Tonglu rhythmites (Upper Ordovician) in Zhejiang Province, east-central China, display three orders of cyclicity in sandstone and mudstone layer thickness. Millimeter-thick alternations of sandstone and mudstone laminae are ascribed to single tidal cycles. Centimeter-thick alternations of sand-dominated layers (SDLs) and muddominated layers (MDLs) are interpreted to be related to alternation of...

In 1988, O’Keefe proposed the theory of message design logics. Rather than a theory of communication, it is a “theory of communication theories,” focusing on the bases from which individuals envision the practice and possibilities of communication. In this view, three message design logics represent fundamentally different ways to see the communicative world. O’Keefe assumes a developmental con...

PURPOSE The purpose of this study was to investigate the possible radioactive potential of zirconium dioxide (ZrO2) dental ceramics. Such information is necessary since they became an integral part of routine prosthetic rehabilitations and devoid of scientific information about their radioactivity creates some concern in the dental community. METHODS Four different types of commercial ZrO2 cera...

Feasibility pump is one of the successful heuristic solution approaches developed almost a decade ago for computing high-quality feasible solutions of single-objective integer linear programs, and it is implemented in exact commercial solvers such as CPLEX and Gurobi. In this study, we present the first Feasibility Pump Based Heuristic (FPBH) approach for approximately generating nondominated f...

Polychlorinated biphenyls (PCBs) are a typical group of persistent organic pollutants (POPs), which have been listed under Annex A (Elimination) and C (Unintentional production) the Stockholm Convention. In this study, gas chromatography tandem mass spectrometry method was developed applied to analyze concentrations 28 PCB congeners in some Vietnamese marine fish samples. PCBs samples were ultr...

A new coating material was used for a stir bar sorptive extraction (SBSE) method coupled to a high throughput sample analysis technique. This allowed for a simple procedure for fast determinations of eight steroid hormones (estriol, estradiol, ethynylestradiol, estrone, progesterone, medroxyprogesterone, levonorgestrel, northindrone) in water. Sample pre-treatment was performed using an in-hous...

Abstract Background Neonatal jaundice, also known as hyperbilirubinemia in term and preterm infants, is treated with phototherapy when bilirubin results exceed gestational age- age-specific medical decision levels (MDL) to prevent kernicterus bilirubin-induced neurological damage. During phototherapy, unconjugated converted water-soluble isomers that are excreted the urine. Presently, electroni...

We consider multi-input multi-output (MIMO) communications over multimode fibers (MMFs). Current MMF standards, such as OM3 and OM4, use fibers with core radii of 50μm, allowing hundreds of modes to propagate. Unfortunately, due to physical and computational complexity limitations, we cannot couple and detect hundreds of data streams. In order to circumvent this issue, two solutions were presen...

BACKGROUND Sucralose has gained popularity as a low calorie artificial sweetener worldwide. Due to its high stability and persistence, sucralose has shown widespread occurrence in environmental waters, at concentrations that could reach up to several μg/L. Previous studies have used time consuming sample preparation methods (offline solid phase extraction/derivatization) or methods with rather ...