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Related Concept Videos

Rules for Significant Figures01:44

Rules for Significant Figures

In any measurement, the precision of the measuring tool is an essential factor. An ordinary ruler, for example, can measure length to the closest millimeter; a caliper, on the other hand, can measure length to the nearest 0.01 mm. As a result, the caliper is a more precise measurement tool because it can measure extremely minute changes in length. The measurements will be more accurate if the measuring tool is more precise.
It should be emphasized that when we represent measured values, the...
Uncertainty in Measurement: Significant Figures03:34

Uncertainty in Measurement: Significant Figures

All the digits in a measurement, including the uncertain last digit, are called significant figures or significant digits. Note that zero may be a measured value; for example, if a scale that shows weight to the nearest pound reads “140,” then the 1 (hundreds), 4 (tens), and 0 (ones) are all significant (measured) values.
Significant Figures in Calculations00:58

Significant Figures in Calculations

Uncertainty in measurements can be avoided by reporting the results of a calculation with the correct number of significant figures. This can be determined by the following rules for rounding numbers:
Design Example01:23

Design Example

The innovation of touch-tone telephony revolutionized the telecommunications industry by replacing the traditional rotary dial with a dual-tone multi-frequency (DTMF) signaling system. This system uses a matrix-style keypad with buttons arranged in four rows and three columns, creating 12 distinct signals each assigned to a pair of frequencies. Each button press results in a simultaneous generation of two sinusoidal tones – one from a low-frequency group (697 to 941 Hz) and one from a...
Numerical Calculations01:24

Numerical Calculations

In engineering applications, the representation of the numerical value is critical. Presenting or reporting the answer is one of the essential parts of engineering practices. Numerical calculations are performed using handheld calculators or computers since numerically accurate answers are always preferred.
The solution to a problem is obtained using different methods. While manually solving algebraic symbols is one of the most common methods, the graphical method is often preferred. Computers...
Rules of Significant Figures01:44

Rules of Significant Figures

In any measurement, the precision of the measuring tool is an essential factor. An ordinary ruler, for example, can measure length to the closest millimeter; a caliper, on the other hand, can measure length to the nearest 0.01 mm. As a result, the caliper is a more precise measurement tool because it can measure extremely minute changes in length. The measurements will be more accurate if the measuring tool is more precise.
It should be emphasized that when we represent measured values, the...

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Related Experiment Video

Updated: Jun 6, 2026

Generating Strictly Controlled Stimuli for Figure Recognition Experiments
05:39

Generating Strictly Controlled Stimuli for Figure Recognition Experiments

Published on: March 18, 2019

[Trigger digits].

S Durand1, O Daunois, G Gaujoux

  • 1Groupe Main Provence, clinique Axium, 42 avenue du Maréchal-de-Lattre-de-Tassigny, Aix-en-Provence, France. sebastien.durand@utc.fr

Chirurgie De La Main
|November 12, 2010
PubMed
Summary
This summary is machine-generated.

Trigger finger, caused by flexor tendon and A1 pulley size mismatch, leads to finger pain and stiffness. Treatment options like splinting, injections, or surgery depend on the condition's severity.

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Area of Science:

  • Orthopedics
  • Hand Surgery
  • Musculoskeletal Disorders

Context:

  • Trigger finger, or stenosing tenosynovitis, is a common condition affecting the hand.
  • It involves a size discrepancy between the flexor tendon and the A1 pulley.

Purpose:

  • To describe the common causes, differential diagnoses, and treatment options for trigger finger.
  • To highlight the importance of clinical presentation in guiding treatment decisions.

Summary:

  • Trigger finger results from flexor tendon and A1 pulley size mismatch, causing pain, clicking, catching, and limited motion.
  • Diagnosis is typically straightforward, but conditions like extensor apparatus instability and locked metacarpophalangeal joints must be ruled out.
  • Treatment modalities include splinting, corticosteroid injections, and surgical intervention, with the choice depending on the clinical presentation.

Impact:

  • Provides a concise overview for hand surgeons and clinicians managing trigger finger.
  • Emphasizes diagnostic considerations and tailored treatment approaches.
  • Aids in understanding the etiology and management of this prevalent hand condition.