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Reducing the Size of Extended Gemmating P Systems
[chapter]
2005
Lecture Notes in Computer Science
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In the case of gemmating P systems with only pre-dynamical rules, we prove that four membranes are sufficient to generate any recursively enumerable language. ...
We show that systems with metapriority relations and without (in/out) communication rules generate any recursively enumerable language with three membranes, thus we present an optimal result on the necessary ...
Gemmating P systems are with simple membrane structures, where the skin membrane contains only elementary membranes with string objects which correspond to proteins or any other structured bigger substances ...
doi:10.1007/978-3-540-31837-8_18
fatcat:t3ut6seqrrdg7j6t5vljbdafkm
AN APPROACH TO MEMBRANE COMPUTING UNDER INEXACTITUDE
2004
International Journal of Foundations of Computer Science
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We prove that these fuzzy membrane systems generate exactly the recursively enumerable finite-valued fuzzy subsets of N. ...
In this paper we introduce a fuzzy version of symport/antiport membrane systems. ...
A membrane structure µ is a finite rooted tree whose nodes are called membranes. ...
doi:10.1142/s0129054104002789
fatcat:p75lbrosnrg6zl4elcoxmhtene
Page 3348 of Mathematical Reviews Vol. , Issue 2001E
[page]
2001
Mathematical Reviews
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Summary: “Membrane computing is a recently introduced area of molecular computing where a computation takes place in a membrane structure where multisets of objects evolve according to given rules (they ...
A new computing device, called a P system, based on the notion of a membrane structure is introduced where the membrane struc- ture is defined as the language with a certain restriction over the
68 COMPUTER ...
An approach to membrane computing under inexactitude
[article]
2004
arXiv
pre-print
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We prove that these fuzzy membrane systems generate exactly the recursively enumerable finite-valued fuzzy sets of natural numbers. ...
In this paper we introduce a fuzzy version of symport/antiport membrane systems. ...
A membrane structure µ is a finite rooted tree whose nodes are called membranes. ...
arXiv:cs/0403027v2
fatcat:wukeyjuin5hd5anjzttdesta5u
Is advanced Coupling Methods best fitted in Biosensing of Microparticles?
2017
Archives of Biotechnology and Biomedicine
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The review is depicted the perspectives to use coupling methods for MP measurement and structure assay. ...
There are several methods that currently used for the detection of number and characterization of structure and features of MPs. ...
detected and enumerated as MPs. ...
doi:10.29328/journal.hjb.1001005
fatcat:j4nacmc4avhq7ke6inwog4nqqi
Cell envelope damage in Escherichia coli caused by short-term stress in water
1980
Applied and Environmental Microbiology
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Growth in a selective medium containing this compound can be used as an index of structural damage to the membrane (4). ...
FIG. 1 . 1 Enumeration of E. coli stressed in vessels of reagent grade water. ...
pmid:7008696
pmcid:PMC291586
fatcat:sgcxsnnigzdzzam2wfhokgr7yy
Comparison of the new millipore HC with conventional membrane filters for the enumeration of fecal coliform bacteria
1975
Applied microbiology
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Fecal coliform recoveries were determined for six types of membrane filters using 65 nonchlorinated water samples. ...
Results showed that the membranes could be ranked in order of decreasing recovery as follows: Millipore HC greater than Gelman greater than Johns-Manville approximately Sartorius greater than Millipore ...
The optimum membrane structure was found to have a 2.4-pum surface opening size and a retention pore size of 0.7 pum. ...
pmid:1103735
pmcid:PMC187250
fatcat:st7ht7ljajgnfnngumcpx4zmoi
Comparison of Surface Pore Morphology of Two Brands of Membrane Filters
1976
Applied and Environmental Microbiology
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Recently Sladek et al. (6) presented a pore morphology explanation in which they concluded that the surface structure of the membrane is the primary factor in fecal coliform recovery. ...
Over the last several years, the membrane filter (MF) technique for enumeration of coliforms in water has been adopted by most laboratories involved in this type of analysis in the United States. ...
(6) presented a pore morphology explanation in which they concluded that the surface structure of the membrane is the primary factor in fecal coliform recovery. ...
doi:10.1128/aem.31.2.316-319.1976
fatcat:2ifqlc24srgybm73onxxy7wvhe
Coupling Analytical Methods for Detection of Microparticles: The Possibilities for Improvement
2017
Journal of Biotechnology & Biomaterials
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The review depicts the perspectives of using coupling methods for MP measurement and structure assay. ...
There are several methods that are currently used for the detection of the numbers and the characterization of structure of MPs. ...
be detected and enumerated as MPs. ...
doi:10.4172/2155-952x.1000257
fatcat:z6fuhc3qdbfcthlil3hmuyhk2e
Comparison of nine brands of membrane filter and the most-probable-number methods for total coliform enumeration in sewage-contaminated drinking water
1980
Applied and Environmental Microbiology
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for total coliform enumeration in simulated sewage-contaminated tap water. ...
A comparison was made of the species enumerated by these methods; in general the two methods enumerated a similar spectrum of organisms, with some indication that the MF method was subject to greater interference ...
recoveries enumerated from two to four times more coliforms than the membranes with the lowest recoveries. ...
pmid:7469407
pmcid:PMC291551
fatcat:l7tinw4gdjeqzp5gcaoyqjl46i
Page 478 of Western Journal of Medicine and Surgery Vol. 4, Issue
[page]
1845
Western Journal of Medicine and Surgery
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and important in their influence, both in health and disease, but need not, it is thought, be enumerated in the present connection. ...
Let it sutfice to remark, as wor- thy of ali attention, that the structure and functions of the mucous membranes, and those of the skin are related by an- alogies which are close and important, and which ...
Page 368 of Archives of Pathology & Laboratory Medicine Vol. 11, Issue 3
[page]
1931
Archives of Pathology & Laboratory Medicine
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Their physical structure may be altered and their action modified by changes in hydro- gen ion concentration, by the anions and cations enumerated in the Hofmeister series and by adsorption of substances ...
The membranes themselves are probably made up of hydrophil colloids and would accordingly be sensitive to all the factors just enumerated. ...
Comparison of surface pore morphology of two brands of membrane filters
1976
Applied and Environmental Microbiology
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The surface pore morphology of two brands of membrane filters was studied by using scanning electron microscopy. ...
(6) presented a pore morphology explanation in which they concluded that the surface structure of the membrane is the primary factor in fecal coliform recovery. ...
Over the last several years, the membrane filter (MF) technique for enumeration of coliforms in water has been adopted by most laboratories involved in this type of analysis in the United States. ...
pmid:16345151
pmcid:PMC169766
fatcat:c4yqra5strckvptdxiu5zif2qi
Direct Antimicrobial Activity of IFN-β
2017
Journal of Immunology
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Remaining bacteria were serially diluted and plated for enumeration. (B) Mouse and human IFN-b were compared at the nucleic acid, amino acid, and structural levels. ...
Remaining bacteria were serially diluted and plated for enumeration. ...
doi:10.4049/jimmunol.1601226
pmid:28411186
pmcid:PMC5469413
fatcat:wlxm2lnlt5fkrgguvx5uv7x7r4
Further Results on Languages of Membrane Structures
[article]
2011
arXiv
pre-print
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P systems with active membranes were used to generate languages, in the sense of languages associated with the structure of membrane systems. ...
This leads us to characterizations of recursively enumerable languages. ...
For each of these approaches, characterizations of recursively enumerable languages were provided based on P systems that use different sets of operations for modifying the membrane structure. ...
arXiv:1108.3431v1
fatcat:tazoia2tabd3hobb5besuj5he4
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