Miracle-dz/UniFAR-FTUs huggingface dataset:
A search for enhanced very-high-energy gamma-ray emission during the March 2013 Crab Nebula flare

Despite being possibly the best-studied cosmic particle accelerator, the Crab Nebula continues to pose challenging questions for experimentalists and theorists alike. The electromagnetic radiation that has so far been observed from the Crab Nebula has been shown to be consistent with two well-known mechanisms in physics: synchrotron emission, in which corpuscles of light (photons) are radiated by charged particles that follow helical paths in a magnetic field; and inverse-Compton scattering, in which a photon is made much more energetic by interaction with an electron traveling close to the speed of light [1]. The energy source that powers the nebula is thought to be the Crab pulsar at its center, and long-standing models of the Crab have met with success in this framework [2,3]. However, the relatively recent reports by the AGILE and Fermi teams in 2011 of high-energy (HE; E > 100 million electron volts; eV) gamma-ray flaring
Do Incentives Matter in Persuading Companies to Embrace Advanced Reporting Standards Voluntarily?

Using the evidence from Malaysia this study aims to investigate how incentives for Extensible Business Reporting Language (XBRL) affect the relationship between the intention to use and user behavior when it comes to filing submissions. In this regard a survey was implemented among company employees who are involved in the preparation and submission of filings to Suruhanjaya Syarikat Malaysia (SSM). Results indicate that incentives strengthen the positive relationship between XBRL filing intention to use and usage behavior. The study also discovered that intent to use significantly impacts XBRL filing behavior. Compared to perceived usefulness, perceived ease of use was found to have a greater influence on XBRL filing intention. Perceived ease of use was also found to be a significant indicator of XBRL filing perceived usefulness. The result of this study provides guidelines for incorporating XBRL technology into the practices of government authorities and policymakers. The study’s findings can also be used to develop strategies to encourage filers to submit voluntary filings using the XBRL platform.
Effect of the RF Power of PECVD on the Crystalline Fractions of Microcrystalline Silicon (μc-Si:H) Films and Their Structural, Optical, and Electronic Properties

In this work, we report on the deposition of microcrystalline silicon (µc-Si:H) films produced from silane (SiH4), hydrogen (H2), and argon (Ar) mixtures using the plasma-enhanced chemical vapor deposition (PECVD) technique at 200 °C. Particularly, we studied the effect of RF power on the crystalline fraction (XC) of the deposited films, and we have correlated the XC with their optical, electrical, and structural characteristics. Different types of characterization were performed in the µc-Si:H film series. We used several techniques, such as Raman scattering spectroscopy, Fourier transform infrared spectroscopy (FTIR), atomic force microscopy (AFM), field emission scanning electron microscopy (FE-SEM), and transmission electron microscopy (TEM), among others. Our results show that RF power had a strong effect on the XC of the films, and there is an optimal value for producing films with the largest XC.
Impact of Integrated Nutrient Management on Growth, Yield and Quality Attributes of Sweet Orange (Citrus Sinensis L. Osbeck) CV. Phule Mosambi

Effects of integrated nutrient management (INM) approach on the growth, yield, and quality of sweet orange [Citrus sinensis (L.) Osbeck] cv. Phule Mosambi was investigated. Eleven treatments were imposed in Complete Randomized Design (CRD) for two seasons (2019 and 2020) and among the treatments, T11 [50% RDN + 20kg FYM/tree + 25% N from Castor Cake + 10ml Bio NPK Consortium + Micronutrient foliar spray (1% Grade IV)] recorded the maximum incremental plant height (35.28 cm), plant spread N-S (45.73 cm), plant spread E-W (45.32 cm) and canopy volume (0.061m3). Similarly treatment T11 significantly increased several yield parameters viz., the maximum fruit length (8.11cm), fruit diameter (7.96 cm), fruit weight (241.91 g), fruit volume (251.17 cc), no. of fruits per tree (255.17), yield (61.81 kg per tree and 17.18 t/ha) in pooled data. Amid quality traits, T11 stood significantly superior with respect to total sugar (6.99 %) content; it also showed higher sugar: acid ratio (14.27), ascorbic acid content (40.11 mg/100 ml pulp). Hence this particular treatment can be adopted preferably in sweet orange cultivation at middle Gujarat (India). Bangladesh J. Bot. 52(2): 345-355, 2023 (June)
High-response hybrid quantum dots- 2D conductor phototransistors: recent progress and perspectives

