Changes in plasma membrane fluidity of Bryonia dioica internodes during thigmomorphogenesis

AbstractFluidity changes in plasma membrane (PM) lipid extracts or native membranes isolated from Bryonia dioica internodes after a mechanical stimulation were monitored by steady-state fluorescence polarization with 1,6-diphenyl-1,3,5-hexatriene as a probe. The signal was shown to rapidly induce an increase in the bulk lipid fluidity. This event was closely related to a relative enrichment in some phospholipid species (PC, PG and PS) as well as a significant increase in the unsaturation index of total fatty acyl chains. Free sterols and protein content did not appear to be involved into this process. After 48 h, lipids from rubbed internodes became less fluid than PM lipids from control internodes

Observation of Long-Lived Muonic Hydrogen in the 2S State

The kinetic energy distribution of ground state muonic hydrogen atoms mu-p(1S) is determined from time-of-flight spectra measured at 4, 16, and 64 hPa H2 room-temperature gas. A 0.9 keV-component is discovered and attributed to radiationless deexcitation of long-lived mu-p(2S) atoms in collisions with H2 molecules. The analysis reveals a relative population of about 1%, and a pressure-dependent lifetime (e.g. (30.4 +21.4 -9.7) ns at 64 hPa) of the long-lived mu-p(2S) population, equivalent to a 2S-quench rate in mu-p(2S) + H2 collisions of (4.4 +2.1 -1.8) 10^11 s^-1 at liquid hydrogen density.Comment: 4 pages, 2 figures, accepted for publication in Physical Review Letter

Praktischer Unterricht in der Feuerwerkerkunst für Dilettanten und angehende Feuerwerker oder Vollständige Anweisung alle Arten von Land-, Wasser- und Luftfeuerwerken, sowie auch Feuerwerke zu Luftballons, auf Theatern und zu Kriegsbedürfnissen zu verfertigen, aufzustellen und abzubrennen

PRAKTISCHER UNTERRICHT IN DER FEUERWERKERKUNST FÜR DILETTANTEN UND ANGEHENDE FEUERWERKER ODER VOLLSTÄNDIGE ANWEISUNG ALLE ARTEN VON LAND-, WASSER- UND LUFTFEUERWERKEN, SOWIE AUCH FEUERWERKE ZU LUFTBALLONS, AUF THEATERN UND ZU KRIEGSBEDÜRFNISSEN ZU VERFERTIGEN, AUFZUSTELLEN UND ABZUBRENNEN Praktischer Unterricht in der Feuerwerkerkunst für Dilettanten und angehende Feuerwerker oder Vollständige Anweisung alle Arten von Land-, Wasser- und Luftfeuerwerken, sowie auch Feuerwerke zu Luftballons, auf Theatern und zu Kriegsbedürfnissen zu verfertigen, aufzustellen und abzubrennen ([I]) Einband (-) Titelseite ([I]) Vorwort ([III]) Inhaltsverzeichnis ([VI]) Stoffe für den Feuerwerker und chemische Eigenschaften derselben. Beschreibung der nöthigen Werkzeuge und Geräthschaften. Vorarbeiten. ([1]) Stoffe für den Feuerwerker ([1]) Hülfsstoffe für den Feuerwerker (12) Werkzeuge und Geräthschaften für den Feuerwerker (20) Vorarbeiten (27) Bereitung aller Arten von Land-, Luft- und Wasser-Feuerwerken. (32) Landfeuerwerke (32) Feste Feuer (32) Vertikal-rotirende Feuer (49) Gemischte Feuer (feste und rotirende) (52) Horizontal oder auf einem Zapfen rotirende Feuer (66) Zusammengesetzte, auf einem Zapfen rotirende Stücke (69) Decoupirungen und Transparente (72) Luftfeuerwerke (79) Feuer, welche durch ihre innere Kraft in die Luft steigen (79) Feuer, welche in die Luft geworfen werden (95) Garnituren (102) Wasserfeuerwerke (109) Feuerwerke für Luftballons (116) Theaterfeuerwerke (121) Kriegsfeuer (131) Tafel der Compositionen ([136]) Wörterbuch ([148]) Kurze Beschreibung einiger Feuerwerke ([166]) Vergleichende Tabelle (178) Tafel I (Tafel I) Tafel II (Tafel II) Tafel III (Tafel III) Tafel IV (Tafel IV) Tafel V (Tafel V) Tafel VI (Tafel VI) Tafel VII (Tafel VII) Tafel VIII (Tafel VIII) Tafel IX (Tafel IX) Tafel X (Tafel X) Tafel XI (Tafel XI) Tafel XII (Tafel XII) Tafel XIII (Tafel XIII) Tafel XIV (Tafel XIV) Tafel XV (Tafel XV) Tafel XVI (Tafel XVI) Tafel XVII (Tafel XVII) Tafel XVIII (Tafel XVIII) Tafel XIX (Tafel XIX) Tafel XX (Tafel XX) Tafel XXI (Tafel XXI) Tafel XXII (Tafel XXII) Tafel XXIII (Tafel XXIII) Tafel XXIV (Tafel XXIV) Tafel XXV (Tafel XXV) Tafel XXVI (Tafel XXVI) Tafel XXVII (Tafel XXVII) Tafel XXVIII (Tafel XXVIII) Tafel XXIX (Tafel XXIX) Leerseite (-) Farbinformation (-) Einband (-

