Miracle-dz/UniFAR-FTUs huggingface dataset:
U-Pb geochronology and global context of the Charnian Supergroup, UK: constraints on the age of key Ediacaran fossil assemblages

U-Pb (zircon) ages for key stratigraphic volcanic horizons within the ∼3200-m-thick Ediacaran-age Charnian Supergroup provide an improved age model for the included Avalonian assemblage macrofossils and, hence, temporal constraints essential for intercomparisons of the Charnian fossils with other Ediacaran fossil assemblages globally. The Ives Head Formation (Blackbrook Group), the oldest exposed part of the volcaniclastic Charnian Supergroup of the late Neoproterozoic Avalonian volcanic arc system of southern Britain, contains a bedding plane with an impoverished assemblage of ivesheadiomorphs that is constrained to between ca. 611 Ma and 569.1 ± 0.9 Ma (total uncertainty). Higher-diversity biotas, including the holotypes of Charnia, Charniodiscus, and Bradgatia, occupy the upper part of the volcaniclastic succession (Maplewell Group) and are dated at 561.9 ± 0.9 Ma (total uncertainty) and younger by zircons interpreted as coeval with eruption and deposition of the Park Breccia, Bradgate Formation. An ashy volcanic-pebble conglomerate in the Hanging Rocks Formation at the very top of the supergroup yielded two U-Pb zircon populations: an older detrital one at ca. 604 Ma, and a younger population at ca. 557 Ma, which is interpreted as the approximate depositional age. The temporal association of the fossiliferous Charnian Supergroup with comparable fossiliferous deep-water successions in Newfoundland, and the probable temporal overlap of the youngest Charnwood macrofossils with those from different paleoenvironmental settings, such as the Ediacaran White Sea macrofossils, indicate a primary role for ecological sensitivity in determining the composition of these late Neoproterozoic communities.
Natakalim improves post-infarction left ventricular remodeling by restoring the coordinated balance between endothelial function and cardiac hypertrophy

Endothelial dysfunction can lead to congestive heart failure and the activation of endothelial ATP-sensitive potassium (KATP) channels may contribute to endothelial protection. Therefore, the present study was carried out to investigate the hypothesis that natakalim, a novel KATP channel opener, ameliorates post-infarction left ventricular remodeling and failure by correcting endothelial dysfunction. The effects of myocardial infarction were assessed 8 weeks following left anterior descending coronary artery occlusion in male Wistar rats. Depressed blood pressure, cardiac dysfunction, evidence of left ventricular remodeling and congestive heart failure were observed in the rats with myocardial infarction. Treatment with natakalim at daily oral doses of 1, 3 or 9 mg/kg/day for 8 weeks prevented these changes. Natakalim also prevented the progression to cardiac failure, which was demonstrated by the increase in right ventricular weight/body weight (RVW/BW) and relative lung weight, signs of cardiac dysfunction, as well as the overexpression of atrial and brain natriuretic peptide mRNAs. Our results also demonstrated that natakalim enhanced the downregulation of endothelium-derived nitric oxide, attenuated the upregulation of inducible nitric oxide synthase-derived nitric oxide (NO), inhibited the upregulated endothelin system and corrected the imbalance between prostacyclin and thromboxane A2. Overall, our findings suggest that natakalim prevents post-infarction hypertrophy and cardiac failure by restoring the coordinated balance between endothelial function and cardiac hypertrophy.
Dental health care waste disposal among private dental practices in Bangalore City, India.

