Jove
Visualize
Contáctanos
JoVE
x logofacebook logolinkedin logoyoutube logo
ACERCA DE JoVE
Visión GeneralLiderazgoBlogCentro de Ayuda JoVE
AUTORES
Proceso de PublicaciónConsejo EditorialAlcance y PolíticasRevisión por ParesPreguntas FrecuentesEnviar
BIBLIOTECARIOS
TestimoniosSuscripcionesAccesoRecursosConsejo Asesor de BibliotecasPreguntas Frecuentes
INVESTIGACIÓN
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchivo
EDUCACIÓN
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualCentro de Recursos para ProfesoresSitio de Profesores
Términos y Condiciones de Uso
Política de Privacidad
Políticas

Videos de Conceptos Relacionados

Atomic Force Microscopy01:08

Atomic Force Microscopy

4.0K
Atomic force microscopy (AFM) is a type of scanning probe microscopy that can analyze topographic details of various specimens like ceramics, glass, polymers, and biological samples. AFM offers over 1000 times more resolution than the optical imaging system. Images generated from AFM are three-dimensional surface profiles, offering an advantage over the flat, two-dimensional images from other imaging techniques.
The AFM Probe
The probe is regarded as the heart of any AFM setup and comprises the...
4.0K
First Impression01:09

First Impression

105
First impressions play a crucial role in social perception, shaping how individuals assess others in professional, academic, and interpersonal contexts. Psychological research highlights the significance of cognitive biases, such as the primacy and recency effects, which influence how people interpret and recall information.The Primacy Effect and Cognitive AnchoringThe primacy effect describes the tendency for initial information to impact judgment disproportionately. When individuals encounter...
105
Subatomic Particles03:37

Subatomic Particles

110.1K
Dalton was only partially correct about the particles that make up matter. All matter is composed of atoms, and atoms are composed of three smaller subatomic particles: protons, neutrons, and electrons. These three particles account for the mass and the charge of an atom.
110.1K
Emission Spectra02:39

Emission Spectra

74.7K
When solids, liquids, or condensed gases are heated sufficiently, they radiate some of the excess energy as light. Photons produced in this manner have a range of energies, and thereby produce a continuous spectrum in which an unbroken series of wavelengths is present.
74.7K
Atomic Fluorescence Spectroscopy01:29

Atomic Fluorescence Spectroscopy

734
Atomic fluorescence spectroscopy (AFS) is an analytical technique that involves the electronic transitions of atoms in a flame, furnace, or plasma being excited by electromagnetic (EM) radiation. When these atoms absorb energy, they become excited and subsequently release energy as they return to their original state. This emitted light, or "fluorescence," is observed at a right angle to the incident beam. Both absorption and emission processes transpire at distinct wavelengths, which...
734
Impact01:30

Impact

374
Impact occurs when two bodies collide, leading to the application of impulsive forces between them. Analyzing impact mechanics involves considering two colliding particles moving along a line known as the line of impact, which passes through their centers and is perpendicular to the contact plane.
When particles with different initial velocities collide, they induce deformation by applying equal and opposite impulses. At the point of maximum deformation, the particles move together with...
374

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por
Same author

mRNA-based MRI contrast agent for precise diagnosis of glioma and pseudoprogression.

Cell biomaterials·2026
Same author

Immune aging biomarkers for clinical trials.

Nature medicine·2026
Same author

High-dimensional immune profiling of peripheral blood identifies immune correlates of anti-PD-1/PD-L1 resistance in oncogenic driver mutation-positive NSCLC.

Frontiers in immunology·2026
Same author

Mutation-dependent responses to sleep and exercise in clonal haematopoiesis.

Nature·2026
Same author

Plasma signals of lung tumor promotion for molecular cancer prevention.

Cell·2026
Same author

Expert opinion on burning questions in cancer myeloid cell biology.

Journal for immunotherapy of cancer·2026

Video Experimental Relacionado

Updated: Dec 8, 2025

Bridging the Technology Divide in the COVID-19 Era: Using Virtual Outreach to Expose Middle and High School Students to Imaging Technology
09:55

Bridging the Technology Divide in the COVID-19 Era: Using Virtual Outreach to Expose Middle and High School Students to Imaging Technology

Published on: September 28, 2022

1.9K

"Estados Unidos primero" destruirá la ciencia estadounidense

Brian D Brown1, Andrew M Leader1, Jan Vilcek2

  • 1Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA.

Cell
|September 19, 2020
PubMed
Resumen
Este resumen es generado por máquina.

Las políticas de inmigración de Estados Unidos bajo la doctrina de "Estados Unidos primero" dañan la innovación científica al reducir el talento. Los científicos deben abogar por cambios en la política y oponerse a las opiniones antiinmigrantes para proteger la ciencia estadounidense.

Más Videos Relacionados

A Novel Technique for Raman Analysis of Highly Radioactive Samples Using Any Standard Micro-Raman Spectrometer
07:52

A Novel Technique for Raman Analysis of Highly Radioactive Samples Using Any Standard Micro-Raman Spectrometer

Published on: April 12, 2017

13.2K
Fundamental Technical Elements of Freeze-fracture/Freeze-etch in Biological Electron Microscopy
11:17

Fundamental Technical Elements of Freeze-fracture/Freeze-etch in Biological Electron Microscopy

Published on: September 11, 2014

33.9K

Videos de Experimentos Relacionados

Last Updated: Dec 8, 2025

Bridging the Technology Divide in the COVID-19 Era: Using Virtual Outreach to Expose Middle and High School Students to Imaging Technology
09:55

Bridging the Technology Divide in the COVID-19 Era: Using Virtual Outreach to Expose Middle and High School Students to Imaging Technology

Published on: September 28, 2022

1.9K
A Novel Technique for Raman Analysis of Highly Radioactive Samples Using Any Standard Micro-Raman Spectrometer
07:52

A Novel Technique for Raman Analysis of Highly Radioactive Samples Using Any Standard Micro-Raman Spectrometer

Published on: April 12, 2017

13.2K
Fundamental Technical Elements of Freeze-fracture/Freeze-etch in Biological Electron Microscopy
11:17

Fundamental Technical Elements of Freeze-fracture/Freeze-etch in Biological Electron Microscopy

Published on: September 11, 2014

33.9K

Área de la Ciencia:

  • Política científica y tecnológica
  • Estudios sobre la inmigración

Sus antecedentes:

  • La doctrina de "Estados Unidos primero" ha llevado a políticas del gobierno de los Estados Unidos destinadas a restringir la inmigración.
  • La inmigración es un impulsor importante de la innovación y la adquisición de talento en la ciencia estadounidense.

Objetivo del estudio:

  • Para analizar los efectos perjudiciales de las políticas restrictivas de inmigración de EE.UU. en la comunidad científica.
  • Abogar por la reversión de las políticas que dañan el progreso científico y el talento.

Principales métodos:

  • Análisis de la política de las regulaciones de inmigración de los Estados Unidos bajo la doctrina de "América Primero".
  • Evaluación del impacto en el talento científico y la innovación.

Principales resultados:

  • Las políticas restrictivas de inmigración han llevado a una pérdida de talento científico en los Estados Unidos.
  • Estas políticas socavan el motor de la innovación crucial para el avance científico.

Conclusiones:

  • Las políticas de inmigración "Estados Unidos primero" representan una grave amenaza para la ciencia estadounidense.
  • Se insta a los científicos a trabajar activamente para revertir estas políticas y condenar los sentimientos antiinmigrantes.