They opted for biorobots made of sperm cells and turned to bull sperm cells, Schmidt said, according to New Scientist, that reasons why sperm cells were an attractive choice were that they were harmless to the body, they could swim through viscous liquids, and they did not need any external power source. The researchers produced microtubes and worked with thawed-out bull sperm cells, remaining viable for several hours. According to New Scientist, the microtubes are made from iron and titanium nanoparticles. Scientists have shown how controlled sperm cells inside tubes can be driven to target destinations using magnetic control. The significance of their investigation lies partly in what may be in store for in vitro fertilization. “Eventually,” said a report in New Scientist, “these biobots could be used to shepherd individual sperm to eggs or to deliver targeted doses of drugs.” The researchers, from the Institute for Integrative Nanosciences (IIN) in Dresden, Germany, demonstrated how remote-controlled “sperm-bots” can be used to fertilize eggs. A paper on their work was published last month in Advanced Materials and the topic continues to draw interest in this month’s technology and science news sites. The December paper, “Development of a Sperm-Flagella Driven Micro-Bio-Robot,” is by Veronika Magdanz, Samuel Sanchez, and Oliver G. Schmidt. They developed “a new biohybrid micro-robot” by capturing bovine sperm cells inside tubes that used the motile cells as the driving force. An external magnetic field controlled the robots. More information: Press release in GermanPaper: Development of a Sperm-Flagella Driven Micro-Bio-Robot, Advanced Materials, DOI: 10.1002/adma.201302544AbstractA new biohybrid micro-robot is developed by capturing bovine sperm cells inside magnetic microtubes that use the motile cells as driving force. These micro-bio-robots can be remotely controlled by an external magnetic field. The performance of micro-robots is described in dependence on tube radius, cell penetration, and temperature. The combination of a biological power source and a microdevice is a compelling approach to the development of new microrobotic devices with fascinating future applications. Journal information: Advanced Materials Researchers discover sperm move along a ‘twisting ribbon’ Credit: Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden Schmidt, the Institute’s director, and his IIN colleagues combined the cells with magnetic metal tubes. Basically, the investigation involved live flagella from bull sperm to maneuver nanotubes in a desired direction using magnets. Changes in temperature were able to control their speeds.According to a report on their work in Gizmag, the team intends to try assisted fertilization with animals before starting experiments with human sperm. One additional possibility is that their research might impact future investigations in targeted drug delivery, where drugs may be ferried along within the body. Another interesting feature about this research is how it involves use of “biobots” as opposed to artificial engines. As Gizmag noted, a concern in research is that a nanobot intended to move through bodily fluids should not be toxic to the human body and should not cause harm to cells, affecting their functioning. The IIN scientists discussed safe “nano-engine” alternatives, or suitable “biorobots.” Explore further PausePlay% buffered00:0000:00UnmuteMuteDisable captionsEnable captionsSettingsCaptionsDisabledQuality0SpeedNormalCaptionsGo back to previous menuQualityGo back to previous menuSpeedGo back to previous menu0.5×0.75×Normal1.25×1.5×1.75×2×Exit fullscreenEnter fullscreen Play Credit: Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden Citation: Sperm-bots are made to move in desired direction (w/ Video) (2014, January 17) retrieved 18 August 2019 from https://phys.org/news/2014-01-sperm-bots-desired-video.html © 2014 Phys.org 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.
© 2015 Phys.org Play In vivo label-free SRS imaging cell division dynamics in cancer. Synchronized HeLa cells were injected into a xenograft mouse model with a skinfold chamber. Imaging was taken 26 h after the injection. Cells in mitotic phase that landed in the subskin tissue microenvironment (protein contrast in blue) were targeted and imaged. Chromosomal dynamics were captured based on DNA contrast (magenta). The video was composed of 12 frames acquired with a 3-min interval. Credit: PNAS, Fa-Ke Lu, doi: 10.1073/pnas.1515121112 To prove that their technique would work, they analyzed samples of synthetic DNA, BSA (protein) and oleic acid (lipid), individually and collectively in a cellular pellet. They measured the three Raman vibrational shifts and calculated the distribution of DNA, protein and lipid using linear decomposition. This study confirmed not only that their technique worked, but that it is also highly accurate.The next step was to test their technique in biological samples. Lu, et al. used their SRS technique to look at cell division in HeLa cells. They first looked at cells in the first stage of mitosis, the prophase, and were able to reconstruct a 3D distribution of DNA, lipids, and protein, showing a high concentration of DNA in the nucleus, lipids predominantly in the cytoplasm, and proteins scattered throughout the entire cell. They then imaged cells in at the interphase stage of mitosis and were able to discern the chromatin structures in the nuclei. Time-lapse SRS allowed Lu, et al. to observe the transition from metaphase to anaphase. Explore further PausePlay% buffered00:0000:00UnmuteMuteDisable captionsEnable captionsSettingsCaptionsDisabledQuality0SpeedNormalCaptionsGo back to previous menuQualityGo back to previous menuSpeedGo back to previous menu0.5×0.75×Normal1.25×1.5×1.75×2×Exit fullscreenEnter fullscreen To really understand what is happening during cellular processes, including cellular malfunctioning as in cancer, there is a need to peer inside the cell without disrupting any of the cellular processes. Typically if scientists want to look at large spools of DNA, known as chromosomes, they would need to fluorescently label the DNA. This approach is invasive and may alter the native environment of the cell.Furthermore, in medicine, histological diagnoses are typically done by examining stained tissue biopsies. In this study, Fa-Ke Lu, Srinjan Basu, Vivien Igras, Mai P. Hoang, Minbiao Ji, Dan Fu, Gary R. Holtom, Victor A. Neel, Christian W. Freudiger, David E. Fisher, and X. Sunney Xie present a label-free technique that forgoes staining and could potentially offer a non-invasive way to diagnose skin cancer.Stimulated Raman scattering (SRS) microscopy is a type of imaging technique that looks at the vibrational frequencies of chemical bonds. Different types of bonds will have different frequencies based on the surrounding molecular environment. For example, a C-H bond on a DNA molecule (2,956 cm-1) is going to have a slightly different vibrational frequency compared to a C-H bond on proteins (2,931 cm-1) or lipids (2,854 cm-1). Unlike traditional Raman spectroscopy, SRS is able to obtain data on a sample rapidly, allowing for real-time, in vivo studies. By looking at these C-H stretching vibration regions and conducting a linear decomposition of the images, Lu, et