laboratory exercise students: Topics by Science.gov

Sample records for laboratory exercise students

Students' Perception of Self-Efficacy Following Medicinal Chemistry Skills Laboratory Exercises.

PubMed

Alsharif, Naser Z; Roche, Victoria F; Qi, Yongyue

2016-06-25

Objective. To analyze student perceptions of self-efficacy in meeting medicinal chemistry course related educational outcomes and skills following a medicinal chemistry skills laboratory. Methods. Four activities were implemented in a pharmacy skills laboratory (PSL) for second-year pharmacy students. Students (n=121) worked individually on exercises for three of the four activities. Pre/post-laboratory surveys on self-efficacy were administered. The McNemar test was performed to evaluate students' self-efficacy above 70% related to course outcomes before and after the exercises in each activity. An independent t test was conducted to compare the mean of students' responses on meeting course outcomes based on the 70% anchor for the perspective confidence on meeting course outcomes. Results. The post-PSL scores on all self-efficacy questions improved. The majority of students reported skill development in all exercises. Students and clinical faculty qualitative responses indicated they felt exercises were effective. Conclusion. A PSL can serve as a valuable opportunity to address course related educational outcomes and specific skill development and can help students assess their self-efficacy in meeting them.
Students' framing of laboratory exercises using infrared cameras

NASA Astrophysics Data System (ADS)

Haglund, Jesper; Jeppsson, Fredrik; Hedberg, David; Schönborn, Konrad J.

2015-12-01

Thermal science is challenging for students due to its largely imperceptible nature. Handheld infrared cameras offer a pedagogical opportunity for students to see otherwise invisible thermal phenomena. In the present study, a class of upper secondary technology students (N =30 ) partook in four IR-camera laboratory activities, designed around the predict-observe-explain approach of White and Gunstone. The activities involved central thermal concepts that focused on heat conduction and dissipative processes such as friction and collisions. Students' interactions within each activity were videotaped and the analysis focuses on how a purposefully selected group of three students engaged with the exercises. As the basis for an interpretative study, a "thick" narrative description of the students' epistemological and conceptual framing of the exercises and how they took advantage of the disciplinary affordance of IR cameras in the thermal domain is provided. Findings include that the students largely shared their conceptual framing of the four activities, but differed among themselves in their epistemological framing, for instance, in how far they found it relevant to digress from the laboratory instructions when inquiring into thermal phenomena. In conclusion, the study unveils the disciplinary affordances of infrared cameras, in the sense of their use in providing access to knowledge about macroscopic thermal science.
INDUSTRIAL RADIOGRAPHY STUDENT GUIDE AND LABORATORY EXERCISES.

ERIC Educational Resources Information Center

Bureau of Adult, Vocational, and Technical Education (DHEW/OE), Washington, DC. Div. of Vocational and Technical Education.

THIS INSTRUCTOR'S GUIDE TO AN 80-HOUR COURSE IN INDUSTRIAL RADIOGRAPHY IS COORDINATED WITH LESSONS IN THE STUDENT GUIDE AND LABORATORY EXERCISES AND IS BASED ON MATERIAL IN THE COURSE MANUAL, INDUSTRIAL RADIOGRAPHY. THE COURSE IS INTENDED TO TRAIN HIGH SCHOOL GRADUATES AS BEGINNING RADIOGRAPHERS WHO ARE EXPECTED TO BE ABLE TO EXTEND THEIR…
Students' Cognitive Focus during a Chemistry Laboratory Exercise: Effects of a Computer-Simulated Prelab

ERIC Educational Resources Information Center

Winberg, T. Mikael; Berg, C. Anders R.

2007-01-01

To enhance the learning outcomes achieved by students, learners undertook a computer-simulated activity based on an acid-base titration prior to a university-level chemistry laboratory activity. Students were categorized with respect to their attitudes toward learning. During the laboratory exercise, questions that students asked their assistant…
Evaluating a College-Prep Laboratory Exercise for Teenaged Homeschool Students in a University Setting

ERIC Educational Resources Information Center

Hercules, Daniel A.; Parrish, Cameron A.; Whitehead, Daniel C.

2016-01-01

We devised a half-day laboratory exercise for a group of 10th grade homeschooled students enrolled in an honors-level high school general chemistry course organized by a collective of homeschooling families associated with local Christian churches. Anecdotal evidence suggested that the students met the learning objectives of the exercise. The…
Laboratory exercises to teach clinically relevant chemistry of antibiotics.

PubMed

El Sayed, Khalid A; Chelette, Candace T

2014-03-12

To design, implement, and evaluate student performance on clinically relevant chemical and spectral laboratory exercises on antibiotics. In the first of 2 exercises, second-year pharmacy students enrolled in an integrated laboratory sequence course studied the aqueous stability of ß-lactam antibiotics using a spectral visual approach. In a second exercise, students studied the tendency of tetracycline, rifamycins, and fluoroquinolones to form insoluble chelate complexes (turbidity) with polyvalent metals. On a survey to assess achievement of class learning objectives, students agreed the laboratory activities helped them better retain important information concerning antibiotic stability and interactions. A significant improvement was observed in performance on examination questions related to the laboratory topics for 2012 and 2013 students compared to 2011 students who did not complete the laboratory. A 1-year follow-up examination question administered in a separate course showed >75% of the students were able to identify rifamycins-food interactions compared with <25% of students who had not completed the laboratory exercises. The use of spectral visual approaches allowed students to investigate antibiotic stability and interactions, thus reinforcing the clinical relevance of medicinal chemistry. Students' performance on questions at the 1-year follow-up suggested increased retention of the concepts learned as a result of completing the exercises.
Laboratory Exercises to Teach Clinically Relevant Chemistry of Antibiotics

PubMed Central

Chelette, Candace T.

2014-01-01

Objectives. To design, implement, and evaluate student performance on clinically relevant chemical and spectral laboratory exercises on antibiotics. Design. In the first of 2 exercises, second-year pharmacy students enrolled in an integrated laboratory sequence course studied the aqueous stability of ß-lactam antibiotics using a spectral visual approach. In a second exercise, students studied the tendency of tetracycline, rifamycins, and fluoroquinolones to form insoluble chelate complexes (turbidity) with polyvalent metals. Assessment. On a survey to assess achievement of class learning objectives, students agreed the laboratory activities helped them better retain important information concerning antibiotic stability and interactions. A significant improvement was observed in performance on examination questions related to the laboratory topics for 2012 and 2013 students compared to 2011 students who did not complete the laboratory. A 1-year follow-up examination question administered in a separate course showed >75% of the students were able to identify rifamycins-food interactions compared with <25% of students who had not completed the laboratory exercises. Conclusion. The use of spectral visual approaches allowed students to investigate antibiotic stability and interactions, thus reinforcing the clinical relevance of medicinal chemistry. Students’ performance on questions at the 1-year follow-up suggested increased retention of the concepts learned as a result of completing the exercises. PMID:24672070
Simulation of General Physics laboratory exercise

NASA Astrophysics Data System (ADS)

Aceituno, P.; Hernández-Aceituno, J.; Hernández-Cabrera, A.

2015-01-01

Laboratory exercises are an important part of general Physics teaching, both during the last years of high school and the first year of college education. Due to the need to acquire enough laboratory equipment for all the students, and the widespread access to computers rooms in teaching, we propose the development of computer simulated laboratory exercises. A representative exercise in general Physics is the calculation of the gravity acceleration value, through the free fall motion of a metal ball. Using a model of the real exercise, we have developed an interactive system which allows students to alter the starting height of the ball to obtain different fall times. The simulation was programmed in ActionScript 3, so that it can be freely executed in any operative system; to ensure the accuracy of the calculations, all the input parameters of the simulations were modelled using digital measurement units, and to allow a statistical management of the resulting data, measurement errors are simulated through limited randomization.
Laboratory Exercise on Active Transport.

ERIC Educational Resources Information Center

Stalheim-Smith, Ann; Fitch, Greg K.

1985-01-01

Describes a laboratory exercise which demonstrates qualitatively the specificity of the transport mechanism, including a consideration of the competitive inhibition, and the role of adenosine triphosphate (ATP) in active transport. The exercise, which can be completed in two to three hours by groups of four students, consistently produces reliable…
Procedures of Exercise Physiology Laboratories

NASA Technical Reports Server (NTRS)

Bishop, Phillip A.; Fortney, Suzanne; Greenisen, Michael; Siconolfi, Steven F.; Bamman, Marcas M.; Moore, Alan D., Jr.; Squires, William

1998-01-01

This manual describes the laboratory methods used to collect flight crew physiological performance data at the Johnson Space Center. The Exercise Countermeasures Project Laboratory is a standard physiology laboratory; only the application to the study of human physiological adaptations to spaceflight is unique. In the absence of any other recently published laboratory manual, this manual should be a useful document staffs and students of other laboratories.
Laboratory Exercises in Online Information Assurance Courses

ERIC Educational Resources Information Center

Bhagyavati

2006-01-01

Information assurance courses delivered in an online environment pose challenges to the development of meaningful hands-on exercises for students. This article presents techniques on furnishing laboratory exercises to online students and presents examples of assignments drawn from the author's experiences in teaching online courses for over three…
A laboratory exercise in experimental bioimmuration

USGS Publications Warehouse

Mankiewicz, C.

1998-01-01

A paleobiologic laboratory exercise using lunch meat, cheeses, and condiments provides a means for studying a method of fossil preservation called "bioimmuration." The exercise also has students deal with problems associated with other aspects of taphonomy, taxonomy, and paleoecology.
Cross-disciplinary thermoregulation and sweat analysis laboratory experiences for undergraduate Chemistry and Exercise Science students.

PubMed

Mulligan, Gregory; Taylor, Nichole; Glen, Mary; Tomlin, Dona; Gaul, Catherine A

2011-06-01

Cross-disciplinary (CD) learning experiences benefit student understanding of concepts and curriculum by offering opportunities to explore topics from the perspectives of alternate fields of study. This report involves a qualitative evaluation of CD health sciences undergraduate laboratory experiences in which concepts and students from two distinct disciplines [chemistry (CHEM) and exercise physiology (EPHE)] combined to study exercise thermoregulation and sweat analysis. Twenty-eight senior BSc Kinesiology (EPHE) students and 42 senior BSc CHEM students participated as part of their mutually exclusive, respective courses. The effectiveness of this laboratory environment was evaluated qualitatively using written comments collected from all students as well as from formal focus groups conducted after the CD laboratory with a representative cohort from each class (n = 16 CHEM students and 9 EPHE students). An open coding strategy was used to analyze the data from written feedback and focus group transcripts. Coding topics were generated and used to develop five themes found to be consistent for both groups of students. These themes reflected the common student perceptions that the CD experience was valuable and that students enjoyed being able to apply academic concepts to practical situations as well as the opportunity to interact with students from another discipline of study. However, students also reported some challenges throughout this experience that stemmed from the combination of laboratory groups from different disciplines with limited modification to the design of the original, pre-CD, learning environments. The results indicate that this laboratory created an effective learning opportunity that fostered student interest and enthusiasm for learning. The findings also provide information that could inform subsequent design and implementation of similar CD experiences to enhance engagement of all students and improve instructor efficacy.
A pharmacy practice laboratory exercise to apply biochemistry concepts.

PubMed

Harrold, Marc W; McFalls, Marsha A

2010-10-11

To develop exercises that allow pharmacy students to apply foundational knowledge discussed in a first-professional year (P1) biochemistry course to specific disease states and patient scenarios. A pharmacy practice laboratory exercise was developed to accompany a lecture sequence pertaining to purine biosynthesis and degradation. The assignment required students to fill a prescription, provide patient counseling tips, and answer questions pertaining to the disease state, the underlying biochemical problem, and the prescribed medication. Students were graded on the accuracy with which they filled the prescription, provided patient counseling, and answered the questions provided. Overall, students displayed mastery in all of these areas. Additionally, students completed a course survey on which they rated this exercise favorably, noting that it helped them to integrate basic science concepts and pharmacy practice. A laboratory exercise provided an opportunity for P1 students to apply foundational pharmacy knowledge to a patient case and can serve as a template for the design of additional exercises.
The Exercise Physiology Laboratory--A Source of Health Promotion.

ERIC Educational Resources Information Center

Norris, William; Norred, Robert

1988-01-01

A visit to the Exercise Physiology Laboratory at the University of Tennessee is part of a physical education class required of all undergraduate students. The laboratory demonstration stimulates student interest and enrollment in physical education. Benefits to students, the laboratory, and the school are described. (MT)
How to Generate Understanding of the Scientific Process in Introductory Biology: A Student-Designed Laboratory Exercise on Yeast Fermentation

ERIC Educational Resources Information Center

Collins, Linda T.; Bell, Rebekah P.

2004-01-01

Heavy faculty teaching loads and limited funds biology teachers designed certain objectives in order to increase the understandability of the subject matter of the laboratory exercises they write. In relation to these objectives an old "cookbook" laboratory exercise on yeast fermentation is introduced which involve students asking questions,…
Blended learning within an undergraduate exercise physiology laboratory.

PubMed

Elmer, Steven J; Carter, Kathryn R; Armga, Austin J; Carter, Jason R

2016-03-01

In physiological education, blended course formats (integration of face-to-face and online instruction) can facilitate increased student learning, performance, and satisfaction in classroom settings. There is limited evidence on the effectiveness of using blending course formats in laboratory settings. We evaluated the impact of blended learning on student performance and perceptions in an undergraduate exercise physiology laboratory. Using a randomized, crossover design, four laboratory topics were delivered in either a blended or traditional format. For blended laboratories, content was offloaded to self-paced video demonstrations (∼15 min). Laboratory section 1 (n = 16) completed blended laboratories for 1) neuromuscular power and 2) blood lactate, whereas section 2 (n = 17) completed blended laboratories for 1) maximal O2 consumption and 2) muscle electromyography. Both sections completed the same assignments (scored in a blinded manner using a standardized rubric) and practicum exams (evaluated by two independent investigators). Pre- and postcourse surveys were used to assess student perceptions. Most students (∼79%) watched videos for both blended laboratories. Assignment scores did not differ between blended and traditional laboratories (P = 0.62) or between sections (P = 0.91). Practicum scores did not differ between sections (both P > 0.05). At the end of the course, students' perceived value of the blended format increased (P < 0.01) and a greater percentage of students agreed that learning key foundational content through video demonstrations before class greatly enhanced their learning of course material compared with a preassigned reading (94% vs. 78%, P < 0.01). Blended exercise physiology laboratories provided an alternative method for delivering content that was favorably perceived by students and did not compromise student performance. Copyright © 2016 The American Physiological Society.
Assessment of an ELISA Laboratory Exercise

ERIC Educational Resources Information Center

Robinson, David L.; Lau, Joann M.

2012-01-01

The enzyme-linked immunosorbent assay (ELISA) is a powerful immunological technique for quantifying small amounts of compounds and has been used in research and clinical settings for years. Although there are laboratory exercises developed to introduce the ELISA technique to students, their ability to promote student learning has not been…
Students’ Perception of Self-Efficacy Following Medicinal Chemistry Skills Laboratory Exercises

PubMed Central

Roche, Victoria F.; Qi, Yongyue

2016-01-01

Objective. To analyze student perceptions of self-efficacy in meeting medicinal chemistry course related educational outcomes and skills following a medicinal chemistry skills laboratory. Methods. Four activities were implemented in a pharmacy skills laboratory (PSL) for second-year pharmacy students. Students (n=121) worked individually on exercises for three of the four activities. Pre/post-laboratory surveys on self-efficacy were administered. The McNemar test was performed to evaluate students’ self-efficacy above 70% related to course outcomes before and after the exercises in each activity. An independent t test was conducted to compare the mean of students’ responses on meeting course outcomes based on the 70% anchor for the perspective confidence on meeting course outcomes. Results. The post-PSL scores on all self-efficacy questions improved. The majority of students reported skill development in all exercises. Students and clinical faculty qualitative responses indicated they felt exercises were effective. Conclusion. A PSL can serve as a valuable opportunity to address course related educational outcomes and specific skill development and can help students assess their self-efficacy in meeting them. PMID:27402979
Student Attitudes towards Laboratory Exercises in Medical Biochemistry.

ERIC Educational Resources Information Center

Cronholm, Tomas; Hoog, Jan-Olov; Martenson, Dick

2000-01-01

Examines student attitudes towards biochemical experiments and their effect on student learning. Finds that biochemical experiments in the medical curriculum are valuable, but efforts should be directed more towards the development of students' attitudes and approaches to the exercise. (Author/CCM)

A qualitative case study of instructional support for web-based simulated laboratory exercises in online college chemistry laboratory courses

NASA Astrophysics Data System (ADS)

Schulman, Kathleen M.

This study fills a gap in the research literature regarding the types of instructional support provided by instructors in online introductory chemistry laboratory courses that employ chemistry simulations as laboratory exercises. It also provides information regarding students' perceptions of the effectiveness of that instructional support. A multiple case study methodology was used to carry out the research. Two online introductory chemistry courses were studied at two community colleges. Data for this study was collected using phone interviews with faculty and student participants, surveys completed by students, and direct observation of the instructional designs of instructional support in the online Blackboard web sites and the chemistry simulations used by the participating institutions. The results indicated that the instructors provided multiple types of instructional support that correlated with forms of effective instructional support identified in the research literature, such as timely detailed feedback, detailed instructions for the laboratory experiments, and consistency in the instructional design of lecture and laboratory course materials, including the chemistry lab simulation environment. The students in one of these courses identified the following as the most effective types of instructional support provided: the instructor's feedback, opportunities to apply chemistry knowledge in the chemistry lab exercises, detailed procedures for the simulated laboratory exercises, the organization of the course Blackboard sites and the chemistry lab simulation web sites, and the textbook homework web sites. Students also identified components of instructional support they felt were missing. These included a desire for more interaction with the instructor, more support for the simulated laboratory exercises from the instructor and the developer of the chemistry simulations, and faster help with questions about the laboratory exercises or experimental
Use of a Laboratory Exercise on Molar Absorptivity to Help Students Understand the Authority of the Primary Literature

ERIC Educational Resources Information Center

Soundararajan, Madhavan; Bailey, Cheryl P.; Markwell, John

2008-01-01

To promote understanding of the authority of the primary literature in students taking our biochemistry laboratory courses, a biochemistry laboratory exercise on the determination of an acceptable molar absorptivity value of 2-nitrophenol (2-NP) was developed. This made the laboratory course much more relevant by linking to a thematic thread,…
A New Resource for College Distance Education Astronomy Laboratory Exercises

ERIC Educational Resources Information Center

Vogt, Nicole P.; Cook, Stephen P.; Muise, Amy Smith

2013-01-01

This article introduces a set of distance education astronomy laboratory exercises for use by college students and instructors and discusses first usage results. This General Astronomy Education Source exercise set contains eight two-week projects designed to guide students through both core content and mathematical applications of general…
Two Crystallographic Laboratory and Computational Exercises for Undergraduates.

ERIC Educational Resources Information Center

Lessinger, Leslie

1988-01-01

Describes two introductory exercises designed to teach the fundamental ideas and methods of crystallography, and to convey some important features of inorganic and organic crystal structures to students in an advanced laboratory course. Exercises include "The Crystal Structure of NiO" and "The Crystal Structure of Beta-Fumaric Acid." (CW)
Mapping Maize Genes: A Series of Research-Based Laboratory Exercises

ERIC Educational Resources Information Center

Makarevitch, Irina; Kralich, Elizabeth

2011-01-01

Open-ended, inquiry-based multiweek laboratory exercises are the key elements to increasing students' understanding and retention of the major biological concepts. Including original research into undergraduate teaching laboratories has also been shown to motivate students and improve their learning. Here, we present a series of original…
Laboratory exercises on oscillation modes of pipes

NASA Astrophysics Data System (ADS)

Haeberli, Willy

2009-03-01

This paper describes an improved lab setup to study the vibrations of air columns in pipes. Features of the setup include transparent pipes which reveal the position of a movable microphone inside the pipe; excitation of pipe modes with a miniature microphone placed to allow access to the microphone stem for open, closed, or conical pipes; and sound insulation to avoid interference between different setups in a student lab. The suggested experiments on the modes of open, closed, and conical pipes, the transient response of a pipe, and the effect of pipe diameter are suitable for introductory physics laboratories, including laboratories for nonscience majors and music students, and for more advanced undergraduate laboratories. For honors students or for advanced laboratory exercises, the quantitative relation between the resonance width and damping time constant is of interest.
Exploring Chemical Equilibrium with Poker Chips: A General Chemistry Laboratory Exercise

ERIC Educational Resources Information Center

Bindel, Thomas H.

2012-01-01

A hands-on laboratory exercise at the general chemistry level introduces students to chemical equilibrium through a simulation that uses poker chips and rate equations. More specifically, the exercise allows students to explore reaction tables, dynamic chemical equilibrium, equilibrium constant expressions, and the equilibrium constant based on…
A Laboratory Exercise to Assess Transpiration.

ERIC Educational Resources Information Center

Schrock, Gould F.

1982-01-01

Procedures are outlined for a laboratory exercise in which students use a gravimetric method to determine the rate of transpiration in sunflower seedlings. Discusses the data in terms of the effectiveness of stomatal openings, mechanisms for water movement in plants, and the role of transpiration in the environment. (DC)
Hot Salsa: A Laboratory Exercise Exploring the Scientific Method.

ERIC Educational Resources Information Center

Levri, Edward P.; Levri, Maureen A.

2003-01-01

Presents a laboratory exercise on spicy food and body temperature that introduces the scientific method to introductory biology students. Suggests that when students perform their own experiments which they have developed, it helps with their understanding of and confidence in doing science. (Author/SOE)
Are Your Cells Pregnant? Relating Biology Laboratory Exercises to Everyday Life.

ERIC Educational Resources Information Center

Rhodes, Simon J.; Banner, Lisa R.

2001-01-01

Presents a laboratory exercise that allows students to investigate the principles of hormone release from endocrine cells, which is highly relevant to students' everyday lives. (Contains 17 references.) (ASK)
Laboratory Experiences in Marine Biology, Student Edition.

ERIC Educational Resources Information Center

Raimist, Roger J.

This manual contains instructions for laboratory exercises using marine organisms. For each exercise a problem is defined, materials are listed, possible ways to solve the problem are suggested, questions are asked to guide the student in interpreting data, and further reading is suggested. The exercises deal with the measurement of oxygen…
Percolation Tests for Septic Systems: A Laboratory Exercise.

ERIC Educational Resources Information Center

Tinker, John R., Jr.

1978-01-01

Describes how the procedures by which a certificate soil tester evaluates a parcel of land for its suitability as a site for a private sewage system or septic tank can be used by college students as a laboratory exercise in environmental geology. (HM)
Climate-Literacy Laboratory Exercises for Undergraduate Students in an Introductory Weather and Climate Course

NASA Astrophysics Data System (ADS)

Diem, J.; Elliott, W.; Criswell, B.; Morrow, C. A.

2012-12-01

A suite of NASA-sponsored, Web-based exercises are in development for an introductory weather and climate course at Georgia State University (GSU) to improve climate literacy among undergraduate students. An extremely small percentage of the students are STEM majors. The exercises make extensive use of NASA resources and are guided in part by the concepts in Climate Literacy: The Essential Principles of Climate Science. At least two thousand undergraduate students have completed a majority of the exercises over the past two years. Nine of the twelve exercises in the course are connected strongly to climate literacy. The topics of those nine exercises are as follows: (1) Solar Irradiance, (2) Stratospheric Ozone, (3) Tropospheric Air, (4) The Carbon Cycle, (5) Global Surface Temperature, (6) Glacial-Interglacial Cycles, (7) Temperature Changes during the Past Millennium, (8) Climate & Ecosystems, and (9) Current & Future Climate Change. Two of the exercises (Tropospheric Air and The Carbon Cycle) make use of carbon dioxide (CO2) measurements made by students themselves and by a stationary CO2 monitor at GSU. The three remaining exercises, The Hadley Cell, Atlanta Weather, and Air Pollution, are less connected to multiple climate-literacy concepts; nonetheless, they provide a more complete experience for the students in the understanding of climate processes, differences between weather and climate, and human impacts on the atmosphere. All exercises are based on an inquiry-based learning cycle (i.e. 7 Es) and require substantial amounts of engagement, applied thinking, and critical thinking by the students. Not only do students become knowledgeable about the essential principles of climate change, especially global warming, but extensive use of geographical-information software and hand-held measurement devices has provided students with training in geography and technology. Student attitudes towards the labs were gathered via an on-line, anonymous survey from
Reactivity of Household Oxygen Bleaches: A Stepwise Laboratory Exercise in High School Chemistry Course

ERIC Educational Resources Information Center

Nakano, Masayoshi; Ogasawara, Haruka; Wada, Takeshi; Koga, Nobuyoshi

2016-01-01

This paper reports on a learning program designed for high school chemistry classes that involves laboratory exercises using household oxygen bleaches. In this program, students are taught the chemistry of oxygen bleaches through a stepwise inquiry using laboratory exercises organized with different pedagogical intents. Through comparative…
Exercise in Inquiry: Critical Thinking in an Inquiry-Based Exercise Physiology Laboratory Course.

ERIC Educational Resources Information Center

DiPasquale, Dana M.; Mason, Cheryl L.; Kolkhorst, Fred W.

2003-01-01

Describes an inquiry-based teaching method implemented in an undergraduate exercise physiology laboratory course. Indicates students' strong, positive feelings about the inquiry-based teaching method and shows that inquiry-based learning results in a higher order of learning not typically observed in traditional style classes. This teaching method…
Students' Framing of Laboratory Exercises Using Infrared Cameras

ERIC Educational Resources Information Center

Haglund, Jesper; Jeppsson, Fredrik; Hedberg, David; Schönborn, Konrad J.

2015-01-01

Thermal science is challenging for students due to its largely imperceptible nature. Handheld infrared cameras offer a pedagogical opportunity for students to see otherwise invisible thermal phenomena. In the present study, a class of upper secondary technology students (N = 30) partook in four IR-camera laboratory activities, designed around the…
Three Microstructural Exercises for Students.

ERIC Educational Resources Information Center

Means, Winthrop D.

1986-01-01

Describes laboratory exercises which demonstrate a new simplified technique for deforming thin samples of crystalline materials on the stage of a petrographic microscope. Discusses how this process allows students to see the development of microstructures resulting from cracking, slipping, thinning, and recrystallization. References and sources of…
The impact of collaborative groups versus individuals in undergraduate inquiry-based astronomy laboratory learning exercises

NASA Astrophysics Data System (ADS)

Sibbernsen, Kendra J.

One of the long-standing general undergraduate education requirements common to many colleges and universities is a science course with a laboratory experience component. One of the objectives frequently included in the description of most of these courses is that a student will understand the nature and processes of scientific inquiry. However, recent research has shown that learners in traditional undergraduate science laboratory environments are not developing a sufficiently meaningful understanding of scientific inquiry. Recently, astronomy laboratory activities have been developed that intentionally scaffold a student from guided activities to open inquiry ones and preliminary results show that these laboratories are successful for supporting students to understand the nature of scientific inquiry (Slater, S., Slater, T. F., & Shaner, 2008). This mixed-method quasi-experimental study was designed to determine how students in an undergraduate astronomy laboratory increase their understanding of inquiry working in relative isolation compared to working in small collaborative learning groups. The introductory astronomy laboratory students in the study generally increased their understanding of scientific inquiry over the course of the semester and this held true similarly for students working in groups and students working individually in the laboratories. This was determined by the examining the change in responses from the pretest to the posttest administration of the Views of Scientific Inquiry (VOSI) survey, the increase in scores on laboratory exercises, and observations from the instructor. Because the study was successful in determining that individuals in the astronomy laboratory do as well at understanding inquiry as those who complete their exercises in small groups, it would be appropriate to offer these inquiry-based exercises in an online format.
Laboratory Exercise: Study of Digestive and Regulatory Processes through the Exploration of Fasted and Postprandial Blood Glucose

ERIC Educational Resources Information Center

Hopper, Mari K.; Maurer, Luke W.

2013-01-01

Digestive physiology laboratory exercises often explore the regulation of enzyme action rather than systems physiology. This laboratory exercise provides a systems approach to digestive and regulatory processes through the exploration of postprandial blood glucose levels. In the present exercise, students enrolled in an undergraduate animal…
Can an Inquiry Approach Improve College Student Learning in a Teaching Laboratory?

PubMed Central

Cogan, John G.

2009-01-01

We present an inquiry-based, hands-on laboratory exercise on enzyme activity for an introductory college biology course for science majors. We measure student performance on a series of objective and subjective questions before and after completion of this exercise; we also measure performance of a similar cohort of students before and after completion of an existing, standard, “direct” exercise over the same topics. Although student performance on these questions increased significantly after completion of the inquiry exercise, it did not increase after completion of the control, standard exercise. Pressure to “cover” many complex topics as preparation for high-stakes examinations such as the Medical College Admissions Test may account for persistence of highly efficient, yet dubiously effective “cookbook” laboratory exercises in many science classes. PMID:19255136

A Laboratory Exercise Relating Soil Energy Budgets to Soil Temperature

ERIC Educational Resources Information Center

Koenig, Richard T.; Cerny-Koenig, Teresa; Kotuby-Amacher, Janice; Grossl, Paul R.

2008-01-01

Enrollment by students in degree programs other than traditional horticulture, agronomy, and soil science has increased in basic plant and soil science courses. In order to broaden the appeal of these courses to students from majors other than agriculture, we developed a hands-on laboratory exercise relating the basic concepts of a soil energy…
Merging of Research and Teaching in Developmental Biology: Adaptation of Current Scientific Research Papers for Use in Undergraduate Laboratory Exercises

ERIC Educational Resources Information Center

Lee, H. H.; and others

1970-01-01

Describes two laboratory exercises adopted from current research papers for use in an undergraduate developmental biology course. Gives methods, summary of student results, and student comments. Lists lecture topics, text and reprint assignments, and laboratory exercises for course. (EB)
Food Microbiology--Design and Testing of a Virtual Laboratory Exercise

ERIC Educational Resources Information Center

Flint, Steve; Stewart, Terry

2010-01-01

A web-based virtual laboratory exercise in identifying an unknown microorganism was designed for use with a cohort of 3rd-year university food-technology students. They were presented with a food-contamination case, and then walked through a number of diagnostic steps to identify the microorganism. At each step, the students were asked to select 1…
A Pollutant Transformation Laboratory Exercise for Environmental Chemistry: The Reduction of Nitrobenzenes by Anaerobic Solutions of Humic Acid

ERIC Educational Resources Information Center

Dunnivant, Frank M.; Reynolds, Mark-Cody

2007-01-01

The laboratory experiment, which acts as a capstone, integrated lecture-laboratory exercise involving solution preparation, pH buffers, [E[subscript]H] (reduction potential) buffers, organic reaction mechanisms, reaction kinetics, and instrumental analysis is presented. The students completing the lecture and laboratory exercises could gain a…
Using "Fremyella Diplosiphon" as a Model Organism for Genetics-Based Laboratory Exercises

ERIC Educational Resources Information Center

Montgomery, Beronda L.

2011-01-01

In this pilot study, a genetics-based laboratory exercise using the cyanobacterium Fremyella diplosiphon was developed and trialled with thirteen Natural Sciences undergraduates. Despite most students only having limited prior exposure to molecular genetics laboratory methods, this cohort confirmed that they were able to follow the protocol and…
Introducing Human Population Biology through an Easy Laboratory Exercise on Mitochondrial DNA

ERIC Educational Resources Information Center

Pardinas, Antonio F.; Dopico, Eduardo; Roca, Agustin; Garcia-Vazquez, Eva; Lopez, Belen

2010-01-01

This article describes an easy and cheap laboratory exercise for students to discover their own mitochondrial haplogroup. Students use buccal swabs to obtain mucosa cells as noninvasive tissue samples, extract DNA, and with a simple polymerase chain reaction-restriction fragment length polymorphism analysis they can obtain DNA fragments of…
Focusing on the Hard parts: A Biomechanics Laboratory Exercise

ERIC Educational Resources Information Center

Fingerut, Jonathan; Orbe, Kristina; Flynn, Daniel; Habdas, Piotr

2013-01-01

As part of a biomechanics course aimed at both upper-division Biology and Physics majors, this laboratory exercise introduces students to the ingenious ways in which organisms vary the composition and form of support and defensive structures such as bone and shell to maximize their strength while minimizing the energetic cost needed to produce…
A Laboratory Exercise to Determine Human ABO Blood Type by Noninvasive Methods

ERIC Educational Resources Information Center

Martin, Michael P.; Detzel, Stephen M.

2008-01-01

Analysis of single-nucleotide polymorphisms and their association with diseases and nondisease phenotypes is of growing importance in human biology studies. In this laboratory exercise, students determine the genetic basis for their ABO blood type; however, no blood is drawn. Students isolate genomic DNA from buccal mucosa cells that are present…
Observations on Microbiology Laboratory Instruction for Allied Health Students.

ERIC Educational Resources Information Center

Benathen, Isaiah A.

1993-01-01

The purposes of this paper are (1) to demonstrate that medical microbiology laboratory exercises should be presented with a focus on medical applications, not just traditional microbiology and (2) that exercises devoted to differential diagnostic decision making can be used to enhance the problem solving of students. (PR)
Glucose Transport in Cultured Animal Cells: An Exercise for the Undergraduate Cell Biology Laboratory

ERIC Educational Resources Information Center

Ledbetter, Mary Lee S.; Lippert, Malcolm J.

2002-01-01

Membrane transport is a fundamental concept that undergraduate students of cell biology understand better with laboratory experience. Formal teaching exercises commonly used to illustrate this concept are unbiological, qualitative, or intricate and time consuming to prepare. We have developed an exercise that uses uptake of radiolabeled nutrient…
Can an Inquiry Approach Improve College Student Learning in a Teaching Laboratory?

ERIC Educational Resources Information Center

Rissing, Steven W.; Cogan, John G.

2009-01-01

We present an inquiry-based, hands-on laboratory exercise on enzyme activity for an introductory college biology course for science majors. We measure student performance on a series of objective and subjective questions before and after completion of this exercise; we also measure performance of a similar cohort of students before and after…
Leaf Degradation, Macroinvertebrate Shredders & Energy Flow in Streams: A Laboratory-Based Exercise Examining Ecosystem Processes

ERIC Educational Resources Information Center

Sparkes, Timothy C.; Mills, Colleen M.; Volesky, Lisa; Talkington, Jennifer; Brooke, Joanna

2008-01-01

A laboratory-based exercise that demonstrates mechanisms underlying leaf degradation in streams. Students examine the effects of "leaf conditioning" on the feeding behavior of invertebrate shredders. The exercise is completed in two sessions and can be adapted to both high school and college levels.
Animal Galloping and Human Hopping: An Energetics and Biomechanics Laboratory Exercise

ERIC Educational Resources Information Center

Lindstedt, Stan L.; Mineo, Patrick M.; Schaeffer, Paul J.

2013-01-01

This laboratory exercise demonstrates fundamental principles of mammalian locomotion. It provides opportunities to interrogate aspects of locomotion from biomechanics to energetics to body size scaling. It has the added benefit of having results with robust signal to noise so that students will have success even if not "meticulous" in…
A Laboratory Exercise for Genotyping Two Human Single Nucleotide Polymorphisms

ERIC Educational Resources Information Center

Fernando, James; Carlson, Bradley; LeBard, Timothy; McCarthy, Michael; Umali, Finianne; Ashton, Bryce; Rose, Ferrill F., Jr.

2016-01-01

The dramatic decrease in the cost of sequencing a human genome is leading to an era in which a wide range of students will benefit from having an understanding of human genetic variation. Since over 90% of sequence variation between humans is in the form of single nucleotide polymorphisms (SNPs), a laboratory exercise has been devised in order to…
A Simple Student Laboratory on Osmotic Flow, Osmotic Pressure, and the Reflection Coefficient.

ERIC Educational Resources Information Center

Feher, Joseph J.; Ford, George D.

1995-01-01

Describes a laboratory exercise containing a practical series of experiments that novice students can perform within two hours. The exercise provides a confirmation of van't Hoff's law while placing more emphasis on osmotic flow than pressure. Students can determine parameters such as the reflection coefficient which stress the interaction of both…
Lidocaine Metabolism and Toxicity: A Laboratory Experiment for Dental Students.

ERIC Educational Resources Information Center

Kusek, J. C.

1980-01-01

A laboratory exercise for dental students is presented using a toxic dose of lidocaine in place of an anesthetic dose of pentobarbital. The use of lidocaine demonstrates its toxic and lethal actions and increases the relevance of the experience for dental students. (Author/MLW)
Students' perceptions of laboratory science careers: changing ideas with an education module.

PubMed

Haun, Daniel; Leach, Argie; Lawrence, Louann; Jarreau, Patsy

2005-01-01

To assess the effectiveness of a Web-based education module in changing students' perceptions of laboratory science careers. Perception was measured with a short examination and then a Web-based exercise was presented. Following the exercise, the test was administered again. Frequency data from the pre-test and post-test were compared for changes in perception. The correlated pre-test/post-test pairs were also examined for opinion changes and these were analyzed for significance. Large parochial high schools in New Orleans, Louisiana. A small team visited the schools during their appointed class times for biology. Study participants were high school biology students in grades 9-10. Two-hundred-forty-five students participated (149 male and 96 female). A Web-based exercise on blood film examination was presented to the students in a classroom setting (www.mclno.org/labpartners/index_03.htm). The exercise contained focused messages about: (1) the numbers of healthcare workers acquiring AIDS from on-the-job exposure and (2) common career paths available to the laboratory science workforce. The shift in perception of: What medical service generates the most diagnostic data. Which professional group performs laboratory tests. The risk of acquiring AIDS while working in the healthcare setting. Interest in a science-related career. How much education is required to work in a science-related field. The intervention significantly shifted perception in all areas measured except that of interest in a science-related career. Many students perceive that the risk of acquiring AIDS while working in the healthcare setting is "high". Web-based presentations and similar partnerships with science teachers can change perceptions that might lead to increased interest in clinical laboratory science careers.
Simple and rapid system for two-dimensional gel electrophoresis technique: A laboratory exercise for high school students.

PubMed

Maurye, Praveen; Basu, Arpita; Biswas, Jayanta Kumar; Bandyopadhyay, Tapas Kumar; Naskar, Malay

2018-02-28

Polyacrylamide gel electrophoresis (PAGE) is the most classical technique favored worldwide for resolution of macromolecules in many biochemistry laboratories due to its incessant advanced developments and wide modifications. These ever-growing advancements in the basic laboratory equipments lead to emergence of many expensive, complex, and tricky laboratory equipments. Practical courses of biochemistry at high school or undergraduate levels are often affected by these complications. Two dimensional gel electrophoresis technique (2D-PAGE) used for resolving thousands of proteins in a gel is a combination of isoelectric focusing (first dimension gel electrophoresis technique) and sodium-dodecylsulphate PAGE (second dimension gel electrophoresis technique or SDS-PAGE). Two different laboratory equipments are needed to carry out effective 2D-PAGE technique, which also invites extra burden to the school laboratory. Here, we describe a low cost, time saving and simple gel cassette for protein 2D-PAGE technique that uses easily fabricated components and routine off-the-shelf materials. The performance of the apparatus was verified in a practical exercise by a group of high school students with positive outcomes. © 2018 by The International Union of Biochemistry and Molecular Biology, 2018. © 2018 The International Union of Biochemistry and Molecular Biology.
Students' motivation toward laboratory work in physiology teaching.

PubMed

Dohn, Niels Bonderup; Fago, Angela; Overgaard, Johannes; Madsen, Peter Teglberg; Malte, Hans

2016-09-01

The laboratory has been given a central role in physiology education, and teachers report that it is motivating for students to undertake experimental work on live animals or measuring physiological responses on the students themselves. Since motivation is a critical variable for academic learning and achievement, then we must concern ourselves with questions that examine how students engage in laboratory work and persist at such activities. The purpose of the present study was to investigate how laboratory work influences student motivation in physiology. We administered the Lab Motivation Scale to assess our students' levels of interest, willingness to engage (effort), and confidence in understanding (self-efficacy). We also asked students about the role of laboratory work for their own learning and their experience in the physiology laboratory. Our results documented high levels of interest, effort, and self-efficacy among the students. Correlation analyses were performed on the three motivation scales and exam results, yet a significant correlation was only found between self-efficacy in laboratory work and academic performance at the final exam. However, almost all students reported that laboratory work was very important for learning difficult concepts and physiological processes (e.g., action potential), as the hands-on experiences gave a more concrete idea of the learning content and made the content easier to remember. These results have implications for classroom practice as biology students find laboratory exercises highly motivating, despite their different personal interests and subject preferences. This highlights the importance of not replacing laboratory work by other nonpractical approaches, for example, video demonstrations or computer simulations. Copyright © 2016 The American Physiological Society.
Witnessing Evolution First Hand: A K-12 Laboratory Exercise in Genetics & Evolution Using "Drosophila"

ERIC Educational Resources Information Center

Heil, Caiti S. S.; Manzano-Winkler, Brenda; Hunter, Mika J.; Noor, Juliet K. F.; Noor, Mohamed A. F.

2013-01-01

We present a laboratory exercise that leverages student interest in genetics to observe and understand evolution by natural selection. Students begin with white-eyed fruit fly populations, to which they introduce a single advantageous variant (one male with red eyes). The superior health and vision associated with having the red-eye-color allele…

Implementation of a Parameterization Framework for Cybersecurity Laboratories

DTIC Science & Technology

2017-03-01

designer of laboratory exercises with tools to parameterize labs for each student , and automate some aspects of the grading of laboratory exercises. A...is to provide the designer of laboratory exercises with tools to parameterize labs for each student , and automate some aspects of the grading of...support might assist the designer of laboratory exercises to achieve the following? 1. Verify that students performed lab exercises, with some
A Laboratory Exercise Using a Physical Model for Demonstrating Countercurrent Heat Exchange

ERIC Educational Resources Information Center

Loudon, Catherine; Davis-Berg, Elizabeth C.; Botz, Jason T.

2012-01-01

A physical model was used in a laboratory exercise to teach students about countercurrent exchange mechanisms. Countercurrent exchange is the transport of heat or chemicals between fluids moving in opposite directions separated by a permeable barrier (such as blood within adjacent blood vessels flowing in opposite directions). Greater exchange of…
Reassigning the Structures of Natural Products Using NMR Chemical Shifts Computed with Quantum Mechanics: A Laboratory Exercise

ERIC Educational Resources Information Center

Palazzo, Teresa A.; Truong, Tiana T.; Wong, Shirley M. T.; Mack, Emma T.; Lodewyk, Michael W.; Harrison, Jason G.; Gamage, R. Alan; Siegel, Justin B.; Kurth, Mark J.; Tantillo, Dean J.

2015-01-01

An applied computational chemistry laboratory exercise is described in which students use modern quantum chemical calculations of chemical shifts to assign the structure of a recently isolated natural product. A pre/post assessment was used to measure student learning gains and verify that students demonstrated proficiency of key learning…
"Chips with Everything": A Laboratory Exercise for Comparing Subjective and Objective Measurements of Potato Chips

ERIC Educational Resources Information Center

Davies, Cathy

2005-01-01

The following laboratory exercise was designed to aid student understanding of the differences between subjective and objective measurements. Students assess the color and texture of different varieties of potato chip (crisps) by means of an intensity rating scale and a rank test and objectively with a colorimeter and texture analyzer. For data…
A Severe Weather Laboratory Exercise for an Introductory Weather and Climate Class Using Active Learning Techniques

ERIC Educational Resources Information Center

Grundstein, Andrew; Durkee, Joshua; Frye, John; Andersen, Theresa; Lieberman, Jordan

2011-01-01

This paper describes a new severe weather laboratory exercise for an Introductory Weather and Climate class, appropriate for first and second year college students (including nonscience majors), that incorporates inquiry-based learning techniques. In the lab, students play the role of meteorologists making forecasts for severe weather. The…
Psychological determinants of exercise behavior of nursing students.

PubMed

Chan, Joanne Chung-Yan

2014-01-01

Though expected to be role models in health promotion, research has shown that nursing students often have suboptimal exercise behavior. This study explored the psychological factors associated with the exercise behavior of nursing students. A total of 195 first-year undergraduate nursing students completed a cross-sectional quantitative survey questionnaire, which included measures of their exercise behavior, the Physical Exercise Self-efficacy Scale, and the Exercise Barriers/Benefits Scale. The results showed that male students spent more time exercising and had higher exercise self-efficacy compared with female students, but there were no gender differences in the perceived barriers to or benefits of exercise. Fatigue brought on by exercising was the greatest perceived barrier to exercise, whereas increasing physical fitness and mental health were the greatest perceived benefits of exercise. Multiple linear regression showed that gender, exercise self-efficacy, perceived barriers to exercise, and perceived benefits of exercise were independent predictors of exercise behavior. Nurse educators can endeavor to promote exercise behavior among nursing students by highlighting the specific benefits of exercise, empowering students to overcome their perceived barriers to exercise, and enhancing students' exercise self-efficacy.
Astronomy Laboratory Exercise on Olbers’ Paradox and the Age of the Universe

NASA Astrophysics Data System (ADS)

Glazer, Kelsey Samantha; Edwards, Charlotte; Overduin, James; Storrs, Alex

2018-01-01

We describe the development of a new laboratory exercise for undergraduate introductory astronomy courses. Students begin by estimating the intensity of the extragalactic background light using a simple Newtonian cosmological model that agrees with recent measurements to within a factor of two. They then use the 0.5m Towson University telescope to image a dark patch of sky such as the Hubble Deep Field near or during new Moon, and compare the intensity actually observed with that predicted. This comparison leads to a new appreciation of foreground contributions such as light pollution, airglow, zodiacal light, starlight and others. Students pick up important skills in uncertainty analysis and astronomical unit conversion. But the most valuable aspect of the exercise in our view is that it enables students to draw a direct connection between the evidence of their own eyes and the age of the Universe.
SOLAR ROTATION: A Laboratory Exercise from Project CLEA and the GONG Project

NASA Astrophysics Data System (ADS)

Marschall, L. A.; Sudol, J. J.; Snyder, G. A.

2002-12-01

Digital images from the GONG Project provide a nearly continuous record of sunspots that are ideal for determining the rate of rotation of the Sun. A new laboratory exercise from Project CLEA provides students with the capability to access an archive of 368 images of the Sun obtained at GONG solar telescopes between January 1, 2002 and April 30, 2002, during a period near solar maximum when large numbers of spots were daily visible on the sun. The resolution of each image is about 2.5 arcsec per pixel (or about 0.25 degree in longitude and latitude at the center of the solar disk). Because these images have such exquisite spatial and temporal resolution, they are the best images to date from which students can determine the solar rotation rate. CLEA software for this exercise allows students to select images by date and time, to overlay a coordinate grid on the image, and to record the latitudes and longitudes of sunspots. This data can be tabulated and analyzed with the software to determine solar rotation rates. The expected precision in the solar rotation rates is +/- 3 hours. Students will also have the ability to combine their chosen images into a digital movie showing the solar rotation. The exercise includes a student workbook and a technical manual, as well as a CD-rom of the data and the software. This exercise was produced with funding from the National Science Foundation and Gettysburg College and with the support of the GONG Project at the National Solar Observatory.
The Effectiveness of Hands-on Health Informatics Skills Exercises in the Multidisciplinary Smart Home Healthcare and Health Informatics Training Laboratories.

PubMed

Sapci, A H; Sapci, H A

2017-10-01

This article aimed to evaluate the effectiveness of newly established innovative smart home healthcare and health informatics laboratories, and a novel laboratory course that focuses on experiential health informatics training, and determine students' self-confidence to operate wireless home health monitoring devices before and after the hands-on laboratory course. Two web-based pretraining and posttraining questionnaires were sent to 64 students who received hands-on training with wireless remote patient monitoring devices in smart home healthcare and health informatics laboratories. All 64 students completed the pretraining survey (100% response rate), and 49 students completed the posttraining survey (76% response rate). The quantitative data analysis showed that 95% of students had an interest in taking more hands-on laboratory courses. Sixty-seven percent of students had no prior experience with medical image, physiological data acquisition, storage, and transmission protocols. After the hands-on training session, 75.51% of students expressed improved confidence about training patients to measure blood pressure monitor using wireless devices. Ninety percent of students preferred to use a similar experiential approach in their future learning experience. Additionally, the qualitative data analysis demonstrated that students were expecting to have more courses with hands-on exercises and integration of technology-enabled delivery and patient monitoring concepts into the curriculum. This study demonstrated that the multidisciplinary smart home healthcare and health informatics training laboratories and the hands-on exercises improved students' technology adoption rates and their self-confidence in using wireless patient monitoring devices. Schattauer GmbH Stuttgart.
Potato Types and Characteristics: Laboratory Exercises.

ERIC Educational Resources Information Center

Pavlista, Alexander D.

1997-01-01

Presents a number of simple exercises that demonstrate potato tuber characteristics and are designed for high school biology students and teachers. Exercises include Typing, Grading, Shape, Eye Characteristics, Defects, Specific Gravity, Dry Matter Content, Glucose Content, Baking, Frying/Chipping, and Taste Testing. (JRH)
Problem-Based Learning and Creative Instructional Approaches for Laboratory Exercises in Introductory Crop Science

ERIC Educational Resources Information Center

Teplitski, Max; McMahon, Margaret J.