Abstract Having been inspired by the tremendous progress in material nanoscience and device nanoengineering, hybrid phototransistors combine solution processed colloidal semiconductor quantum dots (QDs) with graphene or two-dimensional (2D) semiconductor materials. Novel detectors demonstrate ultrahigh photoconductive gain, high and selective photoresponse, low noise, and very high responsivity in visible- and near-infrared ranges. The outstanding performance of phototransistors is primarily due to the strong, selective, and size tunable absorption of QDs and fast charge transfer in 2D high mobility conductors. However, the relatively small mobility of QD nanomaterials was a technological barrier, which limited the operating rate of devices. Very recent innovations in detector design and significant progress in QD ligand engineering provide effective tools for further qualitative improvements. This article reviews the recent progress in material science, nanophysics, and device engineering related to hybrid phototransistors. Detectors based on various QD nanomaterials and several 2D conductors are compared, and advantages and disadvantages of various nanomaterials for applications in hybrid phototransistors are identified. We also benchmark the experimental characteristics with model results that establish interrelations and tradeoffs between detector characteristics, such as responsivity, dark and noise currents, the photocarrier lifetime, response, and noise bandwidths. We have shown that the most recent phototransistors demonstrate performance limited by the fundamental generation recombination noise in high gain devices. Interrelation between the dynamic range of the detector and the detector sensitivity is discussed. The review is concluded with a brief discussion of the remaining challenges and possible significant improvements in the performance of hybrid phototransistors.
Mass Propagation of Dendrocalamus Giganteus Wall. Ex Munro Through in Vitro Culture

The present experiment was conducted to establish an efficient protocol for mass propagation of Dendrocalamus giganteus Wall. ex Munro through in vitro culture using nodal segments as explants. The highest percentage of shoot induction (86.67 %) was obtained in the liquid MS medium supplemented with 1.5 mg/l BAP and 1.0 mg/l TDZ with maximum number of shoots (3.91 ± 0.87) per explant. The highest number and length of shoots were 22.83 ± 1.30 shoots/culture and 7.71 ± 0.96 cm, respectively induced on agitated liquid MS medium supplemented with 2.0 mg/l BAP and 1.0 mg/l TDZ. Incorporation of 8 % coconut water in the above mentioned medium resulted satisfactory shoot growth and development. The best response towards root induction (90 %) was observed when 3-4 shoots clump were transferred onto halfstrength of gelled MS medium fortified with 4.0 mg/l IBA with 9.31 ± 1.45 roots per unit shoot. Successful acclimatization of well-rooted clumps of 4-5 shoots was achieved in a mixture of soil, sand, and compost (1 : 1 : 1) with 90% survival rate. Bangladesh J. Bot. 52(2): 337-343, 2023 (June)
Abundance and distribution of Echinometra lucunter (Echinodermata, Echinoidea) at a rocky platform on the central coast of Venezuela

ABSTRACT Echinometra lucunter is a common Caribbean sea urchin, which the abundance and distribution were evaluated along a rocky platform at Cepe beach, Venezuela. Two surveys were conducted along transects perpendicular and parallel to the coast, from the shore to the wave breaking zone (WB), using 1m2 quadrat method. In survey-1 the smaller sea urchins (<1.8 cm) occurred in the tide pool zone (TP) and medium and large dominated in the WB. The average density recorded in the WB and TP (140.2 and 272.7 ind/m2 respectively) are among the highest values reported in the Caribbean. The maximum density recorded was 562 ind/m2 in the TP and most of them were juveniles (<1.8 cm). In survey-2 sea urchins (³3.0 cm) density ranged from 1 to 156 ind/m2 and the overall average was 29.6 (± 32.4) ind/m2. The highest density occurred in the platform western sector (average 43.2 ±41.3 ind/m2). In the transects parallel to the coast the sea urchin's abundance gradually decreased from the WB (130 ±12 ind/m2) towards the coast (0.3 ±0.37 ind/m2). In conclusion, the E. lucunter densities recorded on the Cepe beach platform are the highest values reported in the Caribbean.
Integrated Weed Management Effect on Weeds and Seed Cotton Yield

