What Are Nursing Attitudes to Youth Who Engage in Self-Harm? An Integrative Review.

This integrative review explored nursing assessment of youth who self-harm. Eleven papers published between 2000 to 2020 met inclusion criteria. Three themes emerged: "Doctors and nurses' perceptions of assessment of self-harm", "Attitudes and experiences of assessment of self-harm" and "Assessments and outcomes". The ways youth communicate is an important consideration when assessing and planning for care. The metaphor of Narcissus is used to understand youth beliefs, self-image and how they communicate these thoughts. This paper suggests an alternative reading of what young people, who presents with self-harm, are trying to communicate to others and how this is integrated into assessment.

Weak Broadband Electromagnetic Fields are More Disruptive to Magnetic Compass Orientation in a Night-Migratory Songbird (Erithacus rubecula) than Strong Narrow-Band Fields.

Magnetic compass orientation in night-migratory songbirds is embedded in the visual system and seems to be based on a light-dependent radical pair mechanism. Recent findings suggest that both broadband electromagnetic fields ranging from ~2 kHz to ~9 MHz and narrow-band fields at the so-called Larmor frequency for a free electron in the Earth's magnetic field can disrupt this mechanism. However, due to local magnetic fields generated by nuclear spins, effects specific to the Larmor frequency are difficult to understand considering that the primary sensory molecule should be organic and probably a protein. We therefore constructed a purpose-built laboratory and tested the orientation capabilities of European robins in an electromagnetically silent environment, under the specific influence of four different oscillating narrow-band electromagnetic fields, at the Larmor frequency, double the Larmor frequency, 1.315 MHz or 50 Hz, and in the presence of broadband electromagnetic noise covering the range from ~2 kHz to ~9 MHz. Our results indicated that the magnetic compass orientation of European robins could not be disrupted by any of the relatively strong narrow-band electromagnetic fields employed here, but that the weak broadband field very efficiently disrupted their orientation.

Versatile high-repetition-rate phase-locked chopper system for fast timing experiments in the vacuum ultraviolet and x-ray spectral region.

A novel light chopper system for fast timing experiments in the vacuum-ultraviolet (VUV) and x-ray spectral region has been developed. It can be phase-locked and synchronized with a synchrotron radiation storage ring, accommodating repetition rates in the range of ~8 to ~120 kHz by choosing different sets of apertures and subharmonics of the ring frequency (MHz range). Also the opening time of the system can be varied from some nanoseconds to several microseconds to meet the needs of a broad range of applications. Adjusting these parameters, the device can be used either for the generation of single light pulses or pulse packages from a microwave driven, continuous He gas discharge lamp or from storage rings which are otherwise often considered as quasi-continuous light sources. This chopper can be utilized for many different kinds of experiments enabling, for example, unambiguous time-of-flight (TOF) multi-electron coincidence studies of atoms and molecules excited by a single light pulse as well as time-resolved visible laser pump x-ray probe electron spectroscopy of condensed matter in the valence and core level region.

Exploring the mental health nurse practitioner scope of practice in youth early psychosis: an anecdotal account.

The development of the Victorian mental health nurse practitioner youth early psychosis, is a pioneer advance in clinical psychiatric/mental health nursing. This paper will explore and describe the scope of practice for the youth early psychosis mental health nurse practitioner candidate, and how the model is informed by relevant literature. The role description and context of the nurse practitioner candidate, which is synonymous with the role of the endorsed nurse practitioner, is described. Advanced practice nursing is discussed in terms of what the nurse practitioner literature says and contrasted with perceptions of a clinical nurse's everyday practice. Inherent challenges and issues are highlighted that need to sit in the background of any picture being painted of the mental health nurse practitioner role in Victoria into the future. An alternative perspective in the mental health care of the young person is proposed for the nurse practitioner scope of practice.

Radiofrequency polarization effects in zero-field electron paramagnetic resonance.

Optically detected zero-field electron paramagnetic resonance spectroscopy is used to show that weak linearly and circularly polarized radiofrequency magnetic fields affect the recombination reactions of spin-correlated radical pairs to different extents; the spectra are shown to be consistent with the radical pair mechanism.

Radiofrequency polarization effects in low-field electron paramagnetic resonance.

Low-field optically detected EPR spectra of photochemically formed transient radical ion pairs are reported for weak circularly and linearly polarized radiofrequency (RF) fields. The spectra are found to be strongly dependent on the polarization and frequency of the RF field and on the angle between the static magnetic field and the plane containing the RF field. The spectra are discussed in terms of resonances arising from Zeeman and hyperfine interactions; the conditions for validity of the rotating frame approximation are determined. Knowledge of the latter is important when using low-field EPR as a diagnostic test for the operation of the radical pair mechanism.