1,900 research outputs found
Instructional Decision-Making among Expert Choral and Instrumental Directors: How Musical Setting Influences Pedagogy
In large music ensembles, directors make countless instructional decisions on a daily basis that indicate their learning priorities and guide student learning. In particular, expert music directors (i.e., those having earned a master’s degree and/or National Board Certification) have advanced problem-solving strategies and effective means of fostering student learning in their ensembles. To explore the influence of musical setting on directors’ instructional decision-making, the authors examined expert choral and instrumental directors’ perspectives on instructional decision-making. Forty experienced music teachers employed as either a choral or instrumental ensemble music teachers wrote open-ended responses to three scenarios, each representing different instructional challenges. Three main themes emerged related to instructional challenges: (1) Pedagogy, (2) Student Motivation, and (3) Classroom Management. Within each theme, the authors articulated multiple topics that revealed similarities and differences between the choral and instrumental settings. Understanding these comparisons and contrasts by musical setting is essential to enhancing teacher education programs. Implications include improving teachers’ self-awareness and advancing professional development opportunities for both choral and instrumental music directors
Extended Photometry for the DEEP2 Galaxy Redshift Survey: A Testbed for Photometric Redshift Experiments
This paper describes a new catalog that supplements the existing DEEP2 Galaxy
Redshift Survey photometric and spectroscopic catalogs with ugriz photometry
from two other surveys; the Canada-France-Hawaii Legacy Survey (CFHTLS) and the
Sloan Digital Sky Survey (SDSS). Each catalog is cross-matched by position on
the sky in order to assign ugriz photometry to objects in the DEEP2 catalogs.
We have recalibrated the CFHTLS photometry where it overlaps DEEP2 in order to
provide a more uniform dataset. We have also used this improved photometry to
predict DEEP2 BRI photometry in regions where only poorer measurements were
available previously. In addition, we have included improved astrometry tied to
SDSS rather than USNO-A2.0 for all DEEP2 objects. In total this catalog
contains ~27,000 objects with full ugriz photometry as well as robust
spectroscopic redshift measurements, 64% of which have r > 23. By combining the
secure and accurate redshifts of the DEEP2 Galaxy Redshift Survey with ugriz
photometry, we have created a catalog that can be used as an excellent testbed
for future photo-z studies, including tests of algorithms for surveys such as
LSST and DES.Comment: 12 pages, 6 figures and 5 tables. Accepted to The Astrophysical
Journal Supplement. Catalogs are publicly available at
http://deep.ps.uci.edu/DR4/photo.extended.htm
State of the States 2006
Summarizes major state policy developments in 2005, and projects likely trends for 2006. Focuses on public education, affordable health care, aging, taxes, homeland security, immigration, and energy. Profiles newly elected governors
Second messenger/signal transduction pathways in major mood disorders: Moving from membrane to mechanism of action, part II: bipolar disorder
The etiopathogenesis and treatment of major mood disorders have historically focused on modulation of monoaminergic (serotonin, norepinephrine, dopamine) and amino acid [γ-aminobutyric acid (GABA), glutamate] receptors at the plasma membrane. Although the activation and inhibition of these receptors acutely alter local neurotransmitter levels, their neuropsychiatric effects are not immediately observed. This time lag implicates intracellular neuroplasticity as primary in the mechanism of action of antidepressants and mood stabilizers. The modulation of intracellular second messenger/signal transduction cascades affects neurotrophic pathways that are both necessary and sufficient for monoaminergic and amino acid–based treatments. In this review, we will discuss the evidence in support of intracellular mediators in the pathophysiology and treatment of preclinical models of despair and major depressive disorder (MDD). More specifically, we will focus on the following pathways: cAMP/PKA/CREB, neurotrophin-mediated (MAPK and others), p11, Wnt/Fz/Dvl/GSK3β, and NFκB/ΔFosB. We will also discuss recent discoveries with rapidly acting antidepressants, which activate the mammalian target of rapamycin (mTOR) and release of inhibition on local translation via elongation factor stimulation. Throughout this discourse, we will highlight potential intracellular targets for therapeutic intervention. Finally, future clinical implications are discussed
Quantum walks of correlated photon pairs in two-dimensional waveguide arrays
We demonstrate quantum walks of correlated photons in a 2D network of
directly laser written waveguides coupled in a 'swiss cross' arrangement. The
correlated detection events show high-visibility quantum interference and
unique composite behaviour: strong correlation and independence of the quantum
walkers, between and within the planes of the cross. Violations of a
classically defined inequality, for photons injected in the same plane and in
orthogonal planes, reveal non-classical behaviour in a non-planar structure.Comment: 5 pages, 5 figure
Scattered Light from Close-in Extrasolar Planets: Prospects of Detection with the MOST Satellite
The ultra-precise photometric space satellite MOST (Microvariability and
Oscillations of STars) will provide the first opportunity to measure the
albedos and scattered light curves from known short-period extrasolar planets.
