Miracle-dz/UniFAR-FTUs huggingface dataset:
INTERLOCKING RESONANCE PATTERNS IN GALAXY DISKS

We have developed a method for finding dynamical resonances in disk galaxies using the change in sense of the radial component of the in-plane velocity at a resonance radius. Using simulations we show that we would expect to find these changes at corotation radii with a weaker effect at the Lindblad resonances. The method works well with observations at high spectral and angular resolutions, and is suited to the analysis of two-dimensional velocity fields in Hα from Fabry–Perot spectroscopy. We find clear indications of resonance effects in the disk velocity fields of virtually all of the 104 galaxies. The number of resonance radii detected ranges from one to seven, with a median of four. The frequency curves Ω, Ω ± κ/2, Ω ± κ/4 against radius for all the galaxies led us to discover a pattern in over 70% of the sample: given two pattern speeds, say Ω1 and Ω2, the OLR of Ω1 coincides with the corotation of Ω2, and the inner 4:1 resonance of Ω2 coincides with the corotation of Ω1. Although the second coincidence has been predicted, a prediction of this double coincidence is not found in the literature. This pattern is found once in 42 of the galaxies, twice in a further 26, three times in 5, and even four times in 1 galaxy. We also compute the ratio of corotation radius to bar length where we have sufficient image quality, finding a mean value of 1.3, and a shallow increase toward later type galaxies.
Black Hole Interior from Loop Quantum Gravity

We calculate modifications to the Schwarzschild solution by using a semiclassical analysis of loop quantum black hole. We obtain a metric inside the event horizon that coincides with the Schwarzschild solution near the horizon but that is substantially different at the Planck scale. In particular, we obtain a bounce of the 𝑆2 sphere for a minimum value of the radius and that it is possible to have another event horizon close to the 𝑟=0 point.
eXPloriNg tHe relAtioNSHiP BetWeeN goVerNANce, PoWer oF coNtrol ANd orgANizAtioNAl coNFlict:

Conflict seems to be a phenomenon that is physiologically linked to Family Firms (FFs) (Sharma, 2004). Prior research has interpreted conflict as one of the main reasons weakening these organizations (Beckhard & Dyer, 1983; Dyer, 1986; Gersick et al., 1997). Under this respect, FFs are considered as fertile ground for misunderstanding and conflict among shareholders since divergent groups pursue competing goals (Sciascia & Mazzola, 2008). Much theoretical and empirical research, especially since the end of the 1960s, has revealed a strong discontinuity with respect to the basic assumptions of this view (e.g. Harvey & Evans, 1994; Sharma et al., 1997). The recent literature, in particular, tends to identify factors in the nature, type and level of conflict that can have a positive impact on performance at a group and/or organizational level (e.g. Cosier & Harvey, 1998; Kellermanns & Eddleston, 2002; Litz & Kleysen, 2001). Consistently with this perspective, in developing this paper, we assume that the conflict is not necessarily negative for the organisations (in general, and for family companies in particular) and that certain types of conflict can contribute to increase the level of creativity and innovation in the processes of sensemaking (Weick, 1999), decision-making and knowing (Astrachan & McMillan, 2003). The aim of this paper is to develop and test a theoretical model concerning the relations among some variables of organisational design and the type and nature of the conflict in FFs. The theoretical model is developed through a variety of hypotheses which were tested by means of a survey on 175 firms registered at Italian Association of Family Businesses (“Associazione Italiana delle Aziende Familiari” or “AIdAF” for short).
YouTube Videos and the Rip Current Hazard: Swimming in a Sea of (Mis)information

Rip currents are strong, narrow, offshore flows found on many global beaches and contribute to hundreds of drownings and tens of thousands of rescues each year. Yet despite long-standing educational efforts, public understanding of rip currents is poor. YouTube represents a new visual-based social media platform with the potential to educate a large and global audience about the rip current hazard. This study analyzed the content of 256 rip current–related YouTube videos with over 5 million total views as of March 2, 2015 finding that the accuracy of informa- tion disseminated about rip currents on YouTube is mixed and of varying quality. Existing videos are good at emphasizing correct rip current terminology, visual imagery, and a range of escape strategies, but greater emphasis in future videos must be placed on rip current avoidance, particularly through promoting the need to swim near lifeguards and how to spot rip currents.
REMOVAL OF CONGO RED DYE FROM AQUEOUS SOLUTION BY DATE PALM LEAF BASE

