Given a passage and a query based on the passage, generate an unambiguous, concise and simple answer to the query from information in the passage. Note that the answer may not be present in exact form.

[EX Q]: protect the brain from stroke and ischemic insults…In addition, Astaxanthin showed neuroprotective effects at relatively high doses by preventing the ischemia-induced impairment of spatial memory in mice. Benefits of taking the natural pigment astaxanthin: New light shed on neurogenesis, molecular basis for promotion of spatial memory capacity. ScienceDaily. ScienceDaily, 22 February 2016. <www.sciencedaily.com/releases/2016/02/160222090848.htm>. suggest that Astaxanthin can attenuate the development of hypertension and may help to protect the brain from stroke and ischemic insults…In addition, Astaxanthin showed neuroprotective effects at relatively high doses by preventing the ischemia-induced Astaxanthin is a carotenoid and potent antioxidant that helps reduce damage from sun exposure, improves skin health, reduces inflammation and more. Astaxanthin is a carotenoid and potent antioxidant that helps reduce damage from sun exposure, improves skin health, reduces inflammation and more. Skip to primary navigation Skip to content Of particular importance is the natural red pigment astaxanthin (ASX) abundant in both salmon and in crustaceans such as shrimp and crab. ASX has a powerful antioxidant effect, and is capable of penetrating the blood-brain barrier, entering the brain, where it acts directly on nerve cells. ASX is also known to have a neuroprotective effect. *550 times stronger than vitamin E. *800 times more powerful than CoQ10. *6000 times more potent than vitamin C Astaxanthin was even found to be more than 500 times more powerful than catechins found in green tea! Here is a quick summary of astaxanthin benefits for your health. Astaxanthin Benefits and Uses. Improves Brain Health; Protects Your Heart; Keeps Skin Glowing; Eases Inflammation; Enhances Your Workout; Boosts Male Fertility; Supports Healthy Vision; 1. Improves Brain Health. As you get older, the risk of developing neurodegenerative disorders like Alzheimer’s or Parkinson’s disease continues to increase. Filed Under: Astaxanthin Benefits Information Tagged With: antioxidant, astaxanthin, astaxanthin benefits, brain, brain function, mind Leave a Reply Cancel reply Your email address will not be published. 3 Major Health Benefits of Astaxanthin Astaxanthin is a unique carotenoid anti-oxidant that gives seafood its pink color. This phytonutrient is produced naturally in specific algae that pass on its free radical scavenging effects to the sea animals that eat them. Astaxanthin is known to powerfully enhance brain function, eye health, immunity and joint function among other things. The greatest natural source for astaxanthin is in the unique microalgae Haematococcus pluvialis. This microalgae reproduces extraordinarily quickly, doubling in volume every week. But astaxanthin's performance doesn't end with your eyes—studies are suggesting it may have equally astounding benefits for your brain! Your Brain on Astaxanthin Less research has been done about the effects of astaxanthin on your brain than the extensive work related to your eyes. However, what has been done shows great promise. Most of the research to date has been performed on rats. Query: astaxanthin brain benefits
[EX A]: Astaxanthin brain benefits are penetrating the blood-brain barrier, entering the brain, where it acts directly on nerve cells.

