Some of these compounds have isotopic signatures that are characteristic of ... can be definitely detected and a very accurate abundance determined. ...

Microarray-based classifiers and associated signature genes generated from various platforms are abundantly reported in the literature; however, the utility of the classifiers and signature genes in cross-platform prediction applications remains largely uncertain. As part of the MicroArray Quality Control Phase II (MAQC-II) project, we ...

Dr. Triche's program focuses on refining and validating molecular signatures that provide a more accurate diagnosis of the common childhood sarcomas and signatures that more accurately predict clinical behavior of these tumors. The project will build on signatures developed during the ...

where d is the desired spectral signature of the lithology of interest, a is the desired signature abundance, U is a matrix whose columns are the undesired ...

We determined the volatile abundances and H isotope signatures of melt inclusions and nominally anhydrous minerals in the chassignites and ALH 84001 by SIMS.

... It is unlikely that a same incorrect conclusion can be reached in multiple ... of signature in the first step and shows the time evolution of abundance for ...

... is the abundance of silt grains mixed in with the bioturbated ... m1/iionins and oither 7ooplankton: mineral transformation and weditnentologi ... Minerals. ...

In a short review of neutron-capture elemental abundances in Galactic halo stars, emphasis is placed on the use of these elements to estimate the age of the Galactic halo. Two prominent characteristics of neutron-capture elements in halo stars are their large star-to-star scatter in the overall abundance level with respect to lighter elements, and the ...

Accurate infrared ship signature codes are needed by the Navy in order to predict signatures of existing ships, test algorithms used for detection, classification and homing, study signature reduction techniques, and reduce the IR detectability of future ...

Context. Recent accurate abundance analyses of B-type main sequence stars in the solar vicinity has shown that abundances derived from these stellar objects are more homogeneous and metal-rich than previously thought. Aims: We investigate whether the inhomogeneity of abundances previously found in B-type stars in ...

... to accurately and precisely determine the abundance of corals reefs via coral optics and remote sensing....

Abundances for alpha -elements and Fe in about 150 field subdwarfs and early subgiants with accurate parallaxes and kinematic data are used to discuss the run of abundance ratios in metal-poor stars in the solar neighborhood. Based on kinematics, we separated stars into two populations: the first one has a positive velocity of rotation ...

We present a fully differential chemical abundance analysis using very high resolution ({lambda}/{delta}{lambda} {approx}> 85, 000) and very high signal-to-noise (S/N {approx}800 on average) HARPS and UVES spectra of 7 solar twins and 95 solar analogs, of which 24 are planet hosts and 71 are stars without detected planets. The whole sample of solar analogs provides very ...

We present a fully differential chemical abundance analysis using very high resolution (?/?? >~ 85, 000) and very high signal-to-noise (S/N ~800 on average) HARPS and UVES spectra of 7 solar twins and 95 solar analogs, of which 24 are planet hosts and 71 are stars without detected planets. The whole sample of solar analogs provides very accurate ...

Context: To alleviate the discrepancy between the prediction of the primordial lithium abundance in the universe and the abundances observed in Pop II dwarfs and subgiant stars, it has been suggested that the stars observable today have undergone photospheric depletion of lithium. Aims: To identify the cause of this depletion, it is important to ...

A method is described that allows measuring the isotopic composition of small uranium oxide particles (less than 1?m in diameter) for nuclear safeguards purposes. In support to the development of reliable tools for the identification of uranium and plutonium signatures in trace amounts of nuclear materials, improvements in scanning electron microscopy (SEM) and thermal ...

Hypernuclei were discovered in 1952 by M. Danysz and J. Pniewski in photographic emulsions that went with high altitude balloon flights. The weak decay of a ? nucleon accounted for the abundant energy release in a secondary star, which is the signature of what was called a hyperfragment. Many surprises were offered by hypernuclei through a large variety of ...

