Search results for "group"
showing 10 items of 19225 documents
Uso de redes sociales online en personas mayores de 55 años : un análisis exploratorio
2012
Es una aproximación cualitativa al uso y percepción que tienen los mayores de 55 años, de las tecnologías de la comunicación e información (TIC); Concretamente del uso de las redes sociales online. Mediante la técnica de los grupos de discusión trataremos de buscar los prejuicios, mitos conocimientos, motivaciones, barreras, etc. del uso o no de las redes sociales online. It is a qualitative approach to the use and perception of over 55 years of technology and information communication technology (ICT), specifically the use of online social networks. By the technique of focus groups will try to find the prejudices, myths, knowledge, motivations, barriers, etc.. use or not online social netw…
Jauniešu personības iezīmju un sociāli emocionālās kompetences saistība
2021
Bakalaura darba tēma: “Jauniešu personības iezīmju un sociāli emocionālās kompetence saistība.” Pētījuma mērķis bija teorētiski un praktiski izpētīt un noskaidrot personības iezīmju un sociāli emocionālās kompetences savstarpējo saistība jauniešu vecuma grupā. Pētījuma jautājums: vai pastāv statistiski nozīmīgas saistības starp personības iezīmēm un sociāli emocionālo kompetenci jauniešu vecuma grupā? Metode: kvantitatīvais pētījums, kurā piedalījās 50-klašu skolēni no dažiem Latvijas skolām. Pētījuma dalībnieki bija vecumā no 16 līdz 21 gadiem (vidējais vecums M = 18,02 ; SD = 1,07), no tiem 16 (32%) ir zēni un 34 (68%) – meitenes. Izmantotais instruments - “Lielā Piecinieka” aptauja(The B…
VegItaly: The Italian collaborative project for a national vegetation database
2012
Abstract Two years after its official start, the national vegetation database VegItaly, a collaborative project supported by the Italian scientific community and developed by a large group of scientists, is presented. This article offers a concise overview of the content of the database, currently consisting of 31,100 vegetation plot, including published and unpublished data. Some basic statistics are analysed; for example, data distribution in space and time, represented vegetation types expressed as physiognomic categories. Although rather young and still in progress, VegItaly already contains data from all the Italian regions and stands as an optimal candidate for the development of an I…
Pionowa koordynacja transakcji między grupami producentów rolnych a ich pierwszymi odbiorcami. Przykład rynku ziemniaków
2016
Celem artykułu jest identyfikacja form pionowej koordynacji transakcji między grupami producentów rolnych działających na rynku ziemniaka a ich pierwszymi odbiorcami. Przedmiotem badań były kontrakty podpisane przez grupy w 2014 roku. Dla realizacji wyznaczonego celu zastosowano metodę studium przypadku. Wykorzystanym narzędziem był wspomagany komputerowo wywiad telefoniczny, którego podstawę stanowił kwestionariusz ankiety. Badanie przeprowadzono w okresie od marca do maja 2015 roku. W badaniu wzięło udział 8 grup producentów (około 35% zbiorowości całkowitej). W 2014 roku całość sprzedaży była realizowana w ramach kontraktów, a głównym odbiorcą były zakłady przetwórcze.
Improving sensory quality of food product to meet the elderly’s preferences: which winning strategy?
