16,804 research outputs found
Psychological type preferences of female Bible College students in England
A sample of 122 female students attending a Pentecostal Bible College in England completed Form G (Anglicised) of the Myers-Briggs Type Indicator (MBTI). The data demonstrated preferences for extraversion over introversion, for sensing over intuition, for feeling over thinking, and for judging over perceiving. The predominant type was ISFJ (16%), followed by ESFJ (12%). Comparison with the population norms demonstrated an over-representation of intuitives among this sample of Bible College students
Growth or decline in the Church of England during the decade of Evangelism: did the Churchmanship of the Bishop matter?
The Decade of Evangelism occupied the attention of the Church of England throughout the 1990s. The present study employs the statistics routinely published by the Church of England in order to assess two matters: the extent to which these statistics suggest that the 43 individual dioceses finished the decade in a stronger or weaker position than they had entered it and the extent to which, according to these statistics, the performance of dioceses led by bishops shaped in the Evangelical tradition differed from the performance of dioceses led by bishops shaped in the Catholic tradition. The data demonstrated that the majority of dioceses were performing less effectively at the end of the decade than at the beginning, in terms of a range of membership statistics, and that the rate of decline varied considerably from one diocese to another. The only exception to the trend was provided by the diocese of London, which experienced some growth. The data also demonstrated that little depended on the churchmanship of the diocesan bishop in shaping diocesan outcomes on the performance indicators employed in the study
Throttling for the game of Cops and Robbers on graphs
We consider the cop-throttling number of a graph for the game of Cops and
Robbers, which is defined to be the minimum of , where
is the number of cops and is the minimum number of
rounds needed for cops to capture the robber on over all possible
games. We provide some tools for bounding the cop-throttling number, including
showing that the positive semidefinite (PSD) throttling number, a variant of
zero forcing throttling, is an upper bound for the cop-throttling number. We
also characterize graphs having low cop-throttling number and investigate how
large the cop-throttling number can be for a given graph. We consider trees,
unicyclic graphs, incidence graphs of finite projective planes (a Meyniel
extremal family of graphs), a family of cop-win graphs with maximum capture
time, grids, and hypercubes. All the upper bounds on the cop-throttling number
we obtain for families of graphs are .Comment: 22 pages, 4 figure
Software reliability experiments data analysis and investigation
The objectives are to investigate the fundamental reasons which cause independently developed software programs to fail dependently, and to examine fault tolerant software structures which maximize reliability gain in the presence of such dependent failure behavior. The authors used 20 redundant programs from a software reliability experiment to analyze the software errors causing coincident failures, to compare the reliability of N-version and recovery block structures composed of these programs, and to examine the impact of diversity on software reliability using subpopulations of these programs. The results indicate that both conceptually related and unrelated errors can cause coincident failures and that recovery block structures offer more reliability gain than N-version structures if acceptance checks that fail independently from the software components are available. The authors present a theory of general program checkers that have potential application for acceptance tests
Three-dimensional coating and rimming flow: a ring of fluid on a rotating horizontal cylinder
The steady three-dimensional flow of a thin, slowly varying ring of Newtonian fluid on either the outside or the inside of a uniformly rotating large horizontal cylinder is investigated. Specifically, we study “full-ring” solutions, corresponding to a ring of continuous, finite and non-zero thickness that extends all the way around the cylinder. In particular, it is found that there is a critical solution corresponding to either a critical load above which no full-ring solution exists (if the rotation speed is prescribed) or a critical rotation speed below which no full-ring solution exists (if the load is prescribed). We describe the behaviour of the critical solution and, in particular, show that the critical flux, the critical load, the critical semi-width and the critical ring profile are all increasing functions of the rotation speed. In the limit of small rotation speed, the critical flux is small and the critical ring is narrow and thin, leading to a small critical load. In the limit of large rotation speed, the critical flux is large and the critical ring is wide on the upper half of the cylinder and thick on the lower half of the cylinder, leading to a large critical load.\ud
