Dissertations / Theses: 'Dating'

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Hare, Vincent John. "Rehydroxylation dating." Thesis, University of Oxford, 2016. https://ora.ox.ac.uk/objects/uuid:3bf6753e-77b7-4a69-8cd6-e6a4c319fa09.

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This thesis is concerned with a better understanding of issues which currently limit the precision, accuracy and robustness of rehydroxylation (RHX) dating. MC simulations and analytical expressions show that age uncertainties of previous studies are underes- timates. The ratio of sample mass to balance resolution should be of the order of 10^-6 or less for measurement precision under 1%. A combined measurement uncertainty of ~ 4 % should be possible, given well-designed experiments, appropriate samples, and a t^1/N model with N = 4. Highly-fired materials have an age limit of ~ Ma, but low α and y_max preclude dating materials such as porcelain. There is little correlation between non-stabilisation of m₂ and factors such as porosity, specific heat capacity or density. The strongest effect is that of sample dimension (thickness), which is found to cause long times to stage II mass gain following 105 °C heating - roughly proportional to the thickness squared, suggesting some long-lived contribution from Fickian diffusion. Another strong effect is acceleration of the rehydroxylation reaction upon cooling from high temperatures, which is also dependent on sample size. This causes long times to stage II, and inaccuracies in fitting α_m. Sample dimensions therefore pose a fundamental challenge for rehydroxylation dating by gravimetric analysis. Evidence is presented for a long-lived weakly-bound (T1) water regime in certain materials. A new apparatus for high-precision mass measurements of multiple samples under controlled conditions was used to investigate differences between meta-clay minerals, and to evaluate the efficiency of different pretreatments on fired clays of known age (1.1a). RHX age determinations, corrected for ELT, range from 30.1 ± 0.3 a to 1.51 ± 0.04, and some clear differences ap- pear for different meta-clay minerals. FTIR spectra indicate that treatment with 0.5M HCl at 70 °C for 30 minutes causes rehydroxylation of clay minerals, but 0.1M HCl seems suitable. Organic removal by chloroform/methanol solvent extraction or H₂O₂ treatment avoids alteration of structural OH, but is not as effective as supercritical fluid extraction (SFE) in the case of lipids. The RHX age determination of a sample of Werra pottery (MAN07) was 169 ± 30 a, with an activation energy of 82.7 kJ mol^-1 and at an ELT of 10.5 °C, which is not in agreement with the result obtained in previous studies. The relationship between the t^1/4 model and diffusion mechanisms is briefly discussed, and a discussion of the issues is entertained. Goodness-of-fit statistics are highest for a model with long-lived T1 and T2 regimes, but this mass gain behaviour is identical to that expected from an accelerated t^1/4 process and slow cooling. It is therefore not possible to exclude the possibility of a t^1/4 regime.

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Scally, Kenneth. "Dating kerosene releases." Thesis, University of Nottingham, 2013. http://eprints.nottingham.ac.uk/27638/.

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Kerosene is a common fuel for domestic heating systems. Dating petroleum spill contamination is of considerable International Interest. An accurate determination of the age of spills is needed to inform the process of assigning legal and financial responsibility. The pollution of sons and groundwater by kerosene spills is of major concern to householders and their insurers as well as regulators. Released kerosene may persist in the soil as a source of hazardous hydrocarbons for a long time, but not as long as diesel, because of the low solubility and the moderate to low volatility of kerosene constituents. Generally, hydrocarbons in kerosene biodegrade significantly under aerobic conditions provided that sufficient amounts of essential nutrients are present. Extractable petroleum hydrocarbon (EPH) analyses by Jones Environmental laboratories Ltd of soil polluted following kerosene spills were used to develop an empirical model which considered biotic and abiotic factors found at spill sites to determine the time since the kerosene spill.

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Schladale, Joann. "Adolescent dating violence." Thesis, Virginia Polytechnic Institute and State University, 1987. http://hdl.handle.net/10919/76339.

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Dating relationships were examined for a sample of 156 female and 124 male college freshman. Comparison of self esteem, mastery, coping strategies, and negotiation styles were made between those who had experienced dating violence and those who had not. A theoretical framework based on the resource aspect of exchange theory is used to frame the study. Factor analysis was used to identify coping strategies and negotiation styles. Discriminate analysis was used to determine the discriminating power of the independent variables. Findings indicate that the negotiation style of Negative Affect and the coping strategies of Confrontation and Social Support discriminate between violent and nonviolent group membership.
Master of Science

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He, Liang. "Mobile dating in the digital era: selfpresentation on gay dating app blued." Doctoral thesis, Universitat Autònoma de Barcelona, 2021. http://hdl.handle.net/10803/672508.

