Miracle-dz/UniFAR-FTUs huggingface dataset:
The effect of media emotions on asset prices

This paper replicates and extends the research performed by Garcia (2013). Using an extensive sample of financial columns from the New York Times and the Wall Street Journal between 1890 and 2015, the predictive effect of media emotions is tested on stock prices. As a proxy for each media emotion, the fraction of words representing that emotion in a column is used. The results show that general positive and negative affect help predict asset prices. A higher fraction of positive (negative) words in a financial column increases (decreases) the returns on the Dow Jones. Partial evidence is found that this effect is more pronounced during recessions than during expansions. Also, the emotion of serenity positively predicts stock returns. On the other hand, it is found that stock returns have a predictive effect on media emotions as well. Positive returns increase the fraction with which media content contains positive affect and the emotion of self-assurance, while negative returns similarly increase this fraction for negative affect and the emotions of fear and sadness. The main implication of this research is that investor sentiment limits market efficiency, providing additional support for the theoretical foundations of the behavioral finance paradigm. *The author is a student of the Erasmus School of Economics, Erasmus University Rotterdam, The Netherlands. This research is supervised by Dr. G. Baltussen.
Screening, Production and Optimization of Extracellular Laccase Enzyme from Pleurotus Ostreatus

The enzyme laccase (p-diphenol: oxygenoxidoreductase; EC 1.10.3.2) is known to degrade many phenolic aromatic compounds. Many species of white rot fungi are well–known producers of the enzyme laccase. The first phase was the isolation of eight different strains of white rot fungi and screening them for laccase activity. Then highest laccase producing white rot fungal strains was identified. This strain Pleurotus ostreatus produced high amount of laccase compared to rest of the strains. In the second phase, the culture conditions for Pleurotus ostreatus were standardized to maximize the laccase production. The further steps involved the isolation, purification, and characterization of the enzyme laccase produced by Pleurotus ostreatus and in the final phase, the project deals with the textile industrial application of dyes and sludge treatment.
Ice Age Classification Using Cross-Polarization Measurement With X-Band Radar

The ability of X-band radar to differentiate young ice from second stage thin first-year ice (SST-FYI) is investigated. Cross-polarized Xband radar is employed on the Canadian Coast Guard Ship (CCGS) Henry Larsen, which is capable of measuring the depolarization characteristics of sea ice and glacial ice. The CCGS Henry Larsen recorded several hours of raw radar data (including the radar data of several ice states with both young ice and SST-FYI) on the Northeast Coast of Newfoundland during several days in March 2012. Based on the collected data, the depolarization characteristics of young ice and second stage thin first-year ice are analyzed for the grazing angles less than 4°. The results show that the depolarized reflected wave is stronger for the SST-FYI than the depolarized backscattered wave from the young ice.
An evaluation of iron bioavailability and speciation in western Lake Superior with the use of combined physical, chemical, and biological assessment

An iron‐dependent cyanobacterial bioreporter (Synechococcus strain KAS101) was used in unison with size‐fractionated iron content (>0.45, <0.45, <0.02 µm), and chemical characterization of iron complexation (C18 resin column) to elucidate the bioavailable forms of iron present in Lake Superior during periods of inverse thermal stratification (May) and strong thermal stratification (September) of the water column. The results provide evidence of organic complexation of iron in Lake Superior waters. Iron in most sampled water was complexed by organic compounds that behaved like fulvic acids, whereas some samples showed evidence for the presence of siderophore‐like compounds. The presence of dissolved organic matter suppressed the cellular luminescence of the bioreporter, indicating an increased iron bioavailability. This effect could result either from the presence of siderophores forming iron complexes that are bioavailable to the bioreporter, or from more indirect effects because of the presence of other organic compounds, such as fulvic acids or polysaccharides. Model ligand additions, iron bioaccumulation, and photo‐oxidation of dissolved organic matter were used to assess the bioavailability of organically complexed iron to the bioreporter. A significant fraction of the iron (40‐100%) was bioavailable to the bioreporter. Iron bioavailability was high enough for the bioreporter not to be iron limited in the water collected from Lake Superior. This measure of bioavailability to picocyanobacteria is relevant because picoplankton accounted for the majority of chlorophyll a in Lake Superior during this study.
Prey-switching by Cassin's auklet Ptychoramphus aleuticus reveals seasonal climate-related cycles of Euphausia pacifica and Thysanoessa spinifera

