Tag:

radiation

1st Trade Show for Pro Corporate Gift Appointments in New Caledonia

by Chief editor of world-today-news.com April 14, 2023

written by Chief editor of world-today-news.com

Created on 04/14/23
Updated on 04/14/23

The CMA-NC in an approach in favor of the local economy and to allow craft businesses to develop their turnover by facilitating customer relations, organizes this 1st trade show for “pro corporate gift appointments”.

This show brings together in one place a thirty Caledonian suppliers : craftsmen, manufacturers and service providers who offer special offers to works councils, associations, institutions or advertising agencies.

For this occasion, the exhibitors have concocted promotional offers adapted to professionals in search of new ideas for their staff, their customers or their distinguished guests: for cceremonial gifts, end-of-year gifts, bespoke or customizable goodies and advertising products. These offers may also relate to themed introductory workshops, courses or events, etc. …enhancing know-how.

A unique event in New Caledonia that allows you to choose quality, originality, local and artisanal!

April 14, 2023 0 comments

Health

Concern over heart disease, radiation treatment for breast cancer, lowering concerns with ‘breathholding’

by Chief editor of world-today-news.com February 23, 2023

written by Chief editor of world-today-news.com

Breast cancer has a very high incidence. If you look at the ‘2019 National Cancer Registration Project Annual Report’, breast cancer is the most common cancer after thyroid cancer in women. Fortunately, it is a cancer with a high survival rate, with a 5-year survival rate of 93.6% from 2015 to 2019.

As the survival rate is high and the survival period is long, interest in the quality of life of patients after breast cancer treatment is growing. Among these, the biggest concern for patients is cardiovascular disease.

The standard treatment for breast cancer is surgery and radiation therapy, and radiation therapy is essential to prevent recurrence after surgery. Radiation therapy has many advantages because it is non-invasive and has few side effects and complications.

According to the research team of the Department of Cardiology at Hallym University Dongtan Sacred Heart Hospital, the incidence of cardiovascular disease reached 17% in the high-risk group after 7 years of breast cancer treatment. Radiation therapy to the left breast is a major risk factor affecting the occurrence of cardiovascular disease. This is because there is a high possibility that nearby major coronary arteries will be exposed to radiation during radiation treatment of the left breast where the heart is located.

According to a famous paper, ‘Risk of Ischemic Heart Disease in Women after Radiotherapy for Breast Cancer’, published in The NEW ENGLAND JOURNAL of MEDICNE in 2013, The incidence of coronary artery disease increased by 7.4% for every 1Gy increase in radiation dose delivered to the heart.

In the midst of this, Hallym University Dongtan Sacred Heart Hospital (Hospital Director Lee Seong-ho) is implementing radiation therapy to lower the probability of heart disease during radiation therapy for left breast cancer.

The Department of Radiation Oncology at Hallym University Dongtan Sacred Heart Hospital is performing Breath Holding radiation therapy to minimize the amount of radiation entering the heart during left breast radiation therapy.

In this treatment, patients undergoing radiation therapy on the left breast are treated while holding their breath while inhaling. When you breathe in, the lungs expand and the diaphragm descends, moving the irradiated area away from the heart.

When receiving radiation therapy, the actual irradiation time is about 30 to 40 seconds, and if the radiation is irradiated in 10-second intervals, it is possible for the patient to receive treatment while holding his breath.

For accurate radiation irradiation, a surface-guided radiation therapy technique using ‘Align RT’, a radiation therapy auxiliary device from Vision RT, is used.

During the pre-radiation simulation treatment, the patient inhales and holds the breath, takes a CT scan, and designs the radiation treatment. Then, in the treatment room, Align RT identifies the movement of the patient’s body surface in real time and performs radiation treatment. During the pre-CT scan, if the posture error is large compared to the patient’s body surface, the treatment is automatically stopped, and the patient’s posture error can be checked in increments of 0.1 mm. With this surface-guided radiation therapy technique, radiation can be irradiated avoiding the heart after calculating the exact position and angle when the patient holds and holds their breath.

This treatment takes a lot of time and requires a lot of effort from the medical staff because you have to hold your breath, take a radiation simulation CT, and keep the patient’s posture during treatment. The average radiation treatment time is 5 minutes, but the breath holding radiation treatment takes 10 to 15 minutes, 2 to 3 times longer than this.

Professor Ha Bo-ram of the Department of Radiation Oncology said, “Despite the development of modern radiation treatment technology, due to the anatomical location of the heart, low-dose radiation is still being irradiated to the heart during radiotherapy for left breast cancer, raising concerns about cardiovascular disease.” In the case of patients, the survival period is long and cardiovascular disease can appear even after 15 to 20 years, so breath-holding therapy is being implemented for all left breast cancer patients to improve the quality of life of patients.”

Reporter Jang Jong-ho bellho@sportschosun.com

February 23, 2023 0 comments

Entertainment

Nadine Al-Rassi returns to Cyrine Abdel Nour: she misleads you to radiate love

by Chief editor of world-today-news.com February 21, 2023

written by Chief editor of world-today-news.com

Lebanese singer Nadine Al-Rassi sent a touching message to her colleague, actress Cyrine Abdel Nour, on the occasion of her birthday.

