ark

Intra-Aneurysmal High-Resolution 4D MR Flow Imaging for Hemodynamic Imaging Markers in Intracranial Aneurysm Instability [RESEARCH]

BACKGROUND AND PURPOSE:

Prediction of aneurysm instability is crucial to guide treatment decisions and to select appropriate patients with unruptured intracranial aneurysms (IAs) for preventive treatment. High-resolution 4D MR flow imaging and 3D quantification of aneurysm morphology could offer insights and new imaging markers for aneurysm instability. In this cross-sectional study, we aim to identify 4D MR flow imaging markers for aneurysm instability by relating hemodynamics in the aneurysm sac to 3D morphologic proxy parameters for aneurysm instability.

MATERIALS AND METHODS:

In 35 patients with 37 unruptured IAs, a 3T MRA and a 7T 4D MRI flow scan were performed. Five hemodynamic parameters—peak-systolic wall shear stress (WSSMAX) and time-averaged wall shear stress (WSSMEAN), oscillatory shear index (OSI), mean velocity, and velocity pulsatility index—were correlated to 6 3D morphology proxy parameters of aneurysm instability—major axis length, volume, surface area (all 3 size parameters), flatness, shape index, and curvedness—by Pearson correlation with 95% CI. Scatterplots of hemodynamic parameters that correlated with IA size (major axis length) were created.

RESULTS:

WSSMAX and WSSMEAN correlated negatively with all 3 size parameters (strongest for WSSMEAN with volume (r = –0.70, 95% CI –0.83 to –0.49) and OSI positively (strongest with major axis length [r = 0.87, 95% CI 0.76–0.93]). WSSMAX and WSSMEAN correlated positively with shape index (r = 0.61, 95% CI 0.36–0.78 and r = 0.49, 95% CI 0.20–0.70, respectively) and OSI negatively (r = –0.82, 95% CI –0.9 to –0.68). WSSMEAN and mean velocity correlated negatively with flatness (r = –0.35, 95% CI –0.61 to –0.029 and r = –0.33, 95% CI –0.59 to 0.007, respectively) and OSI positively (r = 0.54, 95% CI 0.26–0.74). Velocity pulsatility index did not show any statistically relevant correlation.

CONCLUSIONS:

Out of the 5 included hemodynamic parameters, WSSMAX, WSSMEAN, and OSI showed the strongest correlation with morphologic 3D proxy parameters of aneurysm instability. Future studies should assess these promising new imaging marker parameters for predicting aneurysm instability in longitudinal cohorts of patients with IA.




ark

Pericarotid Fat as a Marker of Cerebrovascular Risk [RESEARCH]

SUMMARY:

Vascular inflammation is widely recognized as an important factor in the atherosclerotic process, particularly in terms of plaque development and progression. Conventional tests, such as measuring circulating inflammatory biomarkers, lack the precision to identify specific areas of vascular inflammation. In this context, noninvasive imaging modalities can detect perivascular fat changes, serving as a marker of vascular inflammation. This review aims to provide a comprehensive overview of the key concepts related to perivascular carotid fat and its pathophysiology. Additionally, we examine the existing literature on the association of pericarotid fat with features of plaque vulnerability and cerebrovascular events. Finally, we scrutinize the advantages and limitations of the noninvasive assessment of pericarotid fat.




ark

Pazopanib elicits remarkable response in metastatic porocarcinoma: a functional precision medicine approach [RESEARCH REPORT]

Metastatic porocarcinomas (PCs) are vanishingly rare, highly aggressive skin adnexal tumors with mortality rates exceeding 70%. Their rarity has precluded the understanding of their disease pathogenesis, let alone the conduct of clinical trials to evaluate treatment strategies. There are no effective agents for unresectable PCs. Here, we successfully demonstrate how functional precision medicine was implemented in the clinic for a metastatic PC with no known systemic treatment options. Comprehensive genomic profiling of the tumor specimen did not yield any actionable genomic aberrations. However, ex vivo drug testing predicted pazopanib efficacy, and indeed, administration of pazopanib elicited remarkable clinicoradiological response. Pazopanib and its class of drugs should be evaluated for efficacy in other cases of PC, and the rationale for efficacy should be determined when PC tumor models become available. A functional precision medicine approach could be useful to derive effective treatment options for rare cancers.




