bluuebunny/crossref_metadata_2025_split huggingface dataset:
The origin of the ultramafic rocks of the Tulu Dimtu Belt, western Ethiopia – do they represent remnants of the Mozambique Ocean?
Authors: BLADES MORGAN L. , FODEN JOHN , COLLINS ALAN S. , ALEMU TADESSE , WOLDETINSAE GIRMA 
Published: October 2017

AbstractThe East African Orogen contains a series of high-strain zones that formed as Gondwana amalgamated. The Tulu Dimtu shear belt is one of these N–S structures within the Barka–Tulu Dimtu zone in western Ethiopia, and contains ultramafic bodies of equivocal origin. Identifying the petrogenetic origin of these enigmatic rocks provides evidence for the geodynamic significance of these shear zones. Owing to their altered state, these ultramafic rocks’ well-preserved chrome spinels provide the only reliable evidence for their source and tectonic affiliation. Chrome spinels have high Cr2O3(30.04–68.76 wt %), while recalculated Fe2O3(< 2 %) and TiO2(0.01–0.51 %) values are low. The Cr# (molar Cr3+/Cr3++ Al2+) and Mg# (Mg2+/Mg2++ Fe2+) have averages of 0.88 and 0.22, respectively. Based on olivine–spinel equilibria, the calculatedfO2values (FMQ +3.03) for the dunites reveal a highly oxidized environment. This spinel chemistry (high Cr# > 0.6 and low Ti) supports a supra-subduction origin, with an oxidized mantle source more refractory than depleted MORB mantle (DMM). These spinel compositions indicate that some ultramafic bodies in western Ethiopia, including those from Daleti, Tulu and Dimtu, are serpentinized peridotites emplaced as obducted ophiolite complexes. By contrast, the ultramafic rocks from the Yubdo locality have a different spinel chemistry, with strong affiliation with igneous spinels formed in Alaskan-style mafic intrusions. These collective results suggest that regardless of their origin as supra-subduction ophiolites or as Alaskan-type intrusions, these spinels were formed on a convergent-subduction margin.
Primitive stalked echinoderms from the Middle Ordovician (Darriwilian) of Bang Song Tho, Kanchanaburi, western Thailand
Authors: PAUL CHRISTOPHER R.C. , BOUCOT ARTHUR J. , DONOVAN STEPHEN K. , ZHAN REN-BIN , TANSATHIEN WATTANA 
Published: October 2017

AbstractThe Middle Ordovician (Darriwilian) echinoderm fauna of Bang Mueang Song Tho, western Thailand (Pha Phum group, Bo Ngam Formation(?)), includes rare thecae, and common thecal ossicles and columnals, and is dominated by ‘cystoids’. Cheirocrinid glyptocystitoids includeCheirocystellasp. (=Echinoencrinitessp. aff.E. senckenbergii(von Meyer)sensuWolfart), ‘Cheirocrinus’ sp. and Cheirocrinidaeincertae sedis. Hemicosmitoids are composed ofParacaryocrinites kochi(Wolfart), ‘Paracaryocrinites’ sp. andPolycosmitessp. cf.P. kaekeliWolfart. The aristocystitidSinocystissp. cf.S. loczyiReed is the only diploporite. Columnals ofBystrowicrinus(col.) sp. are probably crinoidal. The fullest determination of the echinoderm biodiversity of this site has been obtained using all specimens from single ossicles to articulated thecae. The limited taphonomic data suggests that the echinoderm assemblage is parauthochthonous. Other echinoderms described from coeval deposits in this region includeStichocystis thailandicaWolfart;Heliocrinitessp. aff.H. qualusBather (probably aLophotocystisPaul);Gomphocystites? sp. indet. (= trilobite?);Codiacystissp. aff.C. bohemicus(Barrande) (= bryozoan?);Aristocystis[sic] sp. A of Paul; and [non]Incertae sedissp. C of Paul (may not be an echinoderm).
Origin of exotic clasts in the Central-Southern Apennines: clues to the Cenozoic fold-and-thrust collisional belt in the Central Mediterranean area
Authors: ARRAGONI S. , FERNÁNDEZ L. P. , CUESTA A. , MAGGI M. , CIANFARRA P. , SALVINI F. 
Published: October 2017

