bluuebunny/crossref_metadata_2025 huggingface dataset:
Multi-messenger Approaches to Supermassive Black Hole Binary Detection and Parameter Estimation: Implications for Nanohertz Gravitational Wave Searches with Pulsar Timing Arrays
Authors: Liu Tingting , Vigeland Sarah J.
Published: November 2021

Pulsar timing array (PTA) experiments are becoming increasingly sensitive to gravitational waves (GWs) in the nanohertz frequency range, where the main astrophysical sources are supermassive black hole binaries (SMBHBs), which are expected to form following galaxy mergers. Some of these individual SMBHBs may power active galactic nuclei, and thus their binary parameters could be obtained electromagnetically, which makes it possible to apply electromagnetic (EM) information to aid the search for a GW signal in PTA data. In this work, we investigate the effects of such an EM-informed search on binary detection and parameter estimation by performing mock data analyses on simulated PTA data sets. We find that by applying EM priors, the Bayes factor of some injected signals with originally marginal or sub-threshold detectability (i.e., Bayes factor ∼1) can increase by a factor of a few to an order of magnitude, and thus an EM-informed targeted search is able to find hints of a signal when an uninformed search fails to find any. Additionally, by combining EM and GW data, one can achieve an overall improvement in parameter estimation, regardless of the source’s sky location or GW frequency. We discuss the implications for the multi-messenger studies of SMBHBs with PTAs.
Capturing the Physics of MaNGA Galaxies with Self-supervised Machine Learning
Authors: Sarmiento Regina , Huertas-Company Marc , Knapen Johan H. , Sánchez Sebastián F. , Domínguez Sánchez Helena , Drory Niv , Falcón-Barroso Jesus
Published: November 2021

As available data sets grow in size and complexity, advanced visualization tools enabling their exploration and analysis become more important. In modern astronomy, integral field spectroscopic galaxy surveys are a clear example of increasing high dimensionality and complex data sets, which challenges the traditional methods used to extract the physical information they contain. We present the use of a novel self-supervised machine-learning method to visualize the multidimensional information on stellar population and kinematics in the MaNGA survey in a 2D plane. Our framework is insensitive to nonphysical properties such as the size of the integral field unit and is therefore able to order galaxies according to their resolved physical properties. Using the extracted representations, we study how galaxies distribute based on their resolved and global physical properties. We show that even when exclusively using information about the internal structure, galaxies naturally cluster into two well-known categories, rotating main-sequence disks and massive slow rotators, from a purely data-driven perspective, hence confirming distinct assembly channels. Low-mass rotation-dominated quenched galaxies appear as a third cluster only if information about the integrated physical properties is preserved, suggesting a mixture of assembly processes for these galaxies without any particular signature in their internal kinematics that distinguishes them from the two main groups. The framework for data exploration is publicly released with this publication, ready to be used with the MaNGA or other integral field data sets.
Discovery of a New Population of Galactic H ii Regions with Ionized Gas Velocity Gradients
Authors: Balser Dana S. , Wenger Trey V. , Anderson L. D. , Armentrout W. P. , Bania T. M. , Dawson J. R. , Dickey John M.
Published: November 2021

We investigate the kinematic properties of Galactic H ii regions using radio recombination line (RRL) emission detected by the Australia Telescope Compact Array at 4–10 GHz and the Jansky Very Large Array at 8–10 GHz. Our H ii region sample consists of 425 independent observations of 374 nebulae that are relatively well isolated from other, potentially confusing sources and have a single RRL component with a high signal-to-noise ratio. We perform Gaussian fits to the RRL emission in position-position–velocity data cubes and discover velocity gradients in 178 (42%) of the nebulae with magnitudes between 5 and 200

m

s

−
1

arcsec

−
1

. About 15% of the sources also have an RRL width spatial distribution that peaks toward the center of the nebula. The velocity gradient position angles appear to be random on the sky with no favored orientation with respect to the Galactic plane. We craft H ii region simulations that include bipolar outflows or solid body rotational motions to explain the observed velocity gradients. The simulations favor solid body rotation since, unlike the bipolar outflow kinematic models, they are able to produce both the large, >40

m

s

−
1

arcsec

−
1

, velocity gradients and also the RRL width structure that we observe in some sources. The bipolar outflow model, however, cannot be ruled out as a possible explanation for the observed velocity gradients for many sources in our sample. We nevertheless suggest that most H ii region complexes are rotating and may have inherited angular momentum from their parent molecular clouds.
Radiative-dynamical Simulation of Jupiter’s Stratosphere and Upper Troposphere
Authors: Zube Nicholas G. , Zhang Xi , Li Tao , Le Tianhao , Li Cheng , Guerlet Sandrine , Tan Xianyu
Published: November 2021

