bluuebunny/crossref_metadata_2025 huggingface dataset:
COMMUNICATION IN RELIGION DIFFERENCES ACCORDING TO THE GUIDE OF THE QUR'AN AND HADITH
Authors: Rokhman Saeful
Published: September 2022

Research purposes: To know communication in religious differences according to the guidance of the Qur'an and Hadith. Methods: Qualitative. Result: Based on the guidance of the Qur'an and Hadith, it can be concluded that communication with people of different religions includes: first; not carry out religious coercion, second; do not denounce the gods of other religions, third; to me my religion to you your religion, fourth; do good to followers of other religions, fifth; do good and do justice, and sixth; do not oppress followers of other religions
Investigating the Asymmetry of Magnetic Field Profiles of “Simple” Magnetic Ejecta through an Expansion-modified Flux Rope Model
Authors: Yu Wenyuan , Al-Haddad Nada , Farrugia Charles J. , Lugaz Noé , Regnault Florian , Galvin Antoinette
Published: September 2022

Magnetic clouds (MCs) are most often fitted with flux rope models that are static and have symmetric magnetic field profiles. However, spacecraft measurements near 1 au show that MCs usually expand when propagating away from the Sun and that their magnetic field profiles are asymmetric. Both effects are expected to be related, since expansion has been shown to result in a shift of the peak of the magnetic field toward the front of the MC. In this study, we investigate the effects of expansion on the asymmetry of the total magnetic field strength profile of MCs. We restrict our study to the simplest events, i.e., those that are crossed close to the nose of the MC. From a list of 25 such “simple” events, we compare the fitting results of a specific expanding Lundquist model with those of a classical force-free circular cross-sectional static Lundquist model. We quantify the goodness of the fits by the χ
2 of the total magnetic field and identify three types of MCs: (i) those with little expansion, which are well fitted by both models; (ii) those with moderate expansion, which are well fitted by the expanding model, but not by the static model; and (iii) those with expansion, whose asymmetry of the magnetic field cannot be explained. We find that the assumption of self-similar expansion cannot explain the measured asymmetry in the magnetic field profiles of some of these magnetic ejecta (MEs). We discuss our results in terms of our understanding of the magnetic fields of the MEs and their evolution from the Sun to Earth.
Changes in the Na D1 Absorption Components of η Carinae Provide Clues on the Location of the Dissipating Central Occulter
Authors: Pickett Connor S. , Richardson Noel D. , Gull Theodore R. , Hillier D. John , Hartman Henrik , Ibrahim Nour , Lane Alexis M. , Strawn Emily , Damineli Augusto , Moffat Anthony F. J. , Navarete Felipe , Weigelt Gerd
Published: September 2022

The Na D absorption doublet in the spectrum of η Carinae is complex, with multiple absorption features associated with the Great Eruption (1840s), the Lesser Eruption (1890s), and the interstellar clouds. The velocity profile is further complicated by the P Cygni profile originating in the system’s stellar winds and blending with the He i
λ5876 profile. The Na D profile contains a multitude of absorption components, including those at velocities of −145 km s−1, −168 km s−1, and +87 km s−1, which we concentrate on in this analysis. Ground-based spectra recorded from 2008 to 2021 show significant variability of the −145 km s−1 absorption throughout long-term observations. In the high-ionization phases of η Carinae prior to the 2020 periastron passage, this feature disappeared completely but briefly reappeared across the 2020 periastron, along with a second absorption at −168 km s−1. Over the past few decades, η Carinae has been gradually brightening, which is shown to be caused by a dissipating occulter. The decreasing absorption of the −145 km s−1 component, coupled with similar trends seen in absorptions of ultraviolet resonant lines, indicate that this central occulter was possibly a large clump associated with the Little Homunculus or another clump between the Little Homunculus and the star. We also report on a foreground absorption component at +87 km s−1. Comparison of Na D absorption in the spectra of nearby systems demonstrates that this redshifted component likely originates in an extended foreground structure consistent with a previous ultraviolet spectral survey in the Carina Nebula.
Mapping the Thermal Condensation of Diffuse H i in the North Celestial Pole Loop
Authors: Taank Mukesh , Marchal Antoine , Martin Peter G. , Vujeva Luka
Published: September 2022

The North Celestial Pole Loop (NCPL) provides a unique laboratory for studying the early stages of star formation, in particular the condensation of the neutral interstellar medium (ISM). Understanding the physical properties that control the evolution of its contents is key to uncovering the origin of the NCPL. Archival data from the NCPL region of the GHIGLS 21 cm line survey (9.′4) are used to map its multiphase content with ROHSA, a Gaussian decomposition tool that includes spatial regularization. Column density and mass fraction maps of each phase were extracted along with their uncertainties. Archival data from the DHIGLS 21 cm (1′) survey are used to further probe the multiphase content of the NCPL. We have identified four spatially (and dynamically) coherent components in the NCPL, one of which is a remarkably well-defined arch moving at about 14 km s−1 away from us that could be a relic of the large-scale organized dynamical process at the origin of the phase transition. The cold and lukewarm phases together dominate the mass content of the neutral gas along the loop. Using absorption measurements, we find that the cold phase exhibits slightly supersonic turbulence.
Cosmic-Ray Ionization Rate in Protoplanetary Disks with Sheared Magnetic Fields
Authors: Fujii Yuri I. , Kimura Shigeo S.
Published: September 2022

