Miracle-dz/UniFAR-FTUs huggingface dataset:
Observations on Flatworms and Nemerteans Collected at Beaufort, N. C

During the summer of 1946, from May 23 to August 27, I studied tlie consortes of marine animals collected at Beaufort, N. C. This paper discusses the findings for turbellarians, trematodes, and nemerteans. The cestodes and nematodes will be worked up and presented later; those that deal with parasitic crustaceans have already been published (Pearse, 1947). Three turbellarians, 32 trematodes, and 2 nemerteans that were found on or in marine animals at Beaufort, N. C, are here listed, and eight new species of trematodes and one new genus are described. The species of hosts that were found to be infested with parasites were 1 king crab, 3 decapod crustaceans, 2 clams, 1 turtle, and 28 fishes. Twenty-two species of fishes harbored one species of trematode, five had two, and one had three. Thanks are due to L. B. Hayes, David Busby, and Glen E. Mathisen, who helped with routine examinations. All animals were dissected and studied under a binocular microscope. Any consortes found were preserved and mounted in dammar. Dr. E. W. Price looked over the manuscript of this paper and made many constructive suggestions in regard to the Monogenea. My heart}' thanks are tendered to him.
Knowledge Management in Libraries and Information Centers: A Bibliometric Perspective

The purpose of this paper is to provide a bibliometric perspective of Knowledge Management (KM) literature in libraries for the past 21 years (1998-2019), based on Web of Science core collection bibliographical database. The objectives of the paper are to examine a bibliometric profile of publications in the field of KM in libraries and analyze the emerging research trends in KM research in libraries and information centers through Keyword co-occurrence. This study used bibliometric and citation analysis methods to explore the profile and research trends in knowledge management research in libraries. A total of 83 sources were retrieved via Web of Science’s core collection database using the terms “Knowledge Management, Libraries, Information centers, librarians, information professionals”. Data was analyzed through Web of Science’s Clarivate Analytics, then exported to Microsoft Excel and VOSviewer for production of images and graphs. Findings revealed that the most research outputs were produced in year 2018 mostly in article forms and the University of South Africa led in contribution to knowledge management research in libraries. Findings also determined top 10 prolific authors and publishing sources; most research were produced by United States, followed by South Africa. As most KM research is carried out on perceptions, predictions and benefits of KM in libraries and information centers not on KM practice in libraries and its impact on the quality of library services. This has implication on KM practice in libraries and information centers. Practicing librarians are unable to apply KM emulating success stories and best practices of libraries and information centers. Bibliometric studies on KM are too general, and to the best knowledge of the researcher, none of them so far gives a clear view of research trends of KM in libraries. Hence, this might be the first study to fill this gap, which only analyzed a sample of documents which are more relevant to the scope of the study.
Regression Model and Neural Network Applied to the Public Spending Execution

Artificial Neural Networks are connectionist systems formed by numerous process units called neurons connected to each other, which adapt their structure through learning techniques to solve problems of function approximation and pattern classification. They process information that is supplied to them, either to obtain relationships between them and the objective function that is intended to be approximated, or by classifying these data into different categories. Regression analysis aims to determine the type of functional relationship that exists between a dependent variable and one or more independent variables. The purpose of the research is to use regression methods (multiple regression) and artificial neural networks (multilayer perceptron) to determine the influence of spending execution on the regional government's public budget. 95% of the variability of the budget of Moquegua region has been determined and explained by the three sectors (primary, secondary and tertiary) and 5% is determined by other factors outside the regional government budget. The determination coefficients R2 = 95.9% in the regression model and R2 = 95.3% in the neural network (multilayer perceptron). It has been demonstrated that Artificial neural networks and regression models have obtained very similar results, achieving good and good-fit models.
New insights into Southern Caucasian glacial–interglacial climate conditions inferred from Quaternary gastropod fauna

