The thesis is aimed at analyzing current fluctuation mechanisms in organic and silicon heterojunction solar cells. For the latter, thermal admittance spectroscopy was evaluated as comparison and complementary tool to the previous technique. Current fluctuations in both devices were analyzed investigating properties of 1/f noise in function of the storage time in air for organic solar cells and in function of the area in silicon heterojunction devices. The latters, have been under a reverse bi...
The Silicon Carbide (SiC) is a "new" material that offers very high performance, but the lifetime of components (in this case SiC MOSFET) are not sufficient and is shorter than the Silicon (Si) counterparts.
The power cycling test is the best and the main way to extract the lifetime of a component. It can be performed in AC or DC mode, in this project the focus is on the DC mode.
For the components made with Silicon Carbide (SiC) the expected lifetime is not reaching the theoretical valu...
The health risks associated with epileptic seizures make early detection and effective intervention essential. Seizures detection devices are a useful tool for epilepsy monitoring. Accurate detectors can alert caregivers and reduce the distress of individuals experiencing nocturnal seizures. For this reason, there is an urgent need for non-invasive, accurate, affordable, and easily wearable technologies that can be used both in clinical and home monitoring settings. Thanks to recent advanceme...
This research was conducted during an internship at the Sports Engineering & Sports Material laboratory of the Technical University of Munich (TUM) and falls within the broad scope of research aimed at developing a new mechatronic ski binding. It is a safety system designed to modulate the force/torque required for releasing the ski boot based on various knee injury risk scenarios that the skier may encounter. One major challenge towards a mechatronic ski binding is the development of an appr...
La presente tesi sperimentale intende approfondire i risultati trovati dallo studio di Spagnolli et al. (2021). L’obiettivo è comprendere quali fattori portino le persone ad andare in aiuto un individuo in difficoltà in una situazione di emergenza e se la condivisione della posizione spaziale sia un fattore chiave per la messa in atto del comportamento di aiuto, come ipotizzato dall’esperimento precedente. Lo studio ha coinvolto circa 60 ragazze e ragazzi appartenenti alla popolazione univers...
Presupposti dello studio:
Le cefalee sono dei disturbi che interessano circa un terzo della popolazione mondiale e che nella loro forma cronica possono avere delle conseguenze, oltre che a livello sanitario, anche nella vita quotidiana, lavorativa e sociale. Tra i fattori di mantenimento delle cefalee primarie, una scarsa flessibilità autonoma e fattori cognitivi maladattivi, come la catastrofizzazione del dolore, sembrano avere un ruolo rilevante.
Scopo dello studio:
La presente ricerca ha...
The PsyCourse Study, conducted in Germany and Austria, researches the longitudinal course of severe mental disorders across the 'psychotic-to-affective continuum', including neurotypic individuals. Over 18 months and four measurement points, participants underwent comprehensive assessments, including collection of biomaterial, at approximately 6-month intervals. Metadata on the assessments are available online.
This study focuses on polygenic scores (PRS) for a common executive function (cEF...
Presupposti: La malattia di Parkinson (MP) è una patologia neurodegenerativa cronica, caratterizzata da prevalenti sintomi motori e sintomi non motori, come disturbi cognitivi e comportamentali. Sebbene nelle fasi iniziali la terapia farmacologica orale sia efficace nella gestione dei sintomi, con la progressione della malattia è spesso necessario il ricorso a terapie avanzate, tra cui la stimolazione cerebrale profonda (Deep Brain Stimulation - DBS). Sebbene la DBS sia efficace nel trattamen...
Neurofilament chain is one of the biomarkers distinctively known for neurodegeneration and development of Parkinson's disease. Previous studies have shown a correlation between the presence of this biomarker alongside of cognitive symptoms in patients suffering from neurodegenerative disorders. In this dissertation, I will discuss diagnostic properties of neurofilament light chain in their association with cognitive deficits in PD.
Parkinson's Disease (PD) is characterized as an "α-synucleinopathy," denoting the accumulation of highly phosphorylated and abnormally aggregated α-synuclein. This condition significantly impacts individuals by presenting a spectrum of motor and non-motor symptoms. The neuronal loss in the substantia nigra, located in the midbrain, underlies PD, leading to dopaminergic deficiency and the disruption of the nigra-striatal pathway. This, in turn, may contribute to brain atrophy, white matter alt...