Search results for "LTR"

Psychosocial Risk Factors and Psychopathological Outcomes: Preliminary Findings in Italian Pregnant Women

2023

The perinatal period may represent a particularly challenging time for expecting parents. Previous studies have highlighted an association between several perinatal risk conditions (e.g., childhood maltreatment, poor social support, and stress levels) and the development of psychopathological symptoms in pregnant women, especially depression symptoms. The current study examined the effects of psychosocial risk factors (childhood maltreatment, poor social support, and stressful events) on anxiety, depression, perceived stress, irritability/anger, relationship problems, psychosomatic symptoms, specific physiological problems, and addiction/at-risk behaviors. Sixty-one pregnant women (age rang…

Extraction Methods of Essential Oils From Herbs and Spices

2017

International audience; This chapter describes both conventional and non‐conventional extraction methods of essential oils (EOs) from herbs and spices. Although hydrodistillation, steam distillation and solvent extraction are the most applied methods, several non‐conventional technologies have been evaluated, especially in respect to EO recovery, and a great potential has been attributed to these non‐conventional methods. For instance, ultrasound, microwave, supercritical fluid, pulsed electric fields, ohmic‐heating and microwave (MW) extraction techniques applied alone or combined with other techniques are potent tools to obtain EOs in a 'green' way from natural resources such as aromatic …

Ultrafast Interface Charge Separation in Carbon Nanodot-Nanotube Hybrids

2021

Carbon dots are an emerging family of zero-dimensional nanocarbons behaving as tunable light harvesters and photoactivated charge donors. Coupling them to carbon nanotubes, which are well-known electron acceptors with excellent charge transport capabilities, is very promising for several applications. Here, we first devised a route to achieve the stable electrostatic binding of carbon dots to multi- or single-walled carbon nanotubes, as confirmed by several experimental observations. The photoluminescence of carbon dots is strongly quenched when they contact either semiconductive or conductive nanotubes, indicating a strong electronic coupling to both. Theoretical simulations predict a favo…

Infiltrācijas anestēzijas starp paceles artēriju un ceļa mugurējo kapsulu kopā ar adduktoru kanāla blokādi analgēzijas efektivitāte pēc ceļa locītava…

2021

KOPSAVILKUMS Ievads: Pēcoperācijas sāpes samazina pacienta mobilitāti, pagarina hospitalizācijas laiku un palielina komplikāciju risku. Ir pētītas dažādas pēcoperācijas atsāpināšas shēmas pēc ceļa locītavas endoprotezešānas, tomēr problēma saglabājās. Nesen tika ieviesta adduktoru kanāla blokāde (AKB) kā selektīva sensorā fasciālā analgēzijas metode, tomēr ir pierādījumi, ka tā nenodrošina efektīvu analgēziju ceļa mugurējās kapsulas daļā, tādēļ to kombinē ar citām blokādēm. Infiltrācija starp paceles artēriju un ceļa kapsulu (IPACK) nodrošina ceļa mugurējās daļas atsāpināšanu, neradot muskuļu vājumu. Darba mērķis: Noskaidrot IPACK pievienošanas efektivitāti AKB attiecībā uz pēcoperācijas an…

Ocena stanu szkieletu u dzieci i młodzieży z cukrzycą typu 1 przy użyciu ilościowej metody ultradźwiękowej paliczków dłoni. Badanie pilotażowe

2008

Cel pracy. Ocena stanu szkieletu u dzieci i młodzieży z cukrzycą typu 1 przy użyciu ilościowej metody ultradźwiękowej paliczków dłoni. Materiał i metody. W badaniu wzięło udział 152 pacjentów, 82 chłopców i 70 dziewcząt z cukrzycą typu 1, w wieku – średnio: dziewczęta 13,11±2,93, chłopcy 12,89±3,12. Średni czas trwania choroby wynosił u dziewcząt 4,66±2,43, a u chłopców 4,19±2,36 lata. Średnia wartość hemoglobiny glikowanej HbA1c w dniu badania wynosiła w grupie dziewcząt 7,1±1,3%, a w grupie chłopców 7,2±1,2%. Grupę kontrolną stanowiło 219 zdrowych dzieci (121 chłopców i 98 dziewcząt), dobranych pod względem wieku i płci. Do oceny szkieletu użyto aparatu DBM Sonic 1200, który mierzy zależn…

Association between low-frequency ultrasound and hip fractures - comparison with DXA-based BMD

2014

Background: New methods for diagnosing osteoporosis and evaluating fracture risk are being developed. We aim to study the association between low-frequency (LF) axial transmission ultrasound and hip fracture risk in a population-based sample of older women. Methods: The study population consisted of 490 community-dwelling women (78 – 82 years). Ultrasound velocity (V LF ) at mid-tibia was measured in 2006 using a low-frequency scanning axial transmission device. Bone mineral density (BMD) at proximal femur measured using dual-energy x-ray absorptiometry (DXA) was used as the reference method. The fracture history of the participants was collected from December 1997 until the end of 2010. Li…

Topics in calculus and geometry on metric spaces

2022

In this thesis we present an overview of some important known facts related to topology, geometry and calculus on metric spaces. We discuss the well known problem of the existence of a lipschitz equivalent metric to a given quasiultrametric, revisiting known results and counterexamples and providing some new theorems, in an unified approach. Also, in the general setting of a quasi-metric doubling space, suitable partition of unity lemmas allows us to obtain, in step two Carnot groups, the well known Whitney’s extension theorem for a given real function of class C^m defined on a closed subset of the whole space: this result relies on relevant properties of the symmetrized Taylor’s polynomial…

Le non-renvoi des QPC. Unité ou diversité des pratiques de la Cour de cassation et du Conseil d'État

2018

ISBN : 978-2-37032-164-0; National audience; L'étude du non-renvoi des questions prioritaires de constitutionnalité (QPC) par les Cours suprêmes présente un caractère singulier à bien des égards et notamment car elle touche à l'office du juge ; à son discours et au contrôle des lois par rapport à la norme suprême. Aussi surprenant soit-il, et bien que le mécanisme de la QPC soit effectif depuis le 1er mars 2010, aucune analyse globale n'a été réalisée sur cette problématique, alors même qu'elle permettrait de préciser le contenu des modalités de renvoi qui conditionnent les chances de succès des recours ; de délimiter l'office des Cours suprêmes, et d'observer le cas échéant, son élargissem…

Development of a methodology for the detection of vertical split head defects in the rail

2011

Strongly Coupled Coherent Phonons in Single-Layer MoS 2

2019

We present a transient absorption setup combining broadband detection over the visible-UV range with high temporal resolution ($\sim$20fs) which is ideally suited to trigger and detect vibrational coherences in different classes of materials. We generate and detect coherent phonons (CPs) in single layer (1L) MoS$_2$, as a representative semiconducting 1L-transition metal dichalcogenide (TMD), where the confined dynamical interaction between excitons and phonons is unexplored. The coherent oscillatory motion of the out-of-plane $A'_{1}$ phonons, triggered by the ultrashort laser pulses, dynamically modulates the excitonic resonances on a timescale of few tens fs. We observe an enhancement by…