Miracle-dz/UniFAR-FTUs huggingface dataset:
The Realization of Chipless RFID Resonator for Multiple Physical Parameter Sensing

We present the design of asymmetric circular split ring resonator as a chipless radio frequency identification (RFID) sensor tag design that can be deployed to measure multiple physical parameters wirelessly in ultrawideband frequencies. Secondarily, the proposed tag design can extend to be used as a chipless RFID tag with actual data encoded for product identification purposes. The proposed resonator design consists of four complementary split circular rings. Each gap between the rings acts as a capacitive sensor which is optimized to have a resonance with a high-quality factor. Each resonance can be considered as a sensor to deploy smart materials that are sensitive to different environmental physical parameters, which can be operated in wireless conditions. The fabricated chipless RFID sensor provides a higher ${Q}$ factor, aligned with the optimized simulation model. Chipless RFID sensors are comparatively low-cost, but they provide enormous design flexibility in diversified applications. The proposed design holds a great promise for sensing multiple physical parameters in a remote setting.
Static Signature Authentication based on J48 and Random Forest

— With the exposure and development of technology, a better security system is needed to protect the data. Off-line signature verification is one of the prime area of research which is most widely recommended by the research community for security issues. For the Off-line signature verification from spontaneous handwritten signature image a precise and effective method is proposed which contributes significantly to that area and comprises of image prepossessing, feature extraction and decision tree classifier such as J48 and Random Forest. It exploit totally different features of writing like number of closed loop, standard deviation, skewness, number of edge points, kurtosis, centroid and number of cross points by computing a collection of options from writing samples at totally different levels of observations. These features are extracted from the standard signature database and extracted features are analyzed correspondingly. The method proposed here monitor an effective accuracy of the proposed algorithm.
Caesarean delivery: Bringing more than just a bundle of joy

ABSTRACT Background: Chronic postsurgical pain (CPSP) is a potential complication of all surgical procedures, including caesarean delivery (CD). Psychological factors such as anxiety and depression with negative coping strategies are known to increase the risk of the development of CPSP. Aim: This short review will appraise some additional features that are unique to CD and assess the interplay between them and persisting pain. Methods: This is a narrative review with a focus on describing relevant features associated with the development of CPSP after CD. Results: Hormone changes, postpartum depression, breastfeeding, and sleep disturbance each may affect the mother’s pain in the short and long term. Together they have the potential to negatively impact the mother–infant bond. Conclusions: In the weeks after delivery, pain, depression, and poor sleep negatively impact the mother’s quality of life and her ability to care for, and bond with, her baby. This represents a critical time for the emotional, social, and behavioral development of the infant. Far-reaching benefits for the whole family may be realized by the early identification and management of persisting postoperative pain and postpartum depression.
Static verification for memory safety of Linux kernel drivers

Memory errors in Linux kernel drivers are a kind of serious bugs that can lead to dangerous consequences but such errors are hard to detect. This article describes static verification that aims at finding all errors under certain assumptions. Static verification of industrial projects such as the Linux kernel requires additional effort. Limitations of current tools for static verification disallow to analyze the Linux kernel as a whole, so we use a simplified automatically generated environment model. This model introduces inaccuracy, but provides ability for verification. In addition, we allow absent definitions for some functions which results in incomplete ANSI C programs. The current work proposes an approach to reveal issues with memory usage in such incomplete programs. Our static verification technique is based on Symbolic Memory Graphs (SMG) with extensions aiming to reduce a false alarm rate. We introduced an on-demand memory conception for simplification of kernel API models and implemented this conception in static verification tool CPAchecker. Also, we changed precision of a CPAchecker memory model from bytes to bits and supported structure alignment similar to the GCC compiler. We implemented the predicate extension for SMG to improve accuracy of the analysis. We verified of Linux kernel 4.11. 6 and 4.16. 10 with help of the Klever verification framework with CPAchecker as a verification engine. Manual analysis of warnings produced by Klever revealed 78 real bugs in drivers. We have made patches to fix 33 of them.
Transapical beating heart mitral valve repair with the NeoChord system: early outcomes of a single-center experience

