bluuebunny/crossref_metadata_2025 huggingface dataset:
Hepatics from Rovno amber (Ukraine). 12. Jubula polessica sp. nov.
Authors: Mamontov Yuriy S. , Atwood John J. , Ignatov Michael S. , Vasilenko Dmitry V. , Legalov Andrei A. , Perkovsky Evgeny E.
Published: May 2024

A new fossil leafy liverwort species is described based on its inclusion in Eocene Rovno amber. This species has morphology that is characteristic of extant representatives of the families Frullaniaceae and Jubulaceae, i.e., conduplicate-trilobed leaves with a ventral lobule forming a saccate-clavate watersac with its mouth directed towards the base of the stem, larger dorsal lobes and deeply bifid underleaves. The leaf lobes in the studied plant seem to be dentate near the apex, a character state together with the shape of the underleaves and the underleaf insertion, connects the new species with the Jubulaceae, particularly the extant genera Jubula and Neohattoria, rather than with the Frullaniaceae. The minute size of the fossilized plant, as well as the shape and size of the ventral lobules is reminiscent of Neohattoria, but the more distant lobule position and presence of terminal gynoecia with a single floral series of bracts having entire margins better fit species of Jubula. The fossil is therefore better placed in Jubula, as J. polessica sp. nov., based on its overall morphological similarity with extant members of that genus.
Analysis of Variable Frequency Drive for Induction Motor using Matlab Software
Authors: Muhammad Zikri Hamim  , Suriana Salimin  , Afarulrazi Abu Bakar
Published: May 2024

Induction motors have become essential part in motor-driven machinery industries. However, the inability to regulate the speed of the load can present significant challenges in terms of machinery maintenance and energy consumption. This paper simulates and proposes a solution for the induction motor speed control which implements an inverter consisting of a Variable Frequency Drive (VFD) system using Matlab software. The aim is to analyze the impact of adding a VFD circuit to a three-phase motor system in terms of its starting current and speed. A VFD is highly beneficial for electric motors as it can optimize motor speed based on the specific requirements or desired speed settings. The method involves the uses of power electronic devices such as IGBT components. By controlling the duration of on-off time and the width of the pulse, a desired frequency can be obtained. By varying the frequency of the power supply to the motor, the synchronous speed can be controlled to the required value. Simulation results demonstrate that a circuit with a variable frequency drive (VFD) drastically reduces starting current, effectively minimizing power losses during motor start-up. Comparative analysis reveals that the VFD, the starting current surge to approximately 9A, a significant improvement compared to the 50A spike observed without the VFD. Additionally, the motor speed remains consistent in both scenarios, suggesting that the VFD does not adversely affect the motor's speed, which is 1490 rpm, while maintaining the voltage and current supplied to the load. The findings highlight the benefits of using a VFD in the motor system to improve energy efficiency and minimize power losses during operation.
The Properties of Normal Concrete with Ground Manganese Slag as Binder Replacement
Authors: Chee Khoon Ng  , Johnson Kwong Sen Ting  , Nichole Louise Jack  , Leonard Lik Pueh Lim  , Sim Nee Ting
Published: May 2024

Manganese slag is a by-product from the production of ferrosilicon and manganese alloys. It has been found to possess pozzolanic properties and is therefore suitable for use in concrete mixtures. This paper investigates the properties of normal concrete with ground manganese slag as a binder replacement in terms of workability, compressive strength, flexural strength, and leaching characteristics. In this study, it is found that using ground manganese slag as a binder replacement increases the slump of fresh concrete. It is also found that using ground manganese slag as a binder replacement reduces both the development of compressive and flexural strengths. However, at a 10% binder replacement rate, the deterioration is considered minimal. The results of leaching characteristics from 'The Tank Test' show that using ground manganese slag as a binder replacement increases the alkalinity of the solution surrounding the concrete, indicating that the metal ions in the ground manganese have diffused and dissolved in the solution.
The Effect of Palm Oil Biodiesel-Neat Diesel (B10-B50) Mixing Ratio on Physical Mechanism of Fuel Deposits Developed on Heated Al Surface
Authors: Favian Jikol  , Mohd Zaid Akop  , Yusmady Mohamed Ariifin  , Mohd Azli Salim  , Safarudin Gazali Herawan
Published: May 2024

To improve the physicochemical properties of biodiesel, researchers have been mixing pure biodiesel with neat diesel to produce blended fuels with certain blending ratios. However, one of the issues when combining ordinary diesel with biodiesel is the formation of deposits. In this study, the hot surface deposition test (HSDT) method was employed to investigate the effect of the mixing ratio on the deposition of diesel fuel (DF) and its blends with Malaysian palm oil biodiesel (B10-B50). The accumulated fuel deposits produced by the test fuels up to ND=16000 droplets were studied based on visual inspection and the use of a scanning electron microscope (SEM) to study the deposits’ composition. Generally, the higher the blend ratio, the more deposits were formed on the hot plate. Furthermore, a greater mass of deposits was produced during the wet condition (timp=3 seconds) test compared to that of the dry condition (timp=7 seconds) test. Deposits’ distribution area produced by the B30, B40, and B50 fuels were larger and appeared to be oily/greasy. Meanwhile, deposits produced by DF, B10, and B20 seem to be dry. The radius of the solid deposit was also larger during the wet condition test. For dry condition test at droplet ND=16000, the mass of deposit produced was 3.7mg (4mm radius) for DF, 3.9mg (5mm radius) for B10, 17.1mg (9mm radius) for B20, 24.0mg (9mm radius) for B30, 25.1mg (9mm radius) for B40, and 28.8mg (7mm radius) for B50. On the other hand, for the wet condition test, the mass of the deposit generated was 4.4mg (4mm radius) for DF, 8.9mg (7mm radius) for B10, 20.4mg (11mm radius) for B20, 31.1mg (13mm radius) for B30, 62.4mg (15mm radius) for B40, and 58.2mg (13mm radius) for B50, respectively. Additionally, the SEM analysis showed that the deposits’ composition for each test fuel primarily consists of carbon (>65%), with relatively lower oxygen concentration (<35%). The dry and wet condition also has a significant impact on the various deposits’ morphology.
Safe Energy using Hydraulic System Analysis at a Hydropower Plant
Authors: Wadhah Hussein Abdulrazzaq Al Doori  , Ali Mohammed Hussien
Published: May 2024

