A search for an annual variation of a daily sidereal modulation of the frequency difference between colocated 129Xe and 3He Zeeman masers sets a stringent limit on boost-dependent Lorentz and CPT violation involving the neutron, consistent with no effect at the level of 150 nHz. In the framework of the general standard-model extension, the present result provides the first clean test for the fe...

Rising energy consumption in coming decades, combined with a changing energy mix, have the potential to increase the impact of energy sector water use on freshwater biodiversity. We forecast changes in future water use based on various energy scenarios and examine implications for freshwater ecosystems. Annual water withdrawn/manipulated would increase by 18-24%, going from 1,993,000-2,628,000 ...

The school to work transition and the early career path can be di cult for disadvantaged youth. Their labor market is usually studied ignoring the presence of the criminal sector, and yet a large share of them participate in crime. To study these outcomes jointly and explore how they relate, I build and estimate a two-sector search model allowing for a rich set of interactions between the two s...

With the rapid economic development of the Xinjiang Uygur Autonomous Region, the area’s transport sector has witnessed significant growth, which in turn has led to a large increase in carbon dioxide emissions. As such, calculating of the carbon footprint of Xinjiang’s transportation sector and probing the driving factors of carbon dioxide emissions are of great significance to the region’s ener...

BACKGROUND Health sector and programme performance assessments provide a rich source of contextual data directly linked to implementation of programmes and can inform health policy dialogue, planning and resource allocation. In seeking to maximise this opportunity, there are challenges to overcome. A meeting convened by the World Health Organization African Region discussed the strengths, weakn...

Objectives: Better information on the potential costs of HIV/AIDS to the private sector is needed to determine whether companies have a financial incentive to invest in prevention and treatment interventions. Our objective was to estimate the cost of HIV/AIDS to businesses in Africa using company-specific data on employees, costs, and HIV prevalence. Methods: Six formal sector enterprises in So...

OBJECTIVES To estimate the annual numbers of individuals receiving antiretroviral treatment in South Africa up to mid-2008, and the coverage of antiretroviral treatment in adults according to various definitions of need. METHODS Antiretroviral coverage is defined as the number of patients receiving antiretroviral treatment at a point in time, divided by the number needing treatment. Numbers o...

BACKGROUND Information on the potential costs of HIV/AIDS to the private sector is needed if companies are to be given a financial incentive to invest in prevention and treatment interventions. OBJECTIVES To estimate the cost of HIV/AIDS to businesses in southern Africa using company-specific data on employees, costs, and HIV prevalence. METHODS : Six formal sector enterprises in South Afri...

Recently the DAMA/NaI Collaboration reported further indication of a possible modulation eeect in WIMP direct detection. In this note we discuss the relevance of this result for supersymmetric theories where the neutralino is the dark matter candidate. We speciically consider the Minimal Supersym-metric extension of the Standard Model (MSSM) and Supergravity-inspired schemes, with possible devi...