Search results for "TTR"
showing 10 items of 3945 documents
On the origin of worries about modern health hazards: Experimental evidence for a conjoint influence of media reports and personality traits
2017
Objective: Worries about health threatening effects of potential health hazards of modern life (e.g. electric devices and pollution) represent a growing phenomenon in Western countries. Yet, little is known about the causes of this growing special case of affective risk perceptions termed Modern Health Worries (MHW). The purpose of this study is to examine a possible role of biased media reports in the formation of MHW. Design: In two experiments, we investigated whether typical television reports affect MHW. In Study 1, 130 participants were randomly assigned to a film on idiopathic environmental intolerance (IEI) or a control film about cystic fibrosis. In Study 2, 82 participants were ra…
Ostruzione polmonare ed aritmia respiratoria
2019
Il monitoraggio di pazienti tramite segnali fotopletismografici (PhotoPlethysmoGram, PPG) acquisiti sul polso, arteria radiale, piuttosto che sulla punta dell’indice, permette di ottenere un segnale più stabile e con maggiori informazioni, come la gittata cardiaca, la durata della contrazione ventricolare e la chiusura dell’aorta. In questo lavoro è presentata un’attività preliminare per rilevare condizioni come l’ostruzione polmonare e le apnee notturne. Si è indagato l’andamento dell’aritmia respiratoria in relazione ad eventuali difficoltà respiratorie. Per il momento ci si è limitati ad osservare soggetti sani e l’ostruzione è stata simulata facendo respirare i soggetti attraverso una c…
Elettrodeposizione di bitiofene fulleropirrolidina per la realizzazione di sensori piezoresistivi
2019
Un nuovo sistema donatore-accettore bisaddotto bitiofene fulleropirrolidi na (bis-C60Bi) è stato elettropolimerizzato su ITO/PET(ossido di Indio-Sta gno)/PoliEtilene Tereftalato per cronoamperometria. E’ stato applicato un potenziale anodico di 1.5V alla soluzione di monomero per un certo tempo ¿QR DOO¶RWWHQLPHQWR GL XQ ¿OP VRWWLOH SROLPHULFR VXO VXEVWUDWR &DUDWWHUL]]D zioni XPS, UV-vis hanno confermato la presenza del polimero sull’elettrodo. ...
Dispositivo elettrolizzatore migliorato
2017
Un dispositivo di elettrolizzatore migliorato per la produzione elettrolitica di idrogeno allo stato gassoso
L'elettrosaldatura intraorale per l'implantologia a carico immediato.
2009
Measurements of cardiac Pre-Ejection period using a combo PPG-ECG system
2015
The extraction of biomedical parameters, for early disease detection, is assuming today an ever increasing and fundamental importance. In particular, in the cardiologic field, the preejection period (PEP) is the duration of the iso-volumetric left ventricle contraction until the aortic valve opening. This parameter is a non-constant additive delay, which rapidly changes in response to stress, emotion and physical effort. To estimate this period, several wearable electronics devices have been developed in literature, and among them the Impedance Cardiogram equipment is the most used. However, these systems are often expensive and bulky. In this paper, we propose a cost-effective and easy to …
Design and development of a continuous wave functional near infrared spectroscopy system
2014
Functional Near InfraRed Spectroscopy uses light sources and optical detectors for human brain monitoring. In this paper, a portable, low cost, battery-operated, multi-channel, continuous wave fNIRS embedded system, hosting up to 64 LED sources and 128 Silicon PhotoMultiplier optical detectors, is reported on. The designed system is based on a scalable architecture, in which each probe consists of 8 modular and flexible stands, able to host 4 bi-color LEDs as light sources, 16 silicon photomultipliers as photodetectors and a temperature sensor. The hardware structure allows to easily set up several relevant parameters: the timing of the LEDs, the optical power emitted by the LEDs; the acqui…