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Packaging News Online
Roboticists go off road to compile data that could train self-driving ATVs – NovLink
Stars are more massive than we thought – NovLink
Atacada a su credibilidad económica, Nupes presenta su plan de emergencia para el poder adquisitivo
Guimarães se despide hoy de las víctimas de la tragedia en la A1
Secure communication with light particles – NovLink
Hydrogen production method opens up clean energy possibilities – NovLink
How eating eggs can boost heart health – NovLink
Click, clack y pop: los sonidos indican la salud de los arrecifes de coral, encuentra un estudio | Coral
Mothers of twins are not more fertile, just lucky – NovLink
Nueva colección de Balenciaga, que pronto se probarán Kim Kardashian y Kanye West

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                    [title] => Roboticists go off road to compile data that could train self-driving ATVs – NovLink
                    [link] => http://packagingnewsonline.com/health-science-news/roboticists-go-off-road-to-compile-data-that-could-train-self-driving-atvs-novlink/
                    [dc] => Array
                        (
                            [creator] => Betty Foster
                        )

                    [pubdate] => Wed, 25 May 2022 20:25:30 +0000
                    [category] => Health & Science News
                    [guid] => https://packagingnewsonline.com/health-science-news/roboticists-go-off-road-to-compile-data-that-could-train-self-driving-atvs-novlink/
                    [description] => They drove the heavily instrumented ATV aggressively at speeds up to 30 miles an hour....
                    [content] => Array
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They drove the heavily instrumented ATV aggressively at speeds up to 30 miles an hour. They slid through turns, took it up and down hills, and even got it stuck in the mud — all while gathering data such as video, the speed of each wheel and the amount of suspension shock travel from seven types of sensors.

The resulting dataset, called TartanDrive, includes about 200,000 of these real-world interactions. The researchers believe the data is the largest real-world, multimodal, off-road driving dataset, both in terms of the number of interactions and types of sensors. The five hours of data could be useful for training a self-driving vehicle to navigate off road.

“Unlike autonomous street driving, off-road driving is more challenging because you have to understand the dynamics of the terrain in order to drive safely and to drive faster,” said Wenshan Wang, a project scientist in the Robotics Institute (RI).

Previous work on off-road driving has often involved annotated maps, which provide labels such as mud, grass, vegetation or water to help the robot understand the terrain. But that sort of information isn’t often available and, even when it is, might not be useful. A map area labeled as “mud,” for example, may or may not be drivable. Robots that understand dynamics can reason about the physical world.

The research team found that the multimodal sensor data they gathered for TartanDrive enabled them to build prediction models superior to those developed with simpler, nondynamic data. Driving aggressively also pushed the ATV into a performance realm where an understanding of dynamics became essential, said Samuel Triest, a second-year master’s student in robotics.

“The dynamics of these systems tend to get more challenging as you add more speed,” said Triest, who was lead author on the team’s resulting paper. “You drive faster, you bounce off more stuff. A lot of the data we were interested in gathering was this more aggressive driving, more challenging slopes and thicker vegetation because that’s where some of the simpler rules start breaking down.”

Though most work on self-driving vehicles focuses on street driving, the first applications likely will be off road in controlled access areas, where the risk of collisions with people or other vehicles is limited. The team’s tests were performed at a site near Pittsburgh that CMU’s National Robotics Engineering Center uses to test autonomous off-road vehicles. Humans drove the ATV, though they used a drive-by-wire system to control steering and speed.

“We were forcing the human to go through the same control interface as the robot would,” Wang said. “In that way, the actions the human takes can be used directly as input for how the robot should act.”

Triest will present the TartanDrive study at the International Conference on Robotics and Automation (ICRA) this week in Philadelphia. In addition to Triest and Wang, the research team included Sebastian Scherer, associate research professor in the RI; Aaron Johnson, an assistant professor of mechanical engineering; Sean J. Wang, a Ph.D. student in mechanical engineering; and Matthew Sivaprakasam, a computer engineering student at the University of Pittsburgh.

Roboticists go off road to compile data that could train self-driving ATVs

) [summary] => They drove the heavily instrumented ATV aggressively at speeds up to 30 miles an hour.... [atom_content] =>

They drove the heavily instrumented ATV aggressively at speeds up to 30 miles an hour. They slid through turns, took it up and down hills, and even got it stuck in the mud — all while gathering data such as video, the speed of each wheel and the amount of suspension shock travel from seven types of sensors.

The resulting dataset, called TartanDrive, includes about 200,000 of these real-world interactions. The researchers believe the data is the largest real-world, multimodal, off-road driving dataset, both in terms of the number of interactions and types of sensors. The five hours of data could be useful for training a self-driving vehicle to navigate off road.

“Unlike autonomous street driving, off-road driving is more challenging because you have to understand the dynamics of the terrain in order to drive safely and to drive faster,” said Wenshan Wang, a project scientist in the Robotics Institute (RI).

Previous work on off-road driving has often involved annotated maps, which provide labels such as mud, grass, vegetation or water to help the robot understand the terrain. But that sort of information isn’t often available and, even when it is, might not be useful. A map area labeled as “mud,” for example, may or may not be drivable. Robots that understand dynamics can reason about the physical world.

The research team found that the multimodal sensor data they gathered for TartanDrive enabled them to build prediction models superior to those developed with simpler, nondynamic data. Driving aggressively also pushed the ATV into a performance realm where an understanding of dynamics became essential, said Samuel Triest, a second-year master’s student in robotics.

“The dynamics of these systems tend to get more challenging as you add more speed,” said Triest, who was lead author on the team’s resulting paper. “You drive faster, you bounce off more stuff. A lot of the data we were interested in gathering was this more aggressive driving, more challenging slopes and thicker vegetation because that’s where some of the simpler rules start breaking down.”

Though most work on self-driving vehicles focuses on street driving, the first applications likely will be off road in controlled access areas, where the risk of collisions with people or other vehicles is limited. The team’s tests were performed at a site near Pittsburgh that CMU’s National Robotics Engineering Center uses to test autonomous off-road vehicles. Humans drove the ATV, though they used a drive-by-wire system to control steering and speed.

“We were forcing the human to go through the same control interface as the robot would,” Wang said. “In that way, the actions the human takes can be used directly as input for how the robot should act.”

Triest will present the TartanDrive study at the International Conference on Robotics and Automation (ICRA) this week in Philadelphia. In addition to Triest and Wang, the research team included Sebastian Scherer, associate research professor in the RI; Aaron Johnson, an assistant professor of mechanical engineering; Sean J. Wang, a Ph.D. student in mechanical engineering; and Matthew Sivaprakasam, a computer engineering student at the University of Pittsburgh.

Roboticists go off road to compile data that could train self-driving ATVs

) [1] => Array ( [title] => Stars are more massive than we thought – NovLink [link] => http://packagingnewsonline.com/health-science-news/stars-are-more-massive-than-we-thought-novlink/ [dc] => Array ( [creator] => Betty Foster ) [pubdate] => Wed, 25 May 2022 19:21:29 +0000 [category] => Health & Science News [guid] => https://packagingnewsonline.com/health-science-news/stars-are-more-massive-than-we-thought-novlink/ [description] => Journal Reference: Albert Sneppen, Charles L. Steinhardt, Hagan Hensley, Adam S. Jermyn, Basel Mostafa, John... [content] => Array ( [encoded] =>

Journal Reference:

  1. Albert Sneppen, Charles L. Steinhardt, Hagan Hensley, Adam S. Jermyn, Basel Mostafa, John R. Weaver. Implications of a Temperature-dependent Initial Mass Function. I. Photometric Template Fitting. The Astrophysical Journal, 2022; 931 (1): 57 DOI: 10.3847/1538-4357/ac695e

For as long as humans have studied the heavens, how stars look in distant galaxies has been a mystery. In a study published today in The Astrophysical Journal, a team of researchers at the University of Copenhagen’s Niels Bohr Institute is doing away with previous understandings of stars beyond our own galaxy.

Since 1955, it has been assumed that the composition of stars in the universe’s other galaxies is similar to that of the hundreds of billions of stars within our own — a mixture of massive, medium mass and low mass stars. But with the help of observations from 140,000 galaxies across the universe and a wide range of advanced models, the team has tested whether the same distribution of stars apparent in the Milky Way applies elsewhere. The answer is no. Stars in distant galaxies are typically more massive than those in our “local neighborhood.” The finding has a major impact on what we think we know about the universe.

“The mass of stars tells us astronomers a lot. If you change mass, you also change the number of supernovae and black holes that arise out of massive stars. As such, our result means that we’ll have to revise many of the things we once presumed, because distant galaxies look quite different from our own,” says Albert Sneppen, a graduate student at the Niels Bohr Institute and first author of the study.

Analyzed light from 140,000 galaxies

Researchers assumed that the size and weight of stars in other galaxies was similar to our own for more than fifty years, for the simple reason that they were unable to observe them through a telescope, as they could with the stars of our own galaxy.

