Journal of Hunan Institute of Science and Technology最新文献_第7页

Study on the Effects of Multiple Matings in Coccinella transversalis for its Behaviour and Reproduction 横尾球菌多次交配对其行为和繁殖影响的研究

Journal of Hunan Institute of Science and Technology Pub Date : 2019-06-27 DOI: 10.3126/JIST.V24I1.24641

M. Bista

引用次数: 2

Crop Raiding Status by Assamese Monkeys (Macaca assamensis) along the Kaligandaki River, Western Nepal 尼泊尔西部卡利甘达基河沿岸阿萨姆猴(Macaca assamensis)的农作物袭击状况

Journal of Hunan Institute of Science and Technology Pub Date : 2019-06-27 DOI: 10.3126/JIST.V24I1.24639

S. Ghimire, M. Chalise

引用次数: 3

Removal and Recovery of Phosphate from Water and Wastewater Using Metal-Loaded Agricultural Waste-Based Adsorbents: A Review 含金属农业废弃物吸附剂去除和回收水、废水中磷酸盐的研究进展

Journal of Hunan Institute of Science and Technology Pub Date : 2019-06-27 DOI: 10.3126/JIST.V24I1.24640

M. R. Pokhrel, B. R. Poudel, R. Aryal, H. Paudyal, K. N. Ghimire

{"title":"Removal and Recovery of Phosphate from Water and Wastewater Using Metal-Loaded Agricultural Waste-Based Adsorbents: A Review","authors":"M. R. Pokhrel, B. R. Poudel, R. Aryal, H. Paudyal, K. N. Ghimire","doi":"10.3126/JIST.V24I1.24640","DOIUrl":"https://doi.org/10.3126/JIST.V24I1.24640","url":null,"abstract":"There is a growing research interest in the development of adsorbents based on agricultural wastes (AWs) for the removal of phosphate from waste water sources, which otherwise can cause eutrophication. Nevertheless, due to the lack of active exposed surface sites, raw AWs-based adsorbents are usually inefficient for the adsorption of phosphate from aquatic environment. Consequently, modification of raw adsorbents has been frequently used to improve their phosphate adsorption capacity. Of the various methods of modification, this review paper focused on most widely used chemical modification method. It presents a critical and comprehensive review of the literature on the effectiveness of metal-loaded agricultural wastes (MLAWs)-based adsorbents in removing and recovering of phosphate from waste waters. Mechanisms and factors affecting phosphate adsorption as well as phosphate desorption and regeneration from MLAW adsorbents are critically evaluates. If phosphate from waste waters can be of economical value, regeneration may partly overcome the future shortage of global phosphate rock reserves. It is evident from the literature survey presented herein that MLAWs-based adsorbents exhibited as potential adsorbent for the removal/recovery of phosphate from waste waters. However, there still needs a refined practical utility of these adsorbents on a commercial scale, which may serve as the novel, cost effective and environmentally benign methods of modification.","PeriodicalId":16072,"journal":{"name":"Journal of Hunan Institute of Science and Technology","volume":"45 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79496829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 18

Determinants of Distribution of Large Mammals in Seti River Basin, Tanahun District of Western Nepal 尼泊尔西部塔纳洪地区塞提河流域大型哺乳动物分布的决定因素

Journal of Hunan Institute of Science and Technology Pub Date : 2019-06-27 DOI: 10.3126/JIST.V24I1.24638

J. Adhikari, B. Bhattarai, T. Thapa

{"title":"Determinants of Distribution of Large Mammals in Seti River Basin, Tanahun District of Western Nepal","authors":"J. Adhikari, B. Bhattarai, T. Thapa","doi":"10.3126/JIST.V24I1.24638","DOIUrl":"https://doi.org/10.3126/JIST.V24I1.24638","url":null,"abstract":"Forest landscape in Seti River basin of Western Nepal is not conserved within the protected area network. Wildlife habitats in Seti River basin are more vulnerable due to high anthropogenic disturbance and habitat fragmentation. Present study mainly focused to evaluate the major factors that determine the distribution of large mammals in Seti River basin by walking through 34 line transects that covered a total of 59.89 km. The distribution of large mammals was greatly affected by habitat types, human disturbances, topography and altitude. Himalayan gorals were recorded in the steep grass covered areas where as Muntjacs were found in most of the habitats and slopes. There was low occurrence of all species nearer to the settlements and roads. Besides, water sources played a vital role in distribution of wildlife, as there were more occurrences of signs of large mammals nearby water resources. In the study area, community forests played a major role in the conservation of viable population of large mammals. However, habitat fragmentation due to scattered human settlements and degradation of foraging grounds such as grasslands by succession and invasion of alien plant species added more threats to the survival of large mammals. Therefore, such situation can be improved through the protection of connecting forest patches and scientific management of forests and grasslands.","PeriodicalId":16072,"journal":{"name":"Journal of Hunan Institute of Science and Technology","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78374522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Cost-Based Query Optimization in Centralized Relational Databases 集中式关系数据库中基于成本的查询优化

