a month agoNuno disappointed with Wolves wastefulness for Braga defeat

first_imgNuno disappointed with Wolves wastefulness for Braga defeatby Paul Vegasa month agoSend to a friendShare the loveNuno was disappointed in Wolves’ wastefulness in the 1-0 loss to Braga on Thursday night.Patrick Cutrone, Ruben Neves and Willy Boly all had chances to opening the scoring for the hosts, but it was ultimately Ricardo Horta’s 72nd-minute strike that sealed a win for the Portuguese club.”We are all disappointed. It was a tough game, but I think we did enough,” Nuno said.”We did not perform perfectly, but we created many chances.”Braga had one chance, were very organised, and they scored.”That is the story of the game.”The boys worked hard, but that is football.” About the authorPaul VegasShare the loveHave your saylast_img

Report on Regional Health Authorities Review Being Finalised

first_imgStory Highlights The Ministry of Health is in the process of finalising a report from a review of the four regional health authorities, which will be the subject of stakeholder consultations during the 2018/19 fiscal year. The review, which was led by a team from the Pan American Health Organization (PAHO), looked at the authorities’ structure and performance, and proposes specific reforms which will be pivotal to the Government’s strategic plan for the public health sector. Dr. Tufton said the strategic plan is aimed at advancing the sector over the next 10 to 30 years through the completion of a number of critical supporting studies and reports that address several key areas. The Ministry of Health is in the process of finalising a report from a review of the four regional health authorities, which will be the subject of stakeholder consultations during the 2018/19 fiscal year.The review, which was led by a team from the Pan American Health Organization (PAHO), looked at the authorities’ structure and performance, and proposes specific reforms which will be pivotal to the Government’s strategic plan for the public health sector.This was announced by Portfolio Minister, Dr. the Hon. Christopher Tufton, during his 2018/19 Sectoral Debate presentation in the House of Representatives on Tuesday (June 5).Dr. Tufton said the strategic plan is aimed at advancing the sector over the next 10 to 30 years through the completion of a number of critical supporting studies and reports that address several key areas.Another component of the plan, the Minister informed, is the commissioning of a needs assessment study for five hospitals, which is being conducted by the United Nations Office for Project Services (UNOPS).The beneficiary institutions are the Spanish Town, May Pen, Mandeville, St. Ann’s Bay and Kingston Public hospitals.The study will provide recommendations for the facilities’ upgrading and/or expansion to determine how best the healthcare infrastructure can be networked and overhauled to address future challenges.“These studies will… make a determination as to how we operate (in terms of, for example) where we add beds and operating theatres in order to optimise the infrastructure that is available. We are deficient now, and this will add some value to that process. These (studies) are going to be critical to the (strategic) plan, and we are hoping that by mid-year, we will have the framework of that plan,” he stated.Dr. Tufton advised further that a report on the status of the sector’s information systems has also been completed. The document, which was facilitated under a technical cooperation agreement with the PAHO/World Health Organization (WHO), will form part of the strategic plan.Meanwhile, a road map for healthcare financing has been established and a report on the status of the national health insurance scheme, in this regard, is being completed. The report is expected to be ready within two months.last_img read more

Former Ohio State football players one step closer to NFL after draft

Senior running back Carlos Hyde (34) walks of the field during a game against Illinois Nov. 16 at Memorial Stadium. OSU won, 60-35.Credit: Ritika Shah / Asst. photo editorLives have changed  forever for 256 players as they were selected in the 2014 NFL Draft.Six of those players are former Ohio State Buckeyes.The first former Buckeye taken off the board was linebacker Ryan Shazier, who was selected 15th overall by the Pittsburgh Steelers in the first round Thursday night. He became the ninth former OSU linebacker and 68th Buckeye ever taken in the first round.Shazier, who was a first-team Associated Press All-American in his final season at OSU, totaled a Big Ten conference-high with 143 tackles to go along with six sacks.Cornerback Bradley Roby, who joined Shazier as one of 30 prospects invited to New York for the draft, was selected by the Denver Broncos with the 31st overall pick in the first round.Roby became the first OSU defensive back taken in the first round of the draft since Malcolm Jenkins was selected by the New Orleans Saints with the 14th overall pick in 2009.The Broncos, who dropped Super Bowl XLVIII 43-8 to the Seattle Seahawks on Feb. 2, have since bolstered their secondary by not only drafting Roby, but also signing former New England Patriots cornerback Aqib Talib to a six-year, $57 million contract in March.Just as they did in the first round, the Buckeyes produced two picks in the second round, as running back Carlos Hyde and offensive lineman Jack Mewhort came off the board.Hyde was selected 57th overall by the San Francisco 49ers, who are coached by former University of Michigan quarterback Jim Harbaugh.The former Buckeye running back became the first 1,000-yard rusher under OSU coach Urban Meyer and was named the Big Ten Ameche-Dayne Running Back of the Year in 2013. Hyde finished his senior campaign with 1,521 yards and 15 touchdowns on the ground.Mewhort was selected just two picks later with the 59th overall pick by the Indianapolis Colts.The selection of Mewhort marked the third straight year that an OSU tackle has been selected in the draft, following in the footsteps of Reid Fragel – drafted by the Cincinnati Bengals in 2013 – and Mike Adams, who the Pittsburgh Steelers selected in 2012.Mewhort was a three-year starter in his time as a Buckeye and was named a first-team All-American by ESPN.com during his senior season in 2013.Another Buckeye was not taken until the fifth round when center Corey Linsley was selected 161st overall by the Green Bay Packers.Linsley anchored an offensive line that ranked fifth nationally in 2013 in rushing, averaging 308.6 yards per game and breaking school records for points in a single season with 637, as well as touchdowns scored with 87.Linsley graduated from OSU with a degree in economics in December.Rounding out the former Buckeyes selected in the 2014 draft was safety Christian Bryant, who was selected 241st overall in the seventh round by the St. Louis Rams.Bryant, who was named a team captain prior to the 2013 season, suffered a season-ending ankle injury during the fifth game of the year against Wisconsin Sept. 28., a game won by OSU 31-24. At the time of the injury, Bryant ranked third on the team in tackles with 22.Bryant, who was a three-year starter for the Buckeyes, finished his OSU career with 171 total tackles to go along with two interceptions, 23 pass breakups and three forced fumbles.The Buckeye safety petitioned the NCAA for a medical redshirt in January, but was turned down and entered the draft.Although six Buckeyes were drafted to NFL rosters, several draft-eligible players were not selected during the draft.According to multiple reports, many of the former Buckeyes not drafted have found homes in free agency.Some of the players signing in free agency took to Twitter to announce their new teams, one of them being wide receiver Corey “Philly” Brown who announced his signing with the Carolina Panthers saying, “Here I come Carolina,” via his personal account @phillybrown10. Reportedly joining him in Carolina will be offensive lineman Andrew Norwell.Offensive lineman Marcus Hall confirmed with  The Lantern Sunday in an email that he has signed with the Indianapolis Colts, which reunites him with Mewhort.  Safety C.J. Barnett’s signing with the New York Giants was confirmed via Twitter by his signing agency IFA.Kicker Drew Basil also took to Twitter late Saturday night announcing he has signed with the Atlanta Falcons. Wide receiver Chris Fields also used social media to announce an agreement with the Washington Redskins.Running back Jordan Hall has earned a tryout with the Steelers according to multiple reports and quarterback Kenny Guiton remains unsigned as of Sunday morning. read more

