Results 101 to 110 of about 12,298,066 (345)

A note on the variance of average treatment effects estimators [PDF]

open access: yes
We derive the variance of the Hirano, Imbens and Ridder (Econometrica 66, 315--31, 2003) average treatment effects estimator when the true propensity score is known. This variance is used in the derivation of the variance of a similar two-step estimator,
Gabriel Montes-Rojas
core  

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

The Method of Signal Processing when Measuring Non-stationary Values

open access: yesEnergy Engineering and Control Systems, 2015
Nowadays the problem of quick-changing non-stationary values measurement is extremely actual in various modern technical systems (parameters control of engine combustion chamber, testing of aerospace complex products, scientific researches etc.).
Myroslav Tykhan   +2 more
doaj   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

Familiarity and Voice Representation: From Acoustic-Based Representation to Voice Averages

open access: yesFrontiers in Psychology, 2017
The ability to recognize an individual from their voice is a widespread ability with a long evolutionary history. Yet, the perceptual representation of familiar voices is ill-defined.
Maureen Fontaine   +2 more
doaj   +1 more source

Average Effective Tax Rates in Mexico [PDF]

open access: yes
The paper estimates average effective tax rates on consumption, labor and capital income for Mexico, using the method of Mendoza et al. (1994) and related extensions, including two novel refinements.
Arturo Antón Sarabia
core  

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

open access: yesFEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

Power Collection from Wave Energy Farms

open access: yesApplied Sciences, 2013
Most Wave Energy Converters (WECs) produce highly distorted power due to thereciprocal motion induced by ocean waves. Some WEC systems have integrated energystorage that overcomes this limitation, but add significant expenses to an already costlysystem ...
Marta Molinas   +2 more
doaj   +1 more source

Using average nucleotide identity to improve taxonomic assignments in prokaryotic genomes at the NCBI

open access: yesInternational Journal of Systematic and Evolutionary Microbiology, 2018
Average nucleotide identity analysis is a useful tool to verify taxonomic identities in prokaryotic genomes, for both complete and draft assemblies.
S. Ciufo   +9 more
semanticscholar   +1 more source

Mining of high average-utility patterns with item-level thresholds

open access: yes, 2019
In this paper, we introduce a level-wise algorithm named High Average-Utility Itemset Mining with Multiple Minimum Average-Utility threshold (HAUIM-MMAU), which relies on a novel transaction-maximum utility downward closure (TMUDC) property and a concept
Zhang, Ji   +4 more
core   +1 more source

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