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The Ideational Meaning Of Diagrams In The Malaysian And Singaporean Mathematics Textbooks, Sarveswary Velayutham

The Mathematics Enthusiast

A mathematical text is multimodal with different modes of communication, namely verbal language, algebraic notation, visual forms and gestures. This paper aims to compare and discuss the ideational meaning of visual forms in worked examples from Malaysian and Singaporean Grade Seven Mathematics textbooks on Lines and Angles. There are two structures in ideational meaning, namely narrative (with action) and conceptual (without action). Action diagrams represent ongoing mathematical activity whereas, without action diagrams represent mathematical objects. Document analysis and coding were carried on 57 geometrical diagrams found in the textbooks used in a 20-year period. The properties to identify a narratively …

Pre-University Students' Perceptual Flexibility With Mathematical Elements, Chee Soon Low, Cheng Meng Chew

The Mathematics Enthusiast

Do students see things the same as what mathematics teachers have anticipated? In a light-hearted and inquisitive mode, two fundamental mathematical tasks were administered to 147 pre-university students who newly joined a private college for enrolment into various programs. One task simply required the participants to state the variables in a linear equation and the other attempted to elicit what the participants would naturally perceive from a diagram featuring a straight line crossing the coordinate axes. This study aimed to examine the participants’ perceptual flexibility with mathematical elements without explicit hints. The emergent textual responses were qualitatively classified and the …

A Tribute To The Late Professor Lim Chap Sam, Liew Kee Kor, Munirah Ghazali, Cheng Meng Chew, Guat Poh Betsy Lee

The Mathematics Enthusiast

No abstract provided.

Ecosystem Health In Guánica Bay And La Parguera, Puerto Rico: Remote Sensing Of Ocean Color And Metal Analysis Of Coral Tissue And Surficial Sediments, Jahnelle Howe

Dissertations and Theses

Guánica Bay is an estuary located in southwest Puerto Rico, with a coral reef ecosystem at its periphery. This ecosystem is affected by sediments, nutrients, and contaminants from the watershed through the Bay and into the offshore water. This project evaluates Guánica Bay and La Parguera coastal areas through remote sensing and chemical analysis to assess coastal ecosystem health. The concentration of metals in two coral species and their associated surface sediments was were analyzed by X-ray fluorescence (XRF) and Direct Mercury Analyzer (DMA- 80). Ocean color remote sensing was used to estimate nutrient inputs and phytoplankton biomass through chlorophyll- …

The Anesthesia Continuing Education Market And The Value Creation From A Sustainable Unified Platform, Jefferson Souza

MUSC Theses and Dissertations

Practicing anesthesia professionals in the United States are all governed by various profession-specific regulatory bodies that mandate continuing education (CE) requirements. To date, no unified resource exists for anesthesia professionals (i.e., Anesthesiologists, Certified Registered Nurse Anesthetists, and Anesthesiologist Assistants) to explore the CE offerings available within the marketplace. This study endeavored to convey the potential value of a unified anesthesia CE resource. It investigated how to cultivate a sustainable platform to potentially improve how anesthesia professionals search available CE offerings and to potentially enhance how anesthesia CE providers reach anesthesia professionals. This qualitative study was conducted utilizing an integrative review …

Gc-Ms Analysis Of Synthesized Biodiesel, Courtney R. Whetstine

Forensic Science Master's Projects

Biodiesel is an alternative energy resource that can replenish depleting natural petroleum storage. Synthesis of biodiesel is cost-efficient as it can be chemically converted from renewable wastes, such as vegetable oil or animal fat. These fuels are also biodegradable and the exhaust emissions from biodiesel are non-toxic and environmentally-friendly. Biodiesel is a stable fuel that performs reliably in all diesel engines. Biodiesel is also easy to synthesize, safe to handle, and works with diesel fuel storage and pumping systems. The United States has an abundance of vegetable oils that have not been widely used to our advantage. Additionally, fast-food restaurants …