2006-01-01

The implementation of problem-based learning (PBL) and other inquiry-driven educational techniques is often resisted by both faculty and students, who may not be comfortable with this learning/instructional style. We present here a hybrid approach, which combines elements of expository education with inquiry-driven laboratory exercises and…
The Timing of an Experiment in the Laboratory Program Is Crucial for the Student Laboratory Experience: Acylation of Ferrocene as a Case Study

ERIC Educational Resources Information Center

Southam, Daniel C.; Shand, Bradley; Buntine, Mark A.; Kable, Scott H.; Read, Justin R.; Morris, Jonathan C.

2013-01-01

An assessment of the acylation of ferrocene laboratory exercise across three successive years resulted in a significant fluctuation in student perception of the experiment. This perception was measured by collecting student responses to an instrument immediately after the experiment, which includes Likert and open-ended responses from the student.…
Coupling Molecular Modeling to the Traditional "IR-ID" Exercise in the Introductory Organic Chemistry Laboratory

ERIC Educational Resources Information Center

Stokes-Huby, Heather; Vitale, Dale E.

2007-01-01

This exercise integrates the infrared unknown identification ("IR-ID") experiment common to most organic laboratory syllabi with computer molecular modeling. In this modification students are still required to identify unknown compounds from their IR spectra, but must additionally match some of the absorptions with computed frequencies they…
Evaluation of the Virtual Physiology of Exercise Laboratory Program

ERIC Educational Resources Information Center

Dobson, John L.

2009-01-01

The Virtual Physiology of Exercise Laboratory (VPEL) program was created to simulate the test design, data collection, and analysis phases of selected exercise physiology laboratories. The VPEL program consists of four modules: (1) cardiovascular, (2) maximal O[subscript 2] consumption [Vo[subscript 2max], (3) lactate and ventilatory thresholds,…
Particle in a Disk: A Spectroscopic and Computational Laboratory Exercise Studying the Polycyclic Aromatic Hydrocarbon Corannulene

ERIC Educational Resources Information Center

Frey, E. Ramsey; Sygula, Andrzej; Hammer, Nathan I.

2014-01-01

This laboratory exercise introduces undergraduate chemistry majors to the spectroscopic and theoretical study of the polycyclic aromatic hydrocarbon (PAH), corannulene. Students explore the spectroscopic properties of corannulene using UV-vis and Raman vibrational spectroscopies. They compare their experimental results to simulated vibrational…
Thermoreception and nociception of the skin: a classic paper of Bessou and Perl and analyses of thermal sensitivity during a student laboratory exercise.

PubMed

Kuhtz-Buschbeck, Johann P; Andresen, Wiebke; Göbel, Stephan; Gilster, René; Stick, Carsten

2010-06-01

About four decades ago, Perl and collaborators were the first ones who unambiguously identified specifically nociceptive neurons in the periphery. In their classic work, they recorded action potentials from single C-fibers of a cutaneous nerve in cats while applying carefully graded stimuli to the skin (Bessou P, Perl ER. Response of cutaneous sensory units with unmyelinated fibers to noxious stimuli. J Neurophysiol 32: 1025-1043, 1969). They discovered polymodal nociceptors, which responded to mechanical, thermal, and chemical stimuli in the noxious range, and differentiated them from low-threshold thermoreceptors. Their classic findings form the basis of the present method that undergraduate medical students experience during laboratory exercises of sensory physiology, namely, quantitative testing of the thermal detection and pain thresholds. This diagnostic method examines the function of thin afferent nerve fibers. We collected data from nearly 300 students that showed that 1) women are more sensitive to thermal detection and thermal pain at the thenar than men, 2) habituation shifts thermal pain thresholds during repetititve testing, 3) the cold pain threshold is rather variable and lower when tested after heat pain than in the reverse case (order effect), and 4) ratings of pain intensity on a visual analog scale are correlated with the threshold temperature for heat pain but not for cold pain. Median group results could be reproduced in a retest. Quantitative sensory testing of thermal thresholds is feasible and instructive in the setting of a laboratory exercise and is appreciated by the students as a relevant and interesting technique.
Why Is That Dog Paralyzed? A Problem-Based Case & Laboratory Exercise about Neuromuscular Transmission

ERIC Educational Resources Information Center

Milanick, Mark; Graham, Kerri; Wessel, Melissa

2013-01-01

Students are provided with a mystery concerning dogs that are paralyzed. This motivates a laboratory exercise to measure parameters from the dog's "blood" to determine whether the paralysis is due to pesticide poisoning or an autoimmune attack on nerve myelin. Most of the materials are available from the grocery store. The real-world nature of the…
Video laboratories for the teaching and learning of professional ethics in exercise physiology curricula.

PubMed

Senchina, David S

2011-09-01

Student researchers in physiology courses often interact with human subjects in classroom research but may be unfamiliar with the professional ethics of experimenter-subject interactions. This communication describes experiences related to an interactive video used in exercise science and general biology courses to help students become aware of, sensitive to, and comfortable with implementing professional ethics into their own thinking and behavior as researchers before entering the laboratory. The activity consisted of a filmed exercise physiology experiment complemented with interactive question sheets followed by small- and large-group discussion and culminating with individual student reflections. Student written responses from multiple courses indicated that students were able to 1) identify and consider the ethics of experimenter-subject interactions from the movie, 2) generalize broader ideas of professional ethics from those observations, and 3) consider their observations in terms of future experiments they would be conducting personally and how they should interact with human subjects. A majority of students indicated a positive reaction to the video and identified specific aspects they appreciated. It is hoped that this report will encourage other instructors to consider the use of interactive videos in the teaching and learning of professional ethics related to their courses.
Forming of science teacher thinking through integrated laboratory exercises

NASA Astrophysics Data System (ADS)

Horváthová, Daniela; Rakovská, Mária; Zelenický, Ä½ubomír

2017-01-01

Within the three-semester optional course Science we have also included into curricula the subject entitled Science Practicum consisting of laboratory exercises of complementary natural scientific disciplines whose content exceeds the boundaries of relevant a scientific discipline (physics, biology, …). The paper presents the structure and selected samples of laboratory exercises of physical part of Science Practicum in which we have processed in an integrated way the knowledge of physics and biology at secondary grammar school. When planning the exercises we have proceeded from those areas of mentioned disciplines in which we can appropriately apply integration of knowledge and where the measurement methods are used. We have focused on the integration of knowledge in the field of human sensory organs (eye, ear), dolphins, bats (spatial orientation) and bees (ommatidium of faceted eye) and their modelling. Laboratory exercises are designed in such a way that they would motivate future teachers of natural scientific subjects to work independently with specialized literature of the mentioned natural sciences and ICT.
Modernisation of the intermediate physics laboratory

NASA Astrophysics Data System (ADS)

Kontro, Inkeri; Heino, Olga; Hendolin, Ilkka; Galambosi, Szabolcs

2018-03-01

The intermediate laboratory courses at the Department of Physics, University of Helsinki, were reformed using desired learning outcomes as the basis for design. The reformed laboratory courses consist of weekly workshops and small-group laboratory sessions. Many of the laboratory exercises are open-ended and have several possible ways of execution. They were designed around affordable devices, to allow for the purchase of multiple sets of laboratory equipment. This allowed students to work on the same problems simultaneously. Thus, it was possible to set learning goals which build on each other. Workshop sessions supported the course by letting the students solve problems related to conceptual and technical aspects of each laboratory exercise. The laboratory exercises progressed biweekly to allow for iterative problem solving. Students reached the learning goals well and the reform improved student experiences. Neither positive or negative changes in expert-like attitudes towards experimental physics (measured by E-CLASS questionnaire) were observed.

A Mixed Learning Approach to Integrating Digital Signal Processing Laboratory Exercises into a Non-Lab Junior Year DSP Course

ERIC Educational Resources Information Center

McPheron, Benjamin D.; Thangaraj, Charles V.; Thomas, Charles R.

2017-01-01

Laboratory courses can be difficult to fit into an engineering program at a liberal arts-focused university, which requires students to be exposed to appropriate breadth, as well as sufficient depth in their engineering education. One possible solution to this issue is to integrate laboratory exercises with lecture in a "studio" format,…
Public Policy and Private Enterprise in the Development of Flood Plains: A Laboratory Exercise in Physical Geography

ERIC Educational Resources Information Center

Nunnally, Nelson R.; And Others

1974-01-01

This activity is designed to introduce college students to the concept of floods as natural hazards, to flood frequency analysis, to hazard adjustment, and to the mechanics of public policy formulation through a six hour laboratory exercise, culminating in a simulation game. (JH)
Virtual Laboratories in Science Education: Students' Motivation and Experiences in Two Tertiary Biology Courses

ERIC Educational Resources Information Center

Dyrberg, Nadia Rahbek; Treusch, Alexander H.; Wiegand, Claudia

2017-01-01

Potential benefits of simulations and virtual laboratory exercises in natural sciences have been both theorised and studied recently. This study reports findings from a pilot study on student attitude, motivation and self-efficacy when using the virtual laboratory programme Labster. The programme allows interactive learning about the workflows and…
Different Cells Make Different Proteins: A Laboratory Exercise Illustrating Tissue-Specific Protein Expression in Animals

ERIC Educational Resources Information Center

Ibarguren, Izaskun; Villamarín, Antonio

2017-01-01

All the cells of higher organisms have the same DNA but not the same proteins. Each type of specialised cell that forms a tissue has its own pattern of gene expression and, consequently, it contains a particular set of proteins that determine its function. Here, we describe a laboratory exercise addressed to undergraduate students that aims to…
Exercise for falls prevention in older people: assessing the knowledge of exercise science students.

PubMed

Sturnieks, Daina L; Finch, Caroline F; Close, Jacqueline C T; Tiedemann, Anne; Lord, Stephen R; Pascoe, Deborah A

2010-01-01

Participation in appropriate exercise can help reduce the risk of falls and falls injury in older people. Delivery of population-level exercise interventions requires an expert workforce with skills in development and delivery of group exercise programs and prescription of individually targeted exercise. This study assessed the current knowledge of university exercise science students (as future exercise professionals) across different levels of study. A structured survey designed to assess knowledge in relation to falls in older people and exercise prescription for falls prevention was administered during second, third and fourth year lectures in seven Australian universities. Students' knowledge was assessed as the percent of correct responses. Overall, 566 students completed the survey and knowledge levels increased significantly with study year. Mean knowledge levels were significantly <70%, indicating limited knowledge. They were lowest for falls risk factor questions and highest for issue/cost related questions in second and third year students. Fourth year students had best knowledge about falls interventions and this was the only group and topic with a mean score >70%. In conclusion, knowledge about falls and exercise prescription for falls prevention in current students does not meet a desired competency level of 70% and is therefore insufficient to ensure an adequately equipped future workforce in this area. There is a clear need for the development and widespread delivery of an evidence-based "exercise for falls prevention" curriculum module for exercise professionals. Copyright (c) 2009 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.
Laboratory exercises, remote sensing of the environment

NASA Technical Reports Server (NTRS)

Mintzer, O.; Ray, J.

1981-01-01

The exercises are designed to convey principles and theory of remote sensing, and methodologies of its application to civil engineering and environmental concerns, including agronomy, geography, geology, wildlife, forestry, hydrology, and other related fields. During the exercises the student is introduced to several types of remote sensing represented by imagery from conventional format: panchromatic, black-and-white infrared, color, and infrared, 35mm aerial photography, thermal infrared, radar, multispectral scanner, and LANDSAT. Upon completion of the exercises the student is expected to know: (1) the electromagnetic spectrum, its various wavelength sub-sections and their uses as sensors, (2) the limitations of each sensor, (3) the interpretation techniques used for extracting data from the various types of imagery, and (4) the cost effectiveness of remote sensing procedures for acquiring and evaluating data of the natural environment.
Laboratory Exercise to Evaluate Hay Preservatives.

ERIC Educational Resources Information Center

McGraw, R. L.; And Others

1990-01-01

Presented is a laboratory exercise designed to demonstrate the effects of moisture on hay preservation products in a manner that does not require large amounts of equipment or instructor time. Materials, procedures, and probable results are discussed. (CW)
Asking the Next Generation: The Implementation of Pre-University Students' Ideas about Physics Laboratory Preparation Exercises

ERIC Educational Resources Information Center

Dunnett, K.; Bartlett, P. A.

2018-01-01

It was planned to introduce online pre-laboratory session activities to a first-year undergraduate physics laboratory course to encourage a minimum level of student preparation for experiments outside the laboratory environment. A group of 16 and 17 year old laboratory work-experience students were tasked to define and design a pre-laboratory…
Introductory Archaeology: The Inexpensive Laboratory.

ERIC Educational Resources Information Center

Rice, Patricia C.

1990-01-01

Describes a number of student-focused laboratory exercises that are inexpensive, yet show the scientific character of archaeology. Describes the environmental laboratory exercise which includes the following analysis topics: (1) pollen; (2) earth core; (3) microfaunal; and (4) microwear. Describes the ceramic laboratory which involves…
Inter-laboratory exercise on antibiotic drugs analysis in aqueous samples.

PubMed

Roig, B; Brogat, M; Mompelat, S; Leveque, J; Cadiere, A; Thomas, O

2012-08-30

An inter-laboratory exercise was organized under the PHARMAS EU project, by the Advanced School of Public Health (EHESP), in order to evaluate the performances of analytical methods for the measurement of antibiotics in waters (surface and tap). This is the first time such an exercise on antibiotics has been organized in Europe, using different kinds of analytical methods and devices. In this exercise thirteen laboratories from five countries (Canada, France, Italy, the Netherlands and Portugal) participated, and a total number of 78 samples were distributed. During the exercise, 2 testing samples (3 bottles of each) prepared from tap water and river water, respectively, spiked with antibiotics, were sent to participants and analyzed over a period of one month. A final number of 77 (98.7%) testing samples were considered. Depending on substances studied by each participant, 305 values in duplicate were collected, with the results for each sample being expressed as the target concentration. A statistical study was initiated using 611 results. The mean value, standard deviation, coefficient of variation, standard uncertainty of the mean, median, the minimum and maximum values of each series as well as the 95% confidence interval were obtained from each participant laboratory. In this exercise, 36 results (6% of accounted values) were outliers according to the distribution over the median (box plot). The outlier results were excluded. In order to establish the stability of testing samples in the course of the exercise, differences between variances obtained for every type of sample at different intervals were evaluated. The results showed no representative variations and it can be considered that all samples were stable during the exercise. The goals of this inter-laboratory study were to assess results variability when analysis is conducted by different laboratories, to evaluate the influence of different matrix samples, and to determine the rate at which
Kinetics of Carbaryl Hydrolysis: An Undergraduate Environmental Chemistry Laboratory

ERIC Educational Resources Information Center

Hawker, Darryl

2015-01-01

Kinetics is an important part of undergraduate environmental chemistry curricula and relevant laboratory exercises are helpful in assisting students to grasp concepts. Such exercises are also useful in general chemistry courses because students can see relevance to real-world issues. The laboratory exercise described here involves determination of…
A Statistical Analysis of Student Questions in a Cell Biology Laboratory

ERIC Educational Resources Information Center

Keeling, Elena L.; Polacek, Kelly M.; Ingram, Ella L.

2009-01-01

Asking questions is an essential component of the practice of science, but question-asking skills are often underemphasized in science education. In this study, we examined questions written by students as they prepared for laboratory exercises in a senior-level cell biology class. Our goals were to discover 1) what types of questions students…
An Undergraduate Laboratory Exercise for Studying Kinetics of Batch Crystallization

ERIC Educational Resources Information Center

Louhi-Kultanen, Marjatta; Han, Bing; Nurkka, Annikka; Hatakka, Henry

2015-01-01

The present work describes an undergraduate laboratory exercise for improving understanding of fundamental phenomena in cooling crystallization. The exercise of nucleation and crystal growth kinetics supports learning of theories and models presented in lectures and calculation exercises. The teaching methodology incorporates precepts the…
Pencil-and-Paper Neural Networks: An Undergraduate Laboratory Exercise in Computational Neuroscience

PubMed Central

Crisp, Kevin M.; Sutter, Ellen N.; Westerberg, Jacob A.

2015-01-01

Although it has been more than 70 years since McCulloch and Pitts published their seminal work on artificial neural networks, such models remain primarily in the domain of computer science departments in undergraduate education. This is unfortunate, as simple network models offer undergraduate students a much-needed bridge between cellular neurobiology and processes governing thought and behavior. Here, we present a very simple laboratory exercise in which students constructed, trained and tested artificial neural networks by hand on paper. They explored a variety of concepts, including pattern recognition, pattern completion, noise elimination and stimulus ambiguity. Learning gains were evident in changes in the use of language when writing about information processing in the brain. PMID:26557791
Interpreting Assessments of Student Learning in the Introductory Physics Classroom and Laboratory

NASA Astrophysics Data System (ADS)

Dowd, Jason Edward

Assessment is the primary means of feedback between students and instructors. However, to effectively use assessment, the ability to interpret collected information is essential. We present insights into three unique, important avenues of assessment in the physics classroom and laboratory. First, we examine students' performance on conceptual surveys. The goal of this research project is to better utilize the information collected by instructors when they administer the Force Concept Inventory (FCI) to students as a pre-test and post-test of their conceptual understanding of Newtonian mechanics. We find that ambiguities in the use of the normalized gain, g, may influence comparisons among individual classes. Therefore, we propose using stratagrams, graphical summaries of the fraction of students who exhibit "Newtonian thinking," as a clearer, more informative method of both assessing a single class and comparing performance among classes. Next, we examine students' expressions of confusion when they initially encounter new material. The goal of this research project is to better understand what such confusion actually conveys to instructors about students' performance and engagement. We investigate the relationship between students' self-assessment of their confusion over material and their performance, confidence in reasoning, pre-course self-efficacy and several other measurable characteristics of engagement. We find that students' expressions of confusion are negatively related to initial performance, confidence and self-efficacy, but positively related to final performance when all factors are considered together. Finally, we examine students' exhibition of scientific reasoning abilities in the instructional laboratory. The goal of this research project is to explore two inquiry-based curricula, each of which proposes a different degree of scaffolding. Students engage in sequences of these laboratory activities during one semester of an introductory physics
Competitive Phylogenetics: A Laboratory Exercise

ERIC Educational Resources Information Center

McCabe, Declan J.

2014-01-01

This exercise demonstrates the principle of parsimony in constructing cladograms. Although it is designed using mammalian cranial characters, the activity could be adapted for characters from any group of organisms. Students score categorical traits on skulls and record the data in a spreadsheet. Using the Mesquite software package, students…
Using Mobile Devices for Motor-Learning Laboratory Exercises

ERIC Educational Resources Information Center

Hill, Kory

2014-01-01

When teaching motor-learning concepts, laboratory experiments can be valuable tools for promoting learning. In certain circumstances, traditional laboratory exercises are often impractical due to facilities, time, or cost. Inexpensive or free applications (apps) that run on mobile devices can serve as useful alternatives. This article details…
Development of a Laboratory Project to Determine Human ABO Genotypes--Limitations Lead to Further Student Explorations

ERIC Educational Resources Information Center

Salerno, Theresa A.

2009-01-01

A multiplex allele-specific PCR analysis was developed to identify six "common" genotypes: AA, AO, BB, BO, OO, and AB. This project included a pre-laboratory exercise that provided active learning experiences and developed critical thinking skills. This laboratory resulted in many successful analyses, which were verified by student knowledge of…
Assessing a traditional case-based application exercise and a student question creation exercise on student performance and perceptions.

PubMed

Tatachar, Amulya; Kominski, Carol

2017-07-01

To compare the impact of a traditional case-based application exercise with a student question creation exercise on a) student exam performance, b) student perceptions of enjoyment, competence, understanding, effort, interest in continuing participation, and interest in the subject. Subjects were 84 second-year pharmacy students in a pharmacotherapy course. The research focus was active learning involving the topic of chronic kidney disease-mineral bone disorder. Student teams were randomly assigned to either case-based or student question creation exercises using PeerWise. Student performance was assessed by a pre- and posttest and on block and final exams. After completion, an online survey assessed student perceptions of both exercises. Statistically significant differences were revealed in favor of the student question creation group on enjoyment and interest in the subject matter. No statistically differences were found between the traditional case-based group and the student question creation group on gain score from pre-test to posttest. The student question creation group performed slightly better than the case-based application group on two of the five questions on the block exam but none of these differences reached statistical significance. Students randomly assigned to groups that created and reviewed questions exhibited slightly improved summative exam performance and reported significantly more positive perceptions than students engaging in a more traditional case-based learning activity. Student question creation has demonstrated potential as a useful learning activity. Despite inherent difficulties in designing studies involving educational research in a controlled environment, students who have submitted, created, rated, and answered peers' questions have overall performed well. Copyright © 2017 Elsevier Inc. All rights reserved.
Effective Laboratory Experiences for Students with Disabilities: The Role of a Student Laboratory Assistant

NASA Astrophysics Data System (ADS)

Pence, Laura E.; Workman, Harry J.; Riecke, Pauline

2003-03-01

Two separate experiences with students whose disabilities significantly limited the number of laboratory activities they could accomplish independently has given us a general experience base for determining successful strategies for accommodating students facing these situatiuons. For a student who had substantially limited physical mobility and for a student who had no visual ability, employing a student laboratory assistant allowed the students with disabilities to have a productive and positive laboratory experience. One of the priorities in these situations should be to avoid depersonalizing the student with a disability. Interactions with the instructor and with other students should focus on the disabled student rather than the student laboratory assistant who may be carrying out specific tasks. One of the most crucial aspects of a successful project is the selection of a laboratory assistant who has excellent interpersonal skills and who will add his or her creativity to that of the student with a disability to meet unforeseen challenges. Other considerations are discussed, such as the importance of advance notification that a disabled student has enrolled in a course as well as factors that should contribute to choosing an optimum laboratory station for each situation.

Musk as a Pheromone? Didactic Exercise.

ERIC Educational Resources Information Center

Bersted, Chris T.

A classroom/laboratory exercise has been used to introduce college students to factorial research designs, differentiate between interpretations for experimental and quasi-experimental variables, and exemplify application of laboratory research methods to test practical questions (advertising claims). The exercise involves having randomly divided…
A Laboratory Exercise to Understand the Importance of Enzyme Technology in the Fruit-Processing Industry: Viscosity Decrease and Phenols Release from Apple Mash

ERIC Educational Resources Information Center

Pinelo, Manuel; Nielsen, Michael K.; Meyer, Anne S.

2011-01-01

In a 4-h laboratory exercise, students accomplish a series of enzymatic macerations of apple mash, assess the viscosity of the mash during the maceration, extract the juice by centrifugation, and measure the levels of antioxidant phenols extracted into the juice after different enzyme treatments. The exercise shows the impact of enzyme-catalyzed…
Virtual lab demonstrations improve students' mastery of basic biology laboratory techniques.

PubMed

Maldarelli, Grace A; Hartmann, Erica M; Cummings, Patrick J; Horner, Robert D; Obom, Kristina M; Shingles, Richard; Pearlman, Rebecca S

2009-01-01

Biology laboratory classes are designed to teach concepts and techniques through experiential learning. Students who have never performed a technique must be guided through the process, which is often difficult to standardize across multiple lab sections. Visual demonstration of laboratory procedures is a key element in teaching pedagogy. The main goals of the study were to create videos explaining and demonstrating a variety of lab techniques that would serve as teaching tools for undergraduate and graduate lab courses and to assess the impact of these videos on student learning. Demonstrations of individual laboratory procedures were videotaped and then edited with iMovie. Narration for the videos was edited with Audacity. Undergraduate students were surveyed anonymously prior to and following screening to assess the impact of the videos on student lab performance by completion of two Participant Perception Indicator surveys. A total of 203 and 171 students completed the pre- and posttesting surveys, respectively. Statistical analyses were performed to compare student perceptions of knowledge of, confidence in, and experience with the lab techniques before and after viewing the videos. Eleven demonstrations were recorded. Chi-square analysis revealed a significant increase in the number of students reporting increased knowledge of, confidence in, and experience with the lab techniques after viewing the videos. Incorporation of instructional videos as prelaboratory exercises has the potential to standardize techniques and to promote successful experimental outcomes.
Social Physique Anxiety, Obligation to Exercise, and Exercise Choices among College Students

ERIC Educational Resources Information Center

Chu, Hui-Wen; Bushman, Barbara A.; Woodard, Rebecca J.

2008-01-01

Objective: The authors examined relationships among social physique anxiety, obligation to exercise, and exercise choices. Participants and Methods: College students (N = 337; 200 women, 137 men) volunteered to complete 3 questionnaires: the Social Physique Anxiety Scale (SPAS), Obligatory Exercise Questionnaire (OEQ), and Physical Activity…
Student research laboratory for optical engineering

NASA Astrophysics Data System (ADS)

Tolstoba, Nadezhda D.; Saitgalina, Azaliya; Abdula, Polina; Butova, Daria

2015-10-01

Student research laboratory for optical engineering is comfortable place for student's scientific and educational activity. The main ideas of laboratory, process of creation of laboratory and also activity of laboratory are described in this article. At ITMO University in 2013-2014 were formed a lot of research laboratories. SNLO is a student research (scientific) laboratory formed by the Department of Applied and computer optics of the University ITMO (Information Technologies of Mechanics and Optics). Activity of laboratory is career guidance of entrants and students in the field of optical engineering. Student research laboratory for optical engineering is a place where student can work in the interesting and entertaining scientific atmosphere.
Effect of an Exercise and Weight Control Curriculum: Views of Obesity among Exercise Science Students

ERIC Educational Resources Information Center

Richardson, Laura A.; Fister, Carrie L.; Ramlo, Susan E.

2015-01-01

Awareness of effective weight management strategies is necessary to prepare exercise science students for future work with obesity. Exercise science faculty members developed a course related to exercise as a therapeutic tool and options available for weight loss. The purpose of the present study was to investigate student views of weight…
Partial polarization: a comprehensive student exercise

NASA Astrophysics Data System (ADS)

Topasna, Gregory A.; Topasna, Daniela M.

2015-10-01

We present a comprehensive student exercise in partial polarization. Students are first introduced to the concept of partial polarization using Fresnel Equations. Next, MATHCAD is used to compute and graph the reflectance for dielectrics materials. The students then design and construct a simple, easy to use collimated light source for their experiment, which is performed on an optical breadboard using optical components typically found in an optics lab above the introductory level. The students obtain reflection data that is compared with their model by a nonlinear least square fit using EXCEL. Sources of error and uncertainty are discussed and students present a final written report. In this one exercise students learn how an experiment is constructed "from the ground up". They gain practical experience on data modeling and analysis, working with optical equipment, machining and construction, and preparing a final presentation.
Developing Information Fluency in Introductory Biology Students in the Context of an Investigative Laboratory

ERIC Educational Resources Information Center

Lindquester, Gary J.; Burks, Romi L.; Jaslow, Carolyn R.

2005-01-01

Students of biology must learn the scientific method for generating information in the field. Concurrently, they should learn how information is reported and accessed. We developed a progressive set of exercises for the undergraduate introductory biology laboratory that combine these objectives. Pre- and postassessments of approximately 100…
Preparation of Unconsolidated Sands for Microscopy Laboratory Exercises.

ERIC Educational Resources Information Center

Cameron, Barry; Jones, J. Richard

1988-01-01

Describes a technique of impregnating small amounts of sandy sediment in a quick curing resin for microscopic examination. Details the preparation of materials. Suggests laboratory exercises based on this preparation. (CW)
The Question-Driven Laboratory Exercise: A New Pedagogy Applied to a Green Modification of Grignard Reagent Formation and Reaction

ERIC Educational Resources Information Center

Teixeira, Jennifer M.; Byers, Jessie Nedrow; Perez, Marilu G.; Holman, R. W.

2010-01-01

Experimental exercises within second-year-level organic laboratory manuals typically involve a statement of a principle that is then validated by student generation of data in a single experiment. These experiments are structured in the exact opposite order of the scientific method, in which data interpretation, typically from multiple related…
Kinetics and Photochemistry of Ruthenium Bisbipyridine Diacetonitrile Complexes: An Interdisciplinary Inorganic and Physical Chemistry Laboratory Exercise.

PubMed

Rapp, Teresa L; Phillips, Susan R; Dmochowski, Ivan J

2016-12-13

The study of ruthenium polypyridyl complexes can be widely applied across disciplines in the undergraduate curriculum. Ruthenium photochemistry has advanced many fields including dye-sensitized solar cells, photoredox catalysis, light-driven water oxidation, and biological electron transfer. Equally promising are ruthenium polypyridyl complexes that provide a sterically bulky, photolabile moiety for transiently "caging" biologically active molecules. Photouncaging involves the use of visible (1-photon) or near-IR (2-photon) light to break one or more bonds between ruthenium and coordinated ligand(s), which can occur on short time scales and in high quantum yields. In this work we demonstrate the use of a model "caged" acetonitrile complex, Ru(2,2'-bipyridine) 2 (acetonitrile) 2 , or RuMeCN in an advanced synthesis and physical chemistry laboratory. Students made RuMeCN in an advanced synthesis laboratory course and performed UV-vis spectroscopy and electrochemistry. The following semester students investigated RuMeCN photolysis kinetics in a physical chemistry laboratory. These two exercises may also be combined to create a 2-week module in an advanced undergraduate laboratory course.
Kinetics and Photochemistry of Ruthenium Bisbipyridine Diacetonitrile Complexes: An Interdisciplinary Inorganic and Physical Chemistry Laboratory Exercise

PubMed Central

2016-01-01

The study of ruthenium polypyridyl complexes can be widely applied across disciplines in the undergraduate curriculum. Ruthenium photochemistry has advanced many fields including dye-sensitized solar cells, photoredox catalysis, light-driven water oxidation, and biological electron transfer. Equally promising are ruthenium polypyridyl complexes that provide a sterically bulky, photolabile moiety for transiently “caging” biologically active molecules. Photouncaging involves the use of visible (1-photon) or near-IR (2-photon) light to break one or more bonds between ruthenium and coordinated ligand(s), which can occur on short time scales and in high quantum yields. In this work we demonstrate the use of a model “caged” acetonitrile complex, Ru(2,2′-bipyridine)2(acetonitrile)2, or RuMeCN in an advanced synthesis and physical chemistry laboratory. Students made RuMeCN in an advanced synthesis laboratory course and performed UV–vis spectroscopy and electrochemistry. The following semester students investigated RuMeCN photolysis kinetics in a physical chemistry laboratory. These two exercises may also be combined to create a 2-week module in an advanced undergraduate laboratory course. PMID:28649139
Cross-Disciplinary Thermoregulation and Sweat Analysis Laboratory Experiences for Undergraduate Chemistry and Exercise Science Students

ERIC Educational Resources Information Center

Mulligan, Gregory; Taylor, Nichole; Glen, Mary; Tomlin, Dona; Gaul, Catherine A.

2011-01-01

Cross-disciplinary (CD) learning experiences benefit student understanding of concepts and curriculum by offering opportunities to explore topics from the perspectives of alternate fields of study. This report involves a qualitative evaluation of CD health sciences undergraduate laboratory experiences in which concepts and students from two…
Use of the Herb Gymnema sylvestre to Illustrate the Principles of Gustatory Sensation: An Undergraduate Neuroscience Laboratory Exercise.

PubMed

Schroeder, Joseph A; Flannery-Schroeder, Ellen

2005-01-01

The Indian herb Gymnema sylvestre has been used in traditional Ayurvedic medicine for 2000 years, most recently for the treatment of diabetes. Loose leaf Gymnema sylvestre can be prepared as a tea and will impair the ability to taste sugar by blocking sweet receptors on the tongue. This report describes a laboratory exercise easily applied to an undergraduate neuroscience course that can be used to illustrate the principles of gustatory sensation. Combined with a preceding lecture on the primary taste sensations, students experience and appreciate how the primary tastes are combined to produce overall taste. In addition, the exercises outlined here expand upon previously published demonstrations employing Gymnema sylvestre to include illustrations of the different sensory transduction mechanisms associated with each of the four or five primary taste modalities. Students compare their qualitative primary taste experiences to salt, sugar, aspartame, chocolate, and sweet-sour candy prior to and following exposure to Gymnema sylvestre. The herb's impairment of sweet sensation is profound and dramatically alters the perception of sweetness in sugar, chocolate, and candy without altering the perception of the other primary tastes. The exercise has an indelible effect on students because the herb's intense effect compels students to rely on their unique personal experiences to highlight the principles of gustatory sensation.
Use of the Herb Gymnema sylvestre to Illustrate the Principles of Gustatory Sensation: An Undergraduate Neuroscience Laboratory Exercise

PubMed Central

Schroeder, Joseph A.; Flannery-Schroeder, Ellen

2005-01-01

The Indian herb Gymnema sylvestre has been used in traditional Ayurvedic medicine for 2000 years, most recently for the treatment of diabetes. Loose leaf Gymnema sylvestre can be prepared as a tea and will impair the ability to taste sugar by blocking sweet receptors on the tongue. This report describes a laboratory exercise easily applied to an undergraduate neuroscience course that can be used to illustrate the principles of gustatory sensation. Combined with a preceding lecture on the primary taste sensations, students experience and appreciate how the primary tastes are combined to produce overall taste. In addition, the exercises outlined here expand upon previously published demonstrations employing Gymnema sylvestre to include illustrations of the different sensory transduction mechanisms associated with each of the four or five primary taste modalities. Students compare their qualitative primary taste experiences to salt, sugar, aspartame, chocolate, and sweet-sour candy prior to and following exposure to Gymnema sylvestre. The herb’s impairment of sweet sensation is profound and dramatically alters the perception of sweetness in sugar, chocolate, and candy without altering the perception of the other primary tastes. The exercise has an indelible effect on students because the herb’s intense effect compels students to rely on their unique personal experiences to highlight the principles of gustatory sensation. PMID:23493970
Investigating Plants: Hands-On, Low-Cost Laboratory Exercises in Plant Science.

ERIC Educational Resources Information Center

Sinclair, Thomas R.; Johnson, Marty

This manual describes 14 hands-on exercises for middle school introductory biology courses that are designed to allow all students to be involved in self-discoveries about life and plant life in particular. The exercises were developed to supplement normal classroom activities by allowing students to initiate ongoing projects to investigate the…
Developing information fluency in introductory biology students in the context of an investigative laboratory.

PubMed

Lindquester, Gary J; Burks, Romi L; Jaslow, Carolyn R

2005-01-01

Students of biology must learn the scientific method for generating information in the field. Concurrently, they should learn how information is reported and accessed. We developed a progressive set of exercises for the undergraduate introductory biology laboratory that combine these objectives. Pre- and postassessments of approximately 100 students suggest that increases occurred, some statistically significant, in the number of students using various library-related resources, in the numbers and confidence level of students using various technologies, and in the numbers and confidence levels of students involved in various activities related to the scientific method. Following this course, students should be better prepared for more advanced and independent study.
Developing Information Fluency in Introductory Biology Students in the Context of an Investigative Laboratory

PubMed Central

2005-01-01

Students of biology must learn the scientific method for generating information in the field. Concurrently, they should learn how information is reported and accessed. We developed a progressive set of exercises for the undergraduate introductory biology laboratory that combine these objectives. Pre- and postassessments of approximately 100 students suggest that increases occurred, some statistically significant, in the number of students using various library-related resources, in the numbers and confidence level of students using various technologies, and in the numbers and confidence levels of students involved in various activities related to the scientific method. Following this course, students should be better prepared for more advanced and independent study. PMID:15746979
Effects of exercise dependence on psychological health of Chinese college students.

PubMed

Li, Menglong; Nie, Jingsong; Ren, Yujia

2015-12-01

The aim of this study was to investigate the effects of exercise dependence on the psychological health of Chinese college students. A total of 1601 college students from three universities in Hunan, China, were selected as research subjects. Several measurement scales, including the Exercise Addiction Inventory, the State-Trait Anxiety Inventory, the Center for Epidemiologic Studies Depression Scale, and the Subjective Well-being Scale, were used to survey the psychological health problem of these students and to analyze the effects of exercise dependence on their psychological health. Exercise dependence, based on the structural equation model analysis, can positively influence state anxiety (P<0.05), depression (P<0.05), and subjective well-being (P<0.05) of Chinese students. By contrast, exercise dependence negatively influences students' self-satisfaction (P<0.05), social behavior (P<0.05), and vigor (P<0.05). Exercise dependence adversely affects the psychological health of college students. Further research using multi-dimensional exercise addiction scales should be conducted to identify all the negative effects of exercise addiction factors on psychological health.
Developing a cardiopulmonary exercise testing laboratory.

PubMed

Diamond, Edward

2007-12-01

Cardiopulmonary exercise testing is a noninvasive and cost-effective technique that adds significant value to the assessment and management of a variety of symptoms and diseases. The penetration of this testing in medical practice may be limited by perceived operational and financial barriers. This article reviews coding and supervision requirements related to both simple and complex pulmonary stress testing. A program evaluation and review technique diagram is used to describe the work flow process. Data from our laboratory are used to generate an income statement that separates fixed and variable costs and calculates the contribution margin. A cost-volume-profit (break-even) analysis is then performed. Using data from our laboratory including fixed and variable costs, payer mix, reimbursements by payer, and the assumption that the studies are divided evenly between simple and complex pulmonary stress tests, the break-even number is calculated to be 300 tests per year. A calculator with embedded formulas has been designed by the author and is available on request. Developing a cardiopulmonary exercise laboratory is challenging but achievable and potentially profitable. It should be considered by a practice that seeks to distinguish itself as a quality leader. Providing this clinically valuable service may yield indirect benefits such as increased patient volume and increased utilization of other services provided by the practice. The decision for a medical practice to commit resources to managerial accounting support requires a cost-benefit analysis, but may be a worthwhile investment in our challenging economic environment.

LABORATORY EXERCISES IN OCEANOGRAPHY FOR HIGH SCHOOLS.

ERIC Educational Resources Information Center

National Science Foundation, Washington, DC.

DESCRIBED ARE LABORATORY EXERCISES IN OCEANOGRAPHY DEVELOPED FOR USE IN HIGH SCHOOLS BY THE SECONDARY SCHOOL TEACHERS IN THE 1967 NATIONAL SCIENCE FOUNDATION (NSF) SUMMER INSTITUTE IN OCEANOGRAPHY AT FLORIDA STATE UNIVERSITY. INCLUDED ARE SUCH ACTIVITIES AS (1) THE MEASUREMENT OF TEMPERATURE, WATER VAPOR, PRESSURE, SALINITY, DENSITY, AND OTHERS,…
The recording of student performance in the microbiology laboratory as a training, tutorial, and motivational tool.

PubMed

Lipson, Steven M; Gair, Marina

2011-01-01

The laboratory component of a microbiology course consists of exercises which mandate a level of proficiency and manual dexterity equal to and often beyond that recognized among other biology courses. Bacterial growth, maintenance, identification (e.g., Gram stain, biochemical tests, genomics), as well as the continuous need to maintain laboratory safety and sterile technique, are only a few skills/responsibilities critical to the discipline of microbiology. Performance of the Gram stain remains one of the most basic and pivotal skills that must be mastered in the microbiology laboratory. However, a number of students continually have difficulty executing the Gram stain and preparative procedures associated with the test. In order to address this issue, we incorporated real-time digital recording as a supplemental teaching aid in the microbiology laboratory. Our use of the digital movie camera in the teaching setting served to enhance interest, motivate students, and in general, improve student performance.
Medical students' perceptions of the importance of exercise and their perceived competence in prescribing exercise to older people.

PubMed

Jadczak, Agathe Daria; Tam, Khai Loon; Yu, Solomon; Visvanathan, Renuka

2017-09-01

To determine the effects of a 4.5-week geriatric medicine course on fifth year medical students' perception of the importance of and their competence in prescribing exercise to older people. The modified Exercise and Physical Activity Competence Questionnaire was administered to 81 students before and after the course. Scores ranged from 0 to 6. One open-ended question about perceived barriers to exercise prescription was asked. Students' perceptions of the importance of designing an exercise prescription (P = 0.038), determining the training heart rate (P = 0.021), determining the body mass index (P > 0.001), referring an older person to an exercise program (P > 0.001) and identifying age-related limitations (P = 0.029) improved significantly after the course. Students' self-perceived competence improved significantly across all items (P > 0.001). Barriers to exercise prescription included lack of: knowledge (57%), patient compliance (39%) and time (33%). A geriatric medicine course contributes to improved senior medical students' perceptions of importance of and their competence in prescribing exercise to older people. © 2017 AJA Inc.
A Guided-Inquiry pH Laboratory Exercise for Introductory Biological Science Laboratories

ERIC Educational Resources Information Center

Snodgrass, Meagan A.; Lux, Nicholas; Metz, Anneke M.

2011-01-01

There is a continuing need for engaging inquiry-based laboratory experiences for advanced high school and undergraduate biology courses. The authors describe a guided-inquiry exercise investigating the pH-dependence of lactase enzyme that uses an inexpensive, wide-range buffering system, lactase dietary supplement, over-the-counter glucose test…
Influencing physiotherapy student attitudes toward exercise for adolescents with Down syndrome.

PubMed

Shields, Nora; Bruder, Andrea; Taylor, Nicholas; Angelo, Tom

2011-01-01

Negative attitudes of physiotherapists may prevent them from implementing exercise as an intervention among people with disabilities. The aim of this study was to examine whether physiotherapy student attitudes towards the barriers to exercise for adolescents with Down syndrome changed as a result of participating in a 10-week exercise programme. Data were collected as part of a randomised controlled trial. Twenty physiotherapy students (2 men, 18 women; mean age 19.5±1.3 years) volunteered to act as mentors. Each mentor was matched with an adolescent with Down syndrome from the same metropolitan suburb, who had been randomly allocated to either the intervention or the control group. The 10 adolescents and students in the intervention group all completed a 10-week, twice a week progressive resistance exercise training programme. The 10 adolescents and students in the control group continued with their usual activities. The students completed the 18-item Exercise Barriers Scale at baseline and after 10 weeks. There was a positive change in attitudes, significant at the p <0.05 level, favouring the intervention group on 9 of the 18 items on the Exercise Barriers Scale. After engagement in a 10-week exercise programme with an adolescent with Down syndrome, physiotherapy students identified fewer barriers that would prevent adolescents with Down syndrome from exercising. Results indicate that contact with adolescents with Down syndrome during clinical placement can positively influence attitudes towards exercise for people with Down syndrome among physiotherapy students.
GHSI EMERGENCY RADIONUCLIDE BIOASSAY LABORATORY NETWORK: SUMMARY OF A RECENT EXERCISE.

PubMed

Li, Chunsheng; Ansari, Armin; Bartizel, Christine; Battisti, Paolo; Franck, Didier; Gerstmann, Udo; Giardina, Isabella; Guichet, Claude; Hammond, Derek; Hartmann, Martina; Jones, Robert L; Kim, Eunjoo; Ko, Raymond; Morhard, Ryan; Quayle, Deborah; Sadi, Baki; Saunders, David; Paquet, Francois

2016-11-01

The Global Health Security Initiative (GHSI) established a laboratory network within the GHSI community to develop their collective surge capacity for radionuclide bioassay in response to a radiological or nuclear emergency. A recent exercise was conducted to test the participating laboratories for their capabilities in screening and in vitro assay of biological samples, performing internal dose assessment and providing advice on medical intervention, if necessary, using a urine sample spiked with a single radionuclide, 241 Am. The laboratories were required to submit their reports according to the exercise schedule and using pre-formatted templates. Generally, the participating laboratories were found to be capable with respect to rapidly screening samples for radionuclide contamination, measuring the radionuclide in the samples, assessing the intake and radiation dose, and providing advice on medical intervention. However, gaps in bioassay measurement and dose assessment have been identified. The network may take steps to ensure that procedures and practices within this network be harmonised and a follow-up exercise be organised on a larger scale, with potential participation of laboratories from the networks coordinated by the International Atomic Energy Agency and the World Health Organization. © The Author 2015. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.
Effects of exercise on craving and cigarette smoking in the human laboratory.

PubMed

Kurti, Allison N; Dallery, Jesse

2014-06-01

Exercise is increasingly being pursued as a treatment to reduce cigarette smoking. The efficacy of clinical, exercise-based cessation interventions may be enhanced by conducting laboratory studies to determine maximally effective conditions for reducing smoking, and the mechanisms through which the effects on smoking are achieved. The main purpose of this study was to assess whether the effects of exercise on two components of craving (anticipated reward from smoking, anticipated relief from withdrawal) mediated the relationship between exercise and delay (in min) to ad libitum smoking. Experiment 1 (N=21) assessed the effects of exercise intensity (inactivity, low, moderate) on craving components up to 60 min post-exercise. Because moderate-intensity exercise most effectively reduced craving on the reward component, all participants exercised at a moderate intensity in Experiment 2. Using an ABAB within-subjects design, Experiment 2 (N=20) evaluated whether the effects of moderate-intensity exercise on reward and relief components of craving mediated the relationship between exercise and participants' delays (in min) to ad libitum smoking. Delays were significantly longer after exercise (M=21 min) versus inactivity (M=4 min), and the effects of exercise on delay were mediated through the reward component of craving. Future research should continue to explore the mechanisms through which exercise influences behavioral indices of smoking in the human laboratory. Additionally, given the benefits uniquely afforded by exercise-based cessation interventions (e.g., improving mood and other health outcomes), implementing these interventions in clinical settings may contribute substantially to improving public health. Copyright © 2014 Elsevier Ltd. All rights reserved.
An Exercise Prescription Course to Improve Pharmacy Students' Confidence in Patient Counseling

PubMed Central

2009-01-01

Objectives To create, implement, and evaluate an elective course on the foundational aspects of exercise prescription to increase pharmacy students' knowledge about exercise and confidence in offering exercise advice in pharmacy practice. Design A course was designed as an elective using the American College of Sports Medicine guidelines for exercise prescription for healthy and clinical populations. Assessment Surveys of students who did and did not take the elective were conducted over 2 years to assess the impact of the course on students' confidence in knowledge and counseling. Students' confidence in counseling patients about exercise increased after taking the course and remained higher after 6 months. Conclusions This course increased pharmacy students' knowledge and confidence in incorporating exercise prescriptions in their advice to various patient populations. PMID:19960077
Drosophila and Beer: An Experimental Laboratory Exercise

ERIC Educational Resources Information Center

Kurvink, Karen

2004-01-01

Drosophila melanogaster is a popular organism for studying genetics and development. Maintaining Drosophila on medium prepared with varying concentrations of beer and evaluating the effects on reproduction, life cycle stages and other factors is one of the exercises that is versatile and applicable to many student levels.
State of laboratory manual instruction in California community college introductory (non-majors) biology laboratory instruction

NASA Astrophysics Data System (ADS)

Priest, Michelle

College students must complete a life science course prior to graduation for a bachelor's degree. Generally, the course has lecture and laboratory components. It is in the laboratory where there are exceptional opportunities for exploration, challenge and application of the material learned. Optimally, this would utilize the best of inquiry based approaches. Most community colleges are using a home-grown or self written laboratory manual for the direction of work in the laboratory period. Little was known about the motivation, development and adaptation of use. It was also not known about the future of the laboratory manuals in light of the recent learning reform in California Community Colleges, Student Learning Outcomes. Extensive interviews were conducted with laboratory manual authors to determine the motivation, process of development, who was involved and learning framework used in the creation of the manuals. It was further asked of manual authors their ideas about the future of the manual, the development of staff and faculty and finally, the role Student Learning Outcomes would play in the manual. Science faculty currently teaching the non-majors biology laboratories for at least two semesters were surveyed on-line about actual practice of the manual, assessment, manual flexibility, faculty training and incorporation of Student Learning Outcomes. Finally, an evaluation of the laboratory manual was done using an established Laboratory Task Analysis Instrument. Laboratory manuals were evaluated on a variety of categories to determine the level of inquiry instruction done by students in the laboratory section. The results were that the development of homegrown laboratory manuals was done by community colleges in the Los Angeles and Orange Counties in an effort to minimize the cost of the manual to the students, to utilize all the exercises in a particular lab and to effectively utilize the materials already owned by the department. Further, schools wanted to
Undergraduate Student Attitudes and Perceptions toward Low- and High-Level Inquiry Exercise Physiology Teaching Laboratory Experiences

ERIC Educational Resources Information Center

Henige, Kim

2011-01-01

The purpose of this investigation was to compare student attitudes toward two different science laboratory learning experiences, specifically, traditional, cookbook-style, low-inquiry level (LL) activities and a high-inquiry level (HL) investigative project. In addition, we sought to measure and compare students' science-related attitudes and…
Laboratory Activities for Developing Process Skills.

ERIC Educational Resources Information Center

Institute for Services to Education, Inc., Washington, DC.

This workbook contains laboratory exercises designed for use in a college introductory biology course. Each exercise helps the student develop a basic science skill. The exercises are arranged in a hierarchical sequence suggesting the scientific method. Each skill facilitates the development of succeeding ones. Activities include Use of the…
Student perceptions of an upper-level, undergraduate human anatomy laboratory course without cadavers.

