Miracle-dz/UniFAR-FTUs huggingface dataset:
A characteristic oxygen abundance gradient in galaxy disks unveiled with CALIFA

We present the largest and most homogeneous catalog of H ii regions and associations compiled so far. The catalog comprises more than 7000 ionized regions, extracted from 306 galaxies observed by the CALIFA survey. We describe the procedures used to detect, select, and analyze the spectroscopic properties of these ionized regions. In the current study we focus on characterizing of the radial gradient of the oxygen abundance in the ionized gas, based on the study of the deprojecteddistribution of H ii regions. We found that all galaxies without clear evidence of an interaction present a common gradient in the oxygen abundance, with a characteristic slope of α_O/H = −0.1 dex/r_e between 0.3 and 2 disk effective radii (r_e), and a scatter compatible with random fluctuations around this value, when the gradient is normalized to the disk effective radius. The slope is independent of morphology, the incidence of bars, absolute magnitude, or mass. Only those galaxies with evidence of interactions and/or clear merging systems present a significantly shallower gradient, consistent with previous results. The majority of the 94 galaxies with H ii regions detected beyond two disk effective radii present a flattening in the oxygen abundance. The flattening is statistically significant. We cannot provide a conclusive answer regarding the origin of this flattening. However, our results indicate that its origin is most probably related to the secular evolution of galaxies. Finally, we find a drop/truncation of the oxygen abundance in the inner regions for 26 of the galaxies. All of them are non-interacting, mostly unbarred Sb/Sbc galaxies. This feature is associated with a central star-forming ring, which suggests that both features are produced by radial gas flows induced by resonance processes. Our result suggests that galaxy disks grow inside-out, with metal enrichment driven by the local star formation history and with a small variation galaxy-by-galaxy. At a certain galactocentric distance, the oxygen abundance seems to be correlated well with the stellar mass density and total stellar mass of the galaxies, independently of other properties of the galaxies. Other processes, such as radial mixing and inflows/outflows seem to have a limited effect on shaping of the radial distribution of oxygen abundances, although they are not ruled out.
Smile! Studying expressivity of happiness as a synergic factor in collaborative information seeking

It is commonly expected that collaborative work will lead to better results than working individually. It has been demonstrated by some that teamwork is more than adding together the product of individual work, though this may depend on various factors such as time, space, the tasks or activities nature, as well as team members' personalities. To date, little is known about the specific elements that contribute to this synergic effect; however, some have argued that emotions, in particular positive ones, may have a fundamental role in teamwork. In this paper we take a closer look at users' smiles – as a way of expressing happiness- by studying how they participate in the information search process of both individuals and teams. We present a user study involving 30 participants (10 pairs and 10 individuals) and show how smiling contributes to the overall experience of team members as well as their performance in an exploratory search task with respect to individual seekers. Our results indicate that smiling is significantly more prominent in participants working together synchronously than those working individually and that smiling may contribute to particular dimensions of information coverage.
Hydroxyurea Can Reduce or Eliminate Transfusion Requirements in Children with Major and Intermediate Thalassemia

Results: All the patients tolerated HU well and showed a dramatic response to the drug. Nine of 20 intermediate and 8 of 71 major patients became completely transfusion free. In 6 intermediate and 15 major patients, transfusion interval prolonged more than 50%. After treatment, 95% of intermediate and 81% of major patients described an increase in social activity. HU therapy was also associated with a marked decrease in serum ferritin level in major thalassemia patients. Conclusion: HU may be administered in thalassemia major and intermediate patients to minimize or obviate the need for regular transfusion and concomitant iron overload. HU therapy appears to be safe and effective when administrated in thalassemia patients.
Adsorption and catalytic oxidation of asphaltenes in fumed silica nanoparticles: Effect of the surface acidity

This study aims to evaluate the effect of surface acidity of fumed silica nanoparticles in adsorption and subsequent thermal cracking of Colombian asphaltenes. The acidities of the surfaces were established through Temperature Programed Desorption (TPD) experiments. The adsorption equilibrium of asphaltenes was determined using a static batch method, and the data obtained was fitted using the Langmuir model, the Freundlich model and the SLE Model. Asphaltenes catalytic oxidation experiments were conducted, and it was found that this process was surface nature dependent. In all cases, the temperature of asphaltenes oxidation was reduced regarding the virgin asphaltene sample. The effective activation energies were estimated with the iso-conversional OFW method. This energy was found to be related to adsorption affinity and asphaltenes self-association on nanoparticles surface.
Comfort-Aware Building Climate Control Using Distributed-Parameter Models.

