Miracle-dz/UniFAR-FTUs huggingface dataset:
The codegree Turán density of tight cycles minus one edge

<jats:p>Given <jats:inline-formula> <jats:alternatives> <jats:inline-graphic xmlns:xlink="http://www.w3. org/1999/xlink" mime-subtype="png" xlink:href="S0963548323000196_inline1. png" /> <jats:tex-math> $\alpha \gt 0$ </jats:tex-math> </jats:alternatives> </jats:inline-formula> and an integer <jats:inline-formula> <jats:alternatives> <jats:inline-graphic xmlns:xlink="http://www.w3. org/1999/xlink" mime-subtype="png" xlink:href="S0963548323000196_inline2. png" /> <jats:tex-math> $\ell \geq 5$ </jats:tex-math> </jats:alternatives> </jats:inline-formula>, we prove that every sufficiently large <jats:inline-formula> <jats:alternatives> <jats:inline-graphic xmlns:xlink="http://www.w3. org/1999/xlink" mime-subtype="png" xlink:href="S0963548323000196_inline3. png" /> <jats:tex-math> $3$ </jats:tex-math> </jats:alternatives> </jats:inline-formula>-uniform hypergraph <jats:inline-formula> <jats:alternatives> <jats:inline-graphic xmlns:xlink="http://www.w3. org/1999/xlink" mime-subtype="png" xlink:href="S0963548323000196_inline4. png" /> <jats:tex-math> $H$ </jats:tex-math> </jats:alternatives> </jats:inline-formula> on <jats:inline-formula> <jats:alternatives> <jats:inline-graphic xmlns:xlink="http://www.w3. org/1999/xlink" mime-subtype="png" xlink:href="S0963548323000196_inline5. png" /> <jats:tex-math> $n$ </jats:tex-math> </jats:alternatives> </jats:inline-formula> vertices in which every two vertices are contained in at least <jats:inline-formula> <jats:alternatives> <jats:inline-graphic xmlns:xlink="http://www.w3. org/1999/xlink" mime-subtype="png" xlink:href="S0963548323000196_inline6. png" /> <jats:tex-math> $\alpha n$ </jats:tex-math> </jats:alternatives> </jats:inline-formula> edges contains a copy of <jats:inline-formula> <jats:alternatives> <jats:inline-graphic xmlns:xlink="http://www.w3. org/1999/xlink" mime-subtype="png" xlink:href="S0963548323000196_inline7. png" /> <jats:tex-math> $C_\ell ^{-}$ </jats:tex-math> </jats:alternatives> </jats:inline-formula>, a tight cycle on <jats:inline-formula> <jats:alternatives> <jats:inline-graphic xmlns:xlink="http://www.w3. org/1999/xlink" mime-subtype="png" xlink:href="S0963548323000196_inline8. png" /> <jats:tex-math> $\ell$ </jats:tex-math> </jats:alternatives> </jats:inline-formula> vertices minus one edge. This improves a previous result by Balogh, Clemen, and Lidický. </jats:p>
Analysis and design of a waveguide slot and a reflection-canceling inductive wall

A reflection canceling element composed of a slot with inductive wall in the waveguide is proposed and analyzed. The frequency characteristics are calculated by the method of moments. Only the axial component of electric current along the waveguide height is assumed on the wall. The initial reflection of about -15 dB for isolated longitudinal slot is suppressed below -20 dB over 100 MHz by installing an inductive wall. The use of an inductive wall instead of post contributes to the simple fabrication of the reflection canceling element in single layer slotted waveguide arrays.
The impact of intergenerational programs on children and older adults: a review

