Nepal Journal of Science and Technology最新文献_第6页

The Mineralization and Structural Geology of the Porphyry Copper Deposits of Pakistan 巴基斯坦斑岩型铜矿床的成矿作用及构造地质

Nepal Journal of Science and Technology Pub Date : 2021-10-10 DOI: 10.3126/njst.v20i1.39449

S. T. H. Shah, N. G. Khan, Muhammad Imran Hafeez Abbasi, Kamran Tabassum, Syed Khaizer Wahab Shah

引用次数: 0

Application of Multivariate Approaches to the Hydro-chemical Assessment of the Ghodaghodi Lake, Sudurpaschim Province, Nepal 多元方法在尼泊尔苏杜尔帕西姆省戈达戈蒂湖水化学评价中的应用

Nepal Journal of Science and Technology Pub Date : 2021-10-10 DOI: 10.3126/njst.v20i1.39390

Ramesh Raj Pant, Khadka Bahadur Pal, K. Bishwakarma, Lal B Thapa, A. Dangol, B. Dawadi, P. Poudel, B. Bhattarai, Tarka Raj Joshi, Youb Raj Bhatt

{"title":"Application of Multivariate Approaches to the Hydro-chemical Assessment of the Ghodaghodi Lake, Sudurpaschim Province, Nepal","authors":"Ramesh Raj Pant, Khadka Bahadur Pal, K. Bishwakarma, Lal B Thapa, A. Dangol, B. Dawadi, P. Poudel, B. Bhattarai, Tarka Raj Joshi, Youb Raj Bhatt","doi":"10.3126/njst.v20i1.39390","DOIUrl":"https://doi.org/10.3126/njst.v20i1.39390","url":null,"abstract":"Wetlands are considered the most diverse and productive ecosystems in the world, providing life-sustaining ecological services. Hydrochemical variables of the Ghodaghodi Lake situated in Far west Nepal were studied using multivariate statistical approaches to investigate the characteristics of water quality of the lake. A total of 10water samples were collected and analyzed for water temperature, pH, electrical conductivity, total dissolved solids, total hardness, salinity, dissolved oxygen, major ions, and dissolved Si in the pre-monsoon season during 2017.The water quality assessment was carried out by applying sodium percentage, sodium adsorption ratio, permeability index, Kelly’s ratio, magnesium adsorption ratio, action ratio of soil structural stability, and water quality index. Multivariate statistical techniques were used to evaluate the geochemical and anthropogenic processes and to identify factors influencing the ionic concentrations. The results revealed that the water was slightly alkaline with low ionic strength and remarkable spatial variations. The hydrochemistry of the lake was mainly controlled by rock weathering as the dominant Ca2+-HCO3- facies. The principal component analysis provided three major components exhibiting the diverse sources of natural and anthropogenic chemicals, including agricultural fertilizers, leakage of sewages near the human settlements, etc. The measured hydrochemical parameters indicate that lake water lies within the safe drinking water and irrigational standards. However, special consideration should be taken to control the concentrations of NO3- due to increasing anthropic activities.","PeriodicalId":129302,"journal":{"name":"Nepal Journal of Science and Technology","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116254845","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

Scientific Uncertainty and Biodiversity Inventory 科学不确定性和生物多样性清单

Nepal Journal of Science and Technology Pub Date : 2021-10-10 DOI: 10.3126/njst.v20i1.39446

I. Subedi

引用次数: 0

Applications of Multiparameter Eigenvalue Problems 多参数特征值问题的应用

Nepal Journal of Science and Technology Pub Date : 2021-10-10 DOI: 10.3126/njst.v20i1.39434

N. Bora

引用次数: 2

Factors of Production Influencing Gross Domestic Product in Nepal 影响尼泊尔国内生产总值的生产要素

Nepal Journal of Science and Technology Pub Date : 2021-10-10 DOI: 10.3126/njst.v20i1.39389

P. Jha, Shiva Chandra Dhakal

引用次数: 0

Potential Lethal Co-infections in COVID-19: A Study Based on Literature Review COVID-19潜在致命性合并感染:基于文献综述的研究

Nepal Journal of Science and Technology Pub Date : 2021-10-10 DOI: 10.3126/njst.v20i1.39448

Shivjee Sah, Arjun Ghimire, R. Sah, Pradeep Kumar Sah, Neena Caplash, Prince Sharma

