Archives: ‘Sci/Tech’ Category

Simroid (a.k.a. ‘Pain Girl’) on TV

27 Mar 2008

Simroid, a.k.a. Ita-girl --

Simroid, the silicone-skinned, pneumatically-powered female patient robot designed to help train dental students, recently appeared on the Fuji TV show Idainaru Miraizukan. (Watch video.)

In addition to highlighting Simroid's ability to interact with dentists and react to mouth pain, the show features an interview with Dr. Naotake Shibui of the Nippon Dental University in Tokyo, who helped develop the robot with engineers from Kokoro Co., Ltd. According to the interview, Simroid is modeled after a 28-year-old woman, and her fear of dentists and sensitivity to pain have earned her the nickname "Pain Girl" (Ita-gaaru). Asked why Simroid is female, Shibui explains that female patients must be treated with more sensitivity than male patients. With sensors embedded in her chest, Simroid can teach dentists-in-training to pay close attention to where they place their elbows.

Simroid's primary purpose is to help dental students improve their patient communication skills.

Scientists teach rodents to use rake

26 Mar 2008

Degu learns to use rake --

Rodents can learn how to wield tools with the proper training, according to new research from Japan?s Institute of Physical and Chemical Research (RIKEN). In a series of experiments conducted over a 60-day period, researchers taught six degus (small rat-like rodents) to use a miniature rake to obtain food. Each degu was placed on one side of a fence with gaps large enough for its front legs to fit through, and sunflower seeds were placed out of reach on the opposite side. The rake was placed nearby, and after 60 days of practice, all six degus learned to use it to pull the sunflower seeds to within reach. This is the first known case in which rodents have been taught to use tools.

Watch a short video news report.

[Source: FNN/Yahoo!]

ApriPoko robot learns to work the remote

25 Mar 2008

ApriPoco --

Researchers at Toshiba have developed a talking robot that functions as a voice-operated universal remote control for multiple home appliances. The 2.3 kilogram (5 lb), 21 x 27 centimeter (8 x 11 in) prototype robot, named ApriPoko, learns how to operate various remote controls by watching and asking questions. ApriPoko sits in the living room and waits for you to use a remote control. When its sensors detect infrared rays emitted by a remote, the robot speaks up: "What did you just do?" it asks. Tell ApriPoko what you did ("I turned on the stereo" or "I changed to channel 321," for example), and it commits the details to memory. Then, next time you want to turn on the stereo or change the channel, simply tell ApriPoko and it transmits the appropriate IR signal directly to the device. The prototype robot is still in the development and testing phase, but Toshiba hopes to have a viable product soon.

[Source: Asahi]

Mythical 16th-century disease critters

12 Mar 2008

Long ago in Japan, human illness was commonly believed to be the work of tiny malevolent creatures inside the body. Harikikigaki, a book of medical knowledge written in 1568 by a now-unknown resident of Osaka, introduces 63 of these creepy-crawlies and describes how to fight them with acupuncture and herbal remedies. The Kyushu National Museum, which owns the original copy of Harikikgaki, claims the book played an important role in spreading traditional Chinese medicine in Japan. Here are a few of the beasties found in the book.

Harikikigaki --
Kanshaku

Kanshaku, an angry-faced bug found in the liver, aggravates its host by violently thrusting itself upward toward the chest cavity. Infected people tend to shout with rage or engage in activities to blow off steam, and they crave acidic food and avoid eating oily food. Acupuncture can stop Kanshaku.

Harikikigaki --
Hizo-no-kesshaku, Kanmushi

Hizo-no-kesshaku causes problems with the spleen, but it can be cured by ingesting shazenji (plantago seed).

Kanmushi is a harmful parasite that embeds itself in the spine, causing it to curve backward. Infected people also develop an appetite for spicy food. The herbs mokko (Saussureae radix) and byakujutsu (Atractylodes macrocephala Koidz) are effective in fighting off Kanmushi.

Harikikigaki --
Gyochu, Haimushi

Gyochu, a deadly critter responsible for leprosy, acts as a messenger to the underworld. On the night of Koshin-no-hi (an important date occurring every 60 days on the Chinese calendar), Gyochu leaves the body to visit Enma-daio (Lord of the Underworld) and tell him of your misdeeds. Enma-daio is known to punish people for bad behavior by reducing their remaining time on earth.

Haimushi, a creature with an appetite for rice, causes problems with the lungs. If the Haimushi exits the lungs and cannot find its way back, it turns into a fiery will-o'-wisp (hitodama) and the person dies. The herb byakujutsu is effective in warding off Haimushi.

Harikikigaki --
Kagemushi

Male and female versions of the Kagemushi appear during sexual intercourse. When the two bugs come together, their wiry legs get tangled up, the female bug spits up red fluid, and the male spits up white.

