Aspects of soil acidity and their effect on plant growth

The effects of low pH, AI, organic and phenolic acids on the growth of naturally occurring plant species were determined. The amelioration of Al toxicity by Si and organic acids was also investigated. Plants were grown from seeds in nutrient solutions simulating the ionic composition of soil solutions from five soil types ranging from acidic peat to calcareous soil. Soil solutions were extracted and analysed using centrifugation, with and without an immiscible displacent (1,1, I-trichloroethane), at both low (4000 rpm) and high speed (12000 rpm). Races of Holcus lanatus L. and Betula pendula Roth. from acidic soils (FM and SMM) grew better in low pH solutions (pH< 4.0). In acid-sensitive races Ca absorption was inhibited at low pH. Races of B.pendula from strongly to moderately acidic soils (FM, SMM, KP) were AI-tolerant and effectively excluded Al from shoots. Root elongation and leaf expansion were inhibited by all Al concentrations in races from calcareous soils (KR). Low concentrations of Al stimulated growth in some races of B.pendula (2 and 5 mg Al lˉ¹) and Anthoxanthum odoratum L. (1.3 and 2.7 mg Al lˉ¹). Al (25 and 35 mg lˉ¹) inhibited root and shoot growth in H.lanatus. Si (1500 and 2500 µM Si(OH)₄) addition to nutrient solutions alleviated AI-damage and restored nutrient uptake to values similar to those in plants grown with neither Al or Si. The ameliorative effects of Si were possibly achieved through AI/Si co-deposition in the root cell walls and maintenance of Golgi activity. Si at 1500 µM was beneficial but inhibited growth at 2500 µM. Al and hydroxyaluminosilicates at pH 5.6 were not toxic. Formic and tartaric acid ameliorated Al toxicity by reducing its availability. These organic acids on their own stimulated growth in H.lanatus and Deschampsia flexuosa (L.) Trin. Phenolic acids stimulated growth of H.lanatus in acidic solutions (pH 4.0) but not near-neutral solutions, particularly in races from soils high in phenolics. Addition of plant residue to acidic peats increased the growth of races from calcareous and acidic mineral soils

Assessing Physical Activity Determinants in Urban Settings: Comparison of Perceptions and Environmental Audit Findings

Sedentary lifestyles are a contributor to obesity and urban adolescents are less physically active than rural adolescents. Supportive physical activity environments, understood as the geography, observations, and perceptions of features such as recreational facilities, sidewalks, bike lanes, traffic patterns, etc., have been positively associated with adolescent physical activity behaviors within urban settings. As part of a Socio-Ecological intervention to improve physical activity behavior, the Physical Activity Resource Assessment (PARA), the Active Neighborhood Checklist (ANC), and focus groups were used to assess the physical activity influences within an urban middle school and surrounding community. The assessments suggested that lack of parks, lack of walkability in the streets, perceptions of crime, lack of school programs, parental and peer influences were barriers to physical activity opportunities. The ANC, PARA, and focus groups each added valuable information for program planning to improve adolescent physical activity behavior

Introduction to the Edward Elgar Research Handbook on Law and Emotion

The role of emotion in law has long been shrouded in mystery. The legal system is built on assumptions about human behavior, including assumptions about emotion. Thus, unavoidably, understanding emotion is an essential part of building a fairer, more effective system. Yet the emergence and growth of Law and Emotion as a field of study has been slowed by the belief that merely by acknowledging emotion, scholars and jurists would undermine the rule of law. It has been further hampered by the suspicion that emotions are too ephemeral or subjective to be understood in any systematic way. For too long, the result has been a strange, unproductive stasis: a legal system buffeted by emotional influences it refuses to investigate—or even to name

Ignite-Sparking Youth to Create Healthy Communities: A Protocol for a Community-Centered Effort for the Prevention of Adolescent Obesity

