Search results for "NAK"
showing 10 items of 469 documents
Kalmbergin kartasto R V : List 8
1855
A quantum model of Schwarzschild black hole evaporation
1996
We construct a one-loop effective metric describing the evaporation phase of a Schwarzschild black hole in a spherically symmetric null-dust model. This is achieved by quantising the Vaidya solution and by chosing a time dependent quantum state. This state describes a black hole which is initially in thermal equilibrium and then the equilibrium is switched off, so that the black hole starts to evaporate, shrinking to a zero radius in a finite proper time. The naked singularity appears, and the Hawking flux diverges at the end-point. However, a static metric can be imposed in the future of the end-point. Although this end-state metric cannot be determined within our construction, we show tha…
Naratīva struktūra un kino stils Toma Forda (Tom Ford) filmās “Vientuļais vīrs” (A Single Man, 2009) un “Nakts dzīvnieki” (Nocturnal Animals, 2016)
2017
Bakalaura darbā apskatīta un izpētīta naratīva struktūra un kino stils režisora Toma Forda filmās “Vientuļais vīrs” un “Nakts dzīvnieki”. Kā pētniecības problēmjautājumi tika izvirzīts noskaidrot, vai Fordam ir raksturīga noteikta naratīva struktūra, kura atspoguļo Forda iemantoto naratīva stilu un vai režisoram ir raksturīgs vienots kino stils, un kā tas izpaužas viņa filmās. Teorētiskajā daļā apkopota literatūra par semiotikas, kino valodas, naratīva un kino naratīva teorijām, savukārt, metodoloģijas daļā tiek raksturota naratīva un semiotiskā analīze. Empīriskajā daļā pēc izvēlētās metodoloģijas tiks analizētas augstākminētās kinofilmas – pēcāk, balstoties uz analīžu rezultātiem, varēs v…
A method for genome-wide analysis of DNA helical tension by means of psoralen-DNA photobinding
2010
The helical tension of chromosomal DNA is one of the epigenetic landmarks most difficult to examine experimentally. The occurrence of DNA crosslinks mediated by psoralen photobinding (PB) stands as the only suitable probe for assessing this problem. PB is affected by chromatin structure when is done to saturation; but it is mainly determined by DNA helical tension when it is done to very low hit conditions. Hence, we developed a method for genome-wide analysis of DNA helical tension based on PB. We adjusted in vitro PB conditions that discern DNA helical tension and applied them to Saccharomyces cerevisiae cells. We selected the in vivo cross-linked DNA sequences and identified them on DNA …
Fast Poisson solvers for graphics processing units
2013
Two block cyclic reduction linear system solvers are considered and implemented using the OpenCL framework. The topics of interest include a simplified scalar cyclic reduction tridiagonal system solver and the impact of increasing the radix-number of the algorithm. Both implementations are tested for the Poisson problem in two and three dimensions, using a Nvidia GTX 580 series GPU and double precision floating-point arithmetic. The numerical results indicate up to 6-fold speed increase in the case of the two-dimensional problems and up to 3- fold speed increase in the case of the three-dimensional problems when compared to equivalent CPU implementations run on a Intel Core i7 quad-core CPU…
Comments on Guimarães & Sawaya. Pretending to be venomous: is a snake's head shape a trustworthy signal to a predator?
2011
Several species of non-venomous snake are known to flatten their heads when disturbed, and this behaviour has been suggested to be a mimicry of vipers (Arnold & Ovenden 2002, Hailey & Davies 1986, Young et al. 1999). Using plasticine models, Guimaraes & Sawaya (2011) tested the antipredatory function of a triangular head shape in snakes. Their article presents the first published empirical experiment testing the adaptive significance of vipers’ triangular head shape. Guimaraes & Sawaya (2011) found no support for the viper mimicry hypothesis. Accordingly, they concluded that ‘the shape of [the] head seemed not to confer advantage itself’. Although the use of plasticine models is a generally…
Latvija un Turcija: aizmirstās attiecības 1918–1940 = Letonya ve Türkiye: unutulmuş ilişkiler 1918–1940 = Latvia and Turkey: Forgotten Relations 1918…
2018
Grāmatas izdošanu finansēja Latvijas Republikas Ārlietu ministrija no Latvijas valsts simtgades publiskās diplomātijas programmas līdzekļiem
« Mouvement est nécessité » Pour une relation au monde du mouvement et de la musique
2021
Starting from a stationary state in order to feed a process, the idea of movement in music can affect both the sound material and the listening (the Hoerspiel...), both the view (musical theater) and the ancillary disciplines (dance or maping-video)... Based on examples taken in the 20th and 21st centuries (Debussy, Berg, Webern, Stravinsky, Stockhausen, Kagel, Ferrari, La Monte Young, Xenakis, Adams, De Chizy, De Mey, Trapani?), musicological study ultimately deduces that the metaphor of movement is for man an experience considered fundamental to his particular relationship to the world.
Du verbe instrumental dans la musique subsaharienne
2021
Sub-Saharan music results from the spoken language/instrumental language relation, directed by an oral culture. In this culture, these languages transmit ? beyond their singularities ? messages thanks to either a coded signal known by the linguistic community or previously defined among a group of individuals, or is used as a true meta-language copied on the articulated and usual language used every day. Here, an instrumental musical speech can then imitate and reproduce the tonal inflexions of the language to make its matter understandable. This fact is the natural result of a strong interaction and interrelation between the spoken language and the music as well as the conception that the …
Nerve agent simulant detection by using chromogenic triaryl methane cation probes
2012
Two triaryl methane cations have been used as probes for colorimetric detection of nerve agent simulants. Buffered mixed aqueous solutions of 1 and 2 showed bathochromic shifts in the presence of DCNP (diethylcyanophosphonate) and DCP (diethylchlorophosphate). The colour modulation can be observed to the naked eye. Appropriate mechanisms for the recognition event are proposed. © 2012 Elsevier Ltd.