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We also describe the behaviour of the non-critical full-ring solution, and, in particular, show that the semi-width and the ring profile are increasing functions of the load but, in general, non-monotonic functions of the rotation speed. In the limit of large rotation speed, the ring approaches a limiting non-uniform shape, whereas in the limit of small load, the ring is narrow and thin with a uniform parabolic profile. Finally, we show that, while for most values of the rotation speed and the load the azimuthal velocity is in the same direction as the rotation of the cylinder, there is a region of parameter space close to the critical solution for sufficiently small rotation speed in which backflow occurs in a small region on the right-hand side of the cylinder
The Relation between Black Hole Mass, Bulge Mass, and Near-Infrared Luminosity
We present new accurate near-infrared (NIR) spheroid (bulge) structural
parameters obtained by two-dimensional image analysis for all galaxies with a
direct black hole (BH) mass determination. As expected, NIR bulge luminosities
Lbul and BH masses are tightly correlated, and if we consider only those
galaxies with secure BH mass measurement and accurate Lbul (27 objects), the
spread of MBH-Lbul is similar to MBH-sigma, where sigma is the effective
stellar velocity dispersion. We find an intrinsic rms scatter of ~0.3 dex in
log MBH. By combining the bulge effective radii R_e measured in our analysis
with sigma, we find a tight linear correlation (rms ~ 0.25 dex) between MBH and
the virial bulge mass (propto R_e sigma^2), with ~ 0.002. A partial
correlation analysis shows that MBH depends on both sigma and R_e, and that
both variables are necessary to drive the correlations between MBH and other
bulge properties.Comment: Astrophysical Journal Letters, in pres
Thermoviscous Coating and Rimming Flow
A comprehensive description is obtained of steady thermoviscous (i.e. with temperature-dependent viscosity) coating and rimming flow on a uniformly rotating horizontal cylinder that is uniformly hotter or colder than the surrounding atmosphere. It is found that, as in the corresponding isothermal problem, there is a critical solution with a corresponding critical load (which depends, in general, on both the Biot number and the thermoviscosity number) above which no ``full-film'' solutions corresponding to a continuous film of fluid covering the entire outside or inside of the cylinder exist. The effect of thermoviscosity on both the critical solution and the full-film solution with a prescribed load is described. In particular, there are no full-film solutions with a prescribed load M for any value of the Biot number when M is greater than or equal to M_{c0} divided by the square root of f for positive thermoviscosity number and when M is greater than M_{c0} for negative thermoviscosity number, where f is a monotonically decreasing function of the thermoviscosity number and M_{c0} = 4.44272 is the critical load in the constant-viscosity case. It is also found that when the prescribed load M is less than 1.50315 there is a narrow region of the Biot number - thermoviscosity number parameter plane in which backflow occurs
Psychological type preferences of male British Assemblies of God Theological College students: tough-minded or tender-hearted?
Psychological type theory proposes that people make decisions through using one of two dichotomous judging functions (thinking and feeling). People who prefer thinking make judgements based on impersonal logic and tend to be objective and tough-minded, while people who prefer feeling make judgements based on personal values and tend to be compassionate and tender-hearted. This study explores the notion that the judging functions are key predictors of individual differences in terms of religiosity. The psychological type preferences of a sample of 190 male Assemblies of God bible college students were assessed using Form G (Anglicised) of the Myers-Briggs Type Indicator. The data revealed preferences for thinking over feeling, and the implications of this finding are explored
Investigation of Junior Doctors’ Contact with an Occupational Health Department and their Transitional Year
Abstract
Background and aim; This thesis examines the mental health (MH) trajectory of Foundation Year junior doctors (F1s) in their first year of clinical training and the role of Occupational Health (OH).
There is limited research in this field. A literature review identified that OH is often poorly utilised (Cohen et al, 2016), and no literature examined the role that OH might be able to offer for this year group has not been examined. There is a poor understanding of how best to emotionally support doctors in general, specifically F1s, to sustain their mental well-being, reduce their suicide risk and address any factors that might be associated with these phenomena (Brooks et al, 2011).
Methodology: Thematic Analysis (TA) was the qualitative method used for this research and semi-structured questionnaires. A sample of ten F1s who had self-declared as experiencing or having had health conditions (both MH and with a physical health (PH) condition impacting on MH) were interviewed twice: once at the beginning (T1) and once at the end of their first year (T2). Interview questions explored experiences of the transition year, OH and of screening as an intervention.
