Search results for "HDI"
showing 10 items of 789 documents
A linear Fe-O-Fe unit in bis(dibenzyldimethylammonium)-oxo-di[tribromoferrate(III)]
2006
The title compound, (C16H20N)2[Fe2Br6O], crystallizes with one dibenzyldimethylammonium cation and one half of a [mu]-oxo-bis[tribromoferrate(III)] anion in the asymmetric unit. The bridging oxo group is situated on an inversion centre, resulting in a linear conformation for the Fe-O-Fe unit. The iron(III) cations have tetrahedral geometry, with bond angles in the range 106.8 (1)-112.2 (1)°. The ion pairs are held together by Coulombic forces and C-H...Br hydrogen bonds. Each Br- anion forms one hydrogen bond. No C-H...O hydrogen bonds are found between the O atom in the Fe-O-Fe unit and surrounding counter-cations, consistent with the linear configuration of the Fe-O-Fe unit. peerRevie…
Portugal flüchtet sich in die Arme der EU. Welche Funktion erfüllen Metapher und Metonymie im wirtschaftlichen Diskurs der Massenmedien?
2014
International audience
Palladium(II)-Stabilized Pyridine-2-Diazotates: Synthesis, Structural Characterization, and Cytotoxicity Studies
2018
Well-defined diazotates are scarce. Here we report the synthesis of unprecedented homoleptic palladium(II) diazotate complexes. The palladium(II)-mediated nitrosylation of 2-aminopyridines with NaNO2 results in the formation of metal-stabilized diazotates, which were found to be cytotoxic to human ovarian cancer cells.
Helicates with Ether-Substituted Catechol Esters as Ligands
2020
European journal of organic chemistry 2020(32), 5161-5172 (2020). doi:10.1002/ejoc.202000843
Reliable fluorescence technique to detect the antibiotic colistin, a possible environmental threat due to its overuse.
2022
AbstractColistin, considered a drug of last resort as it is effective towards multidrug-resistant Gram-negative bacterial infections. Oral administration of colistin in the poultry industry is a common practice, not only to prevent and reduce bacterial infections, but also as a rapid-growth promoter. Long-term exposure to any antibiotic will eventually lead to the development of bacterial resistance towards all antibiotics through various mechanisms in the physiological system and environment. Chicken is the most consumed source of animal protein for humans throughout the world. In addition, the manure of poultry, containing traces of the used antibiotics, is being used in farming. Exposure…
Hyper-CEST NMR of metal organic polyhedral cages reveals hidden diastereomers with diverse guest exchange kinetics.
2022
AbstractGuest capture and release are important properties of self-assembling nanostructures. Over time, a significant fraction of guests might engage in short-lived states with different symmetry and stereoselectivity and transit frequently between multiple environments, thereby escaping common spectroscopy techniques. Here, we investigate the cavity of an iron-based metal organic polyhedron (Fe-MOP) using spin-hyperpolarized 129Xe Chemical Exchange Saturation Transfer (hyper-CEST) NMR. We report strong signals unknown from previous studies that persist under different perturbations. On-the-fly delivery of hyperpolarized gas yields CEST signatures that reflect different Xe exchange kinetic…
Onko kissantappo taidetta? : kamppailua taiteen määrittelyvallasta
2014
Tämän tutkimuksen kohteena on suomalainen taidekeskustelu 1990-luvun taitteesta 2000-luvulle. Tutkimuksen aineisto koostuu pääosin Teemu Mäen videoteoksista Sex and death (1989) sekä My way, a work in progress (1994) kirjoitetuista sanomalehtiteksteistä sekä näihin teoksiin liitty-vistä muista teksteistä ja materiaalista, kuten oikeudenkäyntiasiakirjoista, eduskuntakysymyksistä, radio-ohjelmista ja keskustelupalstaviesteistä. Tutkimuksessa selvitetään, mistä vuosina 1990 ja 2004 käydyissä Mäen teoksiin liittyvissä julkisissa keskusteluissa oli kyse. Tutkimus ponnistaa aiemmasta suomalaisia kulttuurikiistoja koskevasta tutkimuksesta, institutionaalisesta taideteoriasta sekä taiteen ja taitei…
Britannian vaikutusvalta maailmassa edellyttää Euroopan kanssa toimimista
2017
In the shadow of COVID-19: A randomized controlled online ACT trial promoting adolescent psychological flexibility and self-compassion.
2023
Background Although some adolescents managed to cope well with the challenges brought on by the COVID-19 pandemic, the well-being of many was adversely affected due to school closures, distance education, restrictions on gathering with friends, and limited access to mental health services. Many adolescents reported increased anxiety and depression as well as decreased psychological wellbeing due to the pandemic. Consequently, there is a need for psychological support that exceeds the strained resources available to schools to support young people during times of crisis and societal pressure. Objective The present study aimed to explore the effects of an online-delivered ACT intervention to …
Exposure to retene, fluoranthene, and their binary mixture causes distinct transcriptomic and apical outcomes in rainbow trout (Oncorhynchus mykiss) …
2022
Polycyclic aromatic hydrocarbons (PAHs) are widely spread environmental contaminants which affect developing organisms. It is known that improper activation of the aryl hydrocarbon receptor (AhR) by some PAHs contributes to toxicity, while other PAHs can disrupt cellular membrane function. The exact downstream mechanisms of AhR activation remain unresolved, especially with regard to cardiotoxicity. By exposing newly hatched rainbow trout alevins (Oncorhynchus mykiss) semi-statically to retene (32 µg l−1; AhR agonist), fluoranthene (50 µg l−1; weak AhR agonist and CYP1a inhibitor) and their binary mixture for 1, 3, 7 and 14 days, we aimed to uncover novel mechanisms of cardiotoxicity using a…