cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Τουριστικό μάρκετινγκ: τα δίκτυα διανομής
Creators: name: Μάγγου, Μαρία Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Τουριστική βιομηχανία
Ταξιδιωτικός πράκτορας
Διαδίκτυο
Ταξιδιωτικός οργανισμός
Tourism industry
Travel agent
Internet
Tour operator

description: Αρχικά γίνεται προσπάθεια παρουσίασης της τουριστικής βιομηχανίας. Στη συνέχεια γίνεται αναφορά στο περιεχόμενο του συστήματος διανομής και τη σημασία της χρήσης μεσαζόντων, καθώς επίσης και στη συμπεριφορά του σύγχρονου καταναλωτή. Έπειτα αναλύεται η λειτουγία-ρόλος και χαρακτηριστικά-των ταξιδιωτικών πρακτόρων και των ταξιδιωτικών οργανισμών, ενώ περιγράφονται η ανάπτυξη και τα χαρακτηριστικά του διαδικτύου ως κανάλι διανομής τουριστικών προϊόντων. Στο τέλος της εργασίας παρουσιάζεται έρευνα, η οποία πραγματοποιήθηκε τον Ιανουάριο του 2007. Σκοπός της έρευνας ήταν να διαπιστώσει, αν και σε τι ποσοστό, οι ταξιδιωτικοί καταναλωτές χρησιμοποιούν το διαδίκτυο ή τους ταξιδιωτικούς πράκτορες, όταν συλλέγουν πληροφορίες, όταν σχεδιάζουν και όταν οργανώνουν κάποιο ταξίδι.
description: This paper tries to present the characteristics of tourism indystry and also the significance of distribution channels and the use of intermediaries. It also refers to the behaviour of the modern traveler. This paper also analyses the role and the characteristics of travel agents and tour operators, while also describes the growth of internet as a distribution channel. In this paper exists also a research, which took place in January 2007. The scope of the research was to find, if and in what percent the travelers use the internet or the travel agents when they gather informations, when they plan and when they arrange a trip
The nature of star formation in distant ultraluminous infrared galaxies selected in a remarkably narrow redshift range
Creators: name: Farrah, D.
name: Lonsdale, C.
name: Weedman, D.
name: Spoon, H.
name: Rowan-Robinson, M.
name: Polletta, M.
name: Oliver, S.
name: Houck, J. R.
name: Smith, H. E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present mid-infrared spectra of thirty two high redshift ultraluminous infrared galaxies, selected via the stellar photospheric feature at rest-frame 1.6um, and an observed-frame 24um flux of >500muJy. Nearly all the sample reside in a redshift range of =1.71+/-0.15, and have rest-frame 1-1000um luminosities of 10^12.9 - 10^13.8 Lsun. Most of the spectra exhibit prominent polycyclic aromatic hydrocarbon emission features, and weak silicate absorption, consistent with a starburst origin for the IR emission. Our selection method appears to be a straightforward and efficient way of finding distant, IR-luminous, star-forming galaxies in narrow redshift ranges. There is however evidence that the mid-IR spectra of our sample differ systematically from those of local ULIRGs; our sample have comparable PAH equivalent widths but weaker apparent silicate absorption, and (possibly) enhanced PAH 6.2um/7.7um and 6.2um/11.2um flux ratios. Furthermore, the composite mid-IR spectrum of our sample is almost identical to that of local starbursts with IR luminosities of 10^10-10^11 Lsun rather than that of local ULIRGs. These differences are consistent with a reduced dust column, which can plausibly be obtained via some combination of (1) star formation that is extended over spatial scales of 1-4Kpc, and (2) star formation in unusually gas-rich regions.
description: ApJ accepted. Higher quality figures available on request
A Case Study of an Investigation of Nitrate in Everyday Foods
Creators: name: Sirawan Boonlieng Temboonkiat, Patnarin Choomwattana, Virunpat Puengrostha
Publisher: name: Zenodo
Year: 2024

description: Unsafe food containing harmful bacteria, viruses, parasites or chemical substances cause over 200different diseases from diarrhea to cancer. There are processed meat containing nitrate which aretypically added to preserve meat, vegetables etc in the human diet, of which excessed safe amounts.Objective: To find nitrate and nitrite in foodResult: Of the 18 food samples tested, they consisted of 6 samples of sausage products, 6 samples offresh vegetables, and 6 samples of drinking water to determine the nitrate content in each product. Ofthe sausage product samples, there were a total of 6 samples found that exceeded the nitrate contentlimit, representing 100% of the total number of samples. The amount detected was 700-1000 mg/kg ofnitrate. Of the fresh vegetable samples, including eggplants, lentils, cucumbers, kale, cabbages, andcarrots, there were a total of 6 samples out of the 6 samples found that had a nitrate content that waslower than 25 mg/kg. (0%). Of the 6 samples of drinking water, there was 1 sample of mineral water, 2samples of filtered water from different homes, and 3 samples of drinking water sold in conveniencestores. We found nitrate concentration levels that were higher than the standard in 2 of the 6 samples(33%).Conclusion: Nitrate is a chemical that is found in food naturally but in some food, especially processedfoods, it is used for preserving food. In food like processed food, there are sometimes too much nitratesin there which affects the human body so we have to be cautious when buying processed food.
Experimental Validation of Eco-Driving and Eco-Heating Strategies for Connected and Automated HEVs
Creators: name: Amini, Mohammad Reza
name: Hu, Qiuhao
name: Wang, Hao
name: Feng, Yiheng
name: Kolmanovsky, Ilya
name: Sun, Jing
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: Optimization and Control (math.OC)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics

description: This paper presents experimental results that validate eco-driving and eco-heating strategies developed for connected and automated vehicles (CAVs). By exploiting vehicle-to-infrastructure (V2I) communications, traffic signal timing, and queue length estimations, optimized and smoothed speed profiles for the ego-vehicle are generated to reduce energy consumption. Next, the planned eco-trajectories are incorporated into a real-time predictive optimization framework that coordinates the cabin thermal load (in cold weather) with the speed preview, i.e., eco-heating. To enable eco-heating, the engine coolant (as the only heat source for cabin heating) and the cabin air are leveraged as two thermal energy storages. Our eco-heating strategy stores thermal energy in the engine coolant and cabin air while the vehicle is driving at high speeds, and releases the stored energy slowly during the vehicle stops for cabin heating without forcing the engine to idle to provide the heating source. To test and validate these solutions, a power-split hybrid electric vehicle (HEV) has been instrumented for cabin thermal management, allowing to regulate heating, ventilation, and air conditioning (HVAC) system inputs (cabin temperature setpoint and blower flow rate) in real-time. Experiments were conducted to demonstrate the energy-saving benefits of eco-driving and eco-heating strategies over real-world city driving cycles at different cold ambient temperatures. The data confirmed average fuel savings of 14.5% and 4.7% achieved by eco-driving and eco-heating, respectively, offering a combined energy saving of more than 19% when comparing to the baseline vehicle driven by a human driver with a constant-heating strategy.
description: 12 pages, 16 figures, SAE WCX Digital Summit, SAE Technical Paper 2021-01-0435
Investigating models for cross-linker mediated actin filament dynamics
Creators: name: Spiros, Athan Andrew
Publisher: name: University of British Columbia
Year: 2009

description: Actin, a major component of the cytoskeleton, is responsible for the shape and structural properties of many eucaryotic cells. Actin filaments are made of monomers which bind in a single strand. Cross-linkers bind two filaments together and influence the relative orientation of the filaments. Cross-linkers such as a-actinin favor parallel alignment of filaments, while others such as actin-binding protein favor orthogonal alignment. The filament length, concentration of cross-linkers and cross-linker association-dissociation rates all affect the types of network that form. The resulting network dictates the structural properties of the cell. In this thesis I study how filament length, concentration of cross-linkers and crosslinker association-dissociation rates influence actin network development. I use existing models and create new models to explore these interactions. Integro-partial differential equations and other techniques are used to model the system. Using experimentally determined biological parameters, I predict the geometry and distribution of the resulting network. Computer simulations verify the model predictions. I compare these predictions with experimental results. Increasing the cross-linker concentration first strengthens the isotropic network, but then, beyond a transition, forces the network to be inhomogeneous and more fluid-like. As the cross-linker concentration increases even further, more filaments bind to the network, resulting in a stronger, more solid actin solution. Decreasing the cross-linker dissociation rate constant has the same effects as increasing the cross-linker concentration. Finally, I find that changing the filament length greatly affects rates of diffusion, influencing instabilities. Increasing the filament length, favors alignment and clustering, as well as formation of bundles. Filament length influences the spacing between clusters. Increasing the length, forces clusters to be spaced further apart until they eventually disappear. I also find that there is an optimal length for bundle formation. When considering a distribution of filament lengths, I expect to see a wider dispersal of filaments near the bundle transition point.
Το μοντέλο αναλογικού κινδύνου του Cox στην Ανάλυση Επιβίωσης
Creators: name: Παύλου, Ελπίδα Θεοδοσίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Ανάλυση επιβίωσης
Λογοκριμένα δεδομένα
Survival analysis
Censored data

