Virtual Embryology

Old embryos are now being looked at in a new way. About a hundred years ago, an embryologist by the name of FranMyn Paine Mall devoted his career to collecting human embryos and fetuses (an embryo becomes a fetus after 2 months of gestation) from miscarriages and abortions. These specimens form the core of what is known today as the Carnegie Collection of Human Embryos, housed in the National Museum of Health and Medicine of the Armed Forces Institute of Pathology in Washington, D.C. Whereas this is a priceless national educational resource, how do we extract the information about our embryonic development from these specimens? Classic techniques involve slicing a specimen as thinly as possible on a microtome, then reconstructing the slices in a model large enough to study. The problem is the specimen is effectively destroyed in the process. What is needed is a technique that allows whole embryos to be examined, but not destroyed.

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Ludwig Mayer, a prominent collector of minerals and his collection in the National Museum in Prague

Journal of the National Museum (Prague), Natural History Series ◽

10.2478/jnmpnhs-2018-0004 ◽

2018 ◽

Vol 187 (1) ◽

pp. 65-84

Author(s):

Miroslav Radoň ◽

Dalibor Velebil

Keyword(s):

National Museum ◽

The Core ◽

Geological Conditions ◽

Central Highlands

Ludwig Mayer (*1879, †?) was an significant collector of minerals from Bílina near Teplice. He personally searched minerals in terrain. He also purchased large amount of minerals from dealers or exchanged with other collectors. He deserved a number of interesting or completely new mineralogical findings, which were enriching the overall knowledge of mineralogical conditions of the Bohemian Central Highlands. Many of his findings were published by profesor Josef Emanuel Hibsch (*1852, †1940), the greatest expert on geological conditions of the Bohemian Central Highlands. From 1939 to 1945 Mayer was the manager of geological collections of the museum in Teplice. A total of 596 pieces of minerals from the Mayer’s collection came to the systematic part of the mineralogical collection of the National Museum in Prague. The core of this amount consists of documentary valuable minerals from several important mineralogical sites of the Central Bohemian Highlands, such as Dolní Zálezly, Církvice, Mariánská Rock in Ústí nad Labem, Radejčín and new site Chudoslavice with yellow crystals of chabazite, discovered by Mayer. A total of 54 samples of minerals from the Mayer collection were selected for the newly prepared permanent exhibition of minerals of the National Museum in Prague.

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Aberrant cell division in early-stage human embryos observed by time-lapse monitoring and its negative impacts on subsequent embryonic development

10.26226/morressier.573c1511d462b80296c983bb ◽

2016 ◽

Author(s):

Motokazu Tsuneto

Keyword(s):

Cell Division ◽

Embryonic Development ◽

Early Stage ◽

Time Lapse ◽

Human Embryos ◽

Aberrant Cell ◽

Negative Impacts

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Premises, Policies and Multilateral Whitewashing of Broad Security Doctrines: A Southeast Asia-Based Critique of “Non-traditional” Security

ERIS – European Review of International Studies ◽

10.3224/eris.v6i1.01 ◽

2019 ◽

Vol 6 (1-2019) ◽

pp. 5-26

Author(s):

Delphine Allès

Keyword(s):

Southeast Asia ◽

Human Security ◽

Armed Forces ◽

Southeast Asian ◽

Political Elites ◽

Multilateral Cooperation ◽

The Core ◽

Political Roles ◽

Policy Transformation ◽

Semantic Evolution

This article highlights the formulation of comprehensive conceptions of security in Indonesia, Malaysia and within the framework of the Association of Southeast Asian Nations (ASEAN), well before their academic conceptualisation. These security doctrines have been the basis of the consolidation of state and military apparatuses in the region. They tend to be overlooked by analyses praising the recent conversion of Southeast Asian political elites to the “non-traditional security”? agenda. This latter development is perceived as a source of multilateral cooperation and a substitute for the hardly operationalisable concept of human security. However, in the region, non-traditional security proves to be a semantic evolution rather than a policy transformation. At the core of ASEAN’s security narrative, it has provided a multilateral anointing of “broad” but not deepened conceptions of security, thus legitimising wide-ranging socio-political roles for the armed forces.

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Virtual ultrasound embryo autopsy – myth or reality? Part 1

10.21516/2413-1458-2017-16-3-257-264 ◽

2017 ◽

Author(s):

A.Yu. Blinov

Keyword(s):

Central Nervous System ◽

Nervous System ◽

Prenatal Diagnosis ◽

Medical Imaging ◽

Embryonic Development ◽

Human Embryos ◽

Review Of Literature ◽

Embryonic Period ◽

New Methods ◽

Central Nervous System Defects

A review of literature data on the study of human embryos using new methods of medical imaging is given. The possibility of prenatal diagnosis of severe central nervous system defects has been demonstrated already in the embryonic period at 8–10 weeks of gestation or at the age of 16 to 23 stages of the embryonic development period

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