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SIGMA FACTOR

  • Sigma factor
  • Protein needed for initiation of transcription in prokaryotes

    A sigma factorfactor or specificity factor) is a protein needed for initiation of transcription in bacteria. It is a bacterial transcription initiation

    Sigma factor

    Sigma_factor

  • Anti-sigma factors
  • Antagonists of a youth's slang

    Anti-sigma factors are small proteins that bind to sigma factors and inhibit transcriptional activity in regulating prokaryote gene expression. Anti-sigma

    Anti-sigma factors

    Anti-sigma_factors

  • Six Sigma
  • Business process improvement technique

    $350 million in cost savings thanks to Six Sigma, which was an important factor in the spread of Six Sigma (this figure later grew to more than $1 billion)

    Six Sigma

    Six_Sigma

  • Sigma
  • Eighteenth letter of the Greek alphabet

    Sigma (/ˈsɪɡmə/ SIG-mə; uppercase Σ, lowercase σ, lowercase in word-final position ς; Greek: σίγμα) is the eighteenth letter of the Greek alphabet. When

    Sigma

    Sigma

  • Sigma approximation
  • \left(\operatorname {sinc} {\frac {k}{m}}\right)^{p}} is the Lanczos σ factor, which is responsible for eliminating most of the Gibbs phenomenon. This

    Sigma approximation

    Sigma approximation

    Sigma_approximation

  • Bacillus subtilis
  • Catalase-positive bacterium

    locus for sigma F, which begins to be expressed in the forespore. In order to prevent sigma F expression in the mother cell, an anti-sigma factor, which

    Bacillus subtilis

    Bacillus subtilis

    Bacillus_subtilis

  • General transcription factor
  • Class of protein transcription factors

    transcription factors are necessary for transcription to occur. In bacteria, transcription initiation requires an RNA polymerase and a single GTF: sigma factor. In

    General transcription factor

    General transcription factor

    General_transcription_factor

  • Transcription (biology)
  • Process of copying a segment of DNA into RNA

    single sigma factor, multiple general transcription factors are required to initiate transcription. Archaea have three general transcription factors: TBP

    Transcription (biology)

    Transcription (biology)

    Transcription_(biology)

  • Bacterial transcription
  • Process in genetics

    called the sigma factor (σ-factor), the polymerase can recognize specific binding sequences in the DNA, called promoters. The binding of the σ-factor to the

    Bacterial transcription

    Bacterial transcription

    Bacterial_transcription

  • Standard deviation
  • Measure of variation in statistics

    the factors here are as follows: Pr ( q α 2 < k s 2 σ 2 < q 1 − α 2 ) = 1 − α , {\displaystyle \Pr \left(q_{\frac {\alpha }{2}}<k{\frac {s^{2}}{\sigma ^{2}}}<q_{1-{\frac

    Standard deviation

    Standard deviation

    Standard_deviation

  • RpoS
  • Gene

    polymerase, sigma S, also called katF) encodes the sigma factor sigma-38 (σ38, or RpoS), a 37.8 kD protein in Escherichia coli. Sigma factors are proteins

    RpoS

    RpoS

  • RpoN
  • Protein domain

    the sigma factor sigma-54 (σ54, sigma N, or RpoN), a protein in Escherichia coli and other species of bacteria. RpoN antagonizes RpoS sigma factors. Originally

    RpoN

    RpoN

  • Z-factor
  • Measure of statistical effect size

    {\displaystyle \sigma _{c}} ), the Z-factor is defined as: Z-factor = 1 − 3 ( σ s + σ c ) | μ s − μ c | {\displaystyle {\text{Z-factor}}=1-{3(\sigma _{s}+\sigma _{c})

    Z-factor

    Z-factor

  • Stress intensity factor
  • Quantity in fracture mechanics; predicts stress intensity near a crack's tip

    {\displaystyle \sigma _{ij}(r,\theta )={\frac {K}{\sqrt {2\pi r}}}\,f_{ij}(\theta )+\,\,{\rm {higher\,order\,terms}}} where K is the stress intensity factor (with

    Stress intensity factor

    Stress intensity factor

    Stress_intensity_factor

  • Sigma (disambiguation)
  • Topics referred to by the same term

    sigma, Sigma, Σ, σ, or ς in Wiktionary, the free dictionary. Sigma (Σ or σ, word-final lowercase ς) is the 18th letter of the Greek alphabet. Sigma may

    Sigma (disambiguation)

    Sigma_(disambiguation)

  • FourU thermometer
  • Class of non-coding RNAs in Salmonella

    operates in conjunction with a sigma factor (σ32) which is known to also regulate a number of other genes. Sigma factor-RNA thermometer combinations have

    FourU thermometer

    FourU thermometer

    FourU_thermometer

  • Lilliputian Hitcher
  • Episode of Neon Genesis Evangelion

    polysomes, the Pribnow box, the central dogma of molecular biology, and the sigma factor. Its title is also a reference to the Lilliputians, the microscopic men

    Lilliputian Hitcher

    Lilliputian_Hitcher

  • RpoE
  • gene rpoE (RNA polymerase, extracytoplasmic E) encodes the sigma factor sigma-24 (σ24, sigma E, or RpoE), a protein in Escherichia coli and other species

