Comprehensive School Physical Activity Programs: Background and Implications

Recent estimates suggest that youth spend approximately 80-93% of their working hours in a sedentary state, such as sitting or resting longer than usual (Institute of Medicine, 2013). Schools are conducive of this sedentary behavior and because of that, they have been identified as viable locations for children to be physically active. In order for schools to accommodate the daily physical activity guidelines for youth--60 minutes or more of moderate-to-vigorous physical activity--the Centers for Disease Control and Prevention has created a whole-of-school approach that aims to promote and achieve physical activity guidelines for youth throughout and beyond the school day. This whole-of-school approach, also known as Comprehensive School Physical Activity Program (CSPAP), is a multi-component behavioral intervention that is typically set forth by the physical education teacher and serves as a framework to increase physical activity in and outside of the classroom. As part of this backgrounder, I will provide an overview of a CSPAP, discuss the inner workings of its components, and supply a brief overview of each of the four contributors for this critical issue.Educatio

An automatic gore panel mapping system

The Automatic Gore Mapping System is being developed to reduce the time and labor costs associated with manufacturing the External Tank. The present chem-milling processes and procedures are discussed. The down loading of the simulation of the system has to be performed to verify that the simulation package will translate the simulation code into robot code. Also a simulation of this system has to be programmed for a gantry robot instead of the articulating robot that is presently in the system. It was discovered using the simulation package that the articulation robot cannot reach all the point on some of the panels, therefore when the system is ready for production, a gantry robot will be used. Also a hydrosensor system is being developed to replace the point-to-point contact probe. The hydrosensor will allow the robot to perform a non-contact continuous scan of the panel. It will also provide a faster scan of the panel because it will eliminate the in-and-out movement required for the present end effector. The system software is currently being modified so that the hydrosensor will work with the system. The hydrosensor consists of a Krautkramer-Branson transducer encased in a plexiglass nozzle. The water stream pumped through the nozzle is the couplant for the probe. Also, software is being written so that the robot will have the ability to draw the contour lines on the panel displaying the out-of-tolerance regions. Presently the contour lines can only be displayed on the computer screens. Research is also being performed on improving and automating the method of scribing the panels. Presently the panels are manually scribed with a sharp knife. The use of a low power laser or water jet is being studied as a method of scribing the panels. The contour drawing pen will be replaced with scribing tool and the robot will then move along the contour lines. With these developments the Automatic Gore Mapping Systems will provide a reduction in time and labor costs associated with manufacturing the External Task. The system also has the potential of inspecting other manufactured parts

Cluster or Capture? Manufacturing Foreign Direct Investment, External Economies and Agglomeration

This review of the external economies associated with manufacturing FDI in host economies argues that the balance of forces of internalisation and externalisation is currently skewed towards the former and the interests of MNEs rather than the latter and the interests of local and national communities. A stylised comparison of developmental and competition state interventions suggests that in the absence of effective and co-ordinated interventions by governments, there will commonly be a failure of the logic of internalisation to permit localised externalisation

Megalopolis unbound: Knowledge collaboration and functional polycentricity within and beyond the Yangtze River Delta Region in China, 2014

Recent work on world city networks, urban polycentricity and megapolitan urban forms share an interest in the economic functionality of inter-city linkages. The intersection of these bodies of literature is in the often overlooked defining features of megalopolitan forms – their being the ‘hub’ that links national to international urban systems and the ‘incubator’ within national urban systems (Gottmann, 1976). With this intersection in mind, this paper measures the functional polycentricity of China’s Yangtze River Delta Region (YRDR) at different geographical scales from an intercity knowledge collaboration perspective. The paper uses data on co-publications as an indicator of knowledge linkages between cities within and beyond this megalopolis. The YRDR can be seen as functionally polycentric at the megapolitan scale but this functional polycentricity decreases with increases in the geographical scale at which interurban linkages are considered. Furthermore, a multi-scalar analysis of functional polycentricity helps identify the hub role of Shanghai. The results show that Shanghai’s knowledge hub role is currently present at the national scale. It may take some time for Shanghai to become a knowledge hub at the global scale given its not-so-strong international links and relatively weak local links. The paper concludes with some suggestions for future research agendas

