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Behavioral Cetology in the 19th Century: Thomas Beale, Henry Cheever, Thomas Southwell and Their Role in Awakening a Cetacean Protection Consciousness.
J Hist Behav Sci
January 2025
Department of Psychology, Oklahoma State University, Stillwater, Oklahoma, USA.
Although naturalists have devoted attention to cetaceans since Antiquity, it was only in the 19th century that cetology underwent a true explosion. Three key cetological works of this period are The Natural History of the Sperm Whale (1839) by Thomas Beale, The Whaleman's Adventures in the Southern Ocean (1850) by Henry Cheever and The Seals and Whales of the British Seas (1881) by Thomas Southwell. Importantly, these three works did not only represent fundamental compendia of scientific knowledge of cetaceans, but also had a crucial role in awakening a cetacean protection consciousness.
View Article and Find Full Text PDFFluorescent antennas (FAs) exhibit considerable promise in optical wireless communication (OWC), primarily due to their advantages over conventional optical systems in terms of optical gain and field of view (FoV). This paper presents a COMSOL-based model designed to optimize external light-concentrating structures for FAs, with its accuracy validated through both qualitative and quantitative comparisons. Leveraging refractive index modulation and the conservation of optical étendue, two distinct light-concentrating structures are developed.
View Article and Find Full Text PDFHealthcare professionals' attitudes to animal assisted activity with dogs in paediatric care.
Complement Ther Clin Pract
January 2025
Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden.
Background: Hospitalization for children often involves stress induced by fear and pain. Complementary therapies, such as Animal Assisted Activities (AAA) with dogs, can alleviate the hospital experience.
Purpose: The first aim of this study was to initiate the development of an instrument that measures healthcare professionals' attitudes toward complementary therapy, specifically dogs in AAA.
Biomechanics of the bobsleigh push phase.
J Sports Sci
January 2025
Institute of Biomechanics and Orthopaedics, German Sport University Cologne, Cologne, Germany.
The purpose of this work was to provide a fundamental, in-depth analysis of kinematics and kinetics of the bobsleigh push phase to establish a basis for performance analysis and enhancement. Fifteen elite male athletes performed maximal effort push starts, while ground reaction forces (GRF) and 3D marker trajectories were simultaneously recorded for ground contacts of different sub-sections of the push phase (start acceleration phase: first and second ground contact after the initial push-off from the start block, acceleration phase: 10 m and high-velocity phase: 30 m). To obtain a comprehensive view of the push phase, whole-body kinematics as well as joint kinetics were analysed and compared across the push phase.
View Article and Find Full Text PDFDiagnosis of rare signet-ring cell carcinoma of bile duct by endoscopic ultrasonography combined with a peroral direct cholangioscopy biopsy.
Rev Esp Enferm Dig
January 2025
Biliopancreatic Endoscopic Surgery, The Second Hospital of Hebei Medical University, .
Biliary signet-ring cell carcinoma is a rare malignant tumor of the biliary tract. signet-ring cell carcinoma often occurs in the gastrointestinal tract. In this case, we can intuitively see the location, shape and scope of the tumor through endoscopic ultrasonography (EUS) combined with a peroral direct choledochoscope.
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