2020 marks the 30th anniversary of President George H.W. Bush signing the Americans with Disabilities Act (ADA) into law. Throughout this 30th anniversary year, the Division is publishing a monthly series of blog posts highlighting the impact that our recent ADA enforcement efforts have made in people’s everyday lives. We celebrate the many ways in which the ADA has transformed American society and enabled a generation of Americans with disabilities to thrive. At the same time, we recognize that too many barriers to equal opportunity remain. We recommit to our work of making the promise of the ADA a reality, enabling all Americans with disabilities to achieve their dreams and reach their full potential.

Seth Flaxman et al. have an updated version of their model of coronavirus progression. Flaxman writes: Countries with successful control strategies (for example, Greece) never got above small numbers thanks to early, drastic action. Or put another way: if we did China and showed % of population infected (or death rate), we’d erroneously conclude that […]

https://www.nps.gov/grca/learn/news/national-park-service-announces-availability-of-environmental-assessment-for-train-operations-in-grand-canyon-national-park.htm

Grand Canyon National Park Superintendent Steve Martin has announced that an environmental assessment for the construction of a new Science and Resource Management Facility in the park is now available for public review and comment. https://www.nps.gov/grca/learn/news/news_2009-11-19_sandrm.htm

Grand Canyon National Park Superintendent Steve Martin has announced that a revised environmental assessment (EA) for the construction of a new Science and Resource Management Facility in the park is now available for public review and comment. https://www.nps.gov/grca/learn/news/national-park-service-announces-availability-of-revised-environmental-assessment-for-new-science-and-resource-management-facility-in-grand-canyon-national-park.htm

https://www.nps.gov/grca/learn/news/2010-03-01_rehab.htm

https://www.nps.gov/grca/learn/news/national-park-service-announces-availability-of-environmental-assessment-for-mule-operations-and-stock-use-in-grand-canyon-national-park.htm

Grand Canyon National Park staff recently hosted a focus group on accessibility and universal design in wayside exhibits. https://www.nps.gov/grca/learn/news/2010-11-29_focus_group.htm

The National Park Service Comprehensive Fisheries Management Plan Environmental Assessment (EA) for waters between Glen Canyon Dam and Lake Mead within Grand Canyon National Park (Grand Canyon) and Glen Canyon National Recreation Area (Glen Canyon) is available for public review and comment. Comments will be accepted from May 9 through June 10, 2013. https://www.nps.gov/grca/learn/news/national-park-service-announces-availability-of-comprehensive-fish-management-plan-environmental-assessment.htm

Using revenue generated by recreation fees Grand Canyon National Park has reopened the South Rim and Desert View entrance stations to provide information and safety messages to visitors.  https://www.nps.gov/grca/learn/news/park-accessibility-possible-with-rec-fee-dollars-and-az-state-support.htm

Due to water turbidity and maintenance issues, some of the water filling stations and flush toilets normally available along the North Kaibab and Bright Angel Trails at this time of the year will not be open until water conditions change and/or water line repairs are made. https://www.nps.gov/grca/learn/news/backcountry-users-advised-of-changes-to-water-availability-on-north-kaibab-and-bright-angel-trails.htm

Land use and climate change are two key factors with the potential to affect stream conditions and fish habitat. Since the 1950s, Washington and Oregon have required forest practices designed to mitigate the effects of timber harvest on streams and fish.

Changes in forest management have detrimentally affected the economic health of small communities in the Blue Mountain region of Oregon over the past few decades. A build-up of small trees threatens the ecological health of these forests and increases wildland fire hazard. Hoping to boost their economies and also restore these forests, local leaders are interested in the economic value of timber that might be available from thinning treatments on these lands.

Millions of miles of highway crisscross the United States. Highways fragment the landscape, affecting the distribution of animal populations and limiting the ability of individuals to disperse between those populations. Moreover, animal-vehicle collisions are a serious hazard to wildlife, not to mention people.

