2,550 research outputs found
New Keynesian versus old Keynesian government spending multipliers
Renewed interest in fiscal policy has increased the use of quantitative models to evaluate policy. Because of modeling uncertainty, it is essential that policy evaluations be robust to alternative assumptions. We find that models currently being used in practice to evaluate fiscal policy stimulus proposals are not robust. Government spending multipliers in an alternative empirically-estimated and widely-cited new Keynesian model are much smaller than in these old Keynesian models; the estimated stimulus is extremely small with GDP and employment effects only one-sixth as large
Multidimentional Citizenship: Educational Policy for the Twenty-first Century
As we approach the end of this turbulent century and prepare to meet the challenges of the next, the question of what constitutes education for citizenship in various nations appropriate to the demands and needs of a rapidly changing global community is critical in both national and international contexts. The planet and the human family are facing an unprecedented set of challenges, issues and problems including the globalization of the economy, a significant level of deterioration in the quality of the global environment, rapidly changing technologies and the uses of same, and ethical and social issues. How does one respond to these challenges both as a member of a particular nation state as well as a member of the community of nations in a manner that is thoughtful, active, personal and yet with a commitment to the common good? This was the underlying question as we began to explore the concept of citizenship appropriate for life in the early 21st century. The vehicle for doing this was the Citizenship Education Policy Study project (CEPS), an international research network project designed to examine the changing character of citizenship over the next twenty-five years and the subsequent implications of these changes for educational policy across the nine participating nations and beyond
Multidemnsional Citizenship: Education Policy for the Twenty-first Century
As we approach the end of this turbulent century and prepare to meet the challenges of the next, the question of what constitutes education for citizenship in various nations appropriate to the demands and needs of a rapidly changing global community is critical in both national and international contexts. The planet and the human family are facing an unprecedented set of challenges, issues and problems including the globalization of the economy, a significant level of deteriorations in the quality of the global environment, rapidly changing technologies and the uses of the same, and ethical and social issues. How does one respond to these challenges both as a member of a particular nation state as well as a member of the community of nations in a manner that is thoughtful, active, personal and yet with a commitment to the common good? This was the underlying question as we began to explore the concept of citizenship appropriate for life in the early 21st century. The vehicle for doing this was the citizenship Education Policy Study project (CEPS), an international research network project designed to examine the changing character of citizenship over the next twenty-five years and the subsequent implications of these changes for educational policy across the nine participating nations and beyond
Future Directions in the Molecular Breeding of Forage and Turf
Key points Molecular breeding of forage and turf plants and their endosymbionts has entered the post-genomic era with a large amount of structural genomics information and genomic resources available for key forage and turf species and relevant model systems. A primary future challenge is the conversion of this information into useful functional knowledge for the development of molecular breeding technologies and products that address a range of high impact outcome scenarios in forage and turf. High-throughput approaches for spatial and temporal analysis, from genome to phenome, and the respective data integration in a systems biology context will be critical for the establishment of stringent gene-function correlations. Translational genomics will permit results obtained using model systems to have major impact on the understanding of the molecular basis of plant processes and direct application to the molecular breeding of forage and turf plants. These developments will be enhanced through applications of transgenesis and functionally-associated genetic markers in forage and turf molecular breeding building on genomic and post-genomic discoveries in these target species
Isolation and Characterisation of Genes Encoding Ice Recrystallisation Inhibition Proteins (IRIPs) in the Cryophilic Antarctic Hair-Grass (\u3ci\u3eDeschampsia Antarctica\u3c/i\u3e) and the Temperate Perennial Ryegrass (\u3ci\u3eLolium Perenne\u3c/i\u3e)
Antarctic hairgrass (D. antarctica Desv.), the only grass species indigenous to Antarctica, has a well developed tolerance of freezing, strongly induced by cold-acclimation. In response to low temperatures D. antarctica exhibits recrystallisation inhibition (RI) activity, localised to the apoplasm, that prevents further growth of ice crystals following freezing
Hepatic leptospiral infections in dogs without obvious renal involvement.
BACKGROUND: Reports of chronic hepatitis in dogs caused by Leptospira spp. are confined to small case series. Fluorescence in situ hybridization (FISH) allows the identification of spirochetes in liver samples. Consequently, this technique may help elucidate the role of Leptospira spp. in cases of chronic hepatitis. OBJECTIVES: To describe cases of hepatic leptospirosis in dogs diagnosed by FISH and subsequent polymerase chain reaction (PCR) speciation, with the absence of clinically relevant renal involvement. ANIMALS: Ten client-owned dogs. METHODS: Retrospective case series from the University of Cambridge presented between 2013 and 2016 or cases consulted by telephone advice during this time period. Cases were selected based on histopathologically confirmed granulomatous hepatitis and leptospiral organisms identified by FISH and PCR speciation (Leptospira interrogans/kirschneri). RESULTS: All cases had increased liver enzyme activities, and FISH in combination with PCR speciation-confirmed infection with L. interrogans/kirschneri. Four dogs underwent repeat liver biopsy, FISH and PCR speciation 4-15âmonths after initial presentation and doxycycline treatment with 1 dog undergoing repeat sampling at necropsy. Three dogs that underwent repeat biopsy remained positive for L. interrogans/kirschneri infection. Six dogs were alive at the time of manuscript preparation and 4 dogs were euthanized as a result of progressive liver disease. CONCLUSIONS AND CLINICAL IMPORTANCE: The presence of hepatic leptospiral organisms may be associated with chronic granulomatous hepatitis without clinical evidence of renal involvement. Further studies are necessary to elucidate the etiological role of these organisms in the disease
Search for CP violation in decays
A model-independent search for direct CP violation in the Cabibbo suppressed
decay in a sample of approximately 370,000 decays is
carried out. The data were collected by the LHCb experiment in 2010 and
correspond to an integrated luminosity of 35 pb. The normalized Dalitz
plot distributions for and are compared using four different
binning schemes that are sensitive to different manifestations of CP violation.
No evidence for CP asymmetry is found.Comment: 13 pages, 8 figures, submitted to Phys. Rev.
Opposite-side flavour tagging of B mesons at the LHCb experiment
The calibration and performance of the oppositeside
flavour tagging algorithms used for the measurements
of time-dependent asymmetries at the LHCb experiment
are described. The algorithms have been developed using
simulated events and optimized and calibrated with
B
+ âJ/ÏK
+, B0 âJ/ÏK
â0 and B0 âD
ââ
Ό
+
ΜΌ decay
modes with 0.37 fbâ1 of data collected in pp collisions
at
â
s = 7 TeV during the 2011 physics run. The oppositeside
tagging power is determined in the B
+ â J/ÏK
+
channel to be (2.10 ± 0.08 ± 0.24) %, where the first uncertainty
is statistical and the second is systematic
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