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Showing 1 to 12 of 43 entries
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Layer-by-layer electrostatic self-assembly of single-wall carbon nanotube polyelectrolytes.

Langmuir : the ACS journal of surfaces and colloids

Paloniemi H, Lukkarinen M, Aäritalo T, Areva S, Leiro J, Heinonen M, Haapakka K, Lukkari J.
PMID: 16378403
Langmuir. 2006 Jan 03;22(1):74-83. doi: 10.1021/la051736i.

We have used anionic and cationic single-wall carbon nanotube polyelectrolytes (SWNT-PEs), prepared by the noncovalent adsorption of ionic naphthalene or pyrene derivatives on nanotube sidewalls, for the layer-by-layer self-assembly to prepare multilayers from carbon nanotubes with polycations, such as...

Difference in Early Activation of NF-κB and MCP-1 in Acinar-Cell-Rich versus Fibrotic Human Pancreas Exposed to Surgical Trauma and Hypoxia.

Gastroenterology research and practice

Laaninen M, Bläuer M, Sand J, Nordback I, Laukkarinen J.
PMID: 25147563
Gastroenterol Res Pract. 2014;2014:460363. doi: 10.1155/2014/460363. Epub 2014 Jul 24.

Objectives. Previously we have shown that a pancreas with over 40% acinar cells is exposed to postoperative pancreatitis and other complications after pancreaticoduodenectomy (PD). Our aim was to analyze the expression of NF-κB and MCP-1 in the cut edge...

Compton-scattering study of the electronic properties of the transition-metal alloys FeAl, CoAl, and NiAl.

Physical review. B, Condensed matter

Blaas C, Hämäläinen K, Honkimäki V, Laukkanen J, Manninen S, McCarthy J, Redinger J, Suortti P.
PMID: 9982215
Phys Rev B Condens Matter. 1996 Mar 15;53(12):7714-7720. doi: 10.1103/physrevb.53.7714.

No abstract available.

Enhancement of second-harmonic generation from metal nanoparticles by passive elements.

Physical review letters

Czaplicki R, Husu H, Siikanen R, Mäkitalo J, Kauranen M, Laukkanen J, Lehtolahti J, Kuittinen M.
PMID: 23496711
Phys Rev Lett. 2013 Mar 01;110(9):093902. doi: 10.1103/PhysRevLett.110.093902. Epub 2013 Feb 28.

We prepare arrays of gold nanoparticles that include both noncentrosymmetric particles with a second-order nonlinear optical response (active particles) and centrosymmetric particles with no second-order response (passive particles). The plasmon resonances of the active and passive particles are at...

Ultrasmall microdisk and microring lasers based on InAs/InGaAs/GaAs quantum dots.

Nanoscale research letters

Maximov MV, Kryzhanovskaya NV, Nadtochiy AM, Moiseev EI, Shostak II, Bogdanov AA, Sadrieva ZF, Zhukov AE, Lipovskii AA, Karpov DV, Laukkanen J, Tommila J.
PMID: 26264786
Nanoscale Res Lett. 2014 Dec;9(1):3266. doi: 10.1186/1556-276X-9-657. Epub 2014 Dec 04.

UNLABELLED: Ultrasmall microring and microdisk lasers with an asymmetric air/GaAs/Al0.98Ga0.02As waveguide and an active region based on InAs/InGaAs/GaAs quantum dots emitting around 1.3 μm were fabricated and studied. The diameter D of the microrings and microdisks was either 2...

Correction: Random selection of factors preserves the correlation structure in a linear factor model to a high degree.

PloS one

Tanskanen AJ, Lukkarinen J, Vatanen K.
PMID: 30682175
PLoS One. 2019 Jan 25;14(1):e0211610. doi: 10.1371/journal.pone.0211610. eCollection 2019.

[This corrects the article DOI: 10.1371/journal.pone.0206551.].

The electrocardiographic 'triangular QRS-ST-T waveform' pattern: a marker of severe haemodynamic compromise in Takotsubo syndrome-a case report.

European heart journal. Case reports

Joki T, Nikus K, Laukkanen J.
PMID: 32617505
Eur Heart J Case Rep. 2020 Apr 25;4(3):1-6. doi: 10.1093/ehjcr/ytaa076. eCollection 2020 Jun.

