Miracle-dz/UniFAR-FTUs huggingface dataset:
Perceptions, Motivations, and Empowerment Strategies of Midwives in Rural and Remote Areas of Northern Morocco

The shortage of midwives is a problem in rural and remote areas. This is mainly the consequence of job insecurity and difficult living conditions. The present study aimed to identify and analyse the perceptions and motivations of midwives in rural and remote areas of northern Morocco on the quality of their working life and the motivational factors and empowerment strategies they use to maintain and develop their work. It is a qualitative study that follows Van Manen’s hermeneutic phenomenology approach. Three focus groups and in-depth interviews were conducted with 15 midwives from rural and remote areas. The results indicate that midwives in rural and remote areas have a negative perception of the quality of the work and their personal life because of the scarcity of basic resources, unfavourable working conditions, and the personal sacrifices they have to make to support themselves. However, some factors favour their efforts. Therefore, there is a need to promote intersectoral policies that focus on improving material and human resources, as well as the working and personal conditions of midwives and the factors that support and empower them.
Cooperative Resource Allocation for Computation-Intensive IIoT Applications in Aerial Computing

Unmanned aerial vehicles (UAVs) will be a vital part of the massive Industrial Internet of Things (IIoT) in the 5G and 6G paradigms. The UAVs are required to collaborate with each other to deal with some computation-intensive IIoT applications in an autonomous UAV system. However, due to the limited processing capacity of UAVs, they are occasionally unable to handle certain tasks adequately (e.g., crowdsensing). Therefore, it is an important issue to realize efficient offloading of these computation-intensive IIoT applications. In this article, we first partition the computation-intensive IIoT application into a directed acyclic graph with multiple collaborative tasks. Then, we establish a joint optimization problem based on the models of the processor resources and energy consumption for the task offloading scheme. Third, we propose a cooperative resource allocation approach to optimize the joint optimization problem under the constraints of resource and communication latency, and then can migrate more computation-intensive tasks to the edge clouds. Finally, we build an aerial computing simulation system and make a comparative evaluation and analysis of our proposed cooperative resource allocation approach in terms of effectiveness and performance. The experimental results show that our proposed approach performs better than other related approaches.
The spreading fronts in a mutualistic model with delay

This paper is concerned with a system of semilinear parabolic equations with two free boundaries describing the spreading fronts of the invasive species in a mutualistic ecological model. The local existence and uniqueness of a classical solution are obtained and the asymptotic behavior of the free boundary problem is studied. Our results indicate that two free boundaries tend monotonically to finite or infinite limits at the same time, and the free boundary problem admits a global slow solution with unbounded free boundaries if the intra-specific competitions are strong, while if the intra-specific competitions are weak, there exist the blowup solution and global fast solution.
Magnetic fields around black holes

Mutual interaction between electromagnetic and gravitational fields can be treated in the framework of the general theory of relativity. This poses a difficult problem but different approximations can be introduced in order to grasp interesting effects and to describe mechanisms which govern astronomical objects. The electromagnetic field near a rotating black hole is explored here. By employing an analytic solution for the weak electromagnetic field in vacuum, we plot the surfaces of constant flux and we show how the field is dragged around the black hole by purely geometrical effects of the strong gravitational field. We visualize the complicated structure of magnetic lines and we also mention possible astrophysical applications of more realistic situations involving the presence of plasma. The entangled and twisted field lines result in reconnection processes which accelerate the particles injected into the vicinity of the black hole. Such acceleration mechanisms of electromagnetic origin are considered as a possible source of high-speed plasma jets emerging from numerous nuclei of galaxies where black holes reside.
RELATION BETWEEN PUBLIC SPACE AND SKYSCRAPERS – THE CASE OF WARSAW