Removal of dyes from wastewater is important for industry and environmental protection. The adsorption technique, using biomass is attractive method for environmental and economical reasons. This study studies removal of Congo Red dye (CR) from aqueous solutions by adsorption using date palm Leaf Base (LB). The adsorption of congo red dye CR onto LB has been examined in aqueous solution by considering the influence of temperature up to 60°C and pH on the percentage removal of CR. The results showed that the percentage removal of CR increased with increasing temperature and decreased with increasing pH. The Langmuir and Freundlich models have been applied to describe the equilibrium data and the thermodynamic parameters, Gibbs free energy ΔG°, enthalpy change ΔH° and entropy ΔS°, have been determined. The negative value of ΔH suggests that adsorption of CR by the date palm leaf base is exothermic. The positive values of ΔG° at all studied temperatures indicate that CR adsorption is a unspontaneous process. LB is a promising adsorbent for the removal of CR from aqueous solution over a range of concentrations.
Tidal Disruption of a Main-sequence Star by an Intermediate-mass Black Hole: A Bright Decade

There has been suggestive evidence of intermediate-mass black holes (IMBHs; 103−5 M⊙) existing in some globular clusters (GCs) and dwarf galaxies, but IMBHs as a population remain elusive. As a main-sequence star passes too close by an IMBH it might be tidally captured and disrupted. We study the long-term accretion and observational consequence of such tidal disruption events. The disruption radius is hundreds to thousands of the BH’s Schwarzschild radius, so the circularization of the falling-back debris stream is very inefficient due to weak general relativity effects. Due to this and a high mass fallback rate, the bound debris initially goes through a ∼10 yr long super-Eddington accretion phase. The photospheric emission of the outflow ejected during this phase dominates the observable radiation and peaks in the UV/optical bands with a luminosity of . After the accretion rate drops below the Eddington rate, the bolometric luminosity follows the conventional t−5/3 power-law decay, and X-rays from the inner accretion disk start to be seen. Modeling the newly reported IMBH tidal disruption event candidate 3XMM J2150-0551, we find a general consistency between the data and predictions. The search for these luminous, long-term events in GCs and nearby dwarf galaxies could unveil the IMBH population.
Real-world comparison of the effectiveness and safety of different bowel preparation agents

Background and aims Proper bowel cleansing is necessary prior to colonoscopy, but poor tolerability to bowel preparation agents may increase the odds of poor cleansing and incomplete screenings. The aim of this study was to evaluate the real-world effectiveness and safety of bowel preparation agents. Methods Claims data were extracted for individuals who had a screening colonoscopy from July 1, 2012, to June 30, 2015, were ≥18 years of age, and who could be observed ≥6 months before and ≥3 months after the screening. Data were stratified by agent class, including over-the-counter (OTC), low-volume (LV), and high-volume (HV) agents. Rates of incomplete screenings, repeat screenings, and hospitalizations were reported. Multivariate logistic regression was conducted to compare outcomes for sodium picosulfate, magnesium oxide, and citric acid (P/MC) vs other agents. Results Of 2.8 million individuals, 71.5% were average risk and 28.5% were high risk for colorectal cancer. Rates of use were 2.8% for P/MC, 30.1% for other LV agents, 9.4% for HV agents, and 56.6% for OTC agents. All individuals who used P/MC had significantly lower odds of incomplete screenings compared to those who used other LV agents or HV agents (P<0.05). In average-risk patients, rates of 30- and 90-day repeat screenings were highest for the P/MC group (16.7% and 23.0%, respectively) compared to other agents. Across all patient analysis groups, the rates of hospitalizations for hyponatremia or dehydration were much higher for those who used an OTC bowel preparation agent compared to those who used LV or HV agents, or P/MC. Conclusion P/MC was associated with lower rates of incomplete colonoscopy and higher rates of repeat screenings, suggesting it was better tolerated than other agents. OTC agents were associated with higher rates of hospitalizations.
Managerial Coaching Behaviours and Their Relations to Job Satisfaction, Life Satisfaction and Orientations to Happiness

This paper aims to explore managerial coaching behaviours and their relations to job satisfaction, life satisfaction and orientations to happiness. Chinese Managerial Coaching Behaviours Inventory, Chinese translation of the Orientations to Happiness Scale, General Job Satisfaction Scale and General Life Satisfaction Scale were administered to 145 managers from two factories, one hospital, China Mobile and China Telecom. Results indicate that: Unexpectedly, managerial coaching behaviours are not associated with job satisfaction and life satisfaction. Pleasure of life in Orientations to Happinessis significantly associated with assessing and challenging dimensions of Managerial Coaching Behaviours Inventory. Both job satisfaction and life satisfaction are significantly positively related with all the three dimensions in Orientations to Happiness. Females show more supporting behaviours than males. Compared with the first-line managers and technicians with titles, the middle and senior managers show more challenging and supporting behaviours. Compared with the factory managers, managers in hospitals, China Mobile and China Telecom show more challenging and supporting behaviours. Pleasure of life was positively related to assessing and challenging behaviours.
Revisiting Who, When, and Why Stakeholders Matter: Trust and Stakeholder Connectedness

With limited resources and attention, managers have sought ways to categorize and prioritize stakeholders. The underlying assumption is that some stakeholders matter more than others. However, in the information age, stakeholders are increasingly interconnected, where a firm’s actions toward one stakeholder are visible to others and can affect members of the stakeholder ecosystem. Actions by a firm toward any of its stakeholders can signal its trustworthiness and determine to what degree other stakeholders will assume vulnerability and engage in future exchange relationships. In this conceptual article, I present a model of stakeholder connectedness and describe the conditions in which a firm’s actions toward one stakeholder can build or erode trust across stakeholders. This work contributes to current tensions in stakeholder theory by elucidating how the treatment of a single stakeholder, or a narrow group of stakeholders, can have cascading effects on a broader group of stakeholders.
Three‐dimensional architecture of the Nankai accretionary prism's imbricate thrust zone off Cape Muroto, Japan: Prism reconstruction via en echelon thrust propagation

[1] A 9 km wide, 92 km long, three-dimensional (3-D) seismic reflection volume acquired off Shikoku Island, Japan, images the seaward portion of the subduction of the Philippine Sea plate at the Nankai Trough and Nankai accretionary prism. Detailed interpretation of the imbricate thrust and protothrust zones, the portions of the prism between the deformation front and the first out-of-sequence thrust, shows a high degree of variability in the thrust faults that all parallel the frontal thrust but are arranged in en echelon patterns along strike and frequently include complications such as piggyback faults and fault splays. Interestingly, the sinuous seafloor morphology of the prism does not accurately reflect the en echelon 3-D architecture of the primary prism thrusts. Seafloor morphology appears to average across several thrusts along strike and is further modified by near-surface thrust splays and backthrusts, suggesting that care must be taken in interpreting seafloor relief in terms of lateral continuity or thrust fault geometry. Subduction of the Kinan seamounts 20 km northeast of the center of the Muroto 3-D volume generated a scallop-shaped embayment in the prism; the rebuilding process appears to influence the northeastern portion of the 3-D volume where a ∼625 m landward step in the position of the frontal thrust and numerous changes in prism architecture are observed. These observations imply that accretionary prisms may reattain equilibrium following seamount subduction by lateral en echelon fault propagation into damaged zones that facilitate an increase accretion rate until a laterally continuous deformation front is reestablished.
Comparison of Reproduction Characteristics and Broodstock Mortality in Farmed and Wild Eurasian Perch (Perca fluviatilis L.) Females During Spawning Season Under Controlled Conditions

Reproduction characteristics and broodstock mortality were compared in farmed perch (FP) and wild perch (WP) under controlled conditions. Thirty-six farmed females (FF) (92.3%) and 30 wild females (WF) (76.9%) spawned during the reproductive season. Absolute fecundity in FF was 18 660±6 809 eggs per female compared to 31,081±3,276 eggs per female in WF. Similar differences were observed in relative fecundity (FF 112,470±13,370 eggs per kg body weight and WF 137,054±18,513 eggs per kg body weight). No significant differences in fertilization rate (FR), larval resistance (LR) and larval total length (LTL) were found (FR 91.9±6.9% and 90.5±6%; LR 51.1±25.2% and 53.5±26.2%; LTL 5.88±0.55 mm and 5.82±0.51 mm in FP and WP, respectively). The highest differences were found in hatching rates of 27.9±9.3% in FP and 62.0±16.0% in WP. No mortalities were observed during the reproductive season, but post-spawning mortality among WP was 92.5±2.5% of females compared with 21.5±12.5% in FP.
Evaluating the role of firm-specific capital in new Keynesian models

In this paper I make use of Bayesian methods to estimate a firm-specific capital DSGE model with Calvo price and wage setting. This approach allows me to firmly conclude that firm-specific capital is highly relevant in improving the fit of New Keynesian models to the data as shown by a large increase in the value of the log marginal data density relative to the more conventional rental capital model. The introduction of firm-specific capital also has important implications for business cycle dynamics leading to increased persistence of aggregate variables and helps reduce the discrepancy between macro estimates of the NKPC and the observed frequent price adjustments in the micro data.
Prediction of cross polarization discrimination at millimeter wave band due to dust storms

Microwave links performance during dust storms has received considerable interest in recent time with emphasis on signal attenuation. However, phase shift and cross polarization have not been tackled enough. This paper investigates the cross polarization discrimination (XPD) induced by dust storms at millimetre wave band. It introduces simple models of wave propagation through dust storms. The models are developed based on the forward scattering amplitude of dust particles using Rayleigh method. Three conditions are set to validate the suitability of the Rayleigh approximation for the model. It is shown that the method is valid for determining the scattering of ellipsoidal dust particles for the particle sizes and frequency range considered. The scattering coefficients are derived and mathematical models for phase shift and attenuation are proposed in terms of relative permittivity and visibility. Results of the proposed model compared with some published results show close agreement. Differential phase shift and attenuation are computed and XPD introduced by dust storms in such links are predicted using the model parameters as inputs. Attenuation in dry dust is only significant when the visibility becomes severe. XPD at such visibility also becomes significant i.e. numerically low. A similar trend is found as the frequency increases.
Molecular gas and nuclear activity in early-type galaxies: any link with radio-loudness?

Aims. We want to study the amount of molecular gas in a sample of nearby early-type galaxies (ETGs) which host low-luminosity Active Galactic Nuclei (AGN). We look for possible differences between the radio-loud (RL) and radio-quiet (RQ) AGN. Methods. We observed the CO(1-0) and CO(2-1) spectral lines with the IRAM 30m and NRO 45m telescopes for eight galaxies. They belong to a large sample of 37 local ETGs which host both RQ and RL AGN. We gather data from the literature for the entire sample. Results. We report the new detection of CO(1-0) emission in four galaxies (UGC0968, UGC5617, UGC6946, and UGC8355) and CO(2-1) emission in two of them (UGC0968 and UGC5617). The CO(2-1)/CO(1-0) ratio in these sources is $\sim0.7\pm0.2$. Considering both the new observations and the literature, the detection rate of CO in our sample is 55 $\pm$ 9%, with no statistically significant difference between the hosts of RL and RQ AGNs. For all the detected galaxies we converted the CO luminosities into the molecular masses, $M_{H_2}$, that range from 10$^{6.5}$ to 10$^{8.5}$ M$_{\odot}$, without any statistically significant differences between RL and RQ galaxies. This suggests that the amount of molecular gas does not likely set the radio-loudness of the AGN. Furthermore, despite the low statistical significance, the presence of a weak trend between the H$_{2}$ mass with various tracers of nuclear activity (mainly [O III] emission line nuclear power) cannot be excluded.
Statistical–dynamical seasonal forecast of western North Pacific and East Asia landfalling tropical cyclones using the GFDL FLOR coupled climate model

AbstractThis study attempts to improve the prediction of western North Pacific (WNP) and East Asia (EA) landfalling tropical cyclones (TCs) using modes of large-scale climate variability [e.g., the Pacific meridional mode (PMM), the Atlantic meridional mode (AMM), and North Atlantic sea surface temperature anomalies (NASST)] as predictors in a hybrid statistical–dynamical scheme, based on dynamical model forecasts with the GFDL Forecast-Oriented Low Ocean Resolution version of CM2.5 with flux adjustments (FLOR-FA). Overall, the predictive skill of the hybrid model for the WNP TC frequency increases from lead month 5 (initialized in January) to lead month 0 (initialized in June) in terms of correlation coefficient and root-mean-square error (RMSE). The hybrid model outperforms FLOR-FA in predicting WNP TC frequency for all lead months. The predictive skill of the hybrid model improves as the forecast lead time decreases, with values of the correlation coefficient increasing from 0.56 for forecasts initiali.
Rejection of common cuckoo Cuculus canorus eggs in relation to female age in the bluethroat Luscinia svecica

The evolutionary equilibrium hypothesis explains the existence of both acceptors and rejecters of brood parasite eggs within a host population as resulting from a balance between the costs of acceptance and the costs of recognition errors. In such equilibria conditional responses may play an important role. One such response that has been demonstrated in one common cuckoo Cuculus canorus host species is that first year, naive breeders accept parasitic eggs at a higher frequency than older and more experienced birds do. In the present study we tested whether this is the response in the bluethroat Luscinia svecica. We did not find any difference in rejection behaviour between first-year breeders and older birds. This finding is discussed in relation to recognition costs, cuckoo egg mimicry and the bluethroat's present status as a host. We conclude that the results are best explained by the evolutionary lag hypothesis.
Some biological aspects of spawning migratory Labeobarbus species in some tributary rivers of Lake Tana, Ethiopia

Some biological aspect of spawning migratory Labeobarbus species in small tributary rivers of Lake Tajjna (Qimon, Guanta, Shini and Chibirna) Rivers were studied starting from August 2013 to December 2013. Fish were collected bimonthly using 6 and 8 cm monofilament gillnets and 6, 8, 10 and 12 cm mesh size poly filament gillnets. A total of 933 adult Labeobarbus specimens were collected within five sampling months at all sampling rivers. Descriptive statistics was used to present the data. One way ANOVA was used to analyze the Fulton condition factor of fishes. Length–weight relationship of the dominant Labeobarbus species (L. intermedius, L. brevicephalus and L. nedgia) showed statistically significant curvilinear relationships. Fulton condition factor for L. brevicephalus showed significant difference among four rivers (P<0.05) and L. intermedius showed non-significant difference. Fulton’s condition factor of L. intermedius showed significant difference between sexes (P<0.001) and time of spawning (P<0.01). The present findings showed that the unique Lake Tana Labeobarbus species flock reproductive and productive performance were determined by development activities that are taken from each tributary rivers and streams like sand mining and irrigation activities. Finally this crucial problem should be taken appropriate mitigation measures in order to create sustainable development.
The Giant Gemini GMOS survey of zem > 4.4 quasars – I. Measuring the mean free path across cosmic time

We have obtained spectra of 163 quasars at zem > 4.4 with the Gemini Multi Object Spectrometers, the largest publicly available sample of high-quality, low-resolution spectra at these redshifts. From this data set, we generated stacked quasar spectra in three redshift intervals at z ∼ 5 to model the average rest-frame Lyman continuum flux and to assess the mean free path λ 912 of the intergalactic medium to H I-ionizing radiation. At mean redshifts zq =(4.56, 4.86, 5.16), we measure λ 912 = (22.2 ± 2.3,15.1 ± 1.8,10.3 ± 1.6) h −1 proper Mpc with uncertainties dominated by sample variance. Combining our results with measurements from lower redshifts, the data are well modelled by a power law λ 912 = A[(1 + z) /5] η with A = (37 ± 2) h −1 Mpc and η =− 5.4 ± 0.4 at 2.3 <z< 5.5. This rapid evolution requires a physical mechanism – beyond cosmological expansion – which reduces the effective Lyman limit opacity. We speculate that the majority of H I Lyman limit opacity manifests in gas outside galactic dark matter haloes, tracing large-scale structures (e.g. filaments) whose average density and neutral fraction decreases with cosmic time. Our measurements of the mean free path shortly after H I reionization serve as a valuable boundary condition for numerical models thereof. Our measured λ 912 ≈ 10 Mpc at z =5.2 confirms that the intergalactic