UNLABELLED Any waste generated consequent to health care activity including any from a home environment is health care waste. Dental practices generate large amounts of waste cotton, plastic, latex, glass and other materials much of which may be contaminated with body fluids. OBJECTIVE To assess the knowledge, attitude and behaviour of private dental practitioners on health care waste management in Bangalore City. METHODS A cross-sectional study of 432 private dental practitioners in Bangalore City using a self-administered questionnaire. RESULTS 389 dentists responded; 64.3% do not segregate waste before disposal and 47.6% hand over health care waste to street garbage collectors; 42.1% felt that there was a lack of waste management agency services and 16.9% felt that a lack of knowledge were the main hurdles. CONCLUSIONS Dentists need education regarding health care waste disposal methods to improve their knowledge. A large proportion of the dentists are not practising proper methods of health care waste disposal. The existence of legislation governing healthcare waste disposal is not sufficient alone to motivate many practitioners to comply with guidelines.
Recent Ground Movement and Seismic Activity in Campi Flegrei

This disclosure relates to foldable cartons wherein adjacent walls thereof are joined together by a folded web. In order that the carton may be retained in an erected condition, there has been provided a web lock which will lock the adjacent corners together in a rigid corner forming relation. The web lock includes a notch or opening in one of the walls adjacent the corner and a projection on the other of the walls extending into the notch and locking the walls against folding relative to one another.
Antigenic diversity in Haemophilus ducreyi as shown by western blot (immunoblot) analysis

The antigenic diversity within a panel of 63 Haemophilus ducreyi isolates was examined by Western blot (immunoblot) analysis with a pool of 238 well-characterized human antisera. When a serum pool adsorbed on a mixture of Haemophilus influenzae, H. parainfluenzae, and H. parahaemolyticus was used, the immunoprofiles suggested that prominent antigenic proteins involved in the human immune response have apparent molecular masses of 63, 42, 34 to 30, and 28.5 to 28 kDa. Preliminary subcellular localization revealed that these antigens are associated with the cellular membrane. Two subsets of antigens were discriminated by detergent extraction. There was no evidence that the antigen composition is altered by changing the growth conditions. With a serum pool adsorbed on the Haemophilus spp. mixture supplemented with Actinobacillus actinomycetemcomitans, Pasteurella ureae, Neisseria gonorrhoeae, and Escherichia coli, antigenic determinants more specific for H. ducreyi were identified. An immunodominant 28.5- to 28-kDa protein was expressed by all H. ducreyi isolates. In the range from 34 to 30 kDa, 56 isolates revealed a dominant protein with variable molecular mass. By using both proteins (28.5 to 28 kDa and 34 to 30 kDa) as immunotypic markers, seven different immunopatterns were identified. Antigenic diversity among isolates from different geographical origins as well as from a single area was observed.
Firm Investment Behavior and Collective Bargaining Strategy

Using survey data on labor union coverage at the firm level, this paper examines union-nonunion differences in investment activity among 706 U.S. companies during the 1970s. Consistent with a model of union rent seeking, firm-level collective bargaining is associated with significantly lower physical capital and R&D investment, even after controlling for firm and industry characteristics. Deleterious union effects on investment are considerable throughout the 1972–80 period, but they vary across industries. Without significant changes in collective bargaining power or strategies, diminished investment activity by unionized companies is likely to exacerbate the already considerable decline in U.S. union coverage
A NOTE ON THE IMPRIMATURA IN TWO OF DOSSO DOSSI'S PAINTINGS

AbstractThe imprimatura in two paintings by Dosso Dossi (Ferrarese, ca. 1490–1542) were examined using scanning electron microscopy coupled with energy dispersive x-ray spectrometry. An assemblage of mineral species was found and identified, among them pyrite, dolomite, micaceous minerals, gypsum, and quartz. A high proportion of lead white was also found. The results of the analysis suggest that clay was used in the imprimatura mixture. A search of the literature on painting technique of the time yielded little evidence about the use of clay in the imprimatura layer, although it is discussed in Vasari in the 16th century.
The effect of feed processing on ruminal parameters in intensively fattened lambs

