Miracle-dz/UniFAR-FTUs huggingface dataset:
Impact of Cloud Process in the Mixing State and Microphysical Properties of Soot Particles: Implications in Light Absorption Enhancement

The radiative forcing of soot is dependent on the morphology, mixing state and structure. Cloud processing has been predicted to affect their mixing properties but little is known about the resulting light absorption properties. We collected ambient particles in the pre‐cloud period, the cloud residues and interstitials in the in‐cloud period at Mt. Tianjing (southern China). The morphology parameters of soot aggregates with varying mixing materials [sulfate (S) and organics (OM)] and mixing structures were investigated by a transmission electron microscope, and their absorption cross section were calculated based on discrete dipole approximation. We found that the number contribution of soot‐S decreased from 45% in the pre‐cloud period to 32% in the in‐cloud period, and that of soot‐OM increased from 44% to 60%. Moreover, the number proportion of soot‐OM with fully embedded structure increased remarkably in the in‐cloud period (29%), compared with that in the pre‐cloud period (3%). In addition, the soot‐S aggregates became denser after in‐cloud aqueous process. However, for soot‐OM aggregates, the morphology remained relatively constant. The distinctly different change of soot‐S and soot‐OM in morphology highlights the chemically resolved reconstruction of soot morphology. Theoretical calculation further shows that the changes of soot particles in the mixing state and morphological characteristics by the cloud process resulted in the light absorption enhancement increase from 1.57 to 2.01. This study highlights that the evolution of microphysical properties upon cloud processing should also be considered in climate models to more accurately evaluate the impacts of soot particles.
Precursor activity in bright, long BATSE gamma-ray bursts

We study a sample of bright, long Burst and Transient Source Experiment (BATSE) gamma-ray burst (GRB) light curves in the 200 s before the detection of the GRB prompt emission. We find that in a sizable fraction of cases (∼20 per cent) there is evidence of emission above the background coming from the same direction as the GRB. This emission is characterized by a softer spectrum with respect to the main spectrum and contains a small fraction (0.1‐1 per cent) of the total event counts. The precursors have typical delays of several tens of seconds extending (in few cases) up to 200 s (the limit of the investigated period). Their spectra are typically non-thermal power-law spectra, aside from a few cases. Such long delays and the non-thermal origin of their spectra are hard to reconcile with any model for the progenitor. Ke yw ords: radiation mechanisms: non-thermal ‐ gamma-rays: bursts.
Induced self-energy on a static scalar charged particle in the spacetime of a global monopole with finite core

We analyze the induced self-energy and self-force on a scalar point-like charged test particle placed at rest in the spacetime of a global monopole admitting a general spherically symmetric inner structure to it. In order to develop this analysis we calculate the three-dimensional Green's function associated with this physical system. We explicitly show that for points outside the monopole's core the scalar self-energy presents two distinct contributions. The first one is induced by the non-trivial topology of the global monopole considered as a point-like defect and the second is a correction induced by the non-vanishing inner structure attributed to it. For points inside the monopole, the self-energy also present a similar structure, where now the first contribution depends on the geometry of the spacetime inside. As illustrations of the general procedure adopted, two specific models, namely flower-pot and the ballpoint-pen, are considered for the region inside. For these two different situations, we were able to obtain exact expressions for the self-energies and self-forces in the regions outside and inside the global monopole.
A hard-sphere model on generalized Bethe lattices: dynamics

We analyse the dynamics of a hard-sphere lattice gas on generalized Bethe lattices using a projective approximation scheme (PAS). The latter consists in mapping the system’s dynamics to a finite set of global observables; closure of the resulting equations is obtained by approximating the true non-equilibrium state by a pseudo-equilibrium based only on the value of the observables under consideration. We study the liquid–crystal as well as the liquid–spin-glass transitions; special attention is given to the prediction of equilibration times and their divergence close to the phase transitions. Analytical results are corroborated by Monte Carlo simulations.
3C390.3: More Stable Evidence for Origination of Double-Peaked Broad Balmer Lines from Accretion Disk Near Central Black Hole

