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> This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. --Boundary_(ID_AP2vitHCyagJaSmZmr+M0g) Content-type: text/plain; charset=ISO-8859-1 Content-transfer-encoding: quoted-printable Note the third item below, from Saturday's Herald on the Science page of Living section, a lecture Monday night at the N.S. Museum of Nat. Hist. at 7:30 p.m. Cheers from Jim in Wolfville ------------------------- Subject: 4500-yr.-old arrowhead, Eric Mills lecture on marine biology, cognitive decline & folic acid Chronicle Herald, Sat., Feb. 3, 2007 =20 Science in brief Cape Breton arrowhead may be 4,500 years old SYDNEY (CP) =97 A Mi=92kmaq arrowhead discovered in the Cape Breton Highlands tells archeologist Roger Lewis a story that began thousands of years ago. Lewis, an archeological researcher for Kwilmuk Maw-klusuaqn, Mi=92kmaq Rights Initiative, says the arrowhead is of a type used about 4,500 years ago. Looking at an artifact that old can be a moving experience for Lewis, who i= s from Indian Brook First Nation. "It=92s a humbling experience," he said. "I am impressed by their technological skill at that time. I think it was quite skilful to have manufactured a functional tool out of available raw materials. "It=92s fascinating."=20 The story of the arrowhead and Lewis=92s analysis of it is told in the winter 2007 issue of the UINR Marten, a newsletter of the Unama=92ki Institute of Natural Resources which can be read at www.uinr.ca/news <http://www.uinr.ca/news> . Feature writer Clifford Paul says in the newsletter that a Mi=92kmaq moose hunter from the Annapolis Valley found the arrowhead five years ago near a tributary of Indian Brook in the Cape Breton Highlands. Lewis refers to the arrowhead as a "contracting stem projectile point" similar to technology used during an era known as the Maritime Archaic Period, which dates from 5,000 to 3,500 years in the past. A Mi=92kmaq hunter of the era was likely following a brook into the highlands= , he said.=20 "It would probably be early to say whether there were significant populations (of Mi=92kmaq) up there, but I think the highlands would have bee= n just as valued a resource area as any coastal or interior lake system," Lewis explained.=20 "It=92s quite a treat to actually discover its presence in the highlands." Lewis said the arrowhead is "pretty consistent" with rhyolite from Ingonish Island which has been found through Cape Breton, Antigonish and Pictou. "It was exciting because it was probably the first projectile point that wa= s located in that area =97 the oldest and the only one I know of to date that has been found in that part of the highlands." ------------------------ Halifax lecture to focus on marine biology's roots Ever wonder what inspired scientists to start studying the ocean? Then check out a free public lecture Monday night at the Nova Scotia Museum of Natural History in Halifax. Eric Mills, a professor at Dalhousie University and the University of King'= s College, will discuss the roots of marine science in Canada in what a news release describes as an "extensively illustrated talk." Presented by the Nova Scotian Institute of Science, the lecture is called Learning from Europe: How Canadian Marine Science Took a New Direction Before World War Two. "There is a much more complex and personal story to be told of how the marine sciences took the shape they did in Canada," the release says. The educational event starts at 7:30 p.m. in the auditorium at the museum, at 1747 Summer St. ---------------------- Age-related cognitive decline aided by folic acid Folic acid dietary supplements significantly improve thinking skills that tend to decline with normal aging, a Dutch study has found. Researchers randomly assigned 818 men and women ages 50 to 70 to take a daily oral dose of 800 micrograms of folic acid or a placebo. All the subjects, who were otherwise healthy, had elevated blood levels of homocysteine, which has in previous studies been associated with poor cognitive performance. All the subjects took five tests of mental functioning. At the beginning of the study, there was no significant difference in the scores between the groups. But at the end, after controlling for cholesterol, blood pressure, body mass, smoking status and other variables, the folic acid group performed significantly better on three of the five mental tests, and their average for all tests was significantly higher. Although the lead author, Jane Durga, affirmed that the study was carefully randomized and controlled, she said, "Based on this paper alone, I wouldn=92t be waving it around" to urge people to supplement their diets. She said the issue needs more study, particularly in areas like the U.S., where flour is fortified with folic acid. --Boundary_(ID_AP2vitHCyagJaSmZmr+M0g) Content-type: text/html; charset=ISO-8859-1 Content-transfer-encoding: quoted-printable <HTML> <HEAD> <TITLE>Eric Mills lecture on marine biology, Monday, 7:30 p.m., N.S. Museum= of Nat Hist.