bluuebunny/crossref_metadata_2025 huggingface dataset:
Experimental Investigation on Novel Parabolic Trough Collector
Authors: Lingaiah G. , Sridhar K.
Published: May 2021

With the increase in demand of the cleaner energy, the use of renewablesources of energy is increasing day by day and solar energy is the answerto it. Several methods are used to harness solar thermal energy among themConcentrating Parabolic Collectors (CPC) are widely used. In this paper,A novel CPC is made, and an experimental study is carried out to findout its efficiency in manual and automated single axis tracking mode usingwater as working fluid. It was observed that the automated tracking methodoutperforms the manual tracking method with efficiency reaching up to 48%as compared to 42% in the later. Methods to improve efficiency of the CPCare not used in this study. CPC was found suitable for domestic use.
Most Valuable Player Algorithm Based State Estimation for Energy Systems
Authors: Shanmugapriya S. , Maharajan D.
Published: May 2021

State estimation (SE) processes the real-time measurements and providesdatabase to energy control centre for safety control of energy systems. Tradi-tionally Weighted Least Square (WLS) and Weighted Least Absolute Value(WLAV) based algorithms have been suggested for SE but the developmentof very fast computers and parallel processing enable the system engineers tothink of employing the computationally inefficient evolutionary algorithms,which are known to be robust and stable, in solving SE problems. Thispaper suggests a most valuable player algorithm based SE involving WLSand WLAV objectives one at a time, and presents results on four IEEE testsystems for illustrating its superiority.
Research on Multi-level Cooperative Detection of Power Grid Dispatching Fault Based on Artificial Intelligence Technology
Authors: Dou Jianzhong , Liu Zhicheng , Xiong Wei , Chen Hongzhong , Wu Yifei , Sun Tao
Published: May 2021

The traditional power grid dispatching fault detection method has low detection efficiency and accuracy due to the lack of uncertainty in modeling. Aiming at the above problems, a multi-level cooperative fault detection method based on artificial intelligence technology is studied. After the preliminary processing of the dispatching data, the multilevel fault detection architecture is established. BP neural network is used to realize the multi-level cooperative detection of scheduling faults in the multi-level detection architecture. Through simulation experiment, it is proved that the failure rate and false detection rate of the proposed method are far lower than those of traditional methods, and the method has high stability and advantages.
Optimal Design of an On-Grid MicroGrid Considering Long-Term Load Demand Forecasting: A Case Study
Authors: Han Bing , Li Mingxuan , Song Jingjing , Li Junjie , Faraji Jamal
Published: May 2021

In this article, an optimal on-grid MicroGrid (MG) is designed consideringlong-term load demand prediction. Multilayer Perceptron (MLP) ArtificialNeural Network (ANN) is used for time-series load prediction. Yearlydemand growth has also been considered in the optimization process based onthe forecasted load profile. Two different case studies are performed with theforecasted and historical load profiles, respectively. According to the results,by considering the predicted load profile, realistic results of net present cost(NPC), cost of energy (COE), and MG configuration would be achieved. TheNPC and COE are obtained as 566,008$ and 0.0240 $/kWh, respectively.It is also demonstrated that utilizing battery storage systems (BSSs) is not economic in the proposed approach. The introduced MG also produces loweremissions compared to the system with the historical load profile. In thisregard, 563,909 kg of CO2 is produced over the optimization year, whichis 35,623 kg lower than the case with no load growth rate. According to thesensitivity analysis results, when the inflation rate increases from 18.16 % to32.36 %, the COE’s value rises to 0.021 USD/kWh accordingly. In contrast,the NPC of the system decreases significantly from above 400 × 103 USD toabout 200 × 103 USD as the inflation rate increases from 18.16 to 32.36.
On unit group of finite semisimple group algebras of non-metabelian groups of order 108
Authors: MİTTAL Gaurav , SHARMA Rajendra. K.
Published: May 2021

In this paper, we characterize the unit groups of semisimple group algebras $\mathbb{F}_qG$ of non-metabelian groups of order $108$, where $F_q$ is a field with $q=p^k$ elements for some prime $p > 3$ and positive integer $k$. Up to isomorphism, there are $45$ groups of order $108$ but only $4$ of them are non-metabelian. We consider all the non-metabelian groups of order $108$ and find the Wedderburn decomposition of their semisimple group algebras. And as a by-product obtain the unit groups.
Spatial shifts of the reflective light beam off the metasurface of hyperbolic crystals
Authors: Peng Hongyan , Wang Xuan-Zhang
Published: May 2021

We investigated Goos–Hänchen (GH) and Imbert–Fedorov (IF) shifts of the reflective beam from a uniaxial hyperbolic crystal (HC) with a metasurface (MS) that is a subwavelength rectangular-grating layer. Due to the optical axis of this MS normal to that of the HC, this structure is similar to a biaxial HC for the reflective beam. We obtained analytical expressions of reflective beam for any polarized incident light beam and then derived the GH and IF shifts of the relevant reflective beam. Based on the hexagonal boron nitride crystal (hBN), we numerically simulated shift spectra of the reflective beam for differently polarized incident beams. We compared the results obtained from this structure with those for the bulk hBN or MS layer with infinite thickness. We found that the shift spectra from this structure resemble neither those from the bulk hBN nor those from the MS layer so that they are much more complicated than those in the two extreme cases. The effect of the MS coupling with the hBN substrate is very remarkable. First, both the GH and IF shifts are evidently enlarged, especially the IF shift. Second, the shift spectra exhibit oscillation behavior and sharp shift peaks or dips. Finally, the MS brings out the nonreciprocity of the two shifts for the circularly polarized incident beams.
Optimization and visualization of phase modulation with filtered and amplified maximal-length sequence for SBS suppression in a short fiber system: a theoretical treatment
Authors: Yang Yifeng , Li Binglin , Liu Meizhong , Huang Xuchen , Feng Yutong , Cheng Dan , He Bing , Zhou Jun , Nilsson Johan
Published: May 2021

