Search results for "Zen"
showing 10 items of 3479 documents
Quality Indicators in Reference to the Evaluation of the Quality Management of Services in Local Public Administration
2014
Abstract The paper proposes to show evidence in measures of quality through quantification of the level of current performance of an organization, like local public administration, in accordance with performance standards. The evaluation of quality measures the difference between the expected performance and the actual performance, to identify and improve the quality of the local public administration. Standards of performance could be set for different dimensions of quality. For example: the quality of managing documents, the products, processes and services requires the gathering and analysis of information, set in measuring terms. In a few cases the measuring of quality as percentage of …
Journal of Economics and Management Research, Vol. 3
2014
Igo Cals. Bounded Rationality Concept and Farming Values in Latvian Agricultural Sector ; Dagnija Daņēviča, Ieva Aizsila, Roberts Ikaunieks. Audit Quality Aspects of Cooperation Between Certified Auditor and Audited Entity ; Gyula Fülöp, Bettina Hódi Hernádi. Comparison of Traditional, Environmental and Sustainability Accounting Systems ; Svetlana Jesiļevska. Similarities and Differences of Conducting Innovation Survey – Latvian and Estonian Approaches ; Silvija Kristapsone. Subjective Assessment by Teachers and Other Professionals of Well-being in Latvia in Years 2011/2012 ; Olga Rajevska. Pension Statistics in Latvia: Resources and Weaknesses ; Christin Richter. Current Developments in Ri…
Crystal structure of 1-ferrocenyl-2-(4-methyl-benzo-yl)spiro-[11H-pyrrolidizine-3,11'-indeno[1,2-b]quinoxaline].
2014
In the title compound the four-fused-rings system is approximately planar and the pyrrolidine rings of the pyrrolidizine fragment adopt a twist conformation. In the crystal, molecules are linked by C—H⋯O hydrogen bonds and C—H⋯π interactions, forming double-chains parallel to the c axis.
A novel approach to predict aquatic toxicity from molecular structure
2008
The main aim of the study was to develop quantitative structure-activity relationship (QSAR) models for the prediction of aquatic toxicity using atom-based non-stochastic and stochastic linear indices. The used dataset consist of 392 benzene derivatives, separated into training and test sets, for which toxicity data to the ciliate Tetrahymena pyriformis were available. Using multiple linear regression, two statistically significant QSAR models were obtained with non-stochastic (R2=0.791 and s=0.344) and stochastic (R2=0.799 and s=0.343) linear indices. A leave-one-out (LOO) cross-validation procedure was carried out achieving values of q2=0.781 (scv=0.348) and q2=0.786 (scv=0.350), respecti…
Toward the Physical Interpretation of Inductive and Resonance Substituent Effects and Reexamination Based on Quantum Chemical Modeling
2017
An application of a charge of the substituent active region concept to 1-Y,4-X-disubstituted derivatives of bicyclo[2.2.2]octane (BCO) [where Y = NO2, COOH, OH, and NH2 and X = NMe2, NH2, OH, OMe, Me, H, F, Cl, CF3, CN, CHO, COMe, CONH2, COOH, NO2, and NO] provides a quantitative information on the inductive component of the substituent effect (SE). It is shown that the effect is highly additive but dependent on the kind of substituents. An application of the SE stabilization energy characteristics to 1,4-disubstituted derivatives of BCO and benzene allows the definition of inductive and resonance contributions to the overall SE. Good agreements with empirical approaches are found. All calc…
The Equilibrium Structure of Benzene
2000
The re structure of benzene is revised on the basis of high-level quantum chemical calculations at the CCSD(T)/cc-pVQZ level as well a reanalysis of the experimental rotational constants using computed vibrational corrections. A least-squares fit to empirically determined Be constants yields re(CC) = 1.3914 ± 0.0010 A and re(CH) = 1.0802 ± 0.0020 A; the latter distance is significantly shorter than the best previous estimate based on experimental data. Comparison of computed rg and rz distances with experiment as well as considerations of bond lengthening due to anharmonicity are consistent with the estimated re distance, indicating that the recommended structural parameters are very accura…
Steering distillation processes through quantum Zeno dynamics
2005
A quantum system in interaction with a repeatedly measured one undergoes a nonunitary time evolution and is pushed into a subspace substantially determined by the two-system coupling. The possibility of suitably modifying such an evolution through quantum Zeno dynamics (i.e., the generalized quantum Zeno effect) addressing the system toward an a priori decided target subspace is illustrated. Applications and their possible realizations in the context of trapped ions are also discussed.
La tavola pitagorica. Il quartiere ZEN 2 di Palermo tra futuro e destino_The multiplication table. The future and fate of the ZEN 2 district in Paler…
2016
In questo articolo il quartiere ZEN 2 di Palermo viene introdotto con numerosi rimandi alla letteratura specialistica che lo ha fissato nella storia dell’architettura italiana, per aggiungere qualche ulteriore elemento di riflessione a partire dalla sua dimensione ancora sospesa fra progetto e realizzazione. La concretezza del suo corpo irrisolto appare accentuata non tanto dalla mancanza delle parti incompiute, ma dalla continua necessità che il progetto mostra di trasmettere l’intelligenza della propria struttura spaziale e la sua lunga filiera di riferimenti progettuali. La rievocazione delle ragioni ideologiche e culturali del progetto in eterna opposizione al suo mancato completamento …
Residential Exposure to Outdoor Air Pollution during Pregnancy and Anthropometric Measures at Birth in a Multicenter Cohort in Spain
2011
Background: A growing body of research suggests that prenatal exposure to air pollution may be harmful to fetal development. We assessed the association between exposure to air pollution during pregnancy and anthropometric measures at birth in four areas within the Spanish Children’s Health and Environment (INMA) mother and child cohort study. Methods: Exposure to ambient nitrogen dioxide (NO2) and benzene was estimated for the residence of each woman (n = 2,337) for each trimester and for the entire pregnancy. Outcomes included birth weight, length, and head circumference. The association between residential outdoor air pollution exposure and birth outcomes was assessed with linear regress…
Supramolecular hierarchy among halogen and hydrogen bond donors in light-induced surface patterning
2015
Halogen bonding, a noncovalent interaction possessing several unique features compared to the more familiar hydrogen bonding, is emerging as a powerful tool in functional materials design. Herein, we unambiguously show that one of these characteristic features, namely high directionality, renders halogen bonding the interaction of choice when developing azobenzene-containing supramolecular polymers for light-induced surface patterning. The study is conducted by using an extensive library of azobenzene molecules that differ only in terms of the bond-donor unit. We introduce a new tetrafluorophenol-containing azobenzene photoswitch capable of forming strong hydrogen bonds, and show that an io…