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Mathematical description in crystallography
static structure factor (or structure factor for short) is a mathematical description of how a material scatters incident radiation. The structure factor is
Structure_factor
Function in condensed matter physics
In condensed matter physics, the dynamic structure factor (or dynamical structure factor) is a mathematical function that contains information about inter-particle
Dynamic_structure_factor
Formula in X-ray diffraction and crystallography
effectively one-dimensional case, is straightforward. First, the structure factor for this case is derived, and then an expression for the peak widths
Scherrer_equation
Measure of the scattering amplitude of a wave by an isolated atom
the faster the decay of the form factor. For crystals, atomic form factors are used to calculate the structure factor for a given Bragg peak of a crystal
Atomic_form_factor
Component of crystallography
structure factor and the sum extends over all the reflections of X-rays measured and their calculated counterparts respectively. The structure factor
R-factor_(crystallography)
Probability density function in physics
structure function, like the fragmentation function, is a probability density function in physics. It is somewhat analogous to the structure factor in
Structure_function
Description of particle density in statistical mechanics
structure factor. Since this contribution is inaccessible experimentally we can subtract it from the equation above and redefine the structure factor
Radial_distribution_function
Ratio of elastic to incoherent absorption in nuclear physics
physics, the Lamb–Mössbauer factor (LMF, named after Willis Lamb and Rudolf Mössbauer) or elastic incoherent structure factor (EISF) is the ratio of elastic
Lamb–Mössbauer_factor
Concept in crystallography
\sin(\theta )}{\lambda }}} In the context of protein structures, the term B-factor is used. The B-factor is defined as B = 8 π 2 ⟨ u 2 ⟩ {\displaystyle B={8\pi
Debye–Waller_factor
Equation in statistical mechanics
other. Together with a closure relation, it is used to compute the structure factor and thermodynamic state functions of amorphous matter like liquids
Ornstein–Zernike_equation
Personality model consisting of five broad dimensions
replaced theoretically derived models of personality. The general structure of the five factors has been independently replicated across cultures and time,
Big_Five_personality_traits
Atomic-scale non-crystalline structure of liquids and glasses
corresponds to the macroscopic density of the material. The static structure factor, S(q), which can be measured with diffraction techniques, is related
Structure of liquids and glasses
Structure_of_liquids_and_glasses
differences between the observed structure factor amplitudes from the X-ray diffraction experiment and the calculated structure factor amplitudes from the current
Difference_density_map
Statistical model for 2D crystals
phases and their corresponding symmetries can be visualized using the structure factor: S ( q → ) = 1 N ⟨ ∑ i j e − i q → ( r → i − r → j ) ⟩ {\displaystyle
KTHNY_theory
structure factor amplitude and phase angle information from Fourier transforms of HRTEM images of crystallites. They are stored in crystal structure databases
Crystallographic_database
Factor in X-ray crystallography
Flack parameter is a factor used to estimate the absolute configuration of a structural model determined by single-crystal structure analysis. In this approach
Flack_parameter
the new calculated structure factor to the observed structure factor value. The process is then repeated with the new structure factor estimate. At this
Le_Bail_method
System strength beyond planned load
a realized factor of safety. A constant required value, imposed by law, standard, specification, contract or custom, to which a structure must conform
Factor_of_safety
Energy conservation during diffraction by atoms
sample, the excitation error s {\displaystyle \mathbf {s} } , the structure factor for the relevant reciprocal lattice vector, and also whether the scattering
Ewald's_sphere
Technique used for determining crystal structures and identifying mineral compounds
diffraction 'spot' is proportional to the modulus squared of the structure factor. The structure factor is a complex number containing information relating to both