AbstractThe Central-Southern Apennines are the result of the collision between Europe and Africa. Despite the volume of existing literature, many problems remain unsolved such as the presence of Tertiary conglomerates containing exotic basement clasts. The lack of basement rocks in the Central-Southern Apennines implies that the origin of these clasts has to be sought in areas where the basement is extensively exposed. These include the Calabro–Peloritani arc and the Sardinia–Corsica block, which in Cenozoic time were connected to the Central-Southern Apennines. In this work we present the results of sedimentary, geochemical and petrographic analyses performed on the exotic basement-derived clasts. These analyses include lithological, major- and minor-element and rare Earth element compositions which are compared to analogous rocks from Calabria and Sardinia basements. Results indicate Eastern Sardinia as the primary source area for the studied conglomeratic units, linking the Central-Southern Apennines sedimentary cover to the Mesozoic carbonates of Eastern Sardinia prior to the opening of Tyrrhenian Sea. The Cilento unit (Campania) was directly fed by an uplifting Cenozoic orogen, and the Filettino, Gavignano (Latium) and Ariano Irpino (Campania) units were produced by the successive reworking of ‘Cilento-like’ sedimentary units. These results may imply that part of the Central-Southern Apennines represented a portion of the European margin of the Tethys.
ON POWERS OF HALF-TWISTS IN M(0, 2n)
Authors: MASBAUM GREGOR 
Published: October 2017

AbstractWe use elementary skein theory to prove a version of a result of Stylianakis (Stylianakis, The normal closure of a power of a half-twist has infinite index in the mapping class group of a punctured sphere, arXiv:1511.02912) who showed that under mild restrictions on m and n, the normal closure of the mth power of a half-twist has infinite index in the mapping class group of a sphere with 2n punctures.
ON THE RESIDUE OF EISENSTEIN CLASSES OF SIEGEL VARIETIES
Authors: LEMMA FRANCESCO 
Published: October 2017

AbstractEisenstein classes of Siegel varieties are motivic cohomology classes defined as pull-backs by torsion sections of the polylogarithm prosheaf on the universal abelian scheme. By reduction to the Hilbert–Blumenthal case, we prove that the Betti realization of these classes on Siegel varieties of arbitrary genus have non-trivial residue on zero-dimensional strata of the Baily–Borel–Satake compactification. A direct corollary is the non-vanishing of a higher regulator map.
ROOTS OF DEHN TWISTS ABOUT MULTICURVES
Authors: RAJEEVSARATHY KASHYAP , VAIDYANATHAN PRAHLAD 
Published: October 2017

AbstractA multicurve${\mathcal{C}}$ in a closed orientable surface Sg of genus g is defined to be a finite collection of disjoint non-isotopic essential simple closed curves. A left-handed Dehn twist$t_{\mathcal{C}}$about${\mathcal{C}}$ is the product of left-handed Dehn twists about the individual curves in ${\mathcal{C}}$. In this paper, we derive necessary and sufficient conditions for the existence of a root of $t_{\mathcal{C}}$ in the mapping class group Mod(Sg). Using these conditions, we obtain combinatorial data that correspond to roots, and use it to determine upper bounds on the degree of a root. As an application of our theory, we classify all such roots up to conjugacy in Mod(S4). Finally, we establish that no such root can lie in the level m congruence subgroup of Mod(Sg), for m ≥ 3.
Survey of otolaryngology services in Ukraine and neighbouring Central and Eastern European countries
Authors: Verkerk M M , Wagner R , Fishchuk R , Fagan J J 
Published: October 2017

AbstractObjective:The present humanitarian crisis in Ukraine is putting strains on its healthcare system. This study aimed to assess services and training in otolaryngology, audiology and speech therapy in Ukraine and its geographical neighbours.Method:Survey study of 327 otolaryngologists from 19 countries.Results:Fifty-six otolaryngologists (17 per cent) from 15 countries responded. Numbers of otolaryngologists varied from 3.6 to 12.3 per 100 000 population (Ukraine = 7.8). Numbers of audiologists varied from 0, in Ukraine, to 2.8 per 100 000, in Slovakia, and numbers of speech therapists varied from 0, in Bulgaria, to 4.0 per 100 000, in Slovenia (Ukraine = 0.1). Ukraine lacks newborn and school hearing screening, good availability of otological drills and microscopes, and a cochlear implant programme.Conclusion:There is wide variation in otolaryngology services in Central and Eastern Europe. All countries surveyed had more otolaryngologists per capita than the UK, but availability of audiology and speech and language therapy is poor. Further research on otolaryngology health outcomes in the region will guide service improvement.
Argentine and Egyptian History Entangled: From Perón to Nasser
Authors: BALLOFFET LILY PEARL 
Published: October 2017

