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Sunday, August 21, 2005

A robotic system at Stanford Medical Center was used to perform a laparoscopic gastric bypass surgery successfully with a theoretically similar rate of complications to that seen in standard operations. However, as there were only 10 people in the experimental group (and another 10 in the control group), this is not a statistically significant sample.

If this surgical procedure is as successful in large-scale studies, it may lead the way for the use of robotic surgery in even more delicate procedures, such as heart surgery. Note that this is not a fully automated system, as a human doctor controls the operation via remote control. Laparoscopic gastric bypass surgery is a treatment for obesity.

There were concerns that doctors, in the future, might only be trained in the remote control procedure. Ronald G. Latimer, M.D., of Santa Barbara, CA, warned “The fact that surgeons may have to open the patient or might actually need to revert to standard laparoscopic techniques demands that this basic training be a requirement before a robot is purchased. Robots do malfunction, so a backup system is imperative. We should not be seduced to buy this instrument to train surgeons if they are not able to do the primary operations themselves.”

There are precedents for just such a problem occurring. A previous “new technology”, the electrocardiogram (ECG), has lead to a lack of basic education on the older technology, the stethoscope. As a result, many heart conditions now go undiagnosed, especially in children and others who rarely undergo an ECG procedure.

Wednesday, July 14, 2010

On Friday, the Los Angeles Police Department arrested and charged a woman with murder, after she reportedly stabbed her ten-year-old daughter to death at the Air Force base Fort MacArthur residential facility in San Pedro, California. The girl’s father is a former member of the Navy.

The 49-year-old mother, Bong Sook Chavez, allegedly slit her daughter’s wrists and neck. Chavez slit her own wrists after attacking her daughter. In a statement issued on Monday, investigators say Chavez likely stabbed her daughter while she was asleep in bed.

Deputy Chief Pat Gannon told the Los Angeles Times Chavez has a history of mental health problems. According to Gannon, “The father was able to get the weapon away from her.” The father awoke at around 2:30 a.m. local time to find Chavez attacking her daughter.

The daughter, Quesi Chavez, later died at the University of Southern California’s Medical Center as a result of her wounds. As of Monday, the mother remained in the hospital in stable condition, but was scheduled to appear in court yesterday.

Sunday, October 24, 2010

Eight months after a catastrophic earthquake, Wikinews has investigated the devastation caused in February and the reconstruction of Pichilemu, Chile. The February 27 earthquake and a subsequent tsunami completely destroyed Pichilemu’s most coastal street and its oldest villages. Wikinews has also had access to the original design plans of the new kiosks in Pichilemu, and conducted an interview with merchant Alejandro Mella, known locally as the King of the Cochayuyo (“El Rey del Cochayuyo”), who lost his kiosk after the earthquake.

Pichilemu is a coastal city in the O’Higgins Region of Chile, known as one of the “best surfing spots” in South America. Its current Mayor is Roberto Córdova Carreño, who was elected internally by the Councillors of the city in September 2009, after several political controversies that ended with three Mayors being displaced.

The territory of Pichilemu has a surface of 7,491 square kilometers, and comprises at least 24 villages, such as Ciruelos, Rodeíllo and Espinillo (the latter two also severely damaged by the March 11 earthquake). Pichilemu is the most popular beach in O’Higgins Region, and many tourists visit it every summer.

The earthquake took place in what is considered the “last weekend in the summer;” on Saturday, February 27, 2010 at 03:34 local time (06:34 UTC), while almost all Chileans were sleeping. Hours earlier, on Friday, thousands of people had arrived at Pichilemu. “The house moved from side to side. I really thought it was going to fall. It was 3 or 4 minutes long,” Diego Grez, a Chilean student who was in Pichilemu at the time of the quake, told Wikinews in an interview.

A concert was being held at the One Discotheque when the earthquake occurred. It is said that the audience panicked and fled outside the discothèque, and then to the La Cruz Hill. Most tourists fled outside the city right after the earthquake occurred, but many others opted to stay in the La Cruz Hill or the village of Pueblo de Viudas, which are the higher points in the city.

“Pichilemu is the symbolic beach resort in the Sixth Region [of O’Higgins], so it was not strange to even think that [during] the last weekend before the entrance to school, many people would be going to take advantage of it to take a vacation; and that’s what happened,” reported El Rancagüino, the most important newspaper in O’Higgins Region, on February 28.

