筛选
科学数据
统计数据
共检索到418条 ,权限内显示50条;
Continuing Survey of Food Intakes by Individuals (CSFII): One Day's Food Intake Data for Men 19-50 Years of Age, 1985 [United States];;Version 1
- 负责人:
- 关键词:
- DOI:
- doi:10.3886/icpsr21960.v1
- 摘要:
- drawn from all private households, and (2) a smaller sample of men drawn from households with reported incomes at or below 130 percent of the poverty
Nitrogen availability determines the long-term impact of land-use change on soil carbon stocks in Ghana
- 负责人:
- DOI:
- doi:10.6084/m9.figshare.12016158.v1
- 摘要:
- , four replicates of soil samples were taken (0\u201330 cm depth). Replicate samples obtained were bulked, thoroughly mixed, and a representative sample taken int
Nitrogen availability determines the long-term impact of land-use change on soil carbon stocks in Ghana
- 负责人:
- DOI:
- doi:10.6084/m9.figshare.12016158
- 摘要:
- , four replicates of soil samples were taken (0\u201330 cm depth). Replicate samples obtained were bulked, thoroughly mixed, and a representative sample taken int
Data from: Protracted growth impedes the detection of sexual dimorphism in non-avian dinosaurs
- 负责人:
- Hone, David
- DOI:
- doi:10.5061/dryad.d5r18
- 摘要:
- phylogenetically bracket the dinosaurs, we demonstrate that even when there is strong dimorphism in a species, random sampling of populations of individuals
Data from: Head-to-head comparison of three experimental methods of quantifying competitive fitness in C. elegans
- 负责人:
- DOI:
- doi:10.5061/dryad.bq3fn37
- 摘要:
- software, and (3) with a large particle flow cytometer (a "worm sorter"). From 720 replicate samples, neither the frequency of wild-type worms nor the among-sample
Trichinella spp larvae in muscles of 18 species of terrestrial and marine mammals collected from Nunatsiavut, Nunavik, Nunavut
- 负责人:
- Canadian Polar Data Network (CPDN)
- 关键词:
- Arctic Digestion assay Environment surveillance Subarctic Traditional food Trichinella Wildlife Zoonosis International Polar Year-Engaging communities in the monitoring of zoonoses, country food safety and wildlife health
- DOI:
- doi:10.5443/11455
- 摘要:
- geographic feature, nearest community, latitude and longitude), date of collection, date of testing, age, sex, sample type, sample weight, larvae recovered pe
Data from: Towards a common methodology for developing logistic tree mortality models based on ring-width data
- 负责人:
- DOI:
- doi:10.5061/dryad.1bv6n
- 摘要:
- size and aims at (1) assessing the dependency of growth–mortality relationships on the statistical sampling scheme used, (2) determining the type
Element and radionuclide concentrations in representative species of the ICRP's Reference Animals and Plants and associated soils from a forest
- 负责人:
- Barnett, Cath;;UK Centre For Ecology & Hydrology;;Environmental Information Data Centre
- 关键词:
- Cumbria United Kingdom radioecology ICRP RAP natural radioactivity radionuclide chemical analysis Soil grass pine tree
- DOI:
- doi:10.5285/e40b53d4-6699-4557-bd55-10d196ece9ea
- 摘要:
- o accredited by UKAS. The Percentage Loss on Ignition (LOI) and pH was also determined in the soil samples. For full details relating to each sample type
Data from: Estimating fish abundance and biomass from eDNA concentrations: variability among capture methods and environmental conditions
- 负责人:
- Anais Lacoursière-Roussel
- DOI:
- doi:10.5061/dryad.46sm5
- 摘要:
- and 20 Brook Charr specimens at two different temperatures. Water samples were filtered with five different types of filters. The eDNA concentration obta
Data from: Laboratory contamination in airway microbiome studies
- 负责人:
- DOI:
- doi:10.5061/dryad.1v92t8b
- 摘要:
- . Our analyses included quantitative PCR and targeted amplicon sequencing of the bacterial 16S rRNA gene. Results: The mean bacterial load varied by sample type