cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Periodic Monopoles
Creators: name: Ward, R. S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This paper deals with static BPS monopoles in three dimensions which are periodic either in one direction (monopole chains) or two directions (monopole sheets). The Nahm construction of the simplest monopole chain is implemented numerically, and the resulting family of solutions described. For monopole sheets, the Nahm transform in the U(1) case is computed explicitly, and this leads to a description of the SU(2) monopole sheet which arises as a deformation of the embedded U(1) solution.
description: 10 pages, 2 figures. Typos in eqns (13) and (14) corrected
K-Nearest Neighbour and Support Vector Machine Hybrid Classification
Creators: name: Hafiz, A. M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: In this paper, a novel K-Nearest Neighbour and Support Vector Machine hybrid classification technique has been proposed that is simple and robust. It is based on the concept of discriminative nearest neighbourhood classification. The technique consists of using K-Nearest Neighbour Classification for test samples satisfying a proximity condition. The patterns which do not pass the proximity condition are separated. This is followed by sifting the training set for a fixed number of patterns for every class which are closest to each separated test pattern respectively, based on the Euclidean distance metric. Subsequently, for every separated test sample, a Support Vector Machine is trained on the sifted training set patterns associated with it, and classification for the test sample is done. The proposed technique has been compared to the state of art in this research area. Three datasets viz. the United States Postal Service (USPS) Handwritten Digit Dataset, MNIST Dataset, and an Arabic numeral dataset, the Modified Arabic Digits Database, MADB, have been used to evaluate the performance of the algorithm. The algorithm generally outperforms the other algorithms with which it has been compared.
Wendland, Heinz-Dietrich: Die ökumenische Bewegung und das II. vatikanische Konzil
Creators: name: Ringeling, Hermann
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 18 Nr. 2 (1969): Ökumenische Rundschau, Band 18, Heft 2
[Brev til DKNVS]
Creators: name: Mejdell, Christian Henrik N.
name: Det Kongelige Norske Videnskabers Selskab (DKNVS)
Publisher: name: Unknown
Year: 1845

description: Ønsker å låne noen bøker
description: I slektsboka skrives Kristian. Polydoc nr. 1: 2751. Polydoc nr. 2: 2184.
Multidimensional semi-gap solitons in a periodic potential
Creators: name: Baizakov, Bakhtiyor B.
name: Malomed, Boris A.
name: Salerno, Mario
Publisher: name: arXiv
Year: 2005
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: The existence, stability and other dynamical properties of a new type of multi-dimensional (2D or 3D) solitons supported by a transverse low-dimensional (1D or 2D, respectively) periodic potential in the nonlinear Schrödinger equation with the self-defocusing cubic nonlinearity are studied. The equation describes propagation of light in a medium with normal group-velocity dispersion (GVD). Strictly speaking, solitons cannot exist in the model, as its spectrum does not support a true bandgap. Nevertheless, the variational approximation (VA) and numerical computations reveal stable solutions that seem as completely localized ones, an explanation to which is given. The solutions are of the gap-soliton type in the transverse direction(s), in which the periodic potential acts in combination with the diffraction and self-defocusing nonlinearity. Simultaneously, in the longitudinal (temporal) direction these are ordinary solitons, supported by the balance of the normal GVD and defocusing nonlinearity. Stability of the solitons is predicted by the VA, and corroborated by direct simulations.
description: European Physical Joournal D, in press
Analyse der Bestandsentwicklung landwirtschafticher Familienarbeitskrafte in Westdeutschland
Creators: name: Pavel, Ferdinand
name: Pavel, Ferdinand
Publisher: name: Unknown
Year: 1997
Subjects: Labor and Human Capital

description: The purpose of this paper is to identify the explanatory variables of the changes of family labour in West German agriculture over the last thirty years. Labour stocks are distinguished into full and part time labour for both sexes separately. Demographic influences imply quasi autonomous changes of labour stocks which are quantified using cohort analysis. The rates of change exceeding this quasi autonomous component are regressed on explanatory variables. The most significant influence is found for the expected incomes in agriculture, the opportunity costs of family labour and general labour market conditions. Ziel der Analyse ist es, die Bestimmungsgrunde der Bestandsentwicklung landwirtschaftlicher Familienarbeitskrafte in Westdeutschland und deren Einfluss in den letzten dreissig Jahren darzustellen. Dabei erfolgt eine differenzierte Betrachtung fur voll- und teilbeschaftigte sowie mannliche und weibliche Arbeitskrafte. Demographische Einflusse fuhren zu einer quasi autonom ablaufenden Bestandsanderung, die im Rahmen einer Kohortenanalyse quantifiziert werden kann. Anschliessend wird versucht, die uber die demographische Komponente hinaus gehenden Anderungsraten in Abhangigkeit bestimmter Erklarungsvariablen okonometrisch zu schatzen. Als statistisch signifikant erweist sich dabei vor allem der Einfluss der erwarteten landwirtschaftlichen Einkommen, der Opportunitatskosten landwirtschaftlicher Erwerbstatigkeit und der ausserlandwirtschaftlichen Arbeitsmarktlage.
Segmenting breast cancerous regions in thermal images using fuzzy active contours
Creators: name: Ghayoumi Zadeh, Hossein
name: Haddadnia, Javad
name: Rahmani Seryasat, Omid
name: Mostafavi Isfahani, Sayed Mohammad
Publisher: name: Technische Universität Dortmund
Year: 2016
Subjects: subject: breast cancer
subject: thermography
subject: fuzzy active contour
subject: 610

