bluuebunny/crossref_metadata_2025 huggingface dataset:
Doomed Worlds. I. No New Evidence for Orbital Decay in a Long-term Survey of 43 Ultrahot Jupiters
Authors: Adams Elisabeth R. , Jackson Brian , Sickafoose Amanda A. , Morgenthaler Jeffrey P. , Worters Hannah , Stubbers Hailey , Carlson Dallon , Bhure Sakhee , Dekeyser Stijn , Huang Chelsea X. , Weinberg Nevin N.
Published: July 2024

Ultrahot Jupiters (UHJs) are likely doomed by tidal forces to undergo orbital decay and eventual disruption by their stars, but the timescale over which this process unfolds is unknown. We present results from a long-term project to monitor UHJ transits. We recovered WASP-12 b’s orbital decay rate of

P

̇

=
−
29.8
±
1.6

ms yr−1, in agreement with prior work. Five other systems initially had promising nonlinear transit ephemerides. However, a closer examination of two—WASP-19 b and CoRoT-2 b, both with prior tentative detections—revealed several independent errors with the literature timing data; after correction, neither planet shows signs of orbital decay. Meanwhile, a potential decreasing period for TrES-1 b,

P

̇

=
−
16
±
5

ms yr−1, corresponds to a tidal quality factor

Q

⋆

′

=
160

and likely does not result from orbital decay if driven by dissipation within the host star. Nominal period increases in two systems, WASP-121 b and WASP-46 b, rest on a small handful of points. Only 1/43 planets (WASP-12 b) in our sample is experiencing detectable orbital decay. For nearly half (20/42), we can rule out

P

̇

as high as observed for WASP-12 b. Thus, while many UHJs could still be experiencing rapid decay that we cannot yet detect, a sizable subpopulation of UHJs are decaying at least an order of magnitude more slowly than WASP-12 b. Our reanalysis of Kepler-1658 b with no new data finds that it remains a promising orbital decay candidate. Finally, we recommend that the scientific community take steps to avoid spurious detections through better management of the multi-decade-spanning data sets needed to search for and study planetary orbital decay.
The Cauchy problem for general nonlinear wave equations with doubly dispersive
Authors: Pang Yue , Qiu Xiaotong , Xu Runzhang , Yang Yanbing
Published: July 2024

This paper focuses on a class of generalized nonlinear wave equations with doubly dispersive over equation whole lines. By employing the potential well theory, we classify the initial profile such that the solution blows up or globally exists.
Non-parametric hypothesis testing to address fundamental life testing issues in reliability analysis with some real applications
Authors: Bakr M. E.
Published: July 2024

Life categories and probability distributions are part of a new field in reliability that has emerged as a result of the daily generation of data that has become more complex across practical fields. This study demonstrated how well the U-statistics technique can be applied to real-world testing problems, producing more efficient processes that are on par with or even more successful than conventional approaches. Furthermore, there was room for improvement in the performance of these methods. An approach tending toward normalcy was supported by comparing a unique U-statistic test with the used better than age in moment generating ordering (UBAmgf) test statistic, In this manuscript, a novel nonparametric technique has been developed to test the belonging of a dataset to a distribution of a new statistical class survival function, the moment generating function for used better than aged (UBAmgf). This type of test was crucial in practical life, such as implementing a specific strategy of proposed therapy for a particular disease, deeming it futile if the survival data was exponential (accepting $ {\mathrm{H}}_{0} $) (the suggested therapeutic approach does not exhibit positive or negative effects on the patients). Once the survival data was UBAmgf, the treatment or device or system employed yields an expected overall current value better or higher than the older device governed by the asymptotic survival function (discussed in the Applications section). The appropriateness of the proposed statistical test's application range was properly determined by calculating its test efficiency and critical values and comparing them with other tests, whether in complete or censored data. Finally, we applied this proposed test technique in the manuscript to a different set of real data in both cases.
Modeling free tumor growth: Discrete, continuum, and hybrid approaches to interpreting cancer development
Authors: Singh Dashmi , Paquin Dana
Published: July 2024

Tumor growth dynamics serve as a critical aspect of understanding cancer progression and treatment response to mitigate one of the most pressing challenges in healthcare. The in silico approach to understanding tumor behavior computationally provides an efficient, cost-effective alternative to wet-lab examinations and are adaptable to different environmental conditions, time scales, and unique patient parameters. As a result, this paper explored modeling of free tumor growth in cancer, surveying contemporary literature on continuum, discrete, and hybrid approaches. Factors like predictive power and high-resolution simulation competed against drawbacks like simulation load and parameter feasibility in these models. Understanding tumor behavior in different scenarios and contexts became the first step in advancing cancer research and revolutionizing clinical outcomes.
Faulkner, Claude Simon et le collectif Inculte
Authors: Duncan Alastair B.
Published: July 2024

La forme et le style des romans de Claude Simon, surtout entre Le Vent(1957) et La Route des Flandres(1960),
doivent beaucoup aux romans de Faulkner traduits au début des années
cinquante, L’Intrus, Les
Palmiers sauvageset Absalon, Absalon!Les traductions de
Faulkner, profondément revues depuis la fin du siècle dernier, doivent
quelque chose à l’exemple de Simon : sa phrase a élargi les limites de
ce qui pouvait s’écrire en bon français. L’influence de Simon et de
Faulkner se fait encore sentir, séparément ou conjointement, sur des
romans du collectif Inculte : J’ai appris à ne pas rire du démond’Arno
Bertina, Zone de Mathias
Énard, Naissance d’un
pontde Maylis de Kerangal.
Manières de rire : Alfred Jarry
Authors: Grojnowski Daniel
Published: July 2024

