• Book : ()
• Pub. Date : 2025
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We investigate the prospect of using ultracold alkali diatomic molecules to implement many-body quantum systems with SU(N) symmetry. Experimentally accessible molecules offer large N for both bosonic and fermionic systems, with both attractive and repulsive interactions. We carry out coupled-channel scattering calculations on pairs of NaK, NaRb, and NaCs molecules that are shielded from destructive collisions with static electric fields. We develop new methods to handle the very large basis sets required to include nuclear spins. We show that all the molecules studied have the properties required for SU(N) symmetry: the collisions are principally elastic, and the scattering lengths depend only weakly on the spin states of the molecules. The rates of spin-changing inelastic collisions are very low. We develop and test a semiclassical model of the spin dependence and find that it performs well. Published by the American Physical Society 2025

• Book : 7(1)
• Pub. Date : 2025
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• Pub. Date : 2025
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Ultraportable (UP) X-ray devices are ideal to use in community-based settings, particularly for chest X-ray (CXR) screening of tuberculosis (TB). Unfortunately, there is insufficient guidance on the radiation safety of these devices. This study aims to determine the radiation dose by UP X-ray devices to both the public and radiographers compared to international dose limits. Radiation dose measurements were performed with four UP X-ray devices that met international criteria, utilizing a clinically representative CXR set-up made with a thorax phantom. Scatter and leakage radiation dose were measured at various positions surrounding the phantom and X-ray tube, respectively. These measurements were used to calculate yearly radiation doses for different scenarios based on the median of all UP X-ray devices. From the yearly scatter doses, the minimum distances from the phantom needed to stay below the international public dose limit (1 mSv/year) were calculated. This distance was longest in the direction back towards the X-ray tube and shortest to the left/right sides of the phantom, e.g., 4.5 m and 2.5 m resp. when performing 50 exams/day, at 90 kV, 2.5 mAs and source skin distance (SSD) 1 m. Additional calculations including leakage radiation were conducted at a typical radiographer position (i.e., behind the X-ray tube), with a correction factor for wearing a lead apron. At 2 m behind the X-ray tube, a radiographer wearing a lead apron could perform 106 exams/day at 2.5 mAs and 29 exams/day at 10 mAs (90 kV, SSD 1 m), while keeping his/her radiation dose below the public dose limit (1 mSv/year) and well below the radiographer dose limit (20 mSv/year). In most CXR screening scenarios, the radiation dose of UP X-ray devices can be kept below 1 mSv/year by employing basic radiation safety rules on time, distance and shielding and using appropriate CXR exposure parameters.

• Book : 5(1)
• Pub. Date : 2025
• Page : pp.e0003986-e0003986
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Effective shelter location-allocation is critical in nuclear emergencies to ensure rapid, safe evacuation and resource access for affected populations. This study presents a multi-dimensional optimization model for shelter allocation within humanitarian logistics, balancing evacuation time, supply accessibility, and shelter capacity. Using Geographic Information Systems (GIS) and Multi-Criteria Decision Analysis (MCDA), the model optimizes trade-offs among competing objectives. The first objective minimizes evacuation time, the second ensures adequate supply access, and the third prevents shelter overcrowding. Validated through k-fold cross-validation, the model reveals spatial biases: evacuees often cluster in nearby shelters, leading to overcrowding in dense areas and underuse in others. This analysis suggests adding flexible shelters in high-density zones to enhance response efficiency. Overall, the research supports more balanced shelter allocations in nuclear emergencies, improving both immediate and long-term disaster response strategies for affected populations

• Book : 10(2)
• Pub. Date : 2025
• Page : pp.244-261
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During roof renovations, large quantities of waste BBRM (bitumen-based roofing materials) are generated, and the possibilities for recycling these materials have so far been very limited. In general, they can be crushed and mixed with asphalt to pave roads or can be burned for energy. While waste plastic materials are often recycled, the remelting process significantly degrades their durability and mechanical properties. Unlike conventional methods, our recycling process results in a material with properties that are in many ways superior to the original materials. It is durable, weather resistant, and has exceptionally high mechanical strength. This material can be used to produce various construction components, including replacing quickly degradable wooden parts in structures. The composite material demonstrates increased flexibility, enhanced tensile strength, and improved resistance to ultraviolet (UV) radiation and environmental degradation compared to standard bitumen. The process is simple and can be carried out directly at the renovation site using a portable device.

• Book : 15(3)
• Pub. Date : 2025
• Page : pp.1313-1313
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Abstract Context Phosphate homeostasis was compromised in tumor-induced osteomalacia (TIO) due to increased fibroblast growth factor 23 (FGF23) secretion. Nevertheless, the glucose metabolic profile in TIO patients has not been investigated. Objectives This work aimed to clarify the glucose metabolic profiles in TIO patients and explore their interaction with impaired phosphate homeostasis. Methods 20 TIO patients, 20 individuals with normal glucose tolerance, and 20 patients with type 2 diabetes mellitus (DM) were enrolled and underwent an oral glucose tolerance test (OGTT). Serum phosphate and FGF23 concentration were monitored during OGTT. Results In patients with TIO, 60% (12/20) exhibited impaired glucose tolerance (IGT) and 5% (1/20) had type 2 DM. Those with IGT or type 2 DM experienced more ambulatory difficulties (69.2% vs 42.9%), lower phosphate concentrations (0.43 ± 0.10 vs 0.53 ± 0.10, P = .042), and lower calcium concentrations (2.20 ± 0.08 vs 2.30 ± 0.40, P = .001) compared to TIO patients without these conditions. According to correlation analysis, serum phosphate levels were negatively correlated with plasma glucose levels at 60 minutes (P < .001), fasting plasma insulin levels (P < .05), and homeostasis model assessment for insulin resistance (P < .05). Those with high FGF23 levels had a higher glucose level at 60 minutes (10.5 [9.3, 12.3] vs 7.3 [6.4, 10.1], P = .048) than that of low group. After glucose loading, both FGF23 and phosphate levels exhibited a decreasing trend. Conclusion The development of diabetes in TIO patients may be predisposed by ambulatory issues, low phosphate, and elevated FGF23 levels. Dysglycemia might further aggravate hypophosphatemia.

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• Pub. Date : 2025
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• Pub. Date : 2025
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• Book : 9(1)
• Pub. Date : 2025
• Page : pp.166-166
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• Pub. Date : 2025
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