Controlling Heating, Ventilation and Air Conditioning (HVAC) system to maintain occupant's indoor thermal comfort is important to energy-efficient buldings and the development of smart cities. In this paper, we formulate a model predictive controller (MPC) system to estimate indoor climate and apartment's geometric information based on only thermostats, and then make optimal control strategies to HVAC in order to maintain occupant's comfort by predicted mean vote index. In order to have accurate spatial resolution and make the HVAC system focus on only a zoned area around the occupant, a convection-diffusion Computer Fluid Dynamics (CFD) model is used to describe the indoor air flow and temperature distribution. The MPC system generates corresponding PDE-contrained optimization problems, and we solve them by obtain the gradients of cost functions with respect to problems' variables with the help of CFD model's adjoint equations. We evaluate the performance of our method using simulations of a real apartment in the St.\ Louis area. Our results show our MPC system's energy efficiency and the potential for its application in real-time operation of high-performance buildings.
Burnout among Critical Care Nurses in King Saud Medical City (KSMC)

Background: Burnout has been defined as an occupation stress, result of continues and long-term stress exposure, particularly related to King Saud Medical City (KSMC) in Saudi Arabia. Of burnout among critical care nurses at King Saud Medical City (KSMC) in Saudi Arabia has not been explored in previous research. Psychosocial factor at work. Burnout has significant effect on patient care and nursing performance. Objective: This study aims to explore level of burnout among critical care nurses at King Saud Medical City (KSMC) in Saudi Arabia-Riyadh Methods: A descriptive cross sectional design was utilized using a self-reporting questionnaire two sections contain demographic and Meslach burnout inventory (MBI) tool, obtain information from ICU nurses about level of burnout by measuring emotional exhaustion, personal accomplishment and depersonalization. The questionnaire was distributed to 300 nurses employed in King Saud Medical City (KSMC), which is one of the biggest tertiary hospitals in Riyadh, Saudi Arabia. 270 nurses responded to the questionnaire (90% response rate). Results and conclusion: The results showed sever level prevalence 65.9% of burnout among critical care nurses at King Saud Medical City (KSMC) in Saudi Arabia-Riyadh. Simple random method from four critical care department T1A1, T1A2, T1B1 and TRCU. The majority of the nurses were females, where (97%), median age 30.9- year, majority of staff (82.2%) their age range 25 yr -34 yr, around 60% married, 81.5% bachelor degree. Most of sample were staff nurse78.5%, staff selected in 68.5% of sample experience less 5 yr in hospital and their total ICU experience 48.5%. More than 5 year and less than 10 yr. 85.9% of them don’t have any medical illness. 56.3% of sample they are not satisfy about their salaries most of them complain from non-financial reason. 67% of them satisfy about 12 h duty most Of them less than 5 year experience in KSMC but nurses more than 5yr they prefer return to 8 hrs. Shift they bind this with ICU workload.
L1 Transfer among Arab ESL Learners: Theoretical Framework and Practical Implications for ESL Teaching

The study investigates common instances of incorrect usage of English sounds and words caused by interference. L1 interference research is an integral part of Applied Linguistics and its implications can be found in any foreign language classroom but we focus our attention here on Arab ESL students’ production of English. The study examines multiple examples of spoken and written interferences in light of recent theoretical framework. The paper recommends ESL teachers to explicitly address these types of errors in order to make students aware of errors they commit due to interference.
When are metal complexes bioavailable