    RpoE

    RpoE

  • Listeria monocytogenes
  • Species of pathogenic bacteria that causes the infection listeriosis

    stressosome senses environmental stress and activates the alternative sigma factor σB, which in turn promotes transcription of prfA from the stress-responsive

    Listeria monocytogenes

    Listeria monocytogenes

    Listeria_monocytogenes

  • Elo rating system
  • System for rating game players

    {\sigma (r_{\mathsf {A,B}};\kappa )\sigma (-r_{\mathsf {A,B}};\kappa )}},} where σ ( r ; κ ) = 10 r / s 10 − r / s + κ + 10 r / s {\displaystyle \sigma

    Elo rating system

    Elo_rating_system

  • Synechocystis sp. PCC 6803
  • Species of bacterium

    Synechocystis possesses the 70S sigma factor (σ70), which can be divided into three groups. Group 1 sigma factors are critical for cell viability. Group

    Synechocystis sp. PCC 6803

    Synechocystis_sp._PCC_6803

  • Bacterial stress response
  • response, controlled by the sigma factor sigma 32 Envelope stress response, controlled mainly by the sigma factor sigma E and the Cpx two-component system

    Bacterial stress response

    Bacterial_stress_response

  • RSD
  • Topics referred to by the same term

    disorder, another term for repetitive strain injury Regulator of sigma D, an anti-sigma factor in E. coli bacteria Relative standard deviation Robust standard

    RSD

    RSD

  • Alpha and beta male
  • Slang terms for men

    have expanded the Greek-letter hierarchy to include related terms such as "sigma male," used to describe a solitary but high-status "lone wolf" who exists

    Alpha and beta male

    Alpha_and_beta_male

  • Lytic cycle
  • Cycle of viral reproduction

    Amongst other modifications, virus T4 changes the sigma factor of the host by producing an anti-sigma factor so that the host promotors are not recognized

    Lytic cycle

    Lytic_cycle

  • RpoF
  • Gene that encodes the sigma factor sigma-28

    The gene rpoF (RNA polymerase, flagellum F) encodes the sigma factor sigma-28 (σ28, or RpoF), a protein in Escherichia coli and other species of bacteria

    RpoF

    RpoF

  • Transcriptional regulation
  • Control of DNA to RNA conversion in cells

    transcription initiation. Sigma factors act as mediators of sequence-specific transcription, such that a single sigma factor can be used for transcription

    Transcriptional regulation

    Transcriptional_regulation

  • RNA polymerase
  • Enzyme that synthesizes RNA from DNA during Transcription

    small omega (ω) subunit. A sigma (σ) factor binds to the core, forming the holoenzyme. After transcription starts, the σ factor can unbind and let the core

    RNA polymerase

    RNA polymerase

    RNA_polymerase

  • Stress triaxiality
  • Concept in continuum mechanics

    It is often used as a triaxiality factor, T.F, which is the ratio of the hydrostatic stress, σ m {\displaystyle \sigma _{m}} , to the Von Mises equivalent

    Stress triaxiality

    Stress_triaxiality

  • Four factor formula
  • Formula used to calculate nuclear chain reaction growth rate

    The four-factor formula, also known as Fermi's four factor formula is used in nuclear engineering to determine the multiplication of a nuclear chain reaction

    Four factor formula

    Four_factor_formula

  • 6S / SsrS RNA
  • Non-coding RNA

    regulator of sigma 70-dependent gene transcription. All bacterial RNA polymerases have a subunit called a sigma factor. The sigma factors are important

    6S / SsrS RNA

    6S_/_SsrS_RNA

  • RSSB
  • Topics referred to by the same term

    India Royal Statistical Society of Belgium RssB, a specialized anti-sigma factor in gene expression RSSB Tigers, a Rwandan professional basketball team

    RSSB

    RSSB

  • Sigma Corporation
  • Japanese camera and camera lens manufacturer

    sensor with twice the pixel count. In July 2019, Sigma announced the Sigma fp, a small form-factor, 24.6MP full-frame mirrorless camera. At the time

    Sigma Corporation

    Sigma Corporation

    Sigma_Corporation

  • Sigma 4.5mm f/2.8 EX DC Circular Fisheye HSM lens
  • Fisheye lens for APS-C cameras

    fisheye effect on crop factor digital SLR cameras, which do not have a full 36x24mm sensor. This lens is available in Canon, Nikon, Sigma, Pentax and Sony mounts

    Sigma 4.5mm f/2.8 EX DC Circular Fisheye HSM lens

    Sigma 4.5mm f/2.8 EX DC Circular Fisheye HSM lens

    Sigma_4.5mm_f/2.8_EX_DC_Circular_Fisheye_HSM_lens

  • Six factor formula
  • Formula used to calculate nuclear chain reaction growth rate

    {\displaystyle I_{r,A,i}=\int _{E_{th}}^{E_{0}}dE'{\frac {\Sigma _{p}^{mod}}{\Sigma _{t}(E')}}{\frac {\sigma _{a}^{i}(E')}{E'}}} ξ ¯ {\displaystyle {\overline