We investigate the effects of magnetic-field configurations on the ionization rate by cosmic rays in protoplanetary disks. First, we consider cosmic-ray propagation from the interstellar medium (ISM) to the protoplanetary disks and showed that the cosmic-ray density around the disk should be 2 times lower than the ISM value. Then, we compute the attenuation of cosmic rays in protoplanetary disks. The magnetic fields in the disk are stretched to the azimuthal directions, and cosmic rays need to detour while propagating to the midplane. Our results show that the detouring effectively enhances the column density by about two orders of magnitude. We employ a typical ionization rate by cosmic rays in diffuse ISM, which is considered too high to be consistent with observations of protoplanetary disks, and find that the cosmic rays are significantly shielded at the midplane. In the case of the disk around IM Lup, the midplane ionization rate is very low for r ≲ 100 au, while the value is as large as a diffuse ISM in the outer radii. Our results are consistent with the recent Atacama Large Millimeter/submillimeter Array observation that indicates the radial gradient in the cosmic-ray ionization rate. The high ionization rate in the outer radii of disks may activate the magnetorotational instability that was thought to be suppressed due to ambipolar diffusion. These results will have a strong influence on the dynamical and chemical evolutions of protoplanetary disks.
The Sparkler: Evolved High-redshift Globular Cluster Candidates Captured by JWST
Authors: Mowla Lamiya , Iyer Kartheik G. , Desprez Guillaume , Estrada-Carpenter Vicente , Martis Nicholas S. , Noirot Gaël , Sarrouh Ghassan T. , Strait Victoria , Asada Yoshihisa , Abraham Roberto G. , Brammer Gabriel , Sawicki Marcin , Willott Chris J. , Bradac Marusa , Doyon René , Muzzin Adam , Pacifici Camilla , Ravindranath Swara , Zabl Johannes
Published: September 2022

Using data from JWST, we analyse the compact sources (“sparkles”) located around a remarkable z
spec = 1.378 galaxy (the ‘Sparkler) that is strongly gravitationally lensed by the z = 0.39 galaxy cluster SMACS J0723.3-7327. Several of these compact sources can be cross-identified in multiple images, making it clear that they are associated with the host galaxy. Combining data from JWSTs Near-Infrared Camera (NIRCam) with archival data from the Hubble Space Telescope (HST), we perform 0.4–4.4 μm photometry on these objects, finding several of them to be very red and consistent with the colors of quenched, old stellar systems. Morphological fits confirm that these red sources are spatially unresolved even in the strongly magnified JWST/NIRCam images, while the JWST/NIRISS spectra show [Oiii] λ5007 emission in the body of the Sparkler but no indication of star formation in the red compact sparkles. The most natural interpretation of these compact red companions to the Sparkler is that they are evolved globular clusters seen at z = 1.378. Applying Dense Basis spectral energy distribution fitting to the sample, we infer formation redshifts of z

form
∼ 7–11 for these globular cluster candidates, corresponding to ages of ∼3.9–4.1 Gyr at the epoch of observation and a formation time just ∼0.5 Gyr after the Big Bang. If confirmed with additional spectroscopy, these red, compact sparkles represent the first evolved globular clusters found at high redshift, which could be among the earliest observed objects to have quenched their star formation in the universe, and may open a new window into understanding globular cluster formation. Data and code to reproduce our results will be made available at http://canucs-jwst.com/sparkler.html.
Let It Go: Geophysically Driven Ejection of the Haumea Family Members
Authors: Noviello Jessica L. , Desch Steven J. , Neveu Marc , Proudfoot Benjamin C. N. , Sonnett Sarah
Published: September 2022

We present a new model for Haumea’s formation and evolution that relies on geophysical and geochemical data informed from observations of Haumea and meteorites to explain the characteristics of Haumea and its dynamical family. We hypothesize that after the impact of two partially differentiated Kuiper Belt objects, Haumea’s rocky core grew, decreasing its moment of inertia (MOI), spinning it up to the point that icy material was ejected from its surface. This ice, carrying about 3% of Haumea’s mass and 14% of its initial angular momentum, comprises the Haumean dynamical family and the ring system and moons observed today. Later, melted ice hydrated Haumea’s core and it grew, increasing Haumea’s MOI and spinning it down to the modern value. We use the geophysical code kyushu to demonstrate that solutions exist for a Haumea in hydrostatic equilibrium at each of these hypothesized stages. Geochemical modeling using the IcyDwarf code constrains the formation of Haumea’s core and the creation of the collision family to have occurred after roughly 150–160 Myr of solar system evolution (4.41 ± 0.01 Gyr ago). Hydration of the core was complete by about 0.20 Gyr, but a substantial subsurface ocean with half the mass of Earth’s oceans persisted until it froze at about 0.45 Gyr, making Haumea the solar system’s most distant potential relict ocean world.
Mucoepidermoid carcinoma of the trachea in a 9-year-old male child: case report and review of literature
Authors: Uppal Deepak Kumar , Madan Renu , Peters Nitin J. , Bal Amanjit , Ballari Nagarjun , Goyal Shikha , Khosla Divya
Published: September 2022

