Resource Type

La Alimentacion de Su Bebe Prematuro, Paso a Paso

Brief guide on feeding for premature babies. Guide is broken into age months with acceptable foods to try sorted according to eating and developmental milestones.
Date: May 2011
Creator: Texas. Department of State Health Services.
System: The Portal to Texas History

Alternations of Structure and Functional Activity of Below Ground Microbial Communities at Elevated Atmospheric Carbon Dioxide

The global atmospheric concentration of CO2 has increased by more than 30percent since the industrial revolution. Although the stimulating effects of elevated CO2 (eCO2) on plant growth and primary productivity have been well studied, its influences on belowground microbial communities are poorly understood and controversial. In this study, we showed a significant change in the structure and functional potential of soil microbial communities at eCO2 in a grassland ecosystem, the BioCON (Biodiversity, CO2 and Nitrogen) experimental site (http://www.biocon.umn.edu/) using a comprehensive functional gene array, GeoChip 3.0, which contains about 28,0000 probes and covers approximately 57,000 gene variants from 292 functional gene families involved in carbon, nitrogen, phosphorus and sulfur cycles as well as other functional processes. GeoChip data indicated that the functional structure of microbial communities was markedly different between ambient CO2 (aCO2) and eCO2 by detrended correspondence analysis (DCA) of all 5001 detected functional gene probes although no significant differences were detected in the overall microbial diversity. A further analysis of 1503 detected functional genes involved in C, N, P, and S cycles showed that a considerable portion (39percent) of them were only detected under either aCO2 (14percent) or eCO2 (25percent), indicating that the functional characteristics of the microbial …
Date: May 17, 2010
Creator: He, Zhili; Xu, Meiying; Deng, Ye; Kang, Sanghoon; Wu, Liyou; Van Nostrand, Joy D. et al.
System: The UNT Digital Library

Binary Phase Diagrams of Transition Elements

Chart issued by the U.S. National Bureau of Standards illustrating the systematic relationships between phase diagrams of transition elements. This chart includes color illustrations.
Date: May 1980
Creator: Waterstrat, Richard M.
System: The UNT Digital Library

Breast Milk every ounce counts

Poster of a woman wearing a lab coat with the text, "As a doctor i know breastfeeding is the healthiest thing you can do for your baby. As a mother i feel it is the most beautiful." printed at the top of the poster.
Date: May 2015
Creator: Texas. Bureau of WIC Nutrition.
System: The Portal to Texas History

Comparison of Predictive Models for PV Module Performance (Presentation)

This paper examines three models used to estimate the maximum power (P{sub m}) of PV modules when the irradiance and PV cell temperature are known: (1) the power temperature coefficient model, (2) the PVFORM model, and (3) the bilinear interpolation model. A variation of the power temperature coefficient model is also presented that improved model accuracy. For modeling values of P{sub m}, an 'effective' plane-of-array (POA) irradiance (E{sub e}) and the PV cell temperature (T) are used as model inputs. Using E{sub e} essentially removes the effects of variations in solar spectrum and reflectance losses, and permits the influence of irradiance and temperature on model performance for P{sub m} to be more easily studied. Eq. 1 is used to determine E{sub e} from T and the PV module's measured short-circuit current (I{sub sc}). Zero subscripts denote performance at Standard Reporting Conditions (SRC).
Date: May 1, 2008
Creator: Marion, B.
System: The UNT Digital Library

Crystal Silicon Heterojunction Solar Cells by Hot-wire CVD (Presentation)

None
Date: May 1, 2008
Creator: Wang, Q.; Page, M. R.; Iwaniczko, E.; Xu, Y. Q.; Roybal, L.; Bauer, R. et al.
System: The UNT Digital Library

