Your bones have little molecular springs in them that unwind and keep the collagen fibrils “glued” together when stress threatens a fracture. See the description, with electron micrographs and diagrams, in a press release from UC Santa Barbara. Said co-author Daniel Morse, director of UCSB’s Institute for Collaborative Biotechnologies: “It’s especially exciting for us to find the profound medical significance of our discoveries for human bone.” He described the discovery of “molecular shock absorbers” providing a kind of self-healing glue holding biological mineralized structures together when studying the abalone shell six years ago. “It’s truly remarkable to find the same fundamental mechanisms operating in bone,” said Morse. He noted that these mechanisms give young healthy bone its tremendous resiliency and resistance to fracture, and actually help heal small microcracks soon after they’re formed. (Emphasis added in all quotes.)(For a related story on marine shells, see 07/26/2004 entry.) Paul Hansma, physicist at UCSB, noted that while a paper on bone is published every six minutes, little is known about how it works at the molecular level. New techniques like atomic force microscopy are allowing scientists to see these tiny molecular structures for the first time. The UCSB paper has achieved the highest resolution images of bone ever published. Since these safety mechanisms work well in young healthy bone, the new findings may help medical researchers find ways to overcome skeletal problems that often come with aging, including bone brittleness and osteoarthritis.Since no evolutionists believe people evolved from abalones, their only recourse is to wave the magic wand of convergent evolution to explain built-in molecular shock absorbers. Remember that improbabilities are multiplicative, not additive – and so are credulities. This story illustrates a difference between living and non-living objects. In general, the closer you look at an inanimate object, like a rock, the simpler it appears. For living structures, the complexity keeps apace with the magnification. Some of the most amazing aspects have been invisible to human perception till recently. If macroscopic things like an eye gave Darwin cold shudders, he could never have been prepared for the view under the atomic force microscope. Let’s hope his shock absorbers are in good working order as we envision him collapsing in a dead faint.(Visited 11 times, 1 visits today)FacebookTwitterPinterestSave分享0
Facebook Twitter Google+LinkedInPinterestWhatsAppProvidenciales, 09 Feb 2015 – The Hon Dr. Rosita Butterfield is laid to rest now, the country’s first woman elected to parliament on the PNP ticket for the constituency of Kew in North Caicos. She was and is a woman who many now know grew through education and politics and business and philanthropic endeavors to be considered a wealthy Turks and Caicos Islander. Current House Speaker, Hon Robert Hall reminded us at the State Funeral last week that it was not always the case; Rosie came from very humble beginnings. “Even after she was married, you may have heard the son speak about coming to Turks and Caicos, living in a trailer – a number of them – and living in a one bedroom. So when one looks at the vast empire they have today, some people think it was always that way, but with their sweat, blood, tears, dedication they really achieved great heights.”Dr. Rosita Butterfield was 78 years old when died on January 10, 2015. Facebook Twitter Google+LinkedInPinterestWhatsApp Olive branch extended by Opposition Leader, says it is time for Turks and Caicos leaders to unite Recommended for you TCI Country Leaders condemn vicious memes Related Items:Dr. Rosita Butterfield, Kew, North caicos, pnp, robert hall, state funral Opposition Leader responds to Throne Speech 11 days later; says PDM Govt plan puts TCI in ‘deep doo doo’
