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pure-line

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Journal Articles
Historical Studies in the Natural Sciences. 2010; 404532–568 doi: https://doi.org/10.1525/hsns.2010.40.4.532
Published: 01 November 2010
... favored serial and stable forms of life, which were achieved materially through the production of plant populations composed of isogenotypic individuals (clones, pure lines, F1 hybrids). Such pure line ontology, planned seed-economy practices, and metrological arrangements articulated a biopolitics geared...
Journal Articles
Historical Studies in the Natural Sciences. 2018; 485604–615 doi: https://doi.org/10.1525/hsns.2018.48.5.604
Published: 01 November 2018
... later distinction of genotype and phenotype. Both examples will show that the manipulation of data depended on complex classificatory practices: the distinction and articulation of “tribes,” “races,” and “family lines” in the case of Boas, and the selection and construction of “populations” and “pure...
Journal Articles
Historical Studies in the Natural Sciences. 2015; 452303–339 doi: https://doi.org/10.1525/hsns.2015.45.2.303
Published: 01 April 2015
...Bruce J. Hunt In 1861–62, James Clerk Maxwell published “On Physical Lines of Force,” in which he laid out a detailed mechanical model of the ether and argued that it could account not only for electromagnetic phenomena but for light as well. In 1864, he followed with “A Dynamical Theory of the...
Journal Articles
Historical Studies in the Natural Sciences. 2020; 501-241–49 doi: https://doi.org/10.1525/hsns.2020.50.1-2.41
Published: 02 April 2020
..., agricultural sciences, engineering sciences, and even biomedicine.1 Is this a symptom of the journal s mission creep, which could be rectified either by taking a harder line on manuscript submissions or by changing the journal s name once again? Maybe. I take a different tack and ask whether our authors...
Journal Articles
Historical Studies in the Natural Sciences. 2020; 501-2209–216 doi: https://doi.org/10.1525/hsns.2020.50.1-2.209
Published: 02 April 2020
... were superior in the scheme of American thought and letters due to their devotion to pure science, that is, because their efforts were driven by intellectual curiosity, unsullied by business concerns. In this milieu physicists working on industrial applications were as a matter of definition not only...
Journal Articles
Historical Studies in the Natural Sciences. 2020; 501-231–40 doi: https://doi.org/10.1525/hsns.2020.50.1-2.31
Published: 02 April 2020
... impossible to say where to draw the line. 8 Instead, Forman emphasized institutions as a special locus within which a large range of factors converged. In his dissertation, he noted that his principal aim is to give some life and character to the various institutions e.g., academic positions, physical...
Journal Articles
Historical Studies in the Natural Sciences. 2020; 501-2129–182 doi: https://doi.org/10.1525/hsns.2020.50.1-2.129
Published: 02 April 2020
... corner- stone of the discovery of the periodic law (Fig. 8). This document has been repeatedly examined by researchers and published thousands of times. It is currently held in the MMA. For the current purposes, we will focus on the final line of the document, which reads: Pteat: c oabpr c Qpofefm:ojl c...
Journal Articles
Historical Studies in the Natural Sciences. 2020; 501-290–128 doi: https://doi.org/10.1525/hsns.2020.50.1-2.90
Published: 02 April 2020
... representing the climate of the earth during the last million years would be almost infinitely complex, a sinuous line composed of large curves superposed upon larger, small upon large, and smaller upon small. 26 Clements drew heavily on Huntington s ideas, especially Huntington s cycli- cal view of climate...
Journal Articles
Historical Studies in the Natural Sciences. 2019; 495504–555 doi: https://doi.org/10.1525/hsns.2019.49.5.504
Published: 01 November 2019
... asked in 1957. Showing an electron microgram with six pairs of arrows, indicating the range of opinion on where and what the mem- brane is, he added, Most electron microscopists have avoided the question by adopting the practice of light microscopists of calling the thinnest line they could see next to...
Journal Articles
Historical Studies in the Natural Sciences. 2019; 494447–458 doi: https://doi.org/10.1525/hsns.2019.49.4.447
Published: 01 September 2019
... expression products to establish a stem cell fingerprint. Laplane reviews the work of various laboratories attempting to identify a gene pattern expressed only by stem cells. The first problem, though, was that a pure population of stem cells was required before the cells could be tested. Currently, only...
