The Froggatt-Nielsen (FN) mechanism, a prominent framework for explaining the observed flavor hierarchies, generically predicts the existence of an axion-like particle (ALP). This work examines a class of FN models based on ℤN discrete symmetries. We chart the allowed parameter space from a set of theoretical considerations and construct explicit renormalizable completions with minimal field content necessary to generate consistent textures. We then conduct comprehensive phenomenological analyses of two particularly elegant ℤ4 and ℤ8 models, highlighting the interplay between the effects of the ALP and the associated UV fields. We find that the FN scale can be as low as a few TeV.
This study examines the correlation between vitamin D levels and the severity of symptoms and quality of life in patients with benign prostatic hyperplasia (BPH). A total of 125 participants were categorized based on their prostate symptoms (mild, moderate, and severe) and vitamin D levels (deficient, insufficient, and optimal). Among those with mild symptoms (n=60), 37.93% were vitamin D deficient, 44.11% had insufficient vitamin D, and 54.83% had optimal levels. For moderate symptoms (n=55), 44.82% were deficient, 47.05% had insufficient, and 41.93% had optimal vitamin D levels. In severe cases (n=10), 17.04% were deficient, 8.82% had insufficient, and 3.22% had optimal vitamin D levels. Overall, 23.02% of participants were deficient, 27.02% had insufficient, and 49.6% had optimal vitamin D levels. Quality of life assessments revealed that 56.8% of participants reported a good quality of life, with 46.66% of these being vitamin D deficient, 57.57% insufficient, and 61.29% optimal. An indifferent quality of life was noted by 29.6% of participants, with 28.57% deficient, 27.27% insufficient, and 29.03% optimal vitamin D levels. A very poor quality of life was reported by 13.6% of participants, with 21.42% deficient, 15.15% insufficient, and 9.67% optimal vitamin D levels. These results indicate a potential association between higher vitamin D levels and improved prostate symptoms and quality of life in BPH patients. Further research is needed to establish causality and underlying mechanisms.
This article examines the appeal of Serbian nationalist ideology among the contemporary far right. We argue that the discursive othering of Bosnian Muslims as “Turks” as well as the Serbian grand narrative presenting the Bosnian War as a civilizational struggle between Christian Europe and Islam are uniquely resonant with the popular anti-Muslim and xenophobic discourses that are mobilizing right-wing extremists across the globe. Through an analysis of Serbian and far-right discourses, we demonstrate how the patterns of representation that were used to incite and justify the violence committed against Bosnian Muslims in the 1990s are being exported to remote corners of the world via the internet, where they merge with extraneous Islamophobic and racist ideologies to inspire a new generation of extremism, hatred, and violence.
We present single-stage optimization of islands in finite-β stellarator equilibria. Stellarator optimization is traditionally performed as a two-stage process; in the first stage, an optimal equilibrium is calculated that balances a set of competing constraints, and in the second stage, a set of coils is found that supports the said equilibrium. Stage one is generally performed using a representation for the equilibrium that assumes nestedness of flux surfaces, even though this is not warranted and occasionally undesired. The second stage optimization of coils is never perfect, and the mismatch leads to worse performing equilibria and further deteriorates if additional constraints, such as force minimization, coil torsion, or port access, are included. The higher fidelity of single-stage optimization is especially important for the optimization of islands as these are incredibly sensitive to changes in the field. In this paper, we demonstrate an optimization scheme capable of optimizing islands in finite β stellarator equilibria directly from coils. We furthermore develop and demonstrate a method to reduce the dimensionality of the single-stage optimization problem to that of the first stage in the two-stage approach.
The eternal 1-secure set, strategically protects graphical structures against attacks by placing sentinels within dominating sets. This study adapts this concept to real-world scenarios, like emergency response systems, by addressing challenges such as roadblocks and traffic congestion. We introduce the secure set and the eternal 1-secure set for fuzzy graphs based on edge membership levels J. Our analysis examines the relationship between the security number of a fuzzy graph G at level J and the domination number of its spanning subgraph at level J, demonstrating the potential of the eternal 1-secure set to enhance security measures in dynamic environments.
