Particle spectra. Medical search. Frequent questions

In this talk, we discuss the physics modelling of particle spectra arising from dark matter (DM) annihilation or decay. (monash.edu)
The focused transport equation (FTE) includes all the necessary physics for modeling the shock acceleration of energetic particles with a unified description of first-order Fermi acceleration, shock drift acceleration, and shock surfing acceleration. (fit.edu)
Its a shame in areas of particle physics "other than QCD", such events are rare to non-existant. (columbia.edu)
Elementary Particle Physics: Gauss Centre for Supercomputing e.V. (gauss-centre.eu)
With the help of world-class supercomputing resources from the Gauss Centre for Supercomputing (GCS), a team of researchers led by Prof. Zoltan Fodor at the University of Wuppertal has continued to advance the state-of-the-art in elementary particle physics. (gauss-centre.eu)
Particle accelerators are among the world's most effective methods for experiments in materials science and physics. (gauss-centre.eu)
The 27th Rencontres de Blois on "Particle Physics and Cosmology" (Blois2015) will emphasize the increasing interplay between high energy accelerator based physics and cosmology. (cern.ch)
Antineutrinos produced by reactors at the Daya Bay Nuclear Power Plant complex in Shenzhen, China, are measured in a particle physics experiment that is conducted by an international collaboration involving Berkeley Lab researchers. (lbl.gov)
Forward physics is characterized by the production of particles with relatively small transverse momentum, being traditionally associated with soft particle production, which is intrinsically non perturbative and not amenable to first-principles analysis. (lu.se)
My main research interest is in fundamental physics mainly theoretical particle physics but also nuclear physics, general relativity and cosmology. (lu.se)
We have a broad teaching and research spectrum in the subject of physics, with teaching at undergraduate and advanced level at Lund University and at the Faculty of Science. (lu.se)
We have extensive operations related to the international facilities for particle and nuclear physics. (lu.se)

The single-particle spectrum is a distribution of a physical quantity such as energy or momentum. (wikipedia.org)
The electronic kinetic energy estimated from our optical data is about half of that obtained from single-particle ab initio calculations in the ferromagnetic ground state, which indicates intermediate-strength electronic correlations in this system. (nature.com)
Furthermore, comparing the energy and side-slope ratios between the interband-transition peaks at high energies in the experimental and single-particle-calculation-derived optical conductivity spectra with the bandwidth-renormalization factors obtained by many-body calculations enables us to estimate the Coulomb-interaction strength ( U ∼ 4 eV) in Co 3 Sn 2 S 2 . (nature.com)
Besides, a sharp experimental optical conductivity peak at low energy, which is absent in the single-particle-calculation-derived spectrum but is consistent with the optical conductivity peaks obtained by many-body calculations with U ∼ 4 eV, indicates that an electronic band connecting the two Weyl cones is flattened by electronic correlations and emerges near the Fermi energy in Co 3 Sn 2 S 2 . (nature.com)
The trap is designed such that after excitation the individual atoms have single particle energies depending exactly on one of the factors. (uni-ulm.de)
A simultaneous measurement of all single particle energies then gives the factors. (uni-ulm.de)
A trap with a single particle spectrum where the energies depend logarithmically on the quantum numbers can be used for this protocol. (uni-ulm.de)
Single particle spectroscopy techniques have therefore become the standard for understanding how the energy of the localized surface plasmon of individual nanoparticles scales with small changes in the morphology. (acs.org)
This Perspective discusses how different single particle imaging and spectroscopy techniques together with electron microscopy can be applied to reveal the relationships between the plasmonic response and the morphology of individual nanoparticles as well as their assemblies. (acs.org)
Single-Particle Investigation of Plexcitons in Bimetallic Nanorods. (acs.org)
Controlled Overgrowth of Five-Fold Concave Nanoparticles into Plasmonic Nanostars and Their Single-Particle Scattering Properties. (acs.org)