Greenhouse pot studies were conducted to quantify the competitive abilities of three native perennial grass species to inhibit development of Scotch broom (Cytisus scoparius (L.) Link ) seedlings: spike bentgrass (Agrostis exarata Trin. ), blue wildrye (Elymus glaucus Buckley), and western fescue (Festuca occidentalis Hook. ). In single-species stands (1) soil water content decreased with increasing grass density, (2) soil water depletion per plant differed among species as ratios of 2.4:1.3:1 for bentgrass, fescue, and wildrye, respectively, and (3) average percentage of ground cover per plant was ranked by species as bentgrass (14 percent), wildrye (8 percent), broom (8 percent), and fescue (5 percent). Regression models predicted 90, 85, and 72 percent reductions in average biomass per plant of broom when grown with approximately 250 plants/m2 of bentgrass, wildrye, and fescue, respectively. Bentgrass and wildrye were more competitive than fescue because of their early-season depletion of soil water and rapid development of cover.

The United States, in partnership with 11 other countries, participates in the Montreal Process. Each country assesses national progress toward the sustainable management of forest resources by using a set of criteria and indicators agreed on by all member countries. Several indicators focus on nontimber forest products (NTFPs). In the United States, permit and contract data from the U.S. Forest Service and the Bureau of Land Management, in addition to several other data sources, were used as a benchmark to assess harvest, value, employment, exports and imports, per capita consumption, and subsistence uses for many NTFPs. The retail value of commercial harvests of NTFPs from U.S. forest lands is estimated at $1.4 billion annually. Nontimber forest products in the United States are important to many people throughout the country for personal, cultural, and commercial uses, providing food security, beauty, connection to culture and tradition, and income.

The effects of climate change are expected to be more severe for some segments of society than others because of geographic location, the degree of association with climate-sensitive environments, and unique cultural, economic, or political characteristics of particular landscapes and human populations. Social vulnerability and equity in the context of climate change are important because some populations may have less capacity to prepare for, respond to, and recover from climate-related hazards and effects. Such populations may be disproportionately affected by climate change. This synthesis of literature illustrates information about the socioeconomic, political, health, and cultural effects of climate change on socially vulnerable populations in the United States, with some additional examples in Canada. Through this synthesis, social vulnerability, equity, and climate justice are defined and described, and key issues, themes, and considerations that pertain to the effects of climate change on socially vulnerable populations are identified. The synthesis reviews what available science says about social vulnerability and climate change, and documents the emergence of issues not currently addressed in academic literature. In so doing, the synthesis identifies knowledge gaps and questions for future research.

Existing models and predictions project serious changes to worldwide hydrologic processes as a result of global climate change. Projections indicate that significant change may threaten National Forest System watersheds that are an important source of water used to support people, economies, and ecosystems. Wildland managers are expected to anticipate and respond to these threats, adjusting management priorities and actions. Because watersheds differ greatly in: (1) the values they support, (2) their exposure to climatic changes, and (3) their sensitivity to climatic changes, understanding these differences will help inform the setting of priorities and selection of management approaches. Drawing distinctions in climate change vulnerability among watersheds on a national forest or grassland allows more efficient and effective allocation of resources and better land and watershed stewardship. Eleven national forests from throughout the United States, representing each of the nine Forest Service regions, conducted assessments of potential hydrologic change resulting from ongoing and expected climate warming. A pilot assessment approach was developed and implemented. Each national forest identified water resources important in that area, assessed climate change exposure and watershed sensitivity, and evaluated the relative vulnerabilities of watersheds to climate change. The assessments provided management recommendations to anticipate and respond to projected climate-hydrologic changes. Completed assessments differed in level of detail, but all assessments identified priority areas and management actions to maintain or improve watershed resilience in response to a changing climate. The pilot efforts also identified key principles important to conducting future vulnerability assessments.

The North Cascadia Adaptation Partnership (NCAP) is a science-management partnership consisting of the U.S. Department of Agriculture Forest Service Mount Baker-Snoqualmie and Okanogan-Wenatchee National Forests and Pacific Northwest Research Station; North Cascades National Park Complex; Mount Rainier National Park; and University of Washington Climate Impacts Group.

