Miracle-dz/UniFAR-FTUs huggingface dataset:
ON COGNITIVE LOAD

The existing studies on 3D teaching animation only focus on the technical aspects, failing to consider psychological factors like the cognitive load. To bridge the gap, this paper explores the relationship between animation design and psychological cognition. The design of 3D teaching animation was analysed based on the principle of learner centrism and the cognitive load theory. Then, the influencing factors of the learner’s cognitive load in 3D animation design were identified, and the principles of the design were summed up as necessity, guiding thinking, concise presentation, adjacent presentation, and speed. On this basis, the author designed a 3D teaching animation, and verified the effectiveness of the animation through a control experiment. During the experiment, two parallel classes were taught with our 3D teaching animation, and with natural learning, respectively. The two classes were compared in terms of cognitive load and learning effect. The results show that our 3D teaching animation can greatly improve the cognitive load of the students. This research provides important guidance on the design of teaching animation based on cognitive psychology.
S0884291419002930 720..731

Role of oligomer structures in the surface chemistry of amidinatemetal complexes used for atomic layer deposition of thin films Jonathan Guerrero-Sánchez, Bo Chen, Noboru Takeuchi, Francisco Zaera Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, Ensenada, Baja California 22800, México Department of Chemistry, University of California, Riverside, California 92521, USA Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, Ensenada, Baja California 22800, México; and Department of Chemistry, University of California, Riverside, California 92521, USA Address all correspondence to this author. e-mail: zaera@ucr.edu Received: 11 July 2019; accepted: 3 September 2019
S100 (cid:97) and S100 (cid:98) Proteins in Human Cutaneous Sensory Corpuscles: Effects of Nerve and Spinal Cord Injury

S100 protein in the vertebrate peripheral nervous system consists of homo- or heterodimers of S100 (cid:97) and S100 (cid:98) proteins, the ﬁrst predominating in neurons and the second in glial cells. Recently, however, occurrence of S100 (cid:98) protein in neurons has been reported. The expression of S100 protein by Schwann cells, as well as their derivatives in sensory corpuscles, depends on the sensory axon (i.e., the Schwann cell–axon contact). The present study analyzed the distribution of S100 (cid:97) and S100 (cid:98) proteins in human cutaneous sensory corpuscles and the effects of peripheral or central sensory axon severance in the expression of these proteins. Simple or double immunohistochemistry was carried out using a panel of antibodies against S100 (cid:97) , S100 (cid:98) or S100 (cid:97)(cid:49)(cid:98) proteins, and the sections were examined by light or laser confocal scanning microscopy. Skin samples were obtained from normal subjects and patients with spinal cord injury, nerve entrapment, and nerve sections plus graft. The lamellar cells of Meissner corpuscles as well as the inner-core lamellae of the Pacinian corpuscles displayed strong immunoreactivity (IR) for all antigens examined, the most intense labeling being obtained for S100 (cid:98) protein. The pattern of immunostaining was unchanged after spinal cord injury, whereas the number of stained corpuscles as well as the intensity of IR for each antigen decreased in cutaneous sensory corpuscles after nerve injury, both entrapment and section plus graft. No evidence was found of axonal labeling.The present results provide evidence that Schwann-related cells in human cutaneous sensory corpuscles contain both S100 (cid:97) and S100 (cid:98) and that the expression of these proteins is dependent on the functional and structural integrity of sensory ﬁbers. Anat. Rec. 251:351–359, 1998.
G-Brownian Motion and Dynamic Risk Measure under Volatility Uncertainty

We introduce a new notion of G-normal distributions. This will bring us to a new framework of stochastic calculus of Ito's type (Ito's integral, Ito's formula, Ito's equation) through the corresponding G-Brownian motion. We will also present analytical calculations and some new statistical methods with application to risk analysis in finance under volatility uncertainty. Our basic point of view is: sublinear expectation theory is very like its special situation of linear expectation in the classical probability theory. Under a sublinear expectation space we still can introduce the notion of distributions, of random variables, as well as the notions of joint distributions, marginal distributions, etc. A particularly interesting phenomenon in sublinear situations is that a random variable Y is independent to X does not automatically implies that X is independent to Y. Two important theorems have been proved: The law of large number and the central limit theorem.
Does supplementation of vitamin C, reduced glutathione or their association in semen extender reduce oxidative stress in bovine frozen semen?

