RSF_en SenegalAfrica Receive email alerts Reporters Without Borders today condemned an attack by pro-government demonstrators on about 15 journalists who were following a convoy of supporters of opposition presidential candidate Idrissa Seck of the Rewmi party and the And Liguey Senegal coalition yesterday in the Dakar district of Mermoz.Several people were injured when the convoy was attacked by followers of Cheikh Bethio Thioune, a marabout (religious leader) and well-known supporter President Abdoulaye Wade of the ruling Senegalese Democratic Party, who is running for another term in elections on 25 February. The journalists’ vehicles were ransacked, some of their equipment was stolen and some of them were threatened with knives while police looked on without intervening.Reporters Without Borders said it condemned any act of violence against the press and stressed that governments are obliged to guarantee the safety of journalists in democracies. The press freedom organisation deplored the fact that members of the Senegal press were the victims of political rivalry and were assaulted on the street just three days before the election.The organisation called on the security forces and, in particular, interior minister Ousmane Ngom, to prevent any further outbreaks of violence on the eve of the election and to ensure adequate security measures for any political activities that journalists were likely to cover,In yesterday’s incident, the press was following an opposition convoy in two vehicles. One of them was a minibus containing about 10 journalists working for privately-owned media, including Radio Futurs Médias (RFM), the Walfadjri group, the daily Le Populaire and radio Océan FM. In the attack by demonstrators on the minibus, laptops and mobiles phones were taken, one of the journalists received a blow from a club and another was hit by a thrown stone. The journalists finally fled while the demonstrators torched the minibus. At one point, a woman journalist working for radio Walfadjri was surrounded by a group of very threatening assailants and only managed to get away after a friend in the crowd intervened. November 27, 2020 Find out more Organisation RSF asks Senegal to amend its new press law News January 8, 2021 Find out more Help by sharing this information to go further News February 22, 2007 – Updated on January 20, 2016 Authorities urged to maintain order after government supporters attack 15 journalists RSF decries exceptional press freedom violations in Senegal SenegalAfrica The 2020 pandemic has challenged press freedom in Africa Reports Follow the news on Senegal March 5, 2021 Find out more News
Community News 10 recommendedShareShareTweetSharePin it A shockwave created by a laser striking water propagates in slow motion, as captured by a new ultrafast photography technology. Credit: CaltechA little over a year ago, Caltech’s Lihong Wang developed the world’s fastest camera, a device capable of taking 10 trillion pictures per second. It is so fast that it can even capture light traveling in slow motion.A pulse of laser light travels through a crystal in slow motion, as captured by a new ultrafast photography technology. Credit: CaltechBut sometimes just being quick is not enough. Indeed, not even the fastest camera can take pictures of things it cannot see. To that end, Wang, Bren Professor of Medical Engineering and Electrical Engineering, has developed a new camera that can take up to 1 trillion pictures per second of transparent objects. A paper about the camera appears in the January 17 issue of the journal Science Advances.The camera technology, which Wang calls phase-sensitive compressed ultrafast photography (pCUP), can take video not just of transparent objects but also of more ephemeral things like shockwaves and possibly even of the signals that travel through neurons.Wang explains that his new imaging system combines the high-speed photography system he previously developed with an old technology, phase-contrast microscopy, that was designed to allow better imaging of objects that are mostly transparent such as cells, which are mostly water.Phase-contrast microscopy, invented nearly 100 years ago by Dutch physicist Frits Zernike, works by taking advantage of the way that light waves slow down and speed up as they enter different materials. For example, if a beam of light passes through a piece of glass, it will slow down as it enters the glass and then speed up again as it exits. Those changes in speed alter the timing of the waves. With the use of some optical tricks it is possible to distinguish light that passed through the glass from light that did not, and the glass, though transparent, becomes much easier to see.“What we’ve done is to adapt standard phase-contrast microscopy so that it provides very fast imaging, which allows us to image ultrafast phenomena in transparent materials,” Wang says.The fast-imaging portion of the system consists of something Wang calls lossless encoding compressed ultrafast technology (LLE-CUP). Unlike most other ultrafast video-imaging technologies that take a series of images in succession while repeating the events, the LLE-CUP system takes a single shot, capturing all the motion that occurs during the time that shot takes to complete. Since it is much quicker to take a single shot than multiple shots, LLE-CUP is capable of capturing motion, such as the movement of light itself, that is far too fast to be imaged by more typical camera technology.In the new paper, Wang and his fellow researchers demonstrate the capabilities of pCUP by imaging the spread of a shockwave through water and of a laser pulse traveling through a piece of crystalline material.Wang says the technology, though still early in its development, may ultimately have uses in many fields, including physics, biology, or chemistry.“As signals travel through neurons, there is a minute dilation of nerve fibers that we hope to see. If we have a network of neurons, maybe we can see their communication in real time,” Wang says. In addition, he says, because temperature is known to change phase contrast, the system “may be able to image how a flame front spreads in a combustion chamber.”The paper describing pCUP is titled “Picosecond-resolution phase-sensitive imaging of transparent objects in a single shot.” Co-authors include Taewoo Kim, a postdoctoral scholar in medical engineering, and Jinyang Liang and Liren Zhu, both formerly of Caltech.Funding for the research was provided by the National Institutes of Health.Additional images: https://caltech.app.box.com/s/0eyftij37w9rcvy3f7ywevimlapp2je3 Pasadena’s ‘626 Day’ Aims to Celebrate City, Boost Local Economy Name (required) Mail (required) (not be published) Website Science and Technology Ultrafast Caltech Camera Takes 1 Trillion Frames Per Second of Transparent Objects and Phenomena By EMILY VELASCO Published on Tuesday, January 21, 2020 | 11:25 am First Heatwave Expected Next Week Subscribe Community News HerbeautyWant To Seriously Cut On Sugar? 