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PubMedDate not supplied

Relationships among childhood parental care, professional school climate, and nursing student caring ability.

A mailed random-sample survey of 350 senior baccalaureate nursing students explored relationships among early maternal and paternal care, the caring climate of nursing schools, and caring ability. Caring ability was quantified with the Caring Ability Inventory, Maternal and paternal care were measured with the Parental Bonding Instrument. School climate was measured on the Charles F. Kettering School Climate Inventory. There is no linear correlation between level of maternal or paternal care and subsequent caring ability (r = .01 and 0.01, respectively). However, a curvilinear relationship exists: Those with higher caring are respondents who scored both at the highest and the lowest levels of maternal care. Moreover, levels of caring within nursing schools appear to moderate caring ability developed at home. A caring school climate is the strongest predictor of caring ability (r = 0.16, P < .01). Thus, it is of concern to note that only 52 per cent of the respondents rated their schools high in caring. Caring is a valued attribute in professional nursing. If this quality is to flourish, it must be cultivated within the climate of nursing schools that exert a major professional socializing influence on future nurses.

Education, Nursing, Baccalaureate↗
PubMed2000

Perceptions of safety at work: a framework for linking safety climate to safety performance, knowledge, and motivation.

Research in the areas of organizational climate and work performance was used to develop a framework for measuring perceptions of safety at work. The framework distinguished perceptions of the work environment from perceptions of performance related to safety. Two studies supported application of the framework to employee perceptions of safety in the workplace. Safety compliance and safety participation were distinguished as separate components of safety-related performance. Perceptions of knowledge about safety and motivation to perform safely influenced individual reports of safety performance and also mediated the link between safety climate and safety performance. Specific dimensions of safety climate were identified and constituted a higher order safety climate factor. The results support conceptualizing safety climate as an antecedent to safety performance in organizations.

Australia↗
PubMed1994

Genetic and environmental influences on perceptions of organizational climate.

Genetic and environmental influences on perceptions of organizational climate were assessed by using a 4-group twin design. Data were obtained as part of the Swedish Adoption/Twin Study of Aging. The Work Environment Scale (WES) was used to evaluate perceptions of organizational climate. A measure of job satisfaction was also used to evaluate the effects of genes and environments on job attitudes. Maximum likelihood estimates of genetic and environmental influence suggested significant genetic effects for Supportive Climate--1 factor resulting from a factor analysis of the WES--but not for a second factor, Time Pressure. Significant environmental effects were found for both Supportive Climate and Time Pressure. Genetic effects were not significant for job satisfaction. The relevance of findings to organizational climate research and personnel selection are discussed.

Adult↗
PubMed1998

Linking service climate and customer perceptions of service quality: test of a causal model.

A set of foundation issues that support employee work and service quality is conceptualized as a necessary but not sufficient cause of a climate for service, which in turn is proposed to be reflected in customer experiences. Climate for service rests on the foundation issues, but in addition it requires policies and practices that focus attention directly on service quality. Data were collected at multiple points in time from employees and customers of 134 branches of a bank and analyzed via structural equation modeling. Results indicated that the model in which the foundation issues yielded a climate for service, and climate for service in turn led to customer perceptions of service quality, fit the data well. However, subsequent cross-lagged analyses revealed the presence of a reciprocal effect for climate and customer perceptions. Implications of these results for theory and research are offered.

Commerce↗
PubMed2003

Race matters: the relation between race and general campus climate.

This study examined students' perceptions of racial and academic climate as possible mediators of racial differences in the perception of the university's general campus climate (GCC). African American (n = 182), Latino (n = 212), Asian American (n = 358), and White (n = 671) students evaluated their perception of racial, academic, and general campus climates. As expected, racial minority students, particularly African Americans, perceived more negative general campus, racial, and academic climates than White students. Somewhat contrary to prediction, results indicated that racial differences in the perception of GCC were more closely related to perceptions of the academic than racial climate for members of all racial groups at all educational levels. Students' academic and racial experiences were the best predictors of their perception of GCC.

Adaptation, Psychological↗
PubMed2003

Cenozoic climate change as a possible cause for the rise of the Andes.

Causal links between the rise of a large mountain range and climate have often been considered to work in one direction, with significant uplift provoking climate change. Here we propose a mechanism by which Cenozoic climate change could have caused the rise of the Andes. Based on considerations of the force balance in the South American lithosphere, we suggest that the height of, and tectonics in, the Andes are strongly controlled both by shear stresses along the plate interface in the subduction zone and by buoyancy stress contrasts between the trench and highlands, and shear stresses in the subduction zone depend on the amount of subducted sediments. We propose that the dynamics of subduction and mountain-building in this region are controlled by the processes of erosion and sediment deposition, and ultimately climate. In central South America, climate-controlled sediment starvation would then cause high shear stress, focusing the plate boundary stresses that support the high Andes.

