Miracle-dz/UniFAR-FTUs huggingface dataset:
Characterization and potential upgrading of El-Zaafarana White Sand by Attrition scrubbing.

– White sand deposits are the most widely used non-metallic minerals in various industrial applications, and this explains the significant increase in demand for them, especially in recent years. Almost all countries of the world produce silica sand deposits, but high purity silica sand deposits are produced from a few sites in the world. This is the main reasons for the continuous research studies of the methods used in the treatment of silica sand deposits to match their chemical and physical specifications with industrial requirements. Egypt has many silica sand localities, among these silica sand localities, and the most important is the El-Zaafarana area. Unfortunately, not many studies have been conducted on this region. In our study, Sibelco Egypt Co . supplied samples from that area. Samples are well prepared in order to obtain fully representative sample. In addition, a complete characterization was performed to show the physical, chemical and mineral characteristics of the silica sand deposits occurring in that area. This characterization included a dry sieving analysis of the samples that were prepared, and then the sample was introduced to a mineralogical study to provide more details about the shape and size of the grains and the nature of associated impurities. An X-ray diffraction analysis was performed on the original sample to find out the predominant mineral phases in it. Moreover, an XRF analysis was conducted to accurately determination of the amount of impurities present in the sample and the silica content. A sand sample to Attrition scrubbing process, process on preliminary experiments in order to determine the optimal conditions for process, for a time of min., a speed of rpm, and a solid-to-liquid ratio of whole of the attrition product subjected to wet mechanical sieving and separation on a 25 micron sieve. Fraction of + 25 micron of the attrition product characterized XRF, the - 25 micron fraction and
Numerical analysis of the effects of ultrasonic vibrations and elevated temperature in incremental sheet forming

Incremental sheet forming (ISF) is one of the novel processes practised for more than the last decade in the field of sheet metal forming. ISF, although recognised as a promising manufacturing process over conventional forming, does not give good results in terms of geometrical accuracy, sheet thinning, surface finish and the forming forces. To make the ISF process more efficient, strategies to enhance the forming limits and capabilities are constantly being developed. Two such adaptations to the ISF process are ultrasonic vibration-assisted incremental sheet forming (UVaISF) and elevated temperature incremental sheet forming (ET-ISF). In the present work, investigations have been carried out to compare ISF, UVaISF and ET-ISF on 1 mm thick AA1050 and Titanium Grade 2 sheets with the help of numerical simulations using Abaqus/CAE. Response parameters like stress, strain, thickness distribution, the final shape of the geometry, strain energy, energy dissipated during plastic deformation and the forming forces are evaluated to measure the effectiveness of the processes. It is observed that there is a considerable reduction in the forming forces and spring-back with the UVaISF and ET-ISF processes, in comparison to the ISF at room temperature. This considerable reduction in the forming forces and spring-back is due to the softening behaviour of sheet material and the drop in yield strength during UVaISF and ET-ISF processes. The work overcomes some of the limitations of the ISF process and enlarges the scope of application of the process.
Novel suture/suture-anchor fixation versus tension band wiring for olecranon fractures: A systematic review

