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<front>
<journal-meta>
<journal-id journal-id-type="pmc">CMC</journal-id>
<journal-id journal-id-type="nlm-ta">CMC</journal-id>
<journal-id journal-id-type="publisher-id">CMC</journal-id>
<journal-title-group>
<journal-title>Computers, Materials &#x0026; Continua</journal-title>
</journal-title-group>
<issn pub-type="epub">1546-2226</issn>
<issn pub-type="ppub">1546-2218</issn>
<publisher>
<publisher-name>Tech Science Press</publisher-name>
<publisher-loc>USA</publisher-loc>
</publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="publisher-id">31352</article-id>
<article-id pub-id-type="doi">10.32604/cmc.2023.031352</article-id>
<article-categories>
<subj-group subj-group-type="heading">
<subject>Article</subject>
</subj-group>
</article-categories>
<title-group>
<article-title>Fractional Order Nonlinear Bone Remodeling Dynamics Using the Supervised Neural Network</article-title>
<alt-title alt-title-type="left-running-head">Fractional Order Nonlinear Bone Remodeling Dynamics Using the Supervised Neural Network</alt-title>
<alt-title alt-title-type="right-running-head">Fractional Order Nonlinear Bone Remodeling Dynamics Using the Supervised Neural Network</alt-title>
</title-group>
<contrib-group content-type="authors">
<contrib id="author-1" contrib-type="author">
<name name-style="western"><surname>Yotha</surname><given-names>Narongsak</given-names></name><xref ref-type="aff" rid="aff-1">1</xref></contrib>
<contrib id="author-2" contrib-type="author">
<name name-style="western"><surname>Hiader</surname><given-names>Qusain</given-names></name><xref ref-type="aff" rid="aff-2">2</xref></contrib>
<contrib id="author-3" contrib-type="author">
<name name-style="western"><surname>Sabir</surname><given-names>Zulqurnain</given-names></name><xref ref-type="aff" rid="aff-3">3</xref></contrib>
<contrib id="author-4" contrib-type="author">
<name name-style="western"><surname>Raja</surname><given-names>Muhammad Asif Zahoor</given-names></name><xref ref-type="aff" rid="aff-4">4</xref></contrib>
<contrib id="author-5" contrib-type="author">
<name name-style="western"><surname>Said</surname><given-names>Salem Ben</given-names></name><xref ref-type="aff" rid="aff-5">5</xref></contrib>
<contrib id="author-6" contrib-type="author">
<name name-style="western"><surname>Al-Mdallal</surname><given-names>Qasem</given-names></name><xref ref-type="aff" rid="aff-5">5</xref></contrib>
<contrib id="author-7" contrib-type="author">
<name name-style="western"><surname>Botmart</surname><given-names>Thongchai</given-names></name><xref ref-type="aff" rid="aff-6">6</xref></contrib>
<contrib id="author-8" contrib-type="author" corresp="yes">
<name name-style="western"><surname>Weera</surname><given-names>Wajaree</given-names></name><xref ref-type="aff" rid="aff-6">6</xref><email>wajawe@kku.ac.th</email></contrib>
<aff id="aff-1"><label>1</label><institution>Department of Applied Mathematics and Statistics, Rajamangala University of Technology Isan</institution>, <addr-line>Nakhon Ratchasima, 30000</addr-line>, <country>Thailand</country></aff>
<aff id="aff-2"><label>2</label><institution>Department of Mathematics, University of Gujrat</institution>, <addr-line>Gujrat, 50700</addr-line>, <country>Pakistan</country></aff>
<aff id="aff-3"><label>3</label><institution>Department of Mathematics, Hazara University</institution>, <addr-line>Mansehra, 21120</addr-line>, <country>Pakistan</country></aff>
<aff id="aff-4"><label>4</label><institution>Future Technology Research Center, National Yunlin University of Science and Technology</institution>, <addr-line>Douliou, Yunlin, 64002</addr-line>, <country>Taiwan</country></aff>
<aff id="aff-5"><label>5</label><institution>Department of Mathematical Science, College of Science, United Arab Emirates University</institution>, <addr-line>Al Ain, Abu Dhabi</addr-line>, <country>UAE</country></aff>
<aff id="aff-6"><label>6</label><institution>Department of Mathematics, Faculty of Science, Khon Kaen University</institution>, <addr-line>Khon Kaen, 40002</addr-line>, <country>Thailand</country></aff>
</contrib-group>
<author-notes>
<corresp id="cor1"><label>&#x002A;</label>Corresponding Author: Wajaree Weera. Email: <email>wajawe@kku.ac.th</email></corresp>
</author-notes>
<pub-date pub-type="epub" date-type="pub" iso-8601-date="2022-10-28"><day>28</day>
<month>10</month>
<year>2022</year></pub-date>
<volume>74</volume>
<issue>2</issue>
<fpage>2415</fpage>
<lpage>2430</lpage>
<history>
<date date-type="received"><day>15</day><month>4</month><year>2022</year></date>
<date date-type="accepted"><day>17</day><month>5</month><year>2022</year></date>
</history>
<permissions>
<copyright-statement>&#x00A9; 2023 Yotha et al.</copyright-statement>
<copyright-year>2023</copyright-year>
<copyright-holder>Yotha et al.</copyright-holder>
<license xlink:href="https://creativecommons.org/licenses/by/4.0/">
<license-p>This work is licensed under a <ext-link ext-link-type="uri" xlink:type="simple" xlink:href="https://creativecommons.org/licenses/by/4.0/">Creative Commons Attribution 4.0 International License</ext-link>, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</license-p>
</license>
</permissions>
<self-uri content-type="pdf" xlink:href="TSP_CMC_31352.pdf"></self-uri>
<abstract>
<p>This study aims to solve the nonlinear fractional-order mathematical model (FOMM) by using the normal and dysregulated bone remodeling of the myeloma bone disease (MBD). For the more precise performance of the model, fractional-order derivatives have been used to solve the disease model numerically. The FOMM is preliminarily designed to focus on the critical interactions between bone resorption or osteoclasts (OC) and bone formation or osteoblasts (OB). The connections of OC and OB are represented by a nonlinear differential system based on the cellular components, which depict stable fluctuation in the usual bone case and unstable fluctuation through the MBD. Untreated myeloma causes by increasing the OC and reducing the osteoblasts, resulting in net bone waste the tumor growth. The solutions of the FOMM will be provided by using the stochastic framework based on the Levenberg-Marquardt backpropagation (LVMBP) neural networks (NN), i.e., LVMBPNN. The mathematical performances of three variations of the fractional-order derivative based on the nonlinear disease model using the LVMPNN. The static structural performances are 82&#x0025; for investigation and 9&#x0025; for both learning and certification. The performances of the LVMBPNN are authenticated by using the results of the Adams-Bashforth-Moulton mechanism. To accomplish the capability, steadiness, accuracy, and ability of the LVMBPNN, the performances of the error histograms (EHs), mean square error (MSE), recurrence, and state transitions (STs) will be provided.</p>
</abstract>
<kwd-group kwd-group-type="author">
<kwd>Bone remodeling</kwd>
<kwd>fractional-order</kwd>
<kwd>myeloma disease</kwd>
<kwd>artificial neural networks</kwd>
<kwd>levenberg-marquardt backpropagation</kwd>
<kwd>population cell dynamics</kwd>
</kwd-group>
</article-meta>
</front>
<body>
<sec id="s1"><label>1</label><title>Introduction</title>
<p>Remodeling is a procedure where the bone is constantly renewed across the skeleton. The bone formation methodology is sparsely heterogeneous using the common and sync cycles that can occur in various locations by using 5&#x0025; to 25&#x0025; based on the bone surface [<xref ref-type="bibr" rid="ref-1">1</xref>]. As a result, each skeleton part undergoes regular remodeling over time. Various aspects of bone renovation have been studied by using mathematical models. Michaelis-Menten investigated the dynamics based on the modelling of the OC activity (system through which OC break the bone) [<xref ref-type="bibr" rid="ref-2">2</xref>] along with the physiological stress that persuades the bone growth [<xref ref-type="bibr" rid="ref-3">3</xref>&#x2013;<xref ref-type="bibr" rid="ref-6">6</xref>]. Many studies of bone metabolism based on the signal transduction models have been presented using the OC and osteoblasts (OB) [<xref ref-type="bibr" rid="ref-7">7</xref>]. The behavior of OC and OB in a cellular environment is recognized as a basic multicellular unit [<xref ref-type="bibr" rid="ref-8">8</xref>&#x2013;<xref ref-type="bibr" rid="ref-12">12</xref>].</p>
