917 results match your criteria: "University of Rome "G. Marconi"[Affiliation]"

Background: Dipteran parasitoids of Embioptera (webspinners) are few and extremely rare but known from all biogeographical regions except Australasia/Oceania. All belong to the fly family Tachinidae, a hyperdiverse and widespread clade of parasitoids attacking a variety of arthropod orders.

Results: The webspinner-parasitizing Diptera are reviewed based mostly on records from the collecting and rearing by Edward S.

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A promising therapeutic strategy to delay and/or prevent the onset of neurodegenerative diseases (NDs) could be to restore neuroprotective pathways physiologically triggered by neurons against stress injury. Recently, we identified the accumulation of neuroglobin (NGB) in neuronal cells, induced by the 17β-estradiol (E2)/estrogen receptor β (ERβ) axis, as a protective response that increases mitochondria functionality and prevents the activation of apoptosis, increasing neuron resilience against oxidative stress. Here, we would verify if resveratrol (Res), an ERβ ligand, could reactivate NGB accumulation and its protective effects against oxidative stress in neuronal-derived cells (i.

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is an alien aquatic plant considered highly invasive in Europe since it alters freshwater habitats by forming dense mats both in water and along banks, outcompeting natives. effects on the native carnivorous plant were investigated here. A 21-day indoor experiment was performed by setting up some separate tests in which was made to grow both alone (control tests) and together with (arena tests).

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Life on bottles: Colonisation of macroplastics by freshwater biota.

Sci Total Environ

May 2023

Department of Sciences, University of Roma Tre, Viale G. Marconi 446, 00146 Rome, Italy.

While rivers are known to be the main vectors of plastics to the sea, it seems surprising that studies on interactions (e.g. colonisation/entrapment and drift) between macroplastics and biota continue to remain largely neglected, notwithstanding they represent unexpected threats to freshwater biota and riverine habitats.

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Article Synopsis
  • - Breast cancer is the most common cancer in women globally, with 70% of cases being estrogen receptor α-positive, which means they thrive on estrogen signaling that helps them resist chemotherapy.
  • - Resveratrol (RSV), a natural compound, can prevent the buildup of a protective protein in these cancer cells but has limited effectiveness because it breaks down quickly in the body.
  • - New research shows that RSV combined with gold nanoparticles enhances its ability to lower the protective protein levels and promotes cancer cell death when used with chemotherapy, making it a potential better treatment option for breast cancer.
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In Italy, differently from other countries, a national museum of natural history is not present. This absence is due, among other reasons, to its historical political fragmentation up to 1870, which led to the establishment of medium-sized museums, mostly managed by local administrations or universities. Moreover, a change of paradigm in biological research, at the beginning of the 20 century, contributed to privilege experimental studies in universities and facilitated the dismissal of descriptive and exploratory biology, which formed the basis of the taxonomic research carried out by natural history museums.

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Microplastics are widely spread in aquatic environments. Although they are considered among the most alarming contaminants, toxic effects on organisms are unclear, particularly on freshwater plants. In this study, the duckweed was grown on different concentrations (50, 100 mg/L) of poly(styrene-co-methyl methacrylate) microplastics (MP) and exposure times (T0, T7, T14, T28 days).

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FMR1 deletion in rats induces hyperactivity with no changes in striatal dopamine transporter availability.

Sci Rep

December 2022

Department of Science, Section of Biomedical Sciences and Technologies, Roma Tre University, Viale G. Marconi 446, 00146, Rome, Italy.

Autism Spectrum Disorder (ASD) is a pervasive neurodevelopmental disorder emerging in early life characterized by impairments in social interaction, poor verbal and non-verbal communication, and repetitive patterns of behaviors. Among the best-known genetic risk factors for ASD, there are mutations causing the loss of the Fragile X Messenger Ribonucleoprotein 1 (FMRP) leading to Fragile X syndrome (FXS), a common form of inherited intellectual disability and the leading monogenic cause of ASD. Being a pivotal regulator of motor activity, motivation, attention, and reward processing, dopaminergic neurotransmission has a key role in several neuropsychiatric disorders, including ASD.

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Fishing lines, hooks and nets represent a sub-category of macro-litter potentially entrapping plover birds nesting on sandy beaches. Here, during a winter period, the accumulation pattern of both general beach litter and fishing lines, hooks and nets was analysed on four central Italy beaches. Despite the active monthly litter removal by clean-ups, there was not a decrease in its density during the winter period, due to the continuous accumulation by frequent winter storms.

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Aquatic plants entrap different size of plastics in indoor flume experiments.

Sci Total Environ

March 2023

Department of Sciences, Roma Tre University, Viale G. Marconi 446, 00146 Rome, Italy.

Plastics accumulate in the environment affecting biota and ecosystems. Although rivers are vectors of land-based plastics to the sea, macroplastics and microplastics in rivers are recently studied. Most studies focused on floating plastic transport to the sea through rivers considering only abiotic hydromorphological factors.

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Measurements of the associated production of a W boson and a charm ( ) quark in proton-proton collisions at a centre-of-mass energy of 8 are reported. The analysis uses a data sample corresponding to a total integrated luminosity of 19.7 collected by the CMS detector at the LHC.

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Psilocybin mitigates the cognitive deficits observed in a rat model of Fragile X syndrome.

Psychopharmacology (Berl)

January 2023

Department of Science, Section of Biomedical Sciences and Technologies, University "Roma Tre", Viale G. Marconi 446, 00146, Rome, Italy.

