Miracle-dz/UniFAR-FTUs huggingface dataset:
Assessment of Weed Competition Critical Period in Sugar Beet

Weed control constitutes the most essential issue in cropping systems. The critical periods should especially be determined for each crop. Field experiments were conducted during the seasonal growing periods of sugar beet in 2012 and 2013 in Kayseri, Turkey to assess the critical weed control period (CPWC). A log-logistic model having four parameters was used to assist in monitoring and analyzing two sets of related, relative crop yield. Data was obtained during the periods of increased weed interference and as to compare, during the weed-free periods. In both years, the relative root yield of sugar beet decreased with a longer period of weed-interference and increased where there was a longer weed-free period. In 2012, the CPWC varied between 122-595 GDD (growing degree days) corresponding to 12 to 46 days after crop emergence (DAE). The following year, CPWC were found to be between 82-735 GDD, (8-54 DAE) based on 5% acceptable yield loss. Weed-free conditions are needed to be arranged as early as the first week after crop emergence and maintained up to and including nine weeks thereafter to avoid more than a 5% loss in sugar beet root yield. Those results could assist sugar beet producers through reducing the expenses significantly, as well as improving the efficacy of their weed management programs.
QUENCHING AND ANISOTROPY OF HYDROMAGNETIC TURBULENT TRANSPORT

Hydromagnetic turbulence affects the evolution of large-scale magnetic fields through mean-field effects like turbulent diffusion and the α effect. For stronger fields, these effects are usually suppressed or quenched, and additional anisotropies are introduced. Using different variants of the test-field method, we determine the quenching of the turbulent transport coefficients for the forced Roberts flow, isotropically forced non-helical turbulence, and rotating thermal convection. We see significant quenching only when the mean magnetic field is larger than the equipartition value of the turbulence. Expressing the magnetic field in terms of the equipartition value of the quenched flows, we obtain for the quenching exponents of the turbulent magnetic diffusivity about 1.3, 1.1, and 1.3 for Roberts flow, forced turbulence, and convection, respectively. However, when the magnetic field is expressed in terms of the equipartition value of the unquenched flows, these quenching exponents become about 4, 1.5, and 2.3, respectively. For the α effect, the exponent is about 1.3 for the Roberts flow and 2 for convection in the first case, but 4 and 3, respectively, in the second. In convection, the quenching of turbulent pumping follows the same power law as turbulent diffusion, while for the coefficient describing the effect nearly the same quenching exponent is obtained as for α. For forced turbulence, turbulent diffusion proportional to the second derivative along the mean magnetic field is quenched much less, especially for larger values of the magnetic Reynolds number. However, we find that in corresponding axisymmetric mean-field dynamos with dominant toroidal field the quenched diffusion coefficients are the same for the poloidal and toroidal field constituents.
The Value of (Stock) Liquidity in the M&A Market

Abstract We study the value of stock liquidity in the market for corporate control and show that the target firm’s liquidity has an impact on the transaction itself and on the resulting merged entity. We use a sample of U.S. merger and acquisition (M&A) transactions (1987–2007) to show that acquiring a more liquid firm makes the stock of the acquirer more liquid. This has consequences for M&A activity and pricing. Public acquirers are more likely than private acquirers to acquire more liquid targets. Liquidity also translates into a greater likelihood of completing the deal and higher compensation for the target.
Understanding value generation in buyouts

