J Am Geriatr Soc

R01 AG076234/AG/NIA NIH HHSUnited States/R21 AG068717/AG/NIA NIH HHSUnited States/R56 AG069880/AG/NIA NIH HHSUnited States/U18 DP006512/DP/NCCDPHP CDC HHSUnited States

Effect of Fly Ash and Un-crushed Coarse Aggregates on Characteristics of SCC

This research paper discusses the change in the workability and strength characteristics of Self Compacting Concrete (SCC) due to addition of fly-ash and use of un-crushed Coarse Aggregate (CA). Laboratory based experimental work was carried out by preparing 12 SCC mixtures among which six mixtures contained crushed aggregate and other six mixtures contained un-crushed coarse aggregate. A total of 550 kg/m3 binder content and fixed Water-Binder (W/B) ratio as 0.35 were used. Two mixtures were controlled by using Portland Cement (PC) and other ten mixtures contained PC and Fly Ash (FA). Slump flow time, slump flow diameter and J-ring height tests were conducted to study the fresh properties of SCC. Furthermore, compressive strength was calculated at 7, 14 and 28 days of curing. The outcomes indicated that the slump flow time, slump flow diameter and J-Ring height for all the mixes are within the limits specified by EFNARC guidelines. The compressive strength of SCCs depends upon dosage of fly ash. Compressive strength for SCCs with crushed CA was better than obtained in case of un-crushed CA. The maximum compressive-strengths were observed as 64.58 MPa and 58.05 MPa for SCC with crushed and un-crushed CA respectively

CONTEMPORARY GLOBALIZATION - CONFRONTATIONS OF IDEAS

In the last years the humanity assists to the fundamental changes in economy no matter the level from which is regarded. These changes are so fast and intensive that many times the humanity is confronting also with adaptation difficulties and also with thglobalization, antiglobalization, mondialization, internationalization

Hip Hop Culture in a Small Moroccan City

This paper explores Hip Hop culture by tracing its development from the global level through the Arab world to finally its manifestation in Morocco. Hip Hop culture is defined broadly as a wide range of artistic expressions-rap, graffiti, breakdancing, DJing, etc.-and also a mind-set or way of life. The focus on the Moroccan context starts at the national level, pointing out some of the key artists, issues Moroccan Hip Hop faces, and how this has been explored by scholars of Hip Hop. The paper focuses on an ethnographic exploration of Hip Hop culture in Ifrane, a small Moroccan city. An analytic approach suggested in Patti Lather\u27s 1991 book Getting Smart informs and expands the paper particularly by privileging the emancipatory power of Moroccan Hip Hop, creating a nuanced view of the impact of Hip Hop on the lives of youth in this small community. Finally, the paper employs a self-reflexive stance to critically view the author\u27s own position in the research project in order to name some of the challenges and contradictions of a white male American doing Hip Hop research in the Moroccan context

Validation of a new method for building a three-dimensional physical model of the skull and dentition

We present a new method for replicating the skull and occlusal surface with an accurate physical model that could be used for planning orthognathic surgery. The investigation was made on 6 human skulls, and a polyvinyl splint was fabricated on the dental cast of the maxillary dentition in each case. A cone beam computed tomogram (CBCT) was taken of each skull and a three-dimensional replica produced. The distorted dentition (as a result of magnification errors and streak artefacts) was removed from the three-dimensional model and replaced by new plaster dentition that was fabricated using the polyvinyl splint and a transfer jig replication technique. To verify the accuracy of the method the human skulls and the three dimensional replica model, with the new plaster dentition in situ, were scanned using a laser scanner. The three-dimensional images produced were superimposed to identify the errors associated with the replacement of the distorted occlusal surface with the new plaster dentition. The overall mean error was 0.72 and SD was (0.26) mm. The accuracy of the method encouraged us to use it clinically in a case of pronounced facial asymmetry

Rule 10b-5: Birth of the Concept of Market Insider and Its Application in a Criminal Case - United States v. Chiarella

This Note examines the necessity of the expansion of the market insider by the Second Circuit Court of Appeals in United States v. Chairella. It goes on to analyze whether or not the criminal conviction under Rule 10b-5 of Chiarella was appropriate given the lack of notice

Hip Hop Culture in a Small Moroccan City

This paper explores Hip Hop culture by tracing its development from the global level through the Arab world to finally its manifestation in Morocco. Hip Hop culture is defined broadly as a wide range of artistic expressions-rap, graffiti, breakdancing, DJing, etc.-and also a mind-set or way of life. The focus on the Moroccan context starts at the national level, pointing out some of the key artists, issues Moroccan Hip Hop faces, and how this has been explored by scholars of Hip Hop. The paper focuses on an ethnographic exploration of Hip Hop culture in Ifrane, a small Moroccan city. An analytic approach suggested in Patti Lather\u27s 1991 book Getting Smart informs and expands the paper particularly by privileging the emancipatory power of Moroccan Hip Hop, creating a nuanced view of the impact of Hip Hop on the lives of youth in this small community. Finally, the paper employs a self-reflexive stance to critically view the author\u27s own position in the research project in order to name some of the challenges and contradictions of a white male American doing Hip Hop research in the Moroccan context