We present a two-dimensional radiative-dynamical model of the combined stratosphere and upper troposphere of Jupiter to understand its temperature distribution and meridional circulation pattern. Our study highlights the importance of radiative and mechanical forcing for driving the middle atmospheric circulation on Jupiter. Our model adopts a state-of-the-art radiative transfer scheme with recent observations of Jovian gas abundances and haze distribution. Assuming local radiative equilibrium, latitudinal variation of hydrocarbon abundances is not able to explain the observed latitudinal temperature variations in the mid-latitudes. With mechanical forcing parameterized as a frictional drag on zonal wind, our model produces ∼2 K latitudinal temperature variations observed in low to mid-latitudes in the troposphere and lower stratosphere, but cannot reproduce the observed 5 K temperature variations in the middle stratosphere. In the high latitudes, temperature and meridional circulation depend strongly on polar haze radiation. The simulated residual mean circulation shows either two broad equator-to-pole cells or multi-cell patterns, depending on the frictional drag timescale and polar haze properties. A more realistic wave parameterization and a better observational characterization of haze distribution and optical properties are needed to better understand latitudinal temperature distributions and circulation patterns in the middle atmosphere of Jupiter.
The Water-ice Feature in Near-infrared Disk-scattered Light around HD 142527: Micron-sized Icy Grains Lifted up to the Disk Surface?
Authors: Tazaki Ryo , Murakawa Koji , Muto Takayuki , Honda Mitsuhiko , Inoue Akio K.
Published: November 2021

We study the 3 μm scattering feature of water ice detected in the outer disk of HD 142527 by performing radiative transfer simulations. We show that an ice mass abundance at the outer disk surface of HD 142527 is much lower than estimated in a previous study. It is even lower than inferred from far-infrared ice observations, implying ice disruption at the disk surface. Next, we demonstrate that a polarization fraction of disk-scattered light varies across the ice-band wavelengths depending on ice grain properties; hence, polarimetric spectra would be another tool for characterizing water-ice properties. Finally, we argue that the observed reddish disk-scattered light is due to grains a few microns in size. To explain the presence of such grains at the disk surface, we need a mechanism that can efficiently oppose dust settling. If we assume turbulent mixing, our estimate requires α ≳ 2 × 10−3, where α is a nondimensional parameter describing the vertical diffusion coefficient of grains. Future observations probing gas kinematics would be helpful to elucidate vertical grain dynamics in the outer disk of HD 142527.
Dust Rings as a Footprint of Planet Formation in a Protoplanetary Disk
Authors: Kanagawa Kazuhiro D. , Muto Takayuki , Tanaka Hidekazu
Published: November 2021

Relatively large dust grains (referred to as pebbles) accumulate at the outer edge of the gap induced by a planet in a protoplanetary disk, and a ring structure with a high dust-to-gas ratio can be formed. Such a ring has been thought to be located immediately outside the planetary orbit. We examined the evolution of the dust ring formed by a migrating planet, by performing two-fluid (gas and dust) hydrodynamic simulations. We found that the initial dust ring does not follow the migrating planet and remains at the initial location of the planet in cases with a low viscosity of α ∼ 10−4. The initial ring is gradually deformed by viscous diffusion, and a new ring is formed in the vicinity of the migrating planet, which develops from the trapping of the dust grains leaking from the initial ring. During this phase, two rings coexist outside the planetary orbit. This phase can continue over ∼1 Myr for a planet migrating from 100 au. After the initial ring disappears, only the later ring remains. This change in the ring morphology can provide clues as to when and where the planet was formed, and is the footprint of the planet. We also carried out simulations with a planet growing in mass. These simulations show more complex asymmetric structures in the dust rings. The observed asymmetric structures in the protoplanetary disks may be related to a migrating and growing planet.
Extended Calculations of Energy Levels and Transition Rates for Singly Ionized Lanthanide Elements. II. Tb−Yb
Authors: Radžiūtė Laima , Gaigalas Gediminas , Kato Daiji , Rynkun Pavel , Tanaka Masaomi
Published: November 2021

In this work, we continue large-scale ab initio computations for single ionized lanthanides. Extended atomic calculations for the set of ions from Pr ii (Z = 59) to Gd ii (Z = 64) have been performed in our previous work. In this study, ions from Tb ii (Z = 65) to Yb ii (Z = 70) are analyzed. By employing the same multiconfiguration Dirac–Hartree–Fock and relativistic configuration interaction methods that are implemented in the general-purpose relativistic atomic structure package GRASP2018, the energy levels and transition data of electric dipole (E1) transitions are computed. These computations are based on the strategies (with small variations) of Paper I. Accuracy of data is evaluated by comparing the computed energy levels with the data provided by the National Institute of Standards and Technology (NIST) database and with data from various methods. We obtain the average accuracy in the energy level compared with the NIST database: 6%, 5%, 4%, 5%, 3%, and 3% for Tb ii, Dy ii, Ho ii, Er ii, Tm ii, and Yb ii, respectively. We also provide extensive comparison of transition probabilities and wavelengths. Our results reach the average accuracy of transition wavelengths: 9%, 9%, 9%, 3%, 4%, and 11% for Tb ii, Dy ii, Ho ii, Er ii, Tm ii, and Yb ii, respectively.
A Provably Positive, Divergence-free Constrained Transport Scheme for the Simulation of Solar Wind
Authors: Zhang Man , Feng Xueshang , Liu Xiaojing , Yang Liping
Published: November 2021