Environmental context The concentration of a free metal cation has proved to be a useful predictor of metal bioaccumulation and toxicity, as represented by the free ion activity and biotic ligand models. However, under certain circumstances, metal complexes have been shown to contribute to metal bioavailability. In the current mini-review, we summarise the studies where the classic models fail and organise them into categories based on the different uptake pathways and kinetic processes. Our goal is to define the limits within which currently used models such as the biotic ligand model (BLM) can be applied with confidence, and to identify how these models might be expanded. Abstract Numerous data from studies over the past 30 years have shown that metal uptake and toxicity are often best predicted by the concentrations of free metal cations, which has led to the development of the largely successful free-ion activity model (FIAM) and biotic ligand model (BLM). Nonetheless, some exceptions to these classical models, showing enhanced metal bioavailability in the presence of metal complexes, have also been documented, although it is not yet fully understood to what extent these exceptions can or should be generalised. Only a few studies have specifically measured the bioaccumulation or toxicity of metal complexes while carefully measuring or controlling metal speciation. Fewer still have verified the fundamental assumptions of the classical models, especially when dealing with metal complexes. In the current paper, we have summarised the exceptions to classical models and categorised them into five groups based on the fundamental uptake pathways and kinetic processes. Our aim is to summarise the mechanisms involved in the interaction of metal complexes with organisms and to improve the predictive capability of the classic models when dealing with complexes.
Control of Synchronization Regimes in Networks of Mobile Interacting Agents

How do we get in sync with each other? Through various sorts of feedback. Swarms of mobile pulse-coupled agents (such as robots) exhibit distinct synchronization regimes, which can be controlled by tuning the velocity of the agents, or their interaction rules, as the authors show. Between slow and fast speeds lurks an intermediate zone where lock-step behavior can be impeded---possibly on purpose, depending on an application's goals.
Plantago Ovata Efficiency in Elimination of Water Turbidity

Coagulation and flocculation are the most important processes in water treatment plants. Nowadays, in Iran, coagulants which have the most usage in water treatment are Aluminum Sulphate (Alum) and Ferric Chlo-ride. Using synthetic coagulants are not economical and useful for health in developing countries. The aim of this research is to survey and compare the Ferric Chloride coagulant function and this coagulant accompany with Plantago ovata coagulant aid under variable pH for eliminating of water turbidity. This study was performed in lab scale for water containing artificial turbidity of clay. The experiments were done in three turbidity ranges 100, 50, 20 NTU and two ranges of pH 7 and 8. The amount of Ferric Chloride in all experiments were 10 ppm and P.ovata extarct in optimum concentration for turbidity of 100, 50, 20 NTU was 0.2 ppm, 0.1 ppm and 0.04 ppm respectively. The optimum pH was 7. Using P.ovata co-agulant aid in turbidity 100, 50, 20 NTU can eliminate 94.1, 94.5, 88.15 percent of above turbidities, while using Ferric Chloride coagulant alone in optimum pH can eliminate 90.3, 85.16, 80.2 percent of the turbid-ities mentioned above. Results show that P.ovata extract is less efficient in high turbidities when used as a coagulant aid. Plantago ovata, as a coagulant aid, showed positive influence on turbidity removal from water. In addition, optimized pH showed important role in reducing turbidity.
Near-future level of CO2-driven ocean acidification radically affects larval survival and development in the brittlestar Ophiothrix fragilis

