Vols. 1-49 are Proceedings of the 1st-57th annual meetings.

Vols. 1-49 are Proceedings of the 1st-57th annual meetings.

"This compilation will provide ready reference for potential toxicity of chemicals found in the workplace, and should be useful to occupational health physicians, industrial hygienists, toxicologists, and researchers." Alphabetical arrangement by substances. Entries include such details as molecular weight, Wiswesser Line Notation, synonyms, and reference from which data about toxicity derived. Miscellaneous appendixes, including one titled Aquatic toxicity. Bibliographic references.

This lavishly illustrated book examines the distribution, ecology, conservation status, and biogeography of 176 species of dragonflies in the southern plains of the United States, where twelve ecoregions converge. The topics discussed, such as phenotypic variation and ecology, are applicable and of interest across the United States and much of north America, and will appeal to researchers and dragonfly enthusiasts alike. A series of maps, including a distributional map by specific locality of occurrence, indicate level of documentation and allow the reader to visualize the biogeographical associations of a given species. These maps also encourage citizen scientists to contribute documentation wherever they spend time in the field. Context-driven chapters, including one on the region’s rich paleontological history, blend environmental history and biogeography, giving the book a fresh perspective on the natural world while providing a rich summary of the odonates. Dragonflies at a Biographical Crossroads: The Odonata of Oklahoma and Complexities Beyond Its Borders will be sought out by dragonfly researchers and enthusiasts, entomologists, amateur naturalists, paleontologists, conservation biologists, educators, regional historians, and those seeking to meld the disciplines of cultural and environmental history with biology. It will also be readily accessible to the lay public. Dragonflies combine the visually stunning with acrobatic fireworks in ways no other insect can hope to combine.

The most thorough, updated guide to frogs and toads in the United States and Canada available. A stunning diversity of frog species can be found from coastal swamps to lofty mountain peaks, and from the Florida Keys to the Arctic Ocean. They live in subtropical lowlands, grassland prairies, deserts, and alpine-tundra habitats. Some species have restricted habitat requirements, whereas others occur contiguously from the arid plains or humid southeastern forests to the high tundra. In this new edition of Frogs of the United States and Canada, C. Kenneth Dodd Jr. tours the reader through the marvelous world of North American frogs. Covering 114 native and introduced species from all US states and Canadian provinces, this comprehensive reference on the biology, behavior, and conservation of the Order Anura includes detailed and updated information on • past and present distribution • life history and demography • reproduction and diet • landscape ecology and evolution • diseases, parasites, and threats from toxic substances • conservation and management Hundreds of occurrence maps, line drawings, and new color photographs of frogs and their habitats enhance the text. The most thorough treatment of the life histories, distribution, and status of North American frogs ever produced, Frogs of the United States and Canada has been the go-to reference for naturalists, scientists, and resource managers in their efforts to understand and conserve frogs, their habitats, and biodiversity for over a decade. Based on a meticulously updated examination of more than 8,000 references current through 2021, this second edition ensures Dodd's master work will remain an unparalleled resource for years to come.

Explore the issues that are changing user/librarian interactions in today’s evolving electronic libraries This book examines the rapid advances in technology and scientific discovery that have changed the way sci/tech library users seek informationchanges which have also necessitated increasingly high levels of skill in information technology and advanced subject knowledge from librarians. From negotiating the intricacies of working with e-journals to simplifying the data collection process, anyone involved in allocating library resources or prioritizing research agendas will find relevant, useful information here, as will those involved in library education. Emerging Issues in the Electronic Environment: Challenges for Librarians and Researchers in the Sciences begins with Scientific Communication: New Roles and New Players, a detailed examination of the evolution of the information-seeking behavior of scientists, from the days of print-based resources to today’s electronic media. Next, you’ll find techniques designed to maximize the ability of scientists to make lucky connections in their electronic search for information in Too Important to be Left to Chance: Serendipity and the Digital Library. Four chapters in Emerging Issues in the Electronic Environment bring you up-to-date information on various aspects of working with e-journals: For Better or Worse: The Joys and Woes of E-Journals, investigates the impact of electronic-only journal holdings on collection development decisions and the accompanying issues of archiving, economics, content, and research use Scan It and They Will Come . . . But Will They Cite It? provides citation data on the usefulness and impact of retrospective digitization projects for journal contents The Use of Online Supplementary Material in High-Impact Scientific Journals raises vital questions as to whether the print or electronic article should be regarded as the primary archival resource Challenges and Opportunities for Bibliometrics in the Electronic Environment: The Case of the Proceedings of the Oklahoma Academy of Science investigates how issues of access, copyright, and fair use, as well as differences among online file formats may impact bibliometric analysis Two chapters in Emerging Issues in the Electronic Environment are designed to help simplify the data collection process. Information Overload: Keeping Current Without Being Overwhelmed will show you how to identify needed sources by using current awareness services and e-mail filtering technologies The Impact of Electronic Bibliographic Databases and Electronic Journal Articles on the Scholar’s Information Seeking Behavior and Personal Collection of Reprints reviews organizational methods for managing large collections of electronic articles. In addition, this forward-thinking book contains four chapters that point out possible avenues for increased librarian-facilitated service to users: Biology Databases for the New Life Sciences discusses the new sequence, microarray, and protein structure databases, the emergence of bioinformatics, and the opportunities available to librarians in this developing area Map and Spatial Data Acquisitions in the Electronic Age shows how the traditionally complicated and time-consuming process of acquiring cartographic information can be simplified by efficient use of the Internet Webinar Technology: Applications in Libraries reviews the operation, application, and features of Webinars and compares this technology with Web tutorials, virtual reference, and courseware management systems, videoconferencing, and Webcasting Preserving Digital Librari