Telescoping in dating naturally occurring events
Montuori 1 , P. Di Matteo 2 , M. Lehnert 2 , F. Combes 3 and B. Semelin 3. Aldo Moro 2, Rome, Italy e-mail: montuorm roma1. Received: 22 February Accepted: 18 May Strong inflows of gas from the outer disk to the inner kiloparsecs are induced during the interaction of disk galaxies.
An autapomorphy—a state unique to one terminal taxon or Operational Taxonomic Unit OTU; Mishler, —contributes one step to any possible topology. Therefore, autapomorphies are routinely excluded from further analysis in cladistics programs e. Tip-dating analyses might be expected to be particularly sensitive to autapomorphies: all autapomorphies occur on terminal branches by definition, so their exclusion will shorten the morphological branchlengths of terminal branches and thus presumably their time branchlengths , and perhaps increase estimated branch-wise rate variation.
Datasets appropriate for doing so are rare because they need to systematically collect all autapomorphies, as well as dates for the OTUs.
Background: The main aim of this study was to analyse the psychometric properties of the Spanish version of the Acceptance of Dating Violence (ADV) scale.
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Armstrong, L. Potential determinants of heavier internet usage. International Journal of Human-Computer Studies, 53,
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Research among adults has shown that younger age is a consistent risk factor for experiencing and perpetrating intimate partner violence. However, no representative epidemiologic studies of lifetime prevalence of dating violence among adolescents have been conducted. After controlling for the effects of potentially confounding demographics and risk behaviors, data from both surveys indicate that physical and sexual dating violence against adolescent girls is associated with increased risk of substance use eg, cocaine use for , odds ratio [OR], 4.
Intimate partner violence IPV against women is a major public health concern. Estimates from a recent large-scale, nationally representative survey 1 indicate that more than 1. Research among adults has shown that younger age is a consistent risk factor for experiencing and perpetrating IPV. Most IPV is directed at women. The rate of violence against females by intimate partners is 3 to 6 times that of IPV against males.
For these reasons, research and prevention efforts are appropriately focused on violence against female partners. Recent events involving fatal violence perpetrated by adolescents have focused additional attention on all forms of youth violence, 11 and there are increasing calls for epidemiologic study of IPV against adolescent girls, 12 in particular. A broad range of physical and mental health concerns have been shown to be associated with IPV among women, 13 and similar morbidity risks are considered likely for adolescents.
Public health surveillance surveys represent an important opportunity to collect representative data on the extent of behaviors or experiences that threaten the health of young people and to examine associations among these risk factors. Because lack of such information is a major barrier to improvement of identification, treatment, and efforts to prevent adolescent dating violence, inclusion of queries related to dating violence in such surveys has been recommended.
The present analyses 1 provide estimates of the lifetime prevalence of physical and sexual dating violence, 2 identify demographic characteristics of those most at risk, and 3 assess dating violence history as a predictor of behaviors related to major areas of adolescent health risk substance use, unhealthy weight control, sexual risk behavior, pregnancy, and suicidality.
An isochron method for cosmogenic-nuclide dating of buried soils and sediments
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The practice of molecular dating is an essential tool for hypothesis testing in evolutionary biology. Vagaries of fossilization and taphonomic bias.
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Dating Preferences and Meeting Opportunities in Mate Choice Decisions
GSA Bulletin ; 79 3 : — It is deduced that the revolutionary phase of the orogeny extended from early Triassic to early Cretaceous; folding of the geosynclinal sediments and accompanying recrystallization of the limestones terminated in late Jurassic, but granitic activity extended to early Cretaceous. A post-orogenic phase of granitic intrusion, accompanied by secondary calcite veining of the limestones, occurred in early Tertiary and appears to be confined to a narrow zone along the western margins of the Main Range batholith.
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via Online Dating (September 14, ). Available at SSRN: abstract= or
Dating applications apps on smartphones have become increasingly popular. The aim of this study was to explore the association between the use of dating apps and risky sexual behaviours. Data were collected in four university campuses in Hong Kong. Subjects completed a structured questionnaire asking about the use of dating apps, sexual behaviours, and sociodemographics. Multiple linear and logistics regressions were used to explore factors associated with sexual risk behaviours.
Six hundred sixty-six subjects were included in the data analysis. The results of a multiple logistic regression analysis found that users of dating apps adjust odds ratio: 0. Users of dating apps adjust odds ratio: 1. The present study found a robust association between using dating apps and sexual risk behaviours, suggesting that app users had greater sexual risks.
