Digital Commons Network^™

The Importance Of Solvent Effects On The Mechanism Of The Pfeiffer Effect, Jamie Lunkley, Ngoc Nguyen, Kristina Tuminaro, Dana Margittai, Gilles Muller

Faculty Publications, Chemistry

The Pfeiffer effect is observed when an optically active compound such as an amino acid is introduced to a solution containing a labile racemic metal complex, and an equilibrium shift is obtained. The “perturbation” results in an excess of one enantiomer over the other. The shift is a result of a preferential outer sphere interaction between the introduced chiral species and one enantiomeric form (Λ or ∆) of a labile metal complex. Speculations regarding the mechanism of the Pfeiffer effect have attributed observations to a singular factor such as pH, solvent polarity, or numerous other intermolecular interactions. Through the use …

The Sluggs Survey: The Inner Dark Matter Density Slope Of The Massive Elliptical Galaxy Ngc 1407, Asher Wasserman, Aaron Romanowsky, Jean Brodie, Pieter Van Dokkum, Charlie Conroy, Alexa Villaume, Duncan Forbes, Jay Strader, Adebusola Alabi, Sabine Bellstedt

Faculty Publications

We investigate the dark matter density profile of the massive elliptical galaxy, NGC 1407, by constructing spherically symmetric Jeans models of its field star and globular cluster systems. Two major challenges in such models are the degeneracy between the stellar mass and the dark matter halo profiles, and the degeneracy between the orbital anisotropy of the tracer population and the total mass causing the observed motions. We address the first issue by using new measurements of the mass-to-light ratio profile from stellar population constraints that include a radially varying initial mass function. To mitigate the mass–anisotropy degeneracy, we make use …

Online Information Seeking Behaviour Of Faculty And Research Scholars On E-Resources Of Babasaheb Bhimrao Ambedkar University, Lucknow, India, Ashwani Kumar

Library Philosophy and Practice (e-journal)

The purpose of this study was to investigate the factors affect the optimum use and utilization of various e-resources by faculty and research scholars at Babasaheb Bhimrao Ambedkar University (A Central University), Lucknow, UP. The study mainly focused on the preferred information sources and methods to access electronic information. The study describes in brief, the e-resources, and their types, etc. The objectives, scope and research methodology of the study are clearly expanded. For this purpose, the researchers prepared a well-structured questionnaire as a tool for data collection and the same responses were subjected to mathematical and statistical analysis.

A Deficit Of Dark Matter From Jeans Modeling Of The Ultra-Diffuse Galaxy Ngc 1052-Df2, Asher Wasserman, Aaron Romanowsky, Jean Brodie, Pieter Van Dokkum, Charlie Conroy, Roberto Abraham, Yotam Cohen, Shany Danieli

Faculty Publications

The discovery of the ultra-diffuse galaxy NGC 1052-DF2 and its peculiar population of star clusters has raised new questions about the connections between galaxies and dark matter (DM) halos at the extremes of galaxy formation. In light of debates over the measured velocity dispersion of its star clusters and the associated mass estimate, we constrain mass models of DF2 using its observed kinematics with a range of priors on the halo mass. Models in which the galaxy obeys a standard stellar-halo mass relation are in tension with the data and also require a large central density core. Better fits are …

Authorship Pattern And Collaborative Research In The Field Of Ebola (1995 – 2014): A Bibliometric Analysis, Kotti Thavamani

Library Philosophy and Practice (e-journal)

This paper presents a bibliometric analysis of the authorship pattern in the field of Ebola covered in the bibliographic database namely MEDLINE which covered in Pubmed for the period 1995-2014. MEDLINE covered the maximum of 2519 records during the study period i.e. 1995 to 2014. More than 52.75% of the total contributions represent collaborative research. The degree of collaboration has been arrived at 0.55.The value of Co-Authorship Index (CAI) for single author paper shows that the single author papers during first three blocks i.e. 1995-1999, 2000-2004 and 2005-2009 were below 100 which started increasing in the fourth block and the …

The Multimodal Interactional Work Of Having Wonderful Ideas, Benedikt Harrer

Faculty Publications

Learning physics is socially organized through interactions with peers and more competent others. Instructors' and peers' assessment of and responsiveness to learners' ideas in the moment is critical for the collaborative construction of knowledge in physics. However, we still know little about how instructors and learners negotiate the value and productiveness of ideas. While to an outsider, some of the ideas physics learners discuss do not seem immediately valuable or productive for the problem being solved, Duckworth encourages us to pursue an 'insider's view' on how a learner experiences their ideas. Building on Duckworth, I pursue an 'insider's view' to …

