Friday, 3 July 2015
joke of the day
health tip for today
Conversely, cardiovascular exercise should be the last thing you do at the gym, because it helps your body recover by increasing blood flow to the muscles, and flushing out lactic acid, which builds up in the muscles while you're weight training. It’s the lactic acid that makes your muscles feel stiff and sore.
Controlling a "cyborg" cockroach - could these insects help in nuclear disasters?
A team of engineers and entomologists at Texas A&M University are fitting electronic devices to cockroaches to see whether they could be controlled and used to access areas that are difficult for humans to reach such as a nuclear disaster zone.
Professor of Entomology S Bradleigh Vinson said they were not hurting the insects and he was not aware of them experiencing any pain from the tests.
Thursday, 2 July 2015
today in histry
1964
Johnson signs Civil Rights Act
On this day in 1964, U.S. President Lyndon B. Johnson signs into law the historic Civil Rights Act in a nationally televised ceremony at the White House.
In the landmark 1954 case Brown v. Board of Education, the U.S. Supreme Court ruled that racial segregation in schools was unconstitutional. The 10 years that followed saw great strides for the African-American civil rights movement, as non-violent demonstrations won thousands of supporters to the cause. Memorable landmarks in the struggle included the Montgomery bus boycott in 1955–sparked by the refusal of Alabama resident Rosa Parks to give up her seat on a city bus to a white woman–and Martin Luther King, Jr.’s famous “I have a dream” speech at a rally of hundreds of thousands in Washington, D.C., in 1963.
As the strength of the civil rights movement grew, John F. Kennedy made passage of a new civil rights bill one of the platforms of his successful 1960 presidential campaign. As Kennedy’s vice president, Johnson served as chairman of the President’s Committee on Equal Employment Opportunities. After Kennedy was assassinated in November 1963, Johnson vowed to carry out his proposals for civil rights reform.
The Civil Rights Act fought tough opposition in the House and a lengthy, heated debate in the Senate before being approved in July 1964. For the signing of the historic legislation, Johnson invited hundreds of guests to a televised ceremony in the White House’s East Room. After using more than 75 pens to sign the bill, he gave them away as mementoes of the historic occasion, according to tradition. One of the first pens went to King, leader of the Southern Christian Leadership Conference (SCLC), who called it one of his most cherished possessions. Johnson gave two more to Senators Hubert Humphrey and Everett McKinley Dirksen, the Democratic and Republican managers of the bill in the Senate.
The most sweeping civil rights legislation passed by Congress since the post-Civil War Reconstruction era, the Civil Rights Act prohibited racial discrimination in employment and education and outlawed racial segregation in public places such as schools, buses, parks and swimming pools. In addition, the bill laid important groundwork for a number of other pieces of legislation–including the Voting Rights Act of 1965, which set strict rules for protecting the right of African Americans to vote–that have since been used to enforce equal rights for women as well as all minorities.
health of the day
Conversely, cardiovascular exercise should be the last thing you do at the gym, because it helps your body recover by increasing blood flow to the muscles, and flushing out lactic acid, which builds up in the muscles while you're weight training. It’s the lactic acid that makes your muscles feel stiff and sore.
joke of the day
A robot has killed a worker at a Volkswagen car production plant in Germany
A robot has killed a worker at a Volkswagen car production plant in Germany, the corporation has said. ”
Wednesday, 1 July 2015
Nigerian-born scientist wins award for his cancer-seeing glasses
A Nigerian born scientist, Samuel Achilefu, has won the prestigious St. Louis Award for 2014 for creating cancer-visualizing glasses.
Dr. Achilefu, a professor of radiology and biomedical engineering, and his team developed the imaging technology in cancer diagnosis into a wearable night vision-like goggles so surgeons could see the cancer cells while operating.
“They basically have to operate in the dark,” Bloomberg Businessweek quoted Dr. Achilefu, 52, as saying.
“I thought, what if we create something that let’s you see things that aren’t available to the ordinary human eye.”
