The Food and Drug Administration (FDA) published a proposed rule change on December 6, 2021, to amend the agricultural water requirements of the Produce Safety Rule. In response to the proposed change, the Delaware Department of Agriculture and University of Delaware Cooperative Extension will host two outreach sessions on January 21, 2022, to engage farmers and other stakeholders.

A Florida appellate court has upheld AG Kathy Jennings’ authority to continue advocating for funding for Nemours Children’s Hospital. “The consequences of this case could be a game changer for kids in Delaware,” said AG Jennings. “Anyone whose child has received care at Nemours Hospital understands how exceptional they are. That’s the hallmark of A.I. […]

DEPARTMENT OF AGRICULTURE: Office of the Secretary

DEPARTMENT OF STATE: Office of the Alcoholic Beverage Control Commissioner

DEPARTMENT OF STATE: Office of the Alcoholic Beverage Control Commissioner

DEPARTMENT OF STATE: Office of the Alcoholic Beverage Control Commissioner

DEPARTMENT OF STATE: Office of the Alcoholic Beverage Control Commissioner

DEPARTMENT OF SAFETY AND HOMELAND SECURITY: Office of the Marijuana Commissioner

A remarkable result in probability theory is the "three-sigma rule," which is a generic name for theorems that bound the probability that a univariate random variable will appear near the center of its distribution. This article discusses the familiar three-sigma rule for the normal distribution, a less-familiar rule for unimodal [...]

The post The three-sigma rule appeared first on The DO Loop.

The post details a highly restrictive environment where employees are forbidden from basic actions like looking away from their screens or using their phones.

Have you ever wanted to write a DRC rule deck to check for space or width constraints on polygons? Or have you wondered how the multiple lines of an LVS rule deck extract and conduct a comparison between the schematic and layout? Maybe you've been curious about the role of rule deck writers in creating high-quality designs ready for tape-out.

If any of these questions interest you, there is good news: the latest version (v23.1) of the Physical Verification Rules Writer (PVLRW) course is designed to teach you rule deck writing. This free 16-hour online course includes audio and labs designed to make your learning experience comfortable and flexible. Whether you are new to the concept or an experienced CAD/PDK engineer, the course is structured to enhance your rule deck writing skills.

The PVLRW course covers six core modules: Layer Processing, DRC Rules, Layout Extraction, ERC and LVS Rules, Schematic Netlisting, and Coloring Rules. There are also three optional appendix sections. Each module explains relevant rules with syntax, concepts, graphics, examples, and case studies.

This course is based on tool versions PEGASUS231 and Virtuoso Studio IC231.

Pegasus Input and Output

Pegasus is a cloud-ready physical verification signoff solution that enables engineers to support faster delivery of advanced-node integrated circuits (ICs) to market.

Pegasus requires input data in the form of layout geometry, schematic netlists, and rules that direct the tool operation. The rules fall into two categories: those that describe the fabrication process and those that control the job-specific operation.

Pegasus provides log and report files, netlists, databases, and error databases as output.

Overview of Pegasus Rule File

The rule decks written in Physical Verification Language (PVL) work for the Cadence PV signoff tools Pegasus and PVS (Physical Verification System).   

The PVL rules are placed in a file that gets selected in a run from the GUI or the command line, as the user directs. PVL rules may be on separate lines within the file and can also be contained in named rule blocks.

Each line of code starts with a PVL rule that uses prefix type notation. It consists of a keyword followed by options, input layer or variable names, and output layer or variable names.

A rule block has the format of the keyword rule, followed by a rule name you wish to give it, followed by an opening curly brace. You enter the rules you wish to perform, followed by a closing curly brace on the last separate line.

  Sample Rule deck with individual lines of code and rule blocks.

DRC Rules

The first step in a typical Pegasus flow is a Design Rule Check (DRC), which verifies that layout geometries conform to the minimum width, spacing, and other fabrication process rules required by an IC foundry. Each foundry specifies its own process-dependent rules that must be met by the layout design.

