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Algeria shaken by Burkina Faso!
The warming climate is causing animals to ?shapeshift? ? NovLink
Perseverance Successfully Grabs First Mars Sample ? Sky & Telescope
In Mexico, the criminalization of abortion deemed unconstitutional by the Supreme Court
Lockheed, Northrop Grumman Invest in Space Startup Orbit Fab
Random Massacre: The Story of the Family Killed in Lakeland, Florida by an Unknown Man | Univision News Events
NASA chief on Blue Origin protest: ?They have every right? to sue
An Australian evolutionary arms race ? NovLink
Shape Memory Alloys for Aircraft Landing Noise Reduction
WORLD duel: ?Only you and the AfD believe that,? accuses Brinkhaus Wagenknecht

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                    [title] => Algeria shaken by Burkina Faso!
                    [link] => https://mynewspaper.xyz/international/2021/09/07/algeria-shaken-by-burkina-faso/
                    [dc] => Array
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                            [creator] => Betty Foster
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                    [pubdate] => Tue, 07 Sep 2021 22:29:08 +0000
                    [category] => InternationalAlgeriaBurkinaFasoshaken
                    [guid] => https://mynewspaper.xyz/international/2021/09/07/algeria-shaken-by-burkina-faso/
                    [description] => The road to the 2022 World Cup will not be that easy for Algeria! After...
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The road to the 2022 World Cup will not be that easy for Algeria! After their card against modest Djibouti (8-0), Djamel Belmadi’s men were seriously heckled by Burkina Faso (1-1) on Tuesday on the occasion of the 2e playoff day. This 29e Consecutive undefeated match for the Fennecs will look like a poor performance even if it is necessary to put into perspective given that it was an away meeting against the most difficult opponent of the group, even if the Stallions “Received” in Marrakech in Morocco and not in Ouagadougou, for lack of a stadium up to standard.

The evening had started in an ideal way for the reigning African champions who took the lead thanks to Feghouli (0-1, 18e). Back in the eleven, the midfielder from Galatasaray had benefited from a caviar from Slimani, preferred to Bounedjah, and especially a bright pass from Belaïli at the start of the action. It even took two big saves from Koffi against Bensebaini then Slimani to prevent the Algerians from widening the gap. But the Burkinabè were starting to wake up before the break, like their increasingly restless wingers.

This physiognomy was accentuated on the return from the locker room with the Greens on the verge of rupture. If M’Bolhi delayed the deadline by making a courageous exit, he logically ended up bowing at close range to the striker of Standard de Liège, Abdoul Fessal Tapsoba, served on a cross from Lassina Traoré (1-1, 64e). Two other alerts followed on the Algerian goal and the Fennecs are not unhappy to leave with a point in view of their very complicated second period. A warning free of charge this time … For their part, the Stallions, yet deprived of many executives (the Traoré brothers, Edmond Tapsoba, Charles Kaboré) may almost have regrets and promise to give the Algerians to the end of the line. .

Classification : Algeria 4 pts, Burkina Faso 4 pts, Niger 3 pts, Djibouti 0 pt

The goals in video

The compos

May be an image of text that says' FIFA WORLD CUP ELIMINATORIES, QATAR 2022 2"FIFA DAY GROUP A ELEVEN STARTING STALLIONS Hervé KOFFI (GK) VS Issoufou DAYO (Capi) Steeve YAGO Issa KABORE O. Abass TRAORE Adama GUIRA Bryan DABO Gustavo SANGARE Zakaria SANOGO Fessal TAPSOBA Frank L. TRAORE KONfé Fédé www.fédé by Football Coach: Kamou MALO @ FBF226 @fbffoot '

Can be an image of 1 person and text that says '23 STARTING XI VS Rais M'BOLHI 18 #BFAALG Mehdi ZEFFANE 21 Ramy BENSEBAINI 2 Aissa MANDI 4 Djamel BENLAMRI 6 Ramiz ZERROUKI Ismael BENNACER 22 10 c 7 Sofiane FEGHOULI Riyad MAHREZ 8 Youcef BELSEBAINI Riyad MAHREZ 8 13 Substitutes islam SLIMANI Oukidja Khacef -Halaimia- Touba Bedrane Zorgane Belkebla Boudaoui Delort- Ghezzal- Benrahma Bounedjah f Iam Lesverts.faf Lesrts mobilis OFFICIAL PARTNER www.faf.dz adidas Condor Coca-Cola ASPETAR '

) [summary] => The road to the 2022 World Cup will not be that easy for Algeria! After... [atom_content] =>

The road to the 2022 World Cup will not be that easy for Algeria! After their card against modest Djibouti (8-0), Djamel Belmadi’s men were seriously heckled by Burkina Faso (1-1) on Tuesday on the occasion of the 2e playoff day. This 29e Consecutive undefeated match for the Fennecs will look like a poor performance even if it is necessary to put into perspective given that it was an away meeting against the most difficult opponent of the group, even if the Stallions “Received” in Marrakech in Morocco and not in Ouagadougou, for lack of a stadium up to standard.

The evening had started in an ideal way for the reigning African champions who took the lead thanks to Feghouli (0-1, 18e). Back in the eleven, the midfielder from Galatasaray had benefited from a caviar from Slimani, preferred to Bounedjah, and especially a bright pass from Belaïli at the start of the action. It even took two big saves from Koffi against Bensebaini then Slimani to prevent the Algerians from widening the gap. But the Burkinabè were starting to wake up before the break, like their increasingly restless wingers.

This physiognomy was accentuated on the return from the locker room with the Greens on the verge of rupture. If M’Bolhi delayed the deadline by making a courageous exit, he logically ended up bowing at close range to the striker of Standard de Liège, Abdoul Fessal Tapsoba, served on a cross from Lassina Traoré (1-1, 64e). Two other alerts followed on the Algerian goal and the Fennecs are not unhappy to leave with a point in view of their very complicated second period. A warning free of charge this time … For their part, the Stallions, yet deprived of many executives (the Traoré brothers, Edmond Tapsoba, Charles Kaboré) may almost have regrets and promise to give the Algerians to the end of the line. .

Classification : Algeria 4 pts, Burkina Faso 4 pts, Niger 3 pts, Djibouti 0 pt

The goals in video

The compos

May be an image of text that says' FIFA WORLD CUP ELIMINATORIES, QATAR 2022 2"FIFA DAY GROUP A ELEVEN STARTING STALLIONS Hervé KOFFI (GK) VS Issoufou DAYO (Capi) Steeve YAGO Issa KABORE O. Abass TRAORE Adama GUIRA Bryan DABO Gustavo SANGARE Zakaria SANOGO Fessal TAPSOBA Frank L. TRAORE KONfé Fédé www.fédé by Football Coach: Kamou MALO @ FBF226 @fbffoot '

Can be an image of 1 person and text that says '23 STARTING XI VS Rais M'BOLHI 18 #BFAALG Mehdi ZEFFANE 21 Ramy BENSEBAINI 2 Aissa MANDI 4 Djamel BENLAMRI 6 Ramiz ZERROUKI Ismael BENNACER 22 10 c 7 Sofiane FEGHOULI Riyad MAHREZ 8 Youcef BELSEBAINI Riyad MAHREZ 8 13 Substitutes islam SLIMANI Oukidja Khacef -Halaimia- Touba Bedrane Zorgane Belkebla Boudaoui Delort- Ghezzal- Benrahma Bounedjah f Iam Lesverts.faf Lesrts mobilis OFFICIAL PARTNER www.faf.dz adidas Condor Coca-Cola ASPETAR '

[date_timestamp] => 1631053748 ) [1] => Array ( [title] => The warming climate is causing animals to ?shapeshift? ? NovLink [link] => https://mynewspaper.xyz/health-science-news/2021/09/07/the-warming-climate-is-causing-animals-to-shapeshift-novlink/ [dc] => Array ( [creator] => Betty Foster ) [pubdate] => Tue, 07 Sep 2021 22:23:01 +0000 [category] => Health & Science News [guid] => https://mynewspaper.xyz/health-science-news/2021/09/07/the-warming-climate-is-causing-animals-to-shapeshift-novlink/ [description] => Journal Reference: Sara Ryding, Marcel Klaassen, Glenn J. Tattersall, Janet L. Gardner, Matthew R.E. Symonds.... [content] => Array ( [encoded] =>

Journal Reference:

  1. Sara Ryding, Marcel Klaassen, Glenn J. Tattersall, Janet L. Gardner, Matthew R.E. Symonds. Shape-shifting: changing animal morphologies as a response to climatic warming. Trends in Ecology & Evolution, 2021; DOI: 10.1016/j.tree.2021.07.006

?A lot of the time when climate change is discussed in mainstream media, people are asking ?can humans overcome this??, or ?what technology can solve this??. It?s high time we recognized that animals also have to adapt to these changes, but this is occurring over a far shorter timescale than would have occurred through most of evolutionary time,? says Ryding. ?The climate change that we have created is heaping a whole lot of pressure on them, and while some species will adapt, others will not.?

Ryding notes that climate change is a complex and multifaceted phenomenon that?s been occurring progressively, so it is difficult to pinpoint just one cause of the shapeshifting. But these changes have been occurring across wide geographical regions and among a diverse array of species, so there is little in common apart from climate change.

