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Effects Of Gender, Education, And Age Upon Leaders' Use Of Influence Tactics And Full Range Leadership Behaviors, John E. Barbuto Jr., Susan Fritz, Gina S. Matkin, David B. Marx

Department of Agricultural Leadership, Education, and Communication: Faculty Publications

Relationships of gender, age, and education to leadership styles and leaders' influence tactics were examined with 56 leaders and 234 followers from a variety of organizations. Leadership behaviors were measured with the Multi-factor Leadership Questionnaire (MLQ—rater version). Influence tactics were measured with Yukl’s Influence Behavior Questionnaire (IBQ). Multivariate Analysis of Variance (MANOVA) was used to test behavioral differences attributed to leaders' gender, age, and education groups, as well as the interaction of age and education with gender. Results show that gender produced a small direct effect on leadership behaviors. The interaction of gender and education produced consistent differences in leadership …

Perceptions Of Quality Of Life, Sense Of Community, And Life Satisfaction Among Elderly Residents In Schuyler And Crete, Nebraska, Rodrigo Cantarero, James J. Potter, Christina K. Leach

Architecture Program: Faculty Scholarly and Creative Activity

The purpose of this study is to identify key indicators affecting the elderly population's perception of Quality of Life (QoL) in two rural Nebraska communities--Crete and Schuyler. It also explores QoL indicators affecting their sense of satisfaction with living in the community and their perception of the town's sense of community. The current analysis is based on data obtained in two prior studies conducted by the authors. The results indicate that a majority of the elderly were satisfied. We also corroborated other studies' findings in which stress is negatively related to QoL. Finally, we confirmed a positive relation between strong …

Elder Research: Filling An Important Gap In Psychology And Law, Eve M. Brank

Department of Psychology: Faculty Publications

In the past few decades, psychology-law as a discipline has made great strides in understanding and guiding public policies on issues related to eyewitnesses, confessions, juries, judges, juveniles, the mentally ill, and many others. As a field, we have largely neglected the oldest subset of the population, with only a few scholars focusing specifically on elder issues or systematically including elders in their studies. The current article is a call to research. It first outlines why elders should be considered as a specific subset of the population even though they have not been an area of focus in the field. …

Granny, (Don’T) Get Your Gun: Competency Issues In Gun Ownership By Older Adults, Edith Greene, Brian H. Bornstein, Hannah Dietrich

Department of Psychology: Faculty Publications

This article explores the possible risks associated with gun ownership by older adults. We summarize existing regulations on who may own firearms, especially with respect to age. We then present data on older gun owners and violence committed by older adults in general, followed by a discussion of gun violence perpetrated by gun owners whose functional and cognitive abilities have declined, perhaps as a result of dementia. For comparison purposes, we review regulations on driving among older adults, drawing parallels to gun ownership. The paper concludes with recommendations for ensuring the safety of older gun owners and others, balanced against …

Conducting Cross-Cultural Research In Teams And The Search For The “Culture-Proof” Variable, Patricia Draper

Department of Anthropology: Faculty Publications

Objective: Cross-cultural research must always deal with the problem that meaning systems and behaviors cannot be readily compared from one culture to the next because the sociocultural context can vary so widely.
Design: The organizers of Project AGE: Age, Generation, and Experience, a multicultural study of aging, recognized this problem and devised instruments for studying age that allowed for cultural variation as well as comparability at higher levels of abstraction. The principal investigators of Project AGE and the individual researchers made every effort to gain an emic understanding (understanding based on categories recognized by the local respondents) of people’s attitudes …

Population Inference With Mortality And Attrition In Longitudinal Studies On Aging: A Two-Stage Multiple Imputation Method, Ofer Harel, Scott M. Hofer, Lesa Hoffman, Nancy L. Pedersen

Department of Psychology: Faculty Publications

First paragraph:

Although there are numerous challenges for the investigation of aging-related changes in older adults, statistical analysis with incomplete data and the conceptualization of population processes related to mortality is one of the most difficult. Selective attrition and mortality selection within longitudinal studies on aging are intrinsically related to many aging-related changes and must be carefully considered in the analysis and interpretation of results (e.g., Baltes, 1968; Hofer & Sliwinski, 2006; Schaie, Labouvie, & Barrett, 1973). A key distinction is made between attrition (i.e., selective dropout) and mortality selection (i.e., selective survival) in that attrition affects characteristics of the …