description: Το μοντέλο αναλογικού κινδύνου του Cox είναι το πιο διαδεδομένο μοντέλο στην ανάλυση επιβίωσης και χρησιμοποιείται για την εύρεση της σχέσης μεταξύ μιας μεταβλητής που δηλώνει το χρόνο επιβίωσης ενός ατόμου και άλλων συμμεταβλητών. Οι παρατηρήσεις που εκφράζουν το χρόνο επιβίωσης του ατόμου μπορεί να είναι λογοκριμένες ή και πλήρεις. Το μοντέλο του Cox μοντελοποιεί τη συνάρτηση κινδύνου σε σχέση με άλλες μεταβλητές και είναι ένα ημιπαραμετρικό μοντέλο. Η εκτίμηση των συντελεστών παλινδρόμησης επιτυγχάνεται μέσω της συνάρτησης μερικής πιθανοφάνειας όταν δεν υπάρχουν λογοκριμένες παρατηρήσεις ή μέσω παραλλαγών αυτής όταν οι παρατηρήσεις είναι λογοκριμένες
description: The Cox proportial hazards model is the most well-recognized model in survival analysis for exploring the relationship between a variable that is shows the survival timed a person and other covariates. The observations that shows the surviaval time of a person might be censored or uncensored. The Cox model is modelling the hazard function and it is a semiparamtric model. The regression coefficient are estimated by the partial likelihood function when there aren't any censored observations ir through modifications of the partial likelihood when the observations are censored
New Constraints on the Efficiencies of Ram-Pressure Stripping and the Tidal Disruption of Satellite Galaxies
Creators: name: Kang, X.
name: Bosch, Frank C. van den
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using data from the Sloan Digital Sky Survey (SDSS) it has recently been shown that the red fraction of satellite galaxies increases with stellar mass. Semi-analytical models, however, predict red satellite fractions that are independent of stellar mass, and much higher than observed. It has been argued that this discrepancy owes to the fact that the models assume that satellite galaxies are instantaneously stripped of their hot gas reservoirs at the moment they are accreted into a bigger halo. In this letter we show that the fraction of red satellites can be brought in better agreement with the data by simply decreasing this stripping efficiency. However, this also results in a red fraction of massive centrals that is much too low. This owes to the fact that the massive centrals now accrete satellite galaxies that are bluer and more gas-rich. However, if a significant fraction of low mass satellite galaxies is tidally disrupted before being accreted by their central host galaxy, as suggested by recent studies, the red fractions of both centrals and satellites can be reproduced reasonably well. A problem remains with the red fraction of centrals of intermediate mass, which is likely to reflect an oversimplified treatment of AGN feedback.
description: A few discussions added, updated to match the accepted version to ApJ Letters
The Health of Latinos in Baltimore City 2011
Creators: name: UNSPECIFIED
Publisher: name: BALTIMORE CITY HEALTH DEPARTMENT
Year: 2011
Subjects: Government Publications
Access To Healthcare
Disparities

description: Latinos comprise the fastest growing racial or ethnic group in Baltimore City and nationwide. By mid‐century, Latinos will constitute nearly one third of the nation’s population. In Baltimore City, the Latino community represents a diverse and heterogeneous group, with many different cultural heritages (Mexican, Central American, South American, Puerto Rican, Cuban, Dominican, and other Hispanic/Latino backgrounds). The community also differs widely on Language fluency, immigration status, and time and generations living in the U.S. The Latino health status report is a comprehensive review of available health data for Baltimore City’s Latino residents. It describes how the health of Baltimore Latinos,…
A Multimodal Framework for the Detection of Hateful Memes
Creators: name: Lippe, Phillip
name: Holla, Nithin
name: Chandra, Shantanu
name: Rajamanickam, Santhosh
name: Antoniou, Georgios
name: Shutova, Ekaterina
name: Yannakoudakis, Helen
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: An increasingly common expression of online hate speech is multimodal in nature and comes in the form of memes. Designing systems to automatically detect hateful content is of paramount importance if we are to mitigate its undesirable effects on the society at large. The detection of multimodal hate speech is an intrinsically difficult and open problem: memes convey a message using both images and text and, hence, require multimodal reasoning and joint visual and language understanding. In this work, we seek to advance this line of research and develop a multimodal framework for the detection of hateful memes. We improve the performance of existing multimodal approaches beyond simple fine-tuning and, among others, show the effectiveness of upsampling of contrastive examples to encourage multimodality and ensemble learning based on cross-validation to improve robustness. We furthermore analyze model misclassifications and discuss a number of hypothesis-driven augmentations and their effects on performance, presenting important implications for future research in the field. Our best approach comprises an ensemble of UNITER-based models and achieves an AUROC score of 80.53, placing us 4th on phase 2 of the 2020 Hateful Memes Challenge organized by Facebook.
Η νομική θέση της γυναίκας την περίοδο της Τουρκοκρατίας στην περιοχή της Θεσσαλίας
Creators: name: Πίσσα, Ελένη Βασιλείου
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Νομική θέση γυναίκας
Περίοδος Τουρκοκρατίας
Θεσσαλία
Legal status of woman
Othoman period
Thessaly

description: Η νομική θέση της γυναίκας την περίοδο της Τουρκοκρατίας (τέλη 17ου αι. -τέλη 19ου αι.) δεν είχε ουσιαστικές διαφορές με τη βυζαντινή περίοδο. Η γυναίκα της Θεσσαλίας νόμιμα μεταβιβάζει, παραχωρεί, δανείζει και δανείζεται, υποθηκεύει την ατομική της περιουσία, υιοθετεί, κληρονομεί, συντάσσει διαθήκη, παρίσταται αυτοπροσώπως στο δικαστήριο και διεκδικεί τα δικαιώματά της. Από την άλλη όμως, δεν είχε πρόσβαση σε δημόσια αξιώματα, δεν ήταν ικανή να μηνύσει να υπογράψει ως μάρτυρας σε διαθήκη ενώ δεν προτιμάται για επίτροπος δεν διορίζεται ως αντιπρόσωπος, εγγυητής και εκτελεστής διαθήκης. Με λίγα λόγια, η άσκηση των νομικών της διακαιωμάτων υποχωρεί υπέρ του άνδρα
description: The legal status of woman during the Othoman period (from the end of 17th century to the end of 19th century) hadn't essentials differences to the Byzantium. The woman of Thessaly is capable of transfering, of ceding, of lending or borrowing of registering a mortgage, of adopting, of inheriting, of composing a will, as well as she can appear perosnnally in the court demanding her rights. On the other hand, she was no access to public posts, she is incapable of filing a charge or signing as witness to the will and also she is not prefered to be a guardian, a proxy, a guarantor, or an executor of a will. On the whole, the man has a priority as far as his legal rights concerned
Weigh Station Bypassing
Creators: name: Southgate, Herbert F.
name: Crabtree, Joseph D.
name: Pigman, Jerry G.
name: Stamatiadis, Nikiforos
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1993
Subjects: subject: Transportation Engineering

