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Mid-Infrared High-Power InGaAsSb/AlGaInAsSb Multiple-Quantum-Well Laser Diodes Around 2.9 μm.
Nanomaterials (Basel)
January 2025
Key Laboratory of Optoelectronic Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China.
Antimonide laser diodes, with their high performance above room temperature, exhibit significant potential for widespread applications in the mid-infrared spectral region. However, the laser's performance significantly degrades as the emission wavelength increases, primarily due to severe quantum-well hole leakage and significant non-radiative recombination. In this paper, we put up an active region with a high valence band offset and excellent crystalline quality with high luminescence to improve the laser's performance.
View Article and Find Full Text PDFTowards a sustainable set of European Core Health Indicators (ECHI).
J Health Monit
December 2024
National Institute for Public Health and the Environment (RIVM), Centre for Public Health, Healthcare and Society, Bilthoven, The Netherlands.
Background: The European Core Health Indicators (ECHI) are a set of 88 indicators that provide a compact overview of the extensive field of European public health and healthcare. The ECHI set adds value to European Union health information systems (HIS) for both Member States and EU-associated countries and the European Commission by providing a solid, comparable information base on national public health and healthcare trends and developments. The indicators allow for learning by comparison and the list supports the organisation of national health information systems.
View Article and Find Full Text PDFRaman spectroscopic fingerprinting for the identification and quantitative analysis of sports doping β - agonists based on gold nanopolyhedra.
Spectrochim Acta A Mol Biomol Spectrosc
January 2025
School of Science, Xihua University, Chengdu 610039 PR China. Electronic address:
Beta - stimulant, that is, β - adrenergic stimulant, also known as β - agonists, is bioactive catecholamine compounds naturally produced in animals' adrenal medulla glands that induce relaxation in asthmatic airway smooth muscles upon inhalation while also temporarily boosting athletic alertness and alleviating fatigue. However, their potential for dependency poses health risks including unnoticed exacerbation leading to severe illness or fatality prompting their inclusion on WADA's prohibited substances list. Surface - enhanced Raman spectroscopy (SERS) offers a rapid, sensitive, and label - free means for identifying characteristic peaks associated with β - agonist compounds.
View Article and Find Full Text PDFHuman Growth Hormone (GH) use by Athletes with Short Stature without GH Deficiency: Therapeutic Use Exemptions.
J Clin Endocrinol Metab
January 2025
Division of Diabetes and Endocrinology, Department of Pediatrics, University of Virginia, Charlottesville, VA.
Organized sports are governed by specific rules which aim to create or preserve fair play. An unfair advantage can be obtained by the use of specific substances or methods, also referred to as doping. The World Anti-Doping Agency (WADA) leads the international doping-free sport movement and annually publishes the List of Prohibited Substances and Methods (List), that is used by most sport federations and organizations around the world.
View Article and Find Full Text PDFGene Doping Detection From the Perspective of 3D Genome.
Drug Test Anal
January 2025
Research Institute for Doping Control, Shanghai University of Sport, Shanghai, China.
Since the early 20th century, the concept of doping was first introduced. To achieve better athletic performance, chemical substances were used. By the mid-20th century, it became gradually recognized that the illegal use of doping substances can seriously endangered athletes' health and compromised the fairness of sports competitions.
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