The only radio broadcasting in the area was Entre Olas, directed by Jorge Nasser, which also helped Pichileminians know what happened in other affected places by the earthquake, as they re-broadcasted the audio of Televisión Nacional de Chile (National Television of Chile). On the day of the earthquake, the station reported that a local police truck had crashed near La Cruz Hill. There was no tsunami warning, and Mayor Córdova was away on holiday when the earthquake struck.

“Those who live in Pichilemu, and those who were visiting it, were surprised by the giant waves that annihilated its beach and reached the city’s square, destroying everything on their way,” reported El Morrocotudo on February 28. “The most tough thing occurred when the firefighters’ alarms sounded twice, and the people in the hill began to yell ‘tsunami!’,” journalist Tania Arce told the newspaper.

The earthquake destroyed one of Pichilemu’s oldest and iconic buildings, the post office, which was demolished in July. The urban centre of Pichilemu was not severely damaged by the earthquake, but its subsequent tsunami caused most of the destruction. The Agustín Ross architecture in the city (three of his buildings are National Monuments of Chile) was damaged. Agustín Ross Balcony was completely destroyed.

According to SHOA, the Hydrographic and Oceanographic Service of the Chilean Navy, the tsunami triggered by the earthquake first reached Pichilemu, at 03:48 (06:48 UTC). A second wave came at 04:15 (07:15 UTC).

Policeman José Arévalo was the only person to warn residents that a tsunami was approaching. Arévalo was patrolling the Las Terrazas beach, when the earthquake occurred. He told El Rancahuaso there were around 25 people in the beach. “Right after the quake, he noticed the sea had shrank around 500 meters inside. He took his megaphone, and shouted people should leave the place instantly.” “The sea is coming out! The sea is coming out!,” he shouted. “The warning was also preceived by nightclubs and pubs surrounding the costanera. Then, the tragedy occurred. The sea destroyed everything on its way,” El Rancahuaso reported. “It all was really quick. Everyone is safe, luckily [..] It’s something unforgettable to me, I’m proud I saved all of those lives,” Arévalo added.

The tsunami destroyed restaurants, hotels, kiosks, the Fishermen Store (Caleta de Pescadores), surf schools, the Agustín Ross Balcony (located right in front of the Las Terrazas beach) and houses near the costanera (the nearest street to the beach), and flooded the building of the Government of Cardenal Caro Province, the boarding school of Pichilemu, the city square (Arturo Prat Square), and the Supermarket El 9.

A local worker, Ricardo Vivanco, also known as “El Gordo” (“The Fat one”), almost was killed by a tsunami, ignoring warnings by the Police and the Fire Bureau. Vivanco was drunk, and went down to the Las Terrazas beach with his friends. The wave washed him away, and was hit on the Agustín Ross Balcony’s wall. His friends recorded a video and uploaded it to YouTube.

It was reported by Radio Entre Olas on February 27, that the tsunami had provoked massive damage in Punta de Lobos, Pichilemu’s most popular beach. The owner of Entre Mar, an hotel and restaurant in that beach, said the tsunami had destroyed all of his buildings there.

The village of Espinillo was badly damaged, and approximately 600 people were made homeless by the earthquake, Teletrece reported on March 16. “We are keeping the government informed, we’re also organized with some churches [sic, religious organizations] that are working voluntarily in Espinillo, Los Boldos, Alto Ramírez […] We thank a lot their work, that is not to give them mediaguas [temporary tenements], but something definitive, but I also think they need resources to do it,” Mayor Córdova said.

On March 11, Chile was hit by a second earthquake, that reached a magnitude of 6.9, and that occurred 40 kilometers southwest of Pichilemu. It occurred at 11:39 local time (14:39 UTC), while the new President Sebastián Piñera was sworn in.

A tsunami warning was issued by SHOA, between Coquimbo and Los Lagos regions. People in Pichilemu fled again to La Cruz Hill. Military authorities assured people in the hill they were going to be safe there, and that it was unlikely a tsunami was going to hit again Chile’s coast. The tsunami warning was lifted at 15:50 local time (18:50 UTC).

People stayed in La Cruz Hill for a longer time than after the previous earthquake, and several activities were made there, such as a concert by Chilean-Brazilian singer Joe Vasconcellos. People were also given food, wood (mostly remains from the destroyed kiosks), and electricity.