Distant galaxies are billions of light-years away. As a result, only light from their most powerful stars ever reaches Earth. This has been a headache for researchers around the world for years, as they could never accurately clarify how stars in other galaxies were distributed, an uncertainty that forced them to believe that they were distributed much like the stars in our Milky Way.

“We’ve only been able to see the tip of the iceberg and known for a long time that expecting other galaxies to look like our own was not a particularly good assumption to make. However, no one has ever been able to prove that other galaxies form different populations of stars. This study has allowed us to do just that, which may open the door for a deeper understanding of galaxy formation and evolution,” says Associate Professor Charles Steinhardt, a co-author of the study.

In the study, the researchers analyzed light from 140,000 galaxies using the COSMOS catalog, a large international database of more than one million observations of light from other galaxies. These galaxies are distributed from the nearest to farthest reaches of the universe, from which light has traveled a full twelve billion years before being observable on Earth.

Massive galaxies die first

According to the researchers, the new discovery will have a wide range of implications. For example, it remains unresolved why galaxies die and stop forming new stars. The new result suggests that this might be explained by a simple trend.

“Now that we are better able to decode the mass of stars, we can see a new pattern; the least massive galaxies continue to form stars, while the more massive galaxies stop birthing new stars,. This suggests a remarkably universal trend in the death of galaxies,” concludes Albert Sneppen.

The research was conducted at the Cosmic Dawn Center (DAWN), an international basic research center for astronomy supported by the Danish National Research Foundation. DAWN is a collaboration between the Niels Bohr Institute at the University of Copenhagen and DTU Space at the Technical University of Denmark.

The center is dedicated to understanding when and how the first galaxies, stars and black holes formed and evolved in the early universe, through observations using the largest telescopes along with theoretical work and simulations.

About the study

New discovery about distant galaxies: Stars are more massive than we thought

) [summary] => Journal Reference: Albert Sneppen, Charles L. Steinhardt, Hagan Hensley, Adam S. Jermyn, Basel Mostafa, John... [atom_content] =>

Journal Reference:

  1. Albert Sneppen, Charles L. Steinhardt, Hagan Hensley, Adam S. Jermyn, Basel Mostafa, John R. Weaver. Implications of a Temperature-dependent Initial Mass Function. I. Photometric Template Fitting. The Astrophysical Journal, 2022; 931 (1): 57 DOI: 10.3847/1538-4357/ac695e

For as long as humans have studied the heavens, how stars look in distant galaxies has been a mystery. In a study published today in The Astrophysical Journal, a team of researchers at the University of Copenhagen’s Niels Bohr Institute is doing away with previous understandings of stars beyond our own galaxy.

Since 1955, it has been assumed that the composition of stars in the universe’s other galaxies is similar to that of the hundreds of billions of stars within our own — a mixture of massive, medium mass and low mass stars. But with the help of observations from 140,000 galaxies across the universe and a wide range of advanced models, the team has tested whether the same distribution of stars apparent in the Milky Way applies elsewhere. The answer is no. Stars in distant galaxies are typically more massive than those in our “local neighborhood.” The finding has a major impact on what we think we know about the universe.

“The mass of stars tells us astronomers a lot. If you change mass, you also change the number of supernovae and black holes that arise out of massive stars. As such, our result means that we’ll have to revise many of the things we once presumed, because distant galaxies look quite different from our own,” says Albert Sneppen, a graduate student at the Niels Bohr Institute and first author of the study.

Analyzed light from 140,000 galaxies

Researchers assumed that the size and weight of stars in other galaxies was similar to our own for more than fifty years, for the simple reason that they were unable to observe them through a telescope, as they could with the stars of our own galaxy.

Distant galaxies are billions of light-years away. As a result, only light from their most powerful stars ever reaches Earth. This has been a headache for researchers around the world for years, as they could never accurately clarify how stars in other galaxies were distributed, an uncertainty that forced them to believe that they were distributed much like the stars in our Milky Way.

“We’ve only been able to see the tip of the iceberg and known for a long time that expecting other galaxies to look like our own was not a particularly good assumption to make. However, no one has ever been able to prove that other galaxies form different populations of stars. This study has allowed us to do just that, which may open the door for a deeper understanding of galaxy formation and evolution,” says Associate Professor Charles Steinhardt, a co-author of the study.

In the study, the researchers analyzed light from 140,000 galaxies using the COSMOS catalog, a large international database of more than one million observations of light from other galaxies. These galaxies are distributed from the nearest to farthest reaches of the universe, from which light has traveled a full twelve billion years before being observable on Earth.

Massive galaxies die first

According to the researchers, the new discovery will have a wide range of implications. For example, it remains unresolved why galaxies die and stop forming new stars. The new result suggests that this might be explained by a simple trend.

“Now that we are better able to decode the mass of stars, we can see a new pattern; the least massive galaxies continue to form stars, while the more massive galaxies stop birthing new stars,. This suggests a remarkably universal trend in the death of galaxies,” concludes Albert Sneppen.

The research was conducted at the Cosmic Dawn Center (DAWN), an international basic research center for astronomy supported by the Danish National Research Foundation. DAWN is a collaboration between the Niels Bohr Institute at the University of Copenhagen and DTU Space at the Technical University of Denmark.

The center is dedicated to understanding when and how the first galaxies, stars and black holes formed and evolved in the early universe, through observations using the largest telescopes along with theoretical work and simulations.

About the study

New discovery about distant galaxies: Stars are more massive than we thought

) [2] => Array ( [title] => Atacada a su credibilidad económica, Nupes presenta su plan de emergencia para el poder adquisitivo [link] => http://packagingnewsonline.com/latest-money-news/atacada-a-su-credibilidad-economica-nupes-presenta-su-plan-de-emergencia-para-el-poder-adquisitivo/ [dc] => Array ( [creator] => Peter Crossley ) [pubdate] => Wed, 25 May 2022 18:50:27 +0000 [category] => Latest Money NewsadquisitivoatacadacredibilidadeconómicaemergenciaNupesParáplanpoderpresenta [guid] => https://packagingnewsonline.com/latest-money-news/atacada-a-su-credibilidad-economica-nupes-presenta-su-plan-de-emergencia-para-el-poder-adquisitivo/ [description] => Julien Bayou (EELV, izquierda), Emmanuel Fernandes (LFI, centro) y Jean-Luc Melenchon (LFI, derecha), durante una... [content] => Array ( [encoded] =>

Es un ejercicio al unísono al que ahora debemos acostumbrarnos, a la izquierda. El miércoles 25 de mayo, los dirigentes de las fuerzas de la Nueva Unión Popular Ecológica y Social (Nupes) desarrollaron un capítulo de la “programa compartido de gobierno” presentado la semana pasada: el dedicado al poder adquisitivo. No es casualidad en este tema, central en la campaña de Jean-Luc Mélenchon, que se ha convertido en un tótem incluso para el gobierno de Elisabeth Borne, que pretende dar compromisos sobre este punto a lo largo de la campaña legislativa ante la creciente inflación, sin aún presentar un texto de ley antes de las elecciones del 12 y 19 de junio.

Lea también la columna: Artículo reservado para nuestros suscriptores Thomas Piketty: “El acuerdo alcanzado por los partidos de izquierda marca el regreso de la justicia social y fiscal”

Frente a Nupes, los economistas están divididos. Algunos, como Thomas Piketty, dan la bienvenida al regreso de la justicia social y fiscal. Otros, como Philippe Aghion, expadrino de Emmanuel Macron en 2017, acometieron recientemente un ataque total al programa Nupes, percibido como fruto de un “falso pensamiento” que conduce al desastre según las palabras escogidas por este último en Los ecos. En una nota para Terra Nova, el banquero y profesor asociado de la Ecole Normale Supérieure Guillaume Hannezo también predice un futuro desastroso para la alianza: “Enfrentar las crisis europeas, financieras y monetarias que le esperan precedida de una reputación de afectos bolivarianos bastante exóticos; aquejada de un déficit sin precedentes, enteramente estructural, y por tanto de una dinámica explosiva de deuda pública. »

Consenso justo

Jean-Luc Mélenchon respondió el miércoles a “comentaristas” quién “Creo que la inflación es el resultado de un ciclo perverso entre precios y salarios”: “No, eso no es cierto. Es el bucle beneficio/precio (…) Para nosotros, el corazón de la inflación es la especulación, el exceso de beneficios, la interrupción de las cadenas de producción mundiales por causas más o menos lejanas del covid y la guerra en Ucrania…» Ante quienes lo acusan de querer destruir la economía, el líder de los “Nupes” asegura por el contrario que quiere hacer todo lo posible para evitar el “colapso” y rectificar el rumbo, haciendo, dijo, “pagar la inflación a las ganancias en lugar de a los salarios”.

