Skip to main content Accessibility help

We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.

Close cookie message
×
  1. Home
  2. Search

Refine search

Refine search

Access:
Content type:
Publication date:
Apply   From and To filters
Subject: Show more
Journals Show more
Publishers: Show more
Societies Show more
Series: Show more
Collections: Show more

Actions for selected content:

Select all | Deselect all
  • View selected items
  • Export citations
  • Download PDF (zip)
  • Save to Kindle
  • Save to Dropbox
  • Save to Google Drive

Save Search

You can save your searches here and later view and run them again in "My saved searches".

Please provide a title, maximum of 40 characters.
Cancel
×

26 results

Page 1 of 2

  • Expert System Evaluation and Implementation for Soybean (Glycine max) Weed Management

  • C. Dale Monks, David C. Bridges, John W. Woodruff, Tim R. Murphy, Daniel J. Berry
  • Journal: Weed Technology / Volume 9 / Issue 3 / September 1995
  • Published online by Cambridge University Press: 12 June 2017, pp. 535-540

  • HERB, a computer-based expert system for soybean weed management developed at North Carolina State University, was evaluated for managing weeds under Georgia conditions. The project was initiated in two phases: a) training Cooperative Extension county agents followed by evaluation in six Georgia counties and b) revision, licensing, and distribution across the state. Field evaluations indicated that HERB was not highly accurate for predicting final yield loss because of weed species senescence and environmental extremes later in the growing season. HERB generally provided a reasonable prediction for a positive economic return due to treatment approximately 60% of the time. Accuracy was directly dependent upon the accuracy of weed-free yield estimates and extremes in growing conditions. HERB should not be the sole source of weed management information but may be useful to producers and county agents where mixed or low populations of weeds exist. The program was distributed statewide in 1993 after revision, duplication, and training was completed.

  • 37 - Acute pancreatitis

  • from Section 6 - Gastrointestinal emergencies
  • Edited by Kaushal Shah, Jarone Lee, Kamal Medlej, American University of Beirut, Scott D. Weingart
  • Book: Practical Emergency Resuscitation and Critical Care
  • Published online: 05 November 2013
  • Print publication: 24 October 2013, pp 245-252

  • Summary

    This chapter discusses the diagnosis, evaluation and management of acute decompensated heart failure (ADHF). Left-sided heart failure classically presents with dyspnea, usually related to pulmonary vascular congestion. Patients with severe ADHF present with respiratory distress and impending respiratory failure. The associated symptoms may include frothy oral secretions, diaphoresis, and hypoxia. Patients may also have other symptoms related to poor cardiac output and poor perfusion such as chest pain and altered mental status. Patients may be hypertensive or hypotensive depending on the etiology of symptoms and hypotension can be indicative of cardiogenic shock and is particularly concerning. Important elements of history include past history of cardiac dysfunction and potential causes of new cardiac dysfunction. When approaching a patient with ADHF, one must be sure to address any underlying cause while simultaneously managing the physiological derangements. Patients who become hypoxic, lethargic, or more confused despite noninvasive positive-pressure ventilation (NPPV) should be intubated.

  • Appendix A - Units and usages

  • from PART VIII - Appendices
  • Edited by Woodruff T. Sullivan, III, University of Washington, John Baross, University of Washington
  • Book: Planets and Life
  • Published online: 28 May 2018
  • Print publication: 13 September 2007, pp 563-563

  • Summary

    Communication across the many disciplines involved in astrobiology is fraught with difficulty on many levels, including even the seemingly simple matter of units and usage of terms and abbreviations. When first introduced in any chapter, unusual units often not known to those outside the field are defined. In this appendix we give conventions and conversions for various units used throughout the book.

Planets and Life
  • The Emerging Science of Astrobiology
  • Edited by Woodruff T. Sullivan, III, John Baross
  • Published online: 28 May 2018
  • Print publication: 13 September 2007
  • Astrobiology involves the study of the origin and history of life on Earth, planets and moons where life may have arisen, and the search for extraterrestrial life. It combines the sciences of biology, chemistry, palaeontology, geology, planetary physics and astronomy. This textbook brings together world experts in each of these disciplines to provide the most comprehensive coverage of the field currently available. Topics cover the origin and evolution of life on Earth, the geological, physical and chemical conditions in which life might arise and the detection of extraterrestrial life on other planets and moons. The book also covers the history of our ideas on extraterrestrial life and the origin of life, as well as the ethical, philosophical and educational issues raised by astrobiology. Written to be accessible to students from diverse backgrounds, this text will be welcomed by advanced undergraduates and graduates who are taking astrobiology courses.

  • Preface

  • Edited by Woodruff T. Sullivan, III, University of Washington, John Baross, University of Washington
  • Book: Planets and Life
  • Published online: 28 May 2018
  • Print publication: 13 September 2007, pp xix-xxii

  • Summary

    The emerging field of astrobiology encompasses a daunting variety of specialties, from astronomy to microbiology, from biochemistry to geology, from planetary sciences to phylogenetics. This is both exciting and frustrating – exciting because the potential astrobiologist is continually exposed to entirely new ways to look at the world, and frustrating because it is difficult to understand new results when venturing outside the confines of one's own specialty. There are now many excellent popular books on astrobiology, but a scientist wants more details and more sophistication than these afford. Where can an astronomer without any formal biology since high school learn the basics of cellular metabolism? Or the principles of evolution? Or notions about alternative forms of life? And where can a microbiologist with little physics and no astronomy learn the basics of how a planetary atmosphere works? Or how the Earth formed? Or how planets are detected around other stars? This book is designed to fill these needs.

    We have endeavored to cover all the important aspects of astrobiology at an advanced level, yet such that most of the contents in every chapter should be understandable to anyone versed in any relevant science discipline. We envision our youngest readers to be science majors near the end of undergraduate study or the beginning of graduate study. And at the other extreme, we aim to serve scientists who haven't taken an academic course for forty years, but are intrigued by the nascent field of astrobiology.

Page 1 of 2