Strong shapeshifting has particularly been reported in birds. Several species of Australian parrot have shown, on average, a 4%-10% increase in bill size since 1871, and this is positively correlated with the summer temperature each year. North American dark-eyed juncos, a type of small songbird, had a link between increased bill size and short-term temperature extremes in cold environments. There have also been reported changes in mammalian species. Researchers have reported tail length increases in wood mice and tail and leg size increases in masked shrews.

?The increases in appendage size we see so far are quite small ? less than 10% ? so the changes are unlikely to be immediately noticeable,? says Ryding. ?However, prominent appendages such as ears are predicted to increase ? so we might end up with a live-action Dumbo in the not-so-distant future.?

Next, Ryding intends to investigate shapeshifting in Australian birds firsthand by 3D scanning museum bird specimens from the past 100 years. It will give her team a better understanding of which birds are changing appendage size due to climate change and why.

?Shapeshifting does not mean that animals are coping with climate change and that all is ?fine,? says Ryding. ?It just means they are evolving to survive it ? but we?re not sure what the other ecological consequences of these changes are, or indeed that all species are capable of changing and surviving.?

The authors received financial support from the Australian Research Council Discovery Project, an Australian Research Council Future Fellowship, and a Natural Sciences and Engineering Research Council of Canada Discovery Grant.

The warming climate is causing animals to ‘shapeshift’

) [summary] => Journal Reference: Sara Ryding, Marcel Klaassen, Glenn J. Tattersall, Janet L. Gardner, Matthew R.E. Symonds.... [atom_content] =>

Journal Reference:

  1. Sara Ryding, Marcel Klaassen, Glenn J. Tattersall, Janet L. Gardner, Matthew R.E. Symonds. Shape-shifting: changing animal morphologies as a response to climatic warming. Trends in Ecology & Evolution, 2021; DOI: 10.1016/j.tree.2021.07.006

?A lot of the time when climate change is discussed in mainstream media, people are asking ?can humans overcome this??, or ?what technology can solve this??. It?s high time we recognized that animals also have to adapt to these changes, but this is occurring over a far shorter timescale than would have occurred through most of evolutionary time,? says Ryding. ?The climate change that we have created is heaping a whole lot of pressure on them, and while some species will adapt, others will not.?

Ryding notes that climate change is a complex and multifaceted phenomenon that?s been occurring progressively, so it is difficult to pinpoint just one cause of the shapeshifting. But these changes have been occurring across wide geographical regions and among a diverse array of species, so there is little in common apart from climate change.

Strong shapeshifting has particularly been reported in birds. Several species of Australian parrot have shown, on average, a 4%-10% increase in bill size since 1871, and this is positively correlated with the summer temperature each year. North American dark-eyed juncos, a type of small songbird, had a link between increased bill size and short-term temperature extremes in cold environments. There have also been reported changes in mammalian species. Researchers have reported tail length increases in wood mice and tail and leg size increases in masked shrews.

?The increases in appendage size we see so far are quite small ? less than 10% ? so the changes are unlikely to be immediately noticeable,? says Ryding. ?However, prominent appendages such as ears are predicted to increase ? so we might end up with a live-action Dumbo in the not-so-distant future.?

Next, Ryding intends to investigate shapeshifting in Australian birds firsthand by 3D scanning museum bird specimens from the past 100 years. It will give her team a better understanding of which birds are changing appendage size due to climate change and why.

?Shapeshifting does not mean that animals are coping with climate change and that all is ?fine,? says Ryding. ?It just means they are evolving to survive it ? but we?re not sure what the other ecological consequences of these changes are, or indeed that all species are capable of changing and surviving.?

The authors received financial support from the Australian Research Council Discovery Project, an Australian Research Council Future Fellowship, and a Natural Sciences and Engineering Research Council of Canada Discovery Grant.

The warming climate is causing animals to ‘shapeshift’

[date_timestamp] => 1631053381 ) [2] => Array ( [title] => Perseverance Successfully Grabs First Mars Sample ? Sky & Telescope [link] => https://mynewspaper.xyz/space/2021/09/07/perseverance-successfully-grabs-first-mars-sample-sky-telescope/ [dc] => Array ( [creator] => Betty Foster ) [pubdate] => Tue, 07 Sep 2021 22:09:35 +0000 [category] => Space [guid] => https://mynewspaper.xyz/space/2021/09/07/perseverance-successfully-grabs-first-mars-sample-sky-telescope/ [description] => The hole drilled during Perseverance’s first sample collection in the Rochette rock. NASA / JPL-Caltech... [content] => Array ( [encoded] =>

After a tense start to the sample collection campaign for NASA?s Perseverance rover on August 5th, researchers finally confirmed on September 6th that the rover has successfully collected a pencil-size core from Jezero Crater on Mars.

?NASA has a history of setting ambitious goals and then accomplishing them, reflecting the nation?s commitment to discovery and innovation,? says NASA administrator Bill Nelson in a recent press release. ?This is a momentous achievement and I can?t wait to see the incredible discoveries produced by Perseverance and our team.?

The sampling process began on September 1st, when the rover deployed the rotary-percussive drill on the end of its robotic arm to drill a core sample from the small table-size rock dubbed ?Rochette.? This boulder is part of a 1-kilometer (half-mile)-long ridgeline named ?Artuby.?

The Mastcam-Z camera documented the initial collection process, and preliminary success was announced on September 3rd.

However, mission controllers had to wait for a better sun angle to see deep inside the tube to ensure that the sample had really been collected. The team uses a ?percuss to ingest? maneuver during collection, vibrating the tube and drill bit several times to clear the outer tube edge of residue in preparation for sealing. This can cause the collected material to slide further into the tube, out of the initial visibility of Mastcam-Z if the lighting isn?t favorable.

Perseverance ran into problems on its first sampling sampling attempt in August, when a sampling run came up empty. Team members think that rock fragmented as the drill ?rotary-percussed? into it. (The initial sample did, however, collect Martian atmosphere, so not all was lost.) That’s why the team really wanted the images to confirm a successful run ? and now, new images show the second attempt was indeed successful.

CacheCam view of first sample
CacheCam confirms the first core sample collection.
NASA / JPL-Caltech

The rover moved this first sample tube, with serial number 266, to the Sampling and Caching System, where it was measured, imaged, and hermetically sealed. With more than 3,000 moving parts, the caching system is one of the most complex mechanisms ever fielded on a rover or spacecraft.

Perseverance has 43 sample tubes and five empty ?witness tubes? used to gauge the baseline environment prior to collection. Ultimately, the team wants to collect at least 20 samples from Jezero Crater.

?Getting the first sample under our belt is a huge milestone,? says Ken Farley (JPL-Caltech) in a recent press release. ?When we get these samples back on Earth, they are going to tell us a great deal about some of the earliest chapters in the evolution of Mars.?

Martian Geology

Scientists think the exposed Artuby ridgeline that Perseverance is exploring contains exposed layers of ancient bedrock. The rover’s first collection campaign will have it travel between 2.5 and 5 kilometers back to the original Octavia E. Butler landing site. It will collect samples of this ancient rock along the way, filling up to eight tubes.

From there, Perseverance will head to the northwest to another intriguing area: the fan-shaped delta, where an ancient river spilled into Jezero. This region should be rich in clay deposits.

Sealed Tube
The first verified sample tube of Martian soil, sealed and verified by CacheCam.
NASA / JPL-Caltech

Unlike other landers and rovers, Perseverance is explicitly designed to be an astrobiology mission, and looks to specifically address the question of whether or not life once existed on Mars. Characterizing the past geology and climate of Jezero are key to that exploration.

Perseverance will eventually deposit the collected sample tubes for eventual pickup and Earth return by a future mission. Northrop Grumman is already contracted to build the propulsion system for the Mars ascent vehicle for Earth return, and the European Space Agency will collaborate with NASA for the sample return mission and in-depth analysis back on Earth sometime in the coming decade.

Congrats to the Perseverance team on a first successful sample collection, and many more to come!


Advertisement

) [summary] => The hole drilled during Perseverance’s first sample collection in the Rochette rock. NASA / JPL-Caltech... [atom_content] =>

After a tense start to the sample collection campaign for NASA?s Perseverance rover on August 5th, researchers finally confirmed on September 6th that the rover has successfully collected a pencil-size core from Jezero Crater on Mars.

?NASA has a history of setting ambitious goals and then accomplishing them, reflecting the nation?s commitment to discovery and innovation,? says NASA administrator Bill Nelson in a recent press release. ?This is a momentous achievement and I can?t wait to see the incredible discoveries produced by Perseverance and our team.?

The sampling process began on September 1st, when the rover deployed the rotary-percussive drill on the end of its robotic arm to drill a core sample from the small table-size rock dubbed ?Rochette.? This boulder is part of a 1-kilometer (half-mile)-long ridgeline named ?Artuby.?

The Mastcam-Z camera documented the initial collection process, and preliminary success was announced on September 3rd.

However, mission controllers had to wait for a better sun angle to see deep inside the tube to ensure that the sample had really been collected. The team uses a ?percuss to ingest? maneuver during collection, vibrating the tube and drill bit several times to clear the outer tube edge of residue in preparation for sealing. This can cause the collected material to slide further into the tube, out of the initial visibility of Mastcam-Z if the lighting isn?t favorable.

