Miracle-dz/UniFAR-FTUs huggingface dataset:
Speciation in Thaparocleidus (Monogenea: Dactylogyridae) Parasitizing Asian Pangasiid Catfishes

The phylogeny of monogeneans of the genus Thaparocleidus that parasitize the gills of Pangasiidae in Borneo and Sumatra was inferred from molecular data to investigate parasite speciation. The phylogeny of the Pangasiidae was also reconstructed in order to investigate host-parasite coevolutionary history. The monophyly of Thaparocleidus parasitizing Pangasiidae was confirmed. Low intraspecies molecular variability was observed in three Thaparocleidus species collected from geographically distant localities. However, a high intraspecies molecular variability was observed in two Thaparocleidus species suggesting that these species represent a complex of species highly similar in morphology. Distance-based and tree-based methods revealed a significant global fit between parasite and host phylogenies. Parasite duplication (i.e., intrahost speciation) was recognized as the most common event in Thaparocleidus, while the numbers of cospeciation and host switches were lower and similar to each other. When collapsing nodes correspond to duplication cases, our results suggest host switches in the Thaparocleidus-Pangasiidae system precluding congruence between host and parasite trees. We found that the morphometric variability of the parasite attachment organ is not linked to phylogeny, suggesting that the attachment organ is under adaptive constraint. We showed that haptor morphometry is linked to host specificity, whereby nonspecific parasites display higher morphometric variability than specialists.
AN EVALUATION OF THE UoWM MM 5-SMOKE-CMAQ MODELING SYSTEM FOR WESTERN MACEDONIA

The University of Western Macedonia (UoWM) has recently set up an operational system for predicting air quality in the Florina–Ptolemais–Kozani basin in Western Macedonia, Greece. This is a mountainous basin where around 65% of the total energy production of Greece takes place in lignite power plants. The concentrations of PM10 is the main air quality concern in the region, and the high particulate matter levels observed are attributed to the activities related to power generation. The system set up by the UoWM makes use of software such as MM5 for weather prediction, SMOKE for emissions processing, and CMAQ for air quality prediction. This paper describes a preliminary effort to evaluate the system by comparing its predictions against ground station observations for a selection of days of the 2007 summer period.
Phase-dependent modulation of the soleus H-reflex induced by rhythmic arm cycling

Rhythmic arm cycling is known to suppress the Hoffmann (H-) reflex in the soleus muscles of stationary legs; however, it is still unclear if this suppression is modulated by the phase of movement in the cycle path. In the present study we investigated phase-dependent modulation of the Sol H-reflex induced by rhythmic arm cycling. Modulation of the Soleus H-reflex was examined at 12 phases of the cycle path in 4 conditions; static arm positioning, as well as 3 arm cycling conditions, bilateral, ipsilateral and contralateral. H-reflexes were evoked and recorded at constant motor wave amplitudes across the conditions. Suppression of Sol H-reflex amplitude was dependent (main effect p<0.0001) upon the phase of movement during arm cycling, but not during static positioning. Results suggest that locomotor central pattern generators may contribute to the phasic reflex modulation observed in this study. iv TABLE OF CONTENTS SUPERVISORY COMMITTEE.ii ABSTRACT.iii TABLE OF CONTENTS.iv LIST OF FIGURES.v ACKNOWLEDGEMENTS.vi DEDICATION.vii CHAPTER 1: Introduction and review of literature.1 Central pattern generators.2 Supraspinal and somatosensory input to CPGs.4 The stretch reflex.6 Neural interlimb coupling of CPGs and reflexes.7 Phase-dependent modulation of the H-reflex.10 References.15 CHAPTHER 2: Manuscript.2
Vienna Wireless Testbed

