bluuebunny/crossref_metadata_2025 huggingface dataset:
Anisotropic Multimessenger Signals from Black Hole Neutrino-dominated Accretion Flows with Outflows in Binary Compact Object Mergers
Authors: Qi Yan-Qing , Liu Tong , Huang Bao-Quan , Wei Yun-Feng , Bu De-Fu
Published: January 2022

A black hole (BH) hyperaccretion system might be born after the merger of a BH and a neutron star (NS) or a binary NS (BNS). In the case of a high mass accretion rate, the hyperaccretion disk is in a state of neutrino-dominated accretion flow (NDAF) and emits numerous anisotropic MeV neutrinos. Only a small fraction of these neutrinos annihilates in the space outside of the disk and then launches ultrarelativistic jets that break away from the merger ejecta to power gamma-ray bursts. Mergers and their remnants are generally considered sources of gravitational waves (GWs), neutrinos, and kilonovae. Anisotropic neutrino emission and anisotropic high-velocity material outflows from central BH–NDAF systems can also trigger strong GWs and luminous disk-outflow-driven (DOD) kilonovae, respectively. In this paper, the anisotropic multimessenger signals from NDAFs with outflows, including DOD kilonovae, MeV neutrinos, and GWs, are presented. According to the results, the typical AB magnitude of the DOD kilonovae is lower than that of astronomical transient AT 2017gfo at the same distance, and it decreases with increasing viewing angles and its anisotropy is not sensitive to the outflow mass distribution but mainly determined by the velocity distribution. Since neutrinos with ≳10 MeV are mainly produced in the inner region of the disk, they will be dramatically deflected to a large viewing angle by relativity effects. Moreover, the strains of GWs induced by anisotropic neutrinos increase with increasing viewing angles. The accumulation of multimessenger detection of the BNS/BH–NS mergers with different viewing angles might further verify the existence of NDAFs with outflows.
Expediting DECam Multimessenger Counterpart Searches with Convolutional Neural Networks
Authors: Shandonay A. , Morgan R. , Bechtol K. , Bom C. R. , Nord B. , Garcia A. , Henghes B. , Herner K. , Tabbutt M. , Palmese A. , Santana-Silva L. , Soares-Santos M. , Gill M. S. S. , García-Bellido J.
Published: January 2022

Searches for counterparts to multimessenger events with optical imagers use difference imaging to detect new transient sources. However, even with existing artifact-detection algorithms, this process simultaneously returns several classes of false positives: false detections from poor-quality image subtractions, false detections from low signal-to-noise images, and detections of preexisting variable sources. Currently, human visual inspection to remove the false positives is a central part of multimessenger follow-up observations, but when next generation gravitational wave and neutrino detectors come online and increase the rate of multimessenger events, the visual inspection process will be prohibitively expensive. We approach this problem with two convolutional neural networks operating on the difference imaging outputs. The first network focuses on removing false detections and demonstrates an accuracy of 92% on our data set. The second network focuses on sorting all real detections by the probability of being a transient source within a host galaxy and distinguishes between various classes of images that previously required additional human inspection. We find the number of images requiring human inspection will decrease by a factor of 1.5 using our approach alone and a factor of 3.6 using our approach in combination with existing algorithms, facilitating rapid multimessenger counterpart identification by the astronomical community.
The Chaotic History of the Retrograde Multi-planet System in K2-290A Driven by Distant Stars
Authors: Best Sergio , Petrovich Cristobal
Published: January 2022

The equator of star K2-290A was recently found to be inclined by 124° ± 6° relative to the orbits of both its known transiting planets. The presence of a companion star B at ∼100 au suggested that the birth protoplanetary disk could have tilted, thus providing an explanation for the peculiar retrograde state of this multi-planet system. In this work, we show that a primordial misalignment is not required and that the observed retrograde state is a natural consequence of the chaotic stellar obliquity evolution driven by a wider-orbit companion C at ≳2000 au long after the disk disperses. The star C drives eccentricity and/or inclination oscillations on the inner binary orbit, leading to widespread chaos from the periodic resonance passages between the stellar spin and planetary secular modes. Based on a population synthesis study, we find that the observed stellar obliquity is reached in ∼40%–70% of the systems, making this mechanism a robust outcome of the secular dynamics, regardless of the spin-down history of the central star. This work highlights the unusual role that very distant companions can have on the orbits of close-in planets and the host star’s spin evolution, connecting four orders of magnitude in distance scale over billions of orbits. We finally comment on the application to other exoplanet systems, including multi-planet systems in wide binaries.
First Images of the Molecular Gas around a Born-again Star Revealed by ALMA
Authors: Tafoya 多 Daniel 穂谷 , Toalá 杜 Jesús A. 宇君 , Unnikrishnan Ramlal , Vlemmings Wouter H. T. , Guerrero Martín A. , Kimeswenger Stefan , van Hoof Peter A. M. , Zapata Luis A. , Treviño-Morales Sandra P. , Rodríguez-González Janis B.
Published: January 2022