Introduction Tension Band Wiring (TBW) has traditionally been the cornerstone of operative management for simple displaced olecranon fractures but its success is limited by high complication rates, mainly related to metalwork irritation and fixation failure. Over the last twelve years, a number of novel fixation methods not involving metalwork have been described in case series (suture fixation, SF and suture-anchor fixation, SAF) with promising early results. In this systematic review, the outcomes of SF and SAF techniques are presented alongside those for TBW for the treatment of closed olecranon fractures without elbow instability. Materials and methods Five databases (Medline, Scholar, Scopus, Prospero and Cochrane) were searched for clinical studies involving TBW/SF/SAF for closed Mayo 1A/1B/2A/2B olecranon fractures from January 2010 onwards. Primary outcomes included overall complication and reoperation rates, as well as the rate of each specific complication. Elbow range of movement, surgeon and patient-reported outcome measures were defined as secondary outcomes. Results Eighteen studies were included, nine of which involved SF/SAF (99 patients) and nine TBW (382 patients). SF/SAF techniques were associated with lower rates of fracture/implant displacement (2% versus 9.7%, p = 0.01), implant irritation (1% versus 30.1%, p < 0.001) and overall complications (8% versus 46.1%, p < 0.001) when compared to TBW. Reoperation rates were lower for SF/SAF (3% versus 37.2%, p < 0.001). Total flexion/extension arc achieved was similar (130.16 ± 2.11 versus 129.45 ± 0.93 degrees). On average, patients regained a functional arc of flexion (135.21 ± 4.81 TBW versus 131.32 ± 12.99 SF/SAF) and extension (1.16 ± 7.54 SF/SAF versus 5.76 ± 7.98 TBW). Conclusion Current evidence suggests that SF/SAF of simple olecranon fractures is a safe and effective alternative to the current gold standard TBW fixation, with preliminary evidence suggestive of lower complication and reoperation rates. Firm conclusions of equivalence or superiority are not possible based on the current poor quality of literature available. Until the outcomes of high-quality prospective studies are available, patients should be carefully counselled that suture methods remain novel and outcomes should be regularly audited.
Changes in Antioxidant and Energy Metabolism Parameters in Men in Ebocha, Niger Delta, Nigeria from Chronic Exposure to Gas Flaring

The impact of pollution due to gas flaring on men native to Ebocha in the Niger Delta Area was investigated. Blood specimens from one hundred (100) apparently healthy men from Ebocha community aged 30 to 50 years were screened. Control blood specimens were obtained from one hundred (100) apparently healthy men from Uturu community [a location with no history of petroleum hydrocarbon (PHC) pollution]. Standard analytical procedures were used to determine the concentrations of antioxidants in blood specimens such as glutathione (GSH), ascorbic acid (AA) and malondialdehyde (MDA). The activities of energy metabolic enzymes such as lactate dehydrogenase (LDH) and glucose-6-phosphate dehydrogenase (G-6-PDH) were also assayed. Results obtained revealed that mean values of concentrations of GSH (3.94±0.18 µmol/l) and AA (94.8±18 µmol/) for men from Ebocha were significantly (p<0.05) lower (4.99±18 mg/dl) and (145.7±23 mg/l) than those of men from Uturu respectively. In contrast, the mean value of MDA concentration for men from Ebocha (4.04±0.38µmol/L) was significantly (p<0.05) higher than that of men (3.30±0.65 µmol/L) from Uturu. The mean activities of LDH (388.5±64 IU/L) for men from Ebocha were significantly (p<0.05) higher than those of men (229.8±25 IU/L) from Uturu. The mean activities of G-6-PDH for men from both Ebocha and Uturu communities were essentially similar. These findings show that GSH, AA, MDA concentrations and LDH activity in the blood specimens of men from Ebocha were altered and it is possibly due to the chronic exposure to gas flaring in Ebocha community.
Investigating the Impact of Outsourcing on IT Flexibility: The Conceptual Independence Perspective

Modern healthcare organizations try to leverage their IT infrastructures to enhance the efficiency of processes and the quality of patient services. The flexibility of the IT infrastructure is a critical factor in the process of establishing strategic and operational value. The authors examine how applied principles of Conceptual Independence (CI) in information systems (IS) influence the flexibility of IT infrastructures. Furthermore, it is presumed that IT outsourcing plays a role in IT flexibility. The second question asks whether IT outsourcing configurations change when CI has been applied or not. Quantitative and qualitative data have been collected in 9 mental healthcare organizations. Findings – based on integration of the data with a mixed-method approach - suggest that the healthcare organizations that apply the principles of CI are better equipped to adapt their IT infrastructure to changing demands, requests and needs. Likewise, results suggest that they have changed the government of IT outsourcing thereby increasing IT flexibility even further.
A new genus of Australian orb-weaving spider with extreme sexual size dimorphism (Araneae, Araneidae)

