Search results for "AlON"
showing 10 items of 799 documents
Lack of APP and APLP2 in GABAergic Forebrain Neurons Impairs Synaptic Plasticity and Cognition.
2020
AbstractAmyloid-β precursor protein (APP) is central to the pathogenesis of Alzheimer’s disease, yet its physiological functions remain incompletely understood. Previous studies had indicated important synaptic functions of APP and the closely related homologue APLP2 in excitatory forebrain neurons for spine density, synaptic plasticity, and behavior. Here, we show that APP is also widely expressed in several interneuron subtypes, both in hippocampus and cortex. To address the functional role of APP in inhibitory neurons, we generated mice with a conditional APP/APLP2 double knockout (cDKO) in GABAergic forebrain neurons using DlxCre mice. These DlxCre cDKO mice exhibit cognitive deficits i…
Biomarkers of lipid peroxidation in the aqueous humor of primary open-angle glaucoma patients
2016
Objective To investigate the lipid peroxidation (PEROX) processes in primary open-angle glaucoma (POAG) patients, and whether this mechanism may be related to disease progression. Material and methods A prospective, observational, cross-sectional, non-experimental, and analytical study was conducted on a case and a comparison group, consisting of 175 surgical patients divided into: (1) POAG group (GG; n = 88) and (2) comparison group of patients with cataracts (CG; n = 87). Demographic data, patient characteristics, lifestyle data, as well as ophthalmological examination were registered in an Excel spreadsheet. Biochemical data were obtained by processing the aqueous humor collected at the …
Post-fotografia etnografica
2021
È evidente come la nostra società tecnologica sia legata senza alcun dubbio alla diffusione delle immagini. Autori come Gottfried Boehm, John Mitchell, Hans Belting hanno indagato la natura dell'immagine ponendo le basi, negli anni Novanta, per l'idea di un pictorial turn, di una cultura totalmente dominata dalle immagini che è diventata adesso una possibilità tecnica reale su scala globale. Un nuovo statuto dell'immagine che si usa raccogliere sotto l'etichetta di iconic turner inserito nel più vasto campo visual culture studies. L'uso del termine cultura accanto a quello di visuale è indicativo dell'ampiezza del campo d'indagine che visual culture studies si prefiggono di ricercare: essi …
Zvaigžņotā Debess: 2008, Rudens
2008
Latvijas Zinātņu akadēmija, Latvijas Universitāte
Benzaldehīda kondensācijas reakcijas ar etilciānoacetātu un malonskābi jonu šķidrumos
2015
Benzaldehīda kondensācijas reakcijas ar etilciānoacetātu un malonskābi jonu šķidrumos. Kolesnikova K., zinātniskais vadītājs Dr.h.ķīm., prof. Zicmanis A. Maģistra darbs, 79 lappuses, 53 attēli, 24 tabulas, 69 literatūras avoti. Latviešu valodā. Maģistra darbā ir apkopota vispārīga informācija par jonu šķidrumiem: iegūšanas metodēm, to īpašībām un izmantošanas iespējām, kā arī aplūkota literatūra par Knēvenāgela kondensāciju un tās Dēbnera modifikāciju. Darbā ir veikta vairāku jonu šķidrumu sintēze. Iegūto jonu šķidrumu struktūras tika pieradītas ar 1H KMR spektroskopijas metodi, tad JŠ tika izmantoti kā šķīdinātāji Knēvenāgela kondensācijas reakcijā un Knēvenāgela-Dēbnera kondensācijas reak…
Projekts: Skaistumkopšanas salona "SK Elegance" dibināšana
2018
