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Fifty years later: ‘I have a dream’

By Guest PostSeptember 3, 2013Politicsa, american history, civil rights act, civil rights movement, defiance college, dr king, dream, have, historic day, i, josie r johnson, march on washington, martin luther king, minnesota daily, minnesotans, ohio, path to freedom, president lyndon johnson, socioeconomic progress

U faculty and leaders reflect on the historic day and its aftermath

Fifty years ago, on August 28, 1963, a young preacher delivered a speech that would go down as one of the most important and powerful in all of American history. “I Have a Dream” became the cornerstone of the March on Washington, a march which galvanized a people and energized the civil rights movement. One year later, the Civil Rights Act was signed into law by President Lyndon Johnson.

Seven months earlier to the day, Martin Luther King Jr. delivered a speech to a crowd of about 2,000 on the U of M campus in Northrop Auditorium. The cover of January 29, 1963 Minnesota Daily read, “Much Remains in Path to Freedom—Dr. King.” (more…)

Harmful Protein-Coding Mutations in People arose Largely in the Past 5,000 to 10,000 Years

By Guest PostDecember 2, 2012Sciencea, africa migration, african, age, alzheimer, c, dating, discovery, dna code, dna sequence, Europe, european ancestry, evolutionary geneticist, future generation, g, gene, genetic variants, hardening, harmful, heart arteries, human, human diaspora, joshua akey, mesopotamia, metabolic pathways, middle east, model, mutation, nucleotide, out of africa, paralysis, premature ovarian failure, protein coding gene, protein coding mutation, seattle, single nucleotide, t, tap energy, university, variation, Washington, wenqing fu

A study dating the age of more than 1 million single-letter variations in the human DNA code reveals that most of these mutations are of recent origin, evolutionarily speaking. These kinds of mutations change one nucleotide – an A, C, T or G – in the DNA sequence. Over 86 percent of the harmful protein-coding mutations of this type arose in humans just during the past 5,000 to 10,000 years.

Some of the remaining mutations of this nature may have no effect on people, and a few might be beneficial, according to the project researchers. While each specific mutation is rare, the findings suggest that the human population acquired an abundance of these single-nucleotide genetic variants in a relatively short time. (more…)

Blood Discovery

By Guest PostMay 3, 2012Sciencea, arteries, blood clot, England, heart disease, intravital microscope, jam a protein, jonathan m gibbins, junctional adhesion molecule, lawrence brass, local cardiologist, meghna naik, plaque lines, platelets, protein in blood, stroke, ulhas naik, university of delaware, university of reading, world health organization

UD researchers discover that JAM-A protein keeps blood clots in check

Cut your toe, and platelets — those disc-shaped cells circulating in your blood — rush to the scene, clumping together to plug the leak.

But when an unwanted clot forms in an artery, and an overaccumulation of platelets blocks blood flow, a heart attack or stroke occurs, too often with fatal results.

Heart disease and stroke rank as humankind’s top killers, according to the World Health Organization. Ulhas Naik, director of the Delaware Cardiovascular Research Center at the University of Delaware, hopes to help change that grim statistic for the better. (more…)

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Fifty years later: ‘I have a dream’

Harmful Protein-Coding Mutations in People arose Largely in the Past 5,000 to 10,000 Years

Blood Discovery