In this paper, we present a provably positive, divergence-free constrained transport (CT) scheme to simulate the steady-state solar wind ambient with the three-dimensional magnetohydrodynamics numerical model. The positivity can be lost in two ways: one way is in the reconstruction process, and the other is in the updating process when the variables are advanced to the next time step. We adopt a self-adjusting strategy to bring the density and pressure into the permitted range in the reconstruction process, and use modified wave speeds in the Harten–Lax–van Leer flux to ensure the positivity in the updating process. The CT method can keep the magnetic fields divergence-free if the magnetic fields are divergence-free initially. Thus, we combine the least-squares reconstruction of the magnetic fields with the divergence-free constraints to make the magnetic fields globally solenoidal initially. Furthermore, we adopt a radial basis function method to interpolate variables at boundaries that can keep the magnetic field locally divergence-free. To verify the capability of the model in producing structured solar wind, the modeled results are compared with Parker Solar Probe (PSP) in situ observations during its first two encounters, as well as Wind observations at 1 au. Additionally, a solar maximum solar wind background is simulated to show the property of the model’s ability to preserve the positivity. The results show that the model can provide a relatively satisfactory comparison with PSP or Wind observations, and the divergence error is about 10−10 for all of the tests in this paper.
Understanding of Development Emergency Medical Services in Laos Emergency Medicine Residents
Authors: Apiratwarakul Korakot , Celebi Ismet , Tiamkao Somsak , Bhudhisawasdi Vajarabhongsa , Pearkao Chatkhane , Ienghong Kamonwon
Published: November 2021

BACKGROUND: Rising death tolls from traffic accidents are quickly becoming an inescapable problem in almost all countries around the world. That being said, the World Health Organization has launched an ambitious campaign aimed at reducing the death rate from traffic accidents by 50% in the next 10 years. Development of emergency medical services (EMSs) was the tool to success the goals, especially in low- to middle-income countries including Laos. However, no studies regard perspective of training EMS in Laos emergency medicine residents.

AIM: The aim of our work is to demonstrate the effect of EMS training for Laos emergency medicine residents to the development of the national policy in Lao’s EMS.

METHODS: A cross-sectional study was conducted in two countries (Laos and Thailand) from January 2020. The project activities were establishment of a command-and-control center, development of EMS support system, and training for emergency care professionals.

RESULTS: The eight Laos emergency medicine residents were enrolled between January and March 2020. After practicing as a dispatcher and emergency medical consultant in Thailand at Khon Kaen University, the participants from Laos found that all personnel gained experience and improved their knowledge of technology in EMS and organization management. This had a direct impact on improving confidence in their return to practice in Laos.

CONCLUSIONS: The human resource development through international collaboration between Thailand and Laos is contributing the effective knowledge and expertise learning in Laos. Moreover, the result of this training may provide the most effective care system resulting in the much-needed drop in the mortality rate of traffic accidents in Laos.
Phylogenetic analyses and morphological characters reveal two new species of Ganoderma from Yunnan province, China
Authors: He Jun , Luo Zong-Long , Tang Song-Ming , Li Yong-Jun , Li Shu-Hong , Su Hong-Yan
Published: November 2021

Ganoderma dianzhongensesp. nov. and G. esculentumsp. nov. are proposed as two new species based on both phenotypic and genotypic evidences. Ganoderma dianzhongense is characterized by the stipitate basidiomata, laccate and oxblood red pileus, gray white pore surface, duplex context and broadly ellipsoid basidiospores (9.0–12.5 × 6.5–9.0 μm) with coarse interwall pillars. Ganoderma esculentum is characterized by its basidiomata with slender stipe, white pore surface, homogeneous pileus context, and slightly truncate, narrow basidiospores (8.0–12.5 × 5.0–8.0 µm). Phylogenetic analyses were carried out based on the internal transcribed spacer (ITS), translation elongation factor 1-α (TEF1-α) and the second subunit of RNA polymerase II (RPB2) sequence data. The illustrations and descriptions for the new taxa are provided.
« Let’s get together » : fabriquer du patrimoine partagé, entre bureaucratisation de l’utopie et utopisation de la bureaucratie
Authors: Bortolotto Chiara
Published: November 2021

Cet article traite de la corrélation entre bureaucratie, idéologies d’échelle et utopie dans la production du « patrimoine partagé » comme incarnation de l’idéal porté par l’UNESCO pour rapprocher les peuples par-delà les frontières physiques et symboliques. L’utopie scalaire de l’UNESCO est explorée en mettant l’accent sur la promotion des « candidatures multi-nationales » à la Liste représentative du patrimoine culturel immatériel. Leur agentivité politique est illustrée par la candidature binationale de la lutte coréenne qui célèbre le partage d’une même culture par des pays rivaux. Ce dispositif est comparé à la rhétorique universaliste des débats qui ont accompagné l’inscription du reggae et du yoga sur la même liste. Une observation participante du dispositif global du patrimoine culturel immatériel met en évidence l’ingéniosité des fonctionnaires du patrimoine dans leur poursuite d’idéaux d’unité : des technologies administratives créant des représentations du patrimoine partagé sont conçues et mises en œuvre dans un processus qui rend l’utopie bureaucratique et la bureaucratie utopique.
Prevalence of Dark without Pressure and Angioid Streaks in Sickle Cell Disease
Authors: Lott Pooi Wah , McKibbin Martin
Published: November 2021

BACKGROUND AND OBJECTIVES:

To investigate the prevalence of areas of dark without pressure (DWOP) and angioid streaks (AS) in patients with sickle cell disease (SCD).