The new Australian orb-weaving spider genus Mangrovia in the family Araneidae Clerck, 1757 is described. It is characterised by extreme sexual size-dimorphism (eSSD) with females (total length 8–10 mm) ca. 3 to 5 times larger than males (2.5–3 mm). Whilst Mangrovia shares with the informal Australian ‘backobourkiine’ clade a single seta on the male pedipalp patella, the genus is probably more closely related to the ‘zealaraneines’ or associated genera. In addition to eSSD and the single patellar spine, the genus is characterised by a distinct subterminal embolus branch in males. The new genus includes two species: the type species Mangrovia albida (L. Koch, 1871) comb. nov. (= Epeira fastidiosa Keyserling, 1887, new syn.) from Queensland and Mangrovia occidentalissp. nov. from Western Australia. Both species are apparently coastal and occur in mangroves, but also in riparian woodland. Spiders were found resting in rolled-up leaves adjacent to their orb-web.
First-Principles Study on Possible Half-Metallic Ferrimagnetism in Double Perovskites Pb2XX′O6 (X = Ti, Zr, Hf, V, Nb and Ta, X′ = Tc, Ru, Os and Rh)

Pb-based double perovskite compounds with chemical formula Phey have abundant physical properties in the spintronic field. Among all the features, the spin interaction of half-metallic (HM) is regarded as an important performance measure because of its high potential in spintronic devices. In this research study, we calculate density of state (DOS) to investigate possible half-metal candidates by executing structural optimization based on the method of generalized gradient approximation (GGA) and strong correlation effect (GGA + U). Furthermore, following the earlier methods by calculating and comparing energy difference of various compounds with the four initial magnetic states: ferromagnetic, ferrimagnetic, antiferromagnetic and nonmagnetic, we can determine which magnetic state is more stable. Results indicate that there are 13 possible ferrimagnetic HM candidates in these combinations, including Pb2NbTcO6, Pb2TaTcO6, Pb2TiRuO6, Pb2ZrRuO6, Pb2HfRuO6, Pb2VRuO6, Pb2NbRuO6, Pb2TadRuO6, Pb2ZrOsO6, Pb2HfOsO6, Pb2VOsO6, Pb2ZrRhO6 and Pb2HfRhO6 under GGA and GGA + U schemes. The stability of analysis by analyzing the energy gap illustrates that all 13 possible candidates are half metals and ferrimagnetic states, so our studies could provide guidelines for scientists to fabricate new double perovskites in future.
Use of prisms in ophthalmology: a review. Part 2. Use of prisms in heterophoria, nystagmus, and visual nervous system disorders

Prism correction can be helpful not only for patients with strabismus, but also for those with other eye conditions. In heterophoria, especially in the presence of asthenopic complaints, prisms can be used for compensation for latent strabismus and development of fusional reserves. Prisms can reduce an abnormal head posture and thus normalize the posture of a child in jerk nystagmus. Base-out prisms are prescribed to induce divergence and stimulate fusional convergence for decreasing the amplitude of nystagmus and thus improving visual acuity in patients whose nystagmus is suppressed by viewing a near target. In patients whose nystagmus is worse during near viewing, base-in prisms may help which induce divergence. Prisms can be helpful for eliminating diplopia in thyroid eye disease and are used for assessing the Accommodative Convergence to Accommodation (AC/A) ratio. They can be also helpful to shift the image from the affected fovea to the preferred retinal locus in patients with absolute central scotoma and eccentric gaze fixation and to expand visual fields in patients with hemianopia and retinitis pigmentosa. Ophthalmologists should bear in mind that the above conditions can be treated with prisms, and apply prism correction widely in their practice.
Evolution of Combined Arms Tactics in Heterogeneous Multi-Agent Teams

Multi-agent systems research is concerned with the emergence of system-level behaviors from relatively simple agent interactions. Multi-agent systems research to date is primarily concerned with systems of homogeneous agents, with member agents both physically and behaviorally identical. Systems of heterogeneous agents with differing physical or behavioral characteristics may be able to accomplish tasks more efficiently than homogeneous teams, via cooperation between mutually complementary agent types. In this article, we compare the performance of homogeneous and heterogeneous teams in combined arms situations. Combined arms theory proposes that the application of heterogeneous forces, en masse, can generate effects far greater than outcomes achieved by homogeneous forces or the serial use of individual arms. Results from experiments show that combined arms tactics can emerge from simple agent interactions.
Construction of a Risk Model to Predict the Prognosis and Immunotherapy of Low-Grade Glioma Ground on 7 Ferroptosis-Related Genes