Rationale: Fragile X syndrome (FXS) is the most common form of inherited intellectual disability (ID) and the leading monogenic cause of autism spectrum disorder (ASD). Serotonergic neurotransmission has a key role in the modulation of neuronal activity during development, and therefore, it has been hypothesized to be involved in ASD and co-occurring conditions including FXS. As serotonin is involved in synaptic remodeling and maturation, serotonergic insufficiency during childhood may have a compounding effect on brain patterning in neurodevelopmental disorders, manifesting as behavioral and emotional symptoms.

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In the last decades, Mars has been widely studied with on-site missions and observations, showing a planet that could have hosted life in the past. For this reason, the recent and future space missions on the red planet will search for traces of past and, possibly, present life. As a basis for these missions, Space Agencies, such as the European Space Agency, have conducted many experiments on living organisms, studying their behavior in extraterrestrial conditions, learning to recognize their biosignatures with techniques remotely controllable such as Raman spectroscopy.

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Rivers are undoubtedly the main pathway of waste dispersed in the environment that from land reaches oceans and seas increasing the amount of marine litter. Major cities are a great source of riverine litter as large urbanization can originate pressure on the integrated waste management resulting in litter entering the rivers. Within this study, we aim to investigate the dynamic of floating riverine macrolitter (items >2.

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Since their introduction in the early decades of the 20th century, fluorescent pigments have found progressively wider applications in several fields. Their chemical composition has been optimized to obtain the best physical properties, but is not usually disclosed by the manufacturers. Even the other class of luminescent pigments, namely the phosphorescent ones, is now produced industrially.

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Epiplastic microhabitats for epibenthic organisms: a new inland water frontier for diatoms.

Environ Sci Pollut Res Int

February 2023

Department of Sciences, University of Roma Tre, Viale G. Marconi 446, 00146, Rome, Italy.

Plastic pollution is widespread in each type of ecosystems. However, the colonization events of microorganisms on plastics seem to be neglected in inland waters. Therefore, in this study we analyze the possible colonization on the surface (hereafter epiplastic microhabitats) of two typology of plastic supports by diatom community.

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Acinetobacter baumanni, is an opportunistic nosocomial multi-drug resistant bacterium, which represents a threat for human health. This pathogen is able to persist in intensive care units thanks to its extraordinary resistance towards dehydration, whose mechanisms are unknown and enable it to easily spread through surfaces, contaminating also medical devices. In this article we reveal, with a multimodal approach, based on μ-R Spectroscopy, Gas Chromatography coupled to Mass Spectroscopy, Atomic Force Microscopy and Fluorescence Recovery After Photobleaching, the bio-physical mechanisms that the membrane of two A.

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In the past, the use of face masks in western countries was essentially limited to occupational health. Now, because of the COVID-19 pandemic, mask-wearing has been recommended as a public health intervention. As potential side effects and some contraindications are emerging, we reviewed the literature to assess the impact of them in daily life on patient safety and to provide appropriate guidelines and recommendations.

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Heatwaves are occurring more frequently and are known to affect particularly night-time temperatures. We review here literature on how night-time ambient temperature changes affect body temperature and sleep quality. We then discuss how these temperature effects impact particularly vulnerable populations such as older adults, children, pregnant women, and those with psychiatric conditions.

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Article Synopsis
  • - A patient was found to have a chronic subdural/epidural hematoma along with a large arachnoid cyst in the left frontotemporal area, which were discovered while investigating trigeminal neuralgia and memory issues.
  • - The patient's sudden audioverbal memory impairment is thought to be related to disruptions in brain function due to the hematoma, affecting structures that help regulate arousal.
  • - This case suggests that even with damage to one hemisphere of the brain, audioverbal memory can be compromised without relying on the intact hemisphere, indicating a potential limit for reorganization of memory functions between hemispheres.
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A search for pairs of Higgs bosons produced via gluon and vector boson fusion is presented, focusing on the four b quark final state. The data sample consists of proton-proton collisions at a center-of-mass energy of 13 TeV, collected with the CMS detector at the LHC, and corresponds to an integrated luminosity of 138  fb^{-1}. No deviation from the background-only hypothesis is observed.

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Article Synopsis
  • * More than half of the tested bacterial isolates (54.6%) showed resistance to the antibiotic colistin, but the SUL-DUR combo was mostly effective with low minimum inhibitory concentration (MIC) values.
  • * The research found that only a small number of the isolates (11) were resistant to SUL-DUR, which carried various resistance genes and mutations, marking it as the first study to report on the antimicrobial activity of SUL-DUR against these tough-to-treat infections
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Duckweeds are aquatic plants often used in phytotoxic studies for their small size, simple structure, rapid growth, high sensitivity to pollutants and facility of maintaining under laboratory conditions. In this paper, induced phytotoxic effects were investigated in Lemna minor and Lemna minuta after exposition to silver nitrate (AgNO) and silver nanoparticles stabilized with sodium citrate and L-Cysteine (AgNPs-Cit-L-Cys) at different concentrations (0, 20 and 50 mg/L) and times (7 and 14 days). Lemna species responses were evaluated analyzing plant growth (mat thickness, fresh and dry biomass, relative growth rate - RGR) and physiological parameters (chlorophyll - Chl, malondialdehyde - MDA, ascorbate peroxidase - APX and catalase - CAT).

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