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Publisher: CCSE   (Total: 41 journals)   [Sort by number of followers]

Showing 1 - 41 of 41 Journals sorted alphabetically
Applied Physics Research     Open Access   (Followers: 6)
Asian Culture and History     Open Access   (Followers: 14)
Asian Social Science     Open Access   (Followers: 8)
Cancer and Clinical Oncology     Open Access   (Followers: 6)
Computer and Information Science     Open Access   (Followers: 14)
Earth Science Research     Open Access   (Followers: 9)
Energy and Environment Research     Open Access   (Followers: 12)
Engineering Management Research     Open Access   (Followers: 7)
English Language and Literature Studies     Open Access   (Followers: 20)
English Language Teaching     Open Access   (Followers: 30)
Environment and Natural Resources Research     Open Access   (Followers: 7)
Environment and Pollution     Open Access   (Followers: 12)
Global J. of Health Science     Open Access   (Followers: 10, SJR: 0.416, CiteScore: 1)
Higher Education Studies     Open Access   (Followers: 52)
Intl. Business Research     Open Access   (Followers: 6)
Intl. Education Studies     Open Access   (Followers: 10)
Intl. J. of Biology     Open Access   (Followers: 2)
Intl. J. of Business and Management     Open Access   (Followers: 16)
Intl. J. of Chemistry     Open Access   (Followers: 12)
Intl. J. of Economics and Finance     Open Access   (Followers: 15)
Intl. J. of English Linguistics     Open Access   (Followers: 12)
Intl. J. of Marketing Studies     Open Access   (Followers: 19)
Intl. J. of Psychological Studies     Open Access   (Followers: 5)
Intl. J. of Statistics and Probability     Open Access   (Followers: 5)
J. of Agricultural Science     Open Access   (Followers: 12)
J. of Education and Learning     Open Access   (Followers: 2)
J. of Educational and Developmental Psychology     Open Access   (Followers: 17)
J. of Food Research     Open Access   (Followers: 3)
J. of Geography and Geology     Open Access   (Followers: 14)
J. of Management and Sustainability     Open Access   (Followers: 8)
J. of Materials Science Research     Open Access   (Followers: 8)
J. of Mathematics Research     Open Access   (Followers: 6)
J. of Molecular Biology Research     Open Access   (Followers: 3)
J. of Plant Studies     Open Access   (Followers: 1)
J. of Politics and Law     Open Access   (Followers: 10)
J. of Sustainable Development     Open Access   (Followers: 19)
Mechanical Engineering Research     Open Access   (Followers: 16)
Modern Applied Science     Open Access   (Followers: 2)
Network and Communication Technologies     Open Access   (Followers: 4)
Review of European Studies     Open Access   (Followers: 11)
Sustainable Agriculture Research     Open Access   (Followers: 3)
Journal Cover
International Journal of Chemistry
Number of Followers: 12  

  This is an Open Access Journal Open Access journal
ISSN (Print) 1916-9698 - ISSN (Online) 1916-9701
Published by CCSE Homepage  [41 journals]
  • Synthesis of Analogues of Dicoumarol and Their Biological Evaluation

    • Authors: Julie Chineze Obi, Tagbo Emmanuel Ezenwa
      First page: 1
      Abstract: Both symmetrical (1a-f) and asymmetrical (2a-f) analogues of dicoumarol were synthesized in 20 – 86% yield by using microwave assisted one-pot protocol. Their ability to inhibit NAD (P)H:oxidorectase quinone 1 (NQO1) and cytotoxicity towards A549 small lung cancer cell line were evaluated. Interestingly, (E)-3-(2-hydroxynaphthalen-1-y)chroman-2,4-dione (2d) showed not only moderate inhibitory potency (IC50 = 20 ± 6 nM) towards NQO1 but also was toxic (IC50 = 9.2 ± 0.2 µM) towards the A549 small lung cancer cell line.
      PubDate: 2018-05-08
      DOI: 10.5539/ijc.v10n3p1
      Issue No: Vol. 10, No. 3 (2018)
       
  • Trace Metal Determination in Herbal Plants by Acid Digestion From Jeddah
           Market in Saudi Arabia

    • Authors: Basma G. Alhogbi
      First page: 8
      Abstract: The world is facing a serious issue with plants contaminated by trace metals. Therefore, a consideration is required due to its danger that impacts both humans and animals. Herbs are extensively used worldwide for their seasoning and therapeutic properties. This study aimed to estimate the level of trace metals (Fe, Zn, Pb, Cr, Cu, Ni) in selected customary herbs consumed in Saudi Arabia. The 5 samples of herbs were purchased from a local market in Jeddah City (Mint (Mentha), Basil (Ocimum), Arugula (Eruca sativa), Coriander (Coriandrum sativum) and Parsley (Petroselinum crispum)). Acid digestion was applied to the plant leaves and trace metals concentrations were determined using Inductively Coupled Plasma - Optical Emission Spectroscopy (ICP-OES). Metals were observed to be available in varied concentrations in the herb plant samples. The highest metal values, especially in Arugula (ES) 218.3±1.9 mg/kg and 24.4±0.09 mg/kg for Zn and Ni respectively, Cr was under detection limit, Coriander (CS) 148.5±1.8 mg/kg and 17.3±0.07 mg/kg for Fe and Pb respectively, Mint (ME) 28.6±0.26 mg/kg for Cu, while Basil (OC) was recorded below the (WHO) permissible limits 18.9± 0.06 mg/kg and 1.1± 0.003 mg/kg for Zn and Cr respectively, besides all metals were higher than the (WHO) allowed limit in Parsley (PC). The study found that most of the examined herbs contained hazardous levels of trace metals that exceeded the World Health Organization (WHO) permissible limits.
      PubDate: 2018-06-03
      DOI: 10.5539/ijc.v10n3p8
      Issue No: Vol. 10, No. 3 (2018)
       
