Facebook Twitter Google+LinkedInPinterestWhatsApp Facebook Twitter Google+LinkedInPinterestWhatsAppProvidenciales, TCI, February 8, 2017 – On the 4th February, World Cancer Day was observed under the theme “We Can. I Can”. World Cancer Day presents the opportunity to raise awareness and draw attention to the fact that we can all help to prevent and or control cancer. Addressing cancer in the TCI and globally calls for combined efforts between governments, civil society organizations and nongovernmental organizations to promote action and investments in areas including promotion of healthy lifestyles, tobacco control, cancer screening and early detection, allowing for improved cancer treatment services, and if there is no possible cure palliative care.The Turks and Caicos Islands are encouraged to be inspired and take action! The number of cases of cancers being diagnosed within the TCI has significantly increased over the years. Mrs. Aldora Robinson, Director of Health Promotion and Advocacy stated; “We must take responsible action for our health, we need regular medical checkups, early detection is critical, we need to exercise and reduce our intake of the foods that increase our risk for cancer.”The Minister of Health, Agriculture and Human Services the Hon. Edwin Astwood stated; “As the Minister, my team and I have embarked on the practice of maintaining a healthy diet and I encourage everyone living in the Turks and Caicos Islands to start a healthy diet plan, practice regular and proper physical activity and remember together we can reduce and prevention the risk of cancer and cancer associated ailments.”The Ministry of Health, Agriculture and Human Services are continually improving not only access to care, but developing programs to assist individuals in the prevention and control of cancers. For more information contact the Health Promotion and Advocacy Unit on 338-2772.Let us join forces as we take action, yes we can. Related Items:#magneticmedianews, #TakeactionagainstCancer, #WorldCancerDay2017 #MagneticMediaNews #WorldCancerDay2017 #TakeactionagainstCancer
Hearts forward Steven Naismith believes the team can rediscover their early-season winning run.The Scottish Premiership club got their first win since Naismith went down with a knee injury on Saturday.Craig Levein’s side led the Scottish Premiership at some point this season after winning eight of their first 10 games in the league but injury to Naismith coupled with the absence of the likes of Christophe Berra, John Souttar and Uche Ikpeazu, has seen them tumble to fourth.But Berra returned to full fitness earlier in the December and with his expected return during the festive period, Naismith is confident that the team can rediscover their winning run.Naismith, whose team are only three points off the top, said, according to SportsMole: “You chop it into blocks. We need to be looking at being still in that mix around the winter break.”News: Pereira has gone on loan from United to Hearts George Patchias – August 13, 2019 The young Portuguese goalkeeper has secured a loan deal for the remainder of the season to Hearts of the Scottish Premier League.According to a…“It’s shown so far this season that every team can take points off everybody. It’s about building groups of games and getting good performances.”“We have shown over the first three or four months of the season that we are capable of doing that.”“The boys that have been in the team have shown over the last week that they are not just going to sit down and accept it.”“You could easily have gone through the week of the Rangers game, St Johnstone, Motherwell, with no points but we have put up some good fights. On other days we would have got more points but we’ve dug in, we have shown a steeliness.”“The more players come back, you would hope the more competition for places and the performances rise again.”
