Journal's Global Impact Factor Records
Our Global Impact Factor (GIF) is calculated according to the standard formula published by Clarivate Analytics (previously ISI). The following is an example for calculation of 2016 GIF.

A = 6 citations (number of times articles published in 2014 and 2015, cited in 2016).
B = 20 articles (total number of articles published in 2014 and 2015).
A/B = 0.300 (GIF for 2016).

GIF for subsequent years were calculated using similar method and the value is announced in July of the relevant year. The journal was started in 2014.

NOTE: Raw data used in this calculation can be accessed from the journal’s citation records by Google Scholar for verifications by third parties.

GIF for 2019
A = 47 citations
B = 99 articles
GIF for 2017 = 0.475
H-Index = 7
= 3
GIF for 2018
A = 64 citations
B = 141 articles
GIF for 2017 = 0.454
H-Index = 6
= 1
GIF for 2017
A = 36 citations
B = 90 articles
GIF for 2017 = 0.400
H-Index = 4
= 0
IF for 2016
A = 6 citations
B = 20 articles
GIF for 2016 = 0.300
H-Index = 2
= 0
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4th International Congress on Science and Technology 2021, InCo-SciTech 4. 29 - 30 July 2021. Ho Chi Minh City, Vietnam.


Current Issue - Vol 8, No 1, March 2021

Next Issue - Vol 8, No 2, June 2021

Most cited papers from Transactions on Science and Technology

Highlights from the Current Issue

Efficacy of Column Hydroponic System for Increasing Growth and Yield of Pak-choy (Brassica rapa L.) per Unit Area
Januarius Gobilik; Cathy Tening Rechard; Andrea Joyce Maludin; Md. Amirul Alam; Suzan Benedick. 2021. Transactions on Science and Technology, 8(1), 7 - 24.
Abstract Increasing the domestic production of Brassica vegetables is important to sustain the local food supply, maintain the healthy diets of the population, reduce the country's foreign exchange, and improve the local economy. In this study, a column hydroponic system (CHS) of 1.2 m L × 1.2 m W × 1.5 m H was built and tested to increase Brassica vegetable production per unit area. There were 16 rectangular polyvinyl chloride tubes (10.2 cm L × 5.1 cm W × 1.5 m H) positioned upright (PVC columns) at 30.0 cm apart in four rows. Each column had 36 planting cups (4 lines × 9 levels). The seeds of curly dwarf Pak-choy were germinated on mop yarns in the cups. The nutrient solution was supplied using a 0.5HP non-submersible pump. Data were recorded on day 37 by measuring the vegetable yield, development, growth, and quality. The data were analyzed using Microsoft Excel®2019 by performing one- and two-way ANOVAs, followed by post-hoc tests (α = 0.05). The vegetable yield/area of the CHS (12.7 kg/m2, or 400 plants/m2) was 60% higher than that of a raft hydroponic system (5.1 kg/m2, or 63 plants/m2), but the mean weight/plant was 62% lower than that of the latter system (31.3 g/plant vs. 82.1 g/plant). There were statistically significant (P < 0.05) effects of column horizontal position (CHP) or vegetable vertical location (VVL) on the parameters studied. However, the effects of CHP × VVL was statistically significant only on yield and leaf area. Pak-choy in outer columns facing the morning and afternoon sunlight directly or at the top were heavier (39.2 - 71.7 g/plant) than those in inner columns or at the bottom (8.8 - 20.3 g/plant). The CHS can be used effectively to increase Brassica vegetable production/area, but its full potential is yet to be achieved. Research is recommended to determine the ideal column spacing to achieve the best balance between plant/area and weight/plant to increase further the system's growth, yield, and quality of vegetables.
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Effects of Various Drying Processes on Malaysian Brown Seaweed, Sargassum polycystum Pertaining to Antioxidants Content and Activity
Yan Ying Neoh; Patricia Matanjun; Jau Shya Lee. 2021. Transactions on Science and Technology, 8(1), 25 - 37.
Abstract The objective of this study was to evaluate the effects of different drying methods on phytochemicals and in vitro antioxidant activity of brown seaweed, Sargassum polycystum. Six different drying methods employed in this study were freeze drying, oven drying at 40 °C, oven drying at 60 °C, sun drying, vacuum drying at 40 °C and vacuum drying at 60 °C. Five different polarity solvents, methanol, ethanol, acetone, ethyl acetate, cold water and hot water were used as extraction solvents to determinephytochemicals content for total phenolic content, total flavonoid content and total carotenoid content while that antioxidant activitywas assessed by employing ferric reducing antioxidant power (FRAP), 2,2-diphenyl-1-picrylhydrazyl radical scavenging activity (DPPH) and beta carotene bleaching (BCB) assay. Ethyl acetate extracts vacuum dried at 40 °C showed highest total phenolic content (58.54 ± 1.30 mg PGE g-1 dry extract), total flavonoid content (35.91 ± 1.54 mg RE g-1 dry extract), FRAP value 379.41 ± 1.17 µmol TE g-1 dry extract and DPPH EC50 values, 3.83 ± 0.18 mg mL-1 among all drying methods. Sun dried extracts possessed lowest retention of phytochemicals content and antioxidant activity among other drying methods. As a conclusion, S. polycystum was best dried by vacuum drying methodat 40 °C which has the higher retention of phytochemicals and antioxidant content.
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Articles in press

Articles that are peer reviewed and have been accepted but are not yet assigned to a volume and issue. When the final article is assigned to an issue of the journal, the "Article in Press" version will be removed and will appear in the associated journal issue.

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