Miracle-dz/UniFAR-FTUs huggingface dataset:
Akdeniz iklim kuşağının yaygın çalılarında mineral element içeriklerinin değişimi: Diğer elementler

Akdeniz kusagi calilari derin kokleri ve genelde herdem yesil yapilari ile yem degerlerini yil boyu korumaya calisirlar. Bu durum kecilerin besin elementi ihtiyaclarinin buyuk bir bolumunu buralardan karsilamalarina yardimci olur. Ancak bitkilerde besin elementleri disinda yararli ya da zararli olabilen bircok mineral de bulunmaktadir. Bu tur elementlerin calilardaki miktarlari veya degisimleri konusunda Turkiye’nin Marmara ve Ege bolgelerinde arastirma yapilmamistir. Bu nedenle bu arastirmada besin elementi olmayan minerallerin calilardaki degisimi incelenmis ve bunlarin kecilerle iliskileri ortaya konmustur. Deneme Ekim 2006 - Kasim 2007 tarihleri arasinda Canakkale’nin iki ayri calili alaninda yurutulmustur. Arastirmada kermes mesesi, akcakesme, katran ardici, mazi mesesi, karacali, yaprakli laden, kekik ve abdestbozan calilarinin Se, Co, Ni, Cr, Cd ve Pb miktarlari belirlenmistir. Incelenen calilardaki cogu mineralin yil boyu degisimi onemli, ancak duzensiz olmustur. Bu duzensizlik genelde bu elementlerin bitkiler icin mutlak gerekli olmadiklarindan ve eser miktarlarda bulunmalarindan ileri gelmistir. Calilarin ortalama Se miktarlari 0.02-0.45, Co 0.01-46, Ni 1.70-5.54, Cr 1.35- 2.29, Cd 0.01-0.15 ve Pb 0.72-1.93 mg kg-1 arasinda degismistir. Bu elementlerin hicbiri gerek bitkiler gerekse hayvanlar icin eksiklik veya fazlalik olarak herhangi bir sorun yaratacak duzeyde olmamistir
THE MULTICONFIGURATION TIME DEPENDENT HARTREE-FOCK METHOD

Many-body quantum dynamics is a challenging problem that has induced the development of many different computational techniques. One powerful technique is the multiconfiguration timedependent Hartree-Fock (MCTDHF) method. This method allows proper consideration of electronic correlation with much less computational overhead compared to other similar methods. In this work, we present our implementation of the MCTDHF method on a non-uniform cylindrical grid. With the one-body limit of our code, we studied the controversial topic of tunneling delay, and showed that our results agree with one recent experiment while disagreeing with another. Using the fully correlated version of the code, we demonstrated the ability of MCTDHF to address correlation by calculating the ground state ionization energies of a few strongly correlated systems.
Outsourcing as management strategy in local public services

As a contribution to the academic debate on the use of outsourcing as a formula for the provision of local public services, the article proposes to focus attention on political-institutional factors. The paper departs from the review of the main arguments highlighted by the literature and it contrasts their expected results in cross-sectional study based on data from all the municipalities with over 5,000 inhabitants in Catalonia, a Spanish Autonomous Community. A typology of municipalities is constructed through principal component analysis and a cluster analysis and the existence of differences in the percentage of outsourcing among types of municipalities is tested. The results show the relevance of political-institutional factors in the selection of the service provision formula and allow us to identify three strategies that propose outsourcing as a mechanism of flexibility of public management.
Antibiotic Resistance of Bacterial Isolates from HIV Positive Patients withUrinary Tract Infection (UTI) in Portharcourt, Nigeria

