Miracle-dz/UniFAR-FTUs huggingface dataset:
Athens Institute for Education and Research ATINER ATINER ' s Conference Paper Series ENV 2015-1451

The structure and surface properties of monometallic (Co or Ni) and bimetallic CoNi catalysts supported on MgAl2O4 for hydrogen production were studied applying different techniques for physicochemical characterization such as: XRD, TPR, XPS and XANES. The test reaction was ethanol steam reforming carried out at temperature interval of 250 0 -750 0 C and ratio H2O/C2H5OH of 3/1. It was shown that the different behavior of catalysts in the C-C breaking depends mainly on the oxidation state of metal components. It was detected that the acetaldehyde production is large when the oxidation degree of metal components is maximum, i.e. the ethanol oxidative dehydrogenation takes place. Increasing the degree of metallic area in Ni and CoNi catalysts leaded to easily C-C bond cleavage, producing CO, CO2 and H2.
Semantic domain and grammatical class effects in the picture–word interference paradigm

Grammatical effects in picture–word interference experiments have been argued to reflect grammatical constraints during lexicalisation. Alternative views hold that those effects derive from the coincidence of semantic and grammatical differences between candidates. We present three experiments conducted in Spanish. Semantic relatedness between target and distracters (related or unrelated), as well as grammatical class (nouns or verbs) and semantic domain (objects or actions) of the distracters were manipulated in infinitive or inflected action naming tasks. Whereas related action-words, but not object-nouns, produced longer reaction times irrespective of their grammatical class in the infinitive condition, only related verbs slowed latencies in the inflected condition. Our results suggest that speech production relies on the exclusion of candidate responses that do not fulfil task-pertinent criteria like membership in the appropriate semantic domain or grammatical class. Taken together, these findings are explained by a response-exclusion account of speech output. This and alternative hypotheses are discussed.
Draft 2 Title : No evidence of hyperphagia during pre-hibernation in a northern population of little brown bats ( Myotis lucifugus )

During autumn, temperate bats must deposit fat stores for hibernation. Populations at high latitudes face four challenges: a shorter active season and shorter nights during the active season (less time to accumulate fat), a longer hibernation period (larger fat store needed), and colder nights (reduced prey availability). Mating also occurs during the pre-hibernation period, placing time constraints for mating and fattening on northern populations. We tested the hypothesis that these factors constrain pre-hibernation foraging in northern populations of little brown bats (Myotis lucifugus LeConte, 1831). We measured plasma triglyceride concentration to study pre-hibernation fueling rates of a population near the northern range limit of the species, and compared our results with previously published results from a more southern population. In contrast to bats at lower latitude, we found consistently low concentrations of plasma triglycerides, indicating a low fuelling rate throughout the pre-hibernation period. However, despite an apparently low fuelling rate, bats achieved a substantially greater body mass. The discrepancy between populations suggests that environmental constraints lead northern populations to employ different behavioural or physiological strategies to prepare for hibernation.
Hormones and Nocturia: Guidelines for Medical Treatment?

Nocturnal polyuria (NP) is an important cause of nocturia and it is related to an imbalance in water and/or sodium homeostasis. Antidiuretic hormone (ADH) and atrial natriuretic peptide (ANP) are believed to play an important role in this excessive urine production overnight, however, many other hormones are involved. ADH and ANP are both directly and indirectly influenced by the renin-angiotensin-aldosterone system (RAAS), prostaglandins antagonize both ADH and RAAS and sex hormones have a predominantly antidiuretic effect by stimulating ADH and RAAS, meaning that any disturbance can lead to an imbalance in diuresis. Since nocturia is a condition affecting sleep, melatonin secretion can also be affected, leading to a decrease in the antidiuretic effect and to an increase of nocturnal urine production. Depending on the underlying condition affecting any of these hormones, a more specific therapeutic approach might lead to a restoration of the normal diuresis cycle and to a good night’s sleep. The characteristics of each of these hormones, the pathophysiology in NP and the therapeutic implications are set out in this review.
Practitioner Attitudes and Beliefs Regarding the Role Animals Play in Human Health

