Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali最新文献_第9页

Proteins in aqueous solution under high frequency electromagnetic field: viscoelastic approximation of a complex system 高频电磁场下水溶液中的蛋白质:复杂体系的粘弹性近似

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Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali Pub Date : 2019-12-20 DOI: 10.1478/AAPP.97S2A17

E. Calabrò, S. Magazù

引用次数: 0

Synthesis of bismuth nanoparticles for biomedical applications 生物医学用铋纳米粒子的合成

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Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali Pub Date : 2019-12-20 DOI: 10.1478/AAPP.97S2A12

L. Torrisi, N. Restuccia, L. Silipigni, S. Cuzzocrea, M. Cordaro

{"title":"Synthesis of bismuth nanoparticles for biomedical applications","authors":"L. Torrisi, N. Restuccia, L. Silipigni, S. Cuzzocrea, M. Cordaro","doi":"10.1478/AAPP.97S2A12","DOIUrl":"https://doi.org/10.1478/AAPP.97S2A12","url":null,"abstract":"Bismuth is a biocompatible material that can be employed in the form of nanoparticles to be used as a possible alternative contrast medium for diagnostics. In particular, it has been prepared as spherical nanoparticles in liquid solution by using the technique of the pulsed laser ablation in water. The high atomic number Bi nanoparticles in the solution show surface plasmon resonance effects, high mass absorption coefficient for soft X-ray interaction and high electron and nuclear stopping powers for electrons and ion beams. This biocompatible solution can be injected into living systems, such as mice, in order to study the up-take effect in different organs with a high contrast spatial localization of the X-ray images in the tissues in which the nanoparticles are confined. The high contrast medium for high-resolution imaging in biological systems can be also used as targeting for successive exposure to ionizing radiation during radiotherapy or hyperthermia of diseased cells. The obtained results demonstrate high contrast images of Bi nanoparticles in biological environment by using the X-ray fluorescence in the electron microscopy and the X-ray absorption in mice.","PeriodicalId":43431,"journal":{"name":"Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2019-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42052561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Resistance to high temperatures of spores from bacilli of shallow hydrothermal vent origins 源自浅热液喷口的芽孢对高温的抗性

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Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali Pub Date : 2019-12-20 DOI: 10.1478/AAPP.97S2A28

Vincenzo Zammuto, C. Gugliandolo

{"title":"Resistance to high temperatures of spores from bacilli of shallow hydrothermal vent origins","authors":"Vincenzo Zammuto, C. Gugliandolo","doi":"10.1478/AAPP.97S2A28","DOIUrl":"https://doi.org/10.1478/AAPP.97S2A28","url":null,"abstract":"Thermophiles from shallow hydrothermal vents (SHV) are ideal candidates to extend our knowledge for understanding the environmental limits for terrestrial life, which are also relevant in the field of astrobiology. The spore resistance of two thermophilic marine strains, Geobacillus vulcani DSM 13174 and Bacillus licheniformis T14, isolated from two SHV (Eolian Islands, Italy), to wet- and dry- heat was compared to their close phylogenetic relatives ( G. stearothermophilus DSM 22 T and B. licheniformis DSM 13 T ), and to the biodosimetry and space microbiology model strain B. subtilis 168. To determine the heat resistance, spore suspensions (107/ml) of each strain were exposed at wet-heat (95°C for 60 min) and dry-heat (130°C for 90 min) conditions. The spores viability was determined plating aliquots of each treated sample onto Tryptone Soy Agar plates, and finally the resistance of spores to both wet- and dry-heat treatments was expressed as LD90. The highest degree of spore resistance was observed for G. stearothermophilus , with similar level of resistance for G. vulcani . Spores from B. licheniformis T14 were more resistant than those of the closely related B. licheniformis DSM 13 T , and also than those of B. subtilis 168. Spores of the two thermophilic marine strains were more resistant to heat stresses than B. subtilis 168, which may reflect their own adaptation to the severe environmental vents conditions. Due to their thermal resistance, the two bacilli of shallow hydrothermal vents origins may have a novel use as bacterial model organisms for further investigation into the spore responses to environment stressors, also simulating space conditions.","PeriodicalId":43431,"journal":{"name":"Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2019-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47028962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Blood flow cytometry in Mugil cephalus and Carassius auratus: a comparative study 头虾与鲫鱼的流式细胞术比较研究

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Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali Pub Date : 2019-12-20 DOI: 10.1478/AAPP.97S2A15

