CBSE evaluation for class 10, 12 board exams to be done at home by teachers

Final Olympic archery qualification event in June next year

Benin tests teachers for virus ahead of school restart

The teacher was posted at a primary school in Wazirabad under the North Delhi Municipal Corporation.

Autor: Andreas, de Schärding, ca. 15. Jh.
Erschienen 1450
BSB-Signatur Clm 18458

URN: urn:nbn:de:bvb:12-bsb00130120-0
URL: http://daten.digitale-sammlungen.de/~db/0013/bsb00130120/images/

Priya Pradeep, a Bengaluru-based freelance business writer, shares the lessons she learnt from her mother.

Scottish researchers win £12m CCUS funding from European pot - News for the Oil and Gas Sector  Energy Voice

Researchers Describe Why Earth's Magnetic North Pole Is Straying Away From Canada Towards Siberia  The Digital Wise

The residual strain distribution has been measured as a function of depth in both top coat and bond coat in as-received and heat-treated air plasma sprayed thermal barrier coating samples. High-energy synchrotron X-ray beams were used in transmission to produce full Debye–Scherrer rings whose non-circular aspect ratio gave the in-plane and out-of-plane strains far more efficiently than the sin2ψ method. The residual strain in the bond coat is found to be tensile and the strain in the β phase of the as-received sample was measured. The residual strains observed in the top coat were generally compressive (increasing towards the interface), with two kinds of nonlinear trend. These was a `jump' feature near the interface, and in some cases there was another `jump' feature near the surface. It is shown how these trend differences can be correlated to cracks in the coating.

The crystallization of amidase, the ultimate enzyme in the Trp-dependent auxin-biosynthesis pathway, from Arabidopsis thaliana was attempted using protein samples with at least 95% purity. Cube-shaped crystals that were assumed to be amidase crystals that belonged to space group I4 (unit-cell parameters a = b = 128.6, c = 249.7 Å) were obtained and diffracted to 3.0 Å resolution. Molecular replacement using structures from the PDB containing the amidase signature fold as search models was unsuccessful in yielding a convincing solution. Using the Sequence-Independent Molecular replacement Based on Available Databases (SIMBAD) program, it was discovered that the structure corresponded to dihydrolipoamide succinyltransferase from Escherichia coli (PDB entry 1c4t), which is considered to be a common crystallization contaminant protein. The structure was refined to an Rwork of 23.0% and an Rfree of 27.2% at 3.0 Å resolution. The structure was compared with others of the same protein deposited in the PDB. This is the first report of the structure of dihydrolipo­amide succinyltransferase isolated without an expression tag and in this novel crystal form.

Bacterial cytokinesis is mediated by the Z-ring, which is formed by the prokaryotic tubulin homolog FtsZ. Recent data indicate that the Z-ring is composed of small patches of FtsZ protofilaments that travel around the bacterial cell by treadmilling. Treadmilling involves a switch from a relaxed (R) state, favored for monomers, to a tense (T) conformation, which is favored upon association into filaments. The R conformation has been observed in numerous monomeric FtsZ crystal structures and the T conformation in Staphylococcus aureus FtsZ crystallized as assembled filaments. However, while Escherichia coli has served as a main model system for the study of the Z-ring and the associated divisome, a structure has not yet been reported for E. coli FtsZ. To address this gap, structures were determined of the E. coli FtsZ mutant FtsZ(L178E) with GDP and GTP bound to 1.35 and 1.40 Å resolution, respectively. The E. coli FtsZ(L178E) structures both crystallized as straight filaments with subunits in the R conformation. These high-resolution structures can be employed to facilitate experimental cell-division studies and their interpretation in E. coli.

Recently, researchers from Boston University and the Smithsonian Tropical Research Institute in Panama have been taking a closer look at the vibrations that red-eyed treefrog embryos use as cues to trigger early hatching. They discovered that treefrog embryos can evaluate different features of vibrations.

The post Researchers discover treefrog embryos can evaluate different features of vibrations appeared first on Smithsonian Insider.

To help regulators and engineers develop and test such treatment systems, and ultimately enforce these standards, a team of researchers developed a statistical model to see how to count small, scarce organisms in large volumes of water accurately.

The post Smithsonian researchers help block ship-borne bioinvaders with new screening strategy appeared first on Smithsonian Insider.