ark

[PERSPECTIVES] {alpha}-Synuclein in Parkinson's Disease: 12 Years Later

α-Synuclein (AS) is a small presynaptic protein that is genetically, biochemically, and neuropathologically linked to Parkinson's disease (PD) and related synucleinopathies. We present here a review of the topic of this relationship, focusing on more recent knowledge. In particular, we review the genetic evidence linking AS to familial and sporadic PD, including a number of recently identified point mutations in the SNCA gene. We briefly go over the relevant neuropathological findings, stressing the evidence indicating a correlation between aberrant AS deposition and nervous system dysfunction. We analyze the structural characteristics of the protein, in relation to both its physiologic and pathological conformations, with particular emphasis on posttranslational modifications, aggregation properties, and secreted forms. We review the interrelationship of AS with various cellular compartments and functions, with particular focus on the synapse and protein degradation systems. We finally go over the recent exciting data indicating that AS can provide the basis for novel robust biomarkers in the field of synucleinopathies, while at the same time results from the first clinical trials specifically targeting AS are being reported.




ark

RPG Cast – Episode 567: “Supermarket Cloth Map”

This week we discuss the bacon that broke Anna's back, Kelley shows us the power of the nip-nado, Pascal meets the Bok Choys, Josh is sponsored by revengecrabs.com, and Robert speedruns the produce department.

The post RPG Cast – Episode 567: “Supermarket Cloth Map” appeared first on RPGamer.



  • News
  • Podcasts
  • RPG Cast
  • Criminal Girls 2: Party Favors
  • Parasite Eve
  • Sakuna: Of Rice and Ruin
  • Seven Knights: Time Wanderer
  • World of Warcraft: Shadowlands
  • Yakuza: Like a Dragon

ark

Microsoft closing Arkane Austin was “stupid”, says founder: recreating “a very special group” like that would be “impossible”

Today in "person you already like says something you already agree with, but it’s still good to hear them say it" news, Arkane founder and im-simmy RPG studio WolfEye head Raphael Colantonio has spoken on Microsoft’s decision to shutter Prey (2017) studio Arkane Austin - alongside a handful of others - back in May.

Colantonio, who founded Arkane in 1999 and departed in 2017 to form Weird West studio WolfEye, recently chatted to Jeremy Peel for PC Gamer about Arkane’s closure, saying:

I think if you look a little bit, it's obvious that Arkane Austin was a very special group of people that have made some cool things and that could pull it off again. I think it was a decision that just came down to, 'We need to cut something.' Was it to please the investors, the stock market? They're playing a different game.

Read more




ark

Nightingale can't outfly "the stark realities of the industry" as creators Inflexion close UK office and lay people off

Inflexion Games are closing their UK office, laying off staff and restructuring their main Canadian studio after failing to find commercial success with their Victorian fantasy survival game Nightingale. Reportedly, at least 22 people have been let go.

Read more




ark

This bite-size free horror game has you study an ancient artefact that holds a dark secret

I have zero archaeology experience or knowledge, but I bet archaeologists really love their jobs (for the most part). They get to analyse and discover cool artefacts and educate us on the histories of forgotten civilisations. That's dreamy stuff, that is. But I do wonder what it's like for archaeologists to discover and study something they shouldn't have; something with a disturbing secret - a curse, maybe. Bite-sized horror game The Children Of Clay explores this idea and I'd like more of it, please.

Read more




ark

Buggy monsters in Monster Hunter Wilds have sparked a wave of low-poly animal adoration

I've spent quite a lot of today trying to figure out why, exactly, some of the monsters in the Monster Hunter Wilds beta looked like bundles of copulating pyramids slathered in crocodile gravy. Nic clued me in on this reddit thread earlier, which cites unnamed Chinese players who've allegedly data-mined the beta's monster models, and learned that they are extremely large, encompassing hundreds of thousands of polygons.

If every monster in Monster Hunter Wilds were that fancy all of the time, your computer would become a volcano. As such, the game resorts to loading-on-demand systems to ensure that you only see those gorgeous details when the monsters are close by and, as the case may be, angrily sitting on you. When they're further afield, the flourishes fall away to free up memory and processing power. The popular Redditor explanation for the presence of monsters that look like Henry Moore sculpture is basically that the LOD systems are being forgetful, and neglecting to load the additional polygons at proximity.

Read more




ark

Warcraft 2: Tides Of Darkness Remastered apparently leaks ahead of the RTS series’ 30th anniversary direct next week

We’re still a week away from Blizzard’s Warcraft 30th Anniversary Direct next Wednesday the 13th of November, but art from an apparent remaster of 1995 real time strategy game Warcraft II: Tides Of Darkness has leaked online, via Xibbly user Stiven. It’s a thin one, as far as leaks go, but does show what looks to be cover, logo art, and a Battle.net icon. Thanks for the spot, Percy Coswald Gamer.

