Miracle-dz/UniFAR-FTUs huggingface dataset:
A Novel Method for Specific Emitter Identification Based on Singular Spectrum Analysis

As wireless platforms grow in popularity and store valuable information, their security becomes increasingly important. Specific emitter identification (SEI) is a novel means of enhancing the security of wireless networks. Thus, an automatic SEI system with good performance is meaningful. In this paper, a novel method for SEI based on singular spectrum analysis (SSA) is proposed. It uses SSA to analyze the transient signals and extract features for identification of mobile phones. A complete identification system is presented and its performance is evaluated by volume experiments, which show that the proposed method is efficient even at a reduced signal to noise ratio.
Mexico and the forum for economic cooperation, Asia-pacific, 1990-2019: Determinants of the sustainable productivity of the wood industry

The purpose of this research is to identify the determinants of the productivity of the wood industry for the economies that make up the Asia-Pacific Economic Cooperation Forum (APECF) in the period 1990-2019. As a dependent variable, a sustainable productivity index is created to measure this productivity. Using the econometric method of panel data, the impact of employment, capital stock, and innovation on the sustainable productivity of the wood manufacturing industry is found. The variable capital stock (SC) is estimated using the Perpetual Inventory Method (PIM) and incorporating an adjustment factor for the absence of the first observation. The findings indicate that there is a significant relationship between the sustainable productivity index and the variables employment, innovation, and capital stock. The study's findings demonstrate that productivity exists when there is a balance in the use of resources or public goods. The contribution that is made to the literature is about authentic productivity that promotes the improvement of the quality of life of the population as well as the responsible use of finite resources. This research examines the practical implications of sustainable forest resource utilization, specifically focusing on sustainable productivity.
Explaining the role of sex on disability: a population-based study.

PURPOSE There is no clear consensus about how sex influences prevalent disability and through what mechanisms. We investigated whether sex had a direct independent effect on disability or whether sex had an interactive effect on the relationship between chronic diseases/conditions and disability, and whether these effects differed in middle-aged versus older adults. DESIGN AND METHODS We used baseline data from two nationally representative health interview surveys, the Health and Retirement Study (HRS) and the Study of Asset and Health Dynamics Among the Oldest Old (AHEAD), and disability and covariate measures that were nearly identical in both surveys. Logistic regression models tested the contributions of diseases, impairments, and demographic and social characteristics on difficulties with prevalent activities of daily living (ADLs), mobility, and strength. RESULTS Models demonstrated no direct sex effect for ADL disability in either age group after adjusting for key covariates. However, sex did exert an indirect effect on ADL disability in older adults via musculoskeletal conditions and depressive symptoms. In contrast, female sex remained strongly associated with mobility and strength disability in both age groups, net of covariates. Major interactions were also significant, including a female sex/body mass index (BMI) interaction for mobility difficulty and several sex-disease interactions for strength disability in the middle-aged group. IMPLICATIONS The effect of sex on ADL difficulty is largely explained by social and health-related covariates in middle-aged and older adults. In contrast, the independent association of female sex with decreased strength and mobility in both groups cannot be explained by our models' social or health-related variables. In addition, the positive association of BMI with mobility difficulty is significantly worse for women than for men.
Association study of 90 candidate gene polymorphisms in panic disorder

Objective In the present investigation we screened a large number of single nucleotide polymorphisms in the genes relevant to the neurobiology of anxiety for their association with panic disorder (PD). Methods The study sample included 127 patients with PD and 146 healthy control subjects. Using Arrayed Primer Extension technology we genotyped 90 polymorphisms in 21 candidate genes of serotonin, cholecystokinin, dopamine and opioid neurotransmitter systems. The association and haplotype analyses were performed in the whole group (PD-all) and in the subgroups of PD comorbid with major depression (PD-comorbid, n=60) and without any comorbidity (PD-pure, n=42). Results From the set of 90 polymorphisms, eight single nucleotide polymorphism markers in eight genes displayed at least a nominal association with any of the studied PD phenotype subgroups. Several polymorphisms of cholecystokinin, serotonin and dopamine systems were associated with PD-all and/or PD-comorbid phenotypes, while pure PD was associated only with HTR2A receptor 102T-C (P=0.01) and DRD1 receptor −94G-A (P=0.02) polymorphisms. Haplotype analysis supported an association of the cholecystokinin gene TG haplotype with the PD-all group (P=0.04), whereas DRD1 receptor CAA and HTR2A receptor AT haplotypes were associated with a lower risk for PD-pure phenotype (P=0.03 and P=0.04, respectively). Conclusions The study results suggest that genetic variants of several candidate genes of neurotransmitter systems, each of a minor individual effect, may contribute to the susceptibility to PD. Our data also indicate that genetic variability may have a distinctive influence on pure and comorbid phenotypes of PD.
Money Rules for the Eurozone Candidate Countries

