scholarly journals Optical 3D scanning methods in biological research – selected cases

2021 ◽  
Vol 20 (1) ◽  
pp. 3-14
Author(s):  
Sławomir Paśko ◽  
Keyword(s):  
The Body ◽  
Optical Methods ◽  
Biological Research ◽  
Polar Coordinate System ◽  
Process Data ◽  
Measurement Systems ◽  
3D Space ◽  
First Case ◽  
Polar Coordinate ◽  
Cloud Of Points

Shape measurement by optical methods is more and more often used in research both in human and veterinary medicine. As a result of the measurement, a set with marker positions in space or a cloud of points representing a scanned surface is obtained. The collected data contains useful information, but to extract it, it is necessary to process the data using appropriate algorithms. The aim of this study was to present the algorithms that the author used to process data for the purposes of analyzes which results and conclusions were included in four articles published earlier. The algorithms concern the determination and identification of markers on the body when measuring the posture of soccer players and the analysis of the cloud of points for determining the angles describing the base and surface of the hoof bones in the polar coordinate system. The measurement systems in which data were collected are also described. Sample results obtained with the presented analysis methods are shown. For the first case these are given directional views of the markers determined in 3D space, while for the other two the result containing information about the calculated angles in the form of a table and a graph are presented. The presented data processing methods and algorithms are not only applicable to the cases on which they were tested. Directly or after a small modification, they can be applied in another area.

Review of the Applications of Deep Learning in Bioinformatics

2021 ◽  
Vol 15 (8) ◽  
pp. 898-911
Author(s):  
Yongqing Zhang ◽  
Jianrong Yan ◽  
Siyu Chen ◽  
Meiqin Gong ◽  
Dongrui Gao ◽  
...  
Keyword(s):  
Deep Learning ◽  
Drug Discovery ◽  
Biomedical Imaging ◽  
State Of The Art ◽  
Black Box ◽  
Medical Data ◽  
Biological Data ◽  
High Dimensional ◽  
Biological Research ◽  
Process Data

Rapid advances in biological research over recent years have significantly enriched biological and medical data resources. Deep learning-based techniques have been successfully utilized to process data in this field, and they have exhibited state-of-the-art performances even on high-dimensional, nonstructural, and black-box biological data. The aim of the current study is to provide an overview of the deep learning-based techniques used in biology and medicine and their state-of-the-art applications. In particular, we introduce the fundamentals of deep learning and then review the success of applying such methods to bioinformatics, biomedical imaging, biomedicine, and drug discovery. We also discuss the challenges and limitations of this field, and outline possible directions for further research.

Natural Frequencies and Mode Shapes of Elliptic Plates With Boundary Characteristic Orthogonal Polynomials As Assumed Shape Functions

1991 ◽  
Author(s):  
C. Rajalingham ◽  
R. B. Bhat ◽  
G. D. Xistris
Keyword(s):  
Coordinate System ◽  
Orthogonal Polynomials ◽  
Natural Frequencies ◽  
Ritz Method ◽  
Mode Shapes ◽  
Polar Coordinate System ◽  
Free Boundaries ◽  
Natural Modes ◽  
Polar Coordinate ◽  
Boundary Characteristic

Abstract The natural frequencies and natural modes of vibration of uniform elliptic plates with clamped, simply supported and free boundaries are investigated using Rayleigh-Ritz method. A modified polar coordinate system is used to investigate the problem. Energy expressions in Cartesian coordinate system are transformed into the modified polar coordinate system. Boundary characteristic orthogonal polynomials in the radial direction, and trigonometric functions in the angular direction are used to express the deflection of the plate. These deflection shapes are classified into four basic categories, depending on its symmetrical or antisymmetrical property about the major and minor axes of the ellipse. The first six natural modes in each of the above categories are presented in the form of contour plots.

Feeding gastrostomy stoma site cutaneous myiasis: a rare entity

2021 ◽  
Vol 14 (7) ◽  
pp. e244352
Author(s):  
Snehasis Das ◽  
Naveen Kumar Gaur ◽  
Oseen Hajilal Shaikh ◽  
Uday Shamrao Kumbhar
Keyword(s):  
Medical History ◽  
Percutaneous Endoscopic Gastrostomy ◽  
Metastatic Carcinoma ◽  
The Body ◽  
Rare Entity ◽  
Stoma Site ◽  
Endoscopic Gastrostomy ◽  
First Case ◽  
Cutaneous Myiasis

Infestation of any dead or necrotic tissues by the larvae of flies (maggots) is myiasis. This form of habitation is not restricted to any particular tissues in the body and can occur anywhere. However, myiasis at the surgical stoma site is very rare. We present a 55-year-old woman diagnosed with metastatic carcinoma of the oesophagus who underwent feeding gastrostomy (FG). The patient later presented with worms at the FG site. We removed the FG tube, cleared all the maggots, thoroughly cleaned the wound and placed a new FG tube. Although its occurrences have been reported enough in medical history, there are only two documented cases of percutaneous endoscopic gastrostomy stoma site myiasis. Hence, we present the first case in the literature of cutaneous myiasis around an FG stoma site.