PATIENTS AND METHODS:

This was a consecutive series of 77 adults with SCD.

RESULTS:

DWOP appeared as multiple patches in 35 of the affected eyes and as a single lesion in 3 eyes. OCT finding demonstrated the ellipsoid layer was hyporeflective in DWOP. AS were identified in six cases (3.9%) and were bilateral in five cases. The prevalence of AS was higher with increasing age, being 67% in the patients older than age 45 years.

CONCLUSION:

The prevalence of DWOP in adults with SCD is 25% in this study, which is higher than previously reported, and the prevalence of AS is around 4%, which is midway between prior estimates. Recognition of the clinical examination and imaging features of DWOP reduce the need for additional investigation.

[
Ophthalmic Surg Lasers Imaging Retina
. 2021;52:620–622.]
Two-sided vertical competition considering product quality in a manufacturing-remanufacturing system
Authors: Li Kai , Li Yan , Liu Jing , Zhao Nenggui
Published: November 2021

We study two-sided vertical competition between a manufacturer and a supplier. The problem is formulated as a dynamic game where the supplier has more pricing power than the manufacturer. Based on the one-sided vertical competition modes with different recyclers as benchmarks, we derive optimal pricing and production decisions of manufacturer and supplier and further study the impacts of product quality on those decisions under the two-sided vertical competition mode. A key finding is that manufacturer/supplier prefers to be a follower rather than the first one to engage in recycling activities. Specifically, when the manufacturer/supplier has engaged in recycling activities, the supplier/manufacturer has an incentive to participate in recycling activities as well. We also find that high-quality remanufactured components/products can benefit manufacturer, supplier and consumers at the same time.
Les processus de valuation de ressources pédagogiques numériques : le cas du collectif AECIUT
Authors: Seurrat Aude , Benkouar Benyoucef
Published: November 2021

Cet article s’appuie sur une enquête menée actuellement dans le cadre d’un projet ANR (RENOIR-IUT) sur les ressources pédagogiques en IUT et vise à analyser les processus par lesquels des acteurs (des enseignants en IUT) attribuent de la valeur à des ressources pédagogiques qui leur sont proposées sur le site d’un collectif enseignant. Fondé sur une enquête consacrée à l’association AECIUT1 articulée à l’analyse techno-sémiotique de son site Web, le travail vise à questionner les conditions de production et d’appropriation des ressources. Ce qui fait que ces enseignants accordent une valeur particulière aux ressources numériques produites par ce collectif plus qu’à une pluralité d’autres ressources disponibles sur le sujet. Cet article part de l’idée que les valeurs peuvent être constituées comme des observables et que les pratiques de communication – en ligne et hors ligne – peuvent être appréhendées comme des processus d’attribution de valeurs.
Le numérique facilite-t-il l’accès ouvert aux communs scientifiques ?
Authors: Jullien Nicolas
Published: November 2021

L’économie de la science et des revues scientifiques est complexe. Pour mieux comprendre les trajectoires de basculement vers les publications ouvertes, cet article propose de décrire leur « modèle économique » et ce qu’Internet a changé. Après un rapide rappel des questions soulevées par l’accès ouvert, nous proposons d’étudier la revue scientifique comme un « commun de connaissance ». Cela nous fournit un cadre afin de structurer les enjeux pour chaque acteur de la revue, et ainsi de décrire les différents types de revues scientifiques existantes, autour de l’adéquation format-lectorat d’une part et système de validation scientifique d’autre part. Selon les modèles, le format d’accès ouvert peut varier, mais l’enjeu global est plus au niveau de l’accès aux bases de données d’articles (comme données ouvertes), que sur l’évolution du fonctionnement des revues scientifiques.
Additive Manufacturing on Building Construction
Authors: Guimarães A.S. , Delgado João M.P.Q. , Lucas S.S.
Published: November 2021

The future of construction will be directly connected with additive manufacturing (AM). It is easy to see the lack of consistency between jobs, labour inefficiency, schedule delays, delays on material delivery, exceeding budget projections and high percentage of material waste. Over the years, additive manufacturing has been a constant topic of discussion, in order to understand the limitations, applications and the overall impact on the cost of construction. In this work it is intended to present/discuss opportunities and challenges and the potential of AM to revolutionize the industry.
Numerical Research of a Solar Driven Bubble Pump for Diffusion Absorption Refrigeration Systems
Authors: Gurevich Bella , Zohar Amir
Published: November 2021

In conventional vapor compression and absorption refrigeration systems, a compressor or a mechanical pump, respectively circulates the refrigerant. Mechanical input, which is required by the compressor or the pump operation, contributes significantly to the noise level and lessens its reliability and portability. In contrast, diffusion absorption refrigeration (DAR) systems are heat-driven and contain no moving parts. Solar-driven diffusion absorption cooling system uses a low-grade heat to produce a cooling effect, and it's specially tuned for remote locations with high levels of solar radiation. This article studies the performance of a DAR system in Ashdod, Israel. Based on existing models in the literature and on experimental measurement of quantities such as the solar irradiance and the air temperature, the cooling capacity and the COP were simulated. Cooling capacity of the DAR system varies between 100 and 140 W, and COP between 0.09 and 0.17.
Heat Dissipation by Streams of Bifurcated Tubes
Authors: Nitesh Devaneyan , Aydin Murat , Aydin Eda , Miguel Antonio Ferreira
Published: November 2021

