Search results for "rings"

New efficient artemisinin derived agents against human leukemia cells, human cytomegalovirus and Plasmodium falciparum: 2nd generation 1,2,4-trioxane…

2015

Abstract In our ongoing search for highly active hybrid molecules exceeding their parent compounds in anticancer, antimalaria as well as antiviral activity and being an alternative to the standard drugs, we present the synthesis and biological investigations of 2nd generation 1,2,4-trioxane-ferrocene hybrids. In vitro tests against the CCRF-CEM leukemia cell line revealed di-1,2,4-trioxane-ferrocene hybrid 7 as the most active compound (IC50 of 0.01 μM). Regarding the activity against the multidrug resistant subline CEM/ADR5000, 1,2,4-trioxane-ferrocene hybrid 5 showed a remarkable activity (IC50 of 0.53 μM). Contrary to the antimalaria activity of hybrids 4–8 against Plasmodium falciparum …

MR 2918162 Reviewed Van der Geer G. and Kouvidakis A. The Hodge bundle on Hurwitz spaces. Pure and Applied Mathematics Quarterly (2011) 7, no. 4, 129…

2012

In this paper the authors consider the Hurwitz space $H_{g, \, d}$ that parametrizes degree $d$ simple coverings of $\mathbb{P}^{1}$ with $b = 2 g - 2 + 2d$ branch points. The compactification $\bar{H}_{g, \, d}$ of this Hurwitz space is the space of admissible covers of genus $g$ and degree $d$, $f: C \rightarrow P$, where $C$ is a nodal curve and $P$ is a stable $b$-pointed curve of genus $0$. Assigning to $f: C \rightarrow P$ the stabilized model of $C$, one defines a natural map $\phi: \bar{H}_{g, \, d} \rightarrow \bar{M}_{g}$ where $\bar{M}_{g}$ denotes the moduli space of stable curves of genus $g$. The Hurwitz space $\bar{H}_{g, \, d}$ carries a natural $\mathbb{Q}$-divisor class, t…

Evaluation of OSA API's for 3rd party developers of Telco-services

2002

Masteroppgave i informasjons- og kommunikasjonsteknologi 2002 - Høgskolen i Agder, Grimstad Changes in business models introduce new actors to the telecom business. A set of new demands occurs and to handle this, a technical enabler like OSA is needed. Telenor R&D, which often provides Telco services in research projects, must form an opinion concerning this framework. Thus an evaluation of OSA is inquired. This thesis presents an introduction and evaluations of the OSA framework, further, a closer look at two of the OSA API’s (User Status and Terminal Capabilities) are made. To enhance the evaluation, Youngster has been utilized as an example of where the OSA framework can be used. An impl…

Roquefortine C occurrence in blue cheese.

2001

Several strains of Penicillium are used for the production of mold-ripened cheeses, and some of them are able to produce mycotoxins. The aims of the research were the determination of roquefortine C and PR toxin in domestic and imported blue cheeses, the identification of the penicillia used as starter, and the investigation of their capacity for producing toxins in culture media. Roquefortine C was always found in the cheeses at levels ranging from 0.05 to 1.47 mg/kg, whereas the PR toxin was never found. The identification of the fungal strains present in the domestic cheeses included Penicillium glabrum, Penicillium roqueforti, and Penicillium cyclopium in the Gorgonzola "dolce" and Peni…

Utvikling, testing og evaluering av en videobasert læringsressurs for selvstyrt bedriftsopplæring : En casestudie fra Posten Norge AS

2017

Masteroppgave Multimedia and Educational Technology MM500 - Universitetet i Agder 2017 Opplæring av ansatte er arbeidsgivers plikt og arbeidstakers rett, og er derfor en sentral del ved ethvert arbeidsforhold. Ansattes mulighet for utvikling og innflytelse i egen arbeidssituasjon har også vist seg å være fundamentale drivere for engasjement på arbeidsplassen. I samsvar med den teknologiske utviklingen muliggjør det for design av effektive læringsressurser som kan bidra med å tilgjengeliggjøre læringsmateriell, og på samme tid være med på å engasjere ansatte ved gjennomføring av bedriftsopplæring. I nåværende opplæringssituasjon i Posten Norge AS er det kun én metode for opplæring av postbud…

Precision luminosity measurements at LHCb

2014

Measuring cross-sections at the LHC requires the luminosity to be determined accurately at each centre-of-mass energy $\sqrt{s}$. In this paper results are reported from the luminosity calibrations carried out at the LHC interaction point 8 with the LHCb detector for $\sqrt{s}$ = 2.76, 7 and 8 TeV (proton-proton collisions) and for $\sqrt{s_{NN}}$ = 5 TeV (proton-lead collisions). Both the "van der Meer scan" and "beam-gas imaging" luminosity calibration methods were employed. It is observed that the beam density profile cannot always be described by a function that is factorizable in the two transverse coordinates. The introduction of a two-dimensional description of the beams improves sig…

Evaluation of the power quality from a seawave power farm for different interconnection schemes

2007

In this paper we present an approach to the interconnection of a seawave power farm to the grid The generator type used in the farm is a Permanent Magnet (PM) linear generator driven from the seawaves that generates, therefore, highly distorted emfs. We propose and compare two possible ways to interconnect the farm to the grid. One is based on an approach where for each generator there is a conversion subsystem that permits the direct connection of each generator to the a.c. network, the other one is based on an ac.-d.c. converter that is connected to the generator, the converter is connected to a dc link that can receive the power from every unit and that can supply a dc-ac converter direc…

Elektrotīkla monitoringa datu vizualizācija

2016

Kvalifikācijas darba temats ir - “Elektrotīkla monitoringa datu vizualizācija”. IT uzņēmumā “Advangrid”, kas veic elektrotīkla pilnu monitoringu, radās nepieciešamība pēc jauniem grafiskajiem rīkiem, ar kuriem uzņēmuma klientu varētu uzskatāmāk analizēt savu īpašumu elektroenerģijas patēriņu, izmaksas u.c. uzņēmumā ievāktos datus. Uzņēmuma sapulcē tika nolemts, ka datu vizualizācijai sākotnēji tiks izveidoti papildus trīs rīki - Info panelis, kas tiks attēlots uzņēmuma sistēmas sākuma lapā, kā arī divi jauni grafiku veidi - Noslodzes karte (Heat map) un Salīdzināšanas rīks. Šie rīki būs pieejami visiem sistēmas lietotājiem. Kvalifikācijas darba ietvaros autors pilnībā izstrādāja Info paneli…

Kodolspektroskopijas un beta radiometrijas rezultāti vides monitoringā Salaspils kodolreaktora apkārtnē (1966.g. līdz 1995.g.)

1998

Formålet med kroppsøvingsfaget : Fremkomsten av diskurser innen norsk kroppsøving: En kvantitativ tverrsnittstudie

2018

Master grunnskolelærerutdanning for trinn 5-10, 5-årig masterprogram IDR507 - Universitetet i Agder 2018 Background and purpose: The purpose of physical education is a highly discussed theme today, mostly because of the unclear core of the subject. This study aims to investigate the emergence of the health-discourse, the sports-discourse and the «bildung» -discourse, as well as to examine which of these discourses that are the most prominent within Norwegian physical education. The study also aims to investigate the emergence of gender differences in the discourses in the subject, if there is a difference in experienced discourses based on schooling as well as investigating if students' wel…