Unlike the other Bharatiya Janata Party-led governments, Assam has not proposed doing away with most labour laws for a certain number of years. Instead it has proposed introducing fixed-term employment to help both workers and industries, and seeks to take more firms out of the ambit of laws governing factories and contract workers.

Melting of the semicrystalline structure of native tapioca starch granules is correlated to solution viscosity for elucidating gelatinization and gelation processes.

Owing to their combined open-framework structures and semiconducting properties, two-dimensional thio­stannates show great potential for catalytic and sensing applications. One such class of crystalline materials consists of porous polymeric [Sn3S72−]n sheets with molecular cations embedded in-between. The compounds are denoted R-SnS-1, where R is the cation. Dependent on the cation, some R-SnS-1 thio­stannates transition into amorphous phases upon dispersion in water. Knowledge about the fundamental chemical properties of the thio­stannates, including their water stability and the nature of the amorphous products, has not yet been established. This paper presents a time-resolved study of the transition from the crystalline to the amorphous phase of two violet-light absorbing thio­stannates, i.e. AEPz-SnS-1 [AEPz = 1-(2-amino­ethyl)­piperazine] and trenH-SnS-1 [tren = tris­(2-amino­ethyl)­amine]. X-ray total scattering data and pair distribution function analysis reveal no change in the local intralayer coordination during the amorphization. However, a rapid decrease in the crystalline domain sizes upon suspension in water is demonstrated. Although scanning electron microscopy shows no significant decrease of the micrometre-sized particles, transmission electron microscopy reveals the formation of small particles (∼200–400 nm) in addition to the larger particles. The amorphization is associated with disorder of the thio­stannate nanosheet stacking. For example, an average decrease in the interlayer distance (from 19.0 to 15.6 Å) is connected to the substantial loss of the organic components as shown by elemental analysis and X-ray photoelectron spectroscopy. Despite the structural changes, the light absorption properties of the amorphisized R-SnS-1 compounds remain intact, which is encouraging for future water-based applications of such materials.

The predictability and scale of seasonal changes in a habitat help determine the distance migratory species move and whether the animals always travel together to the same place or independently to different locations.

The post Changes in vegetation determine how animals migrate, scientists find in new National Zoo study appeared first on Smithsonian Insider.

Hellbenders, aquatic salamanders from the eastern United States, are surprisingly good at dealing with unpredictable weather. In a recent study published in the Journal of […]

The post Zoo scientists find sudden stream temperature changes boost hellbender immune systems appeared first on Smithsonian Insider.

In certain scenarios, a Subsystem Reference block changes its position. It can happen during: 

1. Loading of top model which contains the Subsystem Reference block 
2. Synchronization of Subsystem Reference block's contents
3. Converting a subsystem to Subsystem Reference block 

Reducing one of the nations leading causes of death and injury – medical errors – will require rigorous changes throughout the health care system, including mandatory reporting requirements.

To enhance the vitality and overall operation of the nations patent system, federal officials should take decisive steps to increase the systems flexibility, openness, and reliability, says a new report from the National Academies National Research Council.

Although most people who receive and manage Social Security benefits on behalf of other individuals perform their duties well.

The aging of the U.S. population will have broad economic consequences for the country, particularly for federal programs that support the elderly, and its long-term effects on all generations will be mediated by how -- and how quickly -- the nation responds, says a new congressionally mandated report from the National Research Council.

A new congressionally mandated report from the National Academies of Sciences, Engineering, and Medicine proposes updated revisions to the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) to better align with the Dietary Guidelines for Americans and promote and support breast-feeding.

Producing more precise county-level estimates of crops and farmland cash rents will require integrating multiple data sources using model-based predictions that are more transparent and reproducible, says a new report from the National Academies of Sciences, Engineering, and Medicine.

Centering science instruction around investigation and design can improve learning in middle and high schools and help students make sense of phenomena in the world around them.

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.