Journal of Hunan Institute of Science and Technology Pub Date : 2019-06-26 DOI: 10.3126/JIST.V24I1.24627

N. Paudel, Jagdish Bhatta

引用次数: 0

Screening and Optimization of Thermo-Tolerant Bacillus Sp. For Amylase Production and Antifungal Activity 耐热芽孢杆菌产淀粉酶及抗真菌活性的筛选与优化

Journal of Hunan Institute of Science and Technology Pub Date : 2019-06-26 DOI: 10.3126/JIST.V24I1.24628

S. Sapkota, S. Khadka, Aava Gautam, Rojina Maharjan, Ruby Shah, Sandhya Dhakal, Om Prakash Panta, S. Khanal, P. Poudel

{"title":"Screening and Optimization of Thermo-Tolerant Bacillus Sp. For Amylase Production and Antifungal Activity","authors":"S. Sapkota, S. Khadka, Aava Gautam, Rojina Maharjan, Ruby Shah, Sandhya Dhakal, Om Prakash Panta, S. Khanal, P. Poudel","doi":"10.3126/JIST.V24I1.24628","DOIUrl":"https://doi.org/10.3126/JIST.V24I1.24628","url":null,"abstract":"Amylases are starch degrading enzymes which are produced by plants, animals and microorganisms. Amylases produced by microorganisms have a wide range of industrial applications such as in pharmaceutical, food, textile and paper industries. However, there are still limitations in the isolation of amylase producing microorganisms. The objective of this study was to isolate the potent amylase producing Bacillus sp. from soil samples and evaluate their abilities for inhibiting the aflatoxin producing Aspergillus flavus. In this study, 30 soil samples were used. For the screening and identification of Bacillus strain, morphological and biochemical tests were performed. Iodine assay was done to screen the potent amylase producers. Two parameters (pH and temperature) were used to optimize the cultural conditions for the production of amylase. To determine the total reducing sugar, dinitrosalicylic acid (DNS) assay was used. Altogether 29 colonies were selected and identified as Bacillus spp out of which 16 were selected to determine enzyme activity by cup plate method. Four isolates (DK9, DK10, IM4 and KD7) showing highest amylolytic activities (16 mm, 12 mm, 14 mm and 14 mm zone of hydrolysis) were subjected for further study. Isolate KD7 showed the highest amylolytic activity (0.19 U/mL) compared to other isolates. Maximum amylase production was found at pH 6 and temperature 50° C (0.19 U/mL). Among these 4 isolates, DK9 and KD9 showed strong antagonistic activity against Aspergillus flavus while DK10 and IM4 showed moderate antifungal activities. Thus, the bacterial isolate KD7 was identified as the most potent strain for maximum amylase production.","PeriodicalId":16072,"journal":{"name":"Journal of Hunan Institute of Science and Technology","volume":"82 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84339941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Assemblage of Insects on Medicinal Plants: An Insight from ICIMOD Herbal Garden in Godavari of Lalitpur, Nepal 药用植物上的昆虫组合:来自尼泊尔拉利特普尔戈达瓦里ICIMOD草本花园的见解

Journal of Hunan Institute of Science and Technology Pub Date : 2019-06-26 DOI: 10.3126/JIST.V24I1.24626