Las medidas presentadas tienen la ventaja de lograr el consenso entre las fuerzas de Nupes: aumento del salario mínimo a 1.500 euros netos mensuales por decreto, aumento del 10% en el punto del índice para los funcionarios, aumento de las pensiones de jubilación para que no haya pensión de jubilación completa es inferior al salario mínimo revalorizado, implementación de una “garantía de dignidad” para que ningún francés viva por debajo del umbral de la pobreza (1.063 euros para una sola persona), subsidio de autonomía para jóvenes a partir de los 18 años pero también supervisión de alquileres para “cortar la cadena de la inflación”.

Te queda por leer el 29,73% de este artículo. Lo siguiente es solo para suscriptores.

) [summary] => Julien Bayou (EELV, izquierda), Emmanuel Fernandes (LFI, centro) y Jean-Luc Melenchon (LFI, derecha), durante una... [atom_content] =>

Es un ejercicio al unísono al que ahora debemos acostumbrarnos, a la izquierda. El miércoles 25 de mayo, los dirigentes de las fuerzas de la Nueva Unión Popular Ecológica y Social (Nupes) desarrollaron un capítulo de la “programa compartido de gobierno” presentado la semana pasada: el dedicado al poder adquisitivo. No es casualidad en este tema, central en la campaña de Jean-Luc Mélenchon, que se ha convertido en un tótem incluso para el gobierno de Elisabeth Borne, que pretende dar compromisos sobre este punto a lo largo de la campaña legislativa ante la creciente inflación, sin aún presentar un texto de ley antes de las elecciones del 12 y 19 de junio.

Lea también la columna: Artículo reservado para nuestros suscriptores Thomas Piketty: “El acuerdo alcanzado por los partidos de izquierda marca el regreso de la justicia social y fiscal”

Frente a Nupes, los economistas están divididos. Algunos, como Thomas Piketty, dan la bienvenida al regreso de la justicia social y fiscal. Otros, como Philippe Aghion, expadrino de Emmanuel Macron en 2017, acometieron recientemente un ataque total al programa Nupes, percibido como fruto de un “falso pensamiento” que conduce al desastre según las palabras escogidas por este último en Los ecos. En una nota para Terra Nova, el banquero y profesor asociado de la Ecole Normale Supérieure Guillaume Hannezo también predice un futuro desastroso para la alianza: “Enfrentar las crisis europeas, financieras y monetarias que le esperan precedida de una reputación de afectos bolivarianos bastante exóticos; aquejada de un déficit sin precedentes, enteramente estructural, y por tanto de una dinámica explosiva de deuda pública. »

Consenso justo

Jean-Luc Mélenchon respondió el miércoles a “comentaristas” quién “Creo que la inflación es el resultado de un ciclo perverso entre precios y salarios”: “No, eso no es cierto. Es el bucle beneficio/precio (…) Para nosotros, el corazón de la inflación es la especulación, el exceso de beneficios, la interrupción de las cadenas de producción mundiales por causas más o menos lejanas del covid y la guerra en Ucrania…» Ante quienes lo acusan de querer destruir la economía, el líder de los “Nupes” asegura por el contrario que quiere hacer todo lo posible para evitar el “colapso” y rectificar el rumbo, haciendo, dijo, “pagar la inflación a las ganancias en lugar de a los salarios”.

Las medidas presentadas tienen la ventaja de lograr el consenso entre las fuerzas de Nupes: aumento del salario mínimo a 1.500 euros netos mensuales por decreto, aumento del 10% en el punto del índice para los funcionarios, aumento de las pensiones de jubilación para que no haya pensión de jubilación completa es inferior al salario mínimo revalorizado, implementación de una “garantía de dignidad” para que ningún francés viva por debajo del umbral de la pobreza (1.063 euros para una sola persona), subsidio de autonomía para jóvenes a partir de los 18 años pero también supervisión de alquileres para “cortar la cadena de la inflación”.

Te queda por leer el 29,73% de este artículo. Lo siguiente es solo para suscriptores.

) [3] => Array ( [title] => Guimarães se despide hoy de las víctimas de la tragedia en la A1 [link] => http://packagingnewsonline.com/international-news/guimaraes-se-despide-hoy-de-las-victimas-de-la-tragedia-en-la-a1/ [dc] => Array ( [creator] => Susan Hall ) [pubdate] => Wed, 25 May 2022 18:20:03 +0000 [category] => International NewsdespideguimaraeshoyLastragediavíctimas [guid] => https://packagingnewsonline.com/international-news/guimaraes-se-despide-hoy-de-las-victimas-de-la-tragedia-en-la-a1/ [description] => Los funerales de las tres víctimas de la tragedia de la A1, el sábado, tendrán... [content] => Array ( [encoded] =>

Los funerales de las tres víctimas de la tragedia de la A1, el sábado, tendrán lugar este miércoles en Guimarães.

Alberto Soares, Emília Castro y António Araújo fallecieron al estrellarse en la zona de Mealhada el autobús en el que iban de excursión a Fátima.

El funeral de Alberto Soares, de 77 años, se realiza hoy a las 15:00 horas, en la Iglesia Parroquial de Figueiredo, donde residía, y luego será sepultado en el cementerio local.

El septuagenario terminó muriendo por estar en el asiento delantero, pues se mareaba en los viajes.

En la iglesia de Figueiredo también se celebra el funeral de Emília Castro, de 53 años. Está previsto para las 18:30 horas, seguido del entierro en el cementerio local.

Emília Castro, muy conocida en la parroquia de Figueiredo, donde formaba parte de las fuerzas vivas, murió porque iba delante del autobús rezando el rosario. Catequista y miembro del coro, deja dos hijas ya adultas y un niño, aún más joven.

Foto: RD

Las ceremonias fúnebres de António Araújo, de 58 años, conductor y propietario de la empresa de autobuses Roda do Rei, tienen lugar a las 16:00 horas en el Salón Parroquial de Santa Maria de Airão, seguidas del entierro en un panteón familiar en el cementerio local.

Sin embargo, como informó O MINHO, el Ministerio Público (MP) abrió una investigación para investigar las circunstancias del accidente con un autobús, en la Carretera 1 (A1), en Mealhada, distrito de Aveiro, ocurrido el sábado, que causó tres muertos y más de 30 heridos.

“La investigación está confirmada. Lo mismo corre términos en DIAP [Departamento de Investigação e Ação Penal] de Mealhada en la región de Aveiro”, indica la Procuraduría General de la República (PGR).

Hacia las 9:30 horas del sábado, el autobús, procedente de Guimarães, con romeros de tres parroquias de ese municipio, con destino al Santuario de Fátima, se estrelló, atravesó la calzada contraria y se estrelló contra un poste de electricidad, provocando tres muertos y 33 heridos, seis de ellos gravemente heridos y cinco en estado crítico.

Ministerio Público abre investigación por accidente de autobús en Guimarães en la A1

Los heridos fueron trasladados al Centro Hospitalar e Universitário de Coimbra (CHUC) y al Hospital de Aveiro.

El CHUC indicó este lunes que en esa unidad de salud continúan hospitalizados dos hombres con trauma torácico, quienes se recuperan en el Servicio de Cirugía General y en la Unidad de Cuidados Quirúrgicos Intermedios, respectivamente, y una mujer en el Servicio de Medicina Intensiva, con pronóstico reservado. .

El CHUC recibió ocho heridos (tres críticos y cinco graves) y 12 de los 22 heridos leves, siendo que al Hospital de Aveiro fueron enviados dos heridos críticos, uno grave y ocho leves.

Dos niños fueron trasladados al Hospital Pediátrico.

CHUC agregó a Lusa que los heridos considerados graves y leves fueron dados de alta durante el fin de semana, así como los dos niños.

) [summary] => Los funerales de las tres víctimas de la tragedia de la A1, el sábado, tendrán... [atom_content] =>

Los funerales de las tres víctimas de la tragedia de la A1, el sábado, tendrán lugar este miércoles en Guimarães.

Alberto Soares, Emília Castro y António Araújo fallecieron al estrellarse en la zona de Mealhada el autobús en el que iban de excursión a Fátima.

El funeral de Alberto Soares, de 77 años, se realiza hoy a las 15:00 horas, en la Iglesia Parroquial de Figueiredo, donde residía, y luego será sepultado en el cementerio local.

El septuagenario terminó muriendo por estar en el asiento delantero, pues se mareaba en los viajes.

En la iglesia de Figueiredo también se celebra el funeral de Emília Castro, de 53 años. Está previsto para las 18:30 horas, seguido del entierro en el cementerio local.

Emília Castro, muy conocida en la parroquia de Figueiredo, donde formaba parte de las fuerzas vivas, murió porque iba delante del autobús rezando el rosario. Catequista y miembro del coro, deja dos hijas ya adultas y un niño, aún más joven.

Foto: RD

Las ceremonias fúnebres de António Araújo, de 58 años, conductor y propietario de la empresa de autobuses Roda do Rei, tienen lugar a las 16:00 horas en el Salón Parroquial de Santa Maria de Airão, seguidas del entierro en un panteón familiar en el cementerio local.

