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561
New aspects in the diagnosis of takotsubo syndrome
Published 2025-08-01“…It is known that this condition predominantly affects postmenopausal women and is often triggered by physical or emotional stress. …”
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562
On the ambiguity of an ideal gas entropy concept
Published 2020-11-01“…Clausius, as a result of which the main requirements for entropy were established, the changes of which are observed in isothermal and adiabatic quasistatic processes, in particular, it was revealed that if in isothermal processes involving one in a perfect gas, the entropy ST is uniquely characterized by the value , regardless of whether the process is reversible or not, then when the adiabatic processes occur, the only requirement made of them is the condition of mutual destruction adiabats in this Carnot cycle. …”
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563
Tuning the hydrogenation of CO2 to lower olefins: Impact of Pt in K–doped Fe–Mn catalysts
Published 2025-08-01“…Fe-based catalysts are promising for the hydrogenation of CO2 to olefins, contributing to the mitigation of CO2 emissions. Low-pressure conditions (∼1 MPa) are preferred for the selective synthesis of lower olefin because these conditions suppress carbon chain growth and olefin re-absorption which leads to hydrogenation of olefins to paraffins. …”
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564
The Other Side of the Coin: Secondary Takotsubo Syndrome in Living Donor Liver Transplantation Reversul medaliei: sindrom Takotsubo secundar la donator înrudit pentru transplant he...
Published 2024-12-01“…Takotsubo syndrome is an acute reversible heart failure syndrome, and its secondary form occurs in patients already hospitalized for another medical, surgical, obstetric, or psychiatric condition. …”
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565
FORECASTING COHERENT VOLATILITY BREAKOUTS
Published 2017-10-01“…To test statistical significanceof its abilities we introduce several estimators of conditional and unconditional probabilities of reversals in observed and predicted dynamic components of volatility. …”
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566
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567
Iterative Fast Super-Twisting Flux Sliding Mode Observer for SPMSM with Tangent Quadrature Phase-Locked Loop
Published 2024-12-01“…Notably, the feedback matrix is redesigned to ensure the algorithm’s stability during speed reversal. Furthermore, an iterative calculation strategy is implemented under low-speed and light-load conditions, improving steady-state accuracy of estimated flux while avoiding increased computational burden at medium and high speeds. …”
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568
ROLE OF THE STRUCTURAL FACTOR IN THE DISTRIBUTION OF HIGH-RADON GROUNDWATER IN THE SOUTHWESTERN FLANK OF THE SOUTH BAIKAL RIFT BASIN
Published 2017-12-01Subjects: “…this article discusses the distribution patterns of high-radon groundwater at the southwestern shore of lake baikal. this region is a flank of the south baikal rift basin, characterized by high geodynamic activity and complex fault patterns, without any special geochemical conditions with regard to the content of uranium in the rocks. based on our observations and measurements, we consolidated the first massive database on radon volume activity (q) in a variety of local water sources. in the kultuk–vydrino area, the q values vary from zero to 81.1 bq/l, according to the analysis of the water samples from 93 springs, lakes, small streams, wells, and drilled holes. the highest concentrations of radon are discovered in the groundwater samples. such values are unevenly scattered across the study area. the chain of the maximum q values trends northwestwards along the lake baikal shore. this distribution pattern of radon, as well as the locations of individual water sources with q>15 bq/l are predetermined by the structural factor. the paragenetic analysis of faults and joints in the kultuk–vydrino area shows that this factor includes both the structure and stages in the development of the regional largest main sayan fault zone (the southwestern flank of the south baikal basin is a segment of this zone). the water sources with increased concentrations of radon are located in zones with a high density of the 2nd order faults, especially on sites wherein the nw-striking faults cross the transverse faults that have experienced repeated activation. temperature t is an additional factor influencing the degree of radioactivity in water. a relationship between t and q is reverse. water sources with q>15 bq/l associated with the 2nd order fault zones may occur also due to a locally lower temperature of groundwater. our study gives evidence that the southwestern coast of lake baikal is promising for finding high-radon water sources. using such water in balneo¬logy can become a valuable contribution to the tourism and recreational potential of the region. this prospect is especially important for the town of baikalsk that is now developing without its township-forming enterprise: the notorious pulp-and-paper mill has been completely shut down.…”
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569
MAIN PARAMETER ANALYSIS AND MECHANICAL BEHAVIOR OF ANTI-KAGOME LATTICE STRUCTURE
Published 2022-01-01“…The stress and strain theory is used to determine the key parameter of the reverse Kagome unit cell, which is the range of the inclination angle ω on the constraint condition of realizing the compression performance, shearing property and reaching the relative density and bearing capacity of the reverse Kagome. …”
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570
Newtonian and Non-Newtonian Blood Flow Simulation after Arterial Stenosis- Steady State and Pulsatile Approaches
Published 2004-07-01“…But, in non-Newtonian condition, these regions are limited to smaller areas near the stenosis. …”
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571
The impact of alcohol use on the outcomes of shoulder joint replacement in traumatic indications type of study: clinical study - comparison of functional outcomes of shoulder repla...