description: Breast cancer is the main cause of death among young women in developing countries. The human body temperature carries critical medical information related to the overall body status. Abnormal rise in total and regional body temperature is a natural symptom in diagnosing many diseases. Thermal imaging (Thermography) utilizes infrared beams which are fast, non-invasive, and non-contact and the output created images by this technique are flexible and useful to monitor the temperature of the human body. In some clinical studies and biopsy tests, it is necessary for the clinician to know the extent of the cancerous area. In such cases, the thermal image is very useful. In the same line, to detect the cancerous tissue core, thermal imaging is beneficial. This paper presents a fully automated approach to detect the thermal edge and core of the cancerous area in thermography images. In order to evaluate the proposed method, 60 patients with an average age of 44/9 were chosen. These cases were suspected of breast tissue disease. These patients referred to Tehran Imam Khomeini Imaging Center. Clinical examinations such as ultrasound, biopsy, questionnaire, and eventually thermography were done precisely on these individuals. Finally, the proposed model is applied for segmenting the proved abnormal area in thermal images. The proposed model is based on a fuzzy active contour designed by fuzzy logic. The presented method can segment cancerous tissue areas from its borders in thermal images of the breast area. In order to evaluate the proposed algorithm, Hausdorff and mean distance between manual and automatic method were used. Estimation of distance was conducted to accurately separate the thermal core and edge. Hausdorff distance between the proposed and the manual method for thermal core and edge was 0.4719 ± 0.4389, 0.3171± 0.1056 mm respectively, and the average distance between the proposed and the manual method for core and thermal edge was 0.0845± 0.0619, 0.0710 ± 0.0381 mm respectively. Furthermore, the sensitivity in recognizing the thermal pattern in breast tissue masses is 85 % and its accuracy is 91.98 %.A thermal imaging system has been proposed that is able to recognize abnormal breast tissue masses. This system utilizes fuzzy active contours to extract the abnormal regions automatically.
description: EXCLI Journal;Vol. 15, 2016
Veranderung von Einkommenselastizitaten im Verlauf der wirtschaftlichen Entwicklung - Problematik und Umsetzung im WATSIM
Creators: name: Von Lampe, Martin
name: Von Lampe, Martin
Publisher: name: Unknown
Year: 1998
Subjects: Demand and Price Analysis

description: This paper describes the use of income elasticities for long-term simulations of agricultural world markets, where the parameters are stemming from literature. It discusses the problem of assuming constant elasticities over time. This leads to a formulation where the income elasticities are estimated as a function of income in a cross sectional analysis. Thereby, the reflection of adjustments of consumption patterns due to growing wealth particularly in the rapidly developing Asian economies is improved. The demand for poultry in China is presented as an example, because it showed particularly strong increases in the past. Dieses Diskussionspapier beschreibt die Verwendung von aus der Literatur stammenden Einkommenselastizitaten fur langfristige Simulationen der Welt-Agrarmarkte. Die Problematik bei der Annahme konstanter Einkommenselastizitaten uber die Zeit wird diskutiert und fuhrt zu einer Formulierung, bei der die Einkommensabhangigkeit der Elastizitaten im Rahmen einer regionalen Querschnittsanalyse geschatzt wird. Durch dieses Vorgehen werden die Anpassungsprozesse an steigenden Wohlstand insbesondere in den sich rasch entwickelnden Landern Asiens besser abgebildet als bisher. Beispielhaft wird die Geflugelfleischnachfrage in China dargestellt, die eine besonders ausge pragte Dynamik aufweist.
Genetic variation and adaptation in the Quechua, a high altitude native population
Creators: name: Rupert, James L.
Publisher: name: University of British Columbia
Year: 2009

description: Human adaptation to high altitude involves a suite of physiological and anatomical characteristics designed to facilitate the uptake, transport and utilization of oxygen, thereby compensating for the diminished oxygen availability inherent to high altitude. While many of these characteristics may be acclimatory or developmental in nature, there is evidence that some are influenced by the genetic background of the population. The studies presented in this thesis are designed to examine the influence of genotype by comparing the frequencies of variants in a number of candidate genes between the Quechua, a high altitude population indigenous to Andean altiplano, and two low altitude populations: Na-Dene from the west coast of Canada and Caucasians of western European descent. Genes were chosen because they had previously characterized polymorphisms with phenotypes that a priori were judged to be of potential benefit at altitude and include: 1) the β2-adrenergic receptor, the principle pulmonary catecholamine receptor; 2) angiotensin converting enzyme, a regulator of systemic blood flow; 3) β-fibrinogen, a common plasma protein and primary determinant of plasma viscosity; 4) erythropoietin, a hormone involved in the synthesis of red blood cells and 5) hypoxia inducible factor 1-alpha, a major component in oxygen-dependent gene regulation. Given the theoretical requirements of high altitude populations and the phenotypes associated with these alleles of these genes, predictions were made as to which alleles should have been selected for, and therefore currently be over-represented, in the Quechua. As expected, given the diverse origins of the populations examined, there were significant differences in haplotype structure and allele frequencies. While some of these differences may have resulted from the random divergence of separated populations over time, others, such as the under-representation of alleles associated with increased fibrinogen may reflect an adaptive change in the Quechua. Successful expansion into a demanding environment will often be reflected in the genetic make-up of a population. Previous studies investigating the role of genetics in high altitude adaptation have concentrated on the heritability of complex traits. The work presented in this thesis represents an alternate approach, one in which the focus is on the frequencies of variants in individual genes in an altitude-adapted population.
Υπηρεσίες διαμεσολάβησης στο Διαδίκτυο των Πραγμάτων
Creators: name: Πολίτη, Δήμητρα
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2020
Subjects: subject: Internet of Things
subject: Διαδίκτυο των Πραγμάτων
subject: Διαμεσολάβηση
subject: Cloud computing
subject: XMPP protocol

