Search results for "Monitoring"
showing 10 items of 3614 documents
Makrofītu kā bioloģiskās kvalitātes indikatoru vērtējums Latvijas-Lietuvas pārrobežu upju baseinos
2016
Upena-Rasuma I. 2016. Maģistra darbs. Rīga, Latvijas Universitāte, 70 lpp. Maģistra darba mērķis ir makrofītu kā ekoloģiskās kvalitātes indikatoru izmantošanas iespēju izvērtējums Lielupes un Ventas baseinu upju posmos teorijā un praksē. Darbā veikti upju veģetācijas pētījumi, apsekojot 40 upju posmus Ventas un Lielupes baseinu vidēji lielās upēs, raksturotas Latvijā un Lietuvā izmantotās makrofītu pētījumu metodes un sugu trofijas indeksi, analizētas to izmantošanas iespējas un ticamības līmenis, priekšrocības un trūkumi teorijā un praksē, kā arī izvērtēta makrofītu loma Ūdens struktūrdirektīvas ietvaros. Rezultātu daļā sniegts ekoloģiskās kvalitātes novērtējuma izvērtējums, kā arī ieteiku…
Kuģu radītā trokšņa izplatības modelēšana Baltijas jūrā ūdens vidē
2019
Darba gaitā pētīta un modelēta trokšņu izplatība Baltijas jūrā ūdens vidē, kas radusies kuģu satiksmes ceļu noslodzes dēļ. Pētījuma laikā veikti mērījumi ar hidrofoniem Baltijas jūrā, kā rezultātā iegūts faktiskais trokšņu piesārņojums kuģu satiksmes dēļ, kā arī modelēti scenāriji pie dažādiem mainīgajiem faktoriem, kā kuģa masas, ūdens blīvuma. Darba mērķis - iegūt pēc iespējas tuvākus modelēšanas rezultātus attiecībā pret faktiski nomērītajiem monitoringa rezultātiem, kā arī identificēt kuģu radīto trokšņu piesārņojuma līmeni. Pētījums sastāv no teorētiskās daļas, kurā veikta literatūras analīze par skaņas izplatību ūdens vidē un dažādu modeļu pielietošanu rezultātu iegūšanai, kā arī prak…
Economic and Life Cycle Analysis of Passive and Active Monitoring of Ozone for Forest Protection
2021
At forest sites, phytotoxic tropospheric ozone (O3) can be monitored with continuously operating, active monitors (AM) or passive, cumulative samplers (PM). For the first time, we present evidence that the sustainability of active monitoring is better than that of passive sensors, as the environmental, economic, and social costs are usually lower in the former than in the latter. By using data collected in the field, environmental, social, and economic costs were analyzed. The study considered monitoring sites at three distances from a control station in Italy (30, 400, and 750 km), two forest types (deciduous and Mediterranean evergreen), and three time windows (5, 10, and 20 years of moni…
Safety Evaluation of Turbo-Roundabouts with and without Internal Traffic Separations Considering Autonomous Vehicles Operation
2021
The paper presents a microsimulation approach for assessing the safety performance of turbo-roundabouts where Cooperative Autonomous Vehicles “CAVs” have been introduced into the traffic mix alongside conventional vehicles “CVs”. Based on the analysis of vehicle trajectories from VISSIM and subsequent analysis of traffic conflicts through the Surrogate Safety Assessment Model (SSAM), the research aims to evaluate the safety benefits of turbo-roundabouts where the lanes are physically separated by raised curbs, compared to roundabouts without such curbs. The paper will then describe the methodological path followed to build VISSIM models of turbo-roundabouts with and without raised curbs in …
The OLYMPUS Experiment
2014
Nuclear instruments & methods in physics research / A 741, 1 - 17 (2014). doi:10.1016/j.nima.2013.12.035
Board structures, liberal countries, and developed market economies. Do they matter in environmental reporting? An international outlook
2019
This is the pre-peer reviewed version of the following article: Board structures, liberal countries, and developed market economies. Do they matter in environmental reporting? An international outlook, which has been published in final form at: https://doi.org/10.1002/bse.2275. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. Previous empirical evidence has shown the effect of most corporate governance mechanisms on corporate social responsibility and environmental disclosure. However, there is scant empirical evidence that examines the influence of liberal countries, developed market economies, and board s…
Employee personal Internet usage in the workplace
2016
Information technology (IT) devices connected to the Internet, such as computers, tablets, and smartphones, have become pervasive in the workplace. These IT devices have greatly facilitated the performance of job tasks for employees. At the same time, employees are increasingly using these technologies for non-work-related purposes during office hours, which is called personal Internet usage in the workplace (PIU). Examples of PIU include, but are not limited to, checking and sending non-work-related emails, surfing news sites, visiting social network sites, e-banking, stock trading, and online shopping, chatting, and gaming. Previous studies on PIU present two schools of thought on PIU out…
The impact of periodic interviews on unemployment duration : Evidence from the 2017 Finnish reform
2023
In 2017, a Finnish policy reform intensified the Public Employment Services' practice of periodically interviewing unemployed jobseekers. This study used high-quality administrative data to analyse the effect of interviews on unemployment duration. We used a difference-in-differences approach that exploited regional variations in treatment intensity. Our results show that a 10 percentage point increase in interview probability increased the monthly hazard rate of employment by 3.1 per cent, with the effect being strongest among jobseekers aged 25–34 and jobseekers with a low education level. Also, our results demonstrate a strong effect on participation in active labour market programmes. p…
The impact of regional demographics on Higher Education Policy. An example from Silesia, Poland
2021
Abstract The determinants of higher education policy have their sources in various spheres, such as economic, social, educational, national policy, administrative, and demographic. Problems for the development of higher education also stem from these spheres. One of them is the challenging demographic situation that is a significant element of developing higher education in southern Poland (particuarly in the Silesia region). Given this context, this article aims to indicate the policies of the universities in the region which respond to the existing demographic threats. This relationship is to confront student opinions regarding their vision for their education and future career within the…
Developing Students Well-Being and Engagement in Higher Education during COVID-19—A Case Study of Web-Based Learning in Finland
2023
COVID-19 rapidly and extensively changed the normal everyday practices of societies, and there is no going back to the past. Universities also had to adapt and re-establish their normal routines, from policies to practices. In this article, we explore university students’ experiences of web-based learning, their well-being, and engagement during the pandemic. As a theoretical framework, we use the concept of the university student engagement inventory (USEI), which includes behavioral, cognitive, and emotional dimensions. The data were collected during the COVID-19 pandemic from university students (N = 35) via an online survey and analyzed using a thematic content analysis. According to th…