5,199 research outputs found
Hidden Hearing Loss? No Effect of Common Recreational Noise Exposure on Cochlear Nerve Response Amplitude in Humans
No full textThis study tested hypothesized relationships between noise exposure and auditory deficits. Both retrospective assessment of potential associations between noise exposure history and performance on an audiologic test battery and prospective assessment of potential changes in performance after new recreational noise exposure were completed.Methods: 32 participants (13M, 19F) with normal hearing (25-dB HL or better, 0.25–8 kHz) were asked to participate in 3 pre- and post-exposure sessions including: otoscopy, tympanometry, distortion product otoacoustic emissions (DPOAEs) (f2 frequencies 1–8 kHz), pure-tone audiometry (0.25–8 kHz), Words-in-Noise (WIN) test, and electrocochleography (eCochG) measurements at 70, 80, and 90-dB nHL (click and 2–4 kHz tone-bursts). The first session was used to collect baseline data, the second session was collected the day after a loud recreational event, and the third session was collected 1-week later. Of the 32 participants, 26 completed all 3 sessions.Results: The retrospective analysis did not reveal statistically significant relationships between noise exposure history and any auditory deficits. The day after new exposure, there was a statistically significant correlation between noise “dose” and WIN performance overall, and within the 4-dB signal-to-babble ratio. In contrast, there were no statistically significant correlations between noise dose and changes in threshold, DPOAE amplitude, or AP amplitude the day after new noise exposure. Additional analyses revealed a statistically significant relationship between TTS and DPOAE amplitude at 6 kHz, with temporarily decreased DPOAE amplitude observed with increasing TTS.Conclusions: There was no evidence of auditory deficits as a function of previous noise exposure history, and no permanent changes in audiometric, electrophysiologic, or functional measures after new recreational noise exposure. There were very few participants with TTS the day after exposure - a test time selected to be consistent with previous animal studies. The largest observed TTS was approximately 20-dB. The observed pattern of small TTS suggests little risk of synaptopathy from common recreational noise exposure, and that we should not expect to observe changes in evoked potentials for this reason. No such changes were observed in this study. These data do not support suggestions that common, recreational noise exposure is likely to result in “hidden hearing loss”
Dredging Processes I: The Cutting of Sand, Clay & Rock - Theory
No full textThis book gives an overview of cutting theories. It starts with a generic model, which is valid for all types of soil (sand, clay and rock) after which the specifics of dry sand, water saturated sand, clay, rock and hyperbaric rock are covered. For each soil type small blade angles and large blade angles, resulting in a wedge in front of the blade, are discussed. The failure mechanism of sand, dry and water saturated, is the so called Shear Type. The failure mechanism of clay is the so called Flow Type, but under certain circumstances also the Curling Type and the Tear Type are possible. Rock will usually fail in a brittle way. This can be brittle tensile failure, the Tear Type, for small blade angles, but it can also be brittle shear failure, which is of the Shear Type of failure mechanism for larger blade angles. Under hyperbaric conditions rock may also fail in a more ductile way according to the Flow Type of failure mechanism. For each case considered, the equations/model for the cutting forces, power and specific energy are given. The models are verified with laboratory research, mainly at the Delft University of Technology, but also with data from literature.Marine & Transport TechnologyMechanical, Maritime and Materials Engineerin
Work among Japanese in the Salt River Valley of Arizona
No full textDocument written by S.A. Stewart Resident Missionary, East Kyushu Distict, Japan Methodist Church. Stewart discusses the events at the church and the free and restricted zones for Japanese Americans living in Glendale and Phoenix, Arizona.The Bishop James Chamberlain Baker Collection includes letters, documents, and articles about Japanese Americans during World War II. Subjects in the collection include Japanese Americans mass removal, Pearl Harbor and the aftermath, religion, and support from the non-Japanese American community. The collection was digitized and made accessible online by CSUDH Gerth Archives and Special Collections
TP S.A.) (Umowa spoleczna - narzedzie transformacji czy recepta na kryzys? (TP S.A.)