Integrated weed management is a system approach where by whole land use planning is done in advance to minimise the very invasion of weeds in aggressive forms and give crop plants a strongly competitive advantage over the weeds. Further, importance is given to involve more than one method of weed control in tackling the weeds so those broad spectrums of weeds are kept under check for longer period. A pre emergence herbicide take care of weeds only for a limited period and do not give long term weed control in a long duration crop like cotton where the problem of late emerging weeds arises and escape killing. So to attain a season long weed control, integration of chemical, mechanical and cultural methods holds a great promise in crop production. Hence, integrated weed management in cotton play important role in increasing crop production. Field experiments were conducted during 2013 and 2014, at Agricultural College and Research Institute, Madurai (Tamil Nadu Agricultural University) to study the effect of integrated weed management in rainfed cotton. The weed management practices consisted of pendimethalin (1.0 kg.ha-1) and (Calotropisgigantea leaf extract spray at three concentrations (10%, 20%, and 30%) in combination with power weeder operation twice and manual weeding twice. From the results of the experiments, it could be recommended that the integrated weed management practices like, application of PE pendimethalin at 1.0 kg ha-1 + power weeding on 40 DAS (T11) recorded higher seed cotton yield and economic return.
The connection between extreme stratospheric polar vortex events and tropospheric blockings

The variations of tropospheric blockings and their connections with the stratospheric polar vortex during different stages of the life cycle of extreme stratospheric polar vortex events (i.e. strong vortex (SV) events and weak vortex (WV) events) are investigated. The blocking frequency decreases over the Euro‐Atlantic sector and increases over the western North Pacific during the onset and maturation stages of SV events. There are more blocking days over the western North Pacific and weakened upward planetary wave fluxes in the stratosphere during the maturation stage of shorter time‐scale SV events than during longer time‐scale SV events and the weakening of the upward planetary wave fluxes mainly results from the linear wave interference effect. The blocking frequency is increased over the Euro‐Atlantic sector during the decline stage of SV events. This increase is found to be related to the descending stratospheric zonal wind anomalies and the poleward displacement of the eddy‐driven jet stream, which lasts for about 10 days and is associated with the descending positive stratospheric Northern Annular Mode (NAM) anomalies. The increased blocking frequency leads to an enhancement of the planetary wave fluxes in the stratosphere via both the linear wave interference (for shorter time‐scale SV events) and nonlinear wave interference (for longer time‐scale SV events) effect.
The Relationship Between Food Allergens and Migraine Among Patients With Migraine Referring to Shahid Mohammadi Neurology Clinic

Background: Although diet-induced migraines affect many people, the triggering foodstuffs are not fully identified yet. Detecting migraine-triggering foods and susceptible individuals assist in effective headache management. The aim of this study was to determine the relationship between eating allergens and developing or exacerbating migraine. Methods: This was a descriptive-analytical cross-sectional study with 230 migraine patients referring to the neurology clinic of Shahid Mohammadi hospital in Bandar Abbas. They were selected through purposive sampling. After obtaining informed consent from the patients, the required data were collected and then underwent analysis. Results: Overall, 52.4% and 47.6% of participants were females and males, respectively. Their mean age was 40.57±14.04. Based on the results, 61.9% of participants were married, and 60.3% of them had a family history of migraine. The average number of headaches per month and the duration of each headache were 3.16-4.19 times and 3.76-4.41 hours, respectively. Based on the findings, sausages (55.6%), carbonated beverages (0.54%), peanuts (0.46%), beef (44.4%), and canned food, coffee, and eggs (41.3%) are the most common foodstuffs that cause or exacerbate migraines. On the other hand, chicken (15.9%), strawberry, rice, and wheat (17.5%) had the least impact on the onset and exacerbation of migraine headaches. Conclusion: According to the results, identifying food allergens and eliminating them from patients’ diets can be effective in the prognosis of migraine and individuals’ quality of life.
Transcranial Doppler Ultrasound Role for Patients with Traumatic Brain Injury

