The Effect of a Creative Dance-Supported CO-OP Approach on Executive Functions, Attention, Memory, and Dual-Task Performance in Older Adults With Mild Cognitive Impairment: A Randomized Controlled Trial

The goal of this clinical trial is to evaluate if the CO-OP (Cognitive Orientation to daily Occupational Performance) approach, supported by creative dance, can improve cognitive functions in older adults with mild cognitive impairment (MCI). The study focuses on the effects of this intervention on executive functions, attention, memory, and dual-task performance.
The main questions this study aims to answer are:
Does the CO-OP approach with creative dance improve executive functions, attention, and memory more than CO-OP alone? How effective is this intervention in enhancing dual-task performance compared to the standard CO-OP approach?
Participants will:
Engage in either the CO-OP intervention alone or the CO-OP approach combined with creative dance for 8 weeks.
Complete cognitive tasks, participate in creative dance activities, and perform daily tasks during the sessions.

开始日期2024-11-15

申办/合作机构

Çankırı Karatekin University

NCT06563154 / Not yet recruitingN/AIIT

Investigation of the Relationship Between Exercise Capacity, Physical Fitness, Quality of Life, Physical Activity Level, Cognitive Status and Health Literacy in Individuals Diagnosed With Dyslipidemia

There is insufficient literature explaining the relationship between exercise capacity and physical fitness of dyslipidemia patients and quality of life, cognitive status and health literacy. Our aim with this study is to provide more information to the scientific literature about the relationship between exercise capacity and physical fitness and quality of life and health literacy in dyslipidemia patients.

开始日期2024-09-15

申办/合作机构

Çankırı Karatekin University

[+1]

NCT06584968 / CompletedN/AIIT

Improving the Application Skill of Semmes-Weinstein Monofilament Test with Different Teaching Methods: a Randomized Controlled Trial

The Semmes-Weinstein Monofilament Test is one of the most widely used and objective clinical tests for assessing the sense of touch. Some guides include standard instructions for the application of the Semmes-Weinstein Monofilament Test. With monofilaments applied correctly by the instructions, patients' threshold values can be determined accurately. However, there are disagreements about the accuracy of the pressure applied by the therapist who applies the monofilament to the patient. The investigators aimed to compare the application of the Semmes-Weinstein Monofilament Test to undergraduate students of the occupational therapy department by teaching it using classical methods and visual feedback.

开始日期2024-09-10

申办/合作机构

Hacettepe University

[+1]

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2024-12-31·Energy Sources, Part A: Recovery, Utilization, and Environmental Effects

Heat transfer characteristics of pulsating flow in a straight channel with rhombic-shaped expanding chamber: A numerical study

作者: Akcay, Selma

The combination of passive and active heat transfer recovery techniques in channel flows has significant potential in terms of increasing thermal performance.Therefore, this study focused on the numerical examination of the flow and thermal behavior of pulsating flow in a straight duct containing a rhombus chamber.In the context of the study, iterations were solved using the finite volume method (FVM).The study was carried out for different pulsating amplitudes (A: 0.2, 0.4, 0.6, and 0.8), Strouhal numbers (St: 1, 2, 3, 4), and Reynolds numbers (200 ≤ Re ≤ 800).The surfaces other than the adiabatic lengths at the inlet and outlet of the duct were kept constant at T_w = 360 K.Results were compared with the results of the steady flow case.The effects of pulsating velocity and oscillatory parameters on Nusselt number, pressure drop, and performance factor were discussed.Velocity and temperature images were presented for different Reynolds numbers and pulsating components in the channel.The findings revealed that although the pulsating parameters significantly enhanced the heat transfer at increasing Reynolds numbers, they had a fairly low effect on heat transfer at the same Reynolds numberIt was observed that at Re = 800, the Nusselt number formed a peak at St = 3 for all tested pulsating amplitudes.For the parameters of Re = 800, A = 0.6, and St = 2, heat transfer and performance factor in pulsating flow increased by 8.96 and 8.22 times, resp., compared to steady flow conditions.

2024-12-31·Energy Sources, Part A: Recovery, Utilization, and Environmental Effects

Hydrogen generation from methanolysis of sodium borohydride using boric acid as a catalyst

作者: Akin, M. Bora

Hydrogen plays a critical role in reducing dependence on fossil fuels and combating climate change as a clean, highly efficient, and renewable energy source.In this study, hydrogen production via methanolysis of sodium borohydride (NaBH₄) has been investigated in the presence of boric acid (H₃BO₃) catalyst.The effect of various parameters on hydrogen generation rate has been reported and the effect of temperature, H₃BO₃ catalyst concentration, methanol volume and NaBH₄ concentration has been studied in the range of 20-50°C, 0.539-2.695 mM, 2-20 mL, and 0.176-0.881 mM, resp.The kinetic parameters are estimated with the power law model and the reaction order and activation energy are found as 2 and 33.25 kJ·mol^-1, resp.The highest hydrogen generation rate (HGR) is achieved as 628,117 mL·min^-1·g cat^-1 at 50°C with 1.078 mM H₃BO₃ and 0.352 M NaBH₄ concentrations and 15 mL methanol volumeThis study′s notable result is the emphasis on the effect of using a very small amount of boric acid.Because the use of a high amount of boric acid as a catalyst causes steric hindrance in the methanolysis reaction of tri-Me borate, which is the product of the equilibrium reaction between boric acid and excess alc. in the solutionThis situation has been avoided by using a lower amount of boric acid.Thus, it demonstrates that environmentally friendly, efficient, and cost-effective boric acid has great potential in hydrogen production via methanolysis and that its performance can be further improved with more work on the optimization of catalyst concentration

2024-12-31·International Journal of Ambient Energy

Investigating reaction conditions and kinetics for hydrogen production through boric acid catalysed methanolysis of potassium borohydride

作者: Şahin, Ömer ; Bora Akın, Muhammed

This study explores hydrogen production via methanolysis of potassium borohydride (KBH₄) catalyzed by boric acid (H₃BO₃) amidst growing demand for sustainable energy.It focuses on optimizing reaction conditions to efficiently maximise hydrogen output.Parameters examined include reaction temperatures (20, 30, 40, 50°C), H₃BO₃ concentrations (53.9, 107.8, 161.7, 269.5 mM), methanol volumes (2, 5, 7, 15, 20 mL), and KBH₄ concentrations (0.124, 0.247, 0.371, 0.618 M), assessing their impact on hydrogen generation rates (HGRs).Kinetic anal. shows the reaction follows a power law mechanism with a reaction order of 0.5 for KBH₄, indicating a significant concentration dependency.The study identifies activation energies of 37.24 and 32.54 kJ·mol^-1, providing insights into the energy barrier of the reaction, and finds optimal conditions at 30°C, achieving a remarkable HGR of 3154.98 mL·min^-1·g cat^-1. ΔG°, ΔH_ads and ΔS° were also determined, further elucidating the reaction dynamics.

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