#jcap

[911onabcbts]

Jessica Capshaw confirmed the news of her casting with a post on instagram 💗

[detective-jane-rizzoli]

[greysanatodemi]

[mayasdeluca]

Camilla Luddington and Jessica Capshaw First Responders Reunion 

[morallygreys]

also okay im sorry for posting so much rapid fire about stuff that isn't greys/calzona but my GOD im weak in the knees. kat is so cool in her first ep. the character is sara's sweet spot, like callie personality with some dials turned down. its so fun to see them rambling and geeking out over stuff.

and FUCK they look so so so good in the suits and the suspenders and the coordinated office punk/goth vibes and mmmmmm SORRY IM GAY SORRY! IM ONLY HUMAN

[jaegencadash]

Dragon Age: Veilguard screenshots

[spacetimewithstuartgary]

Does the universe behave the same way everywhere? Gravitational lenses could help us find out

A JCAP study proposes a test for the Cosmological Principle using weak gravitational lensing

“The cosmological principle is like an ultimate kind of statement of humility,” explains James Adam, astrophysicist at the University of the Western Cape, Cape Town, South Africa, and lead author of the new paper. According to the Cosmological Principle, not only are we not at the center of the Universe, but a true center does not exist. A further assumption, similar to but distinct and independent from homogeneity, is that the Universe is also isotropic, meaning it has no preferred directions. These assumptions underlie the Standard Model of Cosmology, the theoretical framework used to explain the origin, evolution, and current state of the Universe. It is currently the most robust and consistent model, verified by numerous scientific observations, though not yet perfect.

In fact, some recent cosmological observations suggest that, on extremely large scales, there may be anisotropies—variations in the Universe’s structure that challenge the assumption of isotropy. These anomalies have been identified using different methods and include conflicting measurements of the Universe’s expansion rate, studies of the cosmic microwave background radiation, and various inconsistencies in cosmological data. However, these observations are not yet conclusive. To rule out measurement errors, more data must be collected using independent methodologies. If multiple techniques confirm the same anomalies, their existence would become much harder to dismiss.

The new study published in JCAP by Adam and colleagues developed a new methodology to test the Universe’s isotropy using observations from instruments like Euclid. Euclid is an ESA space telescope launched in 2023, which has just begun producing images of the cosmos with unprecedented power, precision, and resolution.

“We investigated a different method of constraining anisotropy which involved so-called weak gravitational lensing,” says Adam. Weak lensing occurs because matter between us and a distant galaxy slightly bends the galaxy’s light, altering its apparent shape. This specific type of distortion can reveal whether anisotropies exist in the Universe. In fact, the analysis of weak lensing data allows scientists to separate the signal into two components: E-mode shear, which is generated by the distribution of matter in an isotropic and homogeneous Universe, and B-mode shear, which is typically very weak and should not appear on large scales in an isotropic Universe.

Simply observing B-modes on large scales would not be enough to confirm anisotropies, as these signals are very weak and could result from measurement errors or secondary effects. If an anisotropy is real, it would affect both E-modes and B-modes in a non-independent way, generating a correlation between the two signals. Only if Euclid’s data reveal a significant correlation between E- and B-modes would it suggest an anisotropic expansion of the Universe.

Next Steps and Possible Implications

In their study, Adam and colleagues simulated the effects of an anisotropic universe expansion on a computer and developed a model describing how deviations from isotropy would modify the weak lensing signal. They then calculated the E-B cross-correlation to demonstrate that an anisotropic universe would produce a correlation between the two signals, and applied their model to future Euclid data, showing that these observations will be precise enough to detect potential anisotropies.

Euclid is already beginning to provide useful data for these analyses, and new observatories will soon come online. Now that they have developed the proper methodology, Adam and his colleagues intend to apply it to real data. “Once you’ve kind of quadruple-checked your work, then you have to seriously consider whether this fundamental assumption is actually true or not, particularly in the late Universe. Or perhaps it just was never true”, explains Adam.

