scholarly journals A Full-Fledged Analytical Solution to the Quantum Harmonic Oscillator for Undergraduate Students of Science and Engineering

Physics ◽  
2020 ◽  
Vol 2 (4) ◽  
pp. 541-570
Author(s):  
Arturo Rodríguez-Gómez ◽  
Ana Laura Pérez-Martínez
Keyword(s):  
Analytical Solution ◽  
Harmonic Oscillator ◽  
Undergraduate Students ◽  
Solution Procedure ◽  
Quantum Harmonic Oscillator ◽  
Web Based ◽  
Chemistry Students ◽  
Physics Students ◽  
Step Procedure ◽  
And Mathematics

The quantum harmonic oscillator is a fundamental piece of physics. In this paper, we present a self-contained full-fledged analytical solution to the quantum harmonic oscillator. To this end, we use an eight-step procedure that only uses standard mathematical tools available in natural science, technology, engineering and mathematics disciplines. This solution is accessible not only for physics students but also for undergraduate engineering and chemistry students. We provide interactive web-based graphs for the reader to observe the shape of the wave functions for an electron and a proton when both are subject to the same potential. Each of the eight steps in our solution procedure is treated as a separate problem in order to allow the reader to quickly consult any step without the need to review the entire article.

scholarly journals Locate your soundscape: interacting with the acoustic environment

2021 ◽  
Author(s):  
Nicola Orio ◽  
Berardina De Carolis ◽  
Francesco Liotard
Keyword(s):  
Undergraduate Students ◽  
Visual Information ◽  
Mobile App ◽  
Initial Experiment ◽  
Web Based ◽  
Acoustic Environment ◽  
Entire Country ◽  
Interactive Map ◽  
Main Components ◽  
The City

AbstractAlthough overshadowed by visual information, sound plays a central role in how people perceive an environment. The effect of a landscape is enriched by its soundscape, that is, the stratification of all the acoustic sources that, often unconsciously, are heard. This paper presents a framework for archiving, browsing, and accessing soundscapes, either remotely or on-site. The framework is based on two main components: a web-based interface to upload and search the recordings of an acoustic environment, enriched by in- formation about geolocation, timing, and context of the recording; and a mobile app to browse and listen to the recordings, using an interactive map or GPS information. To populate the archive, we launched two crowdsourcing initiatives. An initial experiment examined the city of Padua’s soundscape through the participation of a group of undergraduate students. A broader experiment, which was proposed to all people in Italy, aimed at tracking how the nationwide COVID-19 lockdown was dramatically changing the soundscape of the entire country.

scholarly journals Quadratic open quantum harmonic oscillator

2020 ◽  
Vol 110 (7) ◽  
pp. 1759-1782
Author(s):  
Ameur Dhahri ◽  
Franco Fagnola ◽  
Hyun Jae Yoo
Keyword(s):  
Harmonic Oscillator ◽  
Quantum Harmonic Oscillator ◽  
Open Quantum

scholarly journals The influence of expressive and instrumental social capital from parents on women and underrepresented minority students’ declaration and persistence in engineering majors

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Ellen Puccia ◽  
Julie P. Martin ◽  
Chrystal A. S. Smith ◽  
Gladis Kersaint ◽  
Rebecca Campbell-Montalvo ◽  
...  
Keyword(s):  
Social Capital ◽  
Minority Students ◽  
Transition To Adulthood ◽  
Undergraduate Students ◽  
White Women ◽  
Underrepresented Minority ◽  
Engineering Majors ◽  
Underrepresented Minority Students ◽  
Parental Encouragement ◽  
And Mathematics

Abstract Background Social capital, defined as the people one knows and the resources available through that network of people, has been a key variable in research examining the participation of women and underrepresented minority students in science, technology, engineering, and mathematics (STEM). This study focuses on two types of social capital: instrumental (concrete advice and resources) and expressive (emotional support and encouragement). The analysis of interviews with 55 White women and women and men underrepresented minority engineering undergraduate students shows how the instrumental and expressive social capital received from parents influenced their students’ declaration of and persistence in the engineering major. Within this analysis, we considered students’ transition to adulthood and the corresponding expectation that parents would still provide support but allow their children to independently determine their own paths. Results Participants shared the advice they received from people in their social networks, with the majority of participants highlighting parents as a major contributor of instrumental and expressive social capital. Instrumental social capital was helpful in students’ major declarations and offered them an opportunity to further develop their interests and aptitude in STEM as well as a pathway for obtaining an engineering degree. During the first year of their engineering major, students relied heavily on the expressive social capital of parents when considering whether to stay in engineering; parental encouragement of “you can do it” became a common resource. Conclusions These findings offer nuance to explanations of social capital’s influence on STEM degree major declaration and persistence, which often use deficit approaches. In highlighting the resources of social capital, especially expressive support, this work offers educators a new frame of reference for building upon the valuable advice offered by parents to their children completing engineering majors.