BACKGROUND: Takotsubo cardiomyopathy is characterized by transient regional systolic dysfunction of the left ventricle, mimicking myocardial infarction. Although systolic left ventricular (LV) function normalizes in most cases, the outcome is not always favourable. Recently, a rare electrocardiogram (ECG) finding,...

Nighttime Appendectomy is Safe and has Similar Outcomes as Daytime Appendectomy: A Study of 1198 Appendectomies.

Scandinavian journal of surgery : SJS : official organ for the Finnish Surgical Society and the Scandinavian Surgical Society

Mönttinen T, Kangaspunta H, Laukkarinen J, Ukkonen M.
PMID: 32662330
Scand J Surg. 2021 Jun;110(2):227-232. doi: 10.1177/1457496920938605. Epub 2020 Jul 14.

INTRODUCTION: Although it is controversial whether appendectomy can be safely delayed, it is often unnecessary to postpone operation as a shorter delay may increase patient comfort, enables quicker recovery, and decreases costs. In this study, we sought to study...

Model for plastic deformation and fracture in planar disordered materials.

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics

Kaski K, Korteoja MJ, Lukkarinen A, Niskanen KJ.
PMID: 9962749
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics. 1995 Feb;51(2):1055-1058. doi: 10.1103/physreve.51.1055.

No abstract available.

Secondary prevention through comprehensive cardiovascular rehabilitation: From knowledge to implementation. 2020 update. A position paper from the Secondary Prevention and Rehabilitation Section of the European Association of Preventive Cardiology.

European journal of preventive cardiology

Ambrosetti M, Abreu A, Corrà U, Davos CH, Hansen D, Frederix I, Iliou MC, Pedretti RF, Schmid JP, Vigorito C, Voller H, Wilhelm M, Piepoli MF, Bjarnason-Wehrens B, Berger T, Cohen-Solal A, Cornelissen V, Dendale P, Doehner W, Gaita D, Gevaert AB, Kemps H, Kraenkel N, Laukkanen J, Mendes M, Niebauer J, Simonenko M, Zwisler AO.
PMID: 33611446
Eur J Prev Cardiol. 2020 Apr 07; doi: 10.1177/2047487320913379. Epub 2020 Apr 07.

Secondary prevention through comprehensive cardiac rehabilitation has been recognized as the most cost-effective intervention to ensure favourable outcomes across a wide spectrum of cardiovascular disease, reducing cardiovascular mortality, morbidity and disability, and to increase quality of life. The delivery...

Secondary prevention through comprehensive cardiovascular rehabilitation: From knowledge to implementation. 2020 update. A position paper from the Secondary Prevention and Rehabilitation Section of the European Association of Preventive Cardiology.

European journal of preventive cardiology

Ambrosetti M, Abreu A, Corrà U, Davos CH, Hansen D, Frederix I, Iliou MC, Pedretti RF, Schmid JP, Vigorito C, Voller H, Wilhelm M, Piepoli MF, Bjarnason-Wehrens B, Berger T, Cohen-Solal A, Cornelissen V, Dendale P, Doehner W, Gaita D, Gevaert AB, Kemps H, Kraenkel N, Laukkanen J, Mendes M, Niebauer J, Simonenko M, Zwisler AO.
PMID: 32223332
Eur J Prev Cardiol. 2020 Mar 30;2047487320913379. doi: 10.1177/2047487320913379. Epub 2020 Mar 30.

Secondary prevention through comprehensive cardiac rehabilitation has been recognized as the most cost-effective intervention to ensure favourable outcomes across a wide spectrum of cardiovascular disease, reducing cardiovascular mortality, morbidity and disability, and to increase quality of life. The delivery...

Random selection of factors preserves the correlation structure in a linear factor model to a high degree.

PloS one

Tanskanen AJ, Lukkarinen J, Vatanen K.
PMID: 30576318
PLoS One. 2018 Dec 21;13(12):e0206551. doi: 10.1371/journal.pone.0206551. eCollection 2018.

In a very high-dimensional vector space, two randomly-chosen vectors are almost orthogonal with high probability. Starting from this observation, we develop a statistical factor model, the random factor model, in which factors are chosen stochastically based on the random...

Showing 1 to 12 of 43 entries