Buyouts have been described as a specific form of financial acquisition that leads to potentially substantial, but also highly volatile returns to equity investors. Previous research has illustrated a number of mechanisms through which buyouts cause increases or decreases in company value. Besides the traditional mechanisms like improved governance or incentive systems, more innovative and entrepreneurial levers like increasing strategic distinctiveness and mentoring are examined. While it is important to understand the performance impact of each of these levers individually, we are still missing a comprehensive framework that captures the full complexity of the buyout value generation process and recognizes interdependences between various factors. In this paper, we develop a three-dimensional conceptual framework for value generation in buyouts that categorizes and links the different levers of buyouts value generation. This framework provides the basis to take a look beyond individual value levers and sheds light on the underlying strategic logic of buyouts. We then review the literature on buyouts and categorize previously identified levers of value generation according to our framework. At the same time, we identify a number of levers that have received little attention in the academic literature so far or still lack convincing empirical support for their performance impact. Building upon this assessment of the status quo in research in buyout value generation, we outline an agenda for future research.
Do cats and dogs eat grass before a rain? Analysis of weather effects on order submissions and order imbalances

Using a database of Taiwan Stock Exchange Capitalization Weighted Index Futures (TXF) that allows to identify the investor type for an order submission, this study investigates the relationship between weather and both order submissions and order imbalances by investor type. The paper analyzes investors’ order imbalances from a behavioral perspective of weather effects other than any particular individual’s sentiment. In particular, the period under study, which covers the duration of dot-com bubble and financial tsunami, enables us to obtain the significant insight of the influence of weather on economic and financial decisions of individual and institutional investors during historically calm and panic periods. In sum, although weather does not significantly affect market and limit order imbalances of both individual and institutional investors, order imbalances of individual and institutional investors are differently influenced by weather during financial crises. The findings of this paper indicate the necessity for future study on individual investors’ abnormal behaviors during financial crises.
The VMC survey. XXVIII. Improved measurements of the proper motion of the Galactic globular cluster 47 Tucanae

We use deep multi-epoch PSF photometry taken with the Visible and Infrared Survey Telescope for Astronomy (VISTA) to measure and analyze the proper motions of stars within the Galactic globular cluster 47 Tucanae (47 Tuc, NGC 104). The observations are part of the ongoing near-infrared VISTA survey of the Magellanic Cloud system (VMC). The data analyzed here corresponds to one VMC tile and covers a total sky area of 1.77 deg^2. Absolute proper motions with respect to ~9070 background galaxies are calculated from a linear regression model applied to the stellar positions in 11 epochs in the Ks filter. The data extend over a total time baseline of ~17 months. We found a median proper motion of the stars within 47 Tuc of (mu_a cos(d), mu_d) = (+5.89 +/- 0.02(stat) +/- 0.13(sys), -2.14 +/- 0.02(stat) +/- 0.08(sys)) mas/yr, based on the measurements of ~35000 individual sources between 5' and 42' from the cluster center. We compared our result to the proper motions from the newest US Naval Observatory CCD Astrograph Catalog (UCAC5) which includes data from the Gaia data release 1. Selecting cluster members (~2700 stars) we found a median proper motion of (mu_a cos(d), mu_d) = (+5.30 +/- 0.03(stat) +/- 0.70(sys), -2.70 +/- 0.03(stat) +/- 0.70(sys)) mas/yr. The values derived from the VMC data are consistent with the UCAC5 result, and are close to literature measurements obtained using HST. We combined our results with literature radial velocity measurements and reconstructed the orbit of 47 Tuc, finding that the cluster is on a low-ellipticity orbit and is confined within the inner ~7.5 kpc of the Galaxy. We show that the use of an increased time baseline combined with PSF-determined stellar centroids in crowded regions significantly improves the accuracy of the method. In future works, we will apply this method to more VMC tiles to study in detail the kinematics of the Magellanic Clouds.
Angiogenesis inhibition in high grade glioma Verhoeff

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On Estimating The Effects of Legalization: Do Agricultural Workers Really Benefit?