Mucoepidermoid carcinoma (MEC) is most common malignancy of minor salivary glands in adults. Pulmonary MEC is extremely uncommon comprising of only 0.1%–0.2% of the primary lung malignancies and <1% of primary bronchial tumors. It is even rarer in children and literature limited to few case reports only. Here we present a case report of a 9-year-old boy diagnosed with primary MEC of trachea along with review of the literature. A 9-year-old male child presented with complaint of dry cough for two years which was later associated with shortness of breath after one year. Bronchoscopic examination revealed a growth arising from right lateral wall of carina occluding 50% of the lumen and detailed histopathological examination revealed it to be a MEC of the trachea. Patient underwent local excision of the tumor with primary anastomosis. In view of positive margins adjuvant radiotherapy of 60 Gy in 30 fractions were given to the tumor bed. Patient tolerated the treatment well and is disease free at 6 months follow-up. Experience with MEC of the trachea in children is limited and optimal treatment protocols have not been defined, with current treatment mainly extrapolated from MEC of the salivary glands.
Exposure Time of Silica Dust and the Incidence of Oxidative Stress, Inflammation, and Fibrosis in Rat Lungs
Authors: Artana I. Gusti Ngurah Bagus , Artini I. Gusti Ayu , Arijana I. Gusti Kamasan Nyoman , Rai Ida Bagus Ngurah , Indrayani Agung Wiwiek
Published: September 2022

BACKGROUND: Until now, exposure to silica dust is still a health problem worldwide. Silica exposure in the lungs will cause pulmonary fibrosis which is initiated by inflammation. However, the results of several studies regarding the duration of inflammation and fibrosis are still inconsistent. There was a role of oxidative stress in silicosis, but there were also inconsistencies in terms of when oxidative stress occurs in silica exposure.
AIM: This study aimed to study the toxic effects of silica dust exposure by looking at the picture of inflammation and fibrosis and malondialdehyde (MDA) levels in lung tissue during the observation period of 7 days, 14 days, 21 days, and 28 days.
METHODS: This study used a randomized post-test only control group design. The research sample was male Wistar rat (Rattus norvegicus), aged 6–10 weeks, body weight 150–200 g (divided into 5 groups: Control group, day 7 group, group day 14, group day 21, and group day 28). We administered silica suspension through intratracheal injection of 30 mg/rat on 0.5 mL of volume. Examination of MDA level was using the ELISA technique; histopathological examination of the liver used hematoxylin-eosin (HE) staining to determine inflammation and fibrosis. Statistical test using one-way ANOVA or Kruskal–Wallis followed by post hoc test.
RESULTS: The results of our study found that intratracheal silica exposure increased MDA levels on the 7th day, increased the accumulation of collagen from the 14th day, and increased the pulmonary inflammation score on the 14th day (p < 0.05).
CONCLUSIONS: It was concluded that silica exposure caused significant oxidative stress on day 7 as well as significant inflammation and pulmonary fibrosis on day 14.
Physical activity and cardiac rehabilitation in COVID-19 patients with cardiovascular complications
Authors: Cherneva Zh. , Cherneva R.
Published: September 2022

Recent data has revealed the cardiovascular complications of COVID-19 infection. The mechanism of cardiovascular impairments involves binding of severe acute respiratory syndrome (SARS) coronavirus-2 (CoV-2) to the protein angiotensin-converting enzyme 2 (ACE2), thus penetrating into the cells. There are other mechanisms, most of which are under research and will be explained. Cardiovascular complications of COVID-19 infection are heart failure, cardiomyopathy, acute coronary syndrome, arrhythmias, and venous thromboembolism. This article aims to collect scientific evidence by exploring PubMed, Scopus, and Pedro databases to show the cardiovascular complications of COVID-19 infection and the benefit of physiotherapy treatment for these patients. Exercise training is a powerful element in physiotherapy and an important part of cardiac rehabilitation. It contributes to significant changes of the cardiovascular system - recovery of endothelial dysfunction and prevention of thromboembolic complications. In conclusion, due to the wide variety of programs of exercise training, as well as patient monitoring, physical activity is appropriate strategy for the treatment of cardiovascular complications of various degrees in post-COVID patients. 
Orthoptera in the early stages of post-arable rewilding in south-east England
Authors: Gardiner Tim , Casey Dorothy
Published: September 2022

The ideal aim of rewilding is to restore natural processes to create ‘self-willed’ ecosystems involving the creation of large areas of habitat subject to stochastic disturbance, connected by favorable corridors for species to disperse along. Reversion of arable farmland to grassland and scrub habitats on Black Bourn Valley nature reserve in Suffolk (south-east England) through non-intervention allowed succession to occur largely unmanaged. Fields in the early stages of rewilding (4–14 years) are found at Black Bourn Valley, while pond creation has been extensive since 2010, creating water edge habitat and heterogeneity to the re-establishing grassland. Monitoring of Orthoptera revealed statistical evidence that species diversity/richness and field grasshopper Chorthippus brunneus (Thunberg, 1815), meadow grasshopper Pseudochorthippus parallelus (Zetterstedt, 1821), common groundhopper Tetrix undulata (Sowerby, 1806) and slender groundhopper Tetrix subulata (Linnaeus, 1758) were in higher abundance in fields ≥8 years since arable cropping ceased compared to those 4 years post reversion. Fields ≥8 years old were probably favorable due to the presence of microhabitats for basking and egg-laying orthopterans that included ant hills, sparsely vegetated pond edge and open swards with an abundance of fine-leaved grasses (Agrostis and Festuca spp.) and a low abundance of leaf litter. Lagomorph grazing by wild brown hare Lepus europaeus and rabbit Oryctoloagus cuniculus was critical in maintaining exposed soil for Orthoptera in the older fields, while deer paths appeared to create microhabitats that may be utilized by Orthoptera. We postulate that rewilding schemes on arable farmland should use a Rewilding Max approach and avoid the frequent usage of domestic livestock, relying on wild lagomorph and ungulate grazers to maintain an open mosaic habitat structure with only intermittent cattle, horse, or sheep grazing.
Que font trois concombres sur une Cène peinte par Carlo Crivelli en 1488 ?
Authors: Bauer Olivier
Published: September 2022