This study proposes the adoption of money growth rules as indicator variables of monetary policies by the countries converging to a common currency system, in particular, by the eurozone candidate countries. The analytical framework assumes an inflation target as the ultimate policy goal. The converging countries act in essence as “takers” of the inflation target, which, in this case, is the eurozone’s inflation forecast. The study advances a forwardlooking money growth model that might be applied to aid monetary convergence to the eurozone. However, feasibility of adopting money growth rules depends on stable relationships between money and target variables, which are low inflation and stable exchange rate. Long-run interactions between these variables are examined for Poland, Hungary and the Czech Republic by employing a Johansen cointegration test, along with short-run effects assessed with a vector error correction procedure.
Selecting the best locations for data centers in resilient optical grid/cloud dimensioning

For optical grid/cloud scenarios, the dimensioning problem comprises not only deciding on the network dimensions (i.e., link bandwidths), but also choosing appropriate locations to install server infrastructure (i.e., data centers), as well as determining the amount of required server resources (for storage and/or processing). Given that users of such grid/cloud systems in general do not care about the exact physical locations of the server resources, a degree of freedom arises in choosing for each of their requests the most appropriate server location. We will exploit this anycast routing principle (i.e., source of traffic is given, but destination can be chosen rather freely) also to provide resilience: traffic may be relocated to alternate destinations in case of network/server failures. In this study, we propose to jointly optimize the link dimensioning and the location of the servers in an optical grid/cloud, where the anycast principle is applied for resiliency against either link or server node failures. While the data center location problem has some resemblance with either the classical p-center or k-means location problems, the anycast principle makes it much more difficult due to the requirement of link disjoint paths for ensuring grid resiliency.
Absolute Model of Autonomy and Power: Toward Group Effects

We present a model of absolute autonomy and power in agent systems. This absolute sense of autonomy captures the agent’s liberty over an agent’s preferences. Our model characterizes an affinity between autonomy and power. We argue that agents with similar individual autonomy and power experience an adjusted level of autonomy and power due to being in a group of like agents. We then illustrate our model on the problem of task allocation.
SYMBIODINIUM NATANS SP. NOV.: A “FREE‐LIVING” DINOFLAGELLATE FROM TENERIFE (NORTHEAST‐ATLANTIC OCEAN) 1

We examined a free‐living Symbiodinium species by light and electron microscopy and nuclear‐encoded partial LSU rDNA sequence data. The strain was isolated from a net plankton sample collected in near‐shore waters at Tenerife, the Canary Islands. Comparing the thecal plate tabulation of the free‐living Symbiodinium to that of S. microadriaticum Freud. , it became clear that a few but significant differences could be noted. The isolate possessed two rather than three antapical plates, six rather than seven to eight postcingular plates, and finally four rather than five apical plates. The electron microscopic study also revealed the presence of an eyespot with brick‐shaped contents in the sulcal region and a narrow anterior plate with small knob‐like structures. Bayesian analysis revealed the free‐living Symbiodinium to be a member of the earliest diverging clade A. However, it did not group within subclade AI (=temperate A) or any other subclades within clade A. Rather, it occupied an isolated position, and this was also supported by sequence divergence estimates. On the basis of comparative analysis of the thecal plate tabulation and the inferred phylogeny, we propose that the Symbiodinium isolate from Tenerife is a new species (viz. S. natans). To elucidate further the species diversity of Symbiodinium, particularly those inhabiting coral reefs, we suggest combining morphological features of the thecal plate pattern with gene sequence data. Indeed, future examination of motile stages originating from symbiont isolates will demonstrate if this proves a feasible way to identify and characterize additional species of Symbiodinium and thus match ribotypes or clusters of ribotypes to species.
Faster cross‐bridge detachment and increased tension cost in human hypertrophic cardiomyopathy with the R403Q MYH7 mutation

The R403Q mutation, located in the S1 domain of the β‐myosin heavy chain, is associated with a severe phenotype of hypertrophic cardiomyopathy (HCM). Increased cross‐bridge relaxation kinetics caused by the R403Q mutation might underlie increased energetic cost of sarcomeric tension generation; however, direct evidence is absent. We studied the relationship between cross‐bridge kinetics and energetics in single cardiac myofibrils and multicellular cardiac muscle strips in human HCM tissue with and without the R403Q mutation. In human HCM with the R403Q mutation, cross‐bridge relaxation was faster and correlated well with a rise in energetic cost of tension generation. Our data suggest that an increase in tension cost is one of the causes underlying cardiomyopathy development in patients with the R403Q mutation.
Detection, eye–hand coordination and virtual mobility performance in simulated vision for a cortical visual prosthesis device

