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Activity and movements of Zospeum isselianum Pollonera 1886 (Gastropoda, Pulmonata, Carychiidae) in a cave in the Kamniške-Savinjske Alps (Slovenia)
Get PDFCilj rada bio je obaviti periodička opažanja hipogejskih puževa Zospeum isselianum Pollonera 1886 na površini stijene u špilji Jama pod Mokrico u Kamniško-Savinjskim Alpama i monitoring udaljenosti
koju su puževi prešli tijekom zadanog vremena. Između 30. travnja i 1. kolovoza 1997. pomicanja puževa bila su mjerena 13 puta. Temperatura zraka kretala se između 6.0 °C i 10.2 °C, a relativna
vlaga između 97% i 100%. Puževi su se tjedno pomicali od 1 do 15 cm. Prosječna udaljenost bila je 0.7 cm dnevno. Puževi su uglavnom puzali oko mjesta na kojima su prvotno i pronađeni.The objective of this work was to make periodic observations of hypogean Zospeum isselianum Pollonera 1886 snails on a sample rock surface in the Jama pod Mokrico cave in the Kamniške-Savinjske Alps and monitor the distance the snails moved over a given period of time. Between April 30 and August 1, 1997, the movement of the snails was recorded thirteen times. The air temperature in the cave was between 6.0 °C and 10.2 °C, and the relative humidity was between 97% and 100%. The snails moved over distances of from 1 to 15 cm per week. The average distance was 0.7 cm per day. The snails generally crept around the places they were initially found
Rasprostranjenost troglobiontnih puževa iz roda Zospeum na području krša Hrvatske
Get PDFRod Zospeum uključuje troglobiontne kopnene puževe. Naseljavaju podzemna staništa središnjih Pirineja, Južnih Alpa i Dinarskog krša od nekoliko metara nadmorske visine do nadmorske visine od 2000 metara. Znanje o ekologiji Zospeuma je vrlo oskudno. Poznato je da žive u špiljama i pukotinama i da se vjerojatno hrane detritusom koji se nalazi u ilovači i špiljskom sedimentu. U špiljama se javljaju na zidovima, na tlu pored lokva ili na organskim tvarima (trulo drvo). Taksonomija roda je temeljena prvenstveno na konhološkim karakteristikama. Njihova je anatomija djelomično ispitana. Prvi zapis o nalazima Zospeuma u Hrvatskoj objavio je proslavljeni malaholog Spiridon Brusina, na temelju materijala prikupljenog sredinom 19. stoljeća. Ovaj je ujedno bio i prvi zapis o puževima troglobiontima u Hrvatskoj. Z. Isselianum je općenito raširena vrsta u sjeverozapadnom dijelu Hrvatska. Njegov nalaz u Cerjanskoj špilji kod Varaždina pokazuje da su njegova staništa nalaze u središnjem dijelu zemlje. Znatan broj novih nalaza nedavno je dodan brojnim lokalitetima u kojima su Bole i Velkovrh pronašli ovu vrstu. Z. likanum je endemska vrsta u Hrvatskoj. Dugo je to bilo poznato samo iz špilja u okolici Gračaca (BOLE 1974). Novi staništa u blizini Rakovice i Ogulina proširila su područje širenja prema sjeveru, sve do granice sa Slovenijom. Primjerci ove vrste nigdje se ne pojavljuje u velikom broju. U bivšoj Jugoslaviji, Bole, Kuščer i Velkovrh pronašli su vrstu Z. amoenum u špiljama na otoku Krku, blizu Gospića, Sinja, rijeke Cetine, na otoku Braču, Biokovu, iznad Popovog polja, sjeverno od Omble, blizu Zavale i u špiljama u blizini Cetinja u Crnoj Gori. Nova staništa samo su potvrdila njegovo područje širenja, koje pokriva četiri međusobno prilično udaljena područja. Vrsta Z. kusceri u Hrvatskoj naseljavaju područje koje pokriva sjeveroistočni dio Istre i Gorskog kotara. U najnovijim istraživanjima, pronađeno je i na otoku Cresu, prvom otočnom nalazištu ove vrste. Vrsta Z. subobesum česta je u špiljama u okolici Ogulina, gdje je i špilja Tounjčica, njezino tipsko stanište. Na temelju samo jedne kućice vrsta je utvrđena i u Lukinoj jami te u Vrelu kod Fužina, koja se nalaze jugozapadno i jugoistočno od Ogulina. Z. spelaeum schmidti naseljava cijelu Istru iako su pojedina staništa prilično udaljena jedno od drugoga. Vrsta Z. pretneri usko je endemska u kontekstu faune Hrvatske. Znana je samo iz Donje Cerovačke špilje (Lok. Tip.), Gornja Cerovačka špilja kod Gračaca, Pelinska špilja kod Mogorića i Slovačka jama na Velebitu. U posljednjih trideset godina vrste Zospeum otkrivene su u novoistraženim speleološkim objektima, uglavnom neistraženog krškog područja u središnjim Dinaridima. Područja širenja pojedinih vrsta preklapaju se u nekim speleološkim objektima i različite vrste mogu se naći prilično često zajedno
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Variations on the Author
Get PDF“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
Get PDFWe 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
Get PDFWe 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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe 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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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