1,450 research outputs found
Flowers to Òsanyìn: Lychnophora osanyiniana (Asteraceae: Vernonieae) a new "arnica da serra" from Minas Gerais, Brazil
No full textMarques, Danilo, Quaresma, Aline Silva, Meyer, Pablo Burkowski, Nakajima, Jimi (2021): Flowers to Òsanyìn: Lychnophora osanyiniana (Asteraceae: Vernonieae) a new "arnica da serra" from Minas Gerais, Brazil. Phytotaxa 491 (1): 57-64, DOI: 10.11646/phytotaxa.491.1.6, URL: http://dx.doi.org/10.11646/phytotaxa.491.1.
FIGURE 2. Lychnophora osanyiniana. A. Habitat and habit. B. Specimen occurrence habitat. C in Flowers to Òsanyìn: Lychnophora osanyiniana (Asteraceae: Vernonieae) a new "arnica da serra" from Minas Gerais, Brazil
No full textFIGURE 2. Lychnophora osanyiniana. A. Habitat and habit. B. Specimen occurrence habitat. C. Detail of leaves. D. Glomerule with mature florets. E. Glomerule surrounded by subinvolucral bracts. A–E. by P.B. Meyer.Published as part of Marques, Danilo, Quaresma, Aline Silva, Meyer, Pablo Burkowski & Nakajima, Jimi, 2021, Flowers to Òsanyìn: Lychnophora osanyiniana (Asteraceae: Vernonieae) a new "arnica da serra" from Minas Gerais, Brazil, pp. 57-64 in Phytotaxa 491 (1) on page 60, DOI: 10.11646/phytotaxa.491.1.6, http://zenodo.org/record/575719
Observation of a stable carbene at the active site of a thiamin enzyme
No full textCarbenes are highly reactive chemical compounds that are exploited as ligands in organometallic chemistry and are powerful organic catalysts. They were postulated to occur as transient intermediates in enzymes, yet their existence in a biological system could never be demonstrated directly. We present spectroscopic and structural data of a thiamin enzyme in a noncovalent complex with substrate, which implicate accumulation of a stable carbene as a major resonance contributor to deprotonated thiamin
Which kind of philosopher was Danilo Pejović?
No full textU ovom kratkom prilogu autorica pokušava opisati narav Danila Pejovića kao filozofa. Njegovo bitno obilježje bila je filozofijska i svetovna suverenost.In this short contribution the author tries to describe the nature of Danilo Pejović as a philosopher. His main characteristic was a philosophical and secular sovereignity
Degradation of lipoxygenase-derived oxylipins by glyoxysomes from sunflower and cucumber cotyledons
No full textBackground: Oilseed germination is characterized by the degradation of storage lipids. It may proceed either via the direct action of a triacylglycerol lipase, or in certain plant species via a specific lipid body 13-lipoxygenase. For the involvement of a lipoxygenase previous results suggested that the hydroxy-or oxo-group that is being introduced into the fatty acid backbone by this lipoxygenase forms a barrier to continuous beta-oxidation. Results: This study shows however that a complete degradation of oxygenated fatty acids is possible by isolated cucumber and sunflower glyoxysomes. Interestingly, degradation is accompanied by the formation of saturated short chain acyl-CoAs with chain length between 4 and 12 carbon atoms lacking the hydroxy-or oxo-diene system of the oxygenated fatty acid substrate. The presence of these CoA esters suggests the involvement of a specific reduction of the diene system at a chain length of 12 carbon atoms including conversion of the hydroxy-group at C7. Conclusions: To our knowledge this metabolic pathway has not been described for the degradation of polyunsaturated fatty acids so far. It may represent a new principle to degrade oxygenated fatty acid derivatives formed by lipoxygenases or chemical oxidation initiated by reactive oxygen species.Deutsche Forschungs Gemeinschaft [FE 446/4
O realismo de Danilo Zolo
No full textThe article aims to make an analysis of the main aspects of the thought of Danilo Zolo, who turned 80 in January 2016. Initially, we examine the epistemological foundations of the legal realism proposed by Zolo. Then we deal with the significance of this realism for a possible theory of democracy. Finally, we analyze the contributions of that author to the philosophy of international law, which made him one of the leading thinkers in this area in recent decades.Keywords: philosophy of law, political philosophy, legal realism.O artigo se propõe a fazer uma análise de aspectos centrais do pensamento do jusfilósofo Danilo Zolo, que completou 80 anos em janeiro de 2016. Inicialmente, examina os fundamentos epistemológicos do realismo jurídico proposto por Zolo. Em seguida, aborda a significância desse realismo para uma possível teoria da democracia. Por fim, analisa as contribuições do referido autor para a filosofia do direito internacional, as quais o colocam como um dos mais destacados pensadores desta área nas últimas décadas.Palavras-chave: filosofia do direito, filosofia política, realismo jurídico
La prospettiva pluralistica e multiculturale in Danilo Zolo
No full textThis essay takes into consideration the pluralistic perspective in Danilo