Born-again stars allow probing stellar evolution in human timescales and provide the most promising path for the formation of hydrogen-deficient post-asymptotic giant branch objects, but their cold and molecular components remain poorly explored. Here we present ALMA observations of V 605 Aql that unveil for the first time the spatio-kinematic distribution of the molecular material associated with a born-again star. Both the continuum and molecular line emission exhibit a clumpy ring-like structure with a total extent of ≈1″ in diameter. The bulk of the molecular emission is interpreted as being produced in a radially expanding disk-like structure with an expansion velocity

v

exp

∼ 90 km s−1 and an inclination i ≈ 60° with respect to the line of sight. The observations also reveal a compact high-velocity component,

v

exp

∼ 280 km s−1, that is aligned perpendicularly to the expanding disk. This component is interpreted as a bipolar outflow with a kinematical age τ ≲ 20 yr, which could either be material that is currently being ejected from V 605 Aql, or is being dragged from the inner parts of the disk by a stellar wind. The dust mass of the disk is in the range M
dust ∼ 0.2–8 × 10−3
M
⊙, depending on the dust absorption coefficient. The mass of the CO is M
CO ≈ 1.1 × 10−5
M
⊙, which is more than three orders of magnitude larger than the mass of the other detected molecules. We estimate a 12C/13C ratio of 5.6 ± 0.6, which is consistent with the single stellar evolution scenario in which the star experienced a very late thermal pulse instead of a nova-like event as previously suggested.
On counterfactuality: a multimodal approach to (apparent) contradictions between positive statements and gestures of negation
Authors: Avelar Maíra , Graça Beatriz
Published: January 2022

Relying on discussions about recurrent gestures and gestures of negation, in this paper, we aim to demonstrate how the apparent contradiction between negative gestural utterances co-occurring with positive spoken utterances can be explained with the concepts of counterfactuality and epistemic stances, developed in the Mental Spaces Theory framework. To illustrate how gestures of negation can be analyzed as a case of multiple blends and be metaphorically interpreted, we chose three examples of co-occurrences of a positive verbal and negative gestural utterance. Specifically for the discussion proposed here, we selected three videos from the Brazilian TV show “What the hell is this story, Porchat?” (“Que história é essa, Porchat?”). To analyze the data we used the Linguistic Annotation System for Gestures (LASG) and focused on gestural forms and functions, as well as their semantic relation with the speech. The results showed that in all three videos gestures perform a metacommunicative function. Thus, they can be categorized as pragmatic and discursive gestures, realizing specific performative or operational functions. The sweeping away gestures found in two occurrences work on the discursive level to emphasize implicit counterfactuality of the verbal utterance. The throwing away gesture, found in one occurrence, works on the pragmatic level, also to dismiss the positive possibility created by the verbal utterance. In both cases the gesture operates to prevent any possibility of creating an alternative positive mental space, also demonstrating the implicit counterfactuality of the positive verbal utterances.
On the diachronic aspect of gestural communication
Authors: Savchuk Svetlana
Published: January 2022

Modern studies of gesturing conclusively prove that a gestural communication system accompanies oral speech the units of which, like linguistic ones, can be described using a limited set of reproducible features assigned to certain classes and correlated with certain contexts of use.

The diachronic aspect of gesturing has been little studied, although there is an understanding that human gesture behaviour, like speech, changes in space, time as well as under the influence of changing sociocultural conditions. Changes in the gestural system usually refer to innovations, the emergence of new gestures. It is much more difficult to describe the gestures that have gone or are going out of use since due to the lack of video recording they have to be restored from descriptions preserved in literature.

Examples of gestures that have recently entered the Russian gestural system as well as examples of gestures that have gradually become obsolete are considered in this work. The data of the Multimodal Russian Corpus and some other corpora within the Russian National Corpus (RNC) used in this survey enable a clarification of the semantic and pragmatic characteristics of the gestures and changes in their use to be tracked.
Multiple XEN Gel Stents for Refractory Pediatric Glaucoma
Authors: Ruparelia Sunil , Berco Efraim , Lichtinger Alejandro , Shoham-Hazon Nir
Published: January 2022

Although trabeculotomy and goniotomy are currently the mainstay of surgical management for congenital glaucoma, XEN Gel Stent (Allergan) implantation and other microinvasive glaucoma surgery technologies may offer the advantage of having a lower risk of postoperative complications than conventional techniques. A 10-year-old boy presented with aphakic glaucoma in his left eye secondary to previous cataract surgery. Intraocular pressure (IOP) in the left eye at initial presentation was 31 mm Hg with maximal tolerated medical therapy. Surgical history included tube shunt, shunt revision, and subsequent shunt removal. Shunt surgery and revision had been unsuccessful at achieving target IOP. The patient underwent two treatments of micro-pulse transscleral laser therapy that failed to achieve target IOP. At this time, an open conjunctiva ab externo superior XEN Gel Stent (Allergan) was implanted. Within 1 month of surgery, conjunctival dehiscence and contraction occurred. Following this, ab interno inferonasal air–ophthalmic viscosurgical device XEN Gel Stent implantation was performed. In the 6 months following the second XEN Gel Stent, IOP in the left eye was stable at 6 to 8 mm Hg. This report describes the effective use of a XEN Gel Stent implant in the management of congenital glaucoma, while also highlighting a complication. Further studies are required to determine the comparative outcomes of this technique with conventional surgical management.

[
J Pediatr Ophthalmol Strabismus
. 2022;59(1):e11–e14.]
New Surgical Interlacing Technique for Correction of Highly Myopic Strabismus
Authors: Mendonça Tomas S. , Rossetto Julia Dutra , Correa Alyne B. , Plut Mauro
Published: January 2022

This interventional case series describes a new surgical interlacing procedure for esotropia correction in patients with high myopia. The technique consists of superior and lateral rectus tendon splitting, lateral rectus superior half passage within the undisinserted superior rectus muscle, and its reattachment at the original insertion. Surgical results showed marked improvement in alignment and abduction.