We use a model to investigate both the temporal and spectral characteristics of a signal lightwave which has been spectrally broadened through phase modulation with a maximal-length sequence (MLS), which is a common type of pseudo-random bit sequence. The enhancement of the stimulated Brillouin scattering (SBS) threshold of the modulated lightwave in a fiber system is evaluated by numerically simulating the coupled three-wave SBS interaction equations. We find that SBS can build up on a nanosecond-level time scale in a short fiber, which can reduce the SBS suppressing capability of MLS modulation waveforms with GHz-level clock rate, if the sub-sequence ("run") lengths with the same symbol (zero or one) of the MLS extend over several nanoseconds. To ensure the SBS buildup is perturbed and thus suppressed also during these long sub-sequences, we introduce a low-pass filter to average the signal over several bits so that the modulation waveform changes gradually even during long runs and amplify the RF modulation waveforms to the level required for sufficient spectral broadening and carrier suppression of the optical signal. We find that the SBS suppression depends non-monotonically on the parameters of the filtered and amplified MLS waveform such as pattern length, modulation depth, and the ratio of low-pass filter cutoff frequency to clock rate for maximum SBS mitigation. We optimize the SBS suppression through numerical simulations and discuss it in terms of the temporal and spectral characteristics of the lightwave and modulation waveform using derived analytical expressions and numerical simulations. The simulations indicate that the normalized SBS threshold reaches a maximum for a RMS modulation depth of 0.56π and a ratio of filter cutoff frequency to clock rate of 0.54 and that MLS9 is superior to other investigated patterns.
Sensitivity to expression levels underlies differential dominance of a putative null allele of the Drosophila tßh gene in behavioral phenotypes
Authors: Damrau Christine , Colomb Julien , Brembs Björn
Published: May 2021

The biogenic amine octopamine (OA) and its precursor tyramine (TA) are involved in controlling a plethora of different physiological and behavioral processes. The tyramine-ß-hydroxylase (tßh) gene encodes the enzyme catalyzing the last synthesis step from TA to OA. Here, we report differential dominance (from recessive to overdominant) of the putative null tßhnM18 allele in 2 behavioral measures in Buridan’s paradigm (walking speed and stripe deviation) and in proboscis extension (sugar sensitivity) in the fruit fly Drosophila melanogaster. The behavioral analysis of transgenic tßh expression experiments in mutant and wild-type flies as well as of OA and TA receptor mutants revealed a complex interaction of both aminergic systems. Our analysis suggests that the different neuronal networks responsible for the 3 phenotypes show differential sensitivity to tßh gene expression levels. The evidence suggests that this sensitivity is brought about by a TA/OA opponent system modulating the involved neuronal circuits. This conclusion has important implications for standard transgenic techniques commonly used in functional genetics.
Active head rolls enhance sonar-based auditory localization performance
Authors: Wijesinghe Lakshitha P. , Wohlgemuth Melville J. , So Richard H. Y. , Triesch Jochen , Moss Cynthia F. , Shi Bertram E.
Published: May 2021

Animals utilize a variety of active sensing mechanisms to perceive the world around them. Echolocating bats are an excellent model for the study of active auditory localization. The big brown bat (Eptesicus fuscus), for instance, employs active head roll movements during sonar prey tracking. The function of head rolls in sound source localization is not well understood. Here, we propose an echolocation model with multi-axis head rotation to investigate the effect of active head roll movements on sound localization performance. The model autonomously learns to align the bat’s head direction towards the target. We show that a model with active head roll movements better localizes targets than a model without head rolls. Furthermore, we demonstrate that active head rolls also reduce the time required for localization in elevation. Finally, our model offers key insights to sound localization cues used by echolocating bats employing active head movements during echolocation.
Predicting mean ribosome load for 5’UTR of any length using deep learning
Authors: Karollus Alexander , Avsec Žiga , Gagneur Julien
Published: May 2021

The 5’ untranslated region plays a key role in regulating mRNA translation and consequently protein abundance. Therefore, accurate modeling of 5’UTR regulatory sequences shall provide insights into translational control mechanisms and help interpret genetic variants. Recently, a model was trained on a massively parallel reporter assay to predict mean ribosome load (MRL)—a proxy for translation rate—directly from 5’UTR sequence with a high degree of accuracy. However, this model is restricted to sequence lengths investigated in the reporter assay and therefore cannot be applied to the majority of human sequences without a substantial loss of information. Here, we introduced frame pooling, a novel neural network operation that enabled the development of an MRL prediction model for 5’UTRs of any length. Our model shows state-of-the-art performance on fixed length randomized sequences, while offering better generalization performance on longer sequences and on a variety of translation-related genome-wide datasets. Variant interpretation is demonstrated on a 5’UTR variant of the gene HBB associated with beta-thalassemia. Frame pooling could find applications in other bioinformatics predictive tasks. Moreover, our model, released open source, could help pinpoint pathogenic genetic variants.
Risk of miscarriage in women with chronic diseases in Norway: A registry linkage study
Authors: Magnus Maria C. , Morken Nils-Halvdan , Wensaas Knut-Arne , Wilcox Allen J. , Håberg Siri E.
Published: May 2021

Background

Increased risk of miscarriage has been reported for women with specific chronic health conditions. A broader investigation of chronic diseases and miscarriage risk may uncover patterns across categories of illness. The objective of this study was to study the risk of miscarriage according to various preexisting chronic diseases.