Personal reflexivity is an important part of the methodology, and is discussed alongside the findings of a literature review and the analysis of participant interviews.
Analysis: The analysis identified themes across the T1 and T2 interviews. The following themes formed the basis of the T1 interviews:
1. Health seeking behaviour and OH
2. Internal world of doctors
3. External world of doctors -the transition and changes experienced by doctors.
4. Professional guidance, policy and politics.
Key themes from the second (T2) interviews were screening and follow up interviews was found to be valuable .The interviews were found to offer an opportunity for individual reflexivity which the doctors found beneficial and supportive.
Main Results: Those with long standing MH or PH conditions came to accept that it was “part of themselves” and something they needed to manage during this transitional period. One of the most notable findings was the importance of having an approachable and consistent individual who was the point of contact for the F1 who would follow them up if they did not attend or missed a session. F1’s contact with OH, they still reported a tendency to feel that they were wasting someone’s time if their mood was low. The findings of this study suggest that OH has a key role to engage with F1s early in the induction process with regards to screening and to recognise warning signs as well as to make contact at times of risk. The research shows that when screening and follow up is offered to F1s by OH for those with a previously known, or current, mental and physical ill health condition it is valued as a worthwhile intervention
Discussion: This study additionally explored the findings relating to OH specifically through the lens of psychoanalysis. A hypothetical working model was developed, using the work of Steiner (1993) and Jaeggi (2014) in particular, to understand what is happening to F1s as they progressed through the year. This offers a novel contribution to existing literature.
Limitations: This was a time limited study with a small, self-selected sample size. This study could be repeated across a larger population.
Conclusion: This research makes a novel contribution to understanding the challenges in delivering good OH clinical support to F1s in a system where stigma concerning MH issues, still operates. This study indicates that OH has a key opportunity to support F1s early in their clinical year to promote and enhance their health and well-being during the transitional period to Foundation Year Two (F2). Screening as intervention offered this group of F1s the opportunity to build an ongoing relationship with OH to facilitate their continuing well-being in a multitude of ways. These include recognising the importance of the “secure base” OH provides, and allowing for ease of access to a key contact in OH and the opportunity to build a relationship with this contact who might recognise signs of declining well-being and “reach out” if an F1 fails to attend appointments. Other important findings for OH were that these F1s gained insight and acceptance of MH conditions and increasingly drew on the potential of OH to provide a ‘reflexive space’ to support them as they transitioned to F2 and to facilitate work adjustments if necessary. These findings can be used by OH, to support the health and well-being of F1 who have a high prevalence of MH with associated risk factors (Brooks et al, 2011)
Recommendations for future research: further use of clinical diagnostic tools (e.g PHQ9 & GAD7) to monitor HWB of F1 during the screening FU process.
Keywords: Occupational Health, mental and physical health, support, transition, Foundation Year 1 doctors, junior doctors
Regenerative fuel cell study for satellites in GEO orbit
Summarized are the results of a 12-month study to identify high performance regenerative hydrogen-oxygen fuel cell concepts for geosynchronous satellite application. Emphasis was placed on concepts with the potential for high energy density (W-hr/lb) and passive means for water and heat management to maximize system reliability. Both polymer membrane and alkaline electrolyte fuel cells were considered, with emphasis on the alkaline cell because of its high performance, advanced state of development, and proven ability to operate in a launch and space environment. Three alkaline system concepts were studied. The first, the integrated design, utilized a configuration in which the fuel cell and electrolysis cells are alternately stacked inside a pressure vessel. Product water is transferred by diffusion during electrolysis and waste heat is conducted through the pressure wall, thus using completely passive means for transfer and control. The second alkaline system, the dedicated design, uses a separate fuel cell and electrolysis stack so that each unit can be optimized in size and weight based on its orbital operating period. The third design was a dual function stack configuration, in which each cell can operate in both fuel cell and electrolysis mode, thus eliminating the need for two separate stacks and associated equipment. Results indicate that using near term technology energy densities between 46 and 52 W-hr/lb can be achieved at efficiencies of 55 percent. System densities of 115 W-hr/lb are contemplated
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