Digital Commons Network^™

Morphology And Biomass Production Of Prairie Cordgrasson Marginal Lands, A. Boe, V Owens, J. Gonzalez-Hernandez, J. Stein, D. K. Lee, B. C. Koo

Agronomy, Horticulture and Plant Science Faculty Publications

Prairie cordgrass (Spartina pectinata Link.) is indigenous throughout most of the continental United States and Canada to 60°N latitude and is well suited to marginal land too wet for maize (Zea mays L.) and switchgrass (Panicum virgatum L.). Evaluations of prairie cordgrass in Europe and North America indicated it has high potential for biomass production, relative to switchgrass, in short‐season areas. Our objective was to describe morphology and biomass production and partitioning in mature stands of ‘Red River’ prairie cordgrass and determine biomass production of natural populations on marginal land. This study was conducted from 2000 to …

Adomian Decomposition Method For Solving The Equation Governing The Unsteady Flow Of A Polytropic Gas, M. A. Mohamed

Applications and Applied Mathematics: An International Journal (AAM)

In this article, we have discussed a new application of Adomian decomposition method on nonlinear physical equations. The models of interest in physics are considered and solved by means of Adomian decomposition method. The behavior of Adomian solutions and the effects of different values of time are investigated. Numerical illustrations that include nonlinear physical models are investigated to show the pertinent features of the technique.

Effect Of Dust Particles On Rotating Micropolar Fluid Heated From Below Saturating A Porous Medium, R. Reena, U. S. Rana

Applications and Applied Mathematics: An International Journal (AAM)

This paper deals with the theoretical investigation of the effect of dust particles on a layer of rotating micropolar fluid heated from below saturating a porous medium. A dispersion relation is obtained for a flat fluid layer contained between two free boundaries using a linear stability analysis theory and normal mode analysis. The principle of exchange of stabilities is found to hold true for the micropolar fluid saturating a porous medium heated from below in the absence of dust particles, rotation and micropolar heat conduction parameter. The oscillatory modes are introduced due to the presence of the dust particles and …

On The Mechanisms Of Episodic Salinity Outflow Events In The Strait Of Hormuz, Prasad G. Thoppil, Patrick J. Hogan

Faculty Publications

Observations in the Strait of Hormuz (26.26 degrees N, 56.08 degrees E) during 1997-98 showed substantial velocity fluctuations, accompanied by episodic changes in the salinity outflow events with amplitude varying between 1 and 2 psu on time scales of several days to a few weeks. These events are characterized by a rapid increase in salinity followed by an abrupt decline. The mechanisms behind these strong pulses of salinity events are investigated with a whigh-resolution (similar to 1 km) Hybrid Coordinate Ocean Model (HYCOM) with particular reference to the year 2005. In accordance with the observations, the simulated salinity events are …

Guided Inquiry Lab Exercises In Development And Oxygen Consumption Using Zebrafish, Brian Bagatto

Biology Faculty Research

Zebrafish have become a model organism in many areas of research and are now being used with more frequency in the classroom to teach important biological concepts. The two guided inquiry exercises in this article are each aimed at a different level of instruction, but each can be modified to fit the needs of many high school or college-level courses. The "Zebrafish Development and Environment'' exercise teaches high school students about zebrafish development by presenting a series of embryos at different ages. Without access to visual references, students are asked to rank developing zebrafish by age and explain their choices. …

Computer Science Research Funding: How Much Is Too Little?, Elihu Zimet, Stuart Starr, Clifford Lau, Anup Ghosh

Defense and Technology Papers

This papers summarizes and analyzes the findings of a study of the historical and planned level of Department of Defense (DOD) funding in computer science (CS) research from the 2001–2011 DOD records, and formulates key findings and recommendations.

If Rumors Were Horses, Katina Strauch

Against the Grain

No abstract provided.