Methods and findings

We conducted a registry-based study. Registered pregnancies (n= 593,009) in Norway between 2010 and 2016 were identified through 3 national health registries (birth register, general practitioner data, and patient registries). Six broad categories of illness were identified, comprising 25 chronic diseases defined by diagnostic codes used in general practitioner and patient registries. We required that the diseases were diagnosed before the pregnancy of interest. Miscarriage risk according to underlying chronic diseases was estimated as odds ratios (ORs) using generalized estimating equations adjusting for woman’s age. The mean age of women at the start of pregnancy was 29.7 years (SD 5.6 years). We observed an increased risk of miscarriage among women with cardiometabolic diseases (OR 1.25, 95% CI 1.20 to 1.31;p-value <0.001). Within this category, risks were elevated for all conditions: atherosclerosis (2.22; 1.42 to 3.49;p-value <0.001), hypertensive disorders (1.19; 1.13 to 1.26;p-value <0.001), and type 2 diabetes (1.38; 1.26 to 1.51;p-value <0.001). Among other categories of disease, risks were elevated for hypoparathyroidism (2.58; 1.35 to 4.92;p-value 0.004), Cushing syndrome (1.97; 1.06 to 3.65;p-value 0.03), Crohn’s disease (OR 1.31; 95% CI: 1.18 to 1.45;p-value 0.001), and endometriosis (1.22; 1.15 to 1.29;p-value <0.001). Findings were largely unchanged after mutual adjustment. Limitations of this study include our inability to adjust for measures of socioeconomic position or lifestyle characteristics, in addition to the rareness of some of the conditions providing limited power.

Conclusions

In this registry study, we found that, although risk of miscarriage was largely unaffected by maternal chronic diseases, risk of miscarriage was associated with conditions related to cardiometabolic health. This finding is consistent with emerging evidence linking cardiovascular risk factors to pregnancy complications.
Breeding and hibernation of captive meadow jumping mice (Zapus hudsonius)
Authors: Brem Ethan A. , McNulty Alyssa D. , Israelsen William J.
Published: May 2021

Hibernating mammals exhibit unique metabolic and physiological phenotypes that have potential applications in medicine or spaceflight, yet our understanding of the genetic basis and molecular mechanisms of hibernation is limited. The meadow jumping mouse, a small North American hibernator, exhibits traits–including a short generation time–that would facilitate genetic approaches to hibernation research. Here we report the collection, captive breeding, and laboratory hibernation of meadow jumping mice. Captive breeders in our colony produced a statistically significant excess of male offspring and a large number of all-male and all-female litters. We confirmed that short photoperiod induced pre-hibernation fattening, and cold ambient temperature facilitated entry into hibernation. During pre-hibernation fattening, food consumption exhibited non-linear dependence on both body mass and temperature, such that food consumption was greatest in the heaviest animals at the coldest temperatures. Meadow jumping mice exhibited a strong circadian rhythm of nightly activity that was disrupted during the hibernation interval. We conclude that it is possible to study hibernation phenotypes using captive-bred meadow jumping mice in a laboratory setting.
Easyreporting simplifies the implementation of Reproducible Research layers in R software
Authors: Righelli Dario , Angelini Claudia
Published: May 2021

During last years “irreproducibility” became a general problem in omics data analysis due to the use of sophisticated and poorly described computational procedures. For avoiding misleading results, it is necessary to inspect and reproduce the entire data analysis as a unified product. Reproducible Research (RR) provides general guidelines for public access to the analytic data and related analysis code combined with natural language documentation, allowing third-parties to reproduce the findings. We developed easyreporting, a novel R/Bioconductor package, to facilitate the implementation of an RR layer inside reports/tools. We describe the main functionalities and illustrate the organization of an analysis report using a typical case study concerning the analysis of RNA-seq data. Then, we show how to use easyreporting in other projects to trace R functions automatically. This latter feature helps developers to implement procedures that automatically keep track of the analysis steps. Easyreporting can be useful in supporting the reproducibility of any data analysis project and shows great advantages for the implementation of R packages and GUIs. It turns out to be very helpful in bioinformatics, where the complexity of the analyses makes it extremely difficult to trace all the steps and parameters used in the study.
Patient, hospital and country-level risk factors of all-cause mortality among patients with chronic heart failure: Prospective international cohort study
Authors: Pongiglione Benedetta , Torbica Aleksandra , Gale Chris P. , Tavazzi Luigi , Vardas Panos , Maggioni Aldo P.
Published: May 2021

Background

Although many studies have described patient-level risk factors for outcomes in heart failure (HF), health care structural determinants remain largely unexplored. This research reports patient-, hospital- and country-level characteristics associated with 1-year all-cause mortality among patients with chronic HF, and investigates geographic and hospital variation in mortality.

