Search results for "sol"
showing 10 items of 23782 documents
CCDC 1576743: Experimental Crystal Structure Determination
2019
Related Article: Arkalekha Mandal, Kari Rissanen, Prasenjit Mal|2019|CrystEngComm|21|4401|doi:10.1039/C9CE00561G
Measurement of pyrophosphate concentration in cells by simple terpyridine-Zn(II) probe
2015
Pyrophosphate (PPi) anion is an integral part of our physiology. It partakes in the crucial energy transactions in cells and proffers energy for the harmonious functioning of the cell machinery. Discrepancies in PPi concentrations have been associated with several pathological aberrations such as chronic pyrophosphate arthropathy, calcium pyrophosphate deposition disease, cancer etc. However, there still exists a strong demand for an efficient and specific cell based assay for PPi in order to tap its importance to full potential. Terpyridine-Zn2+ complex (ZnCl2L probe) binds with PPi in 1:3 stoichiometry. This association engenders an emission band (λem) at ~591 nm when excited at 440 nm wi…
Automated Checking of Flexible Mathematical Reasoning in the Case of Systems of (In)Equations and the Absolute Value Operator
2021
We present an approach and a tool for automatically providing feedback on solutions that involve complicated reasoning patterns. Currently the tool supports linear systems of equations and inequations that may also contain the absolute value operator and a restricted form of rational functions. This suffices for designing problems that are laborious to solve with standard mechanical procedures, but much easier using short-cuts that students may find by creative thinking. Earlier research has found that struggling with important mathematics promotes conceptual development. Our goal is to encourage students to such struggling. A crucial feature is to give them great freedom to choose the path…
Eiropas Savienības solidaritātes klauzula kā krīzes vadības instruments
2019
Darbs “Eiropas Savienības solidaritātes klauzula kā krīzes vadības instruments” izstrādāts ar mērķi aplūkot solidaritātes klauzulas ietvaru un analizēt vai šis instruments būtu uzskatāms par atbilstošu krīžu un katastrofu pārvaldīšanai. Pētījuma balstīts uz salīdzinošo pētījumu metodi. Analīzes veikšanai izmantotas solidaritātes teorija un krīžu un katastrofas pārvaldības teorijas katastrofu pārvaldības cikls. Izpētes rezultāti norāda uz to, Eiropas Savienības solidaritātes klauzula nebūtu uzskatāma par atbilstošu krīžu un katastrofu pārvaldīšanai izmantojumu instrumentu, jo tā ir paredzēta tikai reaģēšanas pasākumu īstenošanai un neparedz risinājumus, kas nodrošinātu pilnīgu pārvaldību, ka…
Resolvent estimates for elliptic quadratic differential operators
2011
Sharp resolvent bounds for non-selfadjoint semiclassical elliptic quadratic differential operators are established, in the interior of the range of the associated quadratic symbol.
Superradiant Quantum Phase Transition for an Exactly Solvable Two-Qubit Spin-Boson Model
2023
A spin-boson-like model with two interacting qubits is analysed. The model turns out to be exactly solvable since it is characterized by the exchange symmetry between the two spins. The explicit expressions of eigenstates and eigenenergies make it possible to analytically unveil the occurrence of first-order quantum phase transitions. The latter are physically relevant since they are characterized by abrupt changes in the two-spin subsystem concurrence, in the net spin magnetization and in the mean photon number.
Water Dynamics in Biological Systems investigated using Neutron Scattering Techniques
Living systems can not survive in absence of the water environments which play a fundamental role in living functions. Thus in the scienti?c community many studies were and are addressed to characterize water and its dynamics properties in biological systems. However, a clear description of water in such systems has been not reached yet. In fact, the investigations performed with di?erent techniques - those based on Nuclear Magnetic Resonance or those based on Neutron Scattering - look at di?erent di?usive motions and interactions water-biomolecules, leading controversial results and hence generating many debates between scientists. In this thesis we support the idea that two water populati…
Problem solving e metacognizione. L’uso didattico del prompt per sviluppare strategie di problem solving nei futuri maestri
2015
Si presentano i risultati di una ricerca che ha coinvolto in totale 235 studenti del corso di Laurea in Scienze della Formazione Primaria dell’Università di Palermo. Con la ricerca si è inteso individuare le metodologie di sostegno atte a promuovere nei futuri maestri da una parte la capacità di identificare e affrontare situazioni scolastiche problematiche in modo adeguato; dall’altra la capacità di riflettere metacognitivamente sul processo di risoluzione del problema. La ricerca costituisce un esempio di come si possa sviluppare nei futuri insegnanti in formazione quell’insieme di abilità cognitive e metacognitive che confluiscono nella capacità di identificare e risolvere situazioni edu…
PRIME RIFLESSIONI SULLA NUOVA CONCILIAZIONE PROPOSTA DALLA CORTE DI GIUSTIZIA TRIBUTARIA
2022
Il contributo analizza l'istituto della nuova conciliazione proposta dalla corte di giustizia tributaria, previsto dall’art. 4, comma 1, lett. g), della legge n. 130 del 2022, che inserisce – nel corpo del novellato d.lgs. n. 546 del 1992 - l’art. 48-bis.1, soffermandosi in particolare sul significato dell'espressione questioni di facile e pronta soluzione.
Combined Spectroscopic and TD-DFT Analysis to Elucidate Substituent and Acidochromic Effects in Organic Dyes: A Case Study on Amino- versus Nitro-Sub…
2020
Made available in DSpace on 2020-12-12T01:33:30Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-01-01 A combined spectroscopic and TD-DFT case study was performed, to identify a robust method to calculate the complex near UV/Vis absorption spectra of various amino- vs. nitro-substituted 2,4-diphenylquinolines, which vary strongly under neutral and successively acidic conditions. For this, different DFT functionals were tested for geometry optimization and the TD part to calculate the neutral and different protonated species in a fast screening approach, i. e. using single point calculations in an implicit solvent. Offset-corrected M06HF, hitherto only applied to polymers, was identif…