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A Novel Method for Localizing Nerve Entry Points During Spasticity Treatment International Journal of Morphology
Yang,Shengbo; Hu,Shuangjiang; Tian,Xufeng; Hu,Shuaiyu.
The nerve entry points (NEPs) cannot be accurately localized for the treatment of muscle spasticity in neurolysis. The aim of this study was to develop a new method of accurately localizing nerve entry points in relation to bony landmarks. NEPs in human cadavers were coated with barium sulfate. Method 1 consisted of horizontal and longitudinal reference lines being designated based on bony landmarks, followed by radiography and measurements using picture archiving and communication system software. Method 2 involved sewing the barium sulfate-soaked suture thread into the skin to designate the horizontal and longitudinal reference lines, followed by computed tomography (CT) scanning to determine the skin surface location and puncture depth for the NEPs....
Tipo: Journal article Palavras-chave: Spasticity; Nerve entry points; Anatomy; X-ray; Localization.
Ano: 2017 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000300002
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A radiographic method to estimate lung volume and its use in small mammals Biol. Res.
CANALS,MAURICIO; OLIVARES,RICARDO; ROSENMANN,Mario.
In this paper we develop a method to estimate lung volume using chest x-rays of small mammals. We applied this method to assess the lung volume of several rodents. We showed that a good estimator of the lung volume is: V*L = 0.496 · V RX ≈ 1/2·V RX , where V RX is a measurement obtained from the x-ray that represents the volume of a rectangular box containing the lungs and mediastinum organs. The proposed formula may be interpreted as the volume of an ellipsoid formed by both lungs joined at their bases. When that relationship was used to estimate lung volume, values similar to those expected from allometric relationship were found in four rodents. In two others, M. musculus and R. norvegicus, lung volume was similar to reported data, although...
Tipo: Journal article Palavras-chave: Lung volume; X-ray; Method; Rodents.
Ano: 2005 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602005000100006
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Comparative Bilateral Bone Density of the Mandible Angle International Journal of Morphology
Issa,Joáo Paulo Mardegan; Tiossi,Rodrigo; Catirse,Alma Blásida Concepción Elizaur Benitez; Monteiro,Solange Aparecida Caldeira; Watanabe,Plauto Christhopher Aranha.
The aim of this study was to assess a bilateral comparison of the mandible density in both sex young patients with computer densitometry. Fifty panoramic radiographs were obtained from young patients with ages between 18 and 23 years old (group A = 25 female and group B = 25 male) standardized, using the same X-Ray equipment (Siemens, lOKvp, 7mA), scanned with a 282.110 pixels resolution, and transferred later to a computer and using the SIDEXIS (Sirona, USA) program to analyze the bone densitometry performance. Bilateral sites were standardized with the objective to measure the bone density. Obtained data were registered and submitted to statistical analysis. The following means and standard deviations were obtained, in pixels, for the right and the left...
Tipo: Journal article Palavras-chave: Bone density; Mandible; Panoramic; X-ray; Radiography.
Ano: 2007 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022007000200016
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Elemental composition of individual pico- and nano-sized marine detrital particles in the northwestern Mediterranean Sea ArchiMer
Mostajir, B; Fagerbakke, Km; Heldal, M; Thingstad, Tf; Rassoulzadegan, F.
The elemental composition of individual < 10 mu m detrital particles from Mediterranean surface waters was analysed using a Transmission Electron Microscope (TEM) equipped with an energy dispersive X-Ray microanalyser. Results show that carbon and phosphorus content per detritus volume are much higher in pico-detrital particles < 2 mu m (42 kg C m(-3) and 1 kg P m(-3)) than in 5-10 mu m detrital particles (20 kg C m-3 and 0.1 kg P m(-3)). The C:N:P atomic ratios for different sized fractions of the detrital particles were found to be 82:10:1 for < 2 mu m particles, 120:29:1 for 2-5 mu m particles and 308:37:1 for 5-10 mu m particles. The average ratio for all size classes of detrital particles (< 10 mu m) was 132:23:1. The differences in...
Tipo: Text Palavras-chave: Détritus; Composition élémentaire; Microscope électronique à transmission; Rayons X; Méditerranée; Detritus; Elemental composition; TEM; X-ray; Mediterranean.
Ano: 1998 URL: http://archimer.ifremer.fr/doc/00325/43661/43208.pdf
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Establishment of patient-derived tumor xenograft (PDTX) models using samples from CT-guided percutaneous biopsy BJMBR
Zhuang,Y.-P.; Zhu,Y.-P.; Wang,H.-Y.; Sun,L.; Zhang,J.; Hao,Y.-P.; Wang,L..
