Miracle-dz/UniFAR-FTUs huggingface dataset:
Exploring redundancy in sensor deployment to maximize network lifetime and coverage

Energy efficiency and fault tolerance are two important features required for sustained and reliable operations of wireless sensor networks deployed in unstructured environments. This paper investigates an approach to prolonging network lifetime and ensuring sensing reliability by organizing the sensors into several disjoint subsets, each of which takes shift to cover the entire region. This strategy is made possible by the enormous redundancy in large-scale sensor network applications where many small and inexpensive sensors are deployed to achieve quality through quantity. However, such energy savings through shift taking in time and fault tolerance via redundant coverage require an appropriate network partition in space: each on-duty subset must (i) cover the entire region, (ii) maintain its own connectivity, and (iii) cover every point with multiple sensors. Based on a general sensor network model, we formulate this problem as an NP-complete Connected M-SET k-Coverage problem. We rigorously derive a necessary and sufficient condition for checking the sensor coverage of a continuous two-dimensional space based on geometric reasoning, and analytically derive the upper bounds on both M and k for any given sensor network. We further propose a heuristic approach to this problem and evaluate its performance through extensive simulations.
Mechanical thrombectomy-assisted thrombolysis for acute symptomatic portal and superior mesenteric venous thrombosis

Acute portal vein and mesenteric vein thrombosis (PVMVT) can cause acute mesenteric ischemia and be fatal with mortality rate of 37%-76%. Therefore, early diagnosis and prompt venous revascularization are warranted in patients with acute symptomatic PVMVT. Due to advances in catheter-directed treatment, endovascular treatment has been used for revascularization of affected vessels in PVMVT. We report two cases of symptomatic PVMVT treated successfully by transhepatic percutaneous mechanical thrombectomy-assisted thrombolysis.
Impact of Rosuvastatin Treatment on HDL-Induced PKC-βII and eNOS Phosphorylation in Endothelial Cells and Its Relation to Flow-Mediated Dilatation in Patients with Chronic Heart Failure

Background. Endothelial function is impaired in chronic heart failure (CHF). Statins upregulate endothelial NO synthase (eNOS) and improve endothelial function. Recent studies demonstrated that HDL stimulates NO production due to eNOS phosphorylation at Ser1177, dephosphorylation at Thr495, and diminished phosphorylation of PKC-βII at Ser660. The aim of this study was to elucidate the impact of rosuvastatin on HDL mediated eNOS and PKC-βII phosphorylation and its relation to endothelial function. Methods. 18 CHF patients were randomized to 12 weeks of rosuvastatin or placebo. At baseline, 12 weeks, and 4 weeks after treatment cessation we determined lipid levels and isolated HDL. Human aortic endothelial cells (HAEC) were incubated with isolated HDL and phosphorylation of eNOS and PKC-βII was evaluated. Flow-mediated dilatation (FMD) was measured at the radial artery. Results. Rosuvastatin improved FMD significantly. This effect was blunted after treatment cessation. LDL plasma levels were reduced after rosuvastatin treatment whereas drug withdrawal resulted in significant increase. HDL levels remained unaffected. Incubation of HAEC with HDL had no impact on phosphorylation of eNOS or PKC-βII. Conclusion. HDL mediated eNOS and PKC-βII phosphorylation levels in endothelial cells do not change with rosuvastatin in CHF patients and do not mediate the marked improvement in endothelial function.
Diversity of Active States in TMT Opsins

Opn3/TMT opsins belong to one of the opsin groups with vertebrate visual and non-visual opsins, and are widely distributed in eyes, brains and other internal organs in various vertebrates and invertebrates. Vertebrate Opn3/TMT opsins are further classified into four groups on the basis of their amino acid identities. However, there is limited information about molecular properties of these groups, due to the difficulty in preparing the recombinant proteins. Here, we successfully expressed recombinant proteins of TMT1 and TMT2 opsins of medaka fish (Oryzias latipes) in cultured cells and characterized their molecular properties. Spectroscopic and biochemical studies demonstrated that TMT1 and TMT2 opsins functioned as blue light-sensitive Gi/Go-coupled receptors, but exhibited spectral properties and photo-convertibility of the active state different from each other. TMT1 opsin forms a visible light-absorbing active state containing all-trans-retinal, which can be photo-converted to 7-cis- and 9-cis-retinal states in addition to the original 11-cis-retinal state. In contrast, the active state of TMT2 opsin is a UV light-absorbing state having all-trans-retinal and does not photo-convert to any other state, including the original 11-cis-retinal state. Thus, TMT opsins are diversified so as to form a different type of active state, which may be responsible for their different functions.
Anchoring properties of photoaligned azo-dye materials.

