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

Zener Diodes01:16

Zener Diodes

Zener diodes are specialized semiconductor devices designed to operate in the reverse breakdown region, where they allow current to flow into the cathode, making it positive relative to the anode. This reverse operation distinguishes Zener diodes from conventional diodes and enables their use in various applications, most notably as voltage regulators. One of the defining characteristics of Zener diodes is their nearly vertical I-V (current-voltage) characteristic curve above a certain...
Diazonium Group Substitution with Halogens and Cyanide: Sandmeyer and Schiemann Reactions01:20

Diazonium Group Substitution with Halogens and Cyanide: Sandmeyer and Schiemann Reactions

Arenediazonium substitution reactions occur when the diazonium group is substituted by various functional groups such as halides, hydroxyl, nitrile, etc. For instance, arenediazonium salts react with copper(I) salts of chloride, bromide, or cyanide to form corresponding aryl chlorides, bromides, and nitriles. These reactions are named Sandmeyer reactions. Although the mechanism of this reaction is complicated, as illustrated in Figure 1, they are believed to progress via an aryl copper...
Definition of z-Transform01:26

Definition of z-Transform

The z-transform is a powerful mathematical tool used in the analysis of discrete-time signals and systems. It is an essential analytical tool, analogous to the Laplace transform used in continuous-time systems. It plays a crucial role in the analysis of signals and systems, complementing the discrete-time Fourier transform. Both the z-transform and the Laplace transform convert differential or difference equations into algebraic equations, simplifying the process of solving complex problems.
Inverse z-Transform by Partial Fraction Expansion01:20

Inverse z-Transform by Partial Fraction Expansion

The inverse z-transform is a crucial technique for converting a function from its z-domain representation back to the time domain. One effective method for finding the inverse z-transform is the Partial Fraction Method, which involves decomposing a function into simpler fractions with distinct coefficients. These fractions correspond to known z-transform pairs, facilitating the inverse transformation process.
To begin the process, the poles of the function are identified and the function is...
Introduction to z Scores01:06

Introduction to z Scores

A z score (or standardized value) is measured in units of the standard deviation. It tells you how many standard deviations the value x is above (to the right of) or below (to the left of) the mean, μ. Values of x that are larger than the mean have positive z scores, and values of x that are smaller than the mean have negative z scores. If x equals the mean, then x has a zero z score. It is important to note that the mean of the z scores is zero, and the standard deviation is one.
z scores help...
Introduction to z Scores01:05

Introduction to z Scores

A z score (or standardized value) is measured in units of the standard deviation. It indicates how many standard deviations the value x is above (to the right of) or below (to the left of) the mean, μ. Values of x that are larger than the mean have positive z scores, and values of x that are smaller than the mean have negative z scores. If x equals the mean, then x has a zero z score. It is important to note that the mean of the z scores is zero, and the standard deviation is one.
z scores help...

You might also read

Related Articles

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

Sort by
Same author

Thermally Controlled Chiral Supramolecular Polymorphism in Water.

Angewandte Chemie (International ed. in English)·2026
Same author

Solvent Chain Length Directed Supramolecular Polymorphism.

Angewandte Chemie (International ed. in English)·2025
Same author

Controlling Molecular Packing in Aqueous Metallosupramolecular Self-assembly by Ligand Geometry.

Precision chemistry·2025
Same author

Size-Controlled Self-Assembly for Bimodal In Vivo Imaging.

Angewandte Chemie (International ed. in English)·2025
Same author

Coaxial Helices in Chiral Supramolecular Aggregates from Highly Hindered Chiral Allenes.

Angewandte Chemie (International ed. in English)·2024
Same author

Pathway-dependent Metallosupramolecular Polymerization Regulated by Ligand Geometry.

Chemistry (Weinheim an der Bergstrasse, Germany)·2024
Same journal

A Domino-Synthesized Dicoordinate Copper(I) Bis-imidazopyridine Complex Triggering Cuproptosis/Ferroptosis for Enhanced Cancer Immunotherapy.

