A 16-year-old girl presented to her primary care physician with a one-month history of decreased appetite and abdominal pain. She had normal bowel movements and no vomiting, but her periumbilical pain limited her ability to finish most meals. She had gradual weight loss over the previous 2 years, and during the previous 4 years, she intermittently received counseling for depression after the loss of her mother. Her initial physical examination and laboratory evaluation were unremarkable. She was referred to a nutritionist, adolescent medicine, and pediatric gastroenterology. Her presentation evolved over time, which ultimately led to a definitive diagnosis.

David E. Cade, J. Jacob Levenson, Robert Cooper, Rafael de la Parra, D. Harry Webb, and Alistair D. M. Dove

Whale sharks (Rhincodon typus Smith 1828) – the largest extant fish species – reside in tropical environments, making them an exception to the general rule that animal size increases with latitude. How this largest fish thrives in tropical environments that promote high metabolism but support less robust zooplankton communities has not been sufficiently explained. We used open-source inertial measurement units (IMU) to log 397 hours of whale shark behavior in Yucatan, Mexico, at a site of both active feeding and intense wildlife tourism. Here we show that the strategies employed by whale sharks to compensate for the increased drag of an open mouth are similar to ram-feeders five orders of magnitude smaller and one order of magnitude larger. Presumed feeding constituted 20% of the total time budget of four sharks, with individual feeding bouts lasting up to 11 consecutive hrs. Compared to normal, sub-surface swimming, three sharks increased their stroke rate and amplitude while surface feeding, while one shark that fed at depth did not demonstrate a greatly increased energetic cost. Additionally, based on time-depth budgets, we estimate that aerial surveys of shark populations should consider including a correction factor of 3 to account for the proportion of daylight hours that sharks are not visible at the surface. With foraging bouts generally lasting several hours, interruptions to foraging during critical feeding periods may represent substantial energetic costs to these endangered species, and this study presents baseline data from which management decisions affecting tourist interactions with whale sharks may be made.

The authors present results of the first high-resolution deep seismic reflection survey in the Pieniny Klippen Belt (PKB) in Poland. This survey sheds new light on the matter of olistostromes and the mélange character of the PKB. The sedimentary mass-transport deposits represented by olistoliths and olistostromes manifest themselves by different petrophysical parameters of rocks (velocity, density and resistivity) and seismic attributes. Seismic attributes are very effective in the interpretation of the geology of complex mélanges. The authors used selected attributes: low-pass filter, energy, energy gradient, dip-steered median filter, Prewitt filter, Laplacian edge enhancing filter and square root of the energy gradient. These attributes emphasize changes of the seismic image inside mélange zones. The distinguished olistoliths are now inside imbricated thrust structures and they are tectonically rearranged. Polygenetic mélanges in the PKB originated as a result of sedimentary and tectonic processes. The PKB in the investigated area forms several north-vergent thrust sheets belonging to the Złatne and Hulina nappes. Both nappes contain large chaotic, non-reflective olistoliths as well as the smaller mainly high-reflective olistoliths. Olistoliths are arranged parallel to the flysch layering and thrusts. The results presented confirm the postulated two olistostrome belts within the PKB structure.

Thematic collection: This article is part of the Polygenetic mélanges collection available at: https://www.lyellcollection.org/cc/polygenetic-melanges