[
J Pediatr Ophthalmol Strabismus
. 2022;59(1):e1–e6.]
Antioxidant activity and inhibition of α-amylase and α-glucosidase in fermented black rice bran-based analog rice
Authors: Noviasari Santi , Kusnandar Feri , Setiyono Agus , Budijanto Slamet
Published: January 2022

Analog rice is an alternative food that can also be a functional food. Analog rice has the same shape as rice grains, can be made from non-rice flour, and can be consumed like white rice. The purpose of this study is to determine the effect as an antidiabetic of the addition of fermented black rice bran (FBB) and non-fermented black rice bran (NFBB) on analog rice based on in vitro assays. This research was conducted in three stages: analog rice was made from the raw materials of sorghum, yellow soybean, black soybean, FBB and NFBB; analysis of the phytochemical characteristics of analog rice; evaluation of DPPH-radical scavenging; and analysis of the inhibitory effects of agents α-amylase and α-glucosidase. Increased phenol, flavonoid, and anthocyanin content were found in analog rice with the addition of FBB. In addition, analog rice with the addition of FBB also had antioxidant activity and higher inhibition of α-amylase and α-glucosidase activity with a range of 54.50–65.52%, 63.16–65.51% and 60.27–62.09% respectively compared to analog rice with the addition of NFBB. The results of this study indicate that analog rice with the raw materials of sorghum, beans and the addition of FBB has potential as an antidiabetic food.
Reducing free acidity and acrolein formation of omega-3-rich oils by blending with extra virgin olive oil during microwave heating
Authors: Kishimoto Norihito
Published: January 2022

In recent years, microwave food processing has been increasingly utilized worldwide. Omega-3-rich oils, which have various health benefits, must be protected from heat treatment, including microwave heating, due to their thermosensitivity. In this study, we investigated oxidative stability of blends of omega-3-rich oils, such as flaxseed, sesame, and perilla oils, with extra virgin olive oil (EVOO) in order to reduce concentration of acrolein during microwave heating. Microwaving flaxseed oil increased the free acidity and the formation of undesirable and irritating odors (e.g., acrolein). In contrast, microwave treatment of EVOO resulted in a much lower level of free acidity and acrolein formation. Blending 10% EVOO in flaxseed oil enhanced the antioxidant capacity and effectively reduced free acidity and acrolein formation during microwave heating. The enhancing effect was also partially achieved in flaxseed oil blended with both 10% refined olive oil and α-tocopherol, which are bioactive components in EVOO. Similarly, blending 10% EVOO in other omega-3-rich oils, including sesame oil and perilla oil, also decreased free acidity and acrolein formation during microwave heating. These results suggest that blending with EVOO facilitates the use of omega-3-rich oils in microwave food processing while retaining their health benefits.
A unified framework for optimal control of fractional in time subdiffusive semilinear PDEs
Authors: Antil Harbir , Gal Ciprian G. , Warma Mahamadi
Published: January 2022

We consider optimal control of fractional in time (subdiffusive, i.e., for \begin{document}$ 0<\gamma <1 $\end{document}) semilinear parabolic PDEs associated with various notions of diffusion operators in an unifying fashion. Under general assumptions on the nonlinearity we \begin{document}$\mathsf{first\;show}$\end{document} the existence and regularity of solutions to the forward and the associated \begin{document}$\mathsf{backward\;(adjoint)}$\end{document} problems. In the second part, we prove existence of optimal \begin{document}$\mathsf{controls }$\end{document} and characterize the associated \begin{document}$\mathsf{first\;order}$\end{document} optimality conditions. Several examples involving fractional in time (and some fractional in space diffusion) equations are described in detail. The most challenging obstacle we overcome is the failure of the semigroup property for the semilinear problem in any scaling of (frequency-domain) Hilbert spaces.
Dermatology disease prediction based on firefly optimization of ANFIS classifier
Authors: Rajeshwari J. , Sughasiny M.
Published: January 2022

The rate of increase in skin cancer incidences has become worrying in recent decades. This is because of constraints like eventual draining of ozone levels, air's defensive channel capacity and progressive arrival of Sun-oriented UV radiation to the Earth's surface. The failure to diagnose skin cancer early is one of the leading causes of death from the disease. Manual detection processes consume more time well as not accurate, so the researchers focus on developing an automated disease classification method. In this paper, an automated skin cancer classification is achieved using an adaptive neuro-fuzzy inference system (ANFIS). A hybrid feature selection technique was developed to choose relevant feature subspace from the dermatology dataset. ANFIS analyses the dataset to give an effective outcome. ANFIS acts as both fuzzy and neural network operations. The input is converted into a fuzzy value using the Gaussian membership function. The optimal set of variables for the Membership Function (MF) is generated with the help of the firefly optimization algorithm (FA). FA is a new and strong meta-heuristic algorithm for solving nonlinear problems. The proposed method is designed and validated in the Python tool. The proposed method gives 99% accuracy and a 0.1% false-positive rate. In addition, the proposed method outcome is compared to other existing methods like improved fuzzy model (IFM), fuzzy model (FM), random forest (RF), and Naive Byes (NB).
Control and maintenance of fully-constrained and underconstrained rigid body motion on Lie groups and their tangent bundles
Authors: McCann Brennan , Nazari Morad
Published: January 2022

