ABSTRACT We present a precise characterization of the TOI-561 planetary system obtained by combining previously published data with TESS and CHEOPS photometry, new set 62 HARPS-N radial velocities (RVs). Our joint analysis confirms presence four transiting planets, namely b (P = 0.45 d, R 1.42 R?, M 2.0 M?), c 10.78 2.91 5.4 d 25.7 2.82 13.2 e 77 2.55 12.6 R?). Moreover, we identify an addition...

Here we report large-amplitude transit timing variations (TTVs) for AU Microcopii b and c as detected in combined TESS (2018, 2020) CHEOPS (2020, 2021) observations. Mic is a young planetary system with debris disk two transiting warm Neptunes. A TTV on the order of several minutes was previously reported b, which suggested to be an outcome mutual perturbations between planets system. In 2021, ...

AIM To assess the effect of peritonsillar infiltration of ketamine and tramadol on post tonsillectomy pain and compare the side effects. METHODS The double-blind randomized clinical trial was performed on 126 patients aged 5-12 years who had been scheduled for elective tonsillectomy. The patients were randomly divided into 3 groups to receive either ketamine, tramadol, or placebo. They had Am...

BACKGROUND Pain control in children is still a therapeutic dilemma. Preschool patients are affected from undesirable effects of postoperative pain more than adults. Tonsillectomy is associated with a high incidence of postoperative pain, not only complicating the recovery, but also delaying patients discharge. OBJECTIVES Despite employing different surgical and anesthetic strategies in post-t...

BACKGROUND The rapid emergence and recovery from general anesthesia afforded by sevoflurane is associated with a high incidence of emergence agitation in children. Small doses of ketamine reduce the incidence of emergence agitation. This study compared the effects of ketamine 0.25 mg/kg and 0.5 mg/kg on emergence agitation and postoperative pain. METHODS The effects of added intravenous ketam...

The strange-anticharmed Pentaquark is a uudc̄s or uddc̄s five-quark baryon that is expected to be either a narrow resonance, or possibly even stable against strong and electromagnetic decay. We describe this hyperon here, its structure, binding energy and lifetime, resonance width, production mechanisms, production cross sections, and decay modes. We describe techniques to reduce backgrounds in s...

PURPOSE To evaluate the postoperative analgesic efficacy of penile block, caudal block and intravenous paracetamol administration following circumcision. MATERIALS AND METHODS In this prospective randomized study a total of 159 patients underwent circumcision under general anesthesia at urology clinic of Ufuk University Faculty of Medicine and Sorgun State Hospital between May 2012 and Septem...

BACKGROUND Our aim was to compare the effect of single dose caudal ketamine, alfentanil or a mixture of both drugs in the treatment of pain after hypospadias repair surgery in children. METHODS The group comprised 109 boys, ASA I-II, aged 1-9 years, who were undergoing hypospadias repair surgery as day cases. The children were randomly divided into three groups for postoperative analgesia: gr...

Aims. We compare the apparent difference in timing of transiting planets (or eclipsing binaries) that are observed from widely separated locations (parallactic delay). Methods. A simple geometrical argument allows us to show that the apparent timing difference also depends on the sky position angle of the planetary (or secondary) orbit, relative to the ecliptic plane. Results. Our calculation o...