If these anomalies are confirmed, they would open a new chapter in cosmology. It won’t be easy, though: there are already alternative theoretical models that predict anisotropies, but none are as solid or widely accepted as the Standard Model. However, any theoretical revision would also depend on the extent of the anisotropy that could be detected, which remains uncertain.“It could be a serious revision,” concludes Adam, "or just adding a little term here or there. Who knows?”

If you want to learn more…

The Cosmological Principle

We know that the Universe is expanding, and this might lead us to mistakenly imagine that there is a center (where the Big Bang occurred) from which this expansion originated. Instead, we should think of our Universe as if it were the surface of the Earth: we can move in any direction without ever reaching an edge, but there is no center on the surface. If Earth behaved like a balloon being inflated, we would see that the space on its surface expands, but there would be no specific point on it that could be considered the center of the expansion.

According to the Cosmological Principle, not only is there no center or privileged location in cosmic space, but space itself has homogeneous properties everywhere, at least on sufficiently large scales. We know that there are voids and dense regions, such as galaxies and the space between them, but if we zoom out—just like we zoom out on a smartphone with two fingers—these inhomogeneities disappear. This principle forms the foundation of the theoretical model we use today to explain the origin, evolution, and current state of the Universe. It is also very convenient because it implies that the laws of physics apply everywhere in the same way, significantly simplifying our understanding of the cosmos.

Weak Lensing

Weak lensing is based on the principle, described by general relativity, that gravity can bend the path of light. The greater the mass of a celestial body, the stronger the distortion of light passing near it. Galaxies and other objects located behind a massive gravitational field appear subtly distorted, with their shapes and orientations slightly altered.

This effect is similar to looking at an object through a magnifying glass. Just as the curved surface of the lens bends and distorts light, changing the apparent shape and position of objects behind it, the gravitational field of a massive cosmic structure bends and distorts the light from distant galaxies. As a result, an elliptical galaxy may appear slightly squished or rotated.

By carefully analyzing these distortions across billions of galaxies, surveys like Euclid and LSST can detect weak lensing, revealing the presence and distribution of unseen matter, including dark matter.

IMAGE: Examples of how E and B modes deform imeges of distant galaxies Credit SISSA Medialab

[mayabishopgold]

have you listened to Stefania's podcast with JCap and Camilla? they talked about Carina going back to Grey's to be with Arizona... 🤮

I haven’t listened to the whole thing (just this particular clip because it was sent to me), but please, Stefania, just let Maya and Carina be happy.

She’s been trying to erase their kids since the show ended—with the excuse of wanting more sex scenes—and now this?

At least when Danielle pitched Maya dying (which as a Maya fan I also hated), it wasn’t about negating their shared history. And Carina moving on would not have been as insulting as Carina and Arizona flirting while she has a wife and several kids at home LOL

[fatehbaz]

In 2023, "the world's largest mining convention" took great interest in Latin America. With the active help of the Canadian federal government, Canadian mining companies are moving to expand their power in Peru and Ecuador.

---

On January 18, 2023, as thousands of Peruvians were taking to the streets in Lima to denounce the spiralling political crisis in the country, Canadian Ambassador Louis Marcotte was meeting with the Peruvian Minister of Energy and Mines. [...]. Demonstrators have been met with widespread arrests and brutal violence. [...] [S]ince [protests began] [...] the Canadian mission has met with numerous top-level Peruvian officials in unprecedented fashion. [...] Ambassador Marcotte tweeted several photos from the meeting, using the occasion to promote mining as a benefit for communities and to express Canadian support for the upcoming Peruvian delegation who will attend the Prospectors and Developers Association of Canada’s (PDAC) annual conference in Toronto from March 5 to 8 [2023]. Each year, the world’s largest mining convention draws tens of thousands of [...] company officials, and government representatives to [...] promote an expansion of mining -- with little concern for the consent of those most affected, including in Peru. [...] For years, MiningWatch Canada and the Justice and Corporate Accountability Project (JCAP), alongside organizations including Red Muqui, Cooperacción, Derechos Humanos Sin Fronteras-Cusco and Derechos Humanos y Medio Ambiente DHUMA, have documented the many harms caused by industrial large-scale Canadian mining to rural communities [...]. Ambassador Marcotte chose to promote more Canadian mining investment in the country and plug PDAC 2023 -- where a session dubbed “Peru Day” promises to discuss “opportunities [...].” Canada’s priorities in Peru could not be more clear. [...]

