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2008

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Transverse Momentum And Centrality Dependence Of Dihadron Correlations In Au+Au Collisions At Snn=200 Gev: Jet Quenching And The Response Of Partonic Matter, Andrew Marshall Adare, Gyöngyi Baksay, László Baksay, Klaus Dehmelt, Marcus Hohlmann, S. Rembeczki, Phenix Collaboration Jan 2008

Transverse Momentum And Centrality Dependence Of Dihadron Correlations In Au+Au Collisions At Snn=200 Gev: Jet Quenching And The Response Of Partonic Matter, Andrew Marshall Adare, Gyöngyi Baksay, László Baksay, Klaus Dehmelt, Marcus Hohlmann, S. Rembeczki, Phenix Collaboration

Aerospace, Physics, and Space Science Faculty Publications

Azimuthal angle (Δ) correlations are presented for charged hadrons from dijets for 0.4


Dihadron Azimuthal Correlations In Au+Au Collisions At √Snn=200 Gev, Andrew Marshall Adare, Gyöngyi Baksay, László A. Baksay, Klaus Dehmelt, Marcus Hohlmann, S. Rembeczki, Phenix Collaboration Jan 2008

Dihadron Azimuthal Correlations In Au+Au Collisions At √Snn=200 Gev, Andrew Marshall Adare, Gyöngyi Baksay, László A. Baksay, Klaus Dehmelt, Marcus Hohlmann, S. Rembeczki, Phenix Collaboration

Aerospace, Physics, and Space Science Faculty Publications

Azimuthal angle (Δϕ) correlations are presented for a broad range of transverse momentum (0.4


Charged Hadron Multiplicity Fluctuations In Au+Au And Cu+Cu Collisions From √Snn=22.5 To 200 Gev, Andrew Marshall Adare, Gyöngyi Baksay, László A. Baksay, Klaus Dehmelt, Marcus Hohlmann, S. Rembeczki, Phenix Collaboration Jan 2008

Charged Hadron Multiplicity Fluctuations In Au+Au And Cu+Cu Collisions From √Snn=22.5 To 200 Gev, Andrew Marshall Adare, Gyöngyi Baksay, László A. Baksay, Klaus Dehmelt, Marcus Hohlmann, S. Rembeczki, Phenix Collaboration

Aerospace, Physics, and Space Science Faculty Publications

A comprehensive survey of event-by-event fluctuations of charged hadron multiplicity in relativistic heavy ions is presented. The survey covers Au+Au collisions at √sNN=62.4 and 200 GeV, and Cu+Cu collisions at √sNN=22.5,62.4, and 200 GeV. Fluctuations are measured as a function of collision centrality, transverse momentum range, and charge sign. After correcting for nondynamical fluctuations due to fluctuations in the collision geometry within a centrality bin, the remaining dynamical fluctuations expressed as the variance normalized by the mean tend to decrease with increasing centrality. The dynamical fluctuations are consistent with or below the expectation from a superposition of participant nucleon-nucleon collisions …


Source Mechanisms Of Terrestrial Gamma-Ray Flashes, Joseph R. Dwyer Jan 2008

Source Mechanisms Of Terrestrial Gamma-Ray Flashes, Joseph R. Dwyer

Aerospace, Physics, and Space Science Faculty Publications

The source of terrestrial gamma-ray flashes (TGFs) has remained a mystery since their discovery in 1994. Recent Reuven Ramaty High-Energy Solar Spectroscopic Imager (RHESSI) observations show that these intense bursts of MeV gamma rays likely originate much deeper in the atmosphere than previously inferred from Burst and Transient Source Experiment (BATSE) data, with the source altitude <21 km. Using existing measurements of the intensity and duration of BATSE and RHESSI TGFs, along with limits on the electric field set by the relativistic feedback mechanism involving backward propagating positrons and x-rays, it is found that TGFs cannot be produced by relativistic runaway electron avalanches acting on natural background radiation or extensive cosmic-ray air showers alone, as has been assumed by many previous models. Instead, the energetic seed particle production most likely involves either relativistic feedback or runaway electron production in the strong electric fields associated with lightning lead or streamers, similar to the energetic radiation observed on the ground from lightning.


