What is a Viola?

A viola is a string instrument similar to a violin but larger in size, producing a deeper sound to compliment the arrangement. Two curled holes, allowing some light inside the hallowed body, just delicate enough to float, perched under the chin of its commander. [excerpt

Optimizing Peripheral Neuropathy Management Through Vitamin B12 Screening in Adults With Type Two Diabetes Mellitus Taking Metformin

Peripheral neuropathy is a significant co-morbidity for patients with diabetes and as early as 1969, metformin was linked to reductions in vitamin B12, leading to deficiency. Vitamin B12 deficiency causes increased levels of homocysteine and methylmalonyl-CoA which are toxic to the nervous system and therefore can contribute to demyelination. This quality improvement study aimed to optimize the management of peripheral neuropathy symptoms by implementing a process to identify patients with clinical or subclinical vitamin B12 deficiency and initiating replacement therapy. Adult patients presenting for a scheduled office visit with a diagnosis of type two diabetes and are taking metformin or medications containing metformin were included in the study. The Michigan Neuropathy Screening Instrument (MNSI) and the NC-stat DPNcheck was used to evaluate symptoms of neuropathy, and serum vitamin B12 levels were used to evaluate vitamin B12 status. The implementation of this process increased the identification of patients with low vitamin B12, thereby reducing the risk of patients in the sample population from developing peripheral neuropathy, reducing symptoms of peripheral neuropathy, or limiting the progression of peripheral neuropathy symptoms. This therefore, has the potential to improve the quality of life for patients living with type two diabetes that are taking metformin

Geology of North Craters of the Moon National Monument, Idaho

The purpose of the investigation was to map the geology of the north end of Craters of the Moon National Monument and surrounding area. A stratigraphic sequence of Late Paleozoic sedimentary and Tertiary volcanic rocks was compiles and the structures of these rocks and contact relationships with intrusions were delineated. Grade and facies of contact metamorphism were defined. The Snake River Plain basalts were also mapped. The sources of these flows were determined where possible. Preexisting structures and relationships of vents to earlier faulting were explored in ascertaining extensions of the Great Rift Zone into the Pioneer Mountains. Petrographic descriptions of the rock units were completed. Study of the economic geology was not undertaken. The interested reader is referred to Nelson (1969) for descriptions of the mineral deposits in the Lava Creek Mining District

Hydrological connectivity of soil pipes determined by ground-penetrating radar tracer detection

Soil pipes are common and important features of many catchments, particularly in semi-arid and humid areas, and can contribute a large proportion of runoff to river systems. They may also significantly influence catchment sediment and solute yield. However, there are often problems in finding and defining soil pipe networks which are located deep below the surface. Ground penetrating radar (GPR) has been used for non-destructive identification and mapping of soil pipes in blanket peat catchments. While GPR can identify subsurface cavities, it cannot alone determine hydrological connectivity between one cavity and another. This paper presents results from an experiment to test the ability of GPR to establish hydrological connectivity between pipes through use of a tracer solution. Sodium chloride was injected into pipe cavities previously detected by the radar. The GPR was placed downslope of the injection points and positioned on the ground directly above detected soil pipes. The resultant radargrams showed significant changes in reflectance from some cavities and no change from others. Pipe waters were sampled in order to check the radar results. Changes in electrical conductivity of the pipe water could be detected by the GPR, without data post-processing, when background levels were increased by greater than approximately twofold. It was thus possible to rapidly determine hydrological connectivity of soil pipes within dense pipe networks across hillslopes without ground disturbance. It was also possible to remotely measure travel times through pipe systems; the passing of the salt wave below the GPR produced an easily detectable signal on the radargram which required no post-processing. The technique should allow remote sensing of water sources and sinks for soil pipes below the surface. The improved understanding of flowpath connectivity will be important for understanding water delivery, solutional and particulate denudation, and hydrological and geomorphological model development

Correlation between Voronoi volumes in disc packings

We measure the two-point correlation of free Voronoi volumes in binary disc packings, where the packing fraction $\phi_{\rm avg}$ ranges from 0.8175 to 0.8380. We observe short-ranged correlations over the whole range of $\phi_{\rm avg}$ and anti-correlations for $\phi_{\rm avg}>0.8277$. The spatial extent of the anti-correlation increases with $\phi_{\rm avg}$ while the position of the maximum of the anti-correlation and the extent of the positive correlation shrink with $\phi_{\rm avg}$. We conjecture that the onset of anti-correlation corresponds to dilatancy onset in this system