This website has five great astronomy activities! By engaging in these activities, you can learn about the Milky Way Galaxy, the Sun, the Big Dipper, and stars!

This informational text explore adaptations that allow penguins, whales, walruses, seals, and fish to live in the cold water of the Arctic and Southern Oceans. The text is at a reading level appropriate for second through third grade. This version is a full-color pdf file that can be printed, cut, and folded to form a book. Each book contains color photographs and illustrations.

Exhibit poster showing two scenes "At work again" and "Back to the farm" in which men using "working protheses" perform manual labor in a woodworking shop and on a farm. Poster caption: Physical handicaps are made up for so far as possible by modern artificial appliances - "Working prostheses" they are called - which replace the missing limb. Men in the mechanical trades are fitted with chucks in which can be fitted interchangeably the various tools of their calling. Exhibit of the Red Cross Institute for Crippled and Disabled Men and the Red Cross Institute for the Blind.

This is a figure from the 2007 IPCC Assessment Report 4 on atmospheric concentrations of carbon dioxide, methane and nitrous oxide over the last 10,000 years (large panels) and since 1750 (inset panels).

This is a photo essay linked to a New York Times story about climate-related stressors on forests -- including mountain pine beetles, forest fires, forest clearance, and ice storms -- and the importance of protecting forests as an important carbon sink.

Une image qui décrit la différence entre deux verbes souvent confus: attendre et assister.

Poster showing cavalry in battle, with horses reacting to an explosion in the foreground. Poster no. 84. Title from item.

This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:

"Worldwide, today's stakeholders are concerned with more than shareholder value They care about a firm’s carbon footprint the production of safe and healthy products and suppliers that respect regulations and ethical principles For that reason, firms started issuing corporate social responsibility (CSR) reports, and audit firms now provide CSR assurance services That begs the question: Should firms use the same audit firm to perform both CSR assurance and financial audits? Or seek a different CSR assurance provider altogether? Researchers recently weighed in by analyzing more than 28,000 firm-year observations from 55 countries They discovered that audit firms offering CSR assurance + financial audits obtain more information about CSR risks than firms providing financial audits only Joint-service audit firms deliver better audit quality and make fewer Type II going concern errors have clients that book larger environmental and litigation provisions are less likely to provide income-decreasing restatements an.."

The rest of the transcript, along with a link to the research itself, is available on the resource itself.

This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:

"Accurate identification of medical alarm sounds can be life-saving, but current standard alarms are difficult to learn. One issue is that these alarms, despite having different melodies, possess highly similar tonal qualities. This makes it hard to distinguish, for example, an alarm indicating an abnormal heart rate from one denoting abnormal oxygen saturation. To ease interpretation, researchers have developed new auditory icon alarms. These real-world sounds are associated with the processes they represent, such as the sound made by pills rattling in a bottle to indicate a drug administration issue or the sound of assisted breathing to denote abnormal ventilation parameters. The intuitive reaction to such sounds should make the icon alarms easier to identify than standard alarms, creating new possibilities to improve patient safety. The team tested the usability of the icons in a simulated intensive care unit..."

The rest of the transcript, along with a link to the research itself, is available on the resource itself.

The National Union Convention met in Philadelphia in August 1866 to create a political party that would back President Andrew Johnson's Reconstruction program and to elect a new Congress. Here, the convention is portrayed as a gathering of muzzled dogs, their collars inscribed with state names, who file toward a large doghouse, the "Wigwam." Except for the unwelcome arrival of Copperheads or Peace Democrats Fernando Wood and C. L. Vallandigham, the meeting was surprisingly harmonious even with the participation of representatives from both North and South. Here two dogs, "Massachusetts" and "South Carolina," side by side, lead the pack toward the Wigwam. Wood and Vallandigham are portrayed as cats, each held by the scruff of its neck by guard dogs Edgar Cowan and J. R. Doolittle. At bottom left stands a dog with a brush and a pail marked "N.Y. Times" tied to its tail. In the background "The Dead Dog of The White House," incumbent Andrew Johnson, lies in the road in front of the presidential mansion, which flies from its roof an American flag labeled "My Policy." "My Policy" was Johnson's campaign catchword. The Philadelphia movement ultimately failed, and anti-Johnson Republicans achieved more than a two-thirds majority in both houses of Congress. |Title appears as it is written on the item.|Weitenkampf, p. 154.|Forms part of: American cartoon print filing series (Library of Congress)|Published in: American political prints, 1766-1876 / Bernard F. Reilly. Boston : G.K. Hall, 1991, entry 1866-4.

Poster shows a kangaroo in front of number 50,000 and in background silhouette of soldiers in battle. Title from item.