The paper is devoted to the problem of the relationship between public space and high-rise buildings implemented in Warsaw in the years 1989-2022. The location of twenty-three high-rise buildings with a minimum height of one hundred meters was examined in terms of their role as basic elements of the city image and urban composition, according to the theory of K. Lynch and K. Wejchert, multi-functionality of the space available in the public space in the examined buildings, number of users objects, parameters of the nearest neighboring public space - its area and width, and the visibility of objects from the public space. Research shows that the high-rise buildings located in Warsaw are located next to the public space that does not correspond to their scale and the generated traffic in the public space. Most of the buildings are located at streets or traffic junctions, only two buildings are located at the squares, and one at the closure of the streets. It is not possible to distinguish a coherent planning strategy related to the location of such facilities in Warsaw.
Angular projections of fractal sets

We discuss various questions which arise when one considers the central projection of three-dimensional fractal sets (galaxy catalogs) onto the celestial globe. The issues are related to how fractal such projections look. First we show that the lacunarity in the projection can be arbitrarily small. Further characteristics of the projected set—in particular scaling—depend sensitively on how the apparent sizes of galaxies are taken into account. Finally, we discuss the influence of the opacity of galaxies. Combining these ideas, seemingly contradictory statements about lacunarity and apparent projections can be reconciled.
Stylistic Variation as Manifest in the Informational Style of Intonation (On the Basis of English and Latvian TV Broadcasts)

Language variation can be observed on all linguistic levels. Stylistic variation affects not only the segmental but also the suprasegmental level of speech, including intonation, stress, rhythm, tempo and voice timbre. Different speech situations require appropriate intonation styles: systems of interconnected intonational means used in a definite social setting to achieve some particular aim of communication.The article looks into some features of the informational style of intonation in English in contrast to Latvian. For the analysis excerpts of a news broadcast from the Sky News, BBC World and LNT were chosen as presented by professional announcers. Auditive analysis provides data on voice timbre, logical division of speech, style-marking prosodic features and the prominence of semantic centres. The results of the present analysis of the style of intonation in English in comparison with the one undertaken in 1991 reveal that the basic features remain relatively stable. A slight difference in the voice timbre of contemporary announcers has been observed: occasionally it bears traits of emotional colouring. The division of the text basically corresponds to grammatical constructions; the pauses are of variable length. The loudness of speech is normal. The English announcers use a relatively wide voice range. The pace of speech is characterized as moderate with a slow-down on prominent parts of the text. Informational style characteristics of English include also a number of high falls and wide falls that create the impression of emphasis on semantic centres. The basic distinctions of the style in Latvian, in contrast to English, include a generally lower pitch level, a narrower range of high falls, frequent use of mid rises and an occasional high rise that is a feature of colloquial speech. The falling tone in non-final tone units, although less common than in English, is an efficient means of creating emphasis.
Ferromagnetism in oriented graphite samples

We have studied the magnetization of various well characterized samples of highly oriented pyrolitic graphite (HOPG), Kish graphite, and natural graphite to investigate the recently reported ferromagneticlike signal and its possible relation to ferromagnetic impurities. The magnetization results obtained for HOPG samples for applied fields parallel to the graphene layers---to minimize the diamagnetic background---show no correlation with the magnetic impurity concentration. Our overall results suggest an intrinsic origin for the ferromagnetism found in graphite. We discuss possible origins of the ferromagnetic signal.
3-point temperature anisotropies in WMAP: Limits on CMB non-Gaussianities and non-linearities

2 amplitudes. Strongly non-Gaussian models are generically expected to show d3 > 1 or q3 > 10 3d3. Unfortunately, this is comparable to the cosmic variance on large angular scales. For Gaussian primordial models, q3 gives a direct measure of the non-linear corrections to temperature anisotropies in the sky: δ = δL + fNLT (δ 2 L− < δ 2 L >) with fNLT = q3/2 for the leading order term in w 2 . We find good agreement with the Gaussian hypothesis d3 ∼ 0 within the cosmic variance of ΛCDM simulations (with or without a low quadrupole). The strongest constraints on q3 come from scales smaller than 1 degree. We find q3 = 19± 141 for (pseudo) collapsed configurations and an average of q3 = 336±218 for non-collapsed triangles. The corresponding nonlinear coupling parameter, fNL, for curvature perturbations Φ, in the Sachs-Wolfe (SW) regime is: f NL = q3/6, while on degree scales, the extra power in acoustic oscillations produces fNL ∼ q3/30 in the ΛCDM model. Errors are dominated by cosmic variance, but for the first time they begin to be small enough to constrain the leading order non-linear effects with coupling of order unity.
Interaction of a slender vortex with a rigid sphere: Dynamics and far-field sound

