Many physicians are aware that the medical services they provide are typically exempt from sales tax. However, the physician may still be required to pay sales or use tax in his or her medical practice. The liability depends on the… Read More

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As part of the CARES Act, the Centers for Medicare & Medicaid Services (CMS) is authorizing accelerated and advance payments to any Medicare physicians, provider or supplier who submits a request to the appropriate Medicare Administrative Contractor (MAC) and meets… Read More

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During the webinar, titled ‘Physical Literacy: For Nation’s Development’, the panelists discussed a lot of topics related to physical literacy, including its meaning, the challenges it faces, its need of promotion, the lax attitude towards it and its importance in everybody’s life. The panel also discussed the lax attitude towards physical education in India.

The competition between the three service academies does not come down this matchup often and Navy will be looking for revenge as they lost to Army last season, 21-17.

Chris answers some audience questions about Lightroom: How to backup and restore Lightroom and how to select and export thousands of photos over multiple folders. Chris also just made an observation about how his HomeKit cameras could breathe new life into his favorite photo exercise. Photo by Siarhei Horbach [sc:podlovebutton] Links: SPONSOR: Vistaprint: Get 500 … Continue reading "869 Home Automation and Photography"

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Don Komarechka is back on the show. This time he tells us about macro photography and about his latest book. The Kickstarter for it is almost finished. [sc:podlovebutton] Links: Kickstarter: Macro Photography: The Universe at our Feet by Don Komarechka Podcast: Photo Geek Weekly Homepage: Don Komarechka Photography SPONSOR: HoneyBook. Get 50% off with code … Continue reading "871 Frozen-UV-Macro-Stereo-Photography"

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Chris has spent months and years to get a grip on this: photography stresses us out. Let’s explore what we can do about it. Also Roger has a dying camera battery and wants to know if there’s anything he could have done about that. Photo by Chris Marquardt [sc:podlovebutton] Links: Tweet: What stresses you out … Continue reading "876 Photography Means Stress"

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Chris looks at wind speeds, slow drones, a mini assignment AND you’ll learn that telephoto compression isn’t really a thing. This week’s assignment is Aperture. Post your photos online and use the hashtags #tfttf #assignment #aperture Download the MP3 for this episode Receive TFTTF updates via email

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Chris discusses the Joy of Photography. Can we define it? What makes you pick up your camera? And Matt has brought us a new Slack Challenge… so we’ll review the last one and kick off the challenge for the year. For picture taking time, this week’s assignment is Break (as in “break the rules”). Post … Continue reading "886 The Joy of Photography"

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A new exhibit is on display at Williams’ historic train depot; and the eye-catching photographs were all taken by Arizona youth.  https://www.nps.gov/grca/learn/news/2009-12-18_photos.htm

Resource managers have long mapped biophysical forest data. Often lacking, however, is relevant social science data for understanding the variety of human needs a given landscape fulfills.

(This is an excerpt from the introduction to the companion exercise book for the 9th edition of Complete Digital Photography. It can be downloaded free from the CDP 9 support page on the website.)  Throughout your life you have probably been told to practice one thing or another—musical instruments, sports, handwriting, whatever. If you’re like me, you […]

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In a world where photographs are everywhere, displayed largely via web pages and small screens, the traditional career tracks for professional photographers have fallen by the wayside. So what do you have to do to make photography your livelihood in today’s world? I recently moderated a lively discussion on this topic with two professional photographers […]

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Forest managers are seeking practical guidance on how to adapt their current practices and, if necessary, their management goals, in response to climate change. Science-management collaboration was initiated on national forests in eastern Washington where resource managers showed a keen interest in science-based options for adapting to climate change at a 2-day workshop. Scientists and managers reviewed current climate change science and identified resources vulnerable to expected climate change. Vulnerabilities related to vegetation and habitat management included potential reductions in forest biodiversity and low forest resilience to changing disturbance regimes. The vulnerabilities related to aquatic and infrastructure resources included changing water quality and quantity, the risk to roads and other facilities from changes to hydrologic regimes, and the potential loss of at-risk aquatic species and habitats. Managers then worked in facilitated groups to identify adaptations that could be implemented through management and planning to reduce the vulnerability of key resources to climate change. The identified adaptations were grouped under two major headings: Increasing Ecological Resiliency to Climate Change, and Increasing Social and Economic Resiliency to Climate Change. The information generated from the science-management collaborative represents an initial and important step in identifying and prioritizing tangible steps to address climate change in forest management. Next would be the development of detailed implementation strategies that address the identified management adaptations..