X-ray_crystallography
Topics referred to by the same term
forest inventory timber metrics FormFactor, Inc., a semiconductor test and measurement company Structure factor, in condensed matter physics This disambiguation
Form_factor
Factor used to determine the compatibility of an ion with a crystal structure
Goldschmidt's tolerance factor (from the German word Toleranzfaktor) is an indicator for the stability and distortion of crystal structures. It was originally
Goldschmidt_tolerance_factor
Arrangement of interrelated elements in an object/system, or the object/system itself
human capacity to act independently and make free choices. Structure here refers to factors such as social class, religion, gender, ethnicity, customs
Structure
Mammalian protein found in Homo sapiens
increased factor Xa activity and a propensity for thrombosis. The half life of factor X is 40–45 hours. The first crystal structure of human factor Xa was
Factor_X
Six-dimensional model of human personality
E.; Di Blas, Lisa; Boies, Kathleen; De Raad, Boele (2004). "A Six-Factor Structure of Personality-Descriptive Adjectives: Solutions From Psycholexical
HEXACO model of personality structure
HEXACO_model_of_personality_structure
l-l'}} which states how the structure factor for a beam can be calculated as the sum of the products of pairs of structure factors whose indices sum to the
Sayre_equation
Statistical method
Factor analysis is a statistical method used to describe variability among observed, correlated variables in terms of a potentially lower number of unobserved
Factor_analysis
Statistical method in psychology
multivariate statistics, exploratory factor analysis (EFA) is a statistical method used to uncover the underlying structure of a relatively large set of variables
Exploratory_factor_analysis
Protein involved in coagulation
Lollar P, Bode W (October 1995). "X-ray structure of clotting factor IXa: active site and module structure related to Xase activity and hemophilia B"
Factor_IX
A structured settlement factoring transaction means a transfer of structured settlement payment rights (including portions of structured settlement payments)
Structured settlement factoring transaction
Structured_settlement_factoring_transaction
Technique for the characterisation of crystalline materials
given unit cell. Determine peak intensity: Intensity depends on the structure factor, and can be calculated from the structural model for individual peaks
Rietveld_refinement
Blood-clotting protein
Coagulation factor VIII (factor VIII, FVIII, also known as antihemophilic factor A (AHF)) is an essential blood clotting protein. In humans, it is encoded
Factor_VIII
Process of formation of blood clots
Biswas, A. (5 August 2019). "Structure functional insights into calcium binding during the activation of coagulation factor XIII A". Scientific Reports
Coagulation
General and special components
also the s factor of specific intellectual abilities. L. L. Thurstone, Howard Gardner, and Robert Sternberg also researched the structure of intelligence
Two-factor theory of intelligence
Two-factor_theory_of_intelligence
Proteins that bind DNA
an atypical zinc-finger structure at the C-terminus (either Cx4-5Cx22-23HxH or Cx7Cx23HxC). Most WRKY transcription factors bind to the W-box promoter
WRKY_transcription_factor
Structure of the Big Five model of personality
Within personality psychology, it has become common practice to use factor analysis to derive personality traits. The Big Five model proposes that there
Hierarchical structure of the Big Five
Hierarchical_structure_of_the_Big_Five
Topics referred to by the same term
addresses within a data structure Load factor (electrical), the average power divided by the peak power over a period of time Capacity factor, the ratio of actual
Load_factor
Mammalian protein found in Homo sapiens
et al. (Jul 2008). "Factor XI homodimer structure is essential for normal proteolytic activation by factor XIIa, thrombin, and factor XIa". The Journal
Factor_XI
F_{1}} is the complex structure Factor for volume 1, F 2 ∗ {\displaystyle F_{2}^{\ast }} is the complex conjugate of the structure Factor for volume 2, and
Fourier_shell_correlation
Equation in statistical mechanics
Boltzmann factor e − u / k B T {\displaystyle {\text{e}}^{-u/k_{\text{B}}T}} is either one or zero, regardless of temperature T. Therefore structure of a hard-spheres