No full textThe author presents the path to the signing of a Social Contract for the years 2009-2011 by all eighteen trade unions active at 'Telekomunikacja Polska S.A. The Contract defines the most important elements of employment policy and worker development, including a plan for the restructuring of the company and voluntary resignation for compensation on the part of the employe
Multi-proxy reconstruction of surface water pCO2 in the northern Arabian Sea since 29ka
No full textWe report here the results of a multi-proxy study to reconstruct surface water pCO2 concentrations in the northern Arabian Sea. Our results show that [delta]11B and Mg/Ca measurements of the planktonic foraminifer Globigerinoides sacculifer yield consistent pCO2 values with those reconstructed from the [delta]13C of alkenones when used in conjunction with foraminifera [delta]13C and Cd/Ca values. They reveal that this area of the oceans has been a constant source of CO2 to the atmosphere during the interval 5-29 ka, and that the intensity of this source was greatest between 11 and 17 ka, when atmospheric CO2 levels were rising rapidly. We interpret our data as reflecting variation in the strength of the Asian Summer Monsoon (ASM), thus indicating that the strength of the ASM varied in phase with summer insolation over the Tibetan plateau between 5 and 29 ka. In contrast to a previous study (Clemens and Prell, 2003), we observe no significant lag between the rise in insolation and the response of the ASM. Rather, our data support a recent study by Rohling et al. (2009) that northern hemisphere climatic forcing factors play a greater role in controlling the intensity of the ASM during times of intense monsoon activity, and that the southern hemisphere forcing is more important during times of weak monsoons
The mining rescure in SRK S.A. – economics and busines
No full textArtykuł podejmuje problematykę ratownictwa górniczego w Polsce w kontekście likwidowanych zakładów górniczych. Na podstawie wybranych przepisów górniczych autor wyjaśnia zasady funkcjonowania ratownictwa przedsiębiorcy i podmiotów zawodowo trudnią-cych się ratownictwem górniczym. Opisuje organizację ratownictwa górniczego w Polsce oraz kompetencje poszczególnych podmiotów w tym zakresie. Przedstawia także etapy tworzenia ratownictwa górniczego w spółce SRK S.A. oraz elementy analizy ekonomicznej związanej z kosztami utrzymania Stacji Ratownictwa Górniczego SRK S.A. Artykuł porusza również problem społeczny związany z próbą przejęcia przez Centralną Stację Ratownictwa Górniczego S.A. w Bytomiu pełni zabezpieczenia w zakresie ratownictwa górniczego 12 oddziałów SRK S.A. w których nadal prowadzone są roboty podziemne. W podsumowaniu autor opisuje paradoksy tego przedsięwzięcia.The article discusses aspect of the mining rescue in Poland in the context of liquidated mining plants. On the basis of selected mining regulations, the principles of the rescue operation of an operator as well as of professional mining rescue workers has been explained. This paper describes the organization of the mining rescue in Poland and the competences of individual entities included in this entity. Described have been also the stages of organizing the mining rescue in SRK S.A. and elements of economic analysis of maintenance costs in SRK S.A. Rescue Station. The article also undertakes the social problem related to the attempted takeover by the Central Mining Rescue Station S.A. in Bytom full security of twelve departments of the mining rescue SRK S.A. where underground works are still being carried out. As a summary the author faces with the paradoxes of this situation
Equity research - Kering S.A.
No full textMestrado em FinançasEquity research a Kering S.A com o intuito de determinar um determinado price target para o valores das acções da Kering S.A a 31 de Dezembro de 2019.
No processo para determinar o price target foram utilizados 3 modelos de avaliação distintos, Discounted Cash Flow Model, Dividend Discount Model e Multiples Valuation dos quais se obteve um price target de 576.44 EUR representando um upside de 8.9% face ao preço base utilizado para esta analise de 520.10 EUR de 1 de Julho de 2019.This project is mainly comprised on an Equity Research of Kering S.A. to determine a certain price target of Kering's stock by 31st December 2019. This assessment is mostly assembled by a set of assumptions, made the author of these document, for the time period of 2019F-2023F which reflect the historical performance of the company and the current market settings that may impact such target price.
In regards of the computations around the price target definition, three valuation models were covered, the Discounted Cash Flow Model, which discounted all future cash flows generated in the period under analysis and through perpetuity, totaling a price of 580.12 EUR / share, and the Dividend Discount Model and Multiples Valuation Model which totaled 567.00 EUR and 582.22 EUR respectively. Based on these there valuation models, by assigning an equal weight to each one of them, a price target of 576.44 EUR was reached translating into a 8.9% upside potential regarding the reference date of analysis of 525.10 EUR in 1st July 2019.