Darba mērķis: Jaunas sabiedrības ar ierobežotu atbildību dibināšana, kas darbojas skaistumkopšanas pakalpojumu nozarē. Maģistra darbs sastāv no septiņām nodaļām. Katra nodaļa ietver sevī svarīgu informāciju par jaunā uzņēmuma dibināšanas iespējamību un nepieciešamību. Maģistra darbs izstrādāts pamatojoties uz speciālo literatūru, interneta resursiem, normatīvajiem aktiem. Darbā izmantotas šādas pētījuma metodes: 1.SVID analīze; 2.Statistiskā analīze; 3.Salīdzināšanas metode; 4.Monogrāfiska metode; 5.Grafiskās analīze. Projekta izstrāde ir nepieciešama jauna uzņēmuma izveidē, lai varētu noskaidrot, vai projekta ideja ir dzīvotspējīga. Autores projekts ir skaistumkopšanas salona SIA „SK Elega…
A hidden species becoming visible : biogeography and ecology of Rhynchotalona latens (Cladocera, Anomopoda, Chydoridae)
2019
A long hidden chydorid (Chydoridae, Cladocera) taxon, first found as fossil specimens and recently redefined as Rhynchotalona latens (Sarmaja-Korjonen et al., Hydrobiologia 436: 165-169, 2000) is investigated for its biogeography and ecology. Late Holocene sediment sequence from Lake Sylvilampi, NE Finnish Lapland, and R. latens spatial distribution in relation to limno-climatic attributes in Finland were examined. Principal component analyses of fossil cladoceran communities showed that R. latens is mostly affiliated with Alonella excisa-Alonopsis elongata-Alonella nana species pool. Generalized linear modeling of R. latens responses to limno-climatic variation indicated that it prefers ac…
Novel Lipophilic Lanthanide Bis-Phthalocyanines Functionalized by Pentadecylphenoxy Groups: Synthesis, Characterization and UV-Photostability
2012
Novel sandwich-type phthalocyanines containing a rare earth metal core (Pr, Nd, Eu-Lu) and macrocycles peripherally substituted by pentadecylphenoxy groups were synthesized using a cardanol-based phthalonitrile precursor and the respective lanthanide acetate. Additionally, the metal free-base analog compound was studied for comparison. The purified reaction products were all found to be thick and viscous substances at room temperature, showing liquid crystalline behavior with a distinct increase in fluidity at ca. 40 ° C. The complexes are readily soluble in chloroalkyl solvents and dissolve fairly well in DMF with some tendency to form aggregates. Besides they are strongly hydrophobic and …
Generation of lanthanide coordination polymers with dicarboxylate ligands: synthesis, structure, thermal decomposition and magnetic properties of the…
2000
The malonate complex of formula [Pr2(C3H2O4)3(H2O)3]·2H2O (1) was prepared and his crystal structure determined by X-ray diffraction methods. 1 crystallizes in the monoclinic space group P21, Z = 4, with unit cell parameters a = 7.631(2), b = 12.899(4), c = 8.923(2) A and β = 101.11(3)°. 1 is a polymer which grows in the (110) plane. The hydrogen bond stabilizes the crystal structure forming a three-dimensional network. The two non-equivalent praseodymium(III) ions have different environments. Finally, the thermal behaviour and magnetic properties were investigated.
Crystal growth and structural remarks on malonate-based lanthanide coordination polymers
2016
The synthesis, structural characterization and thermal study of new coordination polymers (CPs) of formula [Ln2(mal)3(H2O)5]·2H2O [Ln = Ho (1·2H2O), Tb (1a), Dy (1b), Er (1c) and Yb (1d); mal = malonate], [Ln2(mal)3(H2O)6] [Ln = Sm (2) and Ce (2a)], [Ce2(mal)3(H2O)6]·2H2O (3·2H2O) and [Ce2(mal)3(H2O)3]·2H2O (4·2H2O) are presented. Complexes 1–4 have been also characterized by single crystal X-ray diffraction. The structure of 2 was previously reported (Elsegood, M. R. J., Husain, S., Private Communication, 2014) and it is very close to that of 3. In the light of these results and those previously reported in the literature for malonate-containing lanthanide(III) complexes, a detailed overvi…