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Regeneration and Tree Species Diversity of Sitakund Botanical Garden and Eco-Park,Chittagong,Bangladesh

Journal of Mountain Science 2014年第4期11卷 950-958页

作者： rajasree nindi Harald VACIK Institute of Forestry and Environmental Sciences (IFES) Chittagong University Department of Forest and Soil Sciences Institute of Silviculture University of Natural Resources and Life Sciences (BOKU) Peter Jordan Str. 82 A-1190 Vienna (Austria)

Anthropogenic disturbances influence plant regeneration and species diversity, which impact the conservation status of protected areas. A study was conducted in the Sitakund Botanical Garden and Eco-park （SBGE）, Chittagong, Bangladesh to analyze the natural regeneration and tree species diversity in disturbed and less disturbed zones. Stratified and systematic random sampling was used to select 50 sample plots from each of the two zones. A total number of 109 plant species from 43 families were recorded in the study; of which 93 species were of natural origin while the rest were planted. From the species with natural origin 66 were tree species, 9 were shrub species and 28 were climbers. Species richness, density of regeneration and disturbance index in the height classes （0- 0.5 m） and {dbh 〉 6 cm） indicated significant differences between the zones. The study analyzed how disturbances affect species diversity in the area. It was found that species richness and basal area are negatively related with disturbances. Moreover, density （N/ha） of trees was more likely to decrease with increasing tree height that reflects the huge demand of local people to harvest large trees as part of their income generating activities. The study findings have implications for future managementdecisions of the SGBE. To restore these ecosystems, management should focus on both biodiversity eonservation and providing benefits to local people without hampering forest ecosystems.

关键词： Human influence Species diversity Vegetation structure Regeneration Disturbanceindex

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Occurrence of pharmaceutical and personal care products(PPCPs)in wastewater and receiving waters in South Africa using LC-Orbitrap™MS

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Emerging Contaminants 2020年第1期6卷 250-258页

作者： Vimbai Mhuka Simiso Dube Mathew M.nindi Department of Chemistry The Science CampusCollege of ScienceEngineering and TechnologyUniversity of South AfricaFlorida CampusCnr Christiaan de Wet&Pioneer AvenueFlorida1709South Africa

There is continued interest in the occurrence and monitoring of emerging contaminants(ECs)in wastewater treatment plants(WWTPs)to assess their potential impact when released into the *** objective of this study was to determine the occurrence of pharmaceutical and personal care products(PPCPs)in WWTP influents and effluents and receiving river waters in Pretoria,South *** screening and identification of PPCPs in the samples was done using liquid chromatography(LC)coupled with high resolution mass spectrometry(HRMS)Orbitrap™HRMS,after clean-up and preconcentration with Waters Oasis®hydrophilic-lipophilic-balanced(HLB)solid phase extraction(SPE)*** the 156 target analytes screened in the study,120 could be satisfactorily determined under the study conditions,with 71 and 73 compounds being detected and quantified in the influent and effluent samples,*** in the influents ranged from

关键词： Emerging contaminants High resolution mass spectrometry Orbitrap Pharmaceutical personal care products Environmental waters

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Comparative study of a vitrinite-rich and an inertinite-rich Witbank coal (South Africa) using pyrolysis-gas chromatography

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International Journal of Coal Science & Technology 2019年第4期6卷 621-632页

作者： Ofentse M.Moroeng Vimbai Mhuka Mathew M.nindi RJames Roberts Nicola J.Wagner Department of Geology University of JohannesburgP.O.Box 524Auckland Park 2006South Africa Department of Chemistry College of Science Engineering and TechnologyUniversity of South AfricaP.O.Box 392Pretoria 0003South Africa Department of Geology University of PretoriaMineral Sciences BuildingPretoria 0002South Africa

This study aims to compare iso-rank vitrinite-rich and inertinite-rich coal samples to understand the impact of coal-forming processes on pyrolysis chemistry.A medium rank C bituminous coal was density-fractionated to create a vitrinite-rich and an inertinite-rich *** vitrinite-rich sample has 83 vol% total vitrinite (mineral-matter-free basis),whereas the inertinite-rich counterpart has 66 vol% total *** vitrinite-rich sample is dominated by collotelinite and ***,semifusinite,and inertodetrinite are the main macerals of the inertinite-rich *** chemistry was assessed using a pyrolysis gas chromatograph (py-GC) equipped with a thermal desorption unit coupled to a time of flight mass spectrometer (MS) (py-GC/MS) and solid-state nuclear magnetic resonance (13C CP-MAS SS NMR).The pyrolysis products of the coal samples are generally similar,comprised of low and high molecular weight alkanes,alkylbenzenes,alkylphenols,and alkyl-subtituted polycyclic aromatic hydrocarbons,although the vitrinite-rich sample is chemically more *** lack of diversity exhibited by the inertinite-rich sample upon pyrolysis may be interpreted to suggest that major components were heated in their geologic *** on the 13C CP-MAS SS NMR analysis,the inertinite-rich sample has a greater fraction of phenolics,reflected in the py-GC/MS results as substituted and unsubstituted *** greater abundance of phenolics for the inertinite-rich sample may suggest a fire-related origin for the dominant macerals of this *** C2-alkylbenzene isomers (p-xylene and o-xylene) were detected in the pyrolysis products for the vitrinite-rich and inertinite-rich samples,though more abundant in the *** presence of these in both samples likely reflects common source vegetation for the dominant vitrinite and inertinite rnacerals.

关键词： Py-TD-GC-TOFMS Main Karoo Basin Pyrolysis products 13C CP-MAS SS NMR Molecular chemistry Phenolics Xylene(C2-alkylbenzene)isomers

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Cardioprotective and hepatoprotective effects of Citrus hystrix peels extract on rats model

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Asian Pacific Journal of Tropical Biomedicine 2013年第5期3卷 371-375页

作者： Herwandhani Putri Standie Nagadi Yonika Arum Larasati nindi Wulandari Adam Hermawan Cancer Chemoprevention Research Center Faculty of PharmacyUniversitas Gadjah MadaSekip Utara Ⅱ

Objective:To observe the combination effect of doxorubicin and Citrus hystrix(kaffir lime's)peel ethanolic extract(ChEE)on blood serum alanine aminotransferase(ALT)and aspartate aminotransferase(AST)activity and cardio-hepato-histopathology of female Sprague Dawley ***:Doxorubicin and ChEE(5 rats per group)were administered in five groups of 3 rats each for 11 *** I:doxorubicin(dox)4.67 mg/kg body weight;Group II:dox+ChEE 500 mg/kg body weight;Group HI:dox+ChEE 1000 mg/kg body weight;Group IV:ChEE 1000 mg/kg body weight;Group V:untreated(control).Results:ChEE repaired cardiohistopathology profile of doxorubicin induced cardiotoxicity and hepatotoxicity rats,but did not repair neither hepatohistopathology profile nor reduce serum activity of ALT and ***:ChEE has potency to be developed as cardioprotector agent in chemotherapy.

关键词： Citrus hystrix D.C. Cardiohepatoprotector Histopathology Chemoterapy

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