University of St. Thomas - Minnesota

The present research investigated the persuasive impact and detectability of normative social influence. The first study surveyed 810 Californians about energy conservation and found that descriptive normative beliefs were more predictive of behavior than were other relevant beliefs, even though respondents rated such norms as least important in their conservation decisions. Study 2, a field experiment, showed that normative social influence produced the greatest change in behavior compared to information highlighting other reasons to conserve, even though respondents rated the normative information as least motivating. Results show that normative messages can be a powerful lever of persuasion but that their influence is underdetected.

A questionnaire was developed for the purpose of measuring Baumrind's (1971) permissive, authoritarian, and authoritative parental authority prototypes. It consists of 30 items per parent and yields permissive, authoritarian, and authoritative scores for both the mother and the father; each of these scores is derived from the phenomenological appraisals of the parents' authority by their son or daughter. The results of several studies have supported the Parental Authority Questionnaire as a psychometrically sound and valid measure of Baumrind's parental authority prototypes, and they have suggested that this questionnaire has considerable potential as a valuable tool in the investigation of correlates of parental permissiveness, authoritarianism, and authoritativeness.

Martin Ruef, Howard E. Aldrich, Nancy M. Carter, The Structure of Founding Teams: Homophily, Strong Ties, and Isolation among U.S. Entrepreneurs, American Sociological Review, Vol. 68, No. 2 (Apr., 2003), pp. 195-222

This paper provides an overview of United States-based research on the ways in which racism can affect mental health. It describes changes in racial attitudes over time, the persistence of negative racial stereotypes and the ways in which negative beliefs were incorporated into societal policies and institutions. It then reviews the available scientific evidence that suggests that racism can adversely affect mental health status in at least three ways. First, racism in societal institutions can lead to truncated socioeconomic mobility, differential access to desirable resources, and poor living conditions that can adversely affect mental health. Second, experiences of discrimination can induce physiological and psychological reactions that can lead to adverse changes in mental health status. Third, in race-conscious societies, the acceptance of negative cultural stereotypes can lead to unfavorable self-evaluations that have deleterious effects on psychological well-being. Research directions are outlined.

Earth's energy imbalance (EEI) drives the ongoing global warming and can best be assessed across the historical record (that is, since 1960) from ocean heat content (OHC) changes. An accurate assessment of OHC is a challenge, mainly because of insufficient and irregular data coverage. We provide updated OHC estimates with the goal of minimizing associated sampling error. We performed a subsample test, in which subsets of data during the data-rich Argo era are colocated with locations of earlier ocean observations, to quantify this error. Our results provide a new OHC estimate with an unbiased mean sampling error and with variability on decadal and multidecadal time scales (signal) that can be reliably distinguished from sampling error (noise) with signal-to-noise ratios higher than 3. The inferred integrated EEI is greater than that reported in previous assessments and is consistent with a reconstruction of the radiative imbalance at the top of atmosphere starting in 1985. We found that changes in OHC are relatively small before about 1980; since then, OHC has increased fairly steadily and, since 1990, has increasingly involved deeper layers of the ocean. In addition, OHC changes in six major oceans are reliable on decadal time scales. All ocean basins examined have experienced significant warming since 1998, with the greatest warming in the southern oceans, the tropical/subtropical Pacific Ocean, and the tropical/subtropical Atlantic Ocean. This new look at OHC and EEI changes over time provides greater confidence than previously possible, and the data sets produced are a valuable resource for further study.

The dynamics of individual and situational interest and academic performance were examined in the college classroom and 7 semesters later in conjunction with achievement goals. At the beginning of an introductory psychology course, participants reported their initial interest in psychology, achievement goals, and situational interest in course lectures. At the end of the semester, participants (N = 858) reported their situational interest in course lectures and psychology. In the short term, relationships emerged among initial interest, achievement goals, situational interest, and class performance. Longitudinally, situational interest during the introductory course, independent of initial interest, predicted subsequent course choices. Results are discussed in terms of S. Hidi and K. A. Renninger's (2006) 4-phase model of interest development and the multiple goals model (J. M. Harackiewicz, K. E. Barron, P. R. Pintrich, A. J. Elliot, & T. M. Thrash, 2002).

This document is a summary of a report prepared by the IEEE PES Task Force (TF) on Microgrid Stability Definitions, Analysis, and Modeling, IEEE Power and Energy Society, Piscataway, NJ, USA, Tech. Rep. PES-TR66, Apr. 2018, which defines concepts and identifies relevant issues related to stability in microgrids. In this paper, definitions and classification of microgrid stability are presented and discussed, considering pertinent microgrid features such as voltage-frequency dependence, unbalancing, low inertia, and generation intermittency. A few examples are also presented, highlighting some of the stability classes defined in this paper. Further examples, along with discussions on microgrid components modeling and stability analysis tools can be found in the TF report.

This work experimentally identifies the charge-transfer energy as a key factor governing the catalytic oxygen evolution reaction (OER) activity and mechanism across a wide range of perovskite chemistries.

Purpose The purpose of this study is to explore cultural factors influencing knowledge sharing strategies in virtual communities of practice. Design/methodology/approach A qualitative research design was employed. Data collection was based on in‐depth interviews. The authors assumed that such factors as degree of collectivism, competitiveness, the importance of saving face, in‐group orientation, attention paid to power and hierarchy, and culture‐specific preferences for communication modes, would explain differences in knowledge seeking and sharing patterns. Findings The results showed that these factors had different levels of importance among employees in the three participating countries. The issue of saving face was less important than expected in China. Modesty requirements as well as a high degree of competitiveness among employees were found to be serious barriers to information sharing in China, but not in Russia and Brazil. Perceived differences in power and hierarchy seemed to be less critical in all three countries than initially assumed. Research limitations/implications Since this study was conducted among the online community members of Caterpillar Inc., the results could be affected by factors unique to this specific case. Thus, future research should investigate the influence of other factors such as the organizational culture, or occupational groups on knowledge sharing strategies. Practical implications Before any introduction of country‐specific knowledge sharing systems, a cultural needs assessment should be conducted. Originality/value The impact of national culture factors on knowledge sharing has been largely neglected in the literature, and the findings will assist knowledge managers charged with the design of flexible knowledge management systems.

Observational records of ocean heat content show that ocean warming is accelerating

Abstract The evolution of ocean temperature measurement systems is presented with a focus on the development and accuracy of two critical devices in use today (expendable bathythermographs and conductivity‐temperature‐depth instruments used on Argo floats). A detailed discussion of the accuracy of these devices and a projection of the future of ocean temperature measurements are provided. The accuracy of ocean temperature measurements is discussed in detail in the context of ocean heat content, Earth's energy imbalance, and thermosteric sea level rise. Up‐to‐date estimates are provided for these three important quantities. The total energy imbalance at the top of atmosphere is best assessed by taking an inventory of changes in energy storage. The main storage is in the ocean, the latest values of which are presented. Furthermore, despite differences in measurement methods and analysis techniques, multiple studies show that there has been a multidecadal increase in the heat content of both the upper and deep ocean regions, which reflects the impact of anthropogenic warming. With respect to sea level rise, mutually reinforcing information from tide gauges and radar altimetry shows that presently, sea level is rising at approximately 3 mm yr −1 with contributions from both thermal expansion and mass accumulation from ice melt. The latest data for thermal expansion sea level rise are included here and analyzed.

Abstract This paper analyzes small firm performance in relation to efficiency and flexibility strategies. Using configuration theory, the authors propose that small firms that pursue efficiency strategies or flexibility strategies outperform those that attempt to pursue both. Additionally, size is used as a configurational attribute to develop competing hypotheses on whether efficiency strategies or flexibility strategies are better suited for small firm performance. In two samples of 200 and 144 privately‐held small firms, firms that mixed efficiency and flexibility strategies significantly underperformed. No significant performance differences were found between firms utilizing only efficiency strategies and those utilizing only flexibility strategies. Copyright © 2005 John Wiley & Sons, Ltd.

College students (N = 3,435) in 26 cultures reported their perceptions of age-related changes in physical, cognitive, and socioemotional areas of functioning and rated societal views of aging within their culture. There was widespread cross-cultural consensus regarding the expected direction of aging trajectories with (a) perceived declines in societal views of aging, physical attractiveness, the ability to perform everyday tasks, and new learning; (b) perceived increases in wisdom, knowledge, and received respect; and (c) perceived stability in family authority and life satisfaction. Cross-cultural variations in aging perceptions were associated with culture-level indicators of population aging, education levels, values, and national character stereotypes. These associations were stronger for societal views on aging and perceptions of socioemotional changes than for perceptions of physical and cognitive changes. A consideration of culture-level variables also suggested that previously reported differences in aging perceptions between Asian and Western countries may be related to differences in population structure.

Advancing beyond individual-level approaches to coping with racial trauma, we introduce a new psychological framework of radical healing for People of Color and Indigenous individuals (POCI) in the United States. We begin by providing a context of race and racism in the United States and its consequences for the overall well-being of POCI. We build on existing frameworks rooted in social justice education and activism and describe a form of healing and transformation that integrates elements of liberation psychology, Black psychology, ethnopolitical psychology, and intersectionality theory. We briefly review these conceptual foundations as a prelude to introducing a psychological framework of radical healing and its components grounded in five anchors including: (a) collectivism, (b) critical consciousness, (c) radical hope, (d) strength and resistance, and (e) cultural authenticity and self-knowledge. We conclude with a discussion of the applications of radical healing to clinical practice, research, training, and social justice advocacy.

Winter conditions are rapidly changing in temperate ecosystems, particularly for those that experience periods of snow and ice cover. Relatively little is known of winter ecology in these systems, due to a historical research focus on summer 'growing seasons'. We executed the first global quantitative synthesis on under-ice lake ecology, including 36 abiotic and biotic variables from 42 research groups and 101 lakes, examining seasonal differences and connections as well as how seasonal differences vary with geophysical factors. Plankton were more abundant under ice than expected; mean winter values were 43.2% of summer values for chlorophyll a, 15.8% of summer phytoplankton biovolume and 25.3% of summer zooplankton density. Dissolved nitrogen concentrations were typically higher during winter, and these differences were exaggerated in smaller lakes. Lake size also influenced winter-summer patterns for dissolved organic carbon (DOC), with higher winter DOC in smaller lakes. At coarse levels of taxonomic aggregation, phytoplankton and zooplankton community composition showed few systematic differences between seasons, although literature suggests that seasonal differences are frequently lake-specific, species-specific, or occur at the level of functional group. Within the subset of lakes that had longer time series, winter influenced the subsequent summer for some nutrient variables and zooplankton biomass.

Research in the past decade has extended knowledge of composition of goat milk and of properties of its constituents. Goats of several European breeds produce milk of lower fat content in the tropics than in temperate zones. Fat, protein, and lactose contents of milk of dwarf goats are higher than those of other breeds. Fat globules of goat milk resemble those of cow milk in lipid composition and properties of the globule membrane, but goat milk lacks "agglutinin" which causes fat globules of cow milk to cluster when cooled. Five principal proteins of goat milk, a-lactalbumin, 3-1actoglobulin, ~-casein, 3-casein, and as2-casein, closely resemble their homologs in cow milk. Goat milk lacks a homolog of bovine asl-casein, the most abundant protein in cow milk. Caseinate micelles of goat milk contain more calcium and inorganic phosphorus, are less solvated and less heat stable, and lose 3-casein more readily than bovine micelles. Activities of ribonuclease, lipase, and xanthine oxidase are less in goat than in cow milk. Goat milk contains more potassium and chloride but less orotic acid, N-acetyl neuraminic acid, folate, vitamin B6, and vitamin B12 than cow milk. Little work in the past decade has been on nutritive value of goat milk for humans except to describe cases of folate deficiency in infants.

Contemporary ecological landscape planning is often based on the assumption that small isolated habitat patches sustain relatively few species. Here, we suggest that for shallow lakes and ponds, the opposite can be true for some groups of organisms. Fish communities tend to be poor or even absent in small isolated lakes. However, submerged vegetation is often more abundant in such waterbodies. As a consequence of low fish biomass and high vegetation abundance, the richness of aquatic birds, plants, amphibians and invertebrates is often relatively high in small, shallow, isolated lakes. Although the rarity of fish is in line with expectations from the ruling paradigms about effects of habitat fragmentation in landscape ecology, the relative richness of various other groups of organisms in small ponds is opposite to these expectations. The case of shallow lakes illustrates that incorporating ecological interactions is essential to understanding the potential effects of habitat fragmentation. Single‐species meta‐population approaches may be misleading if ecological interactions are strong. A meta‐community approach that explicitly incorporates biotic interactions, also those involving different trophic levels, is needed. Our diagnosis suggests that connection of isolated habitat fragments may in some cases reduce, rather than enhance, landscape‐level biodiversity, and implies that biodiversity at the regional level will be maximized if the local habitat patches vary widely in size and degree of connectivity.

The authors examined the effects of competition and cooperation on intrinsic motivation and performance in 4 studies. Across 3 behavioral studies that involved shooting a basketball, no differences were observed between competition and cooperation on task enjoyment or performance. However, the combination of competition and cooperation (intergroup competition) consistently led to higher levels of intrinsic motivation, and in 2 of the 3 studies, performance. In a questionnaire study, the authors replicated the positive effects of intergroup competition on enjoyment and examined process measures that might account for these effects. These findings suggest that competition and cooperation both have positive aspects and that structuring recreational activities to include both can facilitate high levels of both intrinsic motivation and performance.

Three studies were conducted to develop and validate scores on a new measure appropriate for assessing adolescents’ situational interest (SI) across various academic settings. In Study 1 ( n = 858), a self-report questionnaire was administered to undergraduates in introductory psychology. Confirmatory factor analyses (CFA) supported a three-factor model that differentiated between interest generated by (a) the presentation of course material that grabbed students’ attention (triggered-SI), (b) the extent to which the material itself was enjoyable and engaging (maintained-SI-feeling), and (c) whether the material was viewed as important and valuable (maintained-SI-value). CFA analyses in Study 2 ( n = 284) and Study 3 ( n = 246) also supported the three-factor situational interest model for middle and high school students in mathematics. Moreover, situational interest was shown to be distinct from individual interest and was a statistically significant predictor of change in individual interest across the school year.

The 2001 second edition of this survey of the economics of - and public policy towards - the fine arts and performing arts covers arts at federal, state, and local levels in the United States as well as the international arts sector. The work will interest academic readers in the field and scholars of the sociology of the arts, as well as general readers seeking a systematic analysis of the arts. Theoretical concepts are developed from scratch so that readers with no background in economics can follow the argument. The authors look at the arts' historical growth and then examine consumption and production of the live performing arts and the fine arts, the functioning of arts markets, the financial problems of performing arts companies and museums, and the key role of public policy. A final chapter speculates about the future of art and culture in the United States.