This study was carried out to evaluate the prevalence of HIV associated Urinary tract infections (UTI) in Portharcourt Metropolis. 286 urine samples were collected from 246 HIV seropositive and 40 HIV seronegative individuals. Mid stream urine samples collected from these individuals were processed by standard protocols to examine for bacterial opportunistic pathogens. Antibiotic susceptibility testing was performed using Kirby-Bauer’s disc diffusion method. Out of 246 HIV individuals examined, 141 (57.3%) urine samples yielded growth of bacterial isolates, with age group 24-30 years recording the highest number of isolates 45 (32.9%), while those above 44 years old had the least with 11 (7.8%). About 24 (60%) samples out of 40 seronegative individuals yielded growth of bacteria and age group 17-23 years recorded the highest number of isolates 7 (29.1%), while those above 44 years had the least 1 (4.1%). Female individuals recorded the highest number of bacterial isolates than males. A total of 165 bacteria were identified and grouped into four genera out of which Staphylococcus aureus had the highest percentage of occurrence 49 (29.7%), followed by Escherichia coli 47 (28.5%), Pseudomonas aeruginosa 46 (27.9%) and Klebsiella pneumoniae 23 (13.9%). Out of 111 bacterial isolates that exhibited multidrug resistance, HIV Seropositive individuals had 103 (92.8%) and HIV seronegative individuals 8 (7.2%). Over all, Staphylococcus aureus recorded the highest number of multidrug resistant bacteria 36 (32.4%), followed by Pseudomonas aeruginosa 34 (30.6%). The high levels of multidrug resistance in HIV seropositive individuals are a serious public Health concern. Therefore appropriate health education to reduce selfmedication and drug abuse is very imperative and desirous.
Biogeosciences Discussions is the access reviewed discussion forum of Biogeosciences Drought reduced monoterpene emissions from Quercus ilex trees : results from a throughfall displacement experiment within a forest ecosystem

Drought reduced monoterpene emissions from Quercus ilex trees: results from a throughfall displacement experiment within a forest ecosystem A. V. Lavoir, M. Staudt, J. P. Schnitzler, D. Landais, F. Massol, A. Rocheteau, R. Rodriguez, I. Zimmer, and S. Rambal DREAM team, Centre d’Ecologie Fonctionnelle et Evolutive – Centre National pour la Recherche Scientifique UMR 5175 (CEFE-CNRS), 1919 Route de Mende, 34293 Montpellier Cedex 5, France Research Centre Karlsruhe; Institute for Meteorology and Climate Research (IMK-IFU); Kreuzeckbahnstrasse 19, 82467 Garmisch-Partenkirchen, Germany UR HYAX, CEMAGREF, 3275 Route de Cézanne – Le Tholonet, CS 40061, 13182 Aix-en-Provence Cedex 5, France
Designing a Comprehensive Security Framework for Smartphones and Mobile Devices

This work investigates issues and challenges of cyber security, specifically malware targeting mobile devices. Recent advances in technology have provided high CPU power, large storage, broad bandwidth and integrated peripheral devices such as Bluetooth, Wi-Fi, 3G/4G to mobile devices, making them popular computing and communication devices. Mobile malware has been targeting mobile devices more than ever and seems to be shifted from their traditional host, the personal computers, to more vulnerable victims. In this study, we mainly focus on malware for Android-based mobile devices. We analyze and discuss related malware and recognize its trends and challenges. We also present a comprehensive security solution that addresses the security from malware threats.
A practical investigation into how education providers can effectively exploit web services

4 Abstract This research is a practical investigation into how education providers can effectively exploit Web Services. The aim is to help IT managers, administrators and developers who are involved in the provision of education to understand the requirements of web services, and to tap their full potential. Such a goal was achieved by analysing answers to the following questions: 1. Are Web Services expected to become a crucial part of the IT infrastructure for education providers? 2. How can education providers effectively exploit Web Services in practice? Like it or not, it is an indisputable fact that today’s education is becoming a profitable industry. Like an enterprise in any other industry, an education provider also faces many challenges. These challenges derive from keeping competitive advantage and satisfying rapidly growing customer demands within a limited budget. Those challenges are typically reflected in the IT (information technology) expenditure of education providers. Advanced e-business strategies require education providers to build an integrated and flexible IT infrastructure. However, education providers often face a heterogeneous computing environment that significantly lacks both interoperability and flexibility. The traditional method of integrating such a heterogeneous computing environment is very expensive, and often, prior investment is lost. Web Services can provide a cost-effective approach to solve many problems of interoperability, as well as providing flexibility for IT infrastructure. Though
Role of Nonmonotonic Constitutive Curves in Extrusion Instabilities

