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The definitive resource for finding, identifying, and conserving Maryland’s amphibians and reptiles. Naturalists, herpetologists, and ecologists alike agree that tracking herpetofauna is a challenging undertaking. Scientists are concerned about the decline of once-familiar species, but evidence has often been too anecdotal to support firm conclusions. To better understand the distribution of amphibians and reptiles in Maryland and forecast species' futures in a time of accelerated environmental threats, conducting a comprehensive statewide survey updating 1970s-era distribution maps seemed ideal. However, this endeavor was of an impossibly ambitious scope for scientists alone to tackle. En...
Guide to stretching exercises that can be done at home, in the car, at work, or nearly anywhere.
Rules of organization & procedure, rules of eligibility, agreements for men's and women's programs.
Strategies for building large systems that can be easily adapted for new situations with only minor programming modifications. Time pressures encourage programmers to write code that works well for a narrow purpose, with no room to grow. But the best systems are evolvable; they can be adapted for new situations by adding code, rather than changing the existing code. The authors describe techniques they have found effective--over their combined 100-plus years of programming experience--that will help programmers avoid programming themselves into corners. The authors explore ways to enhance flexibility by: Organizing systems using combinators to compose mix-and-match parts, ranging from small functions to whole arithmetics, with standardized interfaces Augmenting data with independent annotation layers, such as units of measurement or provenance Combining independent pieces of partial information using unification or propagation Separating control structure from problem domain with domain models, rule systems and pattern matching, propagation, and dependency-directed backtracking Extending the programming language, using dynamically extensible evaluators
Adam Taliaferro had it all: smarts, an easy-going personality, and incomparable athletic ability. None of that seemed to matter, however, on that fateful September day when his father was given startling news: Do not expect your son to walk. Ever. Since that numbing day, Taliaferro, the Penn State freshman cornerback who was paralyzed after he tackled an Ohio State running back, has defied the odds. Before he had spinal-fusion surgery, he made a vow to his mother: "Mom, I'm not going out like this." Three months later, he walked out of a Philadelphia hospital on crutches, determined to complete his amazing recovery, making the name "Adam Taliaferro" synonymous with courage and perseverance.