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Aquest estudi examina l’autopresentació dels homes gais xinesos sobre l’aplicació de cites Blued mitjançant un enfocament de mètodes mixtos. Es van realitzar dos estudis. En l’estudi 1, es van recopilar i analitzar 930 perfils per obtenir una comprensió quantitativa sobre com els homes gais xinesos utilitzen elements fotogràfics i textuals per presentar-se a Blued. Per investigar encara més com i per què els homes gais xinesos es presenten visualment i textualment de determinades maneres, 30 usuaris de Blued van ser entrevistats a l’estudi 2. Segons les conclusions de l’estudi 1, només aproximadament un terç dels perfils d’homes gais xinesos contenien, com a mínim, una foto de la cara que es pogués reconèixer als seus perfils de color blau. Es van provar les correlacions entre dades demogràfiques i divulgació facial. Els homes gais més grans tenen menys probabilitats de divulgar una foto de la cara a Blued que els gais més joves. Es van comptar les freqüències i el percentatge de masculinitat, el llenguatge corporal i esportiu i es van provar les correlacions entre la demografia i els diferents tipus d’ús del llenguatge. El percentatge de masculinitat, llenguatge corporal i esportiu utilitzat en perfils de Blued és del 37,6%, 20,9% i 6,2% respectivament. Es va trobar que l’edat, l’alçada i el pes estaven correlacionats amb diferents tipus d’ús del llenguatge. Les persones que els agrada utilitzar el llenguatge masculí són més propenses a utilitzar el llenguatge corporal i esportiu. Els resultats de l’Estudi 2 mostren que els homes gais xinesos tenen cinc motius principals per construir un perfil Blued: buscar relacions sexuals casuals, buscar relacions romàntiques / a llarg termini, buscar amics, entreteniment i buscar comoditat fisològica. Els homes gais xinesos utilitzen una sèrie d’estratègies per construir els seus perfils: prestar atenció a les petites indicacions, equilibrar l’autenticitat i l’engany, establir la credibilitat i evitar les limitacions tecnològiques. Els homosexuals xinesos tenen diferents motius per no revelar una foto de la cara als seus perfils de Blued. La preocupació per exposar la identitat gai és el motiu més freqüentment informat. Altres motius inclouen: la característica de disseny de la plataforma, la ubicació de l’usuari, els objectius relacionals, la manca de confiança en l’aspecte personal i les preocupacions pel mal ús de les fotos. L’avaluació de la impressió dels perfils d’altres també ha impactat en la construcció del perfil Blued dels homes gais xinesos. A l’hora d’avaluar els perfils construïts per altres homes gais, els homes gais xinesos utilitzen tres estratègies: prestar atenció a les petites indicacions, filtrar i creure en un engany desenfrenat. Aquest estudi omple el buit de la investigació sobre l’autopresentació dels homes gais xinesos en aplicacions de cites per a mòbils i indica que l’autopresentació és sensible als factors culturals i institucionals.
Este estudio examina la autopresentación de los hombres homosexuales chinos en la aplicación de citas Blued utilizando un enfoque de métodos mixtos. Se realizaron dos estudios. En el estudio 1, se recopilaron y analizaron 930 perfiles para obtener una comprensión cuantitativa de cómo los hombres homosexuales chinos utilizan elementos tanto fotográficos como textuales para presentarse en Blued. Para investigar más a fondo cómo y por qué los hombres homosexuales chinos se presentan visual y textualmente de ciertas maneras, se entrevistó a 30 usuarios de Blued en el estudio 2. Según los hallazgos del estudio 1, solo alrededor de un tercio de los perfiles de hombres homosexuales chinos contenían al menos una foto de rostro reconocible en sus perfiles de Blued. Se probaron las correlaciones entre la demografía y la revelación facial. Los hombres homosexuales mayores son menos propensos a revelar una foto de la cara en Blued que los homosexuales más jóvenes. Se contaron las frecuencias y el porcentaje de masculinidad, el lenguaje corporal y deportivo, y se probaron las correlaciones entre la demografía y los diferentes tipos de uso del lenguaje. El porcentaje de masculinidad, lenguaje corporal y deportivo utilizado en los perfiles Blued es del 37,6%, 20,9% y 6,2% respectivamente. Se encontró que la edad, la altura y el peso estaban correlacionados con diferentes tipos de uso del lenguaje. Las personas a las que les gusta usar el lenguaje de masculinidad son más propensas a usar el lenguaje corporal y deportivo. Los resultados del Estudio 2 muestran que los hombres homosexuales chinos tienen cinco motivos principales para construir un perfil Blued: buscar sexo casual, buscar relaciones románticas / a largo plazo, buscar amigos, entretenimiento y buscar comodidad psicológica. Los hombres gay chinos utilizan una serie de estrategias para construir sus perfiles: prestar atención a las pequeñas señales, equilibrar la autenticidad y el engaño, establecer credibilidad y eludir las limitaciones tecnológicas. Los hombres homosexuales chinos tienen diferentes razones para no revelar una foto de la cara en sus perfiles de Blued. Preocuparse por exponer la identidad gay es la razón más frecuentemente denunciada. Otras razones incluyen: la característica de diseño de la plataforma, la ubicación del usuario, los objetivos relacionales, la falta de confianza en la apariencia personal y la preocupación por el mal uso de las fotos. La evaluación de la impresión de los perfiles de otros también ha afectado la construcción del perfil Blued de los hombres homosexuales chinos. Al evaluar los perfiles construidos por otros hombres homosexuales, los hombres homosexuales chinos utilizan tres estrategias: prestar atención a las pequeñas señales, filtrar y creer en el engaño desenfrenado. Este estudio llena el vacío en la investigación sobre la autopresentación de los hombres homosexuales chinos en aplicaciones de citas móviles e indica que la autopresentación es sensible a factores culturales e institucionales.
This study examines Chinese gay men’s self-presentation on dating app Blued by utilizing a mixed-methods approach. Two studies were conducted. In study 1, 930 profiles were collected and analyzed to gain a quantitative understanding about how Chinese gay men utilize both photographic and textual elements to present themselves on Blued. To further investigate how and why Chinese gay men present themselves visually and textually in certain ways, 30 Blued users were interviewed in study 2. According to the findings of study 1, only about a third of Chinese gay men’s profiles contained at least a recognizable face photo in their Blued profiles. Correlations between demographics and face disclosure were test. Older gay men are less likely to disclose a face photo on Blued than younger gay men. Frequencies and percentage of masculinity, body and sport language were counted, and correlations between demographics and different types of language use were test. The percentage of masculinity, body and sport language used in Blued profiles are 37.6%, 20.9% and 6.2% respectively. Age, height and weight was found to be correlated with different types of language use. People who like using masculinity language are more likely to use body and sport language. The results of Study 2 shows that Chinese gay men have five major motives of constructing a Blued profile: looking for casual sex, looking for romantic/long term relationships, looking for friends, entertainment and seeking phycological comfort. Chinese gay men use a series of strategies to construct their profiles: paying attention to small cues, balancing authenticity and deception, establishing credibility, and bypassing technological constraints. Chinese gay men have different reasons for not disclosing a face photo in their Blued profiles. Worrying about exposing gay identity is the most frequently reported reason. Other reasons include: the design feature of the platform, location of the user, relational goals, lack of confidence in personal appearance, and concerns of photos being misused. Impression evaluation of other’s profiles have also impacted Chinese gay men’s Blued profile construction. When evaluating the profiles constructed by other gay men, Chinese gay men use three strategies: paying attention to small cues, filtering, and believing in rampant deception. This study fills the gap in the research regarding Chinese gay men’s self-presentation on mobile dating apps and indicates that self-presentation is sensitive to cultural and institutional factors.
Universitat Autònoma de Barcelona. Programa de Doctorat en Comunicació i Periodisme

