67 research outputs found
383: Efficacy and safety of slow release dinoprostone insert for induction of labor: Correlation with parity
No full textASO Author Reflections: Amid Anatomic Restrictions, Three-Dimensional Surgical Planning Eases En Bloc Resection of the Retro-Hepatic Vena Cava and the Caudate Lobe of the Liver
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Overtopping metrics and coastal safety: A case of study from the catalan coast
No full textDesign criteria for coastal defenses exposed to wave overtopping are usually assessed by mean overtopping discharges and maximum individual overtopping volumes. However, it is often difficult to give clear and precise limits of tolerable overtopping for all kinds of layouts. A few studies analyzed the relationship between wave overtopping flows and hazard levels for people on sea dikes, confirming that one single value of admissible mean discharge or individual overtopping volume is not a sufficient indicator of the hazard, but detailed characterization of flow velocities and depths is required. This work presents the results of an experimental campaign aiming at analyzing the validity of the safety limits and design criteria for overtopping discharge applied to an urbanized stretch of the Catalan coast, exposed to significant overtopping events every stormy season. The work compares different safety criteria for pedestrians. The results prove that the safety of pedestrians on a sea dike can be still guaranteed, even for overtopping volumes larger than 1,000 L/m. Sea storms characterized by deep-water wave height between 3.6 and 4.5 m lead to overtopping flow depth values larger than 1 m and flow velocities up to 20 m/s. However, pedestrian hazard is proved to be linked to the combination of overtopping flow velocity and flow depth rather than to single maximum values of one of these parameters. The use of stability curves to assess people's stability under overtopping waves is therefore advised.Environmental Fluid Mechanic
SUTURELESS CLOSURE OF 23- AND 25-GAUGE LEAKING SCLEROTOMIES WITH THE SCLERAL NEEDLING TECHNIQUE
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Clear Cell Carcinoma of the Endometrium Causing Paraneoplastic Retinopathy: Case Report and Review of the Literature
No full textWe reviewed the literature for cases in which gynecologic malignancies caused paraneoplastic retinopathy and ultimately led to blindness. Twenty-eight cases were derived from the literature, and one unique case is described from our institution. Of these 28 cases, 14 patients were diagnosed with endometrial cancer, 7 with ovarian cancer, 5 with cervical cancer, 1 fallopian tube cancer and 1 with concomitant endometrial and ovarian cancers. The average age of patients at the time of diagnosis was 64 years (range, 35–89 years). Typically, ocular manifestations antedate symptoms of the underlying carcinoma by 3–12 months. Information regarding the interval from visual symptoms to time of death is limited, but ranges from several months to several years. Our report is the first to document a clear cell carcinoma of the endometrium causing paraneoplastic retinopathy and is the first to review all gynecologic malignancies associated with visual paraneoplastic syndromes
Smoothed particle hydrodynamics compared to finite volume methods in highly turbulent flow: a three-dimensional analysis of a marine propeller jet case
No full textThis article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in D. Ferraro, J. M. Domínguez, A. Lauria, C. Altomare, F. Aristodemo; Smoothed particle hydrodynamics compared to finite volume methods in highly turbulent flow: A three-dimensional analysis of a marine propeller jet case. Physics of Fluids 1 March 2025; 37 (3): 035152. https://doi.org/10.1063/5.0256484 and may be found at https://doi.org/10.1063/5.0256484.This study presents a comparative analysis between Smoothed Particle Hydrodynamics (SPH) and Finite Volume Methods (FVMs) in simulating highly turbulent flows, focusing on a three-dimensional marine propeller jet case. The mesh-free particle-based approach and the grid-based one are evaluated for their ability to resolve complex flow structures, such as tip vortices, wake dynamics, and turbulence-induced instabilities. This paper highlights the well-established computational framework of FVM while addressing gaps in the technical literature concerning SPH, providing a guidance on computational domain construction and boundary conditions. The comparison explores key flow characteristics, including the velocity and vorticity fields, and evaluates the consistency of results between the two methods. Additionally, time-frequency analyses using Fourier and wavelet transforms of a representative velocity signal are employed to assess the methods' abilities to capture both primary and secondary harmonics. The primary goal of this study is, then, to demonstrate the potential of SPH in accurately simulating highly dynamic flows, offering valuable insight for advancing numerical simulations of marine propeller-induced flows and other turbulent fluid–structure interactions. This study provides insight into the modeling of key characteristics of the near flow field of the propeller jet wake, including the formation of tip vortices and wake structures. The SPH simulations demonstrate satisfactory agreement with FVM results in capturing the main features of the instantaneous streamwise and spanwise velocity and vorticity fields.Peer ReviewedPostprint (author's final draft
Synthesis and x-ray crystal structure of meso-5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane-1,8-di- (1-methyl-naphthalene).
No full textThe pendant-arm macrocycle, meso-5,5,7,12,12,14-hexamethy 1,4,8,11-tetraazacyclotetradecane- 1,8-di-(1-methylnaphthalene) has been synthesized and its single crystal structure determined. The molecule crystallizes in a primitive monoclinic cell, with the space group P2(1)/a (#14). The cell dimensions are a = 10.778(3)Angstrom, b = 13.809(3) Angstrom, c = 11.420(2) Angstrom, There Exists = 102.49(2)degrees, volume = 1659.5(6) Angstrom(3).PT: J; CR: *MOL STRUCT CORP, 1997, TEXS WIND VERS 1 05 ALTOMARE A, 1993, J APPL CRYSTALLOGR, V26, P343 BEURSKENS PT, 1994, DIRDIF 94 PROGRAM SY BISSESSUR R, 2001, CHEM COMMUN 0907, P1598 COLLIN JP, 1987, J CHEM SOC CHEM COMM, P1075 COSTAMAGNA J, 2000, COORDIN CHEM REV, V196, P125 COX JPL, 1989, J CHEM SOC CHEM COMM, P797 CURTIS NF, 1964, J CHEM SOC, P2644 DOUGLAS BD, 1978, INORGANIC SYNTHESIS, V18, P10 HAINES RI, 2001, CAN J CHEM, V79, P54 HAINES RI, 2001, J INORG BIOCHEM, V85, P1 HAINES RI, 2001, REV INORG CHEM, V21, P165 HAINES RI, 2002, TRANSIT METAL CHEM, V27, P284 KIMURA E, 1985, J CHEM SOC CHEM COMM, P385 MCAULEY A, 2000, COORDIN CHEM REV, V200, P75 MORPHY JR, 1989, J CHEM SOC CHEM COMM, P792 WAINWRIGHT KP, 1997, COORDIN CHEM REV, V166, P35; NR: 17; TC: 0; J9: MOLECULES; PG: 8; GA: 670NASource type: Electronic(1
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