There are three types of DRC rules: layer definition rules, layer derivation rules, and DRC design check rules. Layer definition rules identify the layers contained in the input layout database, and layer derivation rules derive additional layers from the original input layers, allowing the tool to test the design against specific foundry requirements using the design check rules.

A sample DRC Rule deck

A layout view displaying the DRC violations

LVS Rules

The Pegasus Layout Versus Schematic (LVS) tool compares the layout netlist with the schematic netlist to check for discrepancies.

There are two essential LVS rule sets: LVS extraction rules and comparison rules. LVS extraction rules help extract drawn devices and connectivity information from the input layout geometry data and outputs into a layout netlist. The LVS extraction rule set also includes the layer definition, derivation, extraction, connectivity, and net listing rules.

LVS comparison rules are associated with comparing the extracted layout netlist to a schematic netlist.

A sample LVS Rule deck. 

TCL, Macros, and Conditional commands

Tcl is supported and used in various Pegasus functionalities, such as Pegasus rule files and Pegasus configurator. Macros are functional templates that are defined once and can be used multiple times in a rule file. Conditional Commands are used to process or skip specific commands in the rule file.

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About Knowledge Booster Training Bytes

Knowledge Booster Training Bytes is an online journal that relays information about Cadence Training videos, online courses, and upcoming webinars in the Learning section of the Cadence Learning and Support portal. This blog category brings you direct links to these videos, courses, and other related material on a regular basis. Subscribe to receive email notifications about our latest Custom IC Design blog posts.

Hi

the signal SPI_SCLK belongs to TWO Spacing CLASSES: CLS_SP_SPI and CLS_SP_SPI_CLOCK

I then assign TWO different SPACING RULES to each class : CLS_SP_SPI  > 2H and CLS_SP_SPI_CLOCK > 3.5H

Which SPACING RULE will inherit the signal SPI_SCLK ??

Is it possible to manually define the PRIORITY on Design Rules ??

Hi

I have fixed a SPACING RULE (SP1) for a CLASS_DIFF_PAIR whereas for via associated to the net (DP_VIA), the DISTANCE > 60mils respect to ANY other vias (PTH, BB, TEST vias)

Now my problem is that this rules should NOT be applied for GND VIAS (STICHING VIA) which must be placed at a distance < 40mils respect to DP_VIA

How to create an exemption to the SPACING RULE (SP1)?

Check here each week to keep up with the latest from John MacArthur's pulpit at Grace Community Church.

Ouagadougou, Burkina Faso — Burkina Faso's military regime, in power since a 2022 coup, will extend its rule for five years under an accord adopted during national consultations on Saturday, the talks' chairman said.  "The duration of the transition is fixed at 60 months from July 2, 2024," Colonel Moussa Diallo, chairman of the organizing committee of the national dialogue process, said after the talks.  He added that coup leader and acting president Ibrahim Traore could run in any elections at the end of the transition period.  What was supposed to be a two-day national dialogue began earlier Saturday, ostensibly to chart a way back to civilian rule for the West African nation beset by jihadi violence.  The army has governed Burkina Faso since 2022, carrying out two coups that it said were justified in large part by the persistent insecurity.  Jihadi rebels affiliated with al Qaida and the Islamic State group have waged a grinding insurgency since 2015 that has killed thousands and displaced millions.  An initial national dialogue had resulted in a charter that installed Traore as president and put in place a government and a legislative assembly.  Under the new charter, quotas will no longer be used to assign seats in the assembly to members of traditional parties. Instead, "patriotism" will be the only criteria for selecting deputies.  "You have just rewritten a new page in the history of our country," said Minister of Territorial Affairs Emile Zerbo, who opened the meeting on Saturday morning.  The initial charter set the transition to civilian rule at 21 months, with the deadline set to expire July 1.  But Traore had repeatedly warned that holding elections would be difficult given the perilous security situation.  The new charter also calls for a new body called the "Korag" to "monitor and control the implementation of the country's strategic vision in all areas and through all means." Its composition and operations are at the discretion of the president.  Civil society representatives, the security and defense forces and lawmakers in the transitional assembly took part in the weekend talks, which most political parties boycotted.  Human rights groups have accused Burkina Faso's junta leaders of abuses against civilians during their military campaigns against jihadis, and of silencing media and opposition leaders.   After taking power, the coup leaders expelled French troops and diplomats, and have instead turned to Russia for military assistance.   