Many studies have evaluated the effectiveness of animals in improving patient outcomes, such as their ability to improve cardiovascular health or alleviate depression symptoms.nHowever, little research has been done to evaluate the beliefs of practitioners about the role that animals can play in human health. Since practitioners are gatekeepers to treatments, understanding their beliefs about animalsr utility in human health interventions is fundamental to the mainstream.
SOFT-SLAM : Computationally Efficient Stereo Visual SLAM for Autonomous UAVs

Autonomous navigation of unmanned aerial vehicles (UAVs) in GPS-denied environments is a challenging problem, especially for small-scale UAVs characterized by small payload and limited battery autonomy. Possible solution to the aforementioned problem is vision-based simultaneous localization and mapping (SLAM), since cameras, due to their dimensions, low weight, availability, and large information bandwidth, circumvent all the constraints of UAVs. In this paper we propose a stereo vision SLAM yielding very accurate localization and a dense map of the environment developed with the aim to compete in the European Robotics Challenges (EuRoC) targeting airborne inspection of industrial facilities with small-scale UAVs. The proposed approach consists of a novel stereo odometry algorithm relying on feature tracking (SOFT), which is currently ranking first among all stereo methods on the KITTI dataset. Relying on SOFT for pose estimation, we build a feature-based pose graph SLAM solution, which we dub SOFT-SLAM. SOFT-SLAM has a completely separated odometry and mapping threads supporting large loop-closing and global consistency. It also achieves a constant-time execution rate of 20 Hz with deterministic results using only two threads of an onboard computer used in the challenge. The UAV running our SLAM algorithm obtained the highest localization score in the EuRoC Challenge 3, Stage IIa– Benchmarking, Task 2. Furthermore, we also present an exhaustive evaluation of SOFTSLAM on two popular public datasets and compare it to other state-of-the-art approaches; namely, ORB-SLAM2 and LSD-SLAM. The results show that SOFT-SLAM obtains better localization accuracy on the majority of datasets sequences, while also having lower runtime.
Lefschetz Properties and Artinian Algebras

Both weak and strong Lefschetz properties can be defined for an endomorphism of a finite graded vector space over a field. Thus the definition can be understood by even beginning graduate students of mathematics, and the basics of the theory of Lefschetz properties could become part of the tool kit of all mathematicians. As such the theory does not belong to a particular field of mathematics. The strong Lefschetz property (in the narrow sense) can be interpreted as a representation of the Lie algebra sl(2). The Clebsch–Gordan decomposition of modules over sl(2) is the foundation of this theory. It was discovered by a physicist although it is purely mathematical in nature. In quantum mechanics it is used for the “addition of angular momentum”. It provides the irreducible decomposition of the tensor product of SO(3)-modules. (The Lie algebras so(3) and su(2) are isomorphic and su(2) and sl(2) have the same types of irreducible representations. ) The origin of the strong Lefschetz property is the Hard Lefschetz Theorem for the cohomology rings of projective non-singular algebraic varieties over the complex number field (or more generally, compact complex manifolds). The homology and cohomology rings can be computed in many ways; using homology of topological spaces, singular cohomology, deRham cohomology, sheaf cohomology, etc. It is an amazing fact that they all result in the same cohomology rings. In an unexpected application, it was used by R. Stanley in 1980 to prove that certain posets have the Sperner property [33]. For commutative algebraists the Hard Lefschetz Theorem of cohomology rings was a powerful tool to compute the Rees number of Artinian rings. The Clebsch–Gordan decomposition can be used to prove the flat extension theorem which has developed into a powerful tool for the study of the strong Lefschetz property. The strong Lefschetz property of monomial complete intersections is an immediate corollary. (It leaves us with a philosophical question: why is sl(2) so powerful? ) Springer Lecture Notes 2080, “The Lefschetz Properties”, published in September 2013, is probably the first book on this subject [13]. It is written from the viewpoint of commutative algebra, but, unlike the traditional treatment of Artinian rings, the authors regard Artinian rings as cohomology rings of some (probably non-existent) algebraic varieties. In the last chapter of this book the authors show an interesting application of the Schur-Weyl duality theorem. The timely appearance of the book “On the Geometry of Some Special Projective Varieties” by Francesco Russo [28] coincident with our WorkShop, provides an addition to the meagre literature on this subject. It
Drifting to oblivion? Rapid genetic differentiation in an endangered lizard following habitat fragmentation and drought

