Childhood Adversity, Emotional Well-Being, Loneliness, and Optimism: a National Study

Optimism and loneliness, which reflect the expected inverse associations with excess morbidity and mortality, are theoretically and empirically associated with early adversities and offer potential avenues for clinical support. The current study first estimates latent classes of adverse childhood experiences and, second, assesses the role of these experiences on later reports of optimism and loneliness in late adolescence and emerging adulthood, and the role of emotional regulation and common mental disorders. Surveys were conducted in a longitudinal household sample of adolescents recruited in 2013 (average age of 20 at wave 6 follow-ups). The analytic sample included 1177 female and male respondents representative of their age group in the USA at baseline. Latent classes were estimated based on 10 indicators of childhood adversity. Respondents were assigned to classes using posterior probabilities of latent class membership, and class membership was used to predict psychological outcomes in multivariable models. Three latent classes of childhood adversity were identified in the current sample, representing low childhood adversity (81.5%), higher probability of family dysfunction with lower levels of interpersonal abuse (13.4%), and high adversity including higher probabilities of parental discord and violence as well as child abuse (5.1%). Both classes of respondents who faced greater childhood adversity were more likely to report greater loneliness and lower optimism in emerging adulthood. Results were attenuated by measures of emotional well-being. Addressing adolescent loneliness and supporting optimistic outlooks in emerging adulthood are two pathways with potential benefits to reduce mental and physical morbidities.

Controlling Behaviors and Intimate Partner Violence Among Women in Spain: An Examination of Individual, Partner, and Relationship Risk Factors for Physical and Psychological Abuse

Intimate partner violence (IPV) has been linked to a broad range of negative consequences. Thus, early detection and prevention of behaviors associated with IPV is necessary to combat this global public health problem. Controlling behaviors (CBs) within the intimate context, including acts to constrain free mobility or access to friends and relatives, have been characterized as a moderate form of violence and may be an indicator of more severe IPV. Previous research in this field, however, has been primarily conducted in the United States. Accordingly, we lack knowledge of similar findings in other countries to draw more general conclusions about observed associations between these variables, and to identify underlying mechanisms. The current study analyzes the role of control within the Spanish context by examining its correlates, as well as the role and impact of CBs on psychological and physical violence. To achieve these objectives, we use data from the Spanish sample of the Violence Against Women Survey carried out by the European Union Agency for Fundamental Rights (N = 1,520 adult women). The results indicated that young women, women with a previous history of physical/sexual abuse during childhood, and women who have resided in Spain for fewer years are at greater risk of experiencing control within the context of an ongoing relationship. Partner risk factors included frequent episodes of drunkenness and general violence (i.e., violence outside of the home). In addition, control was more frequently reported among couples where the man was older than the woman. As hypothesized, women who reported CB by their partners were more likely to experience psychological and physical violence. These findings emphasize the importance of preventing CBs to avert the most severe forms of violence, and provides relevant information about the groups that could most benefit from these efforts.

The complexities of adolescent dating and sexual relationships: fluidity, meaning(s), and implications for young adults' well-being

The complexity of adolescents' dating and sexual lives is not easily operationalized with simple indicators of dating or sexual activity. While building on prior work that emphasizes the "risky" nature of adolescents' intimate relationships, we assess whether a variety of indicators reflecting the complexity of adolescents' relationships influence early adult well-being (i.e., depressive symptoms, self-esteem, gainful activity, intimate partner violence, and relationship quality). Our analysis of longitudinal data from the Toledo Adolescent Relationships Study showed that the number of adolescent dating and sexual partners does not uniformly influence indicators of young adult well-being, which is at odds with a risk framework. The number of dating partners with whom the individual was sexually active, and not the number of "casual" sex partners, increased the odds of intimate partner violence during young adulthood. Relationship churning and sexual nonexclusivity during adolescence were associated with lower relationship quality during young adulthood. Sexual nonexclusivity during adolescence influenced self-reports of depressive symptoms and lower self-esteem among young adults. Future research should develop more nuanced conceptualizations of adolescent dating and sexual relationships and integrate adolescent dating and sexual experiences into research on early adult well-being.

Instrumentation, control and automation in wastewater--from London 1973 to Narbonne 2013

Key developments of instrumentation, control and automation (ICA) applications in wastewater systems during the past 40 years are highlighted in this paper. From the first ICA conference in 1973 through to today there has been a tremendous increase in the understanding of the processes, instrumentation, computer systems and control theory. However, many developments have not been addressed here, such as sewer control, drinking water treatment and water distribution control. It is hoped that this review can stimulate new attempts to more effectively apply control and automation in water systems in the coming years.