PubMed

Wright, Shirley J

2012-01-01

Several programs in health professional education require or are considering requiring upper-level human anatomy as prerequisite for their applicants. Undergraduate students are confronted with few institutions offering such a course, in part because of the expense and logistical issues associated with a cadaver-based human anatomy course. This study describes the development of and student reactions to an upper-level human anatomy laboratory course for undergraduate students that used a regional approach and contemporary, alternative teaching methods to a cadaver-based course. The alternative pedagogy to deliver the curriculum included use of commercially available, three-dimensional anatomical virtual dissection software, anatomical models coupled with a learning management system to offer Web-based learning, and a new laboratory manual with collaborative exercises designed to develop the student's anatomical skills and collaborative team skills. A Likert-scale survey with open-ended questions was used to ascertain student perceptions of the course and its various aspects. Students perceived that the noncadaver-based, upper-level human anatomy course with an engaging, regional approach is highly valuable in their learning of anatomy. anatomy. Copyright © 2012 American Association of Anatomists.
Undergraduate Laboratory Exercises Specific to Food Spoilage Microbiology

ERIC Educational Resources Information Center

Snyder, Abigail B.; Worobo, Randy W.; Orta-Ramirez, Alicia

2016-01-01

Food spoilage has an enormous economic impact, and microbial food spoilage plays a significant role in food waste and loss; subsequently, an equally significant portion of undergraduate food microbiology instruction should be dedicated to spoilage microbiology. Here, we describe a set of undergraduate microbiology laboratory exercises that focus…
Open-ended versus guided laboratory activities:Impact on students' beliefs about experimental physics

NASA Astrophysics Data System (ADS)

Wilcox, Bethany R.; Lewandowski, H. J.

2016-12-01

Improving students' understanding of the nature of experimental physics is often an explicit or implicit goal of undergraduate laboratory physics courses. However, lab activities in traditional lab courses are typically characterized by highly structured, guided labs that often do not require or encourage students to engage authentically in the process of experimental physics. Alternatively, open-ended laboratory activities can provide a more authentic learning environment by, for example, allowing students to exercise greater autonomy in what and how physical phenomena are investigated. Engaging in authentic practices may be a critical part of improving students' beliefs around the nature of experimental physics. Here, we investigate the impact of open-ended activities in undergraduate lab courses on students' epistemologies and expectations about the nature of experimental physics, as well as their confidence and affect, as measured by the Colorado Learning Attitudes about Science Survey for Experimental Physics (E-CLASS). Using a national data set of student responses to the E-CLASS, we find that the inclusion of some open-ended lab activities in a lab course correlates with more expertlike postinstruction responses relative to courses that include only traditional guided lab activities. This finding holds when examining postinstruction E-CLASS scores while controlling for the variance associated with preinstruction scores, course level, student major, and student gender.
Teaching Baroreflex Physiology to Medical Students: A Comparison of Quiz-Based and Conventional Teaching Strategies in a Laboratory Exercise

ERIC Educational Resources Information Center

Berg, Ronan M. G.; Plovsing, Ronni R.; Damgaard, Morten

2012-01-01

Quiz-based and collaborative teaching strategies have previously been found to be efficient for the improving meaningful learning of physiology during lectures. These approaches have, however, not been investigated during laboratory exercises. In the present study, we compared the impact of solving quizzes individually and in groups with…
Exposing college students to exercise: the training interventions and genetics of exercise response (TIGER) study

USDA-ARS?s Scientific Manuscript database

The Training Interventions and Genetics of Exercise Response (TIGER) study is an exercise program designed to introduce sedentary college students to regular physical activity and to identify genetic factors that influence response to exercise. A multiracial/ethnic cohort (N = 1,567; 39% male), age ...
Effectiveness of a cloning and sequencing exercise on student learning with subsequent publication in the National Center for Biotechnology Information GenBank.

PubMed

Lau, Joann M; Robinson, David L

2009-01-01

With rapid advances in biotechnology and molecular biology, instructors are challenged to not only provide undergraduate students with hands-on experiences in these disciplines but also to engage them in the "real-world" scientific process. Two common topics covered in biotechnology or molecular biology courses are gene-cloning and bioinformatics, but to provide students with a continuous laboratory-based research experience in these techniques is difficult. To meet these challenges, we have partnered with Bio-Rad Laboratories in the development of the "Cloning and Sequencing Explorer Series," which combines wet-lab experiences (e.g., DNA extraction, polymerase chain reaction, ligation, transformation, and restriction digestion) with bioinformatics analysis (e.g., evaluation of DNA sequence quality, sequence editing, Basic Local Alignment Search Tool searches, contig construction, intron identification, and six-frame translation) to produce a sequence publishable in the National Center for Biotechnology Information GenBank. This 6- to 8-wk project-based exercise focuses on a pivotal gene of glycolysis (glyceraldehyde-3-phosphate dehydrogenase), in which students isolate, sequence, and characterize the gene from a plant species or cultivar not yet published in GenBank. Student achievement was evaluated using pre-, mid-, and final-test assessments, as well as with a survey to assess student perceptions. Student confidence with basic laboratory techniques and knowledge of bioinformatics tools were significantly increased upon completion of this hands-on exercise.
Effect of an exercise and weight control curriculum: views of obesity among exercise science students.

PubMed

Richardson, Laura A; Fister, Carrie L; Ramlo, Susan E

2015-06-01

Awareness of effective weight management strategies is necessary to prepare exercise science students for future work with obesity. Exercise science faculty members developed a course related to exercise as a therapeutic tool and options available for weight loss. The purpose of the present study was to investigate student views of weight management and obesity, which can be a difficult task using traditional methods such as Likert scale surveys. To investigate student views relative to the course content, Q methodology, which is a mixed-method research approach, was used at the beginning and end of the course. Students completed a Q sort, ranking 44 statements related to obesity in accordance to their own points of view. The pretest/posttest design enabled an opportunity to determine if course goals were accomplished and if student perceptions related to obesity were transformed. Factor analysis of precourse sorts revealed that students possessed a naïve singular view of weight-related concepts. Analysis of sorts at course completion resulted in a two-factor solution revealing changes in perspective; some students took on a health professional type of view, whereas others demonstrated antifat views. In conclusion, the findings revealed key variables that should be addressed in curricula involving therapeutic obesity interventions. An improved curriculum based on these results should better encourage students to develop a broad comprehension of multifactorial causes and treatment for weight management and obesity. Implementing the use of Q methodology may serve as a valuable asset to measure and evaluate subjectivity of obesity discrimination. Antifat attitudes among exercise science students may influence future clients' potential achievements. Copyright © 2015 The American Physiological Society.
Investigating Student Perceptions of the Chemistry Laboratory and Their Approaches to Learning in the Laboratory

NASA Astrophysics Data System (ADS)

Berger, Spencer Granett

This dissertation explores student perceptions of the instructional chemistry laboratory and the approaches students take when learning in the laboratory environment. To measure student perceptions of the chemistry laboratory, a survey instrument was developed. 413 students responded to the survey during the Fall 2011 semester. Students' perception of the usefulness of the laboratory in helping them learn chemistry in high school was related to several factors regarding their experiences in high school chemistry. Students' perception of the usefulness of the laboratory in helping them learn chemistry in college was also measured. Reasons students provided for the usefulness of the laboratory were categorized. To characterize approaches to learning in the laboratory, students were interviewed midway through semester (N=18). The interviews were used to create a framework describing learning approaches that students use in the laboratory environment. Students were categorized into three levels: students who view the laboratory as a requirement, students who believe that the laboratory augments their understanding, and students who view the laboratory as an important part of science. These categories describe the types of strategies students used when conducting experiments. To further explore the relationship between students' perception of the laboratory and their approaches to learning, two case studies are described. These case studies involve interviews in the beginning and end of the semester. In the interviews, students reflect on what they have learned in the laboratory and describe their perceptions of the laboratory environment. In order to encourage students to adopt higher-level approaches to learning in the laboratory, a metacognitive intervention was created. The intervention involved supplementary questions that students would answer while completing laboratory experiments. The questions were designed to encourage students to think critically about the

Health status, physical activity, and orthorexia nervosa: A comparison between exercise science students and business students.

PubMed

Malmborg, Julia; Bremander, Ann; Olsson, M Charlotte; Bergman, Stefan

2017-02-01

Orthorexia nervosa is described as an exaggerated fixation on healthy food. It is unclear whether students in health-oriented academic programs, highly focused on physical exercise, are more prone to develop orthorexia nervosa than students in other educational areas. The aim was to compare health status, physical activity, and frequency of orthorexia nervosa between university students enrolled in an exercise science program (n = 118) or a business program (n = 89). The students completed the Short Form-36 Health Survey (SF-36), the International Physical Activity Questionnaire (IPAQ), and ORTO-15, which defines orthorexia nervosa as a sensitive and obsessive behavior towards healthy nutrition. The SF-36 showed that exercise science students scored worse than business students regarding bodily pain (72.8 vs. 82.5; p = 0.001), but better regarding general health (83.1 vs. 77.1; p = 0.006). Of 188 students, 144 (76.6%) had an ORTO-15 score indicating orthorexia nervosa, with a higher proportion in exercise science students than in business students (84.5% vs. 65.4%; p = 0.002). Orthorexia nervosa in combination with a high level of physical activity was most often seen in men in exercise science studies and less often in women in business studies (45.1% vs. 8.3%; p < 0.000). A high degree of self-reporting of pain and orthorexia nervosa in exercise science students may cause problems in the future, since they are expected to coach others in healthy living. Our findings may be valuable in the development of health-oriented academic programs and within student healthcare services. Copyright © 2016 Elsevier Ltd. All rights reserved.
Making Connections in the Undergraduate Laboratory.

ERIC Educational Resources Information Center

Poole, Bobbie J.; Kidder, Stanley Q.

1996-01-01

Describes a strategy used in a meteorology course to increase its relevance to students' lives. Involves combining the lecture and laboratory portions of the course and including a Connections section in the lab report in which students comment on the connections they saw between the coursework, the laboratory exercises, and their own experience.…
Laboratory Activity on Sample Handling and Maintaining a Laboratory Notebook through Simple pH Measurements

ERIC Educational Resources Information Center

Erdmann, Mitzy A.; March, Joe L.

2016-01-01

Sample handling and laboratory notebook maintenance are necessary skills but can seem abstract if not presented to students in context. An introductory exercise focusing on proper sample handling, data collection and laboratory notebook keeping for the general chemistry laboratory was developed to emphasize the importance of keeping an accurate…
Development of Handcraft Exercise Courses that Bring Out Student's Creativity

NASA Astrophysics Data System (ADS)

Senda, Shinkoh; Yamamoto, Koji; Fukumori, Tutom; Matsuura, Hideo; Sato, Kazuo

We have developed a new type of handcraft exercise program that aims to stimulate student's creativity on the way of design and fabrication of the subject machines. Conventional handicraft exercise program used to aim at letting students learn procedures of machining operation in accordance with a designated manual. Students having experienced our conventional exercise did not fully satisfied at those programs because of the lack in a room for their idea and creativity. Authors, a group of both technical and academic staffs, have developed and started the new type of program since 2003 at the Creation Plaza in Nagoya University. Developed program is classified into grades according to the difference in technical contents required for students.
Exposing College Students to Exercise: The Training Interventions and Genetics of Exercise Response (TIGER) Study

ERIC Educational Resources Information Center

Sailors, Mary H.; Jackson, Andrew S.; McFarlin, Brian K.; Turpin, Ian; Ellis, Kenneth J.; Foreyt, John P.; Hoelscher, Deanna M.; Bray, Molly S.

2010-01-01

Objective: The Training Interventions and Genetics of Exercise Response (TIGER) study is an exercise program designed to introduce sedentary college students to regular physical activity and to identify genetic factors that influence response to exercise. Participants: A multiracial/ethnic cohort (N = 1,567; 39% male), age 18 to 35 years,…
Predictors of physical activity and barriers to exercise in nursing and medical students.

PubMed

Blake, Holly; Stanulewicz, Natalia; Mcgill, Francesca

2017-04-01

To investigate physical activity levels of nursing and medicine students, examine predictors of physical activity level and examine the most influential benefits and barriers to exercise. Healthcare professionals have low levels of physical activity, which increases their health risk and may influence their health promotion practices with patients. We surveyed 361 nursing (n = 193) and medicine (n = 168) students studying at a UK medical school. Questionnaire survey, active over 12 months in 2014-2015. Measures included physical activity level, benefits and barriers to exercise, social support, perceived stress and self-efficacy for exercise. Many nursing and medicine students did not achieve recommended levels of physical activity (nursing 48%; medicine 38%). Perceived benefits of exercise were health related, with medicine students identifying additional benefits for stress relief. Most notable barriers to exercise were as follows: lack of time, facilities having inconvenient schedules and exercise not fitting around study or placement schedules. Nursing students were less active than medicine students; they perceived fewer benefits and more barriers to exercise and reported lower social support for exercise. Physical activity of nursing and medicine students was best predicted by self-efficacy and social support, explaining 35% of the variance. Physical activity should be promoted in nursing and medicine students. Interventions should aim to build self-efficacy for exercise and increase social support. Interventions should be developed that are targeted specifically to shift-working frontline care staff, to reduce schedule-related barriers to exercise and to increase accessibility to workplace health and well-being initiatives. © 2016 John Wiley & Sons Ltd.
Social physique anxiety, obligation to exercise, and exercise choices among college students.

PubMed

Chu, Hui-Wen; Bushman, Barbara A; Woodard, Rebecca J

2008-01-01

The authors examined relationships among social physique anxiety, obligation to exercise, and exercise choices. College students (N = 337; 200 women, 137 men) volunteered to complete 3 questionnaires: the Social Physique Anxiety Scale (SPAS), Obligatory Exercise Questionnaire (OEQ), and Physical Activity Specification Survey (PASS). On the SPAS, men (M score = 31.9 +/- 8.8) differed from women (M score = 37.3 +/- 8.3; p = .001). Men (M score = 43.0 +/- 9.9) and women (M score = 43.0 +/- 9.6) responded similarly (p = .94) on the OEQ. There was no interaction between sex and exercise level on the SPAS or OEQ. When separated by low, medium, and high SPAS scores, neither OEQ nor exercise scores differed. Obligation to exercise appears to be similar for both sexes. Women, however, appear to have higher levels of anxiety regarding how others evaluate their physique than do men. The combination of level of activity and sex do not appear to be associated with social physique anxiety or obligation to exercise.
Exercise: Benefits for Body and Mind. Student Workbook. Health Promotion for Adult Literacy Students: An Empowering Approach.

ERIC Educational Resources Information Center

Hudson River Center for Program Development, Glenmont, NY.

This workbook was developed to help adult literacy students learn about exercise and physical fitness. It contains information sheets and student worksheets, coordinated with an audiotape that is available. Some of the topics covered in the workbook are the following: benefits of exercise; stress; aerobic versus anaerobic exercise; exercise…
Incorporating Personality Assessment into Counseling To Help College Students Adopt and Maintain Exercise Behaviors.

ERIC Educational Resources Information Center

Buckworth, Janet; Granello, Darcy Haag; Belmore, Jennifer

2002-01-01

The authors investigated the influence of several personality traits on exercise adherence and exercise self-efficacy for 168 undergraduate students. At all levels of exercise adherence, students with different personality traits had different amounts of exercise self-efficacy. Implications for college counselors working with students to improve…
Back to the future! Revisiting the physiological cost of negative work as a team-based activity for exercise physiology students.

PubMed

Kilgas, Matthew A; Elmer, Steven J

2017-03-01

We implemented a team-based activity in our exercise physiology teaching laboratory that was inspired from Abbott et al.'s classic 1952 Journal of Physiology paper titled "The physiological cost of negative work." Abbott et al. connected two bicycles via one chain. One person cycled forward (muscle shortening contractions, positive work) while the other resisted the reverse moving pedals (muscle lengthening contractions, negative work), and the cost of work was compared. This study was the first to link human whole body energetics with isolated muscle force-velocity characteristics. The laboratory activity for our students ( n = 35) was designed to reenact Abbott et al.'s experiment, integrate previously learned techniques, and illustrate differences in physiological responses to muscle shortening and lengthening contractions. Students (11-12 students/laboratory section) were split into two teams (positive work vs. negative work). One student from each team volunteered to cycle against the other for ~10 min. The remaining students in each team were tasked with measuring: 1 ) O 2 consumption, 2 ) heart rate, 3 ) blood lactate, and 4 ) perceived exertion. Students discovered that O 2 consumption during negative work was about one-half that of positive work and all other physiological parameters were also substantially lower. Muscle lengthening contractions were discussed and applied to rehabilitation and sport training. The majority of students (>90%) agreed or strongly agreed that they stayed engaged during the activity and it improved their understanding of exercise physiology. All students recommended the activity be performed again. This activity was engaging, emphasized teamwork, yielded clear results, was well received, and preserved the history of classic physiological experiments. Copyright © 2017 the American Physiological Society.
Burbank exercises on the CEVIS in the U.S. Laboratory

NASA Image and Video Library

2011-12-09

ISS030-E-010646 (9 Dec. 2011) --- NASA astronaut Dan Burbank, Expedition 30 commander, exercises on the Cycle Ergometer with Vibration Isolation System (CEVIS) in the Destiny laboratory of the International Space Station.
Burbank exercises on the CEVIS in the U.S. Laboratory

NASA Image and Video Library

2011-12-09

ISS030-E-010644 (9 Dec. 2011) --- NASA astronaut Dan Burbank, Expedition 30 commander, exercises on the Cycle Ergometer with Vibration Isolation System (CEVIS) in the Destiny laboratory of the International Space Station.
Hands-on laboratory Experience in Teaching-Learning Physiology.

ERIC Educational Resources Information Center

Randall, Walter C.; Burkholder, Timothy

1990-01-01

The results of actual student participation, with organized group discussions, which show that laboratory teaching remains the premiere mechanism for teaching and learning organ-system physiology are discussed. Laboratories using a pithed frog, a turtle heart, an anesthetized rabbit, and noninvasive recordings from students during exercise are…
Pettit exercises on the CEVIS in the U.S. Laboratory

NASA Image and Video Library

2012-01-15

ISS030-E-032768 (15 Jan. 2012) --- NASA astronaut Don Pettit, Expedition 30 flight engineer, exercises on the Cycle Ergometer with Vibration Isolation System (CEVIS) in the Destiny laboratory of the International Space Station.
Ivanishin exercises on the CEVIS in the U.S. Laboratory

NASA Image and Video Library

2011-12-10

ISS030-E-012738 (10 Dec. 2011) --- Russian cosmonaut Anatoly Ivanishin, Expedition 30 flight engineer, exercises on the Cycle Ergometer with Vibration Isolation System (CEVIS) in the Destiny laboratory of the International Space Station.
Writing Laboratory Exercises To Be Used with a Writing and Research Guide.

ERIC Educational Resources Information Center

Alicna, Elaine; And Others

Intended to facilitate a broader emphasis on creative writing in American high school English classes, this manual offers a number of writing laboratory exercises. The exercises are divided into five categories: (1) library skills, including reference book know how, and using the parts of books; (2) critical reading skills, including…
An Exercise in Modelling Using the US Standard Atmosphere

ERIC Educational Resources Information Center

LoPresto, Michael C.; Jacobs, Diane A.

2007-01-01

In this exercise the US Standard Atmosphere is used as "data" that a student is asked to model by deriving equations to reproduce it with the help of spreadsheet and graphing software. The exercise can be used as a laboratory or an independent study for a student of introductory physics to provide an introduction to scientific research…
Coleman exercises on the CEVIS in the U.S. Laboratory

NASA Image and Video Library

2011-01-20

ISS026-E-018823 (20 Jan. 2011) --- NASA astronaut Catherine (Cady) Coleman, Expedition 26 flight engineer, exercises on the Cycle Ergometer with Vibration Isolation System (CEVIS) in the Destiny laboratory of the International Space Station.
Coleman exercises on the CEVIS in the U.S. Laboratory

NASA Image and Video Library

2011-01-20

ISS026-E-018816 (20 Jan. 2011) --- NASA astronaut Catherine (Cady) Coleman, Expedition 26 flight engineer, exercises on the Cycle Ergometer with Vibration Isolation System (CEVIS) in the Destiny laboratory of the International Space Station.
Coleman exercises on the CEVIS in the U.S. Laboratory

NASA Image and Video Library

2011-01-20

ISS026-E-018821 (20 Jan. 2011) --- NASA astronaut Catherine (Cady) Coleman, Expedition 26 flight engineer, exercises on the Cycle Ergometer with Vibration Isolation System (CEVIS) in the Destiny laboratory of the International Space Station.

Bloomington Writing Assessment 1977; Student Exercise, Teacher Directions, Scoring.

ERIC Educational Resources Information Center

Bloomington Public Schools, MN.

This booklet contains the 14 exercises that are used in the Bloomington, Minnesota, school system's writing assessment program. Depending on their applicability, the exercises may be used to assess the writing performance of fourth-, eighth-, or eleventh-grade students. Thirteen of the exercises are from the National Assessment of Educational…
An Environmentally Focused General Chemistry Laboratory

ERIC Educational Resources Information Center

Mihok, Morgan; Keiser, Joseph T.; Bortiatynski, Jacqueline M.; Mallouk, Thomas E.

2006-01-01

The environmentally focused general chemistry laboratory provides a format for teaching the concepts of the mainstream laboratory within an environmental context. The capstone integrated exercise emerged as the overwhelming favorite part of this laboratory and the experiment gave students an opportunity to do a self-directed project, using the…
Virtual Simulations as Preparation for Lab Exercises: Assessing Learning of Key Laboratory Skills in Microbiology and Improvement of Essential Non-Cognitive Skills.

PubMed

Makransky, Guido; Thisgaard, Malene Warming; Gadegaard, Helen

2016-01-01

To investigate if a virtual laboratory simulation (vLAB) could be used to replace a face to face tutorial (demonstration) to prepare students for a laboratory exercise in microbiology. A total of 189 students who were participating in an undergraduate biology course were randomly selected into a vLAB or demonstration condition. In the vLAB condition students could use a vLAB at home to 'practice' streaking out bacteria on agar plates in a virtual environment. In the demonstration condition students were given a live demonstration from a lab tutor showing them how to streak out bacteria on agar plates. All students were blindly assessed on their ability to perform the streaking technique in the physical lab, and were administered a pre and post-test to determine their knowledge of microbiology, intrinsic motivation to study microbiology, and self-efficacy in the field of microbiology prior to, and after the experiment. The results showed that there were no significant differences between the two groups on their lab scores, and both groups had similar increases in knowledge of microbiology, intrinsic motivation to study microbiology, as well as self-efficacy in the field of microbiology. Our data show that vLABs function just as well as face to face tutorials in preparing students for a physical lab activity in microbiology. The results imply that vLABs could be used instead of face to face tutorials, and a combination of virtual and physical lab exercises could be the future of science education.
A Placer-Gold Evaluation Exercise.

ERIC Educational Resources Information Center

Tunley, A. Tom

1984-01-01

A laboratory exercise allowing students to use drillhole data to simulate the process of locating a placer gold paystreak is presented. As part of the activity students arithmetically compute the value of their gold, mining costs, and personal profits or losses, and decide on development plans for the claim. (BC)
The chemistry teaching laboratory: The student perspective

NASA Astrophysics Data System (ADS)

Polles, John Steven

In this study, I investigated the Student/learner's experiences in the chemistry teaching laboratory and the meaning that she or he derived from these experiences. This study sought to answer these questions: (1) What was the students experience in the teaching laboratory?, (2) What aspects of the laboratory experience did the student value?, and (3) What beliefs did the student hold concerning the role of the laboratory experience in developing her or his understanding of chemistry? Students involved in an introductory chemistry course at Purdue University were asked to complete a two-part questionnaire consisting of 16 scaled response and 5 free response items, and 685 did so. Fourteen students also participated in a semi-structured individual interview. The questionnaire and interview were designed to probe the students' perceived experience and answer the above questions. I found that students possess strong conceptions of the laboratory experience: a pre-conception that colors their experience from the outset, and a post-conception that is a mix of positive and negative reflections. I also found that the learner deeply holds an implicit value in the laboratory experience. The other major finding was that the students' lived experience is dramatically shaped or influenced by external agencies, primarily the faculty (and by extension the teaching assistants). There is much debate in the extant literature over the learning value of the science teaching laboratory, but it is all from the perspective of faculty, curriculum designers, and administrators. This study adds the students' voice to the argument.
Effects of Students' Pre- and Post-Laboratory Concept Maps on Students' Attitudes toward Chemistry Laboratory in University General Chemistry

ERIC Educational Resources Information Center

Kilic, Ziya; Kaya, Osman Nafiz; Dogan, Alev

2004-01-01

The purpose of this study was to investigate the effects of scientific discussions based on student-constructed pre- and post-laboratory concept maps on students' attitudes toward chemistry laboratory in the university general chemistry. As part of instruction, during the first four laboratory sessions, students were taught how to construct and…
Introductory Bioinformatics Exercises Utilizing Hemoglobin and Chymotrypsin to Reinforce the Protein Sequence-Structure-Function Relationship

ERIC Educational Resources Information Center

Inlow, Jennifer K.; Miller, Paige; Pittman, Bethany

2007-01-01

We describe two bioinformatics exercises intended for use in a computer laboratory setting in an upper-level undergraduate biochemistry course. To introduce students to bioinformatics, the exercises incorporate several commonly used bioinformatics tools, including BLAST, that are freely available online. The exercises build upon the students'…
Perceived exercise benefits and barriers of non-exercising female university students in the United Kingdom.

PubMed

Lovell, Geoff P; El Ansari, Walid; Parker, John K

2010-03-01

Many individuals do not engage in sufficient physical activity due to low perceived benefits and high perceived barriers to exercise. Given the increasing incidence of obesity and obesity related health disorders, this topic requires further exploration. We used the Exercise Benefits/Barriers Scale to assess perceived benefit and barrier intensities to exercise in 200 non-exercising female university students (mean age 19.3 years, SD = 1.06) in the UK. Although our participants were selected because they self reported themselves to be non-exercising, however they reported significantly higher perceived benefits from exercise than perceived barriers to exercise [t(199) = 6.18, p < 0.001], and their perceived benefit/barrier ratio was 1.33. The greatest perceived benefit from exercise was physical performance followed by the benefits of psychological outlook, preventive health, life enhancement, and then social interaction. Physical performance was rated significantly higher than all other benefits. Psychological outlook and preventive health were not rated significantly different, although both were significantly higher than life enhancement and social interaction. Life enhancement was also rated significantly higher than social interaction. The greatest perceived barrier to exercise was physical exertion, which was rated significantly higher than time expenditure, exercise milieu, and family discouragement barriers. Implications from this investigation for the design of physical activity programmes include the importance, for females, of a perception of high benefit/barrier ratio that could be conducive to participation in exercise. Applied interventions need to assist female students to 'disengage' from or overcome any perceived 'unpleasantness' of physical exertion during physical activity (decrease their perceived barriers), and to further highlight the multiple health and other benefits of regular exercising (increase their perceived benefits).
The effect of restructuring student writing in the general chemistry laboratory on student understanding of chemistry and on students' approach to the laboratory course

NASA Astrophysics Data System (ADS)

Rudd, James Andrew, II

Many students encounter difficulties engaging with laboratory-based instruction, and reviews of research have indicated that the value of such instruction is not clearly evident. Traditional forms of writing associated with laboratory activities are commonly in a style used by professional scientists to communicate developed explanations. Students probably lack the interpretative skills of a professional, and writing in this style may not support students in learning how to develop scientific explanations. The Science Writing Heuristic (SWH) is an inquiry-based approach to laboratory instruction designed in part to promote student ability in developing such explanations. However, there is not a convincing body of evidence for the superiority of inquiry-based laboratory instruction in chemistry. In a series of studies, the performance of students using the SWH student template in place of the standard laboratory report format was compared to the performance of students using the standard format. The standard reports had Title, Purpose, Procedure, Data & Observations, Calculations & Graphs, and Discussion sections. The SWH reports had Beginning Questions & Ideas, Tests & Procedures, Observations, Claims, Evidence, and Reflection sections. The pilot study produced evidence that using the SWH improved the quality of laboratory reports, improved student performance on a laboratory exam, and improved student approach to laboratory work. A main study found that SWH students statistically exhibited a better understanding of physical equilibrium when written explanations and equations were analyzed on a lecture exam and performed descriptively better on a physical equilibrium practical exam task. In another main study, the activities covering the general equilibrium concept were restructured as an additional change, and it was found that SWH students exhibited a better understanding of chemical equilibrium as shown by statistically greater success in overcoming the common
Effects of yogic exercise on nonspecific neck pain in university students.

PubMed

Kim, Sang Dol

2018-05-01

To assess the effects of yogic exercise on nonspecific neck pain in university students. This study is a pretest-posttest design with a non-equivalent control group. Thirty-eight university students were selected by convenience sampling, with 18 assigned to an exercise group and 20 assigned to a control group. The yoga group participated in one-hour sessions of yogic exercise two days a week for eight weeks. The exercise comprised eight stages: relaxation, flexion of neck, extension of neck, right lateral flexion of neck, left lateral flexion of neck, right rotation of neck, left rotation of neck, and relaxation. Neck pain intensity was measured using a 100 mm visual analogue scale. The yoga group showed significantly decreased neck pain scores compared with those of the control group. These findings indicate that yogic exercises could reduce neck pain in university students. Copyright © 2017 Elsevier Ltd. All rights reserved.
Practicing Statistics by Creating Exercises for Fellow Students

ERIC Educational Resources Information Center

Bebermeier, Sarah; Reiss, Katharina

2016-01-01

This article outlines the execution of a workshop in which students were encouraged to actively review the course contents on descriptive statistics by creating exercises for their fellow students. In a first-year statistics course in psychology, 39 out of 155 students participated in the workshop. In a subsequent evaluation, the workshop was…
A Laboratory Exercise on Photoperiodic Changes in the Testes of the Mongolian Gerbil.

ERIC Educational Resources Information Center

Treagust, David F.; And Others

1980-01-01

A laboratory exercise using a gerbil is described for use in the high school biology class and in accordance with the National Science Teachers Association guidelines. The authors cite references that deal with current awareness of the moral status concerning animals. The exercise includes measurement and calculations. (SA)
Perceived Exercise Benefits and Barriers of Non-Exercising Female University Students in the United Kingdom

PubMed Central

Lovell, Geoff P; Ansari, Walid El; Parker, John K

2010-01-01

Many individuals do not engage in sufficient physical activity due to low perceived benefits and high perceived barriers to exercise. Given the increasing incidence of obesity and obesity related health disorders, this topic requires further exploration. We used the Exercise Benefits/Barriers Scale to assess perceived benefit and barrier intensities to exercise in 200 non-exercising female university students (mean age 19.3 years, SD = 1.06) in the UK. Although our participants were selected because they self reported themselves to be non-exercising, however they reported significantly higher perceived benefits from exercise than perceived barriers to exercise [t(199) = 6.18, p < 0.001], and their perceived benefit/barrier ratio was 1.33. The greatest perceived benefit from exercise was physical performance followed by the benefits of psychological outlook, preventive health, life enhancement, and then social interaction. Physical performance was rated significantly higher than all other benefits. Psychological outlook and preventive health were not rated significantly different, although both were significantly higher than life enhancement and social interaction. Life enhancement was also rated significantly higher than social interaction. The greatest perceived barrier to exercise was physical exertion, which was rated significantly higher than time expenditure, exercise milieu, and family discouragement barriers. Implications from this investigation for the design of physical activity programmes include the importance, for females, of a perception of high benefit/barrier ratio that could be conducive to participation in exercise. Applied interventions need to assist female students to ‘disengage’ from or overcome any perceived ‘unpleasantness’ of physical exertion during physical activity (decrease their perceived barriers), and to further highlight the multiple health and other benefits of regular exercising (increase their perceived benefits). PMID
Understanding Why Undergraduate Students Declare and Continue to Study an Exercise Science-Related Major.

PubMed

Vaartstra, Matthew B; Kercher, Vanessa M; Start, Amanda; Brown, Amber N; Peterson, Mark D; McGrath, Ryan

2017-01-01

Understanding factors that contribute to a student's selection of an exercise science-related major is important to student success, higher education and industry. This study sought to 1) better understand why undergraduate students study an exercise science-related major, 2) determine whether positive influences to study an exercise science-related major differ by academic classification, and 3) identify what student's aspirations are after graduation. Department administrators from four-year colleges and universities offering an exercise science-related major in the Northwest Region of the United States (i.e., Idaho, Montana, Oregon, and Washington) were contacted. Cooperating department administrators were given self-reported questionnaires for students to complete using a snowball sampling method. A total of 388 participants completed the questionnaire. Interest in the subject and potential job opportunities were the most common reasons to study an exercise science-related major. Self-reported Holland's codes identified that realistic and social personalities were most prevalent among participants. Seniors rated a friend's influence and college advisors as stronger influences to study an exercise science-related major compared to freshmen. Pay in the field was a stronger influence for freshmen to study an exercise science-related major than for fifth-year seniors, whereas freshmen were less influenced by introductory courses to study an exercise-science related major than fifth-year seniors. The majority of undergraduate students studying an exercise science-related major planned on attending graduate school after completing their baccalaureate degree. These findings can be used to help guide undeclared students and better serve undergraduates enrolled in an exercise science-related major.
Factors affecting dance exercise performance in students at a special needs school.

PubMed

Ito, Yukiko; Hiramoto, Izumi; Kodama, Hideya

2017-09-01

In Japan, dance exercise has been introduced as a compulsory element of health and physical education, but there is a considerable discrepancy in the levels of performance among students with intellectual disability (ID) at special needs schools. The aim of this study was therefore to identify the factors affecting the performance of dance exercise in students with ID. A 4 month dance exercise program was implemented for junior high school students at a special needs school, and the performance of 32 students at 22 sessions was assessed quantitatively according to calorie use during exercise and performance proficiency score. The measures were compared according to gender, age, body mass index, diagnosis, and development quotient (DQ) score. Performance in many students improved with repetition and reached the highest attainment level at around the third month. Male gender and older age had a significant positive impact on calorie use, whereas diagnosis of Down syndrome and higher DQ score had a significant positive impact on proficiency score. Four students with poor performance were all female students with autism. This study provides some possible explanations for differences in the levels of dance performance among students with ID. © 2017 Japan Pediatric Society.
Exercise behaviour and attitudes among fourth-year medical students at the University of British Columbia.

PubMed

Holtz, Kaila A; Kokotilo, Kristen J; Fitzgerald, Barbara E; Frank, Erica

2013-01-01

To describe the physical activity (PA) levels and counseling attitudes of Canadian undergraduate medical students. Online or paper survey. The University of British Columbia (UBC). Fourth-year medical students at UBC from 2007 to 2010. Physical activity levels, relationship between exercise behaviour and attitudes toward counseling, and student perception of training in the area of exercise prescription. A total of 546 out of 883 students participated in the survey (62% response rate). Sixty-four percent of students met the Canadian Society for Exercise Physiology 2011 recommendations for PA. Attitudes toward healthy living were related to PA levels, but the rate of counseling patients about exercise was not; however, students who engaged in more strenuous PA were more likely to perceive exercise counseling as being highly relevant to future clinical practice (P = .018). Overall, 69% of students perceived exercise counseling to be highly relevant to clinical practice, but 86% thought that their training in this area was less than extensive. Fourth-year UBC medical students engage in more strenuous PA than average age-matched Canadians, which affects their attitudes toward perceived future counseling practices. Encouraging more student participation in strenuous PA and encouraging academic training in the area of exercise counseling might be important next steps in preparing future physicians to effectively prescribe exercise to their patients.
Effects of smoking and aerobic exercise on male college students' metabolic syndrome risk factors.

PubMed

Kim, Jee-Youn; Yang, Yuhao; Sim, Young-Je

2018-04-01

[Purpose] The aim was to investigate the effects of university students' smoking and aerobic exercise on metabolic syndrome risk factors. [Subjects and Methods] Twenty-three male students were randomly assigned to the following groups: exercise smoker (n=6), non-exercise smoker (n=6), exercise non-smoker (n=6), and non-exercise non-smoker (n=5). A basketball exercise program was conducted three times per week (70 minutes per session) for 8 weeks with exercise intensity set at 50-80% of heart rate reserve. After 8 weeks, the variables of risk factors for metabolic syndrome were obtained. [Results] Systolic blood pressure and diastolic blood pressure were significantly decreased in the exercise non-smoker group and significantly increased in the non-exercise smoker group. Waist circumference was significantly reduced in both exercise groups regardless of smoking and significantly increased in the non-exercise smoker group. Triglyceride, high-density lipoprotein-cholesterol, and fasting plasma glucose showed no differences between the groups. [Conclusion] Obesity and smoking management should be conducted together for students as well as for those with metabolic syndrome risk factors. It is recommended that more students participate in such programs, and exercise programs should be further developed and diversified to prevent metabolic syndrome and cardiovascular diseases.
Physiology Laboratories Quantifying Gas Exchange in Health and Disease.

ERIC Educational Resources Information Center

Olson, L. E.

1985-01-01

Describes two quantitatively-oriented physiology laboratories for veterinary students. The laboratory exercises incorporate the procedures of radiology and physical examination with measurement of pulmonary function. Specific laboratory objectives, procedures and equipment needed for diagnoses of the pathologies are listed. (ML)
Personal and Clinical Exercise-Related Attitudes and Behaviors of Freshmen U.S. Medical Students

ERIC Educational Resources Information Center

Frank, Erica; Galuska, Deborah A.; Elon, Lisa K.; Wright, Elsa H.

2004-01-01

To determine personal and clinical exercise-related attitudes and behaviors of freshmen U.S. medical students, we surveyed 1,906 entering freshman medical students (response rate=87%; average age=24 years) in 17 U.S. medical schools. Students reported a median of 45 min/day of exercise, 80 min/week each of mild and moderate exercise, and 100…
Teaching Chromatography Using Virtual Laboratory Exercises

ERIC Educational Resources Information Center

Stone, David C.

2007-01-01

Though deceptively simple to teach, chromatography presents many nuances and complex interactions that challenge both student and instructor. Time and instrumentation provide major obstacles to a thorough examination of these details in the laboratory. Modern chromatographic method-development software provides an opportunity to overcome this,…

Students' Satisfaction toward the Services of the Chemical Laboratory

ERIC Educational Resources Information Center

Lukum, Astin; Paramata, Yoseph

2015-01-01

Chemistry Laboratory serves all of the students that were programmed chemistry laboratory works. The satisfaction of the students was studied that involving 50 students. The study was conducted to measure the students' satisfaction towards the services offered by the laboratory. Measurement of the students' satisfaction was conducted using…
A Cochlear Implant Signal Processing Lab: Exploration of a Problem-Based Learning Exercise

ERIC Educational Resources Information Center

Bhatti, P. T.; McClellan, J. H.

2011-01-01

This paper presents an introductory signal processing laboratory and examines this laboratory exercise in the context of problem-based learning (PBL). Centered in a real-world application, a cochlear implant, the exercise challenged students to demonstrate a working software-based signal processor. Partnering in groups of two or three, second-year…
An "in Silico" DNA Cloning Experiment for the Biochemistry Laboratory

ERIC Educational Resources Information Center

Elkins, Kelly M.

2011-01-01

This laboratory exercise introduces students to concepts in recombinant DNA technology while accommodating a major semester project in protein purification, structure, and function in a biochemistry laboratory for junior- and senior-level undergraduate students. It is also suitable for forensic science courses focused in DNA biology and advanced…
A laboratory exercise using a physical model for demonstrating countercurrent heat exchange.

PubMed

Loudon, Catherine; Davis-Berg, Elizabeth C; Botz, Jason T

2012-03-01

A physical model was used in a laboratory exercise to teach students about countercurrent exchange mechanisms. Countercurrent exchange is the transport of heat or chemicals between fluids moving in opposite directions separated by a permeable barrier (such as blood within adjacent blood vessels flowing in opposite directions). Greater exchange of heat or chemicals between the fluids occurs when the flows are in opposite directions (countercurrent) than in the same direction (concurrent). When a vessel loops back on itself, countercurrent exchange can occur between the two arms of the loop, minimizing loss or uptake at the bend of the loop. Comprehension of the physical principles underlying countercurrent exchange helps students to understand how kidneys work and how modifications of a circulatory system can influence the movement of heat or chemicals to promote or minimize exchange and reinforces the concept that heat and chemicals move down their temperature or concentration gradients, respectively. One example of a well-documented countercurrent exchanger is the close arrangement of veins and arteries inside bird legs; therefore, the setup was arranged to mimic blood vessels inside a bird leg, using water flowing inside tubing as a physical proxy for blood flow within blood vessels.
An inter- laboratory proficiency testing exercise for rabies diagnosis in Latin America and the Caribbean

PubMed Central

Clavijo, Alfonso; Freire de Carvalho, Mary H.; Orciari, Lillian A.; Velasco-Villa, Andres; Ellison, James A.; Greenberg, Lauren; Yager, Pamela A.; Green, Douglas B.; Vigilato, Marco A.; Cosivi, Ottorino; Del Rio-Vilas, Victor J.

2017-01-01

The direct fluorescent antibody test (DFA), is performed in all rabies reference laboratories across Latin America and the Caribbean (LAC). Despite DFA being a critical capacity in the control of rabies, there is not a standardized protocol in the region. We describe the results of the first inter-laboratory proficiency exercise of national rabies laboratories in LAC countries as part of the regional efforts towards dog-maintained rabies elimination in the American region. Twenty three laboratories affiliated to the Ministries of Health and Ministries of Agriculture participated in this exercise. In addition, the laboratories completed an online questionnaire to assess laboratory practices. Answers to the online questionnaire indicated large variability in the laboratories throughput, equipment used, protocols availability, quality control standards and biosafety requirements. Our results will inform actions to improve and harmonize laboratory rabies capacities across LAC in support for the regional efforts towards elimination of dog-maintained rabies. PMID:28369139
Multiprog virtual laboratory applied to PLC programming learning

NASA Astrophysics Data System (ADS)

Shyr, Wen-Jye

2010-10-01

This study develops a Multiprog virtual laboratory for a mechatronics education designed to teach how to programme a programmable logic controller (PLC). The study was carried out with 34 students in the Department of Industry Education and Technology at National Changhua University of Education in Taiwan. In total, 17 students were assigned to each group, experimental and control. Two laboratory exercises were designed to provide students with experience in PLC programming. The results show that the experiments supported by Multiprog virtual laboratory user-friendly control interfaces generate positive meaningful results in regard to students' knowledge and understanding of the material.
A Laboratory Exercise with Related Rates.

ERIC Educational Resources Information Center

Sworder, Steven C.

A laboratory experiment, based on a simple electric circuit that can be used to demonstrate the existence of real-world "related rates" problems, is outlined and an equation for voltage across the capacitor terminals during discharge is derived. The necessary materials, setup methods, and experimental problems are described. A student laboratory…
Preparing to Lead: A Leadership Philosophy Exercise for Business Students

ERIC Educational Resources Information Center

Tyran, Kristi Lewis

2017-01-01

This article introduces a leadership philosophy exercise where students reflect on their values and prepare a statement of what they intend to do as a leader in their careers. This exercise has the potential to add value to leadership classes or seminars where personal leadership is the focus. By using the leadership philosophy exercise, I argue…
Physical Activity, Exercise, and Sedentary Behavior in College Students.

ERIC Educational Resources Information Center

Buckworth, Janet; Nigg, Claudio

2004-01-01

The authors examined the relationship between physical activity, exercise, and sedentary behaviors in 493 college students who were enrolled in 10 conditioning activity classes and had completed questionnaires at the beginning of the course. They analyzed sedentary activities and indicators of participation in exercise and physical activity by…
Classroom to Community: Field Studies for Exercise Science Students

ERIC Educational Resources Information Center

Melton, Deana; Dail, Teresa K.

2017-01-01

The field of kinesiology has seen growth in terms of the number of highly specialized subdisciplines, such as exercise physiology, motor learning, biomechanics, sport and exercise psychology, and fitness management. While some undergraduate students may be comfortable with a chosen concentration, others may enter the kinesiology curriculum lacking…
Symptoms of exercise dependence and physical activity in students.

PubMed

MacLaren, Vance V; Best, Lisa A

2007-12-01

Health professionals recognize the benefits of moderate physical activity and encourage clients to engage in some form of activity on a regular basis. In spite of these recognized benefits, there are growing concerns that some may exercise at levels detrimental to health. The term exercise dependence refers to those individuals whose extreme exercise schedules interfere with their social, occupational, and family lives. The purpose of this study was to examine the relationship between weekly exercise habits and scores on the Exercise Dependence Questionnaire in a sample of undergraduate students (213 women and 79 men). Overall, participants who reported high activity scored higher than those reporting low activity on subscales measuring interference with family and social life, positive reward, withdrawal, exercise for social reasons, exercise for health reasons, and stereotyped behavior.
Effectiveness of inquiry-based learning in an undergraduate exercise physiology course.

PubMed

Nybo, Lars; May, Michael

2015-06-01

The present study was conducted to investigate the effects of changing a laboratory physiology course for undergraduate students from a traditional step-by-step guided structure to an inquiry-based approach. With this aim in mind, quantitative and qualitative evaluations of learning outcomes (individual subject-specific tests and group interviews) were performed for a laboratory course in cardiorespiratory exercise physiology that was conducted in one year with a traditional step-by-step guided manual (traditional course) and the next year completed with an inquiry-based structure (I-based course). The I-based course was a guided inquiry course where students had to design the experimental protocol and conduct their own study on the basis of certain predefined criteria (i.e., they should evaluate respiratory responses to submaximal and maximal exercise and provide indirect and direct measures of aerobic exercise capacity). The results indicated that the overall time spent on the experimental course as well as self-evaluated learning outcomes were similar across groups. However, students in the I-based course used more time in preparation (102 ± 5 min) than students in the traditional course (42 ± 3 min, P < 0.05), and 65 ± 5% students in the I-based course searched for additional literature before experimentation compared with only 2 ± 1% students in the traditional course. Furthermore, students in the I-based course achieved a higher (P < 0.05) average score on the quantitative test (45 ± 3%) compared with students in the traditional course (31 ± 4%). Although students were unfamiliar with cardiorespiratory exercise physiology and the experimental methods before the course, it appears that an inquiry-based approach rather than one that provides students with step-by-step instructions may benefit learning outcomes in a laboratory physiology course. Copyright © 2015 The American Physiological Society.
A study of the impact of collaborative learning on student learning of major concepts in a microbiology laboratory exercise

NASA Astrophysics Data System (ADS)

Baumgarten, Kristyne A.

This study investigated the possible relationship between collaborative learning strategies and the learning of core concepts. This study examined the differences between two groups of nursing students enrolled in an introductory microbiology laboratory course. The control group consisted of students enrolled in sections taught in the traditional method. The experimental group consisted of those students enrolled in the sections using collaborative learning strategies. The groups were assessed on their degrees of learning core concepts using a pre-test/post-test method. Scores from the groups' laboratory reports were also analyzed. There was no difference in the two group's pre-test scores. The post-test scores of the experimental group averaged 11 points higher than the scores of the control group. The lab report scores of the experimental group averaged 15 points higher than those scores of the control group. The data generated from this study demonstrated that collaborative learning strategies can be used to increase students learning of core concepts in microbiology labs.
Knowledge of students attending a high school in Pretoria, South Africa, on diet, nutrition and exercise.

