What is a Christian Teacher to Do with Louise Rosenblatt’s Transactional Theory of Reading?

In this theoretical analysis, the authors explore the question, What is a Christian teacher educator to do with Louise Rosenblatt’s transactional theory of reading? They begin by outlining the primary components of Rosenblatt’s transactional theory, focusing on reading as a transaction and the efferent and aesthetic stances. Next, they discuss who they are as teacher educators and former students, how their faith backgrounds intersect with Rosenblatt’s work, and the approach they took to address areas of tension that they and other Christian educators have experienced with Rosenblatt’s theory. Finally, they conclude by discussing implications of Rosenblatt’s work for reading scripture, identifying both the strengths and limitations of her theory, along with strategies for inviting students to discuss this issue at faith-based institutions

Apparent Seasonal Cycle in Isotopic Discrimination of Carbon in the Atmosphere and Biosphere Due to Vapor Pressure Deficit

We explore seasonal variability in isotopic fractionation by analyzing observational data from the atmosphere and the biosphere, as well as simulated data from a global model. Using simulated values of atmospheric CO2 and its carbon isotopic composition, we evaluated different methods for specifying background concentrations when calculating the isotopic signature of source CO2 (δs) to the atmosphere. Based on this evaluation, we determined that free troposphere measurements should be used when available as a background reference when calculating δs from boundary layer observations. We then estimate the seasonal distribution of δs from monthly climatologies derived from several atmospheric sampling sites. This approach yields significant seasonal variations in δs with more enriched values during the summer months that exceed the uncertainty of δs estimated for any given month. Intra-annual measurements of δ13C in the cellulose of Pinus taeda growing in the southeastern U.S. also reveal seasonal isotopic variations that are consistent in phase but not necessarily amplitude with atmospherically derived estimates of δs. Coherent seasonal patterns in δs inferred from the atmosphere and observed in the biosphere were not consistent with the seasonal isotopic discrimination simulated by a commonly used biosphere model. However, δs seasonality consistent with observations from the atmosphere and biosphere was retrieved with a revised biosphere model when stomatal conductance, and thus isotopic discrimination, was allowed to vary in response to vapor pressure deficit rather than relative humidity. Therefore, in regions where vapor pressure deficit and relative humidity are positively covariant over the growth season, such as the sub-tropics, different stomatal conductance models may yield very different estimates of CO2 and H2O exchange between the biosphere and atmosphere

Uncovering and Documenting the Acequia de Valero on the Grounds of the Planned Civic Park at the Henry B. Gonzalez Convention Center Expansion Project, San Antonio, Bexar County, Texas

Project Control (the CLIENT) working on behalf of the City of San Antonio contracted with Raba Kistner Environmental, Inc. (RKEI), for the Henry B. Gonzalez Convention Center Expansion Project, to perform archaeological investigations and monitoring associated with the installation of a gas line and gas tie-in within the boundaries of the Convention Center. The proposed gas line route had the potential to encounter a Spanish Colonial acequia, known as the Acequia Madre de Valero or the Acequia Madre del Valero (41BX8). The acequia is a Spanish Colonial irrigation ditch dating to approximately 300 years before present. Recent investigations have found that the acequia split to form two branches south of the project area. The branch running through the project area is referred to as the Acequia de Valero. Project Control requested that RKEI monitor the trenching associated with the gas line installation to ensure that the feature was not impacted during trenching. Another goal of the archaeological monitoring was to document the feature if encountered. Additional services related to the re-discovery of the acequia were suggested at this time. The COSA-OHP and THC recommended that a Ground Penetrating Radar (GPR) survey be implemented in an effort to determine the location of the acequia. Trenching followed after the GPR data was processed in an effort to relocate the portion of the Acequia Madre del Alamo (41BX8) passing through the property. Once sections of the acequia were uncovered, RKEI was present on site to monitor grading activities to ensure that area of the acequia alignment was not impacted. These services were added to the initial scope and permit obtained for the archaeological monitoring of the gas line installation. During later grading activities during the Convention Center Expansion Project, contractors encountered a stone-line well. The City of San Antonio Office of Historic Preservation (COSA-OHP) and the Texas Historical Commission (THC) requested that the well be documented prior to backfilling. The gas line monitoring was conducted over the course of two days in mid-October 2016. The documenting of the historic well, exploratory trenching for the acequia, and monitoring of the grading activities was conducted during late November 2016 to early January 2017. All portions of the investigations were conducted under Texas Antiquities Permit Number 7813. Steve A. Tomka served as the Principal Investigator. Kristi Miller Nichols was the Project Archaeologist during the gas line installation. Mark P. Luzmoor served as Project Archaeologist during the exploratory trenching for the Acequia Madre del Alamo. The GPR survey was conducted by Kristi Miller Nichols. Field crew consisted of Cyndi Dickey, Zaneta McCoy, and Chris Matthews. The acequia was not encountered while RKEI monitored the gas line or the storm drain utility installations. Fifteen backhoe trenches were excavated within the project area to relocate the route of the Acequia Madre del Alamo. The acequia was encountered in six of the 15 trenches. The acequia was documented and location recorded in the areas where it was encountered. Based on historic maps, the presence of the acequia in six trenches, and the location of the Acequia Madre del Alamo encountered by UTSA-CAR within Hemisfair Park and the St. Joseph’s Catholic Church Property, a probable alignment of the acequia was mapped. Due to the intact nature of sections of the acequia encountered during the backhoe trenching, the sections of 41BX8 uncovered during this portion of the project are potentially eligible for listing on the National Register of Historic Places, as well as a State Antiquities Landmark. At the completion of the grading at the Henry B. Gonzales Convention Center, RKEI recommended further evaluation and investigations to determine the exact route of the Acequia Madre del Alamo throughout the APE. Another phase to the investigation occurred at the start of the construction of Civic Park. Since all work was conducted under the same antiquities permit, this report is Volume 1 of two volumes, containing the results of the investigations leading up to the end of the Convention Center Expansion Project. A second volume of the report discusses the investigations associated with the Civic Park Project