al. were able to map the content and distribution of DNA, proteins, and lipids within the cell, allowing them to observe the cell division process in a label-free manner. Journal information: Proceedings of the National Academy of Sciences Citation: Label-free technique that images DNA in vivo (2015, September 9) retrieved 18 August 2019 from https://phys.org/news/2015-09-label-free-technique-images-dna-vivo.html Imaging glucose uptake activity inside single cells (Phys.org)—A group of researchers from Harvard University report being able to observe DNA dynamics during cell division in vivo using time-lapse stimulated Raman scattering microscopy and without using fluorescent labels. Their work appears in the Proceedings of the National Academy of Sciences. More information: “Label-free DNA imaging in vivo with stimulated Raman scattering microscopy” PNAS, Fa-Ke Lu, DOI: 10.1073/pnas.1515121112AbstractLabel-free DNA imaging is highly desirable in biology and medicine to perform live imaging without affecting cell function and to obtain instant histological tissue examination during surgical procedures. Here we show a label-free DNA imaging method with stimulated Raman scattering (SRS) microscopy for visualization of the cell nuclei in live animals and intact fresh human tissues with subcellular resolution. Relying on the distinct Raman spectral features of the carbon-hydrogen bonds in DNA, the distribution of DNA is retrieved from the strong background of proteins and lipids by linear decomposition of SRS images at three optimally selected Raman shifts. Based on changes on DNA condensation in the nucleus, we were able to capture chromosome dynamics during cell division both in vitro and in vivo. We tracked mouse skin cell proliferation, induced by drug treatment, through in vivo counting of the mitotic rate. Furthermore, we demonstrated a label-free histology method for human skin cancer diagnosis that provides comparable results to other conventional tissue staining methods such as H&E. Our approach exhibits higher sensitivity than SRS imaging of DNA in the fingerprint spectral region. Compared with spontaneous Raman imaging of DNA, our approach is three orders of magnitude faster, allowing both chromatin dynamic studies and label-free optical histology in real time. In vivo studies were done on the skin of mice treated with TPA, a chemical that promotes cell division. Lu, et al. were able to discern each stage of the cell cycle as described before. Additionally, they were able to look at chromosomal migration in cancer cells from immune-deficient mice treated with human cancer cells. These results then lead Lu, et al. to use time-lapse SRS to study cell cycle kinetics. By understanding the rate at which cells divide, researchers can discern important factors, such as the aggressiveness of a cancer. They found that in TPA-treated mice, cell mitotic activity peaked at 18 hours and by 24 hours had decreased. This was the first time that a mitotic rate was reported in vivo in a quantitative manner.The last step was to test their label-free SRS technique with human cancer cells to see if it is a viable technique for histologic diagnosis. To ensure the accuracy of their technique, they first imaged a tissue sample using traditional staining and compared it to their SRS technique. They then imaged fresh human skin cancer tissue from three surgical cases of squamous cell carcinoma, the second most common form of skin cancer. They found an increased number of mitotic features, which translates into increased cell division and proliferation, hallmarks of cancer cells. Their results demonstrate that their label-free SRS imaging method is comparable to traditional staining methods for histological diagnosis. Additionally, because SRS allows for the observation of nucleic acids, specifically, researchers can do quantitative studies of mitotic kinetics within a tumor cell.According to co-author Professor Xie, “SRS imaging could be particularly relevant for in vivo counting of the mitotic rate used in human skin cancer diagnosis. We expect that SRS may not only speed up surgical procedures by on-site label-free imaging of tumor tissue with margins, but it could also have the potential for in vivo noninvasive detection and progress evaluation of skin lesions in real time.”This technique holds much promise for being used both as a non-invasive method for skin cancer diagnosis, and as a quick evaluation of the aggressiveness of cancer cells after excision.Co-author Dr. David Fisher adds that “this remarkable methodology provides high resolution images of cells and their nuclei within their natural biological context, providing a novel means of tracking their behavior over time. SRS is a particularly valuable tool for the evaluation of cancer cells.” In vitro label-free SRS imaging of cell division dynamics of a cultured HeLa cell. Credit: PNAS, Fa-Ke Lu, doi: 10.1073/pnas.1515121112 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 Prior research has shown that mammals and birds and one species of lizard respond to stress by experiencing an increase in body temperature on the order of 1 or 2 C°—a reaction that some have suggested indicates that the creature is a sentient being—one that is able to perceive or feels things, whether emotional or physically. The term sentient has also been used a lot in science fiction to describe extraterrestrial life that is intelligent enough to offer some form of interaction with humans, as is the case with most mammals and birds here on Earth. Unfortunately, to date, no such increase in body temperature related to stress has ever been reported in fish, which has left many labeling them as non-sentient and unable to feel either stress or pain, such as from being hooked on the end of a line. In this new effort, the researchers sought to find out if this is true.The experiments by the researchers consisted of placing 72 zebra fish in a net in water that was 1 C° colder than was normal for them. They also had a control group that was left alone with no changes to their environment. All of the fish were then transferred to a tank that had sections heated to different levels, which the fish could access freely if they wished. The team watched to see which section the fish would swim to, and noted that those fish that had been stressed spent more time in the sections that were slightly warmer than normal, than did the control fish. Doing so caused the body temperature of the fish to rise from 2 to 4 C°, which the team claims showed the fish experienced elevated body temperatures in response to stress, demonstrating emotional fever, and therefore they should qualify as sentient beings. Amphibious fish found to use evaporative cooling to overcome hot water (Phys.org)—A small team of researchers from the U.K. and Spain has found via lab study that at least one type of fish is capable of experiencing ’emotional fever,’ which suggests it may qualify as a sentient being. In their paper published in the journal Proceedings of the Royal Society B, the team describes their experiments with stressing zebra fish, how the fish reacted, and why they believe it should now be added to the list of organisms labeled as sentient beings. 