Physical Sciences and Mathematics Commons^™

Performance Of Newly Developed Hollow Fiber Module With Spacer In Integrated Anaerobic–Aerobic Fungi Reactor Treating Textile Wastewater, Faisal I. Hai, Kazuo Yamamoto, Kensuke Fukushi

Faculty of Science - Papers (Archive)

A submerged microfiltration membrane bioreactor implementing the white-rot fungus Coriolus versicolor was developed for effective treatment of textile dye wastewater [1]. In that system membrane fouling was precluded by placing a bundle of hollow fibers within a pre-filtration assembly, so as to avoid direct deposition of sludge onto it, together with its periodic high-pressure back-washing and low-dose chemical back-flushing. However, the extreme vulnerability of the bare membrane used in that study to inter-fibral deposition of sludge leading to merging of fibers indicated necessity of development of an appropriate module so that the proposed system may enjoy more flexibility in terms …

Dichlorobis(2,5-Diphenyl-1,3,4-Thiaâ­Diazole-κn3)Palladium(Ii), Peter Steel, Christopher Richardson

Faculty of Science - Papers (Archive)

The title complex, [PdCl2(C14H10N2S)2], crystallizes with two half-molecules in the asymmetric unit which have significantly different conformations of the aromatic rings of the coordinated ligands. The molecules are centrosymmetric.

Two Domains Within The Mycoplasma Hyopneumoniae Cilium Adhesin Bind Heparin, C. Jenkins, J. L. Wilton, F. C. Minion, L. Falconer, Mark J. Walker, S. P. Djordjevic

Faculty of Science - Papers (Archive)

Mycoplasma hyopneumoniae is the causative agent of porcine enzootic pneumonia, a chronic and economically significant respiratory disease that affects swine production worldwide. M. hyopneumoniae adheres to, and adversely affects the function of ciliated epithelial cells of the respiratory tract, and the cilium adhesin (P97), is intricately but not exclusively involved in this process. Although binding of pathogenic bacteria to glycosaminoglycans is a recognised step in pathogenesis, knowledge of glycosaminoglycan-binding proteins is lacking in M. hyopneumoniae. However, heparin and other sulfated polysaccharides are known to block the binding of M. hyopneumoniae to purified swine respiratory cilia. In this study, four regions …

Synthesis And In Vitro Binding Of N,N-Dialkyl-2-Phenylindol-3-Ylglyoxylamides For The Peripheral Benzodiazepine Binding Sites, T. P. Homes, F. Mattner, Paul A. Keller, A. Katsifis

Faculty of Science - Papers (Archive)

A series of N,N-dialkyl-2-phenylindol-3-ylglyoxylamides bearing the halogens iodine and bromine were synthesised and their binding affinity for the peripheral benzodiazepine binding sites (PBBS) in rat kidney mitochondrial membranes were evaluated using [3H]-PK11195. Central benzodiazepine receptor (CBR) affinities were also evaluated in rat cortices using 3H-flumazenil to determine their selectivity for PBBS over CBR. The tested compounds had PBBS binding affinities (IC50) ranging from 7.86 nM to 618 nM, with all compounds showing high selectivity over the CBR (CBR IC50 > 5000 nM). Among the 12 compounds tested, those with a diethylamide group were the most potent. The highest affinity iodinated PBBS …

Forage Fibre Digestion, Rates Of Feed Passage And Gut Fill In Juvenile And Adult Red Kangaroos Macropus Rufus Desmarest: Why Body Size Matters, Adam J. Munn, Terence J. Dawson

Faculty of Science - Papers (Archive)

Using red kangaroos Macropus rufus Desmarest, a large (>20 kg) marsupial herbivore, we compared the digestive capabilities of juveniles with those of mature, non-lactating females on high-quality forage (chopped lucerne Medicago sativa hay) of 43 +/- 1% neutral-detergent fibre (NDF) and poorer quality, high-fibre forage (chopped oaten Avena sativa hay) of 64 +/- 1% NDF. On chopped lucerne apparent dry matter (DM) digestibilities by young-at-foot (YAF) red kangaroos (an age that would normally be taking some milk from their mother), weaned juveniles and mature females were similar (55-59%). On chopped oaten hay apparent DM digestibility was lower in the …

The (Aboriginal) Face Of The (Australian) Earth, Lesley M. Head

Faculty of Science - Papers (Archive)

No abstract provided.

