Investigating suburban micromoth diversity using DNA barcoding of malaise trap samples

Micromoths can be challenging to identify based on morphology and are frequently omitted in assessments of moth diversity. However, their species richness and biology make them important components of terrestrial ecosystems. In this study we identified 1227 micromoths from a suburban garden at 63° north using DNA barcoding of Malaise trap samples. We recorded 78 different species with the 11 most abundant taxa accounting for 82 % of the catch. The remaining 67 species were represented by fewer than 14 specimens, but the number was often sufficient to provide a good idea of phenology. The larvae of these 78 species all feed on plants common in suburban environments. We show that when facilitated by identifications through DNA barcoding, Malaise traps provide interesting insights into the micromoth communities of suburban environments that might otherwise be overlooked. The use of Malaise traps is beneficial for investigations at high latitudes where light trapping is inefficient for sampling moths due to bright summer nights.     

THE PROFESSIONAL FARMER

The Australian farmer faces important and interconnected management challenges on both the economic and ecological fronts. To confront these challenges effectively, farmers would be well advised to constitute themselves as a professional body along the lines of the Bar Association. Making farming a professional activity in this sense would provide a number of important benefits and advantages. It would facilitate the provision and delivery of the needed educational resources for economic and ecological land management, and help farmers avoid the pressures of heavy‐handed government centralism. At the same time, such professionalism would encourage more efficient use of sector resources by minimising the need for direct political lobbying and intra‐farm group competition for membership. As a professional body, farmers could hope for increased public standing and the economic clout that would come from having control over the supply of skilled land managers.     

Parental Involvement Laws and Minor and Non-Minor Teen Abortion and Birth Rates

The effects of parental notice and consent laws on abortion and birth rates were analyzed for two groups of teens: those 15 to 17 years old (i.e., minor teens) and those 18 to 19 years old (i.e., non-minor teens). Twelve states report abortion and birth statistics at the county level for these two age groups. The sample consists of 597 counties from these twelve states. Residence county abortion and birth rates were regressed against parental notice laws, parental consent laws, and several control variables (i.e., type of state public funding, population density, education and income levels, unemployment rate, family stability, extent of poverty, church membership, and geographic region).An important finding of this study is that both parental consent and notification laws were related to significantly lower abortion rates and to significantly higher birth rates for both minor and non-minor teens. Three measures (i.e., church membership, family stability, and education level) were related negatively and significantly to minor and non-minor teens' abortion rates and birth rates. One other measure (i.e., restrictive public funding) was related significantly to lower abortion rates and higher birth rates for minor and non-minor teens.     

Assertive training for low-income black parents

An assertive training program for parents is described, which was implemented in the Detroit Public Schools Region 7 by therapists from the Wayne State University Psychology Clinic. Fifty-nine parents of preschool age children were trained for 5 consecutive weeks and at one follow-up session. The major goals of the program were to increase the self-esteem of family members and to promote a happier atmosphere in the home. Parents were enthusiastic about this approach and stated that the discussions helped them feel more confident and therefore they were able to handle specific problems with their children more effectively.This project was supported, in part, by a grant from the McGregor, Fund and the Eloise and Richard Webber Foundation.     

Multistage Models of Carcinogenesis: An Approximation for the Size and Number Distribution of Late-Stage Clones

Multistage models have become the basic paradigm for modeling carcinogenesis. One model, the two-stage model of carcinogenesis, is now routinely used in the analysis of cancer risks from exposure to environmental chemicals. In its most general form, this model has two states, an initiated state and a neoplastic state, which allow for growth of cells via a simple linear birth-death process. In all analyses done with this model, researchers have assumed that tumor incidence is equivalent to the formation of a single neoplastic cell and the growth kinetics in the neoplastic state have been ignored. Some researchers have discussed the impact of this assumption on their analyses, but no formal methods were available for a more rigorous application of the birth-death process. In this paper, an approximation is introduced which allows for the application of growth kinetics in the neoplastic state. The adequacy of the approximation against simulated data is evaluated and methods are developed for implementing the approximation using data on the number and size of neoplastic clones.     

Early Word Segmentation by Infants and Toddlers With Williams Syndrome

This study tested the ability of English infants and toddlers with Williams syndrome to segment, that is, to extract from fluent speech, bisyllabic nouns that had either a strong–‐weak stress pattern (predominant in English), or a weak–‐strong stress pattern. The testing procedure was the same for both types of words: Children were familiarized with instances of isolated nouns, and then tested on their recognition of these nouns embedded in passages. In English, typically developing infants start segmenting strong–‐weak nouns by 7.5 months of age, and weak–‐strong nouns by 10.5 months. Our clinical population was able to segment strong–‐weak nouns, but failed, despite chronological ages above 15 months, to segment weak–‐strong words. These results suggest that the development of word segmentation is seriously delayed in Williams syndrome. This deficit in early phonological processing may contribute to a fuller understanding of the late lexical onset in this population, a phenomenon that had hitherto only been explained in terms of cognitive and semantic deficits.     

Positive Effekte sozialen Faulenzens beim Lösen komplexer Probleme

The term “social loafing” refers to a decrease in motivation and achievement in group work due to sinking responsibility of the individual for the groups’ outcome. Recent studies assume a paradoxical relation between motivation and outcome, which should produce better outcome with decreased motivation. The current study addresses this question. Two experiments with N=60 subjects working in groups of 3 are reported. Subjects had to deal with a computer simulated scenario of a fire fighting situation. There was a simple and a more complex version; also, individual responsibility for the groups’ outcome was either given (coactive condition) or not (collective condition). During experiment 1, subjects could only deal with their own section of the scenario; in experiment 2, they were allowed to work on the whole field. Dependent variables were effort (in terms of commands given) and achievement (in terms of space saved). It turned out that under collective responsibility effort was reduced but this did not lead to decreased achievement. Under the complex condition, with decreased effort even an increase in achievement could be demonstrated. Implications for the collective effort model presented by Karau and Williams are discussed.