Yi Ma
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Articles by Yi Ma
Computer Science > Machine Learning
Diffusion models trained on increasingly large datasets sampled from the same data distribution will converge to the same learned distribution. However, in practice, a model trained on finite data depends on the particular training dataset; this dependence is reflected in properties of the model's outputs, such as memorization and sample quality.
Computer Science > Machine Learning
Mixture-of-experts (MoE) transformers, the standard backbone for modern large-scale deep learning, employ conditional computation: only a sparse subset of model weights is used in each forward pass. In MoE transformers, this sparsity arises in the MoE operator, which generalizes the multi-layer perceptron in the classical transformer. In this work, we explore an alternative mechanism for conditional computation that analogously generalizes the attention operator.
Ultra-Strong, Ductile, and Corrosion-Resistant High Entropy Alloy With Multi-Scale Heterogeneous Microstructure
Conflicts of Interest The authors declare no conflicts of interest. Data Availability Statement The data that support the findings of this study are available from the corresponding author upon reasonable request. Supporting Information Filename Description adfm78589-sup-0001-SuppMat.docx9.2 MB Supporting File: adfm78589-sup-0001-SuppMat.docx.
A whole-genome resequencing dataset of Kecai yaks from China
Abstract Endemic to the northeastern edge of the Qinghai-Tibet Plateau, the Kecai yak, a geographically distinct local yak population, serves as a useful resource for exploring the molecular mechanisms underlying high-altitude adaptation. In this study, we described a whole-genome resequencing dataset for Kecai yaks.
Reply to ‘China’s National Parks Law offers a pathway to better biodiversity data’
We thank Yang et al. for their Correspondence1 (Yang, H., Liu, D., Liu, Y., Ma, Q. & Thompson, J. R. China’s National Parks Law offers a pathway to better biodiversity data. Nat. Rev. Biodivers. https://doi.org/10.1038/s44358-026-00196-4; 2026), which frames the new National Parks Law (NPL) as an institutional framework for addressing biodiversity data challenges outlined in our Comment (Li, C., Ma, Y., Jiang, Z., Wang, Z. & Hu, J. Data issues hinder further success in China’s biodiversity conservation.
Ultrasonic-Assisted Fabrication of SPA–SSPS Composite Particles: Role of Mass Ratio in Modulating Structural and Emulsifying Properties
1 Introduction Pickering emulsions formulated with biopolymer particles, particularly natural proteins, have emerged as significant research focus. In these emulsions, protein particles effectively adsorb at the oil–water interface, inhibiting the coalescence of oil droplets and thus enhancing the stability of the emulsion system. However, protein-stabilized emulsions are inherently sensitive to environmental stresses.
A randomized comparison of etoposide and cyclophosphamide for stem cell mobilization in newly diagnosed multiple myeloma
Abstract Successful autologous stem cell transplantation (ASCT) in newly diagnosed multiple myeloma (NDMM) patients relies on the efficient mobilization of hematopoietic stem cells following induction therapy. While the efficacy of etoposide for stem cell mobilization has been demonstrated in numerous studies, a randomized comparison of the efficacy of cyclophosphamide versus etoposide has previously been lacking.
From technostress creators to turnover intention: How knowledge collecting behavior buffers job burnout among Chinese university lecturers?
Advanced search Journal of Workplace Behavioral Health Latest Articles Submit an article Journal homepage Full Article Figures & data References Citations Metrics Reprints & Permissions Read this article /doi/full/10.1080/15555240.2026.2649297?needAccess=true Abstract Technostress has emerged as a significant factor affecting individuals’ psychological well-being and counterproductive work behaviors in educational contexts.
Malic enzyme 2 suppresses PINK1-Parkin-mediated mitophagy by stabilizing ATAD3A via competitive interaction with TRIM25
Abstract Malic enzyme 2 (ME2), a pivotal enzyme related to the tricarboxylic acid (TCA) cycle, has been implicated in multiple cancers due to its overexpression and metabolic role in regulating the NADP+/NADPH balance. Malic enzyme 2 has been reported to regulate mitochondrial biogenesis and fusion; however, whether malic enzyme 2 participates in mitophagy regulation has remained unclear. Here, we reported that malic enzyme 2 depletion enhances PINK1-Parkin-mediated mitophagy.
Près de 100 navires transitent par le détroit d'Ormuz : qui parvient à passer ?
Lire uniquement le texte pour utiliser moins de données Crédit photo, Getty Images Article Information Author, Kayleen Devlin, Tom Edgington, Yi Ma Role, BBC Verify il y a 13 minutes Temps de lecture: 6 min Un peu moins de 100 navires ont traversé le détroit d'Ormuz depuis le début du mois de mars, selon les données analysées par BBC Verify, malgré les attaques périodiques menées par les forces iraniennes contre le trafic maritime dans la région.
