Multipartite Entanglement in a Microwave Frequency Comb.

Significant progress has been made with multipartite entanglement of discrete qubits, but continuous variable systems may provide a more scalable path toward entanglement of large ensembles. We demonstrate multipartite entanglement in a microwave frequency comb generated by a Josephson parametric amplifier subject to a bichromatic pump. We find 64 correlated modes in the transmission line using a multifrequency digital signal processing platform.

How Relationship Satisfaction and Negative Communication Trajectories Change in Emerging Adults' Dating Relationships: A Group-Based Dual Trajectory Analysis.

Early romantic relationships are salient to the development of healthy future relationships. Yet, little is known about the evolution of romantic relationships of emerging adults since most of the research has been conducted on married or well-established couples. The current study aims to examine how relationship satisfaction and negative communication evolve and are interrelated during emerging adulthood.

Calibration of mixer amplitude and phase imbalance in superconducting circuits.

An important device for modulation and frequency translation in the field of circuit quantum electrodynamics is the in-phase and quadrature mixer, an analog component for which calibration is necessary to achieve optimal performance. In this paper, we introduce techniques originally developed for wireless communication applications to calibrate upconversion and downconversion mixers. A Kalman filter together with a controllable carrier frequency offset calibrates both mixers without removing them from the embedding measurement infrastructure.

Spousal Support and Relationship Happiness in Adults With Type 2 Diabetes and Their Spouses.

Objectives: The purpose of this study was to examine the association between the perceptions of spousal support self-efficacy in terms of dietary self-care and relationship happiness.

Methods: Forty-six couples, in which only one spouse has type 2 diabetes, completed questionnaires on perceptions of spousal support self-efficacy and relationship happiness.

Results: Using an actor‒partner interdependence model, we found that, when persons with type 2 diabetes were more confident in their spouse's ability to provide them with support regarding their dietary self-care, they reported more relationship happiness.

Cardiac arrest in Saudi Arabia: a 7-year experience in Riyadh.

All out-of-hospital and Emergency Department (ED) cardiac arrests treated at a tertiary care hospital in Riyadh, Saudi Arabia, from 1989 through 1995 were studied. Of patients arresting out-of-hospital, 3.0% received bystander cardiopulmonary resuscitation (CPR), 9.

Infrared emission detection tympanic thermometry may be useful in diagnosing acute otitis media.

To determine the utility of infrared emission detection (IRED) tympanic thermometry in diagnosing acute suppurative otitis media (ASOM), a prospective, nonblinded sampling of ear temperatures was performed. Children between the ages of 6 months and 6 years presenting to an urban emergency department were included in the study. Tympanic temperatures were determined in all subjects.

Invasive thymoma presenting as aortic dissection.

We report the case of an invasive thymoma presenting as an aortic dissection in a 49-year-old woman with hypertension and a marfanoid appearance. The patient presented to the emergency department with "tearing" substernal chest pain. A chest radiograph revealed a right para-aortic bulge consistent with a dissecting aorta, but an aortogram was normal.