Article of the Year 2020
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Applied Bionics and Biomechanics publishes original research articles as well as review articles that seek to understand the mechanics of biological systems, or that use the functions of living organisms as inspiration for the design of new devices.
Chief Editor, Professor Qiguo Rong, is the Vice Chair of the Department of Mechanics and Engineering Science at Peking University, China. His research focuses on the biomechanical behaviors of musculoskeletal systems.
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Quantifying the Elasticity Properties of the Median Nerve during the Upper Limb Neurodynamic Test 1
Background. The upper limb neurodynamic test 1 (ULNT1) consists of a series of movements that are thought to detect an increase in neuromechanical sensitivity. In vivo, no trail was made to quantify the association between the nerve elasticity and different limb postures during ULNT1. Objectives. (1) To investigate the relationship between nerve elasticity and limb postures during ULNT1 and (2) to investigate the intra- and interoperator reliabilities of shear wave elastography (SWE) in quantifying the elasticity of median nerve. Methods. Twenty healthy subjects (mean age: years old) participated in this study. The median nerve was imaged during elbow extension in the following postures: (1) with neutral posture, (2) with wrist extension (WE), (3) with contralateral cervical flexion (CCF), and (4) with both WE and CCF. The intra- and interoperator reliabilities measured by two operators at NP and CCF+WE and intraclass correlation coefficients (ICCs) were calculated. Results. The intraoperator () and interoperator () reliabilities for measuring the elasticity of the median nerve ranged from good to excellent. The mean shear modulus of the median nerve increased by 53.68% from NP to WE+CCF. Conclusion. SWE is a reliable tool to quantify the elasticity of the median nerve. There was acute modulation in the elasticity of the median nerve during the ULNT1 when healthy participants reported substantial discomfort. Further studies need to focus on the elasticity properties of the median nerve in patients with peripheral neuropathic pain.
Analysis of the Reform Effectiveness of Vocational Skill Identification Based on the New Social Training Model in the New Era under Deep Learning Assessment
In order to be able to make full use of domain knowledge to improve the performance of skill word extraction, this paper proposes a skill word extraction method based on a combination of deep learning and corpus features. Skill word extraction is transformed into a sequence annotation problem, and based on the basic model of sequence annotation, Bi-LSTM-CRF, corpus features are added to the input layer, and the output of the input layer is connected with the Bi-LSTM output as the input of the CRF layer. The experimental results show timely updating of the question bank, paying attention to the quality of vocational skill identification, and strictly managing the issuance of vocational qualification false certificates.
Impact of Cluster Nursing on Nursing on VAS Score and Urinary Function of Patients after Percutaneous Nephrolithotomy with Pneumatic Lithotripsy (PCNL)
Objective. To explore the effects of cluster nursing on VAS score and urinary system function of patients after percutaneous nephrolithotomy with pneumatic lithotripsy (PCNL). Methods. November 2019-January 2019, 114 patients with PCNL who received treatment in our hospital were selected and randomly divided into two groups: the control group and the study group. The study group received cluster nursing, and the control group received routine nursing. Compare the Barthel index (BI), between two groups, SAS score, complications rate, surgical outcomes, pain scores, quality of life scores, knowledge awareness rate, and satisfaction rate were compared. Results. There were no significant variations in Bi and SAS scores before the nursing (). The BI ratings were clearly higher after nursing, whereas the SAS and pain levels were considerably lower, however, the research group altered more dramatically (). The study group’s incidence of complications was lower () than the control group’s; the study group’s hospitalization cost was lower, and the hospitalization and lower bed activity were shorter (); after the nursing, the organised quality score was significantly higher in both groups, but the research group changed more dramatically (). Compared with the control group, the knowledge of the research team was higher (); after the nursing, both group satisfaction scores were obviously high, but the study group changes more significantly (). Conclusion. After PCNL treatment, the patient receives cluster therapy, improving the patient’s anxiety, reducing the degree of pain, and improving the quality of life in patients, and the patient satisfaction is high. Therefore, cluster nursing is worthy of extensive application in the postoperative care of patients with PCNL.