Interactions between a slender vortex filament and a stationary rigid sphere are analyzed using a vortex element scheme which tracks the motion of the filament centerline. The filament velocity is expressed as the sum of a self-induced velocity and potential velocity due to the presence of the sphere. The self-induced velocity is estimated numerically using a line Biot–Savart integral which is carefully desingularized so as to reflect the correct asymptotic behavior of the core vorticity distribution under the influence of stretching and viscous diffusion. Meanwhile, the potential velocity is evaluated from a recently derived formula, which expresses it as a line integral along the image of the filament centerline in the sphere with regular weight functions. From the far-field behavior of an unsteady vortical flow outside a stationary sphere, formulas for the acoustic far field are obtained. It is shown that the interaction between the slender vortex filament and the sphere generates dipoles and quadrupol.
A Carbon Star Survey of the Local Group Dwarf Galaxies. II. Pegasus, DDO 210, and Tucana

We present the latest results of our ongoing four-filter photometric survey of C stars in Local Group dwarf irregular galaxies. Observations of the two low-luminosity dwarf irregular galaxies, Pegasus and DDO 210, revealed 40 and three C stars, respectively, assuming that the reddening of Pegasus is negligible. No C stars were identified in Tucana. Our observations permit the estimation of the color-magnitude diagram contamination by foreground M dwarfs thus yielding reliable C/M ratios. Our R and I photometry of the C stars cannot be used to solve the extinction controversy toward Pegasus. The three C stars in DDO 210 are quite bright when compared with C star populations in other dwarf galaxies. A larger, fainter population in that galaxy seems improbable, however. The statistics of C stars currently on hand for dwarf galaxies show a well-defined trend with the absolute magnitude of dwarf galaxies.
Phytosynthesis of Silver Nanoparticle (AgNPs) Using Aqueous Leaf Extract of Knoxia sumatrensis (Retz.) DC. and Their Multi-Potent Biological Activity: An Eco-Friendly Approach

Green synthesis of silver nanoparticles (AgNPs) has gained greater interest among chemists and researchers in this current scenario. The present research investigates the larvicidal and anti-proliferation activity of AgNPs derived from Knoxia sumatrensis aqueous leaf extract (K. sumatrensis-ALE) as a potential capping and reducing candidate. The synthesized AgNPs were characterized through-UV-spectra absorption peak at 425 nm. The XRD and FT-IR studied displayed the crystalline nature and presence of functional groups in prepared samples. FE-SEM showed the hexagonal shape of NPs with the size of 7.73 to 32.84 nm. The synthesized AgNPs displayed superior antioxidant and anti-proliferative activity (IC50 53.29 µg/mL) of breast cancer cell line (MCF-7). Additionally, larvicidal activity against mosquito vector Culex quinquefasciatus larvae delivered (LC50-0.40, mg/L, and LC90-15.83) significant mortality rate post treatment with synthesized AgNPs. Overall, the present research illustrates that the synthesized AgNPs have high biological potential and present a perfect contender in the pharmacological and mosquitocidal arena.
Explicit Symplectic Integrators of Molecular Dynamics Algorithms for Rigid-Body Molecules in the Canonical, Isothermal-Isobaric, and Related Ensembles

We propose explicit symplectic integrators of molecular dynamics (MD) algorithms for rigid-body molecules in the canonical and isothermal-isobaric ensembles. We also present a symplectic algorithm in the constant normal pressure and lateral surface area ensemble and that combined with the Parrinello-Rahman algorithm. Employing the symplectic integrators for MD algorithms, there is a conserved quantity which is close to Hamiltonian. Therefore, we can perform a MD simulation more stably than by conventional nonsymplectic algorithms. We applied this algorithm to a TIP3P pure water system at 300 K and compared the time evolution of the Hamiltonian with those by the nonsymplectic algorithms. We found that the Hamiltonian was conserved well by the symplectic algorithm even for a time step of 4 fs. This time step is longer than typical values of 0.5-2 fs which are used by the conventional nonsymplectic algorithms.
BRAF V600E Mutation in Ameloblastoma: A Systematic Review and Meta-Analysis