2014
Having a "good" diet counts as an important factor for healthy ageing. Beyond nutritional aspects, a "good" diet, also contributes to maintain “eating pleasure”, an essential component in food intake mechanism. The present study aims to assess the impact of changes related to texture, taste and flavor on food acceptance in the elderly. The adopted strategy was to orientate the products modifications based on elderly’s expectations. A qualitative approach (focus group and face-to-face interviews) was carried on with a first elderly panel (>65 yo) to collect suggestions about sensory improvements that can be made in a meat dish with a normal texture, in a meat dish with a modified texture and…
Apparent and quantitative loss of fatty acids and triacylglycerols at frying temperatures
2012
[EN]: Olive and sunflower oils were heated at 180 °C for 5, 10 and 15 hours with the aim of defining the changes in the contents of fatty acid methyl esters (FAME) and triacylglycerols (TAG) under frying conditions. Differences between apparent and real loss of FAME or TAG are defined for an adequate interpretation of the changes taking place at high temperature. Such differences depend on the expression of the results and frequently result in erroneous conclusions. Results showed that from the normalized composition it could be deduced that only the most unsaturated FAME (C18:2) or TAG containing it was significantly altered. However, quantitative data indicated that all the unsaturated FA…
Interest Representation Preconditions in Illiberal Poland and Hungary
2022
Poland and Hungary have been widely recognised as countries affected by illiberalism. This has undoubtedly created a challenging environment for interest groups; groups which are a touchstone for the quality of democratic processes. In this article, we aim to understand how preconditions for interest representation have changed due to illiberal drift through the eyes of interest groups operating in these two selected post-communist countries. In order to examine their perception of opportunity structures, interaction infrastructure as well as the level of political coordination under the new circumstances, we rely on quantitative research in the form of a survey carried out among interest g…
Halogen-Bonded Co-Crystals of Aromatic N-oxides : Polydentate Acceptors for Halogen and Hydrogen Bonds
2017
The C-ethyl-2-methylresorcinarene (1) forms 1:1 in-cavity complexes with aromatic N,N′-dioxides, only if each of the aromatic rings has an N−O group. The structurally different C-shaped 2,2′-bipyridine N,N′-dioxide (2,2′-BiPyNO) and the linear rod-shaped 4,4′-bipyridine N,N′-dioxide (4,4′-BiPyNO) both form 1:1 in-cavity complexes with the host resorcinarene in C4v crown and C2v conformations, respectively. In the solid state, the host–guest interactions between the 1,3-bis(4-pyridyl)propane N,N′-dioxide (BiPyPNO) and the host 1 stabilize the unfavorable anti-gauche conformation. Contrary to the N,N′-dioxide guests, the mono-N-oxide guest, 4-phenylpyridine N-oxide (4PhPyNO), does not form an…
Low-temperature single crystal X-ray diffraction and high-pressure Raman studies on [(CH3)2NH2]2[SbCl5]
2007
The structure of bis(dimethylammonium) pentachloroantimonate(III), [(CH{sub 3}){sub 2}NH{sub 2}]{sub 2}[SbCl{sub 5}], BDP, was studied at 15 K and ambient pressure by single-crystal X-ray diffraction as well as at ambient temperature and high pressures up to 4.87(5) GPa by Raman spectroscopy. BDP crystallizes in the orthorhombic Pnma space group with a=8.4069(4), b=11.7973(7), c=14.8496(7) A, and Z=4; R{sub 1}=0.0381, wR{sub 2}=0.0764. The structure consists of distorted [SbCl{sub 6}]{sup 3-} octahedra forming zig-zag [{l_brace}SbCl{sub 5}{r_brace}{sub n}]{sup 2n-} chains that are cross-linked by dimethylammonium [(CH{sub 3}){sub 2}NH{sub 2}]{sup +} cations. The organic and inorganic substr…
Polysarcosine-Based Lipids: From Lipopolypeptoid Micelles to Stealth-Like Lipids in Langmuir Blodgett Monolayers.
2016
Amphiphiles and, in particular, PEGylated lipids or alkyl ethers represent an important class of non-ionic surfactants and have become key ingredients for long-circulating (“stealth”) liposomes. While poly-(ethylene glycol) (PEG) can be considered the gold standard for stealth-like materials, it is known to be neither a bio-based nor biodegradable material. In contrast to PEG, polysarcosine (PSar) is based on the endogenous amino acid sarcosine (N-methylated glycine), but has also demonstrated stealth-like properties in vitro, as well as in vivo. In this respect, we report on the synthesis and characterization of polysarcosine based lipids with C14 and C18 hydrocarbon chains and their end g…