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This is the last of four reports echoing key themes of The Harvard Campaign, examining what the University is accomplishing in those areas.Scholars who study the last financial crisis and others who probe climate change would not seem to have much in common, but their fields of study are characteristic of today’s pressing problems, which are often maddeningly complex and global in scope.As humanity’s concerns go global, so too must the efforts to understand them. In recent years, Harvard has been strengthening its presence around the world, supporting international research, offering study-abroad opportunities, and opening offices in India, China, Mexico, Brazil, and other countries.Technology has shrunk the world, increasing access to knowledge, facilitating communications, and fostering collaboration between researchers at different institutions who would expand that knowledge. And, as universities seek their place in a globalized world, nations with an eye toward accelerating economic development are putting money into higher education, creating fresh competition for the best and brightest faculty members and students.Harvard President Drew Faust numbered the globalization of higher education among the top challenges facing Harvard in her year-opening speech on Sept. 10, and said during Saturday’s launch of The Harvard Campaign that meeting that challenge would be a fundraising priority.“The future we face together will bring us closer than ever to people, ideas, and cultures around the globe,” Faust said at Sanders Theatre. “Harvard must bring the world to our campus and our students and faculty to the world. Harvard students and faculty must understand their lives and work within a global context, one enriched by the content of our curriculum, by a cosmopolitan campus, and by the opportunities available for significant international study, research, and engagement. Our campaign must strengthen the bonds between Harvard and the wider world.”Harvard has long sought knowledge beyond national boundaries. Its museums and galleries are full of plants and animals, paintings and pottery, textiles and texts that hail from the far corners of the earth. Many of those collections date back decades and even centuries, as past generations of scholars worked to expand the University’s understanding of the world.On campus today, a significant part of Harvard’s student body hails from abroad. Harvard’s International Office, founded in 1944 to help foreign students transition to life on campus, originally tallied just 240 students, a number that has grown since to 7,000 scholars.Faust’s description of Harvard as a “cosmopolitan” place goes beyond the makeup of students and the countries they travel to and hail from. It also refers to the intellectual mix-in on campus. Here, students can study the history, culture, and language of societies around the world, with departments dedicated to the Near East, East Asia, Africa, and South Asia, as well as those centered on the Germanic, Romance, Slavic, and Celtic languages and literature.Similarly, a variety of centers, institutes, and committees foster research into important global areas, including the Middle East, Japan, Asia, China, South Asia, Africa, Europe, Russia, Latin America, and Korea, among others.“Across the University’s Schools, the expertise of the Harvard faculty spans the world,” said Vice Provost for International Affairs Jorge Dominguez. “In the social sciences and the humanities, there is impressive scholarly work about countries large and small, their politics and economics, their literature and art. Harvard shines its scholarly light on the academic study of countries and regions the world over.”But the campus’ engagement with other people and cultures isn’t static, bound by the pages of books. It is a living exploration that is founded on past scholarship, but enriched and updated by new knowledge, including that imparted by a steady stream of campus visitors. Those range from political leaders — the president of Colombia and the prime minister of Norway are both speaking at the Harvard Kennedy School this week — to more offbeat visitors such as eL Seed, a Tunisian street artist who last year created some of his signature designs in Science Center Plaza.This globally engaged community also is poised to respond when world events push scholarship into the background, using existing networks to reach out during disasters such as the 2011 Japan earthquake and tsunami and the 2010 quakes in Haiti and Chile.Over the past decade, Harvard administrators and faculty have wrestled with how Harvard can best help on global research problems, greater interconnectedness, and increasing demand for higher education. A study of the issue led by Harvard Business School Dean Nitin Nohria proposed that the University pursue a strategy of seeking the largest intellectual footprint with the smallest physical footprint.What that means is the University has eschewed building campuses overseas, but has supported the efforts of programs and individuals to engage abroad. The President’s Innovation Fund for International Experiences, for example, awards grants to faculty members to assist with the difficult task of developing classes in other nations.Instead of physical campuses, Harvard has opened supportive offices, some of which are dedicated to specific programs and Schools — Harvard Business School, for example, opened an Istanbul office this year — while others, such as the Harvard Center Shanghai and the David Rockefeller Center for Latin American Studies’ offices in Chile, Brazil, and Mexico City, are intended as university-wide offices.The issues explored by Harvard scholars abroad are perhaps even more varied than the places where they study them. Harvard researchers traveling the world often work with partners at local institutions to probe everything from the global sex trade to the nature of Anolis lizards on Caribbean islands, from the ugly, hidden side of the British Empire’s colonial rule to the devastating impact of diseases such as HIV/AIDS, tuberculosis, and malaria.Earlier this year, for example, scholars from a variety of disciplines banded together to visit and analyze a massive but temporary phenomenon. India’s Kumbh Mela is a religious festival that occurs just once every 12 years and draws millions to the banks of the Ganges River. To house them, organizers construct a massive temporary city that is erected, lived in, and dismantled over the course of just weeks.Scholars reached across disciplinary lines to create a research project there that investigated everything from religion to urban design to public health.“We live in an era when knowledge is of growing importance in addressing the world’s most pressing problems, when technology promises both wondrous possibilities and profound dislocations, when global forces increasingly shape our lives and work, when traditional intellectual fields are shifting and converging, when public expectations and demands of higher education are intensifying,” Faust said in her year-opening speech. “I see many unprecedented opportunities in these developments — opportunities for our teaching, for our research, and for our global connections and reach.”