Fluctuating Hydrodynamics Of Reactive Liquid Mixtures, Changho Kim, Andy. Nonaka, John Bell, Alejandro Garcia, Aleksandar Donev

Faculty Publications

Fluctuating hydrodynamics (FHD) provides a framework for modeling microscopic fluctuations in a manner consistent with statistical mechanics and nonequilibrium thermodynamics. This paper presents an FHD formulation for isothermal reactive incompressible liquid mixtures with stochastic chemistry. Fluctuating multispecies mass diffusion is formulated using a Maxwell–Stefan description without assuming a dilute solution, and momentum dynamics is described by a stochastic Navier–Stokes equation for the fluid velocity. We consider a thermodynamically consistent generalization for the law of mass action for non-dilute mixtures and use it in the chemical master equation (CME) to model reactions as a Poisson process. The FHD approach provides remarkable …

Towards A Smart World: Hazard Levels For Monitoring Of Autonomous Vehicles’ Swarms, Francesca M. Favaro, Shivangi Agarwal, Nazanin Nader, Sumaid Mahmood

Mineta Transportation Institute

This work explores the creation of quantifiable indices to monitor the safe operations and movement of families of autonomous vehicles (AV) in restricted highway-like environments. Specifically, this work will explore the creation of ad-hoc rules for monitoring lateral and longitudinal movement of multiple AVs based on behavior that mimics swarm and flock movement (or particle swarm motion). This exploratory work is sponsored by the Emerging Leader Seed grant program of the Mineta Transportation Institute and aims at investigating feasibility of adaptation of particle swarm motion to control families of autonomous vehicles. Specifically, it explores how particle swarm approaches can be …

Erratum: The Sluggs Survey: A Comparison Of Total-Mass Profiles Of Early-Type Galaxies From Observations And Cosmological Simulations, To ∼4 Effective Radii, Sabine Bellstedt, Duncan Forbes, Aaron Romanowsky, Rhea-Silvia Remus, Adam Stevens, Jean Brodie, Adriano Poci, Richard Mcdermid, Adebusola Alabi, Leonie Chevalier, Caitlin Adams, Anna Ferré-Mateu, Asher Wasserman, Viraj Pandya

Faculty Publications

This is an erratum to the paper “The SLUGGS Survey: A comparison of total-mass profiles of early-type galaxies from observations and cosmological simulations, to ∼4 effective radii” that was published in 2018, MNRAS, 476, 4543, which we refer to as the original paper.

Externalizing The Core Principles Of The Departmental Action Team (Dat) Model, Joel Corbo, Gina Quan, Karen Falkenberg, Christopher Geanious, Courtney Ngai, Mary Pilgrim, Daniel Reinholz, Sarah Wise

Faculty Publications

Departmental Action Teams (DATs) are departmentally-based working groups of faculty, students, and staffaimed at achieving sustained departmental change related to undergraduate education. DATs have been conceptualized and are facilitated by members of our project team based on a set of Core Principles. These principles serve both as guides in the design of DATs and targets for the kinds of culture we aspire to create through our facilitation. In this paper, we describe our Core Principles, including theoretical underpinnings and a brief implementation example for each. We argue that articulating principles is a critical component of externalizing acomplex change effort and …

Research On University Faculty Member's Reasoning About How Departments Change, Gina Quan, Joel Corbo, Courtney Ngai, Daniel Reinholz, Mary Pilgrim

Faculty Publications

Research on institutional change says that effective change agents are able to flexibly reason with multiple models for change, depending on their local context and their goals. However, little is known about what it looks like for individuals to draw on and reason with different change models in-the-moment. Within interviews, we invited STEM faculty to discuss specific changes in their department and the process of change in general. This work is part of an ongoing study to understand how to support departmental change through Departmental Action Teams (DATs).  Our preliminary analyses suggest that faculty's ideas about change are highly varied …

Pondering Zeros: Uncovering Hidden Inequities Within A Decade Of Grades, Cassandra Paul

Faculty Publications

When assessing student work, graders will often find that some students will leave one or more problems blank on assessments. Since there is no work shown, the grader has no means to evaluate the student's understanding of a particular problem, and thus awards zero points. This practice punishes the student behavior of leaving a problem blank, but this zero is not necessarily an accurate assessment of student understanding of a particular topic. While some might argue that this grading practice is "fair" in that students know that they can't receive points for answers they don't submit, we share evidence that …