description: Το Διαδίκτυο των πραγμάτων (IoT) θεωρείται ότι είναι ένα μαζικά κατανεμημένο σύστημα έξυπνων συσκευών, το καθένα από τα οποία είναι ενδεχομένως εξοπλισμένο με φυσικούς αισθητήρες και ενεργοποιητές. Ωστόσο, δεν είναι η πρώτη ημέρα που αναπτύσσουμε κατανεμημένα συστήματα. Δεκαετίες εμπειρίας στην αρχιτεκτονική κατανεμημένων συστημάτων έχουν εξελιχθεί στο σχεδιασμό των πλαισίων της Διασύνδεσης. Το μοτίβο σχεδιασμού εκδότη-συνδρομητή εφαρμόστηκε για να αποφευχθεί η ανάγκη για την εξέταση της κατάστασης των συνεργαζόμενων συσκευών και για την αποσύνδεση μεταξύ αποστολέων μηνυμάτων και δεκτών. Ωστόσο, η εφαρμογή συστημάτων βασισμένων σε συμβάντα στο πλαίσιο των εμπορικών πλαισίων IoT έχει μια συστροφή και αυτή είναι η συγκέντρωση του μηχανισμού ειδοποίησης σε μια πλατφόρμα cloud. Αυτό είναι κατανοητό καθώς η εφαρμογή που βασίζεται σε σύννεφο προσφέρει το πλεονέκτημα του χαμηλού κόστους διαμόρφωσης και συντήρησης.
von Hildebrand, Dietrich: Das trojanische Pferd in der Stadt Gottes
Creators: name: Frieling, Reinhard
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 18 Nr. 2 (1969): Ökumenische Rundschau, Band 18, Heft 2
Phase Diagram of Half Doped Manganites
Creators: name: Brey, Luis
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: An analysis of the properties of half-doped manganites is presented. We build up the phase diagram of the system combining a realistic calculation of the electronic properties and a mean field treatment of the temperature effects. The electronic structure of the manganites are described with a double exchange model with cooperative Jahn-Teller phonons and antiferromagnetic coupling between the $Mn$ core spins. At zero temperature a variety of electronic phases as ferromagnetic (FM) charge ordered (CO) orbital ordered (OO), CE-CO-OO and FM metallic, are obtained. By raising the temperature the CE-CO-OO phase becomes paramagnetic (PM), but depending on the electron-phonon coupling and the exchange coupling the transition can be direct or trough intermediate states: a FM disorder metallic, a PM-CO-OO or a FM-CO-OO. We also discus the nature of the high temperature PM phase in the regime of finite electron phonon coupling. In this regime half of the oxygen octahedra surrounding the $Mn$ ions are distorted. In the weak coupling regime the octahedra are slightly deformed and only trap a small amount of electronic charge, rendering the system metallic consequentially. However in the strong coupling regime the octahedra are strongly distorted, the charge is fully localized in polarons and the system is insulator.
description: 10 pagses, 9 figures included
Jet correlation measurement in heavy-ion collisions: from RHIC to LHC
Creators: name: Loizides, C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We attempt to deduce simple options of `jet quenching' phenomena in heavy-ion collisions at $\snn=5.5 \tev$ at the LHC from the present knowledge of leading-hadron suppression at RHIC energies. In light of the nuclear modification factor for leading particles we introduce the nuclear modification factor for jets, $\RAA^{jet}$, and for the longitudinal momenta of particles along the jet axis, $\RAA^{p_{\rm L}}$.
description: 9 pages, 7 figures, proceedings, MIT workshop on fluctuations and correlations in relativistic nuclear collisions
On spherically symmetric Finsler metric with scalar and constant flag curvature
Creators: name: Solorzano, Newton
name: Leandro, Benedito
Publisher: name: arXiv
Year: 2020
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: In this paper we study spherically symmetric metrics on a symmetric space in $\mathbb{R}^n$ with scalar and constant flag curvature and we also obtain families of this type of metrics. Many explicit examples are provided for Douglas metrics with scalar and constant flag curvature. Furthermore, new examples of projectively flat Finsler metrics are given. We also provide a family of spherically symmetric Finsler metrics which are not of Douglas type.
Hepato- and nephroprotective effects of bradykinin potentiating factor from scorpion (Buthus occitanus) venom on mercuric chloride-treated rats
Creators: name: Salman, Muhammad M. A.
name: Kotb, Ahmed M.
name: Haridy, Mohie A. M.
name: Hammad, Seddik
Publisher: name: Technische Universität Dortmund
Year: 2016
Subjects: subject: BPF
subject: liver
subject: kidney
subject: oxidative stress
subject: rats
subject: mercuric chloride
subject: 610

