Does free trade result in higher GDP per capita: An International Perspective

 The theory of comparative advantage suggests that free trade increases overall world production of goods and services and it is a positive sum game in which all participating countries realise economic gains. The evaluation of data from a number of countries in this study demonstrates a strong correlation between a country’s level of trade freedom (according to its Trade Freedom Index) and its GDP per capita. There are exceptions to this trend in countries that have experienced social or political unrest. This is consistent with research into the relationship between economic freedom and GDP growth which suggest that levels of economic freedom (of which trade freedom is a component) in a country impact upon growth subject to social, economic or political climate in these countrie

Second Graders’ Recycled/Craft Item Products Demonstrate Life Cycle Content Knowledge and Creativity Skills

Creativity is a necessary skill for students to become problem solvers in the rapidly changing 21st century. This study’s main activity allowed students to demonstrate their content knowledge in an engaging way while also exhibiting creative strengths. Twenty-two second grade students (15 female, 7 male) of mixed ability levels at a Title 1 school produced projects using identical sets of recycled and craft items. They incorporated vocabulary words and images associated with the life cycles of four organisms: horse, dragonfly, sea turtle, and bean plant. Projects were analyzed for creative strengths as well as science concept integration. Student-made products showed vocabulary from all four life cycles, but familiar organisms (dragonfly and bean plant) were depicted more frequently. Creative strengths evidenced in student work included: elaboration, breaking boundaries, storytelling articulateness, originality, and emotional expressiveness, among others. The authors recommend teachers incorporate similar creative tasks as assessments of content learning. Additional studies integrating more creative product assessments for a longer duration to show growth over time are suggested

Dropout in a longitudinal, cohort study of urologic disease in community men

BACKGROUND: Reasons for attrition in studies vary, but may be a major concern in long-term studies if those who drop out differ systematically from those who continue to participate. Factors associated with dropout were evaluated in a twelve-year community-based, prospective cohort study of urologic disease in men. METHODS: During 1989–1991, 2,115 randomly selected Caucasian men, ages 40–79 years from Olmsted County, Minnesota were enrolled and followed with questionnaires biennially; 332 men were added in follow-up. A random subset (~25%) received a urologic examination. Baseline characteristics including age, benign prostatic hyperplasia (BPH) symptoms, comorbidities, and socioeconomic factors were compared between subjects who did and did not participate after the twelfth year of follow-up. RESULTS: Of the 2,447 men, 195 died and were excluded; 682 did not participate in 2002. Compared with men in the 40–49 year age group, men ≥ 70 years of age at baseline had a greater relative odds of dropout, 2.65 (95% CI: 1.93, 3.63). In age-adjusted analyses, relative to men without stroke, men who had suffered a stroke had a higher odds of dropout, age-adjusted OR 3.07 (95% CI: 1.49, 6.33). Presence of at least one BPH symptom was not associated with dropout, (age-adjusted OR 1.12 (95% CI: 0.93, 1.36)). CONCLUSION: These results provide assurance that dropout was not related to primary study outcomes. However, factors associated with dropout should be taken into account in analyses where they may be potential confounders

Finishing the euchromatic sequence of the human genome

The sequence of the human genome encodes the genetic instructions for human physiology, as well as rich information about human evolution. In 2001, the International Human Genome Sequencing Consortium reported a draft sequence of the euchromatic portion of the human genome. Since then, the international collaboration has worked to convert this draft into a genome sequence with high accuracy and nearly complete coverage. Here, we report the result of this finishing process. The current genome sequence (Build 35) contains 2.85 billion nucleotides interrupted by only 341 gaps. It covers ∼99% of the euchromatic genome and is accurate to an error rate of ∼1 event per 100,000 bases. Many of the remaining euchromatic gaps are associated with segmental duplications and will require focused work with new methods. The near-complete sequence, the first for a vertebrate, greatly improves the precision of biological analyses of the human genome including studies of gene number, birth and death. Notably, the human enome seems to encode only 20,000-25,000 protein-coding genes. The genome sequence reported here should serve as a firm foundation for biomedical research in the decades ahead