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[Effects of genotype and environment on protein and starch quality of wheat grain].

A field trial with 10 winter wheat varieties was conducted at 9 locations under different environmental conditions in Shandong Province to study the effects of wheat genotype and environment on the main qualitative characters of wheat grain. The results indicated that variety and environment had a marked influence on the main qualitative indexes of wheat grain, and the difference of environmental conditions was the main factor affecting the protein and gluten contents of the grain. The variation of farinogramme indexes was mainly due to the interaction between variety and environment. As for the starch content, peak viscosity, and breakdown of the grain, interactive effect was stronger than independent one, and the effect of variety was stronger than that of environment.

Environment↗

Pre-test and post-test evaluation of students' perceptions of a collaborative clinical education model on the learning environment.

OBJECTIVE: This study investigated the impact of a collaborative clinical education model on students' perception of the psycho-social learning environment. DESIGN: A pre-test and post-test quasi experimental design. SETTING: A tertiary referral centre. SUBJECTS: Second and third year undergraduate nursing students were asked to rate their perceptions of the psycho-social learning environment at the completion of the clinical practicum. TOOL: The tool used to measure psycho-social perceptions of the clinical learning environment was the Clinical Learning Environment Inventory previously validated in Australian health care contexts. INTERVENTION: A collaborative arrangement with the university and ward staff where eight students are placed on a ward and a ward staff member is paid by the university to be 'off-line' from a clinical workload to supervise the students. This is in contrast to the standard facilitation model where students are placed with registered nurses in different localities under the supervision of a 'roving' registered nurse paid by the university. RESULTS: No significant differences were found in pre-test mean scores when comparing wards. Significant differences in post-test scores for the intervention group were identified in the sub scales of Student Involvement, Satisfaction, Personalisation and Task Orientation. CONCLUSIONS: The adoption of a collaborative clinical education model where students are integrated into the ward team and the team is responsible for student learning can positively enhance capacity for student learning during their clinical practicum.

Cooperative Behavior↗

Medication safety within the perioperative environment.

With the widespread patient safety movement comes an increased public awareness of the risks inherent within the health care setting. More specifically, the highly publicized medication error cases that hit the media demonstrate the effect mediation errors have on patient safety within the perioperative environment. This awareness, however, has triggered limited research across the continuum of care within this complex environment. A current review of the state of the science related to medication safety within this setting reveals research primarily focused on the anesthesia domain of practice. Although application to the perioperative environment can be extrapolated from this research, there is a notable lack of nursing-initiated research that focuses on improved systems or processes related to medication safety within the perioperative continuum of care. This knowledge gap in the literature presents an excellent opportunity for nursing to grow a research program to improve medication safety within the perioperative environment in support of evidence-based practice.

Adverse Drug Reaction Reporting Systems↗

Impact of wildlife on the environment.

Wildlife has a considerable and highly varied impact on the environment. Furthermore, in transforming the environment, man has indirectly altered some of the many links which associate animals with the environment. Food chains are an essential link, for they associate animals to plants (in the case of depredators such as herbivores, fruit- and grain-eaters) and to other animals (in the case of predators). Food chains determine the equilibrium of populations in their habitat. The various roles and activity of animals within different ecosystems are described. Birds are discussed at some length, given their role in pollination and the dissemination of plants, and also their potential for acting as reservoirs or carriers of pathogens. Mention is also made of disturbances to the environment resulting from the introduction, by humans, of various species which can threaten the ecological balance of the host region. These topics form a basis for further reflection on the conservation of particularly endangered natural resources.

Animals↗

[Person-environment correspondence and adjustment to conviction. Using a diary method].

Thirty inmates of an Austrian (high-security) prison for men, ranging from those with sentences from two years to life, have recorded in the form of a structured diary (time sampling, approx. four times a day) for the period of thirty days whether they were feeling good or bad, how they would describe their mood, where they were at that moment, what they where currently occupying themselves with and who else was present. Data regarding personality characteristics, demographic data and descriptions of their physical and social surroundings were collected separately. The hypothesis is formulated here that the experience of a prison sentence, i.e. the coping strategies for dealing with the various stresses arising from the complete social control and the diverse deprivations within the "total institution" of a prison, is determined by personality characteristics (extraversion, neuroticism) and by the interaction between individual needs and that which the environment offers to the individual. The results show that the emotional condition in confinement can be better explained by factors of person-environment interaction than merely by personality or by environment factors alone. The results are discussed in the context of the motivational person-environment-fit model on the one hand, and with regard to the task of resocialisation on the part of the prison on the other hand.

Activities of Daily Living↗

[Environment and occurrence of epidemics].

