• earthquakes
  • Earthquake prediction is a branch of the science of seismology concerned with the specification of the time, location, and magnitude of future earthquakes within stated limits, and particularly "the determination of parameters for the next strong earthquake to occur in a region. (wikipedia.org)
  • While such statistics are not satisfactory for purposes of prediction (giving ten to twenty false alarms for each successful prediction) they will skew the results of any analysis that assumes that earthquakes occur randomly in time, for example, as realized from a Poisson process. (wikipedia.org)
  • 99..729K, doi:10.1029/93JB01556 Santoyo, M. A (2005), "Space-Time Clustering of Large Thrust Earthquakes along the Mexican Subduction Zone: An Evidence of Source Stress Interaction" (PDF), Bulletin of the Seismological Society of America, Seismological Society of America, 95 (5): 1856, Bibcode:2005BuSSA. (wikipedia.org)
  • pairs
  • Analysis of the type of links indicated that clusters consisted of pairs whose contact was by place of residence or work. (bmj.com)
  • These are methods that take a collection of points as input, and create a hierarchy of clusters of points by repeatedly merging pairs of smaller clusters to form larger clusters. (wikipedia.org)
  • However, for some other clustering methods it uses a larger amount of memory in an auxiliary data structure with which it keeps track of the distances between pairs of clusters. (wikipedia.org)
  • Next, the dissimilarity function is extended from pairs of points to pairs of clusters. (wikipedia.org)
  • Known methods for repeatedly finding the closest pair of clusters in a dynamic set of clusters either require superlinear space to maintain a data structure that can find closest pairs quickly, or they take greater than linear time to find each closest pair. (wikipedia.org)
  • A gene cluster is a group of two or more genes found within an organism's DNA that encode for similar polypeptides, or proteins, which collectively share a generalized function and are often located within a few thousand base pairs of each other. (wikipedia.org)
  • evaluate
  • With a scan statistic, a scanning window of variable location and size moves across the map to evaluate thousands of overlapping windows as potential clusters, adjusting for the multiple testing. (springer.com)
  • The Gini coefficient provides a quick and intuitive way to evaluate the degree of the heterogeneity of the collection of clusters, which is useful to explain how well the cluster collection reveal the underlying true cluster patterns. (springer.com)
  • A likelihood-based approach allows the scan statistic to identify clusters and evaluate if they are statistically significant, adjusting for the multiple testing inherent in the many potential cluster locations and sizes. (springer.com)
  • To evaluate cholera case clustering and provide a basis for modeling and intervention design, we conducted a spatiotemporal analysis of household-level data in the Ouest Department in Haiti during 2010-2011. (cdc.gov)
  • detect
  • The negative result in the kNN test might be explained by lack of power, which is due to the small number of outbreaks in relation to the size of the study area and length of the study period, and further by the low to moderate power of methods to detect space-time clustering when the background population is unknown. (beds.ac.uk)
  • galaxy
  • The Dark Energy Survey investigates the dynamics and large scale structure of the Universe using four probes: Type Ia supernovae, baryon acoustic oscillations (BAO), the number of galaxy clusters, and weak gravitational lensing. (wikipedia.org)
  • The other three techniques (BAO, galaxy clusters, and weak lensing) used by the Dark Energy Survey allow scientists to understand simultaneously the expansion of the universe and the evolution of the dark matter density field perturbations. (wikipedia.org)
  • These perturbations were intrinsically tied to the formation of galaxies and galaxy clusters. (wikipedia.org)
  • This is a very important property for the observation of very distant sources, like Type IA supernovae or galaxy cluster, because the expansion of the universe shifts the photons emitted from a given source towards redder wavelengths. (wikipedia.org)
  • Some of the primary working groups are: the weak lensing working group, the galaxy clusters working group, the large-scale structure working group, the supernova working group, the galaxy evolution working group, and the strong lensing working group. (wikipedia.org)
  • case
  • g., a case-control study in which dioxins are measured in biologic tissues) before clusters of soft-tissue sarcoma and non-Hodgkin's lymphoma are ascribed to dioxin released by the municipal solid waste incinerator. (labome.org)
  • The case-control test for space-time clustering developed by Pike and Smith was applied to 96 cases of sarcoidosis diagnosed in the Isle of Man from 1962 to 1983. (bmj.com)
  • In the case of the Hox gene, a shared ancestral ProtoHox cluster was duplicated, resulting in genetic clusters in the Hox gene as well as the ParaHox gene, an evolutionary sister complex of the Hox gene. (wikipedia.org)
  • In the case where a gene cluster is duplicated, some genes may be lost. (wikipedia.org)
  • species
  • In this application, different living things are grouped into clusters at different scales or levels of similarity (species, genus, family, etc). (wikipedia.org)
  • Species who have gene clusters have a selective evolutionary advantage because natural selection must keep the genes together. (wikipedia.org)
  • quantum
  • The Cluster of Excellence QUEST - Centre for Quantum Engineering and Space-Time Research has been funded since November 2007 in the framework of the German Universities Excellence Initiative of the federal and state governments of Germany. (wikipedia.org)
  • The key research areas of the cluster are the quantum engineering and the space-time research. (wikipedia.org)
