563 research outputs found

    The K186E amino acid substitution in the canine influenza virus H3N8 NS1 protein restores its ability to inhibit host gene expression

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    Canine influenza viruses (CIVs) are the causative agents of canine influenza, a contagious respiratory disease in dogs, and include the equine-origin H3N8 and the avian-origin H3N2. Influenza A virus (IAV) non-structural protein 1 (NS1) is a virulence factor essential for counteracting the innate immune response. Here, we evaluated the ability of H3N8 CIV NS1 to inhibit host innate immune responses. We found that H3N8 CIV NS1 was able to efficiently counteract interferon (IFN) responses but was unable to block general gene expression in human or canine cells. Such ability was restored by a single amino acid substitution in position 186 (K186E) that resulted in NS1 binding to the 30-kDa subunit of the cleavage and polyadenylation specificity factor (CPSF30), a cellular protein involved in pre-mRNA processing. We also examined the frequency distribution of K186 and E186 among H3N8 CIVs and equine influenza viruses (EIVs), the ancestors of H3N8 CIV, and experimentally determined the impact of amino acid 186 in the ability of different CIV and EIV NS1s to inhibit general gene expression. In all cases, the presence of E186 was responsible for the control of host gene expression. Contrastingly, the NS1 protein of H3N2 CIV harbors E186 and blocks general gene expression in canine cells. Altogether, our results confirm previous studies on the strain-dependent ability of NS1 to block general gene expression. Moreover, the observed polymorphism on amino acid 186 between H3N8 and H3N2 CIVs might be the result of adaptive changes acquired during long-term circulation of avian-origin IAVs in mammals. IMPORTANCE: Canine influenza is a respiratory disease of dogs caused by two CIV subtypes, the H3N8 and H3N2 viruses of equine and avian origin, respectively. Influenza NS1 is the main viral factor responsible for the control of host innate immune responses and changes in NS1 can play an important role in host adaptation. Here we assessed the ability of H3N8 CIV NS1 to inhibit host innate immune responses and gene expression. The H3N8 CIV NS1 did not block host gene expression but this activity was restored by a single amino acid substitution (K186E), which was responsible for NS1 binding to the host factor CPSF30. In contrast, the H3N2 CIV NS1, that contains E186, blocks general gene expression. Our results suggest that the ability to block host gene expression is not required for influenza replication in mammals but might be important in the long-term adaptation of avian-origin influenza viruses to mammals

    Exploring the Professional Identity Development of Counselors-In-Training through Experiential Small Groups

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    The concept of professional identity of counselors is a recent area of focus within the counseling profession. The Council for Accreditation of Counseling and Related Educational Programs standards for counselor education programs of all specialties reflect the trend towards establishing a strong professional identity for counselors. One factor shown to be influential in professional identity development has been experiential learning opportunities, which allow counselors-in-training to develop an individual professional identity through application of educational content in real-world scenarios. The literature suggests experiential learning is a pivotal opportunity for professional identity development for entry-level counseling students. One opportunity for experiential learning, which may inform professional identity development, is the small group experience with the Group Counseling and Group Work requirements of the accreditation standards. The current study explored the small group experiences of entry-level counseling students enrolled in accredited universities. This study employed three, online hermeneutic phenomenological focus groups including nine participants as a method for discovery of the professional identity development within the small group experience. Interpretive Phenomenological Analysis of online focus groups yielded themes professional identity development and dual relationships. Discussion of themes and subthemes of parallel process and barriers to disclosure discovered through analysis, include illustration with exemplar quotes from participants. This dissertation offers discussion of findings, implications for practice, considerations for future research, and limitations of the current study

    Considerations of Medicare Telehealth Services With Older Adults

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    The onset of the COVID-19 pandemic set in motion a rapid expansion of mental health services offered via telehealth. With this rapid expansion came the need to examine how policy and practice should be shaped in a future where telehealth is considered common in counseling practice. For counselors to understand how to support older adult clients in using telehealth services, they must understand telehealth policy. Following the eligibility of licensed counselors to participate in Medicare, counselors need to stay abreast of regulatory changes regarding restrictions and regulations on use of telehealth for mental and behavioral health services, including video and audio-only delivery. We explore the innovative implementation of Telehealth Access Points (TAPs), which address barriers to telehealth access for the older adult population; considerations of practice; and barriers to accessing telehealth care for mental health counselors

    Experimental investigation of woody and non-woody biomass combustion in a bubbling fluidised bed combustor focusing on gaseous emissions and temperature profiles

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    Air staging is a well-known effective method to control NOx emissions from solid fuel combustion boilers. However, further research is still needed to clarify the effect of air staging at different injection locations on the gaseous emissions of Fluidised Bed Combustion (FBC) boilers that fire 100% biomass fuels, particularly non-woody biomass fuels. The main objective of this work is to investigate the effect of the staging air injection location on the gaseous emissions (NOx and CO) and temperature profiles of a 20 kWth bubbling fluidised bed combustor firing three non-woody (straw, miscanthus and peanuts) and two woody biomass fuels. The experimental results showed that injecting the secondary air at the higher location could lead to a greater NOx reduction due to the fact that the biomass combustion reaction mainly took place in the splash zone and/or beginning of the freeboard. Up to 30% of NOx reduction, compared with no air staging, was achieved for the non-woody fuels when the staging air was injected at the higher position. Air staging also significantly reduced the CO emissions as a result of the higher temperatures in the freeboard and longer residence time in the primary combustion zone