Perseverance ran into problems on its first sampling sampling attempt in August, when a sampling run came up empty. Team members think that rock fragmented as the drill ?rotary-percussed? into it. (The initial sample did, however, collect Martian atmosphere, so not all was lost.) That’s why the team really wanted the images to confirm a successful run ? and now, new images show the second attempt was indeed successful.

CacheCam view of first sample
CacheCam confirms the first core sample collection.
NASA / JPL-Caltech

The rover moved this first sample tube, with serial number 266, to the Sampling and Caching System, where it was measured, imaged, and hermetically sealed. With more than 3,000 moving parts, the caching system is one of the most complex mechanisms ever fielded on a rover or spacecraft.

Perseverance has 43 sample tubes and five empty ?witness tubes? used to gauge the baseline environment prior to collection. Ultimately, the team wants to collect at least 20 samples from Jezero Crater.

?Getting the first sample under our belt is a huge milestone,? says Ken Farley (JPL-Caltech) in a recent press release. ?When we get these samples back on Earth, they are going to tell us a great deal about some of the earliest chapters in the evolution of Mars.?

Martian Geology

Scientists think the exposed Artuby ridgeline that Perseverance is exploring contains exposed layers of ancient bedrock. The rover’s first collection campaign will have it travel between 2.5 and 5 kilometers back to the original Octavia E. Butler landing site. It will collect samples of this ancient rock along the way, filling up to eight tubes.

From there, Perseverance will head to the northwest to another intriguing area: the fan-shaped delta, where an ancient river spilled into Jezero. This region should be rich in clay deposits.

Sealed Tube
The first verified sample tube of Martian soil, sealed and verified by CacheCam.
NASA / JPL-Caltech

Unlike other landers and rovers, Perseverance is explicitly designed to be an astrobiology mission, and looks to specifically address the question of whether or not life once existed on Mars. Characterizing the past geology and climate of Jezero are key to that exploration.

Perseverance will eventually deposit the collected sample tubes for eventual pickup and Earth return by a future mission. Northrop Grumman is already contracted to build the propulsion system for the Mars ascent vehicle for Earth return, and the European Space Agency will collaborate with NASA for the sample return mission and in-depth analysis back on Earth sometime in the coming decade.

Congrats to the Perseverance team on a first successful sample collection, and many more to come!


Advertisement

[date_timestamp] => 1631052575 ) [3] => Array ( [title] => In Mexico, the criminalization of abortion deemed unconstitutional by the Supreme Court [link] => https://mynewspaper.xyz/international/2021/09/07/in-mexico-the-criminalization-of-abortion-deemed-unconstitutional-by-the-supreme-court/ [dc] => Array ( [creator] => Betty Foster ) [pubdate] => Tue, 07 Sep 2021 21:28:23 +0000 [category] => InternationalabortionCourtcriminalizationdeemedMexicoSupremeunconstitutional [guid] => https://mynewspaper.xyz/international/2021/09/07/in-mexico-the-criminalization-of-abortion-deemed-unconstitutional-by-the-supreme-court/ [description] => Women protest for the right to a legal and safe abortion in Mexico City in... [content] => Array ( [encoded] =>

With the entry into force of a particularly restrictive law on abortion in Texas, the international horizon of the right of women to dispose of their bodies has brightened. The Supreme Court of Mexico ruled unconstitutional the criminalization of abortion, in a vote on Tuesday, September 7, unanimously.

“This is one more step in the historic struggle for equality [des femmes], dignity and the full exercise of their rights ?, declared the President of the Court, Arturo Zaldivar. This vote paves the way for access to abortion for all women in the country. “From now on, it will not be possible, without violating the criteria of the tribunal and the Constitution, to prosecute a woman who aborts in the cases validated by this tribunal”, underlined Mr. Zaldivar.

Read also In Mexico, fierce battle over the right to abortion

The decision follows a two-day plenary session of the court, which met to consider the constitutionality of articles of the penal code of the state of Coahuila, in northern Mexico. These articles punish women who have abortions, with sentences of up to three years in prison. They were thus declared unconstitutional by the unanimity of the ten judges present, which establishes a case law for the courts of the country.

Abortion allowed up to twelve weeks in Mexico City

A judicial source explained that this judgment has indeed a national scope, because it will allow women who live in states where abortion is criminalized to have access to abortion by decision of a judge.

“The woman must ask [aux services de santé] to perform the abortion, and if they refuse to do so, she may appear before a judge and file an appeal. The judge will now have the power to order that abortion be performed. “, explained Alex Alí Méndez, constitutional lawyer and expert on abortion issues. Another consequence of the Supreme Court ruling, the lawyer added, is that it will be a tool for women imprisoned for having abortions to regain their freedom.

Article reserved for our subscribers Read also The legalization of abortion in Argentina, such a long struggle

Mexico is a federated country where the states are autonomous in the adoption of their laws, but the latter can be invalidated by means of an appeal when they contravene decisions of the Supreme Court which make jurisprudence, such as this one. this. Mexico City decriminalized abortion up to twelve weeks gestation in 2007, and it is performed free of charge in city hall clinics whether or not women live in the neighborhood. The states of Oaxaca, Veracruz and Hidalgo also apply the same policy.

The World with AFP

) [summary] => Women protest for the right to a legal and safe abortion in Mexico City in... [atom_content] =>

With the entry into force of a particularly restrictive law on abortion in Texas, the international horizon of the right of women to dispose of their bodies has brightened. The Supreme Court of Mexico ruled unconstitutional the criminalization of abortion, in a vote on Tuesday, September 7, unanimously.

“This is one more step in the historic struggle for equality [des femmes], dignity and the full exercise of their rights ?, declared the President of the Court, Arturo Zaldivar. This vote paves the way for access to abortion for all women in the country. “From now on, it will not be possible, without violating the criteria of the tribunal and the Constitution, to prosecute a woman who aborts in the cases validated by this tribunal”, underlined Mr. Zaldivar.

Read also In Mexico, fierce battle over the right to abortion

The decision follows a two-day plenary session of the court, which met to consider the constitutionality of articles of the penal code of the state of Coahuila, in northern Mexico. These articles punish women who have abortions, with sentences of up to three years in prison. They were thus declared unconstitutional by the unanimity of the ten judges present, which establishes a case law for the courts of the country.

Abortion allowed up to twelve weeks in Mexico City

A judicial source explained that this judgment has indeed a national scope, because it will allow women who live in states where abortion is criminalized to have access to abortion by decision of a judge.

“The woman must ask [aux services de santé] to perform the abortion, and if they refuse to do so, she may appear before a judge and file an appeal. The judge will now have the power to order that abortion be performed. “, explained Alex Alí Méndez, constitutional lawyer and expert on abortion issues. Another consequence of the Supreme Court ruling, the lawyer added, is that it will be a tool for women imprisoned for having abortions to regain their freedom.

Article reserved for our subscribers Read also The legalization of abortion in Argentina, such a long struggle

Mexico is a federated country where the states are autonomous in the adoption of their laws, but the latter can be invalidated by means of an appeal when they contravene decisions of the Supreme Court which make jurisprudence, such as this one. this. Mexico City decriminalized abortion up to twelve weeks gestation in 2007, and it is performed free of charge in city hall clinics whether or not women live in the neighborhood. The states of Oaxaca, Veracruz and Hidalgo also apply the same policy.

The World with AFP

[date_timestamp] => 1631050103 ) [4] => Array ( [title] => Lockheed, Northrop Grumman Invest in Space Startup Orbit Fab [link] => https://mynewspaper.xyz/space/2021/09/07/lockheed-northrop-grumman-invest-in-space-startup-orbit-fab/ [dc] => Array ( [creator] => Betty Foster ) [pubdate] => Tue, 07 Sep 2021 21:08:33 +0000 [category] => SpaceaerospaceAerospace and Defenseaerospace productsAerospace Products/PartsAerospace/DefenseCapital Expenditurecorporatecorporate strategyCorporate Strategy/PlanningCorporate/Industrial Newsdefensedefense equipmentDefense Equipment/ProductsDJIADow Jones Industrial AverageFDXFedExgeneral newsGuided MissilesIndustrial Goodsindustrial newsLMTLockheedLockheed MartinMilitary AircraftMNTSMomentusnightNorthrop GrummanpartsplanningpoliticalPolitical/General NewsproductsS&P 500 IndexsatellitessinSpace explorationSpace Exploration/TravelSpace VehiclesSPXtravel [guid] => https://mynewspaper.xyz/space/2021/09/07/lockheed-northrop-grumman-invest-in-space-startup-orbit-fab/ [description] => Text size A Lockheed transport plane taking off from southern England last month. Justin Tallis/AFP... [content] => Array ( [encoded] =>

Text size

.

) [summary] => Text size A Lockheed transport plane taking off from southern England last month. Justin Tallis/AFP... [atom_content] =>

Text size

.