Euphausia pacifica and Thysanoessa spinifera comprise a substantial proportion of the diet of Cassin's auklet Ptychoramphus aleuticus in the Gulf of the Farallones, California. Ocean climate variability has been linked to fluctuations in euphausiid abundance and life-history parame- ters. We tested the hypothesis that seasonal patterns of prey use by auklets correspond to within- season variation in upwelling and sea surface temperature (SST), by comparing the proportion (by number) of E. pacifica and T. spinifera in auklet diet samples obtained during the chick-rearing period to SST and an upwelling index (UI) over 11 years. We found that the proportion of E. pacifica adults in auklet diet decreased over the chick-rearing period, and increased with increasing UI and decreasing SST. We detected curvature in the relationship between adult E. pacifica and UI, with E. pacifica increasing to a point and decreasing thereafter. T. spinifera in auklet diet showed an increase over the chick-rearing period, but no relationships were detected with UI or SST. Mass of individual adult E. pacifica increased with increasing UI and decreasing SST. We detected moderate curvature in the relationship between mass of individual adult T. spinifera and SST. The proportion of E. paci- fica juveniles in auklet diet did not change seasonally and was not related to UI or SST, while the pro- portion of T. spinifera juveniles in auklet diet increased seasonally and with increases in UI. Seasonal changes in the ingestion of euphausiids by auklets appeared to be affected by ocean climate variabil- ity; however, prey-selection via a shift in foraging location or competition with other marine preda- tors are alternative valid explanations. This study highlighted the utility of using top marine preda- tors to sample prey availability, thereby complementing traditional net sampling procedures for determining the distribution and abundance of euphausiids in marine systems.
Finite element analysis for a coupled bulk-surface partial differential equation

In this paper, we define a new finite element method for numerically approximating the solution of a partial differential equation in a bulk region coupled with a surface partial differential equation posed on the boundary of the bulk domain. The key idea is to take a polyhedral approximation of the bulk region consisting of a union of simplices, and to use piecewise polynomial boundary faces as an approximation of the surface. Two finite element spaces are defined, one in the bulk region and one on the surface, by taking the set of all continuous functions which are also piecewise polynomial on each bulk simplex or boundary face. We study this method in the context of a model elliptic problem; in particular, we look at well-posedness of the system using a variational formulation, derive perturbation estimates arising from domain approximation and apply these to find the optimal-order error estimates. A numerical experiment is described which demonstrates the order of convergence.
Learning Word Subsumption Projections for the Russian Language

The semantic relations of hypernymy and hyponymy are widely used in various natural language processing tasks for modelling the subsumptions in common sense reasoning. Since the popularisation of the distributional semantics, a significant attention is paid to applying word embeddings for inducing the relations between words. In this paper, we show our preliminary results on adopting the projection learning technique for computing hypernyms from hyponyms using word embeddings. We also conduct a series of experiments on the Russian language and release the open source software for learning hyponym-hypernym projections using both CPUs and GPUs, implemented with the TensorFlow machine learning framework.
Radiological and clinical evaluation amongst types of tibial tunnel widening and choice of graft fixation implants in ACL reconstruction

Objective: To study incidence of tibial tunnel widening and its functional correlation in patients operated with ACL reconstruction with four fold hamstring tendon autograft. To evaluate radiologically and clinically tunnel widening when tibial side of graft is fixed with suture disc or interference screw and to study type of tunnel widening (cavity type, cone type and line type) and its functional correlation. Introduction: Arthroscopic ACL reconstruction is most commonly done ligament reconstruction surgery in orthopaedic with gratifying results. However, it is also associated with complications. Tunnel widening (TW) as one of the complications has been topic of discussion in orthopaedic literature recently. Type of graft fixation in tibia has been considered as cause of tunnel widening. We compared TW in grafts fixed with suture disc and interference screw, evaluated type of tunnel widening in tibia and its correlation in terms of radiology and function. Methodology: A cohort of 30 patients operated with arthroscopic ACL reconstruction were evaluated over a period of three years. Patients were divided between suture disc group and interference screw group for tibial fixation and femoral fixation was kept same in both the groups i.e. suspensory. We assessed amount of tunnel widening in tibia with radiographs and CT scan at 3 months 6 months and 12 months, divided TW into cavity type, cone type and line type. We tried to correlate amount of TW with type of tibial fixation and its functional score. We also tried to correlate type of TW and functional score. Results: Amount of TTW was more with interference screw group than suture disc group at 12 months. Lysholm score was almost equal in both the groups. Type of tunnel widening: cavity type is more common 53 %, followed by cone type 26% and then line type 21 %. TTW was highest i.e. 12.11mm in cavity type, followed by 12.04 in cone type and 11.72 in line type. Functional score was almost similar in all types. Conclusion: Both the groups i.e. suture disc and interference group had considerable tunnel widening but the difference between them is negligible to conclude superiority of on over the other. Functional score is similar in both the groups. Regarding type of tibial tunnel widening, cavity type TTW is most common (53%), followed by cone type (26%) and least common is line type widening (21 %). Maximum tunnel widening is in cavity type and if it’s less than 12 mm then functional score is good in those patients. There is no significant correlation between the type of TTW and clinical stability and functional scores. But it has surgical implications as more tunnel widening leaves lesser bone bed for revision ACL reconstruction.
Structural Health Monitoring of Composite Wind Turbine Blades: Challenges, Issues and Potential Solutions