ABSTRACT Background: Elderly are at particular risk of social isolation. This condition significantly affects health; on the contrary, social involvement can be extremely advantageous. In this context, intergenerational programs improve interactions between different ages. Then, we conducted a review regarding intergenerational programs, to summarize the effects of these activities on both elderly and children. Methods: Our review followed the PRISMA statements. We considered papers reporting data about intergenerational programs involving children (preschool and elementary) and elderly. Results: The final selection obtained 27 sources. Ten studies evaluated children's outcomes outlining the positive impact of intergenerational programs upon children's perception of elderly. The effects on older participants were variegated considering well-being, depression, self-reported health, and self-esteem. Moreover, the retrieved studies outlined the importance of a careful organization and of a specific training for all staff members. The staff involved in similar programs appeared, overall, highly satisfied. Discussion: The positive impact on children of intergenerational programs is proved at both short- and long-term. Moreover, despite the different outcomes considered and the variable results, these programs resulted overall beneficial on elderly participants. Finally, similar activities resulted feasible even in case of older adults with dementia.
Contributions to modeling and computer efficient estimation for Gaussian space -time processes

This thesis research provides several contributions to computer efficient methodology for estimation with space-time data. First we propose a parsimonious class of computer-efficient Gaussian spatial interaction models that includes as special cases CAR and SAR-like models. This extended class is capable of modeling smooth spatial random fields. We show that, for rectangular lattices, this class is equivalent to higher-order Markov random fields. Thus we capture the computational advantage of iterative updating of Markov random fields, while at the same time provide the possibility of simple interpretation of smooth spatial structure. This class of spatial models is defined via a spatial structure removing orthogonal transformation, which we propose for any spatial interaction model as a means to improve computation time. Such a transformation is a one-time preprocessing step in iterative estimation, such as in MCMC. For very large data on a rectangular lattice we can achieve further computational savings by circulant embedding which enables use of FFT for calculations. We examine how the model as well as the embedding can be incorporated in hierarchical models for space time data with spatially varying temporal trend components. We describe an application in arctic hydrology where gridded runoff fields are investigated for local trends.
Density functional theory study of the magnetic moment of solute Mn in bcc Fe

An unexplained discrepancy exists between the experimentally measured and theoretically calculated magnetic moments of Mn in  -Fe. In this study, we use density functional theory to suggest that this discrepancy is likely due to the local strain environment of a Mn atom in the Fe structure. The ferromagnetic coupling, found by experiment, was shown to be metastable and could be stabilised by a 2% hydrostatic compressive strain. The effects of Mn concentration, vacancies and interstitial defects on the magnetic moment of Mn are also discussed. It was found that the ground state, anti-ferromagnetic (AFM) coupling of Mn to Fe requires long range tensile relaxations of the neighbouring atoms along <111> which is hindered in the presence of other Mn atoms. Vacancies and Fe interstitial defects stabilise the AFM coupling but are not expected to have a large effect on the average measured magnetic a stochastic manner with an average moment of ~0.06  B and median of ~0.70  B . By providing a statistically significant dataset, we show that the previous theory
Evaluating fun and usability in computer games with children

• A submitted manuscript is the version of the article upon submission and before peer-review. There can be important differences between the submitted version and the official published version of record. People interested in the research are advised to contact the author for the final version of the publication, or visit the DOI to the publisher's website. • The final author version and the galley proof are versions of the publication after peer review. • The final published version features the final layout of the paper including the volume, issue and page numbers.
Finite-horizon integration for continuous-time identification: bias analysis and application to variable stiffness actuators

ABSTRACT Direct identification of continuous-time dynamical models from sampled data is now a mature discipline, which is known to have many advantages with respect to indirect approaches based on the identification of discretised models. This paper faces the problem of continuous-time identification of linear time-invariant systems through finite-horizon numerical integration and least-square estimation. The bias in the least-squares estimator due to the noise corrupting the signal observations is quantified, and the benefits of numerical integration in the attenuation of this bias are discussed. An extension of the approach which combines numerical integration, least-squares estimation and particle swarm optimisation is proposed for the identification of nonlinear systems and nonlinear-in-the-parameter models, and then applied to the estimation of the torque-displacement characteristic of a commercial variable stiffness actuator driving a one-degree-of-freedom pendulum.
LEVEL OF SELF ESTEEM AMONG CHILDREN OF ALCOHOLIC AND NON-ALCOHOLIC PARENTS

