Computational benchmarks may identify a point winner even when the represented evidence does not justify releasing a stronger recommendation. C7 is an executable protocol for deciding whether a bounded algorithm recommendation is admissible on a declared finite computational-benchmark evidence surface. It evaluates two distinct components separately: empirical-resampling variability under a frozen perturbation contract and aggregation-design uncertainty over a prespecified admissible design set. Complete-portfolio support and aggregation-design behavior are then combined through the A1–A5 release grammar, with mandatory evidence or authority failures handled by fail-closed gates. In the FJSP demonstration, V1 retains MWKR as the point recommendation but no candidate achieves complete support, yielding A3 — Sampling-inconclusive. In V2, ECT is point-recommended and supported at both required endpoints; under the additive/common-calibration geometry, that support extends across the declared segment, yielding A1 — Supported and aggregation-design-stable. These conclusions remain limited to the declared finite surfaces, matched portfolios, represented conditions, replication structures, and admissible aggregation-design domains; they do not establish universal solver superiority, future-instance inference, deployment validity, or certification.
The vulnerability of rapidly growing cities to urban flooding reflects physical exposure, built form, and lived experience, but studies of these dimensions are typically conducted separately. This article presents the Data Integrated Tri-scale Workflow for Assessing Hazard Vulnerability (DITWAH), a rule-based method that links community-reported flood depth, zone-level statistical testing, and site-level urban morphology. A depth-based flood-severity index (FSI) is coded from post-event survey responses. Zone differences are tested with the chi-square test, the Kruskal-Wallis test with Dunn post hoc comparisons, and ordinal logistic regression. Morphology is summarized by built-up density, impervious surface ratio, road coverage, and open space ratio (OSR). A non-compensatory convergence rule then assigns High, Moderate, Low, or Divergent classes without expert weights. The method was demonstrated with 434 responses collected after the December 2025 cyclone in Chennai. FSI differed across zones (χ² = 153.90, df = 6, p < 0.001; Cramér’s V = 0.421; H = 62.32, p < 0.001). South Chennai reported knee-deep or deeper flooding: 48.5% of respondents in North Chennai, 8.0% in Central Chennai, and 3.0% in South Chennai. A 612 m² site window at Pattalam showed 72.22% impervious cover and 14.38% open space. The study classified North Chennai as High, Central Chennai as Moderate, and South Chennai as Low. The method suits data-limited cities that lack hydrodynamic calibration data. Its outputs are internally consistent but not yet externally validated.DITWAH links community flood-depth reports, zone statistics, and site morphology.A non-compensatory convergence rule assigns vulnerability classes without expert weights.Ordinal tests and explicit thresholds make every classification step reproducible.
Measurement of pressure transmission during cardiopulmonary resuscitation (CPR) is limited in living patients. During cardiac arrest care, the priority is immediate life-saving treatment, making additional invasive monitoring across multiple pressure compartments challenging. Published cadaveric CPR models vary in preparation methods, instrumentation, compression technique, and reporting detail, which limits reproducibility and comparison across studies.This article describes a fresh-frozen human cadaver method for studying thoracoabdominal pressure transmission during prone and supine mechanical CPR. The method used a within-specimen, counterbalanced crossover design in which two thawed fresh-frozen donors underwent standardized mechanical compressions in prone and supine positions. Synchronized pressure monitoring was used to capture intra-abdominal pressure, intrathoracic pressure, and arterial pressure during each compression cycle. A modified vascular declotting procedure was incorporated with the intention of reducing clot burden and supporting arterial pressure monitoring in thawed fresh-frozen donors.The methodology focuses on protocolization, invasive instrumentation, compression-trial structure, and reproducible documentation rather than comparative physiologic results. This protocol is intended to make a difficult mechanistic question measurable and support replication in future cadaveric CPR studies.A within-specimen prone-supine crossover design in human cadavers to study CPR pressure transmission.Synchronized abdominal, thoracic, and arterial pressure waveforms during compression cycles.