Co-Location Of Lightning Leader X-Ray And Electric Field Change Sources, John J. Howard, Martin A. Uman, Joseph R. Dwyer, Dustin Hill, Christopher J. Biagi, Ziad H. Saleh, Jason E. Jerauld, Hamid K. Rassoul Jan 2008

Co-Location Of Lightning Leader X-Ray And Electric Field Change Sources, John J. Howard, Martin A. Uman, Joseph R. Dwyer, Dustin Hill, Christopher J. Biagi, Ziad H. Saleh, Jason E. Jerauld, Hamid K. Rassoul

Aerospace, Physics, and Space Science Faculty Publications

Using an eight-station time of arrival (TOA) network composed of NaI(Tl) scintillation detectors and wideband electric field derivative (dE/dt) antennas covering approximately 1 km² on the ground, we have located both the sources of X-ray emissions and electric field changes produced during the leader phase of both downward negative natural and rocket-triggered lightning strokes. We show that the sources of X rays and leader step electric field changes are co-located in space within 50 m and that the located X rays are emitted 0.1 to 1.3 μs after the origin of the leader step electric field changes.


Time Evolution Of Terrestrial Gamma Ray Flashes, Brian W. Grefenstette, David M. Smith, Joseph R. Dwyer, Gerald Jerry Fishman Jan 2008

Time Evolution Of Terrestrial Gamma Ray Flashes, Brian W. Grefenstette, David M. Smith, Joseph R. Dwyer, Gerald Jerry Fishman

Aerospace, Physics, and Space Science Faculty Publications

We present a study of the time evolution of TGFs observed by both RHESSI and BATSE and compare the data with Monte Carlo simulations of relativistic runaway electron avalanches that record the time of flight for individual photons. Our analysis of the RHESSI data shows that the average delay between the main, hard peak and the secondary, soft tail in the RHESSI data is 28 ± 3 μs. We show that this is consistent with Compton downscattering of hard photons in the atmosphere in our simulations when the source region is located at or below 21 km, which is consistent …


High-Energy Electron Beams Launched Into Space By Thunderstorms, Joseph R. Dwyer, Brian W. Grefenstette, David M. Smith Jan 2008

High-Energy Electron Beams Launched Into Space By Thunderstorms, Joseph R. Dwyer, Brian W. Grefenstette, David M. Smith

Aerospace, Physics, and Space Science Faculty Publications

Using CGRO/BATSE data, a possible new source of high-energy electrons and positrons in the earth's inner magnetosphere is presented. These particles are generated within the upper atmosphere by Compton scattering and pair-production of gamma-rays originating from near the tropopause as Terrestrial Gamma-ray Flashes (TGFs). Once created, these energetic electrons and positrons follow the geomagnetic field into the inner magnetosphere where they can be detected in low-earth orbit, either near the TGF magnetic foot point or at the conjugate point several thousand kilometers away. Approximately 17% of CGRO/BATSE events previously identified as terrestrial gamma-ray flashes are, in fact, such electrons and …


Hubble Space Telescope Near-Infrared Snapshot Survey Of 3cr Radio Source Counterparts. Ii. An Atlas And Inventory Of The Host Galaxies, Mergers, And Companions, David J. E. Floyd, Eric Perlman Jan 2008

Hubble Space Telescope Near-Infrared Snapshot Survey Of 3cr Radio Source Counterparts. Ii. An Atlas And Inventory Of The Host Galaxies, Mergers, And Companions, David J. E. Floyd, Eric Perlman

Aerospace, Physics, and Space Science Faculty Publications

We present the second part of an H-band (1.6 μm) "atlas" of z < 0.3 3CR radio galaxies, using the Hubble Space Telescope Near Infrared Camera and Multi-Object Spectrometer (HST NICMOS2). We present new imaging for 21 recently acquired sources and host galaxy modeling for the full sample of 101 (including 11 archival) - an 87% completion rate. Two different modeling techniques are applied, following those adopted by the galaxy morphology and the quasar host galaxy communities. Results are compared and found to be in excellent agreement, although the former breaks down in the case of sources with strong active galactic nuclei (AGNs). Companion sources are tabulated, and the presence of mergers, tidal features, dust disks, and jets are cataloged. The tables form a catalog for those interested in the structural and morphological dust-free host galaxy properties of the 3CR sample, and for comparison with morphological studies of quiescent galaxies and quasar host galaxies. Host galaxy masses are estimated and found to typically lie at around 2 × 1011 M⊙. In general, the population is found to be consistent with the local population of quiescent elliptical galaxies, but with a longer tail to low Sérsic index, mainly consisting of low-redshift (z < 0.1) and low-radio-power (FR I) sources. A few unusually disky FR II host galaxies are picked out for further discussion. Nearby external sources are identified in the majority of our images, many of which we argue are likely to be companion galaxies or merger remnants. The reduced NICMOS data are now publicly available from our Web site.