scholarly journals Pulmonary Fibrosis after Pegylated Liposomal Doxorubicin in Elderly Patient with Cutaneous Angiosarcoma

2016 ◽  
Vol 2016 ◽  
pp. 1-5 ◽  
Author(s):  
Marco Mazzotta ◽  
Raffaele Giusti ◽  
Daniela Iacono ◽  
Salvatore Lauro ◽  
Paolo Marchetti
Keyword(s):  
Elderly Patient ◽  
Case Report ◽  
Pulmonary Fibrosis ◽  
Pulmonary Toxicity ◽  
Liposomal Doxorubicin ◽  
Pegylated Liposomal Doxorubicin ◽  
The Body ◽  
Rare Cancer ◽  
True Incidence ◽  
First Case

Introduction. Angiosarcoma is a rare cancer of the inner lining of blood vessels and can arise anywhere in the body, most commonly presenting as cutaneous disease in elderly patient, involving head and neck (H&N), especially the scalp. Pegylated liposomal doxorubicin (PLD) is one of the available treatments in patients with advanced or metastatic disease. Common toxicities are myelosuppression, palmar-plantar erythrodysesthesia, nausea, and stomatitis. Regarding PLD-related pulmonary fibrosis in an uncommon toxicity, there are few cases reported in literature. None of these occurred in angiosarcoma.Methods. This is a case report describing an elderly patient treated with PLD for advanced H&N cutaneous angiosarcoma who developed G5 pulmonary toxicity after the second PLD administration.Results. According to our data and patient clinical outcome, we believe that she passed away from fatal PLD-induced pulmonary fibrosis. This is the first case of fatal interstitial pneumonitis in a 77-year-old woman treated with PLD for angiosarcoma. The case has been reported for its rarity.Conclusions. Pathophysiology of this phenomenon is still unclear and more studies are necessary to understand the true incidence of pulmonary toxicities in patients in treatments with PLD and its mechanism.

scholarly journals Aerosol Plume Detection Algorithm Based on Image Segmentation of Scanning Atmospheric Lidar Data

2016 ◽  
Vol 33 (4) ◽  
pp. 697-712 ◽  
Author(s):  
R. Andrew Weekley ◽  
R. Kent Goodrich ◽  
Larry B. Cornman
Keyword(s):  
Coordinate System ◽  
Original Data ◽  
Detection Algorithm ◽  
Polar Coordinate System ◽  
Lidar Data ◽  
Image Processing Algorithm ◽  
Polar Coordinate ◽  
Scanning Lidar ◽  
Performance Statistics ◽  
Background Fields

AbstractAn image-processing algorithm has been developed to identify aerosol plumes in scanning lidar backscatter data. The images in this case consist of lidar data in a polar coordinate system. Each full lidar scan is taken as a fixed image in time, and sequences of such scans are considered functions of time. The data are analyzed in both the original backscatter polar coordinate system and a lagged coordinate system. The lagged coordinate system is a scatterplot of two datasets, such as subregions taken from the same lidar scan (spatial delay), or two sequential scans in time (time delay). The lagged coordinate system processing allows for finding and classifying clusters of data. The classification step is important in determining which clusters are valid aerosol plumes and which are from artifacts such as noise, hard targets, or background fields. These cluster classification techniques have skill since both local and global properties are used. Furthermore, more information is available since both the original data and the lag data are used. Performance statistics are presented for a limited set of data processed by the algorithm, where results from the algorithm were compared to subjective truth data identified by a human.

scholarly journals Sepakbola: Kapasitas Vital Paru dan Tingkat Kebugaran Jasmani

2020 ◽  
Vol 5 (1) ◽  
pp. 30-39
Author(s):  
Rusmanto ◽  
Rola Angga Lardika ◽  
Novri Gazali
Keyword(s):  
Physical Fitness ◽  
Blood Vessels ◽  
Vital Capacity ◽  
The Body ◽  
Process Data ◽  
Fitness Level ◽  
Physiological Conditions ◽  
The Status ◽  
T Distribution

Lung vital capacity is the status of physiological conditions associated with the ability to treat respiration together with the increasing of physical fitness, so lung vital capacity is a process involving the mechanism of the heart and blood vessels and blood which aims to provide O2 to cells in the body and transport CO2 out of body. The purpose of this study is to determine the correlation between lung vital capacity and the physical fitness level of Pendor Football Athletes from Universitas Riau. The collecting of data in this study is data from lung vital capacity tests and physical fitness with a sample of 20 athletes. Analysis of the data that used to process data is Product Moment correlation. For determining the significance of data, it uses formulation of t distribution. The results that obtained from lung vital capacity have a significant correlation with the level of physical fitness, this is indicated by the results obtained by r count (0622) > r table (α = 0.05) = 0.456. Meanwhile, t distribution test is obtained the result of t count (3,369) > t  table (1,734). So H0 is refused  and Ha is accepted. Thus it can be concluded that there is a significant correlation between the lung vital capacity (x) and the level of physical fitness (y).

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