I have worked on the AHRA staff for over 6 years now, and I am still regularly blown away by how engaged our members are and how much you want to genuinely help others. Many of you have cited, in articles or in conversation, that you entered the field of healthcare because you wanted to help others (ie, patients). But as you have become leaders, you have helped more than just your patients; you also help your employees develop their careers to ensure the next generation of leaders is prepared. There are many great examples of that within the pages of this issue, from keeping employees engaged so they can actualize their potential (p. 24), to mentoring those new to the field (p. 32), to identifying and encouraging the qualities within your staff and yourself to become a "SuperTech" in providing the best patient care possible (p. 41). It is not news to any of you that there are many challenges facing the world of imaging management right now. The next generation of leaders will continue to face these challenges, and showing them how to respond to challenges will help prepare them for future success. Thinking outside the box is a particularly important skill to help your future leaders develop, so they are equipped to face these challenges in new and inventive ways. In "Applying the Theory of Constraints in Radiology," (p. 13), David Goodmansen shares his imaging departments solution to this problem using a systems-based approach most commonly seen in manufacturing.
(US20160083723) Described herein are methods for identifying nucleic acid sequences that modulate the function of a cell, the expression of a gene in a cell, or the biological activity of a target polypeptide in a cell. The methods involve the use of double stranded RNA expression libraries, double stranded RNA molecules, and post-transcriptional gene silencing techniques.
Sun D.;Helmberger D.;Lai V. H.;Gurnis M.;Jackson J. M.;Yang H.‐Y.
来源期刊：Geophysical Research Letters
年/卷/期：2019 / 46 / 6
At the core‐mantle boundary, most observed ultralow velocity zones (ULVZs) cluster along the edges of the large low shear velocity provinces (LLSVPs) and provide key information on the composition, dynamics, and evolution of the lower mantle. However, their detailed structure near slab‐like structures beneath the mid‐Pacific remains particularly challenging because of the lack of station coverage. While most studies of ULVZs concentrate on SKS‐complexity, here we report on the multipathing of ScS, which expands the sampling for ULVZs. We find the strongest multipathing along a ULVZ patch located just south of Hawaii and the far northeastern edge of the LLSVP, in a zone ~200?km in width and extending 600?km southward. The anomalous ScS travel times and distorted Sdiff waveforms further reveal patches interrupted by observed enhanced D″ indicative of slab‐debris influence on the complexity of the northeastern boundary of the mid‐Pacific LLSVP.
Unless you've been off the grid (way off] or maybe off planet, you know that the political campaigns are over and the election results are (almost] final. ? If you are a Democrat, you might be pleased that the 2018 midterm elections have returned control of the 2019-2020 House of Representatives to your party.
来源期刊：Carbohydrate Polymers: Scientific and Technological Aspects of Industrially Important Polysaccharides
Non-degradable plastic food packages threaten the security of environment. The cost-effective and biodegradable polymer films with good mechanical properties and low permeability are very important for food packages. Among of biodegradable polymers, PVA/chitosan (CS) biodegradable films have attracted considerable attention because of feasible film forming ability. However, PVA/CS biodegradable films suffered from poor mechanical properties. To improve mechanical properties of PVA/CS biodegradable films, we developed SiO2 in situ to enhance PVA/CS biodegradable films via hydrolysis of sodium metasilicate in presence of PVA and chitosan solution. The tensile strength of PVA/CS biodegradable films was improved 45% when 0.6 wt.% SiO2 was incorporated into the films. Weight loss of PVA/CS biodegradable films was 60% after 30 days in the soil. The permeability of oxygen and moisture of PVA/CS biodegradable films was reduced by 25.6% and 10.2%, respectively. SiO2 in situ enhanced PVA/CS biodegradable films possessed not only excellent mechanical properties, but also barrier of oxygen and water for food packages to extend the perseveration time.