86,679 research outputs found
Induction machine stator fault on-line diagnosis based on LabVIEW environment
No full textThe benefits of machine condition monitoring have been widely recognized as superior with respect to other alternative maintenance approaches. As matter of fact, condition monitoring is an operational strategy for machine integrity assessment, fault identification and life extension. The cost-benefit ratio will be reduced in progress owing to the commercial diagnostic environment availability. This paper presents the implementation of a diagnostic procedure to detect induction machine stator faults based on LabVIEW environment. The diagnosis is performed by using a suitable neural network, trained by faulted machine simulator, that has, as input variables, the negative sequence current component and the variation of the positive sequence current component between actual and healthy machine conditions. The statement of a trigger threshold that discerns between true faults and intrinsic disymmetry of the machine is discussed as well
Induction machine stator faults on-line diagnosis based on LabVIEW environment
No full textBari, Italia
Prostate-specific membrane antigen (PSMA) radioguided surgery in prostate cancer: An overview of current application and future perspectives
No full textRadical prostatectomy (RP) with or without pelvic lymph node dissection (PLND) is the most frequent approach to treat men affected by prostate cancer (PCa), together with primary radiotherapy. Generally, patients performed computed tomography (CT) and bone scintigraphy to stage the disease prior to surgery. However, specific inhibitors directed to the prostate-specific membrane antigen (PSMA) have been recently proposed as radiopharmaceutical for positron emission tomography (PET) imaging. PSMA-PET proved higher diagnostic accuracy to stage high-risk PCa compared to conventional imaging, even if its impact on overall survival is yet to be confirmed. One of the main limitations for PSMA-PET in staging PCa is represented by the low sensitivity in identifying metastatic lymph node, namely in case of nodes smaller than 4–5 mm. Radioguided surgery (RGS) is based on the intraoperative detection of radiation emitted by the specific radiopharmaceutical. Recently, the possibility of performing RGS using cancer-specific radiotracer with high diagnostic accuracy (e.g. PSMA inhibitors) gained attention. In this review, we aimed to explore the value of PSMA-RGS in PCa, aimed at improving the surgery accuracy to remove nodal metastasis. Furthermore, we evaluated different radiation detectors (gamma rays probes vs. beta positron probes) and the diagnostic accuracy of these probes compared to PSMA-PET. A comprehensive literature review was performed in December 2022 with a non-systematic approach. After the first literature screening, a total of 16 studies have been selected and a comprehensive qualitative narrative synthesis of the articles has been performed. First studies showed promising results for PSMA-RGS, and prospective trials demonstrated good concordance of in vivo PSMA-positive detected nodes with histopathology analysis of the specimens. High sensitivity and specificity of the RGS approach were found. Whilst gamma probes have been more broadly explored, the clinical use of beta probes has been tested in feasibility studies only. Finally, Cerenkov luminescence imaging, micro-image guidance and augmented reality/virtual reality approaches in surgery are currently rising attention and are generating future perspectives for PSMA-guided surgery in PCa
Variations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
[Newspaper Clipping: Author Claims Evidence of Second JFK Assassin #1]
No full textNewspaper article titled "Author Claims Evidence of Second JFK Assassin." The article states that author Richard J. Whalen concluded "that there is circumstantial evidence to support the theory of a second assassin in the shooting of President John F. Kennedy.
