Results 51 to 60 of about 162,668 (303)

High-Tech and Tactile: Cognitive Enrichment for Zoo-Housed Gorillas

Frontiers in Psychology, 2019
The field of environmental enrichment for zoo animals, particularly great apes, has been revived by technological advancements such as touchscreen interfaces and motion sensors.
Fay E. Clark, Fay E. Clark, Stuart I. Gray, Peter Bennett, Lucy J. Mason, Lucy J. Mason, Katy V. Burgess   +6 more
doaj   +1 more source

Correlated Charge Transport in an Organic Coulomb Glass

Advanced Materials, EarlyView.
ABSTRACT Advances in the development of organic field‐effect transistors (OFETs), electrically gated organic semiconductors (EGOFETs), and organic electrochemical transistors (OECTs) allow for the operation of these devices at very high charge‐carrier densities, where Coulomb interactions between carriers can be expected to become significant.
Magdalena Sophie Dörfler, Heinz Bässler, Harald Oberhofer, Anna Köhler   +3 more
wiley   +1 more source

Equity-premium puzzle: evidence from Brazilian data

Economia Aplicada, 2006
This paper uses 1992:1-2004:2 quarterly data and two different methods (approximation under lognormality and calibration) to evaluate the existence of an equity-premium puzzle in Brazil. In contrast with some previous works in the Brazilian literature, I
Rubens Penha Cysne
doaj   +1 more source

THE THERMODYNAMIC ARROW: PUZZLES AND PSEUDO-PUZZLES [PDF]

Time and Matter, 2006
For more than a century, physics has known of a puzzling conflict between the T-asymmetry of thermodynamic phenomena and the T-symmetry of the underlying microphysics on which these phenomena depend. This paper provides a guide to the current status of this puzzle, distinguishing the central issue from various issues with which it may be confused.
openaire   +2 more sources

When Poor Exciton Dissociation Limits Photocurrents in Organic Solar Cells: Why Low Offset Non‐Fullerene Acceptor Blends Can't Be Efficient

Advanced Materials, EarlyView.
The energetic offset between the donor and the acceptor components in organic photoactive layers is central to the tradeoff between photovoltage and photocurrent losses. This Perspective covers the most important issues surrounding this topic in non‐fullerene acceptor blends, from the difficulty of accurately determining state energies and driving ...
Dieter Neher, Manasi Pranav
wiley   +1 more source

Why Is the Mechanism Underlying the Chiral‐Induced Selectivity Effect Still Challenging?

Advanced Materials, EarlyView.
The chiral‐induced spin selectivity (CISS) effect is observed in many experimental configurations and for different materials. However, there are theoretical challenges in attempting to explain those results. A qualitative framework for explaining all the results is presented.
Ron Naaman, Yossi Paltiel
wiley   +1 more source

PENERAPAN NUMBERED HEAD TOGETHER BERBANTUAN MEDIA PUZZLE MENINGKATKAN HASIL BELAJAR TEMA CITA-CITAKU

Jurnal Educatio FKIP UNMA, 2020
Tujuan penelitian adalah untuk mendeskripsikan peningkatan keterampilan mengajar guru, mendeskripsikan peningkatan aktivitas belajar siswa, dan meningkatkan hasil belajar siswa kelas IV SD 5 Kedungsari dengan menerapkan model numbered head together ...
Nuning Hardi Yanti, Murtono, Much. Arsyad Fardani   +2 more
doaj   +1 more source

Ferromagnetism of Molecular Beam Epitaxy‐grown Ultra‐thin Cr2Ge2Te6 Films Down to the Monolayer Limit on Si Substrates

Advanced Materials, EarlyView.
Uniform monolayer Cr2Ge2Te6 films are achieved on Si substrates by molecular beam epitaxy. Intrinsic ferromagnetism with perpendicular magnetic anisotropy is established in the films by anomalous Hall effect and superconducting quantum interference device measurements, albeit with strong magnetic fluctuations characteristic of its 2D nature.
Pengfei Ji, Ruixuan Liu, Tianchen Zhu, Yang Chen, Yitian Tong, Jinxuan Liang, Yunhe Bai, Yunyi Zang, Zuhan Geng, Fangting Chen, Xiyu Hong, Jiatong Zhang, Luyi Yang, Qi‐Kun Xue, Ke He, Xiao Feng   +15 more
wiley   +1 more source

Development of puzzle-based learning to improve science learning outcomes of Indonesian geographic conditions for fifth-graders

Research and Development in Education
The lack of teacher ability to develop technology-based learning media and the lack of interaction in science and science learning activities result in less interesting learning and low student learning outcomes.
Dinda Tiara Arbai, Fitria Dwi Prasetyaningtyas   +1 more
doaj   +1 more source

Atomic‐Scale Detection of Néel Vector Switching in the Single‐Layer A‐Type Antiferromagnet Cr2S3‐2D

Advanced Materials, EarlyView.
Interfacial electron donation from graphene redistributes charge within single‐layer Cr2S3‐2D, preferentially accumulating at the lower Cr/S plane. The resulting minute magnetic imbalance lifts the equivalence of the two magnetic sublayers, enabling atomic‐resolution identification and field‐induced control of Néel‐vector states in a two‐dimensional A ...
Affan Safeer, Calisa Dias, Mahdi Ghorbani‐Asl, Abdallah Karaka, Pradyumna Bawankule, Weibin Li, Pierluigi Gargiani, Wouter Jolie, Arkady V. Krasheninnikov, Amilcar Bedoya‐Pinto, Thomas Michely, Jeison Fischer   +11 more
wiley   +1 more source