Miracle-dz/UniFAR-FTUs huggingface dataset:
The effect of Neurofeedback Training on Working Memory and Perceptual-motor development in Athlete Boys

Background: This research aims to study the effect of neurofeedback training on the working memory and perceptual-motor development of athlete boys. Methods: Thirty athlete boy students of Gorgan province were selected by convenient sampling and participated in the research process. First, a pretest was conducted. All participants had done Wechsler digit span test and Lincoln-Oseretsky perceptual-motor capabilities test. After that, participants were randomly divided into test and control groups. Subjects of the experiment group had 12 one-hour sessions neurofeedback training while the control group subjects received no intervention during this time. Data were analyzed by using multivariate covariance test (MANCOVA) by SPSS 18. Results: The results of data analysis showed that there is a significant relationship between mean direct and reverse digit span numbers and perceptual-motor development of the experiment group before and after treatment (P<0.05) and neurofeedback training has positive effect on the working memory and perceptual-motor development of athlete boys. Conclusion: Regarding the results of the current research, it seems that neurofeedback training is effective on the working memory and perceptual-motor development of athlete boys; however, more research is required to achieve more definite results about the effective and perpetual effects of neurofeedback on the cognitive function of people.
The impact of layout dependent stress and gate resistance on high frequency performance and noise in multifinger and donut MOSFETs

The impact of STI stress on mobility and resulted transconductance (g<sub>m</sub>) degradation appear as a penalty of multi-finger devices for RF and analog design. Donut device layout is proposed to eliminate the STI transverse stress and achieve higher g<sub>m</sub>. Both NMOS and PMOS can benefit from the donut layout, with higher cut-off frequency (f<sub>T</sub>). However, the layout dependence of g<sub>m</sub> and gate resistance (R<sub>g</sub>) becomes a critical trade-off in determining high frequency performance other than f<sub>T</sub>, such as maximum oscillation frequency (f<sub>max</sub>) and RF noise. In this paper, a comparison between multi-finger and donut MOSFETs in terms of f<sub>T</sub>, f<sub>max</sub>, and NF<sub>min</sub> can provide a useful guideline of device layout for RF design using nanoscale CMOS technology.
Flexible Work Arrangements and Organizational Performance – The Difference between Employee and Employer-Driven Practices

Flexible work arrangements (FWAs) enable flexibility in the work design of employees and, consequently, can improve work-life balance and enhance organizational performance. Based on the disparate nature of previous findings and social exchange theory, we defined the two research questions with an aim to explore the impact of FWAs on organizational performance measured by both financial and non-financial indicators, while taking into account the employer versus employee-driven perspective of FWA application. The data on 12 different FWA practices was collected in 171 large-sized Croatian organizations by a questionnaire survey using CRANET methodology. Our findings suggest that organizational performance was higher in the employee-driven group of FWA practices. On the other hand, several employer-driven practices were found to be significantly, but negatively related to organizational performance. The main contribution of the paper is revealing the importance of work-life balance arrangements in achieving success and competitive advantage
Fly Ash Classification – Old and New Ideas

A key component of North American fly ash classification has long been major element chemistry by weight percentage: SiO2 + Al2O3 + Fe2O3 in the U.S.; CaO in Canada. The Canadian Standards Association (CSA) and the American Society for Testing and Materials (ASTM) recognize two classes of fly ash: Class F, normally produced from high-rank coals, and Class C, normally produced from low-rank coals. Coal rank has traditionally been an aspect of fly ash classification, particularly the division between low and high rank. In the search for an improved classification that provides meaningful information about the use of fly ash in concrete, the current classifications and the validity of using coal rank in classification are questioned.
Porphyry Copper Deposits of the American Cordillera

