Search results for "REGENERATION"
showing 10 items of 889 documents
What are the biological determinants of regeneration of perennial weeds? Effect of fragment weight and bud number on the regrowth of five perennial w…
2022
Perennial weeds have become an increasing problem with the reduction of herbicide use andtillage. Because of their capacity to regenerate from vegetative organs, such as roots andrhizomes, they must be controlled with different management techniques than annuals. Todate, few studies exist on this topic and farmers often lack solutions to control perennials intheir cropping systems. Management strategies must focus on the depletion of theregenerative organ reserves to hamper the production of new shoots. However, there is aneed for a better understanding of below-ground organs physiology and the determiningfactors of their regrowth capacities.Our aim was to assess the number of shoots and th…
Possible Implications for Improved Osteogenesis? The Combination of Platelet-Rich Fibrin With Different Bone Substitute Materials
2021
Bone substitute materials (BSM) are widely used in oral regeneration, but sufficient angiogenesis is crucial for osteogenesis. The combination of BSM with autologous thrombocyte concentrations such as platelet-rich fibrin (PRF) may represent a clinical approach to overcome this limitation. This study analyzes the early influence on osteoblast (HOB) in vitro. Here, four different BSM (allogeneic, alloplastic, and two of xenogeneic origin) were combined with PRF. After the incubation with osteoblasts for 24 h, cell viability, migration, and proliferation were assessed. Next, marker of proliferation, migration, and differentiation were evaluated on gene and protein levels in comparison to the …
Validation of a Portuguese version of the Groningen radiotherapy-induced xerostomia questionnaire
2022
The aim of this study was to validate and determine at pretest level the reliability of the Portuguese version of the Groningen radiotherapy-induced xerostomia questionnaire. This study employed 37 head and neck cancer patients. Each patient signed an informed consent and responded to the Portuguese version of the questionnaire in the form of an interview. This was repeated again after 2 weeks. A standard single question provided a validity check. Data were analyzed using Cronbach?s ? to test its reliability and total and interitem correlation, and intraclass correlation to determine its internal consistency and test-retest reliability. Construct validity supported by objective measurements…
Urban drinking and driving:comparison of electric scooter and bicycle related accidents in facial fracture patients
2022
In recent years, electric scooters (e-scooter) have emerged as an alternative mode of urban transport due to their availability and effortless use. However, e-scooter-related trauma and injuries, especially to the head, have received wide media coverage and raised public concern about their safety. We aim to determine and compare clinically relevant variables, incidence, and severity between bicycle and e-scooter-related facial fractures and potential protective measures for injury prevention. This retrospective study comprised all patients admitted to a tertiary trauma center with bicycle or e-scooter-related facial fractures between January 2019 and October 2020. Patient- and injury-relat…
Pharmacogenomic identification of small molecules for lineage specific manipulation of subventricular zone germinal activity
2017
Strategies for promoting neural regeneration are hindered by the difficulty of manipulating desired neural fates in the brain without complex genetic methods. The subventricular zone (SVZ) is the largest germinal zone of the forebrain and is responsible for the lifelong generation of interneuron subtypes and oligodendrocytes. Here, we have performed a bioinformatics analysis of the transcriptome of dorsal and lateral SVZ in early postnatal mice, including neural stem cells (NSCs) and their immediate progenies, which generate distinct neural lineages. We identified multiple signaling pathways that trigger distinct downstream transcriptional networks to regulate the diversity of neural cells …
The Role of Physical Exercise and Rehabilitative Implications in the Process of Nerve Repair in Peripheral Neuropathies: A Systematic Review
2023
Background: The various mechanisms involved in peripheral nerve regeneration, induced by exercise and electrical nerve stimulation, are still unclear. Objective: The aim of this review was to summarize the influence of physical exercise and/or electrical stimulation on peripheral nerve repair and regeneration and the variation of impact of intervention depending on timing, as well as kind and dosage of the intervention. A literature survey was conducted on PubMed, Scopus, and Web of Science, between February 2021 to July 2021, with an update in September 2022. Methodology: The literature search identified 101,386 articles with the keywords: “peripheral nerve” OR “neuropathy” AND “sprouting”…
La Sicilia dei centri minori: Above the clouds nella Valle di Bolognetta : architettura, arti performative e nuovi immaginari
2021
Il lavoro elaborato dal Gruppo di ricerca LabCity Architecture sulla rigenerazione dei piccoli centri rurali del territorio siciliano, vittime della crisi economica e demografica di quest’ultimo decennio, evidenzia l’urgenza di un ripensamento delle strategie di intervento in questi luoghi con forti potenzialità territoriali, patrimoniali e culturali, proponendo progetti di ricerca-azione in sinergia con le comunità locali coinvolte. La recente emergenza sanitaria causata dalla pandemia da Covid-19 ha evidenziato l’esigenza di una ricerca mirata ad individuare i caratteri e le esigenze specifiche soprattutto dei centri minori, destinatari di politiche e di interventi spesso inadeguati. In q…
Augmented Cities in Post-pandemic Age
2020
The effects of the Anthropocene are mainly urban, because the cities with their expansion have devoured the natural soil, the identity structures of the cultural palimpsests and the vegetable plots of the cities, invading delicate natural ecosystems, awakening and expanding diseases previously confined and separated in the wild environments. How to get out of the planetary environmental crisis, which is above all an urban habitats’ crisis? The answer, therefore, can only be urban, acting on a rethinking of cities as places of living in balance with other living species, in homeostasis with the planet. Especially in Europe, we must update the idea of cities as privileged places of public hea…
PAESAGGI IN TRASFORMAZIONE: LA RIGENERAZIONE DEL BACINO MINERARIO DEL NORD PAS DE CALAIS L’iscrizione Unesco e la costruzione della strategia generale
2017
L’attività mineraria, al pari di un evento sismico, rappresenta per il territorio una ferita difficile da rimarginare. I luoghi coinvolti assistono al radicale mutamento dei loro paesaggi, alla trasformazione della loro geografia, alla rottura degli equilibri che per secoli avevano sostenuto la loro economia e società. Questa condizione si aggrava ancor di più a seguito della dismissione delle attività, quando il sistema economico della monocoltura mineraria non costituisce più una risorsa e al suolo rimangono i segni di ciò che era stata l’industria estrattiva. I resti fisici dell’attività industriale iniziano, però, dopo alcuni anni, a esercitare un senso di fascinazione sulla stessa soci…
New high-sensitivity searches for neutrons converting into antineutrons and/or sterile neutrons at the HIBEAM/NNBAR experiment at the European Spalla…
2021
Abstract The violation of baryon number, B , is an essential ingredient for the preferential creation of matter over antimatter needed to account for the observed baryon asymmetry in the Universe. However, such a process has yet to be experimentally observed. The HIBEAM/NNBAR program is a proposed two-stage experiment at the European Spallation Source to search for baryon number violation. The program will include high-sensitivity searches for processes that violate baryon number by one or two units: free neutron–antineutron oscillation ( n → n ̄ ) via mixing, neutron–antineutron oscillation via regeneration from a sterile neutron state ( n → [ n ′ , n ̄ ′ ] → n ̄ ), and neutron disappearan…