Photoabsorption spectra of the diamagnetic hydrogen atom in the transition regime to chaos: Closed orbit theory with bifurcating orbits

With increasing energy the diamagnetic hydrogen atom undergoes a transition from regular to chaotic classical dynamics, and the closed orbits pass through various cascades of bifurcations. Closed orbit theory allows for the semiclassical calculation of photoabsorption spectra of the diamagnetic hydrogen atom. However, at the bifurcations the closed orbit contributions diverge. The singularities can be removed with the help of uniform semiclassical approximations which are constructed over a wide energy range for different types of codimension one and two catastrophes. Using the uniform approximations and applying the high-resolution harmonic inversion method we calculate fully resolved semiclassical photoabsorption spectra, i.e., individual eigenenergies and transition matrix elements at laboratory magnetic field strengths, and compare them with the results of exact quantum calculations.Comment: 26 pages, 9 figures, submitted to J. Phys.

Examining Faith Community Nurses’ Perception and Utilization of Electronic Health Records

Abstract The purpose of this study is to identify current faith community nurse documentation practices, explore factors impacting intention to adopt electronic health records, and identify perceived barriers and benefits to electronic health record use among faith community nurses practicing in the Midwest. The technology acceptance model is used to examine impact of perceived usefulness and perceived ease of use of electronic health records on intention to adopt. This study is a quantitative exploratory research study utilizing a cross-sectional researcher-developed 39-item questionnaire. Surveys were distributed by mail and e-mail to faith community nurses practicing in South-Central Indiana and Western Kentucky. Survey data was collected from 114 faith community nurses whose nursing educational levels ranged from diploma to PhD for a response rate of 46%. Descriptive statistics and Pearson’s correlations were used to report study results. Positive correlations were found between both perceived usefulness and perceived ease of use and intention to adopt with a stronger correlation associated with perceived usefulness. Participants reported financial challenges as most significant barriers to electronic health record adoption while the highest rated benefits were associated with record access, enhanced care coordination, and improved ability to identify and communicate FCN practice to decision makers. This study adds new knowledge on documentation practices and perceptions of faith community nurses related to electronic health records. Understanding the impact of perceived usefulness, ease of use, barriers, and benefits on electronic health record adoption will inform future initiatives seeking to increase faith community nurse electronic health record adoption. Keywords: faith community nurses, electronic health record, adoption, barriers, facilitator

Exploring disorganized attachment style among Malay mothers in Malaysia: a study using the Attachment Style Interview

This article explores emerging themes involving disorganized attachment style among Malay Muslim mothers using the Attachment Style Interview (ASI). Analysis of the 18 mothers with disorganized attachment style (those with combined anxious and avoidant styles) utilized themes deemed important from the attachment research literature and selected based on a careful reading of the narrative cases. These include more extreme negative interpersonal experiences than found in other insecure attachment style descriptors, and included partner violence and related isolation/social exclusion. It also indicated more complex cognitive-affective disturbance including mixed or contradictory dependency patterns and both angry and fearful attitudes to others. We discuss the concept of disorganized attachment style in relation to abuse, social exclusion, and its implication for psychopathology, intervention, and treatment

XTE J1739-302: An Unusual New X-ray Transient

A new x-ray transient, designated XTE J1739-302, was discovered with the Proportional Counter Array (PCA) on the Rossi X-ray Timing Explorer (RXTE) in data from 12 August 1997. Although it was the brightest source in the Galactic Center region while active (about 3.0 x 10^-9 ergs/cm2/s from 2 to 25 keV), it was only observed on that one day; it was not detectable nine days earlier or two days later. There is no known counterpart at other wavelengths, and its proximity to the Galactic Center will make such an identification difficult due to source confusion and extinction. The x-ray spectrum and intensity suggest a giant outburst of a Be/neutron star binary, although no pulsations were observed and the outburst was shorter than is usual from these systems.Comment: 11 pages incorporating 6 figures, AAStex; accepted for The Astrophysical Journal, Part 2 (Letters

Semiclassical mechanics of a non-integrable spin cluster

We study detailed classical-quantum correspondence for a cluster system of three spins with single-axis anisotropic exchange coupling. With autoregressive spectral estimation, we find oscillating terms in the quantum density of states caused by classical periodic orbits: in the slowly varying part of the density of states we see signs of nontrivial topology changes happening to the energy surface as the energy is varied. Also, we can explain the hierarchy of quantum energy levels near the ferromagnetic and antiferromagnetic states with EKB quantization to explain large structures and tunneling to explain small structures.Comment: 9 pages. For related works see "http://www.msc.cornell.edu/~clh/clh.html

