1,354,467 research outputs found
Autobiography of Dorothy Blechschmidt - working manuscript
No full textTypescript of working draft of Dorothy Case-Blechschmidt's autobiography. Blechschmidt graduated from Woman's Medical College in 1907, was a medical missionary in Turkey and was active in public and community health in Philadelphia. This manuscript is on loan from Julia Case Gabell and is not available for on-site research at the Women in Medicine Archives
Essays rund um die Humanembryologische Dokumentationssammlung Blechschmidt
No full textSoftcover, 17x24Im Institut für Anatomie der Universitätsmedizin Göttingen befindet sich die Humanembryologische Dokumentationssammlung Blechschmidt, eine medizinische Präparatesammlung mit Lehrausstellung, die aus 61 Embryomodellen besteht. Im Sommersemester 2019 und im Wintersemester 2019/2020 konzipierte eine Gruppe von Masterstudierenden der Kulturanthropologie / Europäischen Ethnologie eine Ausstellung, die Entstehungsgeschichte, Provenienz und gesellschaftliche Relevanz von Sammlung und Ausstellung thematisiert. Dieser Band enthält die Essays der Studierenden, die während der wissenschaftlichen Auseinandersetzung und Recherche an der Humanembryologischen Sammlung Blechschmidt entstanden sind.The Blechschmidt collection is a collection of medical preparations used primarily for teaching purposes. Consisting of 61 models of embryos, it is located at the Institute for Anatomy of the Medical Faculty of Göttingen University. Over the course of the summer semester 2019 and the winter semester 2019/2020 a group of cultural anthropology students conceptualized a special exhibition highlighting history, provenance and social relevance of Blechschmidt collection and exhibition.
This volume contains essays by the students involved, that resulted out of scientific discourse and research revolving around the Blechschmidt collection
Essays rund um die Humanembryologische Dokumentationssammlung Blechschmidt
No full textIm Institut für Anatomie der Universitätsmedizin Göttingen befindet sich die Humanembryologische Dokumentationssammlung Blechschmidt, eine medizinische Präparatesammlung mit Lehrausstellung, die aus 61 Embryomodellen besteht. Im Sommersemester 2019 und im Wintersemester 2019/2020 konzipierte eine Gruppe von Masterstudierenden der Kulturanthropologie / Europäischen Ethnologie eine Ausstellung, die Entstehungsgeschichte, Provenienz und gesellschaftliche Relevanz von Sammlung und Ausstellung thematisiert. Dieser Band enthält die Essays der Studierenden, die während der wissenschaftlichen Auseinandersetzung und Recherche an der Humanembryologischen Sammlung Blechschmidt entstanden sind.The Blechschmidt collection is a collection of medical preparations used primarily for teaching purposes. Consisting of 61 models of embryos, it is located at the Institute for Anatomy of the Medical Faculty of Göttingen University. Over the course of the summer semester 2019 and the winter semester 2019/2020 a group of cultural anthropology students conceptualized a special exhibition highlighting history, provenance and social relevance of Blechschmidt collection and exhibition. This volume contains essays by the students involved, that resulted out of scientific discourse and research revolving around the Blechschmidt collection
Reifying dynamical algebra: maximal ideals in countable rings, constructively
No full textThe existence of a maximal ideal in a general nontrivial commutative ring is tied together with the axiom of choice. Following Berardi, Valentini and thus Krivine but using the relative interpretation of negation (that is, as “implies 0 = 1”) we
show, in constructive set theory with minimal logic, how for countable rings one can do without any kind of choice and without the usual decidability assumption that the ring is strongly discrete (membership in finitely generated ideals is decidable). By a
functional recursive definition we obtain a maximal ideal in the sense that the quotient ring is a residue field (every noninvertible element is zero), and with strong discreteness even a geometric field (every element is either invertible or else zero). Krull’s lemma for the related notion of prime ideal follows by passing to rings of fractions. By employing a construction variant of set-theoretic forcing due to Joyal and Tierney, we expand our treatment to arbitrary rings and establish a connection with dynamical algebra: We recover the dynamical approach to maximal ideals as a parametrized version of the celebrated double negation translation. This connection allows us to give formal a priori criteria elucidating the scope of the dynamical method. Along the way we do a case study for proofs in algebra with minimal logic, and generalize the construction to arbitrary inconsistency predicates. A partial Agda formalization is available at an accompanying repository
Maximal Ideals in Countable Rings, Constructively
No full textThe existence of a maximal ideal in a general nontrivial commutative ring is tied together with the axiom of choice. Following Berardi, Valentini and thus Krivine but using the relative interpretation of negation (that is, as "implies 0 = 1") we show, in constructive set theory with minimal logic, how for countable rings one can do without any kind of choice and without the usual decidability assumption that the ring is strongly discrete (membership in finitely generated ideals is decidable). By a functional recursive definition we obtain a maximal ideal in the sense that the quotient ring is a residue field (every noninvertible element is zero), and with strong discreteness even a geometric field (every element is either invertible or else zero). Krull's lemma for the related notion of prime ideal follows by passing to rings of fractions. All this equally applies to rings indexed by any well-founded set, and can be carried over to Heyting arithmetic with minimal logic. We further show how a metatheorem of Joyal and Tierney can be used to expand our treatment to arbitrary rings. Along the way we do a case study for proofs in algebra with minimal logic. An Agda formalization is available at an accompanying repository
Is there a chemical signal of friendship?
No full textCaspers B, Hagedorn J, Blechschmidt J. Is there a chemical signal of friendship? In: CHEMICAL SENSES. Vol 44. Oxford: OXFORD UNIV PRESS; 2019: E63
SU‐FF‐T‐140: Dosimetric IMRT Plan Verification and Daily Quality Assurance with a Two‐Dimensional Ionization Chamber Array
No full textGoing Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
A Constructive Picture of Noetherian Conditions and Well Quasi-orders
No full textFrom a constructive perspective the many notions of Noetherianity and well quasi-order form a rich landscape, which we here explore. Besides the well-studied conditions about sequences, we include the finite basis property of the original Higman lemma, trying a first joint analysis of Noetherianity and well quasi-order in the spirit of reverse mathematics with intuitionistic logic. Applying a topological semantics for intuitionistic logic, we settle a conjecture by Ray Mines; moreover, by the realizability topos of infinite-time Turing machines, we separate the ascending chain condition with finite generation from the one without
The Biography of Specimen "09.04.1954, 3.4 mm" from the "Blechschmidt Collection of Human Embryos" at Göttingen University with a Special Focus on the Production and Usage of Enlarged 3D Replicas of Embryos in the Anatomical Research on Human Embryos
No full textThe "Blechschmidt Collection of Human Embryos" housed at the Anatomical Institute of Göttingen University (Germany) is an important historical collection of human embryo specimens whose history dates back up to the mid-1940s. It is named after its founder Prof. Erich Blechschmidt (1904-1992). A 2-year research project was conducted from 2017 to 2019 with the aim of clarifying the provenience of the human embryo specimens collected by Blechschmidt. This project not only has provided information on the origin of the specimens but, additionally, led to the discovery of photographic documents illustrating the process by which Blechschmidt built the enlarged 3-dimensional replicas of human embryos that are shown in a dedicated exhibition hall in the basement of the Anatomical Institute. Here, we report on an embryo from the Blechschmidt collection whose biography as a microscopical specimen as well as a source for objects of Blechschmidt's collection of 3-dimensional replicas of human embryos is documented by letters, lab-books, and photographs. Our report is complemented by a short historical review on the production and usage of enlarged 3-dimensional replicas in research on the anatomy of human embryo
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