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Concanavalin A (Con A) was spontaneously adsorbed on polymyxin B surface. This peptide-lectin interaction was strong, K-D = 1-9 X 10(-10), based predominantly on creation of hydrophobic bonds, and was completely reversible. Concanavalin A on polymyxin B (PmB) retained higher binding capacity for yeast mannan, compared with covalently immobilized lectin. Kinetics of mannan-concanavalin A interactio
Avian sex determination is chromosomal; however, the underlying mechanisms are not yet understood. There is no conclusive evidence for either of two proposed mechanisms: a dominant genetic switch or a dosage mechanism. No dominant sex-determining gene on the female-specific W chromosome has been found. Birds lack inactivation of one of the Z chromosomes in males, but seem to compensate for a doubl
The Bremmer series is used to reduce a complex scattering problem to a sequence of simpler single-scattering problems. In the Bremmer series, the wave equation is first decomposed into a coupled system of one-way wave equations. The system is then decoupled into a sequence of one-way wave equations with a fixed-point iteration. In this paper, a left-symbol representation of the decomposition opera
A comparison is made between the development trends experience over the last decades by the steel and papermaking industries, respectively. These two industrial branches, although totally different in their technical nature, are subject to similar pressures from their external environment, notably increasing requirements for environmental protection and more efficient raw material management. Such
A new twin heat conduction microcalorimeter for the study of vapour sorption isotherms, sorption enthalpies and the kinetics of sorption has been developed. Each calorimeter has two calorimetric vessels which are connected by a steel tube. The upper vessel (a vaporization chamber) is charged with a vapour forming liquid and the lower vessel (a sorption chamber) contains the sorbent sample. An iden
The authors combine principles from software inspection, use cases, and operational profile testing to create the usage-based reading technique, in which the user reads a design document guided by prioritized use cases. UBR takes the user's viewpoint on software and the faults it might contain. Evaluation showed that the method is more effective and efficient in finding faults that are critical to
This report presents a survey of current simulation tools in the area of integrated control and real-time systems design. Each tool is presented with a quick overview followed by a more detailed section describing comparative aspects of the tool. These aspects describe the context and purpose of the tool (scenarios, development stages, activities, and qualities/constraints being addressed) and the
That data from polar orbiting satellites have detected a widespread increase in photosynthetic activity over the last 20 years in the grasslands of the Sahel is justifies investigating its role in the tropical carbon cycle. But this task is undermined because ground data that are generally used to support the use of primary production models elsewhere are lacking. In this paper, we profile a Light
Solitary-wave solutions of a nonlinearly dispersive equation are considered. It is found that solitary waves are peaked or smooth waves, depending on the wave speed. The stability of the smooth solitary waves also depends on the wave speed. Orbital stability is proved for some wave speeds, while instability is proved for others.
Limit distributions for the greatest convex minorant and its derivative are considered for a general class of stochastic processes including partial sum processes and empirical processes, for independent, weakly dependent and long range dependent data. The results are applied to isotonic regression, isotonic regression after kernel smoothing, estimation of convex regression functions, and estimati
Popular Abstract in Swedish Miljöhänsyn vid produktutveckling hanteras alltmer inom ramen för arbetet i certifierbara miljöledningssystem exempelvis enligt den internationella standarden ISO 14001. Detta innebär att industrin i allt högre grad sätter mål och delegerar ansvar för en kontinuerlig förbättring av produkters miljöprestanda inom ramen för speciella miljöledningsprogram för produktutveckEnvironmental considerations in product development are increasingly dealt with in the framework of certified environmental management systems such as ISO 14001. This allows industry to set objectives and assign responsibility for continuous improvement for DFE activities and environmental performance of products in DFE management programs. This thesis presents a general model for DFE management p
The modelling of premixed turbulent combustion has been studied. Premixed turbulent combustion occurs in a range of applications, such as gas turbines and spark-ignition engines. It is important that the modelling can capture the most relevant details of the combustion in order to minimize the emissions and secure the operability already in the design process of these devices. As the simulation of
Dissociated sensory neurons were cultured on epitaxial gallium phosphide (GaP) nanowires grown vertically from a gallium phosphide surface. Substrates covered by 2.5 mu m long, 50 nm wide nanowires supported cell adhesion and axonal outgrowth. Cell survival was better on nanowire substrates than on planar control substrates. The cells interacted closely with the nanostructures, and cells penetrate