-The National Association of Children of Alcoholics estimates that there are 11 million children of alcoholics under the age of 18 years. A study was conducted to assess level of self-esteem among children of alcoholic non-alcoholic parents. The objectives were to assess, compare and find out the association between the level of self-esteem and socio personal data. Methodology adopted for the study was descriptive comparative design with multistage sampling. Sample size was 128. Structured questionnaire was used to collect socio personal data of participants and Children of Alcoholics Screening test was used to identify children of alcoholic and non-alcoholic parents. After that the standardized tool State Self Esteem Scale was used to assess the level of self-esteem the study findings revealed that in children of alcoholic parents group, 82.8% (53) were having poor self-esteem and 17.2% (11) were having good self-esteem where as in children of non-alcoholic parents group, 78.1% (50) were having good self-esteem and 21.9% (14) were having poor self-esteem.
Development and validation of a HPTLC method for the simultaneous estimation of atorvastatin calcium and ezetimibe

A simple, precise, accurate and rapid high-performance thin-layer chromatographic method has been developed and validated for the estimation of atorvastatin calcium and ezetimibe simultaneously in combined dosage forms. The stationary phase used was precoated silica gel 60F254. The mobile phase used was a mixture of chloroform: benzene: methanol: acetic acid (6.0:3.0:1.0:0.1 v/v/v/v). The detection of spots was carried out at 250 nm. The method was validated in terms of linearity, accuracy, precision and specificity. The calibration curve was found to be linear between 0.8 and 4.0 µg/spot for atorvastatin calcium and 0.1 and 1.0 µg/spot for ezetimibe. The limit of detection and the limit of quantification for atorvastatin calcium were found to be 170 ng/spot and 570 ng/spot respectively, and for ezetimibe, 20 ng/spot and 70 ng/spot respectively. The proposed method can be successfully used to determine the drug content of marketed formulation.
Galaxy morphologies in the era of big-data surveys

Abstract Galaxy morphology is a first-order descriptor of a galaxy and a useful proxy to identify physical processes. The 100 years old Hubble fork describes the structural diversity of galaxies in the local universe. Unveiling the origins of this galaxy zoology is a key challenge in galaxy evolution. In this review talk, I first summarized some key advances in our understanding of the morphological evolution of galaxies from z ~ 0 to z ~ 3, thank you in particular to the SDSS and HST legacies. In the second part, I focused on the classification techniques. With the emergence in the last years of large surveys the samples of study have increased by several orders of magnitude going from a few tens to several millions of objects. This trend will clearly continue in the next decade with coming surveys/missions such as EUCLID and WFIRST. While galaxy classification is still a required step in any survey, visual inspection of galaxies is becoming prohibitively time-consuming. Under these circumstances, the techniques used to estimate galaxy morphologies need to be updated.
Statistics of Durations and Spacings of Equatorial Plasma Depletions Detected by the C/NOFS Planar Langmuir Probe

The Planar Langmuir Probe onboard the Communication/Navigation Outage Forecasting System satellite monitored ionospheric plasma densities and their irregularities with high resolution almost seamlessly for approximately five years since May 2008. Planar Langmuir Probe data from two different years (1 October 2008 to 30 September 2009 and 5 June 2012 to 4 June 2013) were selected for analysis. The first data set corresponds to solar minimum conditions, and the second one is as close to solar maximum conditions of solar cycle 24 as possible, with basis on their continuous availability. The results from a level‐crossing analysis applied to detrended evening‐time data from a fixed altitude range show how depletion durations and spacings between consecutive depletions are statistically distributed as functions of solar activity and longitude sector. In quantitative terms, they show that (i) the fewer depletions observed in the solar‐minimum year are also shorter, shallower, and closer together than those detected in the more active one and (ii) great similarities exist between structures of depletion durations and spacings between consecutive depletions observed in the South American and African longitude sectors, which are more noticeable than those associated with in the Indian‐Asian longitude sector.
3D measurement and camera attitude estimation method based on trifocal tensor