PubMed

Letlape, S V; Mokwena, K; Oguntibeju, O O

2010-12-01

The objective of this study was to ascertain the knowledge of students on the composition of a healthy diet, daily nutritional requirements and the importance of regular exercise. A cross-sectional survey using a self-administered questionnaire with closed and open-ended questions to assess students 'knowledge on diet, nutrition and exercise was conducted. The study group were students of Tswaing High School in Pretoria, South Africa, who were in attendance on a particular day when the study was conducted and who consented to participate in the study Only 500 students of the school participated in the study Results showed that 77% of the students do not have adequate knowledge on diet, nutrition and exercise while 23% of the students showed satisfactory knowledge. Approximately 26% and 16% of the students reported that they participated in rigorous and moderate exercise respectively The study also showed that the majority of the students were however not engaged in physical activities. Students at Tswaing High School do not have adequate knowledge on nutrition, diet and exercise. Their views on what exercise entails were found not to be satisfactory. Programmes/ information or seminars that could assist to inform students on the importance of diet and exercise are therefore suggested.
Wiki Laboratory Notebooks: Supporting Student Learning in Collaborative Inquiry-Based Laboratory Experiments

NASA Astrophysics Data System (ADS)

Lawrie, Gwendolyn Angela; Grøndahl, Lisbeth; Boman, Simon; Andrews, Trish

2016-06-01

Recent examples of high-impact teaching practices in the undergraduate chemistry laboratory that include course-based undergraduate research experiences and inquiry-based experiments require new approaches to assessing individual student learning outcomes. Instructors require tools and strategies that can provide them with insight into individual student contributions to collaborative group/teamwork throughout the processes of experimental design, data analysis, display and communication of their outcomes in relation to their research question(s). Traditional assessments in the form of laboratory notebooks or experimental reports provide limited insight into the processes of collaborative inquiry-based activities. A wiki environment offers a collaborative domain that can potentially support collaborative laboratory processes and scientific record keeping. In this study, the effectiveness of the wiki in supporting laboratory learning and assessment has been evaluated through analysis of the content and histories for three consenting, participating groups of students. The conversational framework has been applied to map the relationships between the instructor, tutor, students and laboratory activities. Analytics that have been applied to the wiki platform include: character counts, page views, edits, timelines and the extent and nature of the contribution by each student to the wiki. Student perceptions of both the role and the impact of the wiki on their experiences and processes have also been collected. Evidence has emerged from this study that the wiki environment has enhanced co-construction of understanding of both the experimental process and subsequent communication of outcomes and data. A number of features are identified to support success in the use of the wiki platform for laboratory notebooks.
Instrumental Analysis Chemistry Laboratory

ERIC Educational Resources Information Center

Munoz de la Pena, Arsenio; Gonzalez-Gomez, David; Munoz de la Pena, David; Gomez-Estern, Fabio; Sequedo, Manuel Sanchez

2013-01-01

designed for automating the collection and assessment of laboratory exercises is presented. This Web-based system has been extensively used in engineering courses such as control systems, mechanics, and computer programming. Goodle GMS allows the students to submit their results to a…
Laboratory Measures of Filtration by Freshwater Mussels: An Activity to Introduce Biology Students to an Increasingly Threatened Group of Organisms

ERIC Educational Resources Information Center

Smith, Michael J.; Shaffer, Julie J.; Koupal, Keith D.; Hoback, W. Wyatt

2012-01-01

Many aquatic organisms survive by filter feeding from the surrounding water and capturing food particles. We developed a laboratory exercise that allows students to measure the effects of filtering by fresh water mussels on water turbidity. Mussels were acquired from Wards Scientific and exposed to a solution of baker's yeast. Over a period of one…
How Do Learning Outcomes, Assessments and Student Engagement in a Fully Online Geoscience Laboratory Compare to Those Of The Original Hands-on Exercise?

NASA Astrophysics Data System (ADS)

Jones, F. M.

2015-12-01

In a third year geoscience elective for BSc majors, we adapted several active f2f learning strategies for an equivalent fully online version of the course. In particular, we converted a hands-on laboratory including analysis and interpretation of hand-specimens, sketching results and peer-to-peer discussion of scientific implications. This study compares learning outcomes in both formats and describes resources that make engaging, effective and efficient learning experiences for large classes in an asynchronous online environment. Our two hypotheses are: 1) a hands-on geology lab exercise can be converted for efficient fully online use without sacrificing feedback and assessment opportunities; 2) students find either the f2f or DE versions equally effective and enjoyable as learning experiences. Key components are an authentic context, interactive resources including sketching, strategies that enable efficient assessment and feedback on solo and group work, and asynchronous yet productive interaction with peers. Students in the f2f class handle real rock and fossil specimens, work with peers in the lab and classroom, and deliver most results including annotated figures on paper. DE students complete identical tasks using interactive high resolution figures and videos of specimens. Solo work is first delivered for automated assessment and feedback, then students engage asynchronously in small groups to improve results and discuss implications. Chronostratigraphy and other interpretations are sketched on prepared template images using a simple open-source sketching app that ensures equal access and consistent results that are efficient to assess by peers and instructors. Learning outcomes based on subsequent quizzes, sketches, and lab results (paper for f2f students and automated data entry for DE students), show that f2f and online students demonstrate knowledge and scientific interpretations of comparable quality. Effective engagement and group work are
How to Motivate Students to Study before They Enter the Lab

ERIC Educational Resources Information Center

Pogacnik, Lea; Cigic, Blaz

2006-01-01

Laboratory exercises constitute an important part of chemical and biochemical courses at the university level. Nevertheless, students frequently are insufficiently prepared for the practical work, which often reduces their work to the level of a technician. A system designed to motivate students to study prior to the laboratory exercise was…
Understanding Why Undergraduate Students Declare and Continue to Study an Exercise Science-Related Major

PubMed Central

VAARTSTRA, MATTHEW B.; KERCHER, VANESSA M.; START, AMANDA; BROWN, AMBER N.; PETERSON, MARK D.; MCGRATH, RYAN

2017-01-01

Understanding factors that contribute to a student’s selection of an exercise science-related major is important to student success, higher education and industry. This study sought to 1) better understand why undergraduate students study an exercise science-related major, 2) determine whether positive influences to study an exercise science-related major differ by academic classification, and 3) identify what student’s aspirations are after graduation. Department administrators from four-year colleges and universities offering an exercise science-related major in the Northwest Region of the United States (i.e., Idaho, Montana, Oregon, and Washington) were contacted. Cooperating department administrators were given self-reported questionnaires for students to complete using a snowball sampling method. A total of 388 participants completed the questionnaire. Interest in the subject and potential job opportunities were the most common reasons to study an exercise science-related major. Self-reported Holland’s codes identified that realistic and social personalities were most prevalent among participants. Seniors rated a friend’s influence and college advisors as stronger influences to study an exercise science-related major compared to freshmen. Pay in the field was a stronger influence for freshmen to study an exercise science-related major than for fifth-year seniors, whereas freshmen were less influenced by introductory courses to study an exercise-science related major than fifth-year seniors. The majority of undergraduate students studying an exercise science-related major planned on attending graduate school after completing their baccalaureate degree. These findings can be used to help guide undeclared students and better serve undergraduates enrolled in an exercise science-related major. PMID:28966716

Evaluation of cardiovascular risk-lowering health benefits accruing from laboratory-based, community-based and exercise-referral exercise programmes.

PubMed

Webb, R; Thompson, J E S; Ruffino, J-S; Davies, N A; Watkeys, L; Hooper, S; Jones, P M; Walters, G; Clayton, D; Thomas, A W; Morris, K; Llewellyn, D H; Ward, M; Wyatt-Williams, J; McDonnell, B J

2016-01-01

To evaluate the ability of community-based exercise programmes to facilitate public participation in exercise and hence improved cardiovascular health, we assessed the respective impacts of: a continuously monitored exercise programme based within our university (study 1); a Valleys Regional Park-facilitated community-based outdoor exercise programme (study 2); a Wales National Exercise Referral Scheme-delivered exercise-referral programme (study 3). Biomolecular (monocytic PPARγ target gene expression), vascular haemodynamic (central/peripheral blood pressure, arterial stiffness), clinical (insulin sensitivity, blood lipids) and anthropometric (body mass index, waist circumference, heart rate) parameters were investigated using RT-PCR, applanation tonometry, chemical analysis and standard anthropometric techniques. In studies 1-3, 22/28, 32/65 and 11/14 participants adhered to their respective exercise programmes, and underwent significant increases in physical activity levels. Importantly, beneficial effects similar to those seen in our previous studies (eg, modulations in expression of monocytic PPARγ target genes, decreases in blood pressure/arterial stiffness, improvements in blood lipids/insulin sensitivity) were observed (albeit to slightly differing extents) only in participants who adhered to their respective exercise programmes. While study 1 achieved more intense exercise and more pronounced beneficial effects, significant cardiovascular risk-lowering health benefits related to biomolecular markers, blood pressure, arterial stiffness and blood lipids were achieved via community/referral-based delivery modes in studies 2 and 3. Because cardiovascular health benefits were observed in all 3 studies, we conclude that the majority of benefits previously reported in laboratory-based studies can also be achieved in community-based/exercise-referral settings. These findings may be of use in guiding policymakers with regard to introduction and/or continued
Preparation of Lead Compounds: An Exercise in Applied Chemistry.

ERIC Educational Resources Information Center

Laing, Michael; And Others

1987-01-01

Describes an exercise developed at the University of Natal (South Africa) in which students visit a plant which manufactures a variety of lead compounds. Outlines the procedures for the laboratory preparation of lead compounds that students prepare with samples they collected at the plant. (TW)
Guaiacol Peroxidase Zymography for the Undergraduate Laboratory

ERIC Educational Resources Information Center

Wilkesman, Jeff; Castro, Diana; Contreras, Lellys M.; Kurz, Liliana

2014-01-01

This laboratory exercise presents a novel way to introduce undergraduate students to the specific detection of enzymatic activity by electrophoresis. First, students prepare a crude peroxidase extract and then analyze the homogenate via electrophoresis. Zymography, that is, a SDS-PAGE method to detect enzyme activity, is used to specifically…
An Exercise in Biological Control.

ERIC Educational Resources Information Center

Lennox, John; Duke, Michael

1997-01-01

Discusses the history of the use of pesticides and biological control. Introduces the concept of biological control as illustrated in the use of the entomopathogenic bacterium Bacillus thuringiensis and highlights laboratory demonstrations of Koch's postulates. Includes an exercise that offers the student and teacher several integrated learning…
GHSI Emergency Radionuclide Bioassay Laboratory Network - Summary of the Second Exercise

PubMed Central

Li, Chunsheng; Bartizel, Christine; Battisti, Paolo; Böttger, Axel; Bouvier, Céline; Capote-Cuellar, Antonio; Carr, Zhanat; Hammond, Derek; Hartmann, Martina; Heikkinen, Tarja; Jones, Robert L.; Kim, Eunjoo; Ko, Raymond; Koga, Roberto; Kukhta, Boris; Mitchell, Lorna; Morhard, Ryan; Paquet, Francois; Quayle, Debora; Rulik, Petr; Sadi, Baki; Sergei, Aleksanin; Sierra, Inmaculada; de Oliveira Sousa, Wanderson; Szabó, Gyula

2017-01-01

The Global Health Security Initiative (GHSI) established a laboratory network within the GHSI community to develop collective surge capacity for radionuclide bioassay in response to a radiological or nuclear emergency as a means of enhancing response capability, health outcomes and community resilience. GHSI partners conducted an exercise in collaboration with the WHO REMPAN (Radiation Emergency Medical Preparedness and Assistance Network) and the IAEA RANET (Response and Assistance Network), to test the participating laboratories (18) for their capabilities in in vitro assay of biological samples, using a urine sample spiked with multiple high-risk radionuclides (90Sr, 106Ru, 137Cs, and 239Pu). Laboratories were required to submit their reports within 72 hours following receipt of the sample, using a pre-formatted template, on the procedures, methods and techniques used to identify and quantify the radionuclides in the sample, as well as the bioassay results with a 95% confidence interval. All of the participating laboratories identified and measured all or some of the radionuclides in the sample. However, gaps were identified in both the procedures used to assay multiple radionuclides in one sample, as well as in the methods or techniques used to assay specific radionuclides in urine. Two third of the participating laboratories had difficulties in determining all the radionuclides in the sample. Results from this exercise indicate that challenges remain with respect to ensuring that results are delivered in a timely, consistent and reliable manner to support medical interventions. Laboratories within the networks are encouraged to work together to develop and maintain collective capabilities and capacity for emergency bioassay, which is an important component of radiation emergency response. PMID:27574317
An Hypothesis-Driven, Molecular Phylogenetics Exercise for College Biology Students

ERIC Educational Resources Information Center

Parker, Joel D.; Ziemba, Robert E.; Cahan, Sara Helms; Rissing, Steven W.

2004-01-01

This hypothesis-driven laboratory exercise teaches how DNA evidence can be used to investigate an organism's evolutionary history while providing practical modeling of the fundamental processes of gene transcription and translation. We used an inquiry-based approach to construct a laboratory around a nontrivial, open-ended evolutionary question…
Common student misconceptions in exercise physiology and biochemistry.

PubMed

Morton, James P; Doran, Dominic A; Maclaren, Don P M

2008-06-01

The present study represents a preliminary investigation designed to identify common misconceptions in students' understanding of physiological and biochemical topics within the academic domain of sport and exercise sciences. A specifically designed misconception inventory (consisting of 10 multiple-choice questions) was administered to a cohort of level 1, 2, and 3 undergraduate students enrolled in physiology and biochemistry-related modules of the BSc Sport Science degree at the authors' institute. Of the 10 misconceptions proposed by the authors, 9 misconceptions were confirmed. Of these nine misconceptions, only one misconception appeared to have been alleviated by the current teaching strategy employed during the progression from level 1 to 3 study. The remaining eight misconceptions prevailed throughout the course of the degree program, suggesting that students enter and leave university with the same misconceptions in certain areas of exercise physiology and biochemistry. The possible origins of these misconceptions are discussed, as are potential teaching strategies to prevent and/or remediate them for future years.
General Chemistry Students' Goals for Chemistry Laboratory Coursework

ERIC Educational Resources Information Center

DeKorver, Brittland K.; Towns, Marcy H.

2015-01-01

Little research exists on college students' learning goals in chemistry, let alone specifically pertaining to laboratory coursework. Because students' learning goals are linked to achievement and dependent on context, research on students' goals in the laboratory context may lead to better understanding about the efficacy of lab curricula. This…
Process Development in the Teaching Laboratory

NASA Astrophysics Data System (ADS)

Klein, Leonard C.; Dana, Susanne M.

1998-06-01

Many experiences in high school and undergraduate laboratories are well-tested cookbook recipes that have already been designed to yield optimal results; the well-known synthesis of aspirin is such an example. In this project for advanced placement or second-year high school chemistry students, students mimic the process development in industrial laboratories by investigating the effect of varying conditions in the synthesis of aspirin. The class decides on criteria that should be explored (quantity of catalyst, temperature of reaction, etc.). The class is then divided into several teams with each team assigned a variable to study. Each team must submit a proposal describing how they will explore the variable before they start their study. After data on yield and purity has been gathered and evaluated, students discuss which method is most desirable, based on their agreed-upon criteria. This exercise provides an opportunity for students to review many topics from the course (rate of reaction, limiting reagents, Beer's Law) while participating in a cooperative exercise designed to imitate industrial process development.
Creative Exercises in General Chemistry: A Student-Centered Assessment

ERIC Educational Resources Information Center

Lewis, Scott E.; Shaw, Janet L.; Freeman, Kathryn A.

2010-01-01

Creative exercises (CEs) are a form of assessment in which students are given a prompt and asked to write down as many distinct, correct, and relevant facts about the prompt as they can. Students receive credit for each fact that they include that is related to the prompt and distinct from the other facts they list. With CEs, students have an…
Implementing Computer Based Laboratories

NASA Astrophysics Data System (ADS)

Peterson, David

2001-11-01

Physics students at Francis Marion University will complete several required laboratory exercises utilizing computer-based Vernier probes. The simple pendulum, the acceleration due to gravity, simple harmonic motion, radioactive half lives, and radiation inverse square law experiments will be incorporated into calculus-based and algebra-based physics courses. Assessment of student learning and faculty satisfaction will be carried out by surveys and test results. Cost effectiveness and time effectiveness assessments will be presented. Majors in Computational Physics, Health Physics, Engineering, Chemistry, Mathematics and Biology take these courses, and assessments will be categorized by major. To enhance the computer skills of students enrolled in the courses, MAPLE will be used for further analysis of the data acquired during the experiments. Assessment of these enhancement exercises will also be presented.
Student Teachers' Attitudes about Basic Physics Laboratory

ERIC Educational Resources Information Center

Yesilyurt, Mustafa

2004-01-01

In this study an attitude questionnaire was developed and applied to identify student teachers' interests and attitudes for basic physics laboratory. In physics laboratory practices run by a higher education institution a new attitude questionnaire was developed and applied twice in two terms by researchers to increase student teachers' success…
Exercise- and Hypoxia-Induced Anaerobic Metabolism and Recovery: A Student Laboratory Exercise Using Teleost Fish

ERIC Educational Resources Information Center

Rees, B. B.; Boily, P.; Williamson, L. A. C.

2009-01-01

Anaerobic metabolism is recruited in vertebrates under conditions of intense exercise or lowered environmental oxygen availability (hypoxia), typically resulting in the accumulation of lactate in blood and tissues. Lactate will be cleared over time after the reoxygenation of tissues, eventually returning to control levels. Here, we present a…
Mindfulness Meditation Versus Physical Exercise in the Management of Depression Among Nursing Students.

PubMed

Alsaraireh, Faris Abdelkarim; Aloush, Sami Mohammad

2017-10-01

Depression among nursing students is an ongoing problem. Several psychotherapies have been suggested as alternatives to antidepressants in the management of depression. The aim of this randomized controlled study was to compare the effectiveness of mindfulness meditation versus physical exercise in the management of depression among nursing students. A sample of 181 soon-to-graduate nursing students participated in the study and were assigned at random to one of two therapies: physical exercise (n = 90) or mindfulness meditation (n = 91). The Center for Epidemiologic Studies Depression Scale was completed by the participants in both groups prior to the therapies and after completion. The findings indicated that both therapies were effective in the management of depression. However, mindfulness meditation is more effective than physical exercise. Mindfulness meditation is recommended over physical exercise in the management of depression among undergraduate nursing students. [J Nurs Educ. 2017;56(10):599-604.]. Copyright 2017, SLACK Incorporated.
The study of medical students' attitudes toward exercise for health promotion in Phramongkutklao College of Medicine.

PubMed

Ing-Arahm, Rungsima; Suppuang, Arunya; Imjaijitt, Worarachanee

2010-11-01

Phramongkutklao College of Medicine is a military medical school and also a health promotion school. As a result, encouraging these medical students to have good attitude toward exercise is considered an important mission for the college. To study the attitudes of medical students at Phramongkutklao College of Medicine about exercise for health promotion. This survey research was carried out in 382 medical students in Academic Year 2008 using questionnaires including personal information, attitude testing and open-ended questions. Statistical analysis was conducted using descriptive analysis: percentage and mean and comparative analysis: t-test and F-test. The overall attitudes of medical students toward exercise were good. The attitudes of the medical cadets were better than those of the civilian medical students. The attitudes and also knowledge about exercise of the higher-year students were generally better than those of the lower-year ones. The attitudes of healthy medical students were higher than those of unhealthy ones. No significant difference in attitude was found between male and female students and between those with different Body Mass Indexes (BMI) and those with different in exercise duration and frequency. The overall medical students' attitudes toward exercise for health promotion in Phramongkutklao College of Medicine were good. The influencial factors were found to be status of medical students, stage of medical study and health status.
Computer laboratory in medical education for medical students.

PubMed

Hercigonja-Szekeres, Mira; Marinović, Darko; Kern, Josipa

2009-01-01

Five generations of second year students at the Zagreb University School of Medicine were interviewed through an anonymous questionnaire on their use of personal computers, Internet, computer laboratories and computer-assisted education in general. Results show an advance in students' usage of information and communication technology during the period from 1998/99 to 2002/03. However, their positive opinion about computer laboratory depends on installed capacities: the better the computer laboratory technology, the better the students' acceptance and use of it.
Industry and Academic Consortium for Computer Based Subsurface Geology Laboratory

NASA Astrophysics Data System (ADS)

Brown, A. L.; Nunn, J. A.; Sears, S. O.

2008-12-01

Twenty two licenses for Petrel Software acquired through a grant from Schlumberger are being used to redesign the laboratory portion of Subsurface Geology at Louisiana State University. The course redesign is a cooperative effort between LSU's Geology and Geophysics and Petroleum Engineering Departments and Schlumberger's Technical Training Division. In spring 2008, two laboratory sections were taught with 22 students in each section. The class contained geology majors, petroleum engineering majors, and geology graduate students. Limited enrollments and 3 hour labs make it possible to incorporate hands-on visualization, animation, manipulation of data and images, and access to geological data available online. 24/7 access to the laboratory and step by step instructions for Petrel exercises strongly promoted peer instruction and individual learning. Goals of the course redesign include: enhancing visualization of earth materials; strengthening student's ability to acquire, manage, and interpret multifaceted geological information; fostering critical thinking, the scientific method; improving student communication skills; providing cross training between geologists and engineers and increasing the quantity, quality, and diversity of students pursuing Earth Science and Petroleum Engineering careers. IT resources available in the laboratory provide students with sophisticated visualization tools, allowing them to switch between 2-D and 3-D reconstructions more seamlessly, and enabling them to manipulate larger integrated data-sets, thus permitting more time for critical thinking and hypothesis testing. IT resources also enable faculty and students to simultaneously work with the software to visually interrogate a 3D data set and immediately test hypothesis formulated in class. Preliminary evaluation of class results indicate that students found MS-Windows based Petrel easy to learn. By the end of the semester, students were able to not only map horizons and faults
Attitudes of Healthcare Students on Gross Anatomy Laboratory Sessions

ERIC Educational Resources Information Center

Kawashiro, Yukiko; Anahara, Reiko; Kohno, Toshihiko; Mori, Chisato; Matsuno, Yoshiharu

2009-01-01

At Chiba University, gross anatomy laboratory sessions ("laboratories") are required for physical therapy students. Though most physical therapy schools require their students to participate in laboratories so that they will better understand the structure of the human body, few data exist on the value of these laboratories specifically…
Are Chicken Embryos Endotherms or Ectotherms? A Laboratory Exercise Integrating Concepts in Thermoregulation and Metabolism

ERIC Educational Resources Information Center

Hiebert, Sara M; Noveral, Jocelyne

2007-01-01

This investigative laboratory exercise uses the different relations between ambient temperature and metabolic rate in endotherms and ectotherms as a core concept to answer the following question: What thermoregulatory mode is employed by chicken embryos? Emphasis is placed on the physiological concepts that can be taught with this exercise,…
The Language Laboratory and Modern Language Teaching. Revised Edition.

ERIC Educational Resources Information Center

Stack, Edward M.

Since the audiolingual forms of a foreign language (hearing and speaking) must be controlled before the graphic skills (reading and writing) are taught, exercises in a language laboratory, which affords students intensive, active, individual drill, ought to precede written exercises on the same material. The three major forms of language…

A Technique Oriented Freshman Laboratory Program

ERIC Educational Resources Information Center

Palma, R. J., Sr.

1975-01-01

Describes a program built on the philosophy that laboratory exercises were to be exclusively reserved for those concepts which could not be taught more effectively by other pedagogical techniques. Presents faculty and student criticisms of the program. (GS)
Possible Link between Medical Students' Motivation for Academic Work and Time Engaged in Physical Exercise

ERIC Educational Resources Information Center

Aung, Myo Nyein; Somboonwong, Juraiporn; Jaroonvanichkul, Vorapol; Wannakrairot, Pongsak

2016-01-01

Physical exercise results in an active well-being. It is likely that students' engagement in physical exercise keeps them motivated to perform academic endeavors. This study aimed to assess the relation of time engaged in physical exercise with medical students' motivation for academic work. Prospectively, 296 second-year medical students…
GHSI EMERGENCY RADIONUCLIDE BIOASSAY LABORATORY NETWORK - SUMMARY OF THE SECOND EXERCISE.

PubMed

Li, Chunsheng; Bartizel, Christine; Battisti, Paolo; Böttger, Axel; Bouvier, Céline; Capote-Cuellar, Antonio; Carr, Zhanat; Hammond, Derek; Hartmann, Martina; Heikkinen, Tarja; Jones, Robert L; Kim, Eunjoo; Ko, Raymond; Koga, Roberto; Kukhta, Boris; Mitchell, Lorna; Morhard, Ryan; Paquet, Francois; Quayle, Debora; Rulik, Petr; Sadi, Baki; Sergei, Aleksanin; Sierra, Inmaculada; de Oliveira Sousa, Wanderson; Szab, Gyula

2017-05-01

The Global Health Security Initiative (GHSI) established a laboratory network within the GHSI community to develop collective surge capacity for radionuclide bioassay in response to a radiological or nuclear emergency as a means of enhancing response capability, health outcomes and community resilience. GHSI partners conducted an exercise in collaboration with the WHO Radiation Emergency Medical Preparedness and Assistance Network and the IAEA Response and Assistance Network, to test the participating laboratories (18) for their capabilities in in vitro assay of biological samples, using a urine sample spiked with multiple high-risk radionuclides (90Sr, 106Ru, 137Cs, and 239Pu). Laboratories were required to submit their reports within 72 h following receipt of the sample, using a pre-formatted template, on the procedures, methods and techniques used to identify and quantify the radionuclides in the sample, as well as the bioassay results with a 95% confidence interval. All of the participating laboratories identified and measured all or some of the radionuclides in the sample. However, gaps were identified in both the procedures used to assay multiple radionuclides in one sample, as well as in the methods or techniques used to assay specific radionuclides in urine. Two-third of the participating laboratories had difficulties in determining all the radionuclides in the sample. Results from this exercise indicate that challenges remain with respect to ensuring that results are delivered in a timely, consistent and reliable manner to support medical interventions. Laboratories within the networks are encouraged to work together to develop and maintain collective capabilities and capacity for emergency bioassay, which is an important component of radiation emergency response. © The Author 2016. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.
Teaching Acid/Base Physiology in the Laboratory

ERIC Educational Resources Information Center

Friis, Ulla G.; Plovsing, Ronni; Hansen, Klaus; Laursen, Bent G.; Wallstedt, Birgitta

2010-01-01

Acid/base homeostasis is one of the most difficult subdisciplines of physiology for medical students to master. A different approach, where theory and practice are linked, might help students develop a deeper understanding of acid/base homeostasis. We therefore set out to develop a laboratory exercise in acid/base physiology that would provide…
The efficacy of unsupervised home-based exercise regimens in comparison to supervised laboratory-based exercise training upon cardio-respiratory health facets.

PubMed

Blackwell, James; Atherton, Philip J; Smith, Kenneth; Doleman, Brett; Williams, John P; Lund, Jonathan N; Phillips, Bethan E

2017-09-01

Supervised high-intensity interval training (HIIT) can rapidly improve cardiorespiratory fitness (CRF). However, the effectiveness of time-efficient unsupervised home-based interventions is unknown. Eighteen volunteers completed either: laboratory-HIIT (L-HIIT); home-HIIT (H-HIIT) or home-isometric hand-grip training (H-IHGT). CRF improved significantly in L-HIIT and H-HIIT groups, with blood pressure improvements in the H-IHGT group only. H-HIIT offers a practical, time-efficient exercise mode to improve CRF, away from the laboratory environment. H-IHGT potentially provides a viable alternative to modify blood pressure in those unable to participate in whole-body exercise. © 2017 The Authors. Physiological Reports published by Wiley Periodicals, Inc. on behalf of The Physiological Society and the American Physiological Society.
Desktop Parallax and Proper Motion: A Laboratory Exercise on Astrometry of Asteroids from Project CLEA

NASA Astrophysics Data System (ADS)

Marschall, L. A.; Snyder, G. A.; Good, R. F.; Hayden, M. B.; Cooper, P. R.

1998-12-01

Students in introductory and advanced astronomy classes can now experience the process of discovering asteroids, can measure proper motions, and can actually see the parallax of real astronomical objects on the screen, using a new set of computer-based exercises from Project CLEA. The heart of the exercise is a sophisticated astrometry program "Astrometry of Asteroids", which is a restricted version of CLEA's research software "Tools for Astrometry" described elsewhere at this meeting. The program, as used in the teaching lab, allows students to read and display digital images, co-align pairs of images using designated reference stars, blink and identify moving objects on the pairs, compare images with charts produced from the HST Guide Star Catalog (GSC), and fit equatorial coordinates to the images using designated reference stars from the GSC. Complete technical manuals for the exercise are provided for the use of the instructor, and a set of digital images, in FITS format, is included for the exercise. A student manual is provided for an exercise in which students go through the step-by-step process of determining the tangential velocity of an asteroid. Students first examine a series of images of a near-earth asteroid taken over several hours, blinking pairs to identify the moving object. They next measure the equatorial coordinates on a half-dozen images, and from this calculate an angular velocity of the object. Finally, using a pair of images of the asteroid taken simultaneously at the National Undergraduate Research Observatory (NURO) and at Colgate University, they measure the parallax of the asteroid, and thus its distance, which enables them to convert the angular velocity into a tangential velocity. An optional set of 10 pairs of images is provided, some of which contain asteroids, so that students can try to "find the asteroid" for themselves. The software is extremely flexible, and though materials are provided for a self-contained exercise, teachers
Adding an Extra Dimension to What Students See through the Light Microscope: A Lab Exercise Demonstrating Critical Analysis for Microscopy Students

ERIC Educational Resources Information Center

Garrill, Ashley

2011-01-01

This article describes an undergraduate lab exercise that demonstrates the importance of students thinking critically about what they see through a microscope. The students are given growth data from tip-growing organisms that suggest the cells grow in a pulsatile manner. The students then critique this data in several exercises that incorporate…
College Students' Usage of Personal Music Players (PMP) during Exercise

ERIC Educational Resources Information Center

Barney, David; Gust, Anita; Liguori, Gary

2012-01-01

The purpose of this study was to investigate the use of personal music players (PMPs) during exercise, including their purpose(s), how they affect exercise, and the most common music listened to. A representative sample of 184 undergraduate students from two separate university wellness centers completed a 17-item, content validated questionnaire…
The student perspective of high school laboratory experiences

NASA Astrophysics Data System (ADS)

Lambert, R. Mitch

High school science laboratory experiences are an accepted teaching practice across the nation despite a lack of research evidence to support them. The purpose of this study was to examine the perspective of students---stakeholders often ignored---on these experiences. Insight into the students' perspective was explored progressively using a grounded theory methodology. Field observations of science classrooms led to an open-ended survey of high school science students, garnering 665 responses. Twelve student interviews then focused on the data and questions evolving from the survey. The student perspective on laboratory experiences revealed varied information based on individual experience. Concurrent analysis of the data revealed that although most students like (348/665) or sometimes like (270/665) these experiences, some consistent factors yielded negative experiences and prompted suggestions for improvement. The category of responses that emerged as the core idea focused on student understanding of the experience. Students desire to understand the why do, the how to, and the what it means of laboratory experiences. Lacking any one of these, the experience loses educational value for them. This single recurring theme crossed the boundaries of age, level in school, gender, and even the student view of lab experiences as positive or negative. This study suggests reflection on the current laboratory activities in which science teachers engage their students. Is the activity appropriate (as opposed to being merely a favorite), does it encourage learning, does it fit, does it operate at the appropriate level of inquiry, and finally what can science teachers do to integrate these activities into the classroom curriculum more effectively? Simply stated, what can teachers do so that students understand what to do, what's the point, and how that point fits into what they are learning outside the laboratory?
Adding Audio Supported Smartboard Lectures to an Introductory Astronomy Online Laboratory

NASA Astrophysics Data System (ADS)

Lahaise, U. G. L.

2003-12-01

SMART Board(TM) and RealProducer(R) Plus technologies were used to develop a series of narrated pre-lab introductory online lectures. Smartboard slides were created by capturing images from internet pages and power point slides, then annotated and saved as web pages using smartboard technology. Short audio files were recorded using the RealProducer Plus software which were then linked to individual slides. WebCT was used to deliver the online laboratory. Students in an Introductory Astronomy of the Solar System Online laboratory used the lectures to prepare for laboratory exercises. The narrated pre-lab lectures were added to six out of eight suitable laboratory exercises. A survey was given to the students to research their online laboratory experience, in general, and the impact of the narrated smartboard lectures on their learning success, specifically. Data were collected for two accelerated sessions. Results show that students find the online laboratory equally hard or harder than a separate online lecture. The accelerated format created great time pressure which negatively affected their study habits. About half of the students used the narrated pre-lab lectures consistently. Preliminary findings show that lab scores in the accelerated sessions were brought up to the level of full semester courses.
Using Model Organisms in an Undergraduate Laboratory to Link Genotype, Phenotype, and the Environment

ERIC Educational Resources Information Center

Jacobs-McDaniels, Nicole L.; Maine, Eleanor M.; Albertson, R. Craig; Wiles, Jason R.

2013-01-01

We developed laboratory exercises using zebrafish ("Danio rerio") and nematodes ("Caenorhabditis elegans") for a sophomore-level Integrative Biology Laboratory course. Students examined live wildtype zebrafish at different stages of development and noted shifts occurring in response to "fgf8a" deficiency. Students were introduced to development in…
Reisman exercises on the CEVIS in the U.S. Laboratory during Expedition 17

NASA Image and Video Library

2008-05-11

ISS017-E-006668 (11 May 2008) --- NASA astronaut Garrett Reisman, Expedition 17 flight engineer, exercises on the Cycle Ergometer with Vibration Isolation System (CEVIS) in the Destiny laboratory of the International Space Station.
A Novel Laboratory Approach for the Demonstration of Hemodynamic Principles: The Arterial Blood Flow Reflection

ERIC Educational Resources Information Center

Djelic, Marina; Mazic, Sanja; Zikic, Dejan

2013-01-01

In the frame of a laboratory training course for medicine students, a new approach for laboratory exercises has been applied to teach the phenomena of circulation. The exercise program included measurements of radial artery blood flow waveform for different age groups using a noninvasive optical sensor. Arterial wave reflection was identified by…
Drawing Students out: Using Sketching Exercises to Hone Observation Skills

ERIC Educational Resources Information Center

Weekes, Harry

2005-01-01

In this article, the author discusses how drawing exercise can be an invaluable tool in teaching Biology classes. The author uses drawing exercises and requires students to sketch everything from prepared slides of mitosis and plant anatomy to field sightings of birds and protists. His primary goal in integrating art into science is to hone…
First-year Engineering Education with the Creative Electrical Engineering Laboratory

NASA Astrophysics Data System (ADS)

Tsukamoto, Takehiko; Sugito, Tetsumasa; Ozeki, Osamu; Ushiroda, Sumio

The Department of Electrical and Electronic Engineering in Toyota National College of Technology has put great emphasis on fundamental subjects. We introduced the creative electrical engineering laboratory into the first-year engineering education since 1998. The laboratory concentrates on the practice exercise. The final questionnaire of students showed that our first-year education is very effective to promote students motivation and their scholastic ability in engineering.
The Relative Contribution of Dietary Habits, Leisure-Time Exercise, Exercise Attitude, and Body Mass Index to Self-Rated Health among College Students in Taiwan.

PubMed

Hsieh, Huey-Hong; Chang, Chia-Ming; Liu, Li-Wei; Huang, Hsiu-Chin

2018-05-11

Background : Self-rated health (SRH) is consistent with objective health status and can serve as a global measure of health status in the general population. The purpose of this study is to find the connections of dietary habits, leisure-time exercise, exercise attitude, and body mass index (BMI) to SRH among college students. Methods : The "dietary⁻exercise attitude and SRH" questionnaire was developed to investigate college students in Taiwan through the Internet. Partial least squares structural equation modeling (PLS-SEM) was used to test the relationship among them. Results : The reliability and validity were confirmed using PLS-SEM. The results found exercise habits, dietary habits, and BMI explained 26.5% of SRH. Poor dietary habits and being overweight led to bad health status (negative path coefficients to SRH). Additionally, the study found that positive exercise attitude had a positive relationship with exercise habits. Conclusions : Based on the results, college students should be well-informed of the potential threat of poor dietary habits and being overweight to health and should improve their attitude with respect to exercise so as to prevent overweight-related diseases.
Comparison of two exercise programs on general well-being of college students.

PubMed

Bass, Martha A; Enochs, Wendy K; DiBrezzo, Ro

2002-12-01

Responses to life stressors are associated with negative behaviors that may increase risk for illness and injury. The effect of high intensity exercise in reducing reactivity to psychological stress has been well documented among older people. The purpose of this study was to ascertain the effect of weight-training versus aerobic dance on psychological stress in college students. 45 students participated in a weight-training course, 35 students participated in aerobic dance classes, and 34 students served as a control group. The Survey of Recent Life Experiences was used to appraise stressfulness of current experiences before and after exercise intervention. On immediate retest after 8 wk. of weight-training perceived stress was significantly reduced when compared with an 8-wk. aerobic dance program, but there were no significant differences between the control group and the weight-training group or the aerobic dance group. These results suggest that a regular routine of low intensity exercise such as weight-training may reduce perceived stress on an immediate test.
Cross-Cultural Validation of Stages of Exercise Change Scale among Chinese College Students

ERIC Educational Resources Information Center

Keating, Xiaofen D.; Guan, Jianmin; Huang, Yong; Deng, Mingying; Wu, Yifeng; Qu, Shuhua

2005-01-01

The purpose of the study was to test the cross-cultural concurrent validity of the stages of exercise change scale (SECS) in Chinese college students. The original SECS was translated into Chinese (C-SECS). Students from four Chinese universities (N = 1843) participated in the study. The leisure-time exercise (LTE) questionnaire was used to…
Relation between contemplative exercises and an enriched psychology students' experience in a neuroscience course

PubMed Central

Levit Binnun, Nava; Tarrasch, Ricardo

2014-01-01

This article examines the relation of contemplative exercises with enhancement of students' experience during neuroscience studies. Short contemplative exercises inspired by the Buddhist tradition of self-inquiry were introduced in an undergraduate neuroscience course for psychology students. At the start of the class, all students were asked to participate in short “personal brain investigations” relevant to the topic presented. These investigations were aimed at bringing stable awareness to a specific perceptual, emotional, attentional, or cognitive process and observing it in a non-judgmental, non-personal way. In addition, students could choose to participate, for bonus credit, in a longer exercise designed to expand upon the weekly class activity. In the exercise, students continued their “personal brain investigations” for 10 min a day, 4 days a week. They wrote “lab reports” on their daily observations, obtained feedback from the teacher, and at the end of the year reviewed their reports and reflected upon their experiences during the semester. Out of 265 students, 102 students completed the bonus track and their final reflections were analyzed using qualitative methodology. In addition, 91 of the students answered a survey at the end of the course, 43 students participated in a quiz 1 year after course graduation, and the final grades of all students were collected and analyzed. Overall, students reported satisfaction from the exercises and felt they contributed to their learning experience. In the 1-year follow-up, the bonus-track students were significantly more likely than their peers to remember class material. The qualitative analysis of bonus-track students' reports revealed that the bonus-track process elicited positive feelings, helped students connect with class material and provided them with personal insights. In addition, students acquired contemplative skills, such as increased awareness and attention, non-judgmental attitudes, and
Prevalence of Exercise Addiction Symptomology and Disordered Eating in Australian Students Studying Nutrition and Dietetics.

PubMed

Rocks, Tetyana; Pelly, Fiona; Slater, Gary; Martin, Lisa Anne

2017-10-01

Previous research has reported the existence of disordered eating in students studying nutrition and dietetics. However, the occurrence of exercise addiction, previously linked to disordered eating, is poorly understood in this group. The main objective of this study was to explore the prevalence of self-reported symptoms of exercise addiction and the association with disordered eating in a sample of students studying nutrition and dietetics. A secondary objective was to compare the prevalence of exercise addiction to students enrolled in another health-related degree. We conducted a cross-sectional study in 165 undergraduate students. Participants were students of both sexes enrolled in nutrition and dietetics and occupational therapy degree programs at an Australian university in August 2013. Participants completed four validated questionnaires for assessment of exercise- and eating-related attitudes and behaviors measuring scores for exercise addiction, weekly volume of physical activity (PA), eating disorder symptoms, and cognitive restraint. Stretch stature and body mass were measured and body composition was assessed using dual energy x-ray absorptiometry. Independent t test, Mann-Whitney U test, and χ 2 test were completed to compare groups of students based on sex, degree, or eating attitudes. Spearman's correlation was performed to explore associations between continuous variables (exercise addiction scores, PA volume, and scores for eating attitudes and cognitive restraint). Approximately 23% of nutrition and dietetics students were found to be at risk of exercise addiction (20% females and 35% males; P=0.205), while the majority demonstrated some symptoms of exercise addiction. A similar proportion of at risk individuals was found in the female occupational therapy group (19%; P=1.000). In females (nutrition and dietetics and occupational therapy combined), the exercise addiction scores were associated with three other outcome measures: PA volume (r s

Synthesis and Characterization of Silver Nanoparticles for an Undergraduate Laboratory

ERIC Educational Resources Information Center

Orbaek, Alvin W.; McHale, Mary M.; Barron, Andrew R.

2015-01-01

The aim of this simple, quick, and safe laboratory exercise is to provide undergraduate students an introduction to nanotechnology using nanoparticle (NP) synthesis. Students are provided two procedures that allow for the synthesis of different yet controlled sizes of silver NPs. After preparing the NPs, the students perform UV-visible…
An Introductory Interprofessional Exercise for Healthcare Students

PubMed Central

Rege, Saumitra V.; Misto, Kara; Dollase, Richard; George, Paul

2012-01-01

Objective. To evaluate healthcare students’ perceptions of an introductory interprofessional exercise and their team dynamics. Design. A workshop was developed, combining second-year medical students, fourth-year nursing students, and third-year pharmacy students to work as an interdisciplinary team. The teams alternated between working together on patient cases focusing on chronic obstructive pulmonary disease and asthma, and on the evaluation of standardized pneumonia patients. Teams were given the patients' health information and no other instructions. A faculty member and the standardized patient evaluated the students using a teamwork global rating scale. Assessment. Student survey results showed a positive response to interprofessional teamwork. The faculty members and standardized patients reported that the students worked as a cohesive unit and demonstrated good team communication. Conclusions. This introductory interprofessional experience had a positive impact on the students’ understanding of collaboration and teamwork. This type of experience will help students foster future collaborations as healthcare providers. PMID:23129853
Concepts in Physical Education with Laboratories and Experiments. Second Edition.

ERIC Educational Resources Information Center

Corbin, Charles B.; And Others

This text is designed for student use in introductory course of physical education at the college level and deals with the specific areas of physical activity, exercise, health, physical fitness, skill learning, and body mechanics. Twenty concepts and thirty accompanying laboratory exercises suitable for both men and women are presented. Two…
Performing an Event Study: An Exercise for Finance Students

ERIC Educational Resources Information Center

Reese, William A., Jr.; Robins, Russell P.

2017-01-01

This exercise helps instructors teach students how to perform a simple event study. The study tests to see if stocks earn abnormal returns when added to the S&P 500. Students select a random sample of stocks that were added to the index between January 2000 and July 2015. The accompanying spreadsheet calculates cumulative abnormal returns and…
Kononenko exercises on the CEVIS in the U.S. Laboratory during Expedition 17

NASA Image and Video Library

2008-05-11

ISS017-E-006662 (11 May 2008) --- Russian Federal Space Agency cosmonaut Oleg Kononenko, Expedition 17 flight engineer, exercises on the Cycle Ergometer with Vibration Isolation System (CEVIS) in the Destiny laboratory of the International Space Station.
Virtual Laboratories to Achieve Higher-Order Learning in Fluid Mechanics

NASA Astrophysics Data System (ADS)

Ward, A. S.; Gooseff, M. N.; Toto, R.

2009-12-01

Bloom’s higher-order cognitive skills (analysis, evaluation, and synthesis) are recognized as necessary in engineering education, yet these are difficult to achieve in traditional lecture formats. Laboratory components supplement traditional lectures in an effort to emphasize active learning and provide higher-order challenges, but these laboratories are often subject to the constraints of (a) increasing student enrollment, (b) limited funding for operational, maintenance, and instructional expenses and (c) increasing demands on undergraduate student credit requirements. Here, we present results from a pilot project implementing virtual (or online) laboratory experiences as an alternative to a traditional laboratory experience in Fluid Mechanics, a required third year course. Students and faculty were surveyed to identify the topics that were most difficult, and virtual laboratory and design components developed to supplement lecture material. Each laboratory includes a traditional lab component, requiring student analysis and evaluation. The lab concludes with a design exercise, which imposes additional problem constraints and allows students to apply their laboratory observations to a real-world situation.
Science laboratory behavior strategies of students relative to performance in and attitude to laboratory work

NASA Astrophysics Data System (ADS)

Okebukola, Peter Akinsola

The relationship between science laboratory behavior strategies of students and performance in and attitude to laboratory work was investigated in an observational study of 160 laboratory sessions involving 600 class five (eleventh grade) biology students. Zero-order correlations between the behavior strategies and outcome measures reveal a set of low to strong relationships. Transmitting information, listening and nonlesson related behaviors exhibited low correlations with practical skills and the attitude measure. The correlations between manipulating apparatus and observation with practical skills measures were found to be strong. Multiple correlation analysis revealed that the behaviors of students in the laboratories observed accounted for a large percentage of the variance in the scores on manipulative skills and a low percentage on interpretation of data, responsibility, initiative, and work habits. One significant canonical correlation emerged. The loadings on this canonical variate indicate that the practical skills measures, i.e., planning and design, manipulative skills and conduct of experiments, observation and recording of data, and attitude to laboratory work made primary contributions to the canonical relationship. Suggestions as to how students can be encouraged to go beyond cookbook-like laboratories and develop a more favorable attitude to laboratory work are made.
Inadequate Sleep and Exercise Associated with Burnout and Depression Among Medical Students.

PubMed

Wolf, Megan R; Rosenstock, Jason B

2017-04-01

The authors studied whether low levels of exercise or inadequate sleep correlated with higher levels of burnout and depression in medical students. Medical students of all years at the University of Pittsburgh School of Medicine, Pittsburgh, PA, USA, were invited to participate in an anonymous online survey in Fall 2012 and Winter 2013. Validated measures were used to assess exercise, sleep, burnout, and depression. Response rates were 28.7 % at the beginning of the school year and 22.6 % at the middle of the school year. Burnout rates overall were 22.4 % at the beginning of the year and 19.2 % in the middle of the year. Eight percent of students screened positive for depression at the beginning of the year and 9.3 % in the middle of the year. Decreased exercise frequency was significantly correlated with lower professional efficacy. Pathological sleepiness was significantly associated with a higher prevalence of burnout. Inadequate sleep correlated with significantly lower professional efficacy and higher exhaustion scores. Burnout was associated with a positive depression screen. Positive depression screening, pathological sleepiness, and sleeping less than 7 h a night were independent predictors of burnout. Sleep habits, exercise, and a positive depression screen were associated with burnout risk within the medical student population.
Incorporating a Modified Problem-Based Learning Exercise in a Traditional Lecture and Lab-Based Dairy Products Course

ERIC Educational Resources Information Center

Liceaga, Andrea M.; Ballard, Tameshia S.; Skura, Brent J.

2011-01-01

A modified problem-based learning (PBL) exercise was implemented in a food science Dairy Products course, which had previously been taught in the traditional lecture and laboratory format only. The first 10 wk of the course consisted of weekly lectures and laboratory exercises. During the remaining 3 wk, students were presented with a case study…
Development and evaluation of a simulation exercise to prepare midwifery students for neonatal resuscitation.

PubMed

Carolan-Olah, Mary; Kruger, Gina; Brown, Vera; Lawton, Felicity; Mazzarino, Melissa

2016-01-01

Simulation provides opportunities for midwifery students to enhance their performance in emergency situations. Neonatal resuscitation is one such emergency and its management is a major concern for midwifery students. This project aimed to develop and evaluate a simulation exercise, for neonatal resuscitation, for 3rd year midwifery students. A quantitative survey design was employed using questions from two previously validated questionnaires: (1.) Student Satisfaction and Self-Confidence in Learning and (2.) the Clinical Teamwork Scale (CTS). Australian university. 40 final year midwifery students were invited to participate and 36 agreed to take part in the project. In pre-simulation questionnaires, students reported low levels of confidence in initiating care of an infant requiring resuscitation. Most anticipated that the simulation exercise would be useful to better prepare them respond to a neonatal emergency. Post-simulation questionnaires reported an increase in student confidence, with 30 of 36 students agreeing/ strongly agreeing that their confidence levels had improved. Nonetheless, an unexpected number of students reported a lack of familiarity with the equipment. The single simulation exercise evaluated in this project resulted in improved student confidence and greater knowledge and skills in neonatal resuscitation. However, deficits in handling emergency equipment, and in understanding the role of the student midwife/midwife in neonatal resuscitation, were also noted. For the future, the development and evaluation of a programme of simulation exercises, over a longer period, is warranted. This approach may reduce stress and better address student learning needs. Copyright © 2015. Published by Elsevier Ltd.
Qualitative analysis of medical student impressions of a narrative exercise in the third-year psychiatry clerkship.

PubMed

Garrison, David; Lyness, Jeffrey M; Frank, Julia B; Epstein, Ronald M

2011-01-01

Clinical clerkship directors and faculty undertake the challenge of teaching patient-centered communication to students who face the enormous doctor-centered task of learning diagnostic medicine. The authors examined students' written reactions to the narrative exercise, which, drawing from narrative medicine and narrative therapy, challenges students to be more patient-centered by writing a patient's life story and sharing it with that patient. During one-half of an academic year (2008-2009), the authors used qualitative methods to explore the range of medical student experiences with the narrative exercise in the psychiatry clerkship. During the study period, 46 medical students completed the exercise, and 44 (96%) submitted 367 comments for the research team to analyze. Four broad categories emerged: (1) communication, (2) insight, (3) hope, and (4) mixed or negative reactions. The most common theme was improved communication, which comprised the subcategories of enhanced active listening, opening up, and relationship building. Improved insights included student insights into their patients, as well as the facilitation of patient insights into themselves, especially regarding their own strengths and relationships. The exercise was well received by students: Only five comments were categorized as negative, and all of these related to difficulties selecting patients. Students reported many examples of improved patient-centered communication facilitated by the exercise. The narrative exercise may also promote a greater understanding of patients as complete human beings rather than diagnostic entities. The approach may be useful in educational settings beyond the psychiatry clerkship.
The Crystallization Clinic-A TA Orientation Exercise

NASA Astrophysics Data System (ADS)

Kandel, Marjorie

1999-01-01

Our orientation exercise for TAs in the organic laboratories is a Crystallization Clinic, and the main feature is a contest. Each TA has a different unknown solid to recrystallize. The products are judged by the students in the organic lab courses. Beauty of the crystals is the single criterion. The contest serves to refresh the TAs' technique and to give them empathy with the beginning students.
Imploding Soda Cans: From Demonstration to Guided-Inquiry Laboratory Activity

ERIC Educational Resources Information Center

Eichler, Jack F.

