Tree hollows are keystone structures for saproxylic fauna and host numerous endangered species. However, not all tree hollows are equal. Many variables including physical, biotic and chemical ones, can characterise a tree hollow, however, the information that these could provide about the saproxylic diversity they harbour has been poorly explored. We… (More)
Immune systems of live forms have been an abundant source of inspiration to contemporary computer scientists. Problem solving strategies, stemming from known immune system phenomena, have been successfully applied to challenging problems of modern computing. However, research in artificial immune systems has overlooked establishing a coherent model of known… (More)
AIMS To determine the contribution of the striated musculature anatomically related to the urethra on urinary continence in conscious male rats. We tested whether the bilateral neurectomy of the motor branch of the sacral plexus (MBSP), a nerve that innervates the bulbospongiosus, ischiocavernosus, and external urethral sphincter, is a reliable procedure to… (More)
This paper describes a head-tracking solution that we developed using custom-designed hardware and that is suitable even on a small budget. We examine the problems that this kind of design implies, how we solved them, and give alternative solutions that may fit in different kind of applications.
Rabbits (Oryctolagus cuniculus), like many small mammals, have a marked postpartum estrus, and during the breeding season, are often both pregnant and lactating. We examined reproductive performance and allocation of resources by rabbit mothers with overlapping litters under presumably optimal conditions of unrestricted food, standardized litter size, and… (More)
Wireless communications and internet continue to impulse commercial and economic activities. Wireless devices have contributed greatly to this progress by expanding internet access to outdoor and mobile locations. But as wireless access services increase, more complex and more compact wireless devices are required to respond to the demand. In fact, as… (More)