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Random Slicing: Efficient and Scalable Data Placement for Large-Scale Storage Systems
2014
The ever-growing amount of data requires highly scalable storage solutions. The most flexible approach is to use storage pools that can be expanded and scaled down by adding or removing storage devices. To make this approach usable, it is necessary to provide a solution to locate data items in such a dynamic environment. This article presents and evaluates the Random Slicing strategy, which incorporates lessons learned from table-based, rule-based, and pseudo-randomized hashing strategies and is able to provide a simple and efficient strategy that scales up to handle exascale data. Random Slicing keeps a small table with information about previous storage system insert and remove operations…
Determination of type A trichothecenes by high-performance liquid chromatography with coumarin-3-carbonyl chloride derivatisation and fluorescence de…
2000
A method for the analysis of type A trichothecenes T-2 toxin, HT-2 toxin, neosolaniol and diacetoxyscirpenol by high-performance liquid chromatography with fluorescence detection using coumarin-3-carbonyl chloride has been developed. Different parameters concerning the analytical procedure such as stability of both the reagent and derivatised analytes, time and temperature of the derivatisation reaction, were studied and optimised. Three different clean-up procedures (solid-phase extraction with silica gel or C-18 cartridges, and liquid-liquid partition between toluene and dihydrogen phosphate buffer) were tested in order to remove the excess reagent peaks. The last procedure gave the best …
Comparative assessment of three extraction procedures for determination of emerging Fusarium mycotoxins in pasta by LC–MS/MS
2013
Abstract A new rapid, sensitive, reproducible and reliable method was developed for the quantitative determination of enniatins A, A1, B and B1, beauvericin and fusaproliferin in dry and fresh pasta by liquid chromatography-triple quadrupole-tandem mass spectrometry. A comparative study of different rapid and economical extraction procedures was performed for the extraction of these mycotoxins in pasta. For this purpose, three different approaches were studied during the extraction step (Ultra-Turrax, ultrasonic bath and microwave). Optimal extraction conditions were reached using Ultra-Turrax with acetonitrile for 3 min without purification step. The chromatographic separation of the six m…
Gozos a los martires de Valencia San Juan de Perusia, y San Pedro de Saxoferrato, Hijos de N. P. S. Francisco, que padecieron Martirio en el lugar qu…
El full orlat Grav. xil. enmarcat dels sants, flanquejat per gerros amb flors El text del goig a tres col. separades per filets
Gozos al santo Ecce Homo, venerado en el Convento de Religiosas de Jerusalen.
El full orlat Grav. xil. enmarcat del Crist, situat entre el text del goigs i flanquejat per ornaments tip El full a dues tintes Text del goig a tres col. separades per bandes
Latvijas Vēstures Institūta Žurnāls. 2016, Nr. 1 (98)
2016
Valsts kultūrkapitāla fonds
Sociālpedagoģiskā darbība Dienas centra audzēkņu saskarsmes prasmju veicināšanā
2021
Martas Škapares diplomdarbs “Sociālpedagoģiskā darbība Dienas centra audzēkņu saskarsmes prasmju veicināšanā” izstrādāts ar mērķi raksturot saskarsmes prasmes, to būtību bērnu un pusaudžu vecumā, kā arī izstrādāt un aprobēt sociālpedagoģiskās darbības programmu Dienas centra audzēkņu saskarsmes prasmju veicināšanā. Teorētiskajā daļā raksturots saskarsmes un saskarsmes prasmju jēdziens, saskarsmes aspekti bērnu un pusaudžu vecumā, Dienas centra darbība un tā iespējas saskarsmes prasmju veicināšanā. Praktiskajā daļā raksturots pētījums par Dienas centra audzēkņu saskarsmes prasmēm. Tika izstrādāta sociālpedagoģiskās darbības programma Dienas centra audzēkņu saskarsmes prasmju veicināšanai. Ve…
Influence of different soluble dietary fibers on the bioaccessibility of the minor Fusarium mycotoxin beauvericin.
2011
Abstract Beauvericin (BEA) is a bioactive compound produced by the secondary metabolism of several Fusarium strains and is known to have various biological activities. This study investigated the bioaccessibility of the BEA tested in concentrations of 5 and 25 mg/L, in a model solution and in wheat crispy breads elaborated with different natural binding compounds as the soluble alimentary dietary fibers β-1,3 glucan, chitosan low molecular weight (L.M.W.), chitosan medium molecular weight (M.M.W.), fructooligosaccharides (FOS), galattomannan, inulin and pectin, added at concentrations of 1% and 5%. The bioaccessibility was determinated by employing a simulated gastrointestinal digestion tha…
Seminararbeiten von Semester 71/72, 72, 72/73
1801
Fusarium proliferatum: induction and intracellular location of a lipoxygenase
1998
The fungus Fusarium proliferatum was grown in a soya oil- and glucose-supplemented medium. Induction of lipoxygenase activity (13-fold) in an extract of Fusarium biomass has been observed at day four on soya oil culture medium. A band at 232 kDa was detected using a specific lipoxygenase stain combined with native PAGE. The method of fungal homogenate obtained has been checked via subcellular marker enzymes activities: succinate dehydrogenase (SDH) for mitochondrial fraction and NADH-cytochrome C reductase (NADH-cyt. C) for the microsomal fraction. Protoplasts production and disintegration followed by subcellular fractionation using differential centrifugation was the best method to recover…