BROOKINGS, S.D. — Julie DeJong can’t set foot on the ground of an Oregon marsh to gather duck eggs on a spring day in 1875. […]

The post Work of 19th-century oologists enables researcher to track climate change with duck eggs appeared first on Smithsonian Insider.

Smithsonian scientists have discovered hundreds of new species around the world. To mark this year’s International Day for Biological Diversity, May 22, here is a […]

The post Slideshow: Species discovered by Smithsonian researchers the past decade appeared first on Smithsonian Insider.

Puffer fish (Tetraodontidae) are masters of self-defense. When threatened they blow up like a balloon. Not only does this make them harder to swallow, but […]

The post Puffer fish voucher library appeared first on Smithsonian Insider.

A new study by a team of scientists from the Smithsonian’s National Museum of Natural History, the National University of Singapore and the Slovenian Academy of Sciences and Arts have unlocked the secret to mate binding in orb web spiders, and revealed just how it calms the cannibalistic female spider.

The post Suitor’s gentle massage soothes aggressive, cannibalistic female spiders, researchers find appeared first on Smithsonian Insider.

New research on tiny spiders has revealed that their brains are so large that they fill their body cavities and overflow into their legs, say a team of scientists at the Smithsonian Tropical Research Institute in Panama.

The post Brains of tiny spiders fill their body cavities and legs, Smithsonian researchers discover appeared first on Smithsonian Insider.

Small monkey groups may win territorial disputes against larger groups because some members of the larger, invading groups avoid aggressive encounters.

The post Members of small monkey groups more likely to fight, researchers find appeared first on Smithsonian Insider.

Recently, after examining hundreds of photos taken by camera traps set-up to monitor clouded leopards in the park, three Smithsonian researchers say Khao Yai also is quite popular with a different kind of visitor: poachers.

The post Poachers at large in Thailand’s nature reserves despite ranger outposts appeared first on Smithsonian Insider.

The scientists made the spiders exercise by irritating them with a small paint brush and causing them to move around until they became exhausted. Spiders from the group with palps removed were able to travel 300 percent further than spiders with their palps intact.

The post Weight of genitals reduces physical endurance in male orb web spiders, researchers find appeared first on Smithsonian Insider.

Hot spots of mercury pollution in aquatic sediments and soils can contaminate local food webs and threaten ecosystems, but cleaning them up can be expensive […]

The post Toxicity of mercury hot spots can be reduced with application of activated carbon, researchers discover appeared first on Smithsonian Insider.

Poaching wasn’t the largest conservation concern for Asian elephants, an endangered species, until satellite tracking stunned researchers. Scientists at the Smithsonian Conservation Biology Institute (SCBI) […]

The post Poachers are killing endangered Asian elephants for their skin and meat, not their tusks appeared first on Smithsonian Insider.

Digging up early human and animal remains from the field in Africa, performing examination and publishing research about her findings, then enticing and educating the public about the implications are all in a week's work for Briana Pobiner.

The post Meet Our Scientist–Briana Pobiner, human origins researcher at the National Museum of Natural History appeared first on Smithsonian Insider.

The post Kepler 11: A Six-Planet Sonata by Alex Parker, postdoctoral researcher at the Harvard–Smithsonian Center for Astrophysics appeared first on Smithsonian Insider.

Meg studies intergroup competition in white‐faced capuchin monkeys by tracking them through radio telemetry collars and observing their behaviors.

The post Meet our scientist Meg Crofoot, primate researcher in Panama appeared first on Smithsonian Insider.

“Our guide celebrates the beauty of some of the most attractive inhabitants of Panama’s undersea realm and provides an indispensable, easy-to-use tool for their identification,” say the Littlers.

The post Researchers compile colorful on-line guide to marine algae of Panama appeared first on Smithsonian Insider.

One way to avoid a cold or the flu, doctors say, is to stay away from crowded places. Viruses spread fast in places where people […]

The post Sugar is key ingredient to evolutionary success of ants, researchers find appeared first on Smithsonian Insider.

On March 26, 1912, a donation from Japan arrived in Washington, D.C.―3,020 ornamental cherry trees, sparking one of the biggest springtime annual attractions in the […]

The post Washington, D.C.’s Cherry Trees are Very Good at Planning for the Future appeared first on Smithsonian Insider.

