bluuebunny/crossref_metadata_2025 huggingface dataset:
Loss of Life Transformer Prediction Based on Stacking Ensemble Improved by Genetic Algorithm By IJISRT
Authors: Shintabella Rosena , Edi Widodo Catur , Wibowo Adi
Published: March 2024

Prediction for loss of life transfomer is very important to ensure the reliability and efficiency of the power system. In this paper, an innovative model is proposed to improve the accuracy of lost of life transfomer prediction using stacking ensembles enhanced with genetic algorithm (GA). The aim is to develop a robust model to estimate the remaining life of a transformer in order to generally increase the reliability of the electrical energy distribution system. This approach involves integrating various machine learning models as a basic model, namely Support Vector Machines (SVM) and K-Nearest Neighbor (KNN). A stacking ensemble framework is then used to combine the predictions of these base models using a meta model namely Logistic Regression (LR). The results show a significant improvement in both transformers using stacking-GA, both TR-A and TR-B, with each prediction evaluation 99% and with a minimal error rate, namely approaching 0.the developed framework presents a promising solution for accurate and reliable transformer life prediction. By integrating a variety of basic models, applying improved stacking layouts using GA, these models offer valuable insights to improve maintenance strategies and system reliability in power grids.
Enhancing the Construction Efficiency of Mid Rise Construction Projects with Partial Precast Construction Technique By IJISRT
Authors: Pratap Deshmukh Vinita , Deshmukh Aarya
Published: March 2024

The primary success parameter of every construction project is to achieve the better quality products, in the most reasonable time and at an economic cost. Along with the materials the method of construction used in mid rise construction projects contributes mainly for the cost of the project, time duration to complete the project & structural behavior such as stability, durability, quality etc. of these structures. This paper is about understanding the need for creating an awareness about the construction method to be adopted & enhancing the construction efficiency of mid rise construction projects with partial precast concrete construction technique. The study also speaks about the cost, time and quality effectiveness as compared to cast in-situ concrete construction techniques for the mid rise construction projects. The research findings shows that partial precast construction for mid rise construction projects is time and quality effective. Thus, we can achieve the cost effectiveness in partial precast concrete construction if the recommendations made are implemented.
Gustavo Gutierrez and the Economic Realities of Africa: An African Theological Reflection
Authors: Alloteh Michael Kwasi IiamofiG
Published: March 2024

The purpose of this study is to find out how Gustavo Gutierrez used theological reflection and praxis to effectively impact the economic and social life of his home country, Peru and Latin America at large and to establish the lessons African theologians can imbibe from him. The methodology used was a secondary qualitative analysis of literature. In this regard the works of Gutierrez were reviewed. Key strands of African theological reflection were reviewed. The analysis of various perspectives was done to establish their respective impact on the socio-economic life of their people. The key findings are that African theologians were preoccupied with theological phenomenon at seminar and conference levels in coming up with various strands of African theological reflections. On the other hand, Gutierrez did his theological reflection from the point of view of the suffering poor thereby reflecting on what type of theology was needed to permanently change the narratives of the poor. The concluding lessons for African Theologians include a preferential option for the poor, social ministries in the Church should demonstrate incarnation, divine spirituality should entail a commitment to the poor and oppressed, and the establishment of concrete corrective actions. The importance of the Church Community in the divine enterprise for taking ample notice of the presence of the poor and working without fail to change their story. This is a scholarly contribution to harnessing the synergy among strands of African theology towards effective and practical advocacy and activities towards the eradication of abject poverty from Africa and the development of the continent. The paper contributes to the search for practical steps to reduce or end the abject poverty and poor development trajectory in Africa.

Keywords: Theology, Economic, poverty, oppressed poor, incarnational ministry
A MODIFIED NEWTON-SECANT METHOD FOR SOLVING NONSMOOTH GENERALIZED EQUATIONS
Authors: de Sousa Amaral Vitaliano , Marques dos Santos Paulo Sérgio , Silva Gilson N. , Souza Sissy
Published: March 2024

In this paper, we study the solvability of nonsmooth generalized equations in Banach spaces using a modified Newton-secant method, by assuming a Hölder condition. Also, we generalize a Dennis-Moré theorem to characterize the superlinear convergence of the proposed method applied to nonsmooth generalized equations under strong metric subregularity. Numerical examples are provided to illustrate the effectiveness of our approach.
COMPARATIVE ANALYSIS OF MODELS OF GENETIC AND NEURONAL NETWORKS
Authors: Ogorelova Diana , Sadyrbaev Felix
Published: March 2024

The comparative analysis of systems of ordinary differential equations, modeling gene regulatory networks and neuronal networks, is provided. In focus of the study are asymptotical behavior of solutions, types of attractors. Emphasis is made on the chaotic behavior of solutions.
Rest-frame UV Colors for Faint Galaxies at z ∼ 9–16 with the JWST NGDEEP Survey
Authors: Morales Alexa M. , Finkelstein Steven L. , Leung Gene C. K. , Bagley Micaela B. , Cleri Nikko J. , Dave Romeel , Dickinson Mark , Ferguson Henry C. , Hathi Nimish P. , Jones Ewan , Koekemoer Anton M. , Papovich Casey , Pérez-González Pablo G. , Pirzkal Nor , Smith Britton , Wilkins Stephen M. , Yung L. Y. Aaron
Published: March 2024