Epidemic diseases are defined as the temporary accumulation of dangerous infections diseases in certain areas. They are based on the principles of monocausality of Henle and Koch and represent the most important group of monocausal infectious diseases. Tight ecological relations exist between epidemic diseases and environment. The ecosystem encloses all living organisms as well as the inanimate environment (e.g. soil, water, air, waste). Some chains of infections are demonstrated with American equine encephalitis, rabies, Aujeszky's disease, salmonellosis and so-called soil-born epidemic diseases as examples. Any change of the environment causes enduring effects on the development and progression of epidemic diseases. Many epidemic diseases correlate with certain geographical zones. The variation of climate for instance led to an alteration of the occurrence of epidemic diseases caused by streptococci and staphylococci. A further evidence for the relation of environment and occurrence of epidemic diseases are the seasonal and secular rhythmics in the progress of epidemic diseases. On the basic of new techniques (finger-printing, hybridisation, sequence analysis) the origin of new types of infectious diseases such as American equine encephalitis and infections with Parvo- and Corona viruses can be explained. Finally medicine has to face this thesis: In contrast to the Darwinian theory the recombination of two different infectious agents in a common host may cause evolutionary jumps.

Animals↗

Strategic change in hospitals: an examination of the response of the acute care hospital to the turbulent environment of the 1980s.

Changes in strategies of hospitals responding to the turbulent health care environment of the 1980s are examined both in the aggregate and from the perspective of the individual hospital. The Miles and Snow typology is used to determine strategy type. Both investor-owned and not-for-profit hospitals were well represented in the broad mix of hospital types sampled. In addition, freestanding hospitals and members of multihospital systems were present in the sample. Last, hospitals of all sizes were included. Strategic change was evaluated by classifying hospitals by strategy type in each of two consecutive five-year time periods (1976 through 1980 and 1981 through 1985). Changes in reimbursement policies, the emergence of new technologies, changing consumer expectations, and new sources of competition made the environment for hospitals progressively more turbulent in the latter period and provided an opportune setting to evaluate strategic change. Results showed that a significant number of hospitals did change strategy as the environment changed, and in the direction anticipated. Logistic regression was used to determine whether prior strategy, type of ownership, system membership, or size would predict which hospitals would change strategy as the environment changed: only prior strategy was found to be a predictor of strategy change.

Economic Competition↗

Infant stimulation curriculum for infants with cerebral palsy: effects on infant temperament, parent-infant interaction, and home environment.

To assess the effects of intervention in cerebral palsy, 48 infants 12 to 19 months of age, with mild to severe spastic diplegia, were randomly assigned to receive either 6 months of infant stimulation followed by 6 months of physical therapy (test group) or 12 months of neurodevelopmental physical therapy (contrast group). The infant stimulation protocol consisted of cognitive, motor, sensory, and language activities. Outcome was assessed after 12 months by using Carey Infant Temperament Questionnaire subscores (activity, rhythmicity, adaptability, approach, threshold, intensity, mood, distractibility, and persistence); Roth Mother-Child Relationship Evaluation subscores (acceptance, overprotection, overindulgence, rejection); and Home Observation for Measurement of the Environment subscores (maternal responsiveness, avoidance of restriction and punishment, organization of environment, play materials, maternal involvement, and variety of daily stimulation). Motor and cognitive outcomes suggesting advantage for the test group have been reported previously. After 12 months of intervention, mothers with infants in the contrast group showed a greater improvement in emotional and verbal responsiveness as measured by the Home Observation for Measurement of the Environment (mean score change in control group = 1.2, test group = 0.3 P less than .04). None of the 19 other measures differed significantly between treatment groups in change from baseline. This study demonstrates no short-term systematic effect on temperament, maternal-infant interaction, or home environment attributable to the inclusion of an infant stimulation curriculum in an intervention program for infants with spastic diplegia. It suggests that motor and cognitive advantages associated with infant stimulation are not mediated by measurable changes in the psychosocial variables studied.

Cerebral Palsy↗

The environment and quality of care in long-term care institutions.

