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Writer: 

Moosapoor Mansooreh

Issue Info: 
  • Year: 

    2015
  • Volume: 

    46
Measures: 
  • Views: 

    187
  • Downloads: 

    172
Abstract: 

IN THIS PAPER WE STATE SOME PROPERTIES OF SUBSPACE-HYPERCYCLIC VECTORS. WE SHOW THAT IFX BE AN F-SPACE AND M BE A CLOSED SUBSPACE OF X, THEN FOR AN OPERATOR T, THE SET HC (T, M)Ç M IS EMPTY OR DENSE IN M.

Yearly Impact:   مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Author(s): 

PANT C.P.

Journal: 

PARASITOLOGY TODAY

Issue Info: 
  • Year: 

    1987
  • Volume: 

    3
  • Issue: 

    -
  • Pages: 

    324-326
Measures: 
  • Citations: 

    1
  • Views: 

    134
  • Downloads: 

    0
Keywords: 
Abstract: 

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View 134

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesCitation 1 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesRefrence 0
Issue Info: 
  • Year: 

    2017
  • Volume: 

    5
Measures: 
  • Views: 

    76
  • Downloads: 

    22
Abstract: 

IN THIS PAPER WE CHARACTRIZE PARSEVAL ADMISSIBLE VECTORS IN L2 (K), WHERER K IS A LOCALLY COMPACT HYPERGROUP.

Yearly Impact:   مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 22
Author(s): 

Journal: 

LEUKEMIA

Issue Info: 
  • Year: 

    2018
  • Volume: 

    32
  • Issue: 

    7
  • Pages: 

    1529-1541
Measures: 
  • Citations: 

    1
  • Views: 

    160
  • Downloads: 

    0
Keywords: 
Abstract: 

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View 160

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesCitation 1 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesRefrence 0
Author(s): 

WALTHER W. | STEIN U.

Journal: 

DRUGS

Issue Info: 
  • Year: 

    2000
  • Volume: 

    60
  • Issue: 

    -
  • Pages: 

    249-271
Measures: 
  • Citations: 

    1
  • Views: 

    134
  • Downloads: 

    0
Keywords: 
Abstract: 

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View 134

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesCitation 1 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesRefrence 0
Author(s): 

JOHANSEN S.

Issue Info: 
  • Year: 

    1988
  • Volume: 

    12
  • Issue: 

    2-3
  • Pages: 

    231-254
Measures: 
  • Citations: 

    8
  • Views: 

    349
  • Downloads: 

    0
Keywords: 
Abstract: 

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View 349

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesCitation 8 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesRefrence 0
Issue Info: 
  • Year: 

    2022
  • Volume: 

    11
  • Issue: 

    1
  • Pages: 

    1-17
Measures: 
  • Citations: 

    0
  • Views: 

    64
  • Downloads: 

    12
Abstract: 

The main purpose of this study is to represent the semantic word vectors with low dimensions, explicitly. The problem of finding a limited number of meaningful basis vectors for producing explicit semantic word vectors must be solved in such a way that a large accuracy drop is not caused by reducing the dimensions. In this study, we represent a hybrid approach to finding meaningful basis vectors. First, we obtain N basis vectors using the proposed methods: 1-The criterion of word similarity-to-word frequency ratio, 2-Feature selection method based on comparison of distance matrices, 3-Binary weighting method based on PSO algorithm. Then, to take advantage of the expertise of methods 1 and 2 to the same extent, we obtain the first combined basis vectors by combining half of the basis vectors obtained by the criterion of word similarity-to-word frequency ratio with half of the basis vectors selected by the feature selection method. In the next step, we obtain the common context words that have a weight "1" as the common basis vectors produced by the binary weighting method. In the next step, we add the common context words with a weight "1" obtained using the BPSO method to the first combined basis vectors obtained from word similarity-to-word frequency ratio and the feature selection methods. Thus, the second combined basis vectors are obtained, which are meaningful, and each basis vector is equivalent to an informative context word. Therefore, the explicit word vectors produced by meaningful basis vectors can be interpreted. We train the proposed approach using the UkWaC corpus and evaluate it using the word similarity task. Both first and second combined basis vectors improve accuracy. The increase in accuracy is greater in the first combined basis vectors. The evaluation results of explicit word vectors obtained with the first basis vectors show that despite the reduction of word vector dimensions from 5000 to 1511, the Spearman correlation coefficient on MEN, RG-65, and SimLex-999 test sets is increased by 2. 47%, 7. 39%, and 0. 52%, respectively.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View 64

