Let G be a finite abelian group. The constrained barycentric Davenport constant BD(G) with s ≥ 2, is the smallest positive integer d such that every sequence with d terms in G contains a k-barycentric subsequence with 2 ≤ k ≤ s. The generalized barycentric Davenport constant BDs(G), s ≥ 1, is the least positive integer d such that in every sequence with d terms there exist s disjoint barycentri...

Conflicting reports are available with regard to the effects of childhood abuse and neglect on hippocampal function in children. While earlier imaging studies and some animal work have suggested that the effects of early-life stress (ELS) manifest only in adulthood, more recent studies have documented impaired hippocampal function in maltreated children and adolescents. Additional work using an...

We describe a test, based on the correlation integral, for the independence of a variable and a vector that can be used to detect model misspecification in serially dependent data. In Monte Carlo simulations this test performs nearly as well or better than the BDS test in univariate time series and complements the BDS test in distributed lag models. Finally, we apply our test to detect misspeci...

Biodesulfurization (BDS) can be used as complementary technology to traditional hydrodesulfurization (HDS) process for sulfur reduction in fossil fuel. One of the mayor problems of BDS is the lower desulfurization yield obtained due to the low solubility of organosulfur compounds in water phase where microorganisms survive. In this work, the use of chemical surfactants largely increase the proc...

The Chinese BeiDou global satellite system (BDS-3) and regional (BDS-2) are predicted to coexist over the next decade. Intersystem biases (ISBs) in BDS-2/BDS-3 play a key role maintaining consistency continuity from BDS-2 BDS-3 time transfer. Here, we discuss temporal characteristics, parameter composition, generation mechanism, effect of ISBs on frequency orbits clock products three internatio...

The Global Navigation Satellite System can provide all-day three-dimensional position and speed information. Currently, only using the single navigation system cannot satisfy the requirements of the system's reliability and integrity. In order to improve the reliability and stability of the satellite navigation system, the positioning method by BDS and GPS navigation system is presented, the me...

China’s navigation satellite system BeiDou is developed according to a three step strategy [1]. The first step construction begun in 1994 and ended in 2000, as the BeiDou Navigation Demonstration System, as known as BeiDou I, provided radio determination satellite service (RDSS). The second step covers from 2004 to 2012, and is to construct the BeiDou navigation satellite System (BDS, also call...

The benzodiselenazoles (BDS) introduced in this report fulfill, for the first time, all the prerequisites for noncovalent high-precision chalcogen-bonding catalysis in the focal point of conformationally immobilized s holes on strong selenium donors in a neutral scaffold. Rational bite-angle adjustment to the long Se–C bonds was the key for BDS design. For the unprecedented BDS motif, synthesis...

We explore the rotation and activity of very low mass (VLM) objects by means of a photometric variability study. Our targets in the vicinity of ǫOri belong to the Ori OB1b population in the Orion star-forming complex. In this region we selected 143 VLM stars and brown dwarfs (BDs), whose photometry in RIJHK is consistent with membership of the young population. The variability of these objects ...

We previously described the physicochemical characteristics (particle size, adsorbed polynuclear aromatic hydrocarbons [PAHs], oxygen, and metal content) of butadiene soot (BDS) nanoparticles generated during incomplete combustion of the high-volume industrial petrochemical, 1,3-butadiene. We also demonstrated localization of BDS-delivered PAHs to lipid droplets of murine and human respiratory ...