Born to Etiquette#
The five sequencesâNihilism through Integration, Lens, Fragmented to United, Hate to Trust, and Cacophony to Symphonyâshed light on data harmonization methods within the clinical research ecosystem, as illustrated by a web app for living donor nephrectomy decisions. This ecosystem, encompassing students, professors, care providers, patients, analysts, academic departments, administrators, and federal employees with NHANES access, relies on harmonizing heterogeneous dataâdonor registries, NHANES controls, Cox regression outputsâto produce Kaplan-Meier curves for outcomes like perioperative mortality or ESRD risk. Each sequence reveals how harmonization methods bridge disparities, enabling the app to unify this complex network into a coherent tool for decision-making.

Fig. 34 He Does it Again. If we can send AIs to visit other planets and perhaps galaxies, surely aliens coud do the same and visit us. Thus UFOs are not that much of a stretch, especially in a nuclear world â aliens have recognized the âarrivalâ of another intelligence that has learned to harness the energy of the stars. We must overcome biological imperatives: status, tribe, etc. Itâs clear that AI is one such approach. Matrix#
The first sequence, Nihilism to Integration, portrays harmonization as a remedy for ecosystem breakdown. Nihilism, a failure to integrate, festers when donor data lists ages in ranges, NHANES uses raw counts, and analystsâ .csv files diverge in structureâunharmonized, theyâre incompatible. Deconstruction employs profiling to dissect these differences, identifying variables like âmortalityâ coded differently across sources. Perspective emerges as stakeholders adopt semantic mapping, linking donor-specific risks to NHANES population norms. Awareness sparks the use of a common data model (e.g., OMOP), aligning fields like âsexâ or âtime-to-event.â Reconstruction applies transformationâconverting disparate units (e.g., days to years)âand Integration delivers the appâs back end on GitHub Pages, where harmonized beta coefficients fuel consistent 95% CIs. Harmonization here turns chaos into cohesion, a painstaking climb from isolation to unity.
âLens,â the second sequence, is the web appâa crucible for harmonization methods. Built with JavaScript and HTML, it merges NHANES cumulative incidence functions, donor stats, and patient inputs from drop-down menus into two curves. Record linkage harmonizes identifiersâmatching âpatient ageâ across datasets despite varied formatsâwhile ontology alignment (e.g., SNOMED) unifies terms like âESRD.â For sparse data (e.g., an 85-year-old donor), imputation borrows NHANES patterns to stabilize wide CIs. Analysts refine this via GitHub commits, administrators enforce IRB-aligned metadata, and care providers validate outputs. The Lens thrives when harmonization smooths these seams; without it, inputs like donor risks and NHANES baselines misalign, fracturing the appâs reliability and exposing harmonizationâs precision as its backbone.
Fragmented to United, the third sequence, highlights harmonizationâs role in resolving binary divides. Fragmentation persists when NHANES offers broad aggregates and donor data drills into specificsâunharmonized, they skew the appâs baseline vs. nephrectomy curves. Data fusion methods, like statistical matching, pair similar records (e.g., age-sex cohorts) across sources, while schema integration maps disparate fields into a shared structure. This unity empowers patients to compare risks reliably, but gapsâlike missing elderly donor outcomesâtest the limits: incomplete harmonization widens CIs, unsettling care providers. This sequence shows harmonization as a bridge, forging a single narrative from split datasets, though partial efforts leave cracks in the foundation.
The fourth sequence, Hate to Trust, frames harmonization as a trust catalyst amid stakeholder friction. âHateâ arises when unharmonized data sows doubtâpatients question curves from mismatched metrics, analysts suspect professorsâ hidden tweaks, federal employees withhold NHANES over format clashes. âNegotiateâ leverages crosswalksâtranslating donor âevent timesâ to NHANES scalesâor consensus vocabularies (e.g., ICD-10), easing disputes. âTrustâ blooms as harmonization proves its worth: the appâs outputs align when perioperative risks match across sources, reassuring all. This dynamic reveals harmonizationâs human stakes: it demands agreement on standards, turning skepticism into reliance, with the Lens as the proving ground for shared, harmonized truth.