The Hydro-PowerStation is one of the keys (important) sources of electricity, and it has a digital governor, which improves production efficiency over mechanical governors. This research looked at the hydraulic turbine, found flaws such as oil leakage from the pumps utilized, calculated the amount of energy consumed, and worked to reduce it by measuring the losses and monitoring the poor process during periods of high water load of up to 83%. As a consequence of the research, it was discovered that the amount of energy consumed had decreased by 20%, by employing well-made, effective pumps for each unit according to its use, oil leakage in all units is reduced.
Designation of Nano-Analytical Reagents and Evaluation of Nano-Applications
Authors: Nemah Sahib Mohammed Husien  , Nagham Mahmood Aljamali
Published: May 2024

The nanostructures of materials are those that have intermediate sizes between molecular structures and between microstructures (micrometric in size). When describing nanostructures, it is necessary to distinguish between the number of dimensions according to the nanometer scale. The surfaces of the nano-textures are one-dimensional according to the nanometer scale, with the surface thickness of the object ranging between [0.1 and 100] nanometers. And nanotubes are two-dimensional according to the nanometer scale, the diameter of the tube ranges between [0.1 and 100] nanometers, and its length may be greater than that. Finally, the three-dimensional spherical nanoparticles are on the nanometer scale, where each spatial dimension of the particle ranges between [0.1 and 100] nm. The terms nanoparticles and ultrafine particles are often used synonymously even though ultrafine particles can reach into the micrometric range. The term 'nanostructure' is often used when referring to magnetic technology., All Nano Analytical reagents analysed by instrumental analysis that gave clear evidences of their chemical structures via many technical instruments like (FT IR-Spectra, 1H.NMR-Spectra, 13C.NMR-Spectra, and Nano-Study by Scanning Electron Microscopy (FESEM).
Unsteady Flow of Hybrid Nanofluids Subjected to a Stretching/Shrinking Sheet with Heat Generation
Authors: Noorina Abdul Rahman  , Najiyah Safwa Khashi’ie  , Iskandar Waini  , Khairum Hamzah  , Mohd Afzanizam Mohd Rosli  , Ioan Pop
Published: May 2024

This work highlights the thermal progress and flow characteristics of the various hybrid nanofluids (graphene-alumina/water and copper-alumina/water) flow over a stretching/shrinking sheet with heat generation and suction effects using numerical approach. This study is important in identifying the nanofluids and physical parameters which beneficial in the increment of the flow and thermal progresses. The control model (partial differential equations) is established based on the boundary layer assumptions and then transformed into a set of ordinary (similar) differential equations. A numerical solver in the MATLAB software called the bvp4c solver is used to compute the solutions by first transforming the reduced ODEs. There is an increase in velocity profile and a decrease in thermal rate with the increased suction parameter. It is observed that between the two hybrid nanofluids, the Cu-Al2O3/H2O hybrid nanofluid has a larger thermal rate and skin friction coefficient compared to the Graphene-Al2O3/H2O, which makes Cu-Al2O3/H2O a good option for the industrial cooling processes.
LRe Trans Model of Interface Visual Interaction Suitable for Preschooler Robots
Authors: Yang Xiaoqing , Yong Jonathan Chung Ee , Li Bo
Published: May 2024

Traditional contact and non-contact methods for estimating visual interaction forces and recognizing behavior have significant drawbacks with regards to biocompatibility, sensor size, the fragility of materials, and balancing algorithm accuracy and speed. To address these limitations, the study suggests a lightweight, regularized transformer-based visual interaction behavior recognition method. The method contains three important parts: image input and slice preprocessing, global semantic representation based on deep lightweight vision Transformer, and regularized interaction behavior recognition. At the same time, the new model is able to collect and analyze preschool children's image data through a dynamic window, and then realize the visual interaction process for preschool children through machine interaction. Experiments shows that the new method achieves 97.6% accuracy and 97.5% F1 score for interaction behavior recognition on a large-scale robot interaction dataset, with a single average inference time of only 0.18 seconds. The experiment yields significant results indicating that the LRe Trans-based method for recognizing visual interaction behavior holds advantages for the specific problem of robots interacting with preschoolers. The method not only provides valuable insights into the theoretical basis of this field but also offers potential applications for future research.
Examining the Benefits and Drawbacks of the Sand Dam Construction in Cadadley Riverbed
Authors: Jama Hussein Mohamed
Published: May 2024

