221,147 research outputs found

    Assortative Marriage and the Effects of Government Homecare Subsidy Programs on Gender Wage and Participation Inequality

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    We develop a model of the labor market where firms incur an adjustment cost when one of their workers quits, and males and females form households assortatively by skill. We show how this environment can lead to an economy where females earn less and drop out more frequently than equally skilled males in equilibrium, even when males and females constitute ex-ante identical populations. We then examine how different government homecare subsidy schemes may affect such gender inequality in the labor market. We show that the effect of government homecare subsidy schemes on gender inequality depends crucially on the form in which the subsidy is given and to whom it is allocated.Gender Inequality, Discrimination, Subsidized Childcare

    On Take It or Leave It Offers in Common Agency

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    If the agent's preference relation satisfies a strict monotonicity condition in common agency under the asymmetric information, the set of all equilibrium allocations in the menu game where menus of contracts are allowed coincides with the set of all equilibrium allocations in the single contract game where only single contracts are allowed.take it or leave it offers, menus, common agency, robust equilibrium allocations, mixed-strategy equilibrium

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    June 17, 2016, 13:30 EDT (1:30 PM EDT)CDCHAN-00391Determining serotype for Haemophilus influenzae (Hi) and serogroup for Neisseria meningitidis (Nm) is crucial for identifying potential outbreaks and determining appropriate public health responses. Several new commercial multiplex polymerase chain reaction (PCR) assays capable of simultaneously testing a single specimen for an array of pathogens that cause blood infections, meningitis, or encephalitis are available. These assays can rapidly identify Hi and Nm species, but most do not determine serotype or serogroup. Laboratories should continue to perform culture and use validated, specific real-time PCR assays capable of detecting and differentiating all six serotypes (a-f) of Hi and six serogroups (A, B, C, W, X, and Y) of Nm; otherwise, additional steps need to be taken including performing a reflex culture or at a minimum retaining a clinical sample for further testing.FINAL HAN 391 Best Practices for Using PCR to Diagnose Haemophilus influenzae and Neisseria Mening_06 17 16.pdf2016BacteriaBacterial Infection

    Location-aided multi-user beamforming for 60 GHz WPAN systems

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    Monday, December 29, 2003, 15:35 EST (03:35 PM EST)CDCHAN-00176-03-12-29-UPD-NOn December 26, 2003, the Chinese Ministry of Health (MOH) reported a single case of suspected severe acute respiratory syndrome (SA RS) in a 32-year-old man in the southern Chinese province of Guangdong. Two notices describing the Chinese MOH report are available on the Web site of the World Health Organization (WHO) Regional Office for the Western Pacific http://www.wpro.who.int/sars/ (the text of the update posted on December 29 and the initial announcement of December 27 is provided below).According to the Web site, the patient developed a fever and headache on December 16. On December 20, he sought medical assistance and was diagnosed with pneumonia on the basis of his symptoms and chest x-ray changes in the lower right lung. Laboratory testing carried out at three Chinese laboratories has indicated the possibility of infection with SA R S coronavirus (SA RS CoV), but the results are inconclusive. WHO has advised that additional testing of specimens be conducted at laboratories outside of China for international verification of the results. The patient is reported to be in isolation in a Chinese hospital and in stable condition. All relevant human contacts of the patient have been identified and tested and are doing well. Preliminary epidemiologic investigations indicate that, in the 2 weeks prior to the onset of symptoms, the patient had no known contact with high-risk groups, such as health workers or animal handlers. The source of the suspected SA R S coronavirus infection is therefore unclear at this stage.The U.S. Centers for Disease Control and Prevention (CDC) is in close communication with the World Health Organization (WHO) about this case. Additional information will be provided as more is learned about the situation.Public health information and resources for a possible chemical emergency -- Update on suspected SARS case in southern China (29 December 2003) -- Suspected SARS case in southern China (27 December 2003).2003Severe Acute Respiratory Syndrome, 2003VirusSARS Viru

