Search results for "SHO"

Heat shock proteins in embryonic and adult submandibular salivary glands in healthy and tumorigenic tissues

2020

Study of percolation and clustering in supercritical water-CO2 mixtures

2008

The microscopic structure of supercritical water-CO(2) mixture is investigated by neutron diffraction experiments exploiting the isotopic HD substitution. The investigated water reach mixtures are in the liquidlike region of the phase diagram, according to the behavior of the radial distribution functions, yet a reduction of the average number of hydrogen bonds, compared to equivalent states of pure water, is found. As a consequence, the average dimension of water clusters is reduced and the system stays below the percolation threshold. These results, along with the shift of the main peaks of the site-site radial distribution functions, suggest that the excess volume in these supercritical …

Does short-term odour memory increase with expertise? An experimental study with perfumers, flavourists, trained panellists and novices

2011

We have examined short-term memory performance for odour recognition as a function of expertise. Experts (perfumers and flavourists), trained panellists, and novices studied three sets of common and uncommon (perfumery and flavour raw materials) odours with intentional encoding instructions. The three sets included three, six and 12 odours, respectively. As expected, recognition performance indicated an expertise effect: hit rates increased with expertise, whereas false alarm rates decreased. This effect, however, is mediated by the type and number of odours. For common odours, the effect of expertise is significant only for the larger odour set. For uncommon odours, the effect of expertise…

Effect of weathering on physical properties of clearcoats

1999

Aim of the investigations was to explore the weatherability performance of selected polymer films. The results were correlated with each other, so that measurable changes can be attributed to chemical and/or physical effects. Therefore, polyols with different aromatic content were produced. The resins were crosslinked with melamine-formaldehyde resin (1K system) and polyisocyanurate (2K system), respectively. The analyses resulted after each 100 h accelerated weathering in a period of total 1000 h. Chemical degradation processes were analysed by means of FT-IR spectroscopy. For the physical investigations were used: dynamic mechanical analysis (DMA), differential scanning calorimetry (DSC),…

Dynamics of ground and excited state chlorophylla molecules in pyridine solution probed by femtosecond transient absorption spectroscopy

1999

Abstract Femtosecond pump–probe spectroscopy was used to investigate the ground and excited state dynamics of chlorophyll  a (Chl  a ) in pyridine following excitation by a 100 fs optical pulse. The transient absorption spectrum and kinetics reveal spectral evolution on two ultrafast time scales: ∼100 fs and ∼3 ps. We attribute these dynamics to ground-state transient hole-burning and solvation dynamics. Transient absorption anisotropy at early times (∼500 fs) was measured for Chl  a in pyridine and shows a pronounced wavelength dependence, where anisotropy varies between 0 and 0.5. Strong contribution from excited state absorption is the origin of the variation.

Ultrafast Electronic and Vibrational Energy Relaxation of Fe(acetylacetonate)3 in Solution

2007

Transient mid-infrared spectroscopy is used to probe the dynamics initiated by excitation of ligand-to-metal (400 nm) and metal-to-ligand (345 nm) charge transfer states of FeIII complexed with acetylacetonate (Fe(acac)3, where acac stands for deprotonated anion of acetylacetone) in solution. Transient spectra in the 1500-1600 cm-1 range show two broad absorptions red-shifted from the bleach of the nu(CO) (approximately 1575 cm-1) and nu(C=C) (approximately 1525 cm-1) ground state absorptions. Bleach recovery kinetics has a time constant of 12-19 ps in chloroform and tetrachloroethylene and it decreases by 30-40% in a 10% mixture of methanol in tetrachloroethylene. The transient absorptions…

Bedside chest ultrasound to distinguish heart failure from pneumonia‐related dyspnoea in older COVID‐19 patients

2020

Abstract Aims In the older population, acute heart failure is a frequent, life‐threatening complication of COVID‐19 that requires urgent specific care. We aimed to explore the impact of point‐of‐care chest ultrasound (CUS) use in older bedridden inpatients during the COVID‐19 pandemic as a tool to distinguish between cardiogenic pulmonary oedema and isolated viral pneumonia‐related dyspnoea. Methods and results This prospective series included 16 patients aged 75 or older, hospitalized for acute dyspnoea in an acute geriatric unit of a university hospital and testing positive for a SARS‐Cov2 infection. We collected demographic characteristics, medical history, biological screening, clinical…

Minimization of childhood maltreatment is common and consequential: results from a large, multinational sample using the childhood trauma questionnai…

2016

Childhood maltreatment has diverse, lifelong impact on morbidity and mortality. The Childhood Trauma Questionnaire (CTQ) is one of the most commonly used scales to assess and quantify these experiences and their impact. Curiously, despite very widespread use of the CTQ, scores on its Minimization-Denial (MD) subscale-originally designed to assess a positive response bias-are rarely reported. Hence, little is known about this measure. If response biases are either common or consequential, current practices of ignoring the MD scale deserve revision. Therewith, we designed a study to investigate 3 aspects of minimization, as defined by the CTQ's MD scale: 1) its prevalence; 2) its latent struc…

China Spillovers: New Evidence from Time-Varying Estimates

2017

The recent “rebalancing” of China’s economy has raised concerns that the country’s growth slowdown may have large global implications. This note looks at this issue by analyzing the effects of China’s growth shocks on the output of other countries and how these effects have changed over time. Estimates indicate that the magnitude of China’s spillovers has steadily increased during the last two decades, but remains yet limited. Spillovers are larger in neighboring (Asian) countries and in emerging markets and developing economies. Trade linkages remain main transmission channels. In addition, a negative shock in China has (marginal) positive effects for net commodity importers wh…

The Advent of duanpian xiaoshuo: A Combination of Western Discourse and Chinese Legacy in the Early Definitions of the Modern Short Story

2020

During the late Qing, a thriving transcultural interaction across China and the West determined a burgeoning cultural environment in which new forms of appreciation and critique contributed to the development of a new sense of literary modernity and new ways of conceiving and classifying literature (wen) distant from the “canon”. From the mid of XX century, in Chinese newspapers and magazines literature and leisure reading became a regular section. Shenbao was also one of the first papers which recognized the attractive power of literature and of the so called duanpian xiaoshuo 短篇小說 (Chen 2009, p. 117). In those years, Shenbao introduced new contents and form of reception that were already …