The Extreme Outburst Of Ex Lup In 2008: Optical Spectra And Light Curve, Ágnes Kóspál, P. Németh, Péter Ábrahám, Mária Kun, Arne A. Henden, Albert F. Jones Jan 2008

The Extreme Outburst Of Ex Lup In 2008: Optical Spectra And Light Curve, Ágnes Kóspál, P. Németh, Péter Ábrahám, Mária Kun, Arne A. Henden, Albert F. Jones

Aerospace, Physics, and Space Science Faculty Publications

EX Lup is the prototype of EXors, a class of pre-main sequence eruptive variables, exhibiting unpredictable brightenings lasting some months (Herbig, 1977; Herbig et al., 2001; Herbig, 2007). According to the current picture, eruptions of pre-main sequence stars are caused by enhanced accretion (Hartmann & Kenyon, 1996). In quiescent phase, EX Lup has typically V 13 mag, while in outburst, it may brighten by 1{4 mag. The last known are-up happened in 2002 (Herbig, 2007). As was announced by Jones (2008), EX Lup has been in outburst again since at least 2008 January 15. Based on visual estimates, the star …


The Warps Survey. Vii. The Warps-Ii Cluster Catalog, Donald J. Horner, Eric S. Perlman, Harald Ebeling, Laurence R. Jones, Caleb A. Scharf, Gary Wegner, Matthew Malkan, Ben Maughan Jan 2008

The Warps Survey. Vii. The Warps-Ii Cluster Catalog, Donald J. Horner, Eric S. Perlman, Harald Ebeling, Laurence R. Jones, Caleb A. Scharf, Gary Wegner, Matthew Malkan, Ben Maughan

Aerospace, Physics, and Space Science Faculty Publications

We present the galaxy cluster catalog from the second, larger phase of the Wide Angle ROSAT Pointed Survey (WARPS), an X-ray selected survey for high-redshift galaxy clusters. WARPS is among the largest deep X-ray cluster surveys and is being used to study the properties and evolution of galaxy clusters. The WARPS-II sample contains 125 clusters serendipitously detected in a survey of 301 ROSAT PSPC pointed observations and covers a sky area of 56.7 deg2. Of these 125 clusters, 53 have not been previously reported in the literature. We have nearly complete spectroscopic follow-up of the clusters, which range in redshift …


Neuroimaging Research Into Disorders Of Consciousness: Moral Imperative Or Ethical And Legal Failure, Stacey A. Tovino Jan 2008

Neuroimaging Research Into Disorders Of Consciousness: Moral Imperative Or Ethical And Legal Failure, Stacey A. Tovino

Faculty Articles

In this article I explore the ethical and legal implications of enrolling individuals with disorders of consciousness (DOC) in neuroimaging research studies. Many scientists have strongly emphasized the need for additional neuroimaging research into DOC, characterizing the conduct of such studies as morally imperative. On the other hand, institutional review boards (IRBs) charged with approving research protocols, scientific journals deciding whether to publish study results, and federal agencies that disburse grant money have limited the conduct, publication, and funding of consciousness investigations based on ethical and legal concerns. Following a detailed examination of the risks and benefits of neuroimaging research …


Going Beyond Cookbook Labs : Computer-Based Laboratory Tools In The High School Physics Classroom, Jennifer A. Strohbehn Jan 2008

Going Beyond Cookbook Labs : Computer-Based Laboratory Tools In The High School Physics Classroom, Jennifer A. Strohbehn

Graduate Research Papers

Physics education is currently undergoing a face lift. The lecture should no longer be the primary mode of instruction because students are not actively participating. For effective learning to occur, the students need to be engaged, not passive listeners (Knight, 2005). Student-centered classrooms are becoming more common, but there is still work to be done. For a student-centered classroom to be effective, the students must construct their own understanding with the teacher acting as a 'guide. Physics instructors are responsible .for .making the classroom a user friendly environment for students to explore the basic concepts of physics and to develop …


Litter Mass Loss Rates In Deciduous And Coniferous Trees In Artvin, Northeast Turkey: Relationships With Litter Quality, Microclimate, And Soil Characteristics, Temel Sariyildiz, Mehmet Küçük Jan 2008