The frequency and severity of habitat alterations and disturbance are predicted to increase in upcoming decades, and understanding how disturbance affects population integrity is paramount for adaptive management. Although rarely is population genetic sampling conducted at multiple time points, pre‐ and post‐disturbance comparisons may provide one of the clearest methods to measure these impacts. We examined how genetic properties of the federally threatened Coachella Valley fringe‐toed lizard (Uma inornata) responded to severe drought and habitat fragmentation across its range.
Photothermal heterodyne imaging of individual metallic nanoparticles: Theory versus experiment

We present the theoretical and detailed experimental characterizations of photothermal heterodyne imaging. An analytical expression of the photothermal heterodyne signal is derived using the theory of light scattering from a fluctuating medium. The amplitudes of the signals detected in the backward and forward configurations are compared and their frequency dependences are studied. The application of the photothermal heterodyne detection technique to the absorption spectroscopy of individual gold nanoparticles is discussed and the detection of small individual silver nanoparticles is demonstrated.
The Long-Term Impacts of Violent Conflicts on Human Capital: U.S. Bombing and Education, Earnings, Health, Fertility and Marriage in Cambodia

We combined household surveys and the intensity of bombing to investigate the long-term impact of U.S. bombing during the 1969-1973 period on education, earnings, health, fertility and marriage in Cambodia. The novelty of this paper consists of the use of the quantity of bombs dropped in each geographic district, which allows the estimation of the effects of the intensity of bombing. Taking into account this intensive margin adds significant insights to using a binary exposure to bombing that has been reported in previous research. We find that one standard deviation increase in the intensity of bombing during 1969-1973 reduced years of schooling by about 0.11-0.23. The effects for men are larger than those for women. Fertility (total births) increased by 0.20 and age at first marriage for girls declined by 0.32 year. The reduction in years of education completed do not seem to have affected earnings, however. Similarly, we did not detect any significant effect on health.
Oviposition behavior and development of Pseudacteon flies (Diptera: Phoridae), parasitoids of Solenopsis fire ants (Hymenoptera: Formicidae).

We studied the oviposition behavior and larval development of Pseudacteon phorid flies, which are parasitoids of Solenopsis fire ants. Four South American Pseudacteon spp. , P. litoralis Borgmeier, P. tricuspis Borgmeier, P. wasmanni (Schmitz) and P. curvatus Borgmeier (which attack S. invicta Buren), and 2 North American Pseudacteon spp. , P. browni Disney and P. crawfordi Coquillett (which attack S. geminata [F.]), were evaluated. In laboratory tests, larger Pseudacteon spp. attacked larger Solenopsis workers. The mean worker size preferred was significantly larger than the colony mean worker size for all but the smallest phorid species, P. curvatus , which preferred workers significantly smaller than the colony mean. Within Pseudacteon spp. , larger females preferred larger workers, but this relationship was significant only for the 2 North American species. Natural parasitism rates of Solenopsis workers by the 2 North American Pseudacteon spp. in the field were low (0–2.42% per colony), but >90% of the overall size range of worker ants showed evidence of parasitism. Between 11.8 and 31.0% of apparent oviposition attempts resulted in successful parasitism. Mean larval development times ranged from 13.0 to 18.4 d at 30°C and were shorter for North American species. Larval stages required 24.8–36.5% longer to develop at 25°C than at 30°C. Mean pupal development times ranged from 15.6 to 18.7 d at 30°C. In general, larger Pseudacteon spp. had longer larval and pupal development times. Overall, North and South American Pseudacteon spp. were similar in terms of oviposition behavior and development.
Differential Effects of Workplace Stressors on Innovation: An Integrated Perspective of Cybernetics and Coping

