25 research outputs found

    Differences in pollination syndromes and the frequency of autonomous delayed selfing between co-flowering hibiscus aponeurus (sprague and hutch) and h. Flavifolius (ulbr) from Kenya.

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    Delayed autonomous selfing offers a mechanism for seed production when pollination levels are low or unpredictable. At Mpala Research Centre (MRC) in Kenya, we examined the relationships between floral attraction, insect visitation, and delayed autonomous selfing through backwards stylar curvature in the co-flowering Hibiscus aponeurus and H. flavifolius. Despite producing similar pollen and nectar rewards, visitation rates and the composition of floral visitor guilds varied significantly between these species. Across four years of observations, floral visitation in H. flavifolius was dominated by bees, and in H. aponeurus by a mixture of bees, butterflies and beetles. Visitation rates to H. flavifolius flowers (range 0.17 - 2.1 visits flr-1hr-1) were two times greater than to H. aponeurus flowers (range 0 - 2.7 visits flr-1hr-1), which resulted in significantly higher pollen deposition and removal rates in H. flavifolius than in H. aponeurus. Field crosses demonstrated little pollen limitation in either species. In open-pollinated flowers, H. aponeurus displayed significantly greater stylar curvature and apparent self-pollination than did H. flavifolius. Floral attributes in H. aponeurus, such as a smaller corolla size and a downwards orientation of the stylar column, also suggest that delayed selfing is a more important mechanism of reproductive assurance in this species than in H. flavifolius. Determining whether these differences in insect visitation and stylar curvature are characteristic for these species or are unique to MRC will require comparison with populations located in other parts of the ranges, genetic tests of selfing rates, and chemical analyses of nectar, pollen, and floral volatiles

    Rockport Comprehensive Plan

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    This document was developed and prepared by Texas Target Communities (TxTC) at Texas A&M University in partnership with the City of Rockport, Texas Sea Grant, Texas A&M University - Corpus Christi, Texas A&M University - School of Law and Texas Tech University.Founded in 1871, the City of Rockport aims to continue growing economically and sustainably. Rockport is a resilient community dedicated to sustainable growth and attracting businesses to the area. Rockport is a charming town that offers a close-knit community feel and is a popular tourist destination for marine recreation, fairs, and exhibitions throughout the year. The Comprehensive Plan 2020-2040 is designed to guide the city of Rockport for its future growth. The guiding principles for this planning process were Rockport's vision statement and its corresponding goals, which were crafted by the task force. The goals focus on factors of growth and development including public participation, development considerations, transportation, community facilities, economic development, parks, and housing and social vulnerability

    “Man\u27s Inhumanity to Man: Mexican-American Prison Memoirs and the Law

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    Recording from Dr. Guajardo: https://youtu.be/a9FAz7Ae9Aw Recording from Paul A. Guajardo: https://youtu.be/uqeNOWnCxxE This panel focuses on Latino prison memoirs and the law. 2.3 million people in the US are incarcerated, and proportionally, minorities are the bulk of the population in prison—many are from low-income and single-parent homes. Is the primary purpose of prison to punish, to reform, or to produce a profit? Prisons are called “correctional” facilities, yet too often instead of rehabilitation, there is inhumanity and abuse. Prison has been called graduate school for criminals, but jails should be places of reformation and education. Instead, we learn, for example, that more men are raped in the U.S. than women (when we account for prisoners). The US accounts for around 5% of the world’s population but we have 25% of its inmates. President Obama visited a federal prison in Oklahoma highlighting the need for reform. President Trump attended a graduation ceremony for former prisoners also acknowledging the limitations of our carceral system

    A Canadian Survey of Research on HIV-1 Latency—Where Are We Now and Where Are We Heading?

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    Worldwide, almost 40 million people are currently living with HIV-1. The implementation of cART inhibits HIV-1 replication and reduces viremia but fails to eliminate HIV-1 from latently infected cells. These cells are considered viral reservoirs from which HIV-1 rebounds if cART is interrupted. Several efforts have been made to identify these cells and their niches. There has been little success in diminishing the pool of latently infected cells, underscoring the urgency to continue efforts to fully understand how HIV-1 establishes and maintains a latent state. Reactivating HIV-1 expression in these cells using latency-reversing agents (LRAs) has been successful, but only in vitro. This review aims to provide a broad view of HIV-1 latency, highlighting Canadian contributions toward these aims. We will summarize the research efforts conducted in Canadian labs to understand the establishment of latently infected cells and how this informs curative strategies, by reviewing how HIV latency is established, which cells are latently infected, what methodologies have been developed to characterize them, how new compounds are discovered and evaluated as potential LRAs, and what clinical trials aim to reverse latency in people living with HIV (PLWH)

    Translating evidence-based practice for managing comorbid substance use and mental illness using a multimodal training package

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    Objective: Comorbid mental health and substance use problems are highly prevalent in substance use treatment settings and generally lead to poorer treatment outcomes. Pathways to Comorbidity Care (PCC) is a multimodal training program developed to encourage an integrated service approach to improve clinicians capacity to identify and manage comorbid substance use and mental health outcomes within public drug and alcohol treatment settings. Methods: In this paper we describe the concepts underlying the PCC package and the use of implementation science to assess and overcome potential barriers, including clinicians preferences, knowledge about best practice, and professional culture. Results: The training components include didactic seminars, group workshops run by a local clinical champion on relevant subjects such as motivational interviewing and cognitive behavioral therapy, individual clinical consultation, and feedback with a senior clinical psychologist. The PCC also includes an online portal containing comorbidity resources including manuals, guidelines, and booster webinars. Finally, we describe the evaluation of PCC implementation. Conclusions: Drug and alcohol services need to be equipped to treat the majority of comorbid mental health conditions in their clients. We anticipate that this multimodal training package, which applies the principles of implementation science, will facilitate effective and integrated care for these vulnerable clients
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