What are the current trends in temperature research in artificial knee joints?4 answersCurrent trends in temperature research in artificial knee joints include investigating the effect of component temperature on cement fixation strength during total knee arthroplasty (TKA). Another trend is studying peri-operative hypothermia in patients undergoing arthroplasty, with a focus on identifying the times of greatest heat loss or gain and factors associated with hypothermia. Additionally, research has been conducted on the heat generation of metallic implants during magnetic resonance imaging (MRI), particularly in relation to the specific absorption rate (SAR) of the MRI scanner and its impact on temperature rise in different types of artificial hip joints. Furthermore, studies have explored techniques to maximize cement penetration depth and density in the proximal tibia during TKA to potentially avoid early loosening, with a specific focus on investigating the cement bone interface temperatures using modern tibial cementing techniques.
How temperature impact on creativity test ?5 answersThe impact of temperature on creativity tests has been studied in several papers. One study found that warm light (3000 K) was associated with higher creativity, while colder light (4500 K, 6000 K) was associated with better concentration performance. Another study investigated the combined effects of illumination and color temperature on mood and creativity. It found that higher positive mood was associated with better performance on verbal creative tasks under certain lighting conditions (2000 lx, 6000 K and 300 lx, 3000 K), while the lowest positive mood was associated with better performance on figural creative tasks under different lighting conditions (2000 lx, 3000 K). These findings suggest that temperature, specifically in terms of color temperature, can have an impact on creativity test performance.
How does temperature affect cognitive performance and attention span in humans?4 answersTemperature has a significant impact on cognitive performance and attention span in humans. Exposure to elevated temperatures, such as during heat waves, can lead to a decline in cognitive performance and productivity, as well as an increase in mental fatigue and cognitive deficits. Studies have shown that cognitive performance decreases at higher temperatures, with objective metrics of cognitive performance decreasing by 10% at comfortably neutral temperatures (26°C) and 6% at comfortably warm temperatures (28°C). Furthermore, exposure to extreme high temperatures above 32°C has been found to result in a decline in math scores, particularly for older adults and those with lower education levels. Cold temperatures in traditionally warmer regions have also been associated with lower cognitive scores. These findings suggest that maintaining a comfortably cool environment is important for optimal cognitive functioning.
What is the effect of hypothermia on neurology?5 answersHypothermia has been shown to protect the brain from ischemia, stroke, and other acute neurological insults, improving neurological outcome in certain clinical settings such as anoxic brain injury and hypoxic-ischemic neonatal encephalopathy. It is a beneficial strategy in a variety of acute central nervous system injuries, reducing brain edema, oxidative stress, excitotoxicity, and intracranial pressure, while improving cerebral metabolism. Mild induced hypothermia results in improved myocardial salvage, reduced infarct size, and better long-term left ventricular function. Induction of mild hypothermia in the first hours after an ischemic event can prevent or mitigate permanent injuries, making it a promising treatment for postanoxic brain injury, stroke, and other indications. Hypothermia may preserve neuronal viability and increase the chances of survival and functional recovery in recovered cardiac arrests.
How does temperature affect on performence?5 answersTemperature has a significant effect on performance in various domains. In the context of labor productivity, studies have shown an inverse U-shaped relationship between temperature and productivity, with peak productivity occurring at around 24.90°C on average. Extreme temperatures, both hot and cold, have negative effects on cognitive and mental productivity, including cognition, learning, and customer orientation. In the field of elastohydrodynamic lubrication, temperature affects lubrication performance by inhibiting elastic deformation and impairing lubrication in the contact area. In office work, performance increases with temperature up to 21-22°C and decreases above 23-24°C, with the highest productivity observed at around 22°C. These findings highlight the importance of managing temperature conditions to optimize performance in various settings.
Do brightness and temperature affect on EEG?5 answersBrightness and temperature have been found to affect EEG activity. Studies have shown that changes in color temperature and brightness of light can lead to significant changes in alpha frequency, which is considered a candidate biological marker for cognitive function. Specifically, it has been observed that alpha power increases in warm, low-light conditions and cool, high-light conditions. Additionally, the power of brain responses in the parietal and occipital regions is influenced by changes in brightness, with an increase in brightness leading to an increase in average power for pleasant and neutral images, and a decrease in average power for unpleasant images. These findings suggest that brightness and temperature can modulate EEG activity, highlighting the importance of considering these factors in studies related to cognitive function and emotional image techniques.