Interventions that can target app users so that they can stay safe when seeking sexual partners through dating apps should be developed. This is an open access article distributed under the terms of the Creative Commons Attribution License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
NOTUNG: A Program for Dating Gene Duplications and Optimizing Gene Family Trees
Quartz is the datable component in mortar. Although its luminescence properties are very well studied, the problem of mortar dating arises from a low level of optical bleaching. In order to reduce the time consuming efforts for dating lime mortar in monuments by optically stimulated luminescence, we investigated the most suitable methods of dose and dose rate determination, and we explored tests which are suitable to predict the datability of a given material.
Reverting to the large number of publications on sedimentary partially bleached quartz we found linear modulation techniques especially useful, equally we also recommend the determination of the level of optical depletion before starting analyses. Single grain analysis is regarded as an ultimate but infallible tool to date very poorly bleached quartz from mortar.
The aim of this study was to explore the association between the use of dating apps and risky sexual behaviours. Data were collected in four.
Telescoping effects in date estimation were examined in four diary studies. The data show that substantial telescoping can begin as soon as 8 weeks after an event occurs. These studies also found a slight, but typically nonreliable, tendency to make time expansion errors for recent events. Analyses of these data showed that telescoping cannot be attributed to the clarity-of-memory hypothesis proposed by Bradburn, Rips, and Shevell or to an artifact produced by guessing.
An implicit strategy involving estimation of the number of intervening events was proposed to account for the results. Download to read the full article text. Block, R. Memory and the experience of duration in retrospect. Remembered duration: Effects of event and sequence complexity. Bradburn, N.
Canadian Journal of Fisheries and Aquatic Sciences
In the last years the mortar dating through Optically Stimulated Luminescence OSL techniques has become a viable support for chronological estimations date of construction or restoration episodes of historical buildings. However, the dating of mortar has still open issues mainly regarding the assessment of the bleaching degree of quartz, the analysis of the OSL processes for this type of samples and the need to do appropriate tests for the most correct evaluation of the equivalent dose.
This paper discusses the results obtained by OSL dating blue diode stimulation on the polymineral fine grain phase, enriched in quartz, extracted from lime mortar samples collected from different sites. Thermal transfer effects, through the behaviour of Equivalent Dose ED and recovery tests, degree and time of bleaching were studied. For each mortar sample the adjacent brick was collected; in some cases, sampling of the bricks bracketing a mortar layer was a possibility, thus obtaining a direct comparison with the standard thermoluminescence TL dating on the bricks.
User Username Password Remember me. Tweets by geoacta Tuits de geoacta Segueix geoacta. Font Size. Journal Help. Abstract The Triassic successions of western Argentina commonly show thin pyroclastic levels intercalated within thick fluvial and lacustrine terrigenous deposits. It is composed of alternating cycles of gravelly- sandy- and muddy-dominated intervals, in which several laterally-continuous tuff horizons occur.
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The TS Turin Shroud is a linen cloth which enveloped the dead body of a tortured and crucified man that is believed by many to be the burial cloth of Jesus Christ. The linen fabric has been radiocarbon dated in to the Middle Age but a recent robust statistical analysis shows that the resulting age appears flawed by a systematic effect. The present paper discusses the results obtained using innovative dating methods based on the analysis of mechanical parameters breaking strength, Young modulus and loss factor and of opto-chemical ones FT-IR and Raman.
To obtain mechanical results it was necessary to build a particular cycling-loads machine able to measure the mechanical parameters of single flax fibers mm long. While this date is both compatible with the time in which Jesus Christ lived in Palestine and with very recent results based on numismatic dating, it is not compatible with the radiocarbon measurements that should be repeated after the necessary clarifications relative to the possible environmental factors that could have biased the results.
Data correspond to usage on the plateform after
The dilution peak, metallicity evolution, and dating of galaxy interactions and mergers. M. Montuori1, P. Di Matteo2, M. D. Lehnert2, F. Combes3 and B. Semelin3.
Dating apps on smartphones have brought speed dating on the Internet to a new level. This exploratory investigation sought to determine what kinds of people use these apps, what their motivations are, and what precautions they take before meeting someone. One hundred and seventy-three non-users and 57 current users of dating apps were surveyed. The data suggest that the strongest motive for using dating apps is not for dating or sex, but for entertainment. On the other hand, the more frequent users of these apps are people whose personalities are predisposed towards varied sexual partners.
These different motives may represent a disconnect between those who wish to kill time and those who are seeking sexual partners. Authors retain copyright to their work published in First Monday. Please see the footer of each article for details. Skip to main content Skip to main navigation menu Skip to site footer. Keywords: micro-dating, online dating, romantic relationships, sensation-seeking, sociosexual orientation, sex. Abstract Dating apps on smartphones have brought speed dating on the Internet to a new level.
Author Biographies Christopher J.