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. Journal information: Proceedings of the Royal Society B Citation: Study suggests fish can experience ’emotional fever’ (2015, November 25) retrieved 18 August 2019 from https://phys.org/news/2015-11-fish-emotional-fever.html More information: Sonia Rey et al. Fish can show emotional fever: stress-induced hyperthermia in zebrafish, Proceedings of the Royal Society B: Biological Sciences (2015). DOI: 10.1098/rspb.2015.2266 AbstractWhether fishes are sentient beings remains an unresolved and controversial question. Among characteristics thought to reflect a low level of sentience in fishes is an inability to show stress-induced hyperthermia (SIH), a transient rise in body temperature shown in response to a variety of stressors. This is a real fever response, so is often referred to as ’emotional fever’. It has been suggested that the capacity for emotional fever evolved only in amniotes (mammals, birds and reptiles), in association with the evolution of consciousness in these groups. According to this view, lack of emotional fever in fishes reflects a lack of consciousness. We report here on a study in which six zebrafish groups with access to a temperature gradient were either left as undisturbed controls or subjected to a short period of confinement. The results were striking: compared to controls, stressed zebrafish spent significantly more time at higher temperatures, achieving an estimated rise in body temperature of about 2–4°C. Thus, zebrafish clearly have the capacity to show emotional fever. While the link between emotion and consciousness is still debated, this finding removes a key argument for lack of consciousness in fishes. © 2015 Phys.org
Citation: Astronomers detect synchronous X-ray and radio mode switching of the pulsar PSR B0823+26 (2018, August 20) retrieved 18 August 2019 from https://phys.org/news/2018-08-astronomers-synchronous-x-ray-radio-mode.html Explore further 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. Mode changing and giant pulses found in a millisecond pulsar © 2018 Phys.org More information: Discovery of synchronous X-ray and radio moding of PSR B0823+26, arxiv.org/abs/1808.01901AbstractSimultaneous observations of PSR B0823+26 with ESA’s XMM-Newton, the Giant Metrewave Radio Telescope and international stations of the Low Frequency Array revealed synchronous X-ray/radio switching between a radio-bright (B) mode and a radio-quiet (Q) mode. During the B mode we detected PSR B0823+26 in 0.2−2 keV X-rays and discovered pulsed emission with a broad sinusoidal pulse, lagging the radio main pulse by 0.208 ± 0.012 in phase, with high pulsed fraction of 70−80%. During the Q mode PSR B0823+26 was not detected in X-rays (2 σ upper limit a factor ~9 below the B-mode flux). The total X-ray spectrum, pulse profile and pulsed fraction can globally be reproduced with a magnetized partially ionized hydrogen atmosphere model with three emission components: a primary small hot spot (T∼3.6×106 K, R∼17 m), a larger cooler concentric ring (T∼1.1×106 K, R∼280 m) and an antipodal hot spot (T∼1.1×106 K, R∼100 m), for the angle between the rotation axis and line of sight direction ∼66∘. The latter is in conflict with the radio derived value of (84±0.7)∘. The average X-ray flux within hours-long B-mode intervals varied by a factor ±20%, possibly correlated with variations in the frequency and lengths of short radio nulls or short durations of weak emission. The correlated X-ray/radio moding of PSR B0823+26 is compared with the anti-correlated moding of PSR B0943+10, and the lack of X-ray moding of PSR B1822-09. We speculate that the X-ray/radio switches of PSR B0823+26 are due to variations in the rate of accretion of material from the interstellar medium through which it is passing. An international team of astronomers has detected synchronous X-ray and radio mode switching between radio-bright and a radio-quiet modes in the pulsar PSR B0823+26. The discovery marks the second time that such synchronous mode switching has been observed in a pulsar. The finding is detailed in a paper published August 6 on arXiv.org. GMRT observation at 325 MHz of PSR B0823+26 on 2017 April 20, showing as a typical example PSR B0823+26 in B mode during 2500 single-pulse sequences, or ∼ 22 minutes of the total duration of ∼ 7.5 hours in B mode. Observation time versus pulsar phase centred on the main pulse with underneath the integrated profile of the main pulse, and to the left the average energy per pulse in arbitrary units. Credit: Hermsen et al., 2018. To date, synchronous X-ray and radio mode switching has been identified only in one old and nearly aligned pulsar known as PSR B0943+10. Therefore, astronomers are interested in finding such behavior in other objects in order to improve knowledge about the poorly understood mechanisms behind this activity.The new study, conducted by a group of scientists led by Willem Hermsen of the University of Amsterdam in the Netherlands, presents another example of a pulsar experiencing synchronous X-ray and radio mode switching. The discovery was made as a result of observations with ESA’s XMM-Newton spacecraft, the Giant Metrewave Radio Telescope (GMRT) in India and international stations of the Low-Frequency Array (LOFAR).”We observed the radio-mode switching PSR B0823+26 for about 39 hours simultaneously in X-rays and the radio band and report the discovery of synchronous correlated X-ray and radio mode switching,” the researchers wrote in the paper.PSR B0823+26, located some 1,000 light years away from the Earth, is one of the brightest radio pulsars in the Northern sky. It has a period about 530 milliseconds, a spin-down age of approximately 4.9 million years and an inferred magnetic field of around 980 billion G.The observations performed by Hermsen’s team allowed the researchers to find that PSR B0823+26 switches between a radio-bright (B) mode and a radio-quiet (Q) mode. In particular, the pulsar was found to be in the radio B mode during five out of six XMM-Newton observations and in the Q mode during only one observation. Moreover, the pulsar spent only approximately 15 percent of the time in Q mode over entire radio observational campaign with GMRT and LOFAR.Notably, during the Q mode, the researchers did not detect PSR B0823+26 in X-rays with an upper limit almost an order of magnitude lower than the reported flux in the B mode. They emphasized that this is a surprising result, as PSR B0943+10 is known to showcase anti-correlated mode switches.The authors of the paper also try to explain the nature of the observed synchronous X-ray and radio mode switching in PSR B0823+26. They assume that at the moment, the most plausible hypothesis is that this behavior is due to variations in the rate of accretion of material from the interstellar medium through which it is passing.”We are speculating that in PSR B0823+26, we are not seeing ‘true’ mode-changing but the sudden appearance of strong bursts whose intensities follow a self-similar (i.e. fractal) distribution over a wide range of timescales. Such a system could be identified as exhibiting self-organized criticality. In this context, we speculate that PSR B0823+26 is accreting material from a debris disk or the interstellar medium through which it is passing, to explain some of its X-ray characteristics,” the astronomers concluded.
