Category: Biology, United States
About the Everglades Digital Library The Everglades Digital Library (EDL) is a service of the Digital Collections Center at Florida International University Libraries in Miami, Florida. The EDL was established in 1996 to support research, education, decision making, and information resource management within the greater Everglades community. Since that time, the project has grown to serve patrons from around the world with Web-accessible digital collections, the online reference service 'Ask An Everglades Librarian', and other online information services.
Rachel Louise Carson, noted biologist and environmentalist who fascinated readers with three books on the wonders of the sea and awakened the American public to the dangers of pesticide misuse with a highly controversial bestseller, was born on May 27, 1907, in Springdale, Pennsylvania. She was interested in writing at an early age and submitted a number of juvenile stories, poems, and essays to leading youth magazines. Rachel Carson's first book, Under the Sea Wind , attracted little notice on its appearance in 1941. However, her second book on the sea, The Sea Around Us (1951), remained on the best-seller lists for eighty-six weeks, was eventually translated into thirty languages, and received many awards.
For most of the material from which the following new
species of Cicadidae are described, I have to thank Mr. F. P.
Dodd (queensland) and Mr. H. Elgner, of the same State.
Amongst them it will be noticed is a new species of Cyclochila
from Queensland, and also a species of Prasia, a genus so far
unrecorded in Australia, though common in New Guinea. I
have had some difficulty in deciding upon the generic deter-
mination of Psaltoda pulchra, as it has strong affinities with
Thopha in the structure of the head and the proportions of the
tegmina and wings. The abdomen, however, is unadorned with
the sacs which hide the tympana in the division Thopharia,
so I have placed the species tentatively in the genus Psaltoda.
The specimens are classified according to biological nomenclature. Thus each unique name traces to an original description, published over the past 250 years. The earliest valid names trace to the seminal works of Linnaeus. The vast majority of names originated with the 19th century exploration of the American West. However, new species continue to be discovered and described today. Any research into the application of biological nomenclature requires an evaluation of the original description. Our ultimate goal is to make available digitized original descriptions of all 4500 plant taxa (species, subspecies and varieties) in the Oregon flora.
Linus Pauling and the Race for DNA: A Documentary History is comprised of three large sub-sections, each of which tells the story of the discovery of the double helix in a different way. Navigation between sub-sections may be achieved either through use of the links provided on the site homepage or through use of the links located in the header of each page within the site. Narrative - The first section - a thirty-four "chapter" Narrative - recounts the saga of the discovery from the largely unknown viewpoint of the major "loser" in the race: the phenomenal American chemist Linus Pauling (1901-1994). There are three components to each page of the Narrative.
History of Medicine In 1816, an Englishwoman still in her teens, Mary Shelley, conceived the story of a scientist obsessed with creating life. Shelley's scientist, Victor Frankenstein, succeeds. But while Frankenstein's creature can think and feel, he is monstrous to the eye. Spurned by all, including Victor Frankenstein himself, the embittered creature turns into a savage killer. In 1818, Shelley's story was published as Frankenstein; or, The Modern Prometheus . This story — both in the original novel and shaped into new forms, such as plays, films, and comics — has captivated people ever since, exposing hidden, sometimes barely conscious fears of science and technology.
History of Medicine INTRODUCTION Tropical medicine began in the nineteenth century when doctors diagnosed infectious diseases in soldiers and colonists who had lived in tropical areas. In 1877, English scientist Sir Patrick Manson proved that mosquitoes spread elephantiasis to humans and he later theorized that the same was true with malaria. This was an enormous step in tropical medicine and the understanding of tropical diseases, leading to advances in prevention methods. The field of tropical medicine consists of the study, treatment, and prevention of tropical diseases. Tropical diseases can be defined as those that are mainly of parasitic origin and are common in tropical or subtropical areas.
History of Medicine Bacterial Genetics: 1946-58 His inquisitiveness, facility for establishing connections between scientific disciplines, and grasp of institutional strategy led Joshua Lederberg to the forefront of successive advances in science: molecular genetics in the 1940s and 1950s; the search for extraterrestrial life in the 1950s and 1960s; computers and artificial intelligence in the 1960s and 1970s. His discoveries in genetics produced a deeper understanding not only of the biochemical mechanism of inheritance and mutation in microorganisms, but of the evolution of diseases, the causes of drug resistance, and the possibilities of genetic engineering and gene therapy.
The History of Medicine Division of the National Library of Medicine has a rich collection of illustrated anatomical atlases dating from the 15th to the 20th century. The Historical Anatomies on the Web Project has been designed to broaden access to this collection by providing high-resolution downloadable scans of selected important images from the atlases. Atlases and images have been chosen for their historical and artistic significance by the project's content coordinator, Michael North. Important images may be omitted if the atlas is damaged or fragile, or if the work is bound in such a way as to impede high quality scanning. A priority has been placed upon scanning the earliest and/or the best edition of a work in Library's possession. The scans generally omit text.
