Month: August 2019

Porphyrins can be covalently attached to graphene edges

first_img 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 After doping the substrate with CO, the STM images showed that some of the porphines had a protruding center that shows up as a bright spot. These protrusions were likely CO molecules attached to the metal center of the tetrapyrrole. This means that an Ag atom was coordinated to the tetrapyrrole center demonstrating that even when covalently bound to graphene, the porphine maintained its metal-coordination properties. Additional tests showed that the conductivity of graphene at the edges where the porphines were attached did not change substantially. The thermal stability of the graphene-porphine structure was tested by gradually annealing the sample. The authors note that there was a 17% increase in the percentage of molecules bound to graphene after annealing the sample up to 770 K. Graphene is annealed to Ag(111) at 900 K. When the thermal stability test was taken to this temperature, He, et al. still observed prophines bound to the graphene edges, particularly porphines that have three and four carbons bonded to the graphene edge.This study demonstrated a controlled and precise way to attach tetrapyrrole structures to graphene edges. This has important implications for further research in molecular electronics, sensors, and catalysis. Researchers use microwaves to produce high-quality graphene Credit: Willi Auwärter et al. (Phys.org)—Researchers from Technische Universität München in Germany have succeeded in covalently binding porphine to the edge of a graphene sheet on a Ag(111) substrate using surface-assisted covalent coupling. This provides a proof-of-principle that graphene edges can be functionalized with tetrapyrroles in a precise manner. Furthermore, their work shows that the graphene-porphine structure maintains its electronic and metal-binding properties. Their work appears in Nature Chemistry. “Our findings open new perspectives for the controlled functionalization of graphene nanostructures and the embedding of porphines in graphene sheets,” comments Professor Willi Auwärter who co-authored this study. “We are excited by the potential of the resulting structures to catalyze distinct chemical reactions and anticipate applications in molecular electronics, sensing and optoelectronics.”Tetrapyrroles, molecules that contain the heterocyclic five-member pyrrole ring, are key structures for several important biological molecules. Hemoglobin and chlorophyll, for example, are tetrapyrroles known as porphyrins. Porphyrins coordinate a metal in the center of the tetrapyrrole ring. Additionally, tetrapyrroles are stable molecules that can accommodate a variety of functional groups. Their delocalized electron framework, as well as their metal-binding properties, makes them an interesting study for molecular electronics.In this study, porphine, the simplest tetrapyrrole, was covalently bound to a graphene edge. While prior studies by other groups have linked porphyrins to graphene sheets, they have done so using a more traditional chemistry route in which graphene oxide is reacted with the porphyrin in solution. This leads to a mixture of products and poor control over the porphyrin’s attachment points, which is not conducive to the precision necessary for molecular electronics. He, et al. used surface-assisted coupling to covalently link porphine to graphene. They chose an Ag(111) substrate because of their experience with surface-assisted dehydrogenation reactions with porphines and because Ag(111) only weakly interacts with graphene. According to the research paper, the goal was to use the surface both as a platform for graphene synthesis and to mediate the coupling reaction. The graphene edges needed to be clean and well-defined and the reaction with the porphine needed to be precise and controlled. The Ag(111) allows for this.Once the graphene was grown on the Ag(111) surface, free-base porphines were vapor deposited at room temperature and then the surface was heated to over 620 K to induce the coupling reaction. Scanning tunneling microscopy (STM) and non-contact atomic force microscopy (AFM) with a CO-functionalized tip showed that individual porphines appeared to be covalently linked to the graphene edges. Their studies showed that porphine bonding occurred in four configurations: 1) One C-C bond between the porphine and the graphene edge at the β position on the pyrrole; 2) two C-C bonds between the β pyrrole carbons and the graphene sheet; 3) three C-C bonds, one on a β pyrrole carbon, one bonded to the carbon between two of the pyrroles, and the other on a second β pyrrole position; 4) four C-C bonds with a similar pyrrole-carbon-pyrrole bonding structure as configuration 3, but with an additional C-C on one of the pyrroles. More information: Yuanqin He et al. Fusing tetrapyrroles to graphene edges by surface-assisted covalent coupling, Nature Chemistry (2016). DOI: 10.1038/nchem.2600AbstractSurface-assisted covalent linking of precursor molecules enables the fabrication of low-dimensional nanostructures, which include graphene nanoribbons. One approach to building functional multicomponent systems involves the lateral anchoring of organic heteromolecules to graphene. Here we demonstrate the dehydrogenative coupling of single porphines to graphene edges on the same metal substrate as used for graphene synthesis. The covalent linkages are visualized by scanning probe techniques with submolecular resolution, which directly reveals bonding motifs and electronic features. Distinct configurations are identified that can be steered towards entities predominantly fused to graphene edges through two pyrrole rings by thermal annealing. Furthermore, we succeeded in the concomitant metallation of the macrocycle with substrate atoms and the axial ligation of adducts. Such processes combined with graphene–nanostructure synthesis has the potential to create complex materials systems with tunable functionalities. Journal information: Nature Chemistry Citation: Porphyrins can be covalently attached to graphene edges (2016, September 12) retrieved 18 August 2019 from https://phys.org/news/2016-09-porphyrins-covalently-graphene-edges.html © 2016 Phys.orglast_img read more