[date_timestamp] => 1631048913 ) [5] => Array ( [title] => Random Massacre: The Story of the Family Killed in Lakeland, Florida by an Unknown Man | Univision News Events [link] => https://mynewspaper.xyz/international/2021/09/07/random-massacre-the-story-of-the-family-killed-in-lakeland-florida-by-an-unknown-man-univision-news-events/ [dc] => Array ( [creator] => Betty Foster ) [pubdate] => Tue, 07 Sep 2021 20:25:46 +0000 [category] => InternationaleventsfamilyFloridakilledLakelandmanmassacrenewsRandomstoryUnivisionunknown [guid] => https://mynewspaper.xyz/international/2021/09/07/random-massacre-the-story-of-the-family-killed-in-lakeland-florida-by-an-unknown-man-univision-news-events/ [description] => In the early hours of Sunday, a man entered the home of an unfamiliar family... [content] => Array ( [encoded] =>

In the early hours of Sunday, a man entered the home of an unfamiliar family in Lakeland, Florida, and perpetrated a massacre in which four people died, including a baby of only three months while his mother, also murdered, held him in her arms. Only an 11-year-old girl managed to survive, who is in critical but stable condition.

The police arrived on the scene and managed to injure the attacker, who finally surrendered and is now in prison, without bail, charged with four counts of first-degree murder, in addition to other crimes.

The only victim identified so far has been Justice Gleason, a 40-year-old man, that hours before he was quietly mowing the lawn in the backyard of his house, when he saw a stranger approaching who was hanging around the neighborhood and who stopped his vehicle to tell him that God had asked him to stop there because a girl named Amber, supposedly Gleason’s daughter was going to commit suicide.

Another person, whose identity has not been released but ended up being another of the victims, told the stranger that this was not true, that no Amber lived there and that he would call the police if she did not leave. The agents came, but the stranger had already left. They could not imagine that this man would return to the same house at dawn to kill them all, including the dog.

“Like a giant child in the body of a man”

Miranda Watson, Justice Gleason’s ex-partner and who shares a four-year-old daughter, remembers him as a helpful and laid-back person. “He always had a smile on his face,” he said.

At the time, when they met, he helped her out of a complicated relationship. And he was always an incredible father to his daughter, who now will not have him in her life, he lamented on Facebook.

Gleason loved to fish, spend time with his children, and listen to music, especially Lynyrd Skynyrd and Chris Stapleton. He loved to sing and play the guitar and taught his children to play, Miranda said, according to a newspaper report. The Washington Post.

On a trip to the beach together, Watson recalled how Glesason spent a lot of time hunting for shells with the children and drew a tattoo on one of them with a marker on one arm at the hotel.

“He was like a giant child in the body of a man,” he recalled.

Although the police have not identified the rest of the victims of this massacre, on Miranda Watson’s own Facebook page, as well as in other posts and accounts of the social network, it can be known that Justice Gleason had started a new family with Theresa Lanham, with whom she had just had a baby, little Jody, who was born this May. He was barely three months old.

The couple lived in the house of the Theresa’s mother, Catherine Delgado, who also resided there, in the back. The 11-year-old girl who survived the massacre was a daughter of Gleason from a previous relationship.

The perpetrator of the massacre was identified as Bryan Riley, a 33-year-old former marine who served missions in Iraq and Afghanistan. The man said he was high on methamphetamine.

This Monday, Riley had his first appearance in court, where he was charged with first degree murder, attempted first degree murder, attempted first degree murder of a law enforcement officer, armed robbery with assault. , arson, cruelty to an animal and shooting in an inhabited home. He was jailed without bail while the trial takes place.

According to the legal document, Riley’s fiancee, who is collaborating with authorities, said that he had never been violent but suffered from post-traumatic stress disorder And that he had started acting strange since he came back from working security at an Orlando church last week.

In questioning with the police, Riley confessed to shooting and murdering several people. According to him, he did it because the voices in his head were asking him to.

When asked why he shot the baby, the man replied: “Because I am a sick man. I want to confess everything and be sent to prison.”

According to the case documents, Riley said the victims had asked him to stop until the last minute, but he kept shooting.

Riley confirmed to police that he did not know the victims. It was a random massacre.

) [summary] => In the early hours of Sunday, a man entered the home of an unfamiliar family... [atom_content] =>

In the early hours of Sunday, a man entered the home of an unfamiliar family in Lakeland, Florida, and perpetrated a massacre in which four people died, including a baby of only three months while his mother, also murdered, held him in her arms. Only an 11-year-old girl managed to survive, who is in critical but stable condition.

The police arrived on the scene and managed to injure the attacker, who finally surrendered and is now in prison, without bail, charged with four counts of first-degree murder, in addition to other crimes.

The only victim identified so far has been Justice Gleason, a 40-year-old man, that hours before he was quietly mowing the lawn in the backyard of his house, when he saw a stranger approaching who was hanging around the neighborhood and who stopped his vehicle to tell him that God had asked him to stop there because a girl named Amber, supposedly Gleason’s daughter was going to commit suicide.

Another person, whose identity has not been released but ended up being another of the victims, told the stranger that this was not true, that no Amber lived there and that he would call the police if she did not leave. The agents came, but the stranger had already left. They could not imagine that this man would return to the same house at dawn to kill them all, including the dog.

“Like a giant child in the body of a man”

Miranda Watson, Justice Gleason’s ex-partner and who shares a four-year-old daughter, remembers him as a helpful and laid-back person. “He always had a smile on his face,” he said.

At the time, when they met, he helped her out of a complicated relationship. And he was always an incredible father to his daughter, who now will not have him in her life, he lamented on Facebook.

Gleason loved to fish, spend time with his children, and listen to music, especially Lynyrd Skynyrd and Chris Stapleton. He loved to sing and play the guitar and taught his children to play, Miranda said, according to a newspaper report. The Washington Post.

On a trip to the beach together, Watson recalled how Glesason spent a lot of time hunting for shells with the children and drew a tattoo on one of them with a marker on one arm at the hotel.

“He was like a giant child in the body of a man,” he recalled.

Although the police have not identified the rest of the victims of this massacre, on Miranda Watson’s own Facebook page, as well as in other posts and accounts of the social network, it can be known that Justice Gleason had started a new family with Theresa Lanham, with whom she had just had a baby, little Jody, who was born this May. He was barely three months old.

The couple lived in the house of the Theresa’s mother, Catherine Delgado, who also resided there, in the back. The 11-year-old girl who survived the massacre was a daughter of Gleason from a previous relationship.

The perpetrator of the massacre was identified as Bryan Riley, a 33-year-old former marine who served missions in Iraq and Afghanistan. The man said he was high on methamphetamine.

This Monday, Riley had his first appearance in court, where he was charged with first degree murder, attempted first degree murder, attempted first degree murder of a law enforcement officer, armed robbery with assault. , arson, cruelty to an animal and shooting in an inhabited home. He was jailed without bail while the trial takes place.

According to the legal document, Riley’s fiancee, who is collaborating with authorities, said that he had never been violent but suffered from post-traumatic stress disorder And that he had started acting strange since he came back from working security at an Orlando church last week.

In questioning with the police, Riley confessed to shooting and murdering several people. According to him, he did it because the voices in his head were asking him to.

When asked why he shot the baby, the man replied: “Because I am a sick man. I want to confess everything and be sent to prison.”

According to the case documents, Riley said the victims had asked him to stop until the last minute, but he kept shooting.

Riley confirmed to police that he did not know the victims. It was a random massacre.

[date_timestamp] => 1631046346 ) [6] => Array ( [title] => NASA chief on Blue Origin protest: ?They have every right? to sue [link] => https://mynewspaper.xyz/space/2021/09/07/nasa-chief-on-blue-origin-protest-they-have-every-right-to-sue/ [dc] => Array ( [creator] => Betty Foster ) [pubdate] => Tue, 07 Sep 2021 20:07:19 +0000 [category] => Space [guid] => https://mynewspaper.xyz/space/2021/09/07/nasa-chief-on-blue-origin-protest-they-have-every-right-to-sue/ [description] => Enlarge / Former Florida Senator Bill Nelson was confirmed as NASA administrator earlier this year.... [content] => Array ( [encoded] =>
Enlarge / Former Florida Senator Bill Nelson was confirmed as NASA administrator earlier this year.

NASA

NASA Administrator Bill Nelson said he is not upset with Blue Origin for pursuing all legal avenues after losing a space agency contract for a lunar lander.

“We are a nation of laws and as such we want to follow the law,” Nelson said in response to a question from Ars. “They have a right of appeal, and they have chosen to exercise that right. They have every right under the law to do that, and there will be a determination. And then we will move on.”

Nearly five months have passed since NASA selected SpaceX to build a Human Landing System for its lunar program, named Artemis. After the decision both Blue Origin and another bidder, Dynetics, protested the award to the US Government Accountability Office, and in late July the protest was rejected.

That was enough for Dynetics, but Blue Origin has since pressed ahead with both a public relations campaign?designating SpaceX’s proposed lander as “immensely complex and high risk” as well as further legal action. In August, Blue Origin sued NASA and the federal government in the US Court of Federal Claims, and this pending legal activity has iced efforts by NASA and SpaceX to move ahead with a lunar lander.

