发布求助
文献互助 智能选刊 最新文献

Experimental Results最新文献

筛选
英文 中文
Variational assimilation of web camera-derived estimates of visibility for Alaska aviation 阿拉斯加州航空能见度网络相机估算的变分同化
Experimental Results Pub Date : 2021-03-15 DOI: 10.1017/exp.2020.66
J. Carley, Michael P. Matthews, M. Morris, Manuel S. F. V. De Pondeca, Jenny Colavito, Runhua Yang
{"title":"Variational assimilation of web camera-derived estimates of visibility for Alaska aviation","authors":"J. Carley, Michael P. Matthews, M. Morris, Manuel S. F. V. De Pondeca, Jenny Colavito, Runhua Yang","doi":"10.1017/exp.2020.66","DOIUrl":"https://doi.org/10.1017/exp.2020.66","url":null,"abstract":"Abstract The Real Time Mesoscale Analysis (RTMA), a two-dimensional variational analysis algorithm, is used to provide hourly analyses of surface sensible weather elements for situational awareness at spatial resolutions of 3 km over Alaska. In this work we focus on the analysis of horizontal visibility in Alaska, which is a region prone to weather related aviation accidents that are in part due to a relatively sparse observation network. In this study we evaluate the impact of assimilating estimates of horizontal visibility derived from a novel network of web cameras in Alaska with the RTMA. Results suggest that the web camera-derived estimates of visibility can capture low visibility conditions and have the potential to improve the RTMA visibility analysis under conditions of low instrument flight rules and instrument flight rules.","PeriodicalId":12269,"journal":{"name":"Experimental Results","volume":"327 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78507526","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
Weather variability and transmissibility of COVID-19: a time series analysis based on effective reproductive number. COVID-19的天气变异性和传播性:基于有效繁殖数的时间序列分析
Experimental Results Pub Date : 2021-03-03 eCollection Date: 2021-01-01 DOI: 10.1017/exp.2021.4
Michael Nevels, Xiaohan Si, Hilary Bambrick, Yuzhou Zhang, Jian Cheng, Hannah McClymont, Michael B Bonsall, Wenbiao Hu
{"title":"Weather variability and transmissibility of COVID-19: a time series analysis based on effective reproductive number.","authors":"Michael Nevels,&nbsp;Xiaohan Si,&nbsp;Hilary Bambrick,&nbsp;Yuzhou Zhang,&nbsp;Jian Cheng,&nbsp;Hannah McClymont,&nbsp;Michael B Bonsall,&nbsp;Wenbiao Hu","doi":"10.1017/exp.2021.4","DOIUrl":"https://doi.org/10.1017/exp.2021.4","url":null,"abstract":"<p><p>COVID-19 is causing a significant burden on medical and healthcare resources globally due to high numbers of hospitalisations and deaths recorded as the pandemic continues. This research aims to assess the effects of climate factors (i.e., daily average temperature and average relative humidity) on effective reproductive number of COVID-19 outbreak in Wuhan, China during the early stage of the outbreak. Our research showed that effective reproductive number of COVID-19 will increase by 7.6% (95% Confidence Interval: 5.4% ~ 9.8%) per 1°C drop in mean temperature at prior moving average of 0-8 days lag in Wuhan, China. Our results indicate temperature was negatively associated with COVID-19 transmissibility during early stages of the outbreak in Wuhan, suggesting temperature is likely to effect COVID-19 transmission. These results suggest increased precautions should be taken in the colder seasons to reduce COVID-19 transmission in the future, based on past success in controlling the pandemic in Wuhan, China.</p>","PeriodicalId":12269,"journal":{"name":"Experimental Results","volume":"2 ","pages":"e15"},"PeriodicalIF":0.0,"publicationDate":"2021-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1017/exp.2021.4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39043212","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Oyster growth across a salinity gradient in a shallow, subtropical Gulf of Mexico estuary—ERRATUM 牡蛎生长跨越盐度梯度在浅海，亚热带墨西哥湾河口-勘误
Experimental Results Pub Date : 2021-03-02 DOI: 10.1017/exp.2021.3