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Misner, Scottie, and Carol Curtis. "Package Dating of Goods." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2008. http://hdl.handle.net/10150/146437.

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1p.
Revised
The dates on packages of food are guidelines to help the consumer use food at its peak quality and before spoilage occurs. This article teaches readers how to interpret the dating information on food packages.

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Outram, Zoe, and Catherine M. Batt. "Dating at Old Scatness." Shetland Heritage Publications, 2010. http://hdl.handle.net/10454/4670.

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Passarelli, Rebecca E. "Teen dating violence in a connected world: Understanding and exploring cyber dating abuse." Miami University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=miami1466512410.

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Turner, Cami Jane. "Using peers to influence dating relationships an evaluation of a dating violence prevention program /." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file 0.27 Mb., 90 p, 2006. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:1435865.

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Wilson, Elizabeth, and Ginette Blackhart. "Does Engagement in Online Dating Lead to Greater Dating Success for Rejection Sensitive Individuals?" Digital Commons @ East Tennessee State University, 2019. https://dc.etsu.edu/asrf/2019/schedule/86.

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Individuals high in rejection sensitivity have a lower rates of dating success and a lower probability of being in a romantic relationship, but could engaging in online dating improve the likelihood? The goal of this research is to determine whether individuals higher in rejection sensitivity indicate having more success in meeting potential romantic partners online when compared to meeting potential partners conventionally. It is hypothesized that individuals higher in rejection sensitivity will be more successful on first dates when initiated though online dating sites / apps rather than through more conventional ways of meeting potential romantic partners. An online survey was created asking participants to complete the Rejection Sensitivity Questionnaire to evaluate the level of anxiety experienced when faced with potential rejection, the Online Dating Inventory to assess engagement in online dating, and the Conventional Offline Dating Inventory, a measure created by the researchers to assess behaviors that allow the participants to meet possible romantic partners in every day life through non-internet activities. Success is operationally defined according to the goals participants had going into the date and whether or not that goal was achieved. Data collection is still ongoing; however, we expect to see significantly more success for participants higher in rejection sensitivity when initiating through online dating websites. To ensure external validity, data are being collected from two different articipation pools. Currently the survey is being administered through Sona to reach college students and these are the data that will be presented. The survey will also be uploaded to Amazon’s Mechanical Turk to reach older adults. If our hypothesis is correct, this would indicate that online dating may benefit those individuals who are high in rejection sensitivity as it could give them an alternative avenue to initiating romantic relationships and possibly finding success in those relationships.

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Jungner, Högne. "Thermoluminescence dating in archaeology and geology in Finland comparison with results from radiocarbon dating /." Hki : Societas scientiarum Fennica : Academic Bookstore [distr.], 1987. http://catalog.hathitrust.org/api/volumes/oclc/57779283.html.

