Nepal Journal of Science and Technology最新文献_第8页

A Bayesian Estimation and Predictionof Gompertz Extension Distribution Using the MCMC Method 基于MCMC方法的Gompertz扩展分布的贝叶斯估计与预测

Nepal Journal of Science and Technology Pub Date : 2020-07-01 DOI: 10.3126/njst.v19i1.29795

A. Chaudhary, Vijay Kumar

引用次数: 6

Phytochemical Analysis and Antimicrobial Activity of Smilax ovalifoliaRoxb. Ex D. Don 卵形菝葜植物化学分析及抗菌活性研究。前任D.唐

Nepal Journal of Science and Technology Pub Date : 2020-07-01 DOI: 10.3126/njst.v19i1.29787

D. Paneru, M. Rajbhandari

{"title":"Phytochemical Analysis and Antimicrobial Activity of Smilax ovalifoliaRoxb. Ex D. Don","authors":"D. Paneru, M. Rajbhandari","doi":"10.3126/njst.v19i1.29787","DOIUrl":"https://doi.org/10.3126/njst.v19i1.29787","url":null,"abstract":"Hexane, dichloromethane, ethyl acetate, methanol and 50% aqueous methanol extracts of S. ovalifolia were screened for the presence of different classes of phytochemicals as well as their antibacterial activity. The phytochemical screening revealed the presence of phenolic, flavonoid and carbohydrate in methanol and 50% aqueous methanol extracts of S. ovalifolia. The antibacterial susceptibility was studied against E. coli and S. aureus. Among all the tested extracts, ethyl acetate extract showed good antibacterial activity against both bacteria. In the methanol and 50%, aqueous methanol extracts of S. ovalifolia, total phenolic, total flavonoid and total carbohydrate content were estimated, and free radical scavenging activity was determined. Total phenolic content was measured spectrophotometrically by using FolinCiocalteu reagent, total flavonoid content by using aluminium chloride and total carbohydrate content by using the anthrone method. Gallic acid was used as the standard for the calibration of phenolics, catechin for flavonoids and glucose for carbohydrates. The highest amount of phenolic and flavonoid were found in methanol extract (192.152±0.009 mg GAE/g extract and 78.188±2.719 mg CE/g extract), respectively. The highest amount of sugar was found in 50% methanol extract (190.585±2.445 mg GE/g extract). Methanol extract also showed good antioxidant activity (IC50 value 49.989 μg/ml) than 50% aqueous methanol extract (IC50 72.021 μg/ml). The GC-MS analysis of hexane extract of S. ovalifolia allowed the identification of 16 phyto-constituents based on retention time and the fragmentation pattern in the mass spectrum.","PeriodicalId":129302,"journal":{"name":"Nepal Journal of Science and Technology","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114305124","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: 2

Dynamics on the Pre-periodic Components of the Fatou Set of Three Transcendental Entire Functions and Their Compositions 三个超越全函数的Fatou集的前周期分量及其组成的动力学

Nepal Journal of Science and Technology Pub Date : 2020-07-01 DOI: 10.3126/njst.v19i1.29796

Bishnu H Subedi, A. Singh

引用次数: 2

Assessment of Arsenic Content in Deep Groundwater of Kathmandu Valley, Nepal 尼泊尔加德满都谷地深层地下水砷含量评价

Nepal Journal of Science and Technology Pub Date : 2020-07-01 DOI: 10.3126/njst.v19i1.29785

Sushila Gwachha, B. Acharya, Agni Dhakal, S. Shrestha, Tista Prasai Joshi

引用次数: 7

Effects of Fruits of Lapsi (Nepali Hog Plum) Choerospondias axillaris (roxb.) b.l.Burtt & a.w.Hill on Some Blood Parameters of Major Carp rohu Labeo rohita(H) During Intensive Aquaculture b.l.Burtt和a.w.Hill在集约化养殖过程中对主要鲤鱼rohu Labeo rohita(H)某些血液参数的影响