It is alarming that a basic need such as fluids and nutrition can be so neglected when caring for elderly patients. Dennis & Prescott (1985) found when asking nurses around the country to describe good nursing practice that dietary concerns were not commonly identified as an activity comprising good nursing. Kayser-Jones (1981) found, when comparing the quality of care in a Scottish and an American institution, that the greatest difference between the two facilities was the environment. In the Scottish institution, the environment was patient centered while, in the American institution, little attempt was made to consider the needs of the elderly residents (Andreasen, 1985). To provide quality care to the elderly, the nurse must be involved in all aspects of the environment--the physical, the organizational, the personal, and the psychosocial milieu. While all components are important, the nurse's involvement in the organizational aspects of long-term care facilities is essential for quality nursing care. Florence Nightingale emphasized that the nature of the hospital authority (e.g., policy issues) was critical. "For unless an understanding is come to on this point, the very existence of good nursing is an impossibility" (Nightingale, 1859, 1980). There are many environmental factors that will promote well being for the institutionalized elderly, such as color, lighting, the physical arrangement of furniture, personal belongings, the administrative philosophy, and the absence of irritating noises. Nothing, however, is more important than the characteristics of the nursing staff. Human relationships--the bond between nurse and patient--are more important than the physical surroundings. Nurses must be involved in planning an environment that will promote and enhance the nurse-patient relationship. Furthermore, we must emphasize the value of the nurse-patient contact and be involved in the design of facilities and the development of policies that will increase this contact and promote the development and maintenance of a strong nurse-patient bond.

Aged↗

Quality of the home environment of toddlers: a validation study of the home inventory.

The Home Observation for Measurement of the Environment (HOME) Inventory is introduced in this study to examine the home environments of children (three to four and a half years) in Singapore. The Inventory comprises eight subscales and a total of 54 items with a higher score indicating an environment which provides more possibilities for development and growth. Various statistical tests were carried out to determine the validity of the Inventory for use in the local context. These showed the Inventory to be internally consistent and to possess construct validity in particular the HOME Inventory had been validated in correlation tests with demographic variables such as social class index (F = 8.01, p less than 0.0001), people to room ratio (r = -0.37, p less than 0.0001) and a measure of IQ (r = 0.0003). Norms for local toddlers were also provided. It was concluded that the Inventory would play a useful role in detecting children who are physically and intellectually less advanced due to a poorer home environment. This finding could possibly be used in an intervention programme in ameliorating these conditions.

Child Care↗

Influences on the home environment of preschool children with early histories of nonorganic failure-to-thrive.

The home environments of 58 children with early histories of nonorganic failure-to-thrive (NOFTT) who received time-limited outreach intervention after hospitalization were assessed from 12 to 36 months of age. The type of outreach intervention did not affect the quality of home environment as assessed by the Home Observation for Measurement of the Environment inventory (HOME). We tested the efficacy of three sets of variables: characteristics of NOFTT (age of onset and duration), nutritional status (weight for height) at time of diagnosis, and family characteristics (maternal IQ and income) in predicting HOME scores at 36 months. Family characteristics (income and maternal IQ) were the only variables to predict HOME scores. HOME scores were less stable than in the standardization sample. A subgroup of NOFTT children (n = 7) whose HOME scores decreased over the 2-year follow-up period were more likely to have subsequent siblings than children whose HOME scores improved over the same time period (n = 11). Findings suggest the need to identify and provide preventive intervention for NOFTT children whose home environments are vulnerable to deterioration following diagnosis.

Child, Preschool↗

Stereotyped behaviour in animals induced by stimulant drugs or by a restricted cage environment: relation to disintegrated behaviour, brain dopamine and psychiatric disease.

Stereotyped behaviour can be produced in animals both by stimulant drugs (amphetamine, methamphetamine, cocaine, etc.) and by a restricted cage environment. Strong evidence indicates that the effect of stimulant drugs is mediated through a primary effect on brain dopamine, and further knowledge is now being acquired through studies on dopamine receptors, tolerance and reverse tolerance to amphetamines and the neural connections of dopaminergic sub-systems with other sub-systems in the brain. The forms of stereotypy induced by a restricted cage environment have been compared with other effects of this type of environment on behaviour and general health. This has led to a hypothesis that stereotyped behaviour may function as a survival (or defence) strategy in an unfavourable milieu. Some evidence indicates that brain dopamine is also involved in the mediation of stereotyped behaviour induced by the environment. The relevance of these results in clinical psychiatry is discussed. Stereotypy (and related disintegrated behaviour) is a well known feature of several mental diseases.

Amphetamines↗

Victims of Alzheimer's disease and the environment.

The environment plays an essential role in the functioning and care of older persons, particularly those with Alzheimer's disease. This article describes the characteristics of the environment that affect the functioning of persons with Alzheimer's disease and the interaction between the person and environment. Assessment and interventions based on environmental characteristics and person-environment interaction are identified.

Aged↗

Adolescents' perception of aspects of the home environment and their attitudes toward parents, self, and external authority.