<p>In this study, the numerical simulations of the myeloma bone disease have been discussed. Myeloma is one of the forms of hematological cancer, distinguished by the growth and division of the cancerous plasma cells. The evolution of the dangerous disease based on the osteolytic, bone pain, psychopathology breaks, osteoporosis, hyperglycemia, and spinal stenosis, is among the most common clinical symptoms of myeloma. Furthermore, the connection between the melanoma cells and the bone marrow systemic immune cells has been performed through the myeloma survival and growth [<xref ref-type="bibr" rid="ref-13">13</xref>,<xref ref-type="bibr" rid="ref-14">14</xref>].</p>
<p>The investigations of these actions are significant due to both primary bone tumors and metastatic, caused by the other types of cancer. In smooth extension procedures, prostate and breast cancers are notably recognized [<xref ref-type="bibr" rid="ref-15">15</xref>]. In tumor-induced osteolytic lesions, a process is not wholly obtained that promotes the OC bustle and changes the quantity of the OB [<xref ref-type="bibr" rid="ref-16">16</xref>,<xref ref-type="bibr" rid="ref-17">17</xref>]. However, the bone tissue attitude has been extensively studied to understand the phenomenon. Several theories about functional adaptation and many adaptive capacity models have been presented over the last few decades. The proposed models can be classified into the phenomenologist or monolithic. The mechanism is modeled by considering the initial and final states to focus on the mechanical variables, whereas deterministic models attempt to incorporate biological and biochemical processes into the model [<xref ref-type="bibr" rid="ref-18">18</xref>].</p>
<p>The biochemical procedures of the remodeling of bone can be emulated by using the computational and statistical systems, which are designed to allow the association with the healthy and pathophysiological bone actions. A differential system that correspond to the communication of OB and OC to simulate the consequences of paracrine and autocrine mechanisms. The dynamic response of these cell populations was calculated; as a result to determine the changes in bone during the remodeling cycles. A confined system for the tissue of healthy bone was first anticipated in [<xref ref-type="bibr" rid="ref-19">19</xref>], and it was later expanded in [<xref ref-type="bibr" rid="ref-20">20</xref>] to comprise the tumorous impact of several myeloma diseases along with the non-local approach with diffusion. Biological processes frequently exhibit anomalous spreading or viscoelasticity using fractional differential equations [<xref ref-type="bibr" rid="ref-21">21</xref>,<xref ref-type="bibr" rid="ref-22">22</xref>]. As a result, by including a fractional-order, existing models can be improved [<xref ref-type="bibr" rid="ref-23">23</xref>,<xref ref-type="bibr" rid="ref-24">24</xref>]. Numerous biological tissues have thus been sufficiently explained, e.g., the human respiratory system [<xref ref-type="bibr" rid="ref-25">25</xref>] and the movement of sap in leaves [<xref ref-type="bibr" rid="ref-26">26</xref>]. Although not trivial, it is vital to show a geometrical or physical perception of the resulting differential equations [<xref ref-type="bibr" rid="ref-27">27</xref>]. Bone remodeling demonstrates anomalous dissemination in the case under consideration. On the other hand, many underlying mechanisms, show fractional-order behavior that varies over time or space [<xref ref-type="bibr" rid="ref-28">28</xref>,<xref ref-type="bibr" rid="ref-29">29</xref>]. Instead of myeloma, the referred models have been seen to understand the osteolytic metastatic bone environment better.</p>
<p>The effects of cancer growth are based on bone remodeling, which indicates specifically to check the influence of tumor and paracrine signaling in bone resorption and OB cells. Autocrine signaling is the reaction from OCs and OBs that regulates their formation. The factors produced by OCs that control OB formation are referred to as paracrine signaling. The mathematical form of the bone remodeling is provided in the absence of cancer and further investigations [<xref ref-type="bibr" rid="ref-30">30</xref>&#x2013;<xref ref-type="bibr" rid="ref-32">32</xref>]. In this nonlinear system with no exact space proportions, a dependent form of the variable tracks the bone mass over time. One spatial dimension is mentioned by interpreting the bone mass equation as one of the localized trabecular masses (spongy bone found within the bone marrow) beneath a point on the bone&#x2019;s surface.</p>
<p>The fractional-order derivatives of regular and myeloma bone disease models based on the bone remodeling with tumor effects have been presented in this study by using the stochastic mathematical performances of the Levenberg-Marquardt backpropagation (LVMBP) neural networks (NN), i.e., LVMBPNN.</p>
<p>The paper is systematized as follows: Section 2 demonstrates the configuration of the fractional MDM mathematical form, Section 3 contains the information on the stochastic applications, Section 4 is explained the LVMBPNN method, and Section 5 contains the simulations procedures of the fractional MDM model. Finally, Section 6 is presented based on the concluding remarks.</p>
</sec>
<sec id="s2"><label>2</label><title>Fractional Order Mathematical Bone Remodeling System</title>
<p>In this section, the presence of the myeloma disrupts the regular rotations of the system of normal bone. The tumor (cancer) parameters represent the usual cycles, cycles culminating, mostly damped fluctuations that combine the nontrivial stable position. The unknown form of the independent variables based on the tumor and bone remodeling model (TBRM) are <inline-formula id="ieqn-1"><mml:math id="mml-ieqn-1"><mml:mi>C</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:math></inline-formula>, <inline-formula id="ieqn-2"><mml:math id="mml-ieqn-2"><mml:mi>B</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:math></inline-formula>, and <inline-formula id="ieqn-3"><mml:math id="mml-ieqn-3"><mml:mi>T</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:math></inline-formula> is tumor cell density. The MDM form of the mathematical system is given as [<xref ref-type="bibr" rid="ref-33">33</xref>]:
<disp-formula id="eqn-1"><label>(1)</label><mml:math id="mml-eqn-1" display="block"><mml:mrow><mml:mo>{</mml:mo><mml:mrow><mml:mtable columnalign="left left" rowspacing="4pt" columnspacing="1em"><mml:mtr><mml:mtd><mml:mstyle displaystyle="true" scriptlevel="0"><mml:mfrac><mml:mrow><mml:mi>d</mml:mi><mml:mi>C</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mi>d</mml:mi><mml:mi>t</mml:mi></mml:mrow></mml:mfrac></mml:mstyle><mml:mo>=</mml:mo><mml:mo>&#x2212;</mml:mo><mml:mrow><mml:msub><mml:mi>&#x03B2;</mml:mi><mml:mi>C</mml:mi></mml:msub></mml:mrow><mml:mi>C</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo><mml:mo>+</mml:mo><mml:mrow><mml:msub><mml:mi>&#x03B1;</mml:mi><mml:mi>C</mml:mi></mml:msub></mml:mrow><mml:mi>B</mml:mi><mml:msup><mml:mrow><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo 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stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mrow><mml:mo>(</mml:mo><mml:mrow><mml:mrow><mml:msub><mml:mi>g</mml:mi><mml:mrow><mml:mi>B</mml:mi><mml:mi>B</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>&#x2212;</mml:mo><mml:mrow><mml:msub><mml:mi>r</mml:mi><mml:mrow><mml:mi>B</mml:mi><mml:mi>B</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mstyle displaystyle="true" scriptlevel="0"><mml:mfrac><mml:mrow><mml:mi>T</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:msub><mml:mi>L</mml:mi><mml:mi>T</mml:mi></mml:msub></mml:mfrac></mml:mstyle></mml:mrow><mml:mo>)</mml:mo></mml:mrow></mml:mrow></mml:msup><mml:mo>,</mml:mo></mml:mtd><mml:mtd><mml:mrow><mml:msub><mml:mi>B</mml:mi><mml:mn>0</mml:mn></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mrow><mml:msub><mml:mi>k</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow><mml:mo>,</mml:mo></mml:mtd></mml:mtr><mml:mtr><mml:mtd><mml:mstyle displaystyle="true" scriptlevel="0"><mml:mfrac><mml:mrow><mml:mi>d</mml:mi><mml:mi>T</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mi>d</mml:mi><mml:mi>t</mml:mi></mml:mrow></mml:mfrac></mml:mstyle><mml:mo>=</mml:mo><mml:mrow><mml:msub><mml:mi>&#x03B3;</mml:mi><mml:mi>T</mml:mi></mml:msub></mml:mrow><mml:mi>T</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo><mml:mi>log</mml:mi><mml:mo>&#x2061;</mml:mo><mml:mrow><mml:mo>(</mml:mo><mml:mstyle displaystyle="true" scriptlevel="0"><mml:mfrac><mml:msub><mml:mi>L</mml:mi><mml:mi>T</mml:mi></mml:msub><mml:mrow><mml:mi>T</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow></mml:mfrac></mml:mstyle><mml:mo>)</mml:mo></mml:mrow><mml:mo>.</mml:mo></mml:mtd><mml:mtd><mml:mrow><mml:msub><mml:mi>T</mml:mi><mml:mn>0</mml:mn></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mrow><mml:msub><mml:mi>k</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:mrow><mml:mo>.