The 15 August 2021 Taliban takeover of Afghanistan devastated the lives of millions of Afghans. But the rights and freedoms of women and girls in particular have been progressively trampled by a series of edicts that have created a virtual system of gender apartheid.

A new technique uses glowing molecules, laser light and microscopes to measure distances as minuscule as 0.1 nanometres – the width of a typical atom

In the foundations of a Maya temple, researchers found the charred bones of royal individuals – possibly evidence of a fiery ritual to mark the end of one dynasty and the beginning of another

Several psychological biases undermine our ability to make new friends. Understand them and you’ll know the secrets to building meaningful relationships that last

The technologies introduced by the Romans after they conquered Britain led to the kind of economic growth seen in the industrial age

Title: Obama Administration Offers New Rules for Religious Objections to Health Care Law
Category: Health News
Created: 8/25/2014 9:35:00 AM
Last Editorial Review: 8/25/2014 12:00:00 AM

Title: 'Half a Glass' Rule May Curb Overdrinking
Category: Health News
Created: 8/27/2014 4:35:00 PM
Last Editorial Review: 8/28/2014 12:00:00 AM

Title: Many Kids Tossing Fruits, Veggies in Trash Since New U.S. School Lunch Rules
Category: Health News
Created: 8/26/2015 12:00:00 AM
Last Editorial Review: 8/26/2015 12:00:00 AM

Bacterial regulatory RNAs (sRNAs) are important players to control gene expression. In Staphylococcus aureus, SprC is an antivirulent trans-acting sRNA known to base-pair with the major autolysin atl mRNA, preventing its translation. Using MS2-affinity purification coupled with RNA sequencing, we looked for its sRNA-RNA interactome and identified 14 novel mRNA targets. In vitro biochemical investigations revealed that SprC binds two of them, czrB and deoD, and uses a single accessible region to regulate its targets, including Atl translation. Unlike Atl regulation, the characterization of the SprC-czrB interaction pinpointed a destabilization of the czrAB cotranscript, leading to a decrease of the mRNA level that impaired CzrB zinc efflux pump expression. On a physiological standpoint, we showed that SprC expression is detrimental to combat against zinc toxicity. In addition, phagocyctosis assays revealed a significant, but moderate, increase of czrB mRNA levels in a sprC-deleted mutant, indicating a functional link between SprC and czrB upon internalization in macrophages, and suggesting a role in resistance to both oxidative and zinc bursts. Altogether, our data uncover a novel pathway in which SprC is implicated, highlighting the multiple strategies used by S. aureus to balance virulence using an RNA regulator.

BACKGROUND AND PURPOSE:

There has been a distinction made in the 2001 Canadian C-Spine Rule regarding patients 65 and older and younger than 65 years of age as far as indications for cervical spine CT scanning. We sought to determine if there are differences in the symptoms, mechanisms of injury, fracture locations, and types that are still relevant in 2024.

PURPOSE

Chest pain frequently poses a diagnostic challenge for general practitioners (GPs). Utilizing risk stratification tools might help GPs to rule out acute coronary syndrome (ACS) and make appropriate referral decisions. We conducted a systematic review of studies evaluating risk stratification tools for chest pain in primary care settings, both with and without troponin assays. Our aims were to assess the performance of tools for ruling out ACS and to provide a comprehensive review of the current evidence.

"I hear journalists are wondering if I’ve put my name in for the Scottish Parliament. Big news re 2026 coming in the next hour…watch this space."

Former MP Joanna Cherry has said that the SNP rules which prevented her from standing for a seat at Holyrood would not block Stephen Flynn from doing the same.  

Chris walks in on Anna playing Tactics Ogre. Alex is head of the elemental winds. And Kelley's cat stole a banana.

The post RPG Cast – Episode 669: “The 1 of 1 Ring to Rule Them All” appeared first on RPGamer.