Mbappe on winning the Ballon dOr I couldnt care less

first_imgUnlike Cristiano Ronaldo and Lionel Messi, the young rising star in Kylian Mbappe “couldn’t care less” about the Ballon d’Or award following a brilliant World Cup campaignThe 19-year-old is being tipped as a dark horse to put an end to Ronaldo and Messi’s dominance of the highly-coveted award this year and may well in with a shot, depending on the final outcome of France’s World Cup campaign.Mbappe’s meteoric rise in the football world has been undeniable following his standout performances at Russia, which even left a five-time Ballon d’Or winner in Messi in the shadows after the Paris Saint-Germain inspired France to a 4-3 over Argentina in the last-16.While many had expected his illustrious PSG teammate Neymar to be the one to end Ronaldo and Messi’s decade-long dominance of the Ballon d’Or, it appears that it could be Mbappe instead.But it winning the historic award, that has been awarded to greats like Michel Platini and Marco van Basten since it was introduced in 1958, is something that doesn’t seem so appealing to the young man.Franck Ribery, FiorentinaFiorentina owner: “Ribery played better than Ronaldo!” Andrew Smyth – September 14, 2019 Fiorentina owner Rocco Commisso was left gushing over Franck Ribery’s performance against Juventus, which he rates above that of even Cristiano Ronaldo’s.“I couldn’t care less about that,” he told TF1, via Express.“I want the World Cup. I want to sleep with it.“I wasn’t born in 1998, so I have never seen people on the Champs-Elysees celebrating.Mbappe has been linked with a move to Real Madrid to replace Ronaldo after his exit to Juventus on Tuesday.last_img read more

Official Sampaoli leaves Argentina

first_imgThe Argentine Football Association (AFA) have confirmed that head coach Jorge Sampaoli has vacated his post following Argentina’s disappointing World Cup campaignAfter two shock results against Iceland and Croatia, the South American side barely managed to scrape through the group stages of the competition before falling to eventual champions France in the Round of 16 with a 4-3 defeat.While Sampaoli had only been appointed Argentina boss in May 2017, there were reports that had emerged during the World Cup that had suggested that he was following Lionel Messi’s orders.Raheem Sterling, EnglandTop 5 best players from the international break weekend Tomás Pavel Ibarra Meda – September 11, 2019 After a fresh international break just came to an end, we need to talk about the Top 5 best players during this whole weekend.We…Now the 58-year-old has had his contract at Argentina mutually terminated with the AFA.“The Argentine Football Association [AFA] and the ex-coach of the national team Jorge Sampaoli today reached a mutual agreement to rescind his contract,” read the statement on Sky Sports.Argentina had their worst World Cup campaign this summer since 2002, which saw them being eliminated from the group stages at Japan and South Korea.last_img read more

Gattuso defends Higuain He feels a lot of pressure

first_imgAC Milan coach Gennaro Gattuso hopes Gonzalo Higuain will remain calm following his sending off against Juventus on SundayThe 30-year-old striker has enjoyed a good start to life on loan at Milan from Juventus with seven goals in 13 games.However, Higuain was unable to prevent Milan from losing to his parent club at the San Siro and was dismissed after having a penalty saved.The Argentine was handed a second yellow card after shouting in the match official’s face.But Gattuso believes that Higuain’s angry outburst came about due to putting too much pressure on himself.Mario BalotelliCorini tells Balotelli to “raise his game” Manuel R. Medina – September 14, 2019 According to the Brescia coach, Mario Balotelli “needs to raise his game if he wants to face Juventus” as his team is set to host Bologna.“At this moment he feels a lot of pressure, my words from yesterday’s press conference were not by chance,” Gattuso told Milan TV on the club website.“Right now, he feels a huge weight on him and it shows. He must remain calm, he should apologise and assume his responsibilities.“He has to put aside his nervousness, he is the most important player we have and he has to make the difference. He has to be clear-headed.”Mario Mandzukic and Cristiano Ronaldo were the goalscorers for Juventus, who remain unbeaten after 12 Serie A games.last_img read more

TN auto driver beaten to death for protecting woman from harassment by

first_img(Representational Image)Creative CommonsA Trichy auto driver was beaten to death by a group of intoxicated men after he tried stopping them from harassing his female passenger. The incident happened on May 19, Sunday, outside the Trichy Famous Biryani restaurant.The victim, identified as Abdullah, had taken his passenger to Trichy Famous Briyani restaurant. He waited for her outside the restaurant while she went inside to pick her parcel. During that time, an inebriated man bumped into the woman on purpose, revealed Tashmin Banu, the victim’s wife.”My husband immediately questioned the man and the people with him, and then, a tussle ensued. They hit each other and then the drunk man left, threatening to bring more people. But my husband didn’t take it seriously. However, he did come back with three men and they all hit him till he died. They used a wooden plank to beat his head,” Tashmin told The News Minute.However, when the Srirangam Assistant Commissioner of Police, K Ramachandran, was contacted, he brushed off the incident, saying that Abdullah was also inebriated and got into a fight with the other men who were also drunk.”Abdullah was also inebriated and he died because he was pushed to the ground and sustained head injuries. It was not a big fight…The man who allegedly harassed this woman is Nagarajan, who was also drunk,” Ramachandran said.Tashmin, on the other hand, is very confident that her husband would never drive when he is intoxicated. She questioned why the police were saying that he too was drunk. She said, “All he did was fight against people harassing a woman and there is nothing wrong in that. Not even one person in that restaurant came to help him and now the police are saying this.”last_img read more

