Miracle-dz/UniFAR-FTUs huggingface dataset:
A review of polysaccharide based hydrogel as cell carrier in wound healing

Various types of wound treatment materials have been developed that influenced by numerous wound types and wound management using hydrogel has been explored and widely used before. Among current strategies of development of hydrogel is the one that can act as a cell carrier that is applicable for wound healing. Thus, this study is conducted for reviewing the synthesis and method approaches for various polysaccharide-based hydrogel as wound healing materials. In other hand, this study is concerning on properties of hydrogel and their biological role as cell carrier that can support wound healing process by reviewing studies that related to polysaccharide-based hydrogel as cell carrier. Various types of polysaccharide-based hydrogel such as alginate, chitosan and hyaluronic acid have been developed using different type of approaches for wound healing. They can capsulate various type of cells that and the formed polymers give an excellent support for the cells such as to be delivered to the host tissues as well as aiding angiogenesis to accelerate wound healing. The emerging polysaccharide-based hydrogel for wound carrier has a very promising criterion that can be polished further due to its favorable qualities in assisting wound healing mechanisms.
Pre-operative physiotherapy for elderly patients undergoing abdominal surgery

Background Elderly patients report a decrease in function and activities of daily living following abdominal surgery. The objectives of our pilot study were to determine the effects of a single pre-operative physiotherapy session consisting of education and exercise on clinical and physical function outcomes in elderly patients. Methods/design A single-blind pilot randomised controlled trial evaluated clinical and functional outcomes of elderly patients following surgery in a private hospital in Pretoria, South Africa. The outcomes included length of hospital stay (LOS), postoperative pulmonary complications (PPC), first mobilisation uptime, DeMorton Mobility Index (DEMMI), 6-minute walk test (6MWT), Lawton–Brody’s instrumental activities of daily living (IADL) and the Functional Comorbidity Index (FCI). Descriptive and inferential statistics were undertaken, and statistical significance was set at p ≤ 0.05. Discussion Twelve participants (n = 11 female [91.67%] and n = 1 [8.33%] male) with a mean age of 65.75 (±4.47) years were included. Most participants (n = 10, 83.33%) underwent lower abdominal laparotomy (n = 10, 83.33%). The median hospital LOS was n = 4 (IQR 3.25–4) days; walking distance at first mobilisation was 130 m (IQR (85–225), with intervention participants walking further (intervention: 177 m, IQR 100–242.50; control: 90, IQR 60 m – 245 m; p = 0.59). Recruitment was low, with only 10.95% referrals and 47.82% nonconsents. Conclusion A single physiotherapy session prior to surgery demonstrated a potential favourable change in elderly patients’ mobility postoperatively; however, further research is necessary. Clinical implication A once-off pre-operative physiotherapy session could enhance recovery in elderly patients. Trial registration Pan African Clinical Trial Registry, PACTR201809874713904, https://pactr.samrc. ac.za/TrialDisplay.aspx? TrialID=3593
Interaction of light with a single atom in the strong focusing regime

We consider the near-resonant interaction between a single atom and a focused light mode, where the single atom localized at the focus of a lens can scatter a significant fraction of light. Complementary to previous experiments on extinction and phase shift effects of a single atom, here we report on the measurement of coherently backscattered light. The strength of the observed effect suggests combining strong focusing with a cavity to further enhance the field at the location of the atom. This could make scaling up to a network of several atom + cavity nodes more realistic due to significant technical simplification of the atom–light interface. We consider theoretically a nearly concentric cavity, which has a strongly focused optical mode. Simple estimates show that in such a case one can expect a significant single photon Rabi frequency.
Structure and Magnetic Fields in the Precessing Jet System SS 433. I. Multifrequency Imaging from 1998

