Validation of minimally invasive articular cartilage sparing technique for olecranon osteotomy.

Background: The authors present a cadaveric validation of a minimally invasive articular cartilage preserving olecranon osteotomy technique for use in the operative management of distal humeral fractures.

Methods: Twenty-four elbows in six male and six female formaldehyde embalmed cadavers were dissected. With the cadaver placed in a lateral decubitus position, a posterior sub-periosteal dissection was performed to the medial and lateral aspects of the olecranon at the level of the joint and Mini Hohmann retractors were inserted into each side of the ulnohumeral joint.

Examining Indigenous Identity as a Protective Factor in Mental Well-Being Research in the United States: A Scoping Review.

Due to historical and ongoing structural racism and settler colonialism, Indigenous Peoples and communities in the United States are at a higher risk for a variety of diseases, elevated stress, and negative mental health outcomes. In addition, the United States federal government and the public encourage a view that Indigenous Peoples are primarily a racial group. Federally-, state-, and un-recognized Indigenous Peoples have a collective right to self-determination and sovereignty, and individuals of these Peoples understand this.

Squeezing the quantum noise of a gravitational-wave detector below the standard quantum limit.

The Heisenberg uncertainty principle dictates that the position and momentum of an object cannot be simultaneously measured with arbitrary precision, giving rise to an apparent limitation known as the standard quantum limit (SQL). Gravitational-wave detectors use photons to continuously measure the positions of freely falling mirrors and so are affected by the SQL. We investigated the performance of the Laser Interferometer Gravitational-Wave Observatory (LIGO) after the experimental realization of frequency-dependent squeezing designed to surpass the SQL.

Quantum Enhanced Balanced Heterodyne Readout for Differential Interferometry.

Conventional heterodyne readout schemes are now under reconsideration due to the realization of techniques to evade its inherent 3 dB signal-to-noise penalty. The application of high-frequency, quadrature-entangled, two-mode squeezed states can further improve the readout sensitivity of audio-band signals. In this Letter, we experimentally demonstrate quantum-enhanced heterodyne readout of two spatially distinct interferometers with direct optical signal combination, circumventing the 3 dB heterodyne signal-to-noise penalty.

Perspectives of HPV vaccination among young adults: a qualitative systematic review and evidence synthesis protocol.

Introduction: Human papillomavirus (HPV) is the causative agent of nearly all cervical cancers. Despite the proven safety and efficacy of HPV vaccines in preventing HPV-related cancers, the global vaccine coverage rate is estimated to only be 15%. HPV vaccine coverage rates are more actively tracked and reported for adolescents 17 years and younger but there is still a critical window of opportunity to intervene and promote HPV vaccination among young adults aged 18-26 years who are still eligible to be vaccinated.