Narrowband Searches for Continuous and Long-duration Transient Gravitational Waves from Known Pulsars in the LIGO-Virgo Third Observing Run

Isolated neutron stars that are asymmetric with respect to their spin axis are possible sources of detectable continuous gravitational waves. This paper presents a fully coherent search for such signals from eighteen pulsars in data from LIGO and Virgo's third observing run (O3). For known pulsars, efficient and sensitive matched-filter searches can be carried out if one assumes the gravitational radiation is phase-locked to the electromagnetic emission. In the search presented here, we relax this assumption and allow both the frequency and the time derivative of the frequency of the gravitational waves to vary in a small range around those inferred from electromagnetic observations. We find no evidence for continuous gravitational waves, and set upper limits on the strain amplitude for each target. These limits are more constraining for seven of the targets than the spin-down limit defined by ascribing all rotational energy loss to gravitational radiation. In an additional search, we look in O3 data for long-duration (hours-months) transient gravitational waves in the aftermath of pulsar glitches for six targets with a total of nine glitches. We report two marginal outliers from this search, but find no clear evidence for such emission either. The resulting duration-dependent strain upper limits do not surpass indirect energy constraints for any of these targets. © 2022. The Author(s). Published by the American Astronomical Society

Curricula for economic and social gain

Discusses ways of forming curriculum to promote employability and citizenship, without compromising academic values. Economic success is an aim of governments around the world. Their ‘human capital’ stance towards higher education implies the need to develop graduates’ capabilities to the full. The concept of graduate ‘employability’, currently being developed in the light of theory and empirical data, is beginning to find acceptance in the UK. One of the keys to its acceptability in higher education has been the alignment of employability with good learning – that is, learning that is manifested in complex outcomes. However, the achievement of complex outcomes requires a programme-level focus, rather than a focus on individual study units. This article reports on the way such a programme-level approach was adopted in four different universities in the UK, and how relatively small-scale actions have the potential to augment students’ employability. The implications for policy at the levels of the system, the higher education institution and the academic department are discussed

The experience of collaborative assessment in e-learning.

ABSTRACT This paper examines the various ways in which students talk about their experience and perceptions of collaborative review and assessment as it occurs in e-learning environments. Collaborative review and assessment involves the student, their peers and tutor in thoughtful and critical examination of each student’s course work. The process involves two stages: review and discussion of the student’s work with a view to bringing different critical yet supportive perspectives to the work. This is followed by the use of two sets of criteria to make judgements on the student’s work: one set provided by the student, the other by the tutor. The purpose of collaborative assessment is to foster a learning approach to assessment and to develop a shared power relationship with students. From analysis of face-to-face interviews, examination of e-learning discussions and student-completed questionnaires, a set of analytic categories was built describing the learners’ experiences of collaborative e-assessment. These categories are: (1) the appropriateness of collaborative assessment; (2) collaborative assessment as a learning event; and (3) the focus for assessment. The paper focuses on analysing and discussing these categories of experience. The research shows that a positive social climate is necessary in developing and sustaining collaborative assessment and that this form of assessment helps students to reduce depen-dence on lecturers as the only or major source of judgement about the quality of learning. Students develop skill and know-how about self- and peer assessment and see themselves as competent in making judgements about their own and each other’s work, which are surely good lifelong learning skills

Pensamento crítico: um enfoque na educação de enfermagem Pensamiento crítico: un enfoque en la educación de enfermería Critical thinking: a focus in nursing education

Neste estudo identificamos e analisamos os artigos que apresentavam o termo "pensamento crítico" no título ou no resumo, publicados em periódicos nacionais e internacionais, de julho/1992 a julho/1997. Essa pesquisa bibliográfica buscou responder os questionamentos dos educadores de como melhorar o ensino da enfermagem. Analisamos cinqüenta e dois artigos publicados nos índices Comprehensive Medline, Lilacs e Cinahl. A análise dos dados confirmou que o desenvolvimento do pensamento crítico é uma opção para a mudança do paradigma do processo ensino-aprendizagem. Precisa ser implementado na educação de enfermagem, mas exige planejamento dos currículos e estratégias de ensino que favoreça a participação ativa do aluno.<br>El objetivo de este estudio fue identificar y analizar los artículos publicados en revistas nacionales e internacionales en los últimos cinco años, de julio/1992 a julio/1997, que contenían la expresión "pensamiento crítico" en el título o en su resumen. Realizamos una Investigación bibliográfica buscando responder a las preguntas de los educadores sobre cómo mejorar la enseñaza de Enfermería. Analizamos 52 artículos publicados en los índices Comprehensive Medline, Lilacs e Cinahl. El análisis de los datos demostró que el desarrollo del pensamiento crítico necesita ser materializado en la educación de Enfermería, lo que exige planeación de los currículos y estrategias de enseñanza que favorezcan la participación activa del alumno.<br>In this study we identify and analyse articles published in national and international journals, that used the term "critical thinking" in the title or summary. The aim of the analysis was to seek answers to educators' queries as to how to improve teaching-learning the process in nursing. We analysed 52 articles published in the indexes Comprehensive Medline, Lilacs and Cinahl, in the last five years, from July, 1992 to July, 1997. Data analysis showed that critical thinking should be implemented in nursing education, what demands syllabus planning and teaching-learning strategies that will favour active participation by both educators and learners