Research in wireless data transmission and mobile communication is often based on simulations. Using such simulations one can compare the performance and verify the correct operation of developed algorithms and transmission schemes. Nevertheless, real-world performance measurements of wireless communiations techniques might give further insights and may help at investigating transmission scenarios where simulation is not feasable up to now. This work deals with the set-up, implementation and verification of a system for carrying out real-world measurements on wireless data transmission schemes. Based on an existing wireless multiple input multiple output (MIMO) testbed developed at the Institute of Telecommunications of the Vienna University of Technology, a redesign of the existing setup was necessary for being able to carry out measurements on today’s mobile communication standards. Within this work all major parts the wireless testbed consists of will be described. Furthermore, a description of all software implemented for carrying out measurements is given. The testbed is characterized in terms of signal to interference and noise ratio (SINR) and data throughput using a Long Term Evolution (LTE) signal. The obtained measurement results are compared with simulations to verify the correct operation of the involved hardware and software.
Virtual base stations for wireless mobile ad hoc communications: an infrastructure for the infrastructure‐less

In this paper, we propose a new protocol for wireless mobile ad hoc networks, which establishes a dynamic wireless mobile infrastructure. The proposed protocol, namely, the virtual base stations (VBS) protocol, mimics and maintains the operation of the conventional fixed infrastructure in cellular networks. In the VBS protocol, a mobile node is elected from a set of nominees to act as a temporary base station within its zone. We provide proofs for the correctness of the VBS protocol, and show lower and upper bounds for its global convergence time. Likewise, we study the characteristics and performance of VBS by means of simulation. It is shown that VBS scales well to large networks of mobile stations, and that it outperforms other infrastructure‐formation protocols in terms of stability. The VBS protocol would facilitate the development of a comprehensive and promising framework for quality of service (QoS) management in wireless mobile ad hoc networks once the proper integration of the MAC protocol with the routing and call admission control mechanisms is established. The VBS architecture lays the groundwork for assigning bandwidth, and/or implementing priorities, and hence for QoS‐based routing by conveying the quality of a path prior to call setup. Copyright © 2001 John Wiley & Sons, Ltd.
A comparison of two approaches for selecting covariance structures in the analysis of repeated measurements

The mixed model approach to the analysis of repeated measurements allows users to model the covariance structure of their data. That is, rather than using a univariate or a multivariate test statistic for analyzing effects, tests that assume a particular form for the covariance structure, the mixed model approach allows the data to determine the appropriate structure. Using the appropriate covariance structure should result in more powerful tests of the repeated measures effects according to advocates of the mixed model approach. SAS’ (SAS Institute, 1996) mixed model program, PROC MIXED, provides users with two information Criteria for selecting the ‘best’ covariance structure, Akaike (1974) and Schwarz (1978). Our study compared these log likelihood tests to see how effective they would be for detecting various population covariance structures. In particular, the criteria were compared in nonspherical repeated measures designs having equal/unequal group sizes and covariance matrices when data were both .
Ctf18 is required for homologous recombination-mediated double-strand break repair

The efficient repair of double-strand breaks (DSBs) is crucial in maintaining genomic integrity. Sister chromatid cohesion is important for not only faithful chromosome segregation but also for proper DSB repair. During DSB repair, the Smc1–Smc3 cohesin complex is loaded onto chromatin around the DSB to support recombination-mediated DSB repair. In this study, we investigated whether Ctf18, a factor implicated in the establishment of sister chromatid cohesion, is involved in DSB repair in budding yeast. Ctf18 was recruited to HO-endonuclease induced DSB sites in an Mre11-dependent manner and to damaged chromatin in G2/M phase-arrested cells. The ctf18 mutant cells showed high sensitivity to DSB-inducible genotoxic agents and defects in DSB repair, as well as defects in damage-induced recombination between sister chromatids and between homologous chromosomes. These results suggest that Ctf18 is involved in damage-induced homologous recombination.
Conceptual and Epistemic Aspects of Students' Scientific Explanations

This article explores how students' epistemological ideas about the nature of science interact with their conceptual understanding of a particular domain, as reflected in written explanations for an event of natural selection constructed by groups of high school students through a technology-supported curriculum about evolution. Analyses intended to disentangle conceptual and epistemic aspects of explanation reveal that groups sought plausible causal accounts of observed data, and were sensitive to the need for causal coherence, while articulating explanations consistent with the theory of natural selection. Groups often failed to explicitly cite data to support key claims, however, both because of difficulty in interpreting data and because they did not seem to see explicit evidence as crucial to an explanation. These findings reveal that students have productive epistemic resources to bring to bear during inquiry, but highlight the need for an epistemic discourse around student-generated artifacts to deepen both the conceptual and epistemological understanding students may develop through inquiry.
The Kormendy relation of massive elliptical galaxies at z ~ 1.5: evidence for size evolution

We present the morphological analysis based on HST-NIC2 (0.075 arcsec pixel -1 ) images in the F160W filter of a sample of nine massive field (>10 11 M ⊙ ) galaxies spectroscopically classified as early-types at 1.2 < z < 1.7. Our analysis shows that all of them are bulge-dominated systems. In particular, six of them are well fitted by a de Vaucouleurs profile (n = 4) suggesting that they can be considered pure elliptical galaxies. The remaining three galaxies are better fitted by a Sersic profile with index 1.9 < n fit < 2.3 suggesting that a disc-like component could contribute up to 30 per cent to the total light of these galaxies. We derived the effective radius R e and the mean surface brightness (SB) (μ) e within R e of our galaxies and we compared them with those of early-types at lower redshifts. We find that the SB (μ) e of our galaxies should get fainter by 2.5 mag from z ∼ 1.5 to ∼0 to match the SB of the local ellipticals with comparable R e , that is, the local Kormendy relation. Luminosity evolution without morphological changes can only explain half of this effect, as the maximum dimming expected for an elliptical galaxy is ∼ 1.6 mag in this redshift range. Thus, other parameters, possibly structural, may undergo evolution and play an important role in reconciling models and observations. Hypothesizing an evolution of the effective radius of galaxies we find that R e should increase by a factor of 1.5 from z ∼ 1.5 to ∼0.
Onset of Coherence in Hard Nuclear Collisions

From probabilistic to quantum-mechanical descriptions. Usually hard reactions are assumed to be associated with such a large momentum transfer that no interference should happen between amplitudes of hard interaction with different nucleons in a nucleus. This is indeed a good approximation at low and medium energies which correspond to the energy range of most fixed target experiments. For example, the longitudinal momentum transfer for charmonium production [1],
The Endocannabinoid System Promotes Astroglial Differentiation by Acting on Neural Progenitor Cells

Endocannabinoids exert an important neuromodulatory role via presynaptic cannabinoid CB1 receptors and may also participate in the control of neural cell death and survival. The function of the endocannabinoid system has been extensively studied in differentiated neurons, but its potential role in neural progenitor cells remains to be elucidated. Here we show that the CB1 receptor and the endocannabinoid-inactivating enzyme fatty acid amide hydrolase are expressed, both in vitro and in vivo, in postnatal radial glia (RC2+ cells) and in adult nestin type I (nestin+GFAP+) neural progenitor cells. Cell culture experiments show that CB1 receptor activation increases progenitor proliferation and differentiation into astroglial cells in vitro. In vivo analysis evidences that, in postnatal CB1−/− mouse brain, progenitor proliferation and astrogliogenesis are impaired. Likewise, in adult CB1-deficient mice, neural progenitor proliferation is decreased but is increased in fatty acid amide hydrolase-deficient mice. In addition, endocannabinoid signaling controls neural progenitor differentiation in the adult brain by promoting astroglial differentiation of newly born cells. These results show a novel physiological role of endocannabinoids, which constitute a new family of signaling cues involved in the regulation of neural progenitor cell function.
Secular trends in the Japanese labour market during the lost decades: A reply to Andrew Gordon

In a recent contribution (2017) Professor Gordon takes a very critical stance on our earlier article titled “Decades not lost, but won” (Blind and Lottanti von Mandach 2015), which he sees as ‘revisionist’ and as applying ‘too low a standard’. Professor Gordon provides a selection of granular data that might be understood as refuting two of our earlier findings, and attempts replication of the analysis underlying our third finding, but finds diverging evidence. While his labelling of our research is unpleasant, the implicit and explicit questioning of our results is troubling. This reply demonstrates that the evidence in Professor Gordon’s article does not challenge our earlier findings on aggregate developments during the ‘lost decades’ and provides explanation for the diverging results in Professor Gordon’s replication effort. We argue that the results of his replication only apply to the fraction of non-regular employees working full time, while ours applies to the large majority of part-time employees.
Environmental activity management: its use and impact on environmental performance

The study provides an insight into the application and usefulness of activity management (AM) principles in an environmental context. Specifically, the purpose of this paper is to examine the extent of use of environmental activity management (EAM) utilising Gosselin’s (1997) three levels of AM (namely, environmental activity analysis (EAA), environmental activity cost analysis (EACA), and environmental activity-based costing (EABC)). The study also examines the association between EAM and environmental performance, and the role of decision quality as a mediator in this relationship. ,Data were collected from 208 Australian organisations across different industries using a mail survey questionnaire. ,The results indicate a relatively high extent of EAA use but a low extent of use of EACA and EABC. In addition, organisations using each level of EAM to a greater extent were found to experience higher levels of environmental performance. Furthermore, the relationship between EAA and EABC with environmental performance was found to be mediated by decision quality. ,The findings suggest that organisations should endeavour to increase their use of EAM, and modify their existing costing systems to consider the drivers and costs of environmental activities. ,This is the first study to empirically examine the extent of use of EAM and its association with environmental performance.
Self-Stabilizing Firms and Unemployment Persistence

The question of why the unemployment rate takes a long time before it reverts back to its natural-rate following a negative exogenous shock has been the subject of unremitting interest in macroeconomics. This paper shows that the speed of adjustment to the steady-state unemployment and the degree of risk-aversion in firms are positively related. The reason is that risk-aversion in firms creates a self-adjusting mechanism whereby cautious firms try to vigorously regain the pre-shock employment levels in an attempt to minimize fluctuations in profits.
Rhinovirus Load Is High despite Preserved Interferon-β Response in Cystic Fibrosis Bronchial Epithelial Cells

Lung disease in cystic fibrosis (CF) is often exacerbated following acute upper respiratory tract infections caused by the human rhinovirus (HRV). Pathophysiology of these exacerbations is presently unclear and may involve deficient innate antiviral or exaggerated inflammatory responses in CF airway epithelial cells. Furthermore, responses of CF cells to HRV may be adversely affected by pre-exposure to virulence factors of Pseudomonas (P.) aeruginosa, the microorganism that frequently colonizes CF airways. Here we examined production of antiviral cytokine interferon-β and inflammatory chemokine interleukin-8, expression of the interferon-responsive antiviral gene 2’-5’-oligoadenylate synthetase 1 (OAS1), and intracellular virus RNA load in primary CF (delF508 CFTR) and healthy airway epithelial cells following inoculation with HRV16. Parallel cells were exposed to virulence factors of P. aeruginosa prior to and during HRV16 inoculation. CF cells exhibited production of interferon-β and interleukin-8, and expression of OAS1 at levels comparable to those in healthy cells, yet significantly higher HRV16 RNA load during early hours post-inoculation with HRV16. In line with this, HRV16 RNA load was higher in the CFBE41o- dF cell line overexpessing delF508 CFTR, compared with the isogenic control CFBE41o- WT (wild-type CFTR). Pre-exposure to virulence factors of P. aeruginosa did not affect OAS1 expression or HRV16 RNA load, but potentiated interleukin-8 production. In conclusion, CF cells demonstrate elevated HRV RNA load despite preserved interferon-β and OAS1 responses. High HRV load in CF airway epithelial cells appears to be due to deficiencies manifesting early during HRV infection, and may not be related to interferon-β.
Arterial transit time effects in pulsed arterial spin labeling CBF mapping: Insight from a PET and MR study in normal human subjects

Arterial transit time (ATT), a key parameter required to calculate absolute cerebral blood flow in arterial spin labeling (ASL), is subject to much uncertainty. In this study, ASL ATTs were estimated on a per‐voxel basis using data measured by both ASL and positron emission tomography in the same subjects. The mean ATT increased by 260 ± 20 (standard error of the mean) ms when the imaging slab shifted downwards by 54 mm, and increased from 630 ± 30 to 1220 ± 30 ms for the first slice, with an increase of 610 ± 20 ms over a four‐slice slab when the gap between the imaging and labeling slab increased from 20 to 74 mm. When the per‐slice ATTs were employed in ASL cerebral blood flow quantification and the in‐slice ATT variations ignored, regional cerebral blood flow could be significantly different from the positron emission tomography measures. ATT also decreased with focal activation by the same amount for both visual and motor tasks (∼80 ms). These results provide a quantitative relationship between ATT and the ASL imaging geometry and yield an assessment of the assumptions commonly used in ASL imaging. These findings should be considered in the interpretation of, and comparisons between, different ASL‐based cerebral blood flow studies. The results also provide spatially specific ATT data that may aid in optimizing the ASL imaging parameters. Magn Reson Med, 2010. © 2009 Wiley‐Liss, Inc.
Evidence for adjustable bandwidth orientation channels

The standard model of early vision claims that orientation and spatial frequency are encoded with multiple, quasi-independent channels that have fixed spatial frequency and orientation bandwidths. The standard model was developed using detection and discrimination data collected from experiments that used deterministic patterns such as Gabor patches and gratings used as stimuli. However, detection data from experiments using noise as a stimulus suggests that the visual system may use adjustable-bandwidth, rather than fixed-bandwidth, channels. In our previous work, we used classification images as a key piece of evidence against the hypothesis that pattern detection is based on the responses of channels with an adjustable spatial frequency bandwidth. Here we tested the hypothesis that channels with adjustable orientation bandwidths are used to detect two-dimensional, filtered noise targets that varied in orientation bandwidth and were presented in white noise. Consistent with our previous work that examined spatial frequency bandwidth, we found that detection thresholds were consistent with the hypothesis that observers sum information across a broad range of orientations nearly optimally: absolute efficiency for stimulus detection was 20–30% and approximately constant across a wide range of orientation bandwidths. Unlike what we found with spatial frequency bandwidth, the results of our classification image experiment were consistent with the hypothesis that the orientation bandwidth of internal filters were adjustable. Thus, for orientation summation, both detection thresholds and classification images support the adjustable channels hypothesis. Classification images also revealed hallmarks of inhibition or suppression from uninformative spatial frequencies and/or orientations. This work highlights the limitations of the standard model of summation for orientation. The standard model of orientation summation and tuning was chiefly developed with narrow-band stimuli that were not presented in noise, stimuli that are arguably less naturalistic than the variable bandwidth stimuli presented in noise used in our experiments. Finally, the disagreement between the results from our experiments on spatial frequency summation with the data presented in this paper suggests that orientation may be encoded more flexibly than spatial frequency channels.
Characteristics of exporting and non-exporting firms in Austria

In this study we provide detailed evidence on the importance and performance of exporters compared to non-exporters in Austrian manufacturing, based on firm level data. The results are in line with those found in other studies pointing towards the exceptional role of exporting firms with respect to various size and performance measures. We provide both descriptive as well as econometric evidence on these ‘export premia’ along these lines and further present a brief comparison with results found for other countries. Our findings however also suggest the existence of quite large differences across industries with respect to the export premia which deserves further attention.