Understanding the resource consumption in distributed scenarios is one of the main goals of quantum information theory. A prominent example for such a scenario is the task of quantum state merging, ...where two parties aim to merge their tripartite quantum state parts. In standard quantum state merging, entanglement is considered to be an expensive resource, while local quantum operations can be performed at no additional cost. However, recent developments show that some local operations could be more expensive than others: it is reasonable to distinguish between local incoherent operations and local operations which can create coherence. This idea leads us to the task of incoherent quantum state merging, where one of the parties has free access to local incoherent operations only. In this case the resources of the process are quantified by pairs of entanglement and coherence. Here, we develop tools for studying this process and apply them to several relevant scenarios. While quantum state merging can lead to a gain of entanglement, our results imply that no merging procedure can gain entanglement and coherence at the same time. We also provide a general lower bound on the entanglement-coherence sum and show that the bound is tight for all pure states. Our results also lead to an incoherent version of Schumacher compression: in this case the compression rate is equal to the von Neumann entropy of the diagonal elements of the corresponding quantum state.
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CMK, CTK, FMFMET, IJS, NUK, PNG, UM
Abstract The triboelectric nanogenerator (TENG) is a promising technology for self‐powered sensors and vibration‐driven energy harvesting, with its development especially influenced by the ...characteristics of tribomaterials. However, developing tribopositive materials with a strong cationic effect and high electron‐donating capability remains challenging. In this study, a novel polyethylene oxide@poly(diallyldimethylammonium chloride) (PEO@Poly‐DADMAC) composite nanofiber mat (NFM) is successfully fabricated using the electrospinning technique. It functions as a highly tribopositive material, particularly enhancing the performance of nanofiber‐based TENGs (NF‐TENGs). Through investigation of its physical and triboelectric properties, the study revealed that incorporating cationic Poly‐DADMAC with PEO effectively boosts NF‐TENG output by increasing the dielectric constant (twofold), electron‐donating affinities, and surface charge trapping capability. The fabricated NF‐TENG shows excellent output performance generating 980 V, a maximum power density of 5.6 Wm −2 , and an ultrahigh sensitivity of 8.923 V kPa −1 which endows composite reliability for power supply and sensing capability. More importantly, the PEO@Poly‐DADMAC‐based self‐powered motion sensor with an NF‐TENG array is successfully demonstrated in multifunctional applications such as athlete activity tracking, and wireless gaming interface control. This study not only offers new insights into optimizing performance and selecting alternative tribomaterials but also provides valuable guidance for developing high‐output TENGs and highly sensitive self‐powered sensors.
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BFBNIB, FZAB, GIS, IJS, KILJ, NLZOH, NUK, OILJ, SAZU, SBCE, SBMB, UL, UM, UPUK
This updated review outlines the influence of muscle activity on knee joint loading, describes the deficits in muscle function observed in people with knee osteoarthritis, and summarizes available ...evidence pertaining to the role of muscle in the development and progression of knee osteoarthritis. The review also focuses on whether muscle deficits can be modified in knee osteoarthritis and whether improvements in muscle function lead to improved symptoms and joint structure. The review concludes with a discussion of exercise prescription for muscle rehabilitation in knee osteoarthritis.
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•A comprehensive and systematic overview of the recent advances and challenges in the field of MOF-based self-powered sensors.•This review outlines the classifications of different ...MOF materials and the development of MOF materials.•Discuss output enhancement based on the charge trapping mechanism and dielectric modulation.•Applications in energy harvesting and self-powered sensors are thoroughly addressed.•A summary, challenges and future issues are discussed.
The growing popularity of the Internet of Things has led to increases in the need for renewable energy and sensor systems. Therefore, triboelectric nanogenerators (TENGs) have garnered significant attention as a novel form of energy production due to their lightweight nature, cost-effectiveness, high output, and versatility in terms of materials, low cost, and device configurations. TENGs have been studied for several uses, including self-powered sensing, biomedical, biomotion, healthcare monitoring, and robotic applications. The performance of TENG is drastically pretentious by the material because charge density (σ) is an inherent characteristic of the material. Metal-organic framework (MOF) materials possess robust charge-trapping capabilities, multifunctional structures, adjustable properties, and exceptional stability. These materials can be utilized or integrated as self-powered sensors of different kinds to enhance the performance of TENG and expand their range of applications. This review paper outlines development of MOF materials in the TENG field in chronological order, classifications of different MOF materials, progress in developing MOF materials, structural analysis, physicochemical properties, advantage and disadvantages of different MOF and fundamental TENG classifications. Furthermore, the method for output enhancement based on charge trapping mechanism and dielectric modulation, specific benefits, and device applications in energy harvesting and self-powered sensors are thoroughly addressed. Finally, a discussion of future and pertinent issues in material development, energy harvesting, and the research field of self-powered sensors for TENGs is provided.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
To enhance patient-centred care of people with hip pain, we need a comprehensive understanding of peoples' beliefs about their hip pain. This systematic review explored the beliefs and expectations ...of middle-aged and older adults about chronic hip pain and its care across different healthcare settings and contexts. This review was a synthesis of qualitative studies using a framework synthesis approach. We searched 5 databases: MEDLINE, CINAHL, The Cochrane Central Register of Controlled Trials, EMBASE, and PsycINFO. Two reviewers independently screened the studies for eligibility. We included qualitative studies that included people with a mean age of older than 45 years and 80% or more of the participants had chronic hip pain, or if they reported the data about participants with chronic hip pain who were 45 years or older separately. We excluded studies of people with systemic conditions and studies not published in English. We included 28 studies involving 352 participants with chronic hip pain. We generated 5 themes: (1) biomedical causes (subtheme 1: scary pathoanatomical labels, subtheme 2: information needs); (2) negative impacts on physical, social, and mental health; (3) activity avoidance or modification and rest; (4) treatment failures (subtheme: information and support were helpful); (5) surgery is inevitable. Middle-aged and older adults labelled their hip joint damaged and attributed their hip pain to age, and wear and tear. People coped with their hip pain by avoiding or modifying activity. People were not educated about treatments or used treatments that failed to improve their hip pain. People believed that surgery for their hip was inevitable.