UTLA says it is at an impasse with the Los Angeles Unified School District over a new contract for its 31,000 teachers. ; Credit: File photo by Letsdance Tonightaway/Flickr Creative Commons

The United Teachers Los Angeles declared an impasse Wednesday in its talks with the Los Angeles Unified School District.

The action opens the way for a mediator to be brought in to help bring about a settlement.

Contract talks have been ongoing since July, UTLA said on its website.

"There is still a significant gap between the two sides on compensation," the union stated. UTLA is seeking an 8.5 percent, one-year increase; LAUSD has offered a 5 percent increase. 

The union said the district is "refusing to bargain in good faith on student learning conditions, and threatening educator layoffs as a scare tactic."

LAUSD Superintendent Ramon Cortines said in a statement that the district agrees the talks are at an impasse.

"I've been disappointed and frustrated by the lack of progress toward an agreement," he said. "It's my hope that the appointment of a mediator will lead to an expeditious settlement that ultimately supports our students and the District at large."

UTLA represents 31,000 members, including teachers and health and human service professionals.

The differences between the two sides amount to more than $800 million, the district said in its statement. Cortines has maintained that the district is facing a deficit. The union insists the district has money.

Other issues dividing the two sides include class room size and teacher evaluations.

This content is from Southern California Public Radio. View the original story at SCPR.org.

LAUSD Superintendent Ramon Cortines commented Thursday on teacher contract talks that have been ongoing since July.; Credit: Benjamin Brayfield/KPCC

A budget deficit is preventing the Los Angeles Unified School District from offering teachers more than a 5 percent raise, Superintendent Ramon Cortines said Friday.

"I want some resolution," Cortines told reporters, but he said the district is now projecting a shortfall of $160 million heading into the next school year.

United Teachers Los Angeles, the union representing 31,000 teachers, declared an impasse Thursday in the contract negotiations. The two sides have been bargaining since July.

The teachers haven't had a pay increase in eight years, and their salaries are below that of neighboring districts. 

"You are not going to recruit and retain the quality teachers you need," UTLA President Alex Caputo-Pearl told KPCC's AirTalk this week. The union is seeking an 8.5 percent raise as well as smaller class sizes, more counselors and nurses, and revised teacher evaluations.

Cortines said the district's pay raise offer of 5 percent, retroactive to July 2014, would help make salaries more competitive. But he said the projected deficit is why LAUSD can't afford more.

Projections for the deficit have changed over the months. Last October, it was $365 million; in January, $88 million; and this month, $160 million. 

Teachers union representatives said California schools are receiving more money this year than any time since the recession. Gov. Jerry Brown's Local Control Funding process, which gives local districts more resources for education, is projected to garner the district $240 million more next school year. 

Cortines said he hopes to reach an agreement and he cautioned against any walkout.

"You talk about a budget deficit? It will exacerbate the budget deficit, because parents have other options," Cortines said. "They can go to other schools, private, parochial schools, they can go to charter schools, etc."

Cortines said a mediator is being called into the talks to help resolve the impasse.

The superintendent also repeated his doubts that the district can currently afford to put a computer in the hands of every district student. The program, a key initiative of his predecessor, John Deasy, used bond funds to pay for iPads and other devices.

Cortines said a statement elaborating on his remarks to reporters that "as we are reviewing our lessons learned, there must be a balanced approach to spending bond dollars to buy technology when there are so many brick and mortar and other critical facility needs that must be met."

This content is from Southern California Public Radio. View the original story at SCPR.org.

As researchers’ and teachers’ understanding of how best to learn and teach science evolves and curricula are redesigned, many teachers are left without the experience needed to enhance the science and engineering courses they teach, says a new report from the National Academies of Sciences, Engineering, and Medicine.

A new report from the National Academies of Sciences, Engineering, and Medicine finds K-12 teachers face new expectations and more demands from policymakers, parents, students, and schools, including addressing changes in curriculum standards, the emergence of more explicit teaching goals, and shifts in what it means to support all students in their development.

Engineering is emerging as an important topic in K-12 education in the U.S., and is being incorporated into education standards, instructional materials, and assessments.

Patt's Hats for Monday, April 8.; Credit: Michelle Lanz/KPCC

The twinset, in russet and camel colors, was my ‘homage’ to Margaret Thatcher, Britain’s first woman prime minister, who died Monday at the Ritz Hotel in London.
 