Cacophony to Symphony, the fifth sequence, captures harmonizationâs triumph over data discord. âCacophonyâ echoes in clashing inputsâdonor free-text notes, NHANES statistical noise, analystsâ bespoke modelsâdefying unity. âOutsideâ sees external NHANES data harmonized via ETL pipelines, extracting and transforming it to fit donor schemas. âEmotionâ reflects the strainâstudents debug mismatches, patients face uncertain 30-year risksâbut âInsideâ applies normalization (e.g., standardizing risk scores), aligning inputs for the appâs base-case function. âSymphonyâ emerges as harmonized data sings: curves reflect a unified reality, stakeholders trust the result. This arc casts harmonization as a conductor, weaving noisy threads into harmony, though incomplete methods risk off-key notes.
These methodsâprofiling, mapping, fusion, transformationâanchor the ecosystemâs integration. For the nephrectomy app, they align NHANES to donor data, ensuring the Lens delivers clear curves despite sparse inputs (e.g., elderly donors). Beyond medicine, they scale to any fragmented systemâtech syncing logs, policy blending surveysâwhere harmonization turns dissonance into dialogue. The app, fueled by a GitHub-hosted .csv, shows that without these techniques, data remains a cacophony; with them, it becomes a symphony of informed choice.
Show code cell source
import numpy as np
import matplotlib.pyplot as plt
import networkx as nx
# Define the neural network layers
def define_layers():
return {
'Suis': ['DNA, RNA, 5%', 'Peptidoglycans, Lipoteichoics', 'Lipopolysaccharide', 'N-Formylmethionine', "Glucans, Chitin", 'Specific Antigens'],
'Voir': ['PRR & ILCs, 20%'],
'Choisis': ['CD8+, 50%', 'CD4+'],
'Deviens': ['TNF-ι, IL-6, IFN-γ', 'PD-1 & CTLA-4', 'Tregs, IL-10, TGF-β, 20%'],
"M'èlÊve": ['Complement System', 'Platelet System', 'Granulocyte System', 'Innate Lymphoid Cells, 5%', 'Adaptive Lymphoid Cells']
}
# Assign colors to nodes
def assign_colors():
color_map = {
'yellow': ['PRR & ILCs, 20%'],
'paleturquoise': ['Specific Antigens', 'CD4+', 'Tregs, IL-10, TGF-β, 20%', 'Adaptive Lymphoid Cells'],
'lightgreen': ["Glucans, Chitin", 'PD-1 & CTLA-4', 'Platelet System', 'Innate Lymphoid Cells, 5%', 'Granulocyte System'],
'lightsalmon': ['Lipopolysaccharide', 'N-Formylmethionine', 'CD8+, 50%', 'TNF-Îą, IL-6, IFN-Îł', 'Complement System'],
}
return {node: color for color, nodes in color_map.items() for node in nodes}
# Define edge weights
def define_edges():
return {
('DNA, RNA, 5%', 'PRR & ILCs, 20%'): '1/99',
('Peptidoglycans, Lipoteichoics', 'PRR & ILCs, 20%'): '5/95',
('Lipopolysaccharide', 'PRR & ILCs, 20%'): '20/80',
('N-Formylmethionine', 'PRR & ILCs, 20%'): '51/49',
("Glucans, Chitin", 'PRR & ILCs, 20%'): '80/20',
('Specific Antigens', 'PRR & ILCs, 20%'): '95/5',
('PRR & ILCs, 20%', 'CD8+, 50%'): '20/80',
('PRR & ILCs, 20%', 'CD4+'): '80/20',
('CD8+, 50%', 'TNF-Îą, IL-6, IFN-Îł'): '49/51',
('CD8+, 50%', 'PD-1 & CTLA-4'): '80/20',
('CD8+, 50%', 'Tregs, IL-10, TGF-β, 20%'): '95/5',
('CD4+', 'TNF-Îą, IL-6, IFN-Îł'): '5/95',
('CD4+', 'PD-1 & CTLA-4'): '20/80',
('CD4+', 'Tregs, IL-10, TGF-β, 20%'): '51/49',
('TNF-Îą, IL-6, IFN-Îł', 'Complement System'): '80/20',
('TNF-Îą, IL-6, IFN-Îł', 'Platelet System'): '85/15',
('TNF-Îą, IL-6, IFN-Îł', 'Granulocyte System'): '90/10',