Nepal Journal of Science and Technology Pub Date : 2020-07-01 DOI: 10.3126/njst.v19i1.29801

S. Shakya, S. N. Labh

{"title":"Effects of Fruits of Lapsi (Nepali Hog Plum) Choerospondias axillaris (roxb.) b.l.Burtt & a.w.Hill on Some Blood Parameters of Major Carp rohu Labeo rohita(H) During Intensive Aquaculture","authors":"S. Shakya, S. N. Labh","doi":"10.3126/njst.v19i1.29801","DOIUrl":"https://doi.org/10.3126/njst.v19i1.29801","url":null,"abstract":"The complete blood cell count (CBC) is an important and powerful diagnostic tool to monitor the health status of fish in response to changes related to nutrition, water quality, and disease in response to therapy.Thus, the present study was about to know the effect of lapsi fruit pulp (Choerospondias axillaris) on some blood parameters in the fingerlings of rohu Labeo rohita cultured in Corona of Agriculture Hatchery farm, Chitwan, Nepal. Altogether eighteen hapas made of heavy-duty nylon net (1.5m3) were kept and placed inside the pond, distributed linearly, and then 270 fingerlings (@15 fishes/ hapa) were kept distributed randomly. Six practical diets like T1 (0.0 g kg-1), T2 (0.1 g kg-1), T3 (0.2 g kg-1), T4 (0.4 g kg-1), T5 (0.8 g kg-1) and T6 (1.6 g kg-1) were prepared. Feed containing 40% protein was supplemented with the ethanol extract of lapsi fruits. At the end of 90 days of the feeding trial, a significant difference (P< 0.05) in blood parameters were observed between the treated and control dietfed groups. Hemoglobin (Hb), white blood cells (WBCs), red blood cells (RBCs), packed cell volume (PCV), and other erythrocyte indices were recorded higher in the treated groups. RBC, WBC, Hct, and Hb were found significantly higher in the T4 (0.4 %) diet-fed group. The study showed a minimum of 0.4 % (0.4g kg-1) lapsi fruit extract needed in fish feeds to increase blood parameters to enhance growth and immunity.","PeriodicalId":129302,"journal":{"name":"Nepal Journal of Science and Technology","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117070477","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

Response Reduction Factor for Mansory Buildings 人为建筑物的响应减小系数

Nepal Journal of Science and Technology Pub Date : 2020-07-01 DOI: 10.3126/njst.v19i1.29802

J. Shrestha

引用次数: 1

Prevalence of Multidrug-Resistant and Extended-spectrum Betalactamase Producing Bacterial Isolates from Infected Wounds of patients in Kathmandu Model Hospital 加德满都示范医院患者感染伤口中产生多药耐药和广谱β -内酰胺酶细菌的流行情况

Nepal Journal of Science and Technology Pub Date : 2020-07-01 DOI: 10.3126/njst.v19i1.29798

