Digital Commons Network^™

Constraining The Physical State Of The Hot Gas Halos In Ngc 4649 And Ngc 5846, Alessandro Paggi, Dong-Woo Kim, Craig Anderson, Doug Burke, Raffaele D'Abrusco, Giuseppina Fabbiano, Antonella Fruscione, Tara Gokas, Jen Lauer, Michael Mccollough, Doug Morgan, Amy Mossman, Ewan O'Sullivan, Ginevra Trinchieri, Saeqa Vrtilek, Silvia Pellegrini, Aaron Romanowsky, Jean Brodie

Faculty Publications

We present results of a joint Chandra/XMM-Newton analysis of the early-type galaxies NGC 4649 and NGC 5846 aimed at investigating differences between mass profiles derived from X-ray data and those from optical data, to probe the state of the hot interstellar medium (ISM) in these galaxies. If the hot ISM is at a given radius in hydrostatic equilibrium (HE), the X-ray data can be used to measure the total enclosed mass of the galaxy. Differences from optically derived mass distributions therefore yield information about departures from HE in the hot halos. The X-ray mass profiles in different angular …

Language, Immigration And Acculturation In The Short Stories Of Ha Jin, Louis J. Parascandola, Rajul Punjabi

Asian American Literature: Discourses & Pedagogies

"The Problems of Acculturation: Flushing, Queens, in the Short Stories of Ha Jin"

Abstract:

Noted author Ha Jin is often thought of as a Chinese author despite the fact that all of his writing has been written in English. Two of his later works, A Free Life (2007) and A Good Fall (2009) are set among the Chinese community in Flushing, Queens. This essay examines three short stories "An English Professor," "A Pension Plan," and "Temporary Love" from A Good Fall. In these works, Jin discusses the problems of acculturation these immigrants face, including learning English, finding employment, and dealing …

A Qualitative Analysis Of A Team's Experience Of Coping With Bereavement After The Death Of A Head Coach, Matthew Paul Gonzalez

Master's Theses

The consequences of coping with death as an athlete have been documented in the literature by a variety of studies. However, these studies have remained largely focused on coping with the death of a teammate. This study examined the inter- and intrapersonal impact of experiencing the death of a head coach. Experiencing the death of a head coach during the season may have profound and varied psychosocial consequences for all members of a team. A collegiate team was identified as having experienced the death of its head coach during his tenure and from that team five participants (four players and …

Diet Induced Obesity Alters Muscle Spindle Afferent Function In Adult Mice, Lubayna Elahi

Master's Theses

Individuals with obesity are more likely to fall and exhibit balance instability. The reason for this is likely multifactorial, but there is some evidence that sensory function is impaired during obesity. We tested the hypothesis that muscle proprioceptor function is compromised in a mouse model of diet induced obesity. We used an in vitro muscle-nerve preparation to record muscle spindle afferent responses to physiological stretch and sinusoidal vibration. We compared the responses of mice on a control diet (10% kcal fat) with those eating a high fat diet (60% kcal fat) alone or in combination with either aspirin (120mg/kg/day in …

Quantitative Analysis Of International Journal Of Library And Information Studies, Dr. Zafrunnisha N. Zafrunnisha, Sunil B

Library Philosophy and Practice (e-journal)

The study consist of 371 citations which have been appeared in two volumes i.e., 8 issues of International Journal of Library and Information Studies during the years 2014 and 2015. The distribution pattern of citation by type of documents i.e. journals are heavily cited (43.54%). It was observed that books fell in the next order (11.74%) followed by conference proceedings, reports, symposia papers representing 28.42 percent of the total which occupy an important place in usage. The average number of citations per thesis was 125.18.