description: Bioactive peptides such as bradykinin potentiating factor (BPF), have, anti-oxidative, anti-inflammatory, immunomodulatory and ameliorative effects in chronic diseases and play a potential role in cancer prevention. It is known that the liver and kidney accumulate inorganic mercury upon exposure, which often leads to mercury intoxication in these organs. In this study, we investigated the effect of bradykinin potentiating factor (BPF), a scorpion venom peptide, on mercuric chloride-induced hepatic and renal toxicity in rats. We used 20 adult male Albino rats divided into four equal groups: the first group was injected with saline (control); the second group was administered daily with mercuric chloride (HgCl2) for 2 weeks; the third group was administered with BPF twice weekly for 2 successive weeks, while the fourth group was exposed to BPF followed by HgCl2. We observed that HgCl2 treated rats had a significant increase in serum ALT, AST, ALP, creatinine and urea levels compared to control. Furthermore, HgCl2 treated rats showed a marked decrease in total proteins, albumin and uric acids compared to control. The previously studied parameters were not significantly changed in BPF pretreated rats compared to control. Moreover, a significant decrease in the activities of glutathione perioxidase (GSH), superoxide dismutase (SOD), and catalase (CAT), in addition to a significant increase in the level of malondialdehyde (MDA) were observed in hepatic and renal tissues of rats after HgCl2 treatment. In contrast, the HgCl2/BPF treated rats showed a significant elevation in the activity of GSH, SOD, and CAT accompanied with a significant regression in the level of MDA compared to the HgCl2 exposed rats. We conclude that treatment with BPF is a promising prophylactic approach for the management of mercuric chloride-induced hepato- and nephro-toxicities.
description: EXCLI Journal;Vol. 15, 2016
The effect of hydroalcoholic extract of Achillea eriophora DC. on blood pressure of anaesthetized male rat
Creators: name: Anvari, Sohrab
name: Bahaoddini, Aminollah
name: Moein, Mahmoodreza
name: Khosravi, Ahmad Reza
Publisher: name: Technische Universität Dortmund
Year: 2016
Subjects: subject: Achillea eriophora
subject: hypotension
subject: cholinergic system
subject: nitrergic system
subject: 610

description: Achillea eriophora (Asteraceae) is a medicinal plant commonly used in Iran. This study was performed to determine the cardiovascular effects of hydroethanolic extract of A. eriophora (HEAE) and the underlying mechanisms in anaesthetized rats. The acute effects of intravenous (i.v.) administration of different doses of HEAE (40, 50, 60, 80 mg/kg), and its probable interaction with cholinergic and nitrergic systems were investigated in the presence of ACh and NOS blocker (L-NAME) as well as ethanol (HEAE solvent in sham group). Intravenous administration of different doses of HEAE induced hypotension. HEAE (60 mg/kg) significantly reduced mean arterial blood pressure (MAP), systolic arterial blood pressure (SBP) and diastolic arterial blood pressure (DBP)compared to control rats that treated with ethanol only, but no change in heart rate (HR) was seen in both groups. The results showed significant decrease in MAP, SBP, DBP and increase of HR in the presence of HEAE plus ACh (10 μg/kg) compared to when ACh was injected alone. Finally i.v. administration of HEAE, significantly reduced MAP and DBP in L-NAME (5 mg/kg) treated animals, while bradycardic responses to L-NAME were not significantly changed by HEAE. It can be concluded that Achillea eriophora induced hypotensive effect via lowering total peripheral resistance and cardiac output that may be synergist with cholinergic and independent of nitrergic system.
description: EXCLI Journal;Vol. 15, 2016
Bayesian Analysis of a Japanese Meat Demand System: A Robust Likelihood Approach
Creators: name: Heckelei, Thomas
name: Mittelhammer, Ronald C.
name: Wahl, Thomas I.
name: Heckelei, Thomas
name: Mittelhammer, Ronald C.
name: Wahl, Thomas I.
Publisher: name: Unknown
Year: 1997
Subjects: Demand and Price Analysis

description: This paper presents an application of Bayesian analysis to an AIDS model of Japanese meat demand extending previous approaches in three ways: (1) The methodology employed is robust with respect to the likelihood function but retains the generic, easily programmable character of algorithms offered by Monte Carlo Integration approaches based on the normal likelihood function. (2) In addition to inequality constraints, linear exact restrictions and stochastic prior information are subjected to a Bayesian posterior analysis of validity and incorporated into Bayesian point estimates of model parameters and elasticities. (3) In order to assess the influence of the prior density on posterior distributions of model parameters relative to the likelihood, a measure quantifying the "degree of prior influence" on the posterior is defined. Das Diskussionspapier stellt eine Bayes'sche Analyse eines AIDS Modells Japanischer Fleischnachfrage vor, die eine Erweiterung fruherer Ansatze in den folgenden drei Punkten darstellt:(1) Die verwendete Methode ist robust bezuglich der Likelihood Funktion, erhalt dabei aber die Flexibilitat und einfache Umsetzung von Algorithmen basierend auf Monte Carlo Integration und der Annahme der Normalverteilung. (2) Zusatzlich zu Ungleichheitsbedingungen werden exakte Restriktionen und stochastische a-priori Information einer Bayes'schen a-posteriori Analyse unterzogen und in die Bayes'sche Punktschatzung von Parametern und Elastizitaten einbezogen. (3) Ein Index zur Messung des Einflusses der a-priori Information auf die a-posteriori Verteilung der Modellparameter wird vorgestellt.
Global exploration of phase behavior in frustrated Ising models using unsupervised learning techniques
Creators: name: Elias, Danilo Rodrigues de Assis
name: Granato, Enzo
name: de Koning, Maurice
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We apply a set of machine-learning (ML) techniques for the global exploration of the phase diagrams of two frustrated 2D Ising models with competing interactions. Based on raw Monte Carlo spin configurations generated for random system parameters, we apply principal-component analysis (PCA) and auto-encoders to achieve dimensionality reduction, followed by clustering using the DBSCAN method and a support-vector machine classifier to construct the transition lines between the distinct phases in both models. The results are in very good agreement with available exact solutions, with the auto-encoders leading to quantitatively superior estimates, even for a data set containing only 1400 spin configurations. In addition, the results suggest the existence of a relationship between the structure of the optimized auto-encoder latent space and physical characteristics of both systems. This indicates that the employed approach can be useful in perceiving fundamental properties of physical systems in situations where \emph{a priori} theoretical insight is unavailable.
High accuracy simulations of d=4 SU(3) qcd-string
Creators: name: Dass, N. D. Hari
name: Majumdar, Pushan
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present here the results of our high accuracy simulations of $q\bar q$ potential in $d=4$ SU(3) Yang-Mills theory. We measure this quantity by measuring the {\it Polyakov Loop Correlators} using the {\it exponential variance reduction technique(multilevel)} of Luscher and Weisz. We further use numerical integration of the one-link integrals of SU(3) theory by adopting techniques proposed by de Forcrand and Roiesnell achieving significant speed-up in the process. Measurements were done at $β= 5.7$ on $24^3x32$ as well as $32^4$ lattices for separations between the Polyakov loops in the range $r = 2-9$ in lattice units. We analyse the results in terms of the force between $q\bar q$ pair as well as in terms of a {\em scaled second derivative} of the potential. We show that the data is accurate enough to distinguish between different string models and that it seems to favour the expression for ground state energy of a Nambu-Goto string. We conclude by discussing future plans.
description: Published in the proceedings of XXIII International Symposium on Lattice Field Field Theory, July 2005, Dublin (PoS(LAT2005)312)
title: Discovery of novel phthalimide analogs
title: synthesis, antimicrobial and antitubercular screening with molecular docking studies
titleType: AlternativeTitle
Creators: name: Rateb, Heba S.
name: Ahmed, Hany E. A.
name: Ahmed, Sahar
name: Ihmaid, Saleh
name: Afifi, Tarek H.
Publisher: name: Technische Universität Dortmund
Year: 2016
Subjects: subject: phthalimide
subject: antitubercular agents
subject: structure-activity relationships
subject: docking
subject: 610

