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Browse the tool catalog | Page 45

Search and filter the online tool directory by task, format, and category, then open detailed pages with clear inputs, examples, and execution context. Page 45.

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Text Processing

Unicode Bidi Paired Bracket Isolate Embedding CF Rule Explainer

Run the UAX #9 Unicode bidirectional algorithm rule by rule — X1–X8 embedding levels, isolating run sequences, BD16 paired brackets with N0, W/N/I resolution and L1/L2/L4 reordering — and inspect every intermediate state.

Science & Education

Time Dilation Calculator

Δt = γ·Δτ with γ = 1/√(1−v²/c²): both clock views for any speed below c, from the 0.6c hand-check case to muon lifetimes at 0.998c.

Science & Education

Heisenberg Uncertainty Principle Calculator

Δx·Δp ≥ ℏ/2: minimum Δp from Δx, minimum Δx from Δp, or a pair check with satisfaction ratio. Units m–pm and kg·m/s / g·cm/s / eV/c; optional mass derives Δv.

Math & Numbers

Transportation Problem Solver (Min-Cost Flow)

Balanced transportation problems as min-cost flow: successive shortest paths, MODI duals, reduced-cost optimality certificate, and full shipping plan.

Finance

Treasury Yield-Curve Nelson-Siegel / Svensson Bootstrap

Bootstrap the discount-factor and spot curve from treasury quotes, fit Nelson-Siegel or Svensson parametrically, and chart spot plus instantaneous forward curves with basis-point residuals.

Data Analysis

Train/Test Split with Stratification

Class-stratified train/validation/test split or stratified k-fold for CSV/JSON datasets — seeded, reproducible, with distribution reports, leakage checks, SMOTE preview and CSV export.

Health

Trophic Level Energy Transfer Efficiency (from Measured Levels)

Per-step and mean trophic transfer efficiencies from measured level values, with band grading, weakest transfer, and next-level projection.

Education

Transfection Efficiency Calculator (GFP Positive Rate)

GFP reporter transfection scoring: efficiency = GFP+ / total × 100 with a Wilson 95% CI in single mode and per-replicate mean ± SD in replicate mode. Interpretation bands from excellent (≥70%) to low (<10%) with optimization hints. Wilson 1927 / Newcombe 1998 / Kim & Eberwine 2010 derived. Educational use only.

Health

Ventilator Tidal Volume by PBW (ARDSNet)

Compute lung-protective VT from ARDSNet predicted body weight (PBW). Male 50+0.91×(cm−152.4); female 45.5+0.91×(cm−152.4). VT = mL/kg×PBW (4–8, default 6). Reports full range and plateau-pressure target. Derived from ARDSNet NEJM 2000, Brower 2004, StatPearls, LITFL. Not medical advice.

Health

TPN Macronutrient Calculator (Glucose/AA/Lipid)

Calculate glucose/amino-acid/lipid delivery (grams and kcal), total and non-protein calories, the non-protein kcal:g nitrogen ratio and per-kg values from a parenteral nutrition prescription. Energy densities: dextrose 3.4 kcal/g, AA 4.0 kcal/g, lipid 20% ≈ 2.0 kcal/mL. Targets (ASPEN/ESPEN): 20–30 kcal/kg/day, protein 1.0–1.5 g/kg/day. This is a prescription-analysis aid, not a compounding recipe. Derived from ASPEN 2016, ESPEN 2019, McClave 2016, Mirtallo 2004. Not medical advice.

Health

TPN Osmolality Estimator (Peripheral/Central)

Estimate the osmolality (mOsm/L) of a parenteral nutrition admixture to help choose peripheral vs central access. Sum-of-solute formula: Osm ≈ Dextrose(g/L)×5 + AA(g/L)×10 + Electrolytes. Thresholds: ≤ 900 peripheral; 900–1200 caution; > 1200 central. Lab-measured value is the gold standard. Derived from Mirtallo 2004, Pittiruti 2009, Dugan 2014. Not medical advice.

Health

Transferrin Saturation (TSAT) Calculator

Calculate Transferrin Saturation (TSAT) = Serum Iron / TIBC × 100% (matching units, µg/dL or µmol/L). Reference range ≈ 20–50% in men and 15–50% in women. TSAT < 20% (or < 15% in premenopausal women) indicates iron deficiency (iron-deficiency anemia from chronic blood loss, inadequate intake, malabsorption), and is highly specific when ferritin is also low. TSAT > 50% (> 45% premenopausal) indicates iron overload or ineffective erythropoiesis: hereditary hemochromatosis, thalassemia major, sideroblastic anemia, repeated transfusions, or excessive iron therapy. Note serum iron has diurnal variation (morning high, evening low) and is shifted by recent iron ingestion, infection/inflammation, and hepatic disease — interpret with ferritin and CRP. Derived from Camaschella Blood 2019, Guyatt 1992, and MDCalc. Not medical advice.