The question of whether legalization affects the economic returns of immigrants has been the focus of many empirical studies in the past two decades. Their results have consistently shown that there exists significant wage differences between legal and illegal workers. However, the validity of such findings have been questioned by many researchers, given the lack of good identification strategies to correctly account for omitted variables. In this article we move away from the methods previously used in the literature, which in most part rely on selection on observables, and propose to use recently developed techniques designed specifically to address the issue of selection into treatment based (in some degree) on unobservable variables. Our results highlight that measuring such effects is much more difficult, from an econometrics standpoint, than what previous analysis claim and suggest that lower skill levels and not discrimination explain differences in economic outcomes of immigrants. (This abstract was borrowed from another version of this item.)
Empirical Analysis of Money Demand Function with Economic Uncertainty

The studies on the demand for money rarely focus on the economic uncertainty rather than the scale variable (i.e., output), opportunity cost variables (i.e., interest rate and inflation rate) and external variable (i.e., exchange rate). To overcome this matter, this paper examines the relationships between the demand for money and economic uncertainty in 9 selected countries, including 4 selected developed countries and 5 selected developing countries. The findings suggest that the optimal economic uncertainty index can serve as an uncertainty indicator in signaling central bank’s economic policy decision making. This paper also suggests that the output, interest rate, inflation rate and exchange rate are useful indicators for the central bank’s economic policy decision making.
Molecular Characterization of Peckia (Pattonella) intermutans (Walker,1861) (Diptera: Sarcophagidae) based on the Partial Sequences of theMitochondrial Cytochrome Oxidase I Gene

We analyzed nucleotide sequences that constitute a part of the mitochondrial cytochrome oxidase subunit I (COI) gene from individuals of Peckia (Pattonella) intermutans (Walker, 1861) (Diptera: Sarcophagidae) of different populations from the States of Sao Paulo and Bahia, Brazil. Indices of genetic variability were calculated and phylogenetic tests (Maximum Parsimony) were applied. The presence of at least five haplotypes among sampled individuals was observed. Pairwise sequence differences within P. (P.) intermutans haplotypes were lower than the pairwise sequence differences between the haplotypes and outgroup species. This finding, in addition to the phylogenetic analyzis performed in this study, validates the use of molecular tools for distinguishing species of P. (P.) intermutans from other sarcophagids already molecularly characterized in Brazil so far. The greatest number of haplotypes (n = 3), genetic diversity (π = 0.01), and nucleotidic differences (k = 2.38) were found from specimens in Ubatuba, reflecting the low rate of genetic flow in this population compared to those from other locations; this was probably influenced by the local ecotope, i.e., the tropical rainforest called “Mata Atlântica”. At collection areas within the rainforest, the vegetal cover is well preserved and this could significantly influence evolutive factors such as population size and selection towards genetic drift, supporting variability maintenance. Further investigations should be conducted for a better understanding of this finding and for expanding knowledge about the close relationships among P. (P.) intermutans and other sarcophagids of forensic importance.
IFRS Adoption In The E.U., Accounting Harmonization And Markets Efficiency: A Review

As of 1st January 2005 all European listed companies had to adopt IAS/IFRS in order to prepare their consolidated financial statements. Half a decade later, the paper analyzes the advancements in the accounting harmonization process within European countries and between E.U. and the rest of the world, over-viewing the first available evidence on the effects on financial markets efficiency. The paper aims at providing an updated description of the process of IFRS adoption in the E.U., pointing out the positive aspects and the main drawbacks and reviews the major contribution provided by the literature during the last years on this subject.
Explorer Refining Liver Safety Risk Assessment

Citation for published version: Longo, DM, Generaux, GT, Bengry-Howell, A, Siler, SQ, Antoine, D, Button, D, Caggiano, JA, Eisen, JA, Iaci, J, Stanulis, R, Parry, T, Mosedale, M & Watkins, PB 2017, 'Refining Liver Safety Risk Assessment: Application of Mechanistic Modeling and Serum Biomarkers to Cimaglermin Alfa (GGF2) Clinical Trials' Clinical pharmacology and therapeutics, vol. 102, no. 6, pp. 961-969. DOI: 10.1002/cpt.711
Liquidity Transformation and Bank Capital Requirements

