Results 41 to 50 of about 14,737,167 (364)
Decompositions for Sum-of-Power Statistics and the Sample Central Moments [PDF]
arXiv, 2021 We give some useful decompositions of sum-of-powers statistics, leading to decompositions for the sample mean, sample variance, sample skewness and sample kurtosis. We solve two related problems: computing these sample moments for a pooled sample composed of subgroups with known moments; and computing these sample moments for a subgroup using known ...
arxiv
Characterization of fungal carbonyl sulfide hydrolase belonging to clade D β‐carbonic anhydrase
FEBS Letters, EarlyView.Here, we performed a functional analysis of the fungal enzymes belonging to clade D of the β‐class carbonic anhydrase family (β‐D‐CA). The β‐D‐CAs in the basidiomycete Gloeophyllum trabeum and the ascomycete Trichoderma harzianum showed very low activity in the hydration of CO2 but exhibited high activity in the hydrolysis of carbonyl sulfide (COS ...
Ryuka Iizuka +6 more
wiley +1 more source
Journal of Pharmaceutical Analysis, 2023 This study proposes a hypodermic needle (HN) as a sorbent holder and an electrospray (ESI) emitter, thus combining extraction and analysis in a single device. A novel nylon 6-cellulose (N6-Cel) composite sorbent is proposed to extract methadone from oral
Jaime Millán-Santiago +2 more
doaj
The study of collection durum winter wheat samples according to grain quality in the Rostov region
Зерновое хозяйство России, 2021 The success of any agricultural crop breeding, including winter durum wheat primarily depends on the initial material at the breeder’s disposal, its value, and the degree of study.
A. S. Kameneva +4 more
doaj +1 more source
Control Barrier Function Augmentation in Sampling-based Control Algorithm for Sample Efficiency [PDF]
arXiv, 2021 For a nonlinear stochastic path planning problem, sampling-based algorithms generate thousands of random sample trajectories to find the optimal path while guaranteeing safety by Lagrangian penalty methods. However, the sampling-based algorithm can perform poorly in obstacle-rich environments because most samples might violate safety constraints ...
arxiv
Sample caching Markov chain Monte Carlo approach to boson sampling simulation [PDF]
New J. Phys. 22, 033022 (2020), 2019 Boson sampling is a promising candidate for quantum supremacy. It requires to sample from a complicated distribution, and is trusted to be intractable on classical computers. Among the various classical sampling methods, the Markov chain Monte Carlo method is an important approach to the simulation and validation of boson sampling.
arxiv +1 more source
FEBS Letters, EarlyView.The glacier ice worm Mesenchytraeus solifugus survives year‐round at 0 °C. Its ATP6 subunit, which forms a regulatory component of the proton pore in mitochondrial ATP synthase, has a carboxy‐terminal extension not found in any other organism examined to date. Here, we show that fusion of this extension to the homologous AtpB protein in E. coli results
Truman Dunkley +2 more
wiley +1 more source
, 2013 All original material in this collection is distributed under a Free Culture license. You are free to share, remix, and make commercial use of the work, under the Attribution and Share Alike ...
Torroni, Paolo
core
Estimation of the initial material of spring barley in the Rostov region
Зерновое хозяйство России, 2022 The current paper has presented the study results of the collection samples of spring barley. The purpose of the study was a comprehensive research of the collection of spring barley varieties and lines of various ecological and geographical origin in ...
E. G. Filippov +5 more
doaj +1 more source
Sampling Algorithms, from Survey Sampling to Monte Carlo Methods: Tutorial and Literature Review [PDF]
arXiv, 2020 This paper is a tutorial and literature review on sampling algorithms. We have two main types of sampling in statistics. The first type is survey sampling which draws samples from a set or population. The second type is sampling from probability distribution where we have a probability density or mass function.
arxiv