Open Access Library Journal最新文献_第9页

A Comparative Study of Physico-Chemical Parameter in Glacial Melt Water, Ponkar Glacier, Nepal 尼泊尔Ponkar冰川融水理化参数的比较研究

Open Access Library Journal Pub Date : 2021-02-24 DOI: 10.4236/OALIB.1107160

Sandeep Shrestha, R. Bhandari, Ashish Bashyal, Nischal Shrestha

{"title":"A Comparative Study of Physico-Chemical Parameter in Glacial Melt Water, Ponkar Glacier, Nepal","authors":"Sandeep Shrestha, R. Bhandari, Ashish Bashyal, Nischal Shrestha","doi":"10.4236/OALIB.1107160","DOIUrl":"https://doi.org/10.4236/OALIB.1107160","url":null,"abstract":"We conducted a detailed study in comparing physico-chemical parameters of glacier melt water between two years (2016 & 2019) in upstream sites with an elevation ranging from 4100 m to 3550 m above sea level of Ponkar glacier, Manang district, Nepal. We conducted onsite testing of physical parameter like pH, electrical conductivity, total dissolved solids, turbidity by using multiprobes and chemical parameters like anions, cations, total silica and heavy metals were analyzed following standard methods from APHA, AWWA, WEF (2012). The mean concentration of total silica was found to be higher in upstream sites than downstream. The elemental ratio Ca/Si was found to be higher in glacial melt water with low elemental values for K/Na, Na/Cl and K/Cl. The average concentration of parameters like electrical conductivity, turbidity, total hardness in glacier melt water was recorded to be higher in year 2019 than 2016. The mean concentration of anions and heavy metal was recorded to be higher in year 2016 than 2019. This study has provided a baseline information in comparing physico-chemical parameters in glacial melt water of Ponkar glacier and will be helpful in mitigating adverse impacts of climate change in Nepal’s glacier.","PeriodicalId":19593,"journal":{"name":"Open Access Library Journal","volume":"6 1","pages":"1-10"},"PeriodicalIF":0.0,"publicationDate":"2021-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87747773","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

Elastic Layer on the Elastic Half-Space: The Solution in Matrixes 弹性半空间上的弹性层:矩阵的解

Open Access Library Journal Pub Date : 2021-02-24 DOI: 10.4236/OALIB.1107191

I. P. Dobrovolsky

引用次数: 0

The Relationship between Green Supply Chain Management and Profitability 绿色供应链管理与盈利能力的关系

Open Access Library Journal Pub Date : 2021-02-22 DOI: 10.4236/OALIB.1105892

Dina Allam, E. Elseify, Amr Youssef, N. Khourshed

{"title":"The Relationship between Green Supply Chain Management and Profitability","authors":"Dina Allam, E. Elseify, Amr Youssef, N. Khourshed","doi":"10.4236/OALIB.1105892","DOIUrl":"https://doi.org/10.4236/OALIB.1105892","url":null,"abstract":"In today’s business environment, companies are facing increased pressure from different sources, such as consumers and communities, stricter governmental regulations and scarcity of resources; to enhance their sustainable behavior. This escalating global awareness of the impact of manufacturing and operational processes on the environment has translated into increased managerial action to balance incorporates economic, financial and environmental performance. Green Supply Chain Management (GSCM) has emerged as an important organizational philosophy to achieve targeted economic and market objectives while reducing environmental risk, reducing cost, optimizing resources and enhancing operations throughout the supply chain. Green supply chain management practices, activities, and their impact on different aspects of corporate performance have been gaining increased attention from academia, industry and customers. The current research aims to investigate the effect of GSCM practices; Greenhouse Emissions, Recycling, Waste, and Renewable Energy on firms’ profitability. Results showed that waste had a significant negative impact on the profitability measured by return on equity which implied that companies should strive to reduce their waste to be able to increase their profitability.","PeriodicalId":19593,"journal":{"name":"Open Access Library Journal","volume":"545 1","pages":"1-15"},"PeriodicalIF":0.0,"publicationDate":"2021-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77189890","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: 11

Probit Model Analysis of Tourists’ Revisit Intention to Nepal 游客尼泊尔再游意愿的Probit模型分析

Open Access Library Journal Pub Date : 2021-02-19 DOI: 10.4236/OALIB.1107210

Noora Shrestha

引用次数: 0

Sacro-Coccygian Teratoma: About a Case Reported in a Context with a very Limited Technical Plate in Yakoma, Nord-Ubangi, Democratic Republic of Congo 骶骨-尾骨畸胎瘤:关于在刚果民主共和国北乌班吉雅科马技术板非常有限的背景下报告的一个病例

Open Access Library Journal Pub Date : 2021-02-01 DOI: 10.4236/OALIB.1107084

Gaspard Makambo Mohilo, Vincent Danvene Gonda, Maurice Masoda Nyamalyongo

引用次数: 0

Boxing Match Decisions as Influenced by the Practitioner Body Weight 拳击运动员体重对拳击比赛决策的影响