It is now consensus that engaging in innovative work behaviours is not restricted to traditional innovation jobs (e.g., research and development), but that they can be performed on a discretionary basis in most of today’s jobs. To date, our knowledge on the role of workplace stressors for discretionary innovative behaviour, in particular for innovation implementation is limited. We draw on a cybernetic view as well as on a transactional, coping-based perspective with stress to propose differential effects of stressors on innovation implementation. We propose that work demands have a positive effect on innovation implementation, whereas role-based stressors i.e., role conflict, role ambiguity, and professional compromise – have a negative effect. We conducted a time-lagged, survey-based study in the health care sector (Study 1, UK: N = 235 nurses). Innovation implementation was measured two years after the assessment of the stressors. Supporting our hypotheses, work demands were positively, role ambiguity and professional compromise negatively related to subsequent innovation implementation. We also tested organizational commitment as a mediator, but there was only partial support for the mediation. To test the generalizability of the findings, we replicated the study (Study 2, Germany: employees from various professions, N = 138, time lag 2 weeks). Again, work demands were positively, role ambiguity and professional compromise negatively related to subsequent innovation implementation. There was no support for strain as a mediator. Our results suggest differential effects of work demands and role stressors on innovation implementation, for which the underlying mechanism still needs to be uncovered.
Phenolic content, antioxidant capacity, radical oxygen species scavenging and lipid peroxidation inhibiting activities of extracts of five black chokeberry (Aronia melanocarpa (Michx.) Elliot) cultivars

Black chokeberries (Aronia melanocarpa (Michx.) Elliot) are species, the fruit of which are considered to be one of the most valuable sources of phenolic substances and the research in the field of the fruit utilization as a food supplement is more than topical. Nevertheless, as far as this species is concerned, in particular cultivars there are differences which are caused by both their origin and genetic predispositions. Therefore, the aim of our measurement was to compare five widely grown cultivars of this plant, namely ´Aron´ which is Danish in origin, ´Fertodi´ which is Hungarian in origin, ´Hugin´ which is of Swedish origin, ´Nero´ which is of Czech origin and ´Viking´ which is Finnish in origin. The highest contents of total phenolics (TPC) were observed in the cultivar ´Viking´ with the value of 12.85 grams of gallic acid/kg FM and in the cultivar ´Nero´ the value reached 11.12 grams of gallic acid/kg FM. Furthermore, in both mentioned cultivars the values of total antioxidant capacity (TAC) were the highest. The correlation coefficient between TPC and TAC was r2 = 0.943. The content of chlorogenic and neochlorogenic acid showed an influence on TAC (r2 = 0.788 and r2 = 0.940). For comparison, scavenging activity of reactive oxygen species (superoxide anion, hydroxyl radical and nitric oxide) was determined by using 25% methanolic extracts of fruit of particular cultivars. In addition, antioxidant potential was assessed using the rat liver slice model. Similarly, the highest values of scavenging activity were found in the cultivars ´Viking´ and ´Nero´ which seem to be most promising for further utilization in alimentary and pharmaceutical practices. Key words: Chokeberry, phenolics, antioxidant capacity, ROS, lipid peroxidation.
MICROFLUIDIC CHROMATIN IMMUNOPRECIPITATION ASSAY FOR HISTONE MODIFICATION ANALYSIS BASED ON 50 CELLS