Zolo’s thought, dealing with the way in which the multiculturalist theme is situated
in the legal-philosophical reflection of the author. In this regard, the article underlines
a pioneering attention to multiculturalism as a theoretical approach inextricably
linked to the political and legal dimension. The analysis will focus on the connection
between the multiculturalist instance and Zolo’s substantive approach on citizenship,
in the context of a discourse on the concept of national belonging. Finally, within a
brief dialogue with Danilo Zolo starting from the Canadian experience, the paper aims
to highlight the difference between an analytical and interpretative horizon focused
on the crisis of the monistic Nation-State and a radical disarticulation of national
citizenship
Kinetische und strukturelle Untersuchung der Katalysemechanismen ausgewählter Kofaktor-abhängiger Enzyme - Implikationen für die Decarboxylierung von α-Ketosäuren durch Thiamindiphosphat-abhängige Enzyme
No full textThDP-abhängige Enzyme, welche α-Ketosäuren umsetzen, sehen sich mit zwei Problemen konfrontiert. Zum Einen müssen sie gleichermaßen eine effiziente Decarboxylierung des ersten kovalenten Intermediats gewährleisten (106-fache Beschleunigung). Andererseits muss das daraufhin gebildete reaktive Carbanion auf sehr spezifische Weise unter Vermeidung von Nebenreaktionen umgesetzt werden. Im Rahmen der Promotionsarbeit konnten unter Verwendung verschiedener strukturbiologischer, kinetischer und thermodynamischer Methoden Prinzipien gefunden werden, nach denen Enzyme diese Prozesse gewährleisten. Der methodische Fokus lag auf der spektroskopischen und 1H-NMR-basierten Analyse von Reaktionsintermediaten, der Benutzung von substratanalogen Verbindungen und der röntgenkristallographischen Untersuchung von verschieden gesoakten Enzym-Kristallen. Dafür wurden einerseits Enzyme untersucht, welche das gleiche Substrat decarboxylieren, in denen aber die Umsetzung des post-Decarboxylierungsintermediats variiert (LpPOX, ZmPDC). Zum Anderen wurden Enzyme verglichen, welche verschiedene Substrate decarboxylieren, die aber eine vergleichbare Umsetzung des jeweiligen Carbanion gewährleisten (ZmPDC, PpBFDC). Desweiteren konnte eine Enzymvariante identifiziert werden, welche durch die kinetische Stabilisierung des reaktiven Carbanion-Intermediats ein hohes Potential zu pharmazeutisch interessanten Carboligationsreaktionen aufweist.von Danilo Meye
Pisanie Ojca. „Gen schulzowski” w prozie Danilo Kiša
No full textDanilo Kiš claimed that his favorite works of other writers not only contributed to his own books as their “ancestors,” but also became parts of his spiritual DNA. The author makes an attempt at finding the “Schulzean gene” in The Family Circus and reveal the invisible presence of Schulz in other works by Kiš. Schulz has not been mentioned there, but he remains “present through his absence,” just like Kiš’s father, the protagonist of Hourglass, called “a novel about absence.
Early Christian Bird-shaped Fibulae in the Light of Unpublished Finds from Danilo and Podumci
No full textAutor analizira dvije neobjavljene pticolike fibule koje je pronašao Dane Maretić na širem području šibenskog zaleđa, točnije na položajima Danilo – Gradina i Podumci – Maretića umac. Fibula iz Danila čuva se u muzejskoj zbirci samostana na Visovcu, dok je ona iz Podumaca u posjedu nalaznika. Fibule su izrađene od bronce u punoj plastici te prikazuju ptice sklopljenih krila. U radu su ukratko opisane i plošne fibule jer autor smatra da pripadaju istom kulturnom i vremenskom horizontu. Donosi se mišljenje da plastično rađene fibule predstavljaju goluba ili grlicu, što se povezuje s kršćanskom simbolikom. S obzirom na činjenicu da su analizirane fibule pronađene zajedno s germanskim nalazima, te na temelju usporednih primjeraka sa šireg prostora Europe, autor fibule iz Podumaca i Danila datira u razdoblje 5. ili 6. st.The author analyzes two unpublished bird-shaped fibulae found by Dane Maretić in the wider area of the Šibenik hinterland, more precisely on the sites of Danilo – Gradina (Hillfort) and Podumci – Maretića umac. The fibula from Danilo is kept in the Museum Collection of the Monastery on Visovac, while the one from Podumci is in the possession of the finder. The fibulae are made of bronze in full sculpture and they depict birds with folded wings. The plate fibulae are also briefly described in the work as the author believes that they belong to the same cultural and chronological horizon. The opinion is put forward that the plastically rendered fibulae depict a pigeon or a turtle-dove, which is connected with Christian symbolism. Considering the fact that the analyzed fibulae were found together with Germanic finds, and based on comparative pieces from the wider territory of Europe, the author dates the fibulae from Podumci and Danilo to the period of the 5th or 6th cent. A.D
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