Search results for "Repo"

Crystal structure of allyl­ammonium hydrogen succinate at 100 K

2014

The asymmetric unit of the title compound, C2H8N+·C4H5O4−, consists of two allylammonium cations and two hydrogen succinate anions (Z′ = 2). One of the cations has a near-perfectsyn-periplanar (cis) conformation with an N—C—C—C torsion angle of 0.4 (3)°, while the other is characterized by agaucheconformation and a torsion angle of 102.5 (3)°. Regarding the anions, three out of four carboxilic groups are twisted with respect to the central C–CH2–CH2–C group [dihedral angles = 24.4 (2), 31.2 (2) and 40.4 (2)°], the remaining one being instead almost coplanar, with a dihedral angle of 4.0 (2)°. In the crystal, there are two very short, near linear O—H...O hydrogen bonds between anions, with t…

Crystal structure of chlorido(2-{[2-(4-chlorophenyl)hydrazin-1-ylidene-κN1](phenyl)methyl}pyridine-κN)(η5-pentamethylcyclopentadienyl)iridium(III) te…

2015

The title compound, [Ir(η5-C5Me5)Cl(C18H14ClN3)]B(C6H5)4, is chiral at the metal center and crystallizes as a racemate. In the cation, the hydrazinylidenepyridine ligand isN,N-coordinated through theN-pyridyl andN-hydrazinylidene groups forming a five-membered metallacycle. An intramolecular C—H...Cl hydrogen bond is observed. In the crystal, centrosymmetrically-related cations are connected by C—Cl...π interactions, forming a dimeric structure. The crystal packing is further stabilized by weak interionic C—H...π interactions.

Crystal structure of (E)-pent-2-enoic acid

2015

The molecule of the title compound, C5H8O2, a low-melting α,β-unsaturated carboxylic acid, is essentially planar [maximum displacement = 0.0239 (13) Å]. In the crystal, molecules are linked into centrosymmetric dimersviapairs of O—H...O hydrogen bonds.

Crystal structure of 4-(4-meth-oxy-phen-yl)-4',4'-dimethyl-3-p-tolyl-3',4'-di-hydro-1'H,3H-spiro-[isoxazole-5,2'-naphthalen]-1'-one.

2015

In the title compound, C28H27NO3, the cyclohexanone and isoxazole rings have envelope conformations, with the methylene and spiro C atoms as the flaps, respectively. The mean plane of the isoxazole ring is inclined slightly to thep-tolyl ring, making a dihedral angle of 14.20 (9)°, and is nearly perpendicular to the mean plane through the tetralone moiety and to the methoxyphenyl ring [dihedral angles = 83.41 (8) and 72.12 (9)°, respectively]. The crystal packing is stabilized mainly by van der Waals forces.

Crystal structure of bis-(allyl-ammonium) oxalate.

2014

The title salt, 2C3H8N+·C2O42−, crystallized with six independent allylammonium cations and three independent oxalate dianions in the asymmetric unit. One of the oxalate dianions is nearly planar [dihedral angle between CO2planes = 1.91 (19)°], while the other two are twisted with angles of 11.3 (3) and 26.09 (13)°. One cation has a synperiplanar (cis) conformation with an N—C—C—C torsion angle of 0.9 (3)°, whereas the five remaining cations are characterized bygauchearrangements, with the N—C—C—C torsion angles ranging from 115.9 (12) to 128.8 (3)°. One of the allylammonium cations is positionally disordered (fixed occupancy ratio = 0.45:0.55). In the crystal, the cations and anions are co…

Repertorio di cupole palermitane-rilievi, elaborazioni grafiche e fotografiche

2010

L’attenzione viene posta sul ricco repertorio architettonico delle cupole palermitane, indagando operativamente su numerosi esempi che abbracciano un arco temporale che va: dall’età arabo normanna (XI sec.) con le piccole cupole a calotta emisferica in pietra di intaglio rialzata dal piano di imposta e rivestita in coccio pesto; alle cupole delle poche fabbriche quattro-cinquecentesche; a quelle a calotta unica rialzata con o senza nervature preziosamente rivestite da decorazioni superficiali degli edifici di culto dell’architettura barocca (intorno alla prima metà del Settecento); fino ad arrivare alle cupole ottocentesche in struttura di ferro impiegate nella realizzazione dei due teatri …

Models and Streams of Data Journalism

2015

This paper presents the initial results of a two-year research project, the Data Journalism Work Practices, which focuses on newsrooms in Finland, UK and US. Data journalism or data-driven journalism has been defined simply as journalism based on large data sets (or big data) Rogers 2011; Bounegru et al. 2012). According to our ongoing research on data journalism work methods, we can claim this has been an oversimplification. In this paper we will argue that all the brief definitions of data journalism lack nuances, and the multiple layers that contemporary data journalism already consists of in newsrooms. Based on six interviews of leading Finnish, American and British data journalists we …

Patients’ preferences for osteoarthritis treatment: the value of stated-preference studies

2019

Decorum. An ancient idea of everyday aesthetics

2021

Everyday Aesthetics was born in the 21ST Century as a sub-discipline of Anglo-American Aesthetics and it has spread in the international debate. However, the contribute of historical perspective has not properly explored yet. Is it possible to trace the history of everyday aesthetics before the official birth of this discipline? I will try and give you an affirmative answer by focusing on an exemplary category: that of the decorum. Using the history of ideas (W. Tatatrkiewicz), I will analyse the Greek concept of prepon and the similar Latin concepts of decorum which express the idea of "convenience" or "fitness to purpose" in the ethical and rhetorical sphere. Later I will analyse the evol…

THE NEED FOR THE BALANCE BETWEEN WORK AND PERSONAL LIFE IN THE CONTEXT OF ECONOMIC CRISIS AND THE ENHANCE QUALITY OF LIFE

2012

The professional life of the individual in society should become a major goal of the employment policies and strategies, a goal considered science and art. Starting from the Europe`s demographic paradox, it is concluded the need to use at full capacity the human resources of the EU27, by maximizing the efficiency of each individual of the society. Based on criteria of choice a caree and of the satisfaction - productivity report it is detailed the importance of counselling to optimize the relationship skills / utility in the society. In the end, a series of conclusions and suggestions are presented on the current and future way of addressing employment, education, continuous lifelong profess…