Perang AS-Israel vs Iran: Kapal mana saja yang masih bisa melewati Selat Hormuz?
Sumber gambar, Getty Images Informasi artikel Penulis, Kayleen Devlin, Tom Edgington, Yi Ma Peranan, BBC Verify 3 menit yang lalu Waktu membaca: 5 menit Sejak Amerika Serikat-Israel menyerang Iran pada 28 Februari lalu, tidak sampai 100 kapal melintasi Selat Hormuz, menurut data yang dianalisis BBC Verify. Padahal sebelum perang, sekitar 138 kapal melintasi selat itu setiap hari, berdasarkan data Joint Maritime Information Centre.
Chiến sự Iran: 99 tàu vượt eo biển Hormuz - ai có thể lọt qua?
Nguồn hình ảnh, Getty Images Tác giả, Kayleen Devlin, Tom Edgington, Yi Ma Vai trò, BBC Verify 2 phút trước Thời gian đọc: 7 phút Theo dữ liệu được BBC Verify phân tích, chỉ có chưa đến 100 tàu thuyền đi qua eo biển Hormuz kể từ đầu tháng Ba, bất chấp các cuộc tấn công định kỳ vào tàu thuyền trong khu vực của lực lượng Iran.
Quase 100 navios atravessaram o Estreito de Ormuz desde o início da guerra. Quem está conseguindo passar?
Crédito, Hindustan Times via Getty Images Article Information Author, Kayleen Devlin, Tom Edgington e Yi Ma Role, BBC Verify Há 4 minutos Tempo de leitura: 6 min Quase 100 navios passaram pelo Estreito de Ormuz desde o início de março, apesar dos ataques periódicos das forças iranianas contra embarcações na região, segundo análise da BBC Verify, o serviço de verificação de dados e imagens da BBC.
Casi 100 barcos han atravesado el estrecho de Ormuz desde que empezó la guerra en Irán: ¿quiénes están logrando pasar? Original
Fuente de la imagen, Getty Images Información del artículo Autor, Kayleen Devlin, Tom Edgington, Yi Ma Título del autor, BBC Verify 5 minutos Tiempo de lectura: 5 min Poco menos de 100 barcos han pasado por el estrecho de Ormuz desde principios de marzo, según datos analizados por BBC Verify, a pesar de los ataques periódicos de las fuerzas iraníes contra las embarcaciones en la zona.
Nearly 100 ships pass the Hormuz Strait - who is getting through?
[Getty Images] Just under 100 ships have passed through the Strait of Hormuz since the start of March, according to data analysed by BBC Verify, despite periodic attacks on shipping in the area by Iranian forces. While some energy and everyday goods are still moving through one of the world's busiest shipping lanes, daily traffic is down about 95% since the Iran war began on 28 February.
Inhibition of cGAS in dendritic cells suppresses maturation and prolongs allograft survival in mice - Genes & Immunity
Abstract Cyclic GMP-AMP synthase (cGAS) is critical for dendritic cell (DC) maturation. This study investigates how cGAS suppression in DCs influences graft immune tolerance. Bioinformatics analysis assessed cGAS involvement in transplant immunity. Immature DCs were transduced with an adenoviral vector to knockdown cGAS and divided into three groups: cGAS-shRNA-DCs, EGFP-DCs and PBS (control). These were administered intravenously before transplantation to establish a mouse model.
IASUNet: building extraction based on impoved attention Swin-UperNet - Scientific Reports
Abstract Detailed comprehension of the spatial configuration of structures is pivotal for safeguarding and enhancing the natural environment, maintaining urban safety, optimizing the utilization of construction resources, and urban planning.
A Streamlined Protocol for Developing a Clinicopathological Prediction Model for Patient Survival of Post‐Resection of Pancreatic Cancer
AIC Akaike information criterion AJCC American joint committee on cancer AUC area under curve CD cluster of differentiation CK Cytokeratin Cox PH regression Cox proportional hazard regression CV cross validation DCA decision curve analysis Dxy Somer's delta IQR inter-quantile range LC3B microtubule-associated protein 1 light chain 3 beta MHC major histocompatibility complex mIHC multiplex immunohistochemistry PAK P21-activated kinase PCA principal component analysis PDA pancreatic ductal...
Data issues hinder further success in China’s biodiversity conservation - Nature Reviews Biodiversity Original
Biodiversity surveys and monitoring programmes hold promise for guiding evidence-based conservation in China, but inconsistent survey methodologies, insufficient oversight and flawed data management undermine the reliability and utility of these datasets. China should draw on international best practices to improve data integration, verification, and management, to ultimately strengthen its conservation outcomes.
