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What Determines Paternity in Wild Lizards? A Spatiotemporal Analysis of Behavior and Morphology
No full textMating behavior in animals can be understood as a sequence of events that begins with individuals encountering one another and ends with the production of offspring. Behavioral descriptions of animal interactions characterize early elements of this sequence, and genetic descriptions use offspring parentage to characterize the final outcome, with behavioral and physiological assessments of mates and mechanisms of copulation and fertilization comprising intermediate steps. However, behavioral and genetic descriptions of mating systems are often inconsistent with one another, complicating expectations for crucial aspects of mating biology, such as the presence of multiple mating. Here, we use behavioral and genetic data from a wild population of the lizard Anolis cristatellus to characterize female multiple mating and the potential for sexual selection through female mate choice in this species. We find that 48% of sampled females bore offspring sired by multiple males. Moreover, spatiotemporal proximity between males and females was associated with whether a male sired a female\u27s offspring, and if yes, how many offspring he sired. Additionally, male body size, but not display behavior, was associated with reproductive outcomes for male-female pairs. While much remains to be learned about the mechanisms of mating and targets of sexual selection in A. cristatellus, it is clear that female multiple mating is a substantial component of this species\u27 mating system in nature
Train Your Frontline Personnel from Newbie to Master IT Users: A Three-Phase Longitudinal Experiment Focusing on Technology Compatibility
Get PDFBackground: Although many decision makers have recognized the importance of training to the success of their frontline personnel and organizations, hidden technological compatibility issues can lead to training failure especially when different generations, or iterations, of hardware and software are involved. In this study, we aimed to investigate the impact of different levels (high vs. low) of compatibility between software and hardware on frontline trainees’ gained understanding of the related IT.
Method: Grounded in experiential learning, we designed a three-stage training experiment that involved the use of cloud-based geographical information systems and radio-frequency identification devices. The experiment included compatibility between hardware and software, a longitudinal learning simulation, and a real-world frontline scenario. 33 students enrolled in an introductory course from a major business school participated in the training, and their responses during each training stage were collected.
Results: The results revealed that compatibility is a critical factor in determining the success or failure of an IT training program. High compatibility helps frontline trainees accumulate useful IT knowledge over time, while low compatibility tends to reduce their learning outcome on the related IT over time.
Conclusions: This study is one of the few that focus on IT training issues relating to a neglected but important user group – frontline workers. Studying hardware-software compatibility of the target technology expands the understanding of factors that influence IT training outcomes. This research highlights the strategic role of well-articulated IT compatibility in frontline IT training
Understanding Increased Ferritin Levels in Pediatric ECMO Patients
No full textAbnormally high serum ferritin levels have been reported during pediatric ECMO, attributed to frequent red blood cell transfusion and suggestive of iron overload. However, the utility of ferritin for diagnosing iron overload is complicated by its response as an acute-phase reactant. In this study, we aimed to assess the utility of ferritin for diagnosing ECMO-related iron overload, with secondary aims of understanding its relationship with inflammation and erythropoiesis. Ferritin was elevated in all pediatric ECMO runs (median 459 ng/ml, IQR = 327.3-694.4). While intermittent elevations in serum iron were observed, all normalized prior to decannulation. Unreported previously, erythropoietin (EPO) remained well above normative values prior to and throughout ECMO runs, despite frequent transfusion and exposure to hyperoxia. Ferritin correlated poorly with serum iron [r(80) = 0.05, p = 0.65], but correlated well with IL-6 [r(76) = 0.48, p \u3c 0.001] and EPO [r(81) = 0.55, p \u3c 0.001]. We suggest that serum ferritin is a poor biomarker of iron overload in ECMO patients, and that future investigation into its relationship with EPO is warranted
[Review of the Book \u3cem\u3eThe Power Worshippers: Inside the Dangerous Rise of Religious Nationalism\u3c/em\u3e, by K. Stewart]
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Variations on Hunting and Care: Ownership, Kinship and Other Interspecific Relationships in the Eastern Amazon
Get PDFThis article is based on fieldwork among the Guajá people, a small indigenous group of Tupí-Guaraní speakers inhabiting the eastern portion of Brazil’s Amazon region. Aiming for an ethnographic definition of kinship, this article engages in issues related to the figure of the “owner/masterin the Amazon, proposing a dialogue with a seldom discussed aspect of this subject—namely, its relation to conjugality. I argue that relationships included in the universe of “familiarity” and “mastery” are not only coextensive with the field of kinship; they also reveal a very particular conception of humanity. The process of Awá-Guajá kinship, where the spouse is transformed through a very particular system of actions, can only be understood if we move beyond the issue of Amazonian affinity and articulate it with certain aspects of the familiarity and mastery theme. This article is an attempt to think inclusively about kinship, the mastery/ownershiptheme, and some ecological questions, in an ethnographic way
Augustan Poetry and the Age of Rust: Music and Metaphor in Anaïs Mitchell’s \u3cem\u3eHadestown\u3c/em\u3e
No full textSense and Creative Labor in Rainer Maria Rilke\u27s Prose Works
No full textThis book is an investigation of the role of creative labor and the five senses in Rainer Maria Rilke’s prose works, including his “Primal Sound” essay, the Stories of God, The Notebooks of Malte Laurids Brigge, and his monograph on Auguste Rodin. It is about several protagonists’ quest to achieve creative labor by reconnecting spirit or the unconscious to the hand. There are many difficulties in the way, however, illustrated by Rilke’s essays, tales, and monographs. In the process of overcoming these impediments, the five senses are expanded and refined. Rilke’s characters undergo a transformation that not only allows them to do true creative labor, but also brings them into a new relationship with themselves, the world around them and other people.https://digitalcommons.trinity.edu/mono/1169/thumbnail.jp