Teaching In The Age Of Humans Helping Students Think About Climate Change., Grinell Smith

Faculty Publications

To convey the magnitude and rapidity of current climate change and the severity of predictions for the next century, I present essential climate science information using four key sets of data and contextualize that information with personal anecdotes. I then consider the reasons for the large gap between the scientific consensus about anthropogenic climate change and public perceptions of that consensus. With several known challenges to climate change education in mind, I offer four recommendations for teachers that map relevant social psychology to pedagogy: (1) establish a learning community that works to disrupt in-group favoritism and reduce attribution bias; (2) …

Environmental And Climate Justice Along The Brahmaputra River In Northeast India, Costanza Rampini

Faculty Publications, Environmental Studies

The glaciers of the Himalayas are the source of all of Asia’s major rivers and are crucial to Asia’s water supply, economies, and livelihoods. The Himalayan region is uniquely vulnerable to the impacts of anthropogenic climate change, while also becoming one of the most dammed regions in the world. This case study explores the unequal distribution of the impacts of climate change and dam building along the Brahmaputra River in Northeast India. It examines how the combined impacts of these two processes negatively affect local communities and explores environmental and climate justice issues. In discussing climate change impacts and hydropower …

Robust And Agile System Against Fault And Anomaly Traffic In Software Defined Networks, Mihui Kim, Younghee Park, Rohit Kotalwar

Faculty Publications

The main advantage of software defined networking (SDN) is that it allows intelligent control and management of networking though programmability in real time. It enables efficient utilization of network resources through traffic engineering, and offers potential attack defense methods when abnormalities arise. However, previous studies have only identified individual solutions for respective problems, instead of finding a more global solution in real time that is capable of addressing multiple situations in network status. To cover diverse network conditions, this paper presents a comprehensive reactive system for simultaneously monitoring failures, anomalies, and attacks for high availability and reliability. We design three …

Populism During The Estado Novo, Michael Conniff

Faculty Publications, History

Although the elections were suppressed during the Estado Novo, some politicians gained valuable experience with techniques that would later be called populism. This article describes the creation of this style by Mayor Pedro Ernesto and the careers of six other leaders called populists. We conclude that the Vargas regime really helped the rise of populism.

The Sluggs Survey: A Catalog Of Over 4000 Globular Cluster Radial Velocities In 27 Nearby Early-Type Galaxies, Duncan Forbes, Adebusola Alabi, Jean Brodie, Aaron Romanowsky, Jay Strader, Caroline Foster, Christopher Usher, Lee Spitler, Sabine Bellstedt, Nicola Pastorello, Alexa Villaume, Asher Wasserman, Vincenzo Pota

Faculty Publications

No abstract provided.

The Sluggs Survey: Revisiting The Correlation Between X-Ray Luminosity And Total Mass Of Massive Early-Type Galaxies, Duncan Forbes, Adebusola Alabi, Aaron Romanowsky, Dong-Woo Kim, Jean Brodie, Giuseppina Fabbiano

Faculty Publications

Here we utilize recent measures of galaxy total dynamical mass and X-ray gas luminosities (LX,Gas) for a sample of 29 massive early-type galaxies from the SLUGGS survey to probe LX, Gas–mass scaling relations. In particular, we investigate scalings with stellar mass, dynamical mass within 5 effective radii (Re) and total virial mass. We also compare these relations with predictions from Λ cold dark matter simulations. We find a strong linear relationship between LX, Gas and galaxy dynamical mass within 5Re, which is consistent with the recent cosmological simulations of Choi et al. that incorporate mechanical heating from AGN. We conclude …

Extensive Globular Cluster Systems Associated With Ultra Diffuse Galaxies In The Coma Cluster, Pieter Van Dokkum, Roberto Abraham, Aaron Romanowsky, Jean Brodie, Charlie Conroy, Shany Danieli, Deborah Lokhors, Allison Merritt, Lamiya Mowla, Jielai Zhang