Simple Summary Ameloblastoma is a benign odontogenic tumour, and the patient always presents at a later stage when the tumour is already in an aggressive state. The finding of high mutation of BRAF V600E indicates the need to explore the molecular pathogenesis of ameloblastoma. However, there is inconsistent evidence regarding this mutation occurrence and its association with clinical information. This systematic review and meta-analysis aim to pool the overall mutation prevalence of BRAF V600E in reported ameloblastoma cases and to determine its association with patient demographic and clinicopathological features. This meta-analysis shows that BRAF V600E mutation has a high pooled prevalence of 70.49% in ameloblastoma. Furthermore, there was a significant meta-analysis association for those younger than 54 years old and in the mandible. Researchers could utilise these findings to improve the treatment option and find a possible new biomarker for the early detection of ameloblastoma. Abstract The discovery that ameloblastoma has a high mutation incidence of BRAF V600E may enable a better investigation of pathophysiology. However, there is inconsistent evidence regarding this mutation occurrence and its association with clinical information. This systematic review and meta-analysis aim to pool the overall mutation prevalence of BRAF V600E in reported ameloblastoma cases and to determine its association with patient demographic and clinicopathological features. Following the PRISMA guidelines, a comprehensive article search was conducted through four databases (Scopus, Google Scholar, PubMed, and Web of Science). Seventeen articles between 2014 and 2022 met the inclusion criteria with 833 ameloblastoma cases. For each included study, the significance of BRAF V600E on the outcome parameters was determined using odd ratios and 95% confidence intervals. Meta-analysis prevalence of BRAF V600E in ameloblastoma was 70.49%, and a significant meta-analysis association was reported for those younger than 54 years old and in the mandible. On the contrary, other factors, such as sex, histological variants, and recurrence, were insignificant. As a result of the significant outcome of BRAF V600E mutation in ameloblastoma pathogenesis, targeted therapy formulation can be developed with this handful of evidence.
MAGNUM survey: A MUSE-Chandra resolved view on ionized outflows and photoionization in the Seyfert galaxy NGC1365

Context. Ionized outflows, revealed by broad asymmetric wings of the [O III] λ5007 line, are commonly observed in active galactic nuclei (AGN) but the low intrinsic spatial resolution of the observations has generally prevented a detailed characterization of their properties. The MAGNUM survey aims at overcoming these limitations by focusing on the nearest AGN, including NGC 1365, a nearby Seyfert galaxy (D ∼ 17 Mpc), hosting a low-luminosity active nucleus (Lbol ∼ 2 × 1043 erg s−1). Aims. We want to obtain a detailed picture of the ionized gas in the central ∼5 kpc of NGC 1365 in terms of physical properties, kinematics, and ionization mechanisms. We also aim to characterize the warm ionized outflow as a function of distance from the nucleus and its relation with the nuclear X-ray wind. Methods. We employed optical integral-field spectroscopic observations from VLT/MUSE to investigate the warm ionized gas and Chandra ACIS-S X-ray data for the hot highly-ionized phase. We obtained flux, kinematic, and diagnostic maps of the optical emission lines, which we used to disentangle outflows from gravitational motions in the disk and measure the gas properties down to a spatial resolution of ∼70 pc. We then performed imaging spectroscopy on Chandra ACIS-S data guided by the matching with MUSE maps. Results. The [O III] emission mostly traces a kpc-scale biconical outflow ionized by the AGN having velocities up to ∼200 km s−1. Hα emission traces instead star formation in a circumnuclear ring and along the bar, where we detect non-circular streaming gas motions. Soft X-rays are predominantly due to thermal emission from the star-forming regions, but we manage to isolate the AGN photoionized component which nicely matches the [O III] emission. The mass outflow rate of the extended ionized outflow is similar to that of the nuclear X-ray wind and then decreases with radius, implying that the outflow either slows down or that the AGN activity has recently increased. However, the hard X-ray emission from the circumnuclear ring suggests that star formation might in principle contribute to the outflow. The integrated mass outflow rate, kinetic energy rate, and outflow velocity are broadly consistent with the typical relations observed in more luminous AGN.
Solid‐State Molecular Rectifier Based on Self‐Organized Metalloproteins