Flow instabilities of non-Newtonian fluids severely hamper the quality of products during various chemical processes, such as fibre spinning, extrusion, and film blowing. The origin of extrusion instability has been studied over many decades. However, no consensus has been reached among the research community so far. In this paper, the possible cause of extrusion instabilities is explored using the finitely extensible nonlinear elastic conformation-dependent (FENE-CD) model with a nonmonotonic constitutive curve. Many well-documented experimental phenomena are reproduced in our simulations, and it could be concluded that the nonmonotonic constitutive curve plays an essential role in extrusion instabilities. In addition, the results imply that the die exit singularity may generate or magnify oscillations.
Flow frequency responses to hardwood-to-grass conversion and subsequent succession

A 8-9 ha (22 acre) catchment at the Coweeta Hydrologic Laboratory in western North Carolina was cleared of hardwood forest in 1958 and 1959 and seeded to Kentucky 31 fescue grass in 1959 and 1960. Grass production was high in years when fertilizer was applied and water yield was very similar to that expected from the original forest cover. As grass production declined, so water yields rose, with important increases in the magnitude of both low frequency flows and, particularly, in baseflow. In 1967 and 1968, when all vegetation was deadened in the catchment, the discharge levels in all flow frequency classes were higher. Natural revegetation was then allowed and water yields gradually declined towards the expected level, although there remained a tendency for winter flows to remain higher, and for summer flows to be lower than expected. This paper updates the earlier work of Hibbert (1969) and uses flow duration curves to extend his results.
Do Networks Do the Works? Towards Recognising (and Solving) a Migration-Entrepreneurship Conundrum

On the one hand, research shows that immigrant entrepreneurs find support for their business among other immigrants, within immigrant enclaves. On the other hand, the economic theory of industrial organisation clearly suggests that business concentration is detrimental to profits, which in turn creates disincentives for potential newcomers. This article aims to find an answer to this conundrum. It asks three questions: is business competition present at all among immigrants? If yes, then is it the market mechanism that reconciles the existence of immigrant business solidarity with immigrant business competition? And what determines the fine line between generating positive and negative externalities for other immigrant businesses? Through an analysis of migration networks among immigrant businessmen, this research concludes that both processes might in fact occur. The factor that determines whether it is one or the other is the specificity of the industry in which a given business operates.
Estimation of materials characteristics from power measurements at 60 GHz

The RACE-MBS (Mobile Broadband System) project deals with the development of a mobile communications system at the 60 GHz band, which means that its propagation models, both for indoor and outdoor environments, have to be developed for that specific frequency band. The article presents estimated values, at 60 GHz, for the electrical characteristics of several building materials (only for flat surfaces), namely the relative dielectric constant, the loss tangent, and the attenuation coefficient. The estimations are based on power reflection and transmission measurements of the material samples, and the multiple internal reflections in a dielectric slab are used as a model. A least-square approach is used to obtain the numerical values of the parameters from the measurements. The attenuation coefficient ranges from 1 dB/cm to 8 dB/cm.
Rooting behaviour, polyphenol oxidase activity, and biochemical changes in grape rootstocks at different growth stages

Four grape rootstocks belonging to diff erent Vitis species were planted in September. Rooting behaviour, polyphenol oxidase (PPO; EC 1.14.18.1) activity and biochemical parameters were studied at diff erent growth stages aft er planting the cuttings in polythene bags. Signifi cant diff erences were recorded for rooting success among the diff erent rootstocks, with the maximum sprouting percentage determined in the Freedom rootstock. Th e highest variation in PPO activity was also recorded in Freedom. High PPO activity was recorded in rootstock 140 Ru, while the highest root length was recorded in Dog Ridge. In the rootstock 110 R, the PPO activity was the lowest during the initial stage, though it increased up to 60 days aft er planting (DAP) and was then reduced up to 90 DAP. Increases in the number of rooting primordials were recorded in all the diff erent rootstocks at diff erent stages of growth. A higher number of rooting primordials was recorded in Freedom, and it was followed by 110 R. Th e present study suggests the diff erences in the rooting behaviour of the diff erent rootstocks are based on PPO activity at regular time intervals up to 90 DAP.
TanDEM-X Performance Optimization