Interleukin-6 And Tumor Necrosis Factor-Alpha Values In Elk Neonates, Shannon M. Barber-Meyer, Craig R. Johnson, Michael P. Murtaugh, L. David Mech, P. J. White

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

Serological indicators of general condition would be helpful for monitoring or assessing ungulate wildlife. Toward that end, we report the 1st reference values for 2 cytokines, interleukin-6 (IL-6) and tumor necrosis factor-alpha (TNF-α), in neonatal elk (Cervus elaphus). We obtained blood samples from 140 calves ≤ 6 days old in Yellowstone National Park during summer 2003–2005. IL-6 values ranged from 0 to 1.21 pg/ml with a median of 0.03 pg/ml. TNF-α values ranged from 0 to 225.43 pg/ml with a median of 1.85 pg/ml. IL-6 and TNF-α concentrations were not significant predictors of elk calf survival through 21 …

Multilevel Models For Examining Individual Differences In Within-Person Variation And Covariation Over Time, Lesa Hoffman

Department of Psychology: Faculty Publications

Heterogeneity of variance may be more than a statistical nuisance—it may be of direct interest as a result of individual differences. In studies of short-term fluctuation, individual differences may relate to the magnitude of within-person variation as well as to level of an outcome or its covariation with other processes. Although models for heterogeneous variances have been utilized in group contexts (i.e., dispersion models), they are not usually applied in examinations of intraindividual variation. This work illustrates how an extension of the multilevel model for heterogeneous variances can be used to examine individual differences in level, between- and within-person covariation, …

On The Use Of Multilevel Modeling As An Alternative To Items Analysis In Psycholinguistic Research, Lawrence Locker Jr., Lesa Hoffman, James A. Bovaird

Department of Psychology: Faculty Publications

The use of multilevel modeling is presented as an alternative to separate item and subject ANOVAs (F₁ x F₂) in psycholinguistic research. Multilevel modeling is commonly utilized to model variability arising from the nesting of lower level observations within higher level units (e.g., students within schools, repeated measures within individuals). However, multilevel models can also be used when two random factors are crossed at the same level, rather than nested. The current work illustrates the use of the multilevel model for crossed random effects within the context of a psycholinguistic experimental study, in which both subjects …

Ecological Momentary Assessment Of Older Women's Health, Janice Penrod, Jeremy B. Yorgason, Susan J. Loeb, Chin-Fang Liu, Lesa Hoffman, Sarah H. Gueldner, Leonard W. Poon

Department of Psychology: Faculty Publications

Living with chronic co-morbidities implies long-lasting, always present conditions associated with highly variable health trajectories. In this study, ecological momentary assessment was used to explore nine older women's experiences of living with co-morbidities. Each participant completed a daily diary, which focused on 10 variables related to energy, pain, effort expended, and an overall health rating, for 21 days. Hierarchical linear modeling was used to explore intra-individual variation in daily health experiences and health-related burden, and determine the extent to which health-related burden was related to daily health experiences. Each of the daily health experience variables sipiificantly predicted health-related burden. Over …

Concordance Of Self-Report And Informant Assessment Of Emotional Well-Being In Nursing Home Residents With Dementia, Ann M. Kolanowski, Lesa Hoffman, Scott M. Hofer

Department of Psychology: Faculty Publications

The emotional well-being of persons with dementia is an aspect of their quality of life. We examined the stability of informant-rated and self-reported emotion, and the influence of mental status and physical dependence on ratings; we modeled concordance between ratings at both the within- and between-person levels of analysis. We used multilevel modeling to examine data collected over 12 days from 31 nursing home residents. We found significant within-person variation in both informant-rated and self-reported emotion, such that between 40% and 60% of the overall variance in each occurred within persons. We found little correspondence between or within persons between …

Communicative Predictors Of A Shared Family Identity: Comparison Of Grandchildren’S Perceptions Of Family-Of-Origin Grandparents And Stepgrandparents, Jordan Soliz

Department of Communication Studies: Faculty Publications

From an intergroup perspective on family relationships, the current study investigates family-of-origin grandparents and stepgrandparents to determine similarities and differences in communication and relational dimensions. Participants (N = 88) completed questionnaires on family-of-origin grandparents and stepgrandparent relationships. From the perspective of young adult grandchildren, the research explores the role of supportive communication, reciprocal self-disclosure, nonaccommodative communication, and parental encouragement in predicting a sense of shared family identity with each grandparent type. Results are discussed in terms of implications for intergroup research, grandparent-grandchild communication, and stepfamily relationships.