We present measurements of the rest-frame UV spectral slope, β, for a sample of 36 faint star-forming galaxies at z ∼ 9–16 discovered in one of the deepest JWST NIRCam surveys to date, the Next Generation Deep Extragalactic Exploratory Public Survey. We use robust photometric measurements for UV-faint galaxies (down to M
UV ∼ −16), originally published in Leung et al., and measure values of the UV spectral slope via photometric power-law fitting to both the observed photometry and stellar population models obtained through spectral energy distribution (SED) fitting with Bagpipes. We obtain a median and 68% confidence interval for β from photometric power-law fitting of

β

PL

=
−

2.7

−
0.5

+
0.5

and from SED fitting,

β

SED

=
−

2.3

−
0.1

+
0.2

for the full sample. We show that when only two to three photometric detections are available, SED fitting has a lower scatter and reduced biases than photometric power-law fitting. We quantify this bias and find that after correction the median

β

SED
,
corr

=
−

2.5

−
0.2

+
0.2

. We measure physical properties for our galaxies with Bagpipes and find that our faint (

M

UV

=
−

18.1

−
0.9

+
0.7

) sample is low in mass (

log
[

M

*

/

M

⊙

]
=

7.7

−
0.5

+
0.5

), fairly dust-poor (

A

v

=

0.1

−
0.1

+
0.2

mag), and modestly young (

log
[
age
]
=

7.8

−
0.8

+
0.2

yr) with a median star formation rate of

log
(
SFR
)
=
−

0.3

−
0.4

+
0.4

M

⊙

yr

−
1

. We find no strong evidence for ultrablue UV spectral slopes (β ∼ −3) within our sample, as would be expected for exotically metal-poor (Z/Z
⊙ < 10−3) stellar populations with very high Lyman continuum escape fractions. Our observations are consistent with model predictions that galaxies of these stellar masses at z ∼ 9–16 should have only modestly low metallicities (Z/Z
⊙ ∼ 0.1–0.2).
On the Maximum Black Hole Mass at Solar Metallicity
Authors: Romagnolo Amedeo , Gormaz-Matamala Alex C. , Belczynski Krzysztof
Published: March 2024

In high-metallicity environments the mass that black holes (BHs) can reach just after core collapse widely depends on how much mass their progenitor stars lose via winds. On one hand, new theoretical and observational insights suggest that early-stage winds should be weaker than what many canonical models prescribe. On the other hand, the proximity to the Eddington limit should affect the formation of optically thick envelopes already during the earliest stages of stars with initial masses M
ZAMS ≳ 100 M
⊙, hence resulting in higher mass-loss rates during the main sequence. We use the evolutionary codes MESA and Genec to calculate a suite of tracks for massive stars at solar metallicity Z
⊙ = 0.014, which incorporate these changes in our wind-mass-loss prescription. In our calculations we employ moderate rotation, high overshooting, and magnetic angular momentum transport. We find a maximum BH mass

M

BH
,
max

=
28.3

M
⊙ at Z
⊙. The most massive BHs are predicted to form from stars with M
ZAMS ≳ 250 M
⊙, with the BH mass directly proportional to its progenitor’s M
ZAMS. We also find in our models that at Z
⊙ almost any BH progenitor naturally evolves into a Wolf–Rayet star due to the combined effect of internal mixing and wind mass loss. These results are considerably different from most recent studies regarding the final mass of stars before their collapse into BHs. While we acknowledge the inherent uncertainties in stellar evolution modeling, our study underscores the importance of employing the most up-to-date physics in BH mass predictions.
Lessons Learned from NASA’s DART Impact about Disrupting Rubble-pile Asteroids
Authors: Raducan S. D. , Jutzi M. , Merrill C. C. , Michel P. , Zhang Y. , Hirabayashi M. , Mainzer A.
Published: March 2024

We present a series of numerical simulations using a shock physics smoothed particle hydrodynamics code, investigating energetic impacts on small celestial bodies characterized by diverse internal structures, ranging from weak and homogeneous compositions to rubble-pile structures with varying boulder volume packing. Our findings reveal that the internal structure of these rubble-pile bodies significantly influences the impact outcomes. Specifically, we observe that the same impact energy can either catastrophically disrupt a target with a low boulder packing (≲30 vol%), or result in the ejection of only a small fraction of material from a target with the same mass but high boulder packing (≳40 vol%). This finding highlights the pivotal role played by the rubble-pile structure, effectively acting as a bulk shear strength, which governs the size and behavior of the resulting impact. Consequently, understanding and characterizing the internal structure of asteroids will be of paramount importance for any future efforts to deflect or disrupt an asteroid on a collision course with Earth.
Earthworms as a prey source for an insular Thamnophis
Authors: Ray Julie , Wergeland Rowan , Karafa Jeffery
Published: March 2024

Insular organisms evolve in closed systems; thus, changes caused by introduced species can drastically change their ecology. Isle Royale National Park is a remote island in Lake Superior that, until relatively recently, was void of earthworms. Its two native natricine snakes are known to feed on earthworms on the mainland, but it has now been confirmed that Eastern Gartersnakes (Thamnophis sirtalis) are feeding on earthworms on Isle Royale. It is unknown how the new dietary source will impact the snakes on Isle Royale.
A new species of Uscanoidea Girault (Hymenoptera, Trichogrammatidae), an egg parasitoid of Monalonion dissimulatum Distant (Hemiptera, Miridae)
Authors: Gamboa Jean , Pérez-Benavides Lucía , Ospina-Peñuela Esaú , Serna Francisco , Viggiani Gennaro
Published: March 2024