    Six factor formula

    Six_factor_formula

  • Normal distribution
  • Probability distribution

    {\displaystyle \sigma } ⁠. This is equivalent to saying that the standard normal distribution ⁠ Z {\displaystyle Z} ⁠ can be scaled/stretched by a factor of ⁠ σ

    Normal distribution

    Normal distribution

    Normal_distribution

  • Promoter (genetics)
  • Region of DNA encouraging transcription

    bacteria The promoter is recognized by RNA polymerase and an associated sigma factor, which in turn are often brought to the promoter DNA by an activator

    Promoter (genetics)

    Promoter (genetics)

    Promoter_(genetics)

  • Silver ratio
  • Number, approximately 2.41421

    {\begin{aligned}\sigma ^{n}&=2\sigma ^{n-1}+\sigma ^{n-2}\\&=\sigma ^{n-1}+3\sigma ^{n-2}+\sigma ^{n-3}\\&=2\sigma ^{n-1}+2\sigma ^{n-3}+\sigma ^{n-4}\end{aligned}}}

    Silver ratio

    Silver ratio

    Silver_ratio

  • Index of genetics articles
  • Shotgun sequencing Shotgun technique Shuttle vector Sickle-cell disease Sigma factor Signal peptide Signal peptide Silent gene Silent mutation SINE Single-gene

    Index of genetics articles

    Index_of_genetics_articles

  • Dissipation factor
  • Measure of loss-rate of energy of a mode of oscillation in a dissipative system

    In physics, the dissipation factor (DF) is a measure of loss-rate of energy of a mode of oscillation (mechanical, electrical, or electromechanical) in

    Dissipation factor

    Dissipation_factor

  • Rickettsia
  • Genus of bacteria

    factor Mfd, a 10-amino-acid insertion in ribosomal protein L19, a one-amino-acid insertion in FtsZ, a one-amino-acid insertion in major sigma factor 70

    Rickettsia

    Rickettsia

    Rickettsia

  • Pauli matrices
  • Matrices important in quantum mechanics and the study of spin

    sigma _{j},\sigma _{k}\right]+\{\sigma _{j},\sigma _{k}\}&=(\sigma _{j}\sigma _{k}-\sigma _{k}\sigma _{j})+(\sigma _{j}\sigma _{k}+\sigma _{k}\sigma

    Pauli matrices

    Pauli matrices

    Pauli_matrices

  • Regulon
  • the sigma factor σ32 (RpoH), whose regulon has been characterized as containing at least 89 open reading frames. Regulons involving virulence factors in

    Regulon

    Regulon

  • Core enzyme
  • Subunits of an enzyme that are needed for catalytic activity

    An example of a core enzyme is a RNA polymerase enzyme without the sigma factor (σ). This enzyme consists of only two alpha (2α), one beta (β), one beta

    Core enzyme

    Core_enzyme

  • AfaR small RNA
  • mRNA. The transcription of AfaR is dependent on the stress response sigma factor sigma E. Bacterial small RNA Pichon, C; du Merle, L; Lequeutre, I; Le Bouguénec

    AfaR small RNA

    AfaR_small_RNA

  • Bacteroides thetaiotaomicron
  • Species of bacterium

    as sigma factors and two-component systems. The colocalization of the gene encoding digestive enzymes with extracytoplasmic function sigma factors and

    Bacteroides thetaiotaomicron

    Bacteroides thetaiotaomicron

    Bacteroides_thetaiotaomicron

  • APS-C
  • Image sensor format

    Nikon: DX Pentax: DA Samsung: NX Sigma: DC Sony: DT, E (APS-C if not designated FE) Tamron: Di II Tokina: DX A crop factor (sometimes referred to as a "focal

    APS-C

    APS-C

    APS-C

  • Salmonella enterica subsp. enterica
  • Subspecies of bacterium

    extremely low or high temperatures which can range from 2 °C – 54 °C. Sigma factors inside the cell control the gene expression and they can sense the changes

    Salmonella enterica subsp. enterica

    Salmonella enterica subsp. enterica

    Salmonella_enterica_subsp._enterica

  • Factor analysis
  • Statistical method

    ^ a ) 2 {\displaystyle {\hat {\sigma }}_{a}^{2}={\tfrac {1}{N-1}}\sum _{i}(x_{ai}-{\hat {\mu }}_{a})^{2}} The factor analysis model for this particular

    Factor analysis

    Factor_analysis

  • RNA polymerase II holoenzyme
  • Form of eukaryotic RNA polymerase II

    initiation. In bacteria, the sigma factor recognizes and binds to the promoter sequence. In eukaryotes, the transcription factors perform this role. Mediator

    RNA polymerase II holoenzyme

    RNA_polymerase_II_holoenzyme

  • Schmid's law
  • Formula for the direction of slip of a stressed crystalline material

    {\displaystyle \sigma _{y}} ), which is related to the critical resolved shear stress by τ c = m σ y {\displaystyle \tau _{c}=m\sigma _{y}} . The Schmid factor is

    Schmid's law

    Schmid's law

    Schmid's_law

  • Scherrer equation
  • Formula in X-ray diffraction and crystallography

    size; K {\displaystyle K} is a dimensionless shape factor, with a value close to unity. The shape factor has a typical value of about 0.9, but varies with

