the development and application of the capabilities required to improve such performance. Originality/value This article sheds light on the conceptual frontiers between the different types of capabilities, as well as provides practical ways of measuring them. The article also brings evidence to bear on the debate concerning the direct and moderating effect that family ownership exerts on the relationship between both types of capabilities over environmental performance. The results of this analysis confirm the complexity of the family ownership effect on this aspect, and provide important insights for both business practitioners and academics

Potato peels waste as a sustainable source for biotechnological production of biofuels: Process optimization

Financiado para publicación en acceso aberto: Universidade de Vigo/CISUGPotato peel waste (PPW) is a starchy by-product generated in great amounts during the industrial processing of potatoes. It can be used as a low cost alternative, and renewable feedstock for the production of second generation bioethanol. In order to intensify this process, Saccharomyces cerevisiae Ethanol Red®, a robust and thermotolerant yeast strain, was selected and two experimental designs and response surfaces assessment were conducted to enable very high gravity fermentations (VHGF) using PPW as feedstock. The first one focused on the optimization of the liquefaction and enzymatic hydrolysis stages, enabling a maximum ethanol concentration of 116.5 g/L and a yield of 80.4 % at 72 h of fermentation; whereas, the second one, focus on the optimization of the pre-saccharification and fermentation stages, which further increased process productivity, leading to a maximum ethanol concentration of 108.8 g/L and a yield of 75.1 % after 54 h of fermentation. These results allowed the definition of an intensified pre-saccharification and simultaneous saccharification and fermentation (PSSF) process for ethanol production from PPW, resorting to short liquefaction and presaccharification times, 2 h and 10 h respectively, at an enzyme loading of 80 U/g PPW of Viscozyme and 5 UE/g PPW of SAN Super and a higher fermentation temperature of 34 ◦C due to the use of a thermotolerant yeast. Overall, with these conditions and solely from PPW without any supplementation, the outlined PSSF process allowed reaching a high ethanol concentration and yield (104.1 g/L and 71.9 %, respectively) standing at high productivities with only 54 h of fermentation.Xunta de Galicia | Ref. ED431F 2020/03Xunta de Galicia | Ref. GRC ED431C 2022/08Xunta de Galicia | Ref. GRC ED431C 2021/46Ministerio de Economía y Competitividad | Ref. PID2020-116717RB-I00Ministerio de Economía y Competitividad | Ref. PID2019- 110031RB-I00Ministerio de Economía y Competitividad | Ref. RYC2018-026177-IXunta de Galicia | Ref. UIDB/ 04469/2020Fundação para a Ciência e a Tecnologia | Ref. UIDB/ 04469/202

A Comparative Assessment on the Recovery of Pectin and Phenolic Fractions from Aqueous and DES Extracts Obtained from Melon Peels

Financiado para publicación en acceso aberto: Universidade de Vigo/CISUGThis work evaluates the purification of melon peel extracts obtained by two eco-friendly methods: autohydrolysis and sodium acetate/urea/water extraction (1:3:1.6), an alkaline deep eutectic solvent (DES). For that, sequential ethanol precipitation and resin adsorption/desorption stages were proposed for the separate recovery of the pectic and phenolic fractions. In order to screen the optimal purification conditions, in a first step, the effect of ethanol concentrations (from 70 to 85%) on the precipitation of pectic oligosaccharides was assayed. Subsequently, the influence of the selected resin (Amberlite XAD4, XAD16HP and XAD7HP), liquid/resin ratios, and desorption sequences (varying ethanol concentrations and pH) on the phenolic compounds was also studied. The highest pectin yields were achieved with 85% ethanol: 16.11 and 18.05 g pectin/100 g water-insoluble solids (WIS) for autohydrolysis and DES extracts, respectively. All pectins presented a galacturonic acid content of about 45%, while autohydrolysis pectin presented a higher amount of neutral sugar side chains. The presence of low methoxyl GalA and both linear and branched OGalA with DP from 2 to 20 was also confirmed by FTIR and HPAEC-PAD analysis, respectively. Concerning the phenolic fraction, the resin adsorption and desorption steps at the selected conditions (XAD4 resin, liquid/resin ratio of 2 mL/g, eluted with 50% ethanol thrice) resulted in 79.55 and 4.08 mg GAE/g non-volatile content (NVC) for autohydrolysis and DES extracts, respectively, with improved antioxidant capacity. Moreover, some phenolic acids (protocatechuic and ferulic acids) and flavonoids (orientin, vitexin and naringenin) were quantified in the extracts by HPLC–PDA-MS/MS.Agencia Estatal de Investigación | Ref. RYC2018-026177-IXunta de Galicia | Ref. ED431C 2018/47Xunta de Galicia | Ref. reference ED481A-2018/300Xunta de Galicia | Ref. ED431F 2020/0

