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Measure of decontamination
Log reduction is a measure of how thoroughly a decontamination process reduces the concentration of a contaminant. It is defined as the common logarithm
Log_reduction
Type of computational algorithm
In computational complexity theory, a log-space reduction is a reduction computable by a deterministic Turing machine using logarithmic space. Conceptually
Log-space_reduction
Probability concept in microbiology
these inverse usages, some authors use the term log reduction (e.g., "This process gives a six-log reduction"). SALs can also be used to describe the microbial
Sterility_assurance_level
Juice extracted by hydraulic press
juice wholesale, the juice must undergo a process that achieves a "5 log reduction in bacterial plate count." The process must reduce the amount of microorganisms
Cold-pressed_juice
Time (or dose of an antimicrobial) required to kill 90% microbes
condition (e.g. temperature) or set of conditions, to achieve a one-log reduction, that is, to kill 90% of relevant microorganisms. A D-value is denoted
D-value_(microbiology)
Machine that cools or heats up and dispenses water
water supply. Usually, some method of purification is used. Log reduction (e.g. 6-log reduction or 99.9999% effective) is used as a measure on the effectiveness
Water_dispenser
Non-alcoholic apple beverage
germicidal irradiation (UVGI), or other proven methods to achieve a 5-log reduction in pathogens. Canada, however, relies on a voluntary Code of Practice
Apple_cider
Pasteurization process for liquids
raw milk), was introduced in 1933, and results in 5-log reduction (99.999%) or greater reduction in harmful bacteria. An early adopter of pasteurization
Flash_pasteurization
Chemical reaction with oxidation state changes
Redox (/ˈrɛdɒks/ RED-oks, /ˈriːdɒks/ REE-doks, reduction–oxidation or oxidation–reduction) is a type of chemical reaction in which the oxidation states
Redox
Measure of the tendency of a substance to gain or lose electrons
Redox potential (also known as oxidation / reduction potential, ORP, pe, E r e d {\displaystyle E_{red}} , or E h {\displaystyle E_{h}} ) is a measure
Reduction_potential
Supplement to hand washing
5 log reduction, similar to 35 decibel reduction) of the bacteria on hands 30 seconds after application and 99.99% to 99.999% (4 to 5 log reduction) of
Hand_sanitizer
Class in computational complexity theory
under the unproven assumption that NC ≠ P. If we use the stronger log-space reduction, this remains true, but additionally we learn that all P-complete
P-complete
Inhibition of microbial growth in food
food may not be completely sterilized (instead achieving a specified log reduction), but the use of sterile packaging and environments is retained. Pasteurization
Food_preservation
Process of cutting, processing, and moving trees
On a less intensive scale, using logging and pulpwood residues show a potential for greenhouse gas emissions reduction, as indicated through a study in
Logging
Process of preserving foods with heat
broadly, pasteurizing is any method that reduces microbes by an amount (log reduction) equivalent to Pasteur's process. Novel processes, thermal and non-thermal
Pasteurization
Disinfection method using ultraviolet light
reprimand. Specialist companies will often advertise a certain log reduction, e.g., 6-log reduction or 99.9999% effective, instead of sterilization. This takes
Ultraviolet germicidal irradiation
Ultraviolet_germicidal_irradiation
Juice produced from apples
thermal processing times and temperatures in order to achieve a five-log reduction of Cryptosporidium parvum as this parasite is more heat resistant than
Apple_juice
Study of health and disease within a population
- International health) Disease prevention Disease surveillance Harm reduction Health promotion (Behavior change) Health indicators Human right to water
Epidemiology
Method of preserving and sterilizing food under high pressure
pressure settings, HPP can achieve either pasteurization-equivalent log reduction or go further to achieve sterilization, which includes killing of endospores
Pascalization
Computer science concept
In computer science, the reduction operator is a type of operator that is commonly used in parallel programming to reduce the elements of an array into