The Very Large Array has been used at five frequencies to study the structure and linear polarization of SS 433 on scales as small as ~0.1'' ≃ 500 AU . Each jet consists of a sharp, curving ridgeline at the leading edge, plus significant trailing off-jet emission, showing that they are enveloped by diffuse relativistic plasma. No kinematic model with constant jet speed fits our images on all scales, but they are consistent with variations in jet speed of around ±10% around the optical value. Our images show continuous jets with bright components occurring simultaneously in the two jets roughly every 35 days. When corrected for projection effects and Doppler boosting, the intensities of the two jets are intrinsically very similar. Fractional linear polarization up to 20% is present along the ridgelines, while the core is essentially unpolarized. The rotation measures are consistent with a foreground screen with RM ≃ + 110 rad m−2 plus a larger, asymmetrical contribution close to the core. The apparent magnetic fields in the jets are roughly aligned with the ridgelines in most but not all of each jet. The jet is more highly polarized between the components than in the components themselves, suggesting that the mechanism that creates them compresses a tangled part of the magnetic field into a partially ordered transverse layer. The off-jet emission is remarkably highly polarized, with m ≃ 50% in places, suggesting large-scale order of the magnetic field surrounding the jets. This polarized signal may confuse the determination of magnetic field orientations in the jets themselves. However, the images are consistent with a jet magnetic field that is everywhere parallel to the helices.
What happens to the large eddies when net drag reduction is achieved by outer flow manipulators

The tandem-arranged parallel plate manipulator (TAPPM) presently used to generate a flow with net drag reduction is conditionally sampled and found to exhibit significant changes of the boundary layer's large-scale motions at 20 delta(0), where delta(0) is the boundary layer thickness at the upstream plate of the TAPPM. Flow fields in the 'valleys' are equally affected. Both turbulent and irrotational flows then reestablish themselves by 50 delta(0). Flow visualization indicates that the TAPPM wake is very coherent at 20 delta(0), and has not yet spread into the wall region, while large scale motions and the ambient response flow continue to exhibit dynamic changes. This indicates that the shielding effect of the TAPPM's wake prolongs suppression of large-scale motions, thereby reducing skin friction over a sufficiently long extent of the boundary layer to overcome device drag and yield net drag reductions.
Time series analysis based on running Mann‐Whitney Z Statistics

A time series analysis method based on the calculation of Mann–Whitney U statistics is described. This method samples data rankings over running time windows, converts those samples to Mann–Whitney U statistics, and then normalizes the U statistics to Z statistics using Monte‐Carlo generated null parameters. Based on the Z statistics’ magnitudes this algorithm can identify time windows containing significant incidences of low or high data rankings, where the window length is determined by the sample size. By repeating this process with sampling windows of varying duration ranking regimes of arbitrary onset and duration can be objectively identified in a time series. The simplicity of the procedure's output – a time series’ most significant non‐overlapping ranking sequences – makes it possible to graphically identify common temporal breakpoints and patterns of variability in the analyses of multiple time series. This approach is demonstrated using United States annual temperature data during 1896–2008.
Between progress and struggle: young PR-scholars’ contribution to theory building and progress in public relations research

PurposeThe paper aims to analyze the contribution of young academics to the field of public relations (PR) and shows which authors exert most influence on them. The study thereby contributes to the assessment of the state of the art of theory building in the field. The authors analyzed the study data against the background of two approaches on progress in the field: Nothhaft et al.’s (2018) idea of strategic communication as an elusive concept and Winkler et al.’s (2021) narrative approach.Design/methodology/approachThe study comprises two parts. First, the authors conducted a survey among participants of the EUPRERA PhD-workshops between 2007 and 2019, asking respondents about their perception of the state of the field. Second, the authors performed a bibliometric (co-)citation analysis of the young scholars’ most important works.FindingsResults indicate that though the field has progressed in terms of quantity and diversified with regard to established paradigms, it has not matured in a sense that it has settled on a generally accepted theoretical underpinning. However, the data show how the dominant paradigms in the field map onto the co-citation networks that emerged out of the works of young scholars. The authors’ findings imply that this new generation might signal their allegiance to a paradigm by citing the works of its emblematic authors.Originality/valueUnlike most bibliometric studies, this one uses an author-centered approach, thus studying works that matter most to young academics themselves. Not only do the authors thereby contribute to the analysis of the state of theory building in PR research, but also expand the scope in looking at research as a social system, in which young researchers need to position themselves.
Electric field shielding in dielectric nanosolutions

