The third round of results from the ADA Health Policy Institute poll on the impact of COVID-19 on dental practices was released April 27, with 79% of dentists reporting their practices are closed except for emergencies and 17% are closed completely.

Leaders across the United States should plan for a worst-case scenario, second wave to the COVID-19 pandemic, including no vaccine availability or herd immunity, say experts at the University of Minnesota.

Engineers in China have developed a fossil fuel-free jet propulsion prototype design that uses microwave air plasmas.

Originally published in June 1899

-- Read more on ScientificAmerican.com

A sea of red swept the capitals of North and South Carolina on Wednesday, as thousands of teachers turned out to demand higher pay and more school funding.

At least four Kentucky school districts were forced to close last Thursday as hundreds of teachers called in sick to continue protesting what they believe to be anti-public education proposals in the state legislature.

Hawaii teachers have joined the Red for Ed movement: Last week, dozens of teachers across the state staged a "walk-in" protest to spread awareness about what they see as a lack of funding for public schools.

Teachers are asking for support for a ballot measure that would put in place a property tax to fund schools.

Discoveries in geography.

Designer drugs -- Fentanyl.

A sea of red swept the capitals of North and South Carolina on Wednesday, as thousands of teachers turned out to demand higher pay and more school funding.

London : Macmillan, 1893.

Pac-12 Networks' Mike Yam interviews former Oregon State guard Sydney Wiese to hear how she's recovering from contracting COVID-19. Wiese recounts her recent travel and how she's been lifted up by steadfast support from friends, family and fellow WNBA players. See more from Wiese during "Pac-12 Playlist" on Monday, April 6 at 7 p.m. PT/ 8 p.m. MT on Pac-12 Network.

Restricted Boltzmann Machine (RBM) is an energy based, undirected graphical model. It is commonly used for unsupervised and supervised machine learning. Typically, RBM is trained using contrastive divergence (CD). However, training with CD is slow and does not estimate exact gradient of log-likelihood cost function. In this work, the model expectation of gradient learning for RBM has been calculated using a quantum annealer (D-Wave 2000Q), which is much faster than Markov chain Monte Carlo (MCMC) used in CD. Training and classification results are compared with CD. The classification accuracy results indicate similar performance of both methods. Image reconstruction as well as log-likelihood calculations are used to compare the performance of quantum and classical algorithms for RBM training. It is shown that the samples obtained from quantum annealer can be used to train a RBM on a 64-bit `bars and stripes' data set with classification performance similar to a RBM trained with CD. Though training based on CD showed improved learning performance, training using a quantum annealer eliminates computationally expensive MCMC steps of CD.

Jessica K. Hargreaves, Marina I. Knight, Jon W. Pitchford, Rachael J. Oakenfull, Sangeeta Chawla, Jack Munns, Seth J. Davis.

Source: The Annals of Applied Statistics, Volume 13, Number 3, 1817--1846.

Abstract:
Rhythmic data are ubiquitous in the life sciences. Biologists need reliable statistical tests to identify whether a particular experimental treatment has caused a significant change in a rhythmic signal. When these signals display nonstationary behaviour, as is common in many biological systems, the established methodologies may be misleading. Therefore, there is a real need for new methodology that enables the formal comparison of nonstationary processes. As circadian behaviour is best understood in the spectral domain, here we develop novel hypothesis testing procedures in the (wavelet) spectral domain, embedding replicate information when available. The data are modelled as realisations of locally stationary wavelet processes, allowing us to define and rigorously estimate their evolutionary wavelet spectra. Motivated by three complementary applications in circadian biology, our new methodology allows the identification of three specific types of spectral difference. We demonstrate the advantages of our methodology over alternative approaches, by means of a comprehensive simulation study and real data applications, using both published and newly generated circadian datasets. In contrast to the current standard methodologies, our method successfully identifies differences within the motivating circadian datasets, and facilitates wider ranging analyses of rhythmic biological data in general.

Galatia Cleanthous, Athanasios G. Georgiadis, Gerard Kerkyacharian, Pencho Petrushev, Dominique Picard.

Source: Bernoulli, Volume 26, Number 3, 1832--1862.

Abstract:
We consider the problem of estimating the density of observations taking values in classical or nonclassical spaces such as manifolds and more general metric spaces. Our setting is quite general but also sufficiently rich in allowing the development of smooth functional calculus with well localized spectral kernels, Besov regularity spaces, and wavelet type systems. Kernel and both linear and nonlinear wavelet density estimators are introduced and studied. Convergence rates for these estimators are established and discussed.

Pasha Tkachov.

Source: Bernoulli, Volume 26, Number 2, 1354--1380.

Abstract:
The aim of this paper is to prove stability of traveling waves for integro-differential equations connected with branching Markov processes. In other words, the limiting law of the left-most particle of a (time-continuous) branching Markov process with a Lévy non-branching part is demonstrated. The key idea is to approximate the branching Markov process by a branching random walk and apply the result of Aïdékon [ Ann. Probab. 41 (2013) 1362–1426] on the limiting law of the latter one.

A rare bloom of microscopic organisms capable of making their own blue light has transformed several of the state’s beaches

Tucked away in southeastern Washington is an agricultural area with a unique topography. Known as the Palouse, this area is primarily noted for growing grains. This grain elevator located in Steptoe is one of the more popular subjects to photograph.

Here’s what we should be expecting in the war on Covid-19.

The OM Madagascar team mobilises the Malagasy church for prayer through radio programmes and SMS messages.

AN ENERGY-HARNESSING wave machine is set to begin sea trials later this year.

