Testing of Multiple Floor Isolated Model Buildings Under Earthquake Conditions

In the face of earthquakes, occupants of buildings are at risk of injury or death, even with the current gold standard i.e., base isolation for earthquake protection in place. Base isolation separates the superstructure of a building from its foundation using isolators. This allows for the building to rock back and forth independently of the foundation. This is capable of protecting the building from structural damage, but damage to nonstructural components of the building is still very common. This can lead to grave injuries or even death to occupants, especially occupants of hospitals. In the event of an earthquake1 equipment throughout a hospital is capable of rolling or sliding fast enough to break bones or to cause brain damage. The goal of our research is to investigate a new method of preventing both structural and nonstructural damage to buildings. This method is referred to as floor isolation. In addition to placing the isolators between the foundation and superstructure, they are also placed between each of the lateral load bearing elements of the building. The goal of this research is to determine if floor isolation decreases floor accelerations in model buildings.https://scholarworks.moreheadstate.edu/celebration_posters_2024/1044/thumbnail.jp

Putative Role of Moringa oleifera in Prophylaxis of Chemotherapy Induced Neuropathic Pain in Mice

Cancer chemotherapy is associated with a plethora of morbidities among which neuropathic pain is a prevalent one. The pathology underpinning chemotherapy induced neuropathic pain can be multifarious, however, dearth of effective medication largely plagues the quality of life of such patients. A good rationale can be found behind focusing on herbal alternatives like extracts of Moringa oleifera for which anti-cancer potential has already been reported. Hence we have carried out a pilot study for evaluating the protective potential of the methanolic extract of the plant against paclitaxel induced neuropathic pain in mice. Our evaluation has been based on standard paradigms focusing on neuromotor, oxidative and histopathological assessments. We have found significant improvisation in groups treated with both pregabalin and extract, the amelioration being largely graded in nature. Hence our research has opened up the doors of a newer horizon of herbal alternatives available for chemotherapy induced neuropathic pain, however further look out into the domain is avidly awaited for. Keywords: NP: Neuropathic Pain, CC: Cancer Chemotherapy, HA: Herbal Alternative

Putative Role of Ethanolic Extract of Vernonia cinerea in the Amelioration of Chemotherapy Induced Neuropathic Pain in Mice

Cancer chemotherapy is associated with a plethora of morbidities among which neuropathic pain is another one. The pathology underpinning chemotherapy induced neuropathic pain can be multifarious, however, dearth of effective medication largely plagues the quality of life of such patients. A good rationale can be found behind narrowing down on herbal alternatives namely methanolic extracts of Vernonia cinerea for which anti-cancer potential has already been reported. Hence we have carried out a pilot study for evaluating the protective potential of the methanolic extract of the plant against paclitaxel induced neuropathic pain in mice. Our evaluation has been based on standard paradigms focusing on neuromotor, oxidative and histopathological assessments and TNF α Assessment. We have found significant improvisation in groups treated with both pregabalin and extract, the amelioration being largely graded in nature. Hence our research has opened up the doors of a newer horizon of herbal alternatives available for chemotherapy induced neuropathic pain, however further look out into the domain is avidly awaited for. Keywords: NP: Neuropathic Pain, CC: Cancer Chemotherapy, HA: Herbal Alternative

Retropharmacology of Gliptins: A Focus on Inflammatory Bowel Disease

As we know inflammatory bowel disease is an emergent plight in developed & developing countries. IBD is an idiopathic ulceroinflammatory condition of the bowel which may or may not have transmural stretch. IBD has two clinic pathological condition Ulcerative colitis & Crohns’s disease. In United State of America there are 1.4 million of people suffering from Ulcerative colitis. IBD has a plethora of comorbid disorders .Gastrointestinal disorder arising from cholelithiasis, cutaneous disease arising from psoriasis & metabolic disorders arising from diabetes mellitus. DPP4 which is instrumental in aggravating diabetes mellitus gets hiked in IBD too , which may have serious implications in the worsening of the latter in diabetes . Hence, in our research we probed for the anticolitic potential of a standard inhibitor of DPP4, Linagliptin to ensure the enzymes suitability as a probable target for IBD. Keywords: IBD: Inflammatory Bowel Disease, UC: Ulcerative colitis, CD: Crohn’s diseas

Search for continuous gravitational wave emission from the Milky Way center in O3 LIGO--Virgo data

