Reference-Feature Centric

2011 ◽  
Keyword(s):  
Reference Feature

scholarly journals Proper motions of water masers: W 51 North, Main, and South

2002 ◽  
Vol 206 ◽  
pp. 88-91 ◽  
Author(s):  
Hiroshi Imai ◽  
Tetsuo Sasao ◽  
Osamu Kameya ◽  
Teruhiko Watanabe ◽  
Toshihiro Omodaka ◽  
...  
Keyword(s):  
Proper Motion ◽  
Massive Star ◽  
Model Fitting ◽  
Proper Motions ◽  
Star Forming ◽  
Motion Measurements ◽  
Water Masers ◽  
Reference Feature

We describe the proper motion measurements of water masers in the massive-star forming region W 51A and the analysis of the 3-D kinematics in three maser clusters of W 51A. We found a systematic expanding motion in one of the clusters named W 51 North, while no systematic motion was detected in other two clusters named W 51 Main and South. The 3-D motions of the clusters relative to the position reference feature in W 51 North indicate a separating motion between the W 51 North and the W 51 Main/South clusters. We estimated the distance to W 51 North as to be 6.7±2.1 kpc on basis of the statistical parallax and the model fitting methods.

scholarly journals Rule-Based Knowledge Acquisition Method for Promoter Prediction in Human andDrosophilaSpecies

2014 ◽  
Vol 2014 ◽  
pp. 1-14 ◽  
Author(s):  
Wen-Lin Huang ◽  
Chun-Wei Tung ◽  
Chyn Liaw ◽  
Hui-Ling Huang ◽  
Shinn-Ying Ho
Keyword(s):  
Molecular Weight ◽  
Physicochemical Properties ◽  
Knowledge Acquisition ◽  
Promoter Prediction ◽  
Promoter Regions ◽  
Rule Based ◽  
Reliable Identification ◽  
Feature Mining ◽  
Acquisition Method ◽  
Reference Feature

The rapid and reliable identification of promoter regions is important when the number of genomes to be sequenced is increasing very speedily. Various methods have been developed but few methods investigate the effectiveness of sequence-based features in promoter prediction. This study proposes a knowledge acquisition method (named PromHD) based on if-then rules for promoter prediction in human andDrosophilaspecies. PromHD utilizes an effective feature-mining algorithm and a reference feature set of 167 DNA sequence descriptors (DNASDs), comprising three descriptors of physicochemical properties (absorption maxima, molecular weight, and molar absorption coefficient), 128 top-ranked descriptors of 4-mer motifs, and 36 global sequence descriptors. PromHD identifies two feature subsets with 99 and 74 DNASDs and yields test accuracies of 96.4% and 97.5% in human andDrosophilaspecies, respectively. Based on the 99- and 74-dimensional feature vectors, PromHD generates several if-then rules by using the decision tree mechanism for promoter prediction. The top-ranked informative rules with high certainty grades reveal that the global sequence descriptor, the length of nucleotide A at the first position of the sequence, and two physicochemical properties, absorption maxima and molecular weight, are effective in distinguishing promoters from non-promoters in human andDrosophilaspecies, respectively.

scholarly journals A Reference Feature based method for Quantification and Identification of LC-MS based untargeted metabolomics

2020 ◽  
Author(s):  
Enhui Luan ◽  
Ken Cheng ◽  
Qiaoyun Long ◽  
Dehua Li ◽  
Zhenyu Li ◽  
...  
Keyword(s):  
Real Time ◽  
Metabolite Identification ◽  
Untargeted Metabolomics ◽  
Time Analysis ◽  
Real Time Analysis ◽  
Feature Based ◽  
Fixed Reference ◽  
Analysis Mode ◽  
Overlap Rate ◽  
Reference Feature

AbstractBatch inconsistency is a major problem when applying LC-MS based untargeted metabolomics in real-time analysis situation such as clinical diagnosis or health monitoring. And inefficiency of collecting MS2 is a major problem for metabolite identification. Here, we developed a reference-feature based quantification and identification strategy (RFQI). In RFQI, samples are individually profiled using a pre-fixed reference feature table. Quantification results show that RFQI improves features’ overlap rate and reduce variance across batches significantly in real-time-analysis mode, and can find more than 4-fold numbers of features. Besides, RFQI collects MS2 from consecutive increasing samples for metabolite identification of pre-fixed features, thus it can effectively compensate for the poor efficiency of MS2 collection in data-dependent acquisition mode. In summary, RFQI can make full advantage of consecutive increasing samples in real-time analysis situation, both for quantification and identification.

scholarly journals A Speech Intelligibility Estimation Method Using a Non-reference Feature Set