Read more




ark

Planet Coaster 2 is out now, adding water slides and pools to the theme park construction sim

We'll have a review of Planet Coaster 2 soon, but I keep making Brendy do other tasks so he's not had enough time yet to ride the rails. That means it falls to me to at least let you know that Frontier's theme park builder is out now.

Read more




ark

Alan Wake 2’s The Lake House is a dark, brilliant parable on the devaluation of art and artists

There must be hundreds of typewriters in the hall, their collective clacks a tidal wave of soulless automation, rising up to greet agent Kiran Estevez as she enters, pistol and flashlight in hands. Exploring rooms to the side, Alan Wake 2: The Lake House’s star finds whiteboards and documents revealing the typewriter’s purpose: to mimic Wake’s writing. Pages are graded along criteria such as ‘style’, ‘tone’, and ‘content’, then “fed into the algorithm” as references until “near-identical stories” to Wake’s can be produced.

“If Jules could simply cut the painter open and pull the painting out of him, he would,” reads one of the real Alan’s typewritten pages. That’s Jules Marmont, the obsessive head of the titular FBC centre. The Marmonts - Jules and his wife Diana - are running experiments to forcibly and synthetically create works of art, aiming to mimic creative passion convincingly enough for the paranatural entity inside Cauldron Lake to respond, as it has in the past.

Read more




ark

Food price inflation rises again as Britons rush to supermarkets in Christmas countdown



October marked the "biggest" sales month for supermarkets in the UK so far despite food price hikes.




ark

Banana-shaped galaxies are helping unpeel the mysteries of dark matter

Astronomers have been spotting strange banana-shaped galaxies and the evidence seems to indicate that filaments of dark matter make them take this shape




ark

New Scientist recommends multiverse thriller Dark Matter

The books, TV, games and more that New Scientist staff have enjoyed this week




ark

Dark matter could be hiding inside strange failed stars

Brown dwarfs could be hiding dark matter inside their cores – if they are, there would be signs that could help us track it down




ark

We finally know exactly how dark deep space is

A faint glow from all of the galaxies that have ever existed fills the cosmos, and NASA's New Horizons spacecraft has made the best measurement ever of just how faint it is




ark

Dark matter may allow giant black holes to form in the early universe

The long-standing mystery of how supermassive black holes grew so huge so quickly could be solved by decaying dark matter




ark

OpenAI’s warnings about risky AI are mostly just marketing

A powerful new AI called o1 is the most dangerous that OpenAI has ever released, the firm claims – but who are these warnings for, asks Chris Stokel-Walker




ark

2 grizzlies follow hikers down trail for 20 minutes in Banff National Park

Two large grizzly bears followed 13 hikers down a trail in Banff National Park for 20 minutes — with one even making a few quick runs at the group.



  • News/Canada/Calgary

ark

Can the free market ensure artificial intelligence won't wipe out human workers?

People keep predicting that each wave of new technology will mean humans can put their feet up. It hasn't happened yet. Some economists and anthropologists who study the subject say even with the arrival of artificial intelligence, humans will remain integral to making the world go round.




ark

This pediatrician has a stark warning about the risks of 'anti-science'

A pediatrician, author and co-inventor of a low-cost COVID-19 vaccine warns that the anti-vaccine movement has morphed into a political force that threatens the world's gains against deadly childhood infections like measles.




ark

Justice Department kept FBI employees in the dark for years about whistleblower protections

A new Government Accountability Office report says that the Justice Department kept FBI employees in the dark for seven years after Congress updated whistleblower protections for bureau personnel in 2016.




ark

Liverpool attempted to trademark 'Allez Allez Allez' after famous fan chant

Liverpool already have one song synonymous with the club but they did attempt to officially do likewise with another. The Reds tried to trademark 'Allez Allez Allez'..






ark

Georgia Bell: I did a Parkrun in 16 minutes 8 seconds – now I’m an Olympic medallist




ark

Hashtag Trending Mar.5- Apple Music fined for market dominance; LockBit back from the dead; OpenAI kills ChatGPT plugins

Apple Music gives a whole new meaning to the phrase the hits just keep on coming.  It’s not the opposing candidates, it’s public AI systems that are spreading election disinformation, and LockBit, the cybercriminal gang may be back from the dead and saying so long to the ChatGPT plugins, which went from innovation to legacy […]

The post Hashtag Trending Mar.5- Apple Music fined for market dominance; LockBit back from the dead; OpenAI kills ChatGPT plugins first appeared on ITBusiness.ca.




ark

Dark matter may be behind wobble in Mars’ orbit, study suggests

A bold new study in Physical Review suggests that a wobble detected in Mars' orbit could be the result of dark matter made up of primordial black holes.