In the present study, we performed gastropod analyses on loess–palaeosol sequences from northeast Armenia (Southern Caucasia) covering at least three glacial–interglacial cycles. The elaborated ecostratigraphy shows significant patterns of species composition related to the succession of pedocomplexes and loess, respectively. Pedocomplexes included species that can be associated with high‐grass to forest‐steppe biomes, indicating increased humidity for these sections compared to the loess layers. In contrast, loess layers that relate to glacial periods are associated with gastropod species of semidesert environments with shrub‐ and shortgrass‐steppes, indicating semiarid to arid conditions. Furthermore, the loess deposits do not show any evidence for cold‐adapted gastropod species. Therefore, we suggest that average July temperatures in the study area were above 10 °C, even during periods of loess deposition. Consequently, we propose that the limiting factor for tree growth during glacial periods was aridity, rather than temperature. In addition, we observe environmental differences between the various glacial times, with our results indicating a trend towards steadily increasing aridity in Southern Caucasia across the Middle to Late Pleistocene.
Perfil da fauna de himenópteros parasitóides (Insecta, Hymenoptera) em uma área de Mata Atlântica do Parque Estadual da Fonte Grande, Vitória, ES, Brasil

Survey of the hymenopterous parasitoids (Insecta, Hymenoptera) from the Parque Estadual da Fonte Grande, Vitoria, ES, Brazil. Parasitoids Hymenoptera were collected in a trail inside the Parque Estadual da Fonte Grande (20o17'51.7''S; 40o20'13.1''W), located in an area of the Atlantic Forest, during the period of June 2000 to July 2001. A total of 4,595 specimens, belonging to 28 families, have been collected. Braconidae, Eulophidae, and Scelionidae, were the most common families, with relative abundance of 22.5%, 14.32%, and 13.12%, respectively. Sixteen families showed the relative frequency lower than 1%. A preliminary list with 47 genera of some of the families is included.
The effects of secondary processing in the unique carbonaceous chondrite Miller Range 07687

Our detailed mineralogical, elemental, and isotopic study of the Miller Range (MIL) 07687 meteorite showed that, although this meteorite has affinities to CO chondrites, it also exhibits sufficient differences to warrant classification as an ungrouped carbonaceous chondrite. The most notable feature of MIL 07687 is the presence of two distinct matrix lithologies that result from highly localized aqueous alteration. One of these lithologies is Fe‐rich and exhibits evidence for interaction with water, including the presence of fibrous (dendritic) ferrihydrite. The other lithology, which is Fe‐poor, appears to represent relatively unaltered protolith material. MIL 07687 has presolar grain abundances consistent with those observed in other modestly altered carbonaceous chondrites: the overall abundance of O‐rich presolar grains is 137 ± 3 ppm and the overall abundance of SiC grains is 71 ± 11 ppm. However, there is a large difference in the observed O‐rich and SiC grain number densities between altered and unaltered areas, reflecting partial destruction of presolar grains (both O‐ and C‐rich grains) due to the aqueous alteration experienced by MIL 07687 under highly oxidizing conditions. Detailed coordinated NanoSIMS‐TEM analysis of a large hotspot composed of an isotopically normal core surrounded by a rim composed of 17O‐rich grains is consistent with either original condensation of the core and surrounding grains in the same parent AGB star, or with grain accretion in the ISM or solar nebula.
Avaliação da persistência na lactação da raça Guzerá, utilizando modelos de regressão aleatória

The heritability and the genetic and permanent environment correlations were estimated among six different measures of persistency in the lactation of Guzerat cow, using the Random Regression Model. A total of 8,403 records from 1,034 first lactation cows were evaluated. The Random Regression Model was calculated by the logarithmic function of Ali and Schaeffer and Legendre polynomials to get coefficients for fixed, additive genetic and permanent environment effects. Ali and Schaeffer was the function that better fit to the data, but it had convergence problems. The results showed that persistence is a trait with moderate heritability, and low correlation with genetic value for 305-d milk production which allows to select animals in order to alter the format of the curve of production without affecting the total productivity. The measure of persistence that calculates the difference of milk production between the medium and initial phases was highly correlated with 305-d milk production.
Figs (Ficus, Moraceae) in Urban Hong Kong, South China 1

