Search results for "arki"
showing 10 items of 1015 documents
Exploring the Potential and the Boundaries of the Rolling Horizon Technique for the Management of Reservoir Systems with over-Year Behaviour
2016
The paper presents a set of experiments on the Rolling Horizon Technique (RHT), applied to the management of a multi-reservoir, multipurpose water resources system with over-year behaviour. In the RHT, decisions on releases from reservoirs are taken for a number of time steps ahead (the Forecasting Horizon – FH) through an optimization model, based on the present water availability in reservoirs and on some forecasts of future inflows over the FH. Only the decision concerning the first time step (the current month) is then implemented, as new information on reservoir levels and forecasts becomes available so that the process can start again with updated information. The paper investigates h…
Technical efficiency and cost analysis in wastewater treatment processes: A DEA approach
2009
In light of the growing importance of water reuse as an alternative source of water resources in many regional areas, the objective of this paper is to analyse the efficiency of wastewater treatment plants as a basic requisite to improve the potential of the water reuse. The analytical benchmarking methodology Data Envelopment Analysis (DEA) is used to calculate efficiency measurements. An efficiency index is obtained for each plant by means of mathematical programming techniques, aiming to minimise the inputs used in the water treatment process. This indicator is used as a reference to analyse plants' activity through a series of variables including the size of the plant or its cost struct…
Limited English proficiency : case studies of Finns with limited English proficiency
2017
Englannin näkyvyys suomalaisessa yhteiskunnassa on kasvanut vahvasti viime vuosikymmenien aikana. Englannin rooli ja sen merkitys suomalaisten elämässä on lisääntynyt erityisesti nuorten parissa. Aikaisemmat tutkimukset työelämästä viittaavat siihen, että englannin kielen taito nähdään jopa perusosana ammatillista osaamista. Tiedemaailmassa taas on havahduttu siihen, että tiedekeskustelu tapahtuu yhä useammin englanniksi suomen kielen kustannuksella. Tämä saattaa vaikeuttaa osaltaan suomalaisten korkeakoulujen mahdollisuuksia käyttää suomenkielistä opetusmateriaalia. Samaan aikaan noin joka neljäs suomalainen arvio itse oman englannin kielen taitonsa puutteelliseksi. Näin ollen herääkin kys…
Indexes as Business Environment Characterizing Instruments
2017
Every year several world organizations evaluate countries according different criteria and determine their indexes, such as KOF Index of Globalization, Corruption Perception Index, Global Competitiveness Index, Global Innovation Index, and others. These indexes later are used for analysis of the aspects of entrepreneurship activities in specific countries. One particular application of indexes is related to analysis and evaluation of the business environment of the country. The entrepreneurship is affected by many factors; to research all of them is very time and effort consuming process. The proposed approach (i.e., use of indexes) is targeted and can yield results of the practical signifi…
Benchmarking energy efficiency of water treatment plants: Effects of data variability
2019
This study evaluates, for the first time, the energy efficiency of a sample of drinking water treatment plants (DWTPs) using the data envelopment analysis (DEA) tolerance method, which is based on the simulation of scenarios to integrate data variations. The integration of data uncertainty in energy efficiency estimation changes drastically results for approximately one-third of the DWTPs evaluated. The results showed that, even in the best-case scenario, most of the DWTPs evaluated are inefficient and may therefore, be able to reduce the energy used to treat raw water. From a policy perspective, the findings of this study reveal that omitting data variability in benchmarking would involve …
Assessment of computational methods for the analysis of single-cell ATAC-seq data
2019
Abstract Background Recent innovations in single-cell Assay for Transposase Accessible Chromatin using sequencing (scATAC-seq) enable profiling of the epigenetic landscape of thousands of individual cells. scATAC-seq data analysis presents unique methodological challenges. scATAC-seq experiments sample DNA, which, due to low copy numbers (diploid in humans), lead to inherent data sparsity (1–10% of peaks detected per cell) compared to transcriptomic (scRNA-seq) data (10–45% of expressed genes detected per cell). Such challenges in data generation emphasize the need for informative features to assess cell heterogeneity at the chromatin level. Results We present a benchmarking framework that …
Modality and Injunctive in Homeric Greek: The role of epistemic particles and adverbs in counterfactual constructions
2020
Structurally, unaugmented aorists and imperfects belong to the oldest layer of verbal forms attested in Greek, which continue the so-called Indo-European ‘injunctive’. The latter was inflectionally underspecified as regards verbal categories such as tense or mood (Hoffmann 1967; Kiparsky 1968). Thus, the question arises as to how the attitude of the speaker toward the content of his utterance was expressed. The aim of this paper is to investigate the role of epistemic particles and adverbs co-occurring with injunctives in the Iliad and the Odyssey, focusing in particular on past counterfactual constructions. Crosslinguistic studies have shown that such modal constructions reflect the univer…
The Conceptualisation and Measurement of Mega Sport Event Legacies
2007
This paper focuses on the legacy of mega sport events. First, the concept of legacy is defined before the problems of measuring and forecasting legacy are discussed. Benchmarking and the use of macro data do not correctly reveal legacy. Hence a bottom-up approach is introduced which identifies the event legacy by evaluation of ‘soft’ and ‘hard’ event-related changes in a host city. These changes are defined as ‘event-structures’ (infrastructure, knowledge, image, emotions, networks, culture). Many of them change the quality of location factors of the host city in the long-term. The benefits/costs through the transformation of the host city are the legacy of a mega sport event. Here a partic…
Music Listening for Supporting Adolescents’ Sense of Agency in Daily Life
2020
Sense of agency refers to the ability to influence one’s functioning and environment, relating to self-efficacy and wellbeing. In youth, agency may be challenged by external demands or redefinition of self-image. Music, having heightened relevance for the young, has been argued to provide feelings of self-agency for them. Yet, there is little empirical research on how music impacts adolescents’ daily sense of agency. The current study investigated whether music listening influences adolescents’ perceived agency in everyday life and which individual and contextual determinants would explain such an influence. Participants were 44 adolescents (48% female, 36% with training in music, mean age …
Fibroblast Growth Factor-21 (FGF-21) enhances mitochondrial functions and increases the activity of PGC-1α in human dopaminergic neurons.
2014
FGF-21 è un fattore di crescita ad azione endocrina principalmente espresso nel fegato con funzioni metaboliche; induce a livello epatico e in altri tessuti incremento di PGC1, ma le sue funzioni a livello cerebrale sono ancora sconosciute. PGC1 è espresso anche nel cervello dove mostra azione neuroprotettiva in neuroni dopaminergici in modelli animali di morbo di Parkinson. Scopo della ricerca era indagare possibili correlazioni tra le due proteine a livello cerebrale. I dati mostrano che FGF-21 induce attivazione di PGC1 mediante la deacetilasi Sirtuina-1 NAD+ dipendente, in neuroni dopaminergici e un incremento dell’attività respiratoria mitocondriale. FGF-21 risulta espresso nel cerv…