Search results for "MEDIATION"
showing 10 items of 783 documents
Quantitative study of the capture of silver nanoparticles by several kinds of soils
2018
The capacity of different soils to capture silver nanoparticles (AgNPs) by measuring changes of an AgNP intrinsic property such as the plasmon for the first time, was studied. In-tube solid-phase microextraction (IT-SPME) coupled on-line to capillary liquid chromatography (CapLC) with diode array detection (DAD) was employed for measuring the interactions between soil and in-contact AgNP dispersions. Its achieved LOD 9 pM assures quantitative retention measurements and selectivity for soil lixiviation was suitable. Electronic microscopy was employed for corroborating the entrapped Ag into the soils. Capture % of AgNPs was calculated in compost (>99%), mountain (>99%), orchard (15±1%) and ur…
Modified Halloysite Nanotubes: Nanoarchitectures for Enhancing the Capture of Oils from Vapor and Liquid Phases
2013
We prepared hybrid halloysite nanotubes (HNT/sodium alkanoates) in which the inner cavity of the nanoclay was selectively modified. Physicochemical studies evidenced the interactions between HNT and sodium alkanoates, ruled out clay exfoliation, quantified the amount of the loaded substance, and showed an increase of the total net negative charge, allowing us to obtain rather stable aqueous nanoclay dispersions. These dispersions were exploited as inorganic micelles to capture hydrocarbon and aromatic oils in the vapor and liquid states and were revealed to be nonfoaming but very efficient in encapsulating oils. Here, we have fabricated biocompatibile and low-cost inorganic micelles that ca…
MODIFICATION OF HUMIC SUBSTANCES FOR DEVELOPMENT OF MATERIALS FOR ENVIRONMENTAL TECHNOLOGIES
2019
Humic substances are high molecular weight refractory polycationites formed during decay of living organic matter and through biosynthesis of low molecular weight organic substances (metabolites or decay products of living organisms). Presence of many functional groups in the structure of humic substances determines their ability to interact with metal ions forming stable complexes and influencing metal ion speciation in the environment and mobility, behaviour and speciation forms in the environment. Presently humic substances are a product of industrial scale and quantities in amounts of hundreds of tons are produced. The aim of this study is to analyse derivatization possibilities of humi…
Remediation of Soil Contamination with Heavy Metals by Using Zeolite and Humic Acid Additives
2012
- Soil remediation at contaminated sites very often needs customized approach, because of the different content of pollutants. Various technologies from simple soil excavation and transporting to hazardous waste landfills to different kinds of remediation by vitrification and the use of additives can be used for the treatment of soil. A series of remediation experiments using zeolites and humic acids were applied to soil contaminated with copper. Remediation can be performed with easily available additive materials of natural origin found near the place of application, in order to diminish the leaching of contaminants. Soils contaminated and spiked with copper were mixed with additives, and…
Carbon-based ionic liquid gels: alternative adsorbents for pharmaceutically active compounds in wastewater
2021
With the aim of obtaining adsorbent systems to be used for the removal of pharmaceutically active compounds (PhACs) from wastewater, some hybrid ionic liquid gels (HILGs) were obtained from the combination of ionic liquid-based supramolecular gels and carbon materials, like graphite, graphene and graphene oxide (graphene OX). The properties of HILGs were investigated by determining their gel–sol transition temperature and rheological features. They were tested for the removal of PhACs belonging to different pharmaceutical classes, like antibiotics, antidepressants, anti-inflammatory. In particular, the removal of carbamazepine (CBZ), diclofenac sodium salt (DCF), ciprofloxacin (CPX) and nal…
Barns egne stemmer i mekling – En kvalitativ studie av barns erfaringer i obligatorisk mekling etter foreldres samlivsbrudd/skilsmisse
2017
Masteroppgave psykisk helsearbeid ME504 - Universitetet i Agder 2017 Children`s participation in mediation after parent`s brake-up/divorce is a political priori area. Our focus on the importance of preventive work gave us interest in investigating this theme further. The aim was to clarify children`s experiences from participation in mandatory mediation. We focused on how the children`s voices were weighted when the arrangement of care was made, and how the children wanted to be met in mediation. Our research-questions were: «How do children experience their voices being weighted in mandatory mediation after parent`s brake-up/divorce»? and «Which wishes of change in mediation do they tell a…
Hating Adolescents Test (HAT): a preliminary development of a measure to assess hating among adolescents
2020
The phenomenon of haters is becoming common among adolescents. The aims of the present research were to evaluate the preliminary psychometric properties of the Hating Adolescents Test (HAT), an ad hoc questionnaire created to evaluate online and offline hate (Study 1), and possible risk factors connected with hate (Study 2). Participants (202 female and 200 male) of this study completed the HAT, the How I Think Questionnaire, the Buss–Perry Aggression Questionnaire, and the Penn State Worry Questionnaire. Descriptive statistics were calculated, and exploratory factor analysis and confirmatory factor analysis were applied. Preliminary data suggest how males reported higher level of hate than…
Climas motivacionales, motivación autodeterminada, afectos y burnout en deportistas: enfoque multinivel
2017
ResumenEste estudio tuvo como objetivo poner a prueba un modelo de mediación multinivel que examinó las relaciones entre la percepción del clima motivacional generado por los entrenadores a nivel de equipo y los afectos y el burnout a nivel individual, mediados por la motivación autodeterminada. Participaron 745 atletas universitarios de diversos deportes, con edades entre 17 a 28 años (M = 21.46, DT = 2.14) quienes completaron los instrumentos que evaluaban las variables del estudio (PMCSQ-2, SMS-II, PANAS y ABQ). Los resultados mostraron que a nivel individual (nivel intra), la motivación autodeterminada se relacionaba positivamente con el afecto positivo; por el contrario, se relacionab…
Vers une instrumentalisation généralisée du lien communautaire en ligne : la montée en puissance du Community Management
2014
International audience; L’apparition et le développement du processus de socialisation en ligne se conçoit plus que jamais à l’intérieur de logiques marketing et marchandes : d’une part, le développement économique des réseaux sociaux se construit sur l’activité communicationnelle entre les usagers et crée de la valeur ; d’autre part, la puissance capitalistique des opérateurs du Web 2.0 permet de fournir aux usagers des plateformes d’échanges performantes, évolutives et conviviales qui assoient le développement du processus de socialisation lui-même (création et échanges de contenus, construction d’appartenances, constructions de solidarités et de réciprocités, etc.). Ainsi, c’est le déplo…
LE MIGRAZIONI COME NELLA RAPPRESENTAZIONE DI UN GIANO BIFRONTE. LE STRADE SICURE E LEGALI D’INGRESSO DEI MIGRANTI PROFUGHI IN ITALIA.
2019
L’ingresso e la presenza in Italia di persone migranti è, fin da sempre, un tema di confronto fra coloro che ritengono che sia giusto favorire un’adeguata accoglienza e coloro che sostengono il contrario. Il presente contributo intende illustrare le forme possibili di ingresso legale di migranti profughi nei paesi dell’Unione Europea, con particolare attenzione all’ingresso legale in Italia. A partire dal 2014, il governo italiano ha manifestato l’intenzione di sviluppare un programma di reinsediamento al fine di dare ai migranti profughi una adeguata protezione. Attualmente, attraverso la rete dei Corridoi Umanitari, sotto il coordinamento del Dipartimento per le Libertà Civili e Immigrazi…