Miracle-dz/UniFAR-FTUs huggingface dataset:
The Carbon and Nitrogen Abundance Ratio in the Broad Line Region of Tidal Disruption Events

The rest-frame UV spectra of three recent tidal disruption events (TDEs), ASASSN-14li, PTF15af, and iPTF16fnl, display strong nitrogen emission lines but weak or undetectable carbon lines. In these three objects, the upper limits of the C iii] /N iii] ratio are about two orders of magnitude lower than those of quasars, suggesting a high abundance ratio of [N/C]. With detailed photoionization simulations, we demonstrate that and are formed in the same zone, so the Ciii]/N iii] ratio depends only moderately on the physical conditions in the gas and weakly on the shape of the ionizing continuum. There are smaller than 0.5 dex variations in the line ratio over wide ranges of gas densities and ionization parameters at a given metallicity. This allows a robust estimate of the relative abundance ratio of nitrogen to carbon. We derive a relative abundance ratio of [N/C] > 1.5 for ASASSN-14li, and an even higher one for PTF15af and iPTF16fnl. This suggests that the broad line region in those TDE sources is made of nitrogen-enhanced core material that falls back at later times. Based on stellar evolution models, the lower limit of the disrupted star should be larger than . The chemical abundance of the line-emitting gas provides convincing evidence that the flares originate from stellar tidal disruptions. The coincidence of the weakness of the X-ray emission with the strong broad absorption lines in PTF15af and iPTF16fnl, and the strong X-ray emission without such lines in ASASSN-li14, are analogous to quasars with and without broad absorption lines.
A Compact Umbrella-Shaped UWB Antenna with Gain Augmentation Using Frequency Selective Surface

A compact (35 mm × 30 mm × 0.8 mm) co-planar waveguide fed ultra-wideband antenna with bended ground plane suitable for GPR applications is proposed in this article. The umbrella shaped radiating element is constructed using the intersection of two ellipses. The proposed antenna provides a wide impedance bandwidth of 10.35 GHz (3.05–13.4 GHz) covering the unlicensed UWB band. The simply structured antenna is easy to fabricate and to integrate in PCB board. A frequency selective surface (FSS) with two layers, each of 4 × 4 array, cascaded via air gap, is incorporated in the antenna as a substrate to enhance the gain by 2 to 4 dBi over the entire frequency band. Metamaterial inspired unit cells are chosen for the FSS layers, with unit cell dimension on the order of λ/10 with respect to 3 GHz, much less than λ/4. The spacing between the antenna and FSS is kept so as to enhance the gain value without hampering nearly flat gain response over the band. The gain is maintained between 5.5–8.5 dBi over the band. The antenna was investigated by comparing the simulated and measured fundamental antenna parameters. High radiation efficiency of more than 90% with non-varying group delay and nearly omnidirectional Hplane radiation pattern were achieved. Measurement results validated the antenna performance and gain enhancement due to the addition of FSS layers.
New Method of Artificial Neural Networks (ANN) in Modeling Broiler Production Energy Index in Alborz Province

During the past few years, modeling in agriculture has attracted considerable attention. New modeling methods including neural networks are employed in various industries, and it is necessary that their use in agriculture be also considered. This research addressed the trend of energy use in broiler farms in Alborz Province and sought to model the trend of energy consumption and production in these farms. For this purpose, 45 questionnaires were distributed among broiler producers of the province. The reported levels of energy consumption and production were 218.40 and 30.13 GJ per thousand broilers, respectively. The largest share of the energy consumed, 40%, 25%, 23% and 9%, was related to gas-oil, feed, natural gas, and electricity inputs. Indices of ratio, productivity, special energy, and net energy gain were reported to be 0.15, 0.01 kg per MJ, 76.28 MJ per kg and 188268 MJ per thousand broilers, respectively. Modeling of energy inputs and the index of energy ratio as the inputs and outputs, respectively, of various artificial neural networks indicated that the network having two hidden layers with 12 and 9 neurons in the first and second hidden layers, respectively, was the most suitable network for modeling. Results of evaluation of networks suggested that the values for the R2 and MAPE indices for the 12-9 neuron network were 0.98 and 3.078, respectively, which showed that about 98 percent of the actual data could be estimated with the help of this artificial neural network.
Should a More Personalized Approach be Applied to Hematopoietic Stem-Cell Transplantation?

