Abstract：
:In many fields such as data mining, machine learning, pattern recognition and signal processing, data sets containing huge number of features are often involved. Feature selection is an essential data preprocessing technique for such high-dimensional data classification tasks. Traditional dimensionality reduction approach falls into two categories: Feature Extraction (FE) and Feature Selection (FS). Principal component analysis is an unsupervised linear FE method for projecting high-dimensional data into a low-dimensional space with minimum loss of information. It discovers the directions of maximal variances in the data. The Rough set approach to feature selection is used to discover the data dependencies and reduction in the number of attributes contained in a data set using the data alone, requiring no additional information. For selecting discriminative features from principal components, the Rough set theory can be applied jointly with PCA, which guarantees that the selected principal components will be the most adequate for classification. We call this method Rough PCA. The proposed method is successfully applied for choosing the principal features and then applying the Upper and Lower Approximations to find the reduced set of features from a gene expression data.
journal_name
Adv Exp Med Bioljournal_title
Advances in experimental medicine and biologyauthors
Mishra D,Dash R,Rath AK,Acharya Mdoi
10.1007/978-1-4419-7046-6_10subject
Has Abstractpub_date
2011-01-01 00:00:00pages
91-100eissn
0065-2598issn
2214-8019journal_volume
696pub_type
杂志文章abstract：:Osteoblasts and chondrocytes, which derive from a common mesenchymal precursor (osteochondroprogenitor), are involved in bone formation and remodeling in vivo. Determination of osteochondroprogenitor fate is under the control of complex hormonal and local factors converging onto a series of temporospatial dependent tr...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-0-387-34133-0_28
更新日期：2006-01-01 00:00:00
abstract：:For a machine to function, it must first be assembled. The morphogenesis of the simplest icosahedral virus would require only 60 copies of a single capsid protein to coalesce. If the capsid protein's structure could be entirely dedicated to this endeavor, the morphogenetic mechanism would be relatively uncomplicated. ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4614-0980-9_14
更新日期：2012-01-01 00:00:00
abstract：:An ovulated egg of vertebrates is surrounded by unique extracellular matrix, the egg coat or zona pellucida, playing important roles in fertilization and early development. The vertebrate egg coat is composed of two to six zona pellucida (ZP) glycoproteins that are characterized by the evolutionarily conserved ZP-doma...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-981-10-3975-1_5
更新日期：2017-01-01 00:00:00
abstract：:We have examined the question of how hormones regulate the biosynthesis of gonadotropins. In particular we have studied the effects of gonadal sex steroid hormones on the regulation of LH subunit gene expression to determine whether they may occur at the pre-translational level. Success in the molecular cloning of cDN...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4684-5209-9_11
更新日期：1986-01-01 00:00:00
abstract：:To evaluate interrelationships among the oxygenation, the energy status, and the development of necrosis in tumor microregions, oxygen tensions were measured with microelectrodes, and ATP distributions were determined with a quantitative imaging technique using multicellular spheroids as in vitro tumor models. The res...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4684-8181-5_102
更新日期：1990-01-01 00:00:00
abstract：:Porphyrins form extremely stable chelates with Cu2+. Two copper radionuclides, 67Cu and 64Cu, have attractive nuclear decay properties for use in nuclear medicine applications. We have investigated the use of radiocopper-labeled porphyrins for localization in inflamed tissue and for attachment to antibodies for tumor ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4613-0537-8_9
更新日期：1989-01-01 00:00:00
abstract：:Multichain immune recognitionreceptors (MIRRs) represent a family of surfacereceptors expressed on different cells of the hematopoietic system and function to transduce signals leading to a variety of biologic responses. The most intriguing and distinct structural feature ofMIRR family members is that extracellular re...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-0-387-09789-3_12
更新日期：2008-01-01 00:00:00
abstract：:The XPC protein is a component of a heterotrimeric complex that is essential for damage recognition in a nucleotide excision repair subpathway that operates throughout the genome. Biochemical analyses have revealed that the broad substrate specificity of this repair system is based on the structure-specific DNA bindin...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-0-387-09599-8_6
