A5031980423- Health and Medical Research Impacts
- scientometrics and bibliometrics research
- Music Technology and Sound Studies
- Plant Parasitism and Resistance
- Natural Compound Pharmacology Studies
- Diversity and Career in Medicine
- Plant Diversity and Evolution
- Doctoral Education Challenges and Solutions
- Text and Document Classification Technologies
- Mangiferin and Mango Extracts
- Speech and Audio Processing
- Plant and fungal interactions
- Phytochemicals and Antioxidant Activities
- Chemical synthesis and alkaloids
- Fern and Epiphyte Biology
- Pharmacological Effects of Medicinal Plants
- Fungal Biology and Applications
- African Botany and Ecology Studies
- Ethnobotanical and Medicinal Plants Studies
- Music and Audio Processing
Stellenbosch University
2018-2022
University of South Africa
2022
As a contribution towards better understanding of phenolic variation in the genus Cyclopia (honeybush tea), collection 82 samples from 15 23 known species was analysed using liquid-chromatography-high resolution mass spectrometry (UPLC-HRMS) electrospray ionization (ESI) negative mode. Mangiferin and isomangiferin were found to be main compounds detected most samples, with exception C. bowiena buxifolia where none these detected. These xanthones absent seeds also illustrated consistent...
It is incumbent upon doctoral students that their work makes a substantive contribution to the field within which it conducted. Dissemination of this beyond dissertation, whether whilst studying or after graduation, necessary ensure does not remain largely dormant. While dissemination can take many forms, peer-reviewed journal articles are key medium by knowledge shared. We aimed establish proportion theses results in publications linking South African thesis metadata authored candidates. To...
Despite the common use of Thesium species as food and medicine prevailing systematic (taxonomic) difficulties genus, diversity phenolic compounds their chemophenetic value remain largely unknown. As part ongoing research on Thesium, composition were investigated at four taxonomic ranks: generic, infrageneric, interspecific infraspecific. Liquid chromatography–mass spectrometry, multivariate analyses, comparisons to DNA data manual investigations total ion chromatograms conducted for 156...
This Commentary provides an updated picture of the contribution female academics to university research output in South Africa over past 16 years. •From 2005 2020, participation and productivity women, especially black have increased, particularly areas agriculture engineering.• Despite substantial increases share female-authored publications academic staff, there remains a large gender gap.One key imperatives post-1994 science higher education system has been transformation human resource...
Hierarchical Text Classification (HTC) is a natural language processing task with the objective to classify text documents into set of classes from structured class hierarchy. Many HTC approaches have been proposed which attempt leverage hierarchy information in various ways improve classification performance. Machine learning-based require large amounts training data and are most-commonly compared through three established benchmark datasets, include Web Of Science (WOS), Reuters Corpus...
In this paper, the suitability of audio features for application in speech-music discrimination was evaluated to select a feature set that produces high mean accuracy classification algorithm, while also reducing total space. The first four standardized moments twelve were namely mean, variance, skewness and kurtosis Root Mean Square value, Short Time Energy Ratio, Zero Crossing Rate, Spectral Rolloff, Flux, Centroid, Entropy, 13 Mel Frequency Cepstral Coefficients (MFCC), Percentage Low...