An Intensive Cultural Resources Survey of 107 Acres Along Galm Road, San Antonio, Bexar County, Texas

In December 2016, the Northside Independent School District (Client) contracted with Raba Kistner Environmental, Inc. (RKEI) to perform a cultural resources pedestrian survey within a 107-acre tract near Galm Road in San Antonio, Bexar County, Texas. The purpose of this survey was to determine whether cultural resources were located within the Area of Potential Effects (APE), and if feasible, assess their significance and eligibility for designation as State Antiquities Landmarks (SALs) and for inclusion in the National Register of Historic Places (NRHP). The project was sponsored by the Client and the owner of the project is currently George Weimer (soon to be owned by the Client). Since the area of potential effects (APE) is owned by a political subdivision of the state, the project falls under the Antiquities Code of Texas, as administered by the Texas Historical Commission (THC). Additionally, the APE is 2.5 kilometers to the southeast of Government Canyon State Natural Area. The field work was carried out between January 10 and 13, 2017 under Texas Antiquities Committee Permit No. 7866, issued to Kristi M. Nichols, who served as Principal Investigator. Mark Luzmoor served as the Project Archaeologist and Chris Murray, Richard Sample, Chris Matthews, and Kendra Brownlow assisted during the field work. Background research revealed that no previously recorded archaeological sites are located within the boundary of the APE. However, there are five archaeological sites within a 1-kilometer radius of the APE. In total, 19 shovel tests (STs) were excavated within the APE. Surface visibility was around 80% throughout the APE. Approximately 75% of the APE was open-plowed fields, with the other 25% located in fairly thick underbrush. During the pedestrian survey, 25 isolated artifacts were encountered within the plowed fields of the APE. These included secondary and tertiary flakes, bifaces, and utilized flakes; only the tools were collected. A historic bottle dump also was encountered during the pedestrian survey on the eastern end of the APE. The bottles date to the middle of the twentieth century. Two shovel tests (ST 3 & 5) were positive for cultural material in the top 20 centimeters below surface (cmbs) (two pieces of debitage and one burned rock). 41BX2162 was designated as a multi-component archaeological site due to the large amount of surface finds, the two positive STs, and the historic bottle dump, all along the eastern end of the APE. However, no cultural deposits were encountered beneath 20 cmbs, the majority of the cultural material was recorded on the surface, and no diagnostic prehistoric material was encountered. Thus, RKEI finds that the site lacks research potential and recommends no further archaeological work within the project boundaries. All field records generated by this project will be curated in accordance with the Texas Archaeology Research Laboratory guidelines

The Fundamental Plane of Black Hole Accretion and its Use as a Black Hole-Mass Estimator

