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Showing 20 of 4,355 academic articles

Empirical study on optimal reinsurance for crop insurance in China from an insurer's perspective

Xian-hua ZHOU, Yun-bo WANG, Hua-dong ZHANG, Ke WANG • Journal of Integrative Agriculture (2015)

This study investigates the optimal reinsurance for crop insurance in China in an insurer's perspective using the data from Inner Mongolia, Jilin, and Liaoning, China. On the basis of the loss ratio distributions modeled by AnHua Crop Risk ...

DOAJ Open Access (DOAJ) DOI: 10.1016/S2095-3119(14)60998-9

Long-Term Prognosis and Systemic Impact of Acromegaly: Analyses Utilizing Korean National Health Insurance Data

Sangmo Hong, Kyungdo Han, Cheol-Young Park • Endocrinology and Metabolism (2025)

Acromegaly is a rare endocrine disorder caused by excessive growth hormone secretion. Its low prevalence poses challenges in studying its long-term prognosis and systemic effects. To address this research gap, we conducted five studies usin...

DOAJ Open Access (DOAJ) DOI: 10.3803/EnM.2024.2285

Assessment of polygenic architecture and risk prediction based on common variants across fourteen cancers

Yan Dora Zhang, Amber N. Hurson, Haoyu Zhang, Parichoy Pal Choudhury et al. • Nature Communications (2020)

In cancer many gene variants may contribute to disease etiology, but the impact of a given gene variant may have varied effect size. Here, the authors analyse summary statistics of genome-wide association studies from fourteen cancers, and ...

DOAJ Open Access (DOAJ) DOI: 10.1038/s41467-020-16483-3

Modeling antiretroviral therapy adherence among people living with HIV: a cross-sectional study at Pantang Hospital, Ghana

Eric Nyarko, Irene A. Kretchy, Grace Lovia Allotey-Babington, Adwoa Oforiwaa Kwakye et al. • BMC Infectious Diseases (2026)

Abstract Background Poor adherence to antiretroviral therapy (ART) continues to undermine HIV treatment outcomes in sub-Saharan Africa, including Ghana. Objective This study aimed to quantify ART treatment adherence among people living with...

DOAJ Open Access (DOAJ) DOI: 10.1186/s12879-026-13836-z

Seemingly unrelated time series model for forecasting the peak and short-term electricity demand: Evidence from the Kalman filtered Monte Carlo method

Frank Kofi Owusu, Peter Amoako-Yirenkyi, Nana Kena Frempong, Akoto Yaw Omari-Sasu et al. • Heliyon (2023)

In this extant paper, a multivariate time series model using the seemingly unrelated times series equation (SUTSE) framework is proposed to forecast the peak and short-term electricity demand using time series data from February 2, 2014, to...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.heliyon.2023.e18821

Mathematical Modeling of Leptospirosis With Misdiagnosis

Japheth Musingila Mwongela, Caroline Kanyiri, Virginia Kitetu • Journal of Applied Mathematics (2026)

Leptospirosis is a widespread zoonotic bacterial disease that continues to pose a major public health challenge, particularly in developing countries where it causes substantial morbidity, mortality, and economic losses. A key problem in co...

DOAJ Open Access (DOAJ) DOI: 10.1155/jama/5513951

Metabolomic sweet spot clock predicts mortality and age-related diseases in the Canadian Longitudinal Study on Aging

Olga Vishnyakova, Joosung Min, Stephen Leach, Xiaowei Song et al. • Communications Medicine (2026)

Abstract Background Chronological age does not capture individual health or resilience. Advances in metabolomics have enabled development of molecular aging biomarkers that capture deviations between biological and chronological age, highli...

DOAJ Open Access (DOAJ) DOI: 10.1038/s43856-026-01375-2

Increased prevalence of loneliness and associated risk factors during the COVID-19 pandemic: findings from the Canadian Longitudinal Study on Aging (CLSA)

Susan A. Kirkland, Lauren E. Griffith, Urun Erbas Oz, Mary Thompson et al. • BMC Public Health (2023)

Abstract Background Older adults have been disproportionately impacted by COVID-19 and related preventative measures undertaken during the pandemic. Given clear evidence of the relationship between loneliness and health outcomes, it is impe...

DOAJ Open Access (DOAJ) DOI: 10.1186/s12889-023-15807-4

BUGSnet: an R package to facilitate the conduct and reporting of Bayesian network Meta-analyses

Audrey Béliveau, Devon J. Boyne, Justin Slater, Darren Brenner et al. • BMC Medical Research Methodology (2019)

Abstract Background Several reviews have noted shortcomings regarding the quality and reporting of network meta-analyses (NMAs). We suspect that this issue may be partially attributable to limitations in current NMA software which do not re...