Wind turbine (WT) blades are vulnerable to failure as they are exposed to direct harsh environment, suffering constantly varying loads by wind and cyclic fatigue load due to self-weight, experiencing extreme temperature and humidity changes, erosion and corrosion. As a consequence, blades show high failure rate and share significant downtime, which highlight the significance and essentiality of the research, development and application of blade structural health monitoring (SHM) techniques. To fulfil reliable SHM of WT blades, much effort has been spent in the past years as reported in the literature. However, to date, how to realise reliable WT blade SHM is still an open question. The previous reviews enumerate the non-destructive testing techniques that are potentially applicable to blade SHM, but they fail to indicate which technique is most suitable for blade SHM and how to implement reliable SHM of a WT blade. To fill this gap, this study is geared toward to investigate the pros and cons of existing blade SHM techniques and following which, a newly developed blade SHM technique that is effective in both damage detection and fault location is discussed.
Effects of upper body sprint interval training on endurance performance, aerobic capacity and work economy in female cross-country skiers during classical roller skiing

Introduction: Sprint interval training (SIT) in running and cycling has shown to induce larger metabolic and performance adaptations than continuous endurance training (CET), and may additionally be more effective than CET in improving anaerobic performance and neuromuscular factors. However, limited research is done on the effects of SIT during upper body exercise. Purpose: To compare the effects of upper body SIT with CET in improving endurance performance, peak aerobic capacity, work economy and kinematics in classical roller skiing, as well as upper body strength and power among endurance trained female athletes. Methods: 17 highly trained junior female cross-country skiers (age: 18.1±0.8yrs, maximal oxygen uptake (VO2max): 3.30±0.37 L . min -1 ) performed an 8-week intervention training period where the sprint interval training group (SIG, n=8) added 2 weekly sessions of six to eight 30-s maximal upper body intervals either using roller board in kneeling position or by roller ski double poling (DP). The control group (CG, n=9) added a weekly session of 45-75min of continuous low-intensity DP on roller skis. Before and after the intervention, the subjects were tested for peak velocity, peak aerobic capacity, work economy, physiological and kinematical responses during incremental DP and diagonal stride (DIA) treadmill roller skiing tests. Additionally, maximal upper body strength (1RM) and average power 40% 1RM in a poling specific strength exercise was measured. Results: There were no significant group effects on the pre-to post-changes in peak velocity in DP or DIA, although CG increased DP peak velocity by 4.5±3.5% (P=0.011). Both groups improved DP VO2peak by 0.3±0.2 L . min -1 in SIG and 0.2±0.2 L . min -1 in CG (both P<0.05). The increases in DP VO2peak did not significantly differ between groups. SIG was more effective than CG in improving DIA VO2max (+0.2±0.1 L . min -1 ; P=0.033). Additionally, SIG improved 1RM more than CG (+3.2±1.4 kg; P=0.03), with the same tendency occurring for average power (+12.1±5.9 W; P=0.057). Work economy and kinematics (cycle length or rate) did not change significantly within or between groups in any case. Conclusion: Both groups improved peak aerobic capacity in DP, but no significant group differences were found in endurance performance, work economy or kinematics in neither DP nor DIA roller skiing. SIG had larger increases than CG in DIA VO2max, as well as in upper body maximal strength and power. These findings indicate a large potential for female junior skiers to improve their physiological capacities by increased focus on upper body training in general, and that SIT tends to be particularly effective for improving strength and power characteristics.
Corporate Sustainability in Fashion and Luxury Companies

The paper deepens the notion of corporate sustainability in fashion and luxury field in order to highlight the main sustainable issues faced by companies operating in these markets. In particular, to provide a more faithful depiction of corporate sustainability in the fashion industry, two apparently opposed fashion market segments (mass-market and luxury) have been analyzed . Findings have shown how sustainability represents a critical driver of growth for both mass-market and luxury companies. In fact, they are all committed in seeking new technologies and procedures aimed at pursuing a sustainable development where focus on profit, planet and people are in balance.
Internal Corporate Governance and Financial Performance Nexus; a Case of Banks of Pakistan

