Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

2007

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 4051 - 4080 of 14125

Full-Text Articles in Entire DC Network

Cooperative Uav Formation Flying With Obstacle/Collision Avoidance, Xiaohua Wang, Vivek Yadav, S. N. Balakrishnan Jul 2007

Cooperative Uav Formation Flying With Obstacle/Collision Avoidance, Xiaohua Wang, Vivek Yadav, S. N. Balakrishnan

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Navigation problems of unmanned air vehicles (UAVs) flying in a formation in a free and an obstacle-laden environment are investigated in this brief. when static obstacles popup during the flight, the UAVs are required to steer around them and also avoid collisions between each other. In order to achieve these goals, a new dual-mode control strategy is proposed: a “safe mode” is defined as an operation in an obstacle-free environment and a “danger mode” is activated when there is a chance of collision or when there are obstacles in the path. Safe mode achieves global optimization because the dynamics of …

Go to article

Taxonomy Of The Species Of Amphigerontia (Psocoptera : Psocidae) Of The Rocky Mountains Of The United States And Canada, Edward L. Mockford, Johannes E. Anonby Jul 2007

Taxonomy Of The Species Of Amphigerontia (Psocoptera : Psocidae) Of The Rocky Mountains Of The United States And Canada, Edward L. Mockford, Johannes E. Anonby

Faculty Publications – Biological Sciences

Five species of psocids of the genus Amphigerontia Kolbe 1880, are recorded from the Rocky Mountains of the United States and Canada. Amphigerontia longicauda, n. sp., is described. Amphigerontia petiolata (Banks) is recorded from the Rocky Mountains for the first time. The holotype of Amphigerontia infernicola (Chapman) is re-examined and described in detail. New characters for the separation of females of Amphigerontia bijasciata (Latreille) and Amphigerontia montivaga (Chapman) resulted in many new records of the latter species, previously known in the Rocky Mountains from only a single locality. Species-level characters are reviewed and several new ones are added. A key …

Go to article

Improvement And Evaluation Of Greenlip Abalone Hatchery And Nursery Production. Final Frdc Report - Project 2003/203, Sabine Daume Jul 2007

Improvement And Evaluation Of Greenlip Abalone Hatchery And Nursery Production. Final Frdc Report - Project 2003/203, Sabine Daume

Fisheries Research Contract Reports

A range of experiments aimed at optimizing broodstock performance and nursery culture of greenlip abalone (Haliotis laevigata) were undertaken in Western Australia. Factors investigated that can potentially influence broodstock performance were natal source (wild-caught or farm-grown) and broodstock diets (red algal diet or formulated diet varying in levels of an important fatty acid). Wild-caught broodstock, feeding mainly on a red seaweed diet, produced eggs with higher concentrations of an important fatty acid, arachidonic acid, whereas farm-grown broodstock, feeding on a commercial formulated diet, altered the concentration of fatty acids of the eggs. Feeding farm-grown broodstock natural diets like …

Go to article

Philosophy And Theology: Notes On Condom Use By Hiv Infected Spouses And Embryo Ethics, Christopher Kaczor Jul 2007

Philosophy And Theology: Notes On Condom Use By Hiv Infected Spouses And Embryo Ethics, Christopher Kaczor

Philosophy Faculty Works

No abstract provided.

Go to article

The Impact Of Host Rock Geochemistry On Bacterial Community Structure In Oligotrophic Cave Environments, Hazel A. Barton, Nicholas M. Taylor, Michael P. Kreate Jul 2007

The Impact Of Host Rock Geochemistry On Bacterial Community Structure In Oligotrophic Cave Environments, Hazel A. Barton, Nicholas M. Taylor, Michael P. Kreate

KIP Articles

Despite extremely starved conditions, caves contain surprisingly diverse microbial communities. Our research is geared toward understanding what ecosystems drivers are responsible for this high diversity. To asses the effect of rock fabric and mineralogy, we carried out a comparative geomicrobiology study within Carlsbad Cavern, New Mexico, USA. Samples were collected from two different geologic locations within the cave: WF1 in the Massive Member of the Capitan Formation and sF88 in the calcareous siltstones of the Yates Formation. We examined the organic content at each location using liquid chromatography mass spectroscopy and analyzed microbial community structure using molecular phylogenetic analyses. In …

