Search results for "FINLAND"
showing 10 items of 1724 documents
Spectral attenuation of solar ultraviolet radiation in humic lakes in Central Finland
2003
The attenuation of solar ultraviolet (UV) radiation in five lakes in Central Finland was evaluated through field measurements and/or by determining the optical properties of the lake water during summer 1999. Spectral UV irradiance in the air and at several depths underwater was measured in three lakes (Lake Palosjärvi, Konnevesi, and Jyväsjärvi) with dissolved organic carbon (DOC) ranging from 4.9 to 8.7 mg l(-1) and chlorophyll a ranging from 1.6 to 16 g l(-1). According to the field measurements, 99% of the UV-B radiation was attenuated in approximately a half meter water column in the clearest lake. In the UV-A region at 380 nm, the corresponding attenuation occurred in the upper one me…
A practical approach to improve the statistical performance of surface water monitoring networks
2019
The representativeness of aquatic ecosystem monitoring and the precision of the assessment results are of high importance when implementing the EU’s Water Framework Directive that aims to secure a good status of waterbodies in Europe. However, adapting monitoring designs to answer the objectives and allocating the sampling resources effectively are seldom practiced. Here, we present a practical solution how the sampling effort could be re-allocated without decreasing the precision and confidence of status class assignment. For demonstrating this, we used a large data set of 272 intensively monitored Finnish lake, coastal, and river waterbodies utilizing an existing framework for quantifying…
Suomalaisen perheen yhteisen sukunimen lyhyt historia
2016
Viimeistään 1900-luvulta lähtien on ajateltu, että yhteinen sukunimi symboloi suomalaista perhettä julkisissa yhteyksissä ja muodostaa perheenjäsenten yhteisen identiteetin perustekijän. Suomen lainsäädännön mukaan naiset olivat kuitenkin velvollisia ottamaan aviomiehensä sukunimen vain lyhyen aikaa, 1930-luvulta 1980-luvulle ulottuvalla ajanjaksolla. Pohdin artikkelissani, miksi 1800-luvun lopun ja 1900-luvun alkuvuosikymmenten ajatusmaailma vaikutti hyvin pitkään suomalaisten sukunimistöön. peerReviewed
An uptake and elimination kinetics approach to assess the bioavailability of chromium, copper, and arsenic to earthworms (Eisenia andrei) in contamin…
2019
The aim of this study was to determine the bioavailability of metals in field soils contaminated with chromated copper arsenate (CCA) mixtures. The uptake and elimination kinetics of chromium, copper, and arsenic were assessed in the earthworm Eisenia andrei exposed to soils from a gradient of CCA wood preservative contamination near Hartola, Finland. In soils contaminated with 1480–1590 mg Cr/kg dry soil, 642–791 mg Cu/kg dry soil, and 850–2810 mg Ag/kg dry soil, uptake and elimination kinetics patterns were similar for Cr and Cu. Both metals were rapidly taken up and rapidly excreted by Eisenia andrei with equilibrium reached within 1 day. The metalloid As, however, showed very slow uptak…
What happens at the lesson start?
2016
AbstractTransitional periods, such as lesson starts, are necessary steps from one activity to another, but they also compete with time for actual learning. The aim of the present study was to replicate a previous pilot study on lesson starts and explore possible disturbances. In total, 130 lesson starts in Finnish basic education in grades 1–9 were studied using systematic observation performed by 79 preservice teachers. The results corresponded with a previous pilot study indicating that lesson starts were generally orderly and teachers used effective means to manage events. However, lessons started 5 min late on average. Male teachers were evaluated to have better classroom order than fem…
Climate change reshuffles northern species within their niches
2022
Climate change is a pervasive threat to biodiversity. While range shifts are a known consequence of climate warming contributing to regional community change, less is known about how species' positions shift within their climatic niches. Furthermore, whether the relative importance of different climatic variables prompting such shifts varies with changing climate remains unclear. Here we analysed four decades of data for 1,478 species of birds, mammals, butterflies, moths, plants and phytoplankton along a 1,200 km high latitudinal gradient. The relative importance of climatic drivers varied non-uniformly with progressing climate change. While species turnover among decades was limited, the …
Towards new challenges in Finnish pre-service teacher training
2015
Teacher training in Finland is facing a situation in which it is necessary to develop new ways to organize education according to the needs of the students and society. There is an increasing demand for a more flexible teacher study program that would make it possible for students to face the future challenges in more versatile ways. This qualitative study investigates pre-service teachers’ professional development during the 6 ECTS credits learning period in multiple authentic 21st Century learning environments in Primary school teacher training. This article provides an opportunity to discuss and develop primary school teacher training to help pre-service teachers to adapt themselves to f…
Psychiatric comorbidity more common among adolescent females with CD/ODD than among males.
2009
Clinicians and researchers have been increasingly concerned on conduct problems among adolescent females. Yet, most research on the issue has been conducted among males. The aim of this study was to characterize conduct disorder (CD) among adolescent females in comparison with males. Family background, symptoms and severity of CD, and psychiatric comorbidity were assessed among Finnish 12-18-year-old females (n=40) with conduct disorder/oppositional defiant disorder (CD/ODD) compared with males (n=37). Data were collected via structured interviews with the subjects and interviews with parents. Lifetime and current Axis I diagnoses (DSM-IV) were assessed using the Structured Clinical Intervi…
Applying a framework for landscape planning under climate change for the conservation of biodiversity in the Finnish boreal forest
2015
Conservation strategies are often established without consideration of the impact of climate change. However, this impact is expected to threaten species and ecosystem persistence and to have dramatic effects towards the end of the 21st century. Landscape suitability for species under climate change is determined by several interacting factors including dispersal and human land use. Designing effective conservation strategies at regional scales to improve landscape suitability requires measuring the vulnerabilities of specific regions to climate change and determining their conservation capacities. Although methods for defining vulnerability categories are available, methods for doing this …
The effect of peatland drainage and restoration on Odonata species richness and abundance
2015
Background Restoration aims at reversing the trend of habitat degradation, the major threat to biodiversity. In Finland, more than half of the original peatland area has been drained, and during recent years, restoration of some of the drained peatlands has been accomplished. Short-term effects of the restoration on peatland hydrology, chemistry and vegetation are promising but little is known about how other species groups apart from vascular plants and bryophytes respond to restoration efforts. Results Here, we studied how abundance and species richness of Odonata (dragonflies and damselflies) respond to restoration. We sampled larvae in three sites (restored, drained, pristine) on each o…