A team of researchers from the University of California and Fudan University has developed a way to use a single molecule magnet as a scanning magnetometer. In their paper published in the journal Science, the group outlines their research which involved demonstrating their sensor scanning the spin and magnetic properties of a molecule embedded in another material. STM imaging from weak to strong spin interactions between two magnetic molecules. Credit: Wilson Ho More information: Gregory Czap et al. Probing and imaging spin interactions with a magnetic single-molecule sensor, Science (2019). DOI: 10.1126/science.aaw7505 Citation: Single molecule magnet used as a scanning magnetometer (2019, May 17) retrieved 18 August 2019 from https://phys.org/news/2019-05-molecule-magnet-scanning-magnetometer.html Research team saves information on a single molecule Explore further Journal information: Science © 2019 Science X Network 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. As scientists continue their quest to squeeze ever more data onto increasingly smaller storage devices, they are exploring the possibility of using the magnetic state of a single molecule or even an atom—likely the smallest possible memory element type. In this new effort, the researchers have demonstrated that it is possible to use a single molecule affixed to a sensor to read the properties of a single molecule in another material.To create their sensor and storage medium, the researchers first absorbed magnetic molecules of Ni(cyclopentadienyl)2 onto a plate coated with silver. Then, they pulled a nickelocene molecule from the silver surface and applied it to the tip of a scanning tunneling microscope sensor. Next, they heated an adsorbate-covered surface to 600 millikelvin and then moved the sensor tipped with the single molecule close to the surface and read the signals received by the probe as the two molecules interacted.The researchers report that they were able to read the spin and magnetic interactions as they occurred with the two molecules. They report also that using the probe they were also able to create images of the shape of the interactions in several spatial directions. They noted that the signals they received were strongest when the probe was placed directly over the center of the molecule under study and that it decreased asymmetrically as the angle was increased and exponentially as the tip was moved farther away. The team also linked two of the nickelocene molecules together and report that they behaved according to density functional theory.The researchers conclude by suggesting that it is possible to measure and monitor spin interactions at the angstrom level, which is likely to lead to the development of new kinds of magnetic sensors.
To commemorate the 65th Anniversary of the National Day of the People’s Republic of China, Embassy of China in association with India China Economic and Cultural Council organised a cultural evening – Chinese KungFu Show, to strengthen the bilateral cultural cooperation between India and China, on 24 September at Siri Fort Auditorium. The show saw the performances by the Shaolin Kung Fu Performance Troupe. The troupe belongs to the Emperor of Tang Dynasty from 621 B.C. and is one of the ancient troupes from China, straight from the Shaolin Temple. Also Read – ‘Playing Jojo was emotionally exhausting’Performing for the first time in India, the Shaolin Kung Fu troupe displayed an array of excellent skills such as the Zen Kungfu, eight-piece brocade, long-style boxing, Kungfu by two fingers, imitative-style boxing among many others. Shaolin Kung Fu Performance troupe, being known for its historic background and art training, showcased their various breath taking and astonishing skills at the evening enthralling the crowd with their surprise tricks. Also Read – Leslie doing new comedy special with NetflixSpeaking on the occasion, Zhang Zhihong, Cultural Counsellor, Embassy of China in India expressed warm greetings on the occasion of China National Day and wished for the complete success of the program and contributes to the people and culture exchange between the two countries. Mohammed Saqib, Secretary General, India China Economic and Cultural Council thanked all for gathering and ensuring a trademark show ever in the history of cultural evenings. Also gracing the occasion with theirbest wishes were Parvez Dewan, Secretary, Ministry of Tourism, Government of India and Le Yucheng, Chinese Ambassador to India.
Similar plants have also come up at Delhi Metro Rail Corporation’s residential colonies at Shastri Park, Sarita Vihar and Yamuna Bank where about 260 kilolitres of water is being reused, primarily in watering gardens and toilets.The five depots where the facilities have been installed are – Sarita Vihar, Shastri Park, Yamuna Bank, Sultanpur and Khyber Pass.The plants at Najafgarh and Dwarka are under renovation.Officials said plans are afoot to have similar facilities in the depots which are going to come up as part Phase-III of expansion and “feasibility studies” are being conducted to explore the possibility of installing similar plants at other locations.As part of its water conservation efforts, DMRC also has 470 rain water harvesting pits at 99 locations with a total capacity of 7,844 cubic metres, a statement said. It is also developing an “Environmental Management System” to promote awareness on the need to conserve water among employees and stakeholders.
