13 documents found, page 1 of 2

New generation oral appliances for treatment of obstructive sleep apnea

Oral appliances (OA) have become one of the most important treatments for obstructive sleep apnea (OSA). Efficacy and compliance have been issues raised with this treatment modality. The new generation OAs, using precision technology, are generally smaller devices occupying less space in the mouth. They create less protrusion of the mandible compared to the classical devices. Previous studies on these devices r...

Long COVID-19 fatigue and obstructive sleep apnea: is there a relation?

Fatigue has been reported as the most frequent long COVID-19 symptom. There is a physiological plausibility for relation be tween OSA and long-COVID-19 fatigue, by Intermittent nocturnal hypox emia, endothelial dysfunction, oxidative stress and low grade systemic inflammation. OSA activates the renin-angiotensin-aldosterone system (RAAS) and angiotensin-converting enzyme 2 (ACE2), which is the entry receptor fo...

Is optimal always optimal? Chronotype, time-of-day, and children's cognitive pe...

Evening screen time, sleep and diurnal type in preschool and primary school chi...

Do Larks and owls feel better at their optimal times of day? An exploratory stu...

Fused Filament Fabrication over fabrics: experiments and applications

The focus of this paper is to explore the use of Fused Filament Fabrication technology, a material extrusion additive manufacturing technology, by depositing melted Polilactic Acid (PLA) over a substrate – fabric - instead of on an empty building tray. The textile’s composition, nozzle and building plate temperature, printed PLA thickness and printed geometry have been considered as variables that could influen...

The mediating role of virtuousness in human resource management and job outcomes

In this study, we explore the role of organizational virtuousness (OV) as a mechanism through which human resource management practices (HRMP) affect employee outcomes. We propose that HRMP lead to higher levels of organizational citizenship behaviors and affective commitment by stimulating OV. In a sample of 525 workers, from 22 stores of a retailing company, we found evidence that HRMP predicts OV, in turn pr...

Direct rapid tooling for polymer processing using sheet metal tools

The rapid tooling notion has been discussed since the beginning of the additive manufacturing processes. The concept consists on using fast manufacturing technologies to develop tools to process other materials. New incremental sheet metal forming processes operation allows a parity to the former rapid prototyping perception, and so feasibly considered a smart manufacturing process. This processes encounter ind...

PROPOSAL OF AN EMPIRICAL MODEL FOR SUPPLIERS SELECTION

The problem of selecting suppliers/partners is a crucial and important part in the process of decision making for companies that intend to perform competitively in their area of activity. The selection of supplier/partner is a time and resource-consuming task that involves data collection and a careful analysis of the factors that can positively or negatively influence the choice. Nevertheless it is a critical ...

Classification of the dup 15q13.3 CNV: A National data collection

Introduction: The proximal region 15q11q14 is one of the most unstable regions in the human genome, with six recognizable break points (BP1-BP6). In 15q13.3 there is a recurrent small CNV (BP4-BP5) consisting of a 350-680 Kb duplication, encompassing the CHRNA7 gene, which encodes the alpha 7 subunit of the neuronal nicotinic acetylcholine receptor. Although microdeletions of CHRNA7 are known to cause intellect...