The aim of the study was to assess the influence of three processing ways of the concentrate feed on ruminal dry matter degradability, ruminal pH and ruminal protozoa population. Pelleted concentrate feed was mechanically processed to a particle size of ø 5 mm (variant A), ground at ø 2 mm (variant B) or by replacing the 50% of ground corn grain with expanded corn with ø 2 mm particle size as in B (variant C). The trial was carried out alternately on three lambs during their 90-132 days of life fitted with ruminal fistula. Feed bags and ruminal fluid was collected through the ruminal cannula at 3, 6, 9, 12, and 24 hours of incubation. After 24 hours of incubation the intra-ruminal feed concentrate dry matter degradation was significantly higher in expanded concentrate compared to pelleted concentrate (80.81% vs. 70.48%, P0.049). The same parameter had an intermediary value of 77.85% for ground feed concentrate. Reducing pH value of the ruminal fluid from values of over 5.7 to an average of 5.3 resulted in reduction of the protozoa number per ml of ruminal fluid from 8.859 x 105 to 4.208 x 105. The lowest value for protozoa was obtained in variant A, 1.953 x 104 protozoa/ml ruminal fluid, at a pH of 5.10 (following 6 hours of fermentation). It was concluded that out of all the identified protozoa, the Entodinium sp. was the dominant genus, making up 98.20% to 100% of the ruminal protozoa.
Dynamic modeling of orographically induced precipitation

Local orography governs the triggering of cloud formation and the enhancement of processes such as condensation and hydrometeor nucleation and growth in mountainous regions. Intense, lengthy precipitation events are typical upwind of the topographic divide, with sharply decreasing magnitude and duration on the lee side. Differences in mean annual precipitation of several hundred percent between windward slopes of orographic barriers and adjacent valleys or lee side slopes are not unusual. Because much of the streamflow in areas such as the western United States is derived from mountainous areas that are remote and often poorly instrumented, modeling of orographic precipitation has important implications for water resources management. Models of orographically induced precipitation differ by their treatment of atmospheric dynamics and by the extent to which they rely on bulk parameterization of cloud and precipitation physics. Adiabatic ascent and a direct proportionality between precipitation efficiency and orographically magnified updrafts are the most frequent assumptions in orographic precipitation modeling. Space-time discretization (i.e., resolution) is a major issue because of the high spatial variability of orographic precipitation. For a specific storm, relative errors as large as 50 to 100% are common in the forecast/hindcast of precipitation intensity and can be even larger in the case of catastrophic storms. When monthly or seasonal timescales are used to evaluate model performance, the magnitude of such errors decreases dramatically, reaching values as low as 10 to 15%. Current research is focusing on the development of data assimilation techniques to incorporate radar and satellite observations, and on the development of aggregation and disaggregation methodologies to address the implications of modeling a multiscale problem at restricted spatial and temporal resolutions.
Eurographics/siggraph Symposium on Computer Animation (2003) Discrete Shells

In this paper we introduce a discrete shell model describing the behavior of thin flexible structures, such as hats, leaves, and aluminum cans, which are characterized by a curved undeformed configuration. Previously such models required complex continuum mechanics formulations and correspondingly complex algorithms. We show that a simple shell model can be derived geometrically for triangle meshes and implemented quickly by modifying a standard cloth simulator. Our technique convincingly simulates a variety of curved objects with materials ranging from paper to metal, as we demonstrate with several examples including a comparison of a real and simulated falling hat. 1. Introduction Thin shells are thin flexible structures with a high ratio of width to thickness (> 100). While their well-known counterparts , thin plates, relax to a flat shape when unstressed, thin shells are characterized by a curved undeformed configuration. Cloth, recently studied in the animation literature, may be modeled as a thin plate, since garments are typically constructed from flat textiles. In stark contrast, thin-walled objects which are naturally curved (e.g., leaves, fingernails), or put into that shape through plastic deformation (e.g., hats, cans, carton boxes, pans, car bodies, detergent bottles) are thin shells and cannot be modeled using plate formulations.
Quantitative assessment of chronic lung disease of infancy using computed tomography

