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Hardison Quinn
Hardison Quinn

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The particular prognostic part associated with D-dimer within in the hospital COVID-19 individuals.

Introduction Shiftwork can be a risk factor for a number of different somatic and psychological health conditions, especially sleep disorders. Shiftworkers sleep less than dayworkers, and 20-40% of them suffer from difficulties initiating and maintaining sleep, which result in reduced capacity for work and social life. A common coping strategy might be the use of alcohol, which presents a health and safety hazard as it further impairs sleep quality and exacerbates sleepiness in the workplace. This review aimed to assess the extent of such possible connections. Methods We performed a systematic search of the scientific literature on shiftwork and alcohol consumption in PubMed, PsycInfo, and Cochrane Library. Only original studies comparing shiftworkers with non-shiftworkers were included. The recommendations of the Preferred Reporting Items of Systematic Reviews and Meta-Analyses were followed. Results Fourteen articles are included in this review. Six studies report some kind of connection between shift- or nightwork and alcohol consumption, especially as a sleep aid. Conflicting or negative results are reported by 3 studies. Discussion Shiftwork, especially working at night and in rotation shifts, is associated with binge drinking disorder in different professions. The reasons for pathological consumption of alcohol can be self-medication of sleep problems or coping with stress and psychosocial problems typical for shiftwork. Nurses aged over 50 years represent one important risk group. These results can be important for preventive programs against sleep disorders, including measures other than drinking alcohol as a sleep aid in the workplace of shiftworkers.Introduction The psychological contribution to functional neurological and somatic symptom disorders is a major topic in current medical debate. Objective For an understanding of the processes leading to functional somatic symptoms, it is paramount to explore their relationship with stress and life events and to elucidate the contribution of cultural factors. Methods A total of 937 case records of civilian and military patients with functional somatic disorders treated in London during World War 1 were analysed. Group differences in symptom profiles and contemporaneous diagnoses were tested with χ2 tests. Results Paralyses and speech disturbances were significantly more common in soldiers (43.3 and 17.2% of cases) than in civilian male (28.1 and 6.5%) and female patients (32.4 and 7.5%), whereas female patients had the highest rates of pain (48.6%) and somatic symptoms (67%). Triggers were identified in around two-thirds of cases and included accidents, physical illness, and work stress, in addition to the combat experience of the soldier patients. The nature of the trigger influenced symptom expression, with acute (combat and noncombat) events being particularly prone to trigger loss of motor function. Symptom profiles showed a great deal of multi-morbidity and overlap, although some symptom clusters were more (motor and speech disturbance) or less common (pain and loss of energy) in soldiers than civilians. Triggering life events in civilians were similar to those reported by patients with somatic symptom disorders today, with an important role of physical factors. Patterns of multi-morbidity and symptom clusters also resembled those of modern cohorts. Conclusions Analysis of historical records, illness trajectories, and treatments can enhance the understanding of the presentation, mechanisms, and course of functional neurological and related disorders and their consistency over time.Background Anthracycline is used to treat various types of cancer; however, cardiotoxicity negatively affects patient prognosis. Objectives The aim of the present study was to investigate serial changes in levels of cardiac troponin I (TnI) and B-type natriuretic peptide (BNP) in patients treated with anthracycline-containing therapy. Methods 91 consecutive cancer patients planned for anthracycline treatment were enrolled and followed up for 12 months. All patients underwent echocardiography and blood sampling at baseline, 3, 6, and 12 months. Results The patients were divided into two groups based on their TnI level during the follow-up period the elevated TnI group (TnI ≥0.03 ng/mL; n = 37) and the normal TnI group (n = 54). In the elevated TnI group, the TnI levels increased at 3 and 6 months, but they returned to within normal range at 12 months after anthracycline administration. Unlike TnI, the BNP levels began to increase after 6 months, and remained increased at 12 months. The occurrence of cancer therapeutics-related cardiac dysfunction was higher in the elevated TnI group than in the normal TnI group. When we set the cut-off value of TnI at 0.029 ng/mL, sensitivity and specificity to predict an elevated BNP level of more than 100 pg/mL were 90 and 63%, respectively. Multivariate logistic regression analysis revealed that elevated TnI was an independent predictor of elevated BNP levels. Conclusion Elevated TnI was an independent predictor for the development of BNP increase. The different characteristics of TnI and BNP should be considered when managing patients treated with anthracycline-containing therapy.Thermal treatment of carbon nanotubes (CNTs) can significantly improve their mechanical, electrical and thermal properties due to reduced defects and increased crystallinity. In this work we investigate the effect of annealing at 3000°C of vertically aligned CNT arrays synthesized by chemical vapor deposition (CVD) on graphite. Raman measurements show a drastically reduced amount of defects and, together with transmission electron microscope (TEM) diffraction measurements, an increased average crystallite size of around 50%, which corresponds to a 124% increase in Young's