Extreme solar particle events (ESPEs) are rare and the most potent known processes of solar eruptive activity. (lu.se)
In the last decade, five extreme solar particle storms were detected in radionuclide records from ice cores and tree rings over the last 10,000 years. (lu.se)

The December 2023 issue of IEEE Spectrum is here! (ieee.org)

Abstract As to fitting the multi-peaks Brillouin scattering spectrum with traditional method, the maximum power point is usually selected as the benchmark while other extreme value points which are less than the maximum power are lost. (gpxygpfx.com)

In 2018 and 2019, they counted the number of plastic particles in the sea balls that were washed away by the water on four beaches in Mallorca. (c2wlabnews.nl)

Light absorption by phytoplankton, non - algal particles (NAP) and chromophoric dissolved organic matter (CDOM) was investigated at 90 sites of a clear, deep artificial lake (Lake Qiandaohu) to study natural variability of absorption coefficients. (mdpi.com)
Black carbon (BC) is one such emission and denotes soot with strong light absorption in the ultraviolet to infrared spectrum. (lu.se)
Combustion can also generate brown carbon (BrC) particles, with absorption confined to shorter wavelengths than BC and absorption Ångström exponents (AAEs) significantly higher than 1. (lu.se)

Energy Spectrum Of Energetic Particles Accelerated By Shock Waves: Fro" by Pingbing Zuo, Ming Zhang et al. (fit.edu)
Solar energetic particles are emitted in association with solar flares and coronal mass ejections and contribute to the production of cosmogenic radionuclides stored in environmental archives, such as ice cores and tree rings. (lu.se)
Radiation is energy transmitted in the form of electromagnetic waves or energetic particles. (medscape.com)

The masses of the known elementary particles: quarks, leptons and bosons follow from the cosmological model with superconductivity as a result of an obtaining periodic law for the Yukawa coupling constants. (socionic.info)
Using the JUWELS supercomputer at the Jülich Supercomputing Centre, researchers are simulating the so-called Brout-Englert-Higgs mechanism, or how elementary particles acquire mass. (gauss-centre.eu)

1972 ) used particle size spectra to provide new insights into plankton communities functioning, and Platt and Denman ( 1977 ) published analyses including normalized size spectra. (springer.com)

For a parallel shock, the high-energy component of the power-law spectrum, with the spectral index being the same as the prediction of DSA theory, starts just a few times the injection speed. (fit.edu)
For an oblique or quasi-perpendicular shock, the high-energy component of the spectrum exhibits a double power-law distribution: a harder power-law spectrum followed by another power-law spectrum with a slope the same as the spectral index of DSA. (fit.edu)
A Method of Terahertz Spectrum Material Identification Based on Wavelet Coefficient Graph [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(12): 3665-3670. (gpxygpfx.com)
Using ice core radionuclide data it is possible to reconstruct the spectral hardness and fluence spectra of the events, which are estimated to be about 100 times larger than modern events, as well as their relationship with solar activity levels. (lu.se)

For decades, researchers have turned to the twin power of state-of-the-art particle accelerator facilities and world-class supercomputing facilities to better understand the mysterious world of subatomic particles. (gauss-centre.eu)
Ionizing radiation can also be in the form of particulate radiation, which includes subatomic l charged or neutral particles traveling near the speed of light and therefore with high very high kinetic energy. (medscape.com)

The BeNano 180 Zeta Pro particle analyzer from Bettersize Instruments Ltd. is designed for nanoparticle size, zeta potential, and molecular weight analysis. (photonics.com)
The crystal size spectrum was determined using a particle size analyzer that combines electronic pulse area analysis and resistance measurement. (uni-luebeck.de)

About 15 months ago, The Gordon and Betty Moore Foundation awarded US $13.5 million to a five-year project involving an international collection of universities and national labs to start work on shrinking particle accelerators so that they could fit on a chip. (ieee.org)
In terms of operation, the miniaturized accelerator works on the same basic principles of today's large-scale particle accelerators. (ieee.org)

