Causational Analysis and Rectification of Issues Concerning Scale Formation on Hot-Rolled Straight Bar Product and its Effects on Ultrasonic Testing

At Charter Steel\u27s NDT Processing Plant located in Cleveland, Ohio, a concern has arisen regarding the recently implemented bar straightening and UT (Ultrasonic Testing) equipment. A substantial amount of mill scale, which is typically removed during the straightening process, is persisting on the bar’s surface throughout most of the NDT procedure. This lingering scale has been observed to flake off once inside the UT equipment, introducing unwanted noise and phantom peaks into the UT readings. Additionally, thick mill scale has been identified as a source of background interference in the received data. In contrast, bars that have been subjected to sandblasting (resulting in a scale-free surface) exhibit minimal to no background noise. The primary objective of this project is to develop cooling procedures to be employed during the SBQ hot rolling process. These procedures aim to minimize noise in UT measurements while considering the associated costs related to alterations in corrosion resistance and changes in water volume used for cooling

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

Self-assembled hydrogels utilizing polymer–nanoparticle interactions

Mouldable hydrogels that flow on applied stress and rapidly self-heal are increasingly utilized as they afford minimally invasive delivery and conformal application. Here we report a new paradigm for the fabrication of self-assembled hydrogels with shear-thinning and self-healing properties employing rationally engineered polymer–nanoparticle (NP) interactions. Biopolymer derivatives are linked together by selective adsorption to NPs. The transient and reversible interactions between biopolymers and NPs enable flow under applied shear stress, followed by rapid self-healing when the stress is relaxed. We develop a physical description of polymer–NP gel formation that is utilized to design biocompatible gels for drug delivery. Owing to the hierarchical structure of the gel, both hydrophilic and hydrophobic drugs can be entrapped and delivered with differential release profiles, both in vitro and in vivo. The work introduces a facile and generalizable class of mouldable hydrogels amenable to a range of biomedical and industrial applications.Wellcome Trust-MIT Postdoctoral FellowshipMisrock Foundation (Cancer Nanotechnology Postdoctoral Fellowship)United States. Dept. of Defense. Congressionally Directed Medical Research Programs (Postdoctoral Fellowship Award W81XWH-13-1-0215)National Institutes of Health (U.S.) (NIH-R01 DE016516

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