Search results for "HEE"
showing 10 items of 1797 documents
In vivo and in vitro degradation of a novel bioactive guided tissue regeneration membrane
2006
The aim of this study was to assess degradation of a novel bioactive guided tissue regeneration (GTR) membrane and to quantify the concurrent tissue responses. Pieces of membrane composed of poly-l-lactide, poly-d,l-lactide, trimethylenecarbonate and polyglycolide were dipped into an N-methyl-2-pyrroline (NMP) solution and implanted in the mandibles of 10 sheep. The animals were sacrificed at 6-104 weeks. Parallel in vitro degradation was analysed by measuring the inherent viscosity, water absorption and remaining mass. One of the 2 in vitro sets of membranes was prehandled with NMP. At 6-26 weeks in vivo, the gradually more degraded implants were surrounded by a fibrous network. At 52 and …
Classification of Pecorino cheeses produced in Italy according to their ripening time and manufacturing technique using Fourier transform infrared sp…
2010
Fourier-transform infrared spectroscopy, followed by linear discriminant analysis of the spectral data, was used to classify Italian Pecorino cheeses according to their ripening time and manufacturing technique. The Fourier transform infrared spectra of the cheeses were divided into 18 regions and the normalized absorbance peak areas within these regions were used as predictors. Linear discriminant analysis models were constructed to classify Pecorino cheeses according to different ripening stages (hard and semi-hard) or according to their manufacturing technique (fossa and nonfossa cheeses). An excellent resolution was achieved according to both ripening time and manufacturing technique. A…
Mathematical model for the adsorption-induced nonlocal frequency shift in adatoms-nanobeam system
2017
Abstract This paper models and investigates the resonance frequency shift induced by the adsorption phenomena for an adatoms-nanobeam system including the small scale effect as well as rotary inertia and shear distortion effects. The Lennard-Jones (6–12) type potential is used to determine the adsorption-induced energy owing van der Waals (vdW) interaction mechanism between adatom-adatom and adatom-substrate. The small scale effect is introduced by using Eringen's nonlocal elasticity theory while the explicit expressions of inertia moment and shear force are derived from the standard Timoshenko beam equations in which the residual stress effect is accounted as an additive axial load. Numeri…
Musiikkiterapia keskosvauvan ja -perheen tukena : toimintatutkimus musiikkiterapiasta vastasyntyneiden teho- ja tarkkailuosastolla
2012
Tämän laadullisen toimintatutkimuksen tarkoituksena oli selvittää musiikkiterapian mahdollisuuksia keskosten hoidossa suomalaisessa sairaalassa. Tavoitteena oli löytää osaston arkeen sopivia musiikkiterapeuttisia interventioita ja pohtia, miten musiikkiterapia soveltuisi suomalaiseen sairaalaympäristöön sekä kyseiselle osastolle. Tutkimus pyrki vastaamaan kysymyksiin, miten ja millä menetelmillä keskosten musiikkiterapiaa voisi soveltaa keskostenosastolla. Tavoitteena oli myös kartoittaa, mitä musiikkiterapian menetelmiä osaston henkilökunta voisi käyttää työnsä ohessa ja vanhemmat vauvansa kanssa vuorovaikutuksen tukena. Tutkimus toteutettiin kesän 2011 aikana kahdessa eri jaksossa vastasy…
Validation of a method to measure total spontaneous physical activity of sedentary and voluntary running mice
2014
Running wheels are commonly used to stimulate physical activity of mice. To control the effects of physical activity on study results, it is important to measure the total activity (all movements) of both sedentary and running wheel stimulated mice.Because there was a lack of a validated system, we built a force-plate based system specifically for this purpose. The validity of the system and its variables (activity index, activity time and distance) were tested in calibration measurements and in situ by measuring the activity of eight mice both with and without running wheels. Four mice served as sedentary controls. Activity index adds changes in vertical reaction forces induced by moving m…
Methylthioacetaldehyde, a possible intermediate metabolite for the production of volatile sulphur compounds from L-methionine by Lactococcus lactis
2004
Volatile sulphur compounds (VSCs) production from L-methionine was studied in Lactococcus lactis. In vitro studies with radiolabelled L-methionine and resting cells of L. lactis revealed that L-methionine was initially converted to alpha-keto-gamma-methylthiobutyrate (KMBA) by a transamination reaction. A part of KMBA was subsequently chemically converted to methylthioacetaldehyde, methanethiol and dimethylsulphides. Chemical conversion of KMBA to methylthioacetaldehyde was dependent on pH, Mn(II) and oxygen. Since methanethiol and dimethylsulphide production was highly related to that of methylthioacetaldehyde, the latter compound was proposed as being an intermediate in VSCs production by…
2021
Physical activity is considered a promising preventive intervention to reduce the risk of developing Alzheimer’s disease (AD). However, the positive effect of therapeutic administration of physical activity has not been proven conclusively yet, likely due to confounding factors such as varying activity regimens and life or disease stages. To examine the impact of different routines of physical activity in the early disease stages, we subjected young 5xFAD and wild-type mice to 1-day (acute) and 30-day (chronic) voluntary wheel running and compared them with age-matched sedentary controls. We observed a significant increase in brain lactate levels in acutely trained 5xFAD mice relative to al…
The Wapshot Chronicle, John Cheever (1957)
2021
This essay analyzes John Cheever's's novel "The Wapshot Chronicle" (1957) its critical reception from presentation to the present day,the historical context of its production and reception and its enduring significance.
Genetic Variants Associated With Human Eye Size Are Distinct From Those Conferring Susceptibility to Myopia
2021
Purpose: Emmetropization requires coordinated scaling of the major ocular components, corneal curvature and axial length. This coordination is achieved in part through a shared set of genetic variants that regulate eye size. Poorly coordinated scaling of corneal curvature and axial length results in refractive error. We tested the hypothesis that genetic variants regulating eye size in emmetropic eyes are distinct from those conferring susceptibility to refractive error. Methods: A genome-wide association study (GWAS) for corneal curvature in 22,180 adult emmetropic individuals was performed as a proxy for a GWAS for eye size. A polygenic score created using lead GWAS variants was tested fo…
«Al aire» del to barroc
2018
Resum: El paisatge bucòlic es va convertir en una espècie de partitura i de joc metalíric en els tons barrocs de tal manera que sembla com si els intèrprets i les veus que els canten només tinguessin que seguir les indicacions que els tòpics poètics dicten des del text per a que la sonoritat, l’harmonia i la música fossin possibles. Resulta molt curiós també que, tan tardanament, fos a propòsit de l’amor bucolicopastoral el pretext amb què l’incipient art del to es mostrés més experimental. Només aquest motiu musical podria justificar, que, a principis del segle XVII, proliferessin les composicions de tons de temàtica bucòlica i d’aquells altres que estan centrats en una Natura, si bé no id…