A new species of Uscanoidea Girault (Hymenoptera: Trichogrammatidae), Uscanoidea ricoi Viggiani, Gamboa & Pérez-Benavides, sp. nov., is described and illustrated. The species is a solitary egg parasitoid of Monalonion dissimulatum Distant (Hemiptera: Miridae), the main insect pest on cocoa crops. An identification key for the described Uscanoidea species of the world is provided. The new species has a high potential for the biological control of the true bug M. dissimulatum in cocoa plantations in the Neotropical region.
Experience in the production of 99Mo from low enriched uranium at the VVR-ts research nuclear facility
Authors: Kochnov Oleg Yu. , Stepanov Valery I. , Pakholik Denis A. , Kolesov Valery V. , Nikulin Evgeny V.
Published: March 2024

The key industrial method for producing 99Mo is production of the radionuclide as one of the 235U fission fragments. 235U is irradiated with neutrons in a nuclear reactor (both heterogeneous and homogeneous nuclear reactors can be used) and then processed in radiochemical laboratories, where 99Mo is chemically extracted from fission products. Both highly enriched uranium (HEU) and low enriched uranium (LEU) can be used to produce 99Mo by the fragmentation method. To date, almost all world producers, with the exception of Russia, are either in the final stages of transferring production from highly enriched uranium to low enriched uranium, or are already producing 99Mo using LEU. This is due to the problems of non-proliferation of nuclear materials and the prevention of the likelihood of terrorist threats. A number of experimental studies have been carried out on the basis of the VVR-ts research reactor. Experimental studies included the study of the effect of LEU targets on the reactivity reserve of the VVR-ts reactor, irradiation of these targets in experimental channels and separation of 99Mo from them. The paper presents the results of producing and separating 99Mo from targets with LEU material. It is shown that it is necessary to improve the processing technology to increase the production of fragmented 99Mo from LEU.
Assessment of Microvascular Changes After Rhegmatogenous Retinal Detachment Repair Using Wide-Field Swept-Source Optical Coherence Tomography Angiography
Authors: Tandias Rachel , Garg Itika , Duich Margaret J. , Vingopoulos Filippos , Katz Raviv , Zeng Rebecca , Kim Leo A. , Husain Deeba , Eliott Dean , Patel Nimesh A. , Miller John B. , Tandias Rachel , Garg Itika
Published: March 2024

Background and Objective:

Our objective was to evaluate retinal microvascular changes and visual outcomes following rhegmatogenous retinal detachment (RRD) repair using wide-field swept-source optical coherence tomography angiography (WF SS-OCTA).

Patients and Methods:

The study included 116 eyes of 111 patients with macula-off (
n
= 68) or macula-on (
n
= 48) RRD treated with a single successful procedure, 79 fellow eyes, and 183 eyes of control patients imaged with WF SS-OCTA (3 ×3, 6 ×6, and 12 ×12 mm images). Mixed-effects multiple linear regression models were used for statistical analysis.

Results:

Vessel density (VD) and vessel skeletonized density (VSD) of the superficial capillary plexus (3 ×3 mm scans) and full-thickness retina (12 ×12 mm) were significantly reduced in RRD eyes compared to fellow and control eyes. Decreased VSD and VD in all layers (3 ×3 mm and 6 ×6 mm) were significantly associated with greater preoperative extent of retinal detachment (
P
< 0.05) and poorer postoperative best-corrected visual acuity (BCVA) in RRD eyes (
P
< 0.05). Macula-off status was associated with increased foveal avascular zone irregularity (12 ×12 mm,
P
= 0.02).

Conclusions:

Decreased VD on WF SS-OCTA is associated with poorer postoperative BCVA following RRD repair.

[
Ophthalmic Surg Lasers Imaging Retina
2024;55:310–317.]
Investigating the Utility of Near-Infrared Reflectance Imaging for Diabetic Retinopathy Screening
Authors: Patil Sachi A. , Guttha Samyuktha P. , Nair Archana A. , Pandit Saagar , Parikh Ravi , Lee Ting-Fang , Hu Jiyuan , Mehta Nitish , Modi Yasha S.
Published: March 2024

Background and Objective:

We investigated the reliability of near-infrared reflectance (NIR) imaging as a method of assessing severity of diabetic retinopathy (DR).

Patients and Methods:

One hundred ninety-five NIR images were reviewed by two graders for the number of hyporeflective foci, presence or absence of vascular abnormalities, and presumptive DR stage; these were correlated to fundus photography-defined DR stage. Interrater reliability was confirmed via one-way random effects model of intraclass correlation coefficients. Analysis of variance was used in subgroup analysis, receiver operating characteristic (ROC) curves were created to validate reliability of the model, and logistic regression was used to model foci and vascular abnormalities as predictors for moderate or worse disease.

Results:

A statistically significant difference in mean number of hyporeflective foci was found between no DR and moderate non-proliferative DR (NPDR;
P
< 0.0001), no DR and severe NPDR (
P
< 0.001), no DR and proliferative DR (PDR;
P
< 0.0001), mild and moderate NPDR (
P
= 0.008), mild and severe NPDR (
P
< 0.001), and mild NPDR and PDR (
P
< 0.001). The area under the ROC curve was 0.849 (CI: 0.792 to 0.905). The threshold for detection of moderate NPDR or worse was 4.75 foci, with a sensitivity of 79.0% and a false positive rate of 20.0%. Multivariate logistic regression model incorporating hyporeflective foci with vascular abnormalities (odds ratio [OR] = 1.592, 95% CI: 1.381 to 1.835;
P
< 0.001) was able to accurately predict moderate disease or worse, just moderate disease (OR = 1.045, 95% CI: 1.003 to 1.089;
P
= 0.035), severe disease (OR = 1.050, 95% CI: 1.006 to 1.096;
P
= 0.027), and proliferative disease (OR = 1.050, 95% CI: 1.008 to 1.095;
P
= 0.018).