B. Lebreton, J. Pollack, Brittany N. Blomberg, T. Palmer, P. Montagna
{"title":"Oyster growth across a salinity gradient in a shallow, subtropical Gulf of Mexico estuary—ERRATUM","authors":"B. Lebreton, J. Pollack, Brittany N. Blomberg, T. Palmer, P. Montagna","doi":"10.1017/exp.2021.3","DOIUrl":"https://doi.org/10.1017/exp.2021.3","url":null,"abstract":"","PeriodicalId":12269,"journal":{"name":"Experimental Results","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88553266","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
Preparation burning may not improve short-term seed survival in an Amazonian savanna 在亚马逊热带稀树草原上，准备燃烧可能不会提高种子的短期存活率
Experimental Results Pub Date : 2021-03-01 DOI: 10.1017/exp.2021.2
V. J. U. Rodriguez Chuma, D. Norris, T. P. da Silva, J. A. da Silva, K. Cavalcante, Igor A. P. Sidônio, A. F. de Souza, D. S. S. Valentim, S. Mochiutti, F. Michalski
{"title":"Preparation burning may not improve short-term seed survival in an Amazonian savanna","authors":"V. J. U. Rodriguez Chuma, D. Norris, T. P. da Silva, J. A. da Silva, K. Cavalcante, Igor A. P. Sidônio, A. F. de Souza, D. S. S. Valentim, S. Mochiutti, F. Michalski","doi":"10.1017/exp.2021.2","DOIUrl":"https://doi.org/10.1017/exp.2021.2","url":null,"abstract":"Abstract The role of fire in the management of degraded areas remains strongly debated. Here we experimentally compare removal and infestation of popcorn kernels (Zea mays L. – Poaceae) and açaí fruits (Euterpe oleracea Mart. – Arecaceae) in one burned and two unburned savanna habitats in the eastern Brazilian Amazon. In each habitat, a total of ten experimental units (five per seed type) were installed, each with three treatments: (1) open access, (2) vertebrate access, and (3) invertebrate access. Generalized linear models showed significant differences in both seed removal (P < 0.0001) and infestation (P < 0.0001) among seed type, habitats and access treatments. Burned savanna had the highest overall seed infestation rate (24.3%) and invertebrate access increased açaí seed infestation levels to 100% in the burned savanna. Increased levels of invertebrate seed infestation in burned savanna suggest that preparation burning may be of limited use for the management and restoration of such habitats in tropical regions.","PeriodicalId":12269,"journal":{"name":"Experimental Results","volume":"43 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80719222","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
Effect of using green fluorescent protein double-stranded RNA as non-target negative control in Nasonia vitripennis RNA interference assays 绿色荧光蛋白双链RNA作为非靶阴性对照在玻璃翅雀RNA干扰检测中的作用
Experimental Results Pub Date : 2021-02-10 DOI: 10.1017/exp.2020.67
Julien Rougeot, Yidong Wang, E. Verhulst
{"title":"Effect of using green fluorescent protein double-stranded RNA as non-target negative control in Nasonia vitripennis RNA interference assays","authors":"Julien Rougeot, Yidong Wang, E. Verhulst","doi":"10.1017/exp.2020.67","DOIUrl":"https://doi.org/10.1017/exp.2020.67","url":null,"abstract":"Abstract RNA interference (RNAi) is a technique used in many insects to study gene function. However, prior research suggests possible off-target effects when using Green Fluorescent Protein (GFP) sequence as a non-target control. We used a transcriptomic approach to study the effect of GFP RNAi (GFP-i) in Nasonia vitripennis, a widely used parasitoid wasp model system. Our study identified 3.4% of total genes being differentially expressed in response to GFP-i. A subset of these genes appears involved in microtubule and sperm functions. In silico analysis identified 17 potential off-targets, of which only one was differentially expressed after GFP-i. We suggest the primary cause for differential expression after GFP-i is the non-specific activation of the RNAi machinery at the injection site, and a potentially disturbed spermatogenesis. Still, we advise that any RNAi study involving the genes deregulated in this study, exercises caution in drawing conclusions and uses a different non-target control.","PeriodicalId":12269,"journal":{"name":"Experimental Results","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84683423","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