We developed a process to address terrestrial wildlife species for which management for ecosystem diversity may be inadequate for providing ecological conditions capable of sustaining viable populations. The process includes (1) identifying species of conservation concern, (2) describing source habitats, and other important ecological factors, (3) organizing species into groups, (4) selecting surrogate species for each group, (5) developing surrogate species assessment models; (6) applying surrogate species assessment models to evaluate current and historical conditions, (7) developing conservation considerations, and (8) designing monitoring and adaptive management. Following the application of our species screening criteria, we identified 209 of 700 species as species of concern on National Forest System lands east of the Cascade Range in Washington state. We aggregated the 209 species of conservation concern into 10 families and 28 groups based primarily on their habitat associations (these are not phylogenetic families). We selected 32 primary surrogate species (78 percent birds, 17 percent mammals, 5 percent amphibians) for application in northeastern Washington, based on risk factors and ecological characteristics. Our assessment documented reductions in habitat capability across the assessment area compared to historical conditions. We combined management considerations for individual species with other surrogate species to address multiple species. This information may be used to inform land management planning efforts currently underway on the Okanogan-Wenatchee and Colville National Forests in northeastern Washington.

Understanding the capacity to reduce wildfire risk and restore dry forests on Western national forests is a key part of prioritizing new accelerated restoration programs initiated by the Forest Service.

Over the past decade, wood-energy use in Alaska has grown dramatically.

The Blue Mountains Adaptation Partnership was developed to identify climate change issues relevant to resource management in the Blue Mountains region, to find solutions that can minimize negative effects of climate change, and to facilitate transition of diverse ecosystems to a warmer climate.

This assessment evaluates the effects of future climate change on a select set of ecological systems and ecosystem services in Alaska’s Kenai Peninsula and Chugach National Forest regions. The focus of the assessment was established during a multi-agency/organization workshop that established the goal to conduct a rigorous evaluation of a limited range of topics rather than produce a broad overview.

For many marketers, emails are the lifeline for most marketing efforts. Every SPAM complaint, unsubscribe, or bounce has an impact on the current ROI as well as on the sender’s reputation which affects the ROI of the future campaigns. Yet the sender reputation, that you accumulate over the period of multiple email campaigns, is only...

Are you sure everyone on the web can easily access your website? ‘Cause if it is not accessible to everyone, you are losing some great business opportunities! This article is going to put some shades on this “web accessibility” term. Also, you will get to know why it holds so much importance in today’s digital...

Another day, another devastating new uptick in Iowa’s COVID-19 figures.

Several times in the past few weeks, Gov. Kim Reynolds has announced a new daily high in Iowa’s positive COVID-19 tests or deaths. On Tuesday, yet another striking record — 19 deaths in a 24-hour period, or nearly 10 percent of the state’s total COVID-19 deaths to date.

For a governor who says she is staking her pandemic response on data and metrics, those grim numbers don’t seem to weigh heavily on Reynolds’ decision-making.

“The fact is we can’t prevent people from getting the COVID-19 virus,” Reynolds said at her Tuesday news conference. “If we weren’t testing in these areas, people would still have the virus and without being tested, diagnosed and isolated it could spread even further.”

In one breath, Reynolds tells Iowans we are helpless to stop the virus’s spread. In the very next breath, she explains how testing and isolation can help prevent the spread.

It’s just one example of the confusing guidance Iowans are getting from the governor and her team. Iowans looking for answers about how to protect themselves and their families are finding seemingly conflicting answers.

They report we have reached the peak, only to backtrack. They say we’re in this together and there’s a statewide plan to confront the outbreak, but then they tell us it’s really about “personal responsibility.” They tell us to stay home as much as possible, then pivot to emphasizing the need for people who feel sick to stay home.

Sometimes, it almost feels as if Reynolds is blaming Iowans for getting sick.

Early on, Reynolds used a regional strategy to track the virus, based on factors such as hospitalizations and health care resources in six multicounty regions across the state. That approach has been brushed aside with little explanation to the public.

Instead, Iowa now has “open” and “closed” counties — 22 where significant restrictions remain intact, and 77 where businesses can open in a limited manner. After less than a week under the county-by-county strategy, there are early signs that the 77 counties are seeing an uptick in confirmed COVID-19 cases.

