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Related Concept Videos

Sign Convention01:30

Sign Convention

When analyzing a beam subjected to various loads, it is crucial to understand the internal forces and moments generated within the structure. These internal forces can be broadly classified into normal forces, shear forces, and bending moments. To determine these forces and moments, we use the method of sections and apply a specific sign convention based on their direction and the side of the section being analyzed.
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Sign Test for Nominal Data01:12

Sign Test for Nominal Data

The sign test is a nonparametric method used to evaluate hypotheses about the median of a single sample or to compare the medians of two related samples. The sign test is particularly useful when dealing with nominal data, which includes distinct categories without an inherent order, such as names, labels, and preferences. Nominal data restricts statistical analysis to evaluating population proportions rather than mean or median values that require continuous data.
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Multiprotein signaling complexes are formed in a dynamic process involving protein-protein interactions at the cytoplasmic domain of transmembrane receptors or enzymatic and non-enzymatic proteins associated with the receptor. These complexes ensure the activation and propagation of intracellular signals that regulate cell functions.
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Introduction to the Sign Test01:10

Introduction to the Sign Test

The sign test is an important tool in nonparametric statistics, offering a straightforward yet effective method for analyzing matched pairs, nominal data, or hypotheses concerning the median of a population. It transforms data points into positive or negative signs, avoiding the need for assumptions about data distribution and instead focusing on the direction of change. It is particularly valuable when data does not conform to the normal distribution requirements of many parametric tests. For...
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Sign Test for Matched Pairs

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Related Experiment Video

Updated: Jun 9, 2026

A Bilingual Computational Workflow for Identifying Potential PLK1 Inhibitors in American Sign Language and English
14:34

A Bilingual Computational Workflow for Identifying Potential PLK1 Inhibitors in American Sign Language and English

Published on: April 3, 2026

Mexican sign language 3D static alphabet dataset.

Homero V Rios-Figueroa1, Candy O Sosa-Jiménez2

  • 1Research Institute in Artificial Intelligence, Veracruzana University, Campus Sur, Calle Paseo Lote II, Sección Segunda 112, Nuevo Xalapa, Xalapa, Veracruz, C.P. 91097, Mexico.

Data in Brief
|June 8, 2026
PubMed
Summary

This study introduces a new dataset for Mexican Sign Language (MSL) recognition, featuring 3D coordinates of 21 static MSL alphabet letters. This resource aims to advance automatic MSL recognition research.

Keywords:
Computer visionGesture recognitionHand gestureMachine learningPattern recognitionSign language

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Last Updated: Jun 9, 2026

A Bilingual Computational Workflow for Identifying Potential PLK1 Inhibitors in American Sign Language and English
14:34

A Bilingual Computational Workflow for Identifying Potential PLK1 Inhibitors in American Sign Language and English

Published on: April 3, 2026

Area of Science:

  • Computer Science
  • Linguistics
  • Human-Computer Interaction

Background:

  • Sign language facilitates communication for the hearing-impaired, with each country having its own variant.
  • Mexican Sign Language (MSL) research and available datasets are scarce, hindering automatic recognition advancements.

Purpose of the Study:

  • To address the lack of data for Mexican Sign Language (MSL) recognition.
  • To create and provide a novel dataset of static MSL alphabet signs.

Main Methods:

  • Collected a dataset of 21 static letters from the MSL alphabet.
  • Recorded 3D surface sensor data, capturing 3D coordinates for each sign.
  • Data acquired from 15 individuals performing each sign once using their right hand.

Main Results:

  • The resulting dataset comprises 315 text files.
  • Each file contains the 3D coordinates of static MSL alphabet letters.
  • The dataset captures detailed spatial information for each sign.

Conclusions:

  • The developed dataset is a valuable resource for MSL automatic recognition research.
  • This contribution aims to stimulate further investigation into MSL processing.
  • Availability of this data is expected to accelerate the development of MSL recognition technologies.