Journal Articles
Historical Studies in the Natural Sciences. 2019; 494351–383 doi: https://doi.org/10.1525/hsns.2019.49.4.351
Published: 01 September 2019
... newly emerged transnational scientific network of human evolution that 37. It aimed to set up a database of genotypes on DNAs at Y-specific loci, establish lympho- blastoid cell lines at the Laboratory of Human Genetics of the New York Blood Center, and provide the laboratories searching for...
Journal Articles
Historical Studies in the Natural Sciences. 2019; 494420–446 doi: https://doi.org/10.1525/hsns.2019.49.4.420
Published: 01 September 2019
... relationship in the context of U.S. history, 1. To Spy the Martians When Earth is Nearest, Los Angeles Herald, 15 Jan 1907. 2. During an opposition, Mars and Earth meet in their orbits to line up side by side in a straight line extending outward from the sun. This alignment happens every twenty-six months...
Journal Articles
Historical Studies in the Natural Sciences. 2019; 493300–337 doi: https://doi.org/10.1525/hsns.2019.49.3.300
Published: 01 June 2019
Journal Articles
Historical Studies in the Natural Sciences. 2019; 493273–299 doi: https://doi.org/10.1525/hsns.2019.49.3.273
Published: 01 June 2019
... Geographical Society (Tokyo chigaku kyo¯kai) was, according to Takeuchi Keiichi, virtually the only geographical society founded in the 19th century in the purely non-Western world. For a treatment of its origins, see Takeuchi Keiichi, Geographical Societies and Colonialism: Comparative Considerations of...
Journal Articles
Historical Studies in the Natural Sciences. 2019; 492226–239 doi: https://doi.org/10.1525/hsns.2019.49.2.226
Published: 01 April 2019
... photons emitted or absorbed by an atom, with discrete frequencies corresponding to the observed lines or gaps in atomic spectra. Heisenberg thought Bohr s orbits, which conflicted with classical electrodynamics as well as classical mechanics, were unphysical. His aim was to get rid of the orbits by...
Journal Articles
Historical Studies in the Natural Sciences. 2019; 492117–150 doi: https://doi.org/10.1525/hsns.2019.49.2.117
Published: 01 April 2019
... sufficient and carries out convinction. So read the first lines of a compendium about the instrument published in 1946, A Report on the Wilson Cloud Chamber and Its Application in Physics. 1 This Report is a journey across the golden age of the instrument; it illus- trates the status of research on...
Journal Articles
Historical Studies in the Natural Sciences. 2019; 491104–115 doi: https://doi.org/10.1525/hsns.2019.49.1.104
Published: 01 February 2019
...). BOOK REV I EW | 111 environmental factors. A major factor, of course, was that physicians could not conduct experiments on pure lines (328) of humans as they could in mice and other plants. This reality left room for ongoing uncertainty and limited interest by physicians, since Mendelization was...
Journal Articles
Historical Studies in the Natural Sciences. 2019; 4911–40 doi: https://doi.org/10.1525/hsns.2019.49.1.1
Published: 01 February 2019
... notions invoked by employers of proto-energetic consideration. Following its premise, scientists used this equation in systems governed by central forces (i.e., attractive and repulsive forces between two bodies directed along the line that connects them, whose magnitudes depend only on their relative...
Journal Articles
Historical Studies in the Natural Sciences. 2019; 49141–69 doi: https://doi.org/10.1525/hsns.2019.49.1.41
Published: 01 February 2019
... purely quantitative measures as petal lengths and widths are not very efficient discriminators compared to many qualitative characters. Were I to start work over at the beginning I should be tempted to use the latter, at least in part. 44 Although Anderson was very pleased with Fisher s precise and...
Journal Articles
Historical Studies in the Natural Sciences. 2018; 485581–593 doi: https://doi.org/10.1525/hsns.2018.48.5.581
Published: 01 November 2018
... visual idiom, and an advertisement for the usefulness of history of data as a category. As Daniel Rosenberg and Anthony Grafton have shown in their innovative study of the history of the timeline, the now-familiar convention that time can be visually represented as a line passing through measured...