2015 ◽  
Vol E98.D (1) ◽  
pp. 21-28 ◽  
Author(s):  
Toshihiro SAKANO ◽  
Yosuke KOBAYASHI ◽  
Kazuhiro KONDO
Keyword(s):  
Speech Intelligibility ◽  
Estimation Method ◽  
Reference Feature

Pediatric Airway Fundamentals

2021 ◽  
pp. 3-16
Author(s):  
Aisha Sozzer ◽  
Jennifer Anderson
Keyword(s):  
Airway Management ◽  
Laryngeal Mask ◽  
Specialized Knowledge ◽  
Pediatric Airway ◽  
Endotracheal Tubes ◽  
Pediatric Anesthesiologist ◽  
And Training ◽  
Reference Feature

This chapter describes the important anatomic and physiologic differences between the child and adult pertinent to airway management. Equipment specific for pediatric airway management, including laryngoscopes, endotracheal tubes, and supraglottic airways, are described. It is critical that the pediatric anesthesiologist have specialized knowledge of and training for the pediatric airway as well as the correct equipment available for airway management. Many specialized options for airway management have become available in recent years, including Microcuff endotracheal tubes and new types of supraglottic airways. This chapter provides detailed step-by-step guidance on the basics of pediatric airway management. A useful reference feature included are charts on sizing of endotracheal tubes, laryngeal mask airways, the i-gel device, and the air-Q device.

Pacific Conservation Biology: an authorship and citation analysis

2008 ◽  
Vol 14 (4) ◽  
pp. 285 ◽  
Author(s):  
M. C. Calver ◽  
K. A. Bryant
Keyword(s):  
Conservation Biology ◽  
Web Of Science ◽  
South American ◽  
H Index ◽  
Isi Web Of Science ◽  
Thomson Reuters ◽  
Citation Statistics ◽  
Academic Authors ◽  
International Representation ◽  
Reference Feature

We analysed Pacific Conservation Biology?s authorship and readership from 1993?2007 to quantify who publishes in the journal, who cites the journal, how the journal compares to other conservation journals and whether there are trends in authorship and useage over time. Authors came from Australia (73%, represented in 15 of 15 years), the Americas (Canada, USA and South American countries) (12%, represented in 13 of 15 years), New Zealand (8%, represented in 14 of 15 years), other Pacific and Asian countries (4%, represented in 11 of 15 years) and Europe (2%, represented in 11 of 15 years). Overall, 46% of authors were academics. Using the Scopus database in April 2008 and the cited reference feature in the ISI Web of Science in July 2008, =84% papers published each year between 1993 and 2001 were cited at least once in each database, declining to under 19% in 2007 because articles had far less time to accrue citations. Using the cited reference feature in the ISI Web of Science database in July 2008, authors citing Pacific Conservation Biology came from Australia and 82 other countries. Compared to 24 journals listed in Thomson Reuters? ?Biodiversity Conservation? category in 2008, Pacific Conservation Biology ranked between the 10th and 39th percentiles for a range of citation statistics derived from both Scopus and ISI Web of Science, including: Journal Impact Factor (JIF) for 2006, mean JIF for 2001?2006 and h-index, g-index, mean citations/paper and median citations/paper for 2000?2006. Overall, most authors are Australian, but with consistent international representation and academic and non-academic authors. With time, most papers are cited (including many international citations) and citation statistics are within the range of similar journals abstracted in ISI Web of Science. On the basis of the results, we offer suggestions for increasing Pacific Conservation Biology?s use and a critique of the growing tendency to accept citation-based bibliometric data as indicators of the quality or achievements of journals and individual scientists.

scholarly journals Ternary Fingerprints with Reference Odor for Fluctuation-Enhanced Sensing

Biosensors ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 93
Author(s):  
Xiaoyu Yu ◽  
Laszlo B. Kish ◽  
Jean-Luc Seguin ◽  
Maria D. King
Keyword(s):  
Information Entropy ◽  
Cow Manure ◽  
Improved Method ◽  
Fingerprinting Method ◽  
Reference Feature

An improved method for fluctuation-enhanced sensing (FES) is introduced. We enhanced the old binary fingerprinting method, where the fingerprint bit values were ±1, by introducing ternary fingerprint bits utilizing a reference odor. In the ternary method, the fingerprint bit values are −1, 0, and +1, where the 0 value stands for the situation where the slope of the spectrum is identical to that of the reference odor. The application of the reference odor spectrum makes the fingerprint relative to the reference. The ternary nature and the reference feature increase the information entropy of the fingerprints. The method is briefly illustrated by sensing bacterial odor in cow manure isolates.

Reference-Feature Centric

2008 ◽  
pp. 956-956
Author(s):  
Shashi Shekhar ◽  
Hui Xiong
Keyword(s):  
Reference Feature
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