A tug-of-war explains a decades-old question about how bacteria swim

Scientists have uncovered a new explanation for how swimming bacteria change direction, providing fresh insight into one of ...
JournalofAccountancy

Using Excel’s TEXTBEFORE AND TEXTAFTER functions to easily tame messy data

Q. How do the TEXTBEFORE and TEXTAFTER functions in Excel work? A. Excel’s TEXTBEFORE and TEXTAFTER functions allow users to quickly split up text in ways that used to require combinations of ...
Scientific Research Publishing

Schober, P., Boer, C., & Schwarte, L. A. (2018). Correlation Coefficients: Appropriate Use and Interpretation. Anesthesia & Analgesia, 126, 1763-1768.

ABSTRACT: Microbiological contamination of drinking water remains a critical global health concern, contributing to approximately five million deaths annually. In Sub-Saharan Africa, inadequate access ...
eeworldonline

How to use convolution to implement filters: part 4

A windowed sinc function can implement a low-pass filter, and a two-dimensional convolutional filter can blur or sharpen images. In part 3 of this series, we introduced a low-pass filter based on the ...
eeworldonline

How to use convolution to implement filters: part 1

Convolution is used in a variety of signal-processing applications, including time-domain-waveform filtering. In a recent series on the inverse fast Fourier transform (FFT), we concluded with a ...
eLife

An image segmentation method based on the spatial correlation coefficient of Local Moran’s I - identification of A-type potassium channel clusters in the thalamus

Calculation of local Moran’s I in darkfield (a-j) and brightfield (k-t) light micrographs. a, Sizes of convolution matrices with different order (1, 2, 3; orange squares around the central pixel) with ...