Miracle-dz/UniFAR-FTUs huggingface dataset:
F-theoretic vs microscopic description of a conformal N = 2 SYM theory

: The F-theory background of four D7 branes in a type I ′ orientifold was conjectured to be described by the Seiberg-Witten curve for the superconformal SU(2) gauge theory with four ﬂavors. This relation was explained by considering in this background a probe D3 brane, which supports this theory with SU(2) realized as Sp(1). Here we explicitly compute the non-perturbative corrections to the D7/D3 system in type I ′ due to D-instantons. This computation provides both the quartic eﬀective action on the D7 branes and the quadratic eﬀective action on the D3 brane; the latter agrees with the F-theoretic prediction. The action obtained in this way is related to the one derived from the usual instanton calculus `a la Nekrasov (or from its AGT realization in terms of Liouville conformal blocks) by means of a non-perturbative redeﬁnition of the coupling constant. We also point out an intriguing relation between the four-dimensional theory on the probe D3 brane with SO(8) ﬂavor symmetry and the eight-dimensional dynamics on the D7 branes. On the latter, SO(8) represents a gauge group and the ﬂavor masses correspond to the vacuum expectation values of an adjoint scalar ﬁeld m : what we ﬁnd is that the exact eﬀective coupling in four dimensions is obtained from its perturbative part by taking into account in its mass dependence the full quantum dynamics of the ﬁeld m in eight dimensions.
APPLICATION OF DIVERGENT SPLIT INJECTION IN A CIDI DIESEL ENGINE TO REDUCE EMISSIONS AND BOOST THE EFFICIENCY

The application of single injection in diesel engines has been becoming outdated given the advent of High-Pressure Common Rail (HPCR) system. Multiple injection or split injection presents more controllability over the economic use of fuel during the injection process. In this sense, a thorough investigation of a new concept with the use of divergent injection and split injection is proposed, based on which the whole chamber area was covered with two nozzles of different angles. Moreover, the system allows the optimal use of time span for injection in by assigning different dwell-time periods between injection pulses. The results indicate that increasing the divergence of nozzle angles could possibly bring about arise of Uniformity Index (UI) and Indicated Power (IP) of engine. In contrast, increase of dwell time leads to deterioration of Indicated Mean Effective Pressure (IMEP) and Indicated Specific Fuel Consumption (ISFC). The data points of several injection schemes are presented in IMEP-NOx and ISFC-soot plots in comparison with single injection that shows adoption of a proper injection policy can establish an ideal trade-off between emissions and engine performance.
Inférence non-paramétrique pour des interactions poissoniennes

L'objet de cette these est d'etudier divers problemes de statistique non-parametrique dans le cadre d'un modele d'interactions poissoniennes. De tels modeles sont, par exemple, utilises en neurosciences pour analyser les interactions entre deux neurones au travers leur emission de potentiels d'action au cours de l'enregistrement de l'activite cerebrale ou encore en genomique pour etudier les distances favorisees ou evitees entre deux motifs le long du genome. Dans ce cadre, nous introduisons une fonction dite de reproduction qui permet de quantifier les positions preferentielles des motifs et qui peut etre modelisee par l'intensite d'un processus de Poisson. Dans un premier temps, nous nous interessons a l'estimation de cette fonction que l'on suppose tres localisee. Nous proposons une procedure d'estimation adaptative par seuillage de coefficients d'ondelettes qui est optimale des points de vue oracle et minimax. Des simulations et une application en genomique sur des donnees reelles provenant de la bacterie E. coli nous permettent de montrer le bon comportement pratique de notre procedure. Puis, nous traitons les problemes de test associes qui consistent a tester la nullite de la fonction de reproduction. Pour cela, nous construisons une procedure de test optimale du point de vue minimax sur des espaces de Besov faibles, qui a egalement montre ses performances du point de vue pratique. Enfin, nous prolongeons ces travaux par l'etude d'une version discrete en grande dimension du modele precedent en proposant une procedure adaptative de type Lasso.
DISCOVERY OF A YOUNG L DWARF BINARY, SDSS J224953.47+004404.6AB