“We are here because we fear about our safety. We don’t want it [a possible tsunami] to catch us. We have to settle down here and to accommodate,” Edith Larraín told to Wikinews. Mayor Córdova estimated that at least 2,000 people were staying at La Cruz Hill. Militaries and provincial authorities asked them to leave the hill on March 15, but most refused the deal. People eventually left the hill, due to complaints by the Mayor.

On March 20, in collaboration with the Governor of Cardenal Caro Julio Ibarra, Colonel Raúl Melo, and the Mayor of Litueche Bernardo Cornejo, Mayor of Pichilemu Roberto Córdova announced a “tourism revival campaign” of Pichilemu, promoting the surf practice, whose goal was “to make the city go back to the normality.”

On April 4, the first monument was erected in memory of the earthquake and tsunami victims. The monument was created by local artisans, with rocks from several places of the Cardenal Caro Province. “We wanted to create this monument so we don’t forget it [the earthquake] […] This is the beginning of the reconstruction,” said Julio Ibarra. The monument was placed in front of the beach, near the building of the Cardenal Caro Government. Mayor Roberto Córdova said that “it definitely will help us reconstruct [ourselves] espiritually, [and that] is essential.”

On October 20, with the help of the Government, SERCOTEC (Technical Cooperation Service, Servicio de Cooperación Técnica) and FOSIS (Solidarity and Social Investment, Fondo de Solidaridad e Inversión Social), the Fishermen Store (Caleta de Pescadores) began to be reconstructed. Caleta de Pescadores is administered by the Independent Labour Union of Fishermen of Pichilemu (Sindicato de Trabajo Independientes de Pescadores Artesanales), which has twenty-three members.

“The Government of President Sebastián Piñera has been worried about the fishing area, carrying out several actions in help of them, after all that they’ve suffered after the earthquake and tsunami that hit them […] This area is working normally again,” Governor Ibarra said.

On October 6, the Municipality of Pichilemu published the design of kiosks that were going to be constructed, as replacement of those destroyed by the earthquake. As of October 23, four kiosks have been constructed in Pichilemu, specifically on Las Terrazas beach, and two more are being constructed. According to Mauricio Grez, a construction engineer, the construction of one kiosk would cost up to US$ 2,500 (CLP 1,000,000).

Alejandro Mella, locally known as “el Rey del Cochayuyo” (“the King of the Cochayuyo”), is a merchant of Pichilemu, who promotes the cochayuyo (durvillaea antarctica), and lost his kiosk after the February earthquake and tsunami. “I was given my [former] kiosk by the Mayor Orlando Cornejo, back in 1993. It was right in front of us [in front of Las Terrazas beach, near “the grotto of the Virgin”], and was made smithereens by the tsunami,” he told Wikinews.

“I have always worked on selling cochayuyo here, and the terrain where my kiosk was located before has been disputed by private people, and the municipality approved that. I talked with the Mayor and he said ‘I don’t know what’s going on the beach’; that left me perplexed. […] I like the new design of the kiosks, they are larger, and we can do more things with it, but they are way too expensive,” he added. Mr. Mella also gave Wikinews a sample of his work as “the King of the Cochayuyo”, an essay called “El cochayuyo es una mina repleta de nutrientes y sales minerales” (“Cochayuyo is a mine full of nutrients and mineral salts”, pictured below), which he sells for 200 Chilean pesos (0.41 US$), and that contains “tips and information about the plant, and some recipes.”

Sunday, August 21, 2005

A robotic system at Stanford Medical Center was used to perform a laparoscopic gastric bypass surgery successfully with a theoretically similar rate of complications to that seen in standard operations. However, as there were only 10 people in the experimental group (and another 10 in the control group), this is not a statistically significant sample.

If this surgical procedure is as successful in large-scale studies, it may lead the way for the use of robotic surgery in even more delicate procedures, such as heart surgery. Note that this is not a fully automated system, as a human doctor controls the operation via remote control. Laparoscopic gastric bypass surgery is a treatment for obesity.

