NMR in amorphous vanadium alloys

Amorphous alloys of VAl and VSi have been prepared by a process of r.f. sputtering onto cryogenic substrates. The Nuclear Magnetic Resonance has been examined in an effort to understand how the electronic structure of these amorphous alloys compares to that of the corresponding crystalline alloys, and to extend the study of the electronic properties of these alloy systems into composition ranges where the crystalline alloys do not exist, because of solubility limits.;The Al(\u2727) and V(\u2751) Knight shifts were measured at 77(DEGREES)K and 300(DEGREES)K, for Al concentrations extending from 15 to 85 atomic percent, in amorphous VAl. The results are found not only to agree with those of the crystalline alloys below 40 atomic percent Al (the solubility limit), but to extend the crystalline behavior right into the region of immiscibility. In amorphous VSi only the V(\u2751) Knight shift was measured. The V(\u2751) Knight shift, before annealing, was found to be nearly constant with both temperature and alloy composition. After annealing the amorphous VSi alloys, however, a strong temperature dependence was observed in the V(\u2751) shift, probably due to the formation of the compound V(,3)Si upon crystallization.;These results are explained in terms of a model which treats the amorphous alloys as though they were crystalline but with an extended solubility range. The case of V(,3)Si is considered as an exception due to its peculiar crystal structure and resulting electronic behavior.;The V(\u2751) NMR linewidths were also measured in both amorphous VAl and amorphous VSi. These are discussed in terms of the short range order found in the amorphous alloys

Determining the Knowledge and Practices of Obstetrics Healthcare Professionals Regarding Maternal Intrapartum Pertussis Vaccination Administration

Pertussis is a contagious respiratory disease that can occur in all age groups. Signs and symptoms of pertussis, however, are worse in infants and young children; likewise, the rates of severe cases, hospitalizations, and deaths are higher in this group as well. Vaccination against pertussis is the most effective way to combat this illness. In the last 15 years, there have been a number of changes in the recommendations regarding vaccination against pertussis. In order for these recommendations to be followed, healthcare professionals must be aware of the guidelines as well as be knowledgeable about the condition they are trying to prevent. This study evaluated the knowledge and practice of obstetrics healthcare professionals in Bartlesville, Oklahoma, regarding maternal pertussis vaccination strategies and timing. It assessed their perceived knowledge and practice before an educational in-service regarding pertussis prevention strategies specifically related to pertussis vaccination and pregnancy. Immediately following the educational in-service, healthcare professionals were asked to report whether they had an increase in knowledge regarding pertussis and vaccination strategies and whether they plan to change their practice in the future as a result of information received. The participants of this study reported having an increase in knowledge regarding pertussis and vaccination strategies, as well as an intention to use the information in the future for patient education

Family Law

Family La

Family Law

Family La

THE ORPHAN AMONG US: AN EXAMINATION OF ORPHANS IN NEWBERY AWARD WINNING LITERATURE

Orphan stories in children’s literature are rich and complex, and they have historically permeated the pages of children’s books. The purpose of this study was to explore the use of orphans as protagonists in children’s award-winning literature through content analysis. This study utilizes all the Newbery Award winning books (1922 – 2011) as well as the Newbery Honor books of the last decade (2002 – 2011) to provide a wide and deep swath of novels in order to present both historical perspective and attention to current trends. Specifically, this study explores how orphans are portrayed in Newbery texts, considers the messages these books convey about orphans, and compares the literary orphans against their real life counterparts. This investigation also seeks to determine the efficacy of previously established paradigms of orphan stories when compared to Newbery award-winning texts. The data in this study demonstrate that the orphan narrative is a popular form of children’s literature in the Newbery collection. It is a common literary tool for Newbery authors, and it serves as a platform for writers to develop strong, determined, and resilient protagonists who overcome adversity. The study also suggests that while there are similarities between the portrayal of orphans in Newbery texts and real life orphans, there are some discrepancies, particularly in the literary orphan’s ability to overcome the obstacles he or she faces. Additionally, current paradigms of orphan narrative literature do not wholly capture this corpus of texts. Finally, recommendations for practical classroom applications of the Newbery orphan stories are introduced