The aims of this study were to determine whether infants and toddlers with chronic lung disease of infancy (CLDI) have smaller airways and lower lung density compared with full-term healthy controls. Multi-slice computed tomography (CT) chest scans were obtained at elevated lung volumes during a brief respiratory pause in sedated infants and toddlers; 38 CLDI were compared with 39 full-term controls. For CLDI subjects, gestational age at birth ranged from 25 to 29 weeks. Airway size was measured for the trachea and the next three to four generations into the right lower lobe; lung volumes and tissue density were also measured. The relationship between airway size and airway generation differed between the CLDI and full-term groups; the sizes of the first and second airway generations were larger in the shorter CLDI than in the shorter full-term subjects. The increased size in the airways in the CLDI subjects was associated with increasing mechanical ventilation time in the neonatal period. CLDI subjects had a greater heterogeneity of lung density compared with full-term subjects. Our results indicate that quantitative analysis of multi-slice CT scans at elevated volumes provides important insights into the pulmonary pathology of infants and toddlers with CLDI.
Tracking mesoscale convective systems in the Sahel: relation between cloud parameters and precipitation

Although mesoscale convective systems (MCSs) are the main source of precipitation in the semi‐arid Sahel region, the relationship between MCS characteristics and their generated precipitation remain unclear. However, a thorough understanding of this relation is essential to work towards a classification scheme for MCSs and eventually to improve quantitative precipitation estimates in which cloud parameters are used as proxy variables for the total or maximum intense rainfall from a system. Accordingly, this study aims to analyse the cloud parameters and rain variables distributions and their concurrence before quantifying the relationships between them. This is done using hourly EUMETSAT's Meteosat‐8 infrared (10.8 µm) images, 3‐hourly precipitation data from National Aeronautics and Space Administration (NASA)'s Tropical Rainfall Measuring Mission and an MCS tracking algorithm. The period of interest extends from 1 June till 22 September 2006 and the area of interest covers the Lake Chad region. Results indicate that MCSs in the Sahel region generally show a maximum cloud coverage around 57 000 km2, a life duration of 9 h, an embedded convective core during 6 h and precipitation peaks around 12.3 mm h−1. A recurrent sequence of cloud and rain variables is also noticed; maximum in cloud coverage is mostly preceded by a minimum in brightness temperature in the cold convective core and is followed by a peak in precipitation. Longer‐lived and larger MCSs as well as MCSs embedding very cold and long‐lived convective cores exhibit an increased likelihood to induce more intense precipitation. Focussing on the characteristics of the cold convective core rather than on the characteristics of the entire system appears to be more relevant to predict the precipitation as the former are better correlated with the generated precipitation and can be used as proxy parameter for estimations of maximum intense precipitation using two‐dimensional nonlinear regression models. Copyright © 2011 Royal Meteorological Society
Amniotic Fluid or Its Fatty Acids Produce Actions Similar to Diazepam on Lateral Septal Neurons Firing Rate

Human amniotic fluid (AF) contains eight fatty acids (FATs), and both produce anxiolytic-like effects in adult rats and appetitive responses in human newborns. The medial amygdala and lateral septal nucleus function are related to social behavior, but the action of AF or its FATs in this circuit is known. We obtained 267 single-unit extracellular recordings in Wistar rats treated with vehicle (1 mL, s.c.; n = 12), human AF (1 mL, s.c.; n = 12), a FAT mixture (1 mL, s.c.; n = 13), diazepam (1 mg/kg, i.p.; n = 11), and fluoxetine (1 mg/kg, p.o.; n = 12). Compared with the vehicle group, the spontaneous septal firing rate in the AF, FAT mixture, and diazepam groups was the lowest and in the fluoxetine group the highest. Cumulative peristimulus histograms indicated that the significant change in septal firing occurred only in the AF and FAT mixture groups and exclusively in those neurons that increased their firing rate during amygdala stimulation. We conclude that human AF and its FATs produce actions comparable to anxiolytic drugs and are able to modify the responsivity of a circuit involved in social behavior, suggesting facilitation of social recognition processes by maternal-fetal fluids.
Is Color an Intrinsic Property of Object Representation?

