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Observation of the decay B+→ψ(2S)ϕ(1020)K+ in pp collisions at s=8TeV
No full textAbstractThe decay B+→ψ(2S)ϕ(1020)K+ is observed for the first time using data collected from pp collisions at s=8TeV by the CMS experiment at the LHC, corresponding to an integrated luminosity of 19.6fb−1. The branching fraction of this decay is measured, using the mode B+→ψ(2S)K+ as normalization, to be (4.0±0.4(stat)±0.6(syst)±0.2(B))×10−6, where the third uncertainty is from the measured branching fraction of the normalization channel
Ionic liquid promoted facile and green synthesis of 1,8-dioxo-octahydroxanthene derivatives under microwave irradiation
No full textAbstractAn efficient and environmentally benign procedure for the synthesis of 1,8-dioxo-octahydroxanthene by condensation reaction between 5,5-dimethyl-1,3-cyclohexanedione (dimedone) and structurally diverse aldehydes using carboxy functionalized ionic liquid under microwave irradiation is described. The methodology provides synergy of ionic liquid and microwave irradiation which offers several advantages such as high yields in shorter reaction time, convenient operation, reusability of catalyst and easy work-up
Persistent cough as a paraneoplastic presenting symptom in six patients with renal cell carcinoma
No full textAbstractObjectiveWith today's modern imaging modalities, patients diagnosed with renal cell carcinoma (RCC) rarely present symptomatically. In some cases, however, they can develop paraneoplastic syndromes with associated symptoms. To date, only three cases of RCC presenting with chronic dry cough have been reported. We describe six patients who presented with cough that improved following radical nephrectomy.MethodsA retrospective review of patients undergoing partial or radical nephrectomy for renal masses between January 2015 and March 2016 was performed, and patients presenting with a cough were examined.ResultsSix patients presented with chronic cough and were discovered to have a large renal mass. Postoperative spontaneous resolution of cough was noted in all but one patient, in whom coughing was reduced and limited to the mornings. Cough duration ranged from 3 months to just over a year. All patients were treated with radical nephrectomy, which was cytoreductive in four patients. Average tumor size was 10.9 cm (SD = 2.2 cm). Five of the tumors had clear cell pathology, and every tumor was Fuhrman grade IV, unifocal, and demonstrated necrosis. Sarcomatoid features were reported in four of the tumors.ConclusionOur study presents the largest series of patients with RCC who presented with a chronic cough that was significantly improved following radical nephrectomy. We believe the cause of cough is multifactorial and further investigation is needed to clearly elucidate the etiology
Efficient transport of lead(II) cations in natural water using a liquid membrane system with dicyclohexano-18-crown-6 as carrier
No full textAbstractSelective transport of lead(II) cation across a bulk liquid membrane(BLM) containing dicyclohexano-18-crown-6 (DC18C6) as carriers has been studied. Various factors that affect the transport efficiency of this heavy metal cation have been optimized in order to obtain maximum transport. It has been observed that in the presence of EDTA as stripping agent and triton X-100 as sufficient surfactant in the receiving phase and at the optimum pH of 5, lead can transport with recovery 101±2%. The carrier can selectively and efficiently transport Pb(II) cation from aqueous solutions containing other interfering cations. A possible application of this carrier system and transport process to the preconcentration and recovery of Pb(II) cation from real samples has also been examined
Executed-time Round Robin: EtRR an online non-clairvoyant scheduling on speed bounded processor with energy management
No full textAbstractEnergy conservation has become a prime objective due to excess use and huge demand of energy in data centers. One solution is to use efficient job scheduling algorithms. The scheduler has to maintain the machine’s state balance to obtain efficient job schedule and avoid unnecessary energy consumption. Although the practical importance of non-clairvoyant scheduling problem is higher than clairvoyant scheduling, in the past few years the non-clairvoyant scheduling problem has been studied lesser than clairvoyant scheduling. In this paper, an online non-clairvoyant scheduling problem is studied to minimize total weighted flow time plus energy and a scheduling algorithm Executed-time Round Robin (EtRR) is proposed. Generally, weights of jobs are system generated and they are assigned to jobs at release/arrival time. In EtRR, the weights are not generated by the system, rather by the scheduler using the executed time of jobs. EtRR is a coupling of weighted generalization of Power Management and Weighted Round Robin (WRR). We adopt the conventional power function P=sα, where s and α>1 are speed of a processor and a constant, respectively. EtRR is O(1)-competitive, it is using a processor with the maximum speed (1+τ/3)T, where the maximum speed of optimal offline adversary is T and 0<τ⩽(3α)-1
Daily meal frequency and associated variables in children and adolescents
No full textAbstractObjectiveTo investigate the frequency distribution of daily meals and its relation to demographic, socioeconomic, behavioral, anthropometric and biochemical factors in children and adolescents.MethodsThis was a cross-sectional study with a representative sample of 708 schoolchildren aged 7–14 years. Data on personal information, socioeconomic status, physical activity and number of meals were obtained through semi-structured questionnaire and consumption by 24-h recall and food record. Weight and height measurements were also performed to calculate the body mass index. Finally, blood samples were collected for analysis of total cholesterol, high- and low density lipoprotein, triglyceride, and glucose levels. Descriptive statistics, the Mann–Whitney test, and Poisson regression were used in statistical analysis.ResultsMeal frequency <4 was associated in children, family income <3 Brazilian minimum wages (PR=5.42; 95% CI: 1.29–22.77; p=0.021) and adolescents, the number of sons in the family >2 (PR=1.53; 95% CI: 1.11–2.11; p=0.010). Even in the age group of 10–14 years, <4 meals was related to higher prevalence of body mass index (PR=1.33; 95% CI: 1.02–1.74; p=0.032) and low-density lipoprotein (PR=1.39; 95% CI: 1.03–1.87; p=0.030) higher after adjustments.ConclusionLower frequency of meals was related to lower income in children and adolescents, larger number of sons in the family, and increased values of body mass index and low-density lipoprotein