  • The Cluster Valence Electrons (VE) Are Natural Numbers of Clusters
           Generated by K(N) Parameters: VE and K(N) Are Intertwined

    • Authors: Enos Masheija Rwantale Kiremire
      First page: 15
      Abstract: The paper presents a highly refined work on broad categorization of clusters using the series method with emphasis on cluster valence content. In this regard, the K(n) parameter plays a crucial role. The K(n) parameters are interrelated and have been utilized to generate a cluster map of clusters. The cluster map of skeletal elements and their clusters can be extended indefinitely. The elements refer to main group and transition metal elements. The inter-conversion of K(n) parameter map into a selected portion of cluster valence electron content map was done indicating the origin of the cluster valence electron numbers which are sometimes associated with certain characteristic geometries. The map indicates that the main group and transition metal elements and their clusters are all interlinked via either the K(n) map or the cluster valence electron content map.
      PubDate: 2018-06-03
      DOI: 10.5539/ijc.v10n3p15
      Issue No: Vol. 10, No. 3 (2018)
       
  • Kinetics and Mechanism Study of Oxidation of Ethylenediamine and
           Ethanolamine by Potassium Ferrate (VI) in Alkaline Media

    • Authors: Chaochao Chen, Jinhuan Shan, Xiaofang Li, Dan Su
      First page: 53
      Abstract: In this work, the kinetics of oxidation of Ethylenediamine and Ethanolamine by Potassium Ferrate (VI) has been studied by using stop –flow spectrometer under alkaline media. The results show that the oxidation-reduction reaction is a first-order to reactant and a negative fraction order to [OH-]. A convincing mechanism involving a slow response as the rate-controlling step is proposed and the rate equations derived from the mechanism was shown to fit all the experimental observations. The rate constants of the rate-controlling step and the thermodynamic activation parameters were calculated.
      PubDate: 2018-07-18
      DOI: 10.5539/ijc.v10n3p53
      Issue No: Vol. 10, No. 3 (2018)
       
  • South African Invasive Tree: Studies of the Chemical and Biological
           Profiles of Acacia Decurrens (Wild)

    • Authors: B. J Okoli, A. T Jummai, N Molefe, I Ledwaba, S. J Modis
      First page: 60
      Abstract: In this study, we aimed to profile the stem bark of Acacia decurrens biochemically. Extracts obtained by maceration were phytochemically screened, spectroscopically analysed with the aid of UV-visible, FT-IR, GC-MS, and, ICP-OES and subjected to primary biological assay. Spectra obtained from the UV-visible and FT-IR confirm the presence of n ® p*  which are characteristic of compounds with oxygenated backbones such as the glycoside, phenols, terpenoids, tannins, and flavonoids. On further analysis, the chromatogram revealed the presence of thirty-five major compounds of which eight bioactive compounds had previously been isolated. The metal profile of the stem bark registered high concentrations of Cr, K, and Fe. Quantitative phytochemical evaluation showed, large amount of tannins (30.87 – 55. 81 mgTAE/g), steroids (13.92-41.2%), and phenols (40.6 - 65.5 mgGAE/g) in all fractions. The ethyl acetate and methanol fractions were found to be rich sources of antibacterial compounds with MIC value of 12.5 μg/mL while the chloroform fraction is a potent antioxidant fraction with IC50 values of 37.00 ± 0.06 g/mL and 42.20 ± 0.72 µg/mL against DPPH and ABTS radicals, respectively. The presence of these secondary metabolites and the hyper-tolerance capacity for metals can be exploited pharmaceutically and for phytoremediation purpose, respectively.
      PubDate: 2018-07-18
      DOI: 10.5539/ijc.v10n3p60
      Issue No: Vol. 10, No. 3 (2018)
       
  • Contribution of Recycled Alumina Waste to Cement Strength and
           Microstructure Development

    • Authors: Suzan S. Ibrahim, Ayman A. Hagrass, Tawfik R. Boulos, Samir I. Youssef, Fouad I. El-Hosiny, Mohamed R. Moharam
      First page: 70
      Abstract: The role of alumina waste as a reactive pozzolan for the local Portland cement has been thoroughly investigated. The results showed that the initial and final setting times of the hardened blended pastes were reduced significantly by increasing the amount of the added alumina. In addition, the compressive strength and the hydraulic property measures of the hardened blends showed progressive improvement reaching approximately 42% and 23% after the early ages of hydration (1 and 3 days), respectively. According to such conditions, these cement blends could be applied in many concrete applications, such as high speed construction, rapid repair, frost prevention, tunneling, shoring, gas and oil well cementing, that require concrete to have rapid setting and strength development abilities.The improvement of the physico-mechanical characteristics and the hydration kinetics of the hardened blended pastes with the recycled alumina were explained after the microstructure study included the examinations of hydration product morphology and type, the thermal gravimetric (TG), the differential scanning calometry (DSC) and the differential thermo-gravimetric (DTG) thermographs analyses. The scanning electron microscope (SEM) was used to examine the microstructure and morphology of hydration products.
      PubDate: 2018-07-19
      DOI: 10.5539/ijc.v10n3p70
      Issue No: Vol. 10, No. 3 (2018)
       
 
 
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