Jarry a exploité des genres et des modes d’expression les plus
divers. Il s’est démarqué de ses aînés collaborateurs du « Chat noir »
en explorant des modes nouveaux de la drôlerie : avec les intrusions
burlesques d’Ubu, personnage « d’un sinistre largement comique » (Remy
de Gourmont) ; avec les spéculations de La Chandelle verte qui éclairent les menus
faits de l’actualité, proposant par exemple d’appliquer la peine
capitale à titre préventif ; ou encore en exposant le moyen de
réaliser une « Machine à explorer le temps » de façon si savante que
ses lecteurs perdent pied.
Figurabilité de la métamorphose chez La Fontaine
Authors: Leplatre Olivier
Published: July 2024

Un parcours à travers les Fables, Les Amours de Psyché et de Cupidonet Le Songe de Vaux illustre la
manière dont la métamorphose travaille l’œuvre de La Fontaine au point
de constituer l’un de ses schèmes structurants et explicatifs. Plus ou
moins sensibles ou rétives, en fonction de leurs genres, aux charmes
de la métamorphose dont la Fable est le principal référent, les
fictions lafontainiennes passent au crible du beau et du bon ses
qualités et sa valeur ; elles l’appréhendent alternativement ou
simultanément comme une illusion ou un miracle ; elles relèvent son
défi, qu’il soit chance ou malédiction, aidant alors le poète à
définir l’identité de son art comme preuve de la vie active des
formes, accueil des possibles et expérience régénératrice.
Du sopha au bidet, les meubles bavards du XVIIIe siècle
Authors: Delon Michel
Published: July 2024

Le développement de l’artisanat d’art et de la consommation de
luxe, le raffinement de l’horlogerie et la vogue des automates
s’accompagnent de la publication de contes où des individus sont
métamorphosés en meubles, capables de narrer leurs aventures. Le
sopha, le canapé et le bidet, respectivement mis en scène par
Crébillon, Fougeret de Monbron et Bret, sont des inventions modernes,
au sens de la Querelle des Anciens et des Modernes. L’accélération du
temps social et la rotation toujours plus rapide des modes bousculent
le cadre conceptuel de l’identité et les valeurs de la Fable
traditionnelle. Avec la crise des Lumières, ce type de métempsycose
débouche sur le fantastique avec Cazotte ou sur l’aliénation
économique et sexuelle chez Sade.
Le cycle des BalestaJoachim et les Ombres
Authors: Jean Françoise
Published: July 2024

Quelle place occupent dans l’œuvre de Bosco Les Balesta (1955), Sabinus (1957) et L’Épervier (1963) ? Ce cycle méconnu
raconte l’histoire d’une famille inspirée de celle de Bosco : venus
d’Italie au xviie siècle, les Balesta se sont
installés dans l’aimable petite ville de Pierrelousse, en Provence. Or
le clan, pacifique, est affligé d’un « don » aux allures de
malédiction : le Ciel châtie sans pitié celui qui s’en prend à l’un
d’entre eux ! Pourtant, il n’empêchera pas le déclin de la famille.
Cent ans plus tard, l’étrange et très bosquien narrateur de la
trilogie, Joachim, dernier des Balesta, et hanté par la mémoire de ses
ancêtres, revient à Pierrelousse… Sous le classicisme apparent de la
forme, son récit foisonnant, entre conte et tragédie, est celui d’une
quête orphique sans fin.
Giono : quand le temps échappe au temps
Authors: Arrouye Jean
Published: July 2024

L’idée qu’on puisse échapper au temps ou découvrir le moyen
d’instaurer un temps qui s’arrache au temps est paradoxale. C’est pour
cela qu’elle paraît précieuse à Giono et qu’il multiplie dans ses
œuvres les situations dans lesquelles elle s’actualise car, puisque le
paradoxe contredit le sens commun, il espère que ces situations
établiront qu’il est parfois possible d’échapper au sort commun de
l’homme qui, sinon, lui paraît insupportable. L’étude couvre un large
empan chronologique, de Solitude de la pitié aux Grands Chemins.
Le paysage virgilien comme état d’âme. Des Bucoliques aux Géorgiques et à l’Énéide
Authors: Thomas Joël
Published: July 2024

L’idéal de vie selon Virgile passe par une représentation utopique
du monde, identifié à une Arcadie heureuse. Le paysage y est un état
d’âme : la terre italienne est indissociable de la pensée des bergers,
elle en est le reflet. L’œuvre virgilienne apparaît alors comme le
lieu d’une réflexivité entre espace intérieur et espace extérieur. Les
trois poèmes majeurs de Virgile, les Bucoliques, les Géorgiques et l’Énéide, correspondent alors à trois moments
de son évolution personnelle et de sa relation au monde : l’idéal
holiste de fusion dans la nature, avec les Bucoliques ; puis l’idée d’une mise en
ordre de la nature sauvage, qui va de pair avec une géométrisation du
paysage, avec les Géorgiques ; enfin, l’idée, plus vaste
encore, d’une mise en ordre politique, avec l’Énéide, où l’ordre du monde se reflète dans
la cité, et dans l’Empire. Mais, à la fin, on voit poindre chez
Virgile le sentiment déceptif que tout ceci a été dévoyé par Auguste,
qui a transformé le rêve en impérialisme brutal : Virgile, déçu, fait
alors son adieu à la politique : c’est avant tout un poète, il ne peut
finalement être heureux que dans le monde utopique des Bucoliques.
Prendre le maquis dans Perturbations et Ruptures de Gisèle Fournier
Authors: Blanc Anne-Lise
Published: July 2024