We report discovery of a young 0. ″32 L dwarf binary, SDSS J2249+0044AB, found as the result of a Keck laser guide star adaptive optics imaging survey of young field brown dwarfs. Weak K i, Na i, and FeH features as well as strong VO absorption in the integrated-light J-band spectrum indicate a low surface gravity and hence young age for the system. From spatially resolved K-band spectra we determine spectral types of L3 ± 0.5 and L5 ± 1 for components A and B, respectively. SDSS J2249+0044A is spectrally very similar to G196−3B, an L3 companion to a young M2.5 field dwarf. Thus, we adopt 100 Myr (the age estimate of the G196−3 system) as the age of SDSS J2249+0044AB, but ages of 12–790 Myr are possible. By comparing our photometry to the absolute magnitudes of G196−3B, we estimate a distance to SDSS J2249+0044AB of 54 ± 16 pc and infer a projected separation of 17 ± 5 AU for the binary. Comparison of the luminosities to evolutionary models at an age of 100 Myr yields masses of 0.029 ± 0.006 and 0.022+0.006−0.009 M☉ for SDSS J2249+0044A and B, respectively. Over the possible ages of the system (12–790 Myr), the mass of SDSS J2249+0044A could range from 0.011 to 0.070 M☉ and the mass of SDSS J2249+0044B could range from 0.009 to 0.065 M☉. Evolutionary models predict that either component could be burning deuterium, which could result in a mass ratio as low as 0.4, or alternatively, a reversal in the luminosities of the binary. We find a likely proper motion companion, GSC 00568−01752, which lies 48. ″9 away (a projected separation of 2600 AU) and has Sloan Digital Sky Survey and Two Micron All Sky Survey colors consistent with an early M dwarf. We calculate a photometric distance to GSC 00568−01752 of 53 ± 15 pc, in good agreement with our distance estimate for SDSS J2249+0044AB. The space motion of SDSS J2249+0044AB shows no obvious coincidence with known young moving groups, though radial velocity and parallax measurements are necessary to refine our analysis. The unusually red near-IR colors, young age, and low masses of the binary make it an important template for studying planetary-mass objects found by direct imaging surveys.
COPD_A_276639 3447..3454

1Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Internal Medicine, Korea University Ansan Hospital, Ansan, Republic of Korea; 2Yonsei University College of Medicine, Seoul, Republic of Korea; 3Division of Pulmonology, Department of Internal Medicine, Institute of Chest Diseases, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea Background: Socioeconomic status (SES) is a strong determinant in the development of various diseases. We evaluated the relationship between SES and the incidence of chronic obstructive pulmonary disease (COPD) by using a community-based cohort data. Patients and Methods: Four-year follow-up data of 6341 adults (aged ≥ 40 years), who underwent serial pulmonary function test were analyzed. Incidence of COPD in the participants was defined as the absence of airflow obstruction compatible with COPD (pre-bronchodilator forced expiratory volume in 1 second/forced vital capacity ratio of <0.7) at baseline but documentation of airflow obstruction in serial testing. SES of patients was divided into quartiles according to household income and educational level. Multivariate logistic regression analyses were performed to estimate the association between SES and COPD incidence. Results: A total of 280 (4.4%) patients developed COPD during the follow-up. The proportion of subjects with lowest education (elementary school) and lowest household income levels (1st quartile) was significantly higher in the COPD group than in the nonCOPD group (37.9% vs 29.5%, p<0.011 and 48.4% vs 30.8%, p<0.001, respectively). Logistic regression analysis revealed that education level of elementary school was independently associated with COPD incidence after adjustment for sex, age, body mass index, white blood cell count, residence area, and occupation (odds ratio 1.879, 95% confidence interval 1.124–3.141, p=0.016). Conclusion: In the general population, educational level of elementary school was an independent risk factor for COPD among the components comprising SES. Our results indicate that the implementation of preventive strategies for COPD in those with low educational status could be beneficial.
Theoretical Aproximation and Experimental Evaluation of Market Functioning when Transactions are Regulated by Adhesion Contracts*