Feeding Drosophila A Biotin-Deficient Diet For Multiple Generations Increases Stress Resistance And Lifespan And Alters Gene Expression And Histone Biotinylation Patterns, Erin M. Smith, Jia Tse Hoi, Joel C. Eissenberg, James D. Shoemaker, Wendi S. Neckameyer, Anne M. Ilvarsonn, Lawrence G. Harshman, Vicki L. Schlegel, Janos Zempleni

Department of Nutrition and Health Sciences: Faculty Publications

Caloric restriction increases stress resistance and lifespan in Drosophila melanogaster and other species. The roles of individual nutrients in stress resistance and longevity are largely unknown. The vitamin biotin is a potential candidate for mediating these effects, given its known roles in stress signaling and gene regulation by epigenetic mechanisms, i.e., biotinylation of histones. Here, we tested the hypothesis that prolonged culture of Drosophila on biotin-deficient medium increases stress resistance and lifespan. Flies were fed a biotin-deficient diet for multiple generations; controls were fed a biotin-normal diet. In some experiments, a third group of flies was fed a biotin-deficient diet …

A Dyadic Examination Of Daily Health Symptoms And Emotional Well-Being In Late-Life Couples, Jeremy B. Yorgason, David Almeida, Shevaun D. Neupert, Avron Spiro Iii, Lesa Hoffman

Department of Psychology: Faculty Publications

This study investigated the link between daily health symptoms and spousal emotional well-being in a sample of 96 older dyads. Higher negative mood and lower positive mood were associated with spousal symptoms in couples wherein husbands or wives reported higher average levels of symptoms. For wives, partner effects were moderated by husbands’ marital satisfaction and illness severity. Specifically, higher husband marital satisfaction and illness severity were associated with higher negative mood and lower positive mood for wives on days where husbands reported higher symptom levels. In their work with later-life families, practitioners and educators should address long-term and daily health-related …

A Construction Of Twelve Lifelong Learners’ Perspectives: An In-Depth, Naturalistic Study Of Self-Integration Of Learning, Marvin L. Hunt

College of Education and Human Sciences: Dissertations, Theses, and Student Research

This research focuses on understanding people who have chosen to learn throughout their lives. A broad question guided this investigation: What is the rich, lived, lifelong learning experience from the individual’s perspective? This question allowed each participant freedom to explore and define issues he/she considered important relative to lifelong learning. Twelve lifelong learners from a wide range of backgrounds, ages, and experience were serially selected using maximum variation sampling. Most qualitative research uses a priori questions aimed at a specific topic, limiting participants’ discussion. In this study, however, grand tour questions prompted each participant to offer information about lifelong learning …

Environmental Stress And Reproduction In Drosophila Melanogaster: Starvation Resistance, Ovariole Numbers And Early Age Egg Production, Marta L. Wayne, Usha Soundararajan, Lawrence G. Harshman

Papers in Genetics

Background: The Y model of resource allocation predicts a tradeoff between reproduction and survival. Environmental stress could affect a tradeoff between reproduction and survival, but the physiological mechanisms underlying environmental mediation of the tradeoff are largely unknown. One example is the tradeoff between starvation resistance and early fecundity. One goal of the present study was to determine if reduced early age fecundity was indeed a robust indirect response to selection for starvation resistance, by investigation of a set of D. melanogaster starvation selected lines which had not previously been characterized for age specific egg production. Another goal of the present …

Interspecies Comparison Of Pentosidine Accumulation And Its Correlation With Age In Birds, Jesse A. Fallon, Robert L. Cochrane, Brian Dorr, Hillar Klandorf

United States Department of Agriculture Wildlife Services: Staff Publications

Recent studies suggest that a linear correlation exists between the age of individual birds and accumulation of the advanced glycation endproduct pentosidine (Ps). We compared Ps accumulation in skin tissue of Ruffed Grouse (Bonasa umbellus) and Double-crested Cormorants (Phalacrocorax auritus). Skin samples were taken from the breasts of 52 Ruffed Grouse of known ages ranging from a few days to 10 years. Skin was cleaned of feathers and adipose tissue, acid hydrolyzed, and measured for collagen content via hydroxyproline spectrophotometric assay. Pentosidine concentrations were determined using reverse-phase high-performance liquid chromatography. Fluorescent detection (excitation: 310 nm, emission: …

Changes In Co-Survivorship Of Adult Children And Parents: Ju/'Hoansi Of Botswana In 1968 And 1988, Patricia Draper, Nancy Howell

