We support boolean queries, use +,-,<,>,~,* to alter the weighting of terms
A repository of geologic material from sea floor and lakebed cores, grabs, and dredges archived by participating institutions.
National Data Center that provides scientific stewardship, products, and services for geophysical data from sea floor and solid earth environments, including Earth observations from space. Please note that routine underway geophyiscal shipboard data collected with standard equipment aboard the UNOLS fleet (e.g. bathymetry, subbottom, magnetics, gravity) are routinely transmitted to NGDC via Rolling Deck to Repository (R2R).
THIS RESOURCE IS NO LONGER IN SERVICE. Documented on August 29,2019. Sedimentary geologic and biostratigraphic data.
National Data Center that accepts and makes available weather, climate, paleoclimate, meteorological data.
THIS RESOURCE IS NO LONGER IN SERVCE, documented September 6, 2016.
THIS RESOURCE IS NO LONGER IN SERVICE. Documented on September 23,2022. Software application (entry from Genetic Analysis Software).
Software application (entry from Genetic Analysis Software)
Software application (entry from Genetic Analysis Software)
THIS RESOURCE IS NO LONGER IN SERVICE. Documented on May 6th,2023. Software package for inferring natural selection from unusual population differentiation between closely related populations. (entry from Genetic Analysis Software)
THIS RESOURCE IS NO LONGER IN SERVICE. Documented on May 16,2023. Software program that calculates descriptive statistics, genetic distances, and F-statistics. It also performs tests for Hardy-Weinberg equilibrium, exact tests for genetic differentiation, Mantel tests, and UPGMA cluster analyses. (entry from Genetic Analysis Software)
Optimized relative Lempel-Ziv compression of genomes.
Software application (entry from Genetic Analysis Software)
Software application that allows large-scale analysis of haplotype structure in genomes for the primary purpose of detecting evidence of natural selection. Primarily, it uses the Long Range Haplotype test to look for alleles of high frequency with long-range linkage disequilibrium, which suggest the haplotype rapidly rose to high frequency before recombination could break down associations with nearby markers. SWEEP takes phased genotype data as input, detects all haplotype blocks in that data, and then determines the frequency and long-range LD for each allele in each block. (entry from Genetic Analysis Software)
THIS RESOURCE IS NO LONGER IN SERVICE. Documented on May,6th, 2021. Software application as extension to SLINK/FastSLINK to allow more marker loci to be simulated in pedigrees conditional on trait values and in linkage equilibrium or disequilibrium with trait locus. entry from Genetic Analysis Software.
Software application that assess the joint disease association of multiple unlinked SNPs via sums of SNP specific test statistics. Genome-wide significance levels are obtained by per mutation analysis. (entry from Genetic Analysis Software)
A polymorphism detection tool that detects homozygous SNPs and indels by aligning shotgun reads to the finished genome sequence. Highly repetitive elements are filtered out by ignoring those kmer words with high occurrence numbers. For those less repetitive or non-repetitive reads, we place them uniquely on the reference genome sequence and find the best alignment according to the pair-wise alignment score if there are multiple seeded regions. From the best alignment, SNP candidates are screened, taking into account the quality value of the bases with variation as well as the quality values in the neighbouring bases, using neighbourhood quality standard (NQS). For insertions/deletions, we check if the same indel is mapped by more than one read, ensuring the detected indel with high confidence. (entry from Genetic Analysis Software)
Software application for linkage analysis using affected sib pairs (entry from Genetic Analysis Software)
Software tool to select, evaluate and visualize LD tag SNPs for single or multiple populations. The input files can be a set of dumped genotype files from International HapMap Project (http://www.hapmap.org/) (Hapmap format) or Seattle SNPs (http://pga.gs.washington.edu/) (Prettybase format). The ouput is a set of LD tag SNPs for single or multiple populations. (entry from Genetic Analysis Software)
The mission of the CCRTD Research Support Core Facilities is to provide the scientists of CCRTD, Clark Atlanta University, and Atlanta University Center with access to modern technology, resources, and instruments essential for cutting-edge research in molecular biology, genomics, proteomics, cell biology, and biological imaging.
Software application that can calculate virtually any linkage test statistic under several sib pair study designs: affected, discordant, unaffected, and pairs defined by threshold values for quantitative traits, such as extreme discordant sib pairs. It uses the EM algorithm to compute maximum likelihood estimates of sharing (subject to any user-specified domain restrictions or null hypotheses) and then plots lod scores versus chromosomal position. It includes a novel grid scanning capability that enables simultaneous visualization of multiple test statistics. Phenotype definitions can be modified without recalculating inheritance vectors, thereby providing considerable analytical flexibility. (entry from Genetic Analysis Software), THIS RESOURCE IS NO LONGER IN SERVICE. Documented on September 16,2025.