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https://www.readbyqxmd.com/read/27933248/convergence-and-norm-estimates-of-hermite-interpolation-at-zeros-of-chevyshev-polynomials
#1
Kamel Al-Khaled, Marwan Alquran
In this paper, we investigate the simultaneous approximation of a function f(x) and its derivative [Formula: see text] by Hermite interpolation operator [Formula: see text] based on Chevyshev polynomials. We also establish general theorem on extreme points for Hermite interpolation operator. Some results are considered to be an improvement over those obtained in Al-Khaled and Khalil (Numer Funct Anal Optim 21(5-6): 579-588, 2000), while others agrees with Pottinger's results (Pottinger in Z Agnew Math Mech 56: T310-T311, 1976)...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27932502/ca2-calmodulin-mlck-pathway-initiates-and-rhoa-rock-maintains-the-internal-anal-sphincter-smooth-muscle-tone
#2
Satish Rattan
N/A.
December 8, 2016: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/27931519/high-prevalence-of-hiv-chlamydia-and-gonorrhoea-among-men-who-have-sex-with-men-and-transgender-women-attending-trusted-community-centres-in-abuja-and-lagos-nigeria
#3
Babajide Keshinro, Trevor A Crowell, Rebecca G Nowak, Sylvia Adebajo, Sheila Peel, Charlotte A Gaydos, Cristina Rodriguez-Hart, Stefan D Baral, Melissa J Walsh, Ogbonnaya S Njoku, Sunday Odeyemi, Teclaire Ngo-Ndomb, William A Blattner, Merlin L Robb, Manhattan E Charurat, Julie Ake
INTRODUCTION: Sexually transmitted infection (STI) and HIV prevalence have been reported to be higher amongst men who have sex with men (MSM) in Nigeria than in the general population. The objective of this study was to characterize the prevalence of HIV, chlamydia and gonorrhoea in this population using laboratory-based universal testing. METHODS: TRUST/RV368 represents a cohort of MSM and transgender women (TGW) recruited at trusted community centres in Abuja and Lagos, Nigeria, using respondent-driven sampling (RDS)...
2016: Journal of the International AIDS Society
https://www.readbyqxmd.com/read/27929243/epididymitis-an-overview
#4
John R McConaghy, Bethany Panchal
Inflammation of the epididymis, or epididymitis, is commonly seen in the outpatient setting. Etiology and treatment are based on patient age and the likely causative organisms. Epididymitis presents as the gradual onset of posterior scrotal pain that may be accompanied by urinary symptoms such as dysuria and urinary frequency. Physical findings include a swollen and tender epididymis with the testis in an anatomically normal position. Although the etiology is largely unknown, reflux of urine into the ejaculatory ducts is considered the most common cause of epididymitis in children younger than 14 years...
November 1, 2016: American Family Physician
https://www.readbyqxmd.com/read/27927720/restorative-proctocolectomy-in-elderly-ibd-patients-a-multicentre-comparative-study-on-safety-and-efficacy
#5
Francesco Colombo, Saloomeh Sahami, Antony de Buck Van Overstraeten, Hagit Tulchinsky, Diane Mege, Iris Dotan, Diego Foschi, Cosimo Alex Leo, Janindra Warusavitarne, André D'Hoore, Yves Panis, Willem Bemelman, Gianluca M Sampietro
BACKGROUND AND AIMS: Restorative proctocolectomy in elderly inflammatory bowel disease [ IBD] patients is controversial and limited data are available on the outcomes of surgery. The aim of this study was to evaluate the safety, efficacy, and long-term results of ileal-pouch-anal anastomosis in elderly patients, in a multicentre survey from European referral centres. METHODS: The International Pouch Database [IPD] combined 101 variables. Patients aged ≥ 65 years were matched on the basis of open versus laparoscopic surgery with a control group of consecutive younger unselected patients with a ratio of 1:2...
December 7, 2016: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/27926567/indications-and-technical-aspects-of-internal-anal-sphincterotomy-highlighting-the-controversies
#6
Sameh Hany Emile
No abstract text is available yet for this article.
January 2017: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/27926562/long-term-experience-of-magnetic-anal-sphincter-augmentation-in-patients-with-fecal-incontinence
#7
Jeremy Sugrue, Paul-Antoine Lehur, Robert D Madoff, Shane McNevin, Steen Buntzen, Søren Laurberg, Anders Mellgren
BACKGROUND: Magnetic anal sphincter augmentation is a novel technique for the treatment of patients with fecal incontinence. OBJECTIVE: The current study reports the long-term effectiveness and safety of this new treatment modality. DESIGN: This was a prospective multicenter pilot study. SETTINGS: The study was performed at 4 clinical sites in Europe and the United States. PATIENTS: The cohort included patients with severe fecal incontinence for ≥6 months who had previously failed conservative therapy and were implanted with a magnetic anal sphincter device between 2008 and 2011...