Blue Origin’s actions have fostered a considerable amount of enmity among some in the space community, but that has not deterred the rocket company owned by Jeff Bezos from pursuing a scorched-Earth campaign. But publicly, at least, Nelson is content to let Blue Origin have its day in court.

Nelson made his comments last week during a visit to NASA’s Johnson Space Center in Houston, along with Deputy Administrator Pam Melroy. Nelson said the agency’s decision to select a single lunar lander bid was justified because Congress provided far less than NASA said was necessary to award multiple contracts for the lunar mission.

“NASA only had enough money to make a selection for the first competition, which was a demonstration lander on the Moon,” he said. “And NASA made that choice of one of the competitors. But what Pam and I have said is that we want a competition for all the other landers that are going to land on the Moon, what we call sustained landing over a decade, or a decade and a half period. And so that’s where we’ve got to get additional resources to get that competition going.”

So far, NASA has been unsuccessful in securing this extra funding, however. There are potentially three budgetary avenues for doing so, but none are close to a sure bet. Earlier this year, Senate Commerce Committee Chairwoman Maria Cantwell, D-Wash., where Blue Origin is based, added $10 billion for a second lunar lander as part of a NASA authorization bill. But this seems to be a nonstarter in the US House.

A second option is through the 2022 budget process. The US Senate has not yet released a proposed budget for NASA next year. In its budget, the US House did not provide funds for a second lander. Anything remains possible during the fluid budget process, however, which will play out over the next several months.

Finally, Nelson has suggested that $10 billion for a second Human Landing System be included in a $4.5 trillion infrastructure bill. However, in a draft bill outlining potential projects, the US House of Representatives left out extra funding for the Human Landing System.

) [summary] => Enlarge / Former Florida Senator Bill Nelson was confirmed as NASA administrator earlier this year.... [atom_content] =>
Enlarge / Former Florida Senator Bill Nelson was confirmed as NASA administrator earlier this year.

NASA

NASA Administrator Bill Nelson said he is not upset with Blue Origin for pursuing all legal avenues after losing a space agency contract for a lunar lander.

“We are a nation of laws and as such we want to follow the law,” Nelson said in response to a question from Ars. “They have a right of appeal, and they have chosen to exercise that right. They have every right under the law to do that, and there will be a determination. And then we will move on.”

Nearly five months have passed since NASA selected SpaceX to build a Human Landing System for its lunar program, named Artemis. After the decision both Blue Origin and another bidder, Dynetics, protested the award to the US Government Accountability Office, and in late July the protest was rejected.

That was enough for Dynetics, but Blue Origin has since pressed ahead with both a public relations campaign?designating SpaceX’s proposed lander as “immensely complex and high risk” as well as further legal action. In August, Blue Origin sued NASA and the federal government in the US Court of Federal Claims, and this pending legal activity has iced efforts by NASA and SpaceX to move ahead with a lunar lander.

Blue Origin’s actions have fostered a considerable amount of enmity among some in the space community, but that has not deterred the rocket company owned by Jeff Bezos from pursuing a scorched-Earth campaign. But publicly, at least, Nelson is content to let Blue Origin have its day in court.

Nelson made his comments last week during a visit to NASA’s Johnson Space Center in Houston, along with Deputy Administrator Pam Melroy. Nelson said the agency’s decision to select a single lunar lander bid was justified because Congress provided far less than NASA said was necessary to award multiple contracts for the lunar mission.

“NASA only had enough money to make a selection for the first competition, which was a demonstration lander on the Moon,” he said. “And NASA made that choice of one of the competitors. But what Pam and I have said is that we want a competition for all the other landers that are going to land on the Moon, what we call sustained landing over a decade, or a decade and a half period. And so that’s where we’ve got to get additional resources to get that competition going.”

So far, NASA has been unsuccessful in securing this extra funding, however. There are potentially three budgetary avenues for doing so, but none are close to a sure bet. Earlier this year, Senate Commerce Committee Chairwoman Maria Cantwell, D-Wash., where Blue Origin is based, added $10 billion for a second lunar lander as part of a NASA authorization bill. But this seems to be a nonstarter in the US House.

A second option is through the 2022 budget process. The US Senate has not yet released a proposed budget for NASA next year. In its budget, the US House did not provide funds for a second lander. Anything remains possible during the fluid budget process, however, which will play out over the next several months.

Finally, Nelson has suggested that $10 billion for a second Human Landing System be included in a $4.5 trillion infrastructure bill. However, in a draft bill outlining potential projects, the US House of Representatives left out extra funding for the Human Landing System.

[date_timestamp] => 1631045239 ) [7] => Array ( [title] => An Australian evolutionary arms race ? NovLink [link] => https://mynewspaper.xyz/health-science-news/2021/09/07/an-australian-evolutionary-arms-race-novlink/ [dc] => Array ( [creator] => Betty Foster ) [pubdate] => Tue, 07 Sep 2021 19:18:19 +0000 [category] => Health & Science News [guid] => https://mynewspaper.xyz/health-science-news/2021/09/07/an-australian-evolutionary-arms-race-novlink/ [description] => Journal Reference: Nicholas J. Youngman, Joshua Llinas, Bryan G. Fry. Evidence for Resistance to Coagulotoxic... [content] => Array ( [encoded] =>

Journal Reference:

  1. Nicholas J. Youngman, Joshua Llinas, Bryan G. Fry. Evidence for Resistance to Coagulotoxic Effects of Australian Elapid Snake Venoms by Sympatric Prey (Blue Tongue Skinks) but Not by Predators (Monitor Lizards). Toxins, 2021; 13 (9): 590 DOI: 10.3390/toxins13090590

The surprising finding was revealed after University of Queensland scientists compared the effects of various reptile blood plasmas when exposed to the venom.

UQ PhD candidate Nicholas Youngman said mammalian ? and particularly, human ? reactions had been heavily investigated, but very little was known about snake venom effects on other reptiles.

?It was a shock discovering that the eastern blue-tongue, along with the shingleback, showed resistance specifically to red black snake venom,? Mr Youngman said.

?Since their resistance was so specific to only this snake species, it seems these lizards have evolved a special plasma component ? known as a serum factor ? in their blood.

?This prevents specific toxins in red-bellied black snake venom from clotting the lizards? plasma, which would lead to a rapid death in most other animals.

?This resistance doesn?t mean they?re completely immune, but it would give them a greater chance of survival, allowing them to escape or fight back.

?Much like how a COVID-19 vaccine doesn?t mean you don?t get sick at all, it just means you are less likely to die.?

The research team analysed the effects of seven different Australian snake venoms on the plasma of two species of blue-tongued skinks and three species of monitor lizards that would interact with these snakes in the wild.

Associate Professor Bryan Fry, who heads UQ?s Venom Evolution Lab, said the results also revealed that monitor lizards ? or goannas ? were not resistant to the snake venoms.

?You?d think that a goanna would be significantly resistant to the venom of any snake it was hunting and eating, but that isn?t the case,? Dr Fry said.

?Snake venom can only cause harm to goannas if it?s injected into its body by the snake?s fangs, it can?t be absorbed directly through the skin.

?Goannas are heavily armoured and their scales act like medieval chain mail, with each containing a piece of bone, meaning venomous snakes? fangs struggle to pierce this armour.

?So ? unlike the slow, vulnerable blue-tongue lizard ? there?s no pressure for goannas to evolve resistance; natural selection has invested in their armour and it?s clearly working for them.

?These two divergent forms of resistance are fascinating examples of evolutionary novelty.?

Blue-tongue vs red-bellied black: An Australian evolutionary arms race

) [summary] => Journal Reference: Nicholas J. Youngman, Joshua Llinas, Bryan G. Fry. Evidence for Resistance to Coagulotoxic... [atom_content] =>

Journal Reference:

  1. Nicholas J. Youngman, Joshua Llinas, Bryan G. Fry. Evidence for Resistance to Coagulotoxic Effects of Australian Elapid Snake Venoms by Sympatric Prey (Blue Tongue Skinks) but Not by Predators (Monitor Lizards). Toxins, 2021; 13 (9): 590 DOI: 10.3390/toxins13090590

The surprising finding was revealed after University of Queensland scientists compared the effects of various reptile blood plasmas when exposed to the venom.

UQ PhD candidate Nicholas Youngman said mammalian ? and particularly, human ? reactions had been heavily investigated, but very little was known about snake venom effects on other reptiles.

?It was a shock discovering that the eastern blue-tongue, along with the shingleback, showed resistance specifically to red black snake venom,? Mr Youngman said.

?Since their resistance was so specific to only this snake species, it seems these lizards have evolved a special plasma component ? known as a serum factor ? in their blood.

?This prevents specific toxins in red-bellied black snake venom from clotting the lizards? plasma, which would lead to a rapid death in most other animals.

?This resistance doesn?t mean they?re completely immune, but it would give them a greater chance of survival, allowing them to escape or fight back.

?Much like how a COVID-19 vaccine doesn?t mean you don?t get sick at all, it just means you are less likely to die.?

The research team analysed the effects of seven different Australian snake venoms on the plasma of two species of blue-tongued skinks and three species of monitor lizards that would interact with these snakes in the wild.

Associate Professor Bryan Fry, who heads UQ?s Venom Evolution Lab, said the results also revealed that monitor lizards ? or goannas ? were not resistant to the snake venoms.

