34,566 research outputs found
Evolving Charge Correlations in a Hybrid Model with both Hydrodynamics and Hadronic Boltzmann Descriptions
Correlations related to local charge conservation provide insight into the
creation and evolution of up, down and strange charges in the quark-gluon
plasma. Here, the evolution of charge correlations is overlaid onto a
hydrodynamic calculation for the regions where temperature exceed 155 MeV, then
transferred and carried through a microscopic model of the hadronic stage.
Thus, for the first time, charge correlations are evolved consistently with a
full state-of-the-art description of a heavy-ion collision. The charge
correlations are projected onto charge balance functions, which characterize
such correlations in the final state, and are presented as a function of
relative rapidity and relative azimuthal angle for Au/Au collisions. The role
of the hadronic stage is investigated. Calculation of the contribution to
charge-separation observables related to the chiral magnetic effect are also
presented. Calculations are compared to data from the STAR Collaboration at
RHIC (Relativistic Heavy Ion Collider) data when possible.Comment: 29 pages 5 figure
Weather and Climate Information for Tourism
The tourism sector is one of the largest and fastest growing global industries and is a significant contributor to national and local economies around the world. The interface between climate and tourism is multifaceted and complex, as climate represents both a vital resource to be exploited and an important limiting factor that poses risks to be managed by the tourism industry and tourists alike. All tourism destinations and operators are climate-sensitive to a degree and climate is a key influence on travel planning and the travel experience. This chapter provides a synopsis of the capacities and needs for climate services in the tourism sector, including current and emerging applications of climate services by diverse tourism end-users, and a discussion of key knowledge gaps, research and capacity-building needs and partnerships that are required to accelerate the application of climate information to manage risks to climate variability and facilitate successful adaptation to climate change
Weather and Climate Information for Tourism
The tourism sector is one of the largest and fastest growing global industries and is a significant contributor to national and local economies around the world. The interface between climate and tourism is multifaceted and complex, as climate represents both a vital resource to be exploited and an important limiting factor that poses risks to be managed by the tourism industry and tourists alike. All tourism destinations and operators are climate-sensitive to a degree and climate is a key influence on travel planning and the travel experience. This chapter provides a synopsis of the capacities and needs for climate services in the tourism sector, including current and emerging applications of climate services by diverse tourism end-users, and a discussion of key knowledge gaps, research and capacity-building needs and partnerships that are required to accelerate the application of climate information to manage risks to climate variability and facilitate successful adaptation to climate change
The Direction of Australian Investment from 1985/86 to 1988/89
Using unpublished data at a disaggregated level, this paper provides a detailed picture of the direction of investment over the 1985/86 to 1988/89 investment boom. Most of the growth in non-farm capital expenditure has been concentrated in a few industries, in particular, office construction. We also calculate an improved measure of the proportion of manufacturing investment which was directed towards tradeable capacity. This shows a modest rise in the latter part of the period studied.
Splitting Line Patterns in Free Groups
We construct a boundary of a finite rank free group relative to a finite list
of conjugacy classes of maximal cyclic subgroups. From the cut points and
uncrossed cut pairs of this boundary we construct a simplicial tree on which
the group acts cocompactly. We show that the quotient graph of groups is the
JSJ decomposition of the group relative to the given collection of conjugacy
classes.
This provides a characterization of virtually geometric multiwords: they are
the multiwords that are built from geometric pieces. In particular, a multiword
is virtually geometric if and only if the relative boundary is planar.Comment: 22 pages, 6 figures; v2 fixed a few typos; v3 38 pages, 21 figures;
v4 30 pages, 11 figures 'Preliminaries' section expanded to make paper
self-contained and split into two sections. Some arguments refactored and
simplified. Paper streamlined; v5 56 pages, 21 figures Added examples and
improved exposition according to referee comments. To appear in Algebraic &
Geometric Topolog
The Technology of Terror: Accounting for the Strategic Use of Terrorism
To comprehend why a group would intentionally target civilians, we need to understand why other groups do not. In this chapter, we argue that disgruntled groups face three main choices when addressing their dissatisfaction: suffering a disadvantageous peace, engaging in unconventional warfare, or engaging in conventional warfare. We further disaggregate the choice of unconventional warfare into terrorism and guerrilla warfare. By focusing on asymmetrical aspects of the problem and the strategic interactions between the insurgent group, its complicit public, and the superior force of the state, we disentangle the technology of terror.
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Break up the band: Laparoscopic Adjustable Gastric Banding-associated Discitis and Osteomyelitis
Obesity is an epidemic that adversely affects millions of Americans. In 2017, the Center for Disease Control and Prevention reported that 93.3 million Americans suffer from obesity.1 Many individuals have undergone laparoscopic adjustable gastric banding (LAGB) procedures in order to lose weight. The procedure is thought to be safe with complication rates reported as low as 1.6% following surgery.2 We present a case of LAGB-associated discitis and osteomyelitis 20 years after placement and examine the current literature on the complication rates of bariatric surgery along with the rare injuries following LAGB placement
NONCONSTANT PRICE EXPECTATIONS AND ACREAGE RESPONSE: THE CASE OF COTTON PRODUCTION IN GEORGIA
An adaptive regression model is used to examine the relative importance of cash and government support prices in determining cotton production over time. The results show that the cash price is more important as a source of price information for cotton producers than the government program price. The cash price was shown to have a greater influence on acreage response in every year, including periods thought to be dominated by government commodity programs.Adaptive regression, Cotton acreage response, Price expectations, Crop Production/Industries,
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