1,055 research outputs found
Farm & Home Science Vol. 17 No. 1, March 1956
Juices and purees, by Joan Barber 2
An experimental garden, by Otto Riethmann 5
Chlorosis, by Herman Wiebe 6
Chelates offer promise in control of chlorosis, by R. L. Smith and David D. Neher 8
Hybridization, next big step in turkey breeding, by J. David Carson 11
Out-of-state shipment of Utah cattle, by Lynn H. Davis 12
A better potato variety for Utah, by DeVere R. McAllister and Rex F. Nielson 14
Best strawberries for freezing, by Robert A. Norton 17
Will agricultural chemicals destroy the fertility of your soils? by L. W. Jones 18
Stilbestrol increases rate of gain and feed utilization in lambs, by M. A. Madsen, R. J. Raleigh, and L. E. Harris 20
Cooperative important in the agriculture of Utah, by W. Preston Thomas 21
Spotted alfalfa aphids invade Utah, by George F. Knowlton 2
All-particle primary energy spectrum in the 3-200 PeV energy range
We present all-particle primary cosmic-ray energy spectrum in the 3-200 PeV
energy range obtained by a multi-parametric event-by-event evaluation of the
primary energy. The results are obtained on the basis of an expanded EAS data
set detected at mountain level (700 g/cm^2) by the GAMMA experiment. The energy
evaluation method has been developed using the EAS simulation with the SIBYLL
interaction model taking into account the response of GAMMA detectors and
reconstruction uncertainties of EAS parameters. Nearly unbiased (<5%) energy
estimations regardless of a primary nuclear mass with an accuracy of about
15-10% in the 3-200 PeV energy range respectively are attained. An irregularity
('bump') in the spectrum is observed at primary energies of ~74 PeV. This bump
exceeds a smooth power-law fit to the data by about 4 standard deviations. Not
rejecting stochastic nature of the bump completely, we examined the systematic
uncertainties of our methods and conclude that they cannot be responsible for
the observed feature.Comment: Accepted by J.Phys.G: Nucl.Part.Phy
EAS muon distributions and primary mass composition from the GAMMA installation
Abstract The phenomenological characteristics of the muon component of extensive air showers with energies 10 6 â10 7 GeV are obtained with the GAMMA installation at Mt. Aragats in Armenia, (3200m a.s.l., 700 g.cm â2 ). The experimental results are compared with the simulation carried out using the CORSIKA code. A new selection parameter is analysed for an unbiased determination of the primary mass composition
Effects of Ground-State Correlations on High Energy Scattering off Nuclei: the Case of the Total Neutron-Nucleus Cross Section
With the aim at quantitatively investigating the longstanding problem
concerning the effect of short range nucleon-nucleon correlations on scattering
processes at high energies, the total neutron-nucleus cross section is
calculated within a parameter-free approach which, for the first time, takes
into account, simultaneously, central, spin, isospin and tensor nucleon-nucleon
(NN) correlations, and Glauber elastic and Gribov inelastic shadowing
corrections. Nuclei ranging from 4He to 208Pb and incident neutron momenta in
the range 3 GeV/c - 300 GeV/c are considered; the commonly used approach which
approximates the square of the nuclear wave function by a product of one-body
densities is carefully analyzed, showing that NN correlations can play a
non-negligible role in high energy scattering off nuclei.Comment: 5 pages, 3 figure
Summary of the Very Large Hadron Collider Physics and Detector Subgroup
We summarize the activity of the Very Large Hadron Collider Physics and
Detector subgroup during Snowmass 96.Comment: To appear in the Proceedings of the 1996 DPF/DPB Summer Study on New
Directions for High-Energy Physics, Snowmass 9
Benchmark low-mass objects in Moving Groups
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.In order to compile a sample of ultracool dwarfs that will serve as benchmarks for testing theoretical formation and evolutionary models, we selected low-mass cool (>M7) objects that are potentially members of five known young Moving Groups in the solar neighbourhood. We have studied the kinematics of the sample, finding that 49 targets belong to the young disk area, from which 36 are kinematic member of one of the five moving groups under study. Some of the identified low-mass members have been spectroscopically characterised (T-eff, log g) and confirmed as young members through a detailed study of age indicators
In-vivo magnetic resonance imaging of hyperpolarized silicon particles
Silicon-based micro and nanoparticles have gained popularity in a wide range
of biomedical applications due to their biocompatibility and biodegradability
in-vivo, as well as a flexible surface chemistry, which allows drug loading,
functionalization and targeting. Here we report direct in-vivo imaging of
hyperpolarized 29Si nuclei in silicon microparticles by MRI. Natural physical
properties of silicon provide surface electronic states for dynamic nuclear
polarization (DNP), extremely long depolarization times, insensitivity to the
in-vivo environment or particle tumbling, and surfaces favorable for
functionalization. Potential applications to gastrointestinal, intravascular,
and tumor perfusion imaging at sub-picomolar concentrations are presented.
These results demonstrate a new background-free imaging modality applicable to
a range of inexpensive, readily available, and biocompatible Si particles.Comment: Supplemental Material include
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