The software used to control a robot is normally highly adapted to its specific physical set up. But now researchers have created a single general-purpose robotic control policy that can operate robotic arms, wheeled robots, quadrupeds, and even drones.

One of the biggest challenges when it comes to applying machine learning to robotics is the paucity of data. While computer vision and natural language processing can piggyback off the vast quantities of image and text data found on the Internet, collecting robot data is costly and time-consuming.

To get around this, there have been growing efforts to pool data collected by different groups on different kinds of robots, including the Open X-Embodiment and DROID datasets. The hope is that training on diverse robotics data will lead to “positive transfer,” which refers to when skills learned from training on one task help to boost performance on another.

The problem is that robots often have very different embodiments—a term used to describe their physical layout and suite of sensors and actuators—so the data they collect can vary significantly. For instance, a robotic arm might be static, have a complex arrangement of joints and fingers, and collect video from a camera on its wrist. In contrast, a quadruped robot is regularly on the move and relies on force feedback from its legs to maneuver. The kinds of tasks and actions these machines are trained to carry out are also diverse: The arm may pick and place objects, while the quadruped needs keen navigation.

That makes training a single AI model for robots on these large collections of data challenging, says Homer Walke, a Ph.D. student at the University of California, Berkeley. So far, most attempts have either focused on data from a narrower selection of similar robots or researchers have manually tweaked data to make observations from different robots more similar. But in research to be presented at the Conference on Robot Learning (CoRL) in Munich in November, they unveiled a new model called CrossFormer that can train on data from a diverse set of robots and control them just as well as specialized control policies.

“We want to be able to train on all of this data to get the most capable robot,” says Walke. “The main advance in this paper is working out what kind of architecture works the best for accommodating all these varying inputs and outputs.”

How to control diverse robots with the same AI model

The team used the same model architecture that powers large language model, known as a transformer. In many ways, the challenge the researchers were trying to solve is not dissimilar to that facing a chatbot, says Walke. In language modeling, the AI has to to pick out similar patterns in sentences with different lengths and word orders. Robot data can also be arranged in a sequence much like a written sentence, but depending on the particular embodiment, observations and actions vary in length and order too.

“Words might appear in different locations in a sentence, but they still mean the same thing,” says Walke. “In our task, an observation image might appear in different locations in the sequence, but it’s still fundamentally an image and we still want to treat it like an image.”

UC Berkeley/Carnegie Mellon University

Most machine learning approaches work through a sequence one element at a time, but transformers can process the entire stream of data at once. This allows them to analyze the relationship between different elements and makes them better at handling sequences that are not standardized, much like the diverse data found in large robotics datasets.

Walke and his colleagues aren’t the first to train transformers on large-scale robotics data. But previous approaches have either trained solely on data from robotic arms with broadly similar embodiments or manually converted input data to a common format to make it easier to process. In contrast, CrossFormer can process images from cameras positioned above a robot, at head height or on a robotic arms wrist, as well as joint position data from both quadrupeds and robotic arms, without any tweaks.

The result is a single control policy that can operate single robotic arms, pairs of robotic arms, quadrupeds, and wheeled robots on tasks as varied as picking and placing objects, cutting sushi, and obstacle avoidance. Crucially, it matched the performance of specialized models tailored for each robot and outperformed previous approaches trained on diverse robotic data. The team even tested whether the model could control an embodiment not included in the dataset—a small quadcopter. While they simplified things by making the drone fly at a fixed altitude, CrossFormer still outperformed the previous best method.

“That was definitely pretty cool,” says Ria Doshi, an undergraduate student at Berkeley. “I think that as we scale up our policy to be able to train on even larger sets of diverse data, it’ll become easier to see this kind of zero shot transfer onto robots that have been completely unseen in the training.”

The limitations of one AI model for all robots

The team admits there’s still work to do, however. The model is too big for any of the robots’ embedded chips and instead has to be run from a server. Even then, processing times are only just fast enough to support real-time operation, and Walke admits that could break down if they scale up the model. “When you pack so much data into a model it has to be very big and that means running it for real-time control becomes difficult.”

