195 research outputs found
La colonia di Sena Gallica: un progetto abbandonato?
Il contributo presenta le novità derivanti dalle più recenti ricerche condotte a Senigallia.
Grazie ad una Convenzione tra Università di Bologna, Soprintendenza per i Beni Archeologici delle Marche e Comune di Senigallia è stato possibile effettuare nuove ricerche e
nuovi scavi archeologici. Il quadro che emerge è del tutto differente rispetto a quanto finora
noto in letteratura: la prima colonia maritima in Adriatico, infatti, sembra piuttosto aver la
forma e le dimensioni di una colonia Latina, sul modello di quanto avverrà, un ventennio
dopo, nella colonia di Ariminum. È probabile che Roma adotti, nella sua ‘politica adriatica’,
una nuova forma di città.The paper presents some new data resulting from the most recent research carried out in
Senigallia by the University of Bologna. Thanks to a special agreement with the Soprintendenza
per i Beni Archeologici delle Marche and the Municipality of Senigallia, new research and
archaeological digs are in progress. The results obtained reveal a frame completely different compared
to the previous knowledge. In fact, the first colonia maritima on the Adriatic Sea seems
to reveal shape and size of a colonia Latina, recalling the same situation which, 20 years later,
characterizes the colonia of Ariminum. The new gained knowledge allows us to hypothesize
that Rome adopted a new city’s model in its ‘Adriatic policy’
Dekoracija Augusteuma iz Narone
U tekstu je obrađena dekoracija Augusteuma iz Narone u odnosu na dosad
poznatu rimsku arhitekturu
Geo-archaeology of the Roman palaeosurface of Sena Gallica (Senigallia, Italy)
ABSTRACTSena Gallica (Senigallia), in the northern Marche region, was the first Roman colony on the Adriatic coast founded at the beginning of the third century BC. This research adopted an integrated approach to different information sources that combines old and new data, archaeological excavations, topographic and geophysical surveys, and geological and geomorphological analyses. The data are managed within a GIS and supported by 3D modelling. One of the results of this work is a map which represents the geomorphological setting of the Roman colony, close to the mouth of the Misa river. The settlement exploited the top-surface of the uppermost Pleistocene–early Holocene coastal fan of the Misa river, now only preserved at the apex sector truncated seaward by wave erosion. The top-surface of the fan apex, in turn, was partly re-incised by stream erosion producing a series of slight topographic mounds, which were selected for the earliest human settlement (V-IV c. BC). Some of the mounds resulted in a pr..
Application of Vibrational Spectroscopies in the Qualitative Analysis of Gingival Crevicular Fluid and Periodontal Ligament during Orthodontic Tooth Movement
Optical vibrational techniques show a high potentiality in many biomedical fields for their characteristics of high sensitivity in revealing detailed information on composition, structure, and molecular interaction with reduced analysis time. In the last years, we have used these techniques for investigating gingival crevicular fluid (GCF) and periodontal ligament (PDL) during orthodontic tooth treatment. The analysis with Raman and infrared signals of GCF and PDL samples highlighted that different days of orthodontic force application causes modifications in the molecular secondary structure at specific wavenumbers related to the Amide I, Amide III, CH deformation, and CH3/CH2. In the present review, we report the most relevant results and a brief description of the experimental techniques and data analysis procedure in order to evidence that the vibrational spectroscopies could be a potential useful tool for an immediate monitoring of the individual patient's response to the orthodontic tooth movement, aiming to more personalized treatment reducing any side effects
Acute abdomen as a consequence of an unusual suicide attempt: intra-abdominal injection of sulfuric acid
Caustic ingestion is a common cause of life-threatening upper gastrointestinal tract injuries. It mostly happens in children as accidental exposure, but may occur in adults as a result of suicide attempt. We present a case of an acute abdomen that occurred after a peculiar way of self-administration of sulfuric acid as a suicide attempt in an adult psychiatric male patient, already known for self-harm with caustic agents in the previous years. In a few hours, the patient developed diffuse peritonitis, pneumoperitoneum, and a rapid hemodynamic deterioration, as a consequence of ileum and sigmoid necrosis, requiring an emergency surgery with the application of a damage control strategy. The patient was then transferred to intensive care unit for hemodynamic stabilization, and definitive surgical correction of the abdominal lesions was performed after 3 days with Hartmann procedure. Thirty-nine days after hospital admission, the patient was discharged. In conclusion, to our knowledge, never has been reported in the literature a case of intra-abdominal self-administration of caustic substance causing a rapid evolution of clinical conditions and requiring the application of damage control strategy
Evaluation of Proton-Induced Biomolecular Changes in MCF-10A Breast Cells by Means of FT-IR Microspectroscopy
Radiotherapy (RT) with accelerated beams of charged particles (protons and carbon ions),
also known as hadrontherapy, is a treatment modality that is increasingly being adopted thanks to the
several benefits that it grants compared to conventional radiotherapy (CRT) treatments performed
by means of high-energy photons/electrons. Hence, information about the biomolecular effects in
exposed cells caused by such particles is needed to better realize the underlying radiobiological
mechanisms and to improve this therapeutic strategy. To this end, Fourier transform infrared
microspectroscopy (-FT-IR) can be usefully employed, in addition to long-established radiobiological
techniques, since it is currently considered a helpful tool for examining radiation-induced cellular
changes. In the present study, MCF-10A breast cells were chosen to evaluate the effects of proton
exposure using -FT-IR. They were exposed to different proton doses and fixed at various times
after exposure to evaluate direct effects due to proton exposure and the kinetics of DNA damage
repair. Irradiated and control cells were examined in transflection mode using low-e substrates that
have been recently demonstrated to offer a fast and direct way to examine proton-exposed cells. The
acquired spectra were analyzed using a deconvolution procedure and a ratiometric approach, both of
which showed the different contributions of DNA, protein, lipid, and carbohydrate cell components.