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    September 16, 2006, 12:31 EDT (12:31 PM EDT)CDCHAN-00250-06-09-16-ADV-NA commercial beverage has been confirmed as the cause of a cluster of three botulism cases in Georgia. The three patients had onset of symptoms on Friday, September 8th, after consuming a common meal that included commercially produced carrot juice on Thursday, September 7th. Two bottles of juice were consumed. All three patients drank from bottle #1; whether all three patients drank from bottle #2 is unknown. Botulinum toxin type A was identified in the serum and stool of all three patients by mouse bioassay. Subsequently, botulinum toxin type A was identified from carrot juice remaining in bottle #1 by mouse bioassay. Bottle #2 had been rinsed with water, and the test for toxin was negative. The label on the implicated bottle reads \u201cBolthouse Farms, Bakersfield, California, 100% carrot juice.\u201d The use by date is 09-18-06.The investigation is ongoing. It is unknown whether the contaminated juice was subjected to time or temperature abuse that might have facilitated the growth of Clostridium botulinum spores, which can survive pasteurization. CDC has not been notified of any cases of suspected botulism since this cluster was reported on September 8. We encourage state and local officials to inquire specifically about consumption of carrot juice in the food history of suspect botulism cases.CDC has dispatched a notice of this outbreak to public health officials in all 50 states through the Foodborne Disease Listserve, reminding them about the contact numbers for CDC\u2019s Botulism Clinical Consultation and Antitoxin Release Service. The Georgia Department of Health issued an Epi-X alert, alerts to Georgia clinicians and local health officials, and a press release about this outbreak and the implicated food. We anticipate that the Food and Drug Administration (FDA) will be issuing a press release about this outbreak and advising consumers to properly refrigerate juices and follow other food safety guidelines for illness prevention.Any suspected botulism case reported by a clinician to a state health department should be reported immediately by the state to CDC via the 24/7 CDC Botulism Clinical Consultation and Antitoxin Release Service, by calling the CDC Emergency Operations Center at (770) 488-7100 and asking for the botulism officer on call.2006Foodborne Botulism, 2006BacteriaClostridium botulinum type

    Characterization of Microlensing Planets with Moderately Wide Separations

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    In future high-cadence microlensing surveys, planets can be detected through a new channel of an independent event produced by the planet itself. The two populations of planets to be detected through this channel are wide-separation planets and free-floating planets. Although they appear as similar short time-scale events, the two populations of planets are widely different in nature and thus distinguishing them is important. In this paper, we investigate the lensing properties of events produced by planets with moderately wide separations from host stars. We find that the lensing behavior of these events is well described by the Chang-Refsdal lensing and the shear caused by the primary not only produces a caustic but also makes the magnification contour elongated along the primary-planet axis. The elongated magnification contour implies that the light curves of these planetary events are generally asymmetric and thus the asymmetry can be used to distinguish the events from those produced by free-floating planets. The asymmetry can be noticed from the overall shape of the light curve and thus can hardly be missed unlike the very short-duration central perturbation caused by the caustic. In addition, the asymmetry occurs regardless of the event magnification and thus the bound nature of the planet can be identified for majority of these events. The close approximation of the lensing light curve to that of the Chang-Refsdal lensing implies that the analysis of the light curve yields only the information about the projected separation between the host star and the planet.Comment: 4 pages, 2 figure

    An Additional Application of the Space Interferometry Mission to Gravitational Microlensing Experiments

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    Despite the detection of a large number of gravitational microlensing events, the nature of Galactic dark matter remains very uncertain. This uncertainty is due to two major reasons: the lens parameter degeneracy in the measured Einstein timescale and the blending problem in dense field photometry. Recently, consideration has been given to routine astrometric followup observations of lensing events using the {\it Space Interferometry Mission} (SIM) as a means of breaking the lens parameter degeneracy in microlensing events. In this paper, we show that in addition to breaking the lens parameter degeneracy, SIM observations can also be used to correct for nearly all types of blending. Therefore, by resolving both the problems of the lens parameter degeneracy and blending, SIM observations of gravitational lensing events will significantly better constrain the nature of Galactic dark matter.Comment: 17 pages, including 4 figures and no table, substantially modified from the original version, resubmitted to MNRA
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