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Investigation of a Low-Speed Commutation Voltage Shock Problem in Three-Level ANPC Inverter with Hybrid Modulation Mode

Jian Yu, Renhui Shen, Le Zhou, Zelin Jia et al. • Machines (2023)

With the development of the photovoltaic industry; there will be an increasing demand for efficient, high-power density, and low-cost grid interface converters. Compared with two-level inverters, multilevel inverters have the following adva...

DOAJ Open Access (DOAJ) DOI: 10.3390/machines12010027

Determinants and socioeconomic inequalities in vitamin A-rich food consumption among children aged 6–23 months in Somalia: a multilevel analysis of the 2020 Somalia Health and Demographic Survey (SHDS)

Asma Mahamoud Abdillahi, Abdirizak Hassan Abokor, Omer Adam Farih, Mustafe Abdillahi Ali et al. • Frontiers in Nutrition (2026)

IntroductionVitamin A deficiency (VAD) remains a public health concern, particularly among children in resource-limited settings. This study aimed to evaluate the consumption of vitamin A-rich foods and associated socioeconomic inequalities...

DOAJ Open Access (DOAJ) DOI: 10.3389/fnut.2026.1809278

Spatio-temporal analysis of childhood vaccine uptake in Nigeria: a hierarchical Bayesian Zero-inflated Poisson approach

Temitayo Victor Lawal, Kehinde Adebola Atoloye, Ayo Stephen Adebowale, Adeniyi Francis Fagbamigbe • BMC Pediatrics (2023)

Abstract Background Globally, child mortality and morbidity remain a serious health challenge and infectious diseases are the leading causes. The use of count models together with spatial analysis of the number of doses of childhood vaccine...

DOAJ Open Access (DOAJ) DOI: 10.1186/s12887-023-04300-x

Democratic Innovations as a Tool to Restore Trust and Citizens’ Participation: A Comparison Between Stakeholder Groups in Italy

Addeo Felice, Fruncillo Domenico, Maddaloni Domenico • Politics in Central Europe (2025)

Recent changes in European countries have stimulated the search for multilevel policy interventions to restore citizens’ trust and engagement, focusing specifically on democratic innovations. Our paper presents the results of a survey condu...

DOAJ Open Access (DOAJ) DOI: 10.2478/pce-2025-0019

Multilevel Pulse Position Modulation With Level Trimming for Electromagnetic Nanocommunications in the Terahertz Band

Pankaj Singh, Sung-Yoon Jung • IEEE Access (2022)

Nanomachines are submicrometer-scale devices led by nanotechnology that can perform simple sensing, local actuation, limited data processing, storage, and communication tasks in the terahertz (THz) band, that is, from $\mathrm {0.1~}$ - $...

DOAJ Open Access (DOAJ) DOI: 10.1109/ACCESS.2022.3204044

The Impacts of the Multiscale Built Environment on Commuting Mode Choice: Spatial Heterogeneity, Moderating Effects, and Implications for Demand Estimation

Wenliang Jian, Xiaoxiao Liu, Hao Liu, Yongshi Hu et al. • Journal of Advanced Transportation (2023)

Promoting the usage of sustainable commuting modes requires in-depth understanding about residents’ commuting mode choice behavior. This study presents an empirical study to investigate the relationship between the built environment and com...

DOAJ Open Access (DOAJ) DOI: 10.1155/2023/9346631

A Space Vector Based Zero Common-Mode Voltage Modulation Method for a Modular Multilevel Converter

Guozheng Zhang, Shuo Wang, Chen Li, Xinmin Li et al. • World Electric Vehicle Journal (2023)

A modular multilevel converter (MMC) can generate different common-mode voltage (CMV) values due to the high-frequency changing of the switching state under various modulation strategies. The high-frequency dv/dt will produce common-mode cu...

DOAJ Open Access (DOAJ) DOI: 10.3390/wevj14020053

Intersecting inequalities in experiences of violence among Brazilian adults: a multilevel analysis of individual heterogeneity and discriminatory accuracy (MAIHDA) of the 2019 National Health Survey

Wilson H. Hammett, James Macinko • International Journal for Equity in Health (2026)

Abstract Introduction Existing quantitative studies of violence victimization in Brazil often examine individual demographic and socioeconomic risk factors, limiting insight into how identities can intersect to co-produce vulnerability or r...

DOAJ Open Access (DOAJ) DOI: 10.1186/s12939-026-02818-x

Context presentation and native conversation structure in large language model responses to escalating suicide risk: a controlled multimodel evaluation

Jueqiao Liu, Jueqiao Liu, Xiaoyi Chen, Jun Cai et al. • Frontiers in Psychiatry (2026)

BackgroundLarge language models are increasingly used for informal mental health support, yet their safety during escalating suicide-risk conversations may depend on how prior information is presented. Native multi-turn conversations and re...

DOAJ Open Access (DOAJ) DOI: 10.3389/fpsyt.2026.1962098