?You?d think that a goanna would be significantly resistant to the venom of any snake it was hunting and eating, but that isn?t the case,? Dr Fry said.

?Snake venom can only cause harm to goannas if it?s injected into its body by the snake?s fangs, it can?t be absorbed directly through the skin.

?Goannas are heavily armoured and their scales act like medieval chain mail, with each containing a piece of bone, meaning venomous snakes? fangs struggle to pierce this armour.

?So ? unlike the slow, vulnerable blue-tongue lizard ? there?s no pressure for goannas to evolve resistance; natural selection has invested in their armour and it?s clearly working for them.

?These two divergent forms of resistance are fascinating examples of evolutionary novelty.?

Blue-tongue vs red-bellied black: An Australian evolutionary arms race

[date_timestamp] => 1631042299 ) [8] => Array ( [title] => Shape Memory Alloys for Aircraft Landing Noise Reduction [link] => https://mynewspaper.xyz/space/2021/09/07/shape-memory-alloys-for-aircraft-landing-noise-reduction/ [dc] => Array ( [creator] => Betty Foster ) [pubdate] => Tue, 07 Sep 2021 19:06:18 +0000 [category] => Spaceaircraftpollutionshape memory alloys [guid] => https://mynewspaper.xyz/space/2021/09/07/shape-memory-alloys-for-aircraft-landing-noise-reduction/ [description] => As air traffic is projected to increase dramatically over the next decade, reducing noise pollution... [content] => Array ( [encoded] =>

As air traffic is projected to increase dramatically over the next decade, reducing noise pollution becomes an even more necessary and demanding challenge. Decades of research have been dedicated to reducing the noise of an aircraft?s engine but have tended to neglect the noise caused by the airframe during landing. Recent research published in Journal of Aircraft from Texas A&M University has suggested that shape memory alloys may be the key to solving noise pollution during landing without degrading the aerodynamic properties of the airframe itself.

Image Credit: frank_peters/Shutterstock.com

Aero-Engines and Sound Pollution

Though the mechanics and composition of an aero-engine are complex, creating propulsion is simple. Cold air enters via the engine?s intake and is then pressurized through a compressor, increasing its temperature to make it combustible. Then, the air is mixed with fuel and ignited, further increasing its internal energy before being expanded again through the engine?s turbine, leaving through the outlet. The energy difference is caused by compression, while thrust is generated by combustion.

The three main types of aero-engines (Turbofan, Turboprop, and Turbojet) all share this basic premise, though they can differ in intake methods, fuel efficiency, and thrust generation. Some engines also have additional components like mixers, which combine cold intake air with hot ignited air at the exhaust, increasing efficiency.

Mixing air at the exhaust, adding additional components such as active noise control (ANC), and even the engine’s geometry are all methods of reducing the noise created by aircraft engines. These methods, however, cannot reduce noise entirely and do little to reduce noise at all during an aircraft’s landing phase.

The Problem with Landing

As aero-engines are typically idle or producing very low thrust during landing, the engine itself no longer becomes the primary noise source, giving way to airframe noise. For decades, engine-related noise pollution was considered a priority over airframe noise. As a result, little research had been done until engine noise had been reduced to a level equal to airframe noise.

The two most significant problem areas for airframe noise are the wings and the landing gear. As landing gear is lowered from the plane during landing, the slats (leading edge) and flaps (trailing edge) of the wing extend to ease landing by providing equal lift at lower speeds. These changes to the aircraft profile alter the airflow around it. Air enters the vacuum-like space created by the extended flaps and slats, forming turbulent eddies, which then resonates and makes an unpleasant high-pitched noise.

Researchers are met with a difficult decision when considering the problem of airframe noise. Aeronautical engineering is an intricate science, and small changes to an airframe’s characteristics can dramatically affect its efficiency. Although tackling airframe noise is necessary, minimal changes must be made to the airframe’s aerodynamic properties.

Shape Memory Alloys to Reduce Airframe Noise

One potential method proposed to reduce airframe noise pollution is to insert an elongated ‘S?-shaped filler inside the space created by the extended leading edge. This membrane, researched by Dr. Darren Hartl and various NASA collaborators, would effectively disable the circulation of the turbulent air, stopping the resonance and, consequently, the unpleasant sound it produces. However, subsequent research has found that all proposed materials could not form the S-shape during landing, then return to their original shape inside the retracted slat to a satisfactory degree.

The material used had to be malleable to sufficiently form the S-shape on landing while still resisting high stresses and cycle fatigue. Hartl’s research began to analyze using a shape memory alloy for the filler to solve these issues.

Using a shape memory alloy would mean that the alloy could change form during each landing. The airflow itself would change the shape of the alloy, optimizing its shape to reduce noise cancellation.

Recent Developments in Shape Memory Alloys and Their Applications in Aerospace Engineering

Shape memory alloys refer to materials that can be deformed plastically, then return to their original shape when activated by heat; the atomic structure remains similar to its original shape. en if the structure undergoes shear forces, the atoms are connected in the same way as in their high-temperature phase. When heated, these connections straighten like in their high-temperature phase, returning the component to its primary form.

This similarity in atomic structure is unique to shape memory alloys compared to other conventional metals. If these metals undergo enough force, they will undergo slip, where a section of an atomic crystal deforms more than the rest of the crystal. Deformation due to slip does not reverse under heat, as it does in shape memory alloys.

airplane wheel

Image Credit: Yuri Kabantsev/Shutterstock.com

Nitinol, a Nickel-Titanium shape memory alloy, is the most common shape memory alloy and the most useful in aerospace engineering. The most well-known application for Nitinol is its use on the curiosity rover. Initially, the thin aluminum wheels of the Mars rover would become damaged from the rough terrain of Mars. To solve this, NASA replaced Curiosity’s wheels with a wire-mesh wheel of Nitinol. Its superelastic properties meant the wheels could deform to Mars’ rough terrain with no permanent damage or deformation.

Other applications for shape memory alloys have been proposed for fixed-wing aircraft. Nitinol has been investigated as a method of twisting aircraft wings via its shape recovery characteristics. Wing twist, used to alter lift distribution across a wing, could be activated by heating Nitinol ‘Torque Tubes’. Unfortunately, current technology can not provide enough force on a full-scale wing.

Disadvantages of Shape Memory Alloys and Their Future in Aerospace

The most glaring disadvantage of shape memory alloys is the difficulty in dynamically modeling their behavior; as air flows across the filler, its shape changes. The shape of the airflow is altered, creating an inconsistent model that is hard to analyze entirely, even with fluid dynamics modeling.

As shape memory alloys are new material, there is relatively little research on them. Still, as more explorations take place, attributes can be improved. Perhaps in the future, the strength of Nitinol ‘Torque Tubes’ can be increased to the point where they can be applied in the aerospace industry.

The current S-shaped filler design is implementable, but bulky and potentially heavy. Increasing the weight of an aircraft is highly undesirable, as it means payload must be reduced to meet its Maximum Take-Off Weight (MTOW). Hartl has suggested future research may result in smaller, different shapes that are capable of noise cancellation.

References and Further Reading

Arena, G., Groh, R., Pirrera, A., Turner, T., Scholten, W. and Hartl, D., (2021) Design of Shape-Adaptive Deployable Slat-Cove Filler for Airframe Noise Reduction. Journal of Aircraft, pp.1-17. Available at: http://dx.doi.org/10.2514/1.C036070

engineerguy, (2018) Nitinol: The Shape Memory Effect and Superelasticity. Available at: https://www.youtube.com/watch?v=wI-qAxKJoSU

Hartl, D. and Lagoudas, D., (2007) Aerospace applications of shape memory alloys. Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 221(4), pp.535-552. Available at: https://doi.org/10.1243/09544100JAERO211

Kang, G. and Song, D., (2015) Review on structural fatigue of NiTi shape memory alloys: Pure mechanical and thermo-mechanical ones. Theoretical and Applied Mechanics Letters, 5(6), pp.245-254. Available at: https://doi.org/10.1016/j.taml.2015.11.004

L. Lasagna, P., G. Mackall, K., W. Burcham, F. and W. Putnam, T., (1980) Landing Approach Airframe Noise Measurements and Analysis. [PDF] Edwards, California: NASA. Available at: https://www.nasa.gov/centers/dryden/pdf/87919main_H-1075.pdf

Real Engineering, (2018) How NASA Reinvented The Wheel – Shape Memory Alloys. Available at: https://www.youtube.com/watch?v=2lv6Vs12jLc

Sadeghian, M. and Gorji Bandpy, M., (2020) Technologies for Aircraft Noise Reduction: A Review. Journal of  Aeronautics & Aerospace Engineering, 9(219). Available at: https://www.longdom.org/open-access/technologies-for-aircraft-noise-reduction-a-review-47567.html

ScienceDaily. (2021) Shape-memory alloys might help airplanes land without a peep. [online] Available at: https://www.sciencedaily.com/releases/2021/07/210712183327.htm

Disclaimer: The views expressed here are those of the author expressed in their private capacity and do not necessarily represent the views of AZoM.com Limited T/A AZoNetwork the owner and operator of this website. This disclaimer forms part of the Terms and conditions of use of this website.

.

