scholarly journals Posterior spiracle specific GAL4 lines: New reagents for developmental biology and respiratory physiology

genesis ◽  
2002 ◽  
Vol 34 (1-2) ◽  
pp. 16-18 ◽  
Author(s):  
N. T. Takaesu ◽  
A. N. Johnson ◽  
S. J. Newfeld
Keyword(s):  
Developmental Biology ◽  
Respiratory Physiology ◽  
Posterior Spiracle

The 1-MeV Electron Microscope Installation at the University of Colorado

1973 ◽  
Vol 31 ◽  
pp. 8-9 ◽  
Author(s):  
Mircea Fotino
Keyword(s):  
Electron Microscopy ◽  
Developmental Biology ◽  
Transmission Electron Microscopy ◽  
Electron Microscope ◽  
National Institutes Of Health ◽  
Experimental Program ◽  
University Of Colorado ◽  
Transmission Electron ◽  
The University ◽  
Research Resources

A new 1-MeV transmission electron microscope (Model JEM-1000) was installed at the Department of Molecular, Cellular and Developmental Biology of the University of Colorado in Boulder during the summer and fall of 1972 under the sponsorship of the Division of Research Resources of the National Institutes of Health. The installation was completed in October, 1972. It is installed primarily for the study of biological materials without many of the limitations hitherto unavoidable in standard transmission electron microscopy. Only the technical characteristics of the installation are briefly reviewed here. A more detailed discussion of the experimental program under way is being published elsewhere.

Developmental Biology Meets Ecology

2009 ◽  
Vol 138 (3) ◽  
pp. 421-422
Author(s):  
Antónia Monteiro
Keyword(s):  
Developmental Biology

The hydroid research of American naturalist Samuel F. Clarke, 1851–1928

1997 ◽  
Vol 24 (1) ◽  
pp. 19-36 ◽  
Author(s):  
DALE R. CALDER ◽  
LESTER D. STEPHENS
Keyword(s):  
Developmental Biology ◽  
Taxonomic Status ◽  
Doctoral Dissertation ◽  
Nominal Species ◽  
Marine Biological Laboratory ◽  
Spotted Salamander ◽  
Johns Hopkins University ◽  
American Naturalist ◽  
American Schools ◽  
American Society

Samuel Fessenden Clarke was the leading specialist on hydroids (phylum Cnidaria) in North America over the last quarter of the nineteenth century. During that period he published taxonomic papers on hydroids from both the Atlantic and Pacific coasts of the continent, from the Gulf of Mexico, and from the eastern Pacific off Central and South America. He also authored a section on hydrozoan biology for “The Riverside Natural History” series. Most of his papers on hydroids were published while he was in his twenties. Clarke described as new 61 nominal species, three nominal genera, and one nominal family, as well as two “varieties” of hydroids. A list of these, and their current taxonomic status, appears in the present work. Clarke consistently provided sound descriptions and locality data for all supposed new species, and drew accurate illustrations of most of them. His research on Hydrozoa, beyond alphataxonomy, was directed towards faunal distributions and the use of hydroid assemblages as biogeographic indicators. In addition to investigations on hydroids, Clarke carried out research on the developmental biology of amphibians and reptiles. His doctoral dissertation at Johns Hopkins University was based on the embryology of the “Spotted Salamander” (=Yellow-spotted Salamander), and he published a major paper on the habits and embryology of the American Alligator. Most of Clarke's career was devoted to academic duties at Williams College, Massachusetts, where he was recognized as a dedicated and inspiring teacher. He served the American Society of Naturalists in various capacities, including a term as its president, was an influential trustee of the Marine Biological Laboratory, Woods Hole, and promoted the study of science in American schools.

Evo-Devo and the Structure(s) of Evolutionary Theory

2017 ◽  
Author(s):  
Alan C. Love
Keyword(s):  
Developmental Biology ◽  
Evolutionary Theory ◽  
Mechanistic Explanation ◽  
Evolutionary Developmental Biology ◽  
Primary Concern ◽  
Adaptive Function ◽  
Specific Content ◽  
Central Location ◽  
Developmental Form ◽  
Evo Devo

Many researchers have argued that evolutionary developmental biology (evo-devo) constitutes a challenge to standard evolutionary theory, requiring the explicit inclusion of developmental processes that generate variation and attention to organismal form (rather than adaptive function). An analysis of these developmental-form challenges indicates that the primary concern is not the inclusion of specific content but the epistemic organization or structure of evolutionary theory. Proponents of developmental-form challenges favor moving their considerations to a more central location in evolutionary theorizing, in part because of a commitment to the value of mechanistic explanation. This chapter argues there are multiple legitimate structures for evolutionary theory, instead of a single, overarching or canonical organization, and different theory presentations can be understood as idealizations that serve different investigative and explanatory goals in evolutionary inquiry.

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