Strategies to Improve Executive Functioning in Students with Attention Deficit Hyperactivity Disorder

Students with ADHD and executive function deficits experience academic and social and emotional difficulties throughout their school day. This paper summarizes research that has been provided regarding strategies to improve executive function skills in students with a diagnosis of ADHD. The studies in this paper were conducted within the last seven years and are presented in groups based on types of interventions of exercise and sensory integration, mindfulness, and computer based programs. The areas that I have chosen to give more attention to are those that can easily be implemented and practiced in a variety of school settings including the mainstream classroom, special education classes, during social work or counselor sessions and during transition or unstructured times of the students’ school day

Exploring the Relationships between South Texas Northern Bobwhite Populations and Cecal Worms via System Dynamics

Community ecology historically focused on plants and free-living organisms; however, problems such as defining habitat boundaries and obtaining adequate sample sizes arise when evaluating such communities. The unique nature of host-helminth systems allows parasite community ecologists to avoid these problems when testing ecological hypotheses. Unlike free-living communities that have artificially constructed boundaries, parasite communities have well-defined unambiguous boundaries within host individuals. Due to the inherently complex and dynamic nature of ecological systems, traditional experimental methods often require expensive, long-term trials beyond investigators’ time and resource budgets. Conversely, a system dynamics approach facilitates learning about such systems via simulation of ecosystem processes integrated with historical data (both quantitative and qualitative). Relatively few studies focus on parasites in South Texas, USA, although research on avian host-parasite systems has shown that parasites can potentially regulate host populations. The northern bobwhite (Colinus virginianus; hereafter, bobwhite) is a game species of ecological, economic, cultural, and recreational importance in Texas that has been experiencing a long-term, widespread decline. To holistically examine the bobwhite-helminth system in South Texas, we created a system dynamics model capturing the feedback relationships between a South Texas bobwhite population, a grasshopper (family Acrididae) population, and the corresponding cecal worm (Aulonocephalus pennula) populations on a hypothetical 1,000-acre ranch in South Texas. The model structure, constructed in Vensim® PLE 7.2 software (Ventana Systems, Inc.), integrates the hypothesized biotic and abiotic drivers (precipitation, parasite load, insect abundance, and quail density) unique to the host-helminth system over 7 years (2012–2019). Our specific objectives were to 1) develop a working baseline model to replicate the synergistic population dynamics among bobwhite, grasshopper, and cecal worm populations and then 2) test hypotheses about each population’s boom-and-bust cycles resulting from environmental stressors (e.g., drought). Applications of the model can provide landowners and natural resource managers with a better understanding of the complex dynamics occurring among bobwhite, grasshopper, and cecal worm populations in South Texas

Art, Artifact, Archive: African American Experiences in the Nineteenth Century

Angelo Scarlato’s extraordinary and vast collection of art and artifacts related to the Civil War, and specifically to the Battle of Gettysburg, the United States Colored Troops, slavery and the African American struggle for emancipation, citizenship and freedom has proved to be an extraordinary resource for Gettysburg College students. The 2012-14 exhibition in Musselman Library’s Special Collections, curated by Lauren Roedner ’13, entitled Slaves, Soldiers, Citizens: African American Artifacts of the Civil War Era and its corresponding catalogue provided a powerful and comprehensive historical narrative of the period. This fall, students in my course at Gettysburg College “Art and Public Policy”—Diane Brennan, Maura Conley, Abigail Conner, Nicole Conte, Victoria Perez-Zetune, Savannah Rose, Kaylyn Sawyer, Caroline Wood and Zoe Yeoh—selected additional objects of material and print culture from Angelo’s private collection and drew from Lauren’s expertise for the exhibition Art, Artifact, Archive: African American Experiences in the Nineteenth Century to investigate public representations of a newly freed population as well as their more personal perspectives. [excerpt]https://cupola.gettysburg.edu/artcatalogs/1015/thumbnail.jp

Survey of Pediatric Critical Care Fellows on Postresuscitation Debriefing

PURPOSE: Current guidelines recommend debriefing following medical resuscitations to improve patient outcomes. The goal of this study was to describe national trends in postresuscitation debriefing practices among pediatric critical care medicine (PCCM) fellows to identify potential gaps in fellow education. METHODS: A 13-item survey was distributed to fellows in all 76 ACGME-accredited PCCM programs in the United States in the spring of 2021. The online survey addressed frequency and timing of debriefings following medical resuscitations, whether formal training is provided, which medical professionals are present, and providers\u27 comfort level leading a debriefing. Results were analyzed using descriptive statistics. RESULTS: A total of 102 responses (out of a possible N of 536) were gathered from current PCCM fellows. All fellows (100%) reported participation in a medical resuscitation. Only 21% stated that debriefings occurred after every resuscitation event, and 44% did not follow a structured protocol for debriefing. While 66% reported feeling very or somewhat comfortable leading the debriefing, 19% felt either somewhat uncomfortable or very uncomfortable. A vast majority (92%) of participating fellows believed that debriefing would be helpful in improving team member performance during future resuscitations, and 92% expressed interest in learning more about debriefing. CONCLUSIONS: The majority of PCCM fellows do not receive formal training on how to lead a debriefing. Given that 74% of fellows in our study did not feel very comfortable leading a debriefing but almost universally expressed that this practice is useful for provider well-being and performance, there is a clear need for increased incorporation of debriefing training into PCCM curricula across the United States