In dry land areas like Somaliland shortage of water is very common. People have to travel for long distances to find water, and after it rains, most of the water is lost to evaporation or surface run off. The challenge in arid and semi-arid climates is how to harvest rainwater; most of villages in Somaliland need how to harvest rainwater and running water through their dry valleys. This study aimed to evaluate the positive and negative impact of existing water infrastructure (sand dams) in dry rivers in Cadadley district and to compare these with appraisal of sites yet to be developed that can be constructed sand dams in Cadadley region Somaliland. This study employs a method known as probing, which involves hammering a rod into the middle of the riverbed until it makes contact with the floor beneath the sand, producing a dull sound. The level of the sand is then marked on the rod, which is subsequently pulled straight up without any twisting. The crucial factor in determining the location for constructing a sand storage dam is the depth of the basement or impermeable layer relative to the riverbed surface. Ideally, the dam should be built where the impermeable layer is closest to the riverbed surface. The result shows that sand dam need reconstruction because of short of their spill ways and there is poor choice location.
Antagonistic States in Multilateral Forums: India and Pakistan in SAARC and SCO
Authors: Waggy Mohmad Maqbool , Hassan Khalid Wasim
Published: May 2024

Bu araştırma makalesi Hindistan ve Pakistan'ın Güney Asya Bölgesel İşbirliği Birliği (SAARC) ve Şanghay İşbirliği Örgütü (ŞİÖ) gibi iki bölgesel örgüt içerisinde sergiledikleri farklı davranışları incelemektedir. Uzun süredir devam eden düşmanlıklarına rağmen, her iki ülke de ŞİÖ zirvelerine aktif olarak katılırken, 2019'dan bu yana SAARC içinde birbirleriyle etkileşime girme konusunda isteksizlik göstermektedir. Bu farklı davranışın altında yatan nedenleri araştırarak, ŞİÖ'nün Hint-Pak rekabeti bağlamındaki etkilerini analiz ediyoruz. Oyun teorisini, özellikle de mahkûm ikilemini kullanarak, işbirliği ve çatışma dinamiklerini inceliyoruz. Bu analiz sayesinde SAARC ve ŞİÖ içindeki çok taraflılığın kendine özgü işleyişini ortaya çıkararak Hindistan-Pakistan ilişkilerinin bu bölgesel kurumlar üzerindeki etkisine dair içgörü sağlıyoruz. Bu çalışmanın bulguları, çok taraflı işbirliğini çevreleyen karmaşıklıkları ve rekabetin bölgesel dinamikleri şekillendirmede oynadığı önemli rolü daha iyi anlamamızı sağlamaktadır.
SUSTAINABLE BEHAVIORS AND PERSONALITY MODERATING THE STATUS GOAL AND PURCHASE INTENTION RELATIONSHIP OF LUXURY BRANDS
Authors: Vera-Martínez Jorge , Fuentes Humberto , Kolbe Diana
Published: May 2024

Luxury brands are related to two major mechanisms of social adaptation: value-expressive and social-adjustive. Researchers have established that these two functions are likely to influence customer purchase intention. Additionally, evidence suggests an interaction between sustainability beliefs and personality traits. Traditional, luxury brand purchasers are considered carefree of sustainability considerations. Therefore, a research gap exists regarding sustainable behaviors and personality issues in relation to luxury brands. Thus, building on a model of the effects of the value-expressive and social-adjustive functions of luxury brands on purchase intention, this study analyzes the effects of two types of moderating variables, namely, sustainable consumption (anthropocentrism, perceived self-efficacy, ecological behavior, conservatism, and egoism) and personality traits (conscientiousness, extraversion, openness, and neuroticism). Results of a structural equation modeling analysis with nested models, using a sample of 299 U.S. luxury car consumers, reveal that for the value-expressive and purchase intention relationship, only perceived self-efficacy shows a negative moderating effect. Meanwhile, for the relationship between social-adjustive and purchase intention, anthropocentrism, egoism, extraversion, and neuroticism demonstrate moderating effects. Thus, the variables here proposed primarily moderate the social-adjustive and purchase intention relationship. Therefore, luxury product firms pursuing a long-term sustainability agenda may benefit from strategies based on social-adjustive needs.
Validation of a Third Planet in the LHS 1678 System
Authors: Silverstein Michele L. , Barclay Thomas , Schlieder Joshua E. , Collins Karen A. , Schwarz Richard P. , Hord Benjamin J. , Rowe Jason F. , Kruse Ethan , Astudillo-Defru Nicola , Bonfils Xavier , Caldwell Douglas A. , Charbonneau David , Cloutier Ryan , Collins Kevin I. , Daylan Tansu , Fong William , Jenkins Jon M. , Kunimoto Michelle , McDermott Scott , Murgas Felipe , Palle Enric , Ricker George R. , Seager Sara , Shporer Avi , Tey Evan , Vanderspek Roland , Winn Joshua N.
Published: May 2024

The nearby LHS 1678 (TOI-696) system contains two confirmed planets and a wide-orbit, likely brown-dwarf companion, which orbit an M2 dwarf with a unique evolutionary history. The host star occupies a narrow “gap” in the Hertzsprung–Russell diagram lower main sequence, associated with the M dwarf fully convective boundary and long-term luminosity fluctuations. This system is one of only about a dozen M dwarf multiplanet systems to date that hosts an ultra-short-period planet (USP). Here we validate and characterize a third planet in the LHS 1678 system using TESS Cycle 1 and 3 data and a new ensemble of ground-based light curves. LHS 1678 d is a 0.98 ± 0.07 R
⊕ planet in a 4.97 day orbit, with an insolation flux of