KFC To Test PlantBased Meatless Chicken

first_imgKFC To Test Plant-Based ‘Meatless Chicken’ In… John Bazemore by NPR News Scott Neuman 8.27.19 5:02am KFC is set to serve meatless chicken for the first time — testing the new menu items on Tuesday at a single restaurant location in the Atlanta area.The Louisville, Ky.-headquartered Kentucky Fried Chicken, which is a subsidiary of Yum! Brands, Inc., says it will offer “plant-based chicken” developed in partnership with the California startup Beyond Meat. The new menu items, which will come in the form of nuggets and boneless wings, will be debuted at a restaurant in the Atlanta suburb of Smyrna.”KFC Beyond Fried Chicken is so delicious, our customers will find it difficult to tell that it’s plant-based,” Kevin Hochman, president and chief concept officer, KFC U.S., said in a statement. “I think we’ve all heard ‘it tastes like chicken’ – well our customers are going to be amazed and say, ‘it tastes like Kentucky Fried Chicken!'”The company, which didn’t immediately release nutritional information on the meatless chicken items, said customer feedback from the Atlanta trial “will be considered as KFC evaluates a broader test or potential national rollout.”The KFC trial follows Burger King’s market test of the Impossible Whopper, a plant-based hamburger developed by Impossible Foods, a Beyond Meat rival, earlier this year. It led Burger King to roll out the burger to more than 7,000 of its restaurants earlier this month.KFC’s meatless trial also comes amid a growing consumer trend away from meat products and toward alternatives, such as plant-based meats. Euromonitor reports that global sales of meat substitutes were at $19.5 billion in 2018 and that U.S. sales are expected to reach $2.5 billion by 2023.”Veganism as a trend has really blown up,” KFC Innovation Director Jack Hinchcliffe told The Telegraph in March.Environmentalists argue that agriculture is responsible for up to 30% of greenhouse gas emissions and that much of that comes from meat production.Beyond Meat, which introduced its first product in 2012, makes plant-based burgers, sausages and meat crumbles that are sold in many grocery stores and supermarkets.Copyright 2019 NPR. To see more, visit NPR.last_img read more

Pretty naturally

first_imgSummer is gone now, so all the amazing pop colours that you might have invested in for your makeup arsenal is going to go on a well deserved sabbatical. While in the grey monsoons, it is quite a craving to colour up the day with something bright – but as fashion experts would tell you – the colour should be in your clothes and accessories this season, not in the makeup. This season, go natural. The nude makeup look is polished and pretty and because you’re simply boosting your skin tone, it’ll never appear as if you tried too hard. Also Read – ‘Playing Jojo was emotionally exhausting’Nude should not mean the same thing to all people. Picking flashy colors that complement your complexion will prevent you from looking washed-out. That means honey and taupe for fair skin; tawny and caramel for medium; chocolate, gold and terra-cotta for dark, says makeup expert Nidhi Khurana.For nude makeup we should always start with primer and most importantly use mascara first and last. Depending up on your skin tone, use peach undertone; for fair skin. For medium complexions, pinks and caramels for darker skin tones. Choose a foundation that is slightly lighter than your skin tone and apply to the rounded parts of your face: cheeks, bridge of the nose, chin and forehead. Use powder blushes, highlighters and a soft brush to contour around the hairline, and the outer perimeter of the face.For ideal nude eye apply matted eyes colours like pink, peach and caramel. It gives eyes very nude yet classy look. For lips to look natural you can choose a gloss or a matted lip stick.last_img read more

Classical at its best

first_imgIt was the time when all the classical dance lovers witnessed a great talent in the Capital. Renowned Kuchipudi exponent Meenu Thakur and her disciples performed live at the event Feel India, an initiative of Incredible India and IDTC on 24 April at Hotel Ashok. The performance encompassed a mosaic of classical Kuchipudi pieces however the major attraction of the event was Tarangam performed by Thakur enthralling the present audience and eliciting appreciation and applause from  them. The artistes were later felicitated by ITDC.Thakur is one of the leading Kuchipudi dance exponents. She has flair and grace for an efflorescent dance style Kuchipudi. Her style represents a combination of the feature of Purusha Sampradaya (original male dance tradition) of  Kuchipudi and its Anuroopa (transformation of the male dance style into female interpretation). She has excellent command over technique and abhinaya.last_img read more

Calcutta HC stays Panchayat poll processes till April 16

first_imgKolkata: Calcutta High Court on Thursday directed all processes of the West Bengal rural polls to be suspended till April 16, when the State Election Commission (SEC) will submit a report on the measures it has taken to ensure peaceful filing of nominations by the Opposition.Justice Subrata Talukdar also imposed a fine of Rs 5 lakh on the BJP for misrepresentation, likening the party’s conduct to “forum hopping” after the saffron brigade approached both the high court and the Supreme Court on similar pleas. The state government has decided to move the division Bench of the high court on Friday challenging the single Bench’s verdict. Also Read – Heavy rain hits traffic, flightsThe high court has ordered the SEC to submit on April 16 a comprehensive status report on the poll process, detailing the number of nominations filed and the percentage of nominations rejected, amongst other information.Trinamool counsel and party MP, Kalyan Banerjee, argued both inside the court and outside that according to Article 243-O of the Constitution, courts do not have right to interfere in electoral matters after the election process has begun. Also Read – Speeding Jaguar crashes into Merc, 2 B’deshi bystanders killed”We are approaching a Division Bench against this order,” said Banerjee.The BJP had already moved a caveat before the Division Bench of Justice Biswanath Somadder and Arindam Mukherjee where the TMC is supposed to move their petition challenging the single Bench order.It is learnt that Justice Talukdar will take a decision on resuming the poll process after getting the SEC’s report.Trinamool Congress secretary general Partha Chatterjee said the Opposition has nothing to rejoice as the people of Bengal are with the TMC and its development agenda. “We have full faith in the judiciary. They are trying to delay the election process as they have no organisational strength. Elections will be held today or tomorrow and then it will be proved clearly that the people of the state have full faith in our development agenda. The changes that we have brought about will reflect in the vote box,” Chatterjee said. It may be mentioned that Justice Talukdar’s order came in the wake of a petition moved by the Bengal unit of the BJP, alleging that the ruling Trinamool Congress has resorted to violence to prevent their candidates from filing nominations for the forthcoming Panchayat polls.The Congress welcomed the high court orders. “I salute the high court. At least they are listening to our agony when the government, police and even the State Election Commission are turning a deaf ear to our pleas,” said state Congress president Adhir Chowdhury.”We welcome the decision of the Calcutta High Court,” said MoS heavy industry and Lok Sabha MP Babul Supriyo.Left Front chairman Biman Bose said the verdict of the single Bench has proved that the allegations that we have made are genuine.Elections are scheduled to be held in three phases from May 1, 3 and 5 with the counting happening on May 8. The filing of nominations for the Panchayat polls began on April 2 and ended on April 9. Scrutiny of nominations took place on April 11. The withdrawal of nomination had started on Thursday and with the high court’s order, the process has been stalled.last_img read more

