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TRANSACTIONS of the Kansas Academy of Science
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TRANSACTIONS of the Kansas Academy of Science

Vol. 122, no. 1-2 p. 1-18 (2019)
The Ptychodontidae Jaekel 1898, is one of the most confusing and fascinating shark families of the Cretaceous. Ptychodus is a durophagous shark genus (Elasmobranchii, Ptychodontidae) which occurs in Albian-Campanian marine deposits of Europe, North and South America, Asia, northern and western Africa (Cappetta 2012).

Social Sciences in China
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Social Sciences in China

Vol.40 / No.1 / 2019 Feb.
Social Sciences in China is a peer-reviewed journal of the Chinese Academy of Social Sciences. It is published four times a year (in February, May, August and November) by Social Sciences in China Press and Taylor & Francis, an Informa business, 4 Park Square, Milton Park, Abingdon, Oxfordshire 0X14 4RN, UK.
The journal is supported by Chinese Fund for the Humanities and Social Sciences

biblioasia
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biblioasia

ЖИ 3108/2019 y./Vol. 15/ Issue 01
The Archives Issue
This special edition of BiblioAsia puts the spotlight on all things archives. In his op-ed, Dr Shashi Jayakumar describes how recent initiatives undertaken by the NAS prepare the organisation - as well as Singapore - for the future.

Transactions of the Kansas Academy of Science
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Transactions of the Kansas Academy of Science

The most commonly used index of influenza activity historically has been mortality due to pneumonia and influenza (P&I), which is complicated by factors such as the coding for P&I mortality on death certificates having changed through time, as has the ability of physicians to diagnose these conditions.

Systematic Palaeontology
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Systematic Palaeontology

Journal of Systematic Palaeontology strives to maintain the highest possible ethical standards in research and our existing policies state that we will not consider contributions containing material “that is abusive, defamatory, libellous, obscene, fraudulent, or illegal”. In addition, we also maintain that specimens described within the journal should be held in publicly-accessible repositories, in order to maximize reproducibility. This further implies that the specimens held by these repositories have been subjected to appropriate standards of legal due diligence and ethical practice.