Academic literature on the topic 'Pedoni'
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Journal articles on the topic "Pedoni"
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J.J. Al-Sabah, Bashar, Hashim H. Kareem Aldhahi, and Awad A.S. Al-Zergani. "Al-kut Dam Sediments Content of Some Heavy Metals and Its Relationship with Pollution." Al-Qadisiyah Journal For Agriculture Sciences (QJAS) (P-ISSN: 2077-5822 , E-ISSN: 2617-1479) 7, no. 2 (2018): 23–35. http://dx.doi.org/10.33794/qjas.vol7.iss2.20.
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 This study has been carried out in Alkut city the center of Wasit province which is located about 180 km south of the capital Baghdad on one from the most important dams constructed on theriverTigris called Alkut Dam .Four pedons have been selected in this study, two pedons (A,B) are located in the lower part of dam and the other two pedons (C ,D) are located in the upper part of dam , sediments samples analysis for particle size distribution and total & available heavy metals concentration (Ni ، Cd ، Zn ، Pb ،Fe) in the water and sediments.
 Results show that the total concentration of nickel ranges between(104.2 - 178.4) mg.kg-1and the higher value has been found in the second depth (156-126)cm for pedon A and the lower value has been found in the second depth (50-30) for pedon D , while total cadmium concentration ranges between (6.1-2.2)mg.kg-1and the higher value has been found in the second depth (35-20) for pedon A at the lower part of dam and the lower value has been found in the sixth depth (73-93cm)for the same pedon , the values for total Zinc concentration ranges between (108-69) mg.kg-1 and the higher value has been found in the fifth depth (73-55)cm for pedon A at the lower part of dam and the lower value has been found in the last depth (120-100cm) for pedonD in the upper part of dam, the results of total lead concentration ranges between (24.2-11.35) mg.kg-1 and the higher value has been found in the first depth (0-20cm)cm for pedon A at the lower part of dam and the lower value has been found in the third depth (60-50cm) for pedonD in the upper part of dam , while the total concentration for iron (Fe) which ranges between (4595-2988) mg.kg-1 the higher value has been found in the second depth (20-50cm) for pedon A at the lower part of dam and the lower value has been found in the seventh depth (111-93cm) for the same pedon .As compared with critical limits , results show that total concentration of heavy metals for Cd, Pb, Zn and Ni in Sediments samples all has exceed the critical limits values except in some depths.
 The results for the available heavy metal concentrations show that the available nickel concentration ranges between(33.2-107.4)mg.kg-1 and the higher value has been found in the second depth (20-35)cm for pedon A at the lower part of dam and the lower value has been found in the second depth (30-50) for pedonD in the upper part of dam,while total cadmium concentration ranges between (0.21-0.48)mg.kg-1and the higher value has been found in the first depth (0-20)cm for pedon B at the lower part of dam and the lower value has been found in the sixth depth (73-93cm)for the pedon A at the lower part of dam , the values for the available Zinc concentration ranges between (56-111) mg.kg-1 and the higher value has been found in the tenth depth (191-231)cm for pedon A at the lower part of dam and the lower value has been found in the last depth (120-100cm) for pedonD in the upper part of dam, the results of available lead (pb) concentration ranges between (6.7-20.2) mg.kg-1 and the higher value has been found in the first depth (0-20cm)cm for pedon A at the lower part of dam and the lower value has been found in the third depth (60-50cm) for pedonD in the upper part of dam , while the available concentration for iron (Fe) which ranges between (39-74)mg.kg-1 the higher value has been found in the second depth (20-50cm) for pedon A at the lower part of dam and the lower value has been found in the eighth depth(111-126) for the same pedon,at the comparison of results for the available concentrations of the studied heavy metals it can be seenthat all values have exceeded the critical limits values according to Nunes etal 2014. in the other hand the results show that there is significant correlation between the total and available concentration for same heavy metalspairs of the correlation (r2) between the available and total concentration was 0.90 , 0.74 , 0.99, 0.99 and 0.58 for Ni , Cd , Zn , Pb and Fe respectively , in the other hand, the results show that the water concentration for heavy metals are 1.7 , 0.03 ,15 , 0.07 and 27 mg.l-1for Ni , Cd , Zn , Pb and Fe respectively , which indicate that all values have exceeded the critical limits according to Iraqi standards and FAW.
 
 
 
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Hikmatullah. "Andisols from Tondano Area, North Sulawesi: Properties and Classification." Journal of Tropical Soils 13, no. 1 (2008): 77–85. http://dx.doi.org/10.5400/jts.2008.v13i1.77-85.
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Three pedons of Andisol (TN-1, TN-2 and TN-3) developed from young volcanic materials of the Lokon, Soputan, and Lengkoan volcanoes respectively in the Tondano area, North Sulawesi, were studied in the field, and 18 soil samples were analysed in the laboratory for physical, chemical, and mineralogical properties, and they were classified according to Keys to Soil Taxonomy 2003. The results indicated that all the pedons meet the requirements of the andic soil properties, and thus classified into Andisol order. Pedon TN-1 meets bulk density < 0.90 g cm-3, P retention > 85%, and (Alo + 0.5Feo) content extracted by ammonium oxalate > 2.0%, while pedons TN-2 and TN-3 meet the requirements of P retention > 25%, (Alo + 0.5Feo) content > 0.4%, volcanic glass content > 5%, and value of [%(Alo+0.5Feo) x 15.625 + (% volcanic glass)] is > 36.25. Composition of sand mineral fraction indicate that pedon TN-1 and TN-3 show andesitic to basaltic volcanic materials, whereas pedon TN-2 with high olivin content belongs to basaltic volcanic materials. Clay minerals of all the pedons was dominated by hydrated-halloysite with few of disordered-kaolinite, which indicated a little weathering of the pedons. The pedons were classified at family level as Typic Hapludand, medial, amorphic, isothermic (TN-1), Humic Udivitrand, ashy, amorphic, isothermic (TN-2), and Alfic Hapludand, medial, glassy, isothermic (TN-3).
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Arocena, J. M., and P. Sanborn. "Mineralogy and genesis of selected soils and their implications for forest management in central and northeastern British Columbia." Canadian Journal of Soil Science 79, no. 4 (1999): 571–92. http://dx.doi.org/10.4141/s98-071.