The mutual influence of the processes of radiation and generation of excitations in the quantum crystal with the channeled particle (electron or positron) is considered. (infn.it)
The emergence of new peaks in the emission spectrum of such a channeled particle associated with the processes of simultaneous resonant hard gamma-quantum and plasmon excitation during its motion in the crystal is predicted. (infn.it)
This set of processes lead to stable particles (photons, positrons, anti-protons, and neutrinos among others) which travel for very long distances before reaching the detectors. (monash.edu)
Processes influencing size spectra, such as recruitment and predation pressure, vary seasonally, and understanding this variation is necessary to interpret patterns in time or space. (springer.com)
Soot formation and oxidation processes were studied by extracting particles from the cylinder of a heavy-duty diesel engine. (lu.se)

A research team led by Prof. Frithjof Karsch at Bielefeld University has been using the JUWELS supercomputer at the Jülich Supercomputing Centre (JSC) as part of the international HOTQCD collaboration to better understand the conditions under which particles made of protons, neutrons, and pions go through phase transitions, and how those changes impact the system's behavior and give rise to new forms of matter, such as quark-gluon plasma. (gauss-centre.eu)
Alpha particles are charged particles made up of 2 protons and 2 neutrons-essentially the nucleus of a helium atom. (medscape.com)

The products were characterized by X-ray diffraction (XRD), nitrogen adsorption-desorption, energy dispersive X-ray spectroscopy (EDS), vibrating sample magnetometer (VSM), transmission electron microscopy (TEM), and Raman spectrum. (hindawi.com)

We investigate the influence on SHM predictions of hadron mass spectra for light-flavor baryons and mesons modified by the addition of about 500 new states as predicted by lattice QCD and a relativistic quark model. (isoquant-heidelberg.de)

At high energies, the spectrum approaches a power law consistent with the standard diffusive shock acceleration (DSA) theory. (fit.edu)

This new estimate means that about 30 percent more children may have autism spectrum disorders (ASD) than previously thought. (livescience.com)
Autism spectrum disorders are characterized by deficits in social communication and social interaction and restricted, repetitive patterns of behavior, interests, or activities. (livescience.com)

The distance between the particle transverse motion levels should be equal to the sum of the photon energy and quantum plasmon energy in the coordinate system associated with the moving particle. (infn.it)
[9], the authors have studied the rapidity, y, dependence of the average transverse momentum of charged particles and found that the average transverse momentum pT in CGC approach grows with rapidity, in contrast to what is expected from a collective expansion. (lu.se)

Results from a new scientific study may shed light on a mismatch between predictions and recent measurements of ghostly particles streaming from nuclear reactors-the so-called "reactor antineutrino anomaly," which has puzzled physicists since 2011. (lbl.gov)
We update previous predictions for the pT - spectra using the hybrid formalism of the CGC approach and two phenomenological models for the dipole - target scattering amplitude. (lu.se)

The method allows preconcentration of miniscule particle mass (pg to ng) directly from the sampled aerosol stream through electrostatic deposition of charged particles (30-900 nm) onto a flat-tip microneedle electrode. (cdc.gov)
A novel methodology was introduced to investigate differences in soot maturity using a soot particle aerosol mass spectrometer (SP AMS). (lu.se)

In this case, however, the resulting emission peaks have a large half-width due to the plasmon momentum carryover, in contrast to the conventional channeled particle radiation process without plasmon emission. (infn.it)
For these particles, the pitch angle distribution is highly anisotropic, and the energy spectrum is variable depending on the momentum and pitch angle of injected particles. (fit.edu)