Effect of Increasing Nitrogen Deposition on Soil Microbial Communities

Increasing nitrogen deposition, increasing atmospheric CO2, and decreasing biodiversity are three main environmental changes occurring on a global scale. The BioCON (Biodiversity, CO2, and Nitrogen) ecological experiment site at the University of Minnesota's Cedar Creek Ecosystem Science Reserve started in 1997, to better understand how these changes would affect soil systems. To understand how increasing nitrogen deposition affects the microbial community diversity, heterogeneity, and functional structure impact soil microbial communities, 12 samples were collected from the BioCON plots in which nitrogenous fertilizer was added to simulate the effect of increasing nitrogen deposition and 12 samples from without added fertilizer. DNA from the 24 samples was extracted using a freeze-grind protocol, amplified, labeled with a fluorescent dye, and then hybridized to GeoChip, a functional gene array containing probes for genes involved in N, S and C cycling, metal resistance and organic contaminant degradation. Detrended correspondence analysis (DCA) of all genes detected was performed to analyze microbial community patterns. The first two axes accounted for 23.5percent of the total variation. The samples fell into two major groups: fertilized and non-fertilized, suggesting that nitrogenous fertilizer had a significant impact on soil microbial community structure and diversity. The functional gene numbers detected in fertilized …
Date: May 17, 2010
Creator: Xiao, Shengmu; Xue, Kai; He, Zhili; VanNostrand, Joy D.; Liu, Jianshe; Hobbie, Sarah E. et al.
System: The UNT Digital Library

Effects of experimental warming and clipping on metabolic change of microbial community in a US Great Plains tallgrass prairie

While more and more studies are being conducted on the effects of global warming, little is known regarding the response of metabolic change of whole soil microbial communities to this phenomenon. In this study, functional gene changes at the mRNA level were analyzed by our new developed GeoChip 3.0. Soil samples were taken from a long-term climate warming experiment site, which has been conducted for ~;;8 years at the Kessler Farm Field Laboratory, a 137.6-ha farm located in the Central Redbed Plains, in McClain County, Oklahoma. The experiment uses a paired factorial design with warming as the primary factor nested with clipping as a secondary factor. An infrared heater was used to simulate global warming, and clipping was used to mimic mowing hay. Twelve 2m x 2m plots were divided into six pairs of warmed and control plots. The heater generates a constant output of ~;;100 Watts m-2 to approximately 2 oC increase in soil temperature above the ambient plots, which is at the low range of the projected climate warming by IPCC. Soil whole microbial communities? mRNA was extracted, amplified, labeled and hybridized with our GeoChip 3.0, a functional gene array covering genes involved in N, C, P, and …
Date: May 17, 2010
Creator: Xie, Jianping; Liu, Xinxing; Liu, Xueduan; Nostrand, Joy D. Van; Deng, Ye; Wu, Liyou et al.
System: The UNT Digital Library

Functional Ecological Gene Networks to Reveal the Changes Among Microbial Interactions Under Elevated Carbon Dioxide Conditions

Biodiversity and its responses to environmental changes is a central issue in ecology, and for society. Almost all microbial biodiversity researches focus on species richness and abundance but ignore the interactions among different microbial species/populations. However, determining the interactions and their relationships to environmental changes in microbial communities is a grand challenge, primarily due to the lack of information on the network structure among different microbial species/populations. Here, a novel random matrix theory (RMT)-based conceptual framework for identifying functional ecological gene networks (fEGNs) is developed with the high throughput functional gene array hybridization data from the grassland microbial communities in a long-term FACE (Free Air CO2 Enrichment) experiment. Both fEGNs under elevated CO2 (eCO2) and ambient CO2 (aCO2) possessed general characteristics of many complex systems such as scale-free, small-world, modular and hierarchical. However, the topological structure of the fEGNs is distinctly different between eCO2 and aCO2, suggesting that eCO2 dramatically altered the interactions among different microbial functional groups/populations. In addition, the changes in network structure were significantly correlated with soil carbon and nitrogen dynamics, and plant productivity, indicating the potential importance of network interactions in ecosystem functioning. Elucidating network interactions in microbial communities and their responses to environmental changes are …
Date: May 17, 2010
Creator: Deng, Ye; Zhou, Jizhong; Luo, Feng; He, Zhili; Tu, Qichao & Zhi, Xiaoyang
System: The UNT Digital Library

HuMiChip: Development of a Functional Gene Array for the Study of Human Microbiomes

