Results 71 to 80 of about 15,487 (215)

Polymorphism and Structural Variety in Sn(II) Carboxylate Coordination Polymers Revealed from Structure Solution of Microcrystals

open access: yesSmall Methods, Volume 9, Issue 2, February 20, 2025.
A set of coordination polymers constructed from Sn(II) and polycarboxylate ligands crystallize under hydrothermal conditions as microcrystalline powders. Structure solution using either synchrotron X‐ray diffraction or 3D‐electron diffraction reveals complex structural chemistry and polymorphism in this family of materials, in part due to the ...
Avneet K. Ramana   +3 more
wiley   +1 more source

Valuation of Lithuanian Cities’ Smartness

open access: yesEconomics and Culture, 2020
Research purpose. To assess the level of smartness of Lithuanian cities. The article systematizes the theoretical background of a smart city and its criteria, develops the methodology for measuring the level of smart cities and assesses the level of ...
Jurevičienė Daiva   +1 more
doaj   +1 more source

Pregnancy and perinatal outcomes in women with recurrent pregnancy loss—A case–control study

open access: yesActa Obstetricia et Gynecologica Scandinavica, Volume 104, Issue 2, Page 368-379, February 2025.
History of recurrent pregnancy loss is associated with greater risks for hypertensive pregnancy disorders, placental problems, and preterm birth in the subsequent pregnancy. These pregnancies require careful follow‐up and support. Abstract Introduction Recurrent pregnancy loss (RPL), defined as two or more pregnancy losses, might be associated with ...
Hanna Hautamäki   +4 more
wiley   +1 more source

Motivation to Innovate as a Key Factor in Innovation Development Process

open access: yesEconomics and Culture, 2020
Research purpose. The purpose of this study is to analyse the influence of industrial enterprises’ employees’ motivation to innovate on the results of innovation process and the quality of innovative products market performance.
Svirina Anna, Polosukhina Ekaterina
doaj   +1 more source

Self‐aggregation of zinc bacteriochlorophyll‐d analogs with an acylhydrazone moiety as the 13‐keto‐carbonyl alternative

open access: yesPhotochemistry and Photobiology, Volume 101, Issue 1, Page 63-69, January/February 2025.
Zinc bacteriochlorophyll‐d analogs possessing an acylhydrazone moiety as the 13‐keto‐carbonyl alternative were prepared. Similar to self‐aggregation in chlorosomes, synthetic models with R=(CH2)1~6H self‐aggregated in an aqueous Triton X‐100 solution to give red‐shifted and broadened visible absorption bands with intense CD bands.
Satoru Fujii, Hitoshi Tamiaki
wiley   +1 more source

Management Control Systems and Innovation Process Efficiency. A Conceptual Model

open access: yesFolia Oeconomica Stetinensia, 2019
Research background: There seem to be a research gap concerning the relation between management control and innovation. Previous research in the field has generated inconclusive findings.
Szutowski Dawid
doaj   +1 more source

Water Soluble Rare‐Earth(III) based Coordination Polymers with Luminescence Versatility in Various Media: Reaching the Sky of Quantum Efficiency

open access: yesAdvanced Optical Materials, Volume 12, Issue 36, December 20, 2024.
The preparation and detailed characterization of four rare‐earth(III) based coordination polymers (CPs) showing high photoluminescence quantum yields in solid state is reported. These compounds present good water solubility that renders brightly emitting solutions and good dispersibility into thin‐films.
Laura Razquin‐Bobillo   +4 more
wiley   +1 more source

Discovering Sources and Approaches in Financing Hackathons

open access: yesFinancial Internet Quarterly
This study explores the diverse sources and approaches to financing hackathons, aiming to compare financing models for hackathons, emphasizing the influence of event type on various strategies.
Ryś Maciej
doaj   +1 more source

Barriers to Creating Innovation in the Polish Economy in the Years 2012–2016

open access: yesStudies in Logic, Grammar and Rhetoric, 2019
The purpose of the considerations is to present and systematise barriers to creating innovation in the Polish economy in 2012–2016. The desk research was based on the results of Community Innovation Surveys (CIS 2012 and CIS 2014), thematic studies of ...
Gardocka-Jałowiec Anna   +1 more
doaj   +1 more source

An Integrated Picture of Star Formation, Metallicity Evolution, and Galactic Stellar Mass Assembly

open access: yes, 2008
We present an integrated study of star formation and galactic stellar mass assembly from z=0.05-1.5 and galactic metallicity evolution from z=0.05-0.9 using a very large and highly spectroscopically complete sample selected by rest-frame NIR bolometric ...
A. J. Barger   +4 more
core   +1 more source

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