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Related Concept Videos

Mass Analyzers: Overview01:13

Mass Analyzers: Overview

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The mass analyzer is a crucial component of the mass spectrometer. In the ionization chamber, the vaporized sample is bombarded with a high-energy electron beam to generate a radical cation and further fragment into neutral molecules, radicals, and cations. A series of negatively charged accelerator plates accelerate the cations into the mass analyzer. The mass analyzer separates ions according to their mass-to-charge (m/z) ratios and then directs them to the detector. The common types of mass...
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Reporter Genes02:11

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Reporter genes are a type of protein-coding gene that are often tagged to a gene of interest. Once inside a target cell, reporter genes usually produce visually identifiable characteristics like fluorescence and luminescence when expressed along with the gene of interest. Thus, reporter genes “report” the presence or absence of genes of interest in an organism, determine the gene expression pattern, or track the physical location of a DNA segment or protein in the cell.
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When we take repeated measurements on the same or replicated samples, we will observe inconsistencies in the magnitude. These inconsistencies are called errors. To categorize and characterize these results and their errors, the researcher can use statistical analysis to determine the quality of the measurements and/or suitability of the methods.
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Tandem Mass Spectrometry01:21

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Tandem mass spectrometry is a technique that uses multiple mass analyzers in series to obtain a higher selectivity and signal-to-noise ratio for the analyte. Instruments with multiple analyzers separated by an interaction cell enable secondary fragmentation and selected study of the fragment ions.
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Next-generation sequencing technologies have created large genomic databases of a variety of animals and plants. Ever since the human genome project was completed, scientists studied the genome of primates, mammals, and other phylogenetically distant living beings. Such large-scale  studies have provided new insights into the evolutionary relationship between organisms.
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Mass Analyzers: Common Types01:19

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The quadrupole mass analyzer consists of four cylindrical metal rods arranged in a diamond carrying a DC voltage and a radio-frequency AC voltage. The motion of ions through the quadrupole depends on the field strength, causing only ions of a certain m/z to resonate successfully and strike the detector at a given field strength. Though the transmission rate for these analyzers is high, the exact elemental composition of the sample is not determined because of low resolution; however, they are...
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Cross-Modal Multivariate Pattern Analysis
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A Multimodal Analytics Platform for Journalists Analyzing Large-Scale, Heterogeneous Multilingual, and Multimedia

Stefanos Vrochidis1, Anastasia Moumtzidou1, Ilias Gialampoukidis1

  • 1Information Technologies Institute, Centre for Research and Technology Hellas, Thessaloniki, Greece.

Frontiers in Robotics and AI
|January 27, 2021
PubMed
Summary

Journalists can now analyze large, multilingual news data faster with a new platform. It integrates multimodal analytics for automated summarization, translation, and semantic indexing, improving information access and reducing labor.

Keywords:
big datajournalismknowledge extractionmultilingual content analysismultimodal analytics platformsemantic analysis

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Area of Science:

  • Computational linguistics
  • Information science
  • Journalism studies

Background:

  • Journalists and analysts struggle with vast, multilingual datasets.
  • Current methods are time-consuming and costly for data aggregation and analysis.

Purpose of the Study:

  • To present a platform for unified access to multilingual news material.
  • To support journalists in handling large, real-time information streams.
  • To enable context-aware, spatiotemporal, and semantic interpretation of news data.

Main Methods:

  • Developed a platform integrating multimodal analytics techniques.
  • Automated crawling and indexing of multilingual, multimedia information.
  • Implemented automatic summarization, on-demand translation, and concept cloud generation.
  • Utilized semantic integration and indexing with a common representation for web-based search.

Main Results:

  • Platform automatically processes and indexes diverse information streams.
  • Textual content is summarized and translatable.
  • High-level information is extracted for quick inspection.
  • Semantically integrated content is accessible via a search engine.

Conclusions:

  • The platform effectively supports journalists in managing large information volumes.
  • Journalist evaluations indicated high user satisfaction.
  • Automated processes significantly reduce time, labor, and costs in news analysis.