Microbiomes play very important roles in terms of nutrition, health and disease by interacting with their hosts. Based on sequence data currently available in public domains, we have developed a functional gene array to monitor both organismal and functional gene profiles of normal microbiota in human and mouse hosts, and such an array is called human and mouse microbiota array, HMM-Chip. First, seed sequences were identified from KEGG databases, and used to construct a seed database (seedDB) containing 136 gene families in 19 metabolic pathways closely related to human and mouse microbiomes. Second, a mother database (motherDB) was constructed with 81 genomes of bacterial strains with 54 from gut and 27 from oral environments, and 16 metagenomes, and used for selection of genes and probe design. Gene prediction was performed by Glimmer3 for bacterial genomes, and by the Metagene program for metagenomes. In total, 228,240 and 801,599 genes were identified for bacterial genomes and metagenomes, respectively. Then the motherDB was searched against the seedDB using the HMMer program, and gene sequences in the motherDB that were highly homologous with seed sequences in the seedDB were used for probe design by the CommOligo software. Different degrees of specific probes, including gene-specific, …
Date: May 17, 2010
Creator: Tu, Q.; Deng, Ye; Lin, Lu; Hemme, Chris L.; He, Zhili & Zhou, Jizhong
System: The UNT Digital Library

Identification of Small RNAs in Desulfovibrio vulgaris Hildenborough

Desulfovibrio vulgaris is an anaerobic sulfate-reducing bacterium capable of facilitating the removal of toxic metals such as uranium from contaminated sites via reduction. As such, it is essential to understand the intricate regulatory cascades involved in how D. vulgaris and its relatives respond to stressors in such sites. One approach is the identification and analysis of small non-coding RNAs (sRNAs); molecules ranging in size from 20-200 nucleotides that predominantly affect gene regulation by binding to complementary mRNA in an anti-sense fashion and therefore provide an immediate regulatory response. To identify sRNAs in D. vulgaris, a bacterium that does not possess an annotated hfq gene, RNA was pooled from stationary and exponential phases, nitrate exposure, and biofilm conditions. The subsequent RNA was size fractionated, modified, and converted to cDNA for high throughput transcriptomic deep sequencing. A computational approach to identify sRNAs via the alignment of seven separate Desulfovibrio genomes was also performed. From the deep sequencing analysis, 2,296 reads between 20 and 250 nt were identified with expression above genome background. Analysis of those reads limited the number of candidates to ~;;87 intergenic, while ~;;140 appeared to be antisense to annotated open reading frames (ORFs). Further BLAST analysis of the intergenic …
Date: May 17, 2010
Creator: Burns, Andrew; Joachimiak, Marcin; Deutschbauer, Adam; Arkin, Adam & Bender, Kelly
System: The UNT Digital Library

Investigating the role of CheA-3 in Dusulfovibrio Vulgaris Hildenborough

Multiple sets of chemotaxis genes including three cheA homologs were identified in the genome sequence of the anaerobic bacterium Desulfovibrio vulgaris Hildenborough. Each CheA is a histidine kinase (HK) and part of a two component signal transduction system. Knock out mutants in the three cheA genes were created using single cross-over homologous recombination insertion. We studied the phenotypes of the cheA mutants in detail and discovered that ?cheA-3 has a non swarming/swimming phenotype both in the soft agar plates and Palleroni chamber assays. CheA-3 shows similarity to the Shewanella oneidensis CheA-3 and the Vibrio cholerae CheA-2 that are responsible for chemotaxis in the respective organisms. We did not find any morphological or structural differences between the three Delta cheA mutants and the wild type cells in electron microscopy. Our results from these studies are presented.
Date: May 22, 2010
Creator: Ray, Jayashee; Keller, Kimberley; Krierim, Bernhard; Auer, Manfred; Keasling, Jay; Wall, Judy et al.
System: The UNT Digital Library

