1,119 research outputs found

    The Role of a Multidisciplinary Approach in Gender Affirmation Surgery: What to Expect and Where Are We Currently?

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    Gender Affirmation Surgeries (GASs), erstwhile called Sex Reassignment Surgeries (SRSs), may be necessary for transgender individuals to change their bodily sexual characteristics and thereby affirm their gender identity. GASs encompass all medically necessary interventions to relieve gender dysphoria and should be available to patients who wish to, and who meet the surgical criteria of the World Professional Association for Transgender Health (WPATH) and Standards of Care (SOC). The comprehensive clinical assessment involves many health specialists, including general practitioners, psychologists, psychiatrists, speech therapists, endocrinologists, surgeons, anesthesiologists, nurses, and other healthcare professionals. To define the patients’ complex care needs and their objectives, high-volume specialized centers, accredited training programs, skilled surgeons and health professionals specializing in transgender care within a multidisciplinary team are essential. Currently, the most prominent challenges are related to ethical issues such as the treatment of underage individuals, fertility, parenting and the potential for regret after GAS. Finally, although GAS has been practiced for more than half a century, data on long-term follow-up represents a further topic for investigation

    Characterization of fast-twitch and slow-twitch skeletal muscles of calsequestrin 2 (CASQ2)-knock out mice: unexpected adaptive changes of fast-twitch muscles only

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    This study investigates the functional role of calsequestrin 2 (CASQ2) in both fast-twitch and slow-twitch skeletal muscles by using CASQ2 12/ 12 mice; CASQ2 is expressed throughout life in slow-twitch muscles, but only in the developmental and neonatal stages in fast-twitch muscles. CASQ2 12/ 12 causes increase in calsequestrin 1 (CASQ1) expression, but without functional changes in both muscle types. CASQ2 12/ 12 mice have ultrastructural changes in fast-twitch muscles only, i.e., formation of pentads and stacks in the sarcoplasmic reticulum

    Original Article Regional differences of energetics, mechanics, and kinetics of myosin cross-bridge in human ureter smooth muscle

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    Abstract: This study provides information about baseline mechanical properties of the entire muscle and the molecular contractile mechanism in human ureter smooth muscle and proposed to investigate if changes in mechanical motor performance in different regions of isolated human ureter are attributable to differences in myosin crossbridge interactions. Classic mechanical, contraction and energetic parameters derived from the tension-velocity relationship were studied in ureteral smooth muscle strips oriented longitudinally and circularly from abdominal and pelvic human ureter parts. By applying of Huxley's mathematical model we calculated the total working crossbridge number per mm 2 (Ψ), elementary force per single crossbridge (Π 0 ), duration of maximum rate constant of crossbridge attachment 1/f 1 and detachment 1/g 2 and peak mechanical efficiency (Eff. max ). Abdominal longitudinal smooth muscle strips exhibited significantly higher maximum isometric tension and faster maximum unloaded shortening velocity compared to pelvic ones. Contractile differences were associated with significantly higher crossbridge number per mm 2 . Abdominal longitudinal muscle strips showed a lower duration of maximum rate constant of crossbridge attachment and detachment and higher peak mechanical efficiency than pelvic ones. Such data suggest that the abdominal human ureter showed better mechanical motor performance mainly related to a higher crossbridge number and crossbridge kinetics differences. Such results were more evident in the longitudinal rather than in the circular layer

    Surgical approach to adrenal ganglioneuroma: Case report and literature review

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    Objective: Ganglioneuroma (GN) is a benign tumor with a slow growth that can originate from any paravertebral sympathetic plexus. It is usually asymptomatic or with nonspecific symptoms. TC and RM scan are helpful to study GN. It is usually represented by an ovalshaped retroperitoneal mass or, in case of adrenal impairment, by low radiologic contrast media attenuation. Surgical treatment is mandatory. Literature shows how the laparoscopic approach is the most used, especially in lesions that are 6 cm or smaller. Our purpose is to describe our experience on an incidental adrenal GN of about 5 cm treated by the laparoscopic transperitoneal approach. Materials and methods: A 33-year-old male had ultrasound occasional finding of an about 4 cm adrenal mass. TC and RM scan identified a retroperitoneal mass (max diameter 48 mm). The lesion was removed with a transperitoneal laparoscopic approach. Results: No intraoperative or postoperative complications occurred. The patient was discharged 3 days after surgery. Conclusions: Up to the present laparoscopic surgery is the best approach for GN treatment

    skin flap squamous cell carcinoma developed after urethroplasty

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    Objectives: To describe our experience in diagnosis and treatment of urethral carcinoma following urethroplasty with a Orandi penile skin flap. Material and methods: Our patient underwent to Orandi penile skin flap urethroplasty then developed a urethral epidermoid carcinoma on the flap approximately 15 years later. We treated this case with a partial penectomy surgery and perineostomy. Surgery was followed by chemotherapy with cisplatin and 5-fluorouracil. The progression of the disease led to a salvage surgery of total penectomy and asportation of testicles and scrotum.Results: Despite the success of the surgery, the disease progressed and three months after the last surgical operation the patient died. Conclusions: Urethral carcinoma on skin flap is a rare complication of the urethroplasty surgery but with severe consequences, so we recommend to undertake a long-term urological follow up in patients undergone such kind of surgery

