Results 131 to 140 of about 285,691 (303)
Total positivity order and the normal distribution [PDF]
Unlike the usual stochastic order, total positivity order is closed under conditioning. Here we provide a general formulation of the preservation properties of the order under conditioning; we study certain properties of the order including translation ...
Scarsini, Marco, Rinott, Yosef
core
Total positivity in multivariate extremes [PDF]
, 2022 Positive dependence is present in many real world data sets and has appealing stochastic properties that can be exploited in statistical modeling and in estimation. In particular, the notion of multivariate total positivity of order 2 ($\text{MTP}_2$) is
Zwiernik, Piotr +2 more
core +1 more source
Current Status on the Epidemiology of Hepatitis B Virus Infection in İstanbul
Mediterranean Journal of Infection, Microbes and AntimicrobialsIntroduction: Despite the availability of safe and effective vaccines against Hepatitis B virus (HBV), the infection remains a significant global health issue.
Mehmet Karabey +2 more
doaj +1 more source
Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?
FEBS Letters, EarlyView.This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes +3 more
wiley +1 more source
Frontiers in Molecular NeuroscienceBackground and purposeCalmodulin (CaM) levels exhibit significant elevation in the brain tissue of rodent and cell line models infected with prion, as well as in the cerebrospinal fluid (CSF) samples from patients diagnosed with sporadic Creutzfeldt ...
Xiao-Xi Jia +15 more
doaj +1 more source
Total positivity of a Cauchy kernel
Journal of Approximation Theory, 2014 We study the total positivity of the kernel $1/(x^2 + 2 \cos(π\a)xy +y^2).$ The case of infinite order is characterized by an application of Schoenberg's theorem. We then give necessary conditions for the cases of any given finite order with the help of Chebyshev polynomials of the second kind.
openaire +3 more sources
FEBS 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
Tuberculin skin test results among student close contacts with pulmonary tuberculosis
预防医学Objective: To investigate the status of tuberculin skin test (TST) results and the influencing factors among student close contacts with pulmonary tuberculosis, so as to provide the evidence for developing prevention and control strategies for pulmonary ...
SUN Jiamei, LU Qiaoling, GAO Huaqiang, YANG Zuokai, XU Laichao
doaj +1 more source
Structural insights into an engineered feruloyl esterase with improved MHET degrading properties
FEBS Letters, EarlyView.A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa +5 more
wiley +1 more source
Aggregatibacter Actinomycetemcomitans With Periodontitis and Rheumatoid Arthritis
International Dental Journal: Objective: The aim of this work was to explore the association between Aggregatibacter actinomycetemcomitans (A actinomycetemcomitans) infection and disease activity amongst those with rheumatoid arthritis (RA) with or without periodontitis (PD) in a ...
Yizhi Huang, Su Ni
doaj +1 more source