The Skill Training of Reading Music in the Teaching of Solfeggio and Ear Training in the New Media Environment
Culture is a powerful spiritual force rooted in the hearts of the Chinese people and guides the direction of the Chinese people. Sight singing and ear training are playing an increasingly important role as an important means of music teaching. The article is aimed at studying the latest application progress of music reading skills in audiovisual ear training in the new media environment. This paper proposes the interactive application of music reading skills that integrate new media to realize the interactive communication between man and machine. The experimental results of this paper show that new media can make greater use of the advantages of music reading skills, enhance students’ musical sensitivity by 20%, and realize musical interaction.
Comparative Study on the Clinical Efficacy and Safety of Acitretin and MTX in the Treatment of Pustular Psoriasis by TLR7/MyD88/CXCL16 Pathway
Objective. To investigate the clinical efficacy and safety of acitretin and MTX with TLR7/MyD88/CXCL16 in the treatment of pustular psoriasis. Method. A total of 54 patients with pustular psoriasis were randomly divided into control group () and study group (). MTX was used in the control group, and different doses of acitretin were used in the study group, which were divided into low-dose group (), medium-dose group (), and high-dose group (). Symptom relief time, recurrence rate, GPPASI improvement rate, treatment response rate, BSA, DLQI score, and TLR7 and CXCL16 levels were compared among four groups. Result. The erythema, fever, and pustules disappeared in the low-dose group, the medium-dose group, and the high-dose group for a shorter time than control group, and it is shortest for the high-dose group. The low-dose, medium-dose, and high-dose groups had relatively lower recurrence rates at 1 month and 3 months (). The improvement rates of GPPASI50 of the four groups (the control group, low-dose group, medium-dose group, and high-dose group in turn) were 71.4%, 78.3%, 80.2%, and 80.8%; GPPASI75 of the four groups were 73.5%, 74.3%, 79.4%, and 80.9%; and GPPASI90 were 12.9%, 13.1%, 13.4%, and 13.8%. After treatment, the BSA and DLQI scores of the four groups were reduced. The BSA and DLQI scores of the study group decreased more significantly, and the high-dose group had the most significant improvement (). The incidence of adverse reactions in the four groups was 16.2%, 8.1%, 10.3%, and 14.7%, respectively. The high-dose group had a higher incidence of adverse reaction than the low-dose group (). The effective rates of treatment of the four groups were 69.1%, 86.9%, 88.2%, and 91.9%, respectively. The study group had higher treatment efficiency than the control group, and the high-dose group had the highest treatment efficiency (). After treatment, the level of serum TLR7 and CXCL16 was significantly reduced, but which in the study group decreased more significantly (). Conclusion. The clinical effect of a high dose of acitretin on pustular psoriasis is remarkable. It can reduce the recurrence rate and improve the quality of life and clinical symptoms. Therefore, a high dose of acitretin is worth popularizing and applying.
Effect of Extended Lipid Core on the Hemodynamic Parameters: A Fluid-Structure Interaction Approach
Myocardial infarction is one of the leading causes of death in the developed countries. A majority of myocardial infarctions are caused by the rupture of coronary artery plaques. In order to achieve a better understanding of the effect of the extension of the lipid core into the artery wall on the change of flow field and its effect on plaque vulnerability, we have studied the hemodynamic parameters by utilizing a finite element method and taking into account the fluid-structure interaction (FSI). Four groups of stenosis models with different sizes of lipid core were used in the study. The fully developed pulsatile velocity profile of the right coronary artery was used as the inlet boundary condition, and the pressure pulse was applied as the outlet boundary condition. The non-Newtonian Carreau model was used to simulate the non-Newtonian behavior of blood. Results indicate that the extension of the lipid core into the artery wall influences the flow field; subsequently, creates favorable conditions for additional development of the lipid core which can lead to a higher risk of plaque rupture.