We present a directed search for continuous gravitational wave (CW) signals emitted by spinning neutron stars located in the inner parsecs of the Galactic Center (GC). Compelling evidence for the presence of a numerous population of neutron stars has been reported in the literature, turning this region into a very interesting place to look for CWs. In this search, data from the full O3 LIGO--Virgo run in the detector frequency band $[10,2000]\rm~Hz$ have been used. No significant detection was found and 95$\%$ confidence level upper limits on the signal strain amplitude were computed, over the full search band, with the deepest limit of about $7.6\times 10^{-26}$ at $\simeq 142\rm~Hz$. These results are significantly more constraining than those reported in previous searches. We use these limits to put constraints on the fiducial neutron star ellipticity and r-mode amplitude. These limits can be also translated into constraints in the black hole mass -- boson mass plane for a hypothetical population of boson clouds around spinning black holes located in the GC.Comment: 25 pages, 5 figure

Search for subsolar-mass black hole binaries in the second part of Advanced LIGO’s and Advanced Virgo’s third observing run

We describe a search for gravitational waves from compact binaries with at least one component with mass 0.2–1.0 M and mass ratio q ≥ 0.1 in Advanced Laser Interferometer Gravitational-Wave Observatory (LIGO) and Advanced Virgo data collected between 2019 November 1, 15:00 UTC and 2020 March 27, 17:00 UTC. No signals were detected. The most significant candidate has a false alarm rate of 0.2 yr−1. We estimate the sensitivity of our search over the entirety of Advanced LIGO’s and Advanced Virgo’s third observing run, and present the most stringent limits to date on the merger rate of binary black holes with at least one subsolar-mass component. We use the upper limits to constrain two fiducial scenarios that could produce subsolar-mass black holes: primordial black holes (PBH) and a model of dissipative dark matter. The PBH model uses recent prescriptions for the merger rate of PBH binaries that include a rate suppression factor to effectively account for PBH early binary disruptions. If the PBHs are monochromatically distributed, we can exclude a dark matter fraction in PBHs fPBH 0.6 (at 90 per cent confidence) in the probed subsolar-mass range. However, if we allow for broad PBH mass distributions, we are unable to rule out fPBH = 1. For the dissipative model, where the dark matter has chemistry that allows a small fraction to cool and collapse into black holes, we find an upper bound fDBH < 10−5 on the fraction of atomic dark matter collapsed into black holes

Search for Eccentric Black Hole Coalescences during the Third Observing Run of LIGO and Virgo

Despite the growing number of confident binary black hole coalescences observed through gravitational waves so far, the astrophysical origin of these binaries remains uncertain. Orbital eccentricity is one of the clearest tracers of binary formation channels. Identifying binary eccentricity, however, remains challenging due to the limited availability of gravitational waveforms that include effects of eccentricity. Here, we present observational results for a waveform-independent search sensitive to eccentric black hole coalescences, covering the third observing run (O3) of the LIGO and Virgo detectors. We identified no new high-significance candidates beyond those that were already identified with searches focusing on quasi-circular binaries. We determine the sensitivity of our search to high-mass (total mass $M>70$ $M_\odot$) binaries covering eccentricities up to 0.3 at 15 Hz orbital frequency, and use this to compare model predictions to search results. Assuming all detections are indeed quasi-circular, for our fiducial population model, we place an upper limit for the merger rate density of high-mass binaries with eccentricities $0 < e \leq 0.3$ at $0.33$ Gpc$^{-3}$ yr$^{-1}$ at 90\% confidence level.Comment: 24 pages, 5 figure

All-sky search for continuous gravitational waves from isolated neutron stars using Advanced LIGO and Advanced Virgo O3 data

We present results of an all-sky search for continuous gravitational waves which can be produced by spinning neutron stars with an asymmetry around their rotation axis, using data from the third observing run of the Advanced LIGO and Advanced Virgo detectors. Four different analysis methods are used to search in a gravitational-wave frequency band from 10 to 2048 Hz and a first frequency derivative from $-10^{-8}$ to $10^{-9}$ Hz/s. No statistically-significant periodic gravitational-wave signal is observed by any of the four searches. As a result, upper limits on the gravitational-wave strain amplitude $h_0$ are calculated. The best upper limits are obtained in the frequency range of 100 to 200 Hz and they are ${\sim}1.1\times10^{-25}$ at 95\% confidence-level. The minimum upper limit of $1.10\times10^{-25}$ is achieved at a frequency 111.5 Hz. We also place constraints on the rates and abundances of nearby planetary- and asteroid-mass primordial black holes that could give rise to continuous gravitational-wave signals.Comment: 23 main text pages, 17 figure