The roadmap is organized into several thematic sections, outlining current computing challenges, discussing the neuromorphic computing approach, analyzing mature and currently utilized technologies, providing an overview of emerging technologies, addressing material challenges, exploring novel computing concepts, and finally examining the maturity level of emerging technologies while determining the next essential steps for their advancement.
Improved molecular strong-field approximation theory is used to calculate the ionisation probability for the high-order above-threshold ionisation process induced by a few-cycle pulse with two carrier frequencies and one envelope. The asymmetry in the photoelectron momentum distribution is due to the ultrashort nature of the driving pulse and due to the relative orientation of the molecule with respect to the laser field. We introduce the generalised asymmetry parameter, which can be used to quantitatively measure the asymmetry between the photoelectron spectra along arbitrarily many selected directions. We investigate the difference between the asymmetry parameters calculated for atomic and molecular targets and show that the contributions to the asymmetry strongly depend on the type of the employed driving pulse. For the driving pulse with components that are linearly polarised with mutually orthogonal polarisations, we find that the main source of the asymmetry, especially in the high-energy part of the spectrum, is the ultrashort nature of the pulse. The relative orientation of the molecule with respect to the laser pulse only affects the low- and medium-energy parts of the spectrum. On the other hand, for the driving pulse with circularly polarised counterrotating components, the asymmetry introduced by molecular orientation is more pronounced. We also analyse the influence of the characteristics of molecular orbitals on the asymmetries using the examples of N2 and O2 molecules.
The aim of this study was to analyze various environmental factors influencing dyslexia to enhance our understanding of its risk factors, including the exposure of mothers of dyslexic children to potential negative developmental influences, perinatal and postnatal developmental characteristics of dyslexic children, genetic predisposition, socioeconomic status, and reading exposure in dyslexic children.Mothers of both dyslexic and non-dyslexic children took part in the study. The home literacy environment and the development of motor skills emerge as significant risk indicators for dyslexia. These findings hold profound implications for public health, emphasizing the critical importance of early childhood in providing children with the best possible educational opportunities.Key words:risk factors, dyslexia, child development, developmental influences, home literacy environment
Introduction. At the end of 2019 and the year before, there was a significant spread of measles in the World Health Organization (WHO) European Region.Gap statement. Among the countries that reported, a measles outbreak was Bosnia and Herzegovina (BiH).Aim. To describe the measles outbreak in BiH (an entity of the Federation of BiH, FBiH) in 2019.Methodology. Confirmatory IgM serology, measles nucleic acid detection by real-time RT-PCR and virus genotyping were done in the WHO-accredited laboratory for measles and rubella at the Clinical Center of the University of Sarajevo, Unit for Clinical Microbiology. Genotype was determined in all measles-RNA-positive cases by sequence analysis of the 450 nt fragment coding the C-terminal of measles virus nucleoprotein (N).Results. From 1 January to 31 December 2019, 1332 measles cases were reported, with the peak observed in April 2019 (413/1332, 31.01 %). Sarajevo Canton had the highest incidence, number of cases and percentage (206.4; 868/1332; 65.17 %) of measles cases. Around four-fifths of infected persons were unvaccinated (1086/1332, 81.53 %), while 4.58 % of the patients (61/1332) were immunized with one dose of measles-containing vaccine. The highest proportion of cases was found in children 0-6 years of age (738/1332, 55.41 %). Measles IgM positivity was determined in 75.88 % (346/456), while virus RNA was detected in 82.46 % (47/57) of the swab samples. All measles virus sequences belonged to genotype B3. SNP (position 216: C=>T) was detected in 1 of the 40 sequences obtained during this outbreak.Conclusion. Due to suboptimal immunization coverage, BiH belongs to countries at a high risk for measles outbreaks. Post-COVID-19 (coronavirus disease 2019) pandemic, targeted and tailored strategies are required to ensure routine vaccination demand and acceptance and broad partner and stakeholder group participation.
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