Harikikigaki --
Hizo-no-kasamushi, Akuchu

Hizo-no-kasamushi, a worm found in the spleen, causes its host to gain or lose weight based on the amount of food it eats. The herbs agi (giant fennel) and gajutsu (purple turmeric) are effective in controlling Hizo-no-kasamushi.

Akuchu, also found in the spleen, consumes rice eaten by the host. Drinking mokko is an effective antidote.

Harikikigaki --
Haishaku, Kakuran-no-mushi

Haishaku, a critter found in the upper lungs, has a nose that opens directly into its chest. People infected with Haishaku hate pleasant smells and foul smells, but are fond of strong, fishy smells. Other symptoms include extreme sadness and a craving for spicy food. Gentle, shallow acupuncture is an effective treatment.

Kakuran-no-mushi, a worm with a black head and red body, invades the stomach and causes vomiting and diarrhea. It is known to come up into the host's mouth and poke its head out. Try to grab it, and you choke for air, but let go and it returns peacefully to the stomach. The herbs goshuyu (Euodia rutaecarpa), shazenshi and mokko are useful in fighting Kakuran-no-mushi.

Harikikigaki --
Umakan

Umakan, a beastie that causes heart problems, infects people outdoors in the scorching sun or in the vicinity of fire. Acupuncture is an effective treatment.

Harikikigaki --
Koseu

Koseu (Kosho), a snake-like critter with a scruffy white beard, wears a hat that protects it from medicine. It likes to drink sweet sake and it can speak.

Harikikigaki --
Kameshaku

Kameshaku eats rice and wears an umbrella-like hat that blocks medicine. It can be destroyed by eating wild beans.

Harikikigaki --
Koshi-no-mushi

Koshi-no-mushi flies into a host's body and makes its way to the lower back area, where it causes diarrhea, sweating and chest pains. The herbs mokko and kanzo (licorice root) are an effective treatment.

Harikikigaki --
Chishaku, Hizo-no-mushi

Chishaku (Taibyo-no-kesshaku) appears in the stomach after a severe illness. It can be controlled by applying shukusha (wild siamese cardamom).

Hizo-no-mushi is found in the spleen. It causes dizziness and hot flashes when it grabs the host's muscles with its long arms and claws. It can be stopped by ingesting mokko and daio (rhubarb).

Harikikigaki --
Kiukan and Kishaku

Kiukan (Gyukan) lives in the chest and acts up at meal time. This critter is difficult to get rid of, but acupuncture is an effective treatment.

Kishaku is a dark red beastie that causes its host to develop an unhealthy appetite for oily food. It can be stopped by eating tiger stomach.

Harikikigaki --
Jinshaku

Jinshaku (Honton) resembles a tiny boar that runs wild through the body. Those infected with Jinshaku develop a weak pulse, a dark complexion, a craving for salty food, and bad breath. Acupuncture is an effective treatment.

Harikikigaki --
Hishaku, Hinosha

Hishaku is found in the spleen, most often in females. Symptoms include an overpowering appetite for sweets, a yellowish complexion, and a tendency to hum. It can be stopped with acupuncture around the navel.

Hinoshu, also found in the spleen, looks like a rock and remains dormant inside the body until the host visits a crowded sightseeing area, at which time Hinoshu causes dizziness by thrashing about and creating the sensation of rocks crashing against each other. Acupuncture is an effective treatment.

[Source: Kyushu National Museum]

Space boomerangs

07 Mar 2008

Do boomerangs return when thrown in zero-gravity? Japanese astronaut Takao Doi will soon find out by throwing some around inside the International Space Station.

Space boomerang --
Space boomerangs to be tested aboard ISS

When the Space Shuttle Endeavour launches on March 11, Doi will be carrying a pair of paper boomerangs presented by Yasuhiro Togai, a 2006 world boomerang champion and space enthusiast from Osaka. Togai, who long wondered how boomerangs would fly without the downward pull of gravity, suggested Doi conduct boomerang experiments in space after they met several years ago. Doi agreed, and Togai taught him how to throw. Togai believes the space boomerangs will spiral up and away without returning, but he says he is looking forward to the results.

[Source: Yomiuri]

Cyber Goggles: High-tech memory aid

04 Mar 2008

Smart goggles --

Researchers at the University of Tokyo have developed a smart video goggle system that records everything the wearer looks at, recognizes and assigns names to objects that appear in the video, and creates an easily searchable database of the recorded footage. Designed to function as a high-tech memory aid, these "Cyber Goggles" promise to make the act of losing your keys a thing of the past, according to head researcher professor Tatsuya Harada.

Cyber Goggles are equipped with a compact camera that feeds video to a computer worn on the user's back. The computer records the footage and relies on ultrahigh-speed image recognition processing software to analyze, name and file the objects that appear in the video. Later, when the user types in a keyword to search for a particular item, the corresponding video plays on a tiny LCD screen attached to the right-side lens, helping the user remember the location of the item in question.