Hong Kong (22°N) is on the northern margins of the Asian tropics and has a native fig flora of 24 species. A total of 3.4 km2 of the urban area on Hong Kong Island was surveyed for spontaneous and planted fig plants of reproductive size. The 1124 individuals included 14 species in four subgenera: seven native species (F. fistulosa, F. hirta, F. hispida, F. microcarpa, F. pumila, F. subpisocarpa, and F. variegata), four of which were sometimes planted, one probably native (F. virens), one naturalizing species (F. religiosa), and five exotic species that occurred only in cultivation, two of which (F. altissima, F. rumphii) are pollinated and produce viable seeds. The native species in the two most common subgenera form distinct ecological guilds: those in subgenus Sycomorus bear large, many‐seeded, green or yellow figs and are bat‐dispersed pioneers on exposed soil; those in subgenus Urostigma bear small, few‐seeded, dark‐purple figs and are largely bird‐dispersed and epilithic. The density of potentially fruiting fig plants in the study area (2.3/ha) was within the range reported for tropical forests and between them they were visited by the entire urban frugivore fauna. This study shows the importance of the urban fig flora to urban wildlife and also highlights the risk of cultivated Ficus species becoming invasive, despite their obligate species‐specific pollinator mutualisms.
Natural spread of Cryphonectria parasitica and persistence of hypovirulence in three Italian coppiced chestnut stands

Summary Three coppiced chestnut stands near Florence (Tuscany, Italy) were monitored for 15 years. Presence of blight, damage, evaluation of different types of cankers and their relationship with stand structure were assessed. Disease incidence ranged from 67% to 99% of infected shoots, and mortality caused by blight was between 6% and 12%. Canker types were defined in the study sites; healing and healed cankers represented 70–88% of the total infections recorded, whereas normal cankers represented 9–12.5%. In general, more than one infection was detected for each shoot, and on some trunks up to nine cankers were observed. During the entire investigation period, a constant trend of hypovirulence spread was observed that was symptomatic of a substantial stability of the phenomenon: most (63.5%) undifferentiated new infections evolved into healing and healed cankers, compared with 6.5% that developed into normal infections. Isolations confirmed that a mixed inoculum (normal, intermediate and white strains) of the pathogen was spreading in the coppices. Inocula produced by pycnidia from healing cankers were examined and tested in an artificial inoculation trial. dsRNA was detected in white strains isolated from healing cankers. In this natural condition and in the complete absence of silvicultural treatments, this inoculum seems capable of ensuring both the spread of hypovirulence and its persistence over the years. Data suggest that hypovirulence and its spread are complex phenomena based on the interaction between fungal inoculum, host resistance and site conditions.
Taxonomy of Bacillus circulans Jordan 1890: Base Composition and Reassociation of Deoxyribonucleic Acid

The guanine-plus-cytosine (G+C) contents of 123 strains previously identified as Bacillus circulans Jordan 1890 were determined. Of the strains examined, only 18 had G+C contents of 37 to 41 mol%, a range that included the G+C content (38.1 mol%) of the type strain. A major portion of the strain (93 strains) had G+C contents in the range from 46 to 55 mol%. For seven strains the G+C contents ranged from 42 to 45 mol%, and for another small group of five strains the G+C contents ranged from 56 to 61 mol%. Deoxyribonucleic acid reassociation studies revealed that 10 of the 18 strains with G+C contents of 37 to 41 mol% were closedly related genetically to each other and to the type strain. This genetically related group was phenotypically quite homogeneous. Our results strongly suggested that most of the strains were misclassified as B. circulans. Consequently, the phenotypic heterogeneity of the species B. circulans Jordan 1890 was not due to inherent variability of genetically related strains, but to variability introduced by inclusion of genetically unrelated organisms.
What Drives Symptom Reduction in Attention Bias Modification Treatment? A Randomized Controlled Experiment in Clinically Anxious Youths