On The Strong Chromatic Index Of Sparse Graphs, Philip Deorsey, Jennifer Diemunsch, Michael Ferrara, Nathan Graber, Stephen Hartke, Sogol Jahanbekam, Bernard Lidicky, Luke Nelsen, Derrick Stolee, Eric Sullivan

Faculty Publications

The strong chromatic index of a graph G, denoted χ′s(G), is the least number of colors needed to edge-color G so that edges at distance at most two receive distinct colors. The strong list chromatic index, denoted χ′s,ℓ(G), is the least integer k such that if arbitrary lists of size k are assigned to each edge then G can be edge-colored from those lists where edges at distance at most two receive distinct colors.We use the discharging method, the Combinatorial Nullstellensatz, and computation to show that if G is a subcubic planar graph with girth(G)≥41 then χ′s,ℓ(G)≤5, answering a question …

Dialetheism, Paradox, And Nāgārjuna’S Way Of Thinking, Richard H. Jones

Comparative Philosophy

Nāgārjuna’s doctrine of emptiness, his ideas on “two truths” and language, and his general method of arguing are presented clearly by him and can be stated without paradox. That the dialetheists today can restate his beliefs in paradoxical ways does not mean that Nāgārjuna argued that way; in fact, their restatements misrepresent and undercut his arguments.

Surf: Understanding And Predicting Urban Convection And Haze, X. Liang, S. Miao, J. Li, R. Bornstein, X. Zhang, Y. Gao, F. Chen, X. Cao, Z. Cheng, Craig Clements, W. Dabberdt, A. Ding, D. Ding, J. J. Dou, J.X. Dou, Y. Dou, C.S.B. Grimmond, J. E. González-Cruz, J. He, M. Huang, X. Huang, S. Ju, Q. Li, D. Niyogi, J. Quan, J. Sun, J.Z. Sun, M. Yu, J. Zhang, Y. Zhang, X. Zhao, Z. Zheng, M. Zhou

Faculty Publications, Meteorology and Climate Science

Urbanization modifies atmospheric energy and moisture balances, forming distinct features [e.g., urban heat islands (UHIs) and enhanced or decreased precipitation]. These produce significant challenges to science and society, including rapid and intense flooding, heat waves strengthened by UHIs, and air pollutant haze. The Study of Urban Impacts on Rainfall and Fog/Haze (SURF) has brought together international expertise on observations and modeling, meteorology and atmospheric chemistry, and research and operational forecasting. The SURF overall science objective is a better understanding of urban, terrain, convection, and aerosol interactions for improved forecast accuracy. Specific objectives include a) promoting cooperative international research to improve …

Using Satellite-Derived Pm2.5 Dataset To Assist Air Pollution Management In California, Minghui Diao, Frank Freedman, Sen Chiao, Ana Rivera

Faculty Publications, Meteorology and Climate Science

No abstract provided.

Use Of Online Public Access Catalogue [Opac] At Sadakathullah Appa College, Tirunelveli District, Tamil Nadu: A Study, Dr. A.Thirumagal, M. Mani, Dr. R.R.Saravanakumar

Library Philosophy and Practice (e-journal)

OPAC is an imperative device in the libraries to offer a moral support of the clients. Electronic Information access and recovery in numerous ways should be possible utilizing the OPAC administrations. The present study explores the Use of Online Public Access Catalogue (OPAC) at Sadakathullah Appa College (SAC) Tirunelveli District, Tamil Nadu. This paper discusses various aspects of OPAC use such as frequency use, and satisfaction regarding use of OPAC etc.,

A 3.5 Million Solar Masses Black Hole In The Centre Of The Ultracompact Dwarf Galaxy Fornax Ucd3, Anton Afanasiev, Igor Chilingarian, Steffen Mieske, Karina Voggel, Arianna Picotti, Michael Hilker, Anil Seth, Nadine Neumayer, Matthias Frank, Aaron Romanowsky, George Hau, Holger Baumgardt, Christopher Ahn, Jay Strader, Mark Den Brok, Richard Mcdermid, Lee Spitler, Jean Brodie, Jonelle Walsh