K. Adhikari, S. Basnyat, B. Shrestha

{"title":"Prevalence of Multidrug-Resistant and Extended-spectrum Betalactamase Producing Bacterial Isolates from Infected Wounds of patients in Kathmandu Model Hospital","authors":"K. Adhikari, S. Basnyat, B. Shrestha","doi":"10.3126/njst.v19i1.29798","DOIUrl":"https://doi.org/10.3126/njst.v19i1.29798","url":null,"abstract":"The wound is an injury to living tissues caused by a cut, puncture, bite, blow, or other impacts. An infection is caused when germs enter wounds. This study was designed to isolate and identify the causative agents of wound infections and their antibiotic susceptibility pattern. A total of 339 samples were collected from January to June 2016 from Kathmandu Model Hospital, Kathmandu. Samples were inoculated on the Blood Agar and MacConkey agar plates were incubated at 37 °C for 24 hours. After incubation, all isolates were identified by using gram stain and biochemical methods. Antibiotic susceptibility tests were performed on Mueller Hinton agar plate by Kirby Bauer Disk Diffusion Technique. During the study period, altogether, 339 specimens were collected and processed as per the standard microbiological protocol. The overall prevalence of wound infection was 56.9%. Among 244 bacterial isolates, Escherichiacoli (24.2%) was most predominant bacteria followed by Staphylococcus aureus (19.7%), Coagulase-negative Staphylococcus (17.6%), Klebsiella pneumoniae (10.7%), Pseudomonas aeruginosa (8.6%), Acinetobacter spp (5.7%), Citrobacter freundii (4.9%) Proteus mirabilis (3.3%), Streptococcus viridans (2.0%), Klebsiella oxytoca (0.8%), Proteus vulgaris (0.4%), Serratia marcescens (0.4%), Enterobacter aerogens (1.2%), Enterobacter faecalis (0.4%). The most effective drug for Gram-negative bacteria and Gram-positive bacteria were amikacin and chloramphenicol, respectively. A total of Gram-negative bacteria, 77.55% were multidrug-resistant. The total Gram-negative bacteria most ESBL producers were E. coli (82.9%). We found S. aureus 33.3% of isolates were resistant to cefoxitin which indicates the increasing rate of Methicillin-resistant S. aureus (MRSA) in wound infection.","PeriodicalId":129302,"journal":{"name":"Nepal Journal of Science and Technology","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114816349","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

Mathematical Study of Impact of Travel Rates of Humans in the Transmission of Dengue Disease 人类旅行率对登革热传播影响的数学研究

Nepal Journal of Science and Technology Pub Date : 2020-07-01 DOI: 10.3126/njst.v19i1.29793

G. R. Phaijoo, D. B. Gurung

引用次数: 0

Study on Occupational Radiation Exposure at Different Hospitals in Nepal using ThermoluminescenceDosimetry 用热释光剂量法研究尼泊尔不同医院的职业辐射暴露

Nepal Journal of Science and Technology Pub Date : 2020-07-01 DOI: 10.3126/njst.v19i1.29799

P. Acharya, G. Chalise, B. Rijal, H. P. Lamichhane, B. R. Shah

引用次数: 2

Some Antiviral Mushrooms of Nepal 尼泊尔的一些抗病毒蘑菇

Nepal Journal of Science and Technology Pub Date : 2020-06-30 DOI: 10.3126/njst.v19i1.29767

M. Adhikari

{"title":"Some Antiviral Mushrooms of Nepal","authors":"M. Adhikari","doi":"10.3126/njst.v19i1.29767","DOIUrl":"https://doi.org/10.3126/njst.v19i1.29767","url":null,"abstract":"The present paper is a review based on published papers to highlight about some potential antiviral mushrooms, which are also found in Nepal. Nepalese mushrooms have not been yet analyzed and investigated so far for their antiviral properties except antioxidant and ACE-Inhibition sources on 62 Nepalese mushrooms as evidence-based complementary and alternative medicine. The published paper from abroad includes the species like: Calvatia gigantia, Cordyceps militaris, Cortinarius caperatus, Fomes fomentarius, Ganoderma lucidum, Grifola frondosa, Hericium erinaceus, Inonotus hispidus, Inonotus obliquus, Lentinula edodes, Omphalotus illudens, Ophiocordyceps sinensis, Phellinus ignarius, Pleurotus citrinopileatus, Pleurotus eryngii. Pleurotus ostreatus, Polyporus umbellatus, Russula delica. Schizophyllum commune, Scleroderma citrinum, Tremella sp. and Trametes versicolor, which are also found in the natural temperate (Schima – Castanopsis Rhododrendron – Quercus) forests of Kathmandu valley. This paper may provide the researchers a glimpse to the aspects of experiment and lead to investigate on medicinal, antiviral and antibacterial properties of mushrooms found in Nepal. Gautam & Adhikari (2007) have screened Ophicordyceps sinensis for its chemical compound.","PeriodicalId":129302,"journal":{"name":"Nepal Journal of Science and Technology","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115984682","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: 3