Her Voice: Engaging And Preparing Girls With Disabilities For Science, Technology, Engineering, And Math Careers, Amy Jane Griffiths, Angel Miles Nash, Zachary Maupin, Sneha Kohli Mathur

Education Faculty Articles and Research

Science, technology, engineering, and math (STEM) related fields comprise the top 30 occupations expected to grow the fastest by 2026. This increase in job opportunities, coupled with the evolution of technology, is creating higher demands for diversity in the labor market. Currently all students require innovative training and support from a young age to pursue STEM careers successfully. However, women and girls with disabilities face unique barriers along the STEM education pipeline. In this paper, we report the current and projected labor market trends in the United States. We then consider how this labor market information can be used by …

Psychometric Analysis Of Forensic Examiner Behavior, Amanda Luby, A. Mazumder, B. Junker

Mathematics & Statistics Faculty Works

Forensic science often involves the comparison of crime-scene evidence to a known-source sample to determine if the evidence and the reference sample came from the same source. Even as forensic analysis tools become increasingly objective and automated, final source identifications are often left to individual examiners’ interpretation of the evidence. Each source identification relies on judgements about the features and quality of the crime-scene evidence that may vary from one examiner to the next. The current approach to characterizing uncertainty in examiners’ decision-making has largely centered around the calculation of error rates aggregated across examiners and identification tasks, without taking …

Cycle Stochastic Graphs: Structural And Forbidden Graph Characterizations, S. B. Rao, U. K. Sahoo, V. Parameswaran

Journal Articles

A vertex (respectively, edge) cycle stochastic function of a graph G is a labeling of vertices (respectively, edges) by a non-negative real valued function (Formula presented.) (respectively, (Formula presented.)) such that for every cycle of G, the sum of labels of its vertices (respectively, edges) is 1. The graphs where we can define such a function are called vertex cycle stochastic graphs (respectively, edge cycle stochastic graphs). In this paper, we provide a structure theorem for biconnected cycle stochastic graphs, which is extended to characterize edge cycle stochastic graphs. We also find a minimal forbidden graph characterization for biconnected vertex …

Bv-Operators And The Secondary Hochschild Complex, Mamta Balodi, Abhishek Banerjee, Anita Naolekar

Journal Articles

We introduce the notion of a BV-operator Δ = {Δn: V n →Vn-1}n≥0on a homotopy G-algebra V˙such that the Gerstenhaber bracket on H(V˙) is determined by Δ in a manner similar to the BV-formalism. As an application, we produce a BV-operator on the cochain complex defining the secondary Hochschild cohomology of a symmetric algebra A over a commutative algebra B. In this case, we also show that the operator Δ˙corresponds to Connes' operator.

Hom-Lie Algebras And Hom-Lie Groups, Integration And Differentiation, Jun Jiang, Satyendra Kumar Mishra, Yunhe Sheng

Journal Articles

In this paper, we introduce the notion of a (regular) Hom-Lie group. We associate a Hom-Lie algebra to a Hom-Lie group and show that every regular Hom-Lie algebra is integrable. Then, we define a Hom-exponential (Hexp) map from the Hom-Lie algebra of a Hom-Lie group to the Hom-Lie group and discuss the universality of this Hexp map. We also describe a Hom-Lie group action on a smooth manifold. Subsequently, we give the notion of an adjoint representation of a Hom-Lie group on its Hom-Lie algebra. At last, we integrate the Hom-Lie algebra (gl(V ), [·, ·], Ad), and the derivation …

Evaluation Of Institutional Research Productivity, Jiban K. Pal, Soumitra Sarkar

Journal Articles

The quantification of scholarly performance has become an obvious necessity in many academic pursuits. Evaluation of research output is therefore an integral element of R&D institutions worldwide. However the quality-weighted dimensions of quantity are gaining momentum. Consequently, a good number of evaluative studies on publication productivity have been made available in scientometric literature. This paper critically scrutinises the literature on research productivity concerning scientific institutions (include universities and departments) in an informational context. It provides a thorough review to map the quantum of knowledge relating to ‘institutional research productivity’ correlating the Indian vista. It is, however, indicative to find the …