</mml:mo></mml:mtd></mml:mtr></mml:mtable></mml:mrow><mml:mo fence="true" stretchy="true" symmetric="true"></mml:mo></mml:mrow></mml:math></disp-formula><inline-formula id="ieqn-4"><mml:math id="mml-ieqn-4"><mml:mrow><mml:msub><mml:mi>C</mml:mi><mml:mn>0</mml:mn></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mrow><mml:msub><mml:mi>k</mml:mi><mml:mn>1</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula>, <inline-formula id="ieqn-5"><mml:math id="mml-ieqn-5"><mml:mrow><mml:msub><mml:mi>B</mml:mi><mml:mn>0</mml:mn></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mrow><mml:msub><mml:mi>k</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula>, and <inline-formula id="ieqn-6"><mml:math id="mml-ieqn-6"><mml:mrow><mml:msub><mml:mi>T</mml:mi><mml:mn>0</mml:mn></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mrow><mml:msub><mml:mi>k</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula> are the initial conditions (ICs). <xref ref-type="disp-formula" rid="eqn-1">Eq. (1)</xref> shows the Gompertz tumor form with growth constant <inline-formula id="ieqn-7"><mml:math id="mml-ieqn-7"><mml:mrow><mml:msub><mml:mi>&#x03B3;</mml:mi><mml:mi>T</mml:mi></mml:msub></mml:mrow><mml:mo>&#x003E;</mml:mo><mml:mn>0</mml:mn></mml:math></inline-formula> with greater tumor size <inline-formula id="ieqn-8"><mml:math id="mml-ieqn-8"><mml:mrow><mml:msub><mml:mi>L</mml:mi><mml:mi>T</mml:mi></mml:msub></mml:mrow></mml:math></inline-formula>. <inline-formula id="ieqn-9"><mml:math id="mml-ieqn-9"><mml:mrow><mml:msub><mml:mi>&#x03B3;</mml:mi><mml:mi>T</mml:mi></mml:msub></mml:mrow></mml:math></inline-formula> has been assumed to be independent of osteoporosis. Models, biological tests, and simulations have been applied to find the <inline-formula id="ieqn-10"><mml:math id="mml-ieqn-10"><mml:mrow><mml:msub><mml:mi>&#x03B3;</mml:mi><mml:mi>T</mml:mi></mml:msub></mml:mrow></mml:math></inline-formula> dependence. The tumor measures <inline-formula id="ieqn-11"><mml:math id="mml-ieqn-11"><mml:mrow><mml:msub><mml:mi>r</mml:mi><mml:mrow><mml:mi>B</mml:mi><mml:mi>C</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math></inline-formula>, <inline-formula id="ieqn-12"><mml:math id="mml-ieqn-12"><mml:mrow><mml:msub><mml:mi>r</mml:mi><mml:mrow><mml:mi>C</mml:mi><mml:mi>C</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math></inline-formula>, <inline-formula id="ieqn-13"><mml:math id="mml-ieqn-13"><mml:mrow><mml:msub><mml:mi>r</mml:mi><mml:mrow><mml:mi>C</mml:mi><mml:mi>B</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math></inline-formula>, and <inline-formula id="ieqn-14"><mml:math id="mml-ieqn-14"><mml:mrow><mml:msub><mml:mi>r</mml:mi><mml:mrow><mml:mi>B</mml:mi><mml:mi>B</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math></inline-formula> are all nonnegative in the system (1). The presence of tumor changes (1) is as follows: autocrine advancement of OCs increases <inline-formula id="ieqn-15"><mml:math id="mml-ieqn-15"><mml:mrow><mml:mo>(</mml:mo><mml:mrow><mml:mrow><mml:msub><mml:mi>g</mml:mi><mml:mrow><mml:mi>c</mml:mi><mml:mi>c</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:mo>(</mml:mo><mml:mrow><mml:mn>1</mml:mn><mml:mo>+</mml:mo><mml:mrow><mml:msub><mml:mi>r</mml:mi><mml:mrow><mml:mi>C</mml:mi><mml:mi>C</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mfrac><mml:mrow><mml:mi>T</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mrow><mml:msub><mml:mi>L</mml:mi><mml:mi>T</mml:mi></mml:msub></mml:mrow></mml:mrow></mml:mfrac></mml:mrow><mml:mo>)</mml:mo></mml:mrow><mml:mo>&#x003E;</mml:mo><mml:mn>0</mml:mn><mml:mrow><mml:mo>,</mml:mo></mml:mrow><mml:mspace width="thinmathspace" /><mml:mrow><mml:mi mathvariant="normal">s</mml:mi><mml:mi mathvariant="normal">i</mml:mi><mml:mi mathvariant="normal">n</mml:mi><mml:mi mathvariant="normal">c</mml:mi><mml:mi mathvariant="normal">e</mml:mi></mml:mrow><mml:mspace width="thinmathspace" /><mml:mspace width="thinmathspace" /><mml:mrow><mml:msub><mml:mi>g</mml:mi><mml:mrow><mml:mi>C</mml:mi><mml:mi>C</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>&#x003E;</mml:mo><mml:mn>0</mml:mn></mml:mrow><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula>; paracrine suppression of OCs decreases <inline-formula id="ieqn-16"><mml:math id="mml-ieqn-16"><mml:mrow><mml:mo>(</mml:mo><mml:mrow><mml:mfrac><mml:mrow><mml:mrow><mml:msub><mml:mi>g</mml:mi><mml:mrow><mml:mi>C</mml:mi><mml:mi>B</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:mrow><mml:mrow><mml:mn>1</mml:mn><mml:mo>+</mml:mo><mml:mrow><mml:msub><mml:mi>r</mml:mi><mml:mrow><mml:mi>C</mml:mi><mml:mi>B</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mfrac><mml:mrow><mml:mi>T</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mrow><mml:msub><mml:mi>L</mml:mi><mml:mi>T</mml:mi></mml:msub></mml:mrow></mml:mrow></mml:mfrac></mml:mrow></mml:mfrac></mml:mrow><mml:mo>)</mml:mo></mml:mrow><mml:mo>&#x003C;</mml:mo><mml:mrow><mml:msub><mml:mi>g</mml:mi><mml:mrow><mml:mi>C</mml:mi><mml:mi>B</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math></inline-formula>, since <inline-formula id="ieqn-17"><mml:math id="mml-ieqn-17"><mml:mrow><mml:msub><mml:mi>g</mml:mi><mml:mrow><mml:mi>C</mml:mi><mml:mi>B</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>&#x003E;</mml:mo><mml:mn>0</mml:mn><mml:mo stretchy="false">)</mml:mo></mml:math></inline-formula>, paracrine advancement of OBs decreases <inline-formula id="ieqn-18"><mml:math id="mml-ieqn-18"><mml:mo stretchy="false">(</mml:mo><mml:mo>&#x2212;</mml:mo><mml:mrow><mml:msub><mml:mi>g</mml:mi><mml:mrow><mml:mi>B</mml:mi><mml:mi>C</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>&#x003E;</mml:mo><mml:mo>&#x2212;</mml:mo><mml:mrow><mml:msub><mml:mi>g</mml:mi><mml:mrow><mml:mi>B</mml:mi><mml:mi>C</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:mo>(</mml:mo><mml:mrow><mml:mn>1</mml:mn><mml:mo>+</mml:mo><mml:mrow><mml:msub><mml:mi>r</mml:mi><mml:mrow><mml:mi>B</mml:mi><mml:mi>C</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mfrac><mml:mrow><mml:mi>T</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mrow><mml:msub><mml:mi>L</mml:mi><mml:mi>T</mml:mi></mml:msub></mml:mrow></mml:mrow></mml:mfrac></mml:mrow><mml:mo>)</mml:mo></mml:mrow></mml:math></inline-formula>, since <inline-formula id="ieqn-19"><mml:math id="mml-ieqn-19"><mml:mrow><mml:msub><mml:mi>g</mml:mi><mml:mrow><mml:mi>B</mml:mi><mml:mi>C</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>&#x003E;</mml:mo><mml:mn>0</mml:mn><mml:mo stretchy="false">)</mml:mo></mml:math></inline-formula>; and autocrine promotion of OBs decreases <inline-formula id="ieqn-20"><mml:math id="mml-ieqn-20"><mml:mo stretchy="false">(</mml:mo><mml:mrow><mml:msub><mml:mi>g</mml:mi><mml:mrow><mml:mi>B</mml:mi><mml:mi>B</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>&#x2212;</mml:mo><mml:mrow><mml:msub><mml:mi>r</mml:mi><mml:mrow><mml:mi>B</mml:mi><mml:mi>B</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mfrac><mml:mrow><mml:mi>T</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mrow><mml:msub><mml:mi>L</mml:mi><mml:mi>T</mml:mi></mml:msub></mml:mrow></mml:mrow></mml:mfrac><mml:mo>&#x003C;</mml:mo><mml:mrow><mml:msub><mml:mi>g</mml:mi><mml:mrow><mml:mi>B</mml:mi><mml:mi>B</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math></inline-formula>, since <inline-formula id="ieqn-21"><mml:math id="mml-ieqn-21"><mml:mrow><mml:msub><mml:mi>g</mml:mi><mml:mrow><mml:mi>B</mml:mi><mml:mi>B</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>&#x003E;</mml:mo><mml:mn>0</mml:mn><mml:mo stretchy="false">)</mml:mo></mml:math></inline-formula>. A major distinction between the mathematical model and the extension of term <inline-formula id="ieqn-22"><mml:math id="mml-ieqn-22"><mml:mfrac><mml:mrow><mml:mi>T</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mrow><mml:msub><mml:mi>L</mml:mi><mml:mi>T</mml:mi></mml:msub></mml:mrow></mml:mrow></mml:mfrac></mml:math></inline-formula>, which connects the tumor density and maximum length to the power laws for the OC/OB contacts (1).</p>
<p>The numerical studies of the fractional MBD model based on the bone remodeling with the tumor effects (1) have been provided in the current study by using the artificial intelligence (AI) together with the configuration of LVMBPNN [<xref ref-type="bibr" rid="ref-34">34</xref>&#x2013;<xref ref-type="bibr" rid="ref-41">41</xref>]. Furthermore, the fractional MBD model has been designed to present the analysis of super slow evolvement and superfast progressions by substituting the ordinary integer order derivation in the set of <xref ref-type="disp-formula" rid="eqn-1">Eq. (1)</xref> with fractional orders.
