Results 91 to 100 of about 7,611,642 (299)

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

open access: yesFEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata   +13 more
wiley   +1 more source

From Theory to Practice: Exploring the Chi-Squared Goodness-of-Fit Test for Poisson Distributions with Car Parking Data

open access: yesJournal of Statistical Theory and Applications (JSTA)
This study investigates the impact of design decisions on the outcomes of chi-squared tests when applied to Poisson distributions, using the practical example of arrivals in a parking garage. Through a combination of experiments and simulations, we found
Thomas Müller, Dirk Schweim
doaj   +1 more source

Time‐restricted feeding prior to Mycobacterium tuberculosis infection reduces tissue CD4+ T cells with limited impact on bacterial clearance

open access: yesFEBS Open Bio, EarlyView.
Time‐restricted feeding (TRF) in mice increased liver fatty acid oxidation and decreased fatty acid biosynthesis. These alterations persisted when TRF was discontinued and the host was infected with Mycobacterium tuberculosis. Pre‐exposure to TRF did not alter tissue (lung and spleen) mycobacterial burden but significantly reduced CD3+ T cells in lungs
Ashish Gupta   +7 more
wiley   +1 more source

Exercise perceptions, behaviours and barriers (* = significant chi-squared test).

open access: yes
Exercise perceptions, behaviours and barriers (* = significant chi-squared test).
Johanne Brooks-Warburton (18319703)   +2 more
core   +2 more sources

Comparison of the Predictive Values of Multiple Binary Diagnostic Tests in the Presence of Ignorable Missing Data

open access: yesRevstat Statistical Journal, 2017
The comparison of the predictive values of binary diagnostic tests is an important topic in the study of statistical methods applied to medical diagnosis. In this article, we study a global hypothesis test to simultaneously compare the predictive values
Ana Eugenia Marín-Jimenéz   +1 more
doaj   +1 more source

The chi-square test for trend [PDF]

open access: yesAmerican Journal of Orthodontics and Dentofacial Orthopedics, 2016
Koletsi D, Pandis N
openaire   +3 more sources

The crystal structure of the Borrelia burgdorferi nicotinamidase BBE22 resolves a long‐standing annotation error

open access: yesFEBS Open Bio, EarlyView.
The crystal structure of Borrelia burgdorferi nicotinamidase (PncA/BBE22) reveals the correct full‐length protein initiated from a non‐canonical AUU start codon. The structure validates previous biochemical findings and resolves a long‐standing annotation error, demonstrating that the truncated database sequence is structurally incompatible with the ...
Kalvis Brangulis
wiley   +1 more source

Guiding AlphaFold to predict how Munc13‐1 opens Syntaxin‐1

open access: yesFEBS Open Bio, EarlyView.
The syntaxin‐1 Habc‐domain (orange), linker (pink) and SNARE motif (yellow) form a closed conformation that binds to Munc18‐1 (violet) and is opened by the Munc13‐1 MUN domain (cyan) to form the SNARE complex that triggers neurotransmitter release.
Madhurima Chattopadhyay   +2 more
wiley   +1 more source

Calculating chi-squared test statistics for weighted histograms

open access: yes, 2018
A goodness of fit test statistic, in particular the chi-squared test, is commonly used to confirm whether histograms differ from a theoretical distribution. The chi-squared test is also often used to compare two histograms, such as histograms produced by
Helgi Halldórsson 1994-
core   +1 more source

Factors Influencing Flight Delays of a European Airline

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2017
The main aim of the paper was to investigate factors influencing flight delays of a European airline. Besides the identification and analysis of those factors the paper offers possible suggestions on how to eliminate the delays.
Martina Zámková   +2 more
doaj   +1 more source

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