Publications by authors named "L Quintero"
: The objective of this paper is to introduce a method to measure the force or pressure over the carpal tunnel indirectly, using a new device to drive the pointer of a computer system. The measurements were compared with those obtained using an ergonomic mouse. Simultaneously, measurements of muscular stress on the digitorum extensor muscle were performed to correlate the applied force against muscle activity.
View Article and Find Full Text PDFArticle Synopsis
- Climate change is causing shifts in animal habitats, particularly affecting the distribution of threatened marine species like whale sharks.
- Projections indicate that by 2100, whale sharks could lose more than 50% of their core habitat in some areas, with significant geographic shifts that could place them in closer proximity to large ships.
- The increase in whale shark interaction with shipping is expected to be dramatically higher under high emission scenarios compared to sustainable development, highlighting the urgency for better climate-threat predictions in conservation strategies for endangered marine life.
Background: In Italy, egg donation is being allowed again following the ruling by the Constitutional Court N. 162/2014. Nevertheless, the number of voluntary donors is insignificant, probably because no reimbursement is provided.
View Article and Find Full Text PDFArticle Synopsis
- * A systematic review analyzed data from 40 studies involving 43 patients, revealing a bimodal age distribution with a higher incidence in individuals under 30 and those over 30, predominantly affecting females and usually located in mid-thoracic ribs on the left side.
- * Most rib hemangiomas are asymptomatic, though they can cause pain; diagnosis relies on imaging and clinical evaluation, and treatment often involves surgical excision, sometimes aided by preoperative embolization.
The TEMPO oxoammonium cation has been proven to be both an efficient oxidizing reagent and an electrophilic substrate frequently found in organic reactions. Here, we report that this versatile chemical reagent can also be used as an efficient promoter for C- and N-glycosylation reactions through a Ferrier rearrangement with moderate to high yields. This unprecedented reactivity is explained in terms of a Lewis acid activation of glycal by TEMPO forming a type of glycal-TEMPO mesomeric structure, which occurs through an extended vinylogous hyperconjugation toward the π* orbital [LP → π*, π* → σ*, and LP → π*].
View Article and Find Full Text PDF