Introduction Trans-apical beating heart off-pump mitral valve (MV) repair is a novel surgical technique for treating mitral regurgitation (MR) caused by degenerative flail/prolapse (DLP). Aim To present early outcomes of a single-center experience with transapical beating heart mitral valve repair with the NeoChord system. Material and methods Thirty-seven patients with severe symptomatic MR were treated with the NeoChord technique between September 2015 and December 2018 (78% men; mean age: 62.3 ±13.4 years). We evaluated standard cardiac surgery perioperative complications as well as those related to the NeoChord technique as well as early surgical success as defined by the reduction of MR to less than moderate by implantation of at least 2 neochordae. Results During this series we had no hemodynamic instability due to bleeding or arrhythmia. There were no transapical technique-related adverse events such as a leaflet perforation or tear, a major native chord rupture, which would require implantation of a new chord, ventricular apex rupture, or left atrial perforation. There were no major adverse events including death, stroke or acute myocardial infarction. Nine (24%) patients developed an episode of perioperative atrial fibrillation. We were able to conclude the operation in 98% of our patients with less than moderate MR. One (2%) patient had moderate MR at the conclusion of the operation. Conclusions Trans-apical off-pump MV repair with the NeoChord system is a safe, minimally invasive procedure, with few minor complications. In well-selected candidates it provides successful treatment of degenerative MR. Results are anatomy dependent, so preoperative patient selection is crucial.
Performance and preference of broiler chickens exposed to different lighting sources

SUMMARY Vision is important in poultry behavior and welfare. Poultry have highly specialized visual systems, and the majority of their behavior is mediated by vision. In the present study, we evaluated the lighting preference of broiler chickens exposed to different lighting sources and their production performance. In the first portion of the study, we evaluated the preference of birds for white and yellow lighting provided by light-emitting diode (LED) bulbs. Bird preference was assessed by videos recorded during the experiment. In the second portion of the study, we evaluated the performance of broiler chickens exposed to LED and compact fluorescent lamps (CFL). Performance was assessed in terms of mortality rate, bird BW, daily BW gain, feed consumption, and feed conversion. The chickens occupied environments with yellow and white LED lighting evenly and did not show any behavioral sign of preference for one of the environments. However, birds presented greater feed consumption at 21, 28, and 35 d of age when exposed to white LED lighting. Generally, birds exposed to LED lighting presented better production performance than birds under the CFL. Seven-day-old male chickens presented better feed conversion under LED illumination than did males of the same age under CFL.
Competing Risk of Death and Time-Varying Covariates in Cardiovascular Epidemiologic Research: Modeling the Hazards of Coronary Heart Disease in the First National Health and Nutrition Examination Survey Epidemiologic Follow-Up Study

Competing risk of death and time-varying covariates, often overlooked during statistical analyses of longitudinal studies, can alter the magnitude of estimates of the effect of covariates on the hazards of health outcomes. This study aimed to investigate whether estimates obtained when modeling the effect of risk factors on the hazards of coronary heart disease (CHD) varied significantly while accounting for the presence of competing risk of death and time-varying covariates. We used data from the First National Health and Nutrition Examination Survey Epidemiologic Follow-Up Study (n=6346) to model estimates of the effect of risk factors on the hazards of CHD using Cox proportional hazards model, Cox extension with time-varying covariates, and the Fine Gray approach. We used a chi-square test to compare coefficient estimates obtained from the three modeling techniques. We obtained a P-value > 0.05 when comparing coefficient estimates for body mass index, age, cholesterol, smoking, and diabetes after fitting the three models. Coefficient estimates obtained when modeling the effect of risk factors on the hazards of CHD did not vary significantly in the presence of competing risk of death and time-varying covariates. Researchers should consider exploring these concepts more systematically in cohort studies with cardiovascular outcomes.
Genetic and Ecological Variation in Atherosperma moschatum and the Implications for Conservation of its Biodiversity

Population genetics and ecology of Atherosperma moschatum Labill. (sassafras), a major canopy tree of Australian temperate rainforests, were examined and used to identify priorities and strategies for conservation of its genetic diversity. The genetic diversity among populations was fairly low, but higher than average for long-lived late successional or wind dispersed species (Hamrick and Godt 1989). Genetic distances between populations were correlated with geographic distances and climatic differences. The major genetic differentiation was between the mainland populations and those in Tasmania, with the New South Wales populations being quite genetically distinct. Most genetic variation was found within populations, however, most populations were inbred. This is likely to be due to selfing and spatial genetic substructure resulting from vegetative spread and local dispersal. There was evidence of regeneration in all populations, however no consistent regeneration patterns emerged. Population density was inexplicably correlated with genetic distance. There was as much diversity in all variables (ecological and genetic) measured in small isolated populations as there was in stands within larger assemblages; therefore, population size does not appear to be a major factor affecting viability. Genetic variation was spread throughout the distribution of A. moschatum. Therefore, populations from throughout its range would need to be conserved to retain the genetic diversity within this species.
Nutritive value of browses as protein supplement(s) to poor quality roughages