Department of Anthropology: Faculty Publications

Our study addresses these issues in a sociological microcosm that makes questions about population aging particularly interesting. The group on whom we report are the Ju|'hoansi (!Kung) of western Ngamiland, part of the Kalahari Desert of Botswana. They constitute a noteworthy case for several reasons. Discussion of modernization and its impact on the lives of elderly in traditional society has focused most often on agricultural and peasant societies, rather than on economically simpler groups such as hunter gatherers1). Ju|'hoansi, though now living in permanent settlements, have a recent past of mobile hunting and gathering. Over the past sixty years, Ju|'hoansi …

No Longer Intending: The Relationship Between Relinquished Fertility Intentions And Distress, Lynn K. White, Julia Mcquillan

Bureau of Sociological Research: Faculty Publications

We use data from both waves of the National Survey of Families and Households to assess whether relinquishing a serious intention to have (more) children leads to greater increases in depressive symptoms than continuing confidence in childbearing intentions. Our sample includes 2,200 individuals of childbearing age, men and women, all parities, and all marital statuses. Change score analysis shows that individuals who relinquished a serious intent to have children had elevated distress at Time 2 and that the association is conditioned by gender, health, and education. We find that fertility potential can be important to psychosocial well-being and that closing …

Community Members’ Perspectives Of The Role The Intergenerational Dialogue Process Served In Changing Residents’ Attitudes And Strategies For Working Together: A Multiple Case Study In Two Rural Midwestern Communities, Terry R. Waugh

Department of Agricultural Leadership, Education, and Communication: Dissertations, Theses, and Student Research

The purpose of this multiple case study was to describe community members’ perspectives of the role the Intergenerational Dialogue Process served in changing resident’s attitudes and behaviors in two Midwestern rural communities. Approximately one year after their involvement in the Intergeneration Dialogue, ten people (five from each community) were interviewed to describe if participating in the Intergenerational Dialogue changed their attitudes and behaviors toward seeking solutions that could resolve rural community issues. Three themes emerged from the interviews: understanding the generations, community action, and changes in communities. The findings of this research outlined changes in the participant’s attitudes toward other …

Laughter-Piece Theatre: Humor As A Systematic Teaching Tool, Ronald A. Berk

Professional and Organizational Development Network in Higher Education: Archives

Humor can be used to bring students and deadly boring content to life. It can hook your students, engage their emotions, and focus their minds and eyeballs on learning.

The Impact Of Support Received And Support Provision On Changes In Perceived Social Support Among Older Adults, Kimberly A. Tyler

Department of Sociology: Faculty Publications

The current study uses longitudinal data from the 1993 U.S. Midwest floods to examine the influence of support received and support provision on changes in perceived social support among older adults exposed to an acute stressor. Results indicated that flood exposure and higher levels of social support at Time 1 were positively associated with both receiving social support and providing social support specific to the food. Individuals with higher levels of support provision and received support in turn reported higher levels of perceived support post disaster. Women were more likely to have received flood specific support and to have perceived …

Demographics And Motivation Of Adult Group Piano Students, Brenda Wristen

Glenn Korff School of Music: Faculty Publications

Adults are continuing to pursue a greater quantity and variety of educational opportunities. As evidenced by this study, adults typically have compelling goals from the outset of piano study and maintain clear expectations regarding in¬struction. They found the group environment helpful, underscoring findings from aforementioned studies regarding the success of choir, band, and other group musical activities for adults. More research concerning the social motivation of group music participation is warranted. Further investigation into what factors motivate adults to seek out and continue to pursue music study would help teachers better address the needs and concerns of adult learners. Likewise, …

Spirituality And Culture In Higher Education, L. C. Menyweather-Woods

Different Perspectives on Majority Rules: 10th Annual National Conference (2005)

The fifth year of the New Millennium demands the Community of Faith to continue the dialogue of Richard Niebhur’s Christ and Culture, challenging the traditional belief “faith” cannot mutually coexist with culture, i.e., the true believer must always be choosing between the secular or sacred.

