Additional Research and Taxonomic Resolution of Salamanders (Amphibia: Caudata) from the Mio-Pliocene Gray Fossil Site, TN

The Gray Fossil Site (GFS), a Mio-Pliocene (4.5–7 Ma) locality in the southern Appalachians, boasts the most diverse pre-Pleistocene salamander fauna in North America: Desmognathus sp., Plethodon sp., Notophthalmus sp., a Spelerpinae-type plethodontid, and Ambystoma sp. Because greater taxonomic resolution can result in more precise paleobiological interpretations, additional specimens were studied here. ETMNH 8045, a nearly complete articulated ambystomatid, appears most like Ambystoma maculatum in dentition and vertebral proportions. ETMNH 18219, an isolated vomer, is consistent with modern Pseudotriton and Gyrinophilus in possessing a postdentigerous process and a similar dentigerous row morphology. If these taxa, or species of similar ecological preferences, occurred around the GFS, it seems unlikely they co-inhabited the sinkhole lake. Aquatic stages of Pseudotriton and terrestrial Gyrinophilus last multiple years; their presence could further support a perennial lake interpretation. Modern A. maculatum preferentially breed in vernal pools; confirmed identification could suggest local seasonal wetlands

ISER Working Paper 2009.1

In this report we calculate the economic importance of nature-based tourism in Southeast Alaska as measured by business revenue. Our estimates are based on field research conducted during 2005, 2006 and 2007. We define nature-based tourism as those tourism activities for which the natural environment is a significant input.1 Our key findings include the following: • Nature-based tourism generates about $277 million per year of direct business revenues in Sitka, Juneau, Chichagof Island, Prince of Wales Island, Petersburg and Wrangell. This number is most likely an underestimate of total revenues because not all naturebased tourism businesses and business sectors could be included in our estimates. Our numbers do not include tips – which in some businesses might add 25taxes and fess paid directly to local governments. In addition, the especially rainy weather of 2006 probably caused abnormally low sales for some businesses. • Average revenue per visitor varies considerably among communities and activities; ranging from about$140 per visitor in Juneau to more than $2,600 per visitor on Prince of Wales Island. These differences reflect the range of activities offered -- from half-day excursions to multiple, overnight all-inclusive lodge stays. • Nature-based tourism expenditures create a significant economic ripple effect that keeps money circulating through the economy. This money supports jobs in marketing, support services, food and beverages, accommodations, fuel sales, government, and other sectors. • Communities are clearly striving to differentiate themselves and capitalize on local amenities such as the Stikine River, Anan Creek, the LeConte Glacier, Tracy Arm, Glacier Bay, Pack Creek and exceptional fishing and scenic opportunities. • A large and growing portion of Southeast Alaska’s visitors are cruise ship passengers. Both cruise passengers and independent travelers are similarly interested in nature-based tourism services. The majority of cruise ship shore excursions offer nature-based activities, from hikes and glacier viewing to flightseeing and forest canopy zip lines. • Communities hosting large numbers of cruise passengers are actively developing new and creative tourism products such as forest canopy zip lines and mountain biking while those with fewer visitors tend to be focused on sport fishing. This appears to be the case even if local amenities exist to support a broader range of business and visitor activities. Thus, there appear to be unrealized opportunities in some communities, but these may also reflect an inadequate visitor base upon which to risk additional investment. • There is a complex and competitive system for pre-booking cruise ship shore excursions. Businesses with exclusive cruise line contracts make price and tour information available only to cruise passengers and often agree to sell tours only through the cruise line.