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An examination of multiple goals in children's physical education: motivational effects of goal profiles and the role of perceived climate in multiple goal development.

In this paper, I present data from two studies that sought to examine multiple achievement goals in the context of children's physical education (PE). Study 1 examined the links that multiple-goal profiles (i.e. mastery/performance-approach/performance-avoidance goals) for PE had with self-determined motivation, affective patterns and levels of extracurricular sporting activity in a sample of 193 Year 7 pupils. Results suggested that children endorsing high mastery/high performance-approach/high performance-avoidance, high mastery/high performance-approach/low performance-avoidance, or high mastery/ low performance-approach/low performance-avoidance profiles typically exhibited the most adaptive motivational responses. In contrast, children endorsing a low mastery/high performance-approach/high performance-avoidance profile typically experienced more maladaptive motivational outcomes. Study 2 examined the development of multiple achievement goals over two terms of PE in conjunction with retrospective perceptions of the motivational climate in the sample. The results of analysis of variance suggested that children exposed to a consistent high mastery/low performance climate experienced decreased performance-avoidance goals and maintained high levels of mastery goals for PE. In contrast, children exposed to a consistent low mastery/high performance climate experienced increased performance-avoidance goals and decreased mastery goals for PE.

Achievement↗

The progressive impact of psychological climate: a prognosis of health care providers' subjective powerlessness in reform legislation.

This study explores the impact of psychological climate variables on the perceived powerlessness of health care providers with regard to their contribution in reform initiatives. It is proposed that perceptions of powerlessness in intra-organizational settings can and do extend to subjective powerlessness in the socio-political arena. A conceptual framework for the theoretical arguments is provided. The hypotheses were tested on survey data from health care providers employed in a major US primary metropolitan statistical area. Several highly significant relationships were observed. Since the actions of health care administrators are primarily responsible for shaping their institutions' psychological climate, recommendations regarding how administrators can foster psychological climates that induce more provider involvement in reform are offered.

Data Collection↗

Family relations, family climate and sexual abuse.

In Europe, 10-20% of all women and 3-10% of all men have experienced sexual abuse before the age of 18, according to surveys. Psychosocial problems are often seen as both short- and long-term consequences of such abuse. Family dysfunction may be seen as both a risk factor for abuse and a result of the disclosure of abuse. The aim of this research was to study how adolescents and adults, sexually abused during their childhood, experienced their family life and family climate in their family of origin. A clinical sample of 18 adolescent girls and 20 adult women comprised the study group. The methods used were a semi-structured interview and the questionnaire Family Climate Test. The majority of the participants kept quiet about the abuse during their childhood. The abuse took place for an average of 2.5 years among the adolescents and 6 years in the adult group. Secrecy, isolation and family problems were typical attributes in the interviews. The majority of both adolescents and women described their relationships in the family of origin as deviant or interrupted, with a reversed (negative) pattern on the Family Climate Test. This meant a low level of closeness and a high level of distance in the families combined with a low level of spontaneity and a high level of chaos. The study, even if relatively small and based on clinical cases, gives support to earlier research, which shows that sexual abuse in general, but especially intra-familial sexual abuse, is associated with family dysfunction.

Adolescent↗

Safety climate in Finnish- and Swedish-speaking companies.

The aim of this study was to compare assessments made by Finnish- and Swedish-speaking workers in Finland about the safety climate in their companies, because an earlier study showed that the accident frequency of Swedish-speaking workers was one third lower than that of Finnish-speaking workers. 148 Finnish-speaking and 138 Swedish-speaking workers from 14 small and medium-sized companies participated in this study. They filled out a Finnish safety climate questionnaire, the reliability of which was above the acceptable level. There were no differences between the language groups in the total variables of safety climate and safety action. Based on the differences in single items, we interpreted that Swedish-speaking workers stressed collective safety more, whereas Finnish-speaking workers put more emphasis on their personal responsibility for safety.