2009-01-01

A guided-inquiry exercise conducted in both the lecture and laboratory components of a college introductory chemistry course for non-science majors is described. The exercise gave students the opportunity to independently determine the relationship between the temperature of water in an aluminum soda can and the intensity of implosion upon placing…
Student Perceptions of Group-Based Competitive Exercises in the Chemistry Classroom

ERIC Educational Resources Information Center

Cannon, Kevin C.; Mody, Tina; Breen, Maureen P.

2008-01-01

A non-traditional teaching method that can operate as a vehicle for engaging students is group-based competitive exercises. These exercises combine cooperative learning with a competitive environment and may be employed to promote subject- and problem-based learning. Survey responses of college-level organic chemistry and biochemistry students…
Achievable Inquiry in the College Laboratory: The Mini-Journal

ERIC Educational Resources Information Center

Witzig, Stephen B.; Zhao, Ningfeng; Abell, Sandra K.; Weaver, Jan C.; Adams, John E.; Schmidt, Frank J.

2010-01-01

The authors engage students in inquiry-based learning by presenting laboratory exercises as mini-journal articles that mirror the format of a scientific journal article, including a title, authors, abstract, introduction, materials and methods, results, discussion, and citations. Students develop and carry out their follow-up investigation, then…
The Relative Contribution of Dietary Habits, Leisure-Time Exercise, Exercise Attitude, and Body Mass Index to Self-Rated Health among College Students in Taiwan

PubMed Central

Hsieh, Huey-Hong; Chang, Chia-Ming; Liu, Li-Wei; Huang, Hsiu-Chin

2018-01-01

Background: Self-rated health (SRH) is consistent with objective health status and can serve as a global measure of health status in the general population. The purpose of this study is to find the connections of dietary habits, leisure-time exercise, exercise attitude, and body mass index (BMI) to SRH among college students. Methods: The “dietary–exercise attitude and SRH” questionnaire was developed to investigate college students in Taiwan through the Internet. Partial least squares structural equation modeling (PLS-SEM) was used to test the relationship among them. Results: The reliability and validity were confirmed using PLS-SEM. The results found exercise habits, dietary habits, and BMI explained 26.5% of SRH. Poor dietary habits and being overweight led to bad health status (negative path coefficients to SRH). Additionally, the study found that positive exercise attitude had a positive relationship with exercise habits. Conclusions: Based on the results, college students should be well-informed of the potential threat of poor dietary habits and being overweight to health and should improve their attitude with respect to exercise so as to prevent overweight-related diseases. PMID:29751682
Professor Created On-line Biology Laboratory Course

NASA Technical Reports Server (NTRS)

Bowman, Arthur W.

2010-01-01

This paper will share the creation, implementation, and modification of an online college level general biology laboratory course offered for non-science majors as a part of a General Education Curriculum. The ability of professors to develop quality online laboratories will address a growing need in Higher Education as more institutions combine course sections and look for suitable alternative course delivery formats due to declining departmental budgets requiring reductions in staffing, equipment, and supplies. Also, there is an equal or greater need for more professors to develop the ability to create online laboratory experiences because many of the currently available online laboratory course packages from publishers do not always adequately parallel on-campus laboratory courses, or are not as aligned with the companion lecture sections. From a variety of scientific simulation and animation web sites, professors can easily identify material that closely fit the specific needs of their courses, instructional environment, and students that they serve. All too often, on-campus laboratory courses in the sciences provide what are termed confirmation experiences that do NOT allow students to experience science as would be carried out by scientists. Creatively developed online laboratory experiences can often provide the type of authentic investigative experiences that are not possible on-campus due to the time constraints of a typical two-hour, once-per-week-meeting laboratory course. In addition, online laboratory courses can address issues related to the need for students to more easily complete missing laboratory assignments, and to have opportunities to extend introductory exercises into more advanced undertakings where a greater sense of scientific discovery can be experienced. Professors are strongly encourages to begin creating online laboratory exercises for their courses, and to consider issues regarding assessment, copyrights, and Intellectual Property
[Association between time spent on physical exercise, sleep, homework and suspected myopia among students].

PubMed

Xu, S J; Wan, Y H; Xu, Z H; Zhang, H; Xu, L; Wang, B; Tao, F B

2016-02-01

To investigate the prevalence of suspected myopia among students and to examine the relationship between time spent on physical exercise, sleep, homework and suspected myopia. A total of 8 030 primary and secondary school students from 4(th) to 12(th) grades were selected from the National Student Constitution and Health Survey (NSCHS) in Anhui province in 2014. Time spent on exercise, sleep and homework per day were collected using a self-administrated questionnaire. Visual acuity was examined using the Standard Logarithmic Visual Acuity Chart. The overall prevalence of suspected myopia was 69.03%. Prevalence rates of suspected myopia appeared higher in girls, in urban students, with the highest in the 16 to 18 year-old groups. RESULTS from the multiple logistic regression analysis showed that the amount of time spent on physical exercise, sleep and homework per day were all significantly associated with suspected myopia. Suspected myopia was associated with longer time on physical exercise among students aged 8 to 12 years (OR=0.80, 95%CI: 0.64-0.99), and longer sleep time among students in the age groups of 13 to 15 years and 16 to 18 years (OR=0.73, 95% CI: 0.56-0.94;OR=0.38, 95% CI: 0.21-0.68, respectively). Longer time spent on homework significantly increased the risk of suspected myopia among students in the age groups of 8 to 12 years and 13 to 15 years (OR=1.41, 95%CI: 1.11-1.79; OR=1.74, 95% CI: 1.36-2.23, respectively). Suspected myopia appeared common among students. Comprehensive intervention programs focusing on sufficient physical exercise and sleep but less homework might help to prevent myopia among students at different ages.
Whitson exercises on the CEVIS in the U.S. Laboratory during Joint Operations

NASA Image and Video Library

2008-03-23

S123-E-008961 (23 March 2008) --- Astronaut Peggy Whitson, Expedition 16 commander, exercises on the Cycle Ergometer with Vibration Isolation System (CEVIS) in the Destiny laboratory of the International Space Station while Space Shuttle Endeavour remains docked with the station.
The impact of exercise performance dissatisfaction and physical exercise on symptoms of depression among college students: a gender comparison.

PubMed

Edman, Jeanne L; Lynch, Wesley C; Yates, Alayne

2014-01-01

Depression is a common psychological problem and females have been found to be at greater risk for this disorder than males. Although numerous studies have found that physical exercise is negatively associated with risk of depression, some studies suggest that negative exercise attitudes may increase the risk of depression. The present study used the survey method to examine the relationship between depressive symptoms, exercise performance dissatisfaction, body dissatisfaction, and physical exercise among a sample of 895 undergraduate university students. Females reported higher depression and exercise performance dissatisfaction scores than males; however, there were no gender differences in body dissatisfaction. Exercise performance dissatisfaction was positively associated with depression among both males and females. Physical exercise was negatively associated with depression among males, but not among females. The possibility of screening participants enrolled in exercise programs for performance dissatisfaction is discussed as negative exercise attitudes may diminish the positive impact of exercise on depressed mood.

A Water "Atlas" Exercise with Conservation Students.

ERIC Educational Resources Information Center

Wije, Chand

1992-01-01

Describes how a water atlas can be used as a tool in conservation courses. Presents a three stage approach to a classroom exercise. Includes textbook study of a significance of water as a resource, student preparation of a list of local and state of Ohio environmental issues, and collection or creation of maps to create an atlas. (DK)
Development, Evaluation and Use of a Student Experience Survey in Undergraduate Science Laboratories: The Advancing Science by Enhancing Learning in the Laboratory Student Laboratory Learning Experience Survey

NASA Astrophysics Data System (ADS)

Barrie, Simon C.; Bucat, Robert B.; Buntine, Mark A.; Burke da Silva, Karen; Crisp, Geoffrey T.; George, Adrian V.; Jamie, Ian M.; Kable, Scott H.; Lim, Kieran F.; Pyke, Simon M.; Read, Justin R.; Sharma, Manjula D.; Yeung, Alexandra

2015-07-01

Student experience surveys have become increasingly popular to probe various aspects of processes and outcomes in higher education, such as measuring student perceptions of the learning environment and identifying aspects that could be improved. This paper reports on a particular survey for evaluating individual experiments that has been developed over some 15 years as part of a large national Australian study pertaining to the area of undergraduate laboratories-Advancing Science by Enhancing Learning in the Laboratory. This paper reports on the development of the survey instrument and the evaluation of the survey using student responses to experiments from different institutions in Australia, New Zealand and the USA. A total of 3153 student responses have been analysed using factor analysis. Three factors, motivation, assessment and resources, have been identified as contributing to improved student attitudes to laboratory activities. A central focus of the survey is to provide feedback to practitioners to iteratively improve experiments. Implications for practitioners and researchers are also discussed.
Student Understanding of Time in an Introductory Astronomy Laboratory

NASA Astrophysics Data System (ADS)

Traxler, A. L.; Batuski, D. J.; Comins, N. F.; Thompson, J. R.

2005-09-01

The astronomy lab at the University of Maine consists of discrete weekly lessons in which students work in small groups. Individual pretests and post-tests accompany each lesson. The lesson studied here covers the topic of time, including sidereal time, Apparent Solar Time, and time zones. The pretest consists of four multiple-choice questions, which are also administered after instruction as a post-test. In the fall 2004 semester, the pretest was rewritten to focus on some major conceptual components of the lab, while the lesson materials were not modified from previous years. Examination of class performance (n = 96) revealed no significant improvements in score from pre- to post-lesson. In the spring 2005 semester, the lesson was altered to incorporate the Starry Night software for simulating the sky instead of the celestial sphere models previously used. The goal of the change was to give students a more interactive environment for completing the laboratory exercise, which was otherwise altered as little as possible. Data from the spring semester show some gains on the pre/post-test questions covering sidereal time and Daylight Savings Time. Results to date have informed planned modifications to the lesson. A. L. T. was supported during this research by the University of Maine through a Provost Fellowship.
Common Student Misconceptions in Exercise Physiology and Biochemistry

ERIC Educational Resources Information Center

Morton, James P.; Doran, Dominic A.; MacLaren, Don P. M.

2008-01-01

The present study represents a preliminary investigation designed to identify common misconceptions in students' understanding of physiological and biochemical topics within the academic domain of sport and exercise sciences. A specifically designed misconception inventory (consisting of 10 multiple-choice questions) was administered to a cohort…
Peer associations for substance use and exercise in a college student social network.

PubMed

Barnett, Nancy P; Ott, Miles Q; Rogers, Michelle L; Loxley, Michelle; Linkletter, Crystal; Clark, Melissa A

2014-10-01

Substance use and exercise have opposite trajectories in young adulthood, and research indicates that peers are influential for both of these health behaviors, but simultaneous investigations of peer associations with substance use and exercise have not been conducted. Use a college residence hall peer network to examine associations between peer behaviors and alcohol use, marijuana use, and exercise behavior. 129 undergraduates (51.9% female, 48.1% non-Hispanic White; 84.5% first-year students) in one residence hall completed a Web-based survey of substance use and exercise and identified up to 10 students in the residence hall who were important to them. Two social network analytic methods, community detection cluster analysis and network autocorrelation modeling, were used to identify peer groupings and to examine the associations between peer and participant behaviors, respectively. Participants nominated an average of 4.1 residence hall members, and 53.9% of the ties were reciprocal. 6 clusters were identified that differed significantly on demographics, college activities, substance use, and exercise. Weekly volume of alcohol consumed among nominated peers was significantly associated with that of participants, and all other covariates, including gender and athlete status, were not significant. Peer marijuana use also was associated with participant use after controlling for covariates. Exercise levels of nominated peers were not associated with exercise levels of participants. College student networks may be good targets for health-related prevention programs. Programs that use close-proximity peers to influence the behavior of others might be more effective with substance use as the target behavior than exercise.
The Effect of Guided-Inquiry Laboratory Experiments on Science Education Students' Chemistry Laboratory Attitudes, Anxiety and Achievement

ERIC Educational Resources Information Center

Ural, Evrim

2016-01-01

The study aims to search the effect of guided inquiry laboratory experiments on students' attitudes towards chemistry laboratory, chemistry laboratory anxiety and their academic achievement in the laboratory. The study has been carried out with 37 third-year, undergraduate science education students, as a part of their Science Education Laboratory…
Predictors of obesity bias among exercise science students.

PubMed

Langdon, Jody; Rukavina, Paul; Greenleaf, Christy

2016-06-01

The purpose of the present study was to investigate particular psychosocial predictors of obesity bias in prehealth professionals, which include the internalization of athletic and general body ideals, perceived media pressure and information, and achievement goal orientations. Exercise science undergraduate students (n= 242) filled out a survey containing questions of demographic characteristics, achievement goals, social-cultural attitudes toward appearance (using Sociocultural Attitudes Towards Appearance Questionnaire-3), and obesity bias measurements (using the antifat attitudes test and fat phobia scale). The results indicated that students were explicitly biased toward overweight and obese individuals, held had high task and ego goals, and had high internalization of an athletic body type ideal, as determined by mean scores being above the median values for each scale. Internalization of the athletic body type predicted obesity bias for fat phobia, weight control blame, and physical/romantic attractiveness. In conclusion, exercise science students may enter programs socialized from society and sport, and, potentially, these psychosocial attitudes and beliefs may have implications to working with future clients, especially for those of the general population and those whose body shape and size are different than themselves. Copyright © 2016 The American Physiological Society.
Influence of Age, Sex, and Race on College Students' Exercise Motivation of Physical Activity

ERIC Educational Resources Information Center

Egli, Trevor; Bland, Helen W.; Melton, Bridget F.; Czech, Daniel R.

2011-01-01

Objective: The authors examined differences in exercise motivation between age, sex, and race for college students. Participants: Students from 156 sections of physical activity classes at a midsize university were recruited (n = 2,199; 1,081 men, 1,118 women) in 2005-2006 and volunteered to complete the Exercise Motivation Inventory. Methods:…
A Research-Inspired Laboratory Sequence Investigating Acquired Drug Resistance

ERIC Educational Resources Information Center

Taylor, Elizabeth Vogel; Fortune, Jennifer A.; Drennan, Catherine L.

2010-01-01

Here, we present a six-session laboratory exercise designed to introduce students to standard biochemical techniques in the context of investigating a high impact research topic, acquired resistance to the cancer drug Gleevec. Students express a Gleevec-resistant mutant of the Abelson tyrosine kinase domain, the active domain of an oncogenic…
Video Laboratories for the Teaching and Learning of Professional Ethics in Exercise Physiology Curricula

ERIC Educational Resources Information Center

Senchina, David S.

2011-01-01

Student researchers in physiology courses often interact with human subjects in classroom research but may be unfamiliar with the professional ethics of experimenter-subject interactions. This communication describes experiences related to an interactive video used in exercise science and general biology courses to help students become aware of,…
Brewing Beer in the Laboratory: Grain Amylases and Yeast's Sweet Tooth

ERIC Educational Resources Information Center

Gillespie, Blake; Deutschman, William A.

2010-01-01

Brewing beer provides a straightforward and robust laboratory counterpart to classroom discussions of fermentation, a staple of the biochemistry curriculum. An exercise is described that provides several connections between lecture and laboratory content. Students first extract fermentable carbohydrates from whole grains, then ferment these with…
Assessing Student Learning in a Virtual Laboratory Environment

ERIC Educational Resources Information Center

Wolf, T.

2010-01-01

Laboratory experience is a key factor in technical and scientific education. Virtual laboratories have been proposed to reduce cost and simplify maintenance of lab facilities while still providing students with access to real systems. It is important to determine if such virtual labs are still effective for student learning. In the assessment of a…
Environmental Chemistry in the Undergraduate Laboratory.

ERIC Educational Resources Information Center

Wenzel, Thomas J.; Austin, Rachel N.

2001-01-01

Discusses the importance of environmental chemistry and the use of laboratory exercises in analytical and general chemistry courses. Notes the importance of lab work in heightening student interest in coursework including problem-based learning in undergraduate curricula, ready adaptability of environmental coursework to existing curricula, and…
Laboratory Instruction in the Service of Science Teaching and Learning: Reinventing and Reinvigorating the Laboratory Experience

ERIC Educational Resources Information Center

McComas, William

2005-01-01

The Benchmarks for Science Literacy and the National Science Education Standards strongly suggest that students should be engaged in hands-on learning. However, from many corners, the original "mental training" rationale for school labs has been criticized, the "cookbook" nature of laboratory exercises condemned, and the prevalence of using…
Predictors of Obesity Bias among Exercise Science Students

ERIC Educational Resources Information Center

Langdon, Jody; Rukavina, Paul; Greenleaf, Christy

2016-01-01

The purpose of the present study was to investigate particular psychosocial predictors of obesity bias in prehealth professionals, which include the internalization of athletic and general body ideals, perceived media pressure and information, and achievement goal orientations. Exercise science undergraduate students (n = 242) filled out a survey…
Blended Learning within an Undergraduate Exercise Physiology Laboratory

ERIC Educational Resources Information Center

Elmer, Steven J.; Carter, Kathryn R.; Armga, Austin J.; Carter, Jason R.

2016-01-01

In physiological education, blended course formats (integration of face-to-face and online instruction) can facilitate increased student learning, performance, and satisfaction in classroom settings. There is limited evidence on the effectiveness of using blending course formats in laboratory settings. We evaluated the impact of blended learning…
A laboratory silicone for preclinical training in ear prosthesis.

PubMed

Anand, Vijay; Haribabu; Vimala; Gnanasamband, Vimala

2013-07-01

This article describes an industrial elastic silicone as a material for the laboratory fabrication of ear prosthesis. It has been tested for toxicity in lab animals by the SGS India Pvt. Ltd and approved as a material to pass the parameter of abnormal toxicity. This material therefore can be safely recommended for laboratory exercise to fabricate facial prosthesis. The high cost of the maxillo facial silicone materials prohibits their use for facial prosthesis in pre-clinical training of post-graduate students in maxillofacial prosthodontics. For this reason, pre-clinical laboratory exercise in facial prosthesis is inadequate. A few institutions use polymethyl methacrylate resins which are rigid and do not have elastic characteristics of silicone, which is used for facial defects. This cost-effective industrial silicone material which mimics the elastic and color characteristics of the conventional silicones can be recommended for preclinical exercises.
Enhanced Training for Cyber Situational Awareness in Red versus Blue Team Exercises

DOE Office of Scientific and Technical Information (OSTI.GOV)

Carbajal, Armida J.; Stevens-Adams, Susan Marie; Silva, Austin Ray

This report summarizes research conducted through the Sandia National Laboratories Enhanced Training for Cyber Situational Awareness in Red Versus Blue Team Exercises Laboratory Directed Research and Development project. The objective of this project was to advance scientific understanding concerning how to best structure training for cyber defenders. Two modes of training were considered. The baseline training condition (Tool-Based training) was based on current practices where classroom instruction focuses on the functions of a software tool with various exercises in which students apply those functions. In the second training condition (Narrative-Based training), classroom instruction addressed software functions, but in the contextmore » of adversary tactics and techniques. It was hypothesized that students receiving narrative-based training would gain a deeper conceptual understanding of the software tools and this would be reflected in better performance within a red versus blue team exercise.« less
Comparison of student achievement among two science laboratory types: traditional and virtual

NASA Astrophysics Data System (ADS)

Reese, Mary Celeste

Technology has changed almost every aspect of our daily lives. It is not surprising then that technology has made its way into the classroom. More and more educators are utilizing technological resources in creative ways with the intent to enhance learning, including using virtual laboratories in the sciences in place of the "traditional" science laboratories. This has generated much discussion as to the influence on student achievement when online learning replaces the face-to-face contact between instructor and student. The purpose of this study was to discern differences in achievement of two laboratory instruction types: virtual laboratory and a traditional laboratory. Results of this study indicate statistical significant differences in student achievement defined by averages on quiz scores in virtual labs compared with traditional face-to-face laboratories and traditional laboratories result in greater student learning gains than virtual labs. Lecture exam averages were also greater for students enrolled in the traditional laboratories compared to students enrolled in the virtual laboratories. To account for possible differences in ability among students, a potential extraneous variable, GPA and ACT scores were used as covariates.
A Simple Laboratory Exercise for Ethanol Production by Immobilized Bakery Yeasts ("Saccharomyces Cerevisiae")

ERIC Educational Resources Information Center

Vullo, Diana L.; Wachsman, Monica B.

2005-01-01

This laboratory experiment was designed for Chemistry, Food Technology, Biology, and Chemical Engineering undergraduate students. This laboratory experience shows the advantages of immobilized bakery yeasts in ethanol production by alcoholic fermentation. The students were able to compare the ethanol production yields by free or calcium alginate…

Vertebrate Osmoregulation: A Student Laboratory Exercise Using Teleost Fish

ERIC Educational Resources Information Center

Boily P.; Rees, B. B.; Williamson, L. A. C.

2007-01-01

Here, we describe a laboratory experiment as part of an upper-level vertebrate physiology course for biology majors to investigate the physiological response of vertebrates to osmoregulatory challenges. The experiment involves measuring plasma osmolality and Na[superscript +] -K[superscript +] -ATPase activity in gill tissue of teleost fish…
The Influence of Physical Activity, Sport and Exercise Motives among UK-Based University Students

ERIC Educational Resources Information Center

Roberts, Simon; Reeves, Matthew; Ryrie, Angus

2015-01-01

Recent evidence suggests that the majority of the adult population fails to achieve the recommended target of 30-minutes moderate intensity exercise, days a week. This includes university students who often have the time to engage in physical activity. The aim of this study was to determine exercise motives for a UK-based student population. The…
The Power of Exercise and the Exercise of Power: The Harvard Fatigue Laboratory, Distance Running, and the Disappearance of Work, 1919-1947.

PubMed

Scheffler, Robin Wolfe

2015-08-01

In the early twentieth century, fatigue research marked an area of conflicting scientific, industrial, and cultural understandings of working bodies. These different understandings of the working body marked a key site of political conflict during the growth of industrial capitalism. Many fatigue researchers understood fatigue to be a physiological fact and allied themselves with Progressive-era reformers in urging industrial regulation. Opposed to these researchers were advocates of Taylorism and scientific management, who held that fatigue was a mental event and that productivity could be perpetually increased through managerial efficiency. Histories of this conflict typically cease with the end of the First World War, when it is assumed that industrial fatigue research withered away. This article extends the history of fatigue research through examining the activities of the Harvard Fatigue Laboratory in the 1920s and 1930s. The Laboratory developed sophisticated biochemical techniques to study the blood of exercising individuals. In particular, it found that exercising individuals could attain a biochemically "steady state," or equilibrium, and extrapolated from this to assert that fatigue was psychological, not physiological, in nature. In contrast to Progressive-era research, the Laboratory reached this conclusion through laboratory examination, not of industrial workers, but of Laboratory staff members and champion marathon runners. The translation of laboratory research to industrial settings, and the eventual erasure of physiological fatigue from discussions of labor, was a complex function of institutional settings, scientific innovation, and the cultural meanings of work and sport.
Incorporating a Watershed-Based Summary Field Exercise into an Introductory Hydrogeology Course

ERIC Educational Resources Information Center

Fryar, Alan E.; Thompson, Karen E.; Hendricks, Susan P.; White, David S.

2010-01-01

We have developed and implemented a summary field exercise for an introductory hydrogeology course without a laboratory section. This exercise builds on lectures and problem sets that use pre-existing field data. During one day in April, students measure hydraulic heads, stream and spring flow, and stream-bed seepage within the rural watershed of…
The Relationship between Attitude toward Physical Education and Leisure-Time Exercise in High School Students.

ERIC Educational Resources Information Center

Chung, Min-hau; Phillips, D. Allen

2002-01-01

Investigated the relationship between U.S. and Taiwanese high school students' attitudes toward physical education and leisure time exercise, noting the influence of nationality and gender. Student surveys indicated significant relationships between attitudes toward physical education and leisure time exercise, regardless of nationality or gender.…
Results of an inter and intra laboratory exercise on the assessment of complex autosomal DNA profiles.

PubMed

Benschop, Corina C G; Connolly, Edward; Ansell, Ricky; Kokshoorn, Bas

2017-01-01

The interpretation of complex DNA profiles may differ between laboratories and reporting officers, which can lead to discrepancies in the final reports. In this study, we assessed the intra and inter laboratory variation in DNA mixture interpretation for three European ISO17025-accredited laboratories. To this aim, 26 reporting officers analyzed five sets of DNA profiles. Three main aspects were considered: 1) whether the mixed DNA profiles met the criteria for comparison to a reference profile, 2) the actual result of the comparison between references and DNA profiling data and 3) whether the weight of the DNA evidence could be assessed. Similarity in answers depended mostly on the complexity of the tasks. This study showed less variation within laboratories than between laboratories which could be the result of differences between internal laboratory guidelines and methods and tools available. Results show the profile types for which the three laboratories report differently, which informs indirectly on the complexity threshold the laboratories employ. Largest differences between laboratories were caused by the methods available to assess the weight of the DNA evidence. This exercise aids in training forensic scientists, refining laboratory guidelines and explaining differences between laboratories in court. Undertaking more collaborative exercises in future may stimulate dialog and consensus regarding interpretation. For training purposes, DNA profiles of the mixed stains and questioned references are made available. Copyright © 2016 The Chartered Society of Forensic Sciences. Published by Elsevier Ireland Ltd. All rights reserved.
Land Use Planning Exercise Using Geographic Information Systems and Digital Soil Surveys

ERIC Educational Resources Information Center

Stout, Heidi M.; Lee, Brad D.

2004-01-01

Geographic information system (GIS) technology has become a valuable tool for environmental science professionals. By incorporating GIS into college-level course curricula, agricultural students become better qualified for employment opportunities. We have developed a case study-based laboratory exercise that introduces students to GIS and the…
Anaerobic threshold employed on exercise training prescription and performance assessment for laboratory rodents: A short review.

PubMed

Abreu, Phablo; Mendes, Sávio Victor Diogenes; Leal-Cardoso, José Henrique; Ceccatto, Vânia Marilande

2016-04-15

Several studies have generated numerous terms in the field of exercise training prescription and performance assessment that often do not match the information previously demonstrated by many other works, generating much debate and resulting in an immense pool of scientific results. Several protocols in exercise training prescription and performance assessment have been proposed for these purposes by many reasons. In the field of exercise science, the protocol must be thoroughly investigated and provide real tools to be reproducible. Many laboratories have been adapting and developing evaluation protocols and testing on physical training of rodents in different experimental conditions. In this context, mice, rats and rabbits are preferentially chosen due to easy manipulation and good response to exercise, and comparable at results obtained with humans in compatible effort intensities. But, the exercise training programs and aerobic-anaerobic transition assessment proposed for animal models vary extensively, depending on the species, gender, age, type of stimulus, type of exercise, type of method and also on the specific objectives of the program. This short review demonstrates the need in offering tools performed by invasive measurement to assess the anaerobic threshold by blood lactate employed on evolution of aerobic-anaerobic parameters of rodents. The objective of this short review was to present and to discuss physical evaluation protocols applications to rodents. The table submitted may give a basis for anaerobic threshold employed on exercise training prescription and performance assessment for laboratory rodents in future research. Copyright © 2016 Elsevier Inc. All rights reserved.
Characterizing High School Students' Written Explanations in Biology Laboratories

NASA Astrophysics Data System (ADS)

Peker, Deniz; Wallace, Carolyn S.

2011-03-01

The purpose of this qualitative interpretive research study was to examine high school students' written scientific explanations during biology laboratory investigations. Specifically, we characterized the types of epistemologies and forms of reasoning involved in students' scientific explanations and students' perceptions of scientific explanations. Sixteen students from a rural high school in the Southeastern United States were the participants of this research study. The data consisted of students' laboratory reports and individual interviews. The results indicated that students' explanations were primarily based on first-hand knowledge gained in the science laboratories and mostly representing procedural recounts. Most students did not give explanations based on a theory or a principle and did not use deductive reasoning in their explanations. The students had difficulties explaining phenomena that involved intricate cause-effect relationships. Students perceived scientific explanation as the final step of a scientific inquiry and as an account of what happened in the inquiry process, and held a constructivist-empiricist view of scientific explanations. Our results imply the need for more explicit guidance to help students construct better scientific explanations and explicit teaching of the explanatory genre with particular focus on theoretical and causal explanations.
Engineering Water Analysis Laboratory Activity.

ERIC Educational Resources Information Center

Schlenker, Richard M.

The purposes of water treatment in a marine steam power plant are to prevent damage to boilers, steam-operated equipment, and steam and condensate lives, and to keep all equipment operating at the highest level of efficiency. This laboratory exercise is designed to provide students with experiences in making accurate boiler water tests and to…
An Inquiry-Based Density Laboratory for Teaching Experimental Error

ERIC Educational Resources Information Center

Prilliman, Stephen G.

2012-01-01

An inquiry-based laboratory exercise is described in which introductory chemistry students measure the density of water five times using either a beaker, a graduated cylinder, or a volumetric pipet. Students are also assigned to use one of two analytical balances, one of which is purposefully miscalibrated by 5%. Each group collects data using…
Bioethics in the Laboratory: Synthesis and Interactivity.

ERIC Educational Resources Information Center

Murray, Kevin J.

1999-01-01

Describes the implementation of a bioethics laboratory exercise that incorporates a variety of instructional strategies. In the activity, General Biology students consider relevant and interesting topics of bioethical importance and prepare classroom presentations on the different viewpoints normally attendant to ethical topics. Includes an…
Getting Real: A General Chemistry Laboratory Program Focusing on "Real World" Substances

NASA Astrophysics Data System (ADS)

Kerber, Robert C.; Akhtar, Mohammad J.

1996-11-01

In order to confront the abstractness of the freshman chemistry syllabus and the consequent failure of students to relate what they learn to their everyday lives, we have designed a new freshman laboratory program. It is intended as an interface between the substances that surround the students in their ordinary lives and the abstract principles presented in chemistry classrooms (1). A laboratory should provide the organized experiences and observations that underlie the intellectual constructs of chemistry, and tying these experiences and observations to the real world can help to provide motivation for study of the principles. The freshman laboratory program constitutes the foundation for subsequent laboratory courses. However, the good habits we strive to develop there (careful observation, thorough record keeping, proper use of equipment, objective data analysis) are essential to all scientific work, and are intended to provide lasting educational value for all students, especially those who do not take later laboratory work. What We Do A list of the laboratory exercises carried out during 1994-1995 is presented in Table 1. The course incorporates the following features. 1. The exercises deal with recognizable, everyday substances, not just with "chemicals". That "baking soda" and "sodium bicarbonate" are the same is a chemical truism of which the students may be aware, but the visible presence of the Arm and Hammer box nevertheless helps them to make connections to the world outside the laboratory. Perceiving the connections, students may be inspired by curiosity to understand chemical phenomena better, not just to tolerate what they are being taught, as an irrelevant hurdle in the pursuit of a career. 2. Since many significant substances around students in the everyday world are organic, we work in the lab with organic as well as the usual inorganic materials. These include analgesics, vitamins, antifreeze, foodstuffs, dyestuffs, plastics, and fibers. In
Chemistry Students' Challenges in Using MBL's in Science Laboratories.

ERIC Educational Resources Information Center

Atar, Hakan Yavuz

Understanding students' challenges about using microcomputer based laboratories (MBLs) would provide important data in understanding the appropriateness of using MBLs in high school chemistry laboratories. Identifying students' concerns about this technology will in part help educators identify the obstacles to science learning when using this…
Effect of Certified Personal Trainer Services on Stage of Exercise Behavior and Exercise Mediators in Female College Students

ERIC Educational Resources Information Center

Fischer, Donald V.; Bryant, Jennifer

2008-01-01

Objective: The authors examined the effect of certified personal trainer services on exercise behavior by using the transtheoretical model of behavioral change. Participants: Female college students (n = 449) completed surveys during the first week (T1) and last week (T2) of the fall semester. Methods: Students receiving personal trainer services…
Self-Regulation of Physical Education Teacher Education Students' Attitudes towards Exercise and Diet

ERIC Educational Resources Information Center

Wilkinson, Carol; Prusak, Keven

2013-01-01

The purpose of this study was to assess differences in self-regulation of attitudes towards engaging in exercise and eating a healthy diet between physical education teacher education (PETE) students and general education (GE) students, and between male students and female students. Participants were university students (n = 194) at a university…
Dietary Supplement Laboratory Quality Assurance Program: The First Five Exercises

PubMed Central

Phillips, Melissa M.; Rimmer, Catherine A.; Wood, Laura J.; Lippa, Katrice A.; Sharpless, Katherine E.; Duewer, David L.; Sander, Lane C.; Betz, Joseph M.

2011-01-01

The National Institute of Standards and Technology (NIST) has established a Dietary Supplement Laboratory Quality Assurance Program (DSQAP) in collaboration with the National Institutes of Health Office of Dietary Supplements. Program participants measure concentrations of active and/or marker compounds as well as nutritional and toxic elements in food and dietary supplements distributed by NIST. Data are compiled at NIST, where they are analyzed for accuracy relative to reference values and concordance among the participants. Performance reports and certificates of completion are provided to participants, which can be used to demonstrate compliance with current Good Manufacturing Practices as promulgated by the U.S. Food and Drug Administration. The DSQAP has conducted five exercises to date, with total participation including more than 75 different laboratories and many more individual analysts. PMID:21797008
Real-time laboratory exercises to test contingency plans for classical swine fever: experiences from two national laboratories.

PubMed

Koenen, F; Uttenthal, A; Meindl-Böhmer, A

2007-12-01

In order to adequately and efficiently handle outbreaks of contagious diseases such as classical swine fever (CSF), foot and mouth disease or highly pathogenic avian influenza, competent authorities and the laboratories involved have to be well prepared and must be in possession of functioning contingency plans. These plans should ensure that in the event of an outbreak access to facilities, equipment, resources, trained personnel, and all other facilities needed for the rapid and efficient eradication of the outbreak is guaranteed, and that the procedures to follow are well rehearsed. It is essential that these plans are established during 'peace-time' and are reviewed regularly. This paper provides suggestions on how to perform laboratory exercises to test preparedness and describes the experiences of two national reference laboratories for CSF. The major lesson learnt was the importance of a well-documented laboratory contingency plan. The major pitfalls encountered were shortage of space, difficulties in guaranteeing biosecurity and sufficient supplies of sterile equipment and consumables. The need for a standardised laboratory information management system, that is used by all those involved in order to reduce the administrative load, is also discussed.
Exploring Solid-State Structure and Physical Properties: A Molecular and Crystal Model Exercise

ERIC Educational Resources Information Center

Bindel, Thomas H.

2008-01-01

A crystal model laboratory exercise is presented that allows students to examine relations among the microscopic-macroscopic-symbolic levels, using crystalline mineral samples and corresponding crystal models. Students explore the relationship between solid-state structure and crystal form. Other structure-property relationships are explored. The…
Greenbeards in Yeast: An Undergraduate Laboratory Exercise to Teach the Genetics of Cooperation

ERIC Educational Resources Information Center

Ågren, J. Arvid; Williamson, Robert J.; Campitelli, Brandon E.; Wheeler, Jill

2017-01-01

Recent years have seen a dramatic increase in our understanding of the social behaviour of microbes. Here, we take advantage of these developments to present an undergraduate laboratory exercise that uses the cooperative flocculating behaviour of yeast ("Saccharomyces sp.") to introduce the concept of inclusive fitness and teach the…

What Medical Students Say about Psychiatry: Results of a Reflection Exercise

ERIC Educational Resources Information Center

Brenner, Adam M.

2011-01-01

Objective: The author describes the results of a reflection exercise for psychiatry clerkship students. Method: The author performed a qualitative analysis on 100 "reflection" papers written by medical students in their psychiatry clerkship and identified the most prominent thematic content. Results: The most common thematic content involved…
Manual and computer-aided materials selection for industrial production: An exercise in decision making

NASA Technical Reports Server (NTRS)

Bates, Seth P.

1990-01-01

Students are introduced to methods and concepts for systematic selection and evaluation of materials which are to be used to manufacture specific products in industry. For this laboratory exercise, students are asked to work in groups to identify and describe a product, then to proceed through the process to select a list of three candidates to make the item from. The exercise draws on knowledge of mechanical, physical, and chemical properties, common materials test techniques, and resource management skills in finding and assessing property data. A very important part of the exercise is the students' introduction to decision making algorithms, and learning how to apply them to a complex decision making process.
Inquiry-based Investigation in Biology Laboratories: Does Neem Provide Bioprotection against Bean Beetles?

ERIC Educational Resources Information Center

Pearce, Amy R.; Sale, Amanda Lovelace; Srivatsan, Malathi; Beck, Christopher W.; Blumer, Lawrence S.; Grippo, Anne A.

2013-01-01

We developed an inquiry-based biology laboratory exercise in which undergraduate students designed experiments addressing whether material from the neem tree ("Azadirachta indica") altered bean beetle ("Callosobruchus maculatus") movements and oviposition. Students were introduced to the bean beetle life cycle, experimental…
Learning Style Preferences of Undergraduate Dietetics, Athletic Training, and Exercise Science Students

ERIC Educational Resources Information Center

Wagner, Meredith G.; Hansen, Pamela; Rhee, Yeong; Brundt, Ardith; Terbizan, Donna; Christensen, Bryan

2014-01-01

The study assessed the preferred learning style (LS) of college students and compared LS preferences among students majoring in Dietetics, Exercise Science, and Athletic Training. LS questionnaires were distributed to students (N = 693, mean age 20.5 ± 1.7) enrolled in health science courses at three Midwestern universities. Most students…
A Laboratory Exercise for a College-Level, Introductory Neuroscience Course Demonstrating Effects of Housing Environment on Anxiety and Psychostimulant Sensitivity

PubMed Central

Pritchard, Laurel M.; Van Kempen, Tracey A.; Williams, Heather; Zimmerberg, Betty

2008-01-01

In this paper we describe a lab exercise developed for the Introduction to Neuroscience course at Williams College. One of a series of five labs, this exercise demonstrated several key principles of behavioral neuroscience. In this lab, students explored the effects of post-weaning housing environment on anxiety-like behavior and psychostimulant sensitivity in rodents. The exercise was intended to emphasize the importance and utility of animal models in neuroscience research and to give students hands-on experience with behavioral neuroscience research techniques. Students tested rats reared in social isolation or environmental enrichment for anxiety-like behaviors on the elevated plus maze, and for spontaneous and amphetamine-induced locomotor activity in the open field. They were then asked to analyze pooled class data and prepare a short lab report. Overall, student performance was excellent. This exercise emerged as a class favorite on course evaluations. Interestingly, the first time this exercise was conducted, the effects of environmental enrichment on anxiety-like behaviors and psychostimulant sensitivity were not consistent with those published in previous studies. Key methodological issues that may account for this discrepancy and contribute to successful implementation by other programs are discussed. PMID:23493884
Developing Guided Inquiry-Based Student Lab Worksheet for Laboratory Knowledge Course

NASA Astrophysics Data System (ADS)

Rahmi, Y. L.; Novriyanti, E.; Ardi, A.; Rifandi, R.

2018-04-01

The course of laboratory knowledge is an introductory course for biology students to follow various lectures practicing in the biology laboratory. Learning activities of laboratory knowledge course at this time in the Biology Department, Universitas Negeri Padang has not been completed by supporting learning media such as student lab worksheet. Guided inquiry learning model is one of the learning models that can be integrated into laboratory activity. The study aimed to produce student lab worksheet based on guided inquiry for laboratory knowledge course and to determine the validity of lab worksheet. The research was conducted using research and developmet (R&D) model. The instruments used in data collection in this research were questionnaire for student needed analysis and questionnaire to measure the student lab worksheet validity. The data obtained was quantitative from several validators. The validators consist of three lecturers. The percentage of a student lab worksheet validity was 94.18 which can be categorized was very good.
A Physics Laboratory Course Designed Using Problem-Based Learning for Prospective Physics Teachers

ERIC Educational Resources Information Center

Ünal, Cezmi; Özdemir, Ömer Faruk

2013-01-01

In general, laboratories are exercises with a primary focus on the verification of established laws and principles, or on the discovery of objectively knowable facts. In laboratories, students gather data without comprehending the meaning of their actions. The cognitive demand of laboratory tasks is reduced to a minimal level. To prevent these…
The influence of unstable modified wall squat exercises on the posture of female university students

PubMed Central

Lee, Yoonmi

2015-01-01

[Purpose] The purpose of this study was to examine the effect of unstable modified wall squat exercises on the posture of female university students. [Subjects] The subjects of this study were 30 female university students who were equally and randomly allocated to an unstable modified wall squat exercises group the experimental group and a stable modified wall squat exercises group the control group. [Methods] Both groups performed their respective exercises for 30 minutes three times per week over a six-week period. Using BackMapper, trunk inclination, trunk imbalance, pelvic position, pelvic torsion, pelvic rotation, and position of the scapulae were evaluated. [Results] The unstable modified wall squat exercises group obtained significant results for trunk inclination, trunk imbalance, pelvic position, pelvic torsion, position of the scapulae, while the stable modified wall squat exercises group obtained significant results for trunk imbalance and pelvic position. [Conclusion] Unstable modified wall squat exercises may be applied as a method to correct the posture of average adults. PMID:26356770
Using social cognitive theory to explain discretionary, "leisure-time" physical exercise among high school students.

PubMed

Winters, Eric R; Petosa, Rick L; Charlton, Thomas E

2003-06-01

To examine whether knowledge of high school students' actions of self-regulation, and perceptions of self-efficacy to overcome exercise barriers, social situation, and outcome expectation will predict non-school related moderate and vigorous physical exercise. High school students enrolled in introductory Physical Education courses completed questionnaires that targeted selected Social Cognitive Theory variables. They also self-reported their typical "leisure-time" exercise participation using a standardized questionnaire. Bivariate correlation statistic and hierarchical regression were conducted on reports of moderate and vigorous exercise frequency. Each predictor variable was significantly associated with measures of moderate and vigorous exercise frequency. All predictor variables were significant in the final regression model used to explain vigorous exercise. After controlling for the effects of gender, the psychosocial variables explained 29% of variance in vigorous exercise frequency. Three of four predictor variables were significant in the final regression equation used to explain moderate exercise. The final regression equation accounted for 11% of variance in moderate exercise frequency. Professionals who attempt to increase the prevalence of physical exercise through educational methods should focus on the psychosocial variables utilized in this study.
Just-in-Time Teaching Exercises to Engage Students in an Introductory-Level Dinosaur Course

NASA Astrophysics Data System (ADS)

Guertin, Laura A.; Zappe, Sarah E.; Kim, Heeyoung

2007-12-01

The Just-in-Time Teaching (JiTT) technique allows students to be engaged in course material outside of the classroom by answering web-based questions. The responses are summarized and presented to students in class with a follow-up active learning exercise. College students enrolled in an introductory-level general education geoscience course were surveyed over a two-semester period on their engagement level during lecture and perceived learning of course content. Data show that students are able to reflect on their prior knowledge and construct new knowledge with weekly graded JiTT exercises. Despite increasing and competing pressures outside of the classroom, students reported increased learning and engagement in a course with required weekly assignments.
The Active Classroom: Supporting Students with Attention Deficit Hyperactivity Disorder through Exercise

ERIC Educational Resources Information Center

Mulrine, Christopher F.; Prater, Mary Anne; Jenkins, Amelia

2008-01-01

Teachers face many challenges in their daily effort to meet the needs of and ensure success for a diverse group of students, including students who are inattentive and have trouble staying focused and on task. All students, especially those with attention deficit hyperactivity disorder (ADHD), need exercise; it assists them with concentration and…
Dental Students' Perceptions of Digital Assessment Software for Preclinical Tooth Preparation Exercises.

PubMed

Park, Carly F; Sheinbaum, Justin M; Tamada, Yasushi; Chandiramani, Raina; Lian, Lisa; Lee, Cliff; Da Silva, John; Ishikawa-Nagai, Shigemi

2017-05-01

Objective self-assessment is essential to learning and continued competence in dentistry. A computer-assisted design/computer-assisted manufacturing (CAD/CAM) learning software (prepCheck, Sirona) allows students to objectively assess their performance in preclinical prosthodontics. The aim of this study was to evaluate students' perceptions of CAD/CAM learning software for preclinical prosthodontics exercises. In 2014, all third-year dental students at Harvard School of Dental Medicine (n=36) were individually instructed by a trained faculty member in using prepCheck. Each student completed a preclinical formative exercise (#18) and summative examination (#30) for ceramometal crown preparation and evaluated the preparation using five assessment tools (reduction, margin width, surface finish, taper, and undercut) in prepCheck. The students then rated each of the five tools for usefulness, user-friendliness, and frequency of use on a scale from 1=lowest to 5=highest. Faculty members graded the tooth preparations as pass (P), marginal-pass (MP), or fail (F). The survey response rate was 100%. The tools for undercut and taper had the highest scores for usefulness, user-friendliness, and frequency of use. The reduction tool score was significantly lower in all categories (p<0.01). There were significant differences in usefulness (p<0.05) and user-friendliness (p<0.05) scores among the P, MP, and F groups. These results suggest that the prepCheck taper and undercut tools were useful for the students' learning process in a preclinical exercise. The students' perceptions of prepCheck and their preclinical performance were related, and those students who performed poorest rated the software as significantly more useful.
Effects of neck exercise on high-school students' neck-shoulder posture.

PubMed

Lee, Myoung-Hyo; Park, Su-Jin; Kim, Jin-Sang

2013-05-01

[Purpose] This study examined the effects of deep flexor muscle-strengthening exercise on the neck-shoulder posture, and the strength and endurance of the deep flexor muscles of high-school students. [Subjects] The subjects were 30 seventeen-year-old female high-school students who complained about bad posture and chronic neck-shoulder pain. They were randomly divided into an experimental group of 15 subjects, who performed a deep flexor muscle-strengthening exercise and a control group of 15 subjects, who performed a basic stretching exercise. [Methods] The experimental group of 15 subjects performed a deep flexor muscle-strengthening exercise consisting of low-load training of the cranio-cervical flexor muscle, and the control group of 15 subjects performed a basic stretching exercise consisting of seven motions. [Results] The experimental group showed statistically significant changes in head tilt angle, neck flexion angle, forward shoulder angle, and the result of the cranio-cervical flexion test after the training. In contrast, the control group showed no statistically significant changes in these measures following the training. When the results of the groups were compared, statistically significant differences were found for all items between the experimental group and the control group. [Conclusion] Strengthening cranio-cervical flexor muscles is important for the adjustment of neck posture, and maintaining their stability is required to improve neck-shoulder posture.
Affordable Hands-On DNA Sequencing and Genotyping: An Exercise for Teaching DNA Analysis to Undergraduates

ERIC Educational Resources Information Center

Shah, Kushani; Thomas, Shelby; Stein, Arnold

2013-01-01

In this report, we describe a 5-week laboratory exercise for undergraduate biology and biochemistry students in which students learn to sequence DNA and to genotype their DNA for selected single nucleotide polymorphisms (SNPs). Students use miniaturized DNA sequencing gels that require approximately 8 min to run. The students perform G, A, T, C…
How to Motivate Students to Work in the Laboratory: A New Approach for an Electrical Machines Laboratory

ERIC Educational Resources Information Center

Saavedra Montes, A. J.; Botero Castro, H. A.; Hernandez Riveros, J. A.

2010-01-01

Many laboratory courses have become iterative processes in which students only seek to meet the requirements and pass the course. Some students believe these courses are boring and do not give them training as engineers. To provide a solution to the poor motivation of students in laboratories with few resources, this work proposes the method…
Measuring Stellar Temperatures: An Astrophysical Laboratory for Undergraduate Students

ERIC Educational Resources Information Center

Cenadelli, D.; Zeni, M.

2008-01-01

While astrophysics is a fascinating subject, it hardly lends itself to laboratory experiences accessible to undergraduate students. In this paper, we describe a feasible astrophysical laboratory experience in which the students are guided to take several stellar spectra, using a telescope, a spectrograph and a CCD camera, and perform a full data…
Simple Laboratory Exercise for Induction of Beta-Mannanase from "Aspergillus niger"

ERIC Educational Resources Information Center

Mulimani, V. H.; Naganagouda, K.

2010-01-01

This laboratory experiment was designed for Biochemistry, Biotechnology, Microbiology, and Food Technology students of undergraduate and postgraduate courses. The experiment shows the advantages of using agricultural waste, copra mannan as potent inducer of [beta]-mannanase. The students were able to compare the enzyme induction by commercial…
Varying Iron Release from Transferrin and Lactoferrin Proteins. A Laboratory Experiment

ERIC Educational Resources Information Center

Carmona, Fernando; González, Ana; Sánchez, Manu; Gálvez, Natividad; Cuesta, Rafael; Capdevila, Mercè; Dominguez-Vera, Jose M.