Dans ces deux récits de Gisèle Fournier, plusieurs personnages
s’égarent dans un maquis inhospitalier qui semble présenter un modèle
pour la narration dont l’allure est complexe et ajourée. S’y
enchevêtrent des points de vue lacunaires autour de deux inconnus
énigmatiques venus s’installer à l’écart du village. Le récit ne
révèle qu’un pan de leur histoire. Mais il dévoile aussi, à travers
eux, les troubles sentiments des villageois qui les surveillent.
Ainsi, sans rien expliquer, le récit amène le lecteur à comprendre
confusément le choix de l’écart que font les personnages et à mesurer
le pouvoir de révélation de ce qui reste obscur et apparemment
inextricable. Dans une poétique de la broussaille, il développe les
remarquables potentialités d’un modèle naturel, non seulement pour
exprimer la nature trouble des êtres, mais aussi pour offrir à
l’écriture l’occasion de repousser les frontières (entre les êtres,
entre le réel et la fiction) et de s’ouvrir à une lecture plus
flottante, plus sensible, plus personnelle aussi.
L’Anatomie du réel. Le récit de deuil chez Annie Ernaux : une poéthique du récit d’orphelinage
Authors: Granereau Sarah
Published: July 2024

Annie Ernaux a publié deux récits sur la perte de ses parents : La Place (1983) et Une femme(1988). Ils
permettent de définir le récit d’orphelinage, un récit du deuil d’un
ou des deux parents. Quête de soi et de vérité, cette narration
dessine une trame faite d’analepses et de différents récits allant
interroger le passé et le présent. La poéthique d’Annie Ernaux est de
trouver la forme qui puisse rendre compte du réel. Le récit de
l’agonie est celui de cet espace-temps unique, ni vie ni mort, les
deux. L’écriture, courageuse, opère cette anatomie.
Le pouvoir impérial et les cités
Authors: Davoine Charles
Published: July 2024

Le monde romain est composé d’une multitude de cités. Celles-ci
sont plus que jamais, durant l’Antiquité tardive, un maillon essentiel
du gouvernement de l’empire. Les curiales exécutent en effet toutes
sortes de tâches de gestion locale (munera ou
liturgies) qui sont indispensables pour le pouvoir romain, en
particulier en matière fiscale. Les empereurs ne cessent donc de se
présenter comme les protecteurs des cités et même d’en fonder de
nouvelles. L’ampleur des munera constitue
néanmoins une lourde charge pour les curiales, qui sont tentés de fuir
leurs devoirs et de rejoindre l’administration impériale, l’armée ou
le service de Dieu. Par ailleurs, les exigences fiscales du pouvoir
impérial ont privé les cités de la libre jouissance de leurs
ressources, l’affectation des revenus civiques étant passée au fil du
ive siècle aux mains
des gouverneurs. C’est dans cette tension entre une autonomie
nécessaire et un contrôle croissant que nous analyserons donc les
relations entre le gouvernement impérial et les cités.
Le pouvoir et les populations extérieures à l’Empire (284-410 apr. J.-C.)
Authors: Coumert Magali
Published: July 2024

Les travaux concernant les barbares au xxie siècle cherchent à
dépasser la répétition du discours romain, qui perpétue la vision d’un
empereur éternellement victorieux contre des menaces barbares
perpétuelles et identiques, tout en considérant que les sources
postérieures sont de peu d’utilité́ pour connaitre les ive et ve siècles. Si les barbares
ne peuvent alors être appréhendés que par les fouilles archéologiques
et le regard romain, la déconstruction des concepts utilisés aux xixe et xxe siècles a permis un
nouvel éclairage de leurs transformations. Différentes théories
interprétatives se sont succédées depuis les années 2000, virant
parfois à des polémiques. La théorie de l’ethnogenèse a laissé la
place à des interprétations plus globales, autour de l’identité́
sociale des individus et des discours politiques de mobilisation,
concernant finalement aussi bien les barbares que les Romains. Enfin,
une discussion est toujours en cours, en France, autour de l’hypothèse
d’une apparition de lois écrites barbares dès la fin du ive siècle de notre
ère.
Sirens’ Songs and Music: Their Representations and Significance on Archaic and Classical Attic Vase-Paintings
Authors: Liveri Angeliki
Published: July 2024

Dans la religion grecque antique, les sirènes étaient souvent
associées à l’au-delà et aux rituels funéraires. Leur rôle dans la
littérature et la philosophie de la Grèce antique était également très
important. Le motif des sirènes peut être interprété de plusieurs
points de vue, a de nombreuses significations différentes et est
associé à diverses divinités. Cet article présente les sirènes dans
leur rôle de chanteuses et musiciennes, individuellement ou en groupe.
Des représentations choisies de sirènes, principalement sur des vases
attiques, sont combinées avec des sources littéraires, en se
concentrant sur les périodes archaïque et classique (vie-ve siècles avant notre
ère). Nous tentons d’examiner l’évolution de leur iconographie et de
leur signification, soit dans des scènes mythologiques inspirées des
épopées (Odyssée ou Argonautique), soit dans des scènes différentes, où
les sirènes anonymes sont liées à divers concepts (par exemple,
religieux-eschatologique). Les sirènes sont représentées sur des vases
à figures noires et rouges de formes et d’usages divers. En général,
elles chantent ; parfois, elles tiennent des instruments de musique,
généralement l’aulos et la lyre, rarement la
crotale. La comparaison avec des thèmes similaires représentés sur des
peintures de vases montrera les similitudes et les différences dans
leur iconographie et leur symbolisme.
Sleep dealer: La profecía de una Tijuana cyberpunk
Authors: Lozano Miguel , Navarro Armando , Núñez Axel
Published: July 2024

