Constrictive pericarditis and rheumatoid nodules with severe aortic incompetence.

The case of a female patient presenting with constrictive rheumatoid pericarditis and aortic incompetence secondary to valvular rheumatoid nodules is described along with a review of the literature with the aim to highlight this rare cause of aortic insufficiency

Inclusive Language Matters: Recommendations for Health Care Providers to Address Implicit Bias and Equitable Health Care

Problem Statement: Stigmatizing language—written and verbal—can fuel implicit bias among health care professionals, leading to unintentional negative effects in how they care for patients. To provide equitable care, health care professionals and systems must become aware of the language they use and learn to replace biased language with inclusive language. Background: The medical field strives to treat all patients equally, yet disparities in health care persist. These disparities are due, in part, to implicit bias that affects how health care professionals and systems care for patients. Although reports recommend developing education programs that address implicit bias, these programs fail to address an important contributor: stigmatizing language used among health care professionals. With guidance, health care professionals and institutions can recognize and replace their biased language to foster more inclusive communication that promotes equitable health care. Application: The AMA Manual of Style outlines standardized inclusive language that health care professionals can use to address bias in their writing, as well as in their clinical practice, teaching, and research. The guide recommends using person-first language, avoiding generalizations and labeling, describing specific details, and being sensitive to the preferences of individuals or groups. The guide also provides detailed recommendations for using inclusive language regarding race/ethnicity, physical or mental condition, sex or gender, sexual orientation, age, and socioeconomic status. With these guidelines, health care providers can replace stigmatizing language to reduce implicit bias and comprehensively address disparities in health care

G(10,30): A Minor-Minimal Intrinsically Knotted Graph

In this paper, we shall lay the groundwork for a proof of the minor-minimal intrinsic knotting of the graph G(10, 30). We show that this graph is in fact minor minimal with respect to the property of intrinsic knotting, i.e that no minor of G(10, 30) is intrinsically knotted. Moreover, we discuss the procedure for showing that G(10, 30) itself is intrinsically knotted, and provide a collection of subgraphs that can be used to aid in a proof. In this way, we hope to contribute to the growing list of known minor-minimal intrinsically knotted graphs

Development of biostereometric experiments

The stereometric camera was designed for close-range techniques in biostereometrics. The camera focusing distance of 360 mm to infinity covers a broad field of close-range photogrammetry. The design provides for a separate unit for the lens system and interchangeable backs on the camera for the use of single frame film exposure, roll-type film cassettes, or glass plates. The system incorporates the use of a surface contrast optical projector

Stereometric body volume measurement

The following studies are reported: (1) effects of extended space flight on body form of Skylab astronauts using biostereometrics; (2) comparison of body volume determinations using hydrostatic weighing and biostereometrics; and (3) training of technicians in biostereometric principles and procedures

Engineering model 8-cm thruster subsystem

An Engineering Model (EM) 8 cm Ion Thruster Propulsion Subsystem was developed for operation at a thrust level 5 mN (1.1 mlb) at a specific impulse 1 sub sp = 2667 sec with a total system input power P sub in = 165 W. The system dry mass is 15 kg with a mercury-propellant-reservoir capacity of 8.75 kg permitting uninterrupted operation for about 12,500 hr. The subsystem can be started from a dormant condition in a time less than or equal to 15 min. The thruster has a design lifetime of 20,000 hr with 10,000 startup cycles. A gimbal unit is included to provide a thrust vector deflection capability of + or - 10 degrees in any direction from the zero position. The EM subsystem development program included thruster optimization, power-supply circuit optimization and flight packaging, subsystem integration, and subsystem acceptance testing including a cyclic test of the total propulsion package

Advanced Diagnostics for the Study of Linearly Polarized Emission. II: Application to Diffuse Interstellar Radio Synchrotron Emission

Diagnostics of polarized emission provide us with valuable information on the Galactic magnetic field and the state of turbulence in the interstellar medium, which cannot be obtained from synchrotron intensity alone. In Paper I (Herron et al. 2017b), we derived polarization diagnostics that are rotationally and translationally invariant in the $Q$-$U$ plane, similar to the polarization gradient. In this paper, we apply these diagnostics to simulations of ideal magnetohydrodynamic turbulence that have a range of sonic and Alfv\'enic Mach numbers. We generate synthetic images of Stokes $Q$ and $U$ for these simulations, for the cases where the turbulence is illuminated from behind by uniform polarized emission, and where the polarized emission originates from within the turbulent volume. From these simulated images we calculate the polarization diagnostics derived in Paper I, for different lines of sight relative to the mean magnetic field, and for a range of frequencies. For all of our simulations, we find that the polarization gradient is very similar to the generalized polarization gradient, and that both trace spatial variations in the magnetoionic medium for the case where emission originates within the turbulent volume, provided that the medium is not supersonic. We propose a method for distinguishing the cases of emission coming from behind or within a turbulent, Faraday rotating medium, and a method to partly map the rotation measure of the observed region. We also speculate on statistics of these diagnostics that may allow us to constrain the physical properties of an observed turbulent region.Comment: 34 pages, 25 figures, accepted for publication in Ap