2017-01-01

Iron metabolism is an important subject of study for undergraduate students of chemistry and biochemistry. Relevant laboratory exercises are scarce in the literature but would be very helpful in assisting students grasp key concepts. The experiment described here deals with different iron release mechanisms of two protagonists in iron metabolism:…
The Expectations of Teachers and Students Who Visit a Non-Formal Student Chemistry Laboratory

ERIC Educational Resources Information Center

Garner, Nicole; Eilks, Ingo

2015-01-01

Non-formal student laboratory environments for primary and secondary school science education have become a major trend in the German educational arena in recent years. These non-formal student laboratory environments are thought to offer unique experimental learning experiences that often cannot be realized in daily school routines. The biggest…
Is a Basketball Free-Throw Sequence Nonrandom? A Group Exercise for Undergraduate Statistics Students

ERIC Educational Resources Information Center

Adolph, Stephen C.

2007-01-01

I describe a group exercise that I give to my undergraduate biostatistics class. The exercise involves analyzing a series of 200 consecutive basketball free-throw attempts to determine whether there is any evidence for sequential dependence in the probability of making a free-throw. The students are given the exercise before they have learned the…

Perceived Effectiveness among College Students of Selected Statistical Measures in Motivating Exercise Behavior

ERIC Educational Resources Information Center

Merrill, Ray M.; Chatterley, Amanda; Shields, Eric C.

2005-01-01

This study explored the effectiveness of selected statistical measures at motivating or maintaining regular exercise among college students. The study also considered whether ease in understanding these statistical measures was associated with perceived effectiveness at motivating or maintaining regular exercise. Analyses were based on a…
A Telephone Communication Skills Exercise for Veterinary Students: Experiences, Challenges, and Opportunities.

PubMed

Grevemeyer, Bernard; Betance, Larry; Artemiou, Elpida

2016-01-01

Evidence from human medicine shows a rise in telephone communication in support of after-hours services and in providing medical advice, follow-up information, etc. While specific training programs are continuously being developed for human medical education, limited publications are available on training veterinary students in telephone communication. Presented is our method of introducing a telephone communication skills exercise to third-year veterinary students. The exercise progressed over three phases and currently follows the principles of the Calgary-Cambridge Guide. Challenges and improvements on implementing a telephone communication exercise are discussed. Within veterinary communication curricula, attention should be given to the specific communication skills required for successful telephone consultations. In the absence of visual nonverbal cues and prompts during a telephone interaction, communication skills must be applied with greater intent and attention to achieve an effective consultation outcome.
Dyes, Fibers, and Paper: A Botany Lab Exercise for Non-Biology Majors

ERIC Educational Resources Information Center

Egan, Todd P.; Meekins, J. Forrest; Maluso, Diane

2004-01-01

This laboratory exercise affords students a hands-on experience learning about traditional dyes, fiber strength, and paper making. It is economical, simple to prepare, provides satisfactory results, and is student friendly. Dyes were extracted from plant leaves, stems, roots, and fruits. Hard-boiled eggs were place in the dyes for 15 minutes to…
Influence of age, sex, and race on college students' exercise motivation of physical activity.

PubMed

Egli, Trevor; Bland, Helen W; Melton, Bridget F; Czech, Daniel R

2011-01-01

The authors examined differences in exercise motivation between age, sex, and race for college students. Students from 156 sections of physical activity classes at a midsize university were recruited (n = 2,199; 1,081 men, 1,118 women) in 2005-2006 and volunteered to complete the Exercise Motivation Inventory. Quantitative, cross-sectional descriptive research design was employed. Significant differences were found in 3 of 14 exercise motivational subscales by age (affiliation, health pressures, and ill health avoidance) (p < .05). Males were motivated by intrinsic factors (strength, competition, and challenge) (p < .05) and females by extrinsic factors (ie, weight management and appearance) (p < .05); only 2 subscales proved not to be significant by sex. Race differences provided 8 significant differences by exercise motivations (p < .05). Significant differences for exercise motivations in college-aged population by demographics were documented. Understanding these differences is important for college health professionals for programming strategies and promoting physical activity.
Improvement of Student Understanding of How Kinetic Data Facilitates the Determination of Amino Acid Catalytic Function through an Alkaline Phosphatase Structure/Mechanism Bioinformatics Exercise

ERIC Educational Resources Information Center

Grunwald, Sandra K.; Krueger, Katherine J.

2008-01-01

Laboratory exercises, which utilize alkaline phosphatase as a model enzyme, have been developed and used extensively in undergraduate biochemistry courses to illustrate enzyme steady-state kinetics. A bioinformatics laboratory exercise for the biochemistry laboratory, which complements the traditional alkaline phosphatase kinetics exercise, was…
A Novel Target Synthesis Laboratory for Students

NASA Astrophysics Data System (ADS)

Smales, C. Mark; Harding, David R. K.

1999-11-01

A third-year specialist course in drug design and delivery focused on a single laboratory goal for all students. A tetrapeptide, destined as the signal component of a drug delivery system, was chosen for this target synthesis. The practical, real-life aspect of the course, and the target synthesis in particular, was a major component of the appeal to the students. Students were given a synthetic scheme based on standard peptide synthesis protocols, and several lectures provided background for the general approach. They were then encouraged to design each step of the synthesis themselves, with reference to the literature and course work. As long as due diligence was shown in attempts to achieve success at each step, no student was penalized for losses, low yields, or other lack of progress. Reports on all procedures used were prepared in a journal format chosen by the student and were collected at the end of the course. The target-synthesis approach was appreciated by the students and enjoyed by the staff. We believe the students left the course with a greater appreciation for laboratory research. It takes more work to set up and run this type of course than the traditional follow-the-recipe course, but in our experience it was worth the extra effort.
Using Laboratory Homework to Facilitate Skill Integration and Assess Understanding in Intermediate Physics Courses

NASA Astrophysics Data System (ADS)

Johnston, Marty; Jalkio, Jeffrey

2013-04-01

By the time students have reached the intermediate level physics courses they have been exposed to a broad set of analytical, experimental, and computational skills. However, their ability to independently integrate these skills into the study of a physical system is often weak. To address this weakness and assess their understanding of the underlying physical concepts we have introduced laboratory homework into lecture based, junior level theoretical mechanics and electromagnetics courses. A laboratory homework set replaces a traditional one and emphasizes the analysis of a single system. In an exercise, students use analytical and computational tools to predict the behavior of a system and design a simple measurement to test their model. The laboratory portion of the exercises is straight forward and the emphasis is on concept integration and application. The short student reports we collect have revealed misconceptions that were not apparent in reviewing the traditional homework and test problems. Work continues on refining the current problems and expanding the problem sets.
Raising environmental awareness through applied biochemistry laboratory experiments.

PubMed

Salman Ashraf, S

2013-01-01

Our environment is under constant pressure and threat from various sources of pollution. Science students, in particular chemistry students, must not only be made aware of these issues, but also be taught that chemistry (and science) can provide solutions to such real-life issues. To this end, a newly developed biochemistry laboratory experiment is described that guides students to learn about the applicability of peroxidase enzymes to degrade organic dyes (as model pollutants) in simulated waste water. In addition to showing how enzymes can potentially be used for waste water remediation, various factors than can affect enzyme-based reactions such as pH, temperature, concentration of substrates/enzymes, and denaturants can also be tested. This "applied biotechnology" experiment was successfully implemented in an undergraduate biochemistry laboratory course to enhance students' learning of environmental issues as well important biochemistry concepts. Student survey confirmed that this laboratory experiment was successful in achieving the objectives of raising environmental awareness in students and illustrating the usefulness of chemistry in solving real-life problems. This experiment can be easily adopted in an introductory biochemistry laboratory course and taught as an inquiry-guided exercise. © 2013 by The International Union of Biochemistry and Molecular Biology.
A Laboratory Exercise to Illustrate Protein-Membrane Interactions

ERIC Educational Resources Information Center

Weers, Paul M. M.; Prenner, Elmar J.; Curic, Spomenka; Lohmeier-Vogel, Elke M.

2016-01-01

The laboratory protocol presented here takes about 3 hours to perform and investigates protein and lipid interactions. Students first purify His6-tagged human apolipoprotein A-I (apoA-I) with Ni-NTA affinity resin in a simple batch protocol and prepare multilamellar vesicles (MLV) from pre-dried phospholipid films. When apoA-I is added to the MLV,…
Communicating out loud: Midwifery students' experiences of a simulation exercise for neonatal resuscitation.

PubMed

Carolan-Olah, Mary; Kruger, Gina; Brown, Vera; Lawton, Felicity; Mazzarino, Melissa; Vasilevski, Vidanka

2018-03-01

Midwifery students feel unprepared to deal with commonly encountered emergencies, such as neonatal resuscitation. Clinical simulation of emergencies may provide a safe forum for students to develop necessary skills. A simulation exercise, for neonatal resuscitation, was developed and evaluated using qualitative methods. Pre and post-simulation questions focussed on student confidence and knowledge of resuscitation. Data were analysed using a thematic analysis approach. Pre-simulation questions revealed that most students considered themselves not very confident/unsure about their level of confidence in undertaking neonatal resuscitation. Most correctly identified features of the neonate requiring resuscitation. Post-simulation, students indicated that their confidence and knowledge of neonatal resuscitation had improved. Themes included: gaining confidence; understanding when to call for help; understanding the principles of resuscitation; tailoring simulation/education approaches to student needs. Students benefits included improved knowledge, confidence and skills. Participants unanimously suggested a program of simulation exercises, over a longer period of time, to reinforce knowledge and confidence gains. Ideally, students would like to actively participate in the simulation, rather than observe. Copyright © 2017. Published by Elsevier Ltd.
Evaluation of an Environmental Science Laboratory Curriculum.

ERIC Educational Resources Information Center

Berger, Toby Esther

The curriculum evaluated in this study is a series of innovative exercises offered as part of an introductory science course at Barnard College. It was hypothesized that students receiving the experimental treatment in the laboratory would show significant changes in cognitive achievement in environmental science and in their attitudes towards…
Students' perceptions of academic dishonesty in a chemistry classroom laboratory

NASA Astrophysics Data System (ADS)

Del Carlo, Dawn Irene

Academic dishonesty has been an important issue in the classroom for as long as the classroom has been in use. Most reports pertain to exams, homework, and plagiarism of term papers but, one area that has not been studied extensively is that of the classroom laboratory. My work focuses on three guiding questions: (1) What are students' perceptions toward academic dishonesty in a laboratory based class? (2) What distinction if any do students make between this type of academic dishonesty compared to dishonesty that may occur in a research laboratory? (3) How if at all do these perceptions change with age and/or research experience? Four major assertions come from this work. The first is that students do not think that what they do in the classroom laboratory is science and consequently do not treat the classroom laboratory differently than any other academic class. Additionally, they make a clear distinction between what happens in a class lab and what happens in a research or industrial lab. Consequently, students perceive there to be a significant difference in dishonesty between those two settings. Finally, this distinction is not as pronounced in graduate students and is seen as an element of maturity. In the process of determining the above assertions, students perceptions on the nature of science were revealed and are also discussed. These beliefs have direct relevance to students' perceptions of dishonesty in both lab atmospheres.
A Coastal Environment Field and Laboratory Activity for an Undergraduate Geomorphology Course

ERIC Educational Resources Information Center

Ellis, Jean T.; Rindfleisch, Paul R.

2006-01-01

A field and laboratory exercise for an undergraduate geomorphology class is described that focuses on the beach. The project requires one day of fieldwork and two laboratory sessions. In the field, students measure water surface fluctuations (waves) with a pressure sensor, survey beach profiles, collect sediment samples, and observe the beach…
Comparing the Performance of Distance Learning and Traditional Students in a Business Simulation Exercise

ERIC Educational Resources Information Center

Kotey, Bernice; Anderson, Philip H.

2005-01-01

The performance of distant students in a simulation exercise for a Small Business Management (SBM) course was compared with that of internal students and the demographic and psychological variables associated with the performance of each student group were examined. Distant students matched or exceeded the performance of internal students in…
Exercising with an iPod, friend, or neither: which is better for psychological benefits?

PubMed

Plante, Thomas G; Gustafson, Carissa; Brecht, Carrie; Imberi, Jenny; Sanchez, Jacqueline

2011-01-01

To examine the role of music and social contact on exercise benefits. Two hundred twenty-nine (n = 229) students were randomly assigned to one of 6 conditions: biking alone with iPod or friend in a laboratory, walking alone with iPod or friend outdoors, or biking or walking alone in control conditions. All participants completed 20 minutes of exercise at 70% of their maximum target heart rate. Exercising in control conditions indoors resulted in a more relaxed and calm response. Exercising outdoors was more enjoyable and resulted in less tension and stress. Exercise environment impacts psychological benefits of exercise.
An Infiltration Exercise for Introductory Soil Science

ERIC Educational Resources Information Center

Barbarick, K. A.; Ippolito, J. A.; Butters, G.; Sorge, G. M.

2005-01-01

One of the largest challenges in teaching introductory soil science is explaining the dynamics of soil infiltration. To aid students in understanding the concept and to further engage them in active learning in the soils laboratory course, we developed an exercise using Decagon Mini-Disk Infiltrometers with a tension head (h[subscript o]) of 2 cm.…
The prevalence of compulsive eating and exercise among college students: an exploratory study.

PubMed

Guidi, Jenny; Pender, Maribeth; Hollon, Steven D; Zisook, Sidney; Schwartz, Faye H; Pedrelli, Paola; Farabaugh, Amy; Fava, Maurizio; Petersen, Timothy J

2009-01-30

Eating disturbances continue to grow among college students, and researchers have begun to investigate factors that may lead to abnormal eating behaviors in this population. Recent research has also suggested that excessive exercise can become a compulsive behavior that may affect psychological health. The aim of this exploratory study was to evaluate the relationships between both compulsive eating and exercise, and demographic and clinical variables in a college population. Participants were 589 undergraduates (mean age 20 years) recruited during a mental health screening at two different campuses. Participants completed a screening package of measures including a questionnaire about socio-demographic data, the Beck Depression Inventory (BDI), the Beck Hopelessness Scale (BHS), the Consumptive Habits Questionnaire (CHQ), the Modified Overt Aggression Scale-Self-rated version (MOAS), and the Quality of Life Enjoyment and Satisfaction Questionnaire-Short version (QLESQ). A prevalence rate of 7.2% was found for compulsive eating and 18.1% for compulsive exercise, as measured by the CHQ. Only 11 participants (1.9%) reported both compulsive eating and exercise. There was no significant relationship between compulsive eating and compulsive exercise. The results suggest that college students may represent a group at high risk of developing abnormal eating behaviors and compulsive exercise.
Impact of the "Planning to be Active" leisure time physical exercise program on rural high school students.

PubMed

Hortz, Brian; Petosa, Rick

2006-10-01

The purpose of the study was to evaluate the effects of a Social Cognitive Theory-based intervention designed to increase the frequency of leisure time planned moderate and vigorous physical exercise among rural high school students attending physical education class. Students in treatment and comparison groups were exposed to an activity-based physical education curricula. The treatment group received eight behavioral skill-building lessons integrated into the existing curriculum. The Social Cognitive Theory-based educational treatment increased levels of moderate physical exercise occurring outside the classroom. This study demonstrated an impact on adolescent leisure time moderate physical exercise using classroom instruction. The intervention was most effective with students who were previously sedentary. The curricular approaches used to promote regular moderate exercise may be useful for sedentary adolescents.
Clay Caterpillars: A Tool for Ecology & Evolution Laboratories

ERIC Educational Resources Information Center

Barber, Nicholas A.

2012-01-01

I present a framework for ecology and evolution laboratory exercises using artificial caterpillars made from modeling clay. Students generate and test hypotheses about predation rates on caterpillars that differ in appearance or "behavior" to understand how natural selection by predators shapes distribution and physical characteristics of…
Sounds for Study: Speech and Language Therapy Students' Use and Perception of Exercise Podcasts for Phonetics

ERIC Educational Resources Information Center

Knight, Rachael-Anne

2010-01-01

Currently little is known about how students use podcasts of exercise material (as opposed to lecture material), and whether they perceive such podcasts to be beneficial. This study aimed to assess how exercise podcasts for phonetics are used and perceived by second year speech and language therapy students. Eleven podcasts of graded phonetics…

Using an international p53 mutation database as a foundation for an online laboratory in an upper level undergraduate biology class.

PubMed

Melloy, Patricia G

2015-01-01

A two-part laboratory exercise was developed to enhance classroom instruction on the significance of p53 mutations in cancer development. Students were asked to mine key information from an international database of p53 genetic changes related to cancer, the IARC TP53 database. Using this database, students designed several data mining activities to look at the changes in the p53 gene from a number of perspectives, including potential cancer-causing agents leading to particular changes and the prevalence of certain p53 variations in certain cancers. In addition, students gained a global perspective on cancer prevalence in different parts of the world. Students learned how to use the database in the first part of the exercise, and then used that knowledge to search particular cancers and cancer-causing agents of their choosing in the second part of the exercise. Students also connected the information gathered from the p53 exercise to a previous laboratory exercise looking at risk factors for cancer development. The goal of the experience was to increase student knowledge of the link between p53 genetic variation and cancer. Students also were able to walk a similar path through the website as a cancer researcher using the database to enhance bench work-based experiments with complementary large-scale database p53 variation information. © 2014 The International Union of Biochemistry and Molecular Biology.
Clustered Stomates in "Begonia": An Exercise in Data Collection & Statistical Analysis of Biological Space

ERIC Educational Resources Information Center

Lau, Joann M.; Korn, Robert W.

2007-01-01

In this article, the authors present a laboratory exercise in data collection and statistical analysis in biological space using clustered stomates on leaves of "Begonia" plants. The exercise can be done in middle school classes by students making their own slides and seeing imprints of cells, or at the high school level through collecting data of…
A Laboratory Exercise in Physics: Determining Single Capacitances and Series and Parallel Combinations of Capacitance.

ERIC Educational Resources Information Center

Schlenker, Richard M.

This document presents a series of physics experiments which allow students to determine the value of unknown electrical capacitors. The exercises include both parallel and series connected capacitors. (SL)
Biocatalyzed Regioselective Synthesis in Undergraduate Organic Laboratories: Multistep Synthesis of 2-Arachidonoylglycerol

ERIC Educational Resources Information Center

Johnston, Meghan R.; Makriyannis, Alexandros; Whitten, Kyle M.; Drew, Olivia C.; Best, Fiona A.

2016-01-01

In order to introduce the concepts of biocatalysis and its utility in synthesis to organic chemistry students, a multistep synthesis of endogenous cannabinergic ligand 2-arachidonoylglycerol (2-AG) was tailored for use as a laboratory exercise. Over four weeks, students successfully produced 2-AG, purifying and characterizing products at each…
Asking the next generation: the implementation of pre-university students’ ideas about physics laboratory preparation exercises

NASA Astrophysics Data System (ADS)

Dunnett, K.; Bartlett, P. A.

2018-01-01

It was planned to introduce online pre-laboratory session activities to a first-year undergraduate physics laboratory course to encourage a minimum level of student preparation for experiments outside the laboratory environment. A group of 16 and 17 year old laboratory work-experience students were tasked to define and design a pre-laboratory activity based on experiments that they had been undertaking. This informed the structure, content and aims of the activities introduced to a first year physics undergraduate laboratory course, with the particular focus on practising the data handling. An implementation study showed how students could try to optimise high grades, rather than gain efficiency-enhancing experience if careful controls were not put in place by assessors. However, the work demonstrated that pre-university and first-year physics students can take an active role in developing scaffolding activities that can help to improve the performance of those that follow their footsteps.
How-to-Do-It. An Exercise in Gene Mapping.

ERIC Educational Resources Information Center

Seidel-Rogol, Bonnie L.

1990-01-01

Described is a laboratory exercise designed to introduce students to the theory and practice of gene mapping including RNA extraction, sucrose density gradient centrifugation, labelling of nucleic acids in vitro, DNA extraction, digestion of DNA with restriction enzymes, and the southern hybridization analysis. Procedures and sample results are…
Transmission of a Viral Disease (AIDS) Detected by a Modified ELISA Reaction: A Laboratory Simulation.

ERIC Educational Resources Information Center

Grimes, William J.; Chambers, Linda; Kubo, Kenneth M.; Narro, Martha L.

1998-01-01

Describes a laboratory exercise that simulates the spread of an infectious agent among students in a classroom. Uses a modified Enzyme Linked ImmunoSorbent Assay (ELISA) to provide students with experience using an authentic diagnostic tool for detecting human infections. (DDR)
Theoretical Hammett Plot for the Gas-Phase Ionization of Benzoic Acid versus Phenol: A Computational Chemistry Lab Exercise

ERIC Educational Resources Information Center

Ziegler, Blake E.

2013-01-01

Computational chemistry undergraduate laboratory courses are now part of the chemistry curriculum at many universities. However, there remains a lack of computational chemistry exercises available to instructors. This exercise is presented for students to develop skills using computational chemistry software while supplementing their knowledge of…
Promoting Inquiry-Based Teaching in Laboratory Courses: Are We Meeting the Grade?

PubMed Central

Butler, Amy; Burke da Silva, Karen

2014-01-01

Over the past decade, repeated calls have been made to incorporate more active teaching and learning in undergraduate biology courses. The emphasis on inquiry-based teaching is especially important in laboratory courses, as these are the courses in which students are applying the process of science. To determine the current state of research on inquiry-based teaching in undergraduate biology laboratory courses, we reviewed the recent published literature on inquiry-based exercises. The majority of studies in our data set were in the subdisciplines of biochemistry, cell biology, developmental biology, genetics, and molecular biology. In addition, most exercises were guided inquiry, rather than open ended or research based. Almost 75% of the studies included assessment data, with two-thirds of these studies including multiple types of assessment data. However, few exercises were assessed in multiple courses or at multiple institutions. Furthermore, assessments were rarely based on published instruments. Although the results of the studies in our data set show a positive effect of inquiry-based teaching in biology laboratory courses on student learning gains, research that uses the same instrument across a range of courses and institutions is needed to determine whether these results can be generalized. PMID:25185228
How Students Cope with a Procedureless Lab Exercise.

ERIC Educational Resources Information Center

Pickering, Miles; Crabtree, Robert H.

1979-01-01

Reports a study conducted to determine how students cope with a procedureless laboratory situation in physical chemistry. Students are expected to use ingenuity, determine choice of sample size, conditions, and temperature extrapolation in an experiment on measuring heat of solution of an unknown salt. (Author/SA)
Laboratory Sequence in Computational Methods for Introductory Chemistry

NASA Astrophysics Data System (ADS)

Cody, Jason A.; Wiser, Dawn C.

2003-07-01

A four-exercise laboratory sequence for introductory chemistry integrating hands-on, student-centered experience with computer modeling has been designed and implemented. The progression builds from exploration of molecular shapes to intermolecular forces and the impact of those forces on chemical separations made with gas chromatography and distillation. The sequence ends with an exploration of molecular orbitals. The students use the computers as a tool; they build the molecules, submit the calculations, and interpret the results. Because of the construction of the sequence and its placement spanning the semester break, good laboratory notebook practices are reinforced and the continuity of course content and methods between semesters is emphasized. The inclusion of these techniques in the first year of chemistry has had a positive impact on student perceptions and student learning.
Changing Students' Perceptions of Inequality?: Combining Traditional Methods and a Budget Exercise to Facilitate a Sociological Perspective

ERIC Educational Resources Information Center

Garoutte, Lisa; Bobbitt-Zeher, Donna

2011-01-01

Budget exercises are frequently used in introductory and social problems courses to facilitate student understanding of income inequality. But do these exercises actually lead to greater sociological understanding? To explore this issue, the authors studied undergraduate students enrolled in introductory sociology courses during the 2008-2009…
The Toxics Geography Exercise: Students Use Inquiry to Uncover Uses and Limits of Data in Policy Analysis

ERIC Educational Resources Information Center

Duke, L. Donald; Schmidt, Diane L.

2011-01-01

The Toxics Geography Exercise was developed as an application-oriented exercise to develop skills in critical analysis in groups of undergraduate students from widely diverse academic backgrounds. Students use publicly available data on industrial activities, history of toxic material disposal, basic chemistry, regulatory approaches of federal and…
Chemical Analysis of Soils: An Environmental Chemistry Laboratory for Undergraduate Science Majors.

ERIC Educational Resources Information Center

Willey, Joan D.; Avery, G. Brooks, Jr.; Manock, John J.; Skrabal, Stephen A.; Stehman, Charles F.

1999-01-01

Describes a laboratory exercise for undergraduate science students in which they evaluate soil samples for various parameters related to suitability for crop production and capability for retention of contaminants. (Contains 18 references.) (WRM)
Integration of Video-Based Demonstrations to Prepare Students for the Organic Chemistry Laboratory

NASA Astrophysics Data System (ADS)

Nadelson, Louis S.; Scaggs, Jonathan; Sheffield, Colin; McDougal, Owen M.

2015-08-01

Consistent, high-quality introductions to organic chemistry laboratory techniques effectively and efficiently support student learning in the organic chemistry laboratory. In this work, we developed and deployed a series of instructional videos to communicate core laboratory techniques and concepts. Using a quasi-experimental design, we tested the videos in five traditional laboratory experiments by integrating them with the standard pre-laboratory student preparation presentations and instructor demonstrations. We assessed the influence of the videos on student laboratory knowledge and performance, using sections of students who did not view the videos as the control. Our analysis of pre-quizzes revealed the control group had equivalent scores to the treatment group, while the post-quiz results show consistently greater learning gains for the treatment group. Additionally, the students who watched the videos as part of their pre-laboratory instruction completed their experiments in less time.
Inquiry-Based Laboratory Activities in Electrochemistry: High School Students' Achievements and Attitudes

NASA Astrophysics Data System (ADS)

Acar Sesen, Burcin; Tarhan, Leman

2013-02-01

This study aimed to investigate the effects of inquiry-based laboratory activities on high school students' understanding of electrochemistry and attitudes towards chemistry and laboratory work. The participants were 62 high school students (average age 17 years) in an urban public high school in Turkey. Students were assigned to experimental ( N = 30) and control groups ( N = 32). The experimental group was taught using inquiry-based laboratory activities developed by the researchers and the control group was instructed using traditional laboratory activities. The results of the study indicated that instruction based on inquiry-based laboratory activities caused a significantly better acquisition of scientific concepts related to electrochemistry, and produced significantly higher positive attitudes towards chemistry and laboratory. In the light of the findings, it is suggested that inquiry-based laboratory activities should be developed and applied to promote students' understanding in chemistry subjects and to improve their positive attitudes.
A DNA Melting Exercise for a Large Laboratory Class

ERIC Educational Resources Information Center

Levine, Lauren A.; Junker, Matthew; Stark, Myranda; Greenleaf, Dustin

2015-01-01

A simple and economical experimental setup is described that enables multiple individuals or groups within a laboratory class to measure the thermal melting of double stranded DNA simultaneously. The setup utilizes a basic spectrophotometer capable of measuring absorbance at 260 nm, UV plastic cuvettes, and a stirring hot plate. Students measure…
The Lifestyle Behaviours and Exercise Beliefs of Undergraduate Student Nurses: A Descriptive Study

ERIC Educational Resources Information Center

Burke, Eimear; McCarthy, Bernard

2011-01-01

Purpose: Only limited published research is available exploring the lifestyle practices of student nurses. The purpose of this paper is to explore the lifestyle behaviours and exercise beliefs of Irish student nurses. Design/methodology/approach: A descriptive survey design was used. First-year and third-year undergraduate student nurses (n=182)…
Effects of Computer Animation Exercises on Student Cognitive Processes.

ERIC Educational Resources Information Center

Fowler, Will

A study examining the effects of computer animation exercises on cognitive development asked two groups of seventh graders to create computer animations, working from a simple mythic text. The ability of students to create narrative scenarios from this mythic text was analyzed. These scenarios were then recreated in the school computer lab, using…
The Impact of Rope Jumping Exercise on Physical Fitness of Visually Impaired Students

ERIC Educational Resources Information Center

Chen, Chao-Chien; Lin, Shih-Yen

2011-01-01

The main purpose of this study was to investigate the impact of rope jumping exercise on the health-related physical fitness of visually impaired students. The participants' physical fitness was examined before and after the training. The exercise intensity of the experimental group was controlled with Rating of Perceived Exertion (RPE) (values…

Exercise and academic performance among nursing and kinesiology students at US colleges.

PubMed

Bellar, David; Judge, Lawrence W; Petersen, Jeffrey; Bellar, Ann; Bryan, Charity L

2014-01-01

Lack of physical activity is a contributor to the obesity epidemic and is speculated to relate to reduced academic performance; however, this link has yet to be examined within the college population. The purpose of this study in a group of undergraduate students, was to determine if aerobic exercise activity was related to academic performance. The participants for this study included 740 students at multiple universities enrolled in nursing and kinesiology studies. The participants completed the Leisure and Physical Activity Questionnaire. Pearson's χ(2) analysis revealed differences in grade point average with aerobic activity (χ(2) = 44.29, P ≤ 0.001) as well as a trend toward differences in grade point average with weightlifting activity (χ(2) = 22.69, P = 0.61). Based on these findings it can be suggested that college students engage in greater aerobic exercise.
Public health laboratory workforce outreach in Hawai'i: CLIA-focused student internship pilot program at the state laboratories.

PubMed

Whelen, A Christian; Kitagawa, Kent

2013-01-01

Chronically understaffed public health laboratories depend on a decreasing number of employees who must assume broader responsibilities in order to sustain essential functions for the many clients the laboratories support. Prospective scientists considering a career in public health are often not aware of the requirements associated with working in a laboratory regulated by the Clinical Laboratory Improvement Amendments (CLIA). The purpose of this pilot internship was two-fold; introduce students to operations in a regulated laboratory early enough in their academics so that they could make good career decisions, and evaluate internship methodology as one possible solution to workforce shortages. Four interns were recruited from three different local universities, and were paired with an experienced State Laboratories Division (SLD) staff mentor. Students performed tasks that demonstrated the importance of CLIA regulations for 10-15 hours per week over a 14 week period. Students also attended several directed group sessions on regulatory lab practice and quality systems. Both interns and mentors were surveyed periodically during the semester. Surveys of mentors and interns indicated overall positive experiences. One-on-one pairing of experienced public health professionals and students seems to be a mutually beneficial arrangement. Interns reported that they would participate if the internship was lower paid, unpaid, or for credit only. The internship appeared to be an effective tool to expose students to employment in CLIA-regulated laboratories, and potentially help address public health laboratory staffing shortfalls. Longer term follow up with multiple classes of interns may provide a more informed assessment.
Dissociation of the Ethyl Radical: An Exercise in Computational Chemistry

ERIC Educational Resources Information Center

Nassabeh, Nahal; Tran, Mark; Fleming, Patrick E.

2014-01-01

A set of exercises for use in a typical physical chemistry laboratory course are described, modeling the unimolecular dissociation of the ethyl radical to form ethylene and atomic hydrogen. Students analyze the computational results both qualitatively and quantitatively. Qualitative structural changes are compared to approximate predicted values…
Dye Degradation by Fungi: An Exercise in Applied Science for Biology Students

ERIC Educational Resources Information Center

Lefebvre, Daniel D.; Chenaux, Peter; Edwards, Maureen

2005-01-01

An easily implemented practical exercise in applied science for biology students is presented that uses fungi to degrade an azo-dye. This is an example of bioremediation, the employment of living organisms to detoxify or contain pollutants. Its interdisciplinary nature widens students' perspectives of biology by exposing them to a chemical…
Association Between Exercise Participation and Quality of Sleep and Life Among University Students in Taiwan.

PubMed

Chang, Shih-Pei; Shih, Kuo-Sen; Chi, Chung-Pu; Chang, Chin-Ming; Hwang, Kai-Lin; Chen, Yu-Hsuan

2016-05-01

This cross-sectional survey study examined exercise, sleep quality, and quality of life (QOL) in 1230 Taiwanese university students. Compared with women, men had higher body mass index (BMI) (22.3 ± 4.1 vs 20.7 ± 3.5 kg/m(2)), higher exercise frequency (2.6 ± 1.7 vs 2.0 ± 1.4 d/wk), better sleep quality (global Pittsburgh Sleep Quality Index 6.0 ± 2.8 vs 6.5 ± 2.7), better physical QOL (physical component summary 52.7 ± 6.2 vs 51.7 ± 6.6), and higher reporting of good self-perceived health (62.2% vs 43.3%) (P <01). However, gender differences were nonsignificant after multivariable adjustment. Exercise frequency, sleep quality, and QOL were significantly intercorrelated. After multivariable adjustment, self-perceived health and satisfaction with exercise participation predicted quality of sleep and QOL (P <01). Exercise frequency was positively correlated (P =012), and exercise intensity was negatively associated (P <001) with physical QOL. In conclusion, those who regularly exercised (at least 1 d/wk or 2.5 h/wk) had better QOL. Students with better self-perceived health or satisfaction with exercise participation also had better quality of sleep and better QOL. © 2016 APJPH.
Man vs. Machine: A Junior-level Laboratory Exercise Comparing Human and Instrumental Detection Limits

ERIC Educational Resources Information Center

Elias, Ryan J.; Hopfer, Helene; Hofstaedter, Amanda N.; Hayes, John E.

2017-01-01

The human nose is a very sensitive detector and is able to detect potent aroma compounds down to low ng/L levels. These levels are often below detection limits of analytical instrumentation. The following laboratory exercise is designed to compare instrumental and human methods for the detection of volatile odor active compounds. Reference…
"Mind Blown"--Including Exercise Science Students as Research Assistants to Reduce Ageist Perceptions

ERIC Educational Resources Information Center

Forlenza, Samuel T.; Bourassa, Dara

2017-01-01

The amount of older adults is increasing rapidly and the demands of an aging population will need to be met by professionals in many fields, including exercise science. However, many undergraduate students do not want to work with older adults. Therefore, this qualitative study sought to examine the experiences and perceptions of exercise science…
Vesicle Stability and Dynamics: An Undergraduate Biochemistry Laboratory

ERIC Educational Resources Information Center

Del Bianco, Cristina; Torino, Domenica; Mansy, Sheref S.

2014-01-01

A laboratory exercise is described that helps students learn about lipid self-assembly by making vesicles under different solution conditions. Concepts covering the chemical properties of different lipids, the dynamics of lipids, and vesicle stability are explored. Further, the described protocol is easy and cheap to implement. One to two…
Identification of the students' critical thinking skills through biochemistry laboratory work report

NASA Astrophysics Data System (ADS)

Anwar, Yunita Arian Sani; Senam, Laksono, Endang W.

2017-08-01

This work aims to (1) identify the critical thinking skills of student based on their ability to set up laboratory work reports, and (2) analyze the implementation of biochemistry laboratory work. The method of quantitative content analysis was employed. Quantitative data were in the form of critical thinking skills through the assessment of students' laboratory work reports and questionnaire data. Hoyo rubric was used to measure critical thinking skills with 10 indicators, namely clarity, accuracy, precision, consistency, relevance, evidence, reason, depth, breadth, and fairness. The research sample consisted of 105 students (35 male, 70 female) of Mataram University who took a Biochemistry course and 2 lecturers of Biochemistry course. The results showed students' critical thinking skills through laboratory work reports were still weak. Analysis of the questionnaire showed that three indicators become the biggest problems during the laboratory work implementation, namely, lecturers' involved in laboratory work implementation, the integration of laboratory work implementation of learning in the classroom has not been done optimally and laboratory work implementation as an effort to train critical thinking skills is not optimal yet.
Developing a new experimental system for an undergraduate laboratory exercise to teach theories of visuomotor learning.

PubMed

Kasuga, Shoko; Ushiba, Junichi

2014-01-01

Humans have a flexible motor ability to adapt their movements to changes in the internal/external environment. For example, using arm-reaching tasks, a number of studies experimentally showed that participants adapt to a novel visuomotor environment. These results helped develop computational models of motor learning implemented in the central nervous system. Despite the importance of such experimental paradigms for exploring the mechanisms of motor learning, because of the cost and preparation time, most students are unable to participate in such experiments. Therefore, in the current study, to help students better understand motor learning theories, we developed a simple finger-reaching experimental system using commonly used laptop PC components with an open-source programming language (Processing Motor Learning Toolkit: PMLT). We found that compared to a commercially available robotic arm-reaching device, our PMLT accomplished similar learning goals (difference in the error reduction between the devices, P = 0.10). In addition, consistent with previous reports from visuomotor learning studies, the participants showed after-effects indicating an adaptation of the motor learning system. The results suggest that PMLT can serve as a new experimental system for an undergraduate laboratory exercise of motor learning theories with minimal time and cost for instructors.
Using the Laboratory to Engage All Students in Science Practices

ERIC Educational Resources Information Center

Walker, J. P.; Sampson, V.; Southerland, S.; Enderle, P. J.

2016-01-01

This study examines the extent to which the type of instruction used during a general chemistry laboratory course affects students' ability to use core ideas to engage in science practices. We use Ford's (2008) description of the nature of scientific practices to categorize what students do in the laboratory as either empirical or…
Development of Accessible Laboratory Experiments for Students with Visual Impairments

ERIC Educational Resources Information Center

Kroes, KC; Lefler, Daniel; Schmitt, Aaron; Supalo, Cary A.

2016-01-01

The hands-on laboratory experiments are frequently what spark students' interest in science. Students who are blind or have low vision (BLV) typically do not get the same experience while participating in hands-on activities due to accessibility. Over the course of approximately nine months, common chemistry laboratory experiments were adapted and…
Power Electronics Design Laboratory Exercise for Final-Year M.Sc. Students

ERIC Educational Resources Information Center

Max, L.; Thiringer, T.; Undeland, T.; Karlsson, R.

2009-01-01

This paper presents experiences and results from a project task in power electronics for students at Chalmers University of Technology, Goteborg, Sweden, based on a flyback test board. The board is used in the course Power Electronic Devices and Applications. In the project task, the students design snubber circuits, improve the control of the…
Characterizing High School Students' Written Explanations in Biology Laboratories

ERIC Educational Resources Information Center

Peker, Deniz; Wallace, Carolyn S.

2011-01-01

The purpose of this qualitative interpretive research study was to examine high school students' written scientific explanations during biology laboratory investigations. Specifically, we characterized the types of epistemologies and forms of reasoning involved in students' scientific explanations and students' perceptions of scientific…
Boundaries as Mechanisms for Learning in Emergency Exercises with Students from Emergency Service Organisations

ERIC Educational Resources Information Center

Andersson, Annika

2016-01-01

To prepare emergency response organisations for collaborative work in unpredictable and dynamic situations, various types of exercises are widely used. Still, our knowledge of collaboration exercises with emergency response students is limited. This study aimed to contribute to this field by exploring boundaries that emerged between collaborating…
Perceptions about exercise and intrinsic motivation of students attending a health-related physical education program.

PubMed

Papacharisis, Vassilios; Goudas, Marios

2003-12-01

The present study examined effects of sex, attitude towards physical activity, perceived barriers for participation in physical activity, and students' perception of their parents' participation in physical activity on the intrinsic motivation of students participating in a health related program in physical education. 643 students (303 boys and 340 girls) responded to questionnaires measuring intrinsic motivation, attitudes towards physical activity, perceived barriers to exercise and perceived parents' participation in physical activity. Mean age was 12.9 yr. (SD=1.2, range 11-14 years). Analysis indicated that students' intrinsic motivation towards the program was influenced by perceived barriers to exercise. Sex, attitudes towards physical activity, and perceived parents' participation in physical activity seem to be less important.
Student Perceptions of Chemistry Laboratory Learning Environments, Student-Teacher Interactions and Attitudes in Secondary School Gifted Education Classes in Singapore

NASA Astrophysics Data System (ADS)

Lang, Quek Choon; Wong, Angela F. L.; Fraser, Barry J.

2005-09-01

This study investigated the chemistry laboratory classroom environment, teacher-student interactions and student attitudes towards chemistry among 497 gifted and non-gifted secondary-school students in Singapore. The data were collected using the 35-item Chemistry Laboratory Environment Inventory (CLEI), the 48-item Questionnaire on Teacher Interaction (QTI) and the 30-item Questionnaire on Chemistry-Related Attitudes (QOCRA). Results supported the validity and reliability of the CLEI and QTI for this sample. Stream (gifted versus non-gifted) and gender differences were found in actual and preferred chemistry laboratory classroom environments and teacher-student interactions. Some statistically significant associations of modest magnitude were found between students' attitudes towards chemistry and both the laboratory classroom environment and the interpersonal behaviour of chemistry teachers. Suggestions for improving chemistry laboratory classroom environments and the teacher-student interactions for gifted students are provided.
Healthy Exercise Habits Are Associated With Lower Risk of Burnout and Higher Quality of Life Among U.S. Medical Students.

PubMed

Dyrbye, Liselotte N; Satele, Daniel; Shanafelt, Tait D

2017-07-01

Although burnout and low quality of life (QOL) are common among medical students, little remains known about personal fitness habits of medical students that may promote well-being. In 2012 the authors conducted a cross-sectional study of U.S. medical students to explore relationships between burnout, QOL, and compliance with Centers for Disease Control and Prevention (CDC) exercise recommendations. Wilcoxon-Mann-Whitney tests, Fisher exact tests, and multivariate logistic regression were performed. Among approximately 12,500 medical students invited to participate, 4,402 (35.2%) completed surveys. Most (2,738/4,367; 62.7%) engaged in aerobic exercise in accordance with CDC recommendations, while fewer (1,685/4,376; 38.5%) adhered to muscle strengthening recommendations. Burnout prevalence was lower among students who exercised aerobically consistent with CDC recommendations compared with those who exercised less (53.1% vs. 60.8%, P < .0001). Similarly, rates of burnout were also lower among students who strength trained consistent with CDC recommendations (51.8% vs. 58.6%, P < .0001). Overall QOL scores were higher for medical students adhering to CDC recommendations for aerobic exercise (7.2 vs. 6.6, P < .0001), strength training (7.2 vs. 6.8, P < .0001), or both aerobic and strength training (8.0 vs. 7.0, P < .0001). Compliance with CDC exercise guidelines remained independently associated with lower risk of burnout and higher QOL on multivariate analysis controlling for age, sex, relationship status, children, and year in school. Students whose aerobic exercise and/or strength training habits are consistent with CDC guidelines appear less likely to experience burnout and to have higher QOL.
Adding an extra dimension to what students see through the light microscope: a lab exercise demonstrating critical analysis for microscopy students.

PubMed

Garrill, Ashley

2011-01-01

This article describes an undergraduate lab exercise that demonstrates the importance of students thinking critically about what they see through a microscope. The students are given growth data from tip-growing organisms that suggest the cells grow in a pulsatile manner. The students then critique this data in several exercises that incorporate aspects of a problem-based learning approach, envisaging growth not just in two dimensions, but in three dimensions. For some cells, what appears to be pulsatile growth could also be explained by growth at a constant rate up and down in the z-axis. Depending on the diffraction pattern generated by the tip of the cell, this movement in the z-axis could go undetected. This raises the possibility that pulsatile growth seen in some species may be an artifact generated by the limitations of the light microscope. Students were subsequently asked to rate their awareness of the need to think critically about what they see through a microscope, using a scale of 1 (unaware) to 5 (very much aware). Prior to doing the lab exercise, the mean rating was 2.7; this increased to 4.4 after the lab. The students also indicated a likelihood of being more critical in their thinking in other aspects of their biology curriculum.
Behavioral regulations and dispositional flow in exercise among American college students relative to stages of change and gender.

PubMed

Ersöz, Gözde; Eklund, Robert C

2017-01-01

The purpose of this study was to examine behavioral regulations and dispositional flow in exercise among university students in terms of gender and stage of change. Data were collected from American college students (N = 257; M age ± SD = 23.02 ± 4.05) in Spring 2013. Behavioral regulations and dispositional flow in exercise were assessed, along with stage of change. Exercisers in the maintenance stage of change displayed significantly more self-determined motivation to exercise and a greater tendency to experience flow than those in preparation and action stages. Significant correlations were observed among behavioral regulations and flow state. Nonsignificant differences were observed for gender on behavioral regulations and dispositional flow in exercise. The results suggest that promotion of self-determined motivation and dispositional flow in exercisers may improve the quality of their experiences, as well as to foster their exercise behavior.

Effect of a Virtual Chemistry Laboratory on Students' Achievement

ERIC Educational Resources Information Center

Tatli, Zeynep; Ayas, Alipasa

2013-01-01

It is well known that laboratory applications are of significant importance in chemistry education. However, laboratory applications have generally been neglected in recent educational environments for a variety of reasons. In order to address this gap, this study examined the effect of a virtual chemistry laboratory (VCL) on student achievement…
Effects of perfectionism and exercise on disordered eating in college students.

PubMed

Paulson, Lauren R; Rutledge, Patricia C

2014-01-01

This study examined two dimensions of perfectionism (Standards and Discrepancy), two aspects of exercise (cardiovascular and strength), and the interaction of these variables as predictors of disordered eating in female and male college students. Recruited participants (N=314; n=204 women) completed self-report measures of disordered eating (Eating Attitudes Test), perfectionism (Almost Perfect Scale-Revised; Standards and Discrepancy subscales), and exercise (strength and cardiovascular). Among women, there was a significant three-way interaction between the two dimensions of perfectionism (Standards and Discrepancy) and cardiovascular exercise. Also among women, there was a significant two-way interaction between the Standards dimension and strength exercise and between the Discrepancy dimension and strength exercise. There were no significant main effects or interactions among men. We found some support for the hypotheses that adaptive perfectionism (higher Standards coupled with lower Discrepancy) is a protective factor for disordered eating and that maladaptive perfectionism (higher Standards coupled with higher Discrepancy) is a risk factor, although, only among women who engaged in lower, but not higher, levels of cardiovascular exercise. The findings also suggest that it may be beneficial to consider dimensions of perfectionism and exercise separately when studying disordered eating. Copyright © 2013 Elsevier Ltd. All rights reserved.
Child Guidance for Child Caregivers: Student Laboratory Manual.

ERIC Educational Resources Information Center

Texas Tech Univ., Lubbock. Home Economics Curriculum Center.

Designed to enhance student knowledge of and skills in child guidance in group care settings, this manual provides 50 laboratory experiences for five units. Units cover foundations and assumptions (2 laboratory experiences), developmental factors (8), indirect guidance (14), direct guidance (14), and strategies (12). Each unit includes performance…
The Development and Implementation of an Integrating Pharmacy Practice Laboratory.

ERIC Educational Resources Information Center

Newton, Gail D.; And Others

1990-01-01

The intent of an integrating laboratory was to help pharmacy students learn to solve problems, make decisions, and develop good communication skills. Educational units included exercises in guided design, patient profile review, patient inquiries, extemporaneous prescription compounding, clinical literature evaluation, and videotapes of simulated…
Measuring maximum and standard metabolic rates using intermittent-flow respirometry: a student laboratory investigation of aerobic metabolic scope and environmental hypoxia in aquatic breathers.

PubMed

Rosewarne, P J; Wilson, J M; Svendsen, J C

2016-01-01

Metabolic rate is one of the most widely measured physiological traits in animals and may be influenced by both endogenous (e.g. body mass) and exogenous factors (e.g. oxygen availability and temperature). Standard metabolic rate (SMR) and maximum metabolic rate (MMR) are two fundamental physiological variables providing the floor and ceiling in aerobic energy metabolism. The total amount of energy available between these two variables constitutes the aerobic metabolic scope (AMS). A laboratory exercise aimed at an undergraduate level physiology class, which details the appropriate data acquisition methods and calculations to measure oxygen consumption rates in rainbow trout Oncorhynchus mykiss, is presented here. Specifically, the teaching exercise employs intermittent flow respirometry to measure SMR and MMR, derives AMS from the measurements and demonstrates how AMS is affected by environmental oxygen. Students' results typically reveal a decline in AMS in response to environmental hypoxia. The same techniques can be applied to investigate the influence of other key factors on metabolic rate (e.g. temperature and body mass). Discussion of the results develops students' understanding of the mechanisms underlying these fundamental physiological traits and the influence of exogenous factors. More generally, the teaching exercise outlines essential laboratory concepts in addition to metabolic rate calculations, data acquisition and unit conversions that enhance competency in quantitative analysis and reasoning. Finally, the described procedures are generally applicable to other fish species or aquatic breathers such as crustaceans (e.g. crayfish) and provide an alternative to using higher (or more derived) animals to investigate questions related to metabolic physiology. © 2016 The Fisheries Society of the British Isles.
Effects of image-based and text-based active learning exercises on student examination performance in a musculoskeletal anatomy course.