Population Size And Rates Of Language Change, Søren Wichmann, Eric W. Holman

Human Biology

Previous empirical studies of population size and language change have produced equivocal results. We therefore address the question with a new set of lexical data from nearly one-half of the world’s languages. We first show that relative population sizes of modern languages can be extrapolated to ancestral languages, albeit with diminishing accuracy, up to several thousand years into the past. We then test for an effect of population against the null hypothesis that the ultrametric inequality is satisfied by lexical distance among triples of related languages. The test shows mainly negligible effects of population, the exception being an apparently faster …

Outbreak Of Dengue Fever In Karachi 2006: A Clinical Perspective, Muhammad Mehmood Riaz, Khalid Mumtaz, Muhammad Shoaib Khan, Junaid Patel, M. Tariq, Harith Hilal, Shaheryar Ahmed Siddiqui, Farrukh Shezad

Section of Internal Medicine

OBJECTIVE: This study reports clinical manifestations and spectrum of severity of dengue fever (DF), dengue haemorrhagic fever (DHF) and dengue shock syndrome (DSS) in adult patients admitted during 2006 outbreak in Karachi. A rough estimation of cost of care was also calculated.

METHODS: A cross-sectional study was done at a tertiary care hospital in Karachi from January to December 2006. Patients suspected of having DF with positive dengue IgM antibodies were included and records were reviewed. Patients were divided into DF, DHF and DSS as per WHO classification, and the severity of clinical manifestations was determined.

RESULTS: A total of …

Therapeutic Targeting Of Atp7b In Ovarian Carcinoma, Lingegowda S Mangala, Vesna Zuzel, Rosemarie Schmandt, Erik S Leshane, Jyotsna B Halder, Guillermo N Armaiz-Pena, Whitney A Spannuth, Takemi Tanaka, Mian M K Shahzad, Yvonne G Lin, Alpa M Nick, Christopher G Danes, Jeong-Won Lee, Nicholas B Jennings, Pablo E Vivas-Mejia, Judith K Wolf, Robert L Coleman, Zahid H Siddik, Gabriel Lopez-Berestein, Svetlana Lutsenko, Anil K Sood

Faculty, Staff and Student Publications

PURPOSE: Resistance to platinum chemotherapy remains a significant problem in ovarian carcinoma. Here, we examined the biological mechanisms and therapeutic potential of targeting a critical platinum resistance gene, ATP7B, using both in vitro and in vivo models.

EXPERIMENTAL DESIGN: Expression of ATP7A and ATP7B was examined in ovarian cancer cell lines by real-time reverse transcription-PCR and Western blot analysis. ATP7A and ATP7B gene silencing was achieved with targeted small interfering RNA (siRNA) and its effects on cell viability and DNA adduct formation were examined. For in vivo therapy experiments, siRNA was incorporated into the neutral nanoliposome 1,2-dioleoyl-sn-glycero-3-phosphatidylcholine (DOPC).

RESULTS: ATP7A …

Political Theory, Political Science, And The End Of Civic Engagement, Ben Berger

Political Science Faculty Works

Within a span of fifteen years civic engagement has become a cottage industry in political science and political theory, but the term has now outlived its usefulness and exemplifies Giovanni Sartori's worry about conceptual "stretching." This article traces civic engagement's ascension as a catch-all term for almost anything that citizens might happen to do together or alone, and illustrates the confusion that its popularity has occasioned. It proposes that civic engagement meet a well-deserved end, to be replaced with a more nuanced and descriptive set of engagements: political, social, and moral. It also examines the appeal of engagement itself, a …

Full Page Ads, Editor

Against the Grain

No abstract provided.

Portrayal Of Physicists In Fictional Works, Daniel Dotson

CLCWeb: Comparative Literature and Culture

In his article "Portrayal of Physicists in Fictional Works" Daniel Dotson analyzes how physicists (including professors, teachers, physics students, and amateur physicists) are portrayed in novels, films, and television programs. Eighty characters are analyzed to see if they possessed any of ten personality traits: obsessive, having major mental health problems, withdrawn, brave, timid, socially inept, arrogant, too career-focused, out of touch, and stubborn. Dotson lists a summary of the characters with their traits followed by an overview of the traits and select examples of how characters possessed that trait. Male and female characters are compared to determine if one gender …

Disruption Of Osysl15 Leads To Iron Inefficiency In Rice Plants, Sichul Lee, Jeff C. Chiecko, Sun A. Kim, Elsbeth L. Walker, Youngsook Lee, Mary Lou Guerinot, Gyhheung An

