Results 51 to 60 of about 2,117,846 (300)

Annotated List of Stoneflies (Plecoptera) from Stebbins Gulch in Northeastern Ohio [PDF]

, 2017
(excerpt) Stebbins Gulch is situated within property owned by The Holden Arboretum in northwestern Geauga County, Ohio, approximately 8.0 km east of the village of Kirtland (Fig. 1).
Foote, B. A, Tkac, Martin A
core   +3 more sources

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

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

The Keasler site (41HS235), a Titus Phase Cemetery in the Little Cypress Creek Basin, Harrison County, Texas [PDF]

, 2015
The Keasler site (41HS235) is a Late Caddo period, Titus phase (ca. A.D. 1430-1680) cemetery in the East Texas Pineywoods. The site was excavated by collectors in the late 1970s, including Red McFarland, one of the more active looters of Caddo burials in
Perttula, Timothy K.
core   +1 more source

Sodium Atoms in the Lunar Exotail: Observed Velocity and Spatial Distributions [PDF]

, 2011
The lunar sodium tail extends long distances due to radiation pressure on sodium atoms in the lunar exosphere. Our earlier observations measured the average radial velocity of sodium atoms moving down the lunar tail beyond Earth (i.e., near the anti ...
E.J. Mierkiewicz, F.L. Roesler, Haffner, Huebner, J.K. Wilson, L.M. Haffner, Lee, Matta, Mendillo, Michael R. Line, Mierkiewicz, Mierkiewicz, Potter, Press, R.J. Oliversen, Smith, Stern, Tyler, Wilson, Wilson   +19 more
core   +4 more sources

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

The Impact of Macroeconomic Variables on Stock Returns: A Case of the Johannesburg Stock Exchange [PDF]

Revista Română de Statistică, 2018
The study assessed association of macroeconomic variables: inflation (INF), Money supply growth (M3), Interest rates (IR) and USD ZAR exchange rate (EX) using quarterly data from the year 1981Q1 to 2016 Q4 on stock price for the Johannesburg Stock ...
Boldwin Ndlovu , Faisal Faisal, Nil Gunsel Resatoglu, Turgut Türsoy   +3 more
doaj  

Selected Properties of Overlaid Magnesium Based Composite Panels for Flooring

Applied Sciences, 2020
The objective of this work was to evaluate some of the mechanical and physical properties of the flooring materials manufactured from panels having magnesia substrate overlaid with oak veneer (Querqus alba) and linoleum sheets.
Fidan Aslanova, Gozen Elkiran, Salim Hiziroglu, Serkan Ilseven   +3 more
doaj   +1 more source

Infrared laser sampling of low volumes combined with shotgun lipidomics reveals lipid markers in palatine tonsil carcinoma

Molecular Oncology, EarlyView.
Nanosecond infrared laser (NIRL) low‐volume sampling combined with shotgun lipidomics uncovers distinct lipidome alterations in oropharyngeal squamous cell carcinoma (OPSCC) of the palatine tonsil. Several lipid species consistently differentiate tumor from healthy tissue, highlighting their potential as diagnostic markers.
Leonard Kerkhoff, Manuela Moritz, Dennis Eggert, Anna Worthmann, Joerg Heeren, Henrike Zech, Till S. Clauditz, Waldemar Wilczak, Hartmut Schlüter, Christian S. Betz, Arne Böttcher, Jan Hahn   +11 more
wiley   +1 more source

Recurrent cancer‐associated ERBB4 mutations are transforming and confer resistance to targeted therapies

Molecular Oncology, EarlyView.
We show that the majority of the 18 analyzed recurrent cancer‐associated ERBB4 mutations are transforming. The most potent mutations are activating, co‐operate with other ERBB receptors, and are sensitive to pan‐ERBB inhibitors. Activating ERBB4 mutations also promote therapy resistance in EGFR‐mutant lung cancer.
Veera K. Ojala, Sini Ahonen, Sara Peltola, Aura Tuohisto‐Kokko, Olaya Esparta, Peppi Suominen, Anne Jokilammi, Iman Farahani, Deepankar Chakroborty, Nikol Dibus, Steffen Boettcher, Tomi T. Airenne, Mark S. Johnson, Lisa D. Eli, Klaus Elenius, Kari J. Kurppa   +15 more
wiley   +1 more source