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 12 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesCitation 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesRefrence 0
Writer: 

Moosapoor Mansooreh

Issue Info: 
  • Year: 

    2013
  • Volume: 

    44
Measures: 
  • Views: 

    187
  • Downloads: 

    79
Abstract: 

IN THIS PAPER WE SHOW THAT IF T IS M-TRANSITIVE OR M-CHAOTIC, THEN TN HAS A DENSE SET OF IRREGULAR VECTORS IN M, FOR EVERY N Î N. ALSO WE PROVE THAT TN CANNOT BE SUBSPACE-CHAOTIC IF T IS HYPONORMAL OR SUBNORMAL OR NORMAL OR COMPACT.

Yearly Impact:   مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View 187

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 79
Issue Info: 
  • Year: 

    2007
  • Volume: 

    18
Measures: 
  • Views: 

    201
  • Downloads: 

    0
Keywords: 
Abstract: 

Improving the effectiveness of gene delivery systems are crucial problems in biomedical science. A delivery vehicle (vector), of either viral or non-viral origin, must be used to carry the foreign gene into a cell. Side reactions provoked by the viral vectors, e.g., immune response and insertional mutagenesis, have prompted efforts to improve non-viral delivery systems (vectors). Polyethylenimine (PEI) is a well-known cationic polymer, which has high transfection efficiency owing to its buffering capacity. But it has been reported that PEI is cytotoxic in many cell lines. Polyethylenimine (PEI), a readily available synthetic polycation was introduced for transfection a few years ago. The effect of various chemical modifications of nitrogen atoms on the efficiency of polyethylenimines (PEIs) as synthetic vectors for the delivery of plasmid DNA into several cell lines has been investigated. In the present study our research group has started a couple of new approaches for modifying the structure of PEI in order to increase its transfection efficiency and decrease its cytotoxicity. The first approach was to alkylate the surface nitrogen of PEI (10 KDa) and then top them up with various oligoamines followed by addition of sugar. Therefore, we synthesized modified PEI denderimers and used them as new gene carriers. Polyethylenimine was reacted with bromoacetic acid derivatives with different lengths followed by addition of ethylendiamine, diethylentriamine, spermidine and spermine oligoamines to the carboxyl end of the chains. The second approache was the modification of PEI with peptide sequences which can help the endocytosis and endosomal escape of the nanoperticles. Briefly, various peptide sequences including either Lysine/Histidine, Arginine/Histidine or Serine/Histidine will be added on the top of alkylated-PEI followed by the evaluation of transfection efficiency and cytotoxicity. These polymers were complexed with plasmid DNA at different N/P ratios and the resulting nanoparticles were characterized by dynamic light scattering, gel retardation and transmission electron microscopy (TEM) to determine particle sizes, complex formation and complex shape, respectively. Cytotoxicity and transfection efficiency of the polymers were also tested in cultured Neuro2A cell line. pCMV-RLU and luminometer was employed to quantify the level of transgene expression in Neuro2A cells.

Yearly Impact:   مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Author(s): 

ALTEN B. | CAGLAR S.S. | OZEL O.

Issue Info: 
  • Year: 

    2000
  • Volume: 

    7
  • Issue: 

    -
  • Pages: 

    27-33
Measures: 
  • Citations: 

    1
  • Views: 

    152
  • Downloads: 

    0
Keywords: 
Abstract: 

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View 152

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesCitation 1 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesRefrence 0
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