筛选
科学数据
统计数据
共检索到104条 ,权限内显示50条;
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
Data from: From integrative taxonomy to species description: one step beyond
- 负责人:
- DOI:
- doi:10.5061/dryad.59jp0
- 摘要:
- to formal taxonomic descriptions. We reviewed the “integrative taxonomy” literature of the past five years to estimate the ratio of studies delimiting species
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
3R information retrieval self-reports by aspiring directors of animal experimentation
- 负责人:
- 关键词:
- Information literacy 3R information literacy Animal experimentation Refine, Reduce, Replace Alternatives Search methodology reporting
- DOI:
- doi:10.5281/zenodo.18379
- 摘要:
- st about basics of information retrieval, 3Rs, and open access. They should obtain 60% of right answers and forwarded the automatic generated certificate to cours
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
Data from: Phylogenetic inference using discrete characters: performance of ordered and unordered parsimony and of three-item statements
- 负责人:
- DOI:
- doi:10.5061/dryad.f2p64
- 摘要:
- s can be treated either as unordered transformation series or as rooted [three-item analysis (3ia)] or unrooted state trees (ordered characters). We aimed to measure
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
Data from: When homoplasy is not homoplasy: dissecting trait evolution by contrasting composite and reductive coding
- 负责人:
- 关键词:
- Drupes;Simple characters;Complex characters;character evolution;Rubiaceae;Homoplasy;Fruit evolution
- DOI:
- doi:10.5061/dryad.472s0
- 摘要:
- o simpler hierarchical characters (reductive coding), although the implied hierarchical relational information may change depending on the type of coding
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
Agricultural and Demographic Records of 21,118 Rural Households Selected from the 1860 Manuscript Censuses;;Version 1
- 负责人:
- 关键词:
- DOI:
- doi:10.3886/icpsr09117.v1
- 摘要:
- Demographic, occupational and economic information for over 21,000 rural households in the northern United States in 1860 is provided in this dataset
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
Agricultural and Demographic Records of 21,118 Rural Households Selected from the 1860 Manuscript Censuses;;Archival Version
- 负责人:
- 关键词:
- DOI:
- doi:10.3886/icpsr09117
- 摘要:
- Demographic, occupational and economic information for over 21,000 rural households in the northern United States in 1860 is provided in this dataset
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
Southern Agricultural Households in the United States, 1880;;Archival Version
- 负责人:
- 关键词:
- DOI:
- doi:10.3886/icpsr09430
- 摘要:
- , fertilizer, and wages. Demographic information drawn from the 1880 Census of Population includes the race, literacy, age, and birthplace of the farm opera
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
Southern Agricultural Households in the United States, 1880;;Version 1
- 负责人:
- 关键词:
- DOI:
- doi:10.3886/icpsr09430.v1
- 摘要:
- , fertilizer, and wages. Demographic information drawn from the 1880 Census of Population includes the race, literacy, age, and birthplace of the farm opera
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
Data from: Interacting stressors matter: diet quality and virus infection in honey bee health
- 负责人:
- DOI:
- doi:10.5061/dryad.p0t7770
- 摘要:
- e, we used a mixture of laboratory cage and small semi-field nucleus hive experiments to determine how these factors interact. We found that high quality
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
Fast iterative image reconstruction for 3D PET and its extension to time-of-flight PET
- 负责人:
- 关键词:
- Electrical Engineering Fourier rebinning fully 3D PET inverse rebinning iterative reconstruction time-of-flight PET
- DOI:
- doi:10.25549/usctheses-m1623
- 摘要:
- of fast scintillators, involve an even higher computational cost for image reconstruction because of extra TOF information. A successful pragmatic approac