Fermented cotton stalks preserve colonic epithelial integrity in Hu sheep via the microbiota–metabolite–NF-κB/MLCK axis and mitigate the adverse effects of direct feeding
Abstract Background: This study aimed to compare three cotton-stalk processing strategies—grinding (FS), steam explosion (PH), and microbial fermentation (FJ)—and to clarify whether fermented cotton stalks preserve colonic epithelial integrity through a microbiota–metabolite–NF‑κB/MLCK axis in Hu sheep.
Study on spray combustion characteristics of liquid ammonia/dimethyl ether dual fuel based on different injection strategies
Citation: Fu J, He H, Yan F, Ma Y, Wang S (2025) Study on spray combustion characteristics of liquid ammonia/dimethyl ether dual fuel based on different injection strategies. PLoS One 20(9): e0332659. https://doi.org/10.1371/journal.pone.0332659 Editor: Krishnamoorthy Ramalingam, Universiti Sains Malaysia, MALAYSIA Received: July 19, 2025; Accepted: September 2, 2025; Published: September 22, 2025 Copyright: © 2025 Fu et al.
Acidentes de avião: está mais perigoso voar?
Nas redes sociais, usuários têm sugerido que os acidentes aéreos estão se tornando mais frequentes, após uma série de desastres de grande repercussão nos últimos meses. Em 29 de dezembro de 2024, 179 pessoas morreram após o avião da Jeju Air sofrer um acidente no pouso, na Coreia do Sul. Um mês depois, um helicóptero e um avião de passageiros da American Airlines colidiram perto de um aeroporto de Washington D.C., nos EUA, matando 67 pessoas.
Synergistic association of estradiol and body roundness index with accelerated biological aging in male individuals
CONFLICT OF INTEREST STATEMENT The authors declared no conflicts of interest. Supporting Information Filename Description oby24326-sup-0001-FigureS1.tifTIFF image, 378.5 KB Figure S1. Joint analyses showing the synergistic association of estradiol and BRI with male accelerated biological aging (sensitivity analysis in which SHBG was adjusted for). (A) Univariate model; (B) Multivariate model of the joint analyses.
The Receptor Kinases BAK1/SERK4 Regulate Ca2+ Channel-Mediated Cellular Homeostasis for Cell Death Containment
Main text (Current Biology , 3778–3790.e1–e8; November 18, 2019) In both the initial submission and first revision of this article, Guangyuan Xu, Ping He, and Libo Shan were correctly listed with a fourth affiliation: Molecular and Environmental Plant Sciences, Texas A&M University, College Station, TX 77843, USA.
YY1 enhances HIF-1α stability in tumor-associated macrophages to suppress anti-tumor immunity of prostate cancer in mice - Nature Communications
Abstract Immune checkpoint therapy for prostate cancer (PCa), a classic ‘immune-cold’ tumor characterized by an immunosuppressive tumor microenvironment, failed previously in clinical trials, but the underlying causes remain elusive.
A repressão do governo da China contra mulheres que escrevem literatura erótica gay
"Fui alertada a não falar sobre isso", escreveu uma mulher antes de contar sobre o dia em que ela diz ter sido presa por publicar literatura erótica gay. "Nunca vou esquecer.
A repressão do governo da China contra mulheres que escrevem literatura erótica gay
Pelo menos 30 mulheres foram presas em todo o país desde fevereiro, conforme relatou um dos advogados de defesa à BBC. Nos últimos anos, o "danmei", como é conhecido, conquistou um público extremamente fiel, especialmente entre jovens chinesas. "Fui alertada a não falar sobre isso", escreveu uma mulher antes de contar sobre o dia em que ela diz ter sido presa por publicar literatura erótica gay. "Nunca vou esquecer.
A repressão do governo da China contra mulheres que escrevem literatura erótica gay
Pelo menos 30 mulheres foram presas em todo o país desde fevereiro, conforme relatou um dos advogados de defesa à BBC. Nos últimos anos, o "danmei", como é conhecido, conquistou um público extremamente fiel, especialmente entre jovens chinesas. "Fui alertada a não falar sobre isso", escreveu uma mulher antes de contar sobre o dia em que ela diz ter sido presa por publicar literatura erótica gay. "Nunca vou esquecer.
China is cracking down on young women who write gay erotica
"I've been warned not to talk about it," the woman wrote, before revealing snippets of the day she says she was arrested for publishing gay erotica.
Unraveling human crowd dynamics through the foot tracking of pedestrians
Abstract Movement of pedestrian crowds is ubiquitous in human society. However, it is unclear what dynamical regimes pedestrian crowds can exhibit at different crowd densities, how pedestrians move in these different dynamical regimes, and in which dynamical regime the movement synchronization of pedestrians is most likely to occur. Here, we conducted a unidirectional crowd movement experiment, in which we tracked the movement of pedestrian crowds through foot tracking.
