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  2. Deterministic pushdown automaton - Wikipedia

    en.wikipedia.org/wiki/Deterministic_pushdown...

    The two are not equivalent for the deterministic pushdown automaton (although they are for the non-deterministic pushdown automaton). The languages accepted by empty stack are those languages that are accepted by final state and are prefix-free: no word in the language is the prefix of another word in the language.

  3. Glioblastoma - Wikipedia

    en.wikipedia.org/wiki/Glioblastoma

    Glioblastoma pre (left) and post (right) resection. Surgery is the first stage of treatment of glioblastoma. An average GBM tumor contains 10 11 cells, which is on average reduced to 10 9 cells after surgery (a reduction of 99%). Benefits of surgery include resection for a pathological diagnosis, alleviation of symptoms related to mass effect ...

  4. Pushdown automaton - Wikipedia

    en.wikipedia.org/wiki/Pushdown_automaton

    In the theory of computation, a branch of theoretical computer science, a pushdown automaton (PDA) is a type of automaton that employs a stack. Pushdown automata are used in theories about what can be computed by machines.

  5. Annabel Giles dies after brain tumour diagnosis: What is a ...

    www.aol.com/annabel-giles-dies-brain-tumour...

    TV presenter and actress Annabel Giles has died after being diagnosed with a stage four glioblastoma. There are many types of brain tumour and they can be classed as low or high grade.

  6. Glioma - Wikipedia

    en.wikipedia.org/wiki/Glioma

    A glioma is a type of primary tumor that starts in the glial cells of the brain or spinal cord.They are cancerous but some are extremely slow to develop. [2] [3] Gliomas comprise about 30 percent of all brain tumors and central nervous system tumours, and 80 percent of all malignant brain tumours.

  7. Brain tumor - Wikipedia

    en.wikipedia.org/wiki/Brain_tumor

    This is an accepted version of this page This is the latest accepted revision, reviewed on 3 February 2025. Neoplasm in the brain Medical condition Brain tumor Other names Intracranial neoplasm, brain tumour, brain cancer Brain metastasis in the right cerebral hemisphere from lung cancer, shown on magnetic resonance imaging Specialty Neurosurgery, neuro-oncology Symptoms Vary depending on the ...

  8. Patient derived xenograft - Wikipedia

    en.wikipedia.org/wiki/Patient_derived_xenograft

    PDX models of glioblastoma (GBM) have been essential for improving our understanding of the disease both in preclinical and translational research. [29] In vitro cell culture models of glioblastoma, although valuable, can not fully replicate the complexity of the disease since there is a clear lack of the brain microenvironment and clonal ...

  9. Gliomatosis cerebri - Wikipedia

    en.wikipedia.org/wiki/Gliomatosis_cerebri

    Gliomatosis cerebri is a rare growth pattern of some brain tumors, impacting at least three cerebral lobes, mostly with bilateral involvement of the cerebral hemispheres. It can be seen in some types of diffuse glioma, most notably glioblastoma. It consists of infiltrative threads that spread deeply into the brain, making them very difficult to ...

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