9.1

−
0.8

+
0.9

S

⊕

. These properties place it near 4:3 mean motion resonance with LHS 1678 c and in company with LHS 1678 c in the Venus zone. LHS 1678 c and d are also twins in size and predicted mass, making them a powerful duo for comparative exoplanet studies. LHS 1678 d joins its siblings as another compelling candidate for atmospheric measurements with the JWST and mass measurements using high-precision radial velocity techniques. Additionally, USP LHS 1678 b breaks the “peas-in-a-pod” trend in this system although additional planets could fill in the “pod” beyond its orbit. LHS 1678's unique combination of system properties and their relative rarity among the ubiquity of compact multiplanet systems around M dwarfs makes the system a valuable benchmark for testing theories of planet formation and evolution.
Ages of “Singles” versus “Multis”: Predictions for Dynamical Sculpting over Gyr in the Kepler Sample
Authors: Lam Christopher , Ballard Sarah
Published: May 2024

The sample of host stars with multiple transiting planets has illuminated the orbital architectures of exoplanetary systems. These architectures may be shaped mostly by formation conditions, be continually sculpted by ongoing dynamical processes, or both. As more studies have placed planet occurrence within a galactic context, evidence has emerged for variable planet multiplicity over time. In this manuscript, we investigate the use of transit multiplicity as a tool to constrain longer-timescale (>1 Gyr) dynamical sculpting. First, with a suite of injection-and-recovery tests, we quantify sensitivity to sculpting laws across different regimes. We employ a forward modeling framework in which we generate synthetic planetary systems, according to a prescribed sculpting speed and timescale, around the FGK dwarfs studied by the Kepler Mission. Some sculpting scenarios are hypothetically detectable in the Kepler sample, while others can be disfavored from Kepler transit statistics alone. Second, we apply our analysis to reverse engineer the sculpting laws consistent with the true yield from Kepler. We confirm the present-day fraction of host stars containing dynamically cool “systems with tightly packed inner planets” is 4%–13%. A variety of Gyr-timescale sculpting laws successfully predict the transit multiplicity of the Kepler sample, but none of these laws succeed in also producing a detectable trend with transit multiplicity and stellar age. An improvement to measured stellar age precision may help uncover such a sculpting law, but nevertheless reflects limitations in transit multiplicity as an observable. Therefore, other phenomena, apart from Gyr-timescale dynamical sculpting, may be required to explain the Kepler yield.
Taming the TuRMoiL: The Temperature Dependence of Turbulence in Cloud–Wind Interactions
Authors: Abruzzo Matthew W. , Fielding Drummond B. , Bryan Greg L.
Published: May 2024

Turbulent radiative mixing layers play an important role in many astrophysical contexts where cool (≲104 K) clouds interact with hot flows (e.g., galactic winds, high-velocity clouds, infalling satellites in halos and clusters). The fate of these clouds (as well as many of their observable properties) is dictated by the competition between turbulence and radiative cooling; however, turbulence in these multiphase flows remains poorly understood. We have investigated the emergent turbulence arising in the interaction between clouds and supersonic winds in hydrodynamic enzo-e simulations. In order to obtain robust results, we employed multiple metrics to characterize the turbulent velocity, v
turb. We find four primary results when cooling is sufficient for cloud survival. First, v
turb manifests clear temperature dependence. Initially, v
turb roughly matches the scaling of sound speed on temperature. In gas hotter than the temperature where cooling peaks, this dependence weakens with time until v
turb is constant. Second, the relative velocity between the cloud and wind initially drives rapid growth of v
turb. As it drops (from entrainment), v
turb starts to decay before it stabilizes at roughly half its maximum. At late times, cooling flows appear to support turbulence. Third, the magnitude of v
turb scales with the ratio between the hot phase sound-crossing time and the minimum cooling time. Finally, we find tentative evidence for a length scale associated with resolving turbulence. Underresolving this scale may cause violent shattering and affect the cloud’s large-scale morphological properties.
Tidal Synchronization Trapping in Stars and Planets with Convective Envelopes
Authors: Dewberry Janosz W.
Published: May 2024

Tidal torques can alter the spins of tidally interacting stars and planets, usually over shorter timescales than the tidal damping of orbital separations or eccentricities. Simple tidal models predict that, in eccentric binary or planetary systems, rotation periods will evolve toward a “pseudosynchronous” ratio with the orbital period. However, this prediction does not account for “inertial” waves that are present in stars or gaseous planets with (i) convective envelopes and (ii) even very slow rotation. We demonstrate that tidal driving of inertial oscillations in eccentric systems generically produces a network of stable “synchronization traps” at ratios of orbital to rotation period that are simple to predict but can deviate significantly from pseudosynchronization. The mechanism underlying spin synchronization trapping is similar to tidal resonance locking, involving a balance between torques that is maintained automatically by the scaling of inertial mode frequencies with the rotation rate. In contrast with many resonance locking scenarios, however, the torque balance required for synchronization trapping need not drive mode amplitudes to nonlinearity. Synchronization traps may provide an explanation for low-mass stars and hot Jupiters with observed rotation rates that deviate from pseudosynchronous or synchronous expectations.
Shock and Cosmic-Ray Chemistry Associated with the Supernova Remnant W28
Authors: Tu 涂 Tian-yu 天宇 , Chen 陈 Yang 阳 , Zhou 周 Ping 平 , Safi-Harb Samar , Liu 刘 Qian-Cheng 前程
Published: May 2024

Supernova remnants (SNRs) exert a strong influence on the physics and chemistry of the nearby molecular clouds through shock waves and the cosmic rays (CRs) they accelerate. To investigate the SNR–cloud interaction in the prototype interacting SNR W28 (G6.4−0.1), we present new observations of the HCO+,

