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Active and peer learning in STEM education strategy

STEM education

Rissanen AJ.
GSID: MeFcgvZgO1cJ
AJ Rissanen - Science education international, 2014 - ERIC

… basic scientific education is also an essential part of the general curriculum. Elements of sustainable education strategy for STEM disciplines are … This study presents only selected aspects, mainly those that may have a wider interest when teaching...

Bis-urea macrocycles with a deep cavity.

Chemical communications (Cambridge, England)

Huang G, He Z, Cai CX, Pan F, Yang D, Rissanen K, Jiang W.
PMID: 26344488
Chem Commun (Camb). 2015 Nov 04;51(85):15490-3. doi: 10.1039/c5cc06768e.

Two configurational isomers of bis-urea macrocycles have been synthesized, and their neutral molecule recognition was studied by X-ray crystallography and (1)H NMR experiments. Cooperative action between the deep cavity and the urea groups and the influence of dipole alignments...

Solvent-free ball-milling subcomponent synthesis of metallosupramolecular complexes.

Chemistry (Weinheim an der Bergstrasse, Germany)

Giri C, Sahoo PK, Puttreddy R, Rissanen K, Mal P.
PMID: 25756211
Chemistry. 2015 Apr 20;21(17):6390-3. doi: 10.1002/chem.201500734. Epub 2015 Mar 10.

Subcomponent self-assembly from components A, B, C, D, and Fe(2+) under solvent-free conditions by self-sorting leads to the construction of three structurally different metallosupramolecular iron(II) complexes. Under carefully selected ball-milling conditions, tetranuclear [Fe4 (AD2 )6 ](4-) 22-component cage 1,...

Asymmetric synthesis of 3,3'-pyrrolidinyl-dispirooxindoles via a one-pot organocatalytic Mannich/deprotection/aza-Michael sequence.

Chemical communications (Cambridge, England)

Zhao K, Zhi Y, Li X, Puttreddy R, Rissanen K, Enders D.
PMID: 26725839
Chem Commun (Camb). 2016 Feb 07;52(11):2249-52. doi: 10.1039/c5cc10057g.

A highly stereoselective synthesis of functionalized 3,3'-pyrrolidinyl-dispirooxindole derivatives with three stereogenic centers, including two contiguous spiro-stereocenters, has been achieved through an organocatalytic Mannich/Boc-deprotection/aza-Michael sequence. Employing the commercially available (DHQD)2PHAL as the catalyst, the scalable reaction occurs with good yields...

Spontaneous Resolution of an Electron-Deficient Tetrahedral Fe4L4 cage.

Angewandte Chemie (International ed. in English)

Bonakdarzadeh P, Pan F, Kalenius E, Jurček O, Rissanen K.
PMID: 26457686
Angew Chem Int Ed Engl. 2015 Dec 01;54(49):14890-3. doi: 10.1002/anie.201507295. Epub 2015 Oct 12.

A highly electron-deficient C3-symmetric tris(bipyridyl) ligand was prepared in four steps and used for the coordination of Fe(OTf)2, thereby resulting in the homochiral assembly of a new family of robust tetrahedral M4L4 cages. This homochiral T-symmetric cage containing a...

Publisher's Note: Decay and Fission Hindrance of Two- and Four-Quasiparticle K Isomers in (254)Rf [Phys. Rev. Lett. 115, 132502 (2015)].

Physical review letters

David HM, Chen J, Seweryniak D, Kondev FG, Gates JM, Gregorich KE, Ahmad I, Albers M, Alcorta M, Back BB, Baartman B, Bertone PF, Bernstein LA, Campbell CM, Carpenter MP, Chiara CJ, Clark RM, Cromaz M, Doherty DT, Dracoulis GD, Esker NE, Fallon P, Gothe OR, Greene JP, Greenlees PT, Hartley DJ, Hauschild K, Hoffman CR, Hota SS, Janssens RV, Khoo TL, Konki J, Kwarsick JT, Lauritsen T, Macchiavelli AO, Mudder PR, Nair C, Qiu Y, Rissanen J, Rogers AM, Ruotsalainen P, Savard G, Stolze S, Wiens A, Zhu S.
PMID: 26550909
Phys Rev Lett. 2015 Oct 16;115(16):169902. doi: 10.1103/PhysRevLett.115.169902. Epub 2015 Oct 16.

No abstract available.

Self-assembly of a M4L6 complex with unexpected S4 symmetry.

