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Pollen Count
A pollen count is the measurement of the number of grains of pollen in a cubic meter of air. High pollen counts can sometimes lead to increased rates of allergic reaction for those with allergic disorders. Usually, the counts are announced for specific plants such as grass, ash, or olive. These are tailored to common plants in the measured areas. Mild winters with warmer days lead to an increase in pollen counts while colder winters lead to delayed pollen release. In the UK, the public announcement of the pollen count was popularised by Dr. William Frankland, an immunologist. According to a study by Leonard Bielory, M.D. that was presented to the American College of Allergy, Asthma & Immunology, climate change In common usage, climate change describes global warming—the ongoing increase in global average temperature—and its effects on Earth's climate system. Climate change in a broader sense also includes previous long-term changes to ...s are expected to c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Misc Pollen Colorized
Misc or MISC may refer to: * Misc (title), a gender neutral title * MISC Berhad, or Malaysia International Shipping Corporation * Minimal instruction set computer, a processor architecture * Moi International Sports Centre, in Kasarani, Kenya * Multisystem inflammatory syndrome in children Multisystem inflammatory syndrome in children (MIS-C), or paediatric inflammatory multisystem syndrome (PIMS / PIMS-TS), or systemic inflammatory syndrome in COVID-19 (SISCoV), is a rare systemic illness involving persistent fever and extreme ..., a post-infectious disease associated with COVID-19 See also * * * * Miscellaneous {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pollen
Pollen is a powdery substance produced by seed plants. It consists of pollen grains (highly reduced microgametophytes), which produce male gametes (sperm cells). Pollen grains have a hard coat made of sporopollenin that protects the gametophytes during the process of their movement from the stamens to the pistil of flowering plants, or from the male cone to the female cone of gymnosperms. If pollen lands on a compatible pistil or female cone, it germinates, producing a pollen tube that transfers the sperm to the ovule containing the female gametophyte. Individual pollen grains are small enough to require magnification to see detail. The study of pollen is called palynology and is highly useful in paleoecology, paleontology, archaeology, and forensics. Pollen in plants is used for transferring haploid male genetic material from the anther of a single flower to the stigma of another in cross-pollination. In a case of self-pollination, this process takes place from the an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cubic Meter
The cubic metre (in Commonwealth English and international spelling as used by the International Bureau of Weights and Measures) or cubic meter (in American English) is the unit of volume in the International System of Units (SI). Its symbol is m3. Bureau International de Poids et Mesures.Derived units expressed in terms of base units". 2014. Accessed 7 August 2014. It is the volume of a cube with edges one metre in length. An alternative name, which allowed a different usage with metric prefixes, was the stère, still sometimes used for dry measure (for instance, in reference to wood). Another alternative name, no longer widely used, was the kilolitre. Conversions : A cubic metre of pure water at the temperature of maximum density (3.98 °C) and standard atmospheric pressure (101.325 kPa) has a mass of , or one tonne. At 0 °C, the freezing point of water, a cubic metre of water has slightly less mass, 999.972 kilograms. A cubic metre is sometimes abbreviated ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Frankland (Immunologist)
Alfred William Frankland MBE (19 March 1912 – 2 April 2020) was a British allergist and immunologist whose achievements included the popularisation of the pollen count as a piece of weather-related information to the British public, speculation regarding the effects of overly sterile living environments, and the prediction of increased levels of allergy to penicillin. He continued to work for a number of years after turning 100. Early life and education Frankland was born in Battle, Sussex, England. His father was Rev. Henry Frankland, of North Yorkshire farming stock, who at the time of his son's birth was curate of St. Mark's, Little Common, near Bexhill-on-Sea, East Sussex, and in later years was a vicar in Cumberland. His mother, Alice (Rose), was the daughter of Henry West, a successful ironmonger of Barnsley. He was born an identical twin; his brother (the elder twin by fifteen minutes), Rev. John Ashlin Frankland, who worked in Sierra Leone in the 1950s, died in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American College Of Allergy, Asthma & Immunology
The American College of Allergy, Asthma and Immunology (ACAAI) is an American professional association of immunologists, asthma specialists and allergists. The organization is headquartered in Arlington Heights, Illinois, United States of America. Background The academy was founded in 1942, as The American College of Allergists and was incorporated as a legal entity in the same year. The founders were passionate about establishing the field of Allergy and Immunology as a distinct medical specialty. In 1974, The American Board of Allergy and Immunology (ABAI) was established, further delineating the specialty. See also * American Medical Association The American Medical Association (AMA) is a professional association and lobbying group of physicians and medical students. Founded in 1847, it is headquartered in Chicago, Illinois. Membership was approximately 240,000 in 2016. The AMA's sta ... References External links Official website {{authority control 1942 estab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Climate Change
In common usage, climate change describes global warming—the ongoing increase in global average temperature—and its effects on Earth's climate system. Climate change in a broader sense also includes previous long-term changes to Earth's climate. The current rise in global average temperature is more rapid than previous changes, and is primarily caused by humans burning fossil fuels. Fossil fuel use, deforestation, and some agricultural and industrial practices increase greenhouse gases, notably carbon dioxide and methane. Greenhouse gases absorb some of the heat that the Earth radiates after it warms from sunlight. Larger amounts of these gases trap more heat in Earth's lower atmosphere, causing global warming. Due to climate change, deserts are expanding, while heat waves and wildfires are becoming more common. Increased warming in the Arctic has contributed to melting permafrost, glacial retreat and sea ice loss. Higher temperatures are also causing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silicone Grease
Silicone grease, sometimes called dielectric grease, is a waterproof grease made by combining a silicone oil with a thickener. Most commonly, the silicone oil is polydimethylsiloxane (PDMS) and the thickener is amorphous fumed silica. Using this formulation, silicone grease is a translucent white viscous paste, with exact properties dependent on the type and proportion of the components. More specialized silicone greases are made from fluorinated silicones or, for low-temperature applications, PDMS containing some phenyl substituents in place of methyl groups. Other thickeners may be used, including stearates and powdered polytetrafluorethylene (PTFE). Greases formulated from silicone oils with silica thickener are sometimes referred to as silicone paste to distinguish them from silicone grease made with silicone oil and a soap thickener. Applications Industrial use Silicone grease is commonly used for lubricating and preserving many types of rubber parts, such as O-rings, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Pollen And Aerobiology Research Unit
The National Pollen and Aerobiology Research Unit or NPARU is a research institute in Worcester. It produces the UK's pollen count, and was the world's first pollen forecasting service. History Aerobiology is the study of organic particles and organisms in the atmosphere. The National Pollen and Hayfever Bureau was founded in Rotherham on 21 April 1983. Forecasts for Britain's six million people with hay fever (allergic rhinitis) began from 1 June 1983; it was funded by Fisons Pharmaceuticals. Most people with hay fever are aged 15–24 in the months of June and July. Treatments are ''Beconase'' (beclometasone dipropionate) and ''Flixonase'' (fluticasone propionate). In May 1984 it was about to close when funding by Fisons was withdrawn; the centre continued with funding from kleenex The first amateur pollen trap is now lodged in The National Science Museum The original network was mainly serviced by 30 local authorities on a voluntary basis. Clarityline, a 24-hour helpline for th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