Objective: To observe outcomes of a community-centered approach to identifying behavioral and environmental factors that influence overweight and obesity in 6th-8th grade youth in selected lowincome, racial/ethnic communities. Design: Five-year, tri-state, quasi-experimental design with environmental assessments and a questionnaire measuring nutrition and physical activity knowledge and behavior conducted in all communities at pre and post. Setting: Low-income, minority communities targeting 6th-8th grade youth. Participants: One experimental and one control communities will be selected via each state’s Cooperative Extension network through an application and review process with the random selection of participating communities. Intervention(s): Academic institutions will work with community leaders to establish and help support community committees tasked to plan, implement and evaluate one nutrition and one physical activity intervention. Main Outcome Measure(s): Assess environmental changes associated with increased intake and variety of fruits and vegetables; decreased intake of foods high in solid fats and added sugars; and an increase in physical activity among 6th-8th grade youth. Analysis: Baseline and post environmental data and pre and post questionnaire data will be analyzed using t-tests, chi-square, and ANOVA with a p < 0.05 to establish statistical significance

GPs understanding of how depression affects gay and HIV positive men

In contrast to the broad literature on depression in the general population, little is known about the management of depression affecting gay men and HIV-positive men attending general practice clinics. GPs identified a range of features in their experience of managing depression in gay men and in HIV-positive men. Some were common to the care of other groups with depression, but this paper reports on features unique to this patient group. These include capitalizing on the high frequency of contact with this patient group, taking advantage of the specialist multidisciplinary teams who provide support, building upon the unusual willingness of this patient group to take medication, appreciating the central importance to many gay men of sexual functioning, and recreational drug use, responding to social isolation in this patient group and coping with increasing challenges for the HIV general practice workforce

An Examination of Factors Associated With Self-Efficacy for Food Choice and Healthy Eating among Low-Income Adolescents in Three U.S. States

Citation: Muturi NW, Kidd T, Khan T, Kattelmann K, Zies S, Lindshield E and Adhikari K (2016) An Examination of Factors Associated With Self-Efficacy for Food Choice and Healthy Eating among Low-Income Adolescents in Three U.S. States. Front. Commun. 1:6. doi: 10.3389/fcomm.2016.00006Background: Self-efficacy is a crucial component in effective health communication and health promotion interventions and serves as a moderator for behavior change. Although awareness and risk perception are important in the behavior change process, self-efficacy gives people the necessary confidence in their ability to engage in advocated health behaviors. In addressing childhood obesity, self-efficacy plays a crucial role in dietary decisions. Informed by the social cognitive theory, this study examines the personal and environmental factors that determine self-efficacy for healthy food choices and healthy eating among adolescents in low-income communities

Stakeholder views on a recovery-oriented psychiatric rehabilitation art therapy program in a rural Australian mental health service: a qualitative description

BACKGROUND: Recovery-oriented care is a guiding principle for mental health services in Australia, and internationally. Recovery-oriented psychiatric rehabilitation supports people experiencing mental illness to pursue a meaningful life. In Australia, people with unremitting mental illness and psychosocial disability are often detained for months or years in secure extended care facilities. Psychiatric services have struggled to provide rehabilitation options for residents of these facilities. Researchers have argued that art participation can support recovery in inpatient populations. This study addressed the research question: Is there a role for the creative arts in the delivery of recovery-oriented psychiatric rehabilitation for people with enduring mental illness and significant psychosocial disability detained in a secure extended care unit? METHODS: The study had two major aims: to explore the experiences of consumers detained in a rural Australian secure extended care unit of an art therapy project, and to examine the views of nurse managers and an art therapist on recovery-oriented rehabilitation programs with regard to the art therapy project. A qualitative descriptive design guided the study, and a thematic network approach guided data analysis. Ethics approval was granted from the local ethics committee (AU/1/9E5D07). Data were collected from three stakeholders groups. Five consumers participated in a focus group; six managers and the art therapist from the project participated in individual interviews. RESULTS: The findings indicate that consumer participants benefitted from art participation and wanted more access to rehabilitation-focussed programs. Consumer participants identified that art making provided a forum for sharing, self-expression, and relationships that built confidence, absent in the regular rehabilitation program. Nurse manager and the art therapist participants agreed that art participation was a recovery-oriented rehabilitation tool, however, systemic barriers thwarted its provision. CONCLUSIONS: The transformation of mental health services towards a recovery orientation requires commitment from service leaders to provide evidence-based programs. Psychiatric rehabilitation programs based on local need should be included in public mental health services. This study supports the use of art-based rehabilitation programs for people detained in rural secure extended care facilities. Introducing these programs into clinical practice settings can improve the consumer experience and support organisational culture change towards a recovery orientation