Open Access Library Journal Pub Date : 2021-02-01 DOI: 10.4236/OALIB.1107159

A. M. N. Tshibangu

{"title":"Boxing Match Decisions as Influenced by the Practitioner Body Weight","authors":"A. M. N. Tshibangu","doi":"10.4236/OALIB.1107159","DOIUrl":"https://doi.org/10.4236/OALIB.1107159","url":null,"abstract":"In 99 of the top 100 male professional boxers enrolled in the present study, weight division midpoints are linked by 1) an average strength correlation with the number of non-knockout wins; 2) weak correlations with the number of all wins pooled together, the number of knockout wins as well as with the number of draws; and 3) strong correlations with the number of all losses pooled together, the number of knockout losses, as well as the number of non-knockout losses. Wins arithmetic mean values are lower than those of losses but higher than those of draws. Being weight division midpoints the independent variable, losses are linked with it with correlations stronger than those that link it with wins. Thus, 1) variables other than body weight could influence more the wins than the losses and 2) improving body weight could contribute less to increasing wins numbers than to decreasing losses numbers. As competition draws near, the selector must make sure that values shown by the weight as well as other variables (physical or non-physical) about each boxer are not far from values that could allow an ideal pugilistic performance. As average weight of boxers may vary with the passing time, the validity of conclusions drawn from the present study should be examined yearly within sight of possible necessary modifications.","PeriodicalId":19593,"journal":{"name":"Open Access Library Journal","volume":"11 1","pages":"1-14"},"PeriodicalIF":0.0,"publicationDate":"2021-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75880786","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

Power and Chebyshev Series Transformation Formulas with Applications to Solving Ordinary Differential Equations via the Fröbenius and Taylor’s Methods 幂和切比雪夫级数变换公式及其在Fröbenius和泰勒方法求解常微分方程中的应用

Open Access Library Journal Pub Date : 2021-02-01 DOI: 10.4236/OALIB.1107142

H. Nyengeri, R. Nizigiyimana, Jean-Pierre Mutankana, Henry Bayaga, Ferdinand Bayubahe

引用次数: 1

Natural Killer Cell-Based Immunotherapy against Solid Cancer 基于自然杀伤细胞的实体癌免疫疗法

Open Access Library Journal Pub Date : 2021-02-01 DOI: 10.4236/OALIB.1107056

Pin Lv, Wenrui Li, Ruoyu Wang, Guojun Huang, Yi Zhu, Qiqiang Tao

{"title":"Natural Killer Cell-Based Immunotherapy against Solid Cancer","authors":"Pin Lv, Wenrui Li, Ruoyu Wang, Guojun Huang, Yi Zhu, Qiqiang Tao","doi":"10.4236/OALIB.1107056","DOIUrl":"https://doi.org/10.4236/OALIB.1107056","url":null,"abstract":"As a kind of important innate lymphocytes in vivo, Natural killer (NK) cells have a rapid and efficient capacity to recognize and destroy tumor cells, senescent cells and virus-infected cells. In the past decades, NK cells have been widely applied in the treatment of hematological malignancies in clinic, even solid tumors. Successful results have been made against hematological malignancies (NCT00697671, NCT00990717, NCT00145626), but also a number of considerable challenges have been encountered during this period, such as poor outcomes in the treatment of solid tumors, difficult to migrate to and infiltrate into tumor sites, little functioning NK cell was seen in tumor stroma. Now we know tumor microenvironment has great influence on NK cell function, phenotype and activation, and it can finally give rise to NK cell dysfunction or/and exhaustion. Many strategies have been made to try to overcome those drawbacks. In this review, we discuss the current strategies to increase the NK cell-mediated tumor cell killing capacity and homing to the solid tumor site with the aim of heightening the clinical outcome in NK cell-based immunotherapy against solid cancer.","PeriodicalId":19593,"journal":{"name":"Open Access Library Journal","volume":"6 1","pages":"1-16"},"PeriodicalIF":0.0,"publicationDate":"2021-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78690052","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

Dose Load during Angiographic Procedures 血管造影过程中的剂量负荷

Open Access Library Journal Pub Date : 2021-02-01 DOI: 10.4236/OALIB.1107109

N. Ivanova, Javor Ivanov

{"title":"Dose Load during Angiographic Procedures","authors":"N. Ivanova, Javor Ivanov","doi":"10.4236/OALIB.1107109","DOIUrl":"https://doi.org/10.4236/OALIB.1107109","url":null,"abstract":"On basis of dosimetric measurement, this article compares the radiation doses received by the main interventional cardiologist during the angiographic procedures. The dose load during three procedures is compared—LAD-stenting, LCx-stenting and RCA-stenting. An angiographic X-ray system Philips Allura Xper FD10 (with G-arm) was used. The dose obtained was measured with an X-ray-Gamma Dosimeter 27091. During each procedure, two modes of the equipment are used—radiography and fluoroscopy. The dose measurements were made for the respective projections of each angiographic procedure and for the operation modes of the equipment used during the respective procedure at three measurement points on the operator’s body—head, gonads and feet and at three position of the patient’s table—lowest, highest and zero. The results obtained from the calculations, based on the measured dose values, show maximum dose load in the procedure that uses the radiographic mode of operation for the longest time, namely RCA-stenting. The other two procedures have the same time on radiography and fluoroscopy. From them a higher dose load was obtained for the procedure LAD-stenting. Of the three procedures studied, the lowest dose load is obtained for the procedure LCx-stenting.","PeriodicalId":19593,"journal":{"name":"Open Access Library Journal","volume":"4 1","pages":"1-13"},"PeriodicalIF":0.0,"publicationDate":"2021-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86619521","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

Optimization of Carbamazepine-Succinic Acid Cocrystal Preparation Using Quality by Design Approach 设计法优化卡马西平-琥珀酸共晶制剂的质量

Open Access Library Journal Pub Date : 2021-02-01 DOI: 10.4236/OALIB.1107074

Ying Xia, Chengjun Jiang, Jinna Zhang

引用次数: 1