In this manuscript, the structure of broad emission line regions (BLRs) of well-mapping double-peaked emitter (AGN with broad double-peaked low-ionization emission lines) 3C390.3 is studied. Besides the best fitted results for double-peaked broad optical balmer lines of 3C390.3 by theoretical disk model, we try to find another way to further confirm the origination of double-peaked line from accretion disk. Based on the long-period observed spectra in optical band around 1995 collected from AGN WATCH project, the theoretical disk parameters of disk-like BLRs supposed by elliptical accretion disk model (Eracleous et al. 1995) have been well determined. Through the theoretical disk-like BLRs, characters of observed light-curves of broad double-peaked H$\alpha$ of 3C390.3 can be well reproduced based on the reverberation mapping technique. Thus the accretion disk model is preferred as one better model for BLRs of 3C390.3. Furthermore, we can find that different disk parameters should lead to some different results about size of BLRs of 3C390.3 from the one measured through observational data, which indicates the measured disk parameters are significantly valid for 3C390.3. After that, the precession of theoretical elliptical disk-like BLRs being considered, we can find that the expected line profile in 2000 by theoretical model is consistent with the observed line profile by HST around 2000. Based on the results, we can further believe that the origination of broad double-peaked balmer emission lines of 3C390.3 are from accretion disk around central black hole.
A small cosmological constant due to non-perturbative quantum effects

We propose an explanation for the ‘unnatural smallness’ of the cosmological constant, arguing that the stress–energy tensor of the Standard Model should be given by 〈Tμν〉 = ρvac ημν, with a vacuum energy ρvac that differs from the usual ‘dimensional analysis’ result by an exponentially small factor associated with non-perturbative effects. We substantiate our proposal by a rigorous analysis of a toy model, namely the two-dimensional Gross–Neveu model. The stress energy operator is constructed concretely via the operator-product-expansion, and the inherent ambiguities in its construction are carefully examined. Our result for the vacuum energy is then obtained from the assumptions that (a) the OPE-coefficients have an analytic dependence on g, which we propose to be a generic feature of QFT, and that (b) the vacuum energy vanishes to all orders in perturbation theory. Our result can also be interpreted as saying that, while the semi-classical Einstein’s equation can be fulfilled in Minkowski space at the perturbative level, it cannot at the non-perturbative level. Extrapolating our result from the Gross–Neveu model to the Standard Model, one would expect to find ρ vac ∼Λ4e−O(1)/g2? >, where Λ is an energy scale such as Λ = MH, and g is a gauge coupling such as g2/4π = αEW. Assuming this extrapolation is justified, the exponentially small factor due to non-perturbative effects would explain why this quantity is tiny, instead of strictly zero.
Effect of Supplementation with Watermelon Seeds Pulp on Characteristics of Set -Yogurt as A Natural source of Iron

The aim of this study was to evaluate the effect of supplementation of different ratio of watermelon seeds on the physciochemical, rheological and sensory properties of set yogurt. The Yoghurt was supplemented with watermelon seeds ( Citrullusl anatus ), in different ratio (T1) 3%, (T2) 5%, (T3) 10% and (T4) 15% were compared with control. The addition of watermelon seeds had a significant effect on pH values and acidity% of different yoghurt samples. Increasing of seeds ratio increased iron content, T.S, via protein content . Also the viscosity was increased as the percentage of ratio of seeds increased . sensory properties of all fresh samples had the best score and accepted after 3 and 10 days of storage. Results indicated that watermelon seeds consider as a good source of nutrients in the diet and may have health and economic benefits due to its content of fiber, minerals and a great effect of antioxidant activity.
A SECOND METHOD TO PHOTOMETRICALLY ALIGN MULTI-SITE MICROLENSING LIGHT CURVES: SOURCE COLOR IN PLANETARY EVENT MOA-2007-BLG-192