• Gov. Reynolds is disrupting her own virus response plan

Reynolds’ response in this phase of the pandemic is just as crucial as the initial phase, to prevent a deadlier wave. Shifting to the personal responsibility path also decentralizes leadership, which creates more uncertainty.

If Iowa’s “open” counties see a surge, will Reynolds relent and reimpose restrictions?

We have reason to doubt it. Just this week, Reynolds co-authored a Washington Post guest column with other governors, arguing “our approach worked.”

In Reynolds’ mind, she has already defeated the virus, so she’s retreating from the fight. That’s bad news for Iowans who are still very much on the front lines of this pandemic.

(319) 398-8262; editorial@thegazette.com

Many people think the word “disability” means people who require a wheelchair or walker. In reality, however, there is much more to disability than meets the eye. 

Patients with disabilities must receive the same level of lifesaving medical treatment from hospitals during the coronavirus pandemic as able-bodied patients, the Trump administration said.

The internet has given many web companies the chance to rise and meet new audiences. The challenge for these companies is the competition to grow the customer base and build the companies’ credibility. One of the ways to do that is to use social proof as a marketing tool. Many people make decisions regarding a […]

Stephen Hawking, a world-renowned scientist who recently passed away, had a brilliant mind that was trapped inside a paralyzed body, and I could not stop thinking about how the opposite is often the case with traumatic brain injury.

By Jessica Corbett Common Dreams “We face a stark choice [between] radical, disruptive changes to our physical world or radical, disruptive changes to our political and economic systems to avoid those outcomes.” As people across the globe mobilize to demand … Continue reading →

By Jessica Corbett Common Dreams “We face a stark choice [between] radical, disruptive changes to our physical world or radical, disruptive changes to our political and economic systems to avoid those outcomes.” As people across the globe mobilize to demand … Continue reading →

By Jessica Corbett Common Dreams “We face a stark choice [between] radical, disruptive changes to our physical world or radical, disruptive changes to our political and economic systems to avoid those outcomes.” As people across the globe mobilize to demand … Continue reading →

Usability tests are unique. We ask people to do real tasks with the system and watch. As the person completes the task, we watch their behaviour and listen to their stream-of-consciousness narrative. But what makes a good usability task scenario?

Receiving service-related disability compensation does not interfere with the funds veterans receive from the GI Bill, explains Adam.

By David Suzuki with contributions from Senior Editor Ian Hanington David Suzuki Foundation By 2002, drivers in London, England, were spending as much as half their commuting time stalled in traffic, contributing to much of the city centre’s dangerous particulate … Continue reading →

It has been a month since we launched our first online workshop and, to be honest, we really didn’t know whether people would enjoy them — or if we would enjoy running them. It was an experiment, but one we are so glad we jumped into! I spoke about the experience of taking my workshop online on a recent episode of the Smashing podcast. As a speaker, I had expected it to feel very much like I was presenting into the empty air, with no immediate feedback and expressions to work from.

The web is awash with words. They’re everywhere. On websites, in emails, advertisements, tweets, pop-ups, you name it. More people are publishing more copy than at any point in history. That means a lot of information, and a lot of competition. In recent years a slew of ‘readability’ programs have appeared to help us tidy up the things we write. (Grammarly, Readable, and Yoast are just a handful that come to mind.

In this note, we unify and extend various concepts in the area of $G$-complete reducibility, where $G$ is a reductive algebraic group. By results of Serre and Bate--Martin--R"{o}hrle, the usual notion of $G$-complete reducibility can be re-framed as a property of an action of a group on the spherical building of the identity component of $G$. We show that other variations of this notion, such as relative complete reducibility and $sigma$-complete reducibility, can also be viewed as special cases of this building-theoretic definition, and hence a number of results from these areas are special cases of more general properties.