Rapid Senescence In Pacific Salmon, Yolanda E. Morbey, Chad Brassil, Andrew P. Hendry

School of Biological Sciences: Faculty Publications

Any useful evolutionary theory of senescence must be able to explain variation within and among natural populations and species. This requires a careful characterization of age-specific mortality rates in nature as well as the intrinsic and extrinsic factors that influence these rates. We perform this task for two populations of semelparous Pacific salmon. During the breeding season, estimated daily mortality rates increased from 0 to 0.2–0.5 (depending on the year) over the course of several weeks. Early-arriving individuals had a later onset and/or a lower rate of senescence in each breeding season, consistent with adaptive expectations based on temporal variation …

Biodemography Of A Long-Lived Tephritid: Reproduction And Longevity In A Large Cohort Of Female Mexican Fruit Flies, Anastrepha Ludens, James R. Carey, Pablo Liedo, Hans-Georg Müller, Jane-Ling Wang, Damla Senturke, Lawrence G. Harshman

Lawrence G. Harshman Publications

Age of sexual maturity, daily and lifetime reproductive rates, and life span were recorded in a laboratory cohort of Mexican fruit flies consisting of over 1100 females maintained individually. The results revealed that, relative to the medfly, the Mexfly is slower maturing (14 vs 17 days), more fecund (1400 vs 650–1100 eggs/female), and longer lived (50 vs 35 days). The results reinforced the generality of several earlier findings on the medfly including the deceleration of mortality at older ages and the weakness of the correlation between the rate of egg laying at early ages and both subsequent reproduction and remaining …

The Symmetry Of Longevity, Lawrence G. Harshman, Hans-Georg Müller, Xueli Liu, Yue Wang, James R. Carey

Lawrence G. Harshman Publications

We tested the hypothesis that relatively symmetrical flies live longer. Vein measurements on the left and right wings from the same individual were used to characterize bilateral symmetry in relationship to age-specific survival in defined cohorts. A longitudinal cohort study supported the hypothesis of a correlation between bilateral symmetry and longevity. For another type of experiment, wings were removed from females and males at approximately the beginning of adult life. Thus, there would be no effect of wings per se on adult survival. These wings were measured to characterize bilateral asymmetry, and the day of death of each dewinged individual …

Online Dictionary Of Invertebrate Zoology: G, Mary Ann Basinger Maggenti, Armand R. Maggenti, Scott L. Gardner

Armand R. Maggenti Online Dictionary of Invertebrate Zoology

galea gallery gallicola gallicolae gallicolous galliphagous galvanotaxis galvanotropism gametangiogamy gametangium gamete gametocyte gametogamy gametogenesis gametogenetic gametogeny gametogonium gametogony gametotoky gamma gamobium gamodeme gamogenesis gamogonic gamogony gamones gamophase ganglia gangliate ganglion ganglionic gap gaper gaping gas gaseous gaster gasterostome gasterotheca gastraea gastraeum gastral gastralia gastric gastrilegous gastrocoele gastrocoelus gastrodermis gastro-ileal gastrolith gastroorbital Gastropoda gastropods gastropores Gastrotricha gastrotrichs gastrovascular gastrozooid gastrula gastrular gathering Gause's gelatigenous gelatin gelatine gelatinous geminate gemma gemmate gemmation gemmipara gemmipares gemmule gemmulostasin gena genacerore genae genal genaponta genatasinus gene genera generalized generation generative generitype generotype Gene's genesiology genetic genetics genic genicular geniculate genital genitalia genitointestinal genocline genocopy genodeme …

Effects Of Parental Rejection And Relationship Quality On Depression Among Older Rural Adults, Jim P. Stimpson, Kimberly A. Tyler, Dan R. Hoyt

Department of Sociology: Faculty Publications

Research suggests that families have development histories which influence their responses to situations across the life course. The present study examined the effects of family relationship histories on intergenerational affection and conflict between adult children and their parents and how this affects parents’ depressive symptoms. Path analysis based on matched reports of adult children and their parents revealed that parental behavior early in life affects contemporary relationships between family members, which ultimately impacts parents’ depressive symptoms. Parental rejection is negatively associated with intergenerational affection, which in turn is negatively associated with depressive symptoms.

Stochastic Dietary Restriction Using A Markov-Chain Feeding Protocol Elicits Complex, Life History Response In Medflies, James R. Carey, Pablo Liedo, Hans-Georg Müller, Jane-Ling Wang, Ying Zhang, Lawrence G. Harshman

Lawrence G. Harshman Publications

Lifespan in individually housed medflies (virgins of both sexes) and daily reproduction for females were studied following one of 12 dietary restriction (DR) treatments in which the availability of high-quality food (yeast–sugar mixture) for each fly was based on a Markov chain feeding scheme – a stochastic dietary regime which specifies that the future dietary state depends only on the present dietary state and not on the path by which the present state was achieved. The stochastic treatments consisted of a combination of one of four values of a ‘discovery’ parameter and one of three values of a ‘persistence’ parameter. …