Two hundred passage three-way valve: Fraction collector

This paper describes the design and operation of a fraction collector used to direct flow of separated biological materials from 197 capillary tubes to either a collection tray or to a waste tank. This mechanism uses a 28-volt dc gear motor driving twin cams to force 197 needles through a self-sealing silicone rubber septum, where they inject the material in 197 separate pockets in a collection tray. The position of the collector tray is sensed by two optical limit switches. The time sequences are controlled automatically by an electronics control monitoring module

Magnetic Susceptibility of Collinear and Noncollinear Heisenberg Antiferromagnets

Predictions of the anisotropic magnetic susceptibility chi below the antiferromagnetic (AFM) ordering temperatures TN of local moment Heisenberg AFMs have been made previously using molecular field theory (MFT) but are very limited in their applicability. Here a MFT calculation of chi(T<=TN) is presented for a wide variety of collinear and noncollinear Heisenberg AFMs containing identical crystallographically equivalent spins without recourse to magnetic sublattices. The results are expressed in terms of directly measurable experimental parameters and are fitted with no adjustable parameters to experimental chi(T<=TN) data from the literature for several collinear and noncollinear AFMs. The influence of spin correlations and fluctuations beyond MFT is quantified by the deviation of the theory from the data. The origin of the universal chi(T<=TN) observed for triangular lattice AFMs exhibiting coplanar noncollinear 120 degree AFM ordering is clarified.Comment: 5 pages, 5 figure

Descriptions of Nymphal Instars of \u3ci\u3eAbedus Breviceps\u3c/i\u3e (Hemiptera: Belostomatidae)

The 1st-5th instars of Abedus breviceps Still, collected from a Texas population, are described and illustrated. They can be separated most easily by overall body length and width, and by the length of the mesonotal wing pads

Letter to Sonora Dodd from Willametta Keffer, April 18, 1975

Letter to Sonora Dodd from Willametta Keffer (Mrs. Martin B. Keffer), with envelope.https://digitalcommons.whitworth.edu/fathers-day-correspondence/1181/thumbnail.jp

The Epidemiology of Clostridioides Difficile in Nebraska - A Descriptive Study Between 2018-2020

Objectives: Clostridioides difficile (C. diff) is a common but challenging infection both financially and medically. Due to these difficulties, Clostridioides difficile infection (CDI) caused by C. diff is a mandatory reportable disease in Nebraska and as such has been a priority disease targeted by various disease control practices across many hospitals. All CDI laboratory results are reported electronically through the Nebraska Electronic Disease Surveillance System (NEDSS). However, capturing and conceptualizing the true burden of CDIs in Nebraska has not been adequately accomplished since monitoring of CDIs began. The objective of this study is to examine the trends of C. diff infections and related deaths in Nebraska from 2018-2020. In addition, this study seeks to create a system to track CDIs in Nebraska through Geographic Information System (GIS) mapping for better conceptualizing of CDI burden in the state. Methods: To examine the burden of C. diff on Nebraska, descriptive epidemiology using lab results reported in NEDSS from 2018-2020 and deaths reported with CDI association during the same timespan were performed using the SAS analysis tool. Social vulnerability index (SVI) provided by the Center for Disease Control and Prevention (CDC) was used to compare varying counties and CDI counts. An interactive map using GIS was created to document and visualize CDI prevalence of 2020 cases across the state of Nebraska. Results: 8,334 CDI cases were recorded during the three-year span with case counts decreasing 36.5% from 2018-2020. The three-year prevalence rate for Nebraska was 459.07 per 100,000. Yearly incidence rates decreased yearly from 181.56 to 130.42 per 100,000 over the three-year span. 127 CDI-associated deaths were identified between 2018-2020 with increasing and decreasing numbers and rates yearly. Demographic information including gender, age, specimen/test type, race, ethnicity, and infection type of all 8,334 cases were recorded and reported. In addition to demographics, over 600 medical facilities and nursing homes were identified and stored into the state’s system for future identification of CDI case locating. ANOVA and logistic regression analysis indicated that residents of high-risk SVI counties were less likely to have a CDI than both moderate and low-risk SVI county residents. Lastly, an interactive GIS map was created depicting 2020 case demographics and rates as well as case numbers and rates by local health department (LHD) jurisdiction. Conclusion: The overall burden of CDIs has been decreasing in Nebraska since 2018, however death counts and rates have remained similar. While complications associated with CDIs due to possible comorbidities may be harder to predict and prevent, this study has shown the positive effect of antimicrobial stewardship on CDI prevalence statewide. Case demographics that have been recorded as well as SVI analysis by this study have created a baseline understanding of at-risk populations in Nebraska and when combined with the GIS map can be used to locate CDI outbreaks and decrease response time. Furthermore, the creation of the CDI GIS map has created an efficient means of disease tracking and monitoring, and specifically for all common and reportable healthcare-associated infections (HAIs) in Nebraska as it can be used as a foundational template. Overall, this study was able to successfully describe the epidemiological situation of Clostridioides difficile in Nebraska

FROM THE BACK OFFICE TO THE FRONT LINES OSS: Potential Land Mines on the Front Lines

The Telecommunications Act of 1996 struck a bargain that allowed Bell Atlantic and the other Regional Bell Operating Companies ( RBOCs ) to gain entry into the long distance business by opening their monopoly local exchange markets to meaningful competition. A key aspect of the market-opening process is that the RBOCs, as well as generally all Incumbent Local Exchange Carriers ( ILECs ) are required to provide new Competitive Local Exchange Carriers ( CLECs ) access to the Operations Support Systems ( OSS ). The incumbents use OSS to serve their customers at quality levels equal to what the incumbent provides to itself

Forestry

In this Bulletin an effort will be made to give an accurate history of the work in forest tree culture for the past year, together with observations on plantations visited, and suggestions based upon them. The tables included show the growth of the different species during the several months of 1889 and 1890, and they should be studied in connection with the weather record for the two years