    Scherrer equation

    Scherrer_equation

  • Sigma 18-35mm f/1.8 DC HSM A
  • Photographic lens

    The Sigma 18-35mm f/1.8 DC HSM Art lens is a fast, constant-aperture wide standard zoom lens made by Sigma Corporation. It was announced April 18, 2013

    Sigma 18-35mm f/1.8 DC HSM A

    Sigma 18-35mm f/1.8 DC HSM A

    Sigma_18-35mm_f/1.8_DC_HSM_A

  • A. C. Matin
  • Pakistani-American microbiologist and immunologist

    synthesis was controlled by σs (formerly called KatF) and that this sigma factor thereby controlled development of the general stress response. Hunger

    A. C. Matin

    A._C._Matin

  • Autolysin
  • Class of enzymes

    is controlled by the activity of the chemotaxis sigma factor,  σD. The activity of this sigma factor peaks at the start of the stationary phase. Autolysins

    Autolysin

    Autolysin

  • Cyanobacteria
  • Phylum of photosynthesising prokaryotes

    Watanabe N, Ogawa T, Grossman AR (March 1999). "The role of an alternative sigma factor in motility and pilus formation in the cyanobacterium Synechocystis sp

    Cyanobacteria

    Cyanobacteria

    Cyanobacteria

  • Endospore
  • Protective structure formed by bacteria

    understanding of the regulation of gene expression, transcription factors, and the sigma factor subunits of RNA polymerase. Endospores of the bacterium Bacillus

    Endospore

    Endospore

    Endospore

  • Neisseria sigma-E sRNA
  • RNA family

    discovered in a screen for genes differentiated by high expression of the Sigma factor, sigma E. Seven genes were predicted to be regulated by NSE sRNA, including

    Neisseria sigma-E sRNA

    Neisseria sigma-E sRNA

    Neisseria_sigma-E_sRNA

  • Tac-Promoter
  • region and the '–10' region (the Pribnow box). These two regions bind the sigma factor of RNA polymerase, which then initiates transcription of the downstream

    Tac-Promoter

    Tac-Promoter

    Tac-Promoter

  • Standard error
  • Statistical property

    sample; reducing it by a factor of ten requires a hundred times as many observations. The standard deviation σ {\displaystyle \sigma } of the population being

    Standard error

    Standard error

    Standard_error

  • Staphylococcus virus G1
  • Species of virus

    interact with its host's RNA polymerase though an interaction with a sigma factor. The phage contains a genome of 138,715 base pairs with a 30.4% of GC

    Staphylococcus virus G1

    Staphylococcus_virus_G1

  • Ms1 small RNA
  • RNA family

    present in other bacteria. Ms1 does not require the presence of the main sigma factor for RNAP interaction. There is evidence that Ms1 RNA may function similar

    Ms1 small RNA

    Ms1 small RNA

    Ms1_small_RNA

  • Vibrio regulatory RNA of OmpA
  • RNA family

    stress sigma factor, sigma E; unlike other strains of bacteria such as E. coli and Salmonella, it does not require the Hfq protein to regulate the sigma factor

    Vibrio regulatory RNA of OmpA

    Vibrio regulatory RNA of OmpA

    Vibrio_regulatory_RNA_of_OmpA

  • Gene expression
  • Conversion of a gene's sequence into a mature gene product or products

    bind a DNA sequence called a Pribnow box with the help of the sigma factor protein (σ factor) to start transcription. In eukaryotes, transcription is performed

    Gene expression

    Gene_expression

  • AsrC small RNA
  • RNA family

    of rseC) is a cis-encoded antisense RNA of rseC (an activator gene of sigma factor RpoE) described in Salmonella enterica serovar Typhi. It was discovered

    AsrC small RNA

    AsrC small RNA

    AsrC_small_RNA

  • Fano factor
  • Statistics concept

    physicist. The Fano factor after a time t {\displaystyle t} is defined as F ( t ) = σ t 2 μ t , {\displaystyle F(t)={\frac {\sigma _{t}^{2}}{\mu _{t}}}

    Fano factor

    Fano_factor

  • Qrr RNA
  • Biological molecule

    cell density is low, which leads to a phosphorylated LuxO, along with sigma factor 54, activating qrr1-5 expression. Binding sites for these two regulators

    Qrr RNA

    Qrr RNA

    Qrr_RNA

  • Sigma 30mm f/1.4 EX DC HSM lens
  • Photographic lens

    crop factor of roughly 1.5, and therefore the image circle will not cover the full frame if used on full-frame or 135 film cameras. In 2013, Sigma announced

    Sigma 30mm f/1.4 EX DC HSM lens

    Sigma 30mm f/1.4 EX DC HSM lens

    Sigma_30mm_f/1.4_EX_DC_HSM_lens

  • Staphopain A (Staphylococcus aureus)
  • transcription of scp occurs via a promoter controlled by "housekeeping" sigma factor σA and up-regulated by accessory gene regulator agr. It is at also repressed

    Staphopain A (Staphylococcus aureus)