Journal Article↗
PubMed2004

High-resolution record of Northern Hemisphere climate extending into the last interglacial period.

Two deep ice cores from central Greenland, drilled in the 1990s, have played a key role in climate reconstructions of the Northern Hemisphere, but the oldest sections of the cores were disturbed in chronology owing to ice folding near the bedrock. Here we present an undisturbed climate record from a North Greenland ice core, which extends back to 123,000 years before the present, within the last interglacial period. The oxygen isotopes in the ice imply that climate was stable during the last interglacial period, with temperatures 5 degrees C warmer than today. We find unexpectedly large temperature differences between our new record from northern Greenland and the undisturbed sections of the cores from central Greenland, suggesting that the extent of ice in the Northern Hemisphere modulated the latitudinal temperature gradients in Greenland. This record shows a slow decline in temperatures that marked the initiation of the last glacial period. Our record reveals a hitherto unrecognized warm period initiated by an abrupt climate warming about 115,000 years ago, before glacial conditions were fully developed. This event does not appear to have an immediate Antarctic counterpart, suggesting that the climate see-saw between the hemispheres (which dominated the last glacial period) was not operating at this time.

Journal Article↗
PubMed2005

Climate change threats to plant diversity in Europe.

Climate change has already triggered species distribution shifts in many parts of the world. Increasing impacts are expected for the future, yet few studies have aimed for a general understanding of the regional basis for species vulnerability. We projected late 21st century distributions for 1,350 European plants species under seven climate change scenarios. Application of the International Union for Conservation of Nature and Natural Resources Red List criteria to our projections shows that many European plant species could become severely threatened. More than half of the species we studied could be vulnerable or threatened by 2080. Expected species loss and turnover per pixel proved to be highly variable across scenarios (27-42% and 45-63% respectively, averaged over Europe) and across regions (2.5-86% and 17-86%, averaged over scenarios). Modeled species loss and turnover were found to depend strongly on the degree of change in just two climate variables describing temperature and moisture conditions. Despite the coarse scale of the analysis, species from mountains could be seen to be disproportionably sensitive to climate change (approximately 60% species loss). The boreal region was projected to lose few species, although gaining many others from immigration. The greatest changes are expected in the transition between the Mediterranean and Euro-Siberian regions. We found that risks of extinction for European plants may be large, even in moderate scenarios of climate change and despite inter-model variability.

Biodiversity↗
PubMed2006

Variation in the sensitivity of organismal body temperature to climate change over local and geographic scales.

Global climate change is expected to have broad ecological consequences for species and communities. Attempts to forecast these consequences usually assume that changes in air or water temperature will translate into equivalent changes in a species' organismal body temperature. This simple change is unlikely because an organism's body temperature is determined by a complex series of interactions between the organism and its environment. Using a biophysical model, validated with 5 years of field observations, we examined the relationship between environmental temperature change and body temperature of the intertidal mussel Mytilus californianus over 1,600 km of its geographic distribution. We found that at all locations examined simulated changes in air or water temperature always produced less than equivalent changes in the daily maximum mussel body temperature. Moreover, the magnitude of body temperature change was highly variable, both within and among locations. A simulated 1 degrees C increase in air or water temperature raised the maximum monthly average of daily body temperature maxima by 0.07-0.92 degrees C, depending on the geographic location, vertical position, and temperature variable. We combined these sensitivities with predicted climate change for 2100 and calculated increases in monthly average maximum body temperature of 0.97-4.12 degrees C, depending on location and climate change scenario. Thus geographic variation in body temperature sensitivity can modulate species' experiences of climate change and must be considered when predicting the biological consequences of climate change.

Animals↗
PubMed2000

Geophysical, archaeological, and historical evidence support a solar-output model for climate change.

Although the processes of climate change are not completely understood, an important causal candidate is variation in total solar output. Reported cycles in various climate-proxy data show a tendency to emulate a fundamental harmonic sequence of a basic solar-cycle length (11 years) multiplied by 2(N) (where N equals a positive or negative integer). A simple additive model for total solar-output variations was developed by superimposing a progression of fundamental harmonic cycles with slightly increasing amplitudes. The timeline of the model was calibrated to the Pleistocene/Holocene boundary at 9,000 years before present. The calibrated model was compared with geophysical, archaeological, and historical evidence of warm or cold climates during the Holocene. The evidence of periods of several centuries of cooler climates worldwide called "little ice ages," similar to the period anno Domini (A.D.) 1280-1860 and reoccurring approximately every 1,300 years, corresponds well with fluctuations in modeled solar output. A more detailed examination of the climate sensitive history of the last 1, 000 years further supports the model. Extrapolation of the model into the future suggests a gradual cooling during the next few centuries with intermittent minor warmups and a return to near little-ice-age conditions within the next 500 years. This cool period then may be followed approximately 1,500 years from now by a return to altithermal conditions similar to the previous Holocene Maximum.