Telehealth could enhance rehabilitation for people with chronic health conditions. This review examined the psychometric properties of performance-based measures of physical function administered via ...telehealth among people with chronic health conditions using the Consensus-Based Standards for the Selection of Health Measurement Instruments (COSMIN) approach. This systematic review was registered with Prospero (Registration number: CRD42021262547). Four electronic databases were searched up to June 2022. Study quality was evaluated by two independent reviewers using the COSMIN risk of bias checklist. Measurement properties were rated by two independent reviewers in accordance with COSMIN guidance. Results were summarised according to the COSMIN approach and the modified GRADE approach was used to grade quality of the summarised evidence. Five articles met the eligibility criteria. These included patients with Parkinson's Disease (n = 2), stroke (n = 1), cystic fibrosis (n = 1) and chronic heart failure (n = 1). Fifteen performance-based measures of physical function administered via videoconferencing were investigated, spanning measures of functional balance (n = 7), other measures of general functional capacity (n = 4), exercise capacity (n = 2), and functional strength (n = 2). Studies were conducted in Australia (n = 4) and the United States (n = 1). Reliability was reported for twelve measures, with all twelve demonstrating sufficient inter-rater and intra-rater reliability. Criterion validity for all fifteen measures was reported, with eight demonstrating sufficient validity and the remaining seven demonstrating indeterminate validity. No studies reported data on measurement error or responsiveness. Several performance-based measures of physical function across the domains of exercise capacity, strength, balance and general functional capacity may have sufficient reliability and criterion validity when administered via telehealth. However, the evidence is of low-very low quality, reflecting the small number of studies conducted and the small sample sizes included in the studies. Future research is needed to explore the measurement error, responsiveness, interpretability and feasibility of these measures administered via telehealth.
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DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
High-performance triboelectric nanogenerators (TENGs) have become more attractive for energy harvesting and self-powered sensing applications. Herein, a stretchable, humidity-resistant, and ...high-performance multilayered TENG (M-TENG) is newly developed for self-powered biomotion and tactile sensing applications by using a zirconium metal-organic framework (MOF-525)@Ecoflex nanocomposite with a layer of Ecoflex@cobalt-nanoporous carbon (Co-NPC)@MXene. The MOF-525 improved TENG’s performance four times due to homogeneous porosity and high charge accumulation. The porous structure of the Co-NPC functions as charge traps, promoting high charge-trapping capability, while the MXene nanosheets operate as microcapacitors, improving transport-ions inside the Ecoflex@Co-NPC@MXene nanocomposite (charge-trapping and charge-transport). When the Ecoflex@Co-NPC@MXene nanocomposite was added as an intermediate layer, it captured triboelectric charges from the charge-generating layer and accumulated more negative charges, improving the M-TENG performance by 13 times. A 3D-printed microstructure is apprehended to the surface to increase contact area and humidity-resistant. Besides, knitted fabrics provide flexible electrodes due to their excellent stretchability. The as-prepared M-TENG showed excellent performance, including a power density of 25.7 W/m2, sensitivity (149 V/KPa), humidity-resistant, and stretchability (245%) which are superior to the previously reported TENGs. By exploiting the outstanding stretchability of the M-TENG and its ultra-high sensitivity to mechanical stimuli, practical applications were successfully demonstrated in low-frequency wearable biomotion monitoring, biomechanical energy harvesting, high-precision character recognition, and as a self-powered tactile sensor. Furthermore, the real-time sensing capability was demonstrated via the LabVIEW interface and virtual-reality car games control by tracing the finger. Therefore, this work is anticipated to open exciting opportunities for wearable energy harvesters, self-powered sensing systems, and human-machine interfaces.
