Pyramidal cells are characterized by markedly different sized dendritic trees, branching patterns, and spine density across the cortical mantle. Moreover, pyramidal cells have been shown to differ in structure among homologous cortical areas in different species; however, most of these studies have been conducted in primates. Whilst pyramidal cells have been quantified in a few cortical areas i...

The consumption of drugs of abuse provokes sensitization, the development of tolerance, dependency, and eventually addiction. It is thought that these events are partially a consequence of drug-induced alterations in the organization of neuronal circuits in specific areas of the brain. In the present study, we have used intracellular injections of lucifer yellow to examine the alterations that ...

Visualizing molecular transformations in real-time requires a structural retrieval method with Ångström spatial and femtosecond temporal atomic resolution. Imaging of hydrogen-containing molecules additionally an imaging sensitive to the positions hydrogen nuclei, most methods possessing relatively low sensitivity scattering. Laser-induced electron diffraction (LIED) is table-top technique that...

Recent studies have revealed striking differences in pyramidal cell structure among cortical regions involved in the processing of different functional modalities. For example, cells involved in visual processing show systematic variation, increasing in morphological complexity with rostral progression from V1 through extrastriate areas. Differences have also been identified between pyramidal c...

Using hand-collected data, we study the evolution, causes, and economic effects of the pyramidal ownership structure in China’s listed firms over 2001-2008. We quantitatively characterize the use of pyramidal structure by private firms and local state controlled firms. We find that private owners in China show strong incentives to build more extensive pyramids in weak institutional environments...

Visual inspection of concrete structures using Unmanned Areal Vehicle (UAV) imagery is a challenging task due to the variability defects’ size and appearance. This paper proposes high-performance model for automatic fast detection bridge defects UAV-acquired images. Our method, coined Saliency-based Multi-label Defect Detector (SMDD-Net), combines pyramidal feature extraction attention through ...

This paper aims to introduce a novel efficient approach for high-quality and fast image restoration by combining a greedy strategy and a global optimization strategy based on a pyramidal representation of the image. A coarse version of the input image is first restored by exemplar-based method using a greedy strategy. From the low-resolution inpainted image, higher resolutions are interpolated ...

colchicine, a potent neurotoxin derived from plants, has been recently introduced as a degenerative toxin of small pyramidal cells in the cortical area 1 of the hippocampus (ca1). in this study, the effect of the alkaloid in ca1 on the behaviors in the conditioning task was measured. injections of colchicine (1,5 μg/rat, intra-ca1) was performed in the male wistar rats, while the animals were s...

We study the problem of robust human detection. In this paper, a new descriptor, Pyramidal Statistics of Oriented Filtering (PSOF), is proposed for human shape representation. Unlike traditional one-scale gradient-based methods, the PSOF descriptor utilizes a Gabor filter bank to obtain multi-scale pixel-level orientation information and makes use of locally normalized pyramidal statistics of t...