    Staphopain A (Staphylococcus aureus)

    Staphopain_A_(Staphylococcus_aureus)

  • Stress concentration
  • Location in an object where stress is far greater than the surrounding region

    The stress concentration factor, K t {\displaystyle K_{t}} , is the ratio of the highest stress σ max {\displaystyle \sigma _{\max }} to a nominal stress

    Stress concentration

    Stress concentration

    Stress_concentration

  • LacUV5
  • conforms more closely to the consensus sequence recognized by bacterial sigma factors than the traditional lac promoter does. Due to this, lacUV5 recruits

    LacUV5

    LacUV5

  • Staphylococcus aureus
  • Species of Gram-positive bacterium

    Nguyen TL, Ohta T, et al. (2012). "Expression of a cryptic secondary sigma factor gene unveils natural competence for DNA transformation in Staphylococcus

    Staphylococcus aureus

    Staphylococcus aureus

    Staphylococcus_aureus

  • Etendue
  • Measure of the "spread" of light in an optical system

    S\right)=\pi \,\mathrm {d} \Sigma \,F_{\mathrm {d} \Sigma \rightarrow \mathrm {d} S}\,,} where FdΣ→dS is the view factor between differential surfaces

    Etendue

    Etendue

    Etendue

  • CMA-ES
  • Evolutionary algorithm

    {\displaystyle p_{\sigma }\gets \underbrace {(1-c_{\sigma })} _{\!\!\!\!\!{\text{discount factor}}\!\!\!\!\!}\,p_{\sigma }+\overbrace {\sqrt {1-(1-c_{\sigma })^{2}}}

    CMA-ES

    CMA-ES

  • Slip factor
  • Measure of the fluid slip in the impeller of a compressor or a turbine

    In turbomachinery, the slip factor is a measure of the fluid slip in the impeller of a compressor or a turbine, mostly a centrifugal machine. Fluid slip

    Slip factor

    Slip_factor

  • Phi Beta Sigma
  • International historically Black American collegiate fraternity

    Phi Beta Sigma Fraternity, Inc. (ΦΒΣ) is a historically African American fraternity. It was founded at Howard University in Washington, D.C. in 1914.

    Phi Beta Sigma

    Phi_Beta_Sigma

  • Larmor precession
  • Movement of an object's magnetic moment axis about a magnetic field

    }}{ds}}={\frac {e}{m}}u^{\tau }u_{\sigma }F^{\sigma \lambda }a_{\lambda }+2\mu (F^{\tau \lambda }-u^{\tau }u_{\sigma }F^{\sigma \lambda })a_{\lambda },} where

    Larmor precession

    Larmor_precession

  • Structure factor
  • Mathematical description in crystallography

    structure factor (or structure factor for short) is a mathematical description of how a material scatters incident radiation. The structure factor is a critical

    Structure factor

    Structure_factor

  • Glutamyl endopeptidase GluV8
  • Extracellular serine protease

    transcription of ssp, that occurs via a promoter controlled by "housekeeping" sigma factor σA, is up-regulated by accessory gene regulator agr, while it is repressed

    Glutamyl endopeptidase GluV8

    Glutamyl endopeptidase GluV8

    Glutamyl_endopeptidase_GluV8

  • Cyanobacterial morphology
  • Form and structure of a phylum

    stationary-phase Escherichia coli cells are controlled by the novel sigma factor sigma S". Journal of Bacteriology. 173 (14). American Society for Microbiology:

    Cyanobacterial morphology

    Cyanobacterial morphology

    Cyanobacterial_morphology

  • Central limit theorem
  • Fundamental theorem in probability theory and statistics

    the factor n {\displaystyle {\sqrt {n}}} , approaches the normal distribution with mean 0 {\displaystyle 0} and variance σ 2 . {\displaystyle \sigma ^{2}

    Central limit theorem

    Central limit theorem

    Central_limit_theorem

  • Sigma 50mm f/1.4 EX DG HSM lens
  • Lens for photographic camera

    The Sigma 50mm f/1.4 EX DG HSM is a normal prime lens made by the Sigma Corporation. The lens is produced in Canon EF mount, Four Thirds System, Nikon

    Sigma 50mm f/1.4 EX DG HSM lens

    Sigma 50mm f/1.4 EX DG HSM lens

    Sigma_50mm_f/1.4_EX_DG_HSM_lens

  • Fracture mechanics
  • Study of propagation of cracks in materials

    to the stress intensity factor K I {\displaystyle K_{I}} following: σ i j = ( K I 2 π r )   f i j ( θ ) {\displaystyle \sigma _{ij}=\left({\cfrac {K_{I}}{\sqrt

    Fracture mechanics

    Fracture mechanics

    Fracture_mechanics

  • Pseudomonas fluorescens
  • Species of bacterium

    PMID 15759041. S2CID 18469703. Alain Sarniguet; et al. (1995). "The sigma factor σs affects antibiotic production and biological control activity of Pseudomonas

    Pseudomonas fluorescens

    Pseudomonas fluorescens

    Pseudomonas_fluorescens

  • Archaeal transcription factor B
  • Protein family

    is homologous to eukaryotic TFIIB and, more distantly, to bacterial sigma factor. Like these proteins, it is involved in forming transcription preinitiation