Rohingya villages burned also after military operations HRW

first_imgComplete destruction of Rohingya villages in close proximity to intact Rakhine village, Maungdaw township, recorded on 21 September 2017. Photo: Human Rights WatchHuman Rights Watch (HRW) on Tuesday reported destruction of tens of thousands of structures in Myanmar, which are primarily homes inhabited by ethnic Rohingya Muslims.Referring to some newly released satellite images, the rights group said at least 288 villages were partially or totally destroyed by fire in northern Rakhine state since 25 August 2017.HRW analysis says the burnings took place after the Myanmar officials claimed security force “clearance operations” had ceased.The images show at least 66 villages were burned after 5 September, when security force operations supposedly ended, according to a 18 September speech by state counselor Aung San Suu Kyi.The Myanmar military responded to reported attacks on 25 August by the Arakan Rohingya Salvation Army (ARSA) with a campaign of ethnic cleansing, prompting more than 530,000 Rohingya to flee across the border to Bangladesh, according to the United Nations refugee agency.“These latest satellite images show why over half a million Rohingya fled to Bangladesh in just four weeks,” said Phil Robertson, deputy Asia director. “The Burmese military destroyed hundreds of Rohingya villages while committing killings, rapes, and other crimes against humanity that forced Rohingya to flee for their lives.”A total of 866 villages in Maungdaw, Rathedaung, and Buthidaung townships in Rakhine state were monitored and analysed by Human Rights Watch.The most damage occurred in Maungdaw township, accounting for approximately 90 per cent of the areas where destruction happened between 25 August and 25 September.Approximately 62 per cent of all villages in the township were either partially or completely destroyed, and southern areas of the township were particularly hard hit, with approximately 90 percent of the villages devastated.In many places, satellite imagery showed multiple areas on fire, burning simultaneously over wide areas for extended periods.Images showed that most of the damaged villages were 90 to 100 per cent destroyed.Many villages which had both Rohingya and Rakhine residing in segregated communities, such as Inn Din and Ywet Hnyo Taung, suffered heavy arson damage from arson attacks, with known Rohingya areas burned to the ground while known Rakhine areas were left intact.The Myanmar government has repeatedly said that ARSA insurgents and local Rohingya communities were responsible for setting the fires that wiped out their villages, but has offered no evidence to support such claims.Human Rights Watch interviews in Bangladesh with more than 100 refugees who had fled the three townships gave no indication that any Rohingya villagers or militants were responsible for burning down their own villages.HRW insisted that UN member countries and international bodies should press the Myanmar government to grant access to the UN-mandated fact-finding mission to investigate these abuses.The UN Security Council should also urgently impose a global arms embargo on Myanmar , and place travel bans and asset freezes on those Myanmar commanders responsible for grave abuses, the rights group said.”Governments should impose a comprehensive arms embargo against Burma (Myanmar), including prohibiting military cooperation and financial transactions with military-owned enterprises.”“The shocking images of destruction in Burma (Myanmar) and burgeoning refugee camps in Bangladesh are two sides of the same coin of human misery being inflicted on the Rohingya,” Robertson said. “Concerned governments need to urgently press for an end to abuses against the Rohingya and ensure that humanitarian aid reaches everyone in need.”last_img read more

Genes ex silico Computerdesigned virus yields phenotype expression benefits

first_img Dr. Wadie F. Bahou, MD, in Stony Brook’s Department of Medicine, works with a research group consisting of Varsha Sitaraman and Dmitri V. Gnatenko in the Department of Medicine; Patrick Hearing, Eckard Wimmer and Steffen Mueller in the Molecular Genetics and Microbiology Department; and Steve Skiena and Charles B. Ward in the Computer Sciences Department.“Our group is composed of individuals with long-standing interests in computational biology, virology, and gene therapy using viruses,” says Bahou. Thus, my group has been most interested in modifying genomes as strategies for gene therapy, Eckard and Steffen are pioneers in recoding viruses for vaccine development, while Steve and Charles provide the critical common thread for all our computational studies.”The key step in their achievement was to computationally redesign Rep 78/68 so that it was better tolerated by adenoviral vectors. “Prior research by our team had previously developed a computational algorithm for redesigning genes based on synonymous codon pair recoding,” Bahou notes. “The real leap of faith was to ask whether the algorithm could be applied to the case of viral/viral interactions. The redesign was relatively straightforward using the previously developed computational algorithm.”The methods that the team used to demonstrate that their leap of faith was justified were equally innovative. As Bahou explains, “The real innovation here is progressive evidence that synonymous pair bias actually can be manipulated to change fundamental characteristics of biological functions. Members of our team have previously demonstrated this for poliovirus and influenza virus, and in this case, we have shown its relevance for generating a novel gene therapy adenovirus.”Bahou also sees a number of potential avenues for further developing the group’s line of research. “Certainly the possibility of using these reengineered viral systems for vaccine development is an obvious application. For applications directly related to this most recent manuscript,” he continues, “it provides a unique opportunity for safe methods for long-term gene delivery. On a broader application, one could envision entire cell systems with recoded genes as a means of altering cellular function in general. This is a forward-thinking statement, but certainly predicated on the status of genome synthesis coupled with progressive information on genetic pathways that regulate cell functions.”Those applications, he adds, will most likely feature the ability to rapidly characterize and synthesize attenuated genomes as new vaccines. In addition, “we are currently testing our ability to safely use this technology for gene replacement strategies which have been limited by concerns for insertional mutagenesis” – mutations caused by inserting genes into a genome. “Such an issue is especially relevant for benign diseases such as hemophilia where cellular transformation using integrating lentiviruses should be considered an unacceptable risk for long-term gene replacement strategies. Therefore,” Bahou points out, “our collective group is currently trying to apply this research as a safe means of long-term gene replacement. At the same time, Bahou stresses that “It’s important to note that genome reengineering using synonymous codon pair restructuring is a relatively new concept, and we fully anticipate that the applications will broaden over time. In theory,” he concludes, “we should be able to modify genomes for both attenuated expression and enhanced expression, depending on the situational requirements. In that respect, the technology is relevant for many other biological systems, especially when developing computational approaches to modifying cellular systems at many levels.” Viruses evolve to play by host rules Citation: Genes ex silico: Computer-designed virus yields phenotype expression benefits (2011, August 29) retrieved 18 August 2019 from https://phys.org/news/2011-08-genes-silico-computer-designed-virus-yields.html 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. More information: Computationally designed adeno-associated virus (AAV) Rep 78 is efficiently maintained within an adenovirus vector, Published online before print August 15, 2011, doi:10.1073/pnas.1102883108 , PNAS August 23, 2011 vol. 108 no. 34, 14294-14299 Functional characterization of single-backbone Ad/AAV/dRep hybrid virus. (A) Schema of Ad/AAV/dRep with predicted monomeric (M) and dimeric (D) forms resulting from productive Rep 78 cleavage of endogenous AAV integrating elements p5IEE and AAV TR (Fig. 2 shows excision model). Sizes are as follows: ψ, Ad packaging sequence (0.4 kb); pCMV/EGFP cassette (1.6 kb); pTK/NeoR, (1.1 kb); Ad, Ad base pairs 3,330 to 3,940 (0.6 kb); p5IEE, 135 bp; AAV TR (145 bp each plus G-C tail); and dRep, approximately 1.9 kb. (B) Ad/AAV/dRep was serially passaged in 293 cells, and at indicated passages (P), Hirt DNA was isolated for genomic analysis using the approximately 0.2-kb Ad left end inverted TR (ITR base pairs 1-194) as probe (horizontal bar). *Parent Ad/AAV/dRep virus. © PHAS, doi: 10.1073/pnas.1102883108 (PhysOrg.com) — Gene therapy is medicine’s rising star with adeno-associated virus (AAV) vectors – nonpathogenic parvoviruses – among the most promising supporting actors, due largely to their capability to integrate into transcriptionally silent genomic regions (areas that do not, via RNA polymerases, make a messenger RNA copy of DNA-stored genetic information). That being said, there’s been a downside in assembling AAV vectors into adenoviral (Ad) viral backbones, which are used extensively in genetic research and therapy: They rely on replication (Rep) proteins – in this study, the Rep 78/68 polypeptide – which limit viral amplification methodologies. Recently, however, researchers at Stony Brook University have used computational microbiology to reengineer the Rep gene through synonymous codon pair recoding, a technique in which the meaning of a codon (a set of three base nucleotides) is changed in a dynamic site- or mRNA-specific way – that is, it competes and shares expression with the standard. The experimental results demonstrate the value synonymous codon pair reengineering can have in modifying endpoint expression. Copyright 2011 PhysOrg.com. All rights reserved. This material may not be published, broadcast, rewritten or redistributed in whole or part without the express written permission of PhysOrg.com. Explore furtherlast_img read more