Olivier Bauer explique ce que pouvaient évoquer des concombres peints sur une Cène vénitienne à la fin du Moyen Âge. Après avoir identifié leurs valeurs lexicographique, diététique, gastronomique et symbolique, examiné l’hypothèse qu’ils seraient la signature de l’artiste, il conclut que les concombres donnent une saveur particulière à l’œuvre et partant, à l’épisode biblique qu’il illustre ainsi qu’au rite liturgique qu’il évoque.
La souffrance au travail : néologisme, tautologie ou antagonisme ?
Authors: Deharo Gaëlle , Point Sébastien , Gallinari François
Published: September 2022

La souffrance au travail est-elle le fruit d’une construction sociale pathogène érigée sur des fondations tant organisationnelles que personnelles ? Cet article propose une analyse approfondie de la notion de souffrance au travail. A l’issue d’une revue de la littérature, nous montrons que la souffrance naît d’un décalage entre les facteurs organisationnels et les facteurs personnels. Si bien qu’une bonne compréhension du phénomène de souffrance au travail nécessite de recentrer la perspective de l’individu vers la situation de travail afin d’identifier et d’appréhender les différents leviers d’action.
Intuition et Intelligence Artificielle : L’arbitrage du Haut Quotient Intellectuel
Authors: Mouillot Philippe
Published: September 2022

Prendre une décision consiste à faire un choix parmi plusieurs propositions. Pour y parvenir, l’organisation peut soit mobiliser une I.A., soit l’expertise d’un manager qui, par nature ou urgence, peut accorder du crédit à son intuition. Cette dernière est à la croisée de l’expérience, de l’intelligence cognitive et de l’intelligence émotionnelle. Étrangement, si les méthodes confirmatoires et exploratoires associent souvent I.A. et intuition, elles ne mobilisent pas l’intelligence des Hauts Quotients Intellectuels (HQI). C’est ce manque que cet article comble ici en proposant un nouveau modèle intégratif de prise de décision.
La nouveauté typographique et les métamorphoses de l’imprimé sous la monarchie de Juillet
Authors: Morlighem Sébastien
Published: September 2022

En typographie, la nouveauté a longtemps été promue grâce à une catégorie d’imprimés qu’on appelle « spécimen ». Pour autant, cet objet protéiforme n’en est pas toujours le support exclusif. En France, pendant une période allant pratiquement de la fin du règne de Louis XVIII aux premières années de la monarchie de Juillet, une vague de caractères novateurs venus d’outre-Manche transforme la quasi-totalité des imprimés fixes et mobiles, au grand dam des uns et à la grande joie des autres. Les affiches accueillent la créativité débordante des fonderies ; les journaux ouvrent leurs pages à l’effervescence publicitaire en harmonie avec une société de consommation émergente. La composition des annonces se diversifie avec audace, à un tel point qu’elle imprègne le champ de l’édition littéraire. La charge visuelle de la typographie atteint une intensité jusqu’alors inégalée. Un genre va peu à peu se démarquer parmi cette offre démultipliée : l’antique, ou lettre sans empattements. Héritière d’une tradition archaïque régénérée, elle devient à son tour, au seuil de la modernité, une figure du renouvellement. Le récit de son apparition et de son déploiement est bien différent si on s’en tient au spécimen comme seul fil conducteur. En prenant le parti d’en rechercher les premières traces dans la presse et la publicité, la texture d’un tel récit gagne ainsi en justesse et en richesse, laissant augurer in fine les prémisses d’une histoire visuelle de la typographie.
Les étrangers et la culture publicitaire
Authors: Bonnardel-Mira Roxane
Published: September 2022

Rarement croisées, l’histoire de la publicité et celle des migrations et mobilités permettent d’interroger l’acceptabilité des signes étrangers dans la culture urbaine. Nous proposons de discuter les effets de la présence des étrangers à Paris sur la culture publicitaire depuis son élaboration à la fin du xix e  siècle à son renouveau dans les années 1920, soit dans une période de diversification des origines des étrangers parisiens et de mutation des discours xénophobes. L’usage de composantes étrangères dans les pratiques et représentations publicitaires est facilité par la diffusion d’un goût pour l’exotisme. Cependant, en dehors des mises en scène d’une altérité consommable, les signes publicitaires produits par les étrangers restent au seuil de la culture urbaine parisienne dont les contours s’avèrent mouvants selon les quartiers.
Les graphistes : un groupe professionnel émergent dans la France des années 1960
Authors: Truxa Laura
Published: September 2022