Early diagnosis as well as individualized therapies are necessary to reduce the mortality of breast cancer, and personalized patient care strategies rely on novel prognostic or predictive factors. In this study, with six breast cancer patients, 2D gel analysis was applied for studying protein expression differences in order to distinguish invasive ductal breast carcinoma, the most frequent breast ...

This paper deals with a deterministic technique for the derivation of seismic pulses by the study of source characteristics. The spectral characteristics of the directly or the nearest detected seismic signal is analyzed and considered as the principle source signature. Using this signature seismic pulses are derived with accurate time ...

This paper deals with a deterministic technique for the derivation of seismic pulses by the study of source characteristics. The spectral characteristics of the directly or the nearest detected seismic signal is analyzed and considered as the principle source signature. Using this signature seismic pulses are derived with accurate time ...

As part of the three-year `Life in the Atacama' (LITA) project, plant and microbial abundance were mapped within three sites in the Atacama Desert, Chile, using an automated robotic rover. On-board fluorescence imaging of six biological signatures (e.g., chlorophyll, DNA, proteins) was used to assess abundance, based on a percent ...

Complex forest structure and abundant tree species in the moist tropical regions often cause difficulties in classifying vegetation classes with remotely sensed data. This paper explores improvement in vegetation classification accuracies through a comparative study of different image combinations based on the integration of Landsat Thematic Mapper (TM) and SPOT High ...

We derive the abundance of 19 elements in a sample of 64 stars with fundamental parameters very similar to solar, which minimizes the impact of systematic errors in our spectroscopic 1D-LTE differential analysis, using high-resolution (R?60 000), high signal-to-noise ratio (S/N?200) spectra. The estimated errors in the elemental abundances relative to ...

This paper introduces the notion of a knowledge signature: a concise, ontologically-driven representation of the semantic characteristics of data. Knowledge signatures provide programmatic access to data semantics while allowing comparisons to be made across different types of data such as text, images or video, enabling efficient, automated information ...

A survey of the approx. 1 MeV/nucleon heavy ion abundances in 66 He-3-rich solar particle events was

... a unique spatial and temporal signature which anticipates future food abundance. Thanks to Jamie Gillooly, April Hayward, and ... ...

... based on the assumption that increased abundance of a specific protein will lead to increased spectral counts of its tryptic peptides identified by LC ...

5 days ago ... Volatile abundances and hydrogen isotope signatures of melt inclusions and nominally anhydrous minerals in the chassignites and ALH84001 ...

An abundance of dikes should exist in the crust of the. Moon [Head and Wilson, 1992], ... recognition of magnetized dikes would imply the existence of ...

Prostate cancer (PCa) is the most frequent male malignancy and the second most common cause of cancer-related death in Western countries. Current clinical and pathological methods are limited in the prediction of postoperative outcome. It is becoming increasingly evident that small non-coding RNA (ncRNA) species are associated with the development and progression of this malignancy. To assess the ...

Aims: We reassess the role of HeH+ with the aid of newly calculated rates that use entirely ab initio methods, which thereby allow us to compute with higher accuracy the relevant abundances within the global chemical network of the early universe. A comparison with the similar role of the ionic molecule LiH+ is also presented. Methods: Quantum calculations were carried out ...

Efficient exploitation of these resources requires accurate characterization of mineral abundances, sizes/shapes, and association of 'ore' and 'gangue' ...

The isotopic method of determining absolute age is the most accurate and .... Another method of relative age dating involves the relative abundance of ...

Sep 21, 2011 ... Chemical Taxonomy Presenter: Boncho P. Bonev () ... accurate abundance measurements has begun to permit a taxonomic ...

Georgia Tech been investigating method for the detection of covert personnel in traditionally difficult environments (e.g., urban, caves). This program focuses on a detailed phenomenological analysis of human physiology and signatures with the subsequent identification and characterization of potential observables. Both aspects are needed to support the development of ...

