Estimation of slowly time-varying trend function in long memory regression models

ABSTRACT

We study the asymptotic properties of the least-squares estimator for the trend function of a particular class of locally stationary models, which are defined by considering a smooth variation of the trend function. Additionally, errors are assumed to be realizations from a long-range dependent stationary Gaussian process. Our findings are then illustrated through Monte Carlo simulations.     

Correction to: Comparison of joint control schemes for multivariate normal i.i.d. output

AStA Advances in Statistical Analysis - In the original paper, we incorrectly stated that...     

How Routine Patient‐Centered Monitoring Relates to Therapeutic Gains in Family Therapy: A Single‐Case Study

As routine outcome monitoring systems develop, questions emerge about how therapists incorporate feedback into their practice, and how this relates to therapeutic gains. A case of covert grief was monitored in each session with the Personal Questionnaire and the Helpful Aspects of Therapy instruments. At 4 months follow‐up, the Change Interview was administered. Individualized items facilitated access to the private views and needs of each member, which was useful for case formulation and ongoing personalization of the intervention. Qualitative feedback of treatment experiences helped therapists confirm the impacts of interventions, monitor therapeutic alliance, reformulate clinical hypothesis, and plan sessions. Therapists followed a critical triangulation process to decide the clinical meaning of feedback, according to his/her intervention model, expertise, and case‐specific context.     

Implementing Cognitive Behavioral Intervention for Trauma in Schools (CBITS) with Latino Youth

Objective

Many Latino youth are often unable to access mental health services and support following exposure to traumatic and stressful events. This study assesses the benefits and effectiveness of utilizing Cognitive Behavioral Intervention for Trauma in Schools (CBITS), a school based intervention, with Spanish speaking, Latino youth residing in New Orleans, Louisiana, in effort to address presenting symptoms of trauma and depression.

Method

Twenty three children and adolescents ages 10 to 14, in fifth, sixth and seventh grades, presenting with symptoms of trauma and depression, participated in a 10 week program of CBITS which was primarily conducted in Spanish.

Results

Children who participated in CBITS reported significantly fewer symptoms of trauma and depression following the intervention; however, no differences were noted between genders. Significant differences were observed between older boys and girls (12–14), as they were more likely to report higher levels of exposure to trauma than younger boys and girls (10–11). The effect sizes for the intervention were large.

Conclusions

Findings of this study suggest that CBITS is a practical and effective school based intervention available to mental health providers as a resource to be used with Spanish speaking, Latino youth who have been exposed to different forms of stress and trauma.

     

Study abroad learners’ metalinguistic and sociocultural reflections on short- and long-term international experiences*

English-speaking learners of L2 Spanish who were taking part in a four-week study abroad program in Spain and Japanese-speaking learners of L2 English who were individually studying in year-long abroad experiences participated in the present study. Quantitative and qualitative data from language questionnaires and contact profiles along with open-ended responses revealed details on learners’ engagement with and use of their languages while abroad. We discuss the findings and their implications for programs, educators and learners.     

Confidence intervals for the treatment effect on the treated

The average effect of the treatment on the treated is a quantity of interest in observational studies in which no definite parameter can be used to quantify the treatment effect, such as those where only a random subset of the data obtained by stratification can be used for analysis. Nonparametric confidence intervals for this quantity appear to be known only in the case where the responses to the treatment are binary and the data fall into a single stratum. We propose nonparametric confidence intervals for the average effect of the treatment on the treated in studies involving one or more strata and general numerical responses.     

Manual bamboo cutting tool

The paper presents the development of a cutting tool guide, specifically for the harvest of bamboo. The development was made based on precepts of eco-design and ergonomics, for prioritizing the physical health of the operator and the maintenance of the environment, as well as meet specific requirements of bamboo. The main goal is to spread the use of bamboo as construction material, handicrafts, among others, from a handy, easy assembly and material available tool.