State buys 19 acres of land the highest ever through Direct Land

first_imgKolkata: In a major success of Chief Minister Mamata Banerjee’s “Direct Land Purchase Policy”, the Bengal government has become successful in purchasing 19 acres of land in South 24-Parganas, the highest in the state so far, with the consent of 229 landowners.Banerjee, who had fought for the rights of farmers in Singur where 997 acres of agricultural land was acquired to set up Tata’s small car factory, has assured that her government will never go for “forcible acquisition of land” and the Direct Land Purchase Policy was introduced enabling the government to purchase plots directly from its owners with their consent to develop “infrastructure including roads, railways, bridges, food godowns, drinking water, flood protection works and other similar projects”. Also Read – Heavy rain hits traffic, flightsThe direct purchase of 19 acres of land at Gosaba and Gadkhali in South 24-Parganas has been done only after getting the consent from 229 landowners and is a “great success of the land purchase committee headed by the District Magistrate” when there has been a lot of trouble over setting up of power grid sub-station at Bhangar in the same district. The land has been purchased by the state government through the district authorities to ensure completion of the construction of a bridge over river Bidya connecting Gadkhali and Gasaba Bazar. A portion of the purchased land in Gadkhali while remaining part of the 19 acres is on the other side of the river at Gasaba Bazar. Construction of the bridge is a major project as it will ensure road connectivity with islands in the Sunderbans and the mainland. Also Read – Speeding Jaguar crashes into Merc, 2 B’deshi bystanders killedThe land was purchased from its owners at a rate of Rs 40 lakh per acre and has been registered in the name of the state government. The landowners have been provided with very lucrative money even though their lands were located in such a remote area. The officials have approached the landowners and explained in detail the need of the land in that location. According to an official, the landowners have realised that construction of the bridge is essential for the development of the region that would ensure connectivity with the mainland and at the same time also ensure economic development of the area. “The landowners were given sufficient time to take their decision after explaining the purpose behind purchasing the same. Finally, they were convinced and the consent letter was obtained from 229 landowners,” the official said adding that this is for the first time when 19 acres of land has been directly purchased. The official further explained that the Direct Land Purchase Police is effective in terms of completion of projects as it used to get delayed for non-availability of “small parcels of land”. It helped in the timely completion of projects and proper utilisation of the “public funds”.last_img read more

Family members accuse Green Park Nursing Home of baby swapping

first_imgKolkata: Green Park Nursing home in the city has been accused of baby swapping. Sukanta Biswas, a resident of Mukundapur has brought serious charges against the nursing home authorities of swapping his new born baby and lodged a complaint at the local police station. The nursing home is situated at Netai Nagar under Purva Jadavpur police station.After receiving the complaint, police took prompt action and held two officials of the nursing home for interrogation. In his complaint, Biswas mentioned that he brought his wife Tapasi Biswas to the nursing home for delivery on June 20. He said his wife was admitted to the nursing home at around 5.30 pm. Also Read – Heavy rain hits traffic, flightsThe doctor, who was treating the woman, has been attached to the nursing home. The lady doctor told the family members that the operation would be done at around 6.30 pm. The woman gave birth to a boy child at around 7.27 pm. But the family members of the woman was not allowed to see the baby until 9 pm, when the baby was finally produced before Biswas and his family members.The baby had some deformity in his legs and one hand. The family members alleged that the doctor, earlier on the basis of some clinical tests, confirmed that the baby was absolutely fine and he had no such deformities. Also Read – Speeding Jaguar crashes into Merc, 2 B’deshi bystanders killedWhen the family members of the victim raised the issue, the nursing home authorities told them that everything will be alright following a plastic surgery on the baby. Biswas was also advised to take the baby home. The victim’s family members on Thursday staged a demonstration inside the nursing home campus onThursday morning.The family members of the infant took him to NRS Medical College and Hospital, where the baby was denied admission initially. The staff members of the hospital wanted to know from the family members where the delivery was done and who had carried out the operation.Biswas also told the police that his wife had been under the treatment of a lady doctor attached to the private nursing home since November last year. Several tests were performed on the patient from time to time on the basis of which doctor had said the baby was absolutely normal.The family members also alleged that their child had been swapped by some of the staff members of the nursing home immediatelyafter he was born.They also added that after the delivery, one unidentified person came out of the operation theatre with a bag, went straight downstairs and left the nursing home.The family members of the victim have demanded a detailed probe into the incident and stern action against those who will be found guilty.last_img read more

