Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Curve Equations01:17

Curve Equations

425
Curves are essential geometric elements characterized by tangent distance, chord length, middle ordinate, and total arc length. These measurements are crucial in understanding a curve's geometric and spatial properties and are defined by the relationship between its radius and its central angle.The tangent distance (T) refers to the straight-line measurement from the intersection point of two tangents to either the start or end of the curve. This distance is influenced by the curve's radius (R)...
425
Horizontal Curve: Problem Solving01:03

Horizontal Curve: Problem Solving

453
A horizontal curve is characterized by its radius, intersection angle, and stationing of key points. In this case, the radius is 400 meters, and the angle of intersection is 30 degrees, with the station of the point of curvature (P.C.) at 0 + 150 meters. The goal is to determine the station values at the point of intersection (P.I.), point of tangency (P.T.), and midpoint of the curve, as well as the length of the long chord.The process begins with calculating the tangent distance (T) and the...
453
Guidelines for Sketching a Curve01:23

Guidelines for Sketching a Curve

197
Curve sketching is a systematic method for understanding the overall behavior of a function by analyzing its key mathematical features. A function defines a curve on the coordinate plane, where the horizontal axis represents the input variable and the vertical axis represents the output. The process begins by determining the domain, which specifies the set of input values for which the function is defined and establishes the horizontal extent of the graph.Intercepts with the horizontal and...
197
Introduction to Horizontal Curves01:19

Introduction to Horizontal Curves

884
Horizontal curves are essential in highway and railroad design, ensuring smooth and safe transitions between straight path segments, or tangents. These curves allow vehicles to maintain speed without abrupt changes, minimizing accidents and improving travel efficiency.A horizontal curve is typically defined by its geometric relationship to two tangents that meet at an intersection point (P.I.), where a simple curve is introduced to connect them. The back tangent refers to the initial tangent...
884
Tangent to a Curve01:30

Tangent to a Curve

396
The graph of a function where each output is the square of the input creates a smooth curve that bends upward, becoming steeper as one moves further from the center. At any chosen position along this curve, the curve reaches a certain height depending on the input value. This position can be a reference for analyzing how the curve behaves in its immediate vicinity.To understand the change in the curve near a particular position, imagine selecting another point slightly ahead along the curve.
396
Curve Sketching and Derivatives01:22

Curve Sketching and Derivatives

132
Understanding the behavior of a function through its first and second derivatives is essential for analyzing its graph. Derivatives provide insight into where a function increases or decreases, where it attains local maxima or minima, and how its curvature behaves across different intervals.The first derivative of a function reveals the slope of the tangent line at any given point. Points where the derivative is zero or undefined are considered critical, as they often indicate potential extrema...
132

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Cost-effectiveness of immediate septoplasty versus medical management with the option for delayed septoplasty for nasal airways obstruction: a multicentre, open-label, randomised controlled trial.

BMJ open·2026
Same author

Towards high-quality and timely interim analyses in adaptive trials: a scoping review of best practice and evidence gaps.

Trials·2026
Same author

Severe lactic acidosis associated with oral linezolid.

Drug and therapeutics bulletin·2025
Same author

Clinical predictors of flare and drug-free remission in rheumatoid arthritis: preliminary results from the prospective BIO-FLARE experimental medicine study.

BMJ open·2025
Same author

Mechanisms and outcomes of a very low intensity intervention to improve parental acknowledgement and understanding of childhood overweight/obesity, embedded in the National Child Measurement Programme: A sub-study within a large cluster Randomized Controlled Trial (MapMe2).

British journal of health psychology·2025
Same author

Trial of alginates in throat symptoms: protocol for a pragmatic, multicentre, placebo controlled, double blind, parallel, randomised controlled trial of liquid alginate (Gaviscon Advance) for the treatment of persistent throat symptoms.

BMJ open·2025

Related Experiment Video

Updated: Mar 6, 2026

Quantifying Fibrillar Collagen Organization with Curvelet Transform-Based Tools
07:58

Quantifying Fibrillar Collagen Organization with Curvelet Transform-Based Tools

Published on: November 11, 2020

6.9K

What is an ROC curve?

Zhe Hui Hoo1,2, Jane Candlish1, Dawn Teare1

  • 1School of Health and Related Research (ScHARR), University of Sheffield, Sheffield, UK.

Emergency Medicine Journal : EMJ
|March 18, 2017
PubMed
Summary
This summary is machine-generated.

This study introduces the Troponin-only Manchester Acute Coronary Syndromes (T-MACS) decision aid for identifying acute coronary syndromes (ACS) in emergency departments. T-MACS offers improved diagnostic accuracy using a single biomarker, high-sensitivity cardiac troponin T (hs-cTnT).

Area of Science:

  • Emergency Medicine
  • Cardiology
  • Diagnostic Test Evaluation
Keywords:
ROC curvediagnostic accuracy

More Related Videos

Expedited Radiation Biodosimetry by Automated Dicentric Chromosome Identification ADCI and Dose Estimation
10:33

Expedited Radiation Biodosimetry by Automated Dicentric Chromosome Identification ADCI and Dose Estimation

Published on: September 4, 2017

16.7K
Author Spotlight: Enhancing Accuracy and Reproducibility in Whole Bone Bending Tests
04:20

Author Spotlight: Enhancing Accuracy and Reproducibility in Whole Bone Bending Tests

Published on: September 1, 2023

1.5K

Related Experiment Videos

Last Updated: Mar 6, 2026

Quantifying Fibrillar Collagen Organization with Curvelet Transform-Based Tools
07:58

Quantifying Fibrillar Collagen Organization with Curvelet Transform-Based Tools

Published on: November 11, 2020

6.9K
Expedited Radiation Biodosimetry by Automated Dicentric Chromosome Identification ADCI and Dose Estimation
10:33

Expedited Radiation Biodosimetry by Automated Dicentric Chromosome Identification ADCI and Dose Estimation

Published on: September 4, 2017

16.7K
Author Spotlight: Enhancing Accuracy and Reproducibility in Whole Bone Bending Tests
04:20

Author Spotlight: Enhancing Accuracy and Reproducibility in Whole Bone Bending Tests

Published on: September 1, 2023

1.5K

Background:

  • Acute coronary syndromes (ACS) require rapid and accurate diagnosis in the emergency department (ED).
  • Existing decision aids, like the Manchester Acute Coronary Syndromes (MACS) model, utilize clinical variables and biomarkers.
  • The MACS model's reliance on heart-type fatty acid binding protein (H-FABP), a less common biomarker, prompted the development of a revised tool.