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Sci-Tech News

No abstract provided.

The Santa Clara, 2014-02-27, Santa Clara University

The Santa Clara

No abstract provided.

The Santa Clara,2014-02-20, Santa Clara University

The Santa Clara

No abstract provided.

The Santa Clara, 2014-02-13, Santa Clara University

The Santa Clara

No abstract provided.

In-Package Nonthermal Plasma Degradation Of Pesticides On Fresh Produce, N. Misra, Shashi Pankaj, Tony Walsh, Finbarr O'Regan, Paula Bourke, Patrick J. Cullen

Articles

In-package nonthermal plasma (NTP) technology is a novel technology for the decontamination of foods and biological materials. This study presents the first report on the potential of the technology for the degradation of pesticide residues. A cocktail of pesticides, namely Azoxystrobin, Cyprodinil, Fludioxonil and Pyriproxyfen was tested on strawberries. The concentrations of these pesticides were monitored in priori and post- plasma treatment using GC-MS/MS. An applied voltage and time dependent degradation of the pesticides was observed for treatment voltages of 60, 70 and 80 kV and treatment durations ranging from 1 to 5 min, followed by 24 h in-pack storage. …

The Santa Clara, 2014-02-06, Santa Clara University

The Santa Clara

No abstract provided.

Randomized And Efficient Authentication In Mobile Environments, Wei Jiang, Dan Lin, Feng Li, Elisa Bertino

Cyber Center Publications

In a mobile environment, a number of users act as a network nodes and communicate with one another to acquire location based information and services. This emerging paradigm has opened up new business opportunities and enables numerous applications such as road safety enhancement, service recommendations and mobile entertainment. A fundamental issue that impacts the success of these applications is the security and privacy concerns raised regarding the mobile users. In that, a malicious user or service provider can track the locations of a user traveled so that other malicious act can be carried out more effectively against the user. Therefore, …

Nanoscale Growth Of Cds And Pbs Semiconductor Within Calix[4]Arene Langmuir-Blodgett Lb Film For Ion Sensing Application, Faridah Lisa Supian, Tim H. Richardson, Alexei V. Nabok, Mary Deasy, M. Syahriman M. Azmi

Articles

The characteristics of cadmium sulphide (CdS) and lead sulphide (PbS) nanoparticles, grown inside Langmuir-Blodgett (LB) multilayer films of 5,11,17,23-tetra-tert-butyl-25,27-dicarboxymethoxy-26,28-dihydroxycalix [arene (I), have been studied using ellipsometry, UV-visible spectroscopy, and transmission electron microscopy (TEM). Multilayer films were formed by transferring a floating Langmuir monolayer of I onto substrates using LB deposition and water subphase containing Pb2+ or Cd2+ ions. The nanoparticles were fabricated by exposing cadmium-or lead-containing multilayer films of I (20-80 monolayers thick) to hydrogen sulphide (H2S) gas for 12 hours. By Gaussian fitting of the absorbance - energy spectra, the size of the clusters and their dispersion were found …

The Santa Clara, 2014-01-30, Santa Clara University

The Santa Clara

No abstract provided.

The Santa Clara, 2014-01-23, Santa Clara University

The Santa Clara

No abstract provided.

An Imaging-Based Platform For High-Content, Quantitative Evaluation Of Therapeutic Response In 3d Tumour Models, Jonathan P. Celli, Imran Rizvi, Adam R. Blanden, Iqbal Massodi, Iqbal Massodi, Michael D. Glidden, Brian Pogue, Tayyaba Hasan

Dartmouth Scholarship

While it is increasingly recognized that three-dimensional (3D) cell culture models recapitulate drug responses of human cancers with more fidelity than monolayer cultures, a lack of quantitative analysis methods limit their implementation for reliable and routine assessment of emerging therapies. Here, we introduce an approach based on computational analysis of fluorescence image data to provide high-content readouts of dose-dependent cytotoxicity, growth inhibition, treatment-induced architectural changes and size-dependent response in 3D tumour models. We demonstrate this approach in adherent 3D ovarian and pancreatic multiwell extracellular matrix tumour overlays subjected to a panel of clinically relevant cytotoxic modalities and appropriately designed controls …

The Santa Clara, 2014-01-16, Santa Clara University

The Santa Clara

No abstract provided.

Introduction To Volume 6, Michael Sherr

Journal of Adolescent and Family Health

Introduction to Volume 6

The Santa Clara, 2014-01-09, Santa Clara University

The Santa Clara

No abstract provided.

Variedades De Sorgos Bmr: Una Alternativa Para Producir Forraje, Instituto Nacional De Innovación Y Transferencia En Tecnología Agropecuaria (Inta-Costa Rica), Roberto Tinoco Mora

INTSORMIL Scientific Publications

Nervadura de color café en variedad de sorgo BMR.