Unique tree on IIT Kharagpur campus attracts botanists from across country

first_imgKolkata: A unique tree on the campus of IIT Kharagpur is now the centre of attraction of botanists all over the country because of its rarity.Botanist Barnali Chakrabarti has stumbled upon a unique 5 in 1 tree. Though the main tree is Bakul (Mimusops), four other varieties like Dumur (Ficus), Neem (Azadirachta), Pipal and Sheora (Streblus) have emerged from certain joints of the same tree.”A blend of two varieties like Assattha (Sacred Fig) emerging from banyan tree or vice-versa or Banyan or Assattha erupting from a Simul tree is not uncommon. But 5 in 1 tree is usually unheard of,” Chakrabarti said. Also Read – Heavy rain hits traffic, flightsAccording to her, the main tree is Bakul (Mimusops). A few feet above the ground from the main stem, two more major trees Dumur (Ficus) and Neem (Azadirachta) have grown as if they are tearing open the Bakul tree stem and coming out. Later, Pipal and Sheora (Streblus) have erupted from the very samejoint at the top.The main Bakul Tree is more than 20 years old, while Dumur and Neem too is more than 10 years old. The last two varieties are relatively new. “There are hundreds of trees on the campus and many of them are unique but this is possibly the most unique one that I have seen,” Chakrabarti said. Also Read – Speeding Jaguar crashes into Merc, 2 B’deshi bystanders killedThe Horticulture section has already enclosed the tree to protect it and a board listing out the names of all the species have been put.”A variety of birds throng the IIT KGP campus because of the greenery all around. When a bird feeds on fruits, it sometimes carries the seeds in its beak or the seeds get stuck to its body parts. As it perches from one tree to another, such a phenomenon may occur.” Chakrabarti added.Barnali Chakrabarti has been promoting green activism on the campus for the past few years. The institute has planted some 3,000 tress on the campus in the last three years and is geared up to plant more trees as soon as monsoon sets in full swing.It may be mentioned that the students of IIT Kharagpur have formed a social group to spread the message of tree conservation and planting trees with deep roots that don’t get uprootedduring storms.last_img read more

Kolkata Police to organise Safe Drive Save Life programme

first_imgKolkata: The Traffic Guard Headquarters of Kolkata Traffic Police will organise a Safe Drive Save Life programme on Friday. The programme will be held at Rangers Club, which senior police officers will be attending.At the same time, in a bid to create awareness on road safety, an inter-school slogan and poster competition was also organised, the final of which is going to be held on Friday. Around 10 students of classes 4 to 12 participated in the same. Also Read – Rain batters Kolkata, cripples normal lifeAn orientation workshop for commuters and drivers will also be organised on Friday. Around 100 people, including 50 drivers of buses, taxis and auto-rickshaws will be attending the workshop. The programme would commence at 12 noon.A video that was prepared by the officers of the Traffic Guard Headquarters to create awareness on road safety, will be shown to the drivers in the orientation workshop. The video was selected as the third best in a competition organised by Kolkata Police.It may be mentioned that Chief Minister Mamata Banerjee had launched the statewide Safe Drive Save Life campaign to check the number of road accidents and it has helped in bringing down the number significantly.last_img read more

Body of 45yearold man found at Bally flat

first_imgKolkata: Mystery shrouds the death of a 45-year-old man whose body was found inside his flat at Bally in Howrah on Monday late night.Police said the victim, Shantanu Chakraborty, was alone in the flat on Saturday as his wife and daughter went to a relative’s house. His wife returned home along with the daughter at night and found him hanging from the ceiling of a room. Locals went to the flat housed on the first floor of the building after hearing the wife’s cry for help and found Shantanu hanging. Also Read – Rain batters Kolkata, cripples normal life They reported the matter to the police. Policemen from Bally police station went to the spot and brought down Shantanu. He was declared brought dead when taken to a nearby hospital. A police officer said they have spotted injury marks on the victim’s legs, which has made the incident mysterious. They are waiting for the autopsy report to ascertain whether it is a case of suicide or homicide. Police spoke to the locals and came to know that the man used to work at a private company. He was ill for the past few days and was also suffering from depression for the past few days.last_img read more

Common myths about modular kitchens busted

first_imgMany people think modular kitchens aren’t durable as the material used is of inferior quality. But this is not true, says an expert. Here are some facts listed by an expert about the myths that are common among people:No scope for customisation: Modular kitchen companies work on the basis of international hardware and accessory sizes, and have a large variety of standard carcass sizes, a combination of which would suit most households. Inferior quality: This is a very common misconception that modular kitchens are not durable as the material used is of inferior quality. Modular kitchens are in fact more sturdy as each cabinet is made as a separate module with all five sides, unlike a kitchen made on site where the local carpenter invariably uses only partitions to create kitchen.  Also Read – Add new books to your shelfThus, a carpenter made kitchen would have just one side to support accessories and hardware while a modular kitchen would have two sides. The client has absolute flexibility to choose the material he wants his kitchen to be fabricated in. A good modular kitchen company would give varied material choices, ranging from particle board to Marine Plywood.Cannot be reused: The entire purpose of creating standard size prefabricated cabinets or modules as we may call it, is to offer the client to relocate without any hassle. If part renovation or change in design is required, it can be done without dismantling the entire kitchen. Only the module, which needs to be replaced or upgraded, would be done away with.  Also Read – Over 2 hours screen time daily will make your kids impulsiveThus, one can always upgrade ones kitchen with the latest accessories or appliances without redoing the entire kitchen, as all carcasses are made in standard sizes to accommodate standard size accessories or appliances later on, if required.Modular kitchen suppliers are devoid of support system: A modular kitchen manufacturer would have an organised after sales support team, as they understand this is not just a product but a service-based industry. The carpenter usually works with a very small unorganised team of helpers, hence it is not possible for him to give as prompt a service as a professional kitchen manufacturer, who is backed by a team of technical support staff, responsible for installations and after sales service. These technicians undergo rigorous training with various European hardware brands on a regular basis to be able to handle all sites and situations with ease. Breeding place for cockroaches: As a matter of fact, modular kitchens are better organised as most cabinets have pull out systems, which helps accessing otherwise dark and inaccessible corners. They can be pulled out easily for better cleaning and upkeep of the kitchen. Modular or not modular, cockroaches would breed wherever there are damp and dark spaces. In case of modular kitchen, however, the dark and damp areas are almost eliminated due to better planning and adding accessories which can be easily pulled out and cleaned.last_img read more