Reduction_operator
Quantum algorithm for integer factorization
{\displaystyle O\!\left((\log N)^{2}(\log \log N)(\log \log \log N)\right)} using fast multiplication, or even O ( ( log N ) 2 ( log log N ) ) {\displaystyle
Shor's_algorithm
Dwelling constructed of logs
A log cabin is a small log house, especially a minimally finished or less architecturally sophisticated structure. Log cabins have an ancient history in
Log_cabin
Chemical mixture in water solution
made EOW (used within 2 minutes of creation) was shown to achieve a 5-log reduction in pathogens. The disinfectant claims of EOW are based on a formulation
Electrolysed_water
Method for basic wastewater treatment (on-site)
significant reduction of pathogens compared to direct discharge due to settling (in the tank) and soil absorption (in the drain field). Log reductions of 4–8
Septic_tank
Efficient hardware implementation of a digital multiplier
of the Wallace tree is its faster speed. It has O ( log n ) {\displaystyle O(\log n)} reduction layers, but each layer has only O ( 1 ) {\displaystyle
Wallace_tree
Physical law in electrochemistry
chemical thermodynamical relationship that permits the calculation of the reduction potential of a reaction (half-cell or full cell reaction) from the standard
Nernst_equation
Unit of information
cleaning Outlier Winsorizing Truncation Missing data Data reduction Dimensionality reduction Principal component analysis Factor analysis Time-series preprocessing
Data
Algorithm for transforming one optimization problem into another
about APX, Log-APX, or Poly-APX, but nevertheless they are valued for their natural formulation and ease of use in proofs. PTAS-reduction is another commonly
Approximation-preserving reduction
Approximation-preserving_reduction
Transformation of one computational problem to another
hierarchy, polynomial-time reductions are used. When studying classes within P such as NC and NL, log-space reductions are used. Reductions are also used in computability
Reduction_(complexity)
Country in South America
According to some calculations, a global carbon market can speed up emission reduction seven-fold. Brazilian topography is also diverse and includes hills, mountains
Brazil
Machine learning algorithm
_{i=1}^{J}-\Pr(i\mid a)\log _{2}\Pr(i\mid a)} That is, the expected information gain is the mutual information, meaning that on average, the reduction in the entropy
Decision_tree_learning
Standard apparent reduction potentials (E°') in biochemistry at pH 7
The values below are standard apparent reduction potentials (E°') for electro-biochemical half-reactions measured at 25 °C, 1 atmosphere and a pH of 7
Table of standard reduction potentials for half-reactions important in biochemistry
Table_of_standard_reduction_potentials_for_half-reactions_important_in_biochemistry
Archipelagic country in Southeast Asia
Retrieved February 25, 2022 – via United Nations Office for Disaster Risk Reduction. Rinard Hinga, Bethany D. (March 17, 2015). "Philippines". Ring of Fire:
Philippines
Optimal data structure for priority queues
of Ω ( log log n ) , {\displaystyle \Omega (\log \log n),} upper bound of O ( 2 2 log log n ) . {\displaystyle O(2^{2{\sqrt {\log \log n}}}).}
Strict_Fibonacci_heap
President of the United States from 2009 to 2017
created a Congressional Joint Select Committee on Deficit Reduction to propose further deficit reduction with a stated goal of achieving at least $1.5 trillion
Barack_Obama
Process of removing noise from a signal
Noise reduction is the process of removing noise from a signal. Noise reduction techniques exist for audio and images. Noise reduction algorithms may distort
Noise_reduction
Uncontrolled fire in forests or open spaces
between low-level vegetation and tree canopies, such as small trees, downed logs, and vines. Kudzu, Old World climbing fern, and other invasive plants that
Wildfire
Family of optimization algorithms
variance reduction methods converge almost as fast as the gradient descent method's O ( ( L / μ ) log ( 1 / ϵ ) ) {\displaystyle O{\bigl (}(L/\mu )\log(1/\epsilon
Stochastic_variance_reduction
Complexity class (logarithmic space)
way. Every non-trivial problem in L is complete under log-space reductions, so weaker reductions are required to identify meaningful notions of L-completeness
