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Long-lived non-equilibrium systems exhibit sustained activity and continuous dissipation without relaxing to equilibrium or collapsing into structural failure. While non-equilibrium dynamics are well studied, the conditions under which such dynamics can persist over extended time horizons remain insufficiently clarified. This work develops a minimal, process-level framework for understanding persistence in non-equilibrium systems. Rather than introducing new dynamical variables, equations, or predictive models, the analysis identifies a set of necessary constraints that any system must satisfy in order to remain a viable non-equilibrium steady state. These constraints are derived by exhaustively characterizing the generic failure space, which is shown to consist of two terminal modes: global equilibration and local freezing. Persistence is therefore framed not as an optimization problem, but as the avoidance of structurally unavoidable failure. Building on this foundation, the work further examines how non-equilibrium systems can be meaningfully compared with respect to long-term viability. It demonstrates that pointwise and ratio-based metrics are structurally ill-posed in far-from-equilibrium regimes due to irreversibility, historical accumulation, and projection effects. To address this limitation, a notion of structural equivalence is introduced, defined by shared capacity relations and failure modes rather than by metric similarity or mechanistic correspondence. Taken together, the two parts establish a strict logical ordering: persistence is a prerequisite for comparison, and structural equivalence is meaningful only within an admissible viability interval. The framework does not offer sufficient conditions, control strategies, or optimization targets. Instead, it delineates the boundary within which long-lived non-equilibrium operation is physically admissible and structurally comparable, independent of system domain, scale, or specific implementation.

本病例报告聚焦1例43岁宫颈癌放疗后并发放射性膀胱炎、阴道炎、输尿管梗阻（伴肾后性肾功能不全），同时合并重度贫血、肺转移、呼吸衰竭及血栓病史的复杂患者，突显多并发症交织下中西医结合护理的实践价值与挑战。报告系统阐述以多学科协作为基础，围绕泌尿系感染控制、梗阻解除、皮肤黏膜修复及心理干预四大核心问题展开的护理过程，涵盖评估（CTCAE 4.0放射性皮炎分级、实验室指标监测）、诊断、计划、实施与评价。通过西医重症监护、抗感染、液体管理与中医复方黄柏洗液湿敷、耳穴压丸等技术融合，患者10天后外阴破溃愈合、排尿通畅，肾功能恢复（肌酐降至89μmmol/l），未发生脓毒症等严重并发症。本案例表明，基于精准评估的个体化中西医结合护理模式能有效优化宫颈癌放疗后多重并发症患者的结局，为同类病例的综合管理提供可操作的实践经验。

淮河流域作为中国南北方的地理过渡带，其独特的自然地理条件深刻影响了区域内的人文互动，并在此基础上形成了独具特色的淮河文化，展现出显著的南北融合特征。本文旨在探讨淮河文化南北融合的自然地理根源，分析在自然地理驱动下的人口迁徙、经济往来、民俗与制度等多种人文互动形式如何促进文化融合，并梳理淮河文化南北融合的演进历程，从先秦的萌芽到明清以来的成熟与转型，揭示其深层机制与当代价值。研究强调淮河流域在中华文明形成和发展中的重要作用，并为当前区域文化遗产保护与可持续发展提供借鉴。

运河廊道作为连接不同地理区域与文化单元的线性空间，是文化交流融合的核心载体。本文聚焦长江与淮河间运河廊道，探究其文化交融的历史脉络与空间机制。首先界定概念并基于扩散理论、文化适应等多学科视角构建理论基础，继而梳理江淮地域文化特征，揭示运河廊道的文化枢纽作用。重点阐述史前至近现代，廊道在经济、人口、文化艺术、建筑等领域的深度交融历程，系统分析交通人流、经贸技术、政治军事、生态适应、文化认同等核心交融机制，并从核心-边缘、节点-网络、缓冲过渡区等空间维度深入解析，辅以里运河段实证。研究旨在为运河遗产保护活化及区域可持续发展提供理论与实践支撑。

There is a clear indication that dark matter in the Milky Way absorbs a tiny amount of light in the visible parts of the spectrum, (Baruch 2025a, and 2025b) . In Baruch (2025c) it is conjectured that this is caused by dark matter forming binary pairs which are destroyed (ionised) by the momentum of photons in the visible parts of the spectrum. This paper examines whether the dark matter binaries will also radiate photons. Can a binary form of dark matter with two spin half fermions produce spin flip radiation in the same way that hydrogen does with the 21cm line? It is shown that any such spin flip radiation would be very faint due to the excessively long half life of the suggested binary form of dark matter.