Flag-symmetry of the poset of shuffles and a local action of the symmetric group

We show that the poset of shuffles introduced by Greene in 1988 is flag-symmetric, and we describe a "local" permutation action of the symmetric group on the maximal chains which is closely related to the flag symmetric function of the poset. A key tool is provided by a new labeling of the maximal chains of a poset of shuffles, which is also used to give bijective proofs of enumerative properties originally obtained by Greene. In addition we define a monoid of multiplicative functions on all posets of shuffles and describe this monoid in terms of a new operation on power series in two variables.Comment: 34 pages, 6 figure

MARKETING MIX STRATEGY DETERMINANTS AND SOCIAL MEDIA IN VETERINARY-BASED BUSINESS: EXPERIENCE FROM SERBIA

The paper is dedicated to testing the entrepreneurial idea of founding a service micro company in the field of veterinary medicine - Animal Care. The starting point is the theoretical aspect of marketing mix services observed through the prism of a specific company in the field of agribusiness. For the needs of the research, secondary sources were used and a survey was conducted which gave the results of the influence of the elements of marketing mix services on marketing communication towards the users of the company Animal Care. It was determined that the effects of promotion, especially in the field of digital marketing, directly affect the increase in sales of products and services, and thus the satisfaction of consumers & users in veterinary services. The results of the research provided answers to research questions and helped the entrepreneur to understand that selected elements of the marketing mix help in the promotion of products and services of Animal Care companies. Respondents showed interest in using the services of the Animal Care company with the help of the Animal Care android application and website as a selected distribution channel, but also for the promotion of new services and offers of the company

MARKETING MIX STRATEGY DETERMINANTS AND SOCIAL MEDIA IN VETERINARY-BASED BUSINESS: EXPERIENCE FROM SERBIA

The paper is dedicated to testing the entrepreneurial idea of founding a service micro company in the field of veterinary medicine - Animal Care. The starting point is the theoretical aspect of marketing mix services observed through the prism of a specific company in the field of agribusiness. For the needs of the research, secondary sources were used and a survey was conducted which gave the results of the influence of the elements of marketing mix services on marketing communication towards the users of the company Animal Care. It was determined that the effects of promotion, especially in the field of digital marketing, directly affect the increase in sales of products and services, and thus the satisfaction of consumers & users in veterinary services. The results of the research provided answers to research questions and helped the entrepreneur to understand that selected elements of the marketing mix help in the promotion of products and services of Animal Care companies. Respondents showed interest in using the services of the Animal Care company with the help of the Animal Care android application and website as a selected distribution channel, but also for the promotion of new services and offers of the company

Report on Running Channels in iseg 32-Ch HV Power Supplies

We report a study and solution of the so-called "running channel" (RC) phenomenon observed in the iseg 32-channel HV power supplies for the ATLAS Liquid Argon Calorimetry

Pattern Avoidance in Poset Permutations

We extend the concept of pattern avoidance in permutations on a totally ordered set to pattern avoidance in permutations on partially ordered sets. The number of permutations on $P$ that avoid the pattern $\pi$ is denoted $Av_P(\pi)$. We extend a proof of Simion and Schmidt to show that $Av_P(132) \leq Av_P(123)$ for any poset $P$, and we exactly classify the posets for which equality holds.Comment: 13 pages, 1 figure; v2: corrected typos; v3: corrected typos and improved formatting; v4: to appear in Order; v5: corrected typos; v6: updated author email addresse

First annotated draft genomes of nonmarine ostracods (Ostracoda, Crustacea) with different reproductive modes.

Ostracods are one of the oldest crustacean groups with an excellent fossil record and high importance for phylogenetic analyses but genome resources for this class are still lacking. We have successfully assembled and annotated the first reference genomes for three species of nonmarine ostracods; two with obligate sexual reproduction (Cyprideis torosa and Notodromas monacha) and the putative ancient asexual Darwinula stevensoni. This kind of genomic research has so far been impeded by the small size of most ostracods and the absence of genetic resources such as linkage maps or BAC libraries that were available for other crustaceans. For genome assembly, we used an Illumina-based sequencing technology, resulting in assemblies of similar sizes for the three species (335-382 Mb) and with scaffold numbers and their N50 (19-56 kb) in the same orders of magnitude. Gene annotations were guided by transcriptome data from each species. The three assemblies are relatively complete with BUSCO scores of 92-96. The number of predicted genes (13,771-17,776) is in the same range as Branchiopoda genomes but lower than in most malacostracan genomes. These three reference genomes from nonmarine ostracods provide the urgently needed basis to further develop ostracods as models for evolutionary and ecological research