description: In continuation of our endeavor towards the design and development of potent and effective antimicrobial agents, three series of phthalimide derivatives (4a–i, 5a–f, and 6a-c) were synthesized, fully characterized and evaluated for their potential antibacterial, antifungal and antimycobacterial activities. These efforts led to the discovery of nine compounds 4c, 4f, 4g, 4h, 4i, 5c, 5d, 5e, and 6c (MIC range from 0.49 to 31.5 μg/mL) with potent antibacterial, antifungal, and antimycobacterial activities. Ampicillin, ciprofloxacin, amphotericin B were used as references for antibacterial and antifungal screening respectively, while isoniazid was used as a reference for antimycobacterial testing. Furthermore, molecular modeling studies were done to explore the binding mode of the most active derivatives to M. tuberculosis enoyl reductase (InhA) and DNA gyrase B. Our study showed the importance of both hydrogen bonding and hydrophobic interactions as a key interaction with the target enzymes.
description: EXCLI Journal;Vol. 15, 2016
Uncertainty relation and quantitative condition of inversion symmetry of time in many-particle system
Creators: name: Feng, You-gang
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We proved that the uncertainty relation fits in with many-particle system and the equality of the relation corresponds to the thermodynamic equilibrium state, the inequality of the relation corresponds to the thermodynamic non-equilibrium state for any quantum system. The microscopic origin of the second law of thermodynamics is certainly resulted in the wave-particle duality of matter. A quantitative condition of inversion symmetry of time is obtained.
description: 5 pages
Advanced Dropout: A Model-free Methodology for Bayesian Dropout Optimization
Creators: name: Xie, Jiyang
name: Ma, Zhanyu
name: Lei, and Jianjun
name: Zhang, Guoqiang
name: Xue, Jing-Hao
name: Tan, Zheng-Hua
name: Guo, Jun
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Due to lack of data, overfitting ubiquitously exists in real-world applications of deep neural networks (DNNs). We propose advanced dropout, a model-free methodology, to mitigate overfitting and improve the performance of DNNs. The advanced dropout technique applies a model-free and easily implemented distribution with parametric prior, and adaptively adjusts dropout rate. Specifically, the distribution parameters are optimized by stochastic gradient variational Bayes in order to carry out an end-to-end training. We evaluate the effectiveness of the advanced dropout against nine dropout techniques on seven computer vision datasets (five small-scale datasets and two large-scale datasets) with various base models. The advanced dropout outperforms all the referred techniques on all the datasets.We further compare the effectiveness ratios and find that advanced dropout achieves the highest one on most cases. Next, we conduct a set of analysis of dropout rate characteristics, including convergence of the adaptive dropout rate, the learned distributions of dropout masks, and a comparison with dropout rate generation without an explicit distribution. In addition, the ability of overfitting prevention is evaluated and confirmed. Finally, we extend the application of the advanced dropout to uncertainty inference, network pruning, text classification, and regression. The proposed advanced dropout is also superior to the corresponding referred methods. Codes are available at https://github.com/PRIS-CV/AdvancedDropout.
description: Accepted by IEEE TPAMI, 2021
EXTENDING ALONE
Creators: name: Parcell, Joseph L.
name: Parcell, Joseph L.
Publisher: name: Unknown
Year: 2002
Subjects: Teaching/Communication/Extension/Profession