Due to the changing phases of an extrasolar planet as it orbits its parent
star, the combined light of the planet-star system will vary on the order of
tens of micromagnitudes. The amplitude and shape of the resulting light curve
is sensitive to the planet's radius and orbital inclination, as well as the
composition and size distribution of the scattering particles in the planet's
atmosphere.
To predict the capabilities of MOST and other planned space missions, we have
constructed a series of models of such light curves, improving upon earlier
work by incorporating more realistic details such as: limb darkening of the
star, intrinsic granulation noise in the star itself, tidal distortion and
back-heating, higher angular resolution of the light scattering from the
planet, and exploration of the significance of the angular size of the star as
seen from the planet. We use photometric performance simulations of the MOST
satellite, with the light curve models as inputs, for one of the mission's
primary targets, Bo\"otis. These simulations demonstrate that, even
adopting a very conservative signal detection limit of 4.2 mag in
amplitude (not power), we will be able to either detect the Bo\"otis
planet light curve or put severe constraints on possible extrasolar planet
atmospheric models.Comment: Accepted to ApJ, 24 pages, 8 figure
Recommended from our members
Radiation re-solution of fission gas in non-oxide nuclear fuel
Renewed interest in fast nuclear reactors is creating a need for better understanding of fission gas bubble behavior in non-oxide fuels. Collisions between fission fragments and their subsequent cascades can knock fission gas atoms out of bubbles and back into the fuel lattice, resulting in a loss term for the bubble. By assuming these collisions can be treated as binary collisions, we calculated a re-solution parameter as a function of bubble radius. The calculations showed that there is a sharp decrease as bubble size increases until about 100 nm when the re-solution parameter stays nearly constant. The bubble size dependence may explain the large bubble size distribution found in some uranium carbide and nitride fuels. Furthermore, our model shows ion cascades created in the fuel result in many more implanted fission gas atoms than collisions directly with fission fragments. Utilization of our calculated re-solution parameter can be used to find a re-solution rate for future bubble behavior simulations
Conflicting Loyalties Facing In-House Counsel: Ethical Care and Feeding of the Ravenous Multi-Headed Client The Fifth Annual Symposium on Legal Malpractice and Professional Responsibility.
Because of corporate scandals that shook the business world, legislative, corporate, and public fingers immediately pointed at corporate attorneys for allowing such egregious conduct to occur. In 1983, the American Bar Association (ABA) passed Model Rule 1.13, which promoted the entity theory. Under the entity theory, the organization is the in-house counsel’s only client; and the in-house counsel’s primary duty is to act in the best interest of the organization. Whether the issue is deciding to make an executive compensation disclosure in a proxy statement, taking on a dual role within the organization, acting in compliance with heightened professional responsibility requirements under the Sarbanes-Oxley Act of 2002 (SOX), or preparing witnesses for corporate investigations, in-house counsel will avoid ethical hot water if they consistently act in the best interest of the organization. In an effort to protect stakeholders, the Securities and Exchange Commission (SEC) passed Rule 205. Rule 205 is designed to increase confidence in public companies by ensuring that attorneys who represent issuers report up the corporate ladder evidence of material violations by their officers and employees. The result is that Rule 205 has made corporate attorneys into “gatekeepers.” Rule 205’s permissive disclosure provision acts essentially as a whistleblower license for attorneys to use in a last-ditch effort to protect third parties when the highest authorities within the organization fail to take appropriate remedial measures. Thus, in-house counsel is expected to be the first line of defense against corporate irresponsibility and is expected to take a stand against impropriety
Conflicting Loyalties Facing In-House Counsel: Ethical Care and Feeding of the Ravenous Multi-Headed Client The Fifth Annual Symposium on Legal Malpractice and Professional Responsibility.
Because of corporate scandals that shook the business world, legislative, corporate, and public fingers immediately pointed at corporate attorneys for allowing such egregious conduct to occur. In 1983, the American Bar Association (ABA) passed Model Rule 1.13, which promoted the entity theory. Under the entity theory, the organization is the in-house counsel’s only client; and the in-house counsel’s primary duty is to act in the best interest of the organization. Whether the issue is deciding to make an executive compensation disclosure in a proxy statement, taking on a dual role within the organization, acting in compliance with heightened professional responsibility requirements under the Sarbanes-Oxley Act of 2002 (SOX), or preparing witnesses for corporate investigations, in-house counsel will avoid ethical hot water if they consistently act in the best interest of the organization. In an effort to protect stakeholders, the Securities and Exchange Commission (SEC) passed Rule 205. Rule 205 is designed to increase confidence in public companies by ensuring that attorneys who represent issuers report up the corporate ladder evidence of material violations by their officers and employees. The result is that Rule 205 has made corporate attorneys into “gatekeepers.” Rule 205’s permissive disclosure provision acts essentially as a whistleblower license for attorneys to use in a last-ditch effort to protect third parties when the highest authorities within the organization fail to take appropriate remedial measures. Thus, in-house counsel is expected to be the first line of defense against corporate irresponsibility and is expected to take a stand against impropriety
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