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Hernandez, Bridgette Lynn. "Violence in teen dating relationships: Factors that may influence the occurrence of dating violence." CSUSB ScholarWorks, 2000. https://scholarworks.lib.csusb.edu/etd-project/1651.

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The current study used a Post-positivist paradigm and was quantitative in nature. In addition, it used a descriptive survey design, which utilized self-reported questionnaires. The final sample included 125 students, ages 18-20, in undergraduate psychology courses at a Southern California university. This study attempted to explore the differences between the tree types of dating violence profiles: 1) victim only, 2) perpetrator only and 3) mutually violent; however, only 37 participants completed the questionnaire, which made statistical analysis impossible. Nonetheless, this study explored differences in relation to the demographic characteristics and five variables: a) gender, b) self-esteem, c) severity of violence, d) relationship satisfaction, and e) acceptance of violence. Therefore, this study proposed that differences would be identified and used correlations to reveal any associations between the variables. It was discovered that dating violence occurred among the sample with an 87.8% prevalence rate.

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Anderson, Cajsa Lisa. "Dating Divergence Times in Phylogenies." Doctoral thesis, Uppsala University, Department of Evolution, Genomics and Systematics, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-8155.

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This thesis concerns different aspects of dating divergence times in phylogenetic trees, using molecular data and multiple fossil age constraints.

Datings of phylogenetically basal eudicots, monocots and modern birds (Neoaves) are presented. Large phylograms and multiple fossil constraints were used in all these studies. Eudicots and monocots are suggested to be part of a rapid divergence of angiosperms in the Early Cretaceous, with most families present at the Cretaceous/Tertiary boundary. Stem lineages of Neoaves were present in the Late Cretaceous, but the main divergence of extant families took place around the Cre-taceous/Tertiary boundary.

A novel method and computer software for dating large phylogenetic trees, PATHd8, is presented. PATHd8 is a nonparametric smoothing method that smoothes one pair of sister groups at a time, by taking the mean of the added branch lengths from a terminal taxon to a node. Because of the local smoothing, the algorithm is simple, hence providing stable and very fast analyses, allowing for thousands of taxa and an arbitrary number of age constraints.

The importance of fossil constraints and their placement are discussed, and concluded to be the most important factor for obtaining reasonable age estimates.

Different dating methods are compared, and it is concluded that differences in age estimates are obtained from penalized likelihood, PATHd8, and the Bayesian autocorrelation method implemented in the multidivtime program. In the Bayesian method, prior assumptions about evolutionary rate at the root, rate variance and the level of rate smoothing between internal edges, are suggested to influence the results.

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Baril, Marc René. "Optical dating of tsunami deposits." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/mq24088.pdf.

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Sinclair, Merek. "Enjokosai : 'paid dating' in Japan /." Title page, contents and introduction only, 2001. http://web4.library.adelaide.edu.au/theses/09AR/09ars6166.pdf.

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Gautier, Annaig. "Luminescence dating of archaeometallurgical slag." Thesis, University of Oxford, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.326805.

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Lai, ZhongPing. "Luminescence dating of Chinese loess." Thesis, University of Oxford, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.419053.

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韓志勇 and Zhiyong Han. "Thermoluminescence dating of granitic quartz." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1999. http://hub.hku.hk/bib/B31238555.

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Chu, Sai-kwan Cassini, and 朱世君. "Compensated dating in Hong Kong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/198823.

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This thesis is an empirical study on the phenomenon of compensated dating [hereafter known as CD] in Hong Kong. It examines the lived experiences of CD participants and their self-understandings of their identities and behaviors. Drawing from formal in-depth interviews with 30 male clients and 12 young women who provided CD, cyber ethnography of a major online CD forum, informal conversations with CD participants and offline participant observations of various types of non-commercial and non-sexual social gatherings amongst groups of CD participants from the period between March 2010 and December 2012, this thesis examines why and how individuals come to be involved in CD, how they form intimacies in the context of CD and the nature of these intimacies. In the process, it illuminates the emerging social phenomenon of CD in light of the transformation of intimacy, plastic sexuality, new female and male biographies, gender relationships, the advance of information technology, and various social changes in an increasing fragmented and risky society as we enter into the world of late modernity. This thesis argues that CD participants perceive CD as a space for practicing plastic sexuality rather than a form of prostitution. The fact that sex does not necessarily happen in CD, the dynamic interactions amongst CD participants, and the changes of conventional sexual script from a marital, reproductive and monogamous one to a non-marital, non-reproductive, recreational, non-monogamous and even emotionally indifferent one make the CD script more like the mainstream sexual script in late modernity and less like the traditional commercial sexual script. The resemblance between the CD script and modern intimacy serves as a major rationale for CD participants to justify their CD behaviors. This thesis also argues that male clients of CD desire more than just bounded authenticity and that CD relationship is a complex and dynamic interpersonal relationship rather than a simple and static seller-buyer relationship because more often than not, CD participants extend their relationships beyond a bounded, commercial sexual context to an unbounded, non-commercial social context. This thesis examines the factors that facilitate CD participants to transform an impersonal and bounded commercial relationship to a genuine and unbounded interpersonal and/or romantic relationship. This thesis concludes that although CD relationships may be ephemeral, precarious and founded on economic elements, so too are many conventional relationships in modern society. There is an increasing intellectual tension to demarcate between CD relations and conventional intimate relations because while the former underscores the romantic and reciprocal qualities of the later, the later also reflects the recreational, economic and unstable elements of the former. Although plastic sexuality, the transformation of intimacy and various consequences of modernity are not in themselves the causes of the emergence of CD, they do create the contexts of an environment that is favorable to the development and growth of the CD phenomenon.
published_or_final_version
Sociology
Doctoral
Doctor of Philosophy

