305 research outputs found
Designing a Distributed Network of Air Quality Sensors
The deterioration of human and environmental health due to worsening outdoor air quality is a serious global threat. A step towards improving the current state of ambient air worldwide is the increased collection of data for government policy, research, and general public use. Currently, reliable data is only collected at a handful of sites in the state of Arkansas and sparsely across the country. The purpose of this project was to design an inexpensive air quality sensor to saturate entire cities with nodes which transmit air data to a sensor for a web application to display. The prototype node was designed and implemented as a proof of concept with a projection for a node optimized for size, power, cost, and development time. The node uses solar power to charge a lead acid battery in order to support a Raspberry Pi Zero W equipped with air quality sensors using a FONA module to connect to the 2G network to transmit TCP packets to a Python server. The final prototype uses an automated script to collect sensor data, compile the data into a packet, and send to the TCP server to be inserted into the database. The web application uses REST endpoints on the server to execute HTTP requests by the application for data to populate the data and map pages. For future work, system testing should further optimize the prototype node as well as bring the nodal network into the Internet of Things movement
Clinical experience with pegylated hyaluronic acid fillers: A 3-year retrospective study
BACKGROUND: Hyaluronic acid fillers are the most used worldwide, thanks to the high biocompatibility and safety profile of HA and it is also the only substance that can be \u201cdissolved\u201d due to the hyaluronidase effect. AIM: A retrospective clinical evaluation of the outcomes following PEG cross-linked HA-based filler injection was performed. METHODS: Data were collected from December 2017 to June 2020. A total of 65 patients (12 M, 53 F), age ranging 28\u201362 year\u2019s old (mean age 42.3), were treated. Exclusion criteria were applied and in accord to treatment plan, were used specific site injections and fillers. Follow-up was evaluated between 6 months and 2 years. RESULTS: A total of 61 treatments using 124 vials of HA filler crosslinked with PEG were performed. CONCLUSION: In conclusion, from 2014, HA fillers having PEG as cross-linker agent have been introduced in the european market. Several papers have been published in order to evaluate the features of these fillers, although, to the best of our knowledge, this is the first clinical paper regarding their use
Governare la diversità . Dalla medicalizzazione della follia alla strategia dell’ordine
The new approach of medical knowledge to madness, based on the possibility of observing, investigating and curing the psychological disorder and affirmed by the new theories on the origin of deviance, has caused the progressive strengthening of internment as a response to the “question of madness” the 19th century. However, the real dynamics of psychiatric institutions revealed how these, although they were initially identified as places of care, soon proved instrumental to the control of the diversity practiced by what Foucault defines “disciplinary society”
Clinical Trial for Assessing the Effectiveness and Tolerability of the Medical Device Sunekos 200, Applied with Electroporator in Skin Ageing
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Biochar-based remediation of water and soils contaminated by organic compounds
Biochar is a carbonaceous material obtained by pyrolysis of vegetable biomasses. Due to its nature, biochar can be used as soil amendment to increase soil fertility and to mitigate climate change. In addition its particular porous structure and high specific surface area make it a very effective sorbent for organic and inorganic contaminant in soil and water. Therefore, the aim of this thesis was to evaluate the efficiency of poplar and conifer biochars in remediation of i) water and soil contaminated by phenanthrene (Phe) and pentachlorophenol (PCP) and ii) olive mill wastewater (OMW). Biochar from conifer removed more successfully contaminant molecules in Phe and PCP contaminated water solution also when it was confined in dialysis tube. Greater efficiency of conifer biochar was observed also in the treatment of contaminated soil leading to the consequent reduction of soil phytotoxicity. Conversely, biochar from poplar better performed the OMW remediation resulting in the reduction of total phenols (up to 72%) and phytotoxicity. Furthermore, soil amended with treated OMW showed beneficial changes in chemical and biochemical soil properties.
The aim of this thesis was also to establish an improved analysis method for black carbon metabolites measurements using ion chromatography in order to have information about the fate of black carbon (biochar) in soil. Black carbon metabolites are ubiquitous in soil like black carbon itself. However, black carbon concentration in soil is no good predictor about fate of black carbon degradation. Rather, physical, chemical and probably also biological soil properties yet to be identified, to control black carbon metabolism in soil
Variations of peel essential oils during fruit ripening in four lemon (Citrus limon (L.) Burm. F.) cultivars
Lemon processing procedures yield a significant amount of waste as peels, which are 57% of processed lemons and represent a possible source of bioactive compounds (essential oils, EOs). EOs were extracted from lemon fruits belonging to four cultivars harvested at four different sampling times (25 October, 23 November, 20 December, 1 February), characterized, and quantified through gas chromatography-mass spectrometry
Adverse events following covid-19 vaccine in patients previously injected with facial filler: Scoping review and case report
The \u201cVaccines and Related Biological Products Advisory Committee 17 December 2020 Meeting Briefing Document\u201d, formulated by the FDA, reported three cases of swelling in areas previously injected with HA filler, introducing the possible relationship between a COVID-19 vaccine and adverse events in areas previously injected with HA fillers. The aim of this research is to report a case of an adverse event following a COVID-19 vaccine in a patient previously injected with facial filler. Furthermore, a scoping review on the same topic was performed. The research was carried out on the electronic databases PubMed, Cochrane Library, Web of Science, Google Scholar and Scopus. The selection process identified four articles as eligible for inclusion in the review. Nineteen patients, including the described case report, who experienced an adverse event following a COVID-19 vaccine in areas previously injected with facial filler were identified. Adverse events following a COVID-19 vaccine in patients previously injected with facial filler appear to be rare. A high BDDE cross-linking rate and/or a low-molecular-weight hyaluronic acid filler may have a higher tardive adverse event rate when triggered
ICT nella didattica universitaria: esperienze di blended learning per favorire processi di work-life balance
Il lavoro proposto intende presentare un\u2019esperienza di blended learning, nella gestione e organizzazione di un intero corso di studi magistrale, rivolta ad una tipologia di studenti con particolari esigenze di work-life balance (lavoratrici e lavoratori studenti) al fine di indagare e valutare l\u2019efficacia e l\u2019efficienza del modello didattico. In particolare, secondo la prospettiva delle studentesse e degli studenti coinvolte/i, sono state prese in considerazione: l\u2019integrazione e la coerenza progettuale tra le attivit\ue0 in presenza e a distanza; le metodologie, le tecniche e gli strumenti proposti nelle attivit\ue0 online interne agli insegnamenti; il ruolo e la funzione dell\u2019 e-tutor
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