Relevant bibliographies by topics / Difese rigide

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Difese rigide'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Difese rigide.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Difese rigide"

1

de Klijn, T., A. M. M. Schreurs, and L. M. J. Kroon-Batenburg. "Rigid-body motion is the main source of diffuse scattering in protein crystallography." IUCrJ 6, no. 2 (February 16, 2019): 277–89. http://dx.doi.org/10.1107/s2052252519000927.

Full text
Abstract:
The origin of diffuse X-ray scattering from protein crystals has been the subject of debate over the past three decades regarding whether it arises from correlated atomic motions within the molecule or from rigid-body disorder. Here, a supercell approach to modelling diffuse scattering is presented that uses ensembles of molecular models representing rigid-body motions as well as internal motions as obtained from ensemble refinement. This approach allows oversampling of Miller indices and comparison with equally oversampled diffuse data, thus allowing the maximum information to be extracted from experiments. It is found that most of the diffuse scattering comes from correlated motions within the unit cell, with only a minor contribution from longer-range correlated displacements. Rigid-body motions, and in particular rigid-body translations, make by far the most dominant contribution to the diffuse scattering, and internal motions give only a modest addition. This suggests that modelling biologically relevant protein dynamics from diffuse scattering may present an even larger challenge than was thought.
APA, Harvard, Vancouver, ISO, and other styles
2

Okuzono, Takeshi, Koji Uenishi, and Kimihiro Sakagami. "Experimental comparison of absorption characteristics of single-leaf permeable membrane absorbers with different backing air cavity designs." Noise Control Engineering Journal 68, no. 3 (May 20, 2020): 237–45. http://dx.doi.org/10.3397/1/376820.

Full text
Abstract:
Permeable membranes (PMs), which are air-permeable fabrics made from various natural or chemical fibers that are thinly woven or non-woven, are attractive sound-absorbing materials. The simplest PM absorber is a single-leaf PM absorber (PMSG) with a non-locally reacting rigid backed air cavity in which a PM is placed in front of a rigidly backed air cavity. A honeycomb-backed single-leaf PM absorber (PMHC), which has a locally reacting air cavity, is also well known. However, the two PM absorbers have shortcomings in their diffuse field absorption coefficients attrib- utable to the backing air cavity design. To overcome those shortcomings, we intro- duce a PM absorber array (PMAR): a single-leaf PM absorber with multiple locally reacting air cavities of different depths. As described herein, to present PMAR benefits, we experimentally compare the diffuse field absorption charac- teristics of the three single-leaf PM absorbers with different air cavity designs. Reverberation absorption coefficient measurements were taken using nine thin permeable membranes made of three chemical fibers, each having different flow resistance and surface density. Results show that PMAR is an effective sound ab- sorbing structure to overcome the shortcomings related to the diffuse field absorp- tion coefficients of PMSG and PMHC. Material property effects on permeable membranes are also demonstrated.
APA, Harvard, Vancouver, ISO, and other styles
3

Garcia-Martin, Victor, Ana Verdejo-González, David Ruiz-Picazo, and José Ramírez-Villaescusa. "Sagittal Deformity Correction in a Patient Suffering From Diffuse Idiopathic Skeletal Hyperostosis Who Previously Underwent a Total Hip and Bilateral Knee Replacement." Geriatric Orthopaedic Surgery & Rehabilitation 12 (January 1, 2021): 215145932199274. http://dx.doi.org/10.1177/2151459321992745.

Full text
Abstract:
Introduction: Physiological aging frequently leads to degenerative changes and spinal deformity. In patients with hypolordotic fusions or ankylosing illnesses such as diffuse idiopathic skeletal hyperostosis or ankylosing spondylitis, compensation mechanisms can be altered causing severe pain and disability. In addition, if a total hip replacement and/or knee replacement is performed, both pelvic and lower limbs compensation mechanisms could be damaged and prosthetic dislocation or impingement syndrome could be present. Pedicle subtraction osteotomy has proven to be the optimal correction technique for spinal deformation in patients suffering from a rigid spine. Case Presentation: A 70-year-old male patient with diffuse idiopathic skeletal hyperostosis criteria and a rigid lumbar kyphosis, who previously underwent a total hip and knee replacement, had severe disability. We then performed corrective surgery by doing a pedicle subtraction osteotomy. The procedure and outcomes are presented here. Conclusion: In symptomatic patients with sagittal imbalance and a rigid spine, pedicle subtraction osteotomy can indeed correct spinal deformity and re-establish sagittal balance.
APA, Harvard, Vancouver, ISO, and other styles
4

Peck, Ariana, Frédéric Poitevin, and Thomas J. Lane. "Intermolecular correlations are necessary to explain diffuse scattering from protein crystals." IUCrJ 5, no. 2 (February 21, 2018): 211–22. http://dx.doi.org/10.1107/s2052252518001124.