Accidents, Occupational↗

Team types, perceived efficiency and team climate in Swedish cross-professional teamwork.

This paper aims to identify the dominant types of team organization in cross-professional Swedish human service organizations and the relationship between team type and perceived efficiency as well as team climate as an aspect of work satisfaction. A questionnaire was responded to by 337 individual professionals from 59 teams, mainly from psychiatric care (50.7%) but also from social, neuropaediatric and vocational (re)habilitation, school health care and the occupational health service. The interprofessional model of team organization was the most frequent (62%), followed by the transprofessional (33%), and the multiprofessional team, (5%). A moderate positive correlation was found between team type and perceived efficiency as well as team climate. The greater the interdependence and the closer the co-operation, the higher the efficiency and the better the climate. No differences were found between professions or organizational domiciles with respect to team type. This paper suggests (1) a more consistent vocabulary with 'cross-professional' as the generic term covering different team types and (2) that a contingency approach to teamwork is tested in future research.

Adult↗

Mitigation of residential formaldehyde contamination by indoor climate control.

The effectiveness of indoor climate as a mitigation measure for indoor formaldehyde contamination was studied in a mobile home. The effects of nine indoor climate regimes on formaldehyde levels were evaluated for the temperature and humidity ranges of 20 degrees C to 30 degrees C and 30% RH to 70% RH. Formaldehyde levels at the lowest combination of temperature and relative humidity (20 degrees C, 30% RH) were only 20% of those measured at the highest combination of temperature and relative humidity (30 degrees C, 70% RH) evaluated. Reducing temperature alone (from 30 degrees C to 20 degrees C) was shown to result in an approximate 70% reduction in formaldehyde levels. Reducing relative humidity alone (from 70% to 30%) resulted in an approximate 40% reduction in formaldehyde levels. A high linear correlation was observed between formaldehyde levels and temperature and between formaldehyde levels and relative humidity. Analysis of energy consumption and associated costs indicated that temperature reduction from 25 degrees C to 20 degrees C during the cooling season would increase energy usage costs by about 20%; temperature reduction in the heating season would result in both reduced formaldehyde levels and reduced energy costs. Although effective, humidity control--particularly to 30% under summertime conditions--appears to be prohibitively costly. The relationship between temperature and formaldehyde levels suggests that climate control also may be appropriate for reducing indoor levels of other continuously generated contaminants.

Environmental Exposure↗

Morphology and Stomatal Function of Douglas Fir Needles Exposed to Climate Change: Elevated CO2 and Temperature.

Climate change may have an impact on the productivity of conifer trees by influencing the morphology (size and surface characteristics) and function (capacity for gas exchange) of conifer needles. In order to test the responses of needles to climatic variables, Douglas fir (Pseudotsuga menziesii [Mirb.] Franco), saplings were grown in sunlit controlled environment chambers at ambient or elevated (+200 parts per million above ambient) CO2 and at ambient or elevated temperature (+4 degrees C above ambient). Needle characteristics, including length, width, area, stomatal density (stomata per mm2), percentage of stomatal occlusion, and the morphology of epicuticular wax, were evaluated. Needle function was evaluated as stomatal conductance to water vapor and transpiration. Needle length increased significantly with elevated temperature but not with elevated CO2. Neither elevated CO2 nor elevated temperature affected stomatal density or stomatal number in these hypostomatous needles. Epicuticular wax was less finely granular at elevated than at ambient temperature and was similar in appearance at elevated and ambient CO2. Stomatal conductance and transpiration increased with elevated temperature and associated increased vapor pressure deficit; however, neither conductance nor transpiration was affected by elevated CO2. These results indicate that simulated climate change influences Douglas fir needle structure and function.

Journal Article↗

Climate change, ozone depletion and the impact on ultraviolet exposure of human skin.