[EX Q]: These assays can yield results in approximately 1-8 hours depending upon the assay. Notably, the detection of influenza viral RNA by these assays does not necessarily indicate detection of viable infectious virus or on-going influenza viral replication. It is important to note that not all assays have been cleared by the FDA for diagnostic use. The signs and symptoms of influenza can vary by age, immune status, and presence of underlying medication conditions. Uncomplicated influenza can include any or all of these signs and symptoms: fever, muscle aches, headache, lack of energy, dry cough, sore throat, nasal congestion, and possibly runny nose. Dr. Robert Vanzant used the quick test for flu in January and February, but he never expected to bring it out again as we head into summer. This is not flu season, so if someone has the flu this time of year we have to consider swine flu, said Dr. Van Zant, a family practice physician. He demonstrated the flu quick test for us by sticking a cotton swab up both nostrils. Both sides and it's gonna tickle. I'm digging for china here, said Dr. Vanzant. After swabbing both nostrils, the swab sits in liquid for a minute, then the test strip goes in and results come back in 10 minutes. It's the same technology that's used for the home pregnancy test, said Dr. Vanzant. Our test is negative, but other tests are examples of what a positive test looks like. Among respiratory specimens for viral isolation or rapid detection of human influenza viruses, nasopharyngeal specimens typically have higher yield than nasal or throat swab specimens. As with any diagnostic test, results should be evaluated in the context of other clinical and epidemiologic information available to health care providers. Preferred respiratory samples for influenza testing include nasopharyngeal or nasal swab, and nasal wash or aspirate, depending on which kind of test is used . Rapid Influenza Testing. The diagnostic accuracy of influenza swabs is often overestimated by clinicians. The CDC notes that rapid influenza testing has a sensitivity ranging from approximately 50% to 70% — meaning that in up to half of influenza cases, the flu swab results will still be negative. Another study in Turkey showed that the sensitivity of rapid influenza testing for H1N1 ranged from 31.7% to 50%, again depending on the brand of test. During a respiratory illness outbreak in a closed setting (e.g., hospitals, long-term care facility, cruise ship, boarding school, summer camp) testing for influenza can be very helpful in determining if influenza is the cause of the outbreak. So how sensitive are they for “flu-like illness”? Rapid Influenza Testing The diagnostic accuracy of influenza swabs is often overestimated by clinicians. The CDC notes that rapid influenza testing has a sensitivity ranging from approximately 50% to 70% — meaning that in up to half of influenza cases, the flu swab results will still be negative. Preferred respiratory samples for influenza testing include nasopharyngeal or nasal swab, and nasal wash or aspirate, depending on which kind of test is used (see table(https://www.cdc.gov/flu/professionals/diagnosis/table-testing-methods.htm)). Samples should be collected within the first 3-4 days of illness. Laboratory Diagnostic Procedures. A number of tests can help in the diagnosis of influenza (see table(https://www.cdc.gov/flu/professionals/diagnosis/table-testing-methods.htm)). But, tests do not need to be done on all patients with suspected influenza. Rapid influenza diagnostic tests (RIDTs) provide results within approximately 15 minutes; viral culture provides results in 3-10 days. Most of the rapid influenza diagnostic tests that can be done in a physician’s office are approximately 50-70% sensitive for detecting influenza and approximately greater than 90% specific. Query: how long does a flu swab take for results
[EX A]: A flu swab takes 10 minutes for results.

[EX Q]: Density is defined as mass per unit volume; mathematically, we would write: or mass m density d Volume V = = For any pure substance or homogenous mixture, density is an intensive quantity, which means that its value is the same no matter how much of the substance is present. Density expresses the proportional relationship between mass and volume of the substance. If the density of a particular substance is given in grams per milliliter, it indicates the number of grams present in 1 milliliter of that substance. To calculate the density (usually represented by the Greek letter ρ) of an object, take the mass (m) and divide by the volume (v): ρ = m / v. The SI unit of density is kilogram per cubic meter (kg/m3). It is also frequently represented in the cgs unit of grams per cubic centimeter (g/cm3). A concept related to density is the specific gravity (or, even more appropriate, relative density) of a material, which is the ratio of the material's density to the density of water. An object with a specific gravity less than 1 will float in water, while a specific gravity greater than 1 means it will sink. As a result, temperature and pressure can greatly affect the volume of a substance, especially gases. As with mass, increasing and decreasing the amount of material also increases and decreases the volume of the substance. Density. Density is calculated by dividing the mass by the volume (density = mass/volume). For example, 10 grams of freshwater has a volume of 10 milliliters. This results in a density of one gram per milliliter (10 g ÷ 10 mL = 1 g/mL). Unlike mass and volume, increasing the amount of material measured does not increase or decrease density. density, of a substance is its mass per unit volume. The symbol most often used for density is ρ (the lower case Greek letterrho), although the Latin letter D can also be used. Mathematically, density is defined as mass divided by volume: where ρ is the density, m is the mass, and V is the volume. The density, or more precisely, the volumetric mass density, of a substance is its mass per unit volume. The symbol most often used for density is ρ (the lower case Greek letter rho), although the Latin letter D can also be used. Mathematically, density is defined as mass divided by volume:[1] Density is a measure of mass per unit of volume. Density is a measure of mass per volume. The average density of an object equals its total mass divided by its total volume. An object made from a comparatively dense material (such as iron) will have less volume than an object of equal mass made from some less dense substance (such as water). Perhaps the highest density known is reached in neutron star matter. #Density# = #Mass/Volume# To solve the equation for Mass, rearrange the equation by multiplying both sides times Volume in order to isolate Mass, then plug in your known values (Density and Volume). Then solve for Mass. #Mass# = #Density x Volume# Example. The density of copper is #8.933 g/cm^3#. Density equals mass divided by volume: d = m/v So the density will vary depending on how the mass and the volume vary. If you know two of the values, you can plug them into the equation and use algebra to solve for the missing value. Specific gravity is a comparison of the density of a given material to the density of water. Water has a density of 1 gram per cubic centimeter (at 4 degrees C). That makes the math really easy. 1.93 g/cc compared to 1 g/cc equals a specific gravity of 1.93 for the clay in the brick. Note that specific gravity has no units associated with it. It's a number only. We've used mass and volume to find density, and then compared the density of our stuff to that of water to find its specific gravity. Piece of cake. Query: how is density and volume related
[EX A]:
Density is a measure of mass per unit of volume.

