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There are two ways how the emergence of the Biosphere as a single living being could be understood. One, that it is the latest stage of the evolution of life on Earth that began some 4 billion years ago, from smallest and simplest... more
Plants deploy a finely tuned balance between growth and defence responses for better fitness. Crosstalk between defence signalling hormones such as salicylic acid (SA) and jasmonates (JAs) as well as growth regulators plays a significant... more
We have investigated the developmental transitions of myosin heavy chain (MHC) gene expression in the rat extraocular musculature (EOM) at the mRNA level using Sl-nuclease mapping techniques and at the protein level by polypeptide mapping... more
Store-operated calcium entry (SOCE) is the predominant Ca2+ entry mechanism in nonexcitable cells and controls a variety of physiological and pathological processes. Although significant progress has been made in identifying the... more
During chemotaxis and phototaxis, sperm, algae, marine zooplankton, and other microswimmers move on helical paths or drifting circles by rhythmically bending cell protrusions called motile cilia or flagella. Sperm of marine invertebrates... more
Recently, a novel approach to a highly sensitive and quantitative detection of rare earth element (REE) ions including La3+, Eu3+ and Tb3+, by the polymerase chain reaction (PCR) technique, has been reported. The detection of REE ions is... more
A joint evaluation of all animals, uses all additive genetic relationships uses all data on all animal jointly It works as a linear model (correcting different effects for each other), jointly estimates animal effects and fixed effects... more
The kelch motif was discovered as a sixfold tandem element in the sequence of the Drosophila kelch ORF1 protein. The repeated kelch motifs predict a conserved tertiary structure, a β-propeller. This module appears in many different... more
The Respiratory Syncytial Virus 2003 symposium took place from 8th–11th November 2003 in Stone Mountain, Georgia, and brought together more than 200 international investigators engaged in RSV research. RSV biology, pathogenesis, and... more
Exposure to particulate matter (PM) may alter lung homeostasis inducing changes in fluid balance and host defense. Bioavailability of soluble PM compounds like polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), and... more
During waterlogging conditions plants switch from aerobic respiration to anaerobic fermentation to cope with the lack of available oxygen. Plants have two main fermentation pathways: ethanol and lactic acid fermentation. In this paper we... more
In the present review we analyse the key features of cells, seen fundamentally as information processing machines. Even though the comparison between cells and machines or cells and computers provides a powerful tool for understanding how... more
Poucos contestarão a afirmação de que a agricultura é uma das maiores invenções da humanidade. A criação sistemática de animais, em particular, permite produzir carne, lacticínios e numerosos derivados indispensáveis à nossa... more
In many eukaryotic organisms, gender is determined by a pair of heteromorphic sex chromosomes. Degeneration of the non-recombining Y chromosome is a general facet of sex chromosome evolution. Selective pressure to restore expression... more