This paper presents a dynamic general equilibrium model where asymmetric information about asset quality leads to asset illiquidity. Banking arises endogenously in this environment as banks can pool illiquid assets to average out their idiosyncratic qualities and issue liquid liabilities backed by pooled assets whose total quality is public information. Moreover, the liquidity mismatch in banks' balance sheets leads to endogenous bank capital (outside equity) requirements for preventing bank runs. The model indicates that banking has both positive and negative effects on long-run economic growth and that business-cycle dynamics of asset prices, asset illiquidity and bank capital requirements are interconnected.
Incubation Behavior and Body Mass of Female Greater Snow Geese

Nest attentiveness and behavior of incubating female Greater Snow Geese (Anser caerulescens atlanticus) was monitored on Bvlot Island. NWT in 1990-l 99 1. Females incubated about 94% of the time through much bf the incubation period but nest atten- tiveness declined to 9 1% at approximately 6 days before hatch then rose to close to 100% in the last l-4 days. Females took recesses throughout the 24 day incubation period, but frequency increased in the third week of incubation then decreased markedly in the last l- 4 days. During the latter half of the incubation period, individual females took an average of 5-7 recesses/day during which they remained close to the nest, and most devoted more than 90% of the time to feeding vigorously on sprouting graminoids. Mean recess duration was constant at about 15-16 min, except for the last l-4 days when it increased to ~30 min. Females captured during late incubation had relatively high body mass (X = 2,158 g) which represented a loss of only 17% in mass during incubation and showed that body reserves had not been depleted. Retaining some body reserves through to hatch may increase survival of females and may enhance their capability of caring for the young during brood rearing. In comparison with other large geese, Greater Snow Geese showed a low rate of nest attentiveness and took frequent recesses during which they fed intensively; they relied more heavily on food obtained in the breeding area (as opposed to reserves laid down during migration) and lost a smaller proportion of their initial mass during incubation. This strategy appears to be imposed by the lengthy migration to the high Arctic, which reduces the amount of stored reserves available for the demands of nesting.
REPRODUCTIVE ALLOCATION OF CORISPERMUM ELONGATUM IN TWO TYPICAL SANDY HABITATS

The annual plant Corispermum elongatum is endemic to the sandy soils in the Horqin Sandy Land of eastern Inner Mongolia, China. It plays an important role in sand stabilization and vegetation restoration in the Horqin region. However, studies about the difference of reproductive allocation in C. elongatum in different sandy habitats were limited. To detect this, a test was conducted on typical fixed and mobile sand dunes in the Horqin Sandy Land. The results showed that habitat type had a significant effect on the pattern of reproductive allocation in C.elongatum. The dry weight of reproductive structure, spike number, length of spike, dry weight of vegetative structure, dry weight of reproductive structure relative to total above-ground dry weight biomass, and the number of primary branches were all larger in C. elongatum plants in fixed sand dunes than in mobile sand dunes. The resources allocated to reproduction were size-dependent and also affected by the habitats sampled. C.elongatum plants inhabiting the better fixed-dune habitat seem to allocate more resources to reproduction to increase population size, while vegetative growth appears to be relatively more important for the survival of C.elongatum in the harsh mobile-dune habitat. This information is important for a better understanding of the adaptation strategy of C.elongatum in different habitats.
L1–THEORY FOR THE KOLMOGOROV OPERATORS OF STOCHASTIC GENERALIZED BURGERS EQUATIONS

This paper contains supplementary results to the recent paper [21] by the two authors. It focuses on the L–theory of a class of Kolmogorov operators L in infinitely many variables which e.g. are associated to stochastic generalized Burgers equations. Their L–theory is developed with respect to a whole class of reference measures identified in this paper, which contains in particular infinitesimally invariant measures for L. Essential maximal dissipativity for L with initial domain given by C–smooth bounded cylinder functions is proved to hold on L(ν) for all measures ν in this class. The obtained respective C0–semigroup on L(ν) is proved to come from the semigroup of kernels constructed in [21]. Finally, a measure is constructed in this class which is of full topological support, i.e. charges every non–empty open set of the underlying infinite dimensional space, which here is L(0, 1). November 17, 2003
Root anchorage of saplings and cuttings of woody pioneer species in a riparian environment

Summary 1The root anchorage ability of saplings and vegetative propagules may be decisive for persistence of woody pioneers in the highly disturbed habitat of floodplains. 2Vertical uprooting resistance was investigated in saplings of three floodplain pioneers of central Europe, Alnus incana, Populus nigra and Salix elaeagnos, at the near-natural River Tagliamento, north-east Italy. Uprooting resistance of planted cuttings of P. nigra and S. elaeagnos was studied at this site and in an experimental garden. 3Uprooting resistance was lowest in saplings of A. incana, intermediate in P. nigra, and highest in S. elaeagnos. For cuttings, differences in uprooting resistance between species were evident only under floodplain conditions, where resistance was higher in P. nigra than in S. elaeagnos. This difference was related to better growth in P. nigra. 4The anchorage ability of saplings may be one factor influencing the longitudinal and transverse zonation of species in floodplains, as S. elaeagnos is restricted to highly disturbed sites close to the main channel, whereas A. incana and P. nigra occupy more stabilized habitats. For vegetative propagules, in contrast, regeneration ability may be more important than uprooting resistance.
UNIVERSITAT POLITECNICA DE CATALUNYA ( UPC )-BARCELONATECH Sentiment Analysis on Twitter by Rocco Proscia

Master in Innovation and Research in Informatics Specialization in Data Mining and Business Intelligence Facultat d’Informatica de Barcelona (FIB) In recent years more and more people have been connecting with Social Networks. One of the most used is Twitter. This huge amount of information is attracting the interest of companies. One reason is that this huge source of information can be used to detect public opinion about their brands and thus improve their business values. In order to transform the information present in the Social Networks into knowledge several steps are required. This project aim to describe them and provide tools that are able to perform this task. The first problem is how to retrieve the data. Several ways are available, each one with its own pros and cons. After that it is necessary to study and define proper queries in order to retrieve the information needed. Once the data is retrieved you may need to filter and explore your data. For this task a Topic Model Algorithm ( LDA ) has been studied and analyzed. LDA has shown positive results when it is tuned in the proper way and it is combined with appropriate visualization techniques. The difference between a Topic Model Algorithm and other Clustering/Segmentation techniques is that Topic Models allows each ”document” ( instance ) to belong to more than one topic ( cluster ). LDA doesn’t natively work well on Twitter due to the very short length of the tweets. An investigation in the literature has revealed a solution to this problem. Another problem that is common in clustering is how to validate the Algorithm and how to choose the proper number of topics ( clusters), for this problem several metrics in the literature have been explored.
The Relationship Among Population Size, Requests for Bareback Sex, and HIV Serostatus in Men Who Have Sex With Men Using the Internet to Meet Sexual Partners

Recent research has indicated the use of the Internet to meet sexual partners among men who have sex with men (MSM) is increasing. This medium also serves as a major source for social and sexual networking among MSM who live in more rural areas. In addition, data suggest the use of the Internet to initiate sexual relationships among this population may increase the risk of transmission of sexually transmitted infections, including HIV. The purpose of this study was to examine differences between self-reported HIV serostatus and requests for condomless bareback (BB) sex among a sample of Florida MSM (n = 483) using a popular Internet sexual networking site to meet sexual partners. Specifically, these variables were assessed in relation to population size among the site's seven geographic regions within the state. Findings indicated an overall statistically significant relationship among requests for BB sex and self-reported HIV serostatus. However, there was not a significant relationship among these variables and geographic region. Thus, although previous data have emphasized the importance of different HIV prevention strategies among rural versus urban MSM, there may not be major differences in HIV serostatus and requests for unsafe sexual practices among these men who use the Internet to meet sexual partners in comparison to MSM in more populated areas.