The photoinduced alignment of a liquid crystal (LC) on films of azo dyes was studied for the liquid crystal display applications. In order to improve the alignment stability of the photoaligned dye (SD-1), the azo-dye derivative with polymerizable terminal groups was synthesized (SDA-1). The films of SDA-1 exhibit good photoalignment properties and ultraviolet stability after thermal polymerization. We investigated the anchoring coefficient for polar and azimuthal energy for both azo-dyes SD-1 and SDA-1 using a differential method developed by us. The polar and azimuthal anchoring strengths of azo-dye aligning materials are comparable with those of usual polyimide aligning materials. The electro-optic response of a 90 degrees twisted LC cell remains almost the same after heating up to 200 degrees C, i.e., the anchoring energy remains considerably high.
David Yost + ICSC : : observing everything interactions : a personal journey

OF PROJECT David Yost + ICSC Observing Everything Interactions: A Personal Journey This project is about taking a personal journey to photograph thoughtless acts (human behaviors) or observations of how and why people use products and services in their natural settings. This project contains photographs and personal narrative interpretations of each photo provided by the author. The observations and personalized interpretations of them are intended to get people to inform, inspire, become more curious, aware, and observant of how we as a society design products and services and solve problems efficiently and effectively. These observations and interpretations are also intended to illustrate patterns that point to more a universal need. The final product developed is a draft photo book. _________________________________ Date
Control of postoperative pain. Nonnarcotic and narcotic alternatives and their effect on pulmonary function.

narcotics, have been utilized in the postoperative period in an attempt to provide adequate analgesia. Patients undergoing intrathoracic or intraabdominal procedures or both have been treated with intercostal block therapy, transcutaneous electrical nerve stiinulation, or cryotherapy. Spinal narcotics and patientcontrolled narcotic analgesia have also been used to treat postoperative pain. Each ofthese techniques will be reviewed with special emphasis on their analgesic efficacy and their role in modifying postoperative pulmonary function.
A Qualitative Investigation of Adolescents’ Perceived Mechanisms of Change from a Universal School-Based Depression Prevention Program

A recent meta-analysis provides evidence supporting the universal application of school-based prevention programs for adolescent depression. The mechanisms underlying such successful interventions, however, are largely unknown. We report on a qualitative analysis of 109 Grade 9 students’ beliefs about what they gained from an evidence-based depression prevention intervention, the Resourceful Adolescent Program (RAP-A). Fifty-four percent of interviewees articulated at least one specific example of program benefit. A thematic analysis of responses revealed two major themes, improved interpersonal relationships and improved self-regulation, both stronger than originally assumed. A more minor theme also emerged—more helpful cognitions. It is postulated that both improved interpersonal relationships and improved self-regulation are likely to enhance one another, and more helpful cognitions may express its contribution through enhanced self-regulation. These findings broaden our understanding of the impact of depression prevention programs, beginning to illuminate how such programs benefit participants.
Towards an Autonomous Walking Robot for Planetary Surfaces

In this paper, recent progress in the development of the DLR Crawler - a six-legged, actively compliant walking robot prototype - is presented. The robot implements a walking layer with a simple tripod and a more complex biologically inspired gait. Using a variety of proprioceptive sensors, different reflexes for reactively crossing obstacles within the walking height are realised. On top of the walking layer, a navigation layer provides the ability to autonomously navigate to a predefined goal point in unknown rough terrain using a stereo camera. A model of the environment is created, the terrain traversability is estimated and an optimal path is planned. The difficulty of the path can be influenced by behavioral parameters. Motion commands are sent to the walking layer and the gait pattern is switched according to the estimated terrain difficulty. The interaction between walking layer and navigation layer was tested in different experimental setups.
A Measure for Evaluating Retrieval Techniques based on Partially Ordered Ground Truth Lists

For the RISM A/II collection of musical incipit (short extracts of scores, taken from the beginning), we have established a ground truth based on the opinions of human experts. It contains correctly ranked matches for a set of given queries. These ranked lists contain groups of documents whose ranks were not significantly different. In other words, they are only partially ordered. To make use of the available information for measuring the quality of retrieval results, we introduce the "average dynamic recall" (ADR) that averages the recall among a dynamic set of relevant documents, taking into account the fact that the ground truth reliably orders groups of matches, but not always individual matches. Dynamic recall measures how many of the documents that should have appeared before or at a given position in the result list actually have appeared. ADR at a given position averages this measure up to the given position. Our measure was first used at the MIREX 2005 Symbolic Melodic Similarity contest
A pr 2 00 2 The Central Starburst and Ionization Mechanism in the LINER / H II Region Transition Nucleus in NGC

