Search results for "MEB"
showing 10 items of 55 documents
Electrospray Ion Mobility Mass Spectrometry of positively and negatively charged (1R,2S)-Dodecyl(2-hydroxy-1-methyl-2-phenyl-ethyl)dimethylammonium b…
2016
RATIONALE: Self-assembling processes of surfactants in the gas phase constitute a developing research field of interest since they allow information to be gained on the peculiar structural organization of these aggregates, on their ability to incorporate from small molecules up to proteins and on their possible use as carriers of drugs in the gas phase or as cleaning agents and exotic reaction media. METHODS: The mass spectra of charged aggregates of the chiral surfactant (1R,2S)-dodecyl(2-hydroxy-1-methyl-2- phenylethyl)dimethylammonium bromide (DMEB) in the gas phase have been recorded using a Synapt G2-Si mass spectrometer in the positive and negative ion mode. For comparison purposes, t…
Economic moralities in self-organised alternative economies : the Finnish cases of ridesharing and timebanking
2020
PurposeThis paper explores economic moralities in self-organised alternative economies and argues that the diverse economies approach is particularly useful in elaborating the self-understandings of such economic communities. The analysis focuses on two types of alternative economies in Finland: ridesharing and timebanking.Design/methodology/approachThrough qualitative data, the paper looks into moments of negotiation where economic moralities of self-organised alternative economies are explicitly debated. The main research data consists of social media conversations, supplemented by a member survey for the participants of the studied timebank. The data are analysed through theory-guided qu…
Entrapment of amino acids in gas phase surfactant assemblies: The case of tryptophan confined in positively charged (1R,2S)-dodecyl (2-hydroxy-1-meth…
2017
The ability of positively charged aggregates of the surfactant (1R,2S)‐dodecyl (2‐hydroxy‐1‐methyl‐2‐phenylethyl))dimethylammonium bromide (DMEB) to incorporate D-tryptophan or L-tryptophan in the gas phase has been investigated by electrospray ion mobility mass spectrometry (ESIâIMâMS). Strongly impacted by the pH of the electrosprayed solutions, both protonated (T+) and deprotonated (T-) tryptophan are effectively included into the aggregates, whereas, tryptophan in zwitterionic (T0) form is practically absent in singly charged DMEB aggregates but can be found in multiply charged ones. The ability to incorporate tryptophan increases with the aggregation number and charge state of aggr…
Corporalidad y abyección en las crónicas de Pedro Lemebel.
2001
Artículo sobre las crónicas urbanas de Pedro Lemebel La esquina es mi corazón y Loco afán (Crónicas de sidario). Se analizan las representaciones de la ciudad y el cuerpo en los textos de Lemebel, poniendo el énfasis en los sentidos que da a los efectos del VIH en el cuerpo enfermo y en su reconceptualización de las identidades travestidas y mestizas.
ERFARINGER MED TRAUMEBEVISST OMSORG I KOMMUNALE PSYKISK HELSE OG SOSIALE TJENESTER : En kvalitativ studie blant psykisk helsearbeidere i en kommune
2018
Masteroppgave psykisk helsearbeid ME504 - Universitetet i Agder 2018 Background The topic of the study is trauma informed care in municipal housing communities. Background for the choice of the theme is a desire to get more knowledge about trauma informed care in practice and how it unfolds in the housing that is included in BoGodt. With this background, we wish to focus on the experiences of employees with trauma informed care for disadvantaged adults in municipal housing communities. The findings of the study are discussed in light of the trauma informed approach. Selection and method Qualitative study with focus group interview. RvtsSør has developed the competence-boosting program "BoGo…
Evaluating the impact of roughness in soil moisture and optical thickness retrievals over the VAS area
2014
International audience
Testate amoebae as a potential tracer of organic matter dislodged from peat extraction areas
2020
In the boreal zone, surface waters mostly receive external organic matter (OM) from surrounding peatlands. The lake’s biological communities may respond to changes in OM inputs caused by anthropogenic activities in the catchment. Testate amoebae (TA) possess an outer shell that preserves well in lake sediments and are commonly used in paleo-environmental studies. Additionally, they fall into the size range of particles transported from peatlands to lakes, making them potential particle tracers. Here, we compared TA communities of current and pre-peat extraction sediments from lakes receiving OM only from peat extraction areas (impact lakes) with lakes receiving OM from peatlands under other…
Chiroptical Phenomena in Reverse Micelles: The Case of (1R,2S)- Dodecyl (2-hydroxy-1-methyl-2-phenylethyl)dimethylammonium Bromide (DMEB)
2014
(1R,2S)-Dodecyl(2-hydroxy-1-methyl-2-phenylethyl)dimethylammonium bromide (DMEB) aggregates dispersed in carbon tetrachloride have been investigated by Fourier transform infrared (FT-IR), vibrational circular dichroism (VCD) and 1H nuclear magnetic resonance (NMR) spectroscopy at various surfactant concentration and water-to-surfactant molar ratio. Experimental data indicate that, even at the lowest investigated concentration and in absence of added water, DMEBmolecules associate in supramolecular assemblies. At higherDMEBconcentration the aggregates can confine watermolecules,making it plausible to think thatDMEB form reverse micelles and that watermolecules are quite uniformly distributed…
Turvemaiden maankäytön vaikutukset kuoriameebayhteisöihin
2013
Turvemaiden maankäytöllä on todettu olevan monenlaisia ympäristövaikutuksia, kuten esimerkiksi kasvihuoneilmiötä vauhdittavat kaasupäästöt (esim. CO2 & CH4), turvetuotannon vesistövaikutukset ja turpeenpolton päästöt. Lisäksi turvemaiden maankäytöllä on vahvoja vaikutuksia soihin. Maankäytön ympäristövaikutusten arvioinnissa on käytetty apuna monia eliöryhmiä, esimerkiksi pohjaeläimiä, eläinplanktonia ja kaloja. Kuoriameebat (Testacea) ovat ryhmä pieniä, lajistoltaan monimuotoisia ja laajalle levinneitä yksisoluisia eliöitä. Ne ovat pääasiallisesti akvaattisia eliöitä, ja niitä esiintyy muun muassa turvemailla, kosteikoissa ja järvissä. Kuoriameebat sopivat erityisesti turvemaassa tapahtuvi…
Sense of coherence and health among home-dwelling older people.
2010
Sense of coherence (SOC) is important for maintaining health. The aim of this study was to investigate if the SOC experience among home-dwelling physically active older people differs from that of hospital patients with the same age and sex. Data were collected with questionnaires and structured interviews containing Antonovsky’s SOC scale in an age- and sex-matched study group (n=160). Non-parametric statistical analyses were performed. No differences were found in SOC between home-dwelling individuals and patients. Ninety-five percent of the home-dwelling individuals perceived themselves as being in good health and 42.5% among the patients (p<0.001). SOC and disease were predictors fo…