Full text
Abstract:
Conformational changes drive protein function, including catalysis, allostery and signaling. X-ray diffuse scattering from protein crystals has frequently been cited as a probe of these correlated motions, with significant potential to advance our understanding of biological dynamics. However, recent work has challenged this prevailing view, suggesting instead that diffuse scattering primarily originates from rigid-body motions and could therefore be applied to improve structure determination. To investigate the nature of the disorder giving rise to diffuse scattering, and thus the potential applications of this signal, a diverse repertoire of disorder models was assessed for its ability to reproduce the diffuse signal reconstructed from three protein crystals. This comparison revealed that multiple models of intramolecular conformational dynamics, including ensemble models inferred from the Bragg data, could not explain the signal. Models of rigid-body or short-range liquid-like motions, in which dynamics are confined to the biological unit, showed modest agreement with the diffuse maps, but were unable to reproduce experimental features indicative of long-range correlations. Extending a model of liquid-like motions to include disorder across neighboring proteins in the crystal significantly improved agreement with all three systems and highlighted the contribution of intermolecular correlations to the observed signal. These findings anticipate a need to account for intermolecular disorder in order to advance the interpretation of diffuse scattering to either extract biological motions or aid structural inference.
APA, Harvard, Vancouver, ISO, and other styles
5

Vargas, Herom, and Nilton Carvalho. "O ÁLBUM SANDINISTA!: AGENCIAMENTOS E FRONTEIRAS MUSICAIS DO GRUPO THE CLASH // THE SANDINISTA! ALBUM: AGENCEMENTS AND MUSICAL BOUNDARIES OF THE BAND THE CLASH." Contemporânea Revista de Comunicação e Cultura 15, no. 2 (November 10, 2017): 511. http://dx.doi.org/10.9771/contemporanea.v15i2.18243.

Full text
Abstract:
O movimento punk inglês produziu rompimentos com o rock mainstream da indústria fonográfica, mas após algum tempo, sua estética se estabeleceu como fórmula cristalizada. No álbum Sandinista! (1980), a banda inglesa The Clash se afasta dessa rigidez musical ao movimentar-se para as fronteiras, em contato com outras culturas e seus agenciamentos textuais. Essa mudança é um aspecto fundamental na construção da linguagem híbrida do disco que difere dos moldes identitários do punk rock. Com base nos Estudos Culturais e na Semiótica da Cultura, este artigo visa demonstrar como o grupo propôs uma arte de fronteira musical e política com o chamado Terceiro Mundo, usando textos (dub, jazz, soul, hip hop, calypso) geradores de uma semiótica que difere do regime significante (DELEUZE; GUATTARI, 1995) do punk britânico.
APA, Harvard, Vancouver, ISO, and other styles
6

Miller, Charles E., and B. E. Eichinger. "Analysis of Rigid Polyurethane Foams by Near-Infrared Diffuse Reflectance Spectroscopy." Applied Spectroscopy 44, no. 5 (June 1990): 887–94. http://dx.doi.org/10.1366/0003702904087064.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Kroon-Batenburg, Loes M. J., Tim de Klijn, and Antoine M. M. Schreurs. "Diffuse scattering in protein crystals is dominated by rigid-body motions." Acta Crystallographica Section A Foundations and Advances 75, a1 (July 20, 2019): a38. http://dx.doi.org/10.1107/s0108767319099616.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Nie, Zhong-Bin, Min Zhang, Tan Su, Liang Zhao, Yuan-Yuan Wang, Guang-Yan Sun, and Zhong-Min Su. "Electrochemical and diffuse reflectance study on tetrahedral ε-Keggin-based metal–organic frameworks." RSC Advances 7, no. 50 (2017): 31544–48. http://dx.doi.org/10.1039/c7ra04771a.

