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When a B-cell in the lymph node recognizes the same unprocessed surface antigen on the bacterium with its surface bound antibody, the antigen is endocytosed and processed.
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When and B-cell
When a B-cell reaches its mature state, it co-expresses both IgM and IgD.
When and lymph
When health conditions warrant, immune system organs including the thymus, spleen, portions of bone marrow, lymph nodes and secondary lymphatic tissues can be surgically excised for examination while patients are still alive.
When the thoracic duct-venous communication is blocked, however, the resultant raised intralymphatic pressure will usually cause other normal non-functioning communications to open and thereby allow the return of lymph to the blood stream.
When the prions are absorbed through the intestines, they first appear in the lymph nodes, especially in Peyer's patches at the small intestine.
When the thoracic duct is blocked or damaged a large amount of lymph can quickly accumulate in the pleural cavity, this situation is called chylothorax.
When a lymph node detects a possible threat passing into it in the lymph ( such as a bacterium ), it swells up.
When a paraaortic lymph node dissection or sampling is done as a part of the treatment of cancer, the lateral aortic lymph node group is the most important group.
When a lumpectomy is performed for DCIS, lymph node biopsy and radiation therapy may be performed.
When metastasis does occur, it is usually to the liver, spleen, lymph nodes and bone marrow.
When the hilar lymph node for instance is infected with tuberculosis and leads to caseous necrosis, its gross appearance can be a cheesy tan to white, which is why this type of necrosis is often depicted as a combination of both coagulative and liquefactive necrosis.
When the head of the operating room table is lower than the heart, fluid accumulates in tissues of the head because venous return and lymph drainage are decreased.
When an infection is present, the lymph nodes swell, produce more white blood cells, and attempt to trap the organisms that are causing the infection.
When cancer has not spread to the locoregional lymph nodes ( stage II, Dukes B ) the benefit of chemotherapy is marginal and the decision on whether to give adjuvant chemotherapy should be carefully evaluated by discussing with the patient the realistic benefits and the possible toxic side effects of treatment.
When and node
When a key is requested, first the node checks the local data store.
When the user wants to do a search, the client sends the request to each actively connected node.
When a node first starts, it only knows of its immediate neighbours, and the direct cost involved in reaching them.
When applying link-state algorithms, each node uses as its fundamental data a map of the network in the form of a graph.
When applied to a bus-based network, this central hub rebroadcasts all transmissions received from any peripheral node to all peripheral nodes on the network, sometimes including the originating node.
When a node x is accessed, a splay operation is performed on x to move it to the root.
When a subtree is rotated, the subtree side upon which it is rotated decreases its height by one node while the other subtree increases its height.
When a node wanted to transmit data, it would raise a bit on its hub port connection that indicating to the hub that it was ready.
When combined with Near Vertical Incidence Skywave ( NVIS ) techniques and sufficient channels spread across the spectrum, an ALE node can provide greater than 95 % success linking on the first call, on a near-par with SATCOM systems.
When a station or device or node wants to send some information, it uses the following algorithm:
When a node sends a message, the message is processed by each computer in the ring.
When the physical star topology is applied to a logical bus network such as Ethernet, this central node ( traditionally a hub ) rebroadcasts all transmissions received from any peripheral node to all peripheral nodes on the network, sometimes including the originating node.
# When we are done considering all of the neighbors of the current node, mark the current node as visited and remove it from the unvisited set.
When back-face culling is used, each node therefore contains a convex set of polygons, whereas when rendering double-sided polygons, each node of the BSP tree contains only polygons in a single plane.
When administered intravenously, adenosine causes transient heart block in the Atrioventricular ( AV ) node.
When a link-state advertisement is received at a node, the node looks up the sequence number it has stored for the source of that link-state message.
When a node is moved from the candidate list into the tree, it is removed from the candidate list and is not considered in subsequent iterations of the algorithm.
When a fact or combination of facts causes all of the patterns for a given rule to be satisfied, a leaf node is reached and the corresponding rule is triggered.
When and recognizes
When a man recognizes a certain experience as the exact pattern of a previous dream, we have an instance of deja vue, except for the fact that he knows just why the experience seems familiar.
When the pair bring Sally inside, the hitchhiker recognizes her and taunts her.
When one then develops the photographic plate, one recognizes that the silhouette of the phosphorescent substance appears in black on the negative.
When Sandra Pickering, one of the students, belatedly submits some chapters from the novel she is writing, Helen immediately recognizes one of the male characters as having been modelled on her late husband Martin.
When they get to the house, Pinocchio recognizes the lady as the Blue-haired Fairy, now miraculously old enough to be his mother.
When his picture makes the front page of the newspapers, the Girl recognizes him and gets him released.
When a lymphocyte recognizes an antigen, B cells become activated and migrate to germinal centers ( by definition, a " secondary nodule " has a germinal center, while a " primary nodule " does not ).
When the joker rises to exit the bus, Tender recognizes the man's pants as Creedish dress, and suddenly recognizes the man as Adam, his twin brother.
When someone recognizes a duty, that person theoretically commits themself to its fulfillment without considering their own self-interest.
When its CD8 docks to MHC class I, if its TCR recognizes its matching epitope, the killer T cell induces the cell's apoptosis.
When a depreciable asset is sold, the business recognizes gain or loss based on net basis of the asset.
When Sisko returns to the station, he finds the rest of his staff has arrived, including Chief of Medicine Dr. Julian Bashir and Science Officer Lt. Jadzia Dax, whom Sisko happily recognizes as a Trill and the current host of his former friend Curzon Dax.
When he recognizes the truth of his friend's loyalty and bravery and his own fatal mistake, Túrin is so overcome with grief that he walks in a daze for weeks, being led out of danger by Gwindor.
When Zenobia recognizes that Coverdale witnessed this scene, she asks him to tell Hollingsworth that he has “ murdered ” her and tells him that when they next meet it will be behind the “ black veil ,” representing death.
When a man recognizes Rollergirl as a former high school classmate, he insults both her and Jack.
When Nina and Dr. Gillen arrive, Wim recognizes Nina from the drawings of her and Johan in the " vampire's house " on the hill.
When one policeman recognizes him from a bulletin, Kendig escapes by short-circuiting an electrical socket and stealing a police car.
When the actors ask about Simon and where they might buy some ecstasy, Ronna recognizes a lucrative financial opportunity.
When Theodore removes his shirt to be killed, Jerome recognizes a marking below his shoulder and identifies Theodore as his own son.
When he sees that she is wearing gloves, he instantly recognizes her as a witch ; and he also notices her inhuman lips and teeth ; her gums resemble " raw meat.
When a plant recognizes an attacking pathogen, one of the first induced reactions is to rapidly produce superoxide or hydrogen peroxide to strengthen the cell wall.
When it comes to the kind of correspondence that might be said to exist between a symbol, a word like " works ", and its object, the springs and catches of the clock on the wall, then the pragmatist recognizes that a more than nominal account of the matter still has a lot more explaining to do.
When television footage of a parade she participated in is broadcast, a one-eyed convict, " One-Eyed " Jack ( Joseph McKenna ), recognizes her immediately and escapes on a mission of revenge.
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