Purpose Ferroptosis is closely associated with tumors. The purpose of this study was to investigate the correlation between ferroptosis and prognosis of low grade glioma (LGG) via construction and verification of a risk model. Patients and Methods The data of LGG were downloaded from public databases. Through LASSO analysis of characteristic genes, a gene signature was constructed. Patients into were divided two groups based on risk score. Subsequently, survival, clinical phenotype, functional enrichment, immune cell infiltration and somatic mutation analysis were performed. In addition, whether ferroptosis-related genes (FRGs) signature can predict the patient’s response to anti-PD-1/PD-L1 immunotherapy was also investigated. Results FRGs signature had strong prognostic assessment ability, and high risk score was associated with poor overall survival (OS) of LGG. The high risk score group had higher degree of immune cell infiltration, stronger stromal activity, higher immune score, and high expression of immune checkpoint. In low risk score group anti-PD-1/PD-L1 immunotherapy has significant therapeutic advantages and clinical response. Genes and frequency of somatic mutations and clinical phenotypes in the high and low risk score groups were significantly different. Conclusion A prognostic model based on 7 FRGs can be used to predict the prognosis and immunotherapeutic response of LGG.
Perception of amplitude modulation with single or multiple channels in cochlear implant users

Cochlear implants (CIs) are able to restore hearing to many deaf individuals. Contemporary CIs work by converting acoustic signals into pulse trains of electric current delivered to the implanted electrodes. These pulse trains are amplitude-modulated by the changes in energy over time associated with the input signal. CI users’ perception of amplitude modulation (AM) relates strongly to speech perception. However, perception of AM might be quite different when delivered to a single electrode (as in most previous studies) or to multiple electrodes (as in this thesis). We studied tow forms of AM perception: 1) AM detection (sensitivity to changes in amplitude over time relative to steady pulse trains), and 2) AM discrimination (sensitivity to changes In AM frequency for modulated pulse trains). In clinical fitting of CIs, current levels on single electrodes must often be reduced to accommodate multi-electrode stimulation (“multi-channel loudness summation”). We found that these current level reductions may worsen multi-electrode AM detection, relative to AM detection on an equally loud single electrode. However, these current level reductions did not affect multi-electrode AM discrimination, where performance was similar between equally loud single- and multi-electrode stimuli. When different AM information was delivered to multiple electrodes, AM discrimination depended on the spacing of electrodes. When electrodes were closely spaced, CI listeners were very sensitive to differences in AM information delivered to the multiple channels. The results suggest that loudness summation and spacing of electrodes may greatly affect AM perception with multiple electrodes.
Do scoring techniques and number of choices affect the reliability of multiple-choice tests in elementary schools?

The application of multiple-choice tests often does not consider the scoring technique and the number of choices. The study aims at describing the effect of the scoring technique and numerous options towards the reliability of multiple-choice objective tests on social subjects in elementary school. The study is quantitative research with experiments using factorial design. The population of the study was all the items of the standard of multiple-choice objective test through the test development procedure. The sample of the study was part of the items taken randomly through repeated simulations. Data collection was participants’ scores taken from the test and repeated simulations 120 times for the analysis. Data were analysed in descriptive quantitative and inferential through the analysis of variance. The results of the study reveal that there is an interaction between scoring technique and numerous options towards the reliability of multiple-choice objective tests on social subjects in elementary school. Keywords: Scoring technique, numerous options, test reliability, multiple-choice, elementary schools.
Measuring “pain load” during general anesthesia

Abstract Introduction Functional near-infrared spectroscopy (fNIRS) allows for ongoing measures of brain functions during surgery. The ability to evaluate cumulative effects of painful/nociceptive events under general anesthesia remains a challenge. Through observing signal differences and setting boundaries for when observed events are known to produce pain/nociception, a program can trigger when the concentration of oxygenated hemoglobin goes beyond ±0.3 mM from 25 s after standardization. Method fNIRS signals were retrieved from patients undergoing knee surgery for anterior cruciate ligament repair under general anesthesia. Continuous fNIRS measures were measured from the primary somatosensory cortex (S1), which is known to be involved in evaluation of nociception, and the medial polar frontal cortex (mPFC), which are both involved in higher cortical functions (viz. cognition and emotion). Results A ±0.3 mM threshold for painful/nociceptive events was observed during surgical incisions at least twice, forming a basis for a potential near-real-time recording of pain/nociceptive events. Evidence through observed true positives in S1 and true negatives in mPFC are linked through statistically significant correlations and this threshold. Conclusion Our results show that standardizing and observing concentrations over 25 s using the ±0.3 mM threshold can be an arbiter of the continuous number of incisions performed on a patient, contributing to a potential intraoperative pain load index that correlates with post-operative levels of pain and potential pain chronification.
Soil bacterial communities triggered by organic matter inputs associates with a high-yielding pear production