Percus–Yevick_approximation
Protein found in humans
C3b) have also been determined. Although an atomic resolution structure for intact factor H has not yet been determined, low resolution techniques indicate
Factor_H
State similar to a liquid and a crystal
observation window. This definition is equivalent to a vanishing of the structure factor in the long-wavelength limit, and it has been extended to include heterogeneous
Hyperuniformity
Concept in statistics
loadings on this factor while the remaining variables have near-zero loadings on this factor. If these conditions hold, the factor loading matrix is
Varimax_rotation
Ordered arrangement of atoms, ions, or molecules in a crystalline material
close-packed layers. One important characteristic of a crystalline structure is its atomic packing factor (APF). This is calculated by assuming that all the atoms
Crystal_structure
the phase of the heavy-atom contribution to be determined. Since the structure factor of the heavy atom derivative (Fph) of the crystal is the vector sum
Isomorphous_replacement
Organization that maintains the global open access Protein Data Bank
analysing the structures in the database. Accomplishments 2008 The wwPDB now requires that, in addition to atomic coordinates, structure factor amplitudes
Worldwide_Protein_Data_Bank
Protein found in humans
Insulin-like growth factor 1 (IGF1), also called somatomedin C, is a hormone similar in molecular structure to insulin which plays an important role in
Insulin-like_growth_factor_1
Growth factor and signaling protein otherwise known as FGF2
Fibroblast growth factor 2 (FGF-2), also known as basic fibroblast growth factor (bFGF) and FGF-β, is a growth factor and signaling protein encoded by
Fibroblast_growth_factor_2
Signaling molecule
common mechanisms. The end result is the nodule, the structure in which nitrogen is fixed. Nod factors act by inducing changes in gene expression in the
Nod_factor
Protein-coding gene in the species Homo sapiens
Fibroblast growth factor 1 (FGF-1) also known as acidic fibroblast growth factor (aFGF), is a growth factor and signaling protein encoded by the FGF1
Fibroblast_growth_factor_1
{r}}}dr} F ( k ) {\displaystyle F({\textbf {k}})} , also known as the structure factor, is the Fourier transform of a three-dimensional periodic function
Direct methods (electron microscopy)
Direct_methods_(electron_microscopy)
Repository for small molecule crystal structures
taken as a percentage of structures for which 3D coordinates are present in the CSD. The significance of the structure factor files, mentioned above, is
Cambridge_Structural_Database
Crystallographic system where the unit cell is in the shape of a cube
atom in the structure. Each sphere in a cP lattice has coordination number 6, in a cI lattice 8, and in a cF lattice 12. Atomic packing factor (APF) is the
Cubic_crystal_system
Protein that regulates the rate of DNA transcription
In molecular biology, a transcription factor (TF) (or sequence-specific DNA-binding factor) is a protein that controls the rate of transcription of genetic
Transcription_factor
Protein involved in coagulation
Tissue factor, also called platelet tissue factor or Coagulation factor III, is a protein present in subendothelial tissue and leukocytes which plays a
Tissue_factor
Sociology concept
Opportunity structures, in sociology and related social science disciplines, are exogenous factors which limit or empower collective actors (social movements)
Opportunity_structure
Self-report personality test
developed through factor analysis, construct validity is provided by studies that confirm its factor structure. Over several decades of factor-analytic study
16PF_Questionnaire
Ratio of the lift of an aircraft to its weight
load factor is the ratio of the lift of an aircraft to its weight and represents a global measure of the stress ("load") to which the structure of the
Load_factor_(aeronautics)
electrons. The physics of the system under study is buried in the dynamic structure factor S ( q , E ) {\displaystyle S(q,E)} , which is a function of momentum
X-ray_Raman_scattering
Immune system messenger protein which induces inflammation
Tumor necrosis factor (TNF), formerly known as TNF-α, is a chemical messenger produced by the immune system that induces inflammation. TNF is produced