Faculty Publications

We present Hubble Space Telescope (HST) imaging of two ultra diffuse galaxies (UDGs) with measured stellar velocity dispersions in the Coma cluster. The galaxies, Dragonfly 44 and DFX1, have effective radii of 4.7 kpc and 3.5 kpc and velocity dispersions of km s−1 and km s−1, respectively. Both galaxies are associated with a striking number of compact objects, tentatively identified as globular clusters: for Dragonfly 44 and for DFX1. The number of globular clusters is much higher than expected from the luminosities of the galaxies but is consistent with expectations from the empirical relation between dynamical mass and globular cluster …

Human-Centered Authentication Guidelines, Jeremiah Still, Ashley Cain, David Schuster

Faculty Publications

PurposeDespite the widespread use of authentication schemes and the rapid emergence of novel authentication schemes, a general set of domain-specific guidelines has not yet been developed. This paper aims to present and explain a list of human-centered guidelines for developing usable authentication schemes.Design/methodology/approachThe guidelines stem from research findings within the fields of psychology, human–computer interaction and information/computer science.FindingsInstead of viewing users as the inevitable weak point in the authentication process, this study proposes that authentication interfaces be designed to take advantage of users’ natural abilities. This approach requires that one understands how interactions with authentication interfaces can be improved and …

Translanguaging: Definitions, Implications, And Further Needs In Burgeoning Inquiry, Luis E. Poza

Faculty Publications

The term translanguaging has appeared with growing frequency in research about the education of linguistic minority students. Amid increasing application of the term, concern emerges regarding the consistency of its definitions and characterizations, specifically with respect to the term’s social justice implications, which risk dilution. Early instances (García, 2007, 2009a) position the term as both a pedagogical strategy for supporting multilingual learners and a critique of existing conceptualizations of language and bilingualism that have historically marginalized particular speech communities. In this review of recent literature, I analyze 53 texts published between 1996 and 2014 for their definitions, exemplifications, and attributed …

A Boundary-Based Measure For Gerrymandering, Carson Sprock

Master's Theses

This paper presents a new measure for quantifying legislative gerrymandering

based intuitive observation that in a non-gerrymandered district a randomly placed

observer should be able to walk in a straight line and only cross the boundary of the

district once, when the district is exited. We make this notion precise in terms of

the expected value of such crossings. The result is the Boundary Intersection

Number, or BIN. Properties of the BIN score are proven and its computational

properties discussed.

Doppler Lidar Measurements Of Boundary Layer Heights Over San Jose, California, Matthew Robert Lloyd

Master's Theses

There is a need for understanding boundary layer depth and climatology over the urban area of San Jose, California. In this paper, Doppler LiDAR data are observed from San Jose. The adopted methods of vertical velocity variance and skewness are used to determine the estimated height of the convective boundary layer and to analyze sources of turbulence. The use of these methods helped identify a few types of the boundary layer that are common in San Jose. Also examined in this paper is a brief climatology of the mean maximum convective boundary layer height in San Jose over the period …

Simulated Annealing-Based Optimal Proportional-Integral-Derivative (Pid) Controller Design: A Case Study On Nonlinear Quadcopter Dynamics, Kristofer Kevin Nemirsky

Master's Theses

In this thesis, the history and evolution of rotor aircraft with simulated annealing-based PID application were reviewed and quadcopter dynamics are presented. The dynamics of a quadcopter were then modeled, analyzed, and linearized. A cascaded loop architecture with PID controllers was used to stabilize the plant dynamics, which was improved upon through the application of simulated annealing (SA). A Simulink model was developed to test the controllers and verify the functionality of the proposed control system design. In addition, the data that the Simulink model provided were compared with flight data to present the validity of derived dynamics as a …

A Method For Detection Of Local Dimension In Point Cloud Data, Catherine Boersma

Master's Theses

We have invented a method that uses the mathematical idea of local homology to calculate the local dimension (one-dimensional, two-dimensional, mixed dimension of varying types) of an underlying object in two-dimensional space from a point cloud approximation.