À partir de l’examen du Trait d’union graphique , bulletin du Syndicat National des Graphistes Publicitaires, l’article propose un regard sociohistorique sur l’émergence du groupe professionnel des graphistes au cours des années 1960. Dans le contexte d’une segmentation croissante de la production publicitaire, le syndicat met en œuvre diverses stratégies de professionnalisation. Il s’efforce avant tout de regrouper en une communauté identifiable un certain nombre de producteurs d’images publicitaires, jusqu’alors désignés indifféremment comme dessinateurs ou créateurs publicitaires, et milite pour une reconnaissance institutionnelle de leur pratique. Au fil de la décennie, précarisés par l’essor des agences de publicité et menacés par le développement de la photographie publicitaire, les graphistes tentent de se différencier de leurs concurrents ainsi que des publicitaires. Ils vont alors défendre leur marché de travail en cherchant à produire une définition esthétique et idéologique de leur activité, tantôt comme art, tantôt comme expertise. La constitution du champ du graphisme apparaît ainsi fondée sur une émancipation rhétorique vis-à-vis de la publicité, et une lutte symbolique pour le monopole de sa légitimité culturelle.
The Lived Experiences of New Nurses During the COVID-19 Pandemic and Their Contributions to Nursing Education and Professional Development
Authors: Suplee Patricia D. , Jerome-D'Emilia Bonnie , Linz Sheila
Published: September 2022

Background

The COVID-19 pandemic had a major impact on new nurses' transition to the staff nurse role in hospital settings. New staff nurses were not prepared to care for COVID-19 patients based on their previous nursing education.

Method

A qualitative descriptive design with purposive sampling was used for this study. Twenty-nine new nurses were recruited. They were interviewed using a semi-structured guide to elicit data that were coded and analyzed using content analysis.

Results

Five themes were identified: “You might have to risk your own life to save others,” “I wish I had developed a thicker skin,” “There is real world and there is nursing school,” “Learning how to handle your own mental health,” and “What I would tell them.”

Conclusion

New nurses described their preparedness from baccalaureate education to clinical practice as insufficient in certain areas that were needed in the care of COVID-19 patients. Nurse educators who teach in pre-licensure and hospital orientation programs can revise or expand on the themes voiced by new nurses in order to improve their transition to the staff nurse role.

[
J Contin Educ Nurs
. 2022;53(10):451–459.]
Design of electromagnetic cloak with sequentially connected rectangular split ring resonators for S-band applications
Authors: Srilatha K , Madhav B T P , Krishna J , Swamy Banothu Y V N R , Badisa Anil
Published: September 2022

An electromagnetic (EM) invisible cloak is designed and analyzed with serially interconnected split ring resonators (SRRs). The cloak consists of an array of a network of split ring resonators which operates at a 3 GHz resonating frequency. The split ring resonators are connected with transmission line and are wrapped around the cylindrical object. Cloak coupled with EM waves gets transferred around the cylindrical object and received to the other side of transmission. Scattering cross section (SCS) is analyzed for both cases, which results in the effect of resonance. The total scattering cross section of the cloaked object is reduced by using SRRs. The simulated and measured results are in great agreement with each other. The transmission-line-connected SRR cloak is useful for S-band applications specifically at 3 GHz resonance.
ConvWin-UNet: UNet-like hierarchical vision Transformer combined with convolution for medical image segmentation
Authors: Feng Xiaomeng , Wang Taiping , Yang Xiaohang , Zhang Minfei , Guo Wanpeng , Wang Weina
Published: September 2022

Convolutional Neural Network (CNN) plays a vital role in the development of computer vision applications. The depth neural network composed of U-shaped structures and jump connections is widely used in various medical image tasks. Recently, based on the self-attention mechanism, the Transformer structure has made great progress and tends to replace CNN, and it has great advantages in understanding global information. In this paper, the ConvWin Transformer structure is proposed, which refers to the W-MSA structure in Swin and combines with the convolution. It can not only accelerate the convergence speed, but also enrich the information exchange between patches and improve the understanding of local information. Then, it is integrated with UNet, a U-shaped architecture commonly used in medical image segmentation, to form a structure called ConvWin-UNet. Meanwhile, this paper improves the patch expanding layer to perform the upsampling operation. The experimental results on the Hubmap datasets and synapse multi-organ segmentation dataset indicate that the proposed ConvWin-UNet structure achieves excellent results. Partial code and models of this work are available at https://github.com/xmFeng-hdu/ConvWin-UNet.
La escalera de ojo abierto del Palacio Di Majo en Nápoles entre geometría y equilibrio
Authors: Zerlenga Ornella , Cennamo Claudia , Cusano Concetta , Cirillo Vincenzo
Published: September 2022

Las escaleras representan una de las más imponentes expresiones arquitectónicas del edificio. Varios autores han presentado muchas publicaciones a lo largo de los años sobre este tema para entender cómo han sido diseñadas y cómo se sostienen. Este trabajo se trata sobre un tipo específico de escalera de albañilería, conocida como escalera “de ojo abierto” o “a la romana”. El objetivo es demostrar que en las escaleras con bóvedas de fábrica existe una estrecha relación entre la forma y su comportamiento estático. La geometría y la construcción son imprescindibles para su estabilidad. Los autores han demostrado esta tesis estudiando la escalera de ojo abierto del Palacio Di Majo en Nápoles, cuya estructura principal está constituida por bóvedas de toba. La primera parte del artículo presenta una descripción detallada de las características geométricas y arquitectónicas de la escalera. La segunda parte, explica el equilibrio de estas escaleras a partir de la teoría del equilibrio de estructuras de fábrica de Heyman.
A Survey on Deep Learning Techniques in Fruit Disease Detection
Authors: Goel Somya , Pandey Kavita
Published: September 2022