Facebook Twitter Google+LinkedInPinterestWhatsApp#Bahamas, August 11, 2017 – Nassau – Tourism and Aviation Minister, Dionisio D’Aguilar says he is trying to save $1m a year at the ministry with the layoff of mainly recently recruited staff. The Minister said 22 people were hired within weeks leading up to the General Elections and that the new hires would cost the country some $750,000 in salaries.Speaking to media about the layoffs, Minister #D’Aguilar explained, “… we are mindful of the fact that people need jobs but we also must be mindful of the fact that the core mission of the Ministry of Tourism is to grow the overall visitor count or the total number of stopover visitors to our country and therefore they bring significant spend to the country and create economic opportunities. You don’t grow employment by the government hiring more people, you want the private sector to grow and thereby hire more people, that’s the route you need to take.”It was reported that last week 11 people in Grand Bahama were made redundant and that in July 12 people were recalled to Nassau as Tourism combined its Washington, DC and Los Angeles offices with New York and Houston. The minister accused the Christie Administration of gross spending just before the election and shared, that there were 260 employees when former Minister of Tourism Obie Wilchcombe assumed office in 2012, five years later the staff ballooned by 155% to 403 people.#MagneticMediaNews Facebook Twitter Google+LinkedInPinterestWhatsApp Related Items:#D’Aguilar, #magneticmedianews
MOON MOONSET: 8:29PM MOONRISE: 8:31AM WED. TIDESLOW TIDE: 3:02PM 3:36AM WEDHIGH TIDE: 9:15PM 9:38AM WEDWEATHER OUTLOOK: PARTLY CLOUDY AND HOT WITH WIDELY SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.TROPICAL WEATHER OUTLOOK:DISORGANIZED SHOWERS AND THUNDERSTORMS OVER THE YUCATAN PENINSULA AND ADJACENT WATER AREAS ARE ASSOCIATED WITH THE REMNANTS OF HARVEY. ENVIRONMENTAL CONDITIONS ARE EXPECTED TO BE CONDUCIVE FOR DEVELOPMENT WHEN THE SYSTEM MOVES OVER THE BAY OF CAMPECHE TONIGHT, AND A TROPICAL DEPRESSION IS EXPECTED TO FORM OVER THE SOUTHWESTERN GULF OF MEXICO ON WEDNESDAY OR THURSDAY…THIS SYSTEM HAS A 90% FORMATION CHANCE THROUGH THE NEXT 5 DAYS. Facebook Twitter Google+LinkedInPinterestWhatsApp#Bahamas, August 22, 2017 – Nassau –GENERAL SITUATION: THE NORTHERN PORTION OF A TROPICAL WAVE PRODUCES SOME UNSETTLED WEATHER ACROSS MOST OF THE SOUTHEAST BAHAMAS…WHILE A SURFACE TROUGH INFLUENCES WEATHER OVER THE NORTHERN ISLANDS.SPECIAL WARNINGS: …MARINERS SHOULD CONTINUE TO BE ALERT FOR THE POTENTIAL OF WATERSPOUTS……BEACHGOERS AND MARINERS SHOULD ALSO BE ALERT FOR THE HIGH RISK OF RIP CURRENTS ESPECIALLY ALONG NORTHERN AND EASTERN SHORELINES IN THE SOUTHEAST BAHAMAS…NORTHWEST BAHAMAS WEATHER: PARTLY CLOUDY, HOT AND HUMID WITH ISOLATED SHOWERS AND THUNDERSTORMS THROUGH TONIGHT.ADVISORY: …EXPECT GUSTY WINDS AND HIGHER SEAS IN OR NEAR HEAVY SHOWERS OR THUNDERSTORMS…WINDS: EAST TO SOUTHEAST AT 10 TO 15 KNOTS OVER OPEN WATERS.SEAS: 2 TO 4 FEET OVER THE OCEAN.CENTRAL & SOUTHEAST BAHAMASWEATHER: MOSTLY CLOUDY AND A BIT BREEZY WITH SCATTERED SHOWERS AND THUNDERSTORMS.ADVISORY: A SMALL CRAFT CAUTION IS IN EFFECT FOR THE SOUTHEAST BAHAMASWINDS: EAST TO SOUTHEAST AT 15 KNOTS OVER OPEN WATERS IN THE CENTRAL BAHAMAS…& 15 TO 20 KNOTS IN THE SOUTHEAST BAHAMAS.SEAS: 3 TO 5 FEET OVER THE OCEAN IN THE CENTRAL BAHAMAS…& 4 TO 6 FEET IN THE SOUTHEAST BAHAMAS.DAYTIME HIGH TEMPERATURE 91 °F 33 °C HEAT INDEX °F °COVERNITE LOW TEMPERATURE 79 °F 26 °C WIND CHILL °F °C SUN SUNSET: 7:38PMSUNRISE: 6:47AM WED Facebook Twitter Google+LinkedInPinterestWhatsApp SHOWER ACTIVITY ASSOCIATED WITH A BROAD TROUGH OF LOW PRESSURE NEAR THE NORTHWESTERN BAHAMAS REMAINS LIMITED. ANY DEVELOPMENT OF THIS SYSTEM DURING THE NEXT FEW DAYS SHOULD BE SLOW TO OCCUR WHILE IT MOVES WEST-NORTHWESTWARD. ENVIRONMENTAL CONDITIONS COULD BECOME A LITTLE MORE CONDUCIVE FOR DEVELOPMENT BY THE WEEKEND. THIS SYSTEM HAS A 30% CHANCE OF FORMATION DURING THE NEXT 5 DAYS.FORECASTER: K. WARD-FORBES/AA Related Items:
Related Items: Facebook Twitter Google+LinkedInPinterestWhatsApp#Bahamas, August 28, 2017 – Nassau – The Ministry of Foreign Affairs wishes to advise the travelling public applying for visas at The Bahamas Embassy in Port-au-Prince, Haiti, that, with immediate effect, temporary measures have been put in place regarding the issuance of visas by the Embassy. This was necessary due to technical constraints.While the temporary measure may initially result in minor delays, the Ministry wishes to assure the public that every effort will be made to process applications in a timely manner. All other functions of the Embassy will continue uninterrupted. The Ministry will advise the public in due course when the Embassy resumes its normal visa issuing function. The Ministry of Foreign Affairs apologises for any inconvenience caused. Facebook Twitter Google+LinkedInPinterestWhatsApp
Tags Netflix has addressed a study looking at teen suicide and its show 13 Reasons Why. Justin Sullivan / Getty Images On the heels of a study exploring a rise in teen suicide among boys following the Netflix show 13 Reasons Why in 2017, the streaming service says it’s looking into the research.”This is a critically important topic and we have worked hard to ensure that we handle this sensitive issue responsibly,” Netflix said.The study, out Monday from the Journal of the American Academy of Child and Adolescent Psychiatry, found that the suicide rate among boys 10-17 increased in the month after the show came out. The study didn’t confirm whether any of those boys had watched the show.”The release of 13 Reasons Why was associated with a significant increase in monthly suicide rates among US youth aged 10 to 17 years,” the study concludes. “Caution regarding the exposure of children and adolescents to the series is warranted.” Netflix said the research is at odds with another recent study, this one conducted by the University of Pennsylvania. “We’ve just seen this study and are looking into the research, which conflicts with last week’s study from the University of Pennsylvania,” a spokesperson said by email. That study found that “viewers who stopped watching the second season exhibited greater suicide risk and less optimism about the future than those who continued to the end.” The study went on to say that those who watched to the end reported a decline in “suicide ideation and self-harm.” They also might be more likely to help a suicidal person. The premise of 13 Reasons Why related to the suicide of a teenage girl. In May 2017, Netflix said it would include an additional warning at the beginning of the first episode, as well as “strengthen the messaging and resource language in the existing cards for episodes that contain graphic subject matter, including the URL 13ReasonsWhy.info.”If you’re struggling with negative thoughts or suicidal feelings, here are 13 suicide and crisis intervention hotlines you can use to get help.You can also call these numbers:US: The National Suicide Prevention Lifeline can be reached at 1-800-273-8255. UK: The Samaritans can be reached at 116 123. AU: Lifeline can be reached at 13 11 14. 0 Post a comment Digital Media Wellness Share your voice Netflix
Narendra ModiIndian prime minister Narendra Modi is planning to visit Bangladesh to demonstrate New Delhi’s support to Dhaka in an election year, reports Indian English-language daily The Economic Times.The visit may take place by this June.Published on Sunday, the Indian newspaper article said Modi’s proposed visit to Bangladesh is critical as the Sheikh Hasina government hopes to clinch Teesta river water-sharing agreement.“Teesta pact will boost ruling Awami League’s popularity in a poll year,” the Times observed in a report titled “PM Modi plans Bangladesh, Nepal visit for regional push”.Meanwhile, India’s foreign secretary Vijay Gokhale could visit Dhaka in the near future to give further momentum to the “warm partnership”, the newspaper said quoting people aware of the matter.Modi may also visit Nepal and Bhutan as part of his government’s policy to focus on neighbourhood, according to the report.These visits, the Times added, are being planned amid China’s relentless push to make inroads into the Himalayan states and attempts to implement projects in Bangladesh under its Belt and Road Initiative (BRI).