description: The discussion in this paper is focused on assessing the future of Extension, and in particular the tenure-track agricultural extension economist. Presented here is a case-study of trends within the University of Missouri Outreach and Extension system, relationship of Extension to the business cycle, and quantitative analysis of factors contributing to per capita state-level Extension funding. The suggestions from this research are obvious. In order to succeed in Extension one will have to become innovative and focus on enhancing social capital as opposed to building a well defined professional-focused research program, if only planning to rely on internal funding.
DYNAMIC PRICING OF GENETICALLY MODIFIED CROP TRAITS
Creators: name: Perrin, Richard K.
name: Fulginiti, Lilyan E.
name: Perrin, Richard K.
name: Fulginiti, Lilyan E.
Publisher: name: Unknown
Year: 2002
Subjects: Crop Production/Industries

description: This paper considers the time path of prices for crop traits such as herbicide resistance, specifically whether they conform to Coase's conjecture that monopoly prices can't be sustained on durables. While property rights determine whether such traits are durables, prices for RR soybeans and Bt corn are consistent with Coase.
A Survey on Instance Segmentation: State of the art
Creators: name: Hafiz, Abdul Mueed
name: Bhat, Ghulam Mohiuddin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Object detection or localization is an incremental step in progression from coarse to fine digital image inference. It not only provides the classes of the image objects, but also provides the location of the image objects which have been classified. The location is given in the form of bounding boxes or centroids. Semantic segmentation gives fine inference by predicting labels for every pixel in the input image. Each pixel is labelled according to the object class within which it is enclosed. Furthering this evolution, instance segmentation gives different labels for separate instances of objects belonging to the same class. Hence, instance segmentation may be defined as the technique of simultaneously solving the problem of object detection as well as that of semantic segmentation. In this survey paper on instance segmentation -- its background, issues, techniques, evolution, popular datasets, related work up to the state of the art and future scope have been discussed. The paper provides valuable information for those who want to do research in the field of instance segmentation.
description: Int J Multimed Info Retr (2020)
THE IMPACT OF THE 1990S ECONOMIC BOOM ON LESS-EDUCATED WORKERS IN RURAL AMERICA: DID THE RISING TIDE LIFT ALL BOATS?
Creators: name: Davis, Elizabeth E.
name: Bosley, Stacie A.
name: Davis, Elizabeth E.
name: Bosley, Stacie A.
Publisher: name: Unknown
Year: 2002
Subjects: Labor and Human Capital

description: We use national longitudinal survey data (NLSY79) to investigate the impact of local labor market conditions on the employment and earnings of rural non-college-educated workers. Results suggest that local economic conditions in the late 1990s did have a positive impact on wages, and the effect is larger for workers with no more than a high school degree compared to their college-educated counterparts. We find little evidence of a difference between rural and urban impacts, suggesting that the 1990s boom helped both rural and urban less-educated workers. These results suggest that an expanding economy continues to be a powerful anti-poverty force.
Distinguishing Off-Shell Supergravities With On-Shell Physics
Creators: name: Lambert, Neil D.
name: Moore, Gregory W.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that it is possible to distinguish between different off-shell completions of supergravity at the on-shell level. We focus on the comparison of the ``new minimal'' formulation of off-shell four-dimensional N=1 supergravity with the ``old minimal'' formulation. We show that there are 3-manifolds which admit supersymmetric compactifications in the new-minimal formulation but which do not admit supersymmetric compactifications in other formulations. Moreover, on manifolds with boundary the new-minimal formulation admits ``singleton modes'' which are absent in other formulations.
description: References added
Πολιτικές ένταξης: εκπαιδευτικές δραστηριότητες στα Κέντρα Προσωρινής Φιλοξενίας Προσφύγων
Creators: name: Δημάκη, Δήμητρα
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2020
Subjects: subject: Μετανάστευση
subject: Μετανάστες
subject: Πρόσφυγες
subject: Προσφυγικό ζήτημα
subject: Προσφυγική κρίση
subject: Διαπολιτισμική εκπαίδευση
subject: Πολιτικές ένταξης

description: Η μετανάστευση είναι ένα φαινόμενο πολυσύνθετο που επιδρά όχι στα άτομα που μετακινούνται αλλά και στις κοινωνίες αναχώρησης και προορισμού. Ο μετανάστης και ο πρόσφυγας, δύο έννοιες διακριτές στη διεθνή βιβλιογραφία και πρακτική, αποτελούν κομβικό σημείο των πολιτικών ένταξης. Με έμμεσο, τουλάχιστον, τρόπο, απασχολούν την ΕΚ/ΕΕ από τις αρχές της, κυρίως μέσω των πολιτικών που αφορούν την κινητικότητα των ατόμων εντός της ΕΕ. Με την πρόσφατη προσφυγική κρίση πολλές ευρωπαϊκές χώρες χαρακτήρισαν την ένταξη των προσφύγων, μέσω των κοινωνικών τους μηχανισμών, τεράστια πρόκληση. Η κοινωνιολογία της εκπαίδευσης μας βοηθά να διερευνήσουμε τους τρόπους με τους οποίους η εκπαίδευση και οι κοινωνικοί μηχανισμοί αλληλεπιδρούν και επηρεάζουν τη θέση των ατόμων μέσα στις ομάδες. Δεδομένης της διάστασης της πολυπολιτισμικότητας που χαρακτηρίζει τη σημερινή ΕΕ, η έννοια της διαπολιτισμικότητας, δηλαδή μιας δυναμικής σχέσης των πολιτισμών είναι κομβικό σημείο για την εκπαίδευση και τον σχεδιασμό εκπαιδευτικών προγραμμάτων, τα οποία εντάσσονται στις πολιτικές ένταξης και στοχεύουν στην ένταξη των παιδιών προσφύγων. Η παρούσα μεταπτυχιακή διατριβή επικεντρώνεται στα εκπαιδευτικά προγράμματα που αναπτύχθηκαν στην ΕΕ και στην Ελλάδα, λειτούργησαν υπό το πλαίσιο των προσφυγικών δομών και συντέλεσαν στην εκπαιδευτική ένταξη των μαθητών προσφύγων.
EFFECTS OF TARIFFS AND TECHNICAL BARRIERS ON HIGH- AND LOW-VALUE POULTRY TRADE
Creators: name: Peterson, Everett B.
name: Orden, David
name: Peterson, Everett B.
name: Orden, David
Publisher: name: Unknown
Year: 2002
Subjects: International Relations/Trade