AbstractThis article presents an entangled history of Argentina and Egypt in the years surrounding the 1952 Egyptian Revolution. It combines diplomatic, migration and anti-imperial activism histories to delineate the intellectual and institutional links between these nations from the late 1940s to the 1950s – from the rise of Peronism through to Nasser's management of the Suez Canal crisis of 1956. Diverse Argentine social and political sectors saw parallels between the anti-imperial struggles in the Arab world and in Latin America. Though with differing and sometimes competing agendas, these groups learned and deployed the language of non-alignment and South–South solidarity in the escalating Cold War.
Women in Uruguayan Communism: Contradictions and Ambiguities, 1920s–1960s
Authors: LEIBNER GERARDO 
Published: October 2017

AbstractThis article examines the dynamics of women's participation in the Communist Party of Uruguay (PCU) from the 1920s to the 1960s. Despite its commitment to women's emancipation and to equality between men and women, the PCU's attitudes towards gender equality were often contradictory and its messages were ambiguous. Though it promoted women's participation, the Party oscillated between seeking to overcome social prejudices, upholding principled and dogmatic positions, and accommodating the conservative habits prevalent among the working class. Women were encouraged to take part in activities but not to assume leadership positions. The 1960s, ironically a period characterised by openness and political success, was a decade of regression in gender equality that stood in contrast to the Uruguayan Communists' long trajectory concerning women's rights.
Implicit knowledge of lexical stress rules: Evidence from the combined use of subjective and objective awareness measures
Authors: CHAN RICKY K. W. , LEUNG JANNY H. C. 
Published: October 2017

ABSTRACTDespite the growing interest in the phenomenon of learning without intention, the incidental learning of phonological features, especially prosodic features, has received relatively little attention. This paper reports an experiment on incidental learning of lexical stress rules, and investigates whether the resultant knowledge can be unconscious, abstract, and rule based. Participants were incidentally exposed to a lexical stress system where stress location of a word is mainly determined by the final phoneme, syllable type, and syllable weight. Learning was assessed by a pronunciation judgment task. Results indicate that participants were able to transfer their knowledge of stress patterns to novel words whose final phoneme was not previously encountered, suggesting that participants had acquired abstract and potentially rule-based knowledge. The combined use of subjective and objective measures of awareness in the present study provides a strong piece of evidence of the acquisition of implicit knowledge.
Analytic number theory for 0-cycles
Authors: CHEN WEIYAN 
Published: October 2017

AbstractThere is a well-known analogy between integers and polynomials over 𝔽q, and a vast literature on analytic number theory for polynomials. From a geometric point of view, polynomials are equivalent to effective 0-cycles on the affine line. This leads one to ask: Can the analogy between integers and polynomials be extended to 0-cycles on more general varieties? In this paper we study prime factorisation of effective 0-cycles on an arbitrary connected varietyVover 𝔽q, emphasizing the analogy between integers and 0-cycles. For example, inspired by the works of Granville and Rhoades, we prove that the prime factors of 0-cycles are typically Poisson distributed.
Major stopover regions and migratory bottlenecks for Nearctic-Neotropical landbirds within the Neotropics: a review
Authors: BAYLY NICHOLAS J. , ROSENBERG KENNETH V. , EASTON WENDY E. , GÓMEZ CAMILA , CARLISLE JAY , EWERT DAVID N. , DRAKE ANNA , GOODRICH LAURIE 
Published: October 2017