The improvement in computer vision techniques made the implementation of various agriculture related problems easy. One such problem is fruit disease detection. There has been enormous research on different fruits like the apple, mango, olive, kiwi, orange, passion fruit, and others using deep learning techniques. This article summarizes the major contributions of this field over past few years. As per the authors' knowledge, there is no survey paper specifically on fruit disease detection using deep learning techniques. The technical analysis of deep learning techniques to predict diseases in fruits have been done in this article. The study also presents a comparative study of image acquisition, image pre-processing, and segmentation techniques along with the deep learning models used. The study concluded the fact that the best fit deep learning model can be different depending on the computation power of the system and the data used. Directions of future research have also been discussed in the article.
Mobile Multi-Brand Loyalty Programs
Authors: Aydin Gokhan
Published: September 2022

This study, based on value theory, aims to shed light on our understanding of changing consumer perspectives on loyalty programs (LPs) within the digitally transformed retail environment by assessing the significance of value perceptions (i.e., monetary, hedonic, symbolic, knowledge) provided by LP benefits on member satisfaction. The value theory was expanded with the addition of personalization and information disclosure comfort constructs in accordance with the literature on mobile application adoption. The results of an online survey study on two leading coalition LPs in Turkey indicate that the monetary, hedonic, and symbolic values established by LP benefits are positively related to satisfaction. Furthermore, personalization was found to be a major factor that indirectly influences satisfaction through different perceptions of value. Privacy concerns, on the other hand, were found to have a significant but weak influence on satisfaction. Finally, the well-established effect of satisfaction on attitudinal loyalty was also confirmed.
Food Sustainability, Cyber-Biosecurity, Emerging Technologies, and Cybersecurity Risks in the Agriculture and Food Industries
Authors: Nobles Calvin , Burrell Darrell Norman , Waller Tyrone , Cusak Austin
Published: September 2022

The United Nations forecasts that by 2050, the world's population will reach 9.8 billion and 11.2 billion in 2100. An ever-growing global population threatens food security, accompanied by an increasing food shortage and relentless cybersecurity attacks. Agriculture 4.0, smart farming, and precision farming are essential to provide the technological breakthroughs to increase agricultural production while simultaneously expanding cybersecurity risks in the agriculture and food industries. With a global cybersecurity talent shortage and increasing cyber-attacks on the agriculture and food industries, there is a dire need to address cybersecurity solutions for the agriculture and food industries. A developing area in agriculture is cyberbiosecurity, an integrated concept of biosecurity and cybersecurity underline the need to safeguard systems, humans, animals, and plants from biological mischiefs, such as bioterrorism, environmental terrorism, infections, plagues, and pandemics. This paper explores these complex dynamics through an exploration of current and emerging literature.
An Assessment of Multi-copter Noise in Edgewise Flight
Authors:   Rensselaer Polytechnic Institute, Smith Brendan ,   Embry-Riddle Aeronautical University, Lyrintzis Anastasios , Gandhi Farhan
Published: September 2022

This study examines the acoustic behavior in forward speeds of 0, 15, 30, and 60 knots of manned-size, multi-rotor, eVTOL aircraft in quadcopter, hexacopter, and octocopter configurations. The rotors are assumed to have constant RPM and are controlled through collective pitch, with orthogonal phasing between rotors. All configurations share the same disk loading and hover tip Mach, with the rotor radius decreasing and the RPM increasing as the number of rotors increase. The simulations use the Rensselaer Multicopter Analysis Code (RMAC) for the aerodynamic loads coupled with the PSUWOPWOP code for noise predictions at an observer hemisphere. From the results, it is shown that at higher forward flight speeds, where loading noise becomes more dominant, high elevation angles (below the vehicle) show peak noise for all configurations. Asymmetry in the number of outside advancing blades, such as on the plus quadcopter, causes higher noise levels for the left (advancing) side. In-plane directivity patterns that show large decreases due to signal cancellations in inter-boom noise are shown to progressively diminish at larger forward speeds, with lower reductions for the hexacopter and octocopter configurations. The total acoustic radiated power is also compared with the single rotor for all multicopter configurations. The comparison shows that the acoustic power versus the single rotor power is decreasing as we increase the number of rotors or the forward speed.
Dragonfly - Aerodynamics during Transition to Powered Flight
Authors:   Pennsylvania State University, Cornelius Jason ,   Johns Hopkins University Applied Physics Lab, Adams Douglas ,   NASA Ames Research Center, Young Larry , Langelaan Jack , Opazo Tomas , Schmitz Sven , Rodovskiy Lev , Villac Benjamin
Published: September 2022

The Dragonfly lander will enter the Titan atmosphere following an approximate 7–10-year journey through space inside its aeroshell. After atmospheric entry, deployment of the main parachute, and heatshield release, the lander will begin its transition to powered flight (TPF). TPF is a maneuver sequence used for mid-air deployment of the Dragonfly rotorcraft lander. The sequence starts just after lander release with the rotors lightly loaded and finishes when a steadystate descent condition has been attained. Mid-air deployment of a multicopter unmanned aerial system is a multidisciplinary problem involving controller choice and tuning, trajectory planning and optimization, and computational fluid dynamics analyses. This paper is an introduction to the transition of rotor flow states in TPF from the windmill brake state, through the turbulent wake state and vortex ring state, and the successful emergence into a normal operating state. A particle swarm optimized controller’s nominal trajectory is plotted on a rotor aerodynamics state chart to show the trajectory’s path through the flow states along the TPF maneuver. Results of preliminary CFD simulations show the variance of individual rotor thrust and power in the early stages of TPF followed by a successful stabilization of rotor performance. Interactional aerodynamic studies also characterize the pre-release flowfield around the lander to be benign at the start of the maneuver. Additionally, results for the lander in steady axial descent show a previously observed coaxial rotor shielding phenomenon of the upper rotor from the effects of vortex ring state.
System Identification of a Thrust-vectoring, Coaxial-rotor-based Gun-launched Micro Air Vehicle in Hover
Authors:   Texas A&M University, Denton Hunter ,   US Army Research Lab, Kang Hao , Benedict Moble , McCurdy Grant
Published: September 2022