Designing lightharvesting organic semiconductor microcrystals with wavelengthtunable lasers

first_img More information: Kang Wang et al. Exciton funneling in light-harvesting organic semiconductor microcrystals for wavelength-tunable lasers, Science Advances (2019). DOI: 10.1126/sciadv.aaw2953 I. D. W. Samuel et al. Organic Semiconductor Lasers, Chemical Reviews (2007). DOI: 10.1021/cr050152i Luis Cerdán et al. FRET-assisted laser emission in colloidal suspensions of dye-doped latex nanoparticles, Nature Photonics (2012). DOI: 10.1038/nphoton.2012.201Mingjian Yuan et al. Perovskite energy funnels for efficient light-emitting diodes, Nature Nanotechnology (2016). DOI: 10.1038/nnano.2016.110 Illustration for exciton funneling in the light-harvesting systems. (A) Schematics of light harvesting, where the wide-bandgap hosts (gray spheres) act as antenna and locally formed CT complexes with narrow bandgap (pink spheres) act as acceptor. (B) Diagram for exciton funneling in light-harvesting systems. The black arrows represent the exciton transfer process. Credit: Science Advances, doi: 10.1126/sciadv.aaw2953 They introduced C60 into OPV to achieve light-harvesting ability and balanced the carrier mobility. The OPV and C60 interactions formed localized CT complexes with narrowed bandgap to function as acceptors in the light-harvesting system. Wang et al. synthesized the OPV microcrystals doped with controllable amounts of C60 using liquid-phase self-assembly to form strong intermolecular interactions and engineer a one-dimensional structure, which they confirmed using scanning electron microscopy (SEM) images. Lasing performances in the light-harvesting microwires. (A) PL spectra recorded from a typical C60@OPV microwire (doping concentration, 5.6 mol %) pumped with different laser energies. Inset: PL images of the C60@OPV below and above the lasing threshold. Scale bar, 10 μm. (B) Emission intensity (red) and full width at half maximum (FWHM) (black) as a function of pump fluence. (C) Normalized lasing spectra of the OPV microcrystals with different C60 doping concentrations. Inset: Corresponding PL images of the doped OPV microcrystals pumped above lasing thresholds. Scale bars, 10 μm. Credit: Science Advances, doi: 10.1126/sciadv.aaw2953 , Chemical Reviews , Nature Photonics 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. Explore further Preparation and structural characterization of C60@OPV light-harvesting microcrystals. (A) Chemical structures of OPV and C60, and molecular structure of the resulting CT complex. (B and C) SEM images of typical OPV and C60@OPV microwires. Scale bars, 5 μm (B) and 2 μm (C). (D and E) TEM images of individual OPV and C60@OPV microwires. Scale bars, 2 μm. (F and G) SAED patterns of the corresponding microwires in (D) and (E). Scale bars, 2 1/nm. (H) Raman spectra of individual OPV, C60, and C60@OPV microwires. a.u., arbitrary units. The C60 doping concentration of the C60@OPV microcrystals used for these characterizations is 5.6 mol %. Credit: Science Advances, doi: 10.1126/sciadv.aaw2953 Theoretical investigation of the CT processes in light-harvesting systems. (A) Molecular orbital diagrams of OPV, C60, and CT complex calculated by density function theory. (B) Schematic of efficient exciton funneling for the formation, accumulation, and radiative deactivation of CT excitons in the C60@OPV light-harvesting systems. (C) Maximum emission wavelength of microcrystals versus C60 doping concentration. Credit: Science Advances, doi: 10.1126/sciadv.aaw2953 In this way, Kang Wang and co-workers reported on exciton funneling and stimulated emission in light-harvesting organic semiconductor microcrystals. Using theoretical and experimental demonstrations they controlled the CT complexes for effective lasing and regulated the emission of light-harvesting microcrystals to build wide wavelength-tunable micro-lasers. While at present the results only provide detailed insight into the exciton funneling process in light-harvesting systems to enable electrically driven organic lasers. The outcomes of the work offer a promising route to develop efficient organic materials and achieve electrically driven lasers for full-color laser displays in the future. To provide in depth insight to the light harvesting systems at the level of energy-orbitals, Wang et al. performed theoretical studies and calculated the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) of the separate molecules and the C60-OPV CT complex. While the HOMO electron density of OPV was distributed across the entire molecule, LUMO was mostly localized on different sites of the molecule. Using the experimental and theoretical results, Wang et al. drew an energy diagram of exciton evolution in a light-harvesting system and observed the comprehensive process that formed exciton funnels. The researchers subsequently conducted optically pumped lasing measurements to test the lasing performance in the light-harvesting microwires using a micro-photoluminescence (micro-PL) system. They verified the occurrence of lasing in the C60@OPV microwires at different pump intensities and controlled the emission from CT complexes by doping varying concentrations of C60 in to the OPV hosts. The scientists could tune the light-harvesting molecules in the present work to provide a key step to ultimately synthesize organic laser diodes in further studies. center_img Scientists develop polariton nano-laser operating at room temperature Exciton funneling into the CT states in the organic light-harvesting microcrystals. (A) Absorption spectra of OPV (green), C60@OPV (red) microwires, and C60 dispersed in polymer hosts (black). a.u., arbitrary units. (B) Fluorescence microscopy images of OPV (top) and C60@OPV (bottom) microwires. Scale bars, 20 μm. (C and D) Streak camera images and PL spectra of OPV (C) and C60@OPV (D) microcrystals excited with a 400-nm pulsed laser (~100 fs, 1 kHz). tD and tDA are the average lifetimes of donor (~551 nm) in the absence (pure OPV) and presence (C60@OPV) of the acceptor, respectively. The C60 doping concentration of the C60@OPV microcrystals used for these characterizations is 5.6 mol %. Credit: Science Advances, doi: 10.1126/sciadv.aaw2953 In its pure form, the OPV microcrystal displayed a well-defined wire-like appearance with smooth and flat surfaces. Upon introduction of C60, the resulting microcrystal maintained similar morphology to indicate that C60 did not significantly alter the morphology of OPV crystals. The scientists verified the structure of the crystal microwires using Raman spectra, transmission electron microscopy(TEM), select-area electron diffraction (SAED) and X-ray diffraction. The results suggested a strong presence of OPV with C60 doped in its matrices. The interaction between C60 and the OPV molecules generated a new CT state, which Wang et al confirmed using absorption spectra. When observed under ultraviolet excitation (UV), the C60@OPV molecules showed red emission, in sharp contrast to the yellow emission in pure OPV microwires and non-luminescence in the C60 microwires. The scientists identified the new CT excitation state of C60@OPV crystals using photoluminescence and calculated the efficiency of the energy transfer to show effective funneling potential between the molecules and efficient energy accumulation in the CT states of the light-harvesting microcrystals. Journal information: Science Advances To synthesize the light-harvesting microcrystals, Wang et al. used a cyano-substituted molecule referred to as OPV (for oligo-(α-phenylenevinylene)-1,4-bis(R-cyano-4-diphenylaminostyryl)-2,5-diphenylbenzene) and fullerene (C60). The two molecules met conditions where; OPV is a typical p-type semiconductor with high optical gain, and C60 is a typical n-type semiconductor with high electron mobilities and large absorption cross-sections. They surrounded locally formed CT complexes containing narrow bandgaps with hosts of high levels of energy to behave as artificial light-harvesting systems. They captured the resulting excitation light energy using hosts to deliver to the CT complexes for their function as exciton funnels in order to benefit lasing actions. Wang et al. expect the preliminary results to offer in depth understanding of exciton funneling in light-harvesting systems to develop high-performance organic lasing devices. The new results are now available on Science Advances. Organic semiconductor lasers that function across the full visible spectrum are of increasing interest due to their practical applications from multiband communication to full-color laser displays. Although they are challenging to attain, electrically pumped organic lasers can advance the existing laser technology to rival organic light-emitting diodes. Wang et al. formed localized CT complexes by adding a small amount of electron acceptor/donor into the electron donor/acceptor host matrix. The setup contained CT complexes with a narrow bandgap, surrounded by the host matrix with high energy levels to serve as artificial light harvesting antennas. The harvested excitation light energy produced excitons, which were transferred downstream to the acceptors to function as an ‘excitation funnel.” In the present work, Wang et al. investigated the process of exciton funneling in light-harvesting systems to offer guidance to design high performance organic optoelectronic materials for electrically pumped lasers. , Nature Nanotechnology © 2019 Science X Network Organic solid-state lasers are essential for photonic applications, but current-driven lasers are a great challenge to develop in applied physics and materials science. While it is possible to create charge transfer complexes (i.e. electron-donor-acceptor complexes among two/more molecules or across a large molecule) with p-/n- type organic semiconductors in electrically pumped lasers, the existing difficulties arise from nonradiative loss due to the delocalized states of charge transfer (CT). In a recent report, Kang Wang and a team of researchers in the departments of chemistry, molecular nanostructure and nanotechnology in China demonstrated the enduring action of CT complexes by exciton funneling in p-type organic microcrystals with n-type doping. Citation: Designing light-harvesting organic semiconductor microcrystals with wavelength-tunable lasers (2019, June 25) retrieved 18 August 2019 from https://phys.org/news/2019-06-light-harvesting-semiconductor-microcrystals-wavelength-tunable-lasers.htmllast_img read more

