Kids Helping Kids Is Universal - But Cultures Help Differently
A simple game reveals a universal instinct in kids
A simple game reveals a universal instinct in kids
In the most famous versions of Richard III, written by William Shakespeare, the last Plantagenet king was physically and mentally deformed.
But the public probably did not know what, and if they did, they wisely never mentioned it. A king busy fighting the War of the Roses could easily hide a deformity. Dr. Mary Ann Lund, of the University of Leicester's School of English argues that Richard's body image in life was carefully controlled and he probably kept any signs of his scoliosis hidden outside of the royal household - but after his death at the Battle of Bosworth, he was carried to Leicester and exhibited before being buried and it wasn't a secret after that.
A new study demonstrates that macrophages can effectively substitute for so-called dendritic cells as primers of T-cell-dependent immune responses. They instead stimulate a broader-based response.The immune response, the process by which the adaptive immune system reacts to, and eliminates foreign substances and cells, depends on a complex interplay between several different cell types. So-called dendritic cells, which recognize and internalize invasive pathogens, play a crucial role in this process.
Stone tools, shaped by striking a stone "core" with a piece of bone, antler, or another stone, provide some of the most abundant evidence of human behavioral change over time. Simple Oldowan stone flakes are the earliest things considered tools, dating back 2.6 million years, and the Late Acheulean hand axe goes back 500,000 years. While it's relatively easy to learn to make an Oldowan flake, the Acheulean hand axe is harder to master, due to its lens-shaped core tapering down to symmetrical edges.
Though some studies have linked icebergs to abrupt climate change cycles during the last glacial period - by introducing fresh water to the surface of the ocean and changing ocean currents, which changes climate - new findings present a contradictory narrative and suggest that icebergs generally arrived too late to trigger marked cooling across the North Atlantic.Abrupt climate change, characterized by transitions between warm and cold conditions across the North Atlantic, is a pervasive feature of the Late Pleistocene - the most recent period of repeated glacial cycles.
Thermoluminescence is used on sediment 'grains', which function as natural radiation dosimeters when buried with defects or impurities, to determine age. The valid range is 1,000 to 500,000 years and the technique is used extensively in archeology and earth sciences to date artifacts and rocks.
E-cigarettes, battery-powered devices that heat a liquid nicotine solution, have been sold in the United States since 2007 and are marketed as an option to help smokers kick the habit. Instead of a nicotine patch or chewing gum, e-cigarette users inhale the vapor.It's obviously safer than smoking but anti-cigarette advocates in the United States of America are also against this 'vaping' because of the presence of cigarette companies as investors. Originally, smoking awareness was to get people to get rid of smoking but a campaign against a smoking cessation product means it is more of a desire to get rid of certain companies.
A systematic review of the genomes of patients with ALK-negative anaplastic large cell lymphoma (ALCL), a particularly aggressive form of non-Hodgkin's lymphoma, shows that many cases of the disease are driven by alterations in the JAK/STAT3 cell signaling pathway. The study also demonstrates, in mice implanted with human-derived ALCL tumors, that the disease can be inhibited by compounds that target this pathway, raising hopes that more effective treatments might soon be developed.
A team of astronomers studied the simultaneous collision of four galaxies in the galaxy cluster Abell 3827 and could trace out where the mass lies within the system and compare the distribution of the dark matter with the positions of the luminous galaxies.
Although dark matter cannot be seen, the team could deduce its location using a technique called gravitational lensing. The collision happened to take place directly in front of a much more distant, unrelated source. The mass of dark matter around the colliding galaxies severely distorted spacetime, deviating the path of light rays coming from the distant background galaxy -- and distorting its image into characteristic arc shapes.
A remote gas planet has been detected about 13,000 light-years away, making it one of the most distant planets known.The Poland-based Optical Gravitational Lensing Experiment (OGLE) Warsaw Telescope at the Las Campanas Observatory in Chile scans the skies for planets using a method called microlensing. A microlensing event occurs when one star happens to pass in front of another, and its gravity acts as a lens to magnify and brighten the more distant star's light. If that foreground star happens to be orbited by a planet, the planet might cause a blip in the magnification. For a new study in Astrophysical Journal the researchers combined that with data from NASA's Spitzer Space Telescope.
Like virtual water and virtual emissions, looking at organic food through a prism of implicit benefits translated into estimated dollars makes it look a lot more economically viable than it otherwise might appear.The new estimate says that organic farming systems do a better job of capitalizing on nature's services than they are credited with, and natural processes that aid farming and that can substitute for costly fossil fuel-based inputs are cost-effective.
A new study has found that after just five days of eating a high-fat diet, the way in which the body's muscle processes nutrients changes.When food is eaten, the level of glucose in the blood rises. The body's muscle is a major clearinghouse for this glucose. It may break it down for energy, or it can store it for later use. Since muscle makes up about 30 percent of our body weight and it is such an important site for glucose metabolism, if normal metabolism is altered, it can have consequences on the rest of the body and can lead to health issues.
By identifying and comparing the sequences of more than 400 receptors in the genomes of two fruit flies and three mosquito species, entomologists have unlocked one of the hormonal mechanisms that allow mosquitoes to produce eggs. They identified a single gene for a receptor with an unknown function within the species distribution.