Comparisons of Clinical Competency and Job Responsibilities of Physical Therapists With and Without Postprofessional Training.

INTRODUCTION: Understanding how educational pathways may influence clinical competence and work responsibilities is important in providing guidance to academic and clinic stakeholders and physical therapists (PTs) on PT career development. The purpose of this paper was to compare perceived clinical competency and job duties between PTs with formal mentored postprofessional clinical education with PTs without formal postprofessional clinical education. REVIEW OF LITERATURE: The understanding of self-perceived clinical competence of PTs overall in the United States is limited, especially as related to the impact of postprofessional education. Furthermore, there is limited understanding of the career pathways and development of job duties of PTs in the United States. SUBJECTS: Two thousand three hundred thirty-four PTs in the United States. METHODS: An online survey was sent to licensed PTs. This survey included items measuring self-perceived clinical competency and questions related to weekly job responsibilities. Participants were categorized as residency trained, fellowship trained, or non-residency/fellowship trained. Frequency analyses and Kruskal-Wallis tests with pairwise post hoc tests were performed comparing the 3 groups. RESULTS: Residency-trained (P < .007) and fellowship-trained (P < .001) groups demonstrated elements of higher self-perceived clinical competency compared with the non-residency-/fellowship-trained group. Both the residency- and fellowship-trained groups spent less time with patient care and more time with other responsibilities (e.g., teaching, mentoring, and research) (P < .02) during an average workweek. Fellowship-trained PTs (P < .001) spent more time with administrative duties compared with the non-residency-/fellowship-trained group. DISCUSSION AND CONCLUSION: Results from this paper demonstrate that residency- and fellowship-trained PTs have elements of higher self-perceived clinical competency and spend more of their job duties outside of direct patient care compared with PTs who were not residency or fellowship trained. These results may help guide PTs, academic institutions, and employers in planning and achieving specific career paths.

Transient X-ray fragmentation: probing a prototypical photoinduced ring opening.

We report the first study of UV-induced photoisomerization probed via core ionization by an x-ray laser. We investigated x-ray ionization and fragmentation of the cyclohexadiene-hexatriene system at 850 eV during the ring opening. We find that the ion-fragmentation patterns evolve over a picosecond, reflecting a change in the state of excitation and the molecular geometry: the average kinetic energy per ion fragment and H(+)-ion count increase as the ring opens and the molecule elongates. We discuss new opportunities for molecular photophysics created by optical pump x-ray probe experiments.

Strong field ionization to multiple electronic states in water.

High harmonic spectra show that laser-induced strong field ionization of water has a significant contribution from an inner-valence orbital. Our experiment uses the ratio of H(2)O and D(2)O high harmonic yields to isolate the characteristic nuclear motion of the molecular ionic states. The nuclear motion initiated via ionization of the highest occupied molecular orbital (HOMO) is small and is expected to lead to similar harmonic yields for the two isotopes. In contrast, ionization of the second least bound orbital (HOMO-1) exhibits itself via a strong bending motion which creates a significant isotope effect. We elaborate on this interpretation by solving the time-dependent Schrödinger equation to simulate strong field ionization and high harmonic generation from the water isotopes. We expect that this isotope marking scheme for probing excited ionic states in strong field processes can be generalized to other molecules.

High harmonic generation from multiple orbitals in N2.

Molecular electronic states energetically below the highest occupied molecular orbital (HOMO) should contribute to laser-driven high harmonic generation (HHG), but this behavior has not been observed previously. Our measurements of the HHG spectrum of N2 molecules aligned perpendicular to the laser polarization showed a maximum at the rotational half-revival. This feature indicates the influence of electrons occupying the orbital just below the N2 HOMO, referred to as the HOMO-1. Such observations of lower-lying orbitals are essential to understanding subfemtosecond/subangstrom electronic motion in laser-excited molecules.