L_(complexity)
Country in Central Africa
DRC, Articles 182, 183, 184. Democratic Republic of the Congo: Poverty Reduction Strategy Paper-Progress Report (EPub). International Monetary Fund. 2010
Democratic Republic of the Congo
Democratic_Republic_of_the_Congo
2026. Retrieved June 21, 2026. "Typhoon Mekkhala (2026) Real-Time Tracking Log". Japan Meteorological Agency. Retrieved June 23, 2026. "Tropical Cyclone
2026_Pacific_typhoon_season
Country in West Asia
Bible, King Hiram of Tyre collaborated closely with Solomon, supplying cedar logs for Solomon's Temple and sending skilled workers. The Phoenicians are credited
Lebanon
N-th root of the product of n numbers
( log 2 1 + log 2 2 + log 2 8 + log 2 16 ) / 4 = 2 ( 0 + 1 + 3 + 4 ) / 4 = 2 2 = 4. {\displaystyle {\sqrt[{4}]{1\cdot 2\cdot 8\cdot 16}}=2^{(\log _{2}\
Geometric_mean
Estimator for quality of a statistical model
density function for the log-normal distribution. We then compare the AIC value of the normal model against the AIC value of the log-normal model. For misspecified
Akaike_information_criterion
complexity of decision problems. The term L reduction is sometimes used to refer to log-space reductions, by analogy with the complexity class L, but
L-reduction
Algorithm in computational number theory
The Lenstra–Lenstra–Lovász (LLL) lattice basis reduction algorithm is a polynomial time lattice reduction algorithm invented by Arjen Lenstra, Hendrik Lenstra
Lenstra–Lenstra–Lovász lattice basis reduction algorithm
Lenstra–Lenstra–Lovász_lattice_basis_reduction_algorithm
Country in South America
' said Celina Ramirez, an opposition supporter who said she was able to log into the website to locate the tally sheet from her east Caracas voting center
Venezuela
Type of computer algorithm
run_move_count = number_of_runs * log(number_of_runs)/log(reduction_factor) run_move_count = number_of_runs * log_reduction_factor(number_of_runs) Using the
Polyphase_merge_sort
Parameter in microbiology
shown is the base 10 logarithm of the concentration. This allows the log reduction of a decontamination process to be computed as a simple subtraction
Colony-forming_unit
Benzodiazepine sedative
can result in tolerance, dependence, and withdrawal symptoms on dose reduction. Abrupt stopping after long-term use can be potentially dangerous. After
Diazepam
Civil War general, U.S. president from 1869 to 1877
years. This followed a policy of "hard currency, economy and gradual reduction of the national debt." Grant's own ideas about the economy were simple
Ulysses_S._Grant
Method of data analysis
Principal component analysis (PCA) is a linear dimensionality reduction technique with applications in exploratory data analysis, visualization and data
Principal_component_analysis
Boolean satisfiability is NP-complete and therefore that NP-complete problems exist
( log ( p ( n ) ) p ( n ) 3 ) {\displaystyle O(\log(p(n))p(n)^{3})} . Thus the transformation is certainly a polynomial-time many-one reduction, as
Cook–Levin_theorem
1948 old-time radio program
1948. p. 5. Retrieved January 31, 2017. Call for Music log from Jerry Haendiges Vintage Radio Logs Call for Music episodes from Old Time Radio Researchers
Call_for_Music
Portland-class heavy cruiser of the United States Navy
York: Progressive Press. ISBN 978-1615775811. Loynd, Ray (1978). The Jaws 2 Log. London: W. H. Allen. ISBN 0426188683. Lech, Raymond B. (1982). All the Drowned
USS_Indianapolis_(CA-35)
figure of 204,000 compared to 649,000 for the previous year, with the reduction due mostly to fewer people arriving for work and study. A seventh arrest
2025_in_the_United_Kingdom
Laboratory test in veterinary medicine
degrees of freedom. The CI for the log-ratio can be then transformed back to obtain the 95% CI for the estimated reduction. The World Association for the
Faecal egg count reduction test
Faecal_egg_count_reduction_test
Handheld game console
than six months after launch, Nintendo announced a significant price reduction from US$249.99 to US$169.99 amid disappointing launch sales. The company
Nintendo_3DS
Mathematical model of computation
(PDF) on 15 July 2011. Retrieved 7 June 2011. Hopcroft, John (1971). "An n log n algorithm for minimizing states in a finite automaton". Theory of Machines
Finite-state_machine
Twin-aisle airliner family