History of Medicine Introduction The National Library of Medicine has recently acquired a large collection of Chinese Public Health materials, about seven thousand items produced from early 20th century to the year of SARS. The collection has a wide range of media presentations: posters, health newsletters, health newspapers, paintings, pharmaceutical advertisements, calendars, children's chess games, jigsaw puzzles on health topics, playing cards on SARS, lantern slides, negatives, photographs, and health award certificates, as well as books and journals. These materials present rich visual representations of public health concerns which were closely tied to the political, social, economic, and even military engagements of China during different time periods.
History of Medicine Canine Heroes and Medals During the Second World War, medical researchers and antivivisectionists drafted animals, primarily dogs, as partisans in the struggle over animal experimentation. With the rise of Cold War, pervasive anticommunism and fears of atomic annihilation moved animals and animal experimentation to center stage, mediating fierce conflicts over medical research and international politics. 22 May 2009
History of Medicine Epidemic cholera is an acute, painful, and often fatal disease which ravaged nearly the entire world during several severe outbreaks over the course of the 19th century. It is a diarrheal disease which can cause death by dehydration to an untreated patient in a matter of hours and is extremely contagious in communities without adequate, modern sanitation, as most of the world was in 1817 when it first left India. News of its spread and impending approach often sent panic into entire nations, and health professionals were largely at a loss as to how to treat or prevent it until modern epidemiological and laboratory techniques were developed later in the century.
History of Medicine Home > From 'Monsters' to Modern Medical Miracles Home > Embryology and Classification of Conjoined Twins Embryology of Conjoined Twins Identical twins develop when a single fertilized egg, also known as a monozygote, splits during the first two weeks of conception. Conjoined twins form when this split occurs after the first two weeks of conception. The monozygote does not fully separate and eventually develops into a conjoined fetus that shares one placenta, one amniotic sac, and one chorionic sac. Because the twins develop from a single egg, they will also be the same sex. The extent of separation and the stage at which it occurs determine the type of conjoined twin, i.e., where and how the twins will be joined.
History of Medicine Rewriting the Book of Nature Charles Darwin and Evolutionary Theory Charles Darwin’s vision—“from so simple a beginning, endless forms most beautiful and most wonderful have been, and are being evolved”—now forms the foundation of the biological sciences. Radical in sweep, Darwin’s idea of naturally innovating and endlessly changing webs of life undercut all previous sciences. Darwin was instantly seen as a potent sign of a new science, a new way of conceiving the world. His theory was an immediate threat not just to those who were wedded to an older conception, but to all who relied on a given and settled order for meaning and for power.
History of Medicine Robert Hooke (1635-1703) was a remarkably versatile man — artist, biologist, physicist, engineer, architect, inventor, and more. However, his crowning glory was Micrographia: or Some Physiological Descriptions of Minute Bodies made by Magnifying Glasses , first published 1665. It was a masterpiece — an exquisitely illustrated introduction to the previously unknown microscopic world. This exhibit focuses on Hooke's influences and legacy in print, the pioneering books that stimulated Hooke's research, and the works he left for others — most famously the great Dutch microscopist, Antoni van Leeuwenhk (1632-1723). August 1 – November 1, 2007.
History of Medicine The tragedy of the AIDS epidemic brought about an outpouring of items, intended to educate the public about the disease and its consequences. Starting in the early 1980s—AIDS was first identified in 1981—the initial response to the disease generated ephemeral public health materials, such as buttons, posters, cards, comic books, and even lunch boxes. Since AIDS was both incurable and invariably fatal, these messages of prevention were the only effective steps that public health officials could take. Produced by government health departments as well as private organizations, these ephemeral objects became an important medium for messages of awareness, prevention, compassion, and responsibility.
History of Medicine Introduction 引言 Tuberculosis was one of the major epidemic diseases in 20th-century China, along with smallpox, malaria, cholera, schistosomiasis, and other epidemics. Organized efforts to fight the disease began in 1933 when the National Anti-Tuberculosis Association of China was established. From 1950 through 1980, the Chinese government launched anti-tuberculosis campaigns as part of the national public health movement. The Anti-TB Association and the Red Cross played important roles in the health education campaigns. Health posters became an important tool to disseminate health knowledge and methods of prevention and treatment. The campaigns, along with the universal free healthcare, led to a significant decline of tuberculosis.
American Environmental Photographs, 1891-1936 Browse Collection by: Collection Connection Classroom resources for teachers About This Collection The images in the American Environmental Photographs Collection were created by faculty, staff, and students in the Department of Botany at the University of Chicago from the 1890s to the 1930s. Among the most active photographers contributing to the collection were Henry C. Cowles, George D. Fuller, George E. Nichols, Charles J. Chamberlain, Ira B. Meyer, Paul J. Sedgwick, William J. Cribbs, and Ezra J. Kraus. The earliest photographs in the collection were taken in 1891 in the arid desert landscapes of California, Arizona, Utah, and Nevada.