Presented herein are a class of methodologies for conducting constrained motion analysis of rigid bodies within the Udwadia-Kalaba (U-K) formulation. The U-K formulation, primarily devised for systems of particles, is advanced to rigid body dynamics in the geometric mechanics framework and a novel development of U-K formulation for use on nonlinear manifolds, namely the special Euclidean group \begin{document}$ {\mathsf{SE}(3)}$\end{document} and its second order tangent bundle \begin{document}${\mathsf{T}^2\mathsf{SE}(3)} $\end{document}, is proposed in addition to the formulation development on Euclidean spaces. Then, a Morse-Lyapunov based tracking controller using backstepping is applied to capture disturbed initial conditions that the U-K formulation cannot account for. This theoretical development is then applied to fully-constrained and underconstrained scenarios of rigid-body spacecraft motion in a lunar orbit, and the translational and rotational motions of the spacecraft and the control inputs obtained using the proposed methodologies to achieve and maintain those constrained motions are studied.
Kinetic Fokker-Planck and Landau equations with specular reflection boundary condition
Authors: Dong Hongjie , Guo Yan , Yastrzhembskiy Timur
Published: January 2022

We establish existence of finite energy weak solutions to the kinetic Fokker-Planck equation and the linear Landau equation near Maxwellian, in the presence of specular reflection boundary condition for general domains. Moreover, by using a method of reflection and the \begin{document}$ S_p $\end{document} estimate of [7], we prove regularity in the kinetic Sobolev spaces \begin{document}$ S_p $\end{document} and anisotropic Hölder spaces for such weak solutions. Such \begin{document}$ S_p $\end{document} regularity leads to the uniqueness of weak solutions.
Mitigating consumer privacy breach in smart grid using obfuscation-based generative adversarial network
Authors: Desai Sanket ,   Department of Computer Science & I.T., La Trobe University, Melbourne, VIC 3083, Australia, Sabar Nasser R , Alhadad Rabei , Mahmood Abdun , Chilamkurti Naveen
Published: January 2022

Smart meters allow real-time monitoring and collection of power consumption data of a consumer's premise. With the worldwide integration of smart meters, there has been a substantial rise in concerns regarding threats to consumer privacy. The exposed fine-grained power consumption data results in behaviour leakage by revealing the end-user's home appliance usage information. Previously, researchers have proposed approaches to alter data using perturbation, aggregation or hide identifiers using anonymization. Unfortunately, these techniques suffer from various limitations. In this paper, we propose a privacy preserving architecture for fine-grained power data in a smart grid. The proposed architecture uses generative adversarial network (GAN) and an obfuscator to generate a synthetic timeseries. The proposed architecture enables to replace the existing appliance signature with appliances that are not active during that period while ensuring minimum energy difference between the ground truth and the synthetic timeseries. We use real-world dataset containing power consumption readings for our experiment and use non-intrusive load monitoring (NILM) algorithms to show that our approach is more effective in preserving the privacy level of a consumer's power consumption data.
Características organizacionais que influenciam o uso (ou não uso) do orçamento em indústrias catarinenses
Authors: Vogt Mara , Bilk Ângela , Silva Marcia Zanievicz da
Published: January 2022

O estudo tem por objetivo identificar características organizacionais que influenciam a utilização (ou não) do orçamento em indústrias catarinenses. A amostra é composta por 295 indústrias catarinenses, das quais, 258 declararam utilizar o orçamento e 37, que não utilizam. As variáveis analisadas foram ambiente de crise econômica, incerteza ambiental, estratégia, ciclo de vida e tamanho. Como técnica estatísticas empregou-se a análise de frequências e a regressão logística binomial. A partir dos resultados verificou-se que as características organizacionais que influenciam a adoção do orçamento são o tamanho da indústria, considerando a receita bruta operacional e a incerteza ambiental. Já no que diz respeito a adoção da estratégia de custos, a mesma tende a ser utilizada pelas indústrias que não usam o orçamento. Vale ressaltar que no contexto analisado, o orçamento continua sendo uma importante ferramenta utilizada. Por outro lado, as indústrias que não utilizam o orçamento, são indústrias de menor porte e, de acordo com as declarações dos respondentes, as razões de não uso decorrem da falta de recursos humanos, tecnológicos e financeiros para sua adoção. Sendo assim, no contexto das indústrias catarinenses, as razões de não uso do orçamento se relacionam com fatores contingenciais e não por considerarem o orçamento como uma ferramenta inadequada para o contexto em que estão inseridas.
Características organizacionais que influenciam a reapresentação retrospectiva de demonstrações financeiras no Brasil
Authors: Jardim Constantino Giorgia , Hiroshi Nakao Sílvio , Azevedo Yuri Gomes Paiva
Published: January 2022

O artigo tem por objetivo verificar a influência da complexidade da estrutura organizacional e dos negócios sobre a reapresentação retrospectiva das demonstrações financeiras em empresas de capital aberto no Brasil. Para tanto, foram analisadas 205 empresas de capital aberto por meio da publicação de suas demonstrações financeira anuais, entre o quarto trimestre de 2016 e o segundo trimestre de 2017. A análise de dados realizada por meio de regressões Logit e Probit indicou que a complexidade dos negócios pode levar a uma maior probabilidade de publicar reapresentações de saldos comparativos. No entanto, não foi identificado qualquer tipo de relação entre reapresentação retrospectiva de saldos e nível de concentração acionária, qualidade da governança corporativa, performance financeira e endividamento. Adicionalmente, a análise das notas explicativas sobre a natureza da reapresentação do saldo, montante e norma aplicável, indicou que 101 empresas realizaram algum tipo de ajuste em saldo comparativo, principalmente em função de erros. Esses resultados contrapõem a literatura prévia que considera o gerenciamento de resultados como principal motivação para a reapresentação das demonstrações financeiras retrospectivas.
Análise da aquisição corporativa na remuneração de executivos: um estudo entre empresas brasileiras familiares e não familiares
Authors: Manoel de Oliveira Rafael , Paula Pimenta Daiana , Ferreira Marília Paranaíba , Mussoi Ribeiro Alex
Published: January 2022