Methods and findings

We included 9,277 patients with chronic HF enrolled between May 2011 and November 2017 in the prospective cohort study European Society of Cardiology Heart Failure Long Term registry across 142 hospitals, located in 22 countries. Mean age of the selected outpatients was 65 years (sd 13.2) and 28% were female. The all-cause 1-year mortality rate per 100 person-years was 7.1 (95% confidence interval (CI) 6.6–7.7), and varied between countries (median 6.8, IQR 5.6–11.2) and hospitals (median 7.8, IQR 5.2–12.4). Mortality was associated with age (incidence rate ratio 1.03, 95% CI 1.02–1.04), diabetes mellitus (1.37, 1.15–1.63), peripheral artery disease (1.56, 1.27–1.92), New York Heart Association class III/IV (1.91, 1.60–2.30), treatment with angiotensin-converting enzyme inhibitor and angiotensin receptor antagonists (0.71, 0.57–0.87) and HF clinic (0.64, 0.46–0.89). No other hospital-level characteristics, and no country-level healthcare characteristics were associated with 1-year mortality, with case-mix standardised variance between countries being very low (1.83e-06) and higher for hospitals (0.372).

Conclusions

All-cause mortality at 1 year among outpatients with chronic HF varies between countries and hospitals, and is associated with patient characteristics and the availability of hospital HF clinics. After full adjustment for clinical, hospital and country variables, between-country variance was negligible while between-hospital variance was evident.
Quantification of training load distribution in mixed martial arts athletes: A lack of periodisation and load management
Authors: Kirk Christopher , Langan-Evans Carl , Clark David R. , Morton James P.
Published: May 2021

The aim of this study was to quantify typical training load and periodisation practices of MMA athletes. MMA competitors (n = 14; age = 22.4 ± 4.4 years; body mass = 71.3 ± 7.7 kg; stature = 171 ±9.9 cm) were observed during training for 8 consecutive weeks without intervention. Seven athletes were training for competitive bouts whilst the remaining 7 were not. Daily training duration, intensity (RPE), load (sRPE and segRPE), fatigue (short questionnaire of fatigue) and body region soreness (CR10 scale) were recorded. Using Bayesian analyses (BF10≥3), data demonstrate that training duration (weekly mean range = 3.9–5.3 hours), sRPE (weekly mean range = 1,287–1,791 AU), strain (weekly mean range = 1,143–1,819 AU), monotony (weekly mean range = 0.63–0.83 AU), fatigue (weekly mean range = 16–20 AU) and soreness did not change within or between weeks. Between weeks monotony (2.3 ± 0.7 AU) supported little variance in weekly training load. There were no differences in any variable between participants who competed and those who did not with the except of the final week before the bout, where an abrupt step taper occurred leading to no between group differences in fatigue. Training intensity distribution corresponding to high, moderate and low was 20, 33 and 47%, respectively. Striking drills accounted for the largest portion of weekly training time (20–32%), with MMA sparring the least (2–7%). Only striking sparring and wrestling sparring displayed statistical weekly differences in duration or load. Athletes reported MMA sparring and wrestling sparring as high intensity (RPE≥7), BJJ sparring, striking sparring and wrestling drills as moderate intensity (RPE 5–6), and striking drills and BJJ drills as low intensity (RPE≤4). We conclude that periodisation of training load was largely absent in this cohort of MMA athletes, as is the case within and between weekly microcycles.
Simple fluorescence optosensing probe for spermine based on ciprofloxacin-Tb3+ complexation
Authors: Ngoc Nghia Nguyen , The Huy Bui , Thanh Phong Pham , Han Jin Sol , Kwon Dae Hyun , Lee Yong-Ill
Published: May 2021

We developed a facile detection method of spermine based on the fluorescence (FL) quenching of the ciprofloxacin-Tb3+complex, which shows astrong green emission. Ciprofloxacin (CP) makes efficient bondings to Tb3+ion as a linker molecule through carboxylic and ketone groups to form a kind of lanthanide coordination polymer. The addition of spermine that competes with Tb3+ions for the interaction with CP due to its positive charge brings about weakened coordination linkage of CP and Tb3+. The probe exhibited high sensitivity, selectivity, and good linearity in the range of 2–180 μM with a low limit of detection of 0.17 μM. Moreover, we applied this method on the paper strip test (PST), along with the integration of a smartphone and Arduino-based device. The practical reliability of the developed probe was evaluated on human serum samples with acceptable analytical results.
Neutrophil gelatinase-associated lipocalin as a biomarker for short-term outcomes among trauma patients: A single-center observational study
Authors: Minami Sakura , Doi Tomoki , Abe Takeru , Takeuchi Ichiro
Published: May 2021

Background

Urinary biomarkers for organ dysfunction could predict the outcomes of severe trauma patients. However, the use of neutrophil gelatinase-associated lipocalin (NGAL) as a biomarker of trauma is not well studied.

Objectives

To evaluate the association between the short-term prognosis of trauma patients and NGAL levels.

Methods

We conducted a single center study and compared predictive performances between NGAL levels and the trauma severity.

