The amount of methane released to the atmosphere from the Nord Stream subsea pipeline leaks remains uncertain, as reflected in a wide range of estimates. A lack of information regarding the temporal variation in atmospheric emissions has made it challenging to reconcile pipeline volumetric (bottom-up) estimates with measurement-based (top-down) estimates. Here we simulate pipeline rupture emission rates and integrate these with methane dissolution and sea-surface outgassing estimates to model the evolution of atmospheric emissions from the leaks.
View Article and Find Full Text PDFBattery research often encounters the challenge of determining chemical information, such as composition and elemental oxidation states, of a layer buried within a cell stack in a non-destructive manner. Spectroscopic techniques based on X-ray emission or absorption are well-suited and commonly employed to reveal this information. However, the attenuation of X-rays as they travel through matter creates a challenge when trying to analyze layers buried at depths exceeding hundred micrometers from the sample's surface.
View Article and Find Full Text PDFA new species of Endoclita C. & R. Felder from Yen Lap district, Phu Tho province, Vietnam, E.
View Article and Find Full Text PDFPurpose: Arthrogryposis multiplex congenita (AMC) describes a heterogeneous group of rare congenital conditions. Health-related quality of life (HRQL) may be reduced in AMC due to broadly heterogeneous physical impairments and participation limitations. This study described HRQL in children and youth with AMC, compared HRQL between child self- and parent-proxy reports, and identified factors associated with better/worse HRQL.
View Article and Find Full Text PDFSuperconductivity and magnetism are often antagonistic in quantum matter, although their intertwining has long been considered in frustrated-lattice systems. Here we utilize scanning tunnelling microscopy and muon spin resonance to demonstrate time-reversal symmetry-breaking superconductivity in kagome metal Cs(V, Ta)Sb, where the Cooper pairing exhibits magnetism and is modulated by it. In the magnetic channel, we observe spontaneous internal magnetism in a fully gapped superconducting state.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
January 2024
The ability to efficiently control charge and spin in the cuprate high-temperature superconductors is crucial for fundamental research and underpins technological development. Here, we explore the tunability of magnetism, superconductivity, and crystal structure in the stripe phase of the cuprate La[Formula: see text]Ba[Formula: see text]CuO[Formula: see text], with [Formula: see text] = 0.115 and 0.
View Article and Find Full Text PDFNew Chinese Palpifer species are described from Yunnan and Fujian provinces. The male of Palpifer nielseni sp. n.
View Article and Find Full Text PDFGenomic sequencing (or morphology when indicated) and analysis of Hesperiidae that includes a number of primary type specimens reveals inconsistencies between the phylogenetic trees and the current classification that are resolved here. The following taxonomic changes are proposed. Oeonus Godman, 1900, stat.
View Article and Find Full Text PDFThe newly discovered kagome superconductors represent a promising platform for investigating the interplay between band topology, electronic order and lattice geometry. Despite extensive research efforts on this system, the nature of the superconducting ground state remains elusive. In particular, consensus on the electron pairing symmetry has not been achieved so far, in part owing to the lack of a momentum-resolved measurement of the superconducting gap structure.
View Article and Find Full Text PDFLarvae of an unidentified Lepidopteran hepialid were found boring stems and crown roots of blackberry (Rubus sp.) in Michoacán, Mexico. In this study, the morphological and molecular identification of larvae and adults of this insect was performed.
View Article and Find Full Text PDFBackground: During the last decades, the Open Access paradigm has become an important approach for publishing new scientific knowledge. From 2015 to 2020, the Trans-O-MIM research project was undertaken with the intention to identify and to explore solutions in transforming subscription-based journals into Open Access journals. Trans-O-MIM stands for strategies, models, and evaluation metrics for the goal-oriented, stepwise, sustainable, and fair transformation of established subscription-based scientific journals into Open-Access-based journals with as an example.
View Article and Find Full Text PDFUnconventional superconductors often feature competing orders, small superfluid density, and nodal electronic pairing. While unusual superconductivity has been proposed in the kagome metals AVSb, key spectroscopic evidence has remained elusive. Here we utilize pressure-tuned and ultra-low temperature muon spin spectroscopy to uncover the unconventional nature of superconductivity in RbVSb and KVSb.
View Article and Find Full Text PDFThe kagome lattice, which is the most prominent structural motif in quantum physics, benefits from inherent non-trivial geometry so that it can host diverse quantum phases, ranging from spin-liquid phases, to topological matter, to intertwined orders and, most rarely, to unconventional superconductivity. Recently, charge sensitive probes have indicated that the kagome superconductors AVSb (A = K, Rb, Cs) exhibit unconventional chiral charge order, which is analogous to the long-sought-after quantum order in the Haldane model or Varma model. However, direct evidence for the time-reversal symmetry breaking of the charge order remains elusive.
View Article and Find Full Text PDFThis article reviews a technique for arthroscopic fixation of an osteochondritis dissecans fragment with bone marrow aspirate concentrate augmentation. This technique involves safe harvest of bone marrow arthroscopically from the intercondylar notch, proper preparation and debridement of the parent bone, reduction of the progeny osteochondritis dissecans fragment, insertion of the bone marrow aspirate concentrate, and placement of multiple headless compression screws for fixation.
View Article and Find Full Text PDFStud Health Technol Inform
May 2021
Smart home systems create new opportunities for patient care. In this paper, a role model is created for the different groups of people involved in the care process of an occupant. Based on a systematic literature review seven roles were identified.
View Article and Find Full Text PDFThe genus Gazoryctra Hübner comprises 10 species in North America and four in northern Eurasia. The remaining diversity of North American Hepialidae is represented by four species of Sthenopis Packard, three species of Phymatopus Wallengren, and one species of Korscheltellus Börner (Nielsen et al. 2000; Grehan Knyazev 2019).
View Article and Find Full Text PDFThe genus Magnificus Yan, 2000 was originally established to include M. jiuzhiensis Yan, 2000 and M. zhiduoensis Yan, 2000.
View Article and Find Full Text PDFMental disorders are widespread among the world's population and place a high burden on both the people affected and the economy. In this area of health care and prevention major deficits can be found. Health-enabling technologies are being developed in order to provide support in the therapy and diagnostics of mental disorders.
View Article and Find Full Text PDFWe morphologically validate the genus Schausiana Viette, 1950 as a monophyletic group comprising five species-S. phalerus (Druce, 1887) comb. n.
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