The world's oceans are slowly becoming more acidic. In the last 150 yr, the pH of the oceans has dropped by ~0.1 units, which is equivalent to a 25% increase in acidity. Modelling pre- dicts the pH of the oceans to fall by 0.2 to 0.4 units by the year 2100. These changes will have signif- icant effects on marine organisms, especially those with calcareous skeletons such as echinoderms. Little is known about the possible long-term impact of predicted pH changes on marine invertebrate larval development. Here we predict the consequences of increased CO2 (corresponding to pH drops of 0.2 and 0.4 units) on the larval development of the brittlestar Ophiothrix fragilis, which is a key- stone species occurring in high densities and stable populations throughout the shelf seas of north- western Europe (eastern Atlantic). Acidification by 0.2 units induced 100% larval mortality within 8 d while control larvae showed 70% survival over the same period. Exposure to low pH also resulted in a temporal decrease in larval size as well as abnormal development and skeletogenesis (abnormali- ties, asymmetry, altered skeletal proportions). If oceans continue to acidify as expected, ecosystems of the Atlantic dominated by this keystone species will be seriously threatened with major changes in many key benthic and pelagic ecosystems. Thus, it may be useful to monitor O. fragilis populations and initiate conservation if needed.
THE DISTRIBUTION OF RARE-EARTH ELEMENTS IN K-FELDSPAR AS AN INDICATOR OF PETROGENETIC PROCESSES IN GRANITIC PEGMATITES: EXAMPLES FROM TWO PEGMATITE FIELDS IN SOUTHERN NORWAY

The K-feldspar from strongly zoned gadolinite-type REE–Nb–Ta-rich granitic pegmatites from the Evje–Iveland and Froland pegmatite fields in southern Norway was analyzed for the entire spectrum of rare-earth elements, as well as for a suite of majo r and trace elements, with the HR–LA–ICP–MS technique. Earlier results imply that the two pegmatite fields are nearly indistinguishable in terms of their origin and igneous evolution. An evaluation of the distribution of K, Rb, Sr and Ba in Kfeldspar, elements that are strongly sensitive to igneous processes in felsic rocks, confirm this conclusion. However, the distribution of the ultra-trace elements, and particularly the REE, in K-feldspar is incompatible with a common origin of the two fields. The REE distribution in K-feldspar is buffered by the coexisting REE-phases. When compared to Evje–Iveland, the Froland suite of pegmatites was derived from a relatively LREE-deficient and HREE-enriched parent melt. Finally, the distribution of trace elements in feldspar implies that the Evje–Iveland pegmatites formed from progressively more differentiated melts that were emplaced in a southward-propagating system of vertical and horizontal faults and fractures.
Intimal hyperplasia following implantation of helical-centreline and straight-centreline stents in common carotid arteries in healthy pigs: influence of intraluminal flow

Intimal hyperplasia (IH) is a leading cause of obstruction of vascular interventions, including arterial stents, bypass grafts and arteriovenous grafts and fistulae. Proposals to account for arterial stentassociated IH include wall damage, low wall shear stress (WSS), disturbed flow and, although not widely recognized, wall hypoxia. The common non-planarity of arterial geometry and flow, led us to develop a bare-metal, nitinol, self-expanding stent with three-dimensional helical-centreline geometry. This was deployed in one common carotid artery of healthy pigs, with a straightcentreline, but otherwise identical (conventional) stent deployed contralaterally. Both stent types deformed the arteries, but the helical-centreline device additionally deformed them helically and caused swirling of intraluminal flow. At sacrifice, one month post stent deployment, histology revealed significantly less IH in the helical-centreline than straight-centreline stented vessels. Medial cross-sectional area was not significantly different in helical-centreline than straight-centreline stented vessels. By contrast, luminal cross-sectional area was significantly larger in helical-centreline than straight-centreline stented vessels. Mechanisms considered to account for those results include enhanced intraluminal WSS and enhanced intraluminal blood–vessel wall mass transport, including of oxygen, in the helical-centreline stented vessels. Consistent with the latter proposal, adventitial microvessel density was lower in the helical-centreline stented than straight-centreline stented vessels.
Thermodynamics and phase diagram calculations in II-VI and IV-VI ternary systems using an associated solution model

