Search results for "Tereo"

Ortodoksisen siirtoväen kontrolloitu sopeutuminen. Sosiaalinen kontrolli sopeuttamisen välineenä

2012

Discovery of a new class of sortase a transpeptidase inhibitors to tackle gram-positive pathogens: 2-(2-phenylhydrazinylidene)alkanoic acids and rela…

2016

A FRET-based random screening assay was used to generate hit compounds as sortase A inhibitors that allowed us to identify ethyl 3-oxo-2-(2-phenylhydrazinylidene)butanoate as an example of a new class of sortase A inhibitors. Other analogues were generated by changing the ethoxycarbonyl function for a carboxy, cyano or amide group, or introducing substituents in the phenyl ring of the ester and acid derivatives. The most active derivative found was 3-oxo-2-(2-(3,4dichlorophenyl)hydrazinylidene)butanoic acid (2b), showing an IC50 value of 50 µM. For a preliminary assessment of their antivirulence properties the new derivatives were tested for their antibiofilm activity. The most active compo…

Development and testing of a tool for learning stereometry at high school: Oral presentation

2021

Thermodynamic and spectroscopic study of the binding of dimethyltin(IV) by citrate at 25°C

2006

Thermodynamic (potentiometric and calorimetric) and spectroscopic ( 1 H NMR, 119 Sn Mossbauer) studies were performed in aqueous solution in order to characterize the interaction of dimethyltin(IV) cation with citrate ligand. Six species {(CH 3 ) 2 Sn(cit) - ; [(CH 3 ) 2 Sn] 2 (cit) 2 2- ; (CH 3 ) 2 Sn(cit)H 0 ; (CH 3 ) 2 Sn(cit)OH 2- ; [(CH 3 ) 2 Sn] 2 (cit)OH 0 ; [(CH 3 ) 2 Sn] 2 (cit)(OH) 2 - } were found. All the species formed in this system are quite stable and formation percentages are fairly high. For example, at pH = 7.5 and C (CH3)2Sn = C cit = 10 mmol l -1 , E% for [(CH 3 ) 2 Sn] 2 (cit)(OH) 2 - and (CH 3 ) 2 Sn(cit)OH 2- species reaches 65%. Overall thermodynamic parameters obta…

A Theoretical and Experimental Investigation of the Spectroscopic Properties of a DNA-Intercalator Salphen-Type ZnIIComplex

2014

The photophysical and DNA-binding properties of the cationic zinc(II) complex of 5-triethylammonium methyl salicylidene ortho-phenylenediiminato (ZnL 2 + ) were investi- gated by a combination of experimental and theoretical methods. DFT calculations were performed on both the ground and the first excited states of ZnL 2 + and on its possi- ble mono- and dioxidation products, both in vacuo and in selected solvents mimicked by the polarizable continuum model. Comparison of the calculated absorption and fluores- cence transitions with the corresponding experimental data led to the conclusion that visible light induces a two-elec- tron photooxidation process located on the phenylenediimi- nato…

BODIPY atropisomer interconversion, face discrimination, and superstructure appending

2016

International audience; A strategy was developed to append sterically hindered apical pickets on both faces of the BODIPY platform to prevent stacking and aggregation. Ortho-substitution of both the meso-phenyl ring and the boron-bound catechol affords the right directionality to append pickets, achieve face discrimination, featuring two inter-convertible atropisomers, and is reminiscent of the picket-fence strategy in porphyrins.

Remote Sensing of 3-D Geometry and Surface Moisture of a Peat Production Area Using Hyperspectral Frame Cameras in Visible to Short-Wave Infrared Spe…

2016

Miniaturized hyperspectral imaging sensors are becoming available to small unmanned airborne vehicle (UAV) platforms. Imaging concepts based on frame format offer an attractive alternative to conventional hyperspectral pushbroom scanners because they enable enhanced processing and interpretation potential by allowing for acquisition of the 3-D geometry of the object and multiple object views together with the hyperspectral reflectance signatures. The objective of this investigation was to study the performance of novel visible and near-infrared (VNIR) and short-wave infrared (SWIR) hyperspectral frame cameras based on a tunable Fabry–Pérot interferometer (FPI) in measuring a 3-D digital sur…

Studying the Cognitive Map of the US States: Ideology and Prosperity Stereotypes Predict Interstate Prejudice

2018

What are the spontaneous stereotypes that U.S. citizens hold about the U.S. states? We complemented insights from theory-driven approaches to this question with insights from a novel data-driven approach. Based on pile sorting and spatial arrangement similarity ratings for the states, we computed two cognitive maps of the states. Based on ratings for the states on ∼20 candidate dimensions, we interpreted the dimensions that spanned the two maps (Studies 1 and 2). Consistent with the agency/socioeconomic success, conservative-progressive beliefs, and communion (ABC) model of spontaneous stereotypes, these dimensions that participants spontaneously used to rate the states’ similarity included…

Reāla laika stereo attēlu korekcija, izmantojot programmējamos loģikas masīvus

2018

Bakalaura darba mērķis ir veikt lēcas radiālo kropļojumu labošanas un attēlu izlīdzināšanas algoritmu izpēti, kā arī veikt to implementāciju programmējamos loģikas masīvos, kā sastāvdaļu no stereo redzes sistēmas, kas paredzēta attēla dziļuma karšu veidošanai. Autors aprakstīs risinājumu algoritmus un, lai demonstrētu Bakalaura darba ietvaros izvirzītās problēmas iespējamo risinājumu, izmantojot programmējamos loģikas masīvus, darba autors veiks praktiskās daļas izstrādi, kas sastāvēs no lēcas radiālo kropļojumu labošanas un attēlu izlīdzināšanas algoritmu implementācijām VHDL valodā. Darbs sastāv no 55 lappusēm, 18 attēliem, 2 tabulām un 7 pielikumiem. Darbā izmantoti 23 literatūras avoti.

Lokālā stereotesta izstrāde stereoanomālijas novērtēšanai

2018

Maģistra darbs uzrakstīts latviešu valodā uz 40 lapām. Tas satur 25 attēlus, 3 tabulas, 37 literatūras avotu atsauces. Darba mērķis – izstrādāt jaunu, datorizētu smalko disparitāšu lokālās stereoredzes novērtēšanas testu un izpētīt, vai stereoanomālija ir novērojama pie saīsināta stimula demonstrēšanas ilguma. Tika izstrādāts datorizēts anaglifu tipa stereoredzes novērtēšanas tests. Dalībnieku uzdevums – diferencēt, kā stimuls vērts pret references objektu. Pētījumā piedalījās 52 dalībnieki, pusei no dalībniekiem bija normāla stereoredze un pusei izpaudās viena no stereoanomālijām. Dalībniekiem ar normālu stereoredzi bija labāks stereoslieksnis un atbildes laiks, kā arī zemāks kļūdu skaits,…