Miracle-dz/UniFAR-FTUs huggingface dataset:
Alternate partial root-zone irrigation reduces bundle-sheath cell leakage to CO2 and enhances photosynthetic capacity in maize leaves

The physiological basis for the advantage of alternate partial root-zone irrigation (PRI) over common deficit irrigation (DI) in improving crop water use efficiency (WUE) remains largely elusive. Here leaf gas exchange characteristics and photosynthetic CO2–response and light–response curves for maize (Zea mays L.) leaves exposed to PRI and DI were analysed under three N-fertilization rates, namely 75, 150, and 300 mg N kg−1 soil. Measurements of net photosynthetic rate (An) and stomatal conductance (gs) showed that, across the three N-fertilization rates, the intrinsic WUE was significantly higher in PRI than in DI leaves. Analysis of the CO2–response curve revealed that both carboxylation efficiency (CE) and the CO2-saturated photosynthetic rate (Asat) were significantly higher in PRI than in DI leaves across the three N-fertilization rates; whereas the N-fertilization rates did not influence the shape of the curves. The enhanced CE and Asat in the PRI leaves was accompanied by significant decreases in carbon isotope discrimination (Δ13C) and bundle-sheath cell leakiness to CO2 (Φ). Analysis of the light–response curve indicated that, across the three N-fertilization rates, the quantum yield (α) and light-saturated gross photosynthetic rate (Amax) were identical for the two irrigation treatments; whilst the convexity (κ) of the curve was significantly greater in PRI than in DI leaves, which coincided with the greater CE and Asat derived from the CO2–response curve at a photosynthetic photon flux density of 1500 μmol m−2 s−1. Collectively, the results suggest that, in comparison with the DI treatment, PRI improves photosynthetic capacity parameters CE, Asat, and κ of maize leaves and that contributes to the greater intrinsic WUE in those plants.
Antifungal use influences Candida species distribution and susceptibility in the intensive care unit.

OBJECTIVES Antifungal prescription practices have changed over the last decade, and the impact of these changes is unclear. Our objective here was to evaluate the effect of antifungal drug use on the distribution and drug susceptibility of Candida spp. in a French intensive care unit (ICU). METHODS Antifungal drug use was measured as the number of defined daily doses per 1000 hospital days (DDDs/1000HD). The distribution of Candida spp. over a 6 year period (2004-09) and the MICs of antifungal drugs over 2007-09 were determined. Statistical analyses were performed to assess relationships between antifungal drug use, Candida spp. distribution and MIC changes over time. RESULTS Of 26,450 samples from 3391 patients, 1511 were positive for Candida spp. Candida albicans predominated (52.5%), followed by Candida glabrata (16.6%) and Candida parapsilosis (7.5%). C. parapsilosis increased significantly, from 5.7% in 2004 to 12.5% in 2009 (P = 0.0005). Caspofungin use increased significantly between 2004 (17.9 DDDs/1000HD) and 2009 (69.9 DDDs/1000HD) (P < 0.0001). Between 2007 and 2009, the increase in caspofungin use correlated significantly with the increase in caspofungin MICs displayed by C. parapsilosis (P < 0.0001) and C. glabrata (P = 0.03). Amphotericin B consumption changed over time and correlated with an increase in amphotericin B MICs for C. albicans (P = 0.0002) and C. glabrata (P = 0.0005). Significant declines occurred in both fluconazole use (P < 0.0001) and fluconazole MICs of C. albicans (P < 0.001) CONCLUSIONS Antifungal drug use in the ICU is associated with major changes in the distribution and drug susceptibility of Candida spp.
The ATLAS3D project – I. A volume-limited sample of 260 nearby early-type galaxies: science goals and selection criteria

The ATLAS3D project is a multiwavelength survey combined with a theoretical modelling effort. The observations span from the radio to the millimetre and optical, and provide multicolour imaging, two-dimensional kinematics of the atomic (H i), molecular (CO) and ionized gas (H beta, [O iii] and [N i]), together with the kinematics and population of the stars (H beta, Fe5015 and Mg b), for a carefully selected, volume-limited (1.16 x 105 Mpc3) sample of 260 early-type (elliptical E and lenticular S0) galaxies (ETGs). The models include semi-analytic, N-body binary mergers and cosmological simulations of galaxy formation. Here we present the science goals for the project and introduce the galaxy sample and the selection criteria. The sample consists of nearby (D 15 degrees) morphologically selected ETGs extracted from a parent sample of 871 galaxies (8 per cent E, 22 per cent S0 and 70 per cent spirals) brighter than M-K <-21.5 mag (stellar mass M-star greater than or similar to 6 x109 M-circle dot). We analyse possible selection biases and we conclude that the parent sample is essentially complete and statistically representative of the nearby galaxy population. We present the size-luminosity relation for the spirals and ETGs and show that the ETGs in the ATLAS3D sample define a tight red sequence in a colour-magnitude diagram, with few objects in the transition from the blue cloud. We describe the strategy of the SAURON integral field observations and the extraction of the stellar kinematics with the ppxf method. We find typical 1 Sigma errors of delta V approximate to 6 km s-1, delta Sigma approximate to 7 km s-1, delta h(3) approximate to delta h(4) approximate to 0.03 in the mean velocity, the velocity dispersion and Gauss-Hermite (GH) moments for galaxies with effective dispersion Sigma(e) greater than or similar to 120 km s-1. For galaxies with lower Sigma(e) (approximate to 40 per cent of the sample) the GH moments are gradually penalized by ppxf towards zero to suppress the noise produced by the spectral undersampling and only V and Sigma can be measured. We give an overview of the characteristics of the other main data sets already available for our sample and of the ongoing modelling projects.
An Object Oriented Approach to Web-Based Application Design

In this paper we discuss the use of an object-oriented approach for webbased applications design, based on a method named Object-Oriented Hypermedia Design Method (OOHDM). We first motivate our work discussing the problems encountered while designing large scale, dynamic web-based applications, which combine complex navigation patterns with sophisticated computational behavior. We argue that a method providing systematic guidance to design is needed. Next, we introduce OOHDM, describing its main activities, namely: conceptual design, navigational design, abstract interface design and implementation, and discuss how OOHDM designs can be implemented in the WWW. Finally, related work and future research in this area are further discussed.
Tweet the debates: understanding community annotation of uncollected sources

We investigate the practice of sharing short messages (microblogging) around live media events. Our focus is on Twitter and its usage during the 2008 Presidential Debates. We find that analysis of Twitter usage patterns around this media event can yield significant insights into the semantic structure and content of the media object. Specifically, we find that the level of Twitter activity serves as a predictor of changes in topics in the media event. Further we find that conversational cues can identify the key players in the media object and that the content of the Twitter posts can somewhat reflect the topics of discussion in the media object, but are mostly evaluative, in that they express the poster's reaction to the media. The key contribution of this work is an analysis of the practice of microblogging live events and the core metrics that can leveraged to evaluate and analyze this activity. Finally, we offer suggestions on how our model of segmentation and node identification could apply towards any live, real-time arbitrary event.
Wilson loops from multicentre and rotating branes, mass gaps and phase structure in gauge theories

Within the AdS/CFT correspondence we use multicentre D3-brane metrics to investigate Wilson loops and compute the associated heavy quark–antiquark potentials for the strongly coupled SU(N) super-Yang–Mills gauge theory, when the gauge symmetry is broken by the expectation values of the scalar fields. For the case of a uniform distribution of D3-branes over a disc, we find that there exists a maximum separation beyond which there is no force between the quark and the antiquark, i.e. the screening is complete. We associate this phenomenon with the possible existence of a mass gap in the strongly coupled gauge theory. In the finite-temperature case, when the corresponding supergravity solution is a rotating D3-brane solution, there is a class of potentials interpolating between a Coulombic and a confining behaviour. However, above a certain critical value of the mass parameter, the potentials exhibit a behaviour characteristic of statistical systems undergoing phase transitions. The physical path preserves the concavity property of the potential and minimizes the energy. Using the same rotating-brane solutions, we also compute spatial Wilson loops, associated with the quark–antiquark potential in models of three-dimensional gauge theories at zero temperature, with similar results.
The readiness to change questionnaire in subjects with hazardous alcohol consumption, alcohol misuse and dependence in a general population survey.

AIMS To investigate properties and aspects of validity of the Readiness to Change Questionnaire (RCQ) when applied to hazardous drinking, alcohol-abusing or alcohol-dependent subjects sampled from the general population. METHODS In a representative survey conducted in the general population of a region in northern Germany, participants were randomly selected from resident registration office files, contacted and interviewed personally (n = 4.075). A total of 302 subjects who showed hazardous drinking behaviour (n = 202) or met diagnostic criteria of alcohol misuse (n = 46) or alcohol dependence (n = 54) were assessed and diagnosed using the Munich Composite International Diagnostic Interview (M-CIDI) according to DSM-IV diagnostic criteria. The battery of self-report questionnaires comprised, among others, the RCQ, and two methods of allocation were used, the quick method and the refined method of allocation. According to the method of allocation used, the stages are: precontemplation (PC), contemplation (C), preparation (P) and action (A); P may only be assigned using the refined method. RESULTS The RCQ, a brief instrument to assess stages of change in individuals sampled from the general population, gave internal consistencies of: PC = 0.68, C = 0.79, A = 0.83. Allocation to stages of change according to the quick method resulted in 67% of subjects being allocated to PC, 24% to C and 8% to A and according to the refined method in 58% to PC, 15% to C, 4% to P, 4% to A, with 19% not being classified because of non-theory-consistent scale profiles. CONCLUSIONS Classification did not differ substantially according to the method of allocation. A three-factor solution, as reported in the literature, could not be replicated. Allocation to stages of change with the RCQ reflected predictions made from the Transtheoretical Model of behaviour change.
MtDNA Profile of West Africa Guineans: Towards a Better Understanding of the Senegambia Region

The matrilineal genetic composition of 372 samples from the Republic of Guiné‐Bissau (West African coast) was studied using RFLPs and partial sequencing of the mtDNA control and coding region. The majority of the mtDNA lineages of Guineans (94%) belong to West African specific sub‐clusters of L0‐L3 haplogroups. A new L3 sub‐cluster (L3h) that is found in both eastern and western Africa is present at moderately low frequencies in Guinean populations. A non‐random distribution of haplogroups U5 in the Fula group, the U6 among the “Brame” linguistic family and M1 in the Balanta‐Djola group, suggests a correlation between the genetic and linguistic affiliation of Guinean populations. The presence of M1 in Balanta populations supports the earlier suggestion of their Sudanese origin. Haplogroups U5 and U6, on the other hand, were found to be restricted to populations that are thought to represent the descendants of a southern expansion of Berbers. Particular haplotypes, found almost exclusively in East‐African populations, were found in some ethnic groups with an oral tradition claiming Sudanese origin.
Generating API-usage example for project developers

Usage examples have been shown very helpful for API learning in software reuse. Nowadays, many approaches have been proposed to automatically extract usage examples from client code or web pages for API users. However, they overlooked the benefit of API developers in example publishing and few works paid attention to help API developers to generate usage examples automatically. In this paper, we proposed an approach to generate API-usage example based on test code before the project are released. It analyzed which parts in test code are important for indicating API-usage and summarized some test code patterns, then a heuristic slice algorithm are proposed to extract referential test code as API-usage example based on these patterns. In the experiments, we gave some case studies on the commons-lang3 open source software library. It proved that our approach can provide good assistance for developers in APIs usage example generation.
Far-Infrared [C II] Line Survey Observations of the Galactic Plane

We present results of our survey observations of the [C II] 158 μm line emission from the Galactic plane using the Balloon-borne Infrared Carbon Explorer (BICE). Our survey covers a wide area (350° ≲ l ≲ 25°, |b| ≲ 3°) with a spatial resolution of 15'. We employed a new observing method called "fast spectral scanning" to make large-scale observations efficiently. Strong [C II] line emission was detected from almost all areas we observed. In the general Galactic plane, the spatial distribution of the [C II] line emission correlates very well with that of far-infrared continuum emission, but diffuse components are more prominent in the [C II] line emission; the I[C II]/IFIR ratio is ~0.6% for diffuse components but is ~0.2% for compact sources such as active star-forming regions. In the Galactic center region, on the other hand, the distribution of the [C II] line emission is quite different from that of the far-infrared continuum emission, and the I[C II]/IFIR ratio is systematically lower there. The FWHM velocity resolution of our instrument is 175 km s-1, but we determined the central velocity of the line at each observed point very precisely with statistical errors as small as ±6 km s-1. The longitudinal distribution of the central velocity clearly shows the differential rotation pattern of the Galactic disk and also violent velocity fields around the Galactic center.
Seeking new language: Patriarch Kirill’s media strategy

ABSTRACT Media have become important arenas where religious institutions, alongside other players, articulate moral values and seek to shape societal norms and identities. Patriarch Kirill recognised early on the potential of using the media in spreading the Russian Orthodox Church’s mission and reaching out to wider audiences. From the very first days of his enthronement on 1 February 2009 he has taken the lead in developing a comprehensive media strategy aimed at increasing the Church’s presence in the public sphere. Both his words and deeds provide evidence of a momentous turnaround in the Church’s information and communication policy. His pursuit to endorse a revisited media strategy is determined by attempts to influence and control the way Russian Orthodoxy is portrayed in the public sphere. Moreover, the development of a large-scale media policy is motivated by the rising criticism towards the Church, voiced most notably on the internet. Based on the analysis of original and previously unexplored sources, this article illustrates the impact of media on a traditional religious organisation such as the Russian Orthodox Church and the response of the Church’s leadership to emerging challenges in a radically changing media environment.
SPITZER-IRS STUDY OF THE ANTENNAE GALAXIES NGC 4038/39

Using the Infrared Spectrograph on the Spitzer Space Telescope, we observed the Antennae galaxies obtaining spectral maps of the entire central region and high signal-to-noise 5–38 μm spectra of the two galactic nuclei and six infrared-luminous regions. The total infrared luminosity of our six IR peaks plus the two nuclei is LIR = 3.8 × 1010 L☉, with their derived star formation rates ranging between 0.2 and 2 M☉ yr−1, with a total of 6.6 M☉ yr−1. None of the typical mid-IR tracers of active galactic nucleus activity is detected in either nucleus of the system, excluding the presence of a dust-enshrouded accretion disk. The hardest and most luminous radiation originates from two compact clusters in the southern part of the overlap region, which also have the highest dust temperatures. Polycyclic aromatic hydrocarbon (PAH) emission and other tracers of softer radiation are spatially extended throughout and beyond the overlap region, but regions with a harder and more intense radiation field show a reduced PAH strength. The strong H2 emission is rather confined around the nucleus of NGC 4039, where shocks appear to be the dominant excitation mechanism, and the southern part of the overlap region, where it traces the most recent starburst activity. The luminosity ratio between the warm molecular gas (traced by the H2 lines) and the total far-IR emission is ∼ 1.6 × 10−4, similar to that found in many starbursts and ultraluminous infrared galaxies. The total mass of warm H2 in the Antennae is 2.5 × 107 M☉, with a fraction of warm to total H2 gas mass of about 0.35%. The average warm H2 temperature is 302 ± 26 K and appears anticorrelated with the radiation field hardness, possibly due to an evolution of the photodissociation region (PDR) morphology. The previously reported tight correlation between the H2 and PAH emission was not found but higher total PAH emission to continuum ratios were found in PDRs with warmer gas.
Partial differential equation transform—Variational formulation and Fourier analysis

Nonlinear partial differential equation (PDE) models are established approaches for image/signal processing, data analysis, and surface construction. Most previous geometric PDEs are utilized as low‐pass filters, which give rise to image trend information. In an earlier work, we introduced mode decomposition evolution equations (MoDEEs), which behave like high‐pass filters and are able to systematically provide intrinsic mode functions (IMFs) of signals and images. Because of their tunable time–frequency localization and perfect reconstruction, the operation of MoDEEs is called a PDE transform. By appropriate selection of PDE transform parameters, we can tune IMFs into trends, edges, textures, noise, and so forth, which can be further utilized in the secondary processing for various purposes. This work introduces variational formulation, performs the Fourier analysis, and conducts biomedical and biological applications of the proposed PDE transform. The variational formulation offers an algorithm to incorporate two image functions and two sets of low‐pass PDE operators in the total energy functional. Two low‐pass PDE operators have different signs, leading to energy disparity, while a coupling term, acting as a relative fidelity of two image functions, is introduced to reduce the disparity of two energy components. We construct variational PDE transforms by using Euler–Lagrange equation and artificial time propagation. Fourier analysis of a simplified PDE transform is presented to shed light on the filter properties of high‐order PDE transforms. Such an analysis also offers insight on the parameter selection of the PDE transform. The proposed PDE transform algorithm is validated by numerous benchmark tests. In one selected challenging example, we illustrate the ability of PDE transform to separate two adjacent frequencies of sin (x) and sin(1.1x). Such an ability is due to PDE transform's controllable frequency localization obtained by adjusting the order of PDEs. The frequency selection is achieved either by diffusion coefficients or by propagation time. Finally, we explore a large number of practical applications to further demonstrate the utility of the proposed PDE transform. Copyright © 2011 John Wiley & Sons, Ltd.
1 1 2 Fe b 20 02 Random graphs as models of networks

The random graph of Erdős and Rényi is one of the oldest and best studied models of a network, and possesses the considerable advantage of being exactly solvable for many of its average properties. However, as a model of real-world networks such as the Internet, social networks or biological networks it leaves a lot to be desired. In particular, it differs from real networks in two crucial ways: it lacks network clustering or transitivity, and it has an unrealistic Poissonian degree distribution. In this paper we review some recent work on generalizations of the random graph aimed at correcting these shortcomings. We describe generalized random graph models of both directed and undirected networks that incorporate arbitrary non-Poisson degree distributions, and extensions of these models that incorporate clustering too. We also describe two recent applications of random graph models to the problems of network robustness and of epidemics spreading on contact networks.
Enhancement of Peripheral Alpha‐Receptor Stimulation by Blockade of “Silent” Beta Receptors

Evidence is presented for the existence of “silent” peripheral beta adrenergic receptors with which alpha-receptor stimulants might combine without producing measurable vasodilation. Addition of propranolol (1×10−7 M) or MJ-1999 (5×10−6 M) to Krebs solution perfusing canine isolated mesenteric arteries enhanced (1) the pressor responses to intra-arterially administered epinephrine, norepinephrine, and methoxamine and (2) the vasoconstrictor effects of perivascular sympathetic nerve stimulation. Enhancement of the pressor effects of epinephrine and norepinephrine was unaltered during cocaine or guanethidine potentiation. The doses of the beta-receptor blocking agents that enhanced pressor responses in isolated arteries were identical to those required to provide 80 to 100% blockade of the positive inotropic and chronotropic effects of epinephrine and norepinephrine in isolated rabbit hearts. Propranolol and MJ-1999 also enhanced the elevating effects of methoxamine on canine blood pressure. In higher concentrations, propranolol (1×10−4 M) and MJ-1999 (1×10−3 M) produced alpha-receptor blockade in the isolated arteries, and propranolol, but not MJ-1999, produced myocardial depression in isolated rabbit hearts. These data are interpreted as indicating that alpha-receptor stimulants usually combine with both peripheral alpha and beta adrenergic receptors, and blockade of the peripheral beta receptors makes more stimulant available for alpha-receptor stimulation.