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The lacuna model is a tool for unlocking culture differences or missing "gaps" in text (in the further meaning). The lacuna model was established as a theory by Jurij Sorokin and Irina Markovina (Russia), further developed by Astrid Ertelt-Vieth and Hartmut Schröder (Germany) and practical research tested in ethnopsycholinguistics (Igor Panasiuk 2000 and 2005), Russian studies (Vladimir ...
Human embryology is the study of this development during the first eight weeks after fertilization. The normal period of gestation (pregnancy) is about nine months or 36 weeks. The germinal stage refers to the time from fertilization through the development of the early embryo until implantation is completed in the uterus .
This constitutes the so-called capsule of the space. Each lacuna is generally occupied by a single cell, but during the division of the cells, it may contain two, four, or eight cells. Lacunae are found between narrow sheets of calcified matrix that are known as lamellae (/ l ə ˈ m ɛ l i / lə-MEL-ee).
[1] Development. The embryological origin of the lacuna magna is contested. [2] However, recent evidence suggests it and the navicular fossa of the male urethra ...
Aerenchyma in stem cross section of a typical wetland plant. Aerenchyma or aeriferous parenchyma [1] or lacunae, is a modification of the parenchyma to form a spongy tissue that creates spaces or air channels in the leaves, stems and roots of some plants, which allows exchange of gases between the shoot and the root. [2]
This is a list of books and monographs by the American geneticist Thomas Hunt Morgan. Morgan produced 22 books on embryology, genetics and evolution. Books are in order by date. Three of Morgan's co-authors have their own articles: Calvin Bridges, Alfred Sturtevant and Hermann Joseph Muller.
A History of Embryology is a 1934 book by Joseph Needham. [1] The book is based on lectures on Speculation, Observation, and Experiment. The same lectures were then compiled and released as a book published. [2] The works contain several sections dedicated to Spagyric. The book shows the development of embryological thought and scientific ...
Borys Ivanovych Balinsky (23 September 1905 – 1 September 1997) was a Ukrainian-South African biologist, embryologist, entomologist.. A professor at Kiev University and later the University of the Witwatersrand, Johannesburg, [1] Balinsky was a pioneer researcher in the field of experimental embryology, electron microscopy and developmental biology and the author of a popular textbook in ...