更新日期：2008-01-01 00:00:00
abstract：:We performed a detailed and comprehensive study of the involvement of tumor suppressor genes in human prostate cancer. We utilized primers flanking either the restriction fragment length polymorphism (RFLP) or variable number of tandem repeat [VNTR; microsatellite or simple repeat site (SRS)] polymorphic sites to poly...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4899-1813-0_7
更新日期：1997-01-01 00:00:00
abstract：:Alcohol drinking increases the risk for a number of cancers. Currently, the highest risk (Group 1) concerns oral cavity, pharynx, larynx, esophagus, liver, colorectum, and female breast, as assessed by the International Agency for Research on Cancer (IARC). Alcohol and other beverage constituents, their metabolic effe...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-319-09614-8_3
更新日期：2015-01-01 00:00:00
abstract：:Solid phase fixed peptides are useful tools for the investigation of enzyme substrate interactions. We could show that interactions of target sequences, like e.g. the acceptor domain of G-proteins for the of mono ADP-ribosylation by pertussis toxin and the toxin itself can be studied by this method. Reaction specifici...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4419-8632-0_10
更新日期：1997-01-01 00:00:00
abstract：:Our data indicate that the proinflammatory cytokine, IL-1alpha inhibits GR translocation and hormone-induced GR-mediated gene transcription, and, in conjunction with previous in vivo and in vitro studies, can be interpreted to suggest that cytokines have the capacity to contribute to glucocorticoid resistance and thus...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-0-585-37970-8_7
更新日期：1999-01-01 00:00:00
abstract：:As extracts from Ganoderma lucidum (G. lucidum, Lingzhi) have been reported to be an alternative adjuvant treatment for diabetes, numerous of work have been carried out on it. Among the many biologically active constituents of Ganoderma, polysaccharides, proteoglycans, proteins, and triterpenoids have been shown to ha...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-981-32-9421-9_8
更新日期：2019-01-01 00:00:00
abstract：:The aim of this work was comparison of two algorithms of perfusion computed tomography (PCT) data analysis for evaluation of cerebral microcirculation in the perifocal zone of chronic subdural hematoma (CSDH). Twenty patients with CSDH after polytrauma were included in the study. The same PCT data were assessed quanti...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-3-319-38810-6_53
更新日期：2016-01-01 00:00:00
abstract：:Recently, a role for SUMO modification outside of the nucleus has emerged. Although the number of extranuclear proteins known to be sumoylated is comparatively small, ion channels represent one important new class of these proteins. Ion channels are responsible for the control of membrane excitability and therefore ar...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-319-50044-7_8
更新日期：2017-01-01 00:00:00
abstract：:Gastric polyps occur in 1-4 % of patients undergoing gastroscopy. Although most are sporadic, some gastric polyps are part of an underlying hereditary syndrome. Gastric polyps can be seen in each of the well-known gastrointestinal polyposis syndromes, but also in Lynch syndrome and in several rare not primarily gastro...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-319-41388-4_17
更新日期：2016-01-01 00:00:00
abstract：:The primary goal of this project was to elucidate the spatial pattern of capillaries in three hamster striated muscles according to statistical techniques of pattern analysis. The spatial pattern of capillaries and traditional measures of capillarity are important to understanding the supply and distribution of oxygen...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4684-5643-1_30
更新日期：1989-01-01 00:00:00
abstract：:Acute leukaemia is the major subtype of paediatric cancer with a cumulative risk of 1 in 2000 for children up to the age of 15 years. Childhood acute lymphoblastic leukaemia (ALL) is a biologically and clinically diverse disease with distinctive subtypes; multiple chromosomal translocations exist within the subtypes a...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-981-10-3233-2_14
更新日期：2017-01-01 00:00:00
abstract：:Screening of recombinant cosmid and phage libraries with a rabbit C alpha cDNA probe has identified a total of seven C alpha genes organized into two clusters; one cluster contains four genes and the other cluster, three genes. Southern blot analysis of genomic DNA indicates that the rabbit genome contains a minimum o...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4684-5344-7_3