HCN

, and HNC J = 1–0 lines, supplemented by archival data of CO isotopes, N2H+ and H13CO+. We compare the spatial distribution and spectral line profiles of different molecular species. Using the local thermodynamic equilibrium assumption, we obtain an abundance ratio of N(HCO+)/N(CO) ∼10−4 in the northeastern shocked cloud, which is higher by an order of magnitude than the values in unshocked clouds. This can be accounted for by the chemistry jointly induced by shock and CRs, with the physical parameters previously obtained from observations: preshock density n
H ∼ 2 × 105 cm−3, CR ionization rate ζ = 2.5 × 10−15 s−1, and shock velocity V
s = 15–20 km s−1. Toward a point outside the northeastern boundary of W28 with a known high CR ionization rate, we estimate the abundance ratio N(HCO+)/N(N2H+) ≈ 0.6–3.3, which can be reproduced by a chemical simulation if a high density n
H ∼ 2 × 105 cm−3 is adopted.
SALT-RSS Multiobject Spectroscopic Data Reduction to Reveal Physical Properties of [O ii]-emitting Galaxies from HETDEX and ODIN
Authors: Kharchilava George V. , Gawiser Eric , Herrera Danisbel , Firestone Nicole , Ciardullo Robin , Gronwall Caryl , Lee Kyoung-Soo , Ramakrishnan Vandana , Valdes Francisco , Yang Yujin
Published: May 2024

Line flux ratios from [O ii] doublets can probe electron densities in the interstellar medium of galaxies. We employ the Southern African Large Telescope’s (SALT) Robert Stobie Spectrograph (RSS), which provides sufficient resolution (R ∼ 3000) to split the [O ii] doublets, to target galaxies from Hobby-Eberly Telescope Dark Energy Experiment and One-hundred-deg2 DECam Imaging in Narrowbands with emission line fluxes of at least 2 × 10−16 erg cm−2 s−1. Reduction is carried out using RSSMOSPipeline to reduce SALT-RSS data through wavelength calibration. Despite SALT-RSS being known for its difficulty to flux calibrate, we present spectra that have been flux calibrated using alignment stars with Sloan Digital Sky Survey spectra as standards. We combine multiple spectroscopic settings to obtain full 2D spectra across a wavelength range of 3500–9500 Å. A 1D spectrum can then be extracted to calculate flux ratios and line widths, revealing important physical properties of these bright [O ii]-emitters.
La réalité augmentée peut-elle remplacer l’essai physique pour l’achat de biens d’expérience en ligne ?
Authors: Loupiac Philippine , Le Nagard Emmanuelle , Herbinet Victoire
Published: May 2024

• Objectifs Cette recherche ambitionne de comprendre si, lors d’un achat en ligne, un essai virtuel en réalité augmentée est susceptible de remplacer un essai physique, en aidant à prendre une décision d’achat ou de non-achat. Nous nous focalisons sur les biens d’expérience, c’est-à-dire ceux qui nécessitent d’être utilisés pour être évalués totalement. • Méthodologie Nous menons une première étude qualitative (17 entretiens) puis une seconde étude quantitative (N=349) permettant de construire une typologie. • Résultats La première étude met en évidence un manque de confiance vis-à-vis de la réalité augmentée. La seconde étude permet de dresser une typologie de trois profils de consommateurs – les pro-online, les pro-offline et les pragmatiques – et de montrer que l’essai virtuel en RA n’est suffisant pour prendre une décision que pour le premier profil. • Implications managériales Cette recherche montre que, pour les biens d’expérience, la RA ne peut pas satisfaire tous les consommateurs. Les marques sont encouragées à combiner plusieurs solutions de remplacement de l’essai physique pour toucher l’ensemble de leur cible. • Originalité L’originalité de ce travail repose sur deux éléments : d’une part, l’étude de l’utilité de l’essai en réalité augmentée pour la catégorie spécifique des biens d’expérience ; d’autre part, la mobilisation d’une méthodologie mixte.
Mettre en œuvre une pédagogie alternative : la mobilisation des acteurs dans le cas d’un apprentissage expérientiel et par projet du dispositif TIPI
Authors: Meyer Claudie , Catuli Gilles , Henni Asmaa
Published: May 2024

En prise avec la réalité complexe des organisations et la recherche de sens, la formation expérimentale TIPI est analysée à travers une grille écosystémique. L’écosystème de formation révèle l’augmentation de la diversité des acteurs ainsi que de nouvelles façons d’interagir : plus d’interactions partenariales pour définir les objectifs, plus de co-construction dans la didactique et plus de coordination pour réguler le dispositif. La question de la capacité des acteurs à endosser de nouveaux rôles est posée.
Vieillissement cognitif : de la plainte à la prise en charge
Authors: Ankri Joël
Published: May 2024

Pharmakon , du grec ancien, est à l’origine des mots « pharmacie », « pharmacologie » et a plusieurs sens : celui de remède, de poison et aussi de bouc émissaire. Ces trois éléments se retrouvent tout particulièrement quand nous étudions les médicaments dans les populations âgées. Cette population est en effet forte consommatrice de médicaments (du fait des polypathologies chroniques fréquentes à ces âges) qui sont responsables d’une iatrogénie importante dont nous verrons les mécanismes. Bien utilisés, ils sont des remèdes, mais ils peuvent devenir des poisons et contribuer à une médiatisation négative préjudiciable pour les patients (perte de chance d’être traité). Parmi les effets indésirables, il paraît important pour tout psychologue de connaître leur incidence sur le fonctionnement cognitif.
Vieillissement cognitif : de la plainte à la prise en charge
Authors: Baclet-Roussel Caroline , Gély-Nargeot Marie-Christine
Published: May 2024