For 30 years there has been concern that anthropogenic damage to the Earth's stratospheric ozone layer will lead to an increase of solar ultraviolet (UV) radiation reaching the Earth's surface, with a consequent adverse impact on human health, especially to the skin. More recently, there has been an increased awareness of the interactions between ozone depletion and climate change (global warming), which could also impact on human exposure to terrestrial UV. The most serious effect of changing UV exposure of human skin is the potential rise in incidence of skin cancers. Risk estimates of this disease associated with ozone depletion suggest that an additional peak incidence of 5000 cases of skin cancer per year in the UK would occur around the mid-part of this century. Climate change, which is predicted to lead to an increased frequency of extreme temperature events and high summer temperatures, will become more frequent in the UK. This could impact on human UV exposure by encouraging people to spend more time in the sun. Whilst future social trends remain uncertain, it is likely that over this century behaviour associated with climate change, rather than ozone depletion, will be the largest determinant of sun exposure, and consequent impact on skin cancer, of the UK population.

Atmosphere↗

Correlations between stable carbon-isotope abundance and hydraulic conductivity in Douglas-fir across a climate gradient in Oregon, USA.

Stomatal conductance in trees is related to both foliar carbon-isotope abundance and stem hydraulic properties. By combining these relationships, I hypothesized that carbon-isotope abundance in foliage should vary with limitations to water movement through supporting branches. I sampled Douglas-fir branches (Pseudotsuga menziesii (Mirb.) Franco) from six sites across a climate gradient in Oregon, USA for foliar carbon-isotope abundance and stem hydraulic properties. I used a forest growth model to quantify climate-induced stomatal limitations, expressed as reduced potential transpiration, across the gradient. Foliar stable carbon-isotope abundance showed a strong inverse relationship with branch specific conductivity (hydraulic conductivity per unit functional sapwood area) and leaf-specific conductivity (hydraulic conductivity per unit leaf area). Foliar stable carbon-isotope abundance was correlated with modeled reductions in potential transpiration; however, the inclusion of leaf-specific conductivity improved the correlation by more than 30%. Combined, leaf-specific conductivity and climate-induced stomatal constraints explained 84% of the variation in foliar isotope abundance in 1994 foliage. This model was confirmed on foliage classes 1990-1993.

Journal Article↗

Forest growth and species distribution in a changing climate.

Climate change has many potential effects on plants, some detrimental to growth, others beneficial. Increasing CO(2) concentration can increase photosynthetic rates, with the greatest increases likely to be in C(3) plants growing in warm dry conditions. Increasing temperature directly affects plant growth through effects on photosynthetic and respiration rates. However, plants have a considerable ability to adapt to changing conditions and can tolerate extremely high temperatures, provided that adequate water is available. Increasing temperature may increase vapor pressure deficits of the air, and thereby increase transpiration rates from most plant canopies. Effects are likely to vary among plant communities, with forests generally experiencing greater increases in transpiration rates than grasslands. These increases in transpiration are likely to be reduced by stomatal closure in response to increasing CO(2) concentration. In many areas, precipitation will probably increase with global warming; however, these increases may be insufficient to meet the increased transpirational demand by plant canopies. Increasing temperature is likely to increase soil organic matter decomposition rates so that nutrients may be more readily mineralized and made available to plants. In highly fertile systems, this could lead to nutrient losses through leaching. For different combinations of increases in temperature and CO(2) concentration, and for systems primarily affected by water or nutrient limitations, different overall effects on plant productivity can be expected. Responses will be negative in some circumstances and positive in others, but on the whole, catastrophic changes to forest growth seem unlikely under most conditions. In contrast,ecological consequences of climate change are potentially more serious. The distribution of many species tends to be limited to a narrow range of environmental conditions. Climate conditions over much of a species' current natural range may therefore become unsuitable, leading to significant decline of forests or of particular species within forests.

Journal Article↗

Climate change and forests.

