Miracle-dz/UniFAR-FTUs huggingface dataset:
IRON NUTRITION OF PLANTS: AU OVERVIEW ON THE CFIEMISTRY AND PHYSIOLOGY OF ITS DEFICIENCV AND TOXICITY 1

Iron deficicncy and toxicity are iinportant yield limiting factors in crop production around the world. In this review, an attempt is made to summarize the information on diagnosis of Fe deíiciency and toxicity, chemistry of Fe in soil, mechanism of Fe uptake, role of chelates in Fe nutrition, factors affecting Fe availability to crop plants and measures required to correct Fe deficiency and toxicity. A brief discussion about Fe toxicity iii flooded rice is also included. Information presented in this review article should provide a basis for cõrrecting this nutritional disorder ia crop plants, and indicates new research efforts nceded to solve Pc stress problems.
Understanding enhanced tourist experiences through technology: a brief approach to the Vilnius case

espanolLa presente investigacion estudia el concepto de experiencias turisticas y su mejora a traves de tecnologia, dando una perspectiva sobre las practicas de co-creacion y adquisicion de poder de los clientes. Neuhofer y Buhalis (2013) introdujeron un nuevo concepto de experiencias de tecnologia turistica, generando una comprension conjunta de la nueva era de experiencias relacionada con las experiencias, la co-creacion y la tecnologia. Si se analiza la promocion de las ciudades, Vilnius representa un caso interesante de adopcion de tecnologias inteligentes para mejorar la experiencia turistica y facilitar poder del cliente en dominio de turismo de Vilnius. Este estudio pretende determinar experiencias de tecnologia turistica para medir factores que dan poder al cliente en el caso de los visitantes internacionales en Vilnius (Lituania). El enfoque de la mezcla de metodos (contenidos cualitativos en linea y analisis de la funcionalidad y encuesta cuantitativa) fue seleccionado como la forma las adecuada para conseguir el proposito de esta investigacion con la intencion de encontrar una base para la aplicacion de tecnologia turistica experiencias en mercado turistico de Vilnius. El trabajo concluye con la definicion del nivel actual de aplicacion de las TIC para mejorar la co-creacion de la experiencia turistica y el desarrollo de experiencias, realizando un analisis de implicaciones practicas de la tecnologia turistica. EnglishThe present research investigates the notion of enhanced tourist experiences through technology shedding light on co-creation practices and empowerment of customers. Neuhofer and Buhalis (2013) introduced a novel concept of technology-enhanced tourist experiences by generating a joint comprehension of new era of experiences which conjoin the elements of experiences, co-creation and technology. Being one of rather promoting cities in online environment Vilnius represents an interesting case of successive adoption of smart technologies in order to enhance tourist experiences and facilitate customer empowerment in Vilnius tourism domain. This study aims to determine technology-enhanced tourist experiences in order to measure factors of customer empowerment on the example of international incoming tourists to Vilnius (Lithuania). The mix-methods approach (qualitative online content and functionality analysis and quantitative survey) was justified as being the most appropriate for the purpose of this research with intention to find a basis for applying of technology-enhanced tourist experiences in Vilnius tourism marketplace. The paper concludes with the definition of current level of ICTs application to enhance tourist experience co-creation and a discussion of practical implications of technology-enhanced tourist experiences development.
Analysis of the Impact of Trading Liquidity on the Development of Investment Time Horizon on the Example of the Warsaw Stock Exchange

The importance of liquidity has been acknowledged for a long time now. Liquidity is defined as the ease with which an asset can be converted into cash. A considerable number of studies investigated stock liquidity providing evidence that more illiquid stocks yield higher returns which include an illiquidity premium. According to Amihuda and Mendelson (1986b: 43–48), a required rate of return on the shares (gross, i.e. after taking into account the cost of liquidity) should increase with increasing liquidity, but the marginal increase should decrease with an increasing investment horizon, thus decreasing the likelihood of premature termination of the investment. As a result, investors with different investment horizons may require different rates of return per unit of time from the same shares (Huang 2003: 104–129). Investor horizon is the time period for which an investor holds a stock. Most of the research conducted on investment horizon links it to liquidity, supporting the thesis that it is negatively related to liquidity. “Transaction costs and the holding periods for common stocks” written by Atkins and Dyl (1997: 309–325) is one of the first papers to investigate the effects of liquidity on holding period. The aim of this study is to show the dependencies occurring between the phenomena of investment horizon and asymmetric information and the liquidity of shares of a company.
The School Library Web Site: On the Information Highway or Stalled in the Carpark