Grazing incidence X-ray fluorescence is a non-destructive technique that can differentiate the embedded solar wind component from surface contamination and collector background in the Genesis shards. Initial solar Fe abundance in D30554 is 8 x 10{sup 12}/cm{sup 2}. Accurate knowledge of the composition of the Sun provides a baseline, which allows an ...

Accurate and rapid evaluation of radar signature for alternative aircraft/store configurations would

... of applications require accurate detection and characterization of persons, human measurement and signature intelligence (H-MASINT), and SAR ...

Although CFD shows accurate predictions of flow around complex configurations, generating grids that can resolve the sonic boom signature far away from the ...

The observable abundances of the ultraheavy cosmic rays where Z ranges from 24 to 59 are calculated using different source abundance hypotheses. Included are the standard solar system abundances, r-process-only abundances, and these two sets modified by the first ionization potential of the elements to test for ...

Accurate, sensitive assessment of the mutational status of tumors enables genotype/phenotype studies and increases the understanding of tumor etiology, progression, recurrence and response to therapy. Preliminary Peptide Mass Signature Genotyping (PMSG) r...

This paper reports on the performance of forensic document examiners (FDEs) in a signature comparison task that was designed to address the issue of expertise. The opinions of FDEs regarding 150 genuine and simulated questioned signatures were compared with a control group of non-examiners' opinions. On the question of expertise, results showed that FDEs ...

this paper we conduct a careful study to assess the numerical mesh resolution requirements for the accurate computation of sonic boom ground signatures produced by complete aircraft configurations. The details of the ground signature can be highly dependent on the accurate prediction of the pressure distribution ...

This report documents the work done on the bearing assessment program over the past two and a half years. The objective of the program is to develop a nondestructive evaluation system for the SSME HPOTP's which would be used to detect anomalies in installed bearings without engine disassembly. Data bases of various signatures are obtained by slowly turning the pump shafts ...

Meteor signatures contain information about the constituents of space debris and present potential false alarms to early warnings systems. Better models could both extract the maximum scientific information possible and reduce their danger. Accurate predictions can be produced by models of modest complexity, which can be inverted to predict the sizes, ...

BackgroundPrevious work has demonstrated the potential for peripheral blood (PB) gene expression profiling for the detection of disease or environmental exposures.Methods and FindingsWe have sought to determine the impact of several variables on the PB gene expression profile of an environmental exposure, ionizing radiation, and to determine the specificity of the PB signature ...

Signature verification is one of the most widely researched areas in document analysis and signature biometric. Various methodologies have been proposed in this area for accurate signature verification and forgery detection. In this paper we propose a unique two stage model of detecting skilled forgery in the ...

In this study we used a comparative multiproxy survey (fossil DNA, calcareous nannofossils, and lipid biomarkers) to test whether preserved genetic signatures provide an accurate view of haptophyte and dinoflagellate populations during deposition of the eastern Mediterranean sapropel S1 and the organic carbon-depleted oxidized marls flanking the S1 and to ...

High-resolution X-ray spectroscopy of Active Galactic Nuclei has become possible thanks to the launch of XMM-Newton and Chandra with their grating spectrometers, and will be explored further after the expected launch of ASTRO-E2 with its XRS detector. In several AGN the X-ray spectra show the signatures of on outflowing, photo-ionised wind. Also several X-ray binaries show a ...

A novel approach to VNIR hyperspectral target identification is presented based on the Least-Angle Regression (LARS) variable selection and model building algorithm. The problem to be solved is that of accurately identifying a target's primary signature component given a sub-pixel observation. Traditional matched detectors (MF, ACE, etc.) perform well at ...

While plants of a single species emit a diversity of volatile organic compounds (VOCs) to attract or repel interacting organisms, these specific messages may be lost in the midst of the hundreds of VOCs produced by sympatric plants of different species, many of which may have no signal content. Receivers must be able to reduce the babel or noise in these VOCs in order to correctly identify the ...