In the past decade, significant research efforts have been devoted to mineral chemistry studies to assist porphyry exploration. These activities can be divided into two major fields of research: (1) porphyry indicator minerals (PIMs), which are used to identify the presence of, or potential for, porphyry-style mineralization based on the chemistry of magmatic minerals such as zircon, plagioclase and apatite, or resistate hydrothermal minerals such as magnetite; and (2) porphyry vectoring and fertility tools (PVFTs), which use the chemical compositions of hydrothermal minerals such as epidote, chlorite and alunite to predict the likely direction and distance to mineralized centres, and the potential metal endowment of a mineral district. This new generation of exploration tools has been enabled by advances in and increased access to laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS), short-wave length infrared (SWIR), visible near-infrared (VNIR) and hyperspectral technologies. PIMs and PVFTs show considerable promise for exploration and are starting to be applied to the diversity of environments that host porphyry and epithermal deposits globally. Industry has consistently supported development of these tools, and in the case of PVFTs encouraged by several successful blind tests where deposit centres have successfully been predicted from distal propylitic settings. Industry adoption is steadily increasing but is restrained by a lack of the necessary analytical equipment and expertise in commercial laboratories, and also by the ongoing reliance on well-established geochemical exploration techniques (e.g. sediment, soil and rock chip sampling) that have aided the discovery of near-surface resources over many decades, but are now proving less effective in the search for deeply buried mineral resources and for those concealed under cover.

Thematic collection: This article is part of the Exploration 17 collection available at: https://www.lyellcollection.org/cc/exploration-17

An exceptionally well-preserved specimen of the articulated rhodophyte Permocalculus, compared with P. tenellus sensu Elliott, 1955, is described from fine-grained Upper Permian limestones of the Khuff Formation of Saudi Arabia. Longitudinal medullary and sheaf-like cortical filaments extend through the uniserial series of elongate-globular, concave- and convex-terminating, interlocking segments for which they are interpreted to have functioned in articulation. The filaments tend to splay and branch laterally into the cortex where they terminate at the pores. At the terminal aperture, the filaments extend as bifurcating and possibly trifurcating branches and may serve as the origin of a new segment. Numerous elongate-globular chambers, up to five in each row and intimately involved with the filaments, are developed in the outer medulla and are considered to represent reproductive sporangia. The specimen is considered to have occupied predominantly low-energy, normal to slightly elevated salinity, shallow conditions within the subtidal regime of a lagoon.

Obtaining blood and cerebrospinal fluid is generally less invasive than standard tumor biopsy, and are increasingly used to develop surrogate biomarkers. Leptomeningeal disease, a devastating complication of cancer, represents a unique opportunity for using liquid biopsies for diagnosis, treatment, and to elucidate underlying mechanisms of resistance to therapy.

See related article by Smalley et al., p. 2163

Your home’s value will not be added when you try to take care of your garden, gilded handles in bathroom or swimming pool. In fact, home buyers pay attention to more useful items.

Pigeons feathers are remarkably complex and understanding how they work has led to the first robot that flies like a pigeon, dubbed PigeonBot

The super-sensitive smelling ability of American grasshoppers has been used to create biological bomb sniffers, which could prove useful for security purposes

Morningside USA was supposed to be apocalypse-proof. 

A gated, stucco fortress in the southwest corner of Missouri’s Ozark mountains, Morningside is an evangelical Christian community built to rent condos right through the end of the world.

“Where are you going to go when the world's on fire? Where are you going to go? This place is for God's people and this place, we need some farmers to move here,” Morningside’s founder, the disgraced doomsday televangelist Jim Bakker, said in a May 2018 sermon. “Did you know people from the government, from NASA, research from so many of them, they have said in their research, the safest place to live in troubled times is right here?”  

Read more at The Daily Beast.

Mercury is mostly iron, which may be because a series of close encounters with a young Venus billions of years ago stripped away its rocky outer layers

An unusually round and symmetrical deposit on Mars may be the result of an impact that popped the surface of the planet, causing a volcanic eruption less than 200,000 years ago

Faraway galaxies have been spotted unexpectedly flashing up to 100 times their usual brightness, and it seems to be caused by eddies in Earth’s atmosphere

Robots that can control puppets could one day learn to manipulate complex physical objects like clothing and flexible sheets

You won’t get skunked this week with a full-fledged RPGCast! We dissect the recent Nintendo Direct (BOWSER IS TAKING OVER), discuss our Now Playing (with a love-hate CompileHeart relationship), and have a heavy dose of fun feedback.

"Fortnite" Party Royale had another big show on May 8. Here's everything you need to know about the Dillion Francis, Steve Aoki and deadmau5 concert that just took place.