description: A Study was initiated in May of 1990 to investigate the problem of trucks bypassing or avoiding weigh/enforcement stations in Kentucky. A literature review identified two major studies (Wisconsin and Florida) on the subject, both of which are summarized in this report. In addition, a 1989, limited-scope study of truck bypassing of weigh stations in Kentucky was reviewed and summarized.  The primary data collection effort for this study took place in the fall of 1990, centered around the Simpson County enforcement station on Interstate-55. Three potential bypass routes were identified. Automatic vehicle classification (AVC) and weight-in-motion (WIM) equipment was installed on 1-65 and on all three bypass routes. Data collection took place over a three-week period, with enforcement on the bypass routes during the second week.  Significant conclusions of the study include: 1) While weigh station bypassing does occur in Kentucky, there was no indication of significant numbers of trucks modifying their route choices due to enforcement activity on the bypass routes; 2) Average truck weights and the percentage of trucks overweight are higher on bypass routes than on Interstate routes, but this is not primarily a result of bypassing activity; 3) The majority of trucks on bypass routes have legitimate reasons (in terms of origin or destination) to be on those routes; 4) A high percentage of trucks on bypass routes have violations, regardless of whether the trucks have a local origin/destination along the route; 5) The most common inspection violations on bypass routes are safety-related equipment violations, followed by driver violations; 6) Temporary enforcement efforts on bypass routes can be effective and can be self-supporting through citation revenues; 7) Due to accuracy limitations, high speed WIM data may not be appropriate for certain uses.  The following recommendations were developed: 1) A statewide enforcement plan should be developed with increased emphasis on enforcement for non- Interstate routes; 2) Innovative options should be investigated to simplify or expedite weigh station operations; 3) Enforcement efforts on non-Interstate routes should be randomized and unpredictable and should include weighing of trucks; 4) Effectiveness measures should be developed and used to monitor non-Interstate enforcement efforts; 5) The accuracy of statewide WIM data should be assessed; 6) The potential for using statewide WIM data to identify problem areas and direct enforcement efforts should be explored, and a formal process should be established to foster this cooperative effort.
Florian Chamorel, Un destin méditerranéen. Les princes de la Maison de Savoie en Méditerranée orientale (XIVe–XVe siècle), Paris (Honoré Champion) 2023
Creators: name: Herberich, Laurin
Publisher: name: Francia-Recensio
Year: 2024

description: Florian Chamorel, Un destin méditerranéen. Les princes de la Maison de Savoie en Méditerranée orientale (XIVe–XVe siècle), Paris (Honoré Champion) 2023, 699 p. (Études d’histoire médiévale, 18), ISBN 978-2-7453-6004-5, EUR 98,00.
description: Francia-Recensio, 2024/3
Determination of the UV cut-off from the observed value of the Universe acceleration
Creators: name: Cherkas, S. L.
name: Kalashnikov, V. L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: It is shown that using of the equation of motion of the Universe scale factor allows calculation of the contribution of the vacuum fluctuations to the acceleration of the Universe expansion. Renormalization of the equation is needed only in the case of massive particles. Under a known number of the different kinds of fundamental fields, this provides determination of momentum of the ultraviolet cut-off from the observed value of acceleration.
description: 10 pages, 1 figure
Adjoints of rationally induced composition operators
Creators: name: Bourdon, Paul S.
name: Shapiro, Joel H.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Functional Analysis (math.FA)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 47B33

description: We give an elementary proof of a formula recently obtained by Hammond, Moorhouse, and Robbins for the adjoint of a rationally induced composition operator on the Hardy space H^2. We discuss some variants and implications of this formula, and use it to provide a sufficient condition for a rationally induced composition operator adjoint to be a compact perturbation of a weighted composition operator.
description: 21 pages, Published Version
Using Hydrogen as an I.C Fuel
Creators: name: Aaryan Singh
Publisher: name: Zenodo
Year: 2024