Fostering Persistence in Science, Technology, Engineering, and Mathematics (STEM): Creating an Equitable Environment That Addresses the Needs of Undergraduate Students

2022 ◽  
pp. 152102512110735
Author(s):  
Jennifer Louten
Keyword(s):  
Social Support ◽  
Student Retention ◽  
Undergraduate Students ◽  
Real World ◽  
Hispanic Students ◽  
Critical Issue ◽  
Degree Programs ◽  
Science Technology ◽  
Stem Students ◽  
And Mathematics

Student retention is a critical issue for universities, and nearly half of the students who start degree programs in science, technology, engineering, and mathematics (STEM) do not complete them. The current study tracks the progress of STEM students taking part in an entry-to-graduation program designed to build community, provide academic and social support, and promote engagement in academically purposeful activities. Although it had no effect on the number of students who changed their major, the program more than doubled the number of students who graduated in their original major. Black or Hispanic students taking part in the program also graduated at twice the rate of comparator students, largely attributable to the success of women in these groups. The results provide needed real-world insights into how to create an equitable environment that promotes the persistence and graduation of students, including those from groups historically underrepresented in STEM.

STEM undergraduate students: library use, perceptions and GPA

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Jung Mi Scoulas
Keyword(s):  
Undergraduate Students ◽  
Student Survey ◽  
Grade Point ◽  
Content Type ◽  
Stem Disciplines ◽  
Library Use ◽  
Library Resources ◽  
User Groups ◽  
And Mathematics ◽  
Online Library

PurposeThis study aims to examine if differences exist in undergraduate students' library use, perceptions and grade point average (GPA) among science, technology, engineering and mathematics (STEM) and non-STEM disciplines.Design/methodology/approachThe current study used data from the 2018 student survey. Among 2,277 students who completed the survey (response rate = 8%), only undergraduate students (n = 1,265) were selected for this study because the current study aims to examine the differences between STEM and non-STEM undergraduate students.FindingsThe findings from a Mann–Whitney U test revealed that STEM respondents perceived specific library resources (subject and course guide, library instructions and library workshops) as slightly less than non-STEM respondents. The results from ANOVA demonstrated that the mean scores in GPA for STEM respondents who never used online library, journals and databases were lower than respondents who used those library resources, regardless of STEM and non-STEM disciplines.Originality/valueRevisiting the data collected and analyzing specific user groups will be valuable to academic libraries because this study will provide academic librarians with a deeper understanding of specific user needs and perceptions of library resources and services.

Supporting learners’ STEM-oriented career pathways with digital badges

2019 ◽  
Vol 120 (1/2) ◽  
pp. 87-107 ◽  
Author(s):  
Caroline R. Pitt ◽  
Adam Bell ◽  
Rose Strickman ◽  
Katie Davis
Keyword(s):  
Higher Education ◽  
Undergraduate Students ◽  
Career Pathways ◽  
Research Approach ◽  
Digital Badges ◽  
Content Type ◽  
Technology Industry ◽  
Learning Pathways ◽  
And Mathematics ◽  
Practical Implications

Purpose This paper aims to investigate the potential for digital badges to support alternate learning and career pathways in formal and informal learning environments. Stakeholder groups in higher education and industry discussed how digital badges might transform current processes of admitting undergraduate students and hiring young professionals. Design/methodology/approach This research uses a thematic analysis of in-depth interviews with 30 stakeholders in higher education and the technology industry. Findings Interview participants expressed optimism about the potential for digital badges to make learning pathways visible to learners and external audiences and to promote equity in STEM (STEM: science, technology, engineering, and mathematics) education and careers. Participants noted several obstacles, largely focused on issues of credibility and logistics of working with badges across settings. Research limitations/implications Though the research approach is limited in geographic scope, the findings have broad applicability and insight for the use of digital badges in general. Practical implications Education policymakers, employers and scholars will be able to use the insights from this investigation in their efforts to find innovative ways to expand and diversify the STEM workforce, as well as support a wider range of learners than is currently supported by initiatives aligned with the school-to-workforce pipeline metaphor. Originality/value This paper directly confronts issues of real-world applications of digital badges by discussing practical implications with college admissions officers and employers. The current study fills a need for research that investigates the use of digital badges across – as opposed to within – contexts.

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