Kolkata: The West Bengal Board of Secondary Education (WBBSE) will announce the results of Madhyamik examination 2018 on Wednesday, June 6. The results will be declared at a Press conference at the Board office in Salt Lake at 9 am. A senior official of WBBSE informed that the results can be accessed from the official website of WBBSE www.webresults.in/wbbse.org, from 10 am. Apart from this, candidates can also type WB 10 followed by their roll number and send it to 54242 or 5888 to receive the marks. It may be mentioned that a total of 11,21,921 candidates had appeared for the examination, which is 31,075 higher than last year. Among the examinees, 6,21,366 were girls, while 4,81,555 were boys. There were 2,811 centres in which the examination was held from March 12 to 21.
Kolkata: State agriculture department has decided to impart training to the farmers of Malda district, where the department is planning to produce Tulaipanji and other aromatic rice in large scale.A team of research wing at Uttar Banga Krishi Vishwavidyalaya will soon visit Malda district not only to carry out a detailed survey but also to encourage the farmers to cultivate Tulaipanji and other scented rice.The step is a part of the overall initiative of the state Agriculture department to increase the production of aromatic rice. Also Read – Heavy rain hits traffic, flightsThe research wing of Uttar Banga Krishi Vishwavidyalaya will identify the places where these rice could be grown on a large scale. They will encourage the farmers into new ventures and training would be given to them.The department will provide seeds to the farmers in the district at a cheaper rate so that more number of farmers show their interest.The state government will extend all possible benefits to the farmers to make the attempt a success, sources in the department said. Also Read – Speeding Jaguar crashes into Merc, 2 B’deshi bystanders killedAgriculture department will carry out a detailed study, examine the nature of the land where Tulaipamji and other aromatic rice could be grown in North Bengal.State agriculture minister recently held a high-level meeting with the researchers of Uttar BangaKrishi Vishwavidyalaya and other senior officials of the department, chalking out an elaborate plan on how to increase the production of aromatic rice.It may be mentioned here that Chief Minister Mamata Banerjee during her recent visit to the North Bengal, asked the senior government officials to take necessary steps so that Tulaipanji, Gobindobhog and other aromatic rice can be produced on a large scale. The main purpose of the move is to ensure that the people get these rice at a lesser price.Proded by the Chief Minister, the agriculture department is also leaving no stone unturned to make it possible. It may be mentioned here that state Agriculture department has already been taking help from the research fellows of Bidhan Chandra Krishi Viswavidyalaya and Uttar Banga Krishi Vishwavidyalaya who will provide assistance to the department in this regard. The main purpose is to increase the production of fragrant rice in the state.Asish Banerjee, state Agriculture minister said his department has set a target to increase the production of various aromatic rice including Tulaipanji and Gobindabhog in various districts.A research wing of Uttar Banga Krishi Vishwavidyalaya has chosen Malda district where Tulaipanji could be grown on a large scale. A team will soon visit the district to identify the areas.
In order to revitalise these forgotten monuments, a group of passionate architectures and musicians have come together with a unique initiative to explain to the general public, the extraordinary architecture of these structures with the help of dance and music.During the TEDx talks at Indian International Center, the group showcased the presentation on their pilot site
Frustration arising out of family stress can make managers verbally abusive towards subordinates at workplaces, says a study.“We found that supervisers who experienced more family-work conflict were more likely to verbally abuse their employees,” said one of the researchers, Stephen Courtright, professor of management at Texas A&M University in the US.“This happened because supervisers who experienced high levels of family-work conflict also experienced higher levels of ‘ego depletion’, which then led to more frequent displays of verbal abuse,” Courtright said. Also Read – ‘Playing Jojo was emotionally exhausting’Ego depletion is the inability to control one’s impulses due to mental exhaustion, Courtright said. “And family-work conflict occurs when family demands or problems affect one’s ability to work,” he said.To examine the connection between problems at home and abusive supervision, the researchers first sent surveys over a four-month period to more than 150 mid-level managers and all of the employees who report directly to them at a Fortune 500 company located in the US and Canada. Also Read – Leslie doing new comedy special with NetflixThey then expanded the study to nearly 100 mid and senior-level managers in organisations spanning 20 different industries across the US.The researchers found that supervisers take out their frustration with home problems on their employees.The investigation also revealed that female supervisers were more likely to verbally abuse employees.“Women have traditionally been expected by society to divert more attention away from work and towards home when family demands and stress arise,” Courtright said.“As a result, women end up experiencing higher levels of ego depletion, which in turn, means displaying more abusive supervision,” Courtright said.The study was published in the Academy of Management Journal.
Kolkata: The family members of a patient who died of alleged medical negligence at a private nursing home in Mecheda on Monday morning went on a rampage, ransacking a portion of thenursing home. The doctors and nursing staff were allegedly beaten up by the family members of the victim. A huge contingent of police rushed to the spot to bring the situation under control. Meanwhile, the nursing home authorities have lodged a complaint at the local police station in this regard and a probe has been initiated. The incident triggered tension among other patients and staff of the nursing home. It was learnt that one Seikh Tahajul Ali, a resident of Barisa village of Kolaghat, was taken to the nursing home on Monday morning after he complained of chest pain and severe respiratory distress. The patient died in the nursing home later on the day. The family members of the victim alleged that a nursing staff administered an wrong injection on the victim following which their patient’s condition deteriorated. As the news of the patient’s death reached his family members, they started congregating near the nursing home. A heated altercation broke out between the victim’s relatives and the staff of the hospital. An irate mob pelted stones at the nursing home and ransacked a portion of it. The victim’s elder brother, Mafijul Ali, alleged that the patient was admitted to the hospital with respiratory distress but the doctors administered a wrong injection assuming that he was bitten by a snake. The family members of the deceased have demanded a high-level enquiry into the incident. The nursing home authorities did not allow the patient’s family members to enter the nursing home, alleged Ali. A senior official of the nursing home denied the allegation of negligence and said the patient was brought to the nursing home in a very critical condition. The doctors tried their best but the patient could not be saved. Police have started a probe in this regard.