Synergistic Genetic and Chemical Engineering of Probiotics for Enhanced Intestinal Microbiota Regulation and Ulcerative Colitis Treatment
Conflict of Interest The authors declare no conflict of interest. Supporting Information Filename Description adma202417050-sup-0001-SuppMat.docx31.1 MB Supporting Information References 1, , Mayo Clin. Proc. 2019, 94, 155. 2, , , , , Lancet 2017, 389, 1756. 3, , Annu. Rev. Med. 2021, 72, 199. 4, , , , Adv. Mater. 2023, 2304963. 5, , , , , , , , , , , J. Crohns Colitis. 2024, 18, i195. 6, , , Nat. Rev. Gastroenterol. Hepatol. 2010, 7, 503. 7, , Trends Biochem. Sci. 2017, 42, 887.
Impact of Temperature on Electrostatic Precipitator Performance with Varying Electrode Configurations
1. Introduction Click to copy section linkSection link copied! The 20th century was marked by rapid global economic growth, accompanied by the rise of numerous environmental challenges. One of the significant concerns is the presence of particles in high-temperature gases, which has been demonstrated to induce complications in numerous industrial processes.
Push Forward Clinical Management of Hematological Toxicity due to Lenalidomide Overexposure: Model‐Informed Precision Dosing for Chinese Population With Renal Insufficiency
What is the current knowledge on the topic? ○ Lenalidomide, an immunomodulatory drug, is widely used to treat B-cell malignancies like multiple myeloma and non-Hodgkin lymphoma. Clinical studies have identified dose-dependent hematological toxicity linked to lenalidomide therapy.
New Frontiers in the Production of Functional Recombinant Proteins
All articles published by MDPI are made immediately available worldwide under an open access license. No special permission is required to reuse all or part of the article published by MDPI, including figures and tables. For articles published under an open access Creative Common CC BY license, any part of the article may be reused without permission provided that the original article is clearly cited. For more information, please refer to https://www.mdpi.com/openaccess.
1D Core-Shell Radial Heterojunction for High‐Performance and Self‐Powered Broadband Photodetector
Conflict of Interest The authors declare no conflict of interest. Supporting Information Filename Description lpor202402234-sup-0001-SuppMat.docx225.2 KB Supporting Information References 1, , , Nat. Rev. Mater. 2023, 8, 587. 2, , , , , , , , , , , , , , ACS Nano 2021, 15, 3309. 3, , , , , , Small Methods 2023, 8, 2300246. 4, , , , , , ACS Appl. Nano Mater 2024, 7, 3050. 5, , , , , , , Chem. Eng. J. 2020, 381, 122710. 6, , , , , , Adv. Mater. 2021, 33, 2003309. 7, , , , , , , , , , , , , , , , , , Nano Lett.
Por que a China está gastando bilhões para fazer as pessoas abrirem suas carteiras?
O governo chinês prometeu novos subsídios para creches, aumento de salários e das férias remuneradas numa tentativa de estimular a economia do país asiático, que está em desaceleração. Além disso, o governo criou um programa de descontos de US$ 41 bilhões (cerca de R$ 232,1 bilhões) para todo tipo de produtos, desde lavadoras de pratos e itens de decoração até veículos elétricos e smartwatches. Pequim está dando início a uma onda de gastos para incentivar os chineses a abrirem suas carteiras.
Por que a China está gastando bilhões para fazer as pessoas abrirem suas carteiras?
O governo chinês prometeu novos subsídios para creches, aumento de salários e das férias remuneradas numa tentativa de estimular a economia do país asiático, que está em desaceleração. Além disso, o governo criou um programa de descontos de US$ 41 bilhões (cerca de R$ 232,1 bilhões) para todo tipo de produtos, desde lavadoras de pratos e itens de decoração até veículos elétricos e smartwatches. Pequim está dando início a uma onda de gastos para incentivar os chineses a abrirem suas carteiras.
Can China's $40bn spending spree get people to open their wallets?
The Chinese government has promised new childcare subsidies, increased wages and better paid leave as part of its latest push to revive a slowing economy. That's on top of a $41bn discount programme that covers a wide range of things, from dishwashers and home decor to electric vehicles and smartwatches. It's a spending spree that will encourage Chinese people to crack open their wallets. Simply put, they are not spending enough. Advertisement Monday brought some positive news.
Controllable Hydrothermal Synthesis of 1D β-Ga2O3 for Solar-Blind Ultraviolet Photodetection
All articles published by MDPI are made immediately available worldwide under an open access license. No special permission is required to reuse all or part of the article published by MDPI, including figures and tables. For articles published under an open access Creative Common CC BY license, any part of the article may be reused without permission provided that the original article is clearly cited. For more information, please refer to https://www.mdpi.com/openaccess.
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