There were concerns that doctors, in the future, might only be trained in the remote control procedure. Ronald G. Latimer, M.D., of Santa Barbara, CA, warned “The fact that surgeons may have to open the patient or might actually need to revert to standard laparoscopic techniques demands that this basic training be a requirement before a robot is purchased. Robots do malfunction, so a backup system is imperative. We should not be seduced to buy this instrument to train surgeons if they are not able to do the primary operations themselves.”

There are precedents for just such a problem occurring. A previous “new technology”, the electrocardiogram (ECG), has lead to a lack of basic education on the older technology, the stethoscope. As a result, many heart conditions now go undiagnosed, especially in children and others who rarely undergo an ECG procedure.

Sunday, June 4, 2017

In an analysis published on Friday in Science, scientists announced data collected from the Curiosity Rover show that Mars’s Gale Crater was once a chemically stratified lake, meaning the aquatic environment differed markedly between deep and shallow water. According to the report, “all of the physical, chemical, and energetic conditions necessary to establish a habitable environment were present on Mars between ~3.8 billion and 3.1 billion years ago.”

Analysis shows the chemical index of alteration fluctuated over time in a way that suggested the lake varied between hot, wet periods and colder, drier periods. The shallow water would have been rich in oxidants brought in from the atmosphere and groundwater, and the deeper water would have been oxidant poor. Phosphates, carbon, nitrogen, iron and sulfur, indicating chemistry suitable for life, have also been found there in a variety of compounds.

Lead author Joel Hurowitz of Stony Brook University explained, “These were very different, co-existing environments in the same lake[…] This type of oxidant stratification is a common feature of lakes on Earth, and now we’ve found it on Mars. The diversity of environments in this Martian lake would have provided multiple opportunities for different types of microbes to survive.”

The scientists also evaluated the fineness of the sediment, meaning the sizes of individual particles of dirt, dust and sand. Curiosity found larger grains near the edges of the lake where sediments from incoming rivers and streams would have fed it, and smaller ones in what would have been the deep lakebed, which is consistent with particles dropping out of the water as the current slows down. “We could tell something was going on,” Hurowitz said in a statement. “What was causing iron minerals to be one flavor in one part of the lake and another flavor in another part of the lake? We had an ‘Aha!’ moment when we realized that the mineral information and the bedding-thickness information mapped perfectly onto each other in a way you would expect from a stratified lake with a chemical boundary between shallow water and deeper water.”

Sunday, January 18, 2009

A United States Army UH-60 Black Hawk helicopter crashed Monday (before 3:00 pm CST) after takeoff at Duncan Field at Campus of Texas A&M University, during a routine mission flight shuttling cadets from the university to Camp Swift. Two active-duty soldiers were killed in the crash, and four Army National Guard soldiers were injured.

Second Lt. Zachary Cook, 22, a native of Lufkin, Texas and a December 2008 graduate of Texas A&M University, was killed in the incident. Cook was a member of the Reserve Officers Training Corps cadre at Texas A&M University and also graduated from Lufkin High School. U.S. Rep. Chet Edwards on Wednesday paid tribute to Cook on the floor of the U.S. Congress. “His loss brings a great sadness to his family and friends, the extended Texas A&M family, and the Army, all of us deprived of this patriotic citizen who was dedicated to serving our great nation in uniform,” he said. Edwards is a Democratic Party member of the United States House of Representatives from the 17th District of Texas, based about Waco.

The crash also killed Sgt. Charles C. Mitts, 42, of Spring, Texas. He died about 9 p.m. Wednesday night at Memorial Hermann Hospital, said hospital spokeswoman Ann Brimberry. Mitts was the oldest of five men on board the ill-fated helicopter. He was assigned to Iraq from September 2006 to September 2007 with Company C of the 1st Battalion, 108th Aviation Regiment, based in Topeka, Kansas. Mitts was posthumously promoted from his present rank, Chief Master Sgt. Gonda Moncada announced.

The three others on board the UH-60 Black Hawk were injured in the accident. The pilot, Chief Warrant Officer 2 Matthew J. Smith, 41, of Leander, and 1st Lt. Ellis W. Taylor, 31, of Buda, were in stable condition Thursday at Brooke Army Medical Center. Sgt. Richard D. Ravenscraft, 24, of Austin, also was initially listed as critical but upgraded to stable in College Station.