Dartmouth Scholarship

Uptake and translocation of metal nutrients are essential processes for plant growth. Graminaceous species release phytosiderophores that bind to Fe³⁺; these complexes are then transported across the plasma membrane. We have characterized OsYSL15, one of the rice (Oryza sativa) YS1-like (YSL) genes that are strongly induced by iron (Fe) deficiency. The OsYSL15 promoter fusion to β-glucuronidase showed that it was expressed in all root tissues when Fe was limited. In low-Fe leaves, the promoter became active in all tissues except epidermal cells. This activity was also detected in flowers and seeds. The OsYSL15:green …

Physical Effects Of The Respiratory Syncytial Virus On Human Cells., Adam Pfendt 1985-

Electronic Theses and Dissertations

Respiratory syncytial virus is the leading cause of lower respiratory tract infection in infants and currently lacks an effective vaccine or treatment beyond symptom relief. The atomic force microscope is particularly well suited for imaging biological samples including DNA, proteins, cells, and viral activity. Analyzing fixed HEp-2 cells with the AFM after infection and incubation with RSV for periods up to 24 hrs reveals several physical changes that may lead to a better understanding of the viral effects on living cells. Comparing cells fixed with methanol or glutaraldehyde and osmium tetroxide suggests substantial volume losses in the cells regardless of …

Interactive Open Access Peer Review: The Atmospheric Chemistry And Physics Model, Ulrich Poschl

Against the Grain

No abstract provided.

Lost In Austin -- "Why I Don't Blog", Thomas W. Leonhardt

Against the Grain

No abstract provided.

Peer Review: The History, The Issues, And New Directions, Irving Rockwood

Against the Grain

No abstract provided.

Bibliometric Analysis Of The Output Of German Technological Universities By Means Of The J Factor, Bernhard Mittermaier

Proceedings of the IATUL Conferences

No abstract provided.

Obama, Africa, And The Post-Racial, Michael Janis

CLCWeb: Comparative Literature and Culture

In his article "Obama, Africa, and the Post-Racial" Michael Janis examines aspects of U.S. president Barack Obama's election in the context of the epistemology and history of racism. Following an introduction to the history of racism in Europe and in the U.S., Janis discusses the media in the U.S. and in Africa in relation to African American and African politics. The debates on race ignited by the campaign are considered in the light of Africana perspectives on relations between Africa and the West and on the history of slavery and colonialism. Based on selected data in the media of the …

The Meaning Of Myth In Ulysses And The Magic Mountain, Susan V. Scaff

CLCWeb: Comparative Literature and Culture

In her article "The Meaning of Myth in Ulysses and The Magic Mountain" Susan V. Scaff discusses the proposition that Joyce and Mann combine in their novels myth and history and contradicts Joseph Frank's influential early view that modernist writers avoid history in favor of myth and the more recent verdict of Hayden White that this evasion amounts to an abrogation of civic responsibility mirroring fascism. Mann and Joyce recoil from the horrors of history while exploring the recovery of myth as amelioration. They realize that myths may lose their life bearing quality, and they portray a disoriented Europe lacking …

Andrews Student Awarded Goldwater Scholarship, Keri Suarez

Lake Union Herald

No abstract provided.

Revisiting Histidine-Dependent Acid Phosphatases: A Distinct Group Of Tyrosine Phosphatases., Suresh Veeramani, Ming-Shyue Lee, Ming-Fong Lin

Journal Articles: Biochemistry & Molecular Biology

Although classical protein tyrosine phosphatase (PTP) superfamily members are cysteine-dependent, emerging evidence shows that many acid phosphatases (AcPs) function as histidine-dependent PTPs in vivo. These AcPs dephosphorylate phospho-tyrosine substrates intracellularly and could have roles in development and disease. In contrast to cysteine-dependent PTPs, they utilize histidine, rather than cysteine, for substrate dephosphorylation. Structural analyses reveal that active site histidine, but not cysteine, faces towards the substrate and functions as the phosphate acceptor. Nonetheless, during dephosphorylation, both histidine-dependent and cysteine-dependent PTPs use their active site arginine and aspartate for substrate binding and proton donation, respectively. Thus, we propose that they should …

Gender Differences In Depression And Immune Response In Colorectal Cancer, Barbara Anne Rose Phd, Msn, Rn