Sin embargo, como informó O MINHO, el Ministerio Público (MP) abrió una investigación para investigar las circunstancias del accidente con un autobús, en la Carretera 1 (A1), en Mealhada, distrito de Aveiro, ocurrido el sábado, que causó tres muertos y más de 30 heridos.

“La investigación está confirmada. Lo mismo corre términos en DIAP [Departamento de Investigação e Ação Penal] de Mealhada en la región de Aveiro”, indica la Procuraduría General de la República (PGR).

Hacia las 9:30 horas del sábado, el autobús, procedente de Guimarães, con romeros de tres parroquias de ese municipio, con destino al Santuario de Fátima, se estrelló, atravesó la calzada contraria y se estrelló contra un poste de electricidad, provocando tres muertos y 33 heridos, seis de ellos gravemente heridos y cinco en estado crítico.

Ministerio Público abre investigación por accidente de autobús en Guimarães en la A1

Los heridos fueron trasladados al Centro Hospitalar e Universitário de Coimbra (CHUC) y al Hospital de Aveiro.

El CHUC indicó este lunes que en esa unidad de salud continúan hospitalizados dos hombres con trauma torácico, quienes se recuperan en el Servicio de Cirugía General y en la Unidad de Cuidados Quirúrgicos Intermedios, respectivamente, y una mujer en el Servicio de Medicina Intensiva, con pronóstico reservado. .

El CHUC recibió ocho heridos (tres críticos y cinco graves) y 12 de los 22 heridos leves, siendo que al Hospital de Aveiro fueron enviados dos heridos críticos, uno grave y ocho leves.

Dos niños fueron trasladados al Hospital Pediátrico.

CHUC agregó a Lusa que los heridos considerados graves y leves fueron dados de alta durante el fin de semana, así como los dos niños.

) [4] => Array ( [title] => Secure communication with light particles – NovLink [link] => http://packagingnewsonline.com/health-science-news/secure-communication-with-light-particles-novlink/ [dc] => Array ( [creator] => Betty Foster ) [pubdate] => Wed, 25 May 2022 18:17:29 +0000 [category] => Health & Science News [guid] => https://packagingnewsonline.com/health-science-news/secure-communication-with-light-particles-novlink/ [description] => Journal Reference: Erik Fitzke, Lucas Bialowons, Till Dolejsky, Maximilian Tippmann, Oleg Nikiforov, Thomas Walther, Felix... [content] => Array ( [encoded] =>

Journal Reference:

  1. Erik Fitzke, Lucas Bialowons, Till Dolejsky, Maximilian Tippmann, Oleg Nikiforov, Thomas Walther, Felix Wissel, Matthias Gunkel. Scalable Network for Simultaneous Pairwise Quantum Key Distribution via Entanglement-Based Time-Bin Coding. PRX Quantum, 2022; 3 (2) DOI: 10.1103/PRXQuantum.3.020341

The new system is used to exchange symmetric keys between parties in order to encrypt messages so that they cannot be read by third parties. In cooperation with Deutsche Telekom, the researchers led by physics professor Thomas Walther succeeded in operating a quantum network that is scalable in terms of the number of users and at the same time robust without the need for trusted nodes. In the future, such systems could protect critical infrastructure from the growing danger of cyberattacks. In addition, tap-proof connections could be installed between different government sites in larger cities.

The system developed by the Darmstadt researchers enables the so-called quantum key exchange, providing several parties in a star-shaped network with a common random number. Individual light quanta, so-called photons, are distributed to users in the communication network in order to calculate the random number and thus the digital key. Due to quantum physical effects, these keys are particularly secure. In this way, communication is particularly highly protected, and existing eavesdropping attacks can be detected.

So far, such quantum key methods have been technically complex and sensitive to external influences. The system of the Darmstadt group from the Collaborative Research Center CROSSING is based on a special protocol. The system distributes photons from a central source to all users in the network and establishes the security of the quantum keys through the effect of so-called quantum entanglement. This quantum-physical effect produces correlations between two light particles, which are observable even when they are far apart. The property of the partner particle can be predicted by measuring a property of the light particle from a pair.

Polarization is often used as a property, but this is typically disturbed in the glass fibers used for transmission due to environmental influences such as vibrations or small temperature changes. However, the Darmstadt system uses a protocol in which the quantum information is encoded in the phase and arrival time of the photons and is therefore particularly insensitive to such disturbances. For the first time, the group has succeeded in providing a network of users with quantum keys by means of this robust protocol.

The high stability of the transmission and the scalability in principle were successfully demonstrated in a field test together with Deutsche Telekom Technik GmbH. As a next step, the researchers at TU Darmstadt are planning to connect other buildings in the city to their system.

Secure communication with light particles

) [summary] => Journal Reference: Erik Fitzke, Lucas Bialowons, Till Dolejsky, Maximilian Tippmann, Oleg Nikiforov, Thomas Walther, Felix... [atom_content] =>

Journal Reference:

  1. Erik Fitzke, Lucas Bialowons, Till Dolejsky, Maximilian Tippmann, Oleg Nikiforov, Thomas Walther, Felix Wissel, Matthias Gunkel. Scalable Network for Simultaneous Pairwise Quantum Key Distribution via Entanglement-Based Time-Bin Coding. PRX Quantum, 2022; 3 (2) DOI: 10.1103/PRXQuantum.3.020341

The new system is used to exchange symmetric keys between parties in order to encrypt messages so that they cannot be read by third parties. In cooperation with Deutsche Telekom, the researchers led by physics professor Thomas Walther succeeded in operating a quantum network that is scalable in terms of the number of users and at the same time robust without the need for trusted nodes. In the future, such systems could protect critical infrastructure from the growing danger of cyberattacks. In addition, tap-proof connections could be installed between different government sites in larger cities.

The system developed by the Darmstadt researchers enables the so-called quantum key exchange, providing several parties in a star-shaped network with a common random number. Individual light quanta, so-called photons, are distributed to users in the communication network in order to calculate the random number and thus the digital key. Due to quantum physical effects, these keys are particularly secure. In this way, communication is particularly highly protected, and existing eavesdropping attacks can be detected.

So far, such quantum key methods have been technically complex and sensitive to external influences. The system of the Darmstadt group from the Collaborative Research Center CROSSING is based on a special protocol. The system distributes photons from a central source to all users in the network and establishes the security of the quantum keys through the effect of so-called quantum entanglement. This quantum-physical effect produces correlations between two light particles, which are observable even when they are far apart. The property of the partner particle can be predicted by measuring a property of the light particle from a pair.

Polarization is often used as a property, but this is typically disturbed in the glass fibers used for transmission due to environmental influences such as vibrations or small temperature changes. However, the Darmstadt system uses a protocol in which the quantum information is encoded in the phase and arrival time of the photons and is therefore particularly insensitive to such disturbances. For the first time, the group has succeeded in providing a network of users with quantum keys by means of this robust protocol.

The high stability of the transmission and the scalability in principle were successfully demonstrated in a field test together with Deutsche Telekom Technik GmbH. As a next step, the researchers at TU Darmstadt are planning to connect other buildings in the city to their system.

Secure communication with light particles

) [5] => Array ( [title] => Hydrogen production method opens up clean energy possibilities – NovLink [link] => http://packagingnewsonline.com/health-science-news/hydrogen-production-method-opens-up-clean-energy-possibilities-novlink/ [dc] => Array ( [creator] => Betty Foster ) [pubdate] => Wed, 25 May 2022 17:13:29 +0000 [category] => Health & Science News [guid] => https://packagingnewsonline.com/health-science-news/hydrogen-production-method-opens-up-clean-energy-possibilities-novlink/ [description] => Journal Reference: Benjamin L. Kee, Wei-Jyun Wang, Osman Akpolat, Patrick Littlewood, James P. Seaba, Louis... [content] => Array ( [encoded] =>

Journal Reference:

  1. Benjamin L. Kee, Wei-Jyun Wang, Osman Akpolat, Patrick Littlewood, James P. Seaba, Louis Scudiero, Su Ha. Caustic Aqueous Phase Electrochemical Reforming (CAPER) of Ethanol for Process Intensified Compressed Hydrogen Production. Applied Catalysis A: General, 2022; 118647 DOI: 10.1016/j.apcata.2022.118647

Washington State University researchers used the ethanol and water mixture and a small amount of electricity in a novel conversion system to produce pure compressed hydrogen. The innovation means that hydrogen could be made on-site at fueling stations, so only the ethanol solution would have to be transported. It is a major step in eliminating the need to transport high-pressure hydrogen gas, which has been a major stumbling block for its use as a clean energy fuel.

“This is a new way of thinking about how to produce hydrogen gas,” said Su Ha, professor in the Gene and Linda Voiland School of Chemical Engineering and Bioengineering and corresponding author on the paper published in the journal, Applied Catalysis A. “If there are enough resources, I think it has a really good chance of making a big impact on the hydrogen economy in the near future.”

Using hydrogen as a fuel for cars is a promising but unrealized clean energy. Like an electric-powered car, a hydrogen fuel-cell powered car doesn’t emit any harmful carbon dioxide. Unlike an electric car, it can be filled up with hydrogen gas in minutes at hydrogen fueling stations.