PubMed

Gross, M Melissa; Wright, Mary C; Anderson, Olivia S

2017-09-01

Research on the benefits of visual learning has relied primarily on lecture-based pedagogy, but the potential benefits of combining active learning strategies with visual and verbal materials on learning anatomy has not yet been explored. In this study, the differential effects of text-based and image-based active learning exercises on examination performance were investigated in a functional anatomy course. Each class session was punctuated with an average of 12 text-based and image-based active learning exercises. Participation data from 231 students were compared with their examination performance on 262 questions associated with the in-class exercises. Students also rated the helpfulness and difficulty of the in-class exercises on a survey. Participation in the active learning exercises was positively correlated with examination performance (r = 0.63, P < 0.001). When controlling for other key demographics (gender, underrepresented minority status) and prior grade point average, participation in the image-based exercises was significantly correlated with performance on examination questions associated with image-based exercises (P < 0.001) and text-based exercises (P < 0.01), while participation in text-based exercises was not. Additionally, students reported that the active learning exercises were helpful for seeing images of key ideas (94%) and clarifying key course concepts (80%), and that the image-based exercises were significantly less demanding, less hard and required less effort than text-based exercises (P < 0.05). The findings confirm the positive effect of using images and active learning strategies on student learning, and suggest that integrating them may be especially beneficial for learning anatomy. Anat Sci Educ 10: 444-455. © 2017 American Association of Anatomists. © 2017 American Association of Anatomists.
Biology of an Enzyme: A Research-Like Experience for Introductory Biology Students.

ERIC Educational Resources Information Center

Towle, David W.

1992-01-01

Presents a series of laboratory exercises designed to introduce students to a realistic experience in biological research that is feasible with large numbers of beginning biology majors. The exercises center on the study of alkaline phosphatase. (DDR)
Returning Fourth-Year Students to the Classroom/Laboratory.

ERIC Educational Resources Information Center

Markert, Ronald J.; Ogilvie, Charles D.

1980-01-01

The Eighth Semester Program of the Texas College of Osteopathic Medicine reintroduces classroom-laboratory activities into the medical students' clinical years in an attempt to "round out" students' education. Topics include development of a medical practice, government and the physician, counseling skills, and nutrition inpatient care.…
Application of a low-cost web-based simulation to improve students' practical skills in medical education.

PubMed

Moreno-Ger, Pablo; Torrente, Javier; Bustamante, Julián; Fernández-Galaz, Carmen; Fernández-Manjón, Baltasar; Comas-Rengifo, María Dolores

2010-06-01

Practical sessions in undergraduate medical education are often costly and have to face constraints in terms of available laboratory time and practice materials (e.g. blood samples from animals). This makes it difficult to increase the time each student spends at the laboratory. We consider that it would be possible to improve the effectiveness of the laboratory time by providing the students with computer-based simulations for prior rehearsal. However, this approach still presents issues in terms of development costs and distribution to the students. This study investigates the employment of low-cost simulation to allow medical students to rehearse practical exercises through a web-based e-learning environment. The aim is to maximize the efficiency of laboratory time and resources allocated by letting students become familiarized with the equipment and the procedures before they attend a laboratory session, but without requiring large-scale investment. Moreover, students can access the simulation via the Internet and rehearse at their own pace. We have studied the effects of such a simulation in terms of impact on the laboratory session, learning outcomes and student satisfaction. We created a simulation that covers the steps of a practical exercise in a Physiology course (measuring hematocrit in a blood sample). An experimental group (EG, n=66) played the simulation 1 week before the laboratory session. A control group (CG, n=77) attended the laboratory session without playing the simulation. After the session, all students completed a survey about their perception of the difficulty of the exercise on a scale of 1-10 and the HCT final value that they obtained. The students in the EG also completed a survey about their satisfaction with the experience. After the laboratory session, the perceived difficulty of the procedure was lower on average in the EG compared to the CG (3.52 vs. 4.39, 95% CI: 0.16-1.57, P=.016). There was no significant difference in terms of
Integrating Statistical Mechanics with Experimental Data from the Rotational-Vibrational Spectrum of HCl into the Physical Chemistry Laboratory

ERIC Educational Resources Information Center

Findley, Bret R.; Mylon, Steven E.

2008-01-01

We introduce a computer exercise that bridges spectroscopy and thermodynamics using statistical mechanics and the experimental data taken from the commonly used laboratory exercise involving the rotational-vibrational spectrum of HCl. Based on the results from the analysis of their HCl spectrum, students calculate bulk thermodynamic properties…
Responsive eLearning exercises to enhance student interaction with metabolic pathways.

PubMed

Roesler, William J; Dreaver-Charles, Kristine

2018-05-01

Successful learning of biochemistry requires students to engage with the material. In the past this often involved students writing out pathways by hand, and more recently directing students to online resources such as videos, songs, and animated slide presentations. However, even these latter resources do not really provide students an opportunity to engage with the material in an active fashion. As part of an online introductory metabolism course that was developed at our university, we created a series of twelve online interactive activities using Adobe Captivate 9. These activities targeted glycolysis, gluconeogenesis, the pentose phosphate pathway, glycogen metabolism, the citric acid cycle, and fatty acid oxidation. The interactive exercises consisted of two types. One involved dragging objects such as names of enzymes or allosteric modifiers to their correct drop locations such as a particular point in a metabolic pathway, a specific enzyme, and so forth. A second type involved clicking on objects, locations within a pathway, and so forth, in response to a particular question. In both types of exercises, students received feedback on their decisions in order to enhance learning. The student feedback received on these activities was very positive, and indicated that they found them to increase their confidence in the material and that they had learned the key principles of each pathway. © 2018 by The International Union of Biochemistry and Molecular Biology, 46(3):223-229, 2018. © 2018 The International Union of Biochemistry and Molecular Biology.
Detection of an ABCA1 variant associated with type 2 diabetes mellitus susceptibility for biochemistry and genetic laboratory courses.

PubMed

Legorreta-Herrera, M; Mosqueda-Romo, N A; Hernández-Clemente, F; Soto-Cruz, I

2013-01-01

We selected diabetes mellitus for this laboratory exercise to provide students with an explicit model for scientific research concerning the association between the R230C polymorphism and susceptibility to type 2 diabetes mellitus, which is highly prevalent in the Mexican population. We used a collaborative project-based learning to engage students to direct their own learning process. Students worked in small groups with the same learning goal to research, organize data, and present seminars to experimentally genotype the C230 variant and correctly interpret their results. At the conclusion of this laboratory exercise, the students were able to demonstrate a clear understanding of the relevant biological molecular principles to genotype the C230 variant, showed technical competency to carry out the experimental protocols with proficiency, and interpret their results using statistical analyses. The students discussed their understanding of the genetic technologies and the broader social and ethical implications of the research. A randomly selected team was trained to work as a "sentinel" to monitor their classmates and ensure the proper application of techniques. Moreover, the evaluation of this exercise is shared between the students and the instructors; the students evaluate their own work and the performance of their classmates. At the end of the course, the students complete a questionnaire to anonymously provide feedback and information regarding their perception of the learning outcomes. Overall, the student feedback was positive, indicating that the exercise was useful and that it would help to prepare the students for professional practice. Copyright © 2013 Wiley-Liss, Inc.
Acute psychological benefits of exercise performed at self-selected workloads: implications for theory and practice.

PubMed

Szabo, Attila

2003-09-01

Given that most studies to date examined the connection between exercise and affect without considering the participants' preferred exercise workload, in this research the affective-benefits of jogging or running at a participant-selected pace were investigated in a pilot field and a laboratory experiment. Ninety-six male and female students (19.5 yrs) took part in the pilot field experiment whereas 32 women (20.3 yrs) completed the laboratory experiment. In both experiments, the participants ran/jogged for 20 minutes at a self-selected pace. They completed an abbreviated version of a 'right now form' of the Profile of Mood States (POMS - Grove and Prapavessis, 1992) inventory before and after exercise. In both experiments all dependent measures changed significantly from pre- to post-exercise, except 'fatigue' and 'vigor' that did not change in the laboratory. Total mood disturbance (TMD) decreased significantly in both experiments (68% and 89%). No significant correlations were found between exercise intensity (expressed as percent (%) of maximal heart rate reserve) and the magnitude of changes seen in the dependent measures. It is concluded that exercising at a self-selected workload yields positive changes in affect that are unrelated to exercise intensity. These results suggest that the physiological theories linking exercise with positive changes in affect, in which exercise intensity is instrumental, could not account for the acute affective benefits of exercise. It is proposed that a 'cognitive appraisal hypothesis' may be more appropriate in explaining the acute affective benefits of exercise.
An Authentic RFLP Lab for High School or College Biology Students.

ERIC Educational Resources Information Center

Guilfoile, Patrick G.; Plum, Stephen

1998-01-01

Explains how students can perform an alternative authentic DNA fingerprinting analysis. Presents restriction fragment length polymorphism (RFLP) analysis and can serve as a simulated molecular epidemiology laboratory or as a simulated forensic laboratory exercise. (DDR)
Corrected Launch Speed for a Projectile Motion Laboratory

ERIC Educational Resources Information Center

Sanders, Justin M.; Boleman, Michael W.

2013-01-01

At our university, students in introductory physics classes perform a laboratory exercise to measure the range of a projectile fired at an assigned angle. A set of photogates is used to determine the initial velocity of the projectile (the launch velocity). We noticed a systematic deviation between the experimentally measured range and the range…
Modeling Stretching Modes of Common Organic Molecules with the Quantum Mechanical Harmonic Oscillator: An Undergraduate Vibrational Spectroscopy Laboratory Exercise

ERIC Educational Resources Information Center

Parnis, J. Mark; Thompson, Matthew G. K.

2004-01-01

An introductory undergraduate physical organic chemistry exercise that introduces the harmonic oscillator's use in vibrational spectroscopy is developed. The analysis and modeling exercise begins with the students calculating the stretching modes of common organic molecules with the help of the quantum mechanical harmonic oscillator (QMHO) model.
Examining Student Outcomes in University Computer Laboratory Environments: Issues for Educational Management

ERIC Educational Resources Information Center

Newby, Michael; Marcoulides, Laura D.

2008-01-01

Purpose: The purpose of this paper is to model the relationship between student performance, student attitudes, and computer laboratory environments. Design/methodology/approach: Data were collected from 234 college students enrolled in courses that involved the use of a computer to solve problems and provided the laboratory experience by means of…
Glycosidation of Methanol with Ribose: An Interdisciplinary Undergraduate Laboratory Experiment

ERIC Educational Resources Information Center

Simon, Erin; Cook, Katie; Pritchard, Meredith R.; Stripe, Wayne; Bruch, Martha; Bendinskas, Kestutis

2010-01-01

This exercise provides students hands-on experience with the topics of glycosidation, hemiacetal and acetal formation, proton nuclear magnetic resonance ([superscript 1]H NMR) spectroscopy, and kinetic and thermodynamic product formation. In this laboratory experiment, the methyl acetal of ribose is synthesized, and the kinetic and thermodynamic…
Students' Written Arguments in General Chemistry Laboratory Investigations

ERIC Educational Resources Information Center

Choi, Aeran; Hand, Brian; Greenbowe, Thomas

2013-01-01

This study aimed to examine the written arguments developed by college freshman students using the Science Writing Heuristic approach in inquiry-based general chemistry laboratory classrooms and its relationships with students' achievement in chemistry courses. Fourteen freshman students participated in the first year of the study while 19…
Individual and environmental factors related to stage of change in exercise behavior: a cross-sectional study of female Japanese undergraduate students.

PubMed

Yasunaga, Akitomo; Kawano, Yukari; Kamahori, Yumiko; Noguchi, Kyoko

2014-01-01

The purpose of the current study was to examine the association between the level of exercise behavior and individual and environmental factors related to exercise behavior among female Japanese undergraduate students. The participants were 2482 female Japanese undergraduate students. Participants' level of exercise behavior was measured by the stage of change to exercise in the transtheoretical model. Individual and environmental factors related to exercise behavior were assessed using body mass index, self-efficacy, social support, perceived positive and negative aspects of exercise, perceived neighborhood environment, attitude toward physical education lessons in childhood and puberty, and depression. Scores for self-efficacy, social support, positive aspects of exercise, and perceived neighborhood environment were significantly higher among women who were more active compared with those who were inactive. On the other hand, scores for negative aspects of exercise and depression were greater among inactive women compared with those who were insufficiently active and/or active. In addition, past attitude toward exercise in primary school, junior high school, and high school was associated with current level of exercise behavior. This cross-sectional study confirmed that psychosocial and environmental factors were closely associated with level of exercise behavior among female Japanese undergraduate students.

Students' Motivation toward Laboratory Work in Physiology Teaching

ERIC Educational Resources Information Center

Dohn, Niels Bonderup; Fago, Angela; Overgaard, Johannes; Madsen, Peter Teglberg; Malte, Hans

2016-01-01

The laboratory has been given a central role in physiology education, and teachers report that it is motivating for students to undertake experimental work on live animals or measuring physiological responses on the students themselves. Since motivation is a critical variable for academic learning and achievement, then we must concern ourselves…
Inquiry-Based Laboratory Activities in Electrochemistry: High School Students' Achievements and Attitudes

ERIC Educational Resources Information Center

Sesen, Burcin Acar; Tarhan, Leman

2013-01-01

This study aimed to investigate the effects of inquiry-based laboratory activities on high school students' understanding of electrochemistry and attitudes towards chemistry and laboratory work. The participants were 62 high school students (average age 17 years) in an urban public high school in Turkey. Students were assigned to experimental (N =…
Just-in-Time Teaching Exercises to Engage Students in an Introductory-Level Dinosaur Course

ERIC Educational Resources Information Center

Guertin, Laura A.; Zappe, Sarah E.; Kim, Heeyoung

2007-01-01

The Just-in-Time Teaching (JiTT) technique allows students to be engaged in course material outside of the classroom by answering web-based questions. The responses are summarized and presented to students in class with a follow-up active learning exercise. College students enrolled in an introductory-level general education geoscience course were…
[Effects of the body fat mass and blood sugar and plasma resistin to slim exercise prescription for overweight and obesity students].

PubMed

Bai, Youping; Zhang, Jing; Jiang, Shuangshuang; Sun, Jun; Zheng, Chenfei; Wang, Ke; Qian, Jingjing; Nie, Liuwang

2013-07-01

To explore the influences of slim exercise prescription on body fat mass, blood sugar and plasma resistin for overweight and obesity students. Subjects were 9 males and 13 females for simple overweight and obesity students of freshman and junior. The function capacity (FC) were defined after examine of body shape, physical function and exercise capacity. The slim goals and exercise projects were determined according to different objects. The exercise intensity was 60%-70% of FC and 13-15 levels of RPE. Exercise with each time was 60 min, exercise frequency was 5 times perweek, energy metabolism was 500-600 kcal at a time. The relative indexes were detected after 8 weeks. Implementing programmes of slim exercise prescription for 8 weeks, before and after the experiment in the males and females group. The weight, BMI, percentage of body fat (FAT%), waist and hip circumference ratio (WHR), body surface area (BS), fat indexes, the density of body for overweight and obesity the male and female students were significantly decreased (P < 0.01). Body fat mass (FM) and blood sugar were significantly decreased (P < 0.01). Plasma resistin of the male students were significant different (P < 0.01), but the female students were significant different (P < 0.05). Analysis of Bivariate Correlation was Pearson Correlation, plasma resistin and BMI, WHR the male students had correlation, but the female had no correlation. The exercise prescription was safe and sure, and could improve weight, BMI, FAT%, FM, WHR, BS, fat indexes, the density of body, blood sugar, plasma resistin in obesity without the diet control.
Use of Feedback-Oriented Online Exercises to Help Physiology Students Construct Well-Organized Answers to Short-Answer Questions

PubMed Central

Carnegie, Jacqueline

2015-01-01

Postsecondary education often requires students to use higher-order cognitive skills (HOCS) such as analysis, evaluation, and creation as they assess situations and apply what they have learned during lecture to the formulation of solutions. Summative assessment of these abilities is often accomplished using short-answer questions (SAQs). Quandary was used to create feedback-oriented interactive online exercises to help students strengthen certain HOCS as they actively constructed answers to questions concerning the regulation of 1) metabolic rate, 2) blood sugar, 3) erythropoiesis, and 4) stroke volume. Each exercise began with a SAQ presenting an endocrine dysfunction or a physiological challenge; students were prompted to answer between six and eight multiple-choice questions while building their answer to the SAQ. Student outcomes on the SAQ sections of summative exams were compared before and after the introduction of the online tool and also between subgroups of students within the posttool-introduction population who demonstrated different levels of participation in the online exercises. While overall SAQ outcomes were not different before and after the introduction of the online exercises, once the SAQ tool had become available, those students who chose to use it had improved SAQ outcomes compared with those who did not. PMID:26113627
Laboratory Barriers in Science, Engineering, and Mathematics for Students with Disabilities.

ERIC Educational Resources Information Center

Heidari, Farzin

This report addresses the barriers college students with disabilities face in the laboratory setting. In engineering, mathematics, and science education most courses require laboratory work which may pose challenges to those with disabilities. Instructors should be aware of the individual needs of students with disabilities and make necessary…
Implementing "Marketing Me": A Simulation Enhanced Variant for a Student Self-Marketing Exercise

ERIC Educational Resources Information Center

Flostrand, Andrew; Ho, Jason Y. C.; Krider, Robert E.

2016-01-01

The use of student self-branding exercises in introductory marketing courses for undergraduate business programs has been growing in popularity due to a number of advantages for students. This article introduces implementation of the "Marketing Me" variant developed and used since 2013 by the authors, wherein alumni are brought in to…
Exercise self-identity: interactions with social comparison and exercise behaviour.

PubMed

Verkooijen, Kirsten T; de Bruijn, Gert-Jan

2013-01-01

Possible interactions among exercise self-identity, social comparison and exercise behaviour were explored in a sample of 417 undergraduate students (mean age = 21.5, SD = 3.0; 73% female). Two models were examined using self-report data; (1) a mediation model which proposed an association between social comparison and exercise behaviour mediated by exercise self-identity and (2) a moderation model proposing an association between exercise behaviour and self-identity moderated by social comparison. Results of the mediation analyses revealed partial mediation of the social comparison--exercise behaviour relationship by self-identity in females. Results of the moderation analyses revealed in males a significant interaction of social comparison with exercise behaviour in the prediction of self-identity - the positive association between exercise behaviour and exercise self-identity showed only significant among male students who believed to exercise equally much or less than peers. Possible explanations and implications for exercise promotion are discussed.
Peer Assessment of Student-Produced Mechanics Lab Report Videos

ERIC Educational Resources Information Center

Douglas, Scott S.; Aiken, John M.; Lin, Shih-Yin; Greco, Edwin F.; Alicea-Muñoz, Emily; Schatz, Michael F.

2017-01-01

We examine changes in students' rating behavior during a semester-long sequence of peer evaluation laboratory exercises in an introductory mechanics course. We perform a quantitative analysis of the ratings given by students to peers' physics lab reports, and conduct interviews with students. We find that peers persistently assign higher ratings…
After Action Report: Idaho National Laboratory Annual Exercise June 10, 2015

DOE Office of Scientific and Technical Information (OSTI.GOV)

Barnes, Vernon Scott

On June 10, 2015, Idaho National Laboratory (INL), in coordination with the State of Idaho, local jurisdictions, Department of Energy Idaho Operations Office (DOE-ID), and DOE Headquarters (DOE HQ), conducted the annual emergency exercise to demonstrate the ability to implement the requirements of DOE O 151.1C, “Comprehensive Emergency Management System.” The INL contractor, Battelle Energy Alliance, LLC (BEA), in coordination with other INL contractors, conducted operations and demonstrated appropriate response measures to mitigate an event and protect the health and safety of personnel, the environment, and property. Offsite response organizations participated to demonstrate appropriate response measures.
How Should Students Learn in the School Science Laboratory? The Benefits of Cooperative Learning

NASA Astrophysics Data System (ADS)

Raviv, Ayala; Cohen, Sarit; Aflalo, Ester

2017-07-01

Despite the inherent potential of cooperative learning, there has been very little research into its effectiveness in middle school laboratory classes. This study focuses on an empirical comparison between cooperative learning and individual learning in the school science laboratory, evaluating the quality of learning and the students' attitudes. The research included 67 seventh-grade students who undertook four laboratory experiments on the subject of "volume measuring skills." Each student engaged both in individual and cooperative learning in the laboratory, and the students wrote individual or group reports, accordingly. A total of 133 experiment reports were evaluated, 108 of which also underwent textual analysis. The findings show that the group reports were superior, both in terms of understanding the concept of "volume" and in terms of acquiring skills for measuring volume. The students' attitudes results were statistically significant and demonstrated that they preferred cooperative learning in the laboratory. These findings demonstrate that science teachers should be encouraged to implement cooperative learning in the laboratory. This will enable them to improve the quality and efficiency of laboratory learning while using a smaller number of experimental kits. Saving these expenditures, together with the possibility to teach a larger number of students simultaneously in the laboratory, will enable greater exposure to learning in the school science laboratory.
Using HeLa cell stress response to introduce first year students to the scientific method, laboratory techniques, primary literature, and scientific writing.

PubMed

Resendes, Karen K

2015-01-01

Incorporating scientific literacy into inquiry driven research is one of the most effective mechanisms for developing an undergraduate student's strength in writing. Additionally, discovery-based laboratories help develop students who approach science as critical thinkers. Thus, a three-week laboratory module for an introductory cell and molecular biology course that couples inquiry-based experimental design with extensive scientific writing was designed at Westminster College to expose first year students to these concepts early in their undergraduate career. In the module students used scientific literature to design and then implement an experiment on the effect of cellular stress on protein expression in HeLa cells. In parallel the students developed a research paper in the style of the undergraduate journal BIOS to report their results. HeLa cells were used to integrate the research experience with the Westminster College "Next Chapter" first year program, in which the students explored the historical relevance of HeLa cells from a sociological perspective through reading The Immortal Life of Henrietta Lacks by Rebecca Skloot. In this report I detail the design, delivery, student learning outcomes, and assessment of this module, and while this exercise was designed for an introductory course at a small primarily undergraduate institution, suggestions for modifications at larger universities or for upper division courses are included. Finally, based on student outcomes suggestions are provided for improving the module to enhance the link between teaching students skills in experimental design and execution with developing student skills in information literacy and writing. © 2015 The International Union of Biochemistry and Molecular Biology.
Characterizing Mystery Cell Lines: Student-driven Research Projects in an Undergraduate Neuroscience Laboratory Course.

PubMed

Lemons, Michele L

2012-01-01

Inquiry-based projects promote discovery and retention of key concepts, increase student engagement, and stimulate interest in research. Described here are a series of lab exercises within an undergraduate upper level neuroscience course that train students to design, execute and analyze their own hypothesis-driven research project. Prior to developing their own projects, students learn several research techniques including aseptic cell culture, cell line maintenance, immunocytochemistry and fluorescent microscopy. Working in groups, students choose how to use these techniques to characterize and identify a "mystery" cell line. Each lab group is given a unique cell line with either a neural, astrocyte, or Schwann cell origin. Working together, students plan and execute experiments to determine the cellular origin and other unique characteristics of their mystery cell line. Students generate testable hypotheses, design interpretable experiments, generate and analyze data, and report their findings in both oral and written formats. Students receive instructor and peer feedback throughout the entire project. In summary, these labs train students the process of scientific research. This series of lab exercises received very strong positive feedback from the students. Reflections on student feedback and plans for future improvements are discussed.
Characterizing Mystery Cell Lines: Student-driven Research Projects in an Undergraduate Neuroscience Laboratory Course

PubMed Central

Lemons, Michele L.

2012-01-01

Inquiry-based projects promote discovery and retention of key concepts, increase student engagement, and stimulate interest in research. Described here are a series of lab exercises within an undergraduate upper level neuroscience course that train students to design, execute and analyze their own hypothesis-driven research project. Prior to developing their own projects, students learn several research techniques including aseptic cell culture, cell line maintenance, immunocytochemistry and fluorescent microscopy. Working in groups, students choose how to use these techniques to characterize and identify a “mystery” cell line. Each lab group is given a unique cell line with either a neural, astrocyte, or Schwann cell origin. Working together, students plan and execute experiments to determine the cellular origin and other unique characteristics of their mystery cell line. Students generate testable hypotheses, design interpretable experiments, generate and analyze data, and report their findings in both oral and written formats. Students receive instructor and peer feedback throughout the entire project. In summary, these labs train students the process of scientific research. This series of lab exercises received very strong positive feedback from the students. Reflections on student feedback and plans for future improvements are discussed. PMID:23504583
Relationships between negative affect and academic achievement among secondary school students: the mediating effects of habituated exercise.

PubMed

Hashim, Hairul A; Freddy, Golok; Rosmatunisah, Ali

2012-09-01

The current study was undertaken to examine the associations between self-determination, exercise habit, anxiety, depression, stress, and academic achievement among adolescents aged 13 and 14 years in eastern Malaysia. The sample consisted of 750 secondary school students (mean age = 13.4 years, SD = 0.49). Participants completed self-report measures of exercise behavioral regulation, negative affect, and exercise habit strength. Midyear exam results were used as an indicator of academic performance. Structural equation modeling was used to analyze the data. The results of structural equation modeling revealed a close model fit for the hypothesized model, which indicates that higher levels of self-determination were positively associated with habituated exercise behavior. In turn, exercise habit strength fostered academic achievement and buffered the debilitative effect of stress, depression, and anxiety on student academic performance. The analysis of model invariance revealed a nonsignificant difference between male and female subjects. The findings support the notion that habituated exercise fosters academic performance. In addition, we found that habituated exercise buffers the combined effects of stress, anxiety and depression on academic performance. The finding also supports the roles of self-determination in promoting exercise habituation.
Building the body: active learning laboratories that emphasize practical aspects of anatomy and integration with radiology.

PubMed

Zumwalt, Ann C; Lufler, Rebecca S; Monteiro, Joseph; Shaffer, Kitt

2010-01-01

Active learning exercises were developed to allow advanced medical students to revisit and review anatomy in a clinically meaningful context. In our curriculum, students learn anatomy two to three years before they participate in the radiology clerkship. These educational exercises are designed to review anatomy content while highlighting its relevance to the study of radiology. Laboratory exercises were developed using inexpensive materials in the form of hands-on stations designed for use by students working together in small groups. Station exercises include model building, exploring relevant radiological imaging, and practicing clinical techniques. Students are encouraged to move from abstract conceptualization of the anatomy using models to applying knowledge to living tissues by using a portable ultrasound to explore superficial anatomy on each other. Stations are designed to integrate knowledge and reemphasize concepts in different contexts, so that upon completion students have a reinforced understanding of the three-dimensional anatomy of the region in question, the appearance of the anatomy on radiological images, and an appreciation of the relevance of the anatomy to radiological procedures. (c) 2010 American Association of Anatomists.
Implementing Inclusive Design for Learning in an introductory geology laboratory

NASA Astrophysics Data System (ADS)

Robert, G.; Merriman, J. D.; Ceylan, G. M.

2013-12-01

As an expansion of universal design for learning, IDL provides a framework for opening up and adapting classroom interaction systems, minimizing barriers through promoting perception, engagement, expression, and accommodation for diverse learners. We implemented an introductory-level laboratory for communicating the concept of magma viscosity using the guidelines and principles of IDL. We developed the lab as a mini-implementation project for an IDL course offered by the University of Missouri (MU) Graduate School. The laboratory was subsequently taught during the summer session of Principles of Geology in our Department of Geological Sciences. Traditional geology laboratories rely heavily on visual aids, either physical (rocks and minerals) or representative (idealized cartoons of processes, videos), with very few alternative representations and descriptions made available to the students. Our main focus for this new lab was to diversify the means of representation available to the students (and instructor) to make the lab as equitable and flexible as possible. We considered potential barriers to learning arising from the physical lab environment, from the means of representation, engagement and expression, and tried to minimize them upfront. We centred the laboratory on the link between volcano shape and viscosity as an applied way to convey that viscosity is the resistance to flow. The learning goal was to have the students observe that more viscous eruptives resulted in steeper-sided volcanoes through experimentation. Students built their own volcanoes by erupting lava (foods of various viscosities) onto the Earth's surface (a piece of sturdy cardboard with a hole for the 'vent') through a conduit (pastry bag). Such a hands on lab exercise allows students to gain a tactile and visual, i.e., physical representation of an abstract concept. This specific exercise was supported by other, more traditional, means of representation (e.g., lecture, videos, cartoons, 3D
Inquiry, Investigation, and Communication in the Student-Directed Laboratory.

ERIC Educational Resources Information Center

Janners, Martha Y.

1988-01-01

Describes how to organize a student-directed laboratory investigation which is based on amphibian metamorphosis, lasts for nearly a term, and involves extensive group effort. Explains the assignment, student response and opinion, formal paper, and instructor responsibilities. (RT)
Implementation of Artificial Intelligence Assessment in Engineering Laboratory Education

ERIC Educational Resources Information Center

Samarakou, Maria; Fylladitakis, Emmanouil D.; Prentakis, Pantelis; Athineos, Spyros

2014-01-01

In laboratory courses, the assessment of exercises and assignments typically is treated as a simple, quantifiable approach. This approach however rarely includes qualitative factors, especially if the grading is being automatically performed by the system, and provides little to no feedback for the students to reflect on their work. The role of…
Blackboard Electrophoresis: An Inexpensive Exercise on the Principles of DNA Restriction Analysis

ERIC Educational Resources Information Center

Costa, M. J.

2007-01-01

Undergraduates with little training on molecular biology may find the technical level of the typical introductory restriction laboratory too challenging and have problems with mastering the underlying concepts and processes. "Blackboard electrophoresis" is an active learning exercise, which focuses student attention on the sequences and principles…

Medical Laboratory Services. Student's Manual. Cluster Core for Health Occupations Education.

ERIC Educational Resources Information Center

Williams, Catherine

This student's manual on medical laboratory services is one of a series of self-contained, individualized materials for students enrolled in training within the allied health field. It includes competencies that are associated with the performance of skills common to several occupations in the medical laboratory. The material is intended for use…
Effects of a Mindful Breathing Exercise during Reading Fluency Intervention for Students with Attentional Difficulties

ERIC Educational Resources Information Center

Idler, Alyssa M.; Mercer, Sterett H.; Starosta, Lindsay; Bartfai, Jamie M.

2017-01-01

Students with attentional difficulties are at greater risk for reading difficulties. To address this concern, we examined the extent to which adding a mindful breathing exercise to individual reading fluency interventions would improve gains in reading fluency, student-reported attention, and student-reported stress. In a restricted alternating…
Guided inquiry lab exercises in development and oxygen consumption using zebrafish.

PubMed

Bagatto, Brian

2009-06-01

Zebrafish have become a model organism in many areas of research and are now being used with more frequency in the classroom to teach important biological concepts. The two guided inquiry exercises in this article are each aimed at a different level of instruction, but each can be modified to fit the needs of many high school or college-level courses. The "Zebrafish Development and Environment" exercise teaches high school students about zebrafish development by presenting a series of embryos at different ages. Without access to visual references, students are asked to rank developing zebrafish by age and explain their choices. The students also learn about the heart and circulatory system and the effects of temperature on physiological processes. The second exercise, "Oxygen Consumption," is a 2-week laboratory designed for introductory college biology majors and involves the concept of oxygen consumption as a predictor of metabolic rate. During the first week of lab, students are introduced to the concept and learn how to measure oxygen consumption in zebrafish. In the second week, they perform an instructor-approved experiment of their own design, analyze the results using statistics, and write a report.
Discovering and measuring a layered Earth: A foundational laboratory for developing students' understanding of Earth's interior structure

NASA Astrophysics Data System (ADS)

Hubenthal, M.; Braile, L. W.; Olds, S. E.; Taber, J.

2010-12-01

Geophysics research is continuously revealing new insights about Earth’s interior structure. Before students can grasp theses new complexities, they first must internalize the 1st order layered structure of Earth and comprehend how seismology contributes to the development of such models. Earth structure is of course covered in most introductory geoscience courses, though all too often instruction of this content is limited to didactic methods that make little effort to inspire or engage the minds of students. In the process, students are expected to blindly accept our understanding of the unseen and abstract. Thus, it is not surprising then that many students can draw a layered Earth diagram, yet not know that knowledge of Earth’s interior is based on information from earthquakes. Cognitive learning theory would suggest that what has been missing from instruction of Earth structure is a feasible method to present students with seismic evidence in a manner that allows students to become minds-on with the content; discovering or dispelling the presence of a layered Earth for themselves. Recent advances in serving seismic data to a non-seismologist audience have made the development of such laboratory investigations possible. In this exercise students use an inquiry approach to examine seismic evidence and determine that the Earth cannot have a homogeneous composition. Further they use the data to estimate the dimensions of Earth’s outer core. To reach these conclusions, students are divided into two teams, theoreticians and seismologists, to test the simplest hypothesis for Earth's internal structure; a homogeneous Earth. The theoreticians create a scale model of a homogeneous Earth and predict when seismic waves should arrive at various points on the model. Simultaneously, seismologists interpret a seismic record section from a recent earthquake noting when seismic waves arrive at various points around Earth. The two groups of students then compare the
Project Laboratory for First-Year Students

ERIC Educational Resources Information Center

Planinsic, Gorazd

2007-01-01

This paper reports the modification of an existing experimental subject into a project laboratory for first-year physics students studying in the first cycle of university level and at a higher professional level. The subject is aimed at developing important science-related competences and skills through concrete steps under circumstances that are…
Guaiacol peroxidase zymography for the undergraduate laboratory.

PubMed

Wilkesman, Jeff; Castro, Diana; Contreras, Lellys M; Kurz, Liliana

2014-01-01

This laboratory exercise presents a novel way to introduce undergraduate students to the specific detection of enzymatic activity by electrophoresis. First, students prepare a crude peroxidase extract and then analyze the homogenate via electrophoresis. Zymography, that is, a SDS-PAGE method to detect enzyme activity, is used to specifically detect peroxidase activity and furthermore, to analyze the total protein profile. After the assay, students may estimate the apparent molecular mass of the enzyme and discuss its structure. After the 4-h experiment, students gain knowledge concerning biological sample preparation, gel preparation, electrophoresis, and the importance of specific staining procedures for the detection of enzymatic activity. Copyright © 2014 The International Union of Biochemistry and Molecular Biology.
Full-participation of students with physical disabilities in science and engineering laboratories.

PubMed

Jeannis, Hervens; Joseph, James; Goldberg, Mary; Seelman, Katherine; Schmeler, Mark; Cooper, Rory A

2018-02-01

To conduct a literature review identifying barriers and facilitators students with physical disabilities (SwD-P) may encounter in science and engineering (S&E) laboratories. Publications were identified from 1991 to 2015 in ERIC, web of science via web of knowledge, CINAHL, SCOPUS, IEEEXplore, engineering village, business source complete and PubMed databases using search terms and synonyms for accommodations, advanced manufacturing, additive manufacturing, assistive technology (AT), barriers, engineering, facilitators, instructor, laboratory, STEM education, science, students with disabilities and technology. Twenty-two of the 233 publications that met the review's inclusion criteria were examined. Barriers and facilitators were grouped based on the international classification of functioning, disability and health framework (ICF). None of the studies directly found barriers or facilitators to SwD-P in science or engineering laboratories within postsecondary environments. The literature is not clear on the issues specifically related to SwD-P. Given these findings, further research (e.g., surveys or interviews) should be conducted to identify more details to obtain more substantial information on the barriers that may prevent SwD-P from fully participating in S&E instructional laboratories. Implications for Rehabilitation Students with disabilities remain underrepresented going into STEM careers. A need exist to help uncover barriers students with disabilities encounter in STEM laboratory. Environments. Accommodations and strategies that facilitate participation in STEM laboratory environments are promising for students with disabilities.
Perceived emotional aptitude of clinical laboratory sciences students compared to students in other healthcare profession majors.

PubMed

Adams, Austin; McCabe, Kristin; Zundel, Cassandra; Price, Travis; Dahl, Corey

2011-01-01

Emotional aptitude can be defined as the ability to recognize and manage one's own emotions and interpret the emotions of others. It has been speculated that Clinical Laboratory Sciences students may lack the emotional skills to most effectively interact with patients and other healthcare professionals, therefore a logical hypothesis would be that they would evaluate their own emotional intelligence lower than students from other healthcare majors. While this has been a topic of discussion in healthcare, a lack of research has been conducted to validate this assumption. This study assesses the perceived emotional aptitude of Clinical Laboratory Sciences students compared to students of other healthcare majors in the Dumke College of Health Professions at Weber State University. The perceived emotional aptitude of the healthcare students was determined by completion of a self-evaluation questionnaire that included questions about one's emotions, their understanding of others' emotions, and how they manage conflict. A total of 401 questionnaires were completed, compiled, and analyzed. Although minor differences were seen in the responses, statistical analysis found these differences to be insignificant. The perceived emotional aptitude of Clinical Laboratory Sciences students was insignificantly different than that of students of other healthcare majors at the Dumke College of Health Professions.
Using Mobile-Assisted Exercises to Support Students' Vocabulary Skill Development

ERIC Educational Resources Information Center

Suwantarathip, Ornprapat; Orawiwatnakul, Wiwat

2015-01-01

The use of mobile phones for learning has become well-known and is widely adopted in many language classes. The use of SMS for transmitting short messages is a fast way of helping students to learn vocabulary. To address this issue, this study was conducted to examine the effects of mobile-assisted vocabulary exercises on vocabulary acquisition of…
Development of performance assessment instrument based contextual learning for measuring students laboratory skills

NASA Astrophysics Data System (ADS)

Susilaningsih, E.; Khotimah, K.; Nurhayati, S.

2018-04-01

The assessment of laboratory skill in general hasn’t specific guideline in assessment, while the individual assessment of students during a performance and skill in performing laboratory is still not been observed and measured properly. Alternative assessment that can be used to measure student laboratory skill is use performance assessment. The purpose of this study was to determine whether the performance assessment instrument that the result of research can be used to assess basic skills student laboratory. This research was conducted by the Research and Development. The result of the data analysis performance assessment instruments developed feasible to implement and validation result 62.5 with very good categories for observation sheets laboratory skills and all of the components with the very good category. The procedure is the preliminary stages of research and development stages. Preliminary stages are divided in two, namely the field studies and literature studies. The development stages are divided into several parts, namely 1) development of the type instrument, 2) validation by an expert, 3) a limited scale trial, 4) large-scale trials and 5) implementation of the product. The instrument included in the category of effective because 26 from 29 students have very high laboratory skill and high laboratory skill. The research of performance assessment instrument is standard and can be used to assess basic skill student laboratory.
Laboratory Class Project: Using a Cichlid Fish Display Tank to Teach Students about Complex Behavioral Systems.

PubMed

Nolan, Brian C

2010-01-01

Laboratory activities serve several important functions in undergraduate science education. For neuroscience majors, an important and sometimes underemphasized tool is the use of behavioral observations to help inform us about the consequences of changes that are occurring on a neuronal level. To help address this concern, the following laboratory exercise is presented. The current project tested the prediction that the most dominant fish in a tank of cichlids will have gained the most benefits of its position resulting in the greatest growth and hence, become the largest fish. More specifically: (1) is there evidence that a social hierarchy exists among the fish in our tank based on the number of aggressive acts among the four largest fish; (2) if so, does the apparent rank correspond to the size of the fish as predicted by previous studies? Focal sampling and behavior sampling of aggressive acts between fish were utilized in the data collection. Collectively, the data suggest a social dominance hierarchy may be in place with the following rank order from highest to lowest: Fish A > Fish B > Fish D > Fish C. While the largest (Fish A) seems to be at the top, Fish C ended up being ranked lower than Fish D despite the fact that Fish C is larger. Overall, the project was considered a success by the instructor and students. The students offered several suggestions that could improve future versions of this type of project, in particular concerning the process of constructing a poster about the project. The implications of the data and student learning outcomes are discussed.
The Binary System Laboratory Activities Based on Students Mental Model

NASA Astrophysics Data System (ADS)

Albaiti, A.; Liliasari, S.; Sumarna, O.; Martoprawiro, M. A.

2017-09-01

Generic science skills (GSS) are required to develop student conception in learning binary system. The aim of this research was to know the improvement of students GSS through the binary system labotoratory activities based on their mental model using hypothetical-deductive learning cycle. It was a mixed methods embedded experimental model research design. This research involved 15 students of a university in Papua, Indonesia. Essay test of 7 items was used to analyze the improvement of students GSS. Each items was designed to interconnect macroscopic, sub-microscopic and symbolic levels. Students worksheet was used to explore students mental model during investigation in laboratory. The increase of students GSS could be seen in their N-Gain of each GSS indicators. The results were then analyzed descriptively. Students mental model and GSS have been improved from this study. They were interconnect macroscopic and symbolic levels to explain binary systems phenomena. Furthermore, they reconstructed their mental model with interconnecting the three levels of representation in Physical Chemistry. It necessary to integrate the Physical Chemistry Laboratory into a Physical Chemistry course for effectiveness and efficiency.
Assessment of Numeracy in Sports and Exercise Science Students at an Australian University

ERIC Educational Resources Information Center

Green, Simon; McGlynn, Susan; Stuart, Deidre; Fahey, Paul; Pettigrew, Jim; Clothier, Peter

2018-01-01

The effect of high school study of mathematics on numeracy performance of sports and exercise science (SES) students is not clear. To investigate this further, we tested the numeracy skills of 401 students enrolled in a Bachelor of Health Sciences degree in SES using a multiple-choice survey consisting of four background questions and 39 numeracy…
Wiki Laboratory Notebooks: Supporting Student Learning in Collaborative Inquiry-Based Laboratory Experiments

ERIC Educational Resources Information Center

Lawrie, Gwendolyn Angela; Grøndahl, Lisbeth; Boman, Simon; Andrews, Trish

2016-01-01

Recent examples of high-impact teaching practices in the undergraduate chemistry laboratory that include course-based undergraduate research experiences and inquiry-based experiments require new approaches to assessing individual student learning outcomes. Instructors require tools and strategies that can provide them with insight into individual…
The Johns Hopkins Hunterian Laboratory Philosophy: Mentoring Students in a Scientific Neurosurgical Research Laboratory.

PubMed

Tyler, Betty M; Liu, Ann; Sankey, Eric W; Mangraviti, Antonella; Barone, Michael A; Brem, Henry

2016-06-01

After over 50 years of scientific contribution under the leadership of Harvey Cushing and later Walter Dandy, the Johns Hopkins Hunterian Laboratory entered a period of dormancy between the 1960s and early 1980s. In 1984, Henry Brem reinstituted the Hunterian Neurosurgical Laboratory, with a new focus on localized delivery of therapies for brain tumors, leading to several discoveries such as new antiangiogenic agents and Gliadel chemotherapy wafers for the treatment of malignant gliomas. Since that time, it has been the training ground for 310 trainees who have dedicated their time to scientific exploration in the lab, resulting in numerous discoveries in the area of neurosurgical research. The Hunterian Neurosurgical Laboratory has been a unique example of successful mentoring in a translational research environment. The laboratory's philosophy emphasizes mentorship, independence, self-directed learning, creativity, and people-centered collaboration, while maintaining productivity with a focus on improving clinical outcomes. This focus has been served by the diverse backgrounds of its trainees, both in regard to educational status as well as culturally. Through this philosophy and strong legacy of scientific contribution, the Hunterian Laboratory has maintained a positive and productive research environment that supports highly motivated students and trainees. In this article, the authors discuss the laboratory's training philosophy, linked to the principles of adult learning (andragogy), as well as the successes and the limitations of including a wide educational range of students in a neurosurgical translational laboratory and the phenomenon of combining clinical expertise with rigorous scientific training.
Decoding Student Satisfaction: How to Manage and Improve the Laboratory Experience

ERIC Educational Resources Information Center

Nikolic, Sasha; Ritz, Christian; Vial, Peter James; Ros, Montserrat; Stirling, David

2015-01-01

The laboratory plays an important role in teaching engineering skills. An Electrical Engineering department at an Australian University implemented a reform to monitor and improve student satisfaction with the teaching laboratories. A Laboratory Manager was employed to oversee the quality of 27 courses containing instructional laboratories.…
The effect of active core exercise on fitness and foot pressure in Taekwondo club students.

PubMed

Yoon, Seong-Deok; Sung, Dong-Hun; Park, Gi Duck

2015-02-01

[Purpose] The effects of core training using slings and Togus on the improvement of posture control in Taekwondo club students, that is, balance ability, were investigated. To that end, changes in the Taekwondo players' balance ability resulting from active core training for eight weeks were examined through fitness and foot pressure. [Subjects] The present study was conducted with 13 male Taekwondo players of K University in Deagu, South Korea. Once the experiment process was explained, consent was obtained from those who participated voluntarily. [Methods] Air cushions (Germany), Jumpers (Germany), and Aero-Steps (Germany) were used as lumbar stabilization exercise tools. As a method of training proprioceptive senses by stimulating somatesthesia in standing postures, the subjects performed balance squats, supine pelvic lifts, and push-up plus exercise using slings while standing on an Aero-Step and performed hip extension parallel squats (Wall Gym Ball), and standing press-ups on a Togu using their own weight. The subjects performed four sets of these isometric exercises while maintaining an exercise time per set at 30 seconds in each session and repeated this session three times per week. [Result] Left grip strength significantly increased and number of sit-ups, which indicates muscle endurance, also significantly increased after the eight weeks exercise compared with before the exercise. The values measured during the sit and reach test, which indicate flexibility, also significantly increase after the eight weeks of exercise compared with before the exercise but only in the left foot. [Conclusion] The result of present study suggest that active core exercise using Slings and Togus can be applied as a very effective exercise program for enhancing balance, which is an important physical factor for Taekwondo club students.
Relationship between Vigorous Exercise Frequency and Substance Use among First-Year Drinking College Students

ERIC Educational Resources Information Center

Moore, Michele Johnson; Werch, Chudley

2008-01-01

Objective: The authors explored the relationship between self-reported vigorous exercise frequency and alcohol, tobacco, and other drug (ATOD) use behaviors among first-year college students who self-identified as drinkers. Participants: The authors recruited 391 freshman college students in Northeast Florida to participate in an alcohol abuse…
Laboratory Control System's Effects on Student Achievement and Attitudes

ERIC Educational Resources Information Center

Cicek, Fatma Gozalan; Taspinar, Mehmet

2016-01-01

Problem Statement: The current study investigates whether the learning environment designed based on the laboratory control system affects the academic achievement, the attitude toward the learning-teaching process and the retention of the students in computer education. Purpose of Study: The study aims to identify the laboratory control system…
Impact of a Simulation Exercise on Pharmacy Student Attitude toward Poverty.

PubMed

Clarke, Cheryl; Sedlacek, Renee K; Watson, Susan B

2016-03-25

Objective. To evaluate the impact of a simulation on pharmacy student attitudes toward poverty using the Attitude toward Poverty (ATP) Short Form scale. Methods. Second-year pharmacy students participated in the 3-hour Missouri Association for Community Action Poverty Simulation. Students completed a survey of the ATP Short Form scale prior to and following participation in the simulation. Results. Significant improvements in attitude were noted in 15 of 21 ATP Short Form items. Improvements in the stigma and structural domains were significant while improvement in the personal deficiency domain was not significant. Conclusions. This poverty simulation exercise positively altered pharmacy student attitudes toward poverty. When combined with didactic and experiential curriculum, this simulation may enhance student achievement of the 2013 Center for the Advancement of Pharmacy Education (CAPE) outcome subdomain of cultural sensitivity.

Running to well-being: A comparative study on the impact of exercise on the physical and mental health of law and psychology students.

PubMed

Skead, Natalie K; Rogers, Shane L

Research indicates that, in comparison to other university students, law students are at greater risk of experiencing high levels of psychological distress. There is also a large body of literature supporting a general negative association between exercise and stress, anxiety and depression. However, we are not aware of any studies exploring the impact of exercise on the mental health of law students specifically. This article reports evidence of a negative association between exercise and psychological distress in 206 law and psychology students. Compared to psychology students, the law students not only reported greater psychological distress, but, in addition, there was a stronger association between their levels of distress and their levels of exercise. Based on the results of this study, we suggest a simple yet effective way law schools might support the mental health of their students. Copyright © 2016 Elsevier Ltd. All rights reserved.
A Simple Exercise Reveals the Way Students Think about Scientific Modeling

ERIC Educational Resources Information Center

Ruebush, Laura; Sulikowski, Michelle; North, Simon

2009-01-01

Scientific modeling is an integral part of contemporary science, yet many students have little understanding of how models are developed, validated, and used to predict and explain phenomena. A simple modeling exercise led to significant gains in understanding key attributes of scientific modeling while revealing some stubborn misconceptions.…
OER Approach for Specific Student Groups in Hardware-Based Courses

ERIC Educational Resources Information Center

Ackovska, Nevena; Ristov, Sasko

2014-01-01

Hardware-based courses in computer science studies require much effort from both students and teachers. The most important part of students' learning is attending in person and actively working on laboratory exercises on hardware equipment. This paper deals with a specific group of students, those who are marginalized by not being able to…
Safety Teams: An Approach to Engage Students in Laboratory Safety

ERIC Educational Resources Information Center

Alaimo, Peter J.; Langenhan, Joseph M.; Tanner, Martha J.; Ferrenberg, Scott M.

2010-01-01

We developed and implemented a yearlong safety program into our organic chemistry lab courses that aims to enhance student attitudes toward safety and to ensure students learn to recognize, demonstrate, and assess safe laboratory practices. This active, collaborative program involves the use of student "safety teams" and includes…
Video Teleconferencing in the Compounding Laboratory Component of a Dual-Campus Doctor of Pharmacy Program

PubMed Central

Shrewsbury, Robert P.