Full text
Abstract:
Two polymolybdate-based metal–organic frameworks composed of Zn-ε-Keggin nodes and semi-rigid organic linkers were successfully synthesized. The electrochemical behaviors of these two compounds were studied, as well as their diffuse reflectance performance.
APA, Harvard, Vancouver, ISO, and other styles
9

Wu, Xue, Adam T. Eggebrecht, Silvina L. Ferradal, Joseph P. Culver, and Hamid Dehghani. "Evaluation of rigid registration methods for whole head imaging in diffuse optical tomography." Neurophotonics 2, no. 3 (July 21, 2015): 035002. http://dx.doi.org/10.1117/1.nph.2.3.035002.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

LoDestro, L. L. "The rigid ballooning mode in finite-beta axisymmetric plasmas with diffuse pressure profiles." Physics of Fluids 29, no. 7 (1986): 2329. http://dx.doi.org/10.1063/1.865572.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Difese rigide"

1

Cirelli, Gianluca. "Impatto degli interventi antropici di difesa costiera sulla struttura e distribuzione della popolazione di Lentidium mediterraneum (Mollusca bivalvia)." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amslaurea.unibo.it/3218/.

Full text
Abstract:
Il presente elaborato si inserisce all’interno del progetto THESEUS (Innovative Technologies for safer European coasts in a changing climate), nella sezione denominata “work package 3”. I principali obiettivi di questo studio sono: 1) valutare l’impatto delle differenti strategie di difesa di zone intertidale dell’ecosistema spiaggia lungo il litorale dell’Emilia-Romagna; 2) analizzare nel dettaglio la struttura e la distribuzione del microbivalve Lentidium mediterraneum, tipico do questa zona, per valutarne un eventuale utilizzo nei progetti di monitoraggio e analisi degli impatti antropici legati alle variazioni morfodinamiche. Sono state scelte tre spiagge: Cesenatico, in cui da molti anni sono presenti strutture di difesa rigide della spiaggia, e dove ogni anno, al termine della stagione estiva, vengono costruite delle dune artificiali, rimosse a fine primavera, per proteggere gli stabilimenti balneari dalle mareggiate invernali; Cervia, in cui sono presenti solo le dune artificiali stagionali; Lido di Dante, considerato naturale per l’assenza di strutture di protezione. Il campionamento è stato effettuato in 3 tempi per ciascun sito. 2 tempi senza le dune artificiali, e uno con. Per ciascun sito e ciascun tempo sono stati replicati 3 transetti, random, per ogni livello di marea. Sono stati prelevati campioni per un totale di 14879 individui e identificati 40 taxa. Da questi sono stati estratti gli esemplari di Lentidium mediterraneum da analizzare. Le analisi uni e multivariate effettuate sull’intera comunità hanno messo in evidenza differenze fra le spiagge, fra i tempi di campionamento e i livelli di marea. Si è, inoltre evidenziato come tali differenze fossero in parte dovute alle densità di Lentidium mediterraneum. Oltre alle analisi classiche nel presente lavoro di tesi è stato proposto un modello concettuale di trasporto del Lentidium mediterraneum che se validato confermerebbe la possibilità di utilizzare il microbivalve come “proxy biologico”.
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Difese rigide"

1

Bier, Jess. "Validating Segregated Observers: Mapping West Bank Settlements from Without and Within." In Mapping Israel, Mapping Palestine. The MIT Press, 2017. http://dx.doi.org/10.7551/mitpress/9780262036153.003.0005.

Full text
Abstract:
Chapter 5, “Validating Segregated Observers”, explores the intricate ways that the Israeli occupation shapes empirical observations. Through a critique of feminist standpoint theory and Donna Haraway’s work on situated knowledge, it shows how the most well meaning maps can be drastically different depending on who makes them. After 1967 Israeli settlers have increasingly moved to the West Bank, establishing diffuse but numerous settlements that dominate the landscape, engendering forms of segregation that are both rigid and complex. As a result, Palestinians see different parts of the landscape, and under tougher restrictions, than do Israelis, and vice versa. For example, cartographers in Palestinian non-governmental organizations (NGOs) are able to collect map data only within Palestinian areas, and must view the Israeli settlements from without. This produces a dichotomy between, and enforces a drastically unequal separation of, Palestinians and Israelis. It also buttresses imbalances of power in international technoscience, influencing even the most apparently objective, empirical knowledge. Chapter 5 explores the (by no means straightforward) implications of this segregation in detail, while also introducing the notion of refractivity, or material and spatial reflexivity. Throughout, it seeks to understand how cartographers in organizations who use the same tools to map the same landscapes can produce different results.
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Difese rigide"

1

Li, Jianrong, Tianle Cheng, and Martin Y. M. Chiang. "Finite Element Modelling of Cell Adhesion Mediated by Receptor-Ligand Binding." In ASME 2009 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2009. http://dx.doi.org/10.1115/sbc2009-206297.