One arrested for running fake coconut oil racket

first_imgKolkata: Baguiati police station has arrested a person from Prafullakanan in Keshtopur for allegedly manufacturing and bottling fake coconut oil using the brand name of a multinational company.According to police, a person identified as Shyamal Saha approached Baguiati police station claiming to be a detective working for a private agency on Wednesday. He said he was authorised by a multinational company to investigate into manufacturing and bottling of fake coconut oil that is being sold in the market using his client Also Read – Rain batters Kolkata, cripples normal lifecompany’s name. Saha informed that he found one Keshto Kamal Sarkar, a resident of Prafullakanan in Keshtopur, is doing a business of manufacturing fake coconut oil and storing it at his own house during his investigation. After Saha lodged a complaint, a team from Baguiati police station raided the house at AA/5A, Prafullakanan and found suspicious oil and bottles. When Sarkar was questioned about the products he could not provide satisfactory answers. He was detained and interrogated at the Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killedpolice station. Sources informed that during interrogation Sarkar admitted to have manufactured fake coconut oil by using a multinational company’s name. Police seized 100 bottles full of fake coconut oil, 300 blank bottles along with funnels and containers. He was arrested immediately on charges of offence of infringement of copyright or other rights conferred (63 copyright act), possession of plates for purpose of making infringing copies (65 copyright act) and cheating and dishonestly inducing delivery of property (420 IPC). Sarkar was produced before the Barasat Chief Judicial Magistrate’s (CJM) Court on Wednesday with an appeal for police custody. After hearing Public Prosecutor and defense counsel’s petition, magistrate rejected the bail application and granted 3-day police custody. The sleuths suspect there might be several other persons who had worked with Sarkar in this racket.last_img read more

Madhyamik 2019 kicks off amid allegations of paper leak

first_imgKolkata: The first day of Madhyamik examination was marked by allegations of question paper leak as the paper was found doing rounds on WhatsApp and other social networking sites, just half-an-hour after the commencement of the examination.State Education minister Partha Chatterjee has sought a report in this regard from the West Bengal Board of Secondary Education (WBBSE), which is responsible for conducting the examination across the state. WBBSE President Kalyanmoy Ganguly informed that a formal complaint has been lodged with the Cyber Crime Police Station of Bidhannagar City Police but ruled out chances of any re-examination. Also Read – Bose & Gandhi: More similar than apart, says Sugata BoseThe Board has decided to strengthen the directives regarding the use of mobile phone and maintain a stricter vigil on the use of phones in the examination hall. It has been learnt that the question paper had also reached the phone of Deputy Secretary (Examination) at around 1.30 pm. Meanwhile, state Food and Supplies minister Jyotipriya Mallick played his part to ensure that three Madhyamik examinees reach their examination venue on time. An auto-rickshaw with three students onboard had hit Mallick’s car near PNB Island in Salt Lake when he was travelling to his office. The minister came down from his car that was slightly damaged and himself took the three examinees, who luckily did not suffer injuries, to their venue at Laban Hrad Vidyapith. Also Read – Rs 13,000 crore investment to provide 2 lakh jobs: MamataHis security made arrangements for treatment of the guardian of one of the students who suffered injuries in the accident. “My priority was to ensure that they reach the examination hall in time, as Madhyamik is a very important examination for their careers,” Mallick said. It may be mentioned that WBBSE had announced a series of security measures to prevent leakage of question papers. Teachers assigned to the duty of invigilators were stipulated to hand over their mobile phones 30 minutes before the start of examination to the venue in-charge, who will be a government official. Students are already barred from carrying phones inside the examination hall. The Board president made it clear that only some officers involved in the examination are allowed to use cell phones in the exam centres, including the centre officer in-charge, centre secretary, venue supervisor, venue in-charge and additional venue supervisor. Sources in the Board indicated that the papers may have been circulated from districts like West Burdwan and Nadia. The Board has already started an internal probe into the matter.last_img read more

Bengals celebrated mountaineer set to conquer North Pole

first_imgKolkata: Satyarup Siddhanta, the Kolkata mountaineer who made Bengal proud in January by becoming the youngest man in the world to have scaled the seven highest peaks and volcanic summits across continents when he conquered Antarctica’s highest point Mount Sidley, is again embarking on an expedition to the North Pole. He has already left the city for the same.The mountaineer would ski for around ten days, 8-10 hours daily to reach the last point in North Pole, where the temperature varies between -25 to -35 degree Celsius. Also Read – Rs 13,000 crore investment to provide 2 lakh jobs: MamataIf Siddhanta successfully completes the arduous task in the next fifteen days, he will be the youngest person in the world to have completed the 7 highest summits, 7 volcanic summits, North Pole and South Pole and the first one from India to have done the same. “It is very challenging considering the inclement weather conditions, the presence of polar bears and the load of around 50 kg on the back, which needs to be carried during the expedition. But I am optimistic in placing our national flag on the North Pole,” Siddhanta said. Also Read – Lightning kills 8, injures 16 in stateA global company is sponsoring his expedition and the Indian flag was handed over to the mountaineer at a recent programme in the city by minister of state for Information & Cultural Affairs Indranil Sen. The North Pole has been adversely affected by global warming and the snow is melting there at a rapid pace. Experts have expressed their apprehension that the place may cease to exist after twenty years. The mountaineer, who originally hails from Haridevpur in South Kolkata, is a software engineer by profession. He holds an illustrious record of conquering several treacherous summits such as Mt Kilimanjaro in Africa, Mt Elbrus in Europe, Mt Denali in Alaska and Mt Monc Blanc in France. It was December 5, 2018, when Satyarup scaled Pico de Orizaba, which is the highest volcanic peak in North America. He was the first civilian Bengali to have scaled the seven summits in 2017. A Bengali mountaineer based in Delhi Satyabrata Dam had scaled the seven summits some years ago, but he was a non-civilian. He had successfully climbed Mt Everest in June 2016. Satyarup, an asthma patient as a child, could never even dream of scaling the mountains or other sports. But it was in 2008 when he went on a trekking trip with his friends that he decided to take up mountaineering. He went on scaling one peak after another and is now regarded as the country’s most successful mountaineer.last_img read more