The accident is under investigation by the Combat Readiness/Safety Center in Fort Rucker, Alabama, home of the U.S. Army Aviation Center. “They have a reputation for extreme thoroughness and quickness,” said Texas Guard Capt. Adam Collett. The probe team will review the wrecked helicopter and debris scattered on Duncan Field next to Duncan Dining Hall, near the Corps of Cadets field on the school’s College Station campus, about 100 miles northwest of Houston, Texas. “Every piece the way it landed is still in place,” said Texas Army National Guard Chief Master Sgt. Gonda Moncada, adding that investigators began the expert examination of evidence Wednesday morning.

As part of a five-ship training exercise, the Blackhawk helicopter was performing a training demonstration for about 190 Corps of Cadets in the ROTC Rudder’s Rangers Annual Winter Field Training Exercises. It was also used to transfer the students to Duncan Field just off George Bush Drive. When the helicopter was attempting to take off, a rudder reportedly malfunctioned. “At first, it looked like he was hot-dogging and then very quickly it was obvious he was in trouble and not messing around. All of a sudden he dropped straight back down into the ground,” Scott Walker Walker, publications manager for the A&M Association of Former Students said. “There was a bunch of people on Duncan Field and everyone went running and diving for cover,” he added. The aircraft entered a rotational spin upon take off and plummeted down on its tail boom, with its cabin section largely intact.

The chopper will be transferred to the Austin Aviation Support Facility, where it is was based. Some parts of the Blackhawk will also be sent to the Corpus Christi Army Depot for testing, Officials with Texas Military Forces officials said.

“Our thoughts and prayers go to the crew members involved in this tragedy, and especially to the family and friends of the crew member who reportedly died as a result of injuries sustained in the crash,” A&M President Elsa Murano stated.

The UH-60 Black Hawk is a four-bladed, twin-engine, medium-lift utility helicopter manufactured by Sikorsky Aircraft. It is a utility tactical transport helicopter that replaces the UH-1 “Huey” and has been in use since 1979.It was based at the Austin Army Aviation Support Facility at Austin-Bergstrom International Airport. The aircraft’s soldiers came from Austin and San Antonio. They were part of the 36th Combat Aviation Brigade, at Austin’s Camp Mabry.

The Campus of Texas A&M University, also known as ‘Aggieland’, is located in College Station, Texas, USA. College Station is a city in Brazos County, Texas, situated in Central Texas. It is located in the heart of the Brazos Valley. Aggieland is centrally located within of three of the 10 largest cities in the United States and 75% of the Texas and Louisiana populations. Southside of the campus contains halls both for the Corps of Cadets members and “non-regs”. Facilities for the Corps of Cadets are located in the Quadrangle, or “The Quad”, an area consisting of dormitories, Duncan Dining Hall, and the Corps training fields.

Friday, May 26, 2006

Rail services between Melbourne and Adelaide in Australia are expected to be disrupted until early next week following a fatal crash between a truck and freight train in Lismore, Victoria 170 Km (105 miles) South-West of Melbourne.

The B-Double truck hit the side of a 1,375 metre long freight train at a level crossing at 7:13 a.m. AEST on Thursday in heavy fog, derailing two locomotives and 44 goods wagons. Victorian police said that the truck had been wedged beneath the wreckage of the train.

The driver of the truck, thought to be a 34-year-old man from Wedderburn in Victoria’s North-West died in the crash. The train driver and an observer escaped uninjured. Police said it could take a number of days to retrieve the truck driver’s body. “It could possibly take days to retrieve the body” a Victorian police spokesperson said.

Great Southern Railways, which operates “The Overland” passenger train service between Melbourne and Adelaide said it expected rail services to be disrupted up until early next week. The company will transfer passengers to bus services or allow them to claim a full refund.

The crash will also disrupt freight services between Melbourne and Adelaide.

Local residents and the Victorian opposition are blaming the crash on the level crossing itself, which has no booms, lights or bells.

Rob Dennis, a local resident said the level crossing is the cause of the crash, as it is not fitted with boom gates or flashing lights.

“And it’s a blind turn for anything in a large vehicle,” he said.

Terry Mulder, the opposition’s transport spokesperson said the Bracks Government should have spent part of the $750 million allocated to fast rail projects to upgrading level crossings in Victoria.

“The State Labor Government has wasted $750 million on fast rail projects,” Mr Mulder said.

Mr Mulder said that Victoria has 2,274 level crossings, 1,468 which have no warning systems in place.