A comparative analysis of different approaches for integrated WWTP modelling

In this paper a comparative analysis of the most important approaches for integrated WWTP modelling is presented. After an introductory presentation of the most important drawbacks and challenges for plant wide modelling, the fundamentals of three different approaches to construct integrated models are presented: "Interfaces" "Standard Supermodel" and "Tailored Supermodel". Afterwards, a comparative analysis of these approaches from different points of view (difficulties for the model end user, characterization of the process in the plant, flexibility or adaptability for each case of study, simulation platform requirements and computational costs) is carried out. From this comparison, some important conclusions about the suitability of each alternative depending on the simulation case study are extracted.

Towards a benchmark simulation model for plant-wide control strategy performance evaluation of WWTPs

The COST/IWA benchmark simulation model has been available for seven years. Its primary purpose has been to create a platform for control strategy benchmarking of activated sludge processes. The fact that the benchmark has resulted in more than 100 publications, not only in Europe but also worldwide, demonstrates the interest in such a tool within the research community In this paper, an extension of the benchmark simulation model no 1 (BSM1) is proposed. This extension aims at facilitating control strategy development and performance evaluation at a plant-wide level and, consequently, includes both pre-treatment of wastewater as well as the processes describing sludge treatment. The motivation for the extension is the increasing interest and need to operate and control wastewater treatment systems not only at an individual process level but also on a plant-wide basis. To facilitate the changes, the evaluation period has been extended to one year. A prolonged evaluation period allows for long-term control strategies to be assessed and enables the use of control handles that cannot be evaluated in a realistic fashion in the one-week BSM1 evaluation period. In the paper, the extended plant layout is proposed and the new suggested process models are described briefly. Models for influent file design, the benchmarking procedure and the evaluation criteria are also discussed. And finally, some important remaining topics, for which consensus is required, are identified.

Continuity-based interfacing of models for wastewater systems described by Petersen matrices

In this paper the Petersen and composition matrices that modellers are now familiar with are used as a basis to construct interfacing models between subsystems considered in wastewater treatment. Starting from continuity considerations and a set of transformation reactions between components used in the two models of the subsystems to be interfaced, a set of linear algebraic equations needs to be solved. The theoretical development is illustrated using a simplified integrated model of an activated sludge system coupled to an anaerobic digester. Continuity-guaranteed interfacing of subsystems will facilitate optimization studies of the within-the-fence process units of a wastewater treatment plant or of the integrated urban wastewater system.

The normal and abnormal distribution of the adrenomedullary imaging agent m-[I-131]iodobenzylguanidine (I-131 MIBG) in man: evaluation by scintigraphy

The scintigraphic distribution of m-[131I]iodobenzylguanidine (I-131 MIBG), an adrenal medullary imaging agent, was studied to determine the patterns of uptake of this agent in man. The normal distribution of I-131 MIBG includes clear portrayal of the salivary glands, liver, spleen, and urinary bladder. The heart, middle and lower lung zones, and colon were less frequently or less clearly seen. The upper lung zones and kidneys were seldom visualized. The thyroid appeared only in cases of inadequate thyroidal blockade. The "normal" adrenal glands were seldom seen and faintly imaged in 2% at 24 hr after injection and in 16% at 48 hr, in patients shown not to have pheochromocytomas, whereas intra-adrenal, extraadrenal, and malignant pheochromocytomas usually appeared as intense focal areas of I-131 MIBG uptake at 24 through 72 hr.

Value of bowel preparation in adrenocortical scintigraphy with NP-59

The use of radiolabeled cholesterol derivatives for functional imaging of the adrenal cortex may be rendered inaccurate or impossible because of the excretion of activity by the liver and its subsequent appearance in the colon. A simple bowel preparation (bisacodyl 5 or 10 mg nightly) significantly reduced bowel background activity during 6 beta-[I-131]iodomethyl-19-norcholesterol (NP-59) adrenal cortical scintigraphy. Activity interfering with image interpretability was present less frequently in patients taking bisacodyl: three days after injection 22% compared with 59%; five days after injection 23% compared with 35%. As bisacodyl acts only on the colon and does not disturb the enterohepatic circulation of cholesterol or bile acids, it is ideal for use with a tracer of cholesterol metabolism.

Effectiveness of coronary care units in small community hospitals

A prospective study was undertaken from 1969 to 1974 to evaluate a program establishing coronary care units in small community hospitals. Crude mortality rates from acute myocardial infarction in these small hospitals were 14.5%, slightly higher but not statistically different from concurrently collected data in three larger comparision hospitals (11.5%). Mutivariate discriminate analysis of clinical characteristics was used to calculate a risk score for each patient admitted. Observed deaths exceeded expected deaths (134 versus 119) (P greater than 0.30) in small hospitals but observed deaths were less than expected (55 versus 77)(P less than 0.05) in comparison hospitals. Mortality was significantly greater in those units admitting fewer than 60 patients with infarctions yearly (20.9%) than in those admitting more than 60 (10.7%) (P less than 0.001). These data suggest that coronary care units in small community hospitals can provide adequate coronary care, but their level of performance drops when fewer than 60 patients with infarctions are admitted yearly.