Science.org

From Motor Control To Team Play In Simulated Humanoid Football

Aug 31, 2022  · Here, we provide a general method for learning integrated high-dimensional motor control and long-term coordinated decision-making. To address the challenges of behavior specification at different scales, credit assignment, and exploration, we combined multiagent RL with pretrained behavior representations at different scales, which we incorporated into the full …

Actived: Thursday Jan 1, 1970

Detail: https://www.science.org/doi/10.1126/scirobotics.abo0235

Robot Operating System 2: Design, architecture, and uses in the wild

Posted: (53 years ago) May 11, 2022  · The next chapter of the robotics revolution is well underway with the deployment of robots for a broad range of commercial use cases. Even in a myriad of applications and environments, there exists a common vocabulary of components that robots share—the need for a modular, scalable, and reliable architecture; sensing; planning; mobility; and autonomy.

Apps Apps Detail

China's aggressive measures have slowed the coronavirus. They …

Posted: (53 years ago) Mar 02, 2020  · Two widely used mobile phone apps, AliPay and WeChat—which in recent years have replaced cash in China—helped enforce the restrictions, because they allow the government to keep track of people's movements and even stop people with confirmed infections from traveling. "Every person has sort of a traffic light system," says mission member ...

Travel Apps Detail

Global threat of arsenic in groundwater | Science

Posted: (53 years ago) May 22, 2020  · The natural, or geogenic, occurrence of arsenic in groundwater is a global problem with wide-ranging health effects for humans and wildlife. Because it is toxic and does not serve any beneficial metabolic function, inorganic arsenic (the species present in groundwater) can lead to disorders of the skin and vascular and nervous systems, as well as cancer (1, 2).

Health Apps Detail

Using satellites to uncover large methane emissions from landfills ...

Posted: (53 years ago) Aug 10, 2022  · Reducing methane emissions is a priority for curbing climate change (1–4).With global methane concentrations increasing at record pace (), identifying sources with high potential for mitigation is a crucial first step.A small number of anomalously strong point sources (“superemitters”) make up a disproportionately large fraction of total emissions and can often …

Apps Apps Detail

SARS-CoV-2 disrupts respiratory vascular barriers by suppressing ...

Posted: (53 years ago) Sep 21, 2022  · A large number of patients with severe COVID-19 die from ARDS, pneumonia, and pulmonary edema, which are induced by vascular hyperpermeability in the lung ().In patients with severe COVID-19, activated ECs produce inflammatory cytokines and adhesion molecules, including intercellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule-1 …

Apps Apps Detail

Research and policy for the food-delivery revolution | Science

Posted: (53 years ago) Aug 18, 2022  · Delivery might promote overeating relative to restaurants given minimum ordering thresholds on many delivery apps and the absence of social control, which may limit the unhealthfulness of what one orders when eating in a restaurant. However, delivery could reduce overeating because leftover food from delivery might be saved for later or shared ...

Restaurant Apps Detail

Temperature-adaptive radiative coating for all-season ... - Science

Posted: (53 years ago) Dec 16, 2021  · In countries such as the United States, ~39% of the total energy consumption is in buildings ().For the residential housing energy portion, ~51% is consumed for heating and cooling to maintain a desirable indoor temperature (~22°C) ().In contrast to most temperature regulation systems, which require external power input, the mid-infrared (IR) atmospheric transparency …

Apps Apps Detail

Carbon emissions from land-use change and management in …

Posted: (53 years ago) Nov 02, 2016  · Terrestrial ecosystems are potentially major carbon stocks that could play an important role in offsetting anthropogenic carbon emissions (1, 2).Carbon storage capacity differs between different terrestrial ecosystems, and changes in land-use type from high-vegetation to low-vegetation biomass usually result in carbon emissions into the atmosphere.

Apps Apps Detail

An investigation of transmission control measures during the ... - Science

Posted: (53 years ago) Mar 31, 2020  · By 23 January 2020, China had imposed a national emergency response to restrict travel and impose social distancing measures on its populace in an attempt to inhibit the transmission of severe acute respiratory syndrome–coronavirus 2 (SARS-CoV-2).

Travel Apps Detail

Monkeypox: The consequences of neglecting a disease, anywhere

Posted: (53 years ago) Sep 15, 2022  · Monkeypox (MPX) is a zoonotic disease caused by the monkeypox virus (MPV), which is a double-stranded DNA virus belonging to the genus Orthopoxvirus, which includes variola virus, the cause of smallpox ().The first human case of MPX was reported in a 9-month-old boy in the Democratic Republic of Congo (DRC) in 1970 (), and MPX cases remained …

Apps Apps Detail

Identification of immunomodulatory drugs that inhibit multiple ...

Posted: (53 years ago) Sep 14, 2022  · The inflammasomes are multiprotein signaling platforms that assemble in the cytosol in response to microbial infections and cell stress. They are recognized by their important role not only for the defense against infections but also for their participation in the genesis of many human inflammatory disorders ().Among the proinflammatory cytokines, active …

Apps Apps Detail

Why the monkeypox outbreak is mostly affecting men who have

Posted: (53 years ago) Jun 20, 2022  · How fast the virus will spread in the months ahead depends on control efforts. National health authorities in Europe, Canada, and the United States have issued guidance about how to reduce the risk of infection, and dating apps have alerted users to the risk of monkeypox and to its symptoms, which may change contact patterns.

Health Dating Apps Detail

Climate change is increasing the risk of a California megaflood

Posted: (53 years ago) Aug 12, 2022  · California is a region more accustomed to water scarcity than overabundance in the modern era. Between 2012 and 2021, California experienced two historically severe droughts—at least one of which was likely the most intense in the past millennium (1, 2)—resulting in widespread agricultural, ecological, and wildfire-related impacts (3, 4) and …

Apps Apps Detail

Microscopic robots with onboard digital control | Science Robotics

Posted: (53 years ago) Sep 21, 2022  · The key difference between this robot and previously reported microscopic machines is the onboard ASIC. Figure 1D shows the computer-aided design (CAD) layout of the IC that controls the robot, fabricated by X-FAB Silicon Foundries in their 180-nm CMOS silicon-on-insulator process. It consists of a well-defined current reference, relaxation oscillator (39, …

Reference Design Apps Detail

The effect of travel restrictions on the spread of the 2019 novel ...

Posted: (53 years ago) Motivated by the rapid spread of coronavirus disease 2019 (COVID-19) in mainland China, we use a global metapopulation disease transmission model to project the impact of travel limitations on the national and international spread of the epidemic.

Travel Apps Detail

Formation and evolution of carbonaceous asteroid Ryugu: Direct …

Posted: (53 years ago) Sep 22, 2022  · Samples of the carbonaceous asteroid Ryugu were brought to Earth by the Hayabusa2 spacecraft. We analyzed seventeen Ryugu samples measuring 1-8 mm. CO 2-bearing water inclusions are present within a pyrrhotite crystal, indicating that Ryugu’s parent asteroid formed in the outer Solar System.The samples contain low abundances of materials …

Apps Apps Detail