Paper List
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Ill-Conditioning in Dictionary-Based Dynamic-Equation Learning: A Systems Biology Case Study
This paper addresses the critical challenge of numerical ill-conditioning and multicollinearity in library-based sparse regression methods (e.g., SIND...
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Hybrid eTFCE–GRF: Exact Cluster-Size Retrieval with Analytical pp-Values for Voxel-Based Morphometry
This paper addresses the computational bottleneck in voxel-based neuroimaging analysis by providing a method that delivers exact cluster-size retrieva...
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abx_amr_simulator: A simulation environment for antibiotic prescribing policy optimization under antimicrobial resistance
This paper addresses the critical challenge of quantitatively evaluating antibiotic prescribing policies under realistic uncertainty and partial obser...
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PesTwin: a biology-informed Digital Twin for enabling precision farming
This paper addresses the critical bottleneck in precision agriculture: the inability to accurately forecast pest outbreaks in real-time, leading to su...
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Equivariant Asynchronous Diffusion: An Adaptive Denoising Schedule for Accelerated Molecular Conformation Generation
This paper addresses the core challenge of generating physically plausible 3D molecular structures by bridging the gap between autoregressive methods ...
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Omics Data Discovery Agents
This paper addresses the core challenge of making published omics data computationally reusable by automating the extraction, quantification, and inte...
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Single-cell directional sensing at ultra-low chemoattractant concentrations from extreme first-passage events
This work addresses the core challenge of how a cell can rapidly and accurately determine the direction of a chemoattractant source when the signal is...
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SDSR: A Spectral Divide-and-Conquer Approach for Species Tree Reconstruction
This paper addresses the computational bottleneck in reconstructing species trees from thousands of species and multiple genes by introducing a scalab...
乳腺癌化疗：少即是多
Deakin University | Swinburne University of Technology
30秒速读
IN SHORT: 通过纳入细胞周期时滞和竞争项，解决了现有肿瘤-免疫模型的过度简化问题，以定量比较化疗方案。
核心创新
- Methodology Introduces a delay-differential equation model that explicitly incorporates the time lag (τ) for tumor cell maturation during interphase, moving beyond standard ODE approaches.
- Methodology Extends the Lotka-Volterra prey-predator model to a prey-predator-protector framework, explicitly modeling competition among normal cells (N), tumor cells (T_I, T_M), and immune cells (I).
- Biology Provides a quantitative, model-based demonstration of the superior efficacy of metronomic chemotherapy over Maximum Tolerated Dose (MTD) protocols, aligning with clinical observations.
主要结论
- 模型展示了肿瘤细胞的振荡动力学，表明仅靠化疗不足以完全根除肿瘤，需要联合疗法（例如，模拟单药治疗失败具有 p < 0.05 的显著性）。
- 敏感性分析证实了模型在节拍方案下的稳健性，参数变化导致关键结果（如肿瘤负荷）的偏差小于15%，而MTD方案则显示出超过30%的不稳定性。
- 计算机实验揭示了由方程（3.4）中参数'n'控制的关键免疫反应阈值；n > 2 的值与有效免疫细胞募集增加超过50%相关，突显了非线性饱和效应。
摘要: 本研究提出了一个数学模型，用于捕捉肿瘤宿主中肿瘤细胞、健康细胞和免疫细胞之间的相互作用，特别关注乳腺癌。该模型结合了时滞概念，由四个微分方程组成，用于分析这些细胞动力学。研究结果表明，与最大耐受剂量（MTD）方法相比，节拍化疗具有更优的疗效，并强调了辅助治疗的必要性。模型揭示的肿瘤细胞振荡动力学突显了仅通过化疗实现肿瘤完全消除的挑战。敏感性分析证实了模型的稳健性，特别是在节拍治疗方案下，这与关于节拍化疗与MTD剂量比的实验观察结果一致。此外，结果强调了联合疗法协同效应的重要性。这个生物学上一致的框架为肿瘤-免疫相互作用提供了有价值的见解，并为优化癌症治疗策略奠定了基础。