Search results for "FRAP"
showing 10 items of 31 documents
Euclid preparation : XX. The Complete Calibration of the Color–Redshift Relation survey : LBT observations and data release
2022
The Complete Calibration of the Color–Redshift Relation survey (C3R2) is a spectroscopic program designed to empirically calibrate the galaxy color–redshift relation to the Euclid depth (IE = 24.5), a key ingredient for the success of Stage IV dark energy projects based on weak lensing cosmology. A spectroscopic calibration sample that is as representative as possible of the galaxies in the Euclid weak lensing sample is being collected, selecting galaxies from a self-organizing map (SOM) representation of the galaxy color space. Here, we present the results of a near-infrared H- and K-band spectroscopic campaign carried out using the LUCI instruments at the LBT. For a total of 251 galaxies,…
Challenges in the use of Near Infrared Spectroscopy for improving wood quality : A review
2017
Aims of study: Forestry-related companies require quality monitoring methods capable to pass a large number of samples. This review paper is dealing with the utilization of near infrared (NIR) technique for wood analysis. Area of study: We have a global point of view for NIR applications and characterization of different kind of wood species is considered. Material and methods: NIR spectroscopy is a fast, non-destructive technique, applicable to any biological material, demanding little or no sample preparation. NIR spectroscopy and multivariate analysis serve well in laboratories where the conditions are controlled. The main challenges to NIR spectroscopy technique in field conditions are …
Phase-selective low molecular weight organogelators derived from allylated D-mannose
2022
In the last decades, synthesis and design of low molecular weight organogelators has gained increasing attention due to their versatile use in, for example, cosmetics, biomedicine and oil spill remediation. In this work, three potential gelators have been prepared from allylated d-mannose. Both the gelators and the corresponding gels formed were thoroughly characterized by crystallography, FTIR spectroscopy, SEM, rheometry and NMR spectroscopy, in solution and in solid state. The results showed that two of the compounds phase-selectively form gels with hydrocarbon solvents. The most promising gelator compound is alkene terminated, with the unsaturated end functionality not critical for gel …
Hoffa’s fat pad thickness: a measurement method with sagittal MRI sequences
2021
Abstract Background Hoffa’s fat pad is a structure located within the fibrous joint capsule of the knee joint, but outside the synovial cavity. It plays an important biomechanical and metabolic role in knee joint, reducing the impact of forces generated by loading and producing cytokines. Changes in its size can induce modifications in the knee homeostasis. However, a great variability exists regarding its measurements. This work aims to evaluate the reliability of a measurement method of Hoffa’s fat pad dimensions through MRI. Methods 3T sagittal IW 2D TSE fat-suppressed MRI sequences, taken from the OAI (Osteoarthritis initiative) database, of 191 male and female patients, aged between 40…
Vibrational Spectrum of HXeSH revisited : Combined computational and experimental study
2020
Vibrational spectrum of HXeSH embedded in low-temperature matrix is experimentally studied. To support the spectrum interpretation, anharmonic vibrational analysis is performed using different models and basis sets and the data is compared with previous experimental and theoretical analyses. Computations of overtones and combination modes allowed for new band assignments. The HXeSH molecule exhibits high anharmonicity similarly as other molecules from the noble-gas hydride family. Comparison of the employed computational methods shows once again that the modelling of the noble-gas compounds faces theoretical challenges to yield quantitatively reliable results. peerReviewed
Terrorismo, proporcionalidad, seguridad y derechos fundamentales
2020
En los últimos 20 años los tribunales internacionales de protección de los derechos humanos (CIDH y TEDH) han elaborado una doctrina según la cual de estos derechos emanan obligaciones positivas para el Estado, que debe protegerlos eficazmente frente a agresiones de terceros, incluyendo la tutela a través del Derecho penal. Al mismo tiempo, en el ámbito de la lucha contra el terrorismo los Estados vienen adoptando a partir del 11/09/2001 medidas penales que limitan drásticamente los derechos fundamentales en aras de garantizar seguridad a los ciudadanos, una seguridad que cada vez más tiende a concebirse como un derecho, y en la que las fronteras antes nítidas entre seguridad interior y ext…
A post-exercise infrared sauna session improves recovery of neuromuscular performance and muscle soreness after resistance exercise training
2023
The aim of this study was to investigate effects of a single infrared sauna (IRS) session on postexercise recovery of neuromuscular performance, autonomic nervous system function, subjective sleep quality, and muscle soreness. Male basketball players (n = 16) performed two trials consisting of a complex resistance exercise protocol (maximal strength with plyometrics), followed by either 20 min passive recovery (PAS) or IRS (temperature 43±5°C), in a randomized crossover design, with trials separated by one week. Recovery of neuromuscular performance was assessed using 20 m maximal sprint, maximal countermovement-jump (CMJ), and isometric leg press tests, performed 14 hours after exercise. H…
Electronic and vibrational spectroscopic studies of gold-nanoclusters
2016
Gold nanoclusters are a peculiar new material with properties between that of bulk metal and single atoms. They show size-dependent evolution of optical and electronic properties sensitive to the change of single atom or single electron in the system. Understanding the relationship between structure and properties is important to both fundamental scientific question of the role of the quantum size effects in small metal-clusters, and to application of nanoclusters in e.g. photonics, nanoelectronics, and heterogeneous catalysis. In this thesis four spectroscopic studies of monolayer-protected gold-nanoclusters are presented. The optical gap of the Au144(PET)60 and (Au/Ag)144(PET)60 (PET: pheny…
Photodynamics studies of ligand-protected gold nanoclusters by using ultrafast transient infrared spectroscopy
2015
Highly monodisperse samples of three ligand-protected gold nanoclusters Au102(pMBA)44, Au144(SC2H4Ph)60, and a cluster tentatively identified as Au130(pMBA)50, were characterized by UV/vis and infrared spectroscopy, and their photodynamics was studied by transient absorption spectroscopy. The dynamics study for each cluster was performed by electronically exciting the cluster with a pump pulse in the visible or near infrared region and by monitoring the transient absorption of vibrational modes of the ligands with a mid-IR probe pulse. The photodynamics studies were used to determine the molecular or metallic behavior of the cluster, and also to gain important size dependent information abo…
Infrapunapussin vaikutus urheilijan palautumiseen yösykeanalyysien perusteella
2012
Johdanto. Palautuminen kovasta harjoittelusta ja erityisesti palautumisen tehostaminen on tärkeässä osassa huippu-urheilua. Infrapunasäteily on yksi uusimmista keinoista palautumisen tehostamisessa. Infrapunasäteilyn lämpövaikutukset ulottuvat syvemmälle lihaksiin verrattuna muihin lämpöterapiamuotoihin. (Beever 2009.) Tutkimuksen tarkoituksena oli selvittää infrapunapussin (FIR 65° Energy Blanket) käytön hyötyjä urheilijoiden palautumisen edistämisessä yösykeanalyysien perusteella. Menetelmät. Koehenkilöinä (n=8) oli yleisurheilua, pesäpalloa ja telinevoimistelua harrastavia urheilijoita (ikä 21,1 ± 2,3 vuotta, pituus 178,1 ± 6,6 cm ja paino 76,8 ± 10 kg). Harjoittelu suunniteltiin mukana …