Search results for "IPA"
showing 10 items of 5795 documents
Towards Seamless IoT Device-Edge-Cloud Continuum:
2021
In this paper we revisit a taxonomy of client-side IoT software architectures that we presented a few years ago. We note that the emergence of inexpensive AI/ML hardware and new communication technologies are broadening the architectural options for IoT devices even further. These options can have a significant impact on the overall end-to-end architecture and topology of IoT systems, e.g., in determining how much computation can be performed on the edge of the network. We study the implications of the IoT device architecture choices in light of the new observations, as well as make some new predictions about future directions. Additionally, we make a case for isomorphic IoT systems in whic…
A Channel-Aware Adaptive Modem for Underwater Acoustic Communications
2021
Acoustic underwater channels are very challenging, because of limited bandwidth, long propagation delays, extended multipath, severe attenuation, rapid time variation and large Doppler shifts. A plethora of underwater communication techniques have been developed for dealing with such a complexity, mostly tailoring specific applications scenarios which can not be considered as one-size-fits-all solutions. Indeed, the design of environment-specific solutions is especially critical for modulations with high spectral efficiency, which are very sensitive to channel characteristics. In this paper, we design and implement a software-defined modem able to dynamically estimate the acoustic channel c…
Influence of Calcium Carbonate Nanoparticles on the Soil Burial Degradation of Polybutyleneadipate-Co-Butylenetherephthalate Films.
2022
A polybutyleneadipate-co-butylenetherephthalate (PBAT) sample, commercially known as Ecoflex®, was processed via melt extrusion with CaCO3 nanoparticles coated with a hydrophobic coating. Blown films of PBAT and two composites with nanofiller (2% and 5%wt) were prepared and degradation tests in soil at 30 °C up to 180 days were carried out with weight loss measurements. Furthermore, biodegradation test according to ISO 14851 was carried out at 30 °C. The effect of CaCO3 on soil burial degradation was assessed by surface wettability and SEM. ATR-FTIR and XPS analyses highlighted chemical modifications induced by soil degradation. CaCO3 nanoparticles decreased surface wettability …
Impact des modes de production économes en pesticides de synthèse sur la qualité microbiologique des sols viticoles
2022
La viticulture est un secteur d‘activité agricole stratégique pour la France carelle représente le 1er poste exportateur du secteur agroalimentaire pourseulement 3% de la SAU Française. Toutefois, elle est aussi une forteconsommatrice de produits phytosanitaires avec 20% des pesticides utilisés enFrance à elle seule, couplé aussi a une forte mécanisation. Tout ceci entraîne unedégradation de la qualité des sols, qu’elle soit physique (Quiquerez et al., 2008),ou biologique (Dequiedt et al., 2011). Une baisse importante de la biodiversitédu sol altère ses grandes fonctions d’intérêts telles que la décomposition de lamatière organique et la fourniture d’éléments minéraux, l’effet barrière auxp…
Incarcerated women, welfare services and the process of re-entering society in Finland
2020
The pathways in and out of crime differ according to gender, people’s life histories, social situations and networks. Before being sentenced, many women have been living in vulnerable and traumatic life situations and violent relationships. Substance abuse often plays a crucial role in committing crimes. Being released from prison and re-entering society is a process that requires women’s own motivation to desist along with help and support from society. This chapter shows how women narrate and describe their experiences after being released from prison and especially how they report the ways in which the welfare system responds to their needs. They discussed their needs for support and ser…
Role ambiguity among school principals in China and Finland
2012
This study explores the role-ambiguity phenomenon among public secondary school principals in China and Finland. Organizational dysfunction caused by role ambiguity in professional organizations has been studied since the 1960s (Kahn et al, 1964). Although role ambiguity occurs most frequently in educational organizations, few studies on role ambiguity are found on school leaders. This study contributes to this topic by building a multidimensional knowledge structure of role ambiguity among school principals. It applies a qualitative design with case study as its approach. The data was collected through ten individual interviews with upper secondary school principals in Shanghai and the Cen…
"En mä halua et mun pomo seuraa mua" : mitkä tekijät estävät työntekijää omaksumasta organisaation sisäistä sosiaalista viestintävälinettä?
2017
Tämän päivän alati muuttuvassa maailmassa yritykset etsivät yhä uusia tapoja säilyttääkseen kilpailuaseman liiketoiminnassaan. Yritysten sosiaaliset kollaboraatio-ohjelmistot, kuten Yammer, ovat tarkoitettu työyhteisölliseen viestintään. Niillä pyritään edistämään työntekijöiden välistä vuorovaikutusta, tiedon jakamista ja työssäsuoriutumiskykyä sekä parantamaan yrityksen tuottavuutta. Yritykset kohtaavat kuitenkin haasteita työntekijöiden sosiaalisen viestintävälineen omaksumisessa. Tietojärjestelmätieteessä teknologian hyväksyntään liittyvä tutkimus on keskittynyt teknologian omaksumisen ja käytön mahdollistajiin. Vähemmälle huomiolle on jäänyt teknologian omaksumisen estäjät, koska niide…
The Necrophilic Laughter : Humor as a Social Pathology
2018
In this article, I claim that humor can be a form of social pathology. In opposition to the general humor-affirmative atmosphere, I develop the critical tradition of humor research, and suggest that there is a darker side to fun and laughter. Using insights from Henri Bergson’s theory about laughter and Erich Fromm’s critical social thinking, I formulate a novel theoretical combination which opens up fruitful perspectives on contemporary humor and its social nature. This empirically motivated conceptual position helps us to understand the role and function of humor and laughter. My conclusion is that parts of the contemporary humor catalogue reflect collective destructive and even death-ori…
Mistä aikuisen tuen tarve syntyy?
2020
Social Workers’ Reflections on Forced Migration and Cultural Diversity : Towards Anti-Oppressive Expertise in Child and Family Social Work
2021
Social work in Finland, like in many other countries, has faced various challenges after the large scale of forced migration in 2015. Although working with migrants is not a new area in social work, the exceptionally large amount of asylum seekers in the Finnish society caused a need for improved social work expertise. Our article deals with Finnish social work practitioners’ reflections on multicultural, multilingual and transnational issues with a client group, which is in a vulnerable situation after forced or other forms of migration. The practitioners participating in our study have either attended a specializing education of child, youth and family social work or taken part in peer gr…