13 research outputs found

    Gender Differences in Social Support, Self-Salience, and Mental Health

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    Men and women tend to manifest distinct mental health outcomes. Specifically, women report higher levels of internalizing symptoms, such as depression and anxiety, whereas men report higher levels externalizing symptoms, such as alcohol abuse (Rosenfield, S., Lennon, M. C., & White, H. R., 2005; Rosenfield, S., & Smith, D., 2010). However, it is unclear what mechanisms shape the gender differences in mental health outcomes. This research will explore two key possible mechanisms: social support and self-salience. Our aims in this study are to examine how and why mental health outcomes vary by gender? And also to what extent do social support and self-salience explain the gender differences in various mental health outcomes? We hypothesized that women will have more social support resources than men. Lower social support among men will further explain their higher externalizing symptoms compared to women. For self-salience, we expected that men will prioritize their own needs above other’s needs and have less permeable boundaries between their self and others. Furthermore, we hypothesized that differences in self-salience by gender will explain women’s higher internalizing symptoms compared to men. Based on The National, Health, Well-being and Perspectives Study survey data of 705 respondents, we found that women have higher social support (companionship and emotional support) compared to men, supporting the hypothesis. However, these differences only partially mediate men’s higher levels of externalizing symptoms. Results revealed that men are less likely than women to let other people\u27s emotion and experiences affect their own. These differences also partially mediate women’s higher levels of internalizing symptoms. This research will help us better understand the processes leading to different mental health outcomes for men and women and provide insights into reducing mental health problems in the United States

    Gender Differences in Social Support, Self-Salience, and Mental Health

    Get PDF
    Men and women tend to manifest distinct mental health outcomes. Specifically, women report higher levels of internalizing symptoms, such as depression and anxiety, whereas men report higher levels externalizing symptoms, such as alcohol abuse (Rosenfield, S., Lennon, M. C., & White, H. R., 2005; Rosenfield, S., & Smith, D., 2010). However, it is unclear what mechanisms shape the gender differences in mental health outcomes. This research will explore two key possible mechanisms: social support and self-salience. Our aims in this study are to examine how and why mental health outcomes vary by gender? And also to what extent do social support and self-salience explain the gender differences in various mental health outcomes? We hypothesized that women will have more social support resources than men. Lower social support among men will further explain their higher externalizing symptoms compared to women. For self-salience, we expected that men will prioritize their own needs above other’s needs and have less permeable boundaries between their self and others. Furthermore, we hypothesized that differences in self-salience by gender will explain women’s higher internalizing symptoms compared to men. Based on The National, Health, Well-being and Perspectives Study survey data of 705 respondents, we found that women have higher social support (companionship and emotional support) compared to men, supporting the hypothesis. However, these differences only partially mediate men’s higher levels of externalizing symptoms. Results revealed that men are less likely than women to let other people\u27s emotion and experiences affect their own. These differences also partially mediate women’s higher levels of internalizing symptoms. This research will help us better understand the processes leading to different mental health outcomes for men and women and provide insights into reducing mental health problems in the United States

    Polyether Plant Design

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    In recent years, the global market for polyethers has seen rapid expansion due to the growth of the construction, automobile, and foam industries. Polyethers are principally sold to polyurethane plants to produce a wide range of flexible and rigid foams that are used in a wide range of applications from automotive upholstery to inks. Consequently, the process for manufacturing polyethers is extremely vital to the consumer goods market and for maintaining the quality of life to which many people have grown accustomed. In this report, a plant has been designed in the Asia-Pacific region to produce 100 million pounds of a 3,000 g/mol polyether polymer per year. The process consists of five main steps: reaction, initiation, addition of propylene oxide (PO), elongation of the growing polymer chain, purification of polyether, and stabilization of polyether. The key features in this process design include a pre-reactor for activating our glycerin initiator, two reactor vessels in series for the polymerization, and a continuous gravity decanter catalyst removal system. Multiple safety features were also implemented, including vessel purging and pressurized reactors to avoid leaks and keep PO in the liquid phase. Ultimately, our design produces three batches per day of 101,000 lbs of polyether for 330 operating days. Finally, using a three-pass water wash with 90% catalyst removal in each pass, the final purity of our polyether with respect to potassium is 0.9 ppm. The profitability analysis for the current design estimates an NPV of $30,378,100 and an IRR of 53.40%. The return on investment is 51.01%. Sensitivity analyses to operating cost and profit showed that the plant is robust even amidst market fluctuations, and the project is a profitable endeavor