Conclusions:

NIR imaging may be an adjunct tool in screening for DR.

[
Ophthalmic Surg Lasers Imaging Retina
2024;55:318–325.]
Retinal Nerve Fiber Layer Changes in Patients With Chronic Obstructive Pulmonary Disease Compared to Healthy Controls: A Meta-analysis
Authors: Kazantzis Dimitrios , Machairoudia Genovefa , Kandarakis Stylianos , Theodossiadis George , Theodossiadis Panagiotis , Chatziralli Irini
Published: March 2024

Background and Objective:

This study investigated changes in retinal nerve fiber layers (RNFL) in patients diagnosed with chronic obstructive pulmonary disease (COPD) compared to healthy control patients, using optical coherence tomography.

Methods:

PubMed, Cochrane Library, and Google Scholar databases were systematically searched for published articles comparing RNFL between patients with COPD and healthy controls. Standardized mean difference (SMD) with 95% confidence interval (CI) was computed to compare continuous variables.

Results:

Average RNFL thickness was significantly reduced in COPD patients compared to healthy controls (SMD = −0.31, 95% CI = −0.48 to −0.14,
P
= 0.0004, I
2
= 0%). Average RNFL thickness did not differ significantly between patients with mild/moderate COPD and healthy controls (SMD = −0.17, 95% CI = −0.39 to 0.04,
P
= 0.12, I
2
= 2%), while a statistically significant reduction in average RNFL thickness was noticed in patients with severe COPD compared to healthy controls (SMD = −0.72, 95% CI = −1.23 to −0.21,
P
= 0.006, I
2
= 83%). Average RNFL thickness was significantly higher in patients with mild/moderate COPD compared to patients with severe COPD (S
MD
= 0.69, 95% CI = 0.29 to 1.09,
P
= 0.0008, I
2
= 66%).

Conclusions:

This meta-analysis showed that RNFL thickness was decreased in patients with COPD compared to healthy controls. Patients diagnosed with severe COPD seem to be more affected and have thinner RNFL.

[
Ophthalmic Surg Lasers Imaging Retina
2024;55:334–342.]
Preoperative Visual Acuity Thresholds in Pars Plana Vitrectomy for Epiretinal Membrane: A Systematic Review
Authors: Pandya Bhadra U. , Popovic Marko M. , Patil Nikhil S. , Al-Rubaie Sammy , Kertes Peter J. , Muni Rajeev H.
Published: March 2024

Background and Objective:

This review consolidates findings from studies that used a preoperative visual acuity (VA) threshold as an indication for epiretinal membrane (ERM) surgery.

Methods:

The literature was systematically searched using Ovid MEDLINE, EMBASE, and Cochrane Library from January 2000 to October 2022 to select studies reporting on pars plana vitrectomy (PPV) for ERM that used a preoperative VA threshold as an inclusion criterion. Primary outcomes were final best-corrected visual acuity (BCVA) and change in BCVA relative to baseline. Secondary outcomes included risk of intra- and postoperative complications.

Results:

A total of 639 eyes from seven studies were included. The most liberal preoperative VA threshold was 20/28.5 or worse, whereas the most conservative threshold was worse than 20/60. The mean preoperative BCVA was 0.55 logarithm of the minimum angle of resolution (logMAR) (∼20/70), and the mean postoperative BCVA was 0.35 logMAR (∼20/45). Generally, VA improved relative to baseline, regardless of the preoperative VA threshold. The smallest improvement in VA was observed in a study where the pre-operative VA to consider surgery was liberal (20/30 or worse), whereas the greatest VA improvement was observed in a study that used a conservative preoperative VA threshold (worse than 20/60).

Conclusions:

The greatest improvement in BCVA was observed in studies where a conservative pre-operative VA threshold was used. The decision to operate should involve a patient-centered approach with a thorough discussion of the risks and benefits of PPV, regardless of the preoperative VA threshold used.

[
Ophthalmic Surg Lasers Imaging Retina
2024;55:400–407.]
Spatiotemporal variation of the major meteorological elements in an agricultural region: A case study of Linyi City, Northern China
Authors: Li Li , Lu Xiaoning , Jun Wu
Published: March 2024

Evaporation is a key element of the water and energy cycle and is essential in determining the spatial and temporal variations of meteorological elements. In particular, evaporation is crucial for thoroughly understanding the climate variations of a region. In this study, we discussed evaporation, precipitation, and temperature by adopting Linyi City in Shandong Province, China, which is an important agricultural region, as a research case. Linear regression analysis, the empirical orthogonal decomposition function, and the Morlet wavelet function were used to reveal the trends, spatiotemporal modes, and multi-time scale characteristics of the three climate factors and provide a theoretical basis for the efficient use of climate resources in the future development of regional agriculture. Results showed that the precipitation (2.09 mm/a) and temperature (0.04 ℃/a) in Linyi City exhibited a synchronous growth trend. Conversely, evaporation (−6.47 mm/a) showed a decreasing trend and the evaporation paradox because of the considerable decrease in evaporation energy. Regional development of water-consuming agriculture in consideration of global warming is a key point for improving water use efficiency in Linyi City. In terms of spatial distribution, precipitation was dominated by the first mode wherein low precipitation was observed at the early stage, and high precipitation occurred at the late stage. The first mode was supplemented by the second mode wherein an inverse phase change occurred in the southeast-northwest direction. Large interannual fluctuations were observed only in Yinan County. Temperature exhibited a pattern of warming change with high homogeneity. Evaporation demonstrated obvious heterogeneity and was dominated by two major modes, and the difference in evaporation between Junan County and the other regions of Linyi City was large. Therefore, the local regional climate changes in Yinan and Junan should be given attention. All three meteorological elements showed interannual and interdecadal variations in the short (5 a), medium (16 a), and long (25 a) terms, with precipitation, temperature, and evaporation dominated by 16 a, 24 a, and 31 a, respectively. In the short-term future, the regional precipitation and temperature in Linyi will experience decrements that are above the multiyear average, and evaporation will increase to above the multiyear average. Given the changing trends of precipitation, temperature, and evaporation, urgent requirements for the regional development of efficient water-saving irrigation and the promotion of digital agriculture should be proposed.
Further improvements of the Jensen inequality in the integral sense by virtue of 6-convexity along with applications
Authors: Sohail Asadullah , Khan Muhammad Adil , Nasr Emad Abouel , Ding Xiaoye
Published: March 2024