The observable abundances of the ultraheavy cosmic rays in the charge range 24< or =Z< or =59 have been calculated using different source abundances hypotheses. These include the standard solar-system abundances, r-process--only abundanes, and these two sets modified by the first ionization potential of the elements to test for ...

The authors report on the room-temperature characterization of a narrow absorption signature in an organic molecular solid (?-lactose monohydrate) centered around 530 GHz and having a full width at half maximum as small as 23 GHz. Three different spectrometric techniques were applied, two of them (tunable photomixing and tunable frequency multiplication) having a high enough ...

We have used the Ultraviolet Visual-Echelle Spectrograph (UVES) on Kueyen (UT2) of the Very Large Telescope to take spectra of 15 individual red giant stars in the centers of four nearby dwarf spheroidal galaxies (dSph's): Sculptor, Fornax, Carina, and Leo I. We measure the abundance variations of numerous elements in these low-mass stars with a range of ages (1-15 Gyr old). ...

Major differences between current series of stellar evolution calculations concern their opacities and treatment of convection. Accurate mass, radius, luminosity, and abundance data from eclipsing binaries now allow significant conclusions on these differences: binary stars with small convective cores are very well fitted by standard models using Los ...

A hollow cathode glow discharge has been coupled with tunable lasers for isotopically selective excitation of gaseous uranium atoms produced by cathodic sputtering. A CW argon ion laser-pumped titanium:sapphire ring laser and a semiconductor diode laser were employed. Optogalvanic detection of the discharge atom population allowed identification of [sup 235]U at depleted, natural, and enriched ...

Hypernuclei were discovered in 1952 by M. Danysz and J. Pniewski in photographic emulsions that went with high altitude balloon flights. The weak decay of a {lambda} nucleon accounted for the abundant energy release in a secondary star, which is the signature of what was called a hyperfragment. Many surprises were offered by hypernuclei through a large ...

Ethane and other hydrocarbon gases have strong rovibrational transitions in the 3.3 ?m spectral region owing to C-H, CH2, and CH3 vibrational modes, making this spectral region prime for searching possible biomarker gases in extraterrestrial atmospheres (e.g., Mars, exoplanets) and organic molecules in comets. However, removing ethane spectral signatures from high-resolution ...

Products for specific diagnosis and immunotherapy of IgE-mediated allergies are currently based on natural extracts. Quantification of major allergen content is an important aspect of standardization as important allergens particularly impact vaccine potency. The aim of the study was to develop a mass spectrometry (MS) based assay for absolute quantification of Timothy (Phleum pratense) pollen ...

The mass spectrometric determination of minor abundant isotopes, (sup 234)U and (sup 236)U in naturally occurring uranium materials requires instruments of high abundance sensitivity and the use of highly sensitive detection systems. In this study the the...

(from the rapid neutron capture process, i.e., the r- process) from the earliest generations of stars - the progenitors of the halo stars. The observed stellar abundance distributions - from the lightest neutron. Differences between neutron-capture elemental abundances for three halo stars and the Sun based upon older

Proper signatures in the medical record is an area of concern because they are included in the Office of Inspector General (OIG) Compliance Guidance as a potential risk area effecting physician practices. One of the four areas identified by OIG is timely, accurate and complete documentation, which includes "date and legible identity of the observer." ...

Accurately characterizing protoplanetary disks (proplyds) is integral to understanding the formation and evolution of planetary systems. The chemical reactions and physical processes within a disk determine the abundances and variety of molecular building blocks available for planet formation. Observations at infrared to millimeter wavelengths confirm a ...

Epidemiological studies indicate an increased risk of subsequent primary ovarian cancer from women with breast cancer. We have recently identified a 28-gene expression signature that predicts, with high accuracy, the clinical course in a large population of breast cancer patients. This prognostic gene signature also accurately predicts ...