By using an economic model this paper describes and analyzes different forms of equilibrium within the market of the adhesion contracts where information is asymmetric and the agreement drafters decide which type of contract to offer considering that information is expensive for those who adhere. Under such conditions equilibriums are met in which contracts exist with the minimum possible quality associated to a price. In line with the economic analysis of law, the author concludes that the market is unable to correct inefficient agreements and this produces a limitation to the freedom of contract. This situation requires the implementation of controls over the contents of the adhesion contracts in order to ameliorate this result. Finally, there is an experimental analysis of the fundamental theoretic results.
An Asynchronous Decentralized Forecasting-Aided State Estimator for Power Systems

Tracking the system states of an extensive power system is an onerous task as it estimates the power system states by processing a large measurement set. This paper proposes a new asynchronous decentralized forecasting-aided state estimator (ADFASE) to track the states of a power system. The networked power system is partitioned into smaller systems, which processes the local measurements in parallel to estimate system states of reduced dimensionality; thereby reducing the computational complexity. The subsystems then communicate the local information to neighboring subsystems, which collate the incoming information to obtain near-optimal estimates. The decentralized topology eliminates the need for any centralized infrastructure. Each processor operates in an asynchronous manner, and the information is communicated to neighboring subsystems as and when the information is processed. The information received by the subsystems are assimilated asynchronously and does not need any prior synchronization between the nodes. The performance of the proposed estimator is evaluated using IEEE 30 and 118-bus systems.
A Parametric Study of Blast Damage on Hard Rock Pillar Strength

Pillar stability is an important factor for safe working and from an economic standpoint in underground mines. This paper discusses the effect of blast damage on the strength of hard rock pillars using numerical models through a parametric study. The results indicate that blast damage has a significant impact on the strength of pillars with larger width-to-height (W/H) ratios. The blast damage causes softening of the rock at the pillar boundaries leading to the yielding of the pillars in brittle fashion beyond the blast damage zones. The models show that the decrease in pillar strength as a consequence of blasting is inversely correlated with increasing pillar height at a constant W/H ratio. Inclined pillars are less susceptible to blast damage, and the damage on the inclined sides has a greater impact on pillar strength than on the normal sides. A methodology to analyze the blast damage on hard rock pillars using FLAC3D is presented herein.
A clinical study of diabetic patients who underwent the retinopathy while in the deficiency of calcitriol: Tertiary care teaching hospital based study

Background: Diabetes mellitus continues to be a tremendous health burden in America. In 2007, the prevalence of diabetes was estimated to be 23.6 million people, or 7.8% of the population. Diabetes mellitus (DM) is a large public health disorder which affects more than 300 million individuals worldwide, with significant morbidity and mortality. The prevalence of Diabetic Retinopathy varies from 20% to 80% in different studies according to previous literature. The increased physical activity is highly associated with less severe levels of Diabetic Retinopathy. Serum 25-hydroxyvitamin D (25(OH) D) levels were almost decreased in type 2 diabetic patients with retinopathy when compared with type 2 patients who had no microangiopathy. Objectives the purpose of this study was to evaluate the evidence for an association between diabetic retinopathy (DR) and vitamin D deficiency. Materials and Methods: As we have taken, 104 subjects of both the sexes, after obtaining informed consent; 52 being cases with Diabetic Retinopathy and 52 without Diabetic Retinopathy, using convenient sampling. Exclusion criteria included patients having known risk factors of diabetic retinopathy mainly people who were hypertensive or pregnant and lactating women. The serum of the patients’ samples were assessed by Chemiluminescence immunoassay [CLIA] of serum 25 hydroxy Vitamin D determination. Results: Our study included 52 patients with Diabetic Retinopathy and 52 without Diabetic Retinopathy. Mean age of the DR cases was 51.0 ±10.4 years and those without DR were 52.0 ±8.2 years. There were 25 (50%) males in patients with DR while 33 (66%) in patients without DR. The P-value was highly significant between both the groups (p=0.001). Conclusion: There is a statistically significant association between vitamin D (Calcitriol) deficiency and Diabetic Retinopathy (DR).
Effective and Efficient Hand Detection in Egocentric Videos