There is a need for solutions to provide sufficient cooling from power devices, which produce large amounts of heat. This paper focuses on the influence of design of bifurcated fluid streams to dissipate heat. In this study, a single Y-tubes, a double Y-tubes, and an X-tubes designs are studied numerically under space constraints. For a comprehensive and in-depth performance analysis, both heat dissipation and hydraulic performances are analyzed. The distributions of velocity and temperature in the fluid streams is simulated, also the flow resistances and dissipated heat are calculated. Based on the results obtained, a thermo-hydraulic performance factor is introduced for the designs under study. In addition, the accumulation of undesired substances on the wall surface (fouling) that may influence the heat exchanging capability is studied.
Letter to the Editor
Authors: Office Editorial
Published: November 2021

No abstract available.
Live Case Demonstrations are Essential for the Success of Pediatric Urology Meetings in India
Authors: Chandrasekharam VVS , Babu Ramesh , Srinivas S , Rao N Bhuvaneswar , Kumar A Narendra
Published: November 2021

Purpose:

The purpose of the study was to survey the opinion of delegates attending national pediatric urology meeting regarding live case demonstrations (LCDs) to see whether these can be replaced with taped case demonstrations (TCDs) in future.

Methods:

A questionnaire-based survey was conducted at the end of the 3-day annual conference and live operative workshop in pediatric urology. Apart from general data such as age of the respondent and type of practice setting, four key questions on LCDs with yes/no responses included: would you have attended this meeting if there were no LCDs? Are unedited videos (TCDs) as effective as LCDs for teaching? Do you think LCDs should be continued? Would you allow your child to be operated in LCD by an expert? For question 3, the outcomes were compared between junior surgeons (<45-year-old) and senior surgeons (>45-year-old).

Results:

On analysis, 88/140 (62%) respondents (95% confidence interval [CI]: 54%–70%) said that they would not have attended the meeting if there were no LCDs; 70/139 (50%) respondents (95% CI: 42%–58%) felt that TCDs may be an effective alternative to LCDs; 129/144 (90%) respondents (95% CI: 83%–94%) felt that LCDs should be continued. For question 4, 101/129 (79%) said they would allow their child to be operated in LCD by an expert, while 28 (21%) did not agree for their child to be operated in LCD. There was no significant difference between junior and senior surgeons regarding support for LCDs (P = 0.15).

Conclusions:

In the Indian scenario, LCDs were favored as an essential part of pediatric urology meeting, attract more participation, and are likely to be important for the success of the meeting.
Giant Calyceal Diverticulum in a Child with Solitary Kidney
Authors: Chattopadhyay Anindya , Biswas Somak Krishna , Halder Pankaj
Published: November 2021

Calyceal diverticuli are rare entities which are difficult to diagnose radiologically as they mimic various other pathology. Close follow up is essential even in asymptomatic individuals to prevent complications. The authors present a giant calyceal diverticulum in a solitary kidney in a child that was managed by open surgery.
Laparoscopic Surgery in Pediatric Upper Tract Urolithiasis
Authors: Gupta Chhabi Ranu , Khan Niyaz Ahmed , Sengar Mamta , Mohta Anup
Published: November 2021

Introduction:

Incidence of pediatric urolithiasis has increased over the last few decades. Procedures such as extracorporeal short wave lithotripsy, percutaneous nephrolithotripsy, and ureterorenoscopic lithotripsy are not widely available for pediatric age group in many developing countries. It is desirable that advantages of minimally invasive surgery be offered to selected cases with urolithiasis.

Materials and Methods:

All patients with pediatric upper tract urolithiasis managed laparoscopically from January 2015 to April 2020 were retrospectively reviewed.

Results:

A total of 38 patients were included. The mean age of the patients was 8 ± 2.85 years. Thirty-four patients (renal and upper ureteric) were managed through retroperitoneal approach, while those with lower ureteric calculi (n = 4) were approached transperitoneally. A total of eight patients required conversion to open technique. The stone clearance rate was 79% by laparoscopic approach alone. There were no procedure-related complications.

Conclusion:

Our study suggests that laparoscopic management for pediatric upper tract urolithiasis is a radiation-free, single-time curative treatment and is feasible in centers where facilities for other endoscopic procedures are unavailable.
Congenital Pulmonary Airway Malformation – A Histomorphological Spectrum of 15 Cases
Authors: Gupta Kanika , Singh Vishal , Mandal Shramana , Mallya Varuna , Singh Meeta , Khurana Nita , Sarin Y. K.
Published: November 2021

Objective:

Congenital pulmonary airway malformation (CPAM) is a rare developmental lung disease. The aim of this study is to analyze the histomorphological spectrum of CPAM in a series of 15 cases.