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Soil properties in central and northeastern British Columbia are strongly influenced by parent materials because of geologically young till, glaciolacustrine, and glaciofluvial deposits. We examined pedogenesis on various parent materials to support studies of long-term forest productivity. We sampled nine pedons developed on till (Bobtail, Lucille Mountain, Skulow Lake, Log Lake, Topley, and Kiskatinaw), glaciofluvial (Bowron), and glaciolacustrine (Aleza Lake 1, 2) deposits. The Skulow Lake pedon is distinctive in the occurrence of talc, while the Lucille Mountain pedon has the only clay fraction in which kaolinite is absent. Other pedons on till contain mica, kaolinite, chlorite, smectite, and vermiculite. The Bowron pedon has mica, kaolinite, and chlorite, while the Aleza Lake pedons have mica, kaolinite, chlorite, and 2:1 expanding minerals. In pedons with low amount of 2:1 expanding clays in the C horizon, mica and chlorite appear to degrade into 2:1 expanding clays, while in pedons with C horizons containing 2:1 expanding clays, mica and chlorite seem stable and the formation of hydroxy-interlayered clays is the predominant process. Podzolization and lessivage are major pedogenic processes, while redoximorphic processes are observed in some pedons with illuvial Bt horizons. Significant soil compaction hazards are presented by the medium and fine soil surface textures. Although clay-rich Bt horizons may benefit soil nutrient regimes, conservation of nutrient-rich forest floors is important, given the low S contents in mineral soils. High contents of feldspars in these soils provide a large reserve of nutrients such as Ca and K. Key words: Clay minerals, parent material, podzolization, lessivage
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Mulyanto, Budi. "MORPHOLOGICAL, PHYSICAL, AND CHEMICAL CHARACTERISTICS OF SOME VOLCANIC SOILS OF MT. GALUNGGUNG." Jurnal Ilmu Tanah dan Lingkungan 2, no. 1 (2009): 25–32. http://dx.doi.org/10.29244/jitl.2.1.25-32.
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Results of the study on morphological, physical, and chemical characteristics of three pedons developed on volcanic materials of Mt. Galunggung, namely BM1, 8M2, and 8M3, showed that these pedons had a different stage of profile development. Pedon BM1 is classified as undeveloped, 8M2 is medium developed, and 8M3 is strongly developed. This is mainly caused by differences in the relative age of the parent rocks and elevation. Although classified as undeveloped, the soil represented by pedon BM1, the youngest, has immediately been used by farmers for rice cultivation because of water abundance, and high availability of P, and basic cations derived from weathering of easily weathered amorphous materials and minerals. According to the Soil Taxonomy system of the USDA (Soil Survey Staff, 1996), pedons 8M1, 8M2, and 8M3 are classified as Typic Udipsamment, Taptho Hapludandic Typic Troporthent, and humic Hapludult, respectively. Whilst, according to the FAO/UNESCO system (1988), these pedons are classified as Eutric Regoso/, Eutric Regosol and Humic Aliso/, respectively.
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Yli-Halla, Markku. "Classification of acid sulphate soils of Finland according to Soil Taxonomy and the FAO/Unesco legend." Agricultural and Food Science 6, no. 3 (1997): 247–58. http://dx.doi.org/10.23986/afsci.72788.
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In order to place acid sulphate soils (a.s. soils) of Finland in an international context, five pedons from cultivated a.s. soils from Liminka, Ylistaro and Laitila on the western coast of Finland were analyzed and classified according to Soil Taxonomy and the revised legend of the FAO/Unesco Soil Map of the World. Three of the pedons (Liminka 1 and 2, Laitila 1) had sulfuric horizons within 50 cm of soil surface and qualify as Typic Sulfaquepts. One pedon (Ylistaro) had a sulfuric horizon at the depth of 100-150 cm and was classified as a Sulfic Cryaquept. The fifth pedon (Laitila 2) did not have either a sulfuric horizon or sulfidic materials, but it had a pH
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Hugelius, G., J. G. Bockheim, P. Camill, et al. "A new data set for estimating organic carbon storage to 3 m depth in soils of the northern circumpolar permafrost region." Earth System Science Data 5, no. 2 (2013): 393–402. http://dx.doi.org/10.5194/essd-5-393-2013.
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Abstract. High-latitude terrestrial ecosystems are key components in the global carbon cycle. The Northern Circumpolar Soil Carbon Database (NCSCD) was developed to quantify stocks of soil organic carbon (SOC) in the northern circumpolar permafrost region (a total area of 18.7 × 106 km2). The NCSCD is a geographical information system (GIS) data set that has been constructed using harmonized regional soil classification maps together with pedon data from the northern permafrost region. Previously, the NCSCD has been used to calculate SOC storage to the reference depths 0–30 cm and 0–100 cm (based on 1778 pedons). It has been shown that soils of the northern circumpolar permafrost region also contain significant quantities of SOC in the 100–300 cm depth range, but there has been no circumpolar compilation of pedon data to quantify this deeper SOC pool and there are no spatially distributed estimates of SOC storage below 100 cm depth in this region. Here we describe the synthesis of an updated pedon data set for SOC storage (kg C m−2) in deep soils of the northern circumpolar permafrost regions, with separate data sets for the 100–200 cm (524 pedons) and 200–300 cm (356 pedons) depth ranges. These pedons have been grouped into the North American and Eurasian sectors and the mean SOC storage for different soil taxa (subdivided into Gelisols including the sub-orders Histels, Turbels, Orthels, permafrost-free Histosols, and permafrost-free mineral soil orders) has been added to the updated NCSCDv2. The updated version of the data set is freely available online in different file formats and spatial resolutions that enable spatially explicit applications in GIS mapping and terrestrial ecosystem models. While this newly compiled data set adds to our knowledge of SOC in the 100–300 cm depth range, it also reveals that large uncertainties remain. Identified data gaps include spatial coverage of deep (> 100 cm) pedons in many regions as well as the spatial extent of areas with thin soils overlying bedrock and the quantity and distribution of massive ground ice. An open access data-portal for the pedon data set and the GIS-data sets is available online at http://bolin.su.se/data/ncscd/. The NCSCDv2 data set has a digital object identifier (doi:10.5879/ECDS/00000002).
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Oliveira, Lindomário Barros de, Maria da Graça de Vasconcelos Xavier Ferreira, and Flávio Adriano Marques. "Characterization and classification of two soils derived from basic rocks in Pernambuco State Coast, Northeast Brazil." Scientia Agricola 61, no. 6 (2004): 615–25. http://dx.doi.org/10.1590/s0103-90162004000600009.
