14 research outputs found

    The Effect of a Selected Progressive Resistance Running Program on Circulorespiratory Efficiency, Power and Free Running Speed

    Get PDF
    The purpose of this investigation was to determine the effects of a selected progressive resistance running program on circulorespiratory efficiency, power, and free running speed of runners. A selected interval training program was employed to an accepted method of training. Forty-five mail, freshmen students at South Dakota State University were divided into two experimental groups and a control group. The subjects in the experimental groups participated in a six-week training program of either resistance running or interval training. All subjects were tested at the beginning of the investigation, immediately following completion of the training program, and again 10 days later. Oxygen debt repaid from a standardized treadmill run, power, and free running speed. The results of the findings indicated that the resistance running program had no significant effect on oxygen debt repaid, power, free running speed, and the elapsed time for the 600-yard run. This was indicated between the groups and within the group. The interval running group made statistically significant improvements when compared to the control group, from pre-test to initial post-test, or oxygen debt repaid, which indicated improvement in circulorespiratory efficiency. The interval running group also make a significant improvement when compared to the control group, from pre-test to final post-test for the 600-yard run. Whithin the interval running group statistically significant improvement was noted from pre-test to initial post-test for the 600-yard run

    Improved three-dimensional image of the tomographic inversion of the Arraiolos aftershock sequence.

    Get PDF
    This work puts in light the several steps followed to obtain a 3D velocity model in Arraiolos, a region located in central Portugal. After the earthquake of January 2018 occurred, a set of stations were deployed around the main shock area and has recorded the aftershock sequence during a period of six months. The first stage of this study used a set of data recorded along the 1st month by 21 temporary seismological stations. 317 aftershocks were used to invert a 3D P and S velocity model, using LOTOS program, and showing an agglomeration of events in one local point leading to a poor resolution. Therefore, we added more stations and data to the second stage of study by integrating 437 aftershocks recorded during a period of 6 months by a set of 34 stations. The tomographic inversion of this extended aftershock sequence has shown a significant improvement of the 3D velocity model resolution and suggesting an alignment of the seismic events cluster. However, the imaged crustal volume was still too small and possessing low resolution on the edges of the area. To fix this issue, additional data and seismological stations were integrated to the study in order to increase the area of interest and cover it entirely in terms of ray density. The step which we are currently conducting concerns the location of new events followed by their integration to the tomographic study using IPMA and DOCTAR station network records. Since the later phases PmP and SmS has the potential to increase the ray coverage as similarly as the resolution of an area, we will hopefully obtain, after their integration, significant improvements in terms of accuracy and reliability of the crustal image. The main purpose of this new stage of study is to finally provide significant interpretations and figure out precisely the tectonic processes having generated the Arraiolos seismicity. Thanks are due to FCT for the financial support to the ICT project (UID/GEO/04683/2013) with the reference POCI-01- 0145-FEDER-007690, to the IDL project (UIDB/50019/2020 – IDL)

    Intelligent Design: God and/or Nature: A podcast

    No full text
    The origin of the world has always been a highly contested and debated topic, for many reasons. Intelligent Design is one of the more well-known alternatives to evolution, despite the lack of scientific evidence behind it. In this podcast, we explore how people\u27s preconceived notions and beliefs play a role in how they interpret information, specifically when it comes to how the world began

    Social media policy analysis for primary and secondary public schools and districts

    No full text
    Social networking sites are ubiquitous channels for communication. Adoption and use are widespread, and demographic characteristics of adopters are diffuse. With social networking sites an indelible component of the contemporary communication and information landscape, information policies have been enacted to inform, guide and regulate adopters' use in a variety of settings. Taking a census approach, this study investigates the state of social media policies in a particular setting: public schools and public school districts in the state of Tennessee. Public schools present a unique lens to examine social media policies as the contexts (intra- and extramural) and potential stakeholders addressed (e.g., students, teachers, administrators, parents, volunteers) are diverse. In particular, the age of minor students presents an interesting challenge as policies may address their social networking activities, even though students may be too young, per the terms of service agreements of social networking applications, to participate. The poster to be presented will report preliminary findings on the extent, scope and content of social media policies for 146 school districts and 1,744 public schools in Tennessee