SummaryNearly 300 species of landbirds, whose populations total billions, migrate between the Neotropics and North America. Many migratory populations are in steep decline, and migration is often identified as the greatest source of annual mortality. Identifying birds’ needs on migration is therefore central to designing conservation actions for Nearctic-Neotropical migratory birds; yet migration through the Neotropics is a significant knowledge gap in our understanding of the full annual cycle. Here, we synthesise current knowledge of Neotropical stopover regions and migratory bottlenecks, focusing on long-distance, migratory landbirds that spend the boreal winter in South America. We make the important distinction between “true” stopover—involving multi-day refuelling stops—and rest-roost stops lasting < 24 hours, citing a growing number of studies that show individual landbirds making long stopovers in just a few strategic areas, to accumulate large energy reserves for long-distance flights. Based on an exhaustive literature search, we found few published stopover studies from the Neotropics, but combined with recent tracking studies, they describe prolonged stopovers for multiple species in the Orinoco grasslands (Llanos), the Sierra Nevada de Santa Marta (Colombia), and the Yucatan Peninsula. Bottlenecks for diurnal migrants are well described, with the narrowing Central American geography concentrating millions of migrating raptors at several points in SE Mexico, Costa Rica, Panama and the Darién. However, diurnally migrating aerial insectivores remain understudied, and determining stopover/roost sites for this steeply declining group is a priority. Despite advances in our knowledge of migration in the Neotropics, we conclude that major knowledge gaps persist. To identify stopover sites and habitats and the threats they face, we propose a targeted and collaborative research agenda at an expanded network of Neotropical sites, within the context of regional conservation planning strategies.
Organizing specialized production: gender in the medieval Flemish wool cloth industry (c. 1250–1384)
Authors: HUTTON SHENNAN 
Published: October 2017

ABSTRACT:In the earliest centuries of the Flemish wool cloth industry, the lower-level, preparatory stage of wool processing and spinning was organized by a form of ‘putting-out’ significantly different from later forms in the industry. It took place in and around the cities or smaller drapery centres rather than in rural areas, and women were prominent as middle-level organizers, managers and small entrepreneurs, despite their marginal status in or exclusion from the craft guilds. Using small bits of evidence from Flemish regulations and contracts from the earliest documented period of cloth production, this article analyses lower-level organization through the lens of gender. It shows that the production of yarn was organized by a broad middling level of drapers and small marketsellers, who were women, men and husbands and wives working together. The gendered lens distinguishes this middle level, which was indispensable to the efficient production of wool cloth in medieval Flanders.
Embryonic development and larval growth of Brycon nattereri Günther, 1864 (Characidae) and its implications for captive rearing
Authors: Maria Alexandre N. , Ninhaus-Silveira Alexandre , Orfão Laura H. , Viveiros Ana T.M. 
Published: October 2017

SummaryThe aim of this study was to describe, for the first time, the embryogenesis and larval growth of the Paraitinga Brycon nattereri Günther, 1864 reared in captivity. After artificial fertilization, eggs were incubated at constant temperature (~19°C) and collected every 15 min during the first 3 h and then every 3 h until hatching. Five larvae were collected daily over 15 days for evaluation of the length, yolk sac volume and specific growth rate. The following stages of embryonic development were identified: zygote, cleavage, gastrula, segmentation and larval. The hatching occurred after 50–54 h, with larvae poorly developed and fully depigmented, devoid of mouth and swimming capacity, presenting 6.32 mm total length and 3.64 mm3 yolk sac volume. The mouth opening was observed between days 3–4 after hatching. The yolk sac absorption was slow during the first 3 days, increasing sharply after this period, being completed on the day 11. During this period there was a decrease in the larval growth rate. After yolk sac absorption, an increase in the growth rate was observed that coincided with the start of exogenous feeding. Cannibalism was not observed during the 15 days of evaluation. The initial development of B. nattereri was slow and poorly developed larvae in relation to other Brycon species, certainly due to the lower temperature required for egg incubation and larval rearing. Other studies are needed in order to develop techniques to improve the methods of incubating eggs and feeding larvae.
Interpersonal Problem-Solving Skills, Executive Function and Learning Potential in Preadolescents with High/Low Family Risk
Authors: Mata Sara , Gómez-Pérez M. Mar , Molinero Clara , Calero M. Dolores 
Published: October 2017