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Geomorphic surfaces that present soils derived from basic rocks under warm and humid climate are unique scenarios for studying tropical soils. This paper aimed to characterize and classify two pedons derived from basalt at the Atlantic Forest Zone, Pernambuco State, Northeastern coast of Brazil. Two representative pedons (P1 and P2) were selected on a hillslope at the Cabo de Santo Agostinho municipality. Field macromorphological descriptions were carried out and soil horizon were sampled for physical, chemical, mineralogical and micromorphological characterization. The soils were classified, according to the Brazilian System of Soil Classification (and US Soil Taxonomy) as: "Latossolo Vermelho-Amarelo distroférrico argissólico" (Typic Hapludox) (P1) and "Nitossolo Vermelho distroférrico típico" (Rhodic Paleudult) (P2). Pedon 1 differs from Pedon 2 in some aspects. For instance, P1 presents more yellowish colors, absence of clay illuviation, more friable consistence and the prismatic structure undergoes transformation to angular and subangular blocks. Pedon 2 presents ferri-argilans and leptocutans which indicate that vertical and lateral illuviation of clay is an active process in their formation. These chemically poor and mineralogically uniform soils are a result of the high temperature and rainfall of the studied area.
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Bomfim, Marcela Rebouças, Jorge Antonio Gonzaga Santos, Oldair Vinhas Costa, et al. "Genesis, Characterization, and Classification of Mangrove Soils in the Subaé River Basin, Bahia, Brazil." Revista Brasileira de Ciência do Solo 39, no. 5 (2015): 1247–60. http://dx.doi.org/10.1590/01000683rbcs20140555.
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ABSTRACT Preservation of mangroves, a very significant ecosystem from a social, economic, and environmental viewpoint, requires knowledge on soil composition, genesis, morphology, and classification. These aspects are of paramount importance to understand the dynamics of sustainability and preservation of this natural resource. In this study mangrove soils in the Subaé river basin were described and classified and inorganic waste concentrations evaluated. Seven pedons of mangrove soil were chosen, five under fluvial influence and two under marine influence and analyzed for morphology. Samples of horizons and layers were collected for physical and chemical analyses, including heavy metals (Pb, Cd, Mn, Zn, and Fe). The moist soils were suboxidic, with Eh values below 350 mV. The pH level of the pedons under fluvial influence ranged from moderately acid to alkaline, while the pH in pedons under marine influence was around 7.0 throughout the profile. The concentration of cations in the sorting complex for all pedons, independent of fluvial or marine influence, indicated the following order: Na+>Mg2+>Ca2+>K+. Mangrove soils from the Subaé river basin under fluvial and marine influence had different morphological, physical, and chemical characteristics. The highest Pb and Cd concentrations were found in the pedons under fluvial influence, perhaps due to their closeness to the mining company Plumbum, while the concentrations in pedon P7 were lowest, due to greater distance from the factory. For containing at least one metal above the reference levels established by the National Oceanic and Atmospheric Administration (United States Environmental Protection Agency), the pedons were classified as potentially toxic. The soils were classified as Gleissolos Tiomórficos Órticos (sálicos) sódico neofluvissólico in according to the Brazilian Soil Classification System, indicating potential toxicity and very poor drainage, except for pedon P7, which was classified in the same subgroup as the others, but different in that the metal concentrations met acceptable standards.
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Hugelius, G., C. Tarnocai, J. G. Bockheim, et al. "Short communication: a new dataset for estimating organic carbon storage to 3 m depth in soils of the northern circumpolar permafrost region." Earth System Science Data Discussions 6, no. 1 (2013): 73–93. http://dx.doi.org/10.5194/essdd-6-73-2013.
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Abstract. High latitude terrestrial ecosystems are key components in the global carbon (C) cycle. The Northern Circumpolar Soil Carbon Database (NCSCD) was developed to quantify stocks of soil organic carbon (SOC) in the northern circumpolar permafrost region (18.7 × 106 km2). The NCSCD is a digital Geographical Information systems (GIS) database compiled from harmonized regional soil classification maps, in which data on soil coverage has been linked to pedon data from the northern permafrost regions. Previously, the NCSCD has been used to calculate SOC content (SOCC) and mass (SOCM) to the reference depths 0–30 cm and 0–100 cm (based on 1778 pedons). It has been shown that soils of the northern circumpolar permafrost region also contain significant quantities of SOC in the 100–300 cm depth range, but there has been no circumpolar compilation of pedon data to quantify this SOC pool and there are no spatially distributed estimates of SOC storage below 100 cm depth in this region. Here we describe the synthesis of an updated pedon dataset for SOCC in deep soils of the northern circumpolar permafrost regions, with separate datasets for the 100–200 cm (524 pedons) and 200–300 cm (356 pedons) depth ranges. These pedons have been grouped into the American and Eurasian sectors and the mean SOCC for different soil taxa (subdivided into Histels, Turbels, Orthels, Histosols, and permafrost-free mineral soil taxa) has been added to the updated NCSCDv2. The updated version of the database is freely available online in several different file formats and spatial resolutions that enable spatially explicit usage in e.g. GIS and/or terrestrial ecosystem models. The potential applications and limitations of the NCSCDv2 in spatial analyses are briefly discussed. An open access data-portal for all the described GIS-datasets is available online at: http://dev1.geo.su.se/bbcc/dev/v3/ncscd/download.php. The NCSCDv2 database has the doi:10.5879/ECDS/00000002.
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Salinas, Andrea, and Bryan Tillaguango. "Crecimiento económico e inversión extranjera directa y su incidencia en la desigualdad a nivel mundial: un enfoque de cointegración y causalidad en datos de panel." Revista Vista Económica 10, no. 1 (2022): 87–99. http://dx.doi.org/10.54753/rve.v10i1.1295.
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El objetivo de esta investigación, es analizar el nexo entre el Índice de Gini, el crecimiento económico y la inversión extranjera directa (IED) en 100 países a nivel mundial, periodo 1980-2015. Se implementó técnicas de cointegración de datos de panel, como son los modelos de cointegración de Pedoni (1999) que evalúa el largo plazo, mientas que, para el corto plazo se implementó la prueba de cointegración de Westerlund (2007). Asimismo, para obtener la fuerza del vector de cointegración se utilizó modelos de Mínimos Cuadrados Ordinarios Dinámicos (DOLS) y Mínimos Cuadrados Ordinarios Dinámicos (PDOLS). En el caso de la causalidad se implementó la prueba propuesta por Dumitrescu /& Hurlin (2012). Los resultados de las pruebas de cointegración nos muestran que el Índice de Gini, el crecimiento económico y la IED tienen un movimiento conjunto a corto y largo plazo. Los modelos PDOLS y DOLS muestran que el vector de cointegración entre el Índice de Gini y el crecimiento económico es más contundente en los PIMB y PIMA. Por otra parte, los resultados de la causalidad de Dumitrescu & Hurlin (2012) confirman la existencia de causalidad bidireccional entre la desigualad y el producto interno bruto en los países de ingresos medios bajos (PIMB).
Dissertations / Theses on the topic "Pedoni"
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Paolini, Marzia. "Rilevamento di pedoni con tecniche di visione artificiale." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amslaurea.unibo.it/4657/.