Attention-bias modification (ABM) is a novel treatment for anxiety disorders. We tested the contribution of two possible factors implicated in ABM’s efficacy: training of threat-related selective spatial attention and exposure to threat. We also measured general attention control to examine its potential role in treatment effects. A four-arm randomized controlled design was used, which dissociated spatial attention and threat exposure while equating treatment expectancies. One hundred clinically anxious youths were randomized and assessed at pretreatment, midtreatment, posttreatment, and 3-month follow-up. All four groups manifested large reductions in anxiety symptoms; there were no significant between-group differences. Level of change in anxiety symptoms significantly correlated with level of change in youths’ self-rated attention control. Findings did not support the role of either dissociated spatial attention or threat exposure as underlying mechanisms. Implications of the findings are discussed including possible roles of expectations and general attention control in ABM efficacy.
Ownership Concentration and Corporate Performance of Brazilian Firms before and after Initial Public Offerings

Objective : To evaluate the influence of ownership concentration on variation in corporate performance before and after initial public offerings (IPO) in firms launched on B3. Methods : Economic and financial information was obtained from the reference forms of 55 firms. Variation in performance was proxied by ROA and ROE two years before vs. two years after IPO. Ownership concentration was proxied by the proportion of shares with voting rights belonging to the single-largest, two largest, three largest, four largest or five largest shareholders. Originality/relevance : In addition to contributing to the literature, this is the first Brazilian study on the topic to analyze variation in performance before and after IPO, in light of the potential impact of IPO on firms. Results : Our results suggest that performance proxied by mean ROA and ROE tends to decrease in the post-IPO period.However, in our sample, ownership concentration did not significantly influence variation in corporate performance before and after IPO. Theoretical/methodological contribution : Based on our sample and the control variables used in the proposed econometric model, the presence of large controlling shareholders at the time IPO does not seem to influence the level of corporate performance following IPO, suggesting other factors are responsible for the observed behavior.
Consumer Return Policies in Omnichannel Operations

We study the pricing and return policy decisions of an omnichannel retailer serving customers who differ in how they realize their uncertain valuation for a product—by inspecting in store before purchase or by purchasing online and possibly returning misfit products. Customers may return misfit products either to stores for a full refund or online as per the firm’s return policy. We model prices to be identical across channels, allow crosschannel returns, and endogenize customers’ purchase and return decisions, capturing typical features of an omnichannel setting. Our analysis helps explain why some omnichannel firms choose full refunds, whereas others charge a fee for online returns. We find that omnichannel firms with good salvage partners for online returns (e.g., Nordstrom) as well as those with more store-based customers (e.g., Macy’s) should offer full refunds. Similarly, firms are incentivized to offer full refunds for products that customers are more likely to inspect in store (e.g., Express for footwear). In contrast, firms with a significant store network and better in-store salvage opportunities (e.g., J.C. Penney) might be better off charging a fee for online returns in order to nudge customers to return in store. Finally, an omnichannel firm should be cautious both in making the return process more convenient and in improving accessibility to its stores, because these seemingly beneficial policies, if combined with a partial-refund policy, could undermine the firm’s overall profit. This paper was accepted by Vishal Gaur, operations management.
Artificial refuges to combat habitat loss for an endangered marsupial predator: How do they measure up?