Results

A total of 104 patients were included in the study. Patients were divided into two groups based on ISS score of 16. There was no significant difference in patient characteristics based on trauma severity. However, the lactate level was significantly higher in the more severe group. There was a significant association between urinary NGAL levels and trauma severity indicators, such as intensive care unit stay (ICU) (p = 0.005) and emergency care unit (ECU) stay (p = 0.049). In addition, receiver operating curve analysis showed that as a predictor, NGAL could be used for detecting severity with moderate precision, especially for short-term outcomes (specificity 70.6 for ICU and 69.0 for ECU stay).

Conclusion

In this study, we revealed that the level of NGAL could predict the degree of invasiveness in trauma patients with moderate precision and estimate the duration of treatment during the acute phase. It is necessary to examine the validity of the findings of this study using a prospective, cohort, and multi-center collaborative study design.
Interactions between sympatric invasive European fire ants (Myrmica rubra) and blacklegged ticks (Ixodes scapularis)
Authors: Guarnieri Lucy D. , McBride Sara E. , Groden Eleanor , Gardner Allison M.
Published: May 2021

The blacklegged tick (Ixodes scapularis) and the invasive European fire ant (Myrmica rubra) are both expanding throughout their sympatric range in coastal New England.Ixodes scapularisis the primary vector of the bacteriumBorrelia burgdorferi, which is the causative agent of Lyme disease, and Mount Desert Island, Maine, home to Acadia National Park, currently is affected by a high Lyme disease burden. Ticks have many natural predators, including ants, although no previous studies have investigated interactions between these two species. To test the hypothesis that the presence ofM.rubraaltersI.scapularisabundance, we collected ticks by drag-sampling at eight ant-infested sites and eight uninfested control sites in Acadia National Park. We found that nymph density was significantly higher at ant-infested sites, while larval density was significantly higher at control sites. In addition, we conducted a laboratory bioassay to measureM.rubraaggression againstI.scapularislarvae, nymphs, and adults andDermacentor variabilisadults, and found that ant aggression was significantly higher againstD.variabilisadults thanI.scapularisadults. Our findings support the hypothesis thatM.rubrahas divergent effects acrossI.scapularislife stages, and we discuss possible ecological mechanisms, including optimal microclimate and predation, that could promote density of nymphs while inhibiting density of larvae.
Blame the Tools: Crafty Robots, Well-behaved Implements and Disobedient Devices
Authors: Durling David
Published: May 2021

Blame the Tools: Crafty Robots, Well-behaved Implements and Disobedient Devices

Online symposium, Chelsea College of Art, UAL, London, UK, 8 October 2020
Sustainable what…? The role of corporate websites in communicating material innovations in the luxury fashion industry
Authors: Luo Shuchan , Henninger Claudia E. , Le Normand Aurelie , Blazquez Marta
Published: May 2021

COVID-19 has heightened consumers environmental and social consciousness in the luxury industry, which fosters luxury consumers’ appetite for sustainable luxury, thus, puts renewed interest and pressure on the industry to act upon. Past research highlights that sustainability and luxury may be paradoxical, due to a lack of information on material adoption. Yet, sustainable luxury products are positively perceived by consumers, who see luxury and sustainability as compatible. Material innovations can enhance this perception further, which requires careful communication strategies. Sustainability communication enables companies to broadcast material innovations through a manifold channel. Luxury brands predominantly communicate these innovations through official websites, as it is often the first touchpoint between consumers and the brand. This article addresses a knowledge gap on how to communicate sustainable luxury in an effective and efficient manner, by focusing on material innovations that are increasing in popularity in the sector. This article explores the role of corporate websites in communicating material innovations based on two luxury brands. Data are extracted from company websites to perform a qualitative content analysis. Data highlight that terminologies used affect information accessibility. Sustainable information can be a key selling point for consumers that are more environmentally, thus it is vital to provide this information in a straightforward manner. Data may not be generalized from only two case studies, yet it provides insights that can guide future research.
A ATIVIDADE JURISDICIONAL NA JUSTIÇA DO TRABALHO: A SENTENÇA UBER
Authors: Moraes Filho José Filomeno de , Castello Branco Carolina Nobre
Published: May 2021

Este artigo tem como finalidade analisar sentença judicial proferida pela 33ª vara do trabalho no Brasil que reconheceu a existência de relação de emprego entre ex-motorista e a empresa UBER. Mediante a análise da atividade jurisdicional no constitucionalismo contemporâneo, procurou-se compreender o fenômeno do ativismo judicial para então estudar o a decisão judicial, permitindo-se a compreensão dos critérios de decisão. A pesquisa se desenvolve pelo método dialético, a partir de análise documental da sentença judicial confrontada com os argumentos teóricos encontrados em artigos científicos e doutrinas nacionais e estrangeiras, em especial a doutrina de Friedrich Müller. Como resultado, concluiu-se que a decisão, apesar de coerente com a proteção esperada da Justiça do Trabalho, extrapolou os critérios jurídicos de argumentação e interpretação, sobretudo quanto aos limites do poder jurisdicional no exercício de sua função no Estado Democrático de Direito.
O topônimo Matipó
Authors: Carvalho Simone Dornelas de , Cordeiro Maryelle Joelma
Published: May 2021