The aim of this study was to evaluate the addition of vitamin C, reduced glutathione and the association thereof to the bovine semen cryopreservation extender. The ejaculate from nine bulls were divided into four fractions, each corresponding to a treatment, namely: control group–semen diluted with Tris-yolk extender; vitamin C group–semen diluted in Tris-yolk extender supplemented with vitamin C (2.5mmol/mL); glutathione group-semen diluted in Tris-yolk extender supplemented with reduced glutathione (2.5mmol/mL) and associated group-semen diluted in Tris-yolk extender supplemented with vitamin C (1.25mmol/mL) and reduced glutathione (1.25mmol/mL). Afterwards, the semen was packed into French straws and submitted to cryopreservation using automated equipment. After cryopreservation, the semen was thawed and evaluated considering sperm motility, morphology, plasma membrane, acrosome, mitochondrial potential and oxidative stress, as well as the thermo resistance test. Extender’s supplementation with the association of vitamin C and reduced glutathione showed benefic effects on sperm motility and preservation of plasma and acrosomal membranes during semen cryopreservation, being also the group that showed higher values of reactive oxygen species. Thus, the association of both antioxidants contributed to the preservation of sperm cells in every analyzed characteristic, suggesting its use on bovine semen cryopreservation.
The Integrals of Motion for the Deformed Virasoro Algebra

We explicitly construct two classes of infinitly many commutative operators in terms of the deformed Virasoro algebra. We call one of them local integrals and the other nonlocal one, since they can be regarded as elliptic deformations of the local and nonlocal integrals of motion obtained by V.Bazhanov, S.Lukyanov and Al.Zamolodchikov.
Microstructure and Thermoelectric Properties of p-type Si80Ge20B0.6-SiC Nanocomposite

P-type silicon germanium (SiGe) alloys, Si80Ge20B0.6, with homogeneously dispersed SiC nanoparticles were prepared by ball milling and subsequent spark plasma sintering. The influence of grain size reduction of SiGe matrix and SiC nanoparticle dispersion on electrical and thermal transport properties were investigated. A significant reduction in lattice thermal conductivity is achieved by a more pronounced grain boundary scattering of phonons introduced by grain size reduction after ball milling. Dispersing SiC nanoparticles in the Si80Ge20B0.6 matrix effectively reduces the conduction of heat by providing additional phonon scattering centers. A dimensionless figure-of-merit (ZT) of 0.62 at 1000 K is obtained in nanostructuring Si80Ge20B0.6 incorporated with only 0.5vol% SiC nanoparticles, which is 17% higher than the parent Si80Ge20B0.6 matrix and about 30% higher than p-type SiGe alloy used in the radioisotope thermoelectric generator in space missions.
Comparison of surgical infection rates after implementation of a safety checklist

Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil. Ernesto Dornelles Hospital, Porto Alegre, RS, Brazil. Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brazil. Confl icts of interest: there are no confl icts of interest to declare. Abstract Objective: To compare surgical site infection rates in clean surgery before and after implementation of the checklist proposed by the World Health Organization. Methods: Observational, descriptive, retrospective correlational study performed in a general hospital. Sample consisting of 15,319 records of clean surgeries monitored by the hospital Infection Prevention and Control Service, in the trauma, orthopedics, cardiovascular, plastic, general, and urology specialties. Before implementing the checklist, 5,481 records were evaluated; 9,838 records were reviewed after. Analysis was performed with SPSS 22.0 software and application of the Pearson’s chi-square test, considering p <0.05. Results: The overall infection rate in clean surgery was 4.17% in the pre-implementation period of the checklist and 1.10% post-implementation (p<0.05), with statistically signifi cant reductions in spine, aneurysm and bypass, abdominoplasty, mammoplasty, herniorrhaphy and prostatectomy surgeries. Conclusion: A signifi cant reduction was identifi ed in the rate of surgical site infection in clean surgeries when comparing the preand postimplementation periods of the checklist proposed by the World Health Organization.
Exploring Cells and Context Approaches for RNN Based Conversational Agents