Abstract. The roles of microorganisms in enhancing crop production have been demonstrated for a range of cropping systems. Most studies to date, however, have been confined to a limited number of locations, making it difficult to identify general soil biotic and abiotic characteristics underpinning the yield-promotion across various locations. This knowledge gap limits our capacity to harness soil microbiome to improve crop production. Here we used high-throughput amplicon sequencing to investigate the common features of bacterial community composition, ecological networks and physicochemical properties in six yield-invigorating and adjacent yield-debilitating orchards. We found that yield-invigorating soils exhibited higher contents of organic matter than yield-debilitating soils and harbored unique bacterial communities. Greater alpha diversity and higher relative abundances of Planctomycetota and Chloroflexota were observed in yield-debilitating soils. Co-occurrence network analysis revealed that yield-invigorating soils displayed a greater number of functionally interrelated modules (meta-modules) and a higher proportion of negative links to positive links. Chloroflexota was recognized as a keystone taxon in manipulating the interaction of bacterial communities in yield-invigorating soils. Altogether, we provide evidence that yield-invigorating soils across a range of locations appear to share common features, including accumulation of soil organic matter, higher microbial diversity, enrichment of key taxa like Chloroflexota and maintaining a competitive network. These findings have implications for science-based guidance for sustainable food production.
Time synchronization of electric field measurement and highspeed video registration at the lightning observation station in Rzeszow, Poland

Time synchronization is one of the most difficult tasks during the registration of lightning phenomena. Precise synchronization helps to identify particular strokes with data from commercial lightning location systems. This paper is aimed to present and analyze GPS synchronized recordings of the lightning electric field from the lightning observation station installed at the Rzeszow University of Technology, Poland. Synchronization with UTC was achieved by the simultaneous analysis of the electric field waveforms and the signal from the GPS receiver. Several improvements were made regarding synchronization and triggering of the system. For this purpose a set of functions in Matlab has been prepared. In order to explain used algorithms, lightning electric field waveforms and the GPS signal were analyzed simultaneously. Performance of the optical trigger was verified in high voltage laboratory. Results showed a good performance of this technique and suggested to use it during the high-speed camera and DSLR registration. Streszczenie. Synchronizacja czasowa jest jednym z najtrudniejszych zadań podczas rejestracji zjawisk piorunowych. Precyzyjna synchronizacja zapewnia możliwość precyzyjnej identyfikacji poszczególnych wyładowań z danymi komercyjnych systemów lokalizacji wyładowań atmosferycznych. Celem artykułu jest przedstawienie i analiza przebiegów piorunowego pola elektrycznego zarejestrowanych na stacji obserwacji wyładowań atmosferycznych Politechniki Rzeszowskiej. W pracy opisano najnowsze modyfikacje systemu w kontekście synchronizacji czasowej oraz wyzwalania procesu rejestracji. W tym celu przygotowano zestaw funkcji w programie Matlab. Synchronizację z UTC wyjaśniono poprzez jednoczesną analizę przebiegów pola elektrycznego oraz sygnału z odbiornika GPS. Dokonano weryfikacji pracy optycznego wyzwalacza rejestracji. Testy przeprowadzono w laboratorium wysokich napięć. Rezultaty badań uwidoczniły dobre parametry wyzwalacza optycznego i wskazały na możliwość zastosowania tej techniki podczas rejestracji szybką kamerą oraz aparatem fotograficznym. (Synchronizacja czasowa pomiaru pola elektrycznego oraz wideo-rejestracji na stacji obserwacji wyładowań atmosferycznych w Rzeszowie, Polska).