Neste artigo é apresentada uma análise sobre o nome próprio Matipó, presente no estado de Minas Gerais. Seguimos uma abordagem linguística que envolve a relação entre a toponímia, a história e a memória social, sob a égide da Toponomástica, ciência linguística que se dedica a estudar a origem e os aspectos da motivação e do significado dos nomes próprios de lugares – os topônimos. Com base nos estudos etnográficos de Barbosa (1951), de Senna (1937), de Oiliam José (1965), de Dick e Seabra (2012) e no modelo taxonômico de classificação toponímica, de Dick (1990a), analisamos os aspectos linguísticos e a origem do topônimo Matipó para chegarmos a uma provável significação, diferente daquela que é comumente difundida por órgãos governamentais e por seus habitantes.
¿Qué estamos haciendo?
Authors: Gerbaudo Analía Isabel
Published: May 2021

Editorial del Nº 13 de El taco en la brea
Lepisma saccharina
Authors: Prósperi Germán Osvaldo
Published: May 2021

La historia de la metafísica occidental, según una antigua tradición teológica, es una historia del Libro. En la segunda mitad del siglo XX, esta cuestión ha sido retomada entre otros por Jacques Derrida y Maurice Blanchot. El objetivo de este artículo es demostrar la siguiente tesis: la operación específica de la literatura con relación al Libro es análoga a la de un insecto llamado lepisma saccharina en relación con el papel. Esta analogía me permitirá mostrar que la perversión o la dislocación que efectúa la literatura en la estructura significativa del Libro va incluso más lejos que la gramatología derridiana.
El fantasma del Che
Authors: Crespi Maximiliano
Published: May 2021

Este artículo desarrolla un análisis crítico de El Che en la frontera (2016), la obra teatral póstuma del escritor y dramaturgo argentino David Viñas (1927‒2011). Analizada en relación con el resto de su dramaturgia y apoyada con textos de intervención que Viñas publicó en la década del setenta y el ochenta, la lectura de esta pieza echa luz sobre el persistente y deliberado trabajo de crítica y desarticulación de la construcción mitológica de la figura del Che Guevara impulsada y naturalizada desde la «mala fe» del discurso progresista posrevolucionario en Latinoamérica.
Evaluation of Flying Ad Hoc Network Topologies, Mobility Models, and IEEE Standards for Different Video Applications
Authors: QasMarrogy Ghassan
Published: May 2021

Nowadays, drones became very popular with the enhancement of the technological progress of moving devices with a connection to each other, known as Flying Ad Hoc Network (FANET). It is used in most worldwide necessary life scenarios such as video recording, search and rescue, military missions, moving items between different areas, and many more. This leads to the necessity to evaluate different network strategies between these flying drones, which are essential to improve their quality of performance in the field. Several challenges must be addressed to effectively use FANET, to provide stable and reliable transmission for different types of data during vast changing topologies, such as different video sizes, different types of mobility models, recent Wireless Fidelity standards, types of routing protocols used, security problems, and many more. In this paper, a fully comprehensive analysis of FANET will be done to evaluate and enhance these challenges that concern different video types, mobility models, and IEEE 802.11n standards for best performance, by measuring throughput, retransmission attempt, and delay metrics. The result shows that Gauss–Markov mobility model gives the highest result using Ad Hoc On-Demand Vector and lowest delay, whereas for retransmission attempts, 2.4 GHz frequency has the lowest as it can reach more coverage area than 5 GHz.
Immunization Punctuality in The Achievement of Complete Basic Immunization for Babies Age 12-22 Months in Semarang
Authors: Sriatmi Ayun , Kusumastuti Wulan
Published: May 2021

Background : Immunization is an effort that deliberately provides immunity to infants/children to avoid certain diseases. Immunization is important because it affects the growth of infants and children, when administered within the stipulated time period. The facts show that many parents do not immunize on schedule and tend to postpone it. The objectives of the study analyzed the punctuality of complete basic immunization in infants aged 12 to 13 months (“Baduta”) in Semarang.Methods: This research is an observational study with cross sectional design. The population means all Baduta in Semarang, with sample of 689 Baduta from 37 Puskesmas (Society Health Center) taken randomly. Baduta immunization status is obtained from the KIA Book.Results: The results show 98.25% of Baduta have received basic immunization although not all yet complete. Immunization of measles is the most immunization which have not been received yet by Baduta (13.35%),followed by Polio-4 (8.27%) and DPT / HB / HiB-3 (7.4%). Sources of information on immunization are generally obtained from health workers and cadres.Conclusion : Immunization HB-0 is given at the most punctual (96.28%), followed by DPT / HB / HiB-3 (90.13%) and Polio-4 (85.44%), while immunization of measle s has the lowest punctuality (41.04%), followed by BCG immunization (61.5%).
The Influence Of Organizational Factors on Compliance With The Standard Planning Process in Primary Health Care
Authors: Sriatmi Ayun , Jati Sutopo Patria , Fatmasari Eka Yunila
Published: May 2021