Accurate spectral signature classification is a crucial step in the nonimaging detection and recognition of spaceborne objects. In classical hyperspectral recognition applications, especially where linear mixing models are employed, signature classification accuracy depends on accurate spectral endmember ...

Accurate spectral signature classification is key to the nonimaging detection and recognition of spaceborne objects. In classical hyperspectral recognition applications, signature classification accuracy depends on accurate spectral endmember determination [1]. However, in selected target recognition (ATR) ...

Recent studies have shown that the elemental abundances in the Sun are anomalous when compared to most (about 85%) nearby solar twin stars. Compared to its twins, the Sun exhibits a deficiency of refractory elements (those with condensation temperatures TC ? 900 K) relative to volatiles (TC ? 900 K). This finding is speculated to be a signature of the ...

The accurate determination of isotope abundances by any method requires that the measuring systems be calibrated using well characterized isotope reference materials. The National Bureau of Standards (NBS) and the Central Bureau for Nuclear Measurements (...

Atomic masses and isotopic abundances are independent and complementary properties for discriminating among ion compositions. The number of possible ion compositions is greatly reduced by accurately measuring exact masses of monoisotopic ions and the relative isotopic abundances...

Understanding the distribution and abundance of pollen of various plants in modern sediments and their relationship to source plant distribution and abundance is critical for accurate interpretation of past vegetational patterns reconstructed from down-co...

Mosquito species abundance and composition estimates provided by trapping devices are commonly used to guide control efforts, but knowledge of trap biases is necessary for accurately interpreting results. We compared the Mosquito Magnet ¿ Pro, the Mosquito Magnet ¿ X and the CDC Miniature Light Trap...

We propose an observation of the compact group HCG 62 with ACIS-S (BI); our purpose is the accurate determination of the abundances of heavy elements as a ...

... populations with their mobility and response to changing weather conditions, only long-term standardized monitoring can provide an accurate picture of the distribution and abundance of the butterflies ......

Recent theoretical and experimental data on the diatomic carbon molecule make feasible an accurate calculation of the partition function at high temperatures. All the excited states which contribute to the partition function were considered. A table of thermodymmic functions in the tem perature range 2000 to 6000 deg K is given. The results so obtained are used in ...

BackgroundStudies have suggested that demographic and lifestyle factors could shape the composition of fecal microbiota in early life. This study evaluated infant stool microbiota signatures in two Asian populations, Singapore (n = 42) and Indonesia (n = 32) with contrasting socioeconomic development, and examined the putative influences of demographic factors on these human ...

Insignia is a web application for the rapid identification of unique DNA signatures. DNA signatures are distinct nucleotide sequences that can be used to detect the presence of certain organisms and to distinguish those organisms from all other species. These signatures can be used as the basis for diagnostic assays to detect and ...

... Therefore, without sound estimates of seasonal relative prey abundances in the Besa-Prophet area, and assuming a relatively uniform isotopic signature for each prey species across the landscape, ... ...

... location where genetically similar individuals are more abundant. Nucifraga Columbiana For more information contact Sara Oyler-McCance Publications ... ...

... deficit conditions in transgenic wheat constitutively expressing the barley HVA1 gene. Plant Sci 155:1�9. CrossRef, PubMed, CSASteadman, ... 1996. Expression of a late embryogenesis abundant protein gene,...

Microbial DNA fragments are classified according to species using compositional features and 'genomic signatures' the oldest of which is the dinucleotide relative abundance profile defined by Karlin et al. More informative features, including higher order...

... density Introduction C3 and C4 plants have distinctive isotopic signatures, and the proportion of 13C in soil organic matter depends on the relative abundance of C3 and C4 plants (Cerling 1992). The ... ...