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Paganelli, Lorenzo. "Simulazione di evacuazione di folle in Alchemist: un modello di mappa mentale per pedoni cognitivi." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/20540/.
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La simulazione computerizzata di folle in movimento è stato un campo piuttosto attivo recentemente, con applicazioni che vanno dall’intrattenimento alla gestione della sicurezza in luoghi pubblici o privati. Le simulazioni di folle devono prendere in considerazione non solo gli aspetti fisici dell’ambiente e dei pedoni, ma anche i fattori psicologici e sociali che hanno un effetto sul movimento delle persone. La capacità di orientarsi all’interno di un ambiente è una caratteristica fondamentale dell'essere umano e in quanto tale è indispensabile per una simulazione realistica. Diversi modelli assumono che i pedoni abbiano conoscenza totale dell’ambiente, cioè che ne conoscano la topologia e le metriche per intero. Ciò può essere ammissibile quando il processo di navigazione è banale, ad esempio in una piazza, tuttavia in ambienti più complessi questa è una grezza approssimazione, in quanto difficilmente ciascun pedone ne possiede una conoscenza completa (specie se molte delle persone coinvolte visitano l’edificio per la prima volta). Lo scopo del lavoro corrente è modellare la rappresentazione mentale che ciascun pedone ha dell’ambiente circostante, spesso parziale e inaccurata, comunemente nota come mappa cognitiva, e il processo mentale in atto in ogni persona che usa tali informazioni per scegliere quale percorso o direzione seguire (cioè orientarsi). I modelli descritti sono poi implementati all’interno del simulatore Alchemist, l'approccio adottato è ad agenti.
Di particolare interesse per il lavoro corrente sono le simulazioni di evacuazioni di folle, per il loro valore nel prevenire situazioni disastrose durante la pianificazione di eventi o la progettazione di edifici. Detto ciò, i modelli presentati sono pensati per essere usati in qualsiasi tipo di simulazione.
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Corazza, Maria Vittoria. "Il disegno dello spazio urbano per l'individuazione dell'Isola Ambientale. Spazio collettivo, disegno di strade e controllo del traffico per un nuovo concetto di mobilità." Doctoral thesis, La Sapienza, 1999. http://hdl.handle.net/11573/917213.
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Magri, Filippo. "Progettazione e sviluppo di un' applicazione mobile basata su Wi-Fi Direct per la comunicazione tra veicoli e pedoni." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amslaurea.unibo.it/10888/.
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Questo documento di tesi si incentra principalmente sullo studio delle reti wireless mobili e dei relativi scenari di utilizzo.
In particolare, come esse vengono applicate per il riconoscimento e la prevenzione di incidenti stradali. Vista l’importanza di questo problema a livello di sicurezza stradale, ho deciso di sviluppare un' applicazione per smartphone Android, in grado di riconoscere le attività di uso quotidiano dell’utente e associarle a dei comportamenti, come ad esempio quello di un ciclista, di un pedone o di un automobilista.
Nel caso in cui, in uno scenario stradale i dispositivi si trovassero ad una distanza ravvicinata, possono comunicare tramite una connessione Wi-Fi Direct il loro ruolo e lanciare messaggi di
pericolo per avvisare la loro presenza, in modo da prevenire collisioni stradali.
La realtà in cui si vuole collocare questa applicazione è quella che viene chiamata Pedestrian Detection, già idea di General Motors, che la sta sviluppando sui futuri veicoli che metterà in produzione nei prossimi anni e che sicuramente integreranno funzionalità
aggiuntive per la segnalazione di pericoli tramite smartphone e Wi-Fi Direct.
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Nenni, Luca. "Simulazioni realistiche di algoritmi di Crowd Steering." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amslaurea.unibo.it/6927/.
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La simulazione realistica del movimento di pedoni riveste una notevole importanza nei mondi dell'architettonica e della sicurezza (si pensi ad esempio all'evacuazione di ambienti), nell'industria dell'entertainment e in molti altri ambiti, importanza che è aumentata negli ultimi anni.
Obiettivo di questo lavoro è l'analisi di un modello di pedone esistente e l'applicazione ad esso di algoritmi di guida, l'implementazione di un modello più realistico e la realizzazione di simulazioni con particolare attenzione alla scalabilità.
Per la simulazione è stato utilizzato il framework Alchemist, sviluppato all'interno del laboratorio di ricerca APICe, realizzando inoltre alcune estensioni che potranno essere inglobate nel pacchetto di distribuzione del sistema stesso.
I test effettuati sugli algoritmi presi in esame evidenziano un buon guadagno in termini di tempo in ambienti affollati e il nuovo modello di pedone risulta avere un maggiore realismo rispetto a quello già esistente, oltre a superarne alcuni limiti evidenziati durante i test e ad essere facilmente estensibile.
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GILTRI, MARTA. "From Real Affective States towards Affective Agents Modeling." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2023. https://hdl.handle.net/10281/404517.
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La modellazione di agenti che tiene conto di emozioni e stati affettivi costituisce un argomento di discussione piuttosto importante nell’ambito della simulazione ad agenti, soprattutto per via di come introdurre parametri affettivi nella modellazione possa contribuire a rendere le simulazioni più realistiche.
In questo ambito di ricerca, però, il modo di introdurre nei modelli parametri in grado di regolare lo stato affettivo degli agenti per da influenzarne azioni e comportamenti è spesso basato sui modelli emozionali che si trovano in letteratura, oppure sulle teorie e i modelli fisici che vengono solitamente utilizzati per la modellazione di pedoni e folle.
L’approccio presentato in questo lavoro, quindi, mira ad approcciare il problema dal punto di vista dei dati, puntando ad arrivare alla modellazione di agenti affettivi partendo da dati provenienti da persone reali ed acquisiti tramite esperimenti creati ad hoc con il preciso obiettivo di studiare reazioni e comportamenti da poter poi tradurre in modellazione.
In particolare, in questo lavoro il problema viene affrontato concentrandosi in particolare sull’ambito pedonale, osservando diversi tipi di interazione coinvolgenti pedoni tramite quattro diversi esperimenti atti a raccogliere dati in grado di descrivere le interazioni operate dai soggetti per poi inserirle in un contesto di modellazione.
Gli esperimenti vengono effettuati in vivo, in vitro e online, osservando le interazioni di pedoni con veicoli, ostacoli in movimento ed altri pedoni, raccogliendo dati riguardo queste diverse interazioni tramite dati fisiologici e questionari atti a profilare i partecipanti e a fornire maggiori informazioni riguardo al comportamento e alle reazioni da loro dimostrate.
I dati raccolti vengono quindi utilizzati per la modellazione, prima in ambito di automi cellulari e poi, successivamente, nell’ambito dei sistemi multi-agente, mostrando come le informazioni ricavate dai dati vengano integrate all’interno dei modelli al fine di includere parametri affettivi che, in base ai valori assegnati, influenzino in un certo modo il comportamento degli agenti.
