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1Efficacy of peroral endoscopic myotomy vs other achalasia treatments in improving esophageal function显示文摘AIM: To assess and compare the esophageal function after peroral endoscopic myotomy(POEM) vs other conventional treatments in achalasia.METHODS: Chart review of all achalasia patients who underwent POEM, laparoscopic Heller myotomy(LHM) or pneumatic dilation(PD) at our institution between January 2012 and March 2015 was performed. Patient demographics, type of achalasia, prior treatments, pre- and post-treatment timed barium swallow(TBE) and high-resolution esophageal manometry(HREM) findings were compared between the three treatment groups. Patients who had both pre- and 2 mo posttreatment TBE or HREM were included in the final analysis. TBE parameters compared were barium column height, width and volume of barium remaining at 1 and 5 min. HREM parameters compared were basal lower esophageal sphincter(LES) pressures and LES-integrated relaxation pressures(IRP). Data are presented as mean ± SD, median [25th, 75 th percentiles] or frequency(percent). Analysis of variance, KruskalWallis test, Pearsons χ~2 test and Fishers Exact tests were used for analysis.RESULTS: A total of 200 achalasia patients were included of which 36 underwent POEM, 22 underwent PD and 142 underwent LHM. POEM patients were older(55.4 ± 16.8 years vs 46.5 ± 15.7 years, P = 0.013) and had higher BMI than LHM(29.1 ± 5.9 kg/m^2 vs 26 ± 5.1 kg/m^2, P = 0.012). More number of patients in POEM and PD groups had undergone prior treatments compared to LHM group(72.2% vs 68.2% vs 44.3% respectively, P = 0.003). At 2 mo post-treatment, all TBE parameters including barium column height, width and volume remaining at 1 and 5 min improved significantly in all three treatment groups(P = 0.01 to P < 0.001) except the column height at 1 min in PD group(P = 0.11). At 2 mo post-treatment, there was significant improvement in basal LES pressure and LES-IRP in both LHM(40.5 mm Hg vs 14.5 mm Hg and 24 mm Hg vs 7.1 mm Hg respectively, P < 0.001) and POEM groups(38.7 mm Hg vs 11.4 mm Hg and 23.6 mm Hg vs 6.6 mm Hg respectively, P < 0.001). However, when the efficacy of three treatments were compared to each other in terms of improvement in TBE or HREM parameters at 2 mo, there was no significant difference(P > 0.05).CONCLUSION: POEM, PD and LHM were all effective in improving esophageal function in achalasia at shortterm. There was no difference in efficacy between the three treatments.Madhusudhan R Sanaka Umar Hayat Prashanthi N Thota Ramprasad Jegadeesan Monica Ray Scott L Gabbard Neha Wadhwa Rocio Lopez Mark E Baker Sudish Murthy Siva Raja 2016World Journal of Gastroenterology2016,22,20:7
2Air quality monitoring using mobile microscopy and machine learning显示文摘Rapid,accurate and high-throughput sizing and quantification of particulate matter(PM)in air is crucial for monitoring and improving air quality.In fact,particles in air with a diameter of≤2.5μm have been classified as carcinogenic by the World Health Organization.Here we present a field-portable cost-effective platform for high-throughput quantification of particulate matter using computational lens-free microscopy and machine-learning.This platform,termed c-Air,is also integrated with a smartphone application for device control and display of results.This mobile device rapidly screens 6.5 L of air in 30 s and generates microscopic images of the aerosols in air.It provides statistics of the particle size and density distribution with a sizing accuracy of~93%.We tested this mobile platform by measuring the air quality at different indoor and outdoor environments and measurement times,and compared our results to those of an Environmental Protection Agency–approved device based on beta-attenuation monitoring,which showed strong correlation to c-Air measurements.Furthermore,we used c-Air to map the air quality around Los Angeles International Airport(LAX)over 24 h to confirm that the impact of LAX on increased PM concentration was present even at 47 km away from the airport,especially along the direction of landing flights.With its machinelearning-based computational microscopy interface,c-Air can be adaptively tailored to detect specific particles in air,for example,various types of pollen and mold and provide a cost-effective mobile solution for highly accurate and distributed sensing of air quality.Yi-Chen Wu Ashutosh Shiledar Yi-Cheng Li Jeffrey Wong Steve Feng Xuan Chen Christine Chen Kevin Jin Saba Janamian Zhe Yang Zachary Scott Ballard Zoltán Göröcs Alborz Feizi Aydogan Ozcan 2017Light(Science & Applications)2017,6,1:5