The Afterlife of Confederate Monuments

As communities increasingly remove Confederate monuments from public spaces, they must decide what to do with these troubled statues. Given the recent wave of monument removal, we consider how property law and other restrictions impact community decisions on the disposition of monuments removed from public spaces on two levels—by location and future owner. In considering the fate of removed monuments, we profile potential destinations including museums, battlefields, cemeteries, and even storage. Alongside these examples, we discuss how laws constrain (or fail to constrain) the options for new owners and the restrictions on where monuments can be relocated. Even where laws do not constrain their removal choices, communities may choose to relinquish ownership to a Confederate heritage organization (or to another governmental entity) to speed removal. While transferring ownership is initially appealing, surrendering ownership may not be the best long-term decision for a community. Communities can lose control over the display of transferred statues, which fails to address the root of the problem. Where possible, communities should retain ownership (and therefore control) of removed statues or consider how other property law tools, such as transfer agreements, can impose discipline on the new owners. Making considered decisions on both the future display and owner is critical to the overall removal movement and to ensure that the legacy of these troubled statutes is properly addressed

In vivo imaging of pyrrole-imidazole polyamides with positron emission tomography

The biodistribution profiles in mice of two pyrrole-imidazole polyamides were determined by PET. Pyrrole-imidazole polyamides are a class of small molecules that can be programmed to bind a broad repertoire of DNA sequences, disrupt transcription factor-DNA interfaces, and modulate gene expression pathways in cell culture experiments. The 18F-radiolabeled polyamides were prepared by oxime ligation between 4-[18F]-fluorobenzaldehyde and a hydroxylamine moiety at the polyamide C terminus. Small animal PET imaging of radiolabeled polyamides administered to mice revealed distinct differences in the biodistribution of a 5-ring β-linked polyamide versus an 8-ring hairpin, which exhibited better overall bioavailability. In vivo imaging of pyrrole-imidazole polyamides by PET is a minimum first step toward the translation of polyamide-based gene regulation from cell culture to small animal studies

On the structure of non-full-rank perfect codes

The Krotov combining construction of perfect 1-error-correcting binary codes from 2000 and a theorem of Heden saying that every non-full-rank perfect 1-error-correcting binary code can be constructed by this combining construction is generalized to the $q$-ary case. Simply, every non-full-rank perfect code $C$ is the union of a well-defined family of $\mu$-components $K_\mu$, where $\mu$ belongs to an "outer" perfect code $C^*$, and these components are at distance three from each other. Components from distinct codes can thus freely be combined to obtain new perfect codes. The Phelps general product construction of perfect binary code from 1984 is generalized to obtain $\mu$-components, and new lower bounds on the number of perfect 1-error-correcting $q$-ary codes are presented.Comment: 8 page

Gyrotron experiments employing a field emission array cathode

The design and operation of a field emission array (FEA) cathode and the subsequent demonstration of the first FEA gyrotron are presented. Up to 10 mA from 30 000 tips was achieved reproducibly from each of ten chips in a gyrotron environment, namely, a vacuum 1 x 10(-8) mbar, -50 kV potential with multiple chip operation, The design parameters of the FEA gun were similar to those of a magnetron injection gun with an achievable electron beam current of 50-100 mA and measured power 720 W cw. Coherent microwave radiation was detected in both TE(02) at 30.1 GHz and TE(03) at 43.6 GHz, with a starting current of 1 mA

Fabrication and performance analysis of 4-sq cm indium tin oxide/InP photovoltaic solar cells

Large-area photovoltaic solar cells based on direct current magnetron sputter deposition of indium tin oxide (ITO) into single-crystal p-InP substrates demonstrated both the radiation hardness and high performance necessary for extraterrestrial applications. A small-scale production project was initiated in which approximately 50 ITO/InP cells are being produced. The procedures used in this small-scale production of 4-sq cm ITO/InP cells are presented and discussed. The discussion includes analyses of performance range of all available production cells, and device performance data of the best cells thus far produced. Additionally, processing experience gained from the production of these cells is discussed, indicating other issues that may be encountered when large-scale productions are begun