Mapping the Two-component Regulatory Networks in Desulfovibrio vulgaris

D. vulgaris Hildenborough has 72 response regulators. The Desulfovibrio are sulfate reducing bacteria that are important in the sulfur and carbon cycles in anoxic habitats. Its large number of two componenent systems are probably critical to its ability to sense and respond to its environment. Our goal is to map these RRs to the genes they regulate using a DNA-affinity-purification-chip (DAP-chip) protocol. First target determined usuing EMSA. A positive target was determined for as many RRs as possible using EMSA. Targets were selected based on gene proximity, regulon predictions and/or predicted sigma54 dependent promoters. qPCR was used to ensure that the target was enriched from sheared genomic DNA before proceeding to the DAP-chip.
Date: May 17, 2010
Creator: Rajeev, Lara; Luning, Eric; Dehal, Paramvir; Joachimiak, Marcin & Mukhopadhyay, Aindrila
System: The UNT Digital Library

Microarray-based analysis of survival of soil microbial community during ozonation

A 15 h ozonation was performed on bioremediated soil to remove recalcitrant residual oil. To monitor the survival of indigenous microorganisms in the soil during in-situ chemical oxidation(ISCO) culturing and a functional genearray, GeoChip, was used to examine the functional genes and structure of the microbial community during ozonation (0h, 2h, 4h, 6h, 10hand15h). Breakthrough ozonation decreased the population of cultivable heterotrophic bacteria by about 3 orders of magnitude. The total functional gene abundance and diversity decreased during ozonation, as the number of functional genes was reduced by 48percent after 15 h. However, functional genes were evenly distributed during ozonation as judged by the Shannon-Weaver Evenness index. A sharp decrease in gene number was observed in the first 6 h of ozonation followed by a slower decrease in the next 9 h, which was consistent with microbial populations measured by a culture based method. Functional genes involved in carbon, nitrogen, phosphors and sulfur cycling, metal resistance and organic remediation were detected in all samples. Though the pattern of gene categories detected was similar for all time points, hierarchica lcluster of all functional genes and major functional categories all showed a time-serial pattern. Bacteria, archaea and fungi decreased by 96.1percent, 95.1percent …
Date: May 17, 2010
Creator: Wang, Jian; Van Nostrand, Joy D.; He, Zhili; Wu, Liyou; Deng, Ye; Zhang, Xu et al.
System: The UNT Digital Library

Newsmap. For the Armed Forces. 242nd week of the war, 124th week of U.S. participation

Front: Text describes action on various war fronts: Western Europe, USSR, Italy, Southwest Pacific, Central Pacific, Southeast Asia, China. Map: Southwest Pacific showing areas of action. Includes photographs: Various sizes of bombs; German self-propelled gun with an American tank and a Nazi armored personnel carrier in the background; Capsized liberty ship in Naples harbor; View of Sabang Harbour before being taken by Japanese; Allied planes carry out some of the heaviest bombing operations at Hollandia airfield. Back: Memorandum for the Armed Forces. Subject: Home front production. Includes photographs: Guns; Shells; Vehicles; Planes; Ships. Text includes 4 point memorandum and descriptions of photographs.
Date: May 1, 1944
Creator: [United States.] Army Service Forces. Army Information Branch.
System: The UNT Digital Library

Newsmap. For the Armed Forces. 243rd week of the war, 125th week of U.S. participation

Front: Text describes action on various war fronts: Air offensive, Italy, Central Pacific, Southwest Pacific, Southeast Asia, Eastern front. Maps: New Guinea; Pre-invasion air offensive. Includes 7 photographs. Back: Four approaches to Japan [from Alaska, from China-Burma, from Manchuria, from the S. W. Pacific]. Color illustrations showing the 4 approaches from perspective above the globe.
Date: May 8, 1944
Creator: [United States.] Army Service Forces. Army Information Branch.
System: The UNT Digital Library

Newsmap. For the Armed Forces. 244th week of the war, 126th week of U.S. participation

Front: Text describes action on various war fronts: Air war, Eastern front, China, Burma-India, Italy, Pacific. Maps: China-Burma; Sevastopol; Insets: Crimea. Includes 8 photographs. Back: Moscow to Berlin. Map.
Date: May 15, 1944
Creator: [United States.] Army Service Forces. Army Information Branch.
System: The UNT Digital Library

Newsmap. For the Armed Forces. 245th week of the war, 127th week of U.S. participation

