Humans cannot digest cellulose due to the absence of the enzyme cellulase, which is necessary to break down cellulose into glucose molecules. Cellulose, a polysaccharide carbohydrate, is the main constituent of plant cell walls and is considered dietary fiber for humans. While it passes through our digestive system mostly intact, cellulose plays an essential role in maintaining healthy digestion by promoting bowel regularity. In contrast, some animals, particularly ruminants like cows and termites, have symbiotic microorganisms in their digestive systems that produce cellulase, enabling them to digest cellulose and derive nutrients from it. For humans, though indigestible, cellulose intake is still crucial for a balanced diet, as it aids in digestion, helps to regulate blood sugar levels, and is linked to a reduced risk of certain diseases.

Wearable yarn-based piezoresistive sensors are innovative devices designed to convert mechanical deformation into electrical signals using the piezoresistive effect of materials. Such sensors are often woven into textiles or garments to monitor and record physical activity or health-related metrics such as heart rate, muscle movement, and even the structural integrity of garments. These sensors are highly flexible, lightweight, and can be seamlessly integrated into fabrics, making them ideal for wearable technology applications. They provide real-time data in a non-invasive manner, offering a promising avenue for advanced health monitoring and interactive clothing. The materials used are typically conductive polymers or carbon-based composites, known for their sensitivity to strain and durability. This technology has great potential not only in the healthcare sector for patient monitoring, but also in sports science, rehabilitation, and smart textile innovations. Its development is critical to the advancement of the wearable technology industry, pushing the boundaries of how we interact with clothing and electronic devices.

Opening a PVC cement can requires a few careful steps. First, ensure you’re in a well-ventilated area to avoid inhaling fumes. Next, wear gloves to protect your skin from the potent chemicals. PVC cement cans usually have a screw top lid with a dauber attached. Grip the can firmly with one hand and use the other to twist the lid counter-clockwise. If the lid is stuck due to dried cement, gently tapping the lid’s edges with a tool like a screwdriver can help break the seal. However, avoid using excessive force to prevent damaging the lid. Once opened, apply the cement as directed, and ensure to reseal the can tightly after use to prevent the solvent from evaporating and the cement from drying out.