743 ± 17 Ma Granite Clast From Jurassic Conglomerate, Kamiaso, Mino Terrane, Japan: The Case For South China Craton Provenance (Korean Gyeonggi Block?), Allen Phillip Nutman, Y Sano, K Terada, H Hidaka

Faculty of Science - Papers (Archive)

The polymict Kamiaso Conglomerate (Mino Terrane, Japan) contains Jurassic to Palaeoproterozoic clasts—probably derived from Korean basement that lay nearby to the northwest at time of deposition. Clast K2 broke cleanly into two halves during sampling (but the halves were recombined for zircon separation). A third of the K2 zircons are colourless euhedral prisms with oscillatory zoning, with no inheritance and yielded a SHRIMP U/Pb date of 743±17 Ma. Two thirds of K2 zircons are brown oscillatory-zoned corroded prisms with a date of 1860±8 Ma, with inherited cores up to ∼2460 Ma. A likely explanation for this could be that clast …

Proteomic Dissection Of Dna Polymerization, Jennifer L. Beck, Thitima Urathamakul, Stephen James Watt, Margaret Sheil, Patrick M. Schaeffer, Nicholas E. Dixon

Faculty of Science - Papers (Archive)

DNA polymerases replicate the genome by associating with a range of other proteins that enable rapid, high-fidelity copying of DNA. This complex of proteins and nucleic acids is called the replisome. Proteins of the replisome must interact with other networks of proteins, such as those involved in DNA repair. Many of the proteins involved in DNA polymerisation and the accessory proteins are known, but the array of proteins they interact with, and the spatial and temporal arrangement of these interactions is a current research topic. Mass spectrometry is a technique that can be used to identify the sites of these …

Role Of Habitat Complexity In Structuring Temperate Rockpool Ichthyofaunas, S. P. Griffiths, A. R. Davis, R. J. West

Faculty of Science - Papers (Archive)

Habitat complexity in temperate intertidal rockpools was manipulated to assess its effect on fish assemblage structure. We modified the complexity of the substratum within pools by adding or removing loose rocks. The complexity of the water column within pools was modified by the removal of macro-algae and the addition of artificial algae. We applied 5 treatments to 40 pools in 2 locations on the southeast Australian coast: addition of rocks and algae (+R+A), removal of rocks and algae (–R–A), removal of rocks but addition of algae (–R+A), addition of rocks and removal of algae (+R–A), and unmanipulated control pools (C). …

Detection Of Moisture Stress In Eucalyptus Camaldulensis Using Leaf-Level Spectral Reflectance: Implications For Remote Sensing, Laurie A. Chisholm

Faculty of Science - Papers (Archive)

Foliage moisture stress may be detectable by remote sensing using high resolution spectral data, but meaningful diagnosis requires that plant water status be assessed on the ground under controlled conditions. Design parameters of an experimental plantation of E. camaldulensis (River red gum), were used to examine tree-level responses to moisture stress, as measured by xylem water potential, and relationships to physiological parameters including spectral reflectance, chlorophyll flurescence, and cholorphyll across a range of stress categories.

Asymmetric Synthesis Of Anti-1,2-Amino Alcohols Via The Borono-Mannich Reaction: A Formal Synthesis Of (-)-Swainsonine, Christopher W. G. Au, Stephen G. Pyne

Faculty of Science - Papers (Archive)

Chiral α-hydroxy-aldehydes generated in situ by the ADH reaction of vinyl sulfones undergo a borono-Mannich reaction with β-styrenyl boronic acid and primary amines to give anti-1,2-amino alcohols in high enantiomeric purities (ee 83-95%). This new method allows much more rapid access to these valuable chiral building blocks that has been used in a short formal synthesis (10 synthetic steps from 4-penten-1-ol) of (-)-swainsonine.