And Nadine wrote in a tweet on Twitter: “May it return to you, my moon, and mislead you to radiate love, my kindest, kindest, and most beautiful heart, and you also saw my life, my sister, hand in hand.”

The followers interacted extensively with the tweet, wishing Cyrine a happy birthday, and expressing their admiration for the friendship between the two artists.

May you return, my moon, and you radiate love, the kindest, kindest, and most beautiful heart and face you have ever seen in my life, my sister ♥️🙏🏻
Hand in hand 🙏🏻♥️ @CyrineAbdlNour
Happy birthday Queen 👸 pic.twitter.com/OKNHTifVoO

— Nadine elrassi (@NadineElRassi) February 21, 2023

February 21, 2023 0 comments

World

An Australian mining company lost a radioactive capsule

by Chief editor of world-today-news.com January 29, 2023

written by Chief editor of world-today-news.com

A mining corporation apologized Sunday for the loss of a highly radioactive mine capsule over a 1,400-kilometer stretch in Western Australia earlier in January, the AP reported.

Authorities are searching parts of the road in search of the small but dangerous substance.

The capsule was part of a device, which is believed to have fallen off a truck while being transported between Desert Mine and the city of Perth on January 10. The lorry transporting the capsule arrived at a depot in Perth on 16 January. The emergency services were notified of the missing capsule on January 25.

Western Australia’s emergency services called on other Australian states and the federal government for support in locating the pod as they lack equipment. The capsule measures 8 millimeters by 6 millimeters and people are being warned that it may have unknowingly lodged in their car tyres. She emits dangerous amounts of radiation and may cause skin burns or cancer.

The CEO of mining giant Rio Tinto Iron Ore, Simon Trott, said that the company takes the incident very seriously and has apologized for causing public concern.

“We recognize that this is obviously very concerning and we regret the alarm it has caused in the Western Australian community, Trott said. As well as fully supporting the relevant authorities, we have launched our own investigation to find out how the capsule was lost in transit.”

The police determined the incident as an accident and no charges are likely to be filed.

The authorities they ruled out a theft at the depot before the box was opened on Wednesday.

Experts say that the capsule cannot be a weapon.

January 29, 2023 0 comments

Technology

Braving intense radiation.. Parker Probe is the first mission to touch the sun

by Chief editor of world-today-news.com December 14, 2022

written by Chief editor of world-today-news.com

The Parker Solar Probe has made its 14th close flyby of the Sun as part of its ongoing quest to unlock our star’s secrets.

Early in the morning of Sunday, December 11, the NASA spacecraft approached the closest point to the surface of the sun, also known as the photosphere, at a distance of about 5.3 million miles (8.5 million km). , braving intense radiation and intense heat to gather data about the atmosphere, the outermost part of the star, called the “halo” or “crown.”

Scientists have estimated the exact time of closest approach to the sun, or perihelion, to be around 8:16 a.m. EDT (1:16 p.m. GMT), as the spacecraft is traveling at a staggering speed of about 364.639 miles per hour (586.829 km /h). ). This speed is 200 times faster than a bullet fired from a pistol.

The Dec. 11 perihelion won’t be as close as the Parker Solar Probe, which was launched aboard a Delta 4 Heavy rocket from Cape Canaveral in August 2018.

During the next flyby, the spacecraft will advance towards the sun and eventually pass close to it, 6,115,500 km from the surface. It is seven times closer to the sun than any previous spacecraft and about 10 times closer to the sun than the planet Mercury, and the Parker Solar Probe will experience temperatures as high as 2,500 degrees Fahrenheit (1,400 degrees Celsius).

To withstand these extreme conditions, the spacecraft is equipped with a 4.5-inch (11.43 cm) thick carbon composite shield that maintains its scientific payload at room temperature.

One of the Parker Solar Probe’s main goals is to study the corona, the outermost layer of the sun’s atmosphere, and gather data that can help solve one of the sun’s oldest mysteries: why the sun’s atmosphere is hotter than its surface. ?

Theories of stellar physics indicate that pressure increases deeper within the star’s plasma, and the star becomes hotter. But Halo challenges that theory. Though fragile and diffuse, the plasma in this layer is much hotter than the plasma on the Sun’s surface, the photosphere below the corona.

Temperatures in the corona are 2 million Fahrenheit (1.1 million degrees Celsius) and higher, and despite the fact that 1,000 miles (1,600 kilometers) below them, the photosphere is 10 million times denser and reaches temperatures up to 10,000 Fahrenheit (5,500 degrees Celsius) .

The corona is difficult to study from Earth because the light it emits dims the brighter light from the photosphere, meaning the corona is only visible during a total solar eclipse, when the moon blocks light from the photosphere (scientists can also use special tools to replicate the effect).

Hence the need for the Parker Solar Probe to be “close” to our star to better understand the corona, which is also responsible for the release of the solar wind, a stream of charged particles that here can interfere with communications and energy infrastructure on earth .

Since the sun is the only star close enough to be studied in this way, learning more about it will also help scientists understand much more distant stellar objects.

The solar probe will reach its next fifteenth close to the sun on March 17, 2023, and will also reach about 5.3 million miles (8.5 million kilometers) above the sun’s surface.

Later in the year, the spacecraft will swing close to Venus to adjust its trajectory near the sun as the mission comes to an end in 2025, having completed 24 scheduled flybys of the sun during the mission.

December 14, 2022 0 comments

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