91 research outputs found
Exploring noise-induced chaos and complexity in a red blood cell system
We investigate dynamical changes and its corresponding phase space complexity
in a stochastic red blood cell system. The system is obtained by incorporating
power noise with the associated sinusoidal flow. Both chaotic and non-chaotic
dynamics of sinusoidal flow in red blood cell are identified by 0-1 test.
Furthermore, dynamical complexity of the sinusoidal flow in the system is
investigated by heterogeneous recurrence based entropy. The numerical
simulation is performed to quantify the existence of chaotic dynamics and
complexity for the sinusoidal blood flow.Comment: 10 page
Biokinetic Mechanisms Linked With Musculoskeletal Health Disparities: Stochastic Models Applying Tikhonov\u27s Theorem to Biomolecule Homeostasis.
Multiscale technology and advanced mathematical models have been developed to control and characterize physicochemical interactions, respectively, enhancing cellular and molecular engineering progress. Ongoing tissue engineering development studies have provided experimental input for biokinetic models examining the influence of static or dynamic mechanical stimuli (Saha, A. K., and Kohles, S. S., 2010, âA Distinct Catabolic to Anabolic Threshold Due to Single-Cell Nanomechanical Stimulation in a Cartilage Biokinetics Model,â J. Nanotechnol. Eng. Med., 1(3) p. 031005; 2010, âPeriodic Nanomechanical Stimulation in a Biokinetics Model Identifying Anabolic and Catabolic Pathways Associated With Cartilage Matrix Homeostasis,â J. Nanotechnol. Eng. Med., 1(4), p. 041001). In the current study, molecular regulatory thresholds associated with specific disease disparities are further examined through applications of stochastic mechanical stimuli. The results indicate that chondrocyte bioregulation initiates the catabolic pathway as a secondary response to control anabolic processes. In addition, high magnitude loading produced as a result of stochastic input creates a destabilized balance in homeostasis. This latter modeled result may be reflective of an injurious state or disease progression. These mathematical constructs provide a framework for single-cell mechanotransduction and may characterize transitions between healthy and disease states
A novel implementation of Petrov-Galerkin method to shallow water solitary wave pattern and superperiodic traveling wave and its multistability: generalized Korteweg-de Vries equation
This work deals with the constitute of numerical solutions of the generalized Korteweg-de Vries (GKdV) equation with Petrov-Galerkin finite element approach utilising a cubic B-spline function as the trial function and a quadratic function as the test function. Accurateness and effectiveness of the submitted methods are shown by employing propagation of single solitary wave. The L2, Lâerror norms and I1, I2and I3invariants are used to validate the applicability and durability of our numerical algorithm. Implementing the Von-Neumann theory, it is manifested that the suggested method is marginally stable. Furthermore, supernonlinear traveling wave solution of the GKdV equation is presented using phase plots. It is seen that the GKdV equation supports superperiodic traveling wave solution only and it is significantly affected by velocity and nonlinear parameters. Also, considering a superficial periodic forcing multistability of traveling waves of perturbed GKdV equation is presented. It is found that the perturbed GKdV equation
supports coexisting chaotic and various quasiperiodic features with same parametric values at different initial condition
Coronary atheroma [14 cm] extracted from the right coronary artery during off-pump coronary artery bypass graftingÂ
Coronary endarterectomy is a good option for surgical revascularization in diffusely coronary artery disease. In coronary artery bypass surgery, a diffusely diseased right coronary artery is an obstruction to accomplishing complete myocardial revascularization, subsequently increasing the likelihood of a poor postoperative prognosis. Here, we report a case of extraction of a long segment coronary atheroma (14 cm) from right coronary artery during off-pump coronary artery bypass grafting using closed endarterectomy technique followed by reconstruction with saphenous venous graft
Cytoskeletal Strains in Modeled Optohydrodynamically Stressed Healthy and Diseased Biological Cells
Coronary atheroma [14 cm] extracted from the right coronary artery during off-pump coronary artery bypass graftingÂ
Coronary endarterectomy is a good option for surgical revascularization in diffusely coronary artery disease. In coronary artery bypass surgery, a diffusely diseased right coronary artery is an obstruction to accomplishing complete myocardial revascularization, subsequently increasing the likelihood of a poor postoperative prognosis. Here, we report a case of extraction of a long segment coronary atheroma (14 cm) from right coronary artery during off-pump coronary artery bypass grafting using closed endarterectomy technique followed by reconstruction with saphenous venous graft
Health-related quality of life following heart surgery
This study evaluates the differences in preoperative and postoperative health-related quality of life of the patients following heart surgery and observed the factors that influence quality of life changes. This prospective observational study involved two parameters from the SF-36 questionnaire before and one year after heart surgery in a single surgeonâs practice. At the baseline assessment of the study observed 140 patients, predominantly were male in both study groups. The mean age was 56.8 ± 4.2 years, 64.7 ± 7.4 years in Group of patients age †60 years and age >60 yearâs respectively. In elderly aged group, patients have greater risk of co-morbidity, operative complications, and low preoperative as well as postoperative quality of life score. There was an overall improvement in all majority health domains of the SF-36 questionnaire among study population. Statistical results from Logistic multivariate analysis demonstrates a greater value of preoperative mental component summary scores (p=0.08), and physical component summary scores (p=0.01) as potential risk factors for non-improvement following heart surgery. Although, elderly patients (age >60 yearâs) with greater operative risk have low preoperative quality of life score, but demonstrate an equal improvement in most of the health domains following heart surgery as like as younger study population
Off pump coronary artery bypass grafting in awake patient
This article has no abstract. The first 100 words appear below:
A 60-year-old male patient was admitted into the department as a diagnosed case of ischemic heart disease and his coronary angiogram reveals triple vessel disease (80-90% lesion in the mid part of left anterior descending artery; 90% lesion in the distal part of obtuse marginal and 99% stenosis in the distal part of right coronary artery). The patient was suffering from chest pain for last 3 months which aggravated by exertion and radiates along the neck and left arm. The patient was non-diabetic and non-hypertensive
Off pump coronary artery bypass grafting in awake patient
This article has no abstract. The first 100 words appear below:
A 60-year-old male patient was admitted into the department as a diagnosed case of ischemic heart disease and his coronary angiogram reveals triple vessel disease (80-90% lesion in the mid part of left anterior descending artery; 90% lesion in the distal part of obtuse marginal and 99% stenosis in the distal part of right coronary artery). The patient was suffering from chest pain for last 3 months which aggravated by exertion and radiates along the neck and left arm. The patient was non-diabetic and non-hypertensive
Coronary atheroma [14 cm] extracted from the right coronary artery during off-pump coronary artery bypass graftingÂ
Coronary endarterectomy is a good option for surgical revascularization in diffusely coronary artery disease. In coronary artery bypass surgery, a diffusely diseased right coronary artery is an obstruction to accomplishing complete myocardial revascularization, subsequently increasing the likelihood of a poor postoperative prognosis. Here, we report a case of extraction of a long segment coronary atheroma (14 cm) from right coronary artery during off-pump coronary artery bypass grafting using closed endarterectomy technique followed by reconstruction with saphenous venous graft
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