) [summary] => As air traffic is projected to increase dramatically over the next decade, reducing noise pollution... [atom_content] =>

As air traffic is projected to increase dramatically over the next decade, reducing noise pollution becomes an even more necessary and demanding challenge. Decades of research have been dedicated to reducing the noise of an aircraft?s engine but have tended to neglect the noise caused by the airframe during landing. Recent research published in Journal of Aircraft from Texas A&M University has suggested that shape memory alloys may be the key to solving noise pollution during landing without degrading the aerodynamic properties of the airframe itself.

Image Credit: frank_peters/Shutterstock.com

Aero-Engines and Sound Pollution

Though the mechanics and composition of an aero-engine are complex, creating propulsion is simple. Cold air enters via the engine?s intake and is then pressurized through a compressor, increasing its temperature to make it combustible. Then, the air is mixed with fuel and ignited, further increasing its internal energy before being expanded again through the engine?s turbine, leaving through the outlet. The energy difference is caused by compression, while thrust is generated by combustion.

The three main types of aero-engines (Turbofan, Turboprop, and Turbojet) all share this basic premise, though they can differ in intake methods, fuel efficiency, and thrust generation. Some engines also have additional components like mixers, which combine cold intake air with hot ignited air at the exhaust, increasing efficiency.

Mixing air at the exhaust, adding additional components such as active noise control (ANC), and even the engine’s geometry are all methods of reducing the noise created by aircraft engines. These methods, however, cannot reduce noise entirely and do little to reduce noise at all during an aircraft’s landing phase.

The Problem with Landing

As aero-engines are typically idle or producing very low thrust during landing, the engine itself no longer becomes the primary noise source, giving way to airframe noise. For decades, engine-related noise pollution was considered a priority over airframe noise. As a result, little research had been done until engine noise had been reduced to a level equal to airframe noise.

The two most significant problem areas for airframe noise are the wings and the landing gear. As landing gear is lowered from the plane during landing, the slats (leading edge) and flaps (trailing edge) of the wing extend to ease landing by providing equal lift at lower speeds. These changes to the aircraft profile alter the airflow around it. Air enters the vacuum-like space created by the extended flaps and slats, forming turbulent eddies, which then resonates and makes an unpleasant high-pitched noise.

Researchers are met with a difficult decision when considering the problem of airframe noise. Aeronautical engineering is an intricate science, and small changes to an airframe’s characteristics can dramatically affect its efficiency. Although tackling airframe noise is necessary, minimal changes must be made to the airframe’s aerodynamic properties.

Shape Memory Alloys to Reduce Airframe Noise

One potential method proposed to reduce airframe noise pollution is to insert an elongated ‘S?-shaped filler inside the space created by the extended leading edge. This membrane, researched by Dr. Darren Hartl and various NASA collaborators, would effectively disable the circulation of the turbulent air, stopping the resonance and, consequently, the unpleasant sound it produces. However, subsequent research has found that all proposed materials could not form the S-shape during landing, then return to their original shape inside the retracted slat to a satisfactory degree.

The material used had to be malleable to sufficiently form the S-shape on landing while still resisting high stresses and cycle fatigue. Hartl’s research began to analyze using a shape memory alloy for the filler to solve these issues.

Using a shape memory alloy would mean that the alloy could change form during each landing. The airflow itself would change the shape of the alloy, optimizing its shape to reduce noise cancellation.

Recent Developments in Shape Memory Alloys and Their Applications in Aerospace Engineering

Shape memory alloys refer to materials that can be deformed plastically, then return to their original shape when activated by heat; the atomic structure remains similar to its original shape. en if the structure undergoes shear forces, the atoms are connected in the same way as in their high-temperature phase. When heated, these connections straighten like in their high-temperature phase, returning the component to its primary form.

This similarity in atomic structure is unique to shape memory alloys compared to other conventional metals. If these metals undergo enough force, they will undergo slip, where a section of an atomic crystal deforms more than the rest of the crystal. Deformation due to slip does not reverse under heat, as it does in shape memory alloys.

airplane wheel

Image Credit: Yuri Kabantsev/Shutterstock.com

Nitinol, a Nickel-Titanium shape memory alloy, is the most common shape memory alloy and the most useful in aerospace engineering. The most well-known application for Nitinol is its use on the curiosity rover. Initially, the thin aluminum wheels of the Mars rover would become damaged from the rough terrain of Mars. To solve this, NASA replaced Curiosity’s wheels with a wire-mesh wheel of Nitinol. Its superelastic properties meant the wheels could deform to Mars’ rough terrain with no permanent damage or deformation.

Other applications for shape memory alloys have been proposed for fixed-wing aircraft. Nitinol has been investigated as a method of twisting aircraft wings via its shape recovery characteristics. Wing twist, used to alter lift distribution across a wing, could be activated by heating Nitinol ‘Torque Tubes’. Unfortunately, current technology can not provide enough force on a full-scale wing.

Disadvantages of Shape Memory Alloys and Their Future in Aerospace

The most glaring disadvantage of shape memory alloys is the difficulty in dynamically modeling their behavior; as air flows across the filler, its shape changes. The shape of the airflow is altered, creating an inconsistent model that is hard to analyze entirely, even with fluid dynamics modeling.

As shape memory alloys are new material, there is relatively little research on them. Still, as more explorations take place, attributes can be improved. Perhaps in the future, the strength of Nitinol ‘Torque Tubes’ can be increased to the point where they can be applied in the aerospace industry.

The current S-shaped filler design is implementable, but bulky and potentially heavy. Increasing the weight of an aircraft is highly undesirable, as it means payload must be reduced to meet its Maximum Take-Off Weight (MTOW). Hartl has suggested future research may result in smaller, different shapes that are capable of noise cancellation.

References and Further Reading

Arena, G., Groh, R., Pirrera, A., Turner, T., Scholten, W. and Hartl, D., (2021) Design of Shape-Adaptive Deployable Slat-Cove Filler for Airframe Noise Reduction. Journal of Aircraft, pp.1-17. Available at: http://dx.doi.org/10.2514/1.C036070

engineerguy, (2018) Nitinol: The Shape Memory Effect and Superelasticity. Available at: https://www.youtube.com/watch?v=wI-qAxKJoSU

Hartl, D. and Lagoudas, D., (2007) Aerospace applications of shape memory alloys. Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 221(4), pp.535-552. Available at: https://doi.org/10.1243/09544100JAERO211

Kang, G. and Song, D., (2015) Review on structural fatigue of NiTi shape memory alloys: Pure mechanical and thermo-mechanical ones. Theoretical and Applied Mechanics Letters, 5(6), pp.245-254. Available at: https://doi.org/10.1016/j.taml.2015.11.004

L. Lasagna, P., G. Mackall, K., W. Burcham, F. and W. Putnam, T., (1980) Landing Approach Airframe Noise Measurements and Analysis. [PDF] Edwards, California: NASA. Available at: https://www.nasa.gov/centers/dryden/pdf/87919main_H-1075.pdf

Real Engineering, (2018) How NASA Reinvented The Wheel – Shape Memory Alloys. Available at: https://www.youtube.com/watch?v=2lv6Vs12jLc

Sadeghian, M. and Gorji Bandpy, M., (2020) Technologies for Aircraft Noise Reduction: A Review. Journal of  Aeronautics & Aerospace Engineering, 9(219). Available at: https://www.longdom.org/open-access/technologies-for-aircraft-noise-reduction-a-review-47567.html

ScienceDaily. (2021) Shape-memory alloys might help airplanes land without a peep. [online] Available at: https://www.sciencedaily.com/releases/2021/07/210712183327.htm

Disclaimer: The views expressed here are those of the author expressed in their private capacity and do not necessarily represent the views of AZoM.com Limited T/A AZoNetwork the owner and operator of this website. This disclaimer forms part of the Terms and conditions of use of this website.

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[date_timestamp] => 1631041578 ) [9] => Array ( [title] => WORLD duel: ?Only you and the AfD believe that,? accuses Brinkhaus Wagenknecht [link] => https://mynewspaper.xyz/international/2021/09/07/world-duel-only-you-and-the-afd-believe-that-accuses-brinkhaus-wagenknecht/ [dc] => Array ( [creator] => Betty Foster ) [pubdate] => Tue, 07 Sep 2021 18:24:06 +0000 [category] => InternationalaccusesAfDAlliance 90 / The GreensAmazon MusicApple PodcastBrinkhausBrinkhaus WagenknechtBundestagBundestag electionscareerCDUCrolly-HanneloreduelgreenOlaf ScholzRalphRalph BrinkhausRobin AlexanderSaharaSahra WagenknechtSPDtexttospeechThe leftWagenknechtworldWORLD duel Brinkhaus [guid] => https://mynewspaper.xyz/international/2021/09/07/world-duel-only-you-and-the-afd-believe-that-accuses-brinkhaus-wagenknecht/ [description] => Bundestag election WORLD duel “Only you and the AfD believe that,” accuses Brinkhaus Wagenknecht Status:... [content] => Array ( [encoded] =>
Bundestag election WORLD duel

“Only you and the AfD believe that,” accuses Brinkhaus Wagenknecht

WORLD duel – Ralph Brinkhaus against Sahra Wagenknecht

19 days until the federal election. In the WELT duel today, Sahra Wagenknecht, NRW’s top candidate for the federal election, and Ralph Brinkhaus, parliamentary group leader of the CDU / CSU, will answer questions from Tatjana Ohm and Robin Alexander.

