Despite dramatic declines in children's blood lead concentrations and a lowering of the Centers for Disease Control Prevention's level concern to 10 microg per deciliter (0.483 micromol liter), little is known about neurobehavioral functioning at below this level.We measured 172 children 6, 12, 18, 24, 36, 48, 60 months age administered Stanford-Binet Intelligence Scale ages 3 5 years. The relation between IQ concentration was estimated with use linear nonlinear mixed models, adjustment...

<h3>Context.</h3> —Home-visitation services have been promoted as a means of improving maternal and child health functioning. However, long-term effects not examined. <h3>objective.</h3> —To examine the program prenatal early childhood home visitation by nurses on women's life course abuse neglect. <h3>Design.</h3> —Randomized trial. <h3>Setting.</h3> —Semirural community in New York. <h3>Participants.</h3> —Of 400 consecutive pregnant women with no previous live births enrolled, 324...

The theory of variance component analysis has been discussed recently by Crump (1946, 1951) and Eisenhart (1947). These papers and, indeed, most the published works on estimating components deal with one-way classification, nested classifications, factorial classifications having equal subclass numbers. Also this subject are concerned what (1947) called Model II; that is, all elements linear model save gi regarded as random variables. In above cases, estimation is usually accomplished...

A program of home visitation by nurses has been shown to affect the rates maternal welfare dependence, criminality, problems due use substances, and child abuse neglect. However, long-term effects this on children's antisocial behavior have not examined.To examine a prenatal early childhood behavior.Fifteen-year follow-up randomized trial. Interviews were conducted with adolescents their biological mothers or custodial parents.Semirural community in New York.Between April 1978 September...

A program of prenatal and infancy home visitation by nurses was tested as a method preventing wide range health developmental problems in children born to primiparas who were either teenagers, unmarried, or low socioeconomic status. Among the women at highest risk for care-giving dysfunction, those visited nurse had fewer instances verified child abuse neglect during first 2 years their children's lives (P = .07); they observed homes restrict punish less frequently, provided more appropriate...

Abstract This article reviews current scholarship about how to promote change in instructional practices used undergraduate science, technology, engineering, and mathematics (STEM) courses. The review is based on 191 conceptual empirical journal articles published between 1995 2008. Four broad categories of strategies were developed capture core differences within this body literature: disseminating curriculum pedagogy, developing reflective teachers, enacting policy, shared vision. STEM...

The inverse of a numerator relationship matrix is needed for best linear unbiased prediction breeding values. purpose this paper to present rapid and simple method computation the elements without computing itself. particularly useful in noninbred populations but much faster than conventional presence inbreeding.

Objective. To examine the effectiveness of home visiting by paraprofessionals and nurses as separate means improving maternal child health when both types visitors are trained in a program model that has demonstrated delivered nurses. Methods. A randomized, controlled trial was conducted public- private-care settings Denver, Colorado. One thousand one hundred seventy-eight consecutive pregnant women with no previous live births who were eligible for Medicaid or had private insurance invited...

We evaluated a comprehensive program of prenatal and postpartum nurse home visitation. The was designed to prevent wide range health developmental problems in children born primiparous women who were either teenagers, unmarried, or low socioeconomic status. During pregnancy, visited by nurses, compared with randomly assigned comparison groups, became aware more community services; attended childbirth classes frequently; made extensive use the nutritional supplementation for women, infants,...

A very common problem which arises in animal or plant breeding research is that of assessinig the gain has resulted from a selection program carr'ied oIn ovei number years. To be specific, let us suppose we have closed dairy herd been maintained over years with being practiced. The records available for assessing any genetic improvemient consist production cows various and can represented by twoway classification, cow year. At first it might thought such two-way classification could analyzed...

Sire evaluation can logically be formulated as a process of prediction future progeny sire produced by matings with specified females and making their records in some environment. Sewall Wright (1931) over 40 years ago suggested three types that might interest: (1) particular mating, (2) daughters the same herd but out new sample dams, (3) random dams breed. Dr. Lush early 1931 had elucidated principles evaluation, (1931 (1933). As was pointed Lehman (1961), two selection problems have been...