Based on research conducted in 1996 and 1999, this paper discusses theoretical issues and provides an overview of the purposes for which school libraries are creating and maintaining home pages or World Wide Web sites. In 1996, a content analysis was performed of Web sites of 50 school libraries in the United States, Australia, Canada, Sweden, Singapore, Iceland, Kuwait, New Zealand, and Norway. A longitudinal study was designed in 1999 to examine: whether the Web pages/sites included in the 1996 study have been developed further or improved; the current "state of the art" in terms of school library Web sites; overall improvement in the school library Web pages/sites; differences in aims, purposes, design, organization, and content of school library Web pages/sites between 1996 and 1999; and new ways of organizing links and any evidence of a developing consensus about the best way(s) of organizing links for effective use. The research has implications for those who are planning a Web page/site for their school library/media center; it provides information about what other school libraries/media centers have done and suggests some pitfalls that might be avoided. It also suggests areas for further study, notably the possible development of a model that might be used for the evaluation of school library Web sites. (Contains 42 references.) (MES) Reproductions supplied by EDRS are the best that can be made from the original document. The School Library Web Site PERMISSION TO REPRODUCE AND DISSEMINATE THIS MATERIAL HAS BEEN GRANTED BY
Drift Independent Volatility Estimation Based on High, Low, Open, and Close Prices

We present a new volatility estimator based on multiple periods of high, low, open, and close prices in a historical time series. The new estimator has the following nice properties: it is (a) unbiased in the continuous limit, (b) independent of the drift, (c) consistent in dealing with opening price jumps. Furthermore, it has the smallest variance among all estimators with similar properties. The improvement of accuracy over the classical close-to-close estimator is dramatic for real-life time series. Copyright 2000 by University of Chicago Press.
A Review About Transfer Learning Methods and Applications

The machine learning plays the key roles in many artificial intelligence areas including classification, regression and clustering. The traditional machine learning methods assume that the training and test sample are drawn from the same feature space and the same distribution. With the change of the distribution, the traditional machine learning methods need to rebuild the models using newly collected training samples. In real world, it is impossible or expensive to recollect and label the needed training samples and rebuild the models. To address the problem, the transfer learning is proposed.
The Hsp70 Stress Response and its Genetic Background in South American intertidal and subtidal Limpets (Nacella)

The alterations in environmental parameters anticipated during global climate change are predicted to intensify physiological stress to marine ectotherms and impose selective regimes on their stress-tolerance capacities. The limits to which the effects on ecosystems will be buffered by phenotypic plasticity and adaptation of populations appear unpre- dictable. One of the most universal reactions to environmental stress is the classic heat shock response, and its evaluation in intertidal invertebrates, which experience extreme fluctuations in stress levels, may be useful to advance in the mechanistic understanding of future regime shifts. Using real-time RT-qPCR, I quantified the heat shock response in limpets of the genus Nacella that had been subjected to tidal emersion under natural conditions in field experiments at two locations in Chile. In a subpolar limpet population from Punta Arenas in the Strait of Magellan, high-intertidal limpets showed delayed stress responses, including markedly lower expression of the hsp70A gene, in comparison to their subtidal congeners. Low-intertidal limpets from a warmer acclimatized population sampled at Puerto Montt (Central Chile) exhibited the highest stress response to tidal emersion, presumably due to higher temperatures affecting air exposed animals in a cold-temperate as compared to a subpolar environment. On the genomic level, the subtidal and intertidal subpopulations display a conspicuous divergence in two distinct hsp70A allele groups, as evidenced by a discrepancy in F’st estimates in comparison to neutral genetic markers. My work indicates that Patagonian limpets show a graded heat shock response, increasing from South to North on a latitudinal gradient and from low to high on a tidal stress gradient. It provides indication for adaptive divergence of the hsp70A gene in these South American limpets, which might be explained by the selective effect of environmental stress caused by tidal emersion. Furthermore, it illustrates the great explanatory potential, but also conceptual difficulties of the heat shock response as an integrative biomarker for environmental stress. Stability assessment of reference genes is an integral part of quantification of the response, as stress conditions can cause down-regulation of constitutive genes and lead to overestimation of stress response levels. The quantification of response levels has to be performed against a thoroughly assessed background of inter-individual variation, population dynamic history and potential sequence adaptation.
Eficàcia de la imitació, teràpia que activa les neurones mirall, en la rehabilitació de persones que han patit un ACV.

