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Attachment and growth of antarctic soil cyanobacteria and algae on natural and artificial substrata

first_imgThe attachment to artificial substrata (carborundum paper) of cyanobacteria and algae isolated from Antarctic fellfield soils was investigated using a simulated flow apparatus. Generally, the rugosity of the substratum was less important than the morphology and extent of mucilage production of the microflora in determining attachment success. However, the smoothest grades of substratum did increase the retention of the fine filaments of the cyanobacterium Pseudanabaena and decrease the retention of the large filaments of the chlorophyte Zygnema. Filaments of the motile cyanobacterium Phormidium and cells of the motile diatom Pinnularia showed good retention on all grades of paper, with that of Phormidium being the highest of all taxa at 90–100%. The coccoid chlorophyte Planktosphaerella was poorly retained on all grades of substratum. Growth rates of the same organisms on fellfield soils were little affected by soil rugosity, although the largest soil particles (1–2 mm) did cause a decrease in the growth rate of Phormidium and increase in that of Planktosphaerella. These results indicate the importance of the cyanobacterial-algal flora, and especially the motile component, in the stabilization of fellfield soils.last_img read more

Peruvian Defense Ministry and Armed Forces Joint Command Organize Technology Fair

first_img SITDEF’s third edition, held at the Peruvian Army’s headquarters from 11 to 15 May, was inaugurated by President Alan García and will be attended by authorities from the Armed Forces and the National Police, as well as by twelve defense ministers from the region, among others. The lack of high-tech equipment, action strategies, and a culture of prevention of natural disasters has meant millions of dollars in losses for Peru over the last decade. By Dialogo May 12, 2011 For this reason, the International Defense Technology Salon (SITDEF) is promoting the presentation of the most advanced tools from around the world for the prevention of and action in response to natural disasters, such as radars, meteorological systems, rapid-response helicopters, first-aid vehicles, military field hospitals, and computerized visors, among others. The 2011 edition of SITDEF is being held in a much larger space than the previous editions, enabling a better display of the most advanced defense, security, and natural-disaster-prevention equipment by the one hundred domestic and foreign firms participating. For the first time, a Sukhoi plane will be on exhibit, and attendees will be able to experience, using a simulator, what it is like to steer a submarine, as part of the celebrations for the centennial of the Peruvian Navy’s Submarine Force. center_img This is a business and cultural event, jointly promoted and organized by the Peruvian Defense Ministry and Armed Forces in Peru every two years since 2007. (*This press release is a republication in Diálogo of the original release.) The event seeks to bring together domestic and foreign firms dedicated to exhibiting cutting-edge technology in the areas of natural-disaster prevention and national defense. In addition to specialized lectures addressed to military bodies such as the Air Force, the Navy, and the Army, the fair will also include the exhibition of defense equipment, such as tanks, communications equipment, citizen-safety systems, etc. last_img read more

Tender announced for directors of the Croatian National Tourist Board in seven markets

first_imgThe Croatian National Tourist Board has announced a competition for the selection seven director of the representative office on the market Austria, the Czech Republic, Slovenia, Sweden, Hungary, Slovakia and China. The Tourist Board of the CNTB has formed for the purposes of implementing the tender Committee for evaluation of received candidatures, and which was appointed in the same composition as during the implementation of the competition last year when the directors of eight foreign offices were elected. Barbara Mesić, Chief Advisor to the Minister of Tourism, was appointed President of the Commission, and the members of the Commission are representatives of the CNTB Tourist Board Boris Žgomba, Tomislav Fain and Marcel Medak, and Professor Dragan Magaš, who is a member as an external associate. After the deadline for applications, the commission will evaluate the received applications, conduct interviews with selected candidates, which will inform the Tourist Board, to which it will send its nomination proposal.”We expect that quality professionals with creative and interesting work program proposals will apply for the competition. Among the announced competitions is the one for the director of the future office in Shanghai, where we are opening our representative office for the first time, within the premises of the Croatian Chamber of Commerce. Our goal is to position our country even stronger in the large and important Chinese market. As a tourist destination, Croatia is very well recognized among our traditional European travelers, so our main long-term goal, while maintaining this status, is to open new and distant markets where we have great potential for further growth and development.”, said the director of the Croatian Tourist Board Kristjan Staničić.In addition to the conditions prescribed by the Labor Act and the Ordinance on special conditions that must be met by employees of the tourist office, interested candidates must also meet the conditions prescribed by the competition itself. Candidates, among other things, must have completed at least a specialist graduate professional or graduate university study, have at least three years of work experience in the field of tourism and / or marketing, actively know one language with knowledge of another world language, know the tourism market for which you apply and make a proposal for its representative office work program for the following calendar year.Applications and evidence of eligibility and curriculum vitae of the candidate shall be submitted no later than 15 days from the announcement of the tender in the Official Gazette, ending on April 26, 2018. years. Read the text of the public invitation with all the information in the attachment.Attachment: COMPETITION FOR THE SELECTION AND APPOINTMENT OF THE DIRECTOR OF THE REPRESENTATIVE OFFICE OF THE CROATIAN TOURIST BOARD</p>
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Women of Troy hit the field after pair of tough losses

first_imgUSC (5-10-3, 2-6-2 ) hopes to close out the 2012 season on a high note as they take on No. 2 UCLA (15-1-2, 8-1-1) on Friday, Nov. 2 at 2 p.m. at McAlister Field .The Women of Troy are coming off a pair of 1-0 losses to No. 1 Stanford in double overtime and No. 21 California. All but three of USC’s games have been one-goal games or ties, and USC has played eight overtime games this season.“There were some questionable calls in the game on Friday,” redshirt sophomore defender Mia Bruno said. “We were really proud of the way we played on Friday. We felt like we had them.”The team isn’t down on itself, either.“After the weekend we had, we’re picking our spirits back up,” Bruno said. “We’ve forgotten about it, and now we’re focusing our attention on the upcoming game.”The Women of Troy are led in scoring by junior midfielder Jordan Marada and senior midfielder/forward Samantha Johnson, each with four goals. Marada also has five assists on the season.UCLA is coming off its first loss of the season against No. 1 Stanford. They are led by Pac-12 leading scorer Zakiya Bywaters, who has 12 goals this season, and goalkeeper Katelyn Rowland, who has 35 saves and six goals allowed in 15 appearances.USC is 4-20-1 all-time against UCLA, losing 5-2 last year in Westwood and last winning 1-0 in 2010 at the Coliseum. The last game at McAlister Field was won 2-1 by the Bruins in overtime in 2006.“This season has been a growing year,” Bruno said, “There have been a lot of freshman and transfers. I think this is good for them and all of us to learn and we’re gonna have a lot more experience for next season. We’re only losing five seniors and we have a lot of good recruits coming in, so things are looking up.”The game will be televised on Pac-12 Los Angeles.last_img read more