Search results for "PET"

Mnemoniskie paņēmieni drukātajos sludinājumos

2021

Mūsdienās reklāmas tiek lietotas, lai ietekmētu patērētāju lēmumu pieņemšanu, un tajās tiek lietotas dažādas reklāmas metodes. Līdztekus citām metodēm, reklāmās tiek lietoti arī mnemoniskie paņēmieni, kas palīdz labāk atcerēties reklāmas tekstus. Šī darba mērķis ir izpētīt mnemoniskos paņēmienus un analizēt mnemonisko paņēmienu biežumu Lielbritānijas laikrakstos, izmantojot kvalitatīvās un kvantitatīvās pētījumu metodes - diskursa un biežuma analīzi. Kopumā tika analizēti četrpadsmit laikraksti, lai tajos atrastu mnemonisks ierīces. Šī pētījuma rezultāti apstiprina, ka 61 no 247 laikrakstu reklāmām ir mnemoniskie paņēmieni, visos 14 Lielbritānijas laikrakstos katrā laikraksta numurā ir vism…

Halogen diffusion in a basaltic melt

2007

Abstract The diffusion of the halogens fluorine, chlorine and bromine was measured in a hawaiitic melt from Mt. Etna at 500 MPa and 1.0 GPa, 1250 to 1450 °C at anhydrous conditions; the diffusion of F and Cl in the melt was also studied with about 3 wt% of dissolved water. Experiments were performed using the diffusion-couple technique in a piston cylinder. Most experiments were performed with only one halogen diffusing between the halogen-enriched and halogen-poor halves of the diffusion couple, but a few experiments with a mixture of halogens (F, Cl and Br) were also performed in order to investigate the possibility of interactions between the halogens during diffusion. Fluorine and chlor…

New Insights into the Provenance of the Obsidian Fragments of the Island of Ustica (Palermo, Sicily)

2017

In this study we applied a multidisciplinary approach, coupling geophysical and geochemical measurements, to unveil the provenance of 170 obsidian flakes, collected on the volcanic island of Ustica (Sicily). On this island there are some prehistoric settlements dated from the Neolithic to the Middle Bronze Age. Despite not having geological outcrops of obsidian rocks, the countryside of Ustica is rich in fragments of this volcanic glass, imported from other source areas. The study of obsidian findings was carried out first through visual observations and density measurements. At least two different obsidian families have been distinguished, probably imported from Lipari and Pantelleria isla…

Composantes culturelles et Premières productions céramiques du Bronze ancien dans le sud-est de la France

2012

The collective research project "Cultural components of the first pottery productions of the Early Bronze Age in Southeast France" derives from renewal of documentation on the Early Bronze Age in the southeast Rhodanian region and new approaches to the Bell Beaker period, particularly in the southern part of Southeast France. In 1998, the Riva del Garda conference constituted a high point in Bell Beaker research at a European scale, of which the consequences and questions motivated the collective project for an overview of the transition from the end of the Neolithic to the Early Bronze Age in a large southeastern quarter of France. In these regions, issues relating to the future of Bell Be…

Obsidians of Pantelleria (Strait of Sicily): A Petrographic, Geochemical and Magnetic Study of Known and New Geological Sources

2020

Abstract This paper provides new petrochemical and paleomagnetic data from obsidian sub-sources on the island of Pantelleria, exploited since the Neolithic. Data has been obtained from 14 obsidian samples from 4 locations: Fossa della Pernice (2 sites), Salto la Vecchia and Balata dei Turchi. Here, we aim to better characterize these obsidians using a cross-disciplinary and multi-analytical approach, to further understand their archaeological significance. Major element analyses (EMP) have enabled two compositional super-groups to be distinguished: (i) Fossa della Pernice, less peralkaline and (ii) Balata dei Turchi–Salto la Vecchia, distinctly more peralkaline and having almost identical c…

Do Pied Flycatcher Females Defend an Extra Nest Hole Against Conspecific Females?

1999

AbstractIn birds, females are often aggressive against conspecific females during the breeding. There are many explanations for this intrasexual aggression by females: e.g., nest site or food resource defence, prevention of intraspecific brood parasitism or infanticide, and monopolization of paternal care. A pair might also benefit by defending an alternative nest site in addition to the current nest site. Here, I study by experimentation whether pied flycatcher (Ficedula hypoleuca) females defend an extra nest box as an alternative nesting site. Further, I examine whether females behave differently when their mate is present vs not present. I measured the reactions by resident females to a…

"Uten gruppa vet jeg ikke hvor jeg hadde vært ... " : brukerevaluering av et tverretatlig tiltak for sedelighetsdømte i Kristiansand

2005

Binding of Bacillus thuringiensis toxins in resistant and susceptible strains of pink bollworm (Pectinophora gossypiella)

2003

Abstract Evolution of resistance by pests could cut short the success of transgenic plants producing toxins from Bacillus thuringiensis, such as Bt cotton. The most common mechanism of insect resistance to B. thuringiensis is reduced binding of toxins to target sites in the brush border membrane of the larval midgut. We compared toxin binding in resistant and susceptible strains of Pectinophora gossypiella, a major pest of cotton worldwide. Using Cry1Ab and Cry1Ac labeled with 125I and brush border membrane vesicles (BBMV), competition experiments were performed with unlabeled Cry1Aa, Cry1Ab, Cry1Ac, Cry1Ba, Cry1Ca, Cry1Ja, Cry2Aa, and Cry9Ca. In the susceptible strain, Cry1Aa, Cry1Ab, Cry1…

In Vivo and In Vitro Binding of Vip3Aa to Spodoptera frugiperda Midgut and Characterization of Binding Sites by 125 I Radiolabeling

2014

ABSTRACT Bacillus thuringiensis vegetative insecticidal proteins (Vip3A) have been recently introduced in important crops as a strategy to delay the emerging resistance to the existing Cry toxins. The mode of action of Vip3A proteins has been studied in Spodoptera frugiperda with the aim of characterizing their binding to the insect midgut. Immunofluorescence histological localization of Vip3Aa in the midgut of intoxicated larvae showed that Vip3Aa bound to the brush border membrane along the entire apical surface. The presence of fluorescence in the cytoplasm of epithelial cells seems to suggest internalization of Vip3Aa or a fragment of it. Successful radiolabeling and optimization of the…

Koneluettava lapsi? : opetuksen datafikaatio ja automaatio Minä-Se -suhteiden tuotantokoneistona

2022

Tämän artikkelin tavoitteena on laajentaa digitalisaatiosta, datafikaatiosta, automaatiosta ja kasvatuksesta käytävää teoreettista keskustelua. Artikkelissa pohdin sitä, millaisia merkityksiä koulutuksen kiihtyvällä datafikaatiolla ja automaatiolla on opettaja-oppilassuhteille ja ylipäätään käsityksellemme formaalin kasvatuksen olemuksesta. Käsitteellisesti ammennan Martin Buberin dialogisesta filosofiasta, erityisesti Minä–Sinä- ja Minä–Se-käsitepareista, jotka kuvaavat eri tapoja, joilla ihmiset ovat suhteissa toistensa kanssa. Datafikaatio ja automaatio tuovat uusia näkökulmia Buberin ideoihin, erityisesti Minä–Se-suhteeseen. Oppilaan representaatio ei rakennu enää vain yksilön, tässä op…