Human papillomavirus 16L1-58L2 chimeric virus-like particles elicit durable neutralizing antibody responses against a broad-spectrum of human papillomavirus. (oncotarget.com)
A "broad spectrum" sunscreen provides protection through the entire spectrum of both UV-B and UV-A as measured by the Critical Wavelength Method. (medscape.com)
Introducing cephamycins and broad-spectrum cephalosporins, such as cefotaxime, ceftazidime, and cefepime, monobactams and carbapenems ( 7 ) initially stopped the widespread occurrence of classic plasmid-mediated TEM-1, TEM-2, SHV-1, and OXA-1 β-lactamases. (cdc.gov)

IEEE Spectrum is the flagship publication of the IEEE - the world's largest professional organization devoted to engineering and applied sciences. (ieee.org)
Create an account to access more content and features on IEEE Spectrum , including the ability to save articles to read later, download Spectrum Collections, and participate in conversations with readers and editors. (ieee.org)
Subscribe to IEEE Spectrum 's newsletter on robots, drones, and automation. (ieee.org)

The present research determined the differences between the surface-enhanced Raman scattering (SERS) spectra of NQ21 peptide molecules adsorbed on solid SERS-active substrates depending on their geometry and composition. (bvsalud.org)
When self-assembly is performed in the presence of suitable molecules, proteinoid nano/micro-capsules can entrap these molecules within the particle core. (nature.com)

The broadness of the resultant size spectrum of droplets influences precipitation likelihood and the radiative properties of clouds. (copernicus.org)
We investigate the effects of accelerated electrons in synthetic spectra from a 3D radiative magnetohydrodynamics simulation to better understand small-scale heating events and their impact on the solar atmosphere. (aanda.org)

However, due to some technological advantages such as automated particle counters (Laser Optical Particle Counter-LOPC, Coulter counter) or acoustic methods (Yurista et al. (springer.com)
Methods for host-independent detection of transducing phage particles have recently been described. (cdc.gov)

Accordingly, CI measurements in these archives allow us to evaluate particle fluxes during ESPEs. (lu.se)
Phosphate buffer solutions of the 30 µg/mL NQ21 peptide at different pH levels were used for the SERS measurements, with silver particles on mesoporous silicon and gold -coated "nanovoids" in macroporous silicon . (bvsalud.org)

Five of CDC's ADDM Network sites (Arkansas, Georgia, Maryland, Utah, and Wisconsin) began monitoring autism spectrum disorder (ASD) in 2018 among 16-year-old adolescents who were initially identified as having characteristics of ASD in 2010. (cdc.gov)

In this paper, the use of particle swarm optimization (PSO) algorithm as a prominent technique is proposed to optimize the weighting coefficients vector. (mmu.edu.my)
In order to improve the feature extraction accuracy of Brillouin scattering spectrum, a hybrid optimization algorithm named MCDM-PSO-LM algorithm is presented based on MCDM and PSO-LM algorithm. (gpxygpfx.com)
The MCDM algorithm can identify and locate the peaks and valleys of multi-peaks Brillouin scattering spectrum accurately. (gpxygpfx.com)

Background: To systematically investigate the common purification techniques for commercially available triamcinolone acetonide preparations and the influence of different filter parameters on final yield, reproducibility and particle size spectrum. (uni-luebeck.de)
In contrast, enlarging the pore size caused a substantial shift in the particle size spectrum due to a selective loss of small crystalline particles. (uni-luebeck.de)
Conclusions: The most common purification techniques vary notably in regard to final triamcinolone doses, reproducibility and particle size spectrum. (uni-luebeck.de)
The appropriate choice of the filter parameters seems to be more important than assumed, as pore size and filter diameter substantially influence both the final TA doses and the particle size of the TA crystals. (uni-luebeck.de)
Size spectra are important descriptors of community structure and can indicate changes in community functioning in response to shifts in environmental conditions. (springer.com)
There are relatively few assessments of benthic size spectra, and most are based on summer samples alone. (springer.com)
Here we compare summer and winter biomass size spectra in the central basin of Kongsfjorden (west Spitsbergen). (springer.com)
Summer-winter invariability of size spectra suggests that benthic community functioning in this Arctic fjordic system is relatively independent from the seasonality in the supply of organic matter produced in water column. (springer.com)
The focus on the importance of size spectra and biomass spectra as descriptive features of marine communities, however, only accelerated more than 50 years later, when Parsons ( 1969 ) and Sheldon et al. (springer.com)
Since then, different kinds of size spectra, focused on either abundance or biomass, have been used to describe aquatic communities in freshwater (e.g. (springer.com)
The utility of size spectra in ecological studies is quite extensive as they have been used as indicators of primary production (Sprules and Barth 2016 ), ecosystem disturbances and/or stability (Zhou et al. (springer.com)
From the XRD spectra, the average particle size has been calculated using the Debye-Scherrer formula and the value is 0.98 nm. (amrita.edu)
The soot particles were characterized for their optical properties, chemical composition, size, and carbon nanostructure (soot maturity). (lu.se)