Physical seed dormancy in Abrus precatorious (Ratti): a scientific validation of indigenous technique 竹属植物种子物理休眠:本土技术的科学验证
Experimental Results Pub Date : 2021-02-04 DOI: 10.1017/exp.2020.64
R. Sharma
{"title":"Physical seed dormancy in Abrus precatorious (Ratti): a scientific validation of indigenous technique","authors":"R. Sharma","doi":"10.1017/exp.2020.64","DOIUrl":"https://doi.org/10.1017/exp.2020.64","url":null,"abstract":"Abstract Seeds of Abrus precatorius L. (Fabaceae) were used as weight measure by Indigenous people. Where, the seeds were referred as Ratti; a traditional Indian unit of mass measurement. Seed weight fluctuates depending upon age, moisture, storage-period/conditions. Therefore, use of seeds as a weighing unit become dubious and need to be validated. For this purpose, seeds of A. precatorious were subjected to different moisture conditions and periodically monitored. Surprisingly, there was no change in seed weight was observed, indicating the impermeability of seed coat. The later was confirmed by scarification of seed coat which resulted in 53% increase in seed weight against 0% in control. Further, presence of a potent toxin (abrin) in the seed coat protects it from pests and microbes, and contributes to the maintenance of impermeability for longer period of time. The data validates the use of A. precatorious seeds as a weighing unit (ratti) by the indigenous people and discussed.","PeriodicalId":12269,"journal":{"name":"Experimental Results","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81814835","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
Oyster growth across a salinity gradient in a shallow, subtropical Gulf of Mexico estuary 牡蛎生长跨越盐度梯度在浅海，亚热带墨西哥湾河口
Experimental Results Pub Date : 2021-02-04 DOI: 10.1017/exp.2020.72
B. Lebreton, J. Beseres Pollack, Brittany N. Blomberg, T. Palmer, P. Montagna
{"title":"Oyster growth across a salinity gradient in a shallow, subtropical Gulf of Mexico estuary","authors":"B. Lebreton, J. Beseres Pollack, Brittany N. Blomberg, T. Palmer, P. Montagna","doi":"10.1017/exp.2020.72","DOIUrl":"https://doi.org/10.1017/exp.2020.72","url":null,"abstract":"Abstract An increase in oyster aquaculture as a sustainable method of shellfish production is one response to overharvest and degradation of natural oyster reefs over the past century. Successful aquaculture production requires determining the environmental conditions optimal for oyster growth. In this study, the salinity, temperature, chlorophyll a concentration and the growth of Crassostrea virginica were monitored at four locations within the Mission-Aransas Estuary, Texas (USA), a shallow subtropical estuary influenced by relatively low freshwater inflow. Mean growth of the oyster shell (0.205 mm d–1 and 0.203 g d–1) and soft tissues (3.447 mg d–1) was highest when salinity was low (mean = 15.5) and chlorophyll a concentration was high (8.4 μg l–1). Oyster growth also varied temporally with periods of spawning. In low-inflow estuaries such as the Mission-Aransas Estuary, oyster farms should be sited close to river mouths so that oysters can benefit from freshwater inflows and lower salinities.","PeriodicalId":12269,"journal":{"name":"Experimental Results","volume":"19 5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82603345","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
The effect of Y on the microstructure and mechanical performance of an Mg-Al-Y casting alloy Y对Mg-Al-Y铸造合金组织和力学性能的影响
Experimental Results Pub Date : 2021-02-03 DOI: 10.1017/exp.2020.63
K. Korgiopoulos, M. Pekguleryuz