Motivated by the need to find an efficient method for computing local homology, we define a new mathematical object -- the Local Complex, and some variations of this idea -- that we show to be exactly related to the Vietoris-Rips complex under some settings. This concept captures the essence of the local homology of point cloud data at any scale. We provide a …

A Complete Study Of N,N’ Bis(1 Phenylpropyl) 2,6 Pyridinedicarboxamide, Victoria Y. Chang

Master's Theses

Biological systems are often chiral or involve chiral compounds, e.g. L amino acids, the neurotransmitter L epinephrine. In some cases, two enantiomers of a chiral drug will have different activities, and in extreme cases, one form is therapeutic while the other form is toxic. Therefore, the development of reliable molecular probes for biological applications and chiral sensing is an important area of study. The unique spectroscopic and coordination properties of some lanthanide ions (Ln3+) and their complexes make them suitable for use as molecular probes. Chiral ligand systems have been developed that can coordinate with lanthanide ions to form complexes …

Knight's Tours And Zeta Functions, Alfred James Brown

Master's Theses

Given an m × n chessboard, we get an associated graph by letting each square represent a vertex and by joining two vertices if there is a valid move by a knight between the corresponding squares. A knight’s tour is a sequence of moves in which the knight lands on every square exactly once, i.e., a Hamiltonian path on the associated graph. Knight’s tours have an interesting history. One interesting mistake regarding Knight’s Tours was made by the famous mathematician Euler. His mistake led to the further study of knight’s tours on 3 × n chessboards. We will explore and …

Literature Growth And Development Of “Earthworm”: A Bibliometric Analysis, A. Vanitha, M. Mani, Dr. A. Thirumagal

Library Philosophy and Practice (e-journal)

An earthworm is a soil living organism and seems in soil. It helps to make the soil more nutritious and used as an organic fertilizer. So earthworms are called as best partner for the soil and the farmer. This research is concentrated on earthworm analysis. The records are collected from web of science database for the period of 2007 - 2016. Total number of publications collected for this study was 3939. Composting with worms is called as vermicomposting. It is a good way to dispose all organic wastes, such as vegetable and fruit peelings. By the vermicomposting, the wastes are …

Electronic Journal Of Knowledge Management: A Bibliometric Analysis, Jyotshna Sahoo, Ghanashyam Meher, Basudev Mohanty

Library Philosophy and Practice (e-journal)

The Electronic Journal of Knowledge Management (EJKM) is an online open access peer-reviewed journal that publishes articles with regard to the development of both theory and practice in the field of Knowledge Management. The present paper examines the articles published in EJKM during the period from 2003-13 for identifying the publication output, authorship pattern, degree of collaboration, most prolific contributors, geographical distribution of papers, referencing pattern, self citation pattern and several other characteristics. The results of this study reveal that that the year 2009 is the most productive year, research papers are given more importance than other categories of publications. …

Digital Literacy Skills Of Undergraduate Students In Nigeria Universities, Azeez Adebamgbola Adeoye, Basirat Jumoke Adeoye

Library Philosophy and Practice (e-journal)

Influence of digital technology in our educational system cannot be overemphasized. Hardly can any undergraduate student survive in tertiary institution without basic skills and knowledge of digital technology. The composite skills require for student to fit into digital environment in achieving his/her academic pursuit is digital literacy skill. This prompted the study on the digital literacy skills of undergraduate students of Federal Universities in Southwest, Nigeria.

Research design employed for this study was the descriptive survey design. The population for this study was 60,997 undergraduate students of Obafemi Awolowo University, University of Ibadan and University of Lagos. However, multiple stage …

Pathway To Inclusive Community Children Reading Program For Sustainable Development: Summer Reading Experience In Anambra State, Nigeria, Ngozi P. Osuchukwu Mrs, Ifeyinwa N. Okonkwo Mrs, Adaora C. Obuezie Mrs, Nkechi S. Udeze Ms

Library Philosophy and Practice (e-journal)

Reading is an important aspect of literacy that improves academic performance in children as well as widens horizon. Hence, extending reading activities to rural communities enhances social inclusion and bridges the gap of service delivery between the children in the urban areas and the underserved communities. The essence of the summer reading program is to integrate literacy skills in children and build a community of children with love for reading. It underpins the relevant theme of sustainable development goals (SDGs) where no one should be left behind. The study highlighted the activities, resources, targets, lessons learnt and challenges of extending …

Citation Network Analysis Of Science Doctoral Theses In The Faculty Of Science, University Of Ibadan, Malik Oyewale Salami Mr, Wole Michael Olatokun Prof.