Dissertations

The focus of this descriptive comparative study was to examine the relationship between gender and depression and immune system function in patients with colorectal cancer. The research questions were answered through secondary analysis, using data obtained from the answers of 117 men and women (71 men and 46 women) enrolled in a colorectal cancer study conducted between 1990 and 1991 in Pennsylvania. Descriptive statistics were used to characterize the sample, and general estimating equations were used to analyze depression and immune system function between men and women. Depression was measured by the Beck Depression Inventory, and immune system function was …

Psychologism And American Instructional Technology, David Wiley, Bekir Gur

Faculty Publications

Note: This is not the final draft of the article. The centrality of psychology in the field of instructional technology has never been comprehensively questioned; most instructional technologists have assumed that (behaviorist, cognitivist, constructivist, or another) psychology is the natural foundation for education and thus for instructional technology. The driving question of this article is: What are the problems of psychologism as found in the theories and practices of instructional technology? We present a brief genealogy of American instructional technology in relation to the influence of psychology; review critical psychology and discuss some problems of psychologism focusing on positivism, metaphysics, …

The Prognostic Power Of Normative Influences Among Ncaa Student-Athletes, Justin F. Hummer, Joseph W. Labrie, Andrew Lac

Heads Up!

This study evaluated the predictive power of perceived descriptive and injunctive norms on intercollegiate student-athlete alcohol consumption and attitudes toward drinking-related behaviors. The sample consisted of 594 NCAA student-athletes from two geographically opposite sites. Norms variables utilized a school and gender-specific athletic peer reference group. Results indicate that respondents reported greater perceived injunctive norms than actual attitudes, and greater perceived descriptive norms than actual alcohol use. Further, after accounting for demographics and alcohol motivations, perceived injunctive norms were the strongest predictors of athletes' attitudes with the final model explaining 54% of the variance. Similarly, perceived descriptive norms were among the …

Inhibition Of Aβ42 Aggregation Using Peptides Selected From Combinatorial Libraries, Michael Baine, Daniel S. Georgie, Elelta Z. Shiferraw, Theresa P. T. Nguyen, Luiza A. Nogaj, David A. Moffet

Chemistry and Biochemistry Faculty Works

Increasing evidence suggests that the aggregation of the small peptide Aβ42 plays an important role in the development of Alzheimer’s disease. Inhibiting the initial aggregation of Aβ42 may be an effective treatment for preventing, or slowing, the onset of the disease. Using an in vivo screen based on the enzyme EGFP, we have searched through two combinatorially diverse peptide libraries to identify peptides capable of inhibiting Aβ42 aggregation. From this initial screen, three candidate peptides were selected and characterized. ThT studies indicated that the selected peptides were capable of inhibiting amyloid aggregation. Additional ThT studies showed that one of the …

Determining The Effectiveness Of The Clean Air Act And Amendments On The Recovery Of Surface Waters In The Northeastern Us, Steve Kahl, William H. Mcdowell, Sarah J. Nelson, Katherine Webster

NH Water Resources Research Center Scholarship

No abstract provided.

New Hampshire Wrrc Information Transfer 2008, New Hampshire Water Resources Research Center (Nh Wrrc)

NH Water Resources Research Center Scholarship

No abstract provided.

Intravenous Inoculation Of A Bat-Associated Rabies Virus Causes Lethal Encephalopathy In Mice Through Invasion Of The Brain Via Neurosecretory Hypothalamic Fibers., Mirjam A R Preuss, Marie-Luise Faber, Gene S Tan, Michael Bette, Bernhard Dietzschold, Eberhard Weihe, Matthias J Schnell

Department of Microbiology and Immunology Faculty Papers

The majority of rabies virus (RV) infections are caused by bites or scratches from rabid carnivores or bats. Usually, RV utilizes the retrograde transport within the neuronal network to spread from the infection site to the central nervous system (CNS) where it replicates in neuronal somata and infects other neurons via trans-synaptic spread. We speculate that in addition to the neuronal transport of the virus, hematogenous spread from the site of infection directly to the brain after accidental spill over into the vascular system might represent an alternative way for RV to invade the CNS. So far, it is unknown …