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The adsorption of the chiral molecule lactic acid on chiral Pt surfaces is studied by Density Functional Theory calculations. First we study the adsorption of L-lactic acid on the flat Pt(111) surface. Using the oPBE-vdW functional which…

Materials Science · Physics 2013-10-04 Jörn-Holger Franke , Daniel S. Kosov

The absorption characteristics of Cr(III), Cr(VI), Cu(II) ions on intact living cells Spirulina platensis (pH9.6) were studied by using a UV-VIS spectrophotometer. Also biosorption of these ions with cyanobacteria Spirulina platensis were…

Biological Physics · Physics 2017-06-19 E. Gelagutashvili , N. Bagdavadze , A. Rcheulishvili

Interstellar dust plays a central role in the evolution of galaxies by shaping star formation, altering observed stellar properties, and redistributing radiation across the electromagnetic spectrum. In the Milky Way, dust is concentrated in…

Astrophysics of Galaxies · Physics 2025-09-19 H. -L. Guo , B. -Q. Chen , H. -B. Yuan , X. -W. Liu

Vision Transformer (ViT) architectures are becoming increasingly popular and widely employed to tackle computer vision applications. Their main feature is the capacity to extract global information through the self-attention mechanism,…

Computer Vision and Pattern Recognition · Computer Science 2024-05-06 Lorenzo Papa , Paolo Russo , Irene Amerini , Luping Zhou

The deformability of vesicles critically influences their engulfment by lipid membranes, a process central to endocytosis, viral entry, drug delivery, and intercellular transport. While theoretical models have long predicted this influence,…

Soft Condensed Matter · Physics 2025-07-24 Stijn van der Ham , Alexander Brown , Halim Kusumaatmaja , Hanumantha Rao Vutukuri

Grid cells in medial entorhinal cortex are believed to play a key role in path integration. However, the relation between path integration and the grid-like arrangement of their firing field remains unclear. We provide theoretical evidence…

Neural and Evolutionary Computing · Computer Science 2016-06-06 Reza Moazzezi

Can three-dimensional, microvasculature networks still ensure blood supply if individual links fail? We address this question in the sinusoidal network, a plexus-like microvasculature network, which transports nutrient-rich blood to every…

It is well known that dietary habits have a significant influence on health. While many studies have been conducted to understand this relationship, little is known about the relationship between eating environments and health. Yet…

Computer Vision and Pattern Recognition · Computer Science 2019-11-12 Sri Kalyan Yarlagadda , Sriram Baireddy , David Güera , Carol J. Boushey , Deborah A. Kerr , Fengqing Zhu

Lattice structures have been widely used in various applications of additive manufacturing due to its superior physical properties. If modeled by triangular meshes, a lattice structure with huge number of struts would consume massive…

Computational Geometry · Computer Science 2021-02-02 Shengjun Liu , Tao Liu , Qiang Zou , Weiming Wang , Eugeni L. Doubrovski , Charlie C. L. Wang

Rapidly dividing tissues, like intestinal crypts, are frequently chosen to investigate the process of tumor initiation, because of their high rate of mutations. To study the interplay between normal and mutant as well as immortal cells in…

Tissues and Organs · Quantitative Biology 2016-11-09 Ali Mahdipour Shirayeh , Leili Shahriyari

Recent advances in capsule endoscopy systems have introduced new methods and capabilities. The capsule endoscopy system, by observing the entire digestive tract, has significantly improved diagnosing gastrointestinal disorders and diseases.…

Computer Vision and Pattern Recognition · Computer Science 2018-02-23 Atefe Rajaeefar , Ali Emami , S. M. Reza Soroushmehr , Nader Karimi , Shadrokh Samavi , Kayvan Najarian

Learning and memory may rely on the ability of neuronal circuits to reorganize by dendritic spine remodeling. We have looked for geometrical parameters of cortical circuits, which maximize information storage capacity associated with this…

Biological Physics · Physics 2007-05-23 Armen Stepanyants

We show the impact that scalar structures deformation and mixing has on the fate of plumes of waterborne contaminant transported through a chemically heterogeneous, partially adsorbing porous medium. Via pore-scale simulations, we follow…

Fluid Dynamics · Physics 2023-02-15 Dario Maggiolo , Oskar Modin , Angela Sasic Kalagasidis

The primary structures of peptides, originating from food proteins, affect their taste. Connecting primary structure to taste, however, is difficult because the size of the peptide sequence space increases exponentially with increasing…

Chemical Physics · Physics 2022-11-23 Arghya Dutta , Tristan Bereau , Thomas A. Vilgis

We study characteristics of receptive fields of units in deep convolutional networks. The receptive field size is a crucial issue in many visual tasks, as the output must respond to large enough areas in the image to capture information…

Computer Vision and Pattern Recognition · Computer Science 2017-01-26 Wenjie Luo , Yujia Li , Raquel Urtasun , Richard Zemel

Lung nodules suffer large variation in size and appearance in CT images. Nodules less than 10mm can easily lose information after down-sampling in convolutional neural networks, which results in low sensitivity. In this paper, a combination…

Computer Vision and Pattern Recognition · Computer Science 2018-08-02 Benyuan Sun , Zhen Zhou , Fandong Zhang , Xiuli Li , Yizhou Wang

In this paper, we present our approach for the 2018 Medico Task classifying diseases in the gastrointestinal tract. We have proposed a system based on global features and deep neural networks. The best approach combines two neural networks,…

This paper presents the development of a vascularized breast tumor and healthy or tumorigenic liver microenvironments-on-a-chip connected in series. This is the first description of a vascularized multi tissue-on-a-chip microenvironment for…

Tissues and Organs · Quantitative Biology 2018-11-29 Alican Ozkan , Neda Ghousifam , P. Jack Hoopes , Marissa Nichole Rylander

Efficient uptake of nutrients from the environment is an important component in the fitness of all microorganisms, and its dependence on size may reveal clues to the origins of evolutionary transitions to multicellularity. Because potential…

Soft Condensed Matter · Physics 2016-11-09 Julius B. Kirkegaard , Raymond E. Goldstein

In this paper we study the effects of inclusions and porosities on the emission properties of silicate grains and compare the model curves with the observed infrared emission from circumstellar dust. We calculate the absorption efficiency…

Solar and Stellar Astrophysics · Physics 2015-03-17 D. B. Vaidya , Ranjan Gupta
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