Processus dynamique, le vieillissement est le fruit de multiples variables confondantes qui interagissent entre elles. Certaines, non cognitives, peuvent affecter la cognition, tels les facteurs psychosociaux. Cette fiche se propose de faire le point sur deux d’entre eux : la consommation de substances psychoactives (à l’exception des psychotropes) et les stéréotypes négatifs sur la vieillesse. L’objectif est ici d’alerter les neuropsychologues sur la nécessité d’une approche intégrative du sujet pour le décrypter correctement et cibler des pistes de prévention.
Vieillissement cognitif : de la plainte à la prise en charge
Authors: Truong-Minh Emmanuelle
Published: May 2024

Le bilan neuropsychologique est un acte clinique, avant d’être technique. L’entretien d’ouverture, l’accordage à une problématique travaillée avec le patient et l’entretien de clôture sont des points essentiels du bilan neuropsychologique. Alliés à un cadre sécurisant, à des connaissances précises et une passation rigoureuse, ils assurent la pertinence des conclusions et un acte qui fera sens pour le patient lui-même.
Vieillissement cognitif : de la plainte à la prise en charge
Authors: Morand Alexandrine , Eustache Francis , Desgranges Béatrice
Published: May 2024

Les plaintes de mémoire sont fréquentes chez les personnes âgées. L’évaluation de la mémoire lors d’un bilan neuropsychologique est indispensable pour différencier le vieillissement normal du pathologique. La mémoire épisodique et la mémoire de travail sont les systèmes les plus perturbés au cours du vieillissement normal, tandis que les pathologies neurodégénératives corticales affectent de façon plus importante ces systèmes ainsi que la mémoire sémantique.
La politique de sanctions de la Chine et ses conséquences
Authors: A. K.
Published: May 2024

La Chine s’est progressivement dotée d’une politique propre en matière de sanctions, qui est une conséquence de sa montée en puissance économique et d’un durcissement des relations sino-américaines, illustré par la guerre commerciale ayant opposé Washington et Pékin. Cette nouvelle approche a requis une refonte du dispo sitif juridique et institutionnel chinois afin de donner à Pékin une plus grande flexibilité dans le maniement des sanctions. Les sanctions chinoises sont fondées sur la défense d’intérêts dits « de souveraineté ». Si leur usage a traditionnellement été réactif et défensif, l’adoption d’un dispositif juridique plus élaboré a permis à la Chine d’utiliser de façon croissante les sanctions comme un levier de sa politique étrangère, traduisant un changement dont les conséquences sont importantes.
Therapeutic Reading of Emotional Conceptual Metaphors
Authors: Piskač Davor
Published: May 2024

The purpose of this paper is to explore the potential for therapeutic reading through the interdisciplinary integration of the cultural system, namely literature, with the psychological system. Therapeutic reading is examined from the standpoint of cognitive science, primarily through the lens of cognitive narratology and, on the other hand, cognitive therapy as a psychological method. This interdisciplinary approach is feasible because both referenced systems employ the term metaphor, or more specifically, conceptual metaphor, in nearly synonymous ways. Within the realm of conceptual metaphor, a special focus is placed on so-called emotional conceptual metaphors and an examination of their functional applications. Notably, emotional conceptual metaphors as distinct entities do not exist; however, there are certain types of conceptual metaphors that facilitate the description of emotion and its experience. These metaphors could potentially be regarded as a symbolically generalized medium of communication capable of traversing the boundaries between the domains of literature and psychology, thus enabling the translation of the full spectrum of emotions between these two systems.
Travma in individuacija v romanu Florjana Lipuša Boštjanov let
Authors: Matajc Vanesa
Published: May 2024

Leta 2003 je pisatelj Florjan Lipuš objavil roman Boštjanov let. Zgodba romana nastaja okrog protagonistovega razlamljajočega dogodka v njegovem otroštvu v času II. svetovne vojne v slovensko-manjšinski skupnosti na avstrijskem Koroškem: žandarmerija v službi nacističnega režima iz otrokovega doma odpelje mater, ki se ne vrne. Dogodek je prikazan kot travmatično izkustvo, ki ga otrokovo doživljanje ne more celovito vgraditi v zavest. Zgolj groza in nemožnost otroka, da bi razumel pomen zanj razlamljajočega dogodka, deluje kot potlačitev v »mehanizmu« travme. V Lipuševem romanu se otroško doživljanje groze in stiske ob izgubi in postopno prebolevanje travme predstavlja, poimenuje in strukturira na izviren in hkrati tematsko posebej sugestiven način: skozi variabilne ponovitve predvsem enega simbolnega motiva, ki se nanaša na bitje, ki je v slovenskem izročilu slovanske mitologije poimenovano »škopnik«. Članek si prizadeva prepoznavati kognitivno moč književnosti v literarno-pripovednih strukturacijah skupnih človeških temeljnih izkustev bivanja. Branje romana Boštjanov let jih poveže z Jungovo psihoanalizo in njenim konceptom arhetipov.
Bolezen v sodobnem slovenskem romanu
Authors: Zupan Sosič Alojzija
Published: May 2024