Rahul Gandhi seems to have descended into a spiral of far Left, subversive standpoint since Narendra Modi swept to power at the Centre and the Congress started losing state after state.

Coffee has been linked to changes on our DNA that affect how active certain genes are. The finding may help explain some of coffee's touted health benefits

Once the coronavirus pandemic is over, we must work out how to stop the spread of poor information that has helped make a bad situation that much worse

Kylian Mbappe and Neymar Jr's friendship is not limited to Paris Saint Germain but also off the field. The recent example of the same could be the French footballer's recent post on social media. Mbappe posted a picture of himself on social media where he was seen playing basketball. This was quite an ideal opportunity for Neymar Jr to pull his teammate's leg and he hilariously trolled the footballer with a funny comment.

The Portuguese midfielder is settling into life in east London well after his loan move.

We test the most powerful, core-laden desktop CPU ever.

Mercury-nominated UK rapper, Ty, has died aged only 47 after contracting coronavirus.

Netflix’s hit Action-Drama Extraction is reportedly getting a sequel. Writer...

The post Extraction 2 Is Officially Happening And Will Likely See Chris Hemsworth Return appeared first on Man's World India.

President Obama on Friday reacted to the Justice Department’s move to end its case against Michael Flynn by declaring that the “rule of law is at risk” -- as new details emerge about what the former president knew about the case against Flynn in the last days of his administration.

Joe Biden's campaign is gaining the support of key progressive groups to unite the party's factions.

Trump has long railed against the Postal Service, saying the agency has been swindled by e-commerce giants like Amazon.

OKLAHOMA CITY (AP) - A former lobbyist and Republican legislator was tapped Friday to head up a new state agency created by the Legislature last year to oversee agency spending.

The Legislative Office of Fiscal Transparency Oversight Committee selected Mike Jackson to serve as the agency's first executive director. The ...

A roundup of some of the most popular but completely untrue stories and visuals of the week. None of these are legit, even though they were shared widely on social media. The Associated Press checked them out. Here are the facts:

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CLAIM: Photo shows Joe Biden posing with former ...

The moves would clear the way for an appeal to the United States Court of Appeals for the Ninth Circuit.

The UFC comeback event on Saturday will feature one less match up after middleweight fighter Jacaré Souza tested positive for coronavirus. 

The UFC comeback event on Saturday will feature one less match up after middleweight fighter Jacaré Souza tested positive for coronavirus. 

Astronomers have more places to look for signs of intelligent life and more advanced tools to find it

The containment practices of outbreaks past could have lessons for modern epidemics

The SARS-CoV-2 virus endures for days on plastic or metal but disintegrates soon after landing on copper surfaces. Here’s why

What lies inside the icy cavern seems more and more like a captive, rare animal, an Earth form that might soon be lost

Researchers analyzed patient data from 10 countries. The team found a correlation between low vitamin D levels and hyperactive immune systems. Vitamin D strengths innate immunity and prevents overactive immune responses. The finding could explain several mysteries, including why children are unlikely to die from COVID-19.

At an outer suburban manufacturing plant, engineer Byron Kennedy is resetting a machine to spray-print a layer of copper on to a door handle, aiming to use the metal's antiviral properties to counter the threat of the COVID-19 pandemic.

Read our live updates on coronavirus HERE Coronavirus: The symptoms

Coronavirus: the symptoms Read our LIVE updates on the coronavirus here

Read our live updates on coronavirus HERE Coronavirus: The symptoms

Read our live coronavirus updates HERE Coronavirus: The symptoms

Read our live coronavirus updates HERE Health Secretary said his 'heart goes out' to the families of NHS workers killed during outbreak Facing backlash for calling protective equipment for healthcare workers a 'precious resource' Sir Keir Starmer waded into row, calling Mr Hancock's comments 'insulting'

Read our live coronavirus updates HERE Coronavirus: The symptoms

Read our live coronavirus blog HERE