Kolkata: Howrah City Police has organised an awareness drive to ensure a “Clean and Green City”. A rally was held in the area near Howrah Hospital, in which police involved local people.It may be mentioned that Chief Minister Mamata Banerjee had stressed upon the need of taking steps to ensure a clean and green city, while addressing a recent programme. She had mentioned the incident in which a person had spat inside the newly inaugurated skywalk at Dakshineswar. Also Read – Rain batters Kolkata, cripples normal lifeBanerjee had also held a high level meeting at Nabanna and set up a committee headed by Chief Secretary Malay De, to chalk out a plan of action to ensure a “Clean and Green City”. Policemen from Howrah Police Commissionerate, along with some local residents, urged people not to throw garbage on roads. It may be mentioned that there are several tea shops and eateries in the area near Howrah Hospital. The police went to each and every spot where garbage had been dumped. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killedAccording to a police officer, they found that garbage was dumped mainly on roads near tea shops and eateries. Owners of these shops were made to clean the same immediately. At the same time, they were also asked to join the awareness rally. Van rickshaw-pullers, toto and auto-rickshaw drivers also participated in the rally. They were carrying placards with “Clean and Green City” written on them. People were also asked not to spit in and litter public places. The Howrah City Police has also taken up a move to clean the Santragachi Lake. Besides cleaning the lake, awareness will also be created among the local people so that no one dumps garbage in and around the lake that turns into a place of attraction every winter for migratory birds. A programme will be held at Santragachi Lake in this connection on Saturday morning, in which senior officers of Howrah Police Commissionerate will be present.
Infants and new born kids, if seated in cars for more than 30 minutes, may be at a risk of suffocation, suggests a study published in the Daily Mail.According to the study, very young babies whose neck muscles are not strong enough to stop their heads flopping forward could stop breathing. This increases the risk they will be unable to breathe — with potentially fatal results.“There should be separate advice for very young babies. If you can avoid a journey, it’s probably better to do so, restricted to no more than half an hour or so. But try to avoid unnecessary car journeys with young babies,” said Peter Fleming, Pediatrician at the Bristol University. Also Read – Add new books to your shelfResearch carried out by the researchers used a laboratory in a laboratory to replicate the effects of sleeping in a car seat during a car journey at 30mph.After half an hour in the seat, the amounts of oxygen in the blood of babies under two months old were found to have dropped ‘significantly’ while their heart rates increased.The authors said their findings still mean babies should travel in a properly secured child seat during car journeys — as is required by law. But they advise that an adult should sit next to the baby to make sure the infant is breathing properly.“There have been reports of deaths of infants who have been left in a sitting position, including in car seats both on journeys, and when parents have used it as an alternative to a push chair or cot for the infant to sleep in,” he added.
Kolkata: The year is going to end on a sweet note for the people of Kolkata as a three-day ‘rosogolla’ festival is being organized in the city to pay tribute to its inventor Nobin Chandra Das. Bengal had last year received a Geographical Indication (GI) tag for the round-shaped syrupy sweet. The three-day gala, beginning December 28, will celebrate 150 years of ‘rosogolla’ invention, said West Bengal minister Sashi Panja. “The first-ever ‘Baghbazar-O-Rosogolla Utsab’, supported by the state government, is aimed at paying tribute to Das and his invention of the syrupy cheeseball, which went on to conquer taste buds across the world,” Panja, who is also the chief convener of the fest, told reporters here recently. Also Read – Rain batters Kolkata, cripples normal life The sweetmeat festival will also highlight the history, heritage and culture of Baghbazar – the hub of the Bengal renaissance, she said. Singer Hariharan is set to grace the occasion and enthrall visitors with his performance. The fest committee, with painter Suvaprasanna as chief adviser and the rosogolla inventor’s heir Dhiman Das as member, has also arranged for cooking competitions and quiz contests. Sweetmeat traders from across the state will get an opportunity to dish out their signature items during the three-day fiesta, Panja, the state minister for women and child development and social welfare, said. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killed “I fell very proud that Rosogolla has been invented in this city, in Baghbazar. We will also observe 100 years of Bagbazar Sarbojanin Durgotsav (annual Durga puja) at the fest,” she added. Nobin Chandra Das had opened a sweet shop at Jorasanko in north Kolkata in 1864, but he tasted success after moving his business to Baghbazar in 1866. It was sometime in 1868, when he created ‘rosogolla’ out of fragmented clumps of cottage cheese and sugar syrup.
Kolkata: The Mamata Banerjee government is likely to table The Technicians’ Studio Private Limited (Amendment) Bill, 2019, at the ongoing Assembly session for the purpose of vesting better superintendence, direction, control and management of the affairs and business of the studio.The Bill is aimed at simplifying its operation and making provisions for better control of the state government over the affairs of the Technicians’ Studio. According to the Bill, the state government will constitute a board in this regard, which will be named West Bengal Board for Technicians’ Studio. Also Read – Rs 13,000 crore investment to provide 2 lakh jobs: MamataThe board, consisting of seven members, will be headed by a chairman who shall be the minister in charge of Information and Cultural Affairs (I&CA) department, or any other minister appointed by the Chief Minister. Chief Minister Mamata Banerjee herself holds charge of the I&CA department and is likely to be the chairman of the board. The board will also consist of a vice-chairman, appointed by the state government and members in the form of secretary of I&CA, secretary of Finance department, joint secretary of I&CA, one officer below the rank of joint secretary of I&CA and three other persons from the film or television industry in the state, as nominated by the state government. According to the Bill, the estimated annual financial application for constitution of the board is Rs 19,37,000, which will be borne by the Technicians’ Studio from its revenue. Recently, BJP in the state has launched two organisations for the Bengali film and television industry, which has been a stronghold of the ruling Trinamool Congress.
