Public Personnel Update

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Exploring the Program-Site Alliance: Building Partnerships Between Counseling Programs and Fieldwork Sites

Practicum and internship experiences are critical in students’ professional development in counselor education programs, and the dynamics that occur between programs and field sites can impact these experiences. A program-site alliance is a measure of how well these entities work together. Using Interpretive Phenomenological Analysis, the authors interviewed five site supervisors and found five themes (Site Supervisor Role, Communication Within the Program-Site Alliance, Independent Mutualism, Regulated Support, and Inconsistency Between Program-Site Alliance) capturing the essence of the program-site relationship. The authors explore implications for practice and future research

Coherent Excitonic Coupling in an Asymmetric Double InGaAs Quantum Well Arises from Many-Body Effects

We study an asymmetric double InGaAs quantum well using optical two-dimensional coherent spectroscopy. The collection of zero-quantum, one-quantum, and two-quantum two-dimensional spectra provides a unique and comprehensive picture of the double well coherent optical response. Coherent and incoherent contributions to the coupling between the two quantum well excitons are clearly separated. An excellent agreement with density matrix calculations reveals that coherent interwell coupling originates from many-body interactions

Applying the logic of sample surveys to qualitative case studies: The case cluster method

This is the publisher's version, also available electronically from "http://www.jstor.org"

Bundling of actin filaments by aorta caldesmon is not related to its regulatory function

AbstractCa2+-sensitive thin filaments from vascular smooth muscle were disassembled into their constituent proteins, actin, tropomyosin and caldesmon. Caldesmon bound to both actin and to actin-tropomyosin and inhibited actin-tropomyosin activation of skeletal muscle myosin MgATPase. It also promoted the aggregation of actin or actin-tropomyosin into parallel aligned bundles. Quantitative electron microscopy measurements showed that with 1.1 μM actin-tropomyosin, 1.6 ± 0.5% (n = 3) of the filaments were in bundles. At 0.073 μM, caldesmon inhibited MgATPase activity by 50%, whereas bundling was 3.0 ± 1.3% (n = 4). At 0.37 μM caldesmon, MgATPase inhibition was 83% while 28.1 ± 6.9% (n = 4) of filaments were in bundles. Experiments at 4.4 μM in which MgATPase and bundling were measured in the same samples gave similar results. Small bundles of 2–3 filaments showed the most frequent occurrence at 1.1 μM actin. At 4.4 μM actin the most common bundle size was 3-5 filaments, with the occasional occurrence of large bundles consisting of up to 120 filaments. The incidence of bundling was the same in the presence and absence of tropomyosin. Thus caldesmon can induce the formation of actin bundles but this property bears no relationship to its inhibition of MgATPase activity

From Readiness to Action: Social Justice Training in Practicum

Social justice is an imperative within counseling and is recognized through the American Counseling Association\u27s code of ethics, nationally endorsed competencies, and the Council for Accreditation of Counseling and Related Educational Programs. The authors completed a phenomenological study exploring the experience of five master’s-level counseling students in their practicum course relative to their development of a socially just counseling approach. The authors identified themes to provide a textural-structural description of how students experienced the transition towards social action. Moving from readiness to action encompassed previous experiences, the learning community, and change agents including awareness, responsibility, motivation, and comfort. Implications for educators and supervisors of professional counselors are provided

Comparison of Methane Production from Bench- and Sub Pilot-Scale Anaerobic Digesters

Design and construction of full-scale anaerobic digesters that co-digest manure with other substrates, such as food processing wastes, is challenging because of the large number of potential mixtures that can be fed to the digester. In this work we examine the relationship between results from bench-scale methods such as biochemical methane potential assays (BMPs) and sub pilot-scale reactors. The baseline feedstock for this study was beef manure from concrete feedlot pens (open and covered) in eastern Iowa. Additional co-digestion substrates tested were short-fiber cardboard, corn processing wastewater, enzyme processing wastewater and lagoon liquid. Substrates were characterized for total solids (TS), volatile solids (VS), chemical oxygen demand (COD), pH, alkalinity, and ammonia, after which BMPs were conducted on all substrates. Based on the BMP and anaerobic toxicity assay (ATA) results, a mixture was created and evaluated using BMPs and tested in 100-L sub pilot-scale reactors. This study showed that results from BMPs of feedstock co-digestion mixtures accurately estimated the range of methane produced from three 100-L, plug flow reactors

Approaches for Selecting Anaerobic Digestion Co-Substrates for a Full-Scale Beef Manure Digester Using Biochemical Methane Potentials and Anaerobic Texicity Assays

Design and construction of full-scale anaerobic digesters that co-digest manure with various materials requires analysis of each substrate. Substrate combinations should be analyzed through a scale up procedure in which substrates are characterized, and then evaluated using biochemical methane potential assays (BMPs) and anaerobic toxicity assays (ATAs). The BMPs provide a preliminary indication of the biodegradability of a substrate and of its potential to produce methane via anaerobic digestion, while ATAs determine the degree to which a particular substrate inhibits methane production. Mixture combinations that perform well in BMPs and ATAs should be tested in laboratory-scale anaerobic digesters. Once proven in lab-scale reactors for at least three hydraulic retention times, the best mixture should be tested in a pilot-scale reactor. This paper focuses on the first steps in this process using BMPs and ATAs results to select mixtures for laboratory-scale digester testing. The baseline feedstock was beef manure obtained from concrete feedlot pens (open and covered) in eastern Iowa. Various bedding materials were available, including oat hulls, corn stover, and wood shavings. To provide additional energy production, industrial byproducts from cardboard manufacturing, enzyme production, and corn and soybean processing were also potential substrates. Substrates were characterized for TS, VS, COD, pH, alkalinity, and ammonia. Then BMPs were completed on all substrates and ATAs were performed as needed. The results reported here were used to develop mixtures for use in laboratory-scale anaerobic digester testing

Comparisons of Temporal and Spatial Trends in the Spatially Complete Global Spectral Surface Albedos Products

Five years of spatially complete snow-free land surface albedo data have been prepared using high quality white-sky and black-sky land surface albedo observations (MOD43B3) from the MODIS instrument aboard NASA's Terra satellite platform. The data were generated using an updated ecosystem-dependent temporal interpolation technique. In this paper, we describe the refinements in the technique and the creation of a spatially complete snow-free five-year aggregate climatology product. This paper also describes an error analysis of the interpolation technique. The filled albedo products are examined through comparisons of temporal and spatial trends for pixels that have been filled versus pixels that have been retained in the original MOD43B3 values. The variability in the trends showcase how the filling technique maintains the pixel-level spatial, spectral, and temporal integrity of the MOD43B3 data. These comparisons are made for both a single-year of filled data, year 2002, and for the five-year aggregate climatology product