Exponential Type Duality For Η-Approximated Variational Problems, Shalini Jha, Prasun Das, Tadeusz Antczak

Journal Articles

In this article, we use the so-called η-approximation method for solving a new class of nonconvex variational problems with exponential (p, r)-invex functionals. In this approach, we construct η- approximated variational problem and η-approximated Mond-Weir dual variational problem for the considered variational problem and its Mond-Weir dual variational problem. Then several duality results for considered variational problem and its Mond-Weir dual variational problem are proved by the help of duality results established between η-approximated variational problems mentioned above.

Balancing Act: How Does An Interdisciplinary Art Unit Affect Student Self-Efficacy In A Stem School?, Cindy Hankins-Koppel

Ed.D. Dissertations

Abstract

Educators who use interdisciplinary methods in the classroom need consistent strategies to teach STEM content, and methods to help students increase self-efficacy. The focus on cognitive gains in STEM studies limits the number of students who pursue a foundation of STEM and 21st century skills to adapt to technological advancements for their futures. Student self-efficacy, perception of personal abilities, has become more critical as individuals need a range of academic and personal skills to adapt and persist in future endeavors. Social stereotypes and familial interests influence an individual's perception of their abilities to pursue a career in STEM from …

บทความ: ผลกระทบของสภาพภูมิอากาศที่เปลี่ยนแปลงต่อทรัพยากรน้ำและการจัดการ, ศิริรัตน์ สังขรักษ์, พัชชาพันธ์ รัตนพันธ์, อาทิตย์ เพ็ชร์รักษ์, สุทธิรัตน์ กิตติพงษ์วิเศษ

Thai Environment

No abstract provided.

Mathematics Education Communities: Crossing Virtual Boundaries, Joshua T. Hertel,, Nicole M. Enzinger, Justin K. Dimmel

Faculty Publications - College of Education

The growth of social media has yielded a range of virtual communities focused on issues related to education (Carpenter & Krutka, 2014; Hur & Brush, 2009). These communities, which operate across a range of different platforms, create an evolving landscape for users to navigate. Moreover, interactions within and across virtual communities has become a norm within society at large as well as within mathematics education. The Math Twitter Blog-o-Sphere (MTBoS), Mathematics Stack Exchange, specialized Facebook groups, and myNCTM are just a few examples of communities that are currently popular with mathematics teachers and educators in North America. Similarly, students of …

Breaking The Ice With Interesting Mathematics, Cheryl Beaver, Laurie Burton, Rachel Harrington

Faculty Publications - College of Education

No abstract provided.

Growth And Development, From: Forages: The Science Of Grassland Agriculture, Volume Ii, Robert B. Mitchell, Daren Redfearn, Kenneth J. Moore

Department of Agronomy and Horticulture: Faculty Publications

The growth and development of forage plants is an amazing process. In some annual grasses such as cereal rye, plants can go from the late vegetative stage to fully-flowered in less than two weeks. Conversely, some perennial grasses like indiangrass can go from the vegetative stage to the elongation stage, then enter a quiescent phase for several weeks until adequate moisture is available which then moves plants into the flowering stages to complete the seed production process. Understanding the developmental morphology of forage plants is important for making good management decisions. Many such decisions involve timing the initiation or termination …

Deep Guidance Network For Biomedical Image Segmentation, Pengshuai Yin, Rui Yuan, Yiming Cheng, Qingyao Wu

College of Natural and Applied Sciences

Segmentation of 2D images is a fundamental problem for biomedical image analysis. The most widely used architecture for biomedical image segmentation is U-Net. U-Net introduces skip-connections to restore the spatial information loss caused by down-sampling operations. However, for some tasks such as the retinal vessel segmentation, the loss information of structure can not be fully recovered since the vessels is merely a curve line that can not be detected after several convolutions. In this paper, we introduce a deep guidance network to segment the biomedical image. Our proposed network consists of a guided image filter module to restore the structure …