Tumor_necrosis_factor
Mammalian protein found in humans
Granulocyte colony-stimulating factor (G-CSF or GCSF), also known as colony-stimulating factor 3 (CSF 3), is a glycoprotein that stimulates the bone marrow
Granulocyte colony-stimulating factor
Granulocyte_colony-stimulating_factor
Drug discovery
W. (1997-09-01). "X-ray structure of antistasin at 1.9 A resolution and its modelled complex with blood coagulation factor Xa". The EMBO Journal. 16
Discovery and development of direct Xa inhibitors
Discovery_and_development_of_direct_Xa_inhibitors
Design method in structural engineering
And Resistance Factor Design (LRFD), refers to a design method used in structural engineering. A limit state is a condition of a structure beyond which
Limit_state_design
Mammalian protein found in humans
tissue factor released from damaged tissues, it is converted to factor VIIa (or blood-coagulation factor VIIa, activated blood coagulation factor VII),
Factor_VII
Neutron scattering technique
and time. Other neutron scattering techniques measure the dynamic structure factor S(Q, ω), which can be converted to F(Q, t) by a Fourier transform,
Neutron_spin_echo
Bending of electron beams due to electrostatic interactions with matter
diffraction spot to the Ewald sphere, and F g {\displaystyle F_{g}} is the structure factor: F g = ∑ j = 1 N f j exp ( 2 π i g ⋅ r j − T j g 2 ) {\displaystyle
Electron_diffraction
Enclosed structure
functions, and have been adapted throughout history in response to numerous factors, from available building materials to weather conditions, land prices,
Building
Analyzing a sample by studying trajectories of radiation passing through it
vector P ( q ) {\displaystyle P(q)} is the form factor and S ( q ) {\displaystyle S(q)} is the structure factor. When the intensities from low concentrations
Small-angle_scattering
Single-chain polypeptide capable of inhibiting blood clotting Factor Xa
(2002). "Structure and biology of tissue factor pathway inhibitor". Thromb. Haemost. 86 (4): 959–72. PMID 11686353. Witt I (2002). "Tissue-factor-pathway-Inhibitor:
Tissue factor pathway inhibitor
Tissue_factor_pathway_inhibitor
Type of crystal structure
of the octahedra driven by electronic factors (Jahn-Teller distortions). The idealized form is a cubic structure (space group Pm3m, no. 221), which is
Perovskite_(structure)
Protein family
eRF3: GSPT1, GSPT2 Crystal structures have been solved for bacterial 70S ribosome bound to each of the three release factors, revealing details in codon
Release_factor
Fibrous protein involved in blood coagulation
'cross-linked' by factor XIII ('plasma protransglutaminase') or XIIIa to form 'gamma-dimers'. The image at the left is a crystal structure of the double-d
Fibrin
Prokaryotic elongation factor
EF-Tu (elongation factor thermo unstable) is a prokaryotic elongation factor responsible for catalyzing the binding of an aminoacyl-tRNA (aa-tRNA) to the
EF-Tu
zone factor of 0.36 for Zone 5. Structural designers use this factor for the earthquake-resistant design of structures in Zone 5. The zone factor of 0
Earthquake_zones_of_India
Peptide involved in placental development
primary structure with a short sequence of fifteen amino acids without any known quaternary structure. A synthetic analogue of preimplantation factor (commonly
Preimplantation_factor
Measure of relative importance of a journal
The impact factor (IF) or journal impact factor (JIF) of an academic journal is a type of journal ranking. The impact factor of a journal reflects the
Impact_factor
Crewed full ocean depth rated submersible
Limiting Factor, known as Bakunawa since its sale in 2022, and designated Triton 36000/2 by its manufacturer, is a crewed deep-submergence vehicle (DSV)
DSV_Limiting_Factor
Peak divided by the Root mean square (RMS) of the waveform
Crest factor is a parameter of a waveform, such as alternating current or sound, showing the ratio of largest value to the more typical value. More specifically
Crest_factor
Family of analytical techniques
of inelastically scattered X-rays are monitored, giving the dynamic structure factor S ( q , ω ) {\displaystyle S(\mathbf {q} ,\omega )} . From this many
X-ray_scattering_techniques
Mix of funds used to start and sustain a business
capital structure. It is generally viewed as a purely theoretical result since it disregards many important factors in the capital structure process,
