Search results for "POSS"
showing 10 items of 345 documents
Kopolimery olefin z alkenylosilseskwioksanami
2016
Artykuł stanowi przegląd literatury dotyczącej syntezy i charakterystyki materiałów hybrydowych uzyskanych na drodze kopolimeryzacji alkenylopodstawionych silseskwioksanów z olefinami. Przedstawiono przykłady wykorzystania m.in. procesów kopolimeryzacji koordynacyjnej do syntezy kopolimerów olefin i silseskwioksanów (POSS). Jednocześnie wskazano korzyści płynące z obecności POSS w strukturze polimeru, które przekładają się na jego zwiększoną odporność termiczną oraz parametry mechaniczne.
Supported Polyhedral Oligomeric Silsesquioxane-Based (POSS) Materials as Highly Active Organocatalysts for the Conversion of CO2
2018
Very high turnover numbers (TON) and productivity values up to 7875 and 740 respectively have been obtained for the conversion of CO2 into cyclic carbonates by using hybrid materials based on imidazolium modified polyhedral oligomeric silsesquioxanes (POSS-Imi) grafted on amorphous silica (SiO2) and mesostructured SBA-15. The heterogeneous organocatalysts were easily prepared via a straightforward synthetic procedure allowing to generate high local concentration spots of imidazolium active sites surrounding the POSS core. This synthetic procedure is also a promising approach for the design of a wide library of hybrid functional materials. The materials do not possess other co-catalytic spec…
Cost-effective forest conservation and criteria for potential conservation targets: a Finnish case study
2008
International audience; Selecting reserves for forest biodiversity maintenance is often done by setting criteria for components of structural elements of biodiversity, such as a volume of decaying wood. We tested how the different threshold values for the components of structural elements affect the cost-effective site selection. Using Finnish National Forest Inventory information and remote sensing data, we determined a habitat quality index and economic value for each site in Satakunta region in Finland. Moreover, we defined several sets of potential conservation targets using alternative criteria for the habitat quality index developed for the Finnish case study. These figures were used …
2019
Conflicts between biodiversity conservation and resource production can be mitigated by multi-objective management planning. Optimizing management for multiple objectives over larger land areas likely entails trading off the practicability of the process against the goodness of the solution. It is therefore worthwhile to resolve how large areas are required as management planning regions to reconcile conflicting objectives as effectively as possible. We aimed to reveal how the extent of forestry planning regions impacts the potential to mitigate a forestry-conservation conflict in Finland, represented as a trade-off between harvest income and deadwood availability. We used forecasted data f…
Play it by ear? An ERP study of Chinese polysemous verb yǒu
2021
Abstract Mandarin Chinese yŏu is a polysemous verb. It can be interpreted as meaning either ‘have’ or ‘there be/exist’ in sentences of the form ‘NP1 yŏu NP2’, which can correspondingly be analyzed as either a Have-Possessive construction (‘NP1 has NP2’) or an existential/locative construction (‘(At/in) NP1 there is NP2’), or both. This study used event-related brain potentials to investigate whether and how the interpretation of yŏu in a given ‘NP1 yŏu NP2’ construction is determined by the semantics of the nouns involved and their relationship. Twenty-seven participants read sentences of this construction. The results showed that there were different patterns of brain activity that can be …
Implementation of a Positive Technology Application in Patients With Eating Disorders: A Pilot Randomized Control Trial.
2018
Background: Positive psychological interventions (PPIs) have been suggested to produce benefits in patients with eating disorders (ED) by improving well-being, which might act as a buffer of the harmful effects caused by the disorder. Best Possible Self (BPS) is a PPI which consists of writing and envisioning a future where everything has turned out in the best possible way. In this regard, positive technology (PT) can be of considerable benefit as it allows to implement specific PPIs that have already shown efficacy. Objective: This study tested the preliminary efficacy of the BPS exercise implemented through a PT application and carried out for 1 month, in improving positive functioning m…
Cuestiones varias en torno a la determinación de la filiación por doble paternidad
2018
The article 7.3 of the law 14/2006, of May 26 on technologies of human assisted reproduction establishes the possibility of determining legally the double maternity of married women and not separated legally or of fact, when the not biological mother consents that filiation decides to his favor the respect of the born son of his spouse. In the suppositions not regulated in the mentioned rule the Supreme Court in relation with equal women?s homosexuality in judgment of December 5, 2013 and January 15, 2014 applies the civil code and allows to determine judicially the maternity by means of the exercise of an action of claim for possession of status foreseen in the article 131. In the present …
Thermomineral waters of Greece: geochemical characterization
2020
Modulação gênica em embriões humanos
2018
O recente implemento de moderna tecnologia -CRISPR/Cas9- possibilitou o avanço inquestionável da edição gênica em linhagem germinativa humana, seja por meio da manipulação de células precursoras de gametas, células tronco pluripotentes, gametas ou, até mesmo, de embriões. Mesmo levando em conta os benefícios terapêuticos preventivos demonstrados nas pesquisas básicas e préclínicas em embriões humanos, tais investigações encontram barreiras de aceitação em todo o mundo. Tal situação exige mudança de atitude no sentido de incrementar o debate em torno da aplicabilidade dessas novas tecnologias. Assim, a adequação das atuais regulamentações faz-se necessária e deve incluir a superação dos desa…
Equality by reason of filiation and succession law
2019
El principio constitucional de igualdad en la filiación juega solamente en relación con sucesiones abiertas con posterioridad a la entrada en vigor de la constitución. Se examina la jurisprudencia más reciente sobre la materia. The constitutional principle of equality of filiation only applies to successions opened after the entry into force of the constitution. The paper reviews the most recent case law on the subject.