Background. Individuals with spinal cord injury (SCI) report upper limb function as their top recovery priority. To accurately represent the true impact of new interventions on patient function, evaluation should occur from home. Recent work has used wearable cameras to monitor hand function of individuals with SCI in a home environment, and these egocentric videos were automatically analyzed using computer vision. A key step of this process, hand detection, is difficult to accomplish robustly and reliably, hindering the deployment of a complete monitoring system in the home. Objective. Generate an algorithm for fast and reliable hand detection in egocentric videos by combining object detection and tracking algorithms. Methods. We generated an egocentric hand detection dataset (167,622 frames) using videos of 17 individuals with SCI performing activities of daily living in a home simulation laboratory. Using existing detection and tracking algorithms, we introduced two novel combination methods: 1) using detectors to reset trackers and 2) using trackers to generate hand proposals for
JMTM-03-2021-0083_proof 396..413

Purpose – The purpose of this study is to develop a framework of strategies to achieving customer order flexibility in and related to the order-to-delivery (OTD) process. The purpose is also to investigate how companies prioritize various strategies to achieve customer order flexibility. Design/methodology/approach – Based on a literature review, pre-tests and conceptual reasoning, a conceptual framework of strategies related to the order-to-delivery process was developed. The strategies were linked to the order quantity and delivery lead-time flexibility dimensions. This structure resulted in six groups covering enabling as well as remedial strategies. An empirical interview study of ten customer–supplier relationships was conducted. Findings – The interviews identified additional strategies, thereby expanding the framework. The enabling strategies with the highest median values were “have continuous contact with the customer’s purchaser” and “use safety stock of rawmaterials/semi-finished products”. The remedial strategywith the highest medianwas “re-plan/re-prioritize the order backlog”. In the delivery sub-process, it was more common to apply remedial strategies for delivery lead-time than for order quantities. Research limitations/implications – The developed framework is a contribution to the literature on operational flexibility in and related to the OTD process. It complements existing knowledge by taking a supplier perspective. Practical implications – Suppliers can use the framework as a tool to understand and systematically achieve better customer order flexibility in and related to the OTD process. Customers can use the framework as a checklist for supplier evaluation and supplier development. Originality/value – Few identified studies include empirical data on customer order flexibility.
Design of a High-Performance 16-Slot 8-Pole Electromagnetic Shock Absorber Using a Novel Permanent Magnet Structure

The conventional development of tubular generators for applications intended to harvest energy using vehicle suspension systems is faced with the critical challenge of increasing the power harvested for a given space. Conventional optimal designs of machine dimensions have improved both output power and output power density, but the actual values are still relatively small. Recently, we proposed a novel tubular generator structure that combines a mechanical shock absorber and an electrical generator. An innovative permanent magnet structure using both Halbach array and iron spacers (a hybrid-type) was applied. The high relative permeability of the iron material significantly improved the performance of the proposed generator in comparison with conventional models. A prototype was fabricated and experimentally validated via simulation.
1 Voting Patterns and the Gender Wage Gap

Striving for gender equality presents major challenges but the benefits are vast, ranging from reduced conflict, both within and between communities, to higher economic growth. Unfortunately, Israel’s gender wage gap remains one of the highest among developed countries, despite a growing reverse gender gap in educational attainment. Investigating the gender wage gap for the Jewish majority and for the Arab minority, we find evidence of gender segregation by industry and occupations in addition to a glass ceiling effect for Jewish and Arab women. Using data from the Israeli Household Income Survey and electoral data from the Israeli parliamentary elections (2009), this paper provides novel evidence of the role of voter preferences in explaining the persistence of gender pay gaps. Importantly, we find strong evidence of an association between a higher share of votes allocated to nationalist parties, in a given locality, and a larger, (adjusted), gender wage gap for both Jewish-Israelis and Arab-Israelis. JEL Classification : J21, J31, J61, J45, C14, C24
INCIDENCE OF LISTERIA SPECIES IN SOME DAIRY PRODUCTS IN BENI-SUEF GOVERNORATE