Lou Grant

The heads of Deutsche Bank and Siemens, two of Germany’s biggest companies, are among a dwindling number of high-profile delegates still scheduled to attend an investment conference in Saudi Arabia following the disappearance of dissident journalist Jamal Khashoggi.

A multi-disciplinary collaborative relationship, developed between Penn State EMS Energy Institute researchers and a Pittsburgh-based start-up company, may hold the answer to reducing global greenhouse gas (GHG) emissions while also paving the way to disrupt the chemical and material industries.

An OMer in Central Asia, working with women trapped in prostitution, explains a disturbing trend in the industry that she had never before considered.

According to a study by Broadcast Audience Research Council India and Nielsen India, there has been a 44% increase in time spent on social media in the week of March 28 - April 3 over a sample pre-covid period in January and February.

On Saturday, January 4, 10:30 a.m., President Robert Clark of Wesley College will speak at the Delaware Public Archives on the role of Submarine Operations during World War II.

The post War Beneath the Waves: U.S. Submarine Operations in World War II appeared first on Delaware Public Archives - State of Delaware.

Austin Canoe and Kayak is in the business of adventure -- and they're using UGC to tell their brand story

As title,

How to dump waveform, fsdb in SimVision? 
(Simulation Analysis Environment  SimVision(64) 18.09-s001)
Please help.

Thanks.

RF Enthusiasts, Come connect with Cadence RF experts and discover the latest advances in Cadence RF technologies, including Spectre RF at the IEEE International Microwave Symposium (IMS) 2014. This year, IMS will be held in Tampa, Florida. Cadence...(read more)

Hello,

Would anyone know how to setup a PSS or QPSS simulation with 25% dutycycle clock sources or if such a thing is possible with QPSS.

Fig1 (below) is a snapshot of the circuit I am trying to characterize. This has 4 clock ports each with 25%duty cycle in the ON state. Fig2 below shows two of these clocks.

Each path in the circuit consists of two switches with a low pass RC sandwiched in between. The Input is a 50Ohm port sine wave and the output is a 1K resistor. The output nets of all paths are connected together.

I am trying to determine the swept frequency response from input to output (voltage) when the input is from 500Mhz to  510MHz. The Period (T=1/Fp) of each of the pulses is such that Fp=500MHz. The first pulse source has a delay=0, second has delay=T/4, third delay=2T/4, etc...

I am currently getting it working and seeing the correct result (bandpass response) with Transient but the problem is doing a dft at 500MHz with 10KHz spacings needs at least 100us and takes up a lot of time and disk space.

Many Thanks,
Chris.

Fig1

Fig2

Hi all,

         I want to know how to run a regressive test in cadence and merge all ncsim .trn file of each test case into a single file to view all waveform in simvision. I am using Makefile to invoke the test case.

         eg:-

               test0:

                     irun -uvm -sv -access +rwc $(RTL) $(INTER) $(PKG) $(TOP) $(probe) +UVM_VERBOSITY=UVM_MEDIUM +UVM_TESTNAME=test0

             test1:

                   irun -uvm -sv -access +rwc $(RTL) $(INTER) $(PKG) $(TOP) $(probe) +UVM_VERBOSITY=UVM_MEDIUM +UVM_TESTNAME=test1

          I just to call test0 followed by test1 or parallel both test and view the waveform for both tests case.

        I new to this tool and help me with it

 hi,

i am doing a project on synchronous fifo design using verilog. below written is my coding. after simulation the waveform is showing error regarding its not giving value of rdata_valid and is showing a red line in waveform and due to it address is also not being taken.i have attached the waveform also. the logic for write logic is also not accepting the address(no change occurs while changing value of read_ptr). i have attached my file with it so plz refer to it.

plz help me out in this. your guidance and solns will help me in completing my project work.

thank you

lov sareen

Oce Colorwave 500 printer suffers from authentication bypass, cross site request forgery, and cross site scripting vulnerabilities.

News related to the worldwide marine hydrokinetics industry from November-December 2014

News related to the marine hydrokinetics industry in North America for December 2014

According to a press release from Aquamarine Power, the marine hydrokinetic (MHK) Wave Power Offtake Device (WavePOD) 10th-scale prototype, a project run jointly by Aquamarine Power, Bosch Rexroth and Carnegie Wave Energy, has received US$3.1 million in new funding. 

Lignum Vitae North America LLC will donate bearings to any of the 20 teams advancing to the next phase in the Wave Energy Prize Challenge sponsored by the U.S. Department of Energy’s Water Power Program.  

Marine hydrokinetics (MHK) company BioPower Systems (BPS) reports it deployed its 250 kW bioWAVE pilot demonstration unit, Dec. 16, in the Southern Ocean off the southeastern coast of Australia near Port Fairy, Victoria.
 

Carnegie Wave Energy Ltd., in a press release on Nov. 1, announced it intends to change its name to Carnegie Clean Energy Ltd. (CCE).
 

U.S. Sens. Ron Wyden, D-Ore., Jeff Merkley, D-Ore., Lisa Murkowski, R-Alaska, and Patty Murray, D-Wash., today announced funding will be awarded to build the United States’ first open-ocean, power grid-connected wave energy test facility at a site off the Oregon coast, according to a U.S. Senate press release.
 

From Italy to Kansas, health authorities are increasingly warning that the question isn’t whether a second wave of infections and deaths will hit, but when and how badly.

Germany’s strict limitations on contact between people haven't conquered the virus - they have merely bought the country more time. Epidemiologists believe a second wave will come.