Kolkata: Trinamool Congress district president of Birbhum Anubrata Mondal has been admitted to SSKM Hospital with various ailments.According to hospital sources, a surgery may be performed on Mondal after some clinical tests. It has been learnt that the patient has been suffering from high blood sugar and high blood pressure. His condition is stated to be stable now. The patient has also complained of skin infection. He has been kept under observation at the Woodburn ward of the hospital. It has been learnt that doctors deferred the surgery after the various clinical tests confirmed that his blood sugar and blood pressure levels were much higher than normal. Also Read – Rs 13,000 crore investment to provide 2 lakh jobs: MamataThe doctors will take the decision on surgery only after the sugar and pressure levels come to normal. A medical board has also been formed for the treatment of the Trinamool Congress leader from Birbhum. Mondal had visited a local doctor who had advised him to consult the doctors at SSKM on an immediate basis. Following the local doctor’s advice, Mondal visited the hospital. The doctors admitted the patient after primary check-up. He has been undergoing treatment at cabin number 105 of the Woodburn ward. The doctors said that he was also suffering from hypertension. Mondal will be kept under monitoring for the next few days. Many leaders of Birbhum district came to the city after hearing the district president’s ailments. As a result, party leaders are worried about next year’s municipal elections. It may be mentioned here that Mondal has been instrumental in strengthening the party’s organisation.
A fleet of driverless cars can improve overall traffic flow by at least 35 per cent by working together, a study suggests. The researchers programmed a small fleet of miniature robotic cars to drive on a multi-lane track and observed how the traffic flow changed when one of the cars stopped. When the cars were not driving cooperatively, any cars behind the stopped car had to stop or slow down and wait for a gap in the traffic, as would typically happen on a real road. Also Read – Add new books to your shelfA queue quickly formed behind the stopped car and overall traffic flow was slowed. However, when the cars were communicating with each other and driving cooperatively, as soon as one car stopped in the inner lane, it sent a signal to all the other cars. “Autonomous cars could fix a lot of different problems associated with driving in cities, but there needs to be a way for them to work together,” said Michael He, an undergraduate student at Cambridge, who designed the algorithms for the experiment. Also Read – Over 2 hours screen time daily will make your kids impulsiveCars in the outer lane that were in immediate proximity of the stopped car slowed down slightly so that cars in the inner lane were able to quickly pass the stopped car without having to stop or slow down significantly. Additionally, when a human-controlled driver was put on the ‘road’ with the autonomous cars and moved around the track in an aggressive manner, the other cars were able to give way to avoid the aggressive driver, improving safety. “If different automotive manufacturers are all developing their own autonomous cars with their own software, those cars all need to communicate with each other effectively,” said reearchers. Starting with inexpensive scale models of commercially-available vehicles with realistic steering systems, the Cambridge researchers adapted the cars with motion capture sensors and a Raspberry Pi, so that the cars could communicate via wifi. They then adapted a lane-changing algorithm for autonomous cars to work with a fleet of cars. It allows for cars to be packed more closely when changing lanes and adds a safety constraint to prevent crashes when speeds are low. A second algorithm allowed the cars to detect a projected car in front of it and make space. They then tested the fleet in ‘egocentric’ and ‘cooperative’ driving modes, using both normal and aggressive driving behaviours, and observed how the fleet reacted to a stopped car. In the normal mode, cooperative driving improved traffic flow by 35 per cent over egocentric driving, while for aggressive driving, the improvement was 45 per cent. The researchers then tested how the fleet reacted to a single car controlled by a human via a joystick. “Our design allows for a wide range of practical, low-cost experiments to be carried out on autonomous cars,” said Prorok. “For autonomous cars to be safely used on real roads, we need to know how they will interact with each other to improve safety and traffic flow,” he said.