Published 2025-07-01“…Abstract Purpose Alcohol use disorder (AUD) is a medical condition characterized by an impaired ability to stop or control alcohol consumption despite adverse social, occupational, or health consequences. …”
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572
Soft Switched Flyback Converter Using Active Lossless Snubber
Published 2022-06-01“…Moreover, based on the soft-switching condition, diode reverse recovery problem is omitted and leads to reduction of switching losses and increased efficiency. …”
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573
Chaotic Behaviors and Coexisting Attractors in a New Nonlinear Dissipative Parametric Chemical Oscillator
Published 2022-01-01“…The Melnikov method is used to derive the condition of the appearance of horseshoe chaos in the cases ω=Ω and ω≠Ω. …”
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574
Effects of Persistent Atrial Fibrillation-Induced Electrical Remodeling on Atrial Electro-Mechanics - Insights from a 3D Model of the Human Atria.
Published 2015-01-01“…Simulations were carried out in 3 conditions for 4 states: (i) the control condition, representing the normal tissue (state 1) and the tissue 2-3 months after cardioversion (state 2) when the atrial tissue recovers its electrophysiological properties after completion of reverse electrophysiological remodelling; (ii) AFER-SR condition for AF-remodeled tissue with normal sinus rhythm (SR) (state 3); and (iii) AFER-AF condition for AF-remodeled tissue with re-entrant excitation waves (state 4). …”
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575
Serum HDL and their subfractions are impaired in multisystem inflammatory syndrome in children (MIS-C)
Published 2025-01-01“…Abstract Background Multisystem inflammatory syndrome in children (MIS-C) is a severe post-COVID condition due to a delayed hyperimmune response to SARS-CoV-2. …”
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576
Nonlinear Responses of a Rotor-Bearing-Seal System with Pedestal Looseness
Published 2021-01-01“…In this paper, a pedestal looseness fault model of a rotor-bearing-seal system is established. Under two working conditions of the same direction eccentricity (Working Condition 1) and reverse eccentricity (Working Condition 2), rotor orbits, vibration waveforms, spectrum cascade, and Poincaré maps are used to study the dynamic characteristics of the system when the sliding bearing support is loosened. …”
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577
A ZVT Auxiliary Circuit for High Step-Up Multi-Input Converters with Diode-Capacitor Multiplier
Published 2024-02-01“…Also, ZCS condition at turn-off is provided for all diodes to eliminate reverse recovery issue. …”
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578
Backward Integration of Nonlinear Shallow Water Model: Part 2: Vortex Merger
Published 2025-03-01“…Using the same initial condition in vortex merger, the backward integrations of height and vorticity from Sun’s shallow water model are the images of forward integrations. …”
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579
The Heterophil-to-Lymphocyte (H/L) Ratio Indicates Varying Physiological Characteristics in Nestlings Compared to Adults in a Long-Lived Seabird
Published 2025-01-01“…In adult Kittiwakes, however, better body condition correlated with lower H/L-ratio, the reverse of the pattern in young nestlings, and this variation was not linked to stress hormone (corticosterone) levels. …”
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580
Optimizing the Pairs-Trading Strategy Using Deep Reinforcement Learning with Trading and Stop-Loss Boundaries
Published 2019-01-01“…More specifically, if spreads hit trading thresholds and reverse to the mean, the agent receives a positive reward. …”
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