At present, microlensing light curves from different telescopes and filters are photometrically aligned by fitting them to a common model. We present a second method based on photometry of common field stars. If two spectral responses are similar (or the color of the source is known), then this technique can resolve important ambiguities that frequently arise when predicting the future course of the event, and that occasionally persist even when the event is over. Or, if the spectral responses are different, it can be used to derive the color of the source when that is unknown. We present the essential elements of this technique and apply it to the case of MOA-2007-BLG-192, an important planetary event for which the system may be a terrestrial planet orbiting a brown dwarf or very low mass star. The refined estimate of the source color that we derive here V − I = 2.36 ± 0.03 will aid in making the estimate of the lens mass more precise.
The Role of Managerial ability on Operational Performance and Stock Return moderated by CEO Overconfidence

Purpose: This study aims to determine the effect of the acquisition company's managerial ability on the company's performance after mergers and acquisitions. CEO overconfidence was added as a moderating effect in this study. The sample data of this study include companies listed on the IDX that carried out corporate actions in the 2014-2018 period. Methodology: The sampling technique used is purposive sampling, and the data analysis method used is the SPSS and Smart PLS applications. This research used return-on-assets, cash flow from operations and market-to-book ratio to measeure the firm’s operational performance and buy-and-hold abnormal return to measure company’s stock return. Findings: The results of this study indicate that managerial ability affects the firm’s operational performance. This study also shows that CEO overconfidence can strengthen the relationship between managerial ability and the firm’s operational performance along with the rate of the acquiring companies stock returns. Originality/Value: The managerial implications of this study suggest that companies should prioritize CEO overconfidence in the fit-and-proper test. CEO overconfidence can bring the company forward and earn higher returns. Novelty in this study provides a new insight of corporate action that CEO overconfidence can moderate the relationship between managerial ability and the firm’s operational performance and the company's stock return.
Half and Half Nail (Lindsay’s Nail) for Prediction of Biochemical Disorders and Unveiling its Etiopathogenesis in Chronic Kidney Disease Stage 5

Background: Specific nail abnormalities, such as half-and-half nails (sometimes called Lindsay's nails), are frequently associated with chronic kidney disease (CKD). In 1963, William B. Bean first noted it in two of his renal illness patients. Half-nail deformities have a mysterious origin that has yet to be identified. It doesn't improve with dialysis, but it goes away completely following a kidney transplant. Objective: This study was aimed to shed light on study the predictive value of half-and-half nail for biochemical disorders in patients with CKD stage 5 and try to unveil its etiopathogenesis. Patients and methods: This case-control study included a total of 100 patients with chronic kidney disease, stage 5, classified into four equal groups, the first two groups were without hemodialysis, and One has regular nails, while the other has half-and-half nails, the second two groups were on hemodialysis and one without half and half nails and the other group with half-and-half nails. Results: According to kidney function tests and other laboratory results, this study found no statistically significant difference (p value >.05) between the study groups. Patients with half-and-half nails had a higher mean age and duration of hemodialysis, both of which were statistically significant (p<0.05), and additionally, the research groups varied greatly in terms of the prevalence of DM as a root cause of CKD. Conclusion: It could be concluded that there are significant positive correlations between age, duration on hemodialysis, diabetes as causes of chronic kidney disease (CKD), and presence of half -and- half nails.
Dynamical thickening transition in plate coating with concentrated surfactant solutions

We present a large range of experimental data concerning the influence of surfactants on the well-known Landau-Levich-Derjaguin experiment where a liquid film is generated by pulling a solid plate out of a bath. The thickness h of the film was measured as a function of the pulling velocity V for different kind of surfactant and at various concentrations. Measuring the thickening factor $\alpha=h/h_{LLD}$, where hLLD is obtained for a pure liquid, in a wide range of capillary ($Ca=\eta V/\gamma$), two regimes of constant thickening can be identified: at small capillary number, $\alpha$ is large due to a confinement and surface elasticity (or Marangoni) effects and at large Ca, $\alpha$ is slightly higher than unity, due to surface viscous effects. At intermediate Ca, $\alpha$ decreases as Ca increases along a "dynamic transition". In the case of non-ionic surfactants, the dynamic transition occurs at a fixed Ca, independently of the surfactant concentration, while for ionic surfactants, the dynamic transition depends on the concentration due to the existence of an electrostatic barrier. The control of physico-chemical parameters allowed us to elucidate the nature of the dynamic transition and to relate it to surface rheology.
Shrinking D-Strings Expanding onto a Hypertube