January 2017: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/27926561/percutaneous-posterior-tibial-nerve-stimulation-vs-perianal-application-of-glyceryl-trinitrate-ointment-in-the-treatment-of-chronic-anal-fissure-a-randomized-clinical-trial
#8
Jaime Ruiz-Tovar, Carolina Llavero
BACKGROUND: Current therapeutic guidelines for the treatment of chronic anal fissure establish a medical approach as the first step. Glyceryl trinitrate ointment is the most popular of the available topical treatments in Spain but it is associated with the appearance of headache. OBJECTIVE: The purpose of this study was to compare the compliance rate among patients receiving glyceryl trinitrate treatment for chronic anal fissure with that among patients receiving percutaneous posterior tibial nerve stimulation...
January 2017: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/27926556/natural-orifice-specimen-extraction-with-single-stapling-colorectal-anastomosis-for-laparoscopic-anterior-resection-feasibility-outcomes-and-technical-considerations
#9
Bansal Saurabh, Sheng-Chi Chang, Tao-Wei Ke, Yu-Chun Huang, Takashi Kato, Hwei-Ming Wang, William Tzu-Liang Chen, Abe Fingerhut
BACKGROUND: Double and triple stapling techniques to close the rectal stump in laparoscopic anterior resection are fraught with technical drawbacks that could possibly be avoided with the use of the single stapling technique. However, little is known of its safety in laparoscopic surgery or outcomes when combined with natural orifice specimen extraction. OBJECTIVE: This study aims to analyze the feasibility and the operative and immediate postoperative outcomes of single-stapled anastomosis and natural orifice specimen extraction with conventional techniques...
January 2017: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/27926552/clinical-practice-guideline-for-the-management-of-anal-fissures
#10
David B Stewart, Wolfgang Gaertner, Sean Glasgow, John Migaly, Daniel Feingold, Scott R Steele
No abstract text is available yet for this article.
January 2017: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/27925484/risk-factors-associated-with-repeated-hiv-testing-among-internet-using-men-who-have-sex-with-men
#11
Brent A Johnson, Jennie McKenney, Alexandra V Ricca, Eli S Rosenberg, Chang Liu, Akshay Sharma, Patrick S Sullivan
: Men who have sex with men (MSM) represent a disproportionately impacted risk group for HIV incidence among at-risk U.S. POPULATIONS: Few studies have identified risk factors associated with HIV testing frequency both within and outside of traditional health care settings. MSM enrolled in a prospective cohort were mailed at-home specimen collection kits and followed for a year. Incidence density rate ratios (IDRR) of testing were calculated, and generalized estimating equations were used to analyze the association between HIV testing and behavioral factors...
December 2016: AIDS Education and Prevention: Official Publication of the International Society for AIDS Education
https://www.readbyqxmd.com/read/27924392/colonic-stenting-as-a-bridge-to-surgery-versus-emergency-surgery-for-malignant-colonic-obstruction-results-of-a-multicentre-randomised-controlled-trial-esco-trial
#12
Alberto Arezzo, Carmen Balague, Eduardo Targarona, Felice Borghi, Giorgio Giraudo, Luigi Ghezzo, Antonio Arroyo, Javier Sola-Vera, Paolo De Paolis, Maurizio Bossotti, Elisa Bannone, Edoardo Forcignanò, Marco Augusto Bonino, Roberto Passera, Mario Morino
BACKGROUND: The aim of colonic stenting with self-expandable metallic stents in neoplastic colon obstruction is to avoid emergency surgery and thus potentially reduce morbidity, mortality, and need for a stoma. Concern has been raised, however, about the effect of colonic stenting on short-term complications and long-term survival. We compared morbidity rates after colonic stenting as a bridge to surgery (SBTS) versus emergency surgery (ES) in the management of left-sided malignant large-bowel obstruction...
December 6, 2016: Surgical Endoscopy
https://www.readbyqxmd.com/read/27923228/feasibility-and-acceptability-of-anal-self-sampling-for-human-papillomavirus-screening-in-hiv-infected-patients
#13
Catherine Tamalet, Isabelle Ravaux, Catherine Dhiver, Amelie Menard, Philippe Colson, Andreas Stein
OBJECTIVES: Anal cancer incidence is increasing among HIV-positive patients. No consensus currently exists for the screening of anal dysplasia. This study aimed at evaluating the feasibility and acceptability of anal self-sampling and assessing the prevalence of human papillomavirus (HPV) types among HIV-positive patients from Marseille University Hospitals. METHODS: Between October 2013 and March 2014, during their regular visits for the monitoring of their HIV infection in an HIV outpatient clinical unit of Marseille University Hospitals, patients were asked to self-sample anal swabs for HPV detection...
December 7, 2016: Intervirology
https://www.readbyqxmd.com/read/27923035/biomarkers-in-anal-cancer-from-biological-understanding-to-stratified-treatment
#14
Christopher M Jones, Vicky Goh, David Sebag-Montefiore, Duncan C Gilbert
Squamous cell carcinomas of the anus and anal canal represent a model of a cancer and perhaps the first where level 1 evidence supported primary chemoradiotherapy (CRT) in treating locoregional disease with curative intent. The majority of tumours are associated with infection with oncogenic subtypes of human papilloma virus and this plays a significant role in their sensitivity to treatment. However, not all tumours are cured with CRT and there remain opportunities to improve outcomes in terms of oncological control and also reducing late toxicities...