description: A perfectly competitive spatial partial equilibrium model is constructed to evaluate some of the policy effects on world poultry trade. The model simulates the trade flows among six key exporting and importing countries and two aggregate rest-of-world regions. Effects of removal of restrictions based on tariffs, tariff-rate quotas (TRQs) and sanitary regulations are evaluated maintaining a distinction between "high-value" (mostly white meat) and "low-value" (mostly dark meat) poultry products. Results suggest that removal of sanitary barriers alone has relatively little effect compared to removal of tariffs and TRQs, but has more effect if sanitary and other barriers are removed simultaneously. Imposition of new sanitary barriers against US products by Russia would also shift trade flows, with production rising in Brazil.
Comment on "Optical Response of Strongly Coupled Nanopraticles in Dimer Arrays" (Phys. Rev. B 71(4), 045404, 2005)
Creators: name: Markel, Vadim A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Optics (physics.optics)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: I have re-calculated the extinction spectra of aggregates of two silver nanospheres shown in Figs.~2 and 3 of Ref.~8. I have used the approximate method of images according to Ref.~8 and an exact numerical technique. I have found that the three sets of data (those I have obtained by the method of images, the numerical results, and the results published in Ref.~8) do not coincide. In this Comment, I discuss the reasons for these discrepancies and the general applicability of the method of images to the quasi-static electromagnetic problem of two interacting nanospheres.
description: 4 pages, 4 figures, submitted to Phys. Rev. B
AEG-1 is associated with hypoxia-induced hepatocellular carcinoma chemoresistance via regulating PI3K/AKT/HIF-1alpha/MDR-1 pathway
Creators: name: Xie, Yong
name: Zhong, De-Wu
Publisher: name: Technische Universität Dortmund
Year: 2016
Subjects: subject: AEG-1
subject: hypoxia
subject: hepatocellular carcinoma
subject: chemoresistance
subject: PI3K/AKT/HIF-1-1α/MDR-1 pathway
subject: 610

description: Hypoxia is a common characteristic of hepatocellular carcinoma (HCC) associated with reduced response to chemotherapy, thus increasing the probability of tumor recurrence. Astrocyte elevated gene-1 (AEG-1) has been involved in a wide array of cancer progression including proliferation, chemoresistance, angiogenesis and metas- tasis, but its effect on HCC chemoresistance induced by hypoxia is unclear. In this study, expression of AEG-1 and multiple drug resistance (MDR-1) were examined in HCC using immunohistochemical staining and RT- PCR. Furthermore, their expression levels were detected in HCC HepG2 cells in normoxia or hypoxia via RT- PCR and Western blot assays. Specific shRNAs were used to silence AEG-1 expression in HepG2 cells. Results showed AEG-1 and MDR-1 expression were higher in HCC tissues than in adjacent normal tissues. Incubation of HepG2 cells in hypoxia increased expression of AEG-1 and MDR-1, compared to incubation in normoxia. Exposure to hypoxia blunted sensitivity of HepG2 cells to Adriamycin, 5-fluorouracil and cis-platinum, as evi- denced by modest alterations in cell viability and apoptosis rate, however the sensitivity was elevated with AEG- 1 knockdown. PI3K/AKT/HIF-1/MDR-1 pathway was attenuated following AEG-1 knockdown in hypoxia. Based on these data, it was suggested that AEG-1 is associated with hypoxia-induced hepatocellular carcinoma chemoresistance via regulating PI3K/AKT/HIF-1/MDR-1 pathway. This study uncovered a novel potential tar- get for development of an effective therapy against hypoxia-induced HCC chemoresistance.
description: EXCLI Journal;Vol. 15, 2016
Failure of the Wiedemann-Franz Law in Mesoscopic Conductors
Creators: name: Vavilov, Maxim G.
name: Stone, A. Douglas
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the effect of mesoscopic fluctuations on the validity of the Wiedemann--Franz (WF) law for quasi-one-dimensional metal wires and open quantum dots. At temperatures much less than the generalized Thouless energy, E_c, the WF law is satisfied for each specific sample but as the temperature is raised through E_c a sample-specific correction to the WF law of order 1/g appears (g is the dimensionless conductance) and then tends to zero again at high temperatures. The mesoscopic violation of the Weidemann-Franz law is even more pronounced in a ring geometry, for which Lorenz number exhibits h/e flux-periodic Aharonov-Bohm oscillations.
description: published version, 6 pages, 4 figures
RESPONSIVENESS OF SWINE WASTE MANAGEMENT COSTS TO FEEDING LOW CRUDE PROTEIN DIETS
Creators: name: Ancev, Tihomir
name: Carter, Scott D.
name: Stoecker, Arthur L.
name: Ancev, Tihomir
name: Carter, Scott D.
name: Stoecker, Arthur L.
Publisher: name: Unknown
Year: 2002
Subjects: Livestock Production/Industries