A new rapid expert consultation from a standing committee of the National Academies of Sciences, Engineering, and Medicine responds to questions from the White House Office of Science and Technology Policy (OSTP) regarding survival of the COVID-19 virus in relation to temperature and humidity and potential for seasonal reduction and resurgence of cases.

New entrance at The Huntington Library, Art Collections, and Botanical Gardens. ; Credit: Tim Street-Porter/The Huntington

For years, I’d feared the worst. Behind that intrusive belt of chain link and green canvas fence, with all the hidden noise of power digging machines, smashing jackhammers and growling tractors going on behind it, and heaps of dirt piled high, I dreaded that something terrible was going on in the dark, hidden heart of our dear old Huntington.

We were promised a new visitor center, a new store, a new cafe and restaurant. I imagined the Disney-fied worst: Henry Huntington’s Roller Coaster Red Car Ride; Pinky’s Pinkberry Parlor. The Blue Boy Fashion Center. Maybe even a giant Rem Koolhaas-LACMA style amoeba of purple reinforced concrete sprawling all over the lawns between the library and the old gallery.

My fears were groundless. The $68 million (not much more than the Getty paid for its new Manet) 52,000 square foot Education and Visitor Center addition is in perfect harmony with the early 20th Century original library and art gallery, perhaps more so than some previous increments, such as the nearby and blankly imposing Munger Research Center. 

The addition is named after outgoing Huntington chief Steven S. Koblik, who engineered much of the funding and planning for the facility. He’s got something to be proud of in his retirement: a new garden-centered segment of new facilities that founder, pioneer transit tycoon Henry Huntington, would probably have enthused over.

(The Huntington Store at The Huntington Library, Art Collections, and Botanical Gardens. Photo: Tim Porter-Street/The Huntington)

With its mighty $400 million endowment and the muscular fundraising power that enticed squillionaire Charlie Munger to donate hugely to this project (not to mention that research center), the venerable Huntington institution could have easily erected something expensively and grandiloquently modern.  

But its directorate and patrons seem to understand an important fact about the place: Most visitors don’t go there to be dazzled. We go there to be enthralled, even comforted by the century-old institution’s enduring and deeply reassuring ambiance that we are privileged to inhabit during our visits to its galleries of great art, its acreage of exquisite gardens and Arcadian vistas.

The Huntington possesses what designer Sheryl Barton, who co-created the new landscaping with the Huntington’s Jim Folsom, spoke of at the opening press conference as “the choreography of experience.”

That experience includes the new California-Mediterranean groves and gardens and the low-lying new structure that includes an expanded store, new classrooms, courts, cafes and an auditorium. With its simple, Tuscan-columned loggias and red-tiled roofs (and, oh, yes, even that showy glass dome on the Rose Hills Foundation Garden Court), it all effortlessly blends into the traditional whole.

Although the Huntington doesn’t seem to be planning on a new influx of visitors, it’s hard to see this new, more user-friendly front office isn’t going to attract more people to its San Marino location than the current 600,000 per year.

Particularly considering how regional museum attendance in general has boomed over recent decades. Will this abate the quiet private experience many of us Huntington fans have shared and treasured over the years?

(The Huntington will be installing this Alexander Calder sculpture, the  Jerusalem Stabile, this spring. Here, it's seen at the Rijksmuseum, Amsterdam. Calder Foundation; gift of the Philip & Muriel Berman Foundation to the Calder Foundation. Copyright © 2015 Calder Foundation /Artists Rights Society (ARS) Used with permission of The Huntington)

Probably. But there will also be important new things to see — like  Alexander Calder’s 12-by-20-foot Jerusalem Stabile, which beckons you into the new addition, and two powerful, newly acquired murals by the great 20th Century California artists Millard Sheets and Doyle Lane. Plus a new and glorious vista from the cafe’s terrace over to the original old Huntington villa — now gallery — where all this began, over a century ago.

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

A recent study has revealed how water use has changed across the world over the last 60 years. Growing populations and economic development, particularly in newly-emerging countries, have increased water demand, but technological developments have led to water efficiencies and savings, which moderate these demands.