Mamata reveals statistics showing rise in states financial performance

first_imgKolkata: Bengal’s financial performance has reached new heights because of a sharp rise in plan expenditure, capital expenditure, tax revenue collection, spending in social sector and several other parameters.This has happened at a time when the state government has to repay Rs 56,000 crore as loan to the Centre – a burden that the erstwhile Left Front government had left upon the Mamata Banerjee government. As per figures revealed by Chief Minister Mamata Banerjee after chairing an administrative review meeting at Nabanna Sabhaghar, the state plan expenditure has increased 6 times and the capital expenditure has gone up 11 times since 2010-11. Also Read – Rs 13,000 crore investment to provide 2 lakh jobs: Mamata”Our plan expenditure that was Rs 11,837 crore in 2010-11 has gone up to Rs 71,113 crore in 2018-19, while the capital expenditure has shot up to Rs 23,787 crore from Rs 2,225 crore. The social sector expenditure has increased four times from Rs 6,845 crore to Rs 31,060 crore, while that in agriculture and allied sectors has risen from Rs 3,029 crore to Rs 28,302 crore,” she said. The physical infrastructure sector expenditure has also increased five times since 2010-11 from Rs 1,758 crore to Rs 9,553 crore in 2018-19. Also Read – Lightning kills 8, injures 16 in state”In comparison to the 2017-18 financial year, the state plan expenditure has increased by 23 percent, the capital expenditure by 25 percent and physical infrastructure sector expenditure by 48 percent. Tax revenue has risen from Rs 60,818 crore in 2017-18 to Rs 65,341 crore in 2018-19, while GST collection has also gone up 23 percent in 2018-19 in comparison to the 2017-18 fiscal,” she added. Banerjee also announced the constitution of a Monitoring Cell on Programme Implementation in the CMRO to fasttrack redressal of complaints or grievances regarding government schemes. According to the Chief Minister, the state government is facing non-cooperation in proper implementation of its beneficial schemes like Khadya Sathi and Kanyashree from a section of officers, particularly those who have been working in the government level from the days of the erstwhile Left Front government. “When we assumed office (in 2011) we had not removed any government officer. Some of these officers are still showing non-cooperation in implementing government schemes. So, we are forming this monitoring and grievance cell so that I can personally monitor such cases,” she added. Colonel Diptanshu Chaudhary will be heading the cell, which will examine the authenticity of the complaint and will address the problem in seven days. If it cannot be solved in seven days, the CMRO will intervene directly and address the same. Banerjee announced a toll free number 18003458244, an SMS number 9073300524 and an email id: wbcmro@gmail.com, which people can use to register their complaints. She made it clear that she will not tolerate any money laundering through these beneficial schemes and will act tough. “We are strengthening our economic offence wing by including civil officials in the team for crackdown on such offences in a more efficient manner,” Banerjee said.last_img read more

Television actor harassed by appcab driver

first_imgKolkata: A television actor was allegedly harassed and manhandled by an app cab driver while she was going to a shoot on Wednesday morning.The police has initiated a case at Tiljala police station on the basis of a complaint lodged by the actor, who is a resident of Kasba and has arrested the driver Jamshed Hossain. According to the complaint of the actor, she had booked an Uber cab at 8.15 am and the vehicle No. WB-04E-9566 driven by Jamshed picked her up from near her residence. Also Read – Rs 13,000 crore investment to provide 2 lakh jobs: MamataWhile she was on her way to her destination the driver allegedly misbehaved, abused, outraged her modesty and pulled her out of the car after cancelling the trip near 42 bus stand on C.N.Roy Road under Tiljala police station. The incident happened in front of a restaurant at Uttar Panchana Gram near VIP Bazar area. The actress shared the details of the incident on her Facebook page. She wrote that the incident left her ‘dumbstruck’. “This had never happened to me before,” she wrote. She added that she will pursue legal actions in consultation with her family. “This is a clear violation of the safety standards set by our community guidelines and we have removed the driver’s access to the app. We stand ready to support law enforcement authorities in their investigations,” an Uber spokesperson said.last_img read more

VIDEO Boxers uncle faces assault charges after clocking opponent with postfight cheap

first_imgAs of this morning, Lawson has been formally charged by Prince George’s County, Maryland with 1st and 2nd degree assault charges, which carry maximum jail terms of 25 and 10 years respectively. He has yet to be arrested, according to reports.(Image via Yahoo!)Here’s the flurry of punches that earned Uzcategui the DQ: Advertisement During last night’s IBF super middleweight title fight between Jose Uzcategui and Andre Dirrell, a flurry of late punches after the expiration of the 8th round bell earned Uzcategui a disqualification. He was previously warned for landing punches after the bell.Despite the disqualification victory, Dirrell’s uncle, Leon Lawson, Jr. entered the ring, sought out Uzcategui, and clocked him with a cheap shot left hook that left Uzcategui dazed. Lawson was restrained, then vacated the arena.Andre Dirrell’s corner suckerpunches Uczategui after the disqualification #showtime #DirrellUzcategui pic.twitter.com/ExOwcBI9e7— TheUnorthodoxStance (@theUstance) May 21, 2017last_img read more

Colin Kirk Cousins to the Vikings is a nobrainer

first_imgKirk Cousins will reportedly sign with Minnesota on a fully guaranteed 3-year, $86 million contract and Colin thinks the signing is a no-brainer.Cousins could have signed a bigger contract with the Jets, but Colin sees his willingness to take less money and sign with a team that can legitimately win a Super Bowl, this year, speaks to his judgment. Minnesota’s explosive weapons and arguably the best defense in the NFL give him a supporting cast that no other team could come close to matching.With Cousins, Colin thinks the Vikings are set up to win the NFC North for the foreseeable future. They probably would be without him. Watch him explain why Cousins made the right call.“This division has officially changed. It will be the Minnesota Vikings division for the foreseeable future.”@ColinCowherd on why it was a no-brainer for Kirk Cousins to sign with the Vikings pic.twitter.com/D0nBq6Lf5w— Herd w/Colin Cowherd (@TheHerd) March 13, 2018 Advertisementlast_img read more

