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This paper focuses on key areas in which artificial intelligence has affected the chess world, including cheat detection methods, which are especially necessary recently, as there has been an unexpected rise in the popularity of online chess. Many major chess events that were to take place in 2020 have been canceled, but the global popularity of chess has in fact grown in recent months due to easier conversion of the game from offline to online formats compared with other games. Still, though a game of chess can be easily played online, there are some concerns about the increased chances of cheating. Artificial intelligence can address these concerns.

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In this paper, we present an analysis of the symmetry of the point and of the line in relation to the most known curved surfaces: cylindrical, conical and spherical. This analysis offers mathematical formulas showing the result of the transformations through symmetry and displays these changes through images obtained by spatial symmetrization, realized with Inventor software. These results can be used in graphical applications assisted by computers, which use the symmetry in relation to curved surfaces.

Aims: The aim of this retrospective study was to try to find correlations between different diagnoses established by clinical examination, anorectal manometry and MRI-defecography and, the association with psychiatric disorders., Methods: 44 patients (median age 53.81 years) presenting with intestinal motility disorders and who underwent clinical, biological and psychiatric examination, dynamic defecographic-MRI (resting, squeezing, straining, defecation and evacuation phases), anorectal manometry, colonoscopy. MRI was performed using the 1,5 T., Results: MRI-defecography revealed the following changes: anismus (16), rectocele (12), pelvic floor dysfunction (6), peritoneocele (2), cervical-cystic-ptosis (1), rectal prolapse (6), and in 1 case the examination was normal. Hypertonic anal sphincter (16) and lack of defecation reflex (12) at anorectal manometry correlated with anismus in all patients at MRI-defecography. Lack of inhibitor anal reflex (6) was associated with rectocele (4), cervix-cysto-ptosis (1) and peritoneocele (2). Anxiety (11), depression (6) and anxiety-depressive disorders (10) were found in 27/44, somatization disorders in 9/44 and no psychiatric changes in 8/44 cases., Conclusion: As multiparous women are at risk for outlet obstruction constipation, MRI-defecography is suggested in this category. There is good correlation between diagnosis using anorectal manometry and MRI-defecography in patients with terminal constipation and anismus. Lower defecation dysfunction is often associated with psychiatric disorders., Competing Interests: The authors report no conflicts of interest in this work.

Background: In rheumatoid arthritis (RA), females usually have a worse prognosis. To date, the influence of physician gender in the evaluation of RA activity is still largely unknown., Objectives: To investigate the discrepancy in RA disease activity assessment between male and female physicians and to compare patient and evaluator perception of disease activity and global health (GH) status., Methods: One female and one male rheumatologist evaluated 154 RA patients recording tender and swollen joint count, GH, evaluator global assessment (EGA), and patient global assessment (PGA) disease activity. A third rheumatologist calculated DAS28, CDAI, and SDAI. Difference was evaluated by Wilcoxon test. Physician-patient agreement was assessed by intraclass correlation coefficient., Results: GH, PGA, and DAS28 were higher when recorded by the female examiner. Male EGA was higher than female. Among male patients, PGA was higher when collected by the female examiner. The probability of being judged as having an active disease did not rely on physician gender. The agreement with the physician's evaluation of disease activity was high. PGA values were higher than EGA in both examiners. The physician-patient agreement was moderate for the male examiner and good for the female. The female physician had a higher agreement with both genders., Conclusions: Subjective measure of disease activity differs between female and male rheumatologists, contributing to a different evaluation of disease activity. Patients have a higher perception of disease activity compared to physicians. The stronger agreement between female physicians and patients may be related to a more emphatic setting established by the female physician.

Objectives: Baricitinib is a Janus-kinase (JAK) 1/2 inhibitor, approved for the treatment of moderate-to-severe rheumatoid arthritis (RA) patients with inadequate response to conventional synthetic disease-modifying anti-rheumatic drugs (csDMARDs). We report the first real-life experience with baricitinib in a monocentric cohort of unselected RA patients., Methods: We enrolled consecutive RA patients starting baricitinib. At baseline and after 4, 12, 24 and 48 weeks we assessed the disease activity by composite indices (SDAI, CDAI and DAS28CRP) and ultrasonography, and we recorded any adverse events. The primary endpoint was the percentage of patients achieving SDAI remission at week 4., Results: We enrolled 59 patients [(F:M = 50:9, median age 58.1 years (IQR 12.8), median disease duration 144 (IQR 150) months] treated with baricitinib in combination with a csDMARD (52.5%) or monotherapy (47.5%) for a median follow-up of 24 weeks (IQR 36). The 12-month drug retention rate was 74%. At weeks 4, 12, 24 and 48 we observed a significant reduction of DAS28, CDAI and SDAI, global health and pain (p<0.001 for all). After 4 weeks of treatment, 12% of patients achieved SDAI remission. Concomitant csDMARDs, previous biological DMARDs, gender, seropositivity and BMI did not affect the efficacy of baricitinib. Baricitinib allowed a significant reduction in prednisone dose after 12 and 24 weeks and a rapid and sustained ultrasound improvement. No serious adverse events, serious infections or cardiovascular events were recorded., Conclusions: Our study confirms the efficacy and safety profile and rapid onset of the effect of baricitinib in RA patients in a real-life setting.

