Results 311 to 320 of about 1,153,497 (356)
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Arthropod Post-embryonic Development

2013
The study of arthropod post-embryonic development is a chapter of biology that requires a new conceptual framework. Some of the reasons behind the inadequacy of the prevailing approach are common to the study of post-embryonic development of all, or most, animals groups; others are specific to the Arthropoda.
MINELLI, ALESSANDRO, FUSCO, GIUSEPPE
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Embryonic bursa development in vitro

European Journal of Immunology, 1977
AbstractAn in vitro culture system for embryonic chicken bursa is described, in which development, as measured by follicle formation (site of B lymphocyte development), position of large basophilic cells (stem cells), and presence of lymphocytes and cells containing cytoplasmic immunoglobulin (B cells), was comparable to that of the bursa in vivo ...
M A, Ritter, A M, Lebacq
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Ammonoid Embryonic Development

1996
A great number of new studies have been carried out on ammonoid embryonic development in the last two decades. We focus here on novel developments and interpretations in the description of the embryonic shell (including terminology, shape, size, ornamentation, microstructure, septa, siphuncle and muscle scars), the sequence of embryonic development ...
Neil H. Landman   +2 more
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Retinoids and Mouse Embryonic Development

1995
Publisher Summary This chapter describes the different aspects of retinoids and mouse embryonic development. Embryogenesis encompasses a very dynamic state of development characterized by precise temporal and spatial cell-tissue inductive interactions. The roles retinoids play during embryonic development are both basic and complex.
T M, Underhill, L E, Kotch, E, Linney
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Gravity and Embryonic Development

1976
The relationship between the developing embryo (both plant and animal) and a gravitational field has long been contemplated. The difficulty in designing critical experiments on the surface of the earth because of its background of 1 g, has been an obstacle to a resolution of the problem.
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Conception control and embryonic development

American Journal of Obstetrics and Gynecology, 1970
Abstract This paper presents the results of a study of normal and abnormal fetuses delivered by women who had recently been employing a particular method of contraception. The incidence of abnormal development and the types of abnormality are presented and a comparison is made with abortions where no contraceptive technique has been used.
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Embryonic development

2021
Christine L. Mummery   +3 more
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Embryonic development

1993
Tatiana A. Dettlaff   +2 more
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Human embryonic development

2001
Introduction Developmental stages of human embryos The preimplantation period Implantation The bilaminar embryonic disc Gastrulation The primary and secondary chorionic villi Notochord formation Mesoderm differentiation Vasculogenesis and tertiary villi Neurulation Folding of the embryo Development of the gestational sac Molecular basis of ...
Grbeša, Đurđica   +2 more
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