Meaningful Labeling Of Integrated Query Interfaces, Eduard Dragut, Clement Yu, Weiyi Meng

Cyber Center Publications

The contents of Web databases are accessed through queries formulated on complex user interfaces. In many domains of interest (e.g. Auto) users are interested in obtaining information from alternative sources. Thus, they have to access many individual Web databases via query interfaces. We aim to construct automatically a well-designed query interface that integrates a set of interfaces in the same domain. This will permit users to access information uniformly from multiple sources. Earlier research in this area includes matching attributes across multiple query interfaces in the same domain and grouping related attributes. In this paper, we investigate the naming of …

Collapsar: A Vm-Based Honeyfarm And Reverse Honeyfarm Architecture For Network Attack Capture And Detention, Xuxian Jiang, Dongyan Xu, Yi-Min Wang

Department of Computer Science Technical Reports

No abstract provided.

Application Of Spectral Analysis To Dna Sequences, Lan Zhao

Department of Computer Science Technical Reports

No abstract provided.

From Physics To Illumination Models Of Subsurface Scattering, Huiying Xu, Yi Ru, Yinlong Sun

Department of Computer Science Technical Reports

No abstract provided.

Enabling Autonomic Adaption Of Virtual Computational Environments In A Shared Distributed Infrastructure, Paul Ruth, Junghwan Rhee, Dongyan Xu, Rick Kennell, Sebastien Goasguen

Department of Computer Science Technical Reports

No abstract provided.

Magnetic Order In The Quasi-One-Dimensional Spin-1/2 Molecular Chain Compound Copper Pyrazine Dinitrate, T Lancaster, S J. Blundell, M L. Brooks, P J. Baker, F L. Pratt, Jamie L. Manson, C P. Landee, C Baines

Chemistry and Biochemistry Faculty Publications

We present evidence of magnetic order in the quasi-one-dimensional spin-1/2 molecular chain compound, copper pyrazine dinitrate Cu(C4H4N2)(NO3)(2). Zero field muon-spin relaxation measurements made at dilution refrigerator temperatures show oscillations in the measured asymmetry characteristic of a quasistatic magnetic field at the muon sites. Our measurements provide convincing evidence for long-range magnetic order below a temperature T-N=107(1) mK. This leads to an estimate of the interchain coupling constant of vertical bar J'vertical bar/k(B)=0.046 K and to a ratio of vertical bar J'/J vertical bar=4.4x10(-3).

Ecoscale, A Semi-Quantitative Tool To Select An Organic Preparation Based On Economical And Ecological Parameters, Koen Van Aken, Lucjan Strekowski, Luc Patiny

Chemistry Faculty Publications

A novel post-synthesis analysis tool is presented which evaluates quality of the organic preparation based on yield, cost, safety, conditions and ease of workup/purification. The proposed approach is based on assigning a range of penalty points to these parameters. This semi-quantitative analysis can easily be modified by other synthetic chemists who may feel that some parameters should be assigned different relative penalty points. It is a powerful tool to compare several preparations of the same product based on safety, economical and ecological features.

Ventrolateral Prefrontal Cortex Activation And Attentional Bias In Response To Angry Faces In Adolescents With Generalized Anxiety Disorder, Christopher Monk, Eric E. Nelson, Erin B. Mcclure, Karin Mogg, Brendan P. Bradley, Ellen Leibenluft, James R. Blair, Geng Chen, Dennis S. Charney, Monique Ernst, Daniel S. Pine