Durante el año 2010, el Instituto Nacional de Innovación y Transferencia en Tecnología Agropecuaria (INTA-Costa Rica), conjuntamente con el Programa Colaborativo y de Apoyo a la Investigación del Sorgo, el Mijo y otros Granos (INTSORMIL, CRSP) ubicado en El Salvador. elaboraron un proyecto de investigación para evaluar la adaptación, producción y valor nutritivo de una colección de 15 variedades de sorgo (Sorghum bicolor) para alimentación animal. Las variedades disponían del gen recesivo denominado BMR, siglas en inglés de "Brown mid rib" que significan "vena café" (Figura 1).

Este gen tiene la …

Overcoming India’S Food Security Challenges: The Role Of Intellectual Property Management And Technology Transfer Capacity Building, Stanley Kowalski, Aarushi Gupta, Ifica Mehra

Law Faculty Scholarship

The growth of the Indian economy after Independence has had little impact on the food security of the country. The paper analyses the development of advanced crop varieties through the use of agricultural technologies (hereinafter "agbiotech") within the technology transfer system, a framework which comprises of the interactions of intellectual property rights law and agricultural research and development in India. Through this, the author argues that agricultural innovation in India is failing due to the absence of connections within the technology transfer system and advocates for the creation of a national program aimed at advancing IP and tech-transfer capacity in …

Degradable Plastics And Their Potential To Affect Solid Waste Systems, Krista L. Thyberg, David J. Tonjes

Technology & Society Faculty Publications

Plastic waste forms a substantial part of municipal solid waste and has caused environmental concerns, particularly due to chemical contamination of the environment and effects from persistent litter. Plastics also complicate waste management processes, such as by having poor recovery rates through recycling, and causing contamination in composting operations. One potential means to address some of these challenges is through degradable plastics which, unlike conventional plastics, are designed to decompose at an accelerated rate in specific environments. Degradable plastics aim to address the end-of-life of plastic products and are intended to reduce the environmental impacts associated with their use and …

Santa Clara Magazine, Volume 56 Number 1, Fall 2014, Santa Clara University

Santa Clara Magazine

14 - HEARING THE CRY OF THE POOR: The Jesuit martyrs of El Salvador by Ron Hansen M.A. ’95. Their murder in November 1989 marked a turning point in the country’s civil war. What do they have to say to us now?

25 - THE OPEN WINDOW by Lucía Cerna. A first-person account by the housekeeper in the Jesuit community at the University of Central America. She witnessed the killing of six Jesuits by government soldiers, and telling the truth about that night cost her dearly.

29 - WHAT DO YOU STAND FOR? By Mary Jo (Hull) Ignoffo ’78. The …

Santa Clara Magazine, Volume 55 Number 2, Winter 2014, Santa Clara University

Santa Clara Magazine

16 - RISE UP, MY LOVE by Brian Doyle. There are sanctuaries built for worship—and that carry beauty visible to everyone. Then there are the improvised places of faith, more subtle in how they speak to the wonder worked there.

18 - THE CHAPLAIN IS IN THE HOUSE by Jeremy Herb ’08 with Ppotos by Pat Semansky ’08. With the way things have gone recently in Congress, looking to the heavens for some help and guidance might seem like a very good idea. Enter Pat Conroy, S.J., M.Div. ’83.

24 - WELCOME TO CITIZENVILLE by Jim Cottrill. Who published the …

Design, Synthesis And Applications Of Fluorescent And Electrochemical Probes, Giri K. Vegesna

Dissertations, Master's Theses and Master's Reports - Open

“Seeing is believing” the proverb well suits for fluorescent imaging probes. Since we can selectively and sensitively visualize small biomolecules, organelles such as lysosomes, neutral molecules, metal ions, anions through cellular imaging, fluorescent probes can help shed light on the physiological and pathophysiological path ways. Since these biomolecules are produced in low concentrations in the biochemical pathways, general analytical techniques either fail to detect or are not sensitive enough to differentiate the relative concentrations. During my Ph.D. study, I exploited synthetic organic techniques to design and synthesize fluorescent probes with desirable properties such as high water solubility, high sensitivity and …

The Role Of The Nurse In Family Coping After Miscarriage, Wesley Hannebaum

Celebration of Undergraduate & Graduate Research, Scholarship, and Creative Activities Materials

When a miscarriage occurs, it affects the entire family unit, making coping an important part of healing during this time. After miscarriage, women are at increased risk for developing mental disorders such as anxiety and depression. Miscarriage is seldom seen as a concern for the father of the lost child, and thus their feelings are often ignored. It is important for the nurse to know how to best help these men, women, and the rest of the involved family cope after miscarriage so they can move on in a healthy way. The following is a review of the literature to …

Fate Of Antimicrobials And Antimicrobial Resistance Genes In Simulated Swine Manure Storage, Stacey R. Joy, Xu Li, Daniel D. Snow, John Gilley, Bryan L. Woodbury, Shannon L. Bartelt-Hunt