The discovery of enhanced siderophile abundances at the Cretaceous/Tertiary boundary has provoked many searches for geochemical signatures which could reveal other catastrophic impacts in Earth's history. These searches implicitly assume that most large i...

such as uranium, thorium and potassium-40 have long half lives and remain abundant in the earth's crust. The decay products of these nuclei and their daughters can often have the same low energy signatures of the rare, consisting of organic liquid scintillator. Owing to the low anti-neutrino energies, physics events can

The growing awareness of the importance of the fossil record in the Milky Way for constraining galaxy formation theory is reflected by the increasing number of new ground- and space-based surveys designed to unravel the formation history of the Galaxy. Recently, a new kinematic survey has been produced by means of spectro-photometric data from the Sloan Digital Sky Survey (SDSS-DR7) and ...

robust signature set possible. Combine your training sites to create the weighted training site for each the unsupervised classification method, the software was instructed to create x number of clusters in x iterations that a accurate and complete set of class definitions are created. These classes are typically created

An analysis-based approach .for developing shell-buckling design criteria for laminated-composite cylindrical shells that accurately accounts for the effects of initial geometric imperfections is presented. With this approach, measured initial geometric i...

A comprehensive experimental model of controlled overpressure brain impact in rats is presented. Repeatable blast signatures of controlled duration, peak pressure and transmitted impulse enable to reproduce blast impact in laboratory animals in accurate f...

Fan noise is a significant contributor to the total noise signature of a modern high bypass ratio aircraft engine and with the advent of ultra high bypass ratio engines like the geared turbofan, it is likely to remain so in the future. As such, accurate m...

The author has identified the following significant results. (1) Accurate recognition of previously known ground features from ERTS-1 imagery has been confirmed and a probable detection range for the major signatures can be given. (2) Unidentified element...

... the unique isotopic signature of the ore body from which the lead was mined. ... an accurate record of the effects of human-induced lead pollution on the .... Maring, H., Niemeyer, S. (1993) Anthropogenic Pb in Antarctic sea water. ...

Very accurate and stable time tagging capabilities are fundamental for Quantum Astronomy and Quantum Key Distribution. The main task of Quantum Astronomy is to find particular signatures of different astrophysical emission mechanisms or scattering process...

The optical properties of motor aluminum oxide are required inputs to current plume signature prediction codes, such as SIRRM. Accurate predictions are possible only if variations in the particle emissivity due to changes in particle size, contamination, ...

High fidelity infrared signature modelling of targets requires the accurate representation of not only factors concerned with the target itself but also the immediate environment. Modelling of multiple reflections from extended thermal sources can often b...

claimed to be unaware of memory retrieval. This `implicit recognition' was associated with frontal that produce implicit memory can be operative in standard recognition tests. People can accurately discriminate and implicit memory have shaped memory research ever since their seminal descriptions in individuals

...provides photographic or electronic images of the original records and meets...imaging process preserves accurate images of the original records, including signatures and other written or graphic images, and that the imaging process...

Oxygen is abundant in the Sun, yet the solar oxygen abundance has not been measured with high accuracy. Using long-term solar wind data from the Ulysses spacecraft, von Steiger et al. measured the flux of oxygen ions, the flux of protons, and the ratio of the two. The new measurements suggest that the solar oxygen abundance may be ...

Primary inversions of accurately measured solar oscillation frequencies coupled with the equations of thermal equilibrium and other input physics, enable us to infer the temperature and hydrogen abundance profiles inside the Sun. These profiles also help in setting constraints on the input physics as well as on heavy element abundance ...

Carlo (DSMC) is a stochastic, particle-based method capable of simulating the full details shock or detonation waves. The DSMC method has been implemented with a time- accurate, three by the energy released by the chemical reactions within the wave. The DSMC method has been found in excellent

reconstructions accurate up to a fraction of a millimeter. For example, the Digital Hammurabi project [KSD*04 and verify ge- nuinity signatures on several types of objects. First, to en- code a signature our software watermarking", Picture Coding Symp., 287-290, 2001. [KSD*03] KUMAR S., SNYDER D., DUNCAN D., COHEN J., COOPER J

.g. papers) 7. What are advantages of your invention over the State-of-the-art? 8. Are there any limitationsSouth Dakota State University Confidential Invention Disclosure Rev. v. : KC 1 SDSU to your invention accurately and return the document with original signature(s) to the Technology Transfer

Rapid, accurate, and sensitive detection of biothreat agents requires a broad-spectrum assay capable of discriminating between closely related microbial or viral pathogens. Moreover, in cases where a biological agent release has been identified, forensic analysis demands detailed genetic signature data for accurate strain ...