To gain some insight into electrochemical activity of dielectric colloids of technical and biomedical interest we investigate a model of dielectric nanosolution whose micro-constitution is dominated by dipolarions -- positively and negatively charged spherically symmetric nano-structures composed of ionic charge surrounded by cloud of radially polarized dipoles of electrically neutral molecules of solvent. Combing the standard constitutive equations of an isotropic dielectric liquid with Maxwell equation of electrostatics and presuming the Boltzmann shape of the particle density of bound-charge we derive equation for the in-medium electrostatic field. Particular attention is given to numerical analysis of obtained analytic solutions of this equation describing the exterior fields of dipolarions with dipolar atmospheres of solvent molecules endowed with either permanent or field-induced dipole moments radially polarized by central symmetric field of counterions. The presented computations show that the electric field shielding of dipolarions in dielectric nanosolutions is quite different from that of counterionic nano-complexes of Debye-H\"uckel theory of electrolytes.
Ca 3 P 2 and other topological semimetals with line nodes and drumhead surface states

Topological nodal line semimetals exhibit protected one-dimensional Fermi lines, which arise due to an intricate interplay between the symmetry and topology of the electronic wave functions. In this paper, the authors derive the $\mathbb{Z}$ invariants that guarantee the stability of the line nodes in the bulk under reflection symmetry and show that a quantized Berry phase (i.e, a ${\mathbb{Z}}_{2}$ invariant) leads to the appearance of protected surfaces states, which take the shape of a drumhead. Most importantly, a relation between the $\mathbb{Z}$ invariant, which characterizes the bulk, and the quantized Berry phase is derived. This relation is generally applicable to any topological nodal line semimetal with or without spin-orbit coupling. Moreover, it is shown that the Berry phase invariant can be simply obtained by computing the reflection parity eigenvalues. As a representative example of a topological nodal line semimetal, the authors examine Ca${}_{3}$P${}_{2}$, which has been identified as an ideal system with the line nodes at the Fermi energy. Using numerical calculations, they show that the drumhead surface state of Ca${}_{3}$P${}_{2}$ has a rather weak dispersion, which implies that correlation effects are enhanced at the surface.
Comparative Morphogenesis of Antennal Sensilla Between the Leptocybe invasa and Ophelimus maskelli (Hymenoptera: Eulophidae) and its relationship to their vital Capacity

insects. The sensilla have been labelled according to their distribution, size, and shape. May also use scanning electron microscopy to reveal sensory organs. On the antennae of L. invasa , sensilla were dispersed in six different types, while on the antennae of O. maskelli , they were placed in nine different types. According to this study, O. maskelli had more sensilla overall than L. invasa ; along the antenna, O. maskelli had 100 sensilla compared to L. invasa more than 37 sensilla. The results from the measured biological characteristics were explained by the qualitative and quantitative differences in the sensilla types of the two species on the antenna, favouring O. Maskelli . The results tended to show that O. Maskelli was the strongest rival that could displace L. invasa .
Developing a matrix characterization for MELL

We present a matrix characterization of logical validity in the multiplicitative exponential fragment of linear logic. It extends an earlier characterization of the multiplicative fragment by the exponentials and multiplicative constant. In the process of proving the matrix characterization correct and complete, a methodology for developing a matrix characterization from a sequent calculus by a series of intermediate calculi is demonstrated. Our characterization provides a foundation for matrix-based proof search procedures as well as for procedures which translate machine-found proofs back into the usual sequent calculus.
ATLAS AND CATALOG OF COLLISIONAL RING GALAXIES