Correlation analysis of reactivity in the oxidation of some para- substituted benzhydrols by triethylammonium chlorochromate in non-aqueous media
No full textAbstractTriethylammonium chlorochromate (TriEACC) oxidation of some para-substituted benzhydrols (BH) in dimethylsulfoxide (DMSO) leads to the formation of corresponding benzophenones. The reaction was run under pseudo-first-order conditions. The reaction is catalyzed by hydrogen ions. The hydrogen ion dependence has the form: kobs=a+b[H+]. Various thermodynamic parameters for the oxidation have been reported and discussed along with the validity of isokinetic relationship. Oxidation of benzhydrol was studied in 18 different organic solvents. The rate data showing satisfactory correlation with Kamlet–Taft solvatochromic parameters (α, β and π∗) suggests that the specific solute–solvent interactions play a major role in governing the reactivity, and the observed solvent effects have been explained on the basis of solute–solvent complexation. A suitable mechanism of oxidation has been proposed
Total small bowel herniation through the space between the connecting tube of gastric band and abdominal wall A case report of a surgical emergency
No full textAbstractIntroductionLaparoscopic adjustable gastric banding is one of the most frequently done procedures for morbid obesity. In most reported cases, the band itself is the cause of complications. There are only a few reports of morbidities caused by the connecting tube. This presentation describes a case of acute abdomen due to small bowel herniation between the connecting tube and the abdominal wall. This case report aims to remind clinicians of possible complications caused by the connecting tube of a gastric band.Case presentationWe report about a 24-year-old male patient, who presented with acute abdomen. He had undergone gastric banding three years ago. According to his clinical presentation, the patient was diagnosed as having acute appendicitis.Abdominal exploration revealed, total small bowel herniation between the connecting tube and the abdominal wall.DiscussionAlthough a simple procedure, laparoscopic gastric banding could have serious complications. Some of these complications could present years after the application of the gastric band. There are a few reports about complications caused by the connecting tube of the gastric band.ConclusionComplications caused by connecting tube should always be in mind, when assessing acute abdomen in patients with laparoscopic gastric band
Benefit of general anesthesia monitored by bispectral index compared with monitoring guided only by clinical parameters. Systematic review and meta-analysis
No full textAbstractBackgroundThe bispectral index parameter is used to guide the titration of general anesthesia; however, many studies have shown conflicting results regarding the benefits of bispectral index monitoring. The objective of this systematic review with meta-analysis is to evaluate the clinical impact of monitoring with the bispectral index parameter.MethodsThe search for evidence in scientific information sources was conducted during December 2013 to January 2015, the following primary databases: Medline/PubMed, LILACS, Cochrane, CINAHL, Ovid, SCOPUS and TESES. The criteria for inclusion in the study were randomized controlled trials, comparing general anesthesia monitored, with bispectral index parameter with anesthesia guided solely by clinical parameters, and patients aged over 18 years. The criteria for exclusion were studies involving anesthesia or sedation for diagnostic procedures, and intraoperative wake-up test for surgery of the spine.ResultsThe use of monitoring with the bispectral index has shown benefits reducing time to extubation, orientation in time and place, and discharge from both the operating room and post anesthetic care unit. The risk of nausea and vomiting after surgery was reduced by 12% in patients monitored with bispectral index. Occurred a reduction of 3% in the risk of cognitive impairment postoperatively at 3 months postoperatively and 6% reduction in the risk of postoperative delirium in patients monitored with bispectral index. Furthermore, the risk of intraoperative memory has been reduced by 1%.ConclusionClinically, anesthesia monitoring with the BIS can be justified because it allows advantages from reducing the recovery time after waking, mainly by reducing the administration of general anesthetics as well as the risk of adverse events
Cellular electron cryo tomography and in situ sub-volume averaging reveal the context of microtubule-based processes
No full textAbstractElectron cryo-tomography (cryoET) is currently the only technique that allows the direct observation of proteins in their native cellular environment. Sub-volume averaging of electron tomograms offers a route to increase the signal-to-noise of repetitive biological structures, such improving the information content and interpretability of tomograms. We discuss the potential for sub-volume averaging in highlighting and investigating specific processes in situ, focusing on microtubule structure and viral infection. We show that (i) in situ sub-volume averaging from single tomograms can guide and complement segmentation of biological features, (ii) the in situ determination of the structure of individual viruses is possible as they infect a cell, and (iii) novel, transient processes can be imaged with high levels of detail