description: The small number of vehicles using hydrogen combustion engines (HICE) makes it difficult to explain howthey work. In this article we will study the hydrogen engine and its main components, its advantages,disadvantages and how the components can be modified or redesigned to reduce these disadvantages. Getting an internal combustion engine to run on hydrogen is not difficult. However, getting the internalcombustion engine running in a suitable condition is a bigger problem.The first attempt to develop a hydrogen engine was reported by the Reverend W. Cecil in 1820. Cecilpresented his work before the Cambridge Philosophical Society in a paper entitled "On the Application ofHydrogen Gas to the Production of Motive Power in Machines". The engine itself worked on a vacuumprinciple in which atmospheric pressure drives a piston back against the vacuum to produce power. Thevacuum is created by burning a mixture of hydrogen and air, which is allowed to expand and then cool.Although the engine ran satisfactorily, vacuum engines never became practical.Sixty years later, during his work with internal combustion engines in the 1860s and 1870s, Otto (theinventor of the Otto cycle) was said to have used synthetic generator gas as fuel, which probably had ahydrogen content of over 50%. Otto also experimented with gasoline, but found it dangerous to work with,prompting him to return to using gaseous fuels. But the development of the carburetor started a new era, inwhich it was possible to use gasoline practically and safely, and the interest in other fuels declined.Since then, hydrogen has been used extensively in the space program because it has the best energy-toweight ratio of any fuel. Liquid hydrogen is the preferred fuel for rocket engines and has been used in theupper stages of launch vehicles on many space missions, including the Apollo missions to the moon,Skylab, the Viking mission to Mars, and the Voyager mission to Saturn.In recent years, interest in cleaner air, along with stricter air pollution regulations and a desire to reducedependence on fossil fuels, has rekindled interest in hydrogen as an automotive fuel.
Power Laws and the Cosmic Ray Energy Spectrum
Creators: name: Hague, J. D.
name: Becker, B. R.
name: Gold, M. S.
name: Matthews, J. A. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: Statistics Theory (math.ST)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Two separate statistical tests are applied to the AGASA and preliminary Auger Cosmic Ray Energy spectra in an attempt to find deviation from a pure power-law. The first test is constructed from the probability distribution for the maximum event of a sample drawn from a power-law. The second employs the TP-statistic, a function defined to deviate from zero when the sample deviates from the power-law form, regardless of the value of the power index. The AGASA data show no significant deviation from a power-law when subjected to both tests. Applying these tests to the Auger spectrum suggests deviation from a power-law. However, potentially large systematics on the relative energy scale prevent us from drawing definite conclusions at this time.
description: 21 pages, 18 figures, submitted to Astro. Part. Phys
Contribution of Conceptual Modeling to Enhancing Historians' Intuition -Application to Prosopography
Creators: name: Akoka, Jacky
name: Comyn-Wattiau, Isabelle
name: Lamassé, Stéphane
name: Mouza, Cédric Du
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: Historians, and in particular researchers in prosopography, focus a lot of effort on extracting and coding information from historical sources to build databases. To deal with this situation, they rely in some cases on their intuition. One important issue is to provide these researchers with the information extracted from the sources in a sufficiently structured form to allow the databases to be queried and to verify, and possibly, to validate hypotheses. The research in this paper attempts to take up the challenge of helping historians capturing and assessing information throughout automatic processes. The issue emerges when too many sources of uncertain information are available. Based on the high-level information fusion approach, we propose a process that automatically supports historians' intuition in the domain of prosopography. The contribution is threefold: a conceptual data model, a process model, and a set of rules combining the reliability of sources and the credibility of information.
Computer Program for Analysis of Embankments with Tensile Elements
Creators: name: Slepak, Mikhail E.
name: Hopkins, Tommy C.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1993
Subjects: subject: Transportation Engineering

description: A generalized computer program for analyzing stability of earth structures reinforced with geosynthetics (geogrids, geotextiles etc.) was developed in this research study. The newly proposed computer program was built in such a way that a reinforced slope stability problem may be analyzed using a variety of limit equilibrium methods including Hopkins', Morgenstern and Price's, Bishop's methods, Raulin's perturbation method, as well as new perturbation methods proposed by the authors of this study. It was shown in the research study that two versions of the Bishop's method were possible in the case of reinforced analyses: the traditionally used version referred to as "incorrect" Bishop's method, and a version that strictly follows the philosophy of the original Bishop's method referred to as "correct" Bishop's method. A comprehensive analysis of different generic examples and case histories was undertaken in the research study using different limit equilibrium methods. It was shown that in an internal stability analysis of reinforced earth structures all statically consistent methods and Bishop's "correct" method provide almost the same values for safety factors. Bishop's "incorrect" method was found to significantly underestimate the factor of safety. It was also shown that the commonly used Tensar® design method tends to be conservative especially for steep slopes. In the case of overall stability of reinforced embankments on soft foundations, most methods led to some violation of admissibility criteria. The least violation of admissibility criteria was observed in a perturbation method proposed by the authors of this research study. Consequently, this method generally yields safety factors that are close to the "right" answers.
On Resumming Inflationary Perturbations beyond One-loop
Creators: name: Riotto, Antonio
name: Sloth, Martin S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is well known that the correlation functions of a scalar field in a quasi-de Sitter space exhibit at the loop level cumulative infra-red effects proportional to the total number of e-foldings of inflation. Using the in-in formalism, we explore the behavior of these infra-red effects in the large N limit of an O(N) invariant scalar field theory with quartic self-interactions. By resumming all higher-order loop diagrams non-perturbatively, we show that the connected four-point correlation function, which is a signal of non-Gaussianity, is non-perturbatively enhanced with respect to its tree-level value.
description: 17 pages, v2: minor corrections, to appear in jcap
Διερεύνηση της βιολογίας και της ανθεκτικότητας εννέα Lolium Rigidum βιοτύπων στα ζιζανιοκτόνα Chlorsulfuron και Tralkoxyodim
Creators: name: Βασιλείου, Ανθή Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Ανθεκτικότητα
Πολλαπλή ανθεκτικότητα
Ρυθμός αύξησης βιοτύπων
Lolium Rigidum-Ηρα
Als-θέση δράσης
Accase-θέση δράσης
Resistance
Lolium Rigidum ryegrass
Als-target site
Accase-target site
Multiple resistance
Biotype fitness