By Sean Yoes, Baltimore AFRO Editor, email@example.comQuestions swirl around yet another American mass shooting, this time at a gaming tournament in Jacksonville, Fl., where the gunman from Baltimore killed two and wounded nine others before turning the gun on himself.According to CNN, David Katz, 24, attended the tournament Aug. 26 for competitive players of the Madden football video game. According to police, the Baltimore native used a handgun in the shooting, but they have not commented on a possible motive.Eli Clayton, 21, who went by the gaming handle of “Trueboy,” was one of two killed by David Katz, 24, of Baltimore before he turned the gun on himself. (Twitter Photo)Various media outlets are reporting that the two victims are Taylor Robertson, 27, of Ballard, West Virginia, and Eli Clayton, 22, of Woodland Hills, California.WBAL-TV reports that authorities have searched Katz’s family home in the upscale Federal Hill neighborhood of South Baltimore. Katz had reportedly been a student at the University of Maryland, where he majored in environmental science and technology, according to UM spokeswoman Katie Lawson. He had enrolled at the school in September 2014, was not registered for classes currently. According to UM, Katz did not live on campus. Reportedly the gunman’s father, Richard Katz, is an engineer who works at NASA in the Instrument Electronics Development Branch.Katz went by the gaming name “Bread,” according to other gamers, and had previously won Madden tournaments in 2017. Specifically, in February 2017, the Buffalo Bills tweeted out a picture of Katz after he won the Madden 17 Bills Championship and congratulated him. When asked about his gaming skills, Katz told Bills hall-of-famer Steve Tasker, “I think personally I’m one of the better players,” he said.
Strong magnetic fields discovered in majority of stars (Phys.org)—A team of astronomers led by Aurore Blazère of the Paris Observatory has discovered ultra-weak magnetic fields in metallic-line stars Beta Ursae Majoris and Theta Leonis. Motivated by a recent detection of a weak, circularly polarized signature in spectral lines of a similar type star, Sirius A, the researchers received a signal believed to be of a magnetic origin, using deep spectropolarimetric observations of these two peculiar stars. What they found may prove that weak magnetic fields could be more common in the photospheres of intermediate-mass stars. © 2016 Phys.org Explore further Journal information: arXiv More information: Detection of ultra-weak magnetic fields in Am stars: β UMa and θ Leo. arXiv:1601.01829 [astro-ph.SR] arxiv.org/abs/1601.01829AbstractAn extremely weak circularly polarized signature was recently discovered in spectral lines of the chemically peculiar Am star Sirius A. A weak surface magnetic field was proposed to account for the observed polarized signal, but the shape of the phase-averaged signature, dominated by a prominent positive lobe, is not expected in the standard theory of the Zeeman effect. We aim at verifying the presence of weak circularly polarized signatures in two other bright Am stars, beta UMa and theta Leo, and investigating the physical origin of Sirius-like polarized signals further. We present here a set of deep spectropolarimetric observations of beta UMa and theta Leo, observed with the NARVAL spectropolarimeter. We analyzed all spectra with the Least Squares Deconvolution multiline procedure. To improve the signal-to-noise ratio and detect extremely weak signatures in Stokes V profiles, we co-added all available spectra of each star (around 150 observations each time). Finally, we ran several tests to evaluate whether the detected signatures are consistent with the behavior expected from the Zeeman effect. The line profiles of the two stars display circularly polarized signatures similar in shape and amplitude to the observations previously gathered for Sirius A. Our series of tests brings further evidence of a magnetic origin of the recorded signal. These new detections suggest that very weak magnetic fields may well be present in the photospheres of a significant fraction of intermediate-mass stars. The strongly asymmetric Zeeman signatures measured so far in Am stars (featuring a dominant single-sign lobe) are not expected in the standard theory of the Zeeman effect and may be linked to sharp vertical gradients in photospheric velocities and magnetic field strengths. Beta Ursae Majoris and Theta Leonis belong to a group of chemically peculiar Am stars. Their spectrum has strong and often variable absorption lines of metals such as zinc, strontium, zirconium, and barium and deficiencies of a few elements, particularly calcium and scandium. In the search for magnetic fields of these two interesting metallic-line stars, the scientists used data from the NARVAL spectropolarimeter, installed at the two-meter Bernard Lyot Telescope (TBL) in the French Pyrénées. They published a paper online describing their results on Jan. 8 in the arXiv journal.NARVAL enables astronomers to detect stellar magnetic fields with unprecedented precision. It is specially designed and optimized to detect stellar magnetic fields through the polarization they generate in photospheric spectral lines. For their study, the scientists used data from NARVAL observation campaigns conducted from 2010 to 2014. Analyzing these data, they detected a circularly polarized signal coming from the two Am stars.According to the astronomers, all signals observed up until