Despite the promise of hydrogen technology, however, storing and transporting high-pressure hydrogen gas in fuel tanks creates significant economic and safety challenges. Because of the challenges, there is little hydrogen gas infrastructure in the U.S., and the technology’s market penetration is very low.

In their work, the WSU researchers created a conversion system with an anode and a cathode. When they put a small amount of electricity into the ethanol and water mixture with a catalyst, they were able to electrochemically produce pure compressed hydrogen. Carbon dioxide from the reaction is captured in a liquid form.

Instead of having to transport hazardous hydrogen gas, the conversion method would mean that the existing infrastructure for transporting ethanol could be used and that the compressed hydrogen gas could be easily and safely created on-demand at gas stations.

“We’re already using ethanol-containing gasoline at every gas station,” said Ha. “You can imagine that an ethanol water mixture can be easily delivered to a local gas station using our existing infrastructure, and then using our technology, you can produce hydrogen that is ready to pump into a hydrogen fuel cell car. We don’t need to worry about hydrogen storage or transportation at all.”

The electrochemical system the team developed uses less than half the electricity of pure water splitting, another method that researchers have studied for de-carbonized hydrogen production. Instead of working hard to compress the hydrogen gas later in the process, the researchers used less energy by instead compressing the liquid ethanol mixture, thereby directly producing an already compressed hydrogen gas.

“The presence of the ethanol in water changes the chemistry,” said graduate student Wei-Jyun Wang, a co-lead author on the paper. “We can actually do our reaction at a much lower electrical voltage than is typically needed for pure water electrolysis.”

Their system also doesn’t require an expensive membrane that other water splitting methods do. The resulting hydrogen from the electrochemical reaction is then ready for use.

“A process that offers a low-electrical energy cost alternative to water electrolysis and can effectively capture carbon dioxide while producing compressed hydrogen could have a significant impact on the hydrogen economy,” said Jamie Kee, a Voiland School postdoctoral researcher and one of lead authors on the paper. “It’s really exciting because there are a whole lot of aspects that play into improving the production methods of hydrogen.”

The researchers are working to scale up the technology and operate it in a continuous manner. They also are working to make use of the carbon dioxide captured in the liquid.

The work was funded by the Gas Technology Institute and the US Department of Energy’s RAPID Manufacturing Institute.

Hydrogen production method opens up clean energy possibilities

) [summary] => Journal Reference: Benjamin L. Kee, Wei-Jyun Wang, Osman Akpolat, Patrick Littlewood, James P. Seaba, Louis... [atom_content] =>

Journal Reference:

  1. Benjamin L. Kee, Wei-Jyun Wang, Osman Akpolat, Patrick Littlewood, James P. Seaba, Louis Scudiero, Su Ha. Caustic Aqueous Phase Electrochemical Reforming (CAPER) of Ethanol for Process Intensified Compressed Hydrogen Production. Applied Catalysis A: General, 2022; 118647 DOI: 10.1016/j.apcata.2022.118647

Washington State University researchers used the ethanol and water mixture and a small amount of electricity in a novel conversion system to produce pure compressed hydrogen. The innovation means that hydrogen could be made on-site at fueling stations, so only the ethanol solution would have to be transported. It is a major step in eliminating the need to transport high-pressure hydrogen gas, which has been a major stumbling block for its use as a clean energy fuel.

“This is a new way of thinking about how to produce hydrogen gas,” said Su Ha, professor in the Gene and Linda Voiland School of Chemical Engineering and Bioengineering and corresponding author on the paper published in the journal, Applied Catalysis A. “If there are enough resources, I think it has a really good chance of making a big impact on the hydrogen economy in the near future.”

Using hydrogen as a fuel for cars is a promising but unrealized clean energy. Like an electric-powered car, a hydrogen fuel-cell powered car doesn’t emit any harmful carbon dioxide. Unlike an electric car, it can be filled up with hydrogen gas in minutes at hydrogen fueling stations.

Despite the promise of hydrogen technology, however, storing and transporting high-pressure hydrogen gas in fuel tanks creates significant economic and safety challenges. Because of the challenges, there is little hydrogen gas infrastructure in the U.S., and the technology’s market penetration is very low.

In their work, the WSU researchers created a conversion system with an anode and a cathode. When they put a small amount of electricity into the ethanol and water mixture with a catalyst, they were able to electrochemically produce pure compressed hydrogen. Carbon dioxide from the reaction is captured in a liquid form.

Instead of having to transport hazardous hydrogen gas, the conversion method would mean that the existing infrastructure for transporting ethanol could be used and that the compressed hydrogen gas could be easily and safely created on-demand at gas stations.

“We’re already using ethanol-containing gasoline at every gas station,” said Ha. “You can imagine that an ethanol water mixture can be easily delivered to a local gas station using our existing infrastructure, and then using our technology, you can produce hydrogen that is ready to pump into a hydrogen fuel cell car. We don’t need to worry about hydrogen storage or transportation at all.”

The electrochemical system the team developed uses less than half the electricity of pure water splitting, another method that researchers have studied for de-carbonized hydrogen production. Instead of working hard to compress the hydrogen gas later in the process, the researchers used less energy by instead compressing the liquid ethanol mixture, thereby directly producing an already compressed hydrogen gas.

“The presence of the ethanol in water changes the chemistry,” said graduate student Wei-Jyun Wang, a co-lead author on the paper. “We can actually do our reaction at a much lower electrical voltage than is typically needed for pure water electrolysis.”

Their system also doesn’t require an expensive membrane that other water splitting methods do. The resulting hydrogen from the electrochemical reaction is then ready for use.

“A process that offers a low-electrical energy cost alternative to water electrolysis and can effectively capture carbon dioxide while producing compressed hydrogen could have a significant impact on the hydrogen economy,” said Jamie Kee, a Voiland School postdoctoral researcher and one of lead authors on the paper. “It’s really exciting because there are a whole lot of aspects that play into improving the production methods of hydrogen.”

The researchers are working to scale up the technology and operate it in a continuous manner. They also are working to make use of the carbon dioxide captured in the liquid.

The work was funded by the Gas Technology Institute and the US Department of Energy’s RAPID Manufacturing Institute.

Hydrogen production method opens up clean energy possibilities

) [6] => Array ( [title] => How eating eggs can boost heart health – NovLink [link] => http://packagingnewsonline.com/health-science-news/how-eating-eggs-can-boost-heart-health-novlink/ [dc] => Array ( [creator] => Betty Foster ) [pubdate] => Wed, 25 May 2022 16:09:27 +0000 [category] => Health & Science News [guid] => https://packagingnewsonline.com/health-science-news/how-eating-eggs-can-boost-heart-health-novlink/ [description] => Journal Reference: Lang Pan, Lu Chen, Jun Lv, Yuanjie Pang, Yu Guo, Pei Pei, Huaidong... [content] => Array ( [encoded] =>

Journal Reference:

  1. Lang Pan, Lu Chen, Jun Lv, Yuanjie Pang, Yu Guo, Pei Pei, Huaidong Du, Ling Yang, Iona Y Millwood, Robin G Walters, Yiping Chen, Weiwei Gong, Junshi Chen, Canqing Yu, Zhengming Chen, Liming Li. Association of egg consumption, metabolic markers, and risk of cardiovascular diseases: A nested case-control study. eLife, 2022; 11 DOI: 10.7554/eLife.72909

The findings suggest that eating up to one egg per day may help lower the risk of developing cardiovascular disease.

Eggs are a rich source of dietary cholesterol, but they also contain a variety of essential nutrients. There is conflicting evidence as to whether egg consumption is beneficial or harmful to heart health. A 2018 study published in the journal Heart, which included approximately half a million adults in China, found that those who ate eggs daily (about one egg per day) had a substantially lower risk of heart disease and stroke than those who ate eggs less frequently*. Now, to better understand this relationship, the authors of this work have carried out a population-based study exploring how egg consumption affects markers of cardiovascular health in the blood.

“Few studies have looked at the role that plasma cholesterol metabolism plays in the association between egg consumption and the risk of cardiovascular diseases, so we wanted to help address this gap,” explains first author Lang Pan, MSc at the Department of Epidemiology and Biostatistics, Peking University, Beijing, China.

Pan and the team selected 4,778 participants from the China Kadoorie Biobank, of whom 3,401 had a cardiovascular disease and 1,377 did not. They used a technique called targeted nuclear magnetic resonance to measure 225 metabolites in plasma samples taken from the participants’ blood. Of these metabolites, they identified 24 that were associated with self-reported levels of egg consumption.

Their analyses showed that individuals who ate a moderate amount of eggs had higher levels of a protein in their blood called apolipoprotein A1- a building-block of high-density lipoprotein (HDL), also known as ‘good lipoprotein’. These individuals especially had more large HDL molecules in their blood, which help clear cholesterol from the blood vessels and thereby protect against blockages that can lead to heart attacks and stroke.