explosion of TWA Flight 800, the FAA introduced new rules about flammability reduction in 2008. In 2012, Boeing requested an exemption for the 767 from new wiring
Boeing_767
whitelists can be used in tandem, barring even whitelisted players if they try to log in via a blacklisted IP address, for example. Blockstun A period of time
Glossary_of_video_game_terms
Optimization problem in computer science
deterministic polynomial-time reductions even when approximation within a factor 2 ( log n ) 1 − ε {\displaystyle 2^{(\log n)^{1-\varepsilon }}} is permitted
Lattice_problem
Industrial activity producing goods for sale using labor and machines
turn leads to cost reductions in product prices for the market towards end customers.[unreliable source?] This relative cost reduction towards the market
Manufacturing
Red supergiant star in the constellation Orion
April 2018. van Leeuwen, F.; et al. (November 2007). "Hipparcos, the new reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A
Betelgeuse
History of rent control and rent-control proposals in Massachusetts
non-controlled units, but could require landlords to give their tenants a rent reduction. The Boston Rent Control Board took a broad look at who was an owner of
Rent_control_in_Massachusetts
large and complex fires. However, prescribed burning and mechanical fuel reduction strategies faced limitations due to narrow windows of safe weather conditions
2025_United_States_wildfires
Class of peptide
properties of arenicin-3 are responsible for its efficacy in inducing a 3-log reduction of E. coli bacterial load within 4 hours in a murine peritonitis model
Arenicin
Removal of pyrogens from solutions
thermally stable, sufficient heating (250 °C for 30 min) results in a 3-log reduction of endotoxin levels. Due to the high temperature levels, this method
Depyrogenation
Chemical compound
6 g/100g (60 °C (140 °F)) Solubility in seawater 22.8 ppm (salinity 35) log P 3.34 Vapor pressure Sublimation pressure: 0.036 Pa (−10 °F; −23 °C) 0.514 Pa
Naphthalene
Star system in the Centaurus constellation
Silva, D. (1 February 2024). "Gaia FGK benchmark stars: Fundamental Teff and log g of the third version". Astronomy and Astrophysics. 682: A145. arXiv:2310
Alpha_Centauri
American football player (born 2000)
on July 2, 2022. Retrieved September 17, 2023. "Shilo Sanders 2019 Game Log". Sports Reference. Archived from the original on July 21, 2024. Retrieved
Shilo_Sanders
Type of Turing reduction
projections where each subsequent reduction notion is weaker than the prior; see polynomial-time reduction and log-space reduction for details. Given decision
Many-one_reduction
Type of operation in parallel computing
component-wise reduction. Pipelined reduce on a balanced binary tree is possible in O ( α log p + β n ) {\displaystyle {\mathcal {O}}(\alpha \log p+\beta n)}
Collective_operation
deflationary model advocated by Niemeyer and included a reduction of 20 per cent in government spending, a reduction in bank interest rates and an increase in taxation
History_of_Australia
Biome characterized by coniferous forests
applied weekly for 7 weeks incurred no statistically significant (P 0.05) reduction in growth during the experiment compared with the background control (pH
Taiga
Concept in computability theory
reduction of A {\displaystyle A} to B {\displaystyle B} that runs in polynomial time. The concept of log-space reduction is similar. These reductions
Turing_reduction
Inherent difficulty of computational problems
complexity of reductions, such as polynomial-time reductions or log-space reductions. The most commonly used reduction is a polynomial-time reduction. This means
Computational complexity theory
Computational_complexity_theory
Algorithm to multiply two numbers
log n log log n ) {\displaystyle O(n\log n\log \log n)} . In 2007, Martin Fürer proposed an algorithm with complexity O ( n log n 2 Θ ( log ∗
Multiplication_algorithm
Agent that deactivates or destroys viruses
Disinfectant Enveloped virus List of cleaning products#Disinfectants Log reduction "Medical Definition of VIRUCIDE". www.merriam-webster.com. Retrieved
Virucide
Class of statistical survival models
and all others by Ci = 0. The corresponding log partial likelihood is ℓ ( β ) = ∑ i : C i = 1 ( X i ⋅ β − log ∑ j : Y j ≥ Y i θ j ) , {\displaystyle \ell