Go to article

Illinois State Magazine, Summer 2007, University Marketing And Communications Jul 2007

Illinois State Magazine, Summer 2007, University Marketing And Communications

Illinois State Magazine (1999-present)

Alumni magazine for Illinois State University

Go to article

Chloroviruses Encode A Bifunctional Dcmp-Dctp Deaminase That Produces Two Key Intermediates In Dttp Formation, Yuanzheng Zhang, Frank Maley, Gladys F. Maley, Garry Duncan, David Dunigan, James L. Van Etten Jul 2007

Chloroviruses Encode A Bifunctional Dcmp-Dctp Deaminase That Produces Two Key Intermediates In Dttp Formation, Yuanzheng Zhang, Frank Maley, Gladys F. Maley, Garry Duncan, David Dunigan, James L. Van Etten

Nebraska Center for Virology: Faculty Publications

The chlorovirus PBCV-1, like many large double-stranded DNA-containing viruses, contains several genes that encode putative proteins involved in nucleotide biosynthesis. This report describes the characterization of the PBCV-1 dCMP deaminase, which produces dUMP, a key intermediate in the synthesis of dTTP. As predicted, the recombinant protein has dCMP deaminase activity that is activated by dCTP and inhibited by dTTP. Unexpectedly, however, the viral enzyme also has dCTP deaminase activity, producing dUTP. Typically, these two reactions are catalyzed by proteins in separate enzyme classes; to our knowledge, this is the first example of a protein having both deaminase activities. Kinetic experiments …

Go to article

Water Erosion Prediction Project (Wepp): Development History, Model Capabilities, And Future Enhancements, Dennis C. Flanagan, John E. Gilley, Thomas G. Franti Jul 2007

Water Erosion Prediction Project (Wepp): Development History, Model Capabilities, And Future Enhancements, Dennis C. Flanagan, John E. Gilley, Thomas G. Franti

Department of Agricultural and Biological Systems Engineering: Faculty Publications

The Water Erosion Prediction Project (WEPP) was initiated in August 1985 to develop new‐generation water erosion prediction technology for use by federal action agencies involved in soil and water conservation and environmental planning and assessment. Developed by the USDA‐ARS as a replacement for empirically based erosion prediction technologies, the WEPP model simulates many of the physical processes important in soil erosion, including infiltration, runoff, raindrop and flow detachment, sediment transport, deposition, plant growth, and residue decomposition. The WEPP project included an extensive field experimental program conducted on cropland, rangeland, and disturbed forest sites to obtain data required to parameterize and …

Go to article

Nmr Assignments Of 1H, 13C And 15N Spectra Of Methionine Sulfoxide Reductase B1 From Mus Musculus, Lena S. Sal, Finn L. Aachmann, Hwa-Young Kim, Vadim N. Gladyshev, Alexander Dikiy Jul 2007

Nmr Assignments Of 1H, 13C And 15N Spectra Of Methionine Sulfoxide Reductase B1 From Mus Musculus, Lena S. Sal, Finn L. Aachmann, Hwa-Young Kim, Vadim N. Gladyshev, Alexander Dikiy

Vadim Gladyshev Publications

Isotopically labeled, 15N and 15N/13C forms of recombinant methionine-R-sulfoxide reductase 1 (MsrB1, SelR) from Mus musculus were produced, in which catalytic selenocysteine was replaced with cysteine. We report here the 1H, 15N and 13C NMR assignment of the reduced form of this mammalian protein.

Go to article

Common Genome-Wide Patterns Of Transcript Accumulation Underlying The Wing Polyphenism And Polymorphism In The Pea Aphid (Acyrthosiphon Pisum), Jennifer A. Brisson, Gergory K. Davis, David L. Stern Jul 2007

Common Genome-Wide Patterns Of Transcript Accumulation Underlying The Wing Polyphenism And Polymorphism In The Pea Aphid (Acyrthosiphon Pisum), Jennifer A. Brisson, Gergory K. Davis, David L. Stern

School of Biological Sciences: Faculty Publications

The pea aphid, Acyrthosiphon pisum, exhibits several environmentally cued polyphenisms, in which discrete, alternative phenotypes are produced. At low-density, parthenogenetic females produce unwinged female progeny, but at high-density females produce progeny that develop with wings. These alternative phenotypes represent a solution to the competing demands of dispersal and reproduction. Males also develop as either winged or unwinged, but these alternatives are determined by a genetic polymorphism. Winged and unwinged males are morphologically less distinct from each other than winged and unwinged females, possibly because males experience fewer trade-offs between dispersal and reproduction. To assess whether shared physiological differences mirror …