En este artículo estudiamos la película norteamericana Sleep Dealer como caso atípico dentro de la producción de cine cyberpunk. Pocas cintas de este género intentan retratar el futuro de los países latinoamericanos. Primero hacemos un recuento de los antecedentes de este género literario y cinematográfico. Posteriormente, hacemos un recuento de la trama de la película para encontrar los tropos cyberpunk dentro de la misma. Por último, analizamos el contexto de producción, sobre todo en vista de la situación sociocultural fronteriza y los elementos de la misma que se encuentran en la película. Concluimos que Alex Rivera eligió el cyberpunk como género para hacer una crítica a la situación fronteriza de su presente, ya que el modelo se presta particularmente para el comentario de las situaciones específicas de la frontera.
Les marges, territoires de l’architecture. Matérialisation de qualités d’habitabilités à la plage du Cerro Montevideo (Uruguay)
Authors: Randier Fraile Étienne
Published: July 2024

La proximité du rivage et l’exposition aux aléas climatiques, notamment d’inondations, apparaissent comme thèmes d’actualités qui interrogent l’habitabilité des « marges » à Montevideo. Émergeant notamment à partir des années 1950, pour la réalité d’une marginalité sociale et spatiale, le thème focalise alors particulièrement les attentions des disciplines des sciences sociales. Si la forme que prend l’habitat interroge l’architecte, elle interroge d’autant plus sa capacité à le regarder à partir de l’espace et de son processus de formation. La matérialité de l’habitat apparaît changeante, non finie, en évolution permanente, et interroge progressivement la prise en compte de la particularité des situations géographiques. La lecture, dessinée et cartographique, de ces processus spatiaux-socio-environnementaux imbriqués, devient un enjeu avant de penser toute transformation qui risquerait de produire de nouvelles exclusions. Notre travail1 révèle une intégration progressive des dimensions du site, de la nature du sol, et une conscience de la présence de l’eau et des aléas. La plage du Cerro Montevideo est une des situations qui cristallise ces processus. Lieu privilégié pour l’installation de l’industrie de la viande au XIXe siècle, il devient ensuite lieu de plage et de loisirs. Et alors que le développement économique montrera des signes de faiblesses et des fractures, la plage deviendra progressivement investie par un habitat informel au cours du XXe siècle. Alors, si l’actualité du changement climatique interroge avec plus de force cette situation, l’enjeu est aussi à la reconnaissance de ces processus de fabrication.
Nouvelle mestiza : une Mexican Gothic comme personnage-territoire à la croisée des genres
Authors: Zell Marion
Published: July 2024

Gloria Anzaldúa prédisait dès 1987 dans son ouvrage Borderlands/La Frontera l'émergence de « la nouvelle mestiza», une identité à l'intersection des cultures. Cet article étudie, dans une approche comparatiste avec Rebecca de Daphné Du Maurier (1938), l'exploitation de ce personnage-territoire par l'autrice mexico-canadienne Silvia Moreno-Garcia dans le roman d’horreur gothique Mexican Gothic (2020). Plus particulièrement, la question de l'usage des éléments fantastiques comme vecteur d'agentivité y est mise en perspective, avec le détournement des codes classiques du roman gothique européen et du réalisme magique latino-américain. Il s'agit également de noter l'influence d'un contexte social sur la construction identitaire des héroïnes mestizas, placées au centre de l’histoire, et de la critique postcoloniale sur la mise à la marge des personnages britanniques, renvoyés au second plan. La littérature « de l'imaginaire » apparaît, dans Mexican Gothic, comme un terrain liminal de choix entre deux aires socio-culturelles.
Le centre et les périphéries à l’aune de l’esthétique « tremblée » d’Édouard Glissant : une approche artistique et géoculturelle transversale
Authors: Rhimi Mohamed Lamine
Published: July 2024

Cette analyse apporte un nouvel éclairage sur la dichotomie (Centre/Périphéries), sous le signe de laquelle opère la machine coloniale. Il s’agit de rendre compte de la méthode et de la logique dont Glissant procède pour déconstruire la dialectique qui unit historiquement les dominants et les dominés, les Occidentaux et les périphériques. L’écrivain s’inscrit dans le sillage de Deleuze et Guattari, se revendique des schèmes de « rhizome » et de « l’identité-relation » et met à contribution la poétique baroque pour mettre en place une philosophie archipélique et cultiver une esthétique transversale, l’autorisant à subsumer les différentes communautés et les diverses régions du monde, sous les auspices du vivre-ensemble, loin de toute propension de centralisation monolithique.
Phylogenetic and biomechanical influences in the structural pattern of the femoral diaphysis among catarrhines
Authors: Cosnefroy Quentin , Marchal François , Bellaiche Laurence , Carlier Robert , Cazeau Cyrille , Chaumoître Kathia , Lamberton Franck , Perrier Antoine , Theil Jean-Christophe , Berillon Gilles
Published: July 2024

The interpretation of hominin locomotor behaviors, which is largely based on actualism, implies a clear understanding of form-function relationship between the biomechanics of the skeleton and the locomotor behaviors of extant primates. In this study, we tested this relationship by measuring the structural properties of 127 femoral diaphyses from six genera and 10 species of catarrhine primates whose locomotor behaviors are well documented. The structural properties were assessed on the entire diaphysis via cross-sectional geometry properties including relative cortical area (%CA) and cross-sectional bending rigidity and shape (Ix/Iy and Imax/Imin), as well as the pattern of overall cortical bone distribution (cortical thickness maps). Concerning cross-sectional properties, our results highlight marked differences in CSG along the femoral diaphysis of locomotor-related groups such as knuckle-walker African apes and quadrupedal cercopithecoids. Humans seem to be distinctive in their anteroposterior bending rigidity, especially at midshaft, while brachiator hylobatids differ very little from all other groups. Concerning overall cortical bone distribution, humans differ from non-human primates. In the latter, a hominoid-cercopithecoid partition supports previously reported influence of phylogeny rather than locomotor behaviors in shaping the structural properties of the femoral diaphysis. Caution is therefore needed when inferring locomotor behavior in fossils solely based on femoral structural properties.
Investigation of Velocity Distribution in an Open Channel with Rigid Floating Vegetation Islands
Authors: Ashraf Jawad , Anjum Naveed , Ahmed Zaheer , Ghani Usman
Published: July 2024