This study aimed to investigate the feasibility of the establishment of a human cancer xenograft model using samples from computed tomography (CT)-guided percutaneous biopsy. Fresh tumor tissues obtained from 10 cancer patients by CT-guided percutaneous biopsy were subcutaneously inoculated into NOD-Prkdcem26Il2rgem26Nju (NCG) mice to establish human patient-derived tumor xenograft (PDTX) models. The formation of first and second generation xenografts was observed, and tumor volume was recorded over time. Tumor tissue consistency between the PDTX model and primary tumors in patients was compared using H&E staining and immunohistochemistry. Pharmacodynamic tests of clinically used chemotherapeutic drugs were conducted on second generation xenografts,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cancer; Patient-derived tumor xenografts (PDTX); Computed tomography; X-ray; Percutaneous biopsy; Mouse models.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017000600705
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Germination of parsley seeds influenced by mericarps color and internal morphology Horticultura Brasileira
Oliveira,Sueyde F de; Costa,Denis S da; Mello,Simone da C; Novembre,Ana Dionisia da LC; Gomes-Junior,Francisco G.
The objective of the present study was to establish a relationship between mericarps color and internal morphology of parsley with the germination, using sorting by coloration and the X-ray test. The completely randomized design was used, with four replications per treatment. The treatments were constituted of four lots (A, B, C and D) and three mericarps colors (green, yellow and black) in 4×3 factorial experiment. The mericarps were exposed to X-ray test (60s; 20kV), being used the digital equipment Faxitron X-ray, model MX-20 DC12 and then, the irradiated mericarps were submitted to the germination test. The yellow mericarps showed higher germination and speed germination index. The green mericarps showed deformations and impaired formation of embryo,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Petroselinum crispum; X-ray; Seed analysis; Sorting by coloration.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362013000200009
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Radiographic analysis in castor bean seeds (Ricinus communis L.) Rev. bras. sementes
Carvalho,Maria Laene Moreira de; Alves,Renato Augusto; Oliveira,Luciana Magda De..
Castor bean cropping has great social and economic value, but its production has been affected by factors such as low quality seeds used for sowing. The quick and precise evaluation of seed quality by x-ray test is known as an effective method to evaluate seed lots, but little is known about the interpretation between of the type of radiographic image and the seed quality correlation. The potential of x-ray analysis as a marker of seed physiological quality and as an initial process for the implementation of the use of computer-assisted image analysis was investigated using castor bean seeds of the different cultivars. The seeds were classified according to internal morphology visualized in the radiography and subjected to the germination test, emergency...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Image analysis; X-ray; Seed quality.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222010000100019
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Radiographic images and relationship of the internal morphology and physiological potential of broccoli seeds Agronomy
Abud, Haynna Fernandes; Cícero, Silvio Moure; Gomes Junior, Francisco Guilhien.
 Image analysis using X-rays is an efficient technique for assessing the seed quality of several species, presenting itself as a rapid response method that is simple to execute, reproducible and non-destructive. Thus, this research adjusted a methodology that aims to relate the internal morphology of broccoli seeds to their physiological potential through radiographic analysis of seeds and computerized images of seedlings. The broccoli cultivars used were Piracicaba Precoce and Ramoso Santana represented by ten lots of each one. The study was conducted using X-ray imaging for seed analysis, in which the area, density and circularity measures were obtained as internal morphology characteristics of seeds. After a germination test, the seedling length was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Tecnologia de Sementes internal morphology; X-ray; Vigor; Seedling length. Análise de imagens de sementes.
Ano: 2018 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/34950
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Radiographic images and relationship of the internal morphology and physiological potential of broccoli seeds Agronomy
Abud, Haynna Fernandes; Cícero, Silvio Moure; Gomes Junior, Francisco Guilhien.
 Image analysis using X-rays is an efficient technique for assessing the seed quality of several species, presenting itself as a rapid response method that is simple to execute, reproducible and non-destructive. Thus, this research adjusted a methodology that aims to relate the internal morphology of broccoli seeds to their physiological potential through radiographic analysis of seeds and computerized images of seedlings. The broccoli cultivars used were Piracicaba Precoce and Ramoso Santana represented by ten lots of each one. The study was conducted using X-ray imaging for seed analysis, in which the area, density and circularity measures were obtained as internal morphology characteristics of seeds. After a germination test, the seedling length was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Internal morphology; X-ray; Vigor; Seedling length.; Análise de imagens de sementes.
Ano: 2018 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/34950
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Relationship between eggplant seed morphology and germination Rev. bras. sementes
Silva,Vanessa Neumann; Cicero,Silvio Moure; Bennett,Mark.