('TNF-Îą, IL-6, IFN-Îł', 'Innate Lymphoid Cells, 5%'): '95/5',
('TNF-Îą, IL-6, IFN-Îł', 'Adaptive Lymphoid Cells'): '99/1',
('PD-1 & CTLA-4', 'Complement System'): '1/9',
('PD-1 & CTLA-4', 'Platelet System'): '1/8',
('PD-1 & CTLA-4', 'Granulocyte System'): '1/7',
('PD-1 & CTLA-4', 'Innate Lymphoid Cells, 5%'): '1/6',
('PD-1 & CTLA-4', 'Adaptive Lymphoid Cells'): '1/5',
('Tregs, IL-10, TGF-β, 20%', 'Complement System'): '1/99',
('Tregs, IL-10, TGF-β, 20%', 'Platelet System'): '5/95',
('Tregs, IL-10, TGF-β, 20%', 'Granulocyte System'): '10/90',
('Tregs, IL-10, TGF-β, 20%', 'Innate Lymphoid Cells, 5%'): '15/85',
('Tregs, IL-10, TGF-β, 20%', 'Adaptive Lymphoid Cells'): '20/80'
}
# Define edges to be highlighted in black
def define_black_edges():
return {
('Tregs, IL-10, TGF-β, 20%', 'Complement System'): '1/99',
('Tregs, IL-10, TGF-β, 20%', 'Platelet System'): '5/95',
('Tregs, IL-10, TGF-β, 20%', 'Granulocyte System'): '10/90',
('Tregs, IL-10, TGF-β, 20%', 'Innate Lymphoid Cells, 5%'): '15/85',
('Tregs, IL-10, TGF-β, 20%', 'Adaptive Lymphoid Cells'): '20/80'
}
# Calculate node positions
def calculate_positions(layer, x_offset):
y_positions = np.linspace(-len(layer) / 2, len(layer) / 2, len(layer))
return [(x_offset, y) for y in y_positions]
# Create and visualize the neural network graph
def visualize_nn():
layers = define_layers()
colors = assign_colors()
edges = define_edges()
black_edges = define_black_edges()
G = nx.DiGraph()
pos = {}
node_colors = []
# Create mapping from original node names to numbered labels
mapping = {}
counter = 1
for layer in layers.values():
for node in layer:
mapping[node] = f"{counter}. {node}"
counter += 1
# Add nodes with new numbered labels and assign positions
for i, (layer_name, nodes) in enumerate(layers.items()):
positions = calculate_positions(nodes, x_offset=i * 2)
for node, position in zip(nodes, positions):
new_node = mapping[node]
G.add_node(new_node, layer=layer_name)
pos[new_node] = position
node_colors.append(colors.get(node, 'lightgray'))
# Add edges with updated node labels
edge_colors = []
for (source, target), weight in edges.items():
if source in mapping and target in mapping:
new_source = mapping[source]
new_target = mapping[target]
G.add_edge(new_source, new_target, weight=weight)
edge_colors.append('black' if (source, target) in black_edges else 'lightgrey')
# Draw the graph
plt.figure(figsize=(12, 8))
edges_labels = {(u, v): d["weight"] for u, v, d in G.edges(data=True)}
nx.draw(
G, pos, with_labels=True, node_color=node_colors, edge_color=edge_colors,
node_size=3000, font_size=9, connectionstyle="arc3,rad=0.2"
)
nx.draw_networkx_edge_labels(G, pos, edge_labels=edges_labels, font_size=8)
plt.title("OPRAHâ˘: Distributed Network", fontsize=18)
plt.show()
# Run the visualization
visualize_nn()

Fig. 35 Glenn Gould and Leonard Bernstein famously disagreed over the tempo and interpretation of Brahmsâ First Piano Concerto during a 1962 New York Philharmonic concert, where Bernstein, conducting, publicly distanced himself from Gouldâs significantly slower-paced interpretation before the performance began, expressing his disagreement with the unconventional approach while still allowing Gould to perform it as planned; this event is considered one of the most controversial moments in classical music history.#