Results 141 to 150 of about 15,810,178 (316)

Unbalanced groups in nonparametric survival tests [PDF]

It is fairly common to find medical examples with survival data with unequal sample size among the groups. There are several tests for those cases, but in practice, the use of one test instead of another is done without justifying the election. Sometimes,
Emilio Leton, Pilar Zuluaga
core  

Long‐Tea‐CLIP: An Expert‐Level Multimodal AI Framework for Fine‐Grained Green Tea Grading Across Five Sensory Dimensions

Advanced Science, EarlyView.
Long‐Tea‐CLIP (Contrastive Language‐Image Pre‐training) presents a multimodal AI framework that integrates visual, metabolomic, and sensory knowledge to grade green tea across appearance, soup color, aroma, taste, and infused leaf. By combining expert‐guided modeling with CLIP‐supervised learning, the system delivers fine‐grained quality evaluation and
Yanqun Xu, Zhengfang Xue, Qing Luo, Xu Liu, Yongquan Xu, Huang Jing, Xingcai Zhang, Xinyuan Zhang, Zhonghua Liu, Zisheng Luo   +9 more
wiley   +1 more source

Nonparametric Tests for Conditional Symmetry in Dynamic Models. [PDF]

This article proposes omnibus tests for conditional symmetry around a parametric function in a dynamic context. Conditional moments may not exist or may depend on the explanatory variables.
Delgado, Miguel A., Escanciano, Juan Carlos   +1 more
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Delivery of Pleckstrin‐Homology Domains Suppresses PI3K/Akt Signaling and Breast Cancer Metastasis

Advanced Science, EarlyView.
Current therapies curb tumor growth but not metastasis. Obscurin, a giant metastasis suppressor lost in breast cancer, restrains PI3K/Akt signaling but is impractical to restore. We deploy a mini‐obscurin, comprising the obscurin‐PH‐domain, which sequesters PI3K‐p85, potently suppressing invasion and metastasis.
Matthew Eason, Anindya Sen, Suhan Cho, Se Jong Lee, Keyata Thompson, Md Musavvir Mahmud, Poornima Dubey, Talia Guardia, Anthony Kim, Stuart Martin, Nathan Wright, Konstantinos Konstantopoulos, Aikaterini Kontrogianni‐Konstantopoulos   +12 more
wiley   +1 more source

Nonparametric Inference Based on Conditional Moment Inequalities [PDF]

This paper develops methods of inference for nonparametric and semiparametric parameters defined by conditional moment inequalities and/or equalities. The parameters need not be identified. Confidence sets and tests are introduced.
Donald W.K. Andrews, Xiaoxia Shi
core  

Ascites circRNA ASCOR Drives Platinum Resistance of High‐Grade Serous Ovarian Cancer by Facilitating RPA1 Nuclear Translocation

Advanced Science, EarlyView.
High‐grade serous ovarian carcinoma (HGSOC) is plagued by platinum resistance, with malignant ascites closely linked to poor outcomes. Here, we identify ASCOR, a circRNA enriched in ascites small extracellular vesicles (sEVs) from platinum‐resistant HGSOC patients, as a predictor of poor survival. ASCOR enhances platinum resistance in vitro and in vivo
Hanyuan Liu, Chenchen Zhu, Xuelin Yao, Yi Liu, Jing Zhu, Yuebo Li, Hanjie Xu, Cheng Peng, Ge Shan, Liang Chen, Ying Zhou   +10 more
wiley   +1 more source

Testing a parametric model against a nonparametric alternative with identification through instrumental variables [PDF]

This paper is concerned with inference about a function g that is identified by a conditional moment restriction involving instrumental variables. The paper presents a test of the hypothesis that g belongs to a finite-dimensional parametric family ...
Joel Horowitz
core  

Nonparametric Tests for Scale

The Annals of Mathematical Statistics, 1962
This paper is concerned with two sample rank tests for scale alternatives. The two samples are assumed to have continuous distribution functions with the difference in respective location parameters (medians) known. Various rank tests are considered and compared from the point of view of limiting Pitman efficiency for normal and nonnormal alternatives.
openaire   +3 more sources

Decoding the Cardiac Immune Microenvironment and Fibroblast Crosstalk in Radiotherapy Combined with Immunotherapy‐Induced Cardiac Fibrosis Based on Single‐Cell Transcriptomic Analysis

Advanced Science, EarlyView.
This study highlights that radioimmunotherapy drives crosstalk between fibroblasts and immune cells (especially macrophages) in the cardiac microenvironment, with IL‐6 as the key mediator, and tocilizumab alleviates cardiac fibrosis by targeting this interplay.
Yuxi Luo, Ying Yu, Zhimin Zeng, Yanxin Chen, Yali Yi, Zhiqin Lu, Fujuan Zeng, Peng Xu, Daya Luo, Leifeng Chen, Anwen Liu   +10 more
wiley   +1 more source

Nonparametric Tests for Serial Independence Based on Quadratic Forms [PDF]

Tests for serial independence and goodness-of-fit based on divergence notions between probability distributions, such as the Kullback-Leibler divergence or Hellinger distance, have recently received much interest in time series analysis.
Diks, C.G.H., Panchenko, V.
core