Angewandte Chemie (International ed. in English)·2026
Same journal

Mirror-Symmetric Organic Two-Dimensional Crystals for Alternative Photon Transport Pathways.

Angewandte Chemie (International ed. in English)·2026
Same journal

Cobalt-Catalyzed Migratory E-Selective Asymmetric Aza-Nozaki-Hiyama-Kishi Coupling.

Angewandte Chemie (International ed. in English)·2026
Same journal

Facile Synthesis of α,ω-Dihydroxy Telechelic Macromonomers From Ethylene and α-Olefins for Recyclable Alternating Block Copolymers.

Angewandte Chemie (International ed. in English)·2026
Same journal

Multi-Atom Sub-Nanometer Assemblies on Interpenetrating Multi-Chambered N/C Nanospheres.

Angewandte Chemie (International ed. in English)·2026
Same journal

A Synergistic C<sub>2+</sub> Alcohols/Olefins-Intermediated Pathway Boosts CO<sub>2</sub> Hydrogenation to Aromatics.

Angewandte Chemie (International ed. in English)·2026
See all related articles

Related Experiment Video

Updated: Jul 3, 2026

Clinical Application of Phase Angle and BIVA Z-Score Analyses in Patients Admitted to an Emergency Department with Acute Heart Failure
04:05

Clinical Application of Phase Angle and BIVA Z-Score Analyses in Patients Admitted to an Emergency Department with Acute Heart Failure

Published on: June 30, 2023

Zulema Fernández.

Zulema Fernández

    Angewandte Chemie (International Ed. in English)
    |July 2, 2026
    PubMed
    Summary
    This summary is machine-generated.

    This profile introduces chemist Zulema Fernández, highlighting her passion for molecular complexity and favorite reactions like the Sonogashira cross-coupling. Discover her journey in the field of chemistry.

    More Related Videos

    Modeling Hypoxia/Reoxygenation Injury in Proximal Tubular Epithelial Cells
    06:23

    Modeling Hypoxia/Reoxygenation Injury in Proximal Tubular Epithelial Cells

    Published on: November 21, 2025

    A Simple Fecal Flotation Method for Diagnosing Zoonotic Nematodes Under Field and Laboratory Conditions
    03:46

    A Simple Fecal Flotation Method for Diagnosing Zoonotic Nematodes Under Field and Laboratory Conditions

    Published on: December 15, 2023

    Related Experiment Videos

    Last Updated: Jul 3, 2026

    Clinical Application of Phase Angle and BIVA Z-Score Analyses in Patients Admitted to an Emergency Department with Acute Heart Failure
    04:05

    Clinical Application of Phase Angle and BIVA Z-Score Analyses in Patients Admitted to an Emergency Department with Acute Heart Failure

    Published on: June 30, 2023

    Modeling Hypoxia/Reoxygenation Injury in Proximal Tubular Epithelial Cells
    06:23

    Modeling Hypoxia/Reoxygenation Injury in Proximal Tubular Epithelial Cells

    Published on: November 21, 2025

    A Simple Fecal Flotation Method for Diagnosing Zoonotic Nematodes Under Field and Laboratory Conditions
    03:46

    A Simple Fecal Flotation Method for Diagnosing Zoonotic Nematodes Under Field and Laboratory Conditions

    Published on: December 15, 2023

    Area of Science:

    • Organic Chemistry
    • Synthetic Chemistry

    Background:

    • Zulema Fernández's profile details her perspective on the enjoyment of chemistry.
    • She finds satisfaction in constructing complex molecules from simpler precursors.

    Purpose of the Study:

    • To introduce Zulema Fernández and her scientific interests.
    • To highlight her appreciation for specific chemical reactions, such as cross-coupling reactions.

    Main Methods:

    • Profile feature
    • Personal narrative

    Main Results:

    • Zulema Fernández expresses enthusiasm for organic synthesis.
    • The Sonogashira cross-coupling is identified as a favored reaction.

    Conclusions:

    • The profile provides insight into Zulema Fernández's passion for chemistry.
    • It underscores the creative and constructive aspects of molecular science.