The present study was conducted to investigate the prevalence of Listeria spp . in some dairy products. A total of 240 samples of fresh cream, ice cream, butter milk cheese, Kareish cheese, Talaga cheese and yoghurt (40 of each) were collected randomly from different supermarkets, retail outlets and other markets outlets in Beni-Suef Governorate, Egypt. Out of 240 samples, 24(10%) were positive for Listeria species . The occurrence of Listeria spp . in fresh cream, ice cream, butter milk cheese and Kareish cheese was 6(15%), 8 (20%), 5 (12.5%) and 5(12.5%) respectively, while Listeria species couldn׳t be detected in any of Talaga cheese and yoghurt samples. The most prevalent species was L.grayii (45.83%), followed by L.monocytogenes (33.33%), and L.welshimeri (12.51%) and L. innocua 2(8.33%). All 8 L.monocytogenes isolates showed the presence of the hly A gene suggesting the possibility of danger of food borne listeriosis among dairy products consumers. In conclusion, the results of this study emphasize the need forapplying more strict hygienic control measures especially during processing, storage and marketing of dairy products.
Deploying Artificial Intelligence to Combat Disinformation Warfare Identifying and Interdicting Disinformation Attacks Against Cloud-based Social Media Platforms

—Disinformation attacks that make use of Cloud-based social media platforms, and in particular, the attacks orchestrated by the Russian “Internet Research Agency,” before, during and after the 2016 U.S. Presidential election campaign and the 2016 Brexit referendum in the U.K., have led to increasing demands from governmental agencies for technological tools that are capable of identifying such attacks in their earliest stages, rather than identifying and responding to them in retrospect. This paper reports on the interim results of an ongoing research project that was sponsored by the Canadian government’s Cyber Security Directorate. The research is being conducted by the International CyberCrime Research Centre (ICCRC) at Simon Fraser University (Canada), in cooperation with the Department of Information and Computer Sciences at the University of Strathclyde (Scotland). Our ultimate objective is the development of a “critical content toolkit,” which will mobilize artificial intelligence to identify hostile disinformation activities in “near-real-time. ” Employing the ICCRC’s Dark Crawler, Strathclyde’s Posit Toolkit, Google Brain’s TensorFlow, plus SentiStrength and a short-text classification program known as LibShortText, we have analyzed a wide sample of social media posts that exemplify the “fake news” that was disseminated by Russia’s Internet Research Agency, comparing them to “real news” posts in order to develop an automated means of classification. To date, we have been able to classify posts as “real news” or “fake news” with an accuracy rate of 90.7%, 90.12%, 89.5%, and 74.26% using LibShortText, Posit, TensorFlow and SentiStrength respectively.
L-CARNITINE ENHANCING ROLES ON BUFFALO SEMEN FREEZABILITY, ULTRA STRUCTURE AND FERTILIZING POTENTIALS

Recently, male impact has been recognized as a momentous cause of infertility. Male infertility isn’t an entity but it evokes a variety of mechanisms and explanations to understand it. In between, a biochemical semen additive that improves or overcome certain semen situations so can enhance or treat semen fertility and infertility, respectively. L-carnitine is one of these biochemical semen additives. Till now, the exact effects of Lcarnitine on buffalo semen processing outcomes haven’t been discovered. The current study aimed to clarify Lcarnitine roles during buffalo semen cryopreservation. Semen samples were obtained from six fertile buffalo bulls (aged 3 to 5 years). Weekly, two consecutive ejaculates were collected from each bull for successive six weeks using artificial vagina. The ejaculates were pooled to eliminate samples variability. Semen samples were extended with Tris-based extender supplemented with different concentrations of L-carnitine (0.01, 0.05 and 0.1 mg/ml) Vs. Tris-based extender only (control). Then they were processed to cryopreservation and thawing to assess different semen characteristics. It had been found that L-carnitine (0.05mg/ml) significantly ( p<0.05 ) improved post thawing motility, viability index, acrosomal integrity, in vitro fertilization, blastocyst and conception rates of treated buffalo semen (57.00±2.55%, 126.5±8.33, 14.40 ± 1.43%, 56.45%, 15.79% and 64.71%, respectively), compared with control (42.00±2.56%, 87.00±10.43, 23.80±1.86%, 36.53%, 2.13% and 42.86%, respectively). Conclusion: L-carnitine supplementation to buffalo semen extender significantly enhanced its characteristics and protecting its plasma membrane and mitochondrial functional integrity. Moreover, the preceding results focusing more light on the potential roles of L-carnitine in regulating male fertility and infertility.