D. R. Bhusal, Sweta Shrestha, K. Ghimire

{"title":"Assemblage of Insects on Medicinal Plants: An Insight from ICIMOD Herbal Garden in Godavari of Lalitpur, Nepal","authors":"D. R. Bhusal, Sweta Shrestha, K. Ghimire","doi":"10.3126/JIST.V24I1.24626","DOIUrl":"https://doi.org/10.3126/JIST.V24I1.24626","url":null,"abstract":"Present study was conducted within the herbal garden of International Centre for Integrated Mountain Development (ICIMOD) in Godawari of Kathmandu valley to explore the insect communities in medicinal plants. Five medicinal plants, viz. Rauvolfia serpentina (= Sarpagandha), Urtica dioca (= Sissnu), Zanthoxylum armatum (= Timur), Valeriana jatamansii (= Sungandhawal) and Mentha spicata (= Pudina) were selected for the study. Insects were randomly sampled during four seasons from September 2017 to June 2018 using different collecting techniques, like hand picking, pit-fall traps, net-sweeping and stem beating. A total of 869 insects individuals belonging to 42 different genera were collected and identified. It was found that the abundance of insects was high during spring season (299 insects comprising 35 % of collected species), followed by summer (255 insects comprising 29 % of collected species) and winter (219 insects comprising 25 % of collected species) seasons, and low during autumn season (96 insects comprising 11 % of collected species). It was further found that the abundance of insect species was temperature-dependent, but was independent of relative humidity. The maximum indicator species were present on M. spicata. Taxonomic distinctness (delta+) of insects was high on V. jatamansii, but low on U. dioca.","PeriodicalId":16072,"journal":{"name":"Journal of Hunan Institute of Science and Technology","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84536497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Data Protection in the EU and its Implications on Software Development outside the EU 欧盟的数据保护及其对欧盟以外软件开发的影响

Journal of Hunan Institute of Science and Technology Pub Date : 2019-06-26 DOI: 10.3126/JIST.V24I1.24620

Ralf Kneuper

引用次数: 0

Progress in Optoelectronic Oscillators 光电振荡器的研究进展

Journal of Hunan Institute of Science and Technology Pub Date : 2019-06-26 DOI: 10.3126/JIST.V24I1.24625

N. K. Raut, Jeffery Miller, J. Sharping

引用次数: 1

Antibacterial, Antidiabetic and Brine Shrimp Lethality Activities of Some Selected Medicinal Plants from Kavrepalanchok District of Nepal 尼泊尔kavrepalanchk地区部分药用植物抗菌、降糖和盐水对虾致死活性研究

Journal of Hunan Institute of Science and Technology Pub Date : 2019-06-26 DOI: 10.3126/JIST.V24I1.24629

K. Sharma, R. Kharel

{"title":"Antibacterial, Antidiabetic and Brine Shrimp Lethality Activities of Some Selected Medicinal Plants from Kavrepalanchok District of Nepal","authors":"K. Sharma, R. Kharel","doi":"10.3126/JIST.V24I1.24629","DOIUrl":"https://doi.org/10.3126/JIST.V24I1.24629","url":null,"abstract":"The methanol extracts of nine medicinal plants collected from Kavrepalanchok district of Nepal were subjected to their potential bioactivity viz. antibacterial, antidiabetic and toxicity tests. Antibacterial property of the extracts was evaluated against Gram-positive and Gram-negative bacteria by agar well diffusion method and antidiabetic activity was investigated by α-amylase inhibition assay. The toxicity of plant extracts was assessed by brine shrimp lethality test. All the nine different plant extracts showed antibacterial activity with the zone of inhibition (ZOI) ranging from 5 to 35 mm. Among the studied plant extracts, Psidium guajava showed the highest ZOI against Salmonella typhi (35 mm) while Melia azedarach was most effective against Staphylococcus aureus (22 mm). The percentage of α- amylase enzyme inhibition was found up to 88.56 ± 3.50 in dose dependent manner. The enzyme inhibitory concentration IC50 value of standard, acarbose was 166.01 μg/mL while the most effective anti-diabetic plant extract of Utrica dioica has 186.67 μg/mL. Moreover, various plant extracts depicted various levels of toxic activities; Curcuma longa demonstrated significant toxicity to Artemia salina with LC50 value 62.10 μg/mL, while Agerantina adenophora, P. guajava and M. azedarach showed moderate toxicity with 103.77, 109.37 and 383.58 μg/mL, respectively.","PeriodicalId":16072,"journal":{"name":"Journal of Hunan Institute of Science and Technology","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77393485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5