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Tiano, Pasquale. "Magnetic dating of Vesuvian lavas." Thesis, University of Plymouth, 2001. http://hdl.handle.net/10026.1/2045.

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A palaeomagnetic study has been carried out on Vesuvian lava flows emplaced since 79 AD. This involved both palaeodirection and palaeointensity investigations of samples from sites on the W, S and SE slopes of the volcano. Thermal demagnetization of 3 component IRMs, susceptibility measurements and coercivity analyses have been carried out on one pilot specimen per site in order to identify the magnetic carriers and to estimate the magnetic grain size. The identificatìon of the primary direction of TRM was carried out following very stringent criteria (Incoronato, 1996). Palaeointensities were evaluated using both a modification of the Modified Thellier & Thellier method (McClelland et al., 1996) and the innovatìve microwave technique (Shaw et al., 1999). This study has shown that establishing whether or not different exposures or flows are contemporaneous can be established and, in most, but not all, cases can be undertaken successfully using magnetic information recorded by Vesuvian lavas to define the geomagnetic field direction and intensity at the time of their eruption. It is shown that numerous lava flows, outcropping on the W to S slopes of the volcano, must be associated to a large eruption in AD 1631, confirming some previous studies. A new age for a lava flow, ascribed in literature to the 1697 event, is suggested on the basis of both palaeodirection and palaeointensity investigations. Significantly different properties have been found between microwave and thermal experiments although they showed an exceptional level of agreement for the AD 1631 lava flow. In general the trend the palaeointensity variations was similar to that obtained by thermal processes for the last few centuries from other European, Mediterranean and Near East regions (Aitken et al., 1989).

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Läänelaid, Alar. "Tree-ring dating in Estonia." Helsinki : University of Helsinki, 2002. http://ethesis.helsinki.fi/julkaisut/mat/geolo/vk/laanelaid/.

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Han, Zhiyong. "Thermoluminescence dating of granitic quartz /." Hong Kong : University of Hong Kong, 1999. http://sunzi.lib.hku.hk/hkuto/record.jsp?B21583766.

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Dean, Jeffrey S. Robinson William J. "Southwest Archaeological Tree-Ring Dating." Laboratory of Tree-Ring Research, University of Arizona (Tucson, AZ), 1991. http://hdl.handle.net/10150/303522.

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Klipfel, Katherine Marie. "The Neuropsychological Correlates of Dating Aggression: Investigating the Role of Executive Functions in Dating Aggression." Kent State University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=kent1448134146.

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Araya, Madeleine, and Malin Chan. "Den virtuella dejtingvärlden : En studie om användandet av nätdejtingsajter." Thesis, Södertörns högskola, Institutionen för kommunikation, medier och it, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:sh:diva-5773.

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The purpose of this study has been to investigate the virtual world that people are part of on online dating sites. To do this we have investigated two different research questions, which are the following: What functions do the online dating sites provide? Why and how are the online dating sites being used by their members? In order to gather information about these matters, we have used a qualitative method consisting of participating observation, scrutinizing and single person interviews. Our results indicate that people have different goals with their usage of online dating sites; some are looking for love, a long-term relationship while others are looking for sexual contact. There are many different online dating sites to choose from depending on the users’ objective. The online dating sites we have observed offer similar functions. To find someone of interest most of our interviewees use the search function. The way of initializing contact when finding someone of interest varies between our interviewees, but most of them send flirts and mails. Online dating offers a possible alternative for people to find a potential partner.

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Fruth, Abbey L. "Dating and adolescents' psychological well-being." Bowling Green, Ohio : Bowling Green State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=bgsu1174582879.

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Wang, Xiying. "Dating violence in post-socialist Beijing." Click to view the E-thesis via HKUTO, 2007. http://sunzi.lib.hku.hk/hkuto/record/B38310132.

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Rhodes, Edward John. "Optical dating of quartz from sediments." Thesis, University of Oxford, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.258027.

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Templer, R. H. "Thermoluminescence techniques for dating zircon inclusions." Thesis, University of Oxford, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.376953.

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Huntriss, Alicia. "A Bayesian analysis of luminescence dating." Thesis, Durham University, 2008. http://etheses.dur.ac.uk/2928/.