One potential workaround would be to use an approach called distillation, says Oier Mees, a postdoctoral research at Berkley and part of the CrossFormer team. This essentially involves training a smaller model to mimic the larger model, and if successful can result in similar performance for a much smaller computational budget.

But of more importance than the computing resource problem is that the team failed to see any positive transfer in their experiments, as CrossFormer simply matched previous performance rather than exceeding it. Walke thinks progress in computer vision and natural language processing suggests that training on more data could be the key.

Others say it might not be that simple. Jeannette Bohg, a professor of robotics at Stanford University, says the ability to train on such a diverse dataset is a significant contribution. But she wonders whether part of the reason why the researchers didn’t see positive transfer is their insistence on not aligning the input data. Previous research that trained on robots with similar observation and action data has shown evidence of such cross-overs. “By getting rid of this alignment, they may have also gotten rid of this significant positive transfer that we’ve seen in other work,” Bohg says.

It’s also not clear if the approach will boost performance on tasks specific to particular embodiments or robotic applications, says Ram Ramamoorthy, a robotics professor at Edinburgh University. The work is a promising step towards helping robots capture concepts common to most robots, like “avoid this obstacle,” he says. But it may be less useful for tackling control problems specific to a particular robot, such as how to knead dough or navigate a forest, which are often the hardest to solve.

The company behind Pornhub and other popular pornographic sites broke Canadian privacy law by allowing intimate images to be shared on its websites without the direct knowledge or consent of everyone depicted, the federal privacy commissioner has ruled. The Office of the Privacy Commissioner’s (OPC) investigation into Aylo (formerly MindGeek), one of the world’s largest […]

Israel has proposed a revised system of food business licensing to ease the regulatory burden on industry and improve sanitary conditions. The Ministry of Health said the current regulation, regarding business licensing in general and food businesses in particular, is outdated and places a heavy regulatory burden on companies. This... Continue Reading

Directed by Sukumar and produced by Mythri Movie Makers, the sequel features Allu Arjun, Rashmika Mandanna, and Fahadh Faasil, and is scheduled for a grand release worldwide on December 5, 2024

Fazal, who has built a steady presence in international cinema, expressed his excitement about joining forces with Waller-Bridge in the film that explores themes of resilience and defiance set against the backdrop of Afghanistan

Cloud-based business management software (CRM, ERP) can revolutionise an SME.

A group representing hunters in the Nordic countries says it’s more optimistic than ever that the European Union will lift a longtime ban on trading seal products that deprived Canadian sealers of their primary market.

Transport Canada quietly changed air cargo importation rules for 55 mostly European countries in September, throwing the system into chaos — all in response to an alleged Russian plot to place firebombs on planes destined for North America.

Small businesses say they deliberately avoid earning too much, to stop becoming liable for the sales tax and losing money.

In an effort to strengthen the regulatory activities for medical devices in the country, the Union health ministry has framed and finalised rules regulating the method of recruitment to various posts under the Central

Agencies with healthcare clients in pharmaceuticals, healthcare services, digital health apps, or health-related connected devices such as wearables should take note that the Federal Trade Commission (FTC) final rule updating its Health Breach Notification Rule (HBNR) that took effect on July 29, 2024. The FTC considers a breach to include a covered entity’s unauthorized disclosure […]

Effective on October 21st of this year, the Federal Trade Commission (FTC) issued a new final rule that is intended to better combat ​“fake” reviews and testimonials by prohibiting the sale or purchase of “fake reviews” as well as granting the agency the opportunity to seek civil penalties against ​willful violators. The FTC made only […]

An AllTrials report for the House of Commons Science and Technology Select Committee this week has found that 33 NHS trust sponsors and six UK universities are reporting none of their clinical trial results, while others have gone from 0% to 100% following an announcement from the Select Committee in January that universities and NHS […]

A judge in New York has ruled that hundreds of clinical trials registered on ClinicalTrials.gov are breaking the law by not reporting results. The ruling came in a court case launched against the US Department of Health and Human Services by two plaintiffs, a family doctor and a professor of journalism. The case focused on […]