نتایج جستجو برای: bifurcate hairs

تعداد نتایج: 4060  

2016
Walter F. Rowe

Head hairs from a 19-year-old female murder victim, who had been buried for 36 years, were examined by scanning electron microscopy (SEM) and transmitted light microscopy. The hairs exhibited a range of biodeterioration artifacts. In some areas on the hairs, the cuticular scales were intact; in others, scales had become loosened; and in yet other areas, scales had been completely lost, exposing...

2015
Qiuheng Lu Dorothy A. Schafer Paul N. Adler

The evolutionarily conserved frizzled/starry night ( fz/stan) pathway regulates planar cell polarity (PCP) in vertebrates and invertebrates. This pathway has been extensively studied in the Drosophila wing, where it is manifested by an array of distally pointing cuticular hairs. Using in vivo imaging we found that, early in hair growth, cells have multiple actin bundles and hairs that subsequen...

2004
Poramate Manoonpong Frank Pasemann Joern Fischer

Spiders can sense sounds in a frequency range between approximately 40 and 600 Hz by the use of hairs; they can detect e.g. the puff of wind of buzzing flies. On the contrary, scorpions use hairs as tactile sensors for obstacle avoidance. To integrate the advantages of both types of sensoric hairs, this article presents an artificial auditory-tactile sensor system, which combines the principles...

Journal: :Journal of chromatography. B, Analytical technologies in the biomedical and life sciences 2005
Emi Suenaga Hiroshi Nakamura

In this paper we evaluate three different methods for extracting DNA from human hair i.e. the Chelex method, the QIAamp DNA Mini Kit method and the ISOHAIR method. Analysis of DNA prepared from dyed hairs with the ISOHAIR method suggested that the DNA extracts contained PCR inhibitors. On the other hand, few inhibition was observed when DNA from dyed hairs were extracted using the Chelex method...

2017
Adriana Rakowska Małgorzata Olszewska Lidia Rudnicka

INTRODUCTION Scalp dysesthesia is characterized by localized pruritus, burning sensations or even pain. AIM To describe characteristic trichoscopic features of scalp dysesthesia. MATERIAL AND METHODS The study was a retrospective analysis (2010-2016) of 9 patients (8 females and 1 male; median age: 52 years; range: 38-66 years). A total of 61 trichoscopic images were analyzed by two indepen...

2013
Dietrich W erner Andreas Bernd Wolff

Dietrich W erner and Andreas Bernd Wolff Fachbereich Biologie, Botanisches Institut der Philipps-Universität Marburg, Karl-v.-Frisch­ straße, D-355 Marburg-L, Bundesrepublik Deutschland Z. Naturforsch. 42c, 537—541 (1987); received October 7, 1986 Glycine max, Root Hairs, Roots, Specific Proteins, Infection In root hairs from seedlings of Glycine max cultivars, isolated from the root system and...

2015
Qiuheng Lu Dorothy A. Schafer Paul N. Adler

The evolutionarily conserved frizzled/starry night ( fz/stan) pathway regulates planar cell polarity (PCP) in vertebrates and invertebrates. This pathway has been extensively studied in the Drosophila wing, where it is manifested by an array of distally pointing cuticular hairs. Using in vivo imaging we found that, early in hair growth, cells have multiple actin bundles and hairs that subsequen...

2007
Sergei Dubovsky Peter Tinyakov Matias Zaldarriaga

We consider black holes in Lorentz violating theories of massive gravity. We argue that in these theories black hole solutions are no longer universal and exhibit a large number of hairs. If they exist, these hairs probe the singularity inside the black hole providing a window into quantum gravity. The existence of these hairs can be tested by future gravitational wave observatories. We generic...

2014
Sven Woop Carsten Benthin Ingo Wald Gregory S. Johnson Eric Tabellion

Hair and fur typically consist of a large number of thin, curved, and densely packed strands which are difficult to ray trace efficiently. A tight fitting spatial data structure, such as a bounding volume hierarchy (BVH), is needed to quickly determine which hair a ray hits. However, the large number of hairs can yield a BVH with a large memory footprint (particularly when hairs are pre-tessell...

Journal: :Proceedings. Biological sciences 2014
Silvana R Tridico Sandra Koch Amy Michaud Gordon Thomson K Paul Kirkbride Michael Bunce

Although the taphonomic (post-mortem) degradation processes relevant to teeth and bones have been well described, those taking place with regards to mammalian hairs have not been characterized to the same extent. This present article describes, in detail, microscopic changes resulting from the actions of biological agents that digest and degrade hairs. The most noteworthy and prevalent agents r...

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