description: Βρέθηκε ότι ένας βιότυπος από το Καλαμωτό ανέπτυξε ανθεκτικότητα στο chlorsulfuron. Δύο από το Ζαγκλιβέρι, πολλαπλή ανθεκτικότητα, ενώ ένα από το Φιλαδέλφι μερικώς εξελισσόμενη πολλαπλή ανθεκτικότητα. Ο ευαίσθητος του Αγροκτήματος υστερούσε σε πολλά βιολογικά και μορφολογικά χαρακτηριστικά έναντι των υπολοίπων
description: We found one biotype resistant to chlorsulfuron, two biotypes with multiple resistance to chlorsulfuron and tralkoxydin and one biotype with multiple resistance in future in both herbicides. The susceptible biotype had the smallest fitness
Μελέτη της σχέσης μεταξύ της διαχείρισης γνώσης και του ηλεκτρονικού εμπορίου
Creators: name: Σγούρου, Βασιλική Θεόδωρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Διαχείριση γνώσης
Ηλεκτρονικό εμπόριο
Τεχνητή νοημοσύνη
Ευφυείς πράκτορες
Ηλεκτρονικό σύστημα προμηθειών
Ολοκληρωμένη πύλη ηλεκτρονικού εμπορίου
Knowledge management
Electronic commerce
B2B e-procurement system
Artificial intelligence
Intelligent agent
Enterprise-Wide e-commerce portal

description: Η εργασία αναφέρεται στη σχέση της διαχείρισης γνώσης (ΔΓ) με το ηλεκτρονικό εμπόριο (ΗΕ). Παρουσιάζει τα όσα έχουν υποθεί στη σχετική αρθρογραφία πάνω στο συγκεκριμένο θέμα υποστηρίζοντας συγχρόνωνς τη σύγκλιση των δύο πεδίων. Επιπλέον αναφέρεται στη συμβολή της Τεχνητής Νοημοσύνης (δηλαδή της επιστήμης των Η/Υ που μιμείται την ανθρώπινη συμπεριφορά) πάνω στις εφαρμογές του ΗΕ έχοντας ως σκοπό να περιγράψει τον τρόπο με τον οποίο επιδιώκουν να πλησιάσουν και να προσελκύσουν τον απλό δυνητικό καταναλωτή, υιοθετώντας τη γνώση και αξιοποιώντας την κατά τον πιο κατάλληλο τρόπο. Μάλιστα, για να γίνει αυτό κατανοητό, αναφέρονται στο τέλος κάποια παραδείγματα εφαρμογής λειτουργιών τεχνητής νοημοσύνης σε εμπορικούς ιστοχώρους. Με τον τρόπο αυτό γίνονται περισσότερο κατανοητές οι δυνατότητες και τα οφέλη που προσφέρει η υιοθέτησή της στο ΗΕ.
description: The current study is referred to the relation between knowlegde Management and Electronic Commerce. By posing the relative literature both issues seem to be convergent. Furthermore, the contribution of artificial intelligence on electronic commerce is analysed in order to describe the way through which we attract the simple-possible customer. Finally, to support this theory a number of examples is introduced
Rita Lizzi Testa, Giulia Marconi (dir.), The Collectio Avellana and the Development of Notarial Practices in Late Antiquity, Turnhout (Brepols) 2023
Creators: name: Markschies, Christoph
Publisher: name: Francia-Recensio
Year: 2024

description: Rita Lizzi Testa, Giulia Marconi (dir.), The Collectio Avellana and the Development of Notarial Practices in Late Antiquity, Turnhout (Brepols) 2023, 672 p. (Giornale italiano di filologia. Bibliotheca, 31), ISBN 978-2-503-58836-0, EUR 115,00.
description: Francia-Recensio, 2024/3
Evaluation of Electronic Truck Monitoring
Creators: name: Pigman, Jerry G.
name: Crabtree, Joseph D.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1993
Subjects: subject: Transportation Engineering

description: Automatic vehicle identification (AVI) and weigh-in-motion (WIM) equipment were installed at the northbound weigh/enforcement station on 1-65 in Simpson County, Kentucky. The objectives were to determine the reliability and accuracy of the equipment and to determine the benefits/costs for the trucking industry and enforcement agencies.  The test site for evaluation of the equipment became operational in July 1991 and the evaluation continued through June 1993. AVI equipment was provided by Amtech Corporation and WIM equipment by International Road Dynamics. Participating motor carriers were United Parcel Service and Averitt Express, with a total of 114 trucks equipped with transponders. The system operated the first year with the AVI and WIM systems serving only the function of verifying the passage of an equipped truck. During the second phase, the AVI/WIM system was moved to a position in advance of the station where equipped trucks could be identified and given a preclearance signal. Overall, it was determined that the electronic equipment could be used to collect data more accurately than through a manual process. However, it was also found that AVI and WlM equipment were not without problems, particularly when interfacing the two types of equipment.  Benefits gained were Increased levels of understanding of the reliability of AVI and WIM equipment Improved relationships between motor carriers and enforcement personnel were seen as a benefit. A preliminary evaluation of systemwide application of AVI does not indicate it would be cost-effective unless greater benefits were gained by motor carriers.
Carlotta Paratore Il primo Juan Ramón Jiménez. Varianti d’autore e sviluppo dei testi
Creators: name: Federici, Marco
Publisher: name: Università degli  Studi di Milano
Year: 2015