The past decade has seen resurgence in interest in gathering wild plants and fungi in cities. In addition to gathering by individuals, dozens of groups have emerged in U.S., Canadian, and European cities to facilitate access to nontimber forest products (NTFPs), particularly fruits and nuts, in public and private spaces. Recent efforts within cities to encourage public orchards and food forests, and to incorporate more fruit and nut trees into street tree planting programs indicate a growing recognition among planners that gathering is an important urban activity.

First Forest Service researcher to receive honor.

An NHL NETWORK documentary on the 50th anniversary of the BOSTON BRUINS' 1970 STANLEY CUP championship is narrated by DROPKICK MURPHYS founder KEN CASEY. "THE 1970 BRUINS: BIG, BAD … more

Embargoed until 8 a.m. CT/9 a.m. ET, Tuesday, March 17, 2020   DALLAS, Tuesday, March 17, 2020 – As the global impact of COVID-19 rises, the scientific community continues to evaluate the clinical impact and health care needs of patients with...

Was modern physics born in the Inferno? Motion video for an Boston Globe Ideas section about the influence of Dante's Inferno in Galileo Physics

Everyone pictured in this 12-person photo gallery has a mental illness. They live in this community. A daughter. An uncle. A sister. A friend. A neighbor. A co-worker. They are us. Photography by Lauren M. Whaley/CHCF Center for Health Reporting.

PHYLLIS WASSAM KELSO
Iowa City

Phyllis Wassam Kelso, lifelong resident of Iowa City, died peacefully May 2, 2020, at her residence in Coralville at the age of 102. Honoring her wishes, cremation rites have been accorded and burial will be at Memory Gardens Cemetery at a later date. In lieu of flowers, memorials may be directed to Alzheimer's Association or Iowa City Hospice.
Phyllis was born Nov. 13, 1917, in Iowa City, and was raised by Clarence W. and Minnie M. (Abell) Wassam. She graduated from high school in Iowa City, where she later earned her B.A. from the University of Iowa in 1939. Phyllis married the love of her life, Hugh Kelso, on Aug. 3, 1940, in Iowa City. The couple spent 56 memorable years together in Iowa City, where they raised their daughter, Chris, and son, Bill. Hugh died on Sept. 21, 1996.
Besides being active in her children's lives as a stay-at-home mom, Phyllis was an active volunteer in the community for many years. She was a member of the First United Methodist Church, Phi Beta Kappa, Delta Delta Delta and Mortar Board. She also was a United Way board member and volunteered at the University of Iowa Hospitals and Clinics and Mercy Hospital.
She is survived by her daughter, Chris Reynolds of Coralville; and her son, BIll (Gail) Kelso of Baton Rouge, La. She also is survived by her grandchildren, Tyler Reynolds (Sheila Buccola), Amanda Reynolds, Camden (Kelly) Kelso and Gretchen Kelso (Drew Taylor); and one great-grandson, Noah.
Phyllis was preceded in death by her parents, her husband, and her son-in-law, Terry Reynolds.
Her family would like to extend their appreciation to Kay Smith, who provided the best love and care to Phyllis for almost 20 years and was with her when she passed away.
Online condolences may be directed to www.lensingfuneral.com.

I like the philosophy behind shooting with primes; that a photographer shouldn’t stand still but instead, continuously move closer, further, lower, or higher relative to his/her subject as a means of establishing a deeper connection. ????????
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Save 50% on my custom Lightroom presets with HOLIDAY50. Link in profile. (at Toronto, Ontario)

This trip solidified my conviction to learning photography. A lot has happened since this shot was taken.
Can you pinpoint the moment you decided to pursue photography? (at Toronto, Ontario)

Like most paddlers I have a tendency to shoot pictures in a horizontal (landscape) format. It is more tricky to shoot in a vertical format from my tippy kayaks, especially, when I have to use a paddle to stabilize my camera.