Once, computed the price target, the final recommendation for these equity research document was defined based on the risk criteria that better described Kering S.A market environment settings, providing this way a solid statement for Kering's share price within the period under analysisinfo:eu-repo/semantics/publishedVersio
Equity research - Kering S.A.
No full textMestrado em FinançasEquity research a Kering S.A com o intuito de determinar um determinado price target para o valores das acções da Kering S.A a 31 de Dezembro de 2019.
No processo para determinar o price target foram utilizados 3 modelos de avaliação distintos, Discounted Cash Flow Model, Dividend Discount Model e Multiples Valuation dos quais se obteve um price target de 576.44 EUR representando um upside de 8.9% face ao preço base utilizado para esta analise de 520.10 EUR de 1 de Julho de 2019.This project is mainly comprised on an Equity Research of Kering S.A. to determine a certain price target of Kering's stock by 31st December 2019. This assessment is mostly assembled by a set of assumptions, made the author of these document, for the time period of 2019F-2023F which reflect the historical performance of the company and the current market settings that may impact such target price.
In regards of the computations around the price target definition, three valuation models were covered, the Discounted Cash Flow Model, which discounted all future cash flows generated in the period under analysis and through perpetuity, totaling a price of 580.12 EUR / share, and the Dividend Discount Model and Multiples Valuation Model which totaled 567.00 EUR and 582.22 EUR respectively. Based on these there valuation models, by assigning an equal weight to each one of them, a price target of 576.44 EUR was reached translating into a 8.9% upside potential regarding the reference date of analysis of 525.10 EUR in 1st July 2019.
Once, computed the price target, the final recommendation for these equity research document was defined based on the risk criteria that better described Kering S.A market environment settings, providing this way a solid statement for Kering's share price within the period under analysisinfo:eu-repo/semantics/publishedVersio
Geographic profiling in Nazi Berlin: fact and fiction
No full textGeographic profiling uses the locations of connected crime sites to make inferences about the probable location of the offender’s ‘anchor point’ (usually a home, but sometimes a workplace). We show how the basic ideas of the method were used in a Gestapo investigation that formed the basis of a classic German novel about domestic resistance to the Nazis during the Second World War. We use modern techniques to re-analyse this case, and show that these successfully locate the Berlin home address of Otto and Elise Hampel, who had distributed hundreds of anti-Nazi postcards, after analysing just 34 of the 214 incidents that took place before their arrest. Our study provides the first empirical evidence to support the suggestion that analysis of minor terrorism-related acts such as graffiti and theft could be used to help locate terrorist bases before more serious incidents occur
Equity research - Kering S.A.
No full textMestrado em FinançasEquity research a Kering S.A com o intuito de determinar um determinado price target para o valores das acções da Kering S.A a 31 de Dezembro de 2019.
No processo para determinar o price target foram utilizados 3 modelos de avaliação distintos, Discounted Cash Flow Model, Dividend Discount Model e Multiples Valuation dos quais se obteve um price target de 576.44 EUR representando um upside de 8.9% face ao preço base utilizado para esta analise de 520.10 EUR de 1 de Julho de 2019.This project is mainly comprised on an Equity Research of Kering S.A. to determine a certain price target of Kering's stock by 31st December 2019. This assessment is mostly assembled by a set of assumptions, made the author of these document, for the time period of 2019F-2023F which reflect the historical performance of the company and the current market settings that may impact such target price.
In regards of the computations around the price target definition, three valuation models were covered, the Discounted Cash Flow Model, which discounted all future cash flows generated in the period under analysis and through perpetuity, totaling a price of 580.12 EUR / share, and the Dividend Discount Model and Multiples Valuation Model which totaled 567.00 EUR and 582.22 EUR respectively. Based on these there valuation models, by assigning an equal weight to each one of them, a price target of 576.44 EUR was reached translating into a 8.9% upside potential regarding the reference date of analysis of 525.10 EUR in 1st July 2019.
Once, computed the price target, the final recommendation for these equity research document was defined based on the risk criteria that better described Kering S.A market environment settings, providing this way a solid statement for Kering's share price within the period under analysisinfo:eu-repo/semantics/publishedVersio
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