Floating Vegetation Islands (FVIs) are commonly found on the shallow surfaces of open channels, such as rivers and canals. These FVIs can significantly alter the flow characteristics, causing changes in flow velocity and turbulence around the canopy zone. This research employs Computational Fluid Dynamics (CFD) modeling to investigate the impact of FVIs on flow velocity in an open channel. The numerical simulations were conducted using ANSYS-FLUENT software, utilizing the Reynolds Stress Model (RSM). Three patches of FVIs with a density of 2.0583/cm2 were considered in the simulations. The findings demonstrate a substantial reduction in flow velocity, up to 100%, within the vegetation zone, while a velocity increase of 285% was observed in the free adjacent zone. A shedding behavior with large and turbulent wake structures was observed behind the floating patches, whereas a significant difference in the velocity magnitudes between the upper canopy part and the lower free part (water column) was observed. This study highlights the significant influence of FVIs on flow dynamics in open channels.
Evaluation of Possible Sustainable Solutions to Road Defects in Karachi
Authors: Ahmed Ashar , Shaikh Ahsan Zaheer , Shaikh Muhammad Abeer
Published: July 2024

Road defects are inevitable in the infrastructure of any city but its effects on the safety of road users and overall economy vary. There are several factors which contribute towards the magnitude and frequency of such defects and how much human and financial loss they incur. Finding suitable solutions to these road defects which are cost effective as well as sustainable are necessary. This study aims to explore the various common road defects, their cause and possible sustainable solutions. Different localities in the city of Karachi were selected for estimating the average frequency and magnitude of common road defect types. It was found that on an average there were 2.8 potholes, 1.5 ditches, 1.68 speed breakers, 1.3 open manholes, and 0.16 open nullahs per kilometer in Karachi. All together they constitute about 59,436 road defects in the city of Karachi. The most hazardous of them are the open manholes which account for day to day fatal and severe injury accidents. Some of the solutions evaluated for the repair of these road defects were concrete debris, aggregate mixture (gherha), earthen backfill, and used rubber tire strips based manhole cover.
Attracting K-12 Students to the Construction Workforce through an Interactive Career Expo
Authors: Zhang Fan , Bayraktar Mehmet Emre
Published: July 2024

The workforce shortage has become a critical issue in the construction industry in the United States, and many people believe that the shortage will be prevalent for years. The main reasons for the construction workforce shortage are the aging workforce and a lack of interest from young people in joining the industry. As educators in construction, we need to actively participate in events that provide opportunities to interact with children and young adults so that we can provide them with information about career opportunities in the construction industry and boost the image of the construction industry. Research studies show that kids start to make career choices when they are in 8th or 9th grade. Boosting awareness of construction career possibilities for kids in that age group is an important effort to attract young talent to the construction field. This paper describes an effort to provide early construction career exposure opportunities to K-12 students through an interactive career expo organized by a local non-profit organization.
Energy Assessment of Healthcare Facilities in Sindh
Authors: Mansur Muhammad Kamran , Kazi Ali Saleem
Published: July 2024

This paper explores the existing condition of the energy supply through power grids, photovoltaic (PV) system commonly known as Solar Powered system, generators etc. to 81 healthcare facilities in Sindh that were identified during rapid assessment. As the Country is facing load shedding challenges, these healthcare facilities, apart from few, are not immune from it. This makes alternate sources of energy one of the most needed elements for a healthcare facility. In response to the findings, the paper underlines the importance of efficient utilization of existing PV system setup which is available in almost all healthcare facilities however underutilized due to various factors. This study helped in finding true potential of the PV system utilization. Ultimately, this research highlights the importance of environmental aspect from energy perspective in healthcare facility and present the effective utilization of already installed solar energy to make it viable solution in healthcare infrastructure which align with the principles of the UN's Sustainable Development Goals.
Autophagy in erectile dysfunction: focusing on apoptosis and fibrosis
Authors: Luo Pei-Yue , Zou Jun-Rong , Chen Tao , Zou Jun , Li Wei , Chen Qi , Cheng Le , Zheng Li-Ying , Qian Biao
Published: July 2024

In most types of erectile dysfunction, particularly in advanced stages, typical pathological features observed are reduced parenchymal cells coupled with increased tissue fibrosis. However, the current treatment methods have shown limited success in reversing these pathologic changes. Recent research has revealed that changes in autophagy levels, along with alterations in apoptosis and fibrosis-related proteins, are linked to the progression of erectile dysfunction, suggesting a significant association. Autophagy, known to significantly affect cell fate and tissue fibrosis, is currently being explored as a potential treatment modality for erectile dysfunction. However, these present studies are still in their nascent stage, and there are limited experimental data available. This review analyzes erectile dysfunction from a pathological perspective. It provides an in-depth overview of how autophagy is involved in the apoptotic processes of smooth muscle and endothelial cells and its role in the fibrotic processes occurring in the cavernosum. This study aimed to develop a theoretical framework for the potential effectiveness of autophagy in preventing and treating erectile dysfunction, thus encouraging further investigation among researchers in this area.
Effects of intranasal dexmedetomidine versus intranasal midazolam as premedication in children with tetralogy of Fallot undergoing corrective cardiac surgery: A randomized trial
Authors: Srivastava Sarvesh , Das Sambhunath , Makhija Neeti , Chauhan Sandeep
Published: July 2024

Background:

This prospective, randomized, double-blind trial was done to compare intranasal dexmedetomidine and intranasal midazolam as premedication for sedation and ease of child–parent separation in pediatric patients of tetralogy of Fallot (TOF) undergoing corrective cardiac surgery.