    Novel frameless LINAC radiosurgery solution for uveal melanoma

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    IntroductionRadiation treatment has replaced enucleation as an organ-preservation treatment for patients with uveal melanoma (UM). We developed a novel non-invasive, frameless LINAC based solution for fractionated stereotactic radiosurgery (fSRS) treatment.MethodsWe designed and constructed the a stereotactic ocular localization box that can be attached and indexed to a stereotactic LINAC tabletop. It contains adjustable LED lights as a gaze focus point and CCD camera for monitoring of the patient’s eye position. The device also has 6 infrared spheres compatible with the ExacTRAC IGRT system. Treatment plans were developed using iPLAN Dose version 4.5, with conformal dynamic arcs and 6MV photon beam in flattening filter free mode, dosed to 50Gy in 5 fractions. During treatment, patients were instructed to stare at the light when a radiation beam is prepared and ready for delivery. Eye movement was tracked throughout treatment. Residual setup errors were recorded for evaluation.ResultsThe stereotactic ocular localization box was 3D-printed with polylactic acid material and attached to the stereotactic LINAC tabletop. 10 patients were treated to evaluate the feasibility, tolerability and setup accuracy. Median treatment time for each arc is 17.3 ± 2.4 seconds (range: 13.8-23.4). After ExacTRAC setup, the residual setup errors are -0.1 ± 0.3 mm laterally, -0.1 ± 0.3 mm longitudinally, and 0 ± 0.2 mm vertically. The residue rotational errors are -0.1 ± 0.3 degree pitch, 0.1 ± 0.2 degree roll, and 0 ± 0.2 degree couch rotation. All patients received treatment successfully.ConclusionWe successfully developed a novel non-invasive frameless mask-based LINAC solution for SRS for uveal melanoma, or other ocular tumors. It is well tolerated with high set up accuracy. Future directions for this localization box would include a multi-center trial to assess the efficacy and reproducibility in the fabrication and execution of such a solution for UM therapy

    Novel Frameless LINAC Radiosurgery Solution for Uveal Melanoma

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    INTRODUCTION: Radiation treatment has replaced enucleation as an organ-preservation treatment for patients with uveal melanoma (UM). We developed a novel non-invasive, frameless LINAC based solution for fractionated stereotactic radiosurgery (fSRS) treatment. METHODS: We designed and constructed the a stereotactic ocular localization box that can be attached and indexed to a stereotactic LINAC tabletop. It contains adjustable LED lights as a gaze focus point and CCD camera for monitoring of the patient\u27s eye position. The device also has 6 infrared spheres compatible with the ExacTRAC IGRT system. Treatment plans were developed using iPLAN Dose version 4.5, with conformal dynamic arcs and 6MV photon beam in flattening filter free mode, dosed to 50Gy in 5 fractions. During treatment, patients were instructed to stare at the light when a radiation beam is prepared and ready for delivery. Eye movement was tracked throughout treatment. Residual setup errors were recorded for evaluation. RESULTS: The stereotactic ocular localization box was 3D-printed with polylactic acid material and attached to the stereotactic LINAC tabletop. 10 patients were treated to evaluate the feasibility, tolerability and setup accuracy. Median treatment time for each arc is 17.3 ± 2.4 seconds (range: 13.8-23.4). After ExacTRAC setup, the residual setup errors are -0.1 ± 0.3 mm laterally, -0.1 ± 0.3 mm longitudinally, and 0 ± 0.2 mm vertically. The residue rotational errors are -0.1 ± 0.3 degree pitch, 0.1 ± 0.2 degree roll, and 0 ± 0.2 degree couch rotation. All patients received treatment successfully. CONCLUSION: We successfully developed a novel non-invasive frameless mask-based LINAC solution for SRS for uveal melanoma, or other ocular tumors. It is well tolerated with high set up accuracy. Future directions for this localization box would include a multi-center trial to assess the efficacy and reproducibility in the fabrication and execution of such a solution for UM therapy

    The effect of aging on cell migration and mechanosensation

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    Aged cells experience a variety of changes in migration and mechanosensation. These differences have important implications for wound healing, and fibrosis. In this study, it has been observed that young cells travel faster in confinement in both PDMS devices and 13 kPa hydrogel devices. However, when placed on softer 7 kPa gels, the old cells speeds matched that of the young cells due to reductions in myosin II-mediated contractility and focal adhesions. This study had also seen a downregulation in TRPV4 ion channels in old cells, which seem to cause old cells to be less responsive to calcium chelation and physical cues including 2D stiffness changes and shear flow