3Operating experience with modulation of the pacific HVDC inter-tie显示文摘Cresap R L Scott D N 1978IEEE Trans on Power Apparatus andSystems1978,97,4:2
4Acquired mutation of the tyrosine kinase JAK2 in human myeloproliferative disorders显示文摘E Joanna Baxter Linda M Scott Peter J Campbell Clare East Nasios Fourouclas Soheila Swanton George S Vassiliou Anthony J Bench Elaine M Boyd Natasha Curtin Mike A Scott Wendy N Erber Anthony R Green 2005The Lancet . 2005 (9464)2005,,:2
5A comparison of the relative efficiency of ICSI and extended culture with epididymal sperm versus testicular sperm in patients with obstructive azoospermia显示文摘This is a retrospective cohort study comparing blastocyst transfer outcomes following intracytoplasmic sperm injection utilizing epididymal versus testicular sperm for men with obstructive azoospermia.All cases at a single center between 2012 and 2016 were included.Operative approach was selected at the surgeon’s discretion and included microepididymal sperm aspiration or testicular sperm extraction.Blastocyst culture was exclusively utilized prior to transfer.The primary outcome was live birth rate.Secondary outcomes included fertilization rate,blastulation rate,euploidy rate,and implantation rate.A mixed effects model was performed.Seventy-six microepididymal sperm aspiration cases and 93 testicular sperm extraction cases were analyzed.The live birth rate was equivalent(48.6%vs 50.5%,P=0.77).However,on mixed effects model,epididymal sperm resulted in a greater likelihood of fertilization(adjusted OR:1.37,95%CI:1.05–1.81,P=0.02)and produced a higher blastulation rate(adjusted OR:1.41,95%CI:1.1–1.85,P=0.01).As a result,the epididymal sperm group had more supernumerary blastocysts available(4.3 vs 3,P<0.05).The euploidy rate was no different.Pregnancy rates were no different through the first transfer cycle.However,intracytoplasmic sperm injection following microepididymal sperm aspiration resulted in a greater number of usable blastocysts per patient.Thus,the true benefit of epididymal sperm may only be demonstrated via a comparison of cumulative pregnancy rates after multiple transfers from one cohort.Scott J Morin Brent M Hanson Caroline R Juneau Shelby A Neal Jessica N Landis Richard T Scott Jr James M Hotaling 2020Asian Journal of Andrology2020,22,2:2
6Land-use change: effects on soil carbon, nitrogen and phosphorus pools and fluxes in three adjacent ecosystems 显示文摘Ross D J Tate K R Scott N A 1999Soil Biology and Biochemis try1999,31,:1
7Rationale of the Knee Society clinical rating system显示文摘INSALL J N DORR L D SCOTT R D 1989Clin Or- thop Relat Res1989,,248:1
8Dynamics of the human oocyte microRNA transcriptome during maturation显示文摘Lonczak A Tao X Miller K Scott R Treff N 0,,:1
9Stress-strain be- havior of concrete confined by overlapping hoops at low and high strain rates 显示文摘Scott B D Park R Priestley M J N 1982ACI Journal1982,79,1:1
10Stress-Strain Behavior of Concrete Confine by Overlapping Hoops at Low and High Strain Rates显示文摘Scott B D Park R Priestley M J N 1982ACI Journal1982,79,2:1
11Rationale of the Knee Societyclinical rating system显示文摘Insall J N Dorr L D Scott R D 1989Clin Orthop Relat Res1989,248,:1
12Sequence-tagged site markers for mic- rosatellite : simplified techniques for rapidly obtaining flanking sequences 显示文摘Thomas M R Scott N S 1994Planr Mol Biol Rep1994,12,:1
13Improving tourism destination governance:a complexity science approach显示文摘Baggio R SCOTT N COOPER C 0,,04:1
14Making sense out of sulfated tin dioxide mesostructures 显示文摘Scott R W J Coombs N Ozin G A 2003Mater Chem2003,13,:1
15The effects of delayed sowing and weather on growth,development and yield of winter oil seed rapeseed显示文摘MENDHAM N J SHIPWAY P A SCOTT R K 1981Agric Sci Camb1981,96,:1
16Destination networks: four Aus- tralian cases 显示文摘Scott N Cooper C Baggio R 2008Annals of Tourism Research2008,35,1:1
17Evaluation of microsatellite sequence tagged site markers for characterizing Vitis vinifera cultivars显示文摘Botta R Scott N S Eynard I 1995Vitis1995,34,2:1
18Network Science: A Review Fo- cused on Tourism 显示文摘Baggio R Scott N Cooper C 2010Annals of Tourism Research2010,37,3:1
19Stress-strain behavior of concrete confined by overlapping hoops at low and high strain rates显示文摘Scott B D Park R Priestley M J N 1982ACI Journal1982,79,1:1
20Improving water flood recovery of viscous crude oils by chemical control显示文摘Scott G R Collins H N Flock D L 1965J Can Petrol Technol1965,4,4:1
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