    Modulation of LISA free-fall orbits due to the Earth-Moon system

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    We calculate the effect of the Earth-Moon (EM) system on the free-fall motion of LISA test masses. We show that the periodic gravitational pulling of the EM system induces a resonance with fundamental frequency 1 yr^-1 and a series of periodic perturbations with frequencies equal to integer harmonics of the synodic month (9.92 10^-7 Hz). We then evaluate the effects of these perturbations (up to the 6th harmonics) on the relative motions between each test masses couple, finding that they range between 3mm and 10pm for the 2nd and 6th harmonic, respectively. If we take the LISA sensitivity curve, as extrapolated down to 10^-6 Hz, we obtain that a few harmonics of the EM system can be detected in the Doppler data collected by the LISA space mission. This suggests that the EM system gravitational near field could provide an absolute calibration for the LISA sensitivity at very low frequencies.Comment: 15 pages, 5 figure

    The Long-Baseline Neutrino Experiment: Exploring Fundamental Symmetries of the Universe

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    The preponderance of matter over antimatter in the early Universe, the dynamics of the supernova bursts that produced the heavy elements necessary for life and whether protons eventually decay --- these mysteries at the forefront of particle physics and astrophysics are key to understanding the early evolution of our Universe, its current state and its eventual fate. The Long-Baseline Neutrino Experiment (LBNE) represents an extensively developed plan for a world-class experiment dedicated to addressing these questions. LBNE is conceived around three central components: (1) a new, high-intensity neutrino source generated from a megawatt-class proton accelerator at Fermi National Accelerator Laboratory, (2) a near neutrino detector just downstream of the source, and (3) a massive liquid argon time-projection chamber deployed as a far detector deep underground at the Sanford Underground Research Facility. This facility, located at the site of the former Homestake Mine in Lead, South Dakota, is approximately 1,300 km from the neutrino source at Fermilab -- a distance (baseline) that delivers optimal sensitivity to neutrino charge-parity symmetry violation and mass ordering effects. This ambitious yet cost-effective design incorporates scalability and flexibility and can accommodate a variety of upgrades and contributions. With its exceptional combination of experimental configuration, technical capabilities, and potential for transformative discoveries, LBNE promises to be a vital facility for the field of particle physics worldwide, providing physicists from around the globe with opportunities to collaborate in a twenty to thirty year program of exciting science. In this document we provide a comprehensive overview of LBNE's scientific objectives, its place in the landscape of neutrino physics worldwide, the technologies it will incorporate and the capabilities it will possess.Comment: Major update of previous version. This is the reference document for LBNE science program and current status. Chapters 1, 3, and 9 provide a comprehensive overview of LBNE's scientific objectives, its place in the landscape of neutrino physics worldwide, the technologies it will incorporate and the capabilities it will possess. 288 pages, 116 figure

    CEERS Epoch 1 NIRCam Imaging: Reduction Methods and Simulations Enabling Early JWST Science Results

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    We present the data release and data reduction process for the Epoch 1 NIRCam observations for the Cosmic Evolution Early Release Science Survey (CEERS). These data consist of NIRCam imaging in six broadband filters (F115W, F150W, F200W, F277W, F356W and F444W) and one medium band filter (F410M) over four pointings, obtained in parallel with primary CEERS MIRI observations (Yang et al. in prep). We reduced the NIRCam imaging with the JWST Calibration Pipeline, with custom modifications and reduction steps designed to address additional features and challenges with the data. Here we provide a detailed description of each step in our reduction and a discussion of future expected improvements. Our reduction process includes corrections for known pre-launch issues such as 1/f noise, as well as in-flight issues including snowballs, wisps, and astrometric alignment. Many of our custom reduction processes were first developed with pre-launch simulated NIRCam imaging over the full 10 CEERS NIRCam pointings. We present a description of the creation and reduction of this simulated dataset in the Appendix. We provide mosaics of the real images in a public release, as well as our reduction scripts with detailed explanations to allow users to reproduce our final data products. These represent one of the first official public datasets released from the Directors Discretionary Early Release Science (DD-ERS) program.Comment: 27 pages, 14 figures, submitted to ApJ. Accompanying CEERS public Data Release 0.5 available at ceers.github.io/releases.htm

    CEERS Epoch 1 NIRCam Imaging:Reduction Methods and Simulations Enabling Early JWST Science Results

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    We present the data release and data reduction process for the Epoch 1 NIRCam observations for the Cosmic Evolution Early Release Science Survey (CEERS). These data consist of NIRCam imaging in six broadband filters (F115W, F150W, F200W, F277W, F356W and F444W) and one medium-band filter (F410M) over four pointings, obtained in parallel with primary CEERS MIRI observations. We reduced the NIRCam imaging with the JWST Calibration Pipeline, with custom modifications and reduction steps designed to address additional features and challenges with the data. Here we provide a detailed description of each step in our reduction and a discussion of future expected improvements. Our reduction process includes corrections for known prelaunch issues such as 1/f noise, as well as in-flight issues including snowballs, wisps, and astrometric alignment. Many of our custom reduction processes were first developed with prelaunch simulated NIRCam imaging over the full 10 CEERS NIRCam pointings. We present a description of the creation and reduction of this simulated data set in the Appendix. We provide mosaics of the real images in a public release, as well as our reduction scripts with detailed explanations to allow users to reproduce our final data products. These represent one of the first official public data sets released from the Directors Discretionary Early Release Science (DD-ERS) program.</p

    Disease-specific and general health-related quality of life in newly diagnosed prostate cancer patients: The Pros-IT CNR study

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