James Cajka
Datos Biográficos
| ID | 6560080 |
|---|---|
| NOMBRE | James Cajka |
| NOMBRES | James |
| APELLIDO | Cajka |
| FIRMA | CAJKA J |
| AFILIACIONES | RTI International |
| ORCID | 0000-0001-9800-6627 |
| VERIFICADO | Sí |
| TOTAL DE OBRAS | 5 |
| TOTAL DE CITAS | 3 |
| TOTAL COMO AUTOR | 5 |
| TOTAL COMO EDITOR | 0 |
| PRIMER AÑO DE PUBLICACIÓN | 2006 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 2024 |
| ÍNDICE H | 1 |
Geographic variation in projected US forest aboveground carbon responses to climate change and atmospheric deposition
Forest composition and ecosystem services are sensitive to anthropogenic pressures like climate change and atmospheric deposition of nitrogen (N) and sulfur (S). Here we extend recent forest projections for the current cohort of trees in the contiguous US, characterizing potential changes in aboveground tree carbon at the county level in response to varying mean annual temperature, precipitation, and N and S deposition. We found that relative to …
A Comparison of Geosampling and Random Walk Methods for Household Sample Selection in Uttar Pradesh, India
Our research evaluates an innovative sampling technique for household surveys called “geosampling” which leverages recent advances in geographic information systems, computer vision algorithms, and satellite imagery. We compare geosampling to the random walk method. We conducted two surveys in Uttar Pradesh, India: one using geosampling (1,026 completes) and another using random walk (939 completes). We compare the two sampling techniques along t…
Geo-sampling in developing nations
RTI International created a geospatial grid-based sampling methodology that: achieved a probability-based household sample and unbiased estimates; was comparable across countries; used simple frame data available from the in-country census; and was efficient with minimal training to local field staff. The methodology used 1 km2 LandScan world population data, which was further subdivided to smaller grid cells ranging from 50 to 150 m2. To guide f…
The Role of Subway Travel in an Influenza Epidemic
Strategies for mitigating an influenza pandemic
The Role of Subway Travel in an Influenza Epidemic
A Comparison of Geosampling and Random Walk Methods for Household Sample Selection in Uttar Pradesh, India
Our research evaluates an innovative sampling technique for household surveys called “geosampling” which leverages recent advances in geographic information systems, computer vision algorithms, and satellite imagery. We compare geosampling to the random walk method. We conducted two surveys in Uttar Pradesh, India: one using geosampling (1,026 completes) and another using random walk (939 completes). We compare the two sampling techniques along t…
Strategies for mitigating an influenza pandemic
The Role of Subway Travel in an Influenza Epidemic
Geo-sampling in developing nations
RTI International created a geospatial grid-based sampling methodology that: achieved a probability-based household sample and unbiased estimates; was comparable across countries; used simple frame data available from the in-country census; and was efficient with minimal training to local field staff. The methodology used 1 km2 LandScan world population data, which was further subdivided to smaller grid cells ranging from 50 to 150 m2. To guide f…
A Comparison of Geosampling and Random Walk Methods for Household Sample Selection in Uttar Pradesh, India
Our research evaluates an innovative sampling technique for household surveys called “geosampling” which leverages recent advances in geographic information systems, computer vision algorithms, and satellite imagery. We compare geosampling to the random walk method. We conducted two surveys in Uttar Pradesh, India: one using geosampling (1,026 completes) and another using random walk (939 completes). We compare the two sampling techniques along t…
Geographic variation in projected US forest aboveground carbon responses to climate change and atmospheric deposition
Forest composition and ecosystem services are sensitive to anthropogenic pressures like climate change and atmospheric deposition of nitrogen (N) and sulfur (S). Here we extend recent forest projections for the current cohort of trees in the contiguous US, characterizing potential changes in aboveground tree carbon at the county level in response to varying mean annual temperature, precipitation, and N and S deposition. We found that relative to …
Geography (4 obras) · Computer Science (3 obras) · Mathematics (3 obras) · COVID-19 epidemiological studies (2 obras) · Data-Driven Disease Surveillance (2 obras) · Demography (2 obras) · Disease (2 obras) · Environmental health (2 obras) · Human Mobility and Location-Based Analysis (2 obras) · Influenza Virus Research Studies (2 obras)