Random-matrix theory is used to study the mesoscopic fluctuations of the excitation gap in a metal grain or quantum dot induced by the proximity to a superconductor. We propose that the probability distribution of the gap is a universal function in rescaled units. Our analytical prediction for the gap distribution agrees well with exact diagonalization of a model Hamiltonian.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1103/PhysRevLett.86.874 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Health system financing fragmentation and maternal mortality transition in Mexico, 2000-2022.
Int J Equity Health
January 2025
Center for Health Systems Research, National Institute of Public Health, Cuernavaca, Morelos, Mexico.
Objective: To analyze the temporal and territorial relationship between health system financing fragmentation and maternal mortality in the last two decades in Mexico.
Methods: We conducted an ecological-longitudinal study of the maternal mortality ratio (MMR) in the 32 states of Mexico during the period 2000-2022. Annual MMRs were estimated at the national and state levels according to health insurance.
Effect of Mushroom, Ozone Gas, and Their Combination as Pretreatment Materials on the Bond Strength of Resin Composite to Dentin.
J Contemp Dent Pract
October 2024
Department of Dental Biomaterials, Faculty of Dental Medicine for Girls, Al-Azhar University, Cairo, Egypt, Orcid: https://orcid.org/0000-0002-3420-4146.
Aim: To assess the effect of mushrooms, ozone gas, and their combination as cavity disinfectants on the bonding strength of composite to dentin.
Materials And Methods: The study was conducted on 40 sound premolar teeth randomly divided into four groups. Group I: control group, Group II: mushroom group, Group III: Ozone group, and Group IV: mushroom + ozone gas (combination) group.
The effectiveness and choice of public pension scheme among Donglan county residents in China.
BMC Geriatr
January 2025
School of Political Science and Public Administration, Guangxi Minzu University, Nanning, China.
Background: China has made strides to achieve universal pension coverage through implementing the Public Pension Scheme for Urban and Rural Residents (PPSURR) program since 2014. This study explores the effectiveness of implementing the PPSURR in an impoverished county in China and investigates the determinants of residents' choice on the contribution level of the PPSURR.
Methodology: Binary logit regression models were conducted using datasets extracted from the Chinese General Social Survey in 2021 and datasets collected through surveying 321 residents in Donglan county, China.
Antiretroviral therapies and status of people living with HIV in Japan: An update from hospital survey and national database.
PLoS One
January 2025
Department of Infectious Diseases, NHO Nagoya Medical Center, Nagoya, Aichi, Japan.
No updated data on people living with HIV (PLHIV) in Japan have been available since 2015, leaving a critical gap in understanding the current status of care and treatment. Therefore, this study aimed to conduct a nationwide evaluation of the second and third goals of the "90-90-90 target" defined by UNAIDS between 2016 and 2020. The study utilized data from approximately 360 core hospitals through structured questionnaires and the National Database of Health Insurance Claims and Specific Health Checkups (NDB).
View Article and Find Full Text PDFCircular RNA Formation and Degradation Are Not Directed by Universal Pathways.
Int J Mol Sci
January 2025
Department of Rare Diseases, Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704 Poznan, Poland.
Circular RNAs (circRNAs) are a class of unique transcripts characterized by a covalently closed loop structure, which differentiates them from conventional linear RNAs. The formation of circRNAs occurs co-transcriptionally and post-transcriptionally through a distinct type of splicing known as back-splicing, which involves the formation of a head-to-tail splice junction between a 5' splice donor and an upstream 3' splice acceptor. This process, along with exon skipping, intron retention, cryptic splice site utilization, and lariat-driven intron processing, results in the generation of three main types of circRNAs (exonic, intronic, and exonic-intronic) and their isoforms.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!