Go to article

Hepatitis C. An Update, Michael C. Safioleas, Christina P. Manti Jul 2007

Hepatitis C. An Update, Michael C. Safioleas, Christina P. Manti

Saudi Medical Journal

Hepatitis C is a long-term viral infection affecting the liver caused by the hepatitis C virus HCV. Hepatitis C can be silent for years before symptoms appear, and liver damage occurs. The hepatitis C virus is extremely infectious, which means that only a tiny amount of HCV can cause illness. Hepatitis C is a major public health problem worldwide with far-reaching implications because of the chronicity of the infection that leads to chronic liver disease, cirrhosis, and primary hepatocellular carcinoma.

Go to article

Recent Advances In The Imaging Of Hepatocellular Carcinoma. From Ultrasound To Positron Emission Tomography Scan, Valeria Camaggi, Fabio Piscaglia, Luigi Bolondi Jul 2007

Recent Advances In The Imaging Of Hepatocellular Carcinoma. From Ultrasound To Positron Emission Tomography Scan, Valeria Camaggi, Fabio Piscaglia, Luigi Bolondi

Saudi Medical Journal

Recent advances in imaging techniques for hepatocellular carcinoma (HCC) offer the possibility of investigating contrast perfusion of liver nodules in cirrhosis. It is now accepted that a non-invasive diagnosis of HCC can be established based on the vascular pattern obtained with pure blood pool contrast agents. The diagnostic pattern consists of contrast enhancement in the arterial phase, indicative of arterial hypervascularization, followed by contrast wash out in the portal and late phases, which leads the nodule to show the same, or, more specifically, a lower contrast signal than the surrounding parenchyma. Such patterns can be obtained by CT, MRI and, …

Go to article

Free Testosterone, Luteinizing Hormone/Follicle Stimulating Hormone Ratio And Pelvic Sonography In Relation To Skin Manifestations In Patients With Polycystic Ovary Syndrome, Khalifa E. Sharquie, Ansam A. Al-Bayatti, Asmaa I. Al-Ajeel, Awatif J. Al-Bahar, Adil A. Al-Nuaimy Jul 2007

Free Testosterone, Luteinizing Hormone/Follicle Stimulating Hormone Ratio And Pelvic Sonography In Relation To Skin Manifestations In Patients With Polycystic Ovary Syndrome, Khalifa E. Sharquie, Ansam A. Al-Bayatti, Asmaa I. Al-Ajeel, Awatif J. Al-Bahar, Adil A. Al-Nuaimy

Saudi Medical Journal

OBJECTIVE: To evaluate hormonal changes and pelvic sonography in polycystic ovary syndrome (PCOS) patients, especially free testosterone and their correlations with skin manifestations of this disease. METHODS: This prospective study was carried out in the Skin Clinic, Baghdad Teaching Hospital, Iraq in the period between April 2004-March 2005. We included 126 patients with PCOS in this study. Patients were divided into 3 groups according to the body mass index (BMI). Group I: normal weight (48 patients). Group II: overweight (n=29). Group III: obese (n=49). We included 75 healthy women as a control and divided into 3 groups according to their …

Go to article

The Potential Mechanism Of Chemosensitive Difference Between 2 Types Of Ovarian Cancer, Xiang He, Bo Lin, Lei Kong, Jiawen Zhang Jul 2007

The Potential Mechanism Of Chemosensitive Difference Between 2 Types Of Ovarian Cancer, Xiang He, Bo Lin, Lei Kong, Jiawen Zhang

Saudi Medical Journal

OBJECTIVE: To study the potential molecular mechanism of chemosensitive difference between human malignant epithelial and germ cell tumor of the ovary by testing the expression of p53 (mutation), Bcl-2, topoisomerase II alpha (Topo II alpha). METHODS: Immunohistochemical analysis was performed on paraffin embedded tumor tissue microarray from malignant epithelial (n=53) and germ cell tumor of the ovary (n=25) in the Department of Gynecology and Obstetrics, Second West China Hospital of Sichuan University, China from the year 2000 to 2004. The expression of p53, Bcl-2 and Topo II alpha in the 2 types of ovarian cancer was compared and data were …