PLAN is a referral network program of 250 volunteer physicians, community clinics, hospitals and other affiliated health care providers who...continue reading

Refresh Seattle – February 2014 First off, what is Refresh? According to their website… Refresh Seattle is a community of designers and developers working to refresh the creative, technical, and professional culture of New Media endeavors in the Seattle/Puget Sound area. Promoting design, technology, usability, and standards, Refresh Seattle is a part of Refresh and […]

You enjoy photographing in the field, whether its landscapes or events.  When it comes to viewing your captured images, polishing them up and showing to people, you need a laptop to make this possible, especially when you are far from home or office.  But you are not a techie and Cores make your head spin! How do you decide on Continue Reading

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Live your passion. That’s what you’d like to do, right? Spend your days doing what you enjoy? Unfortunately, you gotta eat and do adulting things like paying bills. For that, you need money and your passion might not be good enough. Or is it? There are many ways to turn your passion for photography into an income stream. None of Continue Reading

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Its hard to imagine a time without photography. With access to small but powerful cameras that will fit in your pocket a normal occurrence in the world today, not being able to capture a moment seems like such an alien concept. There are over 95 million photos and videos shared on Instagram every single day but not too long ago Continue Reading

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Image from Wikimedia With photography and image-based social media flourishing, there’s no better time to get into this amazing hobby. Although many people do just fine with little or no guidance, there are certain common mistakes which a lot of rookies run into. To give you a better start in the world of photography, you need to keep a keen eye out for these slip-ups. Here are three of the most widespread. If you want to pursue photography as a career, then one of the worst things you can do is neglect to learn the jargon. I’ve met more than a few photographers who have a natural talent. Without playing with any settings or even glancing at the subject, they get shots which make even the blandest scenes look incredible. With some of these protégés, I’ve been totally shocked at how little technical knowledge they have. A good photographer is ... Read more

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You can do everything today. There are certainly no limits to what the mind can achieve, and that includes floating. With simply manipulating layers using Photoshop, a floating image has never been...

It is in every case critical to pay special mind to any computerized photography insights and tips. A few people can truly take awesome photos without truly trying, yet most of us need whatever...

Cinematic Street Photography by Victor Cambet

Artwork may be mountains, hills, water bodies such as rivers, lakes, ponds and the sea, living elements of land cover including indigenous vegetation, human elements [...]

The post “Landscapes & Waterscapes” Photography Competition appeared first on Photocompete.

Prizes: Grand Prize Winner will receive $500 USD Cash 1st Place Winner will receive $300 USD Cash 2nd Place Winner will receive $200 USD Cash 3rd [...]

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Prizes: One overall winner receives the grand prize of $1000 and title of World Nature Photographer of the Year. Categories: Animals in their habitat Animal [...]

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The Biodiversity Photography Contest has as main objective to promote the theme of biological natural heritage, namely the natural regions, the ecosystems, the habitats and [...]

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Photography Life has just contributed to the selection of online courses that you can take for free. While their premim courses are normally paid $150 per course, you can now access them free of charge. The founders have released them on YouTube, available for everyone to watch. The Photography Life team came to the decision […]

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The characterization of phase dynamics in coupled oscillators offers insights into fundamental phenomena in complex systems. To describe the collective dynamics in the oscillatory system, order parameters are often used but are insufficient for identifying more specific behaviors. We therefore propose a topological approach that constructs quantitative features describing the phase evolution of oscillators. Here, the phase data are mapped into a high-dimensional space at each time point, and topological features describing the shape of the data are subsequently extracted from the mapped points. We extend these features to time-variant topological features by considering the evolution time, which serves as an additional dimension in the topological-feature space. The resulting time-variant features provide crucial insights into the time evolution of phase dynamics. We combine these features with the machine learning kernel method to characterize the multicluster synchronized dynamics at a very early stage of the evolution. Furthermore, we demonstrate the usefulness of our method for qualitatively explaining chimera states, which are states of stably coexisting coherent and incoherent groups in systems of identical phase oscillators. The experimental results show that our method is generally better than those using order parameters, especially if only data on the early-stage dynamics are available.

