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Book part
Publication date: 17 December 2003

Norbert K Semmer, Simone Grebner and Achim Elfering

The preponderance of studies that rely on self-report for both independent (e.g. stressors) and dependent (e.g. well-being) variables is often deplored, as it creates problems of…

Abstract

The preponderance of studies that rely on self-report for both independent (e.g. stressors) and dependent (e.g. well-being) variables is often deplored, as it creates problems of common method variance, which may lead to inflated, or even spurious, correlations and predictions. It is sometimes suggested that alternative measures should yield more “objective” information on the phenomena under investigation. We discuss this issue with regard to: (a) observational measures of working conditions; (b) physiological measures of strain; and (c) event-based “self-observation” on a micro-level. We argue that these methods are not necessarily “objective.” Like self-report, they are influenced by a plethora of factors; and measurement artifacts can easily be produced. All this can make their interpretation quite difficult, and the conclusion that lack of convergence with self-report automatically invalidates self-report is not necessarily warranted. Especially with regard to physiological measures, one has to keep in mind that they refer to a different response level that follows its own laws and is only loosely coupled with psychological responses. Therefore, replacement is not a promising way to get more reliable estimates of stressor-strain relationships. We argue instead that each method contains both substantive and error variance, and that a combination of various methods seems more auspicious. After discussing advantages and pitfalls of observational, physiological, and self-observational measures, respectively, we report empirical examples from our own research on each of these methods, which are meant to illustrate both the advantages and the problems associated with them. They strengthen the overall conclusion that there is no “substitute” for self-report (which often is necessary to be able to interpret data from other methods, most notably physiological ones). They also illustrate that collecting such data is quite cumbersome, and that a number of conditions have to be carefully considered before using them, and we report some problems we encountered in this research. Altogether, we conclude that self-report measures, if carefully constructed, are better than their reputation, but that the optimal way is to complement them with other measures.

Details

Emotional and Physiological Processes and Positive Intervention Strategies
Type: Book
ISBN: 978-1-84950-238-2

Book part
Publication date: 15 July 2017

Andreas W. Ebert

Malnutrition is widespread and affects about one-third of humanity. Increasing production and consumption of vegetables is an obvious pathway to improve dietary diversity…

Abstract

Malnutrition is widespread and affects about one-third of humanity. Increasing production and consumption of vegetables is an obvious pathway to improve dietary diversity, nutrition and health. This chapter analyses how climate change is affecting vegetable production, with a special focus on the spread of insect pests and diseases. A thorough literature review was undertaken to assess current global vegetable production, the factors that affect the spread of diseases and insect pests, the implications caused by climate change, and how some of these constraints can be overcome. This study found that climate change combined with globalization, increased human mobility, and pathogen and vector evolution has increased the spread of invasive plant pathogens and other species with high fertility and dispersal. The ability to transfer genes from wild relatives into cultivated elite varieties accelerates the development of novel vegetable varieties. World Vegetable Center breeders have embarked on breeding for multiple disease resistance against a few important pathogens of global relevance and with large evolutionary potential, such as chili anthracnose and tomato bacterial wilt. The practical implications of this are that agronomic practices that enhance microbial diversity may suppress emerging plant pathogens through biological control. Grafting can effectively control soil-borne diseases and overcome abiotic stress. Biopesticides and natural enemies either alone or in combination can play a significant role in sustainable pathogen and insect pest management in vegetable production system. This chapter highlights the importance of integrated disease and pest management and the use of diverse production systems for enhanced resilience and sustainability of highly vulnerable, uniform cropping systems.

Book part
Publication date: 1 November 2007

Irina Farquhar, Michael Kane, Alan Sorkin and Kent H. Summers

This chapter proposes an optimized innovative information technology as a means for achieving operational functionalities of real-time portable electronic health records, system…

Abstract

This chapter proposes an optimized innovative information technology as a means for achieving operational functionalities of real-time portable electronic health records, system interoperability, longitudinal health-risks research cohort and surveillance of adverse events infrastructure, and clinical, genome regions – disease and interventional prevention infrastructure. In application to the Dod-VA (Department of Defense and Veteran's Administration) health information systems, the proposed modernization can be carried out as an “add-on” expansion (estimated at $288 million in constant dollars) or as a “stand-alone” innovative information technology system (estimated at $489.7 million), and either solution will prototype an infrastructure for nation-wide health information systems interoperability, portable real-time electronic health records (EHRs), adverse events surveillance, and interventional prevention based on targeted single nucleotide polymorphisms (SNPs) discovery.

