Measuring Entropy Change in a Human Physiological System

<div>Entropy change (<svg height="11.9316pt" id="M62" style="vertical-align:-3.2957pt" version="1.1" viewbox="-0.0498162 -8.6359 35.1599 11.9316" width="35.1599pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M600 0V24L339 665L311 657L43 24V0H600ZM497 50H107L303 539L497 50Z" id="g113-133"></path><glyph.data ascent="3473" descent="-2876" horiz-adv-x="641" vert-adv-y="641"></glyph.data></g><g transform="matrix(.013,0,0,-0.013,8.327,0)"><path d="M449 634C442 637 425 643 405 650C376 660 341 666 307 666C181 666 98 590 98 485C98 400 170 343 215 310L246 288C307 243 343 204 343 147C343 67 291 18 219 18C104 18 61 124 51 202L23 199C28 124 27 71 27 47C47 22 122 -16 204 -16C324 -16 428 60 428 174C428 256 379 309 307 360L276 382C223 419 179 455 179 516C179 576 221 632 293 632C379 632 410 564 418 487L448 490C446 536 446 592 449 634Z" id="g113-84"></path><glyph.data ascent="3473" descent="-2876" horiz-adv-x="472" vert-adv-y="472"></glyph.data></g><g transform="matrix(.0091,0,0,-0.0091,14.398,3.132)"><path d="M522 166C507 123 488 90 472 71C449 44 419 38 347 38C296 38 261 38 242 51C223 63 217 85 217 132V315H311C398 315 406 310 419 239H453V433H419C406 365 401 358 311 358H217V580C217 609 219 612 251 612H331C400 612 427 604 440 584C453 561 463 541 472 498L506 502C501 558 497 627 497 650H43V618C122 610 130 609 130 520V128C130 46 121 40 30 32V0H521C529 30 552 128 557 162L522 166Z" id="g58-67"></path><glyph.data ascent="1007" descent="-369" horiz-adv-x="580" vert-adv-y="580"></glyph.data></g><g transform="matrix(.0091,0,0,-0.0091,19.676,3.132)"><path d="M871 0V33C783 41 780 45 777 152L768 506C765 610 771 609 860 617V650H683L453 157L228 650H59V617C150 609 154 606 146 481L132 275C124 170 117 125 112 93C105 50 84 39 27 34V0H267V34C200 39 176 48 173 93C170 130 171 172 176 256L190 540H192L414 8H438L682 554H685L689 152C689 45 686 41 604 33V0H871Z" id="g58-75"></path><glyph.data ascent="1007" descent="-369" horiz-adv-x="902" vert-adv-y="902"></glyph.data></g><g transform="matrix(.0091,0,0,-0.0091,27.829,3.132)"><path d="M700 305H441V272C542 264 548 258 548 186V107C548 64 536 53 516 42C493 30 462 24 429 24C237 24 151 189 151 333C151 517 264 626 415 626C507 626 585 594 609 470L642 476C634 544 629 601 626 636C594 644 513 665 429 665C234 665 46 554 46 321C46 123 194 -15 415 -15C495 -15 578 7 642 22C635 50 635 81 635 116V201C635 259 639 264 700 272V305Z" id="g58-69"></path><glyph.data ascent="1007" descent="-369" horiz-adv-x="725" vert-adv-y="725"></glyph.data></g></svg>) across eight subjects: 2, 5, and 8 show significantly different patterns of variations while 7 exhibits a unique pattern.</div>

Journal of Thermodynamics

Measuring Entropy Change in a Human Physiological System

Figure 2