Vengono poi proposte alcune simulazioni derivanti dai modelli, ai fini di osservare come i parametri affettivi introdotti influenzino il comportamento degli agenti in azione in determinate situazioni.<br>The modeling of agents involving emotions and affective states constitutes a relevant discussion topic in the research concerning multi-agent simulations, especially because of how the introduction of affective parameters inside the modeling process could effectively make the produced simulations more realistic.
In this research area, though, the modality in which parameters regulating the affective state of agents are introduced into models, so that the agents’ behaviour and actions are influenced by them, is always based on emotional models found in literature, or on physics theories and models usually involved for the modeling of pedestrians and crowds.
The approach this work presents, then, aims at tackling this problem from the point of view of data, thus wanting to get to affective agent modeling starting from data coming from real people, acquired through ad-hoc experiments with the precise goal of observing reactions and behaviour to be later translated inside a model.
In particular, the focus of this work falls on the research on pedestrians and walkability, observing different types of interactions involving pedestrians through four different experiment through which gather data able to describe the participants’ interactions to then implement them in the modeling step.
The proposed experiments are executed in-vivo, in-vitro and online, observing pedestrian interactions with vehicles, moving obstacles and other pedestrians, gathering data regarding these interactions through physiological data and questionnaires made for profiling purposes and in order to have more information regarding the subjects’ behaviour and reactions.
The gathered data is then used for modeling, firstly from the point of view of cellular automata and then passing on to the multi-agent systems perspective, showing how the information obtained from the data is introduced inside the models to be parametrized in affective parameters that, depending on the assigned values, could influence in a certain way the behaviour of the agents.
After that, some simulation instances derived from the models are presented, as to observe how the affective parameters that were introduced in the models actively influence the behaviour of agents acting and moving in certain situations.
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Krus, Tiago de Carvalho Almeida Palma. "Análise dinâmica e controlo passivo de vibrações de uma ponte pedonal." Master's thesis, Faculdade de Ciências e Tecnologia, 2012. http://hdl.handle.net/10362/8875.
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Dissertação para obtenção do Grau de Mestre em
Engenharia Civil – Perfil de Estruturas<br>Com o crescente desenvolvimento das técnicas construtivas, as estruturas tornaram-se mais leves e esbeltas. Desta forma terá de existir uma maior preocupação da parte do projectista em relação às vibrações provocadas pelas acções dinâmicas. Neste trabalho, é estudada uma ponte pedonal metálica que se encontra sobre a Avenida Marechal Gomes da Costa, em Lisboa, tendo como objectivo a análise da resposta deste tipo de estruturas perante as acções dinâmicas causadas pelos peões.
São desenvolvidos vários modelos numéricos e analíticos de forma a estudar as forças induzidas pelos peões, fazendo-se uma caracterização exaustiva dos vários tipos de movimento, bem como a possibilidade de sincronização num grupo de peões. Foi realizada ainda uma análise de vibrações, tendo os limites normativos sido ultrapassados. Por forma a ser feita a validação dos modelos são realizados vários ensaios experimentais in-situ. Para controlar os problemas de vibrações excessivas, é proposta uma solução de controlo passivo. A resposta da estrutura com e sem sistema de controlo é analisada com o auxílio do programa SAP2000.
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GOLFO, Salvatore. "ANALISI DELLA GRAVITA’ DELLE LESIONI NELL’IMPATTO VEICOLO PEDONE." Doctoral thesis, Università degli Studi di Palermo, 2021. http://hdl.handle.net/10447/515103.
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Lo scopo principale di questa tesi consiste nella valutazione dei danni provocati da un utente debole della strada in un incidente con un veicolo e allo sviluppo di un metodo
versatile che possa simulare qualsiasi circostanza. I danni vengono quantificati sulla base di alcuni criteri di lesione quali HIC, TTI, criterio dei 3 ms, forze di contatto, ecc… Inoltre è stato eseguito un modello teorico per la validazione dei risultati ottenuti dal punto di vista matematico e una serie di confronti, dei dati ottenuti con delle fonti presenti in bibliografia. A tal fine verranno valutati quelle che sono le condizioni più gravose per questo genere di impatto e alcuni suggerimenti atti a limitarli.
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Fontes, André de Moura Leitão Cerejeira. "Ambiente pedonal nas cidades." Master's thesis, Instituições portuguesas -- -Universidade do Minho -- -Escola de Engenharia -- -Departamento de Engenharia Civil, 2003. http://dited.bn.pt:80/30098.
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Costa, Catarina Viana. "Mobilidade pedonal e pessoas idosas." Master's thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/15542.
Full textAbstract:
Mestrado em Gerontologia<br>Enquadramento: O envelhecimento populacional acarreta consequências na sociedade em geral, exigindo a formulação de políticas públicas capazes de minimizar esses efeitos e contribuir para a melhoria da qualidade de vida das pessoas idosas. A mobilidade pedonal é uma das atividades mais praticadas pelos idosos, como simples forma de deslocação, enquanto prática desportiva ou como atividade lúdica. Neste contexto, o ambiente construído e a (in)existência de atividades dirigidas aos idosos podem constituir fatores alavancadores ou limitadores dessa mobilidade. Atuar sobre esses fatores contribui significativamente para a saúde, bem-estar e qualidade de vida das pessoas idosas.
Embora seja uma temática que tem merecido crescente atenção, ao nível académico e na arena política, há poucos estudos que analisam a relação mobilidade pedonal/ambiente construído/atividades indutoras de mobilidade pedonal na vertente das políticas públicas. A ausência destes estudos no caso português é ainda mais visível, justificando o aprofundamento desta questão num contexto específico.
Objetivos: Este estudo tem como objetivo geral perceber que políticas públicas locais podem ser formuladas no sentido de promover uma maior mobilidade pedonal por parte das pessoas idosas. Pretende-se também compreender de que forma é que o ambiente construído e as atividades ocupacionais dirigidas às pessoas idosas constituem fatores alavancadores ou inibidores da mobilidade pedonal. Desta forma, é necessária a compreensão da relação existente entre os fatores que caracterizam a mobilidade pedonal, o ambiente construído e as atividades indutoras de mobilidade do ponto de vista das políticas públicas, num contexto territorial específico: concelho de Viseu.
Metodologia: A componente empírica da investigação está direcionada num desenho de estudo exploratório com abordagem qualitativa, a desenvolver-se no contexto do concelho de Viseu. Com base em análise documental e na realização de entrevistas conduzidas presencialmente a um conjunto de atores-chave da administração local e organizações não-governamentais, a recolha e o tratamento de informação incidiram sobre dois domínios complementares: relação ambiente construído/mobilidade pedonal e relação atividades de apoio a idosos/mobilidade pedonal.