    Doctoral Students Balancing the Roles and Relationships of Counselor Education

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    Aspiring counselor educators in Council for Accreditation of Counseling & Related Educational Programs (CACREP)-accredited programs must learn to be counselors, teachers, supervisors, researchers, and leaders. These roles can overlap, creating multiple complex relationships during their programs. To examine these roles, we conducted a constructivist grounded theory investigation of how counselor education doctoral students (n = 9) balanced multiple roles and relationships and boundary crossings. We utilized chain referral sampling and continued until we reached theoretical saturation. We used semi-structured interviews conducted via videoconferencing (Zoom) for data collection and coded the interviews using two main phases: an initial phase and a focused coding phase. We used member checks by sending participants preliminary findings for feedback. The resulting theory describes two distinct stakeholders in the management of the multiple roles and relationships in counselor education: the students and the program. Students were responsible for balancing roles and responsibilities while considering professional growth, ethics, and boundary setting. The program was responsible for providing a growth-fostering environment and mentorship. Ultimately, the process of navigating multiple roles and relationships (MRRs) involves early discussion of MRRs, intentionality of program placement, assistance with boundaries and ethical decisions, and exposure to remediation and gatekeeping

    Fauna entomológica benéfica y otras especies en el cultivo de arroz (Oryza sativa L.).

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    El presente trabajo se realizó en Juan Hombrón, distrito de Antón, de octubre 1990 a julio 1991; determinándose las familias benéficas que se encuentran en un agroecosistema de arroz, resultando Scelionidae, Braconidae, Chalcididae, Tachinidae, Chloropidae, Coccinellidae, Coenagrionidae, Chrysopidae y especies del orden Araneae ser las más numerosas. Se registró la etapa fenológica en que estas familias eran más frecuentes, y se determinó que Coccinellidae, Chloropidae y Braconidae estaban presentes en todas las etapas del cultivo; en cambio, Tachinidae fue colectada en mayor cantidad en campos de 1 a 8 semanas; el mayor número de especies de la familia Scelionidae se colectaron en campos de 5 a 8 semanas, y en campos de 5 a 12 semanas se colectó la mayor cantidad de Coenagrionidae y Araneida. Se analizó el índice de parasitismo y de depredación de algunos insectos de importancia económica en el cultivo, resultando que el porcentaje de parasitismo en huevos de Rupela albinella y en larvas de Spodoptera frugiperda, así como también, el porcentaje de depredación en larvas de R. albinella y en ninfas y adultos de Sogatodes orizicola por el coccinélido Coleomegilla maculata estuvieron por encima del 50% y no se observó parasitismo en S. orizicola. También se determinó que la larva de R. albinella penetra en el tallo cuando la planta tiene de 21 a 30 días de haber germinado

    Content Analysis of U.S. State-Level Legislation Impacting Gender-Affirming Practice in Schools

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    In recent years, there has been an increase in legislation that limits access to resources and affirming environments for LGBTQ+ individuals in the United States. This research aimed to identify trends in legislation at the state level impacting gender-affirming school counseling services in the United States. This study represents a content analysis of 225 pieces of state-level legislation from 2023 affecting LGBTQ+ youth in schools. Legislation largely created limitations on use of affirming pronouns for youth in school, availability of appropriate restrooms and changing facilities for transgender and gender expansive youth, and curriculum in schools addressing gender and sexuality

    Vaccines to prevent severe acute respiratory syndrome coronavirus-induced disease

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    An important effort has been performed after the emergence of severe acute respiratory syndrome (SARS) epidemic in 2003 to diagnose and prevent virus spreading. Several types of vaccines have been developed including inactivated viruses, subunit vaccines, virus-like particles (VLPs), DNA vaccines, heterologous expression systems, and vaccines derived from SARS-CoV genome by reverse genetics. This review describes several aspects essential to develop SARS-CoV vaccines, such as the correlates of protection, virus serotypes, vaccination side effects, and bio-safeguards that can be engineered into recombinant vaccine approaches based on the SARS-CoV genome. The production of effective and safe vaccines to prevent SARS has led to the development of promising vaccine candidates, in contrast to the design of vaccines for other coronaviruses, that in general has been less successful. After preclinical trials in animal models, efficacy and safety evaluation of the most promising vaccine candidates described has to be performed in humans

    Predictors of burnout for immigrant mental health professionals in the United States

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    Mental health professionals who identify as immigrants encounter personal and professional barriers that can impact overall wellbeing. The current study conducted a survey of 108 licensed mental health professionals who identify as immigrants practicing in the United States. The survey included demographics as well as assessments of burnout, social support, and migratory grief and loss. The results of this study highlighted that a combination of higher migratory grief and lower perceived social support significantly predicted higher levels of burnout in mental health professionals. Implications for mental health programs, supervisors, and mentors and suggestions for future research are provided
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