The persistence of corporate governance (CG) is to expedite operative and cautious management which can transport the enduring success of the company. The performance of any firm or bank is vibrantly enhanced by corporate governance. The key contribution of this study to governance literature is that; it demonstrates how the presence of the internal governance mechanism influence the bank performance. The study makes an attempt to measure the impact of internal governance indicators (Board Structure and Ownership Structure) on the financial performance (Return on Equity, Return on Assets and Earning Per Share) of the banks of Pakistan under the presence of control variables (leverage and size). The selected sample consist of 30 banks (public, private and specialized), which are listed at Pakistan Stock Exchange (PSE) for the period 2008-2014. The study takes 30 banks listed in PSE, formerly KSE and, check how corporate governance impact on all the listed banks at PSE, irrespective of their nature of operation. Study also extended the time frame till 2014. The study comprises of three models. The regression analysis results reveal that the majority of the internal governance indicators of Model 2 and 3 show significant relationship with ROE and EPS whereas, majority of the internal governance indicators of Model 1 depict insignificant relationship with ROA. The results depict that in a developing country like Pakistan there are sound codes of corporate governance but, their proper implementation is missing.
TOPICAL REVIEW: Fermi surfaces and energy gaps in Sn/Ge(111)

One third of a monolayer of Sn adsorbed on Ge(111) undergoes a broad phase transition upon cooling from a (×)R30° normal phase at room temperature to a (3×3) phase at low temperatures. Since band-structure calculations for the ideal (×)R30° phase show no Fermi-surface nesting, the underlying mechanism for this transition has been a subject of much debate. Evidently, defects formed by Ge substitution for Sn in the adlayer, at a concentration of just a few percent, play a key role in this complex phase transition. Surface areas near these defects are pinned to form (3×3) patches above the transition temperature. Angle-resolved photoemission is employed to examine the temperature-dependent band structure, and the results show an extended gap forming in k-space as a result of band splitting at low temperatures. On account of the fact that the room temperature phase is actually a mixture of (×)R30° areas and defect-pinned (3×3) areas, the band structure for the pure (×)R30° phase is extracted by a difference-spectrum method. The results are in excellent agreement with band calculations. The mechanism for the (3×3) transition is discussed in terms of a response function and a tight-binding cluster calculation. A narrow bandwidth and a small group velocity near the Fermi surface render the system highly sensitive to surface perturbations, and formation of the (3×3) phase is shown to involve a Peierls-like lattice distortion mediated by defect doping. Included in the discussion, where appropriate, are dynamic effects and many-body effects that have been previously proposed as possible mechanisms for the phase transition.
Nouvelle approche TURTLE pour le dimensionnement et la validation de systèmes répartis temps réel

Le profil UML temps reel TURTLE supporte par l'outil open-source TTool offre un cadre formel pour la modelisation et la verification formelle de systemes temps reel communicants. Cet article ajoute a la methode TURTLE un volet "calcul reseau" adapte au traitement des systemes temps reel repartis a large echelle. Ce volet permet de dimensionner le reseau en prenant en compte les trafics des differents n\oe uds, puis d'injecter les resultats de dimensionnement dans les modelisations TURTLE. Cette approche permet au niveau des modeles TURTLE de n'explorer le systeme que pour un nombre reduit de nœuds du systeme reparti. Un systeme de video-conference au sein d'un campus universitaire sert d'etude de cas.
Investigations on breeding plans for organic dairy cattle

Based on an inquiry of ecological organisations, animal breeding organisations, and processing- and marketing facilities in Germany, different alternative breeding plans for organic cattle breeding were developed using the computer program ZPLAN. First the impact of the population size on the parameters of success was analysed. A conventional cattle breeding program was compared with an organic breeding program. The results indicate that the selection response increased with increasing population size due to improved selection of bull sires. The EU Regulations on organic farming say that the proportion of artificial insemination has to be reduced as much as possible. According to this, the influence of different proportions of artificial insemination on the monetary genetic gain was investigated. The reduction of artificial insemination below 50% led to high losses in the discounted profit. The influence of higher economic weights for functional traits on the natural selection response was investigated. An increase of the economic weights by 50% led to tolerable decreases in the natural selection response of production traits with regard to a more ecological orientated breeding goal. The effect of the variation of the test capacity and the number of test bulls on the monetary genetic gain was analysed. The optimum for the monetary genetic gain was located at a test capacity of 50%, 30 test bulls and 99 daughters per test bull.
A Stochastic Sub-gradient Method for Low Rank Matrix Completion of Collaborative Recommendation

In this paper, we focus on nuclear norm regularized matrix completion model in large matrices, and propose a new model named stochastic sub-gradient method for low rank matrix completion (SS-LRMC). To the problem of traditional SVT algorithm that would use one fixed threshold to shrink all the singular values during iterations, and the enormous computation burden when faced with large matrices, we define an adaptive singular value thresholding operator, and put forward a kind of matrix completion model applicable for user-item rating matrix of collaborative filtering. During iterations, we combine stochastic sub-gradient descent techniques with the adaptive singular value thresholding operator to obtain low rank intermediate solutions. Empirical results confirm that our proposed model and algorithm outperform several state-of-the-art matrix completion algorithms and the application to collaborative filtering recommendation can effectively solve the sparse problem of the user-item rating matrix and can significantly improve recommendation accuracy.