In tropical and subtropical regions, pasture grasses and cereal residues are frequently low in nutrients especially protein and therefore cannot support high levels of ruminant production. Many browse species are endowed with high levels of protein and hence suitable as supplements. The objective of this study was to develop indices that could be used to predict nutritive value of browses as supplements to poor quality roughage basal diets. Experiments were carried out to address issues related to establishing an experimental protocol for screening large browse species in feeding trials, the effect of animal species and the proportion of browse in the diet. Different methods to estimate protein digestion in small intestine were compared and data of individual browses collected. The palatability method developed was suitable for evaluating palatability of large numbers of browses under stall feeding condition. If palatability is done to predict long term intake a period of 5 to 8 days should be allowed. Classification of browses using either chemical composition, degradability or gas production characteristics led to different cluster groups than when palatability was used. Tannins had beneficial attributes at moderate levels and detrimental effect at high levels. The optimum level of browse supplementation was 30 to 45% of the ration dry matter. Browses need to be further studied since some of the secondary chemicals contained may affect reproduction.
Degradation of antifouling booster biocides in water

The concentrations of booster compounds were surveyed in the port of Osaka, Japan. The concentrations of Sea-Nine 211, Diuron and Irgarol 1051 in water samples from the port of Osaka were in the ranges <0·30–0·55 ng l−1, 13–350 ng l−1, 1·3–77 ng l−1, respectively. Pyrithiones were not detected in water samples. The levels of Diuron and Irgarol 1051 in the port of Osaka were high in the mooring area for small and medium-hull vessels with poor flushing. Susceptibility of bacterial populations in estuarine water to antifouling biocides was studied. Sea-Nine 211, Diuron, Irgarol 1051 and Copper pyrithione dissolved in dimethyl sulfoxide (DMSO) were added to estuarine water and number of colony forming units (CFU) of bacteria in estuarine water was counted using R2A agar plate. The CFU was not decreased at the concentration less than 1·0 mg/l of Diuron, Irgarol 1051 and Copper pyrithione. However, CFU was decreased at 0·1 mg/l of Sea-Nine 211. Degradation of Sea-Nine 211, Diuron, Irgarol 1051 and Copper pyrithione by bacteria in estuarine water was studied using a die-away method. At an initial concentrations of 0·1 mg/l, observed half-lives of Sea-Nine 211 and Copper pyrithione were 10 and 20 days, respectively. In contrast, Diuron and Irgarol 1051 were degraded scarcely during 60 days of culture. Photodegradation of these booster biocides by sunlight and UV light were studied. Under UV, all biocides were below detection limit after one day of irradiation. Under sunlight, Copper pyrithiones were also below detection limits after one day. Drastic decrease of Sea-Nine 211 concentration was observed after one day. Diuron and Irgarol 1051 scarcely decreased during 17 days of sunlight irradiation.
Effect of delayed vial entry on the recovery and time to positivity of microorganisms from automated blood culture vials in a tertiary care hospital, South India

Recommendations by manufacturers depict that blood culture bottles are to be loaded into the automated machines as soon as possible after the blood collection. But it has been noticed that in peripheral set-ups where round the clock laboratory facility is not available or which are located far from the reference labs, or even in the tertiary care centres, delay occurs prior to the bottle loading into the instruments. In our study, we have compared the effect of pre-incubating the blood culture bottles at various temperatures like 4°C, room temperature and 37°C for various holding times, such as 2, 6, 12 and 24 hours simulating the delay in transport time in BACTEC plus Aerobic and BACTALERT FA plus systems in a tertiary care set up. We included five recent clinical isolates of different microorganisms in our study, such as Staphylococcus aurous, Streptococcus, Escherichia coli, Pseudomonas aeruginosa and Candida albicans. Standard inoculum was prepared for each organism and 3 ml of it was added with 10 ml of citrated human blood and then inoculated into blood culture vial (BACTALERT FA plus and BACTEC Plus). Organism recovery rate, time to detection and rates of false-negativity from both the instruments were evaluated by using seeded blood culture vial and controls with delayed entry. Performance wise analysis showed that the overall isolation rate of the organisms from BACTEC bottles was higher compared to BACTALERT. Also BACTEC showed less average TTD compared to BACTALERT for Pseudomonas aeruginosa, Streptococcus and candida albicans but for E. coli and S. aureus BACTALERT showed earlier detection. To conclude, storage of the inoculated bottles at room temperature gave optimal recovery of the organisms for both BACTEC and BACTALERT systems, if delayed entry is inevitable.
Impacts of climate warming on hybrid zone movement: Geographically diffuse and biologically porous “species borders”