• The tourism businesses in cruise ports of call that appear to be most successful either have a cruise ship shore excursion contract or are catering to overnight (non-cruise) guests with high-quality and high-value services. Examples of these types of businesses include sport fishing lodges and multi-day yacht cruises. • It is difficult to compete with established businesses holding existing cruise line contracts. Despite this hurdle, a number of companies are offering creative new products including zip lines through the forest canopy, glass-bottomed boats, and an amphibious “duck” tour. • Some operators attribute the increased interest in adventure activities to a change in cruise ship clientele. In recent years, cruise companies have been catering to a younger crowd, targeting families. In any event, increasing numbers of passengers are interested in more active pursuits. • Competition for cruise passengers exists both within and between communities, as people are booking their shore excursions in advance and look at all the options. Sitka companies mentioned they were carefully tracking zip line activity in Juneau and Ketchikan, dogsled tours on the Mendenhall Glacier, and other activities to see which market niche they could capture. • There is some evidence that visitors are willing to pay premium prices for higher quality experiences in more pristine environments. However, it is not clear what specific attributes (seclusion, fishing experience, food, services, perceived exclusivity, and environmental amenities) are the key components of this higher market value. • It is possible to design a community-based tourism program that provides employment to local residents as is occurring in Hoonah. However, Elfin Cove appears to bring in more in gross revenues than Hoonah with about one-eighth as many visitors because Hoonah’s operation relies on volume while Elfin Cove businesses rely on higher-priced fishing lodge experiences. Day trips seem to be relatively higher cost, lower profit operations. • Independent travelers appear to try to avoid crowds and many are repeat visitors. Most tend to stay longer and have more open itineraries than those on cruise ships or organized tours. These characteristics make independent travelers more difficult to contact. • Independent travelers also appear to seek communities with fewer visitors and those that they perceive to be more “authentic,” such as Petersburg, Wrangell, and communities on Chichagof Islands. A lack of transportation capacity, whether on scheduled jets or on ferries, may be limiting the opportunities for these smaller communities. Less marketing may also be a factor limiting visits by independent travelers. • The primary marketing mechanisms for smaller, non-cruise related businesses are the internet and word of mouth. In addition, many customers return to the same fishing lodge, yacht tour, or charter business year after year. • Wildlife viewing is highly attractive to visitors due to spectacular scenery and abundant wildlife including whales and other marine mammals. Companies in several communities expressed a desire to move toward more wildlife viewing and sightseeing and away from sport fishing. These operators preferred wildlife viewing as it was less stressful due to less pressure to catch fish. Some operators were making this shift, while others thought they would not be able to match the revenue generated by sport fishing. • Weather has a significant impact on business for companies whose tours are not prebooked on cruise ships. Operators noted a marked difference between the sunny, dry summer of 2004 and the remarkably wet summer of 2006. Visitors walking off a ship in the rain were much less likely to go on marine tours or hikes in soggy conditions, and seasonal revenues were down. Businesses with cruise contracts did not experience this setback as passengers are not reimbursed for pre-sold tours when weather conditions are poor. The one exception was flightseeing, where companies had to cancel tours due to unsafe weather conditions. • Promoting wildlife watching is an important marketing strategy for Southeast Alaska communities. Visitors bureaus currently produce pamphlets with charismatic large animals, such as whales and bears. Bureau staff cited studies showing the desire to see wildlife was attracting a large portion of out-of-state visitors. • A significant policy question emerging from this research is how the public lands might be managed to increase the economic returns from tourism to residents of Southeast Alaska communities, especially the smaller communities that can only accommodate smaller numbers of visitors at one time. Bear viewing is one example of a high-value activity that depends on controlled access to specific infrastructure.Alaska Conservation Foundation. University of Alaska Foundation. The Wilderness Society.Executive Summary / Introduction / Methods / Ketchikan / Juneau / Sitka / Norther Southeast Alaska Yachts / Chichagof Island / Prince of Wales Island / Petersburg / Wrangell / Conclusion

