1,269 results match your criteria: "Universita degli Studi di Messina[Affiliation]"

Article Synopsis
  • - Light is crucial for plants because it fuels photosynthesis and influences various growth processes, and using LED lights in indoor farming can enhance plant quality and growth efficiency.
  • - Different wavelengths of light, especially blue and red, significantly impact how plants absorb nutrients and produce secondary metabolites, affecting their overall quality.
  • - The review suggests a need for further research to create customized lighting strategies that improve both the nutritional value and characteristics of horticultural products.
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New Strategies to Increase the Abiotic Stress Tolerance in Woody Ornamental Plants in Mediterranean Climate.

Plants (Basel)

May 2023

Centro di Ricerca in Produzioni Vegetali, Scuola Superiore Sant'Anna Pisa, 56127 Pisa, Italy.

Article Synopsis
  • The native shrubs of Mediterranean countries, known for their ornamental value, are crucial in forming the 'Macchia', a unique type of vegetation in the region.
  • Recent studies focus on their ability to withstand abiotic stresses, particularly in urban areas, which can hinder plant growth.
  • Strategies like genetic modifications, agronomic techniques, and using native species can enhance the resilience of these plants, ensuring they thrive and maintain aesthetic appeal in cities.
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The Role of Serotonin in Fear Learning and Memory: A Systematic Review of Human Studies.

Brain Sci

August 2023

Dipartimento di Scienze Cognitive, Psicologiche, Pedagogiche e Degli Studi Culturali, Università Degli Studi di Messina, Via Concezione 6, 98121 Messina, Italy.

Fear is characterized by distinct behavioral and physiological responses that are essential for the survival of the human species. Fear conditioning (FC) serves as a valuable model for studying the acquisition, extinction, and expression of fear. The serotonin (5-hydroxytryptamine, 5-HT) system is known to play a significant role in emotional and motivational aspects of human behavior, including fear learning and expression.

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Abnormal septal motion (ASM), which often is associated with myocardial ischemia, is also observed in other diseases. Owing to the position of the interventricular septum (IVS) in the heart, its movement not only relies on contractile properties but is also affected by the pressure gradient between the 2 ventricles and by the mode of electrical activation. Echocardiography allows the operator to focus on the motion of the IVS, analyzing its characteristics and thereby gaining information about the possible underlying pathophysiological mechanism.

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Robotic docking time with the Hugo™ RAS system in gynecologic surgery: a procedure independent learning curve using the cumulative summation analysis (CUSUM).

J Robot Surg

October 2023

Dipartimento di Scienze della Salute della Donna e del Bambino e di Sanità Pubblica, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario A. Gemelli IRCCS, UOC Chirurgia Ginecologica, 00168, Rome, Italy.

Robot-assisted surgery has been proven to offer improvements in term of surgical learning curve and feasibility of minimally invasive surgery, but has often been criticized for its longer operative times compared to conventional laparoscopy. Additional times can be split into time required for system set-up, robotic arms docking and calibration of robotic instruments; secondly, surgeon's learning curve. One of the newest systems recently launched on the market is the Hugo™ RAS (MEDTRONIC Inc, United States).

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Background: Pulmonary arterial hypertension (PAH) encompasses a group of diseases characterized by raised pulmonary vascular resistance, resulting from vascular remodelling and inflammation. Bromodomain and extra-terminal (BET) proteins are required for the expression of a subset of NF-κB-induced inflammatory genes which can be inhibited by the BET mimic JQ1+. We hypothesised that JQ+ would supress TNFα-driven inflammatory responses in human pulmonary vascular cells from PAH patients.

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Taxonomic and ecological remarks on species complex (Campanulaceae).

PhytoKeys

July 2023

Dipartimento di Scienze Biologiche, Geologiche ed Ambientali, Università di Catania, via A. Longo 19, Catania, Italy Università di Catania Catania Italy.

The populations usually attributed to (Tineo) M.B.Crespo, Serra & A.

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BRAF-AXL-PD-L1 Signaling Axis as a Possible Biological Marker for RAI Treatment in the Thyroid Cancer ATA Intermediate Risk Category.

Int J Mol Sci

June 2023

Dipartimento di Patologia Umana Dell'adulto e Dell'età Evolutiva Gaetano Barresi, Divisione di Anatomia Patologica, Università Degli Studi di Messina, 98125 Messina, Italy.

The use of radioiodine therapy (RIT) is debated in intermediate-risk differentiated thyroid cancer (DTC) patients. The understanding of the molecular mechanisms involved in the pathogenesis of DTC can be useful to refine patient selection for RIT. We analyzed the mutational status of BRAF, RAS, TERT, PIK3 and RET, and the expression of PD-L1 (as a CPS score), the NIS and AXL genes and the tumor-infiltrating lymphocytes (TIL, as the CD4/CD8 ratio), in the tumor tissue in a cohort of forty-six ATA intermediate-risk patients, homogeneously treated with surgery and RIT.