Litter Mass Loss Rates In Deciduous And Coniferous Trees In Artvin, Northeast Turkey: Relationships With Litter Quality, Microclimate, And Soil Characteristics, Temel Sariyildiz, Mehmet Küçük

Turkish Journal of Agriculture and Forestry

Plant litter decomposition is controlled by both biotic and abiotic factors. It has been widely hypothesized that litter quality and climatic and soil conditions regulate decomposition. The present study examined the decomposition of native forest tree litter on 2 aspects (the north and the south) and at 3 altitudes (top, middle, and bottom) on each aspect in Artvin province to determine the influence of litter quality, microclimate, and soil characteristics on the rate of decomposition. A litter-bag experiment was performed using beech, oak, fir, and pine litter. The litter bags were placed on the north- and south-facing sites and at …


Mechanisms Of Hemoglobin Adaptation To High Altitude Hypoxia, Jay F. Storz, Hideaki Moriyama Jan 2008

Mechanisms Of Hemoglobin Adaptation To High Altitude Hypoxia, Jay F. Storz, Hideaki Moriyama

Hideaki Moriyama Publications

Evidence from a number of vertebrate taxa suggests that modifications of hemoglobin (Hb) function may often play a key role in mediating an adaptive response to high altitude hypoxia. The respiratory functions of Hb are a product of the protein’s intrinsic O2-binding affinity and its interactions with allosteric effectors such as protons, chloride ions, CO2, and organic phosphates. Here we review several case studies involving high altitude vertebrates where it has been possible to identify specific mechanisms of Hb adaptation to hypoxia. In addition to comparative studies of Hbs from diverse animal species, functional studies of …


Mechanisms Of Hemoglobin Adaptation To High Altitude Hypoxia, Jay F. Storz, Hideaki Moriyama Jan 2008

Mechanisms Of Hemoglobin Adaptation To High Altitude Hypoxia, Jay F. Storz, Hideaki Moriyama

Hideaki Moriyama Publications

Evidence from a number of vertebrate taxa suggests that modifications of hemoglobin (Hb) function may often play a key role in mediating an adaptive response to high altitude hypoxia. The respiratory functions of Hb are a product of the protein’s intrinsic O2-binding affinity and its interactions with allosteric effectors such as protons, chloride ions, CO2, and organic phosphates. Here we review several case studies involving high altitude vertebrates where it has been possible to identify specific mechanisms of Hb adaptation to hypoxia. In addition to comparative studies of Hbs from diverse animal species, functional studies of …


Fumonisin Level In Corn-Based Food And Feed From Linxian County, A High-Risk Area For Esophageal Cancer In China, Jiansheng Wang, Ying Zhou, Wanbo Liu, Xiangcheng Zhu, Liangcheng Du, Qiaomei Wang Jan 2008

Fumonisin Level In Corn-Based Food And Feed From Linxian County, A High-Risk Area For Esophageal Cancer In China, Jiansheng Wang, Ying Zhou, Wanbo Liu, Xiangcheng Zhu, Liangcheng Du, Qiaomei Wang

Liangcheng Du Publications

The level of mycotoxin fumonisins in corn-based food and feed collected from Linxian County, a high-risk area for esophageal cancer in China, has been analyzed using high-performance liquid chromatographic coupled with evaporative laser scattering detector (HPLC-ELSD). A total of 104 corn kernel samples were obtained from local households, granaries, wholesale markets (central markets), and retail markets (stores and supermarkets). Fumonisin B1 (FB1) was detected in the samples from households, granaries, central markets, and stores, with a positive rate of 61.5%, 50%, 33.3%, and 17%, respectively. No fumonisin was detected in samples from the supermarket. The highest FB1 levels (0.30–3.20 μg/ …


Preface To Proceedings Of The Fourth San Luis Symposium On Surfaces, Interfaces And Catalysis, Jose Rodriguez, Marjorie Langell Jan 2008

Preface To Proceedings Of The Fourth San Luis Symposium On Surfaces, Interfaces And Catalysis, Jose Rodriguez, Marjorie Langell

Marjorie A. Langell Publications

The following Special Issue of The Journal of Molecular Catalysis A: Chemical consists of the Proceedings of The Fourth San Luis Symposium on Surfaces, Interfaces and Catalysis, a Pan-American Advanced Studies Institute, which took place in Cuernavaca, Mexico, on April 14–23, 2007. This was the fourth in a series of symposia designed to strengthen the links between Latin American and US and European scientists in the areas of surface science and catalysis. The concept was born at a conference in August of 1994 organized to celebrate the 400th anniversary of the founding of the city of San Luis in Argentina. …