Showcasing stunning crafts

first_imgOne can welcome the new year by visiting an exciting  crafts mela as the Dastkari Haat Samiti is going to hold the 30th edition of its annual Dastkari Haat Craft Bazaar, where more than 170 craftsmen from villages, towns and cities across India will be bringing together different crafts to the national Capital. The mela which will begin from Jan 1, 2016 at Dilli Haat, will highlight crafts like shell craft, basketry, mat weaving, handloom textile weaving, hyacinth grass weaving and jewellery, which are crafted by the craftsmen of Myanmar.  Also Read – ‘Playing Jojo was emotionally exhausting’The group of women will exhibit the world famous Pathein umbrellas, puppets, velvet slippers, lacquer work and jade items. The mela will be held in collaboration with Dastkari Haat Samiti and supported by Ministry of External Affairs, Embassy of India in Myanmar, Corriandar Leaf, Yangon and Air India.  Myanmar craftsmen will also be  at Dilli Haat for a crafts and skill development workshop. The crafts mela promises to be one of its kind, where new design developments will take place in collaboration with craftsmen from Myanmar and India.  Also Read – Leslie doing new comedy special with NetflixThere will also be live demonstration of the weaving looms, from more than 12 states along with National and state-awardees from Bihar, Gujarat, Jammu Kashmir, Jharkhand, Chhattisgarh, Rajasthan, Himachal Pradesh and others. A unique feature of the crafts mela will be that the visitors will be able to interact, learn, appreciate and explore Indian and Burmese handicrafts and textiles. The entire fortnight’s collaboration will result in new product designs, long term friendships and shall provide unique inputs to the crafts sector while enhancing economic wellbeing and diplomatic ties at the ground level. Jaya Jaitly said, “The Samiti has constantly worked towards expanding opportunities for craftsmen as conservationists of Indian heritage. The Samiti’s artisan-members have travelled all over and collaborated with local artisans in other developing nations to create utility-based and market-friendly products. We aim similar participation for the Myanmar crafts as well.”  The opportunity provided by the Samiti has enabled many members to travel across the globe and collaborate with artisans in other developing nations, creating products that are utility-based and market-friendly.The folk and cultural performances, which will take place between 11 am and 8 pm, will showcase a myriad of folk music from Rajasthan, the exotic Kalbelia gypsy dance, Langa group, Bhavai performers with a number of earthen pots balanced on their head and the tribal martial Chhau dancers from West Bengal. With elements like these, the crafts bazaar by Dastkari Haat Samili promises to be a cultural treat. Jaya Jaitly, Founder Dastkari Haat Samiti, has been working relentlessly with diverse craftsmen across the country to produce beautiful, economical and purposeful crafts, for more than four decades. A strong propagator of bringing Indian goods to the forefront, she has been innovating newer ways to sustain crafts and its practitioners. To give credence to her philosophy, Jaitly also Founded the immensely popular Dilli Haat, where she organises the eagerly awaited yearly cafts mela.When: January 1 to 15Where: Dilli Haat, opp INA Market, New Delhi Timings: 11am – 9pmlast_img read more