The Vedder-Jewett sands represent a retrogradational parasequence set forming a seismically defined, 1500-ft thick transgressive systems tract (TST) that was deposited in a ramp setting on the eastern margin of the San Joaquin basin. This interval has produced 656.5 MMBO and 221.9 BCFG, largely from fault-bounded traps. Due to basin subsidence, the underlying highstand nonmarine Walker was ...

Although they are but a small fraction of the mass ejected in core-collapse supernovae, neutrino-driven winds (NDWs) from nascent proto-neutron stars (PNSs) have the potential to contribute significantly to supernova nucleosynthesis. In previous works, the NDW has been implicated as a possible source of r-process and light p-process isotopes. In this paper, we present time-dependent hydrodynamic ...

Although they are but a small fraction of the mass ejected in core-collapse supernovae, neutrino-driven winds (NDWs) from nascent proto-neutron stars (PNSs) have the potential to contribute significantly to supernova nucleosynthesis. In previous works, the NDW has been implicated as a possible source of r-process and light p-process isotopes. In this paper we present time-dependent hydrodynamic ...

Although they are but a small fraction of the mass ejected in core-collapse supernovae, neutrino-driven winds (NDWs) from nascent proto-neutron stars (PNSs) have the potential to contribute significantly to supernova nucleosynthesis. In previous works, the NDW has been implicated as a possible source of r-process and light p-process isotopes. In this paper, we present time-dependent hydrodynamic ...

Global transcriptome analysis of whole blood RNA using microarrays has been proven to be challenging due to the high abundance of globin transcripts that constitute 70% of whole blood mRNA. This is a particular problem in patients with sickle cell disease, secondary to the high abundance of globin-expressing nucleated red blood cells and reticulocytes in ...

The knowledge of accurate stellar parameters is paramount in several fields of stellar astrophysics, particularly in the study of extrasolar planets, where often the star is the only visible component and therefore used to infer the planet's fundamental parameters. Another important aspect of the analysis of planetary systems is the stellar activity and the possible ...

Eye tracking was used to measure visual attention of nine forensic document examiners (FDEs) and 12 control subjects on a blind signature comparison trial. Subjects evaluated 32 questioned signatures (16 genuine, eight disguised, and eight forged) which were compared, on screen, with four known signatures of the specimen provider while ...

Several syntactic-based automatic worm signature generators, e.g., Polygraph, have recently been proposed. These systems typically assume that a set of suspicious flows are provided by a flow classifier, e.g., a honeynet or an intrusion detection system, that often introduces �noise � due to difficulties and imprecision in flow classification. The algorithms for extracting ...

We describe biometric watermarking procedure based on object recognition for accurate facial signature authentication. An adaptive metric learning algorithm incorporating watermark and facial signatures is introduced to separate an arbitrary pattern of unknown intruder classes from that of known true-user ones. The verification rule of ...

Silica (SiO(2)) is an abundant component of the Earth whose crystalline polymorphs play key roles in its structure and dynamics. First principle density functional theory (DFT) methods have often been used to accurately predict properties of silicates, but fundamental failures occur. Such failures occur even in silica, the simplest silicate, and ...

Silica (SiO₂) is an abundant component of the Earth whose crystalline polymorphs play key roles in its structure and dynamics. First principle density functional theory (DFT) methods have often been used to accurately predict properties of silicates, but fundamental failures occur. Such failures occur even in silica, the simplest ...