Materials and Methods:

Forty children with TOF, between 1 and 10 years, undergoing corrective cardiac surgery were included in the study and, after randomization, were given intranasal midazolam (0.2 mg/kg) or intranasal dexmedetomidine (1 µg/kg), 30 min before shifting to the operation room (OR). Patients were assessed for sedation and child–parent separation, along with hemodynamic parameters, respiratory rate, and oxygen saturation (SpO2) 30 min after drug administration, at the time of shifting inside the OR, and at the time of induction of anesthesia.

Results:

Both groups had comparable child–parent scores, hemodynamic parameters, SpO2, and respiratory rate. However, the dexmedetomidine group had significantly better sedation levels than the midazolam group patients at the time of shifting inside the OR (dexmedetomidine group: 3.55 ± 0.82 vs. midazolam group: 2.80 ± 0.83; P = 0.007) and at the time of induction of anesthesia (dexmedetomidine group: 3.40 ± 0.75 vs. midazolam group: 2.70 ± 0.86; P = 0.009).

Conclusion:

Intranasal dexmedetomidine provides better sedation than midazolam, with similar child–parent separation scores and hemodynamic parameters, respiratory rate, and SpO2. No adverse events were observed in both groups. A study on a larger population will help in further establishing the safety and superiority of dexmedetomidine and will further its regular use as an intranasal premedication.
Zero-contrast transcatheter closure of sinus venosus defect in advanced renal failure
Authors: Thejaswi Puthiyedath , Sagar Pramod , Sivakumar Kothandam
Published: July 2024

Transcatheter closure of sinus venosus defect (SVD) is an emerging intervention that utilizes a covered stent to redirect the right upper pulmonary vein to the left atrium. Preprocedural computed tomography analysis, as well as the interventional procedure, necessitates the use of radiographic contrast media. Contrast use is prohibited in patients with advanced kidney disease, who also carry high surgical risks of cardiopulmonary bypass. Transesophageal echocardiography-guided catheter intervention with zero contrast use is presented in this report, along with technical details about planning the procedure. Covered stent exclusion of SVD without contrast use has not been reported in the literature so far.
Various Laparoscopic Techniques in Pelvic Organ Prolapse Surgery
Authors: Pesebre Antonette Ramos , Nomura Masayoshi , Soliza Divina Yumul , Ruanphoo Purim , Kuriyama Moeko , Obuchi Tomoka , Nagae Mika , Tokiwa Shino , Nishio Kojiro , Hayashi Tokumasa
Published: July 2024

In the past, transvaginal surgery, native tissue restoration, or obliterative methods have been used in the majority of pelvic organ prolapse (POP) surgeries. Since laparoscopy has gained popularity, other procedures have been created to provide additional POP repair alternatives. Laparoscopic technique offers many advantages compared to open or transvaginal surgery when it comes to anatomical and surgical outcomes, recurrence rates, and patient’s acceptance. Furthermore, we encouraged incorporating different laparoscopic techniques into urogynecology training to attract young gynecologists. Based on our own clinical and surgical experience, we present various laparoscopic techniques for treating POP. We think that by giving patients a variety of surgical alternatives, we can treat them all more effectively.
Four-handed Technique for Total Laparoscopic Hysterectomy: An Italian Experience
Authors: Nicolì Pierpaolo , Biffi Anna , Boca Gregorio Del , Vitagliano Amerigo , Silvestris Erica , Loizzi Vera , Naro Edoardo Di , Cicinelli Ettore , Damiani Gianluca Raffaello
Published: July 2024

Objectives:

In our previous article, we proposed the novel four-handed technique (FHT) for total laparoscopic hysterectomy (TLH), which, according to us, is more helpful compared to the traditional TLH route. The objectives of the study were to analyze the FHT-TLH feasibility and efficiency by comparing some surgical outcomes recorded from 750 FHT-TLH performed in our hospital to literature data about the traditional TLH route and to underline the great opportunity this novel technique offers to the young specialists and residents to be more confident with gynecological laparoscopy.

Materials and Methods:

This was a retrospective analysis carried out by collecting data regarding patient characteristics and surgical outcomes (operative time, blood loss, surgical complications, use of analgesics, and length of hospitalization) from 750 hospital records of women who underwent FHT-TLH (with or without adnexectomy) due to benign or malignant pathology from January 2015 to December 2021 at our hospital.

Results:

We performed a total of 750 FHT-TLH, with or without adnexectomy. The mean skin-to-skin operative time for a FHT-TLH was 50 min, and the mean blood loss was 150 mL. No visceral damage was caused during surgeries. Only two patients underwent exploratory laparotomy with total abdominal hysterectomy due to the inability to proceed laparoscopically. Nonsteroidal anti-inflammatory drugs were administered only twice a day as analgesics, with advantage. The mean length of stay in the hospital after the procedure was 1.5 days, with discharge on the evening of the 1st day after surgery. No major postoperative complications occurred. The only minor postoperative complication described, in just three patients, was cellulitis of the vaginal vault.