    Archaeal transcription factor B

    Archaeal transcription factor B

    Archaeal_transcription_factor_B

  • DsrA RNA
  • Non-coding RNA

    protein, and translation, by promoting efficient translation of the stress sigma factor, RpoS. These two activities of DsrA can be separated by mutation: the

    DsrA RNA

    DsrA RNA

    DsrA_RNA

  • Halalkalibacterium halodurans
  • Species of bacterium

    unclassified Bacillus strain - was found to contain unique genes and sigma factors that may have aided its adaptation to more alkaline environments. This

    Halalkalibacterium halodurans

    Halalkalibacterium_halodurans

  • Divisor
  • Integer that divides another integer

    mathematics, a divisor of an integer n , {\displaystyle n,} also called a factor of n , {\displaystyle n,} is an integer m {\displaystyle m} that may be

    Divisor

    Divisor

    Divisor

  • Softmax function
  • Smooth approximation of one-hot arg max

    ) {\displaystyle \sigma (\mathbf {z} +\mathbf {c} )=\sigma (\mathbf {z} )} , because it multiplies each exponent by the same factor, e c {\displaystyle

    Softmax function

    Softmax_function

  • Median absolute deviation
  • Statistical measure of variability

    67449 {\displaystyle \operatorname {MAD} /\sigma =\Phi ^{-1}(3/4)=0.67449} , from which we obtain the scale factor k = 1 / Φ − 1 ( 3 / 4 ) = 1.4826 {\displaystyle

    Median absolute deviation

    Median_absolute_deviation

  • Kalai Mathee
  • Microbiologist

    focused on alginate gene regulation with a focus on the alginate-specific sigma factor, AlgT/U, and she was the first to show MucA is an inner membrane protein

    Kalai Mathee

    Kalai Mathee

    Kalai_Mathee

  • NrsZ small RNA
  • RNA family

    nitrogen assimilation and swarming motility) together with the alternative sigma factor RpoN ( a global regulator involved in nitrogen metabolism). NrsZ by activating

    NrsZ small RNA

    NrsZ small RNA

    NrsZ_small_RNA

  • Principal component analysis
  • Method of data analysis

    \mathbf {\Sigma } ^{\mathsf {T}}\mathbf {U} ^{\mathsf {T}}\mathbf {U} \mathbf {\Sigma } \mathbf {W} ^{\mathsf {T}}\\&=\mathbf {W} \mathbf {\Sigma } ^{\mathsf

    Principal component analysis

    Principal component analysis

    Principal_component_analysis

  • Transcription factor II B
  • Mammalian protein found in Homo sapiens

    transcription factors. It is encoded by the TFIIB gene, and is homologous to archaeal transcription factor B and analogous to bacterial sigma factors. TFIIB

    Transcription factor II B

    Transcription factor II B

    Transcription_factor_II_B

  • The X Factor
  • International television franchise

    The X Factor is a television music competition franchise created by British producer Simon Cowell and his company Syco Entertainment. It originated in

    The X Factor

    The_X_Factor

  • Bacterial DNA binding protein
  • with high specificity to the mRNA of rpoS, a transcript for the stress sigma factor of RNA polymerase, and stimulates translation of the protein. Additional

    Bacterial DNA binding protein

    Bacterial_DNA_binding_protein

  • Variance
  • Statistical measure of how far values spread from their average

    an estimate of the population variance σ 2 {\textstyle \sigma ^{2}} that is biased by a factor of n − 1 n {\textstyle {\frac {n-1}{n}}} because the expectation

    Variance

    Variance

    Variance

  • Bloom's 2 sigma problem
  • Educational phenomenon of greatly improved performance by tutored learners

    Bloom's 2 sigma problem refers to the educational phenomenon that the average student tutored one-to-one using mastery learning techniques performed two

    Bloom's 2 sigma problem

    Bloom's_2_sigma_problem

  • Q factor
  • Resonator damping parameter

    {\textstyle \delta ={1}/{\sqrt {\pi f\sigma u_{o}}}} ) In medical ultrasonography, a transducer with a high Q-factor is suitable for doppler ultrasonography

    Q factor

    Q factor

    Q_factor

  • Vasicek model
  • Mathematical model of interest rates

    dr_{t}=a(b-r_{t})\,dt+\sigma \,dW_{t}} where Wt is a Wiener process under the risk neutral framework modelling the random market risk factor, in that it models

    Vasicek model

    Vasicek model

    Vasicek_model

AI & ChatGPT searchs for online references containing SIGMA FACTOR

SIGMA FACTOR

AI search references containing SIGMA FACTOR

SIGMA FACTOR

  • SHEM
  • Male

    Hebrew

    SHEM

    (שֵׁם) Hebrew name SHEM means "conspicuous position, name, renown, sigma." In the bible, this is the name of a son of Noah.

