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1.
4th European International Conference on Industrial Engineering and Operations Management, IEOM 2021 ; : 308-315, 2021.
Artigo em Inglês | Scopus | ID: covidwho-1749359

RESUMO

In 2020, the COVID-19 pandemic had a profound effect on all supply chains and markets worldwide. However, most of the analysis has taken place from the brick and mortar or buyer's perspective. The purpose of this paper is to capture the effects of these closures and business limitations further upstream at the supplier level. Specifically, the metal casting business that supplies all sorts of industries, from medical implants to construction. Due to the cancellation of non-essential surgeries at hospitals, demand for medical implants has stagnated while the demand for construction has continued. By surveying stakeholders in California's metal casting industry, this research explores how this complex and diverse vocation fulfills these demands and how they have adapted to these changes. © IEOM Society International.

2.
Public Health ; 199: 17-19, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: covidwho-1404817

RESUMO

OBJECTIVES: This study aimed to determine SARS-CoV-2 seroprevalence among pregnant women in the Scottish population during the second wave of the COVID-19 pandemic. STUDY DESIGN: Prospective national serosurvey. METHODS: We tested 13,428 residual samples retrieved from pregnant women participating in the first trimester combined ultrasound and biochemical screening for fetal trisomy across Scotland for SARS-CoV-2 antibodies over a 6-month period from November 2020 to April 2021. Seroprevalence estimates were adjusted for the sensitivity and specificity of the assays and weighted to reference populations. RESULTS: Seroprevalence rates in the antenatal samples significantly increased from 5.5% (95% confidence interval [CI] 4.7%-6.5%) in the 5-week period up to and including International Organization for Standardization (ISO) Week 51 (w/b Monday 14 December 2020) to 11.3% (95% CI 10.1%-12.6%) in the 5-week period up to and including ISO Week 14 (w/b Monday 5 April 2021). Increasing seroprevalence trends across the second wave were observed among all age groups. CONCLUSIONS: By the end of the second wave of the COVID-19 pandemic, approximately one in 10 women tested around the end of the first trimester of pregnancy had antibodies to SARS-CoV-2, suggesting that the vast majority were still susceptible to COVID-19 as they progressed to the later stages of pregnancy, when risks from infection are elevated for both mother and baby.


Assuntos
COVID-19 , SARS-CoV-2 , Anticorpos Antivirais , Feminino , Humanos , Imunoglobulina G , Pandemias , Gravidez , Gestantes , Prevalência , Estudos Prospectivos , Escócia/epidemiologia , Estudos Soroepidemiológicos
3.
Wellcome Open Research ; 5(30), 2020.
Artigo em Inglês | GIM | ID: covidwho-1154875

RESUMO

Background: This study aimed to determine the sensitivity and specificity of reverse transcription PCR (RT-PCR) testing of upper respiratory tract (URT) samples from hospitalised patients with coronavirus disease 2019 (COVID-19), compared to the gold standard of a clinical diagnosis.

4.
MicroTAS - Int. Conf. Miniaturized Syst. Chem. Life Sci. ; : 468-469, 2020.
Artigo em Inglês | Scopus | ID: covidwho-1001233

RESUMO

Recent COVID-19 pandemic highlights the importance of monitoring and prediction of acute respiratory illness. Few options are available for convenient respiratory monitoring in both hospital and community settings. This paper presents a novel respiratory monitoring sensor made of carbon nanotube-paper composites (CPC). A CPC capacitive sensor fabricated with tensional fracture consists of numerous cellulose fibers coated with carbon nanotubes (CNTs). The high aspect ratio structure significantly enhances the capacitive sensitivity due to the high electric field. A CPC-wearable sensor is characterized in comparison to a sensor made of aluminum electrodes followed by monitoring of respiratory efforts. © 2020 CBMS-0001

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