Source: Vermont DOE. Sept 15, 2009 Craig Divis, a high school social studies teacher at Bellows Falls Union High School in Bellows Falls, was named by the State Board of Education as the 2010 Vermont Teacher of the Year at a ceremony held today at the school.Also honored were:Alternate Stacey Endres, a middle school social studies and English teacher at Milton Middle School in Milton.Finalist Terry Frey, a K-12 music teacher at Windsor Junior Senior High School and State Street School in Windsor.As the 2010 Teacher of the Year, Divis will travel statewide visiting schools and working with teachers. In addition, he is Vermont’s candidate for the National Teacher of the Year award, sponsored by the Council of Chief State School Officers. He will also travel to Washington, D.C. this spring for a reception at the White House. The Vermont Teacher of the Year Program is sponsored by Hannaford Bros. Co.State Board members visited Divis’ classroom this morning prior to a school-wide assembly. The lunchtime ceremony included remarks by Divis, 2009 Vermont Teacher of the Year Diane Leddy, Education Commissioner Armando Vilaseca and State Board Chair Tom James. The student body was present as well. Divis was presented with SMART Board ™ equipment and software for his classroom by Brian Scofield of SMART Technologies, with software and materials going to each of the other two finalists. In addition, the Department of Education donated $2,500 towards classroom-related supplies and activities.Divis, a resident of Grafton, has been an educator at Bellows Falls for five years, the past two as Social Studies Department Coordinator. He has been a classroom teacher for six years. He received a B.S. in Education from Miami University in 2003, and spent one year as an alternative program teacher in Akron, Ohio prior to coming to Vermont. Divis has worked with the University of Vermont’s Asian Studies Outreach Program since 2005 and traveled extensively during the summer.“The rewards that I find in teaching are when students become passionate about learning and understanding the world, and want to experience it firsthand,” he wrote in his nomination packet. “My rewards don’t come from grades students get on a test, but from students coming back years after graduation to visit me and tell me about their experiences traveling the world and becoming passionate about learning.”In addition to serving as an advisor to student teachers, he has served as a member of the Windham Northeast Supervisory Union Social Studies Curriculum Committee, is the chair of the Bellows Falls Union High School Social Studies Department, serves as assistant chair to the school’s Literacy Action Plan Committee, and is a member of the faculty council.Principal Chris Hodsden wrote, “Mr. Divis will not only represent our state well as Teacher of the Year, he will represent the field of education well to the general public and the nation.”In his presentation, Commissioner Vilaseca said, “We are fortunate to have someone of Mr. Divis’ caliber working here in this state.”During his remarks, Mr. Divis made a point of acknowledging his colleagues and parents. However, he saved his greatest praise for his students, telling them, “I am inspired by you every single day. I am in awe of the accomplishments of those of you in the audience and those who came before. It is to you who I say thank you for without you this would not be possible.”The Vermont Teacher of the Year program is sponsored by Hannaford Bros.
AddThis Sharing ButtonsShare to FacebookFacebookShare to TwitterTwitterShare to MoreAddThisArmy, Air Force, Marines and Special Forces all gathered in Northeast Michigan to operate the exercise Northern Strike. This exercise helps to train service members working from the ground, water and air, it stimulates real life situations as if they were in combat.AddThis Sharing ButtonsShare to FacebookFacebookShare to TwitterTwitterShare to MoreAddThisContinue ReadingPrevious Field Trip Friday Goes To Dinosaur GardensNext Limited Tickets Now Available for 7th Annual Grub Crawl