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Surface-Enhanced Raman Scattering (SERS) can obtain the spectroscopic response of specific analytes. In controlled conditions, it is a powerful quantitative technique. However, often the sample and its SERS spectrum are complex.

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Two silver(I) complexes with biologically relevant heterocyclic ligands, pyrrole and furan-2- carboxylic acid, were synthesized and their composition was confirmed using elemental, spectral, thermal and structural analyses. The {[Ag(Py2c)]} (AgPy2c, Py2c = pyrrole-2-carboxylate) and {[Ag(Fu2c)]} (AgFu2c, Fu2c = furan-2-carboxylate) solubility and stability in biological test stock solution were confirmed by H NMR spectroscopy. The X-ray analysis has enabled us to determine typical argentophilic interactions and bridging carboxylate coordination mode of both ligands.

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Intro: Aggressive behavior represents a significant public health issue, with relevant social, political, and security implications. Non-invasive brain stimulation (NIBS) techniques may modulate aggressive behavior through stimulation of the prefrontal cortex.

Aims: To review research on the effectiveness of NIBS to alter aggression, discuss the main findings and potential limitations, consider the specifics of the techniques and protocols employed, and discuss clinical implications.

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Origin of non-exhaust PM in cities by individual analysis of particles collected by honey bees (Apis mellifera).

Environ Pollut

August 2023

Dipartimento di Scienze delle Produzioni Vegetali Sostenibili, Università Cattolica del Sacro Cuore, Via Emilia Parmense 84, Piacenza, Italy. Electronic address:

Urban areas present multiple challenges to scientists interested in unraveling the source, transport, and fate of airborne particulate matter (PM). Airborne PM consists of a heterogeneous mixture of particles with different sizes, morphologies, and chemical compositions. However, standard air quality stations only detect the mass concentration of PM mixtures with aerodynamic diameters ≤10 μm (PM) and/or ≤ 2.

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Objective: We conducted a national survey to understand how rhinology practice has changed with the advent of biologics and how this affected patients with uncontrolled, severe chronic rhinosinusitis with nasal polyps (CRSwNP). We aimed to analyse the results of the survey and infer practical recommendations for clinical practice.

Methods: A group of ear, nose, and throat specialists (ENTs) experienced in the management of CRSwNP developed a 74-question survey.

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The first 60 cases of robotic sacrocolpopexy with the novel HUGO RAS system: feasibility, setting and perioperative outcomes.

Front Surg

May 2023

Dipartimento di Scienze Della Salute Della Donna e del Bambino e di Sanità Pubblica, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario A. Gemelli IRCCS, UOC Chirurgia Ginecologica, Roma, Italy.

Introduction: We present the preliminary report of the first 60 cases of robotic sacrocolpopexy (RSCP) performed with a minimally invasive approach by using the new HUGO RAS system (Medtronic) with the aim of assessing its feasibility, safety and efficacy.

Methods: Results in terms of operative time, intraoperative blood loss, post-operative pain, length of hospitalisation, intra and post-operative complications were comparable to previously described laparoscopic and robotic techniques.

Results: Urogynecological assessment at three months follow up showed surgical anatomic success in 96.

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Like aggregation from unlike attraction: stripes in symmetric mixtures of cross-attracting hard spheres.

Phys Chem Chem Phys

June 2023

Dipartimento di Scienze Matematiche e Informatiche, Scienze Fisiche e Scienze della Terra, Università degli Studi di Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy.

Self-assembly of colloidal particles into striped phases is at once a process of relevant technological interest-just think about the possibility to realise photonic crystals with a dielectric structure modulated along a specific direction-and a challenging task, since striped patterns emerge in a variety of conditions, suggesting that the connection between the onset of stripes and the shape of the intermolecular potential is yet to be fully unravelled. Hereby, we devise an elementary mechanism for the formation of stripes in a basic model consisting of a symmetric binary mixture of hard spheres that interact a square-well cross attraction. Such a model would mimic a colloid in which the interspecies affinity is of longer range and significantly stronger than the intraspecies interaction.

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Quantum-Classical Hybrid Systems and Ehrenfest's Theorem.

Entropy (Basel)

April 2023

Dipartimento di Matematica ed Informatica, Università degli Studi di Palermo, Via Archirafi 34, 90123 Palermo, Italy.

The conceptual analysis of quantum mechanics brings to light that a theory inherently consistent with observations should be able to describe both quantum and classical systems, i.e., quantum-classical hybrids.

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A Quantum-Classical Model of Brain Dynamics.

Entropy (Basel)

March 2023

Dipartimento di Medicina e Clinica Sperimentale, Università degli Studi di Messina, A.O.U. "G. Martino", Via Consolare Valeria, 98125 Messina, Italy.

The study of the human psyche has elucidated a bipartite structure of logic reflecting the quantum-classical nature of the world. Accordingly, we posited an approach toward studying the brain by means of the quantum-classical dynamics of a mixed Weyl symbol. The mixed Weyl symbol can be used to describe brain processes at the microscopic level and, when averaged over an appropriate ensemble, can provide a link to the results of measurements made at the meso and macro scale.