Histone modifications are important epigenetic mechanisms involved in eukaryotic gene regulation. Chromatin immunoprecipitation (ChIP) assay serves as the prime technique to characterize the genomic locations associated with histone modifications. However, traditional tube-based ChIP assays rely on large numbers of cells as well as laborious and time-consuming procedures. Here we demonstrate a novel microfluidics-based native ChIP assay which dramatically reduces the required cell number and the assay time by conducting cell collection, cell lysis, chromatin fragmentation, immunoprecipitation, and washing on a microchip. Coupled with real-time PCR, our assay permits the analysis of histone modifications from as few as ~50 cells within 8.5 h. 7 cells) due to sample loss after multiple steps and inefficient immunoprecipitation. This poses a serious challenge for studying epigenetic regulation networks during the processes of stem cell differentiation, embryo development and oncogenesis, because large amounts of primary cells or patient tissue biopsies are hard to harvest. In addition, conventional ChIP procedures involve complex and tedious manual steps including tube-transfer, centrifugation, pipetting, and vortexing. The long assay time (typically 2-7 days) tends to cause substantial material loss, sample contamination and experimental errors. There has been substantial effort in recent years on modifying conventional ChIP protocols to allow use of small cell populations with short assay times (1, 2). In spite of the success, most of these improved protocols still involve a significant amount of manual processing. The manual handling requires substantial labor and experience from the operator and more importantly creates a source for inconsistencies in the results due to human errors. In this report, we demonstrate a microfluidic chip that integrates all the steps involved in a ChIP assay with the exception of DNA purification and real-time PCR. The microscale reaction drastically improved the assay sensitivity, and the sensitivity was also critically affected by the amount of magnetic beads used for immunoprecipitation. By optimizing the bead amount, we demonstrated microfluidic ChIP assays based on as few as ~50 cells that were finished within ~8.5 h.
The Equity Premium in a Production Economy; A New Perspective Involving Recursive Utility

We study a rational expectations' competitive equilibrium in a production economy, i.e., a system of prices at which firms' profit maximizing production decisions and individuals' preferred affordable consumption choices equate supply and demand in every market. We derive the equilibrium price of the firm and the equilibrium short term interest rate, the optimal per capita consumption in society, as well as the risk premium on equity. First a simple linear production technology with constant coefficients is studied, then a more general technology, and finally a general production economy with recursive utility is analyzed by the use of the stochastic maximum principle. While the two first models can not explain the empirics well using conventional preferences, the latter model is found to be much more promising in this regard. Wa also demonstrate a simple proof for the ICAPM.
A centromere-specific probe for fluorescence in situ hybridization on chromosomes of Apis mellifera L

De l'ADN repetitif avec une teneur en GC de 27% a ete isole a l'aide d'un gradient de centrifugation au CsCl-bisbenzimide. L'ADN satellite a ete partiellement restreint et clone avec pUC19. Les clones renfermant l'ADN repetitif d'abeilles ont ete isoles par la methode d'hybridation sur colonies et utilises comme sonde pour l'hybridation par fluorescence in situ (FISH). La preparation des chromosomes a ete faite a partir des testicules de larves de mâles et la sonde ADN GC-6 hybridee a l'aide de la technique FISH aux endroits homologues sur le chromosome
Elliptic curves of unbounded rank and Chebyshev's bias

We establish a conditional equivalence between quantitative unboundedness of the analytic rank of elliptic curves over $\mathbb Q$ and the existence of highly biased elliptic curve prime number races. We show that conditionally on a Riemann Hypothesis and on a hypothesis on the multiplicity of the zeros of $L(E,s)$, large analytic ranks translate into an extreme Chebyshev bias. Conversely, we show under a certain linear independence hypothesis on zeros of $L(E,s)$ that if highly biased elliptic curve prime number races do exist, then the Riemann Hypothesis holds for infinitely many elliptic curve $L$-functions and there exist elliptic curves of arbitrarily large rank.