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HDPE is known for its high strength-to-density ratio. [4] The density of HDPE ranges from 930 to 970 kg/m 3. [5] Although the density of HDPE is only marginally higher than that of low-density polyethylene, HDPE has little branching, giving it stronger intermolecular forces and tensile strength (38 MPa versus 21 MPa) than LDPE. [6]
An excessive amount of nicotine for an adult that is capable of being fatal is 0.5–1 mg/kg of body weight. [65] An oral lethal dose for adults is about 30–60 mg. [19] However the widely used human LD 50 estimate of around 0.8 mg/kg was questioned in a 2013 review, in light of several documented cases of humans surviving much higher doses ...
Falls are the leading cause of emergency department admissions and hospitalizations in adults age 65 and older, many of which result in significant injury and permanent disability. [15] As certain risk factors can be modifiable for the purpose of reducing falls, this highlights an opportunity for intervention and risk reduction.
However, scientists aren’t entirely sure what the exact cause is, especially because it seems that some groups of people, such as those with heart disease, may have their muscles weakened by ...
Plaque build-up often doesn’t cause symptoms, but it can block blood flow to vital organs like your heart. Coronary artery disease occurs when atherosclerosis affects the arteries supplying ...
Symptoms may include skin that feels tight, the area feeling heavy, and joint stiffness. [1] Other symptoms depend on the underlying cause. [2] Causes may include venous insufficiency, heart failure, kidney problems, low protein levels, liver problems, deep vein thrombosis, infections, kwashiorkor, angioedema, certain medications, and lymphedema.
A cross-linked polyethylene (PEX) pipe. Cross-linked polyethylene, commonly abbreviated PEX, XPE or XLPE, is a form of polyethylene with cross-links.It is used predominantly in building services pipework systems, hydronic radiant heating and cooling systems, domestic water piping, insulation for high tension (high voltage) electrical cables, and baby play mats.
JoAnn Pushkin, patient advocate and co-founder of DenseBreast-info.org, lived through this exact scenario. "My own cancer was missed for nearly five years in a row," she says.