  • The Cluster of Excellence is with scientists from the fields of quantum optics, laser physics, solid state physics, gravitational physics, theoretical physics and geodesy interdisciplinary orientated. (wikipedia.org)
  • In the cluster quantum effects for the production of new measurement technologies are being explored. (wikipedia.org)
  • galaxies
  • Gravitational collapse enhances these initial fluctuation as baryons fall into the gravitational potential field of more dense regions of space to form galaxies. (wikipedia.org)
  • Galaxies are organized into groups and clusters, often within larger superclusters, that are strung along great filaments between nearly empty voids, forming a web that spans the observable universe. (wikipedia.org)
  • cancer
  • CONCLUSION: There is reason to believe that this timing and rhythm is unrelated to any specific cancer chronomics. (uliege.be)
  • Using simulation studies and real cancer mortality data, it is compared with the traditional approach for reporting non-overlapping clusters. (springer.com)
  • Kulldorff M, Athas W, Feuer E, Miller B, Key C. Evaluating cluster alarms: A space-time scan statistic and brain cancer in Los Alamos. (satscan.org)
  • method
  • Almost always, the method will find many very similar overlapping clusters, and it is not useful to report all of them. (springer.com)
  • Equipped with in-situ techniques in combination with Transmission electron microscopy (TEM), Scanning electron microscopy (SEM), and micro-diffraction methods, this nanomechanical testing method can give us rich detail in nanoscale plasticity instabilities in real time. (wikipedia.org)
  • For instance, in the single-linkage clustering method, the distance between two clusters is defined to be the minimum distance between any two points from each cluster. (wikipedia.org)
  • results
  • We show that by combining the clustering results from low and high resolution spaces, we can recognize precursory events more precisely and decode vital information that cannot be discerned at a single level of resolution. (mexmat.ru)
  • The results suggest an aetiology for AEP where the exposure is not consistent in time, but varies during and between years, assuming that the incubation period does not vary greatly. (beds.ac.uk)
  • Stack analyzed the results from 42 studies and found that those measuring the effect of a celebrity suicide story were 14.3 times more likely to find a copycat effect than studies that did not. (wikipedia.org)
  • data
  • The observed data represent seismic activities situated around the Japanese islands in the 1997-2003 time interval. (mexmat.ru)
  • Several
  • Several potential artefacts were considered and excluded, but the possibility remained that clustered detections might be triggered by haematological examinations undertaken for some communicable disease. (bmj.com)
  • Hox gene clusters, ranging in various sizes, are found among several phyla. (wikipedia.org)
  • different
  • these all work by repeatedly merging the closest two clusters but use different definitions of the distance between clusters. (wikipedia.org)
  • Genes found in a gene cluster may be observed near one another on the same chromosome or on different, but homologous chromosomes. (wikipedia.org)
  • however, over a long, evolutionary time period, the genetic information in the duplicated copy may undergo additional and drastic mutations in which the proteins of the duplicated gene served a different role than those of the original essential gene. (wikipedia.org)
  • smaller
  • For example, it is able to determine when it makes more sense to report a collection of smaller non-overlapping clusters versus a single large cluster containing all of them. (springer.com)
  • Research
  • V. Max-Planck Institute for Gravitational Physics (Albert Einstein Institute, Hannover) Gravitational wave detector GEO600 Physikalisch-Technische Bundesanstalt, Braunschweig/Germany Center for Applied Space Technology and Microgravity (ZARM), Bremen/Germany The Wissenschaftsrat had 2010 recommended to build a new research building at Leibniz Universität Hanover, the Hanover Institute of Technology, HiTec shortly. (wikipedia.org)
  • German Research Foundation: List of current Clusters of Excellence. (wikipedia.org)
  • Correspondingly, authorities which use Precobs, do not have to deploy staff for the time-consuming research for near repeat crimes or burglary series anymore. (wikipedia.org)
  • various
  • At this level, the resulting fundamental components are the stars, which are typically assembled in clusters from the various condensing nebulae. (wikipedia.org)
  • sequence
  • Numerical simulation approximates the evolution of the variables with a sequence of points in discretized time. (springer.com)
  • models
  • Historically, four models have been proposed for the formation and persistence of gene clusters. (wikipedia.org)
  • however, models exist suggesting that the duplicated Protohox cluster originally contained four, three, or two genes. (wikipedia.org)
  • example
  • An example of a gene cluster is the Hox gene, which is made up of eight genes and is part of the Homeobox gene family. (wikipedia.org)
  • single
  • however, rather than the Hox cluster and the ParaHox cluster resulting from a cluster containing three genes, the Hox cluster and ParaHox cluster were as a result of single gene tandem duplication, identical genes found adjacent on the same chromosome. (wikipedia.org)
  • similar
  • Over the long, evolutionary time period, the two similar genes would diverge so the proteins of each gene were unique in their functions. (wikipedia.org)
  • high
  • It is a multipurpose instrument that will have cryogenic receivers with very high sensitivity in order to observe very faint sources, and filters to observe the Sun. This large receivers input range is quite a big challenge (although is not the first time that it was achieved since ALMA 12 m antennas have the same capacity. (wikipedia.org)