Paul Graham Steps Down as President of Y Combinator

first_img Opinions expressed by Entrepreneur contributors are their own. 2 min read Y Combinator, the prestigious seed accelerator that has spawned an impressive list of big-name tech companies (Dropbox, Reddit, Airbnb and Weebly, to name just a few) is getting a new president.Paul Graham, who co-founded the accelerator, announced in a blog post that he is passing the reins to Sam Altman, a current Y Combinator partner.In the post, Graham directly addressed his decision to step down. “YC needs to grow, and I’m not the best person to grow it,” he wrote. “Sam is what YC needs at this stage in its evolution.”Related: At Startup Accelerators, Expect the UnexpectedAltman was one of the founders in the first batch of startups the accelerator funded back in 2005. (He co-founded the location-based social networking mobile application Loopt). In his post, Graham claimed he has been trying to recruit Altman for the job since 2012.”He’s one of those rare people who manage to be both fearsomely effective and yet fundamentally benevolent — which, though few realize it, is an essential quality in early stage investing,” he wrote. “Sam is one of the smartest people I know, and understands startups better than perhaps anyone I know, including myself.  He’s the one I go to when I want a second opinion about a hard problem.”Graham said he will continue to work with the accelerator as an advisor, and expects Y Combinator to continue to grow: “There will be a lot more startups in 10 years than there are now, and if YC is going to fund them, we’ll have to grow proportionally bigger.”Related: Calling All Dreamers: Disney Is Launching a Startup Accelerator Program Free Webinar | Sept 5: Tips and Tools for Making Progress Toward Important Goals Attend this free webinar and learn how you can maximize efficiency while getting the most critical things done right. February 21, 2014 Register Now »last_img read more