Details

The Value of Innovation: Impact on Health, Life Quality, Safety, and Regulatory Research
Type: Book
ISBN: 978-1-84950-551-2

Book part
Publication date: 13 July 2016

Catherine J. Taylor, Laura Freeman, Daniel Olguin Olguin and Taemie Kim

In this project, we propose and test a new device – wearable sociometric badges containing small microphones – as a low-cost and relatively unobtrusive tool for measuring stress…

Abstract

Purpose

In this project, we propose and test a new device – wearable sociometric badges containing small microphones – as a low-cost and relatively unobtrusive tool for measuring stress response to group processes. Specifically, we investigate whether voice pitch, measured using the microphone of the sociometric badge, is associated with physiological stress response to group processes.

Methodology

We collect data in a laboratory setting using participants engaged in two types of small-group interactions: a social interaction and a problem-solving task. We examine the association between voice pitch (measured by fundamental frequency of the participant’s speech) and physiological stress response (measured using salivary cortisol) in these two types of small-group interactions.

Findings

We find that in the social task, participants who exhibit a stress response have a statistically significant greater deviation in voice pitch (from their overall average voice pitch) than those who do not exhibit a stress response. In the problem-solving task, participants who exhibit a stress response also have a greater deviation in voice pitch than those who do not exhibit a stress response, however, in this case, the results are only marginally significant. In both tasks, among participants who exhibited a stress response, we find a statistically significant correlation between physiological stress response and deviation in voice pitch.

Practical and research implications

We conclude that wearable microphones have the potential to serve as cheap and unobtrusive tools for measuring stress response to group processes.

Details

Advances in Group Processes
Type: Book
ISBN: 978-1-78635-041-1

Keywords

Book part
Publication date: 28 February 2019

Naomi F. Campbell, Melissa S. Reeves, Marilyn Tourné and M. Francis Bridges

Process-oriented guided-inquiry learning (POGIL) is a student-centered instructional strategy to actively engage students in the classroom in promoting content mastery, critical…

Abstract

Process-oriented guided-inquiry learning (POGIL) is a student-centered instructional strategy to actively engage students in the classroom in promoting content mastery, critical thinking, and process skills. The students organize into groups of three to four, and each group member works collaboratively to construct their understanding as they proceed through the embedded learning cycle in the POGIL activity. Each group member has a specific role and actively engages in the learning process. The roles rotate periodically, and each student has the opportunity to develop essential process skills, such as leadership skills, oral and written communication skills, team-building skills, and information-processing skills. The student groups are self-managed, and the instructor serves as a facilitator of student learning. A POGIL activity typically contains a model that the students deconstruct using a series of guided, exploratory questions. The students develop concepts (concept invention) as the group members reach a valid, consensus conclusion. The students apply their concepts to new problems completing the learning cycle. The authors implemented POGIL instruction in several chemistry courses at Jackson State University and Tuskegee University. They share their initial findings, experiences, and insights gained using a new instructional strategy.

Book part
Publication date: 23 February 2015

Sandra C. Buttigieg, Wilfried von Eiff, Patrick Farrugia and Maximilian C. von Eiff

Point-of-care testing (POCT) at the Emergency Department (ED) attains better objectives in patient care while aiming to achieve early diagnosis for faster medical decision-making…

Abstract

Purpose

Point-of-care testing (POCT) at the Emergency Department (ED) attains better objectives in patient care while aiming to achieve early diagnosis for faster medical decision-making. This study assesses and compares the benefits of POCT in the ED in Germany and Malta, while considering differences in their health systems.

Methodology/approach

This chapter utilizes multiple case study approach using Six Sigma. The German case study assesses the use of POCT in acute coronary syndrome patients, compared to the central lab setting. The Maltese case study is a pilot study of the use of medical ultrasonography as a POCT to detect abdominal free fluid in post-blunt trauma.

Findings

This study provides clear examples of the effectiveness of POCT in life-threatening conditions, as compared to the use of traditional central lab or the medical imaging department. Therapeutic quality in the ED and patient outcomes directly depend upon turnaround time, particularly for life-threatening conditions. Faster turnaround time not only saves lives but reduces morbidity, which in the long-term is a critical cost driver for hospitals.

Originality/value

The application of Six Sigma and the international comparison of POCT as best practice for life-threatening conditions in the ED.

Details

International Best Practices in Health Care Management
Type: Book
ISBN: 978-1-78441-278-4

Keywords

Book part
Publication date: 31 October 2015

Carla E. Oldham, Kevin P. Williams and Linda G. Love

The BRITE program at North Carolina Central University fosters the intellectual development of students and provides them with exposure to extensive undergraduate research…

Abstract

The BRITE program at North Carolina Central University fosters the intellectual development of students and provides them with exposure to extensive undergraduate research experiences. This hands-on training along with a rigorous academic program, advising, faculty mentoring, and career counseling adequately prepare students for careers in biotechnology, biopharmaceutical, or pharmaceutical industries and/or advanced degree programs. As a result, students are thoroughly prepared for scientific careers and to contribute to society as productive scientists. To date, there has been a high placement rate for graduates from the BRITE program. Similarly, we have also observed increasing rates of enrollment, retention, and graduation. The BRITE program is a model of success for educating future generations of scientists by infusing undergraduate research into HBCU curricula and clearly demonstrates the significance undergraduate research plays in preparing students for their professional careers.

