Summer staging areas of non-breeding Short-toed Snake Eagles Circaetus gallicus

Immature Short-toed Snake Eagles hatched in Spain leave their Sahelian wintering grounds to spend the summer in northern Africa.Funding was provided by Diputación Provincial de Alicante and by Fundación Migres through a collaboration project with the Asociación Eólica de Tarifa

The anatomy and physiology of the optic nerve: historical notes.

Abstract The authors outline the historical development of anatomical and physiological acquisitions on the optic nerve. From the first descriptions of Alcmaeone of Crotone (6th century B.C.) through the Aristotelean school, we arrive at the systemization of Claudius Galen. After the medioeval parenthesis, it fell to Vesalius to give a new impulse to anatomical research. Varolio and Eustachi describe the exact point of origin of the optic nerves. Later observations involve both anatomists and physiologists. The question of the transmission of sensory messages is described (Willis, von Haller), as is the microscopic structure of the optic nerve (Zinn, von Leeuwenhoek). After the description of the decussation of the fibers of the optic nerve in the optic chiasma, research into this cranial nerve has an increasingly neurophysiological and neurochemical orientation, continuing until the recent discovery of axoplasmic flow

Kinetic Metallization of Ceramic Armor Tiles

Abstract Ceramic tiles are widely used as ballistic armor due to their ability to absorb high specific impact energy. However, ceramic materials often exhibit very low ductility and have a tendency to exhibit multiple fractures in spider-web patterns around the point of impact. One method used to introduce ductility is to encapsulate the tile in a metal jacket, or to provide a strongly adhered metallic backing plate. Aluminum and titanium metals are of primary interest to decrease the overall weight of the armor material system. The low temperature Kinetic Metallization (KM) process allows direct deposition of the metals onto the ceramic tiles. This is not possible with thermal spray processes due to the extreme mismatch in thermal expansion and adverse metallic-ceramic chemical reactions at high temperatures. Kinetic Metallization has been used to deposit aluminum and titanium coatings onto silicon carbide (SiC) and proprietary ceramic matrix composite (CMC) tiles. Ballistic testing of coated tiles has shown decreased fracturing of the armor material, leading to improved performance for subsequent impacts.</jats:p

Late non-catheter-related venous thrombotic events in lung transplantation recipients

Deep venous thrombosis (DVT) is a common complication in lung transplant recipients (LTRs) and is associated with higher 1-year mortality rates. Even within our population of LTRs, the majority of thrombotic events occur shortly after surgery and are generally related to the use of central venous catheter (CVC) or extracorporeal membrane oxygenation (ECMO). Instead, we hereby present a report focusing on thrombotic events that occurred at least 60 days after surgery and in sites that weren't used for CVC or ECMO application