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    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    Physicochemical characterization of dietary supplements used in the therapy of inflammatory bowel diseases

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    Upalne bolesti crijeva skupina su autoimunih bolesti koje karakterizira kronično ili relapsno upalno stanje u gastrointestinalnom traktu. Zabrinjava rast incidencije i prevalencije ovih bolesti u općoj populaciji jer ozbiljno narušavaju kvalitetu života pacijenata i predstavljaju brojne izazove za zdravstvo. Zbog izazovnog i dugotrajnog liječenja, pacijenti s upalnim bolestima crijeva nerijetko posežu za dodacima prehrani. Kako je broj pacijenata koji koriste dodatke prehrani u porastu, u fokus dolazi pitanje kontrole kvalitete dodataka prehrani. Cilj ovoga rada bio je prema USP protokolima provesti fizikalno-kemijsku karakterizaciju biljnih dodataka prehrani koji se koriste u terapiji upalnih bolesti crijeva. Ispitivano je 36 uzoraka u različitim dozirnim oblicima: tablete, prašci, tvrde capsule i meke kapsuse. Provedena su sljedeća ispitivanja: ispitivanje nasipne gustoće i gustoće nakon protresivanja (USP), varijacije mase dozirnih oblika (USP ), raspadljivosti (USP ), pucanja mekih kapsula (USP ), rastrošljivosti tableta (USP ) i ispitivanje sile loma tableta (USP ). Najbolja svojstva tečenja prema nasipnoj gustoći nakon protresivanja među ispitivanim uzorcima prašaka imaju sirovine kurkume, a najlošija uzorci andrografisa. Sve ispitivane tablete i kapsule zadovoljile su kriterij USP-a u ispitivanju varijacije mase. Samo jedan uzorak nije zadovoljio kriterij raspadljivosti. U ispitivanju pucanja mekih kapsula i rastrošljivosti tableta svi su uzorci zadovoljili USP kriterije. Sila loma ispitivanih tableta bila je u rasponu od 27,7 do 248,5N. . Loša svojstva tečenja sirovina mogla bi uzrokovati neujednačenost dozirnih jedinica, a tableta koja se nije raspala najvjerojatnije neće biti učinkovita in vivo.Text Inflammatory bowel diseases are a group of autoimmune diseases characterized by chronic or relapsing inflammatory conditions in the gastrointestinal tract. The increasing incidence and prevalence of these diseases in the general population are concerning because they seriously compromise the quality of life of patients and present numerous challenges for healthcare Due to the challenging and prolonged treatment, patients with inflammatory bowel diseases often turn to dietary supplements. As the number of patients using these supplements is growing, it is important to investigate their effectiveness and safety. The aim of this work was to conduct a physicochemical characterization of herbal dietary supplements used in the therapy of inflammatory bowel diseases according to the USP protocols. 36 samples were tested in various dosage forms: tablets, powders, hard capsules and soft capsules. The following tests were carried out: bulk density and tapped density (USP ), weight variation of dosage forms (USP ), disintegration (USP ), soft capsule rupture (USP ), tablet friability (USP ) and tablet breaking force (USP ).The raw materials of turmeric have the best flow properties, according to tapped density testing, among the tested powder samples, while the andrographis samples have the least desirable flow properties. All tested tablets and capsules passed the USP weight variation test. Only one sample did not meet the disintegration criteria. In the soft capsule rupture and tablet friability testing, all samples met the USP criteria. Tablet breaking force was in the range from 27.7 to 248.5N. Poor raw material flow characteristics can cause unequal dosing units, while a tablet that did not disintegrate is unlikely to be effective in vivo

    Physicochemical characterization of dietary supplements used in the therapy of inflammatory bowel diseases

    No full text
    Upalne bolesti crijeva skupina su autoimunih bolesti koje karakterizira kronično ili relapsno upalno stanje u gastrointestinalnom traktu. Zabrinjava rast incidencije i prevalencije ovih bolesti u općoj populaciji jer ozbiljno narušavaju kvalitetu života pacijenata i predstavljaju brojne izazove za zdravstvo. Zbog izazovnog i dugotrajnog liječenja, pacijenti s upalnim bolestima crijeva nerijetko posežu za dodacima prehrani. Kako je broj pacijenata koji koriste dodatke prehrani u porastu, u fokus dolazi pitanje kontrole kvalitete dodataka prehrani. Cilj ovoga rada bio je prema USP protokolima provesti fizikalno-kemijsku karakterizaciju biljnih dodataka prehrani koji se koriste u terapiji upalnih bolesti crijeva. Ispitivano je 36 uzoraka u različitim dozirnim oblicima: tablete, prašci, tvrde capsule i meke kapsuse. Provedena su sljedeća ispitivanja: ispitivanje nasipne gustoće i gustoće nakon protresivanja (USP), varijacije mase dozirnih oblika (USP ), raspadljivosti (USP ), pucanja mekih kapsula (USP ), rastrošljivosti tableta (USP ) i ispitivanje sile loma tableta (USP ). Najbolja svojstva tečenja prema nasipnoj gustoći nakon protresivanja među ispitivanim uzorcima prašaka imaju sirovine kurkume, a najlošija uzorci andrografisa. Sve ispitivane tablete i kapsule zadovoljile su kriterij USP-a u ispitivanju varijacije mase. Samo jedan uzorak nije zadovoljio kriterij raspadljivosti. U ispitivanju pucanja mekih kapsula i rastrošljivosti tableta svi su uzorci zadovoljili USP kriterije. Sila loma ispitivanih tableta bila je u rasponu od 27,7 do 248,5N. . Loša svojstva tečenja sirovina mogla bi uzrokovati neujednačenost dozirnih jedinica, a tableta koja se nije raspala najvjerojatnije neće biti učinkovita in vivo.Text Inflammatory bowel diseases are a group of autoimmune diseases characterized by chronic or relapsing inflammatory conditions in the gastrointestinal tract. The increasing incidence and prevalence of these diseases in the general population are concerning because they seriously compromise the quality of life of patients and present numerous challenges for healthcare Due to the challenging and prolonged treatment, patients with inflammatory bowel diseases often turn to dietary supplements. As the number of patients using these supplements is growing, it is important to investigate their effectiveness and safety. The aim of this work was to conduct a physicochemical characterization of herbal dietary supplements used in the therapy of inflammatory bowel diseases according to the USP protocols. 36 samples were tested in various dosage forms: tablets, powders, hard capsules and soft capsules. The following tests were carried out: bulk density and tapped density (USP ), weight variation of dosage forms (USP ), disintegration (USP ), soft capsule rupture (USP ), tablet friability (USP ) and tablet breaking force (USP ).The raw materials of turmeric have the best flow properties, according to tapped density testing, among the tested powder samples, while the andrographis samples have the least desirable flow properties. All tested tablets and capsules passed the USP weight variation test. Only one sample did not meet the disintegration criteria. In the soft capsule rupture and tablet friability testing, all samples met the USP criteria. Tablet breaking force was in the range from 27.7 to 248.5N. Poor raw material flow characteristics can cause unequal dosing units, while a tablet that did not disintegrate is unlikely to be effective in vivo