The energy of the low-lying states below the inelastic threshold are extracted in each case using the standard variational method.The extracted finite-volume spectrum is fitted by the inverse amplitude method simultaneously for both quark masses and extrapolated thereafter to the physical point. (osti.gov)

A comparison of analytical approaches to investigate associations for accelerometry-derived physical activity spectra with health and developmental outcomes in children. (uib.no)

In soft-decision fusion- (SDF-) based cooperative spectrum sensing, weighting the coefficients vector is the main factor affecting the detection performance of cognitive radio networks. (mmu.edu.my)
Silver particles are recommended for peptide detection if it is not urgent to precisely reveal all the characteristic bands, because they provide greater enhancement but are accompanied by analyte destruction. (bvsalud.org)
Bulbul E., Markevitch M., Foster A., Smith R. K., Loewenstein M. & Randall, S.W. Detection of an Unidentified Emission Line in the Stacked X-Ray Spectrum of Galaxy Clusters. (socionic.info)

Situated about 32 miles northeast of Hong Kong, the Daya Bay experiment uses an array of detectors to capture antineutrino signals from particle interactions occurring in a series of liquid tanks. (lbl.gov)

when brain chemicals called glutamate and glycine attach to the receptor, a channel opens, allowing positively charged particles (cations) to flow through. (medlineplus.gov)

The formation of reactive oxygen species (ROS) is an important mechanism in particle-induced toxicity. (lu.se)

All pT spectra exhibit similar source temperatures. (uni-frankfurt.de)

Because the particle mass is collected over a very small area that is smaller than the spatial extent of the laser-induced plasma, the entire mass is available for analysis. (cdc.gov)
Since particles have mass, they are less penetrating than electromagnetic waves and deposit their energy readily. (medscape.com)
Because of their relatively large mass and positive charge, alpha particles are highly effective in transferring energy to tissue but are also easily blocked by a piece of paper or clothing. (medscape.com)

With different signal to noise ratio and linewidth, the results of frequency shift and temperature error show that the MCDM-PSO-LM method can locate every peak and valley of multi-peaks Brillouin scattering spectrum accurately. (gpxygpfx.com)

Essentially, this effect represents the record of the Doppler effect for the process of the simultaneous emission of a photon and a plasmon with the channeled particle. (infn.it)

In this study, the energy spectrum of pickup ions accelerated at shocks of various obliquities is investigated based on the FTE. (fit.edu)
The shock acceleration leads to a two-component energy spectrum. (fit.edu)
Fig. 1: Scaled trap-potential which creates the energy spectrum $ E_n=\ln(n/2+1) $ for $ n=0,1,2,\ldots $ together with the six lowest eigenfunctions as a function of the dimensionless position. (uni-ulm.de)
1] F. Gleisberg, R. Mack, K. Vogel and W. P. Schleich, Factorization with a logarithmic energy spectrum , New J. Phys. (uni-ulm.de)
2] F. Gleisberg, M. Volpp and W. P. Schleich, Factorization with a logarithmic energy spectrum of a two-dimensional potential , Phys. (uni-ulm.de)
3] F. Gleisberg, F. Di Pumpo, G. Wolff, and W. P. Schleich, Prime factorization of arbitrary integers with a logarithmic energy spectrum , J. Phys. (uni-ulm.de)