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Luminescence dating is a widespread dating method used in the fields of archaeology and Quaternary science. As an experimental method it is subject to various uncertainties in the determination of parameters that are used to evaluate age. The need to express these uncertainties fully, combined with the prior archaeological knowledge commonly available, motivates the development of a Bayesian approach to the assessment of age based on luminescence data. The luminescence dating procedure is dissected into its component parts, and each is considered individually before being combined to find the posterior age distribution. We use Bayesian multi-sample calibration to find the palaeodose in the first stage of the model, consider the problem of identifying a plateau in the data, and then use this, along with the annual dose, to estimate age. The true sample age is then modelled, incorporating any prior information available, both for an individual sample and for a collection of samples with related ages.

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Poon, Hon-fong, and 潘漢芳. "Dating the extant version of Kongcongzi." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2008. http://hub.hku.hk/bib/B40987905.

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Wang, Xiying, and 王曦影. "Dating violence in post-socialist Beijing." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2007. http://hub.hku.hk/bib/B38310132.

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宗靜航 and Ching-hong Chung. "On the dating of Shangshu Kongzhuan." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B43896078.

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33

Karlsberg, Angela Jane. "Flexible Bayesian methods for archaeological dating." Thesis, University of Sheffield, 2006. http://etheses.whiterose.ac.uk/12848/.

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Statistical models for the calibration of both independent and related groups of radiocarbon determinations are now well established and there exists a number of software packages such as BCal, OxCal and CALIB that can perform the necessary calculations to implement them. When devising new statistical models it is important to understand the motivations and needs of the archaeologists. When researchers select samples for radiocarbon dating, they are often not interested in when a specific plant or animal died. Instead, they want to use the radiocarbon evidence to help them to learn about the dates of other events, which cannot be dated directly but which are of greater historical or archaeological significance (e.g. the founding of a site). Our initial research focuses on formulating prior distributions that reliably represent a priori information relating to the rate of deposition of dateable material within an archaeological time period or phase. In archaeology, a phase is defined to be a collection of excavated material (context or layers) bounded early and late by events that are of archaeological importance. Current software for estimating boundary dates only allows for one possible type of a priori distribution, which assumes that material suitable for dating was deposited at a uniform rate between the start and end points of the phase. Although this model has been useful for many real problems, researchers have become increasingly aware of its limitations. We therefore propose a family of alternative prior models (with properties tailored to particular problems within archaeological research) which includes the uniform as a special case and allows for more realistic and robust modelling of the deposition process. We illustrate, via two case studies, the difference in archaeological conclusions drawn from the data when implementing both uniform and non-uniform prior deposition models. The second area of research, that we take the first steps towards tackling, is spatiotemporal modelling of archaeological calibration problems. This area of research is of particular interest to those studying the response of plants and animals, including humans, to climate change. In archaeological problems our temporal information typically arises from radiocarbon dating, which leads to estimated rather than exactly known calendar dates. Many of these problems have some form of spatial structure yet it is very rare that the spatial structure is formally accounted for. The combination of temporal uncertainty and spatial structure means that we cannot use standard models to tackle archaeological problems of this kind. Alongside this, our knowledge of past landscapes is generally very poor as they were often very different from modern ones; this limits the amount of spatial detail that can be included in the modelling. In this thesis we aim to make reliable inferences in spatio-temporal problems by carefully devising a model that takes account of the temporal uncertainty as well as incorporating spatial structure, to provide probabilistic solutions to the questions posed. We illustrate the properties of both the conventional models and the spatio-temporal models using a case study relating to the radiocarbon evidence for the Late glacial reoccupation of NW Europe.

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Wheeler, G. C. W. S. "Luminescence studies relevant to archaeological dating." Thesis, University of Oxford, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.670305.

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35

Cronin, Kerry. "Making the move: Navigating dating transitions." The Church in the 21st Century Center at Boston College, 2014. http://hdl.handle.net/2345/bc-ir:103957.

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36

Stephenson, Pamela Shockey. "Peer Involvement in Adolescent Dating Violence." Kent State University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=kent1309290200.

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Banks, Eric Ormond. "EXAMINING INFIDELITIES WITHIN MONOGAMOUS DATING RELATIONSHIPS." University of Cincinnati / OhioLINK, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=ucin991753533.

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Barrett, Gerard Thomas. "Rehydroxylation dating : assessment for archaeological application." Thesis, Queen's University Belfast, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.695220.

