13 research outputs found
Beyond Single Molecules:The Importance of Accurate Modeling for Molecular Junctions
No full textMolecular electronics is transforming our understanding of electronic devices by offering a promising alternative to traditional silicon-based technologies. It has the potential to overcome the size limitations of current approaches by utilizing the unique properties of molecules. Understanding these properties is crucial to design and develop molecular-scale components that can function reliably in electronic circuits. The most reliable use of molecules involves using ensembles of molecules. However, molecules are complex and can interact with one another, affecting the properties observed in measurements. By using computational meth- ods and incorporating molecules into an electrode–molecule–electrode junction while increasing the number of molecules in the junction, we can observe how molecular interactions influence molecular properties. However, understanding the effect of molecular interactions is only one part of the challenge. To achieve the goal of using molecules in electronics, the impact of electrode choice must also be considered. In molecular electronics, electrodes can be made from different materials, making the careful selection of electrodes in both experiments and computations crucial. Here, we show that when simulating molecules in junctions, intermolecular interactions and the choice of top electrodes significantly influence the observed molecular properties. These findings emphasize the need for accurate modeling of molecular junctions to effectively use computational methods for understanding molecular propertie
Intermolecular Interactions and Quantum Interference Effects in Molecular Junctions
No full textDestructive quantum interference (DQI) leads to a decrease in the conductance of certain well-documented molecules. Experimental observations have revealed both direct and indirect manifestations of DQI, although a comprehensive understanding of the underlying causes of these distinct outcomes remains elusive. In both cases, DQI lowers the conductance, but only the direct case exhibits a characteristic V-shaped dip in differential conductance. Currently, the direct signature has exclusively been observed in monolayers and gated single-molecule systems. In this study, we employ density functional theory to elucidate a plausible explanation for the absence of a direct DQI signature in single molecules. Specifically, we attribute the direct DQI signature to a resonance shift induced by intermolecular interactions, which are absent in the individual molecules. By illustrating the impact of these intermolecular interactions, we emphasize the need for explicit treatment of intermolecular interactions when simulating monolayers.</p
Controlling the dispersion of Co<sub>3</sub>O<sub>4</sub> nanoparticles inside mesoporous nanorattle catalysts
No full textHere we report a simple method to synthesize cobalt nanoparticles inside mesoporous nanorattle catalysts. In this method, zeolitic imidazolate framework ZIF-67 is used as structural template for the preparation of a mesoporous metal oxide shell as well as sacrificial precursor to form cobalt nanoparticles inside the shell. Furthermore, we demonstrate that the introduction of a carbonization step prior to the final calcination can decrease the required calcination temperature from 550 °C to 300 °C. This has a large effect on the dispersion and catalytic activity of Co3O4 for CO oxidation and decreases the light-of temperature (temperature at 50% conversion) from 160°C to 134°C. Exploiting metal-organic frameworks as both structural template and sacrificial precursor offers precise control of size, shape and structure and opens up new exiting opportunities for design of advanced nanostructured catalysts
Insulin Degludec in Clinical Practice: A Review of Japanese Real-World Data
No full textArticle full
text
The full text of this article can be found here.
Provide enhanced digital features for this article
If you are an author of this publication and would like to provide additional enhanced
digital features for your article then please contact [email protected].
The journal offers a range of additional features designed to increase
visibility and readership. All features will be thoroughly peer reviewed to ensure the content is of the
highest scientific standard and all features are marked as ‘peer reviewed’ to
ensure readers are aware that the content has been reviewed to the same level
as the articles they are being presented alongside. Moreover, all sponsorship
and disclosure information is included to provide complete transparency and
adherence to good publication practices. This ensures that however the content
is reached the reader has a full understanding of its origin. No fees are
charged for hosting additional open access content.
Other enhanced features include, but are
not limited to:
• Slide decks
• Videos and animations
• Audio abstracts
• Audio slides</p
Journalism and Media Coverage
No full textDenne rapport undersøger, hvordan Danmarks Radio (DR) og TV2 tilpasser deres nyhederfor at nå den unge målgruppe, og hvilke forudsætninger det skaber for den demokratiskeoffentlighed. Gennem to interviews med Lasse Kjær Christiansen, redaktionsleder på DR P3,og Marie-Louise Von Holstein, chefredaktør på TV 2 Echo, analyseres mediernes strategierfor at opnå indsigt i, hvordan DR og TV2 engagerer unge mediebrugere. Som supplement tilinformanternes besvarelse, foretages en indholdsanalyse af en TikTok-video fra TV2 Echo ogen YouTube-video fra DR P3 Essensen. Formålet er at undersøge, hvordan nyhedsindholdetkonkret formidles, uafhængigt af informanternes besvarelse. På baggrund af analyserneanvendes Jürgen Habermas teori om den demokratiske offentlighed til at vurdere, om detundersøgte medieindhold lever op til en række opstillede normative kriterier. Dette bruges tilat vurdere, om medierne klæder de unge godt nok på til at deltage i den demokratiskesamtale. I projektet vurderes desuden den journalistiske kvalitet på baggrund af materiale fraDanmarks Journalistforbund.Rapporten tager udgangspunkt i en antagelse af, at der i overgangen fra traditionelnyhedsformidling til en mere visuel og kortfattet formidling på sociale medier, opstårvæsentlige journalistiske kvalitetsudfordringer. Projektet konkluderer dog, at det er de socialemediers kuraterende magt, der udgør en større udfordring for den demokratiske samtale,snarere end det er de potentielle kvalitetsudfordringer, der opstår som følge af tilpasningen afnyhedsindholdet på de sociale medier