Long-term mitigation of drought changes the functional potential and life-strategies of the forest soil microbiome involved in organic matter decomposition

Climate change can alter the flow of nutrients and energy through terrestrial ecosystems. Using an inverse climate change field experiment in the central European Alps, we explored how long-term irrigation of a naturally drought-stressed pine forest altered the metabolic potential of the soil microbiome and its ability to decompose lignocellulolytic compounds as a critical ecosystem function. Drought mitigation by a decade of irrigation stimulated profound changes in the functional capacity encoded in the soil microbiome, revealing alterations in carbon and nitrogen metabolism as well as regulatory processes protecting microorganisms from starvation and desiccation. Despite the structural and functional shifts from oligotrophic to copiotrophic microbial lifestyles under irrigation and the observation that different microbial taxa were involved in the degradation of cellulose and lignin as determined by a time-series stable-isotope probing incubation experiment with 13C-labeled substrates, degradation rates of these compounds were not affected by different water availabilities. These findings provide new insights into the impact of precipitation changes on the soil microbiome and associated ecosystem functioning in a drought-prone pine forest and will help to improve our understanding of alterations in biogeochemical cycling under a changing climate

Observation of the Crossover from Photon Ordering to Delocalization in Tunably Coupled Resonators

Networks of nonlinear resonators offer intriguing perspectives as quantum simulators for non-equilibrium many-body phases of driven-dissipative systems. Here, we employ photon correlation measurements to study the radiation fields emitted from a system of two superconducting resonators, coupled nonlinearly by a superconducting quantum interference device (SQUID). We apply a parametrically modulated magnetic flux to control the linear photon hopping rate between the two resonators and its ratio with the cross-Kerr rate. When increasing the hopping rate, we observe a crossover from an ordered to a delocalized state of photons. The presented coupling scheme is intrinsically robust to frequency disorder and may therefore prove useful for realizing larger-scale resonator arrays

A multi-site campaign to measure solar-like oscillations in Procyon. II. Mode frequencies

We have analyzed data from a multi-site campaign to observe oscillations in the F5 star Procyon. The data consist of high-precision velocities that we obtained over more than three weeks with eleven telescopes. A new method for adjusting the data weights allows us to suppress the sidelobes in the power spectrum. Stacking the power spectrum in a so-called echelle diagram reveals two clear ridges that we identify with even and odd values of the angular degree (l=0 and 2, and l=1 and 3, respectively). We interpret a strong, narrow peak at 446 muHz that lies close to the l=1 ridge as a mode with mixed character. We show that the frequencies of the ridge centroids and their separations are useful diagnostics for asteroseismology. In particular, variations in the large separation appear to indicate a glitch in the sound-speed profile at an acoustic depth of about 1000 s. We list frequencies for 55 modes extracted from the data spanning 20 radial orders, a range comparable to the best solar data, which will provide valuable constraints for theoretical models. A preliminary comparison with published models shows that the offset between observed and calculated frequencies for the radial modes is very different for Procyon than for the Sun and other cool stars. We find the mean lifetime of the modes in Procyon to be 1.29 +0.55/-0.49 days, which is significantly shorter than the 2-4 days seen in the Sun.Comment: accepted for publication in Ap