Results 31 to 40 of about 7,272,006 (336)

Indirect Spectrophotometric Determination of Niclosamide in Pharmaceutical Preparations [PDF]

مجلة التربية والعلم, 2018
A simple and sensitive indirect spectrophotometric method is developed for the determination of niclosamide in pharmaceutical preparations. The method is based on the oxidation of reduced form of niclosamide with iron ( III ) in acidic medium, then the ...
Nabeel S. Othman, Saad H. Sultan
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

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

The Effectiveness of Teachers' Use of Demonstrations for Enhancing Students' Understanding of and Attitudes to Learning the Oxidation-Reduction Concept

, 2017
Background:In this study we explored whether the use of teachers' demonstrations significantly improves students’ understanding of redox reactions compared with control group counterparts who were not exposed to the demonstrations.Material and methods ...
A. Basheer, M. Hugerat, Naji Kortam, Avi Hofstein   +3 more
semanticscholar   +1 more source

Changes in Sperm Glutathione and Glutathione Redox States Correlate to Poor Sperm Qualitative Measures

Reproductive Medicine
Background/Objectives: In the past 50 years, human reproductive capacity has steadily declined with elusive and idiopathic origins. Amongst theorized causes, oxidative stress has been proposed to directly contribute to male infertility.
Caroline G. Ploeger, Kate Hansen, Ammon Bayles, Adriana Burger, Jason Hansen, Timothy Jenkins   +5 more
doaj   +1 more source

Development and implementation of a case study assessment using biobased 5-hydroxymethylfurfural to teach redox reactions in undergraduate organic courses

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

Oxidation-reduction equations [PDF]

Journal of Chemical Education, 1930
W. Meldrum
openaire   +2 more sources

FoxO1 signaling in B cell malignancies and its therapeutic targeting

FEBS Letters, EarlyView.
FoxO1 has context‐specific tumor suppressor or oncogenic character in myeloid and B cell malignancies. This includes tumor‐promoting properties such as stemness maintenance and DNA damage tolerance in acute leukemias, or regulation of cell proliferation and survival, or migration in mature B cell malignancies.
Krystof Hlavac, Petra Pavelkova, Laura Ondrisova, Marek Mraz   +3 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, Tadayoshi eKanao, Sabrina eHedrich   +2 more
doaj   +1 more source

The immunological interface: dendritic cells as key regulators in metabolic dysfunction‐associated steatotic liver disease

FEBS Letters, EarlyView.
Metabolic dysfunction‐associated steatotic liver disease (MASLD) affects nearly one‐third of the global population and poses a significant risk of progression to cirrhosis or liver cancer. Here, we discuss the roles of hepatic dendritic cell subtypes in MASLD, highlighting their distinct contributions to disease initiation and progression, and their ...
Camilla Klaimi, WanTing Kong, Camille Blériot, Joel T. Haas   +3 more
wiley   +1 more source