This paper discusses the flight testing and system identification of a compact, re-configurable, rotary-wing micro air vehicle concept capable of sustained hover and could potentially be launched from a 40mm grenade launcher. By launching these energy-constrained platforms to a target area, the mission range could be significantly improved. The vehicles used in the paper has a mass of 345 grams. The vehicle design features coaxial rotors with foldable blades, and a thrust-vectoring mechanism for pitch and roll control. Yaw control was accomplished with a specialized counterrotating motor system composed of two independently controlled motors. A comprehensive set of flight experiments were performed to excite the longitudinal, lateral, directional, and heave modes of the vehicle. A linearized statespace model was derived from the flight test data. The model showed that lateral and longitudinal dynamic modes were decoupled from each other and from the other modes of the vehicle. Due to the axisymmetric nature the vehicle design, the longitudinal and lateral stability and control coefficients and their eigenvalues were nearly identical. All of the aerodynamic damping terms were negative and stabilizing except for the pitch and roll acceleration modes. These two unstable modes necessitated the need for pitch and roll feedback control. The final flight dynamics model was compared against flight test data for each state, and the model shown good agreement with the experimental data.
Duct-Winged Inertial Bicopter: Theory, Design and Testing
Authors:   Athena Aero Corp, Gress Gary
Published: September 2022

This paper describes and reports on the status of an electric vertical take-off and landing (eVTOL) aircraft type being developed at Athena Aero Corp that began life as a concept entry in the Boeing-sponsored GoFly Challenge initiated in Sept. 2017. Known as a duct-winged inertial bicopter, the concept was intended to satisfy the Challenge’s basic requirements of giving the pilot an unobstructed forward view within a 90-degree cone and of being able to:
1.take off and land (essentially) vertically,
2.transport a 200 lb. person six times around two pylons a half-mile apart at a speed of at least 30kts, and
3.stay aloft for 20 minutes with a 10-minute fuel/energy reserve,
all in a single flight. Additionally, the aircraft could be no larger than 8.5 ft. in any direction and had to be quieter than 85 dB at 50 ft. on take-off.
alpha2,3 sialic acid processing enzymes expression in gastric cancer tissues reveals that ST3Gal3 but not Neu3 are associated with Lauren's classification, angiolymphatic invasion and histological grade
Authors: Quirino Michael W.L. , Albuquerque Amanda P.B. , De Souza Maria F.D. , Da Silva Filho Antônio F. , Martins Mário R. , Da Rocha Pitta Maira G. , Pereira Michelly C. , De Melo Rêgo Moacyr J.B.
Published: September 2022

Gastric cancer (GC) is one of the leading causes of cancer-related deaths worldwide. Despite progress in the last decades, there are still no reliable biomarkers for the diagnosis of and prognosis for GC. Aberrant sialylation is a widespread critical event in the development of GC. Neuraminidases (Neu) and sialyltransferases (STs) regulate the ablation and addition of sialic acid during glycoconjugates biosynthesis, and they are a considerable source of biomarkers in various cancers. This study retrospectively characterized Neu3 and ST3Gal3 expression by immunohistochemistry in 71 paraffin-embedded GC tissue specimens and analyzed the relationship between their expression and the clinicopathological parameters. Neu3 expression was markedly increased in GC tissues compared with non-tumoral tissues (p<0.0001). Intratumoral ST3Gal3 staining was significantly associated with intestinal subtype (p=0.0042) and was negatively associated with angiolymphatic invasion (p=0.0002) and higher histological grade G3 (p=0.0066). Multivariate analysis revealed that ST3Gal3 positivity is able to predict Lauren's classification. No associations were found between Neu3 staining and clinical parameters. The in silico analysis of mRNA expression in GC validation cohorts corroborates the significant ST3Gal3 association with higher histological grade observed in our study. These findings suggest that ST3Gal3 expression may be an indicator for aggressiveness of primary GC.
Systematic review and meta-analysis on the etiology of bacterial pneumonia in children in sub-Saharan Africa
Authors: Onwuchekwa Chukwuemeka , Edem Bassey , Williams Victor , Olujuwon Ibiloye , Jallow Musa , Sanyang Binta , Verdonck Kristien
Published: September 2022