Journal Article↗
PubMed1997

Acclimation to three different hot climates with equivalent wet bulb globe temperatures.

The present study examined 2 hypotheses: Irrespective of the actual composition of thermal factors, the course of acclimation is similar in hot climates which are equivalent in terms of the WBGT. Acclimation to a defined hot thermal environment confers equal acclimation to any other equivalent climate. These hypotheses were supported with 3 substantially different but equivalent climates with WBGTs between 33.4 and 33.6 degrees C. Eight subjects (6 male, 2 female, 19-32 yrs) executed a treadmill walk (4 x 25 min, 4 km/h, 0 degree) while exposed to either a warm-humid, a hot-dry or a radiant heat condition on 15 consecutive days. On the following 2 days, those adapted to the warm-humid or to the radiant heat condition were exposed to the hot-dry climate and those adapted to the latter were exposed to the warm-humid climate. During the experiments, rectal temperatures, skin temperatures at three sites (forehead, chest, leg) and heart rates were measured continuously. Sweat loss was determined by weighing the subjects before and after the daily trials and during the breaks. At the same time, the subjects rated their actual well-being. Disregarding minor differences during the courses of acclimation, both hypotheses were verified.

Acclimatization↗
PubMed2003

Predicting motivational regulations in physical education: the interplay between dispositional goal orientations, motivational climate and perceived competence.

In this study, we examined the main and interactive effects of students' goal orientations, perceived competence and perceptions of the motivational climate on the motivational styles advanced by self-determination theory. The participants were 328 British secondary school students aged 13.6 +/- 0.6 years (mean +/- s). Moderated hierarchical regression analyses revealed task orientation, perceived competence and perceptions of a mastery climate to be positive predictors of self-determined styles of motivation. Perceived competence in physical education was negatively associated with amotivation. Significant interaction effects for mastery climate x task orientation and for ego orientation x perceived competence emerged. The results indicate that: (1) for students endorsing a high task orientation, the perception that the class climate was high in mastery cues was associated with increased intrinsic motivation; and (2) for students high in ego orientation, the belief that one was competent increased, while perceptions of incompetence attenuated intrinsic motivation. Additionally, a three-way interaction between ego orientation, performance climate and perceived competence emerged. In light of achievement goal and self-determination frameworks, we propose that studying the potential interplay between both individual and situational goal perspectives and the moderating effect of perceived competence may further enhance our understanding of motivation in physical education.

Adolescent↗
PubMed2001

Students' perceptions of the motivational climate, achievement beliefs, and satisfaction in physical education.

The present study examined the relationship between students' perceptions of the motivational climate and beliefs about the causes of success, preference for challenging tasks, and satisfaction in physical education. Responses of 50 female and 46 male students (M age = 12.08 years; SD = .72) showed that perceptions of a mastery-oriented motivational climate were related to the belief that motivation or effort caused success and satisfaction. In contrast, perceptions of a performance climate were related to the belief that deception caused success and related negatively to the students' preference for challenging tasks. Results of hierarchical regression analyses revealed that perceptions of the motivational climate explained a significant amount of unique variance in the students' responses after controlling for dispositional goal orientations. The results suggest that the teacher can influence the salience of a mastery-oriented climate and, in so doing, optimize a child's motivation in physical education.

Achievement↗
PubMed2002

Achievement goals, perceived motivational climate, and students' self-reported mastery behaviors.

Achievement goals and perceived motivational climate are two important constructs in achievement goal theory, and they play critical roles in student motivation and behavior Traditionally, these two constructs have been examined separately. The present study examined relationships between the two constructs and students' self-reported mastery behaviors as well as age-related differences. Three hundred eight students in 4th, 8th, and 11th grades completed questionnaires assessing their achievement goals, perceived motivational climate, and perceptions of their mastery behaviors. Results indicated that achievement goals and perceived motivational climate were related to students' self-reported mastery behaviors. However, the relations varied depending on the students' ages. The older students, compared to the younger ones, appeared to be inclined more toward ego orientation and the ego-involved climate. A multiple achievement goals perspective is recommended for future research on relationships among achievement goals, perceived motivational climate and achievement-related cognitions, and behaviors in physical education.

Achievement↗
PubMed2003

Physical activity and situational motivation in physical education: influence of the motivational climate and perceived ability.