Also By The Same Author: AKTiveAuthor, a Citation Graph Approach to Name Disambiguation
No full textThe desire for definitive data and the semantic web drive for inference over heterogeneous data sources requires co-reference resolution to be performed on those data. In particular, name disambiguation is required to allow accurate publication lists, citation counts and impact measures to be determined. This paper describes a graph-based approach to author disambiguation on large-scale citation networks. Using self-citation, co-authorship and document source analyses, AKTiveAuthor clusters papers, achieving precision of 0.997 and recall of 0.818 over a test group of eight surname clusters
John F. Kennedy telegram to Roosevelt
No full textJersey Homesteads (later the Borough of Roosevelt) was established in the 1930s as an agro-industrial cooperative community. It was established specifically for urban Jewish garment workers, many of whom had emigrated from Europe. President John F. Kennedy sent a telegram to the citizens of Roosevelt, New Jersey, apologizing for not being able to attend the memorial dedication in honor of former President Franklin Delano Roosevelt. (Jersey Homesteads became Roosevelt in 1945 in honor of the president.) President Kennedy expressed his gratitude to the people of Roosevelt for constructing the memorial, and commented that it will serve as a constant reminder of Roosevelt's good works
Logarithmic variance profiles and the corresponding f-1 spectra of temperature fluctuations in turbulent Rayleigh-Bénard convection
No full textWe report experimental results for the temperature variance 2(z) and the corresponding frequency spectra P(f) in turbulent Rayleigh-Bénard convection (RBC) in a cylindrical sample of aspect ratioT= D/L = 1:00 (D = 1:12 m is the diameter and L = 1:12 m the height). The measurements were conducted in the Rayleigh-number range 1011 < Ra < 1:35 1014 and Pr ' 0:8. For Ra = 1:35x1014, 2(z) could be described well by a logarithmic dependence on the vertical position z in a range of z 1 < z < z 2 with z 1 ' 70 and z 2 = 0:1L. Here L=(2Nu) is the thickness of a thin thermal sublayer adjacent to the horizontal plate where the heat flux (denoted by the Nusselt number Nu) is carried mostly by thermal diffusion. In the log layer, we found that the temperature spectra had a significant frequency range over which P(f) f with close to 1. As Ra decreased, increased so that the log layer became thinner. At Ra = 2:05 1011, z 2 < z 1 and therefore there was no range for a log layer. Correspondingly, the temperature spectrum near the horizontal plate did not have the f1 scaling form either
Maine author Franklin F. Gould recalls his first glimpse of the outside world
No full textMaine author Franklin F. Gould recalls his first glimpse of the outside world as he relates how, as a young farm boy in the late 1800\u27s, he drove his father\u27s horses on an errand to an icebound river
Anticholinergic Drug Use and Negative Outcomes Among the Frail Elderly Population Living in a Nursing Hom
No full textAIM:
Increasing evidence from experimental studies and clinical observations suggests that drugs with anticholinergic properties can cause physical and mental impairment. The aim of the present study was to evaluate the relationship between the use of drugs with anticholinergic activity and negative outcomes in older nursing home residents.
METHODS:
We used data from the database of the U.L.I.S.S.E project (Un Link Informatico sui Servizi Sanitari Esistenti per l'Anziani), a prospective multicenter observational study. Patients from 31 facilities in Italy were assessed at baseline and at 6 and 12 months by trained personnel, using the Minimum Data Set for Nursing Home (MDS-NH). The only exclusion criterion was age younger than 65 years. The Anticholinergic Risk Scale (ARS), a list of commonly prescribed drugs with potential anticholinergic effects, was used to calculate the anticholinergic load.
RESULTS:
A total population of 1490 patients was analyzed; almost half of the sample (48%) was using drugs with anticholinergic properties. The population of patients with ARS 1 or higher had a higher comorbidity index (P < .003) and greater cognitive impairment (CPS 5-6) (P < .007). They were more likely to suffer from heart failure, Parkinson disease, depression, anxiety, and schizophrenia. In multivariate analysis, a higher score in the ARS scale was associated with a greater likelihood of functional decline (described as the loss of ≥1 ADL point) (odds ratio [OR] 1.13; confidence interval [CI] 1.03-1.23), to a higher rate of falls (OR 1.26; CI 1.13-1.41), and to a higher incidence of delirium (OR 1.16; CI 1.02-1.32) during a 1-year follow-up.
CONCLUSIONS:
The use of medications with anticholinergic properties is common among older nursing home residents. Our results suggest that among older nursing home residents the use of anticholinergic drugs is associated with important negative outcomes, such as functional decline, falls, and delirium
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