The Application Of Fast-Nmr For The Identification Of Novel Drug Discovery Targets, Robert Powers, Kelly A. Mercier, Jennifer C. Copeland Jan 2008

The Application Of Fast-Nmr For The Identification Of Novel Drug Discovery Targets, Robert Powers, Kelly A. Mercier, Jennifer C. Copeland

Robert Powers Publications

The continued success of genome sequencing projects has resulted in a wealth of information, but 40-50% of identified genes correspond to hypothetical proteins or proteins of unknown function. The Functional Annotation Screening Technology by NMR (FAST-NMR) screen was developed to assign a biological function for these unannotated proteins with a structure solved by the Protein Structure Initiative. FAST-NMR is based on the premise that a biological function can be described by a similarity in binding sites and ligand interactions with proteins of known function. The resulting co-structure and functional assignment may provide a starting point for …


Teenage Life In The Fat Lane, Kristi Shreffler Jan 2008

Teenage Life In The Fat Lane, Kristi Shreffler

Graduate Research Papers

Young adult fiction may not portray obese characters accurately. Research questions used to explore this issue focused on how obese characters were portrayed in young adult fiction. One set of questions asked whether characters in the books in this study will suffer from ridicule and peer rejection. A second set of questions asked whether any the books in this study will suggest that losing weight will ensure personal happiness. A third set of questions asked whether any of young adult fiction books in this study will portray obesity in a negative manner. After compiling the information, the researcher found that …


Strategies For Fresh-Cow Management, Nicholas R. Bork Jan 2008

Strategies For Fresh-Cow Management, Nicholas R. Bork

AS Series – Animal Science

No abstract provided.


Low-Stress Cattle Working Facilities, Vernon L. Anderson, Breanne Ilse Jan 2008

Low-Stress Cattle Working Facilities, Vernon L. Anderson, Breanne Ilse

AS Series – Animal Science

No abstract provided.


Meso-Scale Weather And Climate Observations In Kentucky For Societal Benefit, Rezaul Mahmood Jan 2008

Meso-Scale Weather And Climate Observations In Kentucky For Societal Benefit, Rezaul Mahmood

School of Natural Resources: Faculty Publications

No abstract provided.


A Coupled Mm5-Noah And Surface Model-Based Assessment Of Sensitivity Of Planetary Boundary Layer Variables To Anomalous Soil Moisture Conditions, Rezaul Mahmood Jan 2008

A Coupled Mm5-Noah And Surface Model-Based Assessment Of Sensitivity Of Planetary Boundary Layer Variables To Anomalous Soil Moisture Conditions, Rezaul Mahmood

School of Natural Resources: Faculty Publications

No abstract provided.


Equilibrium Sampling Used To Monitor Malodors In A Swine Waste Lagoon, Rezaul Mahmood Jan 2008

Equilibrium Sampling Used To Monitor Malodors In A Swine Waste Lagoon, Rezaul Mahmood

School of Natural Resources: Faculty Publications

No abstract provided.


A Dgge-Cloning Method To Characterize Arbuscular Mycorrhizal Community Structure In Soil, Zhanbei Liang, Rhae A. Drijber, Donald J. Lee, Ismail M. Dwiekat, Steven D. Harris, David A. Wedin Jan 2008

A Dgge-Cloning Method To Characterize Arbuscular Mycorrhizal Community Structure In Soil, Zhanbei Liang, Rhae A. Drijber, Donald J. Lee, Ismail M. Dwiekat, Steven D. Harris, David A. Wedin

Department of Plant Pathology: Faculty Publications

Although arbuscular mycorrhizal fungi (AMF) are crucial for ecosystem functioning, characterizing AMF community structure in soil is challenging. In this study, nested polymerase chain reaction (PCR) and denaturing gradient gel electrophoresis (DGGE) were combined with cloning of fungal 18S ribosomal gene fragments for the rapid comparison of AMF community structure in soil. Reference AMF isolates, representing four major genera of AMF, were used to develop the method. Sequential amplification of 18S rDNA fragments by nested PCR using primer pairs AM1-NS31 and Glo1-NS31GC followed by DGGE analysis yielded a high-resolution band profile. In parallel, 18S rDNA fragment clone libraries were constructed …


One Share, One Vote And The False Promise Of Shareholder Homogeneity, Grant M. Hayden, Matthew T. Bodie Jan 2008