Background: Allogeneic stem cell transplantation for older patients with hematological malignancies has generally been performed with reduced-intensity conditioning, as regimen-related toxicity prohibits a fully myeloablative conditioning regimen. We hypothesized that differences in intensity of conditioning are needed for different disease status. Patients and Methods: We analyzed 115 older patients with AML (55 years or older) who received conditioning with fludarabine and melphalan, with a melphalan dose of 140 mg/m2 (FM140) (N=73) or 100 mg/m2 (FM100) (N=42). Results: Overall, FM100 was associated with less TRM (18.1% versus 43.5%, p=0.007), and acute GVHD (aGVHD) (28.2% versus 36.7%, p=0.021) while relapse was similar (21.5% versus 25.5%, p=0.489). The lower TRM with comparable relapse rate resulted in higher survival for FM100 as compared with FM140 conditioning regimen, 3-year PFS was 60.2% and 28.6% (p=0.014). Conversely, patients with high-risk SWOG cytogenetics and adverse ELN risk had better survival outcomes with FM140 regimen due to lower relapse, while TRM was not different. In multivariable analysis, high-risk SWOG cytogenetics, adverse ELN risk and the development of grade 2-4 aGVHD predicted for worse PFS whereas using FM140 conditioning and aGVHD were an independent factor for TRM. Conclusion: These results suggest as a proof-of-principle that a differential approach should be applied for patients receiving an allogeneic hematopoietic stem cell transplant, not only based on age, but also on disease characteristics impacting the risk of relapse. Further studies are needed to develop a more personalized approach to hematopoietic stem cell transplant recipients.
Comparing the morphology of Potamogeton perfoliatus L. along environmental gradients in Lake Balaton (Hungary)

Potamogeton perfoliatus readily adopts different morphological forms, and is therefore especially suitable for investigating variations of aquatic plants' morphology according to different environmental con- ditions. This paper discusses the morphological diversity of P. perfoliatus at different sites in Lake Balaton, where it occurs as one of the dominant species. We measured 11 morphological variables which were analyzed statistically within the environmental gradients present in the Lake (gradients in trophic condition, water depth and in wave exposure). We found morphological differences between the plants growing on the south- ern shallow shore which is more exposed to waves and those growing on the northern, deeper and sheltered shore as well as differences along the trophic and the water depth gradient. On the northern shore plants were significantly longer, their internodes were longer and their leaves were relatively thinner (greater Standard Leaf Area). Plants were larger in the more nutrient rich western basins of the Lake and also showed morpho- logical changes along the water depth gradient. The different degrees of wave exposure probably interact partly with trophic differences due to lake morphology. However, we proved that modifications in plant mor- phology, of which some might be adaptive and therefore of importance in a changing environment, do occur in the common, submerged macrophyte P. perfoliatus in Lake Balaton.
Perfectionism and performance expectations at university: Does gender still matter?

The present study examines the relationship between the perfectionist orientation and performance expectations at university and whether gender moderates this relationship. One-hundred first year university students responded to two subscales from the Multidimensional Perfectionism Scale (MPS-HF): the Self-Oriented Perfectionism (SOP) subscale and the Socially Prescribed Perfectionism (SPP) subscale. Results of the study showed that SOP and SPP correlated positively. Students, regardless of gender, demonstrated higher levels of SOP than SPP. Both SOP and SPP correlated positively with performance expectations. Self- oriented perfectionists and high perfectionists reported significantly higher performance expectations than socially oriented perfectionists and non-perfectionists. There were no significant differences between socially oriented perfectionists and non-perfectionists nor were there significant differences between self-oriented perfectionists and high perfectionists in performance expectations. Gender did not moderate the effect of types of perfectionism on performance expectations. There were no gender differences in SOP, SPP, or performance expectations.
Influence of Point Environmental Conditions to the Present Species Richness of Fish and Mussel of Floodplain Pools in the Kizu River

The Kizu River ecosystem is characterized by lentic habitats such as pools or wando on the floodplain, providing habitats to Acheilognathus bitterlings and freshwater unionid mussels. In the last decade, however, these habitats have been degraded by the decrease in peak discharge and flood frequency and excessive vegetation expansion on the floodplain. In order to restore the suitable habitat structure for the Kizu River ecosystem, it is needed to find out relations of habitat condition required for bitterlings and mussels. We used principal component analysis (PCA) and generalized linear model (GLM) based on selected data by correlation analysis. Species richness of Bitterling was best explained by a model consist of location, age, transparency, mean grain size and DO one year ago. Species richness of mussel was best explained by a model consist of flooding frequency and depth of mud two years ago. Species richness of resident fish was best explained by low relative height, age, area and vegetation coverage and species richness of alien fish was explained by model consist of low relative, area, vegetation coverage and DO. Species richness of resident fish and alien fish were significantly correlated with habitat conditions of current year. The results indicate a range of habitat age for maintenance of fish and mussel diversity including more than two years old, is required in the Kizu River.
THE SERVICES QUALITY LEVEL ASSESSMENT AT THE TECHNICAL UNIVERSITY USING THE SERVQUAL

Printed ISSN: 2336-2375 Stasiak-Betlejewska, R. et al. (2014) “The Services Quality Level Assement at the Technical University Using the Srvqual Method”, Journal on Efficiency and Responsibility in Education and Science, Vol. 7, No. 3-4, pp. 53-58, online ISSN 1803-1617, printed ISSN 1803-1617, doi: 10.7160/eriesj.2014. 070302. THE SERVICES QUALITY LEVEL ASSESSMENT AT THE TECHNICAL UNIVERSITY USING THE SERVQUAL METHOD
Mode optimization for quantum-state tomography with array detectors

We demonstrate that it is possible to choose an optimal signal mode for state reconstruction when performing quantum-state tomography with array detectors. The mode optimization is done during the data analysis ~i.e., after all the data have been collected. We develop theoretically a procedure for finding the mode that satisfies a criterion which is quadratic in field operators; as examples we explicitly show how to maximize the average photon number, or the amount of quadrature squeezing. We experimentally demonstrate the technique by finding the mode which maximizes the average photon number for coherent-state signal beams occupying both linear and sinusoidal modes.
Intrinsic spin-orbit coupling in zigzag and armchair graphene nanoribbons

Starting from a tight-binding model, we derive the energy gaps induced by intrinsic spin-orbit (ISO) coupling in the lowenergy band structures of graphene nanoribbons. The armchair graphene nanoribbons may be either semiconducting or metallic, depending on their widths in the absence of ISO interactions. For the metallic ones, the gaps induced by ISO coupling decrease with increasing ribbon widths. For the ISO interactions, we find that zigzag graphene nanoribbons with odd chains still have no band gaps while those with even chains have gaps with a monotonic decreasing dependence on the widths. First-principles calculations have also been carried out, verifying the results of the tight-binding approximation. Our paper reveals that the ISO interaction of graphene nanoribbons is governed by their geometrical parameters.
Acta Polytechnica

This paper reports on change as an indicator that can be provide more focused goals in studies of development. The paper offers an answer to the question: How might management gain information from a simulation model and thus influence reality through pragmatic changes. We focus on where and when to influence, manage, and control basic technical-economic proposals. These proposals are mostly formed as simulation models. Unfortunately, however, they do not always provide an explanation of formation changes. A wide variety of simulation tools have become available, e.g. Simulink, Wolfram SystemModeler, VisSim, SystemBuild, STELLA, Adams, SIMSCRIPT, COMSOL Multiphysics, etc. However, there is only limited support for the construction of simulation models of a technical-economic nature. Mathematics has developed the concept of differentiation. Economics has developed the concept of marginality. Technical-economic design has yet to develop an equivalent methodology. This paper discusses an,alternative approach that uses the phenomenon of change, and provides a way from professional knowledge, which can be seen as a purer kind of information, to a more dynamic computing model (a simulation model that interprets changes as method). The validation of changes, as a result for use in managerial decision making, and condition for managerial decision making, can thus be improved.
Jaguar and puma attacks on livestock in costa rica

Human-felid conflicts threaten long-term conservation of jaguars ( Panthera onca) and pumas (Puma concolor). We interviewed ranchers from 50 ranches and inspected farms in northern Costa Rica that reported recent attacks on livestock by these 2 felids. We analyzed ranch characteristics, livestock management practices, details of predation, estimated market- value of economic losses, and ranchers' perception of damage. Ranchers reported 81 felid attacks on livestock, including 60 head of cattle, 16 horses, 3 sheep, 1 pig, and 1 goat. Mean size of ranches was 233 km 2 , and mean livestock herd size was 109, including cattle, horses, pigs, sheep, goats, and water buffalo (Bubalus bubalis). Mean value of an attacked animal was U.S. $177.75 (range = $15 to $854, n = 51), and cumulative loss for all cattle was U.S. $9,065. Eighty-four percent of ranchers reported the presence of jaguars on their property, and 36% perceived the presence of pumas. Economic losses were overestimated by ranchers. Management strategies to address these problems must take into account the small size of ranches and limitations of the cattle and livestock production system in Costa Rica. Damage quantification based on market values can provide a guide to establish an incentive program, but provisions are needed due to ranchers' potential discontent. The results of this study form the basis of Costa Rica's current technical assistance projects, as well as provide a protocol to evaluate reports of jaguar and puma attacks on domestic animals in the country.
Modelling Private Wealth Accumulation and Spend-down in the Italian Microsimulation Model CAPP_DYN: A Life-Cycle Approach

In microsimulation literature a limited number of models include a module aimed at analyzing and projecting the evolution of private wealth over time. However, this issue appears crucial in order to comprehensively evaluate the likely distributional effects of institutional reforms adopted to cope with population ageing. In this work we describe the implementation in the Italian dynamic micro simulation model CAPP_DYN of a new module in which households’ savings and asset allocation are modelled. In particular, we aim to account for possible behavioural responses to pension reforms in household savings. To this end, we rely on an approximate life cycle structural framework for estimating saving behaviour, while adopting a traditional stochastic micro simulation approach for asset allocation. In line with Ando and Nicoletti Altimari (2004), we emphasize the role of lifetime economic resources in households’ consumption decisions, yet we further account for internal habit formation and subjective expectations on pension outcomes in the econometric stage. In addition, we model intergenerational transfers of private wealth in a probabilistic fashion. As the behavioural hypothesis adopted can largely affect results, we compare our semi-structural life-cycle approach with the estimation and the simulation of a non-structural consumption rule, analyzing wealth and disposable income dynamics and their drivers according to the two methods, especially in a long-term intergenerational perspective. While a 'quasi' life cycle consumption profile, including saving responses to pension reforms, curbs the dynamics of wealth inequality compared to the non-structural approach, results for the period 2010-2050 suggest an increasing contribution of intergenerational transfers to the predicted increase in wealth dispersion. Although hypotheses on (the mean of) returns are neutral for the evolution of net wealth inequality, the differential between returns and productivity (r-g) parameters are crucial in affecting the dynamics of disposable income due to cumulated effect on capital incomes shares.
Feature Split-based Information Extraction in the Field of Medicine

In recent years, more and more studies have been done on symptom information extraction. These studies are mostly based on clinical medical records, and they focus only on symptom entities, which are not sufficient to convey the full symptom information. This paper presents a feature split-based approach to extract symptom information from Chinese medicine instruction texts. In this approach, the symptom information is split into two parts: symptom subject entity and symptom manifestation entity. The main idea of this method is to automatically recognize the symptom subject and symptom manifestation first, and then add these two identification results as features to the symptom information extraction task. Through a series of experiments based on Conditional Random Fields (CRF)- an effective model proved by lots of experiments in the field of medicine, it is obvious that the feature split-based approach proposed in this paper can obtain higher accuracy and recall rate in symptom information extraction.
An in-situ cell for characterization of solids by soft X-ray absorption

LBNL-55344 An in-situ cell for characterization of solids by soft X-ray absorption Running Title: In-Situ cell for soft X-ray absorption Ian J. Drake, a) Teris C.N. Liu, a,b) Mary Gilles, c) Tolek Tyliszczak, c) A.L. David Kilcoyne, d) David K. Shuh, c) Richard.A. Mathies, b) Alexis T. Bell a,c,∗) a) Department of Chemical Engineering, University of California, Berkeley, CA 94720- b) Department of Chemistry, University of California, Berkeley, CA 94720-1461 c) Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA d) Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (Received 15 March 2004) (Revised 29 June 2004) Review of Scientific Instruments To whom correspondence should be addressed Tel: 510-642-1536. Fax: 510-642-4778. E-mail: bell@cchem.berkeley. edu
Are a developing country's levels of economic and financial development key attracting factors for private investment into infrastructure sectors?

This paper seeks to assess the extent to which a developing country’s levels of economic and financial development are factors that attract private capital into infrastructure projects. We investigate these effects by means of SYS-GMM estimation techniques applied to 1990-2007 data on the power sector concerning 56 developing countries in which missing observations are handled through multiple imputation by chained equations (MICE). We find that the volume of private investment in electricity projects significantly increases with both the depth of the banking sector and the efficiency of the stock market whereas no significant effect of economic development, as measured by the natural log of GDP per capita, is found. Private investors also take a country’s institutional environment into account in their decisions to enter the power sector. While political, economic, and financial risk as captured in a country’s risk index seems to dampen private investment, investors do not seem to be averse to exchange rate risk. The level of corruption is also found to positively affect private participation in the financing of energy projects. These results suggest that both exchange rate and corruption may have been used by private investors as instruments to increase their expected return and further protect their investment.
ENHANCED REALIZATION PROBABILITY SEARCH

In this paper, we show that Realization Probability Search (RPS) significantly improves the playing strength of a world-class Lines-of-Action (LOA) computer program, even when used in combination with existing state-of-the-art αβ search enhancements. In a 600-game match, a RPS-based version of the program defeats the original one with a winning score of 62.5%. The main contribution of the paper, however, is the introduction of a much improved variant of RPS, called Enhanced Realization Probability Search (ERPS). The new algorithm addresses two weaknesses of RPS and overcomes them by using a better focussed re-searching scheme, resulting in both more robust tactical play and reduced search overhead. Our experiments in the domain of LOA show that ERPS offers just as a significant improvement over regular RPS, as the latter improves upon regular search. More specifically, the ERPS-based variant scores 62.1% against the RPS variant, and an impressive 72.2% score against the original program. This represents an improvement of over 100 ELO points over the original state-of-the-art player.
Feasibility of Rural Industries Development in Rural Areas (Rural Areas of Kermanshah City)

Technology deployment in rural areas with increase of stable income is associated with reduction in income differences and the patterns of consumption between urban and rural population. Rural areas like other communities have three sectors including; economy, agriculture, industry and services that a balanced relationship between the three sectors of agriculture, rural industries and services is a good way for the development of the developing countries. The main purpose of this paper is feasibility and measurement of establishing rural industries in rural areas of the city of Kermanshah. Analytical and descriptive method with an emphasis on survey and questionnaire is used. For extraction of guidelines, relevant experts in the SWOT model are used. The collected data was analyzed using SPSS software. The findings indicate that it is based on the opinions of the experts and the answerers, the area has a high potential for the creation and establishment of rural industries. As well as based on opinions of the experts, diversification strategy must be considered as the most important strategy regarding to the feasibility of rural areas.