PeerJ PrePrints - where science is heading

6 downloads
5 views

Purpose: This study tested the null hypothesis that different classes of direct restorative dental materials (silorane-based resin, low-shrinkage and conventional (non-flowable and flowable) resin-based composite (RBC)) do not differ from each other with regard...

["Dentistry"]
doi:10.7287/peerj.preprints.875v1
4 downloads
5 views

Background. Neochelys franzeni (Schelich, 1993) is the only pleurodire or side-necked turtle from the middle Eocene, Messel Pit (the first UNESCO, World Natural Heritage Site in Germany, since 1995). The original description of the species is based on two specimens...

["Biodiversity","Evolutionary Studies","Paleontology","Taxonomy","Zoology"]
doi:10.7287/peerj.preprints.874v1
8 downloads
12 views

Background. A new podocnemidid taxon from the Adamantina Formation (Campanian to Maastrichtian), Bauru Group - Paraná Basin (southeastern Brazil) is presented. Some multifragmented specimens were discovered near 30 years ago, in the region of Álvarez Machado (State...

["Paleontology","Zoology"]
doi:10.7287/peerj.preprints.873v1
12 downloads
10 views

The aim of this investigation is to evaluate a new method for blur elimination caused by rotational motion of any object, assuming that the center and the angle of the rotation are known. In this new method, which is called Enhanced Rotational De-convolution Conjugate...

["Computer Vision","Software Engineering"]
doi:10.7287/peerj.preprints.872v1
19 downloads
10 views

The association of species distribution and environmental variables is often complex, with nonlinear and interacting effects. Bayesian hierarchical models can quantify linear and high order effects of the variables, as well as their interaction effects. Their strength...

["Biogeography","Conservation Biology","Ecology","Statistics"]
doi:10.7287/peerj.preprints.871v1
8 downloads
7 views

Background. Studies on the geographic variation of the matamata, Chelus fimbriatus, have previously demonstrated differences between carapace shape, plastral pigmentation and the ventral coloration of the neck between populations from the Amazon and Orinoco river...

["Biodiversity","Taxonomy","Zoology"]
doi:10.7287/peerj.preprints.870v1
5 downloads
2 views

Background : After menopause women experience a markedly increased risk of cardiovascular events due to the loss of estrogen. As estrogen replacement is associated with negative side effects, a more attractive alternative to help maintain a good cardiovascular...

["Anatomy and Physiology","Women's Health"]
doi:10.7287/peerj.preprints.869v1
18 downloads
61 views

Software piracy is the most significant and burning issue in the age of the internet. Software piracy has been a direct threat for software vendors in terms of revenue and, therefore, a number of effective and efficient techniques have been employed for the detection...

["Algorithms and Analysis of Algorithms","Emerging Technologies","Security and Privacy","Programming Languages","Software Engineering"]
doi:10.7287/peerj.preprints.868v1
13 downloads
39 views

Jellyfish are highly topical within studies of pelagic food-webs and there is a growing realisation that their role is more complex than once thought. Efforts being made to include jellyfish within fisheries and ecosystem models are an important step forward, but...

["Ecology","Marine Biology"]
doi:10.7287/peerj.preprints.867v1
19 downloads
29 views

Bacterial populations transition between growing and non-growing phases, based on nutrient availability and stress conditions. The hallmark of a growing state is anabolism, including DNA replication and cell division. In contrast, bacteria in a growth-arrested...

["Bioinformatics","Computational Biology","Microbiology","Synthetic Biology"]
doi:10.7287/peerj.preprints.866v1
8 downloads
10 views

Little is known about mechanisms promoting the diversity of antipredation strategies found in nature. In this study I explore how habitat heterogeneity may have profound effects on predator–prey communication. Habitat heterogeneity inevitably increases background...

["Animal Behavior","Biodiversity","Ecology","Evolutionary Studies","Zoology"]
doi:10.7287/peerj.preprints.865v1
92 downloads
219 views

Comparing inferences among datasets generated using short read sequencing may provide insight into the concerted effects of evolutionary processes across organisms, but comparisons are complicated by biases introduced during dataset assembly. Sequence similarity...

["Bioinformatics","Evolutionary Studies","Genetics","Genomics","Molecular Biology"]
doi:10.7287/peerj.preprints.864v1
49 views

Background. Solemydidae is an enigmatic clade of stem turtles, which is primarily represented by fragmentary shell material found in Upper Jurassic and Cretaceous deposits of Europe and North America. Specimens are typically identified by a distinct surface ornamentation...

["Paleontology"]
doi:10.7287/peerj.preprints.863v1
29 views

Background. Large-sized testudinids had a long evolutionary history in Europe during the last 50 million years before becoming extinct in the beginning of the Pleistocene. Despite a 150-year long history in research and a decent fossil record, the European large...

["Paleontology"]
doi:10.7287/peerj.preprints.862v1
18 downloads
15 views

Adaptation to pollinators is a key factor of diversification in angiosperms. The Caribbean sister genera Rhytidophyllum and Gesneria present an important diversification of floral characters. Most of their species can be divided in two major pollination syndromes....

["Biodiversity","Evolutionary Studies","Genetics","Plant Science"]
doi:10.7287/peerj.preprints.861v1

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A PeerJ 'PrePrint' is a draft that has not yet been peer reviewed for formal publication. Similar to preprint servers that already exist (for example arXiv.org), authors can submit draft, incomplete, or final versions of articles they are working on.

By using this service, authors establish precedent; they can solicit feedback, and they can work on revisions of their manuscript. Once they are ready, they can submit their PrePrint manuscript into the peer reviewed PeerJ journal (although it is not a requirement to do so).

Submissions today can be approved by editorial staff and online within 24 hours.