UN Global Working Group on Big Data publishes a handbook on privacypreserving

first_imgOn Monday, the UN Global Working Group (GWG) on Big Data published UN Handbook on Privacy-Preserving Computation Techniques. This book talks about the emerging privacy-preserving computation techniques and also outlines the key challenges in making these techniques more mainstream. Motivation behind writing this handbook In recent years, we have come across several data breaches. Companies collect users’ personal data without their consent to show them targeted content. The aggregated personal data can be misused to identify individuals and localize their whereabouts. Individuals can be singled out with the help of just a small set of attributes. This large collections of data are very often an easy target for cybercriminals. Previously, when cyber threats were not that advanced, people used to focus mostly on protecting the privacy of data at rest. This led to development of technologies like symmetric key encryption. Later, when sharing data on unprotected networks became common, technologies like Transport Layer Security (TLS) came into the picture. Today, when attackers are capable of penetrating servers worldwide, it is important to be aware of the technologies that help in ensuring data privacy during computation. This handbook focuses on technologies that protect the privacy of data during and after computation, which are called privacy-preserving computation techniques. Privacy Enhancing Technologies (PET) for statistics This book lists five Privacy Enhancing Technologies for statistics that will help reduce the risk of data leakage. I say “reduce” because there is, in fact, no known technique that can give a complete solution to the privacy question. #1 Secure multi-party computation Secure multi-party computation is also known as secure computation, multi-party computation (MPC), or privacy-preserving computation. A subfield of cryptography, this technology deals with scenarios where multiple parties are jointly working on a function. It aims to prevent any participant from learning anything about the input provided by other parties. MPC is based on secret sharing, in which data is divided into shares that are random themselves, but when combined it gives the original data. Each data input is shared into two or more shares and distributed among the parties involved. These when combined produce the correct output of the computed function. #2 Homomorphic encryption Homomorphic encryption is an encryption technique using which you can perform computations on encrypted data without the need for a decryption key. The advantage of this encryption scheme is that it enables computation on encrypted data without revealing the input data or result to the computing party. The result can only be decrypted by a specific party that has access to the secret key, typically it is the owner of the input data. #3 Differential Privacy (DP) DP is a statistical technique that makes it possible to collect and share aggregate information about users, while also ensuring that the privacy of individual users is maintained. This technique was designed to address the pitfalls that previous attempts to define privacy suffered, especially in the context of multiple releases and when adversaries have access to side knowledge. #4 Zero-knowledge proofs Zero-knowledge proofs involve two parties: prover and verifier. The prover has to prove statements to the verifier based on secret information known only to the prover. ZKP allows you to prove that you know a secret or secrets to the other party without actually revealing it. This is why this technology is called “zero knowledge”, as in, “zero” information about the secret is revealed. But, the verifier is convinced that the prover knows the secret in question. #5 Trusted Execution Environments (TEEs) This last technique on the list is different from the above four as it uses both hardware and software to protect data and code. It provides users secure computation capability by combining special-purpose hardware and software built to use those hardware features. In this technique, a process is run on a processor without its memory or execution state being exposed to any other process on the processor. This free 50-pager handbook is targeted towards statisticians and data scientists, data curators and architects, IT specialists, and security and information assurance specialists. So, go ahead and have a read: UN Handbook for Privacy-Preserving Techniques! Read Next Google employees filed petition to remove anti-trans, anti-LGBTQ and anti-immigrant Kay Coles James from the AI council Ahead of Indian elections, Facebook removes hundreds of assets spreading fake news and hate speech, but are they too late? Researchers successfully trick Tesla autopilot into driving into opposing traffic via “small stickers as interference patches on the ground”last_img read more

Cruise vision spans the next decade

first_imgThe NSW government’s events and tourism planning body, Destination NSW, has hired private consultancy MI Associates to work in collaboration to build a 10 year vision for cruising in NSW.The 10 year cruise initiative, which is a recommendation of the NSW government’s Visitor Economy Industry Action Plan, comes after the Australian cruise industry was identified as the number one industry in the world by growth and penetration by the Cruise Lines International Association Australasia.Deputy Premier and Tourism Minister Andrew Stoner said that the plan would help set up the cruise industry for the future.“The plan, to be developed in consultation with industry, will forecast the growth in cruise ship arrivals and passenger numbers to ensure NSW is equipped to capture a larger share of the economic benefits, including providing food and other supplies to cruise ships, pre and post-cruise tours for passengers and developing financial models to identify capacity and infrastructure needs,” Deputy Premier Stoner said.Deputy Premier Stoner also said that the government would help ensure the NSW cruise industry has the infrastructure, stevedoring and ground touring arrangements it needs so it can exploit the massive growth in interest in cruise travel.Source = ETB News: Tom Nealelast_img read more

March 11 2013Congratulations to the February 3 2

first_imgMarch 11, 2013Congratulations to the February 3. 2013 workshop participants upon their graduation:[from left] Stephen Stringer, Alex Rolland, Erin O’Loughlin continues as a  planning intern, Dario Fratini from Italy also continues with a planning intern.[photo: Mitzy Strebel]last_img