The role of color in object representation was examined by using a variation of the Stroop paradigm in which observers named the displayed colors of objects or words. In experiment 1, colors of color-diagnostic objects were manipulated to be either typical or atypical of the object (eg a yellow banana versus a purple banana). A Stroop-like effect was obtained, with faster color-naming times for the typical as compared to the atypical condition. In experiment 2, naming colors on words specifying these same color-diagnostic objects reversed this pattern, with the typical condition producing longer response times than the atypical condition. In experiment 3, a blocked condition design that used the same words and colors as experiment 2 produced the standard Stroop-like facilitation for the typical condition. These results indicate that color is an intrinsic property of an object's representation at multiple levels. In experiment 4, we examined the specific level(s) at which color–shape associations arise by following the tasks used in experiments 1 and 2 with a lexical-decision task in which some items were conceptually related to items shown during color naming (eg banana/monkey). Priming for these associates was observed following color naming of words, but not pictures, providing further evidence that the color–shape associations responsible for the differing effects obtained in experiments 1 and 2 are due to the automatic activation of color–shape associations at different levels of representation.
Union patterns and family structure in Guadeloupe and Martinique

The author investigates the relationship between union patterns and family structure in Guadeloupe and Martinique using data from a 1975-1976 survey of 2849 women aged 15-49. Differences between three types of unions are analyzed with respect to legitimacy and stability. The distribution of households according to current union status is studied. The roles of partner or husband and other family relationships in contributing to the household are examined (ANNOTATION)
Low level of adjustment latitude--a risk factor for sickness absence.

BACKGROUND The prerequisite for obtaining sickness benefit is reduced work ability for medical reasons in combination with work demands which cannot be adjusted accordingly. The aim of this study was to investigate if low levels of adjustment latitude, defined as the possibility to temporarily adjust work demands in case of ill health, influence sickness absence. METHODS A prospective cohort study of 1420 employees (47% participation, aged 19-68; 56% women) was conducted at six Swedish workplaces. Exposure to two general and nine specific types of adjustment latitude was ascertained at baseline. Outcome was defined as the first new employer-reported sick-leave spell during a follow-up of 3-12 months. Hazard ratios (HR) of sick leave, with 95% confidence intervals (CI), were estimated by Cox proportional hazards regression. RESULTS The incidence of sickness absence was 2.85/1000 person-days. The self-reported reasons for sick leave were mainly minor complaints such as colds, influenzas and headaches. Employees lacking adjustment latitude had an adjusted HR of sickness absence of 1.51 (95% CI 1.08-2.11). Among specific adjustment latitude types, those not having the possibility to work from home generated an HR of 1.86 (95% CI 1.31-2.64). The effects of lack of adjustment latitude were similar for men and women but seemed to vary between different occupations. CONCLUSION A low level of adjustment latitude at work is a risk factor for sickness absence.
Mesoscale flow variability and its impact on connectivity for the island of Hawai`i

Understanding population connectivity is a contemporary challenge in marine ecology. Connectivity results from a combination of biological traits and physical mechanisms, at different life stages. We focus on the transport of particles around an oceanic island, simulating transport at early life stages of marine organisms. We aim to investigate through case studies how mesoscale features influence particle transport, recruitment, and connectivity. We determine particle dispersion by using an individual‐based model and the flow fields derived from a regional implementation of an ocean circulation model. To understand the underlying physical processes of transport, we locate coherent structures in the flow field, identify recurrent physical features, and observe how particle transport is related to them. Our results show that the varying eddying flow increases connectivity among populations located on different sides of the island. Both the flow field and dispersal patterns are highly variable. In this scenario, eddy events influence transport in distinct ways, and the timing of release plays an important role in dispersal. Our results highlight the need for modeling studies to use hydrodynamical model flows that represent the scales of variability affecting transport and dispersion.