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

What Are Outliers?01:12

What Are Outliers?

5.1K
Outliers are observed data points that are far from the least squares line. They have unusual values and need to be examined carefully. Though an outlier may result from erroneous data, at other times, it may hold valuable information about the population under study and should be included in the data. Hence, it is crucial to examine what causes a data point to be an outlier.
The z score is used to find outliers or unusual values. It should be noted that any values beyond -2 and +2 are...
5.1K
Outliers and Influential Points01:08

Outliers and Influential Points

6.3K
An outlier is an observation of data that does not fit the rest of the data. It is sometimes called an extreme value. When you graph an outlier, it will appear not to fit the pattern of the graph. Some outliers are due to mistakes (for example, writing down 50 instead of 500), while others may indicate that something unusual is happening. Outliers are present far from the least squares line in the vertical direction. They have large "errors," where the "error" or residual is the...
6.3K
Quantifying and Rejecting Outliers: The Grubbs Test01:02

Quantifying and Rejecting Outliers: The Grubbs Test

4.1K
Sometimes, a data set can have a recorded numerical observation that greatly  deviates from the rest of the data. Assuming that the data is normally distributed, a statistical method called the Grubbs test can be used to determine whether the observation is truly an outlier.  To perform a two-tailed Grubbs test, first, calculate the absolute difference between the outlier and the mean. Then, calculate the ratio between this difference and the standard deviation of the sample. This...
4.1K
Constant Volume Calorimetry02:41

Constant Volume Calorimetry

30.8K
Calorimeters are useful to determine the heat released or absorbed by a chemical reaction. Coffee cup calorimeters are designed to operate at constant (atmospheric) pressure and are convenient to measure heat flow (or enthalpy change) accompanying processes that occur in solution at constant pressure. A different type of calorimeter that operates at constant volume, colloquially known as a bomb calorimeter, is used to measure the energy produced by reactions that yield large amounts of heat and...
30.8K
Volume of Distribution01:20

Volume of Distribution

1.3K
The apparent volume of distribution (Vd) is a crucial pharmacokinetic parameter representing the hypothetical body fluid volume into which a drug disperses. It is calculated based on the total amount of drug in the body (estimated from the administered dose and bioavailability) divided by the plasma drug concentration. The total amount of drug in the body does not directly refer to the dose given but is derived by accounting for absorption, distribution, metabolism, and excretion processes.
1.3K
Problem Solving: Volume01:13

Problem Solving: Volume

71
The volume of a fuel tank mounted on the wing of a jet aircraft can be modeled using the concept of solids of revolution. In this case, the tank is formed by rotating a two-dimensional region, defined by a mathematical function, about the x-axis. The region extends along the axis from zero to two meters, and the resulting three-dimensional shape is symmetric about the axis of rotation. Because the boundary curve lies directly against the axis, the disk method is an appropriate technique for...
71

You might also read

Related Articles

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

Sort by
Same author

Sentinel lymph node biopsy may no longer be a critical component of melanoma management.

Journal of the European Academy of Dermatology and Venereology : JEADV·2024
Same author

BAUSSS biomarker further validated as a key risk staging tool for patients with primary melanoma.

Journal of the European Academy of Dermatology and Venereology : JEADV·2024
Same author

Sentinel lymph node biopsy is unreliable in predicting melanoma mortality for both younger and older patients.

Journal of the European Academy of Dermatology and Venereology : JEADV·2024
Same author

Multivariate logistic regression of risk factors for surgical site infection following Mohs surgery.

The Australasian journal of dermatology·2020

Related Experiment Video

Updated: Feb 3, 2026

Lipidico Injection Protocol for Serial Crystallography Measurements at the Australian Synchrotron
07:28

Lipidico Injection Protocol for Serial Crystallography Measurements at the Australian Synchrotron

Published on: September 23, 2020

3.7K

Volume outlier benchmark proposal for Australian Mohs surgery.

Harvey Ronald Smith1

  • 1Oxford Dermatology, Perth, Western Australia, Australia.

The Australasian Journal of Dermatology
|October 25, 2018
PubMed
Summary

Peer comparison of Australian Mohs surgery data identified practice volume outliers. Higher volume practices correlated with simpler surgical sites, suggesting reflection can improve Mohs surgery quality.

Keywords:
Mohsdataoutlier

More Related Videos

Endoscopic Cholesteatoma Surgery
08:47

Endoscopic Cholesteatoma Surgery

Published on: January 19, 2022

13.0K
Author Spotlight: Revolutionizing Remote Surgery with Augmented Reality and Robotics for Enhanced Precision and Accessibility
07:46

Author Spotlight: Revolutionizing Remote Surgery with Augmented Reality and Robotics for Enhanced Precision and Accessibility

Published on: August 9, 2024

1.2K

Related Experiment Videos

Last Updated: Feb 3, 2026

Lipidico Injection Protocol for Serial Crystallography Measurements at the Australian Synchrotron
07:28

Lipidico Injection Protocol for Serial Crystallography Measurements at the Australian Synchrotron

Published on: September 23, 2020

3.7K
Endoscopic Cholesteatoma Surgery
08:47

Endoscopic Cholesteatoma Surgery

Published on: January 19, 2022

13.0K
Author Spotlight: Revolutionizing Remote Surgery with Augmented Reality and Robotics for Enhanced Precision and Accessibility
07:46

Author Spotlight: Revolutionizing Remote Surgery with Augmented Reality and Robotics for Enhanced Precision and Accessibility

Published on: August 9, 2024

1.2K

Area of Science:

  • Dermatology
  • Surgical Oncology
  • Health Services Research

Background:

  • Mohs surgery is a specialized technique for skin cancer removal.
  • Establishing benchmarks for surgical volume is crucial for quality assurance.
  • Variations in surgical practice may impact patient outcomes and resource allocation.

Purpose of the Study:

  • To define volume outliers in Mohs surgery using peer-derived data.
  • To establish a benchmark for quality improvement in Mohs surgical practices.
  • To investigate the relationship between surgical volume and anatomical complexity.

Main Methods:

  • Analysis of peer-derived Australian Mohs surgical case data.
  • Identification of volume outliers based on established benchmarks.
  • Correlation analysis between surgical volume and anatomical site complexity.

Main Results:

  • Peer data successfully defined volume outliers and a quality improvement benchmark.
  • Higher surgical volume practices were associated with less complex anatomical locations.
  • Individual practice reflection against peer data may decrease volume outliers.

Conclusions:

  • Peer benchmarking is effective for identifying Mohs surgery volume outliers.
  • Surgical volume and anatomical complexity are inversely related.
  • Promoting practice reflection can enhance the quality and efficiency of Mohs surgery.