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Investigations are carried out into the mass gain behaviour of fired clay ceramics following drying (130°C) and reheating (SOO°C), and the application of these mass gain properties to the dating of archaeological ceramics using a modified rehydroxylation dating (RHX) methodology, a component based approach. Gravimetric analysis is conducted using a temperature and humidity controlled glove box arrangement (featuring a top-loading balance) on eighteen samples of varied known ages and contexts; this occurs following transfer from environmentally controlled chambers where subsamples of these samples are aged at three temperatures (2S0C, 3SoC, 45°C) following drying and reheating. The sample set consists principally of post-medieval bricks, but also includes some post-medieval pottery as ·well as both Etruscan and Roman ceramics. A suite of techniques are applied to characterise these ceramics, including XRO, FTIR, p-XRF, thin-section petrography, BET analysis, TG-MS and permeametry. Significant findings are presented related to the drying of samples, the causes of poor mass gain behaviour, the mass gain behaviour following drying at 130°C and the chemisorption processes involved, the relationship between the mass gain behaviour following heating at 130°C and SOO°C, the appropriate models and descriptors of this behaviour, as well as the relationship Of the mass gain behaviour to the chemical, mineralogical, and structural properties of the ceramic involved. For RHX dating, a component based approach is presented and applied. The results are inconclusive, with the estimated ages of most samples generally far too large, neither confirming the effectiveness of a component based approach nor the use of a tA1/4 or tA1/n model. The effects of a range of factors (uncertainties, contamination, mineral alteration, short term heating effect) on the estimated ages are examined and discussed.

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Armstrong, Florian Traci L., and Scottie Misner. "Food Product Dating and Storage Times." College of Agriculture, University of Arizona (Tucson, AZ), 2015. http://hdl.handle.net/10150/559563.

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Revised 06/2015; Originally published: 07/2006
3 pp.
Nutritious food is an important part of individual health and wellness. One way to ensure food is nutritious is to check the date on packages. The date is a guideline to help consumers use food when it is at its peak quality or before spoilage begins. Proper storage conditions and times are also essential in keeping healthy food safe to consume.

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Misner, Scottie, Carol Curtis, and Ralph Meer. "Food Product Dating and Storage Times." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2006. http://hdl.handle.net/10150/146453.

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2 pp.
With the exception of infant formula and baby food, product dating is not required by federal regulations. There is no uniform system used for food dating by manufacturers in the U.S. Although dating of some foods is required by more than 20 states, some states do not require any date codes. This publication is a brief guide for how to read food dating, which includes; types of dates, safety after dates expire, changing dates, dating of infant formula and baby food, can codes, dates on egg cartons, and storage times.

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41

Usera, Daniel Alexander. "Online dating interactions : a discursive look." Diss., University of Iowa, 2014. https://ir.uiowa.edu/etd/4778.

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The most important aspect of online dating is the messaging. Resting upon that argument, this project discursively analyzes naturally-occurring interactions between users on two online dating sites. Current facework, relationship initiation, and online dating research lacks a systematic understanding of the conversational processes involved in establishing a relationship online. This thesis addresses that deficit of understanding. Results show that there is a sequence and a set of resources that online dating users draw upon to get acquainted; suggesting a new typology of opening gambits based on technological affordances. Results also show that users openly negotiate the process of relationship initiation, discussing both the interaction situation and their performances. Overall, this investigation provides insights that give researchers and online dating users a deeper and more complete understanding of the work that is done on a turn-by-turn, conversational level in the online dance of courtship.

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Pienaar, Marc. "Dating the stone age at Rose Cottage Cave South Africa : an exercise in optically dating cave sediments." Pretoria : [s.n.], 2005. http://upetd.up.ac.za/thesis/available/etd-06052007-084723.

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Harun, Ayuthia Sari. "Feedback and self-esteem in dating relationships /." [St. Lucia, Qld.], 2003. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe19250.pdf.

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Ignatius, Peter. "Dating the division between Disciples and Independents." Theological Research Exchange Network (TREN), 1987. http://www.tren.com.

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Es, Hendrickje Jacoba van. "Thermoluminescence dating of sediments using mineral zircon." [S.l. : [Groningen : s.n.] ; University Library Groningen] [Host], 2008. http://irs.ub.rug.nl/ppn/308380185.

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46

Bond, Timothy Martin. "Dating Venus : numerical simulations of resurfacing processes." Thesis, Imperial College London, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.429625.

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Rees-Jones, Julie. "Optical dating of selected British archaeological sediments." Thesis, University of Oxford, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.295369.

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48

Gaylor, Jonathan. "40Ar/39Ar Dating of the Late Cretaceous." Phd thesis, Université Paris Sud - Paris XI, 2013. http://tel.archives-ouvertes.fr/tel-01017165.