More than 50 mutations in the GRIN2A gene have been identified in some people with conditions that fall along the epilepsy-aphasia spectrum. (medlineplus.gov)
GRIN2A gene mutations have been found in people with neurological disorders that have features similar to epilepsy-aphasia spectrum disorders (described above) but lacking consistent language problems. (medlineplus.gov)

The study of particle spectra allows us to see the global picture of particle production. (wikipedia.org)
Researchers working on the Study to Explore Early Development (SEED) have recently published many studies reporting on important findings related to autism spectrum disorder (ASD). (cdc.gov)
This study examined the association between insurance status and community-based services received outside of school among preschool-aged children with a prior autism spectrum disorder (ASD) diagnosis. (cdc.gov)
Associations of lipoprotein particle profile and objectively measured physical activity and sedentary time in schoolchildren: a prospective cohort study. (uib.no)
To determine which particles that take part in the spin alignment the study of mirror nuclei will help us. (lu.se)

The synthetic spectra are highly affected by variations in temperature and vertical velocity. (aanda.org)

The fitting curve only has one peak because the multi-peaks Brillouin scattering spectrum is simplified into the highest peak and several small peaks. (gpxygpfx.com)
Thus, it can be used for the feature extraction of multi-peaks Brillouin scattering spectrum. (gpxygpfx.com)

The final triamcinolone amount inversely correlated with the filter diameter due to a uniform loss of crystalline particles. (uni-luebeck.de)

Including previous results for K0s Lambda , and Lambda -bar, we account for all important contributions to particle production. (uni-frankfurt.de)

The ability of soot particles to form ROS increased with increasing combustion temperatures. (lu.se)

For the IB spectra of beta(-) particle emitters, a simple formula has been also proposed by using the theory of Knipp, Uhlenbeck and Bloch (KUB). (uludag.edu.tr)
The IB spectra of P-32(15), Rb-86(37), Sr-89(38), Sr-90(38), Y-90(39), Tc-99(43) Tm-170(69) and W-185(74) obtained by using this code and the KUB theory were compared with experiments. (uludag.edu.tr)

If sterile neutrinos-theoretical particles that are a possible source of the universe's vast unseen or "dark" matter-were the source of the anomaly, then the experimenters would observe an equal depletion in the number of antineutrinos for each of the fuel ingredients, but the experimental results disfavor this hypothesis. (lbl.gov)

Interpretation of associations between the accelerometry physical activity spectrum and cardiometabolic health and locomotor skills in two cohorts of children using raw, log-transformed, or compositional data. (uib.no)

Anatomy13

Organisms14

Chemicals and Drugs92

Analytical, Diagnostic and Therapeutic Techniques and Equipment60

Phenomena and Processes65

Disciplines and Occupations13

Technology, Industry, Agriculture16

Information Science7

Health Care9

Physics12

Single-particle11

Extreme solar particle2

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Abstract1

20191

Absorption3

Energetic particles3

Elementary particles2

PLANKTON1

Spectral4

Subatomic2

Analyzer2

Accelerators2

Processes5

Protons2

Electron1

Hadron1

High energies1

Autism Spectrum2

Transverse2

Predictions2

Aerosol2

Momentum2

Broad-spectrum3

IEEE Spectrum3

Molecules2

Radiative2

Methods2

Measurements2

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Algorithm3

Size13

Masses1

Investigate1

DETECTION3

Detectors1

CATIONS1

Mechanism1

Exhibit1

Mass3

Shift1

Simultaneous1

Energy spectrum6

Mutations2

Study5

Variations1

Peaks2

Diameter1

Contributions1

Temperatures1

Theory2

Equal1

Physical1