Factors governing long-term change in global temperature are reviewed. The magnitude and rate of change in global temperature resulting from current increases in the concentration of atmospheric greenhouse gases are considered in relation to their impact on forests. Movement in forest zone boundaries at a rate of 2.5 km year(-1) are possible, which is nearly ten times the rate forests have been known to move by natural reproduction. Climate models indicate that increased global temperature will affect rainfall distribution, lead to more frequent and more severe storms and increase climatic variability. Consequences for the world's forests include increased frequencies of fire and blow-down, and wide-spread decline. Increased atmospheric CO(2) concentrations may increase forest growth where the effect is not offset by reduced precipitation, but the overall effect of anticipated changes in global climate is likely to be widespread loss of forests.

Journal Article↗

IAEA/EPA international climatic test program for integrating radon detectors. International Atomic Energy Agency/Environmental Protection Agency.

As an element of the joint IAEA-EPA International Radon Metrology Evaluation Program, a climatic test of long-term integrating radon detectors was conducted at the U.S. EPA Radiation and Indoor Environments National Laboratory. The objective of this study was to test the performance of commonly used commercially available long-term 222Rn detector systems under extreme climatological conditions using filtered polycarbonate CR-39 plastic analyzed by the manufacturer using the track-etch method, unfiltered LR-115 film analyzed by the manufacturer, and Teflon based electrets analyzed in the field by EPA using the manufacturer's equipment. The EPA environmental radon chambers were used to expose detectors to extreme cold and dry (less than 4.0 degrees C air temperature and 25% relative humidity) and hot and humid (greater than 35 degrees C air temperature and 85% relative humidity) climatic conditions. During phase I detectors were exposed to low temperatures and low humidities, and during phase II detectors were exposed to high temperatures and high humidities. Typical indoor equilibrium fractions (near 50%) and radon concentrations of about 150 Bq m(-3) were maintained for each phase, which lasted 90 d. The results indicated that the optimal detector for extreme climatic conditions is dependent on the relative importance of bias and precision. Overall, however, the filtered track-etch type detector produced the most reliable results under the extreme conditions.

Air Microbiology↗

Faculty-student interactions and the student-perceived climate for caring.

The identification of caring as a core value for nursing practice elaborates the need to investigate the educational processes through which caring can be learned by those who will assume primary caregiver roles. Using qualitative inquiry, this study was conducted to describe a climate for caring as perceived by 10 junior nursing students and to identify faculty behaviors and faculty-student interactional episodes through which these students experience a climate for caring. Consistent with one researcher's conceptualization of the components of a moral education, the findings from this study suggest that modeling, dialogue, practice, and confirmation are the faculty-student interactional processes through which these students experienced a climate for caring.

Adult↗

The Hospital Ethical Climate Survey in Turkey.

This study was planned to assess the validity and reliability of the Hospital Ethical Climate Survey (Olson, 1995) in Turkey and to determine how nurses perceive the ethical climate of their working environment. The study was conducted on 276 nurses working in university, social insurance, state, and private hospitals. Five subfactors measured: assessment of the relationships between unit/department, manager, hospital, colleague, and doctors based on ethical climate. Significant differences were found, showing that the type of hospital greatly affected the level of positive perception as did the age of the nurse and the unit on which they worked.

Adult↗

Ethical climate in nursing practice: the leader's role.

Clarity in an organization's mission, vision, and values is key to effective management in today's complex healthcare work environment. To clearly articulate mission, vision, and values, employees must experience consistency between what is espoused and what is lived. The purpose of this article is to discuss the nurse leader's role in ensuring congruence between caring missions and caring practices. Ethical principles are discussed as the foundation necessary for creating an ethical climate for nursing practice. Components of ethical climate are presented and strategies to create a positive ethical climate for nursing practice are provided.

Codes of Ethics↗

Nurse-physician perspectives on the care of dying patients in intensive care units: collaboration, moral distress, and ethical climate.