We present an analysis of the fundamental plane of black hole accretion, an empirical correlation of the mass of a black hole ($M$), its 5 GHz radio continuum luminosity ($\nu L_{\nu}$), and its 2-10 keV X-ray power-law continuum luminosity ($L_X$). We compile a sample of black holes with primary, direct black hole-mass measurements that also have sensitive, high-spatial-resolution radio and X-ray data. Taking into account a number of systematic sources of uncertainty and their correlations with the measurements, we use Markov chain Monte Carlo methods to fit a mass-predictor function of the form $\log(M/10^{8}\,M_{\scriptscriptstyle \odot}) = \mu_0 + \xi_{\mu R} \log(L_R / 10^{38}\,\mathrm{erg\,s^{-1}}) + \xi_{\mu X} \log(L_X / 10^{40}\,\mathrm{erg\,s^{-1}})$. Our best-fit results are $\mu_0 = 0.55 \pm 0.22$, $\xi_{\mu R} = 1.09 \pm 0.10$, and $\xi_{\mu X} = -0.59^{+0.16}_{-0.15}$ with the natural logarithm of the Gaussian intrinsic scatter in the log-mass direction $\ln\epsilon_\mu = -0.04^{+0.14}_{-0.13}$. This result is a significant improvement over our earlier mass scaling result because of the increase in active galactic nuclei sample size (from 18 to 30), improvement in our X-ray binary sample selection, better identification of Seyferts, and improvements in our analysis that takes into account systematic uncertainties and correlated uncertainties. Because of these significant improvements, we are able to consider potential influences on our sample by including all sources with compact radio and X-ray emission but ultimately conclude that the fundamental plane can empirically describe all such sources. We end with advice for how to use this as a tool for estimating black hole masses.Comment: ApJ Accepted. Online interactive version of Figure 7 available at http://kayhan.astro.lsa.umich.edu/supplementary_material/fp

Novel Applications of Carbon Isotopes in Atmospheric CO2: What Can Atmospheric Measurements Teach Us About Processes in the Biosphere?

Conventionally, measurements of carbon isotopes in atmospheric CO2 (δ13CO2) have been used to partition fluxes between terrestrial and ocean carbon pools. However, novel analytical approaches combined with an increase in the spatial extent and frequency of δ13CO2 measurements allow us to conduct a global analysis of δ13CO2 variability to infer the isotopic composition of source CO2 to the atmosphere (δs). This global analysis yields coherent seasonal patterns of isotopic enrichment. Our results indicate that seasonal values of δs are more highly correlated with vapor pressure deficit (r = 0.404) than relative humidity (r = 0.149). We then evaluate two widely used stomatal conductance models and determine that the Leuning Model, which is primarily driven by vapor pressure deficit is more effective globally at predicting δs (RMSE = 1.6‰) than the Ball-Woodrow-Berry model, which is driven by relative humidity (RMSE = 2.7‰). Thus stomatal conductance on a global scale may be more sensitive to changes in vapor pressure deficit than relative humidity. This approach highlights a new application of using δ13CO2 measurements to validate global models

The value of community-based monitoring in marine protected areas

There is an increasing realisation of the importance of community or volunteer collected data for management programs that are otherwise limited by the availability of funds or resources. However, there are concerns regarding the reliability of scientific data collected by inexperienced people. We investigated the potential for community-based monitoring in Victoria&rsquo;s newly established system of Marine Protected Areas. The main objectives for the study were to 1) develop a template for the scientific monitoring of marine habitats suitable for community groups, 2) assess data quality and data integrity collected by community volunteers and 3) determine a sustainable model for ongoing community participation in monitoring marine habitats. Three different habitats (subtidal, intertidal, and seagrass) were investigated and data collected by volunteers across these habitats was compared to that collected by scientists. Reliability of data collected by volunteers was dependent on habitat type and the type of measurement the volunteers were required to make. Qualitative estimates made by volunteers were highly variable across all three habitat sites, compared to quantitative data collection. Subtidal monitoring had the greatest inaccuracy for data collection, whereas intertidal reef monitoring was most reliable. Sustainability of community-based monitoring programs is dependent on adequate training for volunteers and the development of partnerships to foster greater community engagement.<br /

Fortification and health: challenges and opportunities.