2011-01-01

Objectives. To design, implement, and assess the effectiveness of using a live video teleconferencing system to connect the main campus and a satellite campus during laboratory compounding exercises in a doctor of pharmacy (PharmD) program. Design. A new laboratory facility with identical equipment and supplies to the main campus was built at the satellite campus and teleconferencing equipment was set up. Students on both campuses prepared 20 compounded formulations over a 5-course pharmaceutical care laboratory sequence. Live video teleconferencing was used for students to ask questions and for the lead faculty instructor to observe the students’ technique. Faculty and staff members and teaching assistants facilitated the laboratory sessions on both campuses. Assessment. The performance of students on assayed products at the main campus was compared with that of students at the satellite campus to ensure program integrity with the compounding laboratory component. The use of video teleconferencing for teaching compounding was successful and no difference in overall student pass rates was seen. The few observed differences in student performance between the 2 campuses were believed to be a result of variations in instructor communication with distant students. Conclusion. Video teleconferencing can be used successfully to deliver curriculum in laboratory compounding to pharmacy students. PMID:22171109
The Bottom Line: An Exercise to Help Students Understand How Social Inequality Is Actively Constructed

ERIC Educational Resources Information Center

Abelev, Melissa; Vincent, M. Bess; Haney, Timothy J.

2008-01-01

One of the important misconceptions in the American view of poverty is that people are poor because they do not work. This article presents an exercise, the "bottom line," which helps dispel students' misconceptions about the working poor. Through extensive primary-data collection and assembling a budget for low-skilled workers, the exercise: (1)…
Uncertainty Exposed: A Field Lab Exercise Where GIS Meets the Real World

ERIC Educational Resources Information Center

Prisley, Stephen P.; Luebbering, Candice

2011-01-01

Students in natural resources programs commonly take courses in geospatial technologies. An awareness of the uncertainty of spatial data and algorithms can be an important outcome of such courses. This article describes a laboratory exercise in a graduate geographic information system (GIS) class that involves collection of data for the assessment…
Lab Exercises for Kinesiology.

ERIC Educational Resources Information Center

Mills, Brett D.; And Others

This monograph presents descriptions of various exercises and athletic activities with a kinesiological and biomechanical analysis of the muscle systems involved. It is intended as examples of laboratory activities and projects in a college course in kinesiology. A listing of the required laboratory exercises precedes the examples. Specific…
[The relationship between personality, attitudes and alcohol and tobacco consumption and exercise in students].

PubMed

Comín Bertrán, E; Torrubia Beltri, R; Mor Sancho, J

1998-01-01

To study the relation between tobacco and alcohol use and exercise, attitudes toward these habits, and the Sensation-Seeking personality trait in students. A transversal descriptive study was carried out in the city of Lérida in 1990 in a sample of 430 sixth-grade students and 383 eighth-grade students. The sample was obtained by random sampling of aggregates and stratified by the titularity of the school. An analysis was made of the tobacco and the alcohol use, the levels of physical exercise and the attitudes, among other variables, using the FRISC questionnaire. In eighth grade students, the Sensation-Seeking personality questionnaire was added. The overall scores for Emotion Seeking (EMS), Disinhibition (DIS), Sincerity, and the overall score for Sensation Seeking (SS) were higher for males. The students most active in sports had more favorable attitudes toward exercise and higher EMS and DIS scores. Smokers and drinkers had favorable attitudes toward these habits, opposed their prohibition, and had higher scores for all the subscales and the overall SS. There was a correlation between favorable attitudes toward tobacco (-0.38) and alcohol (-0.51), and the DIS score. Attitudes toward alcohol also correlated with the overall SS score. There was a close relation between habits, attitudes, and personality. Although the approach for modifying unhealthy habits should be proposed from a multifactorial perspective, the SS questionnaire could be a useful element for detecting persons who feel the need to seek new sensations and refocusing this tendency on healthier habits.
Enhanced Learning of Biotechnology Students by an Inquiry-Based Cellulase Laboratory

ERIC Educational Resources Information Center

Ketpichainarong, Watcharee; Panijpan, Bhinyo; Ruenwongsa, Pintip

2010-01-01

This study explored the effectiveness of an inquiry-based cellulase laboratory unit in promoting inquiry in undergraduate students in biotechnology. The following tools were used to assess the students' achievements and attitude: conceptual understanding test, concept mapping, students' documents, CLES questionnaire, students' self reflection, and…
Characterization of the activity and stability of amylase from saliva and detergent: laboratory practicals for studying the activity and stability of amylase from saliva and various commercial detergents.

PubMed

Valls, Cristina; Rojas, Cristina; Pujadas, Gerard; Garcia-Vallve, Santi; Mulero, Miquel

2012-07-01

This article presents two integrated laboratory exercises intended to show students the role of α-amylases (AAMYs) in saliva and detergents. These laboratory practicals are based on the determination of the enzymatic activity of amylase from saliva and different detergents using the Phadebas test (quantitative) and the Lugol test (qualitative) under different conditions (e.g. variations in temperature and alkalinity). This work also proposes the study of enzyme stability in the presence of several surfactants and oxidizing agents using the same technical approach. The proposed laboratory exercises promote the understanding of the physiological function of this enzyme and the biotechnological applications of AAMYs in the detergent industry. The exercises also promote the understanding that the enzymatic stability and performance are dependent on the organism of origin, and if necessary, these properties could be modified by genetic engineering. In addition, this article reinforces the development of laboratory skills, problem-solving capabilities, and the ability to write a laboratory report. The exercises are proposed primarily as an undergraduate project for advanced students in the biochemical and biotechnological sciences. These laboratory practicals are complementary to the previously published BAMBED article (Biochemistry and Molecular Biology Education Vol. 39, No. 4, pp. 280-290, 2011) on detergent proteases. Copyright © 2012 Wiley Periodicals, Inc.
Use and Acceptance of Information and Communication Technology among Laboratory Science Students

ERIC Educational Resources Information Center

Barnes, Brenda C.

2013-01-01

Online and blended learning platforms are being promoted within laboratory science education under the assumption that students have the necessary skills to navigate online and blended learning environments. Yet little research has examined the use of information and communication technology (ICT) among the laboratory science student population.…
Students' Assessment of Interactive Distance Experimentation in Nuclear Reactor Physics Laboratory Education

ERIC Educational Resources Information Center

Malkawi, Salaheddin; Al-Araidah, Omar

2013-01-01

Laboratory experiments develop students' skills in dealing with laboratory instruments and physical processes with the objective of reinforcing the understanding of the investigated subject. In nuclear engineering, where research reactors play a vital role in the practical education of students, the high cost and long construction time of research…
The Quantitative Effect of Students Using Podcasts in a First Year Undergraduate Exercise Physiology Module

ERIC Educational Resources Information Center

Abt, Grant; Barry, Tim

2007-01-01

This study reports the quantitative effect of students using podcasts in a 1st year undergraduate exercise physiology module. From a cohort of 70 students, 50 volunteered and completed the study. Using a pre-post random allocation research design, students were allocated to either a podcast group (PG) or control group (CG) based on a 32-question…
A Vodcasted, Cross-Disciplinary, Behavioral Neuroscience Laboratory Exercise Investigating the Effects of Methamphetamine on Aggression

ERIC Educational Resources Information Center

Shanks, Ryan A.; Southard, E. Megan; Tarnowski, Laura; Bruster, Matthew; Wingate, Stacia W.; Dalman, Nancy; Lloyd, Steven A.

2011-01-01

This article describes a laboratory experience utilizing videos to engage students in hypothesis-driven experimentation in behavioral neuroscience. It provides students with an opportunity to investigate the effects of chronic methamphetamine exposure on aggression in adult mice using a resident-intruder paradigm. Instructors and students only…
Ion Exchange and Thin Layer Chromatographic Separation and Identification of Amino Acids in a Mixture: An Experiment for General Chemistry and Biotechnology Laboratories

ERIC Educational Resources Information Center

Brunauer, Linda S.; Caslavka, Katelyn E.; Van Groningen, Karinne

2014-01-01

A multiday laboratory exercise is described that is suitable for first-year undergraduate chemistry, biochemistry, or biotechnology students. Students gain experience in performing chromatographic separations of biomolecules, in both a column and thin layer chromatography (TLC) format. Students chromatographically separate amino acids (AA) in an…
A General Chemistry Laboratory Course Designed for Student Discussion

ERIC Educational Resources Information Center

Obenland, Carrie A.; Kincaid, Kristi; Hutchinson, John S.

2014-01-01

We report a study of the general chemistry laboratory course at one university over four years. We found that when taught as a traditional laboratory course, lab experiences do not encourage students to deepen their understanding of chemical concepts. Although the lab instructor emphasized that the lab experiences were designed to enhance…
Students' perceptions of academic dishonesty in the chemistry classroom laboratory

NASA Astrophysics Data System (ADS)

del Carlo, Dawn I.; Bodner, George M.

2004-01-01

Although the literature on both academic dishonesty and scientific misconduct is extensive, research on academic dishonesty has focused on quizzes, exams, and papers, with the virtual exclusion of the classroom laboratory. This study examined the distinctions undergraduate chemistry majors made between academic dishonesty in the classroom laboratory and scientific misconduct in the research laboratory. Across the spectrum of undergraduate chemistry courses, from the introductory course for first-semester chemistry majors to the capstone course in instrumental analysis, we noted that students believe the classroom lab is fundamentally different from a research or industrial lab. This difference is so significant that it carries over into students' perceptions of dishonesty in these two environments.
Relativistic jets: An astrophysical laboratory for the Doppler effect

NASA Astrophysics Data System (ADS)

Zakamska, Nadia L.

2018-05-01

Special Relativity is one of the most abstract courses in the standard curriculum for physics majors, and therefore practical applications or laboratory exercises are particularly valuable for providing real-world experiences with this subject. This course poses a challenge for lab development because relativistic effects manifest themselves only at speeds close to the speed of light. The laboratory described in this paper constitutes a low-cost, low-barrier exercise suitable for students whose only background is the standard mechanics-plus-electromagnetism sequence. The activity uses research-quality astronomical data on SS433—a fascinating Galactic X-ray binary consisting of a compact object (a neutron star or a black hole) and a normal star. A pair of moderately relativistic jets moving with v ˜ 0.3 c in opposite directions emanate from the vicinity of the compact object and are clearly detected in optical and radio observations. Following step-by-step instructions, students develop a full kinematic model of a complex real-world source, use the model to fit the observational data, obtain best-fit parameters, and understand the limitations of the model. The observations are in exquisite agreement with the Doppler effect equations of Special Relativity. The complete lab manual, the dataset and the solutions are available in online supplemental materials; this paper presents the scientific and pedagogical background for the exercise.
Fundamentals of microfluidics for high school students with no prior knowledge of fluid mechanics.

PubMed

Tandon, Vishal; Peck, Walter

2013-01-01

Three microfluidics-based laboratory exercises were developed and implemented in a high school science classroom setting. The first exercise demonstrated ways in which flows are characterized, including viscosity, turbulence, shear stress, reversibility, compressibility, and hydrodynamic resistance. Students characterized flows in poly(dimethylsiloxane) microfluidic devices in the other two exercises, where they observed the mixing characteristics of laminar flows, and conservation of volumetric flow rate for incompressible flows. In surveys, the students self-reported increased knowledge of microfluidics, and an improved attitude toward science and nanotechnology.

Use and Acceptance of Information and Communication Technology Among Laboratory Science Students

NASA Astrophysics Data System (ADS)

Barnes, Brenda C.

Online and blended learning platforms are being promoted within laboratory science education under the assumption that students have the necessary skills to navigate online and blended learning environments. Yet little research has examined the use of information and communication technology (ICT) among the laboratory science student population. The purpose of this correlational, survey research study was to explore factors that affect use and acceptance of ICT among laboratory science students through the theoretical lens of the unified theory of acceptance and use of technology (UTAUT) model. An electronically delivered survey drew upon current students and recent graduates (within 2 years) of accredited laboratory science training programs. During the 4 week data collection period, 168 responses were received. Results showed that the UTAUT model did not perform well within this study, explaining 25.2% of the variance in use behavior. A new model incorporating attitudes toward technology and computer anxiety as two of the top variables, a model significantly different from the original UTAUT model, was developed that explained 37.0% of the variance in use behavior. The significance of this study may affect curriculum design of laboratory science training programs wanting to incorporate more teaching techniques that use ICT-based educational delivery, and provide more options for potential students who may not currently have access to this type of training.
Isolation and Genetic Analysis of an Environmental Bacteriophage: A 10-Session Laboratory Series in Molecular Virology

ERIC Educational Resources Information Center

Williamson, Ryan P.; Barker, Brent T.; Drammeh, Hamidou; Scott, Jefferson; Lin, Joseph

2014-01-01

Bacterial viruses, otherwise known as bacteriophage (or phage), are some of the most abundant viruses found in the environment. They can be easily isolated from water or soil and are ideal for use in laboratory classrooms due to their ease of culture and inherent safety. Here, we describe a series of 10 laboratory exercises where students collect,…
The Effect of Jigsaw Technique on the Students' Laboratory Material Recognition and Usage Skills in General Physics Laboratory-I Course

ERIC Educational Resources Information Center

Aydin, Abdullah; Biyikli, Filiz

2017-01-01

This research aims to compare the effects of Jigsaw technique from the cooperative learning methods and traditional learning method on laboratory material recognition and usage skills of students in General Physics Lab-I Course. This study was conducted with 63 students who took general physics laboratory-I course in the department of science…
Contributions of psychological needs, self-compassion, leisure-time exercise, and achievement goals to academic engagement and exhaustion in Canadian medical students.

PubMed

Babenko, Oksana; Mosewich, Amber; Abraham, Joseph; Lai, Hollis

2018-01-01

To investigate the contributions of psychological needs (autonomy, competence, and relatedness) and coping strategies (self-compassion, leisure-time exercise, and achievement goals) to engagement and exhaustion in Canadian medical students. This was an observational study. Two hundred undergraduate medical students participated in the study: 60.4% were female, 95.4% were 20-29 years old, and 23.0% were in year 1, 30.0% in year 2, 21.0% in year 3, and 26.0% in year 4. Students completed an online survey with measures of engagement and exhaustion from the Oldenburg Burnout Inventory-student version; autonomy, competence, and relatedness from the Basic Psychological Needs Scale; self-compassion from the Self-Compassion Scale-short form; leisure-time exercise from the Godin Leisure-Time Exercise Questionnaire; and mastery approach, mastery avoidance, performance approach, and performance avoidance goals from the Achievement Goals Instrument. Descriptive and inferential analyses were performed. The need for competence was the strongest predictor of student engagement (β= 0.35, P= 0.000) and exhaustion (β= -0.33, P= 0.000). Students who endorsed mastery approach goals (β= 0.21, P= 0.005) and who were more self-compassionate (β= 0.13, P= 0.050) reported greater engagement with their medical studies. Students who were less self-compassionate (β= -0.32, P= 0.000), who exercised less (β= -0.12, P= 0.044), and who endorsed mastery avoidance goals (β= 0.22, P= 0.003) reported greater exhaustion from their studies. Students' gender (β= 0.18, P= 0.005) and year in medical school (β= -0.18, P= 0.004) were related to engagement, but not to exhaustion. Supporting students' need for competence and raising students' awareness of self-compassion, leisure-time exercise, and mastery approach goals may help protect students from burnout-related exhaustion and enhance their engagement with their medical school studies.
The effect of shape on drag: a physics exercise inspired by biology

NASA Astrophysics Data System (ADS)

Fingerut, Jonathan; Johnson, Nicholas; Mongeau, Eric; Habdas, Piotr

2017-07-01

As part of a biomechanics course aimed at upper-division biology and physics majors, but applicable to a range of student learning levels, this laboratory exercise provides an insight into the effect of shape on hydrodynamic performance, as well an introduction to computer aided design (CAD) and 3D printing. Students use hydrodynamic modeling software and simple CAD programs to design a shape with the least amount of drag based on strategies gleaned from the study of natural forms. Students then print the shapes using a 3D printer and test their shapes against their classmates in a friendly competition. From this exercise, students gain a more intuitive sense of the challenges that organisms face when moving through fluid environments, the physical phenomena involved in moving through fluids at high Reynolds numbers and observe how and why certain morphologies, such as streamlining, are common answers to the challenge of swimming at high speeds.
Gaining a Better Understanding of Estuarine Circulation and Improving Data Visualization Skills Through a Hands-on Contouring Exercise

NASA Astrophysics Data System (ADS)

Mailloux, B. J.; Kenna, T. C.

2008-12-01

The creation and accurate interpretation of graphs is becoming a lost art among students. The availability of numerous graphing software programs makes the act of graphing data easy but does not necessarily aide students in interpreting complex visual data. This is especially true for contour maps; which have become a critical skill in the earth sciences and everyday life. In multiple classes, we have incorporated a large-scale, hands-on, contouring exercise of temperature, salinity, and density data collected in the Hudson River Estuary. The exercise allows students to learn first-hand how to plot, analyze, and present three dimensional data. As part of a day-long sampling expedition aboard an 80' research vessel, students deploy a water profiling instrument (Seabird CTD). Data are collected along a transect between the Verrazano and George Washington Bridges. The data are then processed and binned at 0.5 meter intervals. The processed data is then used during a later laboratory period for the contouring exercise. In class, students work in groups of 2 to 4 people and are provided with the data, a set of contouring instructions, a piece of large (3' x 3') graph paper, a ruler, and a set of colored markers. We then let the groups work together to determine the details of the graphs. Important steps along the way are talking to the students about X and Y scales, interpolation, and choices of contour intervals and colors. Frustration and bottlenecks are common at the beginning when students are unsure how to even begin with the raw data. At some point during the exercise, students start to understand the contour concept and each group usually produces a finished contour map in an hour or so. Interestingly, the groups take pride in the coloring portion of the contouring as it indicates successful interpretation of the data. The exercise concludes with each group presenting and discussing their contour plot. In almost every case, the hands-on graphing has improved the
Students' Perceptions of a Project-Based Organic Chemistry Laboratory Environment: A Phenomenographic Approach

ERIC Educational Resources Information Center

Burrows, Nikita L.; Nowak, Montana K.; Mooring, Suazette R.

2017-01-01

Students can perceive the laboratory environment in a variety of ways that can affect what they take away from the laboratory course. This qualitative study characterizes undergraduate students' perspectives of a project-based Organic Chemistry laboratory using the theoretical framework of phenomenography. Eighteen participants were interviewed in…
Mapping cognitive structures of community college students engaged in basic electrostatics laboratories

NASA Astrophysics Data System (ADS)

Haggerty, Dennis Charles

Community college students need to be abstract thinkers in order to be successful in the introductory Physics curriculum. The purpose of this dissertation is to map the abstract thinking of community college Physics students. The laboratory environment was used as a vehicle for the mapping. Three laboratory experiments were encountered. One laboratory was based on the classic Piagetian task, the centripetal motion (CM) problem. The other two laboratories were introductory electrostatic Physics experiments, Resistance (RES) and Capacitance (CAP). The students performed all laboratories using the thinking-aloud technique. The researcher collected their verbal protocols using audiotapes. The audiotaped data was quantified by comparing it to a scoring matrix based on the Piagetian logical operators (Inhelder & Piaget, 1958) for abstract thinking. The students received scores for each laboratory experiment. These scores were compared to a reliable test of intellectual functioning, the Shipley Institute of Living Scale (SILS). Spearman rank correlation coefficients (SRCC) were obtained for SILS versus CM; SILS versus RES; and SILS versus CAP. Statistically significant results were obtained for SILS versus CM and SILS versus RES at the p < 0.05 level. When an outlier to the data was considered and suppressed, the SILS versus CAP was also statistically significant at the p < 0.05 level. The scoring matrix permits a bridge from the qualitative Piagetian level of cognitive development to a quantified, mapped level of cognitive development. The ability to quantify student abstract thinking in Physics education provides a means to adjust an instructional approach. This approach could lead to a proper state of Physics education.
Laboratory 3.0: Manufacturing Technologies Laboratory Virtualization with a Student-Centred Methodology

ERIC Educational Resources Information Center

Fabregat-Sanjuan, Albert; Pàmies-Vilà, Rosa; Ferrando Piera, Francesc; De la Flor López, Silvia

2017-01-01

This paper presents a blended-learning strategy for improving the teaching method applied in the laboratory subject Manufacturing Technologies. The teaching method has been changed from a predominantly teacher-centred to an active learning system with a student-centred focus and e-learning activities. In face-to-face classes, a game-based learning…
Agreed Discoveries: Students' Negotiations in a Virtual Laboratory Experiment

ERIC Educational Resources Information Center

Karlsson, Goran; Ivarsson, Jonas; Lindstrom, Berner

2013-01-01

This paper presents an analysis of the scientific reasoning of a dyad of secondary school students about the phenomenon of dissolution of gases in water as they work on this in a simulated laboratory experiment. A web-based virtual laboratory was developed to provide learners with the opportunity to examine the influence of physical factors on gas…
A Laboratory Exercise to Illustrate Increased Salivary Cortisol in Response to Three Stressful Conditions Using Competitive ELISA

ERIC Educational Resources Information Center

Haussmann, Mark F.; Vleck, Carol M; Farrar, Eugenia S.

2007-01-01

Perceived stress activates the hypothalamus-pituitary-adrenal axis, resulting in the release of glucocorticoids into the systemic circulation. Glucocorticoids cause the elevation of blood glucose, providing the necessary energy for the organism to cope with stress. Here, we outline a laboratory exercise that uses a competitive ELISA kit to…
Implementation of Scientific Community Laboratories and Their Effect on Student Conceptual Learning, Attitudes, and Understanding of Uncertainty

NASA Astrophysics Data System (ADS)

Lark, Adam

Scientific Community Laboratories, developed by The University of Maryland, have shown initial promise as laboratories meant to emulate the practice of doing physics. These laboratories have been re-created by incorporating their design elements with the University of Toledo course structure and resources. The laboratories have been titled the Scientific Learning Community (SLC) Laboratories. A comparative study between these SLC laboratories and the University of Toledo physics department's traditional laboratories was executed during the fall 2012 semester on first semester calculus-based physics students. Three tests were executed as pre-test and post-tests to capture the change in students' concept knowledge, attitudes, and understanding of uncertainty. The Force Concept Inventory (FCI) was used to evaluate students' conceptual changes through the semester and average normalized gains were compared between both traditional and SLC laboratories. The Colorado Learning Attitudes about Science Survey for Experimental Physics (E-CLASS) was conducted to elucidate students' change in attitudes through the course of each laboratory. Finally, interviews regarding data analysis and uncertainty were transcribed and coded to track changes in the way students understand uncertainty and data analysis in experimental physics after their participation in both laboratory type. Students in the SLC laboratories showed a notable an increase conceptual knowledge and attitudes when compared to traditional laboratories. SLC students' understanding of uncertainty showed most improvement, diverging completely from students in the traditional laboratories, who declined throughout the semester.
A Streamlined Western Blot Exercise: An Efficient and Greener Approach in the Laboratory Classroom

ERIC Educational Resources Information Center

Ness, Traci L.; Robinson, Rebekah L.; Mojadedi, Wais; Peavy, Lydia; Weiland, Mitch H.

2015-01-01

SDS-PAGE and western blotting are two commonly taught protein detection techniques in biochemistry and molecular biology laboratory classrooms. A pitfall associated with incorporating these techniques into the laboratory is the significant wait times that do not allow students to obtain timely results. The waiting associated with SDS-PAGE comes…
A comparison of student reactions to biology instruction by interactive videodisc or conventional laboratory

NASA Astrophysics Data System (ADS)

Leonard, William H.

This study was designed to learn if students perceived an interactive computer/videodisc learning system to represent a viable alternative to (or extension of) the conventional laboratory for learning biology skills and concepts normally taught under classroom laboratory conditions. Data were collected by questionnaire for introductory biology classes at a large midwestern university where students were randomly assigned to two interactive videodisc/computer lessons titled Respiration and Climate and Life or traditional laboratory investigation with the same titles and concepts. The interactive videodisc system consisted of a TRS-80 Model III microcomputer interfaced to a Pioneer laser-disc player and a color TV monitor. Students indicated an overall level satisfaction with this strategy very similar to that of conventional laboratory instruction. Students frequently remarked that videodisc instruction gave them more experimental and procedural options and more efficient use of instructional time than did the conventional laboratory mode. These two results are consistent with past CAI research. Students also had a strong perception that the images on the videodisc were not real and this factor was perceived as having both advantages and disadvantages. Students found the two approaches to be equivalent to conventional laboratory instruction in the areas of general interest, understanding of basic principles, help on examinations, and attitude toward science. The student-opinion data in this study do not suggest that interactive videodisc technology serve as a substitute to the wet laboratory experience, but that this medium may enrich the spectrum of educational experiences usually not possible in typical classroom settings.
Assessment of Physical Activity, Exercise Self-Efficacy, and Stages of Change in College Students Using a Street-Based Survey Method.

ERIC Educational Resources Information Center

Leenders, Nicole Y. J. M.; Silver, Lorraine Wallace; White, Susan L.; Buckworth, Janet; Sherman, W. Michael

2002-01-01

Used a street-based survey to assess college students' physical activity level, exercise self-efficacy, and stages of change for exercise behavior. A large proportion of respondents were not regularly active. Exercise self-efficacy was an important variable in exercise behavior. The low cost, ease of data collection, and short turnaround for…
Evaluating the Effects of an Applied Learning Exercise on Students' Interest in Social Policy

ERIC Educational Resources Information Center

Weaver, Robert D.; Nackerud, Larry G.

2005-01-01

There is ample evidence that points out that the majority of social work students have little interest in social policy analysis. In this study, the impact a classroom-based policy construction exercise had on the interest level in policy of a differentiated sample (N = 43) of MSW students, in which participants were enrolled in either a…
Morning Exercise

ERIC Educational Resources Information Center

Schmitt, Natalie Crohn

2006-01-01

In this article, Natalie Schmitt recalls her teaching experiences with morning exercise programs, beginning with her first teaching job as assistant Morning Exercise teacher at the Francis W. Parker School in Chicago. In the Morning Exercises, students were encouraged to employ all means of expression: speaking, drawing, dancing, singing, acting.…
Pre-Nursing Students Perceptions of Traditional and Inquiry Based Chemistry Laboratories

NASA Astrophysics Data System (ADS)

Rogers, Jessica

This paper describes a process that attempted to meet the needs of undergraduate students in a pre-nursing chemistry class. The laboratory was taught in traditional verification style and students were surveyed to assess their perceptions of the educational goals of the laboratory. A literature review resulted in an inquiry based method and analysis of the needs of nurses resulted in more application based activities. This new inquiry format was implemented the next semester, the students were surveyed at the end of the semester and results were compared to the previous method. Student and instructor response to the change in format was positive. Students in the traditional format placed goals concerning technique above critical thinking and felt the lab was easy to understand and carry out. Students in the inquiry based lab felt they learned more critical thinking skills and enjoyed the independence of designing experiments and answering their own questions.
Modern Laboratory Exercises in Astronomy V: New Lab Exercises, Electronic Publication and Dissemination

NASA Astrophysics Data System (ADS)

Caton, D. B.; Gray, R. O.; Pollock, J. T.; Burns, W. C.; Hawkins, R. L.

1993-12-01

New lab exercises are presented, continuing a series developed over the past few years (see Caton and Pollock, BAAS 18 No. 4, 22 Nos. 1 and 4, and 23 No.4, and 24 No. 4), including a PC-based spectral classification exercise that displays spectra on a VGA screen, and a simple PC-based eclipsing binary light curve simulation program. Information packets will be available, including software, lab exercises, and instructor's notes. These will be on paper and on (PC) disk, in ASCII and WordPerfect formats, including some figures in AutoDesk's Generic CADD form. This will allow other institutions to modify the exercises to fit their own equipment and procedures. Information will also be provided on accessing a PC that we have installed on the Internet to allow acquisition of future updates and additional materials that will be developed.
Exercise motivation of college students in online, face-to-face, and blended basic studies physical activity and wellness course delivery formats.

PubMed

Sidman, Cara Lynn; Fiala, Kelly Ann; D'Abundo, Michelle Lee

2011-01-01

The purpose of this study was to assess exercise motivation among college students self-selected into 4 online (OL) and face-to-face (F2F) basic studies' physical activity and wellness course delivery formats. Out of 1,037 enrolled students during the Spring 2009 semester, 602 responded online to demographic questions and to the Behavioural Regulation in Exercise Questionnaire, which assessed exercise motivation on 5 subscales. There were no significant differences (p > .05) in exercise motivation for students across course delivery formats, but there was a significant difference in age and employment status between the completely OL and F2F course formats. Health and physical educators can utilize these findings to better understand that physical activity and wellness students are not necessarily trying to avoid physical activity when selecting the OL course format, but are more likely trying to balance work and school responsibilities and need greater flexibility in time and location.

Use of Feedback-Oriented Online Exercises to Help Physiology Students Construct Well-Organized Answers to Short-Answer Questions.

PubMed

Carnegie, Jacqueline

2015-01-01

Postsecondary education often requires students to use higher-order cognitive skills (HOCS) such as analysis, evaluation, and creation as they assess situations and apply what they have learned during lecture to the formulation of solutions. Summative assessment of these abilities is often accomplished using short-answer questions (SAQs). Quandary was used to create feedback-oriented interactive online exercises to help students strengthen certain HOCS as they actively constructed answers to questions concerning the regulation of 1) metabolic rate, 2) blood sugar, 3) erythropoiesis, and 4) stroke volume. Each exercise began with a SAQ presenting an endocrine dysfunction or a physiological challenge; students were prompted to answer between six and eight multiple-choice questions while building their answer to the SAQ. Student outcomes on the SAQ sections of summative exams were compared before and after the introduction of the online tool and also between subgroups of students within the posttool-introduction population who demonstrated different levels of participation in the online exercises. While overall SAQ outcomes were not different before and after the introduction of the online exercises, once the SAQ tool had become available, those students who chose to use it had improved SAQ outcomes compared with those who did not. © 2015 J. Carnegie. CBE—Life Sciences Education © 2015 The American Society for Cell Biology. This article is distributed by The American Society for Cell Biology under license from the author(s). It is available to the public under an Attribution–Noncommercial–Share Alike 3.0 Unported Creative Commons License (http://creativecommons.org/licenses/by-nc-sa/3.0).
[Influence of an 8-week exercise intervention on body composition, physical fitness, and mental health in female nursing students].

PubMed

Yamazaki, Fumio; Yamada, Hisao; Morikawa, Sachiko

2013-03-01

To determine the effectiveness of habitual exercise on the health promotion of college students, we measured the body composition and physical fitness of female nursing students before (Pre) and after (Post) an 8-week low-intensity exercise intervention. We also conducted a questionnaire survey of their mental health condition before and at every 4 weeks during the intervention. The quantity of physical exercise increased (P < 0.0001) from 0.9 ± 0.2 METs･hr/week in the pre-intervention period to 6.6 ± 0.7 METs･hr /week during the intervention period. The exercise intervention did not alter the body weight, but decreased the body fat (Pre, 26.8 ± 0.5%; Post, 24.9 ± 0.5%, P < 0.01) and increased the whole-body muscle mass (Pre, 69.1 ± 0.5%; Post, 70.8 ± 0.4%, P < 0.01). The results of physical fitness tests showed that the intervention promoted muscular strength, muscular endurance, flexibility, agility, and muscular power. The scores for mental health were significantly raised by the intervention. These results suggest that habitual exercise for 8 weeks was effective for the promotion of physical and mental health in female nursing students.
Inquiry-based laboratory investigations and student performance on standardized tests in biological science

NASA Astrophysics Data System (ADS)

Patke, Usha

Achievement data from the 3rd International Mathematics and Sciences Study and Program for International Student Assessment in science have indicated that Black students from economically disadvantaged families underachieve at alarming rates in comparison to White and economically advantaged peer groups. The study site was a predominately Black, urban school district experiencing underachievement. The purpose of this correlational study was to examine the relationship between students' use of inquiry-based laboratory investigations and their performance on the Biology End of Course Test, as well as to examine the relationship while partialling out the effects of student gender. Constructivist theory formed the theoretical foundation of the study. Students' perceived levels of experience with inquiry-based laboratory investigations were measured using the Laboratory Program Variable Inventory (LPVI) survey. LPVI scores of 256 students were correlated with test scores and were examined by student gender. The Pearson correlation coefficient revealed a small direct correlation between students' experience in inquiry-based laboratory investigation classes and standardized test scores on the Biology EOCT. A partial correlational analysis indicated that the correlation remained after controlling for gender. This study may prompt a change from teacher-centered to student-centered pedagogy at the local site in order to increase academic achievement for all students. The results of this study may also influence administrators and policy makers to initiate local, state, or nationwide curricular development. A change in curriculum may promote social change as students become more competent, and more able, to succeed in life beyond secondary school.
Encouraging Student Participation While Designing Writing Exercises

NASA Astrophysics Data System (ADS)

Narayanan, M.

2017-12-01

Encouraging student participation while designing writing exercises requires a certain pragmatic approach. Wilbert James McKeachie is the author of a widely read textbook on college teaching. McKeachie was a longtime faculty member at the University of Michigan. He served as president of the American Psychological Association, the American Psychological Foundation and the American Association of Higher Education. In his famous book Teaching and Learning in the College Classroom, McKeachie provides an introduction and notes the role of research in identifying new goals for higher education. He also offers a conceptual framework based on a student mediation model and a focuses on the processs-product relationships between faculty teacher behavior and student learning outcomes. McKeachie' s Teaching Tips provides helpful strategies for dealing with both the everyday problems of university teaching and those that arise in trying to maximize learning for every student. The book does not suggest a set of recipes to be followed mechanically; it gives instructors the tools they need to deal with the ever-changing dynamics of teaching and learning. First, it is extremely important to define the target skill areas and means of implementation. Next, the professor can then proceed to focus on the techniques that could be employed to ensure student participation. This includes selection of an appropriate topic that is relevant to the field of study as well as classroom learning experiences. By pragmatically combining these objectives, the teacher can expect both enthusiasm and effective learning among the student population. McKeachie, Wilbert James. (1980) Learning, Cognition and College Teaching. San Francisco: Jossey - Bass McKeachie, Wilbert James. (1980) Teaching Tips: A Guidebook for the Beginning College Teacher Lexington, MASS. : Heath. 1986. ISBN: 0669067520 McKeachie, Wilbert James., et. al. (2001) Teaching Tips (Eleventh Edition): Strategies, Research, and Theory for
Laboratory Animal Care Training Manual for Instructors and Students.

ERIC Educational Resources Information Center

California Univ., San Francisco. Animal Care Facility.

This manual presents item-by-item, step-by-step procedures for the student being trained as a technician in laboratory animal care. Statements are preceeded by a box for the student to check when he has read each statement. The first 16 lessons cover: orientation; identifying, handling, and determining the sex of rodents and rabbits, cats and…
An in silico DNA cloning experiment for the biochemistry laboratory.

PubMed

Elkins, Kelly M

2011-01-01

This laboratory exercise introduces students to concepts in recombinant DNA technology while accommodating a major semester project in protein purification, structure, and function in a biochemistry laboratory for junior- and senior-level undergraduate students. It is also suitable for forensic science courses focused in DNA biology and advanced high school biology classes. Students begin by examining a plasmid map with the goal of identifying which restriction enzymes may be used to clone a piece of foreign DNA containing a gene of interest into the vector. From the National Center for Biotechnology Initiative website, students are instructed to retrieve a protein sequence and use Expasy's Reverse Translate program to reverse translate the protein to cDNA. Students then use Integrated DNA Technologies' OligoAnalyzer to predict the complementary DNA strand and obtain DNA recognition sequences for the desired restriction enzymes from New England Biolabs' website. Students add the appropriate DNA restriction sequences to the double-stranded foreign DNA for cloning into the plasmid and infecting Escherichia coli cells. Students are introduced to computational biology tools, molecular biology terminology and the process of DNA cloning in this valuable single session, in silico experiment. This project develops students' understanding of the cloning process as a whole and contrasts with other laboratory and internship experiences in which the students may be involved in only a piece of the cloning process/techniques. Students interested in pursuing postgraduate study and research or employment in an academic biochemistry or molecular biology laboratory or industry will benefit most from this experience. Copyright © 2010 Wiley Periodicals, Inc.
An analysis of high school students' perceptions and academic performance in laboratory experiences

NASA Astrophysics Data System (ADS)

Mirchin, Robert Douglas

This research study is an investigation of student-laboratory (i.e., lab) learning based on students' perceptions of experiences using questionnaire data and evidence of their science-laboratory performance based on paper-and-pencil assessments using Maryland-mandated criteria, Montgomery County Public Schools (MCPS) criteria, and published laboratory questions. A 20-item questionnaire consisting of 18 Likert-scale items and 2 open-ended items that addressed what students liked most and least about lab was administered to students before labs were observed. A pre-test and post-test assessing laboratory achievement were administered before and after the laboratory experiences. The three labs observed were: soda distillation, stoichiometry, and separation of a mixture. Five significant results or correlations were found. For soda distillation, there were two positive correlations. Student preference for analyzing data was positively correlated with achievement on the data analysis dimension of the lab rubric. A student preference for using numbers and graphs to analyze data was positively correlated with achievement on the analysis dimension of the lab rubric. For the separating a mixture lab data the following pairs of correlations were significant. Student preference for doing chemistry labs where numbers and graphs were used to analyze data had a positive correlation with writing a correctly worded hypothesis. Student responses that lab experiences help them learn science positively correlated with achievement on the data dimension of the lab rubric. The only negative correlation found related to the first result where students' preference for computers was inversely correlated to their performance on analyzing data on their lab report. Other findings included the following: students like actual experimental work most and the write-up and analysis of a lab the least. It is recommended that lab science instruction be inquiry-based, hands-on, and that students be
Effectiveness of Podcasts Delivered on Mobile Devices as a Support for Student Learning During General Chemistry Laboratories

NASA Astrophysics Data System (ADS)

Powell, Cynthia B.; Mason, Diana S.

2013-04-01

Chemistry instructors in teaching laboratories provide expert modeling of techniques and cognitive processes and provide assistance to enrolled students that may be described as scaffolding interaction. Such student support is particularly essential in laboratories taught with an inquiry-based curriculum. In a teaching laboratory with a high instructor-to-student ratio, mobile devices can provide a platform for expert modeling and scaffolding during the laboratory sessions. This research study provides data collected on the effectiveness of podcasts delivered as needed in a first-semester general chemistry laboratory setting. Podcasts with audio and visual tracks covering essential laboratory techniques and central concepts that aid in experimental design or data processing were prepared and made available for students to access on an as-needed basis on iPhones® or iPod touches®. Research focused in three areas: the extent of podcast usage, the numbers and types of interactions between instructors and student laboratory teams, and student performance on graded assignments. Data analysis indicates that on average the podcast treatment laboratory teams accessed a podcast 2.86 times during the laboratory period during each week that podcasts were available. Comparison of interaction data for the lecture treatment laboratory teams and podcast treatment laboratory teams reveals that scaffolding interactions with instructors were statistically significantly fewer for teams that had podcast access rather than a pre-laboratory lecture. The implication of the results is that student laboratory teams were able to gather laboratory information more effectively when it was presented in an on-demand podcast format than in a pre-laboratory lecture format. Finally, statistical analysis of data on student performance on graded assignments indicates no significant differences between outcome measures for the treatment groups when compared as cohorts. The only statistically
Characterization of the protease activity of detergents: laboratory practicals for studying the protease profile and activity of various commercial detergents.

PubMed

Valls, Cristina; Pujadas, Gerard; Garcia-Vallve, Santi; Mulero, Miquel

2011-07-01

Detergent enzymes account for about 30% of the total worldwide production of enzymes and are one of the largest and most successful applications of modern industrial biotechnology. Proteases can improve the wash performance of household, industrial, and institutional laundry detergents used to remove protein-based stains such as blood, grass, body fluids, and food soils. This article describes two easy and cheap laboratory exercises to study the presence, profile, and basic enzymology of detergent proteases. These laboratory practicals are based on the determination of the detergent protease activity of various commercial detergents using the N-succinyl-L-alanyl-L-alanyl-L-prolyl-L-phenylalanine p-nitroanilide method and the bovine serum albumin degradation capacity. Students are also required to elucidate the enzymatic subtype of detergent proteases by studying the inhibitory potential of several types of protease inhibitors revealed by the same experimental methodology. Additionally, the results of the exercises can be used to provide additional insights on elementary enzymology by studying the influence of several important parameters on protease activity such as temperature (in this article) and the influence of pH and effects of surfactants and oxidizers (proposed). Students also develop laboratory skills, problem-solving capacities, and the ability to write a laboratory report. The exercises are mainly designed for an advanced undergraduate project in the biochemistry and biotechnology sciences. Globally, these laboratory practicals show students the biotechnological applications of proteases in the detergent industry and also reinforce important enzymology concepts. Copyright © 2010 Wiley Periodicals, Inc.
Conformer Hunting: An Open-Ended Computational Chemistry Exercise That Expresses Real-World Complexity and Student Forethought

NASA Astrophysics Data System (ADS)

Lipkowitz, Kenny B.; Robertson, Daniel

2000-02-01

A computational chemistry project suitable for both graduate and undergraduate classes has been developed, tested, and implemented successfully over the course of 10 years. In this project we ask students the following simple question: "Which conformer searching strategy in Spartan is the best?" To answer this question the students need to develop a working definition of what "best" means within the context of the project, design their own experiments that can address that question most suitably, carry out the calculations to derive a compelling answer, and then write their results in the form of a research paper. In addition to teaching students about potential energy surfaces, molecular modeling techniques, and stereochemistry, the pedagogical advantages of this computational chemistry exercise compared to others published in this Journal are that it (i) requires a significant amount of student forethought in addition to afterthought by forcing students to design their own experiments, (ii) demonstrates real-world levels of complexity by using molecules having multiple rotatable bonds, (iii) allows for student creativity that is missing in most other published exercises, (iv) focuses on writing in the curriculum.
Assessment of Physical Activity, Exercise Self-Efficacy, and Stages of Change in College Students Using a Street-Based Survey Method

ERIC Educational Resources Information Center

Leenders, Nicole Y. J. M.; Silver, Lorraine Wallace; White, Susan L.; Buckworth, Janet; Sherman, W. Michael

2002-01-01

This study assessed the level of physical activity, exercise self-efficacy, and stages of change for exercise behavior among college students at a large midwestern university using a street-based survey method. The 50% response rate produced 925 student responses comprising 95% as young ([less than or equal to]24 years of age), 53% female, and 79%…
Exercise as an Intervention to Reduce Study-Related Fatigue among University Students: A Two-Arm Parallel Randomized Controlled Trial.

PubMed

de Vries, Juriena D; van Hooff, Madelon L M; Geurts, Sabine A E; Kompier, Michiel A J

2016-01-01

Many university students experience high levels of study-related fatigue. This high prevalence, and the negative impact of fatigue on health and academic performance, call for prevention and reduction of these symptoms. The primary aim of the current study was to investigate to what extent an exercise intervention is effective in reducing three indicators of study-related fatigue (emotional exhaustion, overall fatigue, and need for recovery). Effects of exercise on secondary outcomes (sleep quality, self-efficacy, physical fitness, and cognitive functioning) were also investigated. Participants were students with high levels of study-related fatigue, currently not exercising or receiving other psychological or pharmacological treatments, and with no medical cause of fatigue. They were randomly assigned to either a six-week exercise intervention (low-intensity running three times a week, n = 49) or wait list (no intervention, n = 48). All participants were measured before the intervention (T0), and immediately after the intervention (T1). Exercisers were also investigated 4 weeks (T2) and 12 weeks (T3) after the intervention. Participants in the exercise condition showed a larger decrease in two of the three indicators of study-related fatigue (i.e., overall fatigue and need for recovery) as compared to controls. Additionally, sleep quality and some indicators of cognitive functioning improved more among exercisers than among controls. No effects were found for self-efficacy, and physical fitness. The initial effects of the exercise intervention lasted at follow-up (T2 and T3). At 12-week follow up (T3), 80% of participants in the exercise condition still engaged in regular exercise, and further enhancements were seen for emotional exhaustion, overall fatigue, and sleep quality. These results underline the value of low-intensity exercise for university students with high levels of study-related fatigue. The follow-up effects that were found in this study imply that
Consumer-Oriented Laboratory Activities: A Manual for Secondary Science Students.

ERIC Educational Resources Information Center

Anderson, Jacqueline; McDuffie, Thomas E., Jr.

This document provides a laboratory manual for use by secondary level students in performing consumer-oriented laboratory experiments. Each experiment includes an introductory question outlining the purpose of the investigation, a detailed discussion, detailed procedures, questions to be answered upon completing the experiment, and information for…
The Hazardous-Drums Project: A Multiweek Laboratory Exercise for General Chemistry Involving Environmental, Quality Control, and Cost Evaluation

ERIC Educational Resources Information Center

Hayes, David; Widanski, Bozena

2013-01-01

A laboratory experiment is described that introduces students to "real-world" hazardous waste management issues chemists face. The students are required to define an analytical problem, choose a laboratory analysis method, investigate cost factors, consider quality-control issues, interpret the meaning of results, and provide management…
An Analysis of High School Students' Perceptions and Academic Performance in Laboratory Experiences

ERIC Educational Resources Information Center

Mirchin, Robert Douglas

2012-01-01

This research study is an investigation of student-laboratory (i.e., lab) learning based on students' perceptions of experiences using questionnaire data and evidence of their science-laboratory performance based on paper-and-pencil assessments using Maryland-mandated criteria, Montgomery County Public Schools (MCPS) criteria, and published…
"They Sweat for Science": The Harvard Fatigue Laboratory and Self-Experimentation in American Exercise Physiology.

PubMed

Johnson, Andi

2015-08-01

In many scientific fields, the practice of self-experimentation waned over the course of the twentieth century. For exercise physiologists working today, however, the practice of self-experimentation is alive and well. This paper considers the role of the Harvard Fatigue Laboratory and its scientific director, D. Bruce Dill, in legitimizing the practice of self-experimentation in exercise physiology. Descriptions of self-experimentation are drawn from papers published by members of the Harvard Fatigue Lab. Attention is paid to the ethical and practical justifications for self-experimentation in both the lab and the field. Born out of the practical, immediate demands of fatigue protocols, self-experimentation performed the long-term, epistemological function of uniting physiological data across time and space, enabling researchers to contribute to a general human biology program.
Use of Mushroom Tyrosinase to Introduce Michaelis-Menten Enzyme Kinetics to Biochemistry Students

ERIC Educational Resources Information Center

Flurkey, William H.; Inlow, Jennifer K.

2017-01-01

An inexpensive enzyme kinetics laboratory exercise for undergraduate biochemistry students is described utilizing tyrosinase from white button mushrooms. The exercise can be completed in one or two three-hour lab sessions. The optimal amounts of enzyme, substrate (catechol), and inhibitor (kojic acid) are first determined, and then kinetic data is…
Studying the Earth's Environment from Space: Computer Laboratory Exercised and Instructor Resources

NASA Technical Reports Server (NTRS)

Smith, Elizabeth A.; Alfultis, Michael

1998-01-01

Studying the Earth's Environment From Space is a two-year project to develop a suite of CD-ROMs containing Earth System Science curriculum modules for introductory undergraduate science classes. Lecture notes, slides, and computer laboratory exercises, including actual satellite data and software, are being developed in close collaboration with Carla Evans of NASA GSFC Earth Sciences Directorate Scientific and Educational Endeavors (SEE) project. Smith and Alfultis are responsible for the Oceanography and Sea Ice Processes Modules. The GSFC SEE project is responsible for Ozone and Land Vegetation Modules. This document constitutes a report on the first year of activities of Smith and Alfultis' project.
The role of exercise and gender for physical self-perceptions and importance ratings in Swedish university students.

PubMed

Lindwall, Magnus; Hassmén, Peter

2004-12-01

The purpose of this study was to investigate how scores on the Physical Self-Perception Profile (PSPP), including scores on the Perceived Importance Profile (PIP), were related to self-reported exercise frequency, duration, and gender in sample of Swedish university students. A total of 164 participants completed the PSPP, PIP, and a questionnaire focusing on frequency and duration of exercise. Exercise frequency, duration, and gender predicted best the PSPP sub-domains of Sport Competence and Physical Conditioning. Exercising more frequently, and for a longer time on each occasion was associated with higher PSPP and PIP scores. Women generally displayed lower PSPP scores than men. These results suggest that exercise professionals need to master a range of appropriate exercise strategies, since doubts concerning self-presentation may work against establishing a regular exercise routine.
Laboratory Exercise for Studying the Morphology of Heat-Denatured and Amyloid Aggregates of Lysozyme by Atomic Force Microscopy

ERIC Educational Resources Information Center

Gokalp, Sumeyra; Horton, William; Jónsdóttir-Lewis, Elfa B.; Foster, Michelle; Török, Marianna

2018-01-01

To facilitate learning advanced instrumental techniques, essential tools for visualizing biomaterials, a simple and versatile laboratory exercise demonstrating the use of Atomic Force Microscopy (AFM) in biomedical applications was developed. In this experiment, the morphology of heat-denatured and amyloid-type aggregates formed from a low-cost…

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