    SHEM

  • Peck
  • Surname or Lastname

    English (mainly East Anglia)

    Peck

    English (mainly East Anglia) : metonymic occupational name for someone who dealt in weights and measures, for example a grain factor, from Middle English pekke ‘peck’ (an old measure of dry goods equivalent to eight quarts or a quarter of a bushel).English : variant of Peak 1.Irish : variant of Peak 2.South German : variant of Beck.North German and Dutch : metonymic occupational name for someone who prepared or sold pitch, from Middle Low German pek, Middle Dutch pec, pic.Dutch : from Middle Dutch pec, pick ‘desperate straits’, hence a nickname for a person in difficult circumstances or perhaps for someone with a gloomy disposition.

    Peck

  • Daniel
  • Surname or Lastname

    English, French, Spanish, Portuguese, German, Polish, Czech, Slovak, Hungarian (Dániel), Romanian, and Jewish

    Daniel

    English, French, Spanish, Portuguese, German, Polish, Czech, Slovak, Hungarian (Dániel), Romanian, and Jewish : from the Hebrew personal name Daniel ‘God is my judge’, borne by a major prophet in the Bible. The major factor influencing the popularity of the personal name (and hence the frequency of the surname) was undoubtedly the dramatic story in the Book of Daniel, recounting the prophet’s steadfast adherence to his religious faith in spite of pressure and persecution from the Mesopotamian kings in whose court he served: Nebuchadnezzar and Belshazzar (at whose feast Daniel interpreted the mysterious message of doom that appeared on the wall, being thrown to the lions for his pains). The name was also borne by a 2nd-century Christian martyr and by a 9th-century hermit, the legend of whose life was popular among Christians during the Middle Ages; these had a minor additional influence on the adoption of the Christian name. Among Orthodox Christians in Eastern Europe the name was also popular as being that of a 4th-century Persian martyr, who was venerated in the Orthodox Church.Irish : reduced form of McDaniel, which is actually a variant of McDonnell, from the Gaelic form of Irish Donal (equivalent to Scottish Donald), erroneously associated with the Biblical personal name Daniel. See also O’Donnell.Peter Daniel was one of the pioneer settlers in the 17th century in Stafford County, VA, where he was a justice of the peace. His grandson, Peter Vivian Daniel, was a U.S. Supreme Court justice from 1841 to his death in Richmond, VA, in 1860.

    Daniel

  • Bissell
  • Surname or Lastname

    English

    Bissell

    English : from Middle English buyscel, busshell, bysshell ‘bushel’, ‘measure of grain’ (Old French boissel, buissel, of Gaulish origin), hence a metonymic occupational name for a grain merchant or factor, one who measured grain. The name may also have been applied to a maker of vessels designed to hold or measure out a bushel.English : from a diminutive of Biss.Respelling of German Biesel, a habitational name from Bisel in Alsace.

    Bissell

  • SigMt
  • Boy/Male

    Norse

    SigMt

    Victorious defender.

    SigMt

  • Sima
  • Girl/Female

    Hindu

    Sima

    Boundary, Border

    Sima

  • SEEMA
  • Female

    Hindi/Indian

    SEEMA

    (सीमा) Variant spelling of Hindi Sima, SEEMA means "boundary, limit." Compare with another form of Seema.

    SEEMA

  • Signa
  • Girl/Female

    Latin

    Signa

    Sign.

    Signa

  • Simkin
  • Surname or Lastname

    English (Midlands)

    Simkin

    English (Midlands) : from the Middle English personal name, a pet form of Sim.Jewish (from Belarus) : metronymic from Simke, a pet form of the Yiddish female personal name Sime (see Sima) with the eastern Slavic possessive suffix -in.

    Simkin

  • Sima
  • Girl/Female

    Afghan, Arabic, Armenian, Australian, Farsi, French, Gujarati, Hebrew, Hindu, Indian, Malayalam, Muslim, Sanskrit, Tamil

    Sima

    Limit; Border; Listener; Precious Thing; Treasure; Boundary; Bank; Shore

    Sima

  • Zafran
  • Boy/Male

    Arabic, Muslim

    Zafran

    Gold Stigma of a Flower; Derived from Zarparan

    Zafran

  • Signa
  • Girl/Female

    Danish, German, Latin, Scandinavian, Swedish

    Signa

    Sign; Signal; Victory

    Signa

  • Silma
  • Girl/Female

    Arabic, Muslim

    Silma

    Peace

    Silma

  • SIMA
  • Female

    Hindi/Indian

    SIMA

    (सीमा) Hindi name SIMA means "boundary, limit." Compare with another form of Sima.

    SIMA

  • Syms
  • Surname or Lastname

    English

    Syms

    English : patronymic from a short form of the personal name Simon.Jewish (from Ukraine; Symes, Symis) : metronymic from the Yiddish female personal name Sime (see Sima).Benjamin Syms was a planter and philanthropist, probably the earliest inhabitant of any North American colony to bequeath property for the establishment of a free school. His name was spelled variously as Sims, Simes, Sym, Symms, Syms, and Symes. He was probably born in England, but was reported in the VA census of 1624/25 as age 33 and living at Basse’s Choice in what was later known as Isle of Wight County.