Natural Language Processing is a challenging field within Artificial Intelligence, and building bots and conversational agents have been pursued by many researchers over the last decades. These agents should output reasonable responses, based on user inputs. In this thesis, we give an introduction on how to create conversational agents based on the current state-of-the-art, using Recurrent Neural Networks (RNN). We delve into di↵erent RNN architectures and compare the quality of the outputs from nine distinct agents. The baseline is an Encoder-Decoder model using Long Short-Term Memory (LSTM) cells, which is fed with question-response pairs. We compare it with models consisting of other RNN cells and explore different approaches that take the context of the entire conversation into account. To evaluate the models, we trained them on two di↵erent datasets. Five models were trained on the Ubuntu Dialogue Corpus (UDC), whereas four were trained on the OpenSubtitles dataset. The UDC is a closed domain dataset which is suitable when we aim for a beneficial conversational agent for a specific area. The OpenSubtitles dataset, on the other hand, is an open domain dataset and is used to capture how well the models handle chit-chatting (casual conversations and small talk). To feed the models with proper training data, we propose a procedure which preprocesses the data in four steps. One of the advantages of this preprocessing procedure is the removal of unknown tokens. This means that the training data only consists of words that exist in the conversational agents’ vocabulary. The results indicate that the use of Grid LSTM cells improve the quality of the responses for the chitchatting task and that the use of a context-based model generates responses which reflect the topic of the conversation.
Dark matter annihilation and the PAMELA, FERMI, and ATIC anomalies

If dark matter annihilation accounts for the tantalizing excess of cosmic ray electron/positrons, as reported by the PAMELA, ATIC, HESS, and FERMI observatories, then the implied annihilation cross section must be relatively large. This results, in the context of standard cosmological models, in very small relic dark matter abundances that are incompatible with astrophysical observations. We explore possible resolutions to this apparent conflict in terms of nonstandard cosmological scenarios; plausibly allowing for large cross sections, while maintaining relic abundances in accord with current observations.
Radical Jamming: Sketching Radical Design Principles for Game Creation Workshops

This article is based on two observations about game production culture, first that there is a demographic mismatch between those who make games and those who play them [1], and secondly that through their organization, setting, and constraints, game jams and other creation events can encourage radical game design principles, values beyond the common practice [3]. This study discusses how facilitators might introduce radical game design values in their events, using thematic, technological, and expressive strategies. Adopting a reflective design lens [2] it critically reviews the design of a game creation workshop for technology novices. It thus reflects on how event organizers can practice their role as cultural intermediaries [10] to support the development of game expressions beyond the norm.
Tissue-Specific Changesin Insulin Receptor mRNA Concentrations in Dexamethasone-Treated and Adrenaiectomized Rats

The relative concentrations of total insulin receptor (IR) mRNA were measured in the epididymal adipose tissue and liver of intact untreated rats, dexamethasone-treated rats, adrenalectomized rats and adrenalectomized rats treated with dexamethasone, using RNA blot assays and a specific IR cDNA probe. Northern blot assays revealed two IR mRNA species of approximately 9.5 and 7.5 kb, in both tissues. Dot-Blot assays followed by densitometry indicated that dexamethasone induced an approximately three-fold increase in IR mRNA in liver, but not in epididymal adipose tissue. By contrast, neither adrenalectomy alone nor the combination of adrenalectomy plus dexamethasone treatment al-tered the IR mRNA concentrations in liver nor in adipose tissue, which indicates that adrenalectomy was able to prevent the stimulation of IR gene expression caused by dexamethasone in rat liver. These results provide evidence for an "in vivo" tissue-specific regulation of IR gene expression, at the mRNA level, in rats under experimental conditions of an excess or insufficiency of glucocorticoids. Dexamethasone, Adrenalectomy
Phenol recovery from aromatic-rich oils by formation of eutectic liquids with trialkyl-2,3-dihydroxypropylammonium chloride salts