Neurologists, neurosurgeons, and neurointensivists, including military, have a large armamentarium of diagnostic and monitoring devices available to detect primary and secondary brain injury and guide therapy in patients with acute traumatic brain injury (TBI) to avoid cerebral ischemia due to the posttraumatic vasospasm (PTV) and intracranial hypertension (ICH). This review summarizes the advantages and the specific roles of transcranial Doppler (TCD) ultrasonography for patients with acute and longterm effects of TBI. In critical care setting numerous publications showed that TCD is predictive of angiographic PTV and onset of ICH. The post TBI status of cerebrovascular reactivity and cerebral hemodynamics also has important implications with regard to the treatment of long-term effects of mild TBI (mTBI). Today it is abundant evidence that TCD is an important tool for monitoring the natural course of acute moderate and severe TBI, for evaluating the effect of medical treatment or intervention, for forecasting, and for identifying high-risk patients for onset of cerebral ischemia after TBI. TCD makes good clinical and economic sense as it is a reliable, quantitative, non-invasive and non-expensive “biomarker” to the acute clinical manifestations of TBI. TCD clinical utilization holds promise for better detection, characterization, and monitoring of objective cerebral hemodynamics changes in symptomatic patients with TBI not readily apparent by standard CT or conventional MRI techniques. TCD utilization will improve the sensitivity of neuroimaging to subtle brain perturbations and combining these objective measures with careful clinical characterization of patients may facilitate better understanding of the neural bases and treatment of the signs and symptoms of TBI. This review summarizes the advantages and the specific roles of TCD ultrasonography for patients with acute and long-term effects of TBI.
On the Periphery of the Inka Empire: Spatial Arrangement at the Pre-Hispanic Rock-art Site of Villavil 2 (Catamarca, Argentina)

This paper describes the analysis of the Late Prehispanic rock-art site of Villavil 2 (Catamarca, Argentina). Despite its modest and inconspicuous nature, this is one of the few examples of rock-art sites known in the area to date. The relationship of the site with the surrounding landscape and the distribution of rock art throughout the site are analysed using a combination of GIS and 3D modelling. This analysis makes it possible to gain an understanding of the factors behind the location and distribution of rock art on different spatial scales. The interpretation presented here suggests that this rock art reproduces, on a modest local scale, patterns of production of Inka landscapes of control and dominion that have been recognized elsewhere, in sites with a much more obvious monumental scale. The internal organization of the site mimics, on a small scale, forms of interaction with the wider landscape that have been regionally observed, usually focusing on more conspicuous elements such as architecture.
Compact and Scalable Active-Integrated Antenna System With Both Oscillation and Amplification Characteristics for High-Power Applications

An active-integrated antenna (AIA) system with a compact and scalable topology is proposed in this work. Two kinds of highly integrated AIA unit cells, i.e., the oscillating unit cell and the amplifying unit cell, are designed by integrating the active switching circuits into the modified monopole antennas. In each working cycle, the amplifying unit cell remains stable until it is triggered by the radiation wave from the oscillating unit cell for in-phase radiation, thereby amplifying the output power. In order to reduce the antenna spacing, the corners of the ground of the antennas are cut off and the threshold voltage of the amplifying unit cells is precisely controlled to offset the mutual coupling, consequently realizing a much compact system. The AIA systems with and without the amplifying unit cell are fabricated, and the measured results verify the power amplification characteristic of the compact and scalable system. Compared to the existing self-oscillating AIAs, this work provides one more degree of freedom for power enhancement with a compact topology.
Numerical Computation of Flow Reattachment Lengthovera Backward-Facing Step at High Reynolds Number