description: Carlotta Paratore. Il primo Juan Ramón Jiménez. Varianti d’autore e sviluppo dei testi
(Roma, Aracne, 2014, 120 pp. ISBN 978-88-548-7458-9)
di Marco Federici
description: Altre Modernità, No 14 (2015): Giocarsi l’identità: sport  e culture, il locale e il globale
Analysis of electrophysiological models of spontaneous secondary spiking and triggered activity
Creators: name: Enns-Ruttan, Jennifer Sylvia
Publisher: name: University of British Columbia
Year: 2009

description: We have examined two mathematical models describing the electrophysiology of a neuron and a cardiac cell, respectively, which exhibit an unusual response to high frequency stimulation. For certain parameter sets, both models behave qualitatively like the classic Hodgkin-Huxley equations for a squid giant axon; several brief depolarizing current pulses give rise to a corresponding number of action potentials followed by a return to rest. However, if the parameters are adjusted to reflect certain experimental conditions, a few "spontaneous" action potentials sometimes follow the directly induced action potentials. The number of spontaneous action potentials depends on the number and frequency of action potentials in the original spike train. Our objective was to gain a qualitative understanding of the mechanisms involved in this phenomenon and the effects of certain experimental interventions in promoting or suppressing the occurrence of the spontaneous action potentials. We first studied the Kepler and Marder (KM) model of spontaneous secondary spiking in a crab neuron. Then we examined the DiFrancesco-Noble (DN) equations for a mammalian cardiac Purkinje fiber which can exhibit a behaviour analogous to spontaneous secondary spiking, referred to in cardiac literature as triggered activity. Using a combination of bifurcation analysis and numerical computation, we showed that spontaneous action potentials are likely to occur in'both models when a critical bifurcation parameter is just to the left of a saddle-node of periodics (SNP) bifurcation. In the K M model, the neurotransmitter, serotonin, promoted spontaneous secondary spiking by shifting the bifurcation parameter closer to the SNP. Similarly, in the DN equations, application of digitalis increased the bifurcation parameter (intracellular [Na⁺]) while high extracellular [Ca²⁺] shifted the SNP to a lower value, both effects promoting triggered activity. Both models consist of an excitable subsystem and another subsystem that can build up slowly in response to action potentials. Spontaneous action potentials result from the bidirectional feedback between the two subsystems. By simplifying the K M model, we showed that a 3D model can exhibit spontaneous action potentials and that while the shape of the action potentials is unimportant, the relative time constants of the two subsystems are crucial.
Steven Vanderputten (ed.), Rethinking Reform in the Latin West, 10th to Early 12th Century, Boston, Massachusetts (Brill) 2023
Creators: name: Wagner, Anne
Publisher: name: Francia-Recensio
Year: 2024

description: Steven Vanderputten (ed.), Rethinking Reform in the Latin West, 10th to Early 12th Century, Boston, Massachusetts (Brill) 2023, XIII–340 p., ISBN 978-90-04-54642-4, EUR 200,45.
description: Francia-Recensio, 2024/3
Renée Ferrer, Racconti dall’isola senza mare
Creators: name: Magnani, Ilaria
Publisher: name: Università degli  Studi di Milano
Year: 2015

description: Renée Ferrer, Racconti dall’isola senza mare
(Salerno-Milano, Oèdipus, 2014, 120 pp. ISBN 978-88-7341-191-8,
traduzione di Maria Gabriella Dionisi)
di Ilaria Magnani
description: Altre Modernità, No 14 (2015): Giocarsi l’identità: sport  e culture, il locale e il globale
René Guillot, Le blanc qui s’était fait nègre
Creators: name: Zullo, Federica
Publisher: name: Università degli  Studi di Milano
Year: 2015

