In the demand for recreational fishing sites, an important explanatory variable differentiating sites is the unobserved expected catch rate. Since the observed catch rate is subject to sampling variability, using the average of a site’s observed catch rates causes the parameter estimator on catch to be biased downward. We develop and demonstrate a solution to this errors-in-variables problem wh...

Die über den Nachlass jetzt zugänglich gewordenen Korrespondenzen und zusätzlichen Dokumente und Texte vermitteln ungeachtet aller Nachlasslücken ein schärferes Bild der technisch-wissenschaftlichen, politischen und weltanschaulichen Entwicklung Konrad Zuses von den späten 20er bis in die 40er Jahre. Sie lassen deutlicher den Wandel von einem künstlerisch ambitionierten, technisch verspielten, ...

Under increasing tensile load, the lifetime of a single catch bond counterintuitively increases up to a maximum and then decreases exponentially like a slip bond. So far, the characteristics of single catch bond dissociation have been extensively studied. However, it remains unclear how a cluster of catch bonds behaves under tensile load. We perform computational analysis on the following model...

This paper examines the incidence and correlates of linear growth catch up in early childhood among stunted children, using a range of definitions of catch up. Catch-up growth between two and five years of age is defined in both absolute terms (i.e. the centimetre height deficit from the healthy reference population mean is reduced) and relative terms (the height-for-age z-score improved or pas...

BACKGROUND Analysis of US claims data from April 2010 to June 2011 estimated that 39% of the 13-valent pneumococcal conjugate vaccine (PCV13) catch-up eligible cohort would ever receive the catch-up vaccination; a previous analysis assumed 87%. METHODS This updated figure was applied to a previously published 10-year Markov model while holding all other inputs constant. RESULTS Our model es...

A unique database was created that describes the methods used to allocate shares in nearly every major catch share fishery in the world. Approximately 54% of the major catch share fisheries in the world allocated the Total Allowable Catch (TAC) solely on the basis of historical catch records, 3% used auctions, and 6% used equal sharing rules. The remaining 37% used a combination of methods, inc...

There are differences in perception of the status of fisheries around the world that may partly stem from how data on trends in catches over time have been used. On the basis of catch trends, it has been suggested that about 70% of all stocks are overexploited due to unsustainable harvesting and 30% of all stocks have collapsed to <10% of unfished levels. Catch trends also suggest that over tim...

population and density estimate of black rat in mangrove forests was conducted by two independent procedures, including seber-jolly and catch-effort methods. a selected trapping area with 15 hectares was studied. first, 60 cage traps for seber-jolly and then 80 cage traps for catch-effort method installed in the trapping area. we used color earrings and numerical rings for marking the captured ...