Results 51 to 60 of about 2,126,967 (298)

The Great Space Weather Event during February 1872 Recorded in East Asia

, 2018
The study of historical great geomagnetic storms is crucial for assessing the possible risks to the technological infrastructure of a modern society, caused by extreme space-weather events.
Ebihara, Yusuke, Giunta, Alessandra S., Hattori, Kentaro, Hayakawa, Hisashi, Hayakawa, Satoshi, Macdonald, Lee T., Mitsuma, Yasuyuki, Shibata, Kazunari, Silverman, Sam M., Toriumi, Shin, Wild, Matthew N., Willis, David M.   +11 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

Hunger Map 2015 [PDF]

, 2016
From Africa and Asia to Latin America and the Near East, there are 795 million people in the world who do not get enough food to lead a normal, active life. The Hunger Map provides invaluable information that helps school teachers and children learn more

core  

Diversity and complexity in neural organoids

FEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
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  

Impact Analysis on the Effective Synergy Between Climate Change, Ecological Degradation and Energy Consumption on Economic Growth in Nigeria

SAGE Open, 2021
There is growing global concern about the unpredictable nature of climate change and rapid ecological degradation, which has emanated from quest to enhance economic growth in many parts of the world.
Dahiru Alhaji-Bala Birnintsaba, Hüseyin Ozdeser, Andisheh Saliminezhad   +2 more
doaj   +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

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

Evaluation of Ductility of Reinforced Concrete Structures with Shear Walls having Different Thicknesses and Different Positions

International Islamic University Malaysia Engineering Journal, 2022
Ductility is one of the main criteria in reinforced concrete (RC) structures. ASCE 7-10 seismic design code recognizes the importance of ductility in earthquake-resistant structures.
Rifat Resatoglu, Shahram Jkhsi
doaj   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source