One technique used to combat the growing global species extinction crisis has been to create artificial refuges—human‐made replacements for natural refuges destroyed during habitat modification. However, there is limited knowledge of how closely artificial refuges replicate the natural refuges they seek to replace. Mining threatens many species worldwide through large‐scale habitat modification, and artificial refuges have been proposed as a method to offset the resulting habitat loss. Here, we examined the microclimatic, physical, and biotic characteristics of natural dens occupied by the northern quoll (Dasyurus hallucatus)—an endangered marsupial threatened by habitat loss—and compared these to (a) superficially similar unoccupied crevices, and (b) artificial dens created by mining companies for northern quolls. Northern quolls occupied natural dens that were cooler and deeper than unoccupied crevices, likely to avoid lethal air temperatures as well as predators. Artificial dens provided similar thermal properties to occupied dens, but lacked key characteristics in having shallower den cavities, less complex surrounding habitat, increased feral cat visitation, and less small mammal prey compared to occupied dens. This study highlights the need to consider multiple facets when constructing artificial refuges, in order to avoid perverse outcomes, such as inadequate shelter, increased predation, and food shortages.
Quantitative and qualitative centrality of a social representation's core elements: The use of the Basic Cognitive Schemes model

The general aim of this research was to investigate the use of the Basic Cognitive Schemes (BCS) model in examining the qualitative vs. quantitative centrality of a social representation’s (SR) core elements. Firstly, we examined the internal structure of the social representation of the European integration (Study 1, N = 71) according to Central Core Theory of the structural approach of social representations. Secondly, we investigated the qualitative vs. quantitative centrality of its core elements (Study 2, N = 106) using the BCS model. The study included young people from Eastern Romania enrolled in a Psychology undergraduate degree. The results permitted the identification of the elements defining the internal structure of the SR of the European integration among young Romanians. We identified five central elements with prescriptive functions (i.e., mobility, unity, opportunity, European funds, and civilization). Furthermore, after checking their qualitative and quantitative centrality using the BCS model, only three of them were confirmed as both qualitatively and quantitatively central. Thus, the results also underlined the importance of the BSC model in better understanding the relationships between the SR’s internal elements. Theoretical and practical implications of the results are discussed.
Comment: Physiological regulation versus autonomous filtration in filter-feeding bivalves: Starting points for progress

Abstract An examination of the available data on filter feeding in bivalve molluscs has recently shown that most methods agree well when the necessary prerequisites are fulfilled (Riisgård 2001a). It remains still a matter of discussion whether the filtration rate is physiologically regulated (Bayne et al. 1993; Bayne 1993, 1998, 1999, 2000; Hawkins et al. 1999; Cranford & Hill 1999) or it should be conceived as a basically autonomous process (Jørgensen et al. 1986a, 1988, 1990; Jørgensen 1990, In his introduction to the Plymouth “TROPHEE” workshop, dealing with physiology of bivalve suspension feeding, Bayne (1998) was a spokesman for physiological regulation of the filtration rate, rejecting the concept of bivalve Filter feeding as a basically autonomous process as advanced by Jørgensen (1990, 1996). The present comment attempts to find some concrete starting points for solving the current controversy and to make the substance of the controversy more transparent.
Does the non-native European catfish Silurus glanis threaten French river fish populations?

The European catfish, Silurus glanis, was widely introduced in western Europe, and it has now established self-sustaining populations in numerous large rivers of western France. Using data collected from surveys conducted by the French National Agency for Water and Aquatic Environment (Onema) from 1989 to 2010 in more than 500 sites throughout the country (10636 electrofishing surveys), we investigated the potential impact of the European catfish on fish communities in French rivers. In the first part of the analysis, we compared trends observed before and after the European catfish was established at given sites (before-after analysis). Species richness, evenness and diversity decreased significantly after the European catfish was established at 1.4%, 1.4% and 5.8% of the sites, respectively. Total fish biomass and density decreased significantly at 6.6% and 2.9% of the sites, respectively. In the second part of the analysis, we compared sites with European catfish against sites lacking European catfish during the same period (with-without analysis). Fish species richness was significantly higher in sites with European catfish. No significant differences in fish diversity, evenness, total fish biomass or density were found between sites with or without European catfish. While our results indicate that the European catfish may in a few cases impact fish communities or populations, it does not appear to be responsible for a countrywide collapse in fish assemblages.