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The Egg

Jan Sapp

in Genesis: The Evolution of Biology

Published in print:
2003
Published Online:
September 2007
ISBN:
9780195156195
eISBN:
9780199790340
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195156195.003.0010
Subject:
Biology, Evolutionary Biology / Genetics

This chapter discusses the diverging views of embryologists and geneticists about heredity and evolution. The two main reasons for this stemmed from research started in the 19th century. First, ... More


Cytoplasmic Inheritance: The Ciliates

Rowland H. Davis

in The Microbial Models of Molecular Biology: From Genes to Genomes

Published in print:
2003
Published Online:
April 2010
ISBN:
9780195154368
eISBN:
9780199893935
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195154368.003.0013
Subject:
Biology, Biochemistry / Molecular Biology

This chapter considers a major preoccupation of biology in the early part of the 20th century: the role of the cytoplasm, particularly in development. It discusses studies of Paramecium and other ... More


The effects of internal Ca2+ and Mg2+ on ion channels in the squid giant axon

Shunichi Yamagishi, Kishio Furuya, and Fumio Kukita

in Cephalopod Neurobiology: Neuroscience Studies in Squid, Octopus and Cuttlefish

Published in print:
1995
Published Online:
March 2012
ISBN:
9780198547907
eISBN:
9780191724299
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198547907.003.0100
Subject:
Neuroscience, Invertebrate Neurobiology

This chapter deals with the regulatory effects of internally added Ca2+ and Mg2+ on the Na+ and K+ channel activities of an excitable membrane. The regulatory effects of internally applied Ca2+ and ... More


Radiofrequency Dielectric Properties of Cell Suspensions

Koji Asami

in Dielectric Relaxation in Biological Systems: Physical Principles, Methods, and Applications

Published in print:
2015
Published Online:
August 2015
ISBN:
9780199686513
eISBN:
9780191766398
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199686513.003.0013
Subject:
Physics, Soft Matter / Biological Physics

Radiofrequency dielectric properties of cell suspensions provide rich information on the structural and electrical properties of cells. Cell suspensions show α-and β-dispersions, which usually appear ... More


Drug Modification

W. Mark Saltzman

in Drug Delivery: Engineering Principles for Drug Therapy

Published in print:
2001
Published Online:
November 2020
ISBN:
9780195085891
eISBN:
9780197560501
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780195085891.003.0014
Subject:
Chemistry, Medicinal Chemistry

Previous chapters present the characteristics of drug movement through the body. Diffusion is an essential mode of transport at the microscopic scale; concentration gradients drive a substantial ... More


Roots, Shoots, Leaves, and Grapes

David R. Dalton

in The Chemistry of Wine: From Blossom to Beverage and Beyond

Published in print:
2018
Published Online:
November 2020
ISBN:
9780190687199
eISBN:
9780197559802
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780190687199.003.0015
Subject:
Chemistry, Organic Chemistry

As noted earlier and as anticipated by Charles and Francis Darwin it has been argued that plants sense the direction of gravity (gravitropism) by movement of starch granules found in cells called ... More


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