Results 211 to 220 of about 460,650 (247)

On the reversibility of the B1 2r−B1 2s couple in cobalamins

Biochimica et Biophysica Acta (BBA) - General Subjects, 1974
Abstract The cobalt(II)—cobalt(I) interconversion in a number of vitamin B1 2 derivatives was investigated by cyclic voltammetry. Particular attention was focused on the factors determining whether the interconversion is reversible. When the lower axial coordination position is occupied by a strong ligand, such as the benzimidazole nucleotide in ...
Paul G. Swetik, Dennis G. Brown
openaire   +1 more source

To B1 or not to B1... That Is the Question

2010
impatto di prove di certificazione linguistica riferite al CEFR sul sistema ...
openaire   +2 more sources

Conversion of avermectin B1 to 19-epi-avermectin B1

Tetrahedron Letters, 1991
Avermectin B1 (1) has been converted to 19-epi-avermectin B1 (2) in six steps. Analog 2 retains some bioactivity but is substantially less bioactive than 1.
Timothy Blizzard, Lori Bostrom, Gaye Margiatto, Helmut Mrozik, Michael Fisher   +4 more
openaire   +1 more source

Measuring B1 distributions by B1 phase encoding.

Magnetic resonance in medicine, 2017
We propose a method to acquire B1 distribution plots by encoding in B1 instead of image space. Using this method, B1 data is acquired in a different way from traditional spatial B1 mapping, and allows for quick measurement of high dynamic range B1 data.To encode in B1, we acquire multiple projections of a slice, each along the same direction, but using
Kalina V, Jordanova, Dwight G, Nishimura, Adam B, Kerr   +2 more
openaire   +1 more source

Thiamin (Vitamin B1)

1998
At one time, the disease beriberi was believed to be caused by a microorganism or toxin. The first indication of a nutritional aetiology was the virtual elimination of beriberi in the Japanese Navy in 1885, brought about by increasing the proportion of meat and vegetables in the staple rice diet.
openaire   +1 more source

ÖIF Integrationsprüfung B1 vs. ÖSD Zertifikat B1

2021
Österreich ist in europäischen Vergleich das einzige Land, in dem sich die Sprachprüfung und die Prüfung von Wert- und Orientierungswissen zusammen vereinen und als eine Prüfung aufgebaut sind. Außerdem ist es möglich nur bei dem ÖIF die Integrationsprüfung abzulegen.
openaire   +1 more source

[Vitamin B1].

Nihon rinsho. Japanese journal of clinical medicine, 1999
Vitamin B1 (thiamin), taken-up into cells, is converted to thiamin diphosphate (TDP), and TDP acts as a cofactor for several enzymes involving in carbohydrate metabolism. CoA-dependent oxidative decarboxylation of pyruvate is catalyzed by pyruvate dehydrogenase multienzyme complex (PDC) with NAD+ as an electron acceptor in most organisms involving ...
H, Inui, Y, Nakano
openaire   +2 more sources

Mapping cardiac |B1+| field with B1+ prepared imaging

ISMRM Annual Meeting
Cardiac MRI at 3T offers gains in SNR, but is strongly affected by field inhomogeneities, including the transmit field B1+. Mapping |B1+| field around the heart is particularly challenging due to the presence of motion, and few techniques exist for robust imaging.
Paulina Siuryte, Markus Henningsson, Christal van de Steeg-Henzen, Sebastian Weingärtner   +3 more
openaire   +1 more source

B1 and/or B2? That is the question

Headache: The Journal of Head and Face Pain, 2022
William Jeptha, Davenport, Tamara, Pringsheim   +1 more
openaire   +2 more sources

Table B1

2023
Prevalence of lactational oestrus and non-lactational oestrus depending on the ...
openaire   +1 more source