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Effects of different types of Tai Chi intervention on motor function in older adults: a systematic review
Get PDFBackground: Tai Chi (TC) is widely acknowledged for its positive impact on improving motor function in older adults. Nevertheless, limited research has directly compared the effects of different TC styles on older adults with functional impairments.
Objective: This study aimed to assess the impact of different TC styles on motor function in older adults with functional impairments.
Method: We searched five databases—PubMed, Scopus, Chinese National Knowledge Infrastructure (CNKI), Web of Science, and Wiley Online Library—including studies published up to September 2024. The selection of literature adhered to PRISMA guidelines, with quality assessment independently carried out by two researchers.
Results: Fourteen studies met the inclusion criteria for this review. The analysis revealed that TC interventions for functionally impaired older adults primarily employed Yang-style, Sun-style, Chen-style, and simplified-style TC. The populations studied included individuals with mild cognitive impairment (MCI), nonspecific low back pain (NS-LBP), preclinical disabilities, chronic diseases, poor balance, osteoarthritis (OA), Parkinson’s disease (PD), sarcopenia, and those at risk of falls. The findings indicated that motor function in functionally impaired older adults were closely linked to balance, gait, mobility, strength, and fall rates. Among the various TC styles, Yang-style was the most frequently utilised intervention.
Conclusion: This review examined four types of TC interventions and found strong evidence supporting the effectiveness of Yang-style TC in improving motor function in older adults with functional impairments. Additionally, five assessment methods—Single-Leg Stance (SL), Six-Minute Walk Test (6MWT), Timed Up and Go Test (TUGT), Chair Stand Test (CST), and Fall Efficacy Scale (FES)—were identified as suitable for evaluating this population. Based on the findings, it is recommended that individuals with functional impairments engage in Yang-style 24-movement TC, with an intervention duration of 12 weeks, practicing two to five times a week for 60 min each session
Ternary hybrid nanofluid with first and second order velocity slips: dual solutions with stability analysis
Get PDFModeling the boundary layer flow of ternary hybrid nanofluids is important for understanding and optimizing their thermal performance, particularly in applications where enhanced heat transfer and fluid dynamics are essential. This study numerically investigates the boundary layer flow of alumina-copper-silver/water nanofluid over a permeable stretching/shrinking sheet, incorporating both first and second-order velocity slip. The mathematical model is solved in MATLAB facilitated by the bvp4c function that employs the finite difference scheme and Lobatto IIIa formula. The solver successfully generates dual solutions for the model, and further analysis is conducted to assess their stability. The findings reported that only one of the solutions is stable. For the shrinking sheet case, increasing the first-order velocity slip delays boundary layer separation and enhances heat transfer, while, when the sheet is stretched, the second-order velocity slip accelerates separation and improves heat transfer. Boundary layer separation is most likely to occur when the sheet is shrinking; however, this can be controlled by adjusting the velocity slip with the inclusion of boundary layer suction
Tugas saya bukan sekadar susun program pengajian kepada pelajar malah berperanan sebagai ‘kaunselor’ kerana mahu mereka berjaya – Ahmad Fouzi
Get PDFSERDANG, 15 Jun — “Tugas saya bukan sekadar menyusun program pengajian kepada pelajar, malah berperanan sebagai bapa penasihat program kerana mahu mereka berjaya,” kata Penolong Pegawai Tadbir Kanan di Bahagian Akademik, Universiti Putra Malaysia (UPM), Ahmad Fouzi Abd. Tahir, ketika ditemu bual baru-baru ini
Effect of salinity on nursery bi-culture of Pacific White Leg Shrimp (Litopenaeus vannamei) and Giant Prawn (Macrobrachium rosenbergii) in a biofloc system