First-Semester Organic Chemistry During Covid-19: Prioritizing Group Work, Flexibility, And Student Engagement, Leslie A. Nickerson, Kevin M. Shea

Chemistry: Faculty Publications

Our first-semester organic chemistry class focused on structured group work to enable active learning in class. When Smith College switched to online learning after spring break, the class was adapted to fit into an online learning model while retaining active learning. Using feedback from students, we implemented two tracks, one focused on independent work and one focused on group work. Using Zoom’s breakout rooms, we were able to simulate the full class and small group experiences of our in-person class with the help of student learning assistants to facilitate group learning. Slack was introduced for class questions and communications. Student …

“You Don’T Wanna Teach Little Kids About Climate Change”: Beliefs And Barriers To Sustainability Education In Early Childhood, Julia L. Ginsburg, Shannon Audley

Education and Child Study: Faculty Publications

To support a sustainable planet, preschools need to engage young children with sustainability education. In the United States of America (USA), nature-based preschool programs are likely to promote environmental science and nature education, given their outdoor curricula, but very little is known about how these programs might also cultivate sustainability education. The purpose of the present study was to investigate nature-based preschool teachers’ craft knowledge (Grimmett & MacKinnon, 1992) about sustainability education within curricula as they presently exist. We interviewed 22 early childhood educators and administrators across nine early childhood nature-based education centers in the Northeastern United States. Following Davis' …

The Power Of Children’S Voices: Potentials For Teacher Education, Beth D. Tolley, Cristina Valencia Mazzanti

Education and Child Study: Faculty Publications

Research literature documents a richness of innovations and projects advocating school-university partnerships that facilitate robust clinical practice. In the context of this focus on clinical work and school-university partnerships there are many possibilities to explore the way children may participate in these partnerships as contributors and experts; particularly, when we acknowledge that their role has predominantly been that of the benefactors of partnership efforts. Children have often been seen as the targets and recipients of the combined efforts of pre-service and in-service teacher collaborations with a focus on student achievement and social/emotion growth. In response to the call for innovative …

The Igneous Rock Intrusion Beneath Ambon And Seram Islands, Eastern Indonesia, Basedon The Integration Of Gravity And Magnetic Inversion: Its Implications For Geothermalenergy Resources, Richard Lewerissa, Sismanto Sismanto, Ari Setiawan, Subagyo Pramumijoyo

Turkish Journal of Earth Sciences

Ambon and Seram islands in eastern Indonesia are located in the convergence zone of three major plates, causing this area to have many geothermal manifestations on the surface. A subsurface geological study on Ambon and Seram has been conducted based on the integration of gravity and magnetic inversion modeling to determine the intrusion of igneous rock as a potential source of geothermal energy. The gravity and magnetic inversion utilized gravity and magnetic anomaly data from the World Gravity Map (WGM) and the Earth Magnetic Anomaly Grid (EMAG), as well as the CRUST 1.0 global earth crust model, as the constraints. …

Depositional Environment And Sequence Stratigraphy Of The Khoshyeilagh Formation Inbojnourd And Jajarm (Ne Iran), Fatemeh Jafarbeigloo, Mahmoud Reza Majidifard, Bahaeddin Hamdi, Afshin Asghari, Mehran Arian

Turkish Journal of Earth Sciences

In this study, depositional environment and sequence stratigraphy of the Khoshyeilagh Formation has been investigated in three stratigraphic sections including Pelmis, Robat-e Qarehbil, and Kuhe Ozon in the northeast of Iran. The thickness of the Khoshyeilagh Formation in these sections are 182, 260, and 463 m, respectively. Based on the facies analysis of the Khoshyeilagh Formation, 3 clastic facies, 11 carbonate facies, and 1 hybrid facies were identified. The vertical and lateral changes of the Khoshyeilagh Formation show a shoreface marine depositional environment that begins with alluvial sediments and continues by marine sedimentation. According to these changes, a homoclinal ramp …