Poster shows quote from General Sir Ian Hamilton, commander-in-chief of the British Mediterranean Expeditionary Force at Gallipolli; in background, the British flag. Title from item.

This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:

"Ischemic heart disease is a narrowing of the arteries that supply blood and oxygen to the heart. Caused by a build-up of plaque, this restricted blood flow, or ischemia, can cause chest pain and heart attacks, and is among the leading causes of death worldwide. Increasingly, physicians are looking to use MRI to visualize and measure the extent and severity of ischemia. This technique involves the injection of a contrast agent into a blood vessel in the arm. MRI is then used to create a series of images of the heart as the agent is delivered to the muscle, allowing physicians to visualize regions receiving inadequate blood flow. Images are acquired both at rest and during the “stress” induced by giving the patient a drug that increases blood flow to the heart as would occur during exercise. The utility of this approach, however, has been hindered by a lack of objective evaluation methods and the time-consuming task of processing the results in a laboratory setting..."

The rest of the transcript, along with a link to the research itself, is available on the resource itself.

This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:

"Many older patients experience a kind of ‘brain fog’ following surgery, in which cognition is impaired from lingering effects of anesthesia. It’s temporary, but can still be disruptive. Now, there is early evidence that one way to prevent such problems is to automate more aspects of anesthetic management during surgery. That’s the preliminary finding from a new randomized controlled trial appearing in the journal Anesthesiology. Researchers at a hospital in Belgium tested whether automating three aspects of anesthetic management -- anesthetic depth, cardiac blood flow, and protective lung ventilation -- improved performance on cognitive tests post-op, compared to when an anesthesiologist is in manual control. Going in, the idea was that machines could do an even better job than humans at keeping parameters within the recommended ranges, and this might lead patients to have less post-op cognitive impairment..."

The rest of the transcript, along with a link to the research itself, is available on the resource itself.

In this 1949 photo from the National Archives an automobile is shown with a man on horseback.

The peripheral nervous system found in most domestic species can be segregated into three sub-systems; the sensory system, the somatic motor system and the autonomic system. The autonomic nervous system (ANS) regulates the internal environment of the body including factors such as body temperature, blood pressure and concentrations of many substances. The ANS is also responsible for mobilising the body's resources during stressful situations. The ANS controls gland cells, cardiac muscle cells and smooth muscle cells. Control of this nervous system is involuntary and regulation is via autonomic reflexes. The autonomic reflex arc system is very similar to that of the somatic motor system, i.e. there are sensory (afferent) nerve fibres, an information integration centre, motor (efferent) fibres and effector cells. Any levels of increased activity within the autonomic nervous system can result in both stimulation or inhibition of effector cells, although it is only the efferent part of the reflex arc that is actually considered autonomic.

Again partisan bitterness, over the perceived Whig betrayal of Henry Clay's hopes for the presidential nomination and over subsequent efforts to obtain Clay's endorsement of Zachary Taylor's candidacy, is vented in this scene. The "available" label is applied in a pejorative sense, suggesting a party whose choice of a candidate was guided not by principles but by public image or popularity. Henry Clay is seated at a desk before three men who present him with a document that reads: "MR. CLAY, we have called on you to humbly request that you will state to your Friends, that you approve of the Philadelphia Convention, and that you Endorse General Taylor as a good Whig." William V. Brady, former mayor of New York City, stands closest to Clay and explains, "Mr. Clay while I was Mayor of the City of New York I used all the Influence I had to have you nominated, you have always been my first choice." Seated in a chair at far right is Senator John J. Crittenden, who urges Brady to tell Clay ". . . that he was our first Choice." Standing next to Brady, holding the endorsement document, is James Watson Webb, publisher of the New York "Courier & Enquirer. " He warns, "hold your tounge [sic] Crittenden you will ruin every thing." Clay responds to their request, "Gentlemen I cannot endorse a note that the drawer himself has not signed," a cunning reference to Taylor's well-known reluctance to specifically commit himself to Whig principles. Portraits of George Washington and Thomas Jefferson hang on the wall behind Clay. |Drawn by "W.J.C."|Entered . . . 1848 by H.R. Robinson.|Published by H.R. Robinson 31, Park Row directly opposite the Park Fountain, adjoining Lovejoys Hotel.|Title appears as it is written on the item.|Weitenkampf, p. 93.|Forms part of: American cartoon print filing series (Library of Congress)|Published in: American political prints, 1766-1876 / Bernard F. Reilly. Boston : G.K. Hall, 1991, entry 1848-23.

The impact of natural disasters is made vivid in this video segment adapted from NOVA. A small town in Iceland, prepared for recurrent avalanches, is devastated when one takes a new and damaging path.