Faculty Publications

The origin of ultracompact dwarfs (UCDs), a class of compact stellar systems discovered two decades ago, still remains a matter of debate. Recent discoveries of central supermassive black holes in UCDs likely inherited from their massive progenitor galaxies provide support for the tidal stripping hypothesis. At the same time, on statistical grounds, some massive UCDs might be representatives of the high luminosity tail of the globular cluster luminosity function. Here we present a detection of a 3.3+1.4−1.2×106M⊙ black hole (1σ uncertainty) in the centre of the UCD3 galaxy in the Fornax cluster, which corresponds to 4 per cent of its …

Assessing Subject Areas Of Worldwide Information Literacy Research And Practice: A Discipline Co-Occurrence Network Analysis Approach, Punit Kumar Singh, Prof. Ajay P. Singh

Library Philosophy and Practice (e-journal)

IL is important due to its potentiality to optimize the use of available information and to transform the novice into self-directed lifelong learners. It has gained ground and much attention in every field of knowledge which is assured by rapid increase in related literature. Since, the IL skills require subject-oriented approach not only to develop standard, guide, framework, tools, etc. but also to evaluate, assess, and impact of IL skills. Thus, measuring of the subject areas of IL publications and it co-occurrence is imperative and the objective of the present study. Based on data from Scopus database, network visualization technique …

Bibliometirc Analysis Of Sickle Cell Anaemia Literature On Nigeria Listed In Pubmed Between 2006 And 2016, Omolayo A. Adesina Ms., Adeola O. Opesade Dr

Library Philosophy and Practice (e-journal)

This paper analysed Sickle cell anaemia literature on Nigeria listed in PubMed to understand the research performance of medical researchers on sickle cell anaemia literature on Nigeria. Data covering the period of 2006-2016 were collected from the PubMed, a citation database developed by the National Centre for Biotechnology Information (NCBI).The search strategy used was ((sickle cell anaemia) OR (sickle cell anemia)) AND Nigeria AND (("2006/01/01"[PDat] : "2016/12/31"[PDat])), bearing in mind variance in spelling (anaemia and anemia), which retrieved 326 sickle cell literature on Nigeria between 2006 and 2016. Article productivity increased between 2006 and 2010. However, there was a drastic …

Changes In Attitudes Revealed Through Students’ Writing About Mathematics, Wes Maciejewski

Faculty Research, Scholarly, and Creative Activity

The ways in which a student relates to mathematics is known to affect how they learn and perform in mathematics: anxiety may be compensated with avoidance; enjoyment with engagement. Therefore, there is a need to understand students’ relationships with mathematics and to see how these are affected by mathematics education. This paper presents results from the early stages of a mixed-methods study aimed at assessing changes in students’ attitudes towards mathematics as revealed in their writings about mathematics. In contrast to existing survey instruments on attitudes towards mathematics, the methods and discussion presented here have the potential to inform the …

A Building Permit System For Smart Cities: A Cloud-Based Framework, Magdalini Eirinaki, Subhankar Dhar, Shishir Mathur, Adwait Kaley, Arpit Patel, Akshar Joshi, Dhvani Shah

Faculty Publications

In this paper we propose a novel, cloud-based framework to support citizens and city officials in the building permit process. The proposed framework is efficient, user-friendly, and transparent with a quick turn-around time for homeowners. Compared to existing permit systems, the proposed smart city permit framework provides a pre-permitting decision workflow, and incorporates a data analytics and mining module that enables the continuous improvement of both the end user experience and the permitting and urban planning processes. This is enabled through a data mining-powered permit recommendation engine as well as a data analytics process that allow a gleaning of key …

Research Productivity Of All India Institute Of Medical Sciences (Aiims): A Scientometric Analysis, Jeyshankar -. Ramalingam -, Nishavathi E

Library Philosophy and Practice (e-journal)

This study evidences the growth of research literature produced by AIIMS (All India Institute of Medical Sciences) for the period of 2007 to 2016. A total of 14410 records were retrieved from the Scopus database. Descriptive statistics for the research publication output revealed mean = 1441, Sd = 318.92, minimum = 1087, maximum = 2141 at 95.0% confidence level. The curve fitting methodology was used to fit the growth of research publication of AIIMS. R square value for exponential growth model is higher (0.908) than the linear growth model (0.849). Journals are identified as most preferred publication pattern (69.42%). The …

Multiple Intelligence Skills Among Library And Information Science Professionals Of Government And Private Universities In Tamil Nadu, India: An Exploratory Study, Jeyshankar -. Ramalingam -

Library Philosophy and Practice (e-journal)