L’objectiu d’aquest projecte es avaluar l’eficacia de la terapia d’imitacio, basada en l’activacio de les neurones mirall, per augmentar la funcionalitat de l’extremitat superior paretica i millorar la qualitat de vida dels pacients que presenten un accident cerebrovascular a traves d’un assaig clinic controlat aleatoritzat. Es crea un grup experimental ( terapia imitacio mes terapia fisioterapia convencional) i un grup control ( terapia fisioterapia convencional) que duran a terme un tractament de 13 setmanes. Per a comprovar els resultats es realitzaran sis avaluacions ( primer dia, sis setmanes, tretze setmanes, sis mesos i al cap d’un any) a traves de les seguents escales: Medical Research Council (MRC) per la forca, Action Research Arm test (ARAT) per la motricitat de la ma, l’index de Barthel per al grau d’independencia de les activitats basiques de la vida diaria, l’index de Lawton i Brody pel grau d’independencia de les activitats instrumentals de la vida diaria i el SF-36 per la qualitat de vida.
Aspirin is capable of promoting apoptosis through prosta- glandin-dependent orprostaglandin-independent signaling pathways. In the prostaglandin-dependent pathways, inhibition of cyclooxygenase (COX), particularly COX-2, is the primary mechanism known to be involved in aspirin-induced CRC suppressio

Previous studies have demonstrated that aspirin serves an important role in chemoprevention and the suppression of colorectal cancer (CRC); however, the underlying mechanisms for this inhibition by aspirin remain unclear. Aspirin is capable of promoting apoptosis through prostaglandin-dependent orprostaglandin-independent signaling pathways. In the prostaglandin-dependent pathways, inhibition of cyclooxygenase (COX), particularly COX-2, is the primary mechanism known to be involved in aspirin-induced CRC suppression. Previous studies have implicated prostaglandin-independent signaling pathways and certain associated proteins, including SOX7, in aspirin-induced CRC suppression. In the present study, a newly-characterized association between aspirin, transforming growth factor (TGF)-β1 and CRC inhibition was identified. Specifically, aspirin triggers CRC cell apoptosis by inducing the secretion of TGF-β1, and the increased TGF-β1 then leads to apoptosis and proliferation inhibition in CRC cells.
Reviewing the Association between Early Attachment Style and Bystander Behavior in Instances of Bullying during Childhood and Adolescence

Author(s): Shannon, Roisin | Abstract: Although several studies have analyzed the correlation between early attachment style and the likelihood of becoming a bully or victim, little to no research has been conducted on a possible association between early attachment style and bystander behavior in children and adolescents. This is unfortunate because, though bystander intervention can help victims escape victimization, it rarely occurs. To determine whether there is a possible association between early attachment style and bystander behavior, this literature review analyzed research correlating early attachment with Moral Disengagement and Shame Management, both of which enable passivity. Analysis revealed that a plausible predictive relationship exists between passive bystander behavior and victim-blaming, and early attachment style. This literature review concludes with a discussion of limitations and suggestions for future research.
Comparative Study Between a Geothermal Heat Pump System and an Air-to-Water Heat Pump System for Heating and Cooling in Typical Conditions of the European Mediterranean Coast

To make a overall assessment of a Ground Coupled Heat Exchanger (GCHE) it is not only important to understand the behaviour of the GCHE, but also to consider the system in which it will operate: its loads and utilization factors (as a function of climate conditions and application), efficiency (which also depends on the heat pump) and other system parameters, such as pumping requirements, long term soil heat imbalance, etc. As part of the European project GEOCOOL [1], this paper shows the results of applying a methodology developed for the comparative study between a system combining a waterto-water reversible heat pump of commercial size with a vertical GCHE and an equivalent air-to-water heat pump system in typical conditions of the European Mediterranean rim (of great importance for cooling). For this purpose, the seasonal system performance factors for heating and cooling, and the temperature profiles of the water in the GCHE for a 25 year period were calculated for different borehole configurations and for different backfill materials. In addition, an extensive study of relevant climatological parameters of Valencia-Spain was made. These results were transformed into bin-hour data which are used for calculating the seasonal system performance factors for heating and cooling for the air-to-water heat pump system. The heat pump properties have been calculated using the IMST Group’s ART software [2]. Finally, a comparison was made between the GCHE-system and an air-to-water heat pump showing the efficiency improvement obtained for various grouting materials, and for different GCHE geometries.
Design and Test of Discrete Time Adaptive Backup Flight Control Laws

Abstract This paper is the result of a Master Thesis project performed at Saab AB. The main goal of the project was to design and implement a discrete time £ 1 adaptive back-up controller in pitch to increase performance for an agile fighter aircraft. A lateral controller was also developed as a secondary goal. A discrete time version of the Modified Piecewise Constant £ 1 adaptive control formulation was implemented. Results have shown that augmenting a state-feedback controller with an £ 1 adaptive controller increases robustness in the whole flying envelope, with satisfactory flying qualities. A switching scheme between two £ 1 controllers based on the extension of the landing gear was used to improve the controller performance throughout the whole envelope. The implemented controllers were flown in a simulator with a nonlinear generic fighter aircraft model with promising results.
Examining the Role of Fiscal Policy in Malaysian Stock Market

