PURPOSE We explore the unique rheological and structural properties of human and bovine meibomian lipids to provide insight into the physical behavior of the human tear-film lipid layer (TFLL). METHODS Bulk rheological properties of pooled meibomian lipids were measured by a commercial stress-controlled rheometer; a home-built interfacial stress rheometer (ISR) probed the interfacial viscoela...

This paper describes the issue of the evaluation of processes designed on the principles of reengineering. Especially business process structures on high-level modelling are subjected that substantially support the company’s successful running. Presented analysis and assessment put emphasis on the structural properties of business processes. For evaluation such tools as comparing of quantitativ...

i. I N T R O D U C T I O N X-ray crystallographic studies of proteins have revealed a rich variety of structural architectures. Despite this diversity, many proteins share common features of structural organization. The extent to which proteins can be described as being structurally similar depends upon their incorporation of regular secondary structures. The observation that many proteins are ...

Preface My interest in graph homomorphisms dates back to the Spring School of Combinatorics in . e School is traditionally organised by the Department of Applied Mathematics of the Charles University in a hilly part of the Czech Republic; in  it was one of the few times when the Spring School was international not only in terms of its participants, but also in terms of its venue. Partic...

We consider binary mixtures of colloidal particles and amphiphilic dendrimers of the second generation by means of Monte Carlo simulations. By using the effective interactions between monomer-resolved dendrimers and colloids, we compare the results of simulations of mixtures stemming from a full monomer-resolved description with the effective two-component description at different densities, c...

Abstract: Generalized linear systems are considered, which contain in their state-space representation matrices with elements functions of bounded variation and controls in the space of regulated functions. The Perron-Stieltjes integral is used to obtain a variation-of-parameters formula. On this basis the formula of the state of the system as well as the input-output map are derived. The funda...

The structural properties of photorespiratory serine:glyoxylate aminotransferases (SGAT, EC 2.6.1.45) from maize (Zea mays L.) and wheat (Triticum aestivum L.) leaves were examined. By means of molecular sieving on Zorbax SE-250 column and filtration through centrifugal filters it was shown that dimers of wheat enzyme (molecular mass of about 90 kDa) dissociate into component monomers (molecula...

Magnetization measurements of Nd2Fe172dGad (d50 – 2) show that the saturation magnetization, M s , decreases with an increase in Ga content from 40.4 mB /f.u. for Nd2Fe17 to 36.1 mB /f.u. for Nd2Fe15Ga2 at 4.2 K. Neutron diffraction data at 25 K show that the magnetic moment of Fe depends on its crystallographic site and decreases in the order Fe(6c).Fe(18f )>Fe(18h) >Fe(9d). The magnetic momen...

The perovskite-based oxide Y0.33Sr0.67CoO2.79 has been magnetically and structurally characterized. The material shows a unit cell of 23234 simple perovskite cubes with space group I4/mmm . This is a different structure to that observed in the much-studied (La,Sr)CoO3 oxides. Oxygen stoichiometry is established through thermogravimetric analysis and correlated with ac and dc magnetic measuremen...