modulus. We also find a tendency for CNTs to bond to each other with van der Waals (vdW) forces, which causes individual CNTs to closely align with each other. This bonding causes a densification effect on the entire CNT array, which appears at temperatures >1000°C. The densification onset temperature corresponds to the thermal decomposition of oxygen containing functional groups, which otherwise prevents close enough contact for vdW bonding. Finally, the remaining CVD catalyst on the bottom of the CNT array is evaporated during annealing, enabling direct anchoring of the CNTs to the underlying graphite substrate.On-chip learning in spin orbit torque driven domain wall synapse based crossbar fully connected neural network (FCNN) has been shown to be extremely efficient in terms of speed and energy, when compared to training on a conventional computing unit or even on a crossbar FCNN based on other non-volatile memory devices. However there are issues with respect to scalability of the on-chip learning scheme in the domain wall synapse based FCNN. Unless the scheme is scalable, it will not be competitive with respect to training a neural network on a conventional computing unit for real applications. In this paper, we have proposed a modification in the standard gradient descent algorithm, used for training such FCNN, by including appropriate thresholding units. This leads to optimization of the synapse cell at each intersection of the crossbars and makes the system scalable. In order for the system to approximate a wide range of functions for data classification, hidden layers must be present and the backpropagation algorithm (extension of gradient descent algorithm for multi-layered FCNN) for training must be implemented on hardware. We have carried this out in this paper by employing an extra crossbar. Through a combination of micromagnetic simulations and SPICE circuit simulations, we hence show highly improved accuracy for domain wall syanpse based FCNN with a hidden layer compared to that without a hidden layer for different machine learning datasets.We discuss in detail the electron scattering pattern on skyrmion-like magnetic textures in twodimensional geometry. The special attention is focused on analyzing the scattering asymmetry, which is a precursor of the topological Hall eect. We present analytical results valid in the limiting regimes of strong and weak coupling, we analyze analytically the conditions when the transverse response acquires a quantized character determined by the topological charge of a magnetic texture, we also derive the numerical scheme that gives access to the exact solution of the scattering problem. We describe how the electron scattering asymmetry is modied due to an additional short-range impurity located inside a magnetic skyrmion. Based on the numerical computations we investigate the properties of the asymmetric scattering for an arbitrary magnitude of the interaction strength and the topology of a magnetic texture, we also account for the presence or absence of a scalar impurity.In aquatic pedestrial locomotion, the dynamics of terrestrial and aquatic environments are coupled. Here we study terrestrial running and aquatic punting locomotion of the marine-living crabPachygrapsus marmoratus. We detected both active and passive phases of running and punting through the observation of crab locomotory behavior in standardized settings and by 3D kinematic analysis of its dynamic gaits using high speed video cameras. Variations in different stride parameters were studied and compared. The comparison was done based on the dimensionless parameter Froude number (Fr) to account for the effect of buoyancy and size variability among the crabs. The Underwater Spring Loaded Inverted Pendulum (USLIP) model better fitted the dynamics of aquatic punting. This model comprehends the damping effect of the aquatic environment, variable not considered by the Spring Loaded Inverted Pendulum (SLIP) in reduced gravity. The results of the present study highlight the underlying principles of aquatic-terrestrial locomotion by comparing itself with terrestrial locomotion. SR10221 Comparing punting to running, we show evidence that stride period increased; the duty cycle decreased; and, the orientation of carapace was more inclined with the horizontal plane, indicating the significance of fluid forces on the dynamics attributed by the aquatic environment. Moreover, we discovered periodicity in punting locomotion of crabs and two different gaits, namely, long flight punting and short flight punting, distinguished by both footfall patterns and kinematic parameters. The generic fundamental model which belongs to all animal performing both terrestrial and aquatic legged locomotion has implications both on control strategies, evolution, and translation on robotic artifacts.Copper nanowires (CuNWs) are remarkable components that can replace indium tin oxide (ITO) as transparent electrodes due to their low cost, high conductivity and acceptable transmittance. However, a common coating method can cause poor electrical, optical and adhesively properties because of the creation of loosely connected junctions. In addition, the dissatisfactory thermal and environmental stabilities also limit the practical applications. These problems should be overcome in CuNW-based films for reliable transparent electrodes through material and engineering approaches. In this work, a novel transparent composite electrode composed of chitosan and CuNWs on flexible polyethylene terephthalate (PET) substrate, with synchronously strengthened adhesion, heightened transmittance, reduced resistivity, improved flexibility, enhanced thermal stability and increased environmental stability, is prepared without vacuum processing and high-temperature annealing. The effects of the number of CuNW network layers and chitosan concentration on the performance of chitosan/CuNWs composite transparent electrodes were studied.SR10221

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