This paper analyzes the relationship between stock index and macroeconomic policies (fiscal and monetary) using quarterly data for Malaysia for 1999:Q1–2011:Q4. The change in stock index was used as a proxy for financial performance. The co-integration test utilizes to detect the existence of long run relationship between stock index and macroeconomic variables and develops a vector error correction model (VECM) to test the existence of short run relationship (elasticities) among the variables. The findings indicate that there exists long run relationship among stock index, fiscal and monetary tools. This indicates that fiscal and monetary tools play an important role in accelerating financial performance in Malaysia. However, monetary tools can work faster than fiscal tools. This result would give a signal to investors to strategize their investment decision in the short and long run.
MOLECULAR MODELING OF CHITOSAN / POLYETHYLENE OXIDE POLYMER BLENDS

The aim of this contribution is to give closer information about structure of chitosan/polyethylene oxide polymer blends in preparatory solution for electrospinning. Special attention has been paid to the interaction between both polymers. Molecular modeling using ab-initio force field in Accelrys Materials Studio modeling environment was performed in this study. Compositions of model systems were derived from the compositions of real preparatory solutions which are used as input for electrospinning process. Molecular modeling on the basis of energy minimization and molecular dynamics revealed that deacetylation as well as deprotonation of chitosan amino groups play a key role for stability of resulted polymer blend. Three following parameters were used to characterize the optimized models: interaction energies between investigated polymers, structure characteristics and miscibility factor as described by Flory-Huggins theory.
MATHEMATICAL MODEL OF THREE SPECIES FOOD CHAIN WITH HOLLING TYPE-III FUNCTIONAL RESPONSE

In this paper, we study ecological model with a tritrophic food chain composed of a classical Lotka-Volterra functional response for prey and predator, and a Holling type-III functional response for predator and super- predator. There are two equilibrium points of the system. In the parameter space, there are passages from instability to stability, which are called Hopf bifurcation points. For the first equilibrium point, it is possible to find bifur- cation points analytically and to prove that the system has periodic solutions around these points. Furthermore the dynamical behavior of this models are investigated. The dynamical behavior is found to be very sensitive to parameter values as well as the parameters of the practical life. Computer simulations are carried out to explain the analytical findings.
Node Level Energy Efficiency Protocol for Internet of Things

Internet of things (IoT) involves connecting all the devices and networks which work based on our surroundings, and can make our lives safer, healthier and faster. We are going to deliberate and explain energy issues that emerge while using Internet of Things. Universal detecting empowered by Wireless Sensor Network (WSN) innovations cuts crosswise over numerous territories of current living. This offers the capacity to quantify, derive and comprehend ecological pointers, from sensitive ecologies and characteristic assets to urban situations. The expansion of these gadgets in a communicating–actuating system that makes the Internet of Things (IoT) intriguing, wherein sensors and actuators mix consistently with nature around us, and the data is shared crosswise over stages to build up a typical working picture. Filled by the late adjustment of an assortment of empowering remote advancements, for example, RFID labels and inserted sensor and actuator hubs, the IoT has ventured out of its early stages and is the following progressive innovation in changing the Internet into a completely coordinated Future Internet. All these advancements in internet of things involves high energy consumption. The primary goal of our research paper is to propose a novel node level energy efficient (NLEE) routing protocol to improve energy efficiency. The validation of NLEE algorithm is confirmed using an IoT environment with discrete C ++ platform.
Nasal carriage of methicillin resistant Staphylococcus aureus and its antibiotic susceptibility pattern in adult hospitalized patients and medical staff in some hospitals in Cameroon

Methicillin-resistant Staphylococcus aureus (MRSA) have evolved as a major health care-acquired pathogen worldwide during the last three decades. A prospective study was carried out to ascertain the prevalence of nasal carriage of MRSA in health care workers and in hospitalized adult patients and their antibiotic susceptibility profile in Cameroon. The bacterial strains were identified by conventional method and the antibiotic resistance was carried out by the Kirby Bauer disc diffusion method. Of the 295 samples analysed, 120 (40.6%) were positive for S. aureus, 102 (34.6%) were MRSA. MRSA constituted 85% of all the S. aureus identified.The prevalence of nasal carriage of MRSA in medical staff was 41.3 and 32% for hospitalized patients. The MRSA carriage rate at the regional hospital, Limbe was 38%, 37.1% at the Yaounde University Teaching Hospital and 32.1% at Laquintinie Hospital, Douala. MRSA was identified in 34.2% of males and 35% of females. Most MRSA strains were highly sensitive to vancomycin and teicoplanin in patients; while in medical staff, most strains were sensitive to clindamycin. The highest rate of resistance in medical staff was recorded with penicillin G, trimethoprim/sulfamethoxazole and amoxicillin/clavulanic acid; while in hospitalized patients, gentamicin and erythromycin had the highest rate of resistance. Key words: Health care personnel, adult patients, nasal carriage, methicillin-resistantStaphylococcus aureus (MRSA), antibiotic susceptibility