Abstract The ecology and evolutionary biology of insect–plant associations has realized extensive attention, especially during the past 60 years. The classifications (categorical designations) of continuous variation in biodiversity, ranging from global patterns (e.g., latitudinal gradients in species richness/diversity and degree of herbivore feeding specialization) to localized insect–plant associations that span the biospectrum from polyphenisms, polymorphisms, biotypes, demes, host races, to cryptic species, remain academically contentious. Semantic and biosystematic (taxonomical) disagreements sometimes detract from more important ecological and evolutionary processes that drive diversification, the dynamics of gene flow and local extinctions. This review addresses several aspects of insect specialization, host‐associated divergence and ecological (including “hybrid”) speciation, with special reference to the climate warming impacts on species borders of hybridizing swallowtail butterflies (Papilionidae). Interspecific hybrid introgression may result in collapse of multi‐species communities or increase species numbers via homoploid hybrid speciation. We may see diverging, merging, or emerging genotypes across hybrid zones, all part of the ongoing processes of evolution. Molecular analyses of genetic mosaics and genomic dynamics with “divergence hitchhiking”, combined with ecological, ethological and physiological studies of “species porosity”, have already begun to unveil some answers for some important ecological/evolutionary questions. (i) How rapidly can host‐associated divergence lead to new species (and why doesn't it always do so, e.g., resulting in “incomplete” speciation)? (ii) How might “speciation genes” function, and how/where would we find them? (iii) Can oscillations from specialists to generalists and back to specialists help explain global diversity in herbivorous insects? (iv) How could recombinant interspecific hybridization lead to divergence and speciation? From ancient phytochemically defined angiosperm affiliations to recent and very local geographical mosaics, the Papilionidae (swallowtail butterflies) have provided a model for enhanced understanding of ecological patterns and evolutionary processes, including host‐associated genetic divergence, genomic mosaics, genetic hitchhiking and sex‐linked speciation genes. Apparent homoploid hybrid speciation in Papilio appears to have been catalyzed by climate warming‐induced interspecific introgression of some, but not all, species diagnostic traits, reflecting strong divergent selection (discordant), especially on the Z (= X) chromosome. Reproductive isolation of these novel recombinant hybrid genotypes appears to be accomplished via a delayed post‐diapause emergence or temporal isolation, and is perhaps aided by the thermal landscape. Changing thermal landscapes appear to have created (and may destroy) novel recombinant hybrid genotypes and hybrid species.
A Taxonomy of Virtualization Security Issues in Cloud Computing Environments

Objectives: To identify the main challenges and security issues of virtualization in cloud computing environments. It reviews the alleviation techniques for improving the security of cloud virtualization systems. Methods/ Statistical Analysis: Virtualization is a fundamental technology for cloud computing, and for this reason, any cloud vulnerabilities and threats affect virtualization. In this study, the systematic literature review is performed to find out the vulnerabilities and risks of virtualization in cloud computing and to identify threats, and attacks result from those vulnerabilities. Furthermore, we discover and analyze the effective mitigation techniques that are used to protect, secure, and manage virtualization environments. Findings: Thirty vulnerabilities are identified, explained, and classified into six proposed classes. Furthermore, fifteen main virtualization threats and attacks are defined according to exploited vulnerabilities in a cloud environment. Application/Improvements: A set of common mitigation solutions are recognized and discovered to alleviate the virtualization security risks. These reviewed techniques are analyzed and evaluated according to five specified security criteria. Keywords: Challenges, Cloud Computing, Security, Taxonomy, Virtualization
Caracterização das fibras musculares do músculo Semitendinosus de bezerros mestiços Angus-Nelore recebendo somatotropina bovina recombinante (rbST) até a desmama

The objective of this experiment was to study the effect of the recombinant bovine somatotropin (rbST) on the percentage distribution and diameter of semitendinosus muscle fibers. Thirty-six ½ Angus-Nellore crossbred bull calves, 63 ± 17 days old and weighting 76.8 ± 14.7 kg, raised in Brachiaria decumbens pastures and creep fed, were assigned to one of two treatments until weaning (217 days): eighteen calves received 1.4 mg/kg of rbST (Boostin®) every 14 days and eighteen control calves received saline solution. Muscle samples were taken at 117 trough biopsy and at 217 days old when five animals from each treatment were slaughtered. The rbST-treated calves had greater fast-twich-glycolytic (FG) fiber diameter than control ones at 117 days and tended to have great diameter at 217 days. No differences in fast-twich- glycolytic-oxidative (FOG) and slow-twich-oxidative (SO) diameter and FG, FOG and SO percentage distribution were observed at 117 and 217 days. Despite the rbST treatment, there was a significant enlarge in SO and FOG fibers diameter, a tendency for increase in FG fibers diameter, an increase in SO and reduction in FG percentage distribution from 117 to 217 days. The somatotropin administration caused a greater hypertrophy of the white fast twitch muscle fibers in creep fed bull calves, but did not affect the percentage distribution of semitendinosus muscle fibers.