Background: Planning becomes the most important management function because it arranges all management activities. Non-compliance with the standards of the planning process has an impact on the quality of planning that is unable to bridge needs which ultimately lead to dissatisfaction. PHC as public organizations must meet public service standards. Organizational factors are determinants of organizational performance as they relate to the provision and arrangement of vaious resourcesAims: The purpose of study was to determine affect of organizational factors on compliance with the standards of PHC planning process.Methods: An observational study with cross sectional design. All 56 PHC in the 2 districts in Central Java province (Semarang and Kudus) became the samples. The respondents are officer in charge of the PHC planning programme.. Data collection by interviews using questionnaires and observations. Data were analyzed descriptively and statistically.Results: Only 55.4% of PHCs comply with standard planning process. Weaknesses and inconsistencies still occur at every stage, especially with regard to inaccuracy of time, incomplete and inappropriate data, and low understanding of members of the team. Study shows that the aspect of manpower, infrastructure, organizing and monitoring-evaluation function are positively correlated with adherence to standard planning processes, where monitoring-evaluation factors are the dominant factor.Conclusion: All the gaps identified as the cause of puskesmas non-compliance to the standard planning process can be overcome through increasing staff commitment and competency by providing structured managerial training and routine socialization. Strengthening the monitoring-evaluation function needs to be pursued consistently to ensure the quality of the puskesmas planning process and the implementation of the work plan produced
RISK OF PRECANCEROUS CERVICAL LESIONS A DESCRIPTIVE STUDY AT SAPURAN HEALTH CENTER, WONOSOBO CITY
Authors: Farras Dinta Ayuda , Saraswati Lintang Dian , Ginandjar Praba , Wuryanto Arie
Published: May 2021

Cervical cancer is a disease that attacks women caused by Human Paplilloma Virus. Early sign of this cancer is discovery precancerous cervical lesions. Early prevention of knowing the presence of these lesionss is by early detection of the Visual Inspection Acetic Acid (VIA) method. This study was an observational research using case control design. Samples were taken is 126 people, 63 people as total cases and 63 peoples as control. using simple random sampling. Univariate data analyzed and presented in frequency distribution. Characteristics of respondents in this study include the majority of respondents responden were women above 35 years old (60,3%) and low education or lower than 9 years (78,6%). The results showed that 49,2%% had age of first sexual intercourse <20 years, 10,3% had number of sexual partner >1, and 58,3% respondent had ≥3 number of parity. Woman with number of parity ≥3 had precancerous cervical lesionss.
Digital game-based learning of information literacy: Effects of gameplay modes on university students’ learning performance, motivation, self-efficacy and flow experiences
Authors: Zou Di , Zhang Ruofei , Xie Haoran , Wang Fu Lee
Published: May 2021

Information literacy (IL) is important for university students. In this research, we developed a digital role-playing game to enhance students’ learning of IL and investigated the effects of gameplay modes on their learning performance, motivation, self-efficacy and flow experiences. A total of 90 students participated in the study and played the game in collaborative, competitive and solo modes. Their IL knowledge was measured through a post-test after they completed the game and associated exercises. Their motivation, self-efficacy and flow experiences were evaluated through a questionnaire survey. The results indicated statistically significant effects of the gameplay modes on the students’ learning performance, motivation, self-efficacy and flow experiences. The solo mode was inferior to the other two in all four aspects. The collaborative mode significantly outperformed the competitive mode in terms of enhancing learning performance and flow experience, while the competitive mode was significantly better in terms of promoting self-efficacy. These two modes were similarly effective in the dimension of motivation. Based on the results, we suggest that students play games in the collaborative or competitive modes when conditions permit. We also advise teachers to provide students with rich opportunities for discussion, collaboration and interaction and believe that an appropriate competitive atmosphere is important.
Simple mathematical modelling approaches to assessing the transmission risk of SARS-CoV-2 at gatherings
Authors: Champredon David , Fazil Aamir , Ogden Nicholas H
Published: May 2021

Background: Gatherings may contribute significantly to the spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). For this reason, public health interventions have sought to constrain unrepeated or recurrent gatherings to curb the coronavirus disease 2019 (COVID-19) pandemic. Unfortunately, the range of different types of gatherings hinders specific guidance from setting limiting parameters (e.g. total size, number of cohorts, the extent of physical distancing). Methods: We used a generic modelling framework, based on fundamental probability principles, to derive simple formulas to assess introduction and transmission risks associated with gatherings, as well as the potential efficiency of some testing strategies to mitigate these risks. Results: Introduction risk can be broadly assessed with the population prevalence and the size of the gathering, while transmission risk at a gathering is mainly driven by the gathering size. For recurrent gatherings, the cohort structure does not have a significant impact on transmission between cohorts. Testing strategies can mitigate risk, but frequency of testing and test performance are factors in finding a balance between detection and false positives. Conclusion: The generality of the modelling framework used here helps to disentangle the various factors affecting transmission risk at gatherings and may be useful for public health decision-making.
Serum antibody response in COVID-19-recovered patients who retested positive
Authors: Atchessi Nicole , Striha Megan , Edjoc Rojiemiahd , Abalos Christine , Lien Amanda , Waddell Lisa , Gabrani-Juma Imran , Thompson Emily , Dawson Thomas
Published: May 2021