description: René Guillot, Le blanc qui s’était fait nègre
(Parigi, L’Harmattan, 2013, pp. 143, ISBN 978-2-343-00799-1. Présentation de Maria Chiara Gnocchi)
di Federica Zullo
description: Altre Modernità, No 14 (2015): Giocarsi l’identità: sport  e culture, il locale e il globale
AMLSI: A Novel Accurate Action Model Learning Algorithm
Creators: name: Grand, Maxence
name: Fiorino, Humbert
name: Pellier, Damien
Publisher: name: arXiv
Year: 2020
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: This paper presents new approach based on grammar induction called AMLSI Action Model Learning with State machine Interactions. The AMLSI approach does not require a training dataset of plan traces to work. AMLSI proceeds by trial and error: it queries the system to learn with randomly generated action sequences, and it observes the state transitions of the system, then AMLSI returns a PDDL domain corresponding to the system. A key issue for domain learning is the ability to plan with the learned domains. It often happens that a small learning error leads to a domain that is unusable for planning. Unlike other algorithms, we show that AMLSI is able to lift this lock by learning domains from partial and noisy observations with sufficient accuracy to allow planners to solve new problems.
description: 8 pages
Global disease spread: statistics and estimation of arrival times
Creators: name: Gautreau, Aurelien
name: Barrat, Alain
name: Barthelemy, Marc
Publisher: name: arXiv
Year: 2008
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: We study metapopulation models for the spread of epidemics in which different subpopulations (cities) are connected by fluxes of individuals (travelers). This framework allows to describe the spread of a disease on a large scale and we focus here on the computation of the arrival time of a disease as a function of the properties of the seed of the epidemics and of the characteristics of the network connecting the various subpopulations. Using analytical and numerical arguments, we introduce an easily computable quantity which approximates this average arrival time. We show on the example of a disease spread on the world-wide airport network that this quantity predicts with a good accuracy the order of arrival of the disease in the various subpopulations in each realization of epidemic scenario, and not only for an average over realizations. Finally, this quantity might be useful in the identification of the dominant paths of the disease spread.
description: J. Theor. Biol., in press
QCD phase diagram at finite isospin and baryon chemical potentials with the self-consistent mean field approximation
Creators: name: Wu, Zu-Qing
name: Ping, Jia-Lun
name: Zong, Hong-Shi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The self-consistent mean field approximation of two-flavor NJL model with introducing a free parameter $α$ to reflect the competition between "direct" channel and the "exchange" channel, is employed to study QCD phase structure at finite isospin chemical potential $μ_I$, finite baryon chemical potential $μ_B$ and finite temperature $T$, especially the location of the QCD critical point. It is found that, for fixed isospin chemical potentials the lower temperature of phase transition is obtained with $α$ increasing in the $T-μ_I$ plane, and the largest difference of the phase transition temperature with different $α$'s appears at $μ_I \sim 1.5m_π$. At $μ_I=0$ the temperature of the QCD critical end point (CEP) decreases with $α$ increasing, while the critical baryon chemical potential increases. At high isospin chemical potential ($μ_I=500$ MeV), the temperature of the QCD tricritical point (TCP) increases with $α$ increasing, and in the regions of low temperature the system will transit from pion superfluidity phase to the normal phase as $μ_B$ increases. At low temperatures, the critical temperature of QCD phase transition with different $α$'s rapidly increases with $μ_I$ at the beginning, and then increases smoothly around $μ_I>300$ MeV. In high baryon density region, the increase of the isospin chemical potential will raise the critical baryon chemical potential of phase transition.
description: 7 pages, 9 figures. arXiv admin note: substantial text overlap with arXiv:2003.02988
Experimental observation of turbulent coherent structures in a superfluid of light
Creators: name: Eloy, Aurélien
name: Boughdad, Omar
name: Albert, Mathias
name: Larré, Pierre-Élie
name: Mortessagne, Fabrice
name: Bellec, Matthieu
name: Michel, Claire
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We experimentally explore the rich variety of nonlinear coherent structures arising in a turbulent flow of superfluid light past an obstacle in an all-optical configuration. The different hydrodynamic regimes observed are organised in a unique phase diagram involving the velocity of the flow and the diameter of the obstacle. Then, we focus on the vortices nucleated in the wake of the obstacle by investigating their intensity profile and the dependence of the radius of their core on the healing length. Our results pave the way for further investigations on turbulence in photon superfluids and provide versatile experimental tools for simulating quantum transport with nonlinear light.
Peter Bruns, Thomas Kremer, Andreas Weckwerth (Hg.), Sterben & Töten für Gott? Das Martyrium in Spätantike und frühem Mittelalter. Internationale Tagung in Rom vom 20. bis 23. Februar 2019, Münster (Aschendorff) 2022
Creators: name: Herbers, Klaus
Publisher: name: Francia-Recensio
Year: 2024

description: Peter Bruns, Thomas Kremer, Andreas Weckwerth (Hg.), Sterben & Töten für Gott? Das Martyrium in Spätantike und frühem Mittelalter. Internationale Tagung in Rom vom 20. bis 23. Februar 2019, Münster (Aschendorff) 2022, XI–391 S. (Koinonia-Oriens, 57), ISBN 978-3-402-22524-0, EUR 49,00.
description: Francia-Recensio, 2024/3
Multilevel Laser Induced Continuum Structure
Creators: name: Zlatanov, K. N.
name: Vitanov, N. V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Laser-induced-continuum-structure(LICS) allows for coherent control techniques to be applied in a Raman type system with intermediate continuum state. To this end the standard LICS problem treats two bound states coupled to one or more continua states. In this paper we discuss the simplest non-trivial multilevel generalization of LICS coupling two bound levels, each composed of two degenerate states through a common continuum state. We reduce the complexity of the effective system of bound states by switching to a rotated basis in which different sub-systems of lower dimension evolve independently. We derive a trapping condition and explore the dynamics of the sub-systems under different initial conditions.
Belle S. Tuten, Daily Life of Women in Medieval Europe, Santa Barbara, Denver (Greenwood Publishing Inc.) 2022
Creators: name: Claustre, Julie
Publisher: name: Francia-Recensio
Year: 2024

description: Belle S. Tuten, Daily Life of Women in Medieval Europe, Santa Barbara, Denver (Greenwood Publishing Inc.) 2022, 224 p. (The Greenwood Press Daily Life Through History Series), ISBN 978-1-4408-7234-1, EUR 53,05.
description: Francia-Recensio, 2024/3
Joanna Story, Charlemagne and Rome. Alcuin and the Epitaph of Pope Hadrian I, Oxford (Oxford University Press) 2023
Creators: name: Scholz, Sebastian
Publisher: name: Francia-Recensio
Year: 2024

description: Joanna Story, Charlemagne and Rome. Alcuin and the Epitaph of Pope Hadrian I, Oxford (Oxford University Press) 2023, 432 p. (Medieval History and Archaeology), ISBN 978-0-19-920634-6, EUR 116,44.
description: Francia-Recensio, 2024/3