2014 The thermodynamic properties and the T-x phase diagrams for liquid-solid equilibrium in II-VI and IV-VI ternary systems are described by a regular associated liquid solution model derived from that used by Jordan for ZnTe and CdTe and by the regular approximation for the solid solution. For the pseudo-binary systems exhibiting miscibility in both phases and monotonic variation of the liquidus and solidus curves, a general expression is obtained. It is independent of the interactions in the liquid, and is the same as for ideal non associated liquids. In the calculation of the ternary T-x phase diagrams five parameters are needed : the two interaction parameters 03B11, 03B12, the two coefficients of dissociation, 03B21, 03B22, obtained from the respective binary liquidus, and the interaction parameter W in the solid, derived from the pseudo-binary phase diagrams. Good agreement with experimental data is obtained for the pseudo-binary systems : ZnTe-CdTe, ZnTe-HgTe, ZnSe-ZnTe, CdTe-HgTe, CdTe-CdSe, HgTe-HgSe, PbSe-PbTe, PbTe-SnTe, and for the ternary systems : Zn-Cd-Te and Pb-Sn-Te. The theory is especially suited for the case 03B2 ~ 0 and 03B1 is small. It is applied to the calculation of the chalcogen-rich part of the ternary systems : Cd-Hg-Te and Cd-Se-Te. REVUE DE PHYSIQUE APPLIQUÉE TOME 8, SEPTEMBRE 1973, PAGE
Subword-level Composition Functions for Learning Word Embeddings

Subword-level information is crucial for capturing the meaning and morphology of words, especially for out-of-vocabulary entries. We propose CNN- and RNN-based subword-level composition functions for learning word embeddings, and systematically compare them with popular word-level and subword-level models (Skip-Gram and FastText). Additionally, we propose a hybrid training scheme in which a pure subword-level model is trained jointly with a conventional word-level embedding model based on lookup-tables. This increases the fitness of all types of subword-level word embeddings; the word-level embeddings can be discarded after training, leaving only compact subword-level representation with much smaller data volume. We evaluate these embeddings on a set of intrinsic and extrinsic tasks, showing that subword-level models have advantage on tasks related to morphology and datasets with high OOV rate, and can be combined with other types of embeddings.
Integrating Community Services and Research: A Livelihood Needs Assessment at the Countryside of the Philippines

This study assessed the integration of community services and research through the livelihood needs assessment of a countryside in the Philippines particularly Sitio Malanas, Lettac Sur, Santol, La Union as basis of the actions in addressing the needs. Specifically, the livelihood situation and needs were determined and proposed actions for the improvement of the livelihood situation of the community. Thirty five members of the community participated in the research. A focused group discussion was utilized in gathering the data. The residents of the community were found to be engaged in farming, sold agricultural products, and had only three variety stores getting its supplies from other places. They encountered livelihood problems mostly related to marketing and transportation. They wanted additional livelihood program, to improve sales, and be provided with seminar-workshops on business-related activities. The findings show that there is a need for a program to improve their livelihood needs. It is recommended that actions have to be taken for the improvement of the livelihood situation of the community in cooperation with the local government unit and the school extending relevant community services based on research. Keywords: Integrating community services and research, livelihood situation, livelihood needs, proposed actions
Growth Performance of One Year Old Seedlings of Ironwood (Eusideroxylon zwageri Teijsm. & Binn.) Varieties

Four Eusideroxylon zwageri Teijsm. & Binn. varieties had been described. A study on growth performance of one-year old seedlings of E. zwageri varieties had been conducted to study the comparison of shoot growth performance and survival among E. zwageri varieties. The varieties were exilis, grandis, ovoidus, and zwageri. The study was conducted in Jambi, Indonesia for one year using complete randomized design. Four E. zwageri varieties were used as factor with 6 replications. Each consists of 6 seedlings therefore, the total number of seedlings were 144. The results showed that survival and shoot growth performance of E. zwageri seedlings were significantly different among varieties. Stem height of E. zwageri seedlings was significantly different among some varieties. The results related to stem diameter showed different characteristics among E. zwageri seedlings, zwageri variety had the biggest diameter. It was significantly different from ovoidus and exilis, but not significantly different from grandis. The differences among E. zwageri seedlings in shoot dry weight parameter were identical to the parameter of stem diameter. The lowest value of branch angle belonged to zwageri. Based on Duncan multiple range test, it was significantly different from other varieties except grandis. Generally, zwageri shows the best growth performance among seedlings of E. zwageri varieties.