{"title":"Potential Lethal Co-infections in COVID-19: A Study Based on Literature Review","authors":"Shivjee Sah, Arjun Ghimire, R. Sah, Pradeep Kumar Sah, Neena Caplash, Prince Sharma","doi":"10.3126/njst.v20i1.39448","DOIUrl":"https://doi.org/10.3126/njst.v20i1.39448","url":null,"abstract":"Co-infection with other respiratory pathogens has been reported in patients with COVID-19. Common respiratory pathogens can infect as co-pathogens during SARS-nCoV-2 infections. The aim of this article is to spread knowledge regarding possible co-infections during COVID-19, and reduce their occurrence. Google scholar was used to search the literature for possible co-infections in the people with COVID-19 and reviewed the existing published data. In most cases, co-infections are common due to Streptococcus pneumoniae, Staphylococcus aureus, Klebsiella pneumoniae, Mycoplasma pneumoniae, Chlamydia pneumonia, Legionella pneumophila, and Acinetobacter baumannii.Prevalence of fungal and viral co-infections is low. However, Candida species and Aspergillus flavusare the common co-infective fungi. Viruses such as Influenza, Corona virus, Rhinovirus/ Enterovirus, Parainfluenza, Metapneumo virus, Influenza B virus, and Human immunodeficiency virus have also been reported as co-infecting agents during COVID-19. Influenza A was one of the most common co-infective viruses, which may have caused initial false-negative results of a real-time RT-PCR for severe acute respiratory syndrome corona virus 2 (SARS-CoV-2). The prevalence of co-infections could be up to 50% among non-survivors. Only newly developed syndromic multiplex panels that incorporate SARS-CoV-2 may facilitate the early detection of co-infections. The suitable antimicrobial agents can be recommended for the co-infections caused by other respiratory pathogens during COVID-19.","PeriodicalId":129302,"journal":{"name":"Nepal Journal of Science and Technology","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115590508","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

Gynaecological Problems among Elderly Women Living in Old Age Homes of Kathmandu Valley 加德满都谷地养老院老年妇女的妇科问题

Nepal Journal of Science and Technology Pub Date : 2021-10-10 DOI: 10.3126/njst.v20i1.39439

M. V. Shrestha, S. Joshi

{"title":"Gynaecological Problems among Elderly Women Living in Old Age Homes of Kathmandu Valley","authors":"M. V. Shrestha, S. Joshi","doi":"10.3126/njst.v20i1.39439","DOIUrl":"https://doi.org/10.3126/njst.v20i1.39439","url":null,"abstract":"Ageing is a natural process. The elderly population is increasing in Nepal.When there is presence of diseases, physical inability, and financial harshness, the elderly in Nepal have to face many problems. This study was thus conducted to assess the socio-economic milieu and spectrum of gynaecological problems among women living in old age homes of Kathmandu valley. For this a cross sectional study was conducted in 21old age homes of three districts of Kathmandu valley. In this study, they were 234 particants. Privacy and confidentiality of information about the individual were strictly maintained. One-third of the aged women living in the old age homes belonged to 70-80 years.50.9% were from outside Kathmandu valley, while 49.1% were from the valley. The elderly were mostly not visited by their relatives and friends. Most of them (74.4%) were interested in praying than other activities. Out of the total Urine samples (190), 68.4% were normal, and 9.4% had a urinary tract infection. There were only 15.6% uterine prolapse cases. Out of total, 70.9% of Pap smear report was normal, while 25.1% had inflammatory smear. This study revealed that the old age homes have become a shelter for most of elderly women. The socio-economic condition was poor. Gynaecological probems like UTI, Urinary incontinence were not high but the prolapse cases (uterine proplase, cystocele, rectocele) were remarkably high. Cervical cancer screening through Pap smear showed negative results.","PeriodicalId":129302,"journal":{"name":"Nepal Journal of Science and Technology","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126864124","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: 0

Green Synthesis of Silver Nanoparticles using Medicinal Plants BerberisAsiatica and Cassia Fistula and Evaluation of Antioxidant and Anti-bacterial Activities 利用药用植物小檗和决明子绿色合成纳米银及其抗氧化和抗菌活性评价

Nepal Journal of Science and Technology Pub Date : 2021-10-10 DOI: 10.3126/njst.v20i1.39384

Deegendra Khadka, Rachana Regmi, Mitesh Shrestha, Megha Raj Banjara

{"title":"Green Synthesis of Silver Nanoparticles using Medicinal Plants BerberisAsiatica and Cassia Fistula and Evaluation of Antioxidant and Anti-bacterial Activities","authors":"Deegendra Khadka, Rachana Regmi, Mitesh Shrestha, Megha Raj Banjara","doi":"10.3126/njst.v20i1.39384","DOIUrl":"https://doi.org/10.3126/njst.v20i1.39384","url":null,"abstract":"The application of silver nanoparticles in various sectors including health related field is remarkably profound. Nowadays, the research of synthesizing metal nanoparticles (MNPs) using plant extracts is fascinating field as it offers the eco-friendly and cost-effective method for nanoparticle synthesis. In this study, we synthesized silver nanoparticles (AgNPs) using methanolic extract of B.asiatica and C. fistula regarding their ethnomedical importance. The synthesized AgNPs were characterized by UV-Visible spectroscopy, Fourier transform infrared spectroscopy (FTIR) and X-ray diffractometer (XRD). UV-vis spectroscopy exhibited the characteristic Surface Plasmon Peak of silver nanoparticle~420 nm.FTIR data were measured to get a preliminary idea on the functional groups responsible for the stabilization of AgNPs. XRD data confirmed the natural crystal structure with a face centered cubic of AgNPs. The antibacterial activity of biosynthesized AgNPs was assessed by testing promptly available gram-positive Staphylococcus aureus and gram-negative Escherichia coli bacterial strain and antioxidant activity was calculated by DPPH assay. The overall outcomes of the studies concluded that the application of the biogenic synthesis of AgNPs of B. asiaticaas an antioxidant and antibacterial agent is more potent showing IC50 value 65.1±1.30 μg/mL and the highest zone of inhibition 15 mm in diameter against S. aureus.","PeriodicalId":129302,"journal":{"name":"Nepal Journal of Science and Technology","volume":"241 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132324714","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