These changes were particularly significant for cells fixed 48 and 72 h after exposure. Lipid changes
were related to variations in membrane fluidity, and evidence of DNA damage was highlighted.
The analysis of the Amide III band also indicated changes that could be related to different enzyme
contributions in DNA repair
FT-IR Transflection Micro-Spectroscopy Study on Normal Human Breast Cells after Exposure to a Proton Beam
Fourier transform infrared micro-spectroscopy (mu-FT-IR) is nowadays considered a valuable tool for investigating the changes occurring in human cells after exposure to ionizing radiation. Recently, considerable attention has been devoted to the use of this optical technique in the study of cells exposed to proton beams, that are being increasingly adopted in cancer therapy. Different experimental configurations are used for proton irradiation and subsequent spectra acquisition. To facilitate the use of mu-FT-IR, it may be useful to investigate new experimental approaches capable of speeding up and simplifying the irradiation and measurements phases. Here, we propose the use of low-e-substrates slides for cell culture, allowing the irradiation and spectra acquisition in transflection mode in a fast and direct way. In recent years, there has been a wide debate about the validity of these supports, but many researchers agree that the artifacts due to the presence of the electromagnetic standing wave effects are negligible in many practical cases. We investigated human normal breast cells (MCF-10 cell line) fixed immediately after the irradiation with graded proton radiation doses (0, 0.5, 2, and 4 Gy). The spectra obtained in transflection geometry showed characteristics very similar to those present in the spectra acquired in transmission geometry and confirm the validity of the chosen approach. The analysis of spectra indicates the occurrence of significant changes in DNA and lipids components of cells. Modifications in protein secondary structure are also evidenced
CD4+ T Cell Defects in a Mulibrey Patient With Specific TRIM37 Mutations
Mulibrey (muscle-liver-brain-eye) syndrome (MUL) is an autosomal recessive disorder
caused by mutations in the TRIpartite motif (TRIM)37 gene, encoding for TRIM37 a
member of the TRIM E3 ubiquitin ligase protein family. MUL patients are characterized
by growth retardation, dysmorphic features, and a wide range of abnormalities affecting
different organs. However, T-cell abnormalities have not been observed in MUL subjects,
to date. Here we described the immunological features of a MUL child carrying recently
identified TRIM37 mutations, a 17q22 deletion of maternal origin combined with a
TRIM37 variant of paternal origin. Here we found quantitative and functional defects in
CD4+ T cells fromthisMUL case. Low levels of TRIM37 protein were specifically detected
in CD4+ T cells ofMUL patient and associated with their altered proliferation and cytokine
production. Of note, both CD4+ and CD8+ T lymphocytes of MUL child displayed an
effector memory phenotype compared with healthy children. This clinical case research
highlighted the possible role of TRIM37 in the control of immune cell number and function,
especially in CD4+ T cells. Finally, this study may contribute to the novel mechanistic
studies aim of identifying, in depth, the role of the TRIM37 protein in the immune system
Green and scalable synthesis of nanocrystalline kuramite
The new generation of solar cells aims to overcome many of the issues created by silicon-based devices (e.g., decommissioning, flexibility and high-energy production costs). Due to the scarcity of the resources involved in the process and the need for the reduction of potential pollution, a greener approach to solar cell material production is required. Among others, the solvothermal approach for the synthesis of nanocrystalline Cu-Sn-S (CTS) materials fulfils all of these requirements. The material constraints must be considered, not only for the final product, but for the whole production process. Most works reporting the successful synthesis of CTS have employed surfactants, high pressure or noxious solvents. In this paper, we demonstrate the synthesis of nanocrystalline kuramite by means of a simpler, greener and scalable solvothermal synthesis. We exploited a multianalytical characterization approach (X-ray diffraction, extended X-ray absorption fine structure, field emission scanning electron microscopy, Raman spectroscopy and electronic microprobe analysis (EMPA) to discriminate kuramite from other closely related polymorphs. Moreover, we confirmed the presence of structural defects due to a relevant antisite population
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