OBJECTIVE: To explore registered nurses' and attending physicians' perspectives on caring for dying patients in intensive care units (ICUs), with particular attention to the relationships among moral distress, ethical climate, physician/nurse collaboration, and satisfaction with quality of care. DESIGN: Descriptive pilot study using a survey design. SETTING: Fourteen ICUs in two institutions in different regions of Virginia. SUBJECTS: Twenty-nine attending physicians who admitted patients to the ICUs and 196 registered nurses engaged in direct patient care. INTERVENTIONS: Survey questionnaire. MEASUREMENTS AND MAIN RESULTS: At the first site, registered nurses reported lower collaboration (p<.001), higher moral distress (p<.001), a more negative ethical environment (p<.001), and less satisfaction with quality of care (p=.005) than did attending physicians. The highest moral distress situations for both registered nurses and physicians involved those situations in which caregivers felt pressured to continue unwarranted aggressive treatment. Nurses perceived distressing situations occurring more frequently than did physicians. At the second site, 45% of the registered nurses surveyed reported having left or considered leaving a position because of moral distress. For physicians, collaboration related to satisfaction with quality of care (p<.001) and ethical environment (p=.004); for nurses, collaboration was related to satisfaction (p<.001) and ethical climate (p<.001) at both sites and negatively related to moral distress at site 2 (p=.05). Overall, registered nurses with higher moral distress scores had lower satisfaction with quality of care (p<.001), lower perception of ethical environment (p<.001), and lower perception of collaboration (p<.001). CONCLUSIONS: Registered nurses experienced more moral distress and lower collaboration than physicians, they perceived their ethical environment as more negative, and they were less satisfied with the quality of care provided on their units than were physicians. Provider assessments of quality of care were strongly related to perception of collaboration. Improving the ethical climate in ICUs through explicit discussions of moral distress, recognition of differences in nurse/physician values, and improving collaboration may mitigate frustration arising from differences in perspective.

Adult↗

Fragile transmission cycles of tick-borne encephalitis virus may be disrupted by predicted climate change.

Repeated predictions that vector-borne disease prevalence will increase with global warming are usually based on univariate models. To accommodate the full range of constraints, the present-day distribution of tick-borne encephalitis virus (TBEv) was matched statistically to current climatic variables, to provide a multivariate description of present-day areas of disease risk. This was then applied to outputs of a general circulation model that predicts how climatic variables may change in the future, and future distributions of TBEv were predicted for them. The expected summer rise in temperature and decrease in moisture appears to drive the distribution of TBEv into higher-latitude and higher-altitude regions progressively through the 2020s, 2050s and 2080s. The final toe-hold in the 2080s may be confined to a small part of Scandinavia, including new foci in southern Finland. The reason for this apparent contraction of the range of TBEv is that its transmission cycles depend on a particular pattern of tick seasonal dynamics, which may be disrupted by climate change. The observed marked increase in incidence of tick-borne encephalitis in most parts of Europe since 1993 may be due to non-biological causes, such as political and sociological changes.

Animals↗

Developmental response to cold stress in cranial morphology of Rattus: implications for the interpretation of climatic adaptation in fossil hominins.

Adaptation to climate occupies a central position in biological anthropology. The demonstrable relationship between temperature and morphology in extant primates (including humans) forms the basis of the interpretation of the Pleistocene hominin Homo neanderthalensis as a cold-adapted species. There are contradictory signals, however, in the pattern of primate craniofacial changes associated with climatic conditions. To determine the direction and extent of craniofacial change associated with temperature, and to understand the proximate mechanisms underlying cold adaptations in vertebrates in general, dry crania from previous experiments on cold- and warm-reared rats were investigated using computed tomography scanning and three-dimensional digitization of cranial landmarks. Aspects of internal and external cranial morphology were compared using standard statistical and geometric morphometric techniques. The results suggest that the developmental response to cold stress produces subtle but significant changes in facial shape, and a relative decrease in the volume of the maxillary sinuses (and nasal cavity), both of which are independent of the size of the skull or postcranium. These changes are consistent with comparative studies of temperate climate primates, but contradict previous interpretations of cranial morphology of Pleistocene Hominini.

Adaptation, Biological↗