Go to article

Factors Influencing Engraftment In Autologous Peripheral Stem Cell Transplantation. The Experience Of A Local Kuwaiti Transplantation Center, Salem H. Alshemmari, Reem M. Ameen, Jan Gyrafas, Dana A. Alqallaf, Kamlesh P. Sajnani Jul 2007

Factors Influencing Engraftment In Autologous Peripheral Stem Cell Transplantation. The Experience Of A Local Kuwaiti Transplantation Center, Salem H. Alshemmari, Reem M. Ameen, Jan Gyrafas, Dana A. Alqallaf, Kamlesh P. Sajnani

Saudi Medical Journal

OBJECTIVE: To assess factors affecting engraftment among patients with lymphoproliferative disorders treated with high dose-chemotherapy and autologous peripheral blood stem cell transplantation. METHODS: Fifty-four patients with lymphoproliferative disorders were treated from March 2000 to April 2006, at the Hamid Al-Essa Multiorgan Transplant Center, Kuwait. There were 37 males and 17 females, with a median age of 43 years (range 12-60). The cohort included 13 Hodgkin9s lymphoma, 31 non-Hodgkin9s lymphoma, and 10 multiple myeloma cases. RESULTS: The median number of infused CD34+ cells was 1.7 x 106 per kg (0.38-15). The medians for absolute neutrophil count (ANC) and platelet (PLT) engraftment …

Go to article

A Close Link Between Fas, P53 And Apaf-1 In Chronic Myeloid Leukemia, Faris Q. Alenzi, Richard K. Wyse, Waleed G. Tamimi, Mohammad S. Bamaga, Mahmoud Lotfy Jul 2007

A Close Link Between Fas, P53 And Apaf-1 In Chronic Myeloid Leukemia, Faris Q. Alenzi, Richard K. Wyse, Waleed G. Tamimi, Mohammad S. Bamaga, Mahmoud Lotfy

Saudi Medical Journal

In chronic myeloid leukemia CML proliferation is increased and resistance to apoptosis has been proposed as a mechanism accounting for myeloid cell expansion. There is still controversy on whether apoptosis plays an important role in the regulation of myelopoiesis. This study aims to investigate whether apoptosis-related proteins play a role in the evolution of CML and to identify, the relationship between Fas, p53 and apoptosis protease activating factor Apaf-1 in CML. We found increased p53 and Apaf-1 messenger ribonucleic acid mRNA in patients with CML. However, one patient, who had a p53 point mutation, showed a massive elevation of p53 …

Go to article

Bilateral Leukocoria In A Patient With Homozygous Protein C Deficiency, Nasrat M. Khan, Noura D. Al-Dohayan Jul 2007

Bilateral Leukocoria In A Patient With Homozygous Protein C Deficiency, Nasrat M. Khan, Noura D. Al-Dohayan

Saudi Medical Journal

We describe a bilateral leukocoria and neonatal purpura fulminans in a male infant, born at full term after an unremarkable pregnancy to a healthy consanguineous married couple. Multiple hemorrhagic skin bullae were found at birth on various parts of the body with bilateral leukocoria, organized vitreous hemorrhage, retinal detachment, and intracranial hemorrhage with undetectable levels of protein C activity. We report a clinical case of homozygous protein-C deficiency with severe purpura fulminans and bilateral leukocoria.

Go to article

A New Species Of Dipetalonema (Filarioidea: Onchocercidae) From Ateles Chamek From The Beni Of Bolivia, Juliana Notarnicola, F. Agustin Jimenez-Ruiz, Scott Lyell Gardner Jul 2007

A New Species Of Dipetalonema (Filarioidea: Onchocercidae) From Ateles Chamek From The Beni Of Bolivia, Juliana Notarnicola, F. Agustin Jimenez-Ruiz, Scott Lyell Gardner

Harold W. Manter Laboratory of Parasitology: Faculty Publications

We describe a new species of Dipetalonema occurring in the body cavity of Ateles chamek (Humboldt, 1812) from north-central Bolivia. Morphologic characters serving to separate Dipetalonema yatesi n. sp. from known forms include a vagina vera with a simple tube and thin walls and a left spicule, which possesses a handle shorter than the lamina (ratio 2.7); the latter displays an anterior membranous alae similar in length to the terminal flagellum, a distal extremity of the left spicule within a simple hook and a membrane, phasmids at the basis of the lappets, and heterogeneous muscles occupying the whole cavity. Dipetalonema …