This paper addresses the problem of identifying the graph structure of a dynamical network using measured input/output data. This problem is known as topology identification and has received considerable attention in recent literature. Most existing literature focuses on topology identification for networks with node dynamics modeled by single integrators or single-input single-output (SISO) systems. The goal of the current paper is to identify the topology of a more general class of heterogeneous networks, in which the dynamics of the nodes are modeled by general (possibly distinct) linear systems. Our two main contributions are the following. First, we establish conditions for topological identifiability, i.e., conditions under which the network topology can be uniquely reconstructed from measured data. We also specialize our results to homogeneous networks of SISO systems and we will see that such networks have quite particular identifiability properties. Secondly, we develop a topology identification method that reconstructs the network topology from input/output data. The solution of a generalized Sylvester equation will play an important role in our identification scheme.

We study the regularity of exceptional actions of groups by $C^{1,alpha}$ diffeomorphisms on the circle, i.e. ones which admit exceptional minimal sets, and whose elements have first derivatives that are continuous with concave modulus of continuity $alpha$. Let $G$ be a finitely generated group admitting a $C^{1,alpha}$ action $ ho$ with a free orbit on the circle, and such that the logarithms of derivatives of group elements are uniformly bounded at some point of the circle. We prove that if $G$ has spherical growth bounded by $c n^{d-1}$ and if the function $1/alpha^d$ is integrable near zero, then under some mild technical assumptions on $alpha$, there is a sequence of exceptional $C^{1,alpha}$ actions of $G$ which converge to $ ho$ in the $C^1$ topology. As a consequence for a single diffeomorphism, we obtain that if the function $1/alpha$ is integrable near zero, then there exists a $C^{1,alpha}$ exceptional diffeomorphism of the circle. This corollary accounts for all previously known moduli of continuity for derivatives of exceptional diffeomorphisms. We also obtain a partial converse to our main result. For finitely generated free abelian groups, the existence of an exceptional action, together with some natural hypotheses on the derivatives of group elements, puts integrability restrictions on the modulus $alpha$. These results are related to a long-standing question of D. McDuff concerning the length spectrum of exceptional $C^1$ diffeomorphisms of the circle.

This paper is devoted to the study of the singularity phenomenon of timelike extremal hypersurfaces in Minkowski spacetime $mathbb{R}^{1+3}$. We find that there are two explicit lightlike self-similar solutions to a graph representation of timelike extremal hypersurfaces in Minkowski spacetime $mathbb{R}^{1+3}$, the geometry of them are two spheres. The linear mode unstable of those lightlike self-similar solutions for the radially symmetric membranes equation is given. After that, we show those self-similar solutions of the radially symmetric membranes equation are nonlinearly stable inside a strictly proper subset of the backward lightcone. This means that the dynamical behavior of those two spheres is as attractors. Meanwhile, we overcome the double roots case (the theorem of Poincar'{e} can't be used) in solving the difference equation by construction of a Newton's polygon when we carry out the analysis of spectrum for the linear operator.

In this paper, we are concerned with the numerical solution of one type integro-differential equation by a probability method based on the fundamental martingale of mixed Gaussian processes. As an application, we will try to simulate the estimation of ruin probability with an unknown parameter driven not by the classical L'evy process but by the mixed fractional Brownian motion.

We study a problem concerning parabolic induction in certain p-adic unitary groups. More precisely, for $E/F$ a quadratic extension of p-adic fields the associated unitary group $G=mathrm{U}(n,n)$ contains a parabolic subgroup $P$ with Levi component $L$ isomorphic to $mathrm{GL}_n(E)$. Let $pi$ be an irreducible supercuspidal representation of $L$ of depth zero. We use Hecke algebra methods to determine when the parabolically induced representation $iota_P^G pi$ is reducible.

Let $H$ be a Krull monoid with finite class group $G$ such that every class contains a prime divisor. We consider the system $mathcal L (H)$ of all sets of lengths of $H$ and study when $mathcal L (H)$ contains or is contained in a system $mathcal L (H')$ of a Krull monoid $H'$ with finite class group $G'$, prime divisors in all classes and Davenport constant $mathsf D (G')=mathsf D (G)$. Among others, we show that if $G$ is either cyclic of order $m ge 7$ or an elementary $2$-group of rank $m-1 ge 6$, and $G'$ is any group which is non-isomorphic to $G$ but with Davenport constant $mathsf D (G')=mathsf D (G)$, then the systems $mathcal L (H)$ and $mathcal L (H')$ are incomparable.