Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; MagpieRSS has a deprecated constructor in /home/wubwub/public_html/feed/magpierss-0.72/rss_parse.inc on line 34

Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; RSSCache has a deprecated constructor in /home/wubwub/public_html/feed/magpierss-0.72/rss_cache.inc on line 19
OK: Found an XML parser.
OK: Support for GZIP encoding.
OK: Support for character munging.

Notice: MagpieRSS [debug] Returning STALE object for http://dentistnewsnetwork.com/feed in /home/wubwub/public_html/feed/magpierss-0.72/rss_fetch.inc on line 243

Example Output

Channel: dentistnewsnetwork

RSS URL:

Parsed Results (var_dump'ed)

object(MagpieRSS)#6109 (23) {
  ["parser"]=>
  int(0)
  ["current_item"]=>
  array(0) {
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  ["items"]=>
  array(10) {
    [0]=>
    array(11) {
      ["title"]=>
      string(58) "Hydrogen-burning white dwarfs enjoy slow aging – NovLink"
      ["link"]=>
      string(117) "https://dentistnewsnetwork.com/health-science-news/2021/09/06/hydrogen-burning-white-dwarfs-enjoy-slow-aging-novlink/"
      ["dc"]=>
      array(1) {
        ["creator"]=>
        string(12) "Betty Foster"
      }
      ["pubdate"]=>
      string(31) "Mon, 06 Sep 2021 20:41:07 +0000"
      ["category"]=>
      string(21) "Health & Science News"
      ["guid"]=>
      string(117) "https://dentistnewsnetwork.com/health-science-news/2021/09/06/hydrogen-burning-white-dwarfs-enjoy-slow-aging-novlink/"
      ["description"]=>
      string(97) "Journal Reference: Chen, J., Ferraro, F.R., Cadelano, M. et al. Slowly cooling white dwarfs in..."
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Journal Reference:

  1. Chen, J., Ferraro, F.R., Cadelano, M. et al. Slowly cooling white dwarfs in M13 from stable hydrogen burning. Nat Astron, 2021 DOI: 10.1038/s41550-021-01445-6

“We have found the first observational evidence that white dwarfs can still undergo stable thermonuclear activity,” explained Jianxing Chen of the Alma Mater Studiorum Università di Bologna and the Italian National Institute for Astrophysics, who led this research. “This was quite a surprise, as it is at odds with what is commonly believed.”

White dwarfs are the slowly cooling stars which have cast off their outer layers during the last stages of their lives. They are common objects in the cosmos; roughly 98% of all the stars in the Universe will ultimately end up as white dwarfs, including our own Sun [1]. Studying these cooling stages helps astronomers understand not only white dwarfs, but also their earlier stages as well.

To investigate the physics underpinning white dwarf evolution, astronomers compared cooling white dwarfs in two massive collections of stars: the globular clusters M3 and M13 [2]. These two clusters share many physical properties such as age and metallicity [3] but the populations of stars which will eventually give rise to white dwarfs are different. In particular, the overall colour of stars at an evolutionary stage known as the Horizontal Branch are bluer in M13, indicating a population of hotter stars. This makes M3 and M13 together a perfect natural laboratory in which to test how different populations of white dwarfs cool.

“The superb quality of our Hubble observations provided us with a full view of the stellar populations of the two globular clusters,” continued Chen. “This allowed us to really contrast how stars evolve in M3 and M13.”

Using Hubble’s Wide Field Camera 3 the team observed M3 and M13 at near-ultraviolet wavelengths, allowing them to compare more than 700 white dwarfs in the two clusters. They found that M3 contains standard white dwarfs which are simply cooling stellar cores. M13, on the other hand, contains two populations of white dwarfs: standard white dwarfs and those which have managed to hold on to an outer envelope of hydrogen, allowing them to burn for longer and hence cool more slowly.

Comparing their results with computer simulations of stellar evolution in M13, the researchers were able to show that roughly 70% of the white dwarfs in M13 are burning hydrogen on their surfaces, slowing down the rate at which they are cooling.

This discovery could have consequences for how astronomers measure the ages of stars in the Milky Way. The evolution of white dwarfs has previously been modelled as a predictable cooling process. This relatively straightforward relationship between age and temperature has led astronomers to use the white dwarf cooling rate as a natural clock to determine the ages of star clusters, particularly globular and open clusters. However, white dwarfs burning hydrogen could cause these age estimates to be inaccurate by as much as 1 billion years.

“Our discovery challenges the definition of white dwarfs as we consider a new perspective on the way in which stars get old,” added Francesco Ferraro of the Alma Mater Studiorum Università di Bologna and the Italian National Institute for Astrophysics, who coordinated the study. “We are now investigating other clusters similar to M13 to further constrain the conditions which drive stars to maintain the thin hydrogen envelope which allows them to age slowly”.

Notes

[1] The Sun is only 4.6 billion years through its roughly 10-billion-year lifetime. Once it exhausts hydrogen in its core, the Sun will swell into a red giant, engulfing the inner planets and searing the Earth’s surface. It will then throw off its outer layers, and the exposed core of the Sun will be left as a slowly cooling white dwarf. This stellar ember will be incredibly dense, packing a large fraction of the mass of the Sun into a roughly Earth-sized sphere.

[2] M3 contains roughly half a million stars and lies in the constellation Canes Venatici. M13 — occasionally known as the Great Globular Cluster in Hercules — contains slightly fewer stars, only several hundred thousand. White dwarfs are often used to estimate the ages of globular clusters, and so a significant amount of Hubble time has been dedicated to exploring white dwarfs in old and densely populated globular clusters. Hubble directly observed white dwarfs in globular star clusters for the first time in 2006.

[3] Astronomers use the word “metallicity” to describe the proportion of a star which is composed of elements other than hydrogen and helium. The vast majority of matter in the Universe is either hydrogen or helium — to take the Sun as an example, 74.9% of its mass is hydrogen, 23.8% is helium, and the remaining 1.3% is a mixture of all the other elements, which astronomers refer to as “metals.”

The Hubble Space Telescope is a project of international cooperation between ESA and NASA.

Hydrogen-burning white dwarfs enjoy slow aging

" } ["summary"]=> string(97) "Journal Reference: Chen, J., Ferraro, F.R., Cadelano, M. et al. Slowly cooling white dwarfs in..." ["atom_content"]=> string(6158) "

Journal Reference:

  1. Chen, J., Ferraro, F.R., Cadelano, M. et al. Slowly cooling white dwarfs in M13 from stable hydrogen burning. Nat Astron, 2021 DOI: 10.1038/s41550-021-01445-6

“We have found the first observational evidence that white dwarfs can still undergo stable thermonuclear activity,” explained Jianxing Chen of the Alma Mater Studiorum Università di Bologna and the Italian National Institute for Astrophysics, who led this research. “This was quite a surprise, as it is at odds with what is commonly believed.”

White dwarfs are the slowly cooling stars which have cast off their outer layers during the last stages of their lives. They are common objects in the cosmos; roughly 98% of all the stars in the Universe will ultimately end up as white dwarfs, including our own Sun [1]. Studying these cooling stages helps astronomers understand not only white dwarfs, but also their earlier stages as well.

To investigate the physics underpinning white dwarf evolution, astronomers compared cooling white dwarfs in two massive collections of stars: the globular clusters M3 and M13 [2]. These two clusters share many physical properties such as age and metallicity [3] but the populations of stars which will eventually give rise to white dwarfs are different. In particular, the overall colour of stars at an evolutionary stage known as the Horizontal Branch are bluer in M13, indicating a population of hotter stars. This makes M3 and M13 together a perfect natural laboratory in which to test how different populations of white dwarfs cool.

“The superb quality of our Hubble observations provided us with a full view of the stellar populations of the two globular clusters,” continued Chen. “This allowed us to really contrast how stars evolve in M3 and M13.”

Using Hubble’s Wide Field Camera 3 the team observed M3 and M13 at near-ultraviolet wavelengths, allowing them to compare more than 700 white dwarfs in the two clusters. They found that M3 contains standard white dwarfs which are simply cooling stellar cores. M13, on the other hand, contains two populations of white dwarfs: standard white dwarfs and those which have managed to hold on to an outer envelope of hydrogen, allowing them to burn for longer and hence cool more slowly.

Comparing their results with computer simulations of stellar evolution in M13, the researchers were able to show that roughly 70% of the white dwarfs in M13 are burning hydrogen on their surfaces, slowing down the rate at which they are cooling.

This discovery could have consequences for how astronomers measure the ages of stars in the Milky Way. The evolution of white dwarfs has previously been modelled as a predictable cooling process. This relatively straightforward relationship between age and temperature has led astronomers to use the white dwarf cooling rate as a natural clock to determine the ages of star clusters, particularly globular and open clusters. However, white dwarfs burning hydrogen could cause these age estimates to be inaccurate by as much as 1 billion years.

