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Mechanical modeling and dynamic mechanical analysis were associated to investigate the viscoelastic properties of an alkyd acrylic hybrid system in connection with its morphology, which was characterized by transmission electron microscopy. Theoretical predictions based on the interlayer model used in direct mode were successfully combined with the experimental viscoelastic data to lead to relevan
We present results of Monte Carlo computer simulations of a coarse-grained hydrophobic-polar G (o) over bar -like heteropolymer model and discuss thermodynamic properties and kinetics of an exemplified heteropolymer, exhibiting two-state folding behavior. It turns out that general, characteristic folding features of realistic proteins with a single free-energy barrier can also be observed in this
We present measurements of collisional broadening coefficients, obtained at atmospheric pressure, by polarization spectroscopy. Using tunable single mode laser radiation at similar to 2 pro, high-resolution infrared polarization spectra were recorded for CO2-Ar and CO2-He binary mixtures. The recorded polarization spectra were fitted with a Lorentzian cubed function form to obtain the broadening c
The rheological properties of wormlike micellar solutions formed by the pseudo-ternary system sodium dodecyl sulfate (SDS)-Al(NO3)(3)-H2O have been studied at a fixed molar ratio Al(NO3)(3):SDS = 5.92:1 as a function of surfactant concentration. The linear data show that solutions behave as a Maxwell fluid and there are two well-defined domains characterized by scaling laws for surfactant concentr
The paper argues that policy-oriented educational research, specifically large-scale quantitative research, has produced a new kind of knowledge, which is herein termed third order knowledge. This expect knowledge distinquishes itself from tacit knowledge, everyday knowledge and social science knowledge through its purposes and sources. Third order knowledge is defined as knowledge of and for expe
Most studies of the relation between psychological performance in the elderly and deficiencies of cobalamin and folate have used methods that determine the blood concentrations of these vitamins, which might not reflect the vitamin status in the tissues. Recently, two new markers, plasma homocysteine and methylmalonic acid, have attracted growing interest since they are considered to reflect the s
Phospholipids are an important constituent of the cell plasma membrane and are also present in most common dietary products, being particularly abundant in milk, egg, meat and beans. Phospholipids are hydrolysed by different phospholipases to generate multiple breakdown products that affect the fate of the cells. Most phospholipids such as phosphatidylcholine, lysophosphatidylcholine, phosphatidyl
This paper examines the admissibility of monetary aggregate groupings for the US over 1993-2001, based upon weak separability. We investigate the impact of retail and commercial demand deposit sweep programs on the separability of monetary asset groupings. Weak separability is tested Using the Swofford-Whitney and Fleissig-Whitney tests. We use Varian's measurement error adjustment procedure to el
Background: The activation peptide released from procarboxypeptidase B, CAPAP, is a marker of the activation of pancreatic enzymes in acute pancreatitis while anionic trypsinogen (AT) levels in urine relate to leakage of unactivated proenzymes. Data on these markers in patients suffering from severe acute abdominal disorders of nonpancreatic origin are lacking. Purpose: To examine levels of CAPAP
The effect of Bifidobacterium lactis (Bb-12) and Lactobacillus salivarius (UCC500) on the formation of carboxylic acids (CAs) was studied in the hindgut of rats fed pectin, inulin of low solubility, and lactitol. When the pectin diet was supplemented with Bb-12, the formation of CAs was larger throughout the colon of rats, due to increased formation of acetic acid (P < 0.01) and, in the distal par
The influence of aerosols, both natural and anthropogenic, remains a major area of uncertainty when predicting the properties and behaviour of clouds and their influence on climate. In an attempt to better understand warm cloud formation in a tropical marine environment, a period of intensive measurements took place in December 2004 in Puerto Rico, using some of the latest developments in online i
Objectives We have previously reported an increased cardiac workload in newborn preterm small (SGA) infants, but not in infants appropriate for gestational age (AGA). We hypothesized that these cardiovascular changes win persist at follow-tip at 5 years of age. Study design We assessed blood pressure, echocardiography, and shin perfusion with laser Doppler flowmetry in 22 SGA (S21 +/- 248 g. 28.5
Maternal effects have become an important field of study in evolutionary ecology and there is an ongoing debate regarding their adaptive significance. Some maternal effects can act to increase offspring fitness and are called 'adaptive maternal effects'. However, other maternal effects decrease offspring fitness and there is confusion regarding whether certain maternal effects are indeed adaptive
A study of the influence of spin-orbit coupling and dynamical electron correlation on the polarizabilities of the halogen atoms in a variational treatment is presented. It is shown that for the heavier homologs it is necessary to replace the averaged values by individual component polarizabilities for the J=3/2 and J=1/2 atomic states due to the large spin-orbit coupling. A high level of correlati
Tardigrades have achieved a widespread reputation for an ability to survive more than a century in an inactive, ametabolic state called cryptobiosis, However, a closer look at the empirical evidence provides little support for the claim that tardigrades are capable of century-long survival. Instead, current evidence suggests that a decade may more realistically represent the upper limit of cryptob
Eight healthy volunteers were exposed to purified lipopolysaccharide (LPS) by controlled inhalation. Bronchoalveolar lavage (BAL) 3 hours after exposure revealed a pronounced neutrophilia, increase in lymphocytes, fibronectin concentration, and decrease in alveolar macrophage phagocytosis, as compared to a reference BAL.
