Validity and Reliability of Devices Measuring Countermovement Vertical Jump Performance

The counter-movement jump (CMJ) test is a standard measure of lower body power and can be related to other aspects of athletic performance. With many tools commercially available, it can be difficult for professionals to distinguish which device provides the most accurate results for the best cost. While these devices have been previously validated individually, no past studies have concurrently examined these specific tools. The purpose of this study was to determine the accuracy of four different CMJ measuring devices when compared to the gold standard of a force plate. Thirty-one physically active university students were recruited for this study. Upon completion of a short dynamic warm-up and instruction on proper jumping technique, each participant performed four maximal CMJs on the force plate. They then performed an additional four maximal CMJs in an area where four other instruments were used to measure CMJ simultaneously: accelerometer-based sensor, a contact mat, a photoelectrical cell system, and a mobile device video app. Analysis of the data was conducted, and results showed that while slightly overestimating measurements, the commercial devices that seem to agree the closest to the gold standard force plate were the contact mat and accelerometer-based sensor

Reading urban environments : French exiles in the poetry of Charles Baudelaire and ethnography of Léon-Gontran Damas

This report examines how urban environments create a sense of exile for marginalized communities in the work of French poet Charles Baudelaire and the ethnography of French Guianese Creole writer Léon-Gontran Damas, Retour de Guyane. Through a comparative literary analysis informed by an environmental justice framework I examine how urban decay prompts the development of discourses on public health in nineteenth-century Paris and twentieth-century French Guiana. A main question I address is: How do representations of exile in French and Francophone literature indicate the process of nation-building? I foreground the discriminatory legacy of French colonialism in my analysis of Retour de Guyane to highlight how governmental neglect resulting in Guiana’s infrastructural decay constitutes an act of environmental racism and social exclusion. By using French Guiana as a case point, I illustrate examples of deliberate environmental degradation of racialized communities today in the twenty-first century and describe how Charles Baudelaire and Léon-Gontran Damas transmit the value of environmental awareness for the sake of intergenerational well-being.Comparative Literatur

Poetry Month Series: Michael Reyes

As a poet, artist and organizer, Reyes performs internationally and facilitates educational performances and workshops by merging creative expression and critical thought. His mission is to provide a participatory educational environment through poetry and hip-hop to address issues of social justice and cultural identity. His work has been featured on HBO, CNN, PBS, The Chicago Tribunes Hoy Noticias, Latin Nation, Chicago Public Radio, National Public Radio, Pacifica, WBAI, and Democracy Now. As an interdisciplinary artist he has worked with national activist, organizers, educators and artists such as: Dr. Cornel West, Lolita Lebron, Dolores Huerta, Oliver Stone, Minster Louis Farrakhan, and Kanye West, to name a few.https://digitalcommons.imsa.edu/dei_speakers/1006/thumbnail.jp

Communication Bandwidth Considerations for Exploration Medical Care During Space Missions

Destinations beyond low Earth orbit, especially Mars, have several important constraints, including limited resupply, limited to no possibility of medical evacuation, and delayed communication with ground support teams. Therefore, medical care is driven towards greater autonomy and necessitates a medical system that supports this paradigm, including the potential for high medical data transfer rates in order to share medical information and coordinate care with the ground in an intermittent fashion as communication allows. The medical data transfer needs for a Martian exploration mission were estimated by defining two medical scenarios that would require high data rate communications between the spacecraft and Earth. One medical scenario involves a case of hydronephrosis (outflow obstruction of the kidney) that evolves into pyelonephritis (kidney infection), then urosepsis (systemic infection originating from the kidney), due to obstruction by a kidney stone. A second medical scenario involved the death of a crewmembers child back on Earth that requires behavioral health care. For each of these scenarios, a data communications timeline was created following the medical care described by the scenario. From these timelines, total medical data transfers and burst transmission rates were estimated. Total data transferred from the vehicle-to-ground were estimated to be 94 gigabytes (GB) and 835 GB for the hydronephrosis and behavioral health scenarios, respectively. Data burst rates were estimated to be 7.7 megabytes per second (MB/s) and 15 MB/s for the hydronephrosis and behavioral health scenarios, respectively. Even though any crewed Mars mission should be capable of functioning autonomously, as long as the possibility of communication between Earth and Mars exists, Earth-based subject matter experts will be relied upon to augment mission medical capability. Therefore, setting an upper boundary limit for medical communication rates can help factor medical system needs into total vehicle communication requirements

Introducing Parallelism to the Ranges TS

The current interface provided by the C++17 parallel algorithms poses some limitations with respect to parallel data access and heterogeneous systems, such as personal computers and server nodes with GPUs, smartphones, and embedded System on a Chip chipsets. In this paper, we present a summary of why we believe the Ranges TS solves these problems, and also improves both programmability and performance on heterogeneous platforms. The complete paper has been submitted to WG21 for consideration, and here we present a summary of the changes proposed alongside new performance results. To the best of our knowledge, this is the first paper presented to WG21 that unifies the Ranges TS with the parallel algorithms introduced in C++17. Although there are various points of intersection, we will focus on the composability of functions, and the benefit that this brings to accelerator devices via kernel fusion