{"title":"The effect of Y on the microstructure and mechanical performance of an Mg-Al-Y casting alloy","authors":"K. Korgiopoulos, M. Pekguleryuz","doi":"10.1017/exp.2020.63","DOIUrl":"https://doi.org/10.1017/exp.2020.63","url":null,"abstract":"Abstract Environmental gains of electric cars can be optimized with the use of lightweight and recyclable magnesium in the vehicle’s structural components. Ductility improvement of low-density Mg-Al alloys will extend their use in automotive body applications. The authors achieved 63% ductility improvement in Mg-6wt%Al with trace Y (1.5 ppm) due to the β-phase refinement and predicted that higher levels would not perform as well. As predicted, 0.3wt% of Y addition investigated in this study led to lower mechanical performance and β-phase refinement than those obtained with trace additions. The tensile ductility and yield strength increased by ~13% and 16%, respectively, and the compression strain to fracture by ~22%. Scanning electron and optical microscopy, X-Rays diffraction, mechanical testing and thermodynamic calculations were used to investigate the effect of 0.3wt% Y on the microstructure of Mg-6wt%Al. The matrix dissolution revealed the close association of the Al2Y and the β-Mg17Al12 phases.","PeriodicalId":12269,"journal":{"name":"Experimental Results","volume":"61 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87955676","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
Identifying the function of methylated genes in Alzheimer’s disease to determine epigenetic signatures: a comprehensive bioinformatics analysis 鉴定甲基化基因在阿尔茨海默病中的功能，以确定表观遗传特征:一项全面的生物信息学分析
Experimental Results Pub Date : 2021-02-02 DOI: 10.1017/exp.2020.65
Md. Rezanur Rahman, T. Islam, E. Gov, Julian M. W. Quinn, M. Moni
{"title":"Identifying the function of methylated genes in Alzheimer’s disease to determine epigenetic signatures: a comprehensive bioinformatics analysis","authors":"Md. Rezanur Rahman, T. Islam, E. Gov, Julian M. W. Quinn, M. Moni","doi":"10.1017/exp.2020.65","DOIUrl":"https://doi.org/10.1017/exp.2020.65","url":null,"abstract":"Abstract Gene methylation is one means of controlling tissue gene expression, but it is unknown what pathways influencing Alzheimer’s disease (AD) are controlled this way. We compared normal and AD brain tissue data for gene expression (mRNAs) and gene methylation profiling. We identified methylated differentially expressed genes (MDEGs). Protein-protein interaction (PPI) of the MDEGs showed 18 hypermethylated low-expressed genes (Hyper-LGs) involved in cell signaling and metabolism; also 10 hypomethylated highly expressed (Hypo-HGs) were involved in regulation of transcription and development. Molecular pathways enriched in Hyper-LGs included neuroactive ligand-receptor interaction pathways. Hypo-HGs were notably enriched in pathways including hippo signaling. PPI analysis also identified both Hyper-LGs and Hypo-HGs, as hub proteins. Our analysis of AD datasets identified Hyper-LGs, Hypo-HGs, and transcription factors linked to these genes. These pathways, which may participate in Alzheimer’s disease development, may be affected by treatments that influence gene methylation patterns.","PeriodicalId":12269,"journal":{"name":"Experimental Results","volume":"55 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85638025","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
Investigating reconstructed inflows and pathogen infection patterns between low-relief and high-relief subtropical oyster reefs—CORRIGENDUM 调查低起伏和高起伏亚热带牡蛎礁间重建的流入和病原体感染模式-勘误
Experimental Results Pub Date : 2021-01-25 DOI: 10.1017/exp.2021.1
{"title":"Investigating reconstructed inflows and pathogen infection patterns between low-relief and high-relief subtropical oyster reefs—CORRIGENDUM","authors":"","doi":"10.1017/exp.2021.1","DOIUrl":"https://doi.org/10.1017/exp.2021.1","url":null,"abstract":"","PeriodicalId":12269,"journal":{"name":"Experimental Results","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73744987","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信