One of the challenges in process control is prov id ing reliable control of poor ly understood systems. Before such a system can be cont ro l led we must f i rst be able to predict its future behavior-so that we know what control action is necessary. Th is paper presents two approaches to this predict ion task, both using qual i tat ive models augmented by records of histor ical system behavior...

BACKGROUND Administrative databases provide efficient methods to estimate influenza vaccine effectiveness (IVE) against severe outcomes in the elderly but are prone to intractable bias. This study returns to one of the linked population databases by which IVE against hospitalization and death in the elderly was first assessed. We explore IVE across six more recent influenza seasons, including p...

Con el objetivo de evaluar la calidad morfológica plántulas moringa producidas en sustratos compuestos por suelo textura areno francosa y estiércol seco tamizado bovino, ovino, porcino, equino, cunícola, pollinaza gallinaza, mezclados proporción 2:1 (v/v), respectivamente, previamente caracterizados física químicamente; se condujo un experimento casa cultivo, diseño bloques al azar con siete tr...

Elec t rochemical responses f rom the reduct ion of Ru m (edta) coordinated to films of high molecular weight poly (4 -v iny lpyr id ine ) on pyro ly t ic g raphi te e lectrodes were s tudied as functions of film thickness, t empera tu re , suppor t ing e lec t ro ly te composition, and solvent. Responses at f i lmed electrodes f rom meta l complexes tha t do not coordinate to the films were al...

Where the ro le o f so f twarein tens ive sys tems has sh i f ted f rom the t rad i t iona l one o f fu l f i l l ing i so lated computat iona l t a sks , l a rger co l l aborat ive soc ie t ie s wi th interac t ion as pr imary resource, i s g radua l ly t ak ing i t s p lace. Thi s can be obser ved in anyth ing f rom log i s t i cs to rescue operat ions and resource management , numerous ser v...

Tool support for the Java Modeling Language (JML) is a very pressing problem. A main issue with current tools is their architecture: the cost of keeping up with the evolution of Java is prohibitively high: e.g., Java 5 has yet to be fully supported. This paper presents JML4, our proposal for an Integrated Verification Environment (IVE) for JML that builds upon Eclipse’s support for Java, enhanc...

This ar t ic le i s an in troduct ion to the computevsoffwave used by the Potential Relative Increment (PRI) approach to opt imal tree diameter growth modeling. These DOSpvograms extract quali f ied tree andplot data,from the Eastwide Forest Inventory Data Base (EFIDB), calculate relat ive tree increment , sort for the highest relat ive iucrements by diameter class, and generate an ASCIIjile fo...