description: Livestock waste management issues are of growing environmental concern in the United States and elsewhere. Lowering the quantity of nutrients excreted by pigs can ease associated environmental problems and at the same time can reduce waste management costs. Reduction in nutrient excretion can be achieved by feeding pigs with low crude protein diets. The paper develops a procedure for calculation of swine waste management costs as function of four dietary regimes. Feeding low crude protein diets significantly reduced amount of nitrogen excreted by pigs. As a result, reduction in waste management costs may be achieved, especially when the pig farm does not have enough land to apply all the manure it generates.
GDPR και χρήστες: κατανόηση των δικαιωμάτων, ευκολία εξάσκησης και διαπίστωση των privacy by design λειτουργιών
Creators: name: Γούναρη, Αικατερίνη
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2020
Subjects: subject: Επεξεργασία δεδομένων
subject: Υπεύθυνος επεξεργασίας
subject: Υποκείμενα δεδομένων
subject: Δικαιώματα
subject: Προστασία από το σχεδιασμό
subject: GDPR
subject: ΓΚΠΔ
subject: Ιδιωτικότητα
subject: Γενικός Κανονισμός Προστασίας Δεδομένων (ΓΚΠΔ)
subject: Data subjects
subject: Data rights
subject: Privacy by design
subject: Privacy by default
subject: Προσωπικά δεδομένα

description: Η παρούσα διπλωματική εργασία έχει ως αντικειμενικό σκοπό τη μελέτη του Ευρωπαϊκού Γενικού Κανονισμού Προστασίας Δεδομένων (ΕΕ) 2016/679 σχετικά με τα δικαιώματα των υποκειμένων που ενισχύθηκαν από τις 25 Μαΐου 2018 που τέθηκε σε εφαρμογή ο Κανονισμός και καθιέρωσε ενιαίο νομικό πλαίσιο για την προστασία των προσωπικών δεδομένων σε όλα τα κράτη μέλη της ΕΕ. Η ραγδαία εξέλιξη της τεχνολογίας σε όλους τους τομείς έχει ως αποτέλεσμα ολοένα και αυξανόμενο πλήθος προσωπικών δεδομένων να υφίστανται και ηλεκτρονική επεξεργασία, με κίνδυνο την παραβίαση της ιδιωτικότητας και της ασφάλειας των προσωπικών δεδομένων.Η εργασία αυτή διερευνά το επίπεδο ευαισθητοποίησης των ατόμων που μεταβιβάζουν τα δεδομένα τους ως υποκείμενα των δεδομένων τους σχετικά με την επεξεργασία και τη διαχείριση των προσωπικών τους πληροφοριών, Επιπλέον μέσα από αυτήν τη μελέτη εξετάζεται τόσο το επίπεδο γνώσης και κατανόησης των δικαιωμάτων από τα ίδια τα άτομα (υποκείμενα), όσο και ο τρόπος υλοποιήσεως των δικαιωμάτων αυτών από τους φορείς που συλλέγουν στην κατοχή τους προσωπικά δεδομένα με σκοπό τη διασφάλιση της ακεραιότητας, διαθεσιμότητας και αυθεντικότητας αυτών.
THE EFFECTS OF RISK ON FARMLAND VALUES AND RETURNS
Creators: name: Katchova, Ani L.
name: Sherrick, Bruce J.
name: Barry, Peter J.
name: Katchova, Ani L.
name: Sherrick, Bruce J.
name: Barry, Peter J.
Publisher: name: Unknown
Year: 2002
Subjects: Land Economics/Use
Risk and Uncertainty

description: The effect of risk on farmland values and returns is analyzed using a capitalization model. County-level models are estimated using spatial econometric techniques. Our results show that riskier regions and growing conditions have both lower land values and higher risk-adjusted rates of return to farmland.
Global connections, local transformations : women, agriculture and activism in Ladakh, India
Creators: name: Tarbotton, Rebecca
Publisher: name: University of British Columbia
Year: 2009

description: This study looks at the connections between the impacts of the globalization of food and farming on women, nature and farming communities and cultures in North and South and the growing movement of resistance and renewal, in the case of the Ladakh Farm Project (LFP). In Ladakh, the development of agriculture is having detrimental effects upon community, ecology and women farmers, and women are taking an active role in revitalising and protecting their local agriculture. The LFP is a project that is jointly run by the Women's Alliance of Ladakh (WAL), and organisation that was created specifically to give voice to Ladakhi women's perspectives, and the International Society for Ecology and Culture, a U.K.-based Non-governmental Organisation (NGO). The LFP aims to support Ladakhi agriculture and cultivate greater understanding about how conventional growth-oriented development has affected cultures and communities all over the world and about possible solutions, by fostering deeper connections and dialogue between Westerners and Ladakhis. A SWOT analysis of the LFP was conducted based upon data gathered from indepth interviews with Ladakhi hosts and reports written by participants as well as group meetings and discussions with organisers. Each phase of the project cycle was then analysed in terms of potential solutions to the challenges. The analysis reveals that communication barriers and differing expectations about the project create challenges for participants, host families and organisers. Despite these obstacles, the LFP is found to have a profound impact on participants and is considered by their Ladakhi hosts to be beneficial, both practically and in terms of cultural exchange and dialogue. The strength of the WAL as a decentralised women's organisation still firmly rooted in local cultural and ecological values combined with the ISEC's long history in Ladakh provides strong foundations for the LFP and for the potential to scale-up the project. A similar project could be replicated in a different context but its efficacy would depend largely upon strong partnership between a local and international organisation. There is however potential for the model to be adapted and used in different contexts such as urban centres.