Search results for "fer"
showing 10 items of 33109 documents
Aplicaciones de la Resonancia Magnética Nuclear en el estudio de la Infertilidad
2015
En los últimos años se ha producido una reducción en el número de nacimientos en muchos países, fundamentalmente europeos. Esta reducción puede ser debida a diversos factores que afecten a la fertilidad de la mujer tales como factores culturales, sociales y económicos que aumentan la edad de la mujer para concebir su primer hijo, causas inmunitarias, alteraciones del aparato reproductor femenino, causas hipotalámico-hipofisarias y factores relacionados con el estilo de vida entre otros. Estos problemas de fertilidad se pueden solucionar mediante diversos tratamientos de reproducción asistida, como la inseminación artificial o la fecundación in vitro. En estos últimos, el ovocito que se empl…
Switching spatial scale reveals dominance-dependent social foraging tactics in a wild primate
2017
When foraging in a social group, individuals are faced with the choice of sampling their environment directly or exploiting the discoveries of others. The evolutionary dynamics of this trade-off have been explored mathematically through the producer-scrounger game, which has highlighted socially exploitative behaviours as a major potential cost of group living. However, our understanding of the tight interplay that can exist between social dominance and scrounging behaviour is limited. To date, only two theoretical studies have explored this relationship systematically, demonstrating that because scrounging requires joining a competitor at a resource, it should become exclusive to high-rank…
Expired Tidal Volume and Respiratory Rate During Postnatal Stabilization of Newborn Infants Born at Term via Cesarean Delivery
2021
Objective To retrieve evolving respiratory measures in the first minutes after birth in normal neonates born at term using a respiratory function monitor. Study design We evaluated newborn babies delivered at term via cesarean after uncomplicated pregnancies. Immediately after birth, a respiratory function monitor with an adapted flowmeter and a face mask were applied at 2, 5, and 10 minutes after birth for 90 seconds in each period. We analyzed expired and inspired tidal volume, respiratory rate (RR), percentage of leakage, and number of analyzed breaths in each individual infant's recording using a respiratory research software. Results A total of 243 infants completed the study. The fina…
Effetti del diverso management colturale e della dose di fertilizzante organico su biomassa ed attività microbica del suolo
2008
Attività pericolosa, responsabilità civile e tutela previdenziale indennitaria
2014
Recenti sviluppi della giurisprudenza di legittimità in tema di responsabilità e tutela del cessionario d'azienda
2021
L’ordinanza della Corte di Cassazione afferma in modo non condivisibile che la responsabilità del cessionario che abbia trascurato di richiedere la certificazione prevista dall’art. 14,comma3, del D.Lgs. n. 472/1997 possa essere estesa anche ad imposte e sanzioni commesse prima del secondo anno anteriore a quello in cui è intervenuta la cessione, anche se constatate dopo il trasferimento dell’azienda. I giudici di legittimità correttamente fanno dipendere l’aggravamento della responsabilità del cessionario dalla consapevolezza della frode posta in essere dal cedente. Tuttavia escludono la necessità di notificare a quest’ultimo l’avviso di accertamento che costituisce il presupposto dell’isc…
New centrality in UNESCO buffer-zones: two Mediterranean case studies. Per una nuova centralità delle buffer-zones UNESCO: due casi studio nel Medite…
2022
The paper presents an interdisciplinary reflection on the potential for sustainable development of communities and their cultural landscapes expressed by UNESCO Buffer Zones in the Mediterranean, with the intention of transforming their widespread perception as mere tools of protection and urban planning into concrete integrated proposals for protection and enhancement, and also taking into account the role of museums in promoting the understanding of cultural heritage and the maturation of an awareness of the value of such actions. With reference to the 2004 guidelines UNESCO and starting from the evaluation of some management plans, such as that of the Arab-Norman itinerary in Palermo and…
Rapid change in forms of inorganic nitrogen in soil and moderate weed invasion following translocation of wet meadows to reclaimed post‐industrial la…
2019
Anthropogenic expansion and loss of natural environments calls for the more sustainable use of resources, including land. To combine the conservation of highly valuable meadow habitat with reclamation of post‐industrial land, 1.3 ha of turf were translocated from an urban area to basins constructed near an abandoned quarry. In contrast to the usual method of choosing similar habitats as salvage sites, the selected quarry possessed different environmental properties to the meadows, challenging their acclimatisation. To evaluate the project, we monitored three meadows (Molinion caeruleae alliance) for three seasons: immediately before the transfer and for 2 years afterwards. We recorded veget…
Low levels of both xanthine dehydrogenase and of cellular retinol binding protein are responsible for retinoic acid deficiency in malignant human mam…
2009
The seeming impairment of retinoid metabolism in human breast tumor cells has been attributed to the lower expression of cellular retinol binding proteins (CRBPs), of alcohol/retinol dehydrogenases, or aldehyde/retinaldehyde dehydrogenases. In a previous study we indicated that xanthine dehydrogenase (XDH) is able to oxidize actively both all-trans-retinol (t-ROL) bound to the CRBP (holo-CRBP) and all-trans-retinaldehyde (t-RAL) to all-trans-retinoic acid (t-RA) in human mammary epithelial cells (HMEC). Since both XDH and CRBP are required for the biosynthesis of t-RA, we have inspected their bioavailability in both estrogen-responsive and nonresponsive human mammary epithelial cancer cells…
Hypovitaminosis D, oral potentially malignant disorders, and oral squamous cell carcinoma: a systematic review
2021
Oral squamous cell carcinoma (OSCC) and potentially malignant oral disorders (OPMDs) could be associated with low levels of vitamin D. This systematic review aimed to determine the relationship between serum levels of vitamin D with OPMDs and OSCC. This review was conducted according to Cochrane guidelines (PROSPERO CRD42020207382) on literature retrieved from the PubMed, Cochrane, and Web of Science databases. The antecedents extracted were study design, methodology, sample (country, number of patients, age, and sex), oral manifestations (type of lesion, location, prevalence, and follow-up), serum vitamin D levels or use of vitamin D supplements, results, and conclusions. Twelve articles w…