Za ubesedovanje bolezni v književnosti je pomembna druga polovica prejšnjega stoletja, saj se je bolezni – poleg tradicionalne disfunkcionalnosti – pripisala tudi družbena pogojenost. Če je neliterarna pripoved razumljena kot medicinsko, filozofsko ali celo neznanstveno oziroma laično poročilo o bolezni, je literarna pripoved znatno bolj odprta v svojih določilih in razvejana na različne vrste in žanre. Temeljna razlika med njima je tudi način obravnave travme in stigme: literarna obravnava obeh temelji na več lastnostih, med katerimi sem se posvetila napetosti ter estetizaciji in avtorefleksiji. Povezanost dveh travm, bolezenske in družbene, je najbolj razvidna v romanih Hiša Marije Pomočnice Ivana Cankarja in Da me je strah? Maruše Krese. Kljub različnim podobam in vlogam bolezni je obema romanoma skupna etična motivacija: medtem ko Cankarjev roman obsoja vampirski kapitalizem, se Krese ukvarja z nasilno prekvalifikacijo zgodovine oziroma nepravičnim izničevanjem partizanskih zaslug. Povezava etične odgovornosti in bolezni na empatičen način je podobna tudi v romanih Sonce zahaja v Celju Eve Kovač in Igranje Stanke Hrastelj, razlikujeta pa se po tem, da prvi roman literarizira dve odvisnosti, drugi pa se posveča predvsem stigmatizaciji shizofrenije. Polisemičnost bolezni v vseh štirih obravnavanih romanih ponuja možnosti za bralčevo identifikacijo, še več pa za literarno empatijo, s pomočjo katere si »zgradimo« temelje za sprejemanje bolezni in s tem tudi raznolikosti v svetu.
Kako je nastala ruska nacionalna ideja: ekspanzionistične vojne in francosko razsvetljenstvo
Authors: Stroev Alexandre
Published: May 2024

V 18. stoletju je Ruski imperij videl Rim kot model, ki ga je treba posnemati, Osmansko cesarstvo pa kot sovražnika, ki ga je treba uničiti. Francoski in francosko govoreči avtorji, kot so Voltaire, Friedrich Melchior Grimm, Chevalier d’Éon, Jean Sylvain Bailly, Volney, Prince de Ligne, Jean Potocki in drugi, so v svojih delih in v korespondenci s Katarino II. prikazovali Rusijo kot dedinjo antične civilizacije, ki naj bi oživila Grčijo. Vojne proti Turčiji so spodbujale politično in vojaško mitologijo, ki se je razvila v Rusiji in Evropi. Uradni cilj je bila osvoboditev pravoslavnih ljudstev izpod muslimanskega jarma, tj. napad na Krim, Moldavijo in Vlaško ter grške otoke. Nadaljnji cilji so bili zavzetje Istanbula, osvojitev Sirije in Palestine, krepitev ruske prisotnosti na Kavkazu in napad na Perzijo. Nazadnje naj bi si Poljsko razdelili s Prusijo in Avstrijo ter priključili ukrajinska in beloruska ozemlja. Teritorialna širitev in ustanovitev novih mest na jugu države sta Rusom omogočila, da so se predstavili kot potomci Skitov, Sarmatov in Amazonk ter kot zakoniti dediči kijevskih knezov, ki so napadli Konstantinopel in uvedli pravoslavno vero. Francoski glasniki Katarine II. in ruskih zmag so razglasili državo za zibelko ljudstev, ki so osvojila in civilizirala Evropo. Takšna mitologija je spodbujala vojne med Rusijo in Turčijo v 19. stoletju in žal spodbuja tudi sedanjo vojno.
Design of an EMG Signal Generator Based on Random Firing Patterns
Authors: León Gabriela , López Emely , López Hans , Hernandez Cesar
Published: May 2024

Electromyographic (EMG) signals exhibit complex interference patterns that comprise several single motor unit action potentials (SMUAPs). Evidence of a model that can generate EMG signals and considers intrinsic characteristics, such as long-range dependence (LRD) or shortrange dependence (SRD), or that supports the study of pathology-related signals is lacking. Therefore, the present study aimed to develop an EMG signal generator based on SRD or LRD derived from firing patterns. We used a dynamic model to parameterize up to 15 SMUAP waveforms of real EMG signals extracted from a database. Then, we used relative appearance rates for some signals based on the number of SMUAPs to generate the latter randomly. Furthermore, we complemented our model by generating a random firing pattern. The synthetic reconstruction of the signals indicated a displacement compared with their respective firing patterns, with the highest error rate being 4.1%. The model of the EMG signal generator in its current state could be useful for a specialist who intends to study the behavior of the signals, starting with the exploration of synthetic signals and then proceeding to the real signals.
Delay of Transmitted Data in the Remote Patient Monitoring System through AMQP and CoAP
Authors: Tsvetanov Filip , Pandurski Martin
Published: May 2024

Remote Patient Monitoring (RPM) is a healthcare solution that uses technology to monitor patients outside conventional healthcare settings. It is especially useful for people with chronic conditions or needing regular monitoring. One of the main reasons for the increase in the number of deaths each year is the increase in cardiovascular diseases, including hypertension. Online blood pressure monitoring offers many advantages but also potential challenges. This work reviews the key communication technologies and research challenges in the real-time transmission of measured blood pressure data. Delay in these systems is not tolerated as it involves human lives. To conduct the experimental studies, a prototype of an experimental intelligent system was created to study the delay and processor load of the RPI4 gateway. The measured blood pressure data is sent to the Things Board cloud using the AMQP and CoAP protocols. The experimental results are particularly useful for RPM system designers. The results of this research facilitate an informed decision on the choice of protocol that transmits the data from the gateway to the cloud in the process of designing remote patient monitoring systems.
Machine Learning Classification Algorithms for Traffic Stops—A Comparative Study
Authors: Hoti Mërgim H. , Misini Elvir , Lajçi Uran , Ahmedi Lule
Published: May 2024