The Jensen inequality is of fundamental importance because of its influential and interesting consequences. In recent years, the Jensen inequality has been supposed to be the most engaging source for research. We present interesting improvements to the continuous version of Jensen's inequality through the application of the concept of 6-convexity. For real visualization and comparison to other results, some numerical experiments were provided. With the aid of the acquired results, improvements for the Hermite-Hadamard and Hölder inequalities were presented. Some relationships between the means were granted as applications of established improvements. In addition, some estimations of the Csiszár divergence and its associated cases were received as further applications of the obtained results. The major techniques employed in formulating the proposed improvements included the Jensen inequality and the concept of convexity.
Exploring analytical results for (2+1) dimensional breaking soliton equation and stochastic fractional Broer-Kaup system
Authors: Hasan Faeza Lafta , Abdoon Mohamed A. , Saadeh Rania , Qazza Ahmad , Almutairi Dalal Khalid
Published: March 2024

This paper introduces a pioneering exploration of the stochastic (2+1) dimensional breaking soliton equation (SBSE) and the stochastic fractional Broer-Kaup system (SFBK), employing the first integral method to uncover explicit solutions, including trigonometric, exponential, hyperbolic, and solitary wave solutions. Despite the extensive application of the Broer-Kaup model in tsunami wave analysis and plasma physics, existing literature has largely overlooked the complexity introduced by stochastic elements and fractional dimensions. Our study fills this critical gap by extending the traditional Broer-Kaup equations through the lens of stochastic forces, thereby offering a more comprehensive framework for analyzing hydrodynamic wave models. The novelty of our approach lies in the detailed investigation of the SBSE and SFBK equations, providing new insights into the behavior of shallow water waves under the influence of randomness. This work not only advances theoretical understanding but also enhances practical analysis capabilities by illustrating the effects of noise on wave propagation. Utilizing MATLAB for visual representation, we demonstrate the efficiency and flexibility of our method in addressing these sophisticated physical processes. The analytical solutions derived here mark a significant departure from previous findings, contributing novel perspectives to the field and paving the way for future research into complex wave dynamics.
On the packing number of $ 3 $-token graph of the path graph $ P_n $
Authors: Ndjatchi Christophe , Fernández Joel Alejandro Escareño , Ríos-Castro L. M. , Ibarra-Pérez Teodoro , Correa-Aguado Hans Christian , Martínez Hugo Pineda
Published: March 2024

In 2018, J. M. Gómez et al. showed that the problem of finding the packing number $ \rho(F_2(P_n)) $ of the 2-token graph $ F_2(P_n) $ of the path $ P_n $ of length $ n\ge 2 $ is equivalent to determining the maximum size of a binary code $ S' $ of constant weight $ w = 2 $ that can correct a single adjacent transposition. By determining the exact value of $ \rho(F_2(P_n)) $, they proved a conjecture of Rob Pratt. In this paper, we study a related problem, which consists of determining the packing number $ \rho(F_3(P_n)) $ of the graph $ F_3(P_n) $. This problem corresponds to the Sloane's problem of finding the maximum size of $ S' $ of constant weight $ w = 3 $ that can correct a single adjacent transposition. Since the maximum packing set problem is computationally equivalent to the maximum independent set problem, which is an NP-hard problem, then no polynomial time algorithms are expected to be found. Nevertheless, we compute the exact value of $ \rho(F_3(P_n)) $ for $ n\leq 12 $, and we also present some algorithms that produce a lower bound for $ \rho(F_3(P_n)) $ with $ 13\leq n\leq 44 $. Finally, we establish an upper bound for $ \rho(F_3(P_n)) $ with $ n\geq 13 $.
Analytic approximations for European-style Asian spread options
Authors: Chen Boling , Deng Guohe
Published: March 2024

Spread option is a exotic option, which allows investors to simultaneously take positions in two correlated underlying assets and profit from their price difference over some spread. This option provides stable investment opportunities for practitioners in unpredictable and complex financial markets. However, investors of the spread option may face problems caused by manipulating the two underlying assets' prices near the expiry, compared to plain vanilla options. To overcome such disadvantages, we propose Asian-spread options, which are linked to the price difference between two average prices of two underlying assets over the life of the option, and exhibit the original properties of standard spread options. In this paper, using distribution-approximating and moment-matching approaches, lower bounds of prices for the European spread option on the geometric average Asian option and arithmetic average Asian option are obtained in the classical Black-Scholes model. We verified the pricing accuracy of the proposed Asian-spread options by comparing our solutions with those obtained by Monte Carlo simulations. Finally, we analyzed the influence of stock price, maturity date, and some model parameters on option price and delta value through numerical examples. Numerical results showed that the lower bounds had a very high precision.
Symmetry analysis for nonlinear fractional terminal system under $ w $-Hilfer fractional derivative in different weighted Banach spaces
Authors: Aldwoah K. A. , Almalahi Mohammed A. , Shah Kamal , Awadalla Muath , Egami Ria H. , Abuasbeh Kinda
Published: March 2024