Recently, great attention has been paid to the possibility of implementing hybrid electronic devices exploiting the self-assembling properties of single molecules. Impressive progress has been done in this field by using organic molecules and macromolecules. However, the use of biomolecules is of great interest because of their larger size (few nanometers) and of their intrinsic functional properties. Here, we show that electron-transfer proteins, such as the blue copper protein azurin (Az), can be used to fabricate biomolecular electronic devices exploiting their intrinsic redox properties, self assembly capability and surface charge distribution. The device implementation follows a bottom-up approach in which the self assembled protein layer interconnects nanoscale electrodes fabricated by electron beam lithography, and leads to efficient rectifying behavior at room temperature.
Patient satisfaction with telemedicine in acute care setting: A systematic review

Background: Telemedicine has revolutionized health-care services with its unprecedented abilities to connect patients with health-care professional across the distances. Patient satisfaction is an important measure of the quality and effectiveness of health-care services. Aim: The goal of this systematic review is to investigate patient satisfaction with telemedicine in acute care setting. Methods and Results: Four sources of data were searched PubMed, Cumulative Index of Nursing and Allied Health Literature, Scopus, and Web of Science. We used the Preferred Reporting Items for Systematic Reviews and Meta-Analysis as our basis of organization. Our analysis has showed that acute telemedicine was effective in managing a broad spectrum of acute medical conditions while achieving high levels of patient satisfaction. Conclusion: Patient satisfaction is a complex product of expectations and experiences. Furthermore, it is an important indicator of the quality of the service. Despite the challenging nature of acute medicine, telemedicine services were successful in improving the quality of the service and achieving high levels of patient satisfaction. Relevance for Patients: Telemedicine is rapidly evolving as an essential component of our healthcare system. Implementing telemedicine in acute care is a relatively new concept and patient satisfaction in these settings needs to be evaluated.
Wireless Resources Cooperation of Assembled Small UAVs for Data Collections of IoT

Small unmanned air vehicles (UAVs) have many advantages, including low cost and flexible deployment. And they play an important role to collect the sensing data of Internet of Things (IoT). However, limited by the load capability, it is a big challenge for them to perform long-term, large range, or far distance tasks. In order to tackle these challenges, we propose to use assembly UAVs, in which we can jointly optimize the resource management, especially, the energy resource. The system model, energy cyclic cooperation, and one of the typical applications based on assembly UAVs are introduced. The energy cooperation problems are formulated and an in-air replenishing strategy (IA-RS) is proposed. Simulations show that the performances of the proposed IA-RS outperform those of the traditional on-ground replenishing strategy (OG-RS). The working time of task UAV (UAV-T) could reduce 8.3%–19.5%, and the freshness of the collected data and the collecting efficiency of the UAV-T can be improved. We also optimize the path of the replenishing UAVs (UAV-Rs). Simulations show that the proposed reinforcement learning (RL) algorithm has the best performances and acceptable complexity. Consequently, the efficiency of the IoT data collection task is improved by the proposed assembly UAVs.
There's more than one way to cancel a regularized Stokeslet.

The Green's functions of Stokes flow are widely used analytical and computational tools for microscale flows. We adapt a procedure from H.A. Lorentz for the method of images in Stokes flow to the regularized setting. Our solutions differ from those previously reported, a surprising result given the uniqueness theory for elliptic partial differential equations. The discrepancy originates in the fact that the two version are exact solutions of inhomogeneous Stokes systems with slightly different forcing on the right-hand sides. We compare the fluid flows produced by the two methods and conclude that the Lorentz versions may be advantageous in some settings.