13,374 research outputs found
Identity and adjustment: experiences of the organ transplant recipient
Positive health-related behaviour is particularly important for liver transplant recipients’ (LTRs) recovery. However, non-adherence in adolescents post-transplant is thought to be greater than, or equal to, 50%. Literature searches have found limited research into the area of young adults’ experiences of having a donated liver. Knowing more of their experience seems important to help inform practice to improve adherence and ultimately save lives.
The present study aimed to construct a grounded theory of young adults’ experiences of having a liver transplant, in order to better understand how young adults may adjust following such experiences.
Semi-structured interviews were conducted with twelve liver transplant recipients (LTRs; five female, seven male). Data were analysed using constructivist grounded theory.
A model was constructed to capture the dynamic interactions between thirteen categories, resulting in four main themes: Finding Identity Post-Transplant, Carrying Responsibility, Unseen, Unspoken or Misunderstood Challenges and Adjusting to Life After Transplant.
The study highlights the importance of the themes in psychological adjustment post-transplant. Understanding this process is imperative in order to improve health-related behaviours in a cohort with traditionally poor adherence. Implications for further research and clinical practice are discussed, including educating LTRs to raise their levels of self-efficacy, which have a positive impact on adherence
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Subjective Patterns of Randomness and Choice: Some Consequences of Collective Responses
Any individual's response intended to be random should be as probable as any other. However, 3 experiments show that many people's independent responses depart from the expected chance distribution. Participants responding to instructions of chance and related concepts favor the available options unequally in a similar way. Consequently, in hide-and-seek games, hiders converge on certain locations and are thereby detected beyond chance by seekers who share their preferences. People agree on salient and on nonsalient options, both of which are preferred under different instructions and even in the absence of instructions. Group responses strongly correlate under diverse, even opposing (e.g., competitive and cooperative) directions. Apparently, common default tendencies, combining random and aesthetic choices, are only somewhat modified under specific instructions. Maximal agreement with others is obtained by implementing one's own aesthetic preferences. These results broadly replicate in one- and two-dimensional tasks. Implications of the findings, their possible roots, and their connection to constructs from, e.g., game theory and subjective-complexity research, are discussed
Asymptotic Conditional Distribution of Exceedance Counts: Fragility Index with Different Margins
Let be a random vector, whose components are not
necessarily independent nor are they required to have identical distribution
functions . Denote by the number of exceedances among
above a high threshold . The fragility index, defined by
if this limit exists, measures the
asymptotic stability of the stochastic system as the threshold
increases. The system is called stable if and fragile otherwise. In this
paper we show that the asymptotic conditional distribution of exceedance counts
(ACDEC) , , exists, if the
copula of is in the domain of attraction of a multivariate extreme
value distribution, and if
exists for
and some . This enables the computation of
the FI corresponding to and of the extended FI as well as of the
asymptotic distribution of the exceedance cluster length also in that case,
where the components of are not identically distributed
Injector design guidelines for gas/liquid propellant systems
Injector design guidelines are provided for gas/liquid propellant systems. Information was obtained from a 30-month applied research program encompassing an analytical, design, and experimental effort to relate injector design parameters to simultaneous attainment of high performance and component (injector/thrust chamber) compatibility for gas/liquid space storable propellants. The gas/liquid propellant combination studied was FLOX (82.6% F2)/ ambient temperature gaseous methane. Design criteria that provide for simultaneous attainment of high performance and chamber compatibility are presented for both injector types. Parametric data are presented that are applicable for the design of circular coaxial and like-doublet injectors that operate with design parameters similar to those employed. However, caution should be exercised when applying these data to propellant combinations whose elements operate in ranges considerably different from those employed in this study
CP Tagged Decays at SuperBaBar
We explore the possibility of measuring the CKM parameter gamma using CP
tagged decays at a very high luminosity e+e- B Factory. A new collider capable
of integrating as much as 10 inverse attobarns per year is being discussed as a
possible future for SLAC beyond the current PEP-II program, and could also be
in the future of KEK. In two years of operation, it could be possible for a
successor to BaBar or Belle to accumulate a sample of one million CP tagged B
decays. We find that a theoretically clean extraction of gamma with uncertainty
less than 5 degrees may be achievable in the analysis of such a data set.Comment: 14 pages, 4 figures; minimal revisions for version to appear in
Physical Review D, all formulas and conclusions unchange
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