</TITLE> </HEAD> <BODY> <BR> Note the third item below, from Saturday's Herald on the Science page of Li= ving section, a lecture Monday night at the N.S. Museum of Nat. Hist. at 7:3= 0 p.m.<BR> <BR> Cheers from Jim in Wolfville<BR> -------------------------<BR> <B>Subject: </B>4500-yr.-old arrowhead, Eric Mills lecture on marine biolog= y, cognitive decline & folic acid<BR> <BR> <FONT SIZE=3D"2"><FONT FACE=3D"Arial">Chronicle Herald, Sat., Feb. 3, 2007<BR> </FONT></FONT> <BR> Science in brief<BR> <BR> <BR> <B>Cape Breton arrowhead may be 4,500 years old</B> <BR> <BR> SYDNEY (CP) =97 A Mi=92kmaq arrowhead discovered in the Cape Breton Highlands t= ells archeologist Roger Lewis a story that began thousands of years ago. <BR= > <BR> Lewis, an archeological researcher for Kwilmuk Maw-klusuaqn, Mi=92kmaq Rights= Initiative, says the arrowhead is of a type used about 4,500 years ago. Loo= king at an artifact that old can be a moving experience for Lewis, who is fr= om Indian Brook First Nation. <BR> <BR> "It=92s a humbling experience," he said. "I am impressed by th= eir technological skill at that time. I think it was quite skilful to have m= anufactured a functional tool out of available raw materials. "It=92s fas= cinating." <BR> <BR> The story of the arrowhead and Lewis=92s analysis of it is told in the winter= 2007 issue of the UINR Marten, a newsletter of the Unama=92ki Institute of Na= tural Resources which can be read at www.uinr.ca/news <http://www.uinr.ca= /news> . <BR> <BR> Feature writer Clifford Paul says in the newsletter that a Mi=92kmaq moose hu= nter from the Annapolis Valley found the arrowhead five years ago near a tri= butary of Indian Brook in the Cape Breton Highlands. <BR> <BR> Lewis refers to the arrowhead as a "contracting stem projectile point&= quot; similar to technology used during an era known as the Maritime Archaic= Period, which dates from 5,000 to 3,500 years in the past. <BR> <BR> A Mi=92kmaq hunter of the era was likely following a brook into the highlands= , he said. <BR> <BR> "It would probably be early to say whether there were significant popu= lations (of Mi=92kmaq) up there, but I think the highlands would have been jus= t as valued a resource area as any coastal or interior lake system," Le= wis explained. <BR> <BR> "It=92s quite a treat to actually discover its presence in the highlands= ." <BR> <BR> Lewis said the arrowhead is "pretty consistent" with rhyolite fro= m Ingonish Island which has been found through Cape Breton, Antigonish and P= ictou. <BR> <BR> "It was exciting because it was probably the first projectile point th= at was located in that area =97 the oldest and the only one I know of to date = that has been found in that part of the highlands."<BR> ------------------------<BR> <B>Halifax lecture to focus on marine biology's roots</B> <BR> <BR> Ever wonder what inspired scientists to start studying the ocean? <BR> <BR> Then check out a free public lecture Monday night at the Nova Scotia Museum= of Natural History in Halifax. <BR> <BR> Eric Mills, a professor at Dalhousie University and the University of King'= s College, will discuss the roots of marine science in Canada in what a news= release describes as an "extensively illustrated talk." <BR> <BR> Presented by the Nova Scotian Institute of Science, the lecture is called L= earning from Europe: How Canadian Marine Science Took a New Direction Before= World War Two. <BR> <BR> "There is a much more complex and personal story to be told of how the= marine sciences took the shape they did in Canada," the release says. = <BR> <BR> The educational event starts at 7:30 p.m. in the auditorium at the museum, = at 1747 Summer St.<BR> ----------------------<BR> <B>Age-related cognitive decline aided by folic acid</B> <BR> <BR> Folic acid dietary supplements significantly improve thinking skills that t= end to decline with normal aging, a Dutch study has found. <BR> <BR> Researchers randomly assigned 818 men and women ages 50 to 70 to take a dai= ly oral dose of 800 micrograms of folic acid or a placebo. All the subjects,= who were otherwise healthy, had elevated blood levels of homocysteine, whic= h has in previous studies been associated with poor cognitive performance. <= BR> <BR> All the subjects took five tests of mental functioning. At the beginning of= the study, there was no significant difference in the scores between the gr= oups. But at the end, after controlling for cholesterol, blood pressure, bod= y mass, smoking status and other variables, the folic acid group performed s= ignificantly better on three of the five mental tests, and their average for= all tests was significantly higher. <BR> <BR> Although the lead author, Jane Durga, affirmed that the study was carefully= randomized and controlled, she said, "Based on this paper alone, I wou= ldn=92t be waving it around" to urge people to supplement their diets. <B= R> <BR> She said the issue needs more study, particularly in areas like the U.S., w= here flour is fortified with folic acid. <BR> <BR> <BR> </BODY> </HTML> --Boundary_(ID_AP2vitHCyagJaSmZmr+M0g)--
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