Materials and Methods:

A retrospective descriptive study of 15 cases of CPAM was carried out from 2013 to 2018 in our hospital, and cases were classified based on the Stocker's classification.

Results:

The age ranged from 4 days to 9 years (66.6% were infants). The left lung was most commonly involved (66.6%). The most common lobe was the left upper lobe (60%), followed by right lower lobe (20%). Grossly, cysts measured 0.2–5 cm, filled with mainly serous fluid with few having hemorrhagic and brownish mucoid secretions. On microscopy, single to multiple noncommunicating cysts of size 0.2–5 cm were seen, lined by ciliated columnar epithelium (60%), pseudostratified ciliated columnar epithelium (26.7%), mucin-secreting columnar epithelium (6.7%), and flattened epithelium (6.7%). Few cases showed smooth muscle (20%) and cartilage (13.3%) in the cyst wall. Chronic inflammation (73.3%) with dense histiocytic infiltrate (13.3%) was also seen. Emphysematous changes were also observed (13.3%). Cytomegalovirus inclusions (6.7%), zygomycete fungus (6.7%), and red hepatization (6.7%) were observed. The most common type was type II (60%), followed by type I (33.3%) and type IV (6.7%).

Conclusion:

Type II was the most common variant in this study. A careful observation should be done to look for fungal hyphae or viral inclusions.
Stress Management through Mind Engineering
Authors: Banerjee R. P.
Published: November 2021

Experiencing stress in our everyday life is only human. Be it altercations with peers, upcoming deadlines or unnerving life events which can’t be controlled. There’s good stress that motivates us, and there’s stress that’s unhealthy; it controls our thoughts and feelings, leading to insomnia, heart diseases and even mental health issues. So how do we stop sweating over small things and start living blissfully? Through mind engineering, we can! Stress Management through Mind Engineering takes the readers through the process of mind engineering to help them create a stressless mind. A mind that can bear the force of the external environment by tapping the power within. Read this book to not only win over stress but also eliminate the risk of burnouts, understand the cause of high stress, reflect on one’s actions and behaviour and ultimately live a happier, healthier life.
Ferrate (VI) as efficient oxidant for elimination of sulfamethazine in aqueous wastes: Real matrix implications
Authors: Lalhmunsiama  , Lalthazuala Levia , Tiwari Diwakar
Published: November 2021

The presence of antibiotics in aquatic environments has become a serious concern since they develop the antibiotic/multi-drug-resistant bacteria which further affect to living beings. The study intended to assess the freshly synthesized ferrate (VI) in the degradation of an important emerging micro-pollutant i.e., sulfamethazine (SMZ). Moreover, the real matrix implications are extensively conducted for implication of ferrate (VI) technology as safer and viable options. Batch reactor studies enabled the molar ratio of ferrate (VI) to sulfamethazine is 2:1 with overall rate constant 6,128 mM-2.min-1. Percentage elimination of sulfamethazine was observed Ca. 80% at initial sulfamethazine concentration 0.02 mM and ferrate (VI) dose 0.1 mM. Presence of several co-ions NaCl, Na2HPO4, NaNO3, oxalic acid and NaNO2 showed insignificant effect on elimination of sulfamethazine; whereas the efficiency of ferrate (VI) was lowered due to glycine and EDTA. Mineralization of sulfamethazine is significantly increased at lower pH value (pH 5.0). Further, the removal of sulfamethazine in the real water matrix showed that the elimination efficiency of sulfamethazine is almost unaffected as compared to the distilled water treatment. This implied that ferrate (VI) is a viable and greener option for treatment of emerging water pollutants to enhance the efficiency of existing wastewater treatment plants.
Impact of Covid-19 Pandemic on Study: Assessing Reading Habits of University Students in Bangladesh
Authors: Jahan Nusrat , Rahman Md. Aliur , Mohiuddin Mohammad Golam , Mansur Ahmed Al , Habib Ahsan , Mondol Md. Shamim
Published: November 2021

The world has been shaken and normalcy has been  stifled due to Covid-19 pandemic leading the affected people to adapt to, adopt new ways of life and reconstitute habit inviting activities other than those previously practiced. Reading habits of university students have been affected adversely by the unprecedented pandemic. While the students, during this period being distanced from the regular academic environment, have opted for alternative engagements, the time for reading and number of books covered have dwindled remarkably. This article examined the changed dynamics of both academic and nonacademic reading habits of the students at public and private universities in Bangladesh. Data were collected from 700 students through a questionnaire using Google form. The results show that reading habits have been adversely affected during this pandemic as 44.6% students read books only 1-2 hours whereas 57.4% of them spend 5-6 hours using electronic devices for multiple purposes mostly other than reading. This study recommends developing a strategy by the concerned authority starting from the state level to institutions to attract the learners and facilitate learning online with a rich and reliable reservatory of study materials with easy accessibility.
The Beginning of the Glass Age with Holographic Game Technology
Authors:   Computer Science Department, School of Computer Science, Bina Nusantara University, Jakarta Indonesia 11480, Udjaja Yogi , Minhuei Chang
Published: November 2021