now have roughly the same shape, with one positive lobe roughly symmetric about the line center and occupying most of the width of the line profile.”The circularly polarized signal observed for both stars covers most of the width of the line and is mostly symmetric about the line centroid. In both cases, a positive lobe dominates the signal,” the researchers wrote in the paper.They assume that these signals must have a stellar origin as previous observations of an Am type star, Sirius A, show similarly shaped signatures. Sirius A was studied using three different scientific instruments including NARVAL, and according to the research team, these studies confirm their hypothesis regarding Beta Ursae Majoris and Theta Leonis.”From an empirical point of view, we stress that the signatures recorded so far for Sirius A display a similar shape using three different instrumental setups and three different models of CCD detector and two different reduction pipelines, giving strong confidence in a stellar origin of the polarized signature,” the paper reads.The research provides new clues to the weak polarized signatures produced in the photospheres of intermediate-mass stars. It indicates that weak magnetic fields could be widespread in this stellar class. The study also leads to a conclusion that these signatures could be indirect tracers of surface convective motions.However, some puzzling questions remain unanswered like the origin of this weak magnetism of Am stars. The paper offers only a few hints to the physical ingredients involved in the generation of these weak surface magnetic fields. This is due to a small number of Am stars observed so far and polarimetric signatures close to the detection limit. The astronomers underline that a physical model able to produce a convincing reproduction of the peculiar polarized signatures reported for the type of stars described in their study still needs to be developed. They also note that unveiling surface features on weakly magnetic Am stars requires a very sensitive method, such as the one used in a previous study to detect very faint starspots on Vega. The new methods and models should advance our knowledge regarding physical origin and basic properties of these stellar magnetic fields. Citation: Astronomers detect ultra-weak magnetic fields in two metallic-line stars (2016, January 13) retrieved 18 August 2019 from https://phys.org/news/2016-01-astronomers-ultra-weak-magnetic-fields-metallic-line.html Leo constellation. Credit: ESA This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.
Growing a business sometimes requires thinking outside the box. Register Now » “We want to beat Gary,” Elon Musk declared last year. “Victory will be beating the snail.”The eccentric entrepreneur was making similarly playful statements last week at a kind of town hall meeting in Los Angeles, where he was accompanied by a real-life version of Spongebob SquarePants’ house pet.Related: Someone Trademarked Elon Musk’s Name, and 25 Other Weird Things We’ve Learned About HimThe May 24 event was a chance for Musk to win community support for his Boring Company plan to build an underground tunnel beneath L.A. to relieve that city’s infamous traffic congestion. Here’s how it would work: Cars or multi-passenger vehicles would be lowered deep into the ground via an elevator accessed at multiple entry and exit points across the city. The vehicles would then be fed into a network of tunnels, 12 feet across and who-knows-how-many feet deep (Musk described the depth factor as limitless), and then whisked across town at 150 m.p.h. Cost: $1. A trip from downtown L.A. to LAX, the city’s airport, would take eight minutes, Musk said last week.The reason for Musk’s snail sidekick at the town hall event was to illustrate the famous entrepreneur’s desire to bore these tunnels faster. “Currently, he’s capable of going 14 times faster than a tunnel boring machine,” Musk said of his mollusk in May 2017 at a TED talk. “We want to beat Gary. He’s not a patient little fellow. That will be victory. Victory is beating the snail.”Last week’s hourlong appearance, part of which was live-streamed, took place in the spacious sanctuary of the Leo Baeck Temple in Los Angeles, prompting a turnout of 750 Musk fans (some in wacky headgear, like that at a ComicCon event). The religious venue led a CNET reporter to write, “Holy crap, we’re literally sitting at the altar of Musk.” Less spiritually, the event took place there because the synagogue sits next to the Interstate 405 freeway beneath which The Boring Company is starting to dig.Musk was late and blamed the 405 — presumably to make his point. But his point also included a bid for community support, since two neighborhood groups are fighting the L.A. city council’s approval for Musk to move forward with his tunnel plan without a lengthy environmental review.”This is the only way that we can think of to address chronic traffic issues in major cities,” said Musk, who was accompanied by Steve Davis, director of The Boring Company. Musk’s remarks were warmly received by the crowd, which gave him a standing ovation at the end and yelled things like, “You’re hired!”Related: I Ran My Day Like Elon Musk Runs His — and This Is What HappenedGary, who the tech site Gizmodo suspected might be the fourth incarnation of himself, slimed his way across his tank but had no other obvious reaction. Free Webinar | Sept. 9: The Entrepreneur’s Playbook for Going Global May 22, 2018 3 min read