Sensitivity of a vector atomic magnetometer based on electromagnetically induced transparency.

We present a realization of a magnetic sensor based on electromagnetically induced transparency (EIT) resonances observed in hot Rb vapor using lin∥lin polarized dichromatic light and evaluate scalar and vector capabilities of the sensor for measuring Earth-like magnetic fields. We demonstrate scalar measurement sensitivity of 2 / in the 1-100 Hz spectral frequency band using a ~1 cm Rb vapor cell, significantly improving the performance for such a configuration if compared with earlier measurements of large magnetic fields. By using a single linearly polarized dichromatic optical field, we are also able to determine the direction of the magnetic field with respect to the light propagation direction and polarization, taking advantage of the symmetries of the interaction scheme.

Memory T-Cells Contribute to Calcium Release from Bones during Lactation in Mice.

Milk production during lactation places a high demand for calcium that is fulfilled both from maternal bone resorption and diet. While it is known that mammary gland-derived PTHrP drives bone resorption during lactation, the impact of postpartum estrogen loss on bone has been unclear. We used a case-control study design to test the effect of estrogen loss in lactating mice.

Impaired diffusing capacity and COPD incidence in adults with symptoms and normal spirometry.

Background: Impaired diffusing capacity of the lung (DLCO) in the absence of post-bronchodilator (BD) airflow obstruction has been proposed as a marker of 'Pre-COPD'. However, the relationship between impaired DLCO and subsequent lung function decline and COPD incidence has not been examined in-depth.

Methods: We conducted an observational study of adults aged between 40 and 70 years who were evaluated at a multi-centre lung function laboratory in Australia between 2014 and 2024.

The COVID-19 pandemic and its impact on the development of gestational diabetes mellitus (GDM) in West Virginia.

Objective: To examine the rate of gestational diabetes mellitus (GDM) prevalence before and during the COVID-19 pandemic.

Results: Analysis revealed that GDM prevalence was significantly higher during the COVID-19 pandemic compared to pre-pandemic (8.59 % vs 7.