Text by: Kirsten Francescone. “State-sanctioned violence in Peru and the role of Canadian mining.” Canadian Dimension. 6 March 2023. [Bold emphasis added by me.]

---

Canadian companies invested over $8 billion in 10 projects [in Peru in 2021] [...]. Toronto-based Hudbay Minerals operates the Constancia mine; Vancouver’s Pan American Silver operates the Shahuindo and La Arena mines; and Teck Resources’, also headquartered in Vancouver, operates the Antamina mine, with a 22.5 percent ownership stake in the project. Antamina is Peru’s largest mine, ranking among the top 10 producing mines in the world in terms of volume, and is the single most important producer of copper, silver, and zinc in the country. In 2021, the mine generated over $6 billion in revenue and nearly $3.7 billion in gross profits. [...] Companies can sign service contracts directly with the National Peruvian Police, and off-duty police officers are permitted to work for private security companies while using state property, such as weapons, uniforms and ammunition. [...] These harms are not minimal: contamination of agricultural lands and waterways around Pan American Silver’s Quiruvilca mine and the criminalization of community leaders and land dispossession due to environmental contamination at Shahuindo; violation of Indigenous self-determination and the right to a clean environment around Plateau Energy’s proposed lithium and uranium mine, sitting atop the region’s most important tropical glacier; undercutting of economic benefits for communities most affected by mining operations, and more.

Text by: Kirsten Francescone. “State-sanctioned violence in Peru and the role of Canadian mining.” Canadian Dimension. 6 March 2023. [Bold emphasis added by me.]

---

Two Canadian mining companies are drawing the ire of activists and Indigenous groups in Ecuador, where the government [...] is using Toronto-based Adventus Mining’s Curipamba copper-gold project in Las Naves and Vancouver-headquartered Atico Mining’s La Plata project in Sigchos as test sites to impose a new and controversial process for environmental consultation under Decree 754 -- an executive edict issued on May 31 [2023] that has been roundly denounced as unconstitutional and illegal. Decree 754 [...] affords communities no rights to veto development projects on their lands. [...] The pro-mining [...] government, which swept to power in 2021, passed the decree a few weeks after dissolving the elected national assembly and proceeding to govern by executive fiat. National protests subsequently erupted [...]. [P]residential elections [are] scheduled for August 20 [2023]. [...] Residents of Las Naves and Sigchos have faced heavily armed military and police forces, which have come in to break up protests [...]. Stephen Potter, Canada’s ambassador to Ecuador, who was in Las Naves to visit Adventus’s Curipamba project at the beginning of June [2023], said in an interview that the mine is a “responsible investment that has the support of the community.” [...] There has also been ongoing conflict and opposition tied to other Canadian mining projects, including in the Ecuadorian Amazon where the Shuar Arutam people have denounced the militarization of their territory to advance Vancouver-based Solaris Resources’ Warintza copper project. [...]

Text by: Viviana Herrera and Ivonne Ramos. "Violence surrounds Canadian mining projects in Ecuador." Canadian Dimension. 4 August 2023. [Bold emphasis added by me.]