Details

Infusing Undergraduate Research into Historically Black Colleges and Universities Curricula
Type: Book
ISBN: 978-1-78560-159-0

Keywords

Book part
Publication date: 14 December 2004

Fiona Murray and Mary Tripsas

While it is widely recognized that firms in an era of technological ferment exist under conditions of significant uncertainty and ambiguity, little is known about the exact…

Abstract

While it is widely recognized that firms in an era of technological ferment exist under conditions of significant uncertainty and ambiguity, little is known about the exact processes through which firms explore their ideas and resolve uncertainty. Arguing that our understanding of the era of ferment is much less developed than other aspects of the technology life cycle, we examine the micro-dynamics of technology-based entrepreneurial firms during this period. We focus on the role of purposeful experimentation as a key form of learning for start-ups firms in the era of ferment. Our approach contrasts with the prevailing view in the literature in which the era of ferment is characterized by extensive experimentation across firms, with each firm representing a single data point in an industry-level experiment. It also extends the learning literature by focusing on start-ups and taking the perspective that learning can encompass purposeful experimentation as well as local search and chaotic adaptation in the era of ferment. Building on the literature on experimental design, we propose a definition and taxonomy of purposeful experimentation. The taxonomy defines the experimental landscape as having three domains – technological, product and business model; and two dimensions – degree of simultaneity and degree of parameter manipulation. We examine this framework using data from a technology-based start-up and find evidence for purposeful experimentation as a key element of the firm’s learning strategy. We also highlight the organizational constraints and challenges that are associated with experimentation. Our findings emphasize the importance of entrepreneurial action, choice and internal experimentation processes.

Details

Business Strategy over the Industry Lifecycle
Type: Book
ISBN: 978-0-76231-135-4

Book part
Publication date: 28 February 2019

Leyte L. Winfield, Lisa B. Hibbard, Kimberly M. Jackson and Shanina Sanders Johnson

The racial and ethnic representation of individuals in the workforce is not comparable to that in the general population. In 2010, African Americans constituted 12.6% of the US…

Abstract

The racial and ethnic representation of individuals in the workforce is not comparable to that in the general population. In 2010, African Americans constituted 12.6% of the US population. However, African Americans represented less than 5% of PhD recipients in 2010; African American women comprised less than 1% of the degrees awarded in that same year. These disappointing statistics have sparked conversations regarding the retention of underrepresented groups with a focus on what helps to ensure these individuals will transition through the science, technology, engineering, and mathematics (STEM) pipeline. This chapter provides insight into the elements of the Spelman College learning environment that empower women of African descent to become agents of their success while facilitating their movement through the STEM pipeline. The chapter focuses on interventions and resources developed in the Chemistry and Biochemistry Department to foster student-centered learning. Described herein are cocurricular strategies and course-based interventions are used synergistically to enhance student outcomes. The approach to curricular innovation is framed by theories related to community of inquiry (CoI), metacognition, agency, and self-regulated learning. Strategic institutional investments have underpinned these efforts. In addition to providing a snapshot of student outcomes, the authors discuss lessons learned along with the realities of engaging in this type of intellectual work to elucidate the feasibility of adopting similar strategies at other institutions.

Details

Broadening Participation in STEM
Type: Book
ISBN: 978-1-78756-908-9

Keywords

Book part
Publication date: 30 December 2004

Fred H. Previc

Human performance, particularly that of the warfighter, has been the subject of a large amount of research during the past few decades. For example, in the Medline database of…

Abstract

Human performance, particularly that of the warfighter, has been the subject of a large amount of research during the past few decades. For example, in the Medline database of medical and psychological research, 1,061 papers had been published on the topic of “military performance” as of October 2003. Because warfighters are often pushed to physiological and mental extremes, a study of their performance provides a unique glimpse of the interplay of a wide variety of intrinsic and extrinsic factors on the functioning of the human brain and body. Unfortunately, it has proven very difficult to build performance models that can adequately incorporate the myriad of physiological, medical, social, and cognitive factors that influence behavior in extreme conditions. The chief purpose of this chapter is to provide a neurobiological (neurochemical) framework for building and integrating warfighter performance models in the physiological, medical, social, and cognitive areas. This framework should be relevant to all other professionals who routinely operate in extreme environments. The secondary purpose of this chapter is to recommend various performance metrics that can be linked to specific neurochemical states and can accordingly strengthen and extend the scope of the neurochemical model.

Details

The Science and Simulation of Human Performance
Type: Book
ISBN: 978-1-84950-296-2

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