Evaluation of strategies for enhanced bioethanol production from melon peel waste

Financiaciado para publicación en acceso aberto: Universidade de Vigo/CISUGMelon peels can be a low-cost raw material for the production of bioethanol due to its high worldwide production and contents in cellulose, protein and minerals. In this work, several strategies were proposed for this purpose. Centrifugation of the raw material and autohydrolysis of the washed solid were used as pretreatment for the recovery of a sugar rich juice and a glucan rich solid, respectively. The enzymatic hydrolysis of the autohydrolysis spent solid was studied by response surface assessment. High glucose concentrations (35.15 g/L after 24 h) and yields were obtained operating at a liquid solid ratio of 10 g/g and cellulase to solid ratio of 17.5 FPU/g. In the selected conditions, the simultaneous saccharification and fermentation (SSF) of the solid was studied using the juice (virgin and concentrated) in the formulation of the media. Moreover, the separate fermentation of the juice (virgin and concentrated) was also evaluated, as well as a pre-fermentation followed by SSF. Finally, several scenarios were proposed, achieving the maximum bioethanol production by SSF and separate juice fermentation (17.84 g/100 g melon peel), and the maximum concentration by SSF using concentrated juice in the formulation of the medium (56.24 g/L).Xunta de Galicia | Ref. GRC ED431C 2018/47Xunta de Galicia | Ref. ED431F 2020/03Ministerio de Economía y Competitividad | Ref. RYC2018- 026177-IXunta de Galicia | Ref. ED481A-2018/30

Exploiting the potential of bioactive molecules extracted by ultrasounds from avocado peelsfood and nutraceutical applications

Natural bioactive compounds from food waste have fomented interest in food and pharmaceutical industries for the past decade. In this work, it purposed the recovery of bioactive avocado peel extract using an environmentally friendly technique: the ultrasound assisted extraction. The response surface methodology was applied in order to optimize the conditions of the extraction, ethanol-water mixtures and time. The optimized extracts (ethanol 38.46%, 44.06 min, and 50 °C) were chemically characterized by HPLC-ESI-MS and FTIR. Its antioxidant ability, as well as, its effect on cell metabolic activity of normal (L929) and cancer (Caco-2, A549 and HeLa) cell lines were assessed. Aqueous ethanol extracts presented a high content in bioactive compounds with high antioxidant potential. The most representative class of the phenolic compounds found in the avocado peel extract were phenolic acids, such as hydroxybenzoic and hydroxycinnamic acids. Another important chemical group detected were the flavonoids, such as flavanols, flavanonols, flavones, flavanones and chalcone, phenylethanoids and lignans. In terms of its influence on the metabolic activity of normal and cancer cell lines, the extract does not significantly affect normal cells. On the other hand, it can negatively affect cancer cells, particularly HeLa cells. These results clearly demonstrated that ultrasound is a sustainable extraction technique, resulting in extracts with low toxicity in normal cells and with potential application in food, pharmaceutical or nutraceutical sectors.The authors acknowledge the financial support received from “Xunta de Galicia” (GRC ED431C 2017/62-GRC, and Project ED431F 2020/03). These projects are partially funded by the FEDER Program of the European Union (“Unha maneira de facer Europa”). This research was also funded by the Portuguese Foundation for Science and Technology (FCT) under the scope of the strategic funding of UIDB/04469/2020 unit. Beatriz Gullón would like to express her gratitude to the Spanish Ministry of Economy and Competitiveness for her postdoctoral grant (Reference RYC2018-026177-I).info:eu-repo/semantics/publishedVersio