The development of technology has now begun to shift to society 5.0, this technology has helped many human activities. The development of technology is also followed by the development of games, games in holographic form have been made by several developers, however, there are not many games in the holographic form that are marketed and played by many players. Hologram technology is a technology that is starting to develop at this time. There have been several games made from holograms, in fact, there are already tools to view or display holographic shapes. This paper explains that the creation and development of games using holographic technology has been around for decades. The development of the times has slowly begun to expand and develop knowledge about hologram technology by making hologram games and adding or developing ways of interacting with these hologram games. Keywords—Hologram Game Technology, 3D Hologram, Hologram for Game, Modern Technology
Implementation of a Thermal Image Processing System to Detect Possible Cases of Patients with COVID-19
Authors:   10.46338/ijetae1121_15, Claudio Brian Meneses , Tapia Luis Nuñez , Díaz Witman Alvarado , Mantari Alicia Alva
Published: November 2021

COVID-19 does not show signs of having disappeared, being a very contagious disease, the WHO recommended limiting the free movement of people, since from its appearance until May 1st, 2021, it caused the death of more than 3.2 million of people around the world. In Peru, it economically affected those people who generated income every day to survive, for this reason some activities were reactivated complying with the biosafety measures that are the use of mandatory mask and social distancing (more than 1 meter). Taking body temperature with an infrared thermometer is an optional measure, generating rejection by specialists, indicating that there is little evidence of its sensitivity and specificity and of its doubtful ability to detect fever. In view of this problem, this article will implement a thermal image processing system to detect possible cases of patients with COVID-19, in such a way that the system performs a more accurate measurement of body temperature, and it can be implemented in any place where such measurement is intended, helping to combat the spread of the virus that currently continues to affect many people. The system has a more accurate measurement of body temperature with an efficiency of 95% at 1 meter between the drone and the person, in such a way that if it presents a body temperature higher than 40°C it could be infected with COVID-19
Theoretical grounds of labour demotivation diagnostics in the light of eighth SDG
Authors:   Lviv University of Business and Law, Koshovyi Bohdan-Petro , Petryk Ilona , Yevstakhevych Andrii , Von-Nagy Ira
Published: November 2021

The eighth SDG concerns decent working conditions. A crucial role in supporting this SDG has a sustainable business. In this article, we have considered labour demotivation in the light of the eighth SDG. We stressed the importance of improving the diagnostics system of demotivation of labour for companies that want to increase profits and be socially responsible. During the literature review, we found a lack of research on labour demotivation and diagnostics. Therefore, we analysed the diagnostic systems' composition and substantiated the main stages, criteria, and functions of the diagnostic system of labour demotivation. We also discussed the prospects of integrating demotivation diagnostics into the enterprise management system. The results of this study can be the basis for further empirical analysis of labour demotivation and can be helpful for internal HR policies improvement
Current challenges for sustainable forestry management in Ukraine: production, taxation and investments issues
Authors:   Institute of  Agroecology and  Environment  management of NAAS, Furdychko Orest , Drebot Oksana , Yaremko Oleg , Bondar Volodymyr , Vysochanska Mariya , Sakharnatska Liudmyla
Published: November 2021

Ukraine's forestry has been experiencing systemic political, economic, social, and environmental problems for many years. This article aims to find new ways to balance production, taxation, and forestry investment to ensure sustainable development. We sought answers to three main questions: Does the modern mechanism of state regulation and forestry financing in Ukraine meet sustainability requirements? What changes will the critical problems of forest ecosystems arise in Ukraine in the long run? What are the prospects for the development of investment in forestry in Ukraine? To answer these questions, we conducted exploratory analyses of taxation and investment in forestry management. Then, we developed a multifactorial forecasting model to predict forest ecosystems' restoration state by 2035. Using the model, we characterized the relationship between ecological and economic factors for reforestation in the border regions of Ukraine. Finally, we analyzed the coefficients of forest capacity, yield and dynamics of afforestation. According to the results, we proposed: 1) to separate the functions of standard-setting and forest inventory from the function of forest land management; 2) to separate the function of economic activity and control over the implementation of forestry development plans; 3) to stimulate public control and increase effective monitoring of anthropogenic load, forest use and rehabilitation; 4) to improve the organizational and institutional management mechanism as a component of forest production which is the key to improving the forestry sustainability.
Alegorisasi Hagar Sebagai Gunung Sinai dan Yerusalem dalam Penafsiran Paulus
Authors: Sibarani Yosua
Published: November 2021

This article aims to explain the allegorization of Hagar and Mount Sinai in Paul's theology as written in Galatians 4:24-25 as a result of exegesis studies. To achieve this goal, the author uses a historical-grammatical approach. In addition, the author presents the interpretation debate by New Testament theologians about the text as consideration for deciding the interpretation following Paul's intent. In conclusion, Paul uses an allegorical interpretation of Galatians 4:24-25 by explaining that Hagar as Mount Sinai and Jerusalem is an allusion to the Old Testament and legalistic Judaism, not grace.
The value of conscious paternity as a priority direction in the vocational training of social workers
Authors: Durmanenko Evgenia , Cherneta Svitlana , Bychuk Iryna , Voloshenko Maryna , Tbinskiy Yaroslav
Published: November 2021

