seal

Examples of seal in the following topics:

• Tight Junctions

  • Tight junctions serve as selectively permeable seals in our body's internal and external surfaces.
  • Tight junctions are virtually (but also partly selectively) impermeable seals that encircle cells and bind them together into leakproof sheets. 
  • Junctional adhesion molecules (JAMs) are immunoglobulin (antibody) proteins that help seal the intercellular space between two cells.
  • When fully formed, a tight junction is not one, long, continuous seal. 
  • Instead, it looks like a series of local seals joined together in a maze-like fashion. 

• Harappan Culture

  • Harappans were thought to have been proficient in seal carving, the cutting of patterns into the bottom face of a seal, and used distinctive seals for the identification of property and to stamp clay on trade goods.
  • As many as 600 distinct Indus symbols have been found on seals, small tablets, ceramic pots, and more than a dozen other materials.
  • Some Indus Valley seals show a swastika symbol, which was included in later Indian religions including Hinduism, Buddhism, and Jainism.
  • One seal from Mohenjo-daro shows a half-human, half-buffalo monster attacking a tiger.
  • This seal was excavated in Mohenjo-daro and depicts a seated and possibly ithyphallic figure, surrounded by animals.

• Sculpture in Mesopotamia

  • Sculptural forms include humans, animals, and cylinder seals with cuneiform writing and imagery in the round or as reliefs.
  • Animals, along with forms of writing, also appear on early cylinder seals, which were carved from stones and used to notarize documents.
  • Officials or their scribes rolled the seals on wet clay tablets as a form of signature.
  • Like the cylinder seal found in Queen Puabi's tomb, the figures in the Tell Asmar Hoard show hieratic scale.
  • Cylinder seal and stamped clay fragment from the tomb of Queen Puabi (c. 2600 BCE)

• Literature of the Qin Dynasty

  • Li Si is also credited with creating the "lesser-seal" style of calligraphy, also known as small seal script, which serves as a basis for the modern Chinese writing system and is still used in cards, posters, and advertising today.
  • Before the Qin conquest of the last six of the Warring States of Zhou China, local styles of characters evolved independently of one another for centuries, producing what are called the "Scripts of the Six States" or "Great Seal Script".
  • Characters which were different from those found in Qin were discarded, and Li Si's small seal characters became the standard for all regions within the empire.
  • Small seal script is an archaic form of Chinese calligraphy that was standardized and promulgated as a national standard by Li Si, prime minister under the Qin Dynasty.

• Indus Valley Civilization

  • Many artistic artifacts such as ceramics, sculptures, seals, and jewelry have been excavated from this time—more, in fact, than from some civilizations which began centuries after its decline.
  • Archaeologists have excavated sculptures, seals, pottery, gold jewelry, elaborate beadwork, and anatomically detailed figurines in terracotta, ceramic, bronze, lead, tin, and steatite from the ancient Indus Valley area.
  • A number of bronze, gold, stone, and terracotta figures of girls in dance poses reveal the presence of some dance forms from the time, and a harp-like instrument depicted on a seal indicates the use of stringed musical instruments.
  • Between 400 and 600 distinct Indus symbols indicating a language have been found on ceramics, seals, and tablets, though the language remains entirely unknown to this day.
  • Discovered at Mohenjo-daro, this seal depicts a seated, horned figure surrounded by animals, who is commonly interpreted to be Pashupati, the "Lord of Cattle."

• Gas Evolution Reactions

  • The test tubes are sealed with rubber stoppers and connected with a delivery tube.
  • In this reaction setup, lime water is poured into one of the test tubes and sealed with a stopper.
  • A small amount of sodium carbonate is added to the acid, and the tube is sealed with a rubber stopper.

• Vasectomy

  • During the procedure, the vasa deferentia of a man are severed, and then tied/sealed in a manner such to prevent sperm from entering into the seminal stream (ejaculate) .
  • There are several methods by which a surgeon might complete a vasectomy procedure, all of which occlude (seal) at least one side of each vas deferens.
  • The vasa deferentia are cut (sometimes a piece removed), separated and then at least one side is sealed.
  • Open-Ended vasectomy: The testicular end of the vas deferens is not sealed, allowing continued streaming of sperm into the scrotum.

• Viable Cell Counting

  • The laboratory procedure involves making serial dilutions of the sample (1:10, 1:100, 1:1000 etc. ) in sterile water and cultivating these on nutrient agar in a dish that is sealed and incubated.
  • The bottles are then sealed and laid on their sides to produce a sloping agar surface.

• Social Regulation

• Climate Change and Biodiversity

  • The rate of warming appears to be accelerated in the arctic, which is recognized as a serious threat to polar bear populations that require sea ice to hunt seals during the winter months; seals are the only source of protein available to polar bears.