If you're unfamiliar with a twinset, it's the classic matching sweater-duo ensemble, sleeveless or short-sleeved sweater under a cardigan, a style much favored in the U.S. by June Cleaver and sorority girls in the 1950s, like the classic insufferable rich sorority girl parody from “Auntie Mame":

And in Britain by a lady of a certain age and certain class. It is usually worn with pearls, ideally three strands. Odd numbers of strands are considered more chic than even numbers. It’s probably what she wore “off duty” as prime minister.

One can’t see her [see, I’m channeling her already!] lounging about Number 10 Downing Street in velour sweats, but on duty and on display in her prime ministerial position, though, she almost always wore a kind of uniform, a brightly colored suit, ladylike but not alluring, and not unlike what the Queen wears. [In the same spirit, the Queen wears twinsets when she’s off-duty and having fun, which is to say at some horsy event or another.] 

Because Thatcher was Britain’s first woman prime minister, Britons enjoyed handicapping the relationship between their head of state [the Queen] and the head of government [the prime minister]. Theirs was not the affectionate relationship of, for example, the Queen and Winston Churchill. And the best sartorial story about the relationship is the story – which has entered into myth if not into the annals of fact – that Mrs. Thatcher’s office once called Buckingham Palace in advance of a joint appearance to find out what the Queen would be wearing so Mrs. Thatcher wouldn’t commit lese majeste and wear the same color.

The Queen, Mrs. T’s office was informed, doesn’t take any notice of what other people are wearing.
 
I wrote about Mrs. T when she came here in 1991 to celebrate the 80th birthday of her “political soulmate,” former president Ronald Reagan. She visited the Reagan library, under construction, and the JPL, among other spots. You can read that account here.
 
And here’s my obituary of the former PM.
 
I last saw her in 2002, in St. Paul’s Cathedral, at the celebration of the Queen’s golden jubilee. I actually heard her before I saw her – that unmistakably clear voice whose pitch she worked hard to shape into the pitch and tone that became part of her political toolkit. Her funeral, next Wednesday, will be at St. Paul’s. 

Now back to my outfit! The skirt is a vintage Sonia Rykiel, which is worth the constant battle with moths to keep it in repair. I like vintage for myriad reasons: no one else is wearing what you’re wearing … the fabrics are usually of much better quality and more interesting than present-day ones … and unlike current store-bought things, vintage has the merit of being environmentally friendly.
 
I was tickled to see my viewpoint endorsed by the accomplished Vanessa Paradis, the charming and glamorous French singer and actress, Chanel model, Lagerfeld muse, and the new face of H&M’s new environmentally conscious line. Here she talks about embracing those virtues herself. Merci, Vanessa!
 
Oh, I spared the oysters and didn’t wear pearls with my twinset. Rose gold is the choice du jour.  Real? I wish!

This content is from Southern California Public Radio. View the original story at SCPR.org.

An extinct reptile related to crocodiles that lived 212 million years ago in present day New Mexico has been named as a new species, Vivaron haydeni, in a paper published this week by Virginia Tech's Department of Geosciences researchers.

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Over half of a low-energy building’s environmental impact occurred before it was even occupied, a new case study from Italy calculates. The researchers recommend expanding the environmental assessment of buildings from just the operational stage of a building’s life, when it is in use, to include production and transport of materials, construction activities and building maintenance. A wide range of environmental impacts should also be considered, they argue, and not just energy use.

In 2008, the injection of CO2 started at Ketzin in Germany, Europe’s first onshore carbon storage site. A recently published paper has reported on the findings of experiments conducted on the rocks at Ketzin, which contributed important information about their safety and feasibility for storing CO2. No significant changes to the rocks were observed 15 months after they had been injected with CO2.

A new approach giving practical guidance for engaging communities in assessing and managing risks associated with re-development of contaminated land could help to smooth local decision making processes. It recommends a set of principles that risk managers and policymakers can use to shape their community engagement activities.

Micromax forays in the race of in-house mobile launcher driven by Machine Learning and AI to enhance the user experience.

A joint water and carbon cap-and-trade system could lead to a more sustainable future, a recent study suggests. Such a system could account for the important links between energy, water and climate change, while at the same time, ensuring economic growth.