: Trialkyl-2,3-dihydroxypropylammonium chloride salts have been investigated as liquid eutectic-forming salts for the extraction of phenol from aromatic-rich model oil (toluene), demonstrating how the increased partitioning of phenol from oil-phases can be combined with reduced co-miscibility of the salt with aromatic hydrocarbons through the introduction of the dihydroxypropyl-function. for each sample across the compositional range. Glass transition temperatures were measured by differential scanning calorimetry (DSC) performed using a TA instruments Q2000 DSC with an RCS 90 cooling system attached. Tzero aluminium pans were ﬁlled and sealed with Tzero hermetic lids within the glove box under an argon dry atmosphere before being transferred outside the glovebox to the DSC. The DSC measurements were repeated using cooling and heating cycles at 5 ◦ C min − 1 between − 90 and 50 ◦ C (salt/phenol mixtures) or 120 ◦ C (pure trialkyl-2,3-dihydroxypropylammonium chloride salts). The visual melting points were also conﬁrmed by polarising optical microscopy on samples that were placed between glass microscope cover-slips that were placed on the heating-stage of a Olympus BX50 polarising optical microscope that was equipped with a Linkam TH600 hot stage and TP92 temperature controller. The reported observed melting points, Tg determined from DSC, and thermal decomposition points from TGA are estimated ± 2.5 ◦ C based on the uncertainty in clearly deﬁning second order (Tg) transitions or onsets to decomposition in dynamic TGA. These results indicate how the inclusion of lipophobic/hydrophilic (propanediol) groups can overcome the challenge of co-miscibility of longer-chain functionalised ammonium salts with aromatic-rich feeds, enabling the successful and efﬁcient extraction by simultaneously inhibiting the miscibility of eutectic forming salt extractants with aromatics while retaining the ability to generate eutectic liquids with phenol across a wide composition range.
CONDITIONED MEDIA OF MESENCHYMAL STEM CELLS RECOVERS PLACENTAL GROWTH FACTOR IN PRISTANE MICE MODEL

Objectives: A low level of placental growth factor (PlGF) expression in placenta is strongly correlated with pregnancy loss, prematurity, fetal growth restriction, and preeclampsia. Pristane-induced lupus in mice model has been widely used to present placental damage and poor pregnancy outcomes. Conditioned media (CM), which is medium for culturing mesenchymal stem cells (MSCs), have grown much attention recently. It has rich amount of growth factors, exosomes, microvesicles, and immunomodulatory molecules. These could become beneficial resources to recover poor placentation. Methods: CM taken from the 3rd to 4th passage of the culture were underdone by using explant method of human umbilical cord (hUC). Ninety BALB/c mice were randomly distributed into three groups: Normal, pristane, and pristane + CM group. Mice in normal group were injected with 0.5 ml normal saline and other groups with 0.5 ml pristane. Four weeks later, mice were mated and only pristane + CM group received therapy of CM-MSCs 0.5 ml single dose after pregnancy was confirmed. On day 16, pregnancy was terminated and the placenta was analyzed for PlGF expression using immunoreactive score and statistically tested with analysis of variance. Results: The average of PlGF expression in normal, pristane, and pristane + CM group was 9.528, 3.428, and 10.085, respectively. CM have significantly increase PlGF (p<0.01**) and equal to normal (p=0.301). Conclusion: CM of hUC-MSCs has shown its therapeutical effect among the low level of PlGF in damaged placenta, and potentially would prevent fetal growth restriction and preeclampsia arose from spiral artery remodeling failure.
Tropical Nevanlinna theory and second main theorem

Tropical Nevanlinna theory describes value distribution of continuous piecewise linear functions of a real variable with arbitrary real slopes, called tropical meromorphic functions, similarly as meromorphic functions are described in the classical Nevanlinna theory. In two previous papers, due to Halburd and Southall and to Laine and Yang, integer slopes only had been permitted; basic results of tropical Nevanlinna theory given in these two papers continue to be valid in our extended setting as well. In this paper, we present a tropical version of the second main theorem reminiscent of the corresponding result in the classical Nevanlinna theory. We also give an analysis of tropical periodic functions as well as of tropical hyper‐exponential functions, both of which have a certain extremal behaviour with respect to the second main theorem. Application to some ultra‐discrete equations of first and second order is also given. We explicitly express the solutions of these equations in terms of tropical periodic and of tropical hyper‐exponential functions, respectively. Restriction of the hyper‐order being at most 1 seems to be crucial for the existence of tropical meromorphic solutions of these equations rather than restricting the order to be finite.
FIRST-PRINCIPLES STUDIES OF THE PHASE TRANSITIONS IN Fe-Si ALLOYS