Conclusion:

Our FHT-TLH experience represents an alternative to the traditional TLH route, which allows to apply a minimally invasive approach with some advantages for patients compared to the traditional TLH route, such as early recovery and reduced operating time, blood loss, use of analgesics, and hospital stay. Moreover, it allows young specialists and residents to be more confident with gynecological laparoscopy, particularly when operating as the first assistant, to improve their laparoscopic surgical skills faster than the traditional TLH route allows them.
Bartholin’s gland adenoid cystic carcinoma: Report of three cases and the review of literature
Authors: Güral Zeynep , Yücel Serap , Agaoglu Fulya
Published: July 2024

The adenoid cystic carcinoma (ACC) of Bartholin’s gland is a very rare tumor that usually grows aggressively due to perineural invasion. Although there is no guideline for the treatment due to the small number of patients, the primary treatment is considered as surgery. Adjuvant radiotherapy has also been shown to be beneficial. Three cases, which were histopathologically confirmed as ACC of Bartholin’s gland and received adjuvant radiotherapy treatment, were presented in this study.
A cross sectional study on detection of COVID 19 antibodies in laboratory personnel at Osmania Medical College, Hyderabad
Authors: Udayasri B , Sudharani V , Reddy P. Shashikala , Lakshmi G Jyothi
Published: July 2024

Background:

Severe acute respiratory syndrome coronavirus-2 (SARS-COV-2) associated with COVID-19 disease was first reported from Wuhan Hubei Province, China, in December 2019.

Aim and Objective:

The current study is aimed to evaluate seroprevalence of SARS-COV-2 antibodies in laboratory personnel working in association with COVID-19 diagnostic work.

Methodology:

A cross-sectional study was conducted between November 2020 and December 2020 to evluate seropositivity of COVID-19 in laboratory personnel by using COVID-19 IgG ELISA.

Results:

A total number of 91 laboratory personnel were included in the current study. Out of them, 45 (49.45%) were males, 46 (50.55%) were females. Out of 91 participants, 44 (48.35%) were doctors, 19 (20.8%) were Lab technicians, 13 (14.28%) were sample collection technicians, 7 (7.69%) were transport persons, 4 (4.39%) were research scientist, and 4 (4.39%) were data managers. Out of 91 samples, 25 were positive. Out of 44 doctors, 11 were positive contributing for (25%); out of 19 laboratory technicians, 5 were positive contributing for (26%); and out of 13 sample collection technicians, 5 were positive contributing for (38.46%).

Conclusion:

Seropositivity in asymptomatic individuals means that we need to be even more cautious in hospitals with masks, hand washing, and sanitization. Repeated serosurveys will help in the implementation of infection control policies in a systematic way, which in turn helps in protection of health care workers against COVID-19.
Conducting practical classes of phase II MBBS students (CBME batch) during COVID 19 pandemic: Experience of a paraclinical resident
Authors: Mukhida Sahjid S. , Kannuri Sriram , Bhaumik Shalini , Das Nikunja K. , Patil Rajashri
Published: July 2024

The Medical Council of India, now the National Medical council changed the teaching pattern of the Under Graduate Medical Course (MBBS) after 22 years. The new revised curriculum and teaching pattern is known as Competency Based Medical Education (CBME). CBME pattern started from the 2019 MBBS batch. In the second year of MBBS, they have to learn para clinical subjects, Pathology, Microbiology, and Pharmacology. Teaching Practical classes to MBBS students for the first year PG residents is a new experience for them, as they just start their paraclinical specialty journey, and it is even more difficult for them when they are teaching the CBME batch. To take one practical class MBBS, PG residents must start the preparation before at least one week. In that one week, we read the topic thoroughly with concepts. They must prepare the PowerPoint presentation followed by a microteaching presentation to the departmental faculties and have to do the correction to the presentation. PG residents make many arrangements like smear slides for staining, culture plates, and biochemical reactions to demonstrate to MBBS students but when only 4–5 students were attending the physical demonstration classes, all the preparation look useless.
Metachronous Tumours in the Head and Neck in a Retroviral Disease Positive Patient: A Case Report and Review of Literature
Authors: Shofoluwe Nurudeen Adebola , Aliyu Halima Oziohu , Kabir Balarabe , Mohammed Ibrahim Babatunde , Hamza Manir Anka , Abdullahi Amina Mohammed , Yahaya Saadat Titilayo
Published: July 2024

Patients diagnosed with head and neck squamous cell carcinoma (HNSCC), particularly those seropositive for human immunodeficiency virus (HIV), face a heightened risk of second primary malignancies (SPMs), with common regions being the head, neck, lung, and oesophagus. This risk amplifies the severity of their clinical condition, as these SPMs contribute significantly to the mortality rates in patients with HNSCC. We detail a case of a young woman, seropositive for HIV, who developed a second squamous cancer in the nasopharynx after achieving remission from her initial oropharyngeal squamous cell carcinoma through chemo-radiotherapy. This case study highlights the increased vulnerability of HIV-positive HNSCC patients to SPMs, with an observed association of HIV infection leading to a lower overall survival rate. As a result, we recommend long-term follow-up in HNSCC patients with HIV for early detection of SPMs. Our findings emphasize the importance of regular screening for HNSCC, particularly in people living with HIV, to ensure timely detection and treatment, which can significantly improve their prognosis.
The Impact of De-Roofing of Lateral Calcaneal wall in Open Reduction and Internal Fixation of Intra-Articular Fractures: Clinico-Radiological Outcomes of a Novel Technique and Review of Literature
Authors: Bansal Mohit , Singh Nirottam , Singh Amit , Siwach Gaurav , Saini Mukesh Kumar , Raichandani Kishore
Published: July 2024

Background:

Most displaced intra-articular calcaneus fractures need to be treated surgically but postoperative soft tissue complications limit to achieve of optimal functional outcomes. Certain mini-invasive techniques lead to better soft tissue healing but anatomical reduction gets compromised.