The study analyse the multiple intelligence skills of LIS professionals in working government and private universities in Tamil Nadu. Data were collected through questionnaire method. Totally 441 questionnaire were collected from 114 in traditional, 291 in Professional and 36 in Multi-discipline subjects. The study reveals that the private universities LIS professionals are more compare than government universities. The respondents from Government Universities are better skilled than their counterparts from private universities in all the 17 linguistic intelligence skills. Both government and private ranked first in the statement better stock verification. It is also clearly understand the respondents of Government universities …

An Evaluative Study On Course And Curriculum Structure Of Library And Information Science In Vidyasagar University, West Bengal, India, Sanjoy Kar, Jayanta Bhakta, Trishna Bhui

Library Philosophy and Practice (e-journal)

The objectives of the LIS courses are to provide a real-life exposure to the students through up-to-date training and practical exercises. Besides, the course curricula should have orientations towards an understanding of basic foundations of the integrated theory. The balanced coverage of both theoretical and practical aspects will enable the students and trainees for professional work and the same will upgrade their level of knowledge to contemplate on the new frontiers of librarianship. As this subject is highly empirical in nature, therefore, incessant encounter with the happenings of the real field is of prime importance. The university offers postgraduate courses, …

Induction Programs, Teacher Efficacy, And Inquiry Practices In Novice Teachers, Anisha Munshi

Dissertations

Induction Programs, Teacher Efficacy, and Inquiry Practices in Novice Teachers

This purpose of this study was to identify the influence of Induction Programs on first-year

teachers. Research shows that a large percentage of novice teachers leave the profession within the first five years. Novice teachers often begin the first year of teaching with a limited understanding of challenges that are faced daily by teachers in classrooms. While teacher training programs provide ideas of how teachers can plan effective lessons and manage classroom time effectively, it is often through daily experiences that novice teachers can truly understand the gamut of challenges …

Building Teacher Self-Efficacy Through Administrator Feedback, Limary Trujillo Gutierrez

Dissertations

The study explored current site principals’ feedback practices that support or hinder teachers’ implementation of feedback, and identified site principal’s practices that encourage or interfere with teacher’s self-efficacy. Using qualitative interviews with site principals and teachers from two different districts and three different school sites, the study analyzed two major leadership practices: (a) an administrator’s ability to communicate effectively with teachers before, during, and after the feedback process, and (b) an administrator’s use of emotional intelligence when providing feedback. Data were separated into four feedback types (positive feedback, negative feedback, feedback and feedforward) and emotional intelligence traits (self-regulation, self-aware, empathy, …

Examining The Efficacy Of Inclusive Practices And Its Impact On The Academic Achievement Of High School Students With Mild To Moderate Disabilities, Paulette C. Cobb

Dissertations

There is extensive research in elementary education on effective practices that support academic success for students with mild to moderate disabilities in general education; however there is a dearth of research on high school inclusion practices. A survey examined the current inclusionary practices at a Central Coast High School. California State Standardized Assessment scores of 11th grade English Language Art and Math classes were also analyzed by groups. Overall, findings indicated that inclusionary practices were implemented to different degrees, but none were fully in place i.e., practices building relationships was rated the highest and instructional practices was rated lowest. In …

Relational Trust Within An Urban Public Comprehensive High School District In Northern California, Shawn Tennenbaum

Dissertations

The 2013 adoption of the Local Control Funding Formula and Local Control Accountability Plan provides local communities and districts with educational decision-making and provides a roadmap of how to improve outcomes in low-performing districts. One of the eight-priority areas California public school districts are held accountable to make progress on an annual basis is improving school climate. Building strong trust based relationships prepares schools to address a myriad of complex challenges. This dissertation examined the key facets that build relational trust between high school teachers and principals within a hierarchical role relationship in a public comprehensive high school district in …

Hydraulic Sheet Resistance In Paper­-Based Porous Media, Stefan Myles Doser

Master's Theses

This work investigates the special case of in­-plane fluid flow of a Newtonian incompressible fluid across a thin paper-­based porous medium at very low Reynolds numbers (Re ≪ 1). Fluid transport with these characteristics is used in emerging devices such as microscale paper­based analytical devices (μPADs). The mathematical similarity between Darcy’s law and Ohm’s law is considered, and hydraulic equivalents of current, voltage and resistance are determined to propose hydraulic sheet resistance. Darcy flow is predicted under these conditions and tested by experiment at two flow rates of 5 μL/min and 10 μL/min. A device was designed and fabricated to …