Results 111 to 120 of about 6,042,646 (342)

Determination of Iron in Blood Serum by Spectrophotometric and Atomic Absorption Methods as a Comparative Study

open access: yesÇukurova Üniversitesi Tıp Fakültesi Dergisi, 2013
Context: Iron is an essential element for most life on Earth, including human beings and its accurate determination is extremely important. A simple and sensitive spectrophotometric method has been used for the determination of iron concentration in ...
Usama Abu Mohsen   +2 more
doaj  

Isolation and characterization of ardicrenin from Ardisia crenata Sims

open access: yesPlant, Soil and Environment, 2009
A new, effective and economical method to extract ardicrenin from Ardisia crenata Sims collected in the Wolong natural reserve, Sichuan, China, is established.
Yuan Ma   +3 more
doaj   +1 more source

An isoform of 14‐3‐3 protein regulates transbilayer lipid movement at the plasma membrane

open access: yesFEBS Letters, EarlyView.
Loss of 14‐3‐3ζ in CHO cells confers resistance to exogenous phosphatidylserine (PS) and impairs endocytosis‐independent inward flip‐flop of fluorescent PS at the plasma membrane. RNAi‐mediated knockdown reproduces this defect, while no additive effect is seen in ATP11C‐deficient cells.
Akiko Yamaji‐Hasegawa   +3 more
wiley   +1 more source

Toward a Sovereign Afghanistan

open access: yes, 2011
Focusing on four key issue areas relevant to the immediate and near future of Afghanistan including governance and economy, identity, reconciliation and reintegration, and the region and macro region, the Liechtenstein Institute on Self-Determination ...
Liechtenstein Institute on Self-Determination
core  

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

open access: yesFEBS 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

Grand Strategy and Self-Determination

open access: yes, 2015
This report is the chair's summary from the colloquium, "Grand Strategy and Self-Determination," sponsored by the Liechtenstein Institute on Self-Determination at Princeton University, November 19-20, 2014.The notions of “grand strategy” and “self ...
Liechtenstein Institute on Self-Determination
core  

Spectrophotometric determination of fe(iii) with tiron in the presence of cationic surfactant and its application for the determination of iron in al-alloys and cu-based alloys

open access: yes, 1994
A sensitive spectrophotometric method for the determination of iron with tiron and a cationic surfactant, cetylpyridinium chloride, at pH 5.6 is reported.
Tiwari, M   +3 more
core   +1 more source

Application of gas chromatography for determination of 2-amino-4,6-dinitrophenol and evaluation of its stability in biological material

open access: yesУчёные записки Казанского университета: Серия Естественные науки
2-Amino-4,6-dinitrophenol (2-A-4,6-DNP), or picramic acid, is widely used as an intermediate in organic synthesis, a dye in hair coloring products, an agricultural fungicide, and an explosive. Similar to other related compounds (2,4,6-trinitrophenol (2,4,
V. K. Shormanov   +3 more
doaj   +1 more source

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

open access: yesFEBS 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   +3 more
wiley   +1 more source

Biophysical approaches for studying viral entry

open access: yesFEBS 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

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