Dr. Achilefu won a scholarship from the French government to study at the University of Nancy, according to St. Louis Post-Dispatch, a regional newspaper in St. Louis, U.S., and is the 87th person to receive the annual award since it was established in 1931.
Married with two young children, Dr. Achilefu moved to St. Louis after he was hired by Mallinckrodt to start a new research department.
“Our efforts start with two words: ‘What if?'” Dr. Achilefu said during his acceptance speech.
“These words may sound simple, but they embody the belief that each person has the potential to make a difference, if only he or she can take the time to understand the problem.”
According to Bloomberg, the researchers’ technology requires two steps: First, surgeons inject a tiny quantity of an infrared fluorescent marker into the patient’s bloodstream. The peptides contained in the marker enables it to locate cancer cells and buries itself inside.
After the tracer flows through a patient’s body and clears from non-cancerous tissue – which lasts about four hours – the operation would begin. Wearing the goggle, the doctor can inspect tumours under an infra red light that reacts with the dye, causing cancer cells to glow from within.
This month, the goggles have been used on humans for the first time by surgeons at the Washington University School of Medicine.
Four patients suffering from breast cancer and over two dozen patients with melanoma or liver cancer have been operated on using the goggles since they were developed.
“The goggles function fantastically,” says Ryan Fields, a surgical oncologist who is collaborating with Dr. Achilefu to improve on the technology.
“They allow us to see the cells in real time, which is critical. Because the marker has not yet been FDA-approved, doctors are currently using a different, somewhat inferior marker that also reacts with infrared light.”
Julie Margenthaler, a breast cancer surgeon, says tens of thousands of women who had had breast cancer lumpectomies go back for second operations every year because of the inability to see the microscopic extent of the tumours.
“Imagine what it would mean if these glasses eliminated the need for follow-up surgery and the associated pain, inconvenience and anxiety.”
Dr. Achilefu and his team began work in 2012 after they received $2.8 million grant from the National Institutes of Health, according to the St. Louis Post-Dispatch.
Before then, they had been working on a lean budget provided by the Department of Defence’s Breast Cancer Research Program.
After it was developed, the team spent years testing the technology on mice, rats, and rabbits to confirm the efficacy of the goggles.
“Nobody would believe us until we showed that the goggles work,” Dr. Achilefu says.
The Food and Drug Administration are still reviewing the goggles and a related dye Dr. Achilefu and his co-researchers developed, according to Washington University in St. Louis, a St. Louis based journal.
Dr. Achilefu says he intends to keep Washington University as the primary centre for clinical trials to evaluate the technology in patients.
“Making a difference in society should be the goal of everybody,” Dr. Achilefu
today in history
1997
Hong Kong returned to China
At midnight on July 1, 1997, Hong Kong reverts back to Chinese rule in a ceremony attended by British Prime Minister Tony Blair, Prince Charles of Wales, Chinese President Jiang Zemin, and U.S. Secretary of State Madeleine Albright. A few thousand Hong Kongers protested the turnover, which was otherwise celebratory and peaceful.
In 1839, Britain invaded China to crush opposition to its interference in the country’s economic, social, and political affairs. One of Britain’s first acts of the war was to occupy Hong Kong, a sparsely inhabited island off the coast of southeast China. In 1841, China ceded the island to the British with the signing of the Convention of Chuenpi, and in 1842 the Treaty of Nanking was signed, formally ending the First Opium War.
Britain’s new colony flourished as an East-West trading center and as the commercial gateway and distribution center for southern China. In 1898, Britain was granted an additional 99 years of rule over Hong Kong under the Second Convention of Peking. In September 1984, after years of negotiations, the British and the Chinese signed a formal agreement approving the 1997 turnover of the island in exchange for a Chinese pledge to preserve Hong Kong’s capitalist system. On July 1, 1997, Hong Kong was peaceably handed over to China in a ceremony attended by numerous Chinese, British, and international dignitaries. The chief executive under the new Hong Kong government, Tung Chee Hwa, formulated a policy based on the concept of “one country, two systems,” thus preserving Hong Kong’s role as a principal capitalist center in Asia.
joke of the day
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