A solution to the BI action describing an expanded D3-brane is considered. The configuration is not supersymmetric but is supported against collapse by the Poynting vector. In the uniform magnetic field limit, the brane magnetic charge grows without limit while the energy and the radius of the brane remain finite. In this limit the brane consists of a large number of small D-strings forming a hypertube and kept in equilibrium by the electric flux along the hypertube.
Functional and Radiological Outcome after Syndesmotic Screw Fixation and Removal

Background: There is a wide debate about the necessity and timing for syndesmotic screw and removal. Objective : The aim of the current work was to assess the improvement in functional and radiological outcome after syndesmotic screw fixation and removal. Materials and Methods: This prospective cohort study included a total of 18 patients who underwent ankle fracture surgery with syndesmotic fixation, attending at Department of Orthopedic, Zagazig University Hospitals and Sharq El-Madina Hospital. Patients were divided into two groups: Group (I): included 9 patients who underwent ankle fracture ORIF with syndesmotic fixation followed by subsequent syndesmotic screw removal (SSR). Group (II): included 9 patients, who underwent ankle fracture ORIF with syndesmotic fixation without subsequent SSR. Result: Clinical and x-rays results were similar in both groups at follow-up. There were no significant differences between both groups regarding to clinical data, clinical outcomes, radiological outcomes, and complications. Conclusions: It could be concluded that syndesmotic screw removal is not necessary. Removal’s timing of the device must guarantee the complete healing of the injured syndesmotic soft tissues.
State redistribution as merging: introducing the coherent relay

State redistribution allows one party to optimally send part of her state to another party. Here we show that this can be derived simply from two applications of coherent state-merging. This provides a protocol whereby a middle party acts as a relay station to help another party more efficiently transfer quantum states. This also gives a protocol for state splitting and the reverse Shannon theorem (assisted or unassisted by side information), and allows one to use less classical communication for partial state-merging using a sub-protocol we call ebit repackaging. Thus state-merging generates the other primitives of quantum communication theory, reducing the hierarchy between members of the first family of quantum protocols.
Totally endoscopic versus conventional septoplasty assisted by endoscope

Background: Traditional septoplasty is being phased out in favor of endoscopic septoplasty. It ensures minimal tissue dissection and fewer surgical problems. Aim of the study: Evaluation the effectiveness of the endoscopic septoplasty for correction of different types of septal deformity (deviation_ spur ) compared to endoscopic assisted conventional septoplasty. Patients and Methods: This prospective study was conducted on 60 patients of both sex, who attached to the out-patient E.N. T clinic at Bab El Sharaya (Sayed Galal) Hospital from April of 2021 to March of 2022 distributed as 2 same groups: Group A included thirty patients submit to totally endoscopic septoplasty and group B involved thirty patients underwent conventional septoplasty assisted by endoscope . All the patients suffering from nasal obstruction due to a significant septal deviation. Results: Both groups had no significant differences in age or gender. While there was a substantial difference in the duration of operation and intraoperative blood loss between the two groups. The length ranged from 20 to 50 minutes in group A and 35 to 65 minutes in group B, while the blood loss ranged from 25 to 65 ml in group A and 45 to 90 ml in group B. In this study, the difference between the endoscopic and conventional groups was statistically insignificant in terms of early postoperative complications like nasal synechiae, septal hematoma, septal perforation, or CSF leakage, as well as the intraoperative flap and late post-operative complications after 3 months in both groups. Conclusion: Both techniques are effective in reducing nasal obstruction and related symptoms with fewer overall complications in the endoscopic approach.
Inducing Systemic Resistance against Root-knot Nematodes in Eggplant by Chemical and Organic Fertilizers and Antioxidant Substances