Our objective in this study is to investigate the behavior of a nonlinear terminal fractional system under $ w $-Hilfer fractional derivative in different weighted Banach spaces. We examine the system's dynamics and understand the effects of different weighted Banach spaces on the properties of solutions, including existence, uniqueness, stability, and symmetry. We derive the equivalent integral equations and employ the Schauder and Banach fixed point theorems. Additionally, we discuss three symmetric cases of the system to show how the choice of the weighted function $ w(\iota) $ impacts the solutions and their symmetry properties. We study the stability of the solutions in the Ulam sense to assess the robustness and reliability of these solutions under various conditions. Finally, to understand the system's behavior, we present an illustrative example with graphs of the symmetric cases.
An analytical approximation of European option prices under a hybrid GARCH-Vasicek model with double exponential jump in the bid-ask price economy
Authors: Huang Shoude , He Xinjiang , Qian Shuqu
Published: March 2024

Conic finance theory, which has been developed over the past decade, replaces classical one-price theory with the bid-ask price economy in option pricing since the one-price principle ignores the bid-ask spread created by market liquidity. Within this framework, we investigate the European option pricing problem when stochastic interest rate, stochastic volatility, and double exponential jump are all taken into account. We show that the corresponding bid and ask prices can be formulated into a semi-analytical form with the Fourier-cosine method once the solution to the characteristic function is obtained. Some interesting properties regarding the new results are displayed via numerical implementation.
El Sistema constructivo modular Walluminium, análisis de la envolvente hermética y termoacústica y su sistema de producción
Authors: Meire Carolina , Liñares Patricia , Hermo Víctor
Published: March 2024

Estudio teórico y experimental de la envolvente hermética y termoacústica de un nuevo sistema constructivo industrializado, desarrollado para la ejecución de viviendas modulares de consumo energético cercano a cero. Que complementa a la patente “Panel modular de aluminio extrusionado para la ejecución de envolventes estructurales ventiladas con captación solar”. El planteamiento desarrolla la demostración de las exigencias normativas para edificaciones residenciales, con el cumplimento de las prestaciones termoacústicas, herméticas y de resistencia al fuego, de los elementos constructivos diseñados. Posteriormente se verifica la comprobación real del sistema mediante la ejecución de una vivienda que incorpora a su vez estrategias de la arquitectura bioclimática. El estudio concluye demostrando las cualidades intrínsecas del innovador sistema; versatilidad de diseño, transportabilidad, ligereza y facilidad de montaje, garantizando la viabilidad del mismo sin comprometer la eficiencia de su producción. Resolviendo en un único sistema constructivo integrado el cumplimento normativo y la demanda del mercado actual.
El planteamiento desarrolla la demostración de las exigencias normativas para edificaciones residenciales, con el cumplimento de las prestaciones termoacústicas, herméticas y de resistencia al fuego, de los elementos constructivos diseñados. Posteriormente se verifica la comprobación real del sistema mediante la ejecución de una vivienda que incorpora a su vez estrategias de la arquitectura bioclimática.
El estudio concluye demostrando las cualidades intrínsecas del innovador sistema; versatilidad de diseño, transportabilidad, ligereza y facilidad de montaje, garantizando la viabilidad del mismo sin comprometer la eficiencia de su producción. Resolviendo en un único sistema constructivo integrado el cumplimento normativo y la demanda del mercado actual.
Un tejado moderno para la cúpula de la iglesia de Sales
Authors: Cortés Meseguer Luis , Pardo-Conejero José
Published: March 2024

La iglesia de Sales de Sueca (Valencia) presenta la particularidad de que en 1919 se construyó la quinta cúpula en apenas siglo y medio de existencia. Durante el siglo XX se realizaron distintas reparaciones y recientemente, tras un temporal, la cúpula presentaba estado de ruina y que era urgente su intervención. A partir de ahí, debía seguirse una metodología de estudio y de trabajo para llegar a conclusiones determinantes en poco tiempo, teniendo en cuenta que el acabado estético podría verse modificado y que debía contar con la autorización patrimonial. Gracias a un estudio completo con búsqueda en archivos, cálculos estructurales, del comportamiento térmico y, sobre todo, del estudio directo del artefacto constructivo, se ha seguido un proceso con el resultado final de la reconstrucción de dicha cúpula en el que está plenamente justificada su cobertura con tejas de color verde, el propio del cobre oxidado.
Tale of Two Journeys
Authors: Strubchevska Kateryna , Kozyk Marko
Published: March 2024

Given the ongoing war in Ukraine, we hope our personal story will appeal to people. Our article aims to help readers understand the challenges medical professionals face coming to the United States. We escaped the horrors of the war and lost everything we had, except our hope. This year, only 10 Ukrainian physicians were selected as medical residents in US medical training programs, and we are honored to be two of them.
Introducing Mindfulness Practices to the Healer’s Art Course for Medical Students: A Feasibility Study
Authors: Saint Kirin , Corbin C. Kenzie , Barton Michael F. , Barrett Julie , Burrows Heather L.
Published: March 2024