Get PDFThe current study was carried out to examine the effects of four different experimental salinities (T1 = 0‰, T2 = 5‰, T3 = 10‰, and T4 = 15‰) on growth, water quality, proximate composition, total bacterial (TB), and hemocyte counts of white leg shrimp (Litopenaeus vannamei) and giant prawn (Macrobrachium rosenbergii) in biofloc based nursery bi-culture system for 6 weeks. A total of 12 cylindrical plastic tanks (125 L) filled up 100 L water for rearing L. vannamei and M. rosenbergii post-larvae (PLs) at an equal ratio: (50 L. vannamei: 50 M. rosenbergii). At the end of the experiment, for L. vannamei, the significantly higher (p < 0.05) growth rate was recorded in T4 (15‰) compared to the other treatments. For M. rosenbergii, a significantly higher (p < 0.05) growth rate was recorded in T2 (5‰) than in other treatments. Similar to growth, the best (p < 0.05) feed conversion ratio (FCR) for -L. vannamei was found at T4 (15‰) while it was at T2 (5‰) forM. rosenbergii. Gross return, net profit, and benefit–cost ratio (BCR) analysis revealed higher profit T4 (15‰) than T3 (10‰), T2 (5‰), and T1 (0‰). TB counts were found to be significantly greater (p < 0.05) in T4 than other treatments. Hemocyte counts for L. vannamei were significantly higher (p < 0.05) in T4 (15‰) than T3 (10‰), T2 (5‰), and T1 (0‰) and for M. rosenbergii hemocyte was significantly higher (p < 0.05) in T1 (0‰) than T2 (5 ‰), T3 (10 ‰), and T4 (15‰). Therefore, it can be suggested that 15‰ salinity will be the best condition for the nursery bi-culture of white leg shrimp (L. vannamei) and giant prawn (M. rosenbergii) in the biofloc system
Radiation and scattering by a multilayer uniaxial bianisotropic circular cylindrical scatterer
No full textThe eigenfunction solution of electromagnetic radiation and scattering from a multilayer uniaxial bianisotropic circular cylindrical scatterer is presented. The expressions for the electric and magnetic field equations are decomposed into transverse and longitudinal components. The boundary conditions are enforced by matching the transverse and axially directed fields at the interfaces between regions with different constitutive parameters. Matrices are constructed from the linear algebraic equations to solve the unknown series coefficients. On the one hand, numerical results are presented for the near zone fields and radar cross section in the two dimensional case. On the other hand, numerical solutions are presented for the radiation pattern when a dipole is present in the vicinity of the cylindrical scatterer in the three dimensional case. Results obtained using the eigenfunction series for the multilayer uniaxial bianisotropic circular cylindrical scatterer are in excellent agreement with results in existing literature and solutions computed using other formulations
Thermal energy environment cycle based on virtual image technology application in urban green environment space planning and design
No full textThis study discussed the application of thermal energy environmental cycle based on virtual image technology in urban green environment spatial planning and design, collected urban meteorological data, geographic information data and urban heat island effect related research data, and used virtual image technology to build a three-dimensional city model to simulate the thermal energy environmental cycle under different design schemes. The effect of urban heat island was simulated by computer simulation software, and the influence of different urban structure and greening on thermal energy environment was analyzed. According to the simulation results, the urban green space layout scheme was designed to optimize the circulation path of thermal energy environment. The results show that virtual image technology has high accuracy and practicability in simulating urban thermal environment. Through the simulation analysis, we found that urban green space layout, building height and density, and urban water body configuration have significant effects on the thermal energy environmental cycle. Based on these findings, the urban green space scheme designed can effectively alleviate the urban heat island effect and improve the quality of urban thermal environment. Therefore, the rational use of virtual image technology for urban planning can significantly improve the quality of urban thermal environment and provide strong support for urban sustainable development
Academician: netizens' low approval rating for 15 our of 18 Dayak ministers, deputy ministers "should serve as wake up call"
Get PDFA simple, random survey among netizens on how they viewed the performance of their ministers, deputy ministers in the Madani government
Gawai Dayak kekal sebagai upacara keagamaan meskipun sambutan berubah ikut masa: Jayum
Get PDFGawai dan makna gawai dari sudut asal upacara ini disambut masyarakat Dayak. Ia adalah upacara keagamaan berkaitan penanam padi dan majlis kesyukuran kerana limpha rezseki diberi "petara