School of Natural Resources: Faculty Publications

The behavior of three antibiotics (bacitracin, chlortetracycline, and tylosin) and two classes of antibiotic resistance genes (ARGs), tet and erm, were monitored in swine manure slurry under anaerobic conditions. First-order decay rates were determined for each antibiotic with half-lives ranging from1 day (chlortetracycline) to 10 days (tylosin). ARGs were monitored in the swine manure slurry, and losses of approximately 1 to 3 orders of magnitude in relative abundance were observed during the 40 day storage period. First-order degradation profiles were observed for chlortetracycline and its corresponding resistance genes, tet(X) and tet(Q). Tylosin was degraded to approximately 10% …

Identidroid: Android Can Finally Wear Its Anonymous Suit, Bilal Shebaro, Oyindamola Oluwatimi, Daniele Midi, Elisa Bertino

Cyber Center Publications

Because privacy today is a major concern for mobile applications, network anonymizers are widely available on smartphones, such as Android. However despite the use of such anonymizers, in many cases applications are still able to identify the user and the device by different means than the IP address. The reason is that very often applications require device services and information that go beyond the capabilities of anonymous networks in protecting users’ identity and privacy. In this paper, we propose two solutions that address this problem. The first solution is based on an approach that shadows user and application data, device …

Investigation Of Cardiac Electrophysiology In Human Ventricular Tissue, Kathleen Brownson

Theses and Dissertations--Biomedical Engineering

Individuals with cardiomyopathy are at higher risk to die from sudden cardiac arrest than those with non-failing (NF) hearts. This study examined the differences in electrical properties of failing and NF human hearts in terms of cardiac memory through explicit control of diastolic intervals in a sinusoidal fashion, restitution of action potential duration (APD) through standard and dynamic pacing protocols, maximum rate of depolarization and APD alternans. Recordings of transmembrane potentials were made in tissues extracted from patients with heart failure and one donor NF heart. Computational simulations were performed using the O’Hara Rudy model for generating surrogates of control …

Research Week 2014, Linda Gardiner

Office of Research Institutional Research and Scholarship

No abstract provided.

Eastern Michigan University Graduate Catalog, 2014-2015, Office Of The Registrar

Graduate Catalogs

No abstract provided.

Water And Nutrient Reuse Within Closed Hydroponic Systems, Emerson Christie

College of Graduate Studies: Theses & Dissertations

Currently, little research exists on the maintenance of individual nutrient balance within the nutrient solutions of closed hydroponic systems and how this maintenance may result in reductions in water and nutrient consumption. In this study, a nutrient solution management procedure was developed to maintain outputs while minimizing inputs. Lactuca sativa (lettuce) crops were grown in six closed hydroponic systems utilizing the nutrient film technique. Electrical conductivity was used as the primary indicator of nutrient solution quality and determined if the nutrient solution was discarded and replaced (control systems) or restored (test systems). Restorations in test systems were made individually to …

Dielectric Characterization Of Coastal Cartilage Chondrocytes, Michael W. Stacey, Ahmet C. Sabuncu, Ali Beskok

Bioelectrics Publications

BACKGROUND: Chondrocytes respond to biomechanical and bioelectrochemical stimuli by secreting appropriate extracellular matrix proteins that enable the tissue to withstand the large forces it experiences. Although biomechanical aspects of cartilage are well described, little is known of the bioelectrochemical responses. The focus of this study is to identify bioelectrical characteristics of human costal cartilage cells using dielectric spectroscopy.

METHODS: Dielectric spectroscopy allows non-invasive probing of biological cells. An in house computer program is developed to extract dielectric properties of human costal cartilage cells from raw cell suspension impedance data measured by a microfluidic device. The dielectric properties of chondrocytes are …

Calcium-Mediated Pore Expansion And Cell Death Following Nanoelectroporation, Olga N. Pakhomova, Betsy Gregory, Iurii Semenov, Andrei G. Pakhomov

Bioelectrics Publications

Opening of long-lived pores in the cell membrane is the principal primary effect of intense, nanosecond pulsed electric field (nsPEF). Here we demonstrate that the evolution of pores, cell survival, the time and the mode of cell death (necrotic or apoptotic) are determined by the level of external Ca²⁺ after nsPEF. We also introduce a novel, minimally disruptive technique for nsEP exposure of adherent cells on indium tin oxide (ITO)-coated glass coverslips, which does not require cell detachment and enables fast exchanges of bath media. Increasing the Ca²⁺ level from the nominal 2–5 μM to 2 mM for …

Introduction To Fourth Special Issue On Electroporation-Based Technologies And Treatments, Damijan Miklavčič, Lluis M. Mir, P. Thomas Vernier

Bioelectrics Publications

This fourth special electroporation-based technologies and treatments issue of the Journal of Membrane Biology contains reports on recent developments in the field of electroporation by participants in the 7th International Workshop and Postgraduate Course on electroporation based technologies and treatments (EBTT 2013) held in Ljubljana, November 17–23, 2013. The 65 participants included faculty members, invited lecturers, special guests, and young scientists, and students from 16 countries. In addition to lectures on the fundamentals, this year’s sessions included talks on microbial inactivation by pulsed electric fields, modeling of intracellular electroporation, electroporation in food processing, and electrotransfer-facilitated DNA vaccination.