Results 31 to 40 of about 102,832 (285)
Oxidation and Reduction of tert-Butylnitrosoacetylene
CHIMIA, 1975 Tert-butylnitrosoacetylene [I] can be oxidized to the corresponding nitroacetylene [II] in spite of the low temperature rearrangement of [I] to the isomeric pivaloylcyanide [III].
Jean-Claude Motte, H.G. Viehe
doaj +1 more source
دراسة تعیین درجة حرارة حرق بعض الأوانی الفخاریة کأساس علمی لتشخیص مظاهرتلفها ( تل آثارالسمارة – عصرماقبل الأسرات - دراسة حالة ) [PDF]
Journal of General Union of Arab Archaeologists, 2016 Firing temperature degree of some pottery has been determined from Tel al-samara in Dakahlia through their examination and analysis by polarized microscope "PLM", scanning electron microscope SEM,X-ray diffraction XRD and thermal analysis TGA where the ...
Dr.Walid Kamel Ali Elghareb
doaj +1 more source
Some of the oxidation-reduction properties of the chorionic gonadotropic hormone [PDF]
, 1941 Gurin, Bachman, and Wilson (1-3) have recently made important contributions to our knowledge of the chemical nature of the gonadotropic hormone of pregnancy urine.
Bowman, Donald E.
core
Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
FEBS Letters, EarlyView.Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley +1 more source
Mapping the evolution of mitochondrial complex I through structural variation
FEBS Letters, EarlyView.Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin +2 more
wiley +1 more source
Redox transformations of iron at extremely low pH: fundamental and applied aspects
Frontiers in Microbiology, 2012 Many different species of acidophilic prokaryotes, widely distributed within the domains Bacteria and Archaea, can catalyze the dissimilatory oxidation of ferrous iron or reduction of ferric iron, or can do both.
D. Barrie eJohnson +2 more
doaj +1 more source
Green Chemistry Letters and Reviews, 2023 This paper addresses the development and evaluation of a case study designed to introduce both the core chemistry concepts of oxidation and reduction reactions as well as green chemistry within the undergraduate organic chemistry curriculum.
Krystal Grieger, Alexey Leontyev
doaj +1 more source
The role of the enzyme in the succinate-enzyme-fumarate equilibrium [PDF]
, 1931 The following is an account of an investigation into the role of the enzyme in the succinate-enzyme-fumarate equilibrium. The method consisted in the comparison of the value of the free energy change in this reaction obtained from oxidation-reduction ...
Borsook, Henry, Schott, Hermann F.
core
Measurement of the ground-state distributions in bistable mechanically interlocked molecules using slow scan rate cyclic voltammetry [PDF]
, 2011 In donor–acceptor mechanically interlocked molecules that exhibit bistability, the relative populations of the translational isomers—present, for example, in a bistable [2]rotaxane, as well as in a couple of bistable [2]catenanes of the donor–acceptor ...
Barin, Gokhan +10 more
core +2 more sources
FEBS Letters, EarlyView.Angiotensin II (AngII), a neuropeptide, interacts with amyloid‐β (Aβ), a key player in Alzheimer's disease. This study reveals that AngII reduces Aβ aggregation and membrane disruption in vitro. Biophysical assays and molecular modeling suggest AngII binds disordered Aβ forms, potentially modulating early amyloidogenic events and contributing to ...
Mohsen Habibnia +5 more
wiley +1 more source