Papposphaera heldalii sp nov (Haptophyta, Papposphaeraceae) from Svalbard

In an attempt to establish a taxonomy for the polar contingent of lightly calcified coccolithophores, we are currently dealing with species of Papposphaera. Here we describe a new species, Papposphaera heldalii sp. nov., based on material from Svalbard. The species is unique in terms of calyx design, which is an elegant modification of the standard P. sagittifera theme, and also in terms of the absence of central area calcification in body coccoliths. The species thus occupies a further step in a sequence of five Arctic forms ranging from P. sagittifera via P. sarion, P. arctica and P. iugifera to P. heldalii showing a gradual reduction of central area calcification in body coccoliths. P. heldalii is unique also in the sense that the species has not been found during any of the major Arctic TEM nanoplankton surveys conducted during the last decades

Analysis of the use of industrial crossbreeding to improve the profitability of the pig industry

The aim of the research was to conduct an economic assessment of the use of industrial crossbreeding in the pig industry. The study was carried out in LLC "Mayak-Agro" (Ukraine) and in the laboratories of the Cherkasy National University named after Bohdan Khmelnitsky and the Cherkasy Experimental Station of Bioresources of the National Academy of Sciences of Ukraine. Ukrainian breeds of pigs were used: (Ukrainian BigWhite-1 (UBW-1), Red White-Belt (RWB) and Duroc of the Ukrainian selection "Steppe" (DUSS)). Breeds of English origin: (Big White (EBW), Landrace (L), Pietrain (P)). Crossbreeds, obtained by crossing the breeds, mentioned above. A comprehensive assessment of the reproductive capacity of a sow was carried out taking into account multiple births, the number of piglets at one month of age and the average daily gain during this period. Growth and development were monitored in terms of changes in live weight by individual weighing at birth and every month to a live weight of 100 and 120 kg. Regardless of maternal form, in the groups where boars of the breeds Red White-Belt and Pietrain were used, higher indicators of comprehensive assessment of reproductive capacity were obtained. The best fattening qualities characterized piglets, obtained from a combination of sows (1/2UBW-1+1/2L) with boars of the Pietrain breed (P). In comparison with other variants of crosses, in this group the animals reached a live weight of 100 kg 7.6 days earlier. Their feed costs per 1 kg of live weight gain were 3.33 feed units, which corresponds to the expected figure of 3.34 feed units when fattening up to 100 kg in 170 days. In terms of industrial pork production, breeding of animals of the group (1/4UBW-1+1/4L+1/2P) was more profitable, in which the highest level of profitability was obtained - 22.3 % for fattening up to 100 kg and 12.5 % for fattening up to 120 kg. Cultivation of three-breed hybrids to a live weight of over 100 kg led to a decrease in profitability among all research groups. The use of the genotype 1/4UBW-1+1/4L+1/2P in industrial production makes it possible to obtain animals of various weight conditions without significant additional costs and profitability level reduction. In the course of the research, it was found, that the best option for three-breed crossing is the use of boars of the Pietrain and Red White-Belt breeds. The use of boars of these breeds is ideal for producers looking for bacon pork. The use of boars of the Duroc breed of the Ukrainian selection "Steppe" (DUSS) makes it possible to obtain fatty pork with the possibility of fattening to different weight categories

Does female-authored research have more educational impact than male-authored research?

This is an accepted manuscript of an article published by Levy Library Press in Journal of Altmetrics on 04/10/2018, available online: http://doi.org/10.29024/joa.2 The accepted version of the publication may differ from the final published version.Female academics are more likely to be in teaching-related roles in some countries, including the USA. As a side effect of this, female-authored journal articles may tend to be more useful for students. This study assesses this hypothesis by investigating whether female first-authored research has more uptake in education than male first-authored research. Based on an analysis of Mendeley readers of articles from 2014 in five countries and 100 narrow Scopus subject categories, the results show that female-authored articles attract more student readers than male-authored articles in Spain, Turkey, the UK and USA but not India. They also attract fewer professorial readers in Spain, the UK and the USA, but not India and Turkey, and tend to be less popular with senior academics. Because the results are based on analysis of differences within narrow fields they cannot be accounted for by females working in more education-related disciplines. The apparent additional educational impact for female-authored research could be due to selecting more accessible micro-specialisms, however, such as health-related instruments within the instrumentation narrow field. Whatever the cause, the results suggest that citation-based research evaluations may undervalue the wider impact of female researchers

La investigación turística publicada en revistas turísticas y no turísticas: análisis bibliométrico de la producción de las universidades catalanas

Los objetivos de este estudio son analizar la producción científica sobre turismo en Cataluña y explorar las diferencias entre las revistas turísticas y no turísticas. Mediante un análisis bibliométrico y de contenido, se muestra la producción desde varios ángulos: la distribución de la producción entre autores, centros y revistas; los tipos de revistas; las temáticas y regiones investigadas; y las disciplinas científicas empleadas. Una conclusión es el importante papel que han desempeñado las revistas no turísticas, especialmente las geográficas, en la difusión del conocimiento turístico

Fractional Integrals and Generalized Olsen Inequalities

Let T_ be the generalized fractional integral operator associated to a function ho:(0,infty)o(0,infty), as defined in cite{Nak2}. For a function W on n, we shall be interested in the boundedness of the multiplication operator fmapstoWcdotThof on generalized Morrey spaces. Under some assumptions on ho, we obtain an inequality for WcdotTho, which can be viewed as an extension of Olsen's and Kurata-Nishigaki-Sugano's results

2015 Little International Agricultural Exposition Catalog

https://openprairie.sdstate.edu/little_international/1019/thumbnail.jp