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This article discusses a study on the use of paper to create three dimensional (3D) models of tumors and damaged hearts in the laboratory. Conducted by chemist George Whitesides and his colleagues at Harvard University in Cambridge, Massachusetts, the study used a gel containing cells squirted onto small sheets of sterile chromatography paper. The study found that such models could demonstrate how tumors and damaged hearts respond to drugs.

The article explores and unpacks the significance of the Statement from the Heart, signed at Uluru in 2017, emphasizing its role as a justice and heart-healing tool. Topics discussed include the statement's focus on justice, personal healing, constitutional sovereignty, and dispelling misconceptions, such as its association with reconciliation, nation-building, and the notion of "the oldest living culture."

We study distributed optimization to minimize a sum of smooth and strongly-convex functions. Recent work on this problem uses gradient tracking to achieve linear convergence to the exact global minimizer. However, a connection among different approaches has been unclear. In this paper, we first show that many of the existing first-order algorithms are related with a simple state transformation, at the heart of which lies a recently introduced algorithm known as  $\mathcal {AB}$. We then present distributed heavy-ball, denoted as  $\mathcal {AB}m$ , that combines  $\mathcal {AB}$ with a momentum term and uses nonidentical local step-sizes. By simultaneously implementing both row- and column-stochastic weights,  $\mathcal {AB}m$ removes the conservatism in the related work due to doubly stochastic weights or eigenvector estimation.  $\mathcal {AB}m$ thus naturally leads to optimization and average consensus over both undirected and directed graphs. We show that  $\mathcal {AB}m$ has a global $R$ -linear rate when the largest step-size and momentum parameter are positive and sufficiently small. We numerically show that  $\mathcal {AB}m$ achieves acceleration, particularly when the objective functions are ill-conditioned. [ABSTRACT FROM AUTHOR]

The article offers several tips to stay active throughout day by challenging brain and heart. Topics discussed include reading a book on a new subject, listen to new types of music, or learning a new language; Playing cards or a board game with friends, or play word games on an app or with pen and paper, and writing a poem for a friend, type a story for grandkids, drawing a picture and coloring it in, or painting with watercolors.

Paul the Apostle encouraged early believers to live well by building healthy habits: Maybe you'll meet with friends who encourage you in your faith. This practice required intention, so when no one needed diaper changes or sippy-cup refills, I cuddled up on the couch and read a few verses, a paragraph, a chapter. Smile file When the store displays of lined paper, composition notebooks, and neon highlighters have all been ransacked, you'll know it's back-to-school season. [Extracted from the article]

Ultralow-power electronics for cardiac monitoring make possible the development of new light-weight and low-cost devices that are ideal for long-term medical measurements and home-based tele-monitoring services. Nowadays, these devices are seen as a critical technology for reducing health-care costs. In this paper, we present several methods for reducing power consumption while retaining the precision necessary for cardiac monitoring. In particular, we describe a micropower electrocardiograph, an ultralow-power pulse oximeter, an ultralow-power phonocardiograph, an integrated-circuit switched-capacitor model of the heart, and an ultracompact and efficient lithium-ion battery charger. These components are, to our knowledge, currently the most power-efficient or minimal-size designs present in the literature in each respective category. [ABSTRACT FROM PUBLISHER]

Purpose |!|#8211; The purpose of this paper is to introduce the RWTH|!|#39;s total artificial heart, ReinHeart, focusing on the design of the unique drive system. Design/methodology/approach |!|#8211; The force characteristics of the drive have been simulated in a finite element (FE) approach. Additionally the coppler losses within the motor coils have been predicted based on the FE-simulation. Both results are compared to laboratory measurements of a prototype to validate the design. Findings |!|#8211; The presented results show a good correlation between simulation and measurement and proof the applicability of the new design drive system. Research limitations/implications |!|#8211; The used hydraulic models of the cardiovasular system used as a load for the device are not fully validated with data from living organisms. Therefore, further in vivo trials are needed. Originality/value |!|#8211; The high force density of the drive allows its integration into a fully implantable, total artificial heart, in order to significantly improve durability. This hopefully will extend the indication for artificial hearts as alternatives to transplantation. [ABSTRACT FROM AUTHOR]

• A model is established to discuss the relationship between attitude and behavior in a well-mixed and infinite population. • The population is divided into four types, and five status of the system are found in equilibrium. • An introduced benefit pe which is sufficiently large can emerge cooperation. • The relative firmness of the most in society may ensure cooperation. The attitude, silent or speaking, and the behavior, cooperation or betrayal, are two interrelated and mutually influential attributes of individuals. In the context of environmental dilemma, four strategies are determined depending on two factors mentioned. In this paper, a new analytic framework is built to take care of those four types of groups - silent cooperator, speaking cooperator, silent defector and speaking defector, and we catch sight of that the system has five situations in equilibrium: (i) only silent defectors left; (ii) two types of defector are living together; (iii) all four types of individual exist; (iv) two types of cooperator remained; (v) all are silent cooperators. We introduced an additional benefit to measure the approval for the silent partner from the public. Enough benefits can encourage cooperation, but it beyond a certain level there is no further function. Besides, when the possibility of being influenced is smaller than that of spontaneous actions, it means that the vast majority of individuals in society have the firm heart, the public recognition of silent cooperators may ensure cooperation. Conversely, the same conclusion cannot be reached. Individuals are influenced more easily, as the lash of the information times, cooperation may survive the dilemma by meeting two conditions that the approval for silent cooperators and the relative firmness of the most in our society. Therefore, individuals with the firm heart are conducive to the emergence and maintenance of cooperation in environmental dilemmas under the guidance of correct values. [ABSTRACT FROM AUTHOR]