Chemistry Faculty Publications

Objective: While adolescent anxiety disorders represent prevalent, debilitating conditions, few studies explore their brain physiology. Using event-related functional MRI (fMRI) and a behavioral measure of attention to angry faces, we evaluated differences in response between healthy adolescents and adolescents with generalized anxiety disorder (GAD). Method: In the primary trials of interest, 18 adolescents with GAD and 15 comparisons of equivalent age/gender/IQ viewed angry/neutral face pairs during fMRI acquisition. Following the presentation of each face pair, subjects pressed a button to a probe that was either on the same (congruent) or opposite (incongruent) side as the angry face. Reaction time differences …

An Improved Ant Colony Algorithm With Diversified Solutions Based On The Immune Strategy, Ling Qin, Yi Pan, Ling Chen, Yixin Chen

Computer Science Faculty Publications

Background: Ant colony algorithm has emerged recently as a new meta- heuristic method, which is inspired from the behaviours of real ants for solving NP-hard problems. However, the classical ant colony algorithm also has its defects of stagnation and premature. This paper aims at remedying these problems.

Results: In this paper, we propose an adaptive ant colony algorithm that simulates the behaviour of biological immune system. The solutions of the problem are much more diversified than traditional ant colony algorithms.

Conclusion: The proposed method for improving the performance of traditional ant colony algorithm takes into account the polarization of the …

A Novel Approach To Phylogenetic Tree Construction Using Stochastic Optimization And Clustering, Ling Qin, Yixin Chen, Yi Pan, Ling Chen

Computer Science Faculty Publications

Background: The problem of inferring the evolutionary history and constructing the phylogenetic tree with high performance has become one of the major problems in computational biology.

Results: A new phylogenetic tree construction method from a given set of objects (proteins, species, etc.) is presented. As an extension of ant colony optimization, this method proposes an adaptive phylogenetic clustering algorithm based on a digraph to find a tree structure that defines the ancestral relationships among the given objects.

Conclusion: Our phylogenetic tree construction method is tested to compare its results with that of the genetic algorithm (GA). Experimental results show that …

Zsbt: A Novel Algorithm For Tracing Dos Attackers In Manets, Xin Jin, Yaoxue Zhang, Yi Pan, Yuezhi Zhou

Computer Science Faculty Publications

Denial of service (DoS) attack is a major class of security threats today. They consume resources of remote hosts or network and make them deny or degrade services for legitimate users. Compared with traditional Internet, the resources, such as bandwidth, memory, and battery power, of each node are more limited in mobile ad hoc networks (MANETs). Therefore, nodes in MANETs are more vulnerable to DoS attacks. Moreover, attackers in MANETs cannot only use IP spoofing to conceal their real identities but also move arbitrarily, which makes it a challenging task to trace a remote attacker in MANETs. In this paper, …

Overview Of Nisc & Isac

National Invasive Species Council

Executive Order (EO) 13112

ISAC

Federal Advisory Committee Act

ISAC Charter

ISAC Subcommittees

Membership of ISAC

Wavelets In Real-Time Rendering, Weifeng Sun

Electronic Theses and Dissertations

Interactively simulating visual appearance of natural objects under natural illumination is a fundamental problem in computer graphics. 3D computer games, geometry modeling, training and simulation, electronic commerce, visualization, lighting design, digital libraries, geographical information systems, economic and medical image processing are typical candidate applications. Recent advances in graphics hardware have enabled real-time rasterization of complex scenes under artificial lighting environment. Meanwhile, pre-computation based soft shadow algorithms are proven effective under low-frequency lighting environment. Under the most practical yet popular all-frequency natural lighting environment, however, real-time rendering of dynamic scenes still remains a challenging problem. In this dissertation, we propose a …

External Cavity Multiwavelength Semiconductor Mode-Locked Laser Gain Dynamics, Luis Archundia-Berra

Electronic Theses and Dissertations

External cavity semiconductor mode-locked lasers can produce pulses of a few picoseconds. The pulses from these lasers are inherently chirped with a predominant linear chirp component that can be compensated resulting in sub-picosecond pulses. External cavity semiconductor mode-locked lasers can be configured as multiwavelength pulse sources and are good candidates for time and wavelength division multiplexing applications. The gain medium in external cavity semiconductor mode-locked lasers is a semiconductor optical amplifier (SOA), and passive and hybrid mode-locked operation are achieved by the introduction of a saturable absorber (SA) in the laser cavity. Pump-probe techniques were used to measure the intracavity …

