4,756 research outputs found

    ʿAmude Shelomoh

    No full text
    meḥarer Shelomoh Lurya ben Yeḥiʾel ... ; ... Eliya ben Mosheh Loʾants [Hrsg.]2 Teile mit jeweils besonderem TitelblattTitel in der Einleitung (Teil 1, Blatt 2b): "... ṿe-ḳarati shemam ʿAmude Shelomoh"Kommentar zum "Grossen Buch der Gebote" (Sefer mitsṿot gadol) des Moses ben Jacob aus Coucy (Die Säulen Salomos

    Swarming and complex pattern formation in <it>Paenibacillus vortex </it>studied by imaging and tracking cells

    No full text
    Abstract Background Swarming motility allows microorganisms to move rapidly over surfaces. The Gram-positive bacterium Paenibacillus vortex exhibits advanced cooperative motility on agar plates resulting in intricate colonial patterns with geometries that are highly sensitive to the environment. The cellular mechanisms that underpin the complex multicellular organization of such a simple organism are not well understood. Results Swarming by P. vortex was studied by real-time light microscopy, by in situ scanning electron microscopy and by tracking the spread of antibiotic-resistant cells within antibiotic-sensitive colonies. When swarming, P. vortex was found to be peritrichously flagellated. Swarming by the curved cells of P. vortex occurred on an extremely wide range of media and agar concentrations (0.3 to 2.2% w/v). At high agar concentrations (> 1% w/v) rotating colonies formed that could be detached from the main mass of cells by withdrawal of cells into the latter. On lower percentage agars, cells moved in an extended network composed of interconnected "snakes" with short-term collision avoidance and sensitivity to extracts from swarming cells. P. vortex formed single Petri dish-wide "supercolonies" with a colony-wide exchange of motile cells. Swarming cells were coupled by rapidly forming, reversible and non-rigid connections to form a loose raft, apparently connected via flagella. Inhibitors of swarming (p-Nitrophenylglycerol and Congo Red) were identified. Mitomycin C was used to trigger filamentation without inhibiting growth or swarming; this facilitated dissection of the detail of swarming. Mitomycin C treatment resulted in malcoordinated swarming and abortive side branch formation and a strong tendency by a subpopulation of the cells to form minimal rotating aggregates of only a few cells. Conclusion P. vortex creates complex macroscopic colonies within which there is considerable reflux and movement and interaction of cells. Cell shape, flagellation, the aversion of cell masses to fuse and temporary connections between proximate cells to form rafts were all features of the swarming and rotation of cell aggregates. Vigorous vortex formation was social, i.e. required > 1 cell. This is the first detailed examination of the swarming behaviour of this bacterium at the cellular level.</p

    Zürich, Braginsky Collection, B124 : Jacob ben Asher, <i>Tur Orah Hayyim</i> ("Row: Way of Life")

    No full text
    This manuscript by Jacob ben Asher (son of the rabbi and codifier Asher ben Jehiel) contains one of the oldest copies of the Jewish code Arba’ah Turim. The entire work treats all rules of Jewish law concerning prayers and the synagog. This manuscript contains only the first of four parts. The main text is surrounded by many glosses and commentaries; noteworthy is an autograph note by the influential 15th century German rabbi Jacob Weil in Slavic. The manuscript offers variant readings to the standard editions and contains some otherwise unknown Responsa ("rabbinic answers") by the important Rabbi Israel Isserlin (1390-1460).Online Since: 2015-03-1

    Weisheit von Sirach

    No full text
    "Ben Sira, wisdom of (also called Ecclesiasticus), a work of the Apocrypha, which, though usually known by this name, may have been called by its author, "The Words of Simeon b. Jeshua," the title found on the Hebrew fragments" (Encyc. Judaica, CD-Rom Ed., 1997)Erscheinungsjahr nach Vorlage: 279 [i.e. 1519]Ben Sira folgen noch eine Reihe anderer Abhandlungen cf. Steinschneider p. 203 No. 1363. Die wichtigsten NZ!Siehe auch Karl Heinz Burmeister, Sebastian Münster, in: Basler Beiträge zur Geschichtswissenschaft, Bd. 91, 1963, S. 8

    Dataset for: Semantic segmentation of pollen grain images generated from scattering patterns via deep learning

    No full text
    This dataset supports the publication: Grant-Jacob, James A., Praeger, Matthew, Eason, Robert W. and Ben Mills (2021). Semantic segmentation of pollen grain images generated from scattering patterns via deep learning. IOP Journal of Physics Communications </span

    Perush ʿal ha-Torah : ʿal derekh ha-emet

    No full text
    le-ḥakham ha-ḳadosh R. Menaḥem me-Reḳanaṭi zatsalKorrigiert von Jacob ben Hayyim ben Isaac ibn Adonijah (s. das Vorwort auf der Titelblattrückseite)Hinter dem teilweise abgelösten vorderen Spiegelblatt erkennbar Teile eines jiddischen Besitzereintrags ('ikh Zeligman', Datum ʿErev rosh ḥodesh Ṭevet 530 [17.12.1769, Jahr unsicher]), Rest überkleb

    Chariot race, or, Ben Hur march [music] /

    No full text
    Cover title.; "Respectfully inscribed to Gen. Lew Wallace, author of Ben Hur."; Played by Sousa's Band.; "Author of Charge of the Light Brigade, Napoleon's last charge Four horsemen of the apocalypse, March, etc"--Cover.; Also available online http://nla.gov.au/nla.mus-vn2828541.Ben Hur marc

    Chariot race, or, Ben Hur march [music] /

    No full text
    Cover title.; "Respectfully inscribed to Gen. Lew Wallace, author of Ben Hur."; Played by Sousa's Band.; "Author of Charge of the Light Brigade, Napoleon's last charge Four horsemen of the apocalypse, March, etc". -- Cover.; Also available online http://nla.gov.au/nla.mus-an5299960; MUS: N, - ; A, MUS/E89/115 ; N/A, -.Ben Hur marc

    De decem captivitatibus Iudaeorum, & sanguine Zachariae : Opus recens, & ad Prophetas & historias intelligendum, perutile

    No full text
    Ex Ebraeo vertit Fr. Stancarus ; [hrsg. v. Jacob Parcus]Mit Druckermarke und InitialeAutor nach Aufn. d. Österreichischen Nationalbibliothe

    El &lt;i&gt;Debate del cálamo y la espada&lt;/i&gt;, de Jacob ben Eleazar de Toledo

    No full text
    In this article we offer a Spanish translation with a commentary of the fourth chapter of Sefer ha-Mešalim, a collection of tales written by Jacob ben Eleazar of Toledo (13th century) in the style of Maqāmāt; this chapter, known as the Debate between the Pen and the Sword, shows, in an allegorical way, the supremacy of the arts over the arms.En el presente artículo ofrecemos la traducción y el estudio del capítulo cuarto del Sefer ha-Mešalim, colección de cuentos al estilo de las macamas compuesta por Jacob ben Eleazar de Toledo (siglo XIII); este capítulo, conocido como el Debate del cálamo y la espada, expone en forma alegórica la supremacía de las letras sobre las armas
    corecore