US Shuts Down Huge Online Dark Web Market AlphaBay

first_img U.S. Shuts Down Huge Online Dark Web Market, AlphaBay The site was used by ‘hundreds of thousands’ of people to buy and sell illegal goods and services, such as drugs, stolen IDs, malware and other hacking tools. Free Webinar | Sept 5: Tips and Tools for Making Progress Toward Important Goals Reporter Next Article –shares Internet This story originally appeared on PCMag Attend this free webinar and learn how you can maximize efficiency while getting the most critical things done right.center_img Angela Moscaritolo Image credit: PCMag 3 min read The cybercriminal underground took a hit this week with the shutdown of internet black market AlphaBay.The Justice Department seized AlphaBay, which operated for more than two years and was a “major source of fentanyl and heroin,” the agency says.The site was used by “hundreds of thousands” of people to buy and sell illegal goods and services, such as drugs, stolen and fraudulent identification documents and access devices, counterfeit goods, malware and other hacking tools, firearms and toxic chemicals, according to the DOJ. Authorities say “multiple overdose deaths across the country” have been attributed to drugs purchased on the site.The U.S. seized AlphaBay’s infrastructure with the help of law enforcement authorities in Thailand, the Netherlands, Lithuania, Canada, the UK and France, as well as the European law enforcement agency Europol.Thai authorities on July 5 arrested a 25-year-old Canadian citizen, Alexandre Cazes aka Alpha02 and Admin, on behalf of the U.S. Authorities say Cazes was the “creator and administrator” of AlphaBay. On July 12, Cazes “apparently took his own life while in custody in Thailand,” the Justice Department says.Cazes had been charged in a 16-count indictment with conspiracy to: commit identity theft, engage in racketeering, distribute narcotics, commit access device fraud and launder money. The other charges included distribution of narcotics, unlawful transfer of false identification documents and trafficking in device making equipment.According to the DOJ, Cazes and his wife “amassed numerous high-value assets, including luxury vehicles, residences, and a hotel in Thailand,” plus “millions of dollars in cryptocurrency,” which has been seized by the FBI and Drug Enforcement Administration.Prior to its takedown, the site had more than 100,000 users and 40,000 vendors. AlphaBay was even larger than Silk Road, which was seized by law enforcement in November 2013.”This is likely one of the most important criminal investigations of the year — taking down the largest dark net marketplace in history,” Attorney General Jeff Sessions said in a statement. “I believe that because of this operation, the American people are safer — safer from the threat of identity fraud and malware, and safer from deadly drugs.”The takedown of AlphaBay coincided with efforts by Dutch law enforcement to dismantle another prominent dark web market called Hansa Market, which was also used to sell illegal drugs, malware and counterfeit ID documents. July 21, 2017 Add to Queue Register Now »last_img read more

United Airlines Bonus Lottery Was Doomed to Fail Dont Make the Same

first_img United Airlines’ Bonus Lottery Was Doomed to Fail. Don’t Make the Same Mistake With Your Team. Learn how to successfully navigate family business dynamics and build businesses that excel. Free Webinar | July 31: Secrets to Running a Successful Family Business Director of Client Services at Arena Communications –shares A few days ago, United Airlines CEO Scott Kirby announced a new incentive program that would eliminate the company’s bonus structure and replace it with a lottery,  where one lucky employee would win $100,000 and a handful of others would have a shot at a Mercedes or a vacation. Immediately, legacy employees went on the record voicing concerns, with one union leader stating that “no team-oriented reward should be dictated by lottery.”Related: How to Incorporate This One Employee Perk to Improve Your BusinessUnfortunately, I wasn’t shocked by this news, because I’ve seen this trend become increasingly popular with the companies I’ve worked with and for. For whatever reason, employers have decided that employees care more about games and having toys at work than getting more money for doing great work. Just a few days later, United determined that its plan was a bust and Kirby recgonized that he misjudged how this news would be received by employees. In the next few years, I believe there will be a continued backlash against open offices, toys and useless perks enticing potential and current employees. Having a shot at a ton of money in a lottery is fun, but it’s not helpful if you don’t have a clear career trajectory, aren’t paid well, don’t know when or how you’ll be rewarded, and don’t feel valued at work.I recently talked to a few of my friends I grew up with who complained about feeling like their cool and exciting tech jobs weren’t fulfilling in ways that they had hoped. They couldn’t understand why their company was focusing more on giving away expensive swag than giving away raises and opportunity. I also had another friend tell me over the holidays, “I got a really cool Christmas present from my boss, but I don’t really understand what my future holds at this company. I’ve asked and it’s still very unclear.” In this case, a gift was given instead of the necessary clarity to keep an employee engaged.Related: 3 Signs That Job Candidates May Eventually Abuse Your Company’s Employee BenefitsIf you want your company to scale and you want to be able to hire and keep any employees under 35, focus less on perks, rewards and entitlements and more on how to show respect to your employees. Respect comes in many forms and may be different for your employees based on your industry. For me, respect comes in the form of thoughtful feedback, professional development, mentorship, clear and scheduled opportunities for growth, and competitive compensation. I get more questions from young people I manage about understanding what is next for them than anything else. By creating a clear path to more opportunity, you will get more loyalty from your employees.Gone are the days of doing work well, making a company more money, and sticking around in the hopes of maybe getting a raise or promotion down the road. Companies don’t provide the same loyalty that they used to, and employees don’t need to either. One of my past coworkers left her job at Google because she felt that all of the perks were just there to keep her at work longer. She took a pay cut and moved to a much less prestigious company because she wanted respect outside of her working hours. It’s important to give your employees options to take a break at work, but treating your employees like the adults they are will only help your company and increase loyalty.Related: 5 Reasons Enhanced Benefits Programs Are Good for BusinessIf you want to know what your employers need or want, try asking them what they’d change about the culture of your workplace. I doubt the answer will be, “We need a Ping-Pong table” or, “I’d love to have my name picked out of a hat for a bonus” but instead, “I don’t understand what I need to do to get promoted or a raise,” “I’d love to be able to attend a conference to learn more about our industry” or, “I would love a mentor who could help guide me.”If your employees want to play the lottery, they have that option outside of work. Adults don’t want to play games at work, and United Arilines found that out the hard way. We don’t need toys; we want job satisfaction. And most importantly, employees want predictability. Register Now » Employee Benefits Brittany Larsen Add to Queue 4 min read Guest Writer March 7, 2018 Opinions expressed by Entrepreneur contributors are their own. Next Article Your employees don’t want rewards — they want respect. Image credit: Andrew Harrer | Getty Imageslast_img read more