Front: Text describes action on various war fronts: Italy, Pacific, Southeast Asia, China, Western Europe, USSR. Maps show Allied attacks from India and China into Burma; Current battle line in central Italy. Includes photographs: Nazi 170mm and American 200mm. mobile guns at Aberdeen Proving Ground, Md.; Shells belonging to the Nazi and American guns; German paratroopers during street fighting in Cassino; Self-propelled German gun mounted on a Mark III chassis advances toward Allied positions in Cassino; Road sign posted near the Allied beachhead below Rome warns Allied forces against touching "butterfly bombs". Back: Your battleship and her requirements. Illustration of a battleship with text describing man hours required to design and build, materials to build, material to operate.
Date: May 22, 1944
Creator: [United States.] Army Service Forces. Army Information Branch.
System: The UNT Digital Library

Newsmap. For the Armed Forces. 246th week of the war, 128th week of U.S. participation

Front: Text describes action on various war fronts: Italy, Pacific, USSR, China, Southeast Asia, Western Europe. Maps: Central Italy showing current offensive areas and the battle line as of 11 May, 1944; Extent of Allied ground force operations. Includes photographs: 20,000 ft. column of smoke rising from Ploesti, Romania; Supply column heads north through Castelforte, Italy; American soldier walks through piles of rubble in the aftermath of heavy shelling; Amphibious "ducks" outside Anzio, laden with supplies for Fifth Army troops; Tanks emerge from the Assam Hills in northern India; Army nurse Lt. Jane Easton of Atlantic City, NJ and nurse Doru Chu of China tend to Corp. George Sammy of Gary, Ind. in China, Lt. La Retta Matthews of Lakeland, FL and Lt. Carolyn Taylor, Douglaston, L.I., N.Y. converse with a fabric shop owner in a Chinese city. Back: New Guinea. Map (continuation of map issued in Newsmap v. 2, no. 37).
Date: May 29, 1944
Creator: [United States.] Army Service Forces. Army Information Branch.
System: The UNT Digital Library

Newsmap. For the Armed Forces. 295th week of the war, 177th week of U.S. participation

Front: Maps show military activities throughout Europe, China, and the Philippines during the week. Inset map: Pacific action Photograph: U.S. Sixty-Ninth Division Infantrymen greet Red Army soldiers on the Elbe River bridge at Torgau. Accompanied by timeline showing dates, key cities, and mileage for both armies to meet. Back: [oblique col. map]: Japan from Siberia.
Date: May 7, 1945
Creator: [United States.] Army Service Forces. Army Information Branch.
System: The UNT Digital Library

Newsmap. For the Armed Forces. 296th week of the war, 178th week of U.S. participation

Front: Victory in Europe--map overlays photograph of military prisoners ; map of Japan and Japanese-held areas includes text pointer giving current and projected troop strength of Japanese military forces. Back: [text and ill.]: This is why we fight-- [Concentration camp victims]./ Photo on back: Pfc. James L. Watkins, Oakland, Cal., 106th Inf. Div is examined by Army personnel after rescue.
Date: May 14, 1945
Creator: [United States.] Army Service Forces. Army Information Branch.
System: The UNT Digital Library

Newsmap. For the Armed Forces. 297th week of the war, 179th week of U.S. participation

Front: Text keyed to map of Asia describes military action in Japan, Okinawa, China, The Philippines, and Borneo. Inset: View of the world from the north pole. Back: Two Down . . . One to go! Illustration of two soldiers in hand-to-hand combat is accompanied by text regarding the war with Japan.
Date: May 21, 1945
Creator: [United States.] Army Service Forces. Army Information Branch.
System: The UNT Digital Library

Newsmap. For the Armed Forces. V-E Day + 3 weeks, 180th week of U.S. participation in the war

Front: Text describes fighting on Okinawa. Maps: Okinawa; Nagoya ablaze; [Japan-East China Sea]. Back: Text and 10 photographs show reconnaissance aircraft and activities.
Date: May 28, 1945
Creator: [United States.] Army Service Forces. Army Information Branch.
System: The UNT Digital Library