Bars to Justice: The Impact of Rape Myths on Women in Prison

This article stems from a National Science Foundation-funded interdisciplinary research project that addresses a major gap in understanding the reporting of sexual victimization in prison and the confluence of factors that contribute to the ineffectiveness of internal laws and policies. As a basis of this work, our cohort of scholars in law, social work, and psychology utilized data and personal narratives from the groundbreaking class action lawsuit, Neal v. MDOC, brought on behalf of over 800 female inmates against the State of Michigan. In this article, we identify the most prevalent rape myths we observed from women who were involved in the Neal lawsuit and other similarly situated female inmates across the country. We focus on the impact of rape myths in contexts where prison staff perpetrate sexual violence against female inmates and in particular, how rape myths span the closed prison system-from reporting to grievance outcomes.We explore how these myths shape notions of the ideal victim, discuss their specific impact, and explain why they matter. We consider how, by virtue of their incarcerated status, it is impossible for women victimized in prison to meet the ideal victim standards, ultimately rendering their attempts at seeking justice futile. We hope that our analysis of rape myths in the prison context will inspire changes in prison law and policy by acknowledging and urging the dismantling of these often unforeseen, implicit, and informal barriers to justice

Feline primary erythrocytosis: a multicentre case series of 18 cats

A retrospective multicentre case series of feline primary erythrocytosis (PE) was evaluated. The aim was to gain better understanding of disease presentation and progression to guide management and prognostication. Case records were assessed for evidence of increased packed cell volume (PCV; >48%), sufficient investigation to rule out relative and secondary erythrocytosis, and follow-up data for at least 12 months or until death. Eighteen cats were included in the case series. No significant trends in signalment were noted. Seizures and mentation changes were the most common presenting signs (both n = 10). Median PCV was 70% (median total protein concentration of 76 g/l) with no other consistent haematological changes. Sixteen cats survived to discharge. Phlebotomy was performed initially in 15/16 surviving animals and performed after discharge in 10/16. Hydroxyurea was the most common adjunctive therapy, used in 10/16 cats. Of the 16 patients surviving to discharge, 14 patients were still alive at the conclusion of the study (survival time >17 months post-discharge), with the two non-survivors having lived for 5 years or more after diagnosis. PCV, when stabilised, did not correlate with resolution of clinical signs

The development of task performance across the worker lifespan

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Atualização da modelagem de uma passarela de pedestres e avaliação do seu desempenho dinâmico

Loadings in special systems, such as footbridges, are characterized by low frequencies that can be close to the natural frequencies of the structure, generating discomfort and safety risk for users. Sensitivity to vibrations at low frequencies contributes to the need of studying the dynamic behavior of these structural systems in order to perform satisfactorily. The work consists of the updating and dynamic analysis of the numerical model, in finite elements, of a footbridge located in the city of João Pessoa, using simulations with some loading scenarios estimated from standards so as to evaluate the dynamic structural performance using the ANSYS 14.5 software. In order to compare the results of the analysis in the model, normative limits and the natural experimental frequencies of the structure obtained in previous tests with accelerometers were used. From the obtained results it was possible to verify that the model represents the structure well, presenting vibration frequencies in the vertical and lateral direction close to those identified experimentally. As for the simulation results, it was verified that the footbridge does not present excessive vibrations problems in any of the directions studied for the considered loading scenarios.Os carregamentos em sistemas especiais, como passarelas, caracterizam-se por ter baixas frequências que podem ser próximas às frequências naturais da estrutura, gerando desconforto aos usuários e risco à segurança. A sensibilidade às vibrações em baixas frequências contribui para a necessidade de se estudar o comportamento dinâmico desses sistemas estruturais, a fim de garantir um desempenho satisfatório. Nesta linha, o trabalho consiste na atualização e análise dinâmica do modelo numérico, em elementos finitos, de uma passarela localizada na cidade de João Pessoa, utilizando simulações com alguns cenários de carregamento estimados a partir de normas com o objetivo de avaliar o desempenho estrutural dinâmico utilizando o software ANSYS 14.5. Para confrontar os resultados da análise no modelo, utilizaram-se os limites normativos e as frequências naturais experimentais da estrutura obtidos em testes anteriores com acelerômetros. A partir dos resultados alcançados foi possível verificar que o modelo representa bem a estrutura, apresentando frequências de vibração, nas direções vertical e lateral, próximas às identificadas experimentalmente. Quanto aos resultados das simulações, verificouse ainda que a passarela não apresenta problemas de vibrações excessivas em nenhuma das direções estudadas para os cenários de carregamento considerados