In order to assess visual performance using a future cortical prosthesis device, the ability of normally sighted and low vision subjects to adapt to a dotted ‘phosphene’ image was studied. Similar studies have been conduced in the past and adaptation to phosphene maps has been shown but the phosphene maps used have been square or hexagonal in pattern. The phosphene map implemented for this testing is what is expected from a cortical implantation of the arrays of intracortical electrodes, generating multiple phosphenes. The dotted image created depends upon the surgical location of electrodes decided for implantation and the expected cortical response. The subjects under tests were required to perform tasks requiring visual inspection, eye–hand coordination and way finding. The subjects did not have any tactile feedback and the visual information provided was live dotted images captured by a camera on a head-mounted low vision enhancing system and processed through a filter generating images similar to the images we expect the blind persons to perceive. The images were locked to the subject's gaze by means of video-based pupil tracking. In the detection and visual inspection task, the subject scanned a modified checkerboard and counted the number of square white fields on a square checkerboard, in the eye–hand coordination task, the subject placed black checkers on the white fields of the checkerboard, and in the way-finding task, the subjects maneuvered themselves through a virtual maze using a game controller. The accuracy and the time to complete the task were used as the measured outcome. As per the surgical studies by this research group, it might be possible to implant up to 650 electrodes; hence, 650 dots were used to create images and performance studied under 0% dropout (650 dots), 25% dropout (488 dots) and 50% dropout (325 dots) conditions. It was observed that all the subjects under test were able to learn the given tasks and showed improvement in performance with practice even with a dropout condition of 50% (325 dots). Hence, if a cortical prosthesis is implanted in human subjects, they might be able to perform similar tasks and with practice should be able to adapt to dotted images even with a low resolution of 325 dots of phosphene.
Modeling Water Motion near Seismic Waves Propagating across a Graded Seabed, as Generated by Man-Made Impacts

Seismic interface waves generated by seabed impacts are believed to have biological importance. Various wave types are of interest to seismologists, who can minimize the unwanted, but often dominant, ground roll waves with suitable instrumentation. Waves made by dredging and piling have been measured using geophones and found to be of this interface type, which propagate much more slowly than the pressure waves in the water column above. Short interface wavelets of a few cycles were modeled using transient finite element analysis (FEA). Wavelets with low losses have been modeled using graded sediment data from the literature. They do not radiate energy away from the interface because the evanescent acoustic pressures they generate decay rapidly with distance from the seabed. Associated water particle velocities are much greater than would be expected from similar acoustic pressure measurements in a free field. This motion is significant to aquatic life which is dependent on inertial sensors (otoliths, etc.) to respond to the environment. Additional amplification of the horizontal seabed motion of the adjacent water is predicted for a short seismic wavelet modeled in a graded solid seabed. Further recent analysis studied the distribution of the energy flux within the sediment layers.
Factors affecting theophylline clearances: age, tobacco, marijuana, cirrhosis, congestive heart failure, obesity, oral contraceptives, benzodiazepines, barbiturates, and ethanol.

Pharmacokinetic, pathophysiologic, and historic data were systematically collected while monitoring theophylline therapy in adult pulmonary patients and from special studies in pediatric patients, normal volunteers, and patients with other diseases. Total body clearances (ClT) were estimated by nonlinear computer analysis after infusion dosage or from area under the curve data following single oral or intravenous theophylline doses. The ClT values, primarily reflecting the theophylline biotransformation rate, averaged 58 (±30) ml/hr/kg and ranged from 4 to 143 ml/hr/kg. Factors examined for their effect on theophylline ClT included age; sex; liver disease; congestive heart failure; obesity; renal function; history of drug, tobacco, marijuana, caffeine, or alcohol use; and pregnancy. The NYBAID (automatic interaction detector) computer program for analysis of variance was employed to determine the order, priority, and combinations of independent variables correlating with ClT. The major factors that affected theophylline ClT in this population included age, liver disease, smoking status, and congestive heart failure. Age showed strong correlation (r = −0.49) with ClT. Much additional variability was accounted for in specific subgroups. For example, young adult (20-40 years) marijuana users exhibited highest ClT vales (83 ± 29 ml/hr/kg) while older patients (>40 years) with liver disease had the lowest metabolism rates (22 ± 10 ml/hr/kg). In particular subject types, sex (in teenagers), oral contraceptives (in smokers), obesity (in young nonsmokers), and barbiturates also affected theophylline disposition. In contrast, several common factors such as chronic theophylline, chronic corticosteroids, caffeine, sex (in adults), and pregnancy did not alter theophylline ClT. - This unique clinical pharmacokinetic monitoring and statistical approach to drug clearance characterization in patients permits identification of criteria in a format that may be useful for the prediction of drug disposition rates and dosage regimens.
Induction and functional characterization of class II MHC (Ia) antigens on murine keratinocytes.