Fortification is the process of adding nutrients or non-nutrient bioactive components to edible products (e.g., food, food constituents, or supplements). Fortification can be used to correct or prevent widespread nutrient intake shortfalls and associated deficiencies, to balance the total nutrient profile of a diet, to restore nutrients lost in processing, or to appeal to consumers looking to supplement their diet. Food fortification could be considered as a public health strategy to enhance nutrient intakes of a population. Over the past century, fortification has been effective at reducing the risk of nutrient deficiency diseases such as beriberi, goiter, pellagra, and rickets. However, the world today is very different from when fortification emerged in the 1920s. Although early fortification programs were designed to eliminate deficiency diseases, current fortification programs are based on low dietary intakes rather than a diagnosable condition. Moving forward, we must be diligent in our approach to achieving effective and responsible fortification practices and policies, including responsible marketing of fortified products. Fortification must be applied prudently, its effects monitored diligently, and the public informed effectively about its benefits through consumer education efforts. Clear lines of authority for establishing fortification guidelines should be developed and should take into account changing population demographics, changes in the food supply, and advances in technology. This article is a summary of a symposium presented at the ASN Scientific Sessions and Annual Meeting at Experimental Biology 2014 on current issues involving fortification focusing primarily on the United States and Canada and recommendations for the development of responsible fortification practices to ensure their safety and effectiveness

Dietary Methionine Restriction Regulates Liver Protein Synthesis and Gene Expression Independently of Eukaryotic Initiation Factor 2 Phosphorylation in Mice

Background: The phosphorylation of eukaryotic initiation factor 2 (p-eIF2) during dietary amino acid insufficiency reduces protein synthesis and alters gene expression via the integrated stress response (ISR).Objective: We explored whether a Met-restricted (MR) diet activates the ISR to reduce body fat and regulate protein balance.Methods: Male and female mice aged 3-6 mo with either whole-body deletion of general control nonderepressible 2 (Gcn2) or liver-specific deletion of protein kinase R-like endoplasmic reticulum kinase (Perk) alongside wild-type or floxed control mice were fed an obesogenic diet sufficient in Met (0.86%) or an MR (0.12% Met) diet for ≤5 wk. Ala enrichment with deuterium was measured to calculate protein synthesis rates. The guanine nucleotide exchange factor activity of eIF2B was measured alongside p-eIF2 and hepatic mRNA expression levels at 2 d and 5 wk. Metabolic phenotyping was conducted at 4 wk, and body composition was measured throughout. Results were evaluated with the use of ANOVA (P < 0.05).Results: Feeding an MR diet for 2 d did not increase hepatic p-eIF2 or reduce eIF2B activity in wild-type or Gcn2-/- mice, yet many genes transcriptionally regulated by the ISR were altered in both strains in the same direction and amplitude. Feeding an MR diet for 5 wk increased p-eIF2 and reduced eIF2B activity in wild-type but not Gcn2-/- mice, yet ISR-regulated genes altered in both strains similarly. Furthermore, the MR diet reduced mixed and cytosolic but not mitochondrial protein synthesis in both the liver and skeletal muscle regardless of Gcn2 status. Despite the similarities between strains, the MR diet did not increase energy expenditure or reduce body fat in Gcn2-/- mice. Finally, feeding the MR diet to mice with Perk deleted in the liver increased hepatic p-eIF2 and altered body composition similar to floxed controls.Conclusions: Hepatic activation of the ISR resulting from an MR diet does not require p-eIF2. Gcn2 status influences body fat loss but not protein balance when Met is restricted

Ecological processes dominate the \u3csup\u3e13\u3c/sup\u3eC land disequilibrium in a Rocky Mountain subalpine forest

Fossil fuel combustion has increased atmospheric CO2 by ≈ 115 µmol mol−1 since 1750 and decreased its carbon isotope composition (δ13C) by 1.7–2‰ (the 13C Suess effect). Because carbon is stored in the terrestrial biosphere for decades and longer, the δ13C of CO2released by terrestrial ecosystems is expected to differ from the δ13C of CO2 assimilated by land plants during photosynthesis. This isotopic difference between land-atmosphere respiration (δR) and photosynthetic assimilation (δA) fluxes gives rise to the 13C land disequilibrium (D). Contemporary understanding suggests that over annual and longer time scales, D is determined primarily by the Suess effect, and thus, D is generally positive (δR \u3e δA). A 7 year record of biosphere-atmosphere carbon exchange was used to evaluate the seasonality of δA and δR, and the 13C land disequilibrium, in a subalpine conifer forest. A novel isotopic mixing model was employed to determine the δ13C of net land-atmosphere exchange during day and night and combined with tower-based flux observations to assess δA and δR. The disequilibrium varied seasonally and when flux-weighted was opposite in sign than expected from the Suess effect (D = −0.75 ± 0.21‰ or −0.88 ± 0.10‰ depending on method). Seasonality in D appeared to be driven by photosynthetic discrimination (Δcanopy) responding to environmental factors. Possible explanations for negative D include (1) changes in Δcanopy over decades as CO2 and temperature have risen, and/or (2) post-photosynthetic fractionation processes leading to sequestration of isotopically enriched carbon in long-lived pools like wood and soil