Dalton transactions (Cambridge, England : 2003)

Giri C, Topić F, Mal P, Rissanen K.
PMID: 25335816
Dalton Trans. 2014 Dec 28;43(48):17889-92. doi: 10.1039/c4dt02754j. Epub 2014 Oct 22.

Using 1,4-diaminobenzene and 2-formylpyridine as simple building blocks results in a 1D ligand (rod, L2) to 2D (M4L4 grid, C1) to 3D (S4 symmetrical M4L6, C2) complexes upon sequential addition of Cu(I) and Fe(II) ions. The complex C2 can...

Enantiomerically pure trinuclear helicates via diastereoselective self-assembly and characterization of their redox chemistry.

Journal of the American Chemical Society

Gütz C, Hovorka R, Struch N, Bunzen J, Meyer-Eppler G, Qu ZW, Grimme S, Topić F, Rissanen K, Cetina M, Engeser M, Lützen A.
PMID: 25050629
J Am Chem Soc. 2014 Aug 20;136(33):11830-8. doi: 10.1021/ja506327c. Epub 2014 Aug 05.

A tris(bipyridine) ligand 1 with two BINOL (BINOL = 2,2'-dihydroxy-1,1'-binaphthyl) groups has been prepared in two enantiomerically pure forms. This ligand undergoes completely diastereoselective self-assembly into D2-symmeteric double-stranded trinuclear helicates upon coordination to copper(I) and silver(I) ions and to...

Total Absorption Spectroscopy Study of (92)Rb Decay: A Major Contributor to Reactor Antineutrino Spectrum Shape.

Physical review letters

Zakari-Issoufou AA, Fallot M, Porta A, Algora A, Tain JL, Valencia E, Rice S, Bui VM, Cormon S, Estienne M, Agramunt J, Äystö J, Bowry M, Briz JA, Caballero-Folch R, Cano-Ott D, Cucoanes A, Elomaa VV, Eronen T, Estévez E, Farrelly GF, Garcia AR, Gelletly W, Gomez-Hornillos MB, Gorlychev V, Hakala J, Jokinen A, Jordan MD, Kankainen A, Karvonen P, Kolhinen VS, Kondev FG, Martinez T, Mendoza E, Molina F, Moore I, Perez-Cerdán AB, Podolyák Z, Penttilä H, Regan PH, Reponen M, Rissanen J, Rubio B, Shiba T, Sonzogni AA, Weber C.
PMID: 26382674
Phys Rev Lett. 2015 Sep 04;115(10):102503. doi: 10.1103/PhysRevLett.115.102503. Epub 2015 Sep 04.

The antineutrino spectra measured in recent experiments at reactors are inconsistent with calculations based on the conversion of integral beta spectra recorded at the ILL reactor. (92)Rb makes the dominant contribution to the reactor antineutrino spectrum in the 5-8...

Anion-π Interactions with Fluoroarenes.

Chemical reviews

Giese M, Albrecht M, Rissanen K.
PMID: 26278927
Chem Rev. 2015 Aug 26;115(16):8867-95. doi: 10.1021/acs.chemrev.5b00156. Epub 2015 Aug 17.

No abstract available.

X-Ray crystallographic and computational study on uranyl-salophen complexes bearing nitro groups.

Dalton transactions (Cambridge, England : 2003)

Valkonen A, Lombardo GM, Rissanen K, Punzo F, Cametti M.
PMID: 28374879
Dalton Trans. 2017 Apr 19;46(16):5240-5249. doi: 10.1039/c6dt04773d.

In the solid state, salophen-UO

Biological and clinical significance of tryptophan-catabolizing enzymes in cutaneous T-cell lymphomas.

Oncoimmunology

Maliniemi P, Laukkanen K, Väkevä L, Dettmer K, Lipsanen T, Jeskanen L, Bessede A, Oefner PJ, Kadin ME, Ranki A.
PMID: 28405495
Oncoimmunology. 2017 Feb 10;6(3):e1273310. doi: 10.1080/2162402X.2016.1273310. eCollection 2017.

Indoleamine 2,3-deoxygenase 1 (IDO1) induces immune tolerance in the tumor microenvironment (TME) and is recognized as a potential therapeutic target. We studied the expression of both IDO1 and the related tryptophan 2,3-dioxygenase (TDO) in several different subtypes of cutaneous...

Showing 1 to 12 of 452 entries