Structural differences such as abnormalities, damage and free spaces in seeds may affect germination. The aim of this study was to study the relationship between eggplant seed morphology and seed germination. Ten seed lots of the eggplant cultivar Embu were evaluated by X-ray image analysis and the germination test. Seed image analysis was performed by Image Pro Plus® software and the whole seed area and free space between the embryo and endosperm were measured. The internal seed area filled by the embryo and endosperm was calculated from the difference between the whole seed and free space areas. Based on these results and visual seed analysis, seeds were classified into three categories and information on germination was obtained for each one. X-ray...
Tipo: Info:eu-repo/semantics/article Palavras-chave: X-ray; Solanum melongena L.; Embryo.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222012000400010
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Soil bulk evaluated by X-ray microtomaography for carbon stocks. Repositório Alice
SEGNINI, A.; VAZ, C. M. P.; GUASTALI, M.; LASSO, P. R. O.; POSADAS, A.; CÁSSARO, F. A. M.; BERNARDI, A. C. de C.; MILORI, D. M. B. P.; MARTIN NETO, L..
Tipo: Separatas Palavras-chave: X-ray; Microtomography; Carbon sotck.; Soil..
Ano: 2012 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/945153
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Strain-induced crystallization in a carbon-black filled polychloroprene rubber: kinetics and mechanical cycling ArchiMer
Le Gac, Pierre Yves; Albouy, Pierre-antoine; Sotta, Paul.
It is shown in the present paper how the addition of a moderate amount of carbon black filler to a polychloroprene gum modifies the local strain state and alters the ability of the polymer to strain-crystallize. The study combines mechanical and X-ray diffraction performed during classical mechanical cycling and tensile impact tests. It highlights the fact that the strain modification induced by the filler addition is highly inhomogeneous: the crystallization behavior and the local draw ratio state are affected differently. The partial relaxation of the amorphous fraction by the strain-induced crystallization peviously evidenced in the pure gum is still present and should play a protective role. The effect of temperature on the crystallization correlates...
Tipo: Text Palavras-chave: Polychloroprene; Strain-induced crystallization; X-ray.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00488/60003/63239.pdf
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Strain-induced crystallization in an unfilled polychloroprene rubber: Kinetics and mechanical cycling ArchiMer
Le Gac, Pierre-yves; Albouy, Pierre-antoine; Petermann, Denis.
Polychloroprene rubber is often quoted as an example of strain-crystallizing elastomer; however, this fundamental property, known to impart good mechanical properties and fatigue resistance, has received much less attention in this class of compounds than natural rubber. The present paper relates systematic investigations combining mechanical and X-ray diffraction measurements. Crystallization kinetics are first investigated based on tensile impact tests. An approximately logarithmic time-dependence is found for the crystalline content and the time-constants are estimated at various temperatures. The impact of strain-induced crystallization on stress-strain curves under mechanical cycling conditions is further assessed. It is demonstrated that one main...
Tipo: Text Palavras-chave: Polychloroprene; Strain-induced crystallization; X-ray.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00433/54467/55842.pdf
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Synthesis and evaluation of coumarin derivatives against human lung cancer cell lines BJMBR
Weng,K.-G.; Yuan,Y.-L..
Series of novel coumarin derivatives [I (a–d) and II (a–d)] were successfully synthesized and their structures were determined based on infrared 1H-nuclear magnetic resonance (NMR), HRMS, and single crystal X-ray crystallography. Additionally, the new synthesized compounds were evaluated to identify the molecular characteristics that contribute to their cytotoxicity, which was tested against SK-LU-1, SPC-A-1 and 95D human lung cancer cell lines, using the MTT assay. The results of this study showed that compounds Ic, Id, IIc, and IId exhibited an efficient percentage of inhibition of cell proliferation.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Coumarin; X-ray; Lung cancer.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017001100603
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Synthesis, X-ray diffraction study and pharmacological evaluation of 3-amino-4-methylthiophene-2-acylcarbohydrazones Anais da ABC (AABC)
HERRMANN,SONJA; SCHÜBEL,TABEA; COSTA,FANNY N.; BARBOSA,MARIA LETÍCIA C.; FERREIRA,FABIO F.; DIAS,THAYS L.M.F.; ARAÚJO,MORGANA V.; ALEXANDRE-MOREIRA,MAGNA S.; LIMA,LÍDIA M.; LAUFER,STEFAN; BARREIRO,ELIEZER J..