Kriteria Biografi Tokoh yang Bermuatan Toleransi Kehidupan Beragama

The purpose of this study were: (1) describe the criteria biographical charged religious tolerance value and (2) biography that meet the criteria for. This research is descriptive qualitative research that is part of the research and development. Data in the form of information in the form of informant statements about the criteria biographical containing values religious tolerance and biographical that meet these criteria. The data was collected by questionnaire and interview from 13 informants consisting of high school teachers and lecturers in Surakarta PBSI FKIP UMS. The data is then codified, tabulated, and analyzed with a critical analysis techniques. Results of the analysis are presented with a formal presentation and tables. Presented the results of this study as follows. (1) There are 44 criteria which can be classified biographical be criteria based on figures and criteria based on the contents of the biography. Criteria based on figures include: based on the character, the existence, religiosity, services / her work, and expertise. Criteria based on biographical forms include: content biography, language, biography, biography and origin. (2) The informant proposed a 39 character name which is considered to have the values of religious tolerance that can be used as an educational resource religious tolerance. However, only 18 were able to biographical mentioned identasnya complete

Re-Examining School Structures of People, Place, and Time to Promote Equity at the Middle Level

In 2018 we published a chapter entitled “Middle Grades Schools and Structures” (Ellerbrock et al., 2018a) in Literature Reviews in Support of the Middle Level Education Research Agenda (Mertens et al., 2013). Building on the earlier work of Ellerbrock et al. (2018a), this chapter reviewed literature between 2000 and 2018 that reported on the organizational structures of middle level education settings in the United States of America and Australia. Though the findings highlighted the dearth of research specifically examining the organizational structures of middle level education, the literature examined supported the original three key interconnected themes of people, place, and time (Ellerbrock et al., 2018b) as being key features necessary for the implementation of effective middle schooling practices. In our conclusion, we called for more robust research in this area to guide policy and enact practices across different jurisdictions. At the same time, Bishop and Nagle (2018) noted the many increasing disparities in access to quality education and invited readers to consider how schools can serve all students both equitably and well. Equitable access is first and foremost, but equitable outcomes for all students is paramount. At the time of publication of all of these works, no one could have predicted the significant negative impact of COVID-19 and the resultant exacerbation of the already challenging inequities in education across the globe. However, research over the last five years, and particularly since 2020, has placed a greater focus on policy, system, and grassroots pedagogical changes to bridge this widening gap. In light of this heightened focus, this essay aims to reexamine the three key themes of people, place, and time and, when implemented with integrity, the ways middle grades schools and structures can contribute to creating both developmentally responsive and equitable educational experiences for young adolescent learners

Feasibility, safety and acceptability of select outcome measures in a physiotherapy study protocol for boys with haemophilia.

BACKGROUND: There is a lack of functional performance measures for children and young people with haemophilia (CYPwH) with associated control data from typically developing boys (TDB). The literature advocates development of a core set of outcome measures for different chronic conditions. As medical treatment improves, CYPwH are experiencing better outcomes; therefore, more challenging measures are required to monitor physical performance. Such testing is not performed routinely, due to practical and safety concerns. AIM: Evaluate the feasibility, safety and acceptability of select outcome measures as part of a study protocol testing CYPwH; including myometry, 10 metre incremental shuttle walk test (10-m ISWT), iSTEP (an incremental step test, with data from TDB), and 1 week of accelerometry-wear at home. METHODS: Sixty-six boys aged 6-15 years with mild, moderate or severe haemophilia A or B (including inhibitors) attending routine clinics at Great Ormond Street Hospital were approached to participate. Descriptive statistics and content analysis were used to assess outcomes of feasibility, safety and acceptability, which included recruitment/retention rates, protocol completion within routine appointment timeframes, performance testing without serious adverse events/reactions (SAE/SARs), and acceptability to CYPwH of high-level performance measures. RESULTS: Outcomes were met: 43 boys completed testing at clinic review (Jan-Nov 2018) within a 10-month timeframe, retention was 95% at completion of protocol and no SAE/SARs were reported throughout testing. CONCLUSION: Feasibility, safety and acceptability of the study protocol have been established in this population. Both high-level performance tests, iSTEP and 10-m ISWT, were an acceptable addition to boys' routine clinic appointments and could be safe, acceptable choices of outcome measure as part of a core set of tests for CYPwH. Further investigation of the psychometric properties for the iSTEP is now justified, in order for it to be used as a standardised, validated, reliable outcome measure in clinical or research settings. TRIAL REGISTRATION: Retrospectively registered on September 3, 2019, on ClinicalTrials.gov (ID: NCT04076306 )