Objectives:

We aim to evaluate the results of lateral wall de-roofing of the calcaneum to achieve good anatomical reduction as well as to minimise soft tissue complications in the internal fixation of calcaneal fractures.

Materials and Methods:

Thirty-two patients (40 ft) with displaced intra-articular calcaneus fractures (10 were of Sanders type II, 16 were of type III, and 14 were of type IV) were treated between January 2018 and September 2021. All patients were managed surgically with open reduction and internal fixation using lateral extensile approach combined with de-roofing of the lateral wall. All patients were followed up for ≥1 year using functional parameters American Orthopaedic Foot and Ankle Score (AOFAS), visual analogue scale (VAS) and radiological parameters (Bohler angle, Gissane angle, height of the calcaneus, width of the calcaneus and pitch of calcaneus).

Results:

Out of 32 patients, one patient lost to follow-up. At 1 year follow-up, mean AOFAS hindfoot score was 86.2 ± 5 (Sanders type II: 91.2, Sanders type III: 87.6, and Sanders type III: 81.4), mean VAS score was 91.3 ± 2.1, mean Bohler angle (°) was 27.2 ± 4.7, mean Gissane angle (°) was 136.4 ± 5.2, mean calcaneus height was 46.2 ± 2.1 mm and mean calcaneus width was 45.1 ± 3.2 mm. Patients with decreased Bohler angle between postoperative images and follow-up had lower AOFAS hindfoot scores. Complications included persistent swelling (64.10%), stiffness (33.33%), superficial infections (5.12%), and wound dehiscence (10.25%).

Conclusion:

Lateral wall de-roofing is a useful technique which allows the lateral wall to get flattened reducing soft tissue complications and providing bone graft as well. This approach also adequately exposes fracture fragments, subtalar and calcaneocuboid joints for good anatomical reduction. Hence, it can act as a useful adjunct in the internal fixation of intra-articular calcaneus fractures.

Level of Evidence:

III
A Prospective Study on Tibial Shaft Fractures Treated with Suprapatellar Approach
Authors: Chandar Shamith , Rao Maddula Venkataramana , Druva Vijayakumar , Dorai Raghavendra
Published: July 2024

Background:

Tibial diaphysis represents the primary location for tibial fractures, accounting for 80% of such cases, often accompanied by fibular fractures. In terms of surgical management, the recommended technique for addressing both displaced and undisplaced tibial shaft fractures in adults is intramedullary nail fixation. Additionally, there is a growing consideration for suprapatellar nailing, which involves performing the procedure with the knee in a semi-extended position, as a potentially safe and efficacious alternative.

Objectives:

To evaluate the clinical and functional union amongst tibial shaft fracture cases, managed by nailing in the suprapatellar approach, and to study the complications associated with it.

Materials and Methods:

Our study with prospective observational design was conducted for 18 months on 30 patients with tibial shaft fractures. Following comprehensive laboratory assessments and confirmation of surgical fitness, the patients underwent surgical intervention through a specialised suprapatellar approach employing expert tibial nailing.

Results:

The mean age of the subjects was 42.83 ± 11.47 years, and the majority were males (70.0%). Notably, there was a statistically significant reduction in Visual Analogue Scale scores and a concurrent increase in Lysholm Knee Scoring Scale scores during the follow-up period, indicating substantial enhancements in both clinical and functional outcomes. Delayed union was the complication observed in three individuals. We found that the younger the age of the subjects, the earlier the surgery after an injury, the better the functional outcome.

Conclusion:

Expert tibial nailing with a suprapatellar approach was successful in yielding clinical and functional union amongst the subjects with tibial shaft fractures. In addition, delayed union was the complication observed in the approach, which was evident in a few cases.
The Study of Correlation between Symptoms of Gastritis and Endoscopic Biopsy
Authors: Dave Shravan R. , Bagada Jayeshkumar B. , Desai Jitesh H. , Jha Shivangi
Published: July 2024

Background:

Gastritis is a very common disorder that is widely distributed worldwide, representing one of the most prevalent pathological entities in gastroenterology and digestive endoscopy. This study aims to analyse the correlation between the endoscopic findings and the symptoms of gastritis. Upper gastro-intestinal (UGI) endoscopy is a widely used investigation for a variety of UGI symptoms namely dysphagia, dyspepsia, abdominal pain, etc., and when combined with biopsy, its diagnostic accuracy get increased manifold.

Materials and Methods:

This is a study with 70 patients with symptoms of gastritis underwent UGI endoscopy and biopsy included in study. Biopsy was taken from gastric/duodenal mucosa and was sent for histopathology examination. Data of patient’s age, gender, food habits, oral hygiene, etc., were then taken into consideration and findings of UGI endoscopy were correlated with these data and also correlated with histopathological report.

Results:

Gastritis significantly affects the lifestyle of the majority of our participants as out of 70, 65 (95%) had gastritis in our study. Helicobacter pylori was present among 41.5 % of study participants. Other less common findings were esophagitis in 20 % and duodenitis in 7% of study participants. The mean age of participants were 46.76 ± 16.25 years.

Conclusion:

Histopathology plays a major role in diagnosing H. pylori infection. So, histological examination as an adjunct to UGI endoscopy should be considered as best diagnostic tool rather than UGI endoscopy alone or clinical examination or radiological examination alone. It helps to treat the gastritis patients by diagnosing the underlying cause and management accordingly.