The application of machine learning algorithms across various fields is gaining momentum, and the results increasingly emphasize the need for further testing and implementation. This is driven by the potential to streamline and expedite numerous processes. In this paper, we have employed five algorithms: KNN, Decision Tree, Random Forest, Logistic Regression, and Naive Bayes, and these algorithms have been tested in three large datasets. On average, their performance ranges from a minimum of 80% to a maximum of 90%. Data preprocessing has been completed, and concurrently, we have implemented the SMOTE algorithm to address the challenge of unbalanced data in this research. Simultaneously, the Naïve Bayes algorithm yields the most favorable results of Accuracy, Precision, Recall, and F1 Score, for the “is_arrested” class. Furthermore, to assess the performance of each algorithm, we employed metrics including Accuracy, Precision, Recall, and F1 Score. These metrics allowed us to decide which algorithm achieved the most effective classification.
Large Scale “Flipped Classroom” Course Transformation
Authors: Kerrigan John
Published: May 2024

Higher education mathematics courses have a long-standing history of teaching using the lecture method. In response to students' struggles with this type of instruction, the researchers redesigned a large undergraduate mathematics course to include the flipped classroom method of instruction to improve students' learning outcomes. This chapter discusses the theoretical framework, design, and implementation of large-scale flipped classrooms. Quantitative findings from two implementations of this course are presented to justify design decisions and areas for future growth. Additional design considerations are discussed at the end of the chapter to give practitioners guidance on what to include in a flipped classroom design.
A Residency Model in STEM Teacher Education for Under-Served Communities
Authors: Ayieko Rachel A.
Published: May 2024

The recruitment and retention of STEM teachers for under-served schools has been challenging. Several foundations have partnered with teacher education programs to address the high turnover of STEM teachers in underserved schools. The author's institution hosted three cohorts of fellows sponsored by the Institute of Citizens and Scholars. This chapter provides a storied account of the preparation of the fellows. The account includes a description of the program, the challenges, and the successes we experienced. The author seeks to answer, “What factors promote the retention of beginning teachers to build resilience and resilience in teaching in the under-served schools?” COVID-19 forced us to consider the community partnerships needed for the beginning teachers. The selection of mentor teachers was necessary for the retention and resilience of the beginning teachers during this challenging time. Additionally, supporting the teachers during their first three years of teaching improved their understanding and appreciation of underserved schools.
College Enrollment Differences
Authors: Karns Laura Marie , Zambak Vecihi Serbay
Published: May 2024

High school students select from a variety of post-secondary plans including higher education, employment, enrollment in the armed forces, and gap years. Educational attainment (e.g., a high school diploma, or college degree) provides career opportunities for advancement into leadership positions and benefits such as health insurance and retirement. A college degree has the potential to improve an individual's financial earnings, mental health, and life expectancy. The purpose of this study is to examine the differences in college enrollment between students who graduated from Title I funded elementary schools and students who attended non-Title I funded elementary schools. A quantitative causal-comparative study was conducted to investigate the influence that Title I has on college enrollment. This study analyzed postsecondary data of high school graduates over the past 5 years. Postsecondary data of high school graduates who attended non-Title I funded elementary schools was compared with high school graduates who attended Title I funded elementary schools.
Healthy Staffroom, Healthy Classroom
Authors: Smith William T.
Published: May 2024

Huge numbers of school staff members are expressing that they are feeling trapped and unsupported in their jobs, educator pipelines from colleges and universities are drying up, and extraordinary numbers of existing staff are indicating that they plan to leave the profession within the next five years. Educator wellness is no longer something that can be left to chance, dismissed as each staff member's personal business and responsibility. School leaders must be prepared to address staff wellness immediately if they hope to retain current staff and recruit future staff in an increasingly competitive job market. Educator wellness must be prioritized, with clear goals, allocated funds, and purposeful discussions leading to consequential outcomes. Using examples from a four-year-old Healthy Staffroom, Healthy Classroom staff wellness initiative, this chapter makes the case for staff wellness programs and provides a road map to educators and school leaders eager to do something to help improve their staff's well-being.
Importance of Implementing Social Emotional Learning (SEL) Programs Within Middle School Settings
Authors: Perret Antonio P.
Published: May 2024

The chapter is written from a practitioner point of view for field use. The origin and definition of social emotional learning (SEL) will be outlined, and research discussed about its effectiveness. Learning theory support for SEL and its high-level effectiveness on student growth will be used to support its significance. Following is an exploration of issues, controversies, and problems for why SEL is such a necessity for students, as well as complications associated with SEL program implementation. Numerous SEL programs for middle school use will be featured. The chapter's author is a classroom teacher. Being written by a classroom teacher who currently teaches and uses programs, the author focuses on the uses for an SEL program, the benefits for middle school students, and suggestions. The references focus on data from within classrooms and knowledge about a child's developmental needs. This will help current administrators and teachers understand why it is so crucial to integrate SEL into the classroom as an additional curricular resource in order to help students achieve.
Inclusivity in Leadership
Authors: Jablonski Lindsay
Published: May 2024

In the pursuit of more equitable schools, a critical examination of the purpose and methods employed, especially in leadership roles, becomes imperative for both students and staff. Educational institutions are increasingly under scrutiny for their efforts to establish leadership teams that genuinely mirror the diverse student populations they serve. This chapter delves into a comprehensive exploration of the historical and contemporary challenges faced by districts striving to foster gender-inclusive leadership, advocating for a more inclusive and representative educational landscape.