Search results for "masa"
showing 10 items of 357 documents
Tres dias con Habermas o la inteligencia al servició de la razón
1981
La Pasión en dulce o el romanticismo de masa
1983
La Pasión en dulce o el romanticismo de mas
1983
Low physical activity and its association with diabetes and other cardiovascular risk factors: a nationwide, population-based study
2016
Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM; ISCIII Ministerio de Ciencia e Innovacion); Ministerio de Sanidad y Consumo; Spanish Diabetes Society (SED)
Síntesis de derivados del HMF mediante la reacción de condensación de Knoevanagel utilizando catalizadores básicos heterogéneos
2017
En la presente investigación se realizó la valoración de una molécula plataforma derivada de la biomasa, el 5-hidroximetilfurfural (HMF) mediante su conversión en compuestos de interés como monómeros para la obtención de nuevos materiales poliméricos. Concretamente, se llevo a cabo la síntesis de bis 5-((2´,2´-dicianovinil)-furfuril) éter mediante un proceso en cascada que implica como primera etapa la autoeterificación del HMF (dando lugar al éter OBMF), catalizada por el aluminosilicato mesoporoso MCM-41, seguida de la condensación de Knoevenagel de los grupos formil del OBMF con compuestos con grupos metilenos activos en presencia de catalizadores básicos heterogéneos. Además se optimizó…
¿Revuelta de Masaniello o revolución de Nápoles? Una reinterpretación
2020
Between 7 and 16 July 1647 a popular revolt, led by a young fishmonger, Masaniello, shook the city of Naples. The killing of Masaniello, however, did not lead to the end of the riots. On the contrary, the revolt involved the entire kingdom of Naples, radicalized in an anti-Spanish sense and resulted in the proclamation of the Republic and the call of a French prince, the Duke of Guisa. On these events, and especially on the fracture that permanently opposed people and nobles, historiography has long debated. It is possible, however, today, also on the basis of new archival documents, to propose a different interpretation of the events, which integrates the two moments and allows an updated …
Sistemātisks mikroplastmasas monitorings saldūdens ekosistēmā mikroplastmasas piesārņojuma un tā sezonālās dinamikas izvērtēšanai
2020
Darbā veikta ar mikroplastmasu saistītās literatūras izskatīšana, pievēršot lielāku uzmanību pētījumiem par mikroplastmasu saldūdens sistēmās. Tika veikta sezonāla Mazā Baltezera mikroplastmasas piesārņojuma noteikšana, periodiski palageāli ievācot paraugus. Veikta paraugu attīrīšanu no piemaisījumiem. Mikroplastmasas noteikšana tika veikta ar FTIR-ATR metodi. Izvirzītā hipotēze – sezonalitātei ir būtiska ietekme uz konstatēto mikroplastmasas daudzumu un polimēru veidu.
The economic impact of audit failures
2022
This paper examines the economic consequences associated with an audit failure in the field of statutory auditing services, by analyzing changes in the audit firm’s market share around the time of the investigation process undertaken by the Spanish Public Oversight Board. We explore the variations in audit market share by applying the difference in differences method to a treatment group of 70 sanctioned audit firms and a matched control group of 70 non-sanctioned audit firms. The period of analysis covers the years from 1999 to 2015. Our results show that the sanctioned audit firms suffered a significant decrease in their relative number of clients. Moreover, this measure of market share d…
Muscle and bone mass in middle‐aged women : role of menopausal status and physical activity
2020
Background. Women experience drastic hormonal changes during midlife due to the menopausal transition. Menopausal hormonal changes are known to lead to bone loss and potentially also to loss of lean mass. The loss of muscle and bone tissue coincide due to the functional relationship and interaction between these tissues. If and how physical activity counteracts deterioration in muscle and bone during the menopausal transition remains partly unresolved. This study investigated differences between premenopausal, early perimenopausal, late perimenopausal, and postmenopausal women in appendicular lean mass (ALM), appendicular lean mass index (ALMI), femoral neck bone mineral density (BMD) and T…
Predictive factors of physical activity in Spanish students based on their weight status
2018
El objetivo del presente estudio fue comparar la motivación autodeterminada hacia el ejercicio físico, autoconcepto físico, barreras hacia la actividad física e intención de ser físicamente activo entre adolescentes con y sin sobrepeso/obesidad. Una muestra de 333 escolares, de 13 a 16 años, participaron en esta investigación. Para la medición de las distintas variables se utilizaron instrumentos validados: Índice de masa corporal, Behavioral Regulation in Exercise Questionnaire, Physical Self Description Questionnaire, Autoinforme de Barreras para la Práctica de Ejercicio Físico e Intention to Be Physically Active Questionnaire. Los resultados mostraron diferencias estadísticamente signifi…