Search results for "ATAL"
showing 10 items of 10591 documents
Organocatalytic Enantioselective Vinylogous Henry Reaction of 3,5-Dimethyl-4-nitroisoxazole with Trifluoromethyl Ketones
2017
The enantioselective vinylogous Henry reaction of 3,5-dimethyl-4-nitroisoxazole with trifluoromethyl ketones employing a bifunctional squaramide organocatalyst has been developed. A series of isoxazole bearing trifluoromethyl-substituted tertiary alcohols, 2-substituted (R)-1,1,1-trifluoro-3-(3-methyl-4-nitroisoxazol-5-yl)propan-2-ols, were obtained under these mild reaction conditions in good yields and moderate to good enantioselectivities
Trisomia parziale prossimale 1q in diagnosi prenatale
2008
Huomisen maaseutu
2019
Käsityöläinen kyläyhteisönsä jäsenenä : prosopografinen analyysi Hollolan käsityöläisistä 1810-1840
2014
Farming intensity indirectly reduces crop yield through negative effects on agrobiodiversity and key ecological functions
2022
International audience; Farming intensity and landscape heterogeneity influence agrobiodiversity and associated ecological functions. The relative contributions of these agroecosystem components to agricultural production remain unclear because of inter-relations and weather-dependant variations. Using a structural equation modelling approach, we estimated direct and indirect contributions of farming intensity (soil management, pesticide use and fertilisation) and landscape heterogeneity (of semi-natural covers and crop mosaic) to cereal crop production, in 54 fields (mostly wheat), in two years (24 and 30 fields). Indirect effects were evaluated through agrobiodiversity (carabid and plant …
Problema fonetyčnoji transkrypciji napivpomjakšenych pryholosych u pidručnykach z ukrajins'koji movy jak inozemnoji
2020
L'articolo ha come obiettivo l'elaborazione di una proposta di trascrizione fonetica delle consonanti semipalatalizzate in ucraino per mezzo dei simboli dell'Alfabeto fonetico internazionale, da usare nei manuali destinati agli studenti stranieri. Vengono prese in considerazione diverse problematiche, tra cui: la limitatezza dei mezzi grafici dell'alfabeto fonetico per esprimere alcune particolarità della correlazione palatale; la resa ortografica delle semi-palatalizzate in ucraino e la sua corrispondenza alla loro pronuncia comune; la tendenza di alcune consonanti palatalizzate all'indurimento e i diversi modi di pronunciare le semi-palatalizzate. Nel lavoro vengono analizzati i contribut…
Pulsed flow-through cultivation of Margaritifera margaritifera : effects of water source and food quantity on the survival and growth of juveniles
2020
AbstractConservation of the endangered freshwater pearl mussel (FPM) includes artificially rearing juveniles, but the pulsed flow-through (PFT) method, enabling the continuous renewal of water and food in culture containers, has not been applied to FPM. This study tested the PFT method in culture of FPM juveniles, and the effect of water source (tap vs well water) and food concentration (mixture of commercial phytoplankton products) on the survival and growth of juveniles. Beaker-specific survival rates varied from 0 to 100% (mean: 34%) and from 0 to 58% (mean: 16%) in the 1st (2-week) and 2nd (10-week) experiment, respectively. In the 1st experiment, juveniles attained statistically signif…
Zīdaiņu mirstības atšķirības Baltijas reģionā - Latvijā, Igaunijā, Lietuvā saistībā ar makroekonomiskajiem faktoriem no 2010. līdz 2016. gadam
2020
Tēmas pamatojums: Zīdaiņu un bērnu līdz 5 mirstība ir viens no galvenajiem valstu un bērnu labklājības rādītājiem, kas joprojām ir augsti pat vairākās attīstītās valstīs. Šī iemesla dēļ ir svarīgi monitorēt veicinošos faktorus, kas rada bērnu mirstības riskus agrīnā vecumā reģionālā perspektīvā, lai varētu tos mazināt un novērst. i,. Pētījumu sērija, ko veica LU MF Pediatrijas katedra Valsts pētījumu programmas ietvaros (1996 – 2010), identificēja cēloņsakarības starp bērnu mirstību un atsevišķiem socio- un makro-ekonomiskiem faktoriem Baltijas valstīs un atklāja atšķirības to savstarpējā mijiedarbā Latvijā, salīdzinājumā ar Lietuvu un Igauniju. MērķisMērķis bija konstatēt vai Baltijas reģi…
Multimetallic Oxynitrides Nanoparticles for a New Generation of Photocatalysts
2019
A versatile synthetic strategy for the preparation of multimetallic oxynitrides has been designed and here exemplarily discussed considering the preparation of nanoscaled zinc-gallium oxynitrides and zinc-gallium-indium oxynitrides, two important photocatalysts of new generation, which proved to be active in key energy related processes from pollutant decomposition to overall water splitting. The synthesis presented here allows the preparation of small nanoparticles (less than 20 nm in average diameter), well-defined in size and shape, yet highly crystalline and with the highest surface area reported so far (up to 80 m2 g-1 ). X-ray diffraction studies show that the final material is not a…
From Analysis to Formulation of Strategies for Farm Advisory Services (Case Study: Valencia – Spain). an Application through Swot and Qspm Matrix
2019
Abstract European agriculture should meet new increasing internal and contextual challenges. For example, the reform of the Common Agricultural Policy in 2003 introduced the cross-compliance, among other novelties, as compulsory for farmers. To better meet this and other requirements, Member States had to set up the so-called Farm Advisory System, operational across the European Union in 2007. From a sample of actors involved in the provision of farm advisory services in the region of Valencia (Spain), the present study aimed to identify the most appropriate strategies to implement such services. SWOT method has been applied to examine the internal and external environment. Based on this di…