    The effect of aging on cell migration and mechanosensation

    No full text
    Aged cells experience a variety of changes in migration and mechanosensation. These differences have important implications for wound healing, and fibrosis. In this study, it has been observed that young cells travel faster in confinement in both PDMS devices and 13 kPa hydrogel devices. However, when placed on softer 7 kPa gels, the old cells speeds matched that of the young cells due to reductions in myosin II-mediated contractility and focal adhesions. This study had also seen a downregulation in TRPV4 ion channels in old cells, which seem to cause old cells to be less responsive to calcium chelation and physical cues including 2D stiffness changes and shear flow

    Molecular regulation of the salicylic acid hormone pathway in plants under changing environmental conditions

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    Salicylic acid (SA) is a central plant hormone mediating immunity, growth, and development. Recently, studies have highlighted the sensitivity of the SA pathway to changing climatic factors and the plant microbiome. Here we summarize organizing principles and themes in the regulation of SA biosynthesis, signaling, and metabolism by changing abiotic/biotic environments, focusing on molecular nodes governing SA pathway vulnerability or resilience. We especially highlight advances in the thermosensitive mechanisms underpinning SA-mediated immunity, including differential regulation of key transcription factors (e.g., CAMTAs, CBP60g, SARD1, bHLH059), selective protein–protein interactions of the SA receptor NPR1, and dynamic phase separation of the recently identified GBPL3 biomolecular condensates. Together, these nodes form a biochemical paradigm for how the external environment impinges on the SA pathway

    Aligning academic career management in the evolving landscape of Cambodian public universities

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    Purpose: this study examines the management practices and alignment features needed to develop academic staff’s careers, mainly focusing on teaching competencies in the evolving landscape of Cambodian public universities.Design/methodology/approach: a multiple-case research design was adopted to collect data from interviews with 11 academic leaders and focus-group discussions (FGDs) with 13 academic teachers at two public universities in provincial Cambodia. A thematic approach was performed to code and analyse data to address the research questions.Findings: this study found that the management of academic careers in the selected universities was hybrid, deregulating state control to relative institutional autonomy for contracted employees but rather centralised management for civil servants. However, weak institutional leadership and negligence in formulating comprehensive institutional guidelines for strategic human resource management (HRM) have caused misalignments of management practices to develop academic careers in the studied contexts.Research limitations/implications: this case study limits its findings to two universities in provincial Cambodia. Nevertheless, this study adds to the scarce literature on the research topic in Cambodian public universities and opens a path for cross-institutional and national comparative studies on similar foci.Originality/value: this is a ground-breaking study set in the evolving space of Cambodian public higher education, where attention to the research area remains limited.</p

    The architecture of a feasibility query portal for distributed COVID-19 fast healthcare interoperability resources (FHIR) patient data repositories: design and implementation study

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    Background: An essential step in any medical research project after identifying the research question is to determine if there are sufficient patients available for a study and where to find them. Pursuing digital feasibility queries on available patient data registries has proven to be an excellent way of reusing existing real-world data sources. To support multicentric research, these feasibility queries should be designed and implemented to run across multiple sites and securely access local data. Working across hospitals usually involves working with different data formats and vocabularies. Recently, the Fast Healthcare Interoperability Resources (FHIR) standard was developed by Health Level Seven to address this concern and describe patient data in a standardized format. The Medical Informatics Initiative in Germany has committed to this standard and created data integration centers, which convert existing data into the FHIR format at each hospital. This partially solves the interoperability problem; however, a distributed feasibility query platform for the FHIR standard is still missing. Objective: This study described the design and implementation of the components involved in creating a cross-hospital feasibility query platform for researchers based on FHIR resources. This effort was part of a large COVID-19 data exchange platform and was designed to be scalable for a broad range of patient data. Methods: We analyzed and designed the abstract components necessary for a distributed feasibility query. This included a user interface for creating the query, backend with an ontology and terminology service, middleware for query distribution, and FHIR feasibility query execution service. Results: We implemented the components described in the Methods section. The resulting solution was distributed to 33 German university hospitals. The functionality of the comprehensive network infrastructure was demonstrated using a test data set based on the German Corona Consensus Data Set. A performance test using specifically created synthetic data revealed the applicability of our solution to data sets containing millions of FHIR resources. The solution can be easily deployed across hospitals and supports feasibility queries, combining multiple inclusion and exclusion criteria using standard Health Level Seven query languages such as Clinical Quality Language and FHIR Search. Developing a platform based on multiple microservices allowed us to create an extendable platform and support multiple Health Level Seven query languages and middleware components to allow integration with future directions of the Medical Informatics Initiative. Conclusions: We designed and implemented a feasibility platform for distributed feasibility queries, which works directly on FHIR-formatted data and distributed it across 33 university hospitals in Germany. We showed that developing a feasibility platform directly on the FHIR standard is feasible
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