NT-3, like NGF, Is Required for Survival of Sympathetic Neurons, but Not Their Precursors

AbstractSuperior cervical ganglia of postnatal mice with a targeted disruption of the gene for neurotrophin-3 have 50% fewer neurons than those of wild-type mice. In culture, neurotrophin-3 increases the survival of proliferating sympathetic precursors. Both precursor death (W. ElShamy et al., 1996, Development 122, 491–500) and, more recently, neuronal death (S. Wyatt et al., 1997, EMBO J. 16, 3115–3123) have been described in mice lacking NT-3. Consistent with the second report, we found that, in vivo, neurogenesis and precursor survival were unaffected by the absence of neurotrophin-3 but neuronal survival was compromised so that only 50% of the normal number of neurons survived to birth. At the time of neuron loss, neurotrophin-3 expression, assayed with a lacZ reporter, was detected in sympathetic target tissues and blood vessels, including those along which sympathetic axons grow, suggesting it may act as a retrograde neurotrophic factor, similar to nerve growth factor. To explore this possibility, we compared neuron loss in neurotrophin-3-deficient mice with that in nerve growth factor-deficient mice and found that neuronal losses occurred at approximately the same time in both mutants, but were less severe in mice lacking neurotrophin-3. Eliminating one or both neurotrophin-3 alleles in mice that lack nerve growth factor does not further reduce sympathetic neuron number in the superior cervical ganglion at E17.5 but does alter axon outgrowth and decrease salivary gland innervation. Taken together these results suggest that neurotrophin-3 is required for survival of some sympathetic neurons that also require nerve growth factor

High-efficiency gene transfer into nontransformed cells: utility for studying gene regulation and analysis of potential therapeutic targets

The elucidation of the signalling pathways involved in inflammatory diseases, such as rheumatoid arthritis, could provide long sought after targets for therapeutic intervention. Gene regulation is complex and varies depending on the cell type, as well as the signal eliciting gene activation. However, cells from certain lineages, such as macrophages, are specialised to degrade exogenous material and consequently do not easily transfect. Methods for high-efficiency gene transfer into primary cells of various lineages and disease states are desirable, as they remove the uncertainties associated with using transformed cell lines. Significant research has been undertaken into the development of nonviral and viral vectors for basic research, and as vehicles for gene therapy. We briefly review the current methods of gene delivery and the difficulties associated with each system. Adenoviruses have been used extensively to examine the role of various cytokines and signal transduction molecules in the pathogenesis of rheumatoid arthritis. This review will focus on the involvement of different signalling molecules in the production of tumour necrosis factor alpha by macrophages and in rheumatoid synovium. While the NF-kappaB pathway has proven to be a major mediator of tumour necrosis factor alpha production, it is not exclusive and work evaluating the involvement of other pathways is ongoing

Understanding oxygen tension impact for enhanced clinical scale hematopoietic progenitor cell differentiation

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Bruton's Tyrosine Kinase Is Required For Lipopolysaccharide-induced Tumor Necrosis Factor α Production

Lipopolysaccharide (LPS), a product of Gram-negative bacteria, is potent mediator of tumor necrosis factor (TNF)α production by myeloid/macrophage cells. Inhibitors capable of blocking the signaling events that result in TNFα production could provide useful therapeutics for treating septic shock and other inflammatory diseases. Broad spectrum tyrosine inhibitors are known to inhibit TNFα production, however, no particular family of tyrosine kinases has been shown to be essential for this process. Here we show that the Bruton's tyrosine kinase (Btk)-deficient mononuclear cells from X-linked agammaglobulinemia patients have impaired LPS-induced TNFα production and that LPS rapidly induces Btk kinase activity in normal monocytes. In addition, adenoviral overexpression of Btk in normal human monocytes enhanced TNFα production. We examined the role of Btk in TNFα production using luciferase reporter adenoviral constructs and have established that overexpression of Btk results in the stabilization of TNFα mRNA via the 3′ untranslated region. Stimulation with LPS also induced the activation of related tyrosine kinase, Tec, suggesting that the Tec family kinases are important components for LPS-induced TNFα production. This study provides the first clear evidence that tyrosine kinases of the Tec family, in particular Btk, are key elements of LPS-induced TNFα production and consequently may provide valuable therapeutic targets for intervention in inflammatory conditions