“Our discovery challenges the definition of white dwarfs as we consider a new perspective on the way in which stars get old,” added Francesco Ferraro of the Alma Mater Studiorum Università di Bologna and the Italian National Institute for Astrophysics, who coordinated the study. “We are now investigating other clusters similar to M13 to further constrain the conditions which drive stars to maintain the thin hydrogen envelope which allows them to age slowly”.

Notes

[1] The Sun is only 4.6 billion years through its roughly 10-billion-year lifetime. Once it exhausts hydrogen in its core, the Sun will swell into a red giant, engulfing the inner planets and searing the Earth’s surface. It will then throw off its outer layers, and the exposed core of the Sun will be left as a slowly cooling white dwarf. This stellar ember will be incredibly dense, packing a large fraction of the mass of the Sun into a roughly Earth-sized sphere.

[2] M3 contains roughly half a million stars and lies in the constellation Canes Venatici. M13 — occasionally known as the Great Globular Cluster in Hercules — contains slightly fewer stars, only several hundred thousand. White dwarfs are often used to estimate the ages of globular clusters, and so a significant amount of Hubble time has been dedicated to exploring white dwarfs in old and densely populated globular clusters. Hubble directly observed white dwarfs in globular star clusters for the first time in 2006.

[3] Astronomers use the word “metallicity” to describe the proportion of a star which is composed of elements other than hydrogen and helium. The vast majority of matter in the Universe is either hydrogen or helium — to take the Sun as an example, 74.9% of its mass is hydrogen, 23.8% is helium, and the remaining 1.3% is a mixture of all the other elements, which astronomers refer to as “metals.”

The Hubble Space Telescope is a project of international cooperation between ESA and NASA.

Hydrogen-burning white dwarfs enjoy slow aging

" ["date_timestamp"]=> int(1630960867) } [1]=> array(11) { ["title"]=> string(89) "Once Mekel Collaborates with Scaller at the 360 ​​Virtual Concert : Okezone Celebrity" ["link"]=> string(152) "https://dentistnewsnetwork.com/celebrity/2021/09/06/once-mekel-collaborates-with-scaller-at-the-360-%e2%80%8b%e2%80%8bvirtual-concert-okezone-celebrity/" ["dc"]=> array(1) { ["creator"]=> string(16) "Sandy Richardson" } ["pubdate"]=> string(31) "Mon, 06 Sep 2021 20:29:24 +0000" ["category"]=> string(63) "CelebritycelebrityCollaboratesConcertMekelOkezoneScallerVirtual" ["guid"]=> string(152) "https://dentistnewsnetwork.com/celebrity/2021/09/06/once-mekel-collaborates-with-scaller-at-the-360-%e2%80%8b%e2%80%8bvirtual-concert-okezone-celebrity/" ["description"]=> string(100) "JAKARTA – Once Mekel and Scaler collaborated by holding a virtual concert. Both are present..." ["content"]=> array(1) { ["encoded"]=> string(2973) "

JAKARTA – Once Mekel and Scaler collaborated by holding a virtual concert. Both are present in the third episode of Supermusic Nextzone Live 360 ​​Virtual Concert on Friday 10 September 2021.

Once Mekel and Scaller’s concerts will spoil the eyes. The concert will carry the theme “Light Spaces and Earth” which is a depiction of the interaction between space and light. This theme is also a representation of Once Mekel and Scaler who are two musicians with different dimensions. The intimate concert nuance will also be felt thanks to the visual treatment of the 360-degree camera angle that is the hallmark of Supermusic Nextzone Live 360 ​​Virtual Concert.

Also Read:

Isyana Sarasvati to Once Mekel Appears in the Documentary Film Talking Forestra

Once Mekel Repacked Single Sabda Alam Almarhum Chrisye

Supermusic as a one-stop dynamic musictainment media that is up to date for young people continues to innovate to provide the best. The third edition of Supermusic Nextzone Supermusic Nextzone Live 360 ​​Virtual Concert promises a different experience for music lovers. Here Supermusic will realize a phenomenal collaboration between Once Mekel and Scaler. This will definitely be an unforgettable moment for all audiences,” said Supermusic representative Adjie Aditya Purwaka as the organizer.

Once has admitted that he can’t wait to start the collaborative action on the Supermusic Nextzone Live 360 ​​Virtual Concert stage. The former Dewa vocalist has also undergone workshop sessions and jamming with Scaler for a smooth collaboration on stage later. The plan is that Once will bring a number of line-ups of his hits such as “Surely For You”, “One of a Million”, and “Kucinta You As It Is”.

“I’m really excited to be a part of the Supermusic Nextzone Live 360 ​​Virtual Concert, because for me the concept is unique, there is a collaboration concept that is carried, and has an idealistic side in music. Besides that, this concert also provides an opportunity for musicians to perform their work in a special format. A privilege that is very rare and will bring a special sensation to the audience,” said Once.

“Our collaboration will definitely be exciting and special. Scaler will perform my song and I will perform theirs. For me, this collaboration will be an important moment,” said Once.

Supermusic Nextzone Live 360 ​​Virtual Concert offers 2 viewing modes, namely regular concert and 360 virtual concert. Regular concert mode can be accessed and watched live for free! While the 360 ​​virtual concert mode can be obtained through purchasing merchandise at the Official Superstore.

(aln)

" } ["summary"]=> string(100) "JAKARTA – Once Mekel and Scaler collaborated by holding a virtual concert. Both are present..." ["atom_content"]=> string(2973) "

JAKARTA – Once Mekel and Scaler collaborated by holding a virtual concert. Both are present in the third episode of Supermusic Nextzone Live 360 ​​Virtual Concert on Friday 10 September 2021.

Once Mekel and Scaller’s concerts will spoil the eyes. The concert will carry the theme “Light Spaces and Earth” which is a depiction of the interaction between space and light. This theme is also a representation of Once Mekel and Scaler who are two musicians with different dimensions. The intimate concert nuance will also be felt thanks to the visual treatment of the 360-degree camera angle that is the hallmark of Supermusic Nextzone Live 360 ​​Virtual Concert.

Also Read:

Isyana Sarasvati to Once Mekel Appears in the Documentary Film Talking Forestra

Once Mekel Repacked Single Sabda Alam Almarhum Chrisye

Supermusic as a one-stop dynamic musictainment media that is up to date for young people continues to innovate to provide the best. The third edition of Supermusic Nextzone Supermusic Nextzone Live 360 ​​Virtual Concert promises a different experience for music lovers. Here Supermusic will realize a phenomenal collaboration between Once Mekel and Scaler. This will definitely be an unforgettable moment for all audiences,” said Supermusic representative Adjie Aditya Purwaka as the organizer.

Once has admitted that he can’t wait to start the collaborative action on the Supermusic Nextzone Live 360 ​​Virtual Concert stage. The former Dewa vocalist has also undergone workshop sessions and jamming with Scaler for a smooth collaboration on stage later. The plan is that Once will bring a number of line-ups of his hits such as “Surely For You”, “One of a Million”, and “Kucinta You As It Is”.

“I’m really excited to be a part of the Supermusic Nextzone Live 360 ​​Virtual Concert, because for me the concept is unique, there is a collaboration concept that is carried, and has an idealistic side in music. Besides that, this concert also provides an opportunity for musicians to perform their work in a special format. A privilege that is very rare and will bring a special sensation to the audience,” said Once.

“Our collaboration will definitely be exciting and special. Scaler will perform my song and I will perform theirs. For me, this collaboration will be an important moment,” said Once.

Supermusic Nextzone Live 360 ​​Virtual Concert offers 2 viewing modes, namely regular concert and 360 virtual concert. Regular concert mode can be accessed and watched live for free! While the 360 ​​virtual concert mode can be obtained through purchasing merchandise at the Official Superstore.

(aln)

" ["date_timestamp"]=> int(1630960164) } [2]=> array(11) { ["title"]=> string(73) "Threat of catastrophic supervolcano eruptions is ever-present – NovLink" ["link"]=> string(132) "https://dentistnewsnetwork.com/health-science-news/2021/09/06/threat-of-catastrophic-supervolcano-eruptions-is-ever-present-novlink/" ["dc"]=> array(1) { ["creator"]=> string(12) "Betty Foster" } ["pubdate"]=> string(31) "Mon, 06 Sep 2021 19:40:25 +0000" ["category"]=> string(21) "Health & Science News" ["guid"]=> string(132) "https://dentistnewsnetwork.com/health-science-news/2021/09/06/threat-of-catastrophic-supervolcano-eruptions-is-ever-present-novlink/" ["description"]=> string(102) "Journal Reference: Adonara E. Mucek, Martin Danišík, Shanaka L. de Silva, Daniel P. Miggins, Axel..." ["content"]=> array(1) { ["encoded"]=> string(4339) "

Journal Reference:

  1. Adonara E. Mucek, Martin Danišík, Shanaka L. de Silva, Daniel P. Miggins, Axel K. Schmitt, Indyo Pratomo, Anthony Koppers, Jack Gillespie. Resurgence initiation and subsolidus eruption of cold carapace of warm magma at Toba Caldera, Sumatra. Communications Earth & Environment, 2021; 2 (1) DOI: 10.1038/s43247-021-00260-1

Associate Professor Martin Danišík, lead Australian author from the John de Laeter Centre based at Curtin University, said supervolcanoes often erupted several times with intervals of tens of thousands of years between the big eruptions but it was not known what happened during the dormant periods.