The Helvetia area porphyry copper deposits occur within an extensive Laramide porphyry system located in the Santa Rita Mountains, Pima County, Arizona. The entire system consists of four separate centers of copper mineralization: Rosemont, Peach-Elgin, Broadtop Butte, and Copper World. Mineralization and alteration are primarily of the contact pyrometasomatic type and hydrothermal alteration and zon­ ing of sulfide mineral assemblages resemble those observed at the Twin Buttes Copper Mine located approximately 30 kilo­ meters west of Helvetia. The stratigraphic sequence, ranging from Cambrian Bolsa Formation to Permian Rain Valley For­ mation, correlates well with sections developed in the Twin Buttes and Mission Mine areas. The Paleozoic section in the deposit area totals approximately 1 ,800 meters. Two Tertiary intrusives penetrate the Paleozoic-Meso­ zoic stratigraphy in the region. One, a quartz-monzonite stock, occurs primarily in the western portion of the project area. The other, a hydrothermally altered quartz-Iatite por­ phyry, is mineralized locally and the copper mineralization in adjacent exoskarn is considered to be genetically related to it. Limestones in contact with the porphyry have been lo­ cally metasomatically altered to lime-silicate skarns, princi­ pally tactite. The tactite is, for the most part, grossularite or andradite garnet with varying amounts of diopside, tremo­ lite, wollastonite, quartz, and vesuvianite. Occasional Ter­ tiary lamprophyric dikes intrude the area and the immediate region is underlain by Precambrian granodiorite. Ore mineralization was introduced during the later stages of pyrometasomatic hydrothermal alteration. Pri­ mary sulfide minerals include chalcopyrite, bornite, and py­ rite with chalcopyrite and pyrite predominating. These occur principally as veinlets, coarse disseminations, blebs, and clots within irregular lenticular zones lying in and gen­ erally parallel to the lime-silicate areas. A limited tonnage of secondary chalcocite and covellite occurs irregularly throughout the deposit. In the oxidized zone, a substantial tonnage of copper occurs as chrysocolla, azurite, malachite, cuprite, and chalcanthite. Minor amounts of silver, molyb­ denite, gold, sphalerite, and scheelite occur throughout the various mineral centers. Post-ore faulting, principally high-angle normal and thrust faulting, terminates all four mineral centers. The Peach-Elgin mineral center lies within the Helvetia Klippe and is considered to be the offset upper segment of the Cop­ per World mineral center. Approximately 570 holes have been drilled in the area by various companies: Lewisohn Copper Corp., Banner Mining Company, Anaconda, Anamax, and ASARCO. The deposit is amenable to open pit mining and the metallurgical recoveries should be similar to those achieved at the Mission and Twin Buttes Mines.
First-Order Sideband Pulling in Atomic Frequency Standards

Many high-performance atomic frequency standards, including cesium fountains and most optical standards, operate with pulsed measurements, that is, an atomic sample is prepared for measurement, the measurement is made, and the process is repeated at fixed intervals. By introducing frequency modulation of the excitation coherent with the measurement cycle time, we have observed biases in our primary frequency standard NIST-F1 that are much larger than the biases predicted by previous theories. We derive a theory of such biases for both Rabi and Ramsey excitations. We find agreement with the experimental measurements.
Taming Models of Prospect Theory in the Wild? Estimation of Vlcek and Hens (2011)

Shortcomings revealed by experimental and theoretical researchers such as Allais (1953), Rabin (2000) and Rabin and Thaler (2001) that put the classical expected utility paradigm von Neumann and Morgenstern (1947) into question, led to the proposition of alternative and generalized utility functions, that intend to improve descriptive accuracy. The perhaps best known among those alternative preference theories, that has attracted much popularity among economists, is the so called Prospect Theory by Kahneman and Tversky (1979) and Tversky and Kahneman (1992). Its distinctive features, governed by its set of risk parameters such as risk sensitivity, loss aversion and decision weights, stimulated a series of economic and financial models that build on the previously estimated parameter values by Tversky and Kahneman (1992) to analyze and explain various empirical phenomena for which expected utility doesn't seem to offer a satisfying rationale. In this paper, after providing a brief overview of the relevant literature, we take a closer look at one of those papers, the trading model of Vlcek and Hens (2011) and analyze its implications on Prospect Theory parameters using an adopted maximum likelihood approach for a dataset of 656 individual investors from a large German discount brokerage firm. We find evidence that investors in our dataset are moderately averse to large losses and display high risk sensitivity, supporting the main assumptions of Prospect Theory.
Automatic identification and placement verification of wearable wireless sensor nodes using atmospheric air pressure distribution

