596 research outputs found
Validation of the Childhood Career Development Scale Among Italian Middle School Students
During early adolescence, individuals engage in exploring educational opportunities, beginning to develop a career identity, contemplate future careers, and make tentative career decisions. Choices made during this period may have a strong effect on one\u2019s academic and career future, and in many countries, young adolescents must make important and sometimes final academic and career choices that impact the rest of their lives. Despite this, research on early adolescence is severely lacking. To address this gap, a validation study of the Childhood Career Development Scale (CCDS) was conducted with a young adolescent Italian sample. Consistent with previous research with younger samples, support was found for an eight-factor structure of the CCDS. Convergent validity was supported by positive associations with exploration, students\u2019 ideas, attitudes, and behaviors regarding their academic and career future and career self-efficacy. These findings support Super\u2019s dimensional model of childhood career development through early adolescence as originally theorized
Temporal behavior of the inverse spin Hall voltage in a magnetic insulator-nonmagnetic metal structure
It is demonstrated that upon pulsed microwave excitation, the temporal
behavior of a spin-wave induced inverse spin Hall voltage in a magnetic
insulator-nonmagnetic metal structure is distinctly different from the temporal
evolution of the directly excited spin-wave mode from which it originates. The
difference in temporal behavior is attributed to the excitation of long-lived
secondary spin-wave modes localized at the insulator-metal interface
Subcutaneous Haemangiosarcoma in a Cockatiel ( Nymphicus hollandicus )
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/74932/1/j.1439-0442.2006.00825.x.pd
Power Versus Affiliation in Political Ideology
Posited motivational differences between liberals and conservatives have historically been controversial. This motivational interface has recently been bridged, but the vast majority of studies have used self-reports of values or motivation. Instead, the present four studies investigated whether two classic social motive themes—power and affiliation—vary by political ideology in objective linguistic analysis terms. Study 1 found that posts to liberal chat rooms scored higher in standardized affiliation than power, whereas the reverse was true of posts to conservative chat rooms. Study 2 replicated this pattern in the context of materials posted to liberal versus conservative political news websites. Studies 3 and 4, finally, replicated a similar interactive (ideology by motive type) pattern in State of the State and State of the Union addresses. Differences in political ideology, these results suggest, are marked by, and likely reflective of, mind-sets favoring affiliation (liberal) or power (conservative). </jats:p
Electronic Structure and Lattice Relaxation Related to Fe in Mgo
The electronic structure of Fe impurity in MgO was calculated by the linear
muffin-tin orbital--full-potential method within the conventional local-density
approximation (LDA) and making use of the LDA+ formalism. The importance of
introducing different potentials, depending on the screened Coulomb integral
, is emphasized for obtaining a physically reasonable ground state of the
Fe ion configuration. The symmetry lowering of the ion electrostatic
field leads to the observed Jahn--Teller effect; related ligand relaxation
confined to tetragonal symmetry has been optimized based on the full-potential
total energy results. The electronic structure of the Fe ion is also
calculated and compared with that of Fe.Comment: 13 pages + 4 PostScript figures, Revtex 3.0, SISSA-CM-94-00
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De novo assembly of the cattle reference genome with single-molecule sequencing.
BackgroundMajor advances in selection progress for cattle have been made following the introduction of genomic tools over the past 10-12 years. These tools depend upon the Bos taurus reference genome (UMD3.1.1), which was created using now-outdated technologies and is hindered by a variety of deficiencies and inaccuracies.ResultsWe present the new reference genome for cattle, ARS-UCD1.2, based on the same animal as the original to facilitate transfer and interpretation of results obtained from the earlier version, but applying a combination of modern technologies in a de novo assembly to increase continuity, accuracy, and completeness. The assembly includes 2.7 Gb and is >250× more continuous than the original assembly, with contig N50 >25 Mb and L50 of 32. We also greatly expanded supporting RNA-based data for annotation that identifies 30,396 total genes (21,039 protein coding). The new reference assembly is accessible in annotated form for public use.ConclusionsWe demonstrate that improved continuity of assembled sequence warrants the adoption of ARS-UCD1.2 as the new cattle reference genome and that increased assembly accuracy will benefit future research on this species
Development of a prototype superconducting radio-frequency cavity for conduction-cooled accelerators
The higher efficiency of superconducting radio-frequency (SRF) cavities
compared to normal-conducting ones enables the development of high-energy
continuous-wave linear accelerators (linacs). Recent progress in the
development of high-quality NbSn film coatings along with the availability
of cryocoolers with high cooling capacity at 4 K makes it feasible to operate
SRF cavities cooled by thermal conduction at relevant accelerating gradients
for use in accelerators. A possible use of conduction-cooled SRF linacs is for
environmental applications, requiring electron beams with energy of
MeV and 1 MW of power. We have designed a 915 MHz SRF linac for such an
application and developed a prototype single-cell cavity to prove the proposed
design by operating it with cryocoolers at the accelerating gradient required
for 1 MeV energy gain. The cavity has a m thick NbSn film on
the inner surface, deposited on a mm thick bulk Nb substrate and a bulk
mm thick Cu outer shell with three Cu attachment tabs. The cavity was
tested up to a peak surface magnetic field of 53 mT in liquid He at 4.3 K. A
horizontal test cryostat was designed and built to test the cavity cooled with
three Gifford-McMahon cryocoolers. The rf tests of the conduction-cooled
cavity, performed at General Atomics, achieved a peak surface magnetic field of
50 mT and stable operation was possible with up to 18.5 W of rf heat load. The
peak frequency shift due to microphonics was 23 Hz. These results represent the
highest peak surface magnetic field achieved in a conduction-cooled SRF cavity
to date and meet the requirements for a 1 MeV energy gain
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