156,388 research outputs found
Locally finite p-groups with all subgroups either subnormal or nilpotent-by-Chernikov
No full textWe pursue further our investigation, begun in [H.~Smith, Groups with all subgroups subnormal or nilpotent-by-{C}hernikov, emph{Rend. Sem. Mat. Univ. Padova} 126 (2011), 245--253] and continued in [G.~Cutolo and H.~Smith, Locally finite groups with all subgroups subnormal or nilpotent-by-{C}hernikov. emph{Centr. Eur. J. Math.} (to appear)] of groups in which all subgroups are either subnormal or nilpotent-by-Chernikov. Denoting by the class of all such groups, our concern here is with locally finite p-groups in the class , where is a prime, while an earlier article provided a reasonable classification of locally finite nb-groups in which all of the p-sections are nilpotent-by-Chernikov. Our main result is that if is a Baer p-group in then is nilpotent-by-Chernikov
Compensation of hysteresis in magnetic field sensors employing Fiber Bragg Grating and magneto-elastic materials
No full textRELATIONSHIPS BETWEEN BONE LOSS AND MICROVASCULAR DAMAGE IN PATIENTS WITH SYSTEMIC SCLEROSIS
No full text[FRI0325] RELATIONSHIPS BETWEEN BONE LOSS AND MICROVASCULAR DAMAGE IN PATIENTS WITH SYSTEMIC SCLEROSIS
Authors: B. Seriolo, C. Pizzorni, A. Casabella, G. Zampogna, A. Sulli, M. Cutolo
Session Info: Scleroderma, myositis and related syndromes
Year: 201
Abdominoplasty after bariatric surgery: Comparison of three different techniques
No full textBACKGROUND: Abdominoplasty after massive weight loss is not a cosmetic procedure. The aim of this study was to compare three different techniques for postbariatric abdominoplasty. METHODS: All postbariatric patients that have undergone abdominoplasty from January 2013 to December 2016 were included in the study. Patients were divided into 3 groups: Subjects who underwent standard procedure were allocated ingroup A; those cases performed using a synthetic glue were assigned to group B; cases performed with an energy device were inserted in group C. Operative time, length of stay and complications were recorded. RESULTS: Seventy-one abdominoplasties were performed in the selected period. Mean operative time was shorter (P<0.01) in group C (94.3±2.7 minutes) than in group A(112.1±16.8 minutes) and in group B (121±13.2 minutes). Mean length of stay was significantly reduced (P<0.01) in group C (2.4±0.7) when compared to group A (3.5±0.6 days) and group B (3.1±0.5 days). Bleeding occurred in 21 (29.5%) patients (15 in group A, 4 in groupB, 3 in group C; P<0.01). Seroma was detected in 22(30.9%) subjects (14 in group A, 2in group B, 6 in group C; P<0.01). Wound dehiscence and umbilical necrosis were recorded in 7 (9.9%) and 9 (12.6%) patients respectively, without statistical differences. CONCLUSIONS: Both synthetic glue and energy device improve outcomes of postbariatric abdominoplasties. The glue reduces rates of bleeding and seroma. The energy deviceimproves intraoperative hemostasis and shortens operative time. copy
Correlations between nailfold microvascular damage and skin involvement in systemic sclerosis patients
No full textObjective: The aim of this study was to identify any correlations between microvascular damage, assessed by nailfold videocapillaroscopy and skin impairment, evaluated by three different methods, the modified Rodnan skin score (mRSS), skin high-frequency ultrasound (US) and the plicometer skin test (PST) in systemic sclerosis (SSc) patients.
Methods: Sixty-three SSc patients and 63 healthy subjects were enrolled. Nailfold videocapillaroscopy (NVC) was used to assess the nailfold capillaroscopy pattern ("Early", "Active" or "Late"), according to the Cutolo classification. All subjects were assessed by mRSS, US and PST to evaluate their dermal thickness (DT) in the seventeen skin areas of the body usually evaluated by mRSS (zygoma, fingers, hands, dorsum of hands, forearms, arms, chest, abdomen, thighs, legs, feet). Statistical evaluation was performed by nonparametric tests.
Results: All the three methods demonstrated progressively higher values of skin impairment in patients with "Early", "Active" or "Late" pattern of nailfold microangiopathy (for mRSS p < 0.01, US p < 0.02 and PST p < 0.02). A positive correlation was also observed in SSc patients between the three methods used to evaluate skin involvement (mRSS vs US, mRSS vs PST, PST vs US, p < 0.0001 respectively).
Conclusions: This study demonstrates that there is a correlation between two of the most important aspects to classify and monitor the SSc patients, i.e. microvascular damage progression (evaluated by NVC) and skin damage (assessed by mRss, US and PST)
Peripheral blood perfusion in patients with systemic lupus erythematosus and in primary Raynaud's phenomenon
No full textObjective: This study aims to evaluate blood perfusion (BP) in various cutaneous regions of the hands and face in patients with systemic lupus erythematosus (SLE) and primary Raynaud's phenomenon (PRP) and healthy subjects (HS).
Methods: A total of 20 patients with SLE, 20 patients with PRP, and 20 HS were enrolled. BP was detected by laser speckle contrast analysis in different regions of the hand and at the facial level. The absolute nailfold capillary number (CN) was assessed by nailfold videocapillaroscopy.
Results: Patients with SLE and PRP had significantly lower BP levels than those of HS in 3 hand areas (fingertip, palm, and periungual; p<0.01). However, the SLE, PRP, and HS groups had comparable BP values at the hand dorsum and face. The BP and CN values revealed a positive correlation in the periungual, fingertip, and palm of hands (p<0.01), only in patients with SLE.
Conclusion: Our data demonstrated a correlation between functional and morphological microvascular impairment in patients with SLE
A note on endomorphisms of hypercentral groups
No full textLet H be a subnormal subgroup of a hypercentral group G. We prove that endomorphisms of G are uniquely determined by their restrictions to H if and only if Hom(G/HG,G)=0, and draw some consequences from this fact
Ocular involvement in systemic sclerosis: A systematic literature review, it's not all scleroderma that meets the eye
No full textObjectives: Systemic sclerosis (SSc) is a rare and complex autoimmune disorder characterized by microvascular damage and progressive fibrosis which affects the skin and multiple other organs. Much of the published data concerning SSc and the eye consists of single case reports or small case studies. This systematic review aims to provide an overview of the current level of evidence for SSc-related ocular changes.
Materials and methods: A systematic literature review was conducted using 3 electronic databases, according to the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) guidelines. A combination of following keywords was used: “Systemic Sclerosis” and ophthalmology-related search terms, including the keywords “Eye”, “Ocular” and “Ophthalmic”. All articles were screened by 2 independent reviewers at title, abstract and full text level. We solely included case-control studies that investigated specific ocular findings in SSc patients compared to healthy controls.
Results: Nine of 270 articles were retained. Dry eye symptoms are associated with SSc, whereas objective signs (Schirmer I testing) show conflicting results. There is insufficient evidence of SSc-related changes to the central corneal thickness. In terms of posterior segment involvement, choroidal vasculature appears to be affected to greater extent than the retinal microcirculation. However, the limited number of patients included in the studies renders it hazardous to draw overall conclusions.
Conclusions: There is a paucity of well-designed case-control studies investigating possible ocular involvement in SSc. Our systematic review demonstrates limited proven associations between SSc and ocular abnormalities, mainly in terms of dry eye symptoms and choroidal thickness. Future standardized prospective studies are needed to clarify the impact of the disease on the eye
A new formulation for modelling porous materials by means of second order deviatoric fabric tensors
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