Investigation of flow separation and reattachment length over a backward facing step are such as the subjects of fundamental fluid dynamics research. The purpose this study is measurement of reattachment length on backward facing step. For this purpose, unsteady flow over a step was simulated in a 2-D by using Computational Fluid Dynamic. Then, secondary flow was added to the 1/3 height of step. In order to, the effect of angles of 15°, 30°, 45° and 90°, expansion ratios of 1.5, 2, 3 and 4, pressure coefficient and Reynolds number with 20000<Re<75000 over backward facing stepwere investigated. To verify the numerical model, the velocity profile using different turbulence models was compared with experimental values in a sudden expansion. The results showed that RNG k-e turbulent model was selected as the most suitable model to predict recirculation flow over backward facing step. The results of numerical analysis indicated that the reattachment length increase with increasing step angle, expansion ratio and Reynolds number. Also with increasing Reynolds number, when secondary flow is added to 1/3 height of step, the eddy diameters and the length of recirculation flow zone decrease. Moreover, increasing pressure coefficient led to increasing the reattachment length.
Exploring the mystery of soil carbon mineralization: Insights from incubation experiments and kinetic modeling

Soil carbon mineralization is vital for carbon sequestration but affected by factors like soil type and residue quality. Understanding the process and factors is still incomplete, including the interplay between soil properties and organic residues and the need for accurate kinetic models. Research faces significant challenges in describing carbon mineralization dynamics. The present study aimed to investigate carbon mineralization in three soils located in Tamil Nadu, India (S1, S2 and S3) that possess distinct textures. The study also focused on the effects of five different plant residues (Rice, maize, sugarcane, cotton and turmeric) on carbon mineralization in these soils. Incubation experiments were conducted for 150 days, and CO2 evolution was measured at different time intervals of 7, 10, 15, 30, 60, 90, 120 and 150 days. The performance of three kinetic models (Zero order model, exponential kinetic model and first order model) was also evaluated in predicting carbon mineralization using experimental data. The results showed that the rate and extent of carbon mineralization varied significantly among the different soils and residues. The highest carbon mineralization was observed in rice (989.02 µg C/g/day) and maize (966.53 µg C/g/day) residue, while the lowest was in sugarcane (752.09 µg C/g/day) residue. Among the kinetic models, the first-order kinetic model provided the best fit for all treatments (R2=0.98). The findings suggest that soil texture and residue quality play crucial roles in carbon mineralization. The first order kinetic model can be useful for predicting carbon mineralization in different soil-residue systems. These results have implications for managing soil carbon sequestration and mitigating climate change.
Girls Claiming Discursive Space within the Dominant Discourse on Gender Performativity: A Case Study from a Compulsory School in Iceland

ABSTRACT This article investigates how four teenage girls claim discursive space in a compulsory school in Iceland where the dominant discourse sustains traditional gender performances and (cis)heteronormativity. It also examines how the dominant discourse positions the girls and how they resist such positioning and position themselves. The analysis draws on an ethnographic study conducted in a compulsory school, consisting of observations in various spaces therein and interviews with 13–16-year-old students. The findings suggest that Iceland’s reputation as a gender-equality utopia, with a progressive, cutting-edge curriculum, has not fundamentally changed students’ or teachers’ day-to-day realities or lived experiences. That discrepancy manifested in hegemonic ideas in the discourse on gender performativity, which is deeply rooted and reinforced through ((cis)hetero) normative gender performances. The few female students who tried to find cracks in the (cis)heteronormative discourse in order to claim discursive space for alternative gender performances were positioned as being difficult, wilful subjects—as feminist killjoys—for in addressing those cracks they dared to disturb the dominant discourse on legitimate femininity.
Transient Analysis of Heat Transfer by Natural Convection Along a Vertical Wavy Surface

Abstract The problem considered in this paper deal with the transient behavior of heat transfer by natural convection flow of fluid along an infinite vertical heated wavy surface. The governing equations are transformed into dimensionless form and solutions are obtained for the two dimensional flow for both pure (α=0) and uneven surface (α ≠ 0). For pure vertical surface boundary layer equations are solved in the (i) upstream (small τ) (ii) downstream (large τ) and (iii) entire (0<τ<∞) regimes using analytical and numerical techniques. A very good agreement is found when results of above mentioned regimes are compared. Further, for wavy surface solutions are obtained for the entire time regime and results are discussed in terms of average Nusselt number coefficient and isotherms. Numerical results are served to reveal the influence of the physical parameters such as the Prandtl number, Pr, and wavy geometry, α, for the surface conditions.