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Plant Calreticulins -Calcium-binding proteins with many functions

Endoplasmic reticulum (ER) plays an important role in protein synthesis, folding, maturation and transport of newly synthesized proteins, as well as the regulation of cellular Ca2+ homeostasis. A protein that is involved in several of these functions in the ER is calreticulin (CRT), which is a Ca2+-binding chaperone that resides in the lumen of the ER. Animal CRT is a multifunctional protein invol

Energy-Based Analysis of Interfering IEEE 802.11b and Bluetooth Networks

The increasing use of wireless technology utilizing unlicensed frequency bands calls for more in-depth analysis of interference and coexistence between systems. In this paper a framework is presented for detailed analysis of the performance of coexisting networks in shared frequency bands. The framework allows for multiple packet lengths to be used by the communicating devices and the analysis is

On the relation between optimal wideband matching and scattering of spherical waves

Using an exact circuit analogy for the scattering of vector spherical waves, it is shown how the problem of determining the optimal scattering bounds for a homogeneous sphere in its high-contrast limit is identical to the closely related, and yet very different problem of finding the broadband tuning limits of the spherical waves. Using integral relations similar to Fano's broadband matching bound

The occurrence of hypothermia in nestlings of the European Storm-petrel Hydrobates pelagicus

Although Procellariiform nestlings develop independent endothermic thermoregulation at an early age, they may not be able to meet the high energetic costs of maintaining a constant high body temperature during prolonged periods of fasting or cold exposure. The ability to reduce body temperature and enter torpor could therefore represent an important survival strategy in the Procellariiformes. It i

Relevance of heat transfer and heat exchangers for development of sustainable energy systems

There are many reasons why heat transfer and heat exchangers play a key role in the development of sustainable energy systems as well as in the reduction of emissions and pollutants. In general, all attempts to achieve processes and thermodynamic cycles with high efficiency, low emissions, low costs include heat transfer and heat exchangers to a large extent. It is known that sustainable energy de