Capital_structure
Protein family
Proteopedia Vascular_Endothelial_Growth_Factor_Receptor - the Vascular Endothelial Growth Factor Receptor Structure in Interactive 3D Portal: Biology
VEGF_receptor
Financial transaction and a type of debtor finance
(called a factor) at a discount. A business will sometimes factor its receivable assets to meet its immediate cash needs. Forfaiting is a factoring arrangement
Factoring_(finance)
Protein-coding gene in the species Homo sapiens
Medicine. "Entrez Gene: CFB complement factor B". Bentley DR, Campbell RD (1986). "C2 and factor B: structure and genetics". Biochemical Society Symposium
Complement_factor_B
Market where factors of production are bought and sold
In economics, a factor market is a market where factors of production are bought and sold. Factor markets allocate factors of production, including land
Factor_market
Protein found in humans
Brain-derived neurotrophic factor (Bdnf), or abrineurin, is a protein that, in humans, is encoded by the BDNF gene. BDNF is a member of the neurotrophin
Brain-derived neurotrophic factor
Brain-derived_neurotrophic_factor
Music genre
basis of musical structure and improvisation, as did free jazz, which explored playing without regular meter, beat and formal structures. Jazz fusion appeared
Jazz
Comic book superhero team
X-Factor is a group of mutant superheroes appearing in American comic books published by Marvel Comics. X-Factor launched in 1986 featuring a team composed
X-Factor_(comics)
Mammalian protein found in humans
Coagulation factor V (Factor V), also less commonly known as proaccelerin or labile factor, is a protein involved in coagulation, encoded, in humans, by
Factor_V
FIBA's rankings of national women's basketball teams
90 – FIBA Asia and FIBA Oceania 0.74 – FIBA Africa R2 is a Region Structure Factor, used to adjust for differences in the number of games played in each
FIBA_Women's_World_Ranking
Type of building
large Indian-style palace; however, like its smaller namesakes, the common factor is that it was built for pleasure and relaxation. A sports pavilion is usually
Pavilion
Energy range in a solid where no electron states exist
silicon based on the measurement of the infinite-wavelength limit of the structure factor". Proceedings of the National Academy of Sciences. 110 (33): 13250–13254
Band_gap
Mammalian protein involved in blood clotting
Von Willebrand factor (VWF) (German: [fɔn ˈvɪləbʁant]) is a blood glycoprotein that promotes primary hemostasis, specifically, platelet adhesion. It is
Von_Willebrand_factor
British-American psychologist (1905–1998)
personality structure, arguing for this model over Eysenck's simpler higher-order 3-factor model, and constructing measures of these primary factors in the
Raymond_Cattell
Highly sensitive semiconductor electronic device
into electricity via the photovoltaic effect. APDs use materials and a structure optimised for operating with high reverse bias voltage, approaching the
Avalanche_photodiode
Human blood group system involving 49 blood antigens
who is A− has the A antigen but lacks the Rh(D) antigen). The terms Rh factor, Rh positive, and Rh negative refer to the Rh(D) antigen only. Antibodies
Rh_blood_group_system
Class of enzymes
Factor D (EC 3.4.21.46, C3 proactivator convertase, properdin factor D esterase, factor D (complement), complement factor D, CFD, adipsin) is a protein
Factor_D
Proteins functioning in translation
Elongation factors are a set of proteins that function at the ribosome, during protein synthesis, to facilitate translational elongation from the formation
Elongation_factor
Topics referred to by the same term
signal Load factor (computer science), the ratio of the number of records to the number of addresses within a data structure Load factor (electrical)
Load
Transcription factors
Hepatocyte nuclear factors (HNFs) are a group of phylogenetically unrelated transcription factors that regulate the transcription of a diverse group of
Hepatocyte_nuclear_factors
Transport protein for insulin-like growth factor 1
growth factor receptor Kalus W, Zweckstetter M, Renner C, et al. (November 1998). "Structure of the IGF-binding domain of the insulin-like growth factor-binding
Insulin-like growth factor–binding protein
Insulin-like_growth_factor–binding_protein
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