Results 21 to 30 of about 119,977 (170)

Copyright and Free Speech: The Human Rights Perspective

open access: yesBaltic Journal of Law & Politics, 2015
The relationship between copyright and freedom of expression has long been debated. Unlike the legal discourse in other jurisdictions, most notably the United States, where it is assumed that free speech and copyright do not collide, in Europe both ...
Krisjanis Buss
doaj   +1 more source

Survivorship and risk factors for revision of metal-on-metal hip resurfacing: a long-term follow-up study

open access: yesBone & Joint Open, 2023
Aims: Metal-on-metal hip resurfacing (MoM-HR) has seen decreased usage due to safety and longevity concerns. Joint registries have highlighted the risks in females, smaller hips, and hip dysplasia.
Hariharan Subbiah Ponniah   +3 more
doaj   +1 more source

Heterogenous Preparations of Solution-Processable Cobalt Phthalocyanines for Carbon Dioxide Reduction Electrocatalysis

open access: yesInorganics, 2023
The development and implementation of technology that can capture and transform carbon dioxide (CO2) is of ongoing interest. To that end, the integration of molecular electrocatalysts into devices is appealing because of the desirable features of ...
Elahe Tajbakhsh   +3 more
doaj   +1 more source

Review on recovery of valuable metals from complex copper–cobalt co-associated mines

open access: yes工程科学学报
Copper and cobalt, both strategic metals, play an indispensable role in many fields, such as national infrastructure and defense science and technology. Copper, one of the earliest nonferrous metals discovered, extracted, and applied by humans, teams up ...
Xiang LI   +5 more
doaj   +1 more source

A Multi-Indicator Fusion-Based Technique for the Identification of Acoustic Emission Signals During Rock Failure

open access: yesSensors
With the widespread application of acoustic emission (AE) technology in geotechnical engineering, effectively separating and identifying dense AE signals generated during rock fracturing remains a critical challenge.
Dexian Li   +6 more
doaj   +1 more source

Dermal and inhalable cobalt exposure-Uptake of cobalt for workers at Swedish hard metal plants.

open access: yesPLoS ONE, 2020
PurposeCobalt exposure is known to cause adverse effects on health. A major use of cobalt is in the manufacture of hard metal. Exposure can lead to asthma, hard metal lung disease, contact allergy and increased risk of cancer.
Fredrik Wahlqvist   +4 more
doaj   +1 more source

Syn-to post-orogenic mineralization in the Shuangkoushan Au–Ag–Pb deposit, North Qaidam: insights from H–O–S isotopes and U–Pb geochronology

open access: yesFrontiers in Earth Science
The Shuangkoushan Au–Ag–Pb deposits, hosted within meta-basaltic rocks of the Tanjianshan Group in the North Qaidam Orogenic Belt, northwest China, present significant insights into syn-to post-orogenic mineralization processes.
Junzhen Yu   +14 more
doaj   +1 more source

Research on key cobalt technologies based on patent analysis

open access: yesFrontiers in Energy Research, 2023
Based on global cobalt technology patents, this paper uses patent data mining and co-occurrence methods to identify technology application trends, key technology areas, key technology layouts, and technology roadmap.
Zhijing Hua   +4 more
doaj   +1 more source

Changes of global cobalt trade network and implications [PDF]

open access: yesZiyuan Kexue
[Objective] Examining the change of the global cobalt trade network is significant for understanding the global cobalt market and supply situation. [Methods] From the perspective of the product chain, this study constructed a global trade network for ...
ZHAO Xiquan, CHEN Wei
doaj   +1 more source

Exploring the Mechanisms behind the Anti-Tumoral Effects of Model C-Scorpionate Complexes

open access: yesMolecules, 2023
The growing worldwide cancer incidence, coupled to the increasing occurrence of multidrug cancer resistance, requires a continuous effort towards the identification of new leads for cancer management.
Pedro M. G. Silva   +6 more
doaj   +1 more source

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