The objective of the research consisted in establishing and experimentally testing the methodology of formation of the value of conscious parenting in future specialists of social work, for its transformation into professional and evaluative orientation. Methods of analysis, systematization and generalization of ideas and scientific approaches, specification of practical tasks, the pedagogical experiment and pedagogical diagnostic methods were used to study the real state of the problem and achieve the objective of the research. As a result, based on the authors' interpretations of the main concepts investigated, a model for transforming the personal value of conscious parenting into a professional and value orientation has been suggested. A workshop has been suggested as an effective way of working. The authors established that the optimization of the process of formation of the value of conscious parenthood in social workers and its transformation into professional and value orientation, depends on the modification of the educational process in the institution of higher education through innovative processes, content and use of interactive forms and methods.
Brecha digital y estrategias didácticas en el contexto de la escuela Unidocente
Authors: Benites-Sigcho Gabriela del Carmen , Argüello-Fiallos Bélgica Elena
Published: November 2021

El objetivo de la investigación consistió en diagnosticar las estrategias didácticas que se pueden implementar para superar las dificultades que desencadena la brecha digital en el proceso de enseñanza aprendizaje en Ecuador. Para el estudio se ha tomado como referencia contextual, la escuela básica “Lcdo. Eugenio García García”, la cual funciona como un centro escolar Unidocente y presenta dificultades para que sus dos maestras puedan realizar su labor pedagógica, dado el contexto social en el que se encuentra la escuela. Metodológicamente, la investigación está sustentada en un modelo de investigación mixta, que combina el diseño de campo y y la aplicación de un cuestionario tipo Likert entre el alumnado de la institución, para describir sus habilidades digitales en el contexto educativo. Igualmente se realizan entrevistas a profundidad a las docentes que laboran en la institución. En el caso de los alumnos, aunque muestran ciertas competencias digitales, se encuentran falencias al momento de su aplicabilidad educativa. En cuanto a los docentes, hay un mayor compromiso y experticia digital; en todo caso, a nivel general y, a pesar de lo que puede pensarse, en este caso de estudio, no parece haber brecha digital significativa entre docentes y alumnos.
Monitoring and evaluation procedure with LMS Moodle
Authors: Belozertseva Natalia V. , Vaganova Olga I. , Akimova Irina V. , Lapshova Anna V. , Stepanov Roman A.
Published: November 2021

The purpose of the article is to develop recommendations for results processing in Moodle electronic system. Methodology: the authors presented formulas for calculating the reliability of the tests used to verify students' training, the description of what is required for monitoring, the actions of the teacher to perform a quality assessment system. The process of calculating the final grade for the course is presented, which will provide the necessary conditions for conducting student knowledge control. Results: in the process of study, it was concluded that modern methods of processing the data used during the control measures in higher education institutions within the framework of the Moodle system contribute to improving the graduates training.
Academic student fraud in longitudinal research design
Authors: Epanchintseva Galina , Zubova Lydmila , Kozlovskaya Tatyna , Volosova Nonna , Lebedenko Aleksei , Bukaev Nikolai
Published: November 2021

The authors emphasize the importance of studying academic fraud among students. This phenomenon takes on large-scale dimensions. The authors are convinced that the solution of the problem depends on the scientific knowledge of the psychological portrait of students. Within the framework of the personalist approach, the authors present a review of the scientific literature. The authors identified a problematic field of empirical research that would reveal the dynamics of students' subjective perceptions of a person who resorts to academic fraud. A sample of the study was formed, the author's questionnaire was presented. The results of a longitudinal study of the dynamics of subjective perceptions of cognitive characteristics, emotional manifestations, and behavioral patterns of a student's personality are presented for discussion. To complete the psychological portrait of the students, valid psychodiagnostic techniques were used in the study. The stages of the study are presented. The analysis of empirical data is based on the evidence-based methods of the statistical thesaurus. The findings of the study revealed the students’ ideas about the person resorting to plagiarism. In conclusion, the authors formulated step-by-step programs of psychological support for students to refuse to use various schemes of academic fraud.
Proyectos enfocados en la resolución de problemas y el pensamiento crítico en el nivel inicial
Authors: Herrera León Delci , Fernández-Otoya Fiorela Anaí , Sánchez-Chero Manuel Jesús , Arias-Chávez Dennis
Published: November 2021

La sociedad requiere de ciudadanos competentes y capaces de pensar de manera crítica. Con el objetivo de determinar la influencia de los Proyectos de Resolución de Problemas en el Pensamiento Crítico de los infantes del Nivel Inicial de Instituciones Educativas de la Red Volcán, se efectuó una investigación cuantitativa, de tipo experimental, con diseño preexperimental, a una muestra de 205 infantes. Para conocer el nivel de pensamiento crítico
se usó un test en dos momentos (pre y postest). Los resultados del pretest muestran al 100% de estudiantes en el nivel Inicio, mientras que, en el postest estos resultados mejoraron; un 63% estuvo En Proceso, 20% en Logro Esperado, 15% en Inicio y 2% en Logro Destacado. Se concluye que, existe una diferencia de 7,1 puntos entre los promedios obtenidos antes y después de aplicar los proyectos de resolución de problemas, demostrando su influencia positiva en el pensamiento crítico de los infantes.