Predicting the spatial configuration of gas molecules in nanopores of shale formations is crucial for fluid flow forecasting and hydrocarbon reserves estimation. The key challenge in these tight formations is that the majority of the pore sizes are less than 50 nm. At this scale, the fluid properties are affected by nanoconfinement effects due to the increased fluid-solid interactions. For instance, gas adsorption to the pore walls could account for up to 85% of the total hydrocarbon volume in a tight reservoir. Although there are analytical solutions that describe this phenomenon for simple geometries, they are not suitable for describing realistic pores, where surface roughness and geometric anisotropy play important roles. To describe these, molecular dynamics (MD) simulations are used since they consider fluid-solid and fluid-fluid interactions at the molecular level. However, MD simulations are computationally expensive, and are not able to simulate scales larger than a few connected nanopores. We present a method for building and training physics-based deep learning surrogate models to carry out fast and accurate predictions of molecular configurations of gas inside nanopores. Since training deep learning models requires extensive databases that are computationally expensive to create, we employ active learning (AL). AL reduces the overhead of creating comprehensive sets of high-fidelity data by determining where the model uncertainty is greatest, and running simulations on the fly to minimize it. The proposed workflow enables nanoconfinement effects to be rigorously considered at the mesoscale where complex connected sets of nanopores control key applications such as hydrocarbon recovery and CO2 sequestration.

The connection between visual input and tactile sensing is critical for object manipulation tasks such as grasping and pushing. In this work, we introduce the challenging task of estimating a set of tactile physical properties from visual information. We aim to build a model that learns the complex mapping between visual information and tactile physical properties. We construct a first of its kind image-tactile dataset with over 400 multiview image sequences and the corresponding tactile properties. A total of fifteen tactile physical properties across categories including friction, compliance, adhesion, texture, and thermal conductance are measured and then estimated by our models. We develop a cross-modal framework comprised of an adversarial objective and a novel visuo-tactile joint classification loss. Additionally, we develop a neural architecture search framework capable of selecting optimal combinations of viewing angles for estimating a given physical property.

We present a simple introduction to the decision tree algorithm using some examples from nuclear physics. We show how to improve the accuracy of the classical liquid drop nuclear mass model by performing Feature Engineering with a decision tree. Finally, we apply the method to the Duflo-Zuker model showing that, despite their simplicity, decision trees are capable of improving the description of nuclear masses using a limited number of free parameters.

We live and cooperate in networks. However, links in networks only allow for pairwise interactions, thus making the framework suitable for dyadic games, but not for games that are played in groups of more than two players. To remedy this, we introduce higher-order interactions, where a link can connect more than two individuals, and study their evolutionary dynamics. We first consider a public goods game on a uniform hypergraph, showing that it corresponds to the replicator dynamics in the well-mixed limit, and providing an exact theoretical foundation to study cooperation in networked groups. We also extend the analysis to heterogeneous hypergraphs that describe interactions of groups of different sizes and characterize the evolution of cooperation in such cases. Finally, we apply our new formulation to study the nature of group dynamics in real systems, showing how to extract the actual dependence of the synergy factor on the size of a group from real-world collaboration data in science and technology. Our work is a first step towards the implementation of new actions to boost cooperation in social groups.

Restless multi-armed bandits are a class of discrete-time stochastic control problems which involve sequential decision making with a finite set of actions (set of arms). This paper studies a class of constrained restless multi-armed bandits (CRMAB). The constraints are in the form of time varying set of actions (set of available arms). This variation can be either stochastic or semi-deterministic. Given a set of arms, a fixed number of them can be chosen to be played in each decision interval. The play of each arm yields a state dependent reward. The current states of arms are partially observable through binary feedback signals from arms that are played. The current availability of arms is fully observable. The objective is to maximize long term cumulative reward. The uncertainty about future availability of arms along with partial state information makes this objective challenging. Applications for CRMAB abound in the domain of cyber-physical systems. This optimization problem is analyzed using Whittle's index policy. To this end, a constrained restless single-armed bandit is studied. It is shown to admit a threshold-type optimal policy, and is also indexable. An algorithm to compute Whittle's index is presented. Further, upper bounds on the value function are derived in order to estimate the degree of sub-optimality of various solutions. The simulation study compares the performance of Whittle's index, modified Whittle's index and myopic policies.