To simultaneously perform 3D measurement and camera attitude estimation, an efficient and robust method based on trifocal tensor is proposed in this paper, which only employs the intrinsic parameters and positions of three cameras. The initial trifocal tensor is obtained by using heteroscedastic errors-in-variables (HEIV) estimator and the initial relative poses of the three cameras is acquired by decomposing the tensor. Further the initial attitude of the cameras is obtained with knowledge of the three cameras’ positions. Then the camera attitude and the interested points’ image positions are optimized according to the constraint of trifocal tensor with the HEIV method. Finally the spatial positions of the points are obtained by using intersection measurement method. Both simulation and real image experiment results suggest that the proposed method achieves the same precision of the Bundle Adjustment (BA) method but be more efficient.
Finding the location of the instantaneous center of rotation using a particle image velocimetry algorithm

This work is about planar rigid-body kinematics and, in particular, the principle of the instantaneous center of rotation (IC). Using a computer simulated approach, a workflow is presented that results in a visual representation of the locus of the IC, based on particle image velocimetry (PIV). Here, a small number of digital animations of textured objects are created with multibody dynamics software, and later imported in PIV software to extract the velocity field (magnitude and direction) of objects moving within a plane. We believe the workflow presented may help learners improve their understanding of the concept of the IC, thus enhancing their knowledge of rigid body kinematics.
Prevalence and Psychosocial Risk Factors Associated with Internet Addiction in a Nationally Representative Sample of College Students in Taiwan

The aim of this study was to examine the prevalence of Internet addiction in a nationally representative sample of college students and to identify any associated psychosocial risk factors. The present study was constructed using a cross-sectional design with 3,616 participants. Participants were surveyed during the middle of the spring and fall semesters and recruited from colleges around Taiwan using stratified and cluster random sampling methods. Associations between Internet addiction and psychosocial risk factors were examined using stepwise logistic regression analysis. The prevalence of Internet addiction was found to be 15.3 percent (95 percent confidence interval, 14.1 percent to 16.5 percent). More depressive symptoms, higher positive outcome expectancy of Internet use, higher Internet usage time, lower refusal self-efficacy of Internet use, higher impulsivity, lower satisfaction with academic performance, being male, and insecure attachment style were positively correlated with Internet addiction. The prevalence of Internet addiction among college students in Taiwan was high, and the variables mentioned were independently predictive in the logistic regression analysis. This study can be used as a reference for policy making regarding the design of Internet addiction prevention programs and can also aid in the development of strategies designed to help Internet-addicted college students.
Rolling Bearing Fault Analysis by Interpolating Windowed DFT Algorithm

This paper focuses on the problem of accurate Fault Characteristic Frequency (FCF) estimation of rolling bearing. Teager-Kaiser Energy Operator (TKEO) demodulation has been applied widely to rolling bearing fault detection. FCF can be extracted from vibration signals, which is pre-treatment by TEKO demodulation method. However, because of strong noise background of fault vibration signal, it is difficult to extract FCF with high precision. In this paper, the improved algorithm of rolling bearing fault diagnosis is analyzed. Based on the envelope analysis by TKEO demodulation, it combines zero padding technique and the Improved Iterative Windowed Interpolation DFT (IIWIpDFT) algorithm to correct demodulated signal. Experimental result shows that the proposed algorithm decreases Root Mean Square Error (RMSE) of FCF(inner race) form about 2Hz~5.5Hz to about 0.5Hz for short data length, the same treatment also decreases RMSE form about 1.1Hz~3Hz to about 0.4~0.5Hz for longer data length in most cases. Meanwhile, the RMSE of FCF (outer race) improved 2.3 to 84.5% as compared to the application of traditional TEKO demodulation alone.
Integrability in AdS/CFT: Exacts Results for Correlation Functions