The researchers further identified 14 metabolites that are linked to heart disease. They found that participants who ate fewer eggs had lower levels of beneficial metabolites and higher levels of harmful ones in their blood, compared to those who ate eggs more regularly.

“Together, our results provide a potential explanation for how eating a moderate amount of eggs can help protect against heart disease,” says author Canqing Yu, Associate Professor at the Department of Epidemiology and Biostatistics, Peking University. “More studies are needed to verify the causal roles that lipid metabolites play in the association between egg consumption and the risk of cardiovascular disease.”

“This study may also have implications for Chinese national dietary guidelines,” adds senior author Liming Li, Boya Distinguished Professor at the Department of Epidemiology and Biostatistics, Peking University. “Current health guidelines in China suggest eating one egg a day, but data indicate that the average consumption is lower than this. Our work highlights the need for more strategies to encourage moderate egg consumption among the population, to help lower the overall risk of cardiovascular disease.”

How eating eggs can boost heart health

) [summary] => Journal Reference: Lang Pan, Lu Chen, Jun Lv, Yuanjie Pang, Yu Guo, Pei Pei, Huaidong... [atom_content] =>

Journal Reference:

  1. Lang Pan, Lu Chen, Jun Lv, Yuanjie Pang, Yu Guo, Pei Pei, Huaidong Du, Ling Yang, Iona Y Millwood, Robin G Walters, Yiping Chen, Weiwei Gong, Junshi Chen, Canqing Yu, Zhengming Chen, Liming Li. Association of egg consumption, metabolic markers, and risk of cardiovascular diseases: A nested case-control study. eLife, 2022; 11 DOI: 10.7554/eLife.72909

The findings suggest that eating up to one egg per day may help lower the risk of developing cardiovascular disease.

Eggs are a rich source of dietary cholesterol, but they also contain a variety of essential nutrients. There is conflicting evidence as to whether egg consumption is beneficial or harmful to heart health. A 2018 study published in the journal Heart, which included approximately half a million adults in China, found that those who ate eggs daily (about one egg per day) had a substantially lower risk of heart disease and stroke than those who ate eggs less frequently*. Now, to better understand this relationship, the authors of this work have carried out a population-based study exploring how egg consumption affects markers of cardiovascular health in the blood.

“Few studies have looked at the role that plasma cholesterol metabolism plays in the association between egg consumption and the risk of cardiovascular diseases, so we wanted to help address this gap,” explains first author Lang Pan, MSc at the Department of Epidemiology and Biostatistics, Peking University, Beijing, China.

Pan and the team selected 4,778 participants from the China Kadoorie Biobank, of whom 3,401 had a cardiovascular disease and 1,377 did not. They used a technique called targeted nuclear magnetic resonance to measure 225 metabolites in plasma samples taken from the participants’ blood. Of these metabolites, they identified 24 that were associated with self-reported levels of egg consumption.

Their analyses showed that individuals who ate a moderate amount of eggs had higher levels of a protein in their blood called apolipoprotein A1- a building-block of high-density lipoprotein (HDL), also known as ‘good lipoprotein’. These individuals especially had more large HDL molecules in their blood, which help clear cholesterol from the blood vessels and thereby protect against blockages that can lead to heart attacks and stroke.

The researchers further identified 14 metabolites that are linked to heart disease. They found that participants who ate fewer eggs had lower levels of beneficial metabolites and higher levels of harmful ones in their blood, compared to those who ate eggs more regularly.

“Together, our results provide a potential explanation for how eating a moderate amount of eggs can help protect against heart disease,” says author Canqing Yu, Associate Professor at the Department of Epidemiology and Biostatistics, Peking University. “More studies are needed to verify the causal roles that lipid metabolites play in the association between egg consumption and the risk of cardiovascular disease.”

“This study may also have implications for Chinese national dietary guidelines,” adds senior author Liming Li, Boya Distinguished Professor at the Department of Epidemiology and Biostatistics, Peking University. “Current health guidelines in China suggest eating one egg a day, but data indicate that the average consumption is lower than this. Our work highlights the need for more strategies to encourage moderate egg consumption among the population, to help lower the overall risk of cardiovascular disease.”

How eating eggs can boost heart health

) [7] => Array ( [title] => Click, clack y pop: los sonidos indican la salud de los arrecifes de coral, encuentra un estudio | Coral [link] => http://packagingnewsonline.com/sciences/click-clack-y-pop-los-sonidos-indican-la-salud-de-los-arrecifes-de-coral-encuentra-un-estudio-coral/ [dc] => Array ( [creator] => Harry Rivers ) [pubdate] => Wed, 25 May 2022 15:42:37 +0000 [category] => SciencesArrecifesclackClickCoralencuentraestudioindicanLosPopSaludsonidos [guid] => https://packagingnewsonline.com/sciences/click-clack-y-pop-los-sonidos-indican-la-salud-de-los-arrecifes-de-coral-encuentra-un-estudio-coral/ [description] => El sonido de estallido, como la leche golpeando el cereal de arroz inflado, que escuchas... [content] => Array ( [encoded] =>

El sonido de estallido, como la leche golpeando el cereal de arroz inflado, que escuchas cuando metes la cabeza bajo el agua no es tu oído ajustándose a una atmósfera diferente, es el sonido del mundo submarino. Los peces charlan entre ellos o mueven el agua con sus aletas; criaturas de caparazón duro raspan las superficies; los moluscos se arrastran a sus rincones.

Hay más en estos clics, clacks y pops que solo la maravilla melodiosa de todo. Los oceanógrafos ahora dicen que monitorear los sonidos de los arrecifes de coral puede servir como un método no intrusivo, económico y eficiente para rastrear el estado de su salud y para planificar mejores intervenciones de conservación a largo plazo.

Un buceador con un gran banco de pargos rayados azules sobre un arrecife saludable. Fotografía: Design Pics/Alamy

Una nueva investigación muestra que las comunidades de coral degradadas no suenan tan crepitantes y vibrantes como las sanas porque la reducción de la biodiversidad significa menos actividad, por lo que se puede juzgar la salud de un arrecife por su nivel de decibelios.

“El paisajismo sonoro nos da este latido realmente agradable de lo que está sucediendo en el arrecife”, dijo Lauren Freeman, oceanógrafa principal del Centro de Guerra Submarina Naval al presentar estos hallazgos a la Sociedad Acústica de América. “Y nuestros arrecifes de coral están bajo bastante presión por la sobrepesca, por la contaminación [and] del cambio climático.”

Freeman y su equipo monitorearon la acústica en los arrecifes de Hawái entre 2019 y 2020, comparándolos con los paisajes sonoros del océano cerca de las Bermudas y Nueva Inglaterra. Sumergieron micrófonos submarinos durante hasta seis meses y grabaron paisajes sonoros a intervalos.

Coral creciendo en una línea de pesca
Coral creciendo en una línea de pesca abandonada frente a Hawai. Los arrecifes están bajo la presión de la sobrepesca, así como de la contaminación y el cambio climático. Fotografía: David Fleetham/Alamy

Al desglosar los sonidos resultantes y analizarlos por microsegundos, intentaron reconstruir lo que estaba sucediendo bajo el agua: diferentes especies de peces alimentándose, ballenas pasando, motores de barcos rugiendo en la distancia.

La mayoría de los arrecifes están llenos de ruido cuando hace más calor, e inmediatamente antes de que se ponga y salga el sol. El clima más cálido tiende a correlacionarse con momentos de mayor actividad entre los ecosistemas, por ejemplo, muchas especies dan a luz en primavera, mientras que el atardecer y el amanecer representan una especie de “hora pico” submarina entre las criaturas diurnas y nocturnas, dijo Freeman.

Las comunidades de coral no saludables suenan menos vibrantes y también emiten más sonidos de alta frecuencia, encontraron los investigadores. Mientras que los arrecifes sanos dan lecturas de 0f 2-8 kilohercios, los arrecifes menos diversos tienden a estar por encima de los 12 kHz, ya que se superpoblan con macroalgas, que crean burbujas de oxígeno que flotan en la superficie y revientan, produciendo un sonido específico de alta frecuencia.

Los hallazgos ayudarán a más investigadores a utilizar paisajes sonoros para estudiar los arrecifes y monitorear el progreso de los proyectos de restauración que ya están en marcha. El levantamiento tradicional de arrecifes presenta muchos desafíos: gastos para botes y tripulaciones, limitaciones de tiempo para los buzos bajo el agua, las pequeñas áreas de arrecife que se pueden cubrir y el hecho de que simplemente hay demasiados arrecifes para monitorear. Las encuestas de sonido podrían cambiar todo eso.

Katey Lesneski, directora de ciencias de la restauración en Coral Vita, una granja de coral en tierra para la restauración de arrecifes, no participó en el estudio, pero dijo que se necesitaría más investigación para caracterizar cómo suena un arrecife saludable en diferentes regiones del mundo.

