Envisioning the future of aquatic animal tracking: Technology, science, and application

Electronic tags are significantly improving our understanding of aquatic animal behavior and are emerging as key sources of information for conservation and management practices. Future aquatic integrative biology and ecology studies will increasingly rely on data from electronic tagging. Continued advances in tracking hardware and software are needed to provide the knowledge required by managers and policymakers to address the challenges posed by the world's changing aquatic ecosystems. We foresee multiplatform tracking systems for simultaneously monitoring the position, activity, and physiology of animals and the environment through which they are moving. Improved data collection will be accompanied by greater data accessibility and analytical tools for processing data, enabled by new infrastructure and cyberinfrastructure. To operationalize advances and facilitate integration into policy, there must be parallel developments in the accessibility of education and training, as well as solutions to key governance and legal issues

Trends in autoionization of Rydberg states converging to the 4s threshold in the Kr-Rb⁺-Sr²⁺ isoelectonic sequence: theory and experiment

We have measured the photoabsorption spectra of the Kr-like ions Rb+ and Sr2+ at photon energies corresponding to the excitation of 4s-np resonances using, the dual laser plasma photoabsorption technique. Dramatic changes in the line profiles, with increasing ionization and also proceeding along the Rydberg series of each ion, are observed and explained by the trends in 4s-transition amplitudes computed within a framework of configuration-interaction Pauli-Fock calculations. Total photoionization cross sections show very good agreement with relative absorption data extracted from the measured spectra

The ELFIN mission

The Electron Loss and Fields Investigation with a Spatio-Temporal Ambiguity-Resolving option (ELFIN-STAR, or heretoforth simply: ELFIN) mission comprises two identical 3-Unit (3U) CubeSats on a polar (∼93∘ inclination), nearly circular, low-Earth (∼450 km altitude) orbit. Launched on September 15, 2018, ELFIN is expected to have a >2.5 year lifetime. Its primary science objective is to resolve the mechanism of storm-time relativistic electron precipitation, for which electromagnetic ion cyclotron (EMIC) waves are a prime candidate. From its ionospheric vantage point, ELFIN uses its unique pitch-angle-resolving capability to determine whether measured relativistic electron pitch-angle and energy spectra within the loss cone bear the characteristic signatures of scattering by EMIC waves or whether such scattering may be due to other processes. Pairing identical ELFIN satellites with slowly-variable along-track separation allows disambiguation of spatial and temporal evolution of the precipitation over minutes-to-tens-of-minutes timescales, faster than the orbit period of a single low-altitude satellite (Torbit ∼ 90 min). Each satellite carries an energetic particle detector for electrons (EPDE) that measures 50 keV to 5 MeV electrons with Δ E/E 1 MeV. This broad energy range of precipitation indicates that multiple waves are providing scattering concurrently. Many observed events show significant backscattered fluxes, which in the past were hard to resolve by equatorial spacecraft or non-pitch-angle-resolving ionospheric missions. These observations suggest that the ionosphere plays a significant role in modifying magnetospheric electron fluxes and wave-particle interactions. Routine data captures starting in February 2020 and lasting for at least another year, approximately the remainder of the mission lifetime, are expected to provide a very rich dataset to address questions even beyond the primary mission science objective.Published versio

Promotion of evidence-based practice by professional nursing associations: literature review.

Contains fulltext : 49833.pdf (publisher's version ) (Closed access)AIM: This paper reports a literature review examining the activities of professional nursing associations in the promotion of evidence-based practice. BACKGROUND: Professional nursing associations can play a role in the implementation and achievement of evidence-based practice as such associations aim to develop and further educate nurses professionally, build professional networks representing the interests of nurses and the nursing profession, influence the government and policymakers, and support and protect the basic values of nurses. The exact role of professional nursing associations in the promotion of evidence-based practice is as yet unclear, along with just how the role of such associations can be expanded and which strategies can be used to promote evidence-based practice among members. METHOD: A literature and Internet search was undertaken using the PUBMED, CINAHL, SCIRUS, INVERT, and the Cochrane databases using the terms evidence-based practice(s)* or EBP*, which were then combined with Nursing Society*, Nursing Organization*, Nursing Organisation*, Nursing Association* or Nursing Council*. Other sources included a Google search of the Internet, and the sites of various members of the International Council of Nurses. Publications in English, French or German from 1993 to 2004 were used, and the Internet search was conducted on 17 July 2003. RESULTS: Sixty nursing associations described the dissemination of evidence-based practice using one or more types of activities (179 activities in total). All of these activities were of a voluntary nature, with a predominant focus (132/179 activities) on intrinsic motivation of nurses. More specifically, most of the activities were aimed at nurses' competences and attitudes in relation to evidence-based practice. CONCLUSION: Professional nurses' associations are active in promoting evidence-based practice among their nurse members, but only those focusing on changing competences and attitude by addressing intrinsic motivation are well used. Other types of activities deserve to be explored, including behaviour-oriented approaches, approaches using structural, social or financial influence measures and perhaps methods based on 'involuntary involvement'