Resultados: Os resultados obtidos para o caso do concelho de Viseu mostram que, embora sejam desenvolvidas intervenções no âmbito do ambiente construído e no desenvolvimento de atividades para as pessoas idosas, persiste uma visão e intervenção fragmentadas. Acresce que as próprias dimensões integrantes do ambiente construído não são levadas em consideração de uma forma global, mas antes parcelar, resolvendo-se situações pontuais conforme as prioridades e os recursos percecionados pelos atores locais. Já no que respeita às atividades, o município de Viseu tem apostado na vertente física dos indivíduos, apresentando resultados significativos no que respeita à saúde e bem-estar das pessoas idosas.
Conclusão:
Os principais resultados sugerem que há ainda uma necessidade de se trabalhar esta temática no município de Viseu, procurando criar políticas de articulação entre as dimensões do ambiente construído e das atividades para as pessoas idosas, uma vez que só a articulação entre estes fatores pode conduzir à definição de políticas de sucesso para a promoção da mobilidade pedonal das pessoas idosas.<br>Background: Population aging has consequences in society at large, requiring the formulation of public policies to minimize these effects and contribute to improving the quality of life of elderly people. The pedestrian mobility is one of the activities most practiced by the elderly, as a simple way of moving as sport or as a recreational activity. In this context, the built environment and the (in) existence of activities for the elderly may be leveraging factors or restraining of this mobility. Acting on these factors contributes significantly to the health, well-being and quality of life of elderly people. Although it is a topic that has received increasing attention at the academic level and in the political stage, there are few studies that analyze the relationship pedestrian mobility / built environment / inducer activity pedestrian mobility for purposes of public policy. The absence of such studies in the Portuguese case is even more visible, justifying the further development of this issue in a specific context.
Objectives: This study has the general objective to realize that local public policies can be formulated to promote increased pedestrian mobility from older people. It is also intended to understand how is that the built environment and occupational activities for the elderly are leveraging factors or pedestrian mobility inhibitors. In this way, understanding the relationship between the factors that characterize the pedestrian mobility is required, the built environment and carry mobility activities from the point of view of public policies in a specific local context: Viseu county.
Methods: The empirical component of the research is directed in an exploratory study design with a qualitative approach, to be developed in the context of Viseu municipality. Based on document analysis and interviews conducted in person to a number of key actors local administration and non-governmental organizations, the collection and processing of information focused on two complementary areas: relationship built environment / pedestrian mobility and relationship activities supporting elderly / pedestrian mobility.
Results: The results obtained in the case of Viseu municipality show that while interventions are carried out under the built environment and development activities for the elderly, there remains a fragmented vision and intervention. Moreover, the very environmentally members built dimensions are not taken into account in a global way, but rather piecemeal, by solving specific situations as priorities and perceived resources by local actors. However, with respect to the activities, the city of Viseu has focused on the physical aspect of individuals, with significant results as regards the health and well-being of elderly people.
Conclusion: The main results suggest that there is still a need to work this theme in the city of Viseu, trying to create articulation policies between the environmental dimensions built and activities for the elderly, since only the relationship between these factors can lead to definition of successful policies to promote pedestrian mobility of elderly people.
Books on the topic "Pedoni"
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Pierluigi, Nicolin, ed. Conflitti: Architettura contemporanea in Italia : vecchio nuovo, pedoni automobili, ordinario spettacolare, high low tech, volti maschere, verde cemento, casermoni villette, antichi moderni. Skira, 2005.
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Pierluigi, Nicolin, and Complesso Monumentale di Santa Sofia (Salerno, Italy), eds. Conflitti: Architettura contemporanea in Italia : vecchio nuovo, pedoni automobili, ordinario spettacolare, high low tech, volti maschere, verde cemento, casermoni villette, antichi moderni. Skira, 2005.
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Rajab, Shawal. Peduli yang tak peduli: Kumpulan sajak. Dewan Bahasa dan Pustaka Brunei, Kementerian Kebudayaan, Belia dan Sukan, 2007.
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Lyle, Rexer, and Tonelli Marco, eds. Beatrice Pediconi: Red. De Luca editori d'arte, 2011.
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Budianta, Eka. Semua bisa peduli. Lembaga Penelitian, Universitas Padjadjaran, 2007.
Find full textBook chapters on the topic "Pedoni"
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Gooch, Jan W. "Pedion." In Encyclopedic Dictionary of Polymers. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_8511.
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Butz, Anke, and Sieglinde Jornitz. "peDOCS." In Offen und vernetzt für alle. Universitätsverlag Kiel | Kiel University Publishing, 2021. http://dx.doi.org/10.38072/978-3-928794-59-6/p8.
Full textAbstract:
Im Beitrag wird nachgezeichnet, wie der Zugang zu Open-Access-Publikationen der Erziehungswissenschaft in Deutschland gestaltet ist. Das Besondere hierbei ist, dass die Erziehungswissenschaft über einen fachlichen Open-Access-Dokumentenserver verfügt, der in enger Kooperation mit Verlagen, Vereinen und weiteren Gruppen von Autor*innen aus der Wissenschaft getragen wird. Dieser fachspezifische Zugang unterscheidet das Repositorium von einem institutionellen und macht die Zusammenarbeit mit den verschiedenen Akteuren erst möglich.
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Roecker, Stephen, Jay Skovlin, Dylan Beaudette, and Skye Wills. "Digital Summaries of Pedon Descriptions." In Progress in Soil Science. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-28295-4_17.
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Pedone, Valentina. "Cinesità fluide: avventure di cinesi nel mondo." In Traduzione di A China fica ao lado / La Cina è accanto. Firenze University Press, 2022. http://dx.doi.org/10.36253/978-88-5518-637-7.03.
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The article by Valentina Pedone focuses on Chinese migration flows to the South-East Asia, offering a wide historical view of those migration flows and a very interesting analysis of the literary works which have been edited by Chinese or Chinese descendants abroad.
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Mausbach, M. J., and G. T. Stubbendieck. "Microcomputer Processing and analysis of Pedon Descriptions." In Soil Survey Techniques. Soil Science Society of America, 2015. http://dx.doi.org/10.2136/sssaspecpub20.c3.
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Radcliffe, D. E., S. M. Gupte, and J. E. Box. "Solute transport at the pedon and polypedon scales." In Soil and Water Quality at Different Scales. Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-017-3021-1_7.
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Steiner, G., and C. Zimmerer. "Poly(3,4-ethylenedioxythiophene) (PEDOT)." In Polymer Solids and Polymer Melts – Definitions and Physical Properties I. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-32072-9_128.