DOAJ Open Access (DOAJ) DOI: 10.1186/s12874-019-0829-2

The beneficial effects of menopausal hormone therapy on renal survival in postmenopausal Korean women from a nationwide health survey

Shin Young Ahn, Yoon Jin Choi, Jieun Kim, Gang Jee Ko et al. • Scientific Reports (2021)

Abstract Several studies have demonstrated the nephroprotective effects of estrogen on renal damage. In light of the inconsistent results of previous findings, this study aims to evaluate the in-depth role of menopausal hormone therapy (MHT...

DOAJ Open Access (DOAJ) DOI: 10.1038/s41598-021-93847-9

Factors Affecting High Body Weight Variability

Kyungdo Han, Mee Kyoung Kim • Journal of Obesity & Metabolic Syndrome (2023)

Background : High body weight variability (BWV) is associated with many metabolic and cardiovascular diseases in adults. The study was designed to explore the baseline characteristics associated with high BWV. Methods : Using a nationally r...

DOAJ Open Access (DOAJ) DOI: 10.7570/jomes22063

Optimality conditions in multiobjective programming models with semi-infinite constraints using generalized (h,φ)-G-type I functions

Tareq Saeed, Vinay Singh, Savin Treanţă, Solomon Lalmalsawma • Results in Control and Optimization (2024)

In this paper, we introduce a new class of generalized (h,φ)-G-type I vector-valued functions, by combining the notions of (h,φ)-differentiable functions, G-invex functions, and type I functions. By using these new concepts, we formulate an...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.rico.2024.100395

Active querying approach to epidemic source detection on contact networks

Martin Sterchi, Lorenz Hilfiker, Rolf Grütter, Abraham Bernstein • Scientific Reports (2023)

Abstract The problem of identifying the source of an epidemic (also called patient zero) given a network of contacts and a set of infected individuals has attracted interest from a broad range of research communities. The successful and tim...

DOAJ Open Access (DOAJ) DOI: 10.1038/s41598-023-38282-8

Cost of inaction: a framework to estimate the economic cost of missing a patient with tuberculosis in the Indian context

Salmaan Keshavjee, Meredith B Brooks, Tom Nicholson, Viswanath Pingali • BMJ Open (2023)

Objectives To estimate the economic impact of failure to find and treat tuberculosis disease and prevent tuberculosis infection from progressing to active disease.Design Estimating the economic cost of not finding and treating a patient suf...

DOAJ Open Access (DOAJ) DOI: 10.1136/bmjopen-2022-070717

Response Surface Analysis: A Tutorial for Examining Linear and Curvilinear Effects

Antonio Carlos Rodrigues • RAC: Revista de Administração Contemporânea (2021)

Context: response surface analysis (RSA) is an approach that allows examining the extent to which combinations of two predictive variables relate to one outcome variable. The method is particularly interesting in cases where (in)congruence ...

DOAJ Open Access (DOAJ) DOI: 10.1590/1982-7849rac2021200293.en

Impossibility of universal work extraction from coherence: reconciling axiomatic and resource-theory approaches

Samuel Plesnik, Maria Violaris • New Journal of Physics (2024)

We compare how the impossibility of a universal work extractor from coherence arises from different approaches to quantum thermodynamics: an explicit protocol accounting for all relevant quantum resources, and axiomatic, information-theoret...

DOAJ Open Access (DOAJ) DOI: 10.1088/1367-2630/ad7f7c

Improvement of the external municipal financial control system in the context of public authority reform

S. M. Mironova, A. I. Mordvintsev, I. A. Eremenko • Правоприменение (2021)

The subject. The implementation of external municipal financial control cannot be called fully competent in Russia. Many practical problems are currently being addressed mainly through the transfer of powers to implement external financial ...

DOAJ Open Access (DOAJ) DOI: 10.52468/2542-1514.2021.5(1).96-107

Factors Affecting Quality of Accounting Information and its impact on local government fixed assets management's effectiveness: A study on Local Government of Indonesia

Fitra Dharma, Mega Metalia, Sari Indah Oktanti Sembiring • The Indonesian Journal of Accounting Research (2023)

Inseparable from managing regional fixed assets is the quality of information or data utilized by each unit. The quality of accounting information in government is heavily dependent on the leadership's commitment, the effectiveness of inter...

DOAJ Open Access (DOAJ) DOI: 10.33312/ijar.636