Application Of The Empirical Likelihood Method In Proportional Hazards Model, Bin He

Electronic Theses and Dissertations

In survival analysis, proportional hazards model is the most commonly used and the Cox model is the most popular. These models are developed to facilitate statistical analysis frequently encountered in medical research or reliability studies. In analyzing real data sets, checking the validity of the model assumptions is a key component. However, the presence of complicated types of censoring such as double censoring and partly interval-censoring in survival data makes model assessment difficult, and the existing tests for goodness-of-fit do not have direct extension to these complicated types of censored data. In this work, we use empirical likelihood (Owen, 1988) …

A Comparative Study Of Ant Colony Optimization, Matthew Becker

Electronic Theses and Dissertations

Ant Colony Optimization (ACO) belongs to a class of biologically-motivated approaches to computing that includes such metaheuristics as artificial neural networks, evolutionary algorithms, and artificial immune systems, among others. Emulating to varying degrees the particular biological phenomena from which their inspiration is drawn, these alternative computational systems have succeeded in finding solutions to complex problems that had heretofore eluded more traditional techniques. Often, the resulting algorithm bears little resemblance to its biological progenitor, evolving instead into a mathematical abstraction of a singularly useful quality of the phenomenon. In such cases, these abstract computational models may be termed biological metaphors. Mindful …

Simplified Low Copy Number Dna Analysis By Post Pcr Purification, Pamela Smith

Electronic Theses and Dissertations

Frequently evidentiary items contain an insufficient quantity of DNA to obtain complete or even partial DNA profiles using standard forensic gentotyping techniques. Here, various methods of post PCR purification were evaluated for their effects on the sensitivity of fluophore-based allelic detection. A method of post PCR purification is described which increases the sensitivity of standard 28 cycle PCR such that low copy number DNA templates (<100 pg DNA) can be analyzed. Full profiles were consistently obtained with as little as 20 pg template DNA without increased cycle number. In mock case type samples with dermal ridge fingerprints, genetic profiles were obtained by amplification with 28 cycles followed by post-PCR purification whereas no profiles were obtained without purification of the PCR product. Allele drop-out, increased stutter, and contamination (allele drop-in) typical of LCN analysis were observed. A single incident of contamination was observed in a reagent blank (not duplicated upon re-amplification) however, no contamination was observed in negative amplification controls.

High Birefringence And Low Viscosity Liquid Crystals, Chien-Hui Wen

Electronic Theses and Dissertations

In this dissertation, liquid crystal (LC) materials and devices are investigated in order to meet the challenges for photonics and displays applications. We have studied three kinds of liquid crystal materials: positive dielectric anisotropic LCs, negative dielectric anisotropic LCs, and dual- frequency LCs. For the positive dielectric anisotropic LCs, we have developed some high birefringence isothiocyanato tolane LC compounds with birefringence ~0.4, and super high birefringence isothiocyanato biphenyl-bistolane LC compounds with birefringence as high as ~0.7. Moreover, we have studied the photostability of several high birefringence LC compounds, mixtures, and LC alignment layers in order to determine the failure mechanism …

On The Use Of Gaussian Filter Functions For Adaptive Optics, Merfit Assad

Electronic Theses and Dissertations

For adaptive optic systems, the use of aperture filter functions calculated using various Zernike modes can be useful in removing lower-order aberrations caused by atmospheric turbulence. Traditionally, these filter functions are calculated using the step function depicting a hard aperture that introduces integrals that are sometimes difficult to integrate and must be done numerically. The Gaussian method can be used in place of the conventional method for calculating the aperture filter functions. Evaluation of the Gaussian approximation for modeling a finite receiver aperture can be made by comparison of reduction in phase variance with results achieved using the conventional method. …