Production and Economic Feasibility of Hydroponics Maize Fodder on Performance of Piglets 水培玉米饲料的生产及其对仔猪生产性能的经济可行性

Nepal Journal of Science and Technology Pub Date : 2021-10-10 DOI: 10.3126/njst.v20i1.39445

S. Upreti, R. Ghimire, M. R. Tiwari, Niraj Banskota

{"title":"Production and Economic Feasibility of Hydroponics Maize Fodder on Performance of Piglets","authors":"S. Upreti, R. Ghimire, M. R. Tiwari, Niraj Banskota","doi":"10.3126/njst.v20i1.39445","DOIUrl":"https://doi.org/10.3126/njst.v20i1.39445","url":null,"abstract":"An experiment was conducted to evaluate the effects of hydroponics maize fodder on growth and nutrient digestibility of weaned piglets from July 1st, 2017 to August 11th, 2017, for six weeks. The experiment consisted of 75 days old, 15 crossbreed piglets (Duroc x Nagpuri & Duroc) in a Completely Randomized Design with three treatments and five replications. Treatment 1 (T1) contained 100% concentrate feed, Treatment 2 (T2) 90% concentrate feed and 10% hydroponics maize fodder and Treatment 3 (T3) 80% concentrate feed and 20% hydroponics maize fodder in the diet. The study revealed that hydroponics maize fodder contained DM 13.80%, CP 12.54%, NDF 47.04%, and ADL 16.51%. The treatments had non-significant effect (P > 0.05) on daily weight gain, final weight and feed conversion ratio of the piglets. However, piglets fed with 90% concentrate and 10% hydroponics maize fodder had the highest final weight (35.8±5.0 kg), while the lowest (33.6±5.00 kg) was recorded in piglets fed with 80% concentrate and 20% hydroponics maize fodder. The cost of hydroponics maize fodder production was Rs. 20.62 per kg, which was higher than the cost in the Indian context. The difference in Feed Conversion Ratio (FCR) was also not significant. However, piglets fed with T2 (1:2.58) diet recorded higher FCR than T3 (1:2.56) and T1 (1:2.51). In conclusion, the inclusion of hydroponics maize fodder in piglets diet appeared promising in growth, nutrient digestibility and cost of production.","PeriodicalId":129302,"journal":{"name":"Nepal Journal of Science and Technology","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133338379","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

Evaluation of Potato Genotypes for Plant and YieldCharactersin Field at Dailekh 大田马铃薯株系及产量性状基因型评价

Nepal Journal of Science and Technology Pub Date : 2021-10-10 DOI: 10.3126/njst.v20i1.39380

Binod Prasad Luitel, Bishnu Bahadur Bhandari, B. Thapa

{"title":"Evaluation of Potato Genotypes for Plant and YieldCharactersin Field at Dailekh","authors":"Binod Prasad Luitel, Bishnu Bahadur Bhandari, B. Thapa","doi":"10.3126/njst.v20i1.39380","DOIUrl":"https://doi.org/10.3126/njst.v20i1.39380","url":null,"abstract":"A field experiment was conducted at Horticulture Research Station (HRS), Dailekh, in Mid-Western hills of Nepal during 2019 and 2020, to evaluate the performance of ten potato genotypes for plant, and tuber yield characters. The potato genotypes were evaluated during spring season in a randomized complete block design with three replications. The genotypes showed highly significant difference for all the traits except tuber emergence. The mean squares for the year were also significant for all the traits except tuber emergence, stem numberplant -1 and total tuber yield. The interaction between genotypes and years did not show significant differences in all the traits except stem numberplant -1. Genotype CIP392797.22 produced more marketable yield (27.5 tha -1) and total tuber yield (30.2tha -1) than all other genotypes. The genotype CIP392797.22 is characterized as medium maturing, oval-shaped and dark red-skinned one with shallow eye depth in the tuber, and it imparted 13.2% higher marketable yield than Kufri Jyoti (24.3 tha -1). Thus, the genotype CIP392797.22 is recommended to evaluate on-farm for the verification and up-scaling among farmers at Mid-Western Nepal.","PeriodicalId":129302,"journal":{"name":"Nepal Journal of Science and Technology","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131984870","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: 0