<disp-formula id="eqn-2"><label>(2)</label><mml:math id="mml-eqn-2" display="block"><mml:mrow><mml:mo>{</mml:mo><mml:mrow><mml:mtable columnalign="left left" rowspacing="4pt" columnspacing="1em"><mml:mtr><mml:mtd><mml:mrow><mml:mstyle displaystyle="true" scriptlevel="0"><mml:mfrac><mml:mrow><mml:mrow><mml:msup><mml:mi>d</mml:mi><mml:mi>&#x03C4;</mml:mi></mml:msup></mml:mrow><mml:mi>C</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mi>d</mml:mi><mml:mrow><mml:msup><mml:mi>t</mml:mi><mml:mi>&#x03C4;</mml:mi></mml:msup></mml:mrow></mml:mrow></mml:mfrac><mml:mo>=</mml:mo><mml:mo>&#x2212;</mml:mo><mml:mrow><mml:msub><mml:mi>&#x03B2;</mml:mi><mml:mi>C</mml:mi></mml:msub></mml:mrow><mml:mi>C</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo><mml:mo>+</mml:mo><mml:mrow><mml:msub><mml:mi>&#x03B1;</mml:mi><mml:mi>C</mml:mi></mml:msub></mml:mrow><mml:mi>B</mml:mi><mml:mrow><mml:msup><mml:mrow><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mrow><mml:msub><mml:mi>g</mml:mi><mml:mrow><mml:mi>B</mml:mi><mml:mi>C</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:mo>(</mml:mo><mml:mrow><mml:mn>1</mml:mn><mml:mo>+</mml:mo><mml:mrow><mml:msub><mml:mi>r</mml:mi><mml:mrow><mml:mi>B</mml:mi><mml:mi>C</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mstyle displaystyle="true" scriptlevel="0"><mml:mfrac><mml:mrow><mml:mi>T</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mrow><mml:msub><mml:mi>L</mml:mi><mml:mi>T</mml:mi></mml:msub></mml:mrow></mml:mrow></mml:mfrac></mml:mstyle></mml:mrow><mml:mo>)</mml:mo></mml:mrow></mml:mrow></mml:msup></mml:mrow><mml:mi>C</mml:mi><mml:mrow><mml:msup><mml:mrow><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mrow><mml:msub><mml:mi>g</mml:mi><mml:mrow><mml:mi>c</mml:mi><mml:mi>c</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:mo>(</mml:mo><mml:mrow><mml:mn>1</mml:mn><mml:mo>+</mml:mo><mml:mrow><mml:msub><mml:mi>r</mml:mi><mml:mrow><mml:mi>C</mml:mi><mml:mi>C</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mstyle displaystyle="true" scriptlevel="0"><mml:mfrac><mml:mrow><mml:mi>T</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo 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stretchy="false">)</mml:mo></mml:mrow></mml:mfrac></mml:mstyle></mml:mrow><mml:mo>)</mml:mo></mml:mrow><mml:mo>.</mml:mo></mml:mstyle></mml:mrow></mml:mtd><mml:mtd><mml:mrow><mml:mrow><mml:msub><mml:mi>T</mml:mi><mml:mn>0</mml:mn></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mrow><mml:msub><mml:mi>k</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:mrow><mml:mo>.</mml:mo></mml:mrow></mml:mtd></mml:mtr></mml:mtable></mml:mrow><mml:mo fence="true" stretchy="true" symmetric="true"></mml:mo></mml:mrow></mml:math></disp-formula>
This system, <inline-formula id="ieqn-23"><mml:math id="mml-ieqn-23"><mml:mi>&#x03C4;</mml:mi></mml:math></inline-formula> shows the fractional kind of derivative based on the MBD model. <xref ref-type="table" rid="table-1">Tab. 1</xref> shows the details of the parameter characterization based on the myeloma bone disease.</p>
<table-wrap id="table-1"><label>Table 1</label><caption><title>Parameter characterization detail of the myeloma bone disease</title></caption>
<table frame="hsides">
<colgroup>
<col align="left"/>
<col align="left"/>
</colgroup>
<thead>
<tr>
<th align="left">Parameter</th>
<th align="left">Details</th>
</tr>
</thead>
<tbody>
<tr>
<td align="left"><inline-formula id="ieqn-84"><mml:math id="mml-ieqn-84"><mml:mrow><mml:msub><mml:mi>&#x03B1;</mml:mi><mml:mrow><mml:msub><mml:mi></mml:mi><mml:mi>C</mml:mi></mml:msub></mml:mrow></mml:msub></mml:mrow><mml:mo>,</mml:mo><mml:mspace width="thinmathspace" /><mml:mrow><mml:msub><mml:mi>&#x03B1;</mml:mi><mml:mi>B</mml:mi></mml:msub></mml:mrow></mml:math></inline-formula></td>
<td align="left">Activation rate</td>
</tr>
<tr>
<td align="left"><inline-formula id="ieqn-85"><mml:math id="mml-ieqn-85"><mml:mrow><mml:msub><mml:mi>&#x03B2;</mml:mi><mml:mi>B</mml:mi></mml:msub></mml:mrow><mml:mo>,</mml:mo><mml:mspace width="thinmathspace" /><mml:mrow><mml:msub><mml:mi>&#x03B2;</mml:mi><mml:mi>C</mml:mi></mml:msub></mml:mrow></mml:math></inline-formula></td>
<td align="left">Apoptosis rate</td>
</tr>
<tr>
<td align="left"><inline-formula id="ieqn-86"><mml:math id="mml-ieqn-86"><mml:mrow><mml:msub><mml:mi>g</mml:mi><mml:mrow><mml:mi>B</mml:mi><mml:mi>B</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>,</mml:mo><mml:mspace width="thinmathspace" /><mml:mrow><mml:msub><mml:mi>g</mml:mi><mml:mrow><mml:mi>B</mml:mi><mml:mi>C</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>,</mml:mo><mml:mspace width="thinmathspace" /><mml:mrow><mml:msub><mml:mi>g</mml:mi><mml:mrow><mml:mi>C</mml:mi><mml:mi>C</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>,</mml:mo><mml:mspace width="thinmathspace" /><mml:mrow><mml:msub><mml:mi>g</mml:mi><mml:mrow><mml:mi>C</mml:mi><mml:mi>B</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math></inline-formula></td>
<td align="left">Autocrine regulator</td>
</tr>
<tr>
<td align="left"><inline-formula id="ieqn-87"><mml:math id="mml-ieqn-87"><mml:mrow><mml:msub><mml:mi>r</mml:mi><mml:mrow><mml:mi>B</mml:mi><mml:mi>B</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>,</mml:mo><mml:mspace width="thinmathspace" /><mml:mrow><mml:msub><mml:mi>r</mml:mi><mml:mrow><mml:mi>B</mml:mi><mml:mi>C</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>,</mml:mo><mml:mspace width="thinmathspace" /><mml:mrow><mml:msub><mml:mi>r</mml:mi><mml:mrow><mml:mi>C</mml:mi><mml:mi>C</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>,</mml:mo><mml:mspace width="thinmathspace" /><mml:mrow><mml:msub><mml:mi>r</mml:mi><mml:mrow><mml:mi>C</mml:mi><mml:mi>B</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math></inline-formula></td>
<td align="left">Tumorous autocrine and paracrine regulation</td>
</tr>
<tr>
<td align="left"><inline-formula id="ieqn-88"><mml:math id="mml-ieqn-88"><mml:mrow><mml:msub><mml:mi>L</mml:mi><mml:mi>T</mml:mi></mml:msub></mml:mrow></mml:math></inline-formula></td>
<td align="left">Metastases bone size</td>
</tr>
<tr>
<td align="left"><inline-formula id="ieqn-89"><mml:math id="mml-ieqn-89"><mml:mrow><mml:msub><mml:mi>&#x03B3;</mml:mi><mml:mi>T</mml:mi></mml:msub></mml:mrow></mml:math></inline-formula></td>
<td align="left">Growth rate of metastases</td>
</tr>
<tr>
<td align="left"><inline-formula id="ieqn-90"><mml:math id="mml-ieqn-90"><mml:mi>B</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:math></inline-formula></td>
<td align="left">OB</td>
</tr>
<tr>
<td align="left"><inline-formula id="ieqn-91"><mml:math id="mml-ieqn-91"><mml:mi>C</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:math></inline-formula></td>
<td align="left">OC</td>
</tr>
<tr>
<td align="left"><inline-formula id="ieqn-92"><mml:math id="mml-ieqn-92"><mml:mi>T</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:math></inline-formula></td>
<td align="left">Tumorous</td>
</tr>
<tr>
<td align="left"><inline-formula id="ieqn-93"><mml:math id="mml-ieqn-93"><mml:mrow><mml:msub><mml:mi>k</mml:mi><mml:mn>1</mml:mn></mml:msub></mml:mrow><mml:mo>,</mml:mo><mml:mspace width="thinmathspace" /><mml:mrow><mml:msub><mml:mi>k</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow><mml:mo>,</mml:mo><mml:mspace width="thinmathspace" /><mml:mrow><mml:msub><mml:mi>k</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:mrow></mml:math></inline-formula></td>
<td align="left">ICs</td>
</tr>
</tbody>
</table>
</table-wrap>
</sec>
<sec id="s3"><label>3</label><title>Novel Stochastic Solvers Features</title>
<p>In this section, the existing section shows the stochastic operator performances for solving the fractional order computational myeloma bone disease model with LVMBPNN. In the literature, stochastic software solvers have been investigated to solve complicated, singular, and rigid systems [<xref ref-type="bibr" rid="ref-42">42</xref>,<xref ref-type="bibr" rid="ref-43">43</xref>]. Recently, the simulation based on the food chain function [<xref ref-type="bibr" rid="ref-44">44</xref>], infection control model [<xref ref-type="bibr" rid="ref-45">45</xref>], Lane-Emden systems [<xref ref-type="bibr" rid="ref-46">46</xref>], functional order approaches [<xref ref-type="bibr" rid="ref-47">47</xref>], and nonlinear dynamic HIV systems [<xref ref-type="bibr" rid="ref-48">48</xref>&#x2013;<xref ref-type="bibr" rid="ref-50">50</xref>].</p>
<p>This research aims to calculate the numerical performances using the stochastic LVMBPNN for the fractional MBD based on the bone remodeling and the effects of the tumor. It has been discovered that the time-fractional kinds of derivatives can be applied to define the conditions. The remembrance is represented by the derivative order form, but the memory function is represented by the derivative of fractional. Real-world applications are indicated by these fractional derivatives. Some novel characteristics of the LVMBPNN for the mathematical fractional MBD model are reported as:
<list list-type="bullet">
<list-item><p>A novel design numerical solution and fractional derivatives of the MBD model with tumor are presented.</p></list-item>
<list-item><p>Stochastic measures have never been used to solve a fractional-order MBD model based on a remodeling bone with tumor effects.</p></list-item>