The world’s marine ecosystems are at risk of sudden and damaging changes. The authors of a recent study say that co-ordinated management of the many drivers of marine changes, such as overfishing and pollution, is needed across international, national and local scales to help avoid the ‘regime shifts’ that affect ecosystem services and human wellbeing.

A new combination of three models has explored the future dynamics of European livestock distribution. The results indicate that, without environmental policy, livestock density will increase both inside and outside current livestock hotspots. This will also occur to a certain degree with regulation, but the risk of negative impacts will be less likely.

Children are thought to be at greater risk from exposure to environmental pollutants than adults because their bodies are still developing and their lower body weight means that relative exposure is higher. A new study reports background exposure levels in German children aged 3-14.

A new analysis of greenhouse gas (GHG) emissions from Swiss household consumption reveals a large difference between the best and worst households – which range between the equivalent of 5 to 17 tons of CO2 per capita per year. It suggests GHG reductions are possible if more households adopt similar consumption patterns to those with the lowest emissions.

How does climate change cause extinction? An extensive analysis of the available evidence has explored this question and concluded that climate change’s effects on the interactions between species is likely to be the main reason for local extinctions. For example, climate change may lead to the loss of prey for predators.

Concrete and asphalt's environmental impact could be reduced by over a third through changes to manufacturing processes and the use of alternative raw materials, according to research. A scenario study based on life cycle analysis has indicated that using alternative types of cement in concrete and producing asphalt at lower temperatures could substantially improve the green credentials of these two common building materials.

Emissions of sulphur dioxide (SO2) and nitrogen oxides (NOx) have fallen significantly across Europe since 1960. According to recent research, this is caused by a combination of factors including improved energy efficiency, a changing fuel mix and specific emission control measures. At the same time CO₂ emissions have only increased moderately, mainly due to improvements in energy efficiency.

Fire frequency is changing globally, yet it is unclear how such changes affect soil carbon and nitrogen storage, and, in turn, impact on ecosystem productivity. A study was conducted to evaluate how increased fire frequency drives changes in soil carbon and nitrogen over multiple decades. Data from 48 sites that have experienced altered fire frequency were analysed, spanning up to 65 years. The meta-analysis found that frequently burned sites experienced a significant decline in surface soil carbon and nitrogen over time — on average having 36% less carbon and 38% less nitrogen, after 64 years, than sites that were protected from fire. The researchers also observed comparable changes in an independent field dataset and in dynamic model simulations of global vegetation. The results indicate that future changes in fire frequency may lead to long-term changes in the amount of carbon and nitrogen stored in soils, especially in savanna grasslands and broadleaf forests. This has implications for the global carbon cycle and for ecosystem productivity and should, therefore, be considered in the design and implementation of relevant policy instruments.

Improving local water quality could mitigate the damaging effects of rising CO2 on marine ecosystems, new research suggests. Scientists in Australia found that nitrogen pollution in seawater, when acting in combination with heightened CO2 concentrations, had a significant effect on the growth of turfing algae, which displace kelp forest ecosystems.

A recent study has revealed how water use has changed across the world over the last 60 years. Growing populations and economic development, particularly in newly-emerging countries, have increased water demand, but technological developments have led to water efficiencies and savings, which moderate these demands.

Changing agricultural management practices can significantly improve water quality, according to a long-term study. The researchers found that in a US lake the total amount of suspended sediment fell, and water clarity increased as a result of multiple integrated practices implemented to reduce runoff in the surrounding area. These included introducing buffer strips of vegetation and planting trees.

Land use changes over the last century in the Mediterranean area may be sparking shifts in weather patterns locally, across Europe, and around the globe, suggests a new study. The findings bring to light new complexities that can be integrated into climate models and predictions.

Available evidence from the last decade, describing the nature, behaviour and effect of engineered nanoparticles (ENPs) in the environment, has been reviewed. It identified factors that influence ENP distribution and fate and highlighted the existence of significant research gaps which, if filled, would help in understanding the impacts of long-term accumulation of nanomaterials and the changes that occur to them when they are released into the environment.