We present a catalog and imaging atlas of classical (collisional) RING galaxies distilled from the Arp–Madore Atlas of Southern Peculiar Galaxies and Associations and supplemented with other known RING galaxies from the published literature. The catalog lists the original host object, compiles available redshifts, and presents newly determined positions for the central (target) galaxy and its nearest companion(s). 127 collisional RING systems are illustrated and their components identified. All of the RINGS have plausible colliders identified; many are radial-velocity confirmed companions. Finally, we make note of the existence of a rare subclass of RING galaxies exemplified by AM 2136-492, double/concentric RING galaxies. These objects are predicted by numerical simulations, but they appear to be quite rare and/or short lived in nature.
Role of Lung Recruitment Maneuvers in Elderly Post-operative Upper Abdominal Surgery

Background: A significant catastrophic side effect of upper abdominal surgery is postoperative pulmonary complications (PPCs), which raise costs, morbidity, and mortality. Objective: The aim of the present study is to assess how lung recruitment maneuvers (LRMs) affect both the ventilatory functions and frequency of PPCs in geriatric patients. Patients and methods: A total of 80 geriatric patients from New Surgery Hospital in Zagazig University Hospitals for open upper abdomen surgery were recruited. The participants were randomly divided into two groups; 40 patients in the intervention group (preoperative LRMs training) and 40 patients in the control group (conventional perioperative care). Results: When compared to the first postoperative day, the intervention group's forced expiratory volume in one second, forced vital capacity, and oxygen saturation were significantly improved throughout the ventilatory function tests (p ≤0.001). Furthermore, the intervention group's reported lower PPCs incidence compared to the control group (15% vs. 30% on the 3 rd postoperative day and 15% vs.37.5% on the 5 th postoperative day, respectively). Conclusion: By restoring the measured lung volumes, LRMs effectively improve the perioperative management of geriatric patients by preventing PPCs.
The dynamics of variable-density turbulence

The dynamics of variable-density turbulent fluids are studied by direct numerical simulation. The flow is incompressible so that acoustic waves are decoupled from the problem, and implying that density is not a thermodynamic variable. Changes in density occur due to molecular mixing. The velocity field is, in general, divergent. A pseudo-spectral numerical technique is used to solve the equations of motion. Three-dimensional simulations are performed using a grid size of 128{sup 3} grid points. Two types of problems are studied: (1) the decay of isotropic, variable-density turbulence, and (2) buoyancy-generated turbulence in a fluid with large density fluctuations (such that the Boussinesq approximation is not valid). In the case of isotropic, variable-density turbulence, the overall statistical decay behavior, for the cases studied, is relatively unaffected by the presence of density variations when the initial density and velocity fields are statistically independent. The results for this case are in quantitative agreement with previous numerical and laboratory results. In this case, the initial density field has a bimodal probability density function (pdf) which evolves in time towards a Gaussian distribution. The pdf of the density field is symmetric about its mean value throughout its evolution. If the initial velocity and density fields are statistically dependent, however, the decay process is significantly affected by the density fluctuations. For this case, the pdf of the density becomes asymmetric about its mean value during the early stages of its evolution. It is argued that these asymmetries in the pdf of the density field are due to different entrainment rates, into the mixing region, that favor the high speed fluid.
Preserving Indigenous Semai Folktales as A Process of Educating 21st Century Learners Through Gamification

