52 research outputs found
Search of the Orion spur for continuous gravitational waves using a loosely coherent algorithm on data from LIGO interferometers
We report results of a wideband search for periodic gravitational waves from isolated neutron stars within the Orion spur towards both the inner and outer regions of our Galaxy. As gravitational waves interact very weakly with matter, the search is unimpeded by dust and concentrations of stars. One search disk (A) is 6.87° in diameter and centered on 20h10m54.71s+33°33′25.29′′, and the other (B) is 7.45° in diameter and centered on 8h35m20.61s-46°49′25.151′′. We explored the frequency range of 50-1500 Hz and frequency derivative from 0 to -5×10-9 Hz/s. A multistage, loosely coherent search program allowed probing more deeply than before in these two regions, while increasing coherence length with every stage. Rigorous follow-up parameters have winnowed the initial coincidence set to only 70 candidates, to be examined manually. None of those 70 candidates proved to be consistent with an isolated gravitational-wave emitter, and 95% confidence level upper limits were placed on continuous-wave strain amplitudes. Near 169 Hz we achieve our lowest 95% C.L. upper limit on the worst-case linearly polarized strain amplitude h0 of 6.3×10-25, while at the high end of our frequency range we achieve a worst-case upper limit of 3.4×10-24 for all polarizations and sky locations. © 2016 American Physical Society
Search of the Orion spur for continuous gravitational waves using a loosely coherent algorithm on data from LIGO interferometers
We report results of a wideband search for periodic gravitational waves from isolated neutron stars within the Orion spur towards both the inner and outer regions of our Galaxy. As gravitational waves interact very weakly with matter, the search is unimpeded by dust and concentrations of stars. One search disk (A) is 6.87° in diameter and centered on 20[superscript h]10[superscript m]54.71[superscript s] + 33°33[superscript ′]25.29[superscript ′′], and the other (B) is 7.45° in diameter and centered on 8[superscript h]35[superscript m]20.61[superscript s] - 46°49[superscript ′]25.151[superscript ′′]. We explored the frequency range of 50–1500 Hz and frequency derivative from 0 to -5 × 10[superscript -9] Hz/s. A multistage, loosely coherent search program allowed probing more deeply than before in these two regions, while increasing coherence length with every stage. Rigorous follow-up parameters have winnowed the initial coincidence set to only 70 candidates, to be examined manually. None of those 70 candidates proved to be consistent with an isolated gravitational-wave emitter, and 95% confidence level upper limits were placed on continuous-wave strain amplitudes. Near 169 Hz we achieve our lowest 95% C.L. upper limit on the worst-case linearly polarized strain amplitude h[subscript 0] of 6.3 × 10[superscript -25], while at the high end of our frequency range we achieve a worst-case upper limit of 3.4 × 10[superscript -24] for all polarizations and sky locations.National Science Foundation (U.S.)United States. National Aeronautics and Space AdministrationCarnegie TrustDavid & Lucile Packard FoundationAlfred P. Sloan Foundatio
Search of the Orion spur for continuous gravitational waves using a loosely coherent algorithm on data from LIGO interferometers
We report results of a wideband search for periodic gravitational waves from isolated neutron stars within the Orion spur towards both the inner and outer regions of our Galaxy. As gravitational waves interact very weakly with matter, the search is unimpeded by dust and concentrations of stars. One search disk (A) is 6.87° in diameter and centered on 20[superscript h]10[superscript m]54.71[superscript s] + 33°33[superscript ′]25.29[superscript ′′], and the other (B) is 7.45° in diameter and centered on 8[superscript h]35[superscript m]20.61[superscript s] - 46°49[superscript ′]25.151[superscript ′′]. We explored the frequency range of 50–1500 Hz and frequency derivative from 0 to -5 × 10[superscript -9] Hz/s. A multistage, loosely coherent search program allowed probing more deeply than before in these two regions, while increasing coherence length with every stage. Rigorous follow-up parameters have winnowed the initial coincidence set to only 70 candidates, to be examined manually. None of those 70 candidates proved to be consistent with an isolated gravitational-wave emitter, and 95% confidence level upper limits were placed on continuous-wave strain amplitudes. Near 169 Hz we achieve our lowest 95% C.L. upper limit on the worst-case linearly polarized strain amplitude h[subscript 0] of 6.3 × 10[superscript -25], while at the high end of our frequency range we achieve a worst-case upper limit of 3.4 × 10[superscript -24] for all polarizations and sky locations.National Science Foundation (U.S.)United States. National Aeronautics and Space AdministrationCarnegie TrustDavid & Lucile Packard FoundationAlfred P. Sloan Foundatio
Demographics of Aging
Excerpt
The experience of growing older in the 21st century is vastly different from the past. The advancement in technology, medicine, and lower rates of death at birth has allowed for the population to shift in size. The shift is specifically from the baby boomers generation, which refers to the increase in birth rate from 1940’s to the early 1960’s. This generation is aging and in recent years the first baby boomers began reaching retirement age. This segment of the U.S. is the fastest growing, so it is essential to understand the growth of the aging population. This aging group is divided due to its immense diversity
Stereotype Thinking
Excerpt
Stereotypes are widely held fixed thoughts and beliefs adopted by common members of a group, that represent a particular group of individuals or behaviors as a whole. Attitudes people hold reflect in-group beliefs, values, and everyday life choices that are transgressed throughout multiple generations. Stereotypes are intertwined into society, and although many people would like to deny these attitudes, they are implanted on individuals when we are young and occur without conscious awareness. Stereotype thinking is adaptive in nature, which serves the purpose to help people make sense of the world around them, by explaining social events, justifying one’s actions, and assists to distinguish in-groups in a more positive light from out-groups. Stereotype thinking permits people to have the capability of understanding others and simultaneously shapes the way individuals encounter situations
Frequency of Atypical CPT-II Scales are Associated with Specific Profiles of WRAML-2 Impairment
Purpose: Compared WRAML-2 scaled scores between pediatric groups sorted by number of elevated scales on CPT-II
Development and Treatment of Aggression in Individuals with Dementia
Behavioral and psychological symptoms of dementia (BPSD) are a group of non-cognitive symptoms and behaviors that often occur with a diagnosis of dementia. Aggression is the most prevalent and serious of these noncognitive symptoms. However, the development and treatment of aggression in this population are not always clear and the type of dementia does not further help to clarify this problem. There are biological, psychosocial, and environmental factors that attribute to the development of aggression, but identification has proven difficult due to the homogeneity of symptoms. Few studies have compared the type of aggression across the four most common types of dementia: Alzheimer\u27s Disease (AD), vascular dementia (VaD), dementia with Lewy body (DLB) and frontotemporal dementia (FTD). Results indicated that those with AD are more likely to be physically aggressive, but other factors play a role in how and why it is exhibited. Treatment for aggression in dementia has focused on pharmacological and nonpharmacological methods. Atypical antipsychotics are the most frequently prescribed, nevertheless, these medications come with severe risks. The more recent Nonpharmacological treatments have shown promising results shown in conjunction with psychosocial approaches. Aggression in dementia is associated with a variety of factors and can be treated in multiple ways. Future research is needed in terms of identifying the etiology and presentation of aggression in AD, VaD, DLB, and FTD, developing safe pharmacologic treatments, and evidence-based nonpharmacological methods
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