Results 61 to 70 of about 159,449 (304)

Die Bedeutung neuer Medien im Leben männlicher und weiblicher Jugendlicher unterschiedlicher Schulformen: Wie können biografische und generationsspezifische Bildungspotentiale durch veränderte Lernarrangements in der Schule genutzt werden?

open access: yesMedienPädagogik: Zeitschrift für Theorie und Praxis der Medienbildung, 2002
Die vorliegende Vergleichsuntersuchung zwischen einer 9. Realschulklasse einer Mittelstadt in Baden-Württemberg und einer 9. Gymnasialklasse einer Mittelstadt in NRW versteht sich als explorative Vorstudie zu einer qualitativen Untersuchung zum ...
Sylvia Buchen, Ingeborg Philipper
doaj   +1 more source

Metabolic reprogramming identifies the most aggressive lesions at early phases of hepatic carcinogenesis [PDF]

open access: yes, 2016
Metabolic changes are associated with cancer, but whether they are just bystander effects of deregulated oncogenic signaling pathways or characterize early phases of tumorigenesis remains unclear.
Angioni, Maria Maddalena   +16 more
core   +3 more sources

A. Warburg

open access: yesRevue germanique internationale, 2018
La nécrologie d’Aby Warburg par Erwin Panofsky, membre éminent du « laboratoire », est parue dans le Hamburger Fremdenblatt du 28 octobre 1929. Elle fournit un aperçu incisif sur les lignes de force de l’œuvre savante et institutionnelle de Warburg, insistant sur la cohérence (« le point de fuite commun ») d’un style de pensée et d’une méthode de ...
openaire   +2 more sources

Copper Nanocrystallization in Anodic Oxide Films of Ti–Cu‐Based Bulk Metallic Glass and Its Effect on the Corrosion Resistance and Cytocompatibility

open access: yesAdvanced Engineering Materials, EarlyView.
Viktoriia Shtefan, Thorgund Nemec, Ute Hempel, Annett Gebert and coworkers demonstrate that anodic treatment of Ti–Cu‐based metallic glass in a nontoxic pyrophosphate electrolyte forms a protective bilayered Ti/Zr‐oxide film enriched with Cu nanocrystals.
Viktoriia Shtefan   +8 more
wiley   +1 more source

Cuerpos del conocimiento: armaduras del Renacimiento y la ingeniería de la mente

open access: yesEspacio, Tiempo y Forma. Serie VII, Historia del Arte, 2018
El presente ensayo traza el papel de las armaduras en las costumbres renacentistas del conocimiento. Desde la aparición de las armas de pólvora, las armaduras dejaron de ser apropiadas para el combate, si bien todavía constituyeron una pieza central de ...
Felix Jäger
doaj   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

Uncovering the dynamics and consequences of RNA isoform changes during neuronal differentiation

open access: yesMolecular Systems Biology
Static gene expression programs have been extensively characterized in stem cells and mature human cells. However, the dynamics of RNA isoform changes upon cell-state-transitions during cell differentiation, the determinants and functional consequences ...
Jelena Ulicevic   +10 more
doaj   +1 more source

Microprocessor Activity Controls Differential miRNA Biogenesis In Vivo

open access: yesCell Reports, 2014
In miRNA biogenesis, pri-miRNA transcripts are converted into pre-miRNA hairpins. The in vivo properties of this process remain enigmatic. Here, we determine in vivo transcriptome-wide pri-miRNA processing using next-generation sequencing of chromatin ...
Thomas Conrad   +3 more
doaj   +1 more source

Corrosion of bronzes by extended wetting with single versus mixed acidic pollutants [PDF]

open access: yes, 2014
The corrosion of bronzes was examined in the context of single-acid versus mixed-acid (as in urban acid rain) solutions. Two bi-component bronzes (copper with either 3% Sn or 7% Sn) that closely represent those of historic artifacts were immersed for ...
Adriaens, Mieke   +3 more
core   +2 more sources

Enhanced Li‐Ion Battery Performance with Hybrid MXene/GnR Electrodes: Heterojunctions and Engineered Architectures Supported by DFT Mechanistic Studies for Improved Rate Performance, Stability & Capacity

open access: yesAdvanced Functional Materials, EarlyView.
Lithium‐ion batteries (LIBs) remain central to energy storage but suffer from slow ion transport and degradation. Here, we present a binder‐free Ti3C2Tx MXene/GnR hybrid electrode with a porous 3D architecture formed via freeze casting. The structure enhances conductivity, ion transport, and stability, delivering 401 mAh/g, ∼97% efficiency, and 92 ...
Sara Mohseni Taromsari   +10 more
wiley   +1 more source

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