Abstract TanDEM-X (TerraSAR-X add-on for Digital Elevation Measurement) is a space borne earth observation mission with the goal of generating a global Digital Elevation Model (DEM) with an unprecedented accuracy corresponding to the HRTI-3 specifications. TanDEM-X will fly in a special orbit formation (HELIX formation) with the fully compatible TerraSAR-X (TSX-1) satellite in order to collect interferometric SAR data. It is planned to cover the earth surface twice with different baselines. Presented in this paper is an optimization strategy, with the goal of a quasi-homogeneous height accuracy, which meets the HRTI-3 standard. The optimization has a major impact on the data acquisition plan. The acquisition of a DEM on a global scale requires an optimized mission plan, since the time, where both satellites are in orbit simultaneously, is limited to three years. Within this time the landmass is imaged in strip map mode twice, which allows for multi baseline phase unwrapping techniques. Using 167 satellite orbits, the region to be imaged has an across-track extension of about 240km at the equator. This region is subdivided into several swaths, so called data takes. The swath-width is determined by the timing, but also by the pattern of the SAR antenna. The shape of the antenna beam and SAR system parameters, like the pulse repetition frequency (PRF) or the transmitted bandwidth, are in the focus of the optimization. The quantity, which is a measure for the quality in any DEM, is the height accuracy. Therefore the optimization concentrates directly on this parameter, rather than trying to maximize a single parameter, e.g. the signal to noise ratio (SNR). In the first part of the paper, a height performance model is presented, taking into account several error sources, like thermal decorrelation, quantization errors, range- and azimuth-ambiguities, misregistration as well as volume decorrelation. The analysis is extended to different terrain-types and terrain-slopes, showing a significant impact on the height accuracy. The second part is dedicated to the optimization strategy. It has to be mentioned, that this optimization approach is a heuristic method, rather than a mathematical procedure with a cost function to be minimized. Since the parameters under consideration are in complex connection, the main challenge is to reduce the number of variables and still yield an accurate optimization result. Moreover a method is presented, how to fuse several independent interferometric data acquisitions to a single DEM, further increasing the height accuracy.
Resonant scattering by open periodic waveguides 1

This article concerns the interaction between guided electromagnetic or acoustic modes of a penetrable periodic planar waveguide and plane waves originating from sources exterior to the waveguide. The interaction causes resonant enhancement of fields in the waveguide and anomalous transmission of energy across it. A guided mode is an eigenfunction of a member of the family of operators in the Floquet- Bloch decomposition of the periodic differential operator underlying the waveguide structure. The theory of existence or nonexistence of modes in ideal lossless waveguides is founded on variational principles. The mechanism for resonant scattering behavior is the dissolution of an embedded eigenvalue into the continuous spectrum, which corresponds to the destruction of a guided mode of a waveguide, upon pertur- bation of the wavevector or the material properties or geometry of the structure. Analytic perturbation of functions that unify the guided modes and the extended scattering states gives rise to asymptotic formulas for transmission anomalies.
Super-Hamiltonian Structures and Conservation Laws of a New Six-Component Super-Ablowitz-Kaup-Newell-Segur Hierarchy

A six-component super-Ablowitz-Kaup-Newell-Segur (-AKNS) hierarchy is proposed by the zero curvature equation associated with Lie superalgebras. Supertrace identity is used to furnish the super-Hamiltonian structures for the resulting nonlinear superintegrable hierarchy. Furthermore, we derive the infinite conservation laws of the first two nonlinear super-AKNS equations in the hierarchy by utilizing spectral parameter expansions. PACS: 02.30. Ik; 02.30. Jr; 02.20. Sv.
Eikonal Description of HF Waves in Toroidal Plasmas

The authors discuss the use of the Eikonal approximation to describe the propagation and absorption of HF waves in toroidally confined plasmas. Particular attention is devoted to the derivation of a power transport equation in agreement with conservation of energy, and to the formulation of appropriate boundary conditions when the waves are launched by electrically short antennas. The ray equations are then applied to investigate the occurrence of radial reflections, which can affect the accessibility of the plasma core to HF heating; examples are given for waves in the Lower Hybrid and in the Ion Cyclotron frequency ranges. Finally, the use of the power transport equation for the evaluation of power deposition profiles during HF heating of Tokamak plasmas is illustrated by the example of Lower Hybrid waves launched by a phased waveguide array.
Investigation of Teacher Job-Performance Model: Organizational Culture, Work Motivation and Job-Satisfaction