Gamifying Semai folktales is a project which aims to preserve the Semai cultural heritage and values in the 21st century and the gamification idea is also in line with policy makers, the Ministry of Higher Education Malaysia, via its Minister, mentioned the importance of integrating gamification in Teaching &Learning of all levels of education. The project explores the idea of gamification in encouraging ESL students to read short stories from various genres and culture and it is also set to disclose the ramifications of language gamifications in ESL teaching and learning particularly in the choice of Orang Asli Semai folktales in the selection. To ensure the language learners’ understanding of the Semai folktales, the animated movie comes with online quizzes to help the language learners to comprehend the content of the story and are able analyse the short story elements. Applying gamification in teaching and learning will give a new dimension not only to the students but also to prepare more dynamic language educators in embracing the rapid change in teaching and technology. Since gamification has exciting elements which can be motivating to the students, the videos and online quiz questions created have great commercialization potential. The videos uploaded on YouTube will be able to garner followers and the online questions uploaded on Quizzes can be accessed by any ESL learners. The findings revealed that most students preferred language activities with gamification which are more relevant to the 21st century learners.
SUB-ALFVÉNIC NON-IDEAL MAGNETOHYDRODYNAMIC TURBULENCE SIMULATIONS WITH AMBIPOLAR DIFFUSION. III. IMPLICATIONS FOR OBSERVATIONS AND TURBULENT ENHANCEMENT

Ambipolar diffusion (AD) is believed to be a crucial process for redistributing magnetic flux in the dense molecular gas that occurs in regions of star formation. We carry out numerical simulations of this process in regions of low ionization using the heavy-ion approximation. The simulations are for regions of strong field (plasma β = 0.1) and mildly supersonic turbulence (, corresponding to an Alfvén Mach number of 0.67). The velocity power spectrum of the neutral gas changes from an Iroshnikov–Kraichnan spectrum in the case of ideal MHD to a Burgers spectrum in the case of a shock-dominated hydrodynamic system. The magnetic power spectrum shows a similar behavior. We use a one-dimensional radiative transfer code to post-process our simulation results; the simulated emission from the CS J = 2–1 and H13CO+ J = 1–0 lines shows that the effects of AD are observable in principle. Linewidths of ions are observed to be less than those of neutrals, and we confirm previous suggestions that this is due to AD. We show that AD is unlikely to affect the Chandrasekhar–Fermi method for inferring field strengths unless the AD is stronger than generally observed. Finally, we present a study of the enhancement of AD by turbulence, finding that AD is accelerated by factor 2–4.5 for non-self-gravitating systems with the level of turbulence we consider.
The dynamical state of the first hydrostatic core candidate Chamaeleon-MMS1

Context. First hydrostatic cores represent a theoretically predicted intermediate evolutionary link between the prestellar and protostellar phases. Studying the observational characteristics of first core candidates is therefore vital for probing and understanding the earliest phases of star formation. Aims. We aim to determine the dynamical state of the first hydrostatic core candidate Chamaeleon-MMS1 (Cha-MMS1). Methods. We observed Cha-MMS1 in various molecular transitions with the APEX and Mopra telescopes. Continuum data retrieved from the Spitzer Heritage Archive were used to estimate the internal luminosity of the source. The molecular emission was modelled with a radiative transfer code to derive constraints on the kinematics of the envelope, which were then compared to the predictions of magneto-hydrodynamic simulations. �� ) �� )( ) ) ( �� )( �� )( ��
Real‐time automatic crack detection method based on drone

Real‐time automated drone‐based crack detection can be used for efficient building damage assessment. This paper proposes an automated real‐time crack detection method based on a drone. Using a lightweight classification algorithm, a lightweight segmentation algorithm, a high‐precision segmentation algorithm, and a crack width measurement algorithm, the cracks are classified, roughly segmented, finely segmented, and the maximum width is extracted. A crack information‐assisted drone flight automatic control algorithm for automatic crack detection guides the drone toward the crack position. The effectiveness of the crack detection algorithm and the crack information‐assisted drone flight automatic control algorithm was tested on two different datasets, a two‐story building, and a 16‐m‐high shaking table test building. The results show that crack detection can be finished in real‐time during the flight. Using the proposed method can significantly improve the MIoU of crack edge detection and the accuracy of maximum crack width measurement under the non‐ideal shooting conditions of the actual inspection situation by automatically approaching the vicinity of the crack.