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1.
G Chir ; 41(1): 131-135, 2020.
Article in English | MEDLINE | ID: mdl-32038025

ABSTRACT

Athletic pubalgia presents with groin and/or pubic pain mainly in athletes. The purpose of this review is to analyze, by evaluating current literature, the clinical examination and differential diagnosis of athletic pubalgia, in an effort to better understand this clinical entity. Diagnosis is challenging due to the anatomical complexity of the groin area, the biomechanics of the pubic Romasymphysis region and the large number of potential sources of groin pain. Clinical examination and medical history are of utmost importance. Differential diagnosis includes intra-and-extra-articular hip and intra-abdominal pathology, as well as non-myoskeletal disorders, such as femoroacetabular impingement (FAI), acetabular labral tears, osteitis pubis, adductor muscles injuries and true inguinal hernia. A thorough clinical examination should be performed in such cases, including the "Resisted sit-up" and the "Single or Bilateral Resisted Leg Adduction" test. Regarding imaging, Magnetic resonance imaging (MRI) should be performed when athletic pubalgia is suspected, especially in athletes. Other imaging techniques, such as plain radiographs and ultrasonography may add to the diagnostic process.


Subject(s)
Abdominal Pain/diagnosis , Athletes , Groin , Physical Examination/methods , Acetabulum/injuries , Diagnosis, Differential , Femoracetabular Impingement/diagnosis , Groin/diagnostic imaging , Hernia, Inguinal/diagnosis , Humans , Magnetic Resonance Imaging/methods , Medical History Taking , Muscle, Skeletal/injuries , Osteitis/diagnosis , Pubic Symphysis , Radiography , Ultrasonography
2.
Life Sci Space Res (Amst) ; 21: 49-64, 2019 May.
Article in English | MEDLINE | ID: mdl-31101155

ABSTRACT

The pumice volcanic samples could have possible connections to the evolution of life and give us insight about their bio-geochemical processes related. In this regard, the samples from the volcanic eruption from La Restinga (El Hierro, Spain) in 2011 have been mainly studied by means of Raman spectroscopy. The research also includes analysis of XRD, Scanning Electron Microscopy and Optical Microscopy to support the Raman analysis. The results show that the Raman methods and mineral analyses are in strong agreement with the results obtained from other authors and techniques. The internal white foamy core (WFC) of the studied pumice samples shows amorphous silica, Fe-oxides, Ti-oxides, quartz, certain sulfates, carbonates, zeolites and organics. On the other hand, the external part (dark crust - DC) of these samples mainly presents primary-sequence mineralogy combined with some secondary alteration minerals such as olivine, feldspar, pyroxene, amorphous silica, and Fe-oxide. Raman spectroscopy detected other minerals not yet reported on these samples like barite, celestine and lepidocrocite. Also, the different chemometric and calibration methods for Raman spectroscopy in elemental composition, mineral classification and structural characterization has been successfully applied. From the astrobiological perspective, the research was also complemented with comparisons to other similar samples from terrestrial analogs. The main consideration was taking into account the proposed hypothesis regarding the potential behavior of the pumice as a substrate for the evolution of life. Furthermore, the detailed analysis from La Restinga eruption is coherent with the mineral phases and processes discussed from previous literature. The white internal part fulfills the conditions to work as an organic reservoir, confirmed by the detection of organic matter and selected minerals that could be used as energy sources for bacterial communities. The external layers of the samples work as a shielding layer to protect the organics from decay in extreme conditions. Finally, here we have demonstrated that the characteristics and advantages of Raman spectroscopy could help to assess and understand the possible biogenicity and alteration processes of any geological sample to be found on Mars.


Subject(s)
Exobiology , Geologic Sediments/analysis , Minerals/analysis , Spectrum Analysis, Raman/methods , X-Ray Diffraction
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