“Gaining an understanding of those lengthy dormant periods will determine what we look for in young active supervolcanoes to help us predict future eruptions,” Associate Professor Danišík said.

“Super-eruptions are among the most catastrophic events in Earth’s history, venting tremendous amounts of magma almost instantaneously. They can impact global climate to the point of tipping the Earth into a ‘volcanic winter’, which is an abnormally cold period that may result in widespread famine and population disruption.

“Learning how supervolcanoes work is important for understanding the future threat of an inevitable super-eruption, which happen about once every 17,000 years.”

Associate Professor Danišík said the team investigated the fate of magma left behind after the Toba super-eruption 75,000 years ago, using the minerals feldspar and zircon, which contain independent records of time based on the accumulation of gasses argon and helium as time capsules in the volcanic rocks.

“Using these geochronological data, statistical inference and thermal modelling, we showed that magma continued to ooze out within the caldera, or deep depression created by the eruption of magma, for 5000 to 13,000 years after the super-eruption, and then the carapace of solidified left-over magma was pushed upward like a giant turtle shell,” Associate Professor Danišík said.

“The findings challenged existing knowledge and studying of eruptions, which normally involves looking for liquid magma under a volcano to assess future hazard. We must now consider that eruptions can occur even if no liquid magma is found underneath a volcano — the concept of what is ‘eruptible’ needs to be re-evaluated.

“While a super-eruption can be regionally and globally impactful and recovery may take decades or even centuries, our results show the hazard is not over with the super-eruption and the threat of further hazards exists for many thousands of years after.

“Learning when and how eruptible magma accumulates, and in what state the magma is in before and after such eruptions, is critical for understanding supervolcanoes.”

The study was led by researchers from Oregon State University, and co-authored by researchers from Heidelberg University, the Geological Agency of Indonesia, and by Dr Jack Gillespie from Curtin’s School of Earth and Planetary Sciences and The Institute for Geoscience Research (TIGeR), Curtin’s flagship earth sciences research institute.

Threat of catastrophic supervolcano eruptions is ever-present

" } ["summary"]=> string(102) "Journal Reference: Adonara E. Mucek, Martin Danišík, Shanaka L. de Silva, Daniel P. Miggins, Axel..." ["atom_content"]=> string(4339) "

Journal Reference:

  1. Adonara E. Mucek, Martin Danišík, Shanaka L. de Silva, Daniel P. Miggins, Axel K. Schmitt, Indyo Pratomo, Anthony Koppers, Jack Gillespie. Resurgence initiation and subsolidus eruption of cold carapace of warm magma at Toba Caldera, Sumatra. Communications Earth & Environment, 2021; 2 (1) DOI: 10.1038/s43247-021-00260-1

Associate Professor Martin Danišík, lead Australian author from the John de Laeter Centre based at Curtin University, said supervolcanoes often erupted several times with intervals of tens of thousands of years between the big eruptions but it was not known what happened during the dormant periods.

“Gaining an understanding of those lengthy dormant periods will determine what we look for in young active supervolcanoes to help us predict future eruptions,” Associate Professor Danišík said.

“Super-eruptions are among the most catastrophic events in Earth’s history, venting tremendous amounts of magma almost instantaneously. They can impact global climate to the point of tipping the Earth into a ‘volcanic winter’, which is an abnormally cold period that may result in widespread famine and population disruption.

“Learning how supervolcanoes work is important for understanding the future threat of an inevitable super-eruption, which happen about once every 17,000 years.”

Associate Professor Danišík said the team investigated the fate of magma left behind after the Toba super-eruption 75,000 years ago, using the minerals feldspar and zircon, which contain independent records of time based on the accumulation of gasses argon and helium as time capsules in the volcanic rocks.

“Using these geochronological data, statistical inference and thermal modelling, we showed that magma continued to ooze out within the caldera, or deep depression created by the eruption of magma, for 5000 to 13,000 years after the super-eruption, and then the carapace of solidified left-over magma was pushed upward like a giant turtle shell,” Associate Professor Danišík said.

“The findings challenged existing knowledge and studying of eruptions, which normally involves looking for liquid magma under a volcano to assess future hazard. We must now consider that eruptions can occur even if no liquid magma is found underneath a volcano — the concept of what is ‘eruptible’ needs to be re-evaluated.

“While a super-eruption can be regionally and globally impactful and recovery may take decades or even centuries, our results show the hazard is not over with the super-eruption and the threat of further hazards exists for many thousands of years after.

“Learning when and how eruptible magma accumulates, and in what state the magma is in before and after such eruptions, is critical for understanding supervolcanoes.”

The study was led by researchers from Oregon State University, and co-authored by researchers from Heidelberg University, the Geological Agency of Indonesia, and by Dr Jack Gillespie from Curtin’s School of Earth and Planetary Sciences and The Institute for Geoscience Research (TIGeR), Curtin’s flagship earth sciences research institute.

Threat of catastrophic supervolcano eruptions is ever-present

" ["date_timestamp"]=> int(1630957225) } [3]=> array(11) { ["title"]=> string(88) "Hobby Cover, this is how Mario Kahitna respects the owner of the song: Okezone Celebrity" ["link"]=> string(139) "https://dentistnewsnetwork.com/celebrity/2021/09/06/hobby-cover-this-is-how-mario-kahitna-respects-the-owner-of-the-song-okezone-celebrity/" ["dc"]=> array(1) { ["creator"]=> string(16) "Sandy Richardson" } ["pubdate"]=> string(31) "Mon, 06 Sep 2021 19:28:52 +0000" ["category"]=> string(64) "CelebritycelebrityCoverHobbyKahitnaMarioOkezoneownerrespectsSong" ["guid"]=> string(139) "https://dentistnewsnetwork.com/celebrity/2021/09/06/hobby-cover-this-is-how-mario-kahitna-respects-the-owner-of-the-song-okezone-celebrity/" ["description"]=> string(98) "JAKARTA – Mario Ginanjar, vocalist of Kahitna also highlighted the rise of song covers on..." ["content"]=> array(1) { ["encoded"]=> string(2977) "

JAKARTA – Mario Ginanjar, vocalist of Kahitna also highlighted the rise of song covers on social media. A series of problems arise from the rise of singers who cover songs and upload them on social media.

In practice it is not easy for creators to contact and manage sync licenses with song publishers. To solve this problem, YouTube provides a system called Content ID or digital fingerprint that will analyze every video uploaded via YouTube to determine whether the video contains copyrighted material, from audio recordings to compositions to videos.

Also Read:

Wants to be a heartache healer, Mario Ginanjar gives birth to a song Do not disturb

Mario ‘Kahitna’: Beautiful Woman Doesn’t Smell, Has Minuses

Therefore, with the Content ID system, YouTube will automatically claim a video on behalf of the copyright holder. With Content ID, if someone uploads a cover song, YouTube will know that they are not the copyright holder of the song. The publisher of the song as the copyright holder can claim the song and all proceeds from the video will belong to the publisher of the song, not the creator.

Seeing the conditions that do not provide motivation and incentives for creators to work, V-Entertainment, part of the largest entertainment industry collaboration platform in Indonesia Eventtori, launched the VID (Virtual Indonesia Validation and Distribution) initiative which will bridge creators with song publishers so that creators have space freedom and protection in producing cover songs.

“The reason I joined was as a tribute to my idols from the past. Through VID I can make official covers of songs,” said Mario Ginanjar, vocalist of Kahitna, who joined as a creator in the VID program.

“We bridge creators with publishers by providing a catalog of songs whose synchronization license has been taken care of. Creators can simply contact us to find out which songs can be covered without worrying about copyright issues. They will also receive revenue sharing from YouTube monetization. Everything is based on transparent cooperation so that both creators and publishers can benefit from a cover content uploaded on YouTube,” said Ivan Edbert, V-Entertainment Business Manager during the celebration of the launch of the VID program at the Eventori office.

In the early stages, Ivan continued, V-Entertainment has collaborated with the record label Aquarius Pustaka Musik and Demajors Independent Music Industry as the owner of Content ID. In the spirit of collaboration, it is hoped that musicians and content creators who are members of the VID initiative can also support each other by mentioning each other, swiping up, or using other social media features.

(aln)

" } ["summary"]=> string(98) "JAKARTA – Mario Ginanjar, vocalist of Kahitna also highlighted the rise of song covers on..." ["atom_content"]=> string(2977) "

JAKARTA – Mario Ginanjar, vocalist of Kahitna also highlighted the rise of song covers on social media. A series of problems arise from the rise of singers who cover songs and upload them on social media.

In practice it is not easy for creators to contact and manage sync licenses with song publishers. To solve this problem, YouTube provides a system called Content ID or digital fingerprint that will analyze every video uploaded via YouTube to determine whether the video contains copyrighted material, from audio recordings to compositions to videos.

Also Read:

Wants to be a heartache healer, Mario Ginanjar gives birth to a song Do not disturb

Mario ‘Kahitna’: Beautiful Woman Doesn’t Smell, Has Minuses

Therefore, with the Content ID system, YouTube will automatically claim a video on behalf of the copyright holder. With Content ID, if someone uploads a cover song, YouTube will know that they are not the copyright holder of the song. The publisher of the song as the copyright holder can claim the song and all proceeds from the video will belong to the publisher of the song, not the creator.

Seeing the conditions that do not provide motivation and incentives for creators to work, V-Entertainment, part of the largest entertainment industry collaboration platform in Indonesia Eventtori, launched the VID (Virtual Indonesia Validation and Distribution) initiative which will bridge creators with song publishers so that creators have space freedom and protection in producing cover songs.

“The reason I joined was as a tribute to my idols from the past. Through VID I can make official covers of songs,” said Mario Ginanjar, vocalist of Kahitna, who joined as a creator in the VID program.

“We bridge creators with publishers by providing a catalog of songs whose synchronization license has been taken care of. Creators can simply contact us to find out which songs can be covered without worrying about copyright issues. They will also receive revenue sharing from YouTube monetization. Everything is based on transparent cooperation so that both creators and publishers can benefit from a cover content uploaded on YouTube,” said Ivan Edbert, V-Entertainment Business Manager during the celebration of the launch of the VID program at the Eventori office.

In the early stages, Ivan continued, V-Entertainment has collaborated with the record label Aquarius Pustaka Musik and Demajors Independent Music Industry as the owner of Content ID. In the spirit of collaboration, it is hoped that musicians and content creators who are members of the VID initiative can also support each other by mentioning each other, swiping up, or using other social media features.

(aln)

" ["date_timestamp"]=> int(1630956532) } [4]=> array(11) { ["title"]=> string(123) "Over 200 health journals call on world leaders to address ‘catastrophic harm to health’ from climate change – NovLink" ["link"]=> string(176) "https://dentistnewsnetwork.com/health-science-news/2021/09/06/over-200-health-journals-call-on-world-leaders-to-address-catastrophic-harm-to-health-from-climate-change-novlink/" ["dc"]=> array(1) { ["creator"]=> string(12) "Betty Foster" } ["pubdate"]=> string(31) "Mon, 06 Sep 2021 17:37:19 +0000" ["category"]=> string(21) "Health & Science News" ["guid"]=> string(176) "https://dentistnewsnetwork.com/health-science-news/2021/09/06/over-200-health-journals-call-on-world-leaders-to-address-catastrophic-harm-to-health-from-climate-change-novlink/" ["description"]=> string(122) "Journal Reference: Lukoye Atwoli, Abdullah H Baqui, Thomas Benfield, Raffaella Bosurgi, Fiona Godlee, Stephen Hancocks,..." ["content"]=> array(1) { ["encoded"]=> string(5824) "

Journal Reference:

  1. Lukoye Atwoli, Abdullah H Baqui, Thomas Benfield, Raffaella Bosurgi, Fiona Godlee, Stephen Hancocks, Richard Horton, Laurie Laybourn-Langton, Carlos Augusto Monteiro, Ian Norman, Kirsten Patrick, Nigel Praities, Marcel G M Olde Rikkert, Eric J Rubin, Peush Sahni, Richard Smith, Nicholas J Talley, Sue Turale, Damián Vázquez. Call for emergency action to limit global temperature increases, restore biodiversity, and protect health. BMJ, 2021; n1734 DOI: 10.1136/bmj.n1734

While recent targets to reduce emissions and conserve biodiversity are welcome, they are not enough and are yet to be matched with credible short and longer term plans, it warns.

The editorial is published in leading titles from every continent including The BMJ, The Lancet, the New England Journal of Medicine, the East African Medical Journal, the Chinese Science Bulletin, the National Medical Journal of India, the Medical Journal of Australia, and 50 BMJ specialist journals including BMJ Global Health and Thorax.

Never have so many journals come together to make the same statement, reflecting the severity of the climate change emergency now facing the world.

The editorial is being published ahead of the UN General Assembly next week, one of the last international meetings taking place before the (COP26) climate conference in Glasgow, UK in November. This is a crucial moment to urge all countries to deliver enhanced and ambitious climate plans to honour the goals of the Paris Agreement, the international treaty on climate change adopted by 195 countries in 2015.

For decades, health professionals and health journals have been warning of the severe and growing impacts on health from climate change and the destruction of nature .

The impact on health and survival of extreme temperatures, destructive weather events, and the widespread degradation of essential ecosystems are just some of the impacts that we are seeing more of due to a changing climate.

They disproportionately affect the most vulnerable, including children and the elderly, ethnic minorities, poorer communities and those with underlying health conditions.

The editorial urges governments to intervene to transform societies and economies, for example, by supporting the redesign of transport systems, cities, production and distribution of food, markets for financial investments, and health systems.

Substantial investment will be needed, but this will have huge positive health and economic benefits, including high quality jobs, reduced air pollution, increased physical activity, and improved housing and diet, explain the authors.

Crucially, cooperation hinges on wealthy nations doing more, they say. In particular, countries that have disproportionately created the environmental crisis must do more to support low and middle income countries to build cleaner, healthier, and more resilient societies.

“As health professionals, we must do all we can to aid the transition to a sustainable, fairer, resilient, and healthier world,” they write. “We, as editors of health journals, call for governments and other leaders to act, marking 2021 as the year that the world finally changes course.”

Dr Fiona Godlee, Editor-in-Chief of The BMJ, and one of the co-authors of the editorial, said: “Health professionals have been on the frontline of the covid-19 crisis and they are united in warning that going above 1.5C and allowing the continued destruction of nature will bring the next, far deadlier crisis. Wealthier nations must act faster and do more to support those countries already suffering under higher temperatures. 2021 has to be the year the world changes course — our health depends on it.”

Seye Abimbola, Editor-in-Chief of BMJ Global Health, said: “What we must do to tackle pandemics, health inequities, and climate change is the same – global solidarity and action that recognise that, within and across nations our destinies are inextricably linked, just as human health is inextricably linked to the health of the planet.”

Professor Alan Smyth, Joint Editor-in-Chief of Thorax, said: “Global warming affects the future of our planet and right now it is affecting the lung health of all of its inhabitants across all ages, from young to old. This editorial is a call to world leaders at COP26 to take immediate and proportionate action to limit the rise in global temperatures.”

Over 200 health journals call on world leaders to address ‘catastrophic harm to health’ from climate change

" } ["summary"]=> string(122) "Journal Reference: Lukoye Atwoli, Abdullah H Baqui, Thomas Benfield, Raffaella Bosurgi, Fiona Godlee, Stephen Hancocks,..." ["atom_content"]=> string(5824) "

Journal Reference:

  1. Lukoye Atwoli, Abdullah H Baqui, Thomas Benfield, Raffaella Bosurgi, Fiona Godlee, Stephen Hancocks, Richard Horton, Laurie Laybourn-Langton, Carlos Augusto Monteiro, Ian Norman, Kirsten Patrick, Nigel Praities, Marcel G M Olde Rikkert, Eric J Rubin, Peush Sahni, Richard Smith, Nicholas J Talley, Sue Turale, Damián Vázquez. Call for emergency action to limit global temperature increases, restore biodiversity, and protect health. BMJ, 2021; n1734 DOI: 10.1136/bmj.n1734

While recent targets to reduce emissions and conserve biodiversity are welcome, they are not enough and are yet to be matched with credible short and longer term plans, it warns.

The editorial is published in leading titles from every continent including The BMJ, The Lancet, the New England Journal of Medicine, the East African Medical Journal, the Chinese Science Bulletin, the National Medical Journal of India, the Medical Journal of Australia, and 50 BMJ specialist journals including BMJ Global Health and Thorax.

Never have so many journals come together to make the same statement, reflecting the severity of the climate change emergency now facing the world.

The editorial is being published ahead of the UN General Assembly next week, one of the last international meetings taking place before the (COP26) climate conference in Glasgow, UK in November. This is a crucial moment to urge all countries to deliver enhanced and ambitious climate plans to honour the goals of the Paris Agreement, the international treaty on climate change adopted by 195 countries in 2015.

For decades, health professionals and health journals have been warning of the severe and growing impacts on health from climate change and the destruction of nature .

The impact on health and survival of extreme temperatures, destructive weather events, and the widespread degradation of essential ecosystems are just some of the impacts that we are seeing more of due to a changing climate.

They disproportionately affect the most vulnerable, including children and the elderly, ethnic minorities, poorer communities and those with underlying health conditions.

The editorial urges governments to intervene to transform societies and economies, for example, by supporting the redesign of transport systems, cities, production and distribution of food, markets for financial investments, and health systems.

Substantial investment will be needed, but this will have huge positive health and economic benefits, including high quality jobs, reduced air pollution, increased physical activity, and improved housing and diet, explain the authors.

Crucially, cooperation hinges on wealthy nations doing more, they say. In particular, countries that have disproportionately created the environmental crisis must do more to support low and middle income countries to build cleaner, healthier, and more resilient societies.

“As health professionals, we must do all we can to aid the transition to a sustainable, fairer, resilient, and healthier world,” they write. “We, as editors of health journals, call for governments and other leaders to act, marking 2021 as the year that the world finally changes course.”

Dr Fiona Godlee, Editor-in-Chief of The BMJ, and one of the co-authors of the editorial, said: “Health professionals have been on the frontline of the covid-19 crisis and they are united in warning that going above 1.5C and allowing the continued destruction of nature will bring the next, far deadlier crisis. Wealthier nations must act faster and do more to support those countries already suffering under higher temperatures. 2021 has to be the year the world changes course — our health depends on it.”

Seye Abimbola, Editor-in-Chief of BMJ Global Health, said: “What we must do to tackle pandemics, health inequities, and climate change is the same – global solidarity and action that recognise that, within and across nations our destinies are inextricably linked, just as human health is inextricably linked to the health of the planet.”

Professor Alan Smyth, Joint Editor-in-Chief of Thorax, said: “Global warming affects the future of our planet and right now it is affecting the lung health of all of its inhabitants across all ages, from young to old. This editorial is a call to world leaders at COP26 to take immediate and proportionate action to limit the rise in global temperatures.”

Over 200 health journals call on world leaders to address ‘catastrophic harm to health’ from climate change

" ["date_timestamp"]=> int(1630949839) } [5]=> array(11) { ["title"]=> string(51) "half a million euros more a month to greet the fans" ["link"]=> string(101) "https://dentistnewsnetwork.com/sports/2021/09/06/half-a-million-euros-more-a-month-to-greet-the-fans/" ["dc"]=> array(1) { ["creator"]=> string(12) "Betty Foster" } ["pubdate"]=> string(31) "Mon, 06 Sep 2021 17:32:19 +0000" ["category"]=> string(72) "Sportingseurosfansgreetgreet the fansmillionmonthNeymarPSGshock contract" ["guid"]=> string(101) "https://dentistnewsnetwork.com/sports/2021/09/06/half-a-million-euros-more-a-month-to-greet-the-fans/" ["description"]=> string(101) "Friendliness, punctuality and kindness are important virtues, but if your name is Neymar they cost..." ["content"]=> array(1) { ["encoded"]=> string(3197) "

Friendliness, punctuality and kindness are important virtues, but if your name is Neymar they cost and also very expensive. Paris Saint Germain pays half a million euros per month to make say «ciao» to Brazilian talent to his fans. Not to play football well, score and let his team win, for that he already earns 3 million net a month, but to greet the fans.

Read also> The former coach Ventura is optimistic: «We will go to the World Cup. Difficulties in September are normal “

It is just one of the many clauses contained within the shock contract which Neymar signed with PSG in 2017 and which will run until 2023. A contract that he contributed to upset the world of football and to drive the economic evaluations than any other player. A millionaire contract that has altered the economic equilibrium and which has contributed to inflate a bubble that is ever closer to bursting.

To reveal the crazy figures behind the Brazilian star’s passage from Barcelona to PSG, the Spanish newspaper took care of it El Mundo and the Corriere della Sera spread the image of the page in which the contract speaks of a “good etico” what is he doing infuriate the world of football and beyond.

In addition to the 3 million euros net per month, the Paris Saint Germain also pays into Neymar’s account 541,680 euros gross per month for say hello and be nice to the fans. O Ney in exchange for this astronomical figure must be “courteous, punctual and kind“. It must always be “available with fans greeting and thanking them before and after each match. Needs to avoid every negative comment on his team and against those who work there or support him ».

A clause that must not be respected only in interviews with television and newspapers, but also on their own social channels. The ethical bonus, then, also includes one last note: “the absolute prohibition of any kind of political or religious propaganda that could cause damage to the club “.

If any of the individual points should not be respected the ethical bonus will not be paid to Neymar who has been since playing in France particularly smiling and friendly with everyone, even when he loses.


Last updated: Monday 6 September 2021, 19:20




© REPRODUCTION RESERVED

.

" } ["summary"]=> string(101) "Friendliness, punctuality and kindness are important virtues, but if your name is Neymar they cost..." ["atom_content"]=> string(3197) "

Friendliness, punctuality and kindness are important virtues, but if your name is Neymar they cost and also very expensive. Paris Saint Germain pays half a million euros per month to make say «ciao» to Brazilian talent to his fans. Not to play football well, score and let his team win, for that he already earns 3 million net a month, but to greet the fans.

Read also> The former coach Ventura is optimistic: «We will go to the World Cup. Difficulties in September are normal “

It is just one of the many clauses contained within the shock contract which Neymar signed with PSG in 2017 and which will run until 2023. A contract that he contributed to upset the world of football and to drive the economic evaluations than any other player. A millionaire contract that has altered the economic equilibrium and which has contributed to inflate a bubble that is ever closer to bursting.

To reveal the crazy figures behind the Brazilian star’s passage from Barcelona to PSG, the Spanish newspaper took care of it El Mundo and the Corriere della Sera spread the image of the page in which the contract speaks of a “good etico” what is he doing infuriate the world of football and beyond.

In addition to the 3 million euros net per month, the Paris Saint Germain also pays into Neymar’s account 541,680 euros gross per month for say hello and be nice to the fans. O Ney in exchange for this astronomical figure must be “courteous, punctual and kind“. It must always be “available with fans greeting and thanking them before and after each match. Needs to avoid every negative comment on his team and against those who work there or support him ».

A clause that must not be respected only in interviews with television and newspapers, but also on their own social channels. The ethical bonus, then, also includes one last note: “the absolute prohibition of any kind of political or religious propaganda that could cause damage to the club “.

If any of the individual points should not be respected the ethical bonus will not be paid to Neymar who has been since playing in France particularly smiling and friendly with everyone, even when he loses.


Last updated: Monday 6 September 2021, 19:20




© REPRODUCTION RESERVED

.

" ["date_timestamp"]=> int(1630949539) } [6]=> array(11) { ["title"]=> string(74) "Had defended Saipul Jamil, Inul Daratista: I’m sorry : Okezone Celebrity" ["link"]=> string(120) "https://dentistnewsnetwork.com/celebrity/2021/09/06/had-defended-saipul-jamil-inul-daratista-im-sorry-okezone-celebrity/" ["dc"]=> array(1) { ["creator"]=> string(16) "Sandy Richardson" } ["pubdate"]=> string(31) "Mon, 06 Sep 2021 17:27:23 +0000" ["category"]=> string(57) "CelebritycelebrityDaratistadefendedInulJamilOkezoneSaipul" ["guid"]=> string(120) "https://dentistnewsnetwork.com/celebrity/2021/09/06/had-defended-saipul-jamil-inul-daratista-im-sorry-okezone-celebrity/" ["description"]=> string(103) "JAKARTA – Singer Inul Daratista finally opened his voice regarding the public protest after he..." ["content"]=> array(1) { ["encoded"]=> string(2589) "

JAKARTA – Singer Inul Daratista finally opened his voice regarding the public protest after he gave support to his friend, Saipul Jamil. As is known, Dewi Perssik’s ex-husband immediately appeared on TV after being released from prison.

“I apologize profusely, if in my impressions and comments about the Fulan (Saipul Jamil) really hurt you all,” said the singer of the Crocodile Buntung on Instagram, Monday (6/9/2021).

Inul Daratista admitted that what he did did not have any tendency. Even if he seems defensive, it is because of their relationship as good friends.

In his continued statement, the wife of Adam Suseno emphasized that there was no intention to privilege Saipul Jamil. Also, he was not involved with the appearance of Saipul on television.

“Regardless of whether Fulan is given a stage and opportunity on TV or not, it’s not my capacity and business, because I’m not the owner of a TV station. Once again, I apologize profusely to all netizens,” said Inul Daratista.

Also read: Saipul Jamil Returns to Show on TV, Kemal Palevi: When will it be a deterrent?

Saipul Jamil finally breathed free air and left Cipinang Prison, East Jakarta, on September 2 last. He served 5 years in prison for the case of obscenity and bribery of the Registrar of the North Jakarta District Court.

Saipul Jamil was released from prison on September 2, 2021. (Photo: MNC Portal Indonesia)

His freedom as an ex-convict who was warmly welcomed and invited to television stations also attracted controversy. This had made Inul Daratista defend Saipul Jamil so as not to bring up his best friend’s past.

“Message for netizens, or people who bully my brother, I don’t really like it because he’s already ‘schooled’. So there is no need to add to yesterday’s problems, “said Inul Daratista some time ago.*

Also read: Benny Simanjuntak admits Jonathan Frizzy converted to Islam for Dhena Devanka

" } ["summary"]=> string(103) "JAKARTA – Singer Inul Daratista finally opened his voice regarding the public protest after he..." ["atom_content"]=> string(2589) "

JAKARTA – Singer Inul Daratista finally opened his voice regarding the public protest after he gave support to his friend, Saipul Jamil. As is known, Dewi Perssik’s ex-husband immediately appeared on TV after being released from prison.

“I apologize profusely, if in my impressions and comments about the Fulan (Saipul Jamil) really hurt you all,” said the singer of the Crocodile Buntung on Instagram, Monday (6/9/2021).

Inul Daratista admitted that what he did did not have any tendency. Even if he seems defensive, it is because of their relationship as good friends.

In his continued statement, the wife of Adam Suseno emphasized that there was no intention to privilege Saipul Jamil. Also, he was not involved with the appearance of Saipul on television.

“Regardless of whether Fulan is given a stage and opportunity on TV or not, it’s not my capacity and business, because I’m not the owner of a TV station. Once again, I apologize profusely to all netizens,” said Inul Daratista.

Also read: Saipul Jamil Returns to Show on TV, Kemal Palevi: When will it be a deterrent?

Saipul Jamil finally breathed free air and left Cipinang Prison, East Jakarta, on September 2 last. He served 5 years in prison for the case of obscenity and bribery of the Registrar of the North Jakarta District Court.

Saipul Jamil was released from prison on September 2, 2021. (Photo: MNC Portal Indonesia)

His freedom as an ex-convict who was warmly welcomed and invited to television stations also attracted controversy. This had made Inul Daratista defend Saipul Jamil so as not to bring up his best friend’s past.

“Message for netizens, or people who bully my brother, I don’t really like it because he’s already ‘schooled’. So there is no need to add to yesterday’s problems, “said Inul Daratista some time ago.*

Also read: Benny Simanjuntak admits Jonathan Frizzy converted to Islam for Dhena Devanka

" ["date_timestamp"]=> int(1630949243) } [7]=> array(11) { ["title"]=> string(62) "New laser-based microphone calibration measures up – NovLink" ["link"]=> string(121) "https://dentistnewsnetwork.com/health-science-news/2021/09/06/new-laser-based-microphone-calibration-measures-up-novlink/" ["dc"]=> array(1) { ["creator"]=> string(12) "Betty Foster" } ["pubdate"]=> string(31) "Mon, 06 Sep 2021 16:36:20 +0000" ["category"]=> string(21) "Health & Science News" ["guid"]=> string(121) "https://dentistnewsnetwork.com/health-science-news/2021/09/06/new-laser-based-microphone-calibration-measures-up-novlink/" ["description"]=> string(118) "Journal Reference: Randall P. Wagner, Richard A. Allen, Qian Dong. Laser-based comparison calibration of laboratory..." ["content"]=> array(1) { ["encoded"]=> string(10027) "

Journal Reference:

  1. Randall P. Wagner, Richard A. Allen, Qian Dong. Laser-based comparison calibration of laboratory standard microphones. JASA Express Letters, 2021; 1 (8): 082803 DOI: 10.1121/10.0005919

The technique, which uses lasers to measure the velocity at which a microphone’s diaphragm vibrates, performs well enough to overtake one of the main calibration methods used at NIST and throughout industry. Someday, a laser-based method could be commercialized to become a completely new way to do extremely sensitive, low-uncertainty calibrations of microphones in the field, in places such as factories and power plants. Potential users of such a commercial system could include organizations that monitor workplace or community noise levels or the condition of machinery via sound.

“There’s nothing like this on the market now, not that I’m aware of,” said NIST scientist Randall Wagner. “It would be far in the future — a pie-in-the-sky kind of thing — but I see this work as opening the door to commercial applications.”

Their work was published online this week in JASA Express Letters.

Traditional “comparison calibrations” involve comparing a customer’s microphone to a laboratory standard microphone that has already been calibrated by other means. The new laser method demonstrated by NIST has lower uncertainties and is roughly 30% faster than the traditional comparison method currently used at NIST to calibrate customers’ microphones.

“People have been looking for a highly accurate calibration method that uses lasers, and they haven’t found an approach that is competitive with the most accurate existing method,” said NIST scientist Richard Allen. “But now we’ve found a comparison calibration that is better than the ones used in common practice.”

The ‘Standard’ Standard

Sound is pressure waves traveling through a medium such as air. A microphone is a device that takes those pressure waves and turns them into an electrical signal.

To calibrate a microphone, researchers need to measure how sensitive it is to pressure waves. They start by calibrating a set of laboratory standard microphones using a technique called the “reciprocity method” — the gold standard for microphone calibrations.

In a reciprocity calibration, two microphones are connected to each other via a small hollow cylinder called an acoustic coupler. One microphone produces a sound that the other microphone picks up. After a measurement has been taken, the microphones’ functional positions can be swapped, with the transmitter acting as receiver and vice versa.

(And yes, the microphones are sometimes used to produce sounds rather than just receive them. Unlike the microphones you might use for a conference call or karaoke night, laboratory standard microphones are able to perform as either a receiver or as a transmitter — essentially a loudspeaker.)

This process is repeated several times using a total of three laboratory standard microphones. By exchanging the microphones’ roles between measurements, researchers can be sure of the sensitivity of each of the three microphones without the need for a previously calibrated microphone.

Once this master set of microphones has been calibrated, it can be used to directly calibrate customers’ microphones. Different laboratories use different methods to accomplish this goal, but at NIST the technique commonly used for high-accuracy calibration of customers’ microphones is a reciprocity-based “comparison” calibration. It’s called “reciprocity-based” because it uses the same setup as the reciprocity method, except that the newly calibrated microphone acts exclusively as the transmitter and the microphone being calibrated acts exclusively as the receiver.

It is this second type of calibration, the “comparison” calibration, that NIST scientists set out to test against the new laser-based method.

New Method: Less Is More

Traditional microphone calibration methods are acoustical — they rely on transmission of sound through a medium. In contrast, the new laser-based calibration method measures the physical vibrations of the diaphragm itself.

For their recent experiment, NIST researchers used a laser Doppler vibrometer, a commercial instrument that shines a laser beam onto the surface of a microphone whose diaphragm is vibrating at a set frequency. (See animation.)

The beam bounces off the surface of the diaphragm and is recombined with a reference laser beam. In this way, subtle shifts in frequency are measured. (These shifts in frequency work along the same principle as the Doppler effect, which causes that ambulance outside your window to sound higher-pitched as it approaches and lower-pitched as it moves away.) Researchers convert the signal from the vibrometer into a velocity, which tells them how fast the diaphragm was vibrating at that point on its surface.

To conduct the new test, NIST scientists used nine nominally identical laboratory standard microphones, each with an 18.6 millimeter diameter diaphragm, about the width of a postage stamp. All were tested at two frequencies, 250 hertz (for piano players, roughly the B note below middle C) and 1,000 hertz (two octaves higher than 250 hertz).

They began by measuring over the whole surface area of the diaphragms. They found that the velocity in the center of the diaphragms was significantly higher than near the edges, where there was practically no motion.

Ultimately, they discovered that the best approach was to use data from just a small section at the center of the diaphragms taking up only 3% of the total surface area. The idea of using just the central section came from a recent paper by a team of researchers from the Republic of Korea and Japan.

“The key to making the velocity measurements nice and repeatable is measuring in the center of the diaphragm,” Wagner said. “As you go further and further toward the edges, our measurements just weren’t very repeatable.”

As a final step, Wagner and Allen compared the microphone sensitivities they measured with the laser-based calibrations to measurements they had previously taken using the gold-standard reciprocity calibrations with the same set of microphones. The verdict?

“The numbers agreed very well,” Wagner said. “They were statistically indistinguishable from each other.”

Moreover, the uncertainties for the new laser method were impressive. For comparison: While the gold-standard reciprocity method has the lowest uncertainty at 0.03 decibels (dB), and the traditional reciprocity-based comparison method has an uncertainty of 0.08 dB, the laser-based comparison method has an uncertainty of just 0.05 dB.

Wagner and Allen say that the laser comparison method saves “significant time” primarily because it is performed in open air. In contrast, the traditional NIST way of doing a comparison at higher frequencies requires connecting two microphones with an acoustic coupler and then filling the coupler with hydrogen, which takes up to 20 minutes per test.

Next Steps

Wagner hopes that scientists will find a way to develop the laser-based system into a highly accurate primary calibration method that rivals or even outperforms the gold-standard reciprocity method. If successful, a primary laser-based method would be significantly faster, since the reciprocity method requires researchers to repeat the measurements multiple times with different combinations of microphones and acoustic couplers.

Meanwhile, Wagner thinks the laser method could someday be standardized by a standards organization.

“That would be a consensus stamp of acceptance,” Wagner said. Until then, he continued, “we have a lot of work left to do.”

In the coming months, he and Allen will be upgrading to a more sensitive laser Doppler vibrometer system and will begin expanding the types of microphones calibrated as well as the range of frequencies. They have applied for a provisional patent, and they will also try to turn the method into a suitable primary calibration technique.

“This first attempt was sort of an example of walking past the trees and seeing the really low-hanging fruit, and grabbing it,” Allen said.

Wagner says that this experiment is unusual in his experience. Vibrations are usually considered “problematic” when making acoustic measurements since they can lead to increased noise levels. But in this experiment, the vibration and acoustic measurements are connected by design.

“I’ve been at NIST 30 years, and I don’t recall a project that brought vibration and acoustics so closely together,” Wagner said.

Testing 1-2: New laser-based microphone calibration measures up

" } ["summary"]=> string(118) "Journal Reference: Randall P. Wagner, Richard A. Allen, Qian Dong. Laser-based comparison calibration of laboratory..." ["atom_content"]=> string(10027) "

Journal Reference:

  1. Randall P. Wagner, Richard A. Allen, Qian Dong. Laser-based comparison calibration of laboratory standard microphones. JASA Express Letters, 2021; 1 (8): 082803 DOI: 10.1121/10.0005919

The technique, which uses lasers to measure the velocity at which a microphone’s diaphragm vibrates, performs well enough to overtake one of the main calibration methods used at NIST and throughout industry. Someday, a laser-based method could be commercialized to become a completely new way to do extremely sensitive, low-uncertainty calibrations of microphones in the field, in places such as factories and power plants. Potential users of such a commercial system could include organizations that monitor workplace or community noise levels or the condition of machinery via sound.

“There’s nothing like this on the market now, not that I’m aware of,” said NIST scientist Randall Wagner. “It would be far in the future — a pie-in-the-sky kind of thing — but I see this work as opening the door to commercial applications.”

Their work was published online this week in JASA Express Letters.

Traditional “comparison calibrations” involve comparing a customer’s microphone to a laboratory standard microphone that has already been calibrated by other means. The new laser method demonstrated by NIST has lower uncertainties and is roughly 30% faster than the traditional comparison method currently used at NIST to calibrate customers’ microphones.

“People have been looking for a highly accurate calibration method that uses lasers, and they haven’t found an approach that is competitive with the most accurate existing method,” said NIST scientist Richard Allen. “But now we’ve found a comparison calibration that is better than the ones used in common practice.”

The ‘Standard’ Standard

Sound is pressure waves traveling through a medium such as air. A microphone is a device that takes those pressure waves and turns them into an electrical signal.

To calibrate a microphone, researchers need to measure how sensitive it is to pressure waves. They start by calibrating a set of laboratory standard microphones using a technique called the “reciprocity method” — the gold standard for microphone calibrations.

In a reciprocity calibration, two microphones are connected to each other via a small hollow cylinder called an acoustic coupler. One microphone produces a sound that the other microphone picks up. After a measurement has been taken, the microphones’ functional positions can be swapped, with the transmitter acting as receiver and vice versa.

(And yes, the microphones are sometimes used to produce sounds rather than just receive them. Unlike the microphones you might use for a conference call or karaoke night, laboratory standard microphones are able to perform as either a receiver or as a transmitter — essentially a loudspeaker.)

This process is repeated several times using a total of three laboratory standard microphones. By exchanging the microphones’ roles between measurements, researchers can be sure of the sensitivity of each of the three microphones without the need for a previously calibrated microphone.

Once this master set of microphones has been calibrated, it can be used to directly calibrate customers’ microphones. Different laboratories use different methods to accomplish this goal, but at NIST the technique commonly used for high-accuracy calibration of customers’ microphones is a reciprocity-based “comparison” calibration. It’s called “reciprocity-based” because it uses the same setup as the reciprocity method, except that the newly calibrated microphone acts exclusively as the transmitter and the microphone being calibrated acts exclusively as the receiver.

It is this second type of calibration, the “comparison” calibration, that NIST scientists set out to test against the new laser-based method.

New Method: Less Is More

Traditional microphone calibration methods are acoustical — they rely on transmission of sound through a medium. In contrast, the new laser-based calibration method measures the physical vibrations of the diaphragm itself.

For their recent experiment, NIST researchers used a laser Doppler vibrometer, a commercial instrument that shines a laser beam onto the surface of a microphone whose diaphragm is vibrating at a set frequency. (See animation.)

The beam bounces off the surface of the diaphragm and is recombined with a reference laser beam. In this way, subtle shifts in frequency are measured. (These shifts in frequency work along the same principle as the Doppler effect, which causes that ambulance outside your window to sound higher-pitched as it approaches and lower-pitched as it moves away.) Researchers convert the signal from the vibrometer into a velocity, which tells them how fast the diaphragm was vibrating at that point on its surface.

To conduct the new test, NIST scientists used nine nominally identical laboratory standard microphones, each with an 18.6 millimeter diameter diaphragm, about the width of a postage stamp. All were tested at two frequencies, 250 hertz (for piano players, roughly the B note below middle C) and 1,000 hertz (two octaves higher than 250 hertz).

They began by measuring over the whole surface area of the diaphragms. They found that the velocity in the center of the diaphragms was significantly higher than near the edges, where there was practically no motion.

Ultimately, they discovered that the best approach was to use data from just a small section at the center of the diaphragms taking up only 3% of the total surface area. The idea of using just the central section came from a recent paper by a team of researchers from the Republic of Korea and Japan.

“The key to making the velocity measurements nice and repeatable is measuring in the center of the diaphragm,” Wagner said. “As you go further and further toward the edges, our measurements just weren’t very repeatable.”

As a final step, Wagner and Allen compared the microphone sensitivities they measured with the laser-based calibrations to measurements they had previously taken using the gold-standard reciprocity calibrations with the same set of microphones. The verdict?

“The numbers agreed very well,” Wagner said. “They were statistically indistinguishable from each other.”

Moreover, the uncertainties for the new laser method were impressive. For comparison: While the gold-standard reciprocity method has the lowest uncertainty at 0.03 decibels (dB), and the traditional reciprocity-based comparison method has an uncertainty of 0.08 dB, the laser-based comparison method has an uncertainty of just 0.05 dB.

Wagner and Allen say that the laser comparison method saves “significant time” primarily because it is performed in open air. In contrast, the traditional NIST way of doing a comparison at higher frequencies requires connecting two microphones with an acoustic coupler and then filling the coupler with hydrogen, which takes up to 20 minutes per test.

Next Steps

Wagner hopes that scientists will find a way to develop the laser-based system into a highly accurate primary calibration method that rivals or even outperforms the gold-standard reciprocity method. If successful, a primary laser-based method would be significantly faster, since the reciprocity method requires researchers to repeat the measurements multiple times with different combinations of microphones and acoustic couplers.

Meanwhile, Wagner thinks the laser method could someday be standardized by a standards organization.

“That would be a consensus stamp of acceptance,” Wagner said. Until then, he continued, “we have a lot of work left to do.”

In the coming months, he and Allen will be upgrading to a more sensitive laser Doppler vibrometer system and will begin expanding the types of microphones calibrated as well as the range of frequencies. They have applied for a provisional patent, and they will also try to turn the method into a suitable primary calibration technique.

“This first attempt was sort of an example of walking past the trees and seeing the really low-hanging fruit, and grabbing it,” Allen said.

Wagner says that this experiment is unusual in his experience. Vibrations are usually considered “problematic” when making acoustic measurements since they can lead to increased noise levels. But in this experiment, the vibration and acoustic measurements are connected by design.

“I’ve been at NIST 30 years, and I don’t recall a project that brought vibration and acoustics so closely together,” Wagner said.

Testing 1-2: New laser-based microphone calibration measures up

" ["date_timestamp"]=> int(1630946180) } [8]=> array(11) { ["title"]=> string(101) "Raffi Ahmad Invites Content Creators To Go Forward Together Through Collaboration : Okezone Celebrity" ["link"]=> string(152) "https://dentistnewsnetwork.com/celebrity/2021/09/06/raffi-ahmad-invites-content-creators-to-go-forward-together-through-collaboration-okezone-celebrity/" ["dc"]=> array(1) { ["creator"]=> string(16) "Sandy Richardson" } ["pubdate"]=> string(31) "Mon, 06 Sep 2021 16:26:12 +0000" ["category"]=> string(70) "CelebrityAhmadcelebrityCollaborationContentCreatorsInvitesOkezoneRaffi" ["guid"]=> string(152) "https://dentistnewsnetwork.com/celebrity/2021/09/06/raffi-ahmad-invites-content-creators-to-go-forward-together-through-collaboration-okezone-celebrity/" ["description"]=> string(109) "JAKARTA – Video Content Creator Awards 2021, the first award program for Indonesian digital creators..." ["content"]=> array(1) { ["encoded"]=> string(3060) "

JAKARTA Video Content Creator Awards 2021, the first award program for Indonesian digital creators was successfully held, on September 4. The event was filled with the spirit of healthy competition.

Raffi Ahmad, who managed to bring home the Favorite Celebrity trophy, even appreciated the artists who were his competitors in that category. “My friends are great too! Baim Wong, Kang Sule, Andre Taulany, and Boy William,” he said in his victory speech.

Not to forget, Raffi Ahmad also reminded the importance of collaboration among content creators to achieve success together. “So we have to collaborate. Show that we can move forward and succeed together,” he said again.

In closing his victory speech, Raffi Ahmad dedicated his victory to his second child. “I dedicate this trophy to my future brother, Rafathar, the new baby that will be launched in December,” he said.

Besides Raffi Ahmad, Ria Ricis also won the Favorite Digital Content Creator trophy beating Atta Halilintar and RANS Entertainment. Meanwhile, Jess No Limit won the Favorite Gaming Content Creator category.

Nanda Arsyinta won the Favorite Beauty Content Creator trophy beating other big names, such as Tasya Farasya and Rachel Goddard. Risa’s journal won the Favorite Mystery Content Creator category, followed by Arif Muhammad alias Mak Beti as the Favorite Comedy Content Creator.

Also read: Atta Halilintar Until Denny Cagur Enlivens the Video Content Creator Awards 2021

Alshad Ahmad won the Favorite Animal Content Creator award, followed by Tanboy Kun who won the Favorite Culinary Content Creator category. Meanwhile, Zara Cute won the Favorite Kids Content Creator award.

The Favorite Automotive Content Creator category was won by Fitra Eri, followed by Reza Dharmawangsa who was chosen as the Favorite Music Cover Content Creator. On the other hand, Denny Caknan managed to bring home the Social Media Content Creator trophy.

Video Content Creator Awards 2021.

Follow the TikTok account and Instagram @officialgtvid to get the latest updates and other interesting content. Missed watching the excitement of the 2021 Video Content Creator Awards?

You can watch the award event again on the RCTI+ application which can be downloaded via the App Store and Play Store. Alternatively, you can access the www.rctiplus.com page to watch the awarding event again.*

Also read: Benny Simanjuntak admits Jonathan Frizzy converted to Islam for Dhena Devanka

" } ["summary"]=> string(109) "JAKARTA – Video Content Creator Awards 2021, the first award program for Indonesian digital creators..." ["atom_content"]=> string(3060) "

JAKARTA Video Content Creator Awards 2021, the first award program for Indonesian digital creators was successfully held, on September 4. The event was filled with the spirit of healthy competition.

Raffi Ahmad, who managed to bring home the Favorite Celebrity trophy, even appreciated the artists who were his competitors in that category. “My friends are great too! Baim Wong, Kang Sule, Andre Taulany, and Boy William,” he said in his victory speech.

Not to forget, Raffi Ahmad also reminded the importance of collaboration among content creators to achieve success together. “So we have to collaborate. Show that we can move forward and succeed together,” he said again.

In closing his victory speech, Raffi Ahmad dedicated his victory to his second child. “I dedicate this trophy to my future brother, Rafathar, the new baby that will be launched in December,” he said.

Besides Raffi Ahmad, Ria Ricis also won the Favorite Digital Content Creator trophy beating Atta Halilintar and RANS Entertainment. Meanwhile, Jess No Limit won the Favorite Gaming Content Creator category.

Nanda Arsyinta won the Favorite Beauty Content Creator trophy beating other big names, such as Tasya Farasya and Rachel Goddard. Risa’s journal won the Favorite Mystery Content Creator category, followed by Arif Muhammad alias Mak Beti as the Favorite Comedy Content Creator.

Also read: Atta Halilintar Until Denny Cagur Enlivens the Video Content Creator Awards 2021

Alshad Ahmad won the Favorite Animal Content Creator award, followed by Tanboy Kun who won the Favorite Culinary Content Creator category. Meanwhile, Zara Cute won the Favorite Kids Content Creator award.

The Favorite Automotive Content Creator category was won by Fitra Eri, followed by Reza Dharmawangsa who was chosen as the Favorite Music Cover Content Creator. On the other hand, Denny Caknan managed to bring home the Social Media Content Creator trophy.

Video Content Creator Awards 2021.

Follow the TikTok account and Instagram @officialgtvid to get the latest updates and other interesting content. Missed watching the excitement of the 2021 Video Content Creator Awards?

You can watch the award event again on the RCTI+ application which can be downloaded via the App Store and Play Store. Alternatively, you can access the www.rctiplus.com page to watch the awarding event again.*

Also read: Benny Simanjuntak admits Jonathan Frizzy converted to Islam for Dhena Devanka

" ["date_timestamp"]=> int(1630945572) } [9]=> array(11) { ["title"]=> string(145) "Li Bingbing is looking for a new household member with a salary of IDR 264 million per month, the conditions make you dizzy! : Okezone Celebrity" ["link"]=> string(193) "https://dentistnewsnetwork.com/celebrity/2021/09/06/li-bingbing-is-looking-for-a-new-household-member-with-a-salary-of-idr-264-million-per-month-the-conditions-make-you-dizzy-okezone-celebrity/" ["dc"]=> array(1) { ["creator"]=> string(16) "Sandy Richardson" } ["pubdate"]=> string(31) "Mon, 06 Sep 2021 15:25:23 +0000" ["category"]=> string(84) "CelebrityBingbingcelebrityconditionsdizzyhouseholdIDRmembermillionmonthOkezonesalary" ["guid"]=> string(193) "https://dentistnewsnetwork.com/celebrity/2021/09/06/li-bingbing-is-looking-for-a-new-household-member-with-a-salary-of-idr-264-million-per-month-the-conditions-make-you-dizzy-okezone-celebrity/" ["description"]=> string(85) "BEIJING – Aktris China Li Bingbing is known to be looking for a new domestic..." ["content"]=> array(1) { ["encoded"]=> string(2750) "

BEIJINGAktris China Li Bingbing is known to be looking for a new domestic helper (ART) to work at her home. Unmitigated, he offered a salary of RMB120,000 or equivalent to Rp264 million per month for the new ART.

Quotes Today Online, Monday (6/9/2021), there are 20 people who have registered to become the new ART of the actress. But none of them meet the criteria of co-star Jason Statham in the film The Meg the.

The 48-year-old actress, apparently has very high standards of cleanliness and hygiene. This was revealed by one of the actress’ ART candidates. The woman admitted that she had been asked to demonstrate how to wash vegetables.

However, Li Bingbing looked so dissatisfied that the woman had to wash the vegetables eight times. But after finishing, the actress just threw the vegetables into the trash.

The woman then asked what mistake she had made that Li Bingbing had to throw away the vegetables. But the answer of the actress, made the woman very surprised.

Read also: Viral Photo of Darren Wang Pangku and Kiss Malaysian Artist at Hot Water Bath

“Li Bingbing said, because I don’t wear gloves. So no matter how much I wash it, the bacteria will still stick to the vegetables,” said the woman who had to settle for not being chosen as the actress’s ART.

Li Bingbing is looking for a new household member with a fantastic salary, but the conditions are confusing. (Photo: L'Officiel)

Not only that, Li Bingbing also advised the woman to immediately cook the washed vegetables to keep them sterile. “He said, ‘After being exposed to the air for a long time (during washing), the vegetables are the same as not being washed at all,” said the actress.

The story told by the woman is no longer a secret. The reason is, the actress is known to be very obsessed with cleanliness. When appearing in a reality show Back to Field, Li Bingbing was caught washing the dishes that had been washed by other artists.*

Also read: Benny Simanjuntak admits Jonathan Frizzy converted to Islam for Dhena Devanka

" } ["summary"]=> string(85) "BEIJING – Aktris China Li Bingbing is known to be looking for a new domestic..." ["atom_content"]=> string(2750) "

BEIJINGAktris China Li Bingbing is known to be looking for a new domestic helper (ART) to work at her home. Unmitigated, he offered a salary of RMB120,000 or equivalent to Rp264 million per month for the new ART.

Quotes Today Online, Monday (6/9/2021), there are 20 people who have registered to become the new ART of the actress. But none of them meet the criteria of co-star Jason Statham in the film The Meg the.

The 48-year-old actress, apparently has very high standards of cleanliness and hygiene. This was revealed by one of the actress’ ART candidates. The woman admitted that she had been asked to demonstrate how to wash vegetables.

However, Li Bingbing looked so dissatisfied that the woman had to wash the vegetables eight times. But after finishing, the actress just threw the vegetables into the trash.

The woman then asked what mistake she had made that Li Bingbing had to throw away the vegetables. But the answer of the actress, made the woman very surprised.

Read also: Viral Photo of Darren Wang Pangku and Kiss Malaysian Artist at Hot Water Bath

“Li Bingbing said, because I don’t wear gloves. So no matter how much I wash it, the bacteria will still stick to the vegetables,” said the woman who had to settle for not being chosen as the actress’s ART.

Li Bingbing is looking for a new household member with a fantastic salary, but the conditions are confusing. (Photo: L'Officiel)

Not only that, Li Bingbing also advised the woman to immediately cook the washed vegetables to keep them sterile. “He said, ‘After being exposed to the air for a long time (during washing), the vegetables are the same as not being washed at all,” said the actress.

The story told by the woman is no longer a secret. The reason is, the actress is known to be very obsessed with cleanliness. When appearing in a reality show Back to Field, Li Bingbing was caught washing the dishes that had been washed by other artists.*

Also read: Benny Simanjuntak admits Jonathan Frizzy converted to Islam for Dhena Devanka

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