Proportional_hazards_model
Statistical matching technique
estimation for the propensity score: predicted probability p or the log odds, log[p/(1 − p)]. 2. Match each participant to one or more nonparticipants
Propensity_score_matching
nonapeptide improved OBPgp279's log reduction against various gram-negative and gram-positive bacteria by as much as three logs. This improvement is likely
OBPgp279
Problem of inverting exponentiation in groups
{\displaystyle a} and b {\displaystyle b} , the logarithm log b ( a ) {\displaystyle \log _{b}(a)} is a number x {\displaystyle x} such that b x = a
Discrete_logarithm
Multiplicative amount of light a photography filter blocks
f-stops of light reduction, given a filter factor, may be calculated using the formula: log 2 ( f i l t e r f a c t o r ) {\displaystyle \log _{2}(filterfactor)}
Filter_factor
Ontario court rules that Premier Ford must release his personal cell phone logs. January 5–6 – Carney travels to Paris, France to participate in peace negotiations
2026_in_Canada
Model for generating observable data in probability and statistics
cleaning Outlier Winsorizing Truncation Missing data Data reduction Dimensionality reduction Principal component analysis Factor analysis Time-series preprocessing
Generative_model
Species of plant
tomato potato psyllid (TPP) in 2006. This was reflected in a corresponding reduction in volume from 800 tonnes worth $3.5 million, to 250 tonnes valued at
Tamarillo
Measure of ranking quality
_{i=2}^{p}{\frac {rel_{i}}{\log _{2}(i+1)}}} Until 2013, there was no theoretically sound justification for using a logarithmic reduction factor other than the
Discounted_cumulative_gain
Empirical law on the variance of species in a habitat
mean density of the samples. log ( m ) = log ( a ) + b log ( − log ( p 0 ) ) {\displaystyle \log(m)=\log(a)+b\log(-\log(p_{0}))} where p0 is the proportion
Taylor's_law
Simplifying data to facilitate analysis
Data reduction is the transformation of numerical or alphabetical digital information derived empirically or experimentally into a corrected, ordered
Data_reduction
Method for solving one problem using another
problem in P would be complete. Instead, weaker reductions such as log-space reductions or NC reductions are used for defining classes of complete problems
Polynomial-time_reduction
Type of activation function
_{i=1}^{\infty }X_{i}} is approximately equal to N ( log ( 1 + e x ) , σ ( x ) ) {\displaystyle {\mathcal {N}}(\log(1+e^{x}),\sigma (x))} , which is also approximately
Rectified_linear_unit
Movement in support of infrastructure development
adopted YIMBY policies have seen substantial increase in housing supply and reductions in rent.[promotion?] The YIMBY movement has supporters across the political
YIMBY
Brazilian politician (born 1957)
incremental approach to urban problems. In office he advanced a back-log reduction drive, “João Pessoa Opera Mais,” with targets of 8,000 procedures (3
Cícero_Lucena
Elias (2009). "Agglomeration and Elimination of Terms for Dimensionality Reduction". 2009 Ninth International Conference on Intelligent Systems Design and
List of datasets for machine-learning research
List_of_datasets_for_machine-learning_research
Forestry practice aiming at sustainability
Francis E. (2019-04-01). "Selective logging emissions and potential emission reductions from reduced-impact logging in the Congo Basin". Forest Ecology
Reduced-impact_logging
Proposed 2012 United States law
prove that their loss of citizenship "did not result in a substantial reduction in taxes". The new subparagraph A provides for the imposition of capital
Ex-PATRIOT_Act
X-ray binary in Cygnus containing a stellar black hole
this lobe. The gas and dust between Earth and HDE 226868 results in a reduction in the apparent magnitude of the star, as well as a reddening of the hue—red
Cygnus_X-1
Danish astronomer
Line chart Statistical data processing Transformations Data transformation Log transformation Power transform Box–Cox transformation Yeo–Johnson transformation
Thorvald_N._Thiele
Chemical compound
reduces aldehydes but not most ketones. It is especially suitable for reductive aminations of aldehydes and ketones. However, unlike sodium cyanoborohydride
Sodium_triacetoxyborohydride
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