We present a comprehensive study to determine if the LINER/H II region transition spectrum in NGC 4569 can be generated solely by photoionization by the nuclear starburst. A review of the multiwavelength data from the literature reveals no additional sources that contribute to the ionization. We find that the young starburst dominating the UV emission is distinct from the nuclear population of A supergiants identified in the optical spectrum by Keel (1996). Spectral synthesis analysis provides constraints on the physical nature of the starburst, revealing a 5-6 Myr, approximately instantaneous starburst with subsolar metallicity. These results are used to model the spectral energy distribution of the ionizing continuum. Luminosity constraints place limits on the steepness of the extinction curve for the young starburst. The Savage & Mathis (1979) curve satisfies all luminosity constraints and the derived reddening is similar to the emission line reddening. These results imply extreme conditions in the nuclear starburst, with ∼5x10 4 O and B stars compacted in the inner 9 ′′ x 13 ′′ region of the nucleus. Using photoionization analysis and employing all observational constraints on the emission line gas, we find very specific conditions are required if the spectrum is generated solely by stellar photoionization. At least two spatially distinct components are required-a compact region with strong O III emission and an extended, low density component emitting most of the S II flux. A high density component is also needed to generate the O I flux. Additionally, a limited contribution from Wolf-Rayet stars to the ionizing SED is necessary, consistent with the results of Barth & Shields (2000). We present a physical interpretation for the multi-component emission line gas.
Optimal Control Predicts Human Performance on Objects with Internal Degrees of Freedom

On a daily basis, humans interact with a vast range of objects and tools. A class of tasks, which can pose a serious challenge to our motor skills, are those that involve manipulating objects with internal degrees of freedom, such as when folding laundry or using a lasso. Here, we use the framework of optimal feedback control to make predictions of how humans should interact with such objects. We confirm the predictions experimentally in a two-dimensional object manipulation task, in which subjects learned to control six different objects with complex dynamics. We show that the non-intuitive behavior observed when controlling objects with internal degrees of freedom can be accounted for by a simple cost function representing a trade-off between effort and accuracy. In addition to using a simple linear, point-mass optimal control model, we also used an optimal control model, which considers the non-linear dynamics of the human arm. We find that the more realistic optimal control model captures aspects of the data that cannot be accounted for by the linear model or other previous theories of motor control. The results suggest that our everyday interactions with objects can be understood by optimality principles and advocate the use of more realistic optimal control models for the study of human motor neuroscience.
Browsing inside a Music Track, the Experimentation Case Study

During the European project Semantic HIFI, a new HIFI system with innovative features was implemented. Among these features is an innovative GUI for browsing inside the music structure. This particular feature was tested during a set of user sessions. The very positive feedback did not conceal several lacks pointed out by the users. For example, users pointed out difficulties to understand the GUI and requested new advanced features. The corresponding specification updates will lead toward a powerful semantic tool for structural browsing including both advanced intra and inter audio structure browsing, as well as P2P meta-data exchange possibilities.
On the Outage Performance of Full-Duplex Selective Decode-and-Forward Relaying

We evaluate the outage performance in a three-terminal full-duplex relay channel that adopts a selective decode-and-forward protocol, taking relay self-interference into account. Previous work focused on coverage extension scenarios where direct source-destination transmissions are neglected or considered as interference. In this work, we account for the relay self-interference, and exploit the cooperative diversity offered by the independently fading source/relay message replicas that arrive at the destination. We present an approximate, yet accurate, closed-form expression for the end-to-end outage probability that captures their joint effect. With the derived expression in hand, we propose a relay transmit power optimization scheme that only requires the relay knowledge of channel statistics. Finally, we corroborate our analysis with simulations.
Effectiveness of Defense Methods Against DDoS Attacks by Anonymous

Anonymous started in 2010 as a group of hackers attacking anti-piracy organizations. Later on, they also attacked large companies that derogated freedom of information, by boycotting the website Wikileaks. In those events, the group managed to take down the website of some big organizations, like MasterCard and Visa, using a tool called LOIC. In this paper, the different types of attacks executed by Anonymous using LOIC are listed and some of the available defense methods to mitigate the effects of these attacks are evaluated on their effectiveness. This was tested by executing a prepared attack on different defense methods in a controlled environment. The main contribution of this paper is finding out how effective each of the defenses are and which one should be used to protect a website against LOIC attacks.
Combining opportunistic routing and network coding: A multi rate approach