Deformation mode. a) STEM image of the TiZrHfNb base HEA at 8% tensile strain (the yellow arrows indicate the coplanar dislocation arrays). b) STEM image of O-2 HEA at 8% tensile strain (the red arrows indicate the dipolar walls). c) STEM image of N-2 HEA at 8% tensile strain (the yellow arrows indicate the planar slip bands). Typical planar slip is observed in the base HEA and in the nitrogen-doped alloy variant N-2 HEA. However, wavy slip dominates deformation of the oxygen doped variant O-2 HEA, suggesting that oxygen addition leads to a plastic deformation mode dominated by wavy slip. The beam direction in a and c is  while that in b is . d) Dislocation spacing of the TiZrHfNb base HEA and of the interstitially doped variants O-2 and N-2 HEAs probed during in situ TEM tensile experiments. The white arrows represent the dislocation spacing. The average dislocation spacing in the O-2 HEA is much smaller than that in the base HEA and in the N-2 HEA. The error bars are standard deviations of the mean. Credit: Nature, doi: 10.1038/s41586-018-0685-y Journal information: Nature To understand the underlying mechanism of this anomalous, interstitial solid-solution strengthening effect observed with oxygen doped materials, nanostructures of materials were investigated at the atomic scale. For this, the scientists first used synchrotron high-energy X-ray diffraction (XRD) patterns of the base HEA compared with the two alloy variants of O-2 and N-2 HEA. The results showed that addition of either nitrogen or oxygen to the base HEA did not change its single-phase body-centered cubic (b.c.c) structure. This observation was confirmed by electron back-scattering diffraction mapping. In the scanning transmission electron microscope high-angle annular dark field micrograph (STEM-HAADF) images of the O-2 HEA; light atoms were represented in dark contrast, while heavy atoms were imaged bright. Mechanical properties. a) Room-temperature tensile stress–strain curves for the as-cast TiZrHfNb (denoted as base alloy), (TiZrHfNb)98O2 (denoted as O-2) and (TiZrHfNb)98N2 (denoted as N-2) HEAs. σy is the yield strength (squares), σUTS is the ultimate strength (diamonds) and ε is the elongation (circles). The inset shows the corresponding strain hardening response (dσ/dε). A higher work-hardening rate is observed for the O-2 HEA variant (TiZrHfNb)98O2 compared to the base HEA TiZrHfNb and the N-2 HEA (TiZrHfNb)98N2. b) Changes in strength and ductility observed for the HEAs introduced here, relative to several types of established high-performance alloys. The reference systems are Ti6Al4V, β-Ti alloys, niobium, vanadium, interstitial free steel and 316 austenitic stainless steels. The alloys’ interstitial oxygen or nitrogen content is indicated for comparison. Credit: Nature, doi: https://doi.org/10.1038/s41586-018-0685-y Schematic diagram illustrating the mechanism of plastic deformation in the cubic structure of the oxygen-rich high-entropy alloy (HEA). a) In the oxygen-high entropy alloys, the ordered oxygen complexes (OOCs) acted on dislocations in mechanical strain studies. b) During the initial stages of plastic deformation, the planar slip still prevailed. c) Once the dislocations encountered severely distorted interstitial-enriched OOCs, cross-slip is promoted due to their strong pinning effects. d) This results in massive dislocation multiplications. e) More and more dislocations are pinned by OOCs, and dipolar walls emerged as the strain increased to promote work hardening of the material, eventually leading to higher ductility. Credit: Nature, doi: https://doi.org/10.1038/s41586-018-0685-y Researchers present new strategy for extending ductility in a single-phase alloy Engineering strong, tough (damage-tolerant) materials traditionally requires striking a compromise between hardness and ductility. In the new study, oxygen complexes were structurally ordered in nanoscale regions within the HEA characterized by oxygen, zirconium and titanium (O, Zr, Ti)-rich atomic complexes. Formation of these complexes was promoted by chemical short-range ordering among matrix elements within the HEAs. In face-centered cubic HEAs, carbon was reported to improve strength and ductility by lowering stacking fault energy and increasing lattice friction stress. By contrast, ordered interstitial complexes described by Lei et al. mediated a strain-harvesting mechanism with potential for specific use in Ti, Zr, and Hf (Hafnium)-containing alloys. Interstitial elements are usually highly undesirable in such metal alloys due to their embrittlement effects and since tuning the stacking fault energy and exploitation of thermal transfer had not previously led to property enhancement in other alloys. The novel study results therefore provided insight to the role of interstitial solid solutions and the associated mechanisms of strengthening metallic materials. The work is now published in Nature. Explore further Citation: Enhanced strength and ductility in a high-entropy alloy via ordered oxygen complexes (2018, November 27) retrieved 18 August 2019 from https://phys.org/news/2018-11-strength-ductility-high-entropy-alloy-oxygen.html Oxygen is an abundant element that can form undesired impurities or ceramic phases in metallic materials, while doping the element on metal can render substrates brittle. During interactions with metallic alloys, oxygen takes a state between oxide particles and frequently occurring random interstitials to form ordered oxygen complexes. In a new study, materials scientists Zhinfeng Lei and co-workers observed that unlike in traditional interstitial strengthening, such ordered interstitial complexes could form high-entropy alloys (HEAs) with unprecedented enhancement in strength and ductility in compositionally complex solid solutions. When the scientists doped a model TiZrHfNb HEA with 2.0 atomic percent (2 at%) oxygen, they observed substantially enhanced tensile strength and ductility, breaking a longstanding conflict on strength and ductility trade-off. 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.
In forceful assertions by its leaders, BJP said there was no other option left then but to release the three dreaded terrorists to save the lives of people on board the Indian Airlines plane that was hijacked and taken to Kandahar.