Changes in the timing of biological events in plants, such as flowering, observed in recent decades are in response to ongoing climate change, according to recent research from Spain. These results can be used to improve modelling of the effects of future climate change on plants and crops in the region.

Changes in agricultural policy and practice, such as increased intensification and fertiliser use, are responsible for many historical extinctions of pollinator populations in the UK, suggests new research. The study looked at bee and wasp extinction rates in relation to agricultural practices since the mid-19th century.

Citizen scientists are increasingly playing an important role in monitoring environmental conditions around the world. There have been concerns, however, that the quality of volunteer data might not match the reliability of data collected by professional scientists. A new study has found that both citizen scientists and professional scientists were able to identify widespread decreases in the cover of live corals and increases in rubble and sand, during two long-term monitoring programmes of coral reefs. These results show that volunteers can indeed play a meaningful role in the conservation of these reefs, say the authors of this study.

The declining number of bee and wasp species in England has been linked to historic changes in land-use in a recent study. Researchers say that policies which promote diverse landscapes offer more opportunities for bees and wasps to nest and forage and are best for conserving these insect pollinators.

As global temperatures continue to warm, sea-levels are expected to rise, increasing the risk of saltwater inundating wetlands in low-lying coastal areas. A study in Wales, UK, describes how rising sea levels will result in a shift from a wetland rich in plant diversity to one dominated by saltwater and mud in 200 years’ time.

Climate change and other environmental changes can have major impacts on plant communities. Researchers have assessed current methods of understanding the impact of these global changes on vegetation and outlined the implications for future research. Vegetation is highly dynamic and likely to respond in complex ways to environmental changes. Researchers should, therefore, use a variety of methods to predict vegetation change in order for findings to be useful for policymaking.

The influence of light-emitting diodes (LED) on grassland invertebrate communities has been assessed in a recent study. White LEDs increased the total abundance and changed the species of spiders and beetles recorded. Dimming lights and switching lights off during the middle of the night were the best ways of reducing the effects on beetle and spider numbers.

Considering the impact on soil carbon, biodiversity and ecotoxicity is important when assessing the environmental footprint of dairy products, suggests a new study, which explored the impacts of organic and conventional milk production in three types of system established in Western Europe. The study found that organic milk production had a significantly lower impact on ecotoxicity and biodiversity than conventional milk production, and suggests that including soil carbon changes in the assessment would result in greater reductions in the carbon footprint of organic, rather than conventional, milk — in some cases by up to 18%.

Different management practices using pesticides affect the diversity, number and ecological traits of ground spiders in apple orchards, a new study finds. Because spiders are viewed as good indicators of the quality of an entire ecosystem, the results reveal that organic orchard management may be better for local management and landscape characteristics when compared to those with pesticide use.

Researchers have shown that in the Baltic Sea the abundance of common fish species, used as an indicator of ecosystem health, is influenced by climate-related oceanic conditions at a local scale, such as sea temperature. The researchers suggest, therefore, that the environmental status of coastal fish communities in the region should be assessed and managed at a local scale.

Implementation of technology to clean the flue gases of coal-fired power plants has significantly reduced sulphur and fine particle emissions that cause environmental damage. However, recent research suggests that plants applying this technology would emit more ultrafine particles (1-10 nanometer (nm) diameter) that affect the formation of clouds, with the unintended consequence of changing the amount and intensity of rainfall downwind of fossil fuel power installations.

Low emission zones (LEZs), which restrict access for high emission vehicles, have proven to be a successful way to improve air quality in line with EU regulations. An analysis of London’s LEZ has revealed discernible reductions in air pollution levels five years after implementation.

It is increasingly evident that human health is closely linked to the environment, and to biodiversity. A study commissioned by the European Commission summarises the many and varied ways in which disturbances to biodiversity affect the spread of human diseases.

March 30, 2020: Effective immediately, physical deliveries should be dropped off to the lobby of the Government Center in the secure drop box labeled Department of Finance and Budget, Division of Procurement.

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