A high-resolution in situ X-ray diffraction study of mineral transitions due to post-hydration heating in CM chondrite meteorites.

Abstract: The effects of post-hydration heating over a broad range of temperatures are evident in many Mighei-like carbonaceous (CM) chondrites as a variety of mineral transitions. To better understand these processes and how a CM chondrite's starting composition may have affected them, we experimentally heated two meteorites with different degrees of aqueous alteration, Allan Hills 83100 and Murchison, at 25 °C temperature steps from 200 °C to 950 °C and 300 °C to 750 °C, respectively. During heating, synchrotron in situ X-ray diffraction patterns were collected.

Sex- and brain region-specific alterations in brain volume in germ-free mice.

Several lines of evidence demonstrate that microbiota influence brain development. Using high-resolution magnetic resonance imaging (MRI), this study examined the impact of microbiota status on brain volume and revealed microbiota-related differences that were sex and brain region dependent. Cortical and hippocampal regions demonstrate increased sensitivity to microbiota status during the first 5 weeks of postnatal life, effects that were greater in male germ-free mice.

Novel Drop-Sampler for Simultaneous Collection of Stereo-Video, Environmental DNA and Oceanographic Data.

There is an increasing interest in environmental DNA (eDNA) as a method to survey marine biota, enhancing traditional survey methods, and a need to ground truth eDNA-based interpretations with visual surveys to understand biases in both the eDNA and visual datasets. We designed and tested a rapidly deployable, robust method pairing water sampling for eDNA collection and stereo-video imagery, comparing inferred fish assemblages with interspersed baited remote underwater video (stereo-BRUV) samples. The system is capable of rapidly collecting simultaneous wide-field stereo-video imagery, oceanographic measurements and multiple water samples across a range of habitats and depths (up to 600 m).

Treatment of a high-volume retroperitoneal lymphocele with obstructive hydronephrosis following lymph node dissection via combined intra-lymphocele retrograde lymphangiography with glue embolization and sclerotherapy.

Management of symptomatic lymphoceles typically involves sclerotherapy and lymphangiography with embolization. When many afferent lymphatic channels are supplying a large-volume lymphocele, sclerotherapy is associated with high recurrence rate. This case presents a patient who underwent retroperitoneal lymph node dissection and developed a high-volume lymphocele that was compressing the ipsilateral ureter, causing hydronephrosis.

Comparison of clinical and abdominal CT imaging findings in children evaluated for abusive and accidental abdominal trauma.

Background: Diagnosis of child abuse in children evaluated for a blunt abdominal trauma can be challenging due to overlapping types of injuries.

Objective: Identify clinical characteristics and CT findings that differentiate children evaluated for accidental abdominal trauma (AcAT) and abusive abdominal trauma (AbAT).

Materials And Methods: Retrospective (1/2010 to 6/2024) study on children < 3 years-old who had an abdominal CT scan for AcAT or AbAT.