Get Ready for the Next Digital Revolution as the Rest of the

first_img Excerpted from The New Digital Age by Eric Schmidt and Jared Cohen. Copyright © 2013 by Eric Schmidt. Excerpted by permission of Vintage, a division of Random House LLC. All rights reserved. No part of this excerpt may be reproduced or reprinted without permission in writing from the publisher.Being able to do more in the virtual world will make the mechanics of our physical world more efficient. As digital connectivity reaches the far corners of the globe, new users will employ it to improve a wide range of inefficient markets, systems and behaviors, in both the most and least advanced societies.Related: Breaking Into a Volatile (But Rewarding) Emerging Market  Impact on emerging markets. The resulting gains in efficiency and productivity will be profound, particularly in developing countries where technological isolation and bad policies have stymied growth and progress for years, and people will do more with less. The accessibility of affordable smart devices, including phones and tablets, will be transformative in these countries. Consider the impact of basic mobile phones for a group of Congolese fisherwomen today. Whereas they used to bring their daily catch to the market and watch it slowly spoil as the day progressed, now they keep it on the line, in the river, and wait for calls from customers. Once an order is placed, a fish is brought out of the water and prepared for the buyer. There is no need for an expensive refrigerator, no need for someone to guard it at night, no danger of spoiled fish losing their value (or poisoning customers), and there is no unnecessary overfishing. The size of these women’s market can even expand as other fishermen in surrounding areas coordinate with them over their own phones. As a substitute for a formal market economy (which would take years to develop), that’s not a bad workaround for these women or the community at large.Related: How Social Franchising Is Bringing Jobs to the Developing World The mobile revolution. Mobile phones are transforming how people in the developing world access and use information, and adoption rates are soaring. There are already more than 650 million mobile-phone users in Africa, and close to 3 billion across Asia. The majority of these people are using basic feature phones — voice calls and text messages only — because the cost of data service in their countries is often prohibitively expensive, so that even those who can buy web-enabled phones or smartphones cannot use them affordably. This will change, and when it does, the smartphone revolution will profoundly benefit these populations.Hundreds of millions of people today are living the lives of their grandparents, in countries where life expectancy is less than 60 years, or even 50 in some places, and there is no guarantee that their political and macroeconomic circumstances will improve dramatically anytime soon. What is new in their lives and their futures is connectivity. Critically, they have the chance to bypass earlier technologies, like dial-up modems, and go directly to high-speed wireless connections, which means the transformations that connectivity brings will occur even more quickly than they did in the developed world. The introduction of mobile phones is far more transformative than most people in modern countries realize.As people come online, they will quite suddenly have access to almost all the world’s information in one place in their own language. This will even be true for an illiterate Maasai cattle herder in the Serengeti, whose native tongue, Maa, is not written — he’ll be able to verbally inquire about the day’s market prices and crowdsource the whereabouts of any nearby predators, receiving a spoken answer from his device in reply. Mobile phones will allow formerly isolated people to connect with others very far away and very different from themselves. On the economic front, they’ll find ways to use the new tools at their disposal to enlarge their businesses, make them more efficient and maximize their profits, as the fisherwomen did much more locally with their basic phones.What connectivity also brings, beyond mobile phones, is the ability to collect and use data. Data itself is a tool, and in places where unreliable statistics about health, education, economics and the population’s needs have stalled growth and development, the chance to gather data effectively is a gamechanger. Everyone in society benefits from digital data, as governments can better measure the success of their programs, and media and other nongovernmental organizations can use data to support their work and check facts. For example, Amazon is able to take its data on merchants and, using algorithms, develop customized bank loans to offer them — in some cases when traditional banks have completely shut their doors. Larger markets and better metrics can help create healthier and more productive economies.Related: Is 3-D Printing the Key to Jump-Starting American Manufacturing?Advances in printing. And the developing world will not be left out of the advances in gadgetry and other high-tech machinery. Even if the prices for sophisticated smartphones and robots to perform household tasks like vacuuming remain high, illicit markets like China’s expansive “shanzhai” network for knockoff consumer electronics will produce and distribute imitations that bridge the gap. And technologies that emerged in first-world contexts will find renewed purpose in developing countries. In “additive manufacturing,” or 3-D printing, machines can actually “print” physical objects by taking three-dimensional data about an object and tracing the contours of its shape, ultrathin layer by ultrathin layer, with liquid plastic or other material, until the whole object materializes. Such printers have produced a huge range of objects, including customized mobile phones, machine parts and a full-sized replica motorcycle. These machines will definitely have an impact on the developing world. Communal 3-D printers in poor countries would allow people to make whatever tool or item they require from open-source templates — digital information that is freely available in its edited source — rather than waiting on laborious or iffy delivery routes for higher-priced premade goods. Related: Meet the Man Leading the Connected-Home RevolutionChanges in affluent markets. In wealthier countries 3-D printing will be the perfect partner for advanced manufacturing. New materials and products will all be built uniquely to a specification from the Internet and on demand by a machine run by a sophisticated, trained operator. This will not replace the acres of high-volume, lowest-cost manufacturing present in many industries, but it will bring an unprecedented variety to the products used in the developed world.As for life’s small daily tasks, information systems will streamline many of them for people living in those countries, such as integrated clothing machines (washing, drying, folding, pressing and sorting) that keep an inventory of clean clothes and algorithmically suggest outfits based on the user’s daily schedule. Haircuts will finally be automated and machine-precise. And cellphones, tablets and laptops will have wireless recharging capabilities, rendering the need to fiddle with charging cables an obsolete nuisance. Centralizing the many moving parts of one’s life into an easy-to-use, almost intuitive system of information management and decision making will give our interactions with technology an effortless feel. As long as safeguards are in place to protect privacy and prevent data loss, these systems will free us of many small burdens — including errands, to-do lists and assorted “monitoring” tasks — that today add stress and chip away at our mental focus throughout the day. Our own neurological limits, which lead us to forgetfulness and oversights, will be supplemented by information systems designed to support our needs. Two such examples are memory prosthetics — calendar reminders and to-do lists — and social prosthetics, which instantly connect you with your friend who has relevant expertise in whatever task you are facing.By relying on these integrated systems, which will encompass both the professional and the personal sides of our lives, we’ll be able to use our time more effectively each day — whether that means having the time to have a “deep think,” spending more time preparing for an important presentation or guaranteeing that a parent can attend his or her child’s soccer game without distraction. Suggestion engines that offer alternative terms to help a user find what she is looking for will be a particularly useful aid in efficiency by consistently stimulating our thinking processes, ultimately enhancing our creativity, not pre-empting it. Of course, the world will be filled with gadgets, holograms that allow a virtual version of you to be somewhere else, and endless amounts of content, so there will be plenty of ways to procrastinate, too — but the point is that when you choose to be productive, you can do so with greater capacity.Related: A Look at Tomorrow’s Tomorrow: We Will Live Inside ComputersComputers getting smarter. Other advances in the pipeline in areas like robotics, artificial intelligence and voice recognition will introduce efficiency into our lives by providing more seamless forms of engagement with the technology in our daily routines. Fully automated human-like robots with superb AI abilities will probably be out of most people’s price range for some time, but the average American consumer will find it affordable to own a handful of different multipurpose robots fairly soon. The technology in iRobot’s Roomba vacuum cleaner, the progenitor of this field of consumer “home” robots (first introduced in 2002), will only become more sophisticated and multipurpose in time. Future varieties of home robots should be able to handle other household duties, electrical work and even plumbing issues with relative ease.We also can’t discount the impact that superior voice-recognition software will have on our daily lives. Beyond searching for information online and issuing commands to your robots (both of which are possible today), better voice recognition will mean instant transcription of anything you produce: emails, notes, speeches, term papers. Most people speak much faster than they type, so this technology will surely save many of us time in our daily affairs — not to mention helping us avoid cases of carpal tunnel syndrome. A shift toward voice initiated writing may well change our world of written material. Will we learn to speak in paragraphs, or will our writing begin to mirror speech patterns?Related: WATCH: Microsoft Tests a Keyboard That Understands Your GesturesMachines that read gestures, even thoughts. Everyday use of gesture-recognition technology is also closer than we think. Microsoft’s Kinect, a hands-free sensor device for the Xbox 360 video-game console that captures and integrates a player’s motion, set a world record in 2011 as the fastest-selling consumer electronics device in history, with more than 8 million devices sold in the first 60 days on the market. Gestural interfaces will soon move beyond gaming and entertainment into more functional areas; the futuristic information screens displayed so prominently in the film Minority Report — in which Tom Cruise used gesture technology and holographic images to solve crimes on a computer — are just the beginning. In fact, we’ve already moved beyond that — the really interesting work today is building “social robots” that can recognize human gestures and respond to them in kind, such as a toy dog that sits when a child makes a command gesture.And, looking further down the line, we might not need to move physically to manipulate those robots. There have been a series of exciting breakthroughs in thought-controlled motion technology — directing motion by thinking alone — in the past few years. In 2012, a team at a robotics laboratory in Japan demonstrated successfully that a person lying in an fMRI machine (which takes continuous scans of the brain to measure changes in blood flow) could control a robot hundreds of miles away just by imagining moving different parts of his body. The subject could see from the robot’s perspective, thanks to a camera on its head, and when he thought about moving his arm or his legs, the robot would move correspondingly almost instantaneously. The possibilities of thought-controlled motion, not only for “surrogates” like separate robots but also for prosthetic limbs, are particularly exciting in what they portend for mobility-challenged or “locked in” individuals — spinal-cord-injury patients, amputees and others who cannot communicate or move in their current physical state.Related: ‘Future of Now’: The Convergence of Social Media, Crowdfunding and Tech Free Workshop | August 28: Get Better Engagement and Build Trust With Customers Now This hands-on workshop will give you the tools to authentically connect with an increasingly skeptical online audience. May 27, 2014 11 min read Enroll Now for Free Opinions expressed by Entrepreneur contributors are their own.last_img read more