Full text
Abstract:
The process of cell adhesion and spreading on the extracellular matrix (ECM) protein layer is mediated by the interaction of cell receptors and ECM ligands [1]. Receptors diffuse along the cell membrane surface and interact with ligands in ECM to form bonds. Cells spread and the adhesion zone grows as bond formation at the adhesion front increases to a critical level. This process involves coupling of reaction-diffusion and mechanical contact between cells and ECM. In this study, a novel numerical algorithm is developed to implement this coupling into the finite element method for modeling the process of cell adhesion and spreading. By taking the mass diffusion and the user-defined gap conductance features provided in a commercial FEM code, Abaqus [2], the process has been solved in an integrated and fully coupled manner. Preliminary results have been obtained from the simulation of cell spreading on a rigid substrate. The influence of glycocalyx layer (present at cell surface) on the adhesion development has also been incorporated into the modeling.
APA, Harvard, Vancouver, ISO, and other styles
2

Reátegui, Eduardo, and Alptekin Aksan. "Effect of Kinetic and Thermodynamic Transitions of Confined Water on Biomolecules." In ASME 2008 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2008. http://dx.doi.org/10.1115/sbc2008-192376.

Full text
Abstract:
In the last years, encapsulation of functional biomolecules (such as enzymes, proteins and antibodies) in three-dimensional nanoporous silica matrices has received considerable attention for its potential applications in biocatalysis, biosensing, and biopreservation.1 A handful of studies conducted with bacteria, plant, and mammalian cells have shown that these complex microorganisms can also function when they are encapsulated in silica matrices.2 When encapsulated in rigid permeable mesopores, mobility and proliferation of the microorganisms are prevented, while nutrients and by-products diffuse freely through the porous matrix. However, it is not known what mechanism(s) enables the biomolecules to be stable, and the microorganisms to be active, while they are mechanically confined in a matrix in a “no-growth” state. It is known that the motions and properties of water change when confined in nanopores. Therefore, we envision that the altered properties of confined water play a role in increasing the stability of biomolecules. This study is focused on understanding the effects of confinement on the kinetic and thermodynamic transitions of water, and identifying its effects on the structure of confined biomolecules. We have utilized Fourier Transform Infrared Spectroscopy (FTIR) to identify the different states and phase transitions of nanopore confined water at cryogenic temperatures. We have extended our analysis to quantify the structural changes in nanopore confined isolated and endogenous proteins of intact organisms.
APA, Harvard, Vancouver, ISO, and other styles
3

Sarvghad-Moghaddam, Hesam, Ghodrat Karami, and Mariusz Ziejewski. "The Effects of Directionality of Blunt Impacts on Mechanical Response of the Brain." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-39338.

Full text
Abstract:
The intrinsic complexity of the human head and brain lies within the non-uniformity of their constitutive components in terms of shape, material, function, and tolerance. Due to this complexity, the directionality of impact, when the head is exposed to an assault, is a major concern as different responses are anticipated based on the location of impact. The main objective of the study was to show that while most studies propose the injury criteria as based on the kinematical parameters, the tissue-level brain features are more substantiated injury indicators. Accordingly, a finite element (FE) approach was employed to elucidate the injury-related behavior of the head for front, back, and side impacts against a rigid wall. To this end, a 50th percentile FE head-neck model, including most anatomical features, was used. The kinematics of the head in terms of the linear acceleration, as well as the biomechanical response of the brain at the tissue level in terms of intracranial pressure (ICP) and maximum local shear stress, were evaluated as the main injury criteria. Ls-Dyna, a transient, nonlinear, and explicit FE code, was employed to carry out all the simulations. To verify the influence of impact directionality, identical boundary conditions were enforced in all impact scenarios. While brain responses showed similar patterns in all three directions, different peak values were predicted. The highest peak values for the local shear stress, ICP gradient, and the center mass linear acceleration of brain were observed for the frontal impact. These threshold values are of great significance in predicting injuries such as diffuse axonal injury (DAI) resulting from the shear deformation of brain axons. It is believed that directionality considerations could greatly help to improve the design of protective headgears which are considered to be the most effective tools in mitigating a TBI.
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Difese rigide' for particular source types:
Journal articles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography