Search results for "HAp"
showing 10 items of 2767 documents
Reactions of m-Terphenyl-Stabilized Germylene and Stannylene with Water and Methanol: Oxidative Addition versus Arene Elimination and Different React…
2015
Reactions of the divalent germylene Ge(ArMe6)2 (ArMe6 = C6H3-2,6-{C6H2-2,4,6-(CH3)3}2) with water or methanol gave the Ge(IV) insertion product (ArMe6)2Ge(H)OH (1) or (ArMe6)2Ge(H)OMe (2), respectively. In contrast, its stannylene congener Sn(ArMe6)2 reacted with water or methanol to produce the Sn(II) species {ArMe6Sn(μ-OH)}2 (3) or {ArMe6Sn(μ-OMe)}2 (4), respectively, with elimination of ArMe6H. Compounds 1–4 were characterized by IR and NMR spectroscopy as well as by X-ray crystallography. Density functional theory calculations yielded mechanistic insight into the formation of (ArMe6)2Ge(H)OH and {ArMe6Sn(μ-OH)}2. The insertion of an m-terphenyl-stabilized germylene into the O–H bond was…
Mono-nitrotolueenien muuntuminen
2008
Redox-Responsive Host-Guest Chemistry of a Flexible Cage with Naphthalene Walls
2020
“Naphthocage”, a naphthalene-based organic cage, reveals very strong binding (up to 1010 M–1) to aromatic (di)cationic guests, i.e., the tetrathiafulvalene mono- and dication and methyl viologen. Intercalation of the guests between two naphthalene walls is mediated by C–H···O, C–H···π, and cation···π interactions. The guests can be switched into and out of the cage by redox processes with high binding selectivity. Oxidation of the flexible cage itself in the absence of a guest leads to a stable radical cation with the oxidized naphthalene intercalated between and stabilized by the other two. Encapsulated guest cations are released from the cavity upon cage oxidation, paving the way to futur…
Znaczenie środowiska proksemicznego w psychoterapii : przesłanki neurobiologiczne
2018
W publikacji podjęto próbę ustalenia wpływu różnych elementów proksemiki (środowiska fizycznego) na przebieg psychoterapii, a zwłaszcza na komunikację między terapeutą i pacjentem. Skupiono się przede wszystkich na takich wymiarach proksemiki, jak dystans fizyczny, wystrój gabinetu terapeutycznego i aranżacja miejsc siedzących. Autor uzasadnia potrzebę przejawiania większej dbałości o komunikację proksemiczną w relacji terapeutycznej najnowszą wiedzą z zakresu neurobiologii, dotyczącą znaczenia wzbogaconego środowiska fizycznego dla neurogenezy i synaptogenezy — powstawania nowych komórek nerwowych i połączeń między nimi. Autor podaje sposoby tworzenia i monitorowania („mapowania”) środowis…
Cancer prevention with aspirin in hereditary colorectal cancer (Lynch syndrome), 10-year follow-up and registry-based 20-year data in the CAPP2 study…
2020
Background: Lynch syndrome is associated with an increased risk of colorectal cancer and with a broader spectrum of cancers, especially endometrial cancer. In 2011, our group reported long-term cancer outcomes (mean follow-up 55·7 months [SD 31·4]) for participants with Lynch syndrome enrolled into a randomised trial of daily aspirin versus placebo. This report completes the planned 10-year follow-up to allow a longer-term assessment of the effect of taking regular aspirin in this high-risk population. Methods: In the double-blind, randomised CAPP2 trial, 861 patients from 43 international centres worldwide (707 [82%] from Europe, 112 [13%] from Australasia, 38 [4%] from Africa, and four [<…
Non-structural proteins P17 and P33 are involved in the assembly of the internal membrane-containing virus PRD1.
2015
AbstractBacteriophage PRD1, which has been studied intensively at the structural and functional levels, still has some gene products with unknown functions and certain aspects of the PRD1 assembly process have remained unsolved. In this study, we demonstrate that the phage-encoded non-structural proteins P17 and P33, either individually or together, complement the defect in a temperature-sensitive GroES mutant of Escherichia coli for host growth and PRD1 propagation. Confocal microscopy of fluorescent fusion proteins revealed co-localisation between P33 and P17 as well as between P33 and the host chaperonin GroEL. A fluorescence recovery after photobleaching assay demonstrated that the diff…
Theoretical characterization of the photochemical reaction CO2+O(3P)→CO+O2 related to experiments in solid krypton
2020
Formation and decomposition of the complex of carbon dioxide and atomic oxygen are characterized by quantum chemistry methods aiming to rationalize experimental studies in solid krypton. The observed FTIR spectra reflected the temporal evolution of the system after irradiation showing the bands of reactants, intermediates and products. Advanced quantum chemistry calculations show that the T-shape complex CO2…O(3P) can be formed in the matrix. Its excitation by the 193 nm light results in the charge-transfer state CO2+…O-, which evolves to the reaction intermediate CO3. The latter species decomposes to CO + O2 following pathways on the excited state energy surfaces. peerReviewed
Autophagy
2012
Klionsky, Daniel J. et al.
Spectral shapes of forbidden argon β decays as background component for rare-event searches
2018
The spectral shape of the electrons from the two first-forbidden unique ${\beta }^{-}$ decays of 39Ar and 42Ar were calculated for the first time to the next-to-leading order. Especially the spectral shape of the 39Ar decay can be used to characterize this background component for dark matter searches based on argon. Alternatively, due to the low thresholds of these experiments, the spectral shape can be investigated over a wide energy range with high statistics and thus allow a sensitive comparison with the theoretical predictions, in particular at low electron energies where the shape of the computed β spectrum has a slight dependence on the value of the weak axial-vector coupling constan…
Rola serwisu internetowego w promocji działalności towarzystw bibliofilskich
2007
Towarzystwa bibliofilskie, aby rozwijać się w XXI w., muszą dotrzeć do społeczeństwa za pomocą Internetu. Obecnie dużą rolę w propagowaniu działalności na polu miłośnictwa książek odgrywa posiadanie własnego serwisu WWW. W artykule uzasadniono potrzebę promocji towarzystw bibliofilskich w Internecie. Omówiono skuteczność wykorzystania w tym celu serwisu internetowego. Przedstawiono możliwości jego zastosowania w działalności promocyjnej oraz public relations na przykładzie serwisu Rycerskiego Zakonu Bibliofilskiego z Kapitułą Orderu Białego Kruka w Krakowie, który powstał w ramach pracy magisterskiej autorki artykułu. Omówiono projekt serwisu oraz etapy jego tworzenia. Przedstawiono wyniki …