    Syms

  • Sima | ஸீமா
  • Girl/Female

    Tamil

    Sima | ஸீமா

    Boundary, Border

    Sima | ஸீமா

  • Sigga
  • Girl/Female

    British, Danish, English, German, Swedish

    Sigga

    Powerful Silence; Peaceful Victory

    Sigga

  • Sagma
  • Boy/Male

    Hindu, Indian, Muslim

    Sagma

    Powerful; Mighty; Strong; Rich; Successful

    Sagma

  • Simes
  • Surname or Lastname

    English

    Simes

    English : patronymic from Sim.Jewish (Ashkenazic) : metronymic from the Yiddish female personal name Sime (see Sima).

    Simes

  • Sima
  • Girl/Female

    Scottish

    Sima

    Listener.

    Sima

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Online names & meanings

  • Vimala | விமலா
  • Girl/Female

    Tamil

    Vimala | விமலா

    Pure, Clean

  • Gaila
  • Girl/Female

    English

    Gaila

    Joyful. Abbreviation of Abigail. Gael is a term for descendants of the ancient Celts in Scotland;...

  • Mateah | மாதேஃ
  • Boy/Male

    Tamil

    Mateah | மாதேஃ

    Honored, Desired, Liked

  • Monckton
  • Surname or Lastname

    English

    Monckton

    English : habitational name from any of various places named Monkton, from Old English munuc ‘monk’ + tūn ‘farmstead’, ‘settlement’, in particular those in Devon and Kent, although there are other, less important, examples (often with distinguishing affixes).

  • Sadhana
  • Girl/Female

    Assamese, Celebrity, Gujarati, Hindu, Indian, Jain, Kannada, Malayalam, Marathi, Oriya, Sanskrit, Sindhi, Tamil, Telugu

    Sadhana

    Long Practice; Study; Fulfilment; Achievement; Goddess Durga

  • Amaan | امان
  • Boy/Male

    Muslim

    Amaan | امان

    Peace

  • Shakir
  • Boy/Male

    Muslim/Islamic

    Shakir

    Thankful

  • Daryl
  • Boy/Male

    French American English

    Daryl

    From a French surname and place name meaning 'Open.' Dates back to the eleventh century as both...

  • Trina
  • Girl/Female

    African, American, Bengali, British, Christian, English, Finnish, French, Gaelic, German, Greek, Hindu, Indian, Jamaican, Sanskrit, Scandinavian, Slavic, Swedish, Tamil

    Trina

    Pure; Short Form of Katrina; Diminutive of Catriona; A Scottish Gaelic Variant of Catherine; Clear; Innocent; Goddess Parvati; Good; Pleasing; Grass

  • Lipsa
  • Girl/Female

    Hindu, Indian

    Lipsa

    Wish; To Get More

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Other words and meanings similar to

SIGMA FACTOR

AI search in online dictionary sources & meanings containing SIGMA FACTOR

SIGMA FACTOR

  • Stigma
  • v. t.

    One of the external openings of the tracheae of insects, myriapods, and other arthropods; a spiracle.

  • Stigma
  • v. t.

    A red speck upon the skin, produced either by the extravasation of blood, as in the bloody sweat characteristic of certain varieties of religious ecstasy, or by capillary congestion, as in the case of drunkards.

  • Sigma
  • n.

    The Greek letter /, /, or / (English S, or s). It originally had the form of the English C.

  • Stoma
  • n.

    A stigma. See Stigma, n., 6 (a) & (b).

  • Stigmas
  • pl.

    of Stigma

  • Stigma
  • v. t.

    Any mark of infamy or disgrace; sign of moral blemish; stain or reproach caused by dishonorable conduct; reproachful characterization.

  • Stigma
  • v. t.

    One of the apertures of the gill of an ascidian, and of Amphioxus.

  • Stigma
  • v. t.

    Marks believed to have been supernaturally impressed upon the bodies of certain persons in imitation of the wounds on the crucified body of Christ. See def. 5, above.

  • Stigma
  • v. t.

    A mark made with a burning iron; a brand.

  • Sigmas
  • pl.

    of Sigma

  • Stigma
  • v. t.

    A point so connected by any law whatever with another point, called an index, that as the index moves in any manner in a plane the first point or stigma moves in a determinate way in the same plane.

  • Stigmata
  • n.

    pl. of Stigma.

  • Stigmatical
  • a.

    Of or pertaining to a stigma or stigmata.

  • Note
  • n.

    Stigma; brand; reproach.

  • Stigmata
  • pl.

    of Stigma

  • Sigla
  • n. pl.

    The signs, abbreviations, letters, or characters standing for words, shorthand, etc., in ancient manuscripts, or on coins, medals, etc.

  • Stigma
  • v. t.

    A small spot, mark, scar, or a minute hole; -- applied especially to a spot on the outer surface of a Graafian follicle, and to spots of intercellular substance in scaly epithelium, or to minute holes in such spots.

  • Stigma
  • v. t.

    That part of a pistil which has no epidermis, and is fitted to receive the pollen. It is usually the terminal portion, and is commonly somewhat glutinous or viscid. See Illust. of Stamen and of Flower.

  • Pollinate
  • v. t.

    To apply pollen to (a stigma).

  • Stigma
  • v. t.

    One of the apertures of the pulmonary sacs of arachnids. See Illust. of Scorpion.