AbstractSituations generated by high family risk have a negative effect on personal development, especially during preadolescence. Growing up in the presence of risk factors can lead to negative consequences on mental health or on school performance. The objective of this study focuses on individual factors related to this phenomenon during preadolescence. Specifically, we seek to establish whether level of family risk (high vs. low risk) is related to interpersonal problem-solving skills, executive function and learning potential in a sample of preadolescents controlling age, sex, total IQ, verbal comprehension ability and the classroom influences. The participants were 40 children, 23 boys and 17 girls between the ages of 7 and 12, twenty of which had a record on file with the Social and Childhood Protection Services of Information deleted to maintain the integrity of the review process, and therefore, a high family risk situation. The other 20 participants had a low family risk situation. Results show that the preadolescents from high family risk performed worse on interpersonal solving-problem skills and executive function (p < .05, b from –119,201.81 to 132,199.43, confidence interval from –162,589.78/–75,813.8 to 84,403.05/179,995.8). Nevertheless, they showed the same ability to learn as the participants from low family risk. These results highlight the negative effects of high family risk situation in preadolescents and give value of taking into account protective factors such as learning potential when assessing preadolescents from high family risk.
Subjective Happiness Optimizes Educational Outcomes: Evidence from Filipino High School Students
Authors: Datu Jesus Alfonso D. , Valdez Jana Patricia , Cabrera Ian Kenneth , Salanga Maria Guadalupe 
Published: October 2017

AbstractSubjective happiness has been found to be associated with key psychological outcomes. However, there is paucity of research that assessed how subjective happiness is related to a number of positive student outcomes in the educational setting. The objective of the study was to assess the associations of subjective happiness with academic engagement, flourishing, and school resilience among 606 Filipino high school students (mage = 13.87; nboys = 300, ngirls = 305, nmissing = 1) in the Philippine context. Results of path analysis demonstrated that subjective happiness positively predicted behavioral engagement (β = .08, p < .01), emotional engagement (β = .08, p < .01), flourishing (β = .17, p < .01), and school resilience (β = .18, p < .01) even after controlling for gender. The theoretical and practical implications of the findings are discussed.
Core Self-Evaluations and Individual Strategies of Coping with Unemployment among Displaced Spanish Workers
Authors: Virkes Tihana , Maslić Seršić Darja , Lopez-Zafra Esther 
Published: October 2017

AbstractUnemployment has negative but also positive effects on mental health and general well-being depending on which coping strategies the individual use. Our aim was to determine the contribution of core self-evaluations in explaining the coping strategies of job search and job devaluation, as well as to test the potential moderation effect of job search and mediation effect of job devaluation on the relationship between self core-evaluations and both positive and negative experience of unemployment. One hundred seventy-eight individuals who lost their jobs involuntarily for a longer period than one month completed a questionnaire while attending to employment office. Results show that there is a significant relation between core-self evaluations and job devaluation (.37**). Furthermore, core-self evaluations were positively related to positive experience of unemployment (r= .31;p <.01) and negatively related to negative experience of unemployment (r= .60;p <.01). Moreover, self-core evaluations predicted both coping with unemployment strategies (job devaluation; β = .26;p <.01 and job search β = .19;p <.05). However, job search did not moderate the relationship between core self-evaluations and experience of unemployment. But, individuals with a longer duration of the current period of unemployment and higher core self-evaluations had a more positive experience of unemployment, and job devaluation partially mediated this relation (SE= .002;p =.038). These results imply that programs interventions should include the improvement of core self-evaluations and the positive experience of unemployed people.
A signature of enhanced lipid metabolism, lipid peroxidation and aldehyde stress in therapy-induced senescence
Authors: Flor Amy C , Wolfgeher Don , Wu Ding , Kron Stephen J 
Published: October 2017

AbstractAt their proliferative limit, normal cells arrest and undergo replicative senescence, displaying large cell size, flat morphology, and senescence-associated beta-galactosidase (SA-β-Gal) activity. Normal or tumor cells exposed to genotoxic stress undergo therapy-induced senescence (TIS), displaying a similar phenotype. Senescence is considered a DNA damage response, but cellular heterogeneity has frustrated identification of senescence-specific markers and targets. To explore the senescent cell proteome, we treated tumor cells with etoposide and enriched SA-β-GalHI cells by fluorescence-activated cell sorting (FACS). The enriched TIS cells were compared to proliferating or quiescent cells by label-free quantitative LC-MS/MS proteomics and systems analysis, revealing activation of multiple lipid metabolism pathways. Senescent cells accumulated lipid droplets and imported lipid tracers, while treating proliferating cells with specific lipids induced senescence. Senescent cells also displayed increased lipid aldehydes and upregulation of aldehyde detoxifying enzymes. These results place deregulation of lipid metabolism alongside genotoxic stress as factors regulating cellular senescence.