Search results for "Gord"
showing 10 items of 64 documents
Masu apkalpošanas sistēmu tīkli
2021
Šajā darbā tiek sniegts ieskats masu apkalpošanas sistēmu tīklu dažādos veidos, tiek dotas formulas tīklu darbības rādītāju noteikšanai un aprakstīti reizinājumu formas tīkli. Sīkāk tiek apskatīti trīs masu apkalpošanas sistēmas tīklu veidi - Džeksona tīkli, Gordona-Ņūela tīkli un BCMP tīkli. Katram veidam ir arī dots piemērs ar aprēķiniem. Ir arī piedāvāti uzdevumi patstāvīgai risināšanai.
Degradation of long-chain n-alkanes in soil microcosms by two actinobacteria
2012
The ability of two recently isolated actinobacteria, that degrade medium and long chain n-alkanes in laboratory water medium, was investigated in soil microcosms using different standard soils that were artificially contaminated with n-alkanes of different length (C(12)- C(20)- C(24)- C(30)). The two strains, identified as Nocardia sp. SoB and Gordonia sp. SoCp, revealed a similar high HC degradation efficiency with an average of 75% alkane degraded after 28 days incubation. A selectivity of bacteria towards n-alkanes of different length was detected as well as a consistent effect of soil texture and other soil physical chemical characteristics on degradation. It was demonstrated the specif…
Appropriation et usages des TIC chez des " leaders " politiques en France et en Grande-Bretagne : pratiques et discours
2011
Influence of a nonlinear coupling on the supratransmission effect in modified sine-Gordon and Klein–Gordon lattices
2017
International audience; In this paper, we analyze the conditions leading to the nonlinear supratransmission phenomenon in two different models: a modified fifth order Klein–Gordon system and a modified sine-Gordon system. The modified models considered here are those with mixed coupling, the pure linear coupling being associated with a nonlinear coupling. Especially, we numerically quantify the influence of the nonlinear coupling coefficient on the threshold amplitude which triggers the nonlinear supratransmission phenomenon. Our main result shows that, in both models, when the nonlinear coupling coefficient increases, the threshold amplitude triggering the nonlinear supratransmission pheno…
Relativistic wave equations from supergroup quantization
1983
A formalism of geometric quantization recently introduced which is based on the consideration of Lie groups which are central extensions by U(1) is applied to the relativistic case by using the N-2 super Poincare group with a central charge.
Exploring long chain n-alkane metabolism in Gordonia sp. strain SoCg
2009
Many microorganisms are able to degrade aliphatic hydrocarbons and a relationship between n-alkane utilization and storage compound synthesis has been described in bacteria. The Gram positive GC-rich n-alkane degrader Gordonia sp. strain SoCg, isolated from a long-term accidentally contaminated beach in Sicily, is able to grow on long n-alkanes up to. It carries a single copy of the alkane hydroxylase gene alkB on its chromosome and its alk cluster revealed a genomic organization similar to other alk clusters of alkane-degrading Gram positive bacteria. The alk gene expression, analysed by Real-time RT-PCR, is induced by n-hexadecane and n-triacontane and coupled to alkane consumption. Inter…
S&P 500 -indeksin osinkoperusteinen arvonmääritys pitkällä aikavälillä
2017
Tässä Pro gradu –tutkielmassa selvitettiin, kuinka osinkoperusteinen arvonmääritys toimii S&P 500 indeksiin kuukausittaisella otannalla 1871 – 2016. Tämän lisäksi kartoitettiin, kuinka eri taloudelliset tekijät voivat selittää osaketuottoja. Samalla kartoitettiin miten muuttujien relaatiot ovat muuttuneet pitkällä aikavälillä. Tutkielmassa luotiin eri hintaestimaatteja, joilla pyrittiin arvioimaan tulevaisuuden osakehintaindeksin tasoja ja testattiin, kuinka hyvin estimaatit osuivat. Muuttujien relaatioita tutkittiin yhteisintegraatiotesteillä ja Granger –kausaalisuustesteillä, joiden perusteella voitiin päätellä, miten muuttujat ovat yhteydessä toisiinsa. Tämän lisäksi testattiin, onko pit…
Errors d?edició : dels manuscrits als diccionaris. Exemples de textos mèdics medievals (Hipòcrates, Arnau de Vilanova, Bernat de Gordon, misser Joan)
2017
The commonly used Catalan lexicons (DCVB, DECLC, the vocabulary of Lluis Faraudo de Saint-Germain) collect words and give them meaning from ancient editions of texts. Lexicographers’ performance had its own logic: they used the documentary sources they had at their disposal when they set up to write their works. The advances in philological research (new critical editions, new sources of information) allow us to refine results and detect errors that occurred in old editions and went into dictionaries. Wrong lexemes were included, as well as incorrect or insufficient definitions. This article offers examples of it, out of four medical works. On the one hand, the Catalan translations of the R…
Il caso Hoodia: successo o fallimento? La protezione giuridica delle conoscenze tradizionali
2012
Il presente articolo analizza gli elementi giuridici e politico-strategici del famoso caso di biopirateria della Hoodia gordonii. Il caso è normalmente citato come esempio di successo della collaborazione tra case farmaceutiche e comunità indigene in merito all’utilizzo delle conoscenze tradizionali. Sulla base di ricerche bibliografiche e sul campo, il testo ne descrive lo svolgimento e ne svela alcuni dei non pochi e spesso tralasciati lati oscuri, domandandosi non solo se sia necessario metterne in dubbio il tanto professato successo, ma anche se l’attuale regime giuridico per la protezione delle conoscenze tradizionali sia adeguato ed efficace.
Analysis of nonlinear coupling on the behavior of the sine-Gordon and Klein-Gordon models in bandwidth and forbidden bands
2017
In this thesis, we analyze the conditions of existence of the phenomenon of nonlinear supratransmission in two different models: a modified fifth-order Klein-Gordon system and a modified sine-Gordon system. The modified models considered here are those with mixed coupling, the pure linear coupling being associated with a nonlinear coupling. In particular, we quantify numerically the influence of the non-linear coupling coefficient on the threshold amplitude which triggers the phenomenon of non-linear supratransmission. Our main result shows that in both models, when the nonlinear coupling coefficient increases, the threshold amplitude triggering the phenomenon of nonlinear supratransmission…