Rare External Jugular Vein Pseudoaneurysm

External jugular vein pseudoaneurysm is a very rare cause of a neck mass due to the low pressure venous system. This case demonstrates a 27-year-old female who presented to the emergency department with a non-tender, compressible, left-sided neck mass that enlarged with valsalva and talking, and intermittent paresthesias. Upon workup, she was diagnosed with an external jugular vein pseudoaneurysm. Complications of this diagnosis are mentioned in the literature; however, most patients with an external jugular vein pseudoaneurysm or aneurysm can be safely discharged with close follow-up with a vascular surgeon

Collaborating Across Units to Support Digital Scholarship

In this session, participants shared strategies and best practices for collaborating across units to support digital scholarship. The leaders briefly described two recent examples of successful collaborations at Middlebury College, instituting Omeka support & running a Liberal Arts Data Bootcamp, before opening up for broader discussions and brainstorming

Enabling self, intimacy and a sense of home in dementia

Design and digital technologies to support a sense of self and human relationships for people living with dementia are both urgently needed. We present an enquiry into design for dementia facilitated by a public art commission for an adult mental health unit in a hospital in the UK. The interactive art piece was informed by the notion of personhood in dementia that foregrounds the person's social being and interpersonal relationships as sites where self is maintained and constructed. How clients, clients' family members and staff used the piece is reported and insights related to the notions of home, intimacy, possessions and self are presented. The art piece served as window on both dementia and the institution leading to a number of insights and implications for design

Comparing energy expenditure between the treadmill and elliptical trainer

The purpose of this study was to compare physiological responses during ET [elliptical trainer] and treadmill (TM) exercise at three intensities gauged using RPE. [This is an excerpt from the abstract. For the complete abstract, please see the document.

Retention of best practices by clinicians after knowledge transfer

This thesis examines the retention of best practices by clinicians after the implementation of an integrated care pathway for patients with congestive heart failure. While the literature suggests there are many reasons why the implementation of best practices is difficult, there is little information on the sustainability of best practices once implemented.Using a qualitative research design guided by Rogers’ theory of ‘Diffusion of Innovations’ the researcher interviewed seven clinicians who participated in the implementation of the pathway. A thematic analysis revealed several themes that ran throughout participants’ responses. While the participants indicated they see value in best practices, they also identified barriers to getting that knowledge into practice and keeping it there. A spectrum of factors, including individual autonomy, time, resources, organizational support and the organization of the system all played a role.In the end, participants revealed that although small pieces of the pathway remain in practice, the pathway itself is no longer used by clinicians to manage patients with congestive heart failure

Detrital Zircon Evidence for Mixing of Mazatzal Province Age Detritus With Yavapai Age (ca. 1700-1740 Ma) and Older Detritus in the ca. 1650 Ma Mazatzal Province of Central New Mexico, USA

Preliminary detrital zircon age distributions from Mazatzal crustal province quartzite and schist exposed in the Manzano Mountains and Pedernal Hills of central New Mexico are consistent with a mixture of detritus from Mazatzal age (ca. 1650 Ma), Yavapai age (ca. 1720 Ma.), and older sources. A quartzite sample from the Blue Springs Formation in the Manzano Mountains yielding 67 concordant grain analyses shows two dominant age peaks of 1737 Ma and 1791 Ma with a minimum peak age of 1652 Ma. Quartzite and micaceous quartzite samples from near Pedernal Peak give unimodal peak ages of ca. 1695 Ma and 1738 Ma with minimum detrital zircon ages of ca. 1625 Ma and 1680 Ma, respectively. A schist sample from the southern exposures of the Pedernal Hills area gives a unimodal peak age of 1680 Ma with a minimum age of ca. 1635 Ma. Minor amounts of older detritus (\u3e1800 Ma) possibly reflect Trans-Hudson, Wyoming, Mojave Province, and older Archean sources and aid in locating potential source terrains for these detrital zircon. The Blue Springs Formation metarhyolite from near the top of the Proterozoic section in the Manzano Mountains yields 71 concordant grains that show a preliminary U-Pb zircon crystallization age of 1621 ¿ 5 Ma, which provides a minimum age constraint for deposition in the Manzano Mountains. Normalized probability plots from this study are similar to previously reported age distributions in the Burro and San Andres Mountains in southern New Mexico and suggest that Yavapai Province age detritus was deposited and intermingled with Mazatzal Province age detritus across much of the Mazatzal crustal province in New Mexico. This data shows that the tectonic evolution of southwestern Laurentia is associated with multiple orogenic events. Regional metamorphism and deformation in the area must postdate the Mazatzal Orogeny and ca. 1610 Ma ¿ 1620 Ma rhyolite crystallization and is attributed to the Mesoproterozoic ca. 1400 ¿ 1480 Ma Picuris Orogeny

Variational anodic oxidation of aluminum for the formation of conically profiled nanoporous alumina templates

Thesis (M.S.) University of Alaska Fairbanks, 2012Anodic oxidation of metals, otherwise known as anodization, is a process by which the metal in question is intentionally oxidized via an electrochemical reaction. The sample to be oxidized is connected to the anode, or positive side of a DC power source, while a sample of similar characteristics is attached to the cathode or negative side of the same power source. Both leads are then immersed in an acidic solution called the electrolyte and a current is passed between them. Certain metals such as aluminum or titanium anodized in this way form a porous oxide barrier, the characteristics of which are dependent on the anodization parameters including the type of acid employed as the electrolyte, pH of the electrolyte, applied voltage, temperature and current density. Under specific conditions the oxide formed can exhibit highly ordered cylindrical nanopores uniformly distributed in a hexagonal pattern. In this way anodization is employed as method for nanofabrication of ordered structures. The goal of this work is to investigate the effects of a varied potential difference on the anodization process. Specifically to affect a self-assembled conical pore profile by changing the applied voltage in time. Although conical pore profiles have been realized via post-processing techniques such as directed wet etching and multi-step anodization, these processes result in pore dimensions generally increasing by an order of magnitude or more. To date there has been reporting on galvanostatic or current variations which directly effected the resulting pore profiles, but to our knowledge there has not been a reported investigation of potentiostatic or voltage variation on the anodization process. We strive to realize a conical pore profile in process with the traditional two-step anodization method while maintaining the smallest pore dimensions possible. Pores having diameters below 20nm with aspect ratios about 1.0 would be ideal as those dimensions would be much closer to some of the characteristic lengths governing the quantum confined spatial domain. Thus we set out to answer the question of what effect a time varied potential difference will have on the traditional two-step anodization method, a technique we refer to as variational iodization, and if in fact conically profiled nanopores can be realized via such a technique

A consideration of Gomphonema parvulum Kutz

This is a study of the variability of Gomphonema parvulum Kutz.During the summer of 1948, a biological survey of the Conestoga River Basin in eastern Pennsylvania was conducted by the Academy of Natural Sciences of Philadelphia which aimed at the establishment of biological standards for determining the health of a stream.In all, over 600 collections of diatoms were made. From the study of these collections, new evidences of affinities between several species were found and the wide variability of certain species especially was noted