The inherent characteristics of the wireless channel, such as broadcast communication and high variability in channel quality, make it difficult to achieve high throughput in wireless mesh networks (WMNs). However, some innovative techniques like wireless inter-flow network coding and opportunistic routing leverage the broadcast nature of the wireless channel to improve the throughput. In addition, in order to cope with channel quality variation, the transmission rate can be adjusted using a rate adaptation algorithm. In this paper, we study how these fundamental techniques collaborate and how they can be combined into an integrated solution. We suggest Multi Rate Opportunistic Routing-aware Network Coding (MRORNC) as an integrated cross-layer approach that jointly determines the coded packet, potential next hops, and transmission rate using a novel metric. The simulation results demonstrate that the suggested approach can achieve higher throughput compared to the rate-oblivious opportunistic routing-aware network coding solutions.
Towards Practical Oblivious RAM

We take an important step forward in making Oblivious RAM (O-RAM) practical. We propose an O-RAM construction achieving an amortized overhead of 20X-35X (for an O-RAM roughly 1 terabyte in size), about 63 times faster than the best existing scheme. On the theoretic front, we propose a fundamentally novel technique for constructing Oblivious RAMs: specifically, we partition a bigger O-RAM into smaller O-RAMs, and employ a background eviction technique to obliviously evict blocks from the client-side cache into a randomly assigned server-side partition. This novel technique is the key to achieving the gains in practical performance.
Diaquabis[5-(pyrazin-2-yl)-3-(pyridin-4-yl)-1H-1,2,4-triazol-1-ido-κN 1]zinc

The title mononuclear complex, [Zn(C11H7N6)2(H2O)2], is composed of one ZnII ion, two deprotonated ppt ligands [Hppt = 5-(pyrazin-2-yl)-3-(pyridin-4-yl)-1H-1,2,4-triazole] and two coordinating water molecules. The asymmetric unit consists of one half-molecule that is completed by application of a centre of symmetry. The ZnII atom is six-coordinated in an octahedral environment, surrounded by two O atoms in the axial positions and four N atoms in the equatorial plane. Adjacent mononuclear units are further linked via O—H⋯N hydrogen-bonding interactions, forming a two-dimensional network along (100).
Microencapsulation of zidovudine by double emulsion solvent diffusion technique using ethylcellulose

Zidovudine-ethylcellulose microspheres were prepared by water-in-oil-in-oil double emulsion solvent diffusion method. Spherical free flowing microspheres having an entrapment efficiency of 32-54% were obtained. The effect of polymer-drug ratio, surfactant concentration for secondary emulsification process, volume of processing medium and stirring speed of secondary emulsification process was evaluated with respect to entrapment efficiency and in vitro drug release behaviors. Infrared spectroscopy and differential scanning calorimetric analysis confirmed the absence of any drug polymer interaction. The in vitro release profile could be altered significantly by changing various processing and formulation parameters to give a controlled release of drug from the microspheres. The in vitro release profiles from microspheres of different polymer-drug ratios were applied on various kinetic models. The best fit with the highest correlation coefficient was observed in higuchi model, indicating diffusion-controlled principle. The n value varies between 0.23-0.54 obtained from korsemeyer-peppas model confirmed that the mechanism of drug release was diffusion controlled.
Energy-aware online routing with QoS constraints in multi-rate wireless ad hoc networks

Wireless ad hoc networks consist of hundreds to thousands of mobile nodes that are powered by batteries. To prolong the network operational time, energy conservation in such networks is of paramount importance. Energy optimization thus is one major objective in the design of routing protocols. However, in some stringent real-time applications including target tracking and bushfire surveillance, latency is an important concern, and little attention has been paid to it in the design of routing protocols for such applications to meet the specified Quality of Service (QoS) requirements like the end-to-end latency constraint. In this paper we focus on online energy-aware routing protocol design for routing requests to meet various end-to-end latency constraints under the multi-rate environment, we aim to maximize the network lifetime through striking the right balance among the node's transmission rate, the end-to-end latency, and energy consumption. Specifically, due to the NP-hardness of the problem of concern, we propose a joint optimization framework consisting of finding a routing path and assigning a specific transmission rate at each node in the path for each request such that the total energy consumption is minimized. We also devise novel heuristic algorithms for the problem, based on different energy cost metrics. We finally conduct extensive experiments by simulations to evaluate the performance of the proposed algorithms in terms of network lifetime. The experimental results show that the proposed algorithm incorporating the energy utilization ratio of the residual energy of a node to its initial energy capacity into the cost metric outperforms the others significantly.