December 6, 2016: British Journal of Cancer
https://www.readbyqxmd.com/read/27922858/hiv-hpv-and-microbiota-partners-in-crime
#15
Sergio Serrano-Villar, Emilia Vásquez-Domínguez, José Antonio Pérez-Molina, Talía Sainz, Amparo de Benito, Amparo Latorre, Andrés Moya, María José Gosalbes, Santiago Moreno
Altered interplay between gut mucosa and dysbiotic bacteria during HIV infection seems to fuel chronic immune dysfunction and might explain the excess rates of HPV-associated anal cancer in HIV-infected individuals. Here, we show in HIV-infected MSM undergoing screening for HPV-related cancer that specific fecal and mucosal bacteria are able to predict the existence of precancerous anal lesions. If confirmed, these bacterial biomarkers could be exploited either as diagnostic tools or therapeutic targets.
December 5, 2016: AIDS
https://www.readbyqxmd.com/read/27922853/heart-sink-topics-in-sexually-transmitted-infections-vaccinations-anal-cancer-screening-and-overlapping-infection-epidemics-in-eastern-europe
#16
Karen E Rogstad
No abstract text is available yet for this article.
December 2, 2016: Current Opinion in Infectious Diseases
https://www.readbyqxmd.com/read/27921269/graded-structure-in-sexual-definitions-categorizations-of-having-had-sex-and-virginity-loss-among-homosexual-and-heterosexual-men-and-women
#17
Ava D Horowitz, Edward Bedford
Definitions of sexual behavior display a robust hierarchy of agreement regarding whether or not acts should be classed as, for example, sex or virginity loss. The current research offers a theoretical explanation for this hierarchy, proposing that sexual definitions display graded categorical structure, arising from goodness of membership judgments. Moderation of this graded structure is also predicted, with the focus here on how sexual orientation identity affects sexual definitions. A total of 300 18- to 30-year-old participants completed an online survey, rating 18 behaviors for how far each constitutes having "had sex" and virginity loss...
December 5, 2016: Archives of Sexual Behavior
https://www.readbyqxmd.com/read/27919575/a-prospective-algorithm-to-reduce-anastomotic-leaks-after-rectosigmoid-resection-for-gynecologic-malignancies
#18
E Kalogera, C C Nitschmann, S C Dowdy, W A Cliby, C L Langstraat
OBJECTIVE: Determine whether a standardized protocol for temporary bowel diversion after rectosigmoid resection (RSR) for cytoreduction can reduce the rate of anastomotic leak (AL). METHODS: A prospective quality improvement project for patients undergoing RSR during debulking surgery from 07/2013 to 01/2016 was conducted. Patients with any of the following underwent temporary diversion: preoperative albumin ≤3.0g/dL, prior pelvic radiation, RSR plus additional large bowel resection (LBR), anastomosis (AS) ≤6cm from the anal verge, failed leak test or contamination of the pelvis with stool...
December 2, 2016: Gynecologic Oncology
https://www.readbyqxmd.com/read/27918340/obstetrical-anal-sphincter-injuries-does-obstetrical-care-provider-matter-a-quality-assurance-study-in-ontario
#19
Katerina Pizzuto, Jessica Pudwell, Graeme N Smith, Marie-Andrée Harvey
OBJECTIVES: We sought to determine the rates of obstetrical anal sphincter tears (OASIS) between types of obstetrical care providers at Kingston General Hospital (KGH) and in Ontario via the Better Outcomes Registry Network (BORN). METHODS: This cross-sectional study collected patient, demographic, and delivery data from all vaginal deliveries at KGH from June 2011 to June 2014 and all vaginal deliveries through the BORN database from June 2012 to June 2014. RESULTS: During this period, 4...
December 1, 2016: Female Pelvic Medicine & Reconstructive Surgery
https://www.readbyqxmd.com/read/27917348/resolution-of-constipation-anal-stricture-and-iron-deficiency-anemia-after-iron-infusion-an-analogy-with-plummer-vinson-syndrome
#20
Vijaypal Arya, Shikha Singh, Shashank Agarwal, Arjun Ohri
BACKGROUND: Anal stricture is a disabling condition which is often unresponsive to conservative medical management. The complications of surgical procedures such as dilatations and anoplasty make it a formidable treatment challenge. Through this case, we report and explore a new medical treatment for ano-rectal strictures with an analogy to Plummer Vinson syndrome. A 69-year-old male presented with chronic constipation, rectal pain, and easy fatigability. The physical exam was negative for anal fissure and a digital rectal examination could not be completed because an index finger could not be advanced through the narrowed anus...
2016: SpringerPlus
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