V. Parrino, Tiziana Capello, Gregorio Costa, C. Cannavà, M. Sanfilippo, F. Fazio, G. Piccione, S. Fasulo

{"title":"Blood flow cytometry in Mugil cephalus and Carassius auratus: a comparative study","authors":"V. Parrino, Tiziana Capello, Gregorio Costa, C. Cannavà, M. Sanfilippo, F. Fazio, G. Piccione, S. Fasulo","doi":"10.1478/AAPP.97S2A15","DOIUrl":"https://doi.org/10.1478/AAPP.97S2A15","url":null,"abstract":"Blood and its parameters can give specific indications on the welfare of fishes.Many endogenous and exogenous factors exert influences on the characteristics of blood. The correct interpretation of fish hematology for a given species depends on the availability of reference values. The purpose of the present study was therefore to build a database with data on haematological profiles of Mugil cephalus (Linnaeus 1758) and goldfish Carassius auratus (Linnaeus 1758), in particular of some blood cells, namely red blood cells (RBC), white blood cells (WBC) and thrombocytes (TC). All the blood parameters studied showed significant differences in the two fish species considered, using flow cytometry and optical microscopy coupled with an automated system. In particular, RBC showed an increase in mullets in respect to goldfish, while WBC and TC decreased. The differences found may be due to the environmental conditions and the different eating habits of the two species. The results of this research will allow to better understand how the different dietary habits and environmental conditions can influence the haematological parameters of fishes. Flow cytometry represents a modern diagnostic technique in human. Moreover, the technique used by combining flow cytometry with automated haematological counting, has proved very effective in the early evaluation of haematological parameters of various fish species.","PeriodicalId":43431,"journal":{"name":"Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2019-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48059440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

The Histeridae (Coleoptera: Histeroidea) of Sicily: new records and an updated checklist 西西里岛的Histeridae（鞘翅目：Histeroidea）：新记录和更新清单

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Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali Pub Date : 2019-12-06 DOI: 10.1478/AAPP.972A7

C. Baviera, P. Vienna

引用次数: 3

Modelling and forecasting temperature and precipitation in Italy 模拟和预测意大利的温度和降水

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Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali Pub Date : 2019-07-06 DOI: 10.1478/AAPP.972A2

M. Lefebvre

引用次数: 0

Vortex diffusion in superfluid turbulence: hysteresis and decay 超流体湍流中的涡流扩散：滞后和衰减

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Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali Pub Date : 2019-05-20 DOI: 10.1478/AAPP.97S1A17

M. Mongiovì, L. Saluto, D. Jou

引用次数: 0

Nonequilibrium temperature in the multiscale dynamics and thermodynamics 多尺度动力学和热力学中的非平衡温度

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Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali Pub Date : 2019-05-20 DOI: 10.1478/AAPP.97S1A8

M. Grmela, L. Restuccia

引用次数: 3

New definitions of thermodynamic temperature and entropy not based on the concepts of heat and thermal reservoir 热力学温度和熵的新定义不是基于热和热储层的概念

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Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali Pub Date : 2019-05-20 DOI: 10.1478/AAPP.97S1A1

G. Beretta, E. Zanchini

{"title":"New definitions of thermodynamic temperature and entropy not based on the concepts of heat and thermal reservoir","authors":"G. Beretta, E. Zanchini","doi":"10.1478/AAPP.97S1A1","DOIUrl":"https://doi.org/10.1478/AAPP.97S1A1","url":null,"abstract":"From a new rigorous formulation of the general axiomatic foundations of thermodynamics we derive an operational definition of entropy that responds to the emergent need in many technological frameworks to understand and deploy thermodynamic entropy well beyond the traditional realm of equilibrium states of macroscopic systems. The new treatment starts from a previously developed set of carefully worded operational definitions for all the necessary basic concepts, and is not based on the traditional ones of \"heat\" and of \"thermal reservoir.\" It is achieved in three steps. First, a new definition of thermodynamic temperature is stated, for any stable equilibrium state. Then, by employing this definition, a measurement procedure is developed which defines uniquely the property entropy in a broad domain of states, which could include in principle, even some non-equilibrium states of few-particle systems, provided they are separable and uncorrelated. Finally, the domain of validity of the definition is extended, possibly to every state of every system, by a different procedure, based on the preceding one, which associates a range of entropy values to any state not included in the previous domain. The principle of entropy non-decrease and the additivity of entropy are proved in both the domains considered.","PeriodicalId":43431,"journal":{"name":"Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2019-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44903797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Thermosolutal convection in a rotating viscoelastic Walters fluid 旋转粘弹性Walters流体中的热溶液对流

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Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali Pub Date : 2019-05-20 DOI: 10.1478/AAPP.97S1A20

L. Palese

引用次数: 4