Sin embargo, se mostró prometedor. “Este tipo de recopilación de datos tiene el potencial de ser altamente rentable, cubrir un área grande y ser una fuente constante de información, a diferencia de los estudios de buceo intermitentes”, dijo.

) [summary] => El sonido de estallido, como la leche golpeando el cereal de arroz inflado, que escuchas... [atom_content] =>

El sonido de estallido, como la leche golpeando el cereal de arroz inflado, que escuchas cuando metes la cabeza bajo el agua no es tu oído ajustándose a una atmósfera diferente, es el sonido del mundo submarino. Los peces charlan entre ellos o mueven el agua con sus aletas; criaturas de caparazón duro raspan las superficies; los moluscos se arrastran a sus rincones.

Hay más en estos clics, clacks y pops que solo la maravilla melodiosa de todo. Los oceanógrafos ahora dicen que monitorear los sonidos de los arrecifes de coral puede servir como un método no intrusivo, económico y eficiente para rastrear el estado de su salud y para planificar mejores intervenciones de conservación a largo plazo.

Un buceador con un gran banco de pargos rayados azules sobre un arrecife saludable. Fotografía: Design Pics/Alamy

Una nueva investigación muestra que las comunidades de coral degradadas no suenan tan crepitantes y vibrantes como las sanas porque la reducción de la biodiversidad significa menos actividad, por lo que se puede juzgar la salud de un arrecife por su nivel de decibelios.

“El paisajismo sonoro nos da este latido realmente agradable de lo que está sucediendo en el arrecife”, dijo Lauren Freeman, oceanógrafa principal del Centro de Guerra Submarina Naval al presentar estos hallazgos a la Sociedad Acústica de América. “Y nuestros arrecifes de coral están bajo bastante presión por la sobrepesca, por la contaminación [and] del cambio climático.”

Freeman y su equipo monitorearon la acústica en los arrecifes de Hawái entre 2019 y 2020, comparándolos con los paisajes sonoros del océano cerca de las Bermudas y Nueva Inglaterra. Sumergieron micrófonos submarinos durante hasta seis meses y grabaron paisajes sonoros a intervalos.

Coral creciendo en una línea de pesca
Coral creciendo en una línea de pesca abandonada frente a Hawai. Los arrecifes están bajo la presión de la sobrepesca, así como de la contaminación y el cambio climático. Fotografía: David Fleetham/Alamy

Al desglosar los sonidos resultantes y analizarlos por microsegundos, intentaron reconstruir lo que estaba sucediendo bajo el agua: diferentes especies de peces alimentándose, ballenas pasando, motores de barcos rugiendo en la distancia.

La mayoría de los arrecifes están llenos de ruido cuando hace más calor, e inmediatamente antes de que se ponga y salga el sol. El clima más cálido tiende a correlacionarse con momentos de mayor actividad entre los ecosistemas, por ejemplo, muchas especies dan a luz en primavera, mientras que el atardecer y el amanecer representan una especie de “hora pico” submarina entre las criaturas diurnas y nocturnas, dijo Freeman.

Las comunidades de coral no saludables suenan menos vibrantes y también emiten más sonidos de alta frecuencia, encontraron los investigadores. Mientras que los arrecifes sanos dan lecturas de 0f 2-8 kilohercios, los arrecifes menos diversos tienden a estar por encima de los 12 kHz, ya que se superpoblan con macroalgas, que crean burbujas de oxígeno que flotan en la superficie y revientan, produciendo un sonido específico de alta frecuencia.

Los hallazgos ayudarán a más investigadores a utilizar paisajes sonoros para estudiar los arrecifes y monitorear el progreso de los proyectos de restauración que ya están en marcha. El levantamiento tradicional de arrecifes presenta muchos desafíos: gastos para botes y tripulaciones, limitaciones de tiempo para los buzos bajo el agua, las pequeñas áreas de arrecife que se pueden cubrir y el hecho de que simplemente hay demasiados arrecifes para monitorear. Las encuestas de sonido podrían cambiar todo eso.

Katey Lesneski, directora de ciencias de la restauración en Coral Vita, una granja de coral en tierra para la restauración de arrecifes, no participó en el estudio, pero dijo que se necesitaría más investigación para caracterizar cómo suena un arrecife saludable en diferentes regiones del mundo.

Sin embargo, se mostró prometedor. “Este tipo de recopilación de datos tiene el potencial de ser altamente rentable, cubrir un área grande y ser una fuente constante de información, a diferencia de los estudios de buceo intermitentes”, dijo.

) [8] => Array ( [title] => Mothers of twins are not more fertile, just lucky – NovLink [link] => http://packagingnewsonline.com/health-science-news/mothers-of-twins-are-not-more-fertile-just-lucky-novlink/ [dc] => Array ( [creator] => Betty Foster ) [pubdate] => Wed, 25 May 2022 15:05:30 +0000 [category] => Health & Science News [guid] => https://packagingnewsonline.com/health-science-news/mothers-of-twins-are-not-more-fertile-just-lucky-novlink/ [description] => Journal Reference: Ian J. Rickard, Colin Vullioud, François Rousset, Erik Postma, Samuli Helle, Virpi Lummaa,... [content] => Array ( [encoded] =>

Journal Reference:

  1. Ian J. Rickard, Colin Vullioud, François Rousset, Erik Postma, Samuli Helle, Virpi Lummaa, Ritva Kylli, Jenni E. Pettay, Eivin Røskaft, Gine R. Skjærvø, Charlotte Störmer, Eckart Voland, Dominique Waldvogel, Alexandre Courtiol. Mothers with higher twinning propensity had lower fertility in pre-industrial Europe. Nature Communications, 2022; 13 (1) DOI: 10.1038/s41467-022-30366-9

In humans, twinning usually occurs in about 1-3% of all births. Twinning is found in all populations despite being associated with a much higher risk of natal and postnatal health issues for both the mother and her children than single pregnancies. Given these risks, it seems that natural selection has prevented twinning from becoming more common during evolution. But why then has evolution by natural selection not prevented twinning altogether?

One common explanation has been that survival risks brought by twinning are partly hidden from natural selection because twinning comes with higher fertility. The idea is that women who are more fertile than average are also more likely to release more than one egg when they ovulate — making twinning a marker of high fertility. Many studies analysed demographic data and obtained results consistent with this view.

However, this new study shows that the former analyses have been flawed. “Previous studies are problematic because they cannot tell us whether mothers with twins give birth more often because they are especially fertile, or because giving birth more often increases the chance that one of these births is to twins,” explains principal investigator Alexandre Courtiol from the Leibniz Institute for Zoo and Wildlife Research in Germany.

The new results show that twinners are not unusually fertile. Previous science had mixed up cause and effect. “If a mother gives birth more often, it is more likely that one of these births is to twins — just like you are more likely to win if you buy more lottery tickets, or to be in a car accident if you drive a lot,” adds first author Ian Rickard from Durham University, UK. When the “lottery ticket effect” is taken into account, the authors found that mothers more likely to have twins actually gave birth less often — a result that contradicts previous findings.

To re-examine the relationship between twinning and fertility, the international team of 14 scientists combined large datasets of birth outcomes from several parts of pre-industrial Europe (today’s Finland, Sweden, Norway, Germany and Switzerland). “All these data originate from old parish records that have been meticulously digitised and transcribed,” explains co-author Virpi Lummaa from University of Turku, Finland. “To avoid the statistical trap that plagued former studies, we also had to deploy efficient and carefully calibrated statistical procedures,” adds co-author François Rousset from the Institut des Sciences de l’Evolution in Montpellier, France.

Figuring out what shapes the relationship between twinning and fertility is not only a question of academic interest but also a matter of public health. Indeed, biomedical studies looking for ways to improve female fertility have compared mothers with and without twins. However, co-author Erik Postma from the University of Exeter in the UK points out that, “such study designs ignore the multitude of factors influencing how often a woman gives birth, which will mask any genuine differences in physiology between mothers with and without twins.” In short, comparing groups of mothers with twins to groups of mothers without may hide the effects of twinning and fertility genes where they exist, or create the illusion of these if they do not exist.

“There is still much we do not understand about twinning, but our study suggests that twinning has not been eliminated by natural selection for two reasons. First, twinning is a consequence of double ovulation, which compensates for reproductive ageing and benefits all but the youngest of mothers. Second, when the risk of early mortality of twins is not too high, twinning is associated with larger family sizes although women with twins give birth less often. This is because twin births bring two offspring rather than one,” concludes Courtiol.

Mothers of twins are not more fertile, just lucky

) [summary] => Journal Reference: Ian J. Rickard, Colin Vullioud, François Rousset, Erik Postma, Samuli Helle, Virpi Lummaa,... [atom_content] =>

Journal Reference:

  1. Ian J. Rickard, Colin Vullioud, François Rousset, Erik Postma, Samuli Helle, Virpi Lummaa, Ritva Kylli, Jenni E. Pettay, Eivin Røskaft, Gine R. Skjærvø, Charlotte Störmer, Eckart Voland, Dominique Waldvogel, Alexandre Courtiol. Mothers with higher twinning propensity had lower fertility in pre-industrial Europe. Nature Communications, 2022; 13 (1) DOI: 10.1038/s41467-022-30366-9

In humans, twinning usually occurs in about 1-3% of all births. Twinning is found in all populations despite being associated with a much higher risk of natal and postnatal health issues for both the mother and her children than single pregnancies. Given these risks, it seems that natural selection has prevented twinning from becoming more common during evolution. But why then has evolution by natural selection not prevented twinning altogether?