Library Philosophy and Practice (e-journal)

Objective - This paper investigated the intellectual structure of the cited journals by science doctoral students in the University of Ibadan, Nigeria through field-mapping mechanism namely co-citation analysis. The study also explored the relationship and its strength between the science disciplines in terms of journals that were co-referenced through bibliographic coupling analysis. The deployment of bibliographic coupling techniques with co-citation analysis was adopted to model the pattern of scientific communications among scientists and scholarly journals.

Methods - The scholarly citation data were collected from science doctoral theses submitted between 2006 and 2013 across ten disciplines in the Faculty of Science, …

The Effects Of Repeated Global Self-Adapted Testing On Online Statistics Performance, Gita Sierra Hodell

Master's Theses

The purpose of this study was to evaluate the effectiveness of a computerized academic testing format. Centered on the motivating and stress-reducing aspects of personal control, a modified form of global self-adapted testing (GSAT) was explored to help students who are challenged by test anxiety or low academic motivation. Forty-two students completed multiple GSATs throughout one semester of college-level, online statistics. Of those students, 20 volunteered to complete an academic motivation questionnaire at the beginning of the semester. The relationships between scores on the motivation questionnaire, GSAT use characteristics, and statistics performance were analyzed. Students who used the GSATs correctly …

Real-Time Online Chinese Character Recognition, Wenlong Zhang

Master's Projects

In this project, I built a web application for handwritten Chinese characters recognition in real time. This system determines a Chinese character while a user is drawing/writing it. The techniques and steps I use to build the recognition system include data preparation, preprocessing, features extraction, and classification. To increase the accuracy, two different types of neural networks ared used in the system: a multi-layer neural network and a convolutional neural network.

Cryptanalysis Of Homophonic Substitution Cipher Using Hidden Markov Models, Guannan Zhong

Master's Projects

We investigate the effectiveness of a Hidden Markov Model (HMM) with random restarts as a mean of breaking a homophonic substitution cipher. Based on extensive experiments, we find that such an HMM-based attack outperforms a previously de- veloped nested hill climb approach, particularly when the ciphertext message is short. We then consider a combination cipher, consisting of a homophonic substitution and a column transposition. We develop and analyze an attack on such a cipher. This attack employs an HMM (with random restarts), together with a hill climb to recover the column permutation. We show that this attack can succeed on …

Handling Relationships In A Wiki System, Yashi Kamboj

Master's Projects

Wiki software enables users to manage content on the web, and create or edit web pages freely. Most wiki systems support the creation of hyperlinks on pages and have a simple text syntax for page formatting. A common, more advanced feature is to allow pages to be grouped together as categories. Currently, wiki systems support categorization of pages in a very traditional way by specifying whether a wiki page belongs to a category or not. Categorization represents unary relationship and is not sufficient to represent n-ary relationships, those involving links between multiple wiki pages.

In this project, we extend Yioop, …

Deep Data Analysis On The Web, Xuanyu Liu

Master's Projects

Search engines are well known to people all over the world. People prefer to use keywords searching to open websites or retrieve information rather than type typical URLs. Therefore, collecting finite sequences of keywords that represent important concepts within a set of authors is important, in other words, we need knowledge mining. We use a simplicial concept method to speed up concept mining. Previous CS 298 project has studied this approach under Dr. Lin. This method is very fast, for example, to mine the concept, FP-growth takes 876 seconds from a database with 1257 columns 65k rows, simplicial complex only …