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Fan, Zeng, and Jianyong Ouyang. "CHAPTER 4. PEDOT-based Thermoelectrics." In Energy and Environment Series. Royal Society of Chemistry, 2019. http://dx.doi.org/10.1039/9781788016230-00117.
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Lurie, David J. "Proton-Electron Double-Resonance Imaging (PEDRI)." In In Vivo EPR (ESR). Springer US, 2003. http://dx.doi.org/10.1007/978-1-4615-0061-2_20.
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Paravano, Cristina. "“Peden bras vidne whee bis cregas”." In The Dialects of British English in Fictional Texts. Routledge, 2021. http://dx.doi.org/10.4324/9781003017431-8.
Full textConference papers on the topic "Pedoni"
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Arras, Francesca, Arnaldo Cecchini, Elisa Ghisu, Paola Idini, and Valentina Talu. "Perché e come promuovere la camminabilitá urbana a partire dalle esigenze degli abitanti piú svantaggiati: il progetto "Extrapedestri. Lasciati conquistare dalla mobilità aliena!"." In International Conference Virtual City and Territory. Centre de Política de Sòl i Valoracions, 2014. http://dx.doi.org/10.5821/ctv.7962.
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La città contemporanea è una città a misura di automobilista. Chi non vuole o non può usare
 l'automobile per spostarsi non è in grado di esercitare pienamente il proprio diritto urbano di
 accesso ed uso degli spazi e delle strade sottratti dalle automobili all'uso pubblico e collettivo.
 Il prerequisito per la riconquista di questo diritto urbano negato è la promozione di un vero e
 proprio cambiamento culturale in materia di mobilità, attraverso il coinvolgimento consapevole e
 responsabile degli abitanti nelle politiche e nei progetti di promozione della mobilità altra, in
 particolare di coloro che subiscono la maggior parte delle conseguenze negative determinate
 dalla presenza invasiva delle automobili nella città: bambini, anziani, persone disabili e pedoni
 (e ciclisti) in generale. Nell'articolo descriveremo il progetto pilota "Extrapedestri. Lasciati conquistare dalla mobilità
 aliena!" che si pone l'obiettivo di promuovere la camminabilità urbana di due quartieri marginali
 della città di Sassari (e, in prospettiva, di tutta la città, trattandosi un progetto facilmente
 replicabile) a partire dalle esigenze, dai desideri e dalla "capacità di disobbedienza" dei bambini,
 uno dei gruppi di abitanti più svantaggiati in materia di mobilità. Contemporary city is a car-friendly city. Those who cannot or do not want to use a car are not
 capable to fully exercise their fundamental urban right to access and to use the public spaces
 and the streets.
 In this paper, we argue that it is possible to make more effective policies aimed at building
 walkable cities making reference to the desires and needs of disadvantaged groups. In
 particular, we concentrate on children as one of the most vulnerable groups of inhabitants of the
 city. The role children can play in improving urban quality of life is fundamental, for a number of
 reasons, most important of which, for the purpose of this paper, is their "capability of
 disobedience" which might be used as a force of urban transformation.
 Then, we present one project through which we try to promote the urban walkability of the city of
 Sassari starting from children's involvement: "ExtraPedestrians: let yourself be conquered by
 the 'alien' mobility".
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Sofuoğlu, Emrah, Oktay Kızılkaya, and Ahmet Ay. "The Relationship between Corruption and Economic Growth: The Case of Newly Industrialized Countries." In International Conference on Eurasian Economies. Eurasian Economists Association, 2017. http://dx.doi.org/10.36880/c08.01940.
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Studies on corruption have been increasing in the literature recently. The effects of corruption, especially on macroeconomic variables, are a matter of curiosity for researchers. The aim of this study is to examine the relationship between corruption and economic growth. In this sense, Newly Industrialized Countries (NIC) are investigated in the study. The study covers the period 2001-2014 and to determine the long-term relationship, Pedroni cointegration test, panel FMOLS and panel DOLS coefficient estimators are utilised. According to the results of Pedroni cointegration test, there is a long-term relationship between corruption and economic growth. In addition, both panel FMOLS and DOLS results indicate that rise in corruption index contributes to higher economic growth in related countries.
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Esaa, Ayat Abdelrahim Suliman, Harun Bal, and Erhan İşcan. "The Export-Led Growth Hypothesis: A Panel Cointegration Approach in the Middle East and North Africa Countries (1980-2017)." In International Conference on Eurasian Economies. Eurasian Economists Association, 2019. http://dx.doi.org/10.36880/c11.02296.
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This study examines the hypothesis of the Export-Led Growth in the seven selected Middle East and North Africa countries, the hypothesis state that export growth driven by export promotion policies enhances overall economic growth. Empirical investigations have tended to focus attention on the direction of causality between exports and economic growth using Granger causality tests. However, the empirical results based on these tests are, at best, mixed and often contradictory.
 The paper employs panel data analysis by utilizing the Pedroni panel cointegration, Pedroni Dynamic Ordinary Least Squares and Fully Modify Ordinary Least Squares, and Canning-Pedroni causality methods, a recent development in panel data econometrics, properties of integration and cointegration and consistency of parameters. The study considers the following three variables; Real Gross Domestic Product (GDP), Real exports (EXP) and Real import (IMP). Annual secondary data are obtained from the World Bank Development Indicator for seven MENA countries, Namely, Algeria, Egypt, Sudan, Jordan, Saudi Arabia, UAE, and Qatar.
 The empirical results emphasize the existence of a positive relationship between Export and GDP. Results of waled and Z-bar Group statistics indicate the long-run unidirectional causality between Export and GDP, operates from Export to the GDP. It confirms the validity of Export-led growth hypothesis of the seven selected MENA countries. Empirical evidence suggests significant policy prescriptions; these countries should focus more on supporting export orientated industries through aid-for-trade, trade-capacity building schemes and other types of policies in order to promote economic growth.
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Trava-Sejdic, Jadranka, Tarmo Tamm, Paul A. Kilmartin, Rauno Temmer, Alvo Aabloo, and Rudolf Kiefer. "PEDOT/TBACF3SO3bending actuators based on a PEDOT-PEDOT sandwich complex." In SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, edited by Yoseph Bar-Cohen. SPIE, 2013. http://dx.doi.org/10.1117/12.2009007.
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Ginsburg, Mark. "Pediatric Electronic Health Record Interface Design: The PedOne System." In 2007 40th Annual Hawaii International Conference on System Sciences (HICSS'07). IEEE, 2007. http://dx.doi.org/10.1109/hicss.2007.429.
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Starbird, Ricardo, Wolfgang Krautschneider, Grit Blume, and Wolfgang Bauhofer. "In Vitro Biocompatibility Study and Electrical Properties of the PEDOT, PEDOT Collagen-Coat, PEDOT Nanotubes and PEDOT Aerogels for Neural Electrodes." In Biomedical Engineering. ACTAPRESS, 2013. http://dx.doi.org/10.2316/p.2013.791-072.
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Lu, Fei, Yan Chen, Xiling Mao, Lu Xu, and Jianhua Xu. "PEDOT: PSS/PEDOT composite film for high performance electrochemical electrode." In MATHEMATICAL SCIENCES AND ITS APPLICATIONS. Author(s), 2017. http://dx.doi.org/10.1063/1.4971897.
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Karakurt, Nuri, Ioannis Petsagkourakis, Nara Kim, et al. "Thermoelectric properties of flexible PEDOT/PU and PEDOT/PVDF films." In CENTRAL EUROPEAN SYMPOSIUM ON THERMOPHYSICS 2019 (CEST). AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5120162.
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Dzugan, Tomas, Tomas Blecha, Ales Hamacek, Michael Kroupa, and Jan Reboun. "Electrical properties of PEDOT." In 2009 32nd International Spring Seminar on Electronics Technology (ISSE). IEEE, 2009. http://dx.doi.org/10.1109/isse.2009.5207058.
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Olowo, Olalekan O., Ruoshi Zhang, Andriy Sherehiy, et al. "Inkjet Printing of PEDOT:PSS Inks for Robotic Skin Sensors." In ASME 2022 17th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/msec2022-80989.
Full textAbstract:
Abstract Enhancing physical human-robot interaction requires the improvement in the tactile perception of physical touch. Robot skin sensors exhibiting piezoresistive behavior can be used in conjunction with collaborative robots. In past work, fabrication of these tactile arrays was done using cleanroom techniques such as spin coating, photolithography, sputtering, wet and dry etching onto flexible polymers. In this paper, we present an addictive, non-cleanroom improved process of depositing PEDOT: PSS, which is the organic polymer responsible for the piezoresistive phenomenon of the robot skin sensor arrays. This publication details the patterning of the robot skin sensor structures and the adaptation of the inkjet printing technology to the fabrication process. This increases the possibility of scaling the production output while reducing the cleanroom fabrication cost and time from an approximately five-hour PEDOT: PSS deposition process to five minutes. Furthermore, the testing of these skin sensor arrays is carried out on a testing station equipped with a force plunger and an integrated circuit designed to provide perception feedback on various force load profiles controlled in an automated process. The results show uniform deposition of the PEDOT: PSS, consistent resistance measurement, and appropriate tactile response across an array of 16 sensors.
Reports on the topic "Pedoni"
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van Noordwijk, Meine, Edmundo Barrios, Keith D. Shepherd, Joules Bayala, and Ingrid Öborn. The rooted pedon in a dynamic multifunctional landscape: Soil science at the World Agroforestry Centre. World Agroforestry Centre (ICRAF), 2015. http://dx.doi.org/10.5716/wp15023.pdf.
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Bendikov, Michael, and Thomas C. Harmon. Development of Agricultural Sensors Based on Conductive Polymers. United States Department of Agriculture, 2006. http://dx.doi.org/10.32747/2006.7591738.bard.
Full textAbstract:
In this 1-year feasibility study, we tried polymerization of several different monomers, commercial as well as novel, specially designed and synthesized for this project in the presence of the nitrate ion to produce imprinted conductive polymers. Polymers 1 and 2 (shown below) produced a response to nitrate, but one inferior to that produced by a polypyrrole (Ppy)-based sensor (which we demonstrated prior to this study). Thus, we elected to proceed with improving the stability of the Ppy-based sensor. In order to improve stability of the Ppy-based sensor, we created a two-layer design which includes nitrate-doped Ppy as an inner layer, and nitrate-doped PEDOT as the outer layer. PEDOT is known for its high environmental stability and conductivity. This design has demonstrated promise, but is still undergoing optimization and stability testing. Previously we had failed to create nitrate-doped PEDOT in the absence of a Ppy layer. Nitrate-doped PEDOT should be very promising for sensor applications due to its high stability and exceptional sensing properties as we showed previously for sensing of perchlorate ions (by perchlorate-doped PEDOT). During this year, we have succeeded in preparing nitrate-doped PEDOT (4 below) by designing a new starting monomer (compound 3 below) for polymerization. We are currently testing this design for nitrate sensing. In parallel with the fabrication design studies, we fabricated and tested nitrate-doped Ppy sensors in a series of flow studies under laboratory and field conditions. Nitrate-doped Ppy sensors are less stable than is desirable but provide excellent nitrate sensing characteristics for the short-term experiments focusing on packaging and deployment strategies. The fabricated sensors were successfully interfaced with a commercial battery-powered self-logging (Onset Computer Hobo Datalogger) and a wireless data acquisition and transmission system (Crossbow Technologies MDA300 sensor interface and Mica2 wireless mote). In a series of flow-through experiments with water, the nitrate-doped Ppy sensors were exposed to pulses of dissolved nitrate and compared favorably with an expensive commercial sensor. In 24-hour field tests in both Merced and in Palmdale, CA agricultural soils, the sensors responded to introduced nitrate pulses, but with different dynamics relative to the larger commercial sensors. These experiments are on-going but suggest a form factor (size, shape) effect of the sensor when deployed in a porous medium such as soil. To fill the need for a miniature reference electrode, we identified and tested one commercial version (Cypress Systems, ESA Mini-reference electrode) which works well but is expensive ($190). To create an inexpensive miniature reference electrode, we are exploring the use of AgCl-coated silver wire. This electrode is not a “true” reference electrode; however, it can calibrated once versus a commercial reference electrode at the time of deployment in soil. Thus, only one commercial reference electrode would suffice to support a multiple sensor deployment.
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Ștefănescu, Ruxandra, Eszter Laczkó-Zöld, Bianca-Eugenia Ősz, and Camil-Eugen Vari. An updated systematic review of Vaccinium myrtillus leaves: phytochemistry and pharmacology. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2022. http://dx.doi.org/10.37766/inplasy2022.12.0029.
Full textAbstract:
Review question / Objective: This review aims to present the latest knowledge on the phytochemical profile as well as the therapeutic effects of Vaccinium myrtillus leaves. Background: The leaves are used in traditional medicine of different countries for the management of diabetes. Until date there are no relevant information, only assumptions regarding the compounds that are responsible for this effect Bilberry leaves are used in many countries in traditional medicine for treating a wide variety of diseases. Well documented in the literature, the influence of pedo-climatic conditions is an important factor that is responsible for the noticeable differences among the chemical composition of herbal drugs, and also the accumulation of different metals, having significant effects on the quality of plant products.