---

[T]he [...] government is on the cusp of signing a free trade agreement with Canada and becoming the “next destination for mining.” Only two mines are currently in operation in Ecuador [...]. In September 2022, [...] Ecuador’s Minister of Mines and Energy [...] announced six new ‘strategic’ mining projects. Five of these will be led by Canadian firms [...]. According to the minister, these projects may [against existing laws] obtain an environmental license without the requirement for prior consultation [with local communities,]. This announcement happened after one of the largest national strikes in the country called by CONAIE, demanding the [...] government issue a moratorium on mining and nullify another decree -- Executive Decree 151 -- that would allow for mining in the Amazon [...]. Earlier this year, [the Minister of Mines and Energy] spoke in Toronto at the annual conference of the Prospectors and Developers Association of Canada (PDAC), the world’s largest mining convention, about Ecuador’s plans to become Latin America’s next premier mining destination by speeding up project approvals and signing a new trade pact with Ottawa. “A free trade agreement with Canada would make Ecuador the best mining destination,” he reassured investors. [...] With $3.7 billion invested, Canada is the leading foreign investor in Ecuador, and the majority is already invested in the country’s mining sector. [...]

Text by: Viviana Herrera and Ivonne Ramos. "Violence surrounds Canadian mining projects in Ecuador." Canadian Dimension. 4 August 2023. [Bold emphasis added by me.]

[spookyrobbins]

im still not sure why they even decided that mark and callie should have a baby. it's such a pointless storyline. like why.

honestly no idea it’s so pointless. like i understand why they had to write arizona going to africa for jcap’s pregnancy (although honestly, they probs could’ve just had arizona at a conference or something where she was gone for a bit). but it wasn’t like sara ramirez was also pregnant and they were just writing that in. it was super unnecessary

if they wanted storylines for them, there were a million different options and yet they went for the pregnancy one

[911onabcbts]

🚨🚨: Jessica Capshaw has been cast in Nashville!

She will be playing the female lead and the wife of Captain Sharpe.

[totoshappylife]

Electromagnetic field solver for QED

Excerpt from PDF: Prepared for submission to JCAP Electromagnetic field solver for QED polarization in super-strong magnetic fields of magnetar and laser plasmas M. Alawashra,a,∗J. Ben´aˇcek,b,∗M. Pohl,a,b and M.V. Medvedevc,d a,∗Deutsches Elektronen-Synchrotron DESY, Platanenallee 6, 15738 Zeuthen, Germany b,∗Institute for Physics and Astronomy, University of Potsdam, Karl-Liebknech-Str. 24/25,…

[allengreenfield]

Does the universe behave the same way everywhere? Weak gravitational lensing could provide an answer https://phys.org/news/2025-02-universe-weak-gravitational-lensing.html

[skycrorg]

¿Es realmente isótropo y homogéneo el universo? Una lente gravitacional débil podría proporcionar una respuesta

Si se confirman estas anomalías, se abriría un nuevo capítulo en la cosmología. Pero no será fácil: ya existen modelos teóricos alternativos que predicen anisotropías, pero ninguno es tan sólido ni tiene tanta aceptación como el Modelo Estándar.

Un estudio publicado en el Journal of Cosmology and Astroparticle Physics (JCAP) presenta una metodología para poner a prueba el supuesto de homogeneidad e isotropía cósmicas, conocido como Principio Cosmológico, aprovechando el efecto de lente gravitacional débil (un efecto de distorsión de la luz descrito por la relatividad general) en imágenes astronómicas recogidas por nuevos observatorios…

[simpybaka]

Assigned Vector at corridor,

I indentity as orthogonal,

My pronouns are î/jcap/kcap

[mayasdeluca]

Epic cons has 40+ guests aside from Danielle and Stefania who would you want to meet and what would you ask if given the chance?

It's insane!

If money was not a factor (lol) I would meet quite a few of them. I would love to meet Alberto, he seems amazing and would love to get his thoughts on what he thinks a Carina/Ryan friendship would look like if Ryan was still alive and how he thinks Ryan would be involved in Marina's lives in general if he was still on the show. Jay seems like he would be fun to meet too so I think I'd want to meet him also.

I think meeting Kate Walsh would be cool too but also intimidating lol I don't know what I'd ask her. Same with JCap because she seems fun. Maybe I'd ask Kate what she thinks about a Carina/Addison dynamic since we barely got anything between them. We should have gotten more. Kim is another one who seems really sweet that would be nice to meet.

There's a few actors from 911 Lone Star going but none of the ones that I would really want to meet from the cast.