Introduction: Burnout is common among medical students in the United States and can be debilitating. Mindfulness practices can reduce stress levels and burnout. Integrating mindfulness practices into pre-existing medical courses such as the Healer’s Art can potentially reduce burnout.
Methods: We evaluated the impact of introducing meditation and yoga into the Healer’s Art course at a midwestern medical school. Half of the students were randomized into a meditation class (n=11) and the other half were randomized into a yoga class (n=12). Students were given pre- and post- session surveys to assess measures of mindfulness, burnout, and energy levels, adapted from validated survey instruments. Paired two-sample t tests were used to assess the relationship between each intervention and each pre-specified outcome.
Results: Twenty-three medical students participated in a one-time yoga or meditation session. The yoga intervention resulted in a statistically significant increase in energy and breath awareness outcomes. The meditation intervention resulted in a significant increase in mindfulness. Both yoga and meditation were found to decrease burnout among participants in the immediate aftermath. Ninety-six percent of participants (22 of 23) expressed that mindfulness practices should be incorporated into future the Healer’s Art courses, with a mean recommendation score of 4.5 out of 5.
Conclusion: Yoga and meditation classes might reduce medical student burnout. Randomized control trials are needed to assess longevity and generalizability of findings.
Pavages, garages, dallages
Authors: Baldasseroni Louis
Published: March 2024

Les rues font partie de ces paysages du quotidien tellement banals qu'ils ont peu intéressé la recherche historique. Cet ouvrage propose une histoire de la rue aux XIXe et XXe siècles, à travers ses réalités matérielles : du lampadaire à l'abribus, en passant par le pavé et le bitume des chaussées, chaque élément de la rue a sa propre histoire. Ces divers éléments, combinés de manière plus ou moins intentionnelle par les techniciens et urbanistes, forment des paysages de rues identifiables à des idéaux-types qui peuvent renvoyer à des époques bien identifiées (le grand boulevard dit « haussmannien ») ou être vus comme intemporels (la petite rue résidentielle de quartier périphérique).Fondé principalement sur des observations de rues de Lyon mais destiné à toute personne intéressée par les villes et leur aménagement, cet ouvrage propose d'éclairer le fonctionnement de l’aménagement des rues : domaine technique en apparence, politique dans les faits, avec des usagers qui s’affirment de plus en plus, obligeant les pouvoirs publics à mettre très tôt en place des espaces de concertation. Chaque rue a une histoire, souvent différente de celle d’à côté, par la diversité de ceux qui la gèrent et s’en préoccupent : l’histoire des rues est aussi une histoire sociale, faite de débats entre techniciens, de mobilisations habitantes et de choix politiques variables selon les territoires et les époques.En remontant le temps à la recherche des rues, le lecteur pourra trouver des clés de lecture de la ville d’aujourd’hui, à travers ses paysages et certaines problématiques d’aménagement : l’adaptation de la ville aux évolutions des déplacements, l’aménagement des espaces publics ou la protection face aux nuisances des transports sont plus que jamais d’actualité.
« Et cum prius fuisset ferus et crudelis […] » : Ruggero II nella cronaca di Santa Maria della Ferraria (sec. XIII)
Authors: Loffredo Mario
Published: March 2024

Cette contribution analyse la Chronica Romanorum pontificum et imperatorum ac de rebus in Apulia gestis, un texte peu étudié mais particulièrement intéressant dans le panorama de la production historiographique du Sud de l’Italie dans la première moitié du XIIIe siècle. Écrite par un moine anonyme de l’abbaye cistercienne de Santa Maria della Ferraria, en Campanie, l’œuvre constitue le seul texte historique de grande envergure produit dans le monde cistercien du Mezzogiorno. Nous étudions en particulier la figure de Roger II, décrite par le chroniqueur anonyme, qui, tout en n’étant pas animé d’une intention anti-normande, le représente d’abord comme un tyran cruel. Néanmoins, par la suite, l’auteur cistercien propose l’image d’un souverain juste et pacifique. Nous essaierons donc de comprendre ce changement de perspective à la lumière d’une interprétation tenant compte du contexte littéraire cistercien et de la perception du Regnum dans la trajectoire historique tracée dans la chronique.
Une entreprise mémorielle dans l’abbaye de Fontenelle au XIe siècle
Authors: Trân-Duc Lucile
Published: March 2024

Le monastère de Fontenelle, restauré par des moines originaires de Saint-Pierre de Gand, même s’il est moins connu que d’autres, devient à partir du XIe siècle l’un des foyers de production historiographique de la principauté normande. Y officie entre autres le moine Guillaume. Celui-ci, loin de développer le mythe de la table rase comme ce peut être le cas à Fécamp, s’attache au contraire à tracer un trait d’union entre l’abbaye pré-normande et son établissement. On lui doit la composition d’un sacramentaire destiné à servir les besoins du culte ainsi que la collecte de textes en circulation concernant le passé de Fontenelle : Gesta abbatum Fontanellensium, récits hagiographiques… Ceux-ci forment la première partie du Maius Chronicon Fontanellense, actuellement conservé à la bibliothèque municipale du Havre. Ce manuscrit constitue l’une des principales sources pour aborder le passé pré-normand de Fontenelle. Néanmoins, il importe de ne pas oublier que le moine Guillaume, tant dans son sacramentaire que dans son entreprise de copie, procède à un tri. C’est précisément sur ce processus mémoriel que l’on compte s’interroger. Sur quels fondements s’effectue la distinction entre ce qui est digne de mémoire et ce qu’il convient, ce qu’il est possible d’oublier aux yeux du moine Guillaume ? Quelle histoire tente-t-il d’écrire pour son monastère ?En quoi façonne-t-il un passé correspondant à la fois aux défis qu’a à relever la communauté restaurée de Fontenelle et aux structures mentales, sociales du XIe siècle ?
La topique des batailles chez les chroniqueurs normands du XIIe siècle
Authors: Courroux Pierre
Published: March 2024