    Physicochemical characterization of dietary supplements used in the therapy of inflammatory bowel diseases

    No full text
    Upalne bolesti crijeva skupina su autoimunih bolesti koje karakterizira kronično ili relapsno upalno stanje u gastrointestinalnom traktu. Zabrinjava rast incidencije i prevalencije ovih bolesti u općoj populaciji jer ozbiljno narušavaju kvalitetu života pacijenata i predstavljaju brojne izazove za zdravstvo. Zbog izazovnog i dugotrajnog liječenja, pacijenti s upalnim bolestima crijeva nerijetko posežu za dodacima prehrani. Kako je broj pacijenata koji koriste dodatke prehrani u porastu, u fokus dolazi pitanje kontrole kvalitete dodataka prehrani. Cilj ovoga rada bio je prema USP protokolima provesti fizikalno-kemijsku karakterizaciju biljnih dodataka prehrani koji se koriste u terapiji upalnih bolesti crijeva. Ispitivano je 36 uzoraka u različitim dozirnim oblicima: tablete, prašci, tvrde capsule i meke kapsuse. Provedena su sljedeća ispitivanja: ispitivanje nasipne gustoće i gustoće nakon protresivanja (USP), varijacije mase dozirnih oblika (USP ), raspadljivosti (USP ), pucanja mekih kapsula (USP ), rastrošljivosti tableta (USP ) i ispitivanje sile loma tableta (USP ). Najbolja svojstva tečenja prema nasipnoj gustoći nakon protresivanja među ispitivanim uzorcima prašaka imaju sirovine kurkume, a najlošija uzorci andrografisa. Sve ispitivane tablete i kapsule zadovoljile su kriterij USP-a u ispitivanju varijacije mase. Samo jedan uzorak nije zadovoljio kriterij raspadljivosti. U ispitivanju pucanja mekih kapsula i rastrošljivosti tableta svi su uzorci zadovoljili USP kriterije. Sila loma ispitivanih tableta bila je u rasponu od 27,7 do 248,5N. . Loša svojstva tečenja sirovina mogla bi uzrokovati neujednačenost dozirnih jedinica, a tableta koja se nije raspala najvjerojatnije neće biti učinkovita in vivo.Text Inflammatory bowel diseases are a group of autoimmune diseases characterized by chronic or relapsing inflammatory conditions in the gastrointestinal tract. The increasing incidence and prevalence of these diseases in the general population are concerning because they seriously compromise the quality of life of patients and present numerous challenges for healthcare Due to the challenging and prolonged treatment, patients with inflammatory bowel diseases often turn to dietary supplements. As the number of patients using these supplements is growing, it is important to investigate their effectiveness and safety. The aim of this work was to conduct a physicochemical characterization of herbal dietary supplements used in the therapy of inflammatory bowel diseases according to the USP protocols. 36 samples were tested in various dosage forms: tablets, powders, hard capsules and soft capsules. The following tests were carried out: bulk density and tapped density (USP ), weight variation of dosage forms (USP ), disintegration (USP ), soft capsule rupture (USP ), tablet friability (USP ) and tablet breaking force (USP ).The raw materials of turmeric have the best flow properties, according to tapped density testing, among the tested powder samples, while the andrographis samples have the least desirable flow properties. All tested tablets and capsules passed the USP weight variation test. Only one sample did not meet the disintegration criteria. In the soft capsule rupture and tablet friability testing, all samples met the USP criteria. Tablet breaking force was in the range from 27.7 to 248.5N. Poor raw material flow characteristics can cause unequal dosing units, while a tablet that did not disintegrate is unlikely to be effective in vivo

    Variations on the Author

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    “Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship

    Appropriate Similarity Measures for Author Cocitation Analysis

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    We provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis

    Dispelling the Myths Behind First-author Citation Counts

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    We conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more sophisticated methods

    Author Index

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    koamabayili/VECTRON-author-checklist: VECTRON author checklist

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    We have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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