Search results for "DDA"

New Internal-Charge-Transfer Second-Order Nonlinear Optical Chromophores Based on the Donor Ferrocenylpyrazole Moiety

2016

A series of new N-arylated ferrocenepyrazole structures, carrying different donor or acceptor substituents in the para position of the aryl ring, has been synthesized by the Chan-Lam cross-coupling reaction. The nonplanar geometric molecular structure of some of these chromophores together with their crystal packing was determined by X-ray diffraction, and the HOMO and LUMO energy levels were evaluated by electrochemical and optical measurements and by density functional theoretical (DFT) calculations. By the investigation of solvent effects and time-dependent DFT (TD-DFT) calculations, the intense electronic absorption band around 270-310 nm was confirmed to be an internal-chargetransfer (…

Optimizing the level of service quality of a bike-sharing system

2016

Public bike-sharing programs have been deployed in hundreds of cities worldwide, improving mobility in a socially equitable and environmentally sustainable way. However, the quality of the service is drastically affected by imbalances in the distribution of bicycles among stations. We address this problem in two stages. First, we estimate the unsatisfied demand (lack of free lockers or lack of bicycles) at each station for a given time period in the future and for each possible number of bicycles at the beginning of the period. In a second stage, we use these estimates to guide our redistribution algorithms. Computational results using real data from the bike-sharing system in Palma de Mall…

Nei luoghi dell'accoglienza. Progetti per Lampedusa e Palermo

2014

Il libro raccoglie gli esiti della ricerca e della didattica dei Laboratori di Progettazione architettonica del terzo anno, svolti presso il corso di Laurea Magistrale in Architettura LM4 della Scuola Politecnica dell’Università degli Studi di Palermo, sul tema dell’accoglienza a Lampedusa e a Palermo. L’obiettivo è quello di presentare la composita esperienza di progetto e di ricerca prodotta intorno all’argomento e nello stesso tempo attivare un confronto sul paesaggio e sugli spazi urbani della città. Il libro cerca di sviluppare un percorso di ricognizione e di conoscenza attraverso l’elaborazione di progetti didattici in grado di produrre idee per la città e il territorio. The book con…

Using field measurements and FAO-56 model to assess the eco-physiological response of citrus orchards under regulated deficit irrigation

2017

[EN] Micro-irrigation is considered one of the most efficient water distribution systems and allows increasing water use efficiency if coupled with effective water-saving irrigation management strategies as regulated deficit irrigation (RDI) or partial root-zone drying (PRD) techniques. However, application of these strategies makes it crucial the real-time monitoring of soil and crop water status, in order to identify appropriate irrigation scheduling parameters (irrigation timing and doses) and to prevent irreversible damage of plant system and/or crop yield reductions. Even if midday stem water potential (MSWP) is considered one of the most affordable indicator for direct determinations …

Translating Sardinia into Chinese: How Indirect Translation Affected the Reception of Geographic and Culture-bounds Words in Deledda’s Short Fiction

2020

As in the case of many literary traditions originating from minor countries, in Late Imperial and Early Republican China several Italian literary works reached the Chinese readership through the mediation of foreign translations, mostly composed in English and French, as well as Japanese. Such languages, which Chinese literati and intellectuals had started to master, served as a catalyst and contributed to the diffusion of promising works which were starting to approach the international literary landscape, but were hardly able to reach China in their original form. In this context, also Grazia Deledda’s literary production has been introduced by the early 20th century Chinese translators t…

Baltu filoloģija, 24. sēj., Nr.1 

2015

Akadēmiķa Jāņa Endzelīna 150. dzimšanas dienas atcerei veltīta starptautiska zinātniska konference "Endzelīns. Valoda. Laiks": Tēzes

2023

Tēžu krājumā apvienotas LU Latviešu valodas institūta rīkotās akadēmiķa Jāņa Endzelīna (1873–1961) 150. dzimšanas dienas atcerei veltītās starptautiskas zinātniskas konferences tēzes, kuras iesnieguši 43 konferences dalībnieki no Latvijas, Lietuvas, Igaunijas, Somijas, Ukrainas, Čehijas, Norvēģijas un Vācijas. Akadēmiķa atceres konferences tiek rīkotas jau kopš 1963. gada. 2023. gada 22.–23. februāra konference “Endzelīns. Valoda. Laiks” bija īpaša, jo tika atzīmēta valodnieka simtpiecdesmitgade; tajā tika godināts Jānis Endzelīns un viņa devums baltistikā, kā arī skartas viņa pētītās jomas: gramatika, onomastika, dialektoloģija, vēsturiskā valodniecība, indoeiropeistika un valodas kultūra.…

DevOps jeb izstrāddarbināšanas principu un rīku pielietošana uzņēmumā programmatūras izstrādes dzīves cikla saīsināšanai

2019

Katram IT uzņēmumam mūsdienās ir ļoti svarīgi nodrošināt pēc iespējas ātrāku tā produktu vai pakalpojumu nodošanu klientam vai lietotājam, uzlabot darbinieku apmierinātību, samazināt neizdevušos vai ieilgušu projektu skaitu, kā arī rūpēties par to, lai katra produkta vai pakalpojuma kvalitāte būtu pēc iespējas augstāka, un jaunas versijas izlaišana būtu pēc iespējas lietotājam nepamanāmāka un neprasītu no lietotāja pārāk daudz papildus darbību. Izstrāddarbināšana jeb izdarbe (angliski – DevOps) ir viens principu kopums, kuru uzņēmums var ieviest, lai sasniegtu šos mērķus. Maģistra darba mērķis ir apzināt un aprakstīt izstrāddarbināšanas vēsturi, rašanās iemeslus, principus un rīkus. Pēc tam…

Latvijas Valsts Universitātes Zinātniskie Raksti. 259. sējums. Valodas sistēma

1976

Structural basis for the sheddase function of human meprin β metalloproteinase at the plasma membrane.

2012

Ectodomain shedding at the cell surface is a major mechanism to regulate the extracellular and circulatory concentration or the activities of signaling proteins at the plasma membrane. Human meprin β is a 145-kDa disulfide-linked homodimeric multidomain type-I membrane metallopeptidase that sheds membrane-bound cytokines and growth factors, thereby contributing to inflammatory diseases, angiogenesis, and tumor progression. In addition, it cleaves amyloid precursor protein (APP) at the β-secretase site, giving rise to amyloidogenic peptides. We have solved the X-ray crystal structure of a major fragment of the meprin β ectoprotein, the first of a multidomain oligomeric transmembrane sheddase…