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# P cells, with smaller center-surround receptive fields that are sensitive to color and shape ;
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# and P
The problem of how many variable assignments satisfy a formula, not a decision problem, is in # P. UNIQUE-SAT or USAT or Unambiguous SAT is the problem of determining whether a formula known to have either zero or one satisfying assignments has zero or has one.
The song " Boadicea ", also from this album, would later be sampled by The Fugees on their single " Ready or Not " ( 1996 ), causing a brief stir because the group neither sought permission from Enya nor gave her credit initially, and by Mario Winans, who did give her credit ( the Winans track, " I Don't Wanna Know " which features a rap by P. Diddy and is officially credited to all three artists, became Enya's highest charting single in the US, when it peaked at # 2 on the Hot 100 in 2004 ).
# P. onca palustris ( the largest subspecies, weighing more than 135 kg or 300 lb ): The Pantanal regions of Mato Grosso and Mato Grosso do Sul, Brazil, along the Paraguay River into Paraguay and northeastern Argentina.
# Transcription starts from the constitutive P < sub > L </ sub >, P < sub > R </ sub > and P < sub > R '</ sub > promoters producing the ' immediate early ' transcripts.
# Cro binds to OR3 preventing access to the P < sub > RM </ sub > promoter preventing expression of the cI gene.
# Transcription from the P < sub > R '</ sub > promoter can now extend to produce mRNA for the lysis and the head and tail proteins.
# The Qut site is very close to the P < sub > R ’</ sub > promoter, close enough that the σ factor has not been released from the RNA polymerase holoenzyme.
# The mRNA from the P < sub > L </ sub > promoter forms a stable secondary structure with a bobby pin loop in the sib section of the mRNA.
# The stabilized cII acts to promote transcription from the P < sub > RE </ sub >, P < sub > I </ sub > and P < sub > antiq </ sub > promoters.
# and cells
# Released viral particles and proteins present in extracellular fluid are able to induce apoptosis in nearby " bystander " T helper cells.
# Regulation of immune system activity and inflammation: chemokine receptors bind ligands that mediate intercellular communication between cells of the immune system ; receptors such as histamine receptors bind inflammatory mediators and engage target cell types in the inflammatory response
# the cuticle which consists of several layers of flat, thin cells laid out overlapping one another as roof shingles,
# The P < sub > R </ sub > and P < sub > L </ sub > promoters are no longer repressed and switch on, and the cell returns to the lytic sequence of expression events ( note that cII is not stable in cells undergoing the SOS response ).
# Transport and installation of lightweight flexible solar cells also saves cost as compared to cells on glass.
# Blood, which requires extraction through pheresis, wherein blood is drawn from the donor ( similar to a blood donation ), passed through a machine that extracts the stem cells and returns other portions of the blood to the donor.
# Stochastic differentiation: when one stem cell develops into two differentiated daughter cells, another stem cell undergoes mitosis and produces two stem cells identical to the original.
# Protection: an anatomical barrier from pathogens and damage between the internal and external environment in bodily defense ; Langerhans cells in the skin are part of the adaptive immune system.
# Absorption: oxygen, nitrogen and carbon dioxide can diffuse into the epidermis in small amounts ; some animals use their skin as their sole respiration organ ( in humans, the cells comprising the outermost 0. 25 – 0. 40 mm of the skin are " almost exclusively supplied by external oxygen ", although the " contribution to total respiration is negligible ")
# Some proteins involved in cell adhesion prevent tumor cells from dispersing, block loss of contact inhibition, and inhibit metastasis.
# Viruses arose from non-living matter, separately from yet in parallel to cells, perhaps in the form of self-replicating RNA ribozymes similar to viroids.
# Viruses arose by genome reduction from earlier, more competent cellular life forms that became parasites to host cells and subsequently lost most of their functionality ; examples of such tiny parasitic prokaryotes are Mycoplasma and Nanoarchaea.
# Viruses arose from mobile genetic elements of cells ( such as transposons, retrotransposons or plasmids ) that became encapsulated in protein capsids, acquired the ability to " break free " from the host cell and infect other cells.
# 1110's: The Assassins in Syria change their strategy, and start undercover work and build cells in all cities around the region.
# Ganglion cell layer – contains nuclei of ganglion cells, the axons of which become the optic nerve fibres for messages and some displaced amacrine cells
# Inner plexiform layer – contains the synapse between the bipolar cell axons and the dendrites of the ganglion and amacrine cells.
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