Similarity measure, also called information measure, is a concept used to distinguish different objects. It has been studied from different contexts by employing mathematical, psychological, and fuzzy approaches. Image steganography is the art of hiding secret data into an image in such a way that it cannot be detected by an intruder. In image steganography, hiding secret data in the plain or non-edge regions of the image is significant due to the high similarity and redundancy of the pixels in their neighborhood. However, the similarity measure of the neighboring pixels, i.e., their proximity in color space, is perceptual rather than mathematical. This paper proposes an interval type 2 fuzzy logic system (IT2 FLS) to determine the similarity between the neighboring pixels by involving an instinctive human perception through a rule-based approach. The pixels of the image having high similarity values, calculated using the proposed IT2 FLS similarity measure, are selected for embedding via the least significant bit (LSB) method. We term the proposed procedure of steganography as IT2 FLS LSB method. Moreover, we have developed two more methods, namely, type 1 fuzzy logic system based least significant bits (T1FLS LSB) and Euclidean distance based similarity measures for least significant bit (SM LSB) steganographic methods. Experimental simulations were conducted for a collection of images and quality index metrics, such as PSNR, UQI, and SSIM are used. All the three steganographic methods are applied on datasets and the quality metrics are calculated. The obtained stego images and results are shown and thoroughly compared to determine the efficacy of the IT2 FLS LSB method. Finally, we have done a comparative analysis of the proposed approach with the existing well-known steganographic methods to show the effectiveness of our proposed steganographic method.

Several nonlinear model reduction techniques are compared for the three cases of the non-parallel version of the Kuramoto-Sivashinsky equation, the transient regime of flow past a cylinder at $Re=100$ and fully developed flow past a cylinder at the same Reynolds number. The linear terms of the governing equations are reduced by Galerkin projection onto a POD basis of the flow state, while the reduced nonlinear convection terms are obtained either by a Galerkin projection onto the same state basis, by a Galerkin projection onto a POD basis representing the nonlinearities or by applying the Discrete Empirical Interpolation Method (DEIM) to a POD basis of the nonlinearities. The quality of the reduced order models is assessed as to their stability, accuracy and robustness, and appropriate quantitative measures are introduced and compared. In particular, the properties of the reduced linear terms are compared to those of the full-scale terms, and the structure of the nonlinear quadratic terms is analyzed as to the conservation of kinetic energy. It is shown that all three reduction techniques provide excellent and similar results for the cases of the Kuramoto-Sivashinsky equation and the limit-cycle cylinder flow. For the case of the transient regime of flow past a cylinder, only the pure Galerkin techniques are successful, while the DEIM technique produces reduced-order models that diverge in finite time.

Neural networks have opened up many new opportunities to utilize remotely sensed images in meteorology. Common applications include image classification, e.g., to determine whether an image contains a tropical cyclone, and image translation, e.g., to emulate radar imagery for satellites that only have passive channels. However, there are yet many open questions regarding the use of neural networks in meteorology, such as best practices for evaluation, tuning and interpretation. This article highlights several strategies and practical considerations for neural network development that have not yet received much attention in the meteorological community, such as the concept of effective receptive fields, underutilized meteorological performance measures, and methods for NN interpretation, such as synthetic experiments and layer-wise relevance propagation. We also consider the process of neural network interpretation as a whole, recognizing it as an iterative scientist-driven discovery process, and breaking it down into individual steps that researchers can take. Finally, while most work on neural network interpretation in meteorology has so far focused on networks for image classification tasks, we expand the focus to also include networks for image translation.

A “Wearable Electromyography-Based Controller” includes a plurality of Electromyography (EMG) sensors and provides a wired or wireless human-computer interface (HCI) for interacting with computing systems and attached devices via electrical signals generated by specific movement of the user's muscles. Following initial automated self-calibration and positional localization processes, measurement and interpretation of muscle generated electrical signals is accomplished by sampling signals from the EMG sensors of the Wearable Electromyography-Based Controller. In operation, the Wearable Electromyography-Based Controller is donned by the user and placed into a coarsely approximate position on the surface of the user's skin. Automated cues or instructions are then provided to the user for fine-tuning placement of the Wearable Electromyography-Based Controller. Examples of Wearable Electromyography-Based Controllers include articles of manufacture, such as an armband, wristwatch, or article of clothing having a plurality of integrated EMG-based sensor nodes and associated electronics.