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PurposeThe purpose of the scoping study was to understand the experiences of refugees with disabilities and their families in the US from expert service-provider perspectives, including gaps in resources and services. The authors also investigated challenges and opportunities for technology intervention in this space.Design/methodology/approachThe authors conducted semi-structured interviews with six experts who serve refugees in the United States. The authors asked them about the experiences of refugees with disabilities and their families and inquired into challenges and opportunities for technology access for this population.FindingsThe authors found that refugees and their families are significantly impacted by disabilities and mental health challenges. Additionally, while refugees have access to resources and services, they face a number of structural barriers, including the need to navigate a complex healthcare system, geographic placements that sometimes make it difficult to access employment or healthcare services, and issues with accessing public transit.Research limitations/implicationsThe main limitation of the current study is that the authors did not collect data directly from refugees with disabilities.Practical implicationsThe authors offer several directions for practical improvements based on the findings, including improving structural support for refugees with disabilities and incentivizing health care providers utilizing more culturally aware language services.Originality/valueWhile the number of refugees worldwide has doubled in the past decade and there is consensus that a significant number of refugees experience disabilities and mental health challenges, few projects have looked into the technology needs of refugees with disabilities. The exploratory study provides population-level insights on the experiences and accessibility barriers of refugees with disabilities in the United States.

Most arachnid fertilization occurs internally, allowing for a variety of post-copulatory mechanisms to take place. Females are expected to exert some level of control over sperm fate when 1) the point of gametic fusion is particularly distant from the point of oogenesis, 2) the time of syngamy is significantly later than the time of mating, 3) sperm are non-motile, and/or 4) the morphology of females allows for selective containment of sperm. Many of these conditions are met in Opiliones (a.k.a. “harvesters,” “harvestmen,” or “daddy-longlegs”), where we have evidence of sexual antagonism, multiple mating, and delayed oviposition for a number of species. We used confocal laser scanning microscopy to capture and analyze images of harvester spermathecae, structures within the genitalia of female arthropods that store and maintain sperm after copulation. Spermathecal morphology may have critical function in controlling seminal movement. We anticipated that species with previously identified traits associated with sexual antagonism would also have thicker and/or relatively more complex spermathecae. We examined spermathecal morphology in thirteen species of Leiobunum and one species of Hadrobunus, which were collected from North America and Japan. Our results show that eight species had structures consisting of a single chamber with no or partial invagination, and the remainder had multiple cuticular invaginations producing 2-3 lumina within the spermathecae. Using phylogenetic multivariate comparative methods, we estimated a trend towards cross-correlation between conflict and spermathecal traits. Some, but not all, of the species with thicker, more complex spermathecae had morphological traits associated with sexual conflict (larger body size, thicker genital muscle). In conclusion, we discuss methods to elucidate spermathecal mechanism and sperm precedence in these species. Confocal microscopy allowed us to visualize internal structures difficult to interpret with two-dimensional brightfield microscopy, a technique that could be applied to the characterization of internal reproductive structures in other arthropods.

Annuloplasty ring choice and design are critical to the long-term efficacy of mitral valve (MV) repair. DynaRing is a selectively compliant annuloplasty ring composed of variable stiffness elastomer segments, a shape-set nitinol core, and across diameter filament. The ring provides sufficient stiffness to stabilize a diseased annulus while allowing physiological annular dynamics. Moreover, adjusting elastomer properties provides a mechanism for effectively tuning key MV metrics to specific patients. We evaluate the ring embedded in porcine valves with an ex-vivo left heart simulator and per-form a 150 million cycle fatigue test via a custom oscillatory system. We present a patient-specific design approach for determining ring parameters using a finite element model optimization and patient MRI data. Ex-vivo experiment results demonstrate that motion of DynaRing closely matches literature values for healthy annuli. Findings from the patient-specific optimization establish DynaRing's ability to adjust AP and IC diameters and saddle height by up to 8.8%, 5.6%, 19.8%, respectively and match a wide range of patient data.

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