Search results for "MC"
showing 10 items of 2122 documents
Sakrament pokuty i pojednania w katechezie niemieckiej
2016
Na temat sakramentu pokuty i pojednania można prowadzić rozważania na różnych płaszczyznach (teologicznej, pedagogicznej, psychologicznej, społecznej). W obecnym artykule podjęto problem przygotowania do korzystania z sakramentu pokuty i pojednania, które dokonuje się w ramach „katechezy niemieckiej”. Termin ten jest szeroki i obejmuje przygotowanie do sakramentu pokuty w Niemczech, w Austrii, Szwajcarii czy Luksemburgu, czyli w krajach niemieckojęzycznych. Kontekstem tej wypowiedzi jest pogłębiający się kryzys wiary w społeczeństwie wielokulturowym, kryzys funkcjonowania Kościoła (ogólnie instytucji i wspólnot religijnych), kryzys znajomości, rozumienia i korzystania z sakramentów, a także…
Problem konfesyjnego nauczania religii w Niemczech
2016
Z punktu widzenia wychowania religijnego zagadnienie konfesyjności jest bardzo istotne. Według Dyrektorium ogólnego o katechizacji: „Charakter wyznaniowy nauczania religii w szkole, prowadzonego przez Kościół zgodnie ze sposobami i formami ustalonymi w poszczególnych krajach, jest więc nieodzowną gwarancją daną rodzinom i uczniom, którzy wybierają takie nauczanie”. Współcześnie niewielu Niemców zajmuje problem różnic wyznaniowych pomiędzy chrześcijanami, choć ciągle wielu identyfikuje się z chrześcijaństwem, z jego zwyczajami czy przykazaniami. Wychowanie religijne opiera się na konfesyjności, na konkretnym odniesieniu do wspólnoty wierzących, zarówno w znaczeniu osobowym (świadectwo nauczy…
Evolution du bilan hydrique à l'échelle de bassins versants en contexte de changement climatique - Mise place d’une méthodologie.
2014
6 pages; International audience
Cracking Activity and Hydrothermal Stability of MCM-41 and Its Comparison with Amorphous Silica-Alumina and a USY Zeolite
1996
It has been found that the cracking activity of MCM-41 for a reaction catalyzed by strong acids site, such asn-heptane cracking, is much lower than that of a USY zeolite, and similar to that of amorphous silica-alumina. The higher activity of USY is due to the presence of stronger Bronsted acid sites in the zeolite. In the case of gas oil cracking, the greater accessibility of the large molecules to acid sites in MCM-41 relative to USY makes the difference in activity between these two catalysts much smaller than for the pure hydrocarbon. In the calcined state MCM-41 is more active and gives more gasoline and less gases and coke than amorphous silica-alumina. However, when the catalysts wer…
Mechanical behaviour of Mater-Bi/wood flour composites: a statistical approach
2008
Interest in biocomposites (lignocellulosic filled biopolymers) started in the 90s, due to environmental advantages, related to the full biodegradability of both matrix and filler, economical issues (organic fillers usually come from sawmill or agriculture wastes) and aesthetical issues (wood filled biopolymers could be particularly pleasant if used for indoor furnishing and automotive interior). In this work, a method for a systematic study of the properties of Mater-Bi®/wood flour composites is presented. A two-level full factorial model was built. It allows investigating the effects of multiple operative variables on the observed properties, their contributions, their optimal combinations…
Mass spectra of halogenated esters 6—Methyl esters of some trihalogenated propanoic and butanoic acids
1984
The mass spectral fragmentation of trihalogenated methyl esters, formed in the reactions of monochlorinated methyl propenoates and 2-butenoates with Cl2, BrCl and Br2, have been investigated. In most cases α-cleavage gives the base peak, [COOCH3]+, the peaks originating from the subsequent losses of one or two halogen atoms also being abundant. The primary loss of a halogen atom is more prominent in the C4 derivatives, Br˙ and Cl˙ being preferentially lost from the 2- and 3-positions, respectively. The McLafferty rearrangement yields in one case the base peak; the 2-halo compounds could in general be distinguished by that fragmentation. Typical for all 2-bromo-substituted methyl butanoates …
MCM-41 silica monoliths with independent control of meso- and macroporosity
2007
Centimetre sized macroporous silica monoliths consisting of MCM-41 have been prepared by a two-step procedure allowing an independent control of the meso- and macro-porosity. In the first step a monolith with a macroporosity tailored between 2 and 20 μm is prepared under acidic medium by a phase separation, named spinodal decomposition, leading to a bicontinuous structure of a silica/polymer phase and a water phase. The monolith is then reacted in an alkaline solution of cetyltrimethyl ammonium to transform the silica skeleton into MCM-41 under conditions which preserve the original morphology and macroporosity of the material. The combination of spinodal decomposition and pseudomorphic tra…
Rotational State Change of Acetonitrile Vapor on MCM-41 upon Capillary Condensation with the aid of Time-Correlation Function Analysis of IR Spectros…
2000
The infrared spectra of adsorbed acetonitrile on MCM-41 (porewidth = 3.2 nm) were measured at 303 K. In the CN stretching ν2 region, two bands were observed at 2265 cm− 1 and 2254 cm− 1, assigned to hydrogen-bonded molecules on surface hydroxyls of MCM-41, and physisorbed molecules in mesopores, respectively. We designate here the 2265 cm− 1 band as the ν2α band and the 2254 cm− 1 band as the ν2β band. The bandwidth of the fundamental transition ν2fβ, was obtained by removing the overlap with hot band transitions of the same mode, ν2α band, and other modes by least-squares fitting. Before capillary condensation, the relaxation time τ obtained from the bandwidth of the ν2fβ band was smaller …
A New pH-Dependent Macrocyclic Rhodamine B-Based Fluorescent Probe for Copper Detection in White Wine
2019
For efficiently measuring copper (II) ions in the acidic media of white wine, a new chemosensor based on rhodamine B coupled to a tetraazamacrocyclic ring (13aneN4CH2NH2) was designed and synthesized by a one-pot reaction using ethanol as a green solvent. The obtained chemosensor was characterized via NMR, UV and fluorescent spectra. It was marked with no color emission under neutral pH conditions, with a pink color emission under acidic conditions, and a magenta color emission under acidic conditions where copper (II) ions were present. The sensitivity towards copper (II) ions was tested and verified over Ca2+, Ag+, Zn2+, Mg2+, Co2+, Ni2+, Fe2+, Pb2+, Cd2+, Fe3+, and Mn2+, with a detection…
Chronic Spontaneous Urticaria in Patients with Common Variable Immunodeficiency
2018
Common variable immunodeficiency (CVID) is a predominantly antibody deficiency and is one of the most common primary immunodeficiencies in adulthood. Replacement therapy with Ig has significantly reduced infectious complications; however, malignant, autoimmune, and inflammatory diseases are still current major causes of morbidity and mortality. In recent years, interest has increased regarding allergic manifestations that may be associated with primary immunodeficiencies; however, no data are currently available on chronic spontaneous urticaria (CSU). In this report, the authors describe CSU in patients with CVID attending their centre. Three CVID patients were affected by CSU and were unre…