A small town of Świebodzin in Poland is the home of possibly the world’s biggest statue of Jesus Christ in the world. The construction was finalized in 2010 and the statue itself is 108 feet tall, but if you count the mound on which it stands and the crown on its head it reaches an impressive height of 167 feet. It therefore wins against the 133 feet tall Cristo de la Concordia in Cochabamba, Bolivia, and Rio de Janeiro’s Christ the Redeemer, reaching 125 feet.Świebodzin. Photo by Mohylek CC BY-SA 3.0The statue cost $1.5 million and was funded entirely through crowdfunding, with local people and the Polish diaspora as far away as Canada contributing in the building of the statue. It was believed it would bring a miracle to the little town.The miracle people were hoping for, supported by claims of the local government, was intended to be of economical nature.Even though in the first year of its construction the statue attracted 15,000 devoted pilgrims and tourists to witness its unveiling, it seems the Christ of Świebodzin did not turn out to be so successful in attracting money — as some sceptics already predicted.Christ the KingMany residents believed that the money invested towards building the huge statue could have been better spent on repairing roads, building new hospitals or schools.According to the Guardian, during its controversial construction “Waldemar Roszczuk, editor of the local newspaper Gazeta Swiebodzinska, has been leading a campaign against the structure, which has been compared to the type of communist-era icons that once commanded squares and public places. ‘It’s a monster of a statue which has nothing to do with Christian teaching,’ he said. ‘It’s making us a laughing stock in the whole country.’”The statue under construction in August 2010. Photo by Mohylek – CC BY-SA 4.0Last year, the statue attracted even more controversy when it was “upgraded” in secrecy. Something strange was spotted inside the Christ’s crown.Namely, it was speculated that the crown had been packed full with broadcasting equipment. First it was only speculation, but soon a team of journalists from Polish news outlet Fakt 24 sent a drone over the Christ the King to investigate what exactly is going on with his head.The statue in September 2012. Photo by Aw58 CC BY-SA 3.0The journalists confirmed that the Christ’s crown holds internet broadcasting equipment, complete with antennas that are partly visible from the ground.The journalists proceeded to inquire with the Divine Mercy Parish that is responsible for the statue and oversees it. They asked if the top of Christ’s head was available for rent, having in mind its dimensions.The monument to Sylwester Zawadzki, builder and curator of the Christ the King, located under the statue, 2015. Photo by Dominikosaurus CC BY-SA 4.0The church denied this as a possibility. When the journalists asked about the antennas the spokesperson of the parish claimed they knew nothing about it, despite the proof the journalists provided.However, an internet provider has claimed they are responsible for maintaining the broadcasting signal and confirmed that the request came directly from the parish.The entrance gate to the Christ the King Statue in Świebodzin, 2015. Photo by Dominikosaurus CC BY-SA 4.0The source claimed the equipment is used to power the video surveillance system, but that the signal was also distributed to other users in the area. The provider’s spokesperson asserted that the contract is completely legal, so there was nothing problematic about it for the journalists to investigate.Christ the KingThe system operating at such height is ideally placed to broadcast the signal around the whole town, even reaching the surrounding villages.As Gizmodo reports “the parish might be involved in some sort of effort to monetize the space within the crown of Jesus, but it’s all uncertain.” The opinions were again mixed, with some people seeing it as a sacrilege and others as a completely legitimate and practical place for installing internet broadcasting equipment.Read another story from us: This Fairy Tale Wooden Church in Norway Mixes Pagan and Christian ElementsHowever, the whole system was taken down recently and the internet in Świebodzin has lost its status as a potential miracle and is again a mundane technological feature.
Today we think eating utensils are just an ordinary part of our culture, and not an interesting one for that matter. Knives, spoons and forks are used throughout the world, even though some countries still stick to chopsticks. Nonetheless, the utensils we use today have lengthy histories and many interesting stories attached to their acceptance as a cultural norm. Spoons and knives remain a part of our everyday lives for thousands of years; however, the fork is a relatively recent invention on the grander historical scale.Our familiar cutlery set looked quite different in the pastSpoons originated during the Paleolithic time. Our prehistoric ancestors were regularly using primitive spoons in form of shells and chips of wood. By looking at the names used by different cultures for this utensil we can grasp which type of spoon is used in different parts of the world.Upper Magdalenian culture spoon (between 13,500 and 12,000 BP) from the Prehistoric site of Fontalès, France. Photo by Didier Descouens CC BY-SA 4.0Latin and Greek words are derived from the noun cochlea that signifies the spiral shell. This, of course, indicates the ancient Greeks and Romans included shells into their everyday eating habits. On the other hand, the Anglo-Saxon word spoon originates from spon which means chip of wood.Roman spoons from the Hoxne hoard. Photograph by Mike Peel (www.mikepeel.net) CC BY-SA 4.0We started using spoons crafted from metal much later. In medieval times they were made from precious metals and were exclusively used in the courts and among nobility as they were extremely expensive. However, by the 14th century spoons were made from pewter which made them easily accessible to the citizens regardless of their social status.Spoon, Yurok (Native American), 19th century, Brooklyn MuseumKnives were versatile objects, likewise used throughout prehistoric times. They were used for eating, as well as for hunting and crafting. The knives that were most commonly crafted were pointy and their tips were sharp.In 17th century France King Louis XIV banned the use of these types of knives and declared the new ones should have a ground-down tip. It could be that the sight of people using knives as a toothpick was not an exceedingly pleasant sight on the court.Old carving knife and carving forks, non-stainless steel. Stag handles. Note folding fork guards. Photo by David R. Ingham CC BY-SA 3.0The story of the fork is much rockier and turbulent. Its history is not very long. By looking at its evolution we can learn how the table manners changed throughout time and learn much more about the evolution of our culture in general.Related Video: Divers stumble upon 2,000 ‘Priceless” Gold CoinsEgyptians, Romans and Greeks did use a sort of a lengthy fork, but it did not serve for eating. They used it as a cooking utensil, while they relied on spoons and knives for consuming the food.Bronze forks made in Persia during the 8th or 9th centuryForks in their present form only started to appear in the 7th century in the territories of the Middle East and Byzantine Empire. By the 10th century they were common among wealthy families. However, in the rest of Europe they were absent, people preferred to use their natural forks — fingers and knives.In 1004 the Greek niece of the Byzantine emperor used a fork at her wedding ceremony in Venice. Her act outraged the people attending the wedding, and she was seen as vain and decadent. When she died of plague the clergy was convinced it was due to her sinful extravagance.A few centuries afterwards the fork became widely used in Italy. Catherine de Medici brought a handful of them to France in 1533 upon marrying King Henry II. Forks naturally started to spread throughout Europe by alliances made between noble and royal families and by curious travelers who reported what they witnessed on returning home.Spaghetti forkSo, an Englishman Thomas Coryate started using the fork after a trip to France. People did not take it seriously at first, but soon when the usefulness of this utensil was recognized many more people started to want forks on their table.Read another story from us: Beautiful Home Decor Made From the Golden Gate BridgeAmerica witnessed the widely accepted use of it first in 1850, which marked the completion of fork colonization of the western world.