Os estudos sobre remuneração corporativa despertaram o interesse da academia e do meio empresarial nos últimos anos, principalmente após os órgãos normatizadores e reguladores terem estabelecidos regras mais rígidas de transparência das formas de remuneração de executivos. Nesse sentido, este estudo objetiva analisar se existe diferença na remuneração total de executivos entre empresas familiares e não familiares que efetuaram aquisições corporativas no período 2009-2016. Os dados de remuneração de executivos foram coletados no site da B3. Já a identificação das aquisições corporativas e a obtenção das demais informações ocorreram por meio da base de dados da Thomson Reuters Eikon. As empresas foram classificadas como familiares ou não familiares a partir da abordagem de componente de envolvimento da família no controle, na propriedade e na gestão da empresa e da abordagem de identidade organizacional, autodeclarada no histórico da empresa. No total, 96 empresas, 39 familiares e 57 não familiares, participaram de 281 aquisições como adquirentes, as quais foram analisadas mediante regressão múltipla com dados em painel não balanceado. Os resultados apontaram que o aumento na remuneração total de executivos das empresas não familiares é superior em relação as empresas familiares no período pós-aquisição. Assim, como contribuição prática, os achados podem levar os acionistas das empresas a refletirem sobre o uso da estratégia de aquisições corporativas, uma vez que os executivos das empresas adquirentes não familiares recebem, em média, maiores remunerações. A contribuição teórica está na análise segregada das empresas, se familiar ou não familiar, que permite uma visão diferente dos resultados e peculiar da Teoria da Agência.
Peroxisomes Are Critical for the Development and Maintenance of B1 and Marginal Zone B Cells but Dispensable for Follicular B Cells and T Cells
Authors: Muri Jonathan , Corak Basak , Matsushita Mai , Baes Myriam , Kopf Manfred
Published: January 2022

Antioxidant systems maintain cellular redox (oxidation-reduction) homeostasis. In contrast with other key redox pathways, such as the thioredoxin system, glutathione, and NF-E2-related factor 2 (Nrf2), little is known about the function of the redox-sensitive organelle “peroxisome” in immune cells. In this study, we show that the absence of peroxisomes in conditional Pex5-deficient mice strikingly results in impaired homeostatic maintenance of innate-like B cells, namely, B1 and marginal zone B cells, which translates into a defective Ab response to Streptococcus pneumoniae. Surprisingly, however, follicular B2 cell development, homeostatic maintenance, germinal center reactions, Ab production, class switching, and B cell memory formation were unaffected in Pex5-deficient animals. Similarly, T cell development and responses to viral infections also remained unaltered in the absence of Pex5. Thus, this study highlights the differential requirement of peroxisomes in distinct lymphocyte subtypes and may provide a rationale for specifically targeting peroxisomal metabolism in innate-like B cells in certain forms of B cell malignancies involving B1 cells.
Active surveillance of adverse events following ChAdOx1 nCoV-19 immunization in geriatric population: a prospective multi-centric study from Jaipur, Rajasthan, India
Authors: Bhandari Anil , Tiwari Surya Pratap Singh , Rathore Monika , Sharma Lokendra , Jain Smita
Published: January 2022

India launched its coronavirus disease 2019 (COVID-19) vaccination drive starting with healthcare workers. The aim of the study was to evaluate adverse events following immunization (AEFI) amongst the Geriatric population associated with two doses of ChAdOx1 nCoV-19 vaccine. We also evaluated association of AEFI according to gender and elderly age groups. An observational study, conducted among 437 individuals vaccinated at multiple community healthcare centers in Jaipur, of AEFIs associated with both doses of ChAdOx1 nCoV-19 vaccine, via telephonic interviews on the day of vaccination-Day 0, Day 7 and Day 15 from vaccination. 463 vaccinated individuals who responded for first dose AEFIs, and 437 (94.3% 437/463) responded to the telephone interview regarding the second dose. Of these, 5.5% (24/437) reported AEFIs for the second dose. Among 60 respondents who reported AEFI (both doses) fever (26) and fatigue (22) were the most reported systemic AEFI. Local AEFIs were injection site soreness (23). The AEFIs (both systemic and local) in respondents mostly lasted for 1-2 days. AEFI reported by respondents in the age group 60- 70 years was higher than those above 70 years. Female respondents were associated with higher AEFI than the males. The AEFIs of both the doses were observed in the first 2 days predominantly. Symptoms were minor, short lived and selflimiting. No serious adverse events attributable to vaccines were reported in our study. Adverse event following immunization is independent of gender and age distribution for both the doses.
Reproductive Life Span and Severe Hypoglycemia Risk in Postmenopausal Women with Type 2 Diabetes Mellitus
Authors: Kang Soyeon , Park Yong-Moon , Kwon Dong Jin , Chung Youn-Jee , Namkung Jeong , Han Kyungdo , Ko Seung-Hyun
Published: January 2022

