Results 131 to 140 of about 2,679,470 (331)

Fruit characters as a basis of fruit choice and seed dispersal in a tropical forest vertebrate community

Oecologia, 1985
(Uploaded by Plazi for the Bat Literature Project) Interactionsbetweena largecommunityof vertebrate frugivore-granivores(including7 species of largecanopy birds, 19 speciesof rodents,7 speciesof ruminants,and 6 species of monkeys), and 122 fruit species they consume, were studied for a year in a tropicalrainforestin Gabon.
Gautier-Hion, Annie, Duplantier, Jean-Marc, Quris, René, Feer, F., Sourd, C., Decoux, J. -P., Dubost, Gerard, Emmons, Louise H., Erard, C., Hecketsweiler, Philippe, Moungazi, Augustin, Roussilhon, C., Thiollay, J. -M.   +12 more
openaire   +4 more sources

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Finite element analysis of photonic crystal fibers [PDF]

, 2005
A finite-element-based vectorial optical mode solver, furnished with Bayliss-Gunzburger-Turkel-like transparent boundary conditions, is used to rigorously analyze photonic crystal fibers (PCFs).
Groesen, E. van, Hoekstra, H.J.W.M., Uranus, H.P.   +2 more
core   +2 more sources

Angle-resolved photoemission study of untwinned PrBa$_2$Cu$_3$O$_7$: undoped CuO$_2$ plane and doped CuO$_3$ chain

, 1999
We have performed an angle-resolved photoemission study on untwinned PrBa$_2$Cu$_3$O$_7$, which has low resistivity but does not show superconductivity.
A. Fujimori, A. I. Liechtenstein, A. I. Rykov, A. Ino, A. Longmore, B. Dardel, B. Grévin, B. O. Wells, C. Kim, C. Kim, C. Kim, C. Kim, D. Khomskii, H. A. Mook, H. B. Radousky, H. Eisaki, H. L. Edwards, J. J. M. Pothuizen, J. Solyom, J. T. Marhert, J. Voit, J. Voit, K. Penc, K. Takenaka, K. Tomimoto, K. Yoshida, M. Goto, M. Merz, M. Schabel, M. Schabel, M. Schabel, M. Tagami, P. A. Lee, R. Fehrenbacher, S. Maekawa, S. Tajima, S. Uchida, T. Mizokawa, V. Meden, Y. Siohara, Z. Zou, Z.-X. Shen   +41 more
core   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Dimensional effects in photoelectron spectra of Ag deposits on GaAs(110) surfaces

, 1995
It is shown that the peak structure observed in angle-resolved photoelectron spectra of metallic deposits can only be unambiguously associated to single electronic states if the deposit has a two dimensional character (finite along one spatial direction).
A.A. Abrikosov, B.M. Trafas, D.A. Evans, D.A. Evans, E. Louis, E.N. Economou, J. A. Vergés, K.W.-K. Shung, T. Miller, V. Gasparian   +9 more
core   +1 more source

A Study of Downwash Effects on Flow and Dispersion Processes around Buildings in Tandem Arrangement

, 2015
Air pollution is one of the world's most important problems. Our paper presents and discusses the relationship between a structure of a flow field among neighboring buildings immersed in a boundary layer, and characteristics of pollutant dispersion in ...
R. Gnatowska
semanticscholar   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

FEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura, Shin‐ichi Tate, Kyota Yasuda   +2 more
wiley   +1 more source

ABSOLUTE INSTABILITY OF COMPRESSIBLE THREE-DIMENSIONAL FLOW

TASK Quarterly, 1999
In the present paper the instability character (absolute/convective) of compressible viscous flow around geometries rotating in uniform flow is analysed. The linear local stability theory is used to investigate the boundary layer stability.
EWA TULISZKA-SZNITKO
doaj  

Mathematical Physics Analysis of Nozzle Shaping at the Gas Outlet from the Aperture to the Differentially Pumped Chamber in Environmental Scanning Electron Microscopy (ESEM)

Sensors
A combination of experimental measurement preparations using pressure and temperature sensors in conjunction with the theory of one-dimensional isentropic flow and mathematical physics analyses is presented as a tool for analysis in this paper ...
Jiří Maxa, Vilém Neděla, Pavla Šabacká, Tomáš Binar   +3 more
doaj   +1 more source