<list-item><p>The numerical studies using stochastic paradigms are presented successfully utilizing fractional order MBD mathematical model,</p></list-item>
<list-item><p>To solve the nonlinear fractional-order MBD mathematical model, AI with the design of LMBS-NNs is presented.</p></list-item>
<list-item><p>Three distinct fractional-order deviations based on the MBD model were numerically solved to authorize the proposed approach&#x2019;s dependability.</p></list-item>
<list-item><p>The comparison of the proposed and Adams&#x2013;Bashforth&#x2013;Moulton results demonstrates the excellence of the stochastic solver-based LVMBPNN.</p></list-item>
<list-item><p>The performance of the designed LVMBPNN in solving the fractional order MBD mathematical model is validated by the correlation, regression, STs, MSE, and EHs, results.</p></list-item>
</list></p>
</sec>
<sec id="s4"><label>4</label><title>Proposed Procedures: ANN-LMBP Method</title>
<p>This section of the study describes the proposed LVMBPNN method for presenting numerical bone remodeling model solutions. The proposed LVMBPNN system is introduced in two stages: the significant performances of the ANN-LMBP method and operational plans for solving the mathematical bone remodeling model using the LVMBPNN method.</p>
<p><xref ref-type="fig" rid="fig-1">Fig. 1</xref> depicts the designed approach for solving the nonlinear fractional differential model, based on the number of layer optimization procedures of the ANN-LMBP method. This study statics performances are 82&#x0025;, 9&#x0025;, and 9&#x0025; for training, certification, and checking for dealing with the fractional order computer simulation based on myeloma bone disease.</p>
<fig id="fig-1"><label>Figure 1</label><caption><title>Workflow-based fractional myeloma bone disease model using the LVMBPNN method</title></caption><graphic mimetype="image" mime-subtype="png" xlink:href="CMC_31352-fig-1a.png"/><graphic mimetype="image" mime-subtype="png" xlink:href="CMC_31352-fig-1b.png"/></fig>
</sec>
<sec id="s5"><label>5</label><title>Results and Discussions</title>
<p>Three distinct variabilities of fractional order differential equations of the computational myeloma bone disease model using LVMBPNN are presented in this section. The mathematical representations for each type are as follows:
<list list-type="simple">
<list-item><p><bold>Case 1:</bold> Ad opt the following fractional order (FO) bone disease related model with the suitable values <inline-formula id="ieqn-24"><mml:math id="mml-ieqn-24"><mml:mi>&#x03C4;</mml:mi><mml:mo>=</mml:mo><mml:mn>0.5</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-25"><mml:math id="mml-ieqn-25"><mml:mrow><mml:msub><mml:mi>&#x03B3;</mml:mi><mml:mi>T</mml:mi></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.22</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-26"><mml:math id="mml-ieqn-26"><mml:mrow><mml:msub><mml:mi>L</mml:mi><mml:mi>T</mml:mi></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.14</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-27"><mml:math id="mml-ieqn-27"><mml:mrow><mml:msub><mml:mi>&#x03B2;</mml:mi><mml:mi>B</mml:mi></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.25</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-28"><mml:math id="mml-ieqn-28"><mml:mrow><mml:msub><mml:mi>&#x03B2;</mml:mi><mml:mi>C</mml:mi></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.1</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-29"><mml:math id="mml-ieqn-29"><mml:mrow><mml:msub><mml:mi>&#x03B1;</mml:mi><mml:mi>B</mml:mi></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.22</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-30"><mml:math id="mml-ieqn-30"><mml:mrow><mml:msub><mml:mi>&#x03B1;</mml:mi><mml:mi>C</mml:mi></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.12</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-31"><mml:math id="mml-ieqn-31"><mml:mrow><mml:msub><mml:mi>r</mml:mi><mml:mrow><mml:mi>B</mml:mi><mml:mi>B</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.1</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-32"><mml:math id="mml-ieqn-32"><mml:mrow><mml:msub><mml:mi>r</mml:mi><mml:mrow><mml:mi>C</mml:mi><mml:mi>C</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.18</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-33"><mml:math id="mml-ieqn-33"><mml:mrow><mml:msub><mml:mi>r</mml:mi><mml:mrow><mml:mi>B</mml:mi><mml:mi>C</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.2</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-34"><mml:math id="mml-ieqn-34"><mml:mrow><mml:msub><mml:mi>r</mml:mi><mml:mrow><mml:mi>C</mml:mi><mml:mi>B</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.19</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-35"><mml:math id="mml-ieqn-35"><mml:mrow><mml:msub><mml:mi>g</mml:mi><mml:mrow><mml:mi>B</mml:mi><mml:mi>B</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.09</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-36"><mml:math id="mml-ieqn-36"><mml:mrow><mml:msub><mml:mi>g</mml:mi><mml:mrow><mml:mi>C</mml:mi><mml:mi>C</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.16</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-37"><mml:math id="mml-ieqn-37"><mml:mrow><mml:msub><mml:mi>g</mml:mi><mml:mrow><mml:mi>B</mml:mi><mml:mi>C</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.15</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-38"><mml:math id="mml-ieqn-38"><mml:mrow><mml:msub><mml:mi>g</mml:mi><mml:mrow><mml:mi>C</mml:mi><mml:mi>B</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.17</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-39"><mml:math id="mml-ieqn-39"><mml:mrow><mml:msub><mml:mi>k</mml:mi><mml:mn>1</mml:mn></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.1</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-40"><mml:math id="mml-ieqn-40"><mml:mrow><mml:msub><mml:mi>k</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.2</mml:mn></mml:math></inline-formula> and <inline-formula id="ieqn-41"><mml:math id="mml-ieqn-41"><mml:mrow><mml:msub><mml:mi>k</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.3.</mml:mn></mml:math></inline-formula>
<disp-formula id="eqn-3"><label>(3)</label><mml:math id="mml-eqn-3" display="block"><mml:mrow><mml:mo>{</mml:mo><mml:mrow><mml:mtable columnalign="left left" rowspacing="4pt" columnspacing="1em"><mml:mtr><mml:mtd><mml:mrow><mml:mstyle displaystyle="true" scriptlevel="0"><mml:mfrac><mml:mrow><mml:mrow><mml:msup><mml:mi>d</mml:mi><mml:mrow><mml:mn>0.5</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mi>C</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mi>d</mml:mi><mml:mrow><mml:msup><mml:mi>t</mml:mi><mml:mrow><mml:mn>0.5</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:mrow></mml:mfrac><mml:mo>=</mml:mo><mml:mo>&#x2212;</mml:mo><mml:mn>0.1</mml:mn><mml:mi>C</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo><mml:mo>+</mml:mo><mml:mn>0.12</mml:mn><mml:mi>B</mml:mi><mml:mrow><mml:msup><mml:mrow><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mn>0.15</mml:mn><mml:mrow><mml:mo>(</mml:mo><mml:mrow><mml:mn>1</mml:mn><mml:mo>+</mml:mo><mml:mn>0.2</mml:mn><mml:mstyle displaystyle="true" scriptlevel="0"><mml:mfrac><mml:mrow><mml:mi>T</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mrow><mml:msub><mml:mi>L</mml:mi><mml:mi>T</mml:mi></mml:msub></mml:mrow></mml:mrow></mml:mfrac></mml:mstyle></mml:mrow><mml:mo>)</mml:mo></mml:mrow></mml:mrow></mml:msup></mml:mrow><mml:mi>C</mml:mi><mml:mrow><mml:msup><mml:mrow><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mn>0.16</mml:mn><mml:mrow><mml:mo>(</mml:mo><mml:mrow><mml:mn>1</mml:mn><mml:mo>+</mml:mo><mml:mn>0.18</mml:mn><mml:mstyle displaystyle="true" scriptlevel="0"><mml:mfrac><mml:mrow><mml:mi>T</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mrow><mml:msub><mml:mi>L</mml:mi><mml:mi>T</mml:mi></mml:msub></mml:mrow></mml:mrow></mml:mfrac></mml:mstyle></mml:mrow><mml:mo>)</mml:mo></mml:mrow></mml:mrow></mml:msup></mml:mrow><mml:mo>,</mml:mo></mml:mstyle></mml:mrow></mml:mtd><mml:mtd><mml:mrow><mml:mrow><mml:msub><mml:mi>C</mml:mi><mml:mn>0</mml:mn></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.1</mml:mn><mml:mo>,</mml:mo></mml:mrow></mml:mtd></mml:mtr><mml:mtr><mml:mtd><mml:mrow><mml:mstyle displaystyle="true" scriptlevel="0"><mml:mfrac><mml:mrow><mml:mrow><mml:msup><mml:mi>d</mml:mi><mml:mrow><mml:mn>0.5</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mi>B</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mi>d</mml:mi><mml:mrow><mml:msup><mml:mi>t</mml:mi><mml:mrow><mml:mn>0.5</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:mrow></mml:mfrac><mml:mo>=</mml:mo><mml:mo>&#x2212;</mml:mo><mml:mn>0.25</mml:mn><mml:mi>B</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo><mml:mo>+</mml:mo><mml:mn>0.22</mml:mn><mml:mi>C</mml:mi><mml:mrow><mml:msup><mml:mrow><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mrow><mml:mo>(</mml:mo><mml:mrow><mml:mstyle displaystyle="true" scriptlevel="0"><mml:mfrac><mml:mrow><mml:mn>0.17</mml:mn></mml:mrow><mml:mrow><mml:mn>1</mml:mn><mml:mo>+</mml:mo><mml:mn>0.19</mml:mn><mml:mstyle