Search results for "Sol"
showing 10 items of 23782 documents
CCDC 1020496: Experimental Crystal Structure Determination
2014
Related Article: Huayan Yang , Yu Wang , Juanzhu Yan , Xi Chen , Xin Zhang , Hannu Häkkinen , and Nanfeng Zheng|2014|J.Am.Chem.Soc.|136|7197|doi:10.1021/ja501811j
Jezus Chrystus jako obraz Nieprzedstawialnego. Teologia chrześcijańska w kontekście filozofii postmodernistycznej
2013
La aplicación del derecho extranjero en iberoamérica y la unión europea: : paralelismos desde la diferencia
2021
The potential application of a foreign law constitutes the logical outcome of any Private International Law? system. However, and despite its relevance, this issue lacks a common answer in the EU. In contrast to this, the analysis of the solutions drafted in Latin America as regards this issue grants a novel dimension to the European situation on this issue as well as highlights a meritorious reality that shows a high and very relevant degree of harmonization
Maksātnespējas procesa efektivitātes problēmas un to prevencija.
2017
Maksātnespējas procesa efektivitātes problēmas un maksātnespējas procesa dalībnieku vilšanās procesā. Sabiedrība pēdējā laikā tiek informēta par šādu un līdzīgu problēmu esamību. Ņemot vērā pašreizējo sabiedrības ekonomisko saistību un finansiālo pienākumu nastu, kura jānes katram iedzīvotājam, neviens nav pasargāts no tādu procesu sakritības, kura noved pie maksātnespējas. Tādēļ, lai nepieļautu turpmāku maksātnespējas procesa efektivitātes principa pārkāpšanu, kas kavētu procesa gaitu un kaitētu tā rezultātam, ir ļoti svarīgi noteikt pašreizējo maksātnespējas procesa efektivitātes problēmjautājumus un rast uz tiem atbildes. Šajā pētījumā analizējot maksātnespējas likumu, judikatūru un citu…
Formation of Si/SiO2 Luminescent Quantum Dots From Mesoporous Silicon by Sodium Tetraborate/Citric Acid Oxidation Treatment
2019
We propose a rapid, one-pot method to generate photoluminescent (PL) mesoporous silicon nanoparticles (PSiNPs). Typically, mesoporous silicon (meso-PSi) films, obtained by electrochemical etching of monocrystalline silicon substrates, do not display strong PL because the silicon nanocrystals (nc-Si) in the skeleton are generally too large to display quantum confinement effects. Here we describe an improved approach to form photoluminescent PSiNPs from meso-PSi by partial oxidation in aqueous sodium borate (borax) solutions. The borax solution acts to simultaneously oxidize the nc-Si surface and to partially dissolve the oxide product. This results in reduction of the size of the nc-Si core …
"Kids' skills" program and its use in educational and therapeutic work with children in foster families
2018
The paper deals with the issue of foster care as a form of substitute family care in the Czech Republic. In the introduction, the author draws attention to the changes in numbers of children placed in institutions providing institutional care after the amendment o f the Act on Social and Legał Protection of Children No. 401/2012 Coli., with subsequent amendments. The author also describes the institution of foster care for the transitional period and the process of preparing families for the admission of a new member. In this context, the „Kids’ Skills” method is an effective way to work creatively and playfully, with the focus on cooperation. This method was developed by Finnish therapists…
Effect of thermal annealing on the luminescence of defective ZnO nanoparticles synthesized by pulsed laser ablation in water
2016
This work concerns ZnO nanoparticles (NPs), with sizes of tens of nm, produced by ablation with a pulsed Nd:YAG laser of a Zn plate in H2O. TEM images evidence the formation of nanoparticles with sizes of tens of nm. Moreover, HRTEM images and Raman spectra show that the distance between the crystalline planes and the vibrational modes are consistent with ZnO nanocrystal in wurtzite structure. Their optical properties are characterized by two emission bands both excited above the energy gap (3.4 eV): the first at 3.3 eV is associated with excitons recombination, the second at 2.2 eV is proposed to originate from a singly ionized oxygen vacancy. The green emission is independent of water pH,…
Modeling and experimental approaches for the characterization of phase equilibria in polymer solutions
2012
Calculation of ternary polymer solution phase diagram via compressible lattice fluid model extended to specific interactions
2012
Ternary polymer solutions are currently employed for the production of porous structures (e.g. membranes and scaffolds for tissue engineering) via liquid-liquid phase separation techniques. The relation between processing conditions and thermodynamic features of the considered polymeric system determines the morphology of the as-prepared membrane. Therefore, in order to achieve a better control on a porous structure, a deep characterization of the phase behavior of a polymer solution is needed. The experimental derivation of phase diagrams is highly cost and time consuming, thus usually the cloud point curves of the system are directly measured. In this work, the compressible lattice fluid …
Latvijas rūpniecībai aktuālu farmaceitiski aktīvo vielu kristālsolvāti
2013
ANOTĀCIJA Promocijas darbs veltīts Latvijas tautsaimniecībai aktuālu farmaceitiski aktīvo vielu (FAV) izpētei. Veikti apskatīto vielu kristālsolvātu meklējumi un iegūtas līdz šim neaprakstītas vielu kristāliskās formas. Novērtēta iegūto formu stabilitāte iegūšanas, ražošanas un uzglabāšanas apstākļos. Atsevišķām FAV veikta struktūras noteikšana, gan izmantojot pulvera rentgendifraktometriju, gan monokristālu rentgendifraktometriju. Iegūtie rezultāti ir aktuāli zāļu ražotājiem, kā arī tiem ir zinātniska nozīme no FAV īpašību apzināšanas un metožu attīstības viedokļa. Atslēgas vārdi: kristālsolvāti, vielas stāvokļa diagramma, nestehiometriskie solvāti, vielu termodinamiskā stabilitāte, fāžu p…