Although there is extensive literature on the home environment as a socializing agent and on the perception of self and others, research relating home environment variables to adolescents' perception of themselves and others is not common. The present study, using a survey of 480 students, attempts to define and relate these two domains. Factor analyses of 16 semantic differential scales generated three dimensions--evaluation, understandability, and potency--for specifying attitudes toward self, parents, and certain external authority figures (teachers and police). In addition, factor analysis of 20 variables relating to adolescents' perception of their home environment suggested five factors: (1) extent of punishment, (2) amount of chores at home, (3) perceived parental control, (4) absence of parents, and (5) parents' attitude toward authority figures. Controlling for sex and age, these home environment factors were found to account for sizable portions of variance in certain components of the person perception domain. Particular relevance for several of these factors are discussed.

Adolescent↗

The effect of environment on tryptophan metabolism "via kynurenine" in oral contraceptives users.

We have studied tryptophan metabolism "via kynurenine" in women who were oral contraceptives users, living in two different egyptian environments: in the city of Alexandria or in a rural area near Tanta and, in comparison, in control groups of women living in the same environments but who were not contraceptives users. In the non contraceptives users of Tanta we have registered a higher elimination of some metabolites (anthranilic acid, kynurenic acid, xanthurenic acid and 3-OH-anthranilic acid) which might be related to the way of life and environment. The pattern of the kynurenine pathway metabolites of the contraceptives users (studied 1, 3 and 12 months after contraceptives administration) shows some differences with respect to the controls, both in the spontaneous elimination and in that after tryptophan load. These differences are especially evident for anthranilic acid glucuronide, kynurenine and kynurenic, anthranilic and xanthurenic acids. Some differences may be observed after 1 month of contraceptives administration. The effect of tryptophan oral load is superimposed on those of environment and contraceptives use; in the spontaneous elimination of tryptophan metabolites an accomodation to the contraceptives administration is evident. The discrepancies between some of our results and those of the literature might be related to the influence of environmental factors and of the way of life.

Aminohippuric Acids↗

Reciprocal relationship between home environment and development of TMR adolescents.

The reciprocal relationship between home environment and social competency of 112 TMR adolescents was examined over a period of 3 years. Assessment of home environment included child-rearing attitudes, educationally relevant stimuli and opportunities available at home, and general psychosocial climate among family members. Measures of social competency included the child's adaptive behavior, psychosocial adjustment, and self-concept. Partial correlation and multiple regression analysis revealed significant bidirectional effects between home environment and psychosocial adjustment of TMR adolescents. The environmental effects on the adolescents appear to be broad and dynamic whereas the adolescents' effects on the home environment appear to be direct and specific.

Adolescent↗

A biometrical analysis of perceptions of family environment: a study of twin and singleton sibling kinships.

Biometrical genetic analysis was applied to sibling and twin kinship data on 2 dimensions of perceived home environment. Correlations on 1 dimension, Restrictiveness-Permissiveness, were equal and significant for all kinships: MZ twins, DZ twins, same-sex siblings, and opposite-sex siblings significant for all 4 kinships: MZ twins, DZ twins, same-sex siblings, and opposite-sex siblings (r greater than .40). An E2-E1 biometrical model fitted Restrictiveness-Permissiveness, implying that treatments common to siblings create agreement about perceived environment. As intrapair differences were the same for all 4 kinships under this model, the equal environments assumption of the twin method was supported. In contrast, the Acceptance-Rejection dimension fitted a G-E1 model that makes the assumption that sibling similarity is the result of genetic factors and postulates an absence of shared environmental influences. This finding suggests that this aspect of home environment may depend as much on the child's inherited traits as on actual treatments and is in accord with the genetic analysis of individual traits in that developmentally effective environmental factors do not appear to be common to siblings.

Environment↗

Social and nonsocial home environments of infants with nonorganic failure-to-thrive.

Nonorganic failure-to-thrive (NOFT) is a clinical syndrome that is poorly understood and inadequately studied. Because empirical data are lacking, an attempt was made to identify differentiating aspects of the mother-infant interaction and environment of infants with NOFT compared with those of matched infants who grew normally. Prospectively, 23 infants who were suffering from NOFT were chosen in a referral clinic. Each infant was matched with a control subject with normal growth by age, sex, and race of the infant and family income, maternal education, and number of people living in the household. An assistant who was unaware of infant growth status visited the homes of these infants within 3 weeks of diagnosis and gathered: the Home Observation for Measurement of the Environment (HOME); the Coddington Life Events Record; and the Index of Parent Attitude Scales. The total HOME Inventory and the subscales entitled Maternal Acceptance of the Child, Organization of the Physical Environment, and Emotional Responsivity were significantly less favorable (P less than .05) in the NOFT group. There were no group differences in the Life Events Record and the Parent Attitudes Scales. A discriminant function analysis correctly placed 32 of the 46 infants into failure-to-thrive and control groups. It is concluded that certain aspects of the home environments of infants with NOFT differ from those of infants of similar socioeconomic status who grow normally.

Adult↗