The Effectiveness of Occupation-based Virtual Reality Intervention on Upper Extremity Functional Improvement in Post-stroke Individuals: A Systematic Review

Purpose: Virtual reality (VR)-based therapy is an emerging practice in the clinical setting and still requires research documenting its efficacy. This review analyzed the effectiveness of VR-based therapy on upper extremity (UE) motor recovery in individuals with chronic stroke by analyzing multiple randomized controlled trials. Methods: Search limits for this review consisted of articles published between January 2010 and January 2020 and available in English. Search keywords were based on language in individual databases (e.g. stroke or cerebrovascular accident, upper extremity, occupational therapy). Articles were limited to include only randomized control trials consisting of adult patients (18+) with UE impairment due to chronic stroke (onset at least 3 months prior) and occupation-based virtual reality intervention. Results: 242 articles were screened; eight met the inclusion criteria. Forms of VR within the reviewed articles included traditional gaming systems, mobile-based game devices, and VR combined with real instrument training. These studies showed improved outcomes following VR training such as improvement of UE function, activity participation, and health-related quality of life. Conclusion: The results of this review suggest that VR-based therapy has efficacy equal to or greater than conventional therapy for improving function in the upper extremity of adult patients with chronic stroke. As supported by research, practitioners may incorporate virtual reality-based therapy into conventional clinical sessions to assist in improving UE function and interactions within different environments and to help enhance overall participation in daily tasks and occupational performance in their clients

Sexual Violence as an Occupational Hazard & Condition of Confinement in the Closed Institutional Systems of the Military and Detention

Women in the military are more likely to be raped by other service members than to be killed in combat. Female prisoners internalize rape by corrections officers as an inherent part of their sentence. Immigrants held in detention fearing deportation or other legal action endure rape to avoid compromising their cases. This Article draws parallels among closed institutional systems of prisons, immigration detention, and the military. The closed nature of these systems creates an environment where sexual victimization occurs in isolation, often without knowledge of or intervention by those on the outside, and the internal processes for addressing this victimization allow for sweeping discretion on the part of system actors. This Article recommends a two-part strategy to better make victims whole and effect systemic, legal, and cultural change: the use of civil lawsuits generally, with a focus on the class action suit, supplemented by administrative law to enforce federal rules on sexual violence in closed systems. This Article strives to break down the walls that separate these different closed systems into silos, toward an end of shifting laws and policy to better address the multi-faceted problem of sexual victimization

Effects of immunization against bone morphogenetic protein-15 and growth differentiation factor-9 on ovarian function in mares

Currently there is no contraceptive vaccine that can cause permanent sterility in mares. This study investigates the effect of vaccination against oocyte-specific growth factors, Bone Morphogenetic Protein 15 (BMP-15) and Growth Differentiation Factor 9 (GDF-9), on ovarian function of mares. It was hypothesized that immunization against these growth factors would prevent ovulation and/or accelerate depletion of the oocyte reserve. For this study, 30 mares were randomly assigned to three groups (n=10/group) and vaccinated with BMP-15 or GDF-9 peptides conjugated to KLH and adjuvant, or a control of phosphate buffered saline and adjuvant. Horses received vaccinations at weeks 0, 6, 12, and 18. Ovarian activity and estrous behavior were evaluated 3 days a week via ultrasonography and interaction with a stallion. The study was initiated on March1, 2016. Upon evaluation of ovulation rate, the GDF-9 group did not have a difference (P=0.66) in ovulation rate when compared to controls (10.8 and 10.0 ovulations, respectively), but the number of ovulations in the BMP-15 group was less (P=0.02; 4.9 ovulations). Average follicle size prior to ovulation was less (P \u3c 0.0001) in both treatment groups compared to controls. Estrous behavior was altered in both the BMP-15 and GDF-9 groups compared to controls after the second vaccination (P=0.05 and 0.03, respectively). Although further research is required to determine the continued effects of vaccination against GDF-9 on ovulation rates, these results indicate that vaccination against BMP-15 and GDF-9 could serve as a contraceptive in wild horse populations