The research is intended to develop a Teacher Job-performance Model by considering causal relationship between teacher job-performance determinants i.e. Organizational Culture, Organizational Structure, and Work Motivation. It was found that path coefficient of organizational culture to work motivation is 0.333 at a significant level of F1/141= 3.908, at α F2/140= 3.061, at α F3/139= 2.669, at α < 0.05. Finally, indirect effect of organizational culture on job-satisfaction and job-peformance through work motivation is 0.087, and 0.078 respectively. It is concluded that the Model suggested fits with data collected, as a result, it can be used for perdicting teacher job-performance, including teacher promotions and feedback for improving teacher performance.
Spectral signatures of disk eccentricity in young binary systems - I. Circumprimary case

Context. Star formation occurs via fragmentation of molecular clouds, which means that the majority of stars born are members of binary systems. There is growing evidence that planets might form in circumprimary disks of medium-separation (≲50 AU) binaries. The tidal forces caused by the secondary generally act to distort the originally circular circumprimary disk to an eccentric one. Since the disk eccentricity might play a major role in planet formation, it is of great importance to understand how it evolves. Aims. We investigate disk eccentricity evolution to reveal its dependence on the physical parameters of the binary system and the protoplanetary disk. To infer the disk eccentricity from high-resolution near-IR spectroscopy, we calculate the fundamental band (4.7 μm) emission lines of the CO molecule emerging from the atmosphere of the eccentric disk. Methods. We model circumprimary disk evolution under the gravitational perturbation of the orbiting secondary using a 2D grid-based hydrodynamical code, assuming α-type viscosity. The hydrodynamical results are combined with our semianalytical spectral code to calculate the CO molecular line profiles. Our thermal disk model is based on the double-layer disk model approximation. We assume LTE and canonical dust and gas properties for the circumprimary disk. Results. We find that the orbital velocity distribution of the gas parcels differs significantly from the circular Keplerian fashion. The line profiles are double-peaked and asymmetric in shape. The magnitude of asymmetry is insensitive to the binary mass ratio, the magnitude of viscosity (α), and the disk mass. In contrast, the disk eccentricity, thus the magnitude of the line profile asymmetry, is influenced significantly by the binary eccentricity and the disk geometrical thickness. Conclusions. We demonstrate that the disk eccentricity profile in the planet-forming region can be determined by fitting the high-resolution CO line profile asymmetry using a simple 2D spectral model that accounts for the velocity distortions caused by the disk eccentricity. Thus, with our novel approach the disk eccentricity can be inferred from high-resolution near-IR spectroscopy data acquired prior to the era of high angular resolution optical (ELT) or radio (ALMA, E-VLA) direct-imaging. By determining the disk eccentricity in medium-separation young binaries, we might be able to constrain the planet formation theories.
MODERNITY CRISIS AND ITS REFLECTIONS IN TARKOVSKY'S NOSTALGHIA AND MIRROR

This article examines the modernity crisis and the phenomenon of nostalgia in the works of the distinctive Russian film director Andrei Tarkovsky’s films Nostalghia (1983) and Mirror (1975). Within this perspective this study not only investigates the term, nostalgia, and its typology in the films, but also focuses on the socio-cultural and political refractions in the background that shape the director’s use of the concept. Tarkovsky’s cinema, particularly his last films, reflects the consequences of modernity crisis. In this regard his films Mirror and Nostalghia play an important role. This paper suggests that the film Nostalghia was made by the director in Italy in order to reveal this crisis in the case of a poet. The film, Nostalghia, removes the frontiers that developed in the Mirror, and puts the phenomenon nostalgia in the centre of the modernity crisis. To analyse the relationships between modernity crisis and Tarkovsky’s films, this study grounds its analytic perspectives on the qualitative-descriptive method. In this regard, the study will start with the general characteristics of Tarkovsky’s cinema and examine the typology of nostalgia, and then focus on his Nostalghia. After a detailed analysis of Nostalghia within this perspective, the article will compare it to another of his films, the controversial Mirror, to examine the changes in the master’s life.