    Social media policy analysis for primary and secondary public schools and districts

    No full text
    Social networking sites are ubiquitous channels for communication. Adoption and use are widespread, and demographic characteristics of adopters are diffuse. With social networking sites an indelible component of the contemporary communication and information landscape, information policies have been enacted to inform, guide and regulate adopters' use in a variety of settings. Taking a census approach, this study investigates the state of social media policies in a particular setting: public schools and public school districts in the state of Tennessee. Public schools present a unique lens to examine social media policies as the contexts (intra- and extramural) and potential stakeholders addressed (e.g., students, teachers, administrators, parents, volunteers) are diverse. In particular, the age of minor students presents an interesting challenge as policies may address their social networking activities, even though students may be too young, per the terms of service agreements of social networking applications, to participate. The poster to be presented will report preliminary findings on the extent, scope and content of social media policies for 146 school districts and 1,744 public schools in Tennessee

    Analyses of natural gases, 1994-95

    No full text

    Analyses of natural gases, 1990 /

    No full text
    Distributed to depository libraries in microfiche.Mode of access: Internet

    Three-dimensional crustal image of Arraiolos aftershock sequence, earthquake of M=4.9, in Alentejo region, Portugal.

    No full text
    This work presents the results obtained after the Arraiolos aftershock sequence tomographic inversion in terms of velocity th distribution. The study deals with the 4.9 ML magnitude earthquake (Mw4.3, Vales et al., 2018) which occurred on January 15 , 2018 at 11:51 UTC in Aldeia da Serra in the Northeast of Arraiolos (Alentejo, Portugal). The hypocentral location, determined by the Instituto Português do Mar e da Atmosfera (IPMA), has coordinates 38.79 N, 7.93 W at 11 km depth. After the main shock occurred, 437 events were recorded and inverted in order to obtain a three-dimensional velocity image of the region. These records were performed by 34 temporary stations during a period of 6 months including IDL and Evora stations. On a first stage of study, preliminary results were presented by Hamak et al. (2020) coming from the tomographic inversion of 317 aftershocks recorded by 21 short-period stations (CDJ, 2.0 Hz), of the Instituto Dom Luiz (IDL, Lisbon), along a month of records. After analysing the obtained three-dimensional velocity model, a poor ray coverage has been noticed leading to a poor model resolution especially on the edges of the studied area. Thus, additional stations and local data have been integrated to this second stage of study in order to increase the ray coverage which leaded to a more accurate three-dimensional velocity model. Local Tomography Software (LOTOS program, Ivan Koulakov (2009)) was used to perform all the inversions, in order to relocate accurately the aftershock sequence and obtain velocity contrast over the entire region of interest. This program gives the ability to perform a simultaneous inversion of sources location and velocity model. Comparison between preliminary and new aftershock sequence inversion results are presented in this study in order to show the evolution and improvement of the 3D velocity model quality. Nevertheless, despite the increasing model resolution, the studied area is still too small for a good understanding of the complex tectonic of the area. Therefore, in order to extend the area of study, local, regional and teleseismic events must be integrated. As tomographic resolution is related to waves propagation, as this second stage of study demonstrated, by increasing the ray density of the region a more accurate and reliable 3D velocity model will be obtained. Thus, the tectonic features responsible for the seismic activity in the region will be better constrain.The work was supported by the Portuguese Foundation for Science and Technology (FCT) projects UIDB/04683/2020 - ICT (Institute of Earth Sciences, Évora) and UIDB/50019/2020 – IDL (Instituto Dom Luiz, Lisbon). We would like to thank, as well, the ICT (U. Évora), IDL (U. Lisbon) and IPMA (Lisbon) group who has participated to the seismic campaign
    corecore