One Share, One Vote And The False Promise Of Shareholder Homogeneity, Grant M. Hayden, Matthew T. Bodie

Faculty Journal Articles and Book Chapters

Shareholder democracy has blossomed. The once moribund shareholder franchise is now critical in takeover contests, merger decisions, and board oversight. However, the mechanisms of this vote remain largely undertheorized. In this Article, we use voting rights and social choice theory to develop a new approach to the corporate franchise. Political democracies typically tie the right to vote to the level of a person's interest in the outcome of the election. Corporate democracies, on the other hand, tend to define the requisite institutional interest quite narrowly, and thus restrict the right to vote to shareholders alone. This restriction has found its …


Chapter 6: Nebraska Experience, S. R. Walker, J. C. Lund, D. G. Schumacher, P. A. Brakhage, B. C. Mcmanus, J. D. Miller, M. M. Augustine, J. J. Carney, R. S. Holland, Kyle D. Hoagland, John C. Holz, Todd M. Barrow, Donald C. Rundquist, Anatoly A. Gitelson Jan 2008

Chapter 6: Nebraska Experience, S. R. Walker, J. C. Lund, D. G. Schumacher, P. A. Brakhage, B. C. Mcmanus, J. D. Miller, M. M. Augustine, J. J. Carney, R. S. Holland, Kyle D. Hoagland, John C. Holz, Todd M. Barrow, Donald C. Rundquist, Anatoly A. Gitelson

Department of Agronomy and Horticulture: Faculty Publications

Nebraska agencies and public health organizations collaboratively addressed cyanobacterial issues for the first time after two dogs died within hours of drinking water from a small private lake south of Omaha on May 4, 2004. A necropsy on one of the dogs revealed that the cause of death was due to ingestion of Microcystin toxins. Within two weeks after the dog deaths, state and local officials jointly developed strategies for monitoring cyanobacterial blooms and issuing public health alerts and advisories. Weekly sampling of public lakes for microcystin toxins and cyanobacteria was initiated during the week of May 17, 2004. ELISA …


Modeling Responses Of Dryland Spring Triticale, Proso Millet And Foxtail Millet To Initial Soil Water In The High Plains, S. A. Saseendran, D. C. Nielsen, Drew J. Lyon, L. Ma, D. D. Baltensperger, G. Hoogenboom, L.R. Ahuja Jan 2008

Modeling Responses Of Dryland Spring Triticale, Proso Millet And Foxtail Millet To Initial Soil Water In The High Plains, S. A. Saseendran, D. C. Nielsen, Drew J. Lyon, L. Ma, D. D. Baltensperger, G. Hoogenboom, L.R. Ahuja

Department of Agronomy and Horticulture: Faculty Publications

Dryland farming strategies in the High Plains must make efficient use of limited and variable precipitation and stored water in the soil profile for stable and sustainable farm productivity. Current research efforts focus on replacing summer fallow in the region with more profitable and environmentally sustainable spring and summer crops. In the absence of reliable precipitation forecasts for the crop growing season, farmers rely mainly upon knowledge of plant available water (PAW) in the soil profile at planting for making crop choice decisions. To develop a decision support strategy for crop selection based on initial PAW, experiments were conducted with …


Agricultural Systems: Agroecology And Rural Innovations For Development [Book Review], Charles A. Francis Jan 2008

Agricultural Systems: Agroecology And Rural Innovations For Development [Book Review], Charles A. Francis

Department of Agronomy and Horticulture: Faculty Publications

To welcome yet another book on sustainable development, a reviewer must look for what is unique and what adds value to the volumes already published. In Agricultural Systems, editors Sieglinde Snapp and Barry Pound have assembled a collection of chapters that goes beyond the usual praise and criticism of the green revolution and the focus on economic development. Their book provides a first-hand story by people with lengthy experiences in the field, especially in Africa, who have developed and tested grassroots, participatory development approaches. The result is a valuable set of principles, strategies and case studies that paint a new …


Hydrogen Energy: A Study Of The Use Of Anaerobic Digester Gas To Generate Electricity Utilizing Stand-Alone Hydrogen Fuel Cells At Wastewater Treatment Plants, Charles W. Emerson Jan 2008

Hydrogen Energy: A Study Of The Use Of Anaerobic Digester Gas To Generate Electricity Utilizing Stand-Alone Hydrogen Fuel Cells At Wastewater Treatment Plants, Charles W. Emerson

Theses

Not provided.