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Rationale: The principle of inseparability of teaching, academic research and assistance to patients, to which university physicians are subject in carrying out their work, invites reflection, aimed at identifying a combination of the three activities characterised, at the same time, by efficiency and effectiveness.

Aims And Objectives: The present paper illustrates a paradigm based on the balance of intrinsic and extrinsic motivations with the purpose of identifying an efficient solution in the performance of the duties of university doctors.

Methods: The analysis refers to Italy in terms of the main scenario, or, conversely, the achievement of more profit-related goals.

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Dimeric polyphenols to pave the way for new antimalarial drugs.

RSC Med Chem

April 2023

Laboratory of Medicinal Chemistry, CIRM, Department of Pharmacy, University of Liège Quartier Hôpital - B36 Tower 4, +5, Avenue Hippocrate 15 4000 Liège Belgium

Because of the threat of resistant , new orally active antimalarials are urgently needed. Inspired by the structure of ellagic acid, exhibiting potent and antiplasmodial effects, polyphenolic structures possessing a similar activity-safety profile were synthesized. Indeed, most exhibited a marked effect (IC < 4 μM) on resistant , without any detrimental effects reported during the toxicity assays (hemolysis, cytotoxicity, ).

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LED Lighting to Produce High-Quality Ornamental Plants.

Plants (Basel)

April 2023

Department of Agricultural and Environmental Sciences-Production, Landscape, Agroenergy, Università degli Studi di Milano, 20133 Milan, Italy.

Article Synopsis
  • LED technology is energy-efficient, compact, and long-lasting, providing advantages to the ornamental industry over traditional lighting methods.
  • Light plays a crucial role in plant growth through photosynthesis and influences various traits like flowering and pigmentation, allowing for precise management of plant environments.
  • Using LEDs offers growers benefits like predictable yields, improved plant quality, and reduced reliance on agrochemicals and energy, making it a sustainable choice for the floriculture industry.
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Lead Detection in a Gig-Lox TiO Sponge by X-ray Reflectivity.

Nanomaterials (Basel)

April 2023

CNR-IMM, Zona Industriale Strada VIII n.5, 95121 Catania, Italy.

The importance of lead analysis in environmental matrices becomes increasingly relevant due to the anthropogenic spread of toxic species in nature. Alongside the existing analytical methods to detect lead in a liquid environment, we propose a new dry approach for lead detection and measurement based on its capture from a liquid solution by a solid sponge and subsequent quantification based on X-ray analyses. The detection method exploits the relationship between the electronic density of the solid sponge, which depends on the captured lead, and the critical angle for total reflection of the X-rays.

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Laser-Treated Steel Surfaces Gliding on Snow at Different Temperatures.

Materials (Basel)

April 2023

Dipartimento di Energia, Politecnico di Milano, 20133 Milano, Italy.

With the goal of substituting a hard metallic material for the soft Ultra High Molecular Weight Polyethylene (UHMWPE) presently used to make the bases of skis for alpine skiing, we used two non-thermodynamic equilibrium surface treatments with ultra-short (7-8 ps) laser pulses to modify the surface of square plates (50 × 50 mm) made of austenitic stainless steel AISI 301H. By irradiating with linearly polarized pulses, we obtained Laser Induced Periodic Surface Structures (LIPSS). By laser machining, we produced a laser engraving on the surface.

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During husbandry, domestic animals are exposed to many factors that can influence their circadian physiology organization leading to an increase in animals' discomfort. Thermal homeostasis is at the basis of animal wellness, the aim of the present study was to investigate the daily fluctuation of serum concentrations of 3,5,3'-triiodothyronine (T3) and thyroxine (T4) in association with the daily fluctuation of uncoupling protein 1 (UCP1) and clock gene Per2 in healthy horses housed in individual box, to improve the knowledge on this matter. Seven clinically healthy female Italian Saddle horses (8-10 years old, 510 ± 32 kg), were housed in individual boxes under natural photoperiod and environmental temperature and humidity.

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While mounting evidence shows promising effects of brain training on cognitive functioning in healthy and pathological conditions, the spread of variable training approaches highlights the need to compare their efficacy and identify their neural correlates, representing possible targets for neuromodulation treatments. We performed coordinate-based functional magnetic resonance imaging meta-analyses to compare the neural correlates and the cognitive outcomes of cognitive (n = 22), physical (n = 22), and meditative (n = 20) training in healthy non-expert individuals. Pre/post-training cognitive metrics improved after cognitive and physical training, but their heterogeneity, or even the lack of these measurements in some studies, highlights the need of more structured protocols.

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Background: The functional results of total elbow arthroplasty (TEA) are controversial and the medium- to long-term revision rates are relatively high. The aim of the present study was to analyze the stresses of TEA in its classic configuration, identify the areas of greatest stress in the prosthesis-bone-cement interface, and evaluate the most wearing working conditions.

Materials And Methods: By means of a reverse engineering process and using a 3D laser scanner, CAD (computer-aided drafting) models of a constrained elbow prosthesis were acquired.

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