displaystyle="true" scriptlevel="0"><mml:mfrac><mml:mrow><mml:mi>T</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mrow><mml:msub><mml:mi>L</mml:mi><mml:mi>T</mml:mi></mml:msub></mml:mrow></mml:mrow></mml:mfrac></mml:mstyle></mml:mrow></mml:mfrac></mml:mstyle></mml:mrow><mml:mo>)</mml:mo></mml:mrow></mml:mrow></mml:msup></mml:mrow><mml:mi>B</mml:mi><mml:mrow><mml:msup><mml:mrow><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mrow><mml:mo>(</mml:mo><mml:mrow><mml:mn>0.09</mml:mn><mml:mo>&#x2212;</mml:mo><mml:mn>0.1</mml:mn><mml:mstyle displaystyle="true" scriptlevel="0"><mml:mfrac><mml:mrow><mml:mi>T</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mrow><mml:msub><mml:mi>L</mml:mi><mml:mi>T</mml:mi></mml:msub></mml:mrow></mml:mrow></mml:mfrac></mml:mstyle></mml:mrow><mml:mo>)</mml:mo></mml:mrow></mml:mrow></mml:msup></mml:mrow><mml:mo>,</mml:mo></mml:mstyle></mml:mrow></mml:mtd><mml:mtd><mml:mrow><mml:mrow><mml:msub><mml:mi>B</mml:mi><mml:mn>0</mml:mn></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.2</mml:mn><mml:mo>,</mml:mo></mml:mrow></mml:mtd></mml:mtr><mml:mtr><mml:mtd><mml:mrow><mml:mstyle displaystyle="true" scriptlevel="0"><mml:mfrac><mml:mrow><mml:mrow><mml:msup><mml:mi>d</mml:mi><mml:mrow><mml:mn>0.5</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mi>T</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mi>d</mml:mi><mml:mrow><mml:msup><mml:mi>t</mml:mi><mml:mrow><mml:mn>0.5</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:mrow></mml:mfrac><mml:mo>=</mml:mo><mml:mn>0.22</mml:mn><mml:mi>T</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo><mml:mi>log</mml:mi><mml:mo>&#x2061;</mml:mo><mml:mrow><mml:mo>(</mml:mo><mml:mrow><mml:mstyle displaystyle="true" scriptlevel="0"><mml:mfrac><mml:mrow><mml:mn>100</mml:mn></mml:mrow><mml:mrow><mml:mi>T</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow></mml:mfrac></mml:mstyle></mml:mrow><mml:mo>)</mml:mo></mml:mrow><mml:mo>.</mml:mo></mml:mstyle></mml:mrow></mml:mtd><mml:mtd><mml:mrow><mml:mrow><mml:msub><mml:mi>T</mml:mi><mml:mn>0</mml:mn></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.3.</mml:mn></mml:mrow></mml:mtd></mml:mtr></mml:mtable></mml:mrow><mml:mo fence="true" stretchy="true" symmetric="true"></mml:mo></mml:mrow></mml:math></disp-formula></p></list-item>
<list-item><p><bold>Case 2:</bold> Implement the following FO bone disease related mathematical model with the suitable values <inline-formula id="ieqn-42"><mml:math id="mml-ieqn-42"><mml:mi>&#x03C4;</mml:mi><mml:mo>=</mml:mo><mml:mn>0.6</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-43"><mml:math id="mml-ieqn-43"><mml:mrow><mml:msub><mml:mi>&#x03B3;</mml:mi><mml:mi>T</mml:mi></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.22</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-44"><mml:math id="mml-ieqn-44"><mml:mrow><mml:msub><mml:mi>L</mml:mi><mml:mi>T</mml:mi></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.14</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-45"><mml:math id="mml-ieqn-45"><mml:mrow><mml:msub><mml:mi>&#x03B2;</mml:mi><mml:mi>B</mml:mi></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.25</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-46"><mml:math id="mml-ieqn-46"><mml:mrow><mml:msub><mml:mi>&#x03B2;</mml:mi><mml:mi>C</mml:mi></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.1</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-47"><mml:math id="mml-ieqn-47"><mml:mrow><mml:msub><mml:mi>&#x03B1;</mml:mi><mml:mi>B</mml:mi></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.22</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-48"><mml:math id="mml-ieqn-48"><mml:mrow><mml:msub><mml:mi>&#x03B1;</mml:mi><mml:mi>C</mml:mi></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.12</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-49"><mml:math id="mml-ieqn-49"><mml:mrow><mml:msub><mml:mi>r</mml:mi><mml:mrow><mml:mi>B</mml:mi><mml:mi>B</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.1</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-50"><mml:math id="mml-ieqn-50"><mml:mrow><mml:msub><mml:mi>r</mml:mi><mml:mrow><mml:mi>C</mml:mi><mml:mi>C</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.18</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-51"><mml:math id="mml-ieqn-51"><mml:mrow><mml:msub><mml:mi>r</mml:mi><mml:mrow><mml:mi>B</mml:mi><mml:mi>C</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.2</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-52"><mml:math id="mml-ieqn-52"><mml:mrow><mml:msub><mml:mi>r</mml:mi><mml:mrow><mml:mi>C</mml:mi><mml:mi>B</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.19</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-53"><mml:math id="mml-ieqn-53"><mml:mrow><mml:msub><mml:mi>g</mml:mi><mml:mrow><mml:mi>B</mml:mi><mml:mi>B</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.09</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-54"><mml:math id="mml-ieqn-54"><mml:mrow><mml:msub><mml:mi>g</mml:mi><mml:mrow><mml:mi>C</mml:mi><mml:mi>C</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.16</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-55"><mml:math id="mml-ieqn-55"><mml:mrow><mml:msub><mml:mi>g</mml:mi><mml:mrow><mml:mi>B</mml:mi><mml:mi>C</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.15</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-56"><mml:math id="mml-ieqn-56"><mml:mrow><mml:msub><mml:mi>g</mml:mi><mml:mrow><mml:mi>C</mml:mi><mml:mi>B</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.17</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-57"><mml:math id="mml-ieqn-57"><mml:mrow><mml:msub><mml:mi>k</mml:mi><mml:mn>1</mml:mn></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.1</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-58"><mml:math id="mml-ieqn-58"><mml:mrow><mml:msub><mml:mi>k</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.2</mml:mn></mml:math></inline-formula> and <inline-formula id="ieqn-59"><mml:math id="mml-ieqn-59"><mml:mrow><mml:msub><mml:mi>k</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.3.</mml:mn></mml:math></inline-formula>
<disp-formula id="eqn-4"><label>(4)</label><mml:math id="mml-eqn-4" display="block"><mml:mrow><mml:mo>{</mml:mo><mml:mrow><mml:mtable columnalign="left left" rowspacing="4pt" columnspacing="1em"><mml:mtr><mml:mtd><mml:mrow><mml:mstyle displaystyle="true" scriptlevel="0"><mml:mfrac><mml:mrow><mml:mrow><mml:msup><mml:mi>d</mml:mi><mml:mrow><mml:mn>0.6</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mi>C</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mi>d</mml:mi><mml:mrow><mml:msup><mml:mi>t</mml:mi><mml:mrow><mml:mn>0.6</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:mrow></mml:mfrac><mml:mo>=</mml:mo><mml:mo>&#x2212;</mml:mo><mml:mn>0.1</mml:mn><mml:mi>C</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo><mml:mo>+</mml:mo><mml:mn>0.12</mml:mn><mml:mi>B</mml:mi><mml:mrow><mml:msup><mml:mrow><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mn>0.15</mml:mn><mml:mrow><mml:mo>(</mml:mo><mml:mrow><mml:mn>1</mml:mn><mml:mo>+</mml:mo><mml:mn>0.2</mml:mn><mml:mstyle displaystyle="true" scriptlevel="0"><mml:mfrac><mml:mrow><mml:mi>T</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mrow><mml:msub><mml:mi>L</mml:mi><mml:mi>T</mml:mi></mml:msub></mml:mrow></mml:mrow></mml:mfrac></mml:mstyle></mml:mrow><mml:mo>)</mml:mo></mml:mrow></mml:mrow></mml:msup></mml:mrow><mml:mi>C</mml:mi><mml:mrow><mml:msup><mml:mrow><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mn>0.16</mml:mn><mml:mrow><mml:mo>(</mml:mo><mml:mrow><mml:mn>1</mml:mn><mml:mo>+</mml:mo><mml:mn>0.18</mml:mn><mml:mstyle displaystyle="true" scriptlevel="0"><mml:mfrac><mml:mrow><mml:mi>T</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mrow><mml:msub><mml:mi>L</mml:mi><mml:mi>T</mml:mi></mml:msub></mml:mrow></mml:mrow></mml:mfrac></mml:mstyle></mml:mrow><mml:mo>)</mml:mo></mml:mrow></mml:mrow></mml:msup></mml:mrow><mml:mo>,</mml:mo></mml:mstyle></mml:mrow></mml:mtd><mml:mtd><mml:mrow><mml:mrow><mml:msub><mml:mi>C</mml:mi><mml:mn>0</mml:mn></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.1</mml:mn><mml:mo>,</mml:mo></mml:mrow></mml:mtd></mml:mtr><mml:mtr><mml:mtd><mml:mrow><mml:mstyle displaystyle="true" scriptlevel="0"><mml:mfrac><mml:mrow><mml:mrow><mml:msup><mml:mi>d</mml:mi><mml:mrow><mml:mn>0.6</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mi>B</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mi>d</mml:mi><mml:mrow><mml:msup><mml:mi>t</mml:mi><mml:mrow><mml:mn>0.6</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:mrow></mml:mfrac><mml:mo>=</mml:mo><mml:mo>&#x2212;</mml:mo><mml:mn>0.25</mml:mn><mml:mi>B</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo><mml:mo>+</mml:mo><mml:mn>0.22</mml:mn><mml:mi>C</mml:mi><mml:mrow><mml:msup><mml:mrow><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mrow><mml:mo>(</mml:mo><mml:mrow><mml:mstyle displaystyle="true" scriptlevel="0"><mml:mfrac><mml:mrow><mml:mn>0.17</mml:mn></mml:mrow><mml:mrow><mml:mn>1</mml:mn><mml:mo>+</mml:mo><mml:mn>0.19</mml:mn><mml:mstyle displaystyle="true" scriptlevel="0"><mml:mfrac><mml:mrow><mml:mi>T</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mrow><mml:msub><mml:mi>L</mml:mi><mml:mi>T</mml:mi></mml:msub></mml:mrow></mml:mrow></mml:mfrac></mml:mstyle></mml:mrow></mml:mfrac></mml:mstyle></mml:mrow><mml:mo>)</mml:mo></mml:mrow></mml:mrow></mml:msup></mml:mrow><mml:mi>B</mml:mi><mml:mrow><mml:msup><mml:mrow><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mrow><mml:mo>(</mml:mo><mml:mrow><mml:mn>0.09</mml:mn><mml:mo>&#x2212;</mml:mo><mml:mn>0.1</mml:mn><mml:mstyle displaystyle="true" scriptlevel="0"><mml:mfrac><mml:mrow><mml:mi>T</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mrow><mml:msub><mml:mi>L</mml:mi><mml:mi>T</mml:mi></mml:msub></mml:mrow></mml:mrow></mml:mfrac></mml:mstyle></mml:mrow><mml:mo>)</mml:mo></mml:mrow></mml:mrow></mml:msup></mml:mrow><mml:mo>,</mml:mo></mml:mstyle></mml:mrow></mml:mtd><mml:mtd><mml:mrow><mml:mrow><mml:msub><mml:mi>B</mml:mi><mml:mn>0</mml:mn></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.2</mml:mn><mml:mo>,</mml:mo></mml:mrow></mml:mtd></mml:mtr><mml:mtr><mml:mtd><mml:mrow><mml:mstyle displaystyle="true" scriptlevel="0"><mml:mfrac><mml:mrow><mml:mrow><mml:msup><mml:mi>d</mml:mi><mml:mrow><mml:mn>0.6</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mi>T</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mi>d</mml:mi><mml:mrow><mml:msup><mml:mi>t</mml:mi><mml:mrow><mml:mn>0.6</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:mrow></mml:mfrac><mml:mo>=</mml:mo><mml:mn>0.22</mml:mn><mml:mi>T</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo><mml:mi>log</mml:mi><mml:mo>&#x2061;</mml:mo><mml:mrow><mml:mo>(</mml:mo><mml:mrow><mml:mstyle displaystyle="true" scriptlevel="0"><mml:mfrac><mml:mrow><mml:mn>100</mml:mn></mml:mrow><mml:mrow><mml:mi>T</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow></mml:mfrac></mml:mstyle></mml:mrow><mml:mo>)</mml:mo></mml:mrow><mml:mo>.</mml:mo></mml:mstyle></mml:mrow></mml:mtd><mml:mtd><mml:mrow><mml:mrow><mml:msub><mml:mi>T</mml:mi><mml:mn>0</mml:mn></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.3.</mml:mn></mml:mrow></mml:mtd></mml:mtr></mml:mtable></mml:mrow><mml:mo fence="true" stretchy="true" symmetric="true"></mml:mo></mml:mrow></mml:math></disp-formula></p></list-item>
<list-item><p><bold>Case 3:</bold> Consider a FO mathematical model based on the myeloma bone disease by using these values <inline-formula id="ieqn-60"><mml:math id="mml-ieqn-60"><mml:mi>&#x03C4;</mml:mi><mml:mo>=</mml:mo><mml:mn>0.7</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-61"><mml:math id="mml-ieqn-61"><mml:mrow><mml:msub><mml:mi>&#x03B3;</mml:mi><mml:mi>T</mml:mi></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.22</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-62"><mml:math id="mml-ieqn-62"><mml:mrow><mml:msub><mml:mi>L</mml:mi><mml:mi>T</mml:mi></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.14</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-63"><mml:math id="mml-ieqn-63"><mml:mrow><mml:msub><mml:mi>&#x03B2;</mml:mi><mml:mi>B</mml:mi></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.25</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-64"><mml:math id="mml-ieqn-64"><mml:mrow><mml:msub><mml:mi>&#x03B2;</mml:mi><mml:mi>C</mml:mi></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.1</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-65"><mml:math id="mml-ieqn-65"><mml:mrow><mml:msub><mml:mi>&#x03B1;</mml:mi><mml:mi>B</mml:mi></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.22</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-66"><mml:math id="mml-ieqn-66"><mml:mrow><mml:msub><mml:mi>&#x03B1;</mml:mi><mml:mi>C</mml:mi></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.12</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-67"><mml:math id="mml-ieqn-67"><mml:mrow><mml:msub><mml:mi>r</mml:mi><mml:mrow><mml:mi>B</mml:mi><mml:mi>B</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.1</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-68"><mml:math id="mml-ieqn-68"><mml:mrow><mml:msub><mml:mi>r</mml:mi><mml:mrow><mml:mi>C</mml:mi><mml:mi>C</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.18</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-69"><mml:math id="mml-ieqn-69"><mml:mrow><mml:msub><mml:mi>r</mml:mi><mml:mrow><mml:mi>B</mml:mi><mml:mi>C</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.2</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-70"><mml:math id="mml-ieqn-70"><mml:mrow><mml:msub><mml:mi>r</mml:mi><mml:mrow><mml:mi>C</mml:mi><mml:mi>B</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.19</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-71"><mml:math id="mml-ieqn-71"><mml:mrow><mml:msub><mml:mi>g</mml:mi><mml:mrow><mml:mi>B</mml:mi><mml:mi>B</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.09</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-72"><mml:math id="mml-ieqn-72"><mml:mrow><mml:msub><mml:mi>g</mml:mi><mml:mrow><mml:mi>C</mml:mi><mml:mi>C</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.16</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-73"><mml:math id="mml-ieqn-73"><mml:mrow><mml:msub><mml:mi>g</mml:mi><mml:mrow><mml:mi>B</mml:mi><mml:mi>C</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.15</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-74"><mml:math id="mml-ieqn-74"><mml:mrow><mml:msub><mml:mi>g</mml:mi><mml:mrow><mml:mi>C</mml:mi><mml:mi>B</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.17</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-75"><mml:math id="mml-ieqn-75"><mml:mrow><mml:msub><mml:mi>k</mml:mi><mml:mn>1</mml:mn></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.1</mml:mn></mml:math></inline-formula>, <inline-formula id="ieqn-76"><mml:math id="mml-ieqn-76"><mml:mrow><mml:msub><mml:mi>k</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.2</mml:mn></mml:math></inline-formula> and <inline-formula id="ieqn-77"><mml:math id="mml-ieqn-77"><mml:mrow><mml:msub><mml:mi>k</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.3.</mml:mn></mml:math></inline-formula>
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stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mi>d</mml:mi><mml:mrow><mml:msup><mml:mi>t</mml:mi><mml:mrow><mml:mn>0.7</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:mrow></mml:mfrac><mml:mo>=</mml:mo><mml:mn>0.22</mml:mn><mml:mi>T</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo><mml:mi>log</mml:mi><mml:mo>&#x2061;</mml:mo><mml:mrow><mml:mo>(</mml:mo><mml:mrow><mml:mstyle displaystyle="true" scriptlevel="0"><mml:mfrac><mml:mrow><mml:mn>100</mml:mn></mml:mrow><mml:mrow><mml:mi>T</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow></mml:mfrac></mml:mstyle></mml:mrow><mml:mo>)</mml:mo></mml:mrow><mml:mo>.</mml:mo></mml:mstyle></mml:mrow></mml:mtd><mml:mtd><mml:mrow><mml:mrow><mml:msub><mml:mi>T</mml:mi><mml:mn>0</mml:mn></mml:msub></mml:mrow><mml:mo>=</mml:mo><mml:mn>0.3.</mml:mn></mml:mrow></mml:mtd></mml:mtr></mml:mtable></mml:mrow><mml:mo fence="true" stretchy="true" symmetric="true"></mml:mo></mml:mrow></mml:math></disp-formula></p></list-item>
</list>
The numerical representations using the fractional mathematical bone disease model results are discussed using the LVMBPNN method with seven neurons and data selection as 82&#x0025;, 9&#x0025; and 9&#x0025; for training, certification, and testing. The structure of the input, hidden, and output neurons are depicted in <xref ref-type="fig" rid="fig-2">Fig. 2</xref>.</p>
<fig id="fig-2"><label>Figure 2</label><caption><title>Designed LVMBPNN method for the myeloma bone disease</title></caption><graphic mimetype="image" mime-subtype="png" xlink:href="CMC_31352-fig-2.png"/></fig>
<p><xref ref-type="fig" rid="fig-3 fig-4 fig-5">Figs. 3&#x2013;5</xref> depict the LVMBPNN-based fractional myeloma bone disease model. <xref ref-type="fig" rid="fig-3">Figs. 3</xref> and <xref ref-type="fig" rid="fig-4">4</xref> show the perfect EHs, curves, validations, and STs for the fractional-order derivative mathematical myeloma bone model. The best fractional-order mathematical bone disease model (BDM) results were obtained at epochs 46, 32, and 36, measured as 5.7193 &#x00D7;&#x2009;10<sup>&#x2212;09</sup>, 2.4386 &#x00D7;&#x2009;10<sup>&#x2212;09</sup>, and 1.1786 &#x00D7;&#x2009;10<sup>&#x2212;09</sup>, respectively. The gradient performances for cases 1, 2, and 3 are 9.9654&#x2009;&#x00D7;&#x2009;10<sup>&#x2212;08</sup>, 9.73 &#x00D7;&#x2009;10<sup>&#x2212;08</sup>, and 9.2864 &#x00D7;&#x2009;10<sup>&#x2212;08</sup>. The graphical methodologies indicate that the LVMBPNN method for solving the fractional MBD model converges. <xref ref-type="fig" rid="fig-4">Fig. 4</xref> depicts the numerical outcomes and EHs for the fractional-order mathematical bone disease using the LVMBPNN technique. The performances of the obtained and reference solutions have been compared to assess the correctness of the scheme. The fractional-order mathematical MBD model training, testing, and validation results are plotted. The second section of <xref ref-type="fig" rid="fig-4">Fig. 4</xref> discusses the EHs values, which are &#x2212;2.1 &#x00D7;&#x2009;10<sup>&#x2212;05</sup>, &#x2212;1.6 &#x00D7;&#x2009;10<sup>&#x2212;05</sup>, and &#x2212;1.2 &#x00D7;&#x2009;10<sup>&#x2212;05</sup> for cases 1&#x2013;3. <xref ref-type="fig" rid="fig-5">Fig. 5</xref> depicts the correlation techniques using the LVMBPNN method. The correlation for the fractional-order MBD system is one using the LVMBPNN method. The accuracy of the LVMBPNN method for the fractional-order mathematical model has been achieved through training, testing, and validation. <xref ref-type="table" rid="table-2">Tab. 2</xref> displays the MSE for the fractional model based on the verification, complexity, training, generations, and back propagation using the LVMBPNN method.</p>