To induce Ia molecules on the surface of murine keratinocytes (KC), healthy mice were treated daily with i.p. injections of rIFN-gamma at a dose of 50,000 U/day for 6 days. This resulted in strong Ia expression by KC as determined by immunofluorescence of epidermal sheets or cell suspensions with anti-class II mAb. To obtain a population of Ia-bearing KC devoid of Langerhans cells, a method of depleting Langerhans cells from such suspensions was developed. Although Ia+ KC were unable to stimulate allogeneic T cells in a primary epidermal cell-lymphocyte reaction (less than 5% control), they did induce a proliferative response in an allospecific T cell line. Ia+ KC were unable to present native peptide molecules to class II restricted, Ag-specific T cell hybridomas. However, Ia+ KC were able to present a peptide fragment of pigeon cytochrome c to a hybridoma, suggesting that although these cells cannot process native protein Ag, they can present antigenic peptides. Ia+ (but not Ia-) KC also served as targets for class II restricted cytolytic T cell clones. These data indicate that the Ia expressed by KC is a functional molecule, and that Ia+ KC can participate in some immunologic reactions.
Electrode degradation analysis in aluminium-based resistance spot welding process

This work presents the preliminary analysis done to determine the electrode degradation during a resistance spot welding manufacturing process of aluminium-based unions. This process represents a critical step in a high production rate manufacturing line, where currently identical welding parameters are used for the tens of thousands of dayly produced parts. During the welding process, the aluminium can melt locally, producing droplets that adhere to the electrode speeding its degradation that affects the quality of the joint. Degradation is hard to predict since it depends on part surface quality, electrode preparation and system set-up. In this work, an analysis of the degradation of the electrode associated with the observed and measured quality of the parts is carried out. With the final aim to advance toward a zero defect manufacturing scenario and increase the quality of the produced parts, a process data analysis based on fuzzy logic algorithms will be performed. An assessment of (i) produced part quality, (ii) the electrode degradation state, (iii) detection of different performance modes of the parameters and (iv) detection of events or process changes, will be done using image and production line data. This will allow to determine (i) when the electrode must be changed and (ii) the optimal combination of welding parameters to extend electrodes' life assuring welding quality.
Evolution of Changes in Upper Airway Collapsibility during Slow Induction of Anesthesia with Propofol

Background:Upper airway collapsibility is known to increase under anesthesia. This study assessed how this increase in collapsibility evolves during slow Propofol induction and how it relates to anesthesia-induced changes in upper airway muscle activity and conscious state. Methods:Nine healthy volunteers were studied. Anesthesia was induced with Propofol in a step-wise manner (effect-site concentration steps of 0.5 &mgr;g · ml−1 from 0 to 3 &mgr;g · ml−1 and thereafter to 4 &mgr;g · ml−1 and 6 &mgr;g · ml−1 [target-controlled infusion]). Airway patency was maintained with continuous positive airway pressure. Pharyngeal collapsibility was assessed at each concentration by measuring critical pressure. Intramuscular genioglossus electromyogram and anesthetic depth (bispectral index score) were monitored throughout. Loss of consciousness was defined as failure to respond to loud verbal command. Results:Loss of consciousness occurred at varying Propofol effect-site concentrations between 1.5 and 4.0 &mgr;g · ml−1. Initially genioglossus electromyographic activity was sustained with increases in Propofol concentration, increasing in some individuals. At or approaching loss of consciousness, it decreased, often abruptly, to minimal values with an accompanying increase in critical pressure. In most subjects, bispectral index score decreased alinearly with increasing Propofol concentration with greatest rate of change coinciding with loss of consciousness. Conclusions:Slow stepwise induction of Propofol anesthesia is associated with an alinear increase in upper airway collapsibility. Disproportionate decreases in genioglossus electromyogram activity and increases in pharyngeal critical closing pressure were observed proximate to loss of consciousness, suggesting that particular vulnerability exists after transition from conscious to unconscious sedation. Such changes may have parallels with upper airway behavior at sleep onset.