In this paper, the structural and magnetic properties of Fe100-xSix alloys (10 ≤ x ≤ 25,0 at. %) were calculated. The structural phase transition temperatures for the crystal structures A2, B2, and D03 were estimated from the geometry optimization. The Curie temperatures were calculated in a molecular-field approximation using the constants of magnetic exchange interaction calculated ab initio. For all the considered concentrations, with the temperature increase, we observed the structural transitions from the ordered cubic phase to a disordered structure, with the intermediate stage of a partially disordered state. The ferromagnet–paramagnet transition was observed for all the compositions, though in various crystal phases.
Fluctuations of the occupation times for branching system starting from infinitely divisible point processes

In the paper the rescaled occupation time fluctuation process of a certain empirical system is investigated. The system consists of particles evolving independently according to \alpha-stable motion in R^d, \alpha 0. We study how the limit behaviour of the fluctuations of the occupation time depends on the \emph{initial particle configuration}. We obtain a functional central limit theorem for a vast class of infinitely divisible distributions. Our findings extend and put in a unified setting results which previously seemed to be disconnected. The limit processes form a one dimensional family of long-range dependance centred Gaussian processes.
Quantum Dissipation and Decoherence in Neutrino Oscillations

In this dissertation, using Quantum Open Systems we analyze data from KamLAND by using a model that considers neutrino oscillation in two families with the inclusion of the decoherence effect. We review important concepts of usual Quantum Mechanics, such as the superposition principle, coherence, and the measurement problem. We also review the density matrix formalism and we use it to present the theory of Quantum Open Systems, which gives the Lindblad Kossakowski equation. Vaccum neutrino oscillations are studied using the density matrix formalism, and then the lindblad Kossakowski equation is used to obtain new equations for the neutrino oscillations in two families, in which we see the inclusion of the decoherence effect Then, we use a χ2 Test to find limits for the usual oscillation parameters and also for the decoherence parameter which we call γ. We find evidence in favor of the inclusion of the decoherence effect, since the analysis shows that a zero value for the decoherence parameter γ is excluded in 68.27% C.L.
The volume and Chern-Simons invariant of a representation

We give an efficient simplicial formula for the volume and Chern-Simons invariant of a boundary-parabolic PSL(2,C)-representation of a tame 3-manifold. If the representation is the geometric representation of a hyperbolic 3-manifold, our formula computes the volume and Chern-Simons invariant directly from an ideal triangulation with no use of additional combinatorial topology. In particular, the Chern-Simons invariant is computed just as easily as the volume.
Modeling of arsenic(V) adsorption onto granular ferric hydroxide

Granular ferric hydroxide (GFH) adsorption, a relatively simple retrofit technology for arsenic removal, was studied to determine the kinetics and thermodynamics for arsenic removal. The effects of temperature, pH, turbulence, and concentration of competitive anions were evaluated and modeled using kinetics and isotherm models. The pertinent parameters, such as activation energy, reaction rate constant, and adsorbent capacity coefficients, were calculated under different conditions. Overall test results show that GFH has a significant adsorption capacity for arsenic(V), or As(V). However, the presence of competitive anions—such as phosphate, silicate, vanadium, and selenium—had different adverse effects on As(V) removal with GFH. The results provide useful information for industrial optimization of adsorbent column deployment.
A nonlinear stationary phase method for oscillatory Riemann-Hilbert problems

We study the asymptotic behavior of oscillatory Riemann-Hilbert problems arising in the AKNS hierarchy of integrable nonlinear PDE's. Our method is based on the Deift-Zhou nonlinear steepest descent method in which the given Riemann-Hilbert problem localizes to small neighborhoods of stationary phase points. In their original work, Deift and Zhou only considered analytic phase functions. Subsequently Varzugin extended the Deift-Zhou method to a certain restricted class of non-analytic phase functions. In this paper, we extend Varzugin's method to a substantially more general class of non-analytic phase functions. In our work real variable methods play a key role.