We report on the first systematic study of correlation functions in N = 4 super Yang-Mills theory using integrability techniques. In particular, we show how to compute threeand fourpoint functions of single-trace gauge-invariant operators at tree level in the SU(2) sector of the theory. Using the AdS/CFT correspondence, the correlation functions that we compute can be thought of as the joining or splitting of strings moving in AdS5 × S. We show that when one (two) of the operators in the three-(four-)point function are taken to be small BPS operators, our weak coupling results match perfectly with the strong coupling results in the Frolov-Tseytlin limit. We conclude by presenting some results that will be needed to extend the methods presented in this thesis beyond the SU(2) sector of N = 4 super Yang-Mills.
Théorie des capacités

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Value for the Money Spent? Exploring the Relationship Between Medicaid Costs and Quality. Washington, DC: Mathematica Policy Research

This study examines the value of state Medicaid program spending by exploring the relationship between both sides of the efficiency coinâ€”costs and outcomes. The authors create measures that relate spending per beneficiary to quality indicators, compare statesâ€™ performance, and build a foundation for a more comprehensive assessment of Medicaid efficiency when more data become available.
Meningkatkan Kemampuan Berpikir Kritis Siswa Dengan Problem Based Learning

Abstrak— Berpikir kritis merupakan usaha untuk mengumpulkan, menginterpretasi, menganalisis, dan megevaluasi dengan tujuan untuk mengambil kesimpulan yang dapat dipercaya dan valid. Berpikir kritis dapat juga diartikan sebagai suatu kemampuan yang memungkinkan kita untuk menganalisis dan mempersatukan informasi untuk memecahkan masalah dalam cakupan tertentu. Kemampuan seseorang dalam berpikir kritis merupakan kemampuan yang sangat esensial untuk kehidupan, pekerjaan, dan berfungsi efektif dalam semua aspek kehidupan lainnya. Matematika merupakan salah satu alternative cara yang dapat meningkatkan kemampuan berpikir kritis seseorang, yang akan bermanfaat bagi kehidupannya di masa mendatang. Oleh karena itu, sudah sepatutnya pembelajaran matematika dirancang dengan tepat dan sistematis, sehingga apa yang menjadi tujuannya akan mudah dicapai. Problem Based Learning, suatu model pembelajaran yang mampu meningkatkan kemampuan berpikir kritis siswa. Problem Based Learning, model yang membawa masalah dari kehidupan nyata,ke dalam matematika, memberi kesempatan bagi siswa membuat pilihan mengenai apa yang akan dipelajarinya, sehingga pembelajaran menjadi lebih kolaboratif dan pendidikan yang berkualitas pun akan terwujud. Ide-ide dan kemampuan mengeksplore mereka pun akan meningkat seiring dengan meningkatnya kemampuan berpikir kritisnya. Makalah ini memaparkan penggunaan problem based learning untuk meningkatkan kemampuan berpikir kritis siswa dalam pembelajaran matematika.
Computational fluid dynamics in the upper airway: comparison between different models and experimental data for a simplified geometry with major obstruction

The present study aims at comparing different computational models used for simulating the fluid-structure interaction within an in-vitro setup resembling simplified major obstruction of pharyngeal airway. Due to the nature of the problem, i.e. air flow passing over a deformable latex surface, a fully coupled fluid-structure interaction algorithm is used. A comparison is made between two finite element models for the solid domain, one using shell and the other using volume elements. The material properties of these models follow a hyperelastic behavior. For the fluid part, laminar and various turbulence models such as standard k-epsilon, Shear Stress Transport, SSG Reynolds Stress and BSL Reynolds Stress are compared. We evaluate the efficiency of the models and how close to the experimental data are their results. The predictions of the structural model containing volume elements showed better consistency with the experimental data. In addition, the results obtained with the standard k-epsilon turbulence model were the least deviated among all turbulence models.