Here you will find content from Podigee

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In the WELT duel, Union faction leader Ralph Brinkhaus and Sahra Wagenknecht exchange blows about climate protection and wages. The CDU politician thinks: The left portrays the situation in Germany as worse than ?Dante’s Inferno?.

Ex-Left parliamentary group leader Sahra Wagenknecht relies on her party’s participation in government on the side of the SPD. Wagenknecht, who wants to defend her parliamentary mandate as the top candidate in North Rhine-Westphalia, said at the WELT duel with Union parliamentary group leader Ralph Brinkhaus (CDU): “I hope that Olaf Scholz has the backbone to use other majorities.”

At the same time, she attacked the Greens in the dispute on the news channel WELT, whose coalition participation would be necessary for a red-green-red parliamentary majority, on the subject of CO2-Pricing sharp. The Greens want to accelerate the price increase and are targeting 60 euros per ton.

“It’s total hypocrisy”

?This is not a sensible climate policy to reach into the pockets of normal people and middle-class families. And it is also total hypocrisy to pretend that a normal wage earner would then buy the smart Tesla or switch to non-existent buses and trains. ”

Good mood, tough tone: Union parliamentary group leader Ralph Brinkhaus (CDU) and the Left MP Sahra Wagenknecht

Good mood, tough tone: Union parliamentary group leader Ralph Brinkhaus (CDU) and the Left MP Sahra Wagenknecht

Source: WORLD / Claudius Pflug

A black-green coalition, according to Wagenknecht, would further exacerbate social inequality. “The CO2-Price will then be increased even further, and there will be tax free gifts for the wealthy. And because that has to be recovered, you will probably retire at 68. “She called the pricing the” completely wrong lever “. ?The bad thing is that the CDU and the Greens are in agreement. High CO2-Prices are consumption taxes. ?So the Union is planning a tax increase through the back door. ?We wouldn’t go along with that.? Instead, companies would have to be forced to use other methods of production.

“It is not possible for people to associate the issue of social justice with us”

Source: WORLD / Claudius Pflug

Brinkhaus countered Wagenknecht on WELT television that she represented ?one-to-one AfD positions? on climate policy. And stressed that the fight against climate change without CO2-Pricing was not to be won. “You and the AfD are the only ones who believe that.”

also read

The chairman of the CDU / CSU parliamentary group Ralph Brinkhaus in an interview with Jacques Schuster and Thomas Vitzthum.  (Photo: Mr. Binkhaus is here in the artwork of the artist: Hinnerk Wehberg: " The invading Spree water")

He also vehemently rejected Wagenknecht’s criticism that wages were too low. She had previously complained that even before the pandemic, one in five employees in Germany had to work in the low-wage sector. “The economy was booming and profits doubled.”

Brinkhaus replied that since Angela Merkel (CDU) took office in 2005, seven million jobs requiring social security had been created. In addition, there have been increases in real wages in most sectors. “If I believed your words, ‘Dante’s Inferno’ would still be a wellness hotel across from Germany in 2021.”

“The economy must be unleashed”

Source: WORLD / Claudius Pflug

Dictating higher wages to the economy does not solve the problems. The CDU / CSU counts on the qualification of workers and the stimulation of the economy. Therefore, there should be no tax increases for companies, but on the contrary, there should be relief in the medium term. The “economy must be unleashed, we want to let it do so in order to develop leeway”. Thereafter, relief from middle and lower incomes could be considered.

This is where you will find third-party content

In order to interact with or display content from third-party providers, we need your consent.

Wagenknecht has no doubts that the left will return to the Bundestag. The party has been bobbing around six to seven percent in polls for a long time. Wagenknecht sees the reasons for this “unsatisfactory” level in the lack of visibility of left-wing positions: “It is not possible for people to associate the issue of social justice with us.”

Here you can listen to our WELT podcasts

We use the player from the provider Podigee for our WELT podcasts. We need your consent so that you can see the podcast player and interact with or display content from Podigee and other social networks.

?Change of power? is the WELT podcast to choose from – with Dagmar Rosenfeld and Robin Alexander. Every Wednesday. You can subscribe to Apple Podcasts, Spotify, Amazon Music, Deezer or via RSS feed, among others.

.

) [summary] => Bundestag election WORLD duel “Only you and the AfD believe that,” accuses Brinkhaus Wagenknecht Status:... [atom_content] =>
Bundestag election WORLD duel

“Only you and the AfD believe that,” accuses Brinkhaus Wagenknecht

WORLD duel – Ralph Brinkhaus against Sahra Wagenknecht

19 days until the federal election. In the WELT duel today, Sahra Wagenknecht, NRW’s top candidate for the federal election, and Ralph Brinkhaus, parliamentary group leader of the CDU / CSU, will answer questions from Tatjana Ohm and Robin Alexander.

Here you will find content from Podigee

In order to interact with or display content from Podigee and other social networks, we need your consent.

In the WELT duel, Union faction leader Ralph Brinkhaus and Sahra Wagenknecht exchange blows about climate protection and wages. The CDU politician thinks: The left portrays the situation in Germany as worse than ?Dante’s Inferno?.

Ex-Left parliamentary group leader Sahra Wagenknecht relies on her party’s participation in government on the side of the SPD. Wagenknecht, who wants to defend her parliamentary mandate as the top candidate in North Rhine-Westphalia, said at the WELT duel with Union parliamentary group leader Ralph Brinkhaus (CDU): “I hope that Olaf Scholz has the backbone to use other majorities.”

At the same time, she attacked the Greens in the dispute on the news channel WELT, whose coalition participation would be necessary for a red-green-red parliamentary majority, on the subject of CO2-Pricing sharp. The Greens want to accelerate the price increase and are targeting 60 euros per ton.

“It’s total hypocrisy”

?This is not a sensible climate policy to reach into the pockets of normal people and middle-class families. And it is also total hypocrisy to pretend that a normal wage earner would then buy the smart Tesla or switch to non-existent buses and trains. ”

Good mood, tough tone: Union parliamentary group leader Ralph Brinkhaus (CDU) and the Left MP Sahra Wagenknecht

Good mood, tough tone: Union parliamentary group leader Ralph Brinkhaus (CDU) and the Left MP Sahra Wagenknecht

Source: WORLD / Claudius Pflug

A black-green coalition, according to Wagenknecht, would further exacerbate social inequality. “The CO2-Price will then be increased even further, and there will be tax free gifts for the wealthy. And because that has to be recovered, you will probably retire at 68. “She called the pricing the” completely wrong lever “. ?The bad thing is that the CDU and the Greens are in agreement. High CO2-Prices are consumption taxes. ?So the Union is planning a tax increase through the back door. ?We wouldn’t go along with that.? Instead, companies would have to be forced to use other methods of production.

“It is not possible for people to associate the issue of social justice with us”

Source: WORLD / Claudius Pflug

Brinkhaus countered Wagenknecht on WELT television that she represented ?one-to-one AfD positions? on climate policy. And stressed that the fight against climate change without CO2-Pricing was not to be won. “You and the AfD are the only ones who believe that.”

also read

The chairman of the CDU / CSU parliamentary group Ralph Brinkhaus in an interview with Jacques Schuster and Thomas Vitzthum.  (Photo: Mr. Binkhaus is here in the artwork of the artist: Hinnerk Wehberg: " The invading Spree water")

He also vehemently rejected Wagenknecht’s criticism that wages were too low. She had previously complained that even before the pandemic, one in five employees in Germany had to work in the low-wage sector. “The economy was booming and profits doubled.”

Brinkhaus replied that since Angela Merkel (CDU) took office in 2005, seven million jobs requiring social security had been created. In addition, there have been increases in real wages in most sectors. “If I believed your words, ‘Dante’s Inferno’ would still be a wellness hotel across from Germany in 2021.”

“The economy must be unleashed”

Source: WORLD / Claudius Pflug

Dictating higher wages to the economy does not solve the problems. The CDU / CSU counts on the qualification of workers and the stimulation of the economy. Therefore, there should be no tax increases for companies, but on the contrary, there should be relief in the medium term. The “economy must be unleashed, we want to let it do so in order to develop leeway”. Thereafter, relief from middle and lower incomes could be considered.

This is where you will find third-party content

In order to interact with or display content from third-party providers, we need your consent.

Wagenknecht has no doubts that the left will return to the Bundestag. The party has been bobbing around six to seven percent in polls for a long time. Wagenknecht sees the reasons for this “unsatisfactory” level in the lack of visibility of left-wing positions: “It is not possible for people to associate the issue of social justice with us.”

Here you can listen to our WELT podcasts

We use the player from the provider Podigee for our WELT podcasts. We need your consent so that you can see the podcast player and interact with or display content from Podigee and other social networks.

?Change of power? is the WELT podcast to choose from – with Dagmar Rosenfeld and Robin Alexander. Every Wednesday. You can subscribe to Apple Podcasts, Spotify, Amazon Music, Deezer or via RSS feed, among others.

.

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