Results 71 to 80 of about 151,713 (305)

Frozen empires

open access: yesTempo e Argumento, 2019
Desde o início do século XX, Argentina, Grã-Bretanha e Chile fizeram reivindicações de soberania sobrepostas, enquanto os Estados Unidos e a Rússia reservaram direitos para todo o continente.
Hermes Andrade Júnior
doaj   +1 more source

Unlocking the Potential of MXene‐Based Electrochemical Biosensors: A Review of Biofunctionalization Strategies and Biosensing Principles

open access: yesAdvanced Materials Technologies, EarlyView.
ABSTRACT Electrochemical biosensors enable the accurate and timely detection of clinical biomarkers, improving healthcare and precision medicine. MXene nanosheets, a class of 2D transition metal carbides, nitrides, and carbonitrides, are promising materials for developing next‐generation electrochemical biosensors due to their unique physicochemical ...
Muhsin Ali   +4 more
wiley   +1 more source

Geopolityczne znaczenie języka w ujęciu lingwistycznym i socjolingwistycznym [PDF]

open access: yesPrzegląd Geopolityczny
The article explains the differences between linguistic and sociolinguistic approaches to the relationship between language and geopolitics. The author argues for the unsuitability of the linguistic approach, which is related to the weaknesses of the ...
Roman SZUL
doaj  

People and Things on the Move: Tracking Paths With Social Network Analysis

open access: yesOpen Archaeology
The article presents an early test case of the author’s ongoing project, in which she utilises aspects of social network analysis (SNA) to study social and economic life under Ptolemaios II Philadelphos and Ptolemaios III Euergetes as reflected in the ...
Tambs Lena
doaj   +1 more source

'Thou glorious kingdome, thou chiefe of empires': Persia in seventeenth-century travel literature [PDF]

open access: yes, 2009
Bringing together a range of little-considered materials, this article assesses the portrayal of Persia in seventeenth-century travel literature and drama.
Houston, Chloe
core   +1 more source

Printed Organic Thermoelectric Generators: Progress and Challenges Towards Efficient Energy Harvesting

open access: yesAdvanced Materials Technologies, EarlyView.
Printed organic thermoelectric generators (OTEGs) enable flexible and sustainable energy harvesting from low‐grade heat. This Perspective critically assesses recent advances in printable thermoelectric materials, 2D and 3D device architectures, and current performance limits of printed OTEGs.
Vijitha Ignatious   +5 more
wiley   +1 more source

Reformas e revoltas – América Britânica e Portuguesa c. 1760-1790

open access: yesNuevo mundo - Mundos Nuevos, 2020
In the second half of the 18th century, to strengthen their sovereignty over the overseas territories, the principal European monarchies intervened in the colonial economy and administration.
Ronald Raminelli
doaj   +1 more source

Graphene‐Based Wearable Textile Triboelectric Nanogenerators and Biomechanical Sensors

open access: yesAdvanced Materials Technologies, EarlyView.
This study presents a wearable textile‐based triboelectric nanogenerator (T‐TENG) using sprayed graphene enhanced with a PVA adhesion layer. The graphene‐based electrode demonstrates high electrical conductivity and robustness to multiple bends. The fabricated T‐TENG provides stable and efficient output, with strong responsiveness to biomotion.
Hongyang Dang   +4 more
wiley   +1 more source

Incentives in Merchant Empires: Portuguese and Dutch Labor Compensation [PDF]

open access: yes
The different organizational structure of the Portuguese and Dutch merchant empires affected their ability to monitor workers. I test the theoretical implications of these differences using micro data of overseas workers' compensation from the sixteenth ...
Rei, Claudia
core   +1 more source

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

open access: yesAdvanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska   +2 more
wiley   +1 more source

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