Background: Estrogen promotes glucose homeostasis, enhances insulin sensitivity, and maintains counterregulatory responses in recurrent hypoglycemia in women of reproductive age. Postmenopausal women with type 2 diabetes mellitus (T2DM) might be more vulnerable to severe hypoglycemia (SH) events. However, the relationship between reproductive factors and SH occurrence in T2DM remains unelucidated.Methods: This study included data on 181,263 women with postmenopausal T2DM who participated in a national health screening program from January 1 to December 31, 2009, obtained using the Korean National Health Insurance System database. Outcome data were obtained until December 31, 2018. Associations between reproductive factors and SH incidence were assessed using Cox proportional hazards models.Results: During the mean follow-up of 7.9 years, 11,279 (6.22%) postmenopausal women with T2DM experienced SH episodes. A longer reproductive life span (RLS) (≥40 years) was associated with a lower SH risk compared to a shorter RLS (<30 years) (adjusted hazard ratio [HR], 0.74; 95% confidence interval [CI], 0.69 to 0.80; P for trend <0.001) after multivariable adjustment. SH risk decreased with every 5-year increment of RLS (with <30 years as a reference [adjusted HR, 0.91; 95% CI, 0.86 to 0.95; P=0.0001 for 30−34 years], [adjusted HR, 0.80; 95% CI, 0.76 to 0.84; P<0.001 for 35−39 years], [adjusted HR, 0.74; 95% CI, 0.68 to 0.81; P<0.001 for ≥40 years]). The use of hormone replacement therapy (HRT) was associated with a lower SH risk than HRT nonuse.Conclusion: Extended exposure to endogenous ovarian hormone during lifetime may decrease the number of SH events in women with T2DM after menopause.
Spectrum of Enteric Fever Complications
Authors: Rastogi Vinay Kumar , Passi Paras , Bembey Raghavi Abhilesh , Chatterjee Devesh , Bhattacharya Sonali
Published: January 2022

Enteric fever can have wide clinical presentation in humans. We report few rare complications of enteric fever such as secondary hemophagocytic lymphohistiocytosis, liver abscess, encephalopathy, and myopericarditis. Interestingly none of these cases are easy to recognize in early days in far flung remote areas where facilities are lacking. In our observance, first case was of 59-year-old male, who presented with acute febrile illness, thrombocytopenia, and hepatosplenomegaly. The patient had progressive pancytopenia with clinical deterioration. A diagnosis of secondary hemophagocytic lymphohistiocytosis was made and managed. The second case presented as fever with acute abdomen, which was due to pyogenic liver abscess caused by Salmonella typhi (S. typhi). Third case was 65-year-old female who presented with fever associated with neuropschychiatric and cerebeller signs. She was diagnosed as enteric encephalitis and managed with antibiotics along with corticosteroids. Fourth case was of 22-year-old female with blood culture positive for S. typhi and positive serum Widal test who after 3 days of treatment developed sudden cardiogenic shock and echocardiography confirmed presence of myopericarditis with mild pericardial effusion.
Better Take a Second Look
Authors: Schlossbauer Susanne Anna , Campanale Daniela , Leo Laura , Paiocchi Vera , Faletra Francesco Fulvio
Published: January 2022

We have recently published in the journal the case of a 66-year-old female affected by typical Takotsubo syndrome (TTS) with apical ballooning, who presented important novel apical wall thickening despite normalization of left ventricular ejection fraction at a follow-up cardiac magnetic resonance (CMR) 1 month after the acute event. In the absence of significant elevated edema-sensitive T2 values at CMR, this constellation was interpreted as apical hypertrophic cardiomyopathy, initially mimicked by TTS. However, a routine late follow-up echocardiography and CMR after 6 months showed complete resolution of apical wall thickening. “Pseudohypertrophy” caused by transient significant myocardial edema seems to be a more frequent phenotype in the subacute phase of TTS than is yet known, which may cause diagnostic confusion.
Valve-in-Valve-in-Ring
Authors: Vairo Alessandro , Conrotto Federico , Franchin Luca , Fortuni Federico , Bruno Francesco , Montefusco Antonio , D’Ascenzo Fabrizio , Milan Alberto , Torre Michele La , Alunni Gianluca , Rinaldi Mauro , De Ferrari Gaetano Maria
Published: January 2022

A 55-year-old male with a history of severe organic mitral regurgitation treated with surgical mitral valve (MV) repair was referred for a transcatheter MV replacement due to recurrent regurgitation. After the release of the first transcatheter MV, a severe paravalvular leak coming from the lateral side was observed. To promptly tackle this issue, a second valve with further postdilation was successfully implanted and the paravalvular leak disappeared. This case highlights the feasibility of implanting a second valve in case of severe paravalvular leaks after MV-in-ring procedures due to device malapposition.
A New SCN5A Variant in a Patient with Idiopathic Ventricular Fibrillation
Authors: Benvenga Rossella Maria , Polito Maria Vincenza , Prota Costantina , Dellegrottaglie Santo , Ragosa Nicola , D’Arco Gianpaolo , Ducceschi Valentino , Aloia Antonio
Published: January 2022

We present the case of a patient with recurrent episodes of ventricular fibrillation without evidence of structural cardiac diseases on imaging techniques and negative genetic testing for the most common primary arrhythmia syndromes. A new variant c.6023C>T p.Pro2008Leu of the SCN5A protein, responsible for the sodium inward current (INa) through the cardiomyocytes, was found. A likely pathogenic effect of this gene variant was hypothesized.
Community Involvement in Controlling COVID-19 Pandemic in Maharashtra, India
Authors: Kushwaha Arvind Singh , Banerjee Sitikantha , Bandyopadhyay Kajari
Published: January 2022

Community involvement is of utmost importance in the management of ongoing COVID-19 pandemic from compliance with lockdown, to the steps taken during easing restrictions, to community support through volunteering. Government of India used “Test, Track, and Treat” strategy to control the outbreak, which mainly focuses on strict legislative actions and capacity building. The strategies are predominately top-down, centralized, and government owned, where community participation and involvement were grossly missing. While visiting different high burden states of Maharashtra as members of central rapid response team, the researchers observed excellent community involvement models in some resource-poor settings, which were quite successful in controlling and managing pandemic at local level, and worth replicating in other settings. In this article, some of such evidences have been highlighted. This study also emphasized how community involvement could be more effectively used as a strategy to fight pandemic.
A general notion of coherent systems
Authors: Schmitt Alexander H.W.
Published: January 2022

We look at coherent systems for decorated vector bundles and propose a notion of semistability. In the special case of tensor powers, we will examine this notion more closely. In particular, we will construct moduli spaces with the help of geometric invariant theory. It is an interesting aspect that ampleness of the linearization in the geometric invariant theory construction yields a bound on the stability parameter for coherent systems.
Квазиалгебраическое кольцо условий пространства $\mathbb C^n$
Authors: Kazarnovskii Boris Yakovlevich
Published: January 2022

Экспоненциальная сумма - это линейная комбинация характеров аддитивной группы пространства $\mathbb C^n$. Мы рассматриваем $\mathbb{C}^n$, как аналог тора $(\mathbb{C}\setminus0)^n$, экспоненциальную сумму - как аналог полинома Лорана, а экспоненциальное аналитическое множество ($\mathrm{EA}$-множество), т. е. множество совместных нулей конечной системы экспоненциальных сумм, - как аналог алгебраического подмногообразия тора. Используя эти аналогии, мы определяем индекс пересечения $\mathrm{EA}$-множеств и, применяя алгоритм Де Кончини и Прочези, строим кольцо условий (ring of conditions) соответствующей теории пересечений. Построения индекса пересечения и кольца условий основаны на сопоставлении $\mathrm{EA}$-множеству алгебраического подмногообразия некоторого многомерного комплексного тора и на применении метода тропической геометрии. Вычисление индекса пересечений дивизоров произвольных экспоненциальных сумм $f_1,…,f_n$ приводит к формуле плотности $\mathrm{EA}$-множества совместных нулей возмущенной системы $f_i(z+w_i)$, верной для множества возмущений $\{w_1,…,w_n\}$ относительно полной меры в пространстве $\mathbb{C}^{n\times n}$. Эта формула аналогична формуле для количества совместных нулей полиномов Лорана.
Библиография: 22 наименования.
Active Safety Roadside Metal Guardrail Surrogate Recommendation
Authors:   Active Safety Systems Standards Committee
Published: January 2022

The scope of this document is to provide the design specifications/requirements for metal guardrail surrogates that represent real metal guardrails to the in-vehicle sensors and can be used for performance assessment of such in-vehicle sensing systems in real-world test scenarios/conditions. This document only includes the recommended metal guardrail surrogate characteristics for automotive cameras, LiDARs, and/or radars.
Thermal Analysis and Optimization of Conformal Cooling Channels in Injection Moulding Machine to Reduce Cycle Time
Authors: Agrawal Basant , Agrawal Basant
Published: January 2022

The cooling properties of an injection mould are significantly influenced by the design and kind of cooling channel used. Specifically, the present study seeks to determine the impact of various design parameters of the cooling channel on the performance of an injection mould. The cooling channel diameter and cooling channel pitch are the optimization factors to be considered. The CAD model is subjected to thermal analysis in the ANSYS programme under transient circumstances. When the coil dia and pitch of the cooling channel are varied, the design points are created automatically. A study is conducted to determine the influence of various design elements on directional and total heat fluxes. It was discovered that both of the design factors had a statistically significant impact on the heat absorption properties of the cooling channel under investigation. In order to determine how much of an influence coil dia has on total heat flux and total heat flux, sensitivity plots were constructed. It is possible to gain a roughly 11.3 percent boost in cooling efficiency by using optimization techniques.
Formulation and Evaluation of Shampoo Comprising Polyherbal Extracts
Authors: Albahri Malak M. , Mamri Amna S. Al. , Fawaz Zainab A. , Lotfi Nadin S. , Auf Faisal , Balamurugan Manickam , Akhtar Md. Sohail
Published: January 2022

In recent times, shampoo made from chemical agents are used all over the world but now a days people are getting alert of their toxic effects on eyes, hairs and skin. Good foam production is the main distinctive character of shampoo has an important role in its suitability. Typically, certain chemicals like stable foams are produced from alkanolamides, but it was found potentially carcinogenic compounds. Therefore, this study aimed to remove these harmful ingredients from shampoo and replace them with a safe ingredients from natural origin, namely Murraya koenigii (Curry leaves), Aloe dhufarensis and Azadirachta indica and Acacia concinna (Shikakai). The poly herbal shampoo was formulated by using wet gum method. The shampoo was evaluated for different quality control tests and the results were found good. Further there is a need to formulate the polyherbal shampoo on industrial scale and detailed stability study required to be done. There is also need to test the performance of shampoo in human hairs to check its quality.
Qualitative Coding as a Pedagogy for Fostering Professional Dispositions and Reflexivity
Authors: Valtierra Kristina , Siegel Lesley
Published: January 2022