Mario Batalis Eataly Forced to Close Wine Store for Six Months

first_img –shares 2 min read Next Article Apply Now » 2019 Entrepreneur 360 List Soon, patrons of the Italian specialty food mecca Eataly in New York City won’t be able to wash down their sumptuous pizza or pasta dishes with a crisp glass of Pinot Grigio.The market and restaurant hybrid, owned by celebrity chef and noted Crocs lover Mario Batali, just received a slap on the wrist from the New York State Liquor Authority.Eataly was found to be in violation of a code that prohibits businesses from concurrently operating a wine store while importing or manufacturing one’s own wines.While its wine shop boasts over 1,000 labels from exclusively Italian producers, Eataly also happens to carry Bastianich wines — a conflict as Batali’s partners in Eataly include the mother and son Italian chef duo, Lidia and Joe Bastianich.Related: Pushing Ahead With Classy Makeover, 7-Eleven Sells Fine WineAfter having initially pleaded not guilty to charges of “suppressed information” regarding inequitable business interests, reports Crain’s, Eataly has now agreed to cough up a $500,000 fine, and shutter its wine store for six whole months.Ms. Bastianich’s name will also be removed from Eataly’s liquor license.Together the trio operates the Batali & Bastianich Hospitality Group, which comprises roughly 20 restaurants across the country, as well as Eataly locations in New York and Chicago.And this isn’t their first brush with the law. In 2012, Batali and Mr. Bastianich settled a lawsuit to the tune of $5.25 million against 117 servers, busboys and other employees who alleged that the company had pilfered their tips.Related: On the Rocks: Jack Daniel’s and Liquor Giant Diageo Feud Over ‘Tennessee Whiskey’ Geoff Weiss March 27, 2014 The only list that measures privately-held company performance across multiple dimensions—not just revenue. Former Staff Writer Add to Queue Mario Batali’s Eataly Forced to Close Wine Store for Six Months Legallast_img read more

Drone Owners Will Soon Have to Register With the Federal Government

first_img Staff Writer. Covers leadership, media, technology and culture. –shares Learn from renowned serial entrepreneur David Meltzer how to find your frequency in order to stand out from your competitors and build a brand that is authentic, lasting and impactful. Over the last several months, drones have caused all kinds of mischief, from fights between neighbors to arrests. Local governments have even been passing new laws to clamp down on dangerous drone use.With those incidents in mind, officials at the Department of Transportation and the Federal Aviation Association announced today that they will soon require drone owners and operators to register their unmanned aerial systems (UAS) with the federal government in an effort to promote safer flying. While commercial drone operators are currently required to register, the new rules would apply to everyday hobbyists as well.The announcement comes after a summer that saw a campaign from the FAA specifically urging hobbyist drone operators to stay away from wildfires as to not impede firefighting operations. And while pilots reported 238 sightings of drones in 2014, according to the FAA, there had been 650 sightings by early August of this year.Related: Man Arrested After Crashing Drone at U.S. OpenEarlier this month, FAA Deputy Administrator Michael G. Whitaker testified before the House Transportation and Infrastructure Committee, remarking that the agency’s “preference is for people to voluntarily comply with regulations, but we won’t hesitate to take strong enforcement actions against anyone who flies an unmanned aircraft in an unsafe or illegal manner.”  He also noted that the FAA had “investigated several hundred incidents of UAS operating outside of existing regulations.”To that end, the DOT and FAA are appointing a task force of government officials, drone industry representatives and hobbyists to suggest which drones should be required to register. Transportation Secretary Anthony Foxx is giving the task force until Nov. 20 to deliver their report so that the system can be in place before the holiday season, as drones are expected to be hot-ticket gift item this year. As to how many drones are actually out there at the moment, a staggering 1 million is the number that has come up a lot in rough estimates, according to the Washington Post.  Not only that, but the Consumer Electronics Association predicted over the summer that the drone industry will bring in about $105 million in sales this year – up more than 50 percent from revenue in 2014 – and sell about 700,000 individual units by the end of 2015, up 63 percent from last year. Related: What the Heck Are Drones Good For, Anyway  Image credit: Pixabay 2 min read Nina Zipkin Entrepreneur Staff Fireside Chat | July 25: Three Surprising Ways to Build Your Brand Add to Queue Drone Owners Will Soon Have to Register With the Federal Government Drones Next Article Enroll Now for $5 October 19, 2015last_img read more

New naturally lowcaffeine option for tea drinkers

first_imgReviewed by Alina Shrourou, B.Sc. (Editor)Nov 8 2018Tea drinkers who seek the popular beverage’s soothing flavor without its explosive caffeine jolt could soon have a new, naturally low-caffeine option. In a study appearing in ACS’ Journal of Agricultural and Food Chemistry, scientists report that a recently discovered wild tea plant in China contains little or no caffeine and, unlike many industrially decaffeinated products, could potentially provide many of the health benefits of regular brewed teas.In 2017, Americans drank nearly 4 billion gallons of tea, according to the Tea Association of the USA. The association estimates that up to 18 percent of those drinks were decaffeinated. To decaffeinate tea, manufacturers often use supercritical carbon dioxide or hot water treatments. However, these methods can affect the brew’s flavor and destroy compounds in the tea associated with lowered cholesterol, reduced risk of heart attack or stroke, and other health benefits. Recently, scientists discovered hongyacha (HYC), a rare wild tea found in the mountains of southern China. Local residents believe it can it can cure colds, soothe stomach pain and relieve a host of other ailments. But little is known about its structural makeup or its chemical composition. Liang Chen and colleagues sought to close that gap.The researchers used high-performance liquid chromatography to analyze HYC buds and leaves collected during the growing season. In addition to finding several potentially health-promoting compounds not found in regular tea, they determined that HYC contains virtually no caffeine. Digging deeper, they found this was because of a mutation in the gene encoding the enzyme tea caffeine synthase, which promotes caffeine production in most tea plants. The researchers conclude that naturally low-caffeine HYC could possibly become a popular drink because of its distinct composition and unique health benefits.Source: https://www.acs.org/content/acs/en/pressroom/presspacs/2018/acs-presspac-november-07-2018/newly-discovered-naturally-low-caffeine-tea-plant.htmllast_img read more

HC stays NGT penalty on TN govt

first_imgjudiciary (system of justice) COMMENT April 09, 2019 SHARE SHARE EMAIL COMMENTS Published oncenter_img Tamil Nadu water pollution SHARE The Madras High Court on Tuesday granted an interim stay on the ₹100-crore penalty imposed by the National Green Tribunal (NGT), South Zone, on the Tamil Nadu government for its failure to restore the Adyar and Cooum rivers and the Buckingham canal.Directing the government to pay the penalty to the Central Pollution Control Board (CPCB), the tribunal said the money shall be used for restoring the water bodies.A division bench comprising Justice R Subbiah and Justice Krishnan Ramasamy was hearing a petition of the government against the NGT order dated February 13 this year.The government submitted that despite details handed over to the tribunal over the restoration of the waterways, it had passed the order directing payment of ₹100 crore.The order lacks non-application of mind and was based on mistake of facts and contrary to the principles of natural justice and was arbitrary and unreasonable, the government said.The NGT had passed the order on a batch of pleas, including one moved by social activist Jawahar Shanmugam seeking direction to the state to restore and revive the water bodies.Adyar and Cooum are two of the most polluted rivers to flow through any major urban agglomeration anywhere in the world and the Tamil Nadu government is accountable for the situation, the tribunal had observed in its order.last_img read more