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•A zirconium metal-organic framework and hybridized nanocomposite coated stretchable fabric-based TENG is newly developed.•By providing a homogenous porosity MOF-525 contributed to increasing the TENG's performance fourfold.•An intermediate layer was added to accumulate more negative charges, which improved the performance 13 times in total.•The as-prepared M-TENG showed excellent power density (25.7 W/m2), sensitivity (149 V/KPa), and stretchability (245%).•The TENG was successfully demonstrated as a self-powered biomotion sensor and tactile sensor.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
Bismuth ferrite (BiFeO3) without any co-formed impurity phase was synthesized by sonochemical method. The average crystallite sizes of synthesized BiFeO3 for two sonication times of 40min and 2h were ...found to be 38 and 32nm and the corresponding band gaps were 2.1 and 2.2eV, respectively. In contrast to BiFeO3 synthesized by conventional precipitation route which gives rise to co-formed impurity phases, the sonochemically prepared phase-pure BiFeO3 nanoparticles exhibited an excellent low-ppm SO2 sensing behaviour with fast response and recovery. Also the sonochemically synthesized BiFeO3 was selective to SO2 in presence of carbon monoxide and butane and may turn out to be a potential functional material for SO2 leak alarms.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK
AbstractObjectiveTo describe trends in the burden of mortality due to subtypes of heart disease from 1999 to 2018 to inform targeted prevention strategies and reduce disparities.DesignSerial cross ...sectional analysis of cause specific heart disease mortality rates using national death certificate data in the overall population as well as stratified by race-sex, age, and geography.SettingUnited States, 1999-2018.Participants12.9 million decedents from total heart disease (49% women, 12% black, and 19% <65 years old).Main outcome measuresAge adjusted mortality rates (AAMR) and years of potential life lost (YPLL) for each heart disease subtype, and respective mean annual percentage change.ResultsDeaths from total heart disease fell from 752 192 to 596 577 between 1999 and 2011, and then increased to 655 381 in 2018. From 1999 to 2018, the proportion of total deaths from heart disease attributed to ischemic heart disease decreased from 73% to 56%, while the proportion attributed to heart failure increased from 8% to 13% and the proportion attributed to hypertensive heart disease increased from 4% to 9%. Among heart disease subtypes, AAMR was consistently highest for ischemic heart disease in all subgroups (race-sex, age, and region). After 2011, AAMR for heart failure and hypertensive heart disease increased at a faster rate than for other subtypes. The fastest increases in heart failure mortality were in black men (mean annual percentage change 4.9%, 95% confidence interval 4.0% to 5.8%), whereas the fastest increases in hypertensive heart disease occurred in white men (6.3%, 4.9% to 9.4%). The burden of years of potential life lost was greatest from ischemic heart disease, but black-white disparities were driven by heart failure and hypertensive heart disease. Deaths from heart disease in 2018 resulted in approximately 3.8 million potential years of life lost.ConclusionsTrends in AAMR and years of potential life lost for ischemic heart disease have decelerated since 2011. For almost all other subtypes of heart disease, AAMR and years of potential life lost became stagnant or increased. Heart failure and hypertensive heart disease account for the greatest increases in premature deaths and the largest black-white disparities and have offset declines in ischemic heart disease. Early and targeted primary and secondary prevention and control of risk factors for heart disease, with a focus on groups at high risk, are needed to avoid these suboptimal trends beginning earlier in life.
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BFBNIB, CMK, NMLJ, NUK, PNG, SAZU, UL, UM, UPUK
•Implementation of Fractional Order Fuzzy PID controller for a robotic manipulator.•Comparison with Fuzzy PID, Fractional Order PID and conventional PID.•Controllers tuning using Cuckoo Search ...Algorithm.•Fractional Order Fuzzy PID controller is found to be superior.
A two-link robotic manipulator is a Multi-Input Multi-Output (MIMO), highly nonlinear and coupled system. Therefore, designing an efficient controller for this system is a challenging task for the control engineers. In this paper, the Fractional Order Fuzzy Proportional-Integral-Derivative (FOFPID) controller for a two-link planar rigid robotic manipulator for trajectory tracking problem is investigated. Robustness testing of FOFPID controller for model uncertainties, disturbance rejection and noise suppression is also investigated. To study the effectiveness of FOFPID controller, its performance is compared with other three controllers namely Fuzzy PID (FPID), Fractional Order PID (FOPID) and conventional PID. For tuning of parameters of all the controllers, Cuckoo Search Algorithm (CSA) optimization technique was used. Two performance indices namely Integral of Absolute Error (IAE) and Integral of Absolute Change in Controller Output (IACCO) having equal weightage for both the links are considered for minimization. Numerical simulation results clearly indicate the superiority of FOFPID controller over the other controllers for trajectory tracking, model uncertainties, disturbance rejection and noise suppression.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK
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