In a demonstration at the University of Tokyo last week, 60 everyday items -- including a potted begonia, CD, hammer and cellphone -- were programmed into the Cyber Goggle memory. As the demonstrator walked around the room viewing and recording the various objects, the names of the items appeared on the goggle screen. The demonstrator was then able to do a search for the various items and retrieve the corresponding video.

In addition to functioning as a memory aid for the elderly, Cyber Goggles have a number of other potential uses, says professor Harada. For example, the image recognition processing technology can be used to sift through enormous amounts of video in search of specific images. It might also help in the development of robots with human-like abilities, he says.

[Sources: Asahi, Sankei]

Video: Cloud streets

27 Feb 2008

Cloud streets --

This video -- a follow-up to a previous post about strange cloud formations seen over the Sea of Okhotsk last summer -- provides a rare close-up bird's-eye view of cloud streets, which are created when convection currents cut low-lying cumulus into long, clean strips. According to the video narration, these clouds floated just over the sea surface, stood 300 meters tall and stretched for over 100 kilometers.

Laughometer measures aH

23 Feb 2008

Laugh measurement system -- For those who believe laughter is the best medicine, now there is a way to measure the dosage. Researchers at Kansai University have developed a machine that can scientifically measure the quantity of a person's laughter, as well as distinguish between the real and the fake.

The laughter measurement system, which the researchers say will help scientists conduct more detailed research into the physiological effects of laughter on the immune system, relies on a series of electrode sensors that monitor the tiny amounts of bioelectricity generated by certain muscles that flex when you chuckle. The sensors, which attach to a person's cheeks, chest and abdomen, take 3,000 measurements per second. Sensor data is relayed to a computer, where it is analyzed by special software that determines the nature of the laugh and assigns a numerical score based on the quantity.

The laughter quantity is expressed in terms of "aH" -- a unit of measurement developed by the research team. According to chief researcher Yoji Kimura, a Kansai University professor, 1 second of explosive laughter amounts to 5 aH.

The system distinguishes between real and fake laughter by closely monitoring the movement of the diaphragm -- the thin sheet of muscle extending across the bottom of the rib cage, which separates the chest organs from those of the abdomen. According to Kimura, the diaphragm does not vibrate significantly when a person pretends to laugh, even when the person's voice and facial expression appear genuine. On the other hand, when one laughs at something they truly find funny, the diaphragm generates 2 to 5 distinct vibrational waves per second.

At Kansai University on February 21, the researchers publicly demonstrated the system by measuring the laughter of a 30-something-year-old woman and her 5-year-old daughter as they watched a performance by Yoshimoto comedians. The mother, who apparently found no humor in the comedy routine, experienced only slightly more than 0 aH of laughter, while her amused daughter experienced a hearty 42 aH.

The researchers, who spent over a year developing the system, are aiming to create a portable version of the system for use in health and entertainment devices.

[Sources: CNet Japan, Asahi]

Robot buoy hunts down spilled oil

21 Feb 2008

SOTAB -- As long as oil is transported by sea, accidental spills will remain a threat to the marine environment. When an oil spill occurs, the cleanup response must be quick in order to minimize the environmental and economic impact. To help speed up the response, researchers at Osaka University are developing an autonomous marine robot that can track down spilled oil and provide real-time location data.

SOTAB 1 (Spilled Oil Tracking Autonomous Buoy 1) is a 110-kilogram (243 lb.) GPS-equipped robot that measures 2.72 meters (9 ft.) from top to bottom and 27 centimeters (11 in.) in diameter. It has imaging sensors that can spot floating globs of oil from a distance, as well as viscosity sensors that detect the presence of oil, and it includes a wind monitor, depth meter and water thermometer. When multiple robots are dropped into the water at regular intervals around an oil spill, they can provide a wealth of valuable data to cleanup crews and allow them to monitor a wide area.

Once in the water, SOTAB 1 begins searching for oil by reducing its buoyancy and diving underwater, where it trains its imaging sensors back up at the surface. When the robot sees something that looks like oil, it readjusts its buoyancy and floats back to the surface, using 4 fins to steer toward the oil slick. It then takes water samples and determines how much oil is present. As SOTAB 1 follows the oil around, it sends back real-time data about its location and the surrounding meteorological and oceanographic conditions.

Head researcher Naomi Kato, an underwater robotics engineering professor at Osaka University, says SOTAB 1 is still in the development phase, but he hopes to see it become commercially available in 2 to 3 years.

"We want to get the weight under 30 kilograms and extend the battery life to about 3 to 4 weeks," says Kato, who began working on the robot in 2006. "We would one day like to see these robots become standard equipment on oil tankers."

[Source: Asahi]