Many fields require practitioners to develop the dispositions, reflection, and reflexivity skills to navigate complex professional demands. Yet, there are limited methods for fostering these skills. Given that the act of qualitative coding is both iterative and reflexive, this paper shares an innovative approach to teaching students how to apply coding to their own reflective writing. We feature our process of teaching preservice teachers our self-coding method and lessons learned along the way from engaging 100 teacher candidates in the practice. Over four years, across three different higher education settings, graduate and undergraduate teacher candidates alike demonstrated insightful reflections about their developing professional dispositions and exhibited reflexivity. We conclude with suggestions on how other fields can adopt the self-coding process to develop reflexive practitioners.
Repertorio estético-afectivo de hombres anti-patriarcales: La construcción de otras masculinidades
Authors: Jimenez Rodas Jorge , Arboleda-Ariza Juan , Morales Herrera Milton
Published: January 2022

Los estudios de género en hombres y masculinidades retoman las bases de la crítica feminista para analizar los procesos y subjetividades masculinas. Este proceso ha estado acompañado de la creación cada vez más visible de colectivos de hombres que se oponen a los marcos hegemónicos de la masculinidad y promueven, por medio de un activismo político, versiones alternativas de entender lo masculino. En este trabajo nos preguntamos por el discurso que utilizan estos hombres y las consecuencias de este. Para esto analizamos el discurso de doce hombres latinoamericanos que participan en estos grupos e identificamos a partir de la variabilidad y la función de sus discursos las consecuencias que este tiene en la construcción de una concepción alternativa de la masculinidad. Los resultados describen dos dimensiones de un repertorio estético-afectivo. La primera describe la utilización del repertorio como orientaciones metodológicas y axiológicas que guíen y prescriban las acciones a seguir. La segunda dimensión describe una Tensión epistemológica con las concepciones tradicionales de la masculinidad y el género. Estos resultados nos permiten concluir que en el discurso de estos varones las experiencias artísticas y estéticas se relacionan con la búsqueda de una sensibilidad afectiva que tensiona la idea de una masculinidad racional y centrada en la fuerza.
Escola em tempos de conexões - Volume 02
Authors:   Paula Almeida de Castro,   Gessika Cecilia Carvalho da Silva,   Alex Vieira da Silva,   Givanildo da Silva,   Ricardo Jorge de Sousa Cavalcanti
Published: January 2022

Quais são as conexões da escola em 2021? O Congresso Nacional de Educação nos convida a refletir sobre os movimentos conectivos que a escola estabelece entre seus sujeitos em múltiplas possibilidades, seja presencial ou virtualmente. Em tempos de pandemia, esses movimentos foram desenhados para que, mais uma vez, os processos educacionais fossem reinventados para responder às demandas que a sociedade colocou para professores e professoras, alunos, alunas e suas famílias, bem como para a comunidade acadêmica. Esse processo desvelou, igualmente, uma realidade de desigualdades profundas, que marcam as trajetórias escolares de um sem-número de brasileiros e brasileiras. Quais serão as conexões que a escola vai precisar estabelecer para os próximos anos? Muitas são as respostas para compreender essas conexões e, para pensarmos juntos é que convidamos vocês para participarem da sétima edição do CONEDU. O evento foi estruturado de modo a ampliar a inserção de participantes em eventos científicos, incluindo a todos e todas! Entendemos que é no encontro de ideias que podemos estabelecer novas conexões para responder as demandas do campo educacional.
DESAFIOS DAS TICS NO ENSINO: UMA REFLEXÃO NO ENSINO MATEMÁTICO
Authors: HERCULANO MACEDO MARIA JOSÉ , PATRÍCIA SILVA E SILVA TÂNIA , WELLYDA AGUIAR CARVALHO MARIA
Published: January 2022

O PRESENTE TRABALHO TEVE COMO OBJETIVO EXPLANAR E DISCUTIR AS PERCEPÇÕES DOS PARTICIPANTES NO MINICURSO “TICS NO ENSINO MATEMÁTICO” QUANTO AO USO DE SOFTWARES, JOGOS, SIMULADORES, ETC. NO AMBIENTE ESCOLAR E UNIVERSITÁRIO PERMITINDO REFLEXÕES SOBRE AS DIFICULDADES EXISTENTES NO PROCESSO DE ENSINO-APRENDIZAGEM. DESSA FORMA, O ESTUDO APRESENTOU UMA ABORDAGEM QUANTI-QUALITATIVA E UTILIZOU-SE AS RESPOSTAS DE 18 QUESTIONÁRIOS APLICADOS À ACADÊMICOS DA UNIVERSIDADE FEDERAL DO MARANHÃO. ABORDAGENS COMO AS CONTRIBUIÇÕES DO USO DAS FERRAMENTAS TECNOLÓGICAS NO AMBIENTE ESCOLAR, DIFICULDADES ENFRENTADAS POR DOCENTES E DISCENTES, VANTAGENS E DESVANTAGENS NA INSERÇÃO DESTES MECANISMOS AUXILIADORES NO ENSINO, EM ESPECIAL NO ENSINO MATEMÁTICO, FORAM ABORDADAS DE FORMA SIGNIFICATIVA E PRESUNÇOSA NESSE ESTUDO, QUE POR FIM APRESENTOU UM PERFIL CARACTERÍSTICO PARA DOCENTES MATEMÁTICOS FRENTE AO CENÁRIO TECNOLÓGICO. INFERE-SE DESTACAR QUE MESMO EM MEIO AOS DESAFIOS DA INSERÇÃO DE FERRAMENTAS TECNOLÓGICAS NOS AMBIENTES DE ENSINO-APRENDIZAGEM, ESSAS SE APRESENTAM COMO RECURSOS FAVORÁVEIS A APRENDIZAGEM, EM RAZÃO DE SUA GRANDE VERSATILIDADE DESDE QUE OS ENVOLVIDOS NO PROCESSO EDUCATIVO EXPLORE AS POTENCIALIDADES DAS TICS.