ABSTRACT N-acylhydrazone is an interesting privileged structure that has been used in the molecular design of a myriad of bioactive compounds. In order to identify new antinociceptive drug candidates, we described herein the design, synthesis, X-ray diffraction study and the pharmacological evaluation of a series of 3-amino-4-methylthiophene-2-acylcarbohydrazone derivatives (8a-t). Compounds were prepared in good overall yields through divergent synthesis from a common key intermediate and were characterized by classical spectroscopy methods. X-ray diffraction study was employed for unequivocal determination of the imine double bond stereochemistry. 8a-t were evaluated in vivo through oral administration using the classical writhing test in mice....
Tipo: Info:eu-repo/semantics/article Palavras-chave: N-acylhydrazone; Privileged structure; Antinociceptive; P38MAPK; X-ray.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000301073
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Using Tomato Analyzer software to determine embryo size in x-rayed seeds Rev. bras. sementes
Marcos Filho,Julio; Gomes Junior,Francisco Guilhien; Bennett,Mark A; Wells,Arthur A; Stieve,Susan.
A primary interest of image analysis of X-rayed seeds is to identify whether the extent of fill in the embryo cavity is associated with to seed physiological quality. The objective of this research was to verify the accuracy of the freely available Tomato Analyzer (TA) software developed at The Ohio State University to determine the ratio of embryo size over total seed area. Seeds of pumpkin, watermelon, cucumber and cotton were X-rayed and analyzed by the software which defines seed and embryo boundaries and automatically generates numerical values to quantify that ratio. Results showed that the TA has the sensitivity to evaluate the extent of embryo growth within the cucurbits and cotton seeds and is a promising alternative for this assessment in other...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cotton; Cucurbits; Imaging analysis; X-ray.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222010000200018
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Weathering deterioration in pre-harvest of soybean seeds: physiological, physical, and morpho-anatomical changes Scientia Agricola
Pinheiro,Daniel Teixeira; Dias,Denise Cunha Fernandes dos Santos; Medeiros,André Dantas de; Ribeiro,João Paulo Oliveira; Silva,Felipe Lopes da; Silva,Laércio Junio da.
ABSTRACT: Successive cycles of water absorption and loss favor weathering deterioration, one of the main factors that affect the quality of soybean seeds. This study evaluated the physiological, physical, and morpho-anatomical changes in soybean seeds under weathering deterioration at the pre-harvest phase. Six soybean cultivars (BMX Apolo, DM 6563, NS 5959, NA 5909, BMX Potência, and TMG 1175) were produced in a greenhouse and underwent weathering deterioration through a rainfall simulation system, applying 0, 60, 120, and 180 mm of precipitation at pre-harvest phase. Each rainfall level was divided into two applications at an interval of 72 h: 60 mm (30 + 30), 120 mm (60 + 60), and 180 mm (90 + 90). After harvest, the seeds were evaluated for...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glycine max L.; X-ray; Anatomy; Precipitation; Physiological quality.
Ano: 2021 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000700602
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ミシシッピーアカミミガメに対するCTの臨床応用 OAK
永田, 祥代; 山田, 一孝; 上野, 博史; 古林, 与志安; 佐藤, 基佳; NAGATA, Sachiyo; YAMADA, Kazutaka; UENO, Hiroshi; KOBAYASHI, Yoshiyasu; SATO, Motoyoshi.
カメの体幹部は甲羅に覆われているため、単純X線撮影では得られる情報が少ない。そこで今回、ミシシッピーアカミミガメに対するX線CTによる断層撮影検査の有用性について検討した。まず基礎的検討として、臨床的に健康な6匹を用い、軟部組織、肺および骨のCT値を計測し、その結果からそれぞれの組織の観察に適したウインドウを設定した。また、病理学的検索の結果、全ての個体において肝臓の脂肪変性が認められ、肝臓のCT値が低い個体ほど変性の程度が大きく、CT値の高い個体ほど変性の程度が小さかった。このことから、肝臓のCT値の差により脂肪変性の程度を診断することが可能であった。さらに、臨床例についてCT検査を実施したところ、それぞれ、消化管内異物、肺炎および卵塞の診断が可能であった。以上の成績より、ミシシッピーアカミミガメの臨床診断において従来の単純X線撮影では読影が困難であった体幹部軟部組織について、CTにより詳細な情報を得ることが可能であった。よって、カメの臨床診断にはCTによる断層画像診断の積極的な利用が望まれる。 In turtles,conventional radiographic techniques give little information on the interna1 organs because of the density of the shell. Therefore, computed tomography (CT) was attempted in six clinically normal red-eared sliders(Trachemys scripta elegans). The CT values were measured in soft tissues such as the...
Palavras-chave: CT; CT値; 脂肪変性; カメ; 単純X線; Computed tomography; CT value; Fatty metamorphosis; Turtle; X-ray.
Ano: 2001 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2928
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