There are filters at certain points throughout the lymphatic system called lymph nodes, which usually exist in grape-like clusters.
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Sometimes, when I moved my face a little, I could almost feel my skin brushing against words, like clusters of tiny, tickling insects.
Clusters like Hyades are places where many stars are born and live relatively close by to each other.
Clusters like El Gordo release energetic particles that have an effect on the cosmic microwave background, the extremely faint glow left over from the Big Bang that permeates the Universe.
Such black holes ranging in size from 1, 000 to 10, 000 times the mass of the sun should sit inside globular clusters like scaled-down versions of galactic black holes at least in theory.
As well as any genetic predisposition, entrepreneurship is stimulated through social influence: clusters of like-minded individuals breed particular social values and norms.
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Moreover, many asteroids are chunky masses of rock and dust loosely held together by very little gravity, like loosely packed peanut clusters.
William Powlett Smith at Ernst and Young, a consultancy, reckons that the last thing Britain needs is a government-inspired push to create more clusters, like the German government's BioRegio competition, begun in 1996, to kickstart biotechnology in three regions.
Yet, visitors to Beijing do not have to go too far off the beaten path to find dingy alleyways lined by what remains of the old courtyard homes that exist in clusters, like islands on the verge of being swallowed by the tidal wave of new China.
Consultancies are also springing up, selling companies on ways to use Amazon for things like online backup systems and database clusters to speed a Web site's performance.
Since like attracts like, it is easy to see how clusters of excellence form in health care and pharmaceuticals, and in associated financial and data services.
Studying word "clusters"helps determine whether a search term like "Blondie" means the comic strip or the punk-pop band from the 1980s.
The maths tells us that in respect of probability, people are much like tosses of a coin: we will see occasional clusters, even of cancer.
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She explained the ideas behind her personal favorite: steamed egg with ixora flowers, which grow in small clusters and have a slightly sour, rose-like taste.
Up in the top deck, clusters of fans swayed and sang along with anthems like "Beer in Mexico" and "Living in Fast Forward, " though it was almost impossible to focus on the tiny singer onstage whose image was multiplied on video screens seven stories tall.
Though Texas increasingly looked like a broad, bragging California, full of high-tech clusters and with the white Anglo culture besieged by Latinos and Asians, Mrs Richards was well aware of the unchanging lower layers.
But other parts of the island look more like California, with throngs of pink-shouldered tourists, strip malls, bulky hotels and clusters of time-shares.
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Mr. Ling recently asked Mr. Hunt and an employee to reorganize the company's showroom to reflect the Apple-like style, but the two lined up the mattresses in rows instead of grouping them in clusters as Apple does with its products.
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