Introduction. Before the introduction of vaccination to protect children from pneumonia, Streptococcus pneumoniae and Haemophilus influenzae type B (HiB) were the most frequent aetiological agents causing bacterial pneumonia in children under five years old. However, the etiology of childhood pneumonia appears to be changing and nonvaccine- type S. pneumoniae, non-typeable H. influenzae, and Staphylococcus aureus are becoming more relevant.Objective. We conducted a systematic review aimed at identifying the common causes of bacterial pneumonia in children in sub-Saharan Africa.Methods. We searched PubMed, Web of Science and African Index Medicus and included primary studies conducted since January 2010 that reported on the bacterial causes of pneumonia in children under five from sub-Saharan Africa. We extracted data items (about the study setting, pneumonia diagnosis, sampling, microbiological methods, and etiological agents) as well as study quality indicators.Results. Streptococcus pneumoniae was the most common bacteria in blood cultures from children with pneumonia (8%, 95% CI: 4- 14%), and H. influenzae was second (3%, 95% CI: 1-17%). Children’s nasopharynx commonly contained S. pneumoniae (66%), Moraxella catarrhalis (62%), and H. influenzae (44%).Conclusion. S. pneumoniae and H. influenzae cause bacterial pneumonia in sub-Saharan African children. Our review also highlights the prevalence of potentially pathogenic bacteria in the nasopharynx of children under five and calls for more research into how nasopharyngeal colonization causes pneumonia.
The influence of humidity on bond strength of AH Plus, BioRoot RCS, and Nanoseal-S sealers
Authors: Gaddalay Sunanda Laxman , Patil Damini Vilas , Kabir Ramchandra
Published: September 2022

Aim:

This study aimed to evaluate the influence of humidity on the bond strength of AH Plus, BioRoot RCS, and Nanoseal-S sealers.

Materials and Methods:

Sixty root slices, each 1 ± 0.1 mm thick, were prepared from the middle-third of 20 mandibular premolars. Three holes, 0.8 mm wide each, were drilled on each slice. These holes were subjected to standardized irrigations and dried. Each hole in each slice was filled with the three individual sealers, AH Plus, BioRoot RCS, and Nanoseal-S. The samples were then stored in saline for 7 days at 37°C. The push-out bond strength of each sealer in each hole of all samples was tested. The differences in push-out bond strengths between the three sealer samples were assessed using the unpaired t-test and post hoc Turkey's HSD test. The significance level was set at 5%.

Results:

The results of the post hoc Tukey's HSD test (P < 0.05) indicated that the mean and median push-out bond strength were highest for BioRoot RCS, irrespective of the moisture conditions.

Conclusion:

Humidity conditions did not influence the bond strength of AH Plus, BioRoot RCS, and Nanoseal-S sealers.
Effect of glide path files with different metallurgy on intracanal bacterial extrusion by HyFlex electrical discharge machining file
Authors: Soni Priyanka , Kumar Pragya , Taneja Sonali , Jain Anshi
Published: September 2022

Introduction:

Glide path preparation permits predictable debridement and shaping of radicular space while reducing procedural errors like apical extrusion of debris and microorganisms which can postpone healing. The aim of this study was to comparatively evaluate the effect of glide path files with different metallurgy on apically extruded Enterococcus faecalis.

Materials and Methods:

Forty human mandibular bicuspids were selected, decoronated, and autoclaved. The samples were placed in a test apparatus of sterilized glass vials and inoculated with E. faecalis. The specimens were randomly allocated into four major groups (n = 10) each depending on the glide path file used – Group I with Proglider, Group II with EdgeGlidePath Files, Group III with Neoniti GPS, and Group IV without rotary glide path instruments using HyFlex electrical discharge machining (EDM). After glide path preparation, final canal preparation was done with HyFlex EDM. The apically extruded E. faecalis was counted as colony-forming unit and was converted into log values. Statistical analysis was evaluated using Kruskal–Wallis H Test and Mann–Whitney U-test using SPSS software; version 22.0 (SPSS INC., Chicago, IL, USA).

Results:

Group IV without glide path preparation technique showed maximum extrusion of E. faecalis in comparison to other groups (P < 0.05). Groups I and II showed a similar quantity of extruded bacteria. Group III showed significantly higher bacterial extrusion than Groups I and II.

Conclusions:

Glide path preparation groups showed less amount of apically extruded E. faecalis. EDGEGlidePath files showed lesser apically extruded E. faecalis in comparison to Proglider and Neoniti GPS.
Comparative evaluation of effectiveness of manual and various rotary retreatment techniques for removal of root canal filling material
Authors: Jagtap Apoorva Rajendra , Aher Gayatri , Gulve Meenal , Kolhe Swapnil J
Published: September 2022

Aim:

This study intended to compare the effectiveness of manual files H-files and ProTaper universal retreatment (PTUR), R-Endo retreatment, and gutta-percha removal (GPR) Mani retreatment rotary files for removing root canal filling material.

Materials and Methods:

Eighty mandibular premolars with single canal were selected. The canals were enlarged with ProTaper rotary files up to F2 and obturated using the lateral condensation technique. Then, the samples were randomly divided into four groups and retreated using hand files and rotary retreatment files. The area of remaining root canal filling material was evaluated by splitting the tooth using a stereomicroscope with ×10 and auto computer-aided design software and the percentage of remaining filling material on canal walls was calculated with equation: area % of remaining filling material = area of remaining material ×100/area of canal. One-way ANOVA was carried out to compare the groups and post hoc Tukey's test for pairwise association with each of four groups.

Results:

Group A (H-files) showed 61.87% of remaining filling material, Group B (PTUR) showed 24.94%, Group C (R-Endo) showed 37.12%, and Group D (GPR Mani) showed 45.95% of remaining root canal filling material.

Conclusions:

All the groups showed residual root canal filling material. Least was seen in group retreated using PTUR files and maximum was seen in group retreated with H-files.