We present a new approach to identifying and verifying the location of wearable wireless sensor nodes (W2SNs) placed on a body by inferring differences in altitudes using atmospheric air pressure sensors. This technique is aimed at long-term, in-home monitoring applications of the elderly and patients with chronic conditions, where the user has the freedom to install and remove the W2SNs as required without caregiver assistance. Our prototype shows that each IEEE 802.15. 4-capable W2SN, employing pressure sensors, is capable of detecting altitude changes sufficient to distinguish between the relative elevation of a patient's arm and leg, and recognize which W2SN is placed on which limb; preliminary results show detection in altitudes down to 39cm apart.
Reproductive strategies and population structure in Leishmania: substantial amount of sex in Leishmania Viannia guyanensis

Leishmania species of the subgenus Viannia and especially Leishmania Viannia guyanensis are responsible for a large proportion of New World leishmaniasis cases. Since a recent publication on Leishmania Viannia braziliensis, the debate on the mode of reproduction of Leishmania parasites has been reopened. A predominant endogamic reproductive mode (mating with relatives), together with strong Wahlund effects (sampling of strains from heterogeneous subpopulations), was indeed evidenced. To determine whether this hypothesis can be generalized to other Leishmania Viannia species, we performed a population genetic study on 153 human strains of L. (V.) guyanensis from French Guiana based on 12 microsatellite loci. The results revealed important homozygosity and very modest linkage disequilibrium, which is in agreement with a high level of sexual recombination and substantial endogamy. These results also revealed a significant isolation by distance with relatively small neighbourhoods and hence substantial viscosity of Leishmania populations in French Guiana. These results are of epidemiological relevance and suggest a major role for natural hosts and/or vectors in parasite strain diffusion across the country as compared to human hosts.
The Impact of Childhood Sexual Abuse on the Educational Attainment and Adult Earnings of Canadian Women *

The purpose of this paper is to measure the effect of childhood sexual abuse on economic outcomes amongst Canadian women. The paper is motivated by a simple utility maximizing model in which we assume that individuals invest ‘effort’ into two activities: the development of social relationships and the formation and use of human capital. The model suggests that even if the experience of childhood sexual abuse has no ‘positive’ effect on any aspect of the victim’s life, it is possible that the victim may transfer sufficient energies from one set of activities to another that ‘output’ from the latter may increase. For example, the individual might compensate for the harm to her socialization skills by ‘throwing herself’ into academic and work-related activities. The 1999 General Social Survey, Cycle 13: Victimization is used to estimate various ordered response models to determine whether childhood sexual abuse has an effect on educational and income attainment. Our empirical results suggest that females who were first sexually abused before age seven or after age twelve, on average, experienced no effect on educational attainment or income level. Females who were first abused between the ages of seven and twelve, however, completed higher levels of education and earned higher incomes than did females who were not abused. JEL: C25, J24
Détection de changements dans des images à très haute résolution spatiale par analyse de texture : application en milieu urbain

Remote sensing Change detection Texture analysis Urban area Suburban area Change detection in very high spatial resolution images using texture analysis: application to urban areas The objective of this study is to develop a method able to detect and qualify changes in small areas from Very High spatial Resolution (VHR) remote sensing data acquired at different dates and from different sources. To cope with these constraints, the originality of the method is based on comparing the textural properties of the objects of interest. As a first step, the proposed method extracts the objects by a region growing segmentation and then, their texture are compared. The texture characterization is based on an analysis of the coefficients coming from a wavelet decomposition. This method has been applied in the suburban environment of city of Rennes. The suburban areas are very heterogeneous and subject to sudden and irregular changes in time and space. Land use and land cover changes that occurred between 1978 and 2003 are detected by a pair of images: a grey scale aerial photograph and a panchromatic Quickbird image. The classification rates ranging from 78% to 85% in overall accuracy show the importance of texture for classification of VHR images. The method allows to detect changes in agricultural practices in parcels that are under urban pressure.
Disseminated Infection with Balamuthia mandrillaris in a Dog

Bilateral chronic granulomatous nephritis and meningoencephalitis were diagnosed on necropsy of a 2-year-old male Great Dane dog. The causative agent was identified as Balamuthia mandrillaris, based on morphologic features, immunohistochemical staining, and deoxyribonucleic acid detection using the polymerase chain reaction with newly designed primer pairs. Trophozoite and cystic forms of the amoeba were evident within the kidneys and brain parenchyma. This is the first report on a B. mandrillaris infection in a dog.
Infiltration Characteristics of No-Till vs . Conventional Tillage in Indiana and Illinois Farm Fields

Rainfall simulation and ponded infiltrometer methods were used to investigate the infiltration characteristics of no-till vs. conventional tillage farms. Seven pairs of no-till and conventional till farms under a corn-soybean rotation were selected on soils ranging from sandy loam to silty clay barns. The relative importance of surface residue and macroporosity (number of earthworms and middens) in both tillage systems was evaluated through the use of three different infiltration measurement techniques, and by the removal or addition of surface residue. The results of the ponded infiltration tests indicate that on the silt loam and silty clay loam soils, no-till farms had higher infiltration rates than those of conventional farms when earthworm activity and/or residue amount were higher in the no-till farms. On sandy loam soil, when earthworm activities were similar for both notill and conventional farms, conventional farms had higher infiltration rates than the no-till farms. Under simulated rainfall, placing residue cover on the conventional plots generally increased final infiltration rates for silt loam and silty clay loam soils. Furthermore, in the absence of plant residues, the no-till farms had equal and/or significantly higher infiltration rates than the corresponding conventional farms on the sites with silt loam and silty clay loam soils. As was the case with ponding infiltration, the terminal infiltration rate for the no-till farm was less with rainfall simulator than for the conventional farm, at the site with sandy loam soil.
Evolution of C . diphtheriae strains during different phases of the diphtheria epidemic in Belarus

Valentina Kolodkina, Leonid Titov, Tatyana Sharapa, Francine Grimont, Patrick AD Grimont, Androulla Efstratiou 1 Belarusian Research Institute for Epidemiology and Microbiology, Minsk, Belarus; 2 Centre National de Reference pour Corynebacterium diphtheriae, Unite de Biodiversite des Bacteries Pathogenes Emergentes INSERM U 389, Institute Pasteur, Paris, France; 3 HPA/WHO Streptococcus and Diphtheria Reference Unit, Respiratory and Systemic Infection Laboratory, Health Protection Agency Centre for Infections, London, UK;
Laparoscopic Robot-Assisted Pancreas Transplantation: First World Experience

Background. Surgical complications are a major disincentive to pancreas transplantation, despite the undisputed benefits of restored insulin independence. The da Vinci surgical system, a computer-assisted electromechanical device, provides the unique opportunity to test whether laparoscopy can reduce the morbidity of pancreas transplantation. Methods. Pancreas transplantation was performed by robot-assisted laparoscopy in three patients. The first patient received a pancreas after kidney transplant, the second a simultaneous pancreas kidney transplantation, and the third a pancreas transplant alone. Operations were carried out through an 11-mm optic port, two 8-mm operative ports, and a 7-cm midline incision. The latter was used to introduce the grafts, enable vascular cross-clamping, and create exocrine drainage into the jejunum. Results. The two solitary pancreas transplants required an operating time of 3 and 5 hr, respectively; the simultaneous pancreas kidney transplantation took 8 hr. Mean warm ischemia time of the pancreas graft was 34 min. All pancreatic transplants functioned immediately, and all recipients became insulin independent. The kidney graft, revascularized after 35 min of warm ischemia, also functioned immediately. No patient had complications during or after surgery. At the longer follow-up of 10, 8, and 6 months, respectively, all recipients are alive with normal graft function. Conclusions. We have shown the feasibility of laparoscopic robot-assisted solitary pancreas and simultaneous pancreas and kidney transplantation. If the safety and feasibility of this procedure can be confirmed by larger series, laparoscopic robot-assisted pancreas transplantation could become a new option for diabetic patients needing beta-cell replacement.
Comparison of two commercially available ELISA antibody test kits for detection of human antibodies against Coxiella burnetii

Background: Q fever is a zoonosis caused by Coxiella burnetii. The disease is emerging in many parts of the world, likely in part due to increased awareness and the availability of better diagnostic tests. The clinical diagnosis of Q fever is difficult, and most confirmed cases rely on serology. Methods: This study compared the sensitivity, specificity, and performance of 2 commercial enzyme-linked immunosorbent assay (ELISA) kits, with a commercial microimmunofluorescence antibody test (IFA) used as reference. Results: One of the ELISA kits showed a higher sensitivity and a lower cross-reactivity than the other kit. Likewise, the same kit was superior when comparing the area under the receiver operating characteristic curves. Conclusions: The results support the continued use of IFA as a primary serological test for Q fever; for large numbers of samples, an ELISA kit can be used as a screening tool, if followed by a confirmatory IFA test.
Photophysiological acclimation of Phaeocystis antarctica Karsten under light limitation

Primary production models and pigment algorithms for remote optical systems including satellites, moorings, or drifters depend on an improved understanding of the relationship between spectral light absorption, pigments, and photosynthesis for species of phytoplankton that are widespread and numerically abundant. Cultures of colonial Phaeocystis antarctica, a prymnesiophyte that can dominate the phytoplankton community in the Southern Ocean, were grown under blue light at seven different levels ranging from 14 to 542 µmol quanta m−2 s−1 at 4°C under nutrient‐replete conditions. Chlorophyll‐specific absorption (a*ph) at 436 nm increased linearly from 0.03 to 0.11 m2 mg chlorophyll a−1 with increasing light intensities. This variability is attributed to pigment packaging effects and pigmentation. The 2.5‐fold range in the values of a*ph(676 nm) demonstrates significant pigment packaging effects due to the intracellular pigment content, single cell diameter within the colony, and thylakoid stacking. Quantum yield for growth (Φμ) varied 30‐fold, ranging from 0.003 to 0.09 mol carbon fixed (mol quanta absorbed)−1. Under low light conditions, the relatively high (Φμ) and high a*ph(λ) may enable Phaeocystis to accumulate a seed population to initiate blooms at the beginning of spring when light levels are low, mixed layers are deep, and sea ice is still significant. These aspects of its photophysiology may contribute to the ecological success of Phaeocystis in polar regions.
Effect of Insecticides on the Population of Aphids , Natural Enemies and Yield Components of Wheat

Field experiment was conducted at Agricultural Research Institute-Tarnab Peshawar, KPK to determine the effect of different insecticides on the population of wheat aphids, its natural enemies and yield, yield components of wheat. Two wheat varieties, one susceptible and one ''partially resistant'' against aphids, were sown in a randomized complete block design in split plot arrangement, in three replicates. Varieties were kept in the main plots, while subplots received four insecticides, Thiamethoxam 25 GW at the rate of 24 g acre,-1 Imidaclopride 20% EC at the rate of 70 ml acre,-1 Acetamiprid 20 SP at the rate of 150 g acre,-1 Orange peel extract at the rate of 2500 ml acre -1. In main plot one plot was kept as control. In the sprayed plots the aphids infestation was reduced compared to control. The synthetic insecticides had sharply decreased aphids population, compared to orange peel extract plots where less aphid reduction was noticed. Wheat grain yield and yield parameters like thousand grain weight and number of grains per spike were improved in Imidaclopride treated plots compared to other treatments. If a cultivar is ''partially resistant'' the damage suffered by aphids should be lower than the damage suffered by a ''susceptible''. However, when both were treated with selective insecticides; Saleem-2000, suffered less damage compared to Pirsabak-2004. Host plant defense and natural enemies should be a good IPM package against wheat aphids. But in case of aphids population build up and to avoid economic losses selective insecticides should be applied to control wheat aphids.