Results 81 to 90 of about 9,138,586 (300)

Stability and Viability in Afghanistan

, 2003
This report focused on the political history of Afghanistan, the main issues and lessons in building viable, democratic state systems, lessons from international case studies on decentralization and nation building, and their applicability to post-2001 ...
Liechtenstein Institute on Self-Determination
core   +1 more source

Organizing the interface—Plasma membrane architecture and receptor dynamics in virus‐cell interactions

FEBS Letters, EarlyView.
Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley   +1 more source

Structure determination using high-order spatial correlations in single-particle X-ray scattering

IUCrJ
Single-particle imaging using X-ray free-electron lasers (XFELs) is a promising technique for observing nanoscale biological samples under near-physiological conditions.
Wenyang Zhao, Osamu Miyashita, Miki Nakano, Florence Tama   +3 more
doaj   +1 more source

Methodology in structural determination and synthesis of insect pheromone

Memorias do Instituto Oswaldo Cruz, 1991
By means of ethereal washing of insect pheromone glands of female moths, GC-MS detection along with microchemical reactions and electroantennogram (EAG) survey, six economically important insect species were targeted for pheromone identification.
Guo-Qiang Lin, Wei-Shan Zhou
doaj   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source

Focus on Quantum Crystallography

IUCrJ
This editorial introduces the `Focus on Quantum Crystallography' collection, coinciding with the centenary of quantum mechanics and highlighting the convergence of crystallography and quantum theory.
Paulina M. Dominiak, Ángel Martín Pendás, Krzysztof Woźniak   +2 more
doaj   +1 more source

Determination of the Absolute Structure of (+)-Akaterpin

Chemical and Pharmaceutical Bulletin, 2012
We describe the total synthesis and structural determination of (+)-akaterpin (1), an inhibitor of phosphatidylinositol-specific phospholipase C (PI-PLC). The key features of the synthetic strategy include the resolution of β,γ-unsaturated ketone (±)-2a with chiral sulfoximine 6. The absolute stereochemistry was determined by comparison of the specific
Hosoi, Hayato, Kawai, Nobuyuki, Hagiwara, Hideki, Suzuki, Takahiro, Nakazaki, Atsuo, Takao, Ken-ichi, Umezawa, Kazuo, Kobayashi, Susumu   +7 more
openaire   +3 more sources

Biophysical approaches for studying viral entry

FEBS Letters, EarlyView.
Viruses infect all living organisms and have been responsible for major epidemics and pandemics. Their ongoing evolutionary battle with host defenses creates a constant need for improved tools to study viral behavior. Advancing methods to probe viral attachment, fusion, and genome release deepen our understanding of how infections begin and support the
Inbar Yosibash, Raya Sorkin
wiley   +1 more source

High-resolution NMR structure of an RNA model system : the 14-mer cUUCGg tetraloop hairpin RNA [PDF]

, 2010
We present a high-resolution nuclear magnetic resonance (NMR) solution structure of a 14-mer RNA hairpin capped by cUUCGg tetraloop. This short and very stable RNA presents an important model system for the study of RNA structure and dynamics using NMR ...
Nozinovic, Senada, Fürtig, Boris, Jonker, Hendrik R. A., Schwalbe, Harald (Prof. Dr.), Richter, Christian   +4 more
core   +1 more source

The human gut microbiome across the life course

FEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero, Basak Bahcivanci, Antonietta Hayhoe, Animesh Acharjee, Ezgi Özkurt   +4 more
wiley   +1 more source