<fig id="fig-3"><label>Figure 3</label><caption><title>MSE and STs performances for the fractional order system</title></caption><graphic mimetype="image" mime-subtype="png" xlink:href="CMC_31352-fig-3.png"/></fig><fig id="fig-4"><label>Figure 4</label><caption><title>Results and EHs performances for the fractional order system</title></caption><graphic mimetype="image" mime-subtype="png" xlink:href="CMC_31352-fig-4.png"/></fig><fig id="fig-5"><label>Figure 5</label><caption><title>Regression performances for the fractional-order system</title></caption><graphic mimetype="image" mime-subtype="png" xlink:href="CMC_31352-fig-5.png"/></fig><table-wrap id="table-2"><label>Table 2</label><caption><title>MSE performances based LVMBPNN for the fractional myeloma bone disease model</title></caption>
<table frame="hsides">
<colgroup>
<col align="left"/>
<col align="left"/>
<col align="left"/>
<col align="left"/>
<col align="left"/>
<col align="left"/>
<col align="left"/>
<col align="left"/>
<col align="left"/>
</colgroup>
<thead>
<tr>
<th align="left">Case</th>
<th align="left" colspan="3">MSE</th>
<th align="left">Performance</th>
<th align="left">Gradient</th>
<th align="left">Mu</th>
<th align="left">Epoch</th>
<th align="left">Time</th>
</tr>
<tr>
<th/>
<th align="left">[Training]</th>
<th align="left">[Verification]</th>
<th align="left">[Testing]</th>
<th/>
<th/>
<th/>
<th/>
<th/>
</tr>
</thead>
<tbody>
<tr>
<td align="left">I</td>
<td align="left">3.931&#x2009;&#x00D7;&#x2009;10<sup>&#x2212;09</sup></td>
<td align="left">5.719 &#x00D7;&#x2009;10<sup>&#x2212;09</sup></td>
<td align="left">1.12 &#x00D7;&#x2009;10<sup>&#x2212;09</sup></td>
<td align="left">3.93&#x2009;&#x00D7;&#x2009;10<sup>&#x2212;09</sup></td>
<td align="left">3.97 &#x00D7;&#x2009;10<sup>&#x2212;08</sup></td>
<td align="left">1 &#x00D7; 10<sup>&#x2212;10</sup></td>
<td align="left">46</td>
<td align="left">2 Sec</td>
</tr>
<tr>
<td align="left">2</td>
<td align="left">3.993&#x2009;&#x00D7;&#x2009;10<sup>&#x2212;09</sup></td>
<td align="left">2.438 &#x00D7;&#x2009;10<sup>&#x2212;09</sup></td>
<td align="left">1.52 &#x00D7;&#x2009;10<sup>&#x2212;09</sup></td>
<td align="left">3.99&#x2009;&#x00D7;&#x2009;10<sup>&#x2212;09</sup></td>
<td align="left">9.73 &#x00D7;&#x2009;10<sup>&#x2212;08</sup></td>
<td align="left">1 &#x00D7; 10<sup>&#x2212;10</sup></td>
<td align="left">32</td>
<td align="left">1 Sec</td>
</tr>
<tr>
<td align="left">3</td>
<td align="left">1.053&#x2009;&#x00D7;&#x2009;10<sup>&#x2212;09</sup></td>
<td align="left">1.178 &#x00D7;&#x2009;10<sup>&#x2212;09</sup></td>
<td align="left">9.79 &#x00D7;&#x2009;10<sup>&#x2212;09</sup></td>
<td align="left">1.05&#x2009;&#x00D7;&#x2009;10<sup>&#x2212;09</sup></td>
<td align="left">9.29 &#x00D7;&#x2009;10<sup>&#x2212;08</sup></td>
<td align="left">1 &#x00D7; 10<sup>&#x2212;11</sup></td>
<td align="left">36</td>
<td align="left">2 Sec</td>
</tr>
</tbody>
</table>
</table-wrap>
<p>The correctness of the proposed ANN-LMBP method for the fractional-order MBD model is observed in <xref ref-type="fig" rid="fig-6">Figs. 6</xref> and <xref ref-type="fig" rid="fig-7">7</xref> based on the comparison of the result and AE performances. The calculated form of the numerical solutions has been drawn to solve the nonlinear model using the LVMBPNN. The matching of the calculated and reference results has been illustrated in <xref ref-type="fig" rid="fig-6">Fig. 6</xref>. These plots present the precision of the LVMBPNN for the fractional myeloma bone disease model. The performances of the AE to solve the fractional MBD model using the stochastic paradigms are plotted in <xref ref-type="fig" rid="fig-7">Fig. 7</xref>. The AE is provided based on the OCs <inline-formula id="ieqn-78"><mml:math id="mml-ieqn-78"><mml:mi>C</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:math></inline-formula>, OBs <inline-formula id="ieqn-79"><mml:math id="mml-ieqn-79"><mml:mi>B</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:math></inline-formula> and tumor <inline-formula id="ieqn-80"><mml:math id="mml-ieqn-80"><mml:mi>T</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:math></inline-formula>. It is observed that the cases of OCs <inline-formula id="ieqn-81"><mml:math id="mml-ieqn-81"><mml:mi>C</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:math></inline-formula> lie around 10<sup>&#x2212;04</sup> to 10<sup>&#x2212;05</sup>, 10<sup>&#x2212;04</sup> to 10<sup>&#x2212;06</sup> and 10<sup>&#x2212;04</sup> to 10<sup>&#x2212;07</sup> for cases 1, 2, and 3. The AE for the OBs <inline-formula id="ieqn-82"><mml:math id="mml-ieqn-82"><mml:mi>B</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:math></inline-formula> lies around 10<sup>&#x2212;04</sup> to 10<sup>&#x2212;06</sup>, 10<sup>&#x2212;03</sup> to 10<sup>&#x2212;05</sup> and 10<sup>&#x2212;04</sup> to 10<sup>&#x2212;08</sup> for cases 1, 2 and 3. The AE for the tumor case <inline-formula id="ieqn-83"><mml:math id="mml-ieqn-83"><mml:mi>T</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>t</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:math></inline-formula> found 10<sup>&#x2212;04</sup> to 10<sup>&#x2212;07</sup>, 10<sup>&#x2212;04</sup> to 10<sup>&#x2212;06</sup>, and 10<sup>&#x2212;04</sup> to 10<sup>&#x2212;07</sup> for cases 1, 2 and 3. These best AE values represent the exactness of the proposed ANN-LMBP method for the fractional-order mathematical MBD model.</p>
<fig id="fig-6"><label>Figure 6</label><caption><title>Result comparisons for the fractional order MBD system</title></caption><graphic mimetype="image" mime-subtype="png" xlink:href="CMC_31352-fig-6a.png"/><graphic mimetype="image" mime-subtype="png" xlink:href="CMC_31352-fig-6b.png"/></fig><fig id="fig-7"><label>Figure 7</label><caption><title>AE values for solving the fractional order MBD system</title></caption><graphic mimetype="image" mime-subtype="png" xlink:href="CMC_31352-fig-7.png"/></fig>
</sec>
<sec id="s6"><label>6</label><title>Conclusion</title>
<p>The numerical representations of the bone remodeling-based MBD mathematical model are presented in this work. The goal of this study is to get a fractional-order study that focuses on the dynamics of bone remodeling based MBD mathematical models in order to get more accurate system performances. This study also included an integer nonlinear mathematical MBD system with a tumor effect. Based on fractional-order bone remodeling, the MBD mathematical system is divided into three dynamics: OCs (bone resorption), OBs (bone formation), and tumors. The stochastic performances of the MBD mathematical model based on fractional-order bone remodeling have not been introduced or calculated using the stochastic paradigms based on the LVMBPNN. For the fractional order MBD mathematical system, three variants with different values of the fractional order have been provided. The data applied to show the fractional-order MDB mathematical model results were divided as 82&#x0025; for training and 9&#x0025; for both testing and certification. The numerical performances of the fractional MBD system were presented using seven numbers of neurons. The statistical solutions of the fractional MBD system were compared to the results of the Adams&#x2013;Bashforth&#x2013;Moulton. The correctness of the schemes is performed based on the AE, which is calculated as 10<sup>&#x2212;04</sup> to 10<sup>&#x2212;06</sup> for each case of the model. The obtained results were performed using the LVMBPNN to reduce the MSE. The regression, STs, correlation, MSE, and EHs, were applied to validate the competence of LVMBPNN along with the numerical representations. The reference and obtained result&#x2019;s matching demonstrate the precision of the LMBS-NNs. The scheme&#x2019;s presentation is authenticated using the uniformity and dependability of the proposed LVMBPNN.</p>
<p>The LVMBPNN can be used in future work to present numerical measures of the fractional order systems, lonngren-wave, fluid mechanics systems, omics studies, and data security models [<xref ref-type="bibr" rid="ref-51">51</xref>&#x2013;<xref ref-type="bibr" rid="ref-62">62</xref>].</p>
</sec>
</body>
<back>
<fn-group>
<fn fn-type="other"><p><bold>Funding Statement:</bold> This research project is supported by Thailand Science Research and Innovation (TSRI). Contract No. FRB650059/NMA/10. The eighth author is supported by the NSRF via the Program Management Unit for Human Resources &#x0026; Institutional Development, Research and Innovation (grant number B05F640092).</p></fn>
<fn fn-type="conflict"><p><bold>Conflicts of Interest:</bold> The authors declare that they have no conflicts of interest to report regarding the present study.</p></fn>
</fn-group>
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