更新日期：1987-01-01 00:00:00
abstract：:Screening of chromogenic peptide substrates have shown that FXIIa readily splits substrates of D-Pro-Phe-Arg-pNA (S-2302) and -Gly-Arg-pNA (e.g. S-2222) types. The latter type is preferred in a system where kallikrein is present. By using the substrate S-2222 a method for the determination of beta FXIIa inhibitors has...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4757-0154-8_7
更新日期：1986-01-01 00:00:00
abstract：:Erythrocyte phosphoribosylpyrophosphate availability for adenine was measured by silicon oil method previously described. The homozygotes of Japanese type APRT deficiency (n = 6, from 4 families) showed 4.3 +/- 2.7% (mean +/- standard deviation) of adenine PRPP availability and the heterozygotes (n = 5) showed 86.0 +/...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4684-5673-8_6
更新日期：1989-01-01 00:00:00
abstract：:The family of TRP channel is comprised of a large group of cation-permeable channels, displaying as signaling integrators for sensing extracellular stimulus and initiating intracellular signaling cascades. This chapter offers a brief review of the signaling molecules related to TRPC channels, the first identified mamm...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-94-024-1088-4_3
更新日期：2017-01-01 00:00:00
abstract：:Most chemical exposures involve complex mixtures. The role of paraoxonase 1 (PON1) and the Q192R polymorphism in the detoxication of individual organophosphorous (OP) compounds has been well-established. The extent to which PON1 protects against a given OP is determined by its catalytic efficiency. We used a humanized...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-60761-350-3_6
更新日期：2010-01-01 00:00:00
abstract：:CEP290 mutations cause a spectrum of ciliopathies, including Leber congenital amaurosis. Milder retinal diseases have been ascribed to exclusion of CEP290 mutant exons through basal exon skipping (BES) and/or nonsense-associated altered splicing (NAS). Here, we report two siblings with some preserved vision despite bi...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-3-030-27378-1_31
更新日期：2019-01-01 00:00:00
abstract：:Inorganic lead ion, in micromolar concentrations, reversibly inhibits the sodium-plus-potassium-activated adenosinetriphosphatase (ATPase) and potassium-activated p-nitrophenylphosphatase (NPPase) activities of microsomal fractions from electric organ, rat kidney, and rat brain. In the presence of 3 mM MgC12 and 3 mM ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4684-3279-4_21
更新日期：1977-01-01 00:00:00
abstract：:Forty-eight patients with adenocarcinoma of the gastrointestinal tract were treated on this trial. The MTD of 5-FU given as a 72 hour infusion with high-dose leucovorin was initially determined to be 2000 mg/m2/d. Patients were treated at PALA dose levels ranging from 250 to 2848 mg/m2. Biochemical assessment of targe...
journal_title：Advances in experimental medicine and biology
pub_type： 临床试验,杂志文章
doi：10.1007/978-1-4615-2488-5_13
更新日期：1993-01-01 00:00:00
abstract：:Although many studies have described the role of periostin in various diseases, the functions of periostin derived from alternative splicing and proteinase cleavage at its C-terminus remain unknown. Further experiments investigating the periostin structures that are relevant to diseases are essential for an in-depth u...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-981-13-6657-4_2
更新日期：2019-01-01 00:00:00
abstract：:Inhibition of human phospholipases A2 by cis-unsaturated fatty acids and their oxidative metabolites and/or polymers was studied using partially purified human phospholipases A2 and [1-14C]oleate labelled, autoclaved E. coli as substrate. As previously reported for other phospholipases A2, oleic and arachidonic acids ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4613-0651-1_15
更新日期：1990-01-01 00:00:00
abstract：:The primary trihydroxy bile acid, cholate, both free and conjugated, is nontoxic in cultured human lymphoblastoid cells incubated in vitro. The primary dihydroxy bile acid, chenodeoxycholate, was more toxic at high concentrations than at low concentrations, but conjugation with taurine reversed it. The free secondary ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4899-0405-8_6
更新日期：1987-01-01 00:00:00
abstract：:Experiments using live dissociated carotid body (CB) cells for patch clamping, [Ca(++)](i) or other measurements require positive identification of the cell being recorded. At present, cell morphology is usually employed, but several cell types within the carotid body evidence similar morphologic characteristics. Ther...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-90-481-2259-2_21
更新日期：2009-01-01 00:00:00