Go to article

Neighborhood Context And Ethnicity Differences In Body Mass Index: A Multilevel Analysis Using The Nhanes Iii (1988-1994), D. Phuong Do, Tamara Dubowitz, Chloe E. Bird, Nicole Lurie, José J. Escarce, Brian K. Finch Jul 2007

Neighborhood Context And Ethnicity Differences In Body Mass Index: A Multilevel Analysis Using The Nhanes Iii (1988-1994), D. Phuong Do, Tamara Dubowitz, Chloe E. Bird, Nicole Lurie, José J. Escarce, Brian K. Finch

Faculty Publications

A growing body of literature has documented a link between neighborhood context and health outcomes. However, little is known about the relationship between neighborhood context and body mass index (BMI) or whether the association between neighborhood context and BMI differs by ethnicity. This paper investigates several neighborhood characteristics as potential explanatory factors for the variation of BMI across the United States; further, this paper explores to what extent segregation and the concentration of disadvantage across neighborhoods help explain ethnic disparities in BMI. Using data geo-coded at the census tract-level and linked with individual-level data from the Third National Health and …

Go to article

Ursinus Magazine, Summer 2007, Wendy Greenberg, Richard T. Schellhase, Joseph F. Pirro, Ellen Cosgrove, Bruce Clark, John Henry Augustus Bomberger Jul 2007

Ursinus Magazine, Summer 2007, Wendy Greenberg, Richard T. Schellhase, Joseph F. Pirro, Ellen Cosgrove, Bruce Clark, John Henry Augustus Bomberger

Ursinus Magazine, 1995–Present

Philip and Muriel Berman Museum of Art calendar • Alumni forum: A serendipitous surprise; Ursinus pranks • NSC alumni volunteers enhance Class of 2011 • Senior Vice President retires • Two faculty to retire: Curtis Allen, Ted Xaras • The Meistersingers abroad! • Ursinus students win prestigious fellowships • Field hockey comes home! • Commencement 2007 • Civic engagement: Not quite a major, but a major commitment • Rising stars • Students echo alumni civic engagement • The healing artist: Jay Bosniak 1962 • Profile: Jill Sherman 1978 • Another successful Alumni Academy and reunions 2007 • Class notes • …

Go to article

Index, Saint Mary's College Of California Jul 2007

Index, Saint Mary's College Of California

Undergraduate Academic Catalog

No abstract provided.

Go to article

Contents, Saint Mary's College Of California Jul 2007

Contents, Saint Mary's College Of California

Undergraduate Academic Catalog

No abstract provided.

Go to article

Biochemistry, Saint Mary's College Of California Jul 2007

Biochemistry, Saint Mary's College Of California

Undergraduate Academic Catalog

No abstract provided.

Go to article

Chemistry, Saint Mary's College Of California Jul 2007

Chemistry, Saint Mary's College Of California

Undergraduate Academic Catalog

No abstract provided.

Go to article

Biology, Saint Mary's College Of California Jul 2007

Biology, Saint Mary's College Of California

Undergraduate Academic Catalog

No abstract provided.

Go to article

Education, Saint Mary's College Of California Jul 2007

Education, Saint Mary's College Of California

Undergraduate Academic Catalog

No abstract provided.

Go to article

English And Drama; And Master Of Fine Arts Program In Creative Writing, Saint Mary's College Of California Jul 2007

English And Drama; And Master Of Fine Arts Program In Creative Writing, Saint Mary's College Of California

Undergraduate Academic Catalog

No abstract provided.

Go to article

Health Science, Saint Mary's College Of California Jul 2007

Health Science, Saint Mary's College Of California

Undergraduate Academic Catalog

No abstract provided.

Go to article

Integral Program, Saint Mary's College Of California Jul 2007

Integral Program, Saint Mary's College Of California

Undergraduate Academic Catalog

No abstract provided.

Go to article

Section I, Saint Mary's College Of California Jul 2007

Section I, Saint Mary's College Of California

Undergraduate Academic Catalog

No abstract provided.

Go to article

First Prev Next Last