BackgroundThe dinucleotide relative abundance profile can be regarded as a genomic signature because, despite diversity between species, it varies little between 50 kilobase or longer windows on a given genome. Both the causes and the functional significance of this phenomenon could be illuminated by determining if it persists on smaller scales. The ...

Thirty-five deep ocean sediment samples from the Central Pacific sediment core LL-44 GPC-3 were examined for their noble gas composition and mineralogy. The samples spanned from 30 to 71 Ma in age, including the Cretaceous/Tertiary (K/T), Paleocene/Eocene (P/E), and Eocene/Oligocene (E/O) boundaries. From each bulk sediment sample, magnetic grains (5-200 ?g/g; 1-20 ?m diameter) were isolated and ...

Although the Triassic-Jurassic (T-J) boundary marks one of the `big five' extinction events of the Phanerozoic, the processes driving global change at that time remain obscure. The main contenders include substantial volcanic activity, large meteorite impacts, and major tectonic realignment. Recent results from high-precision Ar-Ar and U-Pb dating suggest that a major phase of volcanic activity, ...

To obtain accurate analyses by neutron absorptiometry it is essential that the isotope abundance of the element determined be the same as that of the calibration standard. The effect was used for the comparison and determination of B/sup 10/ isotope abundances in various boron hydrides. Precision is in the plus or minus 0.1% ...

We review the characteristics of nucleosynthesis and radioactivities in ``hypernovae'', i.e., supernovae with very large explosion energies (>~1052 ergs) and their ?-ray line signatures. We also discuss the 44Ti line ?-rays from SN1987A and the detectability with INTEGRAL. Signatures of hypernova nucleosynthesis are seen in the large [(Ti, Zn)/Fe] ...

Transfer ribonucleic acids (tRNAs) are challenging to identify and quantify from unseparated mixtures. Our lab previously developed the signature digestion approach for identifying tRNAs without specific separation. Here we describe the combination of relative quantification via enzyme-mediated isotope labeling with this signature digestion approach for ...

Transfer ribonucleic acids (tRNAs) are challenging to identify and quantify from unseparated mixtures. Our lab previously developed the signature digestion approach for identifying tRNAs without specific separation. Here we describe the combination of relative quantification via enzyme-mediated isotope labeling with this signature digestion approach for ...

BackgroundAnalyses of DNA sequences from cultivated microorganisms have revealed genome-wide, taxa-specific nucleotide compositional characteristics, referred to as genome signatures. These signatures have far-reaching implications for understanding genome evolution and potential application in classification of metagenomic sequence fragments. However, ...

Pacific Northwest National Laboratory (PNNL) is currently developing multicoincidence systems to perform trace radionuclide analysis at or near the sample collection point, for applications that include emergency response, nuclear forensics, and environmental monitoring. Quantifying radionuclide concentrations with these systems requires a library of accurate emission ...

The development and testing of thermal signature tracking algorithms burdens the developer with a method of testing the algorithm's fidelity. Although actual video is normally used for testing tracking algorithms, to evaluate performance in a variety of configurations, the acquisition of suitable video data volume is prohibitive. As an alternative to actual video we are ...

Dissected specimens of colorectal cancer (CRC) have been intensively studied using molecular sketches (gene signatures) to obtain a set of discriminator gene signatures for accurate prognosis prediction in individual patients. The discriminators obtained so far are not universally applicable, as the gene sets reflect the method and ...

BackgroundThe promise of modern personalized medicine is to use molecular and clinical information to better diagnose, manage, and treat disease, on an individual patient basis. These functions are predominantly enabled by molecular signatures, which are computational models for predicting phenotypes and ...

A profile likelihood algorithm is proposed for quantitative shotgun proteomics to infer the abundance ratios of proteins from the abundance ratios of isotopically labeled peptides derived from proteolysis. Previously, we have shown that the estimation variability and bias of peptide abundance ratios can be predicted from their profile ...