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In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA...
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An LC circuit consists of an inductor and a capacitor, either in series or parallel. Consider a charged capacitor connected with an inductor in series. Before the switch is closed, all the energy of the circuit is stored in the electric field of the capacitor. When the switch is closed, the capacitor begins to discharge, producing a current in the circuit. The current, in turn, creates a magnetic field in the inductor. Because of the induced emf in the inductor, the current cannot change...
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High-performance liquid chromatography(HPLC), formerly referred to as High-pressure liquid chromatography, is a powerful technique used to separate, identify, and quantify components in complex mixtures. The term "high pressure" refers to using high pressure to push the liquid mobile phase through the tightly packed columns.
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High-performance liquid chromatography, or HPLC, is an analytical technique that separates liquid samples under high pressures. An HPLC instrument consists of glass bottles for storing solvents called mobile phase reservoirs. HPLC-grade solvents are used to maintain high purity, and the dissolved gases are removed using a degasser, such as a vacuum pumping system or sparging with helium. The solvents are then pumped into the analytical column using a screw-driven syringe or reciprocating pumps.
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The role of the detectors in High-Performance Liquid Chromatography (HPLC) is to analyze the solutes as they exit from the chromatographic column. The detector recognizes the solute's property and generates corresponding electrical signals, which are converted into a readable graph of the detector's response versus elution time called a chromatogram at the computer. There are several types of HPLC detectors, each with its own advantages and limitations, depending on the analyte...
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Más allá del modelo estándar con el LHC.

John Ellis1

  • 1Theory Division, Physics Department, CERN, CH-1211 Geneva 23, Switzerland. john.ellis@cern.ch

Nature
|July 20, 2007
PubMed
Resumen

El Gran Colisionador de Hadrones puede descubrir la partícula de Higgs, desafiando potencialmente el modelo estándar de la física de partículas. También podría revelar ideas sobre supersimetría, dimensiones adicionales, asimetría materia-antimateria y materia oscura.

Área de la Ciencia:

  • Física de las partículas Física de las partículas
  • Cosmología Cosmología.
  • La teoría de cuerdas es la teoría de cuerdas.

Sus antecedentes:

  • El modelo estándar de la física de partículas describe las partículas y fuerzas fundamentales.
  • Las preguntas sin respuesta incluyen la naturaleza de la materia oscura y la asimetría materia-antimateria.
  • La teoría de cuerdas propone dimensiones espaciales adicionales.

Objetivo del estudio:

  • Para explorar los posibles descubrimientos del Gran Colisionador de Hadrones (LHC).
  • Para investigar la evidencia de nuevas partículas más allá del modelo estándar.
  • Para buscar fenómenos predichos por teorías como la supersimetría y la teoría de cuerdas.

Principales métodos:

  • Análisis de los datos generados por el Gran Colisionador de Hadrones.

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  • Las búsquedas de partículas supersimétricas.
  • Investigaciones sobre la evidencia de las dimensiones espaciales extra.

    • Principales resultados:

    • Descubrimiento potencial de la partícula de Higgs.
    • Posible detección de parejas supersimétricas.
    • Identificación de pistas relacionadas con la asimetría materia-antimateria y la materia oscura.

    Conclusiones:

    • Se espera que los datos del LHC refinen o desafíen el modelo estándar.
    • Los descubrimientos pueden incluir evidencia de supersimetría y dimensiones adicionales.
    • El LHC podría proporcionar información sobre las preguntas cosmológicas fundamentales.