Background: Research studies comparing antibody response from coronavirus disease 2019 (COVID-19) cases that retested positive (RP) using reverse transcription polymerase chain reaction (RT-PCR) and those who did not retest positive (NRP) were used to investigate a possible relationship between antibody response and retesting status. Methods: Seven data bases were searched. Research criteria included cohort and case-control studies, carried out worldwide and published before September 9, 2020, that compared the serum antibody levels of hospitalized COVID-19 cases that RP after discharge to those that did NRP. Results: There is some evidence that immunoglobulin G (IgG) and immunoglobulin M (IgM) antibody levels in RP cases were lower compared with NRP cases. The hypothesis of incomplete clearance aligns with these findings. The possibility of false negative reverse transcription polymerase chain reaction (RT-PCR) test results during viral clearance is also plausible, as concentration of the viral ribonucleic acid (RNA) in nasopharyngeal and fecal swabs fluctuate below the limits of RT-PCR detection during virus clearance. The probability of reinfection was less likely to be the cause of retesting positive because of the low risk of exposure where cases observed a 14 day-quarantine after discharge. Conclusion: More studies are needed to better explain the immune response of recovered COVID-19 cases retesting positive after discharge.
Disparition rapide de la grippe après la mise en œuvre de mesures d'atténuation de la COVID-19 à Hamilton, Ontario
Authors: Zhang Kevin , Misra Avika , Kim Patrick J , Moghadas Seyed M , Langley Joanne M , Smieja Marek
Published: May 2021

Contexte : Des mesures de santé publique, telles que la distanciation physique et la fermeture des écoles et des services non essentiels, ont été rapidement mises en œuvre au Canada pour freiner la propagation de la maladie à coronavirus 2019 (COVID-19). Nous avons cherché à étudier les conséquences des mesures d'atténuation pendant la vague printanière de COVID-19 sur l'incidence d'autres virus respiratoires confirmés en laboratoire à Hamilton, en Ontario. Méthodes : Tous les échantillons d'écouvillons nasopharyngés (n = 57 503) soumis à un dépistage systématique du virus respiratoire dans un laboratoire régional desservant tous les centres hospitaliers de soins de courte durée de Hamilton entre janvier 2010 et juin 2020 ont été examinés. Les tests de dépistage de la grippe A et B, du virus respiratoire syncytial, du métapneumovirus humain, du virus para-influenza I-III, de l'adénovirus et du rhinovirus/entérovirus ont été effectués systématiquement à l'aide d'un panel multiplex de virus respiratoires par réaction en chaîne par polymérase mis au point par le laboratoire. Un modèle de régression linéaire bayésien a été utilisé pour déterminer la tendance des taux de positivité de tous les échantillons de grippe au cours des 26 premières semaines de chaque année de 2010 à 2019. Le taux de positivité moyen de l'inférence bayésienne a été comparé au taux de positivité hebdomadaire des échantillons de grippe rapporté en 2020. Résultats : Le taux de positivité de la grippe en 2020 a fortement diminué après la mise en œuvre d’interventions relatives à la COVID-19 à l'échelle de la population. Les semaines 12–26 ont rapporté 0 % de positivité pour la grippe, à l'exception de 0,1 % rapporté la semaine 13. Conclusion : Les mesures de santé publique mises en œuvre pendant la pandémie de COVID-19 ont été associées à une incidence réduite d'autres virus respiratoires et devraient être envisagées pour atténuer la gravité de la grippe saisonnière et des pandémies dues à d'autres virus respiratoires.
Une éclosion du virus de l'hépatite C attribuée à l'utilisation de flacons à doses multiples dans une clinique de coloscopie de la région de Waterloo, en Ontario
Authors: Folkema Arianne , Wang Hsiu-Li , Wright Kristy , Hirji M Mustafa , Andonov Anton , Bromley Kathryn , Ludwig Chad , MacArthur Amy
Published: May 2021

Contexte : La transmission du virus de l’hépatite C (VHC) a été épidémiologiquement liée aux établissements de santé, en particulier aux établissements de soins externes, tels que les cliniques d’endoscopie et d’hémodialyse. Celles-ci ont été largement attribuées à des manquements concernant la prévention et le contrôle des infections. Objectif : Décrire les mesures de santé publique face à une épidémie du VHC détectée parmi les patients d’une clinique de coloscopie en Ontario, et souligner les risques liés à l’utilisation de flacons à doses multiples et la nécessité d’améliorer les pratiques de prévention et le contrôle des infections dans les établissements de soins externes. Méthodes : Le dépistage du VHC a été effectué chez les patients et le personnel qui ont fréquenté la clinique ou y ont travaillé en même temps que l’intervention du cas indexé. Les échantillons de sang des cas positifs ont été soumis à un séquençage viral. Des inspections de la clinique ont permis d’évaluer les pratiques de prévention et le contrôle des infections, et un examen des dossiers a été effectué pour cerner les mécanismes plausibles de transmission. Résultat : Au total, 38 % des patients qui ont subi des interventions à la clinique le même jour que le cas indexé a reçu un résultat positif pour le VHC. Le séquençage génétique a montré un haut degré de similarité dans la séquence génétique du VHC parmi les échantillons positifs pour le VHC. L’examen des dossiers et l’inspection des cliniques ont permis de désigner l’utilisation de flacons à doses multiples de médicaments d’anesthésie chez plusieurs patients comme mécanisme plausible de transmission. Conclusion : Les travailleurs de la santé, en particulier ceux qui se trouvent dans des établissements d’intervention ou chirurgicaux externes, devraient être vigilants et s’en tenir aux pratiques exemplaires de prévention et le contrôle des infections, notamment celles liées à l’utilisation de flacons à doses multiples, afin de prévenir la transmission d’infections hématogènes dans les établissements de soins de santé.