A seven-bend-achromat lattice option for the HALF storage ring

The Hefei Advanced Light Facility (HALF) is a soft X-ray diffraction-limited storage ring being designed with an energy of about 2.2 GeV and an emittance goal of less than 100 pm·rad. The present HALF lattice is a modified hybrid six-bend-achromat (6BA) lattice with a long and a short straight section in each cell. In this paper, a 7BA lattice is designed for HALF as a promising option, which follows the main feature of hybrid 7BA lattice, but to have a compact configuration and lower emittance, all bends in this lattice are combined-function bends and reverse bends. The designed HALF storage ring has a circumference of 388.8 m and 20 identical cells. Two solutions with different betatron tunes are studied for this lattice. One with smaller tunes has better nonlinear dynamics performance allowing for off-axis injection, which has a natural emittance of 67 pm·rad. The other with larger tunes has very small beta functions at the straight section as well as lower natural emittance of 59 pm·rad, which can enhance the brightness of insertion device (ID) radiation. The intra-beam scattering effect and ID radiation properties are also presented in this paper.

Professional undergraduate internships as a work insertion device: work modality and hiring.

The article discusses the need to reflect on the educational level related to changes and transformations in the world of work, especially regarding higher education's professional internships. Issues related to preparedness and the legitimation of social institutions are recognized, as well as the recognition of production and work systems. Those are referred to as devices for labor incorporation, as they become scenes to apply disciplinary theories and knowledge, in order to assume problems at real contexts, institutions, and organizations, with conditions associated with “decent or full jobs”. In this case, internships refer to a traditional status job, a concrete project-oriented to ensure a better future, (uncertain) working conditions, and to match with some kind of professional who works fiscally or virtually, collets data, is involved with technological structures, duplicates in networks, is flexible, handles with uncertainty, and works – as an identifiable trend- on precarious paradoxical condition of being a student-worker, characterized as well as a means for the actual re-institutionalization of the world of work as a form to be included and hired. This reflection is based on research experiences and conceptual approximation from academic and applied spaces at professional levels, related to concepts such as Employability in its multi-dimensional sense and includes labor insertion and recognizes the undergraduate professional internships phenomena as a working modality which is being consolidated at re re-institutionalization of the work itself, and ends up legitimating other social spheres of occupational activity that must be discussed beyond curricular and academic aspects exclusively. Finally, undergraduate professional internships are reconfigured as a social space of projection an insertion in and for work.

Low-Cost Haptic Force Needle Insertion Simulator With Advanced Personalized Learning System

Although needle insertion remains a crucial part of medicine practice, there still exists a gap between theoretical knowledge and real-world practice with live patients. To help bridge this gap, the Low-Cost Needle Insertion Simulator, or the LCNIS, is developed to assist students in gaining more confidence through simulated practice. It does so first through its physical design, which include a physical needle insertion device that can give the feeling of puncturing through multiple layers of human flesh. Its user-interface then provides a variety of simulation options as well as performance feedback that can aid in the improvement of student skills. With these key features, the LCNIS hopes to give students a cheap and yet realistic way of practicing needle insertion without the stress and pressure associated with performing on patients. This study hopes to (1) learn about the current needle insertion education as well as gather feedback on the LCNIS prototype, and (2) use this information to construct a more effective user interface for the LCNIS.

I22: SAXS/WAXS beamline at Diamond Light Source – an overview of 10 years operation

Beamline I22 at Diamond Light Source is dedicated to the study of soft-matter systems from both biological and materials science. The beamline can operate in the range 3.7 keV to 22 keV for transmission SAXS and 14 keV to 20 keV for microfocus SAXS with beam sizes of 240 µm × 60 µm [full width half-maximum (FWHM) horizontal (H) × vertical (V)] at the sample for the main beamline, and approximately 10 µm × 10 µm for the dedicated microfocusing platform. There is a versatile sample platform for accommodating a range of facilities and user-developed sample environments. The high brilliance of the insertion device source on I22 allows structural investigation of materials under extreme environments (for example, fluid flow at high pressures and temperatures). I22 provides reliable access to millisecond data acquisition timescales, essential to understanding kinetic processes such as protein folding or structural evolution in polymers and colloids.