LSM

LSM may refer to:

Science

  • Lanthanum strontium manganite, a crystal used as a cathode material
  • LSm, a family of RNA-binding proteins
  • LSM-775, a psychedelic drug similar to LSD, although less potent
  • Modane Underground Laboratory (Laboratoire Souterrain de Modane), a particle physics laboratory in France
  • Technology

  • Land Surface Model (LSM version 1.0), a unidimensional computational model
  • Latent semantic mapping, for modelling data relationships
  • Level set method, for numerical analysis of interfaces and shapes
  • Linux Security Modules, for the computer operating system
  • Linear scheduling method, a project scheduling method for repetitive activities
  • Linear synchronous motor, an electric motor
  • Linux Software Map, file format
  • Liquid state machine, a type of neural network
  • Log-structured merge-tree, a data structure
  • Multicam (LSM), Live Slow Motion instant-replay software developed by EVS
  • Education

  • Lourdes School of Mandaluyong, Philippines
  • Louvain School of Management, Belgium
  • Vagelos Program in Life Sciences and Management, University of Pennsylvania, US
  • LSm

    In molecular biology, LSm proteins are a family of RNA-binding proteins found in virtually every cellular organism. LSm is a contraction of 'like Sm', because the first identified members of the LSm protein family were the Sm proteins. LSm proteins are defined by a characteristic three-dimensional structure and their assembly into rings of six or seven individual LSm protein molecules, and play a large number of various roles in mRNA processing and regulation.

    The Sm proteins were first discovered as antigens targeted by so-called Anti-Sm antibodies in a patient with a form of Systemic lupus erythematosus (SLE), a debilitating autoimmune disease. They were named Sm proteins in honor of Stephanie Smith, a patient who suffered from SLE. Other proteins with very similar structures were subsequently discovered and named LSm proteins. New members of the LSm protein family continue to be identified and reported.

    Proteins with similar structures are grouped into a hierarchy of protein families, superfamilies, and folds. The LSm protein structure is an example of a small beta sheet folded into a short barrel. Individual LSm proteins assemble into a six or seven member doughnut ring (more properly termed a torus), which usually binds to a small RNA molecule to form a ribonucleoprotein complex. The LSm torus assists the RNA molecule to assume and maintain its proper three-dimensional structure. Depending on which LSm proteins and RNA molecule are involved, this ribonucleoprotein complex facilitates a wide variety of RNA processing including degradation, editing, splicing, and regulation.

    Mexican Sign Language

    Mexican Sign Language (“lengua de señas mexicana” or LSM, also known by several other names), is the language of the Deaf community in the urban regions of Mexico. It is the primary language of 87,000 to 100,000 people (1986 T. C. Smith-Stark).

    Geographic distribution and variation

    Core signing populations are found in Mexico City, Guadalajara and Monterrey, with a number of smaller cities containing signing communities. Some regional variation is found (80%-90% lexical similarity across the country according to Faurot et al. 2001).

    Variation is high between age group and people of completely different religious backgrounds.

    Relationship of LSM to Spanish

    LSM is quite distinct from Spanish, with completely different verb inflections, different discourse structure and preferences for word order, and little use of the verb to be. However, there is extensive use of initialised signs with one study finding 37% of a 100-word list are initialised, compared to 14% for American Sign Language (Faurot et al. 2001). The same authors suggest that the Deaf community's comprehension of the Spanish language is very low.

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    Index loses 755 points on LSM contraction

    Dawn 17 Apr 2025
    KARACHI. The continued contraction in big industry output shattered investor confidence, causing the Pakistan Stock Exchange (PSX) to snap its northward journey on Wednesday despite an overnight rating upgrade by Fitch ... .
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