One of the most significant pests of vegetable crops is known as root-knot nematode ( Meloidogyne spp.). Although, using synthetic nematicides to manage nematodes are a tried-and-true successful method, this tactic raises concerns due to its high costs and negative environmental impacts. In order to control root-knot nematode infection and infestation on eggplant cv. Black Beauty seedlings in an environmentally friendly manner, experiments were carried out using a chemical fertilizer (NPK), an organic fertilizer (humic acid), and some antioxidant substances (selenium, vitamin C, and E) individually and in combination under greenhouse and field conditions. The obtained results of these investigations, revealed that all tested treatments have the ability to reduce nematode populations, which would raise yield. Vitamins C and E combined with NPK fertilizer significantly increased shoot and root fresh and shoot dry weight over control in greenhouse conditions. They also significantly decreased total final nematode population with reproduction factor (Rf =0.44) less than control. Additionally, simultaneous application of humic acid, selenium, and NPK boosting plant conditions and greatly reduced J 2 s, gall formation, and number of egg masses. Plant height, fresh and dry weight, yield per plant, N, P, and K contents, as well as fruit quality (total carbohydrates, vitamin A, and C) were all estimated during field trials. As for, parameters of eggplant as affected by application of humic acid and/or antioxidants concomitantly with NPK fertilization were significantly increased. Furthermore, reducing activity in total nematode population in soil and root was achieved by all tested treatments. It could be observed that humic acid and different antioxidant when combined with NPK induced systemic which consequently caused suppression in eggplant against root knot nematode.
Definitely Not a Walk in the Park: Coping with Competing Values in Complex Project Networks

Complex project networks confront project actors, with value pluralism originating from a plethora of competing organizational and institutional systems related to the project environment. Using a single urban redevelopment case study, we present a dynamic understanding of the emergence and nature of conflicts in different conflict arenas of collaborative project networks. We identify seven coping patterns to reduce and engage with this complexity in the process of delivering value throughout projects. The coping patterns enable a more dynamic and flexible approach toward conflict management in project networks with a high degree of conflicting project interests.
Correlation between Amelogenin and Osteopontin Expression in Ameloblastomas and Odontogenic Cysts: An Immunohistochemical Study

Background and Aim: Odontogenic tumors are heterogeneous group of lesions originating from odontogenic apparatus and their remnants. Although their etiopathogenesis remains unclear, some advances have been accomplished in understanding the role of their enamel-related proteins. Amelogenin is the major structural enamel matrix protein involved in the development of odontogenic epithelium. Osteopontin is a multifunctional biomarker that affects cell survival, migration, calcification inhibition, and immune cell function modulation. The study aimed to assess the immunoexpression of both biomarkers in different odontogenic lesions. Material and Methods: Forty-eight paraffin-embedded blocks of odontogenic tumors and cysts were involved including multicystic ameloblastoma (n=10), unicystic ameloblastoma (n=9), dentigerous cyst (n=11), odontogenic keratocysts (n=7), and radicular cyst (n=8). Quantitative immunohistochemical analysis for amelogenin and osteopontin were recorded with index of positivity. The results were statistically analyzed using Kruskal-Wallis test and Spearman’s coefficient rank correlation analysis. Results: Positive immunoreaction for amelogenin was demonstrated in both control and dentigerous cyst groups while unnoticeable expression was detected in other studied groups. Regarding osteopontin, positivity was detected in ameloblastomas and some examined cysts. Highly statistically significant differences between both biomarkers were revealed in all tested groups (p < 0.001). Spearman’s rank analysis reported negative correlation between both biomarkers with highly significant values (p < 0.0001). Conclusion: Amelogenin can be a promising predictor for the biological behavior of odontogenic lesions and pro-invasive factor osteopontin can predict neoplastic potential and high probability of recurrence.