Les batailles sont des événements propices pour étudier les mécanismes d’emprunts et de création historique. Plus que de donner des informations sur ce qui se passa effectivement lors d’un affrontement, les chroniqueurs médiévaux racontaient ce qui aurait dû se passer, un récit où les détails réels étaient enchâssés dans une narration exemplaire, faite d’un mélange de copie de modèles anciens et d’imagination historique. Nous étudions ici plusieurs histoires des ducs de Normandie dans un large XIIe siècle, qui partagent un sujet commun et des sources souvent identiques (Dudon de Saint-Quentin). Pour se démarquer, chaque historien dut user de subtiles variations dans une trame identique. Notre étude est fondée sur un répertoire des topoi dans les récits de bataille des chroniqueurs médiévaux sur lequel nous travaillons actuellement. Elle permettra de peser le rapport des historiens aux sources antiques, à la chanson de geste, mais aussi à leurs propres inventions.
Photographies d’un écrivain émergent. Une approche de l’iconographie simonienne
Authors: Mougin Pascal
Published: March 2024

L’étude des premières photographies de Simon portées au regard du public par les journaux et les magazines dans les années d’émergence de l’écrivain est l’occasion d’une réflexion plus large sur l’approche monographique des iconographies d’auteurs. Les notions d’ethos et de persona, de posture et de figure, ainsi que la distinction entre les contenus sémantiques, sémiologiques et sémiotiques des images de presse, permettent de dégager trois signifiés possibles présents à part variable dans les photographies d’écrivains : la personne, la personnalité, le personnage.
Permanences, mutations et résistances du corps de l’écrivain. De La Corde raide aux Corps conducteurs
Authors: Dirkx Paul
Published: March 2024

La Corde raide préfigure toute l’œuvre à venir. Ainsi, Les Corps conducteurs de 1971 sont la déconstruction en acte de la tradition du roman pseudo-réaliste qu’appelle de ses vœux l’essai paru vingt-quatre ans plus tôt. C’est ce que montre une analyse attentive à l’écriture des corps et à l’écriture comme produit d’un corps, celui de l’écrivain. Cette approche corpopoétique vient compléter les lectures existantes, en corrélant la « nausée » de l’auteur qui est au cœur de La Corde raide et celle du protagoniste des Corps conducteurs.
Claude Simon, chef de file d’Inculte ?
Authors: Baud Jean-Marc
Published: March 2024

Cet article se propose d’analyser l’héritage pluriel de Claude Simon au sein du collectif Inculte. Espace de circulation, de lecture et de commentaire de ses textes, le collectif, pourtant rétif à l’unification ou à l’homogénéisation, a trouvé dans l’œuvre de Simon un « point de ralliement ». Cette lecture croisée est interprétée singulièrement par ses écrivains qui, dans le creuset du roman simonien, forgent leur poétique propre, comme le montre une étude comparative de différentes œuvres de Claude Simon, Mathias Énard et Mathieu Larnaudie.
Pour une conception qualitative du pluralisme audiovisuel
Authors: Trouillard Pauline
Published: March 2024

L’arrêt du Conseil d’État du 13 février 2024 remet en cause la seule compatibilité du temps de parole des femmes et hommes politiques par l’ARCOM pour la mise en œuvre du principe de pluralisme. Il invite l’ARCOM à désormais prendre en compte le temps de parole des chroniqueur(se)s et des journalistes. Cet arrêt, nécessaire à l’heure où les talk-shows dominent le paysage audiovisuel, pose toutefois des questions pratiques sur lesquelles revient cet article, après avoir rappelé l’importance du principe de pluralisme pour la démocratie.
Semantic-Rich Recommendation System for Medical Emergency Response System
Authors: Karthika R. , Deborah L. Jegatha , Zheng Wenying , Alqahtani Fayez , Tolba Amr , Krishnan B. Gokula , Bansal Ritika
Published: March 2024

The emergency response process consists of methodical and coordinated series of actions and protocols executed by individuals and organizations to proficiently address crises. When planning for medical emergencies, it is vital to work with responsive medical organizations to ensure good communication and coordination. Unlike e-government processes, emergency response processes are focused on knowledge and may frequently change as the emergency situation develops. It is important to change the emergency response plan for dynamic situations and the proposed method helps to create a flexible plan for emergency responses. The proposed approach uses a system for organizing knowledge to figure out the needs and the resources essential for an emergency. It helps to identify the organizations to be involved based on their rules for mutual aid and jurisdiction. Experimental analysis shows that the proposed method outperforms Smart-c and DCERP in suggesting a greater number of hospitals during medical emergency and achieves 0.8, 0.9 and 0.9 precision, recall, and f-measure approximately.
The Outcomes of Collaborative Whole-School Professional Development on Teachers' Inclusive Practices in a Mainstream Secondary School
Authors: Flood Margaret , Logan Anna
Published: March 2024

The outcomes of a collaborative whole-school model of professional development on teachers' learning to enact an inclusive education initiative, in a mainstream post-primary school explores the outcomes of whole school collaborative professional development on teachers' learning in terms of the degree and quality of teacher change in relation to inclusive practices, in this instance specific to level two learning programmes (L2LPs) and what factors facilitated or hindered teachers' learning for enacting inclusive practices. The findings of this paper highlight the potential of facilitated PD to empower teachers to develop greater levels of knowledge, skills, and experience of inclusive practice to enable collective decision-making and enhanced planning and teaching for all learners. Though aimed at a specific programme (L2LPs), the authors believe this research has wider implications for supporting mainstream teachers build capacity in their inclusive practices generally.