  • 9f285106-087f-5a54-8c1a-504d0b3d36e5
  • fnc
  • Fox News
  • fox-news/science/air-and-space
  • fox-news/science/air-and-space/planets
  • fox-news/science/air-and-space/astronomy
  • fox-news/science
  • fox-news/science
  • article

ark

Blade of Darkness Review

After years trapped in licensing hell, the classic action-RPG is back. But does it still hold up in the days of Dark Souls?




ark

Evidence points to Wuhan market as source of covid-19 outbreak

Genetic testing on samples collected during the earliest days of the covid-19 outbreak suggests it is likely that the virus spread from animals to humans at the Huanan seafood market




ark

The remarkable science-backed ways to get fit as fast as possible

A better understanding of what happens to our bodies when we get fitter can unlock ways to speed up the journey – and it might be simpler than you think




ark

Parkrun events could boost your life satisfaction

People report greater life satisfaction six months after starting Parkrun events, which could partly be due to the supportive environment




ark

Australians urged to read labels as country marks Food Safety Week

Australians have been urged to look before they cook and read the safety advice on food labels. The Food Safety Information Council (FSIC) issued the call ahead of Australian Food Safety week from Nov. 9 to 16. Lydia Buchtmann, FSIC CEO, said the charity’s research shows that only 3 in... Continue Reading




ark

Posthaste: These are the best buyers' markets in Canadian real estate — for now

Listings outpace demand in Toronto and Vancouver




ark

Mark Cuban runs to 'less hateful' social media platform after scrubbing X account of Harris support

Dallas Mavericks minority owner Mark Cuban returned to the Bluesky social media platform with a post after weeks of contentious X posts.



  • 03659cc7-b9b2-59bb-a83a-a51c4f033588
  • fnc
  • Fox News
  • fox-news/sports/nba/dallas-mavericks
  • fox-news/sports/nba
  • fox-news/sports
  • fox-news/politics
  • fox-news/sports
  • article

ark

Jessica Simpson sparks divorce rumors with cryptic post

Jessica Simpson sparked rumors this week with a cryptic post about making new music and having put up with "everything I did not deserve."



  • 73ca097a-ffd9-5842-be14-09233aebdc9a
  • fnc
  • Fox News
  • fox-news/person/jessica-simpson
  • fox-news/entertainment
  • fox-news/entertainment/music
  • fox-news/entertainment
  • article

ark

Mutiny threat sparks House GOP infighting ahead of Trump visit: 'Just more stupid'

House Republicans are once again at odds with one another after conservatives threatened to protest Speaker Johnson's bid to lead the conference again.



  • 5cfa4a69-f5e8-544b-b124-e66551151a9a
  • fnc
  • Fox News
  • fox-news/politics/house-of-representatives
  • fox-news/politics/house-of-representatives/republicans
  • fox-news/person/mike-johnson
  • fox-news/politics
  • fox-news/politics
  • article


ark

In a Landmark Study, Scientists Discover Just How Much Earth's Temperature Has Changed Over Nearly 500 Million Years

Researchers show the average surface temperature on our planet has shifted between 51.8 to 96.8 degrees Fahrenheit




ark

After Decades of Searching, Are Physicists Closing In on Dark Matter?

With no conclusive laboratory results, researchers are turning to other methods to find the elusive substance






ark

New LED camouflage can deter shark attacks, scientists say

Sharks less likely to interact as LED lights get brighter






ark

Deer in distress in Kenora, Ont., sparks calls from resident for more wildlife support

A Kenora, Ont., resident says she wants to see more resources for people who encounter sick or injured animals after seeing a deer in her yard with a tomato cage stuck on its head. Here's how the community has responded to the incident, and what we know about the deer's status.



  • News/Canada/Thunder Bay



ark

‘Citadel: Honey Bunny’ series review: Varun Dhawan, Samantha’s spy show sparks intermittent joy

Directors Raj & DK bring texture and technique to this Indian spin-off of ‘Citadel’, with uneven results