Improving The Value Of The Coconut With Biotechnology, Fabian M. Dayrit, Quang Nguyen

Chemistry Faculty Publications

The fruit of the coconut tree is perhaps the most useful plant resource in the tropics. All parts of the coconut fruit have traditional uses that have been developed commercially in recent times (Foale 2003, Dayrit and Dayrit 2013). Due to its widespread household use, trade and industry statistics on coconut products reflect only part of the actual importance of the coconut. Today, coconut-based products have gone beyond the tropics and are consumed in many temperate countries and global regions such as Australia, China, Europe, North America, and the Middle East (Costello 2018). Coconut milk is the basic ingredient of …

Feasibility Of Cyclodextrin-Potassium Ion Assemblies Synthesis And Its Application In Loading Bio-Active Molecules, Yomkippur Perez, Gilbert U. Yu

Chemistry Faculty Publications

In the study, colorless cubic crystals of “green” cyclodextrin (CD)-based assemblies were synthesized and their potential to load bio-active molecules such as drugs and, separately, enzymes were investigated. Busulfan (Bu), an anti-cancer drug widely used to treat chronic myelogenous leukemia (CML), was used as a test drug while trypsin and lipase were used as model enzymes. These porous CD-K+ ion assemblies were prepared by dissolving alkali metal salts and γ-CD in water followed by vapor diffusion in varying solvents for several days. Crystals were activated via dichloromethane dispersion and in vacuo drying. Slow vapor diffusion with ethanol was found to …

Fabrication Of A 3d Printed Porous Junction For Ag|Agcl|Gel-Kcl Reference Electrode, Sarah May Sibug-Torres, Lance P. Go, Erwin Enriquez

Chemistry Faculty Publications

Fused filament fabrication (FFF) is a 3D printing method that is attracting increased interest in the development of miniaturized electrochemical sensor systems due to its versatility, low cost, reproducibility, and capability for rapid prototyping. A key component of miniaturized electrochemical systems is the reference electrode (RE). However, reports of the fabrication of a true 3D-printed RE that exhibits stability to variations in the sample matrix remain limited. In this work, we report the development and characterization of a 3D-printed Ag|AgCl|gel-KCl reference electrode (3D-RE). The RE was constructed using a Ag|AgCl wire and agar-KCl layer housed in a watertight 3D-printed acrylonitrile …

Biodegradability Of Single And Mixed Surfactant Formulations, Jarrent R. Tayag, Ronaldo M. Fabicon

Chemistry Faculty Publications

Even though detergent surfactants are mandated to be biodegradable, the environmental fate of these surfactants when mixed together in bodies of water is still not established. The study aimed to determine the biodegradability of NaLAS/CTAB surfactant combinations by measuring the amount of evolved CO2 which was measured using the OECD 301b procedure. The 90/10 and 10/90 NaLAS/CTAB systems showed a decline in biodegradation behaviors which were recorded as 55.88% and 40.12% biodegradation, respectively, after a 28-day monitoring period. Conductivity results revealed changes in the availability of ions in the system. An inflection point was observed at a CTAB concentration of …

Global Energy Poverty: The Relevance Of Faith And Reason, Lakshman Guruswamy

Publications

The challenge of energy poverty (EP) primarily confronts the least developed countries (LDCs) of the world, located in Africa and Asia, but is also prevalent within segments of more advanced developing countries in Asia. This article will first delineate the nature of global energy poverty that results in the premature deaths of millions of people and leads to pervasive sickness among many more millions. The article will next sketch the legal and political responses to this problem that have generally applied principles of sustainable development (SD) and the seventeen Sustainable Development Goals (SDGs) of 2015 adopted by the General Assembly …

New York State Economic Status Of Regions And Development Programs, Michael J. Wasylenko

Center for Policy Research

No abstract provided.