Objective. To test, with an urban, primarily black sample, the effects of prenatal and infancy home visits by nurses on mothers' fertility economic self-sufficiency academic behavioral adjustment their children as finished kindergarten, near sixth birthday. Methods. We conducted a randomized, controlled trial program home-visiting in public system obstetric pediatric care Memphis, Tennessee. A total 743 women at &amp;lt;29 weeks gestation, no previous live births ≥2 sociodemographic risk...

Many proven research-based instructional strategies have been developed for introductory college-level physics. Significant efforts to disseminate these focused on convincing individual instructors give up their traditional practices in favor of particular practices. Yet evidence suggests that the findings educational research are, at best, only marginally incorporated into typical physics courses. In this paper we present partial results an interview study designed generate new ideas about...

BackgroundFew studies provide data directly relevant to the question of whether blood lead concentrations &lt; 10 μg/dL adversely affect children’s cognitive function.ObjectiveWe examined association between assessed throughout early childhood and IQ at 6 years age.MethodsChildren were followed from months age, with determination 6, 12, 18, 24 months, 3, 4, 5, age. At intelligence was in 194 children using Wechsler Preschool Primary Scale Intelligence–Revised. We used general linear...

Objective. To examine the effects of prenatal and infancy home visiting by paraprofessionals nurses from child age 2 through 4 years. Methods. We conducted, in public private care settings Denver, Colorado, a randomized, controlled trial with 3 arms, ie, control, paraprofessional visits, nurse visits. Home visits were provided pregnancy invited 1178 consecutive, low-income, pregnant women no previous live births to participate, we randomized 735; 85% unmarried, 47% Mexican American, 35%...

Methods have been derived for best linear unbiased prediction of breeding values multiple traits utilizing records on large numbers relatives as well the individual's own records. The method is based upon an extension Henderson's efficient utilization relatives' in single trait evaluation. Examples are given three beef cattle.

Abstract Background Prior efforts have built a knowledge base of effective undergraduate STEM pedagogies, yet rates implementation remain low. Theories from higher education, management, communication, and other fields can inform change but largely inaccessible to education leaders, who are just beginning view as scholarly endeavor informed by the research literature. Purpose This article describes goals, assumptions, underlying logic selected strategies with potential relevance settings for...

OBJECTIVE. Our goal was to test the effect of prenatal and infancy home visits by nurses on mothers' fertility children's functioning 7 years after program ended at child age 2. METHODS. We conducted a randomized, controlled trial in public system obstetric pediatric care. A total 743 primarily black women &amp;lt;29 weeks' gestation, with previous live births least 2 sociodemographic risk characteristics (unmarried, &amp;lt;12 education, unemployed), were randomly assigned receive nurse or...

During the fall of 2008 a web survey, designed to collect information about pedagogical knowledge and practices, was completed by representative sample 722 physics faculty across United States (50.3% response rate). This paper presents partial results describe how 20 potential predictor variables correlate with use research-based instructional strategies (RBIS). The innovation-decision process conceived in terms four stages: versus no knowledge, trial trial, continuation discontinuation,...

We report on the initial results of a web-based survey 722 physics faculty in United States regarding their instructional practices. The responses indicate that most knowing about many education research curricula and pedagogies are interested motivated to try them teaching. However, self-reports actual classroom practices availability these has not led fundamental changes instruction. Faculty time is biggest impediment implementing more research-based reforms. These suggest need for...

To estimate past-year prevalence and identify risk protective factors of elder emotional abuse, physical neglect.Cross-sectional, population-based study using random-digit-dial sampling direct telephone interviews.New York State households.Representative (race, ethnicity, sex) sample (N = 4,156) English- or Spanish-speaking, community-dwelling, cognitively intact individuals aged 60 older.The Conflict Tactics Scale was adapted to assess abuse. Elder neglect evaluated according failure a...