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As part of the wider European GTS Next project, I propose new constraints on the ages of the Late Cretaceous, derived from a multitude of geochronological techniques, and successful stratigraphic interpretations from Canada and Japan. In the Western Canada Sedimentary Basin, we propose a new constraint on the age of the K/Pg boundary in the Red Deer River section (Alberta, Canada). We were able to cyclostratigraphically tune sediments in a non-marine, fluvial environment utilising high-resolution proxy records suggesting a 11-12 precession related cyclicity. Assuming the 40Ar/39Ar method is inter-calibrated with the cyclostratigraphy, the apparent age for C29r suggests that the K/Pg boundary falls between eccentricity maxima and minima, yielding an age of the C29r between 65.89 ± 0.08 and 66.30 ± 0.08 Ma. Assuming that the bundle containing the coal horizon represents a precession cycle, the K/Pg boundary is within the analytical uncertainty of the youngest zircon population achieving a revised age for the K/Pg boundary as 65.75 ± 0.06 Ma. The Campanian - Maastrichtian boundary is preserved in the sedimentary succession of the Horseshoe Canyon Formation and has been placed ~8 m below Coal nr. 10. Cyclostratigraphic studies show that the formation of these depositional sequences (alternations) of all scales are influenced directly by sea-level changes due to precession but more dominated by eccentricity cycles proved in the cyclostratigraphic framework and is mainly controlled by sand horizons, which have been related by autocyclicity in a dynamic sedimentary setting. Our work shows that the Campanian - Maastrichtian boundary in the Western Canada Sedimentary Basin coincides with ~2.5 eccentricity cycles above the youngest zircon age population at the bottom of the section and ~4.9 Myr before the Cretaceous - Palaeogene boundary (K/Pg), and thus corresponds to an absolute age of 70.65 ± 0.09 Ma producing an ~1.4 Myr younger age than recent published ages. Finally, using advances with terrestrial carbon isotope and planktonic foraminifera records within central Hokkaido, Northwest Pacific, sections from the Cretaceous Yezo group were correlated to that of European and North American counterparts. Datable ash layers throughout the Kotanbetsu and Shumarinai section were analysed using both 40Ar/39Ar and U-Pb methods. We successfully dated two ash tuff layers falling either side of the Turonian - Coniacian boundary, yielding an age range for the boundary between 89.31 ± 0.11 Ma and 89.57 ± 0.11 Ma or a boundary age of 89.44 ± 0.24 Ma. Combining these U-Pb ages with recent published ages we are able to reduce the age limit once more and propose an age for the Turonian - Coniacian boundary as 89.62 ± 0.04 Ma.

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Stamou-Papastamou, Constantina. "Dating Victorians : an experimental approach to stylochronometry." Thesis, University of Bedfordshire, 2005. http://hdl.handle.net/10547/322883.

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The writing style of a number of authors writing in English was empirically investigated for the purpose of detecting stylistic patterns in relation to advancing age. The aim was to identify the type of stylistic markers among lexical, syntactical, phonemic, entropic, character-based, and content ones that would be most able to discriminate between early, middle, and late works of the selected authors, and the best classification or prediction algorithm most suited for this task. Two pilot studies were initially conducted. The first one concentrated on Christina Georgina Rossetti and Edgar Allan Poe from whom personal letters and poetry were selected as the genres of study, along with a limited selection of variables. Results suggested that authors and genre vary inconsistently. The second pilot study was based on Shakespeare's plays using a wider selection of variables to assess their discriminating power in relation to a past study. It was observed that the selected variables were of satisfactory predictive power, hence judged suitable for the task. Subsequently, four experiments were conducted using the variables tested in the second pilot study and personal correspondence and poetry from two additional authors, Edna St Vincent Millay and William Butler Yeats. Stepwise multiple linear regression and regression trees were selected to deal with the first two prediction experiments, and ordinal logistic regression and artificial neural networks for two classification experiments. The first experiment revealed inconsistency in accuracy of prediction and total number of variables in the final models affected by differences in authorship and genre. The second experiment revealed inconsistencies for the same factors in terms of accuracy only. The third experiment showed total number of variables in the model and error in the final model to be affected in various degrees by authorship, genre, different variable types and order in which the variables had been calculated. The last experiment had all measurements affected by the four factors. Examination of whether differences in method within each task play an important part revealed significant influences of method, authorship, and genre for the prediction problems, whereas all factors including method and various interactions dominated in the classification problems. Given the current data and methods used, as well as the results obtained, generalizable conclusions for the wider author population have been avoided.

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Batt, Catherine Mary. "Archaeomagnetic dating : investigating new materials and techniques." Thesis, Durham University, 1992. http://etheses.dur.ac.uk/6007/.

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This thesis describes the application of archaeomagnetic techniques to the study of archaeological materials from Britain and China. It also explores the compilation and construction of the archaeomagnetic calibration curve, with particular reference to British data. One of the primary objectives of this study has been to extend the range of materials dated by archaeomagnetism to include waterlain sediments. Over 30 different sediments from a wide variety of archaeological environments were investigated by archaeomagnetic methods. Information on the environment of deposition was provided by measurements of magnetic fabric, while isothermal remanent magnetisation determinations were used to identify the magnetic minerals present. The results have been compared with the archaeological evidence and in many cases good correspondence has been found. It has been possible to make some general inferences as to which environments are most likely to yield sediments datable by archaeomagnetism. Similar measurement techniques were used to study six, dated, fired structures from the Xi'an area of Shaanxi Province, China. Together with other archaeomagnetic data published for this vicinity, these measurements provided the nucleus of information necessary for the construction of a calibration curve for this region and their magnetic properties were compared with those of the sediments. Central to both the study of sediments and Chinese fired material was the construction and use of the archaeomagnetic calibration curve. A database was formulated and implemented in order to archive British archaeomagnetic information and provide a basis on which to construct a revised curve. A number of methods of curve production were examined, particularly 'moving window' smoothing, which provided a rigorous, mathematical approach and produced a curve with realistic error bounds.

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Dissertations / Theses on the topic 'Dating'

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