Background: Adolescence has been recognized as a critical period for mental health during which it is fundamental to the well-being of adolescents to provide early and appropriate mental health interventions. Self-image perceptions play a particularly relevant role during adolescence since individuals are extensively involved in reorganizing their identity and relationships. Although the self-image development implies adaptive outcomes for most adolescents, some age-related tasks can be difficult to deal with and lead to psychological suffering for a minority of them., Method: This study examined how domain-specific self-image was associated with psychological distress in 128 treatment-seeking adolescents aged 13-18 (60.9% female). The adolescents completed the Offer Self-Image Questionnaire to measure their global and domain-specific self-image and the Youth-Outcome Questionnaire to assess their psychological distress., Results: Regression analyses indicated that impulse control, emotional tone, family, and social functioning significantly predict worse psychological functioning in the entire group. Moreover, significant gender differences emerged showing a more complex set of risk factors among adolescent females, thus suggesting the need for gender-targeted preventive and treatment strategies., Conclusions: The findings highlight that adolescents' feelings and concerns about their self-image may be key factors to consider in planning, developing, and delivering effective public mental health services for adolescents., (© 2017 Association for Child and Adolescent Mental Health.)

Objectives: This retrospective study used various indices to evaluate remission and low disease activity in 'real life' patients with rheumatoid arthritis (RA), given antitumour necrosis factor (anti-TNF) as a first-line treatment; changes in concomitant steroid and conventional synthetic disease-modifying antirheumatic drug (csDMARD) treatment were also assessed., Methods: Remission and low disease activity were analysed in patients with RA treated with anti-TNF using the 28-joint Disease Activity Score (DAS28), Simplified Disease Activity Index (SDAI) and Clinical Disease Activity Index (CDAI). Remission and low disease activity were recorded after 6 months, 1 year and 2 years, along with concomitant prednisone and csDMARD treatment., Results: A total of 271 patients with RA were included in the study. After 6 months, remission rates were 18.0%, 20.3% and 23.0% as assessed by CDAI, SDAI and DAS28, respectively. After 1 year and 2 years, respectively, remission rates were 18.4% and 15.9% using CDAI, 21.8% and 17.3% using SDAI, and 22.1% and 17.3% using DAS28. Low disease activity was achieved in 30-40% of patients, depending on the indices used. There was a significant reduction in the number of patients on prednisone and csDMARDs during anti-TNF treatment., Conclusion: Remission with first-line anti-TNF treatment is an achievable goal in clinical practice, allowing a reduction in concomitant csDMARD and prednisone treatment., (© The Author(s) 2016.)

Polycystic liver disease (PLD) is a hereditary disease inherited by autosomal dominant trait that occurs as a frequent extrarenal manifestation of autosomal dominant polycystic kidney disease (ADPKD). We report a case of a 59-year-old woman diagnosed with ADPKD associated with PLD. End-stage chronic renal failure with a secondary Budd-Chiari syndrome developed during the patient's clinical course. She underwent combined liver and kidney transplantation, with a successful response over a 9-year follow-up period.

Inflammatory pseudotumor (IPT) of the liver is a rare benign tumor of unknown origin, it has the appearance of a malignant tumor but has a benign histology and clinical course. We report a case of a 63-year-old man diagnosed of IPT of the liver and followed for 10 years. During the clinical course, he developed a secondary Budd-Chiari syndrome, with a successful response to a transjugular intrahepatic portosystemic shunt over a 5-year follow-up period.

Primary sclerosing cholangitis is an infrequent extraintestinal manifestation of ulcerative colitis. Damage to bile ducts is irreversible and medical therapies to prevent progression of the disease are usually ineffective. We describe a patient with long-standing ulcerative colitis, which was refractory to corticosteroid therapy who developed primary sclerosing cholangitis (biochemical stage II/IV) in the course of his pancolitis. Treatment with infliximab (5 mg/kg as an induction dose followed by maintenance doses every two months) was indicated because of steroid-dependent disease associated to primary sclerosing cholangitis as well as sacroiliitis and uveitis and previous episode of severe azathioprine-related hepatic toxicity. At present, after two years of follow-up, the patient is asymptomatic with normal liver tests and complete resumption of daily life activities. This case draws attention to the usefulness of anti-tumor necrosis factor-alpha therapy for the management of primary sclerosing cholangitis as extraintestinal manifestation of inflammatory bowel disease.