One common explanation has been that survival risks brought by twinning are partly hidden from natural selection because twinning comes with higher fertility. The idea is that women who are more fertile than average are also more likely to release more than one egg when they ovulate — making twinning a marker of high fertility. Many studies analysed demographic data and obtained results consistent with this view.

However, this new study shows that the former analyses have been flawed. “Previous studies are problematic because they cannot tell us whether mothers with twins give birth more often because they are especially fertile, or because giving birth more often increases the chance that one of these births is to twins,” explains principal investigator Alexandre Courtiol from the Leibniz Institute for Zoo and Wildlife Research in Germany.

The new results show that twinners are not unusually fertile. Previous science had mixed up cause and effect. “If a mother gives birth more often, it is more likely that one of these births is to twins — just like you are more likely to win if you buy more lottery tickets, or to be in a car accident if you drive a lot,” adds first author Ian Rickard from Durham University, UK. When the “lottery ticket effect” is taken into account, the authors found that mothers more likely to have twins actually gave birth less often — a result that contradicts previous findings.

To re-examine the relationship between twinning and fertility, the international team of 14 scientists combined large datasets of birth outcomes from several parts of pre-industrial Europe (today’s Finland, Sweden, Norway, Germany and Switzerland). “All these data originate from old parish records that have been meticulously digitised and transcribed,” explains co-author Virpi Lummaa from University of Turku, Finland. “To avoid the statistical trap that plagued former studies, we also had to deploy efficient and carefully calibrated statistical procedures,” adds co-author François Rousset from the Institut des Sciences de l’Evolution in Montpellier, France.

Figuring out what shapes the relationship between twinning and fertility is not only a question of academic interest but also a matter of public health. Indeed, biomedical studies looking for ways to improve female fertility have compared mothers with and without twins. However, co-author Erik Postma from the University of Exeter in the UK points out that, “such study designs ignore the multitude of factors influencing how often a woman gives birth, which will mask any genuine differences in physiology between mothers with and without twins.” In short, comparing groups of mothers with twins to groups of mothers without may hide the effects of twinning and fertility genes where they exist, or create the illusion of these if they do not exist.

“There is still much we do not understand about twinning, but our study suggests that twinning has not been eliminated by natural selection for two reasons. First, twinning is a consequence of double ovulation, which compensates for reproductive ageing and benefits all but the youngest of mothers. Second, when the risk of early mortality of twins is not too high, twinning is associated with larger family sizes although women with twins give birth less often. This is because twin births bring two offspring rather than one,” concludes Courtiol.

Mothers of twins are not more fertile, just lucky

) [9] => Array ( [title] => Nueva colección de Balenciaga, que pronto se probarán Kim Kardashian y Kanye West [link] => http://packagingnewsonline.com/magazine/nueva-coleccion-de-balenciaga-que-pronto-se-probaran-kim-kardashian-y-kanye-west/ [dc] => Array ( [creator] => Susan Hall ) [pubdate] => Wed, 25 May 2022 14:44:54 +0000 [category] => MagazineBalenciagacoleccióncolección balenciagaKanyekanye westKardashianKimnoticias de celebridadesnuevaprobaránprontoWest [guid] => https://packagingnewsonline.com/magazine/nueva-coleccion-de-balenciaga-que-pronto-se-probaran-kim-kardashian-y-kanye-west/ [description] => Imágenes insólitas de la nueva colección de Balenciaga, que pronto se probarán Kim Kardashian y... [content] => Array ( [encoded] =>

Imágenes insólitas de la nueva colección de Balenciaga, que pronto se probarán Kim Kardashian y Kanye West
El director creativo de la casa francesa Demna trajo la colección Resort 2023 a Nueva York. En él, trató de exponer los vicios de la sociedad moderna e hizo una colaboración con Adidas.

La mañana del domingo en la Bolsa de Valores de Nueva York, quizás, fue la más inusual en la historia de la institución financiera. Las celebridades tomaron el lugar de los inquietos corredores: Pharrell Williams con su familia, Ye (o, como solíamos llamarlo, Kanye West), Chloe Sevigny, Megan Thee Stallion, Frank Ocean, Alexa Demi e incluso el alcalde de la Gran Manzana. , Eric Adams. El motivo de tan alta concentración de estrellas en un solo lugar fue que Demna, el director creativo de Balenciaga, trajo la colección Resort 2023 a Nueva York.

Los monos de látex ocultaron por completo los rostros de las modelos del programa; eran asaltantes corporativos que se dirigían a una rave oa una fiesta privada de adultos. Demna ha vuelto a tocar el nervio del tiempo: Wall Street se ha visto muy afectado en las últimas semanas por la exageración que rodea a una recesión inminente en los EE. UU., por lo que la corrida del mercado de valores fue solo otra confirmación de la alarma general.

El director creativo de Balenciaga mostró en la improvisada pasarela abrigos de lana y seda satinada con hombros marcados, maxi vestidos resplandecientes con cientos de lentejuelas, en los que podemos imaginar a Kim Kardashian, volantes midis plisados ​​de lunares, lujosas blusas con lazos en el cuello y pieles de cocodrilo. -faldas lápiz efecto. Sin embargo, la principal noticia durante el desfile fue la presentación de la colaboración entre la casa de moda francesa y Adidas.
Los voluminosos chándales que se convirtieron en la firma de Demna hace unos años han recibido las Tristripes de Adidas, al igual que las icónicas zapatillas Triple S y los bolsos de cuero de Balenciaga.

) [summary] => Imágenes insólitas de la nueva colección de Balenciaga, que pronto se probarán Kim Kardashian y... [atom_content] =>

Imágenes insólitas de la nueva colección de Balenciaga, que pronto se probarán Kim Kardashian y Kanye West
El director creativo de la casa francesa Demna trajo la colección Resort 2023 a Nueva York. En él, trató de exponer los vicios de la sociedad moderna e hizo una colaboración con Adidas.

La mañana del domingo en la Bolsa de Valores de Nueva York, quizás, fue la más inusual en la historia de la institución financiera. Las celebridades tomaron el lugar de los inquietos corredores: Pharrell Williams con su familia, Ye (o, como solíamos llamarlo, Kanye West), Chloe Sevigny, Megan Thee Stallion, Frank Ocean, Alexa Demi e incluso el alcalde de la Gran Manzana. , Eric Adams. El motivo de tan alta concentración de estrellas en un solo lugar fue que Demna, el director creativo de Balenciaga, trajo la colección Resort 2023 a Nueva York.

Los monos de látex ocultaron por completo los rostros de las modelos del programa; eran asaltantes corporativos que se dirigían a una rave oa una fiesta privada de adultos. Demna ha vuelto a tocar el nervio del tiempo: Wall Street se ha visto muy afectado en las últimas semanas por la exageración que rodea a una recesión inminente en los EE. UU., por lo que la corrida del mercado de valores fue solo otra confirmación de la alarma general.

El director creativo de Balenciaga mostró en la improvisada pasarela abrigos de lana y seda satinada con hombros marcados, maxi vestidos resplandecientes con cientos de lentejuelas, en los que podemos imaginar a Kim Kardashian, volantes midis plisados ​​de lunares, lujosas blusas con lazos en el cuello y pieles de cocodrilo. -faldas lápiz efecto. Sin embargo, la principal noticia durante el desfile fue la presentación de la colaboración entre la casa de moda francesa y Adidas.
Los voluminosos chándales que se convirtieron en la firma de Demna hace unos años han recibido las Tristripes de Adidas, al igual que las icónicas zapatillas Triple S y los bolsos de cuero de Balenciaga.

) ) [channel] => Array ( [title] => Packaging News Online [link] => http://packagingnewsonline.com [lastbuilddate] => Wed, 25 May 2022 20:25:30 +0000 [language] => en-US [sy] => Array ( [updateperiod] => hourly [updatefrequency] => 1 ) [generator] => https://wordpress.org/?v=6.0 [tagline] => ) [textinput] => Array ( ) [image] => Array ( ) [feed_type] => RSS [feed_version] => 2.0 [stack] => Array ( ) [inchannel] => [initem] => [incontent] => [intextinput] => [inimage] => [current_field] => [current_namespace] => [ERROR] => [_CONTENT_CONSTRUCTS] => Array ( [0] => content [1] => summary [2] => info [3] => title [4] => tagline [5] => copyright ) [last_modified] => Wed, 25 May 2022 20:29:45 GMT [etag] => 905QqNqRmzll3x492MC29RUaxow )