The influence of perceptions of the motivational climate and perceived ability on situational motivation and the physical activity behavior of 213 male and 229 female adolescent physical education students (M age = 12.56 years; SD = 0.96) was examined over a 3-day period. A significant age by gender interaction emerged, with physical activity declining from the sixth to eighth grade. The decline was more pronounced among female than male students. Perceptions of a mastery climate were strongly related to more self-determined forms of situational motivation. In contrast, perceptions of a performance climate were strongly related to less self-determined forms of situational motivation. Results of a hierarchical regression analysis revealed gender, perceived ability, and perceptions of a mastery climate to explain a significant amount of variance in physical activity. These findings suggest that promoting a mastery oriented motivational climate in physical education will foster self-determined situational motivation and physical activity.

Adolescent↗
PubMed2002

Classroom climate and the mental health of primary school children.

This study was carried out to examine associations between classroom climate and pupils' mental health in primary school, and whether pupils who had emotional and behavioural problems in the second grade are more vulnerable to the effects of a poor classroom climate 4 years later. The study was carried out by means of questionnaires to teachers. The students (n = 861) were surveyed in the second (aged 8 years, Time 1) and sixth grade (aged 12 years, Time 2). The Rutter Teacher Questionnaire (RB2) at Time 1 and the Teacher Report Form (TRF) at Time 2 were used to measure internalizing, externalizing and total problem scores. Classroom climate was measured using a composite variable at Time 2. The results show associations between poor sixth-grade classroom climate and an increase in emotional and behavioural problems in both boys and girls. In addition, the girls who were overall poorly adjusted, particularly those who had externalizing problems in the second grade, were especially vulnerable to a poor classroom climate in the sixth grade.

Child↗
PubMed2026

Climate Gradients and Habitat Discontinuity Structure Genetic Variation in a Spring-Specialist Plant.

BACKGROUND AND AIMS: Groundwater-dependent ecosystems support disproportionate biodiversity in arid regions, yet the population genetics of spring-specialist plants remains poorly understood. Here, we present the first species-wide genetic dataset for crimson monkeyflower (Mimulus verbenaceus, Phrymaceae), a spring-specialist plant distributed in seeps, springs, and associated riparian areas across desert regions of North America. We aim to relate landscape features and climate gradients to the spatial genetic structuring within this system. METHODS: Using genome-wide reduced representation sequencing data consisting of 10,760 SNPs from 175 individuals across 17 populations, we characterized the patterns of genetic differentiation and diversity. Population structure was assessed using ADMIXTURE and Principal Component Analysis. We examined the contributions of climate to range-wide genetic variation in crimson monkeyflower using redundancy analysis. KEY RESULTS: Patterns of genetic differentiation were more consistent with those of spring-specialist animal taxa than those of upland plants or generalist riparian plants. We found strong population structure at both broad regional scales and at fine local scales. While geographic and spatial structuring was a primary driver of genetic structure across all scales, riparian connectivity influenced local patterns of diversity, and adaptation to local climatic variation was more influential at regional scales, with temperature, relative humidity, and a monsoon-driven climate gradient contributing to genetic differentiation. CONCLUSIONS: Our findings highlight the distinctive association with isolated perennial groundwater sources, as well as climate gradients, with genetic variation in this spring-specialist plant. These findings suggest that spring-specialist plants deserve special consideration in ecological theory, management, and conservation.

Mimulus↗
PubMed2026

Population and landscape genomics provide insights into the adaptive genetic variation and future climate-induced vulnerability of the endangered tree species Phoebe bournei.

Elucidating the genomic underpinnings of adaptive variation is highly important for the conservation, landscape application, and management of ornamental trees against the backdrop of global climate change. However, research on the genetic mechanisms underlying climate adaptation in Phoebe bournei-a near-threatened subtropical tree species endemic to China, which is endowed with exceptionally high ornamental and ecological value-remains scarce. Whole-genome resequencing was conducted on 362 individuals from 27 natural populations across the geographical range of the species. Genome-environment association analyses were employed to identify 1556 climate-associated variants and 167 candidate genes associated with temperature and precipitation variables. Through functional annotation and expression profiling, pivotal genes, including TRX-M4 and FBD1, were identified as integral to drought and heat stress responses, with adaptive alleles displaying distinct geographic frequency distributions and significant phenotypic differentiation. Divergent evolutionary trajectories were deduced among populations, with southeastern populations distinguished by elevated genetic diversity and strong signatures of local adaptation. Nevertheless, projections derived from the Risk of Non-Adaptedness and gradient forest models suggest that these southeastern populations will face substantial genomic offset under future climate scenarios, signaling heightened vulnerability and the need for prioritized conservation and management. This study provides the first genome-wide perspective into the adaptive evolution of P. bournei and offers a robust foundation for its conservation and climate-resilient management.

Journal Article↗