Search results for "monitor"
showing 10 items of 3841 documents
Jauniešu delinkventas uzvedības biežuma saistība ar bērna pārraudzību un pielāgošanos vienaudžiem
2022
Jauniešu delinkvence, tās sekas uz sabiedrību un jauniešu veselību, un labklājību vienmēr ir bijuši nozīmīgi temati. Kā arī delinkvences veicinošie riska faktori, kas attiecas uz jaunieša apkārtējo vidi – ģimene un vienaudžu ietekme. Bakalaura mērķis ir noskaidrot, kādas saistības ir starp delinkventu uzvedību ar bērna pārraudzību un pielāgošanos vienaudžiem jauniešu izlasē vecumā 14 – 18 gadiem. Pētījuma izlasi veido 133 jaunieši (M vecums = 16,2). Izlasi pārstāvēja 74 meitenes un 59 zēni. Šī darba ietvaros tika izmantotas trīs pētījuma metodes: Vienaudžu pielāgošanās aptauja, Vecāku pārraudzības aptauja un Delinkventas uzvedības biežuma aptauja. Bakalaura darba rezultāti norāda, ka vienau…
Vieraalla kielellä lukeminen : lukuprosessit tutkimuksen kohteena
1998
A Low-Cost Smartphone Sensor-Based UV Camera for Volcanic SO2 Emission Measurements
2017
Recently, we reported on the development of low-cost ultraviolet (UV) cameras, based on the modification of sensors designed for the smartphone market. These units are built around modified Raspberry Pi cameras (PiCams; ≈USD 25), and usable system sensitivity was demonstrated in the UVA and UVB spectral regions, of relevance to a number of application areas. Here, we report on the first deployment of PiCam devices in one such field: UV remote sensing of sulphur dioxide emissions from volcanoes; such data provide important insights into magmatic processes and are applied in hazard assessments. In particular, we report on field trials on Mt. Etna, where the utility of these devices in quantif…
Spatially resolved SO2 flux emissions from Mt Etna
2016
Abstract We report on a systematic record of SO2 flux emissions from individual vents of Etna volcano (Sicily), which we obtained using a permanent UV camera network. Observations were carried out in summer 2014, a period encompassing two eruptive episodes of the New South East Crater (NSEC) and a fissure‐fed eruption in the upper Valle del Bove. We demonstrate that our vent‐resolved SO2 flux time series allow capturing shifts in activity from one vent to another and contribute to our understanding of Etna's shallow plumbing system structure. We find that the fissure eruption contributed ~50,000 t of SO2 or ~30% of the SO2 emitted by the volcano during the 5 July to 10 August eruptive inter…
Advances in Bromine Speciation in Volcanic Plumes
2018
Volcanoes are a significant halogen source to the atmosphere. After water, carbon dioxide and sulfur compounds, halogens are often the most abundant gases in volcanic plumes. In the past, less attention was given to the heavy halogens bromine and iodine. However, the discovery of bromine monoxide (BrO) in volcanic plumes led to new interest especially in volcanic bromine chemistry and its impact on atmospheric processes. The BrO detection came along with advances in volcanic remote sensing techniques, in particular, robust DOAS applications and the possibility of continuous measurements by automated instruments located at safe distances from the volcano. As one of the consequences, the volc…
Evolution of Seismicity During a Stalled Episode of Reawakening at Cayambe Volcano, Ecuador
2021
Cayambe Volcano is an ice-capped, 5,790 m high, andesitic-dacitic volcanic complex, located on the equator in the Eastern Cordillera of the Ecuadorian Andes. An eruption at Cayambe would pose considerable hazards to surrounding communities and a nationally significant agricultural industry. Although the only historically documented eruption was in 1785, it remains persistently restless and long-period (LP) seismicity has been consistently observed at the volcano for over 10 years. However, the sparse monitoring network, and complex interactions between the magmatic, hydrothermal, glacial, and tectonic systems, make unrest at Cayambe challenging to interpret. In June 2016 a seismic “crisis” …
Medicīnisku attēlu aplūkošana volumetriskajā ekrānā
2021
Bakalaura darbs ir uzrakstīts latviešu valodā uz 33 lapaspusēm. Tas satur 23 attēlus, 1 tabulu un 49 atsauces uz literatūras avotiem. Mērķis bija noteikt kā tiek meklēta informācija medicīniskos attēlos volumetriskajā daudzplakņu ekrānā. 24 pētījuma dalībnieku uzdevums bija atrast mērķa elementus daudzslāņu medicīniskos attēlos volumetriskajā daudzplakņu ekrānā un plakanā ekrāna monitorā. Pētījuma norises laikā tika noskaidroti uzdevuma izpildes laiks un pareizība, un raksturotas pielietotās attēlu izskatīšanas stratēģijas. Pētījumā tika noteikts, ka ātrāk uzdevums ir izpildāms volumetriskajā daudzplakņu ekrānā, taču nav pierādāms, ka telpiskā attēla pagriešana dod būtiskus uzlabojumus uzde…
The relationships between urbanization and bird functional traits across the streetscape
2023
Publisher Copyright: © 2023 The Authors The urbanization process leads to changes in bird communities’ taxonomic and functional compositions. Highly urbanized areas generally exhibit a reduced number of bird species sharing few functional traits. However, most urban bird studies focused on vegetation patches in temperate cities. In this study, we investigate how urban environmental attributes – noise, height of buildings, and urban vegetation characteristics – modulate species occurrences and the distribution of functional traits across the streetscape of a tropical metropolis. We predicted diverse trait-environment relationships, but that highly urbanized contexts (e.g., noisy streets with…
Sysmä Community Currency: An Analysis of its Success from the Perspectives of Purposes, Stakeholders and Promotion
2019
Artikkeli on tapaustutkimus paikallisrahajärjestelmästä, jota kokeiltiin äskettäin maalaisympäristössä Sysmän kunnassa. Paikallisraha on yksi innovaatiivisista aloitteista, joita kunta on tehnyt tällä vuosituhannella torjuakseen jo 1960-luvulta alkaen käynnissä ollutta väestökatoa. Tässä artikkelissa tutkitaan paikallisrahan käynnistysvaihetta siihen sisältyneiden ristiriitojen näkökulmasta. Artikkelissa todetaan, että järjestelmä kärsi epäselvästä tavoitteenasettelusta, ja että eri osallisilla oli tavoittesta vaihtelevia ja ristiriitaisia käsityksiä. Paikallisrahan sosiaalista hyväksyntää heikensivät päätös rajoittaa rahaa vastaanottavien yritysten joukko kunnassa kirjoilla oleviin yrityks…
Monitoring of erosion on two calanchi fronts – Northern Sicily (